JP6346330B1 - Crusher - Google Patents

Abstract

Provided is a pulverizer as a simple and compact device capable of efficiently realizing that materials can collide with each other and pulverize to a smaller size by repeatedly passing through a predetermined portion and repeating aggregation and dispersion. To do. A rotating body having a blade body is installed in a flow path for pulverization formation, and an inlet slit that opens in the inflow direction of the flow path and an inflow direction of the flow path are opened in the blade body of the rotating body. The outlet slit to be formed was formed as a chamber extending between the inlet slit and the outlet slit. [Selection] Figure 1

Description

  The present invention relates to a pulverizer having a wide range of applications capable of simultaneously shearing, grinding, atomizing, dispersing, emulsifying, and fibrillating all materials from food materials to industrial materials.

There are various types of pulverizers for pulverization, and mechanical pulverizers include vortex pulverizers and turbo pulverizers. The following patent documents are mechanical pulverizers for fibrous materials. The rotor has a rotating shaft and a plurality of blades having a rotational pitch of 8 mm to 40 mm on the outer peripheral surface, and has a rotor fixed to the rotating shaft and a plurality of grooves on the inner peripheral surface. Has a liner disposed outside the rotor in a state having a predetermined gap with respect to the outer peripheral surface of the rotor, and means for rotating the rotor.
Japanese Patent Laid-Open No. 2002-1141

  According to the mechanical pulverizer disclosed in Patent Document 1, a fiber material such as wheat bran is pulverized satisfactorily by setting the pitch P (hereinafter referred to as blade pitch P) on the outer peripheral surface of the blade 44 to 8 mm to 40 mm. Thus, it can be made into a fine powder of 100 μm or less, and can be suitably added to various foods.

The following patent documents are proposed as a biomass material pulverizer capable of efficiently pulverizing biomass material with simple equipment, a biomass material pulverizing apparatus using the same, and a pulverization method.
JP 2012-61376 A

This patent document 2 does not pulverize the biomass material by impacting or crushing it with a hammer or roller, but repeatedly assembling and dispersing the biomass material in the air to repeatedly collide the biomass materials. As shown in FIG. 7 , the pulverization container 2 for receiving the biomass material to be pulverized and the rotary blade 3a rotatably supported in the pulverization container 2 are used. 3b, and the rotating blade has at least one pair of two pairs of collecting plates facing each other with a space therebetween, and the two pairs of collecting plates are arranged in front of the rotating blades in the rotation direction. It has the part which the space | interval of each other expanded toward.

  Reference numeral 4 denotes a rotating shaft of the rotary blades 3a and 3b, 5 denotes a driving source such as an electric motor, 6 denotes an inlet of the biomass material to be crushed, and 7 denotes an outlet of the pulverized biomass material.

  When the rotating blade having the collecting plate is rotated in the pulverization container, an air flow is generated in the pulverizing container along with the rotation, and the biomass material rises on the air flow, and the two rotating rotating collecting plates are mutually connected. It passes through the part where the interval of is expanded from the front to the rear. When passing through the expanded portion, the biomass material gathers along the two collecting plates to a narrow space behind the expanding portion, and then exits between the two collecting plates to a wider space. And disperse.

  Since the rotating blades having the collecting plates rotate at a high speed, the biomass material repeatedly passes through the part where the interval between the two collecting plates is widened, and the biomass material Will collide with each other and will be crushed to a smaller size.

  In the mechanical pulverizer of Patent Document 1, the blade pitch is limited. When the blade pitch P exceeds 40 mm, the pulverization efficiency of the fibrous material is deteriorated, and the fine fiber powder pulverized to 100 μm or less is good. Cannot be obtained with high efficiency. On the contrary, if the blade pitch P is too small, the efficiency is lowered. If the blade pitch P is less than 8 mm, the fine fiber powder pulverized to 100 μm or less cannot be obtained with good efficiency.

  In the pulverizing apparatus of Patent Document 2, the pulverizing part is configured by a rotating blade and a pair of two collecting plates sandwiched between the rotating blades, but the structure is complicated and clogging is likely to occur. There is also a risk that it cannot withstand high-speed rotation.

