Washing tower

Abstract

The utility model discloses a washing tower which comprises a washing tower body, the top of the washing tower body is open and is coaxially provided with a conical end socket through a lifting lug, waste gas enters the conical end socket through the conical end socket, and an alkali liquor spraying assembly with a double-layer alkali liquor spraying function is arranged at the position, below the conical end socket, of the top of the washing tower body. The washing tower has the beneficial effects that the alkali liquor spraying assembly is arranged at the upper part of the tower body of the washing tower, and the alkali liquor spraying assembly comprises the upper spray gun mounting pipe at the upper layer, the spraying system manifold at the middle layer and the lower spray gun mounting pipe at the lower layer from top to bottom; the spray gun bodies are coaxially mounted on the upper spray gun mounting pipe and the lower spray gun mounting pipe, so that a liquid supply dispersion mode of double-layer spraying of alkali liquor can be realized by virtue of the upper and lower layers of spray gun bodies, and the spraying dispersion effect of the alkali liquor is improved; and therefore, the alkali liquor can flow downwards together with the waste gas more sufficiently to pass through the filler plate body, and the waste gas treatment effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment auxiliary components, in particular to a washing tower. Background Art

[0002] The scrubber is a new type of gas purification equipment. It is improved on the basis of the floating packing layer gas purifier. It is widely used in pre-treatment of industrial waste gas purification, dust removal, etc., and has a good purification effect.

[0003] When designing existing washing towers, when spraying alkali solution to the top of the tower, a spray system with only a single-layer spraying method is usually provided, and the spraying effect is average, resulting in average treatment effect on the exhaust gas. Utility Model Content

[0004] The purpose of the present utility model is to provide a washing tower in order to solve the above-mentioned problems. By coaxially installing the spray gun body on the upper spray gun mounting tube and the lower spray gun mounting tube, a double-layer alkali liquid supply and dispersion method can be realized with the help of the upper and lower layers of the spray gun body, thereby improving the spraying and dispersion effect of the alkali liquid, and then making it easier for the alkali liquid to flow downward through the filler plate body together with the exhaust gas. See the following description for details.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] The utility model provides a washing tower, comprising a washing tower body, the top of the washing tower body is open and a conical head for entering exhaust gas is coaxially installed through a lifting ear, and an alkali liquid spraying component with a double-layer alkali liquid spraying function is installed at a position below the conical head on the top of the washing tower body.

[0007] Preferably, the bottom surface of the washing tower body is a tower base for support, and the outer periphery of the bottom of the washing tower body is fixedly connected to a plurality of tower body reinforcing ribs at a position circumferentially combined with the tower base, and the front position of the bottom of the washing tower body is fixedly connected to a sewage pipe for discharging waste.

[0008] Preferably, a dosing pipe with an inner end extending into the bottom of the washing tower body is installed on one side of the bottom of the washing tower body, and the bottom of the washing tower body is fixedly connected to a drain pipe for draining liquid at a position below the dosing pipe.

[0009] Preferably, the other side of the bottom of the washing tower body is fixedly connected to a pH detection tube, the washing tower body is fixedly connected to an outlet pipe for discharging treated waste gas at a position above the pH detection tube, and a baffle is installed at the inner end of the outlet pipe inside the washing tower body to reduce liquid entrainment in the discharged waste gas.

[0010] Preferably, three inspection holes are provided at the front of the washing tower body, and the three inspection holes are arranged in sequence from top to bottom in the height direction.

