Coal gas desulfurization system

Abstract

The present invention discloses a coal gas fine desulfurization device system in the technical field of coal gas desulfurization, comprising a tower body, an air inlet connected to the tower body, and an air outlet connected to the upper end of the tower body, wherein a plurality of spray mechanisms are arranged on the tower body, wherein the spray mechanism comprises a mounting platform fixedly connected to the inner wall of the tower body, a piston cylinder fixedly connected to the mounting platform, an upper end of a connecting pipe three is connected and rotatably connected to a feeding pipe, a lower end of the tower body is connected to a water pump, the feeding pipe penetrates through the upper end of the tower body and is connected to the water pump, a filtering mechanism comprises a filter cylinder connected to the lower side of one end of the piston cylinder located outside the mounting platform, a water blocking column is slidingly connected to the inner limit position of the filter cylinder, a push plate is fixedly connected to one end of the water blocking column close to the inner part of the piston cylinder, a material guide pipe is connected to the lower end of the material guide pipe, a material discharge pipe is penetrated through the lower end of the tower body and extends out, the present invention can realize filtration without stopping the desulfurization process, and at the same time can discharge the precipitate without causing smoke leakage.

Description

Technical Field

[0001] The invention relates to the technical field of coal gas desulfurization, in particular to a coal gas fine desulfurization device system. Background Art

[0002] Most of the sulfur in coal gas exists in the form of H2S, which is converted into SO2 after the coal gas is burned. Excessive SO2 content in the air will form local acid rain, which will endanger people's living environment. Therefore, the flue gas after coal gas combustion is often desulfurized by desulfurization equipment. Fine desulfurization is used to desulfurize the flue gas even if the sulfur dioxide content in the flue gas is lower than 10mg / m3 of the filter cartridge. The existing technology often uses limestone gypsum for desulfurization, that is, adding limestone to water to generate calcium hydroxide, and then contacting the calcium hydroxide solution with the flue gas by spraying, thereby neutralizing the sulfur dioxide in the flue gas.

[0003] Although the currently available equipment can achieve the purpose of desulfurization, after long-term use, the calcium sulfate formed by neutralization will form a precipitate, which will clog pipes and nozzles and affect the use of water pumps. Therefore, it is often necessary to filter the precipitate and then perform desulfurization. However, when filtering the precipitate, the desulfurization device needs to be stopped to discharge the solution from the desulfurization device. Therefore, the desulfurization device will stop working during filtering, and the production equipment also needs to stop working, which is inconvenient to use. However, if a filtering device is set inside the desulfurization device, it is easy for the flue gas to flow out of the desulfurization device through the filtering device. Moreover, the filtered calcium sulfate precipitate still needs to be discharged from the desulfurization device. Therefore, it is still necessary to stop the desulfurization process and then remove the precipitate. Summary of the invention

[0004] The technical problem of the present invention is to provide a coal gas fine desulfurization device system, which can achieve filtering without stopping the desulfurization process and can discharge the precipitate without causing smoke leakage.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a coal gas fine desulfurization device system, comprising a tower body, an air inlet connected to the tower body, and an air outlet connected to the upper end of the tower body, the tower body is provided with multiple groups of spray mechanisms, the spray mechanisms include a mounting platform fixedly connected to the inner wall of the tower body, a piston cylinder is fixedly connected to the mounting platform, the piston cylinder is connected to a connecting pipe 1, the connecting pipe 1 is connected to a connecting pipe 3, the upper end of the connecting pipe 3 is connected and rotatably connected to a feeding pipe, the lower end of the tower body is connected to a water pump, and the upper The material pipe passes through the upper end of the tower body and is connected to the water pump. A plurality of nozzles are arranged on the connecting pipe 2, and a filtering mechanism is also included. The filtering mechanism includes a filter cylinder connected to the lower side of one end of the piston cylinder located outside the mounting platform. The internal limiting sliding connection of the filter cylinder is connected with a water blocking column. The end of the water blocking column close to the inside of the piston cylinder is fixedly connected with a push plate. The lower end of the filter cylinder is connected with a material guide pipe, and the lower end of the material guide pipe is connected with a material discharge pipe. The lower end of the material discharge pipe passes through and extends out of the tower body, and also includes a transmission mechanism that can make the water blocking column move up and down intermittently.

