Industrial waste gas treatment equipment

Abstract

The invention relates to the technical field of waste gas treatment equipment, in particular to industrial waste gas treatment equipment which comprises a spraying tank, a spraying device is arranged at the top of the spraying tank, a slag discharging opening is formed in the bottom of the spraying tank, a spirally upward grating plate is arranged in the spraying tank, a gas inlet pipe is arranged on one side of the lower end of the spraying tank, and a gas outlet pipe is arranged on the other side of the spraying tank. A through hole is formed in the bottom of the spraying tank, a suction fan is installed at the through hole and connected with a medicament tank through an air guide pipe, a net cover is installed at the bottom end of the interior of the medicament tank, the end, away from the suction fan, of the air guide pipe communicates with the net cover, and a rotating motor is arranged at the top of the medicament tank; and a rotating rod connected with the power output end of the rotating motor is installed at the position, located above the mesh enclosure, in the medicament tank, a plurality of sets of cutting knives are arranged on the rotating rod in an array mode, and an air outlet pipe is arranged at the top of the medicament tank.

Description

Technical Field

[0001] The present invention relates to the technical field of waste gas treatment equipment, and in particular to industrial waste gas treatment equipment. Background Art

[0002] Industrial waste gas refers to the general term for various pollutant gases discharged into the air during the combustion of fuel and production processes in enterprise factories. These waste gases include: carbon dioxide, carbon disulfide, hydrogen sulfide, fluoride, nitrogen oxides, chlorine, hydrogen chloride, carbon monoxide, sulfuric acid (mist), lead and mercury, beryllium, smoke and industrial dust. When discharged into the atmosphere, it will pollute the air. These substances enter the human body through the respiratory tract through different pathways. Some of them cause direct harm, while others have an accumulation effect, which will more seriously endanger human health.

[0003] At present, most exhaust gas spray towers spray liquid medicine through nozzles during the process of purifying exhaust gas, so that the liquid medicine and the exhaust gas interact with each other. Since sediment may be generated during the reaction between the liquid medicine and the exhaust gas, and some exhaust gas contains dust and other particulate matter, the sediment and dust particles will adhere to the grid plate under the spray head (used to disperse the exhaust gas to facilitate full contact with the sprayed agent). Maintenance personnel will need to enter the spray tower for cleaning later, which is troublesome. In addition, the existing spray tower needs to be designed with multi-layer spray heads to spray the rising exhaust gas. Multi-layer spray heads increase the cost of later maintenance. Using a single-layer spray cannot effectively guarantee the treatment effect of harmful gases in the exhaust gas. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide an industrial waste gas treatment device to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above objectives, the embodiments of the present invention provide the following technical solutions: An industrial waste gas treatment device comprises a spray tank, wherein a spray device is arranged on the top of the spray tank, a slag discharge port is arranged at the bottom of the spray tank, a spiral upward grid plate is arranged inside the spray tank, an air inlet pipe is arranged on one side of the lower end of the spray tank, a through hole is arranged at the bottom of the spray tank, a suction fan is installed at the through hole, the suction fan is connected to a medicine tank through an air guide pipe, a mesh cover is installed at the bottom end of the medicine tank, one end of the air guide pipe away from the suction fan is connected to the mesh cover, a rotating motor is arranged on the top of the medicine tank, a rotating rod connected to the power output end of the rotating motor is installed above the mesh cover inside the medicine tank, a plurality of groups of cutting knives are arranged in an array on the rotating rod, and an air outlet pipe is arranged on the top of the medicine tank.

[0006] Preferably, a check valve is provided inside the end of the air guide tube connected to the mesh cover, and the check valve includes a fixing plate, the fixing plate has an air vent, a mounting hole is opened at the center of the fixing plate, a telescopic rod is slidably installed in the mounting hole, a sealing plate that can be flush with the end of the air guide tube is provided on the top of the telescopic rod, a limiting plate is provided at the bottom end of the telescopic rod, and a spring is sleeved on the telescopic rod between the limiting plate and the fixing plate.

[0007] Preferably, the medicine tank contains medicine that can neutralize harmful gases in the exhaust gas, the cutting knife is set deep into the medicine, and the mesh cover is at a certain distance from the bottom of the medicine tank.

[0008] Preferably, the spray device includes a spray head, which is arranged on the top of the inner side of the spray tank, and a spray pump that can be connected to the spray head is arranged on the top of the outer side of the spray tank, and the spray pump can be connected to the external medium box, and a valve is arranged at the slag discharge port.

