A waste gas treatment device for high-temperature waste gas waste heat recycling

Abstract

The utility model provides a kind of waste gas treatment device for high-temperature waste gas waste heat recycling belongs to waste gas treatment technical field, to solve the problem that waste gas is cooled after flowing into waste gas treatment device and is purified, waste heat, energy utilization rate is low, including stand tower, purification tank and fan, stand tower bottom is provided with air inlet, air inlet is connected with stand tower top outlet by spiral air passage, temperature conduction chamber is formed between spiral air passage and stand tower inner wall, and stand tower top outlet is connected with purification tank top inlet by transition pipe, and purification tank top is connected with air outlet pipe, and air outlet pipe middle section is provided with fan.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas treatment technology, and more specifically, it relates to a waste gas treatment device for the reuse of waste heat from high-temperature waste gas. Background Technology

[0002] Waste gas treatment is a common gas purification process in chemical plant manufacturing to meet national emission standards. Waste gas treatment typically involves acid and alkali treatment, dust and odor removal, etc. The treatment process uses alkaline purified water to adsorb acidic substances in the waste gas, and also uses PE acid and alkali resistant spherical mesh for filtration. However, the waste gas produced in industrial production is often accompanied by high temperature. In order to ensure the purification effect, a section of waste gas pipeline is left for natural cooling. After being cooled in the waste gas pipeline, the waste gas flows into the waste gas treatment device for purification, which wastes heat and has low energy utilization.

[0003] Therefore, in view of this, we will study and improve the existing structure and its shortcomings, and provide a waste gas treatment device for the reuse of waste heat from high-temperature waste gas, in order to achieve a more practical purpose. Utility Model Content

[0004] To address the aforementioned technical problems, this utility model provides a waste gas treatment device for the reuse of waste heat from high-temperature waste gas, thereby solving the problem of waste heat being wasted and low energy utilization when waste gas flows into the waste gas treatment device for purification after being cooled through waste gas pipelines.

[0005] The purpose and effectiveness of this utility model for waste gas treatment device for high-temperature waste gas waste heat recovery are achieved by the following specific technical means:

[0006] A waste gas treatment device for high-temperature waste gas waste heat recovery includes a vertical tower, a purification chamber, and a fan. The bottom of the vertical tower is provided with an air inlet, which is connected to the top outlet of the vertical tower through a spiral air duct. A temperature conduction chamber is formed between the spiral air duct and the inner wall of the vertical tower. The vertical tower is provided with a liquid inlet pipe and a liquid outlet pipe. The liquid inlet pipe is connected to a circulating water tank, and the liquid outlet pipe is connected to a heat treatment device. The top outlet of the vertical tower is connected to the top inlet of the purification chamber through a transition pipe, and the top of the purification chamber is connected to an exhaust pipe. A fan is provided in the middle section of the exhaust pipe.

[0007] Furthermore, the top of the purification box is equipped with two sets of purification towers. The transition pipe is connected to the purification box through one set of purification towers, and the exhaust pipe is connected to the purification box through the other set of purification towers. The purification towers are equipped with a PE acid and alkali resistant spherical mesh layer and an activated carbon adsorption layer.

[0008] Furthermore, the purification tank is filled with alkaline purified water, and the level of the alkaline purified water is lower than the connection between the purification tower and the purification tank, so that there is a gas flow channel between the two purification towers.

[0009] Furthermore, a spray nozzle is provided on the top of the inner wall of the purification box, and a water pump is installed outside the purification box. The water inlet pipe connected to the water pump extends into the bottom of the purification box, and the water outlet pipe extends into the top of the purification box and is connected to the spray nozzle.

[0010] Furthermore, the inlet pipes are located at the bottom of the vertical tower, and a one-way valve is installed inside the inlet pipes.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] By setting up a vertical tower, the high-temperature waste gas produced in the factory can directly enter the tower and be cooled by rising through the spiral air passage. The temperature conduction chamber inside the tower can absorb the heat of the waste gas by replenishing circulating water from the external circulating water tank. The hot water that has absorbed the heat flows into the equipment that needs heat through the liquid outlet pipe for energy utilization, saving costs while maximizing the utilization of energy in waste gas treatment. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the internal structure of a waste gas treatment device for the reuse of waste heat from high-temperature waste gas, according to this utility model.

[0014] Figure 2 This is a perspective view of a waste gas treatment device for the reuse of waste heat from high-temperature exhaust gas, according to this utility model.

[0015] In the diagram, the correspondence between component names and drawing numbers is as follows:

[0016] 1. Vertical tower; 2. Air inlet; 3. Air outlet; 4. Fan; 5. Spiral air duct; 6. Transition pipe; 7. Purification tower; 8. Purification box; 9. Alkaline purified water; 10. Water pump; 11. Nozzle; 12. Liquid injection port; 13. Liquid discharge port; 101. Liquid inlet pipe; 102. Liquid outlet pipe; 103. Check valve; 104. Outlet. Detailed Implementation

[0017] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0018] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Example:

[0021] As attached Figure 1 To be continued Figure 2 As shown:

[0022] This utility model provides a waste gas treatment device for the reuse of waste heat from high-temperature waste gas, including a vertical tower 1, a purification box 8, and a fan 4. An air inlet 2 is provided at the bottom of the vertical tower 1, and the high-temperature waste gas can be directly connected to the air inlet 2. The air inlet 2 is connected to the top outlet 104 of the vertical tower 1 through a spiral air passage 5. A temperature conduction chamber is formed between the spiral air passage 5 and the inner wall of the vertical tower 1. An inlet pipe 101 and an outlet pipe 102 are respectively provided on the vertical tower 1. The inlet pipe 101 is connected to a circulating water tank, and the outlet pipe 102 is connected to a heat-using device. The high-temperature waste gas is cooled by rising through the spiral air passage 5, while the temperature conduction chamber inside the vertical tower 1 can absorb the heat of the waste gas by replenishing circulating water from the external circulating water tank. The hot water that has absorbed the heat flows into the equipment that needs heat through the outlet pipe for energy utilization, saving costs while maximizing the utilization of energy in waste gas treatment.

