Flue gas treatment device of waste gas incineration system

Abstract

The utility model discloses a flue gas treatment device of a waste gas incineration system, which comprises a gas bin, a gas outlet pipe is connected on the outer wall of the lateral upper part of the gas bin, a gas inlet pipe corresponding to the gas outlet pipe is arranged on the lateral lower part of the gas bin, a cover plate is arranged at the top of the gas bin, a handle is arranged on the upper surface of the cover plate, and a gas outlet pipe is arranged on the upper surface of the cover plate. A support is fixed to the lower surface of the cover plate, a filter element supporting plate is fixed to the other end of the support and installed on a supporting plate, the supporting plate is fixed to the inner wall of the air bin, the filter element supporting plate penetrates through the supporting plate to be provided with a filter element, a filter element bottom plate is installed at the bottom of the filter element, a heating pipe is tightly wound around the air bin, and the heating pipe is connected with the air bin. A water pump is connected to the lower side of the heating pipe and connected with a water inlet pipe and a circulating pipe through a three-way pipe. By means of the device, gas generated by incineration can be effectively filtered, air pollution is prevented, heat generated by combustion can be fully utilized, and water is circularly heated.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a flue gas treatment device for a waste gas incineration system. Background Technology

[0002] Waste gas incinerators treat waste gas through combustion, converting harmful substances in the waste gas into harmless or low-toxicity substances. However, the incineration process generates a large amount of flue gas, which may contain many unburned particulate matter, causing air pollution. Furthermore, the incineration process generates a significant amount of heat; directly releasing this heat into the air would waste resources. Therefore, we propose a flue gas treatment device for waste gas incineration systems to address these issues. Utility Model Content

[0003] This utility model provides a flue gas treatment device for a waste gas incineration system, which solves the problems of unburned particles entering the atmosphere during the emission of waste gas from the incinerator, which easily causes air pollution, and the waste of a large amount of heat energy after incineration, which causes resource waste.

[0004] This utility model provides a flue gas treatment device for a waste gas incineration system, including a gas chamber. An outlet pipe is connected to the upper outer wall of the gas chamber, and an inlet pipe corresponding to the outlet pipe is located on the lower side of the gas chamber. A cover plate is installed on the top of the gas chamber, with a handle on its upper surface and a bracket fixed to its lower surface. A filter element support plate is fixed to the other end of the bracket, and the filter element support plate is mounted on the support plate. The support plate is fixed to the inner wall of the gas chamber, and a filter element is installed through the support plate. A filter element base plate is installed at the bottom of the filter element. Heating pipes are tightly wound around the gas chamber, and a water pump is connected to the lower side of each heating pipe. The water pump is connected to an inlet pipe and a circulation pipe via a T-junction. A first control valve is installed on the inlet pipe, and a check valve is installed on the circulation pipe. The other end of the circulation pipe is connected to an outlet pipe and the heating pipe via a T-junction. A temperature sensor is installed inside the outlet pipe, and a second control valve is installed on the outlet pipe. The temperature sensor is located on the inlet side of the second control valve.

[0005] Preferably, a fan is installed on the air intake pipe.

[0006] Preferably, an insulation layer is provided on the outside of the heating tube, the insulation layer is fixed on the outer wall of the air chamber, and the water inlet pipe, the water outlet pipe and the circulation pipe are wrapped with a pipe insulation layer.

[0007] Preferably, a discharge valve is installed at the bottom of the gas chamber.

[0008] Preferably, the first control valve and the second control valve are solenoid valves.

[0009] Preferably, a sealing ring is provided between the filter element support plate and the support plate.

[0010] Preferably, the liquid flow direction in the check valve is from top to bottom.

[0011] As can be seen from the above scheme, this utility model provides a flue gas treatment device for a waste gas incineration system. When in use, the fan is first turned on, and the waste gas from the incinerator enters the gas chamber through the inlet pipe. The waste gas is filtered by the filter element and finally discharged through the outlet pipe. The impurities generated by the waste gas are filtered by the filter element and eventually fall to the bottom of the gas chamber. When they accumulate to a certain level, the discharge valve is opened to discharge them. At the same time as the fan is running, the first control valve and the second control valve are opened, and the water pump starts to work. The cold water in the inlet pipe enters the heating pipe along the outer wall of the silo for heating. A temperature sensor is installed before the second control valve of the outlet pipe. If the water temperature is not heated to the preset temperature, the first control valve and the second control valve are closed. At this time, the water in the heating pipe is circulated and heated. A check valve is installed on the circulation pipe, which can ensure that the water is circulated and heated when the first control valve and the second control valve are closed, and can also prevent water from flowing from the bottom to the top when the first control valve and the second control valve are open. If the temperature sensor detects that the temperature meets the preset temperature, the first control valve and the second control valve are opened, and a new round of heating is carried out.

[0012] As can be seen from the above technical solutions, this utility model provides a flue gas treatment device for a waste gas incineration system.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The filter element filters the gas after incineration to prevent fine particles from being emitted into the atmosphere and causing air pollution.

