SU923596A1

SU923596A1 - Centrifugal mill

Info

Publication number: SU923596A1
Application number: SU802941268A
Authority: SU
Inventors: Владлен Дмитриевич Барлет; Анатолий Иванович Пологович; Наталья Михайловна Кобыляцкая; Надежда Алексеевна Шевченко
Original assignee: Коммунарский горно-металлургический институт
Priority date: 1980-06-11
Filing date: 1980-06-11
Publication date: 1982-04-30

Description

II

Изобретение относитс к измельчительному оборудованию и может- быть использовано на горно-обогатительных предпри ти х черной и цветной металлургии, а также при переработке горнохимического сырь , строительных материалов, угл и кокса.The invention relates to grinding equipment and can be used in mining and processing enterprises of ferrous and nonferrous metallurgy, as well as in the processing of mining and chemical raw materials, building materials, coal and coke.

Известны мельницы с неподвижным вертикальным валом, несущим мелющие тела, прижимаемые центробежной силой к футерованной поверхности корпуса и размалывающие измельчаемый материал между рабочими поверхност ми мелющих тел в корпуса fij .Mills are known with a fixed vertical shaft carrying grinding bodies, which are pressed by centrifugal force to the lined surface of the body and grind the material to be ground between the working surfaces of the grinding bodies in the body fij.

Недостатками таких мельниц вл ютс мала производительность и невысока эффективность измельчени , а также большой износ рабочих инструментов (мелющих тел).The disadvantages of such mills are low productivity and low grinding efficiency, as well as high wear of working tools (grinding media).

Наиболее близкой к предлагаемой вл етс центробежна мельница, содержаща корпус с рабочим органом, выполненным в виде чашеобразного звена , укрепленного на вертикальном валу , и расположенного соосно с ним дополнительного конуса, загрузоцн: 1й и разгрузочный патрубки и привод 2 .Closest to the proposed is a centrifugal mill, comprising a housing with a working body, made in the form of a bowl-like link, mounted on a vertical shaft, and an additional cone aligned coaxially with it: load and discharge nozzles and drive 2.

Недостатком этой мельницы вл етс низка эффективность процесса измельчени .The disadvantage of this mill is the low efficiency of the grinding process.

Дель изобретени - повышение эффективности процесса измельчени .The invention is to increase the efficiency of the grinding process.

Claims

The goal is achieved by the fact that in a centrifugal mill comprising a body with a working body made in the form of a conical cup-shaped link, mounted on a vertical shaft, and an additional cone aligned coaxially with it, the loading and unloading nozzles and the drive, the additional cone is made with through loading openings M, is mounted motionless on the upper part of the body and with its apex facing the conical cup-shaped link, the additional grinding zone with its conical surfaces. The drawing shows the proposed centrifugal mill, the cut. The centrifugal mill consists of a housing 1, located vertically and fortified on the foundation. Inside the case there is a hollow cone 2 fastened to it, coaxial with which a rotating cone 3 is mounted, having a conical mash k in the upper part, made integral with the water shaft 5- The lower part of the cone is provided with a relief device 6 and a receiving hopper, and the outer working surface the inner movable cone and the working surface of the inner fixed cone are lined. Above the rotating cone 3 there is a stationary cone 7, equipped with a loading device 8 and pre-crushing chambers 9. The operation of the centrifugal eraser is carried out as follows. The material to be ground is fed into the device 8 for charging, from which it enters the pre-crushing chambers 9 under its own weight. Subsequent grinding is carried out in a working cavity formed by a fixed cone 7 and a conical cavity, where under the influence of centrifugal forces the material moves up to the periphery, and then under the action of its own weight, nocTy falls on the final grinding into a conical cavity formed by the turning cone fixed cone 2. The grinding product is discharged by means of the discharge device 6 into the receiving bin 10. The use of the design of the mill, improves the quality of the material being milled, lichivaet productivity and service life. Claims of the invention: A centrifugal mill, comprising a housing with a working body made in the form of a conical bowl-like link, mounted on a vertical shaft, and an additional cone aligned coaxially with it, loading and unloading nozzles and a drive, so that In order to improve the efficiency of the grinding process, an additional cone is made with through loading openings, is mounted stationary on the upper part of the body, and faces its tip to the conical cup-shaped link, forming horses with it eskimi surfaces additional grinding zone. Sources of information taken into account in the examination 1. USSR author's certificate fP 225676, cl. B 02 C 15/10, 19b2.

2. USSR author's certificate №, cl. B 02 S 7/08, 1975