Waste gas treatment device capable of realizing multiple waste heat recovery

Abstract

The utility model relates to the technical field of waste gas treatment, and provides a waste gas treatment device capable of multiple waste heat recovery, which comprises a drying tank and a purification tank, the peripheral surface of the purification tank is fixedly communicated with a liquid inlet pipe and a gas inlet pipe in sequence from top to bottom, and the inner cavity of the purification tank is filled with purification liquid through the liquid inlet pipe. And a flow promoting pump is arranged at the top between the drying tank and the purifying tank, the inner wall of the purifying tank is fixedly connected with an air guide pipe, and the air guide pipe is fixedly communicated with the air inlet pipe. The waste heat energy in the incineration waste gas is comprehensively utilized, the double effects of waste gas purification and production heating are achieved, resources are utilized to the maximum extent, energy waste is reduced, resource recycling is achieved, waste heat in the incineration waste gas is utilized to heat the drying tank, energy consumption can be reduced, production cost can be reduced, and meanwhile the energy-saving effect is achieved. And through the secondary utilization of the waste gas, the pollution to the environment is reduced, and the environmental protection requirements of energy conservation and emission reduction are met.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, and in particular to a waste gas treatment device capable of recovering multiple waste heat. Background Art

[0002] The waste gas treatment device with multiple waste heat recovery is a device that uses the waste heat in the waste gas generated during the industrial production process to recover energy and treat the waste gas. This device mainly includes two parts: waste gas treatment and waste heat recovery. There is a problem with the existing waste gas treatment device with waste heat recovery function, that is, after using the waste heat of the waste gas, the treated waste gas fails to meet the safe and environmentally friendly emission standards, resulting in the waste gas emission indicators not meeting the relevant regulations.

[0003] Therefore, a waste gas treatment device capable of recovering multiple waste heat is needed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an exhaust gas treatment device capable of recovering multiple waste heat.

[0005] The technical solution of the utility model is as follows: a waste gas treatment device capable of multiple waste heat recovery, comprising a drying tank and a purification tank, the circumference of the purification tank being fixedly connected with a liquid inlet pipe and an air inlet pipe in sequence from top to bottom, the inner cavity of the purification tank being filled with purification liquid through the liquid inlet pipe, and a flow-promoting pump being provided on the top between the drying tank and the purification tank.

[0006] Preferably, an air duct is fixedly connected to the inner wall of the purification tank, the air duct is fixedly connected to an air inlet pipe, and a plurality of air jets are fixedly connected to the outer wall of the air duct.

[0007] Preferably, a gas collecting hopper is fixedly connected to the bottom of the purification tank, and an activated carbon filter is fixedly installed on the inner wall of the gas collecting hopper.

[0008] Preferably, a limiting liquid ring is fixedly connected to the inner wall of the purification tank, and a liquid level sensor is fixedly installed on the bottom of the limiting liquid ring.

[0009] Preferably, the suction end of the flow-boosting pump is fixedly connected to the interior of the gas collecting hopper, the gas outlet end of the flow-boosting pump is fixedly connected to a plurality of shunt pipes, the inner wall of the drying tank is provided with a gas collecting cavity, and the plurality of shunt pipes are connected to the gas collecting cavity.

[0010] Preferably, an exhaust pipe communicating with the gas collecting chamber is fixedly connected to the outer wall of the drying tank for discharging the purified waste gas after utilizing the residual heat.

[0011] Preferably, a motor is fixedly mounted on the top of the drying tank, a rotating shaft is fixedly connected to the output end of the motor, and a stirring rod is fixedly connected to the outer wall of the rotating shaft.

[0012] The working principle and beneficial effects of the utility model are:

[0013] The utility model realizes the dual effects of waste gas purification and production heating by comprehensively utilizing the residual heat energy in the incineration waste gas, maximizes the utilization of resources, reduces energy waste, and realizes resource recycling. At the same time, the residual temperature in the incineration waste gas is used to heat the drying tank, which can reduce energy consumption and production costs. At the same time, the secondary utilization of the waste gas also helps to reduce pollution to the environment, which meets the environmental protection requirements of energy conservation and emission reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a schematic diagram of the three-dimensional structure proposed by the utility model;

[0016] Figure 2 It is a cross-sectional structural schematic diagram proposed by the utility model;

[0017] Figure 3 The utility model proposed Figure 2 Schematic diagram of the structure viewed from above;

[0018] Figure 4 The utility model proposed Figure 3 Schematic diagram of the enlarged structure of A.