[0015] 2. By heating water through heating elements, the heat energy generated by combustion is fully utilized, thus avoiding resource waste;

[0016] 3. By circulating and heating the water, it can be heated to the required temperature to meet different needs.

[0017] In summary, by using this application, the gases produced by incineration can be effectively filtered to prevent air pollution, and the heat generated by combustion can be fully utilized to circulate and heat water to achieve different temperatures as needed. Attached Figure Description

[0018] To more clearly illustrate the technical solution of this utility model, the drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of a flue gas treatment device for a waste gas incineration system proposed in this utility model.

[0020] Figure 2 This is an overall appearance view of the flue gas treatment device of a waste gas incineration system proposed in this utility model.

[0021] Figure 3 This is a top view of a flue gas treatment device for a waste gas incineration system proposed in this utility model.

[0022] In the diagram: 1. Air chamber, 2. Handle, 3. Cover plate, 4. Bracket, 5. Filter element support plate, 6. Air outlet pipe, 7. Support plate, 8. Insulation layer, 9. Heating tube, 10. Filter element, 11. Filter element base plate, 12. Fan, 13. Air inlet pipe, 14. Discharge valve, 15. Water pump, 16. First control valve, 17. Second control valve, 18. Check valve, 19. Temperature sensor, 20. Pipe insulation layer, 21. Water inlet pipe, 22. Water outlet pipe, 23. Circulation pipe. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0024] See Figure 1-3A flue gas treatment device for a waste gas incineration system is disclosed, applied in the field of waste gas treatment technology. It can filter the incinerated waste gas and recover and utilize the heat energy generated during heating. Specifically, it includes a gas chamber 1, with an outlet pipe 6 connected to the upper outer wall of the gas chamber 1, and an inlet pipe 13 corresponding to the outlet pipe 6 on the lower side of the gas chamber 1. The inlet pipe 13 and the outlet pipe 6 are arranged diagonally, which allows the waste gas to be more evenly dispersed within the gas chamber and ensures that the outer wall of the gas chamber 1 is evenly heated.A cover plate 3 is installed on the top of the gas chamber 1. A handle 2 is installed on the upper surface of the cover plate 3, and a bracket 4 is fixed to the lower surface of the cover plate 3. A filter element support plate 5 is fixed to the other end of the bracket 4. The filter element support plate 5 is installed on the support plate 7. A sealing ring is installed between the filter element support plate 5 and the filter element support plate 7 to prevent the filtered flue gas from escaping from here. The support plate 7 is fixed to the inner wall of the gas chamber 1. A round hole is opened on the support plate 7, the size of which is larger than the diameter of the filter element 10 but smaller than the diameter of the filter element support plate 5. The filter element 10 is installed through the round hole on the support plate 7. A filter element bottom plate 11 is installed at the bottom of the filter element 10. The filter element bottom plate 11 prevents the exhaust gas from escaping from the exhaust pipe 6 at the bottom, thus preventing the filter from escaping. If the filter element 10 needs to be replaced, the handle 2 can be lifted directly using a lifting device. The handle 2 will move the cover plate 3, which is connected to the filter device. After the entire filter device is lifted out, the filter element 10 can be replaced. This method allows for convenient and quick inspection and replacement of the filter element 10 without affecting the filtration effect. Heating tubes 9 are tightly wrapped around the air chamber 1. A water pump 15 is connected to the lower side of the heating tubes 9. The water pump 15 is connected to an inlet pipe 21 and a circulation pipe 23 via a three-way pipe. A first control valve 16 is installed on the inlet pipe 21, and a check valve 18 is installed on the circulation pipe 23. This is because during circulating heating, the water flow direction in the circulation pipe 23 is from top to bottom. Therefore, when installing the check valve 18, the water flow direction inside the check valve 18 should also be from top to bottom. The other end of the circulation pipe 23 is connected to the outlet pipe 22 and the heating pipe 9 via a tee. A temperature sensor 19 is installed inside the outlet pipe 22, and a second control valve 17 is installed in the outlet pipe 22. The temperature sensor 19 is located on the inlet side of the second control valve 17. During use, the water pump 15 pumps water into the heating pipe 9, and the temperature sensor 19 senses the water temperature. If the water temperature does not reach the required temperature, the first control valve 16 and the second control valve 17 are closed. Because the valves need to be controlled by the temperature sensor 19, the first control valve 16... The second control valve 17 requires a solenoid valve. Water circulates between the heating tube 9 and the circulation tube 23 for heating. If the temperature received by the temperature sensor 19 has reached the required water temperature, the first control valve 16 and the second control valve 17 are opened, hot water is released from the outlet pipe 22, and cold water to be heated flows in from the inlet pipe. Because of the presence of the check valve 18, the water will not flow into the circulation tube 23. When the temperature sensor 19 senses a drop in temperature, the first control valve 16 and the second control valve 17 are closed, and a new cycle begins. Heating in this way can make full use of the heat energy generated by the combustion gas, and the water can be heated to different temperatures according to actual needs.

