Waste gas recovery device for preparing potassium aurous cyanide

Abstract

The invention belongs to the field of waste gas treatment, and particularly relates to a waste gas recovery device for potassium aurous cyanide preparation, which comprises a treatment cavity, an exhaust pipe and a gas inlet pipe are fixedly mounted at the top of the treatment cavity, one side of the treatment cavity is communicated and connected with a second water pipe, and one end of the second water pipe is fixedly connected with a filter box. A medicine adding box is fixedly mounted on one side of the filtering box, and a filtering frame is movably mounted in an inner cavity of a second water pipe; the blocking mechanism is used for performing final treatment on waste gas to be discharged; the blocking mechanism comprises a first water pump, the first water pump is fixedly mounted at the top of the treatment cavity, one side of the first water pump is fixedly connected with a first water pipe, and the first water pipe penetrates into an inner cavity of the treatment cavity; a solution in the treatment cavity is sucked out through the first water pump and sprayed out from the bottom of the exhaust pipe through the two first water spraying heads, waste gas can be treated again before the treated waste gas is exhausted, and it is avoided that the waste gas still contains harmful substances.

Description

Technical Field

[0001] The invention relates to the field of waste gas treatment, in particular to a waste gas recovery device for preparing potassium gold cyanide. Background Art

[0002] In the preparation process of potassium gold cyanide, waste gas is often produced. If these waste gases are directly discharged into the environment, they will have a negative impact on air quality and the ecological environment, and may also pose a threat to the health of operators.

[0003] After searching, the patent document with publication number CN118477465A discloses a waste gas recovery device for methyl tert-butyl ether, which includes a reaction box, a descaling mechanism is fixedly connected to the top of the reaction box, a stirring mechanism is fixedly connected to the inside of the reaction box, a connecting plate is fixedly connected to the bottom of the reaction box, a heating box is fixedly connected to the bottom of the connecting plate, and a heating mechanism is fixedly connected to the bottom of the heating box; the stirring mechanism includes: a motor, a protective sleeve is clamped on the outer side of the motor, a rotating shaft 1 is fixedly connected to the output end of the motor, a spiral blade is fixedly connected to the outer side of the rotating shaft 1, and a gear plate is fixedly connected to the end of the rotating shaft 1 away from the motor, and a pinion is meshed on the side of the gear plate.

[0004] The waste gas recovery device for methyl tert-butyl ether is provided with a stirring mechanism, wherein the motor drives the rotating shaft 1 to rotate, the rotating shaft 1 drives the pinion to rotate, and the pinion drives the stirring blade to rotate. If the connecting block connects the connecting rod 1 and the connecting rod 2 together through a latch, the straight stirring blade can be driven to revolve, and the pinion can drive the straight stirring blade to rotate on its own. In this way, the solution and the waste gas can be stirred more fully by rotating on its own and revolving on its own. At the same time, the spiral blade can transport the solution to the bottom of the reaction box, so that the solution and the waste gas are more uniform at each height, and uneven reaction in various places in the reaction box is avoided, thereby improving work efficiency. In actual use, the waste gas enters the reaction box and reacts with the solution in the reaction box. Although the efficiency of waste gas treatment is increased by stirring, a large amount of waste gas entering the reaction box is likely to increase the air pressure in the reaction box, affecting subsequent waste gas treatment.

[0005] Here we provide a waste gas recovery device for the preparation of potassium gold cyanide. Summary of the invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the waste gas after the treatment due to the increase of the gas pressure in the reaction box still contains harmful substances.

[0007] In order to solve the above technical problems, the present invention provides a waste gas recovery device for preparing potassium cyanogen gold, comprising a processing chamber, an exhaust pipe and an air inlet pipe are fixedly installed on the top of the processing chamber, a second water pipe is connected through one side of the processing chamber, a filter box is fixedly connected to one end of the second water pipe, a dosing box is fixedly installed on one side of the filter box, and a filter frame is movably installed in the inner cavity of the second water pipe;

[0008] It also includes a blocking mechanism for final treatment of the exhaust gas to be discharged;

[0009] The blocking mechanism includes a first water pump, which is fixedly installed on the top of the processing chamber. A first water pipe is fixedly connected to one side of the first water pump, and the first water pipe penetrates into the inner cavity of the processing chamber. Two connecting blocks are fixedly installed on the inner wall of the processing chamber. The two connecting blocks are located on both sides of the bottom of the exhaust pipe and are connected by a connecting pipe. One of the connecting blocks is connected to the first water pump, and first water spray heads are fixedly installed on the opposite surfaces of the two connecting blocks.

