Coke oven gas blending combustion device

Abstract

The utility model relates to the technical field of gas blending combustion equipment, and particularly discloses a coke oven gas blending combustion device which comprises an input pipe and a combustor, the bottom of the input pipe is connected with a mixing pipe, and the bottom of the mixing pipe is connected with a gas inlet end of the combustor through a gas supply pipe; one side of the input pipe is connected with an air feeding pipe, the top of the input pipe is connected with a cover plate, the bottom of the cover plate is connected with a central pipe arranged in the input pipe, a filter cartridge is arranged in the central pipe, the top of the cover plate is provided with a coal gas feeding pipe communicated with an inner cavity of the filter cartridge, and a gas outlet cavity is arranged between the filter cartridge and the central pipe; after being input from the gas feeding pipe, the coke oven gas can be output after being filtered in the filter cartridge, and the spiral cleaning piece can continuously clean impurities accumulated on the inner wall of the filter cartridge into the collecting box, so that the subsequent cleaning is facilitated, and the influence on the input of the coke oven gas is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal gas blending and burning equipment, in particular to a coke oven coal gas blending and burning device. Background Art

[0002] In order to improve the utilization rate of waste gas from coal tar refining, coal gas is blended and burned. Coke oven gas can be blended with other coal gases. When the coke oven gas is burned, it contains more impurities, which affect the blending of coal gas.

[0003] A coke oven gas mixer disclosed in the existing patent announcement number CN205412706U includes a cylindrical mixer body, the upper end of the mixer body is sealed and connected to a gas feed pipe that vertically penetrates into the mixer body, the lower end of the gas feed pipe is connected to a gas filter cartridge, a gas filter plate is installed in the gas filter cartridge, a plurality of air outlet holes are arranged at intervals on the side wall of the gas filter cartridge, the side of the mixer body is connected to an air feed pipe, the coke oven gas entering from the gas feed pipe is filtered through the gas filter plate, and then is evenly mixed with the fresh air entering from the air feed pipe inside the mixer body, and the mixed gas is output through the lower end of the mixer body; the gas filter cartridge can remove impurities and clean the incoming coke oven gas, making the gas finer, increasing the contact area with the fresh air, improving the uniformity of mixing, and the gas discharged after mixing burns more fully.

[0004] The above coke oven gas mixer can mix coke oven gas and air, and can mix the input coke oven gas during mixing. However, the gas filter plate is set in a single layer, which is difficult to clean after being blocked for a long time, affecting the input of coke oven gas. In addition, air input is easy to hinder the coke oven gas output by the gas filter cartridge, and needs to be improved. In view of the above problems, a coke oven gas blending device is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a coke oven gas blending device to solve the problems raised in the above background technology.

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

[0007] A coke oven gas blending device comprises an input pipe and a burner, wherein the bottom of the input pipe is connected to a mixing pipe, and the bottom of the mixing pipe is connected to an air inlet end of the burner through an air delivery pipe;

[0008] One side of the input pipe is connected to the air supply pipe, the top of the input pipe is connected to the cover plate, the bottom of the cover plate is connected to a central pipe placed in the input pipe, a filter cartridge is installed in the central pipe, a gas supply pipe connected to the inner cavity of the filter cartridge is installed on the top of the cover plate, and an air outlet cavity is provided between the filter cartridge and the central pipe;

[0009] The bottom of the filter cartridge is threadedly connected to the collection box, and a spiral cleaning member for cleaning the inner wall of the filter cartridge is installed in the filter cartridge;

[0010] The mixing tube is provided with a swirl mixing element for mixing air and coke oven gas.

[0011] In an optional solution: the bottom of the cover plate is connected to a fixing cylinder, the fixing cylinder is communicated with a gas supply pipe, and the bottom of the fixing cylinder is connected to a filter cylinder via bolts.

[0012] In an optional solution: the spiral cleaning component includes a rotating rod arranged in the filter cartridge, the rotating rod is rotatably connected to the bottom of the cover plate, a motor for driving the rotating rod to rotate is installed on the top of the cover plate, a spiral paddle that cooperates with the inner wall of the filter cartridge is installed on the rotating rod, the spiral outer wall of the spiral paddle is connected to a cleaning brush, and the cleaning brush is in contact with the inner wall of the filter cartridge.

[0013] In an optional solution: a threaded ring for connecting to a collection box is provided at the bottom of the filter cartridge, and a threaded interface cooperating with the threaded ring is provided at the top opening of the collection box.

[0014] In an optional solution: an opening is provided at the bottom of the central tube, and the inner cavity of the central tube is connected with the inner cavity of the input tube.

[0015] In an optional solution: the swirl mixer includes a central block and a plurality of swirl sheets connected to the central block, the swirl sheets are arranged obliquely, and the central block is provided with a plurality of through holes.

[0016] In an optional solution: a plurality of the swirl blades are arranged in a circular array.

