Waste gas treatment device and method for artificial stone production line

Abstract

The present invention discloses an exhaust gas treatment device and method for an artificial stone production line. The device includes a connecting pipe, and a sealing cover is arranged at the top of the connecting pipe; a dust removal assembly, which includes a dust removal fiber mesh, a hollow mounting frame and a driving member. A dust storage tray with through holes is rotatably inserted at the bottom of the hollow mounting frame, and partition plates that divide the dust storage tray into a plurality of dust storage spaces are circumferentially and equidistantly arranged on the inner circumference of the dust storage tray; the exhaust gas passes through the through holes of the dust storage tray and is dust-removed and filtered by the dust removal fiber mesh and then enters the reaction tank, and the driving member drives the dust storage tray to rotate so that the partition plates clean the surface of the dust removal fiber mesh. The dust removal assembly is used to perform dust removal treatment on the exhaust gas before combustion treatment, so as to avoid affecting the combustion of the exhaust gas. At the same time, the flow of the exhaust gas is used to provide power for the rotation of the dust storage tray, and then the dust removal fiber mesh is cleaned to avoid the blockage of the dust removal fiber mesh from affecting the intake work of the exhaust gas.

Description

Technical Field

[0001] The present invention belongs to the technical field of waste gas treatment, and particularly relates to a waste gas treatment device for an artificial stone production line and a working method of the waste gas treatment device for the artificial stone production line. Background Art

[0002] The main raw materials of artificial stone, natural waste stone materials / stone powder, often come from stone mining and mine mining, which avoids the occupation and damage of land by stone resources and is very in line with the environmental protection concept. However, the manufacturing process of artificial stone is not completely pollution-free. Since auxiliary materials such as adhesives and curing agents will release organic waste gas (VOCs) during the production process, the processes that generate organic waste gas are mainly stirring, mixing, cloth laying, curing and other stages. Most of the generated organic waste gas volatilizes from raw and auxiliary materials such as adhesives (unsaturated polyester resin), curing agents (methyl ethyl ketone peroxide / cyclohexanone peroxide, etc.), and additives (accelerators and coupling agents) during production. Therefore, the waste gas needs to be uniformly collected into an organic waste gas treatment device for treatment.

[0003] When catalytic combustion treatment is carried out on the waste gas, because there is a small amount of fly ash in the waste gas, it will affect the combustion effect of the waste gas. Therefore, it is necessary to treat the fly ash inside the waste gas before combustion. Summary of the Invention

[0004] In view of the problem in the prior art that it is necessary to treat the fly ash inside the waste gas before combustion to reduce the influence on the combustion effect of the waste gas, the present invention proposes the following technical solutions:

[0005] A waste gas treatment device for an artificial stone production line, comprising:

[0006] A connecting pipe, the connecting pipe connects the intake pipe and the reaction tank inlet, and a sealing cover is arranged at the top of the connecting pipe;

[0007] A dust removal assembly, the dust removal assembly is located in the connecting pipe, the dust removal assembly includes a dust removal fiber mesh, a hollow mounting frame and a driving member, the top of the hollow mounting frame is fixedly connected with the sealing cover, the bottom of the hollow mounting frame is rotationally inserted with a dust storage tray with a through hole, and the inner circumference of the dust storage tray is equidistantly provided with partition plates that divide it into a plurality of dust storage spaces, and the driving member drives the dust storage tray to rotate at a low speed or a high speed;

[0008] The waste gas passes through the through hole of the dust storage tray and is dust-removed and filtered by the dust removal fiber mesh and then enters the reaction tank. The driving member drives the dust storage tray to rotate so that the partition plates clean the surface of the dust fiber mesh, and the cleaned dust converges towards the hollow mounting frame under the action of centrifugal force.

[0009] Preferably, as the above technical solution, the driving member includes a rotating shaft and a fan blade member fixedly connected to the rotating shaft. The fan blade member is driven by the exhaust gas to drive the rotating shaft to rotate. One end of the rotating shaft penetrates through the dust removal fiber mesh and extends into the sealing cover.

