CN113145285A - Anti-liquefaction device for crushing raw materials and using method thereof - Google Patents
Anti-liquefaction device for crushing raw materials and using method thereof Download PDFInfo
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- CN113145285A CN113145285A CN202110457327.1A CN202110457327A CN113145285A CN 113145285 A CN113145285 A CN 113145285A CN 202110457327 A CN202110457327 A CN 202110457327A CN 113145285 A CN113145285 A CN 113145285A
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/10—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged above container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/12—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged below container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
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- 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
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- C—CHEMISTRY; METALLURGY
- C13—SUGAR INDUSTRY
- C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
- C13B50/00—Sugar products, e.g. powdered, lump or liquid sugar; Working-up of sugar
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Biochemistry (AREA)
- Organic Chemistry (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention belongs to the technical field of brown sugar processing, and particularly relates to a liquefaction prevention device for crushing raw materials. This device can be when continuously producing cooling air current, intermittent type nature add high pressure drop temperature air current in cooling air current, form mixed cooling air current. The invention also provides a using method of the device, which comprises the steps of generating continuous cooling air flow, forming pressure difference, generating intermittent high-pressure cooling air flow and the like.
Description
Technical Field
The invention belongs to the technical field of brown sugar processing, and particularly relates to a liquefaction prevention device for crushing raw materials and a using method thereof.
Background
The brown sugar refers to sugarcane finished sugar with honey, and the sugarcane is juiced and concentrated to form the honey. Brown sugar is divided into tablet sugar, brown granulated sugar, brown sugar powder, bowl sugar and the like according to different crystal particles, almost all components in cane juice are reserved due to no high refining, besides the functions of sugar, the brown sugar also contains vitamins and trace elements such as iron, zinc, manganese, chromium and the like, and the nutrient content is much higher than that of the white granulated sugar. The famous brown sugar producing areas include Guangxi Guilin Congying Yao nationality autonomous county, Yunnan and the like. A pulverizer is a machine that pulverizes a large-sized solid raw material to a desired size. The crusher consists of coarse crushing, fine crushing, wind conveying and other devices, and the purpose of the crusher is achieved in a high-speed impact mode. The wind energy is utilized to produce powder at one time, and the traditional screening procedure is cancelled. The method is mainly applied to various industries such as mines, building materials and the like. The brown sugar needs to be smashed massive brown sugar at the in-process of processing, however current brown sugar rubbing crusher is mostly bulky, and the framework is complicated, and it is troublesome to remove, and the material loading is difficult moreover, so we need a neotype brown sugar rubbing crusher of a section to solve above-mentioned problem, satisfy people's demand.
The brown sugar is in a block shape in the industrial production process and partial retail sale, and is required to be crushed before packaging or using, so that the block brown sugar is crushed into powder, and a brown sugar crusher is developed by the market and various manufacturers to crush the brown sugar. The pulverizer in the market comprises a feed hopper, a pulverizer body, a rotor disc, a sieve sheet, a stator disc, a discharge port and the like. The main shaft of the machine is provided with a rotor disc, the rotor disc is provided with steel teeth and hammer sheets, the crushing chamber cover is provided with fixed steel teeth, and the steel teeth, the hammer sheets and the fixed steel teeth on the rotor disc are arranged in a staggered manner. When the main shaft runs at high speed, the rotor disc also runs simultaneously, and the materials are crushed under the combined action of mutual impact, shearing, friction and the like between the materials and the teeth or between the materials after being introduced. The crushed material is rapidly crushed along the outer edge of the rotor by continuous striking, collision and rubbing of the hammer, the toothed plate and the sieve sheet under the action of air flow and gravity. This local is equipped with the screen cloth, and the screen cloth can be changed according to the customer requirement, when the material is smashed to being less than the sieve mesh diameter, comes out from the screen cloth through the sieve mesh rapidly because of receiving rotor centrifugal force effect, falls into the discharge gate of below. The coarse material is continuously crushed. The general materials are collected through the cotton cloth bag after being crushed, the crushed materials are collected in the bag, air comes out from the tiny holes of the cloth bag, and fine powder cannot be discharged, so that the effects of no waste and no pollution are achieved. The size of the particle is determined by replacing the screen with different meshes. The grinder with the structure only uses the hammer sheets and the steel teeth on the rotor disc and the stator disc to grind the brown sugar after the introduction of the block brown sugar, has low efficiency, and causes the practical discharge amount of the brown sugar powder to be small because the screen rotates along with the rotor disc.
The patent with publication number CN201366363Y discloses a brown sugar grinder, which comprises a frame, a motor, a grinding cutter, a feed chute and a cover shell, wherein the motor is arranged on the frame, the grinding cutter is in a cross shape, the center of the grinding cutter is provided with a hole, the grinding cutter is directly arranged and fixed on a motor shaft to rotate, the feed chute is horizontally fixed on the frame and is provided with an outlet on the wall of the cover shell, the wall of the cover shell where the outlet of the feed chute is arranged is parallel to the plane where the grinding cutter is arranged, the cover shell is fixed on the frame and covers the grinding cutter, a shell door arranged on the cover shell can be opened and closed at will, a collecting hopper is arranged at the lower opening of the cover shell, and the ground brown sugar is discharged through the collecting hopper. During operation, brown sugar is fed to the crushing knife through the feeding groove to be crushed. The novel machine tool is high in working efficiency, free of sticking and blocking of working parts, safe, reliable, convenient to clean a machine cavity, simple in structure, light in weight and convenient to use.
The patent that publication number is CN207025438U discloses a brown sugar rubbing crusher, including the rubbing crusher main part, the surface of rubbing crusher main part is equipped with rubbing crusher shell, the left side of rubbing crusher main part is equipped with material feeding unit, material feeding unit's right-hand member is equipped with the rubbing crusher feed inlet, the inside upper portion of rubbing crusher main part is equipped with big crushing wheel, left side and the right side of big crushing wheel below all are equipped with little crushing wheel, the left side and the right side of rubbing crusher main part inner wall all are equipped with crushing board, the bottom of rubbing crusher main part is equipped with the rubbing crusher base, the left side and the right side of rubbing crusher base bottom all are equipped with roller device. The brown sugar pulverizer is simple in structure, convenient to use and move. However, the following problems still exist:
when the existing brown sugar pulverizer is used for processing brown sugar into brown sugar powder, the brown sugar powder is easy to liquefy.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a liquidation preventing device for crushing raw materials, which is used for solving the problems that brown sugar powder is easy to liquefy and the like when the brown sugar is processed into the brown sugar powder by the existing brown sugar crusher in the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a raw materials is smashed and is used anti-liquefaction device, includes the cylindricality shell, the rear end of cylindricality shell is the air inlet, the front end of cylindricality shell is the gas outlet, the inside drive shaft that still is equipped with of cylindricality shell, the drive shaft rear end is equipped with first fan wheel, the drive shaft front end is equipped with the second fan wheel, still be equipped with intermittent type jet mechanism between first fan wheel and the second fan wheel, intermittent type jet mechanism fixes on cylindricality shell inner wall.
