A Venturi scrubber

Abstract

The present application relates to the technical field of industrial waste gas treatment devices, and provides a venturi scrubber, which includes a support seat, a treatment pipe and a spray assembly, wherein the treatment pipe is arranged in a vertical direction, the treatment pipe is hollow, and the two ends are respectively an air inlet and an air outlet, and the air inlet is located above the air outlet; the spray assembly is connected to the treatment pipe, and the spray assembly is used to spray the inside of the treatment pipe; the venturi tower body, the venturi tower body is located on one side of the treatment pipe, and the air outlet is connected to the venturi tower body; the venturi tower body is provided with a packing layer, the packing layer is placed on the top of the venturi tower, and is used to remove water from the waste gas after spraying, and the venturi tower body is opened at one end away from the support seat, and an exhaust port is formed. The present application has the effect of reducing the possibility of substances in the waste gas sticking to the packing layer and causing blockage.

Description

Technical Field

[0001] The present application relates to the technical field of industrial waste gas treatment devices, and in particular to a venturi scrubber. Background Art

[0002] With the rapid development of modern industry, the amount of waste gas discharged into the atmosphere is increasing, which has brought about the problem of waste gas pollution. For example, the waste gas from industries such as waterproofing coiled materials, spraying, coking and metal processing contains ethyl acetate, benzene series, HCl, as well as tar, particulate matter and other pollutants. Since the carbon roasting flue gas, waterproofing coiled material flue gas and rubber factory waste gas contain pollutants such as aromatic hydrocarbons, tar, particulate matter, etc., the waste gas has a strong odor. In order to reduce the impact of waste gas on the atmosphere and personnel, it needs to be treated before it can be discharged. There are also more and more existing waste gas treatment products, and their principle is that the waste gas passes through the waste gas treatment device in a single line from bottom to top.

[0003] In the prior art, most of the waste gas treatment devices include a washing tower, a packing layer, an air inlet, an air outlet, a liquid circulation system, etc. Among them, the tower body of the washing tower is a vertical cylindrical container filled with a packing with a large surface area and porosity to increase the gas-liquid contact area.

[0004] The gas enters the bottom of the scrubber through the air inlet, and then diffuses and distributes due to the packing layer in the tower body. In the packing layer, the gas contacts the scrubbing liquid pumped from the upper circulation and undergoes physical or chemical reactions. The scrubbing liquid can be water, solvent or other acid-base solution, depending on the pollutants to be removed. In the process of contact with the gas, the scrubbing liquid plays the role of adsorption, dissolution and neutralization, so that the pollutants in the gas are adsorbed or dissolved by the scrubbing liquid; the scrubbed gas is discharged through the outlet at the top of the scrubber.

[0005] Regarding the above-mentioned related technologies, since the oil stains, particulate matter and dust contained in the exhaust gas have a certain viscosity, they are easy to adhere to the packing layer, which in turn causes the packing to be blocked in the washing tower, affecting the exhaust gas treatment effect, and therefore need to be improved. Summary of the invention

[0006] In order to reduce the possibility of substances in the exhaust gas sticking to the packing layer and causing blockage, the present application provides a Venturi scrubber.

[0007] The venturi scrubber provided in this application adopts the following technical solution:

[0008] A venturi scrubber, comprising:

[0009] A support base, the support base serving as a support carrier;

[0010] A treatment tube and a spray assembly, wherein the treatment tube is arranged in a vertical direction, the treatment tube is hollow, and has an air inlet and an air outlet at both ends, respectively, and the air inlet is located above the air outlet; the spray assembly is arranged on the support seat and connected to the treatment tube, and the spray assembly is used to spray the inside of the treatment tube;

[0011] A venturi tower body, wherein the venturi tower body is arranged on the support seat and is located on one side of the treatment tube, and the air outlet is connected to the venturi tower body; a packing layer is provided on the venturi tower body, and the packing layer is placed on the top of the venturi tower and is used to remove water from the waste gas after spraying. The venturi tower body is opened at one end away from the support seat and is formed with an exhaust port.

