A waste gas purification and recovery device for nitrocellulose production

Abstract

The present invention relates to the field of waste gas purification and recovery technology, and specifically to a waste gas purification and recovery device for nitrocellulose production, comprising two frames, a stirring and leveling mechanism, a driving mechanism, and a uniform feeding mechanism, comprising two frames, a fixed block 2 being rotatably connected between the two frames, and an upper cavity being fixedly connected between the two fixed blocks 2. The present invention drives a first shaft to slide along a wave chute through a driving mechanism, and the stirring and leveling mechanism digs up the activated carbon at the bottom that first contacts the waste gas, so that the activated carbon that first contacts the waste gas each time is the activated carbon with a strong adsorption capacity. When the driving mechanism drives the stirring and leveling mechanism to reverse, the stirred activated carbon can be re-spread evenly during the reversal. At the same time, the uniform feeding mechanism cooperates with the first shaft to move along the wave chute, which can control the uniform feeding of the activated carbon and evenly spread the activated carbon on the upper cavity. When all the activated carbon needs to be replaced, it can be quickly removed, which is very convenient and efficient.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas purification and recovery, and in particular to a waste gas purification and recovery device for nitrocellulose production. Background Art

[0002] Nitrocellulose, also known as cellulose nitrate, is a white or slightly yellowish cotton-like substance that is insoluble in water but soluble in organic solvents such as esters and acetone. Nitrocellulose is highly flammable and explosive, with the degree of danger varying depending on the degree of nitration. Nitrocellulose production produces a variety of waste gases, primarily containing volatile organic compounds.

[0003] The patent with authorization announcement number CN118371088B discloses waste gas purification equipment for nitrocellulose production and its purification process, including: an installation frame, the installation frame is arranged inside the shell, a first volute is provided inside the installation frame, and a second volute is provided above the first volute and has the same spiral direction as the first volute. The first volute and the second volute are used to be filled with adsorption medium. The first volute can form a first flow channel in the shape of an involute, and the second volute can form a second flow channel in the shape of an involute. The outer ends of the first volute and the second volute are against the installation frame and the inner circumferential wall, and an air inlet is provided at the edge of the installation frame.

[0004] However, the above-mentioned nitrocellulose production waste gas purification equipment and purification process thereof still have some shortcomings in actual use: 1. The feed port can be opened by moving the baffle, so that the activated carbon can fall into the interior of the second flow channel by gravity, and the activated carbon can be transported to the interior of the first flow channel by rotating the second volute, so that the first flow channel and the second flow channel can be filled, but only the activated carbon that falls on the baffle can be filled, and the activated carbon that falls on the material box cannot fall into the interior of the second flow channel and the first flow channel, and this method cannot spread the activated carbon evenly, and the activated carbon is uneven in each part, thereby affecting the purification effect; 2. Replacing the activated carbon by rotating the second volute and the first volute is very time-consuming and labor-intensive, so a nitrocellulose production waste gas purification and recovery device is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems in the background technology and to propose a waste gas purification and recovery device for nitrocellulose production.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The cam is fixedly connected to the upper chamber of the two fixing blocks, and the outer wall of one of the frames is fixedly connected to the tilting motor, and the output shaft of the tilting motor is fixedly connected to a preferred fixed block 2. The inner wall of the upper chamber is fixedly connected to the limiting threaded plate 1, and the outer wall of one side of the limiting threaded plate 1 is fixedly connected to the limiting threaded plate 2, and the outer wall of the limiting threaded plate 1 is provided with a wave sliding groove, and the inner wall of the wave sliding groove is slidably connected to a first shaft rod, the outer wall of the first shaft rod is fixedly connected to a connecting rod 4, and the end of the first shaft rod away from the limiting threaded plate 1 is fixedly connected to the connecting plate 2, the outer wall of the connecting rod 4 is slidably connected to a connecting rod 3, and the inner wall of the connecting rod 3 is fixedly connected to the limiting sliding rod, and the limiting sliding rod is slidably connected to the inner wall of the upper chamber, and further includes:

[0008] a stirring and leveling mechanism, for uniformly mixing and leveling the activated carbon that has adsorbed the exhaust gas when the first shaft reciprocates along the wave chute, the stirring and leveling mechanism being mounted on the second connecting plate;

[0009] a driving mechanism, for driving the connecting rod 3 to move, wherein the driving mechanism is mounted on the upper cavity;

[0010] And a uniform feeding mechanism is used to cooperate with the connecting rod three so that the activated carbon can be evenly spread on the upper cavity, and the uniform feeding mechanism is installed on the upper cavity.