One end of the driving shaft is externally connected with a power input device which can be a motor, the power input device drives the driving shaft to rotate, the first fan wheel and the second fan wheel are driven to rotate at the same time to generate cooling airflow, the flow rate of the cooling airflow generated by the first fan wheel is greater than that of the cooling airflow generated by the second fan wheel, so that the air pressure between the first fan wheel and the second fan wheel is greater than that of the air outlet, and the air pressure difference is generated; the intermittent air injection mechanism works under the action of air pressure difference and intermittently injects high-pressure cooling air flow to the air outlet.
The device can intermittently add high-pressure temperature-reduction airflow into the cooling airflow while continuously generating the cooling airflow to form mixed cooling airflow; the mixed cooling airflow can not only cool the grinding mechanism in the brown sugar processing flow, but also prevent the grinding mechanism from increasing the temperature due to grinding of the brown sugar for a long time, and further prevent the brown sugar from liquefying when contacting the grinding mechanism; meanwhile, the brown sugar powder can be prevented from being accumulated by the intermittent high-pressure cooling airflow.
Furthermore, the intermittent air injection mechanism further comprises an annular inner shell, the outer circle side of the annular inner shell is fixed on the inner wall of the cylindrical outer shell, the inner circle side of the annular inner shell is rotatably connected with the driving shaft, the inner space of the annular inner shell is a low-pressure space, the space between the outside of the annular inner shell and the cylindrical outer shell is a high-pressure space, a hollow cylindrical slide way is arranged on the wall of the annular inner shell, and a pressure valve is arranged inside the slide way;
when the pressure valve is communicated, the slideway communicates the low-pressure space with the outside of the annular inner shell;
when the pressure valve is closed, the low-pressure space is sealed off from the outside of the annular inner shell;
and the annular inner shell is also provided with an air injection pipe which is communicated with the low-pressure space and the air outlet.
When the pressure valve is closed, the pressure in the high-pressure space is gradually increased, the pressure in the low-pressure space is kept unchanged, and the pressure valve has the opening tendency due to the pressure difference between the two spaces; and after the pressure difference between the two spaces is greater than the critical pressure of the pressure valve, the pressure valve is opened to enable the high-pressure space and the low-pressure space to be communicated, and the gas in the high-pressure space flows to the low-pressure space at a high speed to form high-pressure cooling airflow and is sprayed out from the gas outlet. After the gas in the high-pressure space flows out, the pressure in the high-pressure space is rapidly reduced, the pressure difference is smaller than the critical pressure of the pressure valve, the pressure valve is sealed and sealed again, a cycle is completed, the high-pressure temperature-reducing airflow is added into the cooling airflow intermittently while the cooling airflow is continuously generated, and mixed cooling airflow is formed.
The pressure valve further comprises a pressure valve body, a valve core and a spring, wherein a sliding groove is formed in the right end of the pressure valve body, the valve core is arranged in the sliding groove and is in sliding connection with the sliding groove, the left end of the spring is fixedly connected with the valve core, and the right end of the spring is connected with the inner wall of the annular inner shell;
the sliding chute is fixed in the slideway, and the chute wall of the sliding chute is provided with an outflow hole which is used for communicating the inside of the sliding chute with the low-pressure space; an inflow hole is formed in the center of the pressure valve body, and the inside of the sliding chute is communicated with the left end of the sliding way through the inflow hole;
when the spring is in a free state, the valve core simultaneously blocks the inflow hole and the outflow hole; when the spring is in a compressed state, the inflow hole is communicated with the outflow hole.
The elastic force of the spring pushes the valve core to simultaneously block the inflow hole and the outflow hole, and pressure difference acts on the valve core to push the valve core to move rightwards and compress the spring until the inflow hole is communicated with the outflow hole; at the moment, the gas in the high-pressure space sequentially passes through the inflow hole and the outflow hole to enter the low-pressure space; thereby realizing intermittent high-pressure cooling airflow.
Furthermore, the pressure valve further comprises an adjusting cylinder and an adjusting telescopic rod, the adjusting cylinder is fixed on the inner wall of the annular inner shell, one end of the adjusting telescopic rod is arranged in the adjusting cylinder and is in sliding connection with the adjusting cylinder, a spring seat is arranged at the free end of the adjusting telescopic rod, and the right end of the spring is fixed on the spring seat.
The adjusting cylinder controls the adjusting telescopic rod to extend or retract so as to drive the spring seat to move left and right, after the spring seat is adjusted left, the compression degree of the spring is improved, the critical pressure for opening the pressure valve is improved, the maximum pressure difference is improved, and the flow rate of high-pressure cooling air flow is enhanced; on the contrary, after the spring seat is adjusted rightwards, the compression degree of the spring is reduced, and the critical pressure for opening the pressure valve is reduced, so that the maximum pressure difference is reduced, and the flow rate of high-pressure cooling airflow is reduced; the effect of adjusting the flow rate of the high-pressure cooling air flow is achieved, so that the crushing mechanism is suitable for different operation conditions.
Further, the second impeller includes second wheel hub, second spoke and second flabellum again, second wheel hub fixes in the drive shaft, the second flabellum is established along the equidistant ring of circumference of second spoke, set up the spoke through-hole that the several equidistance distributes on the second spoke, spoke through-hole right-hand member and jet-propelled pipe through connection.
In the continuous rotation process of the second impeller, the air outlet, the spoke through hole, the air injection pipe and the low-pressure space are communicated all the time and are isolated from the high-pressure space; to ensure a pressure difference between the low-pressure space and the high-pressure space.
Further, first flabellum includes first wheel hub, first spoke and first flabellum again, first wheel hub fixes in the drive shaft, first flabellum is established along the equidistant ring of circumference of first spoke, just first flabellum is "7" style of calligraphy, first spoke is by being equipped with the several and is the even water conservancy diversion piece of circumference to air inlet one side.
