CN213739311U

CN213739311U - Blowing device for ash bin of gas making furnace

Info

Publication number: CN213739311U
Application number: CN202022781528.0U
Authority: CN
Inventors: 陈清松
Original assignee: Xinyangfeng Agricultural Science And Technology Co ltd
Current assignee: Xinyangfeng Agricultural Science And Technology Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-20
Anticipated expiration: 2030-11-26

Abstract

A blowing device for an ash bin of a gas making furnace comprises a steam main pipe, an upper blowing steam pipeline, a lower blowing steam pipeline and an ash bin chute bucket steam blowing pipeline; the steam main pipe is provided with a steam main valve, the tail end of the steam main pipe is connected with an upper blowing steam pipeline and a lower blowing steam pipeline, the tail end of the upper blowing steam pipeline is connected to an air box of the gas making furnace, and the tail end of the lower blowing steam pipeline is connected to a furnace body of the gas making furnace. The utility model discloses from the parallelly connected bypass of upward blowing steam valve oil circuit, join in marriage oil pipe and connect a phi DN50 hydraulic gate valve, same solenoid directional valve control hydraulic gate valve and upward blowing steam hydrovalve. The top of a pair of sliding hoppers which are connected into an ash bin of a gas making furnace through two phi DN32 pipes from a hydraulic gate valve, and the two sliding hoppers blow upwards and synchronously act with a steam main valve, so that steam enters the furnace to purge the ash bin, residual coal gas in the ash bin is completely removed, and ash discharging safety is ensured. The hydraulic gate valve and the upward blowing steam hydraulic valve share an oil path, so that an oil pipe and an electromagnetic directional valve are saved, and convenience and money are saved.

Description

Blowing device for ash bin of gas making furnace

Technical Field

The utility model relates to a gas making furnace equipment field, concretely relates to gas making furnace ash storehouse is with sweeping device.

Background

The gas making process of the gas making furnace is divided into five stages, wherein the five stages comprise an upper blowing gas stage and a lower blowing gas stage. And an upper blowing gas stage: the gas enters the furnace body through the down pipe, passes through the blast box and enters the gas cabinet; the following blowing gas stage: the gas flows through the blast box from the furnace body, enters the down pipe and enters the gas sending cabinet. Most of the existing phi 2650mm gas making furnaces automatically discharge ash without stopping the furnace, and perform the second upper and blowing-off stages, wherein steam and air respectively enter the furnace bottom from the wind box to blow the gas at the furnace bottom, thereby preventing detonation. However, due to the full-automatic ash discharging and ash bin sealing state, the ash bin is lower than the furnace bottom, the bottom of the ash bin cannot be swept in the second upper blowing stage and the blowing-off stage, air is fed into the furnace and is easily contacted with residual coal gas at the bottom of the ash bin, and the phenomenon of detonation occurs.

And (3) harming:

1. damage to facility equipment:

the shock wave generated by the detonation easily cracks the air box or explodes the bottom of the air box, and a fire hazard occurs. And when ash is discharged, the gate valve is opened, and the coal gas is easily subjected to flash explosion when contacting with air, so that damage is caused. The gate plate of the down valve is easy to be burst or the cross head of the down valve is burst to be broken, and the gate valve is broken to discharge ash, so that the down valve is forced to be shut down for maintenance.

2. The damage to the process is as follows:

in normal production, the gasification layer is stabilized on the ash slag layer and has a certain thickness, the stability of the furnace condition can be kept, but the detonation can turn over the slag layer to form a wind tunnel, thereby causing carbon removal, lower generation of carbon, unstable gasification layer and influence on the gas forming amount of a single furnace.

Disclosure of Invention

The utility model aims to provide a blowing device for an ash bin of a gas making furnace aiming at the defects.

The utility model comprises a steam main pipe, an upper steam blowing pipeline, a lower steam blowing pipeline and an ash bin chute bucket steam purging pipeline;

the steam main pipe is provided with a steam main valve, the tail end of the steam main pipe is connected with the upper blowing steam pipeline and the lower blowing steam pipeline, the tail end of the upper blowing steam pipeline is connected to an air box of the gas making furnace, and the tail end of the lower blowing steam pipeline is connected to a furnace body of the gas making furnace;

an upward steam blowing manual valve and an upward steam blowing hydraulic valve are arranged on the upward steam blowing pipeline, the pipeline between the upward steam blowing manual valve and the upward steam blowing hydraulic valve is connected with the ash bin chute steam blowing pipeline, a hydraulic gate valve is arranged on the ash bin chute steam blowing pipeline, the rear section of the ash bin chute steam blowing pipeline is divided into two sub-blowing pipes, and the two sub-blowing pipes are respectively connected with the tops of a pair of chutes of the ash bin of the gas making furnace;

the upper blowing steam valve is connected with an upper blowing steam valve oil way, the upper blowing steam valve oil way is connected with a bypass oil distribution pipe in parallel, and the bypass oil distribution pipe is connected to the hydraulic gate valve.

And a downward-blowing steam manual valve and a downward-blowing steam hydraulic valve are arranged on the downward-blowing steam pipeline.

And an electromagnetic reversing valve is arranged on the oil path of the upward blowing steam valve.

The hydraulic gate valve is a phi DN50 hydraulic gate valve.

The two sub-blowing pipes are phi DN32 pipes.