[0023] The spiral air passage 5 extends the flow of high-temperature exhaust gas in the vertical tower 1, allowing the circulating water to fully absorb the heat of the high-temperature exhaust gas; the liquid inlet pipe 101 is located at the bottom of the vertical tower 1, and a one-way valve 103 is installed in the liquid inlet pipe 101 to prevent the circulating water in the vertical tower 1 from flowing back.

[0024] The top outlet 104 of the vertical tower 1 is connected to the top inlet of the purification box 8 via the transition pipe 6. The top of the purification box 8 is connected to the exhaust pipe 3, and a fan 4 is installed in the middle section of the exhaust pipe 3. The fan 4 can generate suction on the bottom air inlet 2 of the vertical tower 1, so that the exhaust gas can enter the vertical tower 1 and finally be discharged from the exhaust pipe 3.

[0025] The purification box 8 is equipped with two sets of purification towers 7 at the top. The transition pipe 6 is connected to the purification box 8 through one set of purification towers 7, and the exhaust pipe 3 is connected to the purification box 8 through the other set of purification towers 7. The purification tower 7 is equipped with a PE acid and alkali resistant spherical mesh layer and an activated carbon adsorption layer. After being cooled by the vertical tower 1, the high-temperature exhaust gas enters the first set of purification towers 7 through the transition pipe 6. After being pretreated by the PE acid and alkali resistant spherical mesh layer and the activated carbon adsorption layer, it flows into the purification box 8.

[0026] The purification tank 8 is filled with alkaline purified water 9, and the level of alkaline purified water 9 is lower than the connection between the purification tower 7 and the purification tank 8, so that there is a gas flow channel between the two purification towers 7. After the alkaline purified water 9 performs acidic adsorption on the waste gas, it flows into the next purification tower 7 for treatment, and finally is discharged from the outlet pipe 3 under the action of the fan 4.

[0027] In order to fully treat the exhaust gas in the purification chamber 8, a nozzle 11 is installed on the top of the inner wall of the purification chamber 8, and a water pump 10 is installed outside the purification chamber 8. The water inlet pipe connected to the water pump 10 extends into the bottom of the purification chamber 8, and the water outlet pipe extends into the top of the purification chamber 8 and connects to the nozzle 11. During the process of exhaust gas entering the purification chamber 8, the water pump 10 sprays the liquid at the bottom of the purification chamber 8 through the nozzle 11 from the top to form water mist, so that the exhaust gas and liquid can fully contact each other and improve the purification efficiency.

[0028] The alkaline purified water 9 in the purification tank 8 is injected through the injection port 12 and discharged through the drain port 13 after use. The figure is a schematic diagram. The cap on the injection port 12 and the valve on the drain port 13 are not shown.

[0029] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A waste gas treatment device for reusing waste heat from high-temperature exhaust gas, characterized in that: The system includes a vertical tower (1), a purification chamber (8), and a fan (4). The bottom of the vertical tower (1) is provided with an air inlet (2). The air inlet (2) is connected to the top outlet (104) of the vertical tower (1) through a spiral air duct (5). A temperature conduction chamber is formed between the spiral air duct (5) and the inner wall of the vertical tower (1). The vertical tower (1) is provided with an inlet pipe (101) and an outlet pipe (102). The inlet pipe (101) is connected to a circulating water tank, and the outlet pipe (102) is connected to a heat-using device. The top outlet (104) of the vertical tower (1) is connected to the top inlet of the purification chamber (8) through a transition pipe (6). The top of the purification chamber (8) is connected to an outlet pipe (3), and a fan (4) is provided in the middle section of the outlet pipe (3).

2. The waste gas treatment device for high-temperature waste gas waste heat recovery as described in claim 1, characterized in that: The purification box (8) is equipped with two sets of purification towers (7) on the top. The transition pipe (6) is connected to the purification box (8) through one set of purification towers (7), and the exhaust pipe (3) is connected to the purification box (8) through the other set of purification towers (7). The purification tower (7) is equipped with a PE acid and alkali resistant spherical mesh layer and an activated carbon adsorption layer.

3. The waste gas treatment device for high-temperature waste gas waste heat recovery as described in claim 1, characterized in that: The purification tank (8) is filled with alkaline purified water (9), and the level of the alkaline purified water (9) is lower than the connection between the purification tower (7) and the purification tank (8), so that there is a gas flow channel between the two purification towers (7).

4. The waste gas treatment device for high-temperature waste gas waste heat recovery as described in claim 3, characterized in that: A nozzle (11) is provided on the top of the inner wall of the purification box (8). A water pump (10) is installed outside the purification box (8). The water inlet pipe connected to the water pump (10) extends into the bottom of the purification box (8), and the water outlet pipe extends into the top of the purification box (8) and connects to the nozzle (11).

5. The waste gas treatment device for high-temperature waste gas waste heat recovery as described in claim 1, characterized in that: The liquid inlet pipe (101) is located at the bottom of the vertical tower (1), and a one-way valve (103) is installed inside the liquid inlet pipe (101).

Images