A waste gas treatment device for brick and tile calcining line

Abstract

The present invention provides an exhaust gas treatment device for a brick and tile calcining line, which relates to the technical field of exhaust gas treatment, and comprises an air collecting hood, wherein the top air outlet end of the air collecting hood is connected to a desulfurization treatment box, and the outlet end of the desulfurization treatment box is connected to a denitrification treatment box, the denitrification treatment box is connected to a concentration box, and the air collecting hood, the desulfurization treatment box, the denitrification treatment box and the concentration box are connected by a pipeline, and a top frame is arranged inside the concentration box. Compared with the prior art, by setting two groups of clamping assemblies and driving assemblies for coordinated switching, the bag strips can be pressed into an arc structure to filter and separate small particles in the exhaust gas, and after the clamping assembly is switched, the used clamping assembly can be cleaned and the used bag strips can be replaced, and at the same time, the filter screen in the air collecting hood will also be replaced synchronously under the drive of the first motor to ensure the smoothness of the filtering effect, save time for manual cleaning, and can be used continuously with a shorter time for pausing for cleaning.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device for a brick and tile calcining line. Background Art

[0002] Brick and tile production is a large-scale production process, so the amount of waste gas emissions is relatively large. During the crushing, screening, mixing and other processes of raw materials, a certain amount of dust waste gas will also be generated. Due to the diversity of raw materials and fuels, the types and concentrations of pollutants in the waste gas of brick and tile factories will also vary, but they usually contain a variety of inorganic pollutants and particulate matter.

[0003] The waste gas treatment process of a brick and tile factory usually includes the following steps: Waste gas collection: The waste gas generated during the production process is collected through gas collection hoods, pipes and other equipment to prevent it from being directly discharged into the atmosphere. Pretreatment: The collected waste gas is pretreated, such as cooling and dust removal, to remove large particles and lower the temperature in preparation for subsequent treatment. Desulfurization treatment: Desulfurization equipment is used to remove sulfur dioxide from the waste gas. Denitrification treatment: For waste gas containing nitrogen oxides, denitrification treatment is required. Dust removal treatment: The waste gas after desulfurization and denitrification treatment may still contain a certain amount of particulate matter, so further dust removal treatment is required. Common dust removal equipment includes bag dust collectors, electrostatic precipitators, etc. Standard emission: The waste gas after the above treatment needs to meet the national or local emission standards before it can be discharged. Before discharge, online monitoring is usually carried out to ensure that the quality of the waste gas is qualified.

[0004] In the above technical method, a common problem is that the filter nets and bags used to filter and separate particulate matter in the exhaust gas will accumulate more particles on their surface after repeated use, thus affecting the filtering effect, and the separated particles are difficult to clean, and need to be manually cleaned and washed regularly to ensure patency. However, this method is relatively cumbersome, the manual cleaning efficiency is low, and it is not convenient for the continuous use of the equipment. Summary of the invention

[0005] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an exhaust gas treatment device for a brick and tile calcining line to solve the problems raised in the above-mentioned background technology. The present invention has a novel structure. By setting two groups of clamping components and driving components for coordinated switching, the bag strips can be pressed into an arc structure to filter and separate small particles in the exhaust gas. After the clamping components are switched, the used clamping components can be cleaned and the used bag strips can be replaced. At the same time, the filter screen in the air collecting hood will also be replaced synchronously under the drive of the first motor to ensure the smoothness of the filtering effect, save time for manual cleaning, and can be used continuously with a shorter time for suspending cleaning.

[0006] In order to achieve the above-mentioned purpose, the present invention is implemented through the following technical scheme: an exhaust gas treatment device for a brick and tile calcining line, comprising an air collecting hood, a desulfurization treatment box is connected to the air outlet end of the top of the air collecting hood, and a denitrification treatment box is connected to the outlet end of the desulfurization treatment box, the denitrification treatment box is connected to a central box, and the air collecting hood, the desulfurization treatment box, the denitrification treatment box and the central box are connected by a pipeline, a top frame is provided inside the central box, and a bottom frame is fixed to the central box at a position perpendicular to the bottom of the top frame, a clamping assembly is provided between the bottom frame and the top frame, and the clamping assembly includes an upper frame and a lower frame, the The upper frame contacts the bottom of the top frame, and the lower frame contacts the top of the bottom frame. An arc groove is provided between the upper frame and the top frame, and straight grooves are provided on both sides of the arc groove. The cloth bag strips slide through the straight grooves and the arc grooves. Both ends of the cloth bag strips are rolled up on the second winding seats. Two groups of the second winding seats are respectively fixed on the outer walls of both sides of the central box. The clamping assembly is provided with two groups. A driving assembly is provided in the middle of the two groups of the clamping assemblies. The driving assembly includes a rotating frame, which is composed of a connecting plate and a telescopic column. The connecting plates at the upper and lower ends of the rotating frame are connected to the upper frame and the lower frame of the two groups of clamping assemblies.

