Pulse bag type dust collector for ore processing in mine field

Abstract

The invention belongs to the technical field of bag type dust collection, and discloses an ore processing pulse bag type dust collector for a mine field, the ore processing pulse bag type dust collector comprises a support, a cleaning bin and a dust hopper, the left bottom and the right top of the cleaning bin are sequentially provided with an air inlet pipe and an exhaust pipe, and the inner wall of the cleaning bin is provided with a partition plate; a plurality of groups of filter bags which are distributed in a matrix are fixedly mounted at the top of the partition plate, a transfer bin is fixedly mounted at the bottom of the inner wall of the cleaning bin, and an air inlet which communicates with and coincides with the air inlet pipe is formed in the left side of the transfer bin. According to the device, high-pressure dust-containing air flow from the air inlet pipe is converged through the inner cavity of the transfer bin and finally is obliquely and upwards sprayed out through the air outlet pipe, spiral ascending air flow from bottom to top is formed in the inner cavity of the cleaning bin, and the tip movement direction of the dust-containing air flow is spirally changed, so that any part of the outer surface of the filter bag can be uniformly covered; therefore, the uniformity of the filter bag during filtering is ensured, and the maintenance period of the device is effectively prolonged.

Description

Technical Field

[0001] The present invention belongs to the technical field of bag dust collectors, and particularly relates to a pulse bag dust collector for ore processing in a mine. Background Art

[0002] A bag dust collector is a dry dust filtering device, suitable for collecting fine, dry and non-fibrous dust. Its filter bags are generally made of textile fabrics or non-woven felts, and the dust-containing air is filtered by the filtering action of the fiber fabric. When processing ores in a mine, a large amount of dust is generally generated. In order to avoid environmental pollution caused by directly discharging the dust into the atmosphere, a pulse bag dust collector comes in handy. The pulse bag dust collector consists of filter bags, ash hoppers, blow pipes and electromagnetic pulse control valves arranged at the top. The dust in the dust-containing air is blocked outside the filter bags. When cleaning the filter bags, the electromagnetic pulse control valve is opened, so that compressed air enters the filter bags through the blow pipes in a very short time, forming an air wave, causing the filter bags to expand and vibrate sharply from the bag mouth to the bottom, resulting in a strong dust cleaning effect and shaking off the dust on the filter bags. The shaken-off dust will fall downward into the ash hopper, so that the filter bags can be regenerated. In the prior art, the air inlet is arranged on the side of the device, so that the dust-containing air enters the multiple groups of filter bags arranged in an array in the device horizontally. This air inlet mode and air inlet direction will cause the dust interception amount on the surfaces of different filter bags to be not uniform enough. The filter bags near the air inlet generally reach the highest filtration limit first (the dust attached to the surface increases to the extent that the air resistance becomes larger, reducing the air intake volume and unable to maintain the normal filtration function). At this time, the part of the filter bag facing the air inlet side will reach the maximum filtration limit first. For the filtration system composed of multiple groups of filter bags, this non-uniform distribution mode affects the normal progress of the filtration work. The non-uniform filtration mode leads to a shorter cycle of the filtration function of cleaning and regenerating the filter bags each time, increasing the maintenance cost of the device. Therefore, it is urgently needed to be solved. Summary of the Invention

[0003] The purpose of the present invention is to provide a pulse bag dust collector for ore processing in a mine to solve the problems raised in the above background art.