[0011] Preferably, the top outer wall of the upper cavity is fixedly connected to an air outlet, the bottom outer wall of the upper cavity is fixedly connected to the lower cavity, the top outer wall of the upper cavity is movably connected to a feed plug, the side wall of the upper cavity is hinged with a discharge plate, the inner wall of the lower cavity is fixedly connected to a flexible ventilation pipe, and the top outer wall of the upper cavity is fixedly connected to a cover plate.

[0012] Preferably, the inner wall of the upper cavity is threadedly connected to two threaded knobs, the ends of the two threaded knobs are rotatably connected to a fixed block one, the outer walls of the two fixed blocks one are slidably connected to a limiting plate one, the two limiting plates one are fixedly connected to the inner wall of the upper cavity, and the two fixed blocks one are fixedly connected to a limiting threaded plate one.

[0013] Preferably, the uniform feeding mechanism includes a track spiral plate, a limiting slide rail, a mounting ring, a driving gear and a driving motor. The outer wall of the track spiral plate is fixedly connected to the upper cavity, the limiting slide rail is fixedly connected to the track spiral plate, the gear set is fixedly connected to the track spiral plate, the mounting ring is slidingly connected to the limiting slide rail, the driving motor is fixedly connected to the mounting ring, the output shaft of the driving motor is fixedly connected to the driving gear, the driving gear is meshed with the gear set, and the inner wall of the mounting ring is fixedly connected with a connecting port, and the connecting port is fixedly connected to the flexible ventilation pipe.

[0014] Preferably, the end of the connecting rod three away from the limiting slide rod is fixedly connected to the mounting ring, and the driving mechanism includes a feed pipe fixing ring, a double conical plate, a connecting rod one and a fixing plate one, the fixing plate one is fixedly connected to the connecting rod three, the connecting rod one is fixedly connected to the fixing plate one, the fixing plate one is fixedly connected to the connecting rod four, the feed pipe fixing ring is fixedly connected to the outer wall of the limiting slide rod, the double conical plate is fixedly connected to the connecting rod one, and a corrugated feed pipe is fixedly connected between the feed pipe fixing ring and the feed plug.

[0015] Preferably, the inner wall of the upper cavity is fixedly connected with the second gear block group, the outer wall one-way bearing of the limiting thread plate 1 is connected with a transmission gear, and the transmission gear is meshed with the second gear block group.

[0016] Preferably, a special-shaped limiting plate is fixedly connected to the outer wall of the upper cavity, and the special-shaped limiting plate is arranged below the wave chute.

[0017] Preferably, the mixing and paving mechanism includes an L-shaped support rod, a third slide rod, a chute roller, a traction rope, a torsion spring, a rotating cylinder and a dual-purpose plate, the L-shaped support rod is slidingly connected to the second connecting plate, a third spring is fixedly connected between the L-shaped support rod and the second connecting plate, the rotating cylinder is rotatably connected to the inner wall of the second connecting plate, a torsion spring is fixedly connected between the end of the rotating cylinder and the second connecting plate, an end of the rotating cylinder away from the torsion spring is fixedly connected to the fourth connecting rod, the third slide rod is fixedly connected to the L-shaped support rod, the chute roller is rotatably connected to the second connecting plate, the third slide rod is slidably connected to the chute roller, and the traction rope is fixedly connected between the rotating cylinder and the chute roller.