[0006] As a further scheme of the present invention, the transmission mechanism includes a guide rod fixedly connected to the upper end of the water blocking column, and the guide rod is fixedly connected to a scraper ring at one end located in the filter cylinder. It also includes two eccentric connecting rods rotatably connected to the upper and lower sides of the mounting platform, and a disc is rotatably connected between the two eccentric connecting rods. The eccentric connecting rod at the upper end and the connecting pipe are fixedly connected. A rocker is hinged on the disc, and a piston plate is hinged at the end of the rocker away from the disc. The piston plate is limitedly slidably connected to the inside of the piston cylinder, and a guide frame is fixedly connected to the side of the piston plate close to the guide rod, which can move the guide rod toward the direction of the guide pipe. A spring that can reset the water blocking column upward is provided inside the filter cylinder, and it also includes a driving device that can rotate the eccentric connecting rod located below.

[0007] As a further solution of the present invention, an intermittent water discharge mechanism is also provided in the connecting pipe 1, and the intermittent water discharge mechanism includes a wedge block which is limitedly slidably connected to the inside of the connecting pipe 1, the upper end of the wedge block is fixedly connected to the valve head, the inner wall of the connecting pipe 1 is fixedly connected to the valve seat, the wedge block is also provided with a spring that can reset the wedge block downward, and the side of the piston plate away from the guide rod is fixedly connected to the top plate.

[0008] As a further solution of the present invention, the driving device includes a motor arranged at the lower end of the outside of the tower body, the output shaft of the motor is fixedly connected to the driving shaft, the upper end of the driving shaft is fixedly connected to the eccentric connecting rod located at the lower end of the inside of the mounting platform, and the driving shaft is provided with a stirring blade near the lower surface of the inner wall of the tower body, and the connecting pipe three is rotatably connected to the feeding pipe.

[0009] As a further solution of the present invention, a gear is fixedly connected to the outer wall of the filter cartridge, and a gear ring meshing with the gear is fixedly connected to the drive shaft.

[0010] As a further solution of the present invention, the piston cylinder and the filter cylinder are connected via a connecting bucket, and the diameter of the connecting bucket gradually decreases from a position close to the piston cylinder toward a direction close to the filter cylinder.

[0011] As a further solution of the present invention, the inside of the feed pipe and the guide pipe are both rotatably connected with an auger, and bevel gears are provided on one end of the auger close to the drive shaft and on the drive shaft, and the bevel gear on the auger is meshed with the bevel gear on the drive shaft.

[0012] As a further solution of the present invention, mesh foaming plates are provided on the inner wall of the tower body below the second connecting pipe and below the material guiding pipe.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The filtering effect can be achieved through the filter cartridge. During the filtering process, the transmission device can make the water blocking column move intermittently, so that the sediment can be transported to the discharge pipe through the guide pipe and discharged from the tower body. At the same time, it can ensure that the flue gas will not leak through the discharge pipe when the sediment is discharged.

[0015] 2. When the piston moves toward the filter cylinder, it can push and squeeze the solution flowing into the piston cylinder, so that it can accelerate the filtration through the filter cylinder, thereby increasing the filtration speed and ensuring that the calcium hydroxide solution flowing into the piston cylinder can be pushed into the filter cylinder. At the same time, after the filtration is completed, the valve head will close the valve seat, so that no calcium hydroxide solution will flow into the piston cylinder, thereby ensuring that after sufficient filtration, the precipitate will be pushed into the guide pipe. When filtering, the water blocking column will always block the guide pipe, so that the flue gas will not flow out through the guide pipe, and the guide pipe is connected to the discharge pipe downward, so it can also hinder the airflow from flowing out of the tower body through the discharge pipe. In addition, when the scraper ring moves downward, it can scrape the inner wall of the filter cylinder, thereby reducing the blockage of the inner wall of the filter cylinder by the precipitate, ensuring the filtration effect, and at the same time, it is beneficial for the precipitate to be concentrated below the filter cylinder, which is conducive to falling into the guide pipe.

