A coke oven gas dust and mist removal equipment based on multi-stage composite filtration

Abstract

The application discloses coke oven gas dust and mist removal equipment based on multi-stage composite filtration and belongs to the technical field of coke oven gas purification treatment. The equipment comprises a filter pipe, an air suction pump is arranged on one side of the filter pipe, a plurality of filter assemblies are slidably arranged on the lower side in the filter pipe, the filter assembly comprises a filter plate, two sliding grooves are formed in the positions corresponding to the filter plate on the inner wall of the filter pipe, a sliding block is slidably arranged in the sliding groove, a guide groove is formed in one end of the sliding groove, and a driving assembly is arranged in the guide groove. The filter assembly can be turned over under the action of the driving assembly, so that the orientation of the filter plate is changed, solid particles cannot block the filter plate, the filter plate cannot normally function, the filter material on the turned-over filter plate can be blown away by flowing air, the filter plate without the filter material can continue to filter the passing air, and the equipment is simple and convenient to use and does not need to be shut down for operation.

Description

Technical Field

[0001] This invention relates to the field of coke oven gas purification technology, and more specifically, to a coke oven gas dust removal and demisting device based on multi-stage composite filtration. Background Technology

[0002] Coke oven gas dust and mist removal refers to the process of removing dust and mist droplets contained in coke oven gas. This is crucial for protecting downstream equipment, improving gas quality, and reducing environmental pollution. Coke oven gas typically contains coke powder, coal powder, iron oxide dust, as well as impurities such as tar mist and water mist.

[0003] Typically, an air pump is used to extract air from the coke oven, causing dust, water mist, or tar mist to be drawn out along with the air. During the extraction process, the air is filtered to separate solid particles from the gas for subsequent processing. However, in traditional dust and mist removal systems, the large amount of solid particles generated inside the coke oven frequently clogs the filters during air extraction, requiring frequent filter replacements. These replacements necessitate shutting down the dust and mist removal system, severely impacting its efficiency. Furthermore, failure to replace filters in a timely manner can prevent the timely removal of dust, water mist, or tar mist from the coke oven, resulting in poor performance. Summary of the Invention

[0004] To address the problems existing in the prior art, the purpose of this invention is to provide a coke oven gas dust removal and demisting device based on multi-stage composite filtration.

[0005] To solve the above problems, the present invention adopts the following technical solution.

[0006] A coke oven gas dust and mist removal device based on multi-stage composite filtration includes a filter tube, an air suction pump on one side of the filter tube, and multiple filter components slidably installed on the lower side inside the filter tube, the filter components being used to filter the passing air.

[0007] The filter assembly includes a filter plate. Two sliding grooves are opened on the inner wall of the filter tube at positions corresponding to the filter plate. A slider is slidably installed inside the sliding groove, and the end of the slider near the filter plate is fixedly connected to the filter plate.

[0008] One end of the slide is provided with a guide groove, and a driving component is installed inside the guide groove. The driving component includes a driving rod that passes through the slider. The driving rod is rotatably connected to the filter plate. A gear is fixedly installed at the end of the driving rod away from the filter plate. An elastic pawl is rotatably installed on the inner wall of the guide groove. The gear and the elastic pawl mesh for transmission.

[0009] Furthermore, a sealing gasket is fixedly installed on the outer wall of the filter plate, and the filter plate is pressed into contact with the inner wall of the filter tube through the sealing gasket.

[0010] Furthermore, a rotating groove is provided at the upper end of the slide, the size of which is larger than the size of the slider. A cavity is provided inside the slider, and a torsion spring is sleeved on the outer wall of the driving rod at the position corresponding to the cavity. One end of the torsion spring is fixedly connected to the outer wall of the driving rod, and the other end of the torsion spring is fixedly connected to the inner wall of the cavity.

[0011] Furthermore, multiple shrinkage grooves are provided at the rotatable connection between the filter plate and the drive rod. An elastic clamp is slidably installed inside the shrinkage groove. The elastic clamp is elastically connected to the inner wall of the shrinkage groove through a compression spring. A slot is provided at the position corresponding to the drive rod and the elastic clamp. The end of the elastic clamp close to the slot is pressed against the inner wall of the slot. Both sides of the slot have an arc-shaped structure.

[0012] Furthermore, two air extraction ports are provided on the upper outer wall of the filter tube. The air extraction ports are connected to the air pump through pipes. A collection frame is installed on the upper side inside the filter tube, and the collection frame corresponds to the position of the air extraction ports located on the upper side.