[0018] Compared with the existing technology, the advantages of this waste gas purification and recovery device for nitrocellulose production are:

[0019] 1. The L-shaped support rod is resisted by the special-shaped limiting plate. When the first shaft rod moves down along the wave chute, the L-shaped support rod will extend into the second connecting plate, thereby driving the chute roller to rotate, causing the chute roller to pull the traction rope, driving the third slide bar to rotate, so that the dual-purpose plate will dig up the activated carbon at the bottom that first contacts the exhaust gas. At the same time, because when the first shaft rod moves up along the wave chute, the edge distance of the special-shaped limiting plate does not change at first, and then decreases to the shortest, so that the activated carbon will fall down only after it is dug up, instead of changing the activated carbon while digging. Therefore, the activated carbon that first contacts the exhaust gas each time is the activated carbon with strong adsorption capacity;

[0020] 2. When the driving motor 1 moves to the center with the flexible ventilation tube, the driving motor 1 reverses. At this time, since the transmission gear and the limiting threaded plate 1 are connected by a one-way bearing, the first shaft will slide to the top of the wave chute. At this time, the dual-purpose plate will always remain in a vertical state, so that the activated carbon that has just been stirred can be evenly re-spread during the reversal;

[0021] 3. When feeding is required, the fixed plate moves up and down with the limiting threaded plate. When the feed pipe fixing ring carries the corrugated feed pipe to feed the material, the double-conical plate moves up and down to control the uniformity of the discharge. Then, when the drive motor reverses, the dual-purpose plate can be used to flatten the activated carbon.

[0022] To sum up, the present invention drives the first shaft to slide along the wave chute through the driving mechanism, and the stirring and leveling mechanism digs up the activated carbon at the bottom that first contacts the exhaust gas. Only after all the activated carbon is dug up will it fall down in an instant, instead of changing the activated carbon while digging it out, so that the first activated carbon to contact the exhaust gas each time is the activated carbon with a strong adsorption capacity. When the driving mechanism drives the stirring and leveling mechanism to reverse, the stirred activated carbon can be re-spread evenly during the reversal. At the same time, the uniform feeding mechanism cooperates with the first shaft along the wave chute to control the uniform feeding of the activated carbon and spread the activated carbon evenly on the upper cavity. When all the activated carbon needs to be replaced, it can be quickly cleared, which is very convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the bottom structure of the upper cavity of the present invention;

[0025] Figure 3 This invention Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0026] Figure 4 This is a schematic diagram of the internal structure of the upper cavity of the present invention;

[0027] Figure 5This is a schematic diagram of a partially enlarged structure of one end portion of the limiting threaded plate of the present invention;

[0028] Figure 6 This is a schematic structural diagram of the connection between the third connecting rod and the track spiral plate of the present invention;

[0029] Figure 7 This is a partial structural diagram of the turning, mixing and leveling mechanism of the present invention;

[0030] Figure 8 This invention Figure 7 Schematic diagram of the locally enlarged structure at point B in the middle.

[0031] In the figure: 1. Frame; 2. Tilt motor; 3. Fixed block 2; 4. Air outlet; 5. Cover plate; 6. Threaded knob; 7. Feed plug; 8. Discharge plate; 9. Flexible vent tube; 10. Upper chamber; 11. Lower chamber; 12. Track spiral plate; 13. Gear set 1; 14. Drive gear; 15. Limiting slide rail 1; 16. Drive motor 1; 17. Connecting port; 18. Mounting ring; 19. Limiting plate 1; 20. Fixed block 1; 21. Limiting slide rod; 22. Feed tube fixing ring; 23. Double-conical plate; 24. Connecting rod 1. 25. Connecting plate two; 26. Fixed plate one; 27. Limiting threaded plate one; 28. Wave chute; 29. ​​Tooth block group two; 30. Special-shaped limiting plate; 31. Connecting rod three; 32. Limiting threaded plate two; 33. L-shaped support rod; 34. Dual-purpose plate; 35. Connecting rod four; 36. Transmission gear; 37. First shaft rod; 38. Traction rope; 39. Chute roller; 40. Sliding rod three; 41. Third spring; 42. Rotating cylinder; 43. Torsion spring; 101. Driving mechanism; 202. Uniform feeding mechanism; 303. Stirring and leveling mechanism. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0034] Reference Figures 1-8A waste gas purification and recovery device for nitrocellulose production includes two frames 1, a fixed block 2 3 is rotatably connected between the two frames 1, an upper cavity 10 is fixedly connected between the two fixed blocks 2 3, an outer wall of one of the frames 1 is fixedly connected to a tilting motor 2, an output shaft of the tilting motor 2 is fixedly connected to one of the fixed blocks 2 3, an inner wall of the upper cavity 10 is fixedly connected to a limiting threaded plate 1 27, an outer wall of one side of the limiting threaded plate 1 27 is fixedly connected to a limiting threaded plate 2 32, an outer wall of the limiting threaded plate 1 27 is provided with a wave chute 28, a first shaft rod 37 is slidably connected inside the wave chute 28, an outer wall of the first shaft rod 37 is fixedly connected to a connecting rod 4 35, and an end of the first shaft rod 37 away from the limiting threaded plate 1 27 is fixedly connected to a connecting rod 4 The outer wall of connecting plate two 25 and connecting rod four 35 is slidably connected to connecting rod three 31, and the inner wall of connecting rod three 31 is fixedly connected to the limiting slide bar 21, and the limiting slide bar 21 is slidably connected to the inner wall of the upper cavity 10. It also includes: a stirring and leveling mechanism 303, which is used to mix and level the activated carbon that has adsorbed the exhaust gas evenly when the first shaft 37 slides back and forth along the wave slide 28, and the stirring and leveling mechanism 303 is installed on connecting plate two 25; a driving mechanism 101, which is used to drive connecting rod three 31 to move, and the driving mechanism 101 is installed on the upper cavity 10; and a uniform feeding mechanism 202, which is used to cooperate with connecting rod three 31 so that the activated carbon can be evenly spread on the upper cavity 10, and the uniform feeding mechanism 202 is installed on the upper cavity 10.

