SU687338A1

SU687338A1 - Recharging shaft of rotary furnace

Info

Publication number: SU687338A1
Application number: SU782585829A
Authority: SU
Inventors: Валентин Михайлович Николаев; Геннадий Сергеевич Маркетов; Василий Васильевич Мигунов; Наиль Закирович Насыров; Виктор Николаевич Голубев; Петр Васильевич Гуков
Original assignee: Предприятие П/Я А-7281
Priority date: 1978-03-01
Filing date: 1978-03-01
Publication date: 1979-09-25

Description

1one

Изобретение относитс к технике получени спека в печах и может быть использовано в глиноземной, цементной, x«мической и огнеупорной промышленност х.The invention relates to a technique for producing a cake in furnaces and can be used in the alumina, cement, x ' and refractory industries.

Известна пересьтна шахта вращающейс печи спекани , представл юща собой в сечении квадрат, футерованный ог неупорным кирпичом, в нижней части ее установлен в горизонтальном положении чугунный футерова шьгй лоток. Один торец лотка закрыт, другой открыт и установлен в холодильнике 1. Недостатком такой пересыпной шахты ЛВЛ5потс большие потери тепла со спеком и недостаточна надежность.The circular shaft of the rotary kiln of sintering is known, which is a square in cross section, lined with a fireproof brick, in the lower part of it a cast-iron lining stitch tray is installed in a horizontal position. One end of the tray is closed, the other is open and installed in the refrigerator 1. The disadvantage of such a pouring shaft, LVL5pots, is high heat loss with specs and insufficient reliability.

Наиболее близкой по технической сущности и достигаемому результату к изобретению вл етс пересыпна шахта врд- щаюшейс печи, содержаща размещенную внутри нее вертикальную перегородку, образующую со стенками шахты камеры дл агломерата и мелкого материала, продольно оребренньге тепловые трубы с ко.плекторами и разгрузочный лоток 2. The closest in technical essence and the achieved result to the invention is the pouring shaft of the internal furnace, containing a vertical partition placed inside it, forming with the walls of the shaft a chamber for sinter and fine material, longitudinally ribbed heat pipes with co-collectors and a discharge chute 2.

Полки из тепловых труб установлены под углом к горизонту по ходу спека, составл ющим 1,2-2 угла естественного откоса материала. Недостатком этой пересыпной шахты вл етс низка степень охлаждени спека.Regiments of heat pipes are installed at an angle to the horizon along the cake, constituting 1.2–2 of the angle of repose of the material. The disadvantage of this pouring mine is the low degree of cooling of the cake.

Целью изобретени вл етс повьаиение степени охлаждени материала.The aim of the invention is to increase the degree of cooling of the material.

Это достигаетс тем, что пересьшна шахта вращающейс печи, содержаща размещенную внутри нее вертикальную перегородку образующую со стенками шахты камеры дл агломерата и мелкого материала продольно оребренные тепловые трубы с коллекторами и разгрузочный лоTtiK , снабжена установленноГ; в нижней части камеры дл мелкого материала решеткой кип щего сло , а стенки щахты, вертикальна перегородка и лоток выполнены из тепловых труб.This is achieved by the fact that the rotary shaft of the rotary kiln, containing a vertical partition placed inside it, which forms longitudinally ribbed heat pipes with collectors and a discharge tube TtiK with the shaft walls of the chamber for sinter and fine material; in the lower part of the chamber for fine material, the fluidized bed lattice, and the walls of the bed, the vertical partition and the tray are made of heat pipes.

Claims

The drawing shows a proposed rotary kiln shaft, built in conjunction with a cooler, common 6 and d. 368 The device consists of a stove I, a cooler 2, an upper section of heat pipes 3, 4 fluidized bed grids, cooled manifolds 5, a fan 6, a discharge port 7, an agglomerate chamber 8, a heat pipe tray 9, a heat pipe partition D, heat pipes 11, a chamber 12 for cooling fine material. To the boiler 5, the pipes for supply and removal of steam are supplied. All heat pipes are filled with coolant, for example, titanium chloride. The furnace shaft in the furnace works in the perfect manner. The specter emerges from the furnace 1, waking up between the heat pipes 3, transfers some of the heat to them and enters the chamber 12 to cool the fine material. The specter enters the colossal layer created by the grating of grid 4 and: torus 6. In the fluidized bed, the heat exchange between the cold air supplied under the grate is passed. 4 by fan 6, and fine material, after cooling, drops through discharge 7 to tray 9 and is transported to refrigerator 2. Specs heat the walls of mine 11, discharged from the heat pipes, and the heat carrier, for example, tetrafles to raw titanium, which in the form of the steam enters the collectors 5, they are condensed by the flow of water through the wall and transfers heat to the water, turning it into a barge, which is then used for technological or energy fields. Relatively large agglomerates, rolling down the lattice from heat pipes 3, fall into chamber 8 for a | Glomerate in further along tray 9, they are transported for 8 seconds to refrigerator 2 for final cooling. The use of heat pipes connected to each other and forming the body of the pouring chamber of the sintering furnace 1, as well as the use of a fluidized bed to increase the time of contact of the material with cold air will reduce heat loss from the spec, temperature of the specimen, temperature of the walls of the transfer device and heat loss the atmosphere. Reducing the temperature of the walls of the mine 11 will increase the reliability of the structure and significantly increase its service life. The formula of the invention for the casting chamber of a rotary kiln furnace, containing a partition, forming with the shaft walls of a chamber for sinter and fine material, longitudinally heated heat pipes with headers and a discharge chute, which is equipped with the lower part of the chamber for fine material with a fluidized-bed grating, and the walls of the shaft, the vertical partition and the tray are made of heat pipes. Sources of information taken to the attendees during the examination 1. Khodorov EI Cement industry kilns. L., Stroyizdat, 1968, p. 51.

2.Certificate of application N 2458758/22-О2, cl. F 27 J) 3 / 1O, 1977.