A dust removal and collection device for a pulverizer

Abstract

The utility model relates to pharmaceutical mechanical equipment technical field discloses a kind of mill dust dedusting collection devices, including base, the top four corner of base is uniformly connected with bracket, the top right side of bracket is provided with crushing mechanism, the top right side of base is provided with material collecting mechanism, the top of material collecting mechanism is provided with casing, the inside of casing is provided with filter mechanism, the filter mechanism is used to screen large raw materials and small dust, the top left side of base is provided with cleaning mechanism, the cleaning mechanism is used for cleaning inside device, the top left side of casing is provided with blowing mechanism, the filter mechanism includes metal filter screen. In the utility model, filter mechanism realizes multistage screening by metal filter screen, PTFE film filter cartridge, HEPA filter plate structure, improves the trapping efficiency of filter device to pharmaceutical crushing fine dust, effectively meets the demand of high filtration efficiency and low running resistance.

Description

Technical Field

[0001] The utility model relates to the technical field of pharmaceutical machinery equipment, in particular to a dust removal and collection device for a pulverizer. Background Art

[0002] The dust removal and collection device for a pulverizer is an environmental protection and safety device supporting a pharmaceutical pulverizer, which is used to capture the powder dust generated during the pulverization process. Through the negative pressure air flow generated by a fan, the dust lifted in the pulverization chamber is sucked into a pipeline, separated and intercepted by a filter component, the clean air is discharged, and the dust is collected in a dust collection box. The device can reduce the dust concentration in the workshop, prevent the risk of dust explosion, and at the same time avoid the waste of raw materials and environmental pollution caused by the escape of powder, meeting the requirements of the Good Manufacturing Practice for Pharmaceuticals for a clean environment.

[0003] After retrieval, the Chinese patent publication number is: CN212943450U. This utility model belongs to the technical field of powder collection devices, and specifically relates to a dust-free pulverizer powder collection device, including a pulverizer, a cyclone collector, a pulse dust collector, an induced draft fan, and an air duct. The pulverizer is connected to the cyclone collector through the air duct, the cyclone collector is connected to the pulse dust collector through the air duct, and the pulse dust collector is connected to the induced draft fan through the air duct; a feeding hopper is arranged at the top of the pulverizer, and a discharge port is arranged at the bottom of the pulverizer, and the discharge port is fixedly connected to the air duct; by arranging a cyclone collector between the pulverizer and the pulse dust collector, this utility model solves the problem of frequent blockage of the filter element during use, reduces the load during the filtration of the filter, thereby improving the pulverization effect, reducing the risk of cross-contamination, and improving the safe usability of the equipment; this utility model is used for the collection of pharmaceutical dust, but in actual use, the filtration device has insufficient capture efficiency for fine dust generated by pharmaceutical pulverization, and cannot effectively balance the contradictory requirements of high filtration efficiency and low operating resistance. Summary of the Utility Model

[0004] In order to make up for the above deficiencies, the utility model provides a dust removal and collection device for a pulverizer, aiming to improve the problem that the filtration device has insufficient capture efficiency for fine dust generated by pharmaceutical pulverization and cannot effectively balance the contradictory requirements of high filtration efficiency and low operating resistance.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: A dust removal and collection device for a pulverizer includes a base, and brackets are fixedly connected to the four corners at the top of the base. A pulverization mechanism is arranged on the right side at the top of the bracket, an aggregate mechanism is arranged on the right side at the top of the base, a casing is arranged on the top of the aggregate mechanism, a filtration mechanism is arranged inside the casing, and the filtration mechanism is used for screening large raw materials and fine dust. A cleaning mechanism is arranged on the left side at the top of the base, and the cleaning mechanism is used for cleaning the inside of the device. A blowing mechanism is arranged on the left side at the top of the casing;

[0006] The filtration mechanism includes a metal filter screen, the front and rear sides of which are fixedly connected to the front and rear ends of the inner side of the housing, respectively. Multiple PTFE membrane filter cartridges are provided on the right inner side of the housing, multiple air pipes are fixedly connected to the right inner side of the housing, and a HEPA filter plate is fixedly connected to the right front side of the housing. Nozzles are provided at the bottom of each of the multiple air pipes, and connecting components are provided between adjacent PTFE membrane filter cartridges. Air jet components are provided on the right side of each of the multiple air pipes.