[0016] 3. When the motor is working, it will drive the drive shaft to rotate, thereby driving the eccentric connecting rod at the bottom of the mounting platform to rotate through the drive shaft, thereby realizing the function of driving the disc to rotate with the axis of the drive shaft as the center. In addition, when the drive shaft rotates, the drive shaft will also drive the stirring blade to rotate, thereby realizing the effect of stirring the calcium hydroxide solution in the tower body, thereby reducing the possibility of calcium sulfate precipitation on the lower surface of the tower body, thereby ensuring the normal use of the water pump, and reducing the possibility of easy blockage of the pipeline due to precipitation aggregation, and at the same time promoting the dissolution of calcium sulfate in the calcium hydroxide solution to facilitate its transportation to the filter cartridge for filtration. At the same time, when the disc rotates, the eccentric connecting rod above the mounting platform will also rotate, thereby driving the connecting pipe three to rotate, thereby driving the connecting pipe two to rotate, thereby further improving the spraying effect of the nozzle, making it more uniform and covering a larger area, thereby ensuring sufficient contact with the flue gas to ensure the desulfurization effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure inside the tower body of the present invention;

[0020] Figure 3 It is a schematic diagram of the structure inside the tower body of the present invention from an upward perspective;

[0021] Figure 4 It is a schematic diagram of the structure inside the mounting platform of the present invention;

[0022] Figure 5 It is a schematic diagram of the structure inside the piston cylinder of the present invention;

[0023] Figure 6 It is a structural schematic diagram of the connection between the connecting pipe and the piston cylinder of the present invention;

[0024] Figure 7 It is a schematic diagram of the internal structure of the filter cartridge of the present invention from a bottom-up perspective.

[0025] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0026] 01. Tower body; 02. Feeding pipe; 03. Water pump; 04. Motor; 05. Feeding pipe; 06. Drive shaft; 07. Mesh bubbler plate; 08. Material guide pipe; 09. Mounting table; 10. Filter cartridge; 11. Gear ring; 12. Piston cylinder; 13. Connecting pipe one; 14. Connecting pipe two; 15. Nozzle; 16. Connecting pipe three; 17. Gear; 18. Auger; 19. Piston plate; 20. Rocker; 21. Eccentric connecting rod; 22. Disc; 23. Guide frame; 24. Top plate; 25. Guide rod; 26. Wedge; 27. Valve seat; 28. Valve head; 29. ​​Water blocking column; 30. Push plate; 31. Scraper ring; 32. Connecting bucket; 33. Air outlet; 34. Stirring blade; 35. Air inlet. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figures 1 to 7 The present invention provides a technical solution: a coal gas fine desulfurization device system, comprising a tower body 01, an air inlet 35 connected to the tower body 01, and an air outlet 33 connected to the upper end of the tower body 01, a plurality of spray mechanisms are arranged on the tower body 01, and the spray mechanisms include a mounting platform 09 fixedly connected to the inner wall of the tower body 01, a piston cylinder 12 is fixedly connected to the mounting platform 09, a connecting pipe 13 is connected to the piston cylinder 12, a connecting pipe 13 is connected to the connecting pipe 13, a connecting pipe 3 16 is connected to the connecting pipe 3 16, the upper end of the connecting pipe 3 16 is connected and rotatably connected to a feed pipe 02, a water pump 03 is connected to the lower end of the tower body 01, and the feed pipe 02 penetrates The upper end of the tower body 01 is connected to the water pump 03, and a plurality of nozzles 15 are arranged on the connecting pipe 14. It also includes a filtering mechanism, which includes a filter cartridge 10 connected to the lower side of one end of the piston cylinder 12 located outside the mounting platform 09. The internal limiting sliding connection of the filter cartridge 10 is connected with a water blocking column 29. The end of the water blocking column 29 close to the inside of the piston cylinder 12 is fixedly connected with a push plate 30. The lower end of the filter cartridge 10 is connected with a material guide pipe 08, and the lower end of the material guide pipe 08 is connected with a material discharge pipe 05. The lower end of the material discharge pipe 05 extends through the tower body 01, and also includes a transmission mechanism that can make the water blocking column 29 move up and down intermittently.

