CN103495555A - Concrete drying aggregate continuous multilevel winnowing classification box, device and system - Google Patents

Concrete drying aggregate continuous multilevel winnowing classification box, device and system Download PDF

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Publication number
CN103495555A
CN103495555A CN201310456698.3A CN201310456698A CN103495555A CN 103495555 A CN103495555 A CN 103495555A CN 201310456698 A CN201310456698 A CN 201310456698A CN 103495555 A CN103495555 A CN 103495555A
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winnowing
selection
classification case
aggregate
winnowing classification
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CN103495555B (en
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王建军
彭训民
李兰儒
王红伟
吴善试
郭靖
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XINJIANG YUXIN CONCRETE Co Ltd
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XINJIANG YUXIN CONCRETE Co Ltd
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Abstract

The invention discloses a concrete drying aggregate continuous multilevel winnowing classification box which comprises a box body. The interior of the box body is divided into an upper aggregate classification box and a lower aggregate classification box through a partition board, a plurality of classification material ports corresponding to a plurality of discharge ports are distributed in the partition board, and a check valve opened towards the lower winnowing classification box is arranged at each classification material port. The invention further discloses a device and system using the continuous multilevel winnowing classification box. The concrete drying aggregate continuous multilevel winnowing classification box can carry out multilevel winnowing classification on the drying aggregate continuously, can sort the aggregate in a certain particle-sized range in a concentrated mode and removes soil and mountain flour attached to the surface of the aggregate, the aggregate is classified cleanly, the steps of washing and dehydration can be omitted, the technological process is shortened, the cost is reduced, and the quality of finished concrete is improved. The system is achieved in the sealed upper winnowing classification box and the lower winnowing classification box, and no-powder production operation is achieved. The concrete drying aggregate continuous multilevel winnowing classification box can form a circulated type winnowing system, energy consumption is reduced, and finally the purpose that energy is saved, carbon is low and environment is protected is achieved.

Description

The dry aggregate continuous multi-stage of a kind of concrete selection by winnowing classification case, Apparatus and system
Technical field
The present invention relates to industrial production every profession and trade drying solid material and sort the classification field, particularly classification case, the Apparatus and system of the classification of the dry aggregate selection by winnowing of a kind of concrete.
Background technology
At concrete production field, that country advocates energetically is high-quality, high-quality, concrete production technology cheaply, thereby reaches energy-saving and cost-reducing purpose.And country also encourages environmental protection, energy-saving production energetically, make every effort to enhance productivity, reduce production costs, reduce man-made noise, reduce dust pollution, improve haze weather.
Current industrial circle every profession and trade major part still adopts traditional vibratory sieve to carry out classification to dried material and sorts.Especially in the commerical ready-mixed concrete configuration is produced, the overwhelming majority utilizes vibratory sieve to carry out the classification choosing to aggregates such as sand, stone and mineral additives.Because this screening mode is that sieve aperture according to vibratory sieve carries out particle diameter and sorts, can only obtain limited required kind, hierarchical level is lower, can not meet the requirement to different aggregate size gratings of commerical ready-mixed concrete high-quality, high-level production technology far away.Moreover, owing in natural sand, stone or the aggregates such as Machine-made Sand, stone, itself just being entrained with dust, earth etc. affect the harmful components of concrete quality, utilize vibratory sieve to sort the aggregates such as sand, building stones and mineral additive, larger dust pollution will inevitably be brought, earth that sand, stone surface adheres to, stone flour etc. can not be effectively sloughed.
Because the vibratory sieve screening once is difficult to realize the multistage classification that sorts, its production efficiency is low, and kind is single.In order to meet concrete production configuration technological requirement, to have to carry out secondary and sort classification, this with regard to needs, drops into human and material resources and vehicle carries out Secondary Transport, will inevitably improve the production cost of aggregate, that is improve the production cost of commerical ready-mixed concrete.
In order to address the above problem, generally adopt at present the dry aggregate selection by winnowing of concrete hierarchy system.As shown in Figure 1 to Figure 3, this selection by winnowing hierarchy system mainly comprises air blast 1a, selection by winnowing classification case 2a, cyclonic filter equipment 3a and the control of dust filter plant 4a accepted successively.Have charging aperture on the top tank wall of selection by winnowing classification case 2a, on the under casing wall of selection by winnowing classification case 2a, have a plurality of discharging openings, each discharging opening correspondence respectively is provided with rewinding storehouse 21a, and rewinding storehouse 21a is divided into one-level rewinding storehouse, secondary rewinding storehouse, three grades of rewinding storehouses etc. successively.
The selection by winnowing grading technology is as follows: air blast 1a blows in selection by winnowing classification case 2a, and combined aggregate (without selection by winnowing classification) is the heavy curtain shape by the charging aperture on selection by winnowing classification case 2a and enters in selection by winnowing classification case 2a.Combined aggregate in selection by winnowing classification case 2a is subject to resequencing in selection by winnowing classification case 2a, assembling by the quality size after gas shock, passively is classified into separated aggregate identical or close proportion, different-grain diameter level scope.The particle diameter of separated aggregate is assembled from big to small, correspondence is divided into coarse aggregate in one-level coarse aggregate, secondary, three grades of fine aggregates etc., and drop to corresponding discharging opening place, by after this discharging opening respectively correspondence fall in one-level rewinding storehouse, secondary rewinding storehouse, three grades of rewinding storehouses, thereby realized that classification sorts.
But, after the sorting of existing selection by winnowing hierarchy system, still there is following problem in the particle diameter of resulting aggregates at different levels: the one, concentrate not, aggregate content in the aggregates at different levels that obtain after selection by winnowing in same particle size range is on the low side, can not meet the grating requirement of concrete configuration production technology to different-grain diameter level aggregate.The 2nd, the aggregate after selection by winnowing still adheres to and contains a certain amount of stone flour, earth, and when ready-mixed concrete, stone flour and earth can reduce the concrete quality of finished product.