[0007] The above technical solution involves: a metal filter screen to remove large particles from the crushed material; a PTFE membrane filter cartridge to intercept fine dust in the airflow, achieving gas-solid separation; an air pipe and nozzle connected to a compressed air source to provide a channel for pulse backflushing; and a HEPA filter plate to further filter the air after it has passed through the PTFE membrane filter cartridge, trapping extremely fine dust and ensuring that the discharged gas is clean.

[0008] As a further description of the above technical solution:

[0009] The cleaning mechanism includes a water tank, the bottom of which is fixedly connected to the top left side of the base. A water pump is fixedly connected to the top of the water tank. A pipe is connected to the front side of the water pump. A sprayer is fixedly connected to the front right end of the housing. Multiple high-pressure nozzles are fixedly connected to the rear side of the sprayer.

[0010] The above technical solution involves: a water tank storing cleaning fluid; a water pump drawing and pressurizing the cleaning fluid from the water tank; a pipeline transmitting the pressurized cleaning fluid; and a sprayer and high-pressure nozzles spraying the cleaning fluid into the filter mechanism for cleaning, removing attached dust and impurities.

[0011] As a further description of the above technical solution:

[0012] The connecting assembly includes multiple connecting rods, which are fixedly connected to adjacent PTFE membrane filter cartridges on all four sides. Baffles are fixedly connected to the left side of each of the multiple connecting rods on the left side.

[0013] The above technical solution involves: connecting rods fixing adjacent PTFE membrane filter cartridges to maintain a stable filter cartridge arrangement structure; and baffles dividing the interior of the housing into left and right areas.

[0014] As a further description of the above technical solution:

[0015] The jet assembly includes multiple compressed air tanks, the left side of each of the multiple compressed air tanks is fixedly connected to the right side of the housing, and the top of each of the multiple compressed air tanks is fixedly connected to a solenoid valve.

[0016] The above technical solution involves storing compressed air in a compressed air tank, controlling the flow of compressed air using a solenoid valve, and achieving pulse backflushing of the PTFE membrane filter cartridge by opening and closing the valve.

[0017] As a further description of the above technical solution:

[0018] The blower mechanism includes a blower, the bottom of which is fixedly connected to the top left side of the housing, and two air outlets are fixedly connected to the bottom of the blower.

[0019] The above technical solution involves a wind turbine generating airflow, which is then conveyed into the casing through the air outlet. This airflow carries the crushed material and dust towards the filtration mechanism, controlling the direction of dust movement.

[0020] As a further description of the above technical solution:

[0021] The material collection mechanism includes a material collection bin, the bottom of which is located on the top right side of the base. A pneumatic butterfly valve is fixedly connected to the bottom of the material collection bin, and a support assembly is provided on the outside of the material collection bin.

[0022] The above technical solution involves a collection bin that receives the powder falling from the filtration mechanism, temporarily storing the collected dust and qualified powder, and a pneumatic butterfly valve that opens and closes to control the discharge of the powder.

[0023] As a further description of the above technical solution:

[0024] The support assembly includes multiple hydraulic rods, the top ends of which are fixedly connected to the outside of the collection bin, and the bottom ends of which are fixedly connected to supports.

[0025] The above technical solution uses hydraulic rods to support the material silo, buffering vibrations during equipment operation. The support fixes the hydraulic rods to the base, ensuring the stability of the support structure.

[0026] As a further description of the above technical solution:

[0027] The crushing mechanism includes a crusher, the four corners of the bottom of the crusher are fixedly connected to the top of the support, and the bottom of the crusher is fixedly connected to a discharge port.

[0028] The above technical solution involves a crusher that breaks down the raw materials, with the discharge port located at the bottom of the crusher, which then transports the crushed material to a filtration mechanism.

