WO2006070866A1 - Appareil de fabrication d'un produit broye et produit broye fabrique a l'aide de celui-ci - Google Patents

Appareil de fabrication d'un produit broye et produit broye fabrique a l'aide de celui-ci Download PDF

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Publication number
WO2006070866A1
WO2006070866A1 PCT/JP2005/024063 JP2005024063W WO2006070866A1 WO 2006070866 A1 WO2006070866 A1 WO 2006070866A1 JP 2005024063 W JP2005024063 W JP 2005024063W WO 2006070866 A1 WO2006070866 A1 WO 2006070866A1
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WO
WIPO (PCT)
Prior art keywords
pulverized
raw material
pulverizer
screen
gas
Prior art date
Application number
PCT/JP2005/024063
Other languages
English (en)
Japanese (ja)
Inventor
Hiroshi Maeda
Mitsuo Yasui
Original Assignee
Hiroshi Maeda
Mitsuo Yasui
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hiroshi Maeda, Mitsuo Yasui filed Critical Hiroshi Maeda
Priority to JP2006550843A priority Critical patent/JPWO2006070866A1/ja
Publication of WO2006070866A1 publication Critical patent/WO2006070866A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C21/00—Disintegrating plant with or without drying of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
    • B02C13/08—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and acting as a fan
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/282—Shape or inner surface of mill-housings
    • B02C13/284—Built-in screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
    • B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/24—Passing gas through crushing or disintegrating zone
    • B02C23/28—Passing gas through crushing or disintegrating zone gas moving means being integral with, or attached to, crushing or disintegrating element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/24—Passing gas through crushing or disintegrating zone
    • B02C23/34—Passing gas through crushing or disintegrating zone gas being recirculated to crushing or disintegrating zone

Definitions

  • the present invention relates to a pulverized product manufacturing apparatus and a pulverized product manufactured using the same.
  • the pulverized material manufacturing technology is important in all technical fields such as food, pharmaceuticals, building materials, fuels, and therefore, excellent pulverized material manufacturing technology for all materials such as wood, grains, plastics, and inorganic substances. Development is required.
  • industrially in order to efficiently produce pulverized products on a large scale, not only the pulverized product manufacturing technology but also a technology for efficiently recovering the pulverized product manufactured is important.
  • As a part of the pulverized product recovery process for example, a pulverized product transport process, a storage process, etc. are used. Therefore, in order to efficiently recover the pulverized product, for example, a technique for efficiently performing these processes is also available. It becomes important.
  • the conventional pulverized product manufacturing apparatus has problems such as the limitation of the pulverized product production efficiency derived from the performance of the pulverizer, the degradation of the pulverized product quality due to the heat generated by the device, the limit of the pulverized product recovery efficiency, etc. was there. Therefore, there is a need for a pulverized material production apparatus that can produce high-quality pulverized material with higher pulverized material production efficiency and pulverized material recovery efficiency.
  • Patent Document 1 JP-A-7-194359
  • Patent Document 2 JP-A-8-23946
  • Patent Document 3 Japanese Patent Laid-Open No. 8-23947
  • an object of the present invention is to provide a pulverized product production apparatus having high pulverized product production efficiency and pulverized product recovery efficiency, and a pulverized product produced using the same.
  • the pulverized material production apparatus of the present invention includes
  • a pulverizer for pulverizing the raw material means for supplying the raw material to the pulverizer, and means for recovering the pulverized material produced by the pulverizer,
  • a passage is formed from the inside of the pulverizer to the inside of the pulverized material collecting means, and gas can pass through the inside of the passage together with the pulverized material, and a gas introduction port is provided on the side of the pulverizer.
  • a pulverized product producing apparatus wherein gas outlets are respectively formed on the pulverized product recovery means side,
  • the pulverizer has a function of generating wind force in the gas, and uses the wind force to pulverize the raw material by forcibly passing through the fine holes of the screen to produce a pulverized product, and It is a pulverizer that supplies the pulverized material into the pulverized material recovery means using the wind force.
  • the pulverized material production apparatus of the present invention uses the wind force generated by the pulverizer to pulverize the raw material and transport the pulverized material, so that the pulverized material production efficiency and the pulverized material recovery efficiency are high. This makes it possible to efficiently produce a pulverized product on a large scale.
  • the pulverized product of the present invention is manufactured using such a pulverized product production apparatus of the present invention, so that the cost is low and the quality is high.
  • FIG. 1 is a diagram showing an example of a pulverized material production apparatus of the present invention.
  • FIG. 2 is a view showing another example of the pulverized material production apparatus of the present invention.
  • FIG. 3 is a view showing still another example of the pulverized material production apparatus of the present invention.
  • FIG. 4 is a view showing still another example of the pulverized material production apparatus of the present invention.
  • FIG. 5 is a view showing still another example of the pulverized material production apparatus of the present invention.
  • FIG. 6 is a view showing a part of still another example of the pulverized material production apparatus of the present invention.
  • FIG. 7 is a view showing a part of still another example of the pulverized material production apparatus of the present invention.
  • FIG. 8 is a view showing still another example of the pulverized material production apparatus of the present invention.
  • FIG. 9 is a view showing still another example of the pulverized material production apparatus of the present invention.
  • FIG. 10 is a diagram showing an example of a pulverizer used in the pulverized material production apparatus of the present invention.
  • FIG. 11 is a diagram showing an example of an impeller used in the present invention.
  • FIG. 12 is a view showing another example of an impeller used in the present invention.
  • FIG. 13 is a view showing still another example of an impeller used in the present invention.
  • FIG. 14 is a view showing still another example of an impeller used in the present invention.
  • FIG. 15 is a view showing still another example of an impeller used in the present invention.
  • FIG. 16 is a diagram showing an example of a screen used in the present invention.
  • FIG. 17 is a diagram showing another example of a screen used in the present invention.
  • FIG. 18 is a diagram illustrating a part of the screen used in the present invention.
  • FIG. 19 is a diagram illustrating a part of a wedge wire screen used in the present invention.
  • FIG. 20 is a diagram illustrating the shape of a casing.
  • FIG. 21 is a diagram illustrating the structure of the casing and the structure combined with the screen and the impeller.
  • FIG. 22 is a diagram showing another example of a pulverizer used in the present invention.
  • FIG. 23 is a view showing still another example of a pulverizer used in the present invention.
  • FIG. 24 is a view showing still another example of a pulverizer used in the present invention.
  • Fig. 25 is a diagram schematically showing measurement conditions for the internal wind speed and air volume of the pulverizer.
  • FIG. 26 is a diagram schematically showing measurement conditions for the wind speed and air volume inside the passage in the pulverized material production apparatus.
  • FIG. 27 is a diagram schematically showing an impeller according to an example.
  • FIG. 28 is a longitudinal sectional view showing an example of a pulverized product producing apparatus in which a pulverizer and a pulverized product recovery means are arranged adjacent to each other.
  • FIG. 29 is a top view and a cross-sectional view of the apparatus shown in FIG. 28.
  • FIG. 30 is a view showing a state in which an adapter is inserted into the devices of FIGS. 28 and 29.
  • FIG. 31 is a longitudinal sectional view showing another example of a pulverized product producing apparatus in which a pulverizer and a pulverized product recovery means are arranged adjacent to each other.
  • FIG. 32 is a top view and a cross-sectional view of the apparatus shown in FIG. 31.
  • FIG. 33 is a longitudinal sectional view showing still another example of the pulverized product producing apparatus in which the pulverizer and the pulverized product recovery means are arranged adjacent to each other.
  • FIG. 34 is a view showing an example of a pulverizer in which an auxiliary gas inlet is formed!
  • FIG. 35 is a view showing an example of a vertical pulverizer in which an auxiliary gas inlet is formed!
  • FIG. 36 is a view showing another example of a pulverizer in which an auxiliary gas inlet is formed!
  • FIG. 37 is a view showing another example of a vertical pulverizer in which an auxiliary gas inlet is formed!
  • FIG. 38 is a view showing an example of a pulverized product producing apparatus using the pulverizer of FIG.
  • FIG. 39 is a diagram showing another example of a pulverized material production apparatus using the pulverizer of FIG.
  • FIG. 40 is a diagram showing an example of a pulverized material production apparatus using the pulverizer (vertical pulverizer) of FIG.
  • FIG. 41 is a view showing still another example of a pulverized material production apparatus using the pulverizer of FIG. [42]
  • FIG. 42 is a diagram showing an example of a pulverized product producing apparatus in which the pulverizer and the pulverized product recovery means are arranged adjacent to each other.
  • this pulverizer has a function of generating wind power in the gas, pulverizes the raw material using the wind power, and supplies the pulverized material into the pulverized material collecting means using the wind power. Crusher. According to such a pulverizer, there are various advantages in the production efficiency and ease of production of the pulverized product. Hereinafter, these advantages will be specifically described.
  • the solid raw material is collided with a robot, a knife or a blade, and the solid raw material is used.
  • a method of causing crushing or abrasion to the material, and further crushing it into a pulverized product As a specific example, for example, there is a method using a so-called pin mill or the like.
  • this method requires a great deal of power and time for grinding.
  • energy loss may occur due to the collision between the hammers and the blade and the solid raw material, which may lead to further reduction in grinding efficiency, and heat generated by the energy may lead to deterioration in the quality of the powder frame.
  • the pulverized product may be melted.
  • the quality may be deteriorated by heat, and the pulverization of charcoal may cause ignition of the pulverized product or powder explosion.
  • the pulverization method by collision with a hammer or a blade is effective for hard raw materials, but it is difficult to pulverize soft raw materials.
  • thermoplastics and rubbers especially thermoplastic rubbers with a glass transition temperature in the minus temperature range, gelatin, collagen, etc., are subject to plastic deformation due to thermal energy from impacts and impacts, and a large amount of fine powder is immediately produced. It is difficult to obtain. Since these raw materials are difficult to be pulverized at room temperature, they are pulverized by applying impact and friction while being kept frozen.
  • the pulverizer used in the present invention pulverizes the raw material using wind force, so that the softness and the raw material can be easily pulverized at room temperature. In addition, it solves problems such as energy loss due to collisions between hammers and blades and solid materials, reduced grinding efficiency, and reduced quality of the ground material.
  • the pulverized product of the present invention is manufactured using the pulverized product producing apparatus of the present invention including such a pulverizer, so that the pulverized product has low cost and high quality.
  • the pulverizer used in the present invention is a pulverizer that supplies the pulverized material to the inside of the pulverized material recovery means using the wind force generated by itself, so that the pulverized material of the present invention using the pulverized material is manufactured.
  • the apparatus is excellent in pulverized material transport capability and can realize high pulverized material recovery efficiency.
  • “pulverized product” refers to, for example, a powder having a particle size of 1000 m or less, but is not limited thereto, and may be a fine powder having a finer particle size, or vice versa.
  • the particle diameter may be larger than 1000 m, and for example, a fibrous pulverized material may be used.
  • a fine powder having an extremely fine particle diameter can be obtained with high quality for the reasons described above. For example, in some cases, it is possible to obtain a fine powder having a particle size of about 50 m or even smaller.
  • the “pulverized product” in the present invention is not limited to a solid, and may be a liquid or paste-like pulverized product. As will be described later, according to the present invention, a highly water-containing substance can be easily pulverized. A strike-like pulverized product can also be produced.
  • the pulverizer used in the present invention has a function of generating wind power in gas, pulverizes raw materials using the wind power, and uses the wind power to pulverize the pulverized material inside the pulverized material collection means.
  • the pulverizer is not particularly limited except that it is a pulverizer to be fed to the outer peripheral portion.
  • the pulverizer includes an outer peripheral portion (casing), a screen having fine holes, and a rotating blade (impeller).
  • the outer periphery is covered by the outer peripheral portion (casing), and the outer peripheral portion (casing) is a raw material introduction port connected to the raw material supply means, and a pulverized material discharge port connected to the pulverized material recovery means
  • the raw material inlet and the pulverized material outlet in the outer periphery (casing) are separated by a partition formed by the screen, and the rotary blade (impeller) is Said Disposed on the raw material inlet side, using the wind force generated by the rotation of the rotary blade (impeller), the raw material is pulverized by forcibly passing through the fine pore force of the screen, and the pulverized product is obtained.
  • a pulverizer that is manufactured and that supplies the pulverized product to the inside of the pulverized product recovery means using the wind force is preferable.
  • the shape of the screen is not particularly limited, but the raw material is efficiently passed through the fine holes of the screen (hereinafter sometimes referred to as “fine holes” or simply “holes”) and pulverized.
  • the screen has a cylindrical shape that is more preferably a curved surface, and is arranged so that the cylinder surrounds the periphery of the rotating blade (impeller).
  • FIG. 10 shows an example of such a pulverizer.
  • FIG. 10 (a) and FIG. 10 (b) are diagrams schematically showing the configuration of this crusher, FIG. 10 (a) is a sectional view, and FIG. 10 (b) is a perspective view. Further, FIG. 10 (c) is a perspective view showing a state in which the crusher force is also removed from the casing (outer peripheral portion).
  • the pulverizer 3 includes a casing 18, a cylindrical screen 19, an impeller 20, and a motor unit 21 as main components.
  • the screen 19 has a large number of fine holes and is arranged so that a cylinder surrounds the impeller 20.
  • the casing 18 is disposed so as to further surround the periphery of the impeller 20 and the screen 19, and a cylindrical end portion of the screen 19 is in contact with the inner wall of the casing 18.
  • the casing 18 is formed with a raw material introduction port 22 and a pulverized material discharge port 2, and the inside of the casing 18 is completely shielded from outside air at portions other than these.
  • Raw material inlet 22 is impeller It faces the front of 20 and it is possible to introduce the raw material of pulverized material into the cylinder of the screen 19 through the raw material inlet 22. Further, the pulverized material discharge port 2 faces the cylinder side surface of the screen 19.
  • the raw material introduction port 22 and the pulverized material discharge port 2 are blocked by the screen 19, and the substance can be transferred only through the fine holes provided in the screen 19.
  • the shaft portion of the impeller 20 passes through the wall of the casing 18 and extends outward, and is connected to the motor portion 21. In the portion where the shaft portion of the impeller 20 passes through the wall of the casing 18, the sealing is maintained, and the material does not move inside and outside the casing 18 through the penetration portion.
  • a pulverizer for example, by introducing the raw material from the raw material introduction port 22 while rotating the impeller 20 by the motor unit 21, the wind force generated by the impeller 20 is used.
  • the raw material can be pulverized to produce a pulverized product.
  • the manufactured pulverized material is supplied to the pulverized material recovery means through the pulverized material discharge port 2 using the wind force.
  • the charged raw material is pulverized by being forced to pass through the holes in the screen 19, but other auxiliary mechanisms include, for example, various kinds of materials inside the screen. It is considered that the particles may be pulverized by the mechanism to form relatively coarse particles. This pulverization is hereinafter referred to as “screen internal pulverization”.
  • the mechanism of the internal crushing of the screen differs depending on the material and size of the raw material, and not all are obvious. For example, the collision of the raw material by the wind generated by the impeller 20, the impeller 20 and the raw material A collision may be caused by the raw material being forced to pass between the inner wall of the screen 19 and the impeller 20.
  • the heat generated by the energy of collision and abrasion reduces the quality of the pulverized material, but in the present invention, even if heat is generated, it is easily cooled by wind power, etc. For this reason, the quality of the pulverized product is unlikely to deteriorate.
  • the pulverized material that has passed through the holes of the screen 19 may be further pulverized (crushing).
  • the impeller 20 In order to efficiently pulverize a large amount of raw material, the impeller 20 is preferably large, but it may be a size suitable for practical use in consideration of the actual pulverized product production scale. For example, industrially, in pulverized material manufacturing equipment for mass production , Force that can be as large as 2,000 mm or more in diameter. On portable table tops for the production of portable powder for food powder production, diameters as large as 50 mm or less are also possible.
  • the material of the impeller 20 is also not particularly limited, but from the viewpoint of strength and the like, for example, metals such as stainless steel, carbon steel, special steel, and titanium, ceramics, and the like are preferable.
  • the shape of the implanter 20 is preferably a shape having sufficient strength to withstand high-speed rotation.
  • the shape of the impeller 20 may be that the axial force wings only extend radially, but from the viewpoint of strength, etc., for example, a disk-shaped plate extends around the shaft, and the wings are on one or both sides. May be attached radially. From the viewpoint of grinding efficiency, 4 or more blades are preferred, and 6 or more blades are more preferable.
  • the shape of the wing is not particularly limited, but, for example, so-called plate fan (plate type), turbo fan (turbo type), etc. are preferred from the viewpoint of strong wind power generated by rotation and high crushing efficiency. A plate fan with a constant width is particularly preferred.
  • the width of the wing is relatively small with respect to the length of the wing (the radial dimension of the impeller 20).
  • the shape of the impeller 120 will be described more specifically with reference to FIGS.
  • FIG. 11 shows an example of the impeller 20.
  • Fig. 11 (a) is a front view
  • Fig. 11 (b) is a longitudinal sectional view.
  • the impeller shown in the figure is an impeller called a so-called curved swept wing turbofan.
