CN203484242U - Filter section screen of horizontal sedimentation filtration type centrifuge - Google Patents
Filter section screen of horizontal sedimentation filtration type centrifuge Download PDFInfo
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- CN203484242U CN203484242U CN201320596763.8U CN201320596763U CN203484242U CN 203484242 U CN203484242 U CN 203484242U CN 201320596763 U CN201320596763 U CN 201320596763U CN 203484242 U CN203484242 U CN 203484242U
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- horizontal sedimentation
- screen cloth
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Abstract
The utility model provides a filter section screen of a horizontal sedimentation filtration type centrifuge, and belongs to the technical field of horizontal sedimentation filtration type centrifuge equipment. The service life of the screen is prolonged. According to the technical scheme, the filter section screen is composed of a plurality of screen blocks, the screen blocks are connected in a parallel arrangement mode, each screen block is provided with a plurality of screen seams which are in parallel arrangement, included angles are formed between the screen seams of the screen blocks and the axes of the screen blocks, and the included angles are 5-8 degrees. According to the kinetic analysis and screw blade analysis of materials on the screen, the traditional structure that the screen seams are arranged in the axial direction of the screen is changed, the screen seams are rotated by a certain angle according to the movement conditions of the materials, and the movement directions of the screen seams and the materials are made to coincide on the screen face. Compared with the prior art, the structure of the screen is more reasonable, abrasion of the screen can be well reduced, the service life of the screen is prolonged, maintenance loads are reduced, and the economic benefits and the social benefits of enterprises are improved.
Description
Technical field
The utility model relates to a kind of fillter section screen cloth for Horizontal sedimentation perforated wall centrifuge, belongs to Horizontal sedimentation perforated wall centrifuge equipment technical field.
Background technology
At present, Horizontal sedimentation perforated wall centrifuge is as a kind of new and effective for fine slime dehydration equipment, dehydrating effect for fine fractions (< 0.5mm) such as coal, cyclone underflow and coal slimes in floatation clean coal, flotation is good, can guarantee Washing Water Close-Cycling in Preparation Plant.Have that product moisture is low, disposal ability is large, floor space is little simultaneously, there is no auxiliary equipment, system is simple and adapts to the advantages such as material concentration excursion is large.Horizontal sedimentation perforated wall centrifuge complete machine is partly comprised of power set, transmission, protective device, pan feeding, main frame, discharge, lubricated, control etc.Black water feeds rotary drum middle part (post cone junction) by feeding pipe, rotary drum High Rotation Speed produces the much larger centrifugal force of force of gravity, black water is subject to the effect of powerful centrifugal force, coal slime will be deposited on the inwall of rotary drum, and liquid will be crossed the discharge of overfall formation centrifugate, this process is called centrifugal sedimentation.A but rotating speed identical with rotary drum rotation direction is housed a little less than the spiral pushing device of rotary drum in rotary drum.The coal slime of drum inner wall, along with spiral is pulled to fillter section rotary drum, is equipped with screen cloth on this section of drum inner wall, to carrying out the coal slime of centrifugal sedimentation, carries out a centrifugal filtration again, and the remaining liq in coal slime is got rid of by screen cloth, forms filtered fluid.Then spiral propeller is pushed into discharge gate eliminating coal slime, and whole like this dehydration completes.In the centrifuge course of work, powerful centrifugal force makes coal slime be close to screen cloth, and spiral pushing device promotes coal slime and moves to discharge gate, cause screen cloth to be constantly subject to the wearing and tearing of coal slime, so Horizontal sedimentation perforated wall centrifuge fillter section screen cloth belongs to vulnerable part.At present, the structure of traditional Horizontal sedimentation perforated wall centrifuge fillter section screen cloth is that rectangle grate size combines, and its major defect is axial arranged by grate size of the sieve seam of grate size, traditional increasing the friction of material with sieve seam, cause wearing no resistance of grate size.Because the cost of screen cloth own is higher, frequently change the maintenance cost that grate size has improved centrifuge., during maintenance of equipment screen cloth, need to tear greatly to equipment time-consuming, effort, expensive open meanwhile.Therefore, improve the service life of Horizontal sedimentation perforated wall centrifuge fillter section screen cloth, to improving the economic benefit of enterprise, can produce significant effect.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Horizontal sedimentation perforated wall centrifuge fillter section screen cloth, this screen cloth can extend the service life of Horizontal sedimentation perforated wall centrifuge fillter section screen cloth, reduce the frequency of changing screen cloth, reduce maintenance cost and maintenance time, significantly improve business economic and social benefit.