[0013] Furthermore, a filter frame is fixedly installed inside the filter tube at a position corresponding to the upper air extraction port, and the size of the filter frame on the side closer to the air extraction port is larger than the size of the air extraction port.

[0014] Furthermore, the collection frame has a feed inlet at one end, and a first sealing plate is provided on one side of the feed inlet. The first sealing plate is slidably connected to the collection frame through a guide rod. A return spring is sleeved on the outside of the guide rod. One end of the return spring is fixedly connected to the guide rod, and the other end of the return spring is fixedly connected to the collection frame.

[0015] Furthermore, a movable groove is provided inside the side wall of the filter tube, and a second sealing plate is slidably installed inside the movable groove. The second sealing plate has two through holes, and the size of the through holes is the same as the size of the air extraction port.

[0016] Furthermore, a top rod is fixedly installed at the lower end of the second sealing plate, and the lower end of the top rod extends through the movable groove into the interior of the sliding groove.

[0017] Furthermore, a connecting rod is provided between two adjacent driving rods, and the connecting rod is rotatably connected to the driving rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] (1) The present invention has a filter assembly that can be flipped under the action of the drive assembly, thereby changing the orientation of the filter plate. This avoids the filter plate from being blocked by solid particles and thus preventing it from playing its normal function. In addition, the filter material on the flipped filter plate can be blown away by the flowing air. The filter plate, which is no longer blocked by the filter material, can continue to filter the passing air. It is simple and convenient to use and does not require stopping the machine.

[0020] (2) The present invention has a flip-up filter plate that can clean the holes on the filter plate by air flow after flipping, so that the filter material in the holes is separated from the filter plate.

[0021] (3) The present invention can automatically flip the filter plate after it rises by setting the driving component, and after flipping, the filter plate can fall back to the initial position under the action of gravity to work.

[0022] (4) The present invention can automatically collect the filter material by means of a collection frame and an air pump during the movement of the second sealing plate, so that the filter material is separated from the exhaust gas, making it easy to collect and process separately. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the filter tube of the present invention;

[0025] Figure 3 This is a schematic diagram of the rotating groove portion of the present invention;

[0026] Figure 4 For the present invention Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0027] Figure 5 This is a schematic diagram of the internal structure of the slider of the present invention;

[0028] Figure 6 This is a schematic diagram of the card slot portion of the present invention;

[0029] Figure 7 This is a schematic diagram of the second sealing plate portion of the present invention;

[0030] Figure 8 This is a schematic diagram of the feed inlet portion of the present invention.

[0031] Explanation of the labels in the diagram:

[0032] 1. Filter tube; 101. Suction pump; 102. Slide groove; 103. Guide groove; 104. Elastic pawl; 105. Rotating groove; 106. Air extraction port; 107. Pipe; 108. Collection frame; 109. Filter frame; 110. Feed inlet; 111. First sealing plate; 112. Guide rod; 113. Return spring; 114. Movable groove; 115. Second sealing plate; 116. Through hole; 117. Top rod;

[0033] 2. Filter assembly; 201. Filter plate; 202. Slider; 203. Sealing gasket; 204. Cavity; 205. Shrinkage groove; 206. Elastic clamp; 207. Compression spring;

[0034] 3. Drive assembly; 301. Drive rod; 302. Gear; 303. Torsion spring; 304. Slot; 305. Connecting rod. Detailed Implementation

[0035] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0036] Please see Figures 1 to 8 A coke oven gas dust removal and demisting device based on multi-stage composite filtration includes a filter pipe 1, an air suction pump 101 on one side of the filter pipe 1, and multiple filter components 2 slidably installed on the lower side inside the filter pipe 1. The filter components 2 are used to filter the passing air.

[0037] The filter assembly 2 includes a filter plate 201. Two grooves 102 are opened on the inner wall of the filter tube 1 at positions corresponding to the filter plate 201. A slider 202 is slidably installed inside the groove 102. The end of the slider 202 near the filter plate 201 is fixedly connected to the filter plate 201.