[0011] Preferably, the alkali solution spray assembly includes an upper spray gun mounting pipe, a spray system manifold, a lower spray gun mounting pipe and a spray gun body, the upper spray gun mounting pipe, the spray system manifold and the lower spray gun mounting pipe are respectively located at the top of the washing tower body below the conical head, and the upper spray gun mounting pipe is located on the upper layer, the spray system manifold is located in the middle layer, and the lower spray gun mounting pipe is located in the lower layer. The number of the upper spray gun mounting pipe and the lower spray gun mounting pipe are both multiple and are all arranged along the radial direction of the washing tower body and connected to the washing tower body. Fixedly connected, the upper spray gun mounting tube and the lower spray gun mounting tube are coaxially inserted with the spray gun body whose inner end extends into the washing tower body, and the ends of the spray gun bodies extending outside the washing tower body are provided with spray gun connecting pipes, the spray system manifold is an annular tube and is coaxially fixed to the periphery of the washing tower body through a manifold support plate, the periphery of the spray system manifold is fixedly connected with a plurality of radially arranged manifold liquid outlet pipes and manifold liquid inlet pipes, and the spray gun connecting pipes are connected to the manifold liquid outlet pipes at a nearby position through metal hoses.

[0012] Preferably, the number of the upper spray gun mounting tubes and the number of the lower spray gun mounting tubes are between three and six, and the upper and lower upper spray gun mounting tubes and the lower spray gun mounting tubes are staggered in the circumferential direction.

[0013] Preferably, the sprinkler system manifold is an annular tube formed by connecting the pipe flanges at the ends of multiple arc-shaped elbows end to end, and the number of the manifold liquid inlet pipes is three and they are evenly distributed in the circumferential direction.

[0014] Preferably, a filler plate body filled with ceramic filler is coaxially arranged on the inner periphery of the middle position of the washing tower body, a plate support frame is fixedly connected to the inner periphery of the washing tower body below the filler plate body, and the filler plate body is placed on the top of the plate support frame.

[0015] Preferably, the filler plate body is a fiberglass grille made of petals and the ceramic filler filled is a ceramic ball ring, the plate support frame at the bottom of the filler plate body is a steel pipe frame, and the grille petal gap of the filler plate body and the installation direction of the steel pipe frame of the plate support frame are perpendicular to each other.

[0016] The above-mentioned washing tower is used, specifically in the operation and use of the washing tower body, since the alkali liquid spraying assembly is arranged on the upper part of the washing tower body, and the alkali liquid spraying assembly is respectively composed of the upper spray gun mounting pipe, the middle spray system manifold and the lower spray gun mounting pipe from top to bottom, the upper spray gun mounting pipe and the lower spray gun mounting pipe are coaxially mounted on the spray gun body, so that a double-layer alkali liquid spraying liquid supply dispersion method can be realized with the help of the upper and lower layers of the spray gun bodies, thereby improving the spray dispersion effect of the alkali liquid, and then making it easier for the alkali liquid to flow downward through the filler plate body together with the exhaust gas, thereby improving The treatment effect of the exhaust gas is improved. At the same time, since the alkali liquid spraying assembly is provided with the spray system manifold in the form of an annular tube, and the periphery of the spray system manifold is provided with a plurality of the manifold outlet pipes and the manifold inlet pipes, the plurality of manifold outlet pipes are respectively connected to the spray gun connecting pipes close to the spray gun body through the metal hose, so as to realize the stable liquid supply to the upper and lower layers of the spray gun body, ensuring that the double-layer sprayed alkali liquid has good and stable liquid supply conditions. At the same time, since a plurality of the manifold inlet pipes are provided, it is convenient to select the manifold inlet pipe at a suitable position as the inlet according to the actual situation of the on-site pipeline when installing the pipeline on site, thereby improving the The flexibility and applicability of the manifold inlet pipe when arranged on site, specifically in actual liquid supply, the discharge pipe and the manifold inlet pipe serving as the inlet are respectively connected to the liquid suction pipe and liquid supply pipe of the external suction liquid supply pump equipment, so that the alkali liquid at the bottom of the washing tower body is sucked into the spray system manifold through the external liquid supply pump to supply liquid to the multiple spray gun bodies. Since the filler plate body is a glass fiber reinforced plastic grid made of petals, and the plate support frame at the bottom of the filler plate body is a steel pipe frame, the filler plate body can be smoothly installed on site, and with the help of the plate support frame, the filler plate body can also be stably arranged in the washing tower. The tower body further improves the treatment effect of the exhaust gas, and since the washing tower body is provided with three inspection holes and they are arranged in sequence from top to bottom in the height direction, the alkali liquid spraying operation of the alkali liquid spraying assembly can be directly observed through the inspection hole at the upper position, and the operation of the filler plate body can be directly observed through the inspection hole at the middle position, and the on-site installation of the filler plate body is convenient. At the same time, the inspection hole at the lower position can directly observe the liquid level of the alkali liquid, and since the washing tower body is provided with the baffle at the inner end of the outlet pipe position, the liquid entrainment in the exhaust gas can be reduced through the setting of the baffle.