[0029] Can be combined Figures 1 to 4, as in the prior art, oxygen needs to be introduced into the tower body 01, a large amount of calcium hydroxide solution is added into the tower body 01 and the height is lower than the air inlet 35 and ensured to be higher than the water inlet of the water pump 03. When the water pump 03 is working, the calcium hydroxide solution in the tower body 01 will be pumped into the connecting pipe 3 16 through the feeding pipe 02, and then flow to the connecting pipe 2 14 through the connecting pipe 3 16, and then sprayed out through the nozzle 15. The calcium hydroxide solution will then flow from the upper part of the tower body 01 to the lower part again. At this time, the flue gas to be purified is introduced into the tower body 01 through the air inlet 35. After the flue gas is introduced into the tower body 01, it will flow from the lower part of the tower body 01 to the upper part, and finally flow out through the air outlet 33. Since the calcium hydroxide solution is continuously sprayed downward from the nozzle 15, the calcium hydroxide solution and the flue gas move in opposite directions, so that the calcium hydroxide solution can contact with gases such as sulfur dioxide in the flue gas, thereby neutralizing gases such as sulfur dioxide, and realizing the desulfurization function;

[0030] Can be combined Figures 3 to 7During the desulfurization process, part of the calcium hydroxide solution will flow into the piston cylinder 12 through the connecting pipe 13, and then flow into the filter cylinder 10 through the piston cylinder 12. The calcium hydroxide solution flowing into the filter cylinder 10 will be filtered by the filter cylinder 10, and the calcium hydroxide solution will directly flow out from the four sides of the filter cylinder 10 and flow back into the tower body 01, while the calcium sulfate precipitate will remain in the filter cylinder 10, thereby filtering out the calcium sulfate precipitate in the calcium hydroxide solution; then, under the action of the transmission mechanism, the water blocking column 29 will intermittently move up and down in the filter cylinder 10. As the water blocking column 29 gradually moves downward, when the position between the water blocking column 29 and the push plate 30 moves to the guide In the material pipe 08, at this time, the calcium sulfate precipitate in the filter cartridge 10 can flow into the material guide pipe 08 through the position of the connection between the filter cartridge 10 and the material guide pipe 08, and then flow into the discharge pipe 05 through the material guide pipe 08, and then be discharged from the inside of the tower body 01 through the discharge pipe 05; different from the prior art, the present technology can realize filtering inside the tower body 01, and there is no need to set the filtering device outside the tower body 01, which reduces the possibility of contamination of the calcium hydroxide solution. At the same time, the filtered calcium hydroxide solution can flow into the tower body 01 as soon as possible, ensuring that there is always sufficient calcium hydroxide solution in the tower body 01 for desulfurization, and during the filtration process, the desulfurization process does not need to be interrupted, and the desulfurization process can be carried out. It is carried out simultaneously with filtering, does not affect the effect of desulfurization, and thus does not affect the generation process. As the desulfurization progresses, after the concentration of the calcium hydroxide solution decreases, it is only necessary to add a high-concentration calcium hydroxide solution into the tower body 01 again to ensure the neutralization effect. In addition, it is ensured that the solution is not easy to block the connecting pipe 2 14, the nozzle 15, the connecting pipe 3 16, the connecting pipe 1 13, the feeding pipe 02, and a large amount of precipitation is formed inside the tower body 01, thereby ensuring the desulfurization effect. A water blocking column 29 is provided, which can move downward through the water blocking column 29 to send the filtered calcium sulfate in the filter cartridge 10 out of the filter cartridge 10, and when it moves upward, it will block the filter cartridge 10, thereby ensuring that the flue gas will not pass through at the same time. The calcium sulfate in the filter cartridge 10 flows into the guide pipe 08 through the connection with the guide pipe 08. At this time, the shape of the water blocking column 29 is conducive to the flow of calcium sulfate into the guide pipe 08 and will not cause the calcium sulfate to stay on the mounting platform 09. The push plate 30 can move downward at the same time as the water blocking column 29, thereby pushing the calcium sulfate precipitate in the filter cartridge 10 to move toward the guide pipe 08, thereby improving the conveying efficiency.

