Double-station LF refining furnace water-cooled furnace cover water quantity control system and control method

Abstract

The invention relates to a double-station LF refining furnace water-cooled furnace cover water quantity control system and a control method. A water inlet main pipe is connected with an A-station water-cooled furnace cover and a B-station water-cooled furnace cover through two main water supply pipes correspondingly, each main water supply pipe is connected with an auxiliary adjusting water pipe in parallel, and an adjusting valve is arranged on each auxiliary adjusting water pipe. The A-station water-cooled furnace cover and the B-station water-cooled furnace cover are connected with a water return main pipe through a plurality of water return branch pipes correspondingly, a return water temperature detection sensor is arranged on each water return branch pipe, and the return water temperature detection sensors are connected with a PLC. No adjusting valve is installed on the corresponding main water supply pipe of each furnace cover, so that the safe water supply is ensured, and the phenomenon that the furnace covers are damaged after the water supply stops due to the misoperation is avoided. The adjusting valves are installed on the auxiliary adjusting water pipes, and therefore the total flow of cooling water can be reduced, the situation that each station water-cooled furnace cover can be better cooled in the smelting process is guaranteed under the condition of the same total water quantity, and the service life of each refining water-cooled furnace cover is substantially prolonged.

Description

technical field [0001] The invention belongs to the technical field of metallurgical equipment, and in particular relates to a water volume control system and a control method for a water-cooled furnace cover of a double-station LF refining furnace. Background technique [0002] At present, the water-cooled furnace cover of the double-station LF refining furnace in iron and steel enterprises is connected by a main water inlet pipe to two main water supply pipes to supply water to the water-cooled furnace cover of the two-station refining furnace respectively, and the distribution cannot be dynamically adjusted. The required cooling water volume It is twice the cooling water volume of a single furnace cover, which requires a large amount of water in the water supply system and high energy consumption; since the water-cooled furnace cover of the double-station LF refining furnace cannot be in the highest temperature state of smelting at the same time, the individual water suppl...

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Problems solved by technology

[0003] Aiming at the problems of the existing dual-station LF refining water-cooled integral furnace cover with large cooling water volume, insufficient water supply, unreasonable water distribution between the dual-stations, and inability to safely and dynamically adjust the problem, the purpose of the present invention is to provide a dual-station LF refining furnace water-cooled Furnace cover water volume control system and control method

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