[0017] In an optional solution: one side of the input tube is connected to the incorporation tube.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] After the coke oven gas is input from the gas inlet pipe, it can be filtered in the filter cylinder and then output, and the spiral cleaning part can continuously clean the impurities accumulated on the inner wall of the filter cylinder into the collection box, which is convenient for subsequent cleaning and reduces the impact on the coke oven gas input;

[0020] In the utility model, air can be input from the air inlet pipe, and coke oven gas can be input from the gas inlet pipe into the filter cartridge for filtering and then output from the outlet pipe of the central pipe. The arrangement of the central pipe reduces the influence of air input on coke oven gas input, and then the swirl mixer can further mix the air and coke oven gas, and then the mixed gas can be sent to the burner for mixing and burning;

[0021] The input pipe of the utility model can be connected to other gas input pipelines, and multiple gases can be mixed according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 It is a schematic diagram of the structure inside the input tube of the utility model.

[0024] Figure 3 It is a schematic diagram of the structure inside the central tube of the utility model.

[0025] Figure 4 It is a schematic diagram of the structure inside the mixing tube in the utility model.

[0026] In the figure: 11, burner; 12, air supply pipe; 13, mixing pipe; 14, input pipe; 15, air supply pipe; 16, cover plate; 17, center pipe; 18, gas supply pipe; 19, motor; 20, filter cartridge; 21, rotating rod; 22, spiral paddle; 23, collecting box; 24, center block; 25, through hole; 26, swirl sheet; 27, mixing pipe. DETAILED DESCRIPTION

[0027] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-Figure 4 In this embodiment, a coke oven gas blending device includes an input pipe 14 and a burner 11. The bottom of the input pipe 14 is connected to a mixing pipe 13. The bottom of the mixing pipe 13 is connected to the air inlet end of the burner 11 through an air delivery pipe 12. The burner 11 can be an existing combustion device that can ignite and spray gas.

[0030] One side of the input pipe 14 is connected to an air supply pipe 15, the top of the input pipe 14 is connected to a cover plate 16, the bottom of the cover plate 16 is connected to a central pipe 17 placed in the input pipe 14, a filter cartridge 20 is installed in the central pipe 17, a gas supply pipe 18 connected to the inner cavity of the filter cartridge 20 is installed on the top of the cover plate 16, and an air outlet cavity is provided between the filter cartridge 20 and the central pipe 17;

[0031] The air supply pipe 15 can be used to supply air for subsequent combustion support, and the coke oven gas can be supplied from the gas supply pipe 18;

[0032] The bottom of the filter cartridge 20 is threadedly connected to the collection box 23, and a spiral cleaning member for cleaning the inner wall of the filter cartridge 20 is installed in the filter cartridge 20; the coke oven gas can be filtered in the filter cartridge 20, and the spiral cleaning member can clean the inner wall of the filter cartridge 20, and then collect it in the collection box 23, which is convenient for subsequent cleaning;

[0033] The mixing tube 13 is provided with a cyclone mixer for mixing air and coke oven gas;

[0034] In this embodiment, air is input through the air supply pipe 15, and coke oven gas is input through the coal gas supply pipe 18. The coke oven gas can be filtered in the filter cartridge 20, and the spiral cleaning element can clean the inner wall of the filter cartridge 20, and then the coke oven gas is collected in the collecting box 23. The coke oven gas is output from the air outlet cavity and contacts the air. Then the coke oven gas and air are further mixed after passing through the cyclone mixing element, and then are sent to the burner 11 through the air supply pipe 12 for mixing and combustion.

[0035] In another embodiment, the bottom of the cover plate 16 is connected to a fixing cylinder, the fixing cylinder is communicated with the gas supply pipe 18, and the bottom of the fixing cylinder is connected to the filter cylinder 20 by bolts.

[0036] In another embodiment, the spiral cleaning member includes a rotating rod 21 disposed in the filter cartridge 20, the rotating rod 21 is rotatably connected to the bottom of the cover plate 16, a motor 19 for driving the rotating rod 21 to rotate is installed on the top of the cover plate 16, and a spiral paddle 22 matched with the inner wall of the filter cartridge 20 is installed on the rotating rod 21; the spiral outer wall of the spiral paddle 22 is connected to a cleaning brush, and the cleaning brush contacts the inner wall of the filter cartridge 20;

[0037] The motor 19 works to drive the rotating rod 21 to rotate, the spiral paddle 22 can rotate, and the cleaning brush can contact the inner wall of the filter cartridge 20 to clean the impurities connected to the inner wall of the filter cartridge 20. At the same time, when the coke oven gas is filtered in the filter cartridge 20, part of the coke oven gas can also flow along the spiral paddle 22 and be filtered and output from different positions of the filter cartridge 20.

