Catalytic combustion RCO waste gas treatment equipment

Abstract

The invention discloses catalytic combustion RCO waste gas treatment equipment, and relates to the technical field of waste gas treatment, the catalytic combustion RCO waste gas treatment equipment has the advantages that untreated waste gas is preheated through heat carried by treated gas, and therefore heat waste is reduced, the technical scheme is characterized in that the catalytic combustion RCO waste gas treatment equipment comprises a combustion box and a discharge box, and the combustion box and the discharge box are communicated through a preheating mechanism; an electric heating net and a placement net are arranged between the two opposite sides in the combustion box, the placement net is located above the electric heating net, a catalyst is arranged on the placement net, an exhaust pipe and an air inlet pipe are arranged at the top end of the discharge box, and a waste heat recovery mechanism used for transferring heat in treated gas to untreated waste gas is arranged in the discharge box. The exhaust pipe, the air inlet pipe and the preheating mechanism communicate with the waste heat recovery mechanism.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas treatment, and in particular to a catalytic combustion RCO waste gas treatment device. Background Art

[0002] Waste gas refers to toxic and harmful gases discharged by humans in the process of production and life. Especially chemical plants, steel plants, pharmaceutical plants, coking plants and refineries, etc., the waste gas emitted has a strong odor, seriously pollutes the environment and affects human health, so we need to treat the waste gas. The existing waste gas treatment generally uses RCO catalytic combustion waste gas treatment equipment to treat the waste gas.

[0003] Catalytic combustion refers to the combustion of combustibles under the action of catalysts. It is a combustion method that uses appropriate catalysts to decompose and oxidize combustible substances in harmful gases at a lower temperature. Compared with direct combustion, catalytic combustion has a lower temperature and more complete combustion. The catalyst used in catalytic combustion is a multi-component substance of precious metals and metal oxides with a large specific surface area. Catalytic combustion is flameless combustion, so it is suitable for occasions with high safety requirements.

[0004] However, when the existing RCO catalytic combustion exhaust gas treatment equipment is in use, it is necessary to heat the catalytic gas to achieve the catalytic regulation. However, the gas after catalytic combustion treatment carries the heat and is directly discharged, resulting in a lot of waste of heat resources. Therefore, the applicant has developed a new technical solution in the actual production process to solve the above technical problems. Summary of the invention

[0005] In view of the above-mentioned technical deficiencies, the object of the present invention is to provide a catalytic combustion RCO exhaust gas treatment device, which has the advantage of preheating untreated exhaust gas by the heat carried by the treated gas, thereby reducing heat waste.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a catalytic combustion RCO waste gas treatment device, comprising a combustion box and a discharge box, the combustion box and the discharge box are connected through a preheating mechanism, an electric heating network and a placement network are arranged between the opposite sides of the combustion box, the placement network is located above the electric heating network, and a catalyst is arranged on the placement network, an exhaust pipe and an intake pipe are arranged at the top of the discharge box, a waste heat recovery mechanism for transferring heat in the treated gas to untreated waste gas is arranged in the discharge box, and the exhaust pipe, the intake pipe and the preheating mechanism are all connected with the waste heat recovery mechanism.

[0007] By adopting the above technical solution, when in use, the exhaust gas enters the waste heat recovery mechanism in the discharge box from the intake pipe, and then enters the combustion box from the waste heat recovery mechanism through the preheating mechanism, and the exhaust gas in the combustion box is catalytically burned through the electric heating network and the catalyst, and the treated gas enters the waste heat recovery mechanism in the discharge box through the preheating mechanism, and then is discharged from the exhaust pipe; When the gas treated in the waste heat recovery mechanism is discharged from the exhaust pipe, the heat carried by the gas will be dissipated through the waste heat recovery mechanism to the untreated waste gas passing through the waste heat recovery mechanism. At this time, the waste gas can be preheated once, and the gas treated in the waste heat recovery mechanism and the untreated waste gas will not be mixed together; When the treated gas enters the waste heat recovery mechanism in the discharge box through the preheating mechanism, the heat carried by the gas will be dissipated through the preheating mechanism to the untreated exhaust gas passing through the preheating mechanism. At this time, the exhaust gas can be preheated for the second time, and the treated gas and the untreated exhaust gas in the preheating mechanism will not be mixed together. The exhaust gas that has undergone secondary preheating enters the combustion box from the preheating mechanism, and the exhaust gas in the combustion box is catalytically burned through the electric heating network and the catalyst. Through the above process, the heat carried by the treated gas can be used to preheat the untreated exhaust gas, thereby reducing heat waste.