Summary of the invention
In view of this, the object of the present invention is to provide the dry aggregate continuous multi-stage of a kind of concrete selection by winnowing classification case, can carry out continuously multistage pneumatic separation, the particle diameter of separated aggregate is concentrated.
The object of the invention is to also provide the dry aggregate continuous multi-stage of a kind of concrete selection by winnowing grading plant, can realize rubbing combined aggregate and the classification of continuous multi-stage selection by winnowing, can make the particle diameter of separated aggregate concentrate, can reduce again the content of earth in separated aggregate, stone flour and dust.
The object of the invention is to also provide the dry aggregate continuous multi-stage of a kind of concrete selection by winnowing hierarchy system, can realize rubbing combined aggregate, the classification of continuous multi-stage selection by winnowing and pump drainage filtered air, can make the particle diameter of separated aggregate concentrate, can at utmost reduce again after classification the content of earth, stone flour and dust in different-grain diameter level aggregate, without carrying out again follow-up washing and dehydration procedure, reduce technological process, greatly reduce the aggregate preparation cost, can also reduce atmosphere pollution.
In order to reach above-mentioned purpose, solution of the present invention is:
The dry aggregate continuous multi-stage of a kind of concrete selection by winnowing classification case, comprise casing, the inside of casing becomes upper selection by winnowing classification case and lower selection by winnowing classification case by baffle for separating, one end of upper selection by winnowing classification case and lower selection by winnowing classification case correspondence respectively is provided with enterprising air port and lower air inlet, and the other end of upper selection by winnowing classification case and lower selection by winnowing classification case correspondence respectively is provided with air outlet and lower air outlet; Have charging aperture near enterprising air port on the top tank wall of upper selection by winnowing classification case, be laid with a plurality of discharging openings along wind direction on the under casing wall of lower selection by winnowing classification case, on dividing plate, corresponding a plurality of discharging openings are laid with a plurality of classification material mouths, and classification material mouth place is provided with the check valve of opening towards lower selection by winnowing classification case.
Described dividing plate is towards a plurality of funnelform upper collecting bins of the surface of described upper selection by winnowing classification case formation protruding upward, and on each, the corresponding described classification material mouth of collecting bin difference arranges.
The dry aggregate continuous multi-stage of a kind of concrete selection by winnowing grading plant, comprise the material-falling hopper of accepting successively, can rub the deslimer of rubbing of aggregate, continous way multistage pneumatic separation classification case and rewinding storehouse; Wherein, continous way multistage pneumatic separation classification case comprises casing, the inside of casing becomes upper selection by winnowing classification case and lower selection by winnowing classification case by baffle for separating, one end of upper selection by winnowing classification case and lower selection by winnowing classification case correspondence respectively is provided with enterprising air port and lower air inlet, and the other end of upper selection by winnowing classification case and lower selection by winnowing classification case correspondence respectively is provided with air outlet and lower air outlet; Have charging aperture near enterprising air port on the top tank wall of upper selection by winnowing classification case, the corresponding setting in charging aperture place rubbed deslimer, on the under casing wall of lower selection by winnowing classification case, along wind direction, is laid with a plurality of discharging openings, and a plurality of discharging openings place correspondence respectively arranges the rewinding storehouse; On dividing plate, corresponding a plurality of discharging openings are laid with a plurality of classification material mouths, and classification material mouth place is provided with the check valve of opening towards lower selection by winnowing classification case.
The described deslimer of rubbing comprises casing, emery wheel and driving mechanism, the driving mechanism emery wheel that is in transmission connection, and emery wheel is arranged in casing in revolvable mode; The wheel face of emery wheel is provided with main mill layer, and on the internal box wall of casing, corresponding main mill layer is provided with secondary mill layer, a plurality of protruding mill section that the outer surface of main mill layer and secondary mill layer protrudes respectively that formation rubs that aggregate uses.
The described deslimer of rubbing also comprises clearance adjustment mechanism, and clearance adjustment mechanism comprises adjusting rod and spring, and an end of adjusting rod is positioned at outside casing, stretches in described casing in the mode of pointing to emery wheel after the sheathed spring in this end and supports on described secondary mill layer.
The described deslimer of rubbing comprises casing, emery wheel and driving mechanism, the driving mechanism emery wheel that is in transmission connection, and emery wheel is two, two emery wheels are arranged in casing in the mode of the aggregate that can rotate and knead; The wheel face of emery wheel is provided with main mill layer, and the outer surface of main mill layer protrudes and forms a plurality of protruding mill section that stone roller is rubbed to aggregate uses.
Described emery wheel is the windward type discharging towards described enterprising air port rotation.
The dry aggregate continuous multi-stage of a kind of concrete selection by winnowing hierarchy system, comprise and accept successively continous way multistage pneumatic separation grading plant, cyclonic filter equipment and control of dust filter plant; Wherein, continous way multistage pneumatic separation grading plant comprises the material-falling hopper of accepting successively, can rub the deslimer of rubbing of aggregate, continous way multistage pneumatic separation classification case and rewinding storehouse; Continous way multistage pneumatic separation classification case comprises casing, the inside of casing becomes upper selection by winnowing classification case and lower selection by winnowing classification case by baffle for separating, one end of upper selection by winnowing classification case and lower selection by winnowing classification case correspondence respectively is provided with enterprising air port and lower air inlet, and the other end of upper selection by winnowing classification case and lower selection by winnowing classification case correspondence respectively is provided with air outlet and lower air outlet; Have charging aperture near enterprising air port on the top tank wall of upper selection by winnowing classification case, the corresponding setting in charging aperture place rubbed deslimer, on the under casing wall of lower selection by winnowing classification case, along wind direction, is laid with a plurality of discharging openings, and a plurality of discharging openings place correspondence respectively arranges the rewinding storehouse; On dividing plate, corresponding a plurality of discharging openings are laid with a plurality of classification material mouths, and classification material mouth place is provided with the check valve of opening towards lower selection by winnowing classification case; Enterprising air port and lower air inlet are communicated with air blast by airduct respectively; Perhaps enterprising air port is communicated with air-introduced machine by airduct; Perhaps enterprising air port is communicated with air-introduced machine by airduct, and lower air inlet is communicated with air blast by airduct; Perhaps enterprising air port is communicated with air blast by airduct, and lower air inlet is communicated with air-introduced machine by airduct.
