Integrated equipment for semi-dry desulfurization and centrifugal bag dust removal

Abstract

The present invention relates to the technical field of desulfurization equipment, specifically an integrated equipment of semi-dry desulfurization and centrifugal bag dust removal, including a desulfurization mechanism for desulfurizing boiler flue gas. In the present invention, the disturbance tube in the scraping mechanism can stir the flue gas in the desulfurization tower, making the flue gas flow disorderly so that the flue gas can fully react with the desulfurizing agent, improving the desulfurization effect on the flue gas. At the same time, the rapidly rotating disturbance tube can drive the vertical plate at the end and the inclined scraping blades on the outer wall to scrape the inner wall of the desulfurization tower. Therefore, this device can reduce the wall sticking of ash and slag without stopping the system and opening the desulfurization tower, thereby reducing the maintenance workload. The material pump II can re-transport the fine ash and desulfurizing agent filtered and collected by the dust removal device in the recovery tank to the rotating cylinder, and then spray them again into the desulfurization tower through the spraying head to participate in the desulfurization reaction again. Therefore, the materials can be recycled.

Description

Technical Field

[0001] The present invention relates to the technical field of desulfurization equipment, specifically an integrated equipment for semi-dry desulfurization and centrifugal bag dust removal. Background Art

[0002] Flue gas desulfurization mainly adopts wet, dry and semi-dry processes. Among them, the semi-dry process has less investment, smaller floor area, water and energy conservation compared with the wet desulfurization process, and there is no waste water and waste acid pollution. Therefore, it is very popular in industries such as small and medium-sized power plants, metallurgical sintering, heating and heat supply, chemical building materials, etc. During the operation of the semi-dry desulfurization device, the high-temperature raw flue gas carrying a large amount of dust particles contacts the fine droplets of the atomized desulfurizer slurry. Acidic gases such as SOX, HCl, and HF in the flue gas react and exchange heat quickly with the alkaline slurry droplets to complete the removal of acidic gases. At the same time, the desulfurizer slurry droplets are dried by the flue gas and are captured by the dust collector together with the dust particles in the flue gas to form a semi-dry desulfurization by-product - desulfurization ash. The semi-dry flue gas desulfurization ash is a light gray powder, with an appearance similar to cement, a water content of 1% - 5% (average value 3%), a bulk density of 0.55 - 1.0 t / m3, and a true density of 2.25 - 2.69 t / m3. The desulfurization ash particles have a relatively small particle size, and the vast majority of the particle sizes are concentrated below 20 um.

[0003] The main equipment of the semi-dry desulfurization device is the desulfurization tower. When the flue gas temperature is too high or the humidity is too high, it will affect the condensation of ash and slag. High temperature is conducive to the drying and separation of ash and slag, but too high humidity will make the ash and slag easily condense on the inner wall of the absorption tower. If the inner wall of the desulfurization tower and components such as nozzles are not cleaned for a long time, dust and dirt will accumulate, affecting the spraying effect of water mist, which will in turn exacerbate the condensation of dust on the inner wall of the absorber. Therefore, although the semi-dry desulfurization process is already mature, there is also the phenomenon of desulfurization tower wall caking. Since the desulfurization tower is in a closed state during operation, it is impossible to judge the internal situation from the outside. Only when problems occur during operation can it be detected. Often, there is no way to deal with it, and only the system can be shut down for cleaning, increasing the maintenance workload and causing unnecessary losses. Moreover, the existing bag dust removal device needs to stop the operation of the equipment when replacing the dust filter bag. Therefore, it is difficult to treat the flue gas during the replacement of the dust filter bag. Summary of the Invention

[0004] The purpose of the present invention is to provide an integrated equipment for semi-dry desulfurization and centrifugal bag dust removal to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] An integrated equipment for semi-dry desulfurization and centrifugal bag dust removal, comprising:

[0007] A desulfurization mechanism for desulfurizing boiler flue gas;

[0008] The wall scraping mechanism is fixedly arranged in the desulfurization mechanism; it is used for spraying absorbent and treating the wall - adhering ash slag in the absorption tower. The wall scraping mechanism includes a positioning plate. Rotating cylinders are sleeved on the top and bottom of the positioning plate. A plurality of disturbance pipes that are annularly and equidistantly fixed to the outer walls of the two rotating cylinders and are communicated with their interiors are provided. A plurality of spray nozzles that are equidistantly fixed to the outer walls of the plurality of disturbance pipes and are communicated with their interiors are provided. A vertical plate is fixedly connected to the end of the disturbance pipe. Oblique scraping blades are rotatably connected to the outer walls of the vertical plates. Torsion springs are fixedly arranged at both ends of the oblique scraping blades.