The distance between two adjacent first fan blades is smaller than that between two adjacent second fan blades, and the design can ensure that the airflow generated by the first fan wheel is always larger than that generated by the second fan wheel under the condition of the same rotating speed of the first fan wheel and the second fan wheel, so that a high-pressure space can be formed; the first fan blade is 7-shaped, so that the airflow generated by the first fan blade can be enhanced to a greater extent; the guide vane can guide the airflow on the surface of the first spoke to the first fan blade, the airflow generated by the first fan blade is enhanced again, and the maximum air pressure of a high-pressure space is improved.
Further, be equipped with first sealing ring on the pressure valve body outer wall, be equipped with the second sealing ring on the spring holder outer wall, just the material of first sealing ring and second sealing ring is rubber.
The first sealing ring is added, so that gas in a high-pressure space can be prevented from flowing into a low-pressure space from a gap between the outer wall of the valve body of the pressure valve and the slideway, and the reliability of the device is improved; the second sealing ring can reduce friction between the spring seat and the slideway, and service life is prolonged.
Further, still including locating the cutter group of gas outlet department, the cutter group includes the cutter pivot again and several evenly distributed is at the fan-shaped blade on the cutter pivot.
One end of the cutter rotating shaft is connected with a driving motor, the driving motor drives the cutter rotating shaft to rotate from the fan-shaped blade, and the fan-shaped blade crushes the lumpy brown sugar; the mixed cooling air current of gas outlet department spun acts on fan-shaped blade, prevents that fan-shaped blade from smashing the brown sugar for a long time and leading to its temperature to rise, causes the liquefaction of brown sugar powder.
Further, the inside cooling tube that is equipped with of cutter pivot, it has several radial evenly distributed's cooling hole, several to open in the cutter pivot the cooling hole is in fan-shaped blade top and below, and every the cooling hole all with cooling tube through connection, cooling tube outer end and gas outlet through connection.
The gas outlet is to mixed cooling air current of blowout in the cooling pipe, and mixed cooling air current follows the cooling hole is to the surface blowout about the fan-shaped blade, cools down to the surface about the fan-shaped blade, prevents that the surface from rising because of smashing the brown sugar for a long time and temperature about the fan-shaped blade, and then prevents that the brown sugar from liquefying when contacting fan-shaped blade.
The use method of the anti-liquefaction device for crushing the raw material comprises the following steps:
s1, generating a continuous cooling air flow, wherein the driving shaft simultaneously drives the first fan wheel and the second fan wheel to rotate and generate a continuous cooling air flow;
s2, forming a pressure difference, wherein the flow speed of the cooling air flow generated by the first fan wheel is larger than that of the cooling air flow generated by the second fan wheel, so that the air pressure between the first fan wheel and the second fan wheel is larger than that of the air outlet, and forming an air pressure difference;
s3, generating intermittent high-pressure cooling airflow, closing the pressure valve, gradually increasing the pressure in the high-pressure space, keeping the pressure in the low-pressure space unchanged, and enabling the pressure valve to have a tendency of opening due to the pressure difference between the two spaces; after the pressure difference between the two spaces is greater than the critical pressure of the pressure valve, the pressure valve is opened to enable the high-pressure space to be communicated with the low-pressure space, and the gas in the high-pressure space flows to the low-pressure space at a high speed to form high-pressure cooling airflow and is sprayed out from the gas outlet;
s4, adjusting the air flow pressure, adjusting the telescopic rod to extend or retract by the control of the adjusting cylinder, thereby driving the spring seat to move left and right, adjusting the compression degree of the spring, further adjusting the critical pressure of the pressure valve, further adjusting the maximum pressure difference, and realizing adjusting the air pressure of the intermittent high-pressure cooling air flow.
According to the method, the first fan wheel and the second fan wheel are used for generating continuous cooling air flow, and the air flow velocity generated by the first fan wheel and the air flow velocity generated by the second fan wheel are different, so that pressure difference is formed between the two fan wheels, the intermittent air injection mechanism generates intermittent high-pressure cooling air flow by using the pressure difference, two air flows are simultaneously sprayed out from the air outlet, the crushing mechanism in the brown sugar processing flow is cooled, and the brown sugar powder is prevented from being accumulated.
Compared with the prior art, the invention has the following beneficial effects:
1. the device can intermittently add high-pressure temperature-reduction airflow into the cooling airflow while continuously generating the cooling airflow to form mixed cooling airflow; the mixed cooling airflow can not only cool the grinding mechanism in the brown sugar processing flow, but also prevent the grinding mechanism from increasing the temperature due to grinding of the brown sugar for a long time, and further prevent the brown sugar from liquefying when contacting the grinding mechanism;
2. meanwhile, the brown sugar powder can be prevented from being accumulated by the intermittent high-pressure cooling airflow.
3. When the pressure valve is closed, the pressure in the high-pressure space is gradually increased, the pressure in the low-pressure space is kept unchanged, and the pressure valve has the opening tendency due to the pressure difference between the two spaces; and after the pressure difference between the two spaces is greater than the critical pressure of the pressure valve, the pressure valve is opened to enable the high-pressure space and the low-pressure space to be communicated, and the gas in the high-pressure space flows to the low-pressure space at a high speed to form high-pressure cooling airflow and is sprayed out from the gas outlet. After the gas in the high-pressure space flows out, the pressure in the high-pressure space is rapidly reduced, the pressure difference is smaller than the critical pressure of the pressure valve, the pressure valve is sealed and sealed again, a cycle is completed, the high-pressure temperature-reducing airflow is added into the cooling airflow intermittently while the cooling airflow is continuously generated, and mixed cooling airflow is formed.
4. The adjusting cylinder controls the adjusting telescopic rod to extend out or retract back and forth so as to drive the spring seat to move left and right and change the compression degree of the spring, so that the critical pressure of the pressure valve is adjusted, the maximum pressure difference is adjusted, and the flow speed adjustment of cooling air flow is realized; the effect of adjusting the flow rate of the high-pressure cooling air flow is achieved, so that the crushing mechanism is suitable for different operation conditions.
5. In the continuous rotation process of the second impeller, the air outlet, the spoke through hole, the air injection pipe and the low-pressure space are communicated all the time and are isolated from the high-pressure space; to ensure a pressure difference between the low-pressure space and the high-pressure space.
6. The first fan blade is 7-shaped, so that the airflow generated by the first fan blade can be enhanced to a greater extent; the guide vane can guide the airflow on the surface of the first spoke to the first fan blade, the airflow generated by the first fan blade is enhanced again, and the maximum air pressure of a high-pressure space is improved.
7. The first sealing ring is added, so that gas in a high-pressure space can be prevented from flowing into a low-pressure space from a gap between the outer wall of the valve body of the pressure valve and the slideway, and the reliability of the device is improved; the second sealing ring can reduce friction between the spring seat and the slideway, and service life is prolonged.