  • the impeller 20 includes eight wings 201, a main plate 202, and side plates 203 as main components.
  • the main plate 202 has a disk shape and can be rotated in the surface direction with the center as a rotation axis.
  • the wings 201 are coupled to the upper surface of the main plate 202.
  • the wings 201 are directed in a circumferential direction from the center of the main plate 202 to bend in a direction opposite to the rotation direction, and eight pieces extend radially at equal intervals, together with the main plate 202. It can be rotated.
  • the side plate 203 has a disk shape that is the same size as the main plate 202.
  • the side plate 203 is arranged on the opposite side of the main plate 202 with the wing 201 in between, parallel to the main plate 202, and overlapped with the center. Can rotate with 201 and main plate 202. In the space between any two adjacent ones of the wings 201, the gas can pass through the outer periphery of the impeller 20 at the center.
  • the arrows in the figure indicate the direction of rotation of the impeller 20 and the direction of gas passage. As shown in the figure, when the impeller 20 rotates, the center of the impeller 20 is centered between two adjacent blades 201. The force is also toward the outer periphery Gas passes through.
  • FIG. 12 shows another example of the impeller 20.
  • Fig. 12 (a) is a front view
  • Fig. 12 (b) is a longitudinal sectional view.
  • the impeller shown in the figure is an impeller called a so-called linearly swept-type turbofan.
  • the impeller 20 is the same as FIG. 11 except for the shape of the wing 201.
  • the shape of the wing 201 is not curved but is a flat plate, and eight blades extend radially from the center of the main plate 202 toward the circumference in a direction opposite to the rotation direction at equal intervals.
  • FIG. 13 shows another example of the impeller 20.
  • FIG. 13 (a) is a front view
  • FIG. 13 (b) is a longitudinal sectional view.
  • the impeller shown in the figure is an impeller called a so-called plate fan or a linear radial airfoil.
  • the impeller 20 is the same as that shown in FIGS. 11 and 12 except for the shape of the wing 201.
  • the shape of the wing 201 is a flat plate. Eight pieces are equally spaced from the center of the main plate 202 toward the circumference, and are not inclined, but along the linear direction connecting the center (rotary axis) of the main plate 202 and the circumference. It extends radially.
  • FIG. 14 shows another example of the impeller 20.
  • FIG. 14 (a) is a front view
  • FIG. 14 (b) is a longitudinal sectional view.
  • the impeller shown in the figure is a so-called plate fan, and is the same as FIG. 13 except that it does not have a side plate.
  • the width of the wing 201, that is, the vertical dimension of the surface of the main plate 202, the impeller 20 central force also increases toward the outer periphery, and increases slightly in the vicinity of the central portion, and thereafter is constant.
  • FIG. 15 shows another example of the impeller 20.
  • Fig. 15 (a) is a front view
  • Fig. 15 (b) is a longitudinal sectional view.
  • the impeller shown in the figure is also a kind of plate fan, and is the same as FIG. 14 except that the shape of the wing 201 is a tapered shape. That is, the width of the impeller wing 201 increases the force at the center of the impeller 20 toward the outer periphery, increases for a short time near the center, and then decreases as the force toward the outer periphery.
  • Impellers such as those shown in Figs. 11 to 15 are used in various blowers, gas suction machines, and the like.
  • a gas suction machine having such an impeller is used.
  • the gas inside the pulverized material manufacturing apparatus was sucked.
  • the technology for producing powdered food using wind power has been strong.
  • pulverizers that pulverize raw materials with rotating blades, but the raw materials are pulverized with a cutting blade or non-marmer attached to the rotating blades. There are problems in terms of quality, cost, etc.
  • the present inventors have found a structure of a pulverizer suitable for producing pulverized material using wind power and supplying the pulverized material inside the pulverized material collecting means using the wind force. In this way, high-cost pulverized product manufacturing efficiency and pulverized product recovery efficiency were realized.
  • Impellers used for various blowers, gas suction machines, and the like are required to have sufficient strength for securing the air volume and pressure, but the impellers used in the pulverizer in the present invention have higher strength. preferable.
  • the degree of comparison with conventional rotary blade pulverizers is low, but collision with the raw material, passage of raw material and coarse particles between the tip of the impeller and the inner wall of the screen.
  • a load is applied to the impeller due to smashing of pulverized material between the impeller and the casing.
  • the impeller used for the pulverizer in the present invention has a strength that can withstand these, and in order to absorb fluctuations in the rotational speed, motor load, and the like based on these. Those having a large inertial force are preferable.
  • the main plate is thick and heavy in terms of both strength and inertial force.
  • a turbo-type impeller generates wind force of a wind direction close to a right angle with respect to the screen, and forcibly passes the screen holes immediately.
  • the power of is considered to be more powerful.
  • the plate-type impeller is more suitable for generating a swirling flow inside the screen and allowing the raw materials and coarse particles to flow freely, and it is considered that a stable air volume is easily secured. And scree It is considered that the force for causing internal crushing is stronger.
  • the viewpoint power that the in-plate without the side plate is less likely to restrict the free flow of the raw material, and the pulverized material is less likely to be accumulated in the space between the wings is preferable.
  • a tapered plate fan as shown in FIG. 15 if a tapered plate fan as shown in FIG. 15 is used, a higher crushing force can be obtained.
  • a tapered impeller is particularly suitable for pulverizing hard raw materials that require particularly high crushing power.
  • the inner shape of the casing is tapered in accordance with the impeller, that is, the peripheral width is narrow.
  • a wide impeller as shown in FIG. 14 is particularly suitable for pulverizing a raw material with a high water content, a soft raw material, a sticky raw material, and the like. Specific examples of such raw materials include plant-derived raw materials such as cereals and weeds, flexible polymer substances, and the like.
  • the shape of the impeller used in the pulverized material production apparatus of the present invention is not limited to the shape shown in FIGS. 11 to 15, and any shape is possible. Depending on the situation, it may be properly used.
  • the material of the screen 19 is not particularly limited, but from the viewpoint of strength, wear resistance, processability, corrosion resistance, etc., for example, metals that are preferred for metals or ceramics are, for example, carbon steel, stainless steel, special steel Steel, titanium and the like are more preferable.
  • the thickness of the screen 19 is not particularly limited, it is, for example, 0.5 to 30 mm, and 1.0 to 30 mm force S from the viewpoints of strength, workability of fine holes, reduction of pressure loss in the screen 19, etc. 1. 5 to 10 mm is more preferable.
  • the shape of the screen 19 is particularly preferably a cylindrical shape as shown in FIG. 10 as described above, but other shapes are also possible.
  • the screen 19 is cylindrical, if the thickness is large, there is an advantage that the screen 19 can be easily manufactured from the viewpoint of circular processing accuracy and the like. However, from the viewpoint of easy passage of the pulverized material, it is preferable that the screen 19 is not too thick!
  • FIG. 16 shows an example of the shape of the screen 19.
  • Fig. 16 (a) shows the state without the reinforcing plate
  • Fig. 16 (b) shows the state with the reinforcing plate attached.
  • the screen 19 includes a screen effective portion 191 and a screen support portion 192 as main components.
  • the screen effective portion 191 and the screen support portion 192 are integrally formed in a cylindrical shape, and the lower portion of the cylinder forms a force S screen support portion 192, and the remaining majority forms the screen effective portion 191.
  • RU Screen effective part 191 has fine holes on the side However, the screen support portion 192 does not have micropores on the side surface.
  • FIG. 16 (b) shows a state in which three ring-shaped reinforcing plates 193 are attached to the screen of FIG. 16 (a).
  • Each of the reinforcing plates 193 surrounds the cylindrical portion of the screen 19, and one reinforcing plate 193 is disposed at each of the lower end, the middle portion, and the upper end of the cylindrical portion.
  • a bolt hole is provided in the upper end of the cylindrical portion, that is, the reinforcing plate 193 on the opposite side of the screen support portion 192, and the screen 19 can be connected to the casing 18 through this bolt hole.
  • the length of the screen effective portion 191 (the cylinder height direction, that is, the dimension in the direction perpendicular to the rotation surface of the impeller 20) is not particularly limited, but the width of the outer periphery of the impeller 20 (in the direction perpendicular to the rotation surface). The same force as (dimension) and wider than that is preferable for smooth passage of the crushed material.
  • the strength of the screen 19 is sufficiently strong to withstand the wind pressure when the impeller 20 is rotated.
  • the screen 19 is rotated. More preferably, it can withstand the internal pressure of the screen.
  • the internal pressure of the screen includes an impact force when raw materials and coarse particles pass between the screen 19 and the impeller 20, and a force when reducing the pressure by sucking the gas outside the screen 19, for example.
  • the screen 19 can withstand.
  • the reinforcing plate 193 may be omitted if not necessary. Since the strength becomes more important as the screen becomes larger, it is preferably reinforced with a reinforcing plate or the like.
  • FIG. Figure 17 shows an example.
  • this screen has a screen effective portion 191 and a screen support portion 192 similar to those in FIG. 16 as main components, and a reinforcing plate 193 is further attached.
  • the reinforcing plate 193 includes one ring-shaped reinforcing plate at the lower end of the screen cylindrical portion, two at the middle portion, and one at the upper end as compared with FIG. 16 (b).
  • four straight reinforcing plates are arranged at equal intervals around the screen cylindrical portion so as to be orthogonal to them, and the lower end force of each screen cylindrical portion is also passed through the ring-shaped reinforcing plate.
  • the reinforcing plate 193 has a bolt hole at the position of the upper end of the cylindrical portion of the screen and can be connected to the casing 18, and the screen support 192 can be connected to the opposite side of the casing 18 with a bolt.
  • FIGS. 18 (a) and 18 (b) are diagrams schematically showing a part of the screen surface. As shown in the figure, slit-like holes are provided on the surface of the screen effective portion 191. The slit-like holes are all parallel in FIG. 18 (a) and zigzag in FIG. 18 (b). Yes. In both of FIGS. 18 (a) and 18 (b), the reinforcing plate 193 passes between the slits (that is, the position where there is no hole).
  • the hole area ratio in the screen 19 is not particularly limited, but is preferably not too low from the viewpoint of the production efficiency of the pulverized product. That is, if the aperture ratio is high, a large amount of pulverized product force S screen 19 can be passed within a certain time, so that the pulverized product production efficiency is improved. If the aperture ratio is not too low, there is little risk that the internal pressure of the screen 19 will be too high due to wind pressure and the device will be damaged.
  • the aperture ratio is preferably not too high from the viewpoint of the strength of the screen 19.
  • the hole area ratio is, for example, 5 to 60%, preferably 10 to 60%, and more preferably 18 to 40%.
  • the open area ratio is defined as S (m 2 ), the total area of the holes provided in the screen effective portion 191 on the inner side of the screen 19, that is, the side facing the raw material introduction port 22. Assuming there is no
  • P is the porosity (%).
  • P is the porosity (%).
  • the portion where the screen hole is blocked by the ring-shaped reinforcing plate or the like is not included in the area S (m 2 ) of the screen effective portion 191.
  • the shape of the holes in the screen 19 is not particularly limited, and may be, for example, a circle or any other shape such as a polygon, a slit, or an ellipse.
  • the shape and size of the holes may be the same or different on the inner side (impeller 20 side) and the outer side (side facing the casing 18) of the screen 19, for example, the screen 19 A so-called mortar-shaped hole having a slightly larger outside than the inside may be used.
  • the slit shape is preferred.
  • a mortar shape is preferable.
  • a so-called semi-conical hole having a circular shape inside and outside the screen 19 may be used.
  • the slit shape and the mortar shape are preferable from the viewpoint of further suppressing heat generation during pulverization.
  • the reason why the heat generation force S can be kept lower is not always clear, but for example, because the gas passage efficiency is good, cooling of the pulverized material itself, cooling of the screen 19, impeller 20 etc. is more efficient. Can be considered.
  • the direction of the long side and the short side of the slit is not particularly limited, for example, a slit shape that is long in the rotational direction of the impeller 20 and short in the perpendicular direction (hereinafter referred to as a parallel slit).
  • a slit shape that is long in the rotational direction of the impeller 20 and short in the perpendicular direction
  • the slit shape (hereinafter referred to as a right-angle slit) having a short rotation direction of the inverter 20 and a long perpendicular direction may be used.
  • the right-angle slit makes it easier to pulverize the raw material
  • the parallel slit makes the passage efficiency of gas and pulverized material higher.
  • the screen 19 may be provided with both parallel slits and right-angle slits. Further, the long side force of the slit may be inclined at an arbitrary angle that is neither parallel nor perpendicular to the rotation direction of the impeller 20.
  • the size of the pores in the screen 19 is not particularly limited, and the particle size of the pulverized product to be obtained may be appropriately selected in consideration of the production efficiency of the pulverized product!
  • the diameter is, for example, 0.20 to: L0 mm, preferably 0.25 to 3. Omm.
  • the length of the short side is, for example, 0.20 to 3. Omm, preferably 0.25 to 2. Omm
  • the length of the long side is, for example, 2.0 to 50 mm, preferably 5 0 to 30 mm, more preferably 10 to 30 mm.
  • the length of the short side of the slit is, for example, 1Z10-1Z150, Preferably they are 1Z15-1Z100, More preferably, they are 1Z20-1Z50.
  • the slit-shaped holes may be rectangular holes having a short side length of 0.25 mm and a long side length of about 10 mm, for example.
  • the inside of the screen 19 is, for example, a circle of 0.25 to 3. Omm, preferably 0.25 to 5. Omm, and the outside is, for example, 0.4 to 5. Omm. Preferably, it is a circle of 0.6 to 8. Omm.
  • the number of holes on the screen 19 is made as small as possible, and the number of holes is increased as much as possible in order to increase the opening ratio.
  • the method for opening holes in the screen 19 is not particularly limited, and a so-called punching method or the like may be used. However, using methods such as laser, electron beam, and plasma processing, it is possible to open complex holes such as slits and mortars and immediately open many fine holes and maintain the strength of the screen 19 immediately. However, it is preferable because the hole area ratio can be further increased.
  • the size of the screen 19 itself is not particularly limited, and may be appropriately set according to the size of the impeller 20 or the like.
  • the raw material is pulverized by forcibly passing through the fine pores of the screen to produce a pulverized product. I prefer that the area is large.
  • the screen 19 may be a so-called wedge wire screen.
  • Wedge wire screens are used in applications such as water treatment, dehydration, filtration and sieving. In the case of use in the present invention, for example, a known material may be applied as appropriate, and the strength and the like may be increased by, for example, caulking as necessary.
  • FIG. 19 shows an example of a wedge wire screen used in the present invention.
  • Fig. 19 (a) is a perspective view showing a part of an example of a wedge wire screen
  • Fig. 19 (b) is a perspective view showing a part of another example of a wedge wire screen.
  • (F) to (f) are cross-sectional views illustrating various shapes of the wire rod. In the wedge wire screen shown in Fig.
  • straight wire rods 194 having a triangular cross section are arranged in parallel to form a cylinder, and each wire rod 194 has a longitudinal direction that is a circumferential direction, that is, an impeller. It is perpendicular to the direction of rotation.
  • the base of the triangle in each wire rod 194 faces the inside of the cylinder and the apex faces the outside.
  • an appropriate number of ring-shaped reinforcing plates (support rods) 193 are attached at appropriate positions.
  • 19 (b) is a ring-shaped wire rod 1 94 are stacked to form a cylinder, and an appropriate number of straight reinforcing plates (support rods) 193 are attached at appropriate positions on the inner side of the cylinder and extend from the upper end to the lower end of the cylinder.
  • Each wire rod 194 has a triangular cross section, with the base of the triangle facing the outside of the cylinder and the apex facing the inside.
  • the wire rods 194 are arranged at appropriate intervals, and the substance can pass through the gaps between the wire rods 194 and the support rods 193.
  • the shape of the entire wedge wire screen may be the same as that shown in FIG. 16 (b) or FIG. 17, for example. That is, the aggregate of the wire rods 194 may form the screen effective portion 191 and further have the screen support portion 192.
  • the shape of the cross section of the wire rod 194 may be, for example, a triangle as shown in FIG. 19 (c).
  • the size of this triangle is, for example, the bottom length W is 1.19mm and the height H is 2.24mm. W is 1.52mm, H is 2.54mm, W is 3.81mm, H However, it may be 5.56 mm, but is not limited to these and is optional.
  • the cross section of the wire rod 194 may be, for example, a shogi piece pentagon as shown in FIG. 19 (d).
  • the pentagon may have a base length W of 3.30 mm and a height H of 5.35 mm, but is not limited thereto and is arbitrary.
  • the shape of the cross section of the wire rod 194 may be any other shape such as a drop shape as shown in FIG. 19 (e) or a circle as shown in FIG. 19 (f).
  • Such wedge wire screen works as a gap force between the wire rod and the support rod S screen hole (fine hole), and it is easy to set the gap width of the wire rod narrow, so it is extremely fine Also suitable for powder production.
  • the wire rod gap width is not particularly limited, and may be, for example, about 0.125 mm inside the screen, but may be any gap width larger or smaller. Also, by acting as a gap force S screen hole (fine hole) between the wire rod and the support rod, the same effect as the slit-like hole can be obtained, and by setting the shape of the wire rod cross section appropriately, The same effect as mortar-like holes can be obtained.
