Waste gas treatment device

Abstract

The utility model belongs to the field of environmental protection, in particular relates to a waste gas treatment device, and provides the following scheme aiming at the problems that the conventional waste gas treatment device can cause accelerated aging and damage of waste gas purification equipment when being used for purifying waste gas with higher temperature, the waste gas treatment efficiency is influenced, and a single treatment device cannot be used for effectively purifying the waste gas. The waste gas purification device comprises a cooling tower and a purification box, a fan is arranged on one side of the cooling tower, the air supply end of the fan is fixedly communicated with a waste gas pipe, the other end of the waste gas pipe is fixedly communicated with the cooling tower, and the top of the cooling tower is fixedly communicated with a connecting pipe. Through comprehensive application of multiple treatment technologies such as physical cooling, chemical absorption and adsorption purification, the device can efficiently remove harmful substances such as sulfur dioxide, nitrogen oxide, particulate matter and volatile organic compounds in waste gas, the waste gas emission concentration is remarkably reduced, the cooling assembly adopts a water circulation system for cooling treatment, and the cooling effect is good. The waste gas temperature can be effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of environmental protection, in particular to an exhaust gas treatment device. Background Art

[0002] Exhaust gas contains various harmful substances such as sulfur dioxide, nitrogen oxides, particulate matter and volatile organic compounds. If these substances are directly discharged into the atmosphere without treatment, it will cause serious impact on air quality, and then threaten human health and the safety of the ecological system. When the temperature of the exhaust gas is relatively high, directly purifying the exhaust gas will cause the exhaust gas purification equipment to age and be damaged rapidly, affecting the exhaust gas treatment efficiency. Since the exhaust gas contains various harmful substances, a single treatment device cannot effectively purify the exhaust gas.

[0003] In view of the above problems, the present utility model document proposes an exhaust gas treatment device. Summary of the Utility Model

[0004] The purpose of the present utility model is to solve the disadvantages in the prior art that purifying exhaust gas with a relatively high temperature will cause the exhaust gas purification equipment to age and be damaged rapidly, affecting the exhaust gas treatment efficiency, and a single treatment device cannot effectively purify the exhaust gas, and to propose an exhaust gas treatment device.

[0005] In order to achieve the above purpose, the present utility model adopts the following technical scheme:

[0006] An exhaust gas treatment device includes a cooling tower and a purification box. A blower is provided on one side of the cooling tower. The air supply end of the blower is fixedly communicated with an exhaust gas pipe, and the other end of the exhaust gas pipe is fixedly communicated with the cooling tower. The top of the cooling tower is fixedly communicated with a connecting pipe;

[0007] Inside the purification box, a first solution tank, a second solution tank and a plurality of adsorption plates are fixedly connected respectively. Sulfuric acid is contained in the first solution tank, sodium hydroxide solution is contained in the second solution tank, and activated carbon is provided inside the adsorption plate.

[0008] A cooling component, which is arranged inside the cooling tower and is used for cooling the exhaust gas.

[0009] In a possible design, the cooling component includes a water tank, which is fixedly communicated with the circumference of the cooling tower. A water pump is fixedly connected to the upper surface of the water tank. The water inlet end of the water pump is fixedly communicated with the water tank, the water outlet end of the water pump is fixedly communicated with a water pipe, an annular pipe is fixedly connected inside the cooling tower, a plurality of spray heads are fixedly communicated with the circumference of the annular pipe, and the annular pipe is fixedly communicated with the water pipe.

[0010] In a possible design, the other end of the connecting pipe passes through the purification tank and is located inside the first solution tank. A first through pipe is provided between the first solution tank and the second solution tank. One end of the first through pipe is located above the first solution tank, and the other end of the first through pipe is located inside the second solution tank. The upper surface of the second solution tank is fixedly communicated with a second through pipe, and the other end of the second through pipe is communicated with one of the adsorption plates.

[0011] In a possible design, a plurality of clamping strips are fixedly connected inside the purification tank, and the adsorption plates are respectively installed in the clamping strips.

[0012] In a possible design, a sealing plate is provided on the upper surface of the purification tank, a pressing plate is provided on the upper surface of the sealing plate, and a plurality of screws are respectively provided on both sides of the pressing plate. All the plurality of screws are threadedly connected with the purification tank.

[0013] In a possible design, an exhaust pipe is fixedly communicated with one side of the purification tank close to the adsorption plate, and a rain shield is fixedly connected to the top of the exhaust pipe.

