Waste gas purification treatment equipment for heat accumulating type oxidizing furnace

Abstract

The utility model discloses heat accumulating type oxidizing furnace waste gas purification treatment equipment in the related technical field of waste gas purification treatment, which comprises a heat accumulating bed I and a heat accumulating bed II, the heat accumulating bed I and the heat accumulating bed II are connected with two ends of a combustion chamber through a connecting cavity, and a waste gas temporary storage tank is arranged on one side, far away from the combustion chamber, of the heat accumulating bed I; and the waste gas temporary storage tank is connected with the waste gas filtering box through a connecting pipe. According to the utility model, the waste gas supply pipe is firstly introduced into the waste gas filter box, and dust and solid particles in waste gas can be effectively filtered by utilizing the waste gas filter box, so that the influence of the dust and solid particles in the waste gas on a heat accumulator in the heat accumulation bed is reduced, and the service life of the heat accumulator is effectively prolonged; the waste gas purification treatment equipment is provided with a waste gas temporary storage tank and an air pressure detection sensor which are used for adjusting air inlet, it is ensured that waste gas purification combustion is within a proper air pressure range, then it is ensured that waste gas is fully combusted in a combustion chamber, and the waste gas purification treatment effect is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field related to waste gas purification and treatment, and specifically relates to waste gas purification and treatment equipment of a regenerative oxidation furnace. Background Art

[0002] The regenerative thermal oxidizer is a device that uses the principle of high-temperature decomposition of organic waste gas into water and carbon dioxide to treat organic waste gas. The regenerative thermal oxidizer consists of a furnace and two or more regenerative beds. Taking two regenerative beds as an example, the two regenerative beds will periodically absorb and release heat. After passing through the regenerative beds, the organic waste gas enters the furnace for combustion and decomposition. The temperature of the oxidized gas rises, and the organic matter is basically converted into carbon dioxide and water. The regenerative bed is mainly used for absorbing and releasing heat. The organic waste gas first passes through a heat-releasing regenerative bed, and the heat stored in the regenerative bed is used to heat the organic waste gas. However, the organic waste gas usually contains dust and solid particles. Dust and solid particles will adhere to the regenerative body of the regenerative bed, affecting the heat absorption and heat release process of the regenerative body. In the process of treating organic waste gas, when the air pressure is high, incomplete combustion will occur, affecting the waste gas treatment effect.

[0003] In view of this, the present utility model is proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a regenerative thermal oxidation furnace exhaust gas purification and treatment device. To solve the above technical problems, the basic concept of the technical solution adopted by the utility model is:

[0005] The waste gas purification treatment equipment of the thermal storage oxidation furnace comprises a thermal storage bed 1 and a thermal storage bed 2, wherein the thermal storage bed 1 and the thermal storage bed 2 are connected to the two ends of the combustion chamber through a connecting cavity, a waste gas temporary storage tank is arranged on the side of the thermal storage bed 1 away from the combustion chamber, the waste gas temporary storage tank is connected to the waste gas filter box through a connecting pipe, the air inlet end of the waste gas filter box is connected to the waste gas supply pipe, the waste gas supply pipe is equipped with a gas supply control valve, the air outlet end of the waste gas temporary storage tank is provided with a purification treatment air supply pipe, the purification treatment air supply pipe is equipped with an air pressure detection sensor, the other end of the purification treatment air supply pipe is connected to the first air inlet pipe and the second air inlet pipe through a three-way joint, the other end of the first air inlet pipe is connected to the first connecting end of the thermal storage bed 1, and the other end of the second air inlet pipe is connected to the second connecting end of the thermal storage bed 2, so as to supply the waste gas in the waste gas temporary storage tank to the thermal storage bed 1 and the thermal storage bed 2 respectively.