8. The gas outlet is to mixed cooling air current of blowout in the cooling pipe, and mixed cooling air current follows the cooling hole is to the surface blowout about the fan-shaped blade, cools down to the surface about the fan-shaped blade, prevents that the surface from rising because of smashing the brown sugar for a long time and temperature about the fan-shaped blade, and then prevents that the brown sugar from liquefying when contacting fan-shaped blade.
9. According to the method, the first fan wheel and the second fan wheel are used for generating continuous cooling air flow, and the air flow velocity generated by the first fan wheel and the air flow velocity generated by the second fan wheel are different, so that pressure difference is formed between the two fan wheels, the intermittent air injection mechanism generates intermittent high-pressure cooling air flow by using the pressure difference, two air flows are simultaneously sprayed out from the air outlet, the crushing mechanism in the brown sugar processing flow is cooled, and the brown sugar powder is prevented from being accumulated.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of a liquefaction prevention apparatus for pulverizing a raw material according to the present invention;
FIG. 2 is a schematic view of a portion A of FIG. 1;
FIG. 3 is a schematic perspective sectional view of an embodiment of the liquefaction prevention apparatus for pulverization of raw materials according to the present invention (excluding the cutter group);
FIG. 4 is a schematic cross-sectional view of an embodiment of the liquefaction prevention apparatus for pulverization of raw materials according to the present invention (excluding the cutter set, operating condition one);
FIG. 5 is an enlarged view of a portion of the structure of FIG. 4 at D;
FIG. 6 is a schematic sectional view showing an embodiment of the liquefaction prevention apparatus for pulverization of raw materials according to the present invention (with the cutter set removed, in the second operation state);
FIG. 7 is an enlarged partial view of FIG. 6 at E;
FIG. 8 is a schematic perspective view of a second impeller of an embodiment of a liquefaction prevention apparatus for pulverization of raw materials according to the present invention;
FIG. 9 is a schematic perspective view of a first impeller of an embodiment of a liquefaction prevention apparatus for pulverization of raw materials according to the present invention;
reference numerals in the drawings of the specification include:
the cutter group 2, the cutter rotating shaft 23, the cooling pipe 232, the cooling hole 233 and the fan-shaped blade 24;
a cylindrical housing 41, an air inlet 411, an air outlet 412, a high-pressure space 413, a drive shaft 42 and a drive shaft guard plate 421;
the first impeller 43, the first hub 431, the first spoke 432, the first fan blade 433, the deflector 434, the second impeller 44, the second hub 441, the second spoke 442, the second fan blade 443, and the spoke through hole 444;
the intermittent air injection mechanism 45, the annular inner shell 451, the low-pressure space 452, the slide 453 and the air injection pipe 454;
the pressure valve 46, the pressure valve body 461, the valve element 462, the spring 463, the slide groove 464, the inflow hole 465, the outflow hole 466, the adjusting cylinder 467, the adjusting telescopic rod 468, the spring seat 469, the first seal ring 47, and the second seal ring 48.
Detailed Description
In order that those skilled in the art can better understand the present invention, the following technical solutions are further described in conjunction with the accompanying drawings and examples:
it should be noted that the same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
Example one
As shown in fig. 1 to 9, a liquefaction prevention device for crushing raw materials comprises a cylindrical housing 41, an air inlet 411 is arranged at the rear end of the cylindrical housing 41, an air outlet 412 is arranged at the front end of the cylindrical housing 41, a driving shaft 42 is further arranged inside the cylindrical housing 41, a first fan wheel 43 is arranged at the rear end of the driving shaft 42, a second fan wheel 44 is arranged at the front end of the driving shaft 42, an intermittent air injection mechanism 45 is further arranged between the first fan wheel 43 and the second fan wheel 44, and the intermittent air injection mechanism 45 is fixed on the inner wall of the cylindrical housing 41.
One end of the driving shaft 42 is externally connected with a power input device, which can be a motor, the power input device drives the driving shaft 42 to rotate, and simultaneously drives the first fan wheel 43 and the second fan wheel 44 to rotate and generate cooling airflow, the flow rate of the cooling airflow generated by the first fan wheel 43 is greater than that of the cooling airflow generated by the second fan wheel 44, so that the air pressure between the first fan wheel 43 and the second fan wheel 44 is greater than that of the air outlet 412, and an air pressure difference is generated; the intermittent air injection mechanism 45 works under the action of air pressure difference, and intermittently injects high-pressure cooling air flow to the air outlet 412.
The device can intermittently add high-pressure temperature-reduction airflow into the cooling airflow while continuously generating the cooling airflow to form mixed cooling airflow; the mixed cooling airflow can not only cool the grinding mechanism in the brown sugar processing flow, but also prevent the grinding mechanism from increasing the temperature due to grinding of the brown sugar for a long time, and further prevent the brown sugar from liquefying when contacting the grinding mechanism; meanwhile, the brown sugar powder can be prevented from being accumulated by the intermittent high-pressure cooling airflow.
The intermittent air injection mechanism 45 further comprises an annular inner shell 451, the outer circle side of the annular inner shell 451 is fixed on the inner wall of the cylindrical outer shell 41, the inner circle side of the annular inner shell 451 is rotatably connected with the driving shaft 42, the inner space of the annular inner shell 451 is a low-pressure space 452, the space between the outer part of the annular inner shell 451 and the cylindrical outer shell 41 is a high-pressure space 413, a hollow cylindrical slide 453 is arranged on the shell wall of the annular inner shell 451, and a pressure valve 46 is arranged inside the slide 453;
when the pressure valve 46 is pierced, the slide 453 pierces the low-pressure space 452 with the outside of the annular inner casing 451;
when the pressure valve 46 is closed, the low-pressure space 452 is sealed off from the outside of the annular inner shell 451;
the annular inner shell 451 is further provided with an air injection pipe 454, and the air injection pipe 454 penetrates the low-pressure space 452 and the air outlet 412.
When the pressure valve 46 is closed, the pressure in the high-pressure space 413 gradually rises, the pressure in the low-pressure space 452 remains unchanged, and the pressure difference between the two spaces causes the pressure valve 46 to have a tendency to open; when the pressure difference between the two spaces is greater than the critical pressure of the pressure valve 46, the pressure valve 46 is opened to allow the high-pressure space 413 and the low-pressure space 452 to communicate with each other, and the gas in the high-pressure space 413 flows into the low-pressure space 452 at a high speed to form a high-pressure cooling gas flow and is ejected from the gas outlet 412. After the gas in the high-pressure space 413 flows out, the pressure in the high-pressure space 413 is rapidly reduced, the pressure difference is smaller than the critical pressure of the pressure valve 46, the pressure valve 46 is closed and re-closed, and therefore a cycle is completed, the high-pressure temperature-reducing airflow can be intermittently added into the temperature-reducing airflow while the temperature-reducing airflow is continuously generated, and the mixed temperature-reducing airflow is formed.