[0029] This utility model has the following beneficial effects:

[0030] 1. In this utility model, the filtration mechanism achieves multi-stage screening through a structure of metal filter screen, PTFE membrane filter cartridge, and HEPA filter plate. The metal filter screen intercepts large particles of raw material and discharges them from the left side of the casing. The PTFE membrane filter cartridge screens fine dust, and the HEPA filter plate further filters extremely fine dust, ensuring that the discharged air is clean and improving the collection efficiency of the filtration device for pharmaceutical pulverization fine dust, effectively balancing the requirements of high filtration efficiency and low operating resistance.

[0031] 2. In this utility model, the water tank stores the cleaning liquid to provide a water source for cleaning. The water pump extracts and pressurizes the liquid in the water tank to provide power for the delivery of the cleaning liquid. The pipeline connects the water pump and the sprayer to deliver the pressurized cleaning liquid to the sprayer. Multiple high-pressure nozzles on the back of the sprayer are aimed at different positions inside the filter mechanism, which can spray the cleaning liquid onto various parts of the filter mechanism in a high-pressure jet manner to wash and clean the dust and impurities attached to the filter mechanism. Attached Figure Description

[0032] Figure 1 This is a perspective view of a dust collection device for a pulverizer proposed in this utility model;

[0033] Figure 2 This is a front view of a dust collection device for a pulverizer proposed in this utility model;

[0034] Figure 3 This is a schematic diagram of the material collection mechanism in a dust collection device for a pulverizer proposed in this utility model;

[0035] Figure 4 This is a cross-sectional view of the casing of a dust collection device for a pulverizer proposed in this utility model;

[0036] Figure 5 This is a schematic diagram of the cleaning mechanism in a dust collection device for a pulverizer proposed in this utility model.

[0037] Legend:

[0038] 1. Base; 2. Bracket; 3. Housing; 4. Filtration Mechanism; 401. Metal Filter Mesh; 402. PTFE Membrane Filter Cartridge; 403. HEPA Filter Plate; 404. Air Pipe; 405. Nozzle; 406. Connecting Assembly; 4061. Connecting Rod; 4062. Baffle; 407. Air Jet Assembly; 4071. Compressed Air Tank; 4072. Solenoid Valve; 5. Cleaning Mechanism; 501. Water Tank; 502. Water Pump; 503. Pipeline; 504. Sprayer; 505. High-Pressure Spray Nozzle; 6. Blowing Mechanism; 601. Blower; 602. Air Outlet; 7. Material Collection Mechanism; 701. Material Collection Bin; 702. Pneumatic Butterfly Valve; 703. Support Assembly; 7031. Hydraulic Rod; 7032. Support; 8. Crushing Mechanism; 801. Crusher; 802. Discharge Port. Detailed Implementation

[0039] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0040] Reference Figure 1 , Figure 2 and Figure 4 An embodiment of this utility model provides a dust collection device for a crusher, including a base 1, with brackets 2 fixedly connected to the four corners of the top of the base 1, a crushing mechanism 8 provided on the top right side of the brackets 2, a material collection mechanism 7 provided on the top right side of the base 1, a housing 3 provided on the top of the material collection mechanism 7, a filtering mechanism 4 provided on the inner side of the housing 3, the filtering mechanism 4 being used to screen large raw materials and fine dust, a cleaning mechanism 5 provided on the top left side of the base 1, the cleaning mechanism 5 being used for cleaning the inside of the device, and a blower mechanism 6 provided on the top left side of the housing 3.

[0041] The filtration mechanism 4 includes a metal filter screen 401, with its front and rear sides fixedly connected to the front and rear ends of the inner side of the housing 3, respectively. Multiple PTFE membrane filter cartridges 402 are disposed on the right inner side of the housing 3, and multiple air tubes 404 are fixedly connected to the right inner side of the housing 3. A HEPA filter plate 403 is fixedly connected to the right front side of the housing 3. Nozzles 405 are disposed at the bottom of each of the multiple air tubes 404. Connecting components 406 are disposed between adjacent PTFE membrane filter cartridges 402, and the connecting components 406 include multiple... A connecting rod 4061 is fixedly connected to the periphery of a plurality of PTFE membrane filter cartridges 402. A baffle 4062 is fixedly connected to the left side of each of the multiple connecting rods 4061 on the left side. An air jet assembly 407 is provided on the right side of each of the multiple air pipes 404. The air jet assembly 407 includes a plurality of compressed air tanks 4071. The left side of each of the multiple compressed air tanks 4071 is fixedly connected to the right side of the housing 3. A solenoid valve 4072 is fixedly connected to the top of each of the multiple compressed air tanks 4071.

