SU1489851A1 - Screen sieve - Google Patents
Screen sieve Download PDFInfo
- Publication number
- SU1489851A1 SU1489851A1 SU874276805A SU4276805A SU1489851A1 SU 1489851 A1 SU1489851 A1 SU 1489851A1 SU 874276805 A SU874276805 A SU 874276805A SU 4276805 A SU4276805 A SU 4276805A SU 1489851 A1 SU1489851 A1 SU 1489851A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sieve
- diameter
- working surface
- base
- valleys
- Prior art date
Links
Abstract
Изобретение относитс к горной промышленности и предназначено дл классификации сыпучего материала по классам крупности. Цель - увеличение срока службы сита за счет самофутеровки рабочей поверхности сита. Сито состоит из основани 1 с цилиндрическими выступами 3, размещенными вокруг каждого круглого просеивающего отверсти 2 с зазором друг относительно друга. Диаметр Д цилиндрического выступа 3 равен 1,25 - 1,5 диаметра D просеивающего отверсти 2, высота H=0,4-0,6 толщины H сита. Между смежными выступами 3 образованы впадины 4. Под действием колебаний грохота частицы материала с диаметром, меньшим диаметра отверстий 2, проход т через них. Мелкие фракции заполн ют впадины 4, образу тем самым защитный слой на рабочей поверхности основани 1 и защища его от износа. Крупные фракции, заполн ющие впадины 4, перекрывают наружные кромки выступов 3 и защищают их от износа. 2 ил.The invention relates to the mining industry and is intended to classify bulk material into size classes. The goal is to increase the service life of the sieve due to the self-lining of the working surface of the sieve. The sieve consists of a base 1 with cylindrical protrusions 3 placed around each round sieve aperture 2 with a gap relative to each other. The diameter D of the cylindrical protrusion 3 is equal to 1.25 - 1.5 of the diameter D of the sieve hole 2, the height H = 0.4-0.6 thickness H of the sieve. Cavities 4 are formed between adjacent protrusions 3. Under the influence of oscillations of the screen, particles of a material with a diameter smaller than the diameter of the holes 2 pass through them. Fine fractions fill the valleys 4, thereby forming a protective layer on the working surface of the base 1 and protecting it from wear. The coarse fractions filling the valleys 4 overlap the outer edges of the projections 3 and protect them from wear. 2 Il.
Description
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Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874276805A SU1489851A1 (en) | 1987-05-04 | 1987-05-04 | Screen sieve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU874276805A SU1489851A1 (en) | 1987-05-04 | 1987-05-04 | Screen sieve |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1489851A1 true SU1489851A1 (en) | 1989-06-30 |
Family
ID=21316564
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU874276805A SU1489851A1 (en) | 1987-05-04 | 1987-05-04 | Screen sieve |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1489851A1 (en) |
-
1987
- 1987-05-04 SU SU874276805A patent/SU1489851A1/en active
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