  • the wire rod cross-section should be wide and narrow on the inside of the screen, and the wire mouth gap width should be narrow on the inside of the screen and wide on the outside. You can do it.
  • the direction of the wire rod is not particularly limited, for example, the force as shown in FIG. 19 (a) or (b) However, it is particularly preferable that the material is perpendicular to the rotation direction of the impeller because the raw material can be easily pulverized and an extremely fine powder can be obtained.
  • the preferred strength, porosity and the like when the screen 19 is wedge wire screen are not particularly limited, but are the same as those described above, for example.
  • the gap width between the impeller 20 and the inner wall of the screen 19 is appropriately adjusted according to the size of the raw material to be charged, the effect of further improving the pulverization efficiency and further suppressing the heat generation during pulverization, etc. Obtained and preferred.
  • the gap width depends on the size of the raw material, but is, for example, 1 to 50 mm, preferably 2 to 30 mm, more preferably 3 to 25 mm, particularly preferably 5 to 20 mm, for example, about 8 mm or 15 mm. Also good!
  • the screen 19 and the impeller 20 can be detached. Furthermore, if the screen 19 and the impeller 20 having different sizes and shapes can be appropriately selected by desorption according to the type and size of the input raw material, the particle size and shape of the intended pulverized product, etc. More preferable.
  • the length (cylinder height) is set to a constant value (eg 240 mm) and the diameter is several types (eg 300 mm, 350 mm, 400 mm and 50 Omm) depending on the amount of input raw materials.
  • dozens of types of screens 19 in which the shape and diameter of the holes are variously changed may be prepared, and may be appropriately replaced depending on the purpose.
  • What particularly affects the particle size and shape of the pulverized product obtained is the shape and pore size (opening diameter) of the pores in the screen 19.
  • the pores are circular, particles that are relatively close to a sphere can be easily obtained.
  • the shape is slit-like, elongated particles such as spheroids tend to be obtained relatively easily.
  • Oval particles may be mixed. However, this tendency depends on other conditions such as the type of raw material and is not absolute.
  • the casing 18 Since the pulverizer 3 is a pulverizer that pulverizes the raw material using wind power generated by the pulverizer itself, the casing 18 is preferably excellent in strength and airtightness. If the casing 18 is strong, the power of the crusher 3 can be prevented from being damaged when the inside of the crusher 3 is pressurized by wind force. The preferred casing 18 has excellent airtightness! / I also like the ability to prevent unwanted and leaking things.
  • FIG. 20 (a) is an example of a powder mill used in the present invention
  • FIG. 20 (b) is another example, both of which are sectional views as seen from the front side of the impeller 20.
  • the impeller 20 is rotating near the center, and the periphery thereof is surrounded by a substantially cylindrical casing 18, and a pulverized material discharge port is provided on one side of the casing 18.
  • the impeller is provided along the direction of rotation of the impeller 20.
  • the arrow on the outside of the casing 18 indicates the direction of rotation of the impeller 20, and the arrow on the inside indicates the wind direction inside the casing 18.
  • the screen 19 is omitted for simplification.
  • the shape of the screen shown in FIG. 20 (a) is preferable, for example, when the crushed material is discharged using only the wind force generated by the impeller 20.
  • the wind direction inside the screen 18 tends to be a direction along the rotation direction of the impeller 20. Therefore, it is preferable that the gap width between the impeller 20 and the casing 18 is narrow on the far side, which is wider on the side closer to the pulverized material discharge port, in the wind direction, as shown.
  • the shape of the screen shown in Fig. 20 (b) is, for example, the same as the wind force generated by the impeller 20, and the pulverized product discharge loca also sucks gas and uses the suction force to discharge the pulverized product. This is preferable.
  • the wind direction inside the screen 18 tends to be along the gas suction direction. Therefore, as shown in the figure, it is preferable that the gap width between the impeller 20 and the casing 18 is widened at the position close to the pulverized material discharge port and that the inner wall of the casing 18 is not made as cornered as possible. In this way, it is possible to prevent or reduce the adhesion and accumulation of the pulverized product in the vicinity of the pulverized product discharge port, and the flow of the pulverized product becomes smooth.
  • FIG. 21 illustrates the structure of the casing and the structure combined with the screen and the impeller.
  • FIG. 21 (a) is a perspective view showing an example of the structure of the casing.
  • Fig. 21 (b) is a cross-sectional view of a part of a crusher having the same structure as Fig. 10 (a), and the casing of Fig. 21 (a) is replaced with a screen similar to Fig. 16 or Shows the structure combined with the impeller.
  • the casing 18 as a whole has the same structure as the casing 18 shown in FIG. 10, and includes a casing body 181 having a pulverized material discharge port 2 and a raw material introduction port 22. It can be separated into the raw material introduction port part 182.
  • Raw material inlet 182 A ring is attached around one end of the raw material introduction port 22 and can be connected to the casing body 181 through a bolt hole provided in the ring.
  • the support plate of the screen support part 192 is sandwiched between the casing body 181 and the raw material introduction port part 182 and fixed with bolts.
  • Part 191 can be bolted. In this way, the screen can be easily detached and the grinder can be easily cleaned.
  • the bolt for fixing the screen and the casing is firmly tightened.
  • the periphery of the rotating shaft of the impeller 20 is sufficiently sealed with a mechanical seal or the like. This is especially true when the gas inside the pulverizer is sucked with a powerful gas suction device such as a roots blower (Roots type suction machine) or when the inside of the pulverizer is replaced with an inert gas such as nitrogen. is important.
  • the strength of the casing is preferably able to withstand the pressurized state inside the pulverizer.
  • the pulverized product is discharged by sucking gas from the pulverized product discharge loci.
  • the casing strength is higher.
  • the shape of the casing is not limited to the shape shown in FIG. 21 and the like, and any shape is possible.
  • the inner shape of the casing is tapered according to the impeller, that is, the width of the periphery is narrow as shown in FIG. It is particularly preferred. In this way, for example, effects such as a more uniform wind speed inside the casing can be obtained.
  • FIG. 23 when a round shape is used without forming a corner that becomes the inner wall of the casing, the viewpoint power that pulverized material does not easily accumulate on the corner is also preferable. From this point of view, for example, the case shown in FIG.
  • the cross-sectional shape of the inner wall of the outer peripheral portion may be a semicircular shape.
  • the material and size of the motor unit 21 are not particularly limited, and can be set as appropriate according to the purpose.
  • a known motor or the like can be used as appropriate, and the motor unit 21 has a rotational speed according to the type, size, amount, etc. of the raw material that is preferably capable of high-speed rotation for efficient grinding. It is more preferable if it can be changed.
  • the rotation shaft of the impeller may be arranged in parallel to the direction in which gravity acts. That is, the direction of the rotating surface of the impeller may be a horizontal direction. In this case, “parallel” or “horizontal” may be strictly parallel or horizontal, or may be substantially parallel or horizontal. This rubbing is preferable because the accumulation of pulverized material due to the influence of heavy force is less likely to occur inside the pulverizer, the unevenness of the pulverization load due to the effect of gravity can be reduced, and the wind speed is more easily uniformized. .
  • FIG. 24 shows an example of the structure of such a pulverizer.
  • Fig. 24 (a) is a longitudinal sectional view and Fig. 24 (b) is a transverse sectional view.
  • the impeller 20 has a horizontal rotation surface, and the raw material inlet 22 is provided directly above the impeller 20, and on the left and right of the raw material inlet 22.
  • air inlet 1 is provided adjacently and pulverized product outlet 2 is provided, one at each end of casing 18, for a total of two. It is the same as a crusher.
  • a motor unit (not shown) is connected to the impeller 20. If the rotation axis of the impeller is parallel to the direction in which the gravity acts, the influence of gravity on the discharge of the pulverized product can be reduced, so that the pulverized product discharge port can be easily provided at an arbitrary position. Therefore, for example, it is easy to provide a plurality of pulverized product discharge ports 2 as shown in FIG.
  • One pulverized product discharge port may be used, but a plurality of pulverized product discharge ports as shown in the figure is preferable because the flow of the pulverized product between the screen 19 and the casing 18 becomes smoother. This effect is particularly noticeable when the pulverized material is discharged by the gas suction force of the pulverized material discharge loca.
  • the present invention is not limited to this. It is not necessary.
  • the rotational axial force of the impeller is pulverized in parallel with the direction in which gravity acts.
  • the machine is sometimes referred to as a “saddle-type” crusher.
  • the pulverized material is produced using the wind force generated by the pulverizer, and the pulverized material is collected inside the pulverized material collecting means using the wind force. Therefore, high pulverized product manufacturing efficiency and pulverized product recovery efficiency can be realized.
  • the pulverized material production apparatus of the present invention includes a pulverizer, raw material supply means, and pulverized material recovery means.
  • the pulverized material recovery means collects the pulverized material by centrifugal force separation.
  • the gas suction device may further include a gas suction device, the gas suction device being connected to the gas outlet port in the passage, and capable of sucking the gas inside the pulverized material manufacturing apparatus from the gas outlet port. More preferred.
  • Fig. 1 (a) shows an example of such an apparatus for producing pulverized material.
  • this pulverized product manufacturing apparatus includes a pulverizer 3, a raw material inlet 14 as a raw material supply means, a means (centrifugal separation means) 4 for collecting pulverized material by centrifugal force separation, and the centrifugal separator.
  • a means (filter collecting means) 6 for filtering and collecting the pulverized material collected by the means and a gas suction device 15 are the main components.
  • the pulverizer 3 has a pulverized product outlet 2, and the structure of the other parts in the pulverizer 3 is as shown in FIG. As shown in FIG.
  • the pulverized material production apparatus further includes an air suction port (gas inlet port) 1, a pulverized material collector (collector) 5, and an air outlet (gas outlet port). 7 and including.
  • the air inlet 1 is connected to the raw material inlet of the pulverizer 3 through a passage, and the raw material inlet 14 is connected to the middle of the passage.
  • the pulverized product discharge port 2 of the pulverizer 3 is connected to the centrifugal separation means 4 through another passage, and the pulverized material and air can be supplied into the centrifugal separation means 4 through the passage. Centrifugation means 4 is further filtered and collected through another passage The pulverized material and air can be supplied to the inside of the filtration and collection means 6 through the passage.
  • the filtration / collection means 6 is connected to a gas suction device 15, and the gas suction device 15 is connected to an air outlet 7, and the pulverized material and air are separated by a filter provided inside the filtration / collection means 6. Thus, only air can be discharged from the air outlet 7 via the gas suction device 15. Further, an opening / closing valve 17 is provided below the centrifugal separation means 4 and the filtration collection means 6. Under each of them, a collector 5 is provided, and the pulverized material in the centrifugal separator 4 and the filtration collector 6 can be collected via an open / close valve 17. The interiors of the passages are connected via other components and the like, and air can pass from the air inlet 1 to the air outlet 7.
  • the centrifuge 4 is not particularly limited, but for example, a so-called cyclone dust collector (sometimes simply referred to as “cyclone”) is preferable.
  • the filtration collection means 6 is not particularly limited, but for example, a so-called bag filter is preferable.
  • the gas suction device 15 is not particularly limited, and a gas suction device or the like that has been conventionally used may be used as appropriate. For example, a gas suction device using a turbofan or a suction fan, a root blower, etc. Etc.
  • the arrows in the figure indicate the directions in which raw materials, pulverized products, air, etc. move (transport) in the pulverized product manufacturing process.
  • the pulverized material production method using the pulverized material production apparatus in FIG. 1 (a) can be performed, for example, as follows. That is, first, the impeller 20 (FIG. 10) in the pulverizer 3 is rotated to generate wind force, and at the same time, the gas suction unit 15 is operated to suck the gas inside the apparatus.
  • the direction of rotation of the impeller 20 is the direction in which wind power is generated from the air inlet 1 toward the air outlet 7. That is, air is sucked from the air suction port 1 by the rotational force of the impeller 20, and the air finally passes through the pulverizer 3, the centrifugal separator 4, the filtration collection means 6, and the gas suction machine 15. Is discharged from the air outlet 7.
  • the wind taken into the crusher 3 by the impeller 20 is dispersed and accelerated in the direction along the inner wall of the screen 19.
  • the raw material of the pulverized material is forced into the screen 19 holes by this accelerated wind, and is further pulled out by the suction force of the gas suction machine 15, thereby forcibly passing the screen 19 holes. And crushed.
  • the pulverizer 3 is pressurized by the wind force generated by the impeller 20, the inside of the screen 3
  • the raw material can be crushed more effectively by “pulverization” or the like.
  • the wind speed required to bring the inside of the pulverizer 3 into such a state is, for example, 15 mZsec or more, preferably 30 mZsec or more, more preferably 40 mZsec or more, and the upper limit of the wind speed is not particularly limited, but for example 150 mZsec. It is as follows.
  • the number of revolutions of the impeller 20 necessary to obtain such wind speed is 720-10, OOOr.pm preferably if the force depends on the shape, size, etc. of the impeller 20, the screen 19 and the casing 18.
  • rpm represents the rotation speed per minute.
  • the centrifuge 4 is operated.
  • the operating conditions are not particularly limited.
  • the rotational speed of the centrifuge 4 can be appropriately set according to the particle size of the pulverized product to be obtained.
  • This operating condition may be set with reference to, for example, the operating conditions of a cyclone dust collector in the prior art.
  • the centrifugal separation means 4 is preferable in terms of energy efficiency and the like when operated using wind power generated by the pulverizer 3 and the gas suction device 15. In some cases, it is possible to operate only with the wind force generated by the pulverizer 3 and the gas suction device 15 or only with the wind force generated by the pulverizer 3.
  • the present invention can pulverize raw materials that are difficult to pulverize by conventional techniques, and therefore can be applied to a wide range of raw materials.
  • the raw material is not particularly limited, and examples thereof include organic materials, inorganic materials, plant-derived materials, and animal-derived materials. Only two types may be used, or two or more types may be pulverized simultaneously.
  • the hard raw material can be, for example, glass, stone, wood, and the like, and the soft raw material can be, for example, an elastomer such as a thermoplastic rubber, thermoplastic resin, bamboo, or the like.
  • elastomers having a glass transition in the negative temperature region, collagen, gelatin and the like have been difficult to grind by the prior art, but can be easily grinded according to the present invention.
  • charcoal, plastics, and the like that easily cause ignition and plastic deformation can be pulverized.
  • sardine cocoons and high water content substances such as green bamboo, raw wood, undried cereals, beans, vegetables and fruits can be easily pulverized.
  • this invention is suitable for grind
  • not only water but also other raw materials containing liquid substances can be effectively pulverized by means such as drying with wind force, as with high water content substances.
  • the size, length, shape, and the like of the raw material are not particularly limited, but it is preferable that the raw material that is too large is appropriately sized in advance by preliminary pulverization, cutting, or the like. Further, as described above, depending on the type and size of the raw material, the particle size of the pulverized product to be obtained, the shape and size of the impeller 20 and the screen 19, the shape and size of the screen 19 pores, It is preferable to adjust the gap width between the inner wall 20 and the inner wall 19 appropriately.
  • the input amount (processing amount) of the raw material is not particularly limited, but in order to obtain higher pulverization efficiency, an amount that does not exceed the processing capacity of the pulverizer is continuously input as much as possible at a constant rate.
  • the raw material supply means is a rotary valve, screw feeder
  • raw material supply amount adjusting means such as a fixed amount feeder (constant feedware etc.) may be provided.
  • the amount of raw material processing varies greatly depending on the type of raw material (material) and the particle shape (particle size) of the desired pulverized material. For example, wood powder with a particle shape (particle size) of 200 / z ⁇ to 300 / ⁇ m is used.
  • the mechanism by which the raw material is pulverized by the pulverizer 3 is different depending on the material and size of the raw material, and not all is clear, but forced passage through the screen 19 holes. Other than that, for example, as described above.
  • the final particle size of the pulverized product is determined by the force that is affected by various conditions. For example, the crushed product that has passed through the screen 19 pores is further pulverized by crushing (crushing). Of about 1Z3 to 1Z5 or less.
  • One of the methods for controlling the particle size of the final pulverized product is to adjust the residence time in the screen 19 while the raw material is charged. If the residence time is long, the particle size of the pulverized product tends to be weak. In order to lengthen the residence time, for example, there are methods such as increasing the rotational speed of the impeller 20 and suppressing the gas outflow amount by means such as providing a valve at the air outlet 7.
  • the pulverized material obtained by pulverizing the raw material by the pulverizer 3 is supplied to the centrifugal separator 4 by the wind force of the pulverizer 3 and the suction force of the gas suction device 15.
  • the pulverized product is separated from the air by the centrifugal separator 4 and collected in the collector 5 below the centrifugal separator 4.
  • the centrifugal separator 4 can also collect the pulverized material by centrifugal force separation using the wind force generated by the pulverizer 3 and the suction force of the gas suction device 15. Further, the pulverized material that cannot be separated by the centrifugal separator 4 is supplied to the filtration / collecting means 6 together with the air and separated from the air by the filter.
