Tail gas denitration reactor for hydrogenation catalyst production

Abstract

The invention relates to the technical field of tail gas treatment, and provides a tail gas denitration reactor for hydrogenation catalyst production, the tail gas denitration reactor comprises a treatment box and an adsorption shell mounted in the treatment box, one end of the adsorption shell is connected with a gas inlet pipe, the other end of the gas inlet pipe is connected with a gas outlet pipe, and two ends of the adsorption shell are provided with a plurality of connecting grooves; the upper end of the adsorption shell is connected with a first connecting frame and a second connecting frame. The two ends of the first gas filtering bin and the two ends of the second gas filtering bin are meshed and installed on the gear shaft, so that the gear shaft drives the first gas filtering bin and the second gas filtering bin to rotate, the first gas filtering bin and the second gas filtering bin alternately conduct tail gas adsorption work, and in the standby replacement process, the filter elements in the first gas filtering bin and the second gas filtering bin are cleaned; the device can adsorb tail gas in a long-term and high-quality mode, the problems that the filter element is blocked and the adsorption effect is reduced due to long-time use of the filter element are solved, and environment-friendly emission of the tail gas can be achieved in the hydrogenation catalyst production and manufacturing process.

Description

Technical Field

[0001] The present invention relates to the technical field of tail gas treatment, in particular to a tail gas denitration reactor for hydrogenation catalyst production. Background Art

[0002] A hydrogenation catalyst refers to a catalyst used when a compound is added with hydrogen. During the production of the hydrogenation catalyst, a large amount of flue gas containing nitrogen oxides will be generated. In order to prevent environmental pollution, the flue gas generated by the production of the hydrogenation catalyst needs to be treated in a dedicated tail gas denitrification reactor to remove as much nitrogen oxides as possible from the flue gas.

[0003] Due to the small space of some exhaust gas denitrification reactors and the low temperature of the exhaust gas, there are long-term phenomena such as insufficient decomposition and deposition and crystallization of by-products. If the catalyst cannot be quickly and conveniently loaded and replaced, the filter element inside the exhaust gas adsorption device is not easy to replace and clean. The filter element is prone to clogging after long-term use, which will seriously affect the working efficiency of the denitrification reactor, and then lead to problems such as low efficiency and high cost of the denitrification reactor. The treatment efficiency and purification effect of the exhaust gas will gradually decrease, and the filter element needs to be replaced periodically or removed for manual cleaning. In addition, most of the existing exhaust gas adsorption denitrification reactors are fixed structures and cannot be easily disassembled, which is very inconvenient for later maintenance.

[0004] Therefore, we have made improvements to this problem and proposed a tail gas denitrification reactor for hydrogenation catalyst production. Summary of the Invention

[0005] (1) The technical problems to be solved by the present invention are: low treatment efficiency and poor purification effect. Most of the existing tail gas adsorption denitrification reactors are fixed structures and cannot be easily disassembled or maintained in time.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose of the invention, the present invention provides a tail gas denitrification reactor for hydrogenation catalyst production, comprising a treatment box and an adsorption shell installed inside the treatment box, one end of the adsorption shell is connected to an air inlet pipe, and the other end of the air inlet pipe is connected to an air outlet pipe, and a plurality of connecting grooves are provided at both ends of the adsorption shell, and the upper end of the adsorption shell is connected to a first connecting frame and a second connecting frame, and the top ends of the first connecting frame and the second connecting frame are welded and fixed to the treatment box, and the interior of the adsorption shell is installed with a first air filter bin and a second air filter bin that are meshed with each other, and the bottom of the second air filter bin is connected to a gear shaft, and the gear shaft runs through the interior of the adsorption shell, and both ends of the first air filter bin and the second air filter bin are connected to a telescopic frame, and the telescopic frame is installed inside the connecting groove.

[0008] Among them, the adsorption shell includes a shell, both sides of the shell are hollowed out with grooves, and a front plate is installed at one end of the shell, the middle of the front plate is hollowed out with air outlet holes, and a rear plate is installed at the other end of the shell, and two air inlets are symmetrically opened in the middle of the rear plate.

