Intelligent catalytic oxidation incineration device for waste gas treatment

Abstract

The application discloses an intelligent catalytic oxidation incineration device for waste gas treatment, which comprises an air inlet pipe, a dry filter, a pretreatment assembly, a preheating heat exchanger and a catalytic combustion assembly; the air inlet pipe is communicated with the dry filter; a first conveying pipe is arranged between the dry filter and the pretreatment assembly; a second conveying pipe is arranged between the pretreatment assembly and the preheating heat exchanger; a third conveying pipe is arranged between the preheating heat exchanger and the catalytic combustion assembly; the catalytic combustion assembly comprises a catalytic combustion cylinder and a sliding plate; the catalytic combustion cylinder comprises an upper cylinder body and a lower cylinder body; the sliding plate is slidingly arranged between the upper cylinder body and the lower cylinder body; two mounting holes are formed in the sliding plate; a lap edge is arranged at the bottom of the ring wall of each mounting hole; and one catalytic block is arranged in each mounting hole. The application has the effects of realizing quick replacement of the catalyst and prolonging the service life of the catalyst.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, and in particular to an intelligent catalytic oxidation incineration device for waste gas treatment. BACKGROUND

[0002] Catalytic combustion is a highly efficient waste gas treatment technology that converts organic waste gas into harmless carbon dioxide and water while releasing a large amount of energy through catalytic action. In a catalytic combustion device, organic waste gas is first introduced into a reactor, and under the action of a catalyst, the organic matter in the waste gas undergoes an oxidation reaction at a relatively low temperature. The oxidation process is not only highly efficient, but also low in energy consumption, and is therefore an ideal choice for modern waste gas treatment. Catalytic combustion equipment has become one of the important technologies in the field of waste gas treatment due to its high efficiency, low energy consumption and environmental protection performance. Through reasonable design and optimization of operation, catalytic combustion can effectively reduce the emission of harmful gases, and also saves operating costs for enterprises.

[0003] Currently, catalysts used in catalytic oxidation include metal catalysts, oxide catalysts, and composite catalysts, among others. These catalysts will gradually deactivate after being used for a period of time, and therefore need to be replaced. In addition, some external factors can also cause catalysts to deactivate, such as sulfur elements contained in waste gas, which can react with catalysts and cause poisoning and deactivation; some heavy metal elements such as Pb, Hg, and Cd can also cause catalysts to deactivate.

[0004] In view of the above related technology, the inventors believe that the catalytic combustion device described above is susceptible to deactivation under the influence of various factors during use, and needs to be replaced in a timely manner, which reduces the service life of the catalyst and also increases the cost of the reaction process. SUMMARY

[0005] In order to achieve rapid replacement of the catalyst and extend the service life of the catalyst, the present application provides an intelligent catalytic oxidation incineration device for waste gas treatment.

[0006] The intelligent catalytic oxidation incineration device for waste gas treatment provided by the present application adopts the following technical solution:

[0007] The utility model provides an intelligent catalytic oxidation incineration device for waste gas treatment, including air inlet pipe, dry filter, pretreatment component, preheating heat exchanger and catalytic combustion component, one end of air inlet pipe communicates with dry filter, first conveying pipe is arranged in communication between dry filter and pretreatment component, second conveying pipe is arranged in communication between pretreatment component and preheating heat exchanger, third conveying pipe is arranged in communication between preheating heat exchanger and catalytic combustion component, catalytic combustion component includes catalytic combustion cylinder and slip plate, catalytic combustion cylinder includes upper cylinder body and lower cylinder body, slip plate is arranged between upper cylinder body and lower cylinder body, two installation ports are set up on slip plate, and the bottom of the ring wall in installation port is provided with the lap edge, and one catalytic block is placed in each installation port, and the shape of installation port corresponds with the inner diameter shape of catalytic combustion cylinder, and pretreatment component includes desulfurization cylinder.

[0008] Through the above technical scheme, the waste gas is preliminarily dedusted through the dry filter, pretreated through the first conveying pipe into the pretreatment component, heated in the preheating heat exchanger after passing through the pretreatment component, and catalytically combusted in the catalytic combustion cylinder after passing through the second conveying pipe.

