VOCs washing system

Abstract

The invention relates to the technical field of waste gas purification, in particular to a VOCs washing system which comprises an acid pickling tank, the output end of the acid pickling tank is connected with an alkali washing tank, and the output end of the alkali washing tank is connected with a water washing tank. According to the device, a filter plate horizontally ascends, objects deposited on the filter plate ascend, so that the sediment bodies are prevented from blocking a liquid inlet, the filter plate ascends to push a lifting pipe and a connecting rod to ascend, so that the lifting pipe drives a second scraping plate and a second L-shaped frame to ascend, and due to limiting of a sliding block and a key groove, the second scraping plate and the second L-shaped frame can ascend; the second L-shaped frame is used for treating the first scraper to prevent sediments from being attached to the surface of the first scraper, and the first L-shaped frame is used for treating the second scraper to prevent sediments from being attached to the surface of the second scraper, so that the service life of the first scraper and the second scraper is prolonged, and the replacement frequency of the first scraper and the second scraper is reduced; the waste gas treatment efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of waste gas purification, and in particular to a VOCs washing 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. The existing technology uses liquid absorption methods to treat VOCs gases. This method has relatively high economic benefits and is relatively simple to maintain.

[0003] According to a device for treating VOCs gas using flue gas provided by Chinese patent authorization announcement No. CN212167011U, the device includes: a pre-reaction tank, the pre-reaction tank is used for the mutual mixing reaction of blast furnace flue gas and incinerator flue gas; a gas capturer, the gas capturer is used for further capturing flue gas; a desulfurization reaction tank, the desulfurization reaction tank is used for the mutual mixing reaction of desulfurizer and flue gas; a desulfurization agent spraying device is arranged on the top of the desulfurization reaction tank; the pre-reaction tank, the gas capturer, and the desulfurization reaction tank are connected in sequence. The device for treating VOCs gas using flue gas of the utility model has a simple structure, low cost, and small footprint. The device can realize efficient and harmless treatment of VOCs gas, and the generated product only needs simple solid waste treatment, without introducing too much treatment equipment, which is green and environmentally friendly.

[0004] However, when waste gas is treated by spraying, some waste gas and solution will be unevenly mixed, which will reduce the efficiency of waste gas treatment. In addition, when the desulfurizer spraying device is spraying, the sprayed solution will be splashed onto the inner wall of the tower body, resulting in waste of solution and increasing the cost of waste gas treatment. Summary of the invention

[0005] To this end, the present invention provides a VOCs washing system to solve the above-mentioned problems.

[0006] The present invention provides the following technical solution: a VOCs washing system, comprising an acid washing tank, wherein the output end of the acid washing tank is connected to an alkali washing tank, and the output end of the alkali washing tank is connected to a water washing tank, and the inner walls of the acid washing tank, the alkali washing tank and the water washing tank are all fixedly installed with liquid level gauges, and the liquid inlets of the acid washing tank, the alkali washing tank and the water washing tank are all fixedly installed with liquid inlet electric valves, and the liquid outlets of the acid washing tank, the alkali washing tank and the water washing tank are all fixedly installed with liquid discharge electric valves; The pickling tank includes a pickling component, and the pickling component is used to process VOCs gas; An anti-deposition component, wherein the bottom of the pickling component is provided with an anti-deposition component, and the anti-deposition component is used to prevent the deposition of the product; A support frame is fixedly installed at the bottom of the pickling component, and the support frame is used to support the pickling component.

[0007] As a preferred solution of the present invention, the pickling component includes a tank body, the bottom of the tank body is fixedly connected to the top of the support frame, the top of the tank body is fixedly connected to a limiting ring, the top of the limiting ring is fixedly connected to an external toothed ring, and the top of the external toothed ring is fixedly connected to a sealing plate; The anti-deposition component includes a fixing frame, the bottom of the fixing frame is fixedly connected to the top of the supporting frame, a second connecting hole is penetrated through the bottom of the tank body, a sliding rod is slidably connected to the hole wall of the second connecting hole, and a filter plate is fixedly connected to the top of the sliding rod.

