CN102294324A - Vertical fine-grained screening device and method - Google Patents
Vertical fine-grained screening device and method Download PDFInfo
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- CN102294324A CN102294324A CN2011101594893A CN201110159489A CN102294324A CN 102294324 A CN102294324 A CN 102294324A CN 2011101594893 A CN2011101594893 A CN 2011101594893A CN 201110159489 A CN201110159489 A CN 201110159489A CN 102294324 A CN102294324 A CN 102294324A
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Abstract
The invention provides a vertical fine-grained screening device and method. A screening body in a zigzag arrangement is arranged in a vertical type rack; powdery materials are conveyed into a fine-grained screening device by virtue of a belt and enters sieves at a first layer, oversize products fall into the sieves at a second layer to be continuously screened, screen underflows enter into a screen underflow chute by virtue of funnels below the sieves and fall into a screen underflow belt, the oversize products at the second layer fall into the sieves at a third layer to be continuously screened, and the screen underflows enter into the screen underflow chute by virtue of the funnels below the sieves and fall into the screen underflow belt; the process is repeated until the oversize products are finally screened to be clean and then fall into an oversize product chute as well as enter an oversize product belt; and the sieves at each layer can be replaced. The screening device and method provided by the invention can be realized without extra power, and the fine-grained material screening can be realized only by the vibration of the sieves and the gravity of materials; and the process is environmentally-friendly and energy-saving.
Description
Technical field
The present invention relates to coal separation, ore dressing with method for sieving and screening plant thereof, especially relate to a kind of vertical fine granularity screening plant and method for sieving.
Background technology
Ore dressing both at home and abroad and coal separation method for sieving and screening plant thereof commonly used has at present: vibratory sieve, shaker screen, roller picker, spiral screen etc.Preceding two kinds all is to utilize the vibration of sieve plate or whole sieve nest to shake impelling and bulk material, and back two kinds all is to utilize the axle rotation to carry and sieve material, can both reach comparatively ideal effect under most of situation.But the raw meal particle size uniformity requirement that screening is come out is than higher and sieve ratio thoroughly the time, and above-mentioned four kinds of sieves just are difficult to reach designing requirement.The vibratory sieve of individual layer or shaker screen can be realized preliminary screening during relatively than the material screening of coarseness; When selecting multilayer vibratory sieve or shaker screen for use, how to control that varigrained to be sized that material transports between multilayer vibratory sieve or shaker screen be a difficult problem always; Use multistage single-deck vibrating screen equipment or shaker screen equipment, must increase and transport cost and equipment cost, also brought huge material waste and environmental pollution simultaneously; In addition, the relation of how controlling between the aperture of sieve nest sieve aperture of multistage single-deck vibrating screen equipment or shaker screen equipment also is the problem that is not easy to solve.Roller picker is because the running part complex structure, and sieve-plate aperture ratio is subjected to distance between axles restriction and sieve nest cost height, generally also is only to be used for the granularity (material screening of granularity＞30mm) greatly.The spiral screen screening effect is better, but the power consumption big 2-3 of common screening (be doubly), equipment and consumable accessory cost height, material is had fragmentation, present less use.
Therefore, the raw meal particle size uniformity requirement that screening is come out than higher and sieve ratio more completely dry screening be a global problem always, especially for the screening of granularity less than the material of 10mm (millimeter).
Summary of the invention
In order to solve the technical barrier that exists in the sieving technology in the prior art, of the present invention provide a kind of simple in structure, can realize fine-grained screening plant of selected difference and method for sieving
According to a first aspect of the present invention, a kind of vertical fine granularity screening plant that provides, it comprises Vertical Rack, charging gear, vibratory sieve, defeated material chute, loading head; Charging gear is arranged on the top of Vertical Rack, a plurality of vibratory sieves link to each other and to be connected into " it " font and to be installed in Vertical Rack inside, defeated material chute is arranged on the outside or a plurality of vibratory sieves bottom of Vertical Rack, be used to transport the material that sieves out, loading head is arranged at Vertical Rack one side, is used to collect defeated material chute and transports next material.
Preferably, defeated material chute further comprises screenings chute and oversize chute, and the screenings chute is arranged on the outside of Vertical Rack and is used to transport than the fine granularity material, and the oversize chute is arranged on last vibratory sieve bottom.