  The object of the present invention is to eliminate the inconveniences of the above-mentioned conventional examples, and by repeatedly passing through a predetermined portion and repeating aggregation and dispersion, it is possible to efficiently realize that materials collide with each other and can be crushed to a smaller size The object is to provide a pulverizer as a simple and compact device.

In order to achieve the above object, the present invention according to claim 1 is to install a rotating body having blades in a flow path for pulverization, and form an inlet slit and an outlet slit in the blades of the rotating body. The space between the inlet slit and the outlet slit is formed as a chamber that is a space that is wider than the width of the slits , and the chamber is cylindrical and has an elliptical shape that gradually increases in diameter toward the center of the vertical cross section. it is an Abstract that there.

  According to the first aspect of the present invention, when a material enters the chamber between the inlet slit and the outlet slit, a collision occurs, pulverizes and exits, and repeatedly passes through the chamber. By repeating the dispersion, the materials collide with each other and are crushed to a smaller size.

  The chamber is formed inside the blade body of the rotating body, and is not formed by providing another member or the like outside the blade body, but can be formed in the shape of the blade body itself, so it is simple and robust. It can withstand high-speed rotation. In addition, the simple structure makes it compact and durable.

Further, by making the chamber cylindrical and elliptical, the collection and dispersion of the material can be repeated without difficulty, and collision can be effectively caused at the outlet slit.

The gist of the present invention described in claim 2 is that the inlet slit, the outlet slit and the chamber are formed as a gap between the plates by combining the rotating bodies with two plates.

According to the second aspect of the present invention, the inlet slit, the outlet slit and the chamber can be simultaneously formed with a minimum of members.

  As described above, the pulverizer of the present invention can easily and efficiently realize that materials can collide with each other and pulverize to a smaller size by repeatedly passing through a predetermined portion and repeating aggregation and dispersion. It is compact.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory view showing a first embodiment of the pulverizer of the present invention, FIG. 2 is a perspective view of the rotating body 13 portion, and 8 is a flow path for pulverization formation. For example, the path 8 is formed in a casing 11 having a material (raw material) inlet 9 and a product outlet 10.

The rotating body 13 has a blade body 12 having a pulverizing function, and is installed in the pulverization forming flow path 8. An inlet slit 15 and an outlet slit 16 are formed in the blade body 12. A space between the entrance slit 15 and the outlet slit 16 was formed as a cylindrical chamber (partition) 17 that is a space wider than the width of these slits .

  The inlet slit 15 opens in the inflow direction of the pulverization forming flow path 8, and the outlet slit 16 opens in the outflow direction of the pulverization forming flow path 8.

The cylindrical chamber 17 is preferably located between the inlet slit 15 and the outlet slit 16 and has an elliptical cross section that gradually expands toward the center of the vertical cross section .

  In the illustrated example, the blade body 12 is a rectangular parallelepiped elongated projecting in the cross direction from the center of the rotating body 13, and the inlet slit 15 and the outlet slit 16 are opposed to each other in the length direction on the side of the elongated body. Form.

The cylindrical chamber 17 was formed as a recess by scraping the inside of the blade body 12.

  In consideration of ease of manufacture, the rotating body 13 can form the inlet slit 15, the outlet slit 16 and the chamber 17 simultaneously by combining two plate members. When the member on one side is shown in FIG. 3, the blade constituting member protrudes in four directions from the boss portion 18 in which the shaft insertion hole 14 through which the central rotation shaft is inserted is formed.

  When the number of the blade bodies 12 is four, the boss portion 18 is square, and the blade member constituting the U-shaped concave portion formed on the side surface thereof is projected so as to protrude in four directions.

In this way, when the rotary member 13 as shown in FIG. 2 is configured by combining the members on one side shown in FIG. 3 in the front-rear direction, the gap between the blade member constituting members forms the inlet slit 15 and the outlet slit 16. The chamber 17 having an elliptical cross section is formed by combining the U-shaped recesses of the blade member.

  The members on one side are connected to each other by welding or screwing at the center, or other connecting means.

  The front end surface of the blade body 12 may be a closed surface, but may have a notch through which the inlet slit 15, the outlet slit 16, and the chamber 17 are removed.

  The shaft insertion hole 14 formed in the boss portion 18 is provided with a key groove 19 that engages with a key provided on the rotating shaft.