[0031] The filtering effect can be achieved through the filter cartridge 10. During the filtering process, the transmission device can make the water blocking column 29 move intermittently, so that the precipitate can be transported to the discharge pipe 05 through the guide pipe 08 and discharged from the tower body 01. At the same time, it can ensure that the smoke will not leak through the discharge pipe 05 when the precipitate is discharged.

[0032] As a further scheme of the present invention, the transmission mechanism includes a guide rod 25 fixedly connected to the upper end of the water blocking column 29, and one end of the guide rod 25 located in the filter cartridge 10 is fixedly connected to a scraper ring 31, and also includes two eccentric connecting rods 21 rotatably connected to the upper and lower sides of the mounting platform 09, and a disc 22 is rotatably connected between the two eccentric connecting rods 21. The eccentric connecting rod 21 at the upper end is fixedly connected to the connecting pipe 3 16, and a rocker 20 is hinged on the disc 22. The end of the rocker 20 away from the disc 22 is hinged to a piston plate 19, and the piston plate 19 is limitedly slidably connected to the inside of the piston cylinder 12. The side of the piston plate 19 close to the guide rod 25 is fixedly connected to a guide frame 23 that can move the guide rod 25 toward the direction of the guide pipe 08. A spring that can reset the water blocking column 29 upward is provided inside the filter cartridge 10, and also includes a driving device that can rotate the eccentric connecting rod 21 located below.

[0033] As a further solution of the present invention, an intermittent water discharge mechanism is also provided in the connecting pipe 13, and the intermittent water discharge mechanism includes a wedge block 26 which is limitedly slidably connected to the inside of the connecting pipe 13, the upper end of the wedge block 26 is fixedly connected to the valve head 28, the inner wall of the connecting pipe 13 is fixedly connected to the valve seat 27, and the wedge block 26 is also provided with a spring which can reset the wedge block 26 downward, and the side of the piston plate 19 away from the guide rod 25 is fixedly connected to the top plate 24.

[0034] Can be combined Figures 2 to 5 When the driving device drives the eccentric connecting rod 21 to rotate, the eccentric connecting rod 21 will drive the disc 22 to rotate in a circle with the axis of the driving shaft 06 as the center. As the disc 22 rotates one circle, it will drive the rocker 20 to drive the piston plate 19 to reciprocate one round in the piston cylinder 12. Since there are multiple rockers 20 and piston plates 19 on the mounting platform 09, as the disc 22 rotates one circle, all the piston plates 19 will reciprocate once in turn; combined with Figure 5When the piston plate 19 moves toward the side of the filter cartridge 10, it will also drive the guide frame 23 to move toward the side of the filter cartridge 10. When the guide frame 23 moves to the position of the guide rod 25, it will push the guide rod 25 to move downward, so that the guide rod 25 will push the water blocking column 29 to move downward, and the scraper ring 31 and the push plate 30 will move downward at the same time. When the part of the water blocking column 29 with a diameter smaller than the whole moves to the inside of the guide tube 08, the calcium sulfate precipitate in the filter cartridge 10 can fall into the guide tube 08 through the connection between the filter cartridge 10 and the guide tube 08. The downward movement of the push plate 30 can assist in pushing the precipitate in the filter cartridge 10 to move downward, thereby ensuring the efficiency of the falling material, thereby ensuring that a large amount of precipitate will not accumulate in the filter cartridge 10 to affect the filtering effect; when the guide frame 23 moves to the guide When the rod 25 is in the position, the piston plate 19 will move to the position of the wedge block 26, thereby pushing the wedge block 26 to move upward, so that the valve head 28 will be driven by the wedge block 26 to move upward, so that the valve head 28 will be against the valve seat 27, so that the water flow in the connecting pipe 13 will not continue to flow into the piston cylinder 12 through the valve seat 27, but will not affect the continued flow of water from the nozzle 15. During the process, as the piston plate 19 moves, the top plate 24 will continue to resist the wedge block 26, and then the guide frame 23 begins to push the guide rod 25 downward. At this time, the water blocking column 29 will begin to descend. Since the water blocking column 29 has a certain length, the part with a diameter larger than the whole will not directly enter the guide pipe 08, but will descend one end distance with the push of the guide frame 23 until the guide frame 23 moves to the rightmost end of the piston cylinder 12 (such as Figure 5 ), at this time, the part of the water blocking column 29 with a smaller diameter than the whole will move into the guide tube 08, and the sediment of the filter cartridge 10 can fall into the guide tube 08. When the water blocking column 29 descends, the filtering function will continue, so it can be ensured that the sediment will fall into the guide tube 08 after the solution is fully filtered;