[0009] Preferably, the suction fan includes a fan housing, the bottom end of which is connected to the through hole at the top of the spray box, a suction motor is arranged on the top of the fan housing, a rotating rod which can be connected to the power output end of the suction motor is arranged inside the fan housing, fan blades are arranged at the bottom end of the rotating rod, and an air duct is connected to one side of the fan housing, and the horizontal height of the air duct is higher than the horizontal height of the fan blades.

[0010] Preferably, the grille plate has air holes, the grille plate is detachably mounted inside the spray tank, a detachable top cover is provided on the top of the spray tank, and the suction fan is detachably connected to the air duct.

[0011] Preferably, a detachable top cover is provided on the top of the medicine tank, the mesh cover is detachably connected to the end of the airway tube, the mesh cover is made of ceramic material, and the rotating rod and the cutting knife are both made of stainless steel material.

[0012] The beneficial effects of the embodiments of the present invention are: 1. A spiral grid plate is arranged inside the spray tank in the device, so the industrial waste gas can contact the grid plate when it moves upward inside the spray tank, and the grid plate can disperse the waste gas, and the floating objects in the industrial waste gas can be filtered when the industrial waste gas passes through the grid plate. Some of the filtered smoke and other particles will be attached to the bottom of the grid plate. When the attached smoke and other particles block the air holes on the grid plate, since the grid plate is arranged to rise in a spiral, the industrial waste gas can rise in a spiral along the bottom of the grid plate and continue to rise from the unblocked air holes on the grid plate. The spray device arranged on the top of the spray tank can spray water from the top of the spray tank or spray corresponding agents according to the composition of harmful gases in the industrial waste gas, which can remove the industrial gas. In order to further purify the finer smoke and other particles in the body, or preliminarily neutralize the harmful gases in industrial waste gas, the water or agent sprayed by the spraying device can fall on the top of the spiral grille plate, and the accumulated water or agent can form a water flow and flow downward along the top of the spiral grille plate. Under the action of the water flow, the smoke and other particles purified by the spray can be washed downward from the spiral grille plate. Since the grille plate is provided with air holes, the water will pass through the grille plate when passing through the air holes to form a water flow on the back of the grille plate. Similarly, the larger smoke and particles accumulated on the back of the grille plate can be washed away under the action of the water flow, avoiding the operator from entering the spray tank to clean the grille plate, reducing the labor intensity of the operator, and ensuring the purification efficiency of industrial waste gas.

[0013] 2. The air duct of the device can guide the industrial waste gas from the spray tank to the bottom of the medicine tank. Since the medicine tank is filled with medicine, bubbles can be formed when the industrial waste gas overflows from the bottom of the medicine tank. Since a mesh cover connected to the air duct is provided in the medicine tank, and the mesh cover has air holes, the bubbles can pass through the air holes on the mesh cover and enter the medicine in the medicine tank for contact and neutralization. When the industrial waste gas passes through the air holes on the mesh cover, it can be initially cut into smaller bubbles, which is convenient for full contact and neutralization with the medicine in the medicine tank. The mesh cover can also prevent the precipitate formed by the neutralization of harmful gases and medicines from falling on the air outlet end of the air duct, and prevent the precipitate from entering the air duct when the waste gas treatment is stopped, which increases the difficulty and intensity of cleaning by the later staff.

[0014] 3. In this device, a rotating rod is provided in the medicine tank, and a plurality of groups of cutting knives are arranged in an array on the rotating rod. Driven by the rotating motor, the cutting knives can be driven by the rotating rod to rotate in the medicine without rotating, and further cut the bubbles floating in the mesh cover, and divide the bubbles into smaller bubbles, thereby further increasing the contact area between the medicine and the bubbles, ensuring that the harmful gases in the industrial waste gas are further neutralized by the medicine, improving the treatment efficiency of the harmful gases in the industrial waste gas, and facilitating the removal of harmful gases in the industrial waste gas.

[0015] 4. The device is provided with a check valve. When the exhaust gas treatment is stopped and the suction fan stops conveying gas into the air guide pipe, the telescopic rod drives the sealing plate to re-seal the air outlet end of the air guide pipe under the action of the spring, which can prevent the medicine in the medicine tank from flowing back into the air guide pipe, thereby improving the practicality of the device.