[0010] In one embodiment of the present invention, a first groove is provided on the outer surface of the processing chamber, a waste collecting box is slidably installed on the inner surface of the first groove, a plurality of ventilation holes are provided on one side of the waste collecting box, a first motor is fixedly installed on the inner wall of the waste collecting box, a connecting roller is fixedly connected to the output shaft of the first motor, a plurality of springs are evenly fixedly connected to the outer surface of the connecting roller, the plurality of springs are divided into two groups, and each group of springs is fixedly connected to a scraper.

[0011] In one embodiment of the present invention, two tracks are fixedly installed on the inner surface of the intake pipe, a linear motor is slidably installed on the outer surface of the track, and the two linear motors are commonly fixedly connected to a scraper ring, which is slidably installed on the inner wall of the intake pipe.

[0012] In one embodiment of the present invention, an air pipe is fixedly installed on the inner wall of the processing chamber, a second groove is opened on the top of the air pipe, the waste collecting box is movably installed in the inner cavity of the second groove, an air diffusion plate is fixedly connected to the bottom of the air pipe, connecting columns are evenly fixedly installed on the outer surface of the air diffusion plate, three of the connecting columns are fixedly installed on the inner wall of the processing chamber, and a diverter plate is fixedly installed on the top of the air diffusion plate.

[0013] In one embodiment of the present invention, a one-way valve is fixedly installed on the outer surface of the second water pipe, a top cover is movably installed on the top of the filter box, the filter frame is movably installed on the bottom of the top cover, a second motor is fixedly installed on the top of the top cover, the output shaft of the second motor passes through the inner cavity of the filter frame and is fixedly connected to a stirring plate, and a dosing box is fixedly installed on one side of the filter box.

[0014] In one embodiment of the present invention, a third water pipe is fixedly connected to the outer surface of the filter box, a second water pump is fixedly connected to the top of the third water pipe, a fourth water pipe is fixedly connected to the top of the second water pump, and one end of the fourth water pipe passes through the inner cavity of the treatment chamber.

[0015] In one embodiment of the present invention, one end of the fourth water pipe is fixedly connected to a fifth water pipe, and a plurality of second water spray heads are fixedly installed on the outer surface of the fifth water pipe.

[0016] In one embodiment of the present invention, a sixth water pipe is fixedly installed on one side of the filter box, one end of the sixth water pipe is fixedly connected to a third water pump, one side of the third water pump is fixedly connected to a seventh water pipe, and the outer surface of the seventh water pipe is fixedly connected to a heater.

[0017] In one embodiment of the present invention, one end of the seventh water pipe penetrates into the inner cavity of the processing chamber and is fixedly connected to a water distribution plate, a plurality of connecting rods are fixedly installed at the bottom of the water distribution plate, and a plurality of the connecting rods are fixedly installed on the top of the water distribution plate.

[0018] In one embodiment of the present invention, a third motor is fixedly installed on the top of the processing chamber, three spoilers are hinged on the output shaft of the third motor, six limit plates are fixedly installed on the spoiler output shaft, the six limit plates are grouped in pairs, and the two limit plates in the same group are located on both sides of two adjacent spoilers.

[0019] The above technical solution of the present invention has the following advantages compared with the prior art:

[0020] The waste gas recovery device for preparing potassium gold cyanide described in the present invention conveys waste gas to the inner cavity of the treatment chamber through an air intake pipe. The waste gas first passes through a waste collecting box, then enters the air delivery pipe through a ventilation hole, and is finally discharged through a diffuser plate. During the discharge process, the waste gas is dispersed by the diffuser plate and the diverter plate, which facilitates the waste gas to fully contact with the alkaline solution in the inner cavity of the treatment chamber. In the process of passing through the air intake pipe and the inner cavity of the waste collecting box, substances in the waste gas will adhere to the inner wall of the air intake pipe. By driving a scraper ring with two linear motors to slide along a track, substances on the inner wall of the air intake pipe can be cleaned to avoid affecting the transmission of the waste gas. By driving a connecting roller with the output shaft of the first motor to rotate, the connecting roller drives a spring and a scraper to scrape the side wall of the waste collecting box to avoid the substances in the waste gas from clogging the ventilation hole.