[0009] Optionally, the pretreatment component further comprises a dust collection sleeve and an electric dust collection plate, the dust collection sleeve is sleeved outside the desulfurization cylinder, the dust collection sleeve is in communication with one end of the first conveying pipe, the sidewall of the desulfurization cylinder is provided with an air inlet in communication with the inner cavity of the dust collection sleeve, the electric dust collection plate is in the shape of a cylinder, the electric dust collection plate is arranged outside the dust collection sleeve, the desulfurization cylinder is provided with a spray branch pipe, the spray branch pipe is provided with a spray head, one end of the spray branch pipe is connected with a return pipe, one end of the return pipe is in communication with the bottom of the desulfurization cylinder, and the return pipe is provided with a circulating pump.

[0010] By adopting the technical scheme, the gas filtered preliminarily enters the dust collecting sleeve, the electric dust collecting plate is in an electrified state, and the heavy metal dust in the gas is adsorbed on the inner bottom wall of the dust collecting sleeve under the action of the electric field, so that the heavy metal dust is removed, and the possibility that the heavy metal dust enters the subsequent catalytic combustion device to cause the catalytic block to be poisoned and deactivated is reduced. The gas passing through the dust collecting sleeve enters the desulfurization cylinder through the air inlet, the desulfurization cylinder is filled with a desulfurization solvent, and the circulating pump is started to spray the desulfurization solvent at the bottom of the desulfurization cylinder into the desulfurization cylinder through the reflux pipe and the plurality of spray nozzles, so that the gas is desulfurized, the content of sulfur in the gas is reduced, and the possibility that the catalyst is poisoned and deactivated in the sulfur environment is reduced. Through the pretreatment, the service life of the catalyst is prolonged.

[0011] Optionally, a rotating circular plate is rotatably arranged on the inner ring wall of the desulfurization cylinder through a rotating hinge, the rotating circular plate corresponds to the air inlet, the area of the rotating circular plate is greater than the inner area of the air inlet, a connecting torsional spring is arranged on the rotating hinge, and the rotating circular plate is attached to the inner wall of the desulfurization cylinder under the action of the connecting torsional spring in a natural state. An inclined baffle is arranged on the inner wall of the desulfurization cylinder, and the inclined baffle is arranged above the rotating circular plate.

[0012] By adopting the technical scheme, the rotating circular plate is attached to the inner wall of the desulfurization cylinder under the action of the connecting torsional spring in a natural state, and the liquid in the desulfurization cylinder is prevented from entering the dust collecting sleeve. The inclined baffle shields the air inlet, and the possibility that the liquid falls around the air inlet during spraying is reduced.

[0013] Optionally, a spiral guide plate is arranged between the dust collecting sleeve and the desulfurization cylinder, and the air inlet is arranged at the bottom of the desulfurization cylinder.

[0014] By adopting the technical scheme, the spiral guide plate guides the airflow entering the dust collecting sleeve, prolongs the moving path of the airflow in the dust collecting sleeve, and helps the heavy metal dust in the dust collecting sleeve to be more fully adsorbed and removed, thereby improving the adsorption and treatment effect of the heavy metal dust.

[0015] Optionally, the catalytic combustion assembly further comprises a support frame, one of the support frames is arranged at each of opposite ends of the catalytic combustion cylinder, the two support frames are located on the same straight line, a limiting end plate is vertically arranged on the top surface of the support frame away from the catalytic combustion cylinder, the top surface of the support frame is slidably attached to the bottom surface of the sliding plate, a first connecting magnetic block is arranged at each of the two ends of the sliding plate in the length direction, a second connecting magnetic block corresponding to the first connecting magnetic block is arranged on the side of the limiting end plate close to the catalytic combustion cylinder, and when the sliding plate moves to abut against one of the limiting end plates, one of the catalytic blocks corresponds to the position of the catalytic combustion cylinder.

[0016] By adopting the technical scheme, the support frame supports the bottom surface of the sliding plate, the limiting end plate limits the moving stroke of the sliding plate, and the mounting port can correspond to the position of the catalytic combustion cylinder. The first connecting magnetic block and the second connecting magnetic block are arranged to position the sliding plate, so that the sliding plate does not move on the support frame during use of one of the catalytic blocks.

[0017] Optionally, the top surface of the support frame is provided with a containing groove, a top-out block is slidably arranged in the containing groove, a top-out spring is arranged between the top-out block and the inner bottom wall of the containing groove, and the top end of the top-out block extends out of the containing groove under the action of the top-out spring in a natural state. When one end of the sliding plate abuts against the limiting end plate, the position of the top-out block corresponds to the alignment of the catalytic block, and one end of the top-out block close to the limiting end plate and one end of the top-out block close to the catalytic combustion cylinder are both provided with an abutting inclined surface, and the cross-sectional area of the top-out block expands from top to bottom.