[0009] In which, the first air filter bin includes a semi-cylindrical shell and a semi-circular mesh plate, both ends of the semi-cylindrical shell are equipped with end covers, the end covers are sleeved with the ends of the shell, and the end cover close to the rear plate is provided with a central right circular hole, and when the semi-circular mesh plate is located inside the adsorption shell, the circular hole on the end cover is aligned with the air inlet, and telescopic rods are connected to both ends of the semi-cylindrical shell and the semi-circular mesh plate, a filter housing is installed in the middle of the semi-cylindrical shell and the semi-circular mesh plate, an air inlet hopper is installed at one end of the filter housing close to the rear plate, a filter membrane is installed in the middle of the filter housing, a cleaning groove is provided on one side of the filter housing, a dust cleaning mechanism is installed inside the cleaning groove, and the outer end of the filter membrane is passed through the middle of the dust cleaning mechanism.

[0010] Among them, the cleaning mechanism includes a first scraper and a second scraper that are symmetrical in an eight-shaped shape. The two ends of the first scraper and the second scraper are rotatably installed on the end face of the cleaning groove. A connecting plate is installed on the side of the first scraper and the second scraper close to the air inlet hopper, and a first spring is connected to the middle of the two connecting plates.

[0011] Wherein, rotation grooves are provided on the circumferential surfaces at both ends of the semi-cylindrical shell and the semi-circular mesh plate.

[0012] Among them, the telescopic frame includes an L-shaped buckle, which is sleeved into the inside of the rotating groove, and the buckle is vertically connected to a sliding rod, which is sleeved into the inside of the connecting groove. The upper end of the buckle is connected to a second spring, and the end of the second spring is connected to a fixed block, and the fixed block is fixedly installed with the adsorption shell.

[0013] Wherein, an equilateral triangle scraper is provided in the middle of each of the first scraper and the second scraper, and the long sides of the scraper are closely attached to the surface of the filter membrane.

[0014] Wherein, the first air filter bin and the second air filter bin are installed side by side on both sides of the shell.

[0015] Wherein, a pin is connected to the hinged portion of the second connecting frame and the adsorption shell, and a plug is installed at the end of the pin.

[0016] (3) Beneficial effects

[0017] The tail gas denitration reactor for hydrogenation catalyst production provided by the present invention has the following beneficial effects:

[0018] 1. Install the first air filter chamber and the second air filter chamber in the middle of the adsorption shell; the two ends of the first air filter chamber and the second air filter chamber are meshed and installed with the gear shaft, so that the gear shaft drives the first air filter chamber and the second air filter chamber to rotate, so that the first air filter chamber and the second air filter chamber alternately perform the exhaust gas adsorption work, and clean the internal filter element during the replacement standby process, so that the device can perform exhaust gas adsorption for a long time and with high quality, avoiding the problem of filter element clogging and reduced adsorption effect caused by long-term use of the filter element, and will not be affected by stopping the exhaust gas treatment when replacing the filter element.

[0019] 2. A telescopic frame is connected to both ends of the first air filter bin and the second air filter bin, and a clip is installed on the outer circumference of the semi-cylindrical shell and the semi-circular mesh plate, and a sliding rod is connected to the clip, so that the sliding rod is connected to the adsorption shell through the second spring, so that when the sliding rod slides out of the connecting groove, the semi-circular mesh plate is pushed outward, and when the sliding rod slides into the connecting groove, the semi-circular mesh plate is pulled back outward, so that the installation and disassembly of the first air filter bin and the second air filter bin are more stable, and the first air filter bin and the second air filter bin are avoided from being misaligned, which is convenient for cleaning the filter housing and the filter membrane inside the filter housing, and the accumulation of particulate pollutants affecting the adsorption effect is avoided. The second connecting frame and the adsorption shell are connected by a pin, so that the adsorption shell can be installed and disassembled around the second connecting frame in the treatment box, so that the device can be stably connected to the exhaust pipe.

[0020] 3. By arranging a filter shell inside the semi-cylindrical shell and the semi-circular mesh plate, and arranging a vortex filter membrane inside the filter shell, the exhaust gas introduced into the air inlet pipe is diffused outward from the center of the filter membrane in sequence, thereby increasing the adsorption strength of the exhaust gas. A cleaning groove is opened on one side of the filter shell, and a cleaning mechanism is installed inside the cleaning groove. One end of the filter membrane is extended from the cleaning groove and clamped in the middle of the cleaning mechanism, so that the inlet and outlet filter membranes are repeatedly scraped by the cleaning mechanism, and the particulate pollutants adsorbed on the surface of the filter membrane are cleaned out of the outside of the filter shell, so that the device does not need to be repeatedly disassembled and cleaned, maintenance is simple, and a high purification effect can be maintained for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is an overall schematic diagram of a tail gas denitration reactor for hydrogenation catalyst production provided in this application;

