An industrial waste gas filtering and purifying device

Abstract

The present application relates to the field of industrial waste gas filtration, and particularly relates to an industrial waste gas filtration and purification device. The existing technology needs to stop the machine to clean the filter material, which is troublesome and the industrial waste gas cannot be fully reacted. The technical scheme is that the industrial waste gas filtration and purification device comprises a box, an air inlet pipeline, a first fixing block and a first guide plate. An opening for discharging waste gas is arranged on the upper part of the box. An air inlet pipeline for conveying waste gas is communicated with the left side of the box. The first fixing block and the first guide plate are fixedly connected in the box, and the first fixing block is located on the left side of the first guide plate. The oil stains and particles are carried by the downward flowing lime slurry and transferred downward, and then mixed at the bottom of the box to form a group, which is convenient for subsequent cleaning.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of industrial waste gas filtration, and particularly relates to an industrial waste gas filtration and purification device. BACKGROUND

[0002] In the process of industrial waste gas filtration, the following problems exist.

[0003] 1. When filtering industrial waste gas, particles and combustible materials in the industrial waste gas need to be removed so as to facilitate subsequent treatment of the industrial waste gas. However, when the particles in the industrial waste gas are removed, the particles will adhere to the filter material, causing the filter material to lose the filtering effect, and the filter material needs to be cleaned or replaced after shutdown. However, since the cost of replacing the filter material is high, the filter material is usually cleaned and then reused, and the filter material is relatively troublesome to clean.

[0004] 2. When the industrial waste gas is treated by lime slurry, the lime slurry cannot fully react with the industrial waste gas due to the high flow speed of the industrial waste gas. Moreover, when the lime slurry is sprayed into the industrial waste gas, the lime slurry can only react with the industrial waste gas on the surface thereof, and the industrial waste gas that does not contact the lime slurry is not treated, which affects the treatment of the industrial waste gas and cannot meet the emission standard. SUMMARY

[0005] In order to overcome the problems that the filter material needs to be cleaned after shutdown and the industrial waste gas cannot be fully reacted, the present application provides an industrial waste gas filtration and purification device.

[0006] The technical scheme is as follows: an industrial waste gas filtering and purifying device, comprising a box, an air inlet pipeline, a first fixing block, a first guide plate, a second fixing block and a second guide plate; an opening for discharging waste gas is arranged on the upper portion of the box; the left side of the box is communicated with the air inlet pipeline for conveying waste gas; the first fixing block and the first guide plate are fixedly connected in the box, and the first fixing block is located on the left side of the first guide plate; the second fixing block and the second guide plate are fixedly connected in the box, the second guide plate is located above the first guide plate, and the second fixing block is located between the first guide plate and the second guide plate; the device further comprises a flame spraying pipe, a first filter plate, a second filter plate, a third filter plate, a fourth filter plate, a conveying pipeline and a flue gas treatment assembly; a flame spraying pipe for burning waste gas is rotatably connected to the upper surface of the second fixing block and the lower surface of the second guide plate; a motor is arranged on the front side of the box; the first filter plate is rotatably connected in the box, the rotating shaft of the first filter plate is fixedly connected with the output shaft of the motor on the front side of the box, and the first filter plate is located between the first fixing block and the second guide plate; the second filter plate is fixedly connected with the first fixing block and the second fixing block, and the second filter plate is in an inclined state from the lower left to the upper right; the third filter plate is movably connected to the second guide plate through a torsion spring, and the left end of the third filter plate is connected with all the flame spraying pipes through a metal rope; the fourth filter plate is fixedly connected with the second fixing block and the second guide plate, and the fourth filter plate is located on the right side of the flame spraying pipe; the conveying pipeline is communicated with the right side of the box; the flue gas treatment assembly for treating waste gas is installed in the box, and the conveying pipeline is connected with the flue gas treatment assembly.

[0007] As a further preferred scheme, the first filter plate is designed in an arc shape.

