An integrated adsorption, dust removal and denitrification treatment device for waste incineration power plants

Abstract

The present invention relates to an integrated adsorption, dust removal and denitration treatment device for a waste incineration power plant, comprising an air intake pipe, an exhaust pipe and a treatment box. A first adsorption chamber, a second adsorption chamber and a dust removal and denitration chamber are sequentially arranged inside the treatment box. A spray head is arranged inside the first adsorption chamber, an activated carbon layer is filled inside the second adsorption chamber, and a plurality of ceramic filter tubes are evenly spaced inside the dust removal and denitration chamber. The air intake pipe is connected to the first adsorption chamber, and the exhaust pipe is arranged at the top of the treatment box and is respectively connected to each ceramic filter tube. Exhaust gas enters the first adsorption chamber through the air intake pipe, and water mist formed by spraying absorbs smoke and dust in the exhaust gas. The exhaust gas then passes through the activated carbon layer for re-adsorption and finally enters the dust removal and denitration chamber. The exhaust gas passes through the ceramic filter tubes to complete dust removal and denitration, and removes acidic gases in the exhaust gas. The integrated equipment reduces operating costs.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment, and in particular to an integrated adsorption, dust removal and denitrification treatment device for a waste incineration power plant. Background Art

[0002] The prior art (CN214598199U) discloses a highly efficient smoke dust purification device for incineration tail gas in a garbage power plant, including an air intake pipe, a connected air box fixedly installed at the bottom end of the air intake pipe, a first pH sensor fixedly installed on one side of the air intake pipe, three groups of diversion pipes evenly fixedly installed on the lower side wall of the air box, a rotating shaft rotatably installed at the center of the lower side wall of the air box, a fan-shaped plate fixedly installed on the upper side wall of the rotating shaft, and a stepping motor fixedly installed on the end of the rotating shaft away from the fan-shaped plate; by arranging an air distribution box, an aeration pipe and an air hole, the exhaust gas discharged into the air distribution box can be discharged into the water contained in the inner cavity of the treatment box through the aeration pipe and the air hole, and fully contacted with the water, so that the water absorbs the smoke dust in the exhaust gas, avoiding the problem that the traditional bag dust removal method not only has poor effect, but also often needs to clean and replace the bag.

[0003] However, the treatment effect of the acid gas in the existing technology is relatively poor, and flue gas mixed with a large amount of acid gas is easily discharged, causing environmental pollution. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated adsorption, dust removal and denitrification treatment device for waste incineration power plants, aiming to solve the technical problems in the existing technology of poor treatment effect on acidic gases, easy discharge of flue gas mixed with a large amount of acidic gases, and causing environmental pollution.

[0005] To achieve the above objectives, the present invention provides an integrated adsorption, dust removal, and denitration treatment device for a waste incineration power plant, comprising an air intake pipe, an exhaust pipe, and a treatment box. A first adsorption chamber, a second adsorption chamber, and a dust removal and denitration chamber are sequentially arranged inside the treatment box. A spray head is provided inside the first adsorption chamber, and an activated carbon layer is filled inside the second adsorption chamber. A plurality of ceramic filter tubes are evenly spaced inside the dust removal and denitration chamber. The air intake pipe is connected to the first adsorption chamber, and the exhaust pipe is provided at the top of the treatment box and is respectively connected to each of the ceramic filter tubes.

[0006] Each of the ceramic filter tubes includes a ceramic fiber tube, an upper tube body and a lower tube body. The lower tube body is fixedly connected to the bottom of the first adsorption chamber, and the upper tube body is fixedly connected to the top of the first adsorption chamber. An upper valve is provided inside the upper tube body, and a lower valve is provided inside the lower tube body. The two ends of the ceramic fiber tube are respectively connected to the upper tube body and the lower tube body.

[0007] The exhaust gas enters the first adsorption chamber through the air inlet pipe, and the water mist formed by the spraying absorbs the smoke and dust in the exhaust gas. The exhaust gas then passes through the activated carbon layer for re-adsorption, and finally enters the dust removal and denitrification chamber. The exhaust gas passes through the ceramic filter tube to complete the dust removal and denitrification, thereby removing the acidic gas in the exhaust gas. The integrated equipment reduces the operating cost.

[0008] Wherein, a plurality of first through holes are evenly spaced apart at the bottom of the dust removal and denitrification chamber, and each of the first through holes is respectively connected to the corresponding lower tube body.

[0009] The first through hole is provided to connect the ceramic filter tube with the outside when the lower valve is opened.

[0010] Wherein, a blower is provided inside each of the first through holes, and each of the blowers supplies air to the upper tube body.

[0011] By setting up the blower, when the upper valve and the lower valve are both opened, auxiliary air supply can be performed to quickly send the purified exhaust gas to the exhaust pipe. When the upper valve is closed, the ceramic filter tube can be cleaned.