Be provided with the adjusted plate of regulating described upper selection by winnowing classification case air quantity and blast between described enterprising air port and described charging aperture; Be provided with the lower adjustable plate of regulating lower selection by winnowing classification case air quantity and blast between described lower air inlet and described classification material mouth.
After adopting said structure, the dry aggregate continuous multi-stage of a kind of concrete of the present invention selection by winnowing classification case has following beneficial effect: combined aggregate is the free-falling of heavy curtain shape from charging aperture and enters in casing, can be in the wind to select in classification case and lower selection by winnowing classification case by wind energy and carry out continuously the two-stage selection by winnowing, make combined aggregate assemble rapidly classification by its grain-size grade scope, and discharge from each discharging opening is corresponding, can improve dry aggregate gradation and sort production efficiency; And the earth be mingled with in combined aggregate and stone flour be after continuous two-stage selection by winnowing, along with air respectively from air outlet and lower air outlet discharge casing, can reduce earth and stone flour in separated aggregate.
After adopting said structure, the dry aggregate continuous multi-stage of a kind of concrete of the present invention selection by winnowing grading plant has following beneficial effect: the first step, by rubbing deslimer, combined aggregate is rubbed, and can peel off earth, the stone flour of combined aggregate surface adhesion; Perhaps the combined aggregate be sticked together is ground to loose; Second step, be the heavy curtain shape through the combined aggregate of rubbing and enter casing, is in the wind to select in classification case and lower selection by winnowing classification case and carries out continuously the two-stage selection by winnowing.By rubbing deslimer, the earth of aggregate surface bonding is rubbed into to dust and discharged casing by upper air outlet and lower air outlet, separated aggregate is clean, can exempt washing and dehydration, and shortened process, reduce costs, and improves the concrete quality of finished product.And owing to utilizing wind energy to carry out continuously the two-stage selection by winnowing to combined aggregate, assemble rapidly classification by aggregate size level scope, can improve dry aggregate gradation and sort production efficiency, especially in the concrete configuration is produced, can realize flexible gradation in larger aggregate gradation scope according to the concrete configuration technique of difference requirement and strength grade, can improve concrete quality, save cement consumption, reduce manufacturing cost.
After adopting said structure, the dry aggregate continuous multi-stage of a kind of concrete of the present invention selection by winnowing hierarchy system has following beneficial effect: the first step, by rubbing deslimer, combined aggregate is rubbed, can be peeled off the earth of aggregate surface, or the aggregate be sticked together is ground to loose; Second step, be the heavy curtain shape through the combined aggregate of rubbing and enter casing, is in the wind to select in classification case and lower selection by winnowing classification case and carries out continuously the two-stage selection by winnowing.Simultaneously, collect the dust produced in the selection by winnowing process by cyclonic filter equipment and control of dust filter plant, reach environmental protection and improve the purpose of production environment.Native system removes by rubbing deslimer earth, the stone flour that aggregate surface adheres to; Can exempt washing and dehydration, shortened process, reduce costs, and improves the concrete quality of finished product.Utilize air blast to carry out continuously the two-stage selection by winnowing to combined aggregate, improve dry aggregate gradation and sort efficiency, and then improve concrete quality, save cement consumption, environmental.In addition, native system can also form a circulating aidr bells blast system, can make the particle diameter of separated aggregate concentrate, can reduce the dust in separated aggregate again, can also save the energy, reduce energy consumption, reduce discharge, reduce atmosphere pollution, finally reach the purpose of energy-conservation, low-carbon (LC), environmental protection.
The accompanying drawing explanation
The structural representation that Fig. 1 is the dry aggregate selection by winnowing of existing concrete hierarchy system;
The structural representation one that Fig. 2 is the selection by winnowing classification case in existing selection by winnowing hierarchy system;
The structural representation two that Fig. 3 is the selection by winnowing classification case in existing selection by winnowing hierarchy system;
The structural representation one that Fig. 4 a is the dry aggregate continuous multi-stage of a kind of concrete of the present invention selection by winnowing hierarchy system;
The structural representation two that Fig. 4 b is the dry aggregate continuous multi-stage of a kind of concrete of the present invention selection by winnowing hierarchy system;
The structural representation three that Fig. 5 is the dry aggregate continuous multi-stage of a kind of concrete of the present invention selection by winnowing hierarchy system;
The structural representation that Fig. 6 is the dry aggregate continuous multi-stage of a kind of concrete of the present invention selection by winnowing grading plant;
The working state schematic representation that Fig. 7 is the dry aggregate continuous multi-stage of a kind of concrete of the present invention selection by winnowing grading plant;
The structural representation of another embodiment that Fig. 8 is the dry aggregate continuous multi-stage of a kind of concrete of the present invention selection by winnowing grading plant.
In figure:
Air blast 1a selection by winnowing classification case 2a
Rewinding storehouse 21a cyclonic filter equipment 3a
Control of dust filter plant 4a continous way multistage pneumatic separation grading plant 10
Material-falling hopper 11 is rubbed deslimer 12
The secondary mill layer of casing 121 121a
The main mill layer of emery wheel 122 122a
Clearance adjustment mechanism 123 adjusting rods 124
Spring 125 continous way multistage pneumatic separation classification casees 13
Selection by winnowing classification case 131a on casing 131
The enterprising air port 131c of lower selection by winnowing classification case 131b
Air inlet 131e under upper air outlet 131d
Lower air outlet 131f charging aperture 131g
The upper collecting bin 131i of discharging opening 131h
Dividing plate 132 classification material mouth 132a
Check valve 132b rewinding storehouse 14
One-level rewinding storehouse 14a secondary rewinding storehouse 14b
Three grades of rewinding storehouse 14c level Four rewinding storehouse 14d
Pyatyi rewinding storehouse 14e air blast 20
21 times adjustable plates 22 of adjusted plate
Cyclonic filter equipment 30 control of dust filter plants 40
Air-introduced machine 50
The specific embodiment
In order further to explain technical scheme of the present invention, below by specific embodiment, the present invention will be described in detail.