[0035] When the piston plate 19 moves toward the filter cylinder 10, it can push and squeeze the solution flowing into the piston cylinder 12, thereby accelerating it to pass through the filter cylinder 10 for filtration, thereby increasing the filtration speed and ensuring that the calcium hydroxide solution flowing into the piston cylinder 12 can be pushed into the filter cylinder 10. At the same time, after the filtration is completed, the valve head 28 will close the valve seat 27, so that no calcium hydroxide solution will flow into the piston cylinder 12, thereby ensuring that after sufficient filtration, the precipitate will be pushed into the guide pipe 08. During the filtration, the water blocking column 29 will always block the guide pipe 08, so that the smoke will not flow out through the guide pipe 08, and the guide pipe 08 is connected to the discharge pipe 05 when it is connected downward, so it can also hinder the airflow from flowing out of the tower body 01 through the discharge pipe 05. In addition, when the scraper ring 31 moves downward, it can scrape the inner wall of the filter cylinder 10, thereby reducing the blockage of the inner wall of the filter cylinder 10 by the precipitate, ensuring the filtration effect, and at the same time, it is beneficial for the precipitate to be concentrated below the filter cylinder 10, thereby facilitating it to fall into the guide pipe 08.

[0036] As a further solution of the present invention, the driving device includes a motor 04 arranged at the lower end of the outside of the tower body 01, the output shaft of the motor 04 is fixedly connected to the driving shaft 06, the upper end of the driving shaft 06 is fixedly connected to the eccentric connecting rod 21 located at the lower end of the inside of the mounting platform 09, and the driving shaft 06 is provided with a stirring blade 34 near the lower surface of the inner wall of the tower body 01, and the connecting pipe 3 16 and the feeding pipe 02 are rotatably connected.

[0037] See also Figures 2 to 4 When the motor 04 is working, it will drive the drive shaft 06 to rotate, thereby driving the eccentric connecting rod 21 at the bottom of the mounting platform 09 to rotate through the drive shaft 06, so as to realize the function of driving the disc 22 to rotate with the axis of the drive shaft 06 as the center. In addition, when the drive shaft 06 rotates, the drive shaft 06 will also drive the stirring blade 34 to rotate, so as to achieve the effect of stirring the calcium hydroxide solution in the tower body 01, thereby reducing the possibility of calcium sulfate precipitation on the lower surface of the tower body 01, thereby ensuring the normal use of the water pump 03, and reducing the possibility of precipitation aggregation and easy blockage of the pipeline, and at the same time promoting the dissolution of calcium sulfate in the calcium hydroxide solution to facilitate the transportation to the filter cartridge 10 for filtration. At the same time, when the disc 22 rotates, the eccentric connecting rod 21 at the top of the mounting platform 09 will also rotate, thereby driving the connecting pipe three 16 to rotate, thereby driving the connecting pipe two 14 to rotate, thereby further improving the spraying effect of the nozzle 15, making it more uniform and covering a larger area, thereby ensuring sufficient contact with the flue gas to ensure the desulfurization effect.