The technical scheme solving the problems of the technologies described above is:
A Horizontal sedimentation perforated wall centrifuge fillter section screen cloth, it is comprised of polylith grate size, and the connection that is arranged in parallel of polylith grate size has many bar grizzl(e)ies seams on every grate size, and many bar grizzl(e)ies seams are arranged in parallel, and its improvements are that sieve seam and the axis of grate size of grate size have angle.
Above-mentioned Horizontal sedimentation perforated wall centrifuge fillter section screen cloth, sieve seam and the angle of the axis of grate size of described grate size are 5 °～8 °.
Usefulness of the present utility model is:
The utility model is the dynamics on screen cloth and helical blade analysis according to material, changes the structure that conventional screen mesh screen seam is arranged vertically, allows sieve seam rotate to an angle according to material movement situation, and the direction of motion on compass screen surface overlaps with material to make sieve seam.Compared with prior art, the structure of screen cloth is more reasonable for the utility model, can reduce well screen cloth wearing and tearing, improves screen cloth service life, thereby reduces maintenance load, has improved economic benefit and the social benefit of enterprise.
Accompanying drawing explanation
Fig. 1 is the structural representation of grate size of the present utility model;
Fig. 2 is the A-A vertical view cutaway drawing of Fig. 1;
Fig. 3 is the structural representation of the screen cloth of a plurality of grate sizes compositions.
In figure, mark is as follows: grate size 1, sieve seam 2, angle
.
The specific embodiment
In figure, show, the utility model is comprised of polylith grate size 1, and polylith grate size 1 connection that is arranged in parallel has many bar grizzl(e)ies seams 2 on every grate size 1, and many bar grizzl(e)ies seams 2 are arranged in parallel.
In figure, show, the utility model is the dynamics on screen cloth and helical blade analysis according to material, changes the structure that conventional screen mesh screen seam 2 is arranged vertically, allows sieve seam 2 of the present utility model rotate to an angle according to material movement situation
, angle
general value is 5 °～8 °, and the direction of motion on compass screen surface overlaps with material to make sieve seam 2, to reduce screen cloth, wear and tear, and raising screen cloth service life.
Determine angle
the method of size:
Horizontal sedimentation perforated wall centrifuge centrifuge, material is subject to the impact of lead angle and the cone section semi-cone angle of helical blade at the movement locus of device interior, and the overall movement locus of material is a helix.About sieve seam and axial angle
determining of size, can draw by following analysis.
The first step, material dynamic analysis is in order to guarantee helical blade convey materials smoothly.Primary condition is to guarantee
, need
.
In formula:
-coal slime is along drum wall glide direction and perpendicular to the angle between the sagittal plane of rotary drum axis;
Second step, in conjunction with the analysis of the first step, determines lead angle according to design
.
In formula:
-helical pitch,
-diameter.
The 3rd step, determine Novel screen seam 2 with axial between angle
,
.
Claims (2)
1. a Horizontal sedimentation perforated wall centrifuge fillter section screen cloth, it is comprised of polylith grate size (1), polylith grate size (1) connection that is arranged in parallel, on every grate size (1), there are many bar grizzl(e)y seams (2), many bar grizzl(e)y seams (2) are arranged in parallel, and it is characterized in that: the sieve seam (2) of grate size (1) has angle with the axis of grate size (1).
2. Horizontal sedimentation perforated wall centrifuge fillter section screen cloth according to claim 1, is characterized in that: the sieve seam (2) of described grate size (1) is 5 °～8 ° with the angle of the axis of grate size (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320596763.8U CN203484242U (en) | 2013-09-26 | 2013-09-26 | Filter section screen of horizontal sedimentation filtration type centrifuge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320596763.8U CN203484242U (en) | 2013-09-26 | 2013-09-26 | Filter section screen of horizontal sedimentation filtration type centrifuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203484242U true CN203484242U (en) | 2014-03-19 |
Family
ID=50255103
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320596763.8U Expired - Fee Related CN203484242U (en) | 2013-09-26 | 2013-09-26 | Filter section screen of horizontal sedimentation filtration type centrifuge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203484242U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106204A (en) * | 2022-06-17 | 2022-09-27 | 唐山森普矿山装备有限公司 | Screen basket splicing method |
-
2013
- 2013-09-26 CN CN201320596763.8U patent/CN203484242U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115106204A (en) * | 2022-06-17 | 2022-09-27 | 唐山森普矿山装备有限公司 | Screen basket splicing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140319 Termination date: 20180926 |