[0008] Preferably, the preheating mechanism includes a U-shaped baffle arranged in the combustion box, and the baffle wall is hollow, a sleeve is provided on the upper side of the baffle close to the discharge box, and the end of the sleeve away from the baffle passes through the combustion box and is connected to the discharge box, the sleeve is connected to the hollow wall of the baffle, a center tube is provided between the combustion box and the discharge box, and the end of the center tube close to the combustion box passes through the baffle and is located on the inner side of the baffle, the electric heating network and the placement network are both arranged between the opposite sides of the baffle and are both located below the sleeve, a mounting plate is horizontally provided between the opposite sides of the baffle, and the mounting plate is located below the electric heating network, an open groove is provided on the mounting plate, and a fan is provided on the end of the mounting plate close to the open groove, an air inlet connected to the hollow wall of the baffle is provided on the side of the baffle away from the sleeve, and the air inlet is located below the mounting plate, and the center tube and the sleeve are both connected to the waste heat recovery mechanism in the discharge box.

[0009] Preferably, the waste heat recovery mechanism includes two partitions vertically arranged in the discharge box, and the two partitions divide the discharge box from left to right into a filtration area, a water filling area, and an air intake area, the air intake pipe is connected to the air intake area, and the exhaust pipe is connected to the water filling area. An inverted L-shaped air guide pipe connected to the central pipe is provided in the discharge box, and one end of the air guide pipe away from the central pipe is vertically downward in the water in the water filling area. An air pump located in the water filling area is provided on the air guide pipe, and the air pump is located above the water surface in the water filling area. The filtration area is connected to the air intake area through a plurality of heat conducting pipes, and each heat conducting pipe is arranged between the two partitions. At this time, each heat conducting pipe is located in the water in the water filling area. A filter element for filtering the exhaust gas entering the filtration area through the heat conducting pipe is provided on the discharge box, and the sleeve is connected to the filtration area.

[0010] Preferably, the filter element includes a transition box arranged on the front and rear sides of the discharge box, the front and rear sides of the discharge box are provided with a connecting groove connected to the transition box, and the connecting groove is connected to the filter area, one side of the two transition boxes is provided with a pick-up and release groove, and the two transition boxes are detachably connected with a cover plate for closing the pick-up and release groove, a slide plate is horizontally slidably connected to the partition on one side of the filter area, two mounting grooves are provided on the side of the slide plate close to the partition, and the two mounting grooves are distributed front and back, and filter plates are detachably connected in the two mounting grooves, one of the mounting grooves corresponds to each heat conducting pipe, the front end of the slide plate passes through the connecting groove and is located in the transition box on the front side of the discharge box, at this time, the other mounting groove on the slide plate is located in the transition box, the slide plate is provided with a closing member for closing one of the connecting grooves on the discharge box, the discharge box is provided with a pushing member for pushing the slide plate to move horizontally on the partition, and the two transition boxes are provided with an air guide member for blowing the exhaust gas in the transition box back to the filter area.

[0011] Preferably, the closing member includes a U-shaped closing plate arranged on a slide plate and a sealing layer arranged on the front and rear sides of the closing plate, the slide plate is located on the inner side of the closing plate and is fixedly connected to the closing plate, the sealing layer located on the front side of the closing plate abuts against the inner wall of the discharge box, a first sealing gasket is provided on the groove wall on the side close to the partition plate of the two connecting grooves, the side of the slide plate close to the partition plate is in contact with the first sealing gasket, the pushing member includes a push plate arranged on the closing plate, the discharge box is provided with an electric cylinder located in one of the transition boxes, and one end of the piston rod of the electric cylinder passes through the box wall of the discharge box and is fixedly connected to the push plate.

[0012] Preferably, the air guide member includes a return pipe arranged on the side of the transition box away from the loading and unloading groove, and the end of the return pipe away from the transition box is connected with the filtering area and extends into the filtering area, and a sealing member for automatically closing the return pipe opening is provided at the pipe opening of the return pipe extending into the filtering area. The top ends of the two transition boxes are provided with connecting pipes, and the ends of the connecting pipes away from the transition box pass through the box wall of the discharge box and are connected with the air guide pipe. The end of the connecting pipe connected to the air guide pipe is located above the water surface in the water filling area, and a solenoid valve is provided on the connecting pipe.

[0013] Preferably, the sealing member includes a ring and a plurality of connecting columns arranged on one side of the ring, and the connecting columns are evenly distributed along the circumference of the ring, and the ends of the connecting columns away from the ring are connected through a closing disk, and the closing disk is coaxial with the ring, and a second sealing gasket is provided on the side of the closing disk close to the ring, and the ring is sleeved on the return pipe, and the second sealing gasket on the closing disk contacts the pipe mouth of the return pipe to close the pipe mouth of the return pipe, and a tension spring is provided on the side of the ring away from the closing disk, and the end of the tension spring away from the ring is connected to the discharge box.

[0014] Preferably, a plurality of heat sinks are provided on the outer wall of the central tube, and each heat sink is located inside the sleeve.