More preferably, the oversize chute is funnel under the sieve.
Preferably, between defeated material chute and loading head, be provided with and transport belt, be used to transport defeated material chute and transport next material.
More preferably, transport belt and comprise screenings belt 10 and oversize belt 12.
Further, vibratory sieve is the 2-10 layer; Preferably, vibratory sieve is the 4-7 layer.
Additionally, each layer vibratory sieve all can be changed, and the sieve nest of selecting different screen-apertures.
According to a second aspect of the present invention, a kind of vertical fine granularity method for sieving is provided, use therein vertical fine granularity screening plant comprises Vertical Rack, and sieve is funnel 2, ground floor sieve nest 3, the first screenings chute 4, second layer sieve nest 5, the 3rd layer of sieve nest 6, the 4th layer of sieve nest 7, layer 5 sieve nest 8, layer 6 sieve nest 9, screenings belt 10, oversize chute 11, oversize belt 12 down; Ground floor sieve nest 3, second layer sieve nest 5, the 3rd layer of sieve nest 6, the 4th layer of sieve nest 7, layer 5 sieve nest 8, layer 6 sieve nest 9 all is inclined to " it " font and is installed in the Vertical Rack, the vibratory sieve bottom of ground floor sieve nest 3 connects the vibratory sieve front portion of second layer sieve nest 5, the vibratory sieve bottom of second layer sieve nest 5 connects the vibratory sieve front portion of the 3rd layer of sieve nest 6, the vibratory sieve bottom of the 3rd layer of sieve nest 6 connects the vibratory sieve front portion of the 4th layer of sieve nest 7, and the vibratory sieve bottom of the 4th layer of sieve nest 7 connects the vibratory sieve front portion of layer 5 sieve nest 8, the vibratory sieve bottom of layer 5 sieve nest 8 connects the vibratory sieve front portion of layer 6 sieve nest 9, the vibratory sieve lower tilt of layer 6 sieve nest 9 is arranged on the top of oversize chute 11;
Described vertical fine granularity method for sieving comprises that step is as follows:
1) raw coal 13 is transported to the Vertical Rack top by belt, enters ground floor sieve nest 3;
2) oversize of ground floor sieve nest 3 falls into the 5 continuation screenings of second layer sieve nest, and the screenings of ground floor sieve nest 3 enters screenings chute 4 through the funnel 2 that sieves down, falls into screenings belt 10, is transported to first loading head through screenings belt 10;
3) material that falls into second layer sieve nest 5 continues to be sized, the oversize of second layer sieve nest 5 falls into the 3rd layer of sieve 6 and continues screening, the screenings of second layer sieve nest 5 enters screenings chute 4 through the funnel 2 that sieves down, falls into screenings belt 10, is transported to first loading head through screenings belt 10;
4) material that falls into the 3rd layer of sieve nest 6 continues to be sized, the oversize of the 3rd layer of sieve nest 6 falls into the 4th layer of sieve 7 and continues screening, the screenings of the 3rd layer of sieve nest 6 enters screenings chute 4 through the funnel 2 that sieves down, falls into screenings belt 10, is transported to first loading head through screenings belt 10;
5), material is sieved carrying out on the 4th layer of sieve nest 7, layer 5 sieve nest 8, the layer 6 sieve nest 9 with the screening step of similar step 3) and step 4);
6) oversize of layer 6 sieve nest 9 falls in the oversize chute 11, enters oversize belt 12 by oversize chute 11, is transported to second loading head.
The invention has the beneficial effects as follows:
(1) need not other induction system or carrying method, only rely on sieve nest self vibration and the self gravitation of material, realized oversize material moving at (layer) at different levels sieve nest;
(2) sieve aperture of sieve plate can be selected in (layer) at different levels sieve nest, thereby can realize selecting sieve plate according to the needs of material of different grain size screening, and then has realized the equipment versatility;
(3) Flow of Goods and Materials speed can be realized in the angle of inclination of (layer) at different levels by being provided with sieve nest in frame, and then realizes screening speed;
(4), can make in (layer) at different levels sieve nest the sieve plate sieve aperture all inequality, thereby can realize varigrained screening by selecting the screen-aperture of sieve plate in (layer) at different levels sieve nest.