[0012] By adopting the above technical solution, industrial waste gas enters the treatment pipe from the air inlet from top to bottom, and the spray assembly sprays the waste gas entering the treatment pipe. Dust and other particulate matter in the waste gas are first removed by the spray liquid through adsorption, dissolution and other effects during the contact with the spray liquid, thereby reducing the contact between these sticky substances and the packing layer, and reducing the possibility of substances in the waste gas sticking to the packing layer and causing blockage. The waste gas that has been sprayed enters the Venturi tower body from the outlet and is transported from bottom to top. At this time, the packing layer further adsorbs the waste gas to remove the moisture in the waste gas, and finally the waste gas is discharged from the exhaust port into the atmosphere.

[0013] Preferably, the spray assembly includes a water pipe, a driving motor and a Venturi spray pipe; a circulating water tank is provided on the support seat, the water pipe is connected to the circulating water tank, the driving motor is provided on the support seat and is used to pump water in the circulating water tank into the water pipe; one end of the Venturi spray pipe is connected to the water pipe, and the other end is located in the treatment pipe; a spiral nozzle is provided on the Venturi spray pipe, and the spiral nozzle is located inside the treatment pipe.

[0014] By adopting the above technical solution, the driving motor pumps the water in the circulating water tank into the water pipe. The water is transported along the water pipe to the Venturi spray pipe and sprayed out from the spiral nozzle in a mist form, thereby increasing the degree of contact between the liquid and the exhaust gas, so as to better remove the viscous substances in the exhaust gas.

[0015] Preferably, a plurality of the Venturi spray pipes are provided, each of the Venturi spray pipes is arranged in parallel and connected to the water pipe, and each of the Venturi spray pipes is distributed at intervals along the height direction of the treatment pipe.

[0016] By adopting the above technical solution, each venturi spray pipe sprays the exhaust gas together, and the exhaust gas can be continuously absorbed by the spray liquid during the circulation in the venturi spray pipe, thereby improving the treatment effect of pollutants in the exhaust gas.

[0017] Preferably, a regulating valve is provided on the Venturi spray pipe, and the regulating valve is used to adjust the flow rate of the Venturi spray pipe.

[0018] By adopting the above technical solution, the staff can adjust the flow of the Venturi spray pipe by controlling the regulating valve to control the volume of the spray liquid entering the treatment pipe, thereby reducing the waste of spray liquid while achieving sufficient reaction between the spray liquid and the exhaust gas.

[0019] Preferably, the circulating water tank includes a main water tank and a secondary water tank, the main water tank is connected to the Venturi tower body, the secondary water tank is connected to the main water tank, a filter is provided between the secondary water tank and the main water tank, and the water pipe is connected to the secondary water tank.

[0020] By adopting the above technical solution, the liquid in the main water tank can flow into the secondary water tank after being filtered by the filter, thereby improving the cleanliness of the liquid in the secondary water tank. The liquid in the secondary water tank is then transported to the water pipe by the driving motor.

[0021] Preferably, the processing tube is connected to the Venturi tower body via an arc-shaped transition tube, and a pull-out plate is provided through the arc-shaped transition tube, and the pull-out plate is used to adjust the flow of the arc-shaped transition tube.

[0022] By adopting the above technical solution, the arc-shaped transition pipe connects the treatment pipe and the Venturi tower body together, and the waste gas and spray liquid treated by spraying can be smoothly transitioned into the Venturi tower body through the arc-shaped transition pipe.

[0023] Preferably, a guide tube is provided inside the Venturi tower body, the guide tube is located at the pipe mouth of the arc-shaped transition pipe, the guide tube is in a frustum shape, and the cross-section is circular, and the cross-sectional area of ​​the guide tube gradually increases from top to bottom.

[0024] By adopting the above technical solution, the gas after spraying treatment impacts the guide tube, and the guide tube can make the gas adhere to the inner wall of the Venturi tower body in a spiral upward shape, thereby slowing down the flow rate of the exhaust gas, increasing the time of the exhaust gas in the Venturi tower, and improving the adequacy of the exhaust gas treatment.

[0025] Preferably, there is also a reflux assembly at the bottom of the Venturi tower body, and the reflux assembly is used to reflux the spray liquid in the treatment pipe. The reflux assembly includes a receiving bucket and a paint residue discharge pipe. The receiving bucket is located below the pipe mouth of the arc-shaped transition pipe. One end of the paint residue discharge pipe is connected to the receiving bucket, and the other end is located in the main water tank.

