Adsorption purification device for semi-coke gas

Abstract

The invention relates to the technical field of gas adsorption and purification, and discloses an adsorption and purification device for semi-coke coal gas, which comprises a spray tower, a spray dust fall component, a regeneration tower, a first heating jacket, a regeneration shaft, a second heating jacket, a second heating jacket, a second heating jacket, a third heating jacket, a fourth heating jacket and a fourth heating jacket, a plurality of groups of nitrogen spray holes distributed in a circumferential array are formed in the regeneration shaft, a spiral lifting sheet is mounted on the regeneration shaft and corresponds to the inner side of the regeneration tower, a spiral dust filtering sheet is mounted on the regeneration shaft and corresponds to the inner side of the spray tower, and the regeneration tower is communicated with two symmetrically arranged adsorption purification modules. When the adsorption purification device is used for purifying coal gas, the integrated regeneration of the adsorption filter material and the refilling of the regenerated adsorption filter material can be realized, so that the automatic maintenance of the coal gas purification device is realized, and the purification and adsorption performance of the purification device is maintained.

Description

Technical Field

[0001] The present invention relates to the technical field of gas adsorption purification, and more specifically, to an adsorption purification device for blue coal gas. Background Art

[0002] Semi-coke is mainly made by carbonizing coconut shells. During the carbonization process, organic matter such as cellulose, hemicellulose and lignin in coconut shells will be thermally decomposed to form gas and liquid, among which the gas component occupies the main part of the carbonization product. These gases are released during the carbonization process to form semi-coke gas with high calorific value. In the prior art, a patent document with publication number CN221131490U discloses a coal gasification gas purification tower, including a body, one side of the body is equipped with an air inlet pipe, and the inner wall of the body is provided with a purification unit on the side away from the air inlet pipe. The purification unit includes a filter, a connecting pipe, a water tank, a shell, a bend, an adsorption layer, a purification box, a submersible pump, a nozzle, an exhaust chimney and an air pump. A connecting pipe is provided above the filter, and a submersible pump is installed on the top of the connecting pipe. A water tank is installed on the top of the submersible pump. The above device cooperates with the connecting pipe, the nozzle and the bend. When the gas enters the interior of the body, it first A spray treatment is carried out to treat the impurities in the gas for the first time, and at the same time, the adsorption layer is used to perform a second and more detailed filtration and removal of finer impurities in the gas, and finally the purification layer is used to remove harmful gases inside the gas to meet the emission standards. However, when the above-mentioned adsorption purification device purifies the coal gas, it cannot realize the integrated regeneration of the adsorption filter material and the refilling of the adsorption filter material after the regeneration, and then it is not convenient to realize the automatic maintenance of the purification device and maintain the adsorption performance of the purification device. Based on this, the present invention provides an adsorption purification device for lignite gas to solve the technical problems existing in the above-mentioned background technology. Summary of the invention

[0003] In order to overcome the shortcomings of the prior art, the present invention provides an adsorption purification device for lignite gas. When purifying the gas, the adsorption purification device can realize the integrated regeneration of the adsorption filter material and the refilling of the adsorption filter material after the regeneration, thereby realizing the automatic maintenance of the gas purification device and maintaining the purification adsorption performance of the purification device.

