Medical synthesis tail gas filtering equipment

Abstract

The invention relates to the technical field of filtering equipment, and discloses medicine synthesis tail gas filtering equipment which comprises a base, a fixed cylinder is fixedly mounted on the upper surface of the base and is obliquely arranged, and a gas inlet pipe is fixedly mounted at a port of the higher end of the fixed cylinder. According to the invention, through alternate reciprocating motion of the honeycomb filter element cylinders, the communicating diameters of the honeycomb holes in the adjacent honeycomb filter element cylinders are alternately changed from large to small, at the moment, air blown out of the air outlet pipe also becomes large and small, and through the arrangement, the flow speed of the air is intermittently changed, so that a new sodium hydroxide solution can be fully contacted with tail gas; by means of the device, medicine synthesis tail gas can make full contact with a sodium hydroxide solution for a neutralization reaction, hydrogen chloride gas in the medicine synthesis tail gas is filtered out, and the tail gas filtering effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of filtering equipment, and in particular to a pharmaceutical synthesis tail gas filtering device. Background Art

[0002] In the process of pharmaceutical synthesis, a variety of tail gases are usually produced. These tail gases mainly come from chemical reactions, solvent use and gases emitted during the production process. These gases include hydrogen chloride (HCl). Acidic gases are very harmful to the environment and human health. Long-term inhalation can cause respiratory and eye damage. Pharmaceutical synthesis tail gas filtration equipment is used to treat harmful gases generated in the pharmaceutical process to ensure that the exhaust gas meets environmental standards. Such equipment usually needs to have efficient gas adsorption, decomposition, filtration and purification capabilities to remove toxic, corrosive or irritating chemicals.

[0003] The existing pharmaceutical synthesis tail gas filtration equipment (Announcement No.: CN209138261U) has at least the following disadvantages: When the above patent is in use, the exhaust gas enters the bottom of the cavity from the air duct and is treated by the exhaust gas treatment liquid in the cavity. The stirring blades can evenly stir the exhaust gas treatment liquid during the treatment process to achieve continuous operation of exhaust gas treatment. The exhaust gas in the above patent is directly introduced into the exhaust gas treatment liquid. The exhaust gas stays in the exhaust gas treatment liquid for too short a time, resulting in incomplete reaction between the exhaust gas and the exhaust gas treatment liquid, which causes the exhaust gas to be unable to be completely filtered out, affecting the exhaust gas filtration effect. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a pharmaceutical synthesis tail gas filtering device.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A pharmaceutical synthesis tail gas filtering device comprises a base, wherein a fixed cylinder is fixedly installed on the upper surface of the base, the fixed cylinder is inclined, an air inlet pipe is fixedly installed on a higher end port of the fixed cylinder, and an air outlet pipe is fixedly installed on a lower end port of the fixed cylinder, honeycomb baffles are fixedly installed on the inner walls near both ends of the fixed cylinder, a plurality of honeycomb filter cartridges are rotatably installed on the inner wall of the fixed cylinder, the end faces of two adjacent honeycomb filter cartridges are arranged flush with each other, a plurality of rows of honeycomb holes are evenly penetrated through the end faces of the honeycomb filter cartridges, a plurality of guide grooves are provided on the end faces at opposite ends of the honeycomb filter cartridges, and a plurality of the guide grooves are respectively connected with the plurality of rows of honeycomb holes, a plurality of driving plates are fixedly installed on the circumferential outer surfaces of the plurality of honeycomb filter cartridges, a plurality of openings are equidistantly penetrated through the circumferential outer surface of the fixed cylinder, and the driving plate is slidably installed through the openings and on its inner wall.

[0006] As a further solution of the present invention, two support blocks are symmetrically fixedly installed on the circumferential outer surface of the fixed cylinder near the opening, a crankshaft is rotatably installed between the two support blocks, a plurality of curved necks are provided on the outer surface of the crankshaft, and the plurality of curved necks are alternately and symmetrically arranged, a driving groove is penetrated through the outer surface of the driving plate, the curved neck is slidably installed on the inner wall of the driving groove, a driving motor is fixedly installed on the outer surface of one side of one of the support blocks, and the output end of the driving motor penetrates the outer surface of the support block and is fixedly installed on the rotation center of the crankshaft.