[0026] By adopting the above technical solution, the spray liquid sprayed from the Venturi spray pipe flows from the arc-shaped transition pipe to the inside of the Venturi tower body, and the waste liquid flows to the receiving bucket, and finally flows from the paint residue discharge pipe to the main water tank. The liquid in the main water tank flows to the secondary water tank after being filtered by the filter screen, thereby realizing the reuse of the spray liquid. Among them, the filter screen can filter out the filter residue to improve the clarity of the spray liquid flowing into the Venturi spray pipe.

[0027] Preferably, the processing tube and the venturi tower body are both made of anti-corrosion materials, and the inner walls of the processing tube and the venturi tower body are coated with an epoxy resin layer.

[0028] By adopting the above technical solution, since the exhaust gas also contains some acidic and alkaline substances, which are corrosive to a certain extent, they are easy to corrode the treatment pipe and the main body of the venturi tower. The epoxy resin layer has good corrosion resistance, which can increase the corrosion resistance of the treatment pipe and the main body of the venturi tower to extend the service life of the two.

[0029] Preferably, the cross section of the Venturi tower body is rectangular, and an adsorption layer is further provided in the Venturi tower body, and the adsorption layer is used to filter the waste gas after washing; the adsorption layer comprises a first support plate, an adsorbent and a second support plate, the first support plate is located above the second support plate, the first support plate and the second support plate are parallel to each other, and both surfaces are provided with air holes for the waste gas to pass through, and the adsorbent is provided between the first support plate and the second support plate; a feed port and a discharge port are respectively provided on the Venturi tower body, and the feed port and the discharge port are respectively located at two ends of the first support plate; a lifting plate is slidably connected to the feed port, and the lifting plate moves along the height direction of the Venturi tower body;

[0030] The Venturi tower body is also provided with a loading assembly and a lowering assembly, wherein the loading assembly is close to the feeding port and the lowering assembly is close to the discharging port;

[0031] The feeding assembly comprises a feeding tube, a push plate and a driving member, the feeding tube is arranged obliquely upward and forms an obtuse angle with the first supporting plate, the feeding tube is communicated with the feeding port, and a clearance hole for the adsorbent to enter is opened on the tube wall of the feeding tube; the push plate is movably arranged in the feeding tube, and the driving member is connected to the push plate and is used to control the movement of the push plate;

[0032] The material discharge assembly includes a material discharge pipe, which is also arranged to be inclined upward and forms an obtuse angle with the first support plate. The material discharge pipe is connected to the discharge port, and a material discharge port is provided on the material discharge pipe, and the material discharge port is located above the first support plate.

[0033] By adopting the above technical solution, the exhaust gas may still contain some harmful gases after being processed by the treatment pipe and the main body of the Venturi tower. By adding an adsorption layer, the exhaust gas passes through the pores of the second support plate from bottom to top in the main body of the Venturi tower and contacts the adsorbent. The adsorbent can further adsorb and remove the harmful gases (such as sulfur dioxide, chlorine and ammonia, etc.) remaining in the exhaust gas, further reducing the impact on the atmospheric environment.

[0034] Among them, most of the adsorbents are in solid form, and their performance will gradually decline during the long-term adsorption process. At this time, the adsorbent needs to be replaced to ensure the adsorption effect of the adsorbent. When the adsorbent needs to be replaced, the staff first puts new adsorbent into the clearance hole so that the adsorbent is located in the feeding tube between the push plate and the lifting plate; after the placement is completed, the lifting plate is controlled to move vertically to open the feed port; then the driving member is used to control the push plate to move linearly, and the push plate pushes the adsorbent into the Venturi tower body and finally locates between the first support plate and the second support plate to achieve the replacement of the adsorbent.

[0035] During the pushing process, the old adsorbent is squeezed into the discharge pipe under pressure. Since the discharge pipe is tilted upward, the adsorbent in the discharge pipe will not fall out directly, but will gradually raise its position. When the adsorbent in the discharge pipe is flush with the location of the discharge port, the adsorbent falls from the discharge port under its own gravity.