[0008] As a further preferred scheme, the flue gas treatment assembly comprises a first spraying pipeline, a third guide plate and a second spraying pipeline; the first spraying pipeline is fixedly connected to the right side of the box, and the spraying port of the first spraying pipeline faces the inside of the box; the third guide plate is fixedly connected to the right side in the box, and the third guide plate is located above the first spraying pipeline; the second spraying pipeline is fixedly connected to the third guide plate, and the spraying ports on the second spraying pipeline and the first spraying pipeline are distributed in a staggered manner.

[0009] As a further preferred scheme, a backflow portion is arranged on the third guide plate.

[0010] As a further preferred scheme, the device further comprises an arc-shaped plate; the arc-shaped plate is connected in the box, and the arc-shaped plate is in contact with the second guide plate.

[0011] As a further preferred scheme, the box and the arc-shaped plate are movably connected.

[0012] As a further preferred scheme, the device further comprises a third spraying pipeline; the third spraying pipeline is fixedly connected in the box, and the third spraying pipeline is located on the left side of the arc-shaped plate.

[0013] As a further preferred solution, the third injection pipeline is connected to the left side of the water curtain injection pipeline.

[0014] As a further preferred solution, the box body is further provided with a rotating dial, a fifth filter plate and a sixth filter plate; the left side of the box body is provided with a sealing plate; a transfer channel is formed between the first guide plate and the second fixed block; the box body is rotatably connected with the rotating dial, and the rotating dial is in contact with the first guide plate; the first fixed block and the first guide plate are jointly fixedly connected with the fifth filter plate; the box body is fixedly connected with the sixth filter plate.

[0015] As a further preferred solution, the second guide plate is provided with an inclined portion.

[0016] The first filter plate, the second filter plate and the fourth filter plate are used for filtering the industrial waste gas multiple times, so that all particles in the industrial waste gas can be intercepted.

[0017] The first filter plate pushes the third filter plate, the torsion spring at the connection between the box body and the third filter plate is stressed, the third filter plate is pushed upward, the fire lance is turned left by the thin rope during the upward turning of the third filter plate, the flame sprayed by the fire lance is directed to the first filter plate, the second filter plate and the third filter plate for flushing, the flames sprayed by the two fire lances form a larger flame, the oil stains and particles intercepted on the first filter plate, the second filter plate and the third filter plate are flushed down by high temperature, and are transferred to the lower side of the third filter plate; after the exchange is completed, the industrial waste gas is guided to the second filter plate for filtering treatment by the arc-shaped guide, and the normal filtering of the industrial waste gas is avoided.

[0018] The first injection pipeline and the second injection pipeline spray the lime slurry alternately, the industrial waste gas moves to the spraying area of the first injection pipeline, the industrial waste gas reacts with the lime slurry sprayed by the first injection pipeline to form sulfide and fall on the first guide plate, the industrial waste gas is divided into multiple parts by the lime slurry sprayed by the first injection pipeline, the multiple parts of the industrial waste gas are transferred upward, the multiple parts of the industrial waste gas move to the spraying area of the second injection pipeline, the industrial waste gas can better react with the lime slurry due to the division of the industrial waste gas into multiple parts, and the industrial waste gas cannot fully react with the lime slurry, so that the treatment of the industrial waste gas is affected.

[0019] The industrial waste gas passing through the spraying area of the second injection pipeline is guided to the spraying area of the second injection pipeline again by the reflux, so that the industrial waste gas can effectively react.

[0020] The present application sprays the lime slurry on the arc-shaped plate through the first and second spray pipes, so that the lime slurry is splashed on the arc-shaped plate and better diffused in the working area of the flue gas treatment assembly, the arc-shaped plate is randomly rotated when the lime slurry washes the arc-shaped plate, the diffusion effect of the lime slurry is further improved, and the industrial waste gas reacts with the lime slurry more fully.

[0021] The present application carries the oil stains and particles downward to the bottom of the box through the downward flowing lime slurry, mixes in the bottom of the box, forms a group, and is convenient for subsequent cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the overall structure schematic view of the industrial waste gas filtration and purification device disclosed by the present application.

[0023] Figure 2 It is the internal structure schematic view of the box of the industrial waste gas filtration and purification device disclosed by the present application.

