Metal filter bag filter

Abstract

Relates to the field of waste gas treatment, and discloses a metal filter bag filter which comprises a filter box, a gas inlet formed in one side of the filter box, a gas outlet formed in the other side of the filter box, a discharge pipe arranged at the lower end of the filter box and a filter bag arranged in the filter box. The sealing unit is arranged on the filter box; the ash removal device is arranged on the filter box; the dust cleaning unit is arranged on the filter box, corresponds to the filter bag and is used for further cleaning dust on the filter bag, dust leakage can be effectively prevented, the sealing performance of the filter box is improved, and therefore the environment and the health of operators are protected; the dust blowing unit can effectively blow off dust on the surface of the filter bag, the dust cleaning unit can clean residual dust on the filter bag, the service life of the filter bag is prolonged, and the filter efficiency of the filter bag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a metal filter bag filter. Background Art

[0002] Lithium battery recycling and processing equipment process: Classify and sort the recycled lithium batteries; Use the high-temperature waste gas at the tail of the cement rotary kiln to dry the waste lithium batteries, and use a combination of a shredder and a crusher to crush the batteries into battery scraps; Use a pneumatic separation device to separate the diaphragm from the battery scraps, and then use a magnetic separator to separate and collect the tabs from the stockpile. Generally, a dry magnetic separator is used here. The remaining materials after separation are finely ground and sorted again by a crusher, and some recyclable substances are collected.

[0003] Existing equipment has the following disadvantages: The high-temperature waste gas at the tail of the cement kiln contains a large amount of particulate matter. Before entering the drying process, the high-temperature waste gas needs to be filtered. The filtration and purification of particulate matter usually use a bag pulse dust collector. However, there are some problems in the use of traditional filter bag filters, such as dust leakage caused by poor sealing, serious dust accumulation on the filter bags and poor dust cleaning effect, etc. These problems not only affect the dust removal efficiency of the filter, but also increase the maintenance cost, and may even cause potential safety hazards.

[0004] Therefore, the present application now proposes a metal filter bag filter to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a metal filter bag filter to solve the problems of dust leakage caused by poor sealing, serious dust accumulation on the filter bags and poor dust cleaning effect, and inconvenience in cleaning the filtering equipment.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A metal filter bag filter, comprising a filter box, an air inlet arranged on one side of the filter box, an air outlet arranged on the other side of the filter box, and a discharge pipe arranged at the lower end of the filter box. A filter bag is arranged inside the filter box, and further includes:

[0007] A sealing unit, arranged on the filter box, for sealing the filter box;

[0008] A dust cleaning device, arranged on the filter box, for preliminarily cleaning the dust on the filter bag;

[0009] A dust cleaning unit, arranged on the filter box and corresponding to the filter bag, for further cleaning the dust on the filter bag.

[0010] Among them, a partition for installing the filter bag is arranged inside the filter box. The dust cleaning unit includes a collar sleeved on the filter bag, a brush fixed inside the collar, a side plate arranged outside the collar, a support rod fixed at the lower end of the partition, and a bottom plate fixed at the lower end of the support rod. The side plate is sleeved on the support rod, a pull rope is fixed at the lower end of the side plate, and an elastic member is sleeved between the side plate and the bottom plate on the support rod.

[0011] Among them, the pull rope passes through the filter box and a pull ring is arranged on one side of the filter box located outside. A guide wheel for guiding the pull rope is arranged on the bottom plate.

[0012] Among them, a stop piece is arranged on the pull rope, and the stop piece is located outside the filter box.

[0013] Among them, the dust cleaning device includes a pulse generator fixed outside the filter box, a pulse valve arranged on the pulse generator and passing through the filter box, a connecting pipe arranged on the pulse valve, and a blowpipe opened at the lower end of the connecting pipe corresponding to the position of the filter bag. The connecting pipe is located above the filter bag.

[0014] Among them, the sealing unit includes a connecting frame fixed at the upper end of the filter box, an inner door arranged at the bottom of the connecting frame, an outer door arranged at the top of the connecting frame, and a weight flap valve arranged on the discharge pipe. There are three groups of the weight flap valves.