[0004] To achieve the above object, the present invention provides the following technical solution: A pulse bag filter for ore processing in a mine, comprising a support, a cleaning chamber and a hopper. An intake pipe and an exhaust pipe are sequentially installed at the left bottom and the right top of the cleaning chamber. A partition is installed on the inner wall of the cleaning chamber. A plurality of filter bags distributed in a matrix are fixedly installed on the top of the partition. A transfer chamber is fixedly installed at the bottom of the inner wall of the cleaning chamber. An air inlet communicating with and coinciding with the intake pipe is opened on the left side of the transfer chamber. A plurality of upper exhaust ports are opened on the top of the transfer chamber and a plurality of ventilation pipes are fixedly connected thereto. A plurality of side exhaust ports are opened on the periphery of the inner wall of the transfer chamber. A plurality of outlet pipes communicating with the side exhaust ports are fixedly connected inside the transfer chamber. The opening of the outlet pipe is inclined upward. A sealing plate is hermetically clamped in the inner cavity of the transfer chamber. A through hole coinciding with the side exhaust port is opened on the inner wall of the sealing plate. Support columns are fixedly installed at the four corners of the inner wall of the transfer chamber. The support columns are upwardly adapted to penetrate through the sealing plate. A spring is movably sleeved on the outer surface of the support column. The two ends of the spring are elastically connected to the sealing plate and the transfer chamber respectively. A sealing strip is adhesively attached to the top of the sealing plate. The sealing strip abuts against the upper exhaust port and forms a seal. An expansion rod is fixedly installed at the left rear side of the inner wall of the transfer chamber. The telescopic end of the expansion rod is fixedly connected with a moving plate. The air inlet and the moving plate are distributed in a front-rear staggered manner.

[0005] As a preferred embodiment of the present invention, the cleaning chamber is located at the top of the hopper and is fixedly welded to the hopper. Four groups of supports are provided and are installed equidistantly in a circle at the bottom of the hopper. A cleaning mechanism is installed on the top of the cleaning chamber. The exhaust end of the cleaning mechanism extends to the top of the inner cavity of the cleaning chamber and is vertically opposite to the top openings of a plurality of filter bags respectively.

[0006] As a preferred embodiment of the present invention, an anti-dust accumulation frame is fixedly installed on the top of the transfer chamber. The ventilation pipe is adapted to penetrate through the anti-dust accumulation frame. The cross-sectional shape of the anti-dust accumulation frame is a right triangle.

[0007] As a preferred embodiment of the present invention, four groups of ventilation pipes are provided and are distributed equidistantly in a rectangle on the top of the transfer chamber. The top of the ventilation pipe is designed with a pointed opening.

[0008] As a preferred embodiment of the present invention, the ventilation pipe is located in the peripheral rectangular area of the filter bag. The top of the ventilation pipe is higher than the vertical midpoint of the filter bag.

[0009] As a preferred embodiment of the present invention, the sealing strip is made of a rubber block. The sealing strip is of a rectangular frame structure and can completely cover the upper exhaust port.

[0010] As a preferred embodiment of the present invention, a card slot is provided at the bottom of the moving plate, and a card plate is movably clamped inside the card slot. The bottoms of the card plate and the moving plate are both in contact with the sealing plate.

[0011] As a preferred embodiment of the present invention, limiting bars are fixedly installed on both the front and rear sides of the moving plate, and the limiting bars limit the displacement of the card plate in the front-rear direction.

[0012] The beneficial effects of the present invention are as follows:

[0013] 1. The device is redesigned. A transfer bin is set up and the air inlet mode of the device is changed, so that the dust-containing air entering the cleaning bin can uniformly contact all filter bags at the same time, maintaining the uniformity of the filter bags during the filtering process. By providing an air outlet pipe fixedly connected to the inner periphery of the transfer bin, it can jet the dust-containing air obliquely upward. By providing a support column with a spring and a sealing plate movably sleeved on its outer surface, the spring elastically supports the sealing plate upward, so that the sealing plate with openings on its surface can drive the sealing strip upward to abut against the top of the inner wall of the transfer bin and form a seal for the upper exhaust port. At this time, the openings are communicated with and correspond to the side exhaust ports opened inside the transfer bin, so that the high-pressure dust-containing air flow from the air inlet pipe converges in the inner cavity of the transfer bin and finally jets obliquely upward through the air outlet pipe, forming a spiral upward air flow from bottom to top in the inner cavity of the cleaning bin. The tip movement direction of the dust-containing air flow changes spirally, so that any part of the outer surface of the filter bag can be evenly covered, thus ensuring the uniformity of the filter bag during filtering and effectively extending the maintenance cycle of the device.

