Waste gas treatment device with multi-stage circulating purification function

Abstract

The utility model discloses a waste gas treatment device with a multi-stage circulating purification function, relates to the technical field of waste gas purification equipment, and aims to provide the waste gas treatment device with the multi-stage circulating purification function, which can cool waste gas before the waste gas enters the purification equipment so as to reduce the influence of high temperature on the purification equipment. According to the technical scheme, the cooling device comprises an air inlet pipe, the air inlet pipe is spirally arranged, a cooling box is arranged on the side face of the air inlet pipe, cooling water is stored in the cooling box, a water inlet pipe is arranged on the cooling box, the other end of the water inlet pipe is connected with a water tank, and a water drainage pipe is arranged below the cooling box. The cooling box makes contact with the gas inlet pipe through cooling water stored in the cooling box, so that the temperature of the water inlet pipe is reduced, meanwhile, the gas inlet pipe exchanges heat with waste gas in the gas inlet pipe, the temperature of the waste gas is synchronously reduced, the purpose of rapidly cooling the waste gas is achieved, and the influence of the high-temperature waste gas on purification equipment is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas purification equipment, in particular to a waste gas treatment device with multi-stage circulation purification. Background Art

[0002] Waste gas treatment is an important environmental protection technology that aims to reduce the impact of waste gas generated in the industrial production process on the environment and human health. There are various waste gas treatment equipment and methods. Due to the large variety of substances in the waste gas, it is necessary to set up multi-stage purification equipment according to the harmful substances in it during purification. In addition, in order to improve the degree of purification, the waste gas will be recycled and purified multiple times. However, in industrial production, waste gas is often generated due to high temperature. The temperature of the waste gas is relatively high. When entering the purification equipment, the high temperature of the waste gas will corrode the components in the purification equipment, which will greatly reduce the life of the purification equipment in the long run. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides an exhaust gas treatment device with multi-stage circulation purification which can cool the exhaust gas before it enters the purification equipment to reduce the impact of high temperature on the purification equipment.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an exhaust gas treatment device with multi-stage circulation purification, comprising an air intake pipe, the other end of the air intake pipe is connected to a first-stage purifier, the other end of the first-stage purifier is connected to a second-stage purifier, the other end of the second-stage purifier is connected to a third-stage purifier, an exhaust pipe is provided at the outlet of the third-stage purifier, and a circulation pipe connected to the first-stage purifier is provided on the third-stage purifier, the air intake pipe is spirally arranged, and a cooling box is provided on the side, cooling water is stored in the cooling box, a water inlet pipe is provided on the cooling box, the other end of the water inlet pipe is connected to a water tank, and a drain pipe is provided under the cooling box.

[0007] Preferably, a water pump is provided in the drain pipe, and the water pump is used to increase the suction and lift of the drain pipe.

[0008] Preferably, a spray tower is provided at the other end of the drain pipe, and the spray tower is used to reduce the temperature of cooling water.

[0009] Preferably, a grille is provided on the side of the spray tower, and the grille is used to prevent dust from entering the spray tower.

[0010] Preferably, a dehumidification component is provided at the bottom end of the air intake pipe, and the dehumidification component is used to discharge the accumulated water in the air intake pipe.

[0011] Preferably, the moisture discharge component includes a moisture discharge port and a float ball. The moisture discharge port is opened at the bottom end of the intake pipe. The float ball is located on the moisture discharge port and has a size larger than that of the moisture discharge port.

[0012] Preferably, a connecting rod is provided on the inner wall of the intake pipe. A spring is provided below the connecting rod. The other end of the spring is connected to the float ball and applies a downward elastic force to the float ball.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the present utility model provides an exhaust gas treatment device with multi-stage cyclic purification, having the following beneficial effects:

[0015] 1. By providing a cooling box and an intake pipe, the cooling box uses the cooling water stored inside to contact the intake pipe, so that the temperature of the intake pipe is reduced. At the same time, the intake pipe exchanges heat with the exhaust gas inside it, so that the temperature of the exhaust gas is also reduced synchronously. And the intake pipe uses a spiral design to increase its length, improving the contact area between the intake pipe and the cooling water, achieving the purpose of quickly cooling the exhaust gas and avoiding the influence of high-temperature exhaust gas on the purification equipment.