[0024] Figure 3 It is the structure schematic view of the rotating push plate, the fifth filter plate and the sixth filter plate of the industrial waste gas filtration and purification device disclosed by the present application.

[0025] Figure 4 It is the flue gas treatment assembly structure schematic view of the industrial waste gas filtration and purification device disclosed by the present application.

[0026] Wherein: 1-box, 2-air inlet pipeline, 3-first fixed block, 4-first guide plate, 5-second fixed block, 6-second guide plate, 7-flame pipe, 8-first filter plate, 9-second filter plate, 10-third filter plate, 11-fourth filter plate, 12-conveying pipeline, 101-first spray pipe, 102-third guide plate, 103-second spray pipe, 104-arc-shaped plate, 105-third spray pipe, 201-rotating push plate, 202-fifth filter plate, 203-sixth filter plate, 1a-sealing plate, 5a-transfer channel, 6a-inclined position, 102a-backflow position, 105a-water curtain spray pipe. DETAILED DESCRIPTION

[0027] The technical solutions will be further described below in combination with specific embodiments, and it should be noted that the words indicating directions such as up, down, left and right in the text are only for the positions of the shown structures in the corresponding drawings. The serial numbers of the components in the text, for example, first, second and the like, are only used to distinguish the described objects and do not have any sequence or technical meaning. Unless otherwise specified, the connection and coupling in the present application include direct and indirect connection (coupling).

[0028] Example 1

[0029] An industrial waste gas filtration and purification device, such as Figures 1-3 As shown, it includes a housing 1, an air intake pipe 2, a first fixing block 3, a first guide plate 4, a second fixing block 5, and a second guide plate 6; the housing 1 has an opening at the top; the air intake pipe 2 is connected to the left side of the housing 1; the first fixing block 3 and the first guide plate 4 are fixedly connected inside the housing 1, and the first fixing block 3 is located to the left of the first guide plate 4; the second fixing block 5 and the second guide plate 6 are fixedly connected inside the housing 1, the second guide plate 6 is located above the first guide plate 4, and the second fixing block 5 is located between the first guide plate 4 and the second guide plate 6;

[0030] It also includes a flame-emitting pipe 7, a first filter plate 8, a second filter plate 9, a third filter plate 10, a fourth filter plate 11, a conveying pipe 12, and a smoke treatment assembly; a flame-emitting pipe 7 is rotatably connected to the upper surface of the second fixing block 5 and the lower surface of the second guide plate 6; a motor is provided on the front side of the housing 1; the first filter plate 8 is rotatably connected inside the housing 1, and the rotating shaft of the first filter plate 8 is fixedly connected to the output shaft of the motor on the front side of the housing 1, and the first filter plate 8 is located between the first fixing block 3 and the second guide plate 6; the first fixing block 3 and the second fixing block 5 are jointly fixedly connected to the second filter plate 9, and the second filter plate 9 is in an inclined state with the lower left and upper right; the second guide plate 6 is hinged to the third filter plate 10 by a torsion spring, and the left end of the third filter plate 10 is connected to all the flame-emitting pipes 7 by a metal rope; the second fixing block 5 and the second guide plate 6 are jointly fixedly connected to the fourth filter plate 11, and the fourth filter plate 11 is located to the right of the flame-emitting pipe 7; the right side of the housing 1 is connected to the conveying pipe 12; a smoke treatment assembly is installed inside the housing 1, and the conveying pipe 12 is connected to the smoke treatment assembly.

[0031] The first filter plate 8 has an arc-shaped design. This arc-shaped design allows the first filter plate 8 to trap more particles, achieving a better filtration effect.

[0032] In this invention, the air intake pipe 2 is equipped with a backfire prevention device to prevent backfire from occurring in industrial waste gas.