[0008] As a preferred solution of the present invention, a first connecting hole is formed through the top of the sealing plate, a first rotating rod is rotatably connected to the hole wall of the first connecting hole, a driving gear is fixedly connected to the bottom of the first rotating rod, a limited circular plate is fixedly connected to the bottom of the driving gear, a driven gear is meshed with the surface of the driving gear, the surface of the driven gear is meshed with the teeth of the outer gear ring, a connecting tube is fixedly connected to the bottom of the driven gear, and the surface of the connecting tube is in contact with the surface of the outer ring of the limiting circular plate and the surface of the inner ring of the limiting ring.

[0009] As a preferred solution of the present invention, the number of the driven gears is two, the two driven gears are symmetrically distributed left and right, and the bottom of the driven gear is slidably connected to the surface of the limiting circular plate and the top of the limiting ring.

[0010] As a preferred solution of the present invention, the surface of the outer ring of the filter plate is slidably connected to the inner wall of the tank body, the bottom of the sliding rod is fixedly connected to a support plate, the inner wall of the support plate is threadedly connected to a screw, and the inner wall of the fixing frame is rotatably connected to the surface of the screw.

[0011] As a preferred solution of the present invention, a first motor is fixedly connected to the bottom of the fixing frame, and an output end of the first motor is fixedly connected to the bottom of the screw via a coupling.

[0012] As a preferred solution of the present invention, a second motor is fixedly connected to the top of the sealing plate, and an output end of the second motor is fixedly connected to the top of the first rotating rod via a coupling.

[0013] As a preferred solution of the present invention, the surface fixing sleeve of the connecting tube is provided with an external fixing tube, the top fixing sleeve on the surface of the external fixing tube is provided with a connecting ring, the surface of the connecting ring is fixedly connected to a first L-shaped frame, the surface of the connecting ring is fixedly connected to a first scraper, key grooves are provided on the left and right sides of the inner wall of the connecting tube, a sealing ring is fixedly connected to the bottom of the connecting tube, a connecting rod is slidably connected to the inner wall of the sealing ring, sliders are fixedly connected to the left and right sides of the surface of the connecting rod, the surface of the slider is slidably connected to the groove wall of the key groove, the surface of the connecting rod is slidably connected to the inner wall of the connecting tube, a lifting tube is provided on the bottom fixing sleeve on the surface of the connecting rod, the inner wall of the lifting tube is slidably connected to the outer wall of the external fixing tube, the outer wall of the lifting tube is slidably connected to one side of the first scraper, a plurality of water leakage grooves are provided on the surface of the lifting tube, a second L-shaped frame is fixedly connected to the surface of the lifting tube, and a second scraper is fixedly connected to the surface of the lifting tube.

[0014] As a preferred solution of the present invention, the surface of the second scraper is slidably connected to the inner wall of the first L-shaped frame, the second scraper and the first L-shaped frame are located on the same axis, the surface of the first scraper is slidably connected to the inner wall of the second L-shaped frame, and the first scraper and the second L-shaped frame are located on the same axis.

[0015] As a preferred solution of the present invention, the number of the second scraper and the number of the first L-shaped frame are both four, and the four second scrapers and the first L-shaped frame are distributed in a circular array; the number of the first scraper and the second L-shaped frame are both four, and the four first scrapers and the second L-shaped frame are distributed in a circular array, and the angle between two adjacent first scrapers and the first L-shaped frame is forty-five degrees.

