Flue gas desulfurization tower with spray distributor

Abstract

The utility model discloses a desulfurization flue gas tower with a spray distributor, which relates to the technical field of desulfurization flue gas towers, and comprises a main body unit, a filter unit and a spray unit which are arranged in the main body unit, and a feeding unit and a cleaning unit which are arranged at the side part of the main body unit, the cleaning unit is adjacent to the filtering unit; the filter unit comprises an adsorption filter plate mounted on the inner side wall of the main body unit, a protective shell mounted in the main body unit and positioned above the adsorption filter plate, a screw rod movably arranged in the protective shell, a cleaning piece arranged on the screw rod, and a driving motor mounted on the screw rod. According to the flue gas desulfurization tower with the spraying distributor, the filtering unit and the spraying unit are arranged, so that atomized liquid is prevented from being directly sprayed to the side wall of the tower body as far as possible, the corrosion to the inner wall of the tower body is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization flue towers, and particularly relates to a desulfurization flue tower with a spray distributor. Background Art

[0002] Flue gas desulfurization refers to the process of removing sulfur oxides from flue gas or other industrial waste gases, and is one of the important technical measures for preventing and controlling air pollution. According to whether water is added during the desulfurization process and the dry-wet form of the desulfurization product, the flue gas desulfurization methods are mainly divided into three categories: wet method, semi-dry method, and dry method. During the desulfurization process, a desulfurization tower is mostly used as a reaction vessel, which is a commonly used tower-type reaction equipment for desulfurizing flue gas or other industrial waste gases.

[0003] After retrieval, the publication (announcement) number: CN205340541U discloses a desulfurization flue tower with a spray distributor, which includes a tower body and a chimney connected to the top of the tower body. The inner cavity of the tower body is sequentially provided with a demister, a spray distributor, and a desulfurization slurry pool from top to bottom. At least one spray layer is arranged between the demister and the spray distributor in the inner cavity of the tower body. An air inlet is opened between the spray distributor and the desulfurization slurry pool on the tower body. A circulation pipeline connecting the spray layer and the desulfurization slurry pool is arranged on the outer side wall of the tower body. A dehydration device is arranged in the inner cavity of the chimney. The structure of this utility model is reasonably designed, with high desulfurization efficiency, energy conservation, and environmental protection.

[0004] Although the above scheme can meet the requirements of desulfurizing high-sulfur and low-sulfur coal flue gas under different load conditions by operating different numbers of circulation pumps and demisters, during the spraying process, the nozzles close to the side wall of the tower body will inevitably spray some liquid onto the side wall of the tower body, which will cause corrosion to the inner wall of the tower body during long-term use and reduce the service life. Therefore, we propose a desulfurization flue tower with a spray distributor. Content of the Utility Model

[0005] The main purpose of the utility model is to provide a desulfurization flue tower with a spray distributor, and by setting a filtering unit and a spraying unit, to solve the problem that during the spraying process, the nozzles close to the side wall of the tower body will inevitably spray some liquid onto the side wall of the tower body, which will cause corrosion to the inner wall of the tower body during long-term use and reduce the service life.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A desulfurization flue tower with a spray distributor includes a main body unit, and also includes a filtering unit and a spraying unit arranged in the main body unit, as well as a feeding unit and a cleaning unit arranged on the side of the main body unit. And the spraying unit is located above the filtering unit, and the cleaning unit is adjacent to the filtering unit;

[0008] The filtering unit includes an adsorption filter plate installed on the inner side wall of the main body unit, a protective shell installed inside the main body unit and above the adsorption filter plate, a lead screw movably arranged in the protective shell, a cleaning member arranged on the lead screw, and a driving motor installed on the lead screw;

[0009] The spraying unit includes a solution tank arranged on one side of the main body unit, a liquid pumping pump installed on the top of the solution tank, a liquid suction pipe installed at the input end of the liquid pumping pump and communicated with the inside of the solution tank, and a spraying distribution member arranged inside the solution tank.