[0015] Among them, a blanking plate is arranged between the filter box and the discharge pipe. A striking motor is fixed on one side of the blanking plate, and an observation window is opened on the other side of the blanking plate.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] In the present utility model, the waste gas generated after pulverization in the lithium battery recycling process is introduced into the interior of the filter box from the air inlet, and then the dust in the waste gas is filtered by the filter bag. Then, the gas qualified after filtration and purification is discharged from the discharge pipe. By setting the sealing unit, dust leakage can be effectively prevented, and the sealing performance of the filter box can be improved, thereby protecting the environment and the health of operators. After the device is used for a period of time, the filter bag needs to be cleaned. By setting the dust cleaning device and the dust cleaning unit, the dust on the filter bag can be cleaned multiple times. The dust cleaning device can effectively blow off the dust on the surface of the filter bag, and the dust cleaning unit can clean the residual dust on the filter bag, improving the service life and filtration efficiency of the filter bag. By reducing dust leakage and dust accumulation, the potential safety hazards caused by dust accumulation, such as the risk of fire or explosion, are reduced. At the same time, its optimized structure and high-efficiency dust cleaning ability also improve the overall reliability and service life of the filter. Brief Description of the Drawings

[0018] Figure 1 It is a schematic diagram of the main structure in an embodiment of the present utility model;

[0019] Figure 2 It is a schematic diagram of the front view structure in an embodiment of the present utility model;

[0020] Figure 3 It is a schematic diagram of the rear view structure in an embodiment of the present utility model;

[0021] Figure 4 It is a schematic diagram of the side view structure in an embodiment of the present utility model;

[0022] Figure 5 It is a schematic diagram of the sectional view structure in an embodiment of the present utility model;

[0023] Figure 6 It is a schematic diagram of the internal structure of the filter box in an embodiment of the present utility model;

[0024] Figure 7 It is a schematic diagram of the connection structure between the dust cleaning unit and the filter bag in an embodiment of the present utility model;

[0025] Figure 8 It is a schematic diagram of the dust cleaning unit cleaning the filter bag in an embodiment of the present utility model;

[0026] Figure 9 It is a schematic diagram of the dust cleaning unit in an embodiment of the present utility model.

[0027] In the figure: 1. Filter box; 11. Feeding plate; 12. Air inlet; 13. Air outlet; 14. Discharge pipe; 15. Observation window; 16. Filter bag; 17. Partition board; 2. Sealing unit; 21. Connection frame; 22. Inner door; 23. Outer door; 24. Gravity flap valve; 3. Pulse generator; 31. Pulse valve; 32. Connecting pipe; 33. Blowing pipe; 4. Ladder; 5. Striking motor; 6. Dust cleaning unit; 61. Collar; 611. Brush; 62. Side plate; 63. Support rod; 64. Bottom plate; 65. Elastic member; 66. Pull rope; 67. Guide wheel; 68. Pull ring; 69. Flap. Detailed Description of the Preferred Embodiment

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0029] Please refer to Figures 1-9 , the present utility model provides a technical solution: a metal filter bag filter, which includes a filter box 1, an air inlet 12 provided on one side of the filter box 1, an air outlet 13 provided on the other side of the filter box 1, and a discharge pipe 14 provided at the lower end of the filter box 1. A filter bag 16 is provided inside the filter box 1, and further includes:

[0030] A sealing unit 2, provided on the filter box 1, for sealing the filter box 1;

[0031] A dust cleaning device, provided on the filter box 1, for preliminarily cleaning the dust on the filter bag 16;

[0032] A dust cleaning unit 6, provided on the filter box 1 and corresponding to the filter bag 16, for further cleaning the dust on the filter bag 16.

[0033] It should be noted that during operation, the waste gas generated after crushing during the lithium battery recycling process is introduced into the interior of the filter box 1 from the air inlet 12, and then the dust in the waste gas is filtered by the filter bag 16, and then the gas qualified after filtration and purification is discharged from the discharge pipe 14. By setting the sealing unit 2, dust leakage can be effectively prevented, the sealing performance of the filter box 1 can be improved, thereby protecting the environment and the health of operators. After the device is used for a period of time, the filter bag 16 needs to be cleaned. By setting the dust cleaning device and the dust cleaning unit 6, the dust on the filter bag 16 can be cleaned multiple times. The dust cleaning device can effectively blow off the dust on the surface of the filter bag 16, and the dust cleaning unit 6 can clean the residual dust on the filter bag 16, improving the service life and filtration efficiency of the filter bag 16. By reducing dust leakage and dust accumulation, the potential safety hazards caused by dust accumulation, such as the risk of fire or explosion, are reduced. At the same time, its optimized structure and efficient dust cleaning ability also improve the overall reliability and service life of the filter.