[0036] In summary, the present application includes at least one of the following beneficial technical effects:

[0037] (1) By setting up a treatment pipe and a spray assembly, industrial waste gas enters the treatment pipe from the air inlet from top to bottom, and the spray assembly sprays the waste gas entering the treatment pipe. Dust and other particulate matter in the waste gas is first removed by the spray liquid through adsorption, dissolution and other effects during the contact process with the spray liquid, thereby reducing the contact between these sticky substances and the packing layer, and reducing the possibility of substances in the waste gas sticking to the packing layer and causing blockage.

[0038] (2) By setting up a reflux component, the reflux component can reuse the spray liquid and reduce industrial processing costs.

[0039] (3) By providing an epoxy resin layer, the epoxy resin layer can increase the corrosion resistance of the processing tube and the venturi tower body to extend the service life of the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the structure of a venturi scrubber in one embodiment of the present application;

[0041] Figure 2 is a schematic diagram of the structure of a processing tube and a spray assembly in one embodiment of the present application;

[0042] Figure 3 It is a partial structural schematic diagram of a venturi scrubber in one embodiment of the present application;

[0043] Figure 4 Schematic cross-sectional view of a venturi scrubber AA in one embodiment of the present application;

[0044] Figure 5 This is a schematic diagram of the structure of a support base in one embodiment of the present application;

[0045] Figure 6 is a schematic structural diagram of a Venturi tower body in another embodiment of the present application;

[0046] Figure 7 It is a cross-sectional schematic diagram of a venturi tower body BB in another embodiment of the present application.

[0047] Figure numerals: 1, support base; 2, treatment pipe; 3, spray assembly; 31, water pipe; 32, drive motor; 33, Venturi spray pipe; 4, Venturi tower body; 5, air inlet; 6, circulating water tank; 61, main water tank; 62, secondary water tank; 7, spiral nozzle; 8, regulating valve; 9, arc transition pipe; 10, exhaust port; 11, guide tube; 12, reflux assembly; 121, receiving bucket; 122, paint residue discharge pipe ; 13. Adsorption layer; 131. First support plate; 132. Adsorption material; 133. Second support plate; 14. Air hole; 15. Feed port; 16. Discharge port; 17. Lifting plate; 18. Loading assembly; 181. Loading pipe; 182. Push plate; 183. Driving member; 19. Unloading assembly; 191. Unloading pipe; 192. Unloading pipe; 20. Unloading port; 21. Pull-out plate; 22. Filter; 23. Make way hole. DETAILED DESCRIPTION

[0048] The technical solution of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The present application can be embodied in many different forms and is not limited to the embodiments described here.

[0049] In the description of the present application, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in any one or more embodiments or examples in a suitable manner.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0051] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection; it can also be a detachable connection; or integrated; it can also be a mechanical connection. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0052] Some embodiments of the present application are described in detail below in conjunction with the accompanying drawings. In the absence of conflict, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples shown in the present application.

[0053] The present application embodiment discloses a venturi scrubber. Figure 1 The venturi scrubber includes a support base 1, a treatment pipe 2, a spray assembly 3 and a venturi tower body 4. The support base 1 is fixedly mounted on the ground as a support carrier; the treatment pipe 2 is fixedly mounted on the support base 1 and arranged in a vertical direction. The treatment pipe 2 is a round tube and is hollow. The two ends of the treatment pipe 2 are respectively an air inlet 5 and an air outlet. The air inlet 5 is located above the air outlet, and the industrial waste gas enters the treatment pipe 2 from the air inlet 5. The spray assembly 3 is mounted on the support base 1 and connected to the treatment pipe 2. The spray assembly 3 is used to spray the inside of the treatment pipe 2.