[0042] Specifically, the base 1 supports the entire device. Supports 2 are fixedly connected to the four corners of the top of the base 1. The supports 2 support the crushing mechanism 8 at the top. The crushing mechanism 8 is located on the right side of the top of the supports 2. The crushing mechanism 8 is used to crush raw materials. A collecting mechanism 7 is located on the right side of the top of the base 1. The collecting mechanism 7 is used to collect the sieved powder. A housing 3 is located on top of the collecting mechanism 7. A filtering mechanism 4 is located inside the housing 3. The filtering mechanism 4 is used to separate large raw materials and fine dust. A cleaning mechanism 5 is located on the left side of the top of the base 1. The cleaning mechanism 5 is used for cleaning the inside of the device. A blower mechanism 6 is provided to provide airflow control for dust movement. A filter mechanism 4 includes a metal filter screen 401 with an 80-mesh size, which filters out large particles that fall from the left side of the housing 3. The front and rear sides of the metal filter screen 401 are fixedly connected to the front and rear ends of the inner side of the housing 3, respectively. Multiple PTFE membrane filter cartridges 402 are provided on the right inner side of the housing 3. The PTFE membrane filter cartridges 402 have a 1μm pore size and are internal flow sieves with slits at the bottom. Multiple air pipes 404 are fixedly connected to the right inner side of the housing 3, and the air pipes 404 are connected to a solenoid valve 4072. The bottoms of the multiple air pipes 404 are... A nozzle 405 is provided, aligned with the central axis of the PTFE membrane filter cartridge 402. A HEPA filter plate 403, H13 grade, is fixedly connected to the front right end of the housing 3. Connecting components 406 are provided between adjacent PTFE membrane filter cartridges 402, fixing the PTFE membrane filter cartridges 402 to the inside of the housing 3. The connecting components 406 include multiple connecting rods 4061, which fix the multiple PTFE membrane filter cartridges 402. The multiple connecting rods 4061 are fixedly connected to the multiple PTFE membrane filter cartridges 402 around their respective sides. Between adjacent 402, baffles 4062 are fixedly connected to the left side of multiple connecting rods 4061 on the left side. The baffles 4062 divide the housing 3 into left and right parts. Jet assemblies 407 are provided on the right side of multiple air pipes 404. The jet assemblies 407 are used for pulse backflushing. The jet assemblies 407 include multiple compressed air tanks 4071. The compressed air tanks 4071 store the gas to be injected. The left side of multiple compressed air tanks 4071 is fixedly connected to the right side of the housing 3. Solenoid valves 4072 are fixedly connected to the top of multiple compressed air tanks 4071. Solenoid valves 4072 are used to control the flow of gas.

[0043] Reference Figure 1 , Figure 2 and Figure 5 The cleaning mechanism 5 includes a water tank 501. The bottom of the water tank 501 is fixedly connected to the top left side of the base 1. A water pump 502 is fixedly connected to the top of the water tank 501. A pipe 503 is connected to the front side of the water pump 502. A sprayer 504 is fixedly connected to the front right side of the housing 3. Multiple high-pressure nozzles 505 are fixedly connected to the rear side of the sprayer 504.

[0044] Specifically, the water tank 501 stores liquid for cleaning the filter mechanism 4. The bottom of the water tank 501 is fixedly connected to the top left side of the base 1. The top of the water tank 501 is fixedly connected to the water pump 502. The water pump 502 transports water to the sprayer 504 through the pipe 503. The front side of the water pump 502 is connected to the pipe 503. The front right side of the housing 3 is fixedly connected to the sprayer 504. The sprayer 504 is connected to multiple high-pressure nozzles 505. The rear side of the sprayer 504 is fixedly connected to multiple high-pressure nozzles 505. The high-pressure nozzles 505 are aimed at different positions inside the filter mechanism 4.

