CN2339303Y - Oblique-plate spiral grader - Google Patents
Oblique-plate spiral grader Download PDFInfo
- Publication number
- CN2339303Y CN2339303Y CN 98245016 CN98245016U CN2339303Y CN 2339303 Y CN2339303 Y CN 2339303Y CN 98245016 CN98245016 CN 98245016 CN 98245016 U CN98245016 U CN 98245016U CN 2339303 Y CN2339303 Y CN 2339303Y
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- plate
- box
- sloping plate
- classification
- swash plate
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Abstract
The utility model relates to the pulp hydraulic classification machine, composed of a sloping plate classification tank combined by an inner sloping plate, a feeding tank, a sand collection tank, and a screw delivery groove. The feeding tank is jointed on one inclined plane of the classification tank. The sand collection tank is communicated on the bottom part of the classification tank. The screw delivery groove is connected with an outlet end of a sealing box body of the sand collection tank. A screw scraper is arranged in the sand collection tank and the screw delivery groove. Using the simple course and low running cost, the utility model can achieve productivity and classification efficiency close to hydro-cyclones.
Description
The utility model relates to ore pulp hydraulic classiciation machinery.
In the levigate process of raw mineral materials, the ore mill discharge often need carry out in advance or check classification, overflow is sent to subsequent processing as new product, sand setting then returns into ore mill, common apparatus has two kinds: a kind of is spiral classifier, another kind is a hydrocyclone, the former carries out classification by the gravity hindered settling, and process is simple and economical, but the classification area is little, the sand setting folder is thin many, classification efficiency is low, and the latter adopts centrifugal force to strengthen the process of classification, and production capacity and classification matter efficient improve a lot than the former, but energy consumption and material consumption are increased, and loop configuration and normal operation need more condition.
The purpose of this utility model is to provide a kind of performance better swash plate spiral classifier, and it can reach production capacity and classification efficiency near hydrocyclone with simple procedure and low operating cost.
The purpose of this utility model reaches by the following technical programs: sloping plate grading case, feed box, silt box, spiral conveying groove and the matching component of the combination of dress swash plate in this equipment comprises, these three casees grooves constitute.An inclined-plane of the sloping plate grading case of trapezoid body tightens and is connected with feed box, and classification case bottom is the connected set sandbox then, and spiral conveying groove is connected with the port of export of silt box closed box, in silt box and the spiral conveying groove spiral scraper is housed.The sloping plate grading case is arranged overflow by the top, and sand setting falls into silt box; Gather the sand setting of bottom in the silt box, rise to specified altitude along the wedged bottom groove, under the row of groove top by spiral scraper.
One or more swash plate identical and arranged side by side combinations are housed in the described sloping plate grading case, every swash plate combination has the identical and parallel tilting flat board formation of polylith, form the identical plate interbed of size between every two boards, in the middle of per two tilting flat boards, total length along plate is inserted with an I bar, the plate interbed is divided into two symmetrical sloping plate grading unit on width, a concave shape overfall is respectively left in the two sides, top of each swash plate unit, and bottom sides has one to several charging apertures.
Said silt box is the wedged bottom closed box of a channel section, its entrance point is connected with the bottom of sloping plate grading case, and the port of export is connected with the spiral conveying groove of U type section, the absolute altitude of this junction, be the maximum height of casing port of export top cover sealing, be equal to or higher than the liquid level in the feed box.There is the rectangle drain hole to communicate between feed box and sloping plate grading case.
The inclination angle of described inclined planar is 45 ± 10 °, and distance between plates is 20～50mm, and formed sloping plate grading unit horizontal cross-sectional area is no more than 0.02m, and the horizontal displacement that particulate overflows is no more than 0.3m.
The gradient of described spiral conveying groove is 28 ± 3 °, and the spiral scraper head end in the groove is on the delivery chute top, and tail end extends to the least significant end of silt box wedged bottom.