  • the air is discharged from the air outlet 7, and the pulverized material is collected in the collector 5 below the filtration collection means 6. In this way, the centrifuge hand The target pulverized product is collected in the collector 5 below the stage 4 and the filtration and collection means 6.
  • the pulverized material production method using the pulverized material production apparatus of FIG. 1 (a) can be carried out.
  • the gas passage efficiency in the screen 19 when the gas passage efficiency in the screen 19 is low, the pressure difference between the inside and outside of the screen 19 tends to be large, and thus the strength of the screen 19 is particularly important.
  • it may be reinforced by a cage-shaped reinforcing plate, and further connected and fixed to the casing 18. good.
  • it is also effective to insert a support column, a reinforcing plate, etc. into the gap between the inner wall of the casing 18 and the outer wall of the screen 19 as appropriate, and to fix the outer wall of the screen 19 to the inner wall of the casing 18 through it.
  • suitable conditions such as the aperture ratio and the hole shape of the screen 19 for obtaining a sufficient gas passage efficiency are as described above, for example.
  • the wind speed inside the pulverized product production apparatus is not particularly limited, but from the viewpoint of the wind speed suitable for transporting the pulverized product, for example, 10 to 50 mZsec, preferably 15 to 45 mZsec, more preferably 20 to 40 mZsec, particularly Preferably, it is 20 to 30 mZsec, and the upper limit of the wind speed is not particularly limited, but is, for example, lOOmZsec or less.
  • the mixing ratio between the pulverized product and gas that is, the value obtained by dividing the transport amount (kgZsec) of the pulverized product per unit time by the gas flow rate per unit time (kgZsec) is from the viewpoint of smooth crushed product transport, etc. For example, it is 0.3 to 35, preferably 1 to 30, more preferably 2 to 20, still more preferably 3 to 15, and particularly preferably 5 to 10.
  • the air speed and air volume inside the screen in the pulverizer, and the air speed and air volume inside the passage in the pulverized material producing apparatus are values measured under the following measurement conditions.
  • the following description is merely an example of measurement conditions and does not limit the present invention.
  • FIG. 25 shows an apparatus for experimentally measuring the wind speed and the air volume inside the screen at the time of producing the pulverized product.
  • this device is connected to the pulverized material outlet 2 of the pulverizer 3 with piping 2 3 is connected, and a throttle device 28 is connected to the outlet of the pipe 23.
  • a rectifying plate 24, a rectifying wire mesh 25, a Pitot tube flow meter 26, and a thermometer 27 are connected in this order toward the pulverized product outlet 2 side force toward the throttling device 28 side.
  • the pulverizer 3 is the same as the pulverized product except that the screen is not attached.
  • the pulverizer 3 is operated under the same conditions as in the manufacture of the pulverized product, and the wind speed (flow velocity) in the pipe 23 is calculated by the Pitot tube flowmeter 26 based on the difference between the total pressure and the static pressure. Then, the air flow (flow rate) can be calculated by multiplying the cross-sectional area of the pipe 23 by the wind speed. These are estimated as the wind speed and air volume inside the screen when producing the pulverized product.
  • FIG. 26 shows an apparatus for experimentally measuring the wind speed and air volume inside the pulverized material production apparatus passage during the pulverized material production.
  • a pipe 23 is connected to the gas suction machine 15, and a throttle device 28 is connected to the inlet of the pipe 23.
  • a rectifying plate 24, a rectifying wire mesh 25, a Pitot tube flow meter 26 and a thermometer 27 are connected in this order from the expansion device 28 side toward the gas suction device 15 side.
  • the gas suction machine 15 is operated under the same conditions as in the production of the pulverized product, and the wind speed in the pipe 23 (based on the difference between the total pressure and the static pressure (suction pressure) by the Pitot tube flowmeter 26 ( Flow rate).
  • the air volume (flow rate) can be calculated by multiplying the wind speed by the cross-sectional area of the pipe 23. These are estimated as the wind speed and the air volume inside the pulverized material production device passage during pulverized material production.
  • the gas suction device can be omitted if not necessary, and the pulverized product can be transported and recovered only by the wind force generated by the pulverizer.
  • a gas suction device for example, the clogging of the screen and the crushed material in the vicinity of the screen hole can be prevented from being loosened, and the crushed material can be immediately supplied to the inside of the pulverized material collecting means. It is preferable because it becomes smoother. This effect is particularly remarkable when the screen holes are very fine.
  • the internal pressure of the screen S is increased by the wind pressure of the impeller, and the outside of the screen is reduced by suction of gas. Further, the force for forcibly passing through the fine holes in the screen becomes larger, and the pulverized product production efficiency is further increased. Furthermore, for example, the difference between the internal pressure of the screen and the external pressure (assuming ⁇ ) is appropriately adjusted by a gas suction device. When adjusted to the maximum, the material can be crushed smoothly and the raw material input (processing amount) can be easily increased. That is, for example, if ⁇ is increased by increasing the suction force of the gas suction device, the original
  • the upper limit of the processing amount of the material is greatly reduced.
  • the suction pressure (inlet pressure) of the gas suction unit 15 is -200mmAq (-1.96kPa) relative to the external pressure
  • the centrifugal separating means is connected to the raw material inlet of the pulverizer, and the crushed crushed material that is not collected by the filtration and collecting means is again collected. It is more preferable that a return passage to be returned to the pulverizer is formed.
  • Fig. 1 (b) shows an example of such a pulverized product manufacturing apparatus. As shown in the figure, in this apparatus, the centrifugal separation means 4 has a rotary valve 8 instead of the on-off valve 17, and the rotary valve force is also extended to the passage between the raw material inlet 14 and the pulverizer 3. Except for the above, it is the same as Fig. 1 (a).
  • the pulverized material manufacturing method using this apparatus can be performed in the same manner as the apparatus shown in FIG. 1 (a). However, the crushed material not collected by the filtration collecting means 6 is supplied to the pulverizer 3 again. By pulverizing, a finer pulverized product can be obtained. In the apparatus of FIG. 1 (b), the amount of pulverized material supplied from the centrifugal separator 4 into the pulverizer 3 per unit time can be adjusted by controlling the rotational speed of the rotary valve 8.
  • the pulverized product production apparatus of the present invention includes, for example, a plurality of the pulverizer and the raw material supply means, and each of the pulverizers is connected to one or a plurality of the raw material supply means, It is preferable that each pulverizer is connected to the pulverized material collecting means because the amount of raw materials that can be pulverized in a certain time increases.
  • Figure 3 shows such a pulverized product manufacturing device. An example is shown. As shown in the figure, the structure of this apparatus is almost the same as that shown in FIG. 1 (a), but includes a pulverizer 3, a raw material inlet 14 and an air inlet 1.
  • One air inlet 1 is connected to a raw material inlet of one pulverizer 3 through a passage, and one raw material inlet 14 is connected to the middle of the passage.
  • the other pulverizer 3, the raw material inlet 14 and the air inlet 1 are connected in the same manner.
  • the passages extend from the pulverized product outlets 2 of the two pulverizers 3, and these passages merge together to form one passage, which is connected to the centrifugal separation means 4, and passes through this passage.
  • the pulverized product and air can be supplied into the centrifugal separation means 4.
  • the apparatus is the same as that shown in FIG. Further, the method for producing a pulverized product using this apparatus can be performed in the same manner as in the first embodiment.
  • a pulverizer having a large screen diameter and a large screen hole diameter for example, a circle having a screen diameter of 500 mm and a hole having a hole diameter of 8 mm
  • the screen diameter, the hole diameter, and the like are not limited to these, and can be appropriately selected according to the purpose as in the other embodiments.
  • the two passages each extending from the two pulverized product outlets 2 merge in the middle to form one passage, but do not merge in the middle. It may be connected to the centrifuge 4 separately.
  • two pulverizers are connected in parallel to the centrifugal separator 4, but three or more pulverizers may be connected in parallel.
  • the pulverized product production apparatus of the present invention for example, it is preferable that one or a plurality of preliminary pulverizers are connected between the raw material supply means and the pulverizer.
  • a raw material that is too large and difficult to pulverize as it is can be pulverized to some extent by a preliminary pulverizer and further finely pulverized by a pulverizer.
  • the preliminary pulverizer has a function to generate a wind force in a gas, which is not particularly limited.
  • the raw material is preliminarily pulverized using the wind force, and the preliminary pulverized raw material is pulverized using the wind force.
  • a preliminary pulverizer supplied to the inside of the machine is preferable from the viewpoint of the production efficiency and quality of the pulverized product. That is, a pulverizer similar to the pulverizer can be used as a preliminary pulverizer.
  • FIG. 2 shows an example of such a pulverized material production apparatus. As shown in the figure, the structure of this device is almost the same as in Fig. 1 (a), but there is another similar pulverizer 3 in the middle of the passage extending from the air inlet 1 to the pulverizer 3, and a preliminary pulverizer. Located as. The preliminary pulverizer is connected to the passage through the raw material inlet and the pulverized material outlet.
  • the raw material inlet of the preliminary pulverizer is connected to the air inlet 1 side, and the pulverized material outlet is connected to the pulverizer 3 side, and the air sucked from the air inlet 1 and the raw material inlet 14 were input.
  • the raw material passes through the preliminary pulverizer and is introduced into the pulverizer. Except for these points, the apparatus of FIG. 2 is the same as the apparatus of FIG. 1 (a).
  • the method for producing a pulverized product using the apparatus of Fig. 2 may be the same as that in the first embodiment, but examples of the pulverization conditions are shown below.
  • the preliminary pulverizer and the pulverizer can be replaced by, for example, removing various screens having different hole diameters.
  • various screens having different hole diameters For example, five types of screens with an aperture diameter of 8, 5, 3, 2, and lmm may be prepared and replaced.
  • various pulverization methods can be used.
  • the preliminary pulverizer is coarsely pulverized using a screen having an aperture diameter of 8 mm, and the pulverizer is finely pulverized using the screen having a smaller aperture diameter, for example, an aperture diameter of 1 mm.
  • It can also be a powder.
  • the size of the input raw material is not particularly limited, but the size that can be easily pulverized varies greatly depending on the type (material) of the raw material. As a guideline, for example, if it is a chip shape smaller than about 100 X 100 X 10 mm square, it is easy to grind even if it is a hard raw material or a soft raw material! It can be crushed.
  • a particle having a diameter of about 100 m or about 10 m without performing classification (sieving) using a screen having a diameter of 300 mm and an opening diameter of 2 mm is also possible to obtain This is based on the same principle that it is easy to obtain a powder having a small particle size when the residence time in the screen 19 is increased in Embodiment 1, but if a pre-pulverizer is used as in this embodiment, the particle size is reduced. It becomes easier to obtain a small powder.
  • the two preliminary pulverizers are the same as described above, and the pulverizer is replaced with a pulverizer with a screen diameter of 300 mm and an aperture diameter of 1 mm, and the particle size of the fine powder produced is the same as or more than that described above. You can also.
  • the particle diameter and the like of the pulverized product can be adjusted using various screens having different pore sizes.
  • two or more pulverizers having a screen diameter of 500 mm and an aperture diameter of 8 mm can be used in parallel to obtain a large amount of coarsely pulverized product having a relatively large particle size.
  • the pulverized material recovery means filters and collects the pulverized material stored in the pulverized material storage means and means for storing the pulverized material supplied from the pulverizer. It is preferable to include the means to do.
  • the raw material supply means preferably includes a raw material storage means, and a raw material supply amount adjusting means connected to the raw material storage means and the pulverizer.
  • Fig. 4 shows an example of such a pulverized product manufacturing apparatus. As shown in the figure, the structure of this apparatus is almost the same as that shown in FIG.
  • the pulverized material storage means 10 is included, and instead of the raw material inlet 14, the raw material storage means 9 is included.
  • Mu A rotary valve 8 is connected to the lower part of the pulverized material storage means 10. By controlling the rotational speed of the rotary valve 8, the amount of pulverized material collected in the collector 5 below the pulverized material storage means 10 can be adjusted.
  • a rotary valve 8 is connected to the lower part of the raw material storage means 9, and a quantitative feeder 81 is connected to the lower part thereof, and these function as raw material supply amount adjusting means.
  • the raw material supply amount can be adjusted by controlling the number of rotations of the rotary valve 8, and it can be controlled more precisely by the quantitative feeder 81.
  • Raw material storage means 9 The lower rotary valve 8 and the metering feeder 81 are connected to the middle of the passage extending from the air inlet 1 to the pulverizer 3 via a connecting pipe 16.
  • the pulverized material storage means 10, the raw material storage means 9, and the quantitative supply device 81 are not particularly limited, and for example, a conventional pulverized material production apparatus or those used in other industrial fields may be used as appropriate.
  • the pulverized material storage means 10 may be a so-called storage silo or the like.
  • the raw material storage means 9 may be a so-called raw material silo or a raw material hopper.
  • the fixed amount feeder 81 may be, for example, a so-called screw feeder, constant feedware, or the like.
  • a turbofan type gas suction device 151 is used in place of the gas suction device 15, but the gas suction device is not limited to the turbofan type, and an arbitrary one is used as in the other embodiments. Can be used. Except for these points, the apparatus of FIG. 4 is the same as the apparatus of FIG. 1 (a).
  • the method for producing a pulverized product using this apparatus can also be carried out in the same manner as in the first embodiment.
  • the pulverized material instead of centrifuging by the centrifugal separator 4, the pulverized material is collected by storage in the pulverized material storage means 10, and the collector 5 below the pulverized material storage means 10 has a fixed time in the collector 5.
  • the amount of pulverized material collected per unit can be adjusted by means of a rotary valve 8 at the lower part of the pulverized substance storage means 10, and the amount of raw material supply per fixed time can be adjusted by means of the raw material storage means 9.
  • the point which can be adjusted by 81 differs.
  • the raw material storage means and the raw material supply amount adjusting means By using the raw material storage means and the raw material supply amount adjusting means, the supply of the raw material and the adjustment of the raw material supply amount are further facilitated, so that the manufacturing process of the pulverized product becomes simpler.
  • either one of the rotary valve 8 and the quantitative supply device 81 at the bottom of the raw material storage means 9 may be used, but using both is particularly preferable because the raw material supply amount can be controlled more precisely.
  • the process of recovering the manufactured pulverized material becomes easier. For this reason, this embodiment is particularly suitable for pulverized product production on a large scale.
  • the raw material supply means includes a plurality of the raw material storage means and the raw material supply amount adjusting means, and each of the raw material storage means has one or more raw material supply amounts.
  • An adjusting means may be connected. In this way, for example, since the amount of raw material supply per fixed time can be increased, it is possible to further improve the pulverized product production efficiency. Also, a plurality of different raw materials can be supplied at an arbitrary ratio, and a pulverized product in which those pulverized products are mixed at an arbitrary ratio can be efficiently produced.
  • Figure 7 The structure of a part of powder manufacturing apparatus is illustrated. As shown, the apparatus includes an air inlet 1 and a pulverizer 3.
  • the pulverizer 3 has a pulverized product outlet 2, and the structure of the other parts in the pulverizer 3 is as shown in FIG.
  • the air inlet 1 is connected to the raw material inlet of the pulverizer 3 through a passage, and a connecting pipe 16 is provided in the middle of the passage.
  • this apparatus includes two raw material storage means 9, a rotary valve 8 connected to the lower part of each, and a metering feeder 81 connected to the lower part thereof.
  • a passage extends from each of the quantitative feeders 81, and the two passages merge together to become one, and are further connected to the connecting pipe 16.
  • the pulverized material discharge port 2 of the pulverizer 3 is connected to the pulverized material collecting means (not shown) via another passage, and the pulverized material and Air can pass through.
  • the pulverized material collecting means is preferably the same as that shown in FIG. 4, for example, but other than this, for example, the pulverized material collecting means similar to that shown in FIGS.
  • the powder production method using this apparatus can be carried out in the same manner as described above. Either one of the rotary knob 8 and the quantitative feeder 81 in the lower part of the raw material storage means 9 may be used. However, the use of both is particularly preferable because the raw material supply amount can be controlled more precisely.
  • the pulverized material production apparatus of the present invention further includes, for example, a blower connected to the gas introduction port because the efficiency of transporting and collecting the pulverized material can be further improved.
  • Figure 5 shows an example of such a device. As shown in the figure, the structure of this device is almost the same as in Fig. 4.
  • a blower 15 'and a pressure regulating valve (pressure regulating means) 11 are connected in the middle of a passage extending from the air inlet 1 to the connecting pipe 16.
  • the pressure regulating valve 11 is connected to the side closer to the connecting pipe 16 and the crusher 3 than to the blower 15 ′.
  • a rotary valve 8 is connected to the lower part of the bag filter 6 in place of the on-off valve 17.
  • the gas suction machine uses a gas suction machine 15 instead of the turbo fan type gas suction machine 151.
  • This gas suction machine may be a turbo fan type or any other gas suction machine.
  • the device is the same as in FIG.
  • the pulverized product manufacturing apparatus of the present invention adjusts the pressure inside the pulverized product manufacturing apparatus (apparatus internal pressure), for example, as shown in FIG. It is preferable to further include means for
  • apparatus internal pressure refers to the general pressure inside the pulverized product manufacturing apparatus including the internal pressure of the screen and the external pressure of the screen.