[0007] As a further scheme of the present invention, a plurality of guide plates are fixedly installed at equal intervals on the upper surface of the fixed cylinder, a plurality of through holes are evenly and evenly opened on the inner walls of the plurality of guide plates, the through holes are connected to the guide groove, a mounting groove is opened on the top of the guide plate, a liquid inlet roller is rotatably installed between the inner walls at opposite ends of the mounting groove, a plurality of liquid inlet holes are equidistantly opened on the circumferential outer surface of the liquid inlet roller, the liquid inlet holes are connected to the guide groove through the through holes, a liquid storage tank is fixedly installed on the top of the plurality of guide plates, a plurality of flow grooves are equidistantly opened on the bottom wall of the liquid storage tank, and the plurality of flow grooves are connected to the plurality of mounting grooves.

[0008] As a further solution of the present invention, both ends of the liquid inlet roller are penetrated through the outer surface of the guide plate and are fixedly installed with a swing rod, the bottom end of the swing rod is rotatably installed with a driving rod, the end of the driving rod close to the air outlet pipe is fixedly installed with a connecting rod, the outer surface of the connecting rod is rotatably installed with a first connecting rod, the bottom end of the first connecting rod is rotatably installed with a fixed rod, and a support is fixedly installed on the end surface of the air outlet pipe close to the fixed rod.

[0009] As a further scheme of the present invention, a blowing plate is fixedly installed on the bottom end of the fixing rod, an air storage groove is provided on the outer surface in the middle position of one side of the blowing plate, a plurality of notches are equidistantly provided in the circumferential direction of the outer surface of one side of the blowing plate, an opening and closing plate is slidably installed on the inner walls of the plurality of notches, a plurality of sink grooves are equidistantly provided in the circumferential direction of the blowing plate close to the outer surface of the air storage groove, the sink grooves are connected with the air storage groove, a plurality of piston plates are slidably installed on the inner walls of the sink grooves, a sliding column is fixedly installed on the outer surface of the piston plate, the other end of the sliding column passes through the inner wall of the notch and is fixedly installed on the outer surface of the opening and closing plate, a spring is sleeved on the outer surface of the sliding column, and the spring is arranged inside the sink groove, a sealing plate is fixedly installed on the outer surface of one side of the blowing plate, an air inlet and outlet valve is provided on the outer surface of the sealing plate, and the air inlet and outlet valve are connected with the air storage tank.

[0010] As a further solution of the present invention, a limiting sleeve is fixedly installed on the outer surface of the air outlet pipe close to the support, and a square limiting slide rod is slidably inserted into the inner wall of the limiting slide rod, one end of the square limiting slide rod is abutted against the outer surface of the fixed rod, and a second connecting rod is rotatably installed on the other end of the square limiting slide rod, and a connecting column is rotatably installed on the top end of the second connecting rod, and a floating block is arranged inside the liquid storage tank, and the top end of the floating block passes through the upper surface of the liquid storage tank and is slidably installed therewith, and a connecting plate is fixedly installed on the top end of the floating block, and the top end of the connecting column is fixedly connected to the lower surface of the connecting plate.