[0009] The dust removal mechanism is fixedly arranged on one side of the desulfurization mechanism and is used for filtering the flue gas after desulfurization and recovering the absorbent.

[0010] Furthermore, the desulfurization mechanism includes:

[0011] The intake pipe is used for transporting and discharging the boiler flue gas.

[0012] The desulfurization tower is fixedly connected to the top end of the intake pipe.

[0013] Furthermore, the desulfurization mechanism includes:

[0014] There are two cavity rings sleeved on the outside of the desulfurization tower.

[0015] The atomizing nozzles are annularly and equidistantly fixedly connected to the inner wall of the cavity ring, and the atomizing nozzles are communicated with the interior of the cavity ring.

[0016] The top cover is fixedly connected to the top of the desulfurization tower.

[0017] The tee - shaped pipe is fixedly connected between the outer walls of the two cavity rings, and both ends of the tee - shaped pipe are communicated with the cavity ring.

[0018] The water pump, the output end of the water pump is fixedly connected to the tee - shaped pipe.

[0019] The water storage tank is fixedly arranged at the bottom of the water pump.

[0020] Furthermore, two circular plates are fixedly connected to the bottom end of the desulfurization tower, and a plurality of venturi tubes are annularly and equidistantly fixedly connected between the two circular plates.

[0021] Furthermore, the wall scraping mechanism includes:

[0022] The communicating circular seat is rotatably connected to the end of the rotating cylinder.

[0023] The connecting pipe, one end of the connecting pipe is fixedly connected to the communicating circular seat.

[0024] The material pump one, the output end of the material pump one is fixedly connected to the other end of the connecting pipe.

[0025] Material tank, the input end of the first material pump is fixedly connected to the material tank.

[0026] Furthermore, the scraping mechanism includes:

[0027] Recovery tank, used for recovering the circulating absorbent;

[0028] Second material pump, its input end is fixedly connected to the recovery tank;

[0029] Elbow pipe, one end is fixedly connected to the output end of the second material pump, and the other end of the elbow pipe is fixedly connected to the communicating circular seat.

[0030] Furthermore, the dust removal mechanism includes:

[0031] First branch pipe, one end of the first branch pipe is fixedly connected to the top cover;

[0032] Two solenoid valves one are fixedly arranged on the outer wall of the first branch pipe;

[0033] Dust removal box, fixedly connected to the end of the first branch pipe;

[0034] Aggregate hopper, fixedly connected to the bottom of the dust removal box, the aggregate hopper is fixedly connected to the recovery tank, a screw conveyor is rotatably arranged in the aggregate hopper, and a driving motor is fixedly arranged at the end of the screw conveyor;

[0035] Second branch pipe, fixedly connected to the side wall of the dust removal box, two solenoid valves two are symmetrically and fixedly arranged in the second branch pipe;

[0036] Chimney tower, fixedly arranged at the end of the second branch pipe.

[0037] Furthermore, the dust removal mechanism includes:

[0038] Two disassembly plates are symmetrically arranged on one side of the dust removal box;

[0039] Four mounting seats are symmetrically and fixedly connected to both ends of the opposite side walls of the disassembly plate, and the mounting seats are screwed to the dust removal box through bolts;

[0040] Multiple bag - sleeving frames are equidistantly and fixedly connected to the inner wall of the disassembly plate;

[0041] Multiple strip - shaped cloth bags are all sleeved outside the bag - sleeving frames;

[0042] Multiple closing rings are all fixedly arranged at the ends of the strip - shaped cloth bags.