[0015] Preferably, each of the heat conducting pipes is arranged obliquely, and the lowest end of the heat conducting pipe is close to the air inlet area.

[0016] Preferably, an insulation layer is provided on the outer wall of the sleeve and the top of the outer wall of the combustion box, a drain pipe with a valve is provided on the discharge box, and the drain pipe is connected to the water filling area, an inspection port is provided on the front side of the combustion box, and a box plate for closing the inspection port is detachably connected to the combustion box.

[0017] The beneficial effects of the present invention are as follows: when in use, the exhaust gas enters the waste heat recovery mechanism in the discharge box from the intake pipe, and then enters the combustion box from the waste heat recovery mechanism through the preheating mechanism, and the exhaust gas in the combustion box is catalytically combusted through the electric heating network and the catalyst, and the treated gas enters the waste heat recovery mechanism in the discharge box through the preheating mechanism, and then is discharged from the exhaust pipe; When the gas treated in the waste heat recovery mechanism is discharged from the exhaust pipe, the heat carried by the gas will be dissipated through the waste heat recovery mechanism to the untreated waste gas passing through the waste heat recovery mechanism. At this time, the waste gas can be preheated once, and the gas treated in the waste heat recovery mechanism and the untreated waste gas will not be mixed together; When the treated gas enters the waste heat recovery mechanism in the discharge box through the preheating mechanism, the heat carried by the gas will be dissipated through the preheating mechanism to the untreated exhaust gas passing through the preheating mechanism. At this time, the exhaust gas can be preheated for the second time, and the treated gas and the untreated exhaust gas in the preheating mechanism will not be mixed together. The exhaust gas that has undergone secondary preheating enters the combustion box from the preheating mechanism, and the exhaust gas in the combustion box is catalytically burned through the electric heating network and the catalyst. Through the above process, the heat carried by the treated gas can be used to preheat the untreated exhaust gas, thereby reducing heat waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a structural schematic diagram of this embodiment; Figure 2 This is a schematic diagram of the structure of the partition in this embodiment; Figure 3 This is a schematic diagram of the structure of the heat sink of this embodiment; Figure 4 This is a schematic diagram of the structure of the reflux pipe in this embodiment; Figure 5 This is a schematic diagram of the structure of the connecting pipe in this embodiment; Figure 6 This is a schematic diagram of the structure of the closing plate of this embodiment; Figure 7 for Figure 4 A schematic diagram of the structure of the middle A part; Figure 8 for Figure 4 Schematic diagram of the enlarged structure of part B in the middle.

[0020] Description of reference numerals: In the figure: 1, combustion box; 2, discharge box; 3, electric heating network; 4, placement network; 5, catalyst; 6, exhaust pipe; 7, air intake pipe; 8, baffle; 9, sleeve; 10, center pipe; 12, mounting plate; 13, opening slot; 14, fan; 15, air inlet; 16, partition; 17, filter area; 18, water filling area; 19, air intake area; 20, air guide pipe; 21, air pump; 22, heat pipe; 23, transition box; 24, connecting slot; 25, take 1. Placement groove; 26. Cover plate; 27. Slide plate; 28. Installation groove; 29. ​​Filter plate; 30. Closing plate; 31. Sealing layer; 32. First sealing gasket; 33. Push plate; 34. Electric cylinder; 35. Return pipe; 36. Connecting pipe; 37. Solenoid valve; 38. Ring; 39. Connecting column; 40. Closing disk; 41. Second sealing gasket; 42. Tension spring; 43. Heat sink; 44. Insulation layer; 45. Drain pipe; 46. Inspection port; 47. Box plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] A catalytic combustion RCO waste gas treatment device, such as Figure 1 and Figure 2 , including a combustion box 1 and an emission box 2. The combustion box 1 and the emission box 2 are connected through a preheating mechanism. An electric heating network 3 and a placement network 4 are provided between the opposite sides of the combustion box 1. The placement network 4 is located above the electric heating network 3, and a catalyst 5 is provided on the placement network 4. An exhaust pipe 6 and an intake pipe 7 are provided at the top of the emission box 2. A waste heat recovery mechanism for transferring heat in the treated gas to the untreated exhaust gas is provided in the emission box 2. The exhaust pipe 6, the intake pipe 7 and the preheating mechanism are all connected to the waste heat recovery mechanism.