[0033] Before filtering the industrial waste gas, the inlet pipeline 2 is connected with the external waste gas conveyor, the flame spraying pipe 7 is connected with the external flame sprayer, the conveying pipeline 12 is connected with the liquid transfer device, and the smoke treatment assembly is connected with the external lime slurry conveyor. The external waste gas conveyor is started to convey the industrial waste gas to be treated into the box body 1 through the inlet pipeline 2, and the filtering operation of the industrial waste gas is started. The flame sprayer is started, and the flame spraying pipe 7 on the second fixed block 5 and the second guide plate 6 starts to spray flame. The industrial waste gas impacts the first filter plate 8 after being transferred into the box body 1. After the industrial waste gas impacts the first filter plate 8, the first filter plate 8 retains the particles in the industrial waste gas. Through the arc-shaped design of the first filter plate 8, the first filter plate 8 can retain more particles to achieve better filtering effect. The industrial waste gas generally has oil stains. At this time, the particles retained by the first filter plate 8 are adhered to the first filter plate 8 by the oil stains. Considering that the filtering efficiency of the first filter plate 8 alone cannot filter all the conveyed industrial waste gas, part of the industrial waste gas will be transferred upward or downward under the guidance of the arc-shaped design of the first filter plate 8. The industrial waste gas transferred upward continues to transfer to the right after contacting the second guide plate 6. The industrial waste gas transferred downward continues to transfer to the right after contacting the first fixed block 3. Then, the filtering of the part of the industrial waste gas is completed by the third filter plate 10. The industrial waste gas continues to transfer to the right. When the industrial waste gas is transferred to the area where the flame is sprayed by the flame spraying pipe 7, the combustible in the industrial waste gas is burned by the flame sprayed by the flame spraying pipe 7 to reduce the combustible in the industrial waste gas, which is convenient for subsequent treatment. Considering that the first filter plate 8 and the second filter plate 9 cannot retain all the particles in the industrial waste gas, after the industrial waste gas moves out of the area where the flame is sprayed by the flame spraying pipe 7, the industrial waste gas continues to move to the right. The fourth filter plate 11 filters the industrial waste gas again to ensure that all the particles in the industrial waste gas are retained.

[0034] After being used for a certain period of time, the left side of the first filter plate 8 is occupied by oil stains and particles and loses the ability to intercept, affecting the filtration of industrial waste gas. At this time, the motor at the front side of the box 1 drives the first filter plate 8 to rotate counterclockwise by 180 degrees from front to back, so that the right side of the first filter plate 8, which still has the ability to intercept, is exchanged with the left side. In the process of exchange, the first filter plate 8 pushes the third filter plate 10, and the torsion spring at the connection between the box 1 and the third filter plate 10 begins to be stressed, pushing the third filter plate 10 upward. In the process of the third filter plate 10 turning upward, the fine rope pulls the fire lance 7 to turn left, so that the flame sprayed by the fire lance 7 is directed toward the first filter plate 8, the second filter plate 9 and the third filter plate 10 for flushing. The flames sprayed by the two fire lances 7 form a larger flame, which removes the oil stains and particles intercepted on the first filter plate 8, the second filter plate 9 and the third filter plate 10 by high temperature, and shifts downward to the third filter plate 10. After the exchange is completed, the arc-shaped guide guides the industrial waste gas to the second filter plate 9 for filtration treatment, avoiding affecting the normal filtration of the industrial waste gas. After the first filter plate 8, the second filter plate 9 and the third filter plate 10 are cleaned, the motor at the front side of the box 1 drives the first filter plate 8 to reset, and the corresponding parts change accordingly. The oil stains and particles solidified on the fourth filter plate 11 can be removed when the two fire lances 7 are opposite, and then fall on the first guide plate 4, avoiding affecting the filtration of the industrial waste gas.

[0035] After that, the industrial waste gas passes through the fourth filter plate 11 and shifts to the working area of the flue gas treatment assembly, and the flue gas treatment assembly performs subsequent treatment on the industrial waste gas.

[0036] Embodiment 2

[0037] Based on embodiment 1, as shown in Figures 2-4 the flue gas treatment assembly comprises a first spraying pipe 101, a third guide plate 102 and a second spraying pipe 103. The first spraying pipe 101 is fixedly connected to the upper right side of the box 1, and the spraying port of the first spraying pipe 101 faces the inside of the box 1. The third guide plate 102 is fixedly connected to the upper right side in the box 1, and the third guide plate 102 is located above the first spraying pipe 101. The second spraying pipe 103 is fixedly connected to the third guide plate 102, and the spraying ports on the second spraying pipe 103 are distributed in a staggered manner with the spraying ports on the first spraying pipe 101.