[0043] Furthermore, a plurality of socket frames are equidistantly and fixedly connected to the inner wall of the dust removal box, and the socket frames are in sliding fit with the strip - shaped cloth bags.

[0044] Furthermore, the dust removal mechanism includes:

[0045] A partition plate, fixedly connected to the inner wall of the dust removal box;

[0046] A plurality of turning plates, equidistantly arranged in the partition plate;

[0047] A plurality of rotating shafts, all fixedly connected to the central positions of the turning plates, and the rotating shafts are rotatably connected to the partition plate;

[0048] A plurality of tooth columns, all fixedly sleeved on the ends of the rotating shafts;

[0049] A rack plate, meshingly connected to the bottom of the tooth column;

[0050] A limiting column, slidably sleeved in the rack plate;

[0051] A cylinder, with its end fixedly connected to the rack plate, and the cylinder is fixedly connected to the outer wall of the dust removal box.

[0052] Compared with the prior art, the beneficial effects of the present invention are:

[0053] 1. Since the spray heads on the multiple disturbance pipes have the same orientation, when spraying powder materials, a reverse acting force will be generated on the disturbance pipes, thereby driving the multiple disturbance pipes and the rotating cylinder to rotate rapidly. At the same time, water is pressurized into the two cavity rings by a water pump, and then fine water droplets are sprayed into the interior of the desulfurization tower through the multiple atomizing nozzles on the inner walls of the cavity rings, so that the fine water droplets can combine with slaked lime to form a desulfurizing agent in the form of fine mist droplets. Then, the desulfurizing agent reacts with the flue gas for desulfurization. The disturbance pipes in the scraping mechanism can stir the flue gas in the desulfurization tower, making the flue gas flow disorderly so that the flue gas can fully react with the desulfurizing agent, improving the desulfurization effect on the flue gas. At the same time, the rapidly rotating disturbance pipes can drive the vertical plates at the ends and the inclined scraping blades on the outer walls to scrape the inner wall of the desulfurization tower. Therefore, this device can reduce the wall coking of ash slag without stopping the system and opening the desulfurization tower, thereby reducing the maintenance workload. Through the material pump two, the fine ash and desulfurizing agent filtered and collected by the dust removal device in the recovery tank can be re-transported to the rotating cylinder, and then sprayed out again in the desulfurization tower through the spray heads to participate in the desulfurization reaction again. Therefore, the materials can be recycled. Since the spray heads of the disturbance pipes in the upper and lower parts of the tower are oriented in opposite directions, the degree of flow disorder of the flue gas in the desulfurization tower can be increased, thereby enhancing the reaction effect between the flue gas and the desulfurizing agent.

[0054] 2. When the flue gas is discharged into the dust removal box through the first branch pipe, fine ash in the flue gas and the desulfurizer that has not reacted completely can be efficiently captured by multiple strip-shaped cloth bags and finally collected by the aggregate hopper. The collected fine ash and desulfurizer can be conveyed to the recovery tank through the auger therein. When it is necessary to replace the filter cloth bags in the dust removal mechanism, the rack plate can be pushed to move by the cylinder, so that the rack plate can drive multiple tooth columns to rotate, and then drive the turning plate to turn and keep horizontal through the rotating shaft. Thus, the partition plate can divide the dust removal box into two parts. Then, by closing the solenoid valve 1 and solenoid valve 2 corresponding to the part where the strip-shaped cloth bag needs to be replaced, and detaching the mounting seat, the detaching plate is separated from the dust removal box. Then, by driving the detaching plate to drive multiple bag frames out, all the strip-shaped cloth bags can be taken out at one time for replacement. Therefore, the strip-shaped cloth bags can be quickly replaced without stopping the filtration of the flue gas, thus reducing the losses of the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0056] Figure 2 is a schematic sectional structure diagram of the desulfurization absorption tower in the present invention;

[0057] Figure 3 is a schematic structure diagram of the desulfurization mechanism in the present invention;

[0058] Figure 4 is a schematic structure diagram of the wall scraping mechanism in the present invention;

[0059] Figure 5 is a schematic connection structure diagram of the rotating cylinder in the present invention;

[0060] Figure 6 is a schematic structure diagram of the strip-shaped cloth bag in the present invention;

[0061] Figure 7 is a schematic structure diagram of the dust removal mechanism in the present invention;

[0062] Figure 8 is a schematic structure diagram of the partition plate in the present invention.