  • the connection location of the pressure adjusting means is not particularly limited, but for example, it is preferably connected to the gas inlet or the vicinity thereof.
  • the pressure adjusting means may be shown as a pressure adjusting valve, for example, but may be replaced with other arbitrary pressure adjusting means.
  • the method for producing a pulverized product using this apparatus is also the same as that in Embodiment 4 except that air is sent to the pulverizer 3 by the blower 15 'and the pressure in the apparatus is adjusted by the pressure adjustment valve 11 as necessary. The same can be done. If the wind power of the blower 15 ′ is used supplementarily as in this embodiment, the efficiency of transporting and collecting the pulverized material can be further improved as described above. For example, the pulverized material can be transported for a longer distance.
  • the pressure regulating valve 11 is a force that can be omitted if it is not necessary. It is preferable to use the pressure regulating valve 11 because the adjustment of the wind pressure in the pulverized material producing apparatus is difficult.
  • the air volume and pressure of the air sent by the blower 15 ' are not particularly limited, but it is appropriate considering the pressure loss inside the passage, pulverized material storage means 10, filtration collection means 6, etc., the wind force generated by the pulverizer 3, etc.
  • the pressure can be adjusted with the pressure adjustment valve 11.
  • the rotary valve 8 at the lower part of the knock filter may be the on-off valve 17 as in FIGS. 1 to 4, but when using a blower, the ground pressure tends to increase depending on circumstances, etc. And a rotary valve that allows easy adjustment of the amount of air discharged is preferred.
  • the gas suction device 15 is preferably a gas suction device having a strong suction force such as a roots blower.
  • the Roots blower can be used in apparatuses other than the present embodiment, and if this is used, it is possible to obtain a very high suction pressure of, for example, about ⁇ 4000 mmAq ( ⁇ 39.2 kPa).
  • the difference between the screen internal pressure and the external pressure (assuming ⁇ 1) can be increased by increasing the suction force of the gas suction device, but ⁇ can also be increased by increasing the wind force of the blower. .
  • the pulverized material production apparatus of the present invention may further include, for example, a heat exchange connected to the gas inlet and capable of at least one of heating and cooling of the gas.
  • FIG. 6 illustrates the structure of part of such a device.
  • the pulverized material production apparatus includes a pulverizer 3, a raw material inlet 14 as a raw material supply means, an air inlet 1, and a heat exchanger 12.
  • the pulverizer 3 has a pulverized product outlet 2, and the structure of the other parts in the pulverizer 3 is as shown in FIG.
  • the air inlet 1 is connected to the raw material inlet of the pulverizer 3 through a passage, and the raw material inlet 14 and the heat exchanger 12 are connected in the middle of the passage.
  • the heat exchange ⁇ 12 is connected to the side closer to the air inlet 1 than the raw material inlet 14.
  • a heat medium 13 can flow inside the heat exchanger.
  • the pulverized material discharge port 2 of the pulverizer 3 is connected to the pulverized material recovery means (not shown) via another passage, and the pulverized material and air are urged from the pulverizer 3 into the pulverized material recovery means. Can pass through.
  • the pulverized material recovery means is the same as, for example, any one of FIGS.
  • the method for producing a pulverized product using such an apparatus can be performed in the same manner as in each of the above embodiments, except that air is heated or cooled by heat exchange, if necessary.
  • the heat exchange is not particularly limited, and known heat exchange can be appropriately connected and used. For example, so-called fin tube heat exchange is preferable.
  • the heat medium 13 is not particularly limited, and cold water or other refrigerant, hot water, steam, or other heat medium is appropriately used. be able to.
  • by cooling the air in the pulverized product manufacturing apparatus it is possible to make the raw materials difficult to pulverize easily and improve the pulverization efficiency. High raw materials and pulverized products can be easily dried, and the pulverized product production efficiency can be improved.
  • the quality of the pulverized product can be further stabilized, which is preferable.
  • the gas outlet port in the passage is connected to the gas inlet port, and the gas emitted from the gas outlet port can enter the gas inlet port again.
  • a simple circulation passage is formed.
  • Figure 8 shows an example of such a device. As shown in the figure, this apparatus has a gas outlet and a gas inlet connected to form a circulation passage through which gas can circulate.
  • a heat exchanger 12, a raw material storage means 9, a pulverizer 3, a pulverized substance storage means 10, a filtration collection means 6 and a turbofan type gas suction device 151 are provided in the passage from the upstream side to the downstream side in the gas circulation direction. They are connected in this order, and the heat medium 13 can flow inside the heat exchanger.
  • Gas can pass through the turbofan type gas suction device 151, the pulverizer 3, the pulverized material storage means 10, and the filtration collection means 6 through the passage.
  • the raw material inlet is connected to the upstream side of the passage, and the pulverized product outlet 2 is connected to the downstream side.
  • a rotary valve 8 is connected to the lower part of the raw material storage means 9, and a quantitative feeder 81 is connected to the lower part thereof, and these function as raw material supply amount adjusting means. That is, the raw material supply amount can be adjusted by controlling the rotational speed of the rotary valve 8, and it can be controlled more precisely by the quantitative feeder 81.
  • the raw material storage means 9 is connected to the passage via a rotary nozzle 8 and a constant-volume feeder 81, and supplies the raw material to the pulverizer 3 via the rotary valve 8, the quantitative feeder 81 and the passage. be able to.
  • the pulverized product and gas can be supplied from the pulverized product discharge port 2 of the pulverizer 3 into the pulverized product storage means 10 through the passage.
  • the pulverized material storage means 10 contacts the filtration collection means 6 through the passage.
  • the pulverized material and gas can be supplied to the inside of the filtering and collecting means 6 through the passage.
  • the filtration / collecting means 6 can separate the pulverized material and the gas by a filter provided therein and return only the gas into the passage.
  • rotary valves 8 are respectively provided below the pulverized material storage means 10 and the filtration collection means 6.
  • the rotary valve 8 below the pulverized material storage means 10 and the filtration / collection means 6 may be an open / close valve 17 similar to that shown in FIGS.
  • collectors 5 are respectively provided below the pulverized material storage means 10 and the filtration collection means 6, and the pulverized material in the pulverized material storage means 10 and the filtration collection means 6 is connected to the rotary valve 8 (or open / close). It can be collected via valve 17).
  • a pressure regulating valve 11 is connected to a middle part of the passage, and the pressure in the passage can be adjusted via the pressure regulating valve 11.
  • the pressure adjustment valve 11 is an automatic pressure adjustment valve, and it is preferable that the pressure in the passage is automatically adjusted by the pressure adjustment valve 11.
  • the location where the pressure regulating valve 11 is provided is not particularly limited. For example, as shown in the drawing, it is preferable to provide several locations near the gas outlet in the turbofan gas suction device 151.
  • Such a pulverized product manufacturing apparatus preferably has sufficient airtightness from the viewpoint of preventing undesirable leakage of the pulverized product and the gas circulating in the apparatus.
  • the crusher 3 preferably has sufficient airtightness due to the nature of crushing raw materials using wind power, as described above, but particularly when used in this embodiment. It is preferable that the airtightness is excellent.
  • the gas suction device in FIG. 8, a force using the turbofan type gas suction device 151 can be used as in any other embodiment.
  • other components such as the pulverized product storage means 10, the raw material storage means 9, and the quantitative feeder 81 are not particularly limited as in the other embodiments.
  • the conventional pulverized product manufacturing apparatus or the like Those used in the industrial field may be used as appropriate.
  • the pulverized material manufacturing method using such an apparatus can be carried out in the same manner as in the above embodiments except that gas is circulated inside the passage.
  • gas is circulated inside the passage.
  • the temperature of the gas may increase due to circulation inside the passage.
  • the gas is appropriately cooled by the heat exchanger 12.
  • the gas is an inert gas, for example, A pulverized product that is chemically unstable and easily changed by oxygen gas in the air can also be produced with stable quality.
  • the method for supplying the inert gas is not particularly limited.
  • a gas cylinder or a nitrogen generator may be connected to the pressure regulating valve 11 to provide an inert gas supply means.
  • the inside of the apparatus including the passage it is preferable to replace the inside of the apparatus including the passage with an inert gas in advance before the pulverized product is manufactured. If the internal pressure of the device is too high, the pressure regulating valve 11 can be opened and the inert gas can be removed as appropriate.
  • the “inert gas” in the narrow sense refers to a rare gas such as argon.
  • the term “inert gas” refers to general gases that are not limited to this, and has poor reactivity. A gas with poor reactivity.
  • the inert gas is a force that is nitrogen (N) in the figure.
  • argon may be used.
  • nitrogen is usually sufficient, and the cost point of nitrogen is preferable.
  • the inside of the apparatus an inert gas atmosphere, for example, it is possible to prevent oxidation of raw materials that are easily oxidized during pulverization and pulverized products that are easily oxidized during transportation, storage, and the like.
  • effects such as insecticide, sterilization, sterilization, etc. of the pulverized product.
  • the pulverized product is a food, a particularly excellent effect of providing a safe and high-quality pulverized food product can be provided. Demonstrate.
  • the apparatus of Fig. 8 and the method for producing a pulverized product using the apparatus are particularly preferable when a large amount of pulverized product is to be manufactured with stable quality.
  • various changes can be made to the apparatus shown in FIG.
  • a chemically unstable raw material is used, as shown in FIG. 9, even if the pressure regulating valve 11 is connected to the raw material storage means 9 and the inside of the raw material storage means 9 is also filled with an inert gas. good.
  • a blower 15 'together with a gas suction device it is possible to use.
  • the centrifuging means as described above may be used in place of the pulverized material storage means 10. Further, at least one or all of the turbofan gas suction device 151, the air blower 15 ', and the heat exchanger 12 can be omitted if unnecessary.
  • the pulverizer and the pulverized material recovery means are preferably disposed adjacent to each other.
  • the passage formed from the inside of the crusher to the inside of the pulverized material collecting means can be made extremely short.
  • liquid or paste-like pulverized material may be difficult to recover because it is difficult to transport a long passage, but if the passage is made extremely short, it will be recovered.
  • the pulverizer and the pulverized material recovery means are disposed adjacent to each other, for example, space saving and downsizing of the pulverized material manufacturing apparatus of the present invention can be achieved.
  • FIG. 42 shows an example of a pulverized product producing apparatus in which the pulverizer and the pulverized product recovery means are arranged adjacent to each other.
  • this apparatus has a pulverizer 3 and raw material storage means 10 as main components.
  • the pulverizer 3 has a pulverized product discharge port 2, and the pulverized product discharge port 2 is located at the lower part of the casing of the pulverizer 3 and faces in the horizontal direction.
  • the structure of the other parts in the crusher 3 is as shown in FIG.
  • this pulverized material production apparatus further includes a raw material inlet 14 that also serves as an air inlet (gas inlet) 1, a pulverized material collector (collector) 5, and an air outlet (gas guide).
  • the raw material inlet 14 is connected to the raw material inlet of the pulverizer 3.
  • the pulverized material outlet 2 of the pulverizer 3 is connected to the raw material storage means 10 through an extremely short passage.
  • the air outlet 7 is provided at the upper part of the raw material storage means 10, and the rotary nozzle 8 is provided at the lower part of the raw material storage means 10.
  • the collector 5 is disposed below the raw material storage means 10 and can collect pulverized material inside the raw material storage means 10 via a rotary valve 8.
  • this device may have an on-off valve 17 instead of the rotary valve 8, for example.
  • the rotary valve 8 may be used, but the on-off valve 17 is more preferable.
  • the method for producing a pulverized product using this apparatus can also be carried out according to the above-described embodiments.
  • the path from the pulverized product discharge port 2 of the pulverizer 3 to the raw material storage means 10 is extremely short, Easy to collect crushed crushed material.
  • each unit can be changed as appropriate.
  • the pulverizer is replaced with a pulverizer having an auxiliary gas inlet as shown in FIG. 34, and the auxiliary gas introduction loca also introduces air with a blower or the like, the pulverized product can be produced more effectively. it can.
  • the raw material storage means 10 may be replaced with a centrifugal separation means or a filtration collection means, or the centrifugal separation means or the raw material storage means and the filtration collection means may be used in combination as in the above embodiments. good.
  • the size of the device is not particularly limited, and may be a large device used in a factory or the like, or a portable device used in a home or the like.
  • FIGS. 28 and 29 show another example of a pulverized material production apparatus in which the pulverizer and the pulverized material recovery means are arranged adjacent to each other.
  • FIG. 28 is a longitudinal sectional view of the pulverized material producing apparatus
  • FIG. 29 (a) is a top view of the same apparatus
  • FIG. 29 (b) is a transverse sectional view at a section AA.
  • this pulverized material production apparatus mainly includes a pulverizer including a casing 18, a cylindrical screen 19, an impeller 20 and a motor unit 21, a centrifugal separator 4, and a collector 5.
  • the centrifuge 4 is preferably a cyclone dust collector (cyclone) as shown in the figure, but is not particularly limited, and may be any other appropriate centrifuge.
  • the configuration of the casing 18, the screen 19, the impeller 20 and the motor part 21 is the same as that shown in the figure except that the direction of the rotation surface of the impeller 20 is horizontal and the motor part 21 is arranged directly below the impeller 20. This is almost the same as the pulverizer shown in FIG. That is, in the pulverizer of FIGS.
  • the screen 19 has a large number of fine holes and is arranged so that a cylinder surrounds the periphery of the impeller 20.
  • the casing 18 is disposed so as to further surround the periphery of the impeller 20 and the screen 19, and the cylindrical end portion of the screen 19 is in contact with the inner wall of the casing 18.
  • the casing 18 is formed with a raw material introduction port 22 and a pulverized material discharge port 2, and the inside of the casing 18 is completely shielded from the outside air at portions other than these.
  • the raw material inlet 22 faces the upper front of the impeller 20, and the raw material of the pulverized material can be introduced into the cylinder of the screen 19 through the raw material inlet 22.
  • the pulverized product discharge port 2 faces the cylindrical side surface of the screen 19.
  • the raw material introduction port 22 and the pulverized material discharge port 2 are blocked by a screen 19, and the substance can be moved only through the fine holes provided in the screen 19.
  • the shaft portion of the impeller 20 extends through the wall of the casing 18 and is connected to the motor portion 21. At the part where the shaft part of the impeller 20 passes through the wall of the casing 18! Thus, the sealing property is maintained, and the movement of the substance inside and outside the casing 18 is allowed to pass through the penetration portion. It has a structure that does not happen.
  • the motor unit 21 is stored in the motor chamber.
  • the raw material charging chamber 35 has the same width and height as the screen 19 and the impeller 20. In the central portion of the raw material input chamber 35, the vessel wall protrudes inward to form a cylindrical raw material input port.
  • the raw material inlet 14 faces the upper front of the raw material inlet 22, and the raw material can be introduced into the raw material inlet 22 through the raw material inlet 14.
  • the raw material inlet 14 also serves as the air inlet 1, and air can be introduced into the cylinder of the screen 19 and the raw material inlet chamber 35.
  • the opening at the top of the raw material charging port 14 is closed with a removable cap 31. The cap 31 can be removed, for example, when the crusher is in operation and attached when the operation is stopped.
  • the centrifuge 4 is arranged adjacent to the pulverizer.
  • the pulverized product discharge port 2 and the centrifugal separator 4 of the pulverizer are connected through an extremely short passage, and pulverized product, air, etc. can pass through the passage.
  • the collector 5 is provided below the centrifugal separator 4, and the pulverized material can be collected inside the collector 5 through the centrifugal separator 4.
  • a pulverized material recovery chamber (one filter chamber) 36 which is an independent small chamber is provided inside the raw material charging chamber 35.
  • the upper wall of the pulverized material recovery chamber 36 is shared with the raw material input chamber 35 and faces the outside.
  • a filter 29 is provided on the upper wall of the pulverized material recovery chamber 36, and air can pass through the filter 29 between the inside of the pulverized material recovery chamber 36 and the outside.
  • a filter 30 is provided on the bottom wall of the pulverized material recovery chamber 36, and air can pass through the filter 30 between the pulverized material recovery chamber 36 and the raw material charging chamber 35.
  • the centrifuge 4 and the pulverized material recovery chamber 36 are connected via a passage, and pulverized material, air, etc. can pass through the passage.
  • the arrows in the figure indicate the direction in which the raw material, pulverized product, air, etc. move (transport) in the pulverized product manufacturing process.
  • the numbers with “0” or the unit “! 11111” indicate the dimensions of each part, but these dimensions are merely examples, and can be appropriately changed.
  • the symbol “ ⁇ ” indicates that the diameter of the circular portion is represented by a numerical value (unit: mm) before the symbol “ ⁇ ”.
  • the dimension of the side is, for example, an inner diameter of 20 mm (20 ⁇ ), but is not limited to this, and any numerical value is possible.
  • each chamber and each component such as the screen 19, the impeller 20 and the like be detachable from the viewpoint of easy cleaning and other handling of the apparatus.
  • the collector 5 is detachable so that the pulverized material can be easily recovered.