[0011] As a further solution of the present invention, a liquid outlet is provided through the outer surface of the air outlet pipe near the bottom, the blowing plate is arranged at the middle position of the air outlet end of the air outlet pipe, and a liquid filling port is arranged on the upper surface of the liquid storage tank.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. After passing through the inner wall of the honeycomb hole, the pharmaceutical synthesis tail gas will react with the sodium hydroxide solution for neutralization. With the continuous entry of new sodium hydroxide solution, the neutralization reaction is continuously carried out to neutralize the hydrogen chloride gas inside the pharmaceutical synthesis tail gas. Due to the alternating reciprocating motion of the honeycomb filter cartridge, the diameter of the honeycomb holes on the adjacent honeycomb filter cartridges changes alternately from large to small. At this time, the wind blown out from the outlet pipe will also change from large to small. By setting the intermittent change of the wind flow rate, the new sodium hydroxide solution can fully contact with the tail gas. Through this device, the pharmaceutical synthesis tail gas can fully contact with the sodium hydroxide solution for neutralization reaction, and the hydrogen chloride gas inside the pharmaceutical synthesis tail gas is filtered out, thereby improving the tail gas filtration effect; 2. When the floating block descends, it will drive the connecting column to descend. The connecting column drives the square limit slide bar to slide out of the limit slide sleeve through the second connecting rod. At this time, the top of the fixed rod will collide with the end of the square limit slide bar and make a sound when it swings. This device reminds the operator that the sodium hydroxide solution inside the liquid storage tank is insufficient and new sodium hydroxide solution needs to be added. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a pharmaceutical synthesis tail gas filtration device proposed by the present invention; Figure 2 This is a rear structural schematic diagram of a pharmaceutical synthesis tail gas filtration device proposed by the present invention; Figure 3 This is a left-side structural schematic diagram of a pharmaceutical synthesis tail gas filtration device proposed by the present invention; Figure 4 This is a schematic diagram of the top view of a pharmaceutical synthesis tail gas filtration device proposed by the present invention; Figure 5A schematic diagram of a liquid inlet roller of a pharmaceutical synthesis tail gas filtering device proposed by the present invention; Figure 6 This is a schematic diagram of an outlet pipe of a pharmaceutical synthesis tail gas filtration device proposed by the present invention; Figure 7 A schematic diagram of a blowing plate of a pharmaceutical synthesis tail gas filtering device proposed by the present invention; Figure 8 This is a schematic diagram of a honeycomb filter cartridge of a pharmaceutical synthesis tail gas filtration device proposed by the present invention; Fig. 9 A schematic cross-sectional view of a pharmaceutical synthesis tail gas filtration device proposed by the present invention Fig.10 for Figure 1 A partial enlarged schematic diagram in the middle.

[0014] In the figure: 1, base; 2, fixed cylinder; 3, air inlet pipe; 4, air outlet pipe; 401, liquid outlet; 5, liquid storage tank; 6, guide plate; 7, honeycomb baffle; 8, blowing plate; 801, opening and closing plate; 802, air storage tank; 803, piston plate; 804, sink; 805, spring; 806, sliding column; 9, fixed rod; 901, support; 10, first connecting rod; 11, connecting rod; 12, driving rod; 1 3. Swing rod; 14. Liquid inlet roller; 15. Limiting sleeve; 16. Square limiting slide rod; 17. Second connecting rod; 18. Connecting column; 19. Connecting plate; 20. Floating block; 21. Honeycomb filter cartridge; 2101. Driving plate; 2102. Driving groove; 2103. Honeycomb hole 2103; 2104. Guide groove; 2105. Opening; 2106. Crankshaft; 22. Support block; 23. Driving motor. DETAILED DESCRIPTION

[0015] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0016] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] Reference Figure 1-Figure 10 A pharmaceutical synthesis tail gas filtering device comprises a base 1, a fixed cylinder 2 is fixedly installed on the upper surface of the base 1, the fixed cylinder 2 is tilted, an air inlet pipe 3 is fixedly installed on the higher end port of the fixed cylinder 2, and an air outlet pipe 4 is fixedly installed on the lower end port of the fixed cylinder 2, honeycomb baffles 7 are fixedly installed on the inner walls near both ends of the fixed cylinder 2, a plurality of honeycomb filter cartridges 21 are rotatably installed on the inner wall of the fixed cylinder 2, the end faces of two adjacent honeycomb filter cartridges 21 are arranged flat against each other, a plurality of rows of honeycomb holes 2103 are evenly penetrated through the end faces of the honeycomb filter cartridges 21, a plurality of guide grooves 2104 are opened on the end faces at opposite ends of the honeycomb filter cartridges 21, and the plurality of guide grooves 2104 are respectively connected with the plurality of rows of honeycomb holes 2103, and the circumferential surfaces of the plurality of honeycomb filter cartridges 21 A driving plate 2101 is fixedly installed on each surface, a plurality of openings 2105 are equidistantly penetrated on the circumferential outer surface of the fixed cylinder 2, the driving plate 2101 penetrates the openings 2105 and is slidably installed on the inner wall thereof, two supporting blocks 22 are symmetrically fixedly installed on the circumferential outer surface of the fixed cylinder 2 near the openings 2105, a crankshaft 2106 is rotatably installed between the two supporting blocks 22, a plurality of curved necks are provided on the outer surface of the crankshaft 2106, and the plurality of curved necks are alternately and symmetrically arranged, a driving groove 2102 is penetrated on the outer surface of the driving plate 2101, the curved necks are slidably installed on the inner wall of the driving groove 2102, a driving motor 23 is fixedly installed on the outer surface of one side of one of the supporting blocks 22, and the output end of the driving motor 23 penetrates the outer surface of the supporting block 22 and is fixedly installed on the rotation center of the crankshaft 2106.