[0035] Among them, the top outer wall of the upper cavity 10 is fixedly connected to the air outlet 4, the bottom outer wall of the upper cavity 10 is fixedly connected to the lower cavity 11, the top outer wall of the upper cavity 10 is movably connected to the feed plug 7, the side wall of the upper cavity 10 is hinged with the discharge plate 8, the inner wall of the lower cavity 11 is fixedly connected to the flexible ventilation pipe 9, and the top outer wall of the upper cavity 10 is fixedly connected to the cover plate 5.

[0036] Among them, the end of the connecting rod three 31 away from the limiting slide 21 is fixedly connected to the mounting ring 18, the driving mechanism 101 includes a feed pipe fixing ring 22, a double conical plate 23, a connecting rod one 24 and a fixing plate one 26, the fixing plate one 26 is fixedly connected to the connecting rod three 31, the connecting rod one 24 is fixedly connected to the fixing plate one 26, the fixing plate one 26 is fixedly connected to the connecting rod four 35, the feed pipe fixing ring 22 is fixedly connected to the outer wall of the limiting slide 21, the double conical plate 23 is fixedly connected to the connecting rod one 24, and a corrugated feed pipe is fixedly connected between the feed pipe fixing ring 22 and the feed plug 7.

[0037] In this embodiment, one end of the flexible ventilation pipe 9 is connected to the air outlet end of the nitrocellulose production equipment, and the driving motor 16 rotates to drive the driving gear 14 to rotate. The driving gear 14 engages with the gear set 13, thereby driving the connecting port 17 and the mounting ring 18 to slide along the track spiral plate 12. A breathable plate corresponding to the track spiral plate 12 is provided at the bottom of the frame 1, and the activated carbon is spread between the limiting threaded plate 27 and the upper cavity 10, so that the waste gas produced by the nitrocellulose production can pass through the upper cavity 10 and be absorbed by the activated carbon.

[0038] Among them, the inner wall of the upper cavity 10 is fixedly connected to the gear block set 29, and the outer wall one-way bearing of the limiting thread plate 1 27 is connected to the transmission gear 36, and the transmission gear 36 is engaged with the gear block set 29.

[0039] The outer wall of the upper cavity 10 is fixedly connected with a special-shaped limiting plate 30 , and the special-shaped limiting plate 30 is arranged below the wave chute 28 .

[0040] Among them, the mixing and paving mechanism 303 includes an L-shaped support rod 33, a sliding rod 340, a chute roller 39, a traction rope 38, a torsion spring 43, a rotating cylinder 42 and a dual-purpose plate 34. The L-shaped support rod 33 is slidingly connected to the connecting plate 25. A third spring 41 is fixedly connected between the L-shaped support rod 33 and the connecting plate 25. The rotating cylinder 42 is rotatably connected to the inner wall of the connecting plate 25. A torsion spring 43 is fixedly connected between the end of the rotating cylinder 42 and the connecting plate 25. The end of the rotating cylinder 42 away from the torsion spring 43 is fixedly connected to the connecting rod 4 35. The sliding rod 340 is fixedly connected to the L-shaped support rod 33. The chute roller 39 is rotatably connected to the connecting plate 25. The sliding rod 340 is slidably connected to the chute roller 39. The traction rope 38 is fixedly connected between the rotating cylinder 42 and the chute roller 39.

