Method and system for preventing furnace top equipment from being blocked

Abstract

The invention relates to a method and system for preventing furnace top equipment from being blocked. The method for preventing the furnace top equipment from being blocked comprises the following steps that: the acquisition image of crude fuel to be fed into the furnace top equipment is acquired; at least one material contained in the crude fuel in the acquired image is determined; the maximum size of the material is calculated, and whether the material is a large material or not is judged according to the maximum size of the material and a preset size value; and an alarm is given out according to a judgment result. The system for preventing the furnace top equipment from being blocked comprises acquisition equipment which is used for obtaining an acquired image, an alarm device, and processing equipment which is used for determining at least one material contained in crude fuel in the acquired image, calculating the maximum size of the material, judging whether the material is a large material or not according to the maximum size of the material and a preset size value, and controlling the alarm device to give an alarm according to a judgment result. According to the method and system for preventing the furnace top equipment from being blocked, whether large materials enter the furnace top equipment of a blast furnace or not can be monitored in real time, and therefore, the furnace top equipment is prevented from being blocked by the large materials.

Description

technical field [0001] The invention relates to the technical field of blast furnace production, in particular to a method and system for preventing blockage of furnace top equipment. Background technique [0002] Blast furnace production is a long process process. The raw fuel is first stored in the silo, and then discharged from the silo and transported to the intermediate hopper by a belt conveyor, and then discharged from the intermediate hopper to the main belt of the blast furnace. The raw fuel on the main belt of the blast furnace passes through the blast furnace. The furnace top equipment enters the blast furnace, specifically, the raw fuel enters the blast furnace from the central throat and the chute after passing through the gate valve of the batch tank of the blast furnace. [0003] In actual production, the average particle size of sinter in raw fuel is about 20mm, and the average particle size of coke is about 50mm. However, due to the long transportation proce...

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Problems solved by technology

[0004] Due to the existing 4000m 3 The diameter of the central throat of a high-grade blast furnace is about 70cm. If a large amount of raw material enters the top equipment of the blast furnace at the same time as these large materials also enter the top equipment of the blast furnace, it may cause blockage of the top equipment, resulting in The feeding is not smooth, or even the problem of not being able to feed

Once the top equipment of the blast furnace is blocked due to these large materials, it will cause the blast furnace to reduce the wind and decompression, and even cause the blast furnace to stop the wind. At this time, the furnace top equipment needs to be opened for processing. resulting in large economic losses

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