[0012] Among them, the integrated adsorption, dust removal and denitrification treatment device for waste incineration power plants also includes a cleaning component, which includes a water tank, a first water pump, a first pipe body and a second pipe body. The water tank is arranged on one side of the treatment box, and the first water pump is arranged at the top of the treatment box. The two ends of the first pipe body are respectively connected to one end of the first water pump and the water tank, and the two ends of the second pipe body are respectively connected to the other end of the first water pump and the exhaust pipe.

[0013] When the equipment stops running and is cleaned, the first water pump draws water through the first pipe body and sends the water to the ceramic filter tube through the second pipe body. At this time, the upper valve is opened, the lower valve is closed, and the clean water component overflows the ceramic filter tube into the dust removal and denitrification chamber, completing the cleaning of the ceramic filter tube.

[0014] Wherein, the cleaning component further includes a filter screen, and the filter screen is arranged at one end of the second tube body close to the exhaust pipe.

[0015] By providing the filter, the purified exhaust gas is prevented from directly entering the second pipe body, and the residual particles in the exhaust gas are adsorbed. After the first water pump pumps water, the filter is automatically cleaned.

[0016] Wherein, a plurality of second through holes are evenly spaced at the bottom of the dust removal and denitrification chamber, and each of the second through holes is connected to the water tank pipe.

[0017] After the ceramic filter tube is cleaned, overflowing water returns to the water storage tank through the second through hole, thereby reducing water cost.

[0018] In which, the cleaning assembly also includes a cylinder, a movable plate and a conical block. The cylinder is arranged on the inner bottom wall of the dust removal and denitrification chamber. The movable plate is movably connected to the output end of the cylinder. The movable plate is movably connected to each of the ceramic filter tubes respectively. There are multiple conical blocks, each of which is fixedly connected to the movable plate and is located below the movable plate. Each of the conical blocks is respectively arranged above the corresponding second through hole.

[0019] When the cylinder is extended, the movable plate drives the conical block to separate from the second through hole, so that overflowing water can enter the second through hole. When the cylinder is contracted, the second through hole is closed, so that exhaust gas can only pass through the ceramic filter tube.

[0020] Wherein, a plurality of water-permeable holes are provided on the top of the movable plate, and the plurality of water-permeable holes and the plurality of conical blocks are arranged in an alternating manner.

[0021] The overflowing water passes through the water-permeable hole, enters the second through hole, and returns to the water storage tank.

[0022] The present invention provides an integrated adsorption, dust removal and denitration treatment device for a waste incineration power plant. The exhaust gas enters the first adsorption chamber through the air inlet pipe, and the water mist formed by the spraying absorbs the smoke and dust in the exhaust gas. The exhaust gas then passes through the activated carbon layer for re-adsorption, and finally enters the dust removal and denitration chamber. The exhaust gas passes through the ceramic filter tube, and the particulate matter contained in the exhaust gas is intercepted on the outer wall to form a filter cake, which further intercepts the fine particulate matter in the exhaust gas. The inner wall of the ceramic filter tube has an SCR catalyst, and the acidic gas in the exhaust gas reacts to generate nitrogen and water, which are removed, thereby completing denitration. The integrated equipment reduces operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of an adsorption, dust removal and denitrification integrated treatment device for a waste incineration power plant provided by the present invention.

[0024] Figure 2 It is a cross-sectional view of the ceramic filter tube provided by the present invention.

[0025] Figure 3 It is a cross-sectional view of the movable plate and the conical block provided by the present invention.

[0026] Figure 4 The present invention provides Figure 1 A magnified view of the local structure at point A.

[0027] Figure 5It is a cross-sectional view of the activated carbon layer provided by the present invention.

[0028] 1-inlet pipe, 2-exhaust pipe, 3-treatment box, 4-first adsorption chamber, 5-second adsorption chamber, 6-dust removal and denitrification chamber, 7-spray head, 8-activated carbon layer, 9-ceramic filter tube, 10-ceramic fiber tube, 11-upper tube body, 12-lower tube body, 13-upper valve, 14-lower valve, 15-first through hole, 16-air blower, 17-water storage tank, 18-first water pump, 19-first tube body, 20-second tube body, 21-filter screen, 22-second through hole, 23-cylinder, 24-movable plate, 25-conical block, 26-water permeable hole, 27-sliding frame, 28-activated carbon body, 29-cover plate, 30-second water pump, 31-third tube body, 32-sewage tank, 33-third through hole. DETAILED DESCRIPTION

[0029] See also Figures 1 to 5 The present invention provides an integrated adsorption, dust removal, and denitration treatment device for a waste incineration power plant, comprising an air intake pipe 1, an exhaust pipe 2, and a treatment box 3. A first adsorption chamber 4, a second adsorption chamber 5, and a dust removal and denitration chamber 6 are sequentially arranged inside the treatment box 3. A spray head 7 is provided inside the first adsorption chamber 4, and an activated carbon layer 8 is filled inside the second adsorption chamber 5. A plurality of ceramic filter tubes 9 are evenly spaced inside the dust removal and denitration chamber 6. The air intake pipe 1 is connected to the first adsorption chamber 4, and the exhaust pipe 2 is provided at the top of the treatment box 3 and is respectively connected to each of the ceramic filter tubes 9.

