Tail gas treatment device for polyaluminum chloride production

Abstract

The utility model relates to the technical field of tail gas treatment, in particular to a tail gas treatment device for producing polyaluminum chloride, which is characterized in that a treatment component is fixedly mounted at the upper part of a fixed seat, a circulating component is mounted at the position, corresponding to the treatment component, of the upper part of the fixed seat, and the treatment component comprises a treatment tower mounted in the middle of the upper part of the fixed seat; an air inlet pipe is fixedly mounted at the middle section in the treatment tower, an air outlet cylinder is fixedly mounted at the top of the treatment tower, a spraying mechanism is arranged in the treatment tower, the circulating assembly comprises a water adding pipe mounted at the liquid inlet end of the bottom of the treatment tower, and a circulating pump is mounted at the liquid inlet end of the water adding pipe; and a liquid storage tank is mounted at the liquid inlet end of the circulating pump. According to the tail gas treatment device for polyaluminum chloride production, treatment liquid can be recycled for multiple times, the consumption of the treatment liquid can be reduced, the environmental protection property of the device is improved, and a better use prospect is brought.

Description

Technical Field

[0001] The utility model relates to the technical field of tail gas treatment, in particular to a tail gas treatment device for polyaluminium chloride production. Background Art

[0002] Polyaluminium chloride is commonly known as water purifier, referred to as polyaluminium, English name PAC, and basic polyaluminium chloride, spray-dried polyaluminium chloride belong to the same related water purifiers. It is a polyhydroxyl, polynuclear complex cationic inorganic polymer flocculant. The solid product is yellow or white fixed powder.

[0003] The current mainstream production process is to use the aluminum hydroxide method to formulate polyaluminum chloride. Generally, aluminum hydroxide is heated and pressurized and then reacted with hydrochloric acid, and then calcium aluminate powder is added for neutralization. During the production process, hydrochloric acid evaporates when heated to produce hydrochloric acid gas. Therefore, it is necessary to treat the tail gas used in the production of polyaluminum chloride. For example, a Chinese patent discloses a tail gas treatment device for the production of polyaluminum chloride (authorization announcement number CN216537770U). The patented technology can extend the circulation time of tail gas in alkaline solution through a neutralization pipe, fully neutralize the hydrochloric acid gas in the tail gas, clean the neutralized tail gas through water washing, and finally discharge the treated tail gas to reduce air pollution and reduce physical harm to employees.

[0004] However, the above disclosed tail gas treatment equipment still has some defects when in use: the device cannot recycle the treatment liquid when in use, resulting in excessive consumption of the treatment liquid, affecting the effect of tail gas treatment. Therefore, those skilled in the art provide a tail gas treatment device for polyaluminium chloride production to solve the problems raised in the above background technology. Utility Model Content

[0005] The utility model aims to provide a tail gas treatment device for polyaluminium chloride production to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A tail gas treatment device for polyaluminium chloride production comprises a fixed seat, a treatment component is fixedly mounted on the upper part of the fixed seat, and a circulation component is mounted at a position of the upper part of the fixed seat corresponding to the treatment component;

[0008] The treatment assembly comprises a treatment tower installed in the middle of the upper part of the fixing base, an air inlet pipe is fixedly installed in the middle section of the interior of the treatment tower, an air outlet is fixedly installed on the top of the treatment tower, and a spray mechanism is arranged inside the treatment tower;

[0009] The circulation component includes a water adding pipe installed at the liquid inlet end at the bottom of the treatment tower, a circulation pump is installed at the liquid inlet end of the water adding pipe, a liquid storage tank is installed at the liquid inlet end of the circulation pump, a return liquid pipe is connected between the liquid inlet end of the liquid storage tank and the liquid outlet end of the treatment tower, a filter box is installed at the outside middle of the return liquid pipe, and the filter box is provided with a filtering mechanism.

[0010] As a further solution of the utility model: a push handle is fixedly installed on the upper edge of the fixing seat, and universal wheels are fixedly installed on the four corners of the bottom of the fixing seat.