[0004] To achieve the above object, the present invention provides the following technical solution: an adsorption purification device for semi-coke gas, comprising a spray tower, and further comprising: Spray dust reduction components, which are installed in the spray tower and are used for spray dust reduction of blue coal gas; A regeneration tower, wherein a first heating jacket is installed on the regeneration tower, a regeneration shaft is installed in the regeneration tower, a plurality of nitrogen spray holes distributed in a circumferential array are provided on the regeneration shaft, a spiral lifting sheet is installed on the regeneration shaft at a position corresponding to the inner side of the regeneration tower, a spiral dust filter sheet is installed on the regeneration shaft at a position corresponding to the inner side of the spray tower, and two symmetrically arranged adsorption purification modules are connected to the regeneration tower; The adsorption purification module comprises a filter material return pipe and a filter material discharge pipe, both of which are connected to the inner cavity of the regeneration tower, an adsorption cylinder is rotatably connected between the filter material return pipe and the filter material discharge pipe, the adsorption cylinder is filled with adsorption filter material, the outer side of the adsorption cylinder is coated with a nitrogen retention membrane, a clean air discharge cylinder is rotatably sleeved on the adsorption cylinder, a feed shaft is rotatably connected to the inner wall of the filter material return pipe, a spiral feed sheet that fits the adsorption cylinder is installed on the feed shaft, a split air flow channel connected to a spray dust reduction component is provided in the feed shaft, and a plurality of groups of regularly distributed air distribution holes that are connected to the split air flow channel are provided on the feed shaft; A gas discharge pipe connected to a clean gas discharge cylinder; A driving module, used to drive the regeneration shaft, the adsorption cylinder and the unloading shaft. The regeneration shaft is driven by the driving module and moves back and forth along the axis direction of the regeneration tower; The nitrogen supply module is used to supply nitrogen to the nitrogen spray holes.

[0005] As a preferred technical solution of the present invention, it also includes a carrier, which is fixedly connected to the spray tower and the regeneration tower respectively, and a single-chip microcomputer is installed on the carrier. The bottom of the regeneration tower is connected to an exhaust filter pipe, and a guide pipe is provided between the spray tower and the exhaust filter pipe. A guide shaft is opened in the guide pipe, and the radius of the guide shaft is 1.05 times the radius of the regeneration shaft.

[0006] As a preferred technical solution of the present invention, the spray dust reduction component includes a dust reduction chamber opened in a spray tower, a gas inlet pipe connected to the dust reduction chamber is installed on the top surface of the spray tower, and the gas outlet port of the gas inlet pipe extends to the interior of the dust reduction chamber, and an air filter cartridge adapted to the spiral dust filter is provided on the top surface of the spray tower, the bottom end of the air filter cartridge is connected to the dust reduction chamber, the spiral dust filter is fitted with the air filter cartridge, and the spiral dust filter is evenly distributed with vertically arranged air filter holes, and the top of the air filter cartridge is connected to two air supply pipes, and the two air supply pipes are respectively rotatably connected to the two branch flow channels, and the two air supply pipes are installed with a second heating jacket, and a group of stirring rods are installed on the regeneration shaft and at a position corresponding to the inner side of the dust reduction chamber.

[0007] As a preferred technical solution of the present invention, the spray dust reduction component also includes a drain valve installed on the bottom surface of the spray tower and a liquid replenishment pipe installed on the top surface of the spray tower, the drain valve and the liquid replenishment pipe are both connected to the dust reduction chamber, the dust reduction chamber is connected to a circulation pump, the liquid outlet port of the circulation pump is connected to a pump liquid pipe, a spray flow channel with a bottom opening is fixedly opened on the regeneration shaft, the liquid outlet end of the pump liquid pipe is slidably connected to the spray flow channel, and a plurality of groups of regularly distributed spray holes are opened on the regeneration shaft and corresponding to the positions of the spiral dust filter.

[0008] As a preferred technical solution of the present invention, the driving module includes a motor installed on a carrier and a vibration table slidably connected to the carrier, the inner wall of the carrier is rotatably connected to an air guide shaft, the output shaft end of the motor and the air guide shaft are both equipped with first bevel gears, the two first bevel gears are meshed with each other, the regeneration shaft is rotatably connected to the vibration table through a bearing, a coupling groove with openings at both ends is provided on the top of the regeneration shaft, the regeneration shaft is slidably connected to the coupling groove, and the external shape of the regeneration shaft and the cross-section of the coupling groove are both regular polygons.