[0023] like Figure 1 and Figure 2 When in use, the exhaust gas enters the waste heat recovery mechanism in the discharge box 2 from the intake pipe 7, and then enters the combustion box 1 from the waste heat recovery mechanism through the preheating mechanism. The exhaust gas in the combustion box 1 is catalytically burned through the electric heating network 3 and the catalyst 5. The treated gas enters the waste heat recovery mechanism in the discharge box 2 through the preheating mechanism, and then is discharged from the exhaust pipe 6. When the gas treated in the waste heat recovery mechanism is discharged from the exhaust pipe 6, the heat carried by the gas will be dissipated through the waste heat recovery mechanism to the untreated waste gas passing through the waste heat recovery mechanism. At this time, the waste gas can be preheated once, and the gas treated in the waste heat recovery mechanism and the untreated waste gas will not be mixed together; When the treated gas enters the waste heat recovery mechanism in the discharge box 2 through the preheating mechanism, the heat carried by the gas will be dissipated through the preheating mechanism to the untreated exhaust gas that has passed through the preheating mechanism. At this time, the exhaust gas can be preheated for the second time, and the treated gas and the untreated exhaust gas in the preheating mechanism will not be mixed together. The exhaust gas that has undergone secondary preheating enters the combustion box 1 from the preheating mechanism, and the exhaust gas in the combustion box 1 is catalytically combusted through the electric heating network 3 and the catalyst 5. Through the above process, the heat carried by the treated gas can be used to preheat the untreated exhaust gas, thereby reducing heat waste.

[0024] like Figure 1 and Figure 2 The preheating mechanism includes a U-shaped baffle 8 arranged in the combustion box 1, and the wall of the baffle 8 is hollow. A sleeve 9 is arranged above the side of the baffle 8 close to the discharge box 2, and the end of the sleeve 9 away from the baffle 8 passes through the combustion box 1 and is connected to the discharge box 2. The sleeve 9 is connected to the hollow wall of the baffle 8. A central tube 10 is arranged between the combustion box 1 and the discharge box 2, and the end of the central tube 10 close to the combustion box 1 passes through the baffle 8 and is located inside the baffle 8. The electric heating network 3 and the placement network 4 are both arranged on the opposite side of the baffle 8. A mounting plate 12 is horizontally provided between the two sides and below the sleeve 9, and the mounting plate 12 is located below the electric heating network 3. An opening groove 13 is provided on the mounting plate 12, and a fan 14 is provided on one end of the mounting plate 12 close to the opening groove 13. An air inlet 15 connected to the hollow wall of the baffle 8 is provided on the side of the baffle 8 away from the sleeve 9, and the air inlet 15 is located below the mounting plate 12, and the central pipe 10 and the sleeve 9 are both connected to the waste heat recovery mechanism in the discharge box 2.

[0025] like Figure 1 and Figure 2 , the untreated exhaust gas in the waste heat recovery mechanism enters the baffle 8 through the sleeve 9, and then is discharged from the air inlet 15 on the baffle 8 to the bottom of the mounting plate 12 in the combustion box 1, and then the fan 14 is turned on to blow the exhaust gas into the baffle 8 above the mounting plate 12. After the exhaust gas is catalytically burned by the electric heating network 3 and the catalyst 5, the gas enters the waste heat recovery mechanism in the discharge box 2 through the central tube 10, and then is discharged from the exhaust pipe 6. When the treated gas passes through the central tube 10, the heat carried in the gas will be dissipated from the tube wall of the central tube 10 to the sleeve 9 to preheat the exhaust gas passing through the sleeve 9. By setting the central tube 10 in the sleeve 9, the treated gas and the untreated exhaust gas in the sleeve 9 will not be mixed together; In the process that the exhaust gas enters the baffle 8 from the sleeve 9 and then is discharged into the combustion box 1 from the air inlet 15 on the baffle 8, because the electric heating network 3 and the placement network 4 are arranged between the opposite sides of the baffle 8, the U-shaped baffle 8 with hollow board wall can reduce the loss of heat in the combustion box 1, which is simple and convenient to use.

[0026] like Figure 2 The waste heat recovery mechanism includes two partitions 16 vertically arranged in the discharge box 2, and the two partitions 16 divide the discharge box 2 into a filtering area 17, a water area 18, and an air intake area 19 from left to right. The air intake pipe 7 is connected to the air intake area 19, and the exhaust pipe 6 is connected to the water area 18. An inverted L-shaped air guide pipe 20 connected to the central pipe 10 is provided in the discharge box 2, and one end of the air guide pipe 20 away from the central pipe 10 is vertically downward in the water in the water area 18. The air guide pipe An air pump 21 is provided on 20 and is located in the water filling area 18, and the air pump 21 is located above the water surface in the water filling area 18. The filter area 17 and the air intake area 19 are connected through a plurality of heat pipes 22, and each heat pipe 22 is arranged between two partitions 16. At this time, each heat pipe 22 is located in the water in the water filling area 18. A filter element for filtering the exhaust gas entering the filter area 17 through the heat pipe 22 is provided on the discharge box 2, and the sleeve 9 is connected to the filter area 17.