[0016] 5. In this device, when the industrial waste gas is sprayed out from the mesh cover at the bottom of the medicine tank, small bubbles can be formed. When the small bubbles float upward at the bottom of the medicine, the small bubbles can be further broken into smaller bubbles under the rotating cutting of multiple sets of cutting knives, which is convenient for increasing the contact area between the industrial waste gas and the medicine and improving the treatment efficiency of the industrial waste gas; since some harmful gases in the industrial waste gas will form precipitates when neutralized with the medicine in the medicine tank, it is prevented that the precipitates fall on the bottom of the medicine tank and bury the mesh cover, increasing the difficulty of cleaning the mesh cover. Therefore, a certain distance is set between the mesh cover and the bottom of the medicine tank to prevent the precipitates from burying the mesh cover, resulting in the inability of the industrial waste gas to be quickly discharged from the mesh cover.

[0017] 6. The device removes the top cover of the spray tank to expose the spiral grille plate. Since the grille plate is detachably installed in the spray tank, it can be effectively taken out when the grille plate needs maintenance. When the top cover of the spray tank needs to be removed, since the suction fan is arranged on the top cover of the spray tank and the suction fan and the air duct are detachably connected, the air duct can be separated from the suction fan, which facilitates the removal of the top cover of the spray tank, thereby ensuring the practicality of the device.

[0018] 7. The device has a detachable top cover of the medicine tank, which makes it easy for the operator to effectively clean the sediment inside the medicine tank. The corrosion resistance of the mesh cover can be effectively improved by setting the mesh cover to a ceramic material. The stainless steel rotating rod and cutting knife can not only ensure its corrosion resistance, but also have a low cost, which can effectively reduce the subsequent maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is an internal cross-sectional view of the overall structure of the present invention; Figure 3 It is a schematic diagram of the internal structure of the spray tank; Figure 4 This is a schematic diagram of the internal structure of the medicine tank; Figure 5 for Figure 2 A magnified view of the structure of part A; Figure 6 for Figure 2 A magnified view of the structure of part B.

[0020] In the figure: 1. spray tank; 2. reagent tank; 3. slag discharge port; 4. grille plate; 5. spray pump; 6. spray head; 7. suction fan; 8. suction motor; 9. air duct; 10. rotating rod; 11. fan blades; 12. mesh cover; 13. fixed plate; 14. telescopic rod; 15. spring; 16. sealing plate; 17. limit plate; 18. exhaust pipe; 19. rotating motor; 20. rotating rod; 21. cutting knife; 22. fan housing; 23. air inlet pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1 An industrial waste gas treatment device, such as Figure 1-Figure 6 As shown, it includes a spray tank 1, a spray device is arranged on the top of the spray tank 1, a slag discharge port 3 is arranged at the bottom of the spray tank 1, a spiral upward grid plate 4 is arranged inside the spray tank 1, an air inlet pipe 23 is arranged on one side of the lower end of the spray tank 1, a through hole is arranged at the bottom of the spray tank 1, a suction fan 7 is installed at the through hole, the suction fan 7 is connected to the medicine tank 2 through an air guide pipe 9, a mesh cover 12 is installed at the bottom end of the medicine tank 2, the end of the air guide pipe 9 away from the suction fan 7 is connected to the mesh cover 12, a rotating motor 19 is arranged on the top of the medicine tank 2, a rotating rod 20 connected to the power output end of the rotating motor 19 is installed above the mesh cover 12 inside the medicine tank 2, a plurality of groups of cutting knives 21 are arranged in an array on the rotating rod 20, and an air outlet pipe 18 is arranged on the top of the medicine tank 2.

