CN103406270A - Dry method selective solid material two-stage separation device - Google Patents
Dry method selective solid material two-stage separation device Download PDFInfo
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- CN103406270A CN103406270A CN2013103722274A CN201310372227A CN103406270A CN 103406270 A CN103406270 A CN 103406270A CN 2013103722274 A CN2013103722274 A CN 2013103722274A CN 201310372227 A CN201310372227 A CN 201310372227A CN 103406270 A CN103406270 A CN 103406270A
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Abstract
A dry method selective solid material two-stage separation device belongs to the technical field of gravity separation process separation of materials. A first stage separation unit is composed of a fluidized separation bed, wherein an air delivery main pipe connected with a blower is connected with the fluidized separation bed through an air delivery branch pipe; a second stage separation unit is composed of a cyclone separator. The outlet of the bottom of the fluidized separation bed is connected with a high-density material storage bunker, the outlet of the top of the fluidized separation bed is connected with the cyclone separator, the lower outlet of the cyclone separator is connected with the high-density material storage bunker, the upper portion of the cyclone separator is connected with a low-density material storage bunker, and the top of the low-density material storage bunker is connected with a variable frequency induced draft fan through a gas conveying pipeline. The dry method selective solid material two-stage separation device can separate solid mixed materials through a physical method in a dry state, can maintain intrinsic physicochemical properties of the materials, and enables the separated materials to be further used. The whole separation process has an optimal environment-friendly effect. Besides, the dry method selective solid material two-stage separation device is simple in structure and easy to operate and manage, does not need any other separating medium, and is low in costs and applicable to the separation of a majority of materials with different densities.
Description
Technical field
The present invention relates to the selective solid material secondary separation device of a kind of dry method, belong to material gravity separation method separation technology field.
Background technology
In the industry production processes such as metallurgy, electric power, coal, chemical industry, ore dressing, often need to according to certain requirement, divide the different product of hanking by solid material, to meet need of production or to increase its use value.At present, the separation method gone out according to the Difference of the physicochemical properties of different separation purposes and material mainly contains floatation, electromagnetic separation method, gravity separation method etc., these methods all have applicable elements separately, floatation be take surface chemistry and is the subject basis, according to the difference of different material Surface Physical Chemistry character, realizes the sorting of different material; The electromagnetic separation method be take electromagnetism and is the subject basis, goes out different material according to the differential separation of different material magnetic and electric conductivity; Gravity separation method be take hydrodynamics and is the subject basis, according to the density variation of different material, in certain medium, carries out the sorting of material.Every kind of separation method all derives a lot of different technique simultaneously, but the equal more complicated of these technological processes, separation equipment is many, and equipment energy consumption is large, and construction investment is many, is unfavorable for operational management and energy-conserving and environment-protective.
With the example that is separated into of power-generating enterprise's flyash, flyash is coal dust forms after high-temp combustion a kind of composite material like the volcano grey matter, is mainly the solid waste of the industry discharges such as coal-burning power plant, smeltery, chemical industry.By the research to flyash separation and application technology thereof, find, it is one of raw material of department's super quality and competitive price such as building materials, chemical industry, refractory thermal insulating material.
Harmful components in flyash are unburnt carbon granules, and its water imbibition is large, and intensity is low, and easy-weathering is unfavorable for the resource of flyash.Because some reasons on ature of coal and combustion technology make coal dust, can not fully burn, cause the phosphorus content of flyash to increase.Along with industrial expansion, the flyash discharge capacity increases year by year, and the flyash decarburization has not only been saved a large amount of coal resources for country, and has improved the comprehensive utilization value of flyash.
Fly ash charcoal-removing technique mainly contains dry method electric separation and two kinds of methods of wet method flotation at present.
The principle of dry method electric separation is to utilize flyash ash under the high voltage electric field effect different from the electric conductivity of charcoal and separate, its shortcoming is: the rate of recovery is at 60-70%, the problems such as the collection of the Safety Economy Problem of the quick abrasion of screening installation, high pressure positive blower and thin ash and dedusting, restricting further developing of electric separation simultaneously; Electric separation is because de-charcoal efficiency is low, technique is immature, now also do not obtain extensive use.