[0007] Furthermore, a first winding seat is fixedly installed on the outer walls of both sides of the air collecting hood, a filter screen is wound on the winding shaft of the first winding seat, and the filter screen is inserted into the inlet end of the air collecting hood. A collecting box is fixed on the inner walls of both sides of the air collecting hood, and a scraper is fixed on the top of the collecting box. The scraper is in sliding contact with the surface of the filter screen, and the top of the collecting box is open.

[0008] Furthermore, a first motor is fixed at the position of the second winding seat on one side of the central box, and the output end of the first motor is fixedly connected to the winding shaft of the second winding seat, and the winding shafts of the first winding seat and the second winding seat are connected by an axle rod.

[0009] Furthermore, the driving assembly also includes a second motor, a second motor is fixed at a position inside the central box at the bottom of the rotating frame, and an output end of the second motor is fixedly connected to the bottom of the telescopic column of the rotating frame, an electric push rod is fixed to the outside of the lower frame, and an extended end of the electric push rod is fixedly connected to the upper frame through a connecting plate.

[0010] Furthermore, an insert block is fixed on the top of one side of the upper frame, and a slot is provided at the bottom of the top frame at a position corresponding to the insert block, and the insert block can be slidably inserted into the slot.

[0011] Furthermore, the slot has openings on both sides, and the slot is an arc-shaped groove. The path of the slot is the same as the rotation path of the rotating frame, and the insert block is in extrusion contact with the bottom of the slot.

[0012] Furthermore, two groups of spring telescopic rods are fixed to a side of the bottom frame away from the driving assembly, and the extended ends of the spring telescopic rods are fixedly connected to the top frame.

[0013] Furthermore, a bellows is fixed to the upper end of the top frame, and the top of the bellows is fixedly connected to the air inlet pipe.

[0014] Furthermore, an exhaust pipe is provided on the side of the bottom frame away from the driving assembly, and the exhaust pipe passes through the central box. A sewage box is provided at the bottom of another group of clamping assemblies inside the central box. A drain pipe is fixed between the sewage box and the bottom frame, and the drain pipe passes through the central box.

[0015] Furthermore, a spray row is installed on the outer wall of the central box opposite to the top of the water collecting box, and a plurality of nozzles are arranged on the surface of the spray row. A water tank is installed near the spray row in the central box, and the water tank is connected to the spray row through a pipe.

[0016] Beneficial effects of the present invention:

[0017] 1. In the present invention, driven by the first motor, the first winding seat and the second winding seat keep the winding and unwinding synchronously, and the new filter screen and the bag strip are replaced synchronously to maintain the efficient separation and filtration effect of large and small particles in the exhaust gas. When the filter screen moves to the first winding seat on one side, it contacts the scraper, and the scraper cleans the large particle impurities accumulated on the surface of the filter screen and sends them into the collection box. A cooling fan can be arranged inside the air collecting hood to pre-treat the exhaust gas by cooling.

[0018] 2. The present invention pushes the upper frame away from the lower frame through the electric push rods on one side of the top frame and the bottom frame, thereby releasing the squeezing effect on the bag strips. At this time, the bag strips gradually become flat as they are rolled up, and the second motor drives the rotating frame to rotate, removing the upper frame and the lower frame from the upper and lower ends of the bag strips. At this time, the particles remaining on the bag strips fall into the inside of the collection box and are cleaned manually, and the cleaning process does not require stopping the operation of the equipment.

