SU977059A1

SU977059A1 - Vibration screen

Info

Publication number: SU977059A1
Application number: SU813315408A
Authority: SU
Inventors: Игорь Андреевич Шуляк; Феликс Борисович Черкасский; Петр Семенович Рыжко; Василий Георгиевич Сансиев; Юрий Петрович Ненадкевич
Original assignee: Специальное конструкторско-технологическое бюро Института геотехнической механики АН УССР
Priority date: 1981-07-06
Filing date: 1981-07-06
Publication date: 1982-11-30

Description

(54) ВИБРАЦИОННЫЙ ГРОХОТ(54) VIBRATION SCREENING

Изобретение относитс к технике дл разделени сыпучих материалов по крупности и может найти применение в горной, химической и других отрасл х народного хоз йства.The invention relates to a technique for the separation of bulk materials by size and can be used in mining, chemical and other sectors of the national economy.

Известен вибрационный грохот с веерообразно расположенными ситами. В нем нижнее -сито снабжено дополнительными высокочастотными вибраторами 1 Недостатком такого грохота вл етс то, что в колебательное движение- приводитс вс конструкци короба , т.е. грохот не экономичен, а также требуетс дополнительна защита вибраторов нижнего сита.Known vibrating screen with fan-shaped sieves. In it, the lower sieve is equipped with additional high-frequency vibrators. 1 The disadvantage of such a rumble is that the whole construction of the box, i.e. the screen is not economical, and additional protection of the lower sieve vibrators is required.

Наиболее близким к предлагаемому по технической сущности и достигаемому результату вл етс вибрационный грохот, включающий короб с веерообразно расположенными в нем ситами и Отклон ющими роликами, установленными над каждым ситом, и виброприводы , установленные на коробе, снабженные тросами, сопр женными с ситами по нормали к их поверхности 2.The closest to the proposed technical essence and the achieved result is a vibrating screen, including a box with fan-shaped sieves and deflecting rollers installed in it, installed on each sieve, and vibrodrives mounted on the box, equipped with cables, conjugated with sieves normal to their surfaces 2.

Недостатком этого грохота вл етс неравномерна передача тросами вибраций на полотна сит по мере удалени от вибропри.воДа, вследствие чего полотна сит получаиот асимметричные колебани , что значительно снижает эффективность грохочени .The disadvantage of this screen is the uneven transmission of vibrating cables to the sieve webs as they move away from the vibrating filter. As a result, the sieve webs produce asymmetrical vibrations, which significantly reduces the screening efficiency.

Цель изобретени - повышение эффективности процесса грохочени путем обеспечени симметричных встр хивающих колебаний полотен сит.The purpose of the invention is to increase the efficiency of the screening process by providing symmetric shaking vibrations of the screen screens.

Поставленна цель достигаетс тем, что в В41брационном грохоте, включающем короб с веерообразно расположен 10 ными в нем ситами и отклон ю1Е.ими роликами , установленныкл над каждым ситом, и виброприводы, установленные на коробе, снабженные тросами, сопр женными с ситами по нормали к The goal is achieved by the fact that in a B41-banging screen, including a box with a fan-like screen, 10 screens are located in it and deflecting by using one of the rollers mounted on each screen and vibration drives mounted on the box, equipped with cables that are normal to the screens

15 их поверхности, в коробе установлены обводные ролики с чередованием с отклон ющими роликами и со смещением вдоль плоскрсти, сита, при этом тросы закреплены верхними концами в вибро20 приводах, а нижни D{ соединены с упругими элементами, которые закреплены 3 короба.15 of their surfaces, in a box, bypass rollers with alternation with deflecting rollers and displaced along the plane are installed, sieves, while cables are fixed with upper ends in vibro20 drives, and lower D {are connected with elastic elements, which are fixed with 3 ducts.

KpoNia того, упругие элементы выполнены в виде спиральных пружин.KpoNia addition, the elastic elements are made in the form of spiral springs.

2525

На чертеже схематично представлен грохот.The drawing is a schematic representation of the roar.

Claims

The vibrating screen consists of a duct 1 installed on a foundation in which 304jjH sieves are fixed fan-like. On the duct 1 there are vibration actuators 3 fitted with cables 4 conp Zhvnna vf with sieves 2 normal to their surface. Deflecting 5 rollers and bypass 6 rollers are installed in the box 1 with alternation between themselves and offset along the plane of the sieve 2. j In this case, the cables are fixed with the upper ends in the vibration drives 3, and the lower ones are connected with elastic elements made in the form of spiral strings | Zhin 1 , and tensioning device 8. Vibrating screen operates as follows. A: Smoke-through material enters the upper sieve 2 with the vibration actuators 3 turned on. From the vibration actuators, oscillations are transmitted through the cables 4 to all the screens simultaneously. Since the deflecting rollers 5 make it possible to lead the cables 4 to the screens 2 at equal intervals along their length, the cloth oscillates uniformly throughout their area. In addition, the screening material receives symmetrical shaking vibrations, according to the coordinated actions of the vibration drives 3 and the springs 7, to which the drive cables 4 are attached. Due to this interaction of the vibration drives 3 and the springs 7, the efficiency of the screening process and the material I11 intensively wakes up through the sieves and significantly increases moves on them. The use of the proposed vibrating screen allows to increase the efficiency of the screening process to ensure the symmetric shaking vibrations of the screens with the same parameters and at the same time reduce the energy consumption for screening the source material. Claim 1. Vibrating screen, including a box with fan-shaped sieves and deflecting rollers installed in it, above each sieve, and vibration drives mounted on the box, equipped with cables, coupled with sieves normal to their surface, characterized by that, in order to increase the efficiency of the screening process by providing symmetric shaking vibrations of the screen cloths, bypass rollers are interleaved with deflecting rollers and displaced along the screen plane, with that ropes are fixed to upper ends vibroprivody and bottom are connected with elastic elements, which are fixed to the box bottom. 2. Screen according to Clause 1, with reference to ayu yi and the fact that the elastic elements are made in the form of coil springs. Sources of information taken into account during the examination 1. USSR author's certificate 466055, cl. B 07 B 1/40, 1969.

2. Author's certificate of the USSR 722607, cl. B 07 B 1/40, 1978 (prototype).