The de-charcoal of wet method flotation be utilize flyash and coal cinder surface hydrophilic performance difference and by a kind of method of its differentiation, be applicable to the flyash of wet method discharge, the rate of recovery is higher, but its shortcoming is: flyash is through obtaining high-quality fly ash afterwards through concentrated, dehydration, oven dry, sorting, grinding after flotation, this process complexity, equipment energy consumption increases.
Summary of the invention
In order to solve problems of the prior art, the invention provides the selective solid material secondary separation device of a kind of dry method.This device increases cyclone separator and frequency converting induced draft fan on the basis of the selective separator for solid materials of dry method, by with the two-stage of cyclone separator, coordinating, the Applied Physics method makes the case of low density loads composition in the solids mixing material carry out twice separation, to reach efficient separative efficiency.By fluidisation in the selective separator for solid materials of dry method, separate one or more snippets separation of bed, its separative efficiency can reach more than 60%; Through the second-order separation of cyclone separator, separative efficiency can be brought up to more than 80%.
Technical scheme of the present invention is: the selective solid material secondary separation device of a kind of dry method, comprise solids mixing material warehouse, dispenser, fluidisation separation bed, air blast and air conveying supervisor, solids mixing material warehouse separates bed by dispenser and fluidisation and is connected, and also comprises cyclone separator, high density material warehouse and case of low density loads warehouse.The air that described air blast connects carries supervisor to carry the fluidisation that arm connects to separate bed formation first stage separation device by air, wherein a road air is carried arm to connect case by air to be connected with the outlet conduit of dispenser, the remaining air conveying arm bellows bottom fluidisation is separated bed respectively is connected, the bellows top arranges air distribution plate, air distribution plate top arranges one or more grids with the same size rectangular opening, grid separates bed by fluidisation and is divided into one or more snippets, and every section one of correspondence is positioned at the bellows below air distribution plate.Second-stage separation device adopts a cyclone separator.Fluidisation is separated the bed outlet at bottom and is connected high density material warehouse by lower conveyance conduit, top exit connects cyclone separator by the air channel, top, the lower part outlet of cyclone separator is connected with high density material warehouse, top is connected with the case of low density loads warehouse by upper conveyance conduit, and the top of case of low density loads warehouse connects frequency converting induced draft fan by gas pipeline.
Described air is carried on arm flow control valve and flowmeter is installed.
Described cyclone separator top arranges one and is communicated with, stretches into the interior central tube of cyclone separator with upper conveyance conduit, and central tube adopts the adjustment structure moved up and down.
The air that described air blast is carried separates the bellows of bed bottom by fluidisation, then the air distribution plate top blast solid material of flowing through, and makes solid material be fluidization within fluidisation is separated bed.
Adopt technique scheme, solid material refers to two or more solids mixing materials of different densities.Solid material carries out the one-level separation in the selective separator for solid materials of dry method after, the material composition that density is higher enters high density material warehouse, low-density, the material composition that particle is little upwards flows, by the air channel, top, directly enter cyclone separator and carry out the second-order separation, the material composition that in cyclone separator, density is higher is because the effect that is subject to centrifugal force is rotated down mobile, from the cyclone separator outlet at bottom, be separated and enter high density material warehouse, the material composition that density is lower focuses on the whirlpool center gradually, with air, enter central tube, from the cyclone separator top exit, flow out and enter the case of low density loads warehouse.When the air velocity in cyclone separator was constant, the position of central tube can move up and down adjusting according to density and the granularity critical point of target separation of material; The air-introduced machine of configuration frequency converter can be regulated air inducing pressure to change the whirlwind flow velocity according to the physical property situation of change that enters material in cyclone separator, reaches best separating effect.