[0017] The beneficial effects are as follows: 1. The utility model is provided with an alkali liquid spraying assembly at the upper part of the washing tower body. At the same time, the alkali liquid spraying assembly comprises, from top to bottom, an upper spray gun mounting pipe on the upper layer, a spray system manifold on the middle layer, and a lower spray gun mounting pipe on the lower layer. In this way, the upper spray gun mounting pipe and the lower spray gun mounting pipe are coaxially mounted on the spray gun body. The double-layer alkali liquid spraying liquid supply dispersion mode can be realized by means of the upper and lower spray gun bodies, thereby improving the spray dispersion effect of the alkali liquid, and then facilitating the alkali liquid to flow downward more fully together with the exhaust gas through the filler plate body, thereby improving the treatment effect of the exhaust gas.

[0018] 2. The alkali liquid spray assembly is provided with a ring-shaped spray system manifold, and a plurality of manifold liquid outlet pipes and manifold liquid inlet pipes are provided on the periphery of the spray system manifold. In this way, the plurality of manifold liquid outlet pipes are connected to the spray gun pipes of the adjacent spray gun bodies through metal hoses to achieve stable liquid supply to the upper and lower layers of the spray gun bodies, ensuring good and stable liquid supply conditions for the double-layer spraying of alkali liquid. At the same time, since multiple manifold liquid inlet pipes are provided, it is convenient to select the manifold liquid inlet pipe at an appropriate position as the inlet according to the actual situation of the on-site pipeline when installing the pipeline on site, thereby improving the flexibility and applicability of the manifold liquid inlet pipe when laying out on site;

[0019] 3. The filler plate body is a glass fiber reinforced plastic grid made of petals. At the same time, the plate support frame at the bottom of the filler plate body is a steel pipe frame. This not only allows the filler plate body to be installed smoothly on site, but also allows the filler plate body to be firmly arranged in the scrubber body with the help of the plate support frame, further improving the treatment effect of the exhaust gas;

[0020] 4. The washing tower body is provided with three inspection holes, which are arranged in sequence from top to bottom in the height direction. The upper inspection hole can directly observe the alkali liquid spraying operation of the alkali liquid spraying assembly. At the same time, the inspection hole in the middle position can directly observe the operation of the filler plate body and facilitate the on-site installation of the filler plate body. At the same time, the inspection hole in the lower position can directly observe the liquid level of the alkali liquid.

[0021] 5. A baffle is installed at the inner end of the exhaust pipe of the washing tower body, so that the liquid entrainment in the exhaust gas can be reduced by setting the baffle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1It is an overall front view schematic diagram of the utility model;

[0024] Figure 2 This utility model Figure 1 AA cross-section diagram;

[0025] Figure 3 This utility model Figure 1 BB cross-section diagram;

[0026] Figure 4 This utility model Figure 1 Axonometric diagram of the sprinkler system manifold;

[0027] Figure 5 This utility model Figure 1 Schematic diagram of the sprinkler system manifold;

[0028] Figure 6 This utility model Figure 1 Schematic diagram of the top view of the sprinkler system manifold;

[0029] Figure 7 This utility model Figure 1 A partial schematic diagram of the position of the filler plate body;

[0030] Figure 8 This utility model Figure 1 A top view of the position of the filler plate body;

[0031] Figure 9 This utility model Figure 1 Schematic bottom view of the position of the filler plate body.

