Dangerous solid waste incineration waste gas treatment equipment

Abstract

The utility model discloses hazardous solid waste incineration waste gas treatment equipment which comprises a combustion box and a purification box, and the combustion box is at least used for incinerating hazardous solid waste. A mounting frame is arranged in the combustion box, a waste gas combustion chamber is arranged on the mounting frame, the waste gas combustion chamber is located above dangerous fixed waste incineration, waste gas, collected by the backflow assembly, in the combustion box is conveyed into the waste gas combustion chamber, and waste gas subjected to secondary heating treatment through the waste gas combustion chamber enters the purification box through a gas conveying pipe; the device further comprises a gas supply unit and a combustible gas conveying device. The backflow assembly and the waste gas combustion chamber are adopted, the waste gas combustion chamber is located above the combustion pool, the waste gas combustion chamber can be heated through incineration of dangerous solid waste, meanwhile, the waste gas combustion chamber can conduct active heating, secondary heating treatment on waste gas is achieved, and small particles and floating objects which are not burnt thoroughly are effectively treated.

Description

Technical Field

[0001] The utility model relates to the technical field of hazardous solid waste incineration, in particular to hazardous solid waste incineration waste gas treatment equipment. Background Art

[0002] Generally, hazardous solid waste is treated by combustion. When solid waste is burned, smoke is generated, which contains a large amount of dioxins, toxic and harmful gases, small particles and floating matter.

[0003] Although current incinerators focus on the treatment of exhaust gas when burning solid waste, and are equipped with matching flue gas treatment equipment, general flue gas treatment equipment treats exhaust gas by deacidification, desulfurization, bag filtration, etc.

[0004] However, unburned small particles and floating debris are also discharged through the flue gas channel, affecting the combustion and waste gas treatment effect. At the same time, dioxins decompose into toxic gases and substances when discharged at different temperatures, which also greatly reduces the waste gas treatment effect. Therefore, it is urgent to design a hazardous solid waste incineration waste gas treatment equipment to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a hazardous solid waste incineration waste gas treatment device to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A hazardous solid waste incineration waste gas treatment device, comprising a combustion box and a purification box, a gas transmission pipe is provided between the combustion box and the purification box, a reflux component is provided on the top of the combustion box, and an exhaust pipe is provided on one side of the purification box;

[0008] The combustion box is at least used for incinerating hazardous fixed waste;

[0009] The combustion box is provided with a mounting frame inside, and an exhaust gas combustion chamber is provided on the mounting frame. The exhaust gas combustion chamber is located above the hazardous fixed waste incineration. The exhaust gas inside the combustion box collected by the reflux component is transported to the interior of the exhaust gas combustion chamber. The exhaust gas treated by secondary heating in the exhaust gas combustion chamber enters the purification box through the gas pipe;

[0010] It also includes an air supply unit and a combustible gas delivery device. The air supply unit provides air required for combustion to the interior of the exhaust gas combustion chamber and the combustion box; the combustible gas delivery device provides combustible gas to the exhaust gas combustion chamber.

[0011] Preferably, a combustion pool is provided below the interior of the combustion box, and an igniter is provided at the bottom of the combustion pool.

[0012] Preferably, an igniter is also provided on one side of the combustion chamber, and the igniter is at least used to ignite the combustible gas inside the combustion chamber.

[0013] Preferably, the purification box includes an outer shell, and a cooling box, a dry filter box, an activated carbon adsorption box and a spray box are sequentially arranged inside the outer shell. The exhaust gas transported by the combustion box from the gas pipe passes through the cooling box, the dry filter box, the activated carbon adsorption box and the spray box in sequence.

[0014] Preferably, the reflux assembly includes a collecting hood fixedly mounted above the combustion box, and the collecting hood is connected to the interior of the combustion box. A reflux pipe is fixedly provided on the top of the collecting hood, and one end of the reflux pipe is connected to the exhaust gas combustion chamber.

[0015] Preferably, the exhaust pipe is a vertical structure, a cap is provided at the top of the exhaust pipe, and a slag discharge port with a normally closed structure is provided at the bottom of the exhaust pipe.

[0016] Preferably, the air supply unit includes a blower fixedly mounted on the outer wall of one side of the combustion box, and a main pipe is provided on the blower, and air supply valve pipe 1 and air supply valve pipe 2 are installed at the end of the main pipe. There are several air supply valve pipes 1 and they are connected to the interior of the combustion box, and the air supply valve pipe 2 is connected to the interior of the exhaust gas combustion chamber.