[0038] In another embodiment, a threaded ring for connecting to the collection box 23 is provided at the bottom of the filter cartridge 20, and a threaded interface for matching with the threaded ring is provided at the top opening of the collection box 23;

[0039] The collecting box 23 can collect the impurities cleaned by the cleaning brush, and the collecting box 23 can be easily disassembled and cleaned later.

[0040] In another embodiment, an opening is provided at the bottom of the central tube 17, and the inner cavity of the central tube 17 is connected to the inner cavity of the input tube 14; the coke oven gas is output from the bottom opening of the central tube 17, and the setting of the bottom opening also facilitates the subsequent disassembly and removal of the collection box 23.

[0041] In another embodiment, the swirl mixer includes a central block 24 and a plurality of swirl sheets 26 connected to the central block 24, the swirl sheets 26 are arranged obliquely, and a plurality of through holes 25 are provided on the central block 24;

[0042] The coke oven gas and air can be mixed through the chamber between the swirl plates 26 and the through holes 25 on the central block 24, thereby improving the subsequent combustion completeness.

[0043] In another embodiment, a plurality of swirl blades 26 are arranged in a circular array.

[0044] In another embodiment, one side of the input pipe 14 is connected to a doping pipe 27 for inputting other coal gas, and the position and number of the doping pipe 27 can be set according to demand.

[0045] When the utility model is used, air is inputted through the air supply pipe 15, and coke oven gas is supplied through the gas supply pipe 18. The coke oven gas can be filtered in the filter cartridge 20. The motor 19 works to drive the rotating rod 21 to rotate, and the spiral paddle 22 can rotate. The cleaning brush can contact the inner wall of the filter cartridge 20 to clean the impurities connected to the inner wall of the filter cartridge 20. At the same time, when the coke oven gas is filtered in the filter cartridge 20, part of the coke oven gas can also flow along the spiral paddle 22 and be filtered and output from different positions of the filter cartridge 20. Then the impurities are collected in the collecting box 23, and the coke oven gas is output from the air outlet cavity and contacts with the air. Then the coke oven gas and the air are further mixed after passing through the cyclone mixer and are supplied to the burner 11 through the air supply pipe 12 for mixing and combustion.

[0046] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A coke oven gas blending device, comprising an input pipe (14) and a burner (11), wherein the bottom of the input pipe (14) is connected to a mixing pipe (13), and the bottom of the mixing pipe (13) is connected to an air inlet end of the burner (11) through an air delivery pipe (12); Features: One side of the input pipe (14) is connected to an air supply pipe (15), the top of the input pipe (14) is connected to a cover plate (16), the bottom of the cover plate (16) is connected to a central pipe (17) placed in the input pipe (14), a filter cartridge (20) is installed in the central pipe (17), a gas supply pipe (18) communicating with the inner cavity of the filter cartridge (20) is installed on the top of the cover plate (16), and an air outlet cavity is provided between the filter cartridge (20) and the central pipe (17); The bottom of the filter cartridge (20) is threadedly connected to the collecting box (23), and a spiral cleaning member for cleaning the inner wall of the filter cartridge (20) is installed in the filter cartridge (20); The mixing tube (13) is provided with a cyclone mixing element for mixing air and coke oven gas.

2. A coke oven gas blending device according to claim 1, characterized in that: The bottom of the cover plate (16) is connected to a fixing cylinder, the fixing cylinder is in communication with a gas supply pipe (18), and the bottom of the fixing cylinder is connected to a filter cylinder (20) via bolts.

3. The coke oven gas blending device according to claim 1, characterized in that: The spiral cleaning member comprises a rotating rod (21) arranged in the filter cartridge (20); the rotating rod (21) is rotatably connected to the bottom of the cover plate (16); a motor (19) for driving the rotating rod (21) to rotate is installed on the top of the cover plate (16); a spiral paddle (22) matched with the inner wall of the filter cartridge (20) is installed on the rotating rod (21); the spiral outer wall of the spiral paddle (22) is connected to a cleaning brush, and the cleaning brush is in contact with the inner wall of the filter cartridge (20).

4. The coke oven gas blending device according to claim 1, characterized in that: The bottom of the filter cartridge (20) is provided with a threaded ring for connecting to a collection box (23), and the top opening of the collection box (23) is provided with a threaded interface that cooperates with the threaded ring.

5. The coke oven gas blending device according to claim 1, characterized in that: The bottom of the central tube (17) is provided with an opening, and the inner cavity of the central tube (17) is in communication with the inner cavity of the input tube (14).

6. The coke oven gas blending device according to claim 1, characterized in that: The swirl mixer comprises a central block (24) and a plurality of swirl sheets (26) connected to the central block (24); the swirl sheets (26) are arranged in an inclined manner; and a plurality of through holes (25) are provided on the central block (24).

7. A coke oven gas blending device according to claim 6, characterized in that: A plurality of swirl plates (26) are arranged in a circular array.

8. The coke oven gas blending device according to claim 1, characterized in that: One side of the input pipe (14) is connected to the incorporation pipe (27).

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