[0027] like Figure 2 , the air intake pipe 7 discharges the exhaust gas into the air intake area 19, and then the exhaust gas enters the filter area 17 through the heat conducting pipe 22. After being filtered by the filter element, the exhaust gas in the filter area 17 enters the sleeve 9, and then enters the baffle 8 from the sleeve 9. After the exhaust gas in the combustion box 1 is catalytically burned by the electric heating network 3 and the catalyst 5, the air pump 21 is turned on to allow the treated gas to enter the air guide pipe 20 from the central pipe 10, and then the air guide pipe 20 blows the gas into the water in the water filling area 18. At this time, the residual heat in the gas will heat the water in the water filling area 18. At this time, because the heat conducting pipe 22 is located in the water in the water filling area 18, in the process of the exhaust gas entering the filter area 17 from the air intake area 19 through the heat conducting pipe 22, the heat in the water can be dissipated to the exhaust gas passing through the heat conducting pipe 22 through the heat conducting pipe 22, thereby completing the preheating of the exhaust gas. The outer wall of the heat conducting pipe 22 is provided with a heat conducting sheet (not shown in the figure) located in the water, which is simple and convenient to use.

[0028] like Figure 1 and Figure 4 and Figure 6 and Figure 7The filter element includes a transition box 23 arranged on the front and rear sides of the discharge box 2. The front and rear sides of the discharge box 2 are both provided with a connecting groove 24 connected to the transition box 23, and the connecting groove 24 is connected to the filter area 17. One side of the two transition boxes 23 is provided with a pick-up and drop groove 25. The two transition boxes 23 are detachably connected with a cover plate 26 for closing the pick-up and drop groove 25. A slide plate 27 is horizontally slidably connected to the partition 16 on one side of the filter area 17. The slide plate 27 is provided with two installation grooves 28 on one side close to the partition 16, and the two installation grooves 28 are distributed front and back. Filter plates 29 are detachably connected in the grooves 28, one of the mounting grooves 28 corresponds to each heat pipe 22, the front end of the slide plate 27 passes through the connecting groove 24 and is located in the transition box 23 on the front side of the discharge box 2, and the other mounting groove 28 on the slide plate 27 is located in the transition box 23. The slide plate 27 is provided with a closing member for closing one of the connecting grooves 24, and the discharge box 2 is provided with a pushing member for pushing the slide plate 27 to move horizontally on the partition 16, and both transition boxes 23 are provided with air guides for blowing the exhaust gas in the transition box 23 back to the filter area 17.

[0029] Figure 4 and Figure 6 and Figure 7 When the exhaust gas enters the filter area 17 through the heat pipe 22, the particulate matter in the exhaust gas can be filtered through the filter plate 29 in the installation groove 28 corresponding to the heat pipe 22. When the filter plate 29 corresponding to the heat pipe 22 needs to be replaced, it is only necessary to push the slide plate 27 to move horizontally backward on the partition 16 through the pusher until another filter plate 29 corresponds to the heat pipe 22. At this time, the filter plate 29 that needs to be replaced will follow the slide plate 27 into the transition box 23 located at the rear side of the discharge box 2. At this time, the closing member will close the connecting groove 24 at the rear side of the discharge box 2, and then the exhaust gas in the transition box 23 at the rear side of the discharge box 2 will be blown back to the filter area 17 through the air guide member, and then the cover plate 26 will be removed to remove the filter plate 29 that needs to be replaced from the access groove 25 for replacement. There is no need to stop the injection of exhaust gas during the whole process. The exhaust gas in the transition box 23 is blown back to the filter area 17 through the air guide member before removing the cover plate 26, which can reduce the occurrence of exhaust gas escaping from the access groove 25 on the transition box 23 when the cover plate 26 is removed; One of the filter plates 29 is located in the transition box 23 at the front side of the discharge box 2, and the other filter plate 29 corresponds to the heat conducting pipe 22 (such as Figure 4 ), the closing piece closes the connecting groove 24 at the front side of the discharge box 2. When the slide plate 27 is moved so that one of the filter plates 29 corresponds to the heat pipe 22 and the other filter plate 29 is located in the transition box 23 at the rear side of the discharge box 2, the closing piece closes the connecting groove 24 at the rear side of the discharge box 2. It is simple and convenient to use.

[0030] like Figure 4 and Figure 6 and Figure 7 The closing member includes a U-shaped closing plate 30 arranged on the slide plate 27 and a sealing layer 31 arranged on the front and rear sides of the closing plate 30. The slide plate 27 is located on the inner side of the closing plate 30 and is fixedly connected to the closing plate 30. The sealing layer 31 located on the front side of the closing plate 30 contacts the inner wall of the discharge box 2. A first sealing gasket 32 ​​is provided on the groove wall of the two connecting grooves 24 close to the partition 16. The side of the slide plate 27 close to the partition 16 contacts the first sealing gasket 32. The pushing member includes a push plate 33 arranged on the closing plate 30. The discharge box 2 is provided with an electric cylinder 34 located in one of the transition boxes 23, and one end of the piston rod of the electric cylinder 34 passes through the box wall of the discharge box 2 and is fixedly connected to the push plate 33.