[0009] As a preferred technical solution of the present invention, the driving module also includes an inner ring gear installed on the regeneration shaft, a driven gear is installed on the discharge shaft, the driven gear is transmission connected to the inner ring gear, each of the filter material discharge pipes is rotatably connected to a differential shaft, the differential shaft is transmission connected to the discharge shaft through a chain belt, differential gears are installed on the bottom end of the differential shaft and the adsorption cylinder, and the two differential gears are meshed with each other.

[0010] As a preferred technical solution of the present invention, the tooth height of the inner gear ring is 7 to 10 times the tooth height of the driven gear.

[0011] As a preferred technical solution of the present invention, the driving module also includes a coupling rotatably connected to the carrier, a second bevel gear is installed on the coupling, the second bevel gear is transmission-connected to the first bevel gear on the air guide shaft, a protrusion is installed on the coupling, a vibration transmission wheel that is rotatably connected to the protrusion is installed on the vibration table, and a group of reset springs are installed between the vibration table and the carrier.

[0012] As a preferred technical solution of the present invention, the nitrogen supply module includes a nitrogen storage tank, which is fixedly connected to the carrier, and the gas outlet port of the nitrogen storage tank is connected to the nitrogen supply pipe. A nitrogen distribution channel is fixedly opened on the regeneration shaft, and the gas outlet port of the nitrogen supply pipe is connected to the nitrogen distribution channel. Each of the nitrogen nozzles is connected to the nitrogen distribution channel. A third heating jacket is provided on the nitrogen supply pipe, and a temperature probe is installed in the nitrogen supply pipe. The data end of the temperature probe is connected to the data of the single-chip microcomputer.

[0013] As a preferred technical solution of the present invention, the nitrogen spray hole is arranged to be inclined downward, and the angle between the axis of the nitrogen spray hole and the horizontal plane is 45°.

[0014] Compared with the prior art, the present invention has the following beneficial effects: When the adsorption purification device is working, it can adsorb and purify the floating particles and impurities in the lignite gas. When purifying the gas, the device can realize the integrated regeneration of the adsorption filter material and the refilling of the adsorption filter material after the regeneration, thereby realizing the automatic maintenance of the gas purification device and maintaining the purification adsorption performance of the purification device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an adsorption purification device for blue charcoal gas of the present invention; Figure 2 For the present invention Figure 1 A schematic diagram of the local enlarged structure at point A in the middle; Figure 3 For the present invention Figure 1 A schematic diagram of the structure from another perspective; Figure 4 For the present invention Figure 1 A schematic cross-sectional structure diagram of ; Figure 5 For the present invention Figure 4 A schematic diagram of the local enlarged structure at B in the middle; Figure 6 For the present invention Figure 4 A schematic diagram of the local enlarged structure at C in the middle; Figure 7 It is a structural schematic diagram of the driven gear and the filter material discharge pipe of the present invention; Figure 8 For the present invention Figure 7 A schematic cross-sectional structure diagram of ; Fig. 9 It is a schematic diagram of the cross-sectional structure of the nitrogen retention membrane and the adsorption cylinder of the present invention.

[0016] In the figure: 1, spray tower; 2, regeneration tower; 3, first heating jacket; 4, regeneration shaft; 5, nitrogen spray hole; 6, spiral lifting plate; 7, spiral dust filter; 8, filter material return pipe; 9, filter material discharge pipe; 10, adsorption cylinder; 11, nitrogen retention membrane; 12, clean gas discharge cylinder; 13, unloading shaft; 14, spiral unloading plate; 15, flow channel; 16, air hole; 17, gas discharge pipe; 18, carrier; 19, single chip microcomputer; 20, air extraction filter pipe; 21, dust reduction chamber; 22, gas inlet pipe; 23, filter cylinder; 2 4. Air filter hole; 25. Air supply pipe; 26. Second heating jacket; 27. Stirring rod; 28. Drain valve; 29. ​​Circulation pump; 30. Pump liquid pipe; 31. Spray flow channel; 32. Spray hole; 33. Motor; 34. Vibration table; 35. Air guide shaft; 36. Internal gear ring; 37. Driven gear; 38. Differential shaft; 39. Differential gear; 40. Coupling; 41. Bump; 42. Vibration wheel; 43. Reset spring; 44. Nitrogen storage tank; 45. Nitrogen supply pipe; 46. Third heating jacket; 47. Temperature probe. DETAILED DESCRIPTION

[0017] 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.