  • the structure, material, and the like of each part of the casing 18, the screen 19 and the impeller 20 are the same as those of the pulverizer shown in FIG. 10, for example, and the impeller 20 is preferably a stainless steel plate fan, for example.
  • the thickness of the screen 19 is not particularly limited, but is preferably about 0.5 to 1.5 mm, for example, in a small apparatus as shown in FIGS.
  • the motor used in the motor unit 21 is not particularly limited.
  • it is a variable speed motor, and it is preferable that the number of rotations can be changed according to the type, size, amount, etc. of the raw material.
  • the material of other parts is not particularly limited, and may be appropriately selected in consideration of strength, wear resistance, processability, corrosion resistance, and the like.
  • the outer wall of the raw material charging chamber 35, the casing 18, the outer wall of the centrifugal separator 4 are formed of transparent plastic, the flow (transportation) status, pulverization status, etc. of the raw material and the pulverized material can be observed.
  • the filters 29 and 30 are preferably cartridge filters that can be attached, detached, opened, and closed, for example.
  • the filters 29 and 30 may be slide gates that can be opened and closed, and the opening area may be variable.
  • the pulverizer in the apparatus shown in Figs. 28 and 29 has a force that is illustrated as an almost cylindrical pulverizer including the raw material charging chamber 35 and the motor chamber.
  • a semi-conical crusher having a simple inclination may be used.
  • the pulverized material production method using such a pulverized material production apparatus can be performed, for example, as follows. That is, first, while the impeller 20 is rotated by the motor unit 21, the raw material is introduced from the raw material inlet 22 to suck and pulverize the raw material using the wind force generated by the impeller 20. Can be manufactured.
  • the crushing mechanism is the same as that of the crusher shown in FIG.
  • the rotation speed of the impeller 20 (motor section 21) is not particularly limited, but in a small pulverizer having dimensions as shown in FIGS. 28 and 29, for example, 720 to 7,200 rpm, preferably 1,500 to 4, 500r.pm.
  • the pulverized material is supplied into the centrifugal separation means 4 together with air through the pulverized material discharge port 2 using the wind force.
  • the operating conditions of the centrifuge 4 are not particularly limited, but may be set with reference to, for example, the operating conditions of a cyclone dust collector in the prior art. Furthermore, for example, it is preferable to operate using wind power generated by a pulverizer because of good energy efficiency and the like. It is more preferable to operate only with the wind force generated by the pulverizer because the power means of the centrifugal separation means 4 is unnecessary and the structure of the pulverized product producing apparatus can be further simplified.
  • the pulverized material supplied to the inside of the centrifugal separator 4 falls into the collector 5 below the centrifugal separator 4 and is collected.
  • the air supplied together with the pulverized material into the centrifuge 4 moves through the passage above the centrifuge 4 to the pulverized material recovery chamber 36 and is discharged through the filter 29 and the filter 30.
  • the pulverized material mixed in a small amount in the air is collected by the filter 29 and the filter 30 and collected in the pulverized material recovery chamber 36. That is, the pulverized material recovery chamber 36 functions as a filtration and collection means. In this way, a pulverized product can be produced using the apparatus shown in FIGS.
  • the filter 29 at the top and the filter 30 at the bottom of the pulverized material collection chamber 36 may be slide gates that can be opened and closed, and the opening area can be changed. For example, if the filter 30 is closed so that air cannot pass through and the pulverized material is manufactured so that only the filter 29 can pass air, the air can be easily discharged from the filter 29 to the outside. New air is sucked into the raw material inlet 14 (air inlet 1).
  • a raw material charging adapter 32 may be inserted into the upper portion of the raw material charging port 14 as shown in FIG. 30, for example.
  • the shape of the adapter 32 is, for example, as shown in the figure, and it is preferable to select the diameter L1 of the opening to control the amount of raw material input according to the size of the raw material for which a tapered conical shape with an open end is preferred.
  • a ring is placed around the upper end of the raw material inlet 14, and an adapter 32 is inserted into the ring so that air can be sucked into the pore crusher opened in the ring. preferable.
  • the raw material is not particularly limited, and examples thereof include tea, beans, coffee beans, dried foods, fruits, vegetables, boiled foods, grains, and processed foods such as bread and Takano tofu.
  • the pulverized product to be produced is not particularly limited, and may be, for example, powder, liquid, or paste.
  • tea, beans, coffee beans, dry matter, etc. can be pulverized to produce a powder.
  • juice may be produced by pulverizing fruits, vegetables and the like.
  • the paste may be produced by crushing the boiled food by appropriately setting the structure of the apparatus and the crushing conditions. That is, for example, a liver paste is produced by pulverizing a liver stew.
  • this apparatus may be suitable for liquid food production etc. by appropriately setting the apparatus structure and pulverization conditions. For example, appropriate liquid food and solid food are mixed and pulverized appropriately. Therefore, it can be expected that a new liquid food will be produced.
  • the method for cleaning the pulverized material production apparatus shown in Figs. 28 and 29 is not particularly limited.
  • the pulverized material production apparatus can be easily cleaned simply by adding water from the raw material inlet 14 without disassembling the apparatus. it can. The introduced water is collected in the collector 5, and if the collector 5 is removed, the water is discharged from the lower part of the centrifuge 4.
  • FIG. 31 and 32 show still another example of a pulverized product producing apparatus in which the pulverizer and the pulverized product recovery means are disposed adjacent to each other.
  • FIG. 31 is a longitudinal sectional view of the pulverized material production apparatus
  • FIG. 32 (a) is a top view of the same apparatus
  • FIG. 32 (b) is a cross-sectional view taken along a section AA.
  • This apparatus is the same as the pulverized material manufacturing apparatus shown in FIGS. 28 and 29 except that the centrifuge 4 is a so-called multi-cyclone and the dimensions of each part are different.
  • the centrifuge 4 is shown as a multi-cyclone in which four cyclones are connected in parallel in FIGS.
  • the raw materials that can be pulverized by this apparatus and the pulverized product produced are the same as those of the apparatus shown in FIGS.
  • the pulverized material manufacturing method using this apparatus is also shown in FIG. And can be performed in the same way as 29 devices.
  • the number of rotations of the impeller 20 (motor part 21) is not particularly limited. However, in the pulverizer having dimensions as shown in FIGS. 31 and 32, for example, 750 to 7,200 rpm, preferably 1,500 to 4, 500r.pm.
  • Small devices such as those shown in FIGS. 28 and 29 are suitable for home use, for example, while slightly larger devices such as those shown in FIGS. 31 and 32 are for business use, more specifically, For example, it is suitable for manufacturing and selling fresh food powders and juices in stores.
  • the dimensions in the figure are merely examples, and it can be changed as appropriate as described in FIGS. 28 and 29.
  • FIG. 33 is a longitudinal sectional view showing still another example of the pulverized product producing apparatus in which the pulverizer and the pulverized product recovery means are arranged adjacent to each other.
  • this apparatus does not have the pulverized material recovery chamber 36, and instead has a fan (gas suction device) 15 and a filter 29 in contact with the upper surface of the raw material charging chamber, which are centrifuged through the passage.
  • 31 and 32 are the same as those shown in FIGS. 31 and 32 except that they are connected to the separating means 4 and the dimensions of each part are different.
  • the raw materials that can be pulverized by this apparatus and the pulverized product produced are the same as those of the apparatus shown in FIGS.
  • the pulverized material manufacturing method using this apparatus can be performed in the same manner as the apparatus shown in FIGS. 31 and 32.
  • the air separated from the pulverized material by the centrifugal separator 4 is sucked by the fan 15. And discharged to the outside through the filter 29.
  • the rotational speed of the impeller 20 (motor section 21) is not particularly limited, but in a pulverizer having dimensions as shown in FIG. 33, for example, 750 to 7,200 rpm, preferably 1,500 to 4,500 rpm. pm.
  • a device having dimensions as shown in Fig. 33 and larger than those in Figs. 31 and 32 is suitable for use in, for example, a lunchroom or a hospital.
  • the dimensions in the drawing are merely examples, and can be changed as appropriate.
  • an auxiliary gas inlet is formed at a location other than the raw material inlet in the pulverizer, so that the gas flow force S inside the pulverizer is smooth. It is preferable for reasons such as In this case, the crusher case When the interior of the casing is divided into a raw material inlet side and a pulverized material outlet side by a partition formed by a screen, the auxiliary gas inlet port is formed at a location other than the raw material inlet port in the casing. If necessary, it may be an auxiliary gas introduction port for introducing gas to the raw material introduction port side, or an auxiliary gas introduction port for introducing gas to the pulverized product discharge port side. good.
  • the pulverizer includes an outer peripheral portion (casing), a screen having fine holes, and a rotating blade (impeller), and the outer periphery of the screen and the rotating blade (impeller) is the outer peripheral portion (
  • the outer peripheral portion (casing) has a raw material inlet connected to the raw material supply means and a pulverized material discharge port connected to the pulverized material recovery means, and the outer peripheral portion (case) N)
  • the raw material inlet and the pulverized material outlet in the interior are separated by a partition formed by the screen, and the rotary blade (impeller) is arranged on the raw material inlet side.
  • the raw material is pulverized by forcibly passing through the fine pore force of the screen to produce a pulverized product
  • the pulverizer has an auxiliary gas introduction port for introducing gas to the raw material introduction port side. It may be formed at a location other than the raw material introduction port in the (casing), or an auxiliary gas introduction loca that introduces gas to the pulverized product discharge port side. It may be formed.
  • both an auxiliary gas introduction port for introducing gas to the raw material introduction port side and an auxiliary gas introduction port for introducing gas to the pulverized product discharge port side may be formed.
  • a pressurized gas introduction means is connected to the auxiliary gas introduction port for introducing gas to the raw material introduction port side or the pulverized product discharge port side, if necessary.
  • the pressurized gas introduced by the pressurized gas introducing means is not particularly limited, but may be, for example, pressurized air (seal air) or, if necessary, an inert gas.
  • FIG. 34 shows an example of a pulverizer in which an auxiliary gas inlet is formed.
  • Figure 34 (a) is vertical
  • FIG. 34 (b) is a cross-sectional view.
  • this pulverizer has the same configuration as the pulverizer of FIG. 10 except that the auxiliary gas inlets 33 and 34 are provided in the casing 18.
  • a nozzle facing the cylindrical side surface of the screen 19 is provided on the side of the outer wall of the casing 18 opposite to the pulverized material discharge port 2, and an auxiliary gas inlet 33 is formed at the tip of the nozzle.
  • the direction of the nozzle is parallel to the direction of rotation of the impeller 20, and the auxiliary gas inlet 33 is oriented in the same direction as the pulverized material outlet 2.
  • the auxiliary gas inlet 34 is formed as a hole having a small hole diameter on the side of the casing 18 facing the motor 21, and can introduce gas into the inside of the screen 19, that is, the raw material inlet side inside the casing 18.
  • the auxiliary gas introduction port 34 is connected with pressurized gas introduction means (not shown). In the figure, the number of powers formed with four auxiliary gas inlets 34 is not limited to this, and any number is possible. In FIGS.
  • the black arrow on the outside of the casing 18 indicates the direction of rotation of the impeller 20
  • the white arrow indicates the direction of gas introduction
  • the arrow on the inside of the casing 18 indicates the inside of the casing 18. Represents the wind direction.
  • the raw material pulverization using the pulverizers of Figs. 34 (a) and (b) can be performed, for example, as follows. As shown in the figure, when the raw material is introduced from the raw material introduction port 22 while the impeller 20 is rotated toward the outlet side of the pulverized product discharge port 2, the gas is introduced from the raw material introduction port 22 together with the raw material, and the gas Is also introduced from the auxiliary gas inlet 33. Further, when the pressurized gas introduction means connected to the auxiliary gas inlet 34 is operated, the pressurized gas is introduced from the auxiliary gas inlet 34. Then, the gas introduced from the raw material inlet 22 and the auxiliary gas inlet 34 also causes the cylindrical internal force of the screen 19 to flow outward.
  • the raw material is pulverized by, for example, forced passage through the screen 19 and becomes a pulverized product. Further, the gas introduced from the raw material inlet 22 and the auxiliary gas inlets 33 and 34 flows along the rotation direction of the impeller 20 and is discharged from the pulverized material outlet 2 together with the pulverized material.
  • the auxiliary gas inlet 33 may be a pulverizer adjacent to the pulverized product outlet 2 as shown in the cross-sectional view 34 (c).
  • the crusher in Fig. 34 (c) (the vertical cross section is omitted) is the same as the crusher in Fig. 34 (a) and (b) except that the auxiliary gas inlet 33 is adjacent to the pulverized product outlet 2 ⁇ . It is. Further, the raw material pulverization using this pulverizer can be performed in the same manner as the pulverizers shown in FIGS. 34 (a) and (b).
  • the pulverizer used in the pulverized material production apparatus of the present invention pulverizes the raw material by forcibly passing the fine holes of the screen using wind power to produce the pulverized material.
  • the wind generated by the impeller 20 causes the pressure inside the cylinder of the screen 19 (ie, the raw material inlet side) to be higher than that of the outside (ie, the pulverized product outlet side). .
  • the raw material can be forced to pass through the fine pores of the screen and pulverized.
  • the amount of raw material input is set to an appropriate ratio between the amount of pulverized material transported and the gas flow rate at the pulverized material outlet, and the gas flow rate (air volume required for transportation) ) Must be kept to a certain extent.
  • This upper limit of the raw material input amount is the upper limit of the raw material processing amount of the pulverizer.
  • the auxiliary gas introduction port 33 for introducing the gas to the pulverized product discharge port side of the pulverizer when the auxiliary gas introduction port 33 for introducing the gas to the pulverized product discharge port side of the pulverizer is formed, the gas is introduced therefrom, and the pulverized product discharge port side thereof Improves the ability to transport crushed material. As a result, the amount of raw material that can be processed by the pulverizer can be increased, and the pulverized product producing apparatus can be stably operated.
  • the pressure outside the screen of the pulverizer is lower than the pressure at the auxiliary gas introduction port 33.
  • a pressurized gas introducing means may be separately connected to the auxiliary gas introducing port 33 to thereby introduce the pressurized gas.
  • the amount of gas introduced from the auxiliary gas inlet 33 is not particularly limited.
  • the gas pressure force at the auxiliary gas inlet 33 It should be the same! ,.
  • auxiliary gas inlet 34 may be formed on the side of the casing 18 facing the motor 21, and pressurized gas may be introduced therefrom.
  • the amount of the pressurized gas introduced from the auxiliary gas inlet 34 is not particularly limited and varies depending on various conditions.
  • the amount of the pressurized gas introduced from the auxiliary gas inlet 34 is, for example, such that the air volume of the pressurized gas is about 10% of the internal air volume of the screen 19.
  • the gap is preferably as narrow as possible in order to prevent the flow of gas blown from the gap (clearance) between the outer periphery of the main plate of the impeller 20 and the inner wall of the screen 19 from interfering with the pulverized material transport.
  • auxiliary gas inlet 34 may be, for example, a pulverizer having a structure shown in the sectional view of FIG. 34 (d) instead of the sectional view of FIG. 34 (a).
  • Fig. 34 (d) shows that the auxiliary gas inlet 34 is provided in the shaft seal part in the gap between the casing 18 and the motor part 21 and is oriented in the direction perpendicular to the rotation axis of the impeller 20 except that ).
  • the pressurized gas introduction means connected to the auxiliary gas introduction port for introducing the gas to the raw material introduction port side or the pulverized product discharge port side is not particularly limited.
  • a roots blower or the like may be used.
  • the air in the compressed air source may be appropriately decompressed as necessary and used as seal air (pressurized air).
  • the power of the pressurized gas introducing means can be, for example, the rotational force of the shaft in the impeller of the pulverizer.
  • FIG. 35 the rotation axis of the impeller is arranged in parallel to the direction in which gravity acts.
  • a pulverizer that is, a vertical pulverizer, in which the auxiliary gas inlet is formed.
  • FIG. 35 (a) is a longitudinal sectional view
  • FIG. 35 (b) is a transverse sectional view.
  • this pulverizer has the same configuration as the pulverizer of FIG. 24 except that the auxiliary gas inlets 33 and 34 are provided in the casing 18.
  • FIG. 35 does not show the air inlet (gas inlet) as shown in FIG. 24, but it may or may not be the same as FIG.
  • a nozzle facing the cylindrical side surface of the screen 19 is provided at a position adjacent to the pulverized product discharge port 2 on the side wall of the casing 18 as shown in the figure, and an auxiliary gas introduction port 33 is formed at the tip of the nozzle.
  • the direction of the nozzle is parallel to the rotation direction of the impeller 20, and the auxiliary gas inlet 33 is oriented in the same direction as the pulverized material outlet 2.
  • the auxiliary gas inlet 34 is formed as a hole having a small hole diameter on the side of the casing 18 facing the motor 21, and gas can be introduced into the screen 19, that is, the raw material inlet side inside the casing 18.
  • the auxiliary gas introduction port 34 is connected to pressurized gas introduction means (not shown).
  • the number of powers formed by the four auxiliary gas inlets 34 is not limited to this, and any number is possible.