[0023] Industrial waste gas can enter the lower part of the spray tank 1 through the air inlet pipe 23. Since the suction fan 7 is arranged on the top of the spray tank 1, the industrial waste gas at the bottom of the spray tank 1 can be drawn upward. When the industrial waste gas floats upward in the spray tank 1, since the spiral grille plate 4 is arranged inside the spray tank 1, the industrial waste gas can contact the grille plate 4 when moving upward in the spray tank 1. The grille plate 4 can disperse the waste gas, and the floating matter in the industrial waste gas can be filtered when the industrial waste gas passes through the grille plate 4. Some other particulate matter such as the filtered smoke and dust will be attached to the bottom of the grille plate 4. When the attached smoke and dust and other particulate matter block the air holes on the grille plate 4, since the grille plate 4 is arranged to rise in a spiral, the industrial waste gas can rise in a spiral along the bottom of the grille plate 4 and continue to rise from the unblocked air holes on the grille plate 4. The spray device arranged on the top of the spray tank 1 can spray the inside of the spray tank 1 from Spraying water from the top or spraying corresponding agents according to the composition of harmful gases in industrial waste gas can further purify finer particles such as smoke and dust in industrial gas, or preliminarily neutralize harmful gases in industrial waste gas. The water or agents sprayed by the spraying device can fall on the top of the spiral grille plate 4. When the accumulated water or agents form a water flow, they can flow downward along the top of the spiral grille plate 4 in a spiral. Under the action of the water flow, the particles such as smoke and dust that have been sprayed and purified can be washed downward from the spiral grille plate 4. Since the grille plate 4 is provided with air holes, the water flow will pass through the grille plate 4 when passing through the air holes to form a water flow on the back of the grille plate 4. Similarly, under the action of the water flow, the larger smoke and dust and particles accumulated on the back of the grille plate 4 can be washed clean, avoiding the operator from entering the spray tank 1 to clean the grille plate 4, reducing the labor intensity of the operator, and ensuring the purification efficiency of industrial waste gas. There are still some harmful gases in the industrial waste gas that has been preliminarily purified by the spray tank 1. In order to prevent this part of the harmful gas from being discharged to the external environment, a suction fan 7 is arranged on the top of the spray tank 1. The suction fan 7 can guide the preliminarily purified harmful gas into the medicine tank 2 through the air guide pipe 9. The medicine tank 2 is filled with a medicine that can neutralize the harmful gas. The air guide pipe 9 can guide the industrial waste gas from the spray tank 1 to the bottom of the medicine tank 2. Since the medicine tank 2 is filled with medicine, when the industrial waste gas overflows from the bottom of the medicine tank 2, bubbles can be formed. A mesh cover 12 connected to the air duct 9 is provided, and the mesh cover 12 has air holes, so that bubbles can pass through the air holes on the mesh cover 12 and enter the medicine in the medicine tank 2 to contact and neutralize. The industrial waste gas can be initially cut into relatively small bubbles when passing through the air holes on the mesh cover 12, which is convenient for full contact and neutralization with the medicine in the medicine tank 2. The mesh cover 12 can also prevent the precipitate formed by the neutralization of harmful gases and medicines from falling on the outlet end of the air duct 9, and prevent the precipitate from entering the air duct 9 when the waste gas treatment is stopped, which increases the difficulty and intensity of cleaning by the later staff; When the bubbles come out of the mesh cover 12, they will float upward from the top of the medicine. Since a rotating rod 20 is provided in the medicine tank 2, and a plurality of groups of cutting knives 21 are arranged in an array on the rotating rod 20, the rotating rod 20 can drive the cutting knives 21 to rotate in the medicine without rotating, and further cut the bubbles floating in the mesh cover 12, and divide the bubbles into smaller bubbles, thereby further increasing the contact area between the medicine and the bubbles, ensuring that the harmful gases in the industrial waste gas are further neutralized by the medicine, improving the treatment efficiency of the harmful gases in the industrial waste gas, and facilitating the removal of harmful gases in the industrial waste gas.

[0024] A check valve is arranged inside one end of the air guide tube 9 connected to the mesh cover 12, and the check valve includes a fixing plate 13, the fixing plate 13 has an air vent, a mounting hole is opened in the center of the fixing plate 13, a telescopic rod 14 is slidably installed in the mounting hole, a sealing plate 16 that can be flush with the end of the air guide tube 9 is arranged on the top of the telescopic rod 14, a limiting plate 17 is arranged at the bottom end of the telescopic rod 14, and a spring 15 is sleeved on the telescopic rod 14 between the limiting plate 17 and the fixing plate 13.

[0025] In order to prevent the medicine in the medicine tank 2 from flowing back into the air guide pipe 9 when the waste gas treatment is stopped, a check valve is provided. When the industrial waste gas is treated, the gas in the air guide pipe 9 can push the blocking plate 16 at the top of the telescopic rod 14 upward under the action of the suction fan 7. Since the fixed plate 13 is fixedly arranged in the air guide pipe 9 and has air holes, the industrial waste gas can enter the medicine tank 2 from the air guide pipe 9 when the blocking plate 16 is pushed upward, so as to further treat the industrial waste gas. Since a limiting plate 17 is provided at the bottom end of the telescopic rod 14, a spring 15 is provided on the telescopic rod 14 between the limiting plate 17 and the fixed plate 13, and the spring 15 is in a compressed state at this time. When the exhaust gas treatment is stopped and the suction fan 7 stops conveying gas into the air duct 9, under the action of the spring 15, the telescopic rod 14 drives the sealing plate 16 to re-seal the air outlet end of the air duct 9, which can prevent the medicine in the medicine tank 2 from flowing back into the air duct 9, thereby improving the practicality of the device.