[0038] The third guide plate 102 is provided with a backflow portion 102a. The backflow portion 102a guides the industrial waste gas to pass through the spraying area of the second spraying pipe 103 again to react, so that the industrial waste gas can be effectively reacted.

[0039] Further include the arc-shaped plate 104; the box body 1 is connected with the arc-shaped plate 104, and the arc-shaped plate 104 is in contact with the second guide plate 6.

[0040] The box body 1 is movably connected with the arc-shaped plate 104, through the movably connected with the arc-shaped plate 104, when the lime slurry is washed to the arc-shaped plate 104, the arc-shaped plate 104 is freely rotated, the diffusion effect of the lime slurry is further improved, and the reaction of the industrial waste gas and the lime slurry is more sufficient.

[0041] Further include the third spray pipeline 105; the third spray pipeline 105 is fixedly connected to the top surface in the box body 1, and the third spray pipeline 105 is located on the left side of the arc-shaped plate 104.

[0042] The left side of the third spray pipeline 105 is communicated with the water curtain spray pipe 105a, the lime slurry water curtain is formed on the left side of the spray area of the third spray pipeline 105 through the water curtain spray pipe 105a, and it is ensured that the unreacted industrial waste gas is not transferred outward.

[0043] The spray ports of the first spray pipeline 101, the second spray pipeline 103 and the third spray pipeline 105 in the application are atomizing nozzles.

[0044] When the industrial waste gas moves to the working area of the flue gas treatment assembly, the external lime slurry conveyor is started, the lime slurry is conveyed to the first spray pipeline 101, the second spray pipeline 103 and the third spray pipeline 105 and sprayed out, and the treatment of the industrial waste gas is started, at this time, the lime slurry sprayed out by the first spray pipeline 101 and the second spray pipeline 103 is staggered, after the industrial waste gas moves to the spray area of the first spray pipeline 101, the industrial waste gas reacts with the lime slurry sprayed by the first spray pipeline 101, forms sulfide and falls downward to the first guide plate 4, and at the same time that the industrial waste gas reacts with the lime slurry, the industrial waste gas is divided into multiple parts by the lime slurry sprayed out by the first spray pipeline 101, the multiple parts of the industrial waste gas are transferred upward, it should be noted that when a certain amount of lime slurry is accumulated in the bottom of the box body 1, the lime slurry blocks the conveying pipeline 12, and the industrial waste gas cannot be transferred from the conveying pipeline 12, when the multiple parts of the industrial waste gas move to the spray area of the second spray pipeline 103, the industrial waste gas can better react with the lime slurry due to the fact that the industrial waste gas is divided into multiple parts, and the industrial waste gas cannot be fully reacted with the lime slurry, so that the treatment of the industrial waste gas is affected.

[0045] Considering that the industrial waste gas flows fast, the industrial waste gas may be transferred out of the reaction area before the reaction is completed, which affects the treatment of the industrial waste gas. After the industrial waste gas passes through the injection area of the second injection pipe 103, the industrial waste gas is transferred to the backflow area 102a. The industrial waste gas passing through the injection area of the second injection pipe 103 is guided by the backflow area 102a to return to the injection area of the second injection pipe 103 to react again, so that the industrial waste gas can effectively react. The airflow formed by the lime slurry sprayed by the first injection pipe 101 and the second injection pipe 103 guides the industrial waste gas to the left, so that the industrial waste gas that has completed the reaction is transferred to the left. At the same time, the lime slurry sprayed by the first injection pipe 101 and the second injection pipe 103 is sprayed on the arc-shaped plate 104, and the lime slurry forms splashing on the arc-shaped plate 104, so that the lime slurry can be better diffused in the working area of the flue gas treatment assembly. The box 1 and the arc-shaped plate 104 are movably connected. When the lime slurry washes the arc-shaped plate 104, the arc-shaped plate 104 rotates freely, so that the diffusion effect of the lime slurry is further improved, and the reaction of the industrial waste gas with the lime slurry is more sufficient. In order to ensure that the industrial waste gas that has reacted with the lime slurry can be directly discharged, the lime slurry sprayed by the third injection pipe 105 is contacted with the industrial waste gas again to determine whether the industrial waste gas has reacted sufficiently, so as to avoid the unreacted industrial waste gas from being transferred outward. At the same time that the lime slurry is sprayed by the third injection pipe 105, the lime slurry water curtain is formed on the left side of the injection area of the third injection pipe 105 by the water curtain injection pipe 105a, so as to ensure that the unreacted industrial waste gas cannot be transferred outward.