[0019] The crankshaft 2106 is driven to rotate by the driving motor 23, and the crankshaft 2106 drives the honeycomb filter cartridge 21 to rotate alternately and reciprocatingly through the cooperation of the curved neck and the driving groove 2102. Due to the alternating reciprocating motion of the honeycomb filter cartridge 21, the diameter of the honeycomb holes 2103 on adjacent honeycomb filter cartridges 21 changes alternately from large to small. At this time, the wind blown out from the exhaust pipe 4 will also increase or decrease accordingly. The flow rate of the wind is intermittently changed by this setting, so that the new sodium hydroxide solution can fully contact with the exhaust gas. Through this device, the pharmaceutical synthesis exhaust gas can fully contact with the sodium hydroxide solution for neutralization reaction, and the hydrogen chloride gas inside the pharmaceutical synthesis exhaust gas is filtered out, thereby improving the exhaust gas filtration effect.

[0020] In this embodiment, a plurality of guide plates 6 are fixedly installed at equal intervals on the upper surface of the fixed cylinder 2, and a plurality of through holes are evenly and evenly opened on the inner walls of the plurality of guide plates 6, which are connected to the guide groove 2104, and a mounting sink is opened at the top of the guide plate 6, and a liquid inlet roller 14 is rotatably installed between the inner walls at opposite ends of the mounting sink, and a plurality of liquid inlet holes are evenly opened on the circumferential outer surface of the liquid inlet roller 14, which are connected to the guide groove 2104 through the through holes, and a liquid storage tank 5 is fixedly installed on the top of the plurality of guide plates 6, and a bottom wall of the liquid storage tank 5 is evenly opened. There are multiple flow grooves, and the multiple flow grooves are connected to the multiple installation sinks. Both ends of the liquid inlet roller 14 pass through the outer surface of the guide plate 6 and are fixedly installed with a swing rod 13. The bottom end of the swing rod 13 is rotatably installed with a driving rod 12. The end of the driving rod 12 close to the air outlet pipe 4 is fixedly installed with a connecting rod 11. The outer surface of the connecting rod 11 is rotatably installed with a first connecting rod 10. The bottom end of the first connecting rod 10 is rotatably installed with a fixed rod 9. The end face of the air outlet pipe 4 close to the fixed rod 9 is fixedly installed with a support 901, and the bottom end of the fixed rod 9 is fixedly installed with a blowing plate 8.

[0021] When the exhaust gas is blown out from the exhaust pipe 4, the exhaust gas blows the blowing plate 8, and the blowing plate 8 drives the fixed rod 9 to rotate. The fixed rod 9 drives the driving rod 12 to reciprocate through the first connecting rod 10 and the connecting rod 11. The driving rod 12 drives the liquid inlet roller 14 to reciprocate through the swing rod 13, so that the liquid inlet hole on the liquid inlet roller 14 is connected with the guide groove 2104 through the through hole, and the sodium hydroxide solution inside the liquid storage tank 5 will flow from the circulation groove into the inside of the guide groove 2104. Since the fixed cylinder 2 is set inclined, the sodium hydroxide solution flowing through the guide groove 2104 will flow into the honeycomb filter core cylinder 21. The honeycomb hole 2103, coupled with the reciprocating swing of the honeycomb filter cartridge 21, causes the sodium hydroxide solution to adhere to the inner wall of the honeycomb hole 2103 of the honeycomb filter cartridge 21, and the wind flow rate is intermittently changed. At the same time, it is beneficial for new sodium hydroxide solution to re-attach to the inner wall of the honeycomb hole 2103. The size of the wind blown out by the air outlet pipe 4 changes, causing the blowing plate 8 to swing back and forth, intermittently injecting new sodium hydroxide solution into the honeycomb hole 2103. This device facilitates intermittent quantitative control of the sodium hydroxide solution entering the honeycomb filter cartridge 21, thereby avoiding waste of sodium hydroxide solution.