Below in conjunction with embodiment and accompanying drawing thereof, the utility model is described in further detail.
Fig. 1 is a structural representation of the present utility model, also is the A-A cutaway view among Fig. 2.
Fig. 2 is a schematic top plan view of the present utility model.Fig. 3 is a forward view of the present utility model.
Fig. 4 is local enlarged diagram for swash plate makes up.
As shown in the figure, the swash plate spiral classifier that the utility model proposes is by the sloping plate grading case 1 of trapezoid body, the silt box 5 that the feed box 3 that its oblique upper links to each other and its underpart link, and constitute by the spiral conveying groove 6 of the haulage sand setting that makes progress at the bottom of the silt box.The swash plate combination that one or more same specifications are arranged in the sloping plate grading case, is arranged in juxtaposition is by crossbeam 10 supportings of tilting box bottom.Each swash plate combination is identical and parallel tilting flat board 2 formations by n (n＞1) piece, feed character value in 45 ± 10 ° of scopes is pressed at dull and stereotyped inclination angle, requirement makes the deposit on the plate face glide continuously and come off along the plate face by deadweight, is putting before this and is making every effort to reduce the inclination angle to increase the horizontal projected area and the classification production capacity of swash plate.The left and right sides face of swash plate combination is with 16 cappings of limit wall and support each tilting flat board, tightens up with steel frame again.Like this, in the combination of each swash plate, form between every two boards that size is identical, sealing and independently plate interbed 11, i.e. swash plate shallow-layer unit.The combination of each swash plate have (n-1) individual size complete with sealing and plate interbed independently separately, its specification is expressed choosing value on demand by plate length and width spacing and tilting inclination angle.Wall bottom, limit has charging hole 9, and the Bian Bi top is lower than the swash plate top.Untight concave shape overfall 17 is respectively left in the both sides at each plate interbed top, respectively is fixed with a wedged bottom chute 12 on the left and right sides Bian Bi in the overfall outside, compiles the overflow and the discharge of spill mouth.Chute 12 inwalls and swash plate group limit wall 16 tighten up, sealing water-impervious when needing, and the bottom land gradient is as the criterion with no sand grains deposition.Swash plate combination in the middle of being positioned at is organized a shared overflow launder with the neighbour; Be positioned at the swash plate combination of both sides, the outer wall and the tilting box outer wall of its outside overflow launder tighten up, sealing water-impervious when needing.
In the middle of per two tilting flat boards, inject one I-shaped 13 in the swash plate combination, each swash plate shallow-layer unit is divided into two identical and symmetrical junior units 14 on width along whole plate is long.Insert I bar, can increase the intensity of swash plate combination, prevent dull and stereotyped sagging deflection, the more important thing is the horizontal cross-sectional area of classification shallow-layer unit is reduced by half, classification matter efficient is further improved at its width.Each junior unit after cutting apart all has charging hole 9, overfall 17 and sedimentation and the sediment outflow facility of oneself, has independently grading function, obtains higher classification matter efficient with littler horizontal cross-sectional area.Like this, the individual little sloping plate grading of 2 (n-1) unit constitutes a sloping plate grading combination, and m sloping plate grading constitutes a unit integrated form shallow-layer sloping plate grading case 1 that contains the individual stage unit of 2m (n-1).
The wedged bottom 4 of feed box is exactly the head end outer wall of tilting box, and at the rectangle drain hole 15 of its bottom, width equals the overflow groove width, mouthful long choosing value on demand.Drain hole makes feed evenly enter the both sides of each swash plate combination of sloping plate grading case, and each swash plate combination two bottom sides all has charging hole, and the perforation of particulate slip evenly enters each sloping plate grading unit, and coarse grain directly sinks to silt box.
Silt box is the wedged bottom closed box with channel section, and the bottom of its entrance point and sloping plate grading case links and sealing, and the port of export links half-open spiral conveying groove 6.The absolute altitude of silt box port of export top pressure closure upper end 8 should be higher than the liquid level in the feed box.