[0018] like Figures 1 to 9 As shown, the present invention provides an adsorption purification device for blue coal gas, comprising a spray tower 1, and further comprising: A spray dust reduction component is arranged in the spray tower 1 and is used for spray dust reduction of blue coal gas; The spray dust reduction component is used to remove floating particles in the blue coal gas; A regeneration tower 2, wherein a first heating jacket 3 is installed on the regeneration tower 2, and a regeneration shaft 4 is installed in the regeneration tower 2; A spiral dust filter 7 is installed on the regeneration shaft 4 and at a position corresponding to the inner side of the spray tower 1; The spiral dust filter 7 is evenly distributed with vertically arranged air filter holes 24; It also includes a carrier 18, which is fixedly connected to the spray tower 1 and the regeneration tower 2 respectively, and a single-chip computer 19 is installed on the carrier 18. The bottom of the regeneration tower 2 is connected to a suction filter pipe 20, and a guide pipe is provided between the spray tower 1 and the suction filter pipe 20. A guide shaft is provided in the guide pipe, and the radius of the guide shaft is 1.05 times the radius of the regeneration shaft 4. The spray dust reduction component includes a dust reduction chamber 21 opened in the spray tower 1, and a gas inlet pipe 22 connected to the dust reduction chamber 21 is installed on the top surface of the spray tower 1; The gas outlet port of the gas inlet pipe 22 extends to the interior of the dust removal chamber 21; When the semi-coke gas is used, the semi-coke gas to be treated is fed into the dust reduction chamber 21 through the gas inlet pipe 22; After the blue coal gas is sent into the dust reduction chamber 21 through the gas inlet pipe 22, the blue coal gas is subjected to dust reduction treatment by the dust reduction liquid in the dust reduction chamber 21; After the blue coal gas is treated with dust reduction liquid, it enters the filtering area of ​​the spiral dust filter 7 and is filtered through the filter holes 24; During the regeneration of the adsorbed filter material, the spiral dust filter 7 rotates at a set speed and the conveying direction of the spiral dust filter 7 is downward, and the filtered dust is discharged to the dust reduction chamber 21 through the downward conveying structure of the spiral dust filter 7; Adsorption filter material is used to achieve adsorption and purification of micro impurities in semi-coal gas; The top surface of the spray tower 1 is provided with an air filter cartridge 23 adapted to the spiral dust filter 7, the bottom end of the air filter cartridge 23 is connected to the dust reduction chamber 21, the spiral dust filter 7 is fitted with the air filter cartridge 23, and a group of stirring rods 27 are installed on the regeneration shaft 4 and at a position corresponding to the inner side of the dust reduction chamber 21.

[0019] The spray dust reduction component also includes a drain valve 28 installed on the bottom surface of the spray tower 1 and a liquid replenishing pipe installed on the top surface of the spray tower 1, and the drain valve 28 and the liquid replenishing pipe are both connected to the dust reduction chamber 21; The dust reduction chamber 21 is connected to a circulation pump 29, the liquid outlet port of the circulation pump 29 is connected to a pump liquid pipe 30, a spray flow channel 31 with an opening at the bottom is fixedly provided on the regeneration shaft 4, the liquid outlet end of the pump liquid pipe 30 is slidably connected to the spray flow channel 31, and a plurality of groups of regularly distributed spray holes 32 are provided on the regeneration shaft 4 and at positions corresponding to the spiral dust filter 7.