[0026] The medicine tank 2 contains medicine that can neutralize harmful gases in the exhaust gas. The cutting knife 21 is set deep into the medicine. The mesh cover 12 has a certain distance from the bottom of the medicine tank 2.

[0027] Since the reagent tank 2 is filled with a reagent capable of neutralizing harmful gases in the industrial waste gas, and the reagent can submerge the cutting blade 21, when the industrial waste gas is ejected from the mesh cover 12 at the bottom of the reagent tank 2, small bubbles can be formed. When the small bubbles float upward at the bottom of the reagent, the small bubbles can be further broken into smaller bubbles under the rotation and cutting of the multiple groups of cutting blades 21, thereby increasing the contact area between the industrial waste gas and the reagent and improving the treatment efficiency of the industrial waste gas. Since some harmful gases in industrial waste gas will form precipitates when neutralized with the reagents in the reagent tank 2, in order to prevent the precipitates from falling on the bottom of the reagent tank 2 and burying the mesh cover 12, thereby increasing the difficulty of cleaning the mesh cover 12, a certain distance is set between the mesh cover 12 and the bottom of the reagent tank 2 to prevent the precipitates from burying the mesh cover 12 and causing the industrial waste gas to be unable to be quickly discharged from the mesh cover 12.

[0028] The spray device includes a spray head 6, which is arranged on the top of the inner side of the spray tank 1. A spray pump 5 that can be connected to the spray head 6 is arranged on the top of the outer side of the spray tank 1. The spray pump 5 can be connected to the external medium box. A valve is arranged at the slag discharge port 3.

[0029] The external medium box is filled with water or other agents that can neutralize harmful gases in industrial waste gas. When the industrial waste gas enters the spray tank 1 through the air inlet pipe 23, the medium in the medium box is sucked into the spray head 6 by the operation of the spray pump 5, and sprayed into the spray tank 1 through the spray head 6 to filter the smoke or particulate matter in the industrial waste gas. The smoke and particulate matter are filtered out of the industrial waste gas under the action of the spray head 6 and accumulate at the bottom of the spray tank 1. Since the bottom of the spray tank 1 has a slag discharge port 3 and a valve is provided at the slag discharge port 3, the valve can be opened as needed to discharge the smoke and other particulate matter in the spray tank 1.

[0030] The suction fan 7 includes a fan housing 22, the bottom end of which is connected to the through hole at the top of the spray box, a suction motor 8 is arranged on the top of the fan housing 22, a rotating rod 10 which can be connected to the power output end of the suction motor 8 is arranged inside the fan housing 22, a fan blade 11 is arranged at the bottom end of the rotating rod 10, and an air duct 9 is connected to one side of the fan housing 22, and the horizontal height of the air duct 9 is higher than the horizontal height of the fan blade 11.

[0031] When industrial waste gas is introduced into the spray tank 1, the suction motor 8 can drive the rotating rod 10 to rotate. Since the bottom end of the rotating rod 10 is provided with a fan blade 11, the industrial waste gas in the spray tank 1 can be sucked into the fan housing 22 under the action of the fan blade 11. Since the fan blade 11 is arranged at the bottom of the fan housing 22 and the side of the fan housing 22 is provided with an air duct 9, the industrial waste gas can be effectively sucked into the air duct 9 and enter the medicine tank 2 through the air duct 9.

[0032] Embodiment 2 On the basis of the first embodiment, the grille plate 4 has air holes, the grille plate 4 is detachably installed inside the spray tank 1, a detachable top cover is provided on the top of the spray tank 1, and the suction fan 7 is detachably connected to the air duct 9.

[0033] After a long period of use, when the interior of the spray tank 1 needs to be cleaned and maintained, the top cover of the spray tank 1 is removed to expose the spiral grille plate 4. Since the grille plate 4 is detachably installed in the spray tank 1, it can be effectively taken out when the grille plate 4 needs maintenance. When the top cover of the spray tank 1 needs to be removed, since the suction fan 7 is arranged on the top cover of the spray tank 1, and the suction fan 7 is detachably connected to the air duct 9, the air duct 9 can be separated from the suction fan 7, which facilitates the removal of the top cover of the spray tank 1, thereby ensuring the practicality of the device.