Description of drawings
Fig. 1 is the screening structural entity schematic diagram according to fine granularity screening plant of the present invention,
Fig. 2 is the screening section of structure according to fine granularity screening plant of the present invention.
The specific embodiment
Preferred embodiment of the present invention is as follows:
See Fig. 1～Fig. 2, in the first embodiment of the present invention, a kind of vertical fine granularity screening plant, it comprises Vertical Rack, charging gear, vibratory sieve, defeated material chute, loading head; Charging gear is arranged on the top of Vertical Rack, a plurality of vibratory sieves link to each other and to be connected into " it " font and to be installed in Vertical Rack inside, defeated material chute is arranged on the outside or a plurality of vibratory sieves bottom of Vertical Rack, be used to transport the material that sieves out, loading head is arranged at Vertical Rack one side, is used to collect defeated material chute and transports next material.
Wherein, defeated material chute further comprises screenings chute and oversize chute, and the screenings chute is arranged on the outside of Vertical Rack and is used to transport than the fine granularity material, and the oversize chute is arranged on last vibratory sieve bottom.Preferably, the oversize chute is funnel under the sieve.In addition, also can between defeated material chute and loading head, be provided with and transport belt, be used to transport defeated material chute and transport next material.
Further, transport belt and comprise screenings belt 10 and oversize belt 12.Vibratory sieve is the 2-10 layer; Preferably, vibratory sieve is the 4-7 layer.Each layer vibratory sieve all can be changed, and the sieve nest of selecting different screen-apertures.
In the second embodiment of the present invention, a kind of vertical fine granularity method for sieving, use therein vertical fine granularity screening plant comprises Vertical Rack, and sieve is funnel 2, ground floor sieve nest 3, the first screenings chute 4, second layer sieve nest 5, the 3rd layer of sieve nest 6, the 4th layer of sieve nest 7, layer 5 sieve nest 8, layer 6 sieve nest 9, screenings belt 10, oversize chute 11, oversize belt 12 down; Ground floor sieve nest 3, second layer sieve nest 5, the 3rd layer of sieve nest 6, the 4th layer of sieve nest 7, layer 5 sieve nest 8, layer 6 sieve nest 9 all is inclined to " it " font and is installed in the Vertical Rack, the vibratory sieve bottom of ground floor sieve nest 3 connects the vibratory sieve front portion of second layer sieve nest 5, the vibratory sieve bottom of second layer sieve nest 5 connects the vibratory sieve front portion of the 3rd layer of sieve nest 6, the vibratory sieve bottom of the 3rd layer of sieve nest 6 connects the vibratory sieve front portion of the 4th layer of sieve nest 7, and the vibratory sieve bottom of the 4th layer of sieve nest 7 connects the vibratory sieve front portion of layer 5 sieve nest 8, the vibratory sieve bottom of layer 5 sieve nest 8 connects the vibratory sieve front portion of layer 6 sieve nest 9, the vibratory sieve lower tilt of layer 6 sieve nest 9 is arranged on the top of oversize chute 11;
Described vertical fine granularity method for sieving comprises that step is as follows:
1) raw coal 13 is transported to the Vertical Rack top by belt, enters ground floor sieve nest 3;
2) oversize of ground floor sieve nest 3 falls into the 5 continuation screenings of second layer sieve nest, and the screenings of ground floor sieve nest 3 enters screenings chute 4 through the funnel 2 that sieves down, falls into screenings belt 10, is transported to first loading head through screenings belt 10;
3) material that falls into second layer sieve nest 5 continues to be sized, the oversize of second layer sieve nest 5 falls into the 3rd layer of sieve 6 and continues screening, the screenings of second layer sieve nest 5 enters screenings chute 4 through the funnel 2 that sieves down, falls into screenings belt 10, is transported to first loading head through screenings belt 10;
4) material that falls into the 3rd layer of sieve nest 6 continues to be sized, the oversize of the 3rd layer of sieve nest 6 falls into the 4th layer of sieve 7 and continues screening, the screenings of the 3rd layer of sieve nest 6 enters screenings chute 4 through the funnel 2 that sieves down, falls into screenings belt 10, is transported to first loading head through screenings belt 10;
5), material is sieved carrying out on the 4th layer of sieve nest 7, layer 5 sieve nest 8, the layer 6 sieve nest 9 with the screening step of similar step 3) and step 4);
6) oversize of layer 6 sieve nest 9 falls in the oversize chute 11, enters oversize belt 12 by oversize chute 11, is transported to second loading head.