[0021] The waste gas recovery device for preparing potassium gold cyanide described in the present invention sucks out the solution in the treatment chamber through the first water pump and sprays it from the bottom of the exhaust pipe through two first water nozzles, so that the waste gas can be treated once more before the treated waste gas is discharged, so as to avoid harmful substances still contained in the waste gas. When treating the waste gas, the alkaline solution in the treatment chamber will enter the filter box through the second water pipe, and the dosing box will release metal salts into the filter box to precipitate substances in the waste gas. The second motor output shaft drives the stirring plate to rotate, so as to accelerate the reaction of the waste gas substances in the alkaline solution with the metal salts, and accelerate the speed of solid precipitation. Finally, the solid is retained in the filter frame by the filter frame.

[0022] The waste gas recovery device for preparing potassium gold cyanide described in the present invention sucks out the alkaline solution in the treatment chamber through the second water pump and the third water pump, and finally enters the treatment chamber through the seventh water pipe and the fourth water pipe respectively. The solution passing through the fourth water pipe is sprayed on the top of the inner cavity of the treatment chamber through the fifth water pipe and the second water spray head, so that the alkaline solution is fully in contact with the waste gas at the top of the inner cavity of the treatment chamber. The alkaline solution passing through the seventh water pipe is heated by the heater and flows out through the water distribution plate in a high-temperature form. Heating the alkaline solution in the entire inner cavity of the treatment chamber can further accelerate the dissolution rate of the waste gas and the alkaline solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 It is a schematic diagram of the top structure of the processing chamber of the present invention;

[0026] Figure 3 It is a schematic diagram of the internal structure of the waste collection box of the present invention;

[0027] Figure 4 It is a schematic diagram of the internal structure of the processing chamber of the present invention;

[0028] Figure 5 It is a schematic diagram of the connection structure of the filter box of the present invention;

[0029] Figure 6 This is a schematic diagram of the fifth water pipe connection structure of the present invention;

[0030] Figure 7 It is a schematic diagram of the spoiler installation structure of the present invention.

[0031] Description of the accompanying drawings: 1. Processing chamber; 11. First groove; 12. Exhaust pipe; 2. Waste collection box; 201. First motor; 202. Connecting roller; 203. Spring; 204. Scraper; 205. Ventilation hole; 21. Air inlet pipe; 211. Track; 212. Linear motor; 213. Scraper ring; 22. Air delivery pipe; 221. Second groove; 23. Air diffuser; 231. Connecting column; 232. Diverter plate; 3. First water pump; 31. First water pipe; 32. Connecting block; 33. Connecting pipe; 34. First water spray head; 4. Second water pipe; 41. One-way valve; 42. Filter box; 43. Top cover; 44. Second motor; 45. Filter frame; 46. Stirring plate; 47. Third water pipe; 471. Second water pump; 472. Fourth water pipe; 473. Fifth water pipe; 474. Second water spray head; 48. Dosing box; 5. Sixth water pipe; 51. Third water pump; 52. Heater; 53. Seventh water pipe; 54. Water distribution plate; 55. Connecting rod; 6. Third motor; 61. Spoiler; 62. Limit plate. DETAILED DESCRIPTION

[0032] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0033] Reference Figure 1-7 As shown, a waste gas recovery device for preparing potassium aurous cyanide comprises a processing chamber 1, an exhaust pipe 12 and an air inlet pipe 21 are fixedly installed on the top of the processing chamber 1, a second water pipe 4 is connected to one side of the processing chamber 1, a filter box 42 is fixedly connected to one end of the second water pipe 4, a dosing box 48 is fixedly installed on one side of the filter box 42, and a filter frame 45 is movably installed in the inner cavity of the second water pipe 4; it also includes a blocking mechanism for final treatment of the waste gas to be discharged; the blocking mechanism comprises a first water pump 3, the first water pump 3 is fixedly installed on the top of the processing chamber 1, a first water pipe 31 is fixedly connected to one side of the first water pump 3, the first water pipe 31 penetrates into the inner cavity of the processing chamber 1, two connecting blocks 32 are fixedly installed on the inner wall of the processing chamber 1, the two connecting blocks 32 are located on both sides of the bottom of the exhaust pipe 12 and are connected via a connecting pipe 33, one of the connecting blocks 32 is connected to the first water pump 3, and first water spray heads 34 are fixedly installed on the opposite surfaces of the two connecting blocks 32.