[0014] 2. Then, the device also has a telescopic rod located at the rear side of the inner cavity of the transfer bin. By pushing the moving plate and the card plate forward, the whole moving plate just blocks the air inlet direction where the air inlet pipe is communicated with the air inlet. When the filter bag needs to be cleaned by pulsed high-pressure air vibration, the high-pressure air flow from the air inlet pipe is redirected by the moving plate to be vertically downward and directly presses on the sealing plate, pushing the sealing plate downward, so that the openings and the side exhaust ports are staggered, blocking the side exhaust ports and the air outlet pipe. At the same time, the sealing plate drives the sealing strip downward to disengage from the abutting seal with the inner wall of the transfer bin, so that the air converging in the inner cavity of the transfer bin is discharged upward into the inner cavity of the cleaning bin through the air pipe. After the dust on the surface of the filter bag is vibrated off, the air jetting upward from the air pipe acts downward along the limiting and guiding direction of the partition plate and pushes the dust vibrated off the surface of the filter bag downward. This not only enables the device to continue to input air during cleaning without stopping, but also improves the cleaning efficiency of the filter bag.

[0015] 3. Finally, the device uses the clamping plate that is movably clamped to the inner wall of the card slot to assist in guiding the movement of the high-pressure air flow from the air inlet pipe. When the sealing plate moves downward under the push of the high-pressure air flow, the bottom of the moving plate will disengage from the abutment with the top of the sealing plate. At this time, the clamping plate will automatically slide downward under the action of gravity and always maintain the abutment with the top of the sealing plate, so that the high-pressure air flow horizontally to the right from the air inlet pipe is completely guided to the downward side, avoiding the loss of air kinetic energy and reducing the air flow before the through hole and the side exhaust port are completely staggered. Description of the Drawings

[0016] Figure 1 is a front three-dimensional schematic diagram of the overall structure of the present invention;

[0017] Figure 2 is a front sectional schematic diagram of the overall structure of the present invention;

[0018] Figure 3 For the present invention Figure 2 is an enlarged schematic diagram of the structure at A in;

[0019] Figure 4 is a side sectional schematic diagram of the overall structure of the present invention;

[0020] Figure 5 is an internal structure schematic diagram of the cleaning bin of the present invention;

[0021] Figure 6 is a top sectional schematic diagram of the cleaning bin of the present invention;

[0022] Figure 7 is an internal side schematic diagram of the cleaning bin of the present invention;

[0023] Figure 8 is a separation schematic diagram of the transfer bin, the upper exhaust port, the ventilation pipe, the anti-dust accumulation frame, the side exhaust port, the air outlet pipe, the support column, the spring, the sealing plate, the sealing strip, the telescopic rod and the moving plate of the present invention;

[0024] Figure 9 For the present invention Figure 8 is an enlarged schematic diagram of the structure at B in.

[0025] In the figure: 1. Bracket; 2. Cleaning bin; 3. Ash hopper; 4. Air inlet pipe; 5. Exhaust pipe; 6. Cleaning mechanism; 7. Partition board; 8. Filter bag; 9. Transfer bin; 10. Upper exhaust port; 11. Ventilation pipe; 12. Anti-dust accumulation frame; 13. Side exhaust port; 14. Air outlet pipe; 15. Support column; 16. Spring; 17. Sealing plate; 18. Through hole; 19. Sealing strip; 20. Air inlet; 21. Telescopic rod; 22. Moving plate; 23. Card slot; 24. Clamping plate; 25. Limit strip. Detailed Embodiment