[0019] In the figure: 1. Drying tank; 2. Purification tank; 3. Liquid inlet pipe; 4. Purification liquid; 5. Liquid limit ring; 6. Liquid level sensor; 7. Air inlet pipe; 8. Air guide pipe; 9. Injection head; 10. Gas collecting hopper; 11. Activated carbon filter; 12. Flow-enhancing pump; 13. Diverter pipe; 14. Gas collecting chamber; 15. Exhaust pipe; 16. Motor; 17. Rotating shaft; 18. Stirring rod. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] In the description of the present invention, "plurality" means two or more than two, unless otherwise clearly and specifically defined.

[0022] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0023] See also Figures 1 to 4 The utility model provides a technical solution for a waste gas treatment device capable of recovering multiple waste heat: a waste gas treatment device capable of recovering multiple waste heat, comprising a drying tank 1 and a purification tank 2, the circumference of the purification tank 2 is fixedly connected with a liquid inlet pipe 3 and an air inlet pipe 7 in sequence from top to bottom, the inner cavity of the purification tank 2 is filled with a purification liquid 4 through the liquid inlet pipe 3, and a flow-promoting pump 12 is provided on the top between the drying tank 1 and the purification tank 2;

[0024] Furthermore, an air guide pipe 8 is fixedly connected to the inner wall of the purification tank 2, and the air guide pipe 8 is fixedly connected to the air intake pipe 7. A plurality of nozzles 9 are fixedly connected to the outer wall of the air guide pipe 8. The exhaust gas is introduced into the air guide pipe 8 from the air intake pipe 7. The exhaust gas in the air guide pipe 8 is ejected through the plurality of nozzles 9 to contact the purification liquid 4, so that the exhaust gas and the purification liquid 4 are mixed, so that the harmful substances in the exhaust gas are adsorbed or converted in the process of contacting with the purification liquid 4, thereby achieving the purpose of purifying the exhaust gas;

[0025] Furthermore, a gas collecting hopper 10 is fixedly connected to the bottom of the purification tank 2, and an activated carbon filter 11 is fixedly installed on the inner wall of the gas collecting hopper 10. The exhaust gas purified by the purification liquid 4 floats up and passes through the activated carbon filter 11. The activated carbon has a high surface area and adsorption capacity, and can effectively adsorb organic pollutants in the exhaust gas, such as volatile organic compounds, which helps to further purify the exhaust gas and reduce pollution to the environment. The activated carbon can also adsorb odor substances in the exhaust gas, such as hydrogen sulfide, ammonia, etc.; by passing through the activated carbon filter, the odor emitted by the exhaust gas can be reduced, the air quality can be improved, and a better indoor and outdoor environment can be provided. As a part of the exhaust gas treatment system, the activated carbon filter 11 can further remove residual pollutants after being treated with the purification liquid 4, which can improve the overall efficiency of the exhaust gas treatment and make the exhaust gas finally discharged cleaner;

[0026] The inner wall of the purification tank 2 is fixedly connected to a limited liquid ring 5, and a liquid level sensor 6 is fixedly installed at the bottom of the limited liquid ring 5. The setting of the liquid level sensor 6 can prevent the purified liquid 4 from exceeding the limited liquid ring 5 when being poured in, and prevent the purified liquid 4 from overflowing from the liquid inlet pipe 3;

[0027] Furthermore, the suction end of the flow-promoting pump 12 is fixedly connected to the interior of the gas collecting bucket 10, and the gas outlet end of the flow-promoting pump 12 is fixedly connected to a plurality of shunt pipes 13. The inner wall of the drying tank 1 is provided with a gas collecting cavity 14, and a plurality of shunt pipes 13 are connected to the gas collecting cavity 14. The outer wall of the drying tank 1 is fixedly connected with an exhaust pipe 15 connected to the gas collecting cavity 14, which is used to discharge the purified waste gas after utilizing the waste heat. The purified waste gas is drawn into the plurality of shunt pipes 13 through the flow-promoting pump 12, and is transported to the gas collecting cavity 14 through the plurality of shunt pipes 13. After the incineration waste gas is treated by the purification liquid 4 and the activated carbon filter 11, there will be a certain degree of The mild residual temperature of the drying tank 1 is used to heat the inner cavity of the drying tank 1 through a mild heat flow, and then some materials are dried in a mild environment, such as some food raw materials, such as flour, grains, nuts, etc. These materials may lose their original texture or produce adverse chemical changes under high temperatures, so they need to be dried in a mild environment. If the original exhaust gas is directly used to heat the drying tank 1, it may cause excessively high temperatures, increase heat conduction and heat radiation, and thus cause thermal pollution problems. Using the residual temperature for heating can more accurately control the heating temperature and reduce the impact of thermal pollution on the working environment and equipment;