[0034] Waste gas is generated during the production of potassium gold cyanide. When treating the waste gas, the waste gas can be absorbed by contacting it with an alkaline solution.

[0035] When the present invention is used, the waste gas is first transported to the processing chamber 1 through the air inlet pipe 21, and the waste gas is discharged from the alkaline solution and dissolved in the alkaline solution. At this time, the alkaline solution will enter the filter box 42 through the second water pipe 4. In the filter box 42, the mixed liquid with harmful substances in the waste gas will contact with the metal salts to generate solids, which is convenient for the staff to take out the cabinet for treatment;

[0036] When the waste gas is transported to the inner cavity of the treatment chamber 1, the air pressure in the inner cavity of the treatment chamber 1 will increase. After the waste gas passes through the alkaline solution, the harmful substances are absorbed. At this time, the treated gas can be discharged. In order to avoid some harmful substances from being completely adsorbed during the discharge process, the alkaline solution in the treatment chamber 1 is sucked up by the first water pump 3 in cooperation with the first water pipe 31 and transmitted through the connecting pipe 33 and sprayed through the two first water heads 34. The two first water heads 34 are located at the bottom of the exhaust pipe 12. The waste gas will pass between the two first water heads 34 before being discharged through the exhaust pipe 12. This can absorb the harmful substances remaining in emphysema and ensure that the discharged gas is clean.

[0037] Further, such as Figure 3 As shown, a first groove 11 is provided on the outer surface of the processing chamber 1, a waste collecting box 2 is slidably installed on the inner surface of the first groove 11, a plurality of ventilation holes 205 are provided on one side of the waste collecting box 2, a first motor 201 is fixedly installed on the inner wall of the waste collecting box 2, a connecting roller 202 is fixedly connected to the output shaft of the first motor 201, a plurality of springs 203 are evenly and fixedly connected to the outer surface of the connecting roller 202, the plurality of springs 203 are divided into two groups, and each group of springs 203 is fixedly connected to a scraper 204.

[0038] When the present invention is in use, the exhaust gas enters the inner cavity of the processing chamber 1 through the air inlet pipe 21, and the exhaust gas will first enter the inner cavity of the waste collecting box 2, and then be discharged to the air supply pipe 22 through the ventilation hole 205 after passing through the inner cavity of the waste collecting box 2. In this process, some substances in the exhaust gas will be adsorbed on the surface of the waste collecting box 2, and the ventilation hole 205 may also be blocked. In order to avoid the ventilation hole 205 being blocked and causing poor air supply, the connecting roller 202 is rotated by the output shaft of the first motor 201, and the connecting roller 202 rotates on the surface of the ventilation hole 205 with the spring 203 and the scraper 204 to scrape off the substances remaining near the ventilation hole 205, and the substances in the exhaust gas will also be left behind when passing through the waste collecting box 2. The staff can clean the inner cavity of the waste collecting box 2 by taking out the waste collecting box 2 from the first groove 11.

[0039] Further, such as Figure 2As shown, two rails 211 are fixedly installed on the inner surface of the intake pipe 21 , and a linear motor 212 is slidably installed on the outer surface of the rail 211 . The two linear motors 212 are commonly fixedly connected to a scraper ring 213 , and the scraper ring 213 is slidably installed on the inner wall of the intake pipe 21 .

[0040] When the present invention is in use, the exhaust gas enters the inner cavity of the processing chamber 1 through the intake pipe 21. During this process, substances in the exhaust gas will stick to the inner wall of the intake pipe 21. The linear motor 212 drives the scraper ring 213 to slide. The scraper ring 213 can scrape the substances on the inner wall of the intake pipe 21, and finally the harmful substances will fall into the waste collection box 2.

[0041] Further, such as Figure 4 As shown, an air pipe 22 is fixedly installed on the inner wall of the processing chamber 1, a second groove 221 is opened on the top of the air pipe 22, the waste collecting box 2 is movably installed in the inner cavity of the second groove 221, an air diffuser plate 23 is fixedly connected to the bottom of the air pipe 22, connecting columns 231 are evenly fixedly installed on the outer surface of the air diffuser plate 23, three connecting columns 231 are all fixedly installed on the inner wall of the processing chamber 1, and a diverter plate 232 is fixedly installed on the top of the air diffuser plate 23.

