Chemical waste gas collecting and purifying system

Abstract

The utility model discloses a chemical waste gas collecting and purifying system, which is applied to the field of chemical waste gas purification and comprises a purifying tank, a spraying mechanism is arranged on the purifying tank, a purifying mechanism is arranged in the purifying tank, a pretreatment mechanism is arranged on the side wall of the purifying tank, and the purifying mechanism is arranged on the side wall of the purifying tank. By arranging the purification tank, the spraying mechanism, the purification mechanism and the pretreatment mechanism, during use, waste gas is firstly filtered through the pretreatment mechanism, solid impurities in the waste gas are removed, then the filtered waste gas is discharged into the purification tank, and the waste gas is purified through the purification mechanism and the spraying mechanism; according to the waste gas purification tank, waste gas entering the purification tank can make contact with purification liquid, the purification liquid enters the filling layer and the catalyst layer, the waste gas can be better purified, and the purification efficiency of the waste gas is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical waste gas purification, and particularly relates to a chemical waste gas collection and purification system. Background Art

[0002] Waste gas purification mainly refers to the work of treating industrial waste gases such as dust particles, flue gas, odorous gases, and toxic and harmful gases generated in industrial sites. Common waste gas purifications include factory smoke waste gas purification, workshop dust waste gas purification, organic waste gas purification, waste gas odor purification, acid and alkali waste gas purification, and chemical waste gas purification.

[0003] The Chinese utility model patent currently announced as CN213286268U discloses an exhaust gas purification system, which is provided with a device body, a accommodating space is arranged inside the device body, an air inlet is arranged on the side wall of the lower part of the device body, an air outlet is arranged on the top of the device body, and an exhaust gas absorption component and a dehumidification component are arranged in the device body, wherein the exhaust gas absorption component includes a spray head and a collecting box, the spray head is arranged on the upper side of the collecting box, the collecting box and the spray head are connected through a circulation pipeline, an absorption liquid inlet is arranged on the circulation pipeline, a circulation pump is arranged on the circulation line, and a sewage outlet is arranged at the lower end of the collecting box. Through the above arrangement, not only can the two components in the exhaust gas be absorbed simultaneously, but also the large particulate matter in the exhaust gas can be filtered and discharged, which has the advantages of simple structure and strong exhaust gas purification ability.

[0004] This patent simply sprays the waste gas through a spray head, but the contact time between the waste gas and the purification liquid is limited, and the impurities in the waste gas cannot be purified well, which easily leads to a reduction in the purification effect of the chemical waste gas. Utility Model Content

[0005] The purpose of the utility model is to provide a chemical waste gas collection and purification system, which solves the problem that an existing chemical waste gas collection and purification system only sprays the waste gas through a spray head, but the contact time between the waste gas and the purification liquid is limited, and the impurities in the waste gas cannot be purified well, which easily causes the problem of reduced chemical waste gas purification effect.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: a chemical waste gas collection and purification system, comprising a purification tank, a spray mechanism is arranged on the purification tank, a purification mechanism is arranged inside the purification tank, and a pretreatment mechanism is arranged on the side wall of the purification tank;

[0007] The spray mechanism includes a rotating rod, a rotating ball, a spray hole, a mounting sleeve, a bolt, a liquid inlet pipe, a rotating groove, a rotating ring, a first gear, a second gear and a motor. The rotating rod is arranged on the purification tank, and one end of the rotating rod extends to the interior of the purification tank. The rotating ball is arranged on the rotating rod, and the spray hole is arranged on the rotating ball. The number of the spray holes is several and they are arranged circumferentially. The mounting sleeve is arranged on the rotating rod, and the mounting sleeve is fitted with the surface of the rotating ball. The bolt penetrates the mounting sleeve and enters the rotating ball. The liquid inlet pipe is arranged in the rotating rod, and the rotating groove is arranged on the inner wall of the rotating rod. The rotating ring is arranged on the liquid inlet pipe, and the rotating ring is located in the rotating groove. The first gear is arranged on the rotating rod, and the second gear is meshed and connected to the first gear. The motor is arranged on the second gear.