[0016] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the first scraper and the second scraper scrape off the solution attached to the inner wall of the tank body, reducing the loss of the solution, thereby reducing the treatment cost of the exhaust gas, the filter plate rises horizontally, and the objects deposited on the filter plate rise, thereby preventing the deposited objects from blocking the liquid inlet, and the filter plate rises, which can also push the lifting tube and the connecting rod to rise, so that the lifting tube drives the second scraper and the second L-shaped frame to rise, due to the limitation of the slider and the keyway, the second scraper and the second L-shaped frame can rise, so that the second L-shaped frame processes the first scraper to prevent the sediment from adhering to the surface of the first scraper, and the first L-shaped frame processes the second scraper to prevent the sediment from adhering to the surface of the second scraper, thereby extending the service life of the first scraper and the second scraper, reducing the replacement frequency of the first scraper and the second scraper, and improving the treatment efficiency of the exhaust gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2It is a schematic diagram of the structure of the pickling component and the anti-deposition component in the present invention; Figure 3 It is a cross-sectional view of the structure of the pickling component and the anti-deposition component in the present invention; Figure 4 The local structure of the pickling component in the present invention is shown in FIG. Figure 1 ; Figure 5 The local structure of the pickling component in the present invention is shown in FIG. Figure 2 ; Figure 6 This is an enlarged view of the self-cleaning structure of the pickling component in the present invention; Figure 7 It is an enlarged view of the connecting pipe structure in the present invention; Figure 8 For the present invention Figure 5 A magnified view of the structure at A; Fig. 9 For the present invention Figure 7 A magnified view of the structure at B in FIG. Fig.10 This is a flow chart of waste gas treatment in the present invention.

[0018] In the figure: 1, pickling tank; 101, pickling parts; 102, anti-deposition parts; 103, support frame; 10101, second motor; 10102, sealing plate; 10103, tank body; 10104, outer gear ring; 10105, limit ring; 10106, limit circular plate; 10107, driving gear; 10108, driven gear; 10109, first rotating rod; 10110, connecting pipe; 10111, connecting ring; 10112, first An L-shaped frame; 10113, a first scraper; 10114, a lifting tube; 10115, a connecting rod; 10116, a second scraper; 10117, a second L-shaped frame; 10118, a keyway; 10119, a sealing ring; 10120, an external fixing tube; 10121, a slider; 10201, a first motor; 10202, a fixing frame; 10203, a screw rod; 10204, a sliding rod; 10205, a support plate; 10206, a filter plate. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-10 The technical solution provided by the present invention specifically includes the following embodiments: Embodiment: A VOCs washing system comprises a pickling tank 1, wherein the inner walls of the pickling tank 1, the alkali washing tank and the water washing tank are all fixedly installed with liquid level gauges, the liquid inlets of the pickling tank 1, the alkali washing tank and the water washing tank are all fixedly installed with liquid inlet electric valves, and the liquid outlets of the pickling tank 1, the alkali washing tank and the water washing tank are all fixedly installed with liquid discharge electric valves; The pickling tank 1, the alkali washing tank and the water washing tank are used to carry out pickling treatment, alkali washing treatment and water washing treatment on VOCs gas respectively. The pickling tank 1, the alkali washing tank and the water washing tank are all provided with automatic liquid replenishment and discharge system, which includes a liquid level gauge, a liquid inlet electric valve and a liquid discharge electric valve. When the liquid level gauge detects that the liquid level in the pickling tank 1, the alkali washing tank and the water washing tank is too low, the liquid inlet electric valve opens to replenish the liquid in the pickling tank 1, the alkali washing tank and the water washing tank, and the liquid inlet electric valve closes after reaching a predetermined height. When the liquid level gauge detects that the liquid level in the pickling tank 1, the alkali washing tank and the water washing tank is too high, the liquid discharge electric valve discharges the liquid in the pickling tank 1, the alkali washing tank and the water washing tank, and the liquid discharge electric valve closes after reaching a predetermined height.

[0021] The pickling tank 1 includes a pickling component 101, which is used to process VOCs gas. An air inlet valve is fixedly installed at the bottom of the pickling tank 1, and an air outlet valve is fixedly installed at the top of the surface of the pickling tank 1. An anti-deposition component 102 is provided at the bottom of the pickling component 101, and the anti-deposition component 102 is used to prevent the deposition of the product; A support frame 103 is fixedly installed at the bottom of the pickling component 101 , and the support frame 103 is used to support the pickling component 101 .