[0016] 2. By providing a moisture discharge component, when the exhaust gas flows through the cooling box through the intake pipe, the temperature of the exhaust gas will be reduced. The water vapor contained in the exhaust gas will contact the inner wall of the intake pipe and form condensed water after the temperature is reduced. The condensed water flows downward by gravity inside the intake pipe and finally converges on the moisture discharge component. When the condensed water accumulates to a certain mass, it will trigger the moisture discharge component and discharge the condensed water, avoiding the influence of condensed water on the normal operation of the purification equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional schematic diagram of the present utility model;

[0018] Figure 2 is a three-dimensional schematic diagram of the cooling box of the present utility model;

[0019] Figure 3 is a sectional schematic diagram of the cooling box of the present utility model;

[0020] Figure 4 is the present utility model Figure 3 is an enlarged schematic diagram at position A in

[0021] In the figure: 1, intake pipe; 2, primary purifier; 3, secondary purifier; 4, tertiary purifier; 5, exhaust pipe; 6, circulation pipe; 7, cooling box; 8, moisture discharge component; 801, connecting rod; 802, spring; 803, moisture discharge port; 804, float ball; 9, water pump; 10, drain pipe; 11, water tank; 12, spray tower; 13, grid; 14, water inlet pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model 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 the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1-4 , an exhaust gas treatment device with multi-stage cyclic purification, including an intake pipe 1. The other end of the intake pipe 1 is connected to a primary purifier 2, the other end of the primary purifier 2 is connected to a secondary purifier 3, the other end of the secondary purifier 3 is connected to a tertiary purifier 4. An exhaust pipe 5 is provided at the outlet of the tertiary purifier 4, and a circulation pipe 6 connected to the primary purifier 2 is provided on the tertiary purifier 4. The intake pipe 1 is spirally arranged, and a cooling box 7 is provided on the side. Cooling water is stored in the cooling box 7. A water inlet pipe 14 is provided on the cooling box 7, and the other end of the water inlet pipe 14 is connected to a water tank 11. A drain pipe 10 is provided under the cooling box 7;

[0024] In the present utility model, the cooling box 7 and the intake pipe 1 are provided. The cooling box 7 can store the cooling water and make the cooling water contact with the intake pipe 1, use the cooling water to reduce the temperature of the intake pipe 1, and at the same time synchronously reduce the temperature of the exhaust gas in the intake pipe 1. And the intake pipe 1 uses a spiral design method to increase its contact area with the cooling water, further increasing the efficiency of exhaust gas cooling.

[0025] A water pump 9 is provided in the drain pipe 10, and the water pump 9 is used to increase the suction and lift of the drain pipe 10;

[0026] By setting the water pump 9, the water pump 9 can suck the cooling water in the cooling box 7 through the drain pipe 10. When the temperature of the cooling water increases, the water pump 9 can quickly discharge the cooling water. After the cooling water is discharged, a negative pressure will be generated in the cooling box 7, and the negative pressure in the cooling box 7 will suck the cooling water in the water tank 11 through the water inlet pipe 14 to achieve the purpose of cyclic water replenishment.

[0027] The other end of the drain pipe 10 is provided with a spray tower 12, and the spray tower 12 is used to reduce the temperature of the cooling water;

[0028] By setting the spray tower 12, the spray tower 12 can spray the high-temperature cooling water inside it. By using the internal grid-like structure, the high-temperature cooling water is made to contact the air, increasing the specific surface area of the cooling water, enabling it to quickly exchange heat with the air, and achieving the purpose of cooling and circulating the cooling water.

[0029] A grille 13 is provided on the side of the spray tower 12, and the grille 13 is used to prevent dust from entering the spray tower 12;

[0030] By setting the grille 13, the grille 13 can filter the air entering the spray tower 12, so that dust and impurities in the air will not enter it, avoiding the pollution of the cooling water by dust and impurities and affecting the circulation of the cooling water.

[0031] A moisture discharge component 8 is provided at the bottom end of the intake pipe 1. The moisture discharge component 8 is used to discharge the accumulated water in the intake pipe 1. The moisture discharge component 8 includes a moisture discharge port 803 and a floating ball 804. The moisture discharge port 803 is opened at the bottom end of the intake pipe 1, and the floating ball 804 is located on the moisture discharge port 803 and has a size larger than the moisture discharge port 803.