[0017] Preferably, the exhaust gas combustion chamber and the return pipe are both hollow cylindrical structures, and the inner diameter of the exhaust gas combustion chamber is larger than the inner diameter of the return pipe.

[0018] In the above technical solution, the utility model provides a hazardous solid waste incineration waste gas treatment equipment, which has the following beneficial effects:

[0019] The reflux component and exhaust gas combustion chamber are located above the combustion pool. The exhaust gas combustion chamber can be heated by the incineration of hazardous solid waste. At the same time, the exhaust gas combustion chamber can also be actively heated to achieve secondary heating treatment of the exhaust gas, effectively dealing with small particles and floating objects that have not been completely burned.

[0020] The waste gas after being treated in the waste gas combustion chamber enters the purification box through the gas pipe. The cooling box in the purification box can cool the waste gas, ensuring that dioxins are discharged at a specific temperature and will not decompose into toxic gases and substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 This is a structural schematic diagram of an embodiment of a hazardous solid waste incineration waste gas treatment equipment provided by the present utility model.

[0023] Figure 2 This is a schematic diagram of the internal structure of a combustion box provided in an embodiment of a hazardous solid waste incineration waste gas treatment device of the present utility model.

[0024] Figure 3 Schematic diagram of the exhaust gas combustion chamber structure provided for an embodiment of the hazardous solid waste incineration exhaust gas treatment equipment of the utility model Figure 1 .

[0025] Figure 4 Schematic diagram of the exhaust gas combustion chamber structure provided for an embodiment of the hazardous solid waste incineration exhaust gas treatment equipment of the utility model Figure 2 .

[0026] Figure 5 This is a schematic diagram of the internal structure of a purification box provided in an embodiment of a hazardous solid waste incineration waste gas treatment device of the present utility model.

[0027] 1. Combustion box; 11. Combustion pool; 12. Ignitor; 13. Mounting frame; 2. Purification box; 21. Outer shell; 22. Cooling box; 23. Dry filter box; 24. Activated carbon adsorption box; 25. Spray box; 3. Reflux assembly; 31. Collection hood; 32. Reflux pipe; 4. Gas supply pipe; 5. Exhaust pipe; 6. Gas supply unit; 61. Blower; 62. Main pipe; 63. Gas supply valve pipe 1; 64. Gas supply valve pipe 2; 7. Combustible gas delivery device; 8. Waste gas combustion chamber. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-5As shown, an embodiment of the present invention provides a hazardous solid waste incineration waste gas treatment equipment, including a combustion box 1 and a purification box 2, an air supply pipe 4 is arranged between the combustion box 1 and the purification box 2, a reflux component 3 is arranged on the top of the combustion box 1, and an exhaust pipe 5 is arranged on one side of the purification box 2; the combustion box 1 is at least used for the incineration of hazardous fixed waste; a mounting bracket 13 is arranged inside the combustion box 1, and a waste gas combustion chamber 8 is arranged on the mounting bracket 13, the waste gas combustion chamber 8 is located above the incineration of hazardous fixed waste, the waste gas inside the combustion box 1 collected by the reflux component 3 is transported to the inside of the waste gas combustion chamber 8, and the waste gas treated by secondary heating in the waste gas combustion chamber 8 enters the purification box 2 through the air supply pipe 4; it also includes an air supply unit 6 and a combustible gas conveying device 7, the air supply unit 6 provides the air required for combustion to the waste gas combustion chamber 8 and the inside of the combustion box 1; the combustible gas conveying device 7 provides combustible gas to the waste gas combustion chamber 8.

[0030] In this embodiment, a combustion box 1 is included. The combustion box 1 is used at least for incinerating hazardous fixed waste. A normally closed sealing door panel is provided on the front of the combustion box 1 to ensure the sealing of the combustion box 1.

[0031] Specifically, a combustion pool 11 is provided at the bottom of the combustion box 1, and an igniter 12 is provided at the bottom of the combustion pool 11. Hazardous solid waste is placed inside the combustion pool 11 and ignited by the igniter 12 to achieve incineration of the hazardous solid waste.

