CN-224212683-U - Stable powder collector operation device for coal injection operation area

Abstract

The utility model discloses a stable powder collector operation device for a coal injection operation area, wherein a gas storage tank is connected with a bag powder collector lifting cylinder and a bag powder collector dust chamber air cleaning chamber pulse valve group air bag through a lifting cylinder air source main pipe and a pulse air source main pipe respectively, the lifting cylinder air source main pipe and the pulse air source main pipe are connected in parallel, the lifting cylinder air source main pipe is communicated with the bag powder collector lifting cylinder to provide a power air source for controlling the cutting and connection of a bag powder collector dust chamber air cleaning chamber and the bag powder collector air chamber, the pulse air source main pipe is communicated with the bag powder collector dust chamber air cleaning chamber pulse valve group air bag to provide a power ash removal air source for the bag powder collector, an orifice plate flowmeter and a pneumatic cut-off valve are arranged on the pulse air source main pipe, and a main exhaust fan for exhausting waste gas is arranged on the bag powder collector air chamber to be connected. The utility model has high working efficiency, high automation, accuracy and reliability, and ensures the stable continuity of the production of the powder preparation system and the nitrogen injection.

Inventors

• YU ZIYANG
• JIANG CHENG
• TIAN XINGYUAN
• WANG BING
• YANG SHENGJU
• ZHANG FEIFEI

Assignees

• 青岛恒拓环保科技有限公司

Dates

Publication Date

20260508

Application Date

20250613

Claims (6)

1. 1. The stable powder collector operation device for the coal injection operation area comprises a gas storage tank and a cloth bag powder collector and is characterized in that the gas storage tank is connected with a lifting cylinder of the cloth bag powder collector and a pulse valve group gas bag of a dust chamber of the cloth bag powder collector through a lifting cylinder gas source main pipe and a pulse gas source main pipe respectively, the lifting cylinder gas source main pipe and the pulse gas source main pipe are connected in parallel, the lifting cylinder gas source main pipe is communicated with the lifting cylinder of the cloth bag powder collector to provide a power gas source for controlling the cutting-off and connection of the dust chamber of the cloth bag powder collector and the air chamber of the cloth bag powder collector, the pulse gas source main pipe is communicated with the pulse valve group gas bag of the dust chamber of the cloth bag powder collector to provide a power ash removing gas source for the cloth bag powder collector, a hole plate flowmeter and a pneumatic cut-off valve are arranged on a pulse main pipe, and a main exhaust fan for exhausting waste gas is arranged on the air chamber of the cloth bag powder collector to be connected.
2. 2. The stable powder collector operation device for the coal injection operation area according to claim 1, wherein a lifting cylinder air source hand valve, a first pressure reducing valve and a first flowmeter are arranged on the lifting cylinder air source main pipe.
3. 3. The stable powder collector operation device for the coal injection operation area according to claim 1, wherein a pulse air source hand valve, a second pressure reducing valve and a second flowmeter are arranged on the lifting air cylinder air source main pipe.
4. 4. The stable powder collector operation device for a coal injection operation area according to claim 1, wherein an air source pressure gauge is arranged on the air storage tank.
5. 5. The stable powder collector operation device for the coal injection operation area according to claim 1, wherein a pipeline communicated with a powder collecting hopper of the bag powder collector is further arranged on the pulse air source main pipe, and a nitrogen charging valve is arranged on a pipeline connected with the powder collecting hopper of the bag powder collector.
6. 6. The stable powder collector operation device for a coal injection operation area according to claim 1, wherein the pneumatic shut-off valve is connected with an electromagnetic valve and an explosion-proof operation box.

Description

Stable powder collector operation device for coal injection operation area Technical Field The utility model relates to the technical field of coal injection and powder preparation, in particular to a stable powder collector operation device for a coal injection operation area. Background The blast furnace coal injection technology uses pulverized coal to replace coke to provide heat and reducing agent for ironmaking production, thereby reducing the coke ratio and pig iron cost, and being an important ring for optimizing the structure of an ironmaking system. In daily production of the coal injection operation area coal pulverizing system, a pulse air source of the bag powder collector is connected with an air source of a lifting cylinder in series, a pulse original piece of the bag powder collector is damaged, the nitrogen pressure of the air source of the lifting cylinder is lower than 0.4Mpa, the bag powder collector is completely dropped in the production process of the lifting cylinder, the continuous operation stability of the coal pulverizing system is interrupted, pulverized coal falls back from a lifting pipe to pollute the site environment through a sealed coal feeder and a slag discharge port of a mill in a large amount, the bag box is shrunken in severe cases, long-time shutdown and overhaul are performed, the air permeability of the bag is greatly shortened, the service life of the bag is prolonged, the dust concentration of the discharge port exceeds the standard, and the environment is not up to standard. Meanwhile, the nitrogen pressure of the system is reduced, the blowing, vulcanization and stamping are affected, the coal pressure pulsation is caused, and the stability of the furnace condition of the blast furnace is restricted. Disclosure of Invention In order to overcome the problems in the prior art, the utility model provides a stable powder collector operation device for a coal injection operation area. The technical scheme includes that the stable powder collector operation device for the coal injection operation area comprises a gas storage tank and a cloth bag powder collector, wherein the gas storage tank is connected with a cloth bag powder collector lifting cylinder and a cloth bag powder collector dust chamber pulse valve group gas bag through a lifting cylinder gas source main pipe and a pulse gas source main pipe respectively, the lifting cylinder gas source main pipe and the pulse gas source main pipe are connected in parallel, the lifting cylinder gas source main pipe is communicated with the cloth bag powder collector lifting cylinder to provide a power gas source for controlling the cutting and connection of the cloth bag powder collector dust chamber gas-cleaning chamber and the cloth bag powder collector air chamber, the pulse gas source main pipe is communicated with the cloth bag powder collector dust chamber pulse valve group gas bag to provide a power ash removing gas source for the cloth bag powder collector, a pore plate flowmeter and a pneumatic cut-off valve are arranged on the pulse gas source main pipe, and a main exhaust fan for exhausting waste gas is arranged on the cloth bag powder collector air chamber to be connected. The stable powder collector operation device for the coal injection operation area is characterized in that a lifting cylinder air source hand valve, a first pressure reducing valve and a first flowmeter are arranged on the lifting cylinder air source main pipe. The stable powder collector operation device for the coal injection operation area is characterized in that the pulse air source main pipe is provided with a pulse air source hand valve, a second pressure reducing valve and a second flowmeter. The stable powder collector operation device for the coal injection operation area is characterized in that the air storage tank is provided with an air source pressure gauge. The stable powder collector operation device for the coal injection operation area is characterized in that a pipeline communicated with a powder collecting hopper of the cloth bag powder collector is further arranged on the pulse air source main pipe, and a nitrogen charging valve is arranged on the pipeline connected with the powder collecting hopper of the cloth bag powder collector. The stable powder collector operation device for the coal injection operation area is characterized in that the pneumatic cut-off valve is connected with the electromagnetic valve and the explosion-proof operation box. The utility model has the advantages that (1) the working efficiency is high, when the pulse valve fails and the nitrogen in the pulse valve group air bag leaks in a large amount, the nitrogen flow rises and the pressure drops, the pneumatic cut-off valve on the pulse air source pipeline automatically performs quick cut-off reaction, the lifting air cylinder is prevented from being unable to act, the lifting air cylinder pull rod and the large cover close the channel betwee