[0023] Figure 2This is a schematic diagram of the internal structure of a tail gas denitrification reactor for hydrogenation catalyst production provided in this application;

[0024] Figure 3 This is a schematic diagram of an expanded tail gas denitration reactor for hydrogenation catalyst production provided in this application;

[0025] Figure 4 A cross-sectional view of a tail gas denitration reactor for hydrogenation catalyst production provided in this application;

[0026] Figure 5 A schematic diagram of an adsorption shell of a tail gas denitration reactor for hydrogenation catalyst production provided in this application;

[0027] Figure 6 This is a schematic diagram of the installation of the first and second air filter bins, telescopic frame, and gear shaft of a tail gas denitrification reactor for hydrogenation catalyst production provided in this application;

[0028] Figure 7 This is a schematic diagram of the explosion of the first gas filter bin of a tail gas denitrification reactor for hydrogenation catalyst production provided in this application;

[0029] Figure 8 This is a schematic diagram of a filter housing for a tail gas denitrification reactor for hydrogenation catalyst production provided in this application;

[0030] Figure 9 A schematic diagram of a ash cleaning mechanism for a tail gas denitrification reactor for hydrogenation catalyst production provided in this application;

[0031] Figure 10 A schematic diagram of a telescopic frame of a tail gas denitrification reactor for hydrogenation catalyst production provided in this application;

[0032] Figure 11 for Figure 3 Schematic diagram of the structure;

[0033] Figure 12 for Figure 7 Schematic diagram of the structure.

[0034] In the figure: 1. adsorption shell; 11. shell; 12. front plate; 13. rear plate; 14. air inlet; 15. air outlet; 2. air inlet pipe; 3. air outlet pipe; 4. first connecting frame; 5. second connecting frame; 6. first air filter chamber; 61. semi-cylindrical shell; 62. semi-circular mesh plate; 63. filter shell; 64. air inlet hopper; 65. cleaning trough; 66. filter membrane; 67. dust cleaning mechanism; 671. first scraper; 672. second scraper; 673. connecting plate; 674. first spring; 68. end cover; 69. telescopic rod; 610. rotating groove; 7. second air filter chamber; 8. telescopic frame; 81. buckle; 82. slide rod; 83. second spring; 84. fixing block; 9. connecting groove; 10. gear shaft; 101. processing box. DETAILED DESCRIPTION

[0035] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0036] like Figures 1-12 As shown, this embodiment proposes a tail gas denitrification reactor for hydrogenation catalyst production, including a treatment box 101 and an adsorption shell 1 installed inside the treatment box 101, one end of the adsorption shell 1 is connected to an air inlet pipe 2, and the other end of the air inlet pipe 2 is connected to an air outlet pipe 3, and a plurality of connection grooves 9 are opened at both ends of the adsorption shell 1, and the upper end of the adsorption shell 1 is connected to a first connecting frame 4 and a second connecting frame 5, and the top ends of the first connecting frame 4 and the second connecting frame 5 are welded and fixed to the treatment box 101, and the first connecting frame 4 and the second connecting frame 5 are installed at the front and rear ends of the adsorption shell 1, and the adsorption shell 1 is fixed to the treatment box 101, so as to facilitate the hydrogenation catalyst connected to the treatment box 101. The tail gas pipe of the production equipment is connected to this device. The interior of the adsorption shell 1 is equipped with a first air filter bin 6 and a second air filter bin 7 that are meshed with each other. The bottom of the second air filter bin 7 is connected to a gear shaft 10. The gear shaft 10 runs through the interior of the adsorption shell 1 and is connected to the external motor shaft. The second air filter bin 7 is driven to rotate by the gear shaft 10, so that the first air filter bin 6 and the second air filter bin 7 are driven synchronously, the first air filter bin 6 is turned inward, and the second air filter bin 7 is turned outward, and the adsorption work of the first air filter bin 6 and the second air filter bin 7 is performed alternately. Both ends of the first air filter bin 6 and the second air filter bin 7 are connected with a telescopic frame 8, which is installed inside the connecting groove 9.