[0032] In this embodiment, the purification box 2 is used to treat the waste gas after the incineration of hazardous solid waste;

[0033] Specifically, the purification box 2 includes a shell 21, and a cooling box 22, a dry filter box 23, an activated carbon adsorption box 24, and a spray box 25 are sequentially arranged inside the shell 21. The exhaust gas transported from the combustion box 1 by the gas pipe 4 passes through the cooling box 22, the dry filter box 23, the activated carbon adsorption box 24, and the spray box 25 in sequence;

[0034] The exhaust gas is cooled by the cooling box 22 to reduce the temperature to below 200 degrees Celsius and evaporate all the water as much as possible, which can effectively prevent the emergence of dioxin components;

[0035] The dry filter box 23 removes moisture, oil, dust and other substances from the exhaust gas;

[0036] The activated carbon adsorption box 24 can adsorb impurities in the exhaust gas;

[0037] The spray box 25 performs multi-stage washing treatment on the waste gas. For example, alkaline washing is a relatively common basic method, which can better promote the sufficient reaction between the acid gas and the alkaline solution, thereby better improving the deacidification efficiency.

[0038] In this embodiment, a gas pipe 4 is provided between the combustion box 1 and the purification box 2, and a reflux component 3 is provided on the top of the combustion box 1;

[0039] Specifically, the reflux assembly 3 includes a collecting hood 31 fixedly installed above the combustion box 1, and the collecting hood 31 is connected to the interior of the combustion box 1. A reflux pipe 32 is fixedly provided on the top of the collecting hood 31, and one end of the reflux pipe 32 is connected to the exhaust gas combustion chamber 8. The collecting hood 31 can be used to collect the exhaust gas inside the combustion box 1 and transport it to the exhaust gas combustion chamber 8 through the reflux pipe 32.

[0040] In this embodiment, an exhaust pipe 5 is provided on one side of the purification box 2;

[0041] Specifically, the exhaust pipe 5 is a vertical structure, and a cap is provided at the top of the exhaust pipe 5 to prevent outdoor water and impurities from entering the interior of the exhaust pipe 5. A normally closed slag discharge port is provided at the bottom of the exhaust pipe 5. In the exhaust gas discharge chamber, trace particulate matter contained in the exhaust gas falls under the action of gravity and can be taken out from the slag discharge port.

[0042] In this embodiment, a mounting frame 13 is provided inside the combustion box 1, and an exhaust gas combustion chamber 8 is provided on the mounting frame 13. The exhaust gas combustion chamber 8 is located above the incineration of hazardous fixed waste. The exhaust gas inside the combustion box 1 is collected by the reflux component 3 and transported to the interior of the exhaust gas combustion chamber 8. The exhaust gas treated by secondary heating in the exhaust gas combustion chamber 8 enters the purification box 2 through the gas pipe 4.

[0043] The exhaust gas combustion chamber 8 itself has the functions of gas transmission and combustion. At the same time, the exhaust gas combustion chamber 8 can also receive the heat energy from the incineration of hazardous solid waste below, realizing secondary heating of the exhaust gas inside the exhaust gas combustion chamber 8. The direct combustion temperature is generally around 1100°C. The final products of combustion are CO2, H20 and NOx, which can deeply treat the exhaust gas.

[0044] Specifically, an igniter 12 is also provided on one side of the combustion chamber 8, and the igniter 12 is at least used to ignite the combustible gas inside the combustion chamber 8;

[0045] Specifically, the exhaust gas combustion chamber 8 and the return pipe 32 are both hollow cylindrical structures. The inner diameter of the exhaust gas combustion chamber 8 is larger than the inner diameter of the return pipe 32, so that the exhaust gas in the return pipe 32 is evenly dispersed inside the exhaust gas combustion chamber 8, which is conducive to the full combustion treatment of the refluxed exhaust gas in the exhaust gas combustion chamber 8, thereby improving the effect of exhaust gas treatment.

[0046] In this embodiment, an air supply unit 6 and a combustible gas delivery device 7 are also included. The air supply unit 6 provides air required for combustion to the exhaust gas combustion chamber 8 and the interior of the combustion box 1; the combustible gas delivery device 7 provides combustible gas to the exhaust gas combustion chamber 8, and the combustible gas can be natural gas.

[0047] Specifically, the air supply unit 6 includes a blower 61 fixedly mounted on the outer wall of one side of the combustion box 1, and a main pipe 62 is provided on the blower 61. The end of the main pipe 62 is installed with a first air supply valve pipe 63 and a second air supply valve pipe 64. The first air supply valve pipe 63 is a plurality of pipes and is connected to the interior of the combustion box 1. The second air supply valve pipe 64 is connected to the interior of the exhaust gas combustion chamber 8.

[0048] When hazardous solid waste is incinerated, the blower 61 is started to provide air (oxygen) to the interior of the combustion pool 11 through the main pipe 62 and the air supply valve pipe 1 63, thereby ensuring that the hazardous solid waste is fully incinerated inside the combustion pool 11. When the exhaust gas is subjected to secondary combustion, the blower 61 is started to provide air (oxygen) to the interior of the exhaust gas combustion chamber 8 through the main pipe 62 and the air supply valve pipe 2 64, thereby realizing high-temperature combustion of the exhaust gas inside the exhaust gas combustion chamber 8.

[0049] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A hazardous solid waste incineration waste gas treatment device, comprising a combustion box (1) and a purification box (2), wherein a gas transmission pipe (4) is provided between the combustion box (1) and the purification box (2), a reflux component (3) is provided on the top of the combustion box (1), and an exhaust pipe (5) is provided on one side of the purification box (2); It is characterized by: The combustion box (1) is at least used for incinerating hazardous fixed waste; The combustion box (1) is provided with a mounting frame (13), and a waste gas combustion chamber (8) is provided on the mounting frame (13). The waste gas combustion chamber (8) is located above the hazardous fixed waste incineration area. The waste gas inside the combustion box (1) collected by the reflux component (3) is transported to the inside of the waste gas combustion chamber (8). The waste gas that has been subjected to secondary heating treatment in the waste gas combustion chamber (8) enters the purification box (2) through the gas transmission pipe (4); It also includes an air supply unit (6) and a combustible gas delivery device (7), wherein the air supply unit (6) provides air required for combustion to the interior of the exhaust gas combustion chamber (8) and the combustion box (1); and the combustible gas delivery device (7) provides combustible gas to the exhaust gas combustion chamber (8).

2. The hazardous solid waste incineration waste gas treatment equipment according to claim 1, characterized in that: A combustion pool (11) is provided at the lower portion of the combustion box (1), and an igniter (12) is provided at the bottom of the combustion pool (11).

3. The hazardous solid waste incineration waste gas treatment equipment according to claim 2, characterized in that: An igniter (12) is also provided on one side of the combustion chamber (8), and the igniter (12) is at least used for igniting the combustible gas inside the combustion chamber (8).

4. The hazardous solid waste incineration waste gas treatment equipment according to claim 1, characterized in that: The purification box (2) comprises an outer shell (21), wherein a cooling box (22), a dry filter box (23), an activated carbon adsorption box (24) and a spray box (25) are sequentially arranged inside the outer shell (21), and the exhaust gas transported from the combustion box (1) through the gas pipe (4) passes through the cooling box (22), the dry filter box (23), the activated carbon adsorption box (24) and the spray box (25) in sequence.

5. The hazardous solid waste incineration waste gas treatment equipment according to claim 1, characterized in that: The reflux assembly (3) comprises a collecting hood (31) fixedly mounted above the combustion box (1), and the collecting hood (31) is in communication with the interior of the combustion box (1). A reflux pipe (32) is fixedly arranged on the top of the collecting hood (31), and one end of the reflux pipe (32) is connected to the exhaust gas combustion chamber (8).

6. The hazardous solid waste incineration waste gas treatment equipment according to claim 1, characterized in that: The exhaust pipe (5) is a vertical structure, a cap is provided at the top of the exhaust pipe (5), and a slag discharge port with a normally closed structure is provided below the exhaust pipe (5).

7. The hazardous solid waste incineration waste gas treatment equipment according to claim 1, characterized in that: The air supply unit (6) includes a blower (61) fixedly mounted on an outer wall of one side of the combustion box (1), and a main pipe (62) is provided on the blower (61). An air supply valve pipe 1 (63) and an air supply valve pipe 2 (64) are installed at the end of the main pipe (62). The air supply valve pipe 1 (63) is in plurality and is communicated with the interior of the combustion box (1), and the air supply valve pipe 2 (64) is communicated with the interior of the exhaust gas combustion chamber (8).

8. The hazardous solid waste incineration waste gas treatment equipment according to claim 5, characterized in that: The exhaust gas combustion chamber (8) and the return pipe (32) are both hollow cylindrical structures, and the inner diameter of the exhaust gas combustion chamber (8) is larger than the inner diameter of the return pipe (32).

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