  As shown in FIG. 1, the motor 20 is attached to the casing 11, and the rotating body 13 is attached to the rotating shaft 21.

  Next, the usage will be described. When the rotating body 13 is rotated by the motor 20, the inside of the chamber 17 is decompressed as shown in FIG.

The material (raw material) is input to the material (raw material) input port 9 and exits from the product discharge port 10 via the pulverization flow path 8, but passes through the inside of the blade body 12 of the rotating body 13 and flows. The cylindrical chamber 17 between the inlet slit 15 and the outlet slit 16 collides with the material entering here, and is crushed and exits.

FIG. 5 shows another embodiment of the present invention. By increasing the number of rotating bodies 13 or the number of combinations of blade bodies 12, the inlet slit 15 and the outlet slit 16 and the cylinder between them are shown. The number of shaped chambers 17 is increased.

  The illustrated example is a combination of a blade body forming member formed with recesses formed on only one side and a blade body forming member formed with recesses formed on both sides, without increasing the number of rotating bodies 13. Increased the number of upper and lower tiers.

Next, the test results are described in order to test the effect of the present invention. As the motor 20, a multi-mill drive base Mitsubishi 3.7kw 2P was used.
(Part 1)
Rice was used as a raw material.
Frequency: 90Hz 5400rpm
Collection machine: 120Hz
Classifying blades: 8 pieces, the raw materials were charged by hand and adjusted so as not to exceed 4 amps. There is not much heat generation and pulverization is good. It could be crushed with under 10μ.

(Part 2)
Tea leaves (mixed stem and leaves) were used as raw materials.
Frequency: 90Hz 5400rpm
Collection machine: 120Hz
Classifying blades: With 8 sheets, the raw materials were manually added, and 350 g was added in 30 minutes while adjusting not to exceed 3.2 amperes. It could be crushed with under 10μ.

FIG. 6 shows a micrograph that is a plan view of the pulverized product. The scale of the photograph is 13μ.

(Part 3)
Dry wormwood was used as a raw material.
Frequency: 90Hz 5400rpm
Collection machine: 120Hz
Clearance: 6mm (inlet slit 15 and outlet slit 16)
It became a mixture of a cotton-like thing and powder with classification blade.

(Part 4)
Shiitake mushroom was used as a raw material.
Frequency 90Hz 5400rpm
Recovery machine: 70Hz
Gap: 7mm (inlet slit 15 and outlet slit 16)
With 8 classification blades, it became fine powder without becoming cotton. It could be crushed with under 10μ.

It is explanatory drawing which shows one Embodiment of the grinder of this invention. It is a perspective view of the rotary body part which shows one Embodiment of the grinder of this invention. It is a perspective view of the rotary body structural member which shows one Embodiment of the grinder of this invention. It is operation | movement explanatory drawing of the grinder of this invention. It is explanatory drawing which shows other embodiment of the grinder of this invention. It is a top view of the product obtained from the grinder of this invention. It is a partial notch perspective view which shows a prior art example.

DESCRIPTION OF SYMBOLS 1 ... Biomass material grinder 2 ... Grinding container 3a, 3b ... Rotary blade 4 ... Rotating shaft 5 ... Drive source 6 ... Inlet 7 ... Outlet 8 ... Flow path for pulverization formation 9 ... Material (raw material) inlet 10 ... Product waste Outlet 11 ... Casing 12 ... Blade body 13 ... Rotating body 14 ... Shaft insertion hole 15 ... Inlet slit 16 ... Outlet slit 17 ... Chamber 18 ... Boss portion 19 ... Key groove 20 ... Motor 21 ... Rotating shaft

Claims (2)

A rotating body having blades is installed in the flow path for pulverization. An inlet slit and an outlet slit are formed in the blade of the rotating body, and the slits are formed between the inlet slit and the outlet slit. A pulverizer characterized in that it is formed as a chamber that is a space that is wider than the width of the cylinder, and the chamber is cylindrical and has an elliptical shape that gradually increases in diameter toward the center of the vertical cross section .   The crusher according to claim 1, wherein the inlet slit, the outlet slit, and the chamber are formed as a gap between the plates by combining the two rotating plates.