[0006] As a further solution of the utility model: a gas detector is arranged on the side of the exhaust gas temporary storage tank, one side of the gas detector is provided with a detection air inlet pipe, and the other side is provided with a detection air outlet pipe. The gas detector is used to perform compliance detection on the gas that has been purified by the thermal storage oxidation furnace to determine whether it meets the emission standards.

[0007] As a further solution of the utility model: one end of the first air inlet pipe close to the first connection end is connected to the detection air inlet pipe through a first return air pipe, and one end of the second air inlet pipe close to the second connection end is connected to the detection air inlet pipe through a second return air pipe, so as to supply the treated gas into the gas detector.

[0008] As a further solution of the utility model: the first air intake pipe, the second air intake pipe, the first air return pipe and the second air return pipe are all equipped with solenoid valves for controlling the on-off connection of the pipes.

[0009] As a further solution of the utility model: a support frame is arranged below the exhaust gas temporary storage tank, and heat storage bodies are arranged inside the heat storage bed 1 and the heat storage bed 2. The heat storage bodies are made of honeycomb ceramic material and have good heat storage performance.

[0010] After adopting the above technical scheme, the utility model has the following beneficial effects compared with the prior art.

[0011] The exhaust gas supply pipe of the utility model first passes into the exhaust gas filter box, and the exhaust gas filter box can effectively filter the dust and solid particles in the exhaust gas, reduce the impact of the dust and solid particles in the exhaust gas on the heat storage body in the heat storage bed, and effectively extend the service life of the heat storage body.

[0012] The waste gas purification treatment equipment of the utility model is provided with a waste gas temporary storage tank for temporarily storing waste gas. When the air pressure detection sensor detects the high pressure setting air pressure in the purification treatment air supply pipe, the air supply control valve is closed and the air intake is adjusted to ensure that the waste gas purification combustion is within a suitable air pressure range, thereby ensuring that the waste gas is fully burned in the combustion chamber and ensuring the waste gas purification treatment effect.

[0013] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings are part of this application and are used to provide a further understanding of the utility model. The schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute an improper limitation on the utility model. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is the front view of the utility model;

[0017] Figure 3 It is a top view of the utility model;

[0018] Figure 4 This is a schematic diagram of the pipeline connection between the heat storage bed and the gas storage tank of the utility model.

[0019] In the figure: 1. exhaust gas supply pipe; 2. air supply control valve; 3. exhaust gas filter box; 4. connecting pipe; 5. exhaust gas temporary storage tank; 6. heat storage bed 1; 7. heat storage bed 2; 8. connecting cavity; 9. combustion chamber; 10. gas detector; 11. purification and treatment air supply pipe; 12. air pressure detection sensor; 13. first air inlet pipe; 14. second air inlet pipe; 15. solenoid valve; 16. support frame; 17. first air return pipe; 18. second air return pipe; 19. first connecting end; 20. second connecting end; 21. detection air inlet pipe; 22. detection air outlet pipe.

[0020] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0022] like Figures 1 to 4As shown, the waste gas purification treatment equipment of the regenerative oxidation furnace includes a regenerative bed 1 6 and a regenerative bed 2 7, which are connected to both ends of a combustion chamber 9 through a connecting cavity 8, and a waste gas temporary storage tank 5 is arranged on the side of the regenerative bed 1 6 away from the combustion chamber 9, and the waste gas temporary storage tank 5 is connected to the waste gas filter box 3 through a connecting pipe 4, and the air inlet end of the waste gas filter box 3 is connected to the waste gas supply pipe 1, and the waste gas supply pipe 1 is installed with a gas supply control valve 2, and the air outlet end of the waste gas temporary storage tank 5 is provided with a purification valve 2. The purification air supply pipe 11 is provided with an air pressure detection sensor 12, the other end of the purification air supply pipe 11 is connected to the first air inlet pipe 13 and the second air inlet pipe 14 through a three-way joint, the other end of the first air inlet pipe 13 is connected to the first connecting end 19 of the heat storage bed 1 6, and the other end of the second air inlet pipe 14 is connected to the second connecting end 20 of the heat storage bed 2 7, so as to supply the exhaust gas in the exhaust gas temporary storage tank 5 into the heat storage bed 1 6 and the heat storage bed 2 7 respectively.

