Gas-making furnace structure capable of preventing gas leakage

Abstract

The utility model relates to the technical field of gas-making furnaces, in particular to a gas-making furnace structure capable of preventing gas leakage. In order to solve the problem of gas leakage in the coal adding process of a gas making furnace, the novel gas making furnace structure capable of preventing gas leakage is provided and comprises a gas making furnace body, a nitrogen blow-down pipe and a nitrogen inlet pipe, the gas making furnace body comprises a stock bin, an articulated chute provided with a gate valve, a small distributing device, a large distributing device and a furnace body which are sequentially arranged in a communicated mode from top to bottom, the large distributor is provided with a nitrogen inlet and a nitrogen discharge port, the nitrogen blow-down pipe is hermetically communicated with the nitrogen inlet, the nitrogen inlet pipe is hermetically communicated with the nitrogen discharge port, the nitrogen blow-down pipe is provided with an emptying valve, and the nitrogen inlet pipe is provided with a nitrogen adding valve and a pressure gauge. According to the utility model, the gas in the furnace body is sealed through nitrogen, so that the problem of gas leakage is ingeniously solved under the condition that normal production operation is met.

Description

Technical Field

[0001] The utility model relates to the technical field of gas making furnaces, in particular to a gas making furnace structure capable of preventing coal gas leakage. Background Art

[0002] During the coal adding process of the gasifier, each time the coal is added, it must pass through the silo, the chute with a gate valve, the small distributor, and the large distributor in turn to enter the furnace body of the gasifier. After entering the furnace body of the gasifier, the coal is gasified to produce coal gas. During the second coal adding process, the coal gas in the furnace body of the gasifier is easy to leak out from the large distributor, the small distributor, the chute, and the silo, making the entire workshop full of gas. The GDS often alarms, the employees' working environment is poor, and there are great safety hazards. Summary of the invention

[0003] In order to solve the problem of gas leakage during the coal adding process of the gasifier, the utility model provides a new gasifier structure which can prevent gas leakage.

[0004] The utility model is realized by adopting the following technical solutions:

[0005] A gasifier structure for preventing gas leakage comprises a gasifier body, a nitrogen vent pipe and a nitrogen inlet pipe. The gasifier body comprises a silo, a slide pipe with a plug valve, a small distributor, a large distributor and a furnace body which are sequentially connected and arranged from top to bottom. The large distributor is provided with a nitrogen inlet and a nitrogen discharge port. The nitrogen inlet pipe is sealed and connected with the nitrogen inlet. The nitrogen vent pipe is sealed and connected with the nitrogen discharge port. The nitrogen vent pipe is provided with a vent valve. The nitrogen inlet pipe is provided with a nitrogen adding valve and a pressure gauge.

[0006] The usage steps are as follows: 1) Open the small distributor, open the gate valve, and let the coal fall from the silo into the small distributor; 2) Close the gate valve, and after 5 seconds, close the small distributor; 3) Open the nitrogen adding valve, so that the nitrogen pressure is greater than or equal to the gas pressure in the furnace body of the gasifier, then open the large distributor, and the coal enters the furnace body through the large distributor; 4) After the large distributor is filled with coal, close the large distributor, and close the nitrogen adding valve after 2 seconds; 5) Open the vent valve, exhaust the nitrogen, and then close the vent valve.

[0007] When adding coal, set it to add coal every 3 minutes (it can be adjusted as appropriate according to the amount of coal used during specific implementation). Each time you add coal, just follow the above steps.

[0008] Furthermore, the gate valve, small distributor, large distributor, vent valve and nitrogen adding valve are automatically controlled to open and close by DCS, thus realizing automatic control, saving manpower and ensuring efficient operation.

[0009] Furthermore, two gate valves are provided on the nitrogen vent pipe and the nitrogen inlet pipe for use during maintenance to ensure that the nitrogen vent pipe and the nitrogen inlet pipe are in a closed state during maintenance, thereby ensuring safety during maintenance.