[0030] Each of the ceramic filter tubes 9 includes a ceramic fiber tube 10, an upper tube body 11 and a lower tube body 12. The lower tube body 12 is fixedly connected to the bottom of the first adsorption chamber 4, and the upper tube body 11 is fixedly connected to the top of the first adsorption chamber 4. An upper valve 13 is provided inside the upper tube body 11, and a lower valve 14 is provided inside the lower tube body 12. The two ends of the ceramic fiber tube 10 are respectively connected to the upper tube body 11 and the lower tube body 12.

[0031] The exhaust gas enters the first adsorption chamber 4 through the intake pipe 1, and the water mist formed by the spraying absorbs the smoke and dust in the exhaust gas. The exhaust gas then passes through the activated carbon layer 8 for re-adsorption, and finally enters the dust removal and denitrification chamber 6. The exhaust gas passes through the ceramic filter tube 9, and the particulate matter contained in the exhaust gas is intercepted on the outer wall to form a layer of filter cake, which further intercepts the fine particulate matter in the exhaust gas. The inner wall of the ceramic filter tube 9 has an SCR catalyst, and the acidic gas in the exhaust gas reacts to generate nitrogen and water, which are removed, thereby completing denitrification. The integrated equipment reduces operating costs.

[0032] A plurality of first through holes 15 are evenly spaced at the bottom of the dust removal and denitrification chamber 6, and each of the first through holes 15 is connected to the corresponding lower tube body 12; an air blower 16 is provided inside each of the first through holes 15, and each of the air blowers 16 supplies air to the upper tube body.

[0033] The first through hole 15 is provided to connect the ceramic filter tube 9 with the outside world when the lower valve 14 is opened; by providing the air blower 16, when both the upper valve 13 and the lower valve 14 are opened, auxiliary air supply can be performed to quickly deliver the purified exhaust gas to the exhaust pipe 2, and when the upper valve 13 is closed, the ceramic filter tube 9 can be cleaned.

[0034] The integrated adsorption, dust removal and denitrification treatment device for the waste incineration power plant also includes a cleaning component, which includes a water tank 17, a first water pump 18, a first pipe 19 and a second pipe 20. The water tank 17 is arranged on one side of the treatment box 3, and the first water pump 18 is arranged at the top of the treatment box 3. The two ends of the first pipe 19 are respectively connected to one end of the first water pump 18 and the water tank 17, and the two ends of the second pipe 20 are respectively connected to the other end of the first water pump 18 and the exhaust pipe 2; the cleaning component also includes a filter 21, and the filter 21 is arranged at one end of the second pipe 20 near the exhaust pipe 2; the bottom of the dust removal and denitrification chamber 6 is evenly spaced and provided with a plurality of second Through hole 22, each of the second through holes 22 is connected to the water tank 17 pipeline; the cleaning assembly also includes a cylinder 23, a movable plate 24 and a conical block 25, the cylinder 23 is arranged on the inner bottom wall of the dust removal and denitrification chamber 6, the movable plate 24 is movably connected to the output end of the cylinder 23, the movable plate 24 is movably connected to each of the ceramic filter tubes 9, and the number of the conical blocks 25 is multiple, each conical block 25 is fixedly connected to the movable plate 24, and is located below the movable plate 24, and each of the conical blocks 25 is respectively arranged above the corresponding second through hole 22; a plurality of water holes 26 are provided at the top of the movable plate 24, and the plurality of water holes 26 and the plurality of conical blocks 25 are staggered.

[0035] When the equipment stops running and is cleaned, the first water pump 18 pumps water through the first pipe body 19 and sends the water to the ceramic filter tube 9 through the second pipe body 20. At this time, the upper valve 13 is opened and the lower valve 14 is closed. The clean water component overflows the ceramic filter tube 9 and enters the dust removal and denitrification chamber 6 to complete the cleaning of the ceramic filter tube 9; by providing the filter screen 21, the purified exhaust gas is prevented from directly entering the second pipe body 20, and the residual particles in the exhaust gas are adsorbed. After the first water pump 18 pumps water, the cleaning of the filter screen 21 is automatically completed; when the cylinder 23 extends, the movable plate 24 drives the conical block 25 to disengage from the second through hole 22, so that the overflowed water can enter the second through hole 22. When the cylinder 23 contracts, the second through hole 22 is closed, so that the exhaust gas can only pass through the ceramic filter tube 9; the overflowed water passes through the water permeable hole 26, enters the second through hole 22, and returns to the water tank 17, reducing water costs.