Spiral conveying groove is a U-shaped wedged bottom groove, spiral scraper 7 in it is begun to strike-off by the least significant end of silt box wedged bottom, with sand setting along the wedged bottom groove haulage that makes progress, be promoted to the discharge height and the discharge of setting, spiral scraper length diameter pitch revolution and installation gradient parameters such as (being generally 28 ± 3 °), choosing value on demand.Spiral scraper starts for fully loaded, need be before startup silt sand or promote spiral scraper in the letdown tank.
The course of work of this device is as follows: ore pulp enters feed box, by custom-designed drain hole, inject the interior and even cloth of sloping plate grading case in each swash plate combination both sides, the thickest particle falls to silt box, the ore particle that suspends passes the charging hole of swash plate combination limit wall two bottom sides with liquid stream, evenly enter each stage unit in each plate interbed, and along swash plate to the upper reaches.The separation of mine particle group is carried out in the sloping plate grading unit.Because settling height is less than 70mm, thicker ore particle just sank to the plate face in the very short time, and by conducting oneself with dignity along the plate slippage that faces down, fell in the silt box at last.Thinner ore particle flows to go up with liquid and flows, because the horizontal cross-sectional area of stage unit is less than 0.02m, so can effectively limit the horizontal liquid stream harmful to classification, shearing force between surrounding wall and the narrow rising liquid stream can reach higher effectiveness of classification and classification matter efficient to the strong peptizaiton of particulate floc sedimentation and condensation product in addition.The thin ore particle that rises with liquid stream is overflowed by the spill at this stage unit top, is pooled to overflow launder and discharges.Rough grain sedimentation in the ore collecting box also is collected at wedged bottom,, is risen to its top through spiral conveying groove again and discharges to the ore collecting box port of export by the spiral scraper haulage.
The utility model is compared with existing various hydraulic classification equipments and is had the following advantages:
The grading plant of this equipment by a large amount of highly integrated complete with and separately independently the stage unit combination and Become, becoming the sand transportation device is ripe general conveying worm, is a kind of unit integration type shallow-layer oblique flow spiral branch The level machine. It is big to have treating capacity, and the classification efficiency height is convenient in enormous quantities the manufacturing and the control quality. Than the cyclone energy consumption And operating cost reduces, and is beneficial to normally to use and reduce running cost.
The feed of this equipment, classification, to the sloping plate grading unit of discharging overflow and sand setting complete, every Unit one only is half of swash plate interbed, and horizontal cross-sectional area is less than 0.02m, and is littler by 2～3 than existing gravity classification The individual order of magnitude. Can effectively limit the horizontal liquid stream harmful to classification, the horizontal flow of overflow is discharged alone in each unit Moving ultimate range can effectively prevent the again sedimentation of overflow particulate less than 0.3m; Also has surrounding wall and narrow in the unit Shearing force between the narrow rising liquid stream can be strengthened the peptizaiton to floc sedimentation and condensation product greatly; These will be carried The accuracy of high gravitational field hydraulic classiciation is matter efficient, reaches the level of hydrocyclone centrifugal force field classification.
3. the classification process of this equipment is to finish in the swash plate shallow-layer, and the settling height of coarse grain is less than 70mm, can The very short time sinks to the plate face, along face down slippage and fall into ore collecting box of plate. With existing gravity classification equipment Comparing, shorten the multiple of the time of settling height, namely is the increase multiple of unit occupied area production capacity. One As be several times to 10 times, close with the specific productivity of cyclone classification.
4. the sand removing device of this equipment is the about 30 ° spiral conveying groove of the gradient, the moisture content of the sand setting of discharging and thin Grain size content is lower than existing hydraulic classification equipment or cyclone.
