A type of crusher

Abstract

This utility model belongs to the field of pulverizer technology, and in particular to a pulverizer, including a base, a dust collection bag installed in the middle of the base, a filter and a fan installed on one side of the base, a feeding hopper and a pulverizer installed on the other side of the base, and a controller installed on the other side of the base. This utility model monitors the pressure of a pair of dust collection bags in real time using a pulverizing pressure transmitter, and through the setting of a U-shaped air pipe, a dynamic pressure balance is formed between the feeding system and the inside of the pulverizer cavity, effectively suppressing the backflow phenomenon of materials at the feed inlet under the action of high-speed airflow. Simultaneously, the negative pressure airflow generated by the fan not only serves as a carrier for material transportation, but also actively carries away the large amount of heat generated by high-speed collisions and friction between particles during the transportation process, forming an efficient heat dissipation channel. This prevents heat-sensitive materials or low-melting-point materials from melting, adhering, or even changing their properties due to localized overheating during the pulverization process.

Description

Technical Field

[0001] This utility model relates to the field of pulverizer technology, specifically to a pulverizer. Background Technology

[0002] Airflow mills are key equipment for producing ultrafine powder materials. They utilize the energy of high-speed airflow to pulverize material particles through collision and friction. Traditional mills often experience pressure imbalances between the feeding system and the grinding chamber during operation, leading to material backflow at the feed inlet and affecting the continuity and stability of production. Furthermore, for heat-sensitive or low-melting-point materials, the heat generated during grinding can cause material denaturation. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a pulverizer that solves the problem of material backflow at the feed inlet caused by pressure imbalance between the feeding system and the pulverizing chamber during operation, affecting the continuity and stability of production. Furthermore, for heat-sensitive or low-melting-point materials, the heat generated during pulverization may cause material denaturation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a crusher, comprising a base, a dust collection bag installed in the middle of the base, a filter and a fan installed on one side of the base, a feeding hopper and a crusher installed on the other side of the base, a controller installed on the other side of the base, a cylinder installed in the middle of the dust collection bag, a bag shaking bracket fixedly connected to the output end of the cylinder, the output end of the fan connected to the input end of the filter, a tail gas exhaust pipe fixedly connected to the output end of the filter, one end of the tail gas exhaust pipe fixedly connected to the upper part of one side of the dust collection bag, a main unit discharge pipe fixedly connected to the output end of the crusher, one end of the main unit discharge pipe fixedly connected to the middle of the other side of the dust collection bag, the discharge port of the feeding hopper connected to the input end of the crusher, a pressure transmitter installed in the middle of the outer wall of the dust collection bag, a U-shaped air pipe fixedly connected to the output end of the crusher, and a vibrator installed in the lower part of the outer wall of the dust collection bag.

[0005] As a preferred embodiment of this utility model, a balancing pipe is fixedly connected to one end of the feeding bin, a pipe filter is installed on one side of the balancing pipe, a breather is fixedly connected to one side of the upper surface of the feeding bin, and a vibrator is installed on the lower part of the outer wall of the feeding bin.

[0006] As a preferred embodiment of this utility model, a manual ball valve is installed on one side of the middle section of the U-shaped air pipe, a twin-screw feeder is installed on one side of the manual ball valve, the output end of the twin-screw feeder is fixedly connected to a feed air pipe, one end of the feed air pipe is connected to the U-shaped air pipe, a main air source valve is installed on one side of the outer wall of the U-shaped air pipe, and a pressure transmitter is installed on the other side of the outer wall of the U-shaped air pipe.

[0007] As a preferred embodiment of this utility model, a pressure reducing valve is installed on one side of the manual ball valve, a vibrator is fixedly connected to one end of the pressure reducing valve, a pressure transmitter is installed at the lower part of the feed air pipe, and a manual diaphragm valve is fixedly connected to the outer wall of the feed air pipe.

[0008] As a preferred embodiment of this utility model, the outer wall of the U-shaped trachea is provided with a pulverizing trachea.

[0009] As a preferred embodiment of this utility model, a buffer tube is fixedly connected to the bottom of the dust collection bag.

[0010] As a preferred embodiment of this utility model, a differential pressure transmitter is installed on the upper surface of the filter, a filter element is installed inside the filter, the filter is connected to the fan through a connecting pipe, and a system valve is installed on the outer wall of the connecting pipe.

[0011] As a preferred embodiment of this utility model, a sight glass is installed on the discharge pipe of the feeding hopper, and a drain outlet is provided in the middle of one side of the dust removal bag.