[0010] Preferably, as the above technical solution, the driving member further includes an adjusting portion. The adjusting portion includes a lifting block and a limiting block coaxially connected to the rotating shaft. The top of the lifting block is rotationally inserted with an adjusting screw rod threadedly connected to the sealing cover. A plurality of elastic pieces are arranged at the bottom of the lifting block, and a return spring is arranged between the elastic piece and the lifting block. After the lifting block drives the elastic piece to move downward, the elastic piece contacts the limiting block to frictionally decelerate or statically frictionally fix it. The rotating shaft can drive the dust storage tray to perform three motions: low-speed rotation, high-speed rotation, and static immobility.

[0011] Preferably, as the above technical solution, the dust storage tray is provided with isolation portions at intervals at the position of the partition plate. The isolation portion includes a gravity block. One end of the gravity block is fixedly connected to the partition plate through an elastic rope. Inner partition plates and outer partition plates are arranged on both sides of the other end of the gravity block. Torsion springs are arranged between the middle parts of the inner partition plates and the outer partition plates and the dust storage tray.

[0012] Preferably, as the above technical solution, an installation piece is fixedly connected to the top of the dust removal fiber mesh. An installation block that is rotationally sealed with the dust storage tray is arranged at the bottom of the dust removal fiber mesh. The installation piece is fixedly connected to the installation frame and the installation block through screws.

[0013] Preferably, as the above technical solution, a rubber sheet is arranged on the outer side of the hollow installation frame. The rubber sheet seals the surface of the hollow installation frame and the inner wall of the connecting pipe.

[0014] Preferably, as the above technical solution, a connecting rod is arranged in the middle of the rotating shaft. The middle part of the rotating shaft is arranged in a disconnected state. The connecting rod is fixedly connected to both ends of the rotating shaft through bolts.

[0015] Preferably, as the above technical solution, an anti-slip layer is arranged on the top of the sealing cover. The surface of the anti-slip layer is arranged in a concave-convex shape.

[0016] The working method of the waste gas treatment device for the artificial stone production line includes the following steps.

[0017] S1. Gas dust removal;

[0018] The collected gas is transported to the reaction tank through the intake pipe and the connecting pipe, and is dust-removed by the dust removal fiber mesh when passing through the connecting pipe.

[0019] S2. Cleaning of the dust removal fiber mesh;

[0020] The driving part uses the flow of gas to drive the dust storage tray to rotate, and the partition plate moves at the bottom of the dust removal fiber mesh to clean the dust removal fiber mesh;

[0021] S3. Fly ash collection;

[0022] After the dust cleared from the dust removal fiber mesh falls on the surface of the dust storage tray, the dust converges towards the inside of the hollow mounting frame under the action of centrifugal force for subsequent processing.

[0023] The beneficial effects of the present invention are as follows:

[0024] 1. Before combustion treatment, the dust removal component is used to remove dust from the waste gas, thereby avoiding affecting the combustion of the waste gas. At the same time, the flow of the waste gas is used to provide power for the rotation of the dust storage tray, and then the dust removal fiber mesh is cleaned, avoiding the blockage of the dust removal fiber mesh from affecting the intake work of the waste gas and extending the service life of the dust removal fiber mesh;

[0025] 2. After using the incoming waste gas flow to provide power for the dust storage tray, the sliding friction force on the limit block is adjusted through the adjustment part so that the dust storage tray has three motion states: low-speed rotation, high-speed rotation, and stationary;

[0026] 3. Three different centrifugal forces are provided for the gravity block by the three motion states of the dust storage tray. The gravity block can sequentially push the inner partition plate and the outer partition plate to deflect, and the dust collected in the dust storage tray can be gradually moved towards the hollow mounting frame direction, cleaning the dust in the dust storage tray while ensuring the sealing of the side wall of the dust storage tray, thereby avoiding the escape of harmful waste gas. Description of the Drawings

[0027] Figure 1 Shows the overall structural schematic diagram of the embodiment;

[0028] Figure 2 Shows the front view cross-sectional view of the embodiment;

[0029] Figure 3 Shows the internal device diagram of the connecting pipe in the embodiment;

[0030] Figure 4 Shows the installation position diagram of the dust storage tray in the embodiment;

[0031] Figure 5 Shows the installation position diagram of the isolation part in the embodiment;

[0032] Figure 6 Shows the front view of the adjustment part in the embodiment.