[0008] The above technical scheme is adopted, by setting a purification tank, a spray mechanism, a purification mechanism and a pretreatment mechanism, when in use, the exhaust gas is first filtered through the pretreatment mechanism to remove solid impurities in the exhaust gas, and then the filtered exhaust gas is discharged into the purification tank, and the exhaust gas is purified by the purification mechanism and the spray mechanism, wherein the spray mechanism includes a rotating rod, a rotating ball, a spray hole, a mounting sleeve, a bolt, a liquid inlet pipe, a rotating groove, a rotating ring, a first gear, a second gear and a motor. When in use, the purified liquid can be first input into the rotating ball through the liquid inlet pipe and the rotating rod, and then the output shaft of the motor is driven The second gear is driven to rotate. Since the second gear is meshed with the first gear, it can drive the first gear to rotate, and then drive the rotating rod to rotate, and then drive the rotating ball to rotate. Through centrifugal action, the purified liquid is discharged through the spray hole, and can evenly contact and react with the exhaust gas entering the purification tank. When the rotating rod rotates, the rotating ring can rotate in the rotating groove, and then the liquid inlet pipe can remain stationary during the rotation of the rotating rod, so that the purified liquid can better enter the rotating ball. The rotating ball can be fixed on the rotating rod by bolts and a mounting sleeve, which can increase the stability of the rotating ball.

[0009] Further: the purification mechanism includes a filling layer, a catalyst layer, an air outlet pipe and a gas filter, the filling layer is arranged inside the purification tank, the catalyst layer is arranged inside the filling layer, the air outlet pipe is arranged on the purification tank, and the gas filter is arranged on the air outlet pipe.

[0010] By adopting the above technical scheme, a filling layer, a catalyst layer, an air outlet pipe and a gas filter are set. When in use, the purification liquid is first allowed to enter the filling layer and the catalyst layer. The filling layer removes harmful substances in the exhaust gas by adsorption and chemical reaction. Then the catalyst layer is set in the filling layer. The catalyst in the catalyst layer can promote the reaction between harmful substances in the exhaust gas and the purification liquid, improve the purification efficiency, and the excess purification liquid enters the bottom of the purification tank. When the exhaust gas is discharged from the air outlet pipe, the exhaust gas can be further purified. The gas filter can allow the gas to pass through and prevent the purification liquid in the purification tank from passing through.

[0011] Further: the pretreatment mechanism includes a filter cavity, a filter layer, a honeycomb activated carbon layer, an air inlet, an air duct and a fan, the filter cavity is arranged on the side wall of the purification tank, the filter layer and the honeycomb activated carbon layer are both arranged inside the filter cavity, the air inlet is arranged at the lower end of the filter cavity and extends to the interior of the purification tank, the air duct is arranged at the upper end of the filter cavity, and the fan is arranged on the air duct.

[0012] By adopting the above technical scheme, a filter cavity, a filter layer, a honeycomb activated carbon layer, an air inlet, an air duct and a fan are set. When in use, the exhaust gas is first sucked into the filter cavity through the fan and the air duct, and then the solid impurities and oil impurities in the exhaust gas are filtered through the filter layer and the honeycomb activated carbon layer in the filter cavity, and then the filtered exhaust gas can enter the purification tank through the air inlet.

[0013] Further: the liquid inlet pipe is provided with a rotating groove, the number of the rotating grooves is several and they are arranged in a circle, a rotating ball is arranged inside the rotating groove, and the rotating ball is arranged in contact with the inner wall of the rotating rod.

[0014] By adopting the above technical solution, by setting a rotating groove and a rotating ball, when in use, the rotating groove is first set on the liquid inlet pipe, and the rotating ball is set in the rotating groove, and the rotating ball contacts the inner wall of the rotating rod. When the rotating rod rotates, the rotating ball can rotate in the rotating groove, thereby reducing the friction between the liquid inlet pipe and the rotating rod.

[0015] Further: a support plate is arranged on the motor, and the support plate contacts the top of the purification tank.

[0016] By adopting the above technical solution and providing a support plate, the support plate can provide support for the motor during use, so that the motor can work more stably.

[0017] Further: a filter plate is arranged in the air inlet.

[0018] By adopting the above technical solution, a filter plate is set. When in use, the filter plate is set in the air inlet. When the exhaust gas enters the purification tank through the air inlet, it can be further filtered by the filter plate, so that the exhaust gas entering the purification tank is free of solid impurities.

[0019] Furthermore: a liquid outlet pipe is provided at the bottom of the purification tank, and a control valve is provided on the liquid outlet pipe.