[0012] Compared with the prior art, the present invention provides a pulverizer with the following advantages: This type of pulverizer monitors the pressure of a pair of dust collection bags in real time via a pulverizing pressure transmitter. Through the installation of a U-shaped air pipe, a dynamic pressure balance is achieved between the feeding system and the pulverizer chamber. This effectively suppresses backflow of materials at the feed inlet under high-speed airflow, ensuring continuous feeding and stable production. Simultaneously, the negative pressure airflow generated by the fan not only serves as a material transport carrier but also actively removes a large amount of heat generated by high-speed collisions and friction between particles during transport, forming an efficient heat dissipation channel. This prevents heat-sensitive or low-melting-point materials from melting, adhering, or even changing their properties due to localized overheating during pulverization, thus preserving the original characteristics of the materials. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the present invention.

[0014] In the diagram: 1. Base; 2. Dust bag; 3. Filter; 4. Feeding hopper; 5. Crusher; 6. Controller; 7. Cylinder; 8. Shaking bag support; 9. Pressure transmitter one; 10. Vibrator one; 11. Main unit discharge pipe; 12. Pipeline filter; 13. Balancing pipe; 14. Breather; 15. Vibrator two; 16. Manual ball valve; 17. Twin screw feeder; 18. Pressure reducing valve; 19. U-shaped air pipe; 20. Main air source valve; 21. Vibrator three; 22. Crushing air pipe; 23. Pressure transmitter two; 24. Manual diaphragm valve; 25. Feed air pipe; 26. Pressure transmitter three; 27. Sight glass; 28. Exhaust pipe; 29. ​​Buffer pipe; 30. Differential pressure transmitter; 31. Fan; 32. Connecting pipe; 33. System valve; 34. Filter element; 35. Drain outlet. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Example 1 Please see Figure 1 In this embodiment: a crusher includes a base 1, characterized in that: a dust bag 2 is installed in the middle of the base 1, a filter 3 and a fan 31 are installed on one side of the base 1, a feeding bin 4 and a crusher 5 are installed on the other side of the base 1, a controller 6 is installed on the other side of the base 1, a cylinder 7 is installed in the middle of the dust bag 2, a bag shaking bracket 8 is fixedly connected to the output end of the cylinder 7, the output end of the fan 31 is connected to the input end of the filter 3, a tail gas exhaust pipe 28 is fixedly connected to the output end of the filter 3, one end of the tail gas exhaust pipe 28 is fixedly connected to the upper part of one side of the dust bag 2, a main machine discharge pipe 11 is fixedly connected to the output end of the crusher 5, one end of the main machine discharge pipe 11 is fixedly connected to the middle of the other side of the dust bag 2, the discharge port of the feeding bin 4 is connected to the input end of the crusher 5, a pressure transmitter 9 is installed in the middle of the outer wall of the dust bag 2, a U-shaped air pipe 19 is fixedly connected to the output end of the crusher 5, and a vibrator 10 is installed in the lower part of the outer wall of the dust bag 2; In this embodiment, the material is first added to the feeding hopper 4 so that it can smoothly enter the crusher 5. The vibrator 10 at the bottom of the dust bag 2 can assist the material discharge and prevent accumulation. The dust and gas are initially separated in the dust bag 2. In order to maintain the filtration efficiency of the dust bag 2, the cylinder 7 installed in the middle of the dust bag 2 will drive the bag shaking bracket 8 to reciprocate, shaking off the dust attached to the filter bag and letting it fall to the bottom for collection. The pressure transmitter 9 is used to monitor the pressure difference inside and outside the dust bag and determine whether it needs to be cleaned.

[0017] Furthermore, a balance pipe 13 is fixedly connected to one end of the feeding bin 4, a pipe filter 12 is installed on one side of the balance pipe 13, a breather 14 is fixedly connected to one side of the upper surface of the feeding bin 4, and a vibrator 15 is installed on the lower part of the outer wall of the feeding bin 4. Among them, by activating vibrator 2 15, high-frequency vibration is used to prevent material from arching or clogging. In order to maintain the pressure balance inside the device, a breather 14 and a balance pipe 13 with a pipe filter 12 are installed on the feeding hopper 4 to ensure the stability and safety of the feeding process.

