Uniform feeding mechanism of four-nozzle opposed coal water slurry gasifier

Abstract

The utility model relates to the technical field of coal water slurry gasification furnace equipment, and disclose a kind of uniform feeding mechanism of four-nozzle opposed coal water slurry gasification furnace, including feed inlet, the inner wall of the feed inlet is fixedly connected with filter mechanism, the bottom of the feed inlet is connected with flow pipe, the bottom of the flow pipe is connected with uniform feeding mechanism.The uniform feeding mechanism of four-nozzle opposed coal water slurry gasification furnace, by the setting of uniform feeding mechanism, when using, coal water slurry is transported to the inside of shunt pipe by feed inlet, then the spiral guide vane arranged in shunt pipe transports coal water slurry, under the action of spiral guide vane, uniform cyclone can be formed in shunt pipe, so that coal water slurry is more evenly shunted to the inside of guide pipe at bottom, the initial uniformity of feed is guaranteed from structure, the uniformity in transportation process is improved, and the normal use of equipment is avoided by the uneven feeding amount of spray head.

Description

Technical Field

[0001] This utility model relates to the technical field of coal-water slurry gasification furnace equipment, and in particular to a uniform feeding mechanism for a four-nozzle opposed coal-water slurry gasification furnace. Background Technology

[0002] Coal-water slurry gasification technology is an important process that reacts coal-water slurry with oxygen in a gasifier to generate syngas, and it is widely used in chemical, energy, and other fields. The four-nozzle opposed-position coal-water slurry gasifier, with its four opposing nozzles for feeding, can effectively improve gasification efficiency and reaction completeness. However, existing four-nozzle opposed-position coal-water slurry gasifiers currently suffer from several problems during the feeding process.

[0003] Existing feeding mechanisms typically distribute coal-water slurry to four nozzles via simple pipes. However, due to differences in pipe length and resistance, as well as variations in the viscosity of the coal-water slurry itself, it is difficult to ensure uniform feed rates across the four nozzles. Uneven feeding leads to intense localized reactions and unbalanced temperature distribution within the gasifier, reducing gasification efficiency, increasing coal and oxygen consumption, and exacerbating localized erosion of the gasifier lining, thus shortening its lifespan. Furthermore, traditional feeding mechanisms lack the function of filtering the coal-water slurry. Impurities mixed in the slurry can easily enter the nozzles, causing blockages and affecting their normal operation. Therefore, a uniform feeding mechanism for a four-nozzle opposed coal-water slurry gasifier is proposed. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] The purpose of this invention is to provide a uniform feeding mechanism for a four-nozzle opposed coal-water slurry gasifier, so as to solve the problems of uniform feeding and filtration of coal-water slurry mentioned in the background art.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a uniform feeding mechanism for a four-nozzle opposed coal-water slurry gasifier, comprising a feed inlet, a filter mechanism fixedly connected to the inner wall of the feed inlet, a flow pipe extending through the bottom of the feed inlet, a uniform feeding mechanism extending through the bottom of the flow pipe, the filter mechanism comprising a positioning block fixedly connected to the inner wall of the feed inlet, a filter screen overlapping the surface of the positioning block, and handles fixedly connected to both sides of the surface of the filter screen; the uniform feeding mechanism comprising a diversion pipe extending through the bottom of the flow pipe, and spiral guide vanes installed inside the diversion pipe.

[0008] As a further embodiment of this utility model, a guide pipe is connected through the bottom of the diversion pipe, and a nozzle is connected through the bottom of the guide pipe. The nozzle serves to spray the coal-water slurry.

[0009] As a further embodiment of this utility model, an electrically controlled valve is installed in the middle of the surface of the guide tube. One side of the electrically controlled valve is electrically connected to a PLC controller via a power line. The PLC controller controls the opening and closing of the electrically controlled valve.

[0010] As a further embodiment of this utility model, a flow meter is installed on one edge of the top surface of the guide pipe. One side of the flow meter is electrically connected to one side of the PLC controller via a power cord. The flow meter is configured to detect the flow rate in real time.