[0054] Reference Figure 2The spray assembly 3 includes a water pipe 31, a driving motor 32 and a venturi spray pipe 33. A circulating water tank 6 is installed on the support base 1. The circulating water tank 6 contains liquid for spraying. The water pipe 31 is connected to the circulating water tank 6. The driving motor 32 is fixed on the support base 1 and is used to pump the liquid in the circulating water tank 6 into the water pipe 31. The water pipe 31 is vertically arranged, and the venturi spray pipe 33 is horizontally arranged, and one end is connected to the water pipe 31, and the other end extends into the treatment pipe 2. The venturi spray pipe 33 is connected to a spiral nozzle 7, and the spiral nozzle 7 is located inside the treatment pipe 2. The venturi spray pipe 33 is also installed with a regulating valve 8, which is used to adjust the flow of the venturi spray pipe 33. The staff can control the volume of the spray liquid entering the treatment pipe 2 by controlling the regulating valve 8, so as to reduce the waste of the spray liquid and improve the production efficiency under the premise of sufficient reaction of the spray liquid with the exhaust gas.

[0055] Industrial waste gas enters the treatment pipe 2 from the air inlet 5 from top to bottom, and the driving motor 32 pumps the liquid in the circulating water tank 6 into the water pipe 31. The liquid is transported along the water pipe 31 to the Venturi spray pipe 33 and sprayed out from the spiral nozzle 7 in a mist form, thereby increasing the degree of contact between the liquid and the waste gas. The dust and other particulate matter in the waste gas are first removed by the spray liquid through adsorption, dissolution and other effects during the contact with the spray liquid, thereby reducing the contact between these sticky substances and the packing layer, thereby reducing the possibility of substances in the waste gas sticking to the packing layer and causing blockage.

[0056] Among them, there are several venturi spray pipes 33; as shown in the figure, there are three venturi spray pipes 33 in this embodiment, each venturi spray pipe 33 is arranged in parallel and connected to the water pipe 31, and the three venturi spray pipes 33 are spaced apart along the height direction of the treatment pipe 2. Each venturi spray pipe 33 sprays the exhaust gas together, and the exhaust gas can be continuously absorbed by the spray liquid during the flow in the venturi spray pipe 33, thereby improving the treatment effect of pollutants in the exhaust gas.

[0057] Reference Figure 3 and Figure 4 The venturi tower body 4 is located at one side of the processing tube 2 and is also installed on the support base 1. The gas outlet of the processing tube 2 is connected to the venturi tower body 4. Specifically, the venturi tower body 4 and the processing tube 2 are connected through an arc-shaped transition tube 9. A pull-out plate 21 is slidably connected to the arc-shaped transition tube 9. The pull-out plate 21 is arranged along the cross-sectional direction of the arc-shaped transition tube 9 and is used to block the tube mouth of the arc-shaped transition tube 9, thereby adjusting the gas flow through the arc-shaped transition tube 9.

[0058] A packing layer is installed inside the venturi tower body 4, which is located at the upper end of the gas outlet and is used to adsorb the waste gas after spraying. The venturi tower body 4 is opened at one end away from the support seat 1, and is formed with an exhaust port 10, which is used to discharge the treated waste gas. The waste gas treated by spraying enters the venturi tower body 4 from the gas outlet and is transported from bottom to top. At this time, the packing layer further adsorbs the waste gas, thereby removing the moisture in the waste gas. After a certain period of time, the waste gas is discharged from the exhaust port 10 into the atmosphere.

[0059] The treatment tube 2 and the venturi tower body 4 are both made of anti-corrosion materials; at the same time, the inner walls of the treatment tube 2 and the venturi tower body 4 are coated with an epoxy resin layer. Since the exhaust gas also contains some acidic and alkaline substances, these substances have certain corrosiveness and are easy to corrode the treatment tube 2 and the venturi tower body 4. The epoxy resin layer has good corrosion resistance, which can increase the corrosion resistance of the treatment tube 2 and the venturi tower body 4 to extend the service life of the two.

[0060] In addition, a guide tube 11 is fixedly installed inside the venturi tower body 4, and the guide tube 11 is located at the pipe mouth of the arc-shaped transition pipe 9; the guide tube 11 is in the shape of a cone, and the cross section is circular, and the cross-sectional area of ​​the guide tube 11 gradually increases from top to bottom. The gas after spraying impacts the guide tube 11, and the guide tube 11 can make the gas stick to the inner wall of the venturi tower body 4 in a spiral upward shape, thereby slowing down the flow rate of the exhaust gas, increasing the time of the exhaust gas in the venturi tower, and improving the adequacy of the exhaust gas treatment.