[0022] The pickling component 101 includes a tank body 10103, the bottom of the tank body 10103 is fixedly connected to the top of the support frame 103, the top of the tank body 10103 is fixedly connected to a limit ring 10105, the top of the limit ring 10105 is fixedly connected to an outer toothed ring 10104, and the top of the outer toothed ring 10104 is fixedly connected to a sealing plate 10102; a first connecting hole is formed through the top of the sealing plate 10102, the hole wall of the first connecting hole is rotatably connected to a first rotating rod 10109, and the bottom of the first rotating rod 10109 is fixedly connected to a driving gear 10107, and the driving gear The bottom of the wheel 10107 is fixedly connected to the limiting circular plate 10106, the surface of the driving gear 10107 is meshed with the driven gear 10108, the surface of the driven gear 10108 is meshed with the teeth of the outer gear ring 10104, the bottom of the driven gear 10108 is fixedly connected to the connecting tube 10110, the surface of the connecting tube 10110 is in contact with the surface of the outer ring of the limiting circular plate 10106 and the surface of the inner ring of the limiting ring 10105; the surface of the connecting tube 10110 is fixedly sleeved with an outer fixing tube 10120, and the top fixing sleeve of the surface of the outer fixing tube 10120 is A connecting ring 10111 is provided, a first L-shaped frame 10112 is fixedly connected to the surface of the connecting ring 10111, a first scraper 10113 is fixedly connected to the surface of the connecting ring 10111, key grooves 10118 are provided on the left and right sides of the inner wall of the connecting pipe 10110, a sealing ring 10119 is fixedly connected to the bottom of the connecting pipe 10110, a connecting rod 10115 is slidably connected to the inner wall of the sealing ring 10119, a slider 10121 is fixedly connected to the left and right sides of the surface of the connecting rod 10115, and the surface of the slider 10121 is slidably connected to the groove wall of the key groove 10118 Sliding connection, the surface of the connecting rod 10115 is slidably connected to the inner wall of the connecting pipe 10110, the bottom fixed sleeve of the surface of the connecting rod 10115 is provided with a lifting pipe 10114, the inner wall of the lifting pipe 10114 is slidably connected to the outer wall of the outer fixed pipe 10120, the outer wall of the lifting pipe 10114 is slidably connected to one side of the first scraper 10113, a plurality of water leakage grooves are provided on the surface of the lifting pipe 10114, the surface of the lifting pipe 10114 is fixedly connected to the second L-shaped frame 10117, and the surface of the lifting pipe 10114 is fixedly connected to the second scraper 10116; By starting the second motor 10101, the second motor 10101 rotates forward, so that the first rotating rod 10109 rotates forward, driving the driving gear 10107 and the limiting circular plate 10106 to rotate forward. Since the outer gear ring 10104 and the limiting ring 10105 are in a fixed state, the driven gear 10108 performs planetary motion along the gap formed by the limiting circular plate 10106 and the limiting ring 10105, so that the first scraper 10113 and the second scraper 10116 fully mix the liquid and the gas. During the mixing process, the driven gear 10108 moves along the gap formed by the limiting circular plate 10106 and the limiting ring 10105. The outer fixed tube 10120, the connecting tube 10110, the connecting rod 10115 and the lifting tube 10114 are in a transverse fixed state through the limitation of the slider 10121 and the keyway 10118. The connecting rod 10115 and the lifting tube 10114 cannot rotate and cannot fall off the connecting tube 10110, so that the first scraper 10113 and the second scraper 10116 can process the inner wall of the tank body 10103, so that the first scraper 10113 and the second scraper 10116 can scrape off the solution attached to the inner wall of the tank body 10103, thereby reducing the loss of the solution and thus reducing the treatment cost of the exhaust gas; There are two driven gears 10108, which are symmetrically distributed on the left and right sides. The bottom of the driven gear 10108 is slidably connected with the surface of the limiting circular plate 10106 and the top of the limiting ring 10105. The surface of the second scraper 10116 is slidably connected to the inner wall of the first L-shaped frame 10112, and the second scraper 10116 and the first L-shaped frame 10112 are located on the same axis. The surface of the first scraper 10113 is slidably connected to the inner wall of the second L-shaped frame 10117, and the first scraper 10113 and the second L-shaped frame 10117 are located on the same axis.