The utility model has the advantages that: a bypass is connected in parallel with an oil path of the upward blowing steam valve, an oil distribution pipe is connected with a phi DN50 hydraulic gate valve, and the same electromagnetic directional valve controls the hydraulic gate valve and the upward blowing steam hydraulic valve. The top of a pair of sliding hoppers which are connected into an ash bin of a gas making furnace through two phi DN32 pipes from a hydraulic gate valve, and the two sliding hoppers blow upwards and synchronously act with a steam main valve, so that steam enters the furnace to purge the ash bin, residual coal gas in the ash bin is completely removed, and ash discharging safety is ensured. The hydraulic gate valve and the upward blowing steam hydraulic valve share an oil path, so that an oil pipe and an electromagnetic directional valve are saved, and convenience and money are saved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Detailed Description

As shown in the attached drawings, the utility model comprises a steam main pipe 1, an upper blowing steam pipeline 2, a lower blowing steam pipeline 3 and an ash bin chute bucket steam purging pipeline 4;

the steam main pipe 1 is provided with a steam main valve 5, the tail end of the steam main pipe 1 is connected with the upper blowing steam pipeline 2 and the lower blowing steam pipeline 3, the tail end of the upper blowing steam pipeline 2 is connected to an air box of the gas making furnace, and the tail end of the lower blowing steam pipeline 3 is connected to a furnace body of the gas making furnace;

an upward steam blowing manual valve 6 and an upward steam blowing hydraulic valve 7 are arranged on the upward steam blowing pipeline 2, the pipeline between the upward steam blowing manual valve 6 and the upward steam blowing hydraulic valve 7 is connected with the ash bin chute steam blowing pipeline 4, a hydraulic gate valve 8 is arranged on the ash bin chute steam blowing pipeline 4, the rear section of the ash bin chute steam blowing pipeline 4 is divided into two sub-blowing pipes 14, and the two sub-blowing pipes 14 are respectively connected with the tops of a pair of chutes 9 of an ash bin of the gas making furnace;

the upper blowing steam hydraulic valve 7 is connected with an upper blowing steam valve oil way 10, the upper blowing steam valve oil way 10 is connected with a bypass oil distribution pipe 11 in parallel, and the bypass oil distribution pipe 11 is connected to the hydraulic gate valve 8.

And a manual down-blowing steam valve 12 and a hydraulic down-blowing steam valve 13 are arranged on the down-blowing steam pipeline 3.

And an electromagnetic reversing valve is arranged on the upward blowing steam valve oil way 10.

The hydraulic gate valve 8 is a phi DN50 hydraulic gate valve.

The two sub-blowing pipes 14 are phi DN32 pipes.

The working principle is as follows: steam in the steam main pipe 1 is respectively connected to an air box of the gas making furnace and a furnace body of the gas making furnace through an upper blowing steam pipeline 2 and a lower blowing steam pipeline 3. And a newly-increased ash bin chute steam purging pipeline 4 is arranged on the upper blowing steam pipeline 2 between the upper blowing steam manual valve 6 and the upper blowing steam hydraulic valve 7, and the top of the ash bin chute is purged. A bypass is connected in parallel with an oil path of the upward blowing steam valve, an oil distribution pipe is connected with a phi DN50 hydraulic gate valve, and the same electromagnetic directional valve controls the hydraulic gate valve and the upward blowing steam hydraulic valve. The top of a pair of sliding hoppers which are connected into an ash bin of a gas making furnace through two phi DN32 pipes from a hydraulic gate valve, and the two sliding hoppers blow upwards and synchronously act with a steam main valve, so that steam enters the furnace to purge the ash bin, residual coal gas in the ash bin is completely removed, and ash discharging safety is ensured. The hydraulic gate valve and the upward blowing steam hydraulic valve share an oil path, so that an oil pipe and an electromagnetic directional valve are saved, and convenience and money are saved.

Claims

1. A blowing device for an ash bin of a gas making furnace is characterized by comprising a steam main pipe (1), an upper blowing steam pipeline (2), a lower blowing steam pipeline (3) and an ash bin chute steam blowing pipeline (4);

a steam main valve (5) is arranged on the steam main pipe (1), the tail end of the steam main pipe (1) is connected with the upper blowing steam pipeline (2) and the lower blowing steam pipeline (3), the tail end of the upper blowing steam pipeline (2) is connected to an air box of the gas making furnace, and the tail end of the lower blowing steam pipeline (3) is connected to a furnace body of the gas making furnace;

an upward steam blowing manual valve (6) and an upward steam blowing hydraulic valve (7) are arranged on the upward steam blowing pipeline (2), the pipeline between the upward steam blowing manual valve (6) and the upward steam blowing hydraulic valve (7) is connected with the ash bin chute steam blowing pipeline (4), a hydraulic gate valve (8) is arranged on the ash bin chute steam blowing pipeline (4), the rear section of the ash bin chute steam blowing pipeline (4) is divided into two sub-blowing pipes (14), and the two sub-blowing pipes (14) are respectively connected with the tops of a pair of chutes (9) of the ash bin of the gas making furnace;

the upper blowing steam hydraulic valve (7) is connected with an upper blowing steam valve oil way (10), the upper blowing steam valve oil way (10) is connected with a bypass oil distribution pipe (11) in parallel, and the bypass oil distribution pipe (11) is connected to the hydraulic gate valve (8).

2. The blowing device for the ash bin of the gas-making furnace according to claim 1, wherein a manual valve (12) for blowing steam downwards and a hydraulic valve (13) for blowing steam downwards are arranged on the steam-blowing pipeline (3).

3. The blowing device for the ash bin of the gas making furnace according to claim 1, wherein the oil path (10) of the upward blowing steam valve is provided with an electromagnetic directional valve.

4. The purging device for the ash bin of the gas-making furnace according to claim 1, wherein the hydraulic gate valve (8) is a Φ DN50 hydraulic gate valve.

5. The blowing device for the ash bin of the gas-making furnace as claimed in claim 1, wherein both the two sub-blowing pipes (14) are phi DN32 pipes.