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] As Figures 1 to 9 shown, an ore processing pulse bag filter for a mine field provided by an embodiment of the present invention includes a support 1, a cleaning bin 2 and a hopper 3. An air inlet pipe 4 and an exhaust pipe 5 are sequentially installed at the left bottom and the right top of the cleaning bin 2. A partition 7 is installed on the inner wall of the cleaning bin 2. A plurality of filter bags 8 distributed in a matrix are fixedly installed at the top of the partition 7. A transfer bin 9 is fixedly installed at the bottom of the inner wall of the cleaning bin 2. An air inlet 20 communicating with and coinciding with the air inlet pipe 4 is opened on the left side of the transfer bin 9. A plurality of upper exhaust ports 10 are opened at the top of the transfer bin 9 and are fixedly connected with a plurality of ventilation pipes 11. A plurality of side exhaust ports 13 are opened on the circumferences of the inner walls of the transfer bin 9. A plurality of air outlet pipes 14 communicating with the side exhaust ports 13 are fixedly connected inside the transfer bin 9. The openings of the air outlet pipes 14 are inclined upward. A sealing plate 17 is hermetically clamped in the inner cavity of the transfer bin 9. A through port 18 coinciding with the side exhaust port 13 is opened on the inner wall of the sealing plate 17. Support columns 15 are fixedly installed at the four corners of the inner wall of the transfer bin 9. The support columns 15 are upwardly adapted to penetrate through the sealing plate 17. A spring 16 is movably sleeved on the outer surface of the support column 15. The two ends of the spring 16 are elastically connected to the sealing plate 17 and the transfer bin 9 respectively. A sealing strip 19 is adhesively attached to the top of the sealing plate 17. The sealing strip 19 abuts against the upper exhaust port 10 to form a seal. A telescopic rod 21 is fixedly installed at the left rear side of the inner wall of the transfer bin 9. The telescopic end of the telescopic rod 21 is fixedly connected with a moving plate 22. The air inlet 20 and the moving plate 22 are distributed in a front-back staggered manner;

[0028] The device has been redesigned, a transfer bin 9 is provided and the air intake mode of the device is changed, so that the dust-containing air entering the cleaning bin 2 can contact all the filter bags 8 evenly and simultaneously, and the uniformity of the filter bags 8 during the filtering process is maintained. An air outlet pipe 14 is provided and fixedly connected to the inner side of the transfer bin 9 so that the dust-containing air can be sprayed obliquely upward. A support 15 is provided and a spring 16 and a sealing plate 17 are movably sleeved on the outer surface of the support 15 so that the spring 16 elastically supports the sealing plate 17 upward, so that the sealing plate 17 with a through hole 18 on the surface can drive the sealing strip 19 It abuts against the top of the inner wall of the transfer bin 9 upward and forms a seal with the upper exhaust port 10. At this time, the through port 18 and the side exhaust port 13 opened on the inner side of the transfer bin 9 are connected and correspond to each other, so that the high-pressure dust-laden airflow from the air inlet pipe 4 converges through the inner cavity of the transfer bin 9, and finally sprays upward obliquely through the air outlet pipe 14, forming a spiral upward airflow from bottom to top in the inner cavity of the cleaning bin 2. The tip movement direction of the dust-laden airflow changes in a spiral manner, so that any part of the outer surface of the filter bag 8 can be evenly covered, thereby ensuring the uniformity of the filter bag 8 during filtration and effectively extending the maintenance cycle of the device.

[0029] Then, the device is also provided with a telescopic rod 21 located at the rear side of the inner cavity of the transfer bin 9, through which the movable plate 22 and the clamping plate 24 are pushed forward, so that the movable plate 22 as a whole just blocks the air intake direction of the air intake pipe 4 connected with the air inlet 20. When it is necessary to perform pulse high-pressure air vibration cleaning on the filter bag 8, the movable plate 22 is used to change the direction of the high-pressure air flow from the air intake pipe 4 to make it vertically downward, and directly apply pressure to the sealing plate 17 to push the sealing plate 17 downward, so that the through port 18 and the side exhaust port 13 are staggered, and the side exhaust port 13 and the outlet port 20 are blocked. The air pipe 14, at the same time, uses the sealing plate 17 to drive the sealing strip 19 downward and break away from the abutment seal with the inner wall of the transfer bin 9, so that the air gathered in the inner cavity of the transfer bin 9 is discharged upward through the ventilation pipe 11 into the inner cavity of the cleaning bin 2. After the dust on the surface of the filter bag 8 is vibrated off, the airflow ejected upward from the ventilation pipe 11 is guided downward in the limiting direction of the partition 7, and the dust vibrated off the surface of the filter bag 8 is pushed downward, which not only makes the device do not need to stop the air input during cleaning, but also improves the cleaning efficiency of the filter bag 8.

[0030] The cleaning bin 2 is located at the top of the ash hopper 3 and is welded and fixed to the ash hopper 3. The bracket 1 is arranged in four groups and is equidistantly installed at the bottom of the ash hopper 3 in a circle. A cleaning mechanism 6 is installed at the top of the cleaning bin 2. The exhaust end of the cleaning mechanism 6 extends to the top of the inner cavity of the cleaning bin 2 and is vertically opposite to the top openings of the multiple groups of filter bags 8 respectively.

