SU1423517A1 - Installation for granulating and dehydrating slag - Google Patents

Abstract

The invention relates to the field of metallurgy, in particular to the processing of molten slag into granulated slag from electric steel-smelting, ferroalloy and other smelting furnaces with a small (up to 10 tons) slag output for smelting. The purpose of the invention is to simplify the installation, reduce capital and operating costs. The slag granulation and dewatering unit consists of a melt channel 1, a granulator 2 encased in a casing 3 with collectors and jetting nozzles, a dehydrator 4, a water collector 5 with rollers 6, a circulating water system 7 and a steam removal system 8. The casing 3 and the channels of the steam removal system 8 are provided with a common flange, to which a dehydration 4 adjoins the counter flange, made in the form of a portable box with a steam collector and a sloping perforated bottom. 2 Il.

Description

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The invention relates to metallurgy, in particular to the processing of molten slag into granulated slag of electric gates, ferroalloy and other metallurgical furnaces with a small (up to 10 tons) output of smelt for smelting.

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

In the unit for granulation and obezvoost. The opening of the valve on the pressure part of the system 7 is supplied with water to cool the granulator 2 and to flush the housing 3, the granulator 2 is put into operation and the valve on the lower branch pipe of the wastewater system 7 closes. Slag melt from the furnace enters by gravity through chute 1, crushed by blows of the blades of granulator 2 and, in the form of particles, the spread of which is limited by casing 3, slag rejection, which contains the chute, JQ flows into a dehydrator 4. A granulator with a casing, dehydrator, and a drain valve are formed , the circulating water system and steam removal, the sump is equipped with rollers, and the dehydrator is made in the form of a portable box with a steam collector and tilted when the slag is cooled, the steam is caught by the steam collector and, according to system 8, exa. The melt particles undergo final solidification and precipitate the dehydrator box 4,

perforated bottom, installed-15 and excess water overflows on the upper

pipe in the system 7 recycled water. After the drain has been completed, the granulator tor 2 stops, the valve on the pressure section closes and the valve on the box opens and allows p to be transported. the waste part of the system 7 recycled water,

 - providing water flow through perforation

bottoms and dewatering of slag. Before the next melt discharge to the granulation, the box of the dehydrator 4 is taken up by a crane, the dehydrated granite slag is poured onto

it is a ynpoiiiaei installation, reduces the capital-25 warehouse or in a wagon for transferring to the catchment container with rollers with a connection to the granulator casing and the steam removal system.

Perform dewatering as a portable

 across the workshop with existing crane ;; the construction of conveyors, and the headers of the catchment box and the inclined bottom of the box provide for the sealing of the installation and the organized mu- dous steam outside the workshop. Everything

bodies, and the box returns to the rollers 6 of the sump 5 for the next slag intake: dewatering it.

j n. | uata ionnye costs about j in 2.raz.

On (J3Hi I the installation is shown, top view; i in Fig. 2 - section A-A in Fig. 1.

- Installation for granulation and dehydration; slag vani consists of a melt channel 1,; granulator 2, closed in housing 3 with collectors and nozzles of hydraulic washing, drainer 4, collector 5 with rollers 6, I of system 7 of recycled water and system 8 of I –– water of steam. The casing 3 and the channels of the system 8 of the steam outlet are provided with a common flange to which; rum mating flange adjoins dehydrator 4, made in the form of a transfer; No boxes with steam collector and inclined

A plant for the granulation and dewatering of slag containing a melt chute, a pelletizer with a casing, a dehydrator with a perforated, a water collector, a system of circulating water and a steam outlet, an otliperforated bottom.

The installation works as follows, in order to simplify the operation, reduce capital and operation. Before the slag is discharged, the dewatering unit has 4 operational costs, the catchment basin is equipped with a crane on the rollers 6, with catchment units, and the drying unit is made in the form of peak 5. Due to the inclination of the bottom of the box and the portable box with the steam collector and rolls, the dehydrator 4 flange.m is clamped. The bottom plate mounted on the rollers is fed to the flange of the casing 3 and channels of the water collector system 45 adjacent to the casing gra - we are 8 couples a, providing a sealed torus and vapor recovery system.

ness The opening of the valve on the pressure part of the system 7 is supplied with water to cool the granulator 2 and to flush the housing 3, the granulator 2 is put into operation and the valve on the lower branch pipe of the wastewater system 7 closes. Slag melt from the furnace flows by gravity through chute 1, crushed by blows of the blades of granulator 2 and in the form of particles, the spread of which is limited by casing 3, is withdrawn into the dehydrator 4. After cooling the slag, steam is caught by the steam collector and sys tem 8 is removed outside the workshop. . The melt particles undergo final solidification and precipitate the dehydrator box 4,

and excess water is poured over the top

a warehouse or a wagon for transfer to consumers, and the box is returned to the rollers 6 of the sump 5 for the next slag intake: dewatering it.

Before, the unit for the granulation and dewatering of slag can be placed near electric steel-smelting, ferroalloy and other metallurgical furnaces with a small (up to 10 tons) slag output for smelting.

Claims (1)

Invention Formula Installation for granulation and dewatering of slag containing melt chute, pelletizer with casing, perforated dehydrator, water collector, circulating water system and steam removal,