[0018] By adopting the technical scheme, when the catalytic block deactivated by reaction moves to above the containing groove with the sliding plate, the top-out block extends out of the containing groove under the action of the top-out spring, and the top-out block ejects the catalytic block in the mounting port, which facilitates the replacement of the operator. The arrangement of the abutting inclined surface enables the end of the sliding plate and the inner wall of the mounting port to be pressed into the containing groove when they contact the top-out block, which facilitates the movement of the sliding plate.

[0019] Optionally, one end of the third conveying pipe is in communication with the upper cylinder body, a gas guide cone cylinder is arranged in the upper cylinder body, a gap is left between the edge of the gas guide cone cylinder and the upper cylinder body, a plurality of connecting rods are connected between the gas guide cone cylinder and the inner wall of the upper cylinder body, and a plurality of gas guide spiral plates are connected to the inner annular wall of the upper cylinder body and are arranged below the gas guide cone cylinder.

[0020] By adopting the technical scheme, the gas guide cone cylinder divides the gas entering the catalytic combustion cylinder, so that the gas can flow uniformly along the inner wall of the upper cylinder body, and the gas guide spiral plate further guides the gas flow, so that the gas flow is in a spiral direction, thereby prolonging the flow stroke and flow time of the gas flow in the catalytic combustion cylinder, enabling the gas flow to react more fully with the catalytic block, and improving the reaction efficiency and the treatment quality of the gas.

[0021] Optionally, activated carbon adsorption blocks are arranged in the desulfurization cylinder, the activated carbon adsorption blocks are arranged above the spray branch pipe, and one end of the second conveying pipe is in communication with the top end of the desulfurization cylinder.

[0022] By adopting the technical scheme, the activated carbon adsorption blocks dehumidify the gas after desulfurization, which is helpful for the gas to be heated and catalytically combusted in subsequent operations.

[0023] To sum up, the present application includes at least one of the following beneficial technical effects:

[0024] 1. By the cooperation of the air inlet pipe, the dry filter, the pretreatment assembly, the preheating heat exchanger and the catalytic combustion assembly, the effect of realizing quick replacement of the catalyst and prolonging the service life of the catalyst is achieved;

[0025] 2. The spiral guide plate guides the airflow entering the dust collecting sleeve, prolongs the moving path of the airflow in the dust collecting sleeve, helps the heavy metal dust therein to be more fully adsorbed and removed, and improves the adsorption treatment effect on the heavy metal dust;

[0026] 3. The activated carbon adsorption block dehumidifies the gas after desulfurization, which helps the gas to be heated and catalytically combusted in subsequent operations. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of an intelligent catalytic oxidation incineration device for waste gas treatment according to an embodiment of the present application.

[0028] Figure 2 is a partial sectional view of the internal structure of the desulfurization cylinder according to an embodiment of the present application.

[0029] Figure 3 is Figure 2 an enlarged view of part A in

[0030] Figure 4 is a partial sectional view of the internal structure of the catalytic combustion cylinder according to an embodiment of the present application.

[0031] Figure 5 is Figure 4 an enlarged view of part B in

[0032] Figure 6 is a structural schematic view of the waste heat collecting pipe and the waste heat branch pipe according to an embodiment of the present application.

[0033] Explanation of reference signs: 1, dry filter; 2, pretreatment assembly; 21, electric dust collecting plate; 22, dust collecting sleeve; 23, desulfurization cylinder; 231, air inlet; 24, spray header; 25, spray branch pipe; 26, spray nozzle; 27, return pipe; 28, circulating pump; 3, preheating heat exchanger; 4, catalytic combustion assembly; 41, catalytic combustion cylinder; 411, upper cylinder body; 412, lower cylinder body; 42, sliding plate; 421, mounting opening; 422, overlapping edge; 423, sealing ring groove; 424, connecting sealing ring; 425, guide groove; 426, moving groove; 43, support frame; 431, containing groove; 44, catalytic block; 5, air inlet pipe; 6, air inlet valve; 7, first conveying pipe; 8, first electromagnetic valve; 9, second conveying pipe; 10, second electromagnetic valve; 11, third conveying pipe; 12, third electromagnetic valve; 13, slag outlet pipe; 14, slag outlet valve; 15, limiting ring; 16, activated carbon adsorption block; 17, rotating disc; 18, rotating hinge; 19, connecting torsional spring; 20, inclined baffle; 29, air guide cone cylinder; 30, connecting rod; 31, air guide spiral plate; 32, exhaust pipe; 33, exhaust valve; 34, limiting end plate; 35, guide roller; 36, first connecting magnetic block; 37, second connecting magnetic block; 38, ejecting block; 381, abutting inclined surface; 39, ejecting spring; 40, spiral guide plate; 45, first clamping sleeve; 46, second clamping sleeve; 47, third clamping sleeve; 48, waste heat branch pipe; 49, waste heat header. DETAILED DESCRIPTION

