Coal water slurry gasification burner

Abstract

The utility model relates to the technical field of coal water slurry gasification and discloses a coal water slurry gasification burner, which comprises a plurality of pipes and a plurality of nozzles, and flow guide mechanisms are arranged on the plurality of pipes and the plurality of nozzles; under the action of a plurality of sealing pads, the outer coal pipe and the plurality of outer gas pipes are respectively sealed and connected to the inner coal pipe and the plurality of inner gas pipes, so that the coal and the gas are respectively transmitted to the front end of the nozzle through the pipes, the outer coal pipe, the plurality of outer gas pipes, the inner coal pipe and the plurality of inner gas pipes, thereby realizing the combined installation of the burner and ensuring the efficient ejection of the coal, the outer coal pipe, the plurality of outer gas pipes, the inner coal pipe and the plurality of inner gas pipes are separated from each other through cutting welding rings, the burner is convenient to maintain, and when the burner is used, the welding plate can be detachably connected, and only the welding plate arc that conforms to the burner can be customized.

Description

Technical Field

[0001] This utility model relates to the field of coal-water slurry gasification technology, specifically to a coal-water slurry gasification burner. Background Technology

[0002] The coal-water slurry gasification burner is the core equipment of the pressurized coal-water slurry gasification technology. It is responsible for mixing and atomizing the coal-water slurry with oxygen and then injecting it into the combustion chamber of the gasifier to achieve a highly efficient gasification reaction. Its performance directly affects the operational stability, energy consumption, and syngas quality of the gasifier. It is widely used in coal-to-ammonia, methanol, and hydrogen production, and can co-process high-sulfur petroleum coke or organic waste.

[0003] Chinese patent provides a water-suitable coal slurry gasification burner, publication number CN223226025U, which includes a gasification burner body. The gasification burner body is provided with a metal protective cover. The metal protective cover includes a fixed protective part disposed on the outer circumference of the gasification burner body and an end face protective part disposed on the end face of the gasification burner body. The fixed protective part and the end face protective part are an integral structure. A through hole for material to be ejected from the gasification burner body is opened at the center of the end face protective part. A high-temperature resistant metal coating is fixedly disposed on the outer circumferential surface of the fixed protective part. It has the characteristics of effectively protecting the gasification burner body and improving its service life.

[0004] The aforementioned burner has the effect of fixing and protecting the main body, but due to the integrated structural design of the burner, the maintenance of the burner is relatively difficult. If the burner is damaged, it can only be replaced, which greatly increases the cost of using the burner. At the same time, the burner has low compatibility and needs to be customized according to the specifications of the furnace. Therefore, a water-coal slurry gasification burner is needed. Utility Model Content

[0005] The purpose of this invention is to provide a coal-water slurry gasification burner to solve the problems of difficult maintenance and low adaptability of existing burners.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a coal-water slurry gasification burner, comprising a plurality of conduits and a plurality of nozzles, wherein a flow guiding mechanism is provided on the plurality of conduits and the plurality of nozzles; the flow guiding mechanism comprises an outer coal pipe, a plurality of outer gas pipes, an inner coal pipe, and a plurality of inner gas pipes, wherein the outer coal pipes and the plurality of outer gas pipes are fixedly installed on the conduits, and six nozzles are fixedly installed at one end of each of the plurality of inner gas pipes; a plurality of welding rings are fixedly installed at one end of each of the outer coal pipes, the plurality of outer gas pipes, the inner coal pipes, and the plurality of inner gas pipes, and two sealing gaskets are fixedly installed at one end of each of the outer coal pipes, the plurality of outer gas pipes, the inner coal pipes, and the plurality of inner gas pipes.

[0007] Preferably, the external air pipes and the internal air pipes are all composed of annular pipes, and the six nozzles are fixedly installed on the internal air pipes at equal intervals.

[0008] Preferably, the distance between the outer gas pipe and the outer coal pipe, as well as between adjacent outer gas pipes, is the same, and the distance between the inner gas pipe and the inner coal pipe, as well as between adjacent inner gas pipes, is the same.

[0009] Preferably, the centers of the outer coal pipe, the plurality of outer gas pipes, the inner coal pipe and the plurality of inner gas pipes are all located on the same straight line, and the sealing gaskets on both sides are opposite to each other.

[0010] Preferably, a fixing mechanism is provided between the outer coal pipe, the plurality of outer gas pipes, the inner coal pipe, and the plurality of inner gas pipes. The fixing mechanism includes two reinforcing flanges, which are respectively fixedly installed at one end of the outer gas pipe and the inner gas pipe. A plurality of reinforcing bolts are fixedly installed through the two reinforcing flanges. A connecting flange is fixedly installed in the middle of the outer gas pipe. A plurality of connecting bolts are fixedly installed on the connecting flange. A welding plate is fixedly installed on the plurality of connecting bolts.

[0011] Preferably, the reinforcing flanges are fixedly installed on the outermost outer air pipe and the inner air pipe, respectively, and the outer air pipe and the inner air pipe are respectively protruding and installed on one side of the two reinforcing flanges.