[0037] The adsorption shell 1 includes a shell 11, both sides of the shell 11 are hollowed out with grooves, and a front plate 12 is installed at one end of the shell 11, and the middle part of the front plate 12 is hollowed out with an air outlet 15, and the other end of the shell 11 is installed with a rear plate 13, and the middle part of the rear plate 13 is symmetrically provided with two air inlets 14, and the two ends of the shell 11 are connected to the air inlet pipe 2 and the air outlet pipe 3 through the front plate 12 and the rear plate 13, so that the first air filter bin 6 and the second air filter bin 7 are installed inside the adsorption shell 1, and the air inlet pipe 2 and the air outlet pipe 3 are connected with the first air filter bin 6 and the second air filter bin 7, and the exhaust gas introduced into the air inlet pipe 2 is adsorbed and purified through the first air filter bin 6 or the second air filter bin 7, and finally discharged from the second air filter bin 7, so as to facilitate the treatment of the exhaust gas.

[0038] The first air filter bin 6 includes a semi-cylindrical shell 61 and a semi-circular mesh plate 62. Both ends of the semi-cylindrical shell 61 are equipped with end covers 68, which are sleeved with the ends of the shell 11. The end cover 68 close to the rear plate 13 is provided with a circular hole in the middle right. When the semi-circular mesh plate 62 is located inside the adsorption shell 1, the circular hole on the end cover 68 is aligned with the air inlet 14. The semi-cylindrical shell 61 and the semi-circular mesh plate 62 are connected at both ends with a telescopic rod 69. The middle of the semi-cylindrical shell 61 and the semi-circular mesh plate 62 is equipped with a filter housing 63. An air inlet hopper 64 is installed at one end of the filter housing 63 close to the rear plate 13. A filter membrane 66 is installed in the middle of the filter housing 63. A cleaning groove 65 is provided on one side of the filter housing 63, and a cleaning mechanism 67 is installed inside the cleaning groove 65. The outer end of the filter membrane 66 is passed through the middle of the cleaning mechanism 67. The filter housing 63 is installed inside the semi-cylindrical shell 61 and the semi-circular mesh plate 62, and the filter membrane 66 is installed inside the filter housing 63. The filter membrane 66 and the filter housing 63 can both adsorb and filter particulate pollutants in the exhaust gas, and screen out impurities in the exhaust gas. The clean exhaust gas that meets the standards is filtered through the filter housing 63 and the filter membrane 66, and then passes through the mesh holes of the semi-circular mesh plate 62 into the interior of the adsorption shell 1 and is discharged from the outlet pipe 3 at the other end of the adsorption shell 1.

[0039] The cleaning mechanism 67 includes a first scraper 671 and a second scraper 672 that are symmetrical in an eight-shaped shape. The two ends of the first scraper 671 and the second scraper 672 are rotatably installed on the end face of the cleaning groove 65. A connecting plate 673 is installed on the side of the first scraper 671 and the second scraper 672 close to the air inlet hopper 64. The middle part of the two connecting plates 673 is connected to a first spring 674. The first scraper 671 and the second scraper 672 scrape and wipe the two sides of the filter membrane 66 to clean the surface of the filter membrane 66, so that the filter membrane 66 can restore the adsorption and filtration function, and purify and adsorb the production exhaust gas of the hydrogenation catalyst production equipment for a long time.

[0040] A rotation groove 610 is provided on the circumferential surfaces at both ends of the semi-cylindrical shell 61 and the semi-circular mesh plate 62; the telescopic frame 8 includes an L-shaped buckle 81, which is sleeved into the inside of the rotation groove 610, and the buckle 81 is vertically connected to a sliding rod 82, which is sleeved into the inside of the connecting groove 9, and the upper end of the buckle 81 is connected to a second spring 83, and the end of the second spring 83 is connected to a fixed block 84, which is fixedly installed on the adsorption shell 1.

[0041] An equilateral triangle-shaped scraper is provided in the middle of the first scraper 671 and the second scraper 672, and the long sides of the scraper are closely attached to the surface of the filter membrane 66. The scrapers of the first scraper 671 and the second scraper 672 scrape the surface of the filter membrane 66 to clean the particulate pollutants adsorbed on the filter membrane 66, expose the adsorption surface of the filter membrane 66, and maintain the adsorption performance of the filter membrane 66.

[0042] The first air filter bin 6 and the second air filter bin 7 are installed side by side on both sides of the shell 11. One side of the first air filter bin 6 and the second air filter bin 7 is located inside the shell 11, and the other side is exposed in the hollows on both sides of the shell 11. When the semicircular mesh plate 62 is partially exposed outside the shell 11, the semicircular mesh plate 62 pops out and brings out the filter housing 63, making it easy to clean the filter housing 63.