[0041] In this embodiment, since the connecting plate 25 is arranged on one side of the connecting rod 31, the activated carbon that has just been absorbed can be dug and lifted by the dual-purpose plate 34. Figure 7 and Figure 5 When the first shaft 37 slides downward along the wave chute 28, the edge of the special-shaped limiting plate 30 is the longest from the limiting thread plate 1 27. When the first shaft 37 moves upward along the wave chute 28, the edge of the special-shaped limiting plate 30 is the longest from the limiting thread plate 1 27. Figure 7-8As shown, the L-shaped support rod 33 is resisted by the special-shaped limiting plate 30. When the first shaft rod 37 moves down along the wave chute 28, the L-shaped support rod 33 will extend into the connecting plate 25, thereby driving the chute roller 39 to rotate, so that the chute roller 39 pulls the traction rope 38, driving the slide rod 3 40 to rotate, so that the dual-purpose plate 34 digs up the activated carbon at the bottom that first contacts the exhaust gas. At the same time, because when the first shaft rod 37 moves up along the wave chute 28, the edge distance of the special-shaped limiting plate 30 does not change at first, and then drops to the shortest, so that the activated carbon will fall down only after it is dug up, instead of changing the activated carbon while digging, so that the activated carbon that first contacts the exhaust gas each time is the activated carbon with strong adsorption capacity.

[0042] When the driving motor 16 brings the flexible ventilation tube 9 to the center, the driving motor 16 reverses. At this time, since the transmission gear 36 and the limiting threaded plate 27 are connected by a one-way bearing, the first shaft 37 will slide to the top of the wave chute 28. At this time, the dual-purpose plate 34 will always remain in a vertical state, so that the activated carbon that has just been stirred can be evenly re-spread during the reversal.

[0043] Among them, the uniform feeding mechanism 202 includes a track spiral plate 12, a limiting slide rail 15, a mounting ring 18, a driving gear 14 and a driving motor 16. The outer wall of the track spiral plate 12 is fixedly connected to the upper cavity 10, the limiting slide rail 15 is fixedly connected to the track spiral plate 12, the gear set 13 is fixedly connected to the track spiral plate 12, the mounting ring 18 is slidingly connected to the limiting slide rail 15, the driving motor 16 is fixedly connected to the mounting ring 18, the output shaft of the driving motor 16 is fixedly connected to the driving gear 14, the driving gear 14 is meshed with the gear set 13, and the inner wall of the mounting ring 18 is fixedly connected with a connecting port 17, which is fixedly connected to the flexible ventilation tube 9.

[0044] In this embodiment, when feeding is required, because the fixed plate 26 moves up and down with the limiting threaded plate 27, when the feed pipe fixing ring 22 carries the corrugated feed pipe to feed, the double-conical plate 23 moves back and forth upward, which can control the uniformity of the discharge, and then when the drive motor 16 reverses, the dual-purpose plate 34 can be used to flatten the activated carbon.

[0045] Among them, the inner wall of the upper cavity 10 is threadedly connected to two threaded knobs 6, the ends of the two threaded knobs 6 are rotatably connected to the fixed blocks 20, the outer walls of the two fixed blocks 20 are slidably connected to the limiting plates 19, the two limiting plates 19 are fixedly connected to the inner part of the upper cavity 10, and the two fixed blocks 20 are fixedly connected to the limiting threaded plate 27.

[0046] In this embodiment, when replacing the activated carbon, the two threaded knobs 6 are rotated so that the threaded knobs 6 drive the two fixed blocks 20 to move upward, and the special-shaped limiting plate 30 drives the limiting threaded plate 27 to move upward. After the limiting threaded plate 27 is away from the upper cavity 10, the discharge plate 8 is opened, and the tilting motor 2 is rotated to a certain angle to tilt the upper cavity 10, thereby discharging all the activated carbon, saving time and effort.