Embodiment mono-
As shown in Fig. 4 a to Fig. 8, the dry aggregate continuous multi-stage of a kind of concrete of the present invention selection by winnowing hierarchy system, comprise continous way multistage pneumatic separation grading plant 10, air blast 20, cyclonic filter equipment 30 and the control of dust filter plant 40 accepted successively.
Continous way multistage pneumatic separation grading plant 10 comprises the material-falling hopper 11 accepted successively, rubs deslimer 12, continous way multistage pneumatic separation classification case 13 and rewinding storehouse 14.
Material-falling hopper 11 is bucket-shaped, and the charging aperture that correspondence is rubbed deslimer 12 is arranged on the top of rubbing deslimer 12.Aggregate is thrown in material-falling hopper 11 by other feed mechanisms, then enters and rubs in deslimer 12.
Rub deslimer 12 and can adopt following two kinds of embodiments.Wherein a kind of embodiment as shown in Figure 6 and Figure 7, is rubbed deslimer 12 and is comprised casing 121, emery wheel 122, clearance adjustment mechanism 123 and driving mechanism.
The bottom of casing 121 has discharging opening, and this discharging opening is communicated with the charging aperture 131g on upper selection by winnowing classification case 131a.Driving mechanism is arranged on outside casing 121, and the output shaft of driving mechanism stretches in casing 121 and the emery wheel 122 that is in transmission connection, and emery wheel 122 is arranged in casing 121 in revolvable mode.
The wheel face of emery wheel 122 is provided with main mill layer 122a, and on the internal box wall of casing 121, corresponding main mill layer 122a is provided with secondary mill layer 121a, and secondary mill layer 121a is bending and is around in outside main mill layer 122a.The surface of main mill layer 122a and secondary mill layer 121a corresponding protrusion the respectively forms a plurality of protruding mill section, and protruding mill section is small raised lump shape, bulge shape or fin shape, but protruding mill section both can the moulding of one-body molded also separable assembled.Can the be one-body molded main mill layer of emery wheel 122 122a, or emery wheel 122 and a main mill layer 122a be split type, and a main mill layer 122a is set on the wheel face of emery wheel 122.When a secondary mill layer 121a rotates, rub, push aggregate together with main mill layer 122a and secondary protruding mill section of grinding on layer 121a as main mill layer 122a, the earth bondd on aggregate surface is rubbed with the hands, can also rub scattered the aggregate be bonded together.As a preferred embodiment of the present invention, emery wheel 122 rotates towards enterprising air port 131c, aggregate after rubbing like this, push, milling is the windward type discharging, and by the discharging opening 131h of casing 121 bottoms, the charging aperture 131g on upper selection by winnowing classification case 131a, enters in upper selection by winnowing classification case 131a successively.By improving the windward side of aggregate, can improve the selection by winnowing classifying capability.
Clearance adjustment mechanism 123 comprises adjusting rod 124 and spring 125.One end of adjusting rod 124 is positioned at outside casing 121, stretches in casing 121 in the mode of pointing to emery wheel 122 after the sheathed spring 125 in this end and supports on pair mill layer 121a.Main mill layer 122a and secondary mill layer 121a can adopt respectively high-abrasive material to make.Particle size and clean level according to aggregate, screw out accordingly, precession adjusting rod 124, make the gap between main mill layer 122a and secondary mill layer 121a correspondingly become large, perhaps make the end of adjusting rod 124 promote secondary mill layer 121a inwards near main mill layer 122a, to turn the gap between main mill layer 122a and secondary mill layer 121a down.By clearance adjustment mechanism 123, can improve and rub effect.
Another embodiment as shown in Figure 8, is rubbed deslimer 12 and is comprised casing 121, emery wheel 122 and driving mechanism.Emery wheel 122 is two, and two emery wheels 122 are arranged in casing 121 in the mode that can rotate and knead, and the output shaft of driving mechanism stretches in casing 121 and one of them emery wheel 122 that is in transmission connection.The wheel face of emery wheel 122 protrudes respectively and forms a plurality of protruding mill section rub that aggregate uses, and this protruding mill section as previously mentioned, both can be small raised lump shape and also can be the fin shape, but both can form by one-body molded also separable assembled.
Continous way multistage pneumatic separation classification case 13 comprises casing 131, by dividing plate 132, the interior separation of casing 131 is become to upper selection by winnowing classification case 131a and lower selection by winnowing classification case 131b.The end of upper selection by winnowing classification case 131a and lower selection by winnowing classification case 131b correspondence respectively is provided with enterprising air port 131c and lower air inlet 131e, and the other end of upper selection by winnowing classification case 131a and lower selection by winnowing classification case 131b correspondence respectively is provided with air outlet 131d and lower air outlet 131f.Upper air outlet 131d and lower air outlet 131f are communicated with cyclonic filter equipment 30 by airduct respectively.
Have charging aperture 131g near enterprising air port 131c on the top tank wall of upper selection by winnowing classification case 131a, the corresponding discharging opening of rubbing deslimer 12 that is communicated with of charging aperture 131g.Be laid with a plurality of discharging opening 131h along wind direction on the under casing wall of lower selection by winnowing classification case 131b, a plurality of discharging opening 131h place correspondence respectively arranges rewinding storehouse 14.Rewinding storehouse 14 can be according to the particle diameter of aggregate by greatly to being divided into one-level rewinding storehouse 14a, secondary rewinding storehouse 14b, three grades of rewinding storehouse 14c, level Four rewinding storehouse 14d, Pyatyi rewinding storehouse 14e etc.