[0033] In the figure: 10, connecting pipe; 20, sealing cover; 30, dust removal assembly; 31, dust removal fiber mesh; 32, hollow mounting frame; 33, dust storage tray; 331, partition board; 332, through hole; 34, driving member; 341, rotating shaft; 342, connecting rod; 343, fan blade member; 35, adjusting portion; 351, limiting block; 352, adjusting screw rod; 353, elastic sheet; 354, return spring; 355, lifting block; 36, isolation portion; 361, gravity block; 362, elastic cord; 363, inner partition board; 364, outer partition board; 37, mounting sheet; 38, mounting block; 39, rubber sheet. Detailed implementation mode

[0034] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments and the drawings of the specification.

[0035] Embodiment

[0036] Figures 1-4 Among them, the waste gas treatment device for an artificial stone production line includes:

[0037] Connecting pipe 10, the connecting pipe 10 connects the intake pipe and the inlet of the reaction tank, and a sealing cover 20 is arranged at the top of the connecting pipe 10, and the sealing cover 20 is threadedly inserted into the top of the connecting pipe 10;

[0038] Dust removal assembly 30, the dust removal assembly 30 is located in the connecting pipe 10, the dust removal assembly 30 includes a dust removal fiber mesh 31, a hollow mounting frame 32 and a driving member 34, a dust storage tray 33 with a through hole 332 is rotatably inserted at the bottom of the hollow mounting frame 32, and partition boards 331 that divide the dust storage tray 33 into a plurality of dust storage spaces are circumferentially and equidistantly arranged inside the dust storage tray 33, and the driving member 34 drives the dust storage tray 33 to rotate at a low speed or a high speed;

[0039] The waste gas passes through the through hole 332 of the dust storage tray 33 and is dust-removed and filtered by the dust removal fiber mesh 31 and then enters the reaction tank, and the driving member 34 drives the dust storage tray 33 to rotate so that the partition board cleans the surface of the dust removal fiber mesh 31, and the cleaned dust converges towards the hollow mounting frame 32 under the action of centrifugal force.

[0040] The exhaust fan in the air collecting hood uniformly collects the waste gas in the working area and transports it to the reaction tank through the intake pipe and the connecting pipe 10. When the waste gas passes through the connecting pipe 10, the waste gas passes through the position of the through hole 332 of the dust storage tray 33 and passes through the dust removal fiber mesh 31. The flying dust in the waste gas is blocked by the dust removal fiber mesh 31 to perform dust removal. After a period of time, the driving member 34 drives the dust storage tray 33 to rotate so that the partition board 331 moves under the dust removal fiber mesh 31, thereby cleaning the dust removal fiber mesh 31, and the cleaned dust converges towards the inside of the hollow mounting frame 32 under the action of centrifugal force.

[0041] Before the combustion treatment, the dust removal component 30 is used to remove dust from the waste gas, so as to avoid affecting the combustion of the waste gas. At the same time, the flow of the waste gas is used to provide power for the rotation of the dust storage tray 33, thereby cleaning the dust removal fiber mesh 31, avoiding the blockage of the dust removal fiber mesh 31 from affecting the intake of the waste gas, and extending the service life of the dust removal fiber mesh 31.

[0042] The working method of the waste gas treatment device for the artificial stone production line includes the following steps.

[0043] S1. Gas dust removal;

[0044] The collected gas is transported to the reaction tank through the intake pipe and the connecting pipe 10, and is dust-removed by the dust removal fiber mesh 31 when passing through the connecting pipe 10.

[0045] S2. Cleaning of the dust removal fiber mesh 31;

[0046] The driving part 34 drives the dust storage tray 33 to rotate by using the flow of the gas, and the partition plate 331 moves at the bottom of the dust removal fiber mesh 31 to clean the dust removal fiber mesh 31.

