Horizontal low-temperature vortex crusher

Abstract

The utility model discloses a horizontal low-temperature vortex crusher, and belongs to the technical field of crushers. Comprising a crushing roller capable of rotating in the horizontal direction, an inner tooth shell is arranged on the radial outer periphery of the crushing roller, and a crushing gap used for passing of materials is reserved between the inner tooth shell and the crushing roller; the peripheries of the crushing roller and the inner tooth shell are coated with a sealing shell, a water cooling circulation cavity is defined between the sealing shell and the inner tooth shell, and a feeding cavity and a discharging cavity which are communicated with the two ends of the crushing gap respectively are defined between the sealing shell and the crushing roller and between the sealing shell and the inner tooth shell; a feeding pipe fitting tangent to the feeding cavity and a discharging pipe tangent to the discharging cavity are arranged on the sealing shell; the horizontal low-temperature vortex crusher disclosed by the utility model is good in crushing effect, and materials can be crushed in a low-temperature environment in a water-cooling heat dissipation manner.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the pulverizer, especially to a horizontal low temperature vortex pulverizer. BACKGROUND

[0002] In many industrial fields, such as pharmaceutical, chemical, food, etc., there are special requirements for the pulverization of some temperature-sensitive materials.

[0003] In the pulverization process of the traditional pulverizer, a large amount of heat is generated due to the friction and collision between the pulverizing cutter and the material, which may change the properties of the material and make it difficult to meet the pulverization requirements. At the same time, when the traditional pulverizer pulverizes the material, the pulverization trajectory of the material is relatively chaotic, and the residence time of the material in the pulverization chamber is relatively short. Some materials are discharged before being completely removed, resulting in unsatisfactory pulverization effect. SUMMARY

[0004] The utility model aims at overcoming the defects in the prior art, providing a horizontal low temperature vortex pulverizer, which has good pulverization effect and can pulverize the material in a low temperature environment through water cooling.

[0005] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of a horizontal low temperature vortex pulverizer, which comprises a pulverizing roller capable of rotating in the horizontal direction, an inner tooth shell is arranged around the outer periphery of the pulverizing roller, and a pulverization gap for the passage of the material is reserved between the inner tooth shell and the pulverizing roller.

[0006] Among them, the outer periphery of the pulverizing roller and the inner tooth shell is covered with a sealing shell, a water cooling circulation cavity is formed between the sealing shell and the inner tooth shell, and an inlet chamber and an outlet chamber respectively communicating with the two ends of the pulverization gap are formed between the sealing shell and the pulverizing roller and the inner tooth shell.

[0007] The sealing shell is provided with an inlet pipe connected with the inlet chamber and an outlet pipe connected with the outlet chamber.

[0008] Optionally, the pulverizing roller comprises a pulverizing shaft rotatably connected to the sealing shell, and a plurality of pulverizing wheels sleeved on the pulverizing shaft, the outer peripheral sidewall of the pulverizing wheel and the inner peripheral sidewall of the inner tooth shell are both provided with a plurality of tooth grooves arranged uniformly at intervals, and the tooth grooves on adjacent two pulverizing wheels are arranged in staggered positions.

[0009] Optionally, the inlet pipe comprises an air pipe connected to the sealing shell and a material pipe connected to the air pipe, the material pipe is connected to a spiral feeder through a star-shaped feeding valve, and the air pipe can introduce positive pressure gas.

[0010] Optionally, the sealing shell comprises a first shell fixed on the rack and a second shell flipped to be in butt joint with the first shell;

[0011] The inner tooth shell comprises a first arc-shaped inner tooth plate and a second arc-shaped inner tooth plate.

[0012] The first arc-shaped inner tooth plate and the second arc-shaped inner tooth plate are arranged on the first shell and the second shell respectively, and the first shell and the first arc-shaped inner tooth plate and the second shell and the second arc-shaped inner tooth plate form independent water cooling chambers capable of circumscribing the water source.

[0013] Optionally, the first shell and the second shell are respectively provided with water inlet joints and water outlet joints in communication with the independent water cooling chambers.

[0014] Optionally, one end of the crushing roller is driven and connected to the torque motor through a transmission belt.

[0015] Optionally, a temperature sensor is arranged in each independent water cooling chamber.