[0061] According to some embodiments of the present application, optionally, please refer to Figure 4 and Figure 5 Specifically, the circulating water tank 6 includes a main water tank 61 and a secondary water tank 62. The main water tank 61 is connected to the venturi tower body 4, the secondary water tank 62 is connected to the main water tank 61, and the lower end of the water pipe 31 is connected to the secondary water tank 62. A filter screen 22 is installed between the secondary water tank 62 and the main water tank 61, and the filter screen 22 is used to intercept solid impurities in the main water tank 61.

[0062] There is also a reflux component 12 at the bottom of the Venturi tower body 4, which is used to reflux the spray liquid in the treatment pipe 2. The reflux component 12 includes a receiving bucket 121 and a paint residue discharge pipe 122. The receiving bucket 121 is located below the pipe mouth of the arc-shaped transition pipe 9. One end of the paint residue discharge pipe 122 is connected to the receiving bucket 121, and the other end is located in the main water tank 61.

[0063] The spray liquid sprayed from the Venturi spray pipe 33 flows from the arc-shaped transition pipe 9 to the inside of the Venturi tower body 4, and the waste liquid flows to the receiving bucket 121, and finally flows to the main water tank 61 from the paint residue discharge pipe 122. The liquid in the main water tank 61 flows into the secondary water tank 62 after being filtered by the filter screen 22, so as to realize the reuse of the spray liquid. The interception effect of the filter screen 22 can filter out the filter residue, improve the cleanliness of the liquid flowing into the secondary water tank 62, and then the liquid in the secondary water tank 62 is transported to the water delivery pipe 31 by the driving motor 32.

[0064] Based on the above embodiments, Figure 6 and Figure 7 As shown, the cross section of the Venturi tower body 4 of the embodiment of the present application is rectangular. An adsorption layer 13 is also installed in the Venturi tower body 4, and the adsorption layer 13 is used to filter the exhaust gas after washing; the adsorption layer 13 includes a first support plate 131, an adsorbent 132 and a second support plate 133, the first support plate 131 is located directly above the second support plate 133, and there is a gap between the first support plate 131 and the second support plate 133. The first support plate 131 and the second support plate 133 are parallel to each other, and both of them have air holes 14 on their surfaces for the exhaust gas to pass through. The adsorbent 132 is in the form of solid particles and is placed between the first support plate 131 and the second support plate 133.

[0065] After the waste gas is processed by the treatment pipe 2 and the venturi tower body 4, it may still contain some harmful gases. By adding the adsorption layer 13, the waste gas passes through the pores 14 of the second support plate 133 from bottom to top in the venturi tower body 4 and contacts the adsorbent 132. The adsorbent 132 can further adsorb and remove the harmful gases (such as sulfur dioxide, chlorine and ammonia, etc.) remaining in the waste gas, further reducing the impact on the atmospheric environment.

[0066] The venturi tower body 4 is provided with a feed port 15 and a discharge port 16, which are respectively located at the two ends of the first support plate 131. The venturi tower body 4 is slidably connected with a lifting plate 17, which is located at the position of the feed port 15 and is used to cover the feed port 15. The lifting plate 17 moves up and down along the height direction of the venturi tower body 4.

[0067] In addition, a loading assembly 18 and a lowering assembly 19 are respectively installed on the venturi tower body 4. The loading assembly 18 is located on the side where the feed port 15 is located, and the lowering assembly 19 is located on the side where the discharge port 16 is located. Specifically, the loading assembly 18 includes a loading pipe 181, a push plate 182 and a driving member 183. The loading pipe 181 is arranged to be inclined upward and form an obtuse angle with the first support plate 131. One end of the loading pipe 181 is connected to the feed port 15. A clearance hole 23 for the adsorbent 132 to enter is opened on the wall of the loading pipe 181. The push plate 182 is movably installed in the loading pipe 181. The push plate 182 is arranged in the vertical direction and is used to push the adsorbent 132. The driving member 183 is installed in the loading pipe 181 and connected to the push plate 182. The driving member 183 is used to control the movement of the push plate 182. In this embodiment, the driving member 183 is a linear cylinder, the piston rod of the linear cylinder is fixedly connected to the side of the push plate 182 away from the lifting plate 17, and the piston rod of the linear cylinder is extended and retracted along the length direction of the feeding tube 181; when the piston rod of the linear cylinder is extended and retracted, the reciprocating movement of the push plate 182 is controlled.