Effect of the present invention and benefit are: the selective solid material secondary separation device of this dry method, the air that first stage separation device is connected by air blast carries supervisor to carry the fluidisation separation bed that arm connects to form by air, and second-stage separation device adopts a cyclone separator.Fluidisation is separated the bed outlet at bottom and is connected high density material warehouse by lower conveyance conduit, top exit connects cyclone separator by the air channel, top, the lower part outlet of cyclone separator is connected with high density material warehouse, top is connected with the case of low density loads warehouse by upper conveyance conduit, and the top of case of low density loads warehouse connects frequency converting induced draft fan by gas pipeline.This device Applied Physics method under dry state is separated the solids mixing material, can not destroy the form of water-soluble substances in material, can keep the original physicochemical properties of material, can further be utilized through the material separated.And whole separation process produces without any solid, gas, liquid debris, avoids secondary pollution, has best environment protecting.Simultaneously, this device simple in structure, operational management is easy, without dropping into other separating medium, with low cost, adapts to the separation of most different densities materials.
The accompanying drawing explanation
Fig. 1 is the work system figure of the selective solid material secondary separation device of a kind of dry method.
In figure: 1, solids mixing material warehouse, 2, dispenser, 3, air connects case, 4, air carries supervisor, 4a, air carry arm, 4b, flow control valve, 4c, flowmeter, 5, air blast, 6, fluidisation is separated bed, 6a, grid, 6b, air distribution plate, 6c, bellows, 7, air channel, top, 8, lower conveyance conduit, 9, high density material warehouse, 10, case of low density loads warehouse, 11, cyclone separator, 11a, central tube, 11b, upper conveyance conduit, 12, frequency converting induced draft fan, 12a, gas pipeline.
The specific embodiment
Fig. 1 shows the work system figure of the selective solid material secondary separation device of a kind of dry method.In figure, the selective solid material secondary separation device of dry method comprises solids mixing material warehouse 1, dispenser 2, fluidisation separation bed 6, air blast 5, air conveying supervisor 4, cyclone separator (11), high density material warehouse 9 and case of low density loads warehouse 10, and solids mixing material warehouse 1 separates bed 6 by dispenser 2 and fluidisation and is connected.
The air that first stage separation device is connected by air blast 5 carries supervisor 4 to carry the fluidisation separation bed 6 that arm 4a connects to form by air, air is carried on arm 4a flow control valve 4b and flowmeter 4c is installed, wherein a road air is carried arm 4a to connect case 3 by air to be connected with the outlet conduit of dispenser 2, remaining air carries arm 4a with the bellows 6c that fluidisation is separated bed 6 bottoms, to be connected respectively, bellows 6c top arranges air distribution plate 6b, air distribution plate 6b top arranges one or more 6a of grid with the same size rectangular opening, grid 6a separates bed 6 by fluidisation and is divided into one or more snippets, every section one of correspondence is positioned at the bellows 6c below air distribution plate 6b.
Second-stage separation device adopts a cyclone separator 11, and fluidisation is separated bed 6 outlet at bottoms and connected high density material warehouse 9 by lower conveyance conduit 8, and top exit connects cyclone separator 11 by air channel, top 7.The lower part outlet of cyclone separator 11 is connected with high density material warehouse 9, top is connected with case of low density loads warehouse 10 by upper conveyance conduit 11b, cyclone separator 11 tops arrange one and are communicated with, stretch into the interior central tube 11a of cyclone separator 11 with upper conveyance conduit 11b, and central tube 11a adopts the adjustment structure moved up and down.The top of case of low density loads warehouse 10 connects frequency converting induced draft fan 12 by gas pipeline 12a.
The air that air blast 5 is carried separates the bellows 6c of bed 6 bottoms by fluidisation, then the air distribution plate 6b top blast solid material of flowing through, and makes solid material be fluidization within fluidisation is separated bed 6.
Adopt technique scheme, cyclone separator 11 tangentially is connected with air channel, top 7 outlets that fluidisation is separated bed 6, solid material carries out the one-level separation in fluidisation separation bed 6 after, the material composition that density is higher enters high density material warehouse 9, low-density, the material composition that particle is little upwards flow, and by air channel, top 7, directly enter cyclone separator 11 and carry out the second-order separation.The material composition that density is higher is rotated down and flows into high density material warehouse 9 under the whirlwind effect, the material composition that density and particle are less is pooled to central tube 11a center with swirling eddy, with air, flow out from central tube 11a, then enter case of low density loads warehouse 10 through upper conveyance conduit 11b.When the air velocity in cyclone separator 11 is constant, by moving up and down density and the granularity critical point of central tube 11a to adapt to the target separation of material; Frequency converting induced draft fan 12 is connected with case of low density loads warehouse 10 rear portions by gas pipeline 12a, by stepless frequency conversion, regulate air inducing pressure and can change the whirlwind flow velocity in cyclone separator 11, to adapt to the physical property situation of change of different component material, reach best separating effect.
