SU978953A1

SU978953A1 - Screen sieve

Info

Publication number: SU978953A1
Application number: SU802945585A
Authority: SU
Inventors: Валентин Никитич Потураев; Евгений Иванович Плохотнюк; Геннадий Казимирович Мацкевич; Владимир Алексеевич Ильин; Владимир Андреевич Гончаренко; Давид Ефимович Борохович; Сергей Люсьенович Щербина
Original assignee: Днепропетровский Ордена Трудового Красного Знамени Горный Институт Им.Артема
Priority date: 1980-04-30
Filing date: 1980-04-30
Publication date: 1982-12-07

Description

(5) СИТО ГРОХОТА(5) THRESHOLD

1one

Изобретение относитс к горной промышленности, в частности, при классификации сыпучих материалов, имеющих повышенную влажность.The invention relates to the mining industry, in particular, in the classification of bulk materials with high humidity.

Известно сито грохота, включающее колосники, смежные из которых имеют различную упругость .Known sieve screen, including grates, adjacent of which have different elasticity.

Недостатки сита - сложность изготовлени , монтажа просеивающей поверхности , трудность замены вышедшего из стро колосника в виде струны , обернутой вокруг направл ющих роликов.The drawbacks of the sieve are the difficulty of manufacturing, installing the screening surface, the difficulty of replacing an outdated grate in the form of a string wrapped around the guide rollers.

Более близко к предлагаемому сито грохота, включающее поперечные балки с размещенными на них амортизаторами , имеющими сквозные отверсти с прорез ми дл креплени продольных колосников Closer to the proposed screen sieve, including transverse beams with shock absorbers placed on them, having through holes with slots for fastening the longitudinal grates

Недостатком этого сита вл етс сложность изготовлени и монтажа, обусловленна креплением отдельных колосников к нижней части амортизатора . Сито трудоемко в изготовленииThe disadvantage of this screen is the difficulty of manufacturing and installation, due to the mounting of individual grates to the lower part of the shock absorber. Sieve laborious to manufacture

И эксплуатации в св зи с необходимостью выполнени в амортизаторах дугообразных отверстий и соответствующих им колосников с дугообразными изгибами. Кроме того, смещение колосников относительно друг друга при работе сита снижает эффект самоочистки просеивающей поверхности.And operation in connection with the need to make arcuate holes in the shock absorbers and the grates corresponding to them with arcuate bends. In addition, the displacement of the grate relative to each other during the operation of the sieve reduces the self-cleaning effect of the screening surface.

Цель изобретени - уменьшение трудоемкости изготовлени , монтажа и эксплуатации сита грохота при одновременном улучшении самоочистки просеивающей поверхности.The purpose of the invention is to reduce the labor intensity of manufacturing, installing and operating a screen sieve while simultaneously improving the self-cleaning of the screening surface.

Claims

This goal is achieved by the fact that in the screen of the screen, including crossbeams with shock absorbers placed on them, having through holes with slots for fastening the longitudinal grates, through grooves are formed in the shock absorbers, which are placed under each second hole, the latter being in the same plane. FIG. 1 shows a screen sieve, top view; in fig. 2 - fixing grates in shock absorbers. The sieve consists of rod grates 1, 2 installed in shock absorbers 3 mounted on transverse beams i screens. The shock absorbers have cylindrical holes 5 with slots 6 and 7 for fastening the grate 1,

2. Under each second hole there is a through groove 8. The groove can be made in the form of an envelope hole 5 at an angle close to 180, with end sections 9 directed in the direction opposite to the groove. It can also be made in the form of one or several holes made around 5 versts 5 for fixing the grates. A support plate 10 is fixed to fix the grates along their axis on the last support. Self-cleaning is provided during the operation of the screen due to the different mobility of the grates 1 relative to the grates 2 surface sifting. In addition, due to the simplicity of the design, a sufficiently high reliability of the sieve is achieved. Claims Sieve, including crossbeams with shock absorbers placed on them, having through holes with slots for fastening longitudinal grates, so that, in order to reduce the laboriousness of sieve production, installation and operation, while improving self-cleaning of the sieve the surfaces in the shock absorbers are made through grooves, which are placed under each second hole, the latter being made in the same plane. Sources of information taken into account in the examination 1. USSR author's certificate number 822925, cl. B 07 B 1L6, 19792. Author's certificate of the USSR (f 236369, class B 07 B 1/46, 1967 (prototype).