[0046] Embodiment 3

[0047] Based on the embodiment 2, as shown in Figures 2-3 the rotating dial plate 201, the fifth filter plate 202 and the sixth filter plate 203 are further included. The box 1 is provided with a sealing plate 1a on the left side. The transfer channel 5a is formed between the first guide plate 4 and the second fixed block 5. The rotating dial plate 201 is movably connected in the box 1 and in contact with the first guide plate 4. The fifth filter plate 202 is fixedly connected to the first fixed block 3 and the first guide plate 4. The sixth filter plate 203 is fixedly connected to the left side of the box 1.

[0048] The second guide plate 6 is provided with an inclined portion 6a. The lime slurry of the lime slurry water curtain sprayed by the water curtain injection pipe 105a is guided by the inclined portion 6a to be transferred to the downward falling area between the second guide plate 6 and the arc-shaped plate 104, so as to strengthen the transfer of the accumulated sulfides.

[0049] When the flue gas treatment assembly is used to treat industrial waste gas, sulfides formed are accumulated on the first guide plate 4, affecting the transfer of the industrial waste gas. At this time, the first spray pipe 101 and the second spray pipe 103 spray lime slurry on the arc-shaped plate 104, forming a lime slurry flow that falls downward and carries the accumulated sulfides into the transfer channel 5a. Considering that the lime slurry flow formed on the arc-shaped plate 104 cannot well transfer the accumulated sulfides into the transfer channel 5a, at this time, the lime slurry of the lime slurry water curtain sprayed by the water curtain spray pipe 105a at the inclined portion 6a is guided to fall downward between the second guide plate 6 and the arc-shaped plate 104, strengthening the transfer of the accumulated sulfides and avoiding affecting the transfer of the industrial waste gas. While the lime slurry falls downward, it contacts and reacts with the unreacted industrial waste gas, reducing the concentration of the industrial waste gas, facilitating its subsequent reaction with the lime slurry again. After the sulfides are transferred into the transfer channel 5a, they continue to move to the left. At this time, the water flow formed by the lime slurry pushes the rotating paddle 201, causing the rotating paddle 201 to rotate counterclockwise when viewed from front to back. When the sulfides contact the rotating paddle 201, the rotating paddle 201 pushes the lime slurry and the sulfides to the left, causing the lime slurry and the sulfides to better distribute on the fifth filter plate 202. At this time, the oil stains and particles on the first filter plate 8, the second filter plate 9, and the third filter plate 10 are not cleaned, and the fifth filter plate 202 is attached with lime slurry. When the oil stains and particles on the first filter plate 8, the second filter plate 9, and the third filter plate 10 are cleaned, the oil stains and particles fall downward onto the fifth filter plate 202, are carried downward by the downward flowing lime slurry, and are transferred downward to the bottom of the box 1 for mixing, forming a lump at the bottom of the box 1, facilitating subsequent cleaning. At the same time, the lime slurry at the bottom of the box 1 is extracted through the delivery pipe 12 and is delivered by an external lime slurry delivery machine for reuse, reducing the loss of lime slurry. Considering that the lumped objects at the bottom of the box 1 will affect the reuse of the lime slurry at the bottom of the box 1, at this time, the sixth filter plate 203 is used to intercept the lumped objects, avoiding affecting the reuse of the lime slurry at the bottom of the box 1.

[0050] When the filtering of the industrial waste gas is completed, the sealing plate 1a is manually opened to clean the lumped objects at the bottom of the box 1.