[0043] The second connecting frame 5 is connected to the hinged part of the adsorption shell 1 with a pin rod, and the end of the pin rod is installed with a plug. The front end of the adsorption shell 1 is fixed to the first connecting frame 4, and the rear end is connected through the pin rod of the second connecting frame 5. The adsorption shell 1 is installed on the processing box 101 and connected to the tail gas pipe of the hydrogenation catalyst production equipment connected to the processing box 101. When the adsorption device needs to be repaired, the pin rod connecting the second connecting frame 5 to the middle part of the adsorption shell 1 is pulled out, and the adsorption shell 1 is rotated out along the first connecting frame 4 to repair or clean the adsorption shell 1.

[0044] Specifically, when the tail gas denitration reactor for hydrogenation catalyst production is in use: a first air filter bin 6 and a second air filter bin 7 are installed in the middle of the adsorption shell 1, and both ends of the first air filter bin 6 and the second air filter bin 7 are connected to a telescopic frame 8, and the first air filter bin 6 and the second air filter bin 7 are connected to the outside of the adsorption shell 1 through the telescopic frame 8, and the end caps 68 at both ends of the first air filter bin 6 are engaged with the same position of the second air filter bin 7, wherein the end caps 68 are engaged with the gear shaft 10, so that the gear shaft 10 drives the first air filter bin 6 and the second air filter bin 7 to rotate synchronously, so that the first air filter bin 6 and the second air filter bin 7 are alternately rotated. Docking with the air inlet 14, when the semicircular mesh plate 62 rotates toward the inside of the adsorption shell 1, the first air filter chamber 6 performs the exhaust gas adsorption operation, and the second air filter chamber 7 remains on standby. The exhaust gas discharged from the hydrogenation catalyst production equipment enters the interior of the adsorption shell 1 through the air inlet pipe 2, and enters the interior of the first air filter chamber 6 along the air inlet 14, and is filtered and dispersed outward from the inside of the filter membrane 66. The pollutants and solid particles in the exhaust gas are adsorbed and filtered through the filter membrane 66 and the filter shell 63. The filtered exhaust gas is discharged through the holes on the semicircular mesh plate 62 and discharged to the inside of the exhaust pipe 3 through the outlet hole 15, and finally The filtered tail gas is discharged, and when the semicircular screen plate 62 rotates toward the outside of the adsorption shell 1, the positions of the second air filter bin 7 and the first air filter bin 6 are swapped. At this time, the second air filter bin 7 performs the adsorption operation of the tail gas, and the first air filter bin 6 remains on standby. The tail gas completes the filtration and adsorption of the above steps through the second air filter bin 7, which does not affect the normal use of the hydrogenation catalyst production equipment. The semi-cylindrical shell 61 and the semi-circular screen plate 62 are connected by a telescopic rod 69. When one side of the semi-circular screen plate 62 is rotated outward and exposed, the telescopic rod 69 separates the semi-cylindrical shell 61 and the semi-circular screen plate 62, and connects the semi-circular screen plate 62 to the filter shell 63 to push out the adsorption. Inside the attached shell 1, the filter membrane 66 inside the filter shell 63 pops outward. During the process of the filter membrane 66 popping out, it passes through the cleaning mechanism 67. The cleaning mechanism 67 scrapes off the particulate pollutants accumulated on both sides of the filter membrane 66, and then pushes the cleaned filter membrane 66 into the filter shell 63; finally, the upper end of the adsorption shell 1 is connected to the processing box 101 through the first connecting frame 4 and the second connecting frame 5, and the second connecting frame 5 and the adsorption shell 1 are connected by a pin, so that the adsorption shell 1 can be installed and disassembled on the processing box 101, so that the device can be stably connected to the exhaust pipe of the hydrogenation catalyst production equipment.

[0045] The above embodiments are intended to illustrate the present invention only and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications, or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention and should be encompassed by the scope of the claims of the present invention.