[0034] The following will be described in detail with reference to the accompanying drawings. Figure 1 - the accompanying drawings Figure 6 The present application is further described in detail. The embodiment of the present application provides an intelligent catalytic oxidation incineration device for waste gas treatment, which has the effects of realizing rapid replacement of a catalyst and prolonging the service life of the catalyst.

[0035] Reference will be made to Figure 1 An intelligent catalytic oxidation incineration device for waste gas treatment includes a dry filter 1, a pretreatment assembly 2, a preheating heat exchanger 3, and a catalytic combustion assembly 4. An air inlet pipe 5 is arranged at the inlet end of the dry filter 1 in communication, and the air inlet pipe 5 is provided with an air inlet valve 6. A first conveying pipe 7 is arranged between the dry filter 1 and the pretreatment assembly 2, and the first conveying pipe 7 is provided with a first electromagnetic valve 8. A second conveying pipe 9 is arranged between the pretreatment assembly 2 and the preheating heat exchanger 3, and the second conveying pipe 9 is provided with a second electromagnetic valve 10. A third conveying pipe 11 is arranged between the preheating heat exchanger 3 and the catalytic combustion assembly 4, and the third conveying pipe 11 is provided with a third electromagnetic valve 12.

[0036] Reference will be made to Figure 2 and Figure 3The pre-treatment assembly 2 comprises an electric dust collecting plate 21, a dust collecting sleeve 22, a desulfurization cylinder 23, a spray collecting pipe 24, spray branch pipes 25, spray nozzles 26, a return pipe 27 and a circulating pump 28. The desulfurization cylinder 23 is vertically arranged, the bottom end of the desulfurization cylinder 23 is in the shape of an inverted cone, the lowest point of the bottom end of the desulfurization cylinder 23 is connected with a slag outlet pipe 13, and the slag outlet pipe 13 is provided with a slag outlet valve 14. The spray collecting pipe 24 is arranged in the desulfurization cylinder 23, and the spray branch pipes 25 are arranged in parallel and in communication with the spray collecting pipe 24. The spray nozzles 26 are arranged in communication with each of the spray branch pipes 25, and the opening end of the spray nozzles 26 is arranged downward. One end of the return pipe 27 extends into the desulfurization cylinder 23 and is connected in communication with the spray collecting pipe 24, and the other end is connected in communication with the bottom of the desulfurization cylinder 23. The circulating pump 28 is arranged in communication with the return pipe 27. The inner ring wall of the desulfurization cylinder 23 is connected with a limiting ring 15, the limiting ring 15 is arranged above the spray branch pipes 25, and an activated carbon adsorption block 16 is arranged above the limiting ring 15.

[0037] With reference to Figures 1-3 The dust collecting sleeve 22 is arranged outside the straight pipe section of the desulfurization cylinder 23, and the top end of the dust collecting sleeve 22 is connected in communication with one end of the first conveying pipe 7. The electric dust collecting plate 21 is in the shape of a cylinder, and is connected outside the dust collecting sleeve 22. The electric dust collecting plate 21 is in an electrified state during use. A spiral guide plate 40 is arranged between the dust collecting sleeve 22 and the desulfurization cylinder 23. A circular air inlet 231 is formed in the bottom of the desulfurization cylinder 23 and is arranged in communication with the dust collecting sleeve 22. A rotating circular plate 17 is rotatably connected to the inner cavity of the desulfurization cylinder 23 through a rotating hinge 18, and a connecting torsional spring 19 is arranged on the rotating hinge 18. The position of the rotating circular plate 17 corresponds to the air inlet 231, and the area of the rotating circular plate 17 is greater than the inner area of the air inlet 231. Under natural conditions, the rotating circular plate 17 is rotated to abut against the inner ring wall of the desulfurization cylinder 23 under the action of the connecting torsional spring 19. An inclined baffle 20 is fixedly connected to the inner ring wall of the desulfurization cylinder 23 and is located above the air inlet 231 and below the spray branch pipes 25. One end of the second conveying pipe 9 is connected with the top end of the desulfurization cylinder 23, and the other end is connected with the top end of the preheating heat exchanger 3.

