Discharging and dedusting equipment for blast furnace ore tank and dedusting method thereof

Abstract

The invention relates to the technical field of discharging and dedusting of bulk materials, in particular to discharging and dedusting equipment for a blast furnace ore tank and a dedusting method thereof. The dedusting equipment comprises a central control room, dustproof equipment of a mobile discharging car and dustproof equipment of a mobile vacuum sweeper, wherein the central control room is connected with the dustproof equipment of the mobile discharging car and the dustproof equipment of the mobile vacuum sweeper through cables; and the dustproof equipment of the mobile discharging car is connected with the dustproof equipment of the mobile vacuum sweeper through a cable and a dust suction pipe. A dustproof method is a dustproof method of the mobile discharging car in which the mobile discharging car and a whole adhesive tape are used for sealing, or is a dustproof method of the mobile vacuum sweeper in which the mobile vacuum sweeper and a lapped adhesive tape are used for sealing. The discharging and dedusting equipment for the blast furnace ore tank and the dedusting method thereof ensure energy conservation and emission reduction when the blast furnace ore tank discharges, are convenient for realizing automatic control, increase operation efficiency of equipment, and improve operating environment of workers.

Description

technical field [0001] The invention relates to the technical field of unloading and dedusting of bulk materials, in particular to a blast furnace ore tank unloading and dedusting equipment and a dedusting method thereof. Background technique [0002] At present, most of the processes adopted by the ventilation and dust removal system on the blast furnace mine trough in iron and steel enterprises are to install a dust collection hood on the side of each mine trough, and set an electric valve behind each dust collection hood, and the electric valve and the trough The loading and unloading trucks are interlocked. When the unloading truck is unloading in a trough, the electric valve of the trough will automatically open, and the dust-laden airflow of the trough will be sucked away to prevent the dust from escaping from the discharge port and protect the environment. There are the following problems in this control method: 1) each mine tank is provided with a dust collection cov...

AI Technical Summary

Problems solved by technology

This control method has the following problems: 1) Each mine tank is provided with a dust collection cover and an electric valve, and the opening of the valve is interlocked with the unloading car

The unloading truck runs frequently, resulting in frequent opening and closing of the valve

Due to the high hardness of sinter dust, large dust particle size and specific gravity, and the dust has a certain degree of cohesiveness, frequent opening and closing often leads to failure of the valve, which cannot be opened and closed normally.

In this way, the valve that should be closed cannot be fully closed

Multiple valves are opened at the same time, so that the air volume that should be concentrated in the dust collection hood of the controlled hopper is distributed to the dust collection hoods of multiple uncontrolled hoppers. The air volume of the dust suction hood of the controlled hopper is relatively reduced, and the discharge cannot be All the dust raised during the operation will be sucked away, which affects the collection of dust at the discharge point; the air volume of the dust collection hood is relatively reduced, resulting in a sharp drop in the wind speed of the air duct behind the dust collection hood, and the dust deposits in the air duct, blocking the duct, causing the system No ventilation and dust suppression

2) Since the dust collection hood is far away from the dusting point, the trough is not tightly sealed, and the air leakage rate is high, the required air volume is relatively large, and it is difficult to achieve the desired effect with conventional air volume

Due to the above reasons, a large amount of dust escapes from the mine tank, and the dust on the mine tank seriously exceeds the standard

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