[0020] During the purification of the semi-coke gas, the circulating pump 29 works. After the circulating pump 29 works, the dust reduction liquid in the dust reduction chamber 21 is then circulated out of the circulating pump 29 through the spray hole 32, and the spray dust reduction treatment of the semi-coke gas is realized; The regeneration shaft 4 is provided with a plurality of nitrogen spray holes 5 distributed in a circumferential array, and a spiral lifting piece 6 is installed on the regeneration shaft 4 and at a position corresponding to the inner side of the regeneration tower 2; During the regeneration of the adsorption filter material, the regeneration shaft 4 rotates at a set speed. After the regeneration shaft 4 rotates, the spiral lifting piece 6 continuously lifts the blue carbon gas treatment adsorption filter material upward; The regeneration tower 2 is connected to two symmetrically arranged adsorption purification modules; The adsorption purification module includes a filter material return pipe 8 and a filter material discharge pipe 9, both of which are connected to the inner cavity of the regeneration tower 2, and an adsorption cylinder 10 is rotatably connected between the filter material return pipe 8 and the filter material discharge pipe 9, and the adsorption cylinder 10 is filled with adsorption filter material, and the outer side of the adsorption cylinder 10 is coated with a nitrogen retention membrane 11; The nitrogen interception membrane 11 is provided so as to intercept the nitrogen on the adsorption cylinder 10; The adsorption tube 10 is made of breathable material; Adsorption filter material is used for purification and adsorption of impurities in semi-coke gas; A clean air discharge cylinder 12 is rotatably sleeved on the adsorption cylinder 10, and a feed shaft 13 is rotatably connected to the inner wall of the filter material return pipe 8. A spiral feed sheet 14 that fits the adsorption cylinder 10 is installed on the feed shaft 13. A flow channel 15 connected to the spray dust reduction component is provided in the feed shaft 13. A plurality of regularly distributed air holes 16 connected to the flow channel 15 are provided on the feed shaft 13. The top of the air filter cylinder 23 is connected to two air supply pipes 25, which are respectively connected to the two flow distribution channels 15 in a rotatable manner, and a second heating jacket 26 is installed on the two air supply pipes 25; During the regeneration of the adsorbent filter material, the spiral lower material sheet 14 rotates at a set speed and transports the adsorbent filter material downward; During the purification of the semi-coke gas, the second heating jacket 26 is operated to dry the gas after dust reduction and dust filtration, so as to reduce the moisture in the semi-coke gas. The gas discharge pipe 17 is connected to the clean gas discharge tube 12. A one-way gas outlet valve is provided at the connection point between the gas discharge pipe 17 and the clean gas discharge tube 12. Through the setting of the one-way gas outlet valve, one-way exhaust from the clean gas discharge tube 12 to the gas discharge pipe 17 is achieved. The driving module is used to drive the regeneration shaft 4, the adsorption cylinder 10 and the unloading shaft 13. The regeneration shaft 4 is driven by the driving module and moves back and forth along the axis direction of the regeneration tower 2; The driving module includes a motor 33 mounted on the carrier 18 and a vibration table 34 slidably connected to the carrier 18. The inner wall of the carrier 18 is rotatably connected to an air guide shaft 35. The output shaft end of the motor 33 and the air guide shaft 35 are both mounted with first bevel gears, and the two first bevel gears are meshed with each other. The regeneration shaft 4 is rotatably connected to the vibration table 34 through a bearing, and a coupling shaft 40 groove with two ends opened is provided on the top of the regeneration shaft 4. The regeneration shaft 4 is slidably connected to the coupling shaft 40 groove, and the external shape of the regeneration shaft 4 and the cross section of the coupling shaft 40 groove are both regular polygons; Through the external shape of the regeneration shaft 4 and the regular polygonal cross-section of the coupling shaft 40 groove, when the vibration table 34 moves back and forth along the axis direction of the regeneration tower 2, the air guide shaft 35 can continuously drive the regeneration shaft 4; The driving module also includes an inner gear ring 36 mounted on the regeneration shaft 4, and a driven gear 37 is mounted on the unloading shaft 13, and the driven gear 37 is transmission-connected to the inner gear ring 36; The tooth height of the inner gear ring 36 is 8 times the tooth height of the driven gear 37; Each filter material discharge pipe 9 is rotatably connected to a differential shaft 38, which is transmission-connected to the discharge shaft 13 through a chain belt, and a differential gear 39 is installed on the bottom end of the differential shaft 38 and the adsorption cylinder 10, and the two differential gears 39 are meshed with each other; During the regeneration of the adsorption filter material, the adsorption cylinder 10 is rotated by the structure setting so that the adsorption cylinder 10 circulates in the direction of the gas discharge; The driving module also includes a coupling 40 rotatably connected to the carrier 18, a second bevel gear is installed on the coupling 40, the second bevel gear is drivingly connected to the first bevel gear on the air guide shaft 35, a bump 41 is installed on the coupling 40, a vibration transmission wheel 42 that is adaptively connected to the bump 41 is rotatably connected to the vibration table 34, and a group of reset springs 43 are installed between the vibration table 34 and the carrier 18.