[0038] With reference to Figure 4 and Figure 5The catalytic combustion assembly 4 comprises a catalytic combustion cylinder 41, a sliding plate 42, a support frame 43 and catalytic blocks 44. The catalytic combustion cylinder 41 comprises an upper cylinder body 411 and a lower cylinder body 412 arranged in correspondence in the vertical direction, the bottom end of the upper cylinder body 411 is arranged in an open manner, the bottom end of the lower cylinder body 412 is arranged in an open manner, the upper cylinder body 411 and the lower cylinder body 412 are connected by a support and arranged in a spaced manner. One end of the third conveying pipe 11 is in communication with the bottom end of the preheating heat exchanger 3, and the other end is in communication with the top end of the upper cylinder body 411. The sliding plate 42 is arranged in a sliding manner between the upper cylinder body 411 and the lower cylinder body 412 and is arranged in close contact with both. Two mounting openings 421 are formed in the sliding plate 42, and the bottom end of the inner ring wall of the mounting opening 421 is arranged in a circumferential direction. There is one catalytic block 44 in each mounting opening 421, the bottom end of the catalytic block 44 abuts against the lap edge 422, and the catalytic block 44 has a plurality of pores. The top surface and the bottom surface of the sliding plate 42 are provided with two sealing ring grooves 423, and the two sealing ring grooves 423 on the same side of the sliding plate 42 are arranged in correspondence with and coaxially with the two mounting openings 421. Each sealing ring groove 423 is provided with a connecting sealing ring 424. When the sliding plate 42 moves to a position corresponding to one of the mounting openings 421 and the catalytic combustion cylinder 41, the upper connecting sealing ring 424 corresponds to the edge position of the upper cylinder body 411, and the lower connecting sealing ring 424 corresponds to the edge position of the lower cylinder body 412.

[0039] Referring to Figure 4 A gas guide cone 29 is coaxially arranged in the inner cavity of the upper cylinder body 411, and the diameter of the gas guide cone 29 is smaller than the inner diameter of the upper cylinder body 411. A plurality of connecting rods 30 are connected to the surface of the gas guide cone 29 in a circumferential direction, one end of the connecting rod 30 extends out of the edge of the gas guide cone 29 and is connected to the inner ring wall of the upper cylinder body 411. A plurality of gas guide spiral plates 31 are connected to the inner wall of the upper cylinder body 411, and the gas guide spiral plates 31 are located below the gas guide cone 29. The bottom end of the lower cylinder body 412 is in communication with an exhaust pipe 32, and the exhaust pipe 32 is provided with an exhaust valve 33.

[0040] Referring to Figure 4 and Figure 5 A support frame 43 is arranged on the opposite sides of the catalytic combustion cylinder 41, one end of the support frame 43 is arranged in close contact with the lower cylinder body 412, and the other end is vertically connected to a limiting end plate 34. The length directions of the two support frames 43 are located on the same straight line, and the top surface of the support frame 43 is arranged in sliding contact with the bottom surface of the sliding plate 42. Figure 1The bottom surface of the sliding plate 42 is provided with two guide grooves 425 parallel to the length direction of the sliding plate 42, the two guide grooves 425 pass through both ends of the length direction of the sliding plate 42, and the two guide grooves 425 are located on both sides of the two mounting ports 421. The top surface of the support frame 43 is provided with two rows of guide rollers 35, and the two rows of guide rollers 35 are arranged in one-to-one correspondence with the two guide grooves 425, and the guide rollers 35 are arranged in rolling fit with the inner bottom wall of the guide grooves 425.

[0041] Referring to Figure 4 and Figure 5 , the two ends of the length direction of the sliding plate 42 are provided with a first connecting magnetic block 36, and each limiting end plate 34 is provided with a second connecting magnetic block 37 near one side of the catalytic combustion cylinder 41. The first connecting magnetic block 36 corresponds to the second connecting magnetic block 37. When one end of the length direction of the sliding plate 42 moves to abut against one of the limiting end plates 34, the first connecting magnetic block 36 and the corresponding second connecting magnetic block 37 are attached and adsorbed together, and at this time, one of the mounting ports 421 is arranged in communication with the upper cylinder body 411 and the lower cylinder body 412. The two ends of the length direction of the top surface of the sliding plate 42 are provided with a moving groove 426.

