SU1375600A1

SU1375600A1 - Method of granulating glass

Info

Publication number: SU1375600A1
Application number: SU864047374A
Authority: SU
Inventors: Виктор Григорьевич Урчукин
Original assignee: Всесоюзный Научно-Исследовательский Институт Механизации Труда В Черной Металлургии
Priority date: 1986-02-15
Filing date: 1986-02-15
Publication date: 1988-02-23

Abstract

Изобретение относитс к черной металлургии, а также промышленности строительных материалов и может быть использовано дл переработки металлургических шлаков. С целью повышени производительности подают струю расплава шлака в зазор между барабанами, вращающимис в противоположном направлении, и одновременно с двух сторон в зазор между струей расплава и поверхност ми валков подают охлажденный до твердого состо ни шлак в количестве 20-25% от общей подачи. Производительность уве- личиваетс в 1,5-2 раза. 1 ил.The invention relates to ferrous metallurgy as well as the building materials industry and can be used for the processing of metallurgical slags. In order to increase productivity, a stream of molten slag is fed into the gap between the drums rotating in the opposite direction, and simultaneously from two sides, slag cooled to solid state is fed into the gap between the melt stream and the roll surfaces in the amount of 20-25% of the total feed. Productivity increases 1.5-2 times. 1 il.

Description

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О)ABOUT)

Изобретение относитс к черной металлургии, а также промышленности строительных материалов и может быть использовано дл переработки предпочтительно металлургических шлаков.The invention relates to ferrous metallurgy as well as the building materials industry and can be used to process preferably metallurgical slags.

Цель изобретени - повышение производительности .The purpose of the invention is to increase productivity.

На чертеже показана установка дл осуществлени способа.The drawing shows an installation for carrying out the method.

Расплав шлака из емкости 1 подают на барабаны 2. Часть расплава шлака в количестве 50-80% от общего расхода шлака, подаваемого в зону междуThe slag melt from the tank 1 is fed to the drums 2. A portion of the slag melt in the amount of 50-80% of the total consumption of slag supplied to the zone between

Пример. Жидким шлаком заполн ют 10-тонный емкость-копильник на 1/3 его объема. Example. Liquid slag is filled with a 10-ton storage container for 1/3 of its volume.

В процессе заполнени копильника барабаны 2 вращаютс в противоположные стороны (двигатель Д31, 8 кВт, диаметр барабанов 1400 мм). Расплав шлака через сливную щель длиной 800 мм и шириной 30 мм сливаетс в зев между барабаном 2. Часть расплава - 60 от общего расхода - проходит через зазор между барабанами (ширина зазора составл ет 20 мм), аIn the process of filling the storage chamber, the drums 2 rotate in opposite directions (D31 engine, 8 kW, 1400 mm diameter drums). Slag melt through a drain slot 800 mm long and 30 mm wide merges into the shed between the drum 2. A part of the melt — 60 of the total flow — passes through the gap between the drums (the width of the gap is 20 mm), and

барабанами, проходит через зазор меж- 15 остальна часть попадает за счет враду барабанами, а остальна (20-50%) за счет, вр.зщени их противоположно друг другу охлаждаетс на поверхност х барабанов до температуры на 300-350°С ниже температуры плав- лени шлака. Величина толщины сло пшака на барабанах регулируетс отсе кател ми 3 и может сост.авл ть 7-15 мм Охлажденный до твердого состо ни шлак 4 через направл ющие лотки 5, установленные под углом естественного откоса, подают на охлаждающие (формующие) валки 6 и на струю расплава шлака 7 дл образовани вокруг струи постели из твердого шлака. drums, passes through the inter-15 gap, the rest goes through the drums, and the rest (20-50%) at the expense of which, opposite to each other, cools down on the surfaces of the drums to a temperature of 300-350 ° C below the melt temperature - laziness of slag. The thickness of the pshak layer on the drums is controlled by the compartments 3 and can be 7-15 mm. The slag 4, cooled to a solid state, is guided through guide trays 5 installed at an angle of repose, to the cooling rolls 6 and molten slag jet 7 to form a solid slag bed around the jet.

Лотки 5 установлены на шарнирах 8 и имеют окна с крьш1ками 9 дл i сброса избытка шлака в бункера 10.The trays 5 are mounted on the hinges 8 and have windows with holes 9 for i dumping excess slag into the hoppers 10.

Расплав шлака,проход через зазор между барабанами 2 и формировател ми 11 потока, попадает в зазор между валками 6 и шлаком 4.Slag melt, the passage through the gap between the drums 2 and the flow former 11, falls into the gap between the rolls 6 and slag 4.

За счет отбора тепла из расплава охлажденным шлаком создаютс благопри тные услови дл увеличени зазора между валками 6, т.е. дл увеличени пропускной способности балков 6 увеличение скорости их враще- 5 600°С, а в валках 13 производ т дроб- ни . В валках 6 частично формируетс ление шлака. Производительность при полоса из шлака, KOTOpyjo направл ют в валки 12, где происходит дополниуказанных параметрах 7-12 т/ч.By extracting heat from the melt with cooled slag, favorable conditions are created to increase the gap between the rolls 6, i.e. to increase the throughput of the beams 6, an increase in the speed of their rotation is 5,600 ° C, and fractions are made in the rollers 13. In the rolls 6, slag formation is partially formed. The capacity with a slag strip, KOTOpyjo, is directed to the rolls 12, where the additional parameters of 7-12 t / h occur.

Claims

The method allows to increase productivity by 1.5-2 times. In addition, the use of a bed made of hard slag increases the durability of the rolls. Formula from. bratis

Body cooling to the surface temperature of 500-600 С and sealing the strip. The formed strip is fed to the crushing rolls 13. To prevent slag from sticking to the drums 2 and it falls into the slag stream.

At the exit of the drum, there is a shutoff of the flow of molten slag

The helixes 14. The distribution and consumption of cooled slag fed into the zones between the jet and the rolls 7 is controlled by the formers 15.

the gap between the drums rotating in the opposite direction, cladding and grinding, distinguished by the fact that

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The drum parts are at a speed of 6 rpm, and the thickness of the slag layer on the surface of the drums is 10 mm and is cooled on their surface. At the same time, the slag consumption from the digger is equal to the sum of the slag consumption passing through the gap, and the flow rate when slag is collected by the drums. The slag 4 cooled at the drums 2 to 850-900 ° C falls into the zones between the surfaces of the jet of molten slag and the surfaces of the rolls 6 to form a strip. Roller rotation speed 30 rpm, rolls 1200 mm. To eliminate the critical accumulation of slag over the gap between the rollers, the gap is established with a width determined by the speed of rotation of the rollers and the consumption of liquid and solid slags, which is 26 mm. In order to prevent critical accumulation, the flow of cooled slag over the gap is controlled by guides 5 with windows with lids 9 in order to discharge the excess donkey. The formed slag strip is directed-. Rollers 12 are successively arranged in a vertical plane, where the slag strip is forced to a surface temperature of 500-600 ° C, and slag crushing is performed in rollers 13. Performance at

The specified parameters are 7-12 t / h.

The slag granulation method, including the gap between the drums rotating in the opposite direction, is fine and grinding, characterized in that, in order to increase productivity, from both sides simultaneously with the melt jet feed into the gap between it and the roll surfaces serves cooled to solid state no slag in the amount of 20-50% of the total iodachi.

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