[0018] Furthermore, a manual ball valve 16 is installed on one side of the middle section of the U-shaped air pipe 19, and a twin screw feeder 17 is installed on one side of the manual ball valve 16. The output end of the twin screw feeder 17 is fixedly connected to the feed air pipe 25. One end of the feed air pipe 25 is connected to the U-shaped air pipe 19. A main air source valve 20 is installed on one side of the outer wall of the U-shaped air pipe 19, and a pressure transmitter 23 is installed on the other side of the outer wall of the U-shaped air pipe 19. The material is precisely and evenly fed into the feed pipe 25 via the twin-screw feeder 17, and finally enters the U-shaped air pipe 19. After mixing with the high-pressure gas, it enters the pulverizer. This process is controlled and regulated by valves such as the manual ball valve 16, pressure reducing valve 18, and manual diaphragm valve 24. The external air source enters the U-shaped air pipe 19 through the main air source valve 20. The gas is accelerated to supersonic speed under the action of the pulverizing air pipe 22, forming a high-energy airflow. After the material enters the pulverizing chamber of the pulverizer 5 from the twin-screw feeder 17, it encounters these high-speed airflows. Driven by the high-speed airflow, the material particles collide, rub, and shear violently with each other and with the chamber wall, thereby being pulverized into micron-level or even submicron-level ultrafine powder in a very short time. The gas pressure during the entire pulverizing process is monitored in real time by pressure transmitters 23 and 26 to ensure the best pulverizing effect.

[0019] Preferably, a pressure reducing valve 18 is installed on one side of the manual ball valve 16, a vibrator 21 is fixedly connected to one end of the pressure reducing valve 18, a pressure transmitter 26 is installed at the lower part of the feed air pipe 25, and a manual diaphragm valve 24 is fixedly connected to the outer wall of the feed air pipe 25.

[0020] Preferably, the outer wall of the U-shaped trachea 19 is provided with a pulverizing trachea 22.

[0021] Preferably, a buffer tube 29 is fixedly connected to the bottom of the dust bag 2; Inside the dust collection bag 2, due to the sudden increase in space, the airflow speed decreases significantly, and the carrying capacity weakens. Heavier material powder settles to the bottom of the dust collection bag 2 due to gravity, while extremely fine dust is attached to the inner surface of the dust collection bag 2. The collected finished product is finally discharged through the buffer pipe 29 at the bottom.

[0022] Furthermore, a differential pressure transmitter 30 is installed on the upper surface of the filter 3, a filter element 34 is installed inside the filter 3, the filter 3 is connected to the fan 31 through a connecting pipe 32, and a system valve 33 is installed on the outer wall of the connecting pipe 32. Even after being filtered by the dust collector bag, the gas may still contain a small amount of ultrafine dust. This gas is further drawn in by the fan 31 and enters the filter 3 through the exhaust pipe 28. Inside the filter 3, the filter element 34 performs a secondary fine filtration, capturing the remaining tiny particles. The differential pressure transmitter 30 monitors the pressure difference across the filter element in real time. When the pressure difference is too large, it indicates that the filter element may be clogged, prompting maintenance or replacement. Finally, the clean gas, after two stages of filtration, is discharged from the system through the fan 31.

[0023] Preferably, a sight glass 27 is installed on the discharge pipe of the feeding hopper 4, and a drain outlet 35 is provided in the middle of one side of the dust bag 2; The sight glass 27 installed on the feeding hopper 4 allows operators to observe the flow of materials in real time.