[0012] Preferably, the connecting flange is glued to the welding plate, and the inner side of the welding plate is curved.

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

[0014] 1) This coal-water slurry gasification burner, under the action of several sealing gaskets, controls the sealing connection between the outer coal pipe and several outer gas pipes with the inner coal pipe and several inner gas pipes respectively, ensuring spatial communication between the outer coal pipe and several outer gas pipes with the inner coal pipe and several inner gas pipes respectively. Benefiting from the shape of the outer coal pipe, several outer gas pipes, inner coal pipe and several inner gas pipes, the coal and gas are respectively transmitted to the front end of the nozzle through the conduit, outer coal pipe, several outer gas pipes, inner coal pipe and several inner gas pipes, thereby realizing the combined installation of the burner, while ensuring efficient coal ejection.

[0015] 2) This coal-water slurry gasification burner separates the outer coal pipe, several outer gas pipes, inner coal pipe, and several inner gas pipes by cutting the welding ring, which facilitates the maintenance of the burner. The outer gas pipes and inner gas pipes are connected by reinforcing flanges and reinforcing bolts. The burner is connected to the coal-water slurry gasification tank by connecting flanges and welding plates. Thanks to the detachable connection of the welding plates, only the curvature of the welding plates that conforms to the tank needs to be customized when using it. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of a coal-water slurry gasification burner according to an embodiment of the present invention.

[0017] Figure 2 This is a cross-sectional view of the burner in an embodiment of this utility model;

[0018] Figure 3 This is a three-dimensional structural exploded view of the flow guiding mechanism in the embodiment of this utility model;

[0019] Figure 4 This is a cross-sectional view of the external and internal trachea in an embodiment of the present invention.

[0020] Figure 5 This is a three-dimensional structural exploded view of the fixing mechanism in an embodiment of this utility model.

[0021] In the diagram: 1. Conduit; 2. Nozzle; 3. Flow guiding mechanism; 301. Outer coal pipe; 302. Outer gas pipe; 303. Inner coal pipe; 304. Inner gas pipe; 305. Welding ring; 306. Sealing gasket; 4. Fixing mechanism; 401. Reinforcing flange; 402. Reinforcing bolt; 403. Connecting flange; 404. Connecting bolt; 405. Welding plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1

[0024] Combination Figures 1-4 A coal-water slurry gasification burner includes several conduits 1 and several nozzles 2, with a flow guiding mechanism 3 provided on the conduits 1 and nozzles 2. The flow guiding mechanism 3 includes an outer coal pipe 301, several outer gas pipes 302, an inner coal pipe 303, and several inner gas pipes 304. The outer coal pipes 301 and several outer gas pipes 302 are fixedly installed on the conduits 1. Six nozzles 2 are fixedly installed at one end of each of the several inner gas pipes 304. Several welding rings 305 are fixedly installed at one end of each of the outer coal pipes 301, several outer gas pipes 302, inner coal pipes 303, and several inner gas pipes 304. Two sealing gaskets 306 are fixedly installed at one end of each of the outer coal pipes 301, several outer gas pipes 302, inner coal pipes 303, and several inner gas pipes 304.

[0025] Several external gas pipes 302 and several internal gas pipes 304 are composed of annular pipes. Six nozzles 2 are fixedly installed at equal intervals on the internal gas pipes 304, so that the gas can be evenly sprayed out and concentrated on the coal sprayed out by the internal coal pipes 303. The distance between the external gas pipes 302 and the external coal pipes 301 and the adjacent external gas pipes 302 is consistent. The distance between the internal gas pipes 304 and the internal coal pipes 303 and the adjacent internal gas pipes 304 is consistent. The centers of the external coal pipes 301, several external gas pipes 302, internal coal pipes 303 and several internal gas pipes 304 are all located on the same straight line. The sealing gaskets 306 on both sides are opposite to each other, so that the external coal pipes 301 and several external gas pipes 302 can be connected to the internal coal pipes 303 and several internal gas pipes 304 respectively, and ensure the sealing effect of the burner.

[0026] Example 2

[0027] See Figure 5 A fixing mechanism 4 is provided between the outer coal pipe 301, several outer gas pipes 302, inner coal pipes 303 and several inner gas pipes 304. The fixing mechanism 4 includes two reinforcing flanges 401, which are respectively fixedly installed at one end of the outer gas pipe 302 and the inner gas pipe 304. Several reinforcing bolts 402 are fixedly installed through the two reinforcing flanges 401. A connecting flange 403 is fixedly installed in the middle of the outer gas pipe 302. Several connecting bolts 404 are fixedly installed on the connecting flange 403. A welding plate 405 is fixedly installed on the several connecting bolts 404.