[0010] Preferably, the main body unit includes a spray tower, support feet installed at the bottom of the spray tower, and an exhaust pipe installed at the top of the spray tower.

[0011] Preferably, the main body unit further includes a demister installed on the inner wall of the spray tower and above the spraying unit, and a dehydration device installed on the inner wall of the exhaust pipe.

[0012] Preferably, the cleaning member includes a moving member installed on the lead screw, a connecting plate installed at the bottom of the moving member, and a cleaning soft brush installed at the bottom of the connecting plate.

[0013] Preferably, the spraying distribution member includes a main pipe installed at the output end of the liquid pumping pump and penetrating into the spray tower, branch pipes installed on the side wall of the main pipe, and vertical nozzles and inclined nozzles installed at the bottom of the branch pipes, and the inclined nozzles are located outside the vertical nozzles.

[0014] Preferably, the feeding unit includes a smoke inlet pipe penetrating through the side wall of the spray tower and below the adsorption filter plate, a gas distributor installed on the smoke inlet pipe below the adsorption filter plate, and a regulating valve movably arranged in the smoke inlet pipe.

[0015] Preferably, the cleaning unit includes a slag discharge groove opened on the side wall of the spray tower, a sealing plate movably arranged in the slag discharge groove, and a push-pull handle installed on the side wall of the sealing plate.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the present utility model, through the provided filtering unit and spraying unit, after the adsorption and filtration plate filters the flue gas introduced from the smoke inlet pipe for a period of time, the driving motor drives the lead screw to rotate, and the moving part drives the cleaning soft brush to move along the lead screw, thereby cleaning and aggregating the solid particles generated by the reaction of the reaction solution and the sulfur dioxide gas in the flue gas above the adsorption and filtration plate, and opening the sealing plate to take out these aggregated solid particles to ensure the subsequent adsorption and filtration effect on the flue gas; after the flue gas is subjected to adsorption and filtration treatment by the adsorption and filtration plate, the liquid extraction pump pumps out the solution in the solution tank through the liquid extraction pipe and inputs it into the branch pipe through the main pipe, and finally the vertical nozzle and the inclined nozzle spray the solution onto the flue gas; enabling the flue gas to be in full contact with the atomized liquid. The spray angle of the nozzles at the edge of the spray tower is the inclined nozzle. When the inclined nozzle sprays, the edge of the atomized area ejected is parallel to the side wall of the spray tower, which can prevent the atomized liquid from being directly sprayed onto the side wall of the tower as much as possible, thereby reducing the corrosion of the inner wall of the tower and extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a top-view structural schematic diagram of the present utility model;

[0020] Figure 3 is of the present utility model Figure 2 is a sectional structural schematic diagram at A-A in the present utility model;

[0021] Figure 4 is of the present utility model Figure 2 is a sectional structural schematic diagram at B-B in the present utility model;

[0022] Figure 5 is of the present utility model Figure 3 is a sectional structural schematic diagram at C-C in the present utility model.

[0023] In the figure:

[0024] 1. Main body unit; 101. Spray tower; 102. Support feet; 103. Smoke exhaust pipe; 104. Demister; 105. Dehydration device;

[0025] 2. Filtering unit; 201. Adsorption and filtration plate; 202. Protective shell; 203. Lead screw; 204. Cleaning part; 2041. Moving part; 2042. Connecting plate; 2043. Cleaning soft brush; 205. Driving motor;

[0026] 3. Spraying unit; 301. Solution tank; 302. Liquid extraction pump; 303. Liquid extraction pipe; 304. Spraying distribution part; 3041. Main pipe; 3042. Branch pipe; 3043. Vertical nozzle; 3044. Inclined nozzle;

[0027] 4. Feed unit; 401. Smoke inlet pipe; 402. Gas distributor; 403. Regulating valve;