[0021] During the regeneration of the adsorbed filter material, the convex block 41, the reset spring 43 and the vibration wheel 42 are arranged so that the vibration table 34 moves back and forth within the set stroke. After the vibration table 34 moves back and forth within the set stroke, the spiral lifting piece 6 and the spiral dust filter piece 7 are driven to vibrate back and forth. The filter material lifted by the spiral lifting piece 6 can be dispersed by the vibration of the adsorbed filter material, so as to effectively improve the regeneration effect and regeneration rate of the adsorbed filter material. The nitrogen supply module is used to supply nitrogen to the nitrogen spray holes 5 .

[0022] The nitrogen supply module includes a nitrogen storage tank 44, which is fixedly connected to the carrier 18. The gas outlet port of the nitrogen storage tank 44 is connected to the nitrogen supply pipe 45. A nitrogen distribution channel is fixedly opened on the regeneration shaft 4. The gas outlet port of the nitrogen supply pipe 45 is connected to the nitrogen distribution channel. Each nitrogen nozzle 5 is connected to the nitrogen distribution channel. A third heating jacket 46 is provided on the nitrogen supply pipe 45. A temperature probe 47 is installed in the nitrogen supply pipe 45. The data end of the temperature probe 47 is connected to the data of the single-chip computer 19.

[0023] The nitrogen spray hole 5 is arranged to be inclined downward, and the angle between the axis of the nitrogen spray hole 5 and the horizontal plane is 45°.