The pressure valve 46 further comprises a pressure valve body 461, a valve core 462 and a spring 463, wherein the right end of the pressure valve body 461 is provided with a sliding groove 464, the valve core 462 is arranged in the sliding groove 464 and is connected with the sliding groove 464 in a sliding way, the left end of the spring 463 is fixedly connected with the valve core 462, and the right end of the spring 463 is connected with the inner wall of the annular inner shell 451;
the sliding chute 464 is fixed in the slide way 453, a flow-out hole 466 is formed in the wall of the sliding chute 464, and the flow-out hole 466 connects the inside of the sliding chute 464 with the low-pressure space 452 in a penetrating manner; an inflow hole 465 is formed in the center of the pressure valve body 461, and the inside of the sliding groove 464 is communicated with the left end of the slide 453 through the inflow hole 465;
when the spring 463 is in a free state, the valve element 462 blocks the inflow hole 465 and the outflow hole 466 simultaneously; when the spring 463 is in a compressed state, the inlet hole 465 and the outlet hole 466 are penetrated.
The elastic force of the spring 463 pushes the valve core 462 to simultaneously block the inflow hole 465 and the outflow hole 466, and the pressure difference acts on the valve core 462 to push the valve core 462 to move rightwards and compress the spring 463 until the inflow hole 465 and the outflow hole 466 are communicated; at this time, the gas in the high-pressure space 413 sequentially passes through the inflow hole 465 and the outflow hole 466 to enter the low-pressure space 452; thereby realizing intermittent high-pressure cooling airflow.
The pressure valve 46 further comprises an adjusting cylinder 467 and an adjusting telescopic rod 468, the adjusting cylinder 467 is fixed on the inner wall of the annular inner shell 451, one end of the adjusting telescopic rod 468 is arranged in the adjusting cylinder 467 and is in sliding connection with the adjusting cylinder 467, a spring seat 469 is arranged at the free end of the adjusting telescopic rod 468, and the right end of the spring 463 is fixed on the spring seat 469.
The adjusting cylinder 467 controls the adjusting telescopic rod 468 to extend out or retract back, so as to drive the spring seat 469 to move left and right, when the spring seat 469 is adjusted left, the compression degree of the spring 463 is improved, the critical pressure for opening the pressure valve 46 is improved, so that the maximum pressure difference is improved, and the flow rate of high-pressure cooling air flow is increased; on the contrary, when the spring seat 469 is adjusted to the right, the compression degree of the spring 463 is reduced, and the critical pressure for opening the pressure valve 46 is reduced, so that the maximum pressure difference is reduced, and the flow rate of the high-pressure cooling air flow is reduced; the effect of adjusting the flow rate of the high-pressure cooling air flow is achieved, so that the crushing mechanism is suitable for different operation conditions.
The second impeller 44 further includes a second hub 441, a second spoke 442 and a second vane 443, the second hub 441 is fixed on the driving shaft 42, the second vane 443 is annularly disposed along the circumference of the second spoke 442 at equal intervals, a plurality of spoke through holes 444 are disposed on the second spoke 442 and are distributed at equal intervals, and the right end of the spoke through hole 444 is connected to the gas injection pipe 454 in a penetrating manner.
During the continuous rotation process of the second impeller 44, the air outlet 412, the spoke through hole 444, the air injection pipe 454 and the low-pressure space 452 are always communicated and isolated from the high-pressure space 413; to ensure a pressure differential between the low pressure space 452 and the high pressure space 413.
The first impeller 43 further includes a first hub 431, a first spoke 432 and a first vane 433, the first hub 431 is fixed on the driving shaft 42, the first vane 433 is annularly arranged along the circumference of the first spoke 432 at equal intervals, the first vane 433 is in a shape of '7', and a plurality of circumferentially uniform guide vanes 434 are arranged on one side of the first spoke 432, which is close to the air inlet 411.
The distance between two adjacent first fan blades 433 is smaller than the distance between two adjacent second fan blades 443, so that the airflow generated by the first fan wheel 43 is always larger than the airflow generated by the second fan wheel 44 under the condition that the first fan wheel 43 and the second fan wheel 44 rotate at the same speed, and the high-pressure space 413 can be formed; the first fan blades 433 are 7-shaped, which can enhance the airflow generated by the first fan blades 433 to a greater extent; the guiding plate 434 can guide the airflow on the surface of the first spoke 432 to the first fan blade 433, and enhance the airflow generated by the first fan blade 433 again, thereby increasing the maximum air pressure of the plenum 413.
The outer wall of the valve body 461 of the pressure valve is provided with a first sealing ring 47, the outer wall of the spring seat 469 is provided with a second sealing ring 48, and the first sealing ring 47 and the second sealing ring 48 are made of rubber.
The addition of the first seal ring 47 can prevent the gas in the high-pressure space 413 from flowing into the low-pressure space 452 from the gap between the outer wall of the pressure valve body 461 and the slide 453, thereby improving the reliability of the device; the second seal ring 48 can reduce friction between the spring seat 469 and the slide 453, and improve the service life.
Example two
As a further improvement of the previous embodiment, as shown in fig. 1 to 9, the present embodiment is a device for preventing liquefaction of raw material pulverization, which includes a cylindrical housing 41, an air inlet 411 is formed at a rear end of the cylindrical housing 41, an air outlet 412 is formed at a front end of the cylindrical housing 41, a driving shaft 42 is further disposed inside the cylindrical housing 41, a first fan wheel 43 is disposed at a rear end of the driving shaft 42, a second fan wheel 44 is disposed at a front end of the driving shaft 42, an intermittent air injection mechanism 45 is further disposed between the first fan wheel 43 and the second fan wheel 44, and the intermittent air injection mechanism 45 is fixed on an inner wall of the cylindrical housing 41.
One end of the driving shaft 42 is externally connected with a power input device, which can be a motor, the power input device drives the driving shaft 42 to rotate, and simultaneously drives the first fan wheel 43 and the second fan wheel 44 to rotate and generate cooling airflow, the flow rate of the cooling airflow generated by the first fan wheel 43 is greater than that of the cooling airflow generated by the second fan wheel 44, so that the air pressure between the first fan wheel 43 and the second fan wheel 44 is greater than that of the air outlet 412, and an air pressure difference is generated; the intermittent air injection mechanism 45 works under the action of air pressure difference, and intermittently injects high-pressure cooling air flow to the air outlet 412.