[0011] As a further solution of the utility model: the spray mechanism includes an annular spray pipe installed inside the treatment tower, a connecting pipe is installed at the liquid inlet end of the annular spray pipe, and the liquid inlet end of the connecting pipe is connected to the liquid outlet end of the water adding pipe, and spray nozzles are installed equidistantly around the inside of the annular spray pipe.

[0012] As a further solution of the utility model: a connecting valve is installed at the liquid outlet of the treatment tower, and the outer end of the connecting valve is connected to the liquid return pipe, and a filter cover is installed at the inner bottom of the treatment tower corresponding to the position of the connecting valve.

[0013] As a further solution of the utility model: the top of the punching bag is threadedly connected with a top cover, an air outlet pipe is embedded in the interior of the top cover, a filter is installed in the middle of the interior of the punching bag, and activated carbon is installed in the middle of the interior of the filter.

[0014] As a further solution of the utility model: the filtering mechanism includes a box cover installed on the top of the filter box, the filter plates are installed equidistantly inside the filter box, and adsorption carbon is installed inside the filter box near the filter plates.

[0015] As a further solution of the utility model: a drainage pump is fixedly installed inside the filter box near the carbon adsorption position, and the liquid outlet end of the drainage pump is connected to the liquid inlet end of the liquid return pipe.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. A tail gas treatment device for polyaluminium chloride production. When in use, the waste gas is poured into the treatment tower through the air inlet pipe. At the same time, the treatment liquid in the liquid storage tank is poured into the connecting pipe through the circulation pump and the water supply pipe. The treatment liquid is sprayed downward to contact the waste gas in conjunction with the annular spray pipe and the spray nozzle, so that the waste gas can be effectively treated. After opening the connecting valve, the treated treatment liquid is poured into the filter box in conjunction with the return liquid pipe. After adsorption and filtration by the adsorption carbon and the filter plate, the treated treatment liquid is poured into the liquid storage tank again through the drainage pump, so that the treatment liquid can be recycled for many times, and the utilization rate of the treatment liquid is improved, which is better than the traditional method.

[0018] 2. A tail gas treatment device for the production of polyaluminium chloride. The waste gas after neutralization treatment will be discharged into the exhaust pipe. The particulate matter in the waste gas will be adsorbed through the combination of the filter net and the activated carbon. The waste gas can be discharged through the exhaust pipe, thereby improving the quality of waste gas treatment, which is better than the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a tail gas treatment device for polyaluminium chloride production;

[0020] Figure 2 This is a schematic diagram of the structure of a treatment tower in a tail gas treatment device for polyaluminium chloride production;

[0021] Figure 3 This is a schematic diagram of the structure of a gas outlet in a tail gas treatment device for polyaluminium chloride production;

[0022] Figure 4 The present invention is a schematic diagram of the structure of a filter box in a tail gas treatment device for the production of polyaluminium chloride.

[0023] In the figure: 1. fixing base; 2. treatment tower; 3. water supply pipe; 4. circulation pump; 5. liquid storage tank; 6. liquid return pipe; 7. filter box; 8. air inlet pipe; 9. push handle; 10. universal wheel; 11. connecting pipe; 12. annular spray pipe; 13. spray nozzle; 14. air outlet; 15. connecting valve; 16. filter cover; 17. filter net; 18. activated carbon; 19. top cover; 20. air outlet pipe; 21. box cover; 22. filter plate; 23. adsorption carbon; 24. drainage pump. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 4 In the embodiment of the utility model, a tail gas treatment device for polyaluminium chloride production includes a fixed seat 1, a treatment component is fixedly installed on the upper part of the fixed seat 1, and a circulation component is installed at the position of the upper part of the fixed seat 1 corresponding to the treatment component;

