CN201357140Y - Coal mine coal preparation double-deck vibration grading sieve - Google Patents
Coal mine coal preparation double-deck vibration grading sieve Download PDFInfo
- Publication number
- CN201357140Y CN201357140Y CNU2009200221352U CN200920022135U CN201357140Y CN 201357140 Y CN201357140 Y CN 201357140Y CN U2009200221352 U CNU2009200221352 U CN U2009200221352U CN 200920022135 U CN200920022135 U CN 200920022135U CN 201357140 Y CN201357140 Y CN 201357140Y
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- screen surface
- compass screen
- sieve
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Abstract
The utility model discloses a coal mine coal preparation double-deck vibration grading sieve, wherein an upper and a lower sieve surfaces are both divided into an upper section and a lower section which have unequal sieve meshes, wherein the upper section of the sieve surface on the upper layer is formed through arranging round bars at interval of 40mm, the lower section of the sieve surface on the lower layer is a strip screen deck which is formed through arranging round bars at interval of 250mm, an arc plate which is cut from a phi-325mm round pipe is connected on a sieve bar and a lower beam of a sieve box as a guiding plate for extra-large lump materials, the upper section of the sieve surface on the lower layer is a square net sieve surface of 80*80mm made from high-carbon steel, and the lower section of the sieve surface on the lower layer is a strip sieve surface formed through arranging round bars at interval of 40mm. As the upper and the lower sieve surfaces are both divided into the upper section and the lower section which have unequal sieve meshes, run-of-mine coal in mines is finally screened into products with three grain diameters, and the blockage phenomenon is avoided in the screening process.
Description
Technical field
The utility model relates to the classifying screen that the colliery coal separation is used.
Background technology
The vibration separation screen that colliery coal separation is at present used (model of producing as heavy mine, Anshan Machines Plant is the double-deck classifying screen of vibration of 2Yag2148) has two-layer tilting screen cloth up and down, the upper strata is the strip compass screen surface that high 300 track connects, and lower floor is the grid compass screen surface of the high-carbon steel establishment of φ 50.Reason such as big owing to mine hoisting run-of-mine coal (ROM coal) particle size differences, that material shapes is different, therefore block spoil all results in blockage easily to two-layer compass screen surface when screening, thereby causes a large amount of materials bulk deposition phenomenon on compass screen surface, has had a strong impact on normal production.
Summary of the invention
The purpose of this utility model provides a kind of double-deck vibration separation screen that does not produce obstruction.
For achieving the above object, the utility model is taked following technical scheme: it comprises screen box and two-layer tilting up and down two-layer compass screen surface composition, it is characterized in that:
The upper strata compass screen surface is divided into two sections, and wherein the epimere compass screen surface adopts the strip compass screen surface that φ 22 round steel form by the equidistant gap arrangement of 40mm; The strip compass screen surface that the hypomere compass screen surface adopts φ 28 round steel to form by the equidistant gap arrangement of 250mm on grating and screen box sill, is connected with φ 325mm pipe and cuts out arc, is used as the guide plate of especially big block of material;
Lower floor's compass screen surface also is divided into two sections, and the epimere compass screen surface adopts φ 12 high-carbon steel to make 80 * 80mm square net compass screen surface; The hypomere compass screen surface adopts φ 22 round steel to press the equidistant gap arrangement of 40mm and compass screen surface into strips, for preventing to enter undersize greater than the sheet material of 100mm length, φ 16 round steel of every interval 100mm transverse weld below the hypomere compass screen surface also are simultaneously to have the effect of reinforcing compass screen surface.
Below in conjunction with description of drawings good effect of the present utility model be: when equipment normally moves, when material coal to be sieved enters a portion by chute, under the compound action of vibration force and gravity, gradually to the landing of b portion, in the landing process, material is divided into two parts, and about 80% width falls into c portion less than the material of 40mm, and width falls into b portion greater than the material of 40mm; The material that falls into c portion cuts slightly once more through 80 * 80mm high-carbon steel grid compass screen surface, and making particle diameter become c portion screenings less than the material of 80 * 40mm becomes finished product, falls into d portion greater than the material of 80 * 40mm; After the material that falls into b portion is the strip compass screen surface screening of 250mm through spacing, width enters down the road conveyer picker greater than the especially big material oversize of 250mm, width falls into d portion less than the material in 250mm, after the material of going into d portion through b portion and c clan is the strip compass screen surface screening of 40mm through spacing, be sized into width less than 40mm and width the material between 40-250mm.After so comprehensive screening, the most at last mine run-of-mine coal (ROM coal) screening for width greater than 250mm, 40～250mm with less than three kinds of products of 40mm, and in screening process, do not contain the generation clogging.