[0047] The specific working principle and usage of the present invention are explained in detail below: When in use, one end of the flexible ventilation tube 9 is connected to the air outlet section of the nitrocellulose production equipment, and the driving motor 16 rotates to drive the driving gear 14 to rotate. The driving gear 14 engages with the gear set 13, thereby driving the connecting port 17 and the mounting ring 18 to slide along the track spiral plate 12. A breathable plate corresponding to the track spiral plate 12 is provided at the bottom of the frame 1, and the activated carbon is spread flat between the limiting threaded plate 27 and the upper cavity 10, so that the waste gas produced by the nitrocellulose production can pass through the upper cavity 10 and be absorbed by the activated carbon.

[0048] Since the connecting plate 25 is arranged on one side of the connecting rod 31, the activated carbon just absorbed can be dug and lifted by the dual-purpose plate 34. Figure 7 and Figure 5 When the first shaft 37 slides downward along the wave chute 28, the edge of the special-shaped limiting plate 30 is the longest from the limiting thread plate 1 27. When the first shaft 37 moves upward along the wave chute 28, the edge of the special-shaped limiting plate 30 is the longest from the limiting thread plate 1 27. Figure 7-8 As shown, the L-shaped support rod 33 is resisted by the special-shaped limiting plate 30. When the first shaft rod 37 moves down along the wave chute 28, the L-shaped support rod 33 will extend into the connecting plate 25, thereby driving the chute roller 39 to rotate, so that the chute roller 39 pulls the traction rope 38, driving the slide rod 3 40 to rotate, so that the dual-purpose plate 34 digs up the activated carbon at the bottom that first contacts the exhaust gas. At the same time, because when the first shaft rod 37 moves up along the wave chute 28, the edge distance of the special-shaped limiting plate 30 does not change at first, and then drops to the shortest, so that the activated carbon will fall down only after it is dug up, instead of changing the activated carbon while digging, so that the activated carbon that first contacts the exhaust gas each time is the activated carbon with strong adsorption capacity.

[0049] When the driving motor 16 brings the flexible ventilation tube 9 to the center, the driving motor 16 reverses. At this time, since the transmission gear 36 and the limiting threaded plate 27 are connected by a one-way bearing, the first shaft 37 will slide to the top of the wave chute 28. At this time, the dual-purpose plate 34 will always remain in a vertical state, so that the activated carbon that has just been stirred can be evenly re-spread during the reversal.

[0050] When feeding is required, because the fixed plate 26 moves up and down with the limiting threaded plate 27, when the feed pipe fixing ring 22 carries the corrugated feed pipe to feed, the double-conical plate 23 moves back and forth upward, which can control the uniformity of the discharge. Then, when the drive motor 16 reverses, the dual-purpose plate 34 can be used to flatten the activated carbon.

[0051] When replacing the activated carbon, rotate the two threaded knobs 6 so that the threaded knobs 6 drive the two fixed blocks 20 to move upward, and the special-shaped limiting plate 30 drives the limiting threaded plate 27 to move upward. After the limiting threaded plate 27 is away from the upper cavity 10, open the discharge plate 8 and rotate the tilting motor 2 to a certain angle to tilt the upper cavity 10, thereby discharging all the activated carbon, saving time and effort.

[0052] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are common means well known to those skilled in the art.