[0047] S3. Fly ash collection;

[0048] After the dust cleared from the dust removal fiber mesh 31 falls on the surface of the dust storage tray 33, the dust converges towards the inside of the hollow mounting frame 32 under the action of centrifugal force for subsequent treatment.

[0049] Figures 2-6 Among them, the driving part 34 includes a rotating shaft 341 and a fan blade part 343 fixedly connected to the rotating shaft 341. The fan blade part 343 is driven by the waste gas to drive the rotating shaft 341 to rotate. One end of the rotating shaft 341 penetrates through the dust removal fiber mesh 31 and extends into the sealing cover 20.

[0050] The driving part 34 further includes an adjustment part 35. The adjustment part 35 includes a lifting block 355 and a limiting block 351 coaxially connected to the rotating shaft 341. The top of the lifting block 355 is rotationally inserted with an adjustment screw rod 352 threadedly connected to the sealing cover 20. A plurality of elastic pieces 353 are arranged at the bottom of the lifting block 355. A return spring 354 is arranged between the elastic pieces 353 and the lifting block 355. After the lifting block 355 drives the elastic pieces 353 to move downward, the elastic pieces 353 contact the limiting block 351 to frictionally decelerate or statically frictionally fix it. The rotating shaft 341 can drive the dust storage tray 33 to perform three motions: low-speed rotation, high-speed rotation, and stationary.

[0051] When the exhaust gas flow in the connecting pipe 10 passes through the position of the fan blade member 343, it provides a certain driving force for the fan blade member 343, causing the rotating shaft 341 to have a tendency to rotate. When it is necessary to clean the dust removal fiber mesh 31, the rotating adjustment screw rod 352 drives the lifting block 355 to move upward, and the elastic piece 353 moves upward and resets accordingly. The limiting block 351 loses the blocking and fixing of the elastic piece 353, and the fan blade member 343 can be driven by the exhaust gas flow to drive the dust storage tray 33 to rotate, thereby cleaning the dust removal fiber mesh 31. When the bottom of the elastic piece 353 does not leave the position of the limiting block 351, the rotation of the limiting block 351 will contact the bottom of the elastic piece 353, and the elastic piece 353 will be squeezed and deformed, compressing the return spring 354. A sliding friction is generated between the elastic piece 353 and the limiting block 351 to reduce the rotation speed of the limiting block 351, and the rotating shaft 341 can drive the dust storage tray 33 to rotate at a low speed. When the bottom of the elastic piece 353 completely leaves the position of the limiting block 351, no sliding friction is generated between the elastic piece 353 and the limiting block 351, and the rotating shaft 341 drives the dust storage tray 33 to rotate at a high speed.

[0052] After using the incoming exhaust gas flow to provide power for the dust storage tray 33, the sliding friction force on the limiting block 351 is adjusted by the adjustment part 35 so that the dust storage tray 33 has three motion states: low-speed rotation, high-speed rotation, and stationary.

[0053] Figure 2 and Figure 5 In [description of relevant figure or context], the dust storage tray 33 is provided with isolation parts 36 at intervals at the position of the partition plate 331. The isolation parts 36 include gravity blocks 361. One end of the gravity block 361 is fixedly connected to the partition plate 331 through an elastic rope 362. On both sides of the other end of the gravity block 361, an inner partition plate 363 and an outer partition plate 364 are provided. Torsion springs are arranged between the middle of the inner partition plate 363 and the dust storage tray 33, and between the middle of the outer partition plate 364 and the dust storage tray 33. The two ends of the torsion spring corresponding to the inner partition plate 363 are respectively fixedly connected to the inner partition plate 363 and the dust storage tray 33, and the two ends of the torsion spring corresponding to the outer partition plate 364 are respectively fixedly connected to the outer partition plate 364 and the dust storage tray 33.