[0014] In this application, the waste gas is sucked into the waste gas pipe by a fan and enters the cooling tower. Inside the cooling tower, the cooling component is used to cool the waste gas, reduce its temperature and initially remove some particulate matter.

[0015] The cooled waste gas enters the first solution tank of the purification tank through the connecting pipe, contacts with the sulfuric acid solution, and initially treats the acidic substances in the waste gas. Subsequently, the waste gas enters the second solution tank through the first through pipe and reacts with the sodium hydroxide solution to further neutralize the acid-base components in the waste gas.

[0016] The waste gas that has undergone chemical treatment then enters the adsorption plate filled with activated carbon through the second through pipe. The porous structure of the activated carbon can effectively adsorb harmful substances in the waste gas, such as hydrogen sulfide, ammonia, volatile organic compounds (VOCs), etc., to achieve deep purification.

[0017] The finally treated waste gas is discharged through the exhaust pipe, meeting the environmental protection emission standards. During the whole process, the sealed design of the purification tank ensures the treatment efficiency, and at the same time, the fastening of the pressing plate and the screws prevents gas leakage.

[0018] Beneficial effects:

[0019] In the present utility model, for the waste gas treatment device, through the comprehensive application of various treatment technologies such as physical cooling, chemical absorption, and adsorption purification, the device can efficiently remove harmful substances in the waste gas, such as sulfur dioxide, nitrogen oxides, particulate matter, and volatile organic compounds, and significantly reduce the waste gas emission concentration.

[0020] In the present utility model, for the described waste gas treatment device, the cooling component uses a water circulation system for cooling treatment. It can not only effectively reduce the temperature of the waste gas, but also realize the recycling of water resources, reduce energy consumption and wastewater discharge. The activated carbon in the adsorption plate also has a high regeneration utilization rate, reducing the operating cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 FIG. 6 is a front view structural schematic diagram of a waste gas treatment device proposed by the present utility model;

[0022] Figure 2 FIG. 10 is a sectional view structural schematic diagram of a purification box of a waste gas treatment device proposed by the present utility model;

[0023] Figure 3 FIG. 14 is a sectional view structural schematic diagram of a cooling tower of a waste gas treatment device proposed by the present utility model;

[0024] Figure 4 FIG. 18 is an exploded view structural schematic diagram of a purification box of a waste gas treatment device proposed by the present utility model.

[0025] In the figures: 1, cooling tower; 2, purification box; 3, waste gas pipe; 4, fan; 5, connecting pipe; 6, exhaust pipe; 7, first solution tank; 8, second solution tank; 9, first through pipe; 10, second through pipe; 11, clamping strip; 12, adsorption plate; 13, water pump; 14, water pipe; 15, annular pipe; 16, spray head; 17, sealing plate; 18, pressing plate; 19, water tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0027] Embodiment 1

[0028] Refer to Figures 1-4 , a treatment device includes: a cooling tower 1, a purification box 2, a fan 4, a waste gas pipe 3, a connecting pipe 5, a first solution tank 7, a second solution tank 8, an adsorption plate 12, and a cooling component. Specifically, during implementation, first assemble the cooling tower 1, install the fan 4 on one side of it. The air supply end of the fan 4 is fixedly connected and communicated with the cooling tower 1 through the waste gas pipe 3. The top of the cooling tower 1 is fixedly connected with the connecting pipe 5, and this connecting pipe 5 leads the cooled waste gas into the purification box 2;

[0029] Inside the purification box 2, first install the first solution tank 7 and the second solution tank 8. Sulfuric acid is filled in the first solution tank 7, which is used for the preliminary treatment of acidic substances in the waste gas. Sodium hydroxide solution is filled in the second solution tank 8, which is used to neutralize the alkaline waste gas. Specifically, sodium hydroxide is a strong base that can react with various acidic and reactive gases (such as sulfur dioxide, nitrogen oxides, hydrogen sulfide, etc.) to undergo neutralization reactions. A plurality of adsorption plates 12 are also installed in the purification box 2. These adsorption plates 12 are filled with activated carbon, which is used to adsorb harmful substances in the waste gas;

[0030] The cooling component includes a water tank 19, a water pump 13, a water pipe 14, an annular pipe 15 and a plurality of nozzles 16. The water tank 19 is fixed on one side of the circumference of the cooling tower 1. The water in the water tank 19 is pumped into the water pipe 14 through the water pump 13, and then distributed to each nozzle 16 through the annular pipe 15 and sprayed out to form a water mist to cool the waste gas entering the cooling tower 1. The sprayed water falls into the cooling tower 1 and the water tank 19 and is recycled. The heavier particulate matter in the waste gas will also fall in the cooling tower 1 and be collected uniformly;