[0051] The technical principles of the embodiments of the present application are described above in combination with specific embodiments. These descriptions are only to explain the principles of the embodiments of the present application, and cannot be interpreted in any way as a limitation on the protection scope of the embodiments of the present application. Based on the explanations here, those skilled in the art can think of other specific embodiments of the embodiments of the present application without creative labor, and these embodiments will fall within the protection scope of the embodiments of the present application.

Claims

1. An industrial waste gas filtration and purification device, comprising a housing, an inlet pipe, a first fixing block, a first guide plate, a second fixing block, and a second guide plate; the upper part of the housing is provided with an opening for discharging waste gas; an inlet pipe for conveying waste gas is connected to the left side of the housing; a first fixing block and a first guide plate are fixedly connected inside the housing, with the first fixing block located to the left of the first guide plate; a second fixing block and a second guide plate are fixedly connected inside the housing, with the second guide plate located above the first guide plate, and the second fixing block located between the first guide plate and the second guide plate; characterized in that: It also includes a flame-emitting pipe, a first filter plate, a second filter plate, a third filter plate, a fourth filter plate, a conveying pipe, and a flue gas treatment assembly; a flame-emitting pipe for incinerating waste gas is rotatably connected to the upper surface of the second fixed block and the lower surface of the second guide plate; a motor is located on the front side of the box; the first filter plate is rotatably connected inside the box, and the shaft of the first filter plate is fixedly connected to the output shaft of the motor on the front side of the box, and the first filter plate is located between the first fixed block and the second guide plate; the second filter plate is fixedly connected to the first fixed block and the second fixed block together, and the second filter plate is tilted to the lower left and upper right; the third filter plate is movably connected to the second guide plate through a torsion spring, and the left end of the third filter plate is connected to all the flame-emitting pipes through a metal rope; the fourth filter plate is fixedly connected to the second fixed block and the second guide plate together, and the fourth filter plate is located to the right of the flame-emitting pipe; a conveying pipe is connected to the right side of the box; a flue gas treatment assembly for treating waste gas is installed inside the box, and the conveying pipe is connected to the flue gas treatment assembly; The flue gas treatment assembly includes a first injection pipe, a third guide plate, and a second injection pipe; the first injection pipe is fixedly connected to the right side of the housing, and the injection port of the first injection pipe faces into the housing; the third guide plate is fixedly connected to the right side of the housing, and the third guide plate is located above the first injection pipe; the second injection pipe is fixedly connected to the third guide plate, and the injection ports on the second injection pipe are staggered from the injection ports on the first injection pipe. The third guide plate is equipped with a return flow point; It also includes an arc-shaped plate; the arc-shaped plate is connected inside the box, and the arc-shaped plate contacts the second guide plate; After cleaning the first, second, and third filter plates, the motor on the front of the housing drives the first filter plate to reset, and the corresponding parts change accordingly. The oil and particles solidified on the fourth filter plate can be washed off when the two flame nozzles are facing each other.

2. The industrial waste gas filtration and purification device according to claim 1, characterized in that: The first filter plate has an arc-shaped design.

3. The industrial waste gas filtration and purification device according to claim 1, characterized in that: The box body and the curved plate are connected movably.

4. An industrial waste gas filtration and purification device according to any one of claims 1 or 3, characterized in that: It also includes a third injection pipe; the third injection pipe is fixed inside the box and is located to the left of the arc plate.

5. The industrial waste gas filtration and purification device according to claim 4, characterized in that: The third jet pipe is connected to the water curtain jet pipe on the left side.

6. The industrial waste gas filtration and purification device according to claim 1, characterized in that: It also includes a rotating dial, a fifth filter plate, and a sixth filter plate; a sealing plate is provided on the left side of the box; a transfer channel is formed between the first guide plate and the second fixing block; a rotating dial is rotatably connected inside the box, and the rotating dial contacts the first guide plate; the fifth filter plate is fixedly connected to the first fixing block and the first guide plate; and the sixth filter plate is fixedly connected inside the box.

7. The industrial waste gas filtration and purification device according to claim 6, characterized in that: The second guide plate has an inclined section.

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