An electric furnace slag water purification device

Abstract

The invention discloses an electric furnace slag water purifying device. Wherein, the electric furnace slag water purifying device includes a main casing, a crushing cooling unit, a heat exchange unit and a dehydration unit, and has a compact, simple and reliable structure. Among them, the main shell has a water cavity and a main feed port below the liquid level. The crushing and cooling unit crushes and cools the liquid steel slag from the main feed port. Since the crushing and cooling process is below the liquid level, the water vapor can be effectively controlled In addition, the heat exchange unit controls the water temperature of the water cavity to further control the generation of steam; the dehydration unit dehydrates the water quenched slag deposited at the bottom of the water cavity to obtain dehydrated finished steel slag. Thus, the generation of water vapor can be effectively reduced, thereby achieving the goal of water saving and emission reduction.

Description

technical field [0001] The invention relates to steel slag treatment technology, in particular to an electric furnace slag water purifying device. Background technique [0002] As my country's steel production increases year by year, the production of steel slag also increases. Discarding steel slag not only causes waste of metal iron resources, but also causes environmental pollution. The random accumulation of steel slag will not only occupy a lot of land resources, but also cause damage to the surrounding soil and water system. [0003] At present, there are many ways to treat high temperature liquid electric furnace slag, such as waste slag process, water quenching process before furnace, tipping tank-pool process, etc. The slag waste process is to directly pour high-temperature liquid electric furnace slag into the slag yard, and then use water to cool it in the slag yard. This process occupies a large area of ​​land, has poor labor conditions, long treatment periods,...

AI Technical Summary

Problems solved by technology

The waste slag process is to pour high-temperature liquid electric furnace slag directly into the slag dump, and draw water to cool it in the slag dump. This process occupies a large area of ​​land, poor working conditions, long treatment cycle, and serious environmental pollution; The quenching process is to install a water quenching device in front of the electric furnace. The water quenching device is equipped with a funnel, a slag chute and a water spray pipe. When the electric furnace slag is discharged, the device is hung under the operating platform of the electric furnace. Heat exchange with water in the tank for water quenching. After water quenching, the electric furnace slag is flushed into the slag flushing pool in front of the furnace. This process cannot stably control the flow of liquid slag, and small explosions will occur, and the steam emission is large. Greater impact

The tipping tank-water pool process is to pour the liquid high-temperature electric furnace slag in the steel drum into the slag tank on the automatic slag dumping vehicle, and the slag truck automatically drives to the water quenching pool outside the workshop, and the slag tank is tipped over for water quenching. The process has a high degree of automation, but the working area is in an open space, the steam discharge is large, and the water consumption is high

Images