[0031] like Figure 4 and Figure 6 and Figure 7 When it is necessary to push the slide plate 27 to move horizontally on the partition 16, it is only necessary to open the electric cylinder 34. At this time, the piston rod of the electric cylinder 34 will push the push plate 33 to drive the closing plate 30 to move horizontally. At this time, the closing plate 30 will drive the slide plate 27 to move horizontally back and forth on the partition 16. When one of the filter plates 29 is located in the transition box 23 on the front side of the discharge box 2, and the other filter plate 29 corresponds to the heat conduction pipe 22, the sealing layer 31 on the front side of the closing plate 30 will conflict with the inner wall of the discharge box 2. At this time, the connecting groove 24 on the front side of the discharge box 2 can be closed by the closing plate 30 and the sealing layer 31 on the front side of the closing plate 30 and the first sealing gasket 32 ​​on the connecting groove 24 on the front side of the discharge box 2; When the slide plate 27 moves so that one of the filter plates 29 corresponds to the heat pipe 22 and the other filter plate 29 is located in the transition box 23 on the rear side of the discharge box 2, the sealing layer 31 on the rear side of the closing plate 30 will come into contact with the inner wall of the discharge box 2. At this time, the connecting groove 24 on the rear side of the discharge box 2 can be closed by the closing plate 30 and the sealing layer 31 on the rear side of the closing plate 30 and the first sealing gasket 32 ​​on the connecting groove 24 on the rear side of the discharge box 2, which is simple and convenient to use.

[0032] like Figure 1 and Figure 4 and Figure 5 and Figure 8The air guide member includes a return pipe 35 arranged on the side of the transition box 23 away from the pick-up and release groove 25, and the end of the return pipe 35 away from the transition box 23 is connected to the filter area 17 and extends into the filter area 17. A plugging member for automatically closing the return pipe 35 is provided at the pipe opening of the return pipe 35 extending into the filter area 17. The tops of the two transition boxes 23 are both provided with a connecting pipe 36, and the end of the connecting pipe 36 away from the transition box 23 passes through the box wall of the discharge box 2 and is connected to the air guide pipe 20. The end of the connecting pipe 36 connected to the air guide pipe 20 is located above the water surface in the water filling area 18. The connecting pipe 36 is provided with a solenoid valve 37. The plugging member includes The collar 38 and a plurality of connecting posts 39 are arranged on one side of the collar 38, and each connecting post 39 is evenly distributed along the circumference of the collar 38, and one end of each connecting post 39 away from the collar 38 is connected through a closing disk 40, and the closing disk 40 is coaxial with the collar 38, and a second sealing gasket 41 is provided on the side of the closing disk 40 close to the collar 38, and the collar 38 is sleeved on the return pipe 35, and the second sealing gasket 41 on the closing disk 40 contacts the pipe mouth of the return pipe 35 to close the pipe mouth of the return pipe 35, and a tension spring 42 is provided on the side of the collar 38 away from the closing disk 40, and the end of the tension spring 42 away from the collar 38 is connected to the discharge box 2.

[0033] like Figure 1 and Figure 4 and Figure 5 and Figure 8 When the closure member closes the connecting groove 24 and then the exhaust gas in the transition box 23 needs to be blown back to the filter area 17, it is only necessary to open the solenoid valve 37 on the connecting pipe 36. At this time, the treated gas in the air guide pipe 20 will enter the transition box 23 from the connecting pipe 36, and the untreated exhaust gas in the transition box 23 will be blown into the filter area 17 from the return pipe 35, completing the replacement of the exhaust gas in the transition box 23; When the treated gas in the air duct 20 is blown into the transition box 23 from the connecting pipe 36, the air pressure in the transition box 23 will increase, pushing the closing disk 40 and the second sealing gasket 41 away from the pipe mouth of the return pipe 35. At this time, the tension spring 42 is stretched, and the untreated exhaust gas in the transition box 23 will be blown back to the filter area 17 from the return pipe 35. When the exhaust gas in the transition box 23 is replaced, the solenoid valve 37 is closed. At this time, the stretched tension spring 42 will retract, thereby driving the ring 38 to move. At this time, the ring 38 will drive the closing disk 40 to approach the pipe mouth of the return pipe 35 through the connecting column 39 until the second sealing gasket 41 on the closing disk 40 conflicts with the pipe mouth of the return pipe 35. At this time, the pipe mouth of the return pipe 35 can be automatically closed, which is simple and convenient to use.