[0032] By setting the floating ball 804, the water vapor in the waste gas in the intake pipe 1 will condense into condensed water after cooling. The condensed water will gather at the bottom of the intake pipe 1 by gravity. The gathered condensed water will lift the floating ball 804, causing the floating ball 804 to separate from the moisture discharge port 803, and the condensed water is discharged through the opened moisture discharge port 803.

[0033] A connecting rod 801 is provided on the inner wall of the intake pipe 1. A spring 802 is provided under the connecting rod 801. The other end of the spring 802 is connected to the floating ball 804 and applies a downward elastic force to the floating ball 804.

[0034] By setting the spring 802, the spring 802 restricts the floating ball 804 by its own elastic force. When the amount of condensed water gathered is small, the buoyancy of the floating ball 804 cannot push open the spring 802, so that the floating ball 804 will only open the moisture discharge port 803 after a certain amount of condensed water has gathered. The remaining condensed water can cooperate with the floating ball 804 to avoid the leakage of waste gas.

[0035] Working principle:

[0036] The waste gas enters the primary purifier 2 through the intake pipe 1. At the same time, the waste gas exchanges heat with the cooling water in the cooling tank 7 through the intake pipe 1 to reduce its own temperature. Then the waste gas passes through the primary purifier 2, the secondary purifier 3 and the tertiary purifier 4 for purification, and the purified waste gas is discharged through the exhaust pipe 5.

[0037] After the temperature of the cooling water rises, the water pump 9 pumps the cooling water into the spray tower 12 through the drain pipe 10. The cooling water cooled by the spray tower 12 enters the water tank 11 for storage. At the same time, when the cooling water in the cooling tank 7 decreases, a negative pressure will be generated. The cooling tank 7 uses the negative pressure and the intake pipe 14 to pump the cooling water in the water tank 11.

[0038] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present invention.

Claims

1. An exhaust gas treatment device with multi-stage cyclic purification, comprising an intake pipe (1), the other end of the intake pipe (1) is connected to a primary purifier (2), the other end of the primary purifier (2) is connected to a secondary purifier (3), the other end of the secondary purifier (3) is connected to a tertiary purifier (4), an exhaust pipe (5) is provided at the outlet of the tertiary purifier (4), and a circulation pipe (6) connected to the primary purifier (2) is provided on the tertiary purifier (4), and it is characterized in that: The intake pipe (1) is arranged in a spiral shape, and a cooling tank (7) is provided on the side. Cooling water is stored in the cooling tank (7). An inlet pipe (14) is provided on the cooling tank (7), and the other end of the inlet pipe (14) is connected to a water tank (11). A drain pipe (10) is provided under the cooling tank (7).

2. The waste gas treatment device with multi-stage cyclic purification according to claim 1, wherein: A water pump (9) is provided in the drain pipe (10), and the water pump (9) is used to increase the suction force and lift of the drain pipe (10).

3. The waste gas treatment device with multi-stage cyclic purification according to claim 1, characterized in that: The other end of the drain pipe (10) is provided with a spray tower (12), and the spray tower (12) is used to reduce the temperature of the cooling water.

4. The waste gas treatment device with multi-stage cyclic purification according to claim 3, characterized in that: A grille (13) is provided on the side of the spray tower (12), and the grille (13) is used to prevent dust from entering the spray tower (12).

5. The waste gas treatment device with multi-stage cyclic purification according to claim 1, characterized in that: A moisture discharge component (8) is provided at the bottom end of the intake pipe (1), and the moisture discharge component (8) is used to discharge the accumulated water in the intake pipe (1).

6. The waste gas treatment device with multi-stage cyclic purification according to claim 5, characterized in that: The moisture discharge component (8) includes a moisture discharge port (803) and a float (804). The moisture discharge port (803) is opened at the bottom end of the intake pipe (1), and the float (804) is located on the moisture discharge port (803) and has a size larger than the moisture discharge port (803).

7. The waste gas treatment device with multi-stage cyclic purification according to claim 6, characterized in that: A connecting rod (801) is provided on the inner wall of the intake pipe (1). A spring (802) is provided under the connecting rod (801), and the other end of the spring (802) is connected to the float (804) and applies a downward elastic force to the float (804).

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