[0042] Referring to Figure 4 and Figure 5 , the top surface of the support frame 43 is provided with a containing groove 431, and the containing groove 431 is provided with an ejection block 38. The inner bottom wall of the containing groove 431 is connected with an ejection spring 39, and the top end of the ejection spring 39 is connected with the bottom end of the ejection block 38. In the natural state, the top end of the ejection block 38 extends out of the containing groove 431 under the action of the ejection spring 39. The end of the ejection block 38 close to the catalytic combustion cylinder 41 and the end close to the limiting end plate 34 are provided with an abutting inclined surface 381, and the cross-sectional area of the ejection block 38 gradually increases along the direction from top to bottom. When the sliding plate 42 moves to abut against one of the limiting end plates 34 at one end of the length direction, the position of the containing groove 431 corresponds to the position of the mounting port 421 outside the catalytic combustion cylinder 41.

[0043] Referring to Figure 6 , the outside of the dust collecting sleeve 22 is provided with a first jacket 45, the outside of the preheating heat exchanger 3 is provided with a second jacket 46, and the outside of the catalytic combustion cylinder 41 is provided with a third jacket 47. The first jacket 45, the second jacket 46 and the third jacket 47 are provided with a waste heat branch pipe 48 in communication, and the three waste heat branch pipes 48 are provided with a waste heat collector 49 in communication.

[0044] Referring to Figures 1-3In the process of treating the exhaust gas, the exhaust gas enters the dry filter 1 through the inlet pipe 5 for preliminary filtration to remove the dust with large particle size. The exhaust gas after the preliminary filtration enters the dust collecting sleeve 22 through the first conveying pipe 7, at this time, the electric dust collecting plate 21 is in the electrified state, the heavy metal particles in the exhaust gas are adsorbed on the inner ring wall of the dust collecting sleeve 22 under the action of the electric field, realizing the collection of the heavy metal particles and reducing the possibility of poisoning and deactivation of the catalytic block 44 by the heavy metal elements entering the subsequent catalytic combustion device. The spiral guide plate 40 guides the direction of the airflow, prolongs the flow path and flow time of the exhaust gas in the dust collecting sleeve 22, which helps to improve the metal dust collecting effect of the dust collecting sleeve 22. Since the dust collecting sleeve 22 is arranged outside the desulfurization cylinder 23, the heat of the flue gas in the dust collecting sleeve 22 is used to realize the heat preservation of the desulfurization cylinder 23, which helps to reduce the heat loss and temperature reduction of the flue gas in the pretreatment process and saves the energy consumption required for heating the flue gas in the subsequent operation.

[0045] With reference to Figure 2 and Figure 3 , the flue gas after the heavy metal dust removal is pushed open by the rotating disc 17 under the action of the gas pressure, and enters the desulfurization cylinder 23 through the gas inlet 231. The desulfurization cylinder 23 is filled with desulfurization solvent, and the liquid level of the desulfurization solvent is lower than the height of the gas inlet 231. The circulating pump 28 starts to spray the desulfurization solvent in the desulfurization cylinder 23 through the backflow pipe 27, the spray header 24, the spray branch pipe 25 and the spray nozzle 26, to perform desulfurization treatment on the gas entering the desulfurization cylinder 23. The solid substances generated in the desulfurization treatment are deposited at the bottom of the desulfurization cylinder 23, and the slag discharge valve 14 is opened to discharge the waste slag through the slag discharge pipe 13. The gas after the desulfurization treatment passes through the activated carbon adsorption block 16 to remove water, so as to facilitate the subsequent catalytic combustion treatment of the exhaust gas.

[0046] With reference to Figure 1 and Figure 4 , the gas in the desulfurization cylinder 23 enters the preheating heat exchanger 3 through the second conveying pipe 9 to be heated to a temperature required for catalytic oxidation. The gas after the preheating enters the upper cylinder body 411 of the catalytic combustion cylinder 41 through the third conveying pipe 11, and the airflow is divided and flows along the peripheral wall of the upper cylinder body 411 under the action of the gas guide cone cylinder 29 and the connecting rods 30. The airflow is spirally guided by the gas spiral guide plate 31, which prolongs the flow distance and residence time of the airflow, and helps to make the exhaust gas fully contact with the catalytic block 44 for reaction. The catalytic block 44 reacts with the gas to generate carbon dioxide and water, which are finally discharged through the exhaust pipe 32.