[0028] The reinforcing flanges 401 are fixedly installed on the outermost outer gas pipe 302 and inner gas pipe 304 respectively. The outer gas pipe 302 and inner gas pipe 304 are respectively protruding and installed on one side of the two reinforcing flanges 401, ensuring that the outer gas pipe 302 and inner gas pipe 304 are clamped when the reinforcing bolts 402 are tightened to the reinforcing flanges 401. The connecting flange 403 is glued to the welding plate 405. The inner side of the welding plate 405 is curved. Under the premise of ensuring the sealing between the connecting flange 403 and the welding plate 405, the welding plate 405 is adapted to the installation of the cauldron. In use, it is only necessary to customize the curvature of the welding plate 405 to match the cauldron.

[0029] In actual operation, under the action of several sealing gaskets 306, the outer coal pipe 301 and several outer gas pipes 302 are controlled to be sealed and connected with the inner coal pipe 303 and several inner gas pipes 304 respectively, ensuring that the outer coal pipe 301 and several outer gas pipes 302 are spatially connected with the inner coal pipe 303 and several inner gas pipes 304 respectively. Benefiting from the shape of the outer coal pipe 301, several outer gas pipes 302, inner coal pipe 303 and several inner gas pipes 304, the coal and gas are respectively transmitted to the front end of the nozzle 2 through the conduit 1, the outer coal pipe 301, several outer gas pipes 302, inner coal pipe 303 and several inner gas pipes 304, thereby realizing the combined installation of the burner and ensuring the efficient ejection of coal.

[0030] The outer coal pipe 301 and several outer gas pipes 302, the inner coal pipe 303 and several inner gas pipes 304 are welded together by a welding ring 305. During use, the outer coal pipe 301, several outer gas pipes 302, inner coal pipes 303 and several inner gas pipes 304 can be separated by cutting the welding ring 305, which facilitates the maintenance of the burner. The outer gas pipes 302 and inner gas pipes 304 are connected by a reinforcing flange 401 and a reinforcing bolt 402. The burner is connected to the coal-water slurry gasification tank by a connecting flange 403 and a welding plate 405. Thanks to the detachable connection of the welding plate 405, only the curvature of the welding plate 405 that conforms to the tank needs to be customized during use.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coal-water slurry gasification burner, comprising a plurality of conduits (1) and a plurality of nozzles (2), characterized in that: A flow guiding mechanism (3) is provided on several of the aforementioned conduits (1) and several nozzles (2); The flow guiding mechanism (3) includes an outer coal pipe (301), a plurality of outer gas pipes (302), an inner coal pipe (303), and a plurality of inner gas pipes (304). The outer coal pipe (301) and the plurality of outer gas pipes (302) are fixedly installed on the guide pipe (1). Six nozzles (2) are fixedly installed at one end of each of the plurality of inner gas pipes (304). A plurality of welding rings (305) are fixedly installed at one end of each of the outer coal pipe (301), the plurality of outer gas pipes (302), the inner coal pipe (303), and the plurality of inner gas pipes (304). Two sealing gaskets (306) are fixedly installed at one end of each of the outer coal pipe (301), the plurality of outer gas pipes (302), the inner coal pipe (303), and the plurality of inner gas pipes (304).

2. The water-coal slurry gasification burner according to claim 1, characterized in that: The external air pipes (302) and the internal air pipes (304) are all composed of annular pipes, and the six nozzles (2) are fixedly installed at equal intervals on the internal air pipes (304).

3. The water-coal slurry gasification burner according to claim 2, characterized in that: The distance between the outer gas pipe (302) and the outer coal pipe (301) and the adjacent outer gas pipe (302) is consistent, and the distance between the inner gas pipe (304) and the inner coal pipe (303) and the adjacent inner gas pipe (304) is consistent.

4. The water-coal slurry gasification burner according to claim 3, characterized in that: The centers of the outer coal pipe (301), several outer gas pipes (302), inner coal pipe (303) and several inner gas pipes (304) are all located on the same straight line, and the sealing gaskets (306) on both sides are opposite to each other.

5. A coal-water slurry gasification burner according to claim 4, characterized in that: A fixing mechanism (4) is provided between the outer coal pipe (301), several outer gas pipes (302), inner coal pipe (303), and several inner gas pipes (304). The fixing mechanism (4) includes two reinforcing flanges (401). The two reinforcing flanges (401) are respectively fixedly installed at one end of the outer gas pipe (302) and the inner gas pipe (304). Several reinforcing bolts (402) are fixedly installed through the two reinforcing flanges (401). A connecting flange (403) is fixedly installed in the middle of the outer gas pipe (302). Several connecting bolts (404) are fixedly installed on the connecting flange (403). A welding plate (405) is fixedly installed on the several connecting bolts (404).

6. A coal-water slurry gasification burner according to claim 5, characterized in that: The reinforcing flanges (401) are fixedly installed on the outermost outer air pipe (302) and the inner air pipe (304), respectively. The outer air pipe (302) and the inner air pipe (304) are respectively protruding and installed on one side of the two reinforcing flanges (401).

7. A coal-water slurry gasification burner according to claim 5, characterized in that: The connecting flange (403) is glued to the welding plate (405), and the inner side of the welding plate (405) is provided with a curvature.

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