The device can intermittently add high-pressure temperature-reduction airflow into the cooling airflow while continuously generating the cooling airflow to form mixed cooling airflow; the mixed cooling airflow can not only cool the grinding mechanism in the brown sugar processing flow, but also prevent the grinding mechanism from increasing the temperature due to grinding of the brown sugar for a long time, and further prevent the brown sugar from liquefying when contacting the grinding mechanism; meanwhile, the brown sugar powder can be prevented from being accumulated by the intermittent high-pressure cooling airflow.
The intermittent air injection mechanism 45 further comprises an annular inner shell 451, the outer circle side of the annular inner shell 451 is fixed on the inner wall of the cylindrical outer shell 41, the inner circle side of the annular inner shell 451 is rotatably connected with the driving shaft 42, the inner space of the annular inner shell 451 is a low-pressure space 452, the space between the outer part of the annular inner shell 451 and the cylindrical outer shell 41 is a high-pressure space 413, a hollow cylindrical slide 453 is arranged on the shell wall of the annular inner shell 451, and a pressure valve 46 is arranged inside the slide 453;
when the pressure valve 46 is pierced, the slide 453 pierces the low-pressure space 452 with the outside of the annular inner casing 451;
when the pressure valve 46 is closed, the low-pressure space 452 is sealed off from the outside of the annular inner shell 451;
the annular inner shell 451 is further provided with an air injection pipe 454, and the air injection pipe 454 penetrates the low-pressure space 452 and the air outlet 412.
When the pressure valve 46 is closed, the pressure in the high-pressure space 413 gradually rises, the pressure in the low-pressure space 452 remains unchanged, and the pressure difference between the two spaces causes the pressure valve 46 to have a tendency to open; when the pressure difference between the two spaces is greater than the critical pressure of the pressure valve 46, the pressure valve 46 is opened to allow the high-pressure space 413 and the low-pressure space 452 to communicate with each other, and the gas in the high-pressure space 413 flows into the low-pressure space 452 at a high speed to form a high-pressure cooling gas flow and is ejected from the gas outlet 412. After the gas in the high-pressure space 413 flows out, the pressure in the high-pressure space 413 is rapidly reduced, the pressure difference is smaller than the critical pressure of the pressure valve 46, the pressure valve 46 is closed and re-closed, and therefore a cycle is completed, the high-pressure temperature-reducing airflow can be intermittently added into the temperature-reducing airflow while the temperature-reducing airflow is continuously generated, and the mixed temperature-reducing airflow is formed.
The pressure valve 46 further comprises a pressure valve body 461, a valve core 462 and a spring 463, wherein the right end of the pressure valve body 461 is provided with a sliding groove 464, the valve core 462 is arranged in the sliding groove 464 and is connected with the sliding groove 464 in a sliding way, the left end of the spring 463 is fixedly connected with the valve core 462, and the right end of the spring 463 is connected with the inner wall of the annular inner shell 451;
the sliding chute 464 is fixed in the slide way 453, a flow-out hole 466 is formed in the wall of the sliding chute 464, and the flow-out hole 466 connects the inside of the sliding chute 464 with the low-pressure space 452 in a penetrating manner; an inflow hole 465 is formed in the center of the pressure valve body 461, and the inside of the sliding groove 464 is communicated with the left end of the slide 453 through the inflow hole 465;
when the spring 463 is in a free state, the valve element 462 blocks the inflow hole 465 and the outflow hole 466 simultaneously; when the spring 463 is in a compressed state, the inlet hole 465 and the outlet hole 466 are penetrated.
The elastic force of the spring 463 pushes the valve core 462 to simultaneously block the inflow hole 465 and the outflow hole 466, and the pressure difference acts on the valve core 462 to push the valve core 462 to move rightwards and compress the spring 463 until the inflow hole 465 and the outflow hole 466 are communicated; at this time, the gas in the high-pressure space 413 sequentially passes through the inflow hole 465 and the outflow hole 466 to enter the low-pressure space 452; thereby realizing intermittent high-pressure cooling airflow.
The pressure valve 46 further comprises an adjusting cylinder 467 and an adjusting telescopic rod 468, the adjusting cylinder 467 is fixed on the inner wall of the annular inner shell 451, one end of the adjusting telescopic rod 468 is arranged in the adjusting cylinder 467 and is in sliding connection with the adjusting cylinder 467, a spring seat 469 is arranged at the free end of the adjusting telescopic rod 468, and the right end of the spring 463 is fixed on the spring seat 469.
The adjusting cylinder 467 controls the adjusting telescopic rod 468 to extend out or retract back, so as to drive the spring seat 469 to move left and right, when the spring seat 469 is adjusted left, the compression degree of the spring 463 is improved, the critical pressure for opening the pressure valve 46 is improved, so that the maximum pressure difference is improved, and the flow rate of high-pressure cooling air flow is increased; on the contrary, when the spring seat 469 is adjusted to the right, the compression degree of the spring 463 is reduced, and the critical pressure for opening the pressure valve 46 is reduced, so that the maximum pressure difference is reduced, and the flow rate of the high-pressure cooling air flow is reduced; the effect of adjusting the flow rate of the high-pressure cooling air flow is achieved, so that the crushing mechanism is suitable for different operation conditions.
The second impeller 44 further includes a second hub 441, a second spoke 442 and a second vane 443, the second hub 441 is fixed on the driving shaft 42, the second vane 443 is annularly disposed along the circumference of the second spoke 442 at equal intervals, a plurality of spoke through holes 444 are disposed on the second spoke 442 and are distributed at equal intervals, and the right end of the spoke through hole 444 is connected to the gas injection pipe 454 in a penetrating manner.
During the continuous rotation process of the second impeller 44, the air outlet 412, the spoke through hole 444, the air injection pipe 454 and the low-pressure space 452 are always communicated and isolated from the high-pressure space 413; to ensure a pressure differential between the low pressure space 452 and the high pressure space 413.
The first impeller 43 further includes a first hub 431, a first spoke 432 and a first vane 433, the first hub 431 is fixed on the driving shaft 42, the first vane 433 is annularly arranged along the circumference of the first spoke 432 at equal intervals, the first vane 433 is in a shape of '7', and a plurality of circumferentially uniform guide vanes 434 are arranged on one side of the first spoke 432, which is close to the air inlet 411.