[0038] A guide groove 103 is provided at one end of the slide 102. A driving component 3 is installed inside the guide groove 103. The driving component 3 includes a driving rod 301 that passes through the slider 202. The driving rod 301 is rotatably connected to the filter plate 201. A gear 302 is fixedly installed at the end of the driving rod 301 away from the filter plate 201. An elastic pawl 104 is rotatably installed on the inner wall of the guide groove 103. The gear 302 and the elastic pawl 104 mesh and drive each other. A sealing gasket 203 is fixedly installed on the outer wall of the filter plate 201. The filter plate 201 is pressed against the inner wall of the filter tube 1 through the sealing gasket 203. The sealing gasket 203 can fill the gap between the filter plate 201 and the filter tube 1. Furthermore, the deformation of the filter plate 201 when it rotates can facilitate the rotation of the filter plate 201 and prevent the filter plate 201 from getting stuck.

[0039] The upper end of the slide 102 is provided with a rotating groove 105. The size of the rotating groove 105 is larger than the size of the slider 202. The slider 202 is provided with a cavity 204. The outer wall of the driving rod 301 corresponding to the cavity 204 is fitted with a torsion spring 303. One end of the torsion spring 303 is fixedly connected to the outer wall of the driving rod 301, and the other end of the torsion spring 303 is fixedly connected to the inner wall of the cavity 204.

[0040] By adopting the above technical solution, when the air pump 101 is working, the pressure inside the filter tube 1 decreases. At this time, air from the coke oven can be drawn into the filter tube 1. When the air enters the filter tube 1, solid particles in the air are blocked by the filter plate 201 and accumulate at the lower end of the filter plate 201. As more and more particles accumulate, they will block the gaps on the filter plate 201. At this time, under the action of pressure difference, the filter plate 201 can rise. After the filter plate 201 rises, it can drive the slider 202 to rise. When the slider 202 rises, it can slide along the direction of the slide groove 102. When the slider 202 rises, it can drive the driving rod 301 to rise. When the driving rod 301 rises, it can drive the gear 302 fixedly connected to it. As the slide block 202 moves into the rotating groove 105, the gear 302 is blocked by the elastic pawl 104 and rotates. When the gear 302 rotates, it drives the rod 301 to rotate. When the rod 301 rotates, it pulls one end of the torsion spring 303, causing the torsion spring 303 to deform. When the slide block 202 moves into the rotating groove 105, the gear 302 is blocked by the elastic pawl 104. At this time, the torsion spring 303 can drive the slide block 202 to rotate under its own elastic force. After the slide block 202 rotates, the filter plate 201 can rotate 180 degrees. After the filter plate 201 rotates, its upper and lower positions will be interchanged. At this time, the air flow can push the solid particles on the filter plate 201, causing them to detach from the filter plate 201.

[0041] Multiple shrinkage grooves 205 are provided at the rotatable connection between the filter plate 201 and the drive rod 301. An elastic clamp 206 is slidably installed inside the shrinkage groove 205. The elastic clamp 206 is elastically connected to the inner wall of the shrinkage groove 205 through a compression spring 207. A slot 304 is provided at the corresponding position of the drive rod 301 and the elastic clamp 206. The end of the elastic clamp 206 near the slot 304 is in contact with the inner wall of the slot 304. Both sides of the slot 304 have an arc-shaped structure.

[0042] By adopting the above technical solution, when the filter plate 201 rotates 180 degrees, the elastic clamp 206 can squeeze the inner wall of the slot 304 under the action of the compression spring 207, so that the filter plate 201 is fixed. Furthermore, when the elastic clamp 206 squeezes the slot 304 with the inclined inner wall, the filter plate 201 that has not rotated to the designated position can continue to rotate under the action of the decomposition force of the squeezing force until the filter plate 201 rotates 180 degrees.

[0043] Two air extraction ports 106 are provided on the upper outer wall of the filter tube 1. The air extraction ports 106 are connected to the suction pump 101 through the pipe 107. A collection frame 108 is installed on the upper side of the inside of the filter tube 1. The lower end of the collection frame 108 is inclined. Solid particles falling from the filter frame 109 can accumulate on its lower side. When the suction pump 101 is pumping air, it can prevent a large amount of dust from clogging the filter frame 109, thus preventing external air from entering the collection frame 108 through the feed inlet 110. The collection frame 108 corresponds to the position of the upper air extraction ports 106. A filter frame is fixedly installed inside the filter tube 1 at the position corresponding to the upper air extraction ports 106. 109. When the suction pump 101 does not draw air through the upper suction port 106, the solid particles on the filter frame 109 will fall into the collection frame 108. The size of the filter frame 109 near the suction port 106 is larger than the size of the suction port 106. The collection frame 108 has a feed inlet 110 at one end. A first sealing plate 111 is provided on one side of the feed inlet 110. The first sealing plate 111 is slidably connected to the collection frame 108 through the guide rod 112. A return spring 113 is sleeved on the outside of the guide rod 112. One end of the return spring 113 is fixedly connected to the guide rod 112, and the other end of the return spring 113 is fixedly connected to the collection frame 108.