[0032] The following are the descriptions of the reference numerals:

[0033] 1. Conical head; 101. Lifting ear; 2. Alkali solution spray assembly; 201. Upper spray gun mounting pipe; 202. Spray gun body; 203. Spray gun connecting pipe; 204. Metal hose; 205. Spray system manifold; 206. Manifold outlet pipe; 207. Manifold support plate; 208. Manifold inlet pipe; 209. Lower spray gun mounting pipe; 3. Scrubber body; 301. Inspection hole; 302. Dosing pipe; 303. Drain pipe; 304. Tower body reinforcement rib; 305. Tower body base; 306. Baffle; 307. Air outlet pipe; 308. pH detection tube; 309. Drain pipe; 4. Filling plate body; 401. Plate support frame. DETAILED DESCRIPTION

[0034] To make the purpose, technical solution, and advantages of the present invention more clear, the technical solution of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0035] See also Figures 1-9 As shown, the utility model provides a washing tower, including a washing tower body 3, the top of the washing tower body 3 is open and a conical head 1 for entering the exhaust gas is coaxially installed through the lifting ear 101, and an alkali liquid spraying assembly 2 with a double-layer alkali liquid spraying function is installed at the top of the washing tower body 3 below the conical head 1. Specifically, the alkali liquid spraying assembly 2 includes an upper spray gun mounting pipe 201, a spray system manifold 205, a lower spray gun mounting pipe 209 and a spray gun body 202, and the upper spray gun mounting pipe 201, the spray system manifold 205 and the lower spray gun mounting pipe 209 are respectively Located at the top of the washing tower body 3 below the conical head 1, the upper spray gun mounting pipe 201 is located in the upper layer, the spray system manifold 205 is located in the middle layer, and the lower spray gun mounting pipe 209 is located in the lower layer. The number of the upper spray gun mounting pipe 201 and the lower spray gun mounting pipe 209 are both multiple and are arranged along the radial direction of the washing tower body 3 and are fixedly connected to the washing tower body 3. The upper spray gun mounting pipe 201 and the lower spray gun mounting pipe 209 are coaxially interspersed with a spray gun body 202 whose inner end extends into the washing tower body 3, and the end of the spray gun body 202 extending outside the washing tower body 3 is provided with The spray gun pipe 203 and the spray system manifold 205 are annular pipes and are coaxially fixed to the periphery of the washing tower body 3 through the manifold support plate 207. The periphery of the spray system manifold 205 is fixedly connected with a plurality of manifold liquid outlet pipes 206 and manifold liquid inlet pipes 208 arranged radially, and the spray gun pipe 203 is connected to the manifold liquid outlet pipe 206 at a similar position through a metal hose 204. The purpose of this arrangement is to firstly install the spray gun body 202 coaxially with the upper spray gun mounting pipe 201 and the lower spray gun mounting pipe 209 so as to be able to use the upper and lower layers of the spray gun body 20 2 is used to realize the liquid supply dispersion mode of double-layer spraying alkali solution, thereby improving the spraying dispersion effect of the alkali solution. At the same time, since the alkali solution spraying component 2 is provided with a ring-shaped spray system manifold 205, and a plurality of manifold liquid outlet pipes 206 and a manifold liquid inlet pipe 208 are provided on the periphery of the spray system manifold 205, the plurality of manifold liquid outlet pipes 206 are respectively connected to the spray gun connecting pipe 203 of the adjacent spray gun body 202 through the metal hose 204, thereby realizing stable liquid supply to the upper and lower layers of the spray gun body 202, ensuring that the double-layer spraying alkali solution has good and stable liquid supply conditions.