[0019] 3. The bag strips of the present invention can be replaced by rewinding and unreeling the two second reeling seats, ensuring that the bag strips clamped inside the clamping assembly are brand new. The rotating frame continues to rotate to wind another set of spare clamping assemblies around the top and bottom of the bag strips, squeeze and clamp the surface, and maintain the arc structure of the bag strips. The top frame corresponds to the position of the upper frame plug-in block and has slots with openings at both ends, which can be used for the clamping assemblies to enter from both ends, and the upper frame is driven to move by the contact at the bottom. Specifically, after the upper frame leaves the top of the bag strips, the plug-in block will move from One end of the slot slides out, and the top frame is lifted up by the elastic force of the spring telescopic rod without being restricted. At this time, the bellows contracts to keep the top frame connected with the air intake pipe. Then the upper frame of the other group rotates to the bottom of the top frame, and the plug slides in from the other end of the slot and moves the upper frame downward through the electric push rod. Under the squeezing of the plug and the slot, the top frame also moves downward, realizing the squeezing and shaping of the bag strips by the upper and lower frames, and forming a sealed chamber between the top frame, upper frame, lower frame and bottom frame to filter the air and separate particles.

[0020] 4. In the present invention, the gas filtered by the curved bag strips is sent out from the exhaust pipe of the bottom frame for detection. When the detection meets the standards, it is sent out. The water pump of the water tank sends clean water to the spray row, and sprays it on the inner wall of the clamping component to be cleaned through the nozzle to clean the particles adhered to the inner wall. The sewage enters the sewage tank. Therefore, the bottom frame is connected to the sewage tank through the drain pipe, and some water will also enter the bottom frame. The purpose of this is to adsorb the small particle impurities still contained in the bag strips after filtration, and send them out uniformly through the drain pipe.

[0021] 5. Compared with the prior art, the present invention, by setting two groups of clamping components and driving components for coordinated switching, can press the bag strips into an arc structure to filter and separate small particles in the exhaust gas. After the clamping components are switched, the used clamping components can be cleaned and the used bag strips can be replaced. At the same time, the filter screen in the air collecting hood will also be replaced synchronously under the drive of the first motor to ensure the smoothness of the filtering effect, save time for manual cleaning, and can be used continuously with a shorter time for pausing for cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of an exhaust gas treatment device for a brick and tile calcining line according to the present invention;

[0023] Figure 2 It is a schematic diagram of the connection between the first winding seat and the second winding seat of the waste gas treatment device for a brick and tile calcining line of the present invention;

[0024] Figure 3 This is a schematic diagram of the interior of a centralized box of an exhaust gas treatment device for a brick and tile calcining line according to the present invention;

[0025] Figure 4This is a schematic diagram of the structure of a clamping assembly for a waste gas treatment device for a brick and tile calcining line according to the present invention;

[0026] Figure 5 This is a schematic diagram of the positional relationship between the top frame and the bottom frame of an exhaust gas treatment device for a brick and tile calcining line according to the present invention;

[0027] Figure 6 This is a schematic diagram of the connection between a clamping assembly and a driving assembly of an exhaust gas treatment device for a brick and tile calcining line according to the present invention;

[0028] Figure 7 A schematic diagram of the connection between a plug block and a slot of an exhaust gas treatment device for a brick and tile calcining line according to the present invention;

[0029] Figure 8 A schematic diagram of the separation of a plug block and a slot for a waste gas treatment device for a brick and tile calcining line according to the present invention;

[0030] Fig. 9 The present invention is a schematic diagram of the side structure of an air collecting hood of an exhaust gas treatment device for a brick and tile calcining line.

[0031] In the figure: 1. Air collecting hood; 11. First winding seat; 12. Filter; 13. Collecting box; 14. Scraper; 2. Desulfurization treatment box; 3. Denitrification treatment box; 4. Concentration box; 41. Air inlet pipe; 42. Water tank; 43. Spray row; 44. First motor; 45. Second winding seat; 46. Bellows; 47. Bag strip; 48. Top frame; 49. Bottom frame; 410. Drain box; 411. Drain pipe; 412. Spring telescopic rod; 413. Exhaust pipe; 5. Clamping assembly; 51. Lower frame; 52. Upper frame; 53. Arc groove; 54. Linear groove; 6. Driving assembly; 61. Second motor; 62. Rotating frame; 63. Electric push rod; 64. Insert block; 65. Slot. DETAILED DESCRIPTION