[0044] The filter tube 1 has a movable groove 114 inside its side wall. A second sealing plate 115 is slidably installed inside the movable groove 114. The second sealing plate 115 has two through holes 116. The size of the through holes 116 is the same as the size of the air extraction port 106. A top rod 117 is fixedly installed at the lower end of the second sealing plate 115. The lower end of the top rod 117 extends through the movable groove 114 and into the sliding groove 102.

[0045] By adopting the above technical solution, when the slider 202 rises to a certain position, the upper end of the slider 202 can squeeze the lower end of the push rod 117, thereby causing the push rod 117 to rise. After the push rod 117 rises, it can drive the second sealing plate 115 at its upper end to rise. When the second sealing plate 115 rises, it can cause the through hole 116 to rise. When the slider 202 rises to the uppermost side of the slide groove 102 but has not entered the interior of the rotating groove 105, the through hole 116 located on the lower side is no longer aligned with the air extraction port 106 on the lower side. When the slider 202 enters the interior of the rotating groove 105, the through hole 116 located on the upper side gradually aligns with the air extraction port 106 on the lower side. With the upper air intake 106 aligned, after the slider 202 enters the rotating groove 105, the torsion spring 303 pulls the slider 202 to rotate, causing the filter plate 201 to rotate. Simultaneously, the suction pump 101 draws air from the upper air intake 106 through the pipe 107. At this time, the air pressure inside the collection frame 108 decreases, causing the first sealing plate 111 to move. The movement of the first sealing plate 111 moves the guide rod 112, thereby compressing the return spring 113 and deforming it. The movement of the first sealing plate 111 allows the filter plate 201 to rotate. When the feed inlet 110 is opened, air in the coke oven can enter the collection frame 108 through the feed inlet 110. After the filter plate 201 is flipped, the solid particles that were originally located on its lower side will be located on its upper side. At this time, under the action of air flow, they can enter the feed inlet 110 with the air and be blocked by the filter frame 109 after entering the collection frame 108. After the filter plate 201 rotates 180 degrees, the slider 202 will drive the filter plate 201 to descend along the direction of the slide groove 102 under the action of gravity, so that the slider 202 and the filter plate 201 descend to the initial position. As the slider 202 descends, it drives the driving rod 301 and gear 302 to descend as well. When the gear 302 descends, it squeezes the other end of the elastic pawl 104, causing it to rotate. During this process, the gear 302 does not rotate. After the slider 202 descends to a certain position, the top rod 117 and the second sealing plate 115 descend so that the upper through hole 116 is no longer aligned with the upper air extraction port 106, and the lower through hole 116 is aligned with the lower air extraction port 106, so that the suction pump 101 can draw air from the lower air extraction port 106 through the pipe 107.

[0046] A connecting rod 305 is provided between two adjacent driving rods 301, and the connecting rod 305 is rotatably connected to the driving rod 301.

[0047] By adopting the above technical solution, when the slider 202 moves, the driving rod 301 can move multiple driving rods 301 simultaneously through the connecting rod 305.

[0048] Usage: Install the lower end of the filter tube 1 on the coke oven. Then, use the suction pump 101 to draw air from the coke oven. The flowing air carries away solid particles and mist from the coke oven. During the air flow, the air passes through the filter plate 201 and is filtered by the filter plate 201, thus separating the solids from the drawn air. After the filter plate 201 filters out too many solid particles, the holes on the filter plate 201 are blocked. At this time, under the action of pressure difference, the filter plate 201 can drive the slider 202 to move. After the slider 202 moves into the rotating groove 105, it rotates, so that the solids that were originally located at the lower end of the filter plate 201 are located on the upper side of the filter plate 201. By opening different air extraction ports 106, the filtered solids are collected in the collection frame 108 for storage, reducing the frequency of replacing the filter plate 201 and allowing the filter plate 201 to work continuously.