On dividing plate 132, corresponding a plurality of discharging opening 131h are laid with a plurality of classification material mouth 132a, classification material mouth 132a place is provided with the check valve 132b opened towards lower selection by winnowing classification case 131b, avoid the blast in lower selection by winnowing classification case 131b may be greater than selection by winnowing classification case 131a, and form blowback, affect separating effect.Check valve 132b can realize the unidirectional function of opening under certain pressure-acting, and check valve 132b can adopt existing conventional structure, and its concrete structure and operation principle thereof are prior art, as known technology, does not repeat them here.Towards the surface of upper selection by winnowing classification case 131a, the taper that is protruding upward forms a plurality of funnelform upper collecting bin 131i to dividing plate 132, and on each, the respectively corresponding classification material mouth 132a of collecting bin 131i arranges.
The air outlet of air blast 20 is communicated with lower air inlet 131e by airduct.
The equipment of two filtration use is set in the present invention, the one, cyclonic filter equipment 30, another is control of dust filter plant 40.Cyclonic filter equipment 30 is used for filtering than coarse granule level travel fatigue, and with the load of the control of dust filter plant 40 that alleviates back, control of dust filter plant 40 adopts the sack cleaner structures, and the finally dedusting of this structure, mainly process relatively fine particle level dust.
Cyclonic filter equipment 30 can adopt two kinds of conventional structures.A kind of is spiral shell shell mould cyclonic filter equipment, and it utilizes centrifugal principle to separate dust.Spiral shell shell mould cyclonic filter equipment mainly comprises Whirlwind barrel, is arranged on the flue-dust retainer of Whirlwind barrel bottom, and the spiral case (or collection blast cap) that is arranged on the Whirlwind barrel top, sets out air port on spiral case.Another kind is common cyclone dust collectors, can be from air-flow separating solids and liquid particle, or from liquid separating solid particles.Common cyclone dust collectors mainly comprise cylinder, are arranged on the ash bucket of cylinder bottom, and the cone that is arranged on the cylinder top.Have air inlet on cylinder, have air outlet on cone.The air inlet of cyclonic filter equipment 30 is communicated with air outlet 131d and lower air outlet 131f by airduct respectively, and the air outlet of cyclonic filter equipment 30 is communicated with the air inlet of control of dust filter plant 40 by airduct.In addition, the air outlet place of control of dust filter plant 40 also can arrange air-introduced machine 50, to improve pump drainage wind, the filter effect of control of dust filter plant 40.
Control of dust filter plant 40 also can adopt conventional structure, and it mainly comprises filter box and is arranged on a plurality of filtration string bags in filter box.The air inlet that gas is offered from the filter box bottom enters, and then enters the filtration string bag, by the outlet of filtering the string bag, discharges outside filter box.By filtering the string bag, make gas obtain filtration, purification, can remove the impurity such as stone flour.
The air port of letting out of control of dust filter plant 40 is communicated with the enterprising air port 131c of selection by winnowing classification case 131a by airduct; The air outlet of air blast 20 is communicated with the lower air inlet 131e of lower selection by winnowing classification case by airduct.Be provided with the adjusted plate 21 of regulating upper selection by winnowing classification case 131a air quantity and blast between enterprising air port 131c and charging aperture 131g; Be provided with the lower adjustable plate 22 of regulating lower selection by winnowing classification case 131b air quantity and blast under lower selection by winnowing classification case between air inlet 131e and classification material mouth 132a.
Wherein, check valve 132b, cyclonic filter equipment 30 and control of dust filter plant 40 adopt respectively existing conventional structure, and its concrete structure and operation principle thereof are prior art, as known technology, do not repeat them here.
In order to narrate conveniently, pending aggregate before the selection by winnowing classification is referred to as to combined aggregate, be referred to as the rough segmentation aggregate after a selection by winnowing classification, be referred to as to segment aggregate after the classification of secondary selection by winnowing.
Adopt the dry aggregate continuous multi-stage of a kind of concrete of the present invention selection by winnowing hierarchy system, its production method realizes by following steps:
1, select combined aggregate, combined aggregate can select natural sand, natural stone, Machine-made Sand, machine-processed stone, metal or nonmetallic ore can utilize waste material, metal or nonmetal smelting or ore dressing factory can utilize waste material, thermal power plant's slag, can utilize renewable material of building waste etc. to mix a kind of in the grain-size grade material, or any combination of close gravitational material wherein; Preferably select between the different-grain diameter aggregate the dry aggregate that does not have the bonding phenomenon, process prescreening or fragmentation, screening are processed, the selected pending aggregate with certain particle size range.
2, selected combined aggregate is entered and rubs in deslimer 12 by material-falling hopper, rub 12 pairs of aggregates of deslimer and rubbed, kibble desilt, be conducive to lower one force one wind and select classification to process.
3, the combined aggregate of rubbing is the heavy curtain shape and falls into the upper selection by winnowing classification case 131a in continous way multistage pneumatic separation classification case 13, drawing the cleaning of from control of dust filter plant 40, the letting out air port remaining air quantity that circulates continues to enter by airduct in upper selection by winnowing classification case 131a, under certain wind-force effect, first carry out the classification of first order selection by winnowing, remove in advance stone flour and the mud dirt carried secretly in combined aggregate, and will move to than lightweight aggregate pusher successively the upper collecting bin 131i of corresponding particle size range, form the rough segmentation aggregate, reach a certain amount of after, under the self gravitation effect of rough segmentation aggregate, check valve 132b opens automatically, the rough segmentation aggregate falls in lower selection by winnowing classification case 131b.
When 4, air blast 20 continues in downward selection by winnowing classification case 131b to blow, to the further selection by winnowing classification of rough segmentation aggregate that continues to fall from classification material mouth 132a, the aggregate of corresponding proportion and particle size range falls in corresponding rewinding storehouse 14.
5, the gas of carrying earth, dust, stone flour in upper selection by winnowing classification case 131a and lower selection by winnowing classification case 131b secretly is corresponding respectively enters cyclonic filter equipment 30 and control of dust filter plant 40 successively by upper air outlet 131d and lower air outlet 131f, the remaining air quantity of cleaning after filtering is introduced into the enterprising air port 131c of upper selection by winnowing classification case from letting out after discharge in air port of control of dust filter plant 40, realizes recycling.