[0036] See also Figures 1-6As shown, the washing tower body 3 and the alkali solution spraying assembly 2 are respectively optimized as follows. Specifically, the bottom surface of the washing tower body 3 is a tower body base 305 for supporting, and the outer periphery of the bottom of the washing tower body 3 is fixedly connected with a plurality of tower body reinforcing ribs 304 at a position circumferentially combined with the tower body base 305. The front position of the bottom of the washing tower body 3 is fixedly connected to a sewage pipe 309 for discharging waste. With this arrangement, it is first convenient to stably support the washing tower body 3 through the tower body base 305 and the tower body reinforcing ribs 304, and at the same time, the setting of the sewage pipe 309 facilitates the subsequent smooth discharge of waste to the outside. At the same time, optionally, a dosing pipe 302 with an inner end extending into the bottom of the washing tower body 3 is installed on one side of the bottom of the washing tower body 3, and the bottom of the washing tower body 3 is fixedly connected to a drain pipe 303 for draining liquid at a position below the dosing pipe 302. Such an arrangement makes it convenient to first replenish the inner bottom of the washing tower body 3 with alkali solution through the dosing pipe 302, and at the same time, to discharge the alkali solution at the bottom of the washing tower body 3 to the spray system manifold 205 through the drain pipe 303 for supplying alkali solution. Further optionally, the other side of the bottom of the washing tower body 3 is fixedly connected to a pH detection tube 308, so that the pH of the internal alkali solution can be detected through the pH detection tube 308, so as to facilitate timely replenishment of the alkali solution. The washing tower body 3 is fixedly connected to an outlet pipe 307 for discharging the treated waste gas at a position above the pH detection tube 308, and a baffle 306 for reducing liquid entrainment in the discharged waste gas is installed at the inner end of the outlet pipe 307 inside the washing tower body 3. With this arrangement, it is convenient to reduce the liquid entrainment in the discharged gas through the arrangement of the baffle 306. Optionally, three inspection holes 301 are provided at the front of the washing tower body 3, and the three inspection holes 301 are arranged in sequence from top to bottom in the height direction. Such an arrangement facilitates direct observation of the alkali liquid spraying operation of the alkali liquid spraying assembly 2 through the inspection hole 301 at the upper position, while directly observing the operation of the filler plate body 4 through the inspection hole 301 at the middle position and facilitating on-site installation of the filler plate body 4. At the same time, the inspection hole 301 at the lower position can directly observe the liquid level of the alkali liquid. Preferably, the hole covers of the inspection holes 301 are made of plexiglass so that the situation inside the washing tower body 3 can be intuitively observed.

[0037] See also Figures 1-9As shown, specifically for the alkali solution spray assembly 2, the number of the upper spray gun mounting tubes 201 and the lower spray gun mounting tubes 209 is between three and six, and the upper and lower spray gun mounting tubes 201 and the lower spray gun mounting tubes 209 are staggered in the circumferential direction. With this arrangement, the upper and lower spray gun bodies 202 can have a better and more stable alkali solution spraying effect after the installation is completed. At the same time, the spray system manifold 205 can be optionally an annular tube formed by connecting the flanges at the ends of multiple arc-shaped elbows end to end. The number of manifold liquid inlet pipes 208 is three and they are evenly distributed in the circumferential direction. With this arrangement, when installing the pipeline on site, the manifold liquid inlet pipe 208 at the appropriate position can be selected as the inlet according to the actual situation of the on-site pipeline. It should be noted that after the inlet is selected, the other two manifold liquid inlet pipes 208 should be sealed with sealing plates welded at the ends. Further optionally, a packing plate body 4 filled with ceramic fillers is coaxially arranged in the inner periphery of the middle position of the washing tower body 3, and a plate support frame 401 is fixedly connected to the position below the packing plate body 4 in the inner periphery of the washing tower body 3, and the packing plate body 4 is placed on the top of the plate support frame 401. With such an arrangement, it is convenient to use the filler of the packing plate body 4 to allow the passing exhaust gas and alkali solution to come into efficient contact, thereby improving the absorption and purification effect of the exhaust gas. More specifically, the packing plate body 4 is a glass fiber reinforced plastic grid made of petals and the ceramic filler filled is a ceramic ball ring. The plate support frame 401 at the bottom of the packing plate body 4 is a steel pipe frame, and the gap between the petals of the grid of the packing plate body 4 and the installation direction of the steel pipe frame of the plate support frame 401 are perpendicular to each other, so that the packing plate body 4 can be smoothly installed on site, and the packing plate body 4 can also be firmly arranged in the washing tower body 3 with the help of the plate support frame 401.