[0032] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0033] See also Figures 1 to 9The present invention provides a technical solution: a waste gas treatment device for a brick and tile calcining line, comprising a gas collecting hood 1, a desulfurization treatment box 2 is connected to the top gas outlet end of the gas collecting hood 1, and a denitration treatment box 3 is connected to the outlet end of the desulfurization treatment box 2, and the denitration treatment box 3 is connected to a concentration box 4, and the gas collecting hood 1, the desulfurization treatment box 2, the denitration treatment box 3 and the concentration box 4 are connected by a pipeline, a top frame 48 is provided inside the concentration box 4, and a bottom frame 49 is fixed to the concentration box 4 at a position perpendicular to the bottom of the top frame 48, and a bottom frame 49 is provided between the bottom frame 49 and the top frame 48. There is a clamping assembly 5, which includes an upper frame 52 and a lower frame 51. The upper frame 52 contacts the bottom of the top frame 48, and the lower frame 51 contacts the top of the bottom frame 49. An arc groove 53 is provided between the upper frame 52 and the top frame 48, and straight grooves 54 are provided on both sides of the arc groove 53. The cloth bag strip 47 slides through the straight groove 54 and the arc groove 53. The two ends of the cloth bag strip 47 are rolled up on the second winding seat 45. The two groups of the second winding seat 45 are respectively fixed on the outer walls of the two sides of the central box 4. The clamping assembly 5 has two groups, and the two groups of A driving assembly 6 is provided in the middle of the clamping assembly 5, and the driving assembly 6 includes a rotating frame 62, and the rotating frame 62 is composed of a connecting plate and a telescopic column. The connecting plates at the upper and lower ends of the rotating frame 62 are connected to the upper frame 52 and the lower frame 51 of the two sets of clamping assemblies 5. The desulfurization treatment box 2 and the denitration treatment box 3 of the device are both prior art, wherein the common desulfurization technology of the desulfurization treatment box 2 includes wet desulfurization such as limestone-gypsum method, double alkali method, etc. and dry desulfurization, and the common denitration technology of the denitration treatment box 3 includes selective catalytic reduction SCR denitration and selective Selective non-catalytic reduction SNCR denitrification, etc. When using the device, the gas collecting hood 1 is arranged on the brick and tile calcining line, and the exhaust gas is sucked in by a fan arranged inside the gas collecting hood 1, and the large particle impurities of the exhaust gas are filtered through the filter 12, and the desulfurization and denitrification treatment boxes 2 and the denitrification treatment box 3 are processed, and finally sent to the interior of the central box 4, and the bag strips 47 are shaped by the clamping assembly 5, and the exhaust gas is secondary separated and filtered through the arc-shaped bag strips 47 to remove small particle impurities, and finally the air that meets the standards is discharged, and the clamping assembly 5 is cleaned.

[0034] In this embodiment, a first winding seat 11 is fixedly installed on the outer walls of both sides of the air collecting hood 1, and a filter screen 12 is rolled up on the winding shaft of the first winding seat 11. The filter screen 12 penetrates the inlet end of the air collecting hood 1, and a collection box 13 is fixed on the inner walls of both sides of the air collecting hood 1, and a scraper 14 is fixed on the top of the collection box 13. The scraper 14 is in sliding contact with the surface of the filter screen 12, and the top of the collection box 13 is open. A first motor 44 is fixed at the position of the second winding seat 45 on the corresponding side of the concentrating box 4, and the output end of the first motor 44 is fixed to the winding shaft of the second winding seat 45. The first winding seat 11 and the second winding seat 45 are connected by an axle rod. Driven by the first motor 44, the winding and unwinding of the first winding seat 11 and the second winding seat 45 are kept synchronous. The new filter screen 12 and the bag strip 47 are replaced synchronously to maintain the efficient separation and filtration effect of large and small particles in the exhaust gas. When the first winding seat 11 moves to one side, the filter screen 12 contacts the scraper 14, and the scraper 14 cleans the large particle impurities accumulated on the surface of the filter screen 12 and sends them into the collection box 13. A cooling fan can be arranged inside the air collecting hood 1 to pre-treat the exhaust gas by cooling.

