SU948434A1

SU948434A1 - Ore grinding mill sizing trommel

Info

Publication number: SU948434A1
Application number: SU802907284A
Authority: SU
Inventors: Юрий Петрович Кириленко; Александр Кузьмич Захаров
Original assignee: за вители
Priority date: 1980-04-07
Filing date: 1980-04-07
Publication date: 1982-08-07

Description

Изобретение относитс к устройствам дл классификации слива рудоразмольных мельниц и может быть использовано в горнорудной промышленности.The invention relates to devices for classifying the discharge of ore grinding mills and can be used in the mining industry.

Известна рудоразмольных мельниц , 1, устанавливаема в разгрузочной цапфе мельницы дл разделени выход щего из нее материала на три продукта: слив, надрешетный продукт - крупный класс (рудна гал ), промежуточный по крупности продукт между сливом и нгщрешетным продуктом. Промежуточный продукт возвращаетс обратно в мельницу с помощью спирали и улиткового питател .An ore grinding mill, 1, is installed in the discharge point of the mill to separate the material coming out of it into three products: the drain, the oversize product is a large class (ore gal), an intermediate product by size between the drain and the sieve product. The intermediate product is returned to the mill using a helix and cochlear feeder.

Недостатками такой бутары вл ютс низка эффективность гидравлической классификации из-за перемешивани спиралью пульпы в зоне классификации , а также невозможность регулировани выпуска галки из мельницы и низка ремонтопригодность конструкции, так как элементы бутары размещаютс в разгрузочной цапфе.The disadvantages of such butare are the low efficiency of the hydraulic classification due to the mixing of pulp spiral in the classification zone, as well as the impossibility of controlling the output of the daws from the mill and the maintainability of the design is low, since the butare elements are located in the discharge axle.

Наиболее близкой к предлагаемой бутаре рудоразмольной мельницы вл етс бутара рудоразмольной мельницы , содержаща конический корпус, элеваторное колесо с лифтёрами и разгрузочными карманами, коническийClosest to the proposed butare of an ore grinding mill is a butara of a mining mill containing a conical case, an elevator wheel with elevators and discharge pockets, a conical

раструб дл возврата крупных кусков руды в мельницу и разгрузочную течку Г2..bell for returning large pieces of ore to the mill and discharge chute G2 ..

Така бутара не обеспечивает регулировани выдачи крупных классов, что снижает эффективности, классификации .Such a butara does not provide for the regulation of the distribution of large classes, which reduces the efficiency of classification.

Цель изобретени - обеспечение регулируемого выпуска крупнокускового материала из мельницы.The purpose of the invention is to provide a controlled release of lumpy material from the mill.

Дл достижени цели в бутаре ру-. доразмольной мельницы, содержащей конический корпус, элеваторное колесо с лифтерами и разгрузочными карманами , конический раструб дл возврата крупных кусков руды в мельницу ,и разгрузочную течку, смонтировано цилиндроконическое решето, внутренн полость которого соединена с частью разгрузочных карманов элеваторного колеса.To achieve the goal in a butare ru. pre-grinding mill containing a conical case, an elevator wheel with elevators and unloading pockets, a conical socket to return large pieces of ore to the mill, and an unloading chute mounted cylindrical conic sieve, the internal cavity of which is connected to a part of the unloading pockets of the elevator wheel.

На разгрузочной течке может быть смонтирован шибер.On the discharge chute can be mounted gate.

На фиг. 1 изображена бутара, ра рез} на фиг. 2 - разрез А-А фиг. 1.FIG. 1 shows a butara, sectioned in FIG. 2 - section A-A of FIG. one.

Claims

The Butara contains a conical socket 1, a conical case 2 to which the elevator wheel 3 with elevator lifters 4 is rigidly attached. The elevator wheel has discharge pockets 5 for supplying lumpy material to the inside of the conical socket and to the inside of the sieve b with helix 7. Butara is attached to the discharge outlet of the mill with the help of flange 8. To supply the entire ghali back to the mill on the chute 9, a gate 10 is installed. The material from the mill is discharged to the discharge port. Next, the pulp enters the conical case. Lumpy ore fractions from the pulp are deposited in the space between the elevator wheel lifters, as well as on the wall of the conical case. The fine fractions of the solid phase of the pulp are removed from the bottles with the discharge. As the butare rotates together with the mill, the lumpy material deposited on the wall of the conical body moves due to the slope of the wall to the elevator wheel and fills the space between the elevators. Next, the lumpy material is lifted upwards by the lifters, and part of it is discharged into a conical socket and then inside the mill. Another part of the lifters unloads the material inside the sieve. The threaded product is coiled to the discharge end and fed to the chute. The undersize sieve product enters the pulp located in the conical housing, settles on the wall of the cone and then flows along the Inclined wall to the elevator wheel. In order to completely stop or regulate the delivery of lumpy overalls, the days of ore are used with a gate, by means of which the oversize product can be fully or partially wrapped in a pulp in a conical case and then discharged into a conical socket by means of an elevator wheel. Butara can work as an apparatus for pre-classification before a classifier or as a self-classifying apparatus. The classification efficiency in the proposed butare is 10% higher than in the well-known 2. Claim 1. Butara of the ore grinding mill, comprising a conical case, an elevator wheel with elevators and unloading pockets, a tapered socket for returning large pieces of ore to the mill and an unloading diverter By the fact that, in order to ensure the controlled release of lumpy material from the mill, a cylindrical sieve is mounted inside the container, the internal cavity of which is connected to a part of the discharge pockets. 2. The container according to claim 1, characterized in that a gate is mounted on the discharge chute. Sources of information taken into account during the examination 1. USSR author's certificate 582830, cl. B 02 C 17/18, 1975.

2. USSR author's certificate according to the application 2887507 / 29-33, cl. B 02 C 17/18, 20.02.80 (prototype)