[0063] In the figure: 100, desulfurization mechanism; 101, intake pipe; 102, desulfurization tower; 103, round plate; 104, Venturi tube; 105, cavity ring; 106, atomizing nozzle; 107, top cover; 108, three-way pipe; 109, water pump; 110, water storage tank; 200, scraping mechanism; 201, positioning plate; 202, rotating cylinder; 203, disturbing pipe; 204, spraying head; 205, vertical plate; 206, inclined scraping blade; 207, communicating round seat; 208, connecting pipe; 209, material pump 1; 210, material tank; 211, elbow pipe; 212, material pump 2; 213, recovery tank; 300, dust removal mechanism; 301, branch pipe 1; 302, solenoid valve 1; 303, dust removal box; 304, aggregate hopper; 305, disassembly plate; 306, mounting seat; 307, bagging frame; 308, strip-shaped cloth bag; 309, sealing ring; 310, socket frame; 311, partition plate; 312, turning plate; 313, rotating shaft; 314, tooth column; 315, rack plate; 316, limit column; 317, cylinder; 318, branch pipe 2; 319, chimney tower. Detailed implementation manner

[0064] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0065] Please refer to Figure 1-8In an embodiment of the present invention, an integrated equipment for semi-dry desulfurization and centrifugal bag dust removal includes: a desulfurization mechanism 100 for desulfurizing boiler flue gas; a wall scraping mechanism 200 fixedly arranged in the desulfurization mechanism 100; for spraying absorbent and treating the wall ash in the absorption tower. The wall scraping mechanism 200 includes a positioning plate 201, and rotating cylinders 202 are rotatably sleeved on the top and bottom of the positioning plate 201. A plurality of disturbance pipes 203 connected to their interiors are fixedly connected to the outer walls of the two rotating cylinders 202 at equal intervals in a ring shape. A plurality of spraying nozzles 204 connected to their interiors are fixedly connected to the outer walls of the plurality of disturbance pipes 203 at equal intervals. The end of the disturbance pipe 203 is fixedly connected to a vertical plate 205, and inclined scraping blades 206 are rotatably connected to the outer walls of the vertical plates 205. Torsion springs are fixedly arranged at both ends of the inclined scraping blades 206; a dust removal mechanism 300 is fixedly arranged on one side of the desulfurization mechanism 100 for filtering the desulfurized flue gas and recovering the absorbent. The desulfurization mechanism 100 includes: an air inlet pipe 101 for transporting and discharging boiler flue gas; a desulfurization tower 102 fixedly connected to the top of the air inlet pipe 101. There are two cavity rings 105 sleeved outside the desulfurization tower 102; atomizing nozzles 106 are fixedly connected to the inner walls of the cavity rings 105 at equal intervals in a ring shape, and the atomizing nozzles 106 are connected to the interiors of the cavity rings 105; a top cover 107 is fixedly connected to the top of the desulfurization tower 102; a three-way pipe 108 is fixedly connected between the outer walls of the two cavity rings 105, and both ends of the three-way pipe 108 are connected to the cavity rings 105; the output end of a water pump 109 is fixedly connected to the three-way pipe 108; a water storage tank 110 is fixedly arranged at the bottom of the water pump 109. Two circular plates 103 are fixedly connected to the bottom end of the desulfurization tower 102, and a plurality of venturi tubes 104 are fixedly connected between the two circular plates 103 at equal intervals in a ring shape. The wall scraping mechanism 200 includes: a communicating circular seat 207 rotatably connected to the end of the rotating cylinder 202; a connecting pipe 208, one end of the connecting pipe 208 is fixedly connected to the communicating circular seat 207; the output end of a material pump one 209 is fixedly connected to the other end of the connecting pipe 208; a material tank 210, the input end of the material pump one 209 is fixedly connected to the material tank 210. A recovery tank 213 is used for recovering the circulating absorbent; the input end of a material pump two 212 is fixedly connected to the recovery tank 213; one end of an elbow pipe 211 is fixedly connected to the output end of the material pump two 212, and the other end of the elbow pipe 211 is fixedly connected to the communicating circular seat 207.