[0035] In this embodiment, the driving assembly 6 also includes a second motor 61. The second motor 61 is fixed at a position located at the bottom of the rotating frame 62 inside the central box 4, and the output end of the second motor 61 is fixedly connected to the bottom of the telescopic column of the rotating frame 62. An electric push rod 63 is fixed to the outside of the lower frame 51, and the extended end of the electric push rod 63 is fixedly connected to the upper frame 52 through a connecting plate. An insert block 64 is fixed to the top of one side of the upper frame 52, and a slot 65 is provided at the bottom of the top frame 48 corresponding to the position of the insert block 64. The insert block 64 can be slidably inserted into the slot 65. There are openings on both sides of the slot 65, and the slot 65 is an arc-shaped groove. The path of the slot 65 is the same as the rotation path of the rotating frame 62. The insert block 64 and the slot The bottom of the bag strip 47 is squeezed and contacted with the bottom of the bag strip 47, two groups of spring telescopic rods 412 are fixed on the side of the bottom frame 49 away from the driving assembly 6, and the extended ends of the spring telescopic rods 412 are fixedly connected to the top frame 48, and the upper end of the top frame 48 is fixed with a bellows 46, and the top of the bellows 46 is fixedly connected to the air inlet pipe 41, and the second motor 61 drives the rotating frame 62 to rotate. Before this process, the upper frame 52 is first pushed away from the lower frame 51 by the electric push rod 63 on one side of the top frame 48 and the bottom frame 49 to release the squeezing effect on the bag strip 47. At this time, the bag strip 47 gradually becomes flat with the effect of winding, and the second motor 61 drives the rotating frame 62 to rotate, and removes the upper frame 52 and the lower frame 51 from the upper and lower ends of the bag strip 47. At this time, the residual on the bag strip 47 The retained particles fall into the interior of the central box 4 and are cleaned manually. The cleaning process does not require stopping the operation of the equipment, and additional dust collection equipment can also be set up inside the central box 4 to absorb the separated and filtered particles. The bag strips 47 can be replaced by the reeling and unreeling of the two second reeling seats 45 to ensure that the bag strips 47 clamped inside the clamping assembly 5 are brand new. The rotating frame 62 continues to rotate to wrap another set of spare clamping assemblies 5 around the top and bottom of the bag strips 47, squeeze and clamp the surface, and maintain the arc structure of the bag strips 47. The top frame 48 corresponds to the position of the upper frame 52 plug-in block 64, and the slots 65 are opened at both ends to allow the clamping assembly 5 to enter from both ends, and the upper frame 52 drives the top frame 48 to move through the contact at the bottom. Specifically, after the upper frame 52 leaves the top of the bag strip 47, the plug 64 will slide out from one end of the slot 65, and the top frame 48 will be lifted upward by the elastic force of the spring telescopic rod 412 without being restricted. At this time, the bellows 46 contracts to keep the top frame 48 connected with the air inlet pipe 41, and then the upper frame 52 of the other group rotates to the bottom of the top frame 48, and the plug 64 slides in from the other end of the slot 65, and the upper frame 52 is moved downward by the electric push rod 63. Under the squeeze of the plug 64 and the slot 65, the top frame 48 will also move downward, realizing the extrusion and shaping of the bag strip 47 by the upper frame 52 and the lower frame 51, and forming a sealed chamber between the top frame 48, the upper frame 52, the lower frame 51 and the bottom frame 49 to filter the air and separate the particles.

[0036] In this embodiment, an exhaust pipe 413 is provided on the side of the bottom frame 49 away from the driving component 6, and the exhaust pipe 413 passes through the central box 4, and a sewage box 410 is provided at the bottom of another group of clamping components 5 inside the central box 4, and a drainage pipe 411 is fixed between the sewage box 410 and the bottom frame 49, and the drainage pipe 411 passes through the central box 4, and a spray row 43 is installed on the outer wall of the central box 4 at a position opposite to the top of the water collecting tank 42, and a plurality of nozzles are arranged on the surface of the spray row 43, and a water tank 42 is installed near the spray row 43 of the central box 4, and the water tank 42 and the spray row 43 are connected by The pipelines are connected, and the gas filtered by the curved bag strips 47 is sent out from the exhaust pipe 413 of the bottom frame 49 for detection. When the detection meets the standards, it is sent out. The water pump of the water tank 42 sends clean water to the spray row 43, and is sprayed on the inner wall of the clamping component 5 to be cleaned through the nozzle to clean the particles adhering to the inner wall. The sewage enters the sewage tank 410. Therefore, the bottom frame 49 is connected to the sewage tank 410 through the drain pipe 411, and some water will also enter the bottom frame 49. The purpose of this is to adsorb the small particle impurities still contained after filtering by the bag strips 47, and send them out uniformly through the drain pipe 411.