[0020] By adopting the above technical solution, by setting a liquid outlet pipe and a control valve, when purification is completed, the liquid outlet pipe can discharge the purified liquid in the purification tank, and then the control valve can control the liquid outlet pipe.

[0021] Further: support columns are provided at the bottom of the purification tank, the number of the support columns is four and they are arranged in a circle, and anti-slip pads are provided on the support columns.

[0022] By adopting the above technical solution, by setting the support column and the anti-skid pad, when in use, the support column can provide support for the purification tank, thereby improving the stability of the purification tank, and then the anti-skid pad can increase the friction between the support column and the ground, thereby further improving the stability of the purification tank.

[0023] In summary, the utility model has the following beneficial effects:

[0024] By setting up the spray mechanism, the purified liquid can be first input into the rotating ball through the liquid inlet pipe and the rotating rod, and then the output shaft of the motor drives the second gear to rotate. Since the second gear is meshed with the first gear, it can drive the first gear to rotate, and then drive the rotating rod to rotate, and then drive the rotating ball to rotate. Through centrifugal action, the purified liquid is discharged through the spray hole, which can evenly contact and react with the exhaust gas entering the purification tank. When the rotating rod rotates, the rotating ring can rotate in the rotating groove, and then the liquid inlet pipe can remain stationary during the rotation of the rotating rod, so that the purified liquid can better enter the rotating ball. The rotating ball can be fixed on the rotating rod by bolts and mounting sleeves, which can increase the stability of the rotating ball.

[0025] By setting up a purification mechanism, when in use, the purification liquid is first allowed to enter the filling layer and the catalyst layer. The filling layer removes harmful substances in the exhaust gas through adsorption and chemical reaction. Then the catalyst layer is set in the filling layer. The catalyst in the catalyst layer can promote the reaction between the harmful substances in the exhaust gas and the purification liquid, improve the purification efficiency, and the excess purification liquid enters the bottom of the purification tank. When the exhaust gas is discharged from the exhaust pipe, the exhaust gas can be further purified, wherein the gas filter can allow the gas to pass through and prevent the purification liquid in the purification tank from passing through.

[0026] Based on the above-mentioned improvements, the overall technical effect achieved by the present device is that the exhaust gas entering the purification tank can be in contact with the purification liquid, and the purification liquid enters the filling layer and the catalyst layer, which can better purify the exhaust gas and improve the purification efficiency of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0028] Figure 2 It is a left view of the utility model;

[0029] Figure 3 The utility model Figure 2 Stereoscopic cross-section at AA in the middle;

[0030] Figure 4 It is a structural schematic diagram of the rotating rod, the rotating ball and the spray hole of the utility model;

[0031] Figure 5 The utility model Figure 4 Enlarged view of point A in the middle.

[0032] In the figure, 1, purification tank; 2, spray mechanism; 3, purification mechanism; 4, pretreatment mechanism; 5, rotating groove; 6, rotating ball; 7, support plate; 8, filter plate; 9, liquid outlet pipe; 10, control valve; 11, support column; 12, anti-skid pad; 201, rotating rod; 202, rotating ball; 203, spray hole; 204, mounting sleeve; 205, bolt; 206, liquid inlet pipe; 207, rotating groove; 208, rotating ring; 209, first gear; 210, second gear; 211, motor; 301, filling layer; 302, catalyst layer; 303, air outlet pipe; 304, gas filter; 401, filter cavity; 402, filter layer; 403, honeycomb activated carbon layer; 404, air inlet; 405, air duct; 406, fan. DETAILED DESCRIPTION

[0033] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0034] Example:

[0035] See also Figure 1-Figure 5 The utility model provides a technical solution: a chemical waste gas collection and purification system, comprising a purification tank 1, a spray mechanism 2 is arranged on the purification tank 1, a purification mechanism 3 is arranged inside the purification tank 1, and a pretreatment mechanism 4 is arranged on the side wall of the purification tank 1;

