SU1599329A1 - Installation for producing dry granulated slag - Google Patents

Abstract

The invention relates to metallurgy, in particular to the processing of molten slag into granulated slag. The purpose of the invention is to reduce the size, capital and operating costs. The plant for receiving dry granulated slag contains a chute for melt supply, a water-cooled drum granulator with a casing, a receiving hopper with a funnel, a dewatering conveyor, a circulating water chamber with a level regulator and pumping means, a pipe for the removal of steam. The receiving hopper is connected to the chamber by a gravity-flowing slag for inclined channel. The casing of the granulator is built into the receiving hopper and connected to a funnel, which directs the slag to an inclined submersible partly immersed in water and a dewatering conveyor. 2 Il.

Description

This invention relates to metallurgy, in particular to the processing of molten slag into granulated slag.

The purpose of the invention is to reduce the size, capital and operating costs.

FIG. 1 shows the installation, longitudinal section; in fig. 2 is a section A-A in FIG.

The plant for receiving dry granulated slag contains a chute 1 for supplying the melt, a water-cooled drum granulator 2 with a casing 3 connected to a funnel 4, a receiving hopper 5, a dewatering conveyor 6, a circulating water chamber 7 with a level regulator and pumping means 8 (by pump or airlift ) and pipe 9

steam outlet The receiving hopper 5 is connected by an inclined channel 10 to the chamber 7 of circulating water. The casing 3 of the granulator is equipped with collectors with nozzles for washing and cooling the granulator, is built into the receiving bin 5 and connected (executed at the same time) with a funnel that guides the slag to the conveyor 6 consisting of boxes with mesh bottoms and mounted obliquely with partial immersion in water .

The installation works as follows.

In the initial state, the receiving bin 5 and the circulating water chamber 7 are filled with water up to the level set by the regulator. Before discharge of the melt, granulator torus 2 is put into operation,

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fan 6 and pump 8 supplying water to the hydraulic washing of the casing 3 and to the cooling of the granulator 2.

The slag discharged to the granulation along chute 1 enters the granulator torus 2, crushed by its blades, and in the form of droplets over the space limited by the casing 3 and funnel 4 enters the conveyor 6, passes through a short-term cooling in a layer of water.

When the conveyor boxes 6 move, the slag is removed from the water, dehydrated, dried due to its own residual physical heat, and when the boxes are turned on the drive sprocket, it goes to a warehouse or to devices for subsequent transportation.

The vapor generated during granulation is removed through pipe 9 to the atmosphere. Non-evaporating part of the water received for cooling and water wash from the receiving bin 5, together with possible slag inclusions by gravity through channel 10, returns to the chamber 7 of the circulating water at the inlet of pump 8 or airlift.

The plant for the production of dry granulated slag can be used near blast furnaces as well. and beyond when transporting molten slag in ladles.

The effect of the installation is to reduce the size, capital and operating costs, as well as to increase the reliability of work.

Claims (1)

Formula invented the shadows A plant for the production of dry slag, containing a chute for melt supply, a water-cooled drum granulator with a casing, a receiving hopper with a pipe for the removal of steam and a funnel installed above the scaffolding conveyor, a recycled water chamber with a level regulator and pumping means, about and that with, that, with. in order to reduce overall size, capital and operational costs (), the receiving bunker is connected to the circulating water chamber by an inclined channel, the a-granulator is built into the funnel. t A F {P. A- / I Pus.2