[0028] 5. Cleaning unit; 501. Sealing plate; 502. Push-pull handle. Detailed implementation manners

[0029] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners. Embodiment

[0030] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, a desulfurization chimney tower with a spray distributor includes a main body unit 1, and further includes a filtering unit 2 and a spray unit 3 arranged in the main body unit 1, and a feed unit 4 and a cleaning unit 5 arranged on the side of the main body unit 1. The spray unit 3 is located above the filtering unit 2, and the cleaning unit 5 is adjacent to the filtering unit 2;

[0031] As Figure 3 shown, the filtering unit 2 includes an adsorption filter plate 201 installed on the inner side wall of the main body unit 1, a protective shell 202 installed inside the main body unit 1 and located above the adsorption filter plate 201, a lead screw 203 movably arranged in the protective shell 202, a cleaning member 204 arranged on the lead screw 203, and a driving motor 205 installed on the lead screw 203. When the driving motor 205 drives the lead screw 203 to rotate, the cleaning member 204 moves along the lead screw 203;

[0032] As Figure 3 shown, the spray unit 3 includes a solution tank 301 arranged on one side of the main body unit 1, a liquid pumping pump 302 installed on the top of the solution tank 301, a liquid suction pipe 303 installed at the input end of the liquid pumping pump 302 and communicated with the inside of the solution tank 301, and a spray distribution member 304 arranged inside the solution tank 301. The liquid pumping pump 302 can pump out the solution in the solution tank 301 through the liquid suction pipe 303.

[0033] As Figure 1 shown, the main body unit 1 includes a spray tower 101, support feet 102 installed at the bottom of the spray tower 101, and a smoke exhaust pipe 103 installed at the top of the spray tower 101. The setting of the support feet 102 provides support for the stable operation of the entire desulfurization chimney tower.

[0034] As Figure 2 and Figure 3As shown in the figure, the main body unit 1 further includes a demister 104 installed on the inner wall of the spray tower 101 and above the spray unit 3, and a dehydration device 105 installed on the inner wall of the exhaust pipe 103. The dehydration device 105 can be used to mechanically remove the fog droplets in the flue gas.

[0035] As Figure 4 shown in the figure, the cleaning part 204 includes a moving part 2041 installed on the lead screw 203, a connecting plate 2042 installed at the bottom of the moving part 2041, and a cleaning soft brush 2043 installed at the bottom of the connecting plate 2042. The moving part 2041 drives the cleaning soft brush 2043 to move along the lead screw 203, and the cleaning soft brush 2043 can clean the solid particles above the adsorption and filtration plate 201.

[0036] As Figure 3 shown in the figure, the feeding unit 4 includes a smoke inlet pipe 401 penetrating the side wall of the spray tower 101 and below the adsorption and filtration plate 201, a gas distributor 402 installed on the smoke inlet pipe 401 below the adsorption and filtration plate 201, and a regulating valve 403 movably arranged in the smoke inlet pipe 401. The regulating valve 403 is provided to facilitate the regulation of the smoke inlet pipe 401.

[0037] As Figure 1 shown in the figure, the cleaning unit 5 includes a slag discharge groove opened on the side wall of the spray tower 101, a sealing plate 501 movably arranged in the slag discharge groove, and a push-pull handle 502 installed on the side wall of the sealing plate 501. The push-pull handle 502 is provided to facilitate the opening and closing of the sealing plate 501.