[0024] The working principle and use process of the present invention are as follows: when the semi-coke gas is processed normally, the motor 33 is turned off, the circulating pump 29 is working, the gas inlet pipe 22 and the gas exhaust pipe 17 are both turned on, and the semi-coke gas to be processed is fed in through the gas inlet pipe 22, and the fed semi-coke gas first enters the dust reduction chamber 21 for dust reduction processing, and after the dust reduction processing is completed, the semi-coke gas is filtered by the spiral dust filter 7, and the semi-coke gas after the dust filtering processing is completed is subjected to adsorption and purification processing by the adsorption filter material in the adsorption cylinder 10, and the gas after the adsorption and purification processing is completed is discharged through the gas exhaust pipe 17; When it is necessary to regenerate the adsorption filter material, the motor 33 is turned on, the gas inlet pipe 22 and the gas exhaust pipe 17 are both closed, the spiral lower sheet 14 discharges the adsorption filter material in the adsorption cylinder 10 to the regeneration tower 2, the nitrogen storage tank 44 sends 170° high-temperature nitrogen into the regeneration tower 2, the first heating jacket 3 heats the adsorption filter material to 180°, and the nitrogen is high-pressure distributed to the adsorption filter material in the regeneration tower 2, thereby realizing the regeneration of the adsorption filter material and the refilling of the regenerated adsorption filter material in the adsorption cylinder 10. After the filter material treatment is completed, the exhaust filter tube 20 extracts the nitrogen remaining in the device, thereby completing the regeneration of the adsorption filter material. After the adsorption filter material is regenerated, the adsorption purification treatment of the gas can be repeated.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adsorption purification device for semi-coke gas, comprising a spray tower (1), characterized in that: Also includes: A spray dust reduction component is arranged in the spray tower (1) and is used for spray dust reduction of blue coal gas; A regeneration tower (2), wherein a first heating jacket (3) is installed on the regeneration tower (2), a regeneration shaft (4) is installed inside the regeneration tower (2), a plurality of groups of nitrogen spray holes (5) distributed in a circular array are provided on the regeneration shaft (4), a spiral lifting sheet (6) is installed on the regeneration shaft (4) at a position corresponding to the inner side of the regeneration tower (2), a spiral dust filter sheet (7) is installed on the regeneration shaft (4) at a position corresponding to the inner side of the spray tower (1), and the regeneration tower (2) is connected to two symmetrically arranged adsorption purification modules; The adsorption purification module comprises a filter material return pipe (8) and a filter material discharge pipe (9), the filter material return pipe (8) and the filter material discharge pipe (9) are both connected to the inner cavity of the regeneration tower (2), an adsorption cylinder (10) is rotatably connected between the filter material return pipe (8) and the filter material discharge pipe (9), the adsorption cylinder (10) is filled with adsorption filter material, the outer side of the adsorption cylinder (10) is coated with a nitrogen retention membrane (11), a clean air discharge cylinder (12) is rotatably sleeved on the adsorption cylinder (10), a feed shaft (13) is rotatably connected to the inner wall of the filter material return pipe (8), a spiral feed sheet (14) fitted with the adsorption cylinder (10) is installed on the feed shaft (13), a flow distribution channel (15) connected to a spray dust reduction component is provided in the feed shaft (13), and a plurality of groups of regularly distributed gas distribution holes (16) connected to the flow distribution channel (15) are provided on the feed shaft (13); A gas discharge pipe (17) connected to the clean gas discharge tube (12); A driving module, used to drive the regeneration shaft (4), the adsorption cylinder (10) and the unloading shaft (13), wherein the regeneration shaft (4) is driven by the driving module and moves back and forth along the axis direction of the regeneration tower (2); The nitrogen supply module is used to supply nitrogen to the nitrogen spray hole (5).

2. The adsorption purification device for blue coal gas according to claim 1, characterized in that: The invention also comprises a carrier (18), the carrier (18) being fixedly connected to the spray tower (1) and the regeneration tower (2) respectively, a single chip computer (19) being mounted on the carrier (18), a suction filter pipe (20) being connected to the bottom of the regeneration tower (2), a guide pipe being provided between the spray tower (1) and the suction filter pipe (20), a guide shaft being provided in the guide pipe, the radius of the guide shaft being 1.05 times the radius of the regeneration shaft (4).

3. The adsorption purification device for blue coal gas according to claim 1, characterized in that: The spray dust reduction component comprises a dust reduction chamber (21) opened in the spray tower (1); a gas inlet pipe (22) connected to the dust reduction chamber (21) is installed on the top surface of the spray tower (1); a gas outlet port of the gas inlet pipe (22) extends to the inside of the dust reduction chamber (21); a gas filter cartridge (23) adapted to the spiral dust filter (7) is provided on the top surface of the spray tower (1); the bottom end of the gas filter cartridge (23) is connected to the dust reduction chamber (21); the spiral dust filter (7) 7) is fitted with an air filter cartridge (23), the spiral dust filter sheet (7) is evenly distributed with vertically arranged air filter holes (24), the top of the air filter cartridge (23) is connected with two air supply pipes (25), the two air supply pipes (25) are respectively connected to the two branch flow channels (15) in a rotatable manner, and the two air supply pipes (25) are both installed with a second heating jacket (26), and a group of stirring rods (27) are installed on the regeneration shaft (4) and at a position corresponding to the inner side of the dust reduction chamber (21).