[0034] like Figure 3A plurality of heat sinks 43 are provided on the outer wall of the central tube 10, and each heat sink 43 is located in the sleeve 9. The purpose of this arrangement is that the heat sink 43 can facilitate the central tube 10 to dissipate the heat carried in the treated gas to the exhaust gas in the sleeve 9, which is simple and convenient to use.

[0035] like Figure 2 Each heat pipe 22 is arranged at an angle, and the lowest end of the heat pipe 22 is close to the air inlet area 19. The purpose of this arrangement is to increase the residence time of the exhaust gas in the heat pipe 22 by arranging the heat pipe 22 at an angle, thereby facilitating the heat pipe 22 to dissipate the heat in the water into the exhaust gas.

[0036] like Figure 1 and Figure 3 An insulation layer 44 is provided on the outer wall of the sleeve 9 and the top of the outer wall of the combustion box 1. A drain pipe 45 with a valve is provided on the discharge box 2, and the drain pipe 45 is connected to the water filling area 18. An inspection port 46 is provided on the front side of the combustion box 1. A box plate 47 for closing the inspection port 46 is detachably connected to the combustion box 1. The purpose of this arrangement is to reduce the loss and waste of heat in the combustion box 1 through the insulation layer 44, thereby reducing energy waste. The inspection port 46 corresponds to the opening of the baffle 8, and the electric heating network 3 in the combustion box 1 can be easily maintained and repaired through the inspection port 46.

[0037] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A catalytic combustion RCO waste gas treatment equipment, characterized in that: The invention comprises a combustion box (1) and an emission box (2), wherein the combustion box (1) and the emission box (2) are connected via a preheating mechanism, an electric heating network (3) and a placement network (4) are provided between opposite sides of the combustion box (1), the placement network (4) is located above the electric heating network (3), and a catalyst (5) is provided on the placement network (4), an exhaust pipe (6) and an intake pipe (7) are provided at the top of the emission box (2), a waste heat recovery mechanism for transferring heat in treated gas to untreated exhaust gas is provided in the emission box (2), and the exhaust pipe (6) and the intake pipe (7) are connected to the preheating mechanism and the waste heat recovery mechanism.

2. A catalytic combustion RCO waste gas treatment device as claimed in claim 1, characterized in that: The preheating mechanism comprises a U-shaped baffle (8) arranged in a combustion box (1), and the wall of the baffle (8) is hollow. A sleeve (9) is arranged above a side of the baffle (8) close to the discharge box (2), and the end of the sleeve (9) away from the baffle (8) passes through the combustion box (1) and is connected to the discharge box (2). The sleeve (9) is connected to the hollow wall of the baffle (8). A central tube (10) is arranged between the combustion box (1) and the discharge box (2), and the end of the central tube (10) close to the combustion box (1) passes through the baffle (8) and is located inside the baffle (8). The electric heating network (3) and the placement network (4) are both arranged on the baffle (8). A mounting plate (12) is horizontally arranged between the two opposite sides of the baffle (8), and the mounting plate (12) is located below the electric heating network (3). An opening groove (13) is provided on the mounting plate (12), and a fan (14) is provided on one end of the mounting plate (12) close to the opening groove (13). An air inlet (15) connected to the hollow wall of the baffle (8) is provided on the side of the baffle (8) away from the sleeve (9), and the air inlet (15) is located below the mounting plate (12). The central pipe (10) and the sleeve (9) are both connected to the waste heat recovery mechanism in the discharge box (2).

3. A catalytic combustion RCO waste gas treatment device as claimed in claim 2, characterized in that: The waste heat recovery mechanism comprises two partitions (16) vertically arranged in the discharge box (2), and the two partitions (16) divide the discharge box (2) into a filtering area (17), a water filling area (18), and an air intake area (19) from left to right, the air intake pipe (7) is connected to the air intake area (19), the exhaust pipe (6) is connected to the water filling area (18), an inverted L-shaped air guide pipe (20) connected to the central pipe (10) is provided in the discharge box (2), and one end of the air guide pipe (20) away from the central pipe (10) is vertically downwardly located in the water in the water filling area (18), and the air guide pipe (20) is connected to the central pipe (10). The air pipe (20) is provided with an air pump (21) located in the water filling area (18), and the air pump (21) is located above the water surface in the water filling area (18). The filter area (17) and the air intake area (19) are connected through a plurality of heat conducting pipes (22), and each heat conducting pipe (22) is arranged between two partitions (16). At this time, each heat conducting pipe (22) is located in the water in the water filling area (18). The discharge box (2) is provided with a filter element for filtering the exhaust gas entering the filter area (17) through the heat conducting pipe (22), and the sleeve (9) is connected to the filter area (17).