[0031] When the device is working, air is taken in through the air inlet pipe 4 and exhausted obliquely upward through the air outlet pipe 14 , filtered by the filter bag 8 , and the filtered air passes upward through the filter bag 8 and is exhausted along the exhaust pipe 5 .

[0032] Among them, a dust-proof frame 12 is fixedly installed on the top of the transfer bin 9, and the ventilation pipe 11 is adapted to penetrate the dust-proof frame 12, and the cross-sectional shape of the dust-proof frame 12 is a right triangle;

[0033] When the dust on the surface of the filter bag 8 is shaken off by vibration, a part of it may fall on the upper surface of the anti-dust accumulation frame 12, and the inclined surface of the anti-dust accumulation frame 12 just makes the dust fall downward and prevents the dust from accumulating.

[0034] The ventilation pipes 11 are arranged in four groups and are evenly distributed on the top of the transfer bin 9 in a rectangular shape. The top of the ventilation pipes 11 is designed with a pointed opening.

[0035] The ventilation pipe 11 is used to assist the device in taking in air upward when the filter bag 8 is in the cleaning stage, so that the device can also take in air during the cleaning stage. During the filtering process, the high-pressure airflow ejected upward from the ventilation pipe 11 moves vertically downward under the limit of the partition 7, and assists in cleaning the dust on the surface of the filter bag 8, and the tip opening design of the ventilation pipe 11 can prevent dust from falling into it.

[0036] The ventilation pipe 11 is located in the outer rectangular area of ​​the filter bag 8, and the top of the ventilation pipe 11 is higher than the vertical midpoint of the filter bag 8;

[0037] The ventilation pipe 11 is located in the peripheral area of ​​the filter bag 8, which minimizes the impact of the ventilation pipe 11 on the cleaning of the filter bag 8.

[0038] The sealing strip 19 is made of a rubber block and has a rectangular frame structure. The sealing strip 19 can completely cover the upper exhaust port 10.

[0039] The sealing strip 19 will be deformed when squeezed between the sealing plate 17 and the transfer bin 9 , and the upper exhaust port 10 will be blocked.

[0040] The bottom of the movable plate 22 is provided with a card slot 23, and a card plate 24 is movably connected inside the card slot 23. The card plate 24 and the bottom of the movable plate 22 are both in contact with the sealing plate 17.

[0041] The device utilizes a card plate 24 movably connected to the inner wall of the card slot 23 to assist in guiding the high-pressure airflow from the air intake pipe 4. When the sealing plate 17 moves downward under the push of the high-pressure airflow, the bottom of the movable plate 22 will be separated from the abutment with the top of the sealing plate 17. At this time, the card plate 24 automatically slides downward under the action of gravity and always maintains abutment with the top of the sealing plate 17, so that the horizontal right-directed high-pressure airflow from the air intake pipe 4 is completely guided to the downward side, avoiding the loss of air kinetic energy, and reducing air circulation before the through port 18 and the side exhaust port 13 are completely offset.

[0042] Wherein, limiting bars 25 are fixedly installed on both the front and rear sides of the moving plate 22, and the limiting bars 25 limit the displacement of the clamping plate 24 in the front and rear directions;

[0043] The clamping plate 24 is movably clamped to the inner wall of the clamping groove 23, and limiting bars 25 on both its front and rear sides limit it. When the telescopic rod 21 drives the moving plate 22 to move forward or backward, the moving plate 22 is likely to leave the clamping groove 23 under the action of the frictional force generated on the surface of the sealing plate 17. At this time, the limiting bars 25 can block and limit the relative movement of the clamping plate 24 in the front and rear directions.