[0034] In an embodiment, a partition 17 for installing the filter bag 16 is provided inside the filter box 1. The dust cleaning unit 6 includes a collar 61 sleeved on the filter bag 16, a brush 611 fixed inside the collar 61, a side plate 62 provided outside the collar 61, a support rod 63 fixed at the lower end of the partition 17, and a bottom plate 64 fixed at the lower end of the support rod 63. The side plate 62 is sleeved on the support rod 63, a pull rope 66 is fixed at the lower end of the side plate 62, and an elastic member 65 is sleeved between the side plate 62 and the bottom plate 64 on the support rod 63. The elastic member 65 is made of a spring or elastic pad with damping.

[0035] With such a design, refer to Figures 6-9, By regularly cleaning the filter bag 16, the accumulated dust and impurities can be removed, maintaining the permeability of the filter bag 16, thereby improving its filtration efficiency. Cleaning the filter bag 16 with the brush 611 can prevent the filter bag 16 from being blocked and damaged due to long-term dust accumulation, and thus extend the service life of the filter bag 16. Pulling the pull rope 66 drives the side plate 62 to move up and down on the support rod 63. The side plate 62 squeezes the elastic member 65. When the pull rope 66 is released, the elastic member 65 can drive the side plate 62 to automatically reset, and then the collar 61 drives the brush 611 to move up. The brush 611 can gently remove the dust on the surface of the filter bag 16. Compared with other dust cleaning methods (such as back blowing, vibration, etc.), this method may be more gentle and cause less damage to the filter bag 16. Through the design of the support rod 63 and the bottom plate 64, the structural stability of the dust cleaning unit 6 is increased, ensuring that all components can work together during the dust cleaning process and will not be damaged due to improper operation.

[0036] In one embodiment, the pull rope 66 passes through the filter box 1 and a pull ring 68 is provided on one side of the filter box 1 located outside. A guide wheel 67 for guiding the pull rope 66 is provided on the bottom plate 64.

[0037] With this design, referring to Figure 8 、and Figure 9 , through the pull ring 68 provided outside the filter box 1, the operator can more conveniently pull the pull rope 66, thereby controlling the movement of the dust cleaning unit 6. The guide wheel 67 provided on the bottom plate 64 guides the pull rope 66, ensuring that the pull rope 66 can move stably during the pulling process and reducing friction and resistance, making the movement of the dust cleaning unit 6 smoother. By optimizing the design of the pull rope 66 and the pull ring 68, the dust cleaning process can be started and completed faster, thereby improving the dust cleaning efficiency, reducing the dust accumulation time of the filter bag 16, and maintaining the filtration effect.

[0038] In one embodiment, a stop piece 69 is provided on the pull rope 66, and the stop piece 69 is located outside the filter box 1.

[0039] With this design, referring to Figure 8 、and Figure 9 , the stop piece 69 can limit the movement distance of the pull rope 66 and can seal the perforation between the pull rope 66 and the filter box 1, which can further improve the sealing performance inside the filter box 1.

[0040] In one embodiment, the dust cleaning device includes a pulse generator 3 fixed outside the filter box 1, a pulse valve 31 provided on the pulse generator 3 and penetrating through the filter box 1, a connecting pipe 32 provided on the pulse valve 31, and a blowpipe 33 opened at the lower end of the connecting pipe 32 corresponding to the position of the filter bag 16. The connecting pipe 32 is located above the filter bag 16.

[0041] With this design, referring toFigures 1-6 The high-pressure air flow generated by the pulse generator 3 directly acts on the filter bag 16 via the pulse valve 31, the connecting pipe 32, and the blowing pipe 33, which can effectively remove the dust and impurities on the filter bag 16. This pulse dust cleaning method can generate a strong air flow impact in a short time, thereby thoroughly cleaning the filter bag 16 and ensuring its filtration efficiency.

[0042] In one embodiment, the sealing unit 2 includes a connecting frame 21 fixed to the upper end of the filter box 1, an inner door 22 provided at the bottom of the connecting frame 21, an outer door 23 provided at the top of the connecting frame 21, and a weight flap valve 24 provided on the discharge pipe 14. There are three groups of weight flap valves 24.