[0037] When the device is used, the air collecting hood 1 is arranged on the brick and tile calcining line, and the exhaust gas is sucked in by a fan arranged inside the air collecting hood 1. Driven by the first motor 44, the first winding seat 11 and the second winding seat 45 are synchronously wound and unwound, and the new filter screen 12 and the bag strip 47 are synchronously replaced to maintain the efficient separation and filtration effect of large and small particles in the exhaust gas. When the first winding seat 11 moves to one side, the filter screen 12 contacts the scraper 14, and the scraper 14 cleans the large particle impurities accumulated on the surface of the filter screen 12 and sends them to the inside of the collection box 13. A cooling fan can be arranged inside the air collecting hood 1 to pre-treat the exhaust gas by cooling it, and the large particle impurities in the exhaust gas are filtered by the filter screen 12, and the desulfurization and denitrification treatment boxes 2 and the denitrification treatment boxes 3 are carried out, and finally sent to the collection Inside the middle box 4, the upper frame 52 is pushed away from the lower frame 51 by the electric push rod 63 on one side of the top frame 48 and the bottom frame 49, thereby releasing the squeezing effect on the bag strips 47. At this time, the bag strips 47 gradually become flat as they are wound up, and the second motor 61 drives the rotating frame 62 to rotate, thereby removing the upper frame 52 and the lower frame 51 from the upper and lower ends of the bag strips 47. At this time, the particles remaining on the bag strips 47 fall into the interior of the centralized box 4 and are cleaned manually. The cleaning process does not require stopping the operation of the equipment, and additional dust collection equipment can also be provided inside the centralized box 4 to absorb the separated and filtered particles. The bag strips 47 can be replaced by rewinding and unwinding the two second winding seats 45, thereby ensuring that the bag strips 47 clamped inside the clamping assembly 5 are brand new, and the rotating frame 62 continues to rotate Another set of spare clamping components 5 is wound around the top and bottom of the bag strip 47, and its surface is squeezed and clamped to maintain the arc structure of the bag strip 47. The top frame 48 corresponds to the position of the upper frame 52 plug block 64, and the slots 65 with openings at both ends can be used for the clamping components 5 to enter from both ends, and the upper frame 52 drives the top frame 48 to move through the contact at the bottom. Specifically, after the upper frame 52 leaves the top of the bag strip 47, the plug block 64 will slide out from one end of the slot 65, and the top frame 48 will be lifted upward by the elastic force of the spring telescopic rod 412 without being restricted. At this time, the bellows 46 contracts to keep the top frame 48 connected with the air inlet pipe 41, and then the upper frame 52 of the other set is rotated to the bottom of the top frame 48, and the plug block 64 slides in from the other end of the slot 65 and is driven by the electric push rod 63 The upper frame 52 moves downward and is squeezed by the plug block 64 and the slot 65, so that the top frame 48 also moves downward, realizing the extrusion and shaping of the bag strip 47 by the upper frame 52 and the lower frame 51, and forming a sealed chamber between the top frame 48, the upper frame 52, the lower frame 51 and the bottom frame 49 to filter the air and separate the particles. The gas filtered by the arc-shaped bag strip 47 is sent out from the exhaust pipe 413 of the bottom frame 49 for detection. When the detection meets the standard, it is sent out. The water pump of the water tank 42 sends clean water to the spray row 43, which is sprayed on the inner wall of the clamping component 5 to be cleaned through the nozzle to clean the particles adhered to the inner wall, and the sewage enters the sewage tank 410. Therefore, the bottom frame 49 is connected with the sewage tank 410 through the drain pipe 411, and part of the water will also enter the bottom frame 49.The purpose of this is to absorb the small particles of impurities still contained in the bag strip 47 after filtering, and send them out through the drain pipe 411.