[0044] Working principle:

[0045] First, connect the air inlet pipe 4 to the fan and introduce high-pressure dust-containing air to form a high-pressure dust-containing air flow. As shown in, the dust-containing high-pressure air flow passes through the air inlet 20 to the right and enters the inner cavity of the transfer bin 9. Then, the high-pressure dust-containing air flow quickly diffuses in the inner cavity of the transfer bin 9 and is sprayed obliquely upward along the four groups of air outlet pipes 14 distributed on the inner side of the transfer bin 9. The sprayed high-pressure dust-containing air flow accelerates and moves spirally upward. When it passes through multiple groups of filter bags 8 distributed in a matrix, since the overall forward direction of the high-pressure dust-containing air flow is from bottom to top, it first ensures that the high-pressure dust-containing air flow can evenly contact the outer surfaces of all the filter bags 8. At the same time, the high-pressure dust-containing air flow spirally upward continuously changes the movement direction, so that the air is scattered in the dust and the dust content near the filter bags 8 is basically the same; Figure 2 、 3 Then, the air passes through the surface of the filter bag 8 and enters its interior. Dust with large particles and high specific gravity will settle down due to the action of gravity and fall into the ash hopper 3, while fine dust is blocked by the outer surface of the filter bag 8 and left. The purified air moves upward from the interior of the filter bag 8 to the top of the inner cavity of the cleaning bin 2 and is discharged along the exhaust pipe 5 to the atmosphere;

[0046] Then, when a large amount of dust adheres to the outer surface of the filter bag 8 and it can no longer perform effective filtering work, start the telescopic rod 21 and push the moving plate 22 forward so that the moving plate 22 just blocks the air inlet 20. At this time, the high-pressure dust-containing air flow from the air inlet pipe 4 is guided by the moving plate 22 and changes its direction downward to generate a thrust on the sealing plate 17, causing the sealing plate 17 to move downward and compress the spring 16. At this time, the through hole 18 and the side exhaust port 13 are gradually completely staggered, the through hole 18 cannot discharge gas, the side exhaust port 13 and the air outlet pipe 14 are blocked, and the sealing plate 17 drives the sealing strip 19 to move downward and disengages from the blockage of the upper exhaust port 10. At this time, the high-pressure dust-containing air flow in the inner cavity of the transfer bin 9 is discharged upward to the inner cavity of the cleaning bin 2 through the upper exhaust port 10 and the ventilation pipe 11;

[0047] Then, when a large amount of dust adheres to the outer surface of the filter bag 8 and it can no longer perform effective filtering work, start the telescopic rod 21 and push the moving plate 22 forward so that the moving plate 22 just blocks the air inlet 20. At this time, the high-pressure dust-containing air flow from the air inlet pipe 4 is guided by the moving plate 22 and changes its direction downward to generate a thrust on the sealing plate 17, causing the sealing plate 17 to move downward and compress the spring 16. At this time, the through hole 18 and the side exhaust port 13 are gradually completely staggered, the through hole 18 cannot discharge gas, the side exhaust port 13 and the air outlet pipe 14 are blocked, and the sealing plate 17 drives the sealing strip 19 to move downward and disengages from the blockage of the upper exhaust port 10. At this time, the high-pressure dust-containing air flow in the inner cavity of the transfer bin 9 is discharged upward to the inner cavity of the cleaning bin 2 through the upper exhaust port 10 and the ventilation pipe 11;

[0048] Finally, start the cleaning mechanism 6, inject compressed air into the interior of the filter bag 8, and form an air wave, causing the entire filter bag 8 to be rapidly expanded and shock-vibrated. The dust adhering to the outer surface of the filter bag 8 is shaken off and falls downward into the ash hopper 3. At the same time, the high-pressure dust-containing air flow discharged downward in the air pipe 11 turns downward when it encounters the partition plate 7, and assists in blowing and cleaning the outer surface of the filter bag 8;

[0049] When the sealing plate 17 moves downward, the clamping plate 24 synchronously moves downward under the action of gravity and remains in contact with the sealing plate 17, facilitating the downward guidance of the high-pressure dust-containing air flow from the air inlet pipe 4. When the cleaning of the filter bag 8 is completed, control the telescopic rod 21 to drive the moving plate 22 backward, changing the impact direction of the high-pressure dust-containing air flow from the air inlet pipe 4, causing the sealing plate 17 to lose the downward thrust. At this time, the spring 16 resumes and drives the sealing plate 17 to reset upward, and the sealing strip 19 is re-abutted to block the upper exhaust port 10, and the side exhaust port 13 is re-connected to the through port 18.