  • the black arrow on the outside of the casing 18 indicates the rotation direction of the impeller 20
  • the white arrow indicates the direction of introduction of the gas
  • the arrow on the inside of the casing 18 indicates the casing 18 Represents the internal wind direction.
  • the pulverizer shown in FIG. 35 may be, for example, a pulverizer having a structure shown in the sectional view of FIG. 35 (c) instead of the sectional view of FIG. 35 (a).
  • FIG. 35 may be, for example, a pulverizer having a structure shown in the sectional view of FIG. 35 (c) instead of the sectional view of FIG. 35 (a).
  • the auxiliary gas introduction port 34 is provided in the shaft seal part in the gap between the casing 18 and the motor part 21 and is directed in the direction perpendicular to the rotation axis of the impeller 20 except that FIG. Same as (a).
  • the raw material pulverization using the apparatus of FIG. 35 can be performed in the same manner as the apparatus of FIG. 34, for example.
  • FIG. 36 shows another example of a pulverizer in which the auxiliary gas inlet is formed.
  • Fig. 36 (a) is a longitudinal sectional view
  • FIG. 36 (b) is a transverse sectional view.
  • the direction of the nozzle in which the auxiliary gas inlet 33 is formed is perpendicular to the rotation direction of the impeller 20, and the direction of the auxiliary gas inlet 33 is the same as that of the raw material inlet 22.
  • the casing 18 body is separated by a slit.
  • the gas introduced from the auxiliary gas inlet 33 can be introduced into the casing 18 main body through the slit.
  • the raw material pulverization using this pulverizer can be performed, for example, in the same manner as the pulverizer of FIG.
  • FIG. 37 shows another example of a vertical crusher in which the auxiliary gas inlet is formed.
  • FIG. 37 (a) is a longitudinal sectional view
  • FIG. 37 (b) is a transverse sectional view.
  • the direction of the nozzle in which the auxiliary gas introduction port 33 is formed is perpendicular to the rotation direction of the impeller 20, and the direction of the auxiliary gas introduction port 33 is the same as that of the raw material introduction port 22.
  • the casing 18 is separated from the main body by a slit.
  • the gas introduced from the auxiliary gas inlet 33 can be introduced into the casing 18 main body through the slit.
  • the raw material pulverization using this pulverizer can be performed, for example, in the same manner as the pulverizer of FIG.
  • the slit in the pulverizer of Fig. 36 or 37 may be, for example, a hole having a shape such as a round hole instead of the slit.
  • the nozzle may be omitted, and only the slit may be provided in the casing 18 main body wall, and this slit may be used as the auxiliary gas inlet 33.
  • the gap width between the impeller 20 and the casing 18 is increased at a position near the pulverized product discharge port, for example, near the pulverized product discharge port shown in Figs.
  • the adhesion and accumulation of pulverized material can be prevented or reduced, and the flow force of the pulverized material is smooth and preferable.
  • the gas flow rate tends to increase as the position is closer to the pulverized product discharge port due to the merging of the gas introduced from the auxiliary gas inlet 33 and the gas passed through the screen 19.
  • FIG. 38 shows an example of a pulverized product production apparatus using the pulverizer of FIG.
  • this apparatus is configured such that the pulverizer 3 is the pulverizer shown in FIG. 34, the pressure adjusting valve 11 is connected to the auxiliary gas inlet 33 of the pulverizer 3, and the auxiliary gas inlet
  • the apparatus of FIG. 1 (a) is the same as the apparatus of FIG. 1 (a) except that a blower 15 'as a seal air introduction means (pressurized gas introduction means) is connected to the seal air introduction port (34).
  • the pressure regulating valve 11 may optionally be connected to the air suction port 1 through a passage as shown by a dotted line in the figure.
  • the method for producing a pulverized product using this apparatus is the same as the apparatus shown in FIG. 1A except that, for example, the seal air is introduced from the seal air introduction port 34 by the blower 15 ′ and the pressure is adjusted by the pressure adjustment valve 11. Can be done.
  • the amount of gas (air) introduced from the auxiliary gas inlet 33 is not particularly limited.
  • the pressure is set so that the gas pressure at the auxiliary gas inlet 33 is the same as the gas pressure near the fine holes of the screen.
  • the adjustment valve 11 may be used for adjustment.
  • the transport amount of the pulverized product and the gas flow rate at the pulverized product discharge port side are in a ratio suitable for the transportation of the powdered material and necessary for the transport of the pulverized product. It is preferable that a high gas flow rate (flow rate) is obtained.
  • the ratio of the amount of crushed material transported to the gas flow rate at the pulverized material outlet that is, the value obtained by dividing the amount of pulverized material transported per unit time (kgZsec) by the gas flow rate per unit time (kgZsec) is not particularly limited. Is, for example, 0.5 to 30, preferably 1 to 20, and more preferably 2 to 15.
  • the setting of the pressure and the air volume of each part of the apparatus is not particularly limited, but for example, as follows. That is, first, in the raw material processing amount limit state in a state in which no gas is introduced from the auxiliary gas inlets 33 and 34 (a state in which the pulverized material cannot be transported if the raw material input amount is further increased), Pressure is P (mmAq) higher than external pressure
  • the screen pressure loss (necessary crushing pressure for screen) ⁇ ⁇ ⁇ ⁇ ⁇ ⁇ (mmAq) is expressed by the following formula (3).
  • the pulverized material production apparatus of the present invention includes, for example, a means for measuring the pressure inside the screen of the pulverizer (screen internal pressure measuring means), a means for measuring the pressure outside the screen of the pulverizer (screen external pressure measurement) And at least one means selected from the group consisting of means for measuring the screen pressure loss of the pulverizer (screen pressure loss measuring means). These measuring means are not particularly limited, and for example, a general pressure gauge or the like may be used as appropriate. Further, the pulverized material production apparatus of the present invention is, for example, at least one selected from a group force which is a screen internal pressure of the pulverizer, an external pressure of the screen of the pulverizer, and a screen pressure loss force of the pulverizer.
  • a means for adjusting is not particularly limited, but other means such as a pressure adjusting valve that is preferably adjusted by the amount of raw material input may be used. It is more preferable to adjust the screen pressure loss among the screen internal pressure, the screen external pressure, and the screen pressure loss.
  • the screen pressure loss ⁇ varies depending on, for example, the amount of raw material input (processing amount). This
  • the ⁇ ⁇ value is a fixed and appropriate ⁇ ⁇ value
  • the ⁇ value does not decrease too much. ⁇ due to too much raw material input
  • the screen pressure loss ⁇ It is possible to perform stable and smooth pulverization by adjusting and maintaining the above.
  • the screen internal pressure, the screen external pressure, and the screen pressure loss it is particularly preferable to appropriately adjust and maintain the screen pressure loss. Also, for example, if ⁇
  • processing amount it is easy to increase the amount of raw material input (processing amount). That is, for example, if ⁇ is increased by increasing the suction power of the gas suction device 15 regardless of the increase in the amount of raw material input.
  • the upper limit of the raw material throughput is greatly reduced, which is preferable.
  • the difference P between the screen external pressure and the external pressure can be appropriately adjusted by, for example, the pressure adjustment valve 11 and the gas suction device 15.
  • the pulverized material transporting force can be carried out smoothly, and stable operation of the pulverized material production apparatus can be realized immediately.
  • the pressure adjustment valve 11 may be throttled to reduce the amount of gas introduced from the auxiliary gas inlet 33.
  • the pressure regulating valve 11 has the required size P
  • the size of the pressure regulating valve 11 is not particularly limited, but it is preferable that the pressure regulating valve 11 is appropriately selected in consideration of the performance as described above.
  • the pressure at the inlet 34 of the seal air inlet is P or higher.
  • the suction pressure in the gas suction machine 15 is a value less than-(one P + P)
  • the air volume introduced from the air inlet 1 is F (MVmin), and auxiliary gas is introduced.
  • F (M 3 Zmin) is the air volume introduced from port 33, and the seal air inlet (auxiliary gas guide) Inlet) F (M 3 Zmin) is the air volume introduced from 34, and the air volume of the air leaking into the system is
  • FIG. 39 shows another example of a pulverized material production apparatus using the pulverizer of FIG.
  • this apparatus includes a crusher 3 as shown in FIG. 34, and a rotary valve 8 instead of the raw material storage means 9 and a rotary valve 8, a metering feeder 81 and a connecting pipe 16 below the raw material storage means 9.
  • the pressure regulating valve 11 is connected to the auxiliary gas inlet 33 of the pulverizer 3, and the passage extending from the air inlet 1 to the pulverizer 3 is just before the raw material inlet 14.
  • Blower 15 and pressure adjustment valve 11 are connected!
  • the device is the same as that shown in Fig. 1 (a) except that it is beaten.
  • the passage extending from the air inlet 1 to the pulverizer 3 may optionally be further branched immediately before the raw material inlet 14 and connected to a blower 15 ′ as a sealing air introduction means. In this way, if the passage force also takes sealing air, it is preferable to save the power energy of the blower 15 ′ as a sealing air introduction means.
  • the pulverized material manufacturing method using this apparatus is performed in the same manner as the apparatus of FIG. 5 except that the seal air is introduced from the seal air introduction port 34 by the blower 15 ′ and the pressure is regulated by the pressure regulating valve 11. Can do.
  • the setting of the pressure in each part of the apparatus is not particularly limited.
  • the screen pressure loss of the crusher 3 (screen crushing pressure) is set to ⁇ ⁇ (mmA
  • the pressure loss in the pulverized material storage means 10 is ⁇ ⁇ (mmAq)
  • the pressure loss between storage means 10 and filtration collection means 6 is ⁇ P (mmAq), and filtration collection.
  • the pressure loss in means 6 is ⁇ ⁇ (mmAq), and the filtration and collection means 6 to the gas suction machine 15
  • the discharge pressure P of the blower 15 ′ is as shown in the following formula (4). Also, the suction of the gas suction machine 15 The pressure is as shown in the following formula (5).
  • P is 2350mmAq (23.OkPa) or more, P is 120mmAq (—
  • the outlet pressure of the blower 15 ' is higher than the screen external pressure in the pulverizer.
  • the blower 15 ′ outlet pressure may be 3200 mmAq (31.4 kPa), and may be the screen external pressure S3100 mmAq (30.4 kPa) in the powder frame machine.
  • the screen pressure loss ⁇ of the pulverizer 3 is 380 mmAq (3.73 kPa).
  • the amount of gas (air) introduced from the auxiliary gas inlet 33 is not particularly limited. For example, it may be adjusted by the pressure regulating valve 11 as in the apparatus of Fig. 38 described above. Here, the performance and size of the pressure regulating valve 11 and the pressure at the inlet of the seal air inlet 34 are the same as those in the apparatus of FIG. Screen pressure loss ⁇ can also be adjusted in the same way as the device in Fig. 38.
  • the screen pressure loss ⁇ is, for example, the input amount of raw material (processing amount).
  • the gas suction device 15 can be appropriately adjusted.
  • the difference between the screen external pressure and the external pressure can also be adjusted in the same manner as in the apparatus of FIG. 38.
  • the apparatus of FIG. 39 for example, not only the pressure adjustment valve 11 and the gas suction device 15, but also the blower 15 ' It is also possible to adjust appropriately.
  • the setting of the air volume is not particularly limited, but may be the same as that of the apparatus of Fig. 38, for example. That is, the air volume introduced from the air inlet 1 is F (M 3 Zmin), and the auxiliary gas inlet 33 F (MVmin), the air volume of the air introduced from the seal air inlet (auxiliary gas inlet) 34
  • F (M 3 Zmin) is the air volume introduced from the air, and F (M 3 /
  • the suction air volume of the gas suction machine 15 should be at least F + F + F + F (M 3 Zmin).
  • FIG. 40 shows an example of a pulverized product production apparatus using the pulverizer (vertical pulverizer) of FIG.
  • this apparatus is configured such that the pulverizer 3 is the pulverizer shown in FIG. 35, the pressure adjusting valve 11 is connected to the auxiliary gas inlet 33 of the pulverizer 3, and the auxiliary gas inlet (
  • the air blower 15 'and pressure regulating valve 11 as seal air introduction means (pressurized gas introduction means) are connected to the seal air inlet 34), and the raw material storage means 9, rotary, instead of the raw material inlet 14
  • a valve 8 a quantitative feeder 81 and a connecting pipe (not shown)
  • the pressure regulating valve 11 of the auxiliary gas introduction port 33 may be connected to a blower 15 ′ as seal air introduction means, for example, as indicated by a dotted line in the figure.
  • the pulverized material manufacturing method using this device is the same as the device shown in FIGS. 1 and 4 except that the air is introduced from the seal air introduction port 34 by the blower 15 and the pressure is adjusted by the pressure regulating valve 11. Can be done.
  • the setting of the gas introduction amount, the pressure of each part of the apparatus, and the air volume is not particularly limited, but for example, it is the same as the apparatus of FIG. 38 or 39.
  • FIG. 41 shows still another example of a pulverized product production apparatus using the pulverizer of FIG.
  • this apparatus is configured such that the pulverizer 3 is the pulverizer shown in FIG. 34, the pressure regulating valve 11 is connected to the auxiliary gas inlet 33 of the pulverizer 3, and the auxiliary gas is introduced. Except that a turbo type gas suction device 151 and a pressure regulating valve 11 are connected to the port 34 as a pressurized gas introducing means, it is the same as the apparatus of FIG.
  • the circulation path of the inert gas branches near the outlet of the heat exchanger 12 and is connected to the pressure regulating valve 11 of the auxiliary gas inlet 33 and the turbo type gas suction machine 151, respectively.
  • the pulverized product manufacturing method using this apparatus is, for example, the introduction of an inert gas (pressurized gas) pressurized from the auxiliary gas inlet 34 by the blower 15 ′ and the pressure adjustment by the pressure regulating valve 11. Similar to the device in Figure 8, Can be.
  • the settings of the gas introduction amount, the pressure of each part of the device, and the air volume are not particularly limited, but are the same as, for example, the device of FIG. 38 or 39.
  • each component and arrangement of the apparatus shown in Figs. 38 to 41 may be appropriately changed according to, for example, each of the above embodiments.
  • the method for producing a pulverized product using these apparatuses is not limited to the above-described method, and can be appropriately changed.
  • the pulverized material production apparatus shown in each of the embodiments described above was assembled, and various raw materials were pulverized.
  • the pulverizer those having the structure shown in FIG. 10 were used.
  • FV-21 (trade name) manufactured by Okazaki Seisakusho was used as the Pitot tube flow meter 26. Further, the suction pressure (static pressure) of the gas suction device measured by this measurement was ⁇ 200 mmAq (—1.96 kPa). A cylindrical screen was used as the screen in the pulverizer. A total of five types of screens with a hole diameter of 8, 5, 3, 2 and lmm were prepared and used as appropriate. In these five types of screens, the length (cylinder height), diameter and screen effective part length (dimension in the cylinder height direction at the screen effective part) are all constant values. Specifically, the length is The diameter was 200 mm, the diameter was 300 mm, and the effective screen length was 145 mm.
  • the holes in the screen were all round (circular), and the hole diameter was the same between the inside and outside of the screen.
  • the material of the screen was stainless steel and the thickness was 2 mm. Moreover, the screen opening ratios were all over 20%.
  • the impeller was used in accordance with the screen so that the gap width with the inner wall of the screen was 8 mm. Specifically, the structure shown in FIG. A main plate, no side plate, straight plate type, and 6 impellers were used. However, FIG. 27 is a schematic diagram and does not strictly show the structure of the impeller used in Examples 1-18. In this impeller, the diameter 2R was 284 mm, and the wing width (dimension in the direction perpendicular to the surface of the main plate at the tip of the wing) h was 140 mm.
  • the material of the impeller was carbon steel. Furthermore, the inner diameter of the casing (the inner diameter in the direction perpendicular to the rotation direction of the impeller) in the pulverizer was 190 mm at the minimum and 270 mm at the maximum.
  • the particle size and particle size distribution of the pulverized product were measured using a trade name HORIBA LA-910 manufactured by Horiba, Ltd.
  • a pulverized material production apparatus having the structure shown in Fig. 1 (a) was assembled.
  • a centrifugal separation means 4 a cyclone dust collector (inner diameter 450 mm, straight cylinder length 450 mm, conical length 900 mm) is used, and as the filtration collection means 6, a nod filter (made by Nippon Doraldson Co., Ltd., trade name Ruma) is used.
  • Star, pore diameter 1 m) was used.
  • a screen with a diameter of 300 mm and an aperture diameter of 8 mm and an impeller were attached to this, the impeller was rotated at a rotational speed of 2000 rpm, and a cyclone dust collector and a gas suction device were operated.
  • Bincho charcoal powder with a very small particle size could be produced with a very high yield of 98%.
  • the unrecovered 0.2 kg is considered to be due to adhesion inside the device, or the amount that passed through the stitches of the nozzle filter (pore size 1 ⁇ m).
  • this example was performed in an environment at room temperature of 28 ° C.