[0047] With reference to Figure 4 and Figure 5When one of the catalytic blocks 44 in the installation port 421 is deactivated after a period of use, the sliding plate 42 is pushed by moving the groove 426, and the sliding plate 42 slides between the upper barrel 411 and the lower barrel 412 under the action of the guide groove 425 and the guide roller 35. With the sliding of the sliding plate 42, one end of the sliding plate 42 is in contact with the abutting inclined surface 381 of the ejector block 38, and the ejector block 38 is pressed into the accommodating groove 431, and the elastic potential energy of the ejector spring 39 is accumulated. When one end of the sliding plate 42 moves to abut against the limiting end plate 34, the first connecting magnetic block 36 and the second connecting magnetic block 37 are attracted together, thereby fixing the sliding plate 42. At this time, the catalytic block 44 located outside the catalytic combustion barrel 41 corresponds to the position of the ejector block 38, and the ejector block 38 is extended out of the accommodating groove 431 under the action of the ejector spring 39, and the catalytic block 44 is ejected, thereby facilitating the operator to take out the deactivated catalytic block 44 from the installation port 421 and replace it. At the same time, the catalytic block 44 in the other installation port 421 corresponds to the positions of the upper barrel 411 and the lower barrel 412, thereby realizing quick replacement of the catalytic block 44. The connection of the sealing ring 424 improves the sealing between the installation port 421 and the upper barrel 411 and the lower barrel 412.

[0048] With reference to Figure 6 The third jacket 47 absorbs the energy generated during the use of the catalytic combustion furnace, and transmits the energy to the first jacket 45 and the second jacket 46 through the waste heat header 49 and the waste heat branch pipe 48, thereby reducing the waste of heat during the treatment process.

[0049] In the embodiment of the present application, the implementation principle of the intelligent catalytic oxidation incineration device for waste gas treatment is as follows: when the waste gas is treated, the waste gas enters the dry filter 1 for preliminary filtration, the waste gas after the preliminary filtration enters the dust collection sleeve 22 through the first conveying pipe 7, and the heavy metal particles are adsorbed on the dust collection sleeve 22 under the action of the electric field.

[0050] The flue gas after the heavy metal dust removal enters the desulfurization cylinder 23, and the circulating pump 28 is started to perform desulfurization treatment on the gas. The gas in the desulfurization cylinder 23 enters the preheating heat exchanger 3 to be heated, and the heated gas enters the upper barrel 411, and the catalytic block 44 catalytically combusts with the gas to generate carbon dioxide and water, which are finally discharged through the exhaust pipe 32.

[0051] When one of the catalytic blocks 44 in the installation port 421 is deactivated, the sliding plate 42 is pushed by moving the groove 426, and when one end of the sliding plate 42 moves to abut against the limiting end plate 34, the catalytic block 44 in the other installation port 421 corresponds to the positions of the upper barrel 411 and the lower barrel 412, thereby realizing quick replacement of the catalytic block 44.