[0045] Reference Figure 1 , Figure 2 and Figure 3 The material collection mechanism 7 includes a material collection bin 701. The bottom of the material collection bin 701 is located on the top right side of the base 1. A pneumatic butterfly valve 702 is fixedly connected to the bottom of the material collection bin 701. A support assembly 703 is provided on the outside of the material collection bin 701. The support assembly 703 includes multiple hydraulic rods 7031. The top ends of the multiple hydraulic rods 7031 are fixedly connected to the outside of the material collection bin 701, and the bottom ends of the multiple hydraulic rods 7031 are fixedly connected to supports 7032.

[0046] Specifically, the collection bin 701 collects the powder falling from above. The bottom of the collection bin 701 is located on the top right side of the base 1. A pneumatic butterfly valve 702 is fixedly connected to the bottom of the collection bin 701, which controls the outflow of the powder. A support assembly 703 is provided on the outside of the collection bin 701 to support the collection bin 701. The support assembly 703 includes multiple hydraulic rods 7031, which provide shock absorption support. The tops of the multiple hydraulic rods 7031 are fixedly connected to the outside of the collection bin 701, and the bottoms of the multiple hydraulic rods 7031 are fixedly connected to supports 7032, which fix the hydraulic rods 7031 to the base 1.

[0047] Reference Figure 2 , Figure 3 and Figure 4 The blower mechanism 6 includes a blower 601, the bottom of which is fixedly connected to the top left side of the housing 3. Two air outlets 602 are fixedly connected to the bottom of the blower 601. The crushing mechanism 8 includes a crusher 801, the four corners of which are fixedly connected to the top of the bracket 2. The bottom of the crusher 801 is fixedly connected to a discharge port 802.

[0048] Specifically, the fan 601 provides airflow to carry the dust flow. The bottom of the fan 601 is fixedly connected to the top left side of the housing 3. Two air outlets 602 are fixedly connected to the bottom of the fan 601. The air outlets 602 are aligned with the metal filter screen 401. The crushing mechanism 8 includes a crusher 801, which crushes the raw materials. The four corners of the bottom of the crusher 801 are fixedly connected to the top of the bracket 2. The bottom of the crusher 801 is fixedly connected to the discharge port 802. The crushed raw materials fall from the discharge port 802 into the filtration mechanism 4.

[0049] Working Principle: The crusher 801 in the crushing mechanism 8 is activated, and the raw material is fed in for crushing. The crushed material falls through the discharge port 802 at the bottom of the crusher 801. The blower 601 in the blowing mechanism 6 is activated, and airflow is blown out from the two air outlets 602 at the bottom, carrying the falling material and dust into the housing 3. The material and dust first pass through the metal filter screen 401, causing large particles to fall from the left side of the housing 3. The remaining airflow containing fine dust continues to move to the right, entering the filtration area composed of multiple PTFE membrane filter cartridges 402, air pipes 404, nozzles 405, and HEPA filter plates 403. The PTFE membrane filter cartridges 402 use an internal flow screening method to intercept fine dust on the surface, while clean air passes through. When a large amount of dust accumulates on the surface of the PTFE membrane filter cartridges 402, the jet assembly 407 is activated. The gas stored in the compressed air tank 4071 is controlled by the solenoid valve 4072. The air is sprayed from the nozzle 405 through the air pipe 404, and the PTFE membrane filter cartridge 402 is backflushed with pulses, causing the dust to fall off. The fallen dust and the extremely fine dust that is not intercepted by the PTFE membrane filter cartridge 402 continue to move downwards and are filtered again by the H13 grade HEPA filter plate 403 at the front right end of the housing 3, further ensuring that the exhaust air is clean. The filtered dust falls into the collection bin 701 in the collection mechanism 7 below. The pneumatic butterfly valve 702 at the bottom of the collection bin 701 can control the flow of powder. The outside of the collection bin 701 is supported by the support component 703, the hydraulic rod 7031 provides shock absorption, and the support 7032 is fixed on the base 1. The cleaning liquid stored in the water tank 501 is sent to the sprayer 504 by the water pump 502 through the pipe 503, and then sprayed out through multiple high-pressure nozzles 505 on the rear side of the sprayer 504, aimed at different positions in the filter mechanism 4 to clean, so as to ensure the continuous and efficient operation of the device.