[0010] The beneficial effects of the utility model are as follows: the utility model seals the gas in the furnace body with nitrogen, thereby cleverly solving the problem of gas leakage while meeting normal production operations, improving the overall environment in the workshop, eliminating its safety hazards, and laying the foundation for safe, environmentally friendly and stable operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings herein are incorporated into and constitute a part of the specification, show embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0014] In the figure: 1-nitrogen vent pipe, 2-nitrogen inlet pipe, 3-silo, 4-gate valve, 5-small distributor, 6-large distributor, 7-furnace body, 8-vent valve, 9-nitrogen adding valve, 10-pressure gauge, 11-gate valve. DETAILED DESCRIPTION

[0015] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0016] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" 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 it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0017] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] The specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0019] like Figure 1 As shown, a gasification furnace structure for preventing gas leakage includes a gasification furnace body, a nitrogen vent pipe 1, and a nitrogen inlet pipe 2. The gasification furnace body includes a silo 3, a chute with a gate valve 4, a small distributor 5, a large distributor 6, and a furnace body 7 which are sequentially connected from top to bottom. The large distributor 6 is provided with a nitrogen inlet and a nitrogen discharge port. The nitrogen inlet pipe 2 is sealed and connected to the nitrogen inlet, the nitrogen vent pipe is sealed and connected to the nitrogen discharge port, the nitrogen vent pipe 1 is provided with a vent valve 8, and the nitrogen inlet pipe 2 is provided with a nitrogen adding valve 9 and a pressure gauge 10.

[0020] The usage steps are as follows: 1) The small distributor 5 is opened, the gate valve 4 is opened, and the coal falls from the silo 3 into the small distributor 5; 2) The gate valve 4 is closed, and after 5 seconds, the small distributor 5 is closed; 3) The nitrogen adding valve 9 is opened, and the nitrogen pressure is greater than or equal to the gas pressure in the furnace body 7 of the gasification furnace, and then the large distributor 6 is opened, and the coal enters the furnace body 7 through the large distributor 6; 4) After the large distributor 6 is filled with coal, the large distributor 6 is closed, and the nitrogen adding valve 9 is closed after 2 seconds; 5) The vent valve 8 is opened, and the vent valve 8 is closed after the nitrogen is emptied.

[0021] When adding coal, set it to add coal every 3 minutes (it can be adjusted as appropriate according to the amount of coal used during specific implementation). Each time you add coal, just follow the above steps.

[0022] During specific implementation, the gate valve 4, the small distributor 5, the large distributor 6, the vent valve 8 and the nitrogen adding valve 9 are automatically controlled to open and close by the DCS, thus realizing automatic control, saving manpower and ensuring efficient operation.

[0023] During specific implementation, two gate valves 11 are provided on the nitrogen vent pipe 1 and the nitrogen inlet pipe 2 for use during maintenance to ensure that the nitrogen vent pipe 1 and the nitrogen inlet pipe 2 are in a closed state during maintenance to ensure safety during maintenance.

[0024] The above is only a specific implementation of the utility model, which enables those skilled in the art to understand or implement the utility model. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A gasifier structure for preventing gas leakage, comprising a gasifier body, wherein the gasifier body comprises a silo (3) connected and arranged in sequence from top to bottom, a slide pipe with a gate valve (4) disposed thereon, a small distributor (5), a large distributor (6), and a furnace body (7), wherein: The structure further comprises a nitrogen vent pipe (1) and a nitrogen inlet pipe (2). The large distributor (6) is provided with a nitrogen inlet and a nitrogen discharge port. The nitrogen inlet pipe (2) is sealed and connected to the nitrogen inlet. The nitrogen vent pipe is sealed and connected to the nitrogen discharge port. The nitrogen vent pipe (1) is provided with a vent valve (8). The nitrogen inlet pipe (2) is provided with a nitrogen adding valve (9) and a pressure gauge (10).

2. A gas-generating furnace structure for preventing gas leakage according to claim 1, characterized in that: The gate valve (4), the small distributor (5), the large distributor (6), the vent valve (8) and the nitrogen addition valve (9) are automatically controlled to open and close by the DCS.

3. A gas-generating furnace structure for preventing gas leakage according to claim 2, characterized in that: Two gate valves (11) are also provided on the nitrogen vent pipe (1) and the nitrogen inlet pipe (2).

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