Claims (4)
1. selective solid material secondary separation device of dry method, comprise solids mixing material warehouse (1), dispenser (2), fluidisation is separated bed (6), air blast (5) and air are carried supervisor (4), solids mixing material warehouse (1) separates bed (6) by dispenser (2) and fluidisation and is connected, it is characterized in that: also comprise cyclone separator (11), high density material warehouse (9) and case of low density loads warehouse (10), the air that described air blast (5) connects carries supervisor (4) to carry the fluidisation separation bed (6) that arm (4a) connects to form first stage separation device by air, wherein a road air is carried arm (4a) to connect case (3) by air to be connected with the outlet conduit of dispenser (2), remaining air conveying arm (4a) bellows (6c) bottom fluidisation is separated bed (6) respectively is connected, bellows (6c) top arranges air distribution plate (6b), air distribution plate (6b) top arranges one or more grids with the same size rectangular opening (6a), grid (6a) separates bed (6) by fluidisation and is divided into one or more snippets, every section one of correspondence is positioned at the bellows (6c) below air distribution plate (6b), second-stage separation device adopts a cyclone separator (11), fluidisation is separated bed (6) outlet at bottom and is connected high density material warehouse (9) by lower conveyance conduit (8), top exit connects cyclone separator (11) by air channel, top (7), the lower part outlet of cyclone separator (11) is connected with high density material warehouse (9), top is connected with case of low density loads warehouse (10) by upper conveyance conduit (11b), and the top of case of low density loads warehouse (10) connects frequency converting induced draft fan (12) by gas pipeline (12a).
2. the selective solid material secondary separation device of a kind of dry method according to claim 1, is characterized in that: on described air conveying arm (4a), flow control valve (4b) and flowmeter (4c) are installed.
3. the selective solid material secondary separation device of a kind of dry method according to claim 1, it is characterized in that: described cyclone separator (11) top arranges one and is communicated with, stretches into the interior central tube (11a) of cyclone separator (11) with upper conveyance conduit (11b), and central tube (11a) adopts the adjustment structure moved up and down.
4. the selective separator for solid materials of a kind of dry method according to claim 1, it is characterized in that: the air that described air blast (5) is carried separates the bellows (6c) of bed (6) bottom by fluidisation, air distribution plate (6b) the top blast solid material of flowing through again, make solid material be fluidization within fluidisation is separated bed (6).
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| CN2013103722274A CN103406270A (en) | 2013-08-24 | 2013-08-24 | Dry method selective solid material two-stage separation device |
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Cited By (6)
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| CN103657412A (en) * | 2013-12-13 | 2014-03-26 | 中能东讯新能源科技(大连)有限公司 | Calcium-oxide-containing flying ash separation and digestion all-in-one device |
| CN104550020A (en) * | 2014-12-11 | 2015-04-29 | 南京航空航天大学 | Device and method for automatically separating three or more than three materials |
| CN105647555A (en) * | 2015-12-30 | 2016-06-08 | 北京华石联合能源科技发展有限公司 | Coal gasification technological method |
| CN108271594A (en) * | 2018-03-26 | 2018-07-13 | 南京林业大学 | A kind of bamboo grove rice chaff collection method and its modularization collection device |
| CN108465563A (en) * | 2017-02-23 | 2018-08-31 | 中国石油化工股份有限公司 | Solid material dry separation device and method |
| WO2022001712A1 (en) * | 2020-07-03 | 2022-01-06 | 北京蓝鼎科创装备科技有限公司 | Fluidized bed |
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| CN108271594A (en) * | 2018-03-26 | 2018-07-13 | 南京林业大学 | A kind of bamboo grove rice chaff collection method and its modularization collection device |
| WO2022001712A1 (en) * | 2020-07-03 | 2022-01-06 | 北京蓝鼎科创装备科技有限公司 | Fluidized bed |
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Application publication date: 20131127 |