[0052] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. An intelligent catalytic oxidation incineration device for exhaust gas treatment, characterized by: The utility model relates to a kind of exhaust gas treatment devices, including air intake pipe (5), dry filter (1), pre-treatment component (2), preheating heat exchanger (3) and catalytic combustion component (4), the air intake pipe (5) one end with the dry filter (1) communication, first conveying pipe (7) is arranged between the dry filter (1) and the pre-treatment component (2) communication, second conveying pipe (9) is arranged between the pre-treatment component (2) and the preheating heat exchanger (3) communication, third conveying pipe (11) is arranged between the preheating heat exchanger (3) and the catalytic combustion component (4) communication, the catalytic combustion component (4) includes catalytic combustion cylinder (41) and slip plate (42), the catalytic combustion cylinder (41) includes upper cylinder body (411) and lower cylinder body (412), the slip plate (42) is slidably arranged between the upper cylinder body (411) and the lower cylinder body (412), two installation ports (421) are formed in the slip plate (42), the bottom end of the inner ring wall of the installation port (421) is provided with a lap edge (422), one catalytic block (44) is placed in each installation port (421), the shape of the installation port (421) is correspondingly arranged with the inner diameter shape of the catalytic combustion cylinder (41), the pre-treatment component (2) includes desulfurization cylinder (23), the pre-treatment component (2) further includes dust collection sleeve (22) and electric dust collection plate (21), the dust collection sleeve (22) is sleeved on the outside of the desulfurization cylinder (23), the dust collection sleeve (22) is arranged in communication with one end of the first conveying pipe (7), the side wall of the desulfurization cylinder (23) is provided with an air inlet (231) in communication with the inner cavity of the dust collection sleeve (22), the electric dust collection plate (21) is in the form of a cylinder, the electric dust collection plate (21) is arranged outside the dust collection sleeve (22), the desulfurization cylinder (23) is provided with a spray branch pipe (25), the spray branch pipe (25) is provided with a spray head (26), one end of the spray branch pipe (25) is connected in communication with a reflux pipe (27), one end of the reflux pipe (27) is arranged in communication with the bottom of the desulfurization cylinder (23), the reflux pipe (27) is provided with a circulating pump (28), the inner ring wall of the desulfurization cylinder (23) is rotatably provided with a rotating circular plate (17) by a rotating hinge (18), the rotating circular plate (17) corresponds to the position of the air inlet (231), the area of the rotating circular plate (17) is greater than the inner area of the air inlet (231), the rotating hinge (18) is provided with a connecting torsional spring (19), under natural state, the rotating circular plate (17) is combined with the inner wall of the desulfurization cylinder (23) under the action of the connecting torsional spring (19), the inner wall of the desulfurization cylinder (23) is provided with an inclined baffle (20), the inclined baffle (20) is arranged above the rotating circular plate (17), the top surface of support frame (43) is provided with a containing groove (431), the containing groove (431) is slidably provided with an ejection block (38),The ejection block (38) is provided with an ejection spring (39) between the bottom wall in the accommodating groove (431), the top end of the ejection block (38) is stretched out of the accommodating groove (431) under the action of the ejection spring (39) in the natural state, when one end of the sliding plate (42) abuts against the limiting end plate (34), the position of the ejection block (38) corresponds to the alignment of the catalytic block (44), one end of the ejection block (38) close to the limiting end plate (34) and one end close to the catalytic combustion cylinder (41) are provided with abutting inclined surfaces (381), the cross-sectional area of the ejection block (38) expands from top to bottom, one end of the third conveying pipe (11) is communicated with the upper cylinder body (411), the upper cylinder body (411) is provided with a gas guide cone cylinder (29), a gap is left between the edge of the gas guide cone cylinder (29) and the upper cylinder body (411), a plurality of connecting rods (30) are connected between the gas guide cone cylinder (29) and the inner wall of the upper cylinder body (411), a plurality of gas guide spiral plates (31) are connected on the inner ring wall of the upper cylinder body (411), the gas guide spiral plates (31) are arranged below the gas guide cone cylinder (29), one end of the second conveying pipe (9) is communicated with the top end of the desulfurization cylinder (23).

2. The intelligent catalytic oxidation incineration device for waste gas treatment according to claim 1, characterized in that: Spiral guide plates (40) are arranged between the dust collecting sleeve (22) and the desulfurization cylinder (23), and the air inlet (231) is arranged at the bottom of the desulfurization cylinder (23).

3. The intelligent catalytic oxidation incineration device for waste gas treatment according to claim 1, characterized in that: The catalytic combustion assembly (4) further comprises support frames (43), one of which is arranged at each of the opposite ends of the catalytic combustion cylinder (41), the two support frames (43) are located on the same straight line, the top surface of the support frame (43) away from the catalytic combustion cylinder (41) is vertically provided with a limiting end plate (34), the top surface of the support frame (43) is slidingly attached to the bottom surface of the sliding plate (42), the two ends of the sliding plate (42) in the length direction are each provided with a first connecting magnetic block (36), the side of the limiting end plate (34) close to the catalytic combustion cylinder (41) is correspondingly provided with a second connecting magnetic block (37) corresponding to the first connecting magnetic block (36), when the sliding plate (42) moves to abut against one of the limiting end plates (34), one of the catalytic blocks (44) is located corresponding to the catalytic combustion cylinder (41).

4. The intelligent catalytic oxidation incineration device for waste gas treatment according to claim 1, characterized in that: The desulfurization cylinder (23) is provided with activated carbon adsorption blocks (16), and the activated carbon adsorption blocks (16) are arranged above the spray branch pipe (25).

Images