[0023] There are four second scrapers 10116 and four first L-shaped frames 10112, which are distributed in a circular array. There are four first scrapers 10113 and four second L-shaped frames 10117, which are distributed in a circular array. The angle between two adjacent first scrapers 10113 and the first L-shaped frame 10112 is forty-five degrees.

[0024] The anti-deposition component 102 includes a fixing frame 10202, the bottom of which is fixedly connected to the top of the support frame 103, a second connecting hole is formed through the bottom of the tank body 10103, a sliding rod 10204 is slidably connected to the hole wall of the second connecting hole, and a filter plate 10206 is fixedly connected to the top of the sliding rod 10204; the surface of the outer ring of the filter plate 10206 is slidably connected to the inner wall of the tank body 10103, the bottom of the sliding rod 10204 is fixedly connected to a support plate 10205, the inner wall of the support plate 10205 is threadedly connected to a screw 10203, and the inner wall of the fixing frame 10202 is rotatably connected to the surface of the screw 10203; the bottom of the fixing frame 10202 is fixedly connected to a first motor 10201, and the output end of the first motor 10201 is fixedly connected to the bottom of the screw 10203 via a coupling; When the waste gas reacts with the solution, deposited objects will be generated. In order to prevent the deposited objects from blocking the liquid inlet, the first motor 10201 is started to make the screw 10203 rotate forward, and the limit of the sliding rod 10204 is used to make the screw 10203 drive the filter plate 10206 to rise horizontally, and the objects deposited on the filter plate 10206 rise, thereby preventing the deposited objects from blocking the liquid inlet. The rise of the filter plate 10206 can also push the lifting tube 10114 and the connecting rod 10115 to rise, so that the lifting tube 10114 drives the second scraper 10116 and the second L-shaped frame 10117 to rise. By limiting the block 10121 and the key slot 10118, the second scraper 10116 and the second L-shaped frame 10117 can rise, so that the second L-shaped frame 10117 can process the first scraper 10113 to prevent sediment from adhering to the surface of the first scraper 10113, and the first L-shaped frame 10112 can process the second scraper 10116 to prevent sediment from adhering to the surface of the second scraper 10116, thereby extending the service life of the first scraper 10113 and the second scraper 10116, reducing the replacement frequency of the first scraper 10113 and the second scraper 10116, and improving the exhaust gas treatment efficiency.

[0025] The top of the sealing plate 10102 is fixedly connected to the second motor 10101, and the output end of the second motor 10101 is fixedly connected to the top of the first rotating rod 10109 via a coupling.