[0023] Among them, a gas detector 10 is arranged on the side of the exhaust gas temporary storage tank 5, a detection air inlet pipe 21 is arranged on one side of the gas detector 10, and a detection air outlet pipe 22 is arranged on the other side. The gas detector 10 is used to perform compliance detection on the gas purified by the thermal storage oxidation furnace to determine whether it meets the emission standards.

[0024] One end of the first air inlet pipe 13 close to the first connection end 19 is connected to the detection air inlet pipe 21 through the first air return pipe 17, and one end of the second air inlet pipe 14 close to the second connection end 20 is connected to the detection air inlet pipe 21 through the second air return pipe 18, so as to supply the treated gas to the gas detector 10.

[0025] The first air intake pipe 13, the second air intake pipe 14, the first air return pipe 17 and the second air return pipe 18 are all provided with electromagnetic valves 15 for controlling the connection and disconnection of the pipes.

[0026] A support frame 16 is arranged below the exhaust gas temporary storage tank 5, and heat storage bodies are arranged in the heat storage bed 1 6 and the heat storage bed 2 7. The heat storage bodies are made of honeycomb ceramic material and have good heat storage performance.

[0027] The working principle of the utility model is as follows: when the exhaust gas is purified, the exhaust gas is supplied to the exhaust gas filter box 3 through the exhaust gas supply pipe 1, and the exhaust gas filter box 3 can filter out impurities such as dust and solid particles in the exhaust gas. The filtered exhaust gas enters the exhaust gas temporary storage tank 5, and enters the heat storage bed 6 through the purification treatment air supply pipe 11 and the first air intake pipe 13. The high-temperature heat storage body in the heat storage bed 6 fully exchanges heat with the gas to preheat the gas. After that, the gas enters the combustion chamber 9 through the connecting cavity 8 for thermal oxidation, so that the gas in the combustion chamber 9 is fully burned, and the organic matter in the gas is converted into carbon dioxide and water. The purified gas pressure enters the heat storage bed 2 7 through the lower connecting chamber 8. The high-temperature purified gas exchanges heat with the low-temperature heat storage body in the heat storage bed 2 7, so that the gas is quickly cooled down, and the heat is also collected and reused. The gas passes through the second return air pipe 18 and enters the gas detector 10 for detection. The gas can be directly discharged if it meets the emission standards. When the exhaust gas contains other elements such as halogens, the oxidation product will contain hydrogen halide gas, which needs further purification before it can be discharged;

[0028] After working for a period of time, when the heat of the heat storage body in the heat storage bed 1 6 is basically released, or the heat storage body in the heat storage bed 2 7 has stored a lot of heat, the solenoid valve 15 on the first air inlet pipe 13 and the second air return pipe 18 is closed, and the solenoid valve 15 on the second air inlet pipe 14 and the first air return pipe 17 is opened. At this time, the exhaust gas in the exhaust gas temporary storage tank 5 enters the heat storage bed 2 7 through the purified air supply pipe 11 and the second air inlet pipe 14. The high-temperature heat storage body in the heat storage bed 2 7 fully exchanges heat with the gas to preheat the gas. After that, the gas enters the combustion chamber 9 through the connecting cavity 8 for Thermal oxidation makes the gas fully burn in the combustion chamber 9, and the organic matter in the gas is converted into carbon dioxide and water. The purified gas enters the heat storage bed 6 through the upper connecting cavity 8. The high-temperature purified gas exchanges heat with the low-temperature heat storage body in the heat storage bed 6, so that the gas is quickly cooled down, and the heat is also collected and reused. The gas passes through the first return pipe 17 and enters the gas detector 10 for detection. The gas can be directly discharged if it meets the emission standards. When the exhaust gas contains other elements such as halogens, the oxidation product will contain hydrogen halide gas, which needs further purification before discharge;