[0049] The above are merely preferred embodiments of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concept, should be covered within the scope of protection of the present invention.

Claims

1. A coke oven gas dust and mist removal device based on multi-stage composite filtration, comprising a filter tube (1), characterized in that: The filter tube (1) is provided with an air pump (101) on one side. Multiple filter components (2) are slidably installed on the lower side inside the filter tube (1). The filter components (2) are used to filter the passing air. The filter assembly (2) includes a filter plate (201). Two sliding grooves (102) are opened on the inner wall of the filter tube (1) at positions corresponding to the filter plate (201). A slider (202) is slidably installed inside the sliding groove (102). The end of the slider (202) near the filter plate (201) is fixedly connected to the filter plate (201). When the gap on the filter plate (201) is blocked, the filter plate (201) can rise under the action of pressure difference. When the slider (202) moves into the rotating groove (105), the slider (202) rotates, causing the filter plate (201) to rotate 180 degrees. The slide (102) has a guide groove (103) at one end. A drive assembly (3) is installed inside the guide groove (103). The drive assembly (3) includes a drive rod (301) that passes through the slider (202). The drive rod (301) is rotatably connected to the filter plate (201). A gear (302) is fixedly installed at the end of the drive rod (301) away from the filter plate (201). An elastic pawl (104) is rotatably installed on the inner wall of the guide groove (103). The gear (302) and the elastic pawl (104) mesh and drive each other. Multiple elastic pawls (104) are provided along the guide groove (103). The upper end of the slide (102) is provided with a rotating groove (105), the size of the rotating groove (105) is larger than the size of the slider (202), the slider (202) is provided with a cavity (204), the outer wall of the driving rod (301) corresponding to the cavity (204) is fitted with a torsion spring (303), one end of the torsion spring (303) is fixedly connected to the outer wall of the driving rod (301), and the other end of the torsion spring (303) is fixedly connected to the inner wall of the cavity (204); The filter tube (1) has two air extraction ports (106) on its upper outer wall. The air extraction ports (106) are connected to the air pump (101) through the pipe (107). A collection frame (108) is installed on the upper side inside the filter tube (1). The collection frame (108) corresponds to the position of the air extraction port (106) on the upper side. The filter plate (201) and the drive rod (301) are provided with multiple shrinkage grooves (205) at the rotatable connection. An elastic clamp (206) is slidably installed inside the shrinkage groove (205). The elastic clamp (206) is elastically connected to the inner wall of the shrinkage groove (205) through a compression spring (207). The drive rod (301) and the elastic clamp (206) are provided with slots (304) at corresponding positions. The end of the elastic clamp (206) near the slot (304) is in contact with the inner wall of the slot (304). Both sides of the slot (304) are arc-shaped. A filter frame (109) is fixedly installed inside the filter tube (1) at a position corresponding to the upper air extraction port (106). The size of the filter frame (109) on the side closer to the air extraction port (106) is larger than the size of the air extraction port (106). The lower air extraction port (106) is located below the collection frame (108). The collection frame (108) has a feed inlet (110) at one end, and a first sealing plate (111) is provided on one side of the feed inlet (110). The first sealing plate (111) is slidably connected to the collection frame (108) through a guide rod (112). A return spring (113) is sleeved on the outside of the guide rod (112). One end of the return spring (113) is fixedly connected to the guide rod (112), and the other end of the return spring (113) is fixedly connected to the collection frame (108). The filter tube (1) has a movable groove (114) inside its side wall. A second sealing plate (115) is slidably installed inside the movable groove (114). The second sealing plate (115) has two through holes (116) with the same size as the air extraction port (106). The lower end of the second sealing plate (115) is fixedly installed with a top rod (117). The lower end of the top rod (117) extends through the movable groove (114) into the sliding groove (102). When the slider (202) rises to a certain position, the upper end of the slider (202) can squeeze the lower end of the top rod (117).

2. The coke oven gas dust removal and demisting device based on multi-stage composite filtration according to claim 1, characterized in that: A sealing gasket (203) is fixedly installed on the outer wall of the filter plate (201), and the filter plate (201) is pressed against the inner wall of the filter tube (1) through the sealing gasket (203).

3. The coke oven gas dust and mist removal equipment based on multi-stage composite filtration according to claim 1, characterized in that: A connecting rod (305) is provided between two adjacent driving rods (301), and the connecting rod (305) is rotatably connected to the driving rod (301).

Images