[0026] In this scheme, when a VOCs washing system is working, the pickling tank 1, the alkali washing tank and the water washing tank respectively perform pickling treatment, alkali washing treatment and water washing treatment on the VOCs gas. The pickling tank 1, the alkali washing tank and the water washing tank are all provided with an automatic liquid replenishment and discharge system, which includes a liquid level gauge, a liquid inlet electric valve and a liquid discharge electric valve. When the liquid level gauge detects that the liquid level in the pickling tank 1, the alkali washing tank and the water washing tank is too low, the liquid inlet electric valve is opened to replenish the liquid in the pickling tank 1, the alkali washing tank and the water washing tank. After reaching a predetermined height, the liquid inlet electric valve is closed. When the liquid level gauge detects that the liquid level in the pickling tank 1, the alkali washing tank and the water washing tank is too high, the liquid discharge electric valve discharges the liquid in the pickling tank 1, the alkali washing tank and the water washing tank. After reaching a predetermined height, the liquid discharge electric valve is closed; The waste gas is discharged into the tank body 10103 through the intake valve by an external air pump, and the gas fully reacts with the solution in the tank body 10103. By starting the second motor 10101, the second motor 10101 rotates forward, causing the first rotating rod 10109 to rotate forward, driving the driving gear 10107 and the limiting circular plate 10106 to rotate forward. Since the outer gear ring 10104 and the limiting ring 10105 are in a fixed state, the driven gear 10108 performs planetary motion along the gap formed by the limiting circular plate 10106 and the limiting ring 10105, so that the first scraper 10113 and the second scraper 10116 fully mix the liquid and the gas. During the process, since the driven gear 10108 performs planetary motion along the gap formed by the limiting circular plate 10106 and the limiting ring 10105, the outer fixing tube 10120, the connecting tube 10110, the connecting rod 10115 and the lifting tube 10114 are in a transverse fixed state through the limiting of the slider 10121 and the keyway 10118, the connecting rod 10115 and the lifting tube 10114 cannot rotate and cannot fall off the connecting tube 10110, so that the first scraper 10113 and the second scraper 10116 can process the inner wall of the tank body 10103, so that the first scraper 10113 and the second scraper 10116 can lift the inner wall of the tank body 10103. The solution attached to the wall is scraped off to reduce the loss of solution, thereby reducing the treatment cost of waste gas. When the waste gas reacts with the solution, deposited objects will be generated. In order to prevent the deposited objects from blocking the liquid inlet, the first motor 10201 is started to make the screw 10203 rotate forward, and the screw 10203 drives the filter plate 10206 to rise horizontally through the limit of the sliding rod 10204, so that the objects deposited on the filter plate 10206 rise, thereby preventing the deposited objects from blocking the liquid inlet. The rise of the filter plate 10206 can also push the lifting tube 10114 and the connecting rod 10115 to rise, so that the lifting tube 10114 drives the second scraper 10116 and the first The second L-shaped frame 10117 rises, and due to the limitation of the slider 10121 and the key slot 10118, the second scraper 10116 and the second L-shaped frame 10117 can rise, so that the second L-shaped frame 10117 processes the first scraper 10113 to prevent sediment from adhering to the surface of the first scraper 10113, and the first L-shaped frame 10112 processes the second scraper 10116 to prevent sediment from adhering to the surface of the second scraper 10116, thereby extending the service life of the first scraper 10113 and the second scraper 10116, reducing the replacement frequency of the first scraper 10113 and the second scraper 10116, and improving the exhaust gas treatment efficiency.

[0027] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A VOCs washing system, characterized in that: It comprises a pickling tank (1), the output end of the pickling tank (1) is connected to an alkali washing tank, the output end of the alkali washing tank is connected to a water washing tank, the inner walls of the pickling tank (1), the alkali washing tank and the water washing tank are all fixedly mounted with liquid level gauges, the liquid inlets of the pickling tank (1), the alkali washing tank and the water washing tank are all fixedly mounted with liquid inlet electric valves, and the liquid outlets of the pickling tank (1), the alkali washing tank and the water washing tank are all fixedly mounted with liquid discharge electric valves; The pickling tank (1) comprises a pickling component (101), and the pickling component (101) is used to process VOCs gas; An anti-deposition component (102), wherein the bottom of the pickling component (101) is provided with an anti-deposition component (102), and the anti-deposition component (102) is used to prevent the deposition of products; A support frame (103), wherein the bottom of the pickling component (101) is fixedly mounted with the support frame (103), and the support frame (103) is used to support the pickling component (101).

2. A VOCs scrubbing system according to claim 1, characterized in that: The pickling component (101) comprises a tank body (10103), the bottom of the tank body (10103) is fixedly connected to the top of the support frame (103), the top of the tank body (10103) is fixedly connected to a limit ring (10105), the top of the limit ring (10105) is fixedly connected to an outer toothed ring (10104), and the top of the outer toothed ring (10104) is fixedly connected to a sealing plate (10102); The anti-deposition component (102) comprises a fixing frame (10202), the bottom of the fixing frame (10202) is fixedly connected to the top of the support frame (103), a second connection hole is penetrated through the bottom of the tank body (10103), a sliding rod (10204) is slidably connected to the hole wall of the second connection hole, and a filter plate (10206) is fixedly connected to the top of the sliding rod (10204).