[0011] As a further embodiment of this utility model, an annular connecting block is fixedly connected to the surface of the diverter pipe. The surface of the annular connecting block is provided with several connecting holes. The annular connecting block serves to fix the equipment.

[0012] As a further embodiment of this utility model, the connecting hole is provided with an internal thread, and the internal thread is connected to the external support mechanism by bolts. The connecting hole serves to fix the annular connecting block.

[0013] As a further embodiment of this utility model, a protective sleeve is fitted onto the surface of the handle. The protective sleeve is made of silicone. The handle serves to pull the filter screen.

[0014] (III) Beneficial Effects

[0015] This utility model provides a uniform feeding mechanism for a four-nozzle opposed coal-water slurry gasifier, which has the following beneficial effects:

[0016] 1. The uniform feeding mechanism of this four-nozzle opposed coal-water slurry gasifier, through the setting of the uniform feeding mechanism, delivers coal-water slurry through the feed port to the inside of the distribution pipe during use. Then, the spiral guide vanes set in the distribution pipe transport the coal-water slurry. Under the action of the spiral guide vanes, a uniform vortex can be formed in the distribution pipe, so that the coal-water slurry is more evenly distributed to the bottom guide pipe. The structure ensures the initial uniformity of feeding and improves the uniformity during transportation, avoiding uneven feeding from the nozzles that would affect the normal use of the equipment.

[0017] 2. The uniform feeding mechanism of this four-nozzle opposed coal-water slurry gasifier, through the setting of the filtration mechanism, allows the coal-water slurry to enter the equipment through the feed inlet during operation. Since a filter screen is set at the feed inlet, the filter screen is used to filter the impurities mixed in the coal-water slurry. The filtered impurities will remain on the top of the filter screen. At this time, simply pull the handles on both sides of the filter screen to pull it out from inside the feed inlet, which is convenient for the staff to clean and replace the filter screen, and prevents impurities from entering the pipeline and clogging the pipeline and the nozzle at the end of the pipeline. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the filter mechanism structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the uniform feeding mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the nozzle structure of this utility model.

[0022] In the diagram: 1. Feed inlet; 2. Filtering mechanism; 201. Positioning block; 202. Filter screen; 203. Handle; 3. Flow pipe; 4. Uniform feeding mechanism; 401. Diverter pipe; 402. Spiral guide vane; 5. Guide pipe; 6. Nozzle; 7. Electrically controlled valve; 8. PLC controller; 9. Flow meter; 10. Annular connecting block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] Please see Figures 1 to 4 This utility model provides a technical solution: a uniform feeding mechanism for a four-nozzle opposed coal-water slurry gasifier, including a feed inlet 1, a filter mechanism 2 fixedly connected to the inner wall of the feed inlet 1, the filter mechanism 2 prevents impurities from entering the pipe and clogging the pipe and the nozzle 6 at the end of the pipe, a flow pipe 3 is connected through the bottom of the feed inlet 1, and a uniform feeding mechanism 4 is connected through the bottom of the flow pipe 3, the uniform feeding mechanism 4 prevents uneven feeding of the nozzle 6 from affecting the normal use of the equipment;

[0025] The filtering mechanism 2 includes a positioning block 201 fixedly connected to the inner wall of the feed inlet 1. A filter screen 202 is attached to the surface of the positioning block 201, and handles 203 are fixedly connected to both sides of the surface of the filter screen 202.

[0026] The uniform feeding mechanism 4 includes a diversion pipe 401 that is connected to the bottom of the flow pipe 3, and a spiral guide vane 402 is installed inside the diversion pipe 401.

[0027] The bottom of the diversion pipe 401 is connected to the guide pipe 5, and the bottom of the guide pipe 5 is connected to the nozzle 6. The nozzle 6 is used to spray the coal-water slurry.

[0028] An electric control valve 7 is installed in the middle of the surface of the guide pipe 5. One side of the electric control valve 7 is electrically connected to a PLC controller 8 via a power line. The PLC controller 8 is configured to control the opening and closing of the electric control valve 7.