[0038] With the above structure, specifically in the operation and use of the washing tower body 3, since an alkali liquid spraying assembly 2 is provided on the upper part of the washing tower body 3, and the alkali liquid spraying assembly 2 is respectively composed of an upper spray gun mounting pipe 201, a middle spray system manifold 205 and a lower spray gun mounting pipe 209 from top to bottom, the upper spray gun mounting pipe 201 and the lower spray gun mounting pipe 209 are coaxially mounted with the spray gun body 202. In this way, a double-layer alkali liquid spraying liquid supply dispersion method can be realized with the help of the upper and lower layers of the spray gun body 202, thereby improving the spraying and dispersion effect of the alkali liquid, and then making it easier for the alkali liquid to flow downward together with the exhaust gas through the filler plate body 4, thereby improving the control of the exhaust gas. Treatment effect, at the same time, since the alkali liquid spraying component 2 is provided with a ring-shaped spraying system manifold 205, and a plurality of manifold liquid outlet pipes 206 and a manifold liquid inlet pipe 208 are provided on the periphery of the spraying system manifold 205, the plurality of manifold liquid outlet pipes 206 are connected to the spray gun connecting pipe 203 of the adjacent spray gun body 202 through the metal hose 204 respectively, so as to realize the stable liquid supply to the upper and lower layers of the spray gun body 202, ensuring that the double-layer sprayed alkali liquid has good and stable liquid supply conditions. At the same time, since a plurality of manifold liquid inlet pipes 208 are provided, it is convenient to select the manifold liquid inlet pipe 208 at a suitable position as the inlet according to the actual situation of the on-site pipeline when installing the pipeline on site, thereby providing The flexibility and applicability of the manifold inlet pipe 208 when arranged on site are improved. Specifically, when it comes to actual liquid supply, the discharge pipe 303 and the manifold inlet pipe 208 serving as the inlet are connected to the liquid suction pipe and the liquid supply pipe of the external suction liquid supply pump equipment respectively, so that the alkali liquid at the bottom of the washing tower body 3 can be sucked into the spray system manifold 205 through the external liquid supply pump to supply liquid to multiple spray gun bodies 202. Since the filler plate body 4 is a glass fiber reinforced plastic grid made of petals, and the plate support frame 401 at the bottom of the filler plate body 4 is a steel pipe frame, the filler plate body 4 can be smoothly installed on site, and with the help of the plate support frame 401, the filler plate body 4 can also be firmly arranged in the washing tower. Inside the tower body 3, the treatment effect of the exhaust gas is further improved. Since the washing tower body 3 is provided with three inspection holes 301 and they are arranged in sequence from top to bottom in the height direction, the alkali liquid spraying operation of the alkali liquid spraying assembly 2 can be directly observed through the inspection hole 301 at the upper position. At the same time, the operation of the filler plate body 4 can be directly observed through the inspection hole 301 at the middle position, and the on-site installation of the filler plate body 4 is convenient. At the same time, the inspection hole 301 at the lower position can directly observe the liquid level of the alkali liquid. Moreover, since the washing tower body 3 is provided with a baffle 306 at the inner end of the outlet pipe 307, the liquid entrainment in the exhaust gas can be reduced through the setting of the baffle 306.

[0039] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A washing tower, comprising a washing tower body (3), characterized in that: The top of the washing tower body (3) is open and a conical head (1) for entering exhaust gas is coaxially installed through a lifting lug (101). An alkali liquid spraying assembly (2) with a double-layer alkali liquid spraying function is installed at a position below the conical head (1) on the top of the washing tower body (3).

2. A washing tower according to claim 1, characterized in that: The bottom surface of the washing tower body (3) is a tower body base (305) for supporting the tower body, and a plurality of tower body reinforcing ribs (304) are fixedly connected to the outer periphery of the bottom of the washing tower body (3) at positions circumferentially connected to the tower body base (305), and a sewage pipe (309) for discharging sewage is fixedly connected to the front position of the bottom of the washing tower body (3).