5. this equipment has the advantage of spiral classifier and hydrocyclone concurrently, has overcome its shortcoming separately, with spiral shell Revolve grader and compare, classification matter efficient is improved largely, and is close with cyclone; Take up an area under the identical production capacity Area reduction several times reduce equipment size, investment and operating charges, compare with hydrocyclone, need not use sand The auxiliary facilities such as pump, energy direct and ore mill or miscellaneous equipment formation loop, configuration is compact, and energy consumption and material consumption are Few, Operation and Maintenance is more convenient.
Claims (6)
1. swash plate screw classifying device, include a sloping plate grading case (1) and a sand setting spiral conveying groove (6), it is characterized in that: an inclined-plane of the sloping plate grading case of trapezoid body tightens and is connected with feed box (3), classification case bottom is connected set sandbox (5) then, spiral conveying groove is connected with the port of export of silt box closed box, and spiral scraper (7) is housed in silt box and the spiral conveying groove.
2. device according to claim 1, it is characterized in that: one or more swash plate identical and arranged side by side combinations are housed in the sloping plate grading case, every swash plate combination is identical and parallel tilting flat board (2) formation by polylith, form the identical plate interbed of size (11) between every two boards, in the middle of per two tilting flat boards, total length along plate is inserted with an I bar (13), the plate interbed is divided into two sloping plate grading unit (14) of symmetry on width, a concave shape overfall (17) is respectively left in the two sides, top of each swash plate unit, and bottom sides has one to several charging apertures (9).
3. device according to claim 1, it is characterized in that: silt box is the wedged bottom closed box of a channel section, its entrance point is connected with the bottom of sloping plate grading case, the port of export connects the spiral conveying groove of U type section, the absolute altitude of this upper end, junction (8), be the maximum height of casing port of export top cover sealing, be equal to or higher than the liquid level in the feed box.
4. device according to claim 1 is characterized in that: have rectangle drain hole (15) to communicate between feed box and sloping plate grading case.
5. according to claim 1 and 2 described devices, it is characterized in that: the inclination angle of inclined planar is 45 ± 10 °, and distance between plates is 20～50mm, and formed sloping plate grading unit horizontal cross-sectional area is no more than 0.02m, and the horizontal displacement that particulate overflows is no more than 0.3m.
6. according to claim 1 and 3 described devices, it is characterized in that: the gradient of spiral conveying groove (6) is 28 ± 3 °, and the spiral scraper head end in the groove is on the delivery chute top, and tail end extends to the least significant end of silt box wedged bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98245016 CN2339303Y (en) | 1998-10-08 | 1998-10-08 | Oblique-plate spiral grader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98245016 CN2339303Y (en) | 1998-10-08 | 1998-10-08 | Oblique-plate spiral grader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2339303Y true CN2339303Y (en) | 1999-09-22 |
Family
ID=33990925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98245016 Expired - Fee Related CN2339303Y (en) | 1998-10-08 | 1998-10-08 | Oblique-plate spiral grader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2339303Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105228752A (en) * | 2013-05-01 | 2016-01-06 | Fl史密斯公司 | Clasfficiator |
| CN112138853A (en) * | 2020-09-08 | 2020-12-29 | 东北大学 | Fine particle hydraulic classification device and method based on vortex oblique flow |
-
1998
- 1998-10-08 CN CN 98245016 patent/CN2339303Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105228752A (en) * | 2013-05-01 | 2016-01-06 | Fl史密斯公司 | Clasfficiator |
| CN112138853A (en) * | 2020-09-08 | 2020-12-29 | 东北大学 | Fine particle hydraulic classification device and method based on vortex oblique flow |
| CN112138853B (en) * | 2020-09-08 | 2021-06-04 | 东北大学 | Fine particle hydraulic classification device and method based on vortex oblique flow |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE ADDRESS; FROM: KUNMING INST. OF METALLURGY TO: YEYAN NEW MATERIAL CO., LTD., KUNMING |
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| CP02 | Change in the address of a patent holder |
Address of the patentee after: Kunming Yeyan New Material Co., Ltd. Address of the patentee before: Kunming Metallurgical Research Institute |
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| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |