Organic waste gas heat accumulating type high-temperature combustion equipment

Abstract

The utility model relates to the technical field of waste gas treatment, and particularly discloses organic waste gas heat accumulating type high-temperature combustion equipment which comprises a combustion furnace, a filter box is arranged on one side of the combustion furnace, the other end of the filter box is communicated with an induced draft fan, the air outlet end of the induced draft fan is connected with a chimney, and a communicating pipe is installed between the upper end of the combustion furnace and the filter box. A waste gas inlet pipe on the lower portion of the combustion furnace is communicated with a waste gas source, waste gas enters the bottom of the combustion furnace, meanwhile, fuel gas is introduced through a fuel inlet pipe, the fuel gas is diffused through an annular gas pipe to make contact with the waste gas, and the mixing effect is improved; heat generated by combustion is adsorbed by the ceramic heat accumulator, waste gas introduced by the waste gas inlet pipe on the upper side is heated by the heat of the ceramic heat accumulator, then is combusted again by the high-temperature nozzle of the annular mounting seat on the upper side when moving upwards, and is discharged after being filtered by the filter box, so that the waste gas treatment effect and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a regenerative high-temperature combustion device for organic waste gas. Background Art

[0002] The treatment of organic waste gas refers to the treatment work of adsorbing, filtering and purifying the organic waste gas generated in the industrial production process. Usually, the treatment of organic waste gas includes the treatment of formaldehyde organic waste gas, benzene series organic waste gas such as benzene, toluene and xylene, acetone and butanone organic waste gas, ethyl acetate waste gas, oil mist organic waste gas, furfural organic waste gas, styrene, acrylic acid organic waste gas, resin organic waste gas, additive organic waste gas, paint mist organic waste gas, thinners organic waste gas and other air purification treatment methods of organic substances containing carbon, hydrogen and oxygen. When treating organic waste gas, the commonly used methods include the activated carbon adsorption treatment method, catalytic combustion method, catalytic oxidation method, acid-base neutralization method, plasma method and other principles. Among them, the principle of the regenerative oxidation furnace for treating organic waste gas is to oxidize the combustible waste gas into corresponding oxides and water at high temperature, so as to purify the waste gas. However, during the high-temperature treatment process, the combustion of organic waste gas is not sufficient, and the phenomenon that the waste gas is not completely treated may occur, increasing the risk of waste gas discharge. Content of the Utility Model

[0003] The purpose of the utility model is to provide a regenerative high-temperature combustion device for organic waste gas in order to solve the above problems.

[0004] The utility model realizes the above purpose through the following technical solutions:

[0005] A regenerative high-temperature combustion device for organic waste gas, including a combustion furnace, a filter box is arranged on one side of the combustion furnace, the other end of the filter box is communicated with an induced draft fan, the air outlet end of the induced draft fan is connected with a chimney, a connecting pipe is installed between the upper end of the combustion furnace and the filter box, three annular air pipes are arranged at intervals in the combustion furnace, air holes are uniformly distributed on the inner ring surface of the annular air pipes, a fuel inlet pipe is communicated with the lowermost annular air pipe, an exhaust gas inlet pipe is communicated with the upper annular air pipe, proportional control valves are installed on both the fuel inlet pipe and the exhaust gas inlet pipe, a ceramic regenerator is arranged between the annular air pipes communicated with the exhaust gas inlet pipe, annular mounting seats are arranged on the upper sides of the annular air pipes communicated with the exhaust gas inlet pipe, and high-temperature nozzles are uniformly distributed on the inner ring surface of the annular mounting seats.

[0006] Further setting: The interior of the filter box is provided with a spraying area and a filtering area. A spraying pipe is arranged at the top of the inner wall of the filter box in the spraying area. A partition plate is arranged between the spraying area and the filtering area. A water mist filter screen and an activated carbon adsorption screen are sequentially arranged at intervals on the side of the partition plate away from the connecting pipe. A circulation pipe is communicated with the spraying area on the rear wall of the filter box.

[0007] Further settings: The top of the combustion furnace is set to be conical, and the inner ring area of the annular mounting seat is smaller than the inner ring area of the annular gas pipe.

[0008] Further settings: The air intake volume of the exhaust gas inlet pipe on the upper side is smaller than that of the exhaust gas inlet pipe on the lower side.

[0009] Further settings: The ceramic regenerator is in a circular ring shape.

[0010] Further settings: The partition plate is welded to the filter box. The height of the partition plate is equal to half of the height of the filter box, and both ends of the filter box are in a conical shape.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] The exhaust gas source is connected to the lower exhaust gas inlet pipe of the combustion furnace, so that the exhaust gas enters the bottom of the combustion furnace through the annular gas pipe. At the same time, the fuel gas is introduced through the fuel inlet pipe, diffuses through the annular gas pipe and contacts the exhaust gas, improving the mixing effect. When flowing upward, it is ignited by the high-temperature nozzle on the annular mounting seat to burn the exhaust gas. The heat generated by the combustion is adsorbed by the ceramic regenerator. After the exhaust gas introduced into the upper exhaust gas inlet pipe is heated by the heat of the ceramic regenerator and then moves upward, it is burned again by the high-temperature nozzle on the upper annular mounting seat, and then is discharged after being filtered by the filter box, improving the treatment effect and efficiency of the exhaust gas. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0014] Figure 1 is an axonometric view of an organic waste gas regenerative high-temperature combustion device described in the present utility model;

[0015] Figure 2 is a schematic structural diagram of another perspective of an organic waste gas regenerative high-temperature combustion device described in the present utility model;

[0016] Figure 3 is a main sectional structural diagram of an organic waste gas regenerative high-temperature combustion device described in the present utility model;

[0017] Figure 4 is a half-sectional structural diagram of the combustion furnace of an organic waste gas regenerative high-temperature combustion device described in the present utility model;

[0018] Figure 5 is Figure 3Schematic enlarged view of part A.

[0019] Explanation of the reference numerals in the drawings is as follows:

[0020] 1. Combustion furnace; 11. Annular gas pipe; 12. Fuel inlet pipe; 13. Proportion control valve; 14. Ceramic regenerator; 15. Annular mounting seat; 16. High-temperature nozzle; 17. Exhaust gas inlet pipe; 2. Filter box; 21. Partition board; 22. Water mist filter screen; 23. Activated carbon adsorption net; 24. Spray pipe; 25. Circulation pipe; 3. Induced draft fan; 4. Chimney; 5. Connecting pipe. Detailed implementation manners

[0021] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0022] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0023] The present utility model will be further described below with reference to the drawings:

[0024] As Figures 1 - 5 shown, an organic waste gas regenerative high-temperature combustion device includes a combustion furnace 1. A filter box 2 is arranged on one side of the combustion furnace 1. The other end of the filter box 2 is communicated with an induced draft fan 3. The air outlet end of the induced draft fan 3 is connected to a chimney 4. A connecting pipe 5 is installed between the upper end of the combustion furnace 1 and the filter box 2. By the operation of the induced draft fan 3, the gas in the combustion furnace 1 flows upward through the connecting pipe 5 into the filter box 2, and then into the chimney 4 for discharge, forming a flowing effect on the gas.

[0025] In this embodiment: There are three annular gas pipes 11 arranged at intervals inside the combustion furnace 1. Air holes are evenly distributed on the inner ring surface of the annular gas pipes 11. A fuel inlet pipe 12 is connected to the lowermost annular gas pipe 11, and an exhaust gas inlet pipe 17 is connected to the upper annular gas pipe 11. Proportion control valves 13 are installed on both the fuel inlet pipe 12 and the exhaust gas inlet pipe 17. A ceramic regenerator 14 is arranged between the annular gas pipes 11 connected to the exhaust gas inlet pipe 17. Annular mounting seats 15 are arranged above the annular gas pipes 11 connected to the exhaust gas inlet pipe 17. High-temperature nozzles 16 are evenly distributed on the inner ring surface of the annular mounting seats 15; the top of the combustion furnace 1 is conical, and the inner ring area of the annular mounting seat 15 is smaller than the inner ring area of the annular gas pipe 11; the intake air volume of the upper exhaust gas inlet pipe 17 is smaller than that of the lower exhaust gas inlet pipe 17; the ceramic regenerator 14 is circular ring-shaped. The exhaust gas source is connected inside the lower exhaust gas inlet pipe 17, so that the exhaust gas enters the bottom of the combustion furnace 1 through the annular gas pipe 11. At the same time, gas is introduced through the fuel inlet pipe 12. After diffusing through the annular gas pipe 11 and contacting the exhaust gas, when flowing upward, it is ignited by the high-temperature nozzles 16 on the annular mounting seat 15, and the exhaust gas is burned to form carbon dioxide and water. The heat generated by the combustion is adsorbed by the ceramic regenerator 14. At the same time, the upper exhaust gas inlet pipe 17 introduces exhaust gas. After being heated by the heat of the ceramic regenerator 14, when moving upward, it is burned again by the high-temperature nozzles 16 on the upper annular mounting seat 15.