Claims

1. A tail gas denitrification reactor for hydrogenation catalyst production, comprising a treatment box (101) and an adsorption shell (1) installed inside the treatment box (101), characterized in that: One end of the adsorption shell (1) is connected to an air inlet pipe (2), and the other end of the air inlet pipe (2) is connected to an air outlet pipe (3). A plurality of connecting grooves (9) are provided at both ends of the adsorption shell (1). The upper end of the adsorption shell (1) is connected to a first connecting frame (4) and a second connecting frame (5). The top ends of the first connecting frame (4) and the second connecting frame (5) are welded and fixed to the processing box (101). The interior of the adsorption shell (1) is provided with a first air filter bin (6) and a second air filter bin (7) that mesh with each other. The bottom of the second air filter bin (7) is connected to a gear shaft (10), and the gear shaft (10) runs through the interior of the adsorption shell (1). Both ends of the first air filter bin (6) and the second air filter bin (7) are connected to a telescopic frame (8), and the telescopic frame (8) is installed inside the connecting groove (9).

2. The tail gas denitration reactor for hydrogenation catalyst production according to claim 1, characterized in that: The adsorption shell (1) comprises a shell (11), both sides of the shell (11) are hollowed out to form grooves, and a front plate (12) is installed at one end of the shell (11), and an air outlet (15) is hollowed out in the middle of the front plate (12), and a rear plate (13) is installed at the other end of the shell (11), and two air inlets (14) are symmetrically provided in the middle of the rear plate (13).

3. The tail gas denitration reactor for hydrogenation catalyst production according to claim 1, characterized in that: The first air filter bin (6) comprises a semi-cylindrical shell (61) and a semi-circular screen plate (62), both ends of the semi-cylindrical shell (61) are provided with end covers (68), the end covers (68) are sleeved with the ends of the shell (11), wherein the end cover (68) close to the rear plate (13) is provided with a central right circular hole, and when the semi-circular screen plate (62) is located inside the adsorption shell (1), the circular hole on the end cover (68) is aligned with the air inlet (14), and the semi-cylindrical shell (61) and the semi-circular screen plate (62) are both provided with a circular hole. The ends of the semi-cylindrical shell (61) and the semi-circular mesh plate (62) are connected to a telescopic rod (69), a filter housing (63) is installed in the middle of the semi-cylindrical shell (61) and the semi-circular mesh plate (62), an air inlet hopper (64) is installed at one end of the filter housing (63) close to the rear plate (13), a filter membrane (66) is installed in the middle of the filter housing (63), a cleaning groove (65) is opened on one side of the filter housing (63), a dust cleaning mechanism (67) is installed inside the cleaning groove (65), and the outer end of the filter membrane (66) is passed through the middle of the dust cleaning mechanism (67).

4. The tail gas denitration reactor for hydrogenation catalyst production according to claim 3, characterized in that: The dust cleaning mechanism (67) comprises a first scraper (671) and a second scraper (672) symmetrically arranged in an eight-shaped shape. Both ends of the first scraper (671) and the second scraper (672) are rotatably mounted on the end surface of the cleaning trough (65). A connecting plate (673) is mounted on one side of the first scraper (671) and the second scraper (672) close to the air inlet hopper (64). A first spring (674) is connected to the middle of the two connecting plates (673).

5. The tail gas denitration reactor for hydrogenation catalyst production according to claim 3, characterized in that: Rotation grooves (610) are provided on the circumferential surfaces at both ends of the semi-cylindrical shell (61) and the semi-circular mesh plate (62).

6. The tail gas denitration reactor for hydrogenation catalyst production according to claim 5, characterized in that: The telescopic frame (8) includes an L-shaped buckle (81), the buckle (81) is sleeved with the inside of the rotating groove (610), and the buckle (81) is vertically connected to a sliding rod (82), the sliding rod (82) is sleeved with the inside of the connecting groove (9), the upper end of the buckle (81) is connected to a second spring (83), the end of the second spring (83) is connected to a fixed block (84), and the fixed block (84) is fixedly installed with the adsorption shell (1).

7. The tail gas denitration reactor for hydrogenation catalyst production according to claim 4, characterized in that: An equilateral triangle scraper is provided in the middle of each of the first scraper (671) and the second scraper (672), and the long sides of the scraper are in close contact with the surface of the filter membrane (66).

8. The tail gas denitration reactor for hydrogenation catalyst production according to claim 1, characterized in that: The first air filter bin (6) and the second air filter bin (7) are installed side by side on both sides of the housing (11).

9. The tail gas denitration reactor for hydrogenation catalyst production according to claim 1, characterized in that: A pin is connected to the hinged portion of the second connecting frame (5) and the adsorption shell (1), and a plug is installed at the end of the pin.

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