[0026] The treatment assembly includes a treatment tower 2 installed in the middle of the upper part of the fixing base 1, an air inlet pipe 8 is fixedly installed in the middle section of the interior of the treatment tower 2, an air outlet tube 14 is fixedly installed on the top of the treatment tower 2, and a spray mechanism is arranged inside the treatment tower 2; the spray mechanism includes an annular spray pipe 12 installed inside the treatment tower 2, a connecting pipe 11 is installed at the liquid inlet end of the annular spray pipe 12, and the liquid inlet end of the connecting pipe 11 is connected to the liquid outlet end of the water supply pipe 3, and the inner periphery of the annular spray pipe 12 is equidistantly installed with Spray nozzle 13, the liquid outlet end of the treatment tower 2 is installed with a connecting valve 15, and the outer end of the connecting valve 15 is connected to the liquid return pipe 6, and a filter cover 16 is installed at the position of the inner bottom of the treatment tower 2 corresponding to the connecting valve 15. The waste gas is poured into the treatment tower 2 through the air inlet pipe 8. At the same time, the treatment liquid alkali solution in the liquid storage tank 5 is poured into the connecting pipe 11 through the circulating pump 4 and the water supply pipe 3. The annular spray pipe 12 and the spray nozzle 13 are used to spray the treatment liquid downward to contact the waste gas, so that the waste gas can be effectively treated;

[0027] The circulation assembly includes a water supply pipe 3 installed at the liquid inlet end of the bottom of the treatment tower 2, a circulation pump 4 is installed at the liquid inlet end of the water supply pipe 3, a liquid storage tank 5 is installed at the liquid inlet end of the circulation pump 4, a liquid return pipe 6 is connected between the liquid inlet end of the liquid storage tank 5 and the liquid outlet end of the treatment tower 2, a filter box 7 is installed at the middle of the outer portion of the liquid return pipe 6, and the filter box 7 is provided with a filtering mechanism; the filtering mechanism includes a box cover 21 installed at the top of the filter box 7, filter plates 22 are equidistantly installed inside the filter box 7, and the inside of the filter box 7 is close to the filter plates 22. An adsorbent carbon 23 is installed at the position, and a drain pump 24 is fixedly installed inside the filter box 7 near the adsorbent carbon 23, and the liquid outlet end of the drain pump 24 is connected to the liquid inlet end of the return liquid pipe 6. After opening the connecting valve 15, the treated treatment liquid is poured into the filter box 7 in conjunction with the return liquid pipe 6. After adsorption and filtration by the adsorbent carbon 23 and the filter plate 22, the treated treatment liquid is poured into the liquid storage tank 5 again through the drain pump 24, so that the treatment liquid can be recycled multiple times, thereby improving the utilization rate of the treatment liquid.

[0028] exist Figure 1 Middle: A push handle 9 is fixedly installed at the upper edge of the fixed base 1, and universal wheels 10 are fixedly installed at the four corners of the bottom of the fixed base 1. The device can be moved by holding the push handle 9 and cooperating with the universal wheels 10.

[0029] exist Figure 1 and 3 Middle: It also includes a top cover 19 threadedly connected to the top of the air outlet 14, an air outlet pipe 20 is embedded inside the top cover 19, a filter screen 17 is installed in the middle of the interior of the air outlet 14, and activated carbon 18 is installed in the middle of the interior of the filter screen 17. The waste gas after neutralization treatment will be discharged into the air outlet 14, and the particulate matter in the waste gas will be adsorbed through the cooperation of the filter screen 17 and the activated carbon 18, so that the waste gas can be discharged through the air outlet pipe 20, thereby improving the quality of waste gas treatment.