Use technical scheme provided by the present invention, it has the advantage that is different from very much sieving technology in the prior art.In the present invention, need not other induction system or carrying method, only rely on sieve nest self vibration and the self gravitation of material, realized oversize material moving at (layer) at different levels sieve nest.In addition, the sieve aperture of sieve plate can be selected in (layer) at different levels sieve nest, thereby can realize selecting sieve plate according to the needs of material of different grain size screening, and then has realized the equipment versatility, promptly uses the screening of different material.Additionally, Flow of Goods and Materials speed can be realized in the angle of inclination of (layer) at different levels by being provided with sieve nest in frame, and then realizes screening speed.Perhaps, the screen-aperture of sieve plate in (layer) at different levels by selecting sieve nest, can make in (layer) at different levels sieve nest the sieve plate sieve aperture all inequality, thereby can realize varigrained screening, for example the screen-aperture of ground floor sieve nest select the screen-aperture of screen-aperture, second layer sieve nest greater than second layer sieve nest select greater than the 3rd layer of sieve nest screen-aperture, the rest may be inferred, otherwise perhaps.
In technical scheme provided by the present invention, described fine granularity refers to raw meal particle size 10 millimeters and following granularity.Vertical Rack sealing is arranged on the outside of each layer sieve nest (vibratory sieve), and charging gear, defeated material chute, loading head realize hermetically sealed running, and environment is not almost polluted; And do not have additional airflow or extra power-equipment to assist, therefore the noise that produces is significantly less than prior art equipment.
The above; only for the preferable specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claims.
Claims (9)
1. vertical fine granularity screening plant, it comprises Vertical Rack, charging gear, vibratory sieve, defeated material chute, loading head; Charging gear is arranged on the top of Vertical Rack, a plurality of vibratory sieves link to each other and to be connected into " it " font and to be installed in Vertical Rack inside, defeated material chute is arranged on the outside or a plurality of vibratory sieves bottom of Vertical Rack, be used to transport the material that sieves out, loading head is arranged at Vertical Rack one side, is used to collect defeated material chute and transports next material.
2. according to the vertical fine granularity screening plant of claim 1, wherein defeated material chute further comprises screenings chute and oversize chute, the screenings chute is arranged on the outside of Vertical Rack and is used to transport than the fine granularity material, and the oversize chute is arranged on last vibratory sieve bottom.
3. according to the vertical fine granularity screening plant of claim 2, wherein the oversize chute is funnel under the sieve.
4. according to the vertical fine granularity screening plant of claim 1, wherein between defeated material chute and loading head, be provided with and transport belt, be used to transport defeated material chute and transport next material.
5. according to the vertical fine granularity screening plant of claim 4, wherein transport belt and comprise screenings belt (10) and oversize belt (12).
6. according to the vertical fine granularity screening plant in the aforementioned claim, wherein vibratory sieve is the 2-10 layer.
7. according to the vertical fine granularity screening plant in the aforementioned claim, wherein vibratory sieve is the 4-7 layer.
8. according to the vertical fine granularity screening plant in the aforementioned claim, wherein each layer vibratory sieve all can be changed, and the sieve nest of selecting different screen-apertures.