3. A washing tower according to claim 1, characterized in that: A dosing pipe (302) is installed on one side of the bottom of the washing tower body (3), the inner end of which extends into the bottom of the washing tower body (3), and the bottom of the washing tower body (3) is fixedly connected to a drain pipe (303) for draining liquid at a position below the dosing pipe (302).

4. A washing tower according to claim 3, characterized in that: The other side of the bottom of the scrubbing tower body (3) is fixedly connected to a pH detection tube (308), and the scrubbing tower body (3) is fixedly connected to an outlet pipe (307) for discharging treated waste gas at a position above the pH detection tube (308), and a baffle (306) for reducing liquid entrainment in the discharged waste gas is installed at the inner end of the outlet pipe (307) inside the scrubbing tower body (3).

5. A washing tower according to claim 1, characterized in that: The front portion of the washing tower body (3) is provided with three inspection holes (301), and the three inspection holes (301) are arranged in sequence from top to bottom in the height direction.

6. A washing tower according to any one of claims 2 to 5, characterized in that: The alkali solution spray assembly (2) comprises an upper spray gun mounting pipe (201), a spray system manifold (205), a lower spray gun mounting pipe (209) and a spray gun body (202); the upper spray gun mounting pipe (201), the spray system manifold (205) and the lower spray gun mounting pipe (209) are respectively located at the top of the washing tower body (3) below the conical head (1); the upper spray gun mounting pipe (201) is located at the upper layer, the spray system manifold (205) is located at the middle layer, and the lower spray gun mounting pipe (209) is located at the lower layer; the upper spray gun mounting pipe (201) and the lower spray gun mounting pipe (209) are both multiple in number and are all arranged along the radial direction of the washing tower body (3) and fixed to the washing tower body (3). The upper spray gun mounting pipe (201) and the lower spray gun mounting pipe (209) are both coaxially interspersed with the spray gun body (202) whose inner end extends into the washing tower body (3), and the end of the spray gun body (202) extending outside the washing tower body (3) is provided with a spray gun pipe (203). The spray system manifold (205) is an annular pipe and is coaxially fixed to the periphery of the washing tower body (3) through a manifold support plate (207). The outer periphery of the spray system manifold (205) is fixedly connected with a plurality of manifold liquid outlet pipes (206) and manifold liquid inlet pipes (208) arranged in a radial direction, and the spray gun pipes (203) are all connected to the manifold liquid outlet pipes (206) at a nearby position through a metal hose (204).

7. A washing tower according to claim 6, characterized in that: The number of the upper spray gun mounting tubes (201) and the lower spray gun mounting tubes (209) is between three and six, and the upper and lower upper spray gun mounting tubes (201) and the lower spray gun mounting tubes (209) are staggered in the circumferential direction.

8. A washing tower according to claim 7, characterized in that: The spray system manifold (205) is an annular pipe formed by connecting the pipe flanges at the ends of multiple arc-shaped curved pipes end to end. The number of the manifold liquid inlet pipes (208) is three and they are evenly distributed in the circumferential direction.

9. A washing tower according to claim 7 or 8, characterized in that: A filler plate body (4) filled with ceramic fillers is coaxially arranged on the inner periphery of the middle position of the washing tower body (3); a plate body support frame (401) is fixedly connected to the inner periphery of the washing tower body (3) below the filler plate body (4), and the filler plate body (4) is placed on the top of the plate body support frame (401).

10. A washing tower according to claim 9, characterized in that: The filler plate body (4) is a glass fiber reinforced plastic grid made of petals and the ceramic filler filled is a ceramic ball ring. The plate support frame (401) at the bottom of the filler plate body (4) is a steel pipe frame, and the gap between the petals of the grid of the filler plate body (4) and the installation direction of the steel pipe frame of the plate support frame (401) are perpendicular to each other.

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