[0054] When the dust storage tray 33 rotates at a low speed, the gravity block 361 moves towards the hollow mounting frame 32 under the action of centrifugal force, and the elastic rope 362 is stretched and deformed accordingly. During the movement of the gravity block 361, it contacts the inner partition plates 363 on both sides and pushes them to deflect, and the torsion springs corresponding to the inner partition plates 363 are twisted and deformed accordingly. Under the action of centrifugal force, the dust in the dust storage tray 33 enters between the inner partition plate 363 and the outer partition plate 364 from the opening of the inner partition plate 363. After the dust storage tray 33 rotates at a high speed, the centrifugal force increases and the gravity block 361 continues to move towards the hollow mounting frame 32. The gravity block 361 disengages from the position of the inner partition plate 363 and begins to contact the outer partition plate 364. The torsion spring corresponding to the inner partition plate 363 resets and the inner partition plate 363 resets. The inner partition plate 363 then isolates the internal space of the dust storage tray 33. After the gravity block 361 pushes the outer partition plate 364 to deflect, the torsion spring corresponding to the outer partition plate 364 is twisted and deformed accordingly. The collected dust continues to enter the interior of the hollow mounting frame 32 under the action of centrifugal force. At this time, the external air extraction device can clean the dust collected in the hollow mounting frame 32. After the dust storage tray 33 stops rotating, the gravity block 361, the inner partition plate 363 and the outer partition plate 364 reset accordingly.

[0055] Three different centrifugal forces are provided for the gravity block 361 by using three motion states of the dust storage tray 33. The gravity block 361 can sequentially push the inner partition plate 363 and the outer partition plate 364 to deflect, and the dust collected in the dust storage tray 33 can be gradually moved towards the hollow mounting frame 32. The dust in the dust storage tray 33 is cleaned while ensuring the sealing of the side wall of the dust storage tray 33, thereby avoiding the escape of harmful waste gas.

[0056] Figures 2-3 In, a mounting piece 37 is fixedly connected to the top of the dust removal fiber mesh 31, and a mounting block 38 that is rotationally sealed with the dust storage tray 33 is arranged at the bottom of the dust removal fiber mesh 31. The mounting piece 37 is fixedly connected to the mounting frame and the mounting block 38 by screws.

[0057] After stopping the air intake work, the rotary sealing cover 20 removes the hollow mounting frame 32. After removing the screws of the mounting piece 37, the dust removal fiber mesh 31 can be replaced, and the mounting block 38 that is rotationally sealed with the dust storage tray 33 can be sealed to prevent waste gas from entering through the middle of the dust removal fiber mesh 31.

[0058] Figures 2-4 In, a rubber sheet 39 is arranged on the outer side of the hollow mounting frame 32, and the rubber sheet 39 seals the surface between the hollow mounting frame 32 and the inner wall of the connecting pipe 10.

[0059] The arranged rubber sheet 39 can seal the surface between the hollow mounting frame 32 and the inner wall of the connecting pipe 10, preventing waste gas from passing through the outside of the hollow mounting frame 32, thereby ensuring the dust removal work of the waste gas.

[0060] Figure 3 , Figure 4 and Figure 6 In Figure 3 , Figure 4 , and Figure 6 , a connecting rod 342 is provided in the middle of the rotating shaft 341. The middle of the rotating shaft 341 is provided in a disconnected state, and the connecting rod 342 is fixedly connected to both ends of the rotating shaft 341 by bolts.

[0061] One section of the rotating shaft 341 can be disconnected at the position of the connecting rod 342, and the dust removal fiber mesh 31 can be removed or inserted from the disconnected position of the rotating shaft 341, so as to facilitate the replacement of the dust removal fiber mesh 31.

[0062] Figure 1 and Figure 3 In Figure 3 , an anti-slip layer is provided on the top of the sealing cover 20, and the surface of the anti-slip layer is provided in a concave-convex shape.

[0063] The anti-slip layer of the sealing cover 20 can increase the static friction force to facilitate the removal of the sealing cover 20.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them.

