Centralized steam discharging device of water slag filtering tank and using method thereof

Abstract

The invention relates to a centralized steam discharging device of a water slag filtering tank and a using method thereof and belongs to the technical field of metallurgical industry. The device comprises a water slag filtering tank and a water slag tank steam discharging cylinder, wherein a steam collecting cover used for sealing is arranged at the upper part of the water slag filtering tank; a rectangular hole is formed in a position, close to the top of the water slag filtering tank, of the side wall of the water slag filtering tank; the rectangular hole is in sealed connection with a hole in the circumferential wall of the water slag tank steam discharging cylinder through a pipeline; the steam collecting cover is used for sealing the upper part of the water slag filtering tank in use; and water slag steam is formed in the water slag filtering tank, enters the pipeline through the rectangular hole in the side wall of the water slag filtering tank, and is finally discharged through the water slag tank steam discharging cylinder. Through the centralized steam discharging device of water slag filtering tank, the centralized discharging effect of the steam in the water slag filtering tank is improved on the premise of not reducing the effective volume of the water slag filtering tank and not reducing construction and operation costs.

Description

technical field [0001] The invention belongs to the technical field of the metallurgical industry, and relates to a concentrated steam discharge device for a water slag filter tank and a use method thereof. Background technique [0002] Modern blast furnace smelting production generally adopts water slag process, and high temperature furnace slag is washed with water to form water slag. In the slag treatment process of the bottom filtration method, the slag flows into the slag filter tank for slag-water separation treatment. After the slag enters the slag filter tank, steam will be generated in the slag filter tank due to the high water temperature. At present, most water slag filters are equipped with mobile steam collecting hoods to prevent the steam from overflowing when the water slag filter is receiving slag. Among them, some projects set round holes and corresponding steam exhaust pipes on the side wall of the water slag filter, and some projects set movable steam exh...

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Problems solved by technology

However, if a round hole is set on the side wall of the water slag filter, the effective volume of the filter will be directly reduced when the top surface of the water slag filter is at a certain height, which will bring some inconvenience to the production and operation of the water slag filter. ; If an active steam exhaust pipe interface is set on the mobile steam collecting hood, the poor sealing of the interface will directly affect the discharge speed and effect of steam in the water residue filter. At the same time, there is a possibility of water leakage at the interface. Corrosion of on-site equipment and impact on the surrounding environment; if a fan is added to the steam exhaust pipe in order to enhance the suction of the steam exhaust pipe, it will increase the construction and operation costs

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