[0053] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A waste gas purification and recovery device for nitrocellulose production, comprising two frames (1), wherein a fixed block 2 (3) is rotatably connected between the two frames (1), an upper cavity (10) is fixedly connected between the two fixed blocks 2 (3), an outer wall of one frame (1) is fixedly connected to a tilting motor (2), an output shaft of the tilting motor (2) is fixedly connected to one of the fixed blocks 2 (3), an inner wall of the upper cavity (10) is fixedly connected to a limiting threaded plate 1 (27), an outer wall of one side of the limiting threaded plate 1 (27) is fixedly connected to a limiting threaded plate 2 (32), and the limiting threaded plate 1 (27) is fixedly connected to an outer wall of a side of the limiting threaded plate 1 (32). The outer wall of plate one (27) is provided with a wave chute (28), the wave chute (28) is slidably connected to a first shaft rod (37), the outer wall of the first shaft rod (37) is fixedly connected to a connecting rod four (35), the end of the first shaft rod (37) away from the limiting threaded plate one (27) is fixedly connected to the connecting plate two (25), the outer wall of the connecting rod four (35) is slidably connected to a connecting rod three (31), the inner wall of the connecting rod three (31) is fixedly connected to a limiting slide rod (21), and the limiting slide rod (21) is slidably connected to the inner wall of the upper cavity (10), characterized in that, Also includes: A stirring and leveling mechanism (303) is used to evenly mix and level the activated carbon that has absorbed the exhaust gas when the first shaft (37) slides back and forth along the wave chute (28), and the stirring and leveling mechanism (303) is installed on the second connecting plate (25); A driving mechanism (101) for driving the third connecting rod (31) to move, wherein the driving mechanism (101) is mounted on the upper cavity (10); and a uniform feeding mechanism (202) for cooperating with the third connecting rod (31) to enable the activated carbon to be evenly spread on the upper cavity (10), wherein the uniform feeding mechanism (202) is installed on the upper cavity (10); The uniform feeding mechanism (202) includes a track spiral plate (12), a limiting slide rail (15), a mounting ring (18), a driving gear (14) and a driving motor (16), wherein the outer wall of the track spiral plate (12) is fixedly connected to the upper cavity (10), the limiting slide rail (15) is fixedly connected to the track spiral plate (12), the gear set (13) is fixedly connected to the track spiral plate (12), the mounting ring (18) is slidably connected to the limiting slide rail (15), the driving motor (16) is fixedly connected to the mounting ring (18), the output shaft of the driving motor (16) is fixedly connected to the driving gear (14), the driving gear (14) is meshed with the gear set (13), and the inner wall of the mounting ring (18) is fixedly connected to a connecting port (17), and the connecting port (17) is fixedly connected to the flexible vent pipe (9); The end of the connecting rod three (31) away from the limiting slide rod (21) is fixedly connected to the mounting ring (18), and the driving mechanism (101) includes a feed pipe fixing ring (22), a double conical plate (23), a connecting rod one (24) and a fixing plate one (26), wherein the fixing plate one (26) is fixedly connected to the connecting rod three (31), the connecting rod one (24) is fixedly connected to the fixing plate one (26), and the fixing plate one (26) is fixedly connected to the connecting rod four (35), the feed pipe fixing ring (22) is fixedly connected to the outer wall of the limiting slide rod (21), the double conical plate (23) is fixedly connected to the connecting rod one (24), and a corrugated feed pipe is fixedly connected between the feed pipe fixing ring (22) and the feed plug (7).

2. The waste gas purification and recovery device for nitrocellulose production according to claim 1, characterized in that: The top outer wall of the upper cavity (10) is fixedly connected to an air outlet (4), the bottom outer wall of the upper cavity (10) is fixedly connected to a lower cavity (11), the top outer wall of the upper cavity (10) is movably connected to a feed plug (7), the side wall of the upper cavity (10) is hinged to a discharge plate (8), the inner wall of the lower cavity (11) is fixedly connected to a flexible vent pipe (9), and the top outer wall of the upper cavity (10) is fixedly connected to a cover plate (5).

3. The waste gas purification and recovery device for nitrocellulose production according to claim 2, characterized in that: The inner wall of the upper cavity (10) is threadedly connected to two threaded knobs (6), the ends of the two threaded knobs (6) are rotatably connected to a fixed block (20), the outer walls of the two fixed blocks (20) are slidably connected to a limit plate (19), the two limit plates (19) are fixedly connected to the inner wall of the upper cavity (10), and the two fixed blocks (20) are fixedly connected to a limit thread plate (27).

4. The waste gas purification and recovery device for nitrocellulose production according to claim 1, characterized in that: The inner wall of the upper cavity (10) is fixedly connected to the second gear block group (29), and the outer wall one-way bearing of the limiting thread plate (27) is connected to the transmission gear (36), and the transmission gear (36) is meshed with the second gear block group (29).

5. The waste gas purification and recovery device for nitrocellulose production according to claim 4, characterized in that: A special-shaped limiting plate (30) is fixedly connected to the outer wall of the upper cavity (10), and the special-shaped limiting plate (30) is arranged below the wave chute (28).

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