[0025] In this invention, a fan 12 is installed on the air inlet pipe 13, which can pressurize the exhaust gas a second time, thereby increasing the filtration efficiency and heat recovery efficiency.

[0026] In this utility model, an insulation layer 8 is provided on the outside of the heating tube 9. The insulation layer 8 is fixed on the outer wall of the air chamber 1. The water inlet pipe 21, water outlet pipe 22 and circulation pipe 23 are wrapped with a pipe insulation layer 20. The insulation layer on the outside of the heating tube 9 can prevent heat loss during the heating process and improve heating efficiency.

[0027] In this invention, a discharge valve 14 is installed at the bottom of the air chamber 1. When the air chamber 1 needs to be cleaned, the discharge valve 14 can be opened to discharge the filter residue. The process is simple and quick and will not affect production efficiency.

[0028] As can be seen from the above technical solution, during use, the blower 12 is first turned on, and the exhaust gas from the incinerator enters the gas chamber 1 through the inlet pipe 13. The exhaust gas is filtered by the filter element 10 and finally discharged through the outlet pipe 6. The impurities generated by the exhaust gas are filtered by the filter element 10 and eventually fall to the bottom of the gas chamber 1. When they accumulate to a certain level, the discharge valve 14 is opened to discharge them. At the same time as the blower 12 is running, the first control valve 16 and the second control valve 17 are opened, and the water pump 15 starts to work. The cold water in the inlet pipe 21 enters the heating pipe 9 along the outer wall of the silo 1 for heating. The second outlet pipe 22... A temperature sensor 19 is installed before the control valve 17. If the water temperature is not heated to the preset temperature, the first control valve 16 and the second control valve 17 are closed. At this time, the water in the heating pipe 9 is circulated and heated. A check valve 18 is installed on the circulation pipe 23, which can ensure that the water is circulated and heated when the first control valve 16 and the second control valve 17 are closed, and can also prevent water from flowing from the bottom to the top when the first control valve 16 and the second control valve 17 are open. If the temperature sensor 19 detects that the temperature meets the preset temperature, the first control valve 16 and the second control valve 17 are opened, and a new round of heating is carried out.

[0029] Other embodiments of the present invention will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. The present invention is intended to cover any variations, uses, or adaptations of the invention that follow the general principles of the invention and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of the invention is indicated by the claims.

[0030] It should be understood that this utility model is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model.

Claims

1. A flue gas treatment device of a waste incineration system, comprising a gas chamber (1), characterized in that: The side upper outer wall of the air chamber (1) is connected with an air outlet pipe (6), the side lower part of the air chamber (1) is provided with an air inlet pipe (13) corresponding to the air outlet pipe (6), the top of the air chamber (1) is provided with a cover plate (3), the upper surface of the cover plate (3) is provided with a handle (2), the lower surface of the cover plate (3) is fixed with a support (4), the other end of the support (4) is fixed with a filter core support plate (5), the filter core support plate (5) is installed on a support plate (7), the support plate (7) is fixed on the inner wall of the air chamber (1), the filter core support plate (5) is installed with a filter core (10) through the support plate (7), the bottom of the filter core (10) is provided with a filter core bottom plate (11), the periphery of the air chamber (1) is tightly wound with a heating pipe (9), the lower side of the heating pipe (9) is connected with a water pump (15), the water pump (15) is connected with an inlet pipe (21) and a circulation pipe (23) through a three-way pipe, the first control valve (16) is installed on the inlet pipe (21), the non-return valve (18) is installed on the circulation pipe (23), the other end of the circulation pipe (23) is connected with an outlet pipe (22) and the heating pipe (9) through a three-way pipe, the temperature sensor (19) is installed in the outlet pipe (22), the second control valve (17) is installed on the outlet pipe (22), and the temperature sensor (19) is on the water inlet side of the second control valve (17).

2. A flue gas treatment apparatus of a waste incineration system according to claim 1, characterized by The air inlet pipe (13) is provided with a fan (12).

3. A flue gas treatment apparatus of a waste incineration system according to claim 1, wherein The outer side of the heating pipe (9) is provided with a heat preservation layer (8), the heat preservation layer (8) is fixed on the outer wall of the air chamber (1), the inlet pipe (21), the outlet pipe (22) and the circulation pipe (23) are wrapped with a pipe heat preservation layer (20).

4. A flue gas treatment apparatus of a waste incineration system according to claim 1, wherein The bottom of the air chamber (1) is provided with a discharge valve (14).

5. A flue gas treatment apparatus of a waste incineration system according to claim 1, wherein The first control valve (16) and the second control valve (17) are electromagnetic valves.

6. A flue gas treatment apparatus of a waste incineration system according to claim 1, wherein The filter core support plate (5) and the support plate (7) are provided with a sealing ring.

7. A flue gas treatment apparatus of a waste incineration system according to claim 1, wherein The liquid flow direction in the non-return valve (18) is from top to bottom.

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