[0022] In this embodiment, an air storage groove 802 is provided on the outer surface in the middle position of one side of the blowing plate 8, and a plurality of notches are equidistantly provided on the outer surface of one side of the blowing plate 8 in the circumferential direction, and an opening and closing plate 801 is slidably installed on the inner walls of the plurality of notches, and a plurality of grooves 804 are equidistantly provided on the outer surface of the blowing plate 8 close to the air storage groove 802 in the circumferential direction, and the grooves 804 are connected with the air storage groove 802, and a piston plate 803 is slidably installed on the inner walls of the plurality of grooves 804, and a sliding column 806 is fixedly installed on the outer surface of the piston plate 803, and the other end of the sliding column 806 passes through the inner wall of the notch and is fixedly installed on the outer surface of the opening and closing plate 801, and a spring 805 is sleeved on the outer surface of the sliding column 806, and the spring 805 is arranged inside the groove 804, and a sealing plate is fixedly installed on the outer surface of one side of the blowing plate 8, and an air inlet and outlet valve is provided on the outer surface of the sealing plate, and the air inlet and outlet valve is connected with the air storage tank 802.

[0023] Since the sodium hydroxide solution and the hydrogen chloride gas will release heat during the neutralization reaction, when the concentration of the hydrogen chloride gas contained in the pharmaceutical synthesis tail gas is relatively high, the heat released by the neutralization reaction will increase. At this time, the temperature of the filtered gas blown out from the outlet pipe 4 will increase, and the helium inside the gas storage tank 802 will expand due to the temperature increase. At this time, the piston plate 803 drives the opening and closing plate 801 to expand through the sliding column 806. Through this device, when the concentration of the hydrogen chloride gas contained in the pharmaceutical synthesis tail gas is relatively high, the wind receiving area of ​​the blowing plate 8 is increased, so that the blowing plate 8 can make the liquid inlet roller 14 rotate to a larger amplitude when the blown wind is relatively small, thereby increasing the amount of sodium hydroxide solution entering the honeycomb filter cartridge 21, so that the hydrogen chloride gas can be fully neutralized and absorbed even when the concentration is relatively high.

[0024] In this embodiment, a limiting sleeve 15 is fixedly installed on the outer surface of the air outlet pipe 4 near the support 901, and a square limiting slide rod 16 is slidably inserted into the inner wall of the limiting slide sleeve 15. One end of the square limiting slide rod 16 is abutted against the outer surface of the fixed rod 9, and the other end of the square limiting slide rod 16 is rotatably installed with a second connecting rod 17, and the top end of the second connecting rod 17 is rotatably installed with a connecting column 18. A floating block 20 is arranged inside the liquid storage tank 5, and the top end of the floating block 20 passes through the upper surface of the liquid storage tank 5 and is slidably installed therewith, and a connecting plate 19 is fixedly installed on the top end of the floating block 20, and the top end of the connecting column 18 is fixedly connected to the lower surface of the connecting plate 19.

[0025] When the sodium hydroxide solution inside the liquid storage tank 5 gradually decreases, the floating block 20 will gradually descend. When the floating block 20 descends, it will drive the connecting column 18 to descend. The connecting column 18 drives the square limit slide bar 16 to slide out of the limit slide sleeve 15 through the second connecting rod 17. At this time, the top end of the fixed rod 9 will collide with the end of the square limit slide bar 16 and make a sound when swinging. This device reminds the operator that the sodium hydroxide solution inside the liquid storage tank 5 is insufficient and new sodium hydroxide solution needs to be added.