4. A catalytic combustion RCO waste gas treatment device as claimed in claim 3, characterized in that: The filter element comprises a transition box (23) arranged on the front and rear sides of the discharge box (2); the front and rear sides of the discharge box (2) are both provided with a connecting groove (24) connected to the transition box (23), and the connecting groove (24) is connected to the filter area (17); one side of the two transition boxes (23) is provided with a pick-up and drop groove (25); the two transition boxes (23) are both detachably connected with a cover plate (26) for closing the pick-up and drop groove (25); a slide plate (27) is horizontally slidably connected to the partition plate (16) on one side of the filter area (17); two installation grooves (28) are provided on the side of the slide plate (27) close to the partition plate (16), and the two installation grooves (28) are distributed front and back, and the two installation grooves (28) are arranged on the filter area (17); ) are detachably connected with a filter plate (29), one of the installation grooves (28) corresponds to each heat conducting pipe (22), the front end of the slide plate (27) passes through the connecting groove (24) and is located in the transition box (23) on the front side of the discharge box (2), at this time, the other installation groove (28) on the slide plate (27) is located in the transition box (23), the slide plate (27) is provided with a closing member for closing one of the connecting grooves (24) on the discharge box (2), the discharge box (2) is provided with a pushing member for pushing the slide plate (27) to move horizontally on the partition (16), and the two transition boxes (23) are provided with an air guide member for blowing the exhaust gas in the transition box (23) back to the filter area (17).

5. A catalytic combustion RCO waste gas treatment device as claimed in claim 4, characterized in that: The closing member comprises a U-shaped closing plate (30) arranged on a slide plate (27) and sealing layers (31) arranged on the front and rear sides of the closing plate (30); the slide plate (27) is located on the inner side of the closing plate (30) and is fixedly connected to the closing plate (30); the sealing layer (31) located on the front side of the closing plate (30) contacts the inner wall of the discharge box (2); a first sealing gasket (32) is provided on the groove wall of the two connecting grooves (24) on the side close to the partition (16); the side of the slide plate (27) close to the partition (16) contacts the first sealing gasket (32); the pushing member comprises a push plate (33) arranged on the closing plate (30); the discharge box (2) is provided with an electric cylinder (34) located in one of the transition boxes (23); and one end of the piston rod of the electric cylinder (34) passes through the box wall of the discharge box (2) and is fixedly connected to the push plate (33).

6. A catalytic combustion RCO waste gas treatment device as claimed in claim 4, characterized in that: The air guide member comprises a return pipe (35) arranged on a side of the transition box (23) away from the loading and unloading groove (25), and one end of the return pipe (35) away from the transition box (23) is connected to the filter area (17) and extends into the filter area (17), and a blocking member for automatically closing the return pipe (35) opening is provided at the pipe opening of the return pipe (35) extending into the filter area (17), and the top ends of the two transition boxes (23) are each provided with a connecting pipe (36), and one end of the connecting pipe (36) away from the transition box (23) passes through the box wall of the discharge box (2) and is both connected to the air guide pipe (20), and one end of the connecting pipe (36) connected to the air guide pipe (20) is located above the water surface in the water filling area (18), and a solenoid valve (37) is provided on the connecting pipe (36).

7. A catalytic combustion RCO waste gas treatment device as claimed in claim 6, characterized in that: The blocking member comprises a collar (38) and a plurality of connecting columns (39) arranged on one side of the collar (38), and the connecting columns (39) are evenly distributed along the circumference of the collar (38); one end of each connecting column (39) away from the collar (38) is connected via a closing disk (40), and the closing disk (40) is coaxial with the collar (38); a second sealing gasket (41) is provided on a side of the closing disk (40) close to the collar (38); the collar (38) is sleeved on the return pipe (35), and the second sealing gasket (41) on the closing disk (40) contacts the pipe opening of the return pipe (35) to seal the pipe opening of the return pipe (35); a tension spring (42) is provided on a side of the collar (38) away from the closing disk (40), and the end of the tension spring (42) away from the collar (38) is connected to the discharge box (2).

8. A catalytic combustion RCO waste gas treatment device as claimed in claim 2, characterized in that: A plurality of heat sinks (43) are provided on the outer wall of the central tube (10), and each heat sink (43) is located inside the sleeve (9).

9. A catalytic combustion RCO waste gas treatment device as claimed in claim 3, characterized in that: Each of the heat conducting pipes (22) is arranged at an angle, and the lowest end of the heat conducting pipe (22) is close to the air inlet area (19).

10. A catalytic combustion RCO waste gas treatment device as claimed in claim 2, characterized in that: An insulation layer (44) is provided on the outer wall of the sleeve (9) and the top of the outer wall of the combustion box (1); a drain pipe (45) with a valve is provided on the discharge box (2), and the drain pipe (45) is connected to the water filling area (18); an inspection port (46) is provided on the front side of the combustion box (1); and a box plate (47) for closing the inspection port (46) is detachably connected to the combustion box (1).

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