[0028] A motor 16 is fixedly installed on the top of the drying tank 1, and a rotating shaft 17 is fixedly connected to the output end of the motor 16, and a stirring rod 18 is fixedly connected to the outer wall of the rotating shaft 17. When drying the material, the motor 16 is started to make the output end drive the rotating shaft 17 to rotate, and the rotation of the rotating shaft 17 drives the stirring rod 18 to rotate and then stir the food raw materials. Stirring can prevent the food raw materials from sticking to each other during the drying process, maintain the dispersed state of the raw materials, and ensure the drying effect. At the same time, stirring can make the surface of the food raw materials constantly contact with the dry air, accelerate the evaporation of water, improve the drying efficiency, and shorten the drying time. The steam generated during the drying process is discharged from the exhaust pipe of the drying tank 1.

[0029] The working principle and use process of the utility model are as follows: the exhaust gas is introduced from the air inlet pipe 7 and sprayed out through a plurality of nozzles 9 to mix the exhaust gas with the purification liquid 4, so that the harmful substances in the exhaust gas are adsorbed or converted in the process of contacting with the purification liquid 4, which can effectively remove particulate matter, gaseous pollutants and odor substances in the exhaust gas, and the exhaust gas purified by the purification liquid 4 floats up and passes through the activated carbon filter 11, which can effectively adsorb organic pollutants in the exhaust gas, which is helpful to further purify the exhaust gas, and the purified exhaust gas is pumped into the gas collecting cavity 14 through the flow-promoting pump 12, and the inner cavity of the drying tank 1 is heated by a gentle heat flow, so as to dry some materials in a mild environment, and when the materials are dried, the motor 16 is started to rotate the stirring rod 18 to stir the food raw materials, so as to keep the raw materials in a dispersed state and ensure the drying effect, and the waste heat energy in the incineration exhaust gas is comprehensively utilized to achieve the dual effects of exhaust gas purification and production heating, maximize the utilization of resources, reduce energy waste, and realize resource recycling.

[0030] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A waste gas treatment device capable of recovering multiple waste heat, comprising a drying tank (1) and a purification tank (2), characterized in that: The circumferential surface of the purification tank (2) is fixedly connected with a liquid inlet pipe (3) and an air inlet pipe (7) in sequence from top to bottom, the inner cavity of the purification tank (2) is filled with purification liquid (4) through the liquid inlet pipe (3), and a flow-promoting pump (12) is provided at the top between the drying tank (1) and the purification tank (2).

2. The exhaust gas treatment device capable of multiple waste heat recovery according to claim 1, characterized in that: An air guide pipe (8) is fixedly connected to the inner wall of the purification tank (2), the air guide pipe (8) is fixedly connected to the air inlet pipe (7), and a plurality of air jet heads (9) are fixedly connected to the outer wall of the air guide pipe (8).

3. The exhaust gas treatment device capable of multiple waste heat recovery according to claim 1, characterized in that: The bottom of the purification tank (2) is fixedly connected to a gas collecting hopper (10), and an activated carbon filter (11) is fixedly installed on the inner wall of the gas collecting hopper (10).

4. The exhaust gas treatment device capable of multiple waste heat recovery according to claim 1, characterized in that: The inner wall of the purification tank (2) is fixedly connected to a limiting liquid ring (5), and a liquid level sensor (6) is fixedly installed at the bottom of the limiting liquid ring (5).

5. The exhaust gas treatment device capable of multiple waste heat recovery according to claim 1, characterized in that: The suction end of the flow-promoting pump (12) is fixedly connected to the interior of the gas collecting hopper (10), and the outlet end of the flow-promoting pump (12) is fixedly connected to a plurality of shunt pipes (13). The inner wall of the drying tank (1) is provided with a gas collecting cavity (14), and the plurality of shunt pipes (13) are connected to the gas collecting cavity (14).

6. The exhaust gas treatment device capable of multiple waste heat recovery according to claim 1, characterized in that: An exhaust pipe (15) in communication with the gas collecting chamber (14) is fixedly connected to the outer wall of the drying tank (1) and is used to discharge the purified waste gas after utilizing the residual heat.

7. The exhaust gas treatment device capable of multiple waste heat recovery according to claim 1, characterized in that: A motor (16) is fixedly mounted on the top of the drying tank (1), a rotating shaft (17) is fixedly connected to the output end of the motor (16), and a stirring rod (18) is fixedly connected to the outer wall of the rotating shaft (17).

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