[0026] In this embodiment, a liquid outlet 401 is provided through the outer surface of the air outlet pipe 4 near the bottom, the blowing plate 8 is arranged in the middle position of the air outlet end of the air outlet pipe 4, and a liquid filling port is arranged on the upper surface of the liquid storage tank 5, and the neutralized waste liquid is discharged through the liquid outlet 401.

[0027] In this embodiment, it should be noted that when the device starts to move, the blowing plate 8 can be manually swung so that a portion of the sodium hydroxide solution can first enter the honeycomb holes 2103.

[0028] It should be noted that when the present invention is used, the operator adds a sodium hydroxide solution of a certain concentration into the liquid storage tank 5, and then injects a certain amount of helium into the gas storage tank 802 inside the blowing plate 8 through the inlet and outlet valves, and then connects the pharmaceutical synthesis tail gas to the air inlet pipe 3 through the air pipe, and the pharmaceutical synthesis tail gas enters the interior of the fixed cylinder 2 through the honeycomb holes 2103 on the air inlet pipe 3 and the honeycomb baffle 7. When the pharmaceutical synthesis tail gas enters, it will enter layer by layer through the honeycomb holes 2103 on the honeycomb filter cartridge 21 and then be discharged from the air outlet pipe 4; When the tail gas from pharmaceutical synthesis enters the honeycomb filter cartridge 21, the crankshaft 2106 is driven to rotate by the driving motor 23. The crankshaft 2106 drives the honeycomb filter cartridge 21 to rotate alternately and reciprocally through the cooperation of the curved neck and the driving groove 2102, so that the honeycomb holes 2103 on the honeycomb filter cartridge 21 are connected. When the tail gas is blown out from the exhaust pipe 4, the blowing plate 8 is blown by the tail gas, and the blowing plate 8 drives the fixed rod 9 to rotate. The fixed rod 9 drives the driving rod 12 to reciprocate through the first connecting rod 10 and the connecting rod 11. The driving rod 12 drives the liquid inlet roller 14 to reciprocate through the swing rod 13, so that the liquid inlet hole on the liquid inlet roller 14 is connected with the guide groove 2104 through the through hole. The sodium hydroxide solution inside the liquid storage tank 5 will flow from the circulation groove into the inside of the guide groove 2104. Since the fixed cylinder 2 is set tilted, the sodium hydroxide solution flowing through the guide groove 2104 will flow into the honeycomb hole 2103 of the honeycomb filter cartridge 21. , plus the reciprocating swing of the honeycomb filter cartridge 21, the sodium hydroxide solution will adhere to the inner wall of the honeycomb hole 2103 of the honeycomb filter cartridge 21, and the pharmaceutical synthesis tail gas will react with the sodium hydroxide solution after passing through the inner wall of the honeycomb hole 2103. With the continuous entry of new sodium hydroxide solution, the neutralization reaction is continuously carried out to neutralize the hydrogen chloride gas inside the pharmaceutical synthesis tail gas. Due to the alternating reciprocating motion of the honeycomb filter cartridge 21, the diameter of the honeycomb holes 2103 on adjacent honeycomb filter cartridges 21 changes alternately from large to small. At this time, the wind blown out from the outlet pipe 4 will also change accordingly. The wind flow rate is intermittently changed by this setting, so that the new sodium hydroxide solution can fully contact with the tail gas. Through this device, the pharmaceutical synthesis tail gas can fully contact with the sodium hydroxide solution for neutralization reaction, and the hydrogen chloride gas inside the pharmaceutical synthesis tail gas is filtered out, thereby improving the tail gas filtration effect.