[0043] With such a design, referring to Figures 1-6 , the combined design of the connecting frame 21, the inner door 22, and the outer door 23 provides multi-level sealing protection for the filter box 1, effectively preventing gas and dust leakage. The design of the inner door 22 and the outer door 23 not only provides a good sealing effect but also facilitates the maintenance and repair work of the operators, while ensuring the safety of the operation process. The three groups of weight flap valves 24 provided on the discharge pipe 14 can effectively control the flow of materials, prevent the materials from flowing back into the filter box 1, ensure the stable operation of the system, and reduce the risk of blockage.

[0044] In one embodiment, a blanking plate 11 is provided between the filter box 1 and the discharge pipe 14. A striking motor 5 is fixed to one side of the blanking plate 11, an observation window 15 is provided on the other side of the blanking plate 11, and a ladder 4 is provided on one side of the filter box 1.

[0045] With such a design, referring to Figures 1-4 , the design of the blanking plate 11 ensures the smooth transfer of materials from the filter box 1 to the discharge pipe 14, reduces the risk of blockage, and thus improves the production efficiency. The setting of the observation window 15 allows the operator to monitor the blanking process in real time, facilitating the timely discovery and solution of problems such as material blockage or uneven blanking, ensuring the stability and controllability of the production process. The equipped striking motor 5 can prevent the blockage of materials during the blanking process by vibrating the blanking plate 11, further enhancing the anti-blocking function and ensuring the continuity of production. The ladder 4 provided on one side of the filter box 1 provides a convenient passage for the operator, facilitating them to reach the upper part of the filter box 1 for daily maintenance, repair, or cleaning work, improving the work efficiency and safety.

Claims

1. A metal filter bag filter, comprising a filter box (1), an air inlet (12) arranged on one side of the filter box (1), an air outlet (13) arranged on the other side of the filter box (1), and a discharge pipe (14) arranged at the lower end of the filter box (1), wherein a filter bag (16) is arranged inside the filter box (1), characterized in that: Also includes: A sealing unit (2), arranged on the filter box (1) and used for sealing the filter box (1); A dust cleaning device, arranged on the filter box (1), for preliminarily cleaning dust on the filter bag (16); A dust cleaning unit (6) is arranged on the filter box (1) and corresponds to the filter bag (16), and is used to further clean the dust on the filter bag (16).

2. A metal filter bag filter according to claim 1, characterized in that: The filter box (1) is provided with a partition (17) for installing the filter bag (16) inside, and the cleaning unit (6) comprises a ring (61) sleeved on the filter bag (16), a brush (611) fixed on the inner side of the ring (61), a side plate (62) arranged on the outer side of the ring (61), a support rod (63) fixed at the lower end of the partition (17) and a bottom plate (64) fixed at the lower end of the support rod (63), the side plate (62) is sleeved on the support rod (63), a pull rope (66) is fixed at the lower end of the side plate (62), and the support rod (63) is located between the side plate (62) and the bottom plate (64) and is sleeved with an elastic member (65).

3. A metal filter bag filter according to claim 2, characterized in that: The pull rope (66) passes through the filter box (1) and is provided with a pull ring (68) on one side outside the filter box (1), and a guide wheel (67) for guiding the pull rope (66) is provided on the bottom plate (64).

4. A metal filter bag filter according to claim 3, characterized in that: The pull rope (66) is provided with a baffle (69), and the baffle (69) is located outside the filter box (1).

5. The metal filter bag filter according to claim 1, characterized in that: The dust cleaning device comprises a pulse generator (3) fixed on the outside of the filter box (1), a pulse valve (31) arranged on the pulse generator (3) and passing through the filter box (1), a connecting pipe (32) arranged on the pulse valve (31), and a spray pipe (33) opened at the lower end of the connecting pipe (32) at a position corresponding to the filter bag (16), wherein the connecting pipe (32) is located above the filter bag (16).

6. The metal filter bag filter according to claim 1, characterized in that: The sealing unit (2) comprises a connection frame (21) fixed to the upper end of the filter box (1), an inner door (22) arranged at the bottom of the connection frame (21), an outer door (23) arranged at the top of the connection frame (21), and a weight flap valve (24) arranged on the discharge pipe (14), wherein the weight flap valve (24) is provided in three groups.

7. The metal filter bag filter according to claim 1, characterized in that: A discharge plate (11) is provided between the filter box (1) and the discharge pipe (14); a striking motor (5) is fixed to one side of the discharge plate (11); and an observation window (15) is provided on the other side of the discharge plate (11).

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