[0038] After the adsorption and filtration plate 201 filters the flue gas introduced from the smoke inlet pipe 401 for a period of time, the drive motor 205 drives the lead screw 203 to rotate, and the moving part 2041 drives the cleaning soft brush 2043 to move along the lead screw 203, so as to clean and gather the solid particles generated by the reaction of the reaction solution and the sulfur dioxide gas in the flue gas above the adsorption and filtration plate 201, and open the sealing plate 501 to take out these gathered solid particles to ensure the subsequent adsorption and filtration effect of the flue gas. Embodiment

[0039] As Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 shown in the figure, a desulfurization chimney with a spray distributor includes a main body unit 1, and further includes a filtering unit 2 and a spray unit 3 arranged in the main body unit 1, and a feeding unit 4 and a cleaning unit 5 arranged on the side of the main body unit 1, and the spray unit 3 is located above the filtering unit 2, and the cleaning unit 5 is adjacent to the filtering unit 2;

[0040] As Figure 3As shown in the figure, the filtering unit 2 includes an adsorption filter plate 201 installed on the inner side wall of the main body unit 1, a protective shell 202 installed inside the main body unit 1 and above the adsorption filter plate 201, a lead screw 203 movably arranged inside the protective shell 202, a cleaning member 204 arranged on the lead screw 203, and a driving motor 205 installed on the lead screw 203. During the process of the driving motor 205 driving the lead screw 203 to rotate, the cleaning member 204 moves along the lead screw 203.

[0041] As Figure 3 shown in the figure, the spraying unit 3 includes a solution tank 301 arranged on one side of the main body unit 1, a liquid extraction pump 302 installed on the top of the solution tank 301, a liquid suction pipe 303 installed at the input end of the liquid extraction pump 302 and communicated with the inside of the solution tank 301, and a spraying distribution member 304 arranged inside the solution tank 301. The liquid extraction pump 302 can extract the solution in the solution tank 301 through the liquid suction pipe 303.

[0042] As Figure 1 shown in the figure, the main body unit 1 includes a spray tower 101, support feet 102 installed at the bottom of the spray tower 101, and an exhaust pipe 103 installed at the top of the spray tower 101. The setting of the support feet 102 provides support for the stable operation of the entire desulfurization smoke tower.

[0043] As Figure 2 With Figure 3 shown in the figure, the main body unit 1 further includes a demister 104 installed on the inner wall of the spray tower 101 and above the spraying unit 3, and a dehydration device 105 installed on the inner wall of the exhaust pipe 103. The setting of the dehydration device 105 can be used to mechanically remove the fog droplets in the flue gas.

[0044] As Figure 4 shown in the figure, the cleaning member 204 includes a moving member 2041 installed on the lead screw 203, a connecting plate 2042 installed at the bottom of the moving member 2041, and a cleaning soft brush 2043 installed at the bottom of the connecting plate 2042. The moving member 2041 drives the cleaning soft brush 2043 to move along the lead screw 203, and the cleaning soft brush 2043 can clean the solid particles above the adsorption filter plate 201.

[0045] As Figure 5 shown in the figure, the spraying distribution member 304 includes a main pipe 3041 installed at the output end of the liquid extraction pump 302 and penetrating into the spray tower 101, branch pipes 3042 installed on the side wall of the main pipe 3041, and vertical nozzles 3043 and inclined nozzles 3044 installed at the bottom of the branch pipes 3042. The inclined nozzles 3044 are located outside the vertical nozzles 3043. The setting of the inclined nozzles 3044 prevents the sprayed solution from splashing onto the inner wall of the spray tower 101.

[0046] As Figure 3As shown in the figure, the feeding unit 4 includes a smoke inlet pipe 401 penetrating through the side wall of the spray tower 101 and located below the adsorption and filtration plate 201, a gas distributor 402 installed below the adsorption and filtration plate 201 in the smoke inlet pipe 401, and a regulating valve 403 movably arranged in the smoke inlet pipe 401. The setting of the regulating valve 403 facilitates the adjustment of the smoke inlet pipe 401.

[0047] As Figure 1 shown in the figure, the cleaning unit 5 includes a slag discharge groove opened on the side wall of the spray tower 101, a sealing plate 501 movably arranged in the slag discharge groove, and a push-pull handle 502 installed on the side wall of the sealing plate 501. The setting of the push-pull handle 502 facilitates the opening and closing of the sealing plate 501.