[0029] By intermittently changing the wind flow rate, it is also beneficial for new sodium hydroxide solution to reattach to the inner wall of the honeycomb hole 2103. The wind blown out of the air outlet pipe 4 changes in size, so that the blowing plate 8 swings back and forth, and intermittently injects new sodium hydroxide solution into the honeycomb hole 2103. The device facilitates intermittent quantitative control of the sodium hydroxide solution entering the honeycomb filter cartridge 21, thereby avoiding the waste of sodium hydroxide solution. When the sodium hydroxide solution in the liquid storage tank 5 gradually decreases, the floating block 20 will gradually drop. When the floating block 20 drops, it will drive the connecting column 18 to drop. The connecting column 18 drives the square limit slide bar 16 to slide out of the limit slide sleeve 15 through the second connecting rod 17. At this time, the top of the fixed rod 9 will collide with the end of the square limit slide bar 16 when swinging, making a sound, and the device reminds the operator that the sodium hydroxide solution in the liquid storage tank 5 is insufficient and new sodium hydroxide solution needs to be added. Since the sodium hydroxide solution and the hydrogen chloride gas will release heat during the neutralization reaction, when the concentration of the hydrogen chloride gas contained in the pharmaceutical synthesis tail gas is relatively high, the heat released by the neutralization reaction will increase. At this time, the temperature of the filtered gas blown out from the outlet pipe 4 will increase, and the helium inside the gas storage tank 802 will expand due to the temperature increase. At this time, the piston plate 803 drives the opening and closing plate 801 to expand through the sliding column 806. Through this device, when the concentration of the hydrogen chloride gas contained in the pharmaceutical synthesis tail gas is relatively high, the wind receiving area of ​​the blowing plate 8 is increased, so that the blowing plate 8 can make the liquid inlet roller 14 rotate to a larger amplitude when the blown wind is relatively small, thereby increasing the amount of sodium hydroxide solution entering the honeycomb filter cartridge 21, so that the hydrogen chloride gas can be fully neutralized and absorbed even when the concentration is relatively high.

[0030] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A pharmaceutical synthesis tail gas filtration device, comprising a base (1), characterized in that: A fixed cylinder (2) is fixedly mounted on the upper surface of the base (1); the fixed cylinder (2) is arranged tilted; an air inlet pipe (3) is fixedly mounted on a higher end port of the fixed cylinder (2); an air outlet pipe (4) is fixedly mounted on a lower end port of the fixed cylinder (2); honeycomb baffles (7) are fixedly mounted on the inner walls of the fixed cylinder (2) near both ends; a plurality of honeycomb filter cartridges (21) are rotatably mounted on the inner wall of the fixed cylinder (2); end surfaces of two adjacent honeycomb filter cartridges (21) are arranged to be flush with each other; and the honeycomb filter cartridges (21) are fixedly mounted on the inner wall of the fixed cylinder (2). The end surface of the honeycomb filter cartridge (21) is evenly penetrated with multiple rows of honeycomb holes (2103), the end surfaces of the opposite ends of the honeycomb filter cartridge (21) are provided with multiple guide grooves (2104), the multiple guide grooves (2104) are respectively connected to the multiple rows of honeycomb holes (2103), the circumferential outer surfaces of the multiple honeycomb filter cartridges (21) are fixedly mounted with drive plates (2101), the circumferential outer surface of the fixed cartridge (2) is evenly penetrated with multiple openings (2105), and the drive plate (2101) is penetrated through the openings (2105) and slidably mounted on its inner wall.

2. The pharmaceutical synthesis tail gas filtration equipment according to claim 1, characterized in that: Two support blocks (22) are symmetrically fixedly mounted on the circumferential outer surface of the fixed cylinder (2) near the opening (2105), a crankshaft (2106) is rotatably mounted between the two support blocks (22), a plurality of curved necks are arranged on the outer surface of the crankshaft (2106), and the plurality of curved necks are alternately and symmetrically arranged, a driving groove (2102) is penetrated through the outer surface of the driving plate (2101), and the curved neck is slidably mounted on the inner wall of the driving groove (2102), a driving motor (23) is fixedly mounted on the outer surface of one side of one of the support blocks (22), and the output end of the driving motor (23) penetrates the outer surface of the support block (22) and is fixedly mounted at the rotation center of the crankshaft (2106).