[0042] When the present invention is in use, the exhaust gas enters the gas pipe 22 through the ventilation hole 205, and is then discharged through the diffuser plate 23. The diffuser plate 23 can disperse the exhaust gas and avoid directly discharging the exhaust gas, which causes the alkaline solution to be unable to fully contact with the exhaust gas and fully absorb the substances in the exhaust gas. After the exhaust gas is discharged through the diffuser plate 23, it will continue to float upward. At this time, the exhaust gas will pass through the diverter plate 232 and be dispersed again by the diverter plate 232, so that the exhaust gas can be fully combined with the alkaline solution.

[0043] Further, such as Figure 5 As shown, a one-way valve 41 is fixedly installed on the outer surface of the second water pipe 4, a top cover 43 is movably installed on the top of the filter box 42, the filter frame 45 is movably installed on the bottom of the top cover 43, a second motor 44 is fixedly installed on the top of the top cover 43, the output shaft of the second motor 44 passes through the inner cavity of the filter frame 45 and is fixedly connected to a stirring plate 46, and a dosing box 48 is fixedly installed on one side of the filter box 42.

[0044] When the present invention is in use, during the process of treating exhaust gas, the alkaline solution containing the exhaust gas will enter the filter box 42 through the second water pipe 4, and the one-way valve 41 can prevent the solution in the filter box 42 from entering the treatment chamber 1 again. The solution entering the filter box 42 contacts with the metal salts released in the dosing box 48 to generate solids, and the solids will be retained in the filter frame 45. The output shaft of the second motor 44 drives the stirring plate 46 to rotate, which can accelerate the contact between the metal salts and the alkaline solution and the speed of solid precipitation. The solids can be taken out by lifting the top cover 43 to facilitate the staff to handle the solids.

[0045] Further, such as Figure 5 and Figure 6 As shown, the outer surface of the filter box 42 is fixedly connected to a third water pipe 47, the top of the third water pipe 47 is fixedly connected to a second water pump 471, the top of the second water pump 471 is fixedly connected to a fourth water pipe 472, and one end of the fourth water pipe 472 penetrates into the inner cavity of the processing chamber 1;

[0046] One end of the fourth water pipe 472 is fixedly connected to a fifth water pipe 473 , and a plurality of second water spray heads 474 are fixedly installed on the outer surface of the fifth water pipe 473 .

[0047] When the present invention is in use, the liquid after contacting the metal salts will flow out from the third water pipe 47 under the action of the second water pump 471, and finally enter the treatment chamber 1 again through the fourth water pipe 472. After entering the treatment chamber 1, it will first enter the fifth water pipe 473, and then be sprayed out by several second water nozzles 474. There is no solution at the top of the inner cavity of the treatment chamber 1. Spraying the solution through the second water nozzle 474 can make the top of the inner cavity of the treatment chamber 1 always full of mist solution, so that the alkaline solution and the exhaust gas are fully contacted.

[0048] Further, such as Figure 7 As shown, a sixth water pipe 5 is fixedly installed on one side of the filter box 42, one end of the sixth water pipe 5 is fixedly connected to a third water pump 51, one side of the third water pump 51 is fixedly connected to a seventh water pipe 53, and the outer surface of the seventh water pipe 53 is fixedly connected to a heater 52;

[0049] One end of the seventh water pipe 53 penetrates into the inner cavity of the treatment chamber 1 and is fixedly connected to a water distribution plate 54. A plurality of connecting rods 55 are fixedly installed at the bottom of the water distribution plate 54, and a plurality of the connecting rods 55 are fixedly installed at the top of the water distribution plate 54.

[0050] A third motor 6 is fixedly installed on the top of the processing chamber 1, and three spoilers 61 are hinged on the output shaft of the third motor 6. Six limit plates 62 are fixedly installed on the output shaft of the spoiler 61. The six limit plates 62 are grouped in pairs, and the two limit plates 62 in the same group are located on both sides of two adjacent spoilers 61.