Claims

1. The exhaust gas treatment device of artificial stone production line is characterized by: include: A connecting pipe (10), the connecting pipe (10) connecting the air inlet pipe and the inlet of the reaction tank, and a sealing cover (20) is provided on the top of the connecting pipe (10); A dust removal component (30), the dust removal component (30) being located in the connecting pipe (10), the dust removal component (30) comprising a dust removal fiber net (31), a hollow mounting frame (32) and a driving member (34), a dust storage plate (33) having through holes (332) being rotatably plugged into the bottom of the hollow mounting frame (32), partition plates (331) being arranged equidistantly in the inner circumference of the dust storage plate (33) to divide the dust storage plate (33) into a plurality of dust storage spaces, and the driving member (34) driving the dust storage plate (33) to rotate at a low speed or a high speed; The exhaust gas passes through the through hole (332) of the dust storage plate (33) and is filtered by the dust-removed fiber net (31) before entering the reaction tank. The driving member (34) drives the dust storage plate (33) to rotate so that the dividing plate cleans the surface of the dust fiber net. The cleaned dust is collected in the direction of the hollow mounting frame (32) under the action of centrifugal force. The driving member (34) comprises a rotating shaft (341) and a fan blade member (343) fixedly connected to the rotating shaft (341); the fan blade member (343) is pushed by the exhaust gas to drive the rotating shaft (341) to rotate; one end of the rotating shaft (341) penetrates the dust removal fiber net (31) and extends into the sealing cover (20); The driving member (34) further comprises an adjusting portion (35), wherein the adjusting portion (35) comprises a lifting block (355) and a limiting block (351) coaxially connected to the rotating shaft (341); an adjusting screw rod (352) threadedly connected to the sealing cover (20) is rotatably inserted at the top of the lifting block (355); a plurality of elastic sheets (353) are arranged at the bottom of the lifting block (355); a return spring (354) is arranged between the elastic sheet (353) and the lifting block (355); after the lifting block (355) drives the elastic sheet (353) to move downward, the elastic sheet (353) contacts the limiting block (351) to reduce friction or fix it by static friction, and the rotating shaft (341) can drive the dust storage tray (33) to perform three kinds of movements: low-speed rotation, high-speed rotation and stationary movement; The dust storage pan (33) is provided with an isolation portion (36) at a position of the partition plate (331), the isolation portion (36) comprising a gravity block (361), one end of the gravity block (361) being fixedly connected to the partition plate (331) via an elastic rope (362), an inner partition plate (363) and an outer partition plate (364) being provided on both sides of the other end of the gravity block (361), and a torsion spring being provided between the middle portions of the inner partition plate (363) and the outer partition plate (364) and the dust storage pan (33).

2. The artificial stone production line waste gas treatment device according to claim 1 is characterized in that: A mounting plate (37) is fixedly connected to the top of the dust removal fiber net (31), a mounting block (38) rotatably sealed with the dust storage disk (33) is provided at the bottom of the dust removal fiber net (31), and the mounting plate (37) is fixedly connected to the mounting frame and the mounting block (38) by means of screws.

3. The artificial stone production line waste gas treatment device according to claim 1 is characterized in that: A rubber sheet (39) is provided on the outside of the hollow mounting frame (32), and the rubber sheet (39) seals the hollow mounting frame (32) and the inner wall surface of the connecting pipe (10).

4. The artificial stone production line waste gas treatment device according to claim 1, characterized in that: A connecting rod (342) is provided in the middle of the rotating shaft (341); the middle of the rotating shaft (341) is provided in a disconnected state; the connecting rod (342) is fixedly connected to both ends of the rotating shaft (341) by bolts.

5. The artificial stone production line waste gas treatment device according to claim 1 is characterized in that: An anti-slip layer is arranged on the top of the sealing cover (20), and the surface of the anti-slip layer is arranged in a concave-convex shape.

6. The working method of the waste gas treatment device of an artificial stone production line according to any one of claims 1 to 5, characterized in that: The following steps are included: S1. Gas dust removal; The collected gas is transported to the reaction tank through the air inlet pipe and the connecting pipe (10), and is dedusted by the dedusting fiber net (31) when passing through the connecting pipe (10); S2, cleaning the dust removal fiber net (31); The driving member (34) utilizes the flow of gas to drive the dust storage plate (33) to rotate, and the partition plate (331) moves at the bottom of the dust removal fiber net (31) to clean the dust removal fiber net (31); S3, fly ash collection; After the dust removed from the dust removal fiber net (31) falls on the surface of the dust storage plate (33), the dust is collected into the interior of the hollow mounting frame (32) under the action of centrifugal force for subsequent processing.

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