The distance between two adjacent first fan blades 433 is smaller than the distance between two adjacent second fan blades 443, so that the airflow generated by the first fan wheel 43 is always larger than the airflow generated by the second fan wheel 44 under the condition that the first fan wheel 43 and the second fan wheel 44 rotate at the same speed, and the high-pressure space 413 can be formed; the first fan blades 433 are 7-shaped, which can enhance the airflow generated by the first fan blades 433 to a greater extent; the guiding plate 434 can guide the airflow on the surface of the first spoke 432 to the first fan blade 433, and enhance the airflow generated by the first fan blade 433 again, thereby increasing the maximum air pressure of the plenum 413.
The outer wall of the valve body 461 of the pressure valve is provided with a first sealing ring 47, the outer wall of the spring seat 469 is provided with a second sealing ring 48, and the first sealing ring 47 and the second sealing ring 48 are made of rubber.
The addition of the first seal ring 47 can prevent the gas in the high-pressure space 413 from flowing into the low-pressure space 452 from the gap between the outer wall of the pressure valve body 461 and the slide 453, thereby improving the reliability of the device; the second seal ring 48 can reduce friction between the spring seat 469 and the slide 453, and improve the service life.
The cutting tool set 2 is arranged at the air outlet 412, and the cutting tool set 2 further comprises a cutting tool rotating shaft 23 and a plurality of fan-shaped blades 24 uniformly distributed on the cutting tool rotating shaft 23.
One end of the cutter rotating shaft 23 is connected with a driving motor, the driving motor drives the cutter rotating shaft 23 and the fan-shaped blades 24 to rotate, and the fan-shaped blades 24 crush the brown sugar; the mixed cooling air flow sprayed out of the air outlet 412 acts on the fan-shaped blade 24, and the fan-shaped blade 24 is prevented from crushing brown sugar for a long time to cause the temperature rise of the brown sugar, so that the brown sugar powder is prevented from being liquefied.
The inside cooling tube 232 that is equipped with of cutter pivot 23, it has several radial evenly distributed's cooling hole 233 to open on the cutter pivot 23, and several cooling hole 233 are above fan-shaped blade 24 and below, and every cooling hole 233 all link up with cooling tube 232, and cooling tube 232 outer end and gas outlet 412 link up.
The mixed cooling air flow is sprayed out of the air outlet 412 to the cooling pipe 232, the mixed cooling air flow is sprayed out of the cooling hole 233 to the upper surface and the lower surface of the fan-shaped blade 24, the upper surface and the lower surface of the fan-shaped blade 24 are cooled, the temperature rise of the upper surface and the lower surface of the fan-shaped blade 24 due to long-time brown sugar smashing is prevented, and the brown sugar is prevented from being liquefied when contacting the fan-shaped blade 24.
The advantages of the second embodiment over the first embodiment are:
in the device according to the second embodiment of the present invention, the mixed cooling air flow is ejected into the cooling pipe 232 through the air outlet 412, and the mixed cooling air flow is ejected from the cooling hole 233 toward the upper and lower surfaces of the fan-shaped blade 24 to cool the upper and lower surfaces of the fan-shaped blade 24, thereby preventing the upper and lower surfaces of the fan-shaped blade 24 from being heated due to long-term brown sugar pulverization, and further preventing the brown sugar from being liquefied when contacting the fan-shaped blade 24.
The use method of the anti-liquefaction device for crushing the raw material comprises the following steps:
s1, generating a continuous cooling airflow, wherein the driving shaft 42 drives the first impeller 43 and the second impeller 44 to rotate at the same time and generate a continuous cooling airflow;
s2, forming a pressure difference, wherein the flow rate of the cooling airflow generated by the first impeller 43 is greater than the flow rate of the cooling airflow generated by the second impeller 44, so that the air pressure between the first impeller 43 and the second impeller 44 is greater than the air pressure at the air outlet 412, thereby forming an air pressure difference;
s3, generating intermittent high-pressure cooling airflow, sealing the pressure valve 46, gradually increasing the pressure in the high-pressure space 413, keeping the pressure in the low-pressure space 452 unchanged, and enabling the pressure valve 46 to have an opening trend due to the pressure difference between the two spaces; after the pressure difference between the two spaces is greater than the critical pressure of the pressure valve 46, the pressure valve 46 is opened to enable the high-pressure space 413 to be communicated with the low-pressure space 452, and the gas in the high-pressure space 413 flows to the low-pressure space 452 at a high speed to form high-pressure cooling gas flow and is sprayed out from the gas outlet 412;
s4, adjusting the air pressure, adjusting the cylinder 467 control and adjusting the telescopic link 468 and stretch out or retract to drive the spring holder 469 side to side movement, adjust the spring 463 degree of compression, and then adjust the critical pressure of pressure valve 46, and then adjust the maximum pressure differential, realize adjusting the atmospheric pressure of intermittent type nature high pressure cooling air current.
According to the method, the first fan wheel 43 and the second fan wheel 44 are used for generating continuous cooling air flow, meanwhile, the air flow speed generated by the first fan wheel 43 and the air flow speed generated by the second fan wheel 44 are different, so that pressure difference is formed between the two fan wheels, the intermittent air injection mechanism 45 generates intermittent high-pressure cooling air flow by using the pressure difference, the two air flows are simultaneously sprayed out from the air outlet 412, the crushing mechanism in the brown sugar processing flow is cooled, and the brown sugar powder is prevented from being accumulated.
The foregoing is merely an example of the present invention, and common general knowledge in the field of known specific structures and characteristics is not described herein in any greater extent than that known in the art at the filing date or prior to the priority date of the application, so that those skilled in the art can now appreciate that all of the above-described techniques in this field and have the ability to apply routine experimentation before this date can be combined with one or more of the present teachings to complete and implement the present invention, and that certain typical known structures or known methods do not pose any impediments to the implementation of the present invention by those skilled in the art. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (10)
1. The utility model provides a raw materials is smashed and is used prevents liquefaction device which characterized in that: including cylindricality shell (41), the rear end of cylindricality shell (41) is air inlet (411), the front end of cylindricality shell (41) is gas outlet (412), the inside drive shaft (42) that still is equipped with of cylindricality shell (41), drive shaft (42) rear end is equipped with first flabellum (43), drive shaft (42) front end is equipped with second flabellum (44), still be equipped with intermittent type jet mechanism (45) between first flabellum (43) and second flabellum (44), intermittent type jet mechanism (45) are fixed on cylindricality shell (41) inner wall.