[0050] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0051] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pulse bag dust collector for ore processing in a mine, comprising a bracket (1), a cleaning chamber (2) and a ash hopper (3), wherein an air inlet pipe (4) and an exhaust pipe (5) are sequentially installed at the left bottom and the right top of the cleaning chamber (2), a partition (7) is installed on the inner wall of the cleaning chamber (2), and a plurality of groups of filter bags (8) distributed in a matrix are fixedly installed on the top of the partition (7), characterized in that: A transfer bin (9) is fixedly installed at the bottom of the inner wall of the cleaning bin (2); an air inlet (20) communicating with and overlapping the air inlet pipe (4) is provided on the left side of the transfer bin (9); a plurality of upper exhaust ports (10) are provided on the top of the transfer bin (9) and a plurality of ventilation pipes (11) are fixedly connected thereto; a plurality of side exhaust ports (13) are provided around the inner wall of the transfer bin (9); a plurality of outlet pipes (14) communicating with the side exhaust ports (13) are fixedly connected to the inner side of the transfer bin (9); the openings of the outlet pipes (14) are tilted upward; a sealing plate (17) is sealed and clamped to the inner cavity of the transfer bin (9); a through port (20) overlapping the side exhaust port (13) is provided on the inner wall of the sealing plate (17); 18), pillars (15) are fixedly installed at the four corners of the inner wall of the transfer bin (9), the pillars (15) are adapted to penetrate the sealing plate (17) upwards, the outer surface of the pillars (15) is movably sleeved with a spring (16), the two ends of the spring (16) are elastically connected to the sealing plate (17) and the transfer bin (9) respectively, the top of the sealing plate (17) is glued with a sealing strip (19), the sealing strip (19) abuts against the upper exhaust port (10) and forms a seal, a telescopic rod (21) is fixedly installed on the left rear side of the inner wall of the transfer bin (9), the telescopic end of the telescopic rod (21) is fixedly connected to a movable plate (22), and the air inlet (20) and the movable plate (22) are staggered front and back.

2. The pulse bag dust collector for ore processing in a mine according to claim 1, characterized in that: The cleaning bin (2) is located at the top of the ash hopper (3) and is welded and fixed to the ash hopper (3). The bracket (1) is arranged in four groups and is equidistantly installed at the bottom of the ash hopper (3) in a circular pattern. A cleaning mechanism (6) is installed at the top of the cleaning bin (2). The exhaust end of the cleaning mechanism (6) extends to the top of the inner cavity of the cleaning bin (2) and is vertically opposite to the top openings of the multiple groups of filter bags (8).

3. The pulse bag dust collector for ore processing in a mine according to claim 2, characterized in that: An anti-dust accumulation frame (12) is fixedly installed on the top of the transfer bin (9), the ventilation pipe (11) is adapted to pass through the anti-dust accumulation frame (12), and the cross-sectional shape of the anti-dust accumulation frame (12) is a right triangle.

4. The pulse bag dust collector for ore processing in a mine according to claim 3 is characterized in that: The ventilation pipes (11) are arranged in four groups and are evenly distributed in a rectangular shape on the top of the transfer bin (9). The top of the ventilation pipes (11) is designed with a pointed opening.

5. The pulse bag dust collector for ore processing in a mine according to claim 4, characterized in that: The ventilation pipe (11) is located in the outer rectangular area of ​​the filter bag (8), and the top of the ventilation pipe (11) is higher than the vertical midpoint of the filter bag (8).

6. The pulse bag dust collector for ore processing in a mine according to claim 5, characterized in that: The sealing strip (19) is made of a rubber block and is a rectangular frame structure. The sealing strip (19) can completely cover the upper exhaust port (10).

7. The pulse bag dust collector for ore processing in a mine according to claim 6, characterized in that: A clamping groove (23) is provided at the bottom of the movable plate (22), a clamping plate (24) is movably clamped inside the clamping groove (23), and the bottom of the clamping plate (24) and the movable plate (22) are both in contact with the sealing plate (17).

8. The pulse bag dust collector for ore processing in a mine according to claim 7, characterized in that: Limiting strips (25) are fixedly mounted on both the front and rear sides of the movable plate (22), and the limiting strips (25) limit the displacement of the clamping plate (24) in the front and rear directions.

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