[0026] In this embodiment: A spraying area and a filtering area are arranged inside the filtering box 2. A spraying pipe 24 is arranged at the top of the inner wall of the filtering box 2 in the spraying area. A partition plate 21 is arranged between the spraying area and the filtering area. A water mist filter screen 22 and an activated carbon adsorption screen 23 are arranged at intervals in sequence on the side of the partition plate 21 away from the connecting pipe 5. A circulating pipe 25 is connected to the rear wall of the filtering box 2 and communicates with the spraying area; the partition plate 21 is welded to the filtering box 2, and the height of the partition plate 21 is equal to half of the height of the filtering box 2. Both ends of the filtering box 2 are conical, so that the burned exhaust gas enters the filtering box 2 through the connecting pipe 5. The liquid sprayed by the spraying pipe 24 dusts and cools the passing gas, and then the water mist is filtered by the water mist filter screen 22, and the remaining exhaust gas is filtered and adsorbed by the activated carbon adsorption screen 23.

[0027] Working principle and usage process of the utility model: Start the induced draft fan 3, so that the gas in the combustion furnace 1 flows upward through the connecting pipe 5 into the filter box 2, and then enters the chimney 4 and is discharged, forming a flow of gas. Connect the waste gas source through the lower waste gas inlet pipe 17, so that the waste gas enters the bottom of the combustion furnace 1 through the annular gas pipe 11. At the same time, introduce gas through the fuel inlet pipe 12. After diffusing through the annular gas pipe 11 and contacting the waste gas, when flowing upward, it is ignited by the high-temperature nozzle 16 on the annular mounting seat 15, and the waste gas is burned to form carbon dioxide and water. The heat generated by the combustion is adsorbed by the ceramic heat storage body 14. At the same time, waste gas is introduced through the upper waste gas inlet pipe 17. After being heated by the heat of the ceramic heat storage body 14, when moving upward, it is burned again by the high-temperature nozzle 16 on the upper annular mounting seat 15. The burned gas enters the filter box 2 through the connecting pipe 5. The liquid sprayed by the spray pipe 24 dusts and cools the passing gas, and then passes through the water mist filter screen 22 to filter the water mist, and the activated carbon adsorption net 23 filters and adsorbs the remaining waste gas and then discharges it.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed.

Claims

1. A regenerative high-temperature combustion device for organic waste gas, comprising a combustion furnace (1), a filter box (2) is arranged on one side of the combustion furnace (1), the other end of the filter box (2) is communicated with an induced draft fan (3), the air outlet end of the induced draft fan (3) is connected with a chimney (4), and a connecting pipe (5) is installed between the upper end of the combustion furnace (1) and the filter box (2), and it is characterized in that: There are three annular gas pipes (11) arranged at intervals inside the combustion furnace (1). The inner ring surfaces of the annular gas pipes (11) are evenly distributed with air holes. A fuel inlet pipe (12) is connected to the lowermost annular gas pipe (11). An exhaust gas inlet pipe (17) is connected to the upper annular gas pipe (11). Proportion control valves (13) are installed on both the fuel inlet pipe (12) and the exhaust gas inlet pipe (17). A ceramic heat storage body (14) is arranged between the annular gas pipes (11) connected to the exhaust gas inlet pipe (17). Annular mounting seats (15) are arranged above the annular gas pipes (11) connected to the exhaust gas inlet pipe (17). High-temperature nozzles (16) are evenly distributed on the inner ring surfaces of the annular mounting seats (15).

2. The regenerative high-temperature combustion equipment for organic waste gas according to claim 1, characterized in that: A spraying area and a filtering area are arranged inside the filtering box (2). A spraying pipe (24) is arranged at the top of the inner wall of the filtering box (2) in the spraying area. A partition plate (21) is arranged between the spraying area and the filtering area. A water mist filter screen (22) and an activated carbon adsorption screen (23) are arranged at intervals in sequence on the side of the partition plate (21) away from the connecting pipe (5). A circulating pipe (25) is connected to the rear wall of the filtering box (2) and communicates with the spraying area.

3. The regenerative high-temperature combustion equipment for organic waste gas according to claim 1, characterized in that: The top of the combustion furnace (1) is conical. The inner ring area of the annular mounting seat (15) is smaller than the inner ring area of the annular gas pipe (11).

4. An organic waste gas regenerative high-temperature combustion device according to claim 1, characterized in that: The air intake of the upper exhaust gas inlet pipe (17) is less than that of the lower exhaust gas inlet pipe (17).

5. An organic waste gas regenerative high-temperature combustion device according to claim 1, characterized in that: The ceramic heat storage body (14) is circular ring-shaped.

6. The regenerative high-temperature combustion equipment for organic waste gas according to claim 2, characterized in that: The partition plate (21) is welded to the filtering box (2). The height of the partition plate (21) is equal to half of the height of the filtering box (2). Both ends of the filtering box (2) are conical-shaped.

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