[0029] A flow meter 9 is installed on one edge of the top surface of the guide pipe 5. One side of the flow meter 9 is electrically connected to one side of the PLC controller 8 via a power cord. The flow meter 9 is configured to detect the flow rate in real time.

[0030] A ring-shaped connecting block 10 is fixedly connected to the surface of the diverter 401. The surface of the ring-shaped connecting block 10 is provided with several connecting holes. The ring-shaped connecting block 10 serves to fix the equipment.

[0031] The connecting hole has an internal thread, which is connected to the external support mechanism by bolts. The connecting hole serves to fix the annular connecting block 10.

[0032] The handle 203 has a protective sleeve on its surface. The protective sleeve is made of silicone. The handle 203 is designed to pull the filter screen 202.

[0033] In this invention, the working steps of the device are as follows:

[0034] First step: When in use, the coal-water slurry is fed into the distribution pipe 401 through the feed inlet 1. The spiral guide vanes 402 installed in the distribution pipe 401 then transport the coal-water slurry. Under the action of the spiral guide vanes 402, a uniform vortex can be formed in the distribution pipe 401, so that the coal-water slurry is more evenly distributed into the bottom guide pipe 5. The structure ensures the initial uniformity of the feed and improves the uniformity during the transportation process.

[0035] The second step: When in use, the coal-water slurry enters the equipment through the feed inlet 1. Since a filter screen 202 is installed at the feed inlet 1, the filter screen 202 is used to filter the impurities mixed in the coal-water slurry. The filtered impurities will remain on the top of the filter screen 202. At this time, simply pull the handles 203 on both sides of the filter screen 202 to pull the filter screen 202 out of the feed inlet 1, which makes it convenient for the staff to clean and replace the filter screen 202.

[0036] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0037] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0038] 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 these 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 uniform feeding mechanism for a four-nozzle opposed-type coal-water slurry gasifier, comprising a feed inlet (1), characterized in that: A filter mechanism (2) is fixedly connected to the inner wall of the feed inlet (1), and a flow pipe (3) is connected through the bottom of the feed inlet (1). A uniform feeding mechanism (4) is connected through the bottom of the flow pipe (3). The filtering mechanism (2) includes a positioning block (201) fixedly connected to the inner wall of the feed inlet (1), and a filter screen (202) is attached to the surface of the positioning block (201). Handles (203) are fixedly connected to both sides of the surface of the filter screen (202). The uniform feeding mechanism (4) includes a diversion pipe (401) that runs through and connects to the bottom of the flow pipe (3), and a spiral guide vane (402) is installed inside the diversion pipe (401).

2. The uniform feeding mechanism for a four-nozzle opposed-type coal-water slurry gasifier according to claim 1, characterized in that: The bottom of the diversion pipe (401) is connected to a guide pipe (5), and the bottom of the guide pipe (5) is connected to a nozzle (6).

3. The uniform feeding mechanism for a four-nozzle opposed-type coal-water slurry gasifier according to claim 2, characterized in that: An electrically controlled valve (7) is installed in the middle of the surface of the guide pipe (5), and a PLC controller (8) is electrically connected to one side of the electrically controlled valve (7) via a power line.

4. The uniform feeding mechanism for a four-nozzle opposed-type coal-water slurry gasifier according to claim 2, characterized in that: A flow meter (9) is installed on one side of the top surface of the guide pipe (5), and one side of the flow meter (9) is electrically connected to one side of the PLC controller (8) via a power line.

5. The uniform feeding mechanism for a four-nozzle opposed-type coal-water slurry gasifier according to claim 1, characterized in that: The surface of the diverter (401) is fixedly connected to an annular connecting block (10), and the surface of the annular connecting block (10) is provided with a plurality of connecting holes.

6. The uniform feeding mechanism for a four-nozzle opposed-type coal-water slurry gasifier according to claim 5, characterized in that: The connecting hole has an internal thread, and the internal thread is connected to the external support mechanism by bolts.

7. The uniform feeding mechanism for a four-nozzle opposed-type coal-water slurry gasifier according to claim 1, characterized in that: The surface of the handle (203) is fitted with a protective sleeve, which is made of silicone.

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