[0029] The novel structure of the present invention is reasonably designed and easy to install and use. The exhaust gas supply pipe 1 is first introduced into the exhaust gas filter box 3. The exhaust gas filter box 3 can effectively filter the dust and solid particles in the exhaust gas, reduce the impact of the dust and solid particles in the exhaust gas on the heat storage body in the heat storage bed, and effectively extend the service life of the heat storage body. The exhaust gas purification equipment is provided with an exhaust gas temporary storage tank 5 for temporarily storing exhaust gas. When the air pressure detection sensor 12 detects the high pressure setting air pressure in the purification treatment air supply pipe 11, the air supply control valve is closed 2, and the air intake is adjusted to ensure that the exhaust gas purification combustion is within a suitable air pressure range, thereby ensuring that the exhaust gas is fully burned in the combustion chamber and ensuring the exhaust gas purification effect.

[0030] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model has been disclosed as a preferred embodiment as above, it is not used to limit the utility model. Any technician familiar with this patent can make some changes or modify the technical content suggested above into an equivalent embodiment with equivalent changes without departing from the scope of the technical solution of the utility model. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of the solution of the utility model.

Claims

1. A regenerative thermal oxidation furnace exhaust gas purification treatment device, comprising a regenerative bed 1 (6) and a regenerative bed 2 (7), characterized in that: The heat storage bed 1 (6) and the heat storage bed 2 (7) are connected to both ends of the combustion chamber (9) via a connecting cavity (8); a waste gas temporary storage tank (5) is provided on a side of the heat storage bed 1 (6) away from the combustion chamber (9); the waste gas temporary storage tank (5) is connected to a waste gas filter box (3) via a connecting pipe (4); an exhaust gas supply pipe (1) is connected to the air inlet end of the waste gas filter box (3); a gas supply control valve (2) is installed on the exhaust gas supply pipe (1); and an exhaust gas outlet end of the waste gas temporary storage tank (5) is connected to the exhaust gas filter box (3). A purification air supply pipe (11) is provided, and an air pressure detection sensor (12) is installed on the purification air supply pipe (11). The other end of the purification air supply pipe (11) is connected to a first air intake pipe (13) and a second air intake pipe (14) via a three-way joint. The other end of the first air intake pipe (13) is connected to a first connection end (19) of the first thermal storage bed (6), and the other end of the second air intake pipe (14) is connected to a second connection end (20) of the second thermal storage bed (7).

2. The regenerative thermal oxidation furnace exhaust gas purification treatment equipment according to claim 1, characterized in that: A gas detector (10) is arranged on the side of the waste gas temporary storage tank (5); one side of the gas detector (10) is provided with a detection air inlet pipe (21), and the other side is provided with a detection air outlet pipe (22).

3. The regenerative thermal oxidation furnace exhaust gas purification treatment equipment according to claim 2, characterized in that: An end of the first air intake pipe (13) close to the first connection end (19) is connected to the detection air intake pipe (21) via a first air return pipe (17), and an end of the second air intake pipe (14) close to the second connection end (20) is connected to the detection air intake pipe (21) via a second air return pipe (18).

4. The regenerative thermal oxidation furnace exhaust gas purification treatment equipment according to claim 3, characterized in that: The first air intake pipe (13), the second air intake pipe (14), the first air return pipe (17) and the second air return pipe (18) are all provided with solenoid valves (15).

5. The regenerative thermal oxidation furnace exhaust gas purification treatment equipment according to claim 4, characterized in that: A support frame (16) is arranged below the exhaust gas temporary storage tank (5), and heat storage bodies are arranged inside the heat storage bed 1 (6) and the heat storage bed 2 (7), and the heat storage bodies are made of honeycomb ceramic material.

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