6, through final each grain-size grade segmentation aggregate processed of lower selection by winnowing classification case 131b, the content of its earth and stone flour is up to standard, after falling into respectively corresponding rewinding storehouse 14, relying on the aggregate self gravitation to fall into respectively the belt conveyor (figure omits) of dividing into, to be sent to the high-order aggregate bin storage of concrete mixing plant standby.
Below continuous multi-stage selection by winnowing principle of the present invention and process are described further.Continue air-supply drawing the cleaning of from control of dust filter plant 40, the letting out air port remaining air quantity selection by winnowing classification case 131a that makes progress that circulates, air-supply in the downward selection by winnowing classification case 131b of air blast 20 simultaneously, according to parameters such as the combined aggregate particle size of rubbing, proportion and dust content degree, regulate by adjusted plate 21, lower adjustable plate 22 air output of introducing clean air circulation and air blast 20, to realize the adjusting to gas flow rate and flow, thereby realize comparatively desirable selection by winnowing grading effect.
The charging aperture 131g of combined aggregate after rubbing by long narrow passage is the heavy curtain shape and enters upper selection by winnowing classification case 131a, and be in the wind and select in classification case 131a through the classification of first selection by winnowing, thereby the corresponding multiply rough segmentation aggregate that forms, the particle diameter of per share rough segmentation aggregate is concentrated along the descending distribution of wind direction, and the rough segmentation aggregate of setting particle size range falls into respectively in corresponding upper collecting bin 131i.
When the rough segmentation aggregate of each particle size range is gathered in upper collecting bin 131i, the check valve 132b of upper collecting bin 131i bottom opens successively under the Action of Gravity Field of rough segmentation aggregate, multiply rough segmentation aggregate is respectively the heavy curtain shape and falls to entering in lower selection by winnowing classification case 131b, through the classification of second selection by winnowing, thereby the corresponding multiply segmentation aggregate that forms, the descending distribution of particle diameter of multiply segmentation aggregate concentrates correspondence to be divided into the one-level aggregate, the secondary aggregate, three grades of aggregates, the level Four aggregate, the Pyatyi aggregate, and correspondence falls into one-level rewinding storehouse 14a, secondary rewinding storehouse 14b, three grades of rewinding storehouse 14c, in level Four rewinding storehouse 14d and Pyatyi rewinding storehouse 14e.
The mist of carrying earth, dust, stone flour in upper selection by winnowing classification case 131a and lower selection by winnowing classification case 131b secretly is corresponding respectively enters cyclonic filter equipment 30 and control of dust filter plant 40 successively by upper air outlet 131d and lower air outlet 131f, after filtering, dust is discharged collection and treatment from whirlwind filter plant 30 and control of dust filter plant 40 bottoms, remaining air quantity is introduced the enterprising air port 131c of selection by winnowing classification case 131a from letting out air port by airduct, recycles.
Selection by winnowing classification principle of the present invention: be to have utilized Aerodynamics and newton's kinetic energy conservation theory, proportion is identical or close, the dried material that particle diameter is identical or close is subject under the effect of same gas motive force in same direction, kinetic energy is identical or close, the distance that is the stressed rear movement of dried material is identical or close, that is the dry aggregate of different-grain diameter is subject to identical thrust gas, mobile distance difference.When dried material is carried out to the selection by winnowing classification, let out the remaining air quantity of circulation in air port from control of dust filter plant 40, continue to enter upper selection by winnowing classification case 131a by airduct, according to material characteristic and classification requirement, by 21 pairs of air quantity of adjusted plate and blast, regulated, meanwhile combined aggregate is from material-falling hopper 11 free-fallings, being subject to after gas shock is in the wind to select in classification case 131a by quality size (namely particle size) resequences, assemble, passive rough classification becomes the rough segmentation aggregate of identical or close proportion different-grain diameter level scope, the rough segmentation aggregate is assembled and is dropped to corresponding classification material mouth 132a place from big to small, and be the heavy curtain shape by the long narrow strip passage of check valve 132b on corresponding classification material mouth 132a and enter lower selection by winnowing classification case 131b.
Equally, lower selection by winnowing classification case 131b sent into the gas of certain pressure and flow in advance by air blast 20, the flow of air-supply and flow velocity are according to material characteristic and classification requirement, by lower adjustable plate 22, regulated, meanwhile the check valve 132b long narrow strip passage of rough segmentation aggregate on different classification material mouth 132a is the free-falling of heavy curtain shape, be subject to by quality size (being particle size), in lower selection by winnowing classification case 131b, resequencing after gas shock, assemble, passive subfractionation becomes the segmentation aggregate of identical or close proportion different-grain diameter level scope, the descending one-level that is divided into of the particle diameter of the aggregate after segmentation, secondary, three grades etc., and correspondence falls into one-level rewinding storehouse 14a, secondary rewinding storehouse 14b, three grades of rewinding storehouse 14c, level Four rewinding storehouse 14d and Pyatyi rewinding storehouse 14e etc.The corresponding aggregate that the institute classification forms is: one-level divides in aggregate, secondary thickness to divide in aggregate, three grades of finer minute aggregates, level Four special fine minute aggregate of fine minute aggregate, Pyatyi etc. than thickness, has realized that the Accurate Classification of combined aggregate sorts.
The present invention is according to the manufacturing technique requirent of different industries, can be disposable by the granule materials of certain grain-size grade scope in the identical or close proportion mixed material of drying, under the thrust gas effect, realize assembling rapidly and classification, the material of same proportion will sort a plurality of kinds that are classified as the different-grain diameter scope by particle size, meet different requirements.Simultaneously, selection by winnowing stage division of the present invention is to complete in airtight upper selection by winnowing classification case 131a and lower selection by winnowing classification case 131b, man-made noise is polluted little, the final dust formed is from the bottom dust-exhausting port collection and treatment of cyclonic filter equipment 30 and control of dust filter plant 40, pure air after filtration is introduced selection by winnowing classification case by airduct and is recycled from letting out air port, realize energy-saving and emission-reduction, without the dust production operation, be conducive to environmental protection.