[0036] The spray mechanism 2 includes a rotating rod 201, a rotating ball 202, a spray hole 203, a mounting sleeve 204, a bolt 205, a liquid inlet pipe 206, a rotating groove 207, a rotating ring 208, a first gear 209, a second gear 210 and a motor 211. The rotating rod 201 is arranged on the purification tank 1, one end of the rotating rod 201 extends to the inside of the purification tank 1, the rotating ball 202 is arranged on the rotating rod 201, the spray hole 203 is arranged on the rotating ball 202, the number of the spray holes 203 is a plurality and they are arranged circumferentially, and the mounting sleeve 204 It is arranged on the rotating rod 201, the mounting sleeve 204 is fitted with the surface of the rotating ball 202, the bolt 205 penetrates the mounting sleeve 204 and enters the rotating ball 202, the liquid inlet pipe 206 is arranged in the rotating rod 201, the rotating groove 207 is arranged on the inner wall of the rotating rod 201, the rotating ring 208 is arranged on the liquid inlet pipe 206, the rotating ring 208 is located in the rotating groove 207, the first gear 209 is arranged on the rotating rod 201, the second gear 210 is meshed and connected to the first gear 209, and the motor 211 is arranged on the second gear 210.

[0037] By setting the purification tank 1, the spray mechanism 2, the purification mechanism 3 and the pretreatment mechanism 4, when in use, the waste gas is first filtered by the pretreatment mechanism 4 to remove solid impurities in the waste gas, and then the filtered waste gas is discharged into the purification tank 1, and the waste gas is purified by the purification mechanism 3 and the spray mechanism 2;

[0038] When in use, first, the purified liquid can be input into the rotating ball 202 through the liquid inlet pipe 206 and the rotating rod 201, and then the output shaft of the motor 211 drives the second gear 210 to rotate. Since the second gear 210 is meshed and connected with the first gear 209, it can drive the first gear 209 to rotate, and then drive the rotating rod 201 to rotate, and then drive the rotating ball 202 to rotate. Through centrifugal action, the purified liquid is discharged through the spray hole 203, and can evenly contact and react with the exhaust gas entering the purification tank 1. When the rotating rod 201 rotates, the rotating ring 208 can rotate in the rotating groove 207, and then the liquid inlet pipe 206 remains stationary during the rotation of the rotating rod 201, so that the purified liquid can better enter the rotating ball 202. The rotating ball 202 can be fixed on the rotating rod 201 by the bolt 205 and the mounting sleeve 204, which can increase the stability of the rotating ball 202.

[0039] refer to Figure 3The purification mechanism 3 includes a filling layer 301, a catalyst layer 302, an air outlet pipe 303 and a gas filter 304. The filling layer 301 is arranged inside the purification tank 1, the catalyst layer 302 is arranged inside the filling layer 301, the air outlet pipe 303 is arranged on the purification tank 1, and the gas filter 304 is arranged on the air outlet pipe 303. By arranging the filling layer 301, the catalyst layer 302, the air outlet pipe 303 and the gas filter 304, when in use, the purification liquid is first allowed to enter the filling layer 301 and the catalyst layer 302, and the filling layer 301 removes harmful substances in the exhaust gas by adsorption and chemical reaction. Then the catalyst layer 302 is arranged in the filling layer 301. The catalyst in the catalyst layer 302 can promote the reaction between harmful substances in the exhaust gas and the purification liquid, improve the purification efficiency, and the excess purification liquid enters the bottom of the purification tank 1. When the exhaust gas is discharged from the air outlet pipe 303, the exhaust gas can be further purified, wherein the gas filter 304 can allow the gas to pass through and prevent the purification liquid in the purification tank 1 from passing through.

[0040] refer to Figure 3 The pretreatment mechanism 4 includes a filter cavity 401, a filter layer 402, a honeycomb activated carbon layer 403, an air inlet 404, an air duct 405 and a fan 406. The filter cavity 401 is arranged on the side wall of the purification tank 1, the filter layer 402 and the honeycomb activated carbon layer 403 are both arranged inside the filter cavity 401, the air inlet 404 is arranged at the lower end of the filter cavity 401 and extends to the inside of the purification tank 1, the air duct 405 is arranged at the upper end of the filter cavity 401, and the fan 406 is arranged in the air duct. On 405, by setting the filter cavity 401, the filter layer 402, the honeycomb activated carbon layer 403, the air inlet 404, the air duct 405 and the fan 406, when in use, the exhaust gas is first sucked into the filter cavity 401 through the fan 406 and the air duct 405, and then the solid impurities and oil impurities in the exhaust gas are filtered through the filter layer 402 and the honeycomb activated carbon layer 403 in the filter cavity 401, and then the filtered exhaust gas can enter the purification tank 1 through the air inlet 404.