[0048] After the flue gas is subjected to the adsorption and filtration treatment by the adsorption and filtration plate 201, the liquid extraction pump 302 pumps out the solution in the solution tank 301 through the liquid extraction pipe 303, and inputs it into the branch pipe 3042 through the main pipe 3041. Finally, the solution is sprayed onto the flue gas by the vertical nozzle 3043 and the inclined nozzle 3044; so that the flue gas is in full contact with the atomized liquid. The spraying angle of the nozzle at the edge of the spray tower 101 is the inclined nozzle 3044. When the inclined nozzle 3044 sprays, the edge of the sprayed atomized area is parallel to the side wall of the spray tower 101, which can prevent the atomized liquid from being directly sprayed onto the side wall of the tower as much as possible, thereby reducing the corrosion of the inner wall of the tower and extending the service life.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A desulfurization tower with a spray distributor, comprising a main unit (1), characterized in that: It also comprises a filtering unit (2) and a spraying unit (3) arranged in the main body unit (1), and a feeding unit (4) and a cleaning unit (5) arranged on the side of the main body unit (1), wherein the spraying unit (3) is located above the filtering unit (2), and the cleaning unit (5) is adjacent to the filtering unit (2); The filter unit (2) comprises an adsorption filter plate (201) mounted on the inner side wall of the main unit (1), a protective shell (202) mounted inside the main unit (1) and located above the adsorption filter plate (201), a screw rod (203) movably arranged in the protective shell (202), a cleaning member (204) arranged on the screw rod (203), and a driving motor (205) mounted on the screw rod (203); The spray unit (3) comprises a solution tank (301) arranged on one side of the main unit (1), a liquid extraction pump (302) installed on the top of the solution tank (301), a liquid extraction pipe (303) installed at the input end of the liquid extraction pump (302) and connected to the solution tank (301), and a spray distribution member (304) arranged inside the solution tank (301).

2. A desulfurization tower with a spray distributor according to claim 1, characterized in that: The main unit (1) comprises a spray tower (101), a support leg (102) installed at the bottom of the spray tower (101), and a smoke exhaust pipe (103) installed at the top of the spray tower (101).

3. A desulfurization tower with a spray distributor according to claim 2, characterized in that: The main unit (1) further comprises a demister (104) installed on the inner wall of the spray tower (101) and located above the spray unit (3), and a dehydration device (105) installed on the inner wall of the smoke exhaust pipe (103).

4. A desulfurization tower with a spray distributor according to claim 3, characterized in that: The cleaning member (204) comprises a moving member (2041) mounted on the screw rod (203), a connecting plate (2042) mounted at the bottom of the moving member (2041), and a soft cleaning brush (2043) mounted at the bottom of the connecting plate (2042).

5. The desulfurization flue gas tower with a spray distributor according to claim 1, characterized in that: The spray distribution component (304) comprises a main pipe (3041) installed at the output end of the liquid pump (302) and extending into the spray tower (101), a branch pipe (3042) installed on the side wall of the main pipe (3041), and a vertical spray head (3043) and an inclined spray head (3044) installed at the bottom of the branch pipe (3042), wherein the inclined spray head (3044) is located outside the vertical spray head (3043).

6. A desulfurization tower with a spray distributor according to claim 2, characterized in that: The feed unit (4) comprises a smoke inlet pipe (401) penetrating the side wall of the spray tower (101) and located below the adsorption filter plate (201), a gas distributor (402) installed on the smoke inlet pipe (401) and located below the adsorption filter plate (201), and a regulating valve (403) movably arranged in the smoke inlet pipe (401).

7. A desulfurization tower with a spray distributor according to claim 2, characterized in that: The cleaning unit (5) comprises a slag discharge trough provided on the side wall of the spray tower (101), a sealing plate (501) movably arranged in the slag discharge trough, and a push-pull handle (502) installed on the side wall of the sealing plate (501).

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