[0016] Optionally, the positive pressure gas is nitrogen.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] (1) The material can enter the feeding cavity through the feeding pipe in the mode of negative pressure conveying, positive pressure conveying or vacuum conveying, and the movement path of the material is continuous spiral after entering the feeding cavity, which rotates forward to the crushing gap around the central axis of the feeding cavity. At the same time, the material is crushed into small particles under the driving of the airflow and the high-speed rotation of the crushing roller, and can enter the discharging cavity after crushing and be discharged from the discharging pipe. The material forms a unique spiral flow movement form under the driving of the airflow and the crushing roller during the movement, which can effectively increase the moving distance and residence time of the material in the crushing gap, thereby effectively increasing the crushing effect of the material. The water cooling circulation cavity formed between the sealing shell and the inner tooth shell can effectively reduce the temperature of the inner tooth shell after the water or cooling liquid with low temperature is input, thereby quickly reducing the temperature in the crushing gap, so that the material can be crushed in a low-temperature environment, which meets the crushing requirements of part of the material.

[0019] (2) The sealing shell and the inner tooth shell adopt a split structure design, the second shell on the first shell can be flipped to one side, so that the crushing roller is exposed in the field of view, which is convenient for the maintenance personnel to observe the wear degree of the tooth groove and facilitates the daily maintenance and maintenance of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model is further explained below in combination with the drawings and embodiments.

[0021] Figure 1 Is the structure schematic diagram of horizontal low temperature vortex pulverizer in the preferred embodiment of the utility model,

[0022] Figure 2 Is the side view structure schematic diagram of horizontal low temperature vortex pulverizer in the preferred embodiment of the utility model,

[0023] Figure 3 Is the preferred embodiment of the utility model, Figure 2 The section structure schematic diagram at B,

[0024] Wherein, 1, inner tooth shell;101, pulverization gap;102, water cooling circulation cavity;103, feeding cavity;104, discharging cavity;2, pulverizing roller;201, pulverizing shaft;202, pulverizing wheel;3, sealing shell;301, first shell;302, second shell;4, discharging pipe;5, air pipe;6, material pipe;7, star type feeding valve;8, spiral feeder;9, rack;10, water inlet joint;11, water outlet joint;12, torque motor. Specific implementation

[0025] The utility model will be explained in further detail in combination with the drawings and embodiments, these drawings are all simplified schematic diagram, only with the schematic way the basic structure of the utility model is explained, therefore it only shows the constitution related with the utility model.

[0026] Need to explain, if the embodiment in this embodiment has the directional indication (such as upper, lower, bottom, top etc.), then the directional indication is only used to explain the relative position relationship, movement condition etc. between the components in a certain specific posture, if the specific posture changes, then the directional indication also changes accordingly. The term "first", "second" is only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly include one or more features. Unless otherwise specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, can be detachably connected, or integrally connected;It can be directly connected, or indirectly connected through an intermediate medium, and can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. Example one

[0027] As Figures 1-3As shown, a horizontal low-temperature vortex pulverizer includes a pulverizing roller 2 capable of rotating in a horizontal direction, a inner tooth shell 1 is provided on the radial outer periphery of the pulverizing roller 2, and a pulverizing gap 101 for material passing is reserved between the inner tooth shell 1 and the pulverizing roller 2; wherein the outer periphery of the pulverizing roller 2 and the inner tooth shell 1 is covered with a sealing shell 3, a water cooling circulation cavity 102 is formed between the sealing shell 3 and the inner tooth shell 1, and the sealing shell 3 and the pulverizing roller 2, the inner tooth shell 1 are surrounded to form a feeding chamber 103 and a discharging chamber 104 respectively communicated with both ends of the pulverizing gap 101; the sealing shell 3 is provided with a feeding pipe tangential to the feeding chamber 103, and is provided with a discharging pipe 4 tangential to the discharging chamber 104.

[0028] Specifically, the material can enter the feeding chamber 103 through the feeding pipe in the form of negative pressure conveying, positive pressure conveying or vacuum conveying, and after entering the feeding chamber 103, the movement path of the material is continuous spiral, like a spiral line rotating forward to the pulverizing gap 101 around the center axis of the feeding chamber 103. At the same time, one end of the pulverizing roller 2 is driven and connected to the torque motor 12 through the transmission belt, and the torque motor 12 can drive the pulverizing shaft 201 to rotate at high speed, and the material will be pulverized into smaller particles under the high-speed rotation of the pulverizing roller 2, and can enter the discharging chamber 104 after completing the pulverization, and be discharged from the discharging pipe 4. And the material will form a unique spiral flow motion form under the driving of the airflow and the pulverizing roller 2 during the movement, which can effectively increase the moving distance and residence time of the material in the pulverizing gap 101, thereby effectively increasing the pulverizing effect of the material. At the same time, in the technical solution, the water cooling circulation cavity 102 formed between the sealing shell 3 and the inner tooth shell 1 can effectively reduce the temperature of the inner tooth shell 1 after the temperature of the water or cooling liquid is lower, thereby quickly reducing the temperature in the pulverizing gap 101, so that the material can be pulverized in a low-temperature environment, meeting the pulverizing requirements of part of the material.