[0051] When the present invention is in use, a part of the alkaline solution after the solid is precipitated will be sucked out of the sixth water pipe 5 by the third water pump 51, and will be heated by the heater 52 when passing through the seventh water pipe 53, and will enter the processing chamber 1 again through the seventh water pipe 53 and be discharged through the water dividing plate 54. At this time, the output shaft of the third motor 6 rotates with the spoiler 61. The spoiler 61 will fluctuate up and down under the action of the alkaline solution, thereby causing the alkaline solution in the processing chamber 1 to fluctuate. This can accelerate the contact between the alkaline solution and the substances in the exhaust gas. At the same time, the limit plates 62 on the upper and lower sides of the spoiler 61 can limit the spoiler 61 to prevent the spoiler 61 from being stuck in one position.

[0052] Working principle: first, the exhaust gas is transported to the inner cavity of the processing chamber 1 through the air intake pipe 21, the exhaust gas first passes through the waste collecting box 2, and then enters the air delivery pipe 22 through the ventilation hole 205, and is finally discharged through the diffuser plate 23. During the discharge process, the exhaust gas is dispersed by the diffuser plate 23 and the diverter plate 232, so that the exhaust gas is fully in contact with the alkaline solution in the inner cavity of the processing chamber 1. When the exhaust gas passes through the air intake pipe 21 and the inner cavity of the waste collecting box 2, the substances in the exhaust gas will stick to the inner wall of the air intake pipe 21. The two linear motors 212 drive the scraper ring 213 to slide along the track 211 to clean the substances on the inner wall of the air intake pipe 21 to avoid affecting the exhaust gas transmission. The output shaft of the first motor 201 drives the connecting roller 202 to rotate, and the connecting roller 202 drives the spring 203 and the scraper 204 to scrape the side wall of the waste collecting box 2 to avoid the substances in the exhaust gas from clogging the ventilation hole 205.

[0053] The solution in the treatment chamber 1 is sucked out by the first water pump 3 and sprayed out from the bottom of the exhaust pipe 12 through the two first water spray heads 34. The waste gas can be treated once before the treated waste gas is discharged to avoid harmful substances still contained in the waste gas. When treating the waste gas, the alkaline solution in the treatment chamber 1 will enter the filter box 42 through the second water pipe 4. The dosing box 48 releases metal salts into the filter box 42 to precipitate the substances in the waste gas. The second motor 44 output shaft drives the stirring plate 46 to rotate, which can accelerate the reaction of the waste gas substances in the alkaline solution with the metal salts and speed up the precipitation of solids. Finally, the solids are retained by the filter frame 45. In the filter frame 45, the alkaline solution will be sucked out by the second water pump 471 and the third water pump 51 respectively, and finally enter the treatment chamber 1 through the seventh water pipe 53 and the fourth water pipe 472 respectively. The solution passing through the fourth water pipe 472 is sprayed on the top of the inner cavity of the treatment chamber 1 through the fifth water pipe 473 and the second water nozzle 474, so that the alkaline solution is fully in contact with the exhaust gas at the top of the inner cavity of the treatment chamber 1. The alkaline solution passing through the seventh water pipe 53 is heated by the heater 52 and flows out through the water dividing plate 54 in a high-temperature form. Heating the alkaline solution in the entire inner cavity of the treatment chamber 1 can further accelerate the dissolution rate of the exhaust gas and the alkaline solution.

[0054] Obviously, the above embodiments are merely examples for clear explanation and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from these are still within the protection scope of the invention.

Claims

1. A waste gas recovery device for preparing potassium gold cyanide, comprising a processing chamber (1), an exhaust pipe (12) and an air inlet pipe (21) are fixedly installed on the top of the processing chamber (1), a second water pipe (4) is connected through one side of the processing chamber (1), a filter box (42) is fixedly connected to one end of the second water pipe (4), a dosing box (48) is fixedly installed on one side of the filter box (42), and a filter frame (45) is movably installed in the inner cavity of the second water pipe (4); It also includes a blocking mechanism for final treatment of the exhaust gas to be discharged; Features: The blocking mechanism comprises a first water pump (3), the first water pump (3) is fixedly mounted on the top of the processing chamber (1), a first water pipe (31) is fixedly connected to one side of the first water pump (3), the first water pipe (31) penetrates into the inner cavity of the processing chamber (1), two connecting blocks (32) are fixedly mounted on the inner wall of the processing chamber (1), the two connecting blocks (32) are located on both sides of the bottom of the exhaust pipe (12) and are connected via a connecting pipe (33), one of the connecting blocks (32) is connected to the first water pump (3), and first water spray heads (34) are fixedly mounted on opposite surfaces of the two connecting blocks (32).