[0068] The material discharge assembly 19 includes a material discharge pipe 191 and a material discharge pipe 192. The material discharge pipe 191 is also tilted upward and the angle formed with the first support plate 131 is also an obtuse angle. One end of the material discharge pipe 191 is connected to the discharge port 16. A material discharge port 20 is also provided on the wall of the material discharge pipe 191. The material discharge port 20 is located above the first support plate 131. One end of the material discharge pipe 192 is connected to the material discharge port 20, and the other end extends in a direction close to the support seat 1.

[0069] Since the performance of the adsorbent 132 will gradually decline during the long-term adsorption process, it is necessary to replace the adsorbent 132 to ensure the adsorption effect of the adsorbent 132. When the adsorbent 132 needs to be replaced, the staff first puts new adsorbent 132 into the clearance hole 23, so that the adsorbent 132 is located in the feeding tube 181 between the push plate 182 and the lifting plate 17; after the placement is completed, the lifting plate 17 is controlled to move vertically to open the feed port 15; then the driving cylinder is used to control the push plate 182 to move linearly, and the push plate 182 pushes the adsorbent 132 into the Venturi tower body 4 and finally locates between the first support plate 131 and the second support plate 133, so as to replace the adsorbent 132, and then the lifting plate 17 is re-covered at the feed port 15.

[0070] During the pushing process, the old adsorbent 132 is squeezed into the feeding tube 191 under pressure. Since the feeding tube 191 is tilted upward, the adsorbent 132 in the feeding tube 191 will not fall out directly, but will gradually raise its position. When the adsorbent 132 in the feeding tube 191 is flush with the location of the feeding port 20, the adsorbent 132 falls from the feeding port 20 into the feeding tube 192 under its own gravity, and moves along the feeding tube 192 close to the ground, which is convenient for the staff to collect and handle.

[0071] The implementation principle of a venturi scrubber in the embodiment of the present application is as follows: industrial waste gas enters the treatment tube 2 from the air inlet 5 from top to bottom, the spray assembly 3 sprays the waste gas entering the treatment tube 2, and then the waste gas enters the venturi tower body 4 through the arc transition pipe 9. The viscous substances in the waste gas will be removed by the spray liquid first, reducing the contact between these viscous substances and the packing layer, thereby reducing the possibility of substances in the waste gas sticking to the packing layer and causing blockage. The waste gas in the venturi tower body 4 spirals up from bottom to top, and is finally discharged into the atmosphere after being dehydrated by the packing layer and adsorbed by the adsorbent 132.