[0029] In order to further increase the pulverizing effect of the material, as shown Figure 3 As shown, the pulverizing roller 2 includes a pulverizing shaft 201 rotatably connected to the sealing shell 3, and a plurality of pulverizing wheels 202 sleeved on the pulverizing shaft 201, the outer peripheral side wall of the pulverizing wheel 202 and the inner peripheral side wall of the inner tooth shell 1 are both provided with a plurality of tooth grooves arranged uniformly, the tooth grooves on the adjacent two pulverizing wheels 202 are arranged in staggered manner, the gap for material passing between the adjacent two pulverizing wheels 202 will be reduced due to the staggered tooth grooves, and the contact surface between the adjacent two pulverizing wheels 202 can divide the pulverizing gap 101, thereby dividing the pulverizing gap 101 into a plurality of pulverizing intervals, and the passing speed of the material will be greatly reduced when passing through the pulverizing interval, thereby increasing the time of the material staying in each pulverizing interval, and the material can be completely pulverized.

[0030] Further, the technical solution preferably uses positive pressure conveying, specifically asFigure 1 As shown, the feeding pipe comprises an air pipe 5 connected to the sealing shell 3, and a material pipe 6 connected to the air pipe 5, the air pipe 5 is capable of passing positive pressure gas for conveying material into the feeding cavity 103. Meanwhile, the material pipe 6 is connected to a screw feeder 8 through a star-shaped feeding valve 7, both of which are material conveying devices in the prior art, capable of stably and continuously conveying material into the air pipe 5 through the material pipe 6.

[0031] As mentioned above, the positive pressure gas can be selected from inert gases such as helium, neon, argon, krypton, xenon and radon, or nitrogen which can be used as an inert gas, etc., for protecting the chemical state of the material. Preferably, the positive pressure gas is nitrogen. The specific heat capacity of nitrogen is relatively large, and during the material crushing process, nitrogen can quickly absorb the heat generated during the crushing of the material, and due to its large specific heat capacity, it can to some extent alleviate the rapid rise in temperature, thereby reducing the ambient temperature of the material crushing. Example Two

[0032] As shown in Figures 1-3 Based on example one, the sealing shell 3 comprises a first shell 301 fixed to the rack 9 and a second shell 302 flipped to be in contact with the first shell 301; the inner tooth shell 1 comprises a first arc-shaped inner tooth plate and a second arc-shaped inner tooth plate; the first arc-shaped inner tooth plate and the second arc-shaped inner tooth plate are respectively arranged on the first shell 301 and the second shell 302, and the first shell 301 and the first arc-shaped inner tooth plate, and the second shell 302 and the second arc-shaped inner tooth plate are arranged to form an independent water cooling chamber capable of circumscribing a water source.

[0033] The sealing shell 3 and the inner tooth shell 1 adopt a split structure design, which can facilitate daily maintenance and maintenance of the equipment. The first shell 301 and the second shell 302 can be fixed by bolts and other fasteners, and the air tightness of the butt joint can be increased by rubber gaskets and other sealing elements, as shown in Figure 1 As shown in

[0034] Further, the first shell 301 and the second shell 302 are respectively provided with water inlets 10 and water outlets 11 communicated with the independent water cooling chambers, the water inlets 10 are used for inputting water or cooling liquid with low temperature into the independent water cooling chambers, and the water or cooling liquid can be discharged from the water outlets 11 after circulating in the independent water cooling chambers, so that the surface layers of the first arc-shaped inner tooth plate and the second arc-shaped inner tooth plate are maintained at constant temperature, and the stability of the environment during the material crushing is ensured.