[0066] Specifically, the flue gas is discharged into the desulfurization tower 102 through the inlet pipe 101. The venturi tube 104 can accelerate the flow of the flue gas. This acceleration helps to enhance the mixing effect between the flue gas and the desulfurizing agent. At the same time, the lime hydrate in the material tank 210 can be pressurized and conveyed into the rotating cylinder 202 through the material pump 1 209, and then ejected through the spraying nozzles 204 on the outer walls of the plurality of disturbance tubes 203. The spraying nozzles 204 on the plurality of disturbance tubes 203 have the same orientation. Therefore, when spraying the powder material, a reverse acting force will be generated on the disturbance tubes 203, which can drive the plurality of disturbance tubes 203 and the rotating cylinder 202 to rotate rapidly. At the same time, water is pressurized into the two cavity rings 105 through the water pump 109, and then a plurality of atomizing nozzles 106 on the inner walls of the cavity rings 105 spray fine water droplets into the interior of the desulfurization tower 102, so that the fine water droplets can combine with the lime hydrate to form a desulfurizing agent in the form of fine mist droplets. Then, the desulfurizing agent reacts with the flue gas for desulfurization. The disturbance tubes 203 in the scraping mechanism 200 can stir the flue gas in the desulfurization tower 102, making the flue gas flow disorderly so that the flue gas can fully react with the desulfurizing agent, improving the desulfurization effect on the flue gas. At the same time, the rapidly rotating disturbance tubes 203 can drive the vertical plates 205 at the ends and the inclined scraping blades 206 on the outer walls to scrape the inner wall of the desulfurization tower 102. Therefore, this device can reduce the wall caking of ash slag without stopping the system and opening the desulfurization tower 102, thereby reducing the maintenance workload. The fine ash and desulfurizing agent filtered and collected by the dust removal device in the recovery tank 213 can be re-conveyed into the rotating cylinder 202 through the material pump 2 212, and then ejected again into the desulfurization tower 102 through the spraying nozzles 204 to participate in the desulfurization reaction again. Therefore, the materials can be recycled. Since the spraying nozzles 204 of the disturbance tubes 203 in the upper and lower parts of the tower have opposite directions, the degree of flow disorder of the flue gas in the desulfurization tower 102 can be increased, thereby enhancing the reaction effect between the flue gas and the desulfurizing agent.

[0067] Example 1

[0068] Such as Figure 6-8As shown, in this embodiment, the dust removal mechanism 300 includes: a first branch pipe 301. One end of the first branch pipe 301 is fixedly connected to the top cover 107; there are two solenoid valves 302, which are fixedly arranged on the outer wall of the first branch pipe 301; a dust removal box 303 is fixedly connected to the end of the first branch pipe 301; an aggregate hopper 304 is fixedly connected to the bottom of the dust removal box 303. The aggregate hopper 304 is fixedly connected to the recovery tank 213. A screw conveyor is rotatably arranged in the aggregate hopper 304, and a driving motor is fixedly arranged at the end of the screw conveyor; a second branch pipe 318 is fixedly connected to the side wall of the dust removal box 303. Two solenoid valves 302 are symmetrically and fixedly arranged in the second branch pipe 318; a chimney tower 319 is fixedly arranged at the end of the second branch pipe 318. There are two disassembly plates 305, which are symmetrically arranged on one side of the dust removal box 303; there are four mounting seats 306, which are symmetrically and fixedly connected to both ends of the opposite side walls of the disassembly plate 305. The mounting seats 306 are screwed to the dust removal box 303 through bolts; there are multiple bag - sleeving frames 307, which are equidistantly and fixedly connected to the inner wall of the disassembly plate 305; there are multiple strip - shaped cloth bags 308, all of which are sleeved outside the bag - sleeving frames 307; there are multiple closing rings 309, all of which are fixedly arranged at the ends of the strip - shaped cloth bags 308. A plurality of socket frames 310 are equidistantly and fixedly connected to the inner wall of the dust removal box 303, and the socket frames 310 are in sliding fit with the strip - shaped cloth bags 308. A partition plate 311 is fixedly connected to the inner wall of the dust removal box 303; there are multiple turning plates 312, which are equidistantly arranged in the partition plate 311; there are multiple rotating shafts 313, all of which are fixedly connected to the central positions of the turning plates 312. The rotating shafts 313 are rotatably connected to the partition plate 311; there are multiple tooth columns 314, all of which are fixedly sleeved at the ends of the rotating shafts 313; a rack plate 315 is meshed with the bottom of the tooth columns 314; a limiting column 316 is slidably sleeved in the rack plate 315; the end of a cylinder 317 is fixedly connected to the rack plate 315, and the cylinder 317 is fixedly connected to the outer wall of the dust removal box 303.