[0041] refer to Figure 5 A rotating groove 5 is provided on the liquid inlet pipe 206. The rotating grooves 5 are in a plurality and are arranged in a circle. A rotating ball 6 is provided inside the rotating groove 5. The rotating ball 6 is arranged in contact with the inner wall of the rotating rod 201. By setting the rotating groove 5 and the rotating ball 6, when in use, the rotating groove 5 is firstly set on the liquid inlet pipe 206, and the rotating ball 6 is set in the rotating groove 5, and the rotating ball 6 is in contact with the inner wall of the rotating rod 201. When the rotating rod 201 rotates, the rotating ball 6 can rotate in the rotating groove 5, thereby reducing the friction between the liquid inlet pipe 206 and the rotating rod 201.

[0042] refer to Figure 1A support plate 7 is provided on the motor 211, and the support plate 7 is in contact with the top of the purification tank 1. By providing the support plate 7, when in use, the support plate 7 can provide support for the motor 211, so that the motor 211 can work more stably.

[0043] refer to Figure 3 A filter plate 8 is provided in the air inlet 404. By providing the filter plate 8, when in use, the filter plate 8 is provided in the air inlet 404. When the exhaust gas enters the purification tank 1 through the air inlet 404, it can be further filtered by the filter plate 8, so that the exhaust gas entering the purification tank 1 does not contain solid impurities.

[0044] refer to Figure 3 A liquid outlet pipe 9 is provided at the bottom of the purification tank 1, and a control valve 10 is provided on the liquid outlet pipe 9. By providing the liquid outlet pipe 9 and the control valve 10, when purification is completed, the liquid outlet pipe 9 can discharge the purified liquid in the purification tank 1, and then the control valve 10 can control the liquid outlet pipe 9.

[0045] refer to Figure 1 A support column 11 is provided at the bottom of the purification tank 1. There are four support columns 11 and they are arranged in a circle. An anti-slip pad 12 is provided on the support column 11. By providing the support column 11 and the anti-slip pad 12, when in use, the support column 11 can provide support for the purification tank 1 to improve the stability of the purification tank 1. Then, the anti-slip pad 12 can increase the friction between the support column 11 and the ground, which can further improve the stability of the purification tank 1.

[0046] Brief description of the usage process:

[0047] When in use, first, the exhaust gas is sucked into the filter chamber 401 through the fan 406 and the air duct 405, and then the solid impurities and oil impurities in the exhaust gas are filtered through the filter layer 402 and the honeycomb activated carbon layer 403 in the filter chamber 401, and then the filtered exhaust gas can enter the purification tank 1 through the air inlet 404, and the filter plate 8 is arranged in the air inlet 404. When the exhaust gas enters the purification tank 1 through the air inlet 404, it can be further filtered by the filter plate 8, so that the exhaust gas entering the purification tank 1 does not contain solid impurities;

[0048] Then, the purified liquid can be input into the rotating ball 202 through the liquid inlet pipe 206 and the rotating rod 201, and then the output shaft of the motor 211 drives the second gear 210 to rotate. Since the second gear 210 is meshed with the first gear 209, the first gear 209 can be driven to rotate, thereby driving the rotating rod 201 to rotate, and then driving the rotating ball 202 to rotate. Through centrifugal action, the purified liquid is discharged through the spray hole 203, and can evenly contact and react with the exhaust gas entering the purification tank 1. When the rotating rod 201 rotates, the rotating ring 208 can rotate in the rotating groove 207. The rotating ball 202 is rotated so that the liquid inlet pipe 206 remains stationary during the rotation of the rotating rod 201, so that the purified liquid can better enter the rotating ball 202, wherein the rotating ball 202 can be fixed on the rotating rod 201 by the bolt 205 and the mounting sleeve 204, which can increase the stability of the rotating ball 202, and the rotating groove 5 is arranged on the liquid inlet pipe 206, and the rotating ball 6 is arranged in the rotating groove 5, and the rotating ball 6 contacts the inner wall of the rotating rod 201. When the rotating rod 201 rotates, the rotating ball 6 can rotate in the rotating groove 5, thereby reducing the friction between the liquid inlet pipe 206 and the rotating rod 201;

[0049] Finally, the purified liquid enters the filling layer 301 and the catalyst layer 302. The filling layer 301 removes harmful substances in the exhaust gas by adsorption and chemical reaction. Then the catalyst layer 302 is arranged in the filling layer 301. The catalyst in the catalyst layer 302 can promote the reaction between harmful substances in the exhaust gas and the purified liquid, thereby improving the purification efficiency. The excess purified liquid enters the bottom of the purification tank 1. When the exhaust gas is discharged from the exhaust pipe 303, the exhaust gas can be further purified. The gas filter 304 can allow the gas to pass through, thereby preventing the purified liquid in the purification tank 1 from passing through.