[0035] Working principle: one end of the air pipe 5 is connected with positive pressure nitrogen, the star-shaped feeding valve and the screw feeder 8 stably and continuously feed the material into the air pipe 5 through the material pipe 6, and the torque motor 12 drives the crushing shaft 201 to rotate at high speed. After the positive pressure nitrogen and the material enter the feeding chamber 103, the movement path of the material is continuous spiral, and the material rotates around the central axis of the feeding chamber 103 to the crushing gap 101, and the material is crushed into small particles under the high-speed rotation of the crushing roller 2. In the process, the material and the nitrogen gas form a unique spiral flow movement form under the driving of the crushing roller 2, and the material passes through the crushing area, and the tooth grooves on the adjacent two crushing wheels 202 are misaligned, so that the material passing speed is reduced, the moving distance and the residence time of the material in the crushing gap 101 are increased, and the crushing effect of the material is improved.

[0036] In the process of material crushing, the water inlets 10 input water or cooling liquid with low temperature into the independent water cooling chambers, and the water or cooling liquid is discharged from the water outlets 11 after circulating in the independent water cooling chambers, so that the temperature of the contact surface between the first arc-shaped inner tooth shell 1 and the second arc-shaped inner tooth shell 1 and the material is reduced, a certain amount of heat is taken away, and the temperature of the environment where the crushing gap 101 is located is maintained within a certain range, so as to meet the temperature requirement of the material for the crushing environment.

[0037] According to the ideal embodiment of the utility model, the above description, relevant personnel can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A horizontal cryogenic jet mill, characterized by: The application relates to a shredding device, which comprises a shredding roller (2) capable of rotating in a horizontal direction, a inner tooth shell (1) arranged on the radial outer periphery of the shredding roller (2), and a shredding gap (101) reserved between the shredding roller (2) and the inner tooth shell (1) for material passing; Wherein, the outer periphery of the shredding roller (2) and the inner tooth shell (1) is covered with a sealing shell (3), a water-cooling circulation cavity (102) is formed between the sealing shell (3) and the inner tooth shell (1), and a feeding cavity (103) and a discharging cavity (104) are formed between the sealing shell (3), the shredding roller (2) and the inner tooth shell (1) and are respectively communicated with two ends of the shredding gap (101). A feeding pipe is arranged on the sealing shell (3) and is tangent to the feeding cavity (103), and a discharging pipe (4) is arranged on the sealing shell (3) and is tangent to the discharging cavity (104).

2. The horizontal cryogenic fluid energy mill of claim 1, wherein: The shredding roller (2) comprises a shredding shaft (201) rotatably connected to the sealing shell (3) and a plurality of shredding wheels (202) sleeved on the shredding shaft (201), the outer peripheral sidewall of the shredding wheel (202) and the inner peripheral sidewall of the inner tooth shell (1) are both provided with a plurality of tooth grooves arranged at equal intervals, and the tooth grooves on adjacent two shredding wheels (202) are arranged in a staggered mode.

3. The horizontal low-temperature vortex mill according to claim 1, characterized in that: The feeding pipe comprises an air pipe (5) connected to the sealing shell (3) and a material pipe (6) connected to the air pipe (5), the material pipe (6) is connected to a spiral feeder (8) through a star-shaped feeding valve (7), and the air pipe (5) can be connected to a positive pressure gas.

4. The horizontal cryogenic fluid energy mill of claim 1, wherein: The sealing shell (3) comprises a first shell (301) fixed to a rack (9) and a second shell (302) reversely connected to the first shell (301). The inner tooth shell (1) comprises a first arc-shaped inner tooth plate and a second arc-shaped inner tooth plate. The first arc-shaped inner tooth plate and the second arc-shaped inner tooth plate are arranged on the first shell (301) and the second shell (302) respectively, and an independent water cooling chamber capable of being circumscribed with a water source is formed between the first shell (301) and the first arc-shaped inner tooth plate and between the second shell (302) and the second arc-shaped inner tooth plate.

5. A horizontal cryogenic fluid energy mill as claimed in claim 4, wherein: Water inlets (10) and water outlets (11) are arranged on the first shell (301) and the second shell (302) respectively and are communicated with the independent water cooling chambers.

6. The horizontal cryogenic fluid energy mill of claim 1, wherein: One end of the shredding roller (2) is connected to a torque motor (12) through a transmission belt.

7. The horizontal cryogenic fluid energy mill of claim 4, wherein: Temperature sensors are arranged in each independent water cooling chamber.

8. The horizontal cryogenic fluid energy mill of claim 3, wherein: The positive pressure gas is nitrogen.

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