The data that adopt the present invention to carry out selection by winnowing classification processing are: the treating capacity of 10 tons/hour is divided into the aggregate of selecting 5 kinds of rank particle size range; And to the statistics that the vibratory sieve of same power motor configuration is implemented progressive operation be: the treating capacity of 8 tons/hour can only sub-elect the aggregate of 3 kinds of particle diameter level ranges, classification obvious processing effect of the present invention.If implement the present invention on a large scale, will greatly improve whole work efficiency and the product quality of concrete production industry.Moreover, the classification that promotes the dried material in other industrial circle is sorted to ability and there is equally realistic meaning.
The aggregate size distribution statistics table of comparisons after utilizing traditional selection by winnowing stage division and utilizing selection by winnowing classification of the present invention
Embodiment bis-
As shown in Fig. 4 a, Fig. 4 b and Fig. 5, the main distinction of the present embodiment and embodiment mono-is to replace air blasts 20 with air-introduced machine 50, and air-introduced machine 50 is arranged on to control of dust filter plant 40 let out the place, air port, the lower air inlet 131e of lower selection by winnowing classification case 131b opens wide.Air-introduced machine 50 in the present embodiment can arrange separately, or utilizes the wind of quoting of setting up in control of dust filter plant 40.
The suction opeing of air-introduced machine 50 connects the air port of letting out of control of dust filter plant 40 in production line, and the air outlet of air-introduced machine 50 connects enterprising air port 131c, by air-introduced machine 50, the filtered air that pump out from control of dust filter plant 40 is sent in selection by winnowing classification case 131a.By the swabbing action of air-introduced machine 50, make to form in lower selection by winnowing classification case 131b blast and the air quantity of same intensity.
The clean air that the present embodiment is discharged by air-introduced machine 50 suction control of dust filter plant 40 interior negative pressure filtrations, and send in selection by winnowing classification case 131a, for the classification of first selection by winnowing.Can form so a circulating aidr bells blast system, one can save energy the energy, reduce energy consumption, two can reduce discharge, reduce atmosphere pollution, finally reach the purpose of energy-conservation, low-carbon (LC), environmental protection.
And the present embodiment also can improve aggregate separated efficiency by upper selection by winnowing classification case 131a and lower selection by winnowing classification case 131b, make the particle diameter of the aggregates at different levels after the material particles classification more concentrated, and then improve the selection by winnowing classifying capability.
Embodiment tri-
The main distinction of the present embodiment and embodiment mono-is, the air outlet of air blast 20 is communicated with enterprising air port 131c and lower air inlet 131e by airduct respectively.
Embodiment tetra-
Air blast 20 and air-introduced machine 50 are set in the present embodiment simultaneously, and the air outlet of air blast 20 is communicated with enterprising air port 131c by airduct, and the air outlet of air-introduced machine 50 is communicated with lower air inlet 131e by airduct.
Above-described embodiment and accompanying drawing non-limiting product form of the present invention and style, suitable variation or modification that any person of an ordinary skill in the technical field does it, all should be considered as not breaking away from patent category of the present invention.

Claims (9)

1. the dry aggregate continuous multi-stage of concrete selection by winnowing classification case, it is characterized in that, comprise casing, the inside of casing becomes upper selection by winnowing classification case and lower selection by winnowing classification case by baffle for separating, one end of upper selection by winnowing classification case and lower selection by winnowing classification case correspondence respectively is provided with enterprising air port and lower air inlet, and the other end of upper selection by winnowing classification case and lower selection by winnowing classification case correspondence respectively is provided with air outlet and lower air outlet; Have charging aperture near enterprising air port on the top tank wall of upper selection by winnowing classification case, be laid with a plurality of discharging openings along wind direction on the under casing wall of lower selection by winnowing classification case, on dividing plate, corresponding a plurality of discharging openings are laid with a plurality of classification material mouths, and classification material mouth place is provided with the check valve of opening towards lower selection by winnowing classification case.
2. the dry aggregate continuous multi-stage of a kind of concrete as claimed in claim 1 selection by winnowing classification case, it is characterized in that, described dividing plate is towards a plurality of funnelform upper collecting bins of the surface of described upper selection by winnowing classification case formation protruding upward, and on each, the corresponding described classification material mouth of collecting bin difference arranges.
3. the dry aggregate continuous multi-stage of a concrete selection by winnowing grading plant, is characterized in that, comprises the material-falling hopper of accepting successively, can rub the deslimer of rubbing of aggregate, continous way multistage pneumatic separation classification case and rewinding storehouse;
Wherein, continous way multistage pneumatic separation classification case comprises casing, the inside of casing becomes upper selection by winnowing classification case and lower selection by winnowing classification case by baffle for separating, one end of upper selection by winnowing classification case and lower selection by winnowing classification case correspondence respectively is provided with enterprising air port and lower air inlet, and the other end of upper selection by winnowing classification case and lower selection by winnowing classification case correspondence respectively is provided with air outlet and lower air outlet; Have charging aperture near enterprising air port on the top tank wall of upper selection by winnowing classification case, the corresponding setting in charging aperture place rubbed deslimer, on the under casing wall of lower selection by winnowing classification case, along wind direction, is laid with a plurality of discharging openings, and a plurality of discharging openings place correspondence respectively arranges the rewinding storehouse; On dividing plate, corresponding a plurality of discharging openings are laid with a plurality of classification material mouths, and classification material mouth place is provided with the check valve of opening towards lower selection by winnowing classification case.
4. the dry aggregate continuous multi-stage of a kind of concrete as claimed in claim 3 selection by winnowing grading plant, it is characterized in that, the described deslimer of rubbing comprises casing, emery wheel and driving mechanism, the driving mechanism emery wheel that is in transmission connection, and emery wheel is arranged in casing in revolvable mode; The wheel face of emery wheel is provided with main mill layer, and on the internal box wall of casing, corresponding main mill layer is provided with secondary mill layer, a plurality of protruding mill section that the outer surface of main mill layer and secondary mill layer protrudes respectively that formation rubs that aggregate uses.