9. vertical fine granularity method for sieving, use therein vertical fine granularity screening plant comprises Vertical Rack, and sieve is funnel (2), ground floor sieve nest (3), the first screenings chute (4), second layer sieve nest (5), the 3rd layer of sieve nest (6), the 4th layer of sieve nest (7), layer 5 sieve nest (8), layer 6 sieve nest (9), screenings belt (10), oversize chute (11), oversize belt (12) down; Ground floor sieve nest (3), second layer sieve nest (5), the 3rd layer of sieve nest (6), the 4th layer of sieve nest (7), layer 5 sieve nest (8), layer 6 sieve nest (9) all is inclined to " it " font and is installed in the Vertical Rack, the vibratory sieve bottom of ground floor sieve nest (3) connects the vibratory sieve front portion of second layer sieve nest (5), the vibratory sieve bottom of second layer sieve nest (5) connects the vibratory sieve front portion of the 3rd layer of sieve nest (6), the vibratory sieve bottom of the 3rd layer of sieve nest (6) connects the vibratory sieve front portion of the 4th layer of sieve nest (7), and the vibratory sieve bottom of the 4th layer of sieve nest (7) connects the vibratory sieve front portion of layer 5 sieve nest (8), the vibratory sieve bottom of layer 5 sieve nest (8) connects the vibratory sieve front portion of layer 6 sieve nest (9), the vibratory sieve lower tilt of layer 6 sieve nest (9) is arranged on the top of oversize chute (11);
Described vertical fine granularity method for sieving comprises that step is as follows:
1) raw coal (13) is transported to the Vertical Rack top by belt, enters ground floor sieve nest (3);
2) oversize of ground floor sieve nest (3) falls into second layer sieve nest (5) continuation screening, the screenings of ground floor sieve nest (3) enters screenings chute (4) through the funnel that sieves down (2), fall into screenings belt (10), be transported to first loading head through screenings belt (10);
3) material that falls into second layer sieve nest (5) continues to be sized, the oversize of second layer sieve nest (5) falls into the 3rd layer of sieve (6) and continues screening, the screenings of second layer sieve nest (5) enters screenings chute (4) through the funnel that sieves down (2), fall into screenings belt (10), be transported to first loading head through screenings belt (10);
4) material that falls into the 3rd layer of sieve nest (6) continues to be sized, the oversize of the 3rd layer of sieve nest (6) falls into the 4th layer of sieve (7) and continues screening, the screenings of the 3rd layer of sieve nest (6) enters screenings chute (4) through the funnel that sieves down (2), fall into screenings belt (10), be transported to first loading head through screenings belt (10);
5), material is sieved carrying out the 4th layer of sieve nest (7), layer 5 sieve nest (8), layer 6 sieve nest on (9) with the screening step of similar step 3) and step 4);
6) oversize of layer 6 sieve nest (9) falls in the oversize chute (11), enters oversize belt (12) by oversize chute (11), is transported to second loading head.
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| CN2011101594893A CN102294324A (en) | 2011-06-15 | 2011-06-15 | Vertical fine-grained screening device and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103657186A (en) * | 2013-12-13 | 2014-03-26 | 中国神华能源股份有限公司 | Screen separation device for dehydration of fine grains |
| CN104307726A (en) * | 2014-11-06 | 2015-01-28 | 江西庞鑫实业有限公司 | Device for separating impurities of anode mud |
| CN105836430A (en) * | 2016-06-12 | 2016-08-10 | 天津市实达电力设备有限公司 | Material classifying, screening and conveying device |
| CN107262264A (en) * | 2017-06-19 | 2017-10-20 | 青海盐湖工业股份有限公司 | A kind of wet sieving method |
| CN107670967A (en) * | 2017-10-31 | 2018-02-09 | 广东电网有限责任公司电力科学研究院 | A kind of high temperature coal slag sizing screening and waste-heat recovery device |
| CN117735150A (en) * | 2024-01-08 | 2024-03-22 | 江苏中基鸿业矿业科技有限公司 | Quartz sand layered conveying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107262264A (en) * | 2017-06-19 | 2017-10-20 | 青海盐湖工业股份有限公司 | A kind of wet sieving method |
| CN107670967A (en) * | 2017-10-31 | 2018-02-09 | 广东电网有限责任公司电力科学研究院 | A kind of high temperature coal slag sizing screening and waste-heat recovery device |
| CN117735150A (en) * | 2024-01-08 | 2024-03-22 | 江苏中基鸿业矿业科技有限公司 | Quartz sand layered conveying device |
| CN117735150B (en) * | 2024-01-08 | 2024-06-11 | 江苏中基鸿业矿业科技有限公司 | Quartz sand layered conveying device |
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Application publication date: 20111228 |