[0036] The activated carbon layer 8 includes a sliding frame 27 and an activated carbon body 28 . A cover plate 29 is provided at the top of the second adsorption chamber 5 . The sliding frame 27 is slidably connected to the second adsorption chamber 5 . The activated carbon body 28 is provided inside the sliding frame 27 .

[0037] The activated carbon will become ineffective if used for too long. By providing the sliding frame 27 and the cover plate 29, the activated carbon body 28 can be easily replaced to improve the adsorption effect.

[0038] The integrated adsorption, dust removal and denitrification treatment device for waste incineration power plants also includes a second water pump 30 and a third tube body 31. The second water pump 30 is arranged at the top of the water tank 17 and is connected to the water tank 17 pipeline. One end of the third tube body 31 is connected to the second water pump 30, and the other end of the third tube body 31 is connected to the sprinkler head 7.

[0039] Water is pumped from the water storage tank 17 by the second water pump 30 and transmitted to the sprinkler head 7 through the third pipe 31 to form water mist, which absorbs the exhaust gas and reduces the water cost.

[0040] The integrated adsorption, dust removal and denitrification treatment device for waste incineration power plants also includes a sewage tank 32, which is arranged below the air intake pipe 1. A third through hole 33 is provided at the bottom of the first adsorption chamber, and the third through hole 33 is connected to the sewage tank 32 through a pipe.

[0041] By providing the sewage tank 32 , the water after adsorption is directed to the sewage tank 32 , thereby preventing the water after adsorption from entering the water storage tank 17 and causing water pollution, thereby improving the subsequent cleaning effect.

Claims

1. An integrated adsorption, dust removal and denitrification treatment device for a waste incineration power plant, characterized in that: The invention comprises an air inlet pipe, an exhaust pipe and a treatment box, wherein a first adsorption chamber, a second adsorption chamber and a dust removal and denitration chamber are sequentially arranged inside the treatment box, a spray head is arranged inside the first adsorption chamber, an activated carbon layer is filled inside the second adsorption chamber, a plurality of ceramic filter tubes are evenly spaced inside the dust removal and denitration chamber, the air inlet pipe is connected to the first adsorption chamber, and the exhaust pipe is arranged at the top of the treatment box and is respectively connected to each of the ceramic filter tubes; Each of the ceramic filter tubes includes a ceramic fiber tube, an upper tube body and a lower tube body, wherein the lower tube body is fixedly connected to the bottom of the first adsorption chamber, the upper tube body is fixedly connected to the top of the first adsorption chamber, an upper valve is provided inside the upper tube body, and a lower valve is provided inside the lower tube body, and both ends of the ceramic fiber tube are connected to the upper tube body and the lower tube body respectively; The integrated adsorption, dust removal, and denitrification treatment device for a waste incineration power plant further includes a cleaning assembly, which includes a water storage tank, a first water pump, a first pipe body, and a second pipe body. The water storage tank is disposed on one side of the treatment tank, the first water pump is disposed on the top of the treatment tank, and both ends of the first pipe body are respectively connected to one end of the first water pump and the water storage tank, and both ends of the second pipe body are respectively connected to the other end of the first water pump and the exhaust pipe. The bottom of the dust removal and denitration chamber is evenly spaced with a plurality of second through holes, each of which is connected to the water tank pipe; The cleaning assembly further includes a cylinder, a movable plate and a conical block, wherein the cylinder is arranged on the inner bottom wall of the dust removal and denitrification chamber, the movable plate is movably connected to the output end of the cylinder, and the movable plate is movably connected to each of the ceramic filter tubes, and the number of the conical blocks is multiple, each of which is fixedly connected to the movable plate and is located below the movable plate, and each of the conical blocks is respectively arranged above the corresponding second through hole; The top of the movable plate is provided with a plurality of water-permeable holes, and the plurality of water-permeable holes and the plurality of conical blocks are arranged in an alternating manner.

2. The integrated adsorption, dust removal and denitrification treatment device for a waste incineration power plant according to claim 1, characterized in that: A plurality of first through holes are evenly spaced at the bottom of the dust removal and denitrification chamber, and each of the first through holes is communicated with the corresponding lower tube body.

3. The integrated adsorption, dust removal and denitrification treatment device for a waste incineration power plant according to claim 2, characterized in that: An air blower is provided inside each of the first through holes, and each of the air blowers supplies air to the upper tube body.

4. The integrated adsorption, dust removal and denitrification treatment device for a waste incineration power plant according to claim 3, characterized in that: The cleaning assembly further includes a filter screen, which is arranged at one end of the second tube body close to the exhaust pipe.

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