[0038] As a further solution of the present invention, a gear 17 is fixedly connected to the outer wall of the filter cartridge 10 , and a gear ring 11 meshing with the gear 17 is fixedly connected to the drive shaft 06 .

[0039] When the drive shaft 06 rotates, the gear ring 11 is also driven to rotate. When the gear ring 11 rotates, all the gears 17 are driven to rotate at the same time, thereby driving the filter cartridge 10 to rotate, so that the water and sediment flowing into the filter cartridge 10 provide centrifugal force, which is conducive to the water flowing out of the filter cartridge 10, thereby further improving the efficiency and effect of filtration.

[0040] As a further solution of the present invention, the piston cylinder 12 and the filter cylinder 10 are connected via a connecting bucket 32 ​​, and the diameter of the connecting bucket 32 ​​gradually decreases from a position close to the piston cylinder 12 toward a position close to the filter cylinder 10 .

[0041] The connection bucket 32 ​​can promote water to flow into the filter cartridge 10, reduce the residue in the piston cylinder 12, and thus ensure the filtering effect.

[0042] As a further solution of the present invention, the inside of the feed pipe 05 and the guide pipe 08 are both rotatably connected with an auger 18, and bevel gears are provided on one end of the auger 18 close to the drive shaft 06 and on the drive shaft 06, and the bevel gear on the auger 18 is meshed with the bevel gear on the drive shaft 06.

[0043] When the drive shaft 06 rotates, the auger 18 in the guide pipe 08 and the discharge pipe 05 is driven to rotate through the bevel gear, thereby prompting the sediment to be discharged from the discharge pipe 05, reducing the possibility of clogging the guide pipe 08 and the discharge pipe 05, thereby ensuring continuous and effective filtration.

[0044] As a further solution of the present invention, the inner wall of the tower body 01 is provided with a mesh foaming plate 07 below the connecting pipe 2 14 and below the material guiding pipe 08 .

[0045] The flue gas will flow upward through the mesh holes on the mesh bubble plate 07 from the bottom, and the calcium hydroxide solution flowing out through the connecting pipe 14 and the filter cartridge 10 will flow onto the mesh bubble plate 07, thereby forming a shallow water layer on the mesh bubble plate 07. Therefore, when the flue gas passes through the mesh bubble plate 07, bubbles can be continuously bubbling out of the mesh holes through the mesh bubble plate 07, thereby ensuring sufficient contact between the flue gas and the calcium hydroxide solution, and then the calcium hydroxide solution will flow downward through the mesh bubble plate 07 into the tower body 01 again.

Claims

1. A coal gas fine desulfurization device system, comprising a tower body (01), an air inlet (35) connected to the tower body (01), and an air outlet (33) connected to the upper end of the tower body (01), characterized in that: The tower body (01) is provided with a plurality of spray mechanisms, the spray mechanisms comprising a mounting platform (09) fixedly connected to the inner wall of the tower body (01), the mounting platform (09) being fixedly connected to a piston cylinder (12), the piston cylinder (12) being connected to a connecting pipe 1 (13), the connecting pipe 1 (13) being connected to a connecting pipe 3 (16), the upper end of the connecting pipe 3 (16) being connected to and rotatably connected to a feeding pipe (02), the lower end of the tower body (01) being connected to a water pump (03), the feeding pipe (02) penetrating the upper end of the tower body (01) and then connected to the water pump (03), when the water pump (03) is working, the calcium hydroxide solution inside the tower body (01) will be pumped into the connecting pipe 3 (16) through the feeding pipe (02), and then The liquid flows to the connecting pipe two (14) through the connecting pipe three (16), and the connecting pipe two (14) is provided with a plurality of nozzles (15), and also includes a filtering mechanism, the filtering mechanism includes a filter cylinder (10) connected to the lower side of one end of the piston cylinder (12) located outside the mounting platform (09), the internal limiting sliding connection of the filter cylinder (10) is connected to a water blocking column (29), and the end of the water blocking column (29) close to the inside of the piston cylinder (12) is fixedly connected to a push plate (30), the lower end of the filter cylinder (10) is connected to a material guide pipe (08), the lower end of the material guide pipe (08) is connected to a material discharge pipe (05), the lower end of the material discharge pipe (05) extends through the tower body (01), and also includes a transmission mechanism capable of causing the water blocking column (29) to intermittently move up and down.