[0038] The basic principles and main features of the present invention and the advantages of the present invention are shown and described above. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An exhaust gas treatment device for a brick and tile calcining line, comprising an air collecting hood (1), characterized in that: The top gas outlet end of the gas collecting hood (1) is connected to a desulfurization treatment box (2), and the outlet end of the desulfurization treatment box (2) is connected to a denitration treatment box (3), and the denitration treatment box (3) is connected to a concentration box (4), and the gas collecting hood (1), the desulfurization treatment box (2), the denitration treatment box (3) and the concentration box (4) are connected by a pipeline, a top frame (48) is provided inside the concentration box (4), and a bottom frame (49) is fixed to the concentration box (4) at a position perpendicular to the bottom of the top frame (48), and a clamping assembly (5) is provided between the bottom frame (49) and the top frame (48), and the clamping assembly (5) comprises an upper frame (52) and a lower frame (51), the upper frame (52) is in contact with the bottom of the top frame (48), and the lower frame (51) is in contact with the top of the bottom frame (49), An arc groove (53) is provided between the upper frame (52) and the top frame (48), and straight grooves (54) are provided on both sides of the arc groove (53). The cloth bag strip (47) slides through the straight groove (54) and the arc groove (53). The two ends of the cloth bag strip (47) are rolled up on the second rolling seat (45). The two groups of the second rolling seats (45) are respectively fixed on the outer walls of the two sides of the central box (4). The clamping assembly (5) is provided with two groups. A driving assembly (6) is provided in the middle of the two groups of the clamping assembly (5). The driving assembly (6) includes a rotating frame (62). The rotating frame (62) is composed of a connecting plate and a telescopic column. The connecting plates at the upper and lower ends of the rotating frame (62) are connected to the upper frame (52) and the lower frame (51) of the two groups of the clamping assembly (5).

2. The waste gas treatment device for a brick and tile calcining line according to claim 1 is characterized by: A first winding seat (11) is fixedly mounted on the outer walls on both sides of the gas collecting hood (1), a filter screen (12) is wound on the winding shaft of the first winding seat (11), the filter screen (12) is inserted into the inlet end of the gas collecting hood (1), a collecting box (13) is fixed on the inner walls on both sides of the gas collecting hood (1), and a scraper (14) is fixed on the top of the collecting box (13), the scraper (14) is in sliding contact with the surface of the filter screen (12), and the top of the collecting box (13) is open.

3. The waste gas treatment device for a brick and tile calcining line according to claim 2 is characterized by: A first motor (44) is fixed at a position of the second winding seat (45) on one side of the central box (4), and an output end of the first motor (44) is fixedly connected to a winding shaft of the second winding seat (45). The winding shafts of the first winding seat (11) and the second winding seat (45) are connected via a shaft.

4. The waste gas treatment device for a brick and tile calcining line according to claim 1 is characterized by: The driving assembly (6) further comprises a second motor (61). The second motor (61) is fixed at a position located at the bottom of the rotating frame (62) inside the central box (4), and an output end of the second motor (61) is fixedly connected to the bottom of a telescopic column of the rotating frame (62). An electric push rod (63) is fixed to the outside of the lower frame (51), and an extended end of the electric push rod (63) is fixedly connected to the upper frame (52) via a connecting plate.

5. The waste gas treatment device for a brick and tile calcining line according to claim 4 is characterized by: An insert block (64) is fixed to the top of one side of the upper frame (52), and a slot (65) is provided at the bottom of the top frame (48) at a position corresponding to the insert block (64), and the insert block (64) can be slidably inserted into the slot (65).

6. The waste gas treatment device for a brick and tile calcining line according to claim 5 is characterized by: The slot (65) has openings on both sides, and the slot (65) is an arc-shaped groove. The path of the slot (65) is the same as the rotation path of the rotating frame (62), and the insert block (64) is in extrusion contact with the bottom of the slot (65).

7. The waste gas treatment device for a brick and tile calcining line according to claim 1 is characterized by: Two groups of spring telescopic rods (412) are fixed to a side of the bottom frame (49) away from the driving assembly (6), and the extended ends of the spring telescopic rods (412) are fixedly connected to the top frame (48).

8. The waste gas treatment device for a brick and tile calcining line according to claim 7 is characterized by: A bellows (46) is fixed to the upper end of the top frame (48), and the top of the bellows (46) is fixedly connected to the air inlet pipe (41).

9. The waste gas treatment device for a brick and tile calcining line according to claim 1 is characterized by: An exhaust pipe (413) is provided on a side of the bottom frame (49) away from the driving assembly (6), and the exhaust pipe (413) passes through the central box (4); a sewage box (410) is provided inside the central box (4) at the bottom of another group of clamping assemblies (5); a drainage pipe (411) is fixed between the sewage box (410) and the bottom frame (49), and the drainage pipe (411) passes through the central box (4).

10. The waste gas treatment device for a brick and tile calcining line according to claim 9, characterized in that: A spray row (43) is installed on the outer wall of the central box (4) at a position directly opposite to the top of the water tank (42), and a plurality of spray heads are arranged on the surface of the spray row (43). The central box (4) is installed with a water tank (42) near the spray row (43), and the water tank (42) is connected to the spray row (43) through a pipeline.

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