[0031] The other end of the connecting pipe 5 passes through the purification box 2 and extends into the interior of the first solution tank 7, so that the cooled waste gas first enters the sulfuric acid solution for preliminary treatment. Subsequently, the waste gas enters the second solution tank 8 through the first through pipe 9 and reacts with the sodium hydroxide solution for further purification. The treated waste gas then enters the adsorption plate 12 filled with activated carbon through the second through pipe 10 for the final adsorption treatment.

[0032] This application can be used for waste gas treatment and can also be used in other fields applicable to this application.

[0033] Embodiment 2

[0034] Reference Figures 1-4 , on the basis of Embodiment 1, an improvement is made: An exhaust gas treatment device,

[0035] The adsorption plate 12 is fixed inside the purification box 2 through the clamping strip 11 to ensure its stability. A sealing plate 17 is installed on the upper surface of the purification box 2 and fastened through the pressing plate 18 and screws to ensure the sealing performance during the treatment process;

[0036] The treated waste gas is discharged through the exhaust pipe 6 fixed on one side of the purification box 2. A rain shield is installed at the top of the exhaust pipe 6 to prevent rainwater from entering.

[0037] However, as is well known to those skilled in the art, the working principles and wiring methods of the fan 4 and the water pump 13 are common knowledge, and they both belong to conventional means or well-known common sense, so they will not be elaborated here. Those skilled in the art can make arbitrary selections according to their needs or convenience.

[0038] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. An exhaust gas treatment device, characterized in that: include: A cooling tower (1) and a purification box (2), wherein a fan (4) is provided on one side of the cooling tower (1), an air supply end of the fan (4) is fixedly connected to an exhaust pipe (3), the other end of the exhaust pipe (3) is fixedly connected to the cooling tower (1), and the top of the cooling tower (1) is fixedly connected to a connecting pipe (5); The purification box (2) is respectively and fixedly connected with a first solution box (7), a second solution box (8) and a plurality of adsorption plates (12), wherein the first solution box (7) is filled with sulfuric acid, the second solution box (8) is filled with sodium hydroxide solution, and the adsorption plates (12) are provided with activated carbon; A cooling component is arranged inside a cooling tower (1) and is used to cool exhaust gas.

2. The exhaust gas treatment device according to claim 1, characterized in that: The cooling assembly comprises a water tank (19), the water tank (19) is fixedly connected to the circumference of the cooling tower (1), a water pump (13) is fixedly connected to the upper surface of the water tank (19), a water inlet end of the water pump (13) is fixedly connected to the water tank (19), a water outlet end of the water pump (13) is fixedly connected to a water pipe (14), an annular pipe (15) is fixedly connected to the interior of the cooling tower (1), a plurality of nozzles (16) are fixedly connected to the circumference of the annular pipe (15), and the annular pipe (15) is fixedly connected to the water pipe (14).

3. The exhaust gas treatment device according to claim 1, characterized in that: The other end of the connecting pipe (5) passes through the purification box (2) and is located inside the first solution box (7); a first through pipe (9) is provided between the first solution box (7) and the second solution box (8); one end of the first through pipe (9) is located above the first solution box (7); the other end of the first through pipe (9) is located inside the second solution box (8); a second through pipe (10) is fixedly connected to the upper surface of the second solution box (8); the other end of the second through pipe (10) is connected to one of the adsorption plates (12).

4. The exhaust gas treatment device according to claim 3, characterized in that: A plurality of clamping strips (11) are fixedly connected to the interior of the purification box (2), and the adsorption plates (12) are respectively installed in the clamping strips (11).

5. The exhaust gas treatment device according to claim 4, characterized in that: A sealing plate (17) is provided on the upper surface of the purification box (2), a pressing plate (18) is provided on the upper surface of the sealing plate (17), and a plurality of screws are provided on both sides of the pressing plate (18), and the plurality of screws are all threadedly connected to the purification box (2).

6. The exhaust gas treatment device according to claim 5, characterized in that: The side of the purification box (2) close to the adsorption plate (12) is fixedly connected to an exhaust pipe (6), and the top of the exhaust pipe (6) is fixedly connected to a rain shield.

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