4. The adsorption purification device for blue coal gas according to claim 3 is characterized in that: The spray dust reduction component also includes a drain valve (28) installed on the bottom surface of the spray tower (1) and a liquid replenishing pipe installed on the top surface of the spray tower (1); the drain valve (28) and the liquid replenishing pipe are both connected to the dust reduction chamber (21); the dust reduction chamber (21) is connected to a circulation pump (29); the liquid outlet port of the circulation pump (29) is connected to a pump liquid pipe (30); a spray flow channel (31) with an opening at the bottom end is fixedly provided on the regeneration shaft (4); the liquid outlet end of the pump liquid pipe (30) is slidably connected to the spray flow channel (31); and a plurality of groups of regularly distributed spray holes (32) are provided on the regeneration shaft (4) and at positions corresponding to the spiral dust filter plate (7).

5. The adsorption purification device for blue coal gas according to claim 1, characterized in that: The driving module comprises a motor (33) mounted on a carrier (18) and an oscillating table (34) slidably connected to the carrier (18); an air guide shaft (35) is rotatably connected to the inner wall of the carrier (18); first bevel gears are mounted on the output shaft end of the motor (33) and the air guide shaft (35); the two first bevel gears are meshed with each other; the regeneration shaft (4) is rotatably connected to the oscillating table (34) via a bearing; a coupling shaft (40) groove with openings at both ends is formed at the top of the regeneration shaft (4); the regeneration shaft (4) is slidably connected to the coupling shaft (40) groove; and the external shape of the regeneration shaft (4) and the cross-section of the coupling shaft (40) groove are both regular polygons.

6. The adsorption purification device for blue coal gas according to claim 5, characterized in that: The driving module also includes an inner gear ring (36) mounted on the regeneration shaft (4); a driven gear (37) is mounted on the discharge shaft (13); the driven gear (37) is drivingly connected to the inner gear ring (36); each of the filter material discharge pipes (9) is rotatably connected to a differential shaft (38); the differential shaft (38) is drivingly connected to the discharge shaft (13) via a chain belt; a differential gear (39) is mounted on the bottom end of the differential shaft (38) and the adsorption cylinder (10); the two differential gears (39) are meshed with each other.

7. The adsorption purification device for blue coal gas according to claim 6, characterized in that: The tooth height of the inner gear ring (36) is 7 to 10 times the tooth height of the driven gear (37).

8. The adsorption purification device for blue coal gas according to claim 5, characterized in that: The driving module further comprises a coupling shaft (40) rotatably connected to the carrier (18); a second bevel gear is mounted on the coupling shaft (40); the second bevel gear is drivingly connected to a first bevel gear on the air guide shaft (35); a protrusion (41) is mounted on the coupling shaft (40); a vibration transmission wheel (42) adapted to be connected to the protrusion (41) is rotatably connected to the vibration table (34); and a group of return springs (43) are mounted between the vibration table (34) and the carrier (18).

9. The adsorption purification device for blue coal gas according to claim 2, characterized in that: The nitrogen supply module comprises a nitrogen storage tank (44), the nitrogen storage tank (44) is fixedly connected to the carrier (18), the outlet port of the nitrogen storage tank (44) is connected to a nitrogen supply pipe (45), a nitrogen distribution flow channel is fixedly opened on the regeneration shaft (4), the outlet port of the nitrogen supply pipe (45) is connected to the nitrogen distribution flow channel, each of the nitrogen spray holes (5) is connected to the nitrogen distribution flow channel, a third heating jacket (46) is provided on the nitrogen supply pipe (45), a temperature probe (47) is installed in the nitrogen supply pipe (45), and a data end of the temperature probe (47) is connected to the single-chip computer (19).

10. The adsorption purification device for blue coal gas according to claim 9, characterized in that: The nitrogen spray hole (5) is arranged to be inclined downward, and the angle between the axis of the nitrogen spray hole (5) and the horizontal plane is 45°.

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