2. A waste gas recovery device for preparing potassium gold cyanide according to claim 1, characterized in that: The outer surface of the processing chamber (1) is provided with a first groove (11), a waste collection box (2) is slidably mounted on the inner surface of the first groove (11), a plurality of ventilation holes (205) are provided on one side of the waste collection box (2), a first motor (201) is fixedly mounted on the inner wall of the waste collection box (2), an output shaft of the first motor (201) is fixedly connected to a connecting roller (202), a plurality of springs (203) are evenly fixedly connected to the outer surface of the connecting roller (202), the plurality of springs (203) are divided into two groups, and each group of springs (203) is fixedly connected to a scraper (204).

3. A waste gas recovery device for preparing potassium gold cyanide according to claim 2, characterized in that: Two tracks (211) are fixedly mounted on the inner surface of the air intake pipe (21), a linear motor (212) is slidably mounted on the outer surface of the track (211), the two linear motors (212) are fixedly connected to a scraper ring (213), and the scraper ring (213) is slidably mounted on the inner wall of the air intake pipe (21).

4. A waste gas recovery device for preparing potassium gold cyanide according to claim 3, characterized in that: An air delivery pipe (22) is fixedly mounted on the inner wall of the processing chamber (1); a second groove (221) is formed on the top of the air delivery pipe (22); the waste collection box (2) is movably mounted in the inner cavity of the second groove (221); an air dispersion plate (23) is fixedly connected to the bottom of the air delivery pipe (22); connecting columns (231) are evenly fixedly mounted on the outer surface of the air dispersion plate (23); three connecting columns (231) are fixedly mounted on the inner wall of the processing chamber (1); and a diverter plate (232) is fixedly mounted on the top of the air dispersion plate (23).

5. A waste gas recovery device for preparing potassium gold cyanide according to claim 4, characterized in that: A one-way valve (41) is fixedly mounted on the outer surface of the second water pipe (4); a top cover (43) is movably mounted on the top of the filter box (42); the filter frame (45) is movably mounted on the bottom of the top cover (43); a second motor (44) is fixedly mounted on the top of the top cover (43); an output shaft of the second motor (44) passes through the inner cavity of the filter frame (45) and is fixedly connected to a stirring plate (46); and a dosing box (48) is fixedly mounted on one side of the filter box (42).

6. A waste gas recovery device for preparing potassium gold cyanide according to claim 5, characterized in that: A third water pipe (47) is fixedly connected to the outer surface of the filter box (42), a second water pump (471) is fixedly connected to the top of the third water pipe (47), a fourth water pipe (472) is fixedly connected to the top of the second water pump (471), and one end of the fourth water pipe (472) passes through the inner cavity of the processing chamber (1).

7. A waste gas recovery device for preparing potassium gold cyanide according to claim 6, characterized in that: One end of the fourth water pipe (472) is fixedly connected to a fifth water pipe (473), and a plurality of second water spray heads (474) are fixedly installed on the outer surface of the fifth water pipe (473).

8. A waste gas recovery device for preparing potassium gold cyanide according to claim 7, characterized in that: A sixth water pipe (5) is fixedly mounted on one side of the filter box (42); one end of the sixth water pipe (5) is fixedly connected to a third water pump (51); one side of the third water pump (51) is fixedly connected to a seventh water pipe (53); and the outer surface of the seventh water pipe (53) is fixedly connected to a heater (52).

9. A waste gas recovery device for preparing potassium gold cyanide according to claim 8, characterized in that: One end of the seventh water pipe (53) penetrates into the inner cavity of the processing chamber (1) and is fixedly connected to a water distribution plate (54); a plurality of connecting rods (55) are fixedly installed at the bottom of the water distribution plate (54); and a plurality of connecting rods (55) are fixedly installed at the top of the water distribution plate (54).

10. The waste gas recovery device for preparing potassium gold cyanide according to claim 9, characterized in that: A third motor (6) is fixedly mounted on the top of the processing chamber (1); three spoilers (61) are hingedly mounted on the output shaft of the third motor (6); six limit plates (62) are fixedly mounted on the output shaft of the spoiler (61); the six limit plates (62) are arranged in groups of two, and the two limit plates (62) in the same group are located on both sides of two adjacent spoilers (61).

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