[0030] The working principle of the utility model is as follows: when in use, the waste gas is poured into the treatment tower 2 through the air inlet pipe 8, and at the same time, the treatment liquid alkali solution in the liquid storage tank 5 is poured into the connecting pipe 11 through the circulating pump 4 and the water adding pipe 3, and the treatment liquid is sprayed downward to contact the waste gas in cooperation with the annular spray pipe 12 and the spray nozzle 13, so that the waste gas can be effectively treated, and after opening the connecting valve 15, the treated treatment liquid is poured into the filter box 7 in cooperation with the liquid return pipe 6, and after adsorption and filtration by the adsorption carbon 23 and the filter plate 22, the treated treatment liquid is poured into the liquid storage tank 5 again through the drainage pump 24, so that the treatment liquid can be recycled for many times, and the utilization rate of the treatment liquid is improved, and the waste gas after neutralization treatment will be discharged into the air outlet tube 14, and the particulate matter in the waste gas is adsorbed by the cooperation of the filter screen 17 and the activated carbon 18, and the effect of exhaust gas discharge through the air outlet pipe 20 is improved, thereby improving the quality of waste gas treatment, being convenient for users to use, and being more practical.

Claims

1. A tail gas treatment device for polyaluminium chloride production, comprising a fixing seat (1), characterized in that: A processing component is fixedly mounted on the upper part of the fixing seat (1), and a circulation component is mounted at a position on the upper part of the fixing seat (1) corresponding to the processing component; The treatment assembly comprises a treatment tower (2) mounted in the middle of the upper part of the fixing base (1), an air inlet pipe (8) being fixedly mounted in the middle section inside the treatment tower (2), an air outlet cylinder (14) being fixedly mounted on the top of the treatment tower (2), and a spray mechanism being arranged inside the treatment tower (2); The circulation assembly comprises a water supply pipe (3) installed at the liquid inlet end of the bottom of the treatment tower (2); a circulation pump (4) is installed at the liquid inlet end of the water supply pipe (3); a liquid storage tank (5) is installed at the liquid inlet end of the circulation pump (4); a liquid return pipe (6) is connected between the liquid inlet end of the liquid storage tank (5) and the liquid outlet end of the treatment tower (2); a filter box (7) is installed at the middle of the outside of the liquid return pipe (6); and the filter box (7) is provided with a filtering mechanism.

2. A tail gas treatment device for polyaluminium chloride production according to claim 1, characterized in that: A push handle (9) is fixedly mounted on the upper edge of the fixing seat (1), and universal wheels (10) are fixedly mounted on the four corners of the bottom of the fixing seat (1).

3. A tail gas treatment device for polyaluminium chloride production according to claim 1, characterized in that: The spray mechanism comprises an annular spray pipe (12) installed inside the treatment tower (2), a connecting pipe (11) being installed at the liquid inlet end of the annular spray pipe (12), and the liquid inlet end of the connecting pipe (11) being connected to the liquid outlet end of the water supply pipe (3), and spray nozzles (13) being installed equidistantly around the inside of the annular spray pipe (12).

4. A tail gas treatment device for polyaluminium chloride production according to claim 1, characterized in that: A connecting valve (15) is installed at the liquid outlet end of the treatment tower (2), and the outer end of the connecting valve (15) is connected to the liquid return pipe (6). A filter cover (16) is installed at the inner bottom of the treatment tower (2) at a position corresponding to the connecting valve (15).

5. A tail gas treatment device for polyaluminium chloride production according to claim 1, characterized in that: The top of the air outlet cylinder (14) is threadedly connected to a top cover (19), an air outlet pipe (20) is embedded and installed inside the top cover (19), a filter screen (17) is installed in the middle of the air outlet cylinder (14), and activated carbon (18) is installed in the middle of the filter screen (17).

6. A tail gas treatment device for polyaluminium chloride production according to claim 1, characterized in that: The filtering mechanism comprises a box cover (21) mounted on the top of a filter box (7), filter plates (22) are equidistantly mounted inside the filter box (7), and adsorption carbon (23) is mounted inside the filter box (7) near the filter plates (22).

7. A tail gas treatment device for polyaluminium chloride production according to claim 6, characterized in that: A drainage pump (24) is fixedly installed inside the filter box (7) near the position of the adsorbed carbon (23), and the liquid outlet end of the drainage pump (24) is connected to the liquid inlet end of the liquid return pipe (6).

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