[0069] In this embodiment, when the flue gas is discharged into the dust removal box 303 through the first branch pipe 301, the fine ash and the unreacted desulfurizer in the flue gas can be efficiently captured by a plurality of strip-shaped cloth bags 308, and finally collected by the aggregate hopper 304. The collected fine ash and desulfurizer can be conveyed to the recovery tank 213 through the auger therein. When it is necessary to replace the filter dust cloth bag in the dust removal mechanism 300, the rack plate 315 can be pushed to move by the cylinder 317, so that the rack plate 315 can drive a plurality of tooth columns 314 to rotate, and then drive the turning plate 312 to turn and keep horizontal through the rotating shaft 313, so that the partition plate 311 can divide the dust removal box 303 into two parts. Then, by closing the first solenoid valve 302 and the second solenoid valve corresponding to the part where the strip-shaped cloth bag 308 needs to be replaced, the disassembly plate 305 and the dust removal box 303 are separated by disassembling the mounting seat 306, and then the disassembly plate 305 is driven to move out a plurality of bag frames 307, so that all the strip-shaped cloth bags 308 can be taken out at one time for replacement. Therefore, the strip-shaped cloth bags 308 can be quickly replaced without stopping the flue gas filtration, thus reducing the losses of the factory.

[0070] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic characteristics of the present invention, the present invention can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claimed claims.

[0071] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. Semi-dry desulfurization and centrifugal bag dust removal integrated equipment, characterized in that: include: A desulfurization mechanism (100) is used to perform desulfurization treatment on boiler flue gas; A wall scraping mechanism (200) is fixedly arranged in the desulfurization mechanism (100); it is used for spraying absorbent and treating ash accumulated on the wall of the absorption tower; the wall scraping mechanism (200) comprises a positioning plate (201); the top and bottom of the positioning plate (201) are both rotatably sleeved with a rotating cylinder (202); the outer walls of the two rotating cylinders (202) are both annularly and equidistantly fixedly connected with a plurality of disturbance tubes (203) connected to the interior thereof; the outer walls of the plurality of disturbance tubes (203) are both equidistantly fixedly connected with a plurality of spray heads (204) connected to the interior thereof; the ends of the disturbance tubes (203) are fixedly connected with a vertical plate (205); the outer walls of the vertical plates (205) are both rotatably connected with an inclined scraper (206); and both ends of the inclined scraper (206) are fixedly provided with a torsion spring; The dust removal mechanism (300) is fixedly arranged on one side of the desulfurization mechanism (100) and is used to filter the flue gas after desulfurization and recover the absorbent. The dust removal mechanism (300) comprises: Two disassembly plates (305) are provided and symmetrically arranged on one side of the dust removal box (303); a plurality of sleeve frames (310) are fixedly connected to the inner wall of the dust removal box (303) at equal distances; the sleeve frames (310) and the strip-shaped cloth bag (308) are slidably fitted; Four mounting seats (306) are provided and are symmetrically fixedly connected to two ends of opposite side walls of the disassembly plate (305); the mounting seats (306) are screwed together with the dust removal box (303) via bolts; A plurality of bagging frames (307) are provided and fixedly connected to the inner wall of the disassembly plate (305) at equal distances; A plurality of strip-shaped cloth bags (308) are provided, each of which is sleeved on the outside of the bagging frame (307); A plurality of closed rings (309) are provided, each of which is fixedly disposed at the end of the strip-shaped cloth bag (308); A partition plate (311) fixedly connected to the inner wall of the dust removal box (303); A plurality of flip plates (312) are provided and are arranged at equal distances in the partition plate (311); A plurality of rotating shafts (313) are provided, each of which is fixedly connected to the center of the flip plate (312), and the rotating shafts (313) are rotatably connected to the partition plate (311); A plurality of toothed columns (314) are provided, each of which is fixedly sleeved on the end of the rotating shaft (313); A rack plate (315) meshingly connected to the bottom of the gear column (314); A limiting column (316) is slidably sleeved in the rack plate (315); A cylinder (317), an end of which is fixedly connected to the rack plate (315), and the cylinder (317) is fixedly connected to the outer wall of the dust removal box (303); Wherein, the wall scraping mechanism (200) further comprises: A communicating round seat (207) rotatably connected to the end of the rotating cylinder (202); A connecting pipe (208), one end of which is fixedly connected to the connecting round seat (207); A material pump (209), wherein the output end of the material pump (209) is fixedly connected to the other end of the connecting pipe (208); A material tank (210), wherein the input end of the material pump 1 (209) is fixedly connected to the material tank (210); A recovery tank (213) for recovering the circulating absorbent; A second material pump (212), the input end of which is fixedly connected to the recovery tank (213); One end of the curved pipe (211) is fixedly connected to the output end of the second material pump (212), and the other end of the curved pipe (211) is fixedly connected to the connecting round seat (207).