[0050] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A chemical waste gas collection and purification system, comprising a purification tank (1), characterized in that: The purification tank (1) is provided with a spray mechanism (2), the interior of the purification tank (1) is provided with a purification mechanism (3), and the side wall of the purification tank (1) is provided with a pretreatment mechanism (4); The spray mechanism (2) comprises a rotating rod (201), a rotating ball (202), a spray hole (203), a mounting sleeve (204), a bolt (205), a liquid inlet pipe (206), a rotating groove (207), a rotating ring (208), a first gear (209), a second gear (210) and a motor (211); the rotating rod (201) is arranged on the purification tank (1); one end of the rotating rod (201) extends into the interior of the purification tank (1); the rotating ball (202) is arranged on the rotating rod (201); the spray hole (203) is arranged on the rotating ball (202); the number of the spray holes (203) is plural and they are arranged circumferentially; the mounting sleeve (204) The rotating ball (202) is arranged on the rotating rod (201), the mounting sleeve (204) is in contact with the surface of the rotating ball (202), the bolt (205) penetrates the mounting sleeve (204) and enters the rotating ball (202), the liquid inlet pipe (206) is arranged in the rotating rod (201), the rotating groove (207) is arranged on the inner wall of the rotating rod (201), the rotating ring (208) is arranged on the liquid inlet pipe (206), the rotating ring (208) is located in the rotating groove (207), the first gear (209) is arranged on the rotating rod (201), the second gear (210) is meshedly connected to the first gear (209), and the motor (211) is arranged on the second gear (210).

2. A chemical waste gas collection and purification system according to claim 1, characterized in that: The purification mechanism (3) comprises a filling layer (301), a catalyst layer (302), an air outlet pipe (303) and a gas filter (304); the filling layer (301) is arranged inside the purification tank (1); the catalyst layer (302) is arranged inside the filling layer (301); the air outlet pipe (303) is arranged on the purification tank (1); and the gas filter (304) is arranged on the air outlet pipe (303).

3. A chemical waste gas collection and purification system according to claim 1, characterized in that: The pretreatment mechanism (4) comprises a filter cavity (401), a filter layer (402), a honeycomb activated carbon layer (403), an air inlet (404), an air duct (405) and a fan (406); the filter cavity (401) is arranged on the side wall of the purification tank (1); the filter layer (402) and the honeycomb activated carbon layer (403) are both arranged inside the filter cavity (401); the air inlet (404) is arranged at the lower end of the filter cavity (401) and extends to the interior of the purification tank (1); the air duct (405) is arranged at the upper end of the filter cavity (401); and the fan (406) is arranged on the air duct (405).

4. A chemical waste gas collection and purification system according to claim 1, characterized in that: The liquid inlet pipe (206) is provided with a rotating groove (5), the rotating grooves (5) are in a plurality and are arranged in a circle, a rotating ball (6) is arranged inside the rotating groove (5), and the rotating ball (6) is arranged in contact with the inner wall of the rotating rod (201).

5. A chemical waste gas collection and purification system according to claim 1, characterized in that: A support plate (7) is provided on the motor (211), and the support plate (7) is in contact with the top of the purification tank (1).

6. A chemical waste gas collection and purification system according to claim 3, characterized in that: A filter plate (8) is provided in the air inlet (404).

7. A chemical waste gas collection and purification system according to claim 1, characterized in that: A liquid outlet pipe (9) is provided at the bottom of the purification tank (1), and a control valve (10) is provided on the liquid outlet pipe (9).

8. A chemical waste gas collection and purification system according to claim 1, characterized in that: The bottom of the purification tank (1) is provided with support columns (11), the number of the support columns (11) is four and they are arranged in a circle, and an anti-slip pad (12) is provided on the support columns (11).

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