Coal powder treatment device for coal lock coal feeding system of gasification furnace

Abstract

The utility model belongs to synthetic ammonia production equipment technical field, concretely relates to a kind of pulverized coal processing device for gasification furnace coal lock coal adding system, including the pulverized coal passageway being communicated with coal chute, the inlet of the pulverized coal passageway is connected with cyclone separator, the exhaust port of the cyclone separator is discharged to air after processing gas, and the discharge port of the cyclone separator is connected with pulverized coal collection box.The utility model is through the additional pulverized coal through and cyclone separator, realizes the collection to pulverized coal, can carry out secondary utilization to pulverized coal, simultaneously through the cooperation of ejector and high-pressure air pipeline can realize the suction to pulverized coal, and then improve the collection effect of pulverized coal.

Description

Technical Field

[0001] This utility model belongs to the technical field of synthetic ammonia production equipment, specifically relating to a coal powder treatment device for a coal lock feeding system of a gasifier. Background Technology

[0002] In the production process of synthetic ammonia plants, coal gasification using Lurgi Mark IV pressurized gasifiers is a crucial step. Under normal load operation, each gasifier requires lump coal to be fed from the coal bunker via a coal chute into the coal lock at the top of the gasifier every half hour. During this continuous feeding process, a large amount of fine coal dust is inevitably generated due to collisions and friction between the lump coal. Currently, the industry's common approach is to transport the generated coal dust to subsequent filtration equipment through a specially designed coal dust channel. However, due to the large amount and high concentration of coal dust, the filtration equipment becomes clogged quickly due to coal dust accumulation, resulting in a significant decrease in filtration efficiency or even complete failure. Furthermore, existing filtration systems only focus on coal dust removal and fail to achieve effective collection and resource utilization of coal dust, which not only increases operating and maintenance costs but also wastes available energy, hindering the company's energy conservation, emission reduction, and economic benefits. Utility Model Content

[0003] This invention provides a coal powder treatment device for a coal lock feeding system in a gasifier to address the above-mentioned problems.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A pulverized coal treatment device for a coal lock feeding system of a gasifier includes a pulverized coal channel connected to a coal chute, the pulverized coal channel being connected to the inlet of a cyclone separator, the exhaust port of the cyclone separator discharging the treated gas into the air, and the discharge port of the cyclone separator being connected to a pulverized coal collection box.

[0005] Furthermore, there are two coal powder channels located at the upper and lower parts of the coal chute, respectively.

[0006] Furthermore, the pulverized coal channel is connected to a corrugated compensator via a flange, and the two corrugated compensators are connected to two ports of a tee pipe via flanges. The other port of the tee pipe is connected to the inlet of a cyclone separator via a flange.

[0007] Furthermore, the other port of the three-way pipe is connected to the inlet of the injector via a flange, and the outlet of the injector is connected to the inlet of the cyclone separator via a flange. A high-pressure air pipeline is installed inside the three-way pipe to spray high-compressed air into the injector, thereby drawing the inside of the pulverized coal channel into a negative pressure state to achieve the collection of pulverized coal.

[0008] Furthermore, the outlet of the injector is connected to the inlet of the silencer via a flange, and the outlet of the silencer is connected to the inlet of the cyclone separator via a flange.

[0009] Compared with the prior art, the present invention has the following advantages: This invention achieves coal powder collection by adding a coal powder passage and a cyclone separator, enabling the coal powder to be reused. At the same time, the combination of an ejector and a high-pressure air pipeline enables the suction of coal powder, thereby improving the coal powder collection effect.

[0010] This utility model is equipped with a corrugated compensator, which can compensate for the displacement difference between the pulverized coal channel and the T-junction pipe, thereby improving the connection efficiency. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model; In the diagram, 1 is the pulverized coal channel, 2 is the cyclone separator, 3 is the pulverized coal collection box, 4 is the corrugated compensator, 5 is the tee pipe, 6 is the ejector, 7 is the high-pressure air pipeline, 8 is the silencer, 9 is the coal bunker, 10 is the coal chute, 11 is the coal lock valve, and 12 is the gasifier coal lock. Detailed Implementation

[0012] To further illustrate the technical solution of this utility model, the following embodiments will be used to further explain this utility model.

[0013] like Figure 1 As shown, a pulverized coal treatment device for a coal lock feeding system of a gasifier includes a pulverized coal channel 1 connected to a coal chute 10. Two pulverized coal channels 1 are located at the upper and lower parts of the coal chute 10, respectively. The pulverized coal channel 1 is connected to a corrugated compensator 4 via a flange. The two corrugated compensators 4 are connected to two ports of a three-way pipe 5 via flanges. The other port of the three-way pipe 5 is connected to the inlet of an injector 6 via a flange. A high-pressure air pipeline 7 is installed inside the three-way pipe 5 to spray high-compressed air into the injector 6, thereby drawing the pulverized coal channel 1 into a negative pressure state to collect the pulverized coal. The outlet of the injector 6 is connected to the inlet of a silencer 8 via a flange. The outlet of the silencer 8 is connected to the inlet of a cyclone separator 2 via a flange. The exhaust port of the cyclone separator 2 discharges the treated gas into the air. The discharge port of the cyclone separator 2 is connected to a pulverized coal collection box 3.

[0014] The foregoing has shown and described the main features and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0015] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pulverized coal treatment device for a coal lock feeding system in a gasifier, characterized in that: It includes a coal powder channel (1) connected to a coal chute (10), the coal powder channel (1) being connected to the inlet of a cyclone separator (2), the exhaust port of the cyclone separator (2) discharging the treated gas into the air, and the discharge port of the cyclone separator (2) being connected to a coal powder collection box (3).

2. The pulverized coal treatment device for a coal lock feeding system in a gasifier according to claim 1, characterized in that: The pulverized coal channel (1) has two sections located at the upper and lower parts of the coal chute (10).

3. A pulverized coal treatment device for a coal lock feeding system in a gasifier according to claim 2, characterized in that: The pulverized coal channel (1) is connected to the corrugated compensator (4) via a flange. The two corrugated compensators (4) are connected to two ports of the tee pipe (5) via flanges. The other port of the tee pipe (5) is connected to the inlet of the cyclone separator (2) via a flange.

4. A pulverized coal treatment device for a coal lock feeding system in a gasifier according to claim 3, characterized in that: The other port of the three-way pipe (5) is connected to the inlet of the injector (6) through a flange. The outlet of the injector (6) is connected to the inlet of the cyclone separator (2) through a flange. A high-pressure air pipeline (7) is provided in the three-way pipe (5) for blowing high-compressed air into the injector (6), thereby drawing the inside of the coal powder channel (1) into a negative pressure state and realizing the collection of coal powder.

5. A pulverized coal treatment device for a coal lock feeding system in a gasifier according to claim 4, characterized in that: The outlet of the injector (6) is connected to the inlet of the silencer (8) via a flange, and the outlet of the silencer (8) is connected to the inlet of the cyclone separator (2) via a flange.

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