  • Bincho charcoal 500 kgZhr, which was calculated as the effective area inside the screen in the crusher (in the following examples) Converted per lm 2 , it was 3703 kgZhr'm 2 . Similar results were obtained when charcoal (about 5 X 5 X 5 cm) derived from ogarite (a general term for solid fuel compressed from sawdust) was used instead of Bincho charcoal.
  • a pulverized material production apparatus having the structure shown in Fig. 2 was assembled. Centrifugal means 4 and filter As the overcollecting means 6, the same cyclone dust collector and bag filter as in Example 1 were used. Both the pulverizer and preliminary pulverizer were equipped with a screen with a diameter of 300 mm and a hole diameter of 2 mm, and an impeller. Then, each impeller was rotated at a rotation speed of 20 OOr.pm, and a cyclone dust collector and a gas suction device were operated. Then, when 10 kg of Bincho charcoal with a size of about 5 X 5 X 3 cm was gradually added manually from the raw material inlet 14, the particle size was about 1 ⁇ : LO / zm.
  • Bincho charcoal powder having a smaller particle size than that of Example 1 was obtained with a total yield of almost 100%.
  • This example was performed in an environment with a room temperature of 28 ° C. When this operation was continued for 3 minutes and the raw material processing amount per hour was calculated, the processing amount of Bincho charcoal was 200 kgZhr, and this was converted to 730 kg / hr per lm 2 area inside the screen in the crusher. hr ⁇ m 2 .
  • Example 2 An apparatus similar to Example 2 was assembled and operated under the same conditions as in Example 2 except that the screen opening diameter force was 8 mm for the preliminary pulverizer and 3 mm for the pulverizer! It was. Then, when the ogarite-derived charcoal, about 5 X 5 X 5 cm in size, was manually added gradually from the raw material inlet 14, the fine powder was collected almost quantitatively in the collector 5. It was. The amount collected was 7.8 kg in the collector 5 at the bottom of the cyclone dust collector 4 and 2.1 kg in the collector 5 at the bottom of the Nog filter 6.
  • the screen remains the cylinder diameter of 300 mm and the aperture diameter is With the same conditions as in Example 2 except that the room temperature is 28 ° C (impeller rotation speed 2000 rpm), the length is 50 mm, the width is 10 mm, and the thickness is about 5 mm square.
  • bamboo chips cut to a size of 5 kg (water content 18 wt%) were pulverized. As a result, a fine powder having a particle diameter of about 1 to 300 / ⁇ ⁇ , 3.1 kg force, and a moisture content of 7 wt% was obtained in an almost completely dry state.
  • cedar was made into chips and further pulverized.
  • cedar was first made into chips with a length of 20 mm, a diameter of 10 mm, and a thickness of about 2 mm square (water content 13 wt%).
  • the same pulverized material production apparatus as in Example 1 was operated except that the screen diameter was 300 mm and the aperture diameter was 5 mm (impeller one rotation speed 2000 rpm), and the cedar chips were manually charged from the raw material inlet 14. .
  • a fine powder water content 8 wt%) with a particle size of about 30 to: LOOO / zm was obtained in the collector 5.
  • pulverization was performed using two preliminary pulverizers (that is, three pulverizers connected in series). That is, first, a pulverized material production apparatus similar to Example 2 was assembled except that three pulverizers were connected in series and the screen was replaced. The cylindrical diameter of the screen was 300 mm in all cases, and the opening diameter was 5 mm, 3 mm, and lmm in order of the side force close to the raw material inlet 14.
  • plastic which was difficult to grind by the prior art, more specifically, 10 kg of polylactic acid (pellet shape) was ground. Grinding was carried out under the same conditions as in Example 1 except that a screen with a diameter of 300 mm and an aperture diameter of 2 mm was used (impeller one rotation speed 2000 rpm) except that the room temperature was 26 ° C. .
  • a screen with a diameter of 300 mm and an aperture diameter of 2 mm was used (impeller one rotation speed 2000 rpm) except that the room temperature was 26 ° C.
  • the room temperature was 26 ° C.
  • the processing amount of polylactic acid was 12 kg / hr, which was 88 kg / hr'm 2 when converted to the area lm 2 inside the screen in the crusher. .
  • Example 11 only one pulverizer was used, but in this example, polylactic acid was pulverized using a preliminary pulverizer (two pulverizers connected in series). That is, when the pore diameter of the screen in the pulverizer was set to 1 mm, 10 kg of polylactic acid was pulverized under the same conditions using the same pulverized product production apparatus as in Example 2, and the particle size was about 50 to 300 ⁇ m. It was possible to obtain a fine powder instantly. This operation was continued for 1 hour and 15 minutes to treat all 10 kg of polylactic acid. When the raw material throughput per hour was calculated, the polylactic acid throughput was 8 kgZhr, which was 29 kg / hr-m 2 when converted to the area lm 2 inside the screen in the crusher.
  • elastomers belonging to the most difficult class of synthetic polymers were pulverized.
  • the elastomer specifically, 10 kg of SIS type thermoplastic rubber (hydrogenated type, Kuraray Co., Ltd., trade name: Septon series) having a glass transition temperature of around ⁇ 50 ° C. was used.
  • the pulverized product production apparatus and pulverization conditions were the same as those in Example 13.
  • a fine powder having a particle size of 100 to 300 / ⁇ ⁇ was obtained almost simultaneously with the addition.
  • This operation was continued for 6 minutes to treat all the 10 kg of thermoplastic rubber.
  • the thermoplastic rubber throughput was 100 kg / hr. Ri, and this is converted into the area lm 2 per screen inside the crusher, 730kg / h ⁇ ⁇ ⁇ ( ? Atsu 7 this.
  • thermoplastic rubber (cylindrical white porous elastic body 7 mm in diameter and 40 mm in length) manufactured by Asahi Kasei Co., Ltd. under the same conditions as in Example 14 except that the room temperature was 27 ° C. Was ground for 25 seconds. As a result, an inhomogeneous granular state of 300 to 500 / ⁇ ⁇ was obtained.
  • the thermoplastic rubber throughput was 150 kgZhr, which was 1095 kg / hr-m 2 when converted to the area lm 2 inside the screen in the crusher. .
  • gelatin the most difficult powder frame including synthetic polymers and natural polymers
  • gelatin granules with a particle size of about 500 m were used as the raw material input port under the same conditions as in Example 1 except that the screen diameter was 300 mm, the screen aperture diameter was 3 mm, the impeller rotation speed was 2000 rpm, and the room temperature was 15 ° C.
  • a fine powder with a particle size of about 50 to 300 m was obtained instantly.
  • This operation was continued for 55 seconds to treat 3 kg of gelatin.
  • the gelatin throughput could be up to 200 kg / hr.
  • Example 1 the same pulverized product production apparatus as in Example 1 was assembled and operated under the same conditions except that the room temperature was 10 ° C (screen diameter 300 mm, screen aperture diameter 8 mm, impeller rotation speed 2000 r. pm).
  • the room temperature was 10 ° C (screen diameter 300 mm, screen aperture diameter 8 mm, impeller rotation speed 2000 r. pm).
  • the tanned skin was cut into a size of about lcm square, it was grasped with both hands and put into the raw material input port 14, and instantly turned into a 5-6 times volume of cotton-like material. Discharged inside.
  • the obtained cotton-like substance was an aggregate of fine fibers having a diameter of about 0.1 mm and a length of 2 mm or less. That is, the same phenomenon as in the powder frame of polypropylene fiber in Example 13 was also observed in the tanning of the tanned leather.
  • Example 18 [0184] First, a pulverized product producing apparatus was assembled and operated under the same conditions as in Example 1 except that the screen diameter was 300 mm, the screen aperture diameter was 5 mm, the impeller rotation speed was 2800 rpm, and the room temperature was 30 ° C. Next, we prepared 200 translucent polypropylene stationery binders (0, 21mm thick, A3 double-folded, approximately 25. lg in weight). It was pulverized in order by sucking one by one close to the inlet. The time required for grinding was approximately 15 minutes. The obtained pulverized product was recovered in about 99% in a heterogeneous shape with a diameter of about 2 to 0.3 mm. The raw material treatment amount in this example was 20 kgZhr, which was 146 kg / hr′m 2 when converted to the area lm 2 inside the screen in the crusher.
  • Examples 19 to 21 below show the effect of the screen pore shape on the particle size of the pulverized product and the raw material throughput. Specifically, in Examples 1 to 18, the hole shape is all round, but in Examples 19 to 21, the hole shape is shown as a slit shape and a mortar shape.
  • Examples 19 to 21 were all pulverized with a screen internal air volume of 47M 3 Zmin in a pulverizer.
  • the air flow measurement conditions were the same as in Examples 1 to 18, and the static pressure measured by this measurement was 220 mmAq (2.16 kPa).
  • the same gas suction machine as in Examples 1 to 18 was used.
  • the screen in the pulverizer was a cylindrical screen. Screen length (cylindrical height) is fixed at 200 mm, diameter is 400 mm, and four types of screens are prepared with round holes, rectangular slits, parallel slits, and mortars, respectively. Used.
  • the screen thickness was lmm for round holes and 1.5mm for the others.
  • a round hole is a hole with a diameter of 1 mm (opening diameter) opened by punching, and a rectangular slit and a parallel slit were opened by a laser (electron beam) processing method.
  • Met. A mortar-shaped hole is a circular hole opened by a laser (electron beam) processing method.
  • the hole diameter is 0.6 mm on the inside of the screen, that is, on one side of the impeller, and 0.6 mm on the outside of the screen, that is, on the casing surface side. It was 8mm.
  • the material of the screen was stainless steel.
  • the impeller has a gap width of 10m with the inner wall of the screen. An impeller having a diameter of 380 mm was used so as to be m.
  • FIG. 27 is a schematic diagram, and does not strictly show the structure of the infller used in Examples 19-21.
  • the diameter 2R was 380 mm
  • the wing width dimension in the direction perpendicular to the surface of the main plate at the tip of the wing
  • the material of the impeller was carbon steel.
  • the casing inner diameter (inner diameter in the direction perpendicular to the rotation direction of the impeller) in the pulverizer was 280 mm at the minimum and 350 mm at the maximum.
  • the particle size and particle size distribution of the pulverized product were measured using a trade name HORIBA LA-910 manufactured by Horiba, Ltd.
  • Example 2 the same pulverized material production apparatus as in Example 1 was assembled except for the pulverizer.
  • the conditions of the screen, the impeller and the casing in the pulverizer used in this example are as described above.
  • this pulverized product manufacturing apparatus a case where a screen having a round hole (aperture ratio 23%) is used and a case where a screen having a right angle slit (aperture ratio 19%) is used are used.
  • the processing amount of the pulverized product (raw material) and the particle size of the pulverized product were compared.
  • the material to be ground was wood powder (particle size: about 500 to 1000 m, moisture content: 30%), the impeller rotation speed was 2800 rpm, and other conditions were the same as in Example 1.
  • a raw material processing amount 150 kg / hr (screen area lm 2 per 70 lkgZhr ⁇ m 2), grind the raw material (wood powder) per 1 kg, of less than the particle diameter m 120g, 150-350 / ⁇ ⁇ after power ⁇ 680g, 350 / zm power over 200g was obtained. That is, fine powder could be obtained with good production efficiency.
  • feedstock throughput is 560KgZhr (screen area lm 2 per 2617kgZhr • m 2), grind the raw material (wood powder) per 1 kg, the particle size m Less than 320 g, 150-350 111 after moss 5158, 350 g over 165 g force was obtained. That is, a finer powder was obtained with higher production efficiency than in the case of round holes.
  • the particle shapes were compared, in the case of round holes, all of the particles were almost spherical, whereas in the case of the slit type, slightly longer fibrous particles were observed.
  • Example 20 [0189] The same amount of the same wood flour was pulverized under the same conditions as in Example 19 except that the screen having the parallel slit (opening ratio: 19%) was used. As a result, the raw material processing amount are 700KgZhr (Stary over down area lm 2 per 3271kg / hr'm 2), grind the raw material (wood powder) per 1 kg, 670 g, UNDER particle child size 350 mu m, 330 g of 350 ⁇ m or more was obtained. The particle shape was mostly fibrous. That is, the use of parallel slits is advantageous in that the production efficiency of the pulverized product is extremely high, and it is advantageous to obtain a pulverized product having a long and narrow particle shape.
  • a screen having a right-angle slit of 0.6 mm ⁇ 10 mm (aperture ratio 19%) was used as the screen.
  • a powder with an average particle size (volume basis) of 34.8 m was obtained.
  • the raw material treatment amount in this example was 76 kgZhr, which was 327 kg / hr'm 2 when converted to the area lm 2 inside the screen of the pulverizer.
  • the structure of the pulverized product manufacturing apparatus is the structure shown in Fig. 1 (b) and the screen is a screen having a right slit of 0.4 mm x 10 mm (aperture ratio 19%).
  • Soybeans were ground under the same conditions as in Example 22. After grinding 30 kg of soybeans over 45 minutes, the average particle size (body Product standard) 29 ⁇ m powder was obtained. When the particle size distribution of the powder was measured, the number of particles with a particle size of 2 ⁇ m to 30 ⁇ m was 70%, and the number of particles with a particle size of 30 ⁇ m to 100 ⁇ m was 26%.
  • finer particles were obtained by narrowing the slits of the screen and supplying the pulverized material collected by the bag filter again into the pulverizer for pulverization.
  • the raw material treatment amount in this example was 40 kgZhr, which was 187 kg / hr'm 2 when converted to the area lm 2 inside the screen of the pulverizer.
  • the apparatus of the present invention has less wear and the like compared to the conventional apparatus using blades, hammers, etc., so that the life of the apparatus can be kept long. As a result, the maintenance of the equipment is simple and the maintenance costs can be reduced. Furthermore, safety is high because the risk of heat generation and ignition of the equipment is extremely low.
  • various materials such as ignitable materials, highly water-containing materials, and soft materials that have been difficult to pulverize can be easily pulverized with high efficiency.
  • normal temperature pulverization of leather, rubber, polymer, etc. is also possible, and these pulverized products can be obtained in a practical amount and quality.
  • the pulverized material of the present invention is manufactured using the pulverized material manufacturing apparatus of the present invention, so that it is low cost and high quality.
  • micron-sized fine powder can be mass-produced at high quality and at low cost.
  • the present invention is used in a process that requires a powdery perettoy rice cake, it can contribute to labor saving and the like.
  • product performance can be improved by using the pulverized product of the present invention with improved quality instead of the conventional pulverized product.

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Abstract

L'invention concerne un appareil de fabrication d'un produit broyé à haut rendement de fabrication et à haut rendement de récupération du produit, ainsi qu'un produit broyé fabriqué à l'aide de celui-ci. L'appareil de fabrication d'un produit broyé et son procédé de fabrication associé garantissent un haut rendement de fabrication et un haut rendement de récupération du produit grâce au broyage et au transport d'un produit broyé par énergie éolienne. Lors de la rotation initiale d'une roue mobile (aube rotative) dans un broyeur (3), l'intérieur du broyeur (3) est amené dans un état turbulent pressurisé par de l'énergie éolienne. Un moyen centrifugeur (4) est également actionné. Puis, lorsqu'une matière brute est introduite par un orifice d'introduction de matière brute (14), elle est broyée par le broyeur (3) pour préparer un produit broyé. Le produit broyé est chargé dans le moyen centrifugeur (4) grâce à l'énergie éolienne du broyeur (3) et à la force d'aspiration d'une machine d'aspiration à gaz (15). Le produit broyé est recueilli à l'intérieur d'un collecteur (5) monté sous le moyen centrifugeur (4). Le produit broyé qui n'a pas été séparé par le moyen centrifugeur (4) est recueilli à l'intérieur du collecteur (5) monté sous un moyen de collecte filtrant (6). L'appareil et le procédé de fabrication peuvent faire l'objet de modifications appropriées.
PCT/JP2005/024063 2004-12-28 2005-12-28 Appareil de fabrication d'un produit broye et produit broye fabrique a l'aide de celui-ci WO2006070866A1 (fr)

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JP2009090255A (ja) * 2007-10-11 2009-04-30 Earth Technica:Kk 粉体処理設備
JPWO2008032655A1 (ja) * 2006-09-15 2010-01-21 株式会社アースリンク 粉砕物製造装置
JP2013174405A (ja) * 2012-02-27 2013-09-05 Micro Powtec Kk 微粉砕乾燥装置、微粉砕乾燥機、滅菌処理方法、微粉砕乾燥物、米粉の製造方法、乾燥オカラ微粉、減容化処理方法、及び、バイオマス燃料
JP2015530244A (ja) * 2012-09-26 2015-10-15 グラスバスターズ リミテッドＧｌａｓｓｂｕｓｔｅｒｓ Ｌｉｍｉｔｅｄ ガラス破壊装置
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US9234701B2 (en) 2011-06-17 2016-01-12 Kabushiki Kaisha Kinki Crushing drying device
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JP2020158944A (ja) * 2019-03-20 2020-10-01 セイコーエプソン株式会社 解繊処理装置、および、繊維処理装置
CN116899722A (zh) * 2023-09-12 2023-10-20 浙江艾领创矿业科技有限公司 一种非金属矿物精细化加工装置及加工工艺

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