[0024] The working principle and usage process of this utility model are as follows: Material is first added to the feeding hopper 4 to ensure smooth entry into the crusher 5. Vibrator 2 15 is activated, using high-frequency vibration to prevent material arching or blockage. A sight glass 27 installed on the feeding hopper 4 allows the operator to observe the material flow in real time. Simultaneously, to maintain pressure balance within the device, a breather 14 and a balance pipe 13 with a pipe filter 12 are installed on the feeding hopper 4 to ensure the stability and safety of the feeding process. Furthermore, the twin-screw feeder 17 allows for precise material feeding. The gas is evenly fed into the feed pipe 25 and finally enters the U-shaped gas pipe 19. After mixing with the high-pressure gas, it enters the pulverizer. This process is controlled and regulated by valves such as the manual ball valve 16, pressure reducing valve 18, and manual diaphragm valve 24. The external gas source enters the U-shaped gas pipe 19 through the main gas source valve 20. Under the action of the pulverizing gas pipe 22, the gas is accelerated to supersonic speed, forming a high-energy airflow. After the material enters the pulverizing chamber of the pulverizer 5 from the twin-screw feeder 17, it encounters these high-speed airflows. Driven by the high-speed airflow, violent collisions occur between the material particles and between the material and the chamber wall. Friction and shearing cause the material to be pulverized into micron- or even submicron-sized ultrafine powder in a very short time. The gas pressure throughout the pulverization process is monitored in real time by pressure transmitters 23 and 26 to ensure optimal pulverization. Inside the dust collector bag 2, due to the sudden increase in space, the airflow velocity decreases significantly, reducing its carrying capacity. Heavier material powder settles to the bottom of the dust collector bag 2 due to gravity, while extremely fine dust adheres to the inner surface of the dust collector bag 2. The collected finished product is finally discharged through the buffer pipe 29 at the bottom. The vibration at the bottom of the dust collector bag 2... The actuator 10 assists in the discharge of materials and prevents accumulation. Dust and gas undergo initial separation within the dust collector bag 2. To maintain the filtration efficiency of the dust collector bag 2, the cylinder 7 installed in the middle of the dust collector bag 2 drives the bag-shaking bracket 8 to reciprocate, shaking off the dust adhering to the filter bag and allowing it to fall to the bottom for collection. The pressure transmitter 9 monitors the pressure difference inside and outside the dust collector bag to determine whether cleaning is necessary. The gas filtered by the dust collector bag may still contain a small amount of ultrafine dust. This gas is further drawn by the fan 31 and enters the filter 3 through the exhaust pipe 28. Inside the filter 3, the filter element 34 performs secondary fine filtration of the gas, capturing the remaining tiny particles. The differential pressure transmitter 30 monitors the pressure difference across the filter element in real time. When the pressure difference is too large, it indicates that the filter element may be clogged, prompting maintenance or replacement. Finally, the clean gas that has undergone two stages of filtration is discharged from the system through the fan 31.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A shredder comprising a base (1), characterised in that: A dust bag (2) is installed in the middle of the base (1). A filter (3) and a fan (31) are installed on one side of the base (1). A feeding hopper (4) and a crusher (5) are installed on the other side of the base (1). A controller (6) is installed on the other side of the base (1). A cylinder (7) is installed in the middle of the dust bag (2). A bag shaking bracket (8) is fixedly connected to the output end of the cylinder (7). The output end of the fan (31) is connected to the input end of the filter (3). An exhaust pipe (28) is fixedly connected to the output end of the filter (3). One end of the exhaust pipe (28) is fixedly connected to the upper side of the dust collection bag (2). The output end of the crusher (5) is fixedly connected to the main discharge pipe (11). One end of the main discharge pipe (11) is fixedly connected to the middle of the other side of the dust collection bag (2). The discharge port of the feeding bin (4) is connected to the input end of the crusher (5). A pressure transmitter (9) is installed in the middle of the outer wall of the dust collection bag (2). A U-shaped air pipe (19) is fixedly connected to the output end of the crusher (5). A vibrator (10) is installed in the lower part of the outer wall of the dust collection bag (2).

2. A comminutor according to claim 1, characterised in that: One end of the feeding bin (4) is fixedly connected to a balance pipe (13), a pipe filter (12) is installed on one side of the balance pipe (13), a breather (14) is fixedly connected to one side of the upper surface of the feeding bin (4), and a vibrator (15) is installed on the lower part of the outer wall of the feeding bin (4).

3. A comminutor according to claim 1, characterised in that: A manual ball valve (16) is installed on one side of the middle of the U-shaped air pipe (19). A twin screw feeder (17) is installed on one side of the manual ball valve (16). The output end of the twin screw feeder (17) is fixedly connected to a feed air pipe (25). One end of the feed air pipe (25) is connected to the U-shaped air pipe (19). A main air source valve (20) is installed on one side of the outer wall of the U-shaped air pipe (19). A pressure transmitter (23) is installed on the other side of the outer wall of the U-shaped air pipe (19).

4. A comminutor according to claim 3, characterised in that: A pressure reducing valve (18) is installed on one side of the manual ball valve (16), and a vibrator (21) is fixedly connected to one end of the pressure reducing valve (18). A pressure transmitter (26) is installed at the lower part of the feed air pipe (25), and a manual diaphragm valve (24) is fixedly connected to the outer wall of the feed air pipe (25).

5. A comminutor according to claim 1, characterised in that: The outer wall of the U-shaped trachea (19) is provided with a pulverizing trachea (22).

6. A comminutor according to claim 1, characterised in that: The bottom of the dust collection bag (2) is fixedly connected to a buffer tube (29).

7. A comminutor according to claim 1, characterised in that: A differential pressure transmitter (30) is installed on the upper surface of the filter (3), a filter element (34) is installed inside the filter (3), the filter (3) is connected to the fan (31) through a connecting pipe (32), and a system valve (33) is installed on the outer wall of the connecting pipe (32).

8. A comminutor according to claim 1, characterised in that: A sight glass (27) is installed on the discharge pipe of the feeding hopper (4), and a drain outlet (35) is provided in the middle of one side of the dust removal bag (2).

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