5. the dry aggregate continuous multi-stage of a kind of concrete as claimed in claim 4 selection by winnowing grading plant, it is characterized in that, the described deslimer of rubbing also comprises clearance adjustment mechanism, clearance adjustment mechanism comprises adjusting rod and spring, one end of adjusting rod is positioned at outside casing, stretches in described casing in the mode of pointing to emery wheel after the sheathed spring in this end and supports on described secondary mill layer.
6. the dry aggregate continuous multi-stage of a kind of concrete as claimed in claim 3 selection by winnowing grading plant, it is characterized in that, the described deslimer of rubbing comprises casing, emery wheel and driving mechanism, the driving mechanism emery wheel that is in transmission connection, emery wheel is two, and two emery wheels are arranged in casing in the mode of the aggregate that can rotate and knead; The wheel face of emery wheel is provided with main mill layer, and the outer surface of main mill layer protrudes and forms a plurality of protruding mill section that stone roller is rubbed to aggregate uses.
7. the dry aggregate continuous multi-stage of a kind of concrete as claimed in claim 4 selection by winnowing grading plant, is characterized in that, described emery wheel is the windward type discharging towards described enterprising air port rotation.
8. the dry aggregate continuous multi-stage of a concrete selection by winnowing hierarchy system, is characterized in that, comprises and accept successively continous way multistage pneumatic separation grading plant, cyclonic filter equipment and control of dust filter plant;
Wherein, continous way multistage pneumatic separation grading plant comprises the material-falling hopper of accepting successively, can rub the deslimer of rubbing of aggregate, continous way multistage pneumatic separation classification case and rewinding storehouse;
Continous way multistage pneumatic separation classification case comprises casing, the inside of casing becomes upper selection by winnowing classification case and lower selection by winnowing classification case by baffle for separating, one end of upper selection by winnowing classification case and lower selection by winnowing classification case correspondence respectively is provided with enterprising air port and lower air inlet, and the other end of upper selection by winnowing classification case and lower selection by winnowing classification case correspondence respectively is provided with air outlet and lower air outlet; Have charging aperture near enterprising air port on the top tank wall of upper selection by winnowing classification case, the corresponding setting in charging aperture place rubbed deslimer, on the under casing wall of lower selection by winnowing classification case, along wind direction, is laid with a plurality of discharging openings, and a plurality of discharging openings place correspondence respectively arranges the rewinding storehouse; On dividing plate, corresponding a plurality of discharging openings are laid with a plurality of classification material mouths, and classification material mouth place is provided with the check valve of opening towards lower selection by winnowing classification case;
Enterprising air port and lower air inlet are communicated with air blast by airduct respectively; Perhaps enterprising air port is communicated with air-introduced machine by airduct; Perhaps enterprising air port is communicated with air-introduced machine by airduct, and lower air inlet is communicated with air blast by airduct; Perhaps enterprising air port is communicated with air blast by airduct, and lower air inlet is communicated with air-introduced machine by airduct.
9. the dry aggregate continuous multi-stage of a kind of concrete as claimed in claim 8 selection by winnowing hierarchy system, is characterized in that, is provided with the adjusted plate of regulating described upper selection by winnowing classification case air quantity and blast between described enterprising air port and described charging aperture; Be provided with the lower adjustable plate of regulating lower selection by winnowing classification case air quantity and blast between described lower air inlet and described classification material mouth.
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CN107716089A (en) * 2017-10-11 2018-02-23 镇江乐科信息科技有限公司 A kind of quick separating from soil goes out the method and device of metal dust
CN108514801A (en) * 2018-06-25 2018-09-11 连炳华 A kind of dust-extraction unit of copper rice machine
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CN109941756A (en) * 2019-03-01 2019-06-28 成都瑞柯林工程技术有限公司 Particulate matter method for sieving and powder fluidization device
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CN115283254A (en) * 2022-07-29 2022-11-04 中触媒新材料股份有限公司 System and method for quickly screening and activating oxygen production adsorbent particle airflow
CN117505256A (en) * 2024-01-06 2024-02-06 孝义市鼎润新材料科技有限公司 A selection by winnowing screening machine for after haydite sand raw materials is broken

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CN105013704B (en) * 2015-06-30 2017-11-21 中国矿业大学 A kind of air-spray mineral grain method for separating and device
CN105013704A (en) * 2015-06-30 2015-11-04 中国矿业大学 Air jet stream mineral particle separation method and device
CN107716089A (en) * 2017-10-11 2018-02-23 镇江乐科信息科技有限公司 A kind of quick separating from soil goes out the method and device of metal dust
CN108751752A (en) * 2018-06-13 2018-11-06 贵州理工学院 A kind of preparation method and pneumatic separation device for steel-making slag powder in cement
CN108514801A (en) * 2018-06-25 2018-09-11 连炳华 A kind of dust-extraction unit of copper rice machine
CN109941756B (en) * 2019-03-01 2024-04-19 成都瑞柯林工程技术有限公司 Particle screening method and powder fluidization device
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CN113857040A (en) * 2021-08-24 2021-12-31 浙矿重工股份有限公司 Light material selecting and removing device
CN114345703A (en) * 2022-01-06 2022-04-15 天津水泥工业设计研究院有限公司 Building garbage screening, light material sorting and dust collecting integrated equipment and method
CN115283254A (en) * 2022-07-29 2022-11-04 中触媒新材料股份有限公司 System and method for quickly screening and activating oxygen production adsorbent particle airflow
CN115283254B (en) * 2022-07-29 2023-08-25 中触媒新材料股份有限公司 Rapid screening and activating system and method for air flow of oxygen-making adsorbent particles
CN117505256A (en) * 2024-01-06 2024-02-06 孝义市鼎润新材料科技有限公司 A selection by winnowing screening machine for after haydite sand raw materials is broken
CN117505256B (en) * 2024-01-06 2024-03-22 孝义市鼎润新材料科技有限公司 A selection by winnowing screening machine for after haydite sand raw materials is broken

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