2. The raw material pulverization-use liquefaction prevention apparatus according to claim 1, characterized in that: the intermittent air injection mechanism (45) further comprises an annular inner shell (451), the outer circle side of the annular inner shell (451) is fixed on the inner wall of the cylindrical outer shell (41), the inner circle side of the annular inner shell (451) is rotatably connected with the driving shaft (42), the inner space of the annular inner shell (451) is a low-pressure space (452), the space between the outside of the annular inner shell (451) and the cylindrical outer shell (41) is a high-pressure space (413), a hollow cylindrical slide way (453) is arranged on the shell wall of the annular inner shell (451), and a pressure valve (46) is arranged inside the slide way (453);
when the pressure valve (46) is through, the slide (453) penetrates a low-pressure space (452) and the outside of the annular inner shell (451);
when the pressure valve (46) is closed, the low-pressure space (452) is sealed off from the outside of the annular inner shell (451);
the annular inner shell (451) is further provided with an air injection pipe (454), and the low-pressure space (452) is communicated with the air outlet (412) through the air injection pipe (454).
3. The raw material pulverization-use liquefaction prevention apparatus according to claim 2, characterized in that: the pressure valve (46) further comprises a pressure valve body (461), a valve core (462) and a spring (463), the right end of the pressure valve body (461) is provided with a sliding groove (464), the valve core (462) is arranged in the sliding groove (464) and is in sliding connection with the sliding groove, the left end of the spring (463) is fixedly connected with the valve core (462), and the right end of the spring (463) is connected with the inner wall of the annular inner shell (451);
the sliding chute (464) is fixed in the slide way (453), the wall of the sliding chute (464) is provided with an outflow hole (466), and the outflow hole (466) connects the inside of the sliding chute (464) with the low-pressure space (452) in a penetrating way; an inflow hole (465) is formed in the center of the pressure valve body (461), and the inside of the sliding groove (464) is communicated with the left end of the slide way (453) through the inflow hole (465);
when the spring (463) is in a free state, the valve core (462) blocks an inflow hole (465) and an outflow hole (466) simultaneously; when the spring (463) is in a compressed state, the inflow hole (465) and the outflow hole (466) are communicated.
4. The raw material pulverization-use liquefaction prevention apparatus according to claim 3, characterized in that: the pressure valve (46) further comprises an adjusting cylinder (467) and an adjusting telescopic rod (468), the adjusting cylinder (467) is fixed on the inner wall of the annular inner shell (451), one end of the adjusting telescopic rod (468) is arranged in the adjusting cylinder (467) and is in sliding connection with the adjusting cylinder (467), a spring seat (469) is arranged at the free end of the adjusting telescopic rod (468), and the right end of the spring (463) is fixed on the spring seat (469).
5. The raw material pulverization-use liquefaction prevention apparatus according to claim 4, characterized in that: the second impeller (44) comprises a second hub (441), second spokes (442) and second blades (443), the second hub (441) is fixed on the driving shaft (42), the second blades (443) are annularly arranged along the circumferential direction of the second spokes (442) at equal intervals, a plurality of spoke through holes (444) which are distributed at equal intervals are formed in the second spokes (442), and the right ends of the spoke through holes (444) are connected with the gas ejector pipes (454) in a penetrating manner.
6. The raw material pulverization-use liquefaction prevention apparatus according to claim 5, characterized in that: first flabellum (43) include first wheel hub (431), first spoke (432) and first flabellum (433) again, first wheel hub (431) are fixed on drive shaft (42), first flabellum (433) are established along the equidistant ring of circumference of first spoke (432), just first flabellum (433) are "7" style of calligraphy, first spoke (432) are close to being equipped with several and are the even water conservancy diversion piece (434) of circumference to air inlet (411) one side.
7. The raw material pulverization-use liquefaction prevention apparatus according to claim 6, characterized in that: the pressure valve is characterized in that a first sealing ring (47) is arranged on the outer wall of the pressure valve body (461), a second sealing ring (48) is arranged on the outer wall of the spring seat (469), and the first sealing ring (47) and the second sealing ring (48) are made of rubber.
8. The raw material pulverization-use liquefaction prevention apparatus according to claim 7, characterized in that: the cutting tool set comprises a cutting tool rotating shaft (23) and a plurality of fan-shaped blades (24) which are uniformly distributed on the cutting tool rotating shaft (23), and the cutting tool set (2) is arranged at the air outlet (412).
9. The raw material pulverization-use liquefaction prevention apparatus according to claim 8, characterized in that: cutter pivot (23) inside cooling tube (232) of being equipped with, it has several radial evenly distributed's cooling hole (233), several to open on cutter pivot (23) cooling hole (233) in fan-shaped blade (24) top and below, and every cooling hole (233) all with cooling tube (232) through connection, cooling tube (232) outer end and gas outlet (412) through connection.
10. The method of using the liquefaction prevention apparatus for pulverization of raw material as set forth in claim 9, comprising the steps of:
s1, generating a continuous cooling air flow, wherein the driving shaft (42) drives the first fan wheel (43) and the second fan wheel (44) to rotate simultaneously and generate the continuous cooling air flow;
s2, forming a pressure difference, wherein the flow speed of the cooling air flow generated by the first fan wheel (43) is greater than that of the cooling air flow generated by the second fan wheel (44), so that the air pressure between the first fan wheel (43) and the second fan wheel (44) is greater than that of the air outlet (412), and forming an air pressure difference;
s3, generating intermittent high-pressure cooling airflow, wherein the pressure valve (46) is closed, the pressure in the high-pressure space (413) is gradually increased, the pressure in the low-pressure space (452) is kept constant, and the pressure difference between the two spaces enables the pressure valve (46) to have a tendency of opening; after the pressure difference between the two spaces is greater than the critical pressure of the pressure valve (46), the pressure valve (46) is opened to enable the high-pressure space (413) to be communicated with the low-pressure space (452), and the gas in the high-pressure space (413) flows to the low-pressure space (452) at a high speed to form high-pressure cooling gas flow and is sprayed out from the gas outlet (412);
s4, adjusting the air flow pressure, wherein the adjusting cylinder (467) controls the adjusting telescopic rod (468) to extend out or retract, so that the spring seat (469) is driven to move left and right, the compression degree of the spring (463) is adjusted, the critical pressure of the pressure valve (46) is adjusted, the maximum pressure difference is adjusted, and the adjustment of the air pressure of intermittent high-pressure cooling air flow is realized.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115404428A (en) * | 2022-11-02 | 2022-11-29 | 华北理工大学 | Observation window of closed galvanized heating furnace |
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