[0072] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A Venturi scrubber, characterized in that: include: A support base (1), the support base (1) serving as a support carrier; A treatment tube (2) and a spray assembly (3), wherein the treatment tube (2) is arranged in a vertical direction, the treatment tube (2) is hollow, and has an air inlet (5) and an air outlet at both ends, respectively, and the air inlet (5) is located above the air outlet; the spray assembly (3) is arranged on the support seat (1) and connected to the treatment tube (2), and the spray assembly (3) is used to spray the inside of the treatment tube (2); A venturi tower body (4), the venturi tower body (4) being arranged on the support seat (1) and located on one side of the processing tube (2), the gas outlet being arranged in communication with the venturi tower body (4); a packing layer being arranged on the venturi tower body (4), the packing layer being arranged on the top of the venturi tower and being used for removing water from the waste gas after spraying, the venturi tower body (4) being arranged with an opening at one end away from the support seat (1) and being formed with an exhaust port (10); The spray assembly (3) comprises a water delivery pipe (31), a drive motor (32) and a Venturi spray pipe (33); a circulating water tank (6) is provided on the support seat (1); the water delivery pipe (31) is connected to the circulating water tank (6); the drive motor (32) is arranged on the support seat (1) and is used to pump water in the circulating water tank (6) into the water delivery pipe (31); one end of the Venturi spray pipe (33) is connected to the water delivery pipe (31), and the other end is located in the treatment pipe (2); a spiral spray head (7) is provided on the Venturi spray pipe (33), and the spiral spray head (7) is located inside the treatment pipe (2); A plurality of the Venturi spray pipes (33) are provided, each of the Venturi spray pipes (33) is arranged in parallel and is connected to the water delivery pipe (31), and each of the Venturi spray pipes (33) is distributed at intervals along the height direction of the treatment pipe (2); The venturi spray pipe (33) is provided with a regulating valve (8), and the regulating valve (8) is used to adjust the flow rate of the venturi spray pipe (33); The circulating water tank (6) comprises a main water tank (61) and a secondary water tank (62); the main water tank (61) is connected to the Venturi tower body (4); the secondary water tank (62) is connected to the main water tank (61); a filter screen (22) is provided between the secondary water tank (62) and the main water tank (61); and the water delivery pipe (31) is connected to the secondary water tank (62); The processing pipe (2) is connected to the Venturi tower body (4) via an arc-shaped transition pipe (9), and a pull-out plate (21) is provided through the arc-shaped transition pipe (9), and the pull-out plate (21) is used to adjust the flow of the arc-shaped transition pipe (9); A guide tube (11) is provided inside the Venturi tower body (4), the guide tube (11) being located at the pipe mouth of the arc-shaped transition pipe (9), the guide tube (11) being in the shape of a truncated cone and having a circular cross section, and the cross-sectional area of ​​the guide tube (11) gradually increases from top to bottom; The bottom of the Venturi tower body (4) also has a reflux assembly (12), the reflux assembly (12) being used to reflux the spray liquid in the treatment pipe (2), the reflux assembly (12) comprising a receiving bucket (121) and a paint residue discharge pipe (122), the receiving bucket (121) being located below the pipe opening of the arc-shaped transition pipe (9), one end of the paint residue discharge pipe (122) being connected to the receiving bucket (121), and the other end being located in the main water tank (61); The cross section of the Venturi tower body (4) is rectangular. An adsorption layer (13) is further provided in the Venturi tower body (4). The adsorption layer (13) is used to filter the waste gas after washing. The adsorption layer (13) comprises a first support plate (131), an adsorbent (132) and a second support plate (133). The first support plate (131) is located above the second support plate (133). The first support plate (131) and the second support plate (133) are parallel to each other and both have openings on their surfaces. An air hole (14) is provided for exhaust gas to pass through, and the adsorbent (132) is provided between the first support plate (131) and the second support plate (133); a feed port (15) and a discharge port (16) are respectively provided on the Venturi tower body (4), and the feed port (15) and the discharge port (16) are respectively located at two ends of the first support plate (131); a lifting plate (17) is slidably connected to the feed port (15), and the lifting plate (17) moves along the height direction of the Venturi tower body (4); The Venturi tower body (4) is also provided with a loading assembly (18) and a unloading assembly (19), wherein the loading assembly (18) is close to the feeding port (15), and the unloading assembly (19) is close to the discharging port (16); The feeding assembly (18) comprises a feeding tube (181), a push plate (182) and a driving member (183); the feeding tube (181) is arranged to be inclined upward and to form an obtuse angle with the first support plate (131); the feeding tube (181) is communicated with the feed port (15); a clearance hole (23) for the adsorbent (132) to enter is provided on the tube wall of the feeding tube (181); the push plate (182) is movably arranged in the feeding tube (181); the driving member (183) is connected to the push plate (182) and is used to control the movement of the push plate (182); The material discharge assembly (19) comprises a material discharge pipe (191), the material discharge pipe (191) is also arranged to be inclined upward and to form an obtuse angle with the first support plate (131), the material discharge pipe (191) is connected to the discharge port (16), and a material discharge port (20) is provided on the material discharge pipe (191), and the material discharge port (20) is located above the first support plate (131).

2. A venturi scrubber according to claim 1, characterized in that: The processing tube (2) and the Venturi tower body (4) are both made of anti-corrosion materials, and the inner walls of the processing tube (2) and the Venturi tower body (4) are both coated with an epoxy resin layer.

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