2. The integrated equipment of semi-dry desulfurization and centrifugal bag dust removal according to claim 1 is characterized in that: The desulfurization mechanism (100) comprises: An air inlet pipe (101) is used to transport and discharge boiler flue gas; The desulfurization tower (102) is fixedly connected to the top of the air intake pipe (101).

3. The integrated equipment of semi-dry desulfurization and centrifugal bag dust removal according to claim 2 is characterized in that: The desulfurization mechanism (100) comprises: Two cavity rings (105) are provided and sleeved on the outside of the desulfurization tower (102); Atomizing nozzles (106) are fixedly connected to the inner wall of the cavity ring (105) in an annular shape and at equal distances, and the atomizing nozzles (106) are in communication with the interior of the cavity ring (105); A top cover (107) is fixedly connected to the top of the desulfurization tower (102); A three-way pipe (108) fixedly connected between the outer walls of the two cavity rings (105), wherein both ends of the three-way pipe (108) are in communication with the cavity rings (105); A water pump (109), wherein an output end of the water pump (109) is fixedly connected to the three-way pipe (108); The water storage tank (110) is fixedly disposed at the bottom of the water pump (109).

4. The integrated equipment of semi-dry desulfurization and centrifugal bag dust removal according to claim 3 is characterized in that: Two circular plates (103) are fixedly connected to the bottom end of the desulfurization tower (102), and a plurality of venturi tubes (104) are fixedly connected in an annular manner at equal distances between the two circular plates (103).

5. The integrated equipment of semi-dry desulfurization and centrifugal bag dust removal according to claim 1 is characterized in that: The dust removal mechanism (300) comprises: A branch pipe (301), one end of which is fixedly connected to the top cover (107); Solenoid valves 1 (302), two of which are fixedly arranged on the outer wall of branch pipe 1 (301); A dust removal box (303) is fixedly connected to the end of the first branch pipe (301); A collecting hopper (304) is fixedly connected to the bottom of the dust removal box (303), the collecting hopper (304) is fixedly connected to the recovery tank (213), an auger is rotatably arranged in the collecting hopper (304), and a driving motor is fixedly arranged at the end of the auger; A second branch pipe (318) is fixedly connected to the side wall of the dust removal box (303), and two second solenoid valves are symmetrically fixedly arranged in the second branch pipe (318); The chimney tower (319) is fixedly arranged at the end of the second branch pipe (318).

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