[0034] A detachable top cover is arranged on the top of the medicine tank, the mesh cover is detachably connected to the end of the airway tube, the mesh cover is made of ceramic material, and the rotating rod and the cutting knife are both made of stainless steel material.

[0035] Since some harmful gases in industrial waste gas will form sediment when neutralized with chemicals, in order to effectively clean the sediment when stopping the waste gas treatment, the detachable chemical tank top cover can facilitate the operator to effectively clean the sediment inside the chemical tank. The corrosion resistance of the mesh cover can be effectively improved by setting the mesh cover to ceramic material, and the stainless steel rotating rod and cutting knife can not only ensure its corrosion resistance, but also have low cost, which can effectively reduce the subsequent maintenance cost.

[0036] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. An industrial waste gas treatment device, comprising a spray tank (1), wherein a spray device is arranged on the top of the spray tank (1), and a slag discharge port (3) is arranged on the bottom of the spray tank (1), characterized in that: A spiral upward grille plate (4) is arranged inside the spray tank (1), an air inlet pipe (23) is arranged on one side of the lower end of the spray tank (1), a through hole is arranged at the bottom of the spray tank (1), a suction fan (7) is installed at the through hole, the suction fan (7) is connected to the medicine tank (2) through an air guide pipe (9), a mesh cover (12) is installed at the bottom end of the medicine tank (2), one end of the air guide pipe (9) away from the suction fan (7) is connected to the mesh cover (12), a rotating motor (19) is arranged on the top of the medicine tank (2), a rotating rod (20) connected to the power output end of the rotating motor (19) is arranged above the mesh cover (12) inside the medicine tank (2), a plurality of groups of cutting knives (21) are arranged in an array on the rotating rod (20), and an air outlet pipe (18) is arranged on the top of the medicine tank (2).

2. The industrial waste gas treatment equipment according to claim 1, characterized in that: A check valve is arranged inside one end of the air guide tube (9) connected to the mesh cover (12), and the check valve comprises a fixing plate (13), the fixing plate (13) has an air hole, a mounting hole is opened at the center of the fixing plate (13), a telescopic rod (14) is slidably mounted in the mounting hole, a blocking plate (16) which can be flush with the end of the air guide tube (9) is arranged at the top of the telescopic rod (14), a limiting plate (17) is arranged at the bottom end of the telescopic rod (14), and a spring (15) is sleeved on the telescopic rod (14) between the limiting plate (17) and the fixing plate (13).

3. The industrial waste gas treatment equipment according to claim 2, characterized in that: The medicine tank (2) contains medicine that can neutralize harmful gases in the exhaust gas, the cutting knife (21) is set deep into the medicine, and the mesh cover (12) is at a certain distance from the bottom of the medicine tank (2).

4. The industrial waste gas treatment equipment according to claim 3, characterized in that: The spray device comprises a spray head (6), wherein the spray head (6) is arranged at the top of the inner side of the spray tank (1), and a spray pump (5) which can be connected to the spray head (6) is arranged at the top of the outer side of the spray tank (1), and the spray pump (5) can be connected to an external medium box, and a valve is arranged at the slag discharge port (3).

5. The industrial waste gas treatment equipment according to claim 4, characterized in that: The suction fan (7) comprises a fan housing (22), the bottom end of the fan housing (22) is connected to the through hole at the top of the spray box, a suction motor (8) is arranged on the top of the fan housing (22), a rotating rod (10) which can be connected to the power output end of the suction motor (8) is arranged inside the fan housing (22), a fan blade (11) is arranged at the bottom end of the rotating rod (10), and an air guide pipe (9) is connected to one side of the fan housing (22), and the horizontal height of the air guide pipe (9) is higher than the horizontal height of the fan blade (11).

6. The industrial waste gas treatment equipment according to claim 5, characterized in that: The grille plate (4) has air holes, and the grille plate (4) is detachably mounted inside the spray tank (1). A detachable top cover is provided on the top of the spray tank (1), and the suction fan (7) is detachably connected to the air guide pipe (9).

7. The industrial waste gas treatment equipment according to claim 6, characterized in that: The top of the medicine tank (2) is provided with a detachable top cover, the mesh cover (12) is detachably connected to the end of the airway tube (9), the mesh cover (12) is made of ceramic material, and the rotating rod (20) and the cutting knife (21) are both made of stainless steel material.

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