3. A VOCs scrubbing system according to claim 2, characterized in that: A first connecting hole is formed through the top of the sealing plate (10102), and a first rotating rod (10109) is rotatably connected to the hole wall of the first connecting hole. A driving gear (10107) is fixedly connected to the bottom of the first rotating rod (10109), and a limiting circular plate (10106) is fixedly connected to the bottom of the driving gear (10107). A driven gear (10108) is meshed with the surface of the driving gear (10107), and the surface of the driven gear (10108) is meshed with the teeth of the outer gear ring (10104). A connecting tube (10110) is fixedly connected to the bottom of the driven gear (10108), and the surface of the connecting tube (10110) is in contact with the surface of the outer ring of the limiting circular plate (10106) and the surface of the inner ring of the limiting ring (10105).

4. A VOCs scrubbing system according to claim 3, characterized in that: The number of the driven gears (10108) is two, and the two driven gears (10108) are symmetrically distributed on the left and right. The bottom of the driven gear (10108) is slidably connected to the surface of the limiting circular plate (10106) and the top of the limiting ring (10105).

5. A VOCs scrubbing system according to claim 2, characterized in that: The surface of the outer ring of the filter plate (10206) is slidably connected to the inner wall of the tank body (10103), the bottom of the sliding rod (10204) is fixedly connected to a support plate (10205), the inner wall of the support plate (10205) is threadedly connected to a screw rod (10203), and the inner wall of the fixing frame (10202) is rotatably connected to the surface of the screw rod (10203).

6. A VOCs scrubbing system according to claim 5, characterized in that: The bottom of the fixed frame (10202) is fixedly connected to a first motor (10201), and the output end of the first motor (10201) is fixedly connected to the bottom of the screw rod (10203) via a coupling.

7. A VOCs scrubbing system according to claim 2, characterized in that: The top of the sealing plate (10102) is fixedly connected to a second motor (10101), and the output end of the second motor (10101) is fixedly connected to the top of the first rotating rod (10109) via a coupling.

8. A VOCs scrubbing system according to claim 3, characterized in that: The surface of the connecting tube (10110) is fixedly sleeved with an external fixing tube (10120); the top fixing sleeve of the surface of the external fixing tube (10120) is provided with a connecting ring (10111); the surface of the connecting ring (10111) is fixedly connected with a first L-shaped frame (10112); the surface of the connecting ring (10111) is fixedly connected with a first scraper (10113); key grooves (10118) are provided on both the left and right sides of the inner wall of the connecting tube (10110); a sealing ring (10119) is fixedly connected to the bottom of the connecting tube (10110); a connecting rod (10115) is slidably connected to the inner wall of the sealing ring (10119); and sliding blocks (10121) are fixedly connected to both the left and right sides of the surface of the connecting rod (10115). ), the surface of the slider (10121) is slidably connected to the groove wall of the key groove (10118), the surface of the connecting rod (10115) is slidably connected to the inner wall of the connecting tube (10110), the bottom fixed sleeve of the surface of the connecting rod (10115) is provided with a lifting tube (10114), the inner wall of the lifting tube (10114) is slidably connected to the outer wall of the outer fixed tube (10120), the outer wall of the lifting tube (10114) is slidably connected to one side of the first scraper (10113), a plurality of water leakage grooves are provided on the surface of the lifting tube (10114), a second L-shaped frame (10117) is fixedly connected to the surface of the lifting tube (10114), and a second scraper (10116) is fixedly connected to the surface of the lifting tube (10114).

9. A VOCs scrubbing system according to claim 8, characterized in that: The surface of the second scraper (10116) is slidably connected to the inner wall of the first L-shaped frame (10112), and the second scraper (10116) and the first L-shaped frame (10112) are located on the same axis. The surface of the first scraper (10113) is slidably connected to the inner wall of the second L-shaped frame (10117), and the first scraper (10113) and the second L-shaped frame (10117) are located on the same axis.

10. A VOCs scrubbing system according to claim 9, characterized in that: The number of the second scrapers (10116) and the first L-shaped frame (10112) is four, and the four second scrapers (10116) and the first L-shaped frame (10112) are distributed in a circular array. The number of the first scrapers (10113) and the second L-shaped frame (10117) is four, and the four first scrapers (10113) and the second L-shaped frame (10117) are distributed in a circular array, and the angle between two adjacent first scrapers (10113) and the first L-shaped frame (10112) is forty-five degrees.

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