[0050] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust collection device for a pulverizer, comprising a base (1), characterized in that: The base (1) has four fixed brackets (2) at the top corners. The brackets (2) have a crushing mechanism (8) on the top right side. The base (1) has a collecting mechanism (7) on the top right side. The collecting mechanism (7) has a shell (3) on top. The shell (3) has a filtering mechanism (4) on the inside. The filtering mechanism (4) is used to screen large raw materials and fine dust. The base (1) has a cleaning mechanism (5) on the top left side. The cleaning mechanism (5) is used for cleaning the inside of the device. The shell (3) has a blower mechanism (6) on the top left side. The filtration mechanism (4) includes a metal filter screen (401), the front and rear sides of which are fixedly connected to the front and rear ends of the inner side of the housing (3), a plurality of PTFE membrane filter cartridges (402) are provided on the right side of the inner side of the housing (3), a plurality of air pipes (404) are fixedly connected to the right side of the inner side of the housing (3), a HEPA filter plate (403) is fixedly connected to the right side of the front side of the housing (3), a nozzle (405) is provided at the bottom of each of the plurality of air pipes (404), a connecting component (406) is provided between each of the plurality of PTFE membrane filter cartridges (402), and an air jet component (407) is provided on the right side of each of the plurality of air pipes (404).

2. The dust collection device for a pulverizer according to claim 1, characterized in that: The cleaning mechanism (5) includes a water tank (501), the bottom of which is fixedly connected to the top left side of the base (1), a water pump (502) is fixedly connected to the top of the water tank (501), a pipe (503) is connected to the front side of the water pump (502), a sprayer (504) is fixedly connected to the front right side of the housing (3), and multiple high-pressure nozzles (505) are fixedly connected to the rear side of the sprayer (504).

3. The dust collection device for a pulverizer according to claim 1, characterized in that: The connecting assembly (406) includes multiple connecting rods (4061), which are fixedly connected to adjacent PTFE membrane filter cartridges (402) around their perimeters. Baffles (4062) are fixedly connected to the left side of each of the multiple connecting rods (4061) on the left side.

4. The dust collection device for a pulverizer according to claim 1, characterized in that: The jet assembly (407) includes multiple compressed air tanks (4071), the left side of each of the multiple compressed air tanks (4071) is fixedly connected to the right side of the housing (3), and the top of each of the multiple compressed air tanks (4071) is fixedly connected to a solenoid valve (4072).

5. The dust collection device for a pulverizer according to claim 1, characterized in that: The blower mechanism (6) includes a blower (601), the bottom of which is fixedly connected to the top left side of the housing (3), and the bottom of the blower (601) is fixedly connected to two air outlets (602).

6. The dust collection device for a pulverizer according to claim 1, characterized in that: The material collection mechanism (7) includes a material collection bin (701), the bottom of which is located on the top right side of the base (1), and a pneumatic butterfly valve (702) is fixedly connected to the bottom of the material collection bin (701). A support assembly (703) is provided on the outside of the material collection bin (701).

7. A dust collection device for a pulverizer according to claim 6, characterized in that: The support assembly (703) includes a plurality of hydraulic rods (7031), the top ends of which are fixedly connected to the outside of the collection bin (701), and the bottom ends of which are fixedly connected to supports (7032).

8. The dust collection device for a pulverizer according to claim 1, characterized in that: The crushing mechanism (8) includes a crusher (801), and the four corners of the bottom of the crusher (801) are fixedly connected to the top of the support (2). The bottom of the crusher (801) is fixedly connected to the discharge port (802).

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