Description of drawings
Fig. 1 is the front view of upper strata compass screen surface;
Fig. 2 is the front view of lower floor's compass screen surface;
Fig. 3 is an overall schematic of the present utility model.
Marginal data: a represents upper strata compass screen surface epimere, and b represents upper strata compass screen surface hypomere, and c represents lower floor's compass screen surface epimere, and d represents lower floor's compass screen surface hypomere.
The 1-guide plate, 2-round steel, 3-lower floor compass screen surface, 4-upper strata compass screen surface, 5-screen box.
The specific embodiment
Further specify below in conjunction with the drawings and specific embodiments.
As shown in the figure, it comprises screen box 5 and two-layer tilting upper strata compass screen surface 4 and lower floor's compass screen surface 3 compositions, wherein:
Upper strata compass screen surface 4 is divided into two sections, and wherein the compass screen surface of upper strata compass screen surface epimere a adopts the strip compass screen surface that φ 22 round steel form by the equidistant gap arrangement of 40mm; The strip compass screen surface that the compass screen surface of upper strata compass screen surface hypomere b adopts φ 28 round steel to form by the equidistant gap arrangement of 250mm on grating and screen box sill, is connected with φ 325mm pipe and cuts out arc, is used as the guide plate 1 of especially big block of material;
Lower floor's compass screen surface 3 also is divided into two sections, and wherein the compass screen surface of lower floor's compass screen surface epimere c adopts φ 12 high-carbon steel to make 80 * 80mm square net compass screen surface; The compass screen surface of the compass screen surface hypomere d of lower floor adopts φ 22 round steel to press the equidistant gap arrangement of 40mm and compass screen surface into strips.
For preventing to enter undersize greater than the sheet material of 100mm length, φ of every interval 100mm transverse weld 16 round steel 2 below the compass screen surface hypomere d of lower floor also are simultaneously to have the effect of reinforcing compass screen surface.
Claims (2)
1, the double-deck vibration separation screen of a kind of colliery coal separation, it comprises screen box and two-layer tilting up and down two-layer compass screen surface composition, it is characterized in that,
The upper strata compass screen surface is divided into two sections, and wherein the epimere compass screen surface adopts the strip compass screen surface that φ 22 round steel form by the equidistant gap arrangement of 40mm; The strip compass screen surface that the hypomere compass screen surface adopts φ 28 round steel to form by the equidistant gap arrangement of 250mm on grating and screen box sill, is connected with φ 325mm pipe and cuts out arc, is used as the guide plate of especially big block of material;
Lower floor's compass screen surface also is divided into two sections, and the epimere compass screen surface adopts φ 12 high-carbon steel to make 80 * 80mm square net compass screen surface; The hypomere compass screen surface adopts φ 22 round steel to press the equidistant gap arrangement of 40mm and compass screen surface into strips.
2, the double-deck vibration separation screen of colliery coal separation as claimed in claim 1 is characterized in that φ 16 round steel of every interval 100mm transverse weld below lower floor's compass screen surface hypomere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200221352U CN201357140Y (en) | 2009-02-17 | 2009-02-17 | Coal mine coal preparation double-deck vibration grading sieve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200221352U CN201357140Y (en) | 2009-02-17 | 2009-02-17 | Coal mine coal preparation double-deck vibration grading sieve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201357140Y true CN201357140Y (en) | 2009-12-09 |
Family
ID=41422898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200221352U Expired - Fee Related CN201357140Y (en) | 2009-02-17 | 2009-02-17 | Coal mine coal preparation double-deck vibration grading sieve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201357140Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105348861A (en) * | 2015-10-23 | 2016-02-24 | 谭乔 | Functional calcium carbonate powder and production method thereof |
-
2009
- 2009-02-17 CN CNU2009200221352U patent/CN201357140Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105348861A (en) * | 2015-10-23 | 2016-02-24 | 谭乔 | Functional calcium carbonate powder and production method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091209 Termination date: 20120217 |