2. The coal gas fine desulfurization device system according to claim 1 is characterized in that: The transmission mechanism comprises a guide rod (25) fixedly connected to the upper end of the water blocking column (29), one end of the guide rod (25) located in the filter cartridge (10) is fixedly connected to a scraper ring (31), and also comprises two eccentric connecting rods (21) rotatably connected to the upper and lower sides of the interior of the mounting platform (09), a disc (22) is rotatably connected between the two eccentric connecting rods (21), the upper eccentric connecting rod (21) is fixedly connected to the connecting pipe three (16), a rocker (20) is hinged on the disc (22), and the rocker (20) A piston plate (19) is hingedly connected to the end away from the disc (22), and the piston plate (19) is slidably connected to the inside of the piston cylinder (12). The side of the piston plate (19) close to the guide rod (25) is fixedly connected to a guide frame (23) that can move the guide rod (25) toward the guide pipe (08). The inside of the filter cylinder (10) is provided with a spring that can reset the water blocking column (29) upward, and also includes a driving device that can rotate the eccentric connecting rod (21) located below.

3. The coal gas fine desulfurization device system according to claim 2 is characterized in that: An intermittent water discharge mechanism is also provided in the connecting pipe (13), and the intermittent water discharge mechanism comprises a wedge block (26) which is limitedly slidably connected inside the connecting pipe (13), the upper end of the wedge block (26) is fixedly connected to a valve head (28), the inner wall of the connecting pipe (13) is fixedly connected to a valve seat (27), the wedge block (26) is also provided with a spring capable of returning the wedge block (26) downward, and a side of the piston plate (19) away from the guide rod (25) is fixedly connected to a top plate (24).

4. The coal gas fine desulfurization device system according to claim 2 is characterized in that: The driving device comprises a motor (04) arranged at the lower end of the exterior of the tower body (01); the output shaft of the motor (04) is fixedly connected to a driving shaft (06); the upper end of the driving shaft (06) is fixedly connected to an eccentric connecting rod (21) located at the lower end of the interior of the mounting platform (09); a stirring blade (34) is arranged at a position of the driving shaft (06) close to the lower surface of the inner wall of the tower body (01); and the connecting pipe (16) is rotatably connected to the feeding pipe (02).

5. The coal gas fine desulfurization device system according to claim 4 is characterized in that: The outer wall of the filter cartridge (10) is fixedly connected to a gear (17), and the drive shaft (06) is fixedly connected to a gear ring (11) meshing with the gear (17).

6. The coal gas fine desulfurization device system according to claim 3 is characterized in that: The piston cylinder (12) and the filter cylinder (10) are connected via a connecting bucket (32), and the diameter of the connecting bucket (32) gradually decreases from a position close to the piston cylinder (12) towards a position close to the filter cylinder (10).

7. The coal gas fine desulfurization device system according to claim 4 is characterized in that: The insides of the feed discharge pipe (05) and the feed guide pipe (08) are both rotatably connected with an auger (18), and a bevel gear is provided on one end of the auger (18) close to the drive shaft (06) and on the drive shaft (06), and the bevel gear on the auger (18) is meshed with the bevel gear on the drive shaft (06).

8. The coal gas fine desulfurization device system according to claim 1, characterized in that: The inner wall of the tower body (01) is provided with a mesh foaming plate (07) located below the second connecting pipe (14) and below the material guiding pipe (08).

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