3. The pharmaceutical synthesis tail gas filtration equipment according to claim 1, characterized in that: A plurality of guide plates (6) are fixedly mounted at equal intervals on the upper surface of the fixed cylinder (2); a plurality of through holes are evenly and evenly formed on the inner walls of the plurality of guide plates (6); the through holes are connected to the guide groove (2104); a mounting groove is formed on the top of the guide plate (6); a liquid inlet roller (14) is rotatably mounted between the inner walls at opposite ends of the mounting groove; a plurality of liquid inlet holes are evenly and equidistantly formed on the circumferential outer surface of the liquid inlet roller (14); the liquid inlet holes are connected to the guide groove (2104) through the through holes; a liquid storage tank (5) is fixedly mounted on the top of the plurality of guide plates (6); a plurality of flow grooves are evenly and equidistantly formed on the bottom wall of the liquid storage tank (5); the plurality of flow grooves are connected to the plurality of mounting grooves.

4. The pharmaceutical synthesis tail gas filtration equipment according to claim 3, characterized in that: Both ends of the liquid inlet roller (14) penetrate the outer surface of the guide plate (6) and are fixedly mounted with a swing rod (13); the bottom end of the swing rod (13) is rotatably mounted with a driving rod (12); the end of the driving rod (12) close to the air outlet pipe (4) is fixedly mounted with a connecting rod (11); the outer surface of the connecting rod (11) is rotatably mounted with a first connecting rod (10); the bottom end of the first connecting rod (10) is rotatably mounted with a fixing rod (9); and the end surface of the air outlet pipe (4) close to the fixing rod (9) is fixedly mounted with a support (901).

5. The pharmaceutical synthesis tail gas filtration equipment according to claim 4, characterized in that: A blowing plate (8) is fixedly mounted on the bottom end of the fixing rod (9); an air storage groove (802) is provided on the outer surface of one side of the blowing plate (8) at a middle position; a plurality of notches are equidistantly provided on the outer surface of one side of the blowing plate (8) in a circumferential direction; opening and closing plates (801) are slidably mounted on the inner walls of the plurality of notches; a plurality of sinking grooves (804) are equidistantly provided on the outer surface of the blowing plate (8) near the air storage groove (802) in a circumferential direction; the sinking grooves (804) are connected to the air storage groove (802); the inner walls of the plurality of sinking grooves (804) are slidably mounted. A piston plate (803) is installed, and a sliding column (806) is fixedly installed on the outer surface of the piston plate (803). The other end of the sliding column (806) passes through the inner wall of the notch and is fixedly installed on the outer surface of the opening and closing plate (801). A spring (805) is sleeved on the outer surface of the sliding column (806), and the spring (805) is arranged inside the sink groove (804). A sealing plate is fixedly installed on the outer surface of one side of the blowing plate (8), and an inlet and outlet valve is arranged on the outer surface of the sealing plate. The inlet and outlet valve is connected to the air storage tank (802).

6. The pharmaceutical synthesis tail gas filtration equipment according to claim 5, characterized in that: A limiting sliding sleeve (15) is fixedly installed on the outer surface of the air outlet pipe (4) close to the support (901), and a square limiting sliding rod (16) is slidably inserted into the inner wall of the limiting sliding sleeve (15). One end of the square limiting sliding rod (16) abuts against the outer surface of the fixed rod (9), and the other end of the square limiting sliding rod (16) is rotatably installed with a second connecting rod (17), and the top end of the second connecting rod (17) is rotatably installed with a connecting column (18). A floating block (20) is arranged inside the liquid storage tank (5), and the top end of the floating block (20) penetrates the upper surface of the liquid storage tank (5) and is slidably installed therewith, and a connecting plate (19) is fixedly installed on the top end of the floating block (20), and the top end of the connecting column (18) is fixedly connected to the lower surface of the connecting plate (19).

7. The pharmaceutical synthesis tail gas filtration equipment according to claim 6, characterized in that: The outer surface of the air outlet pipe (4) near the bottom is provided with a liquid outlet (401), the blowing plate (8) is arranged at the middle position of the air outlet end of the air outlet pipe (4), and the upper surface of the liquid storage box (5) is provided with a liquid filling port.

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