CN104874540A - Push-pull hanging and folding screen - Google Patents
Push-pull hanging and folding screen Download PDFInfo
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- CN104874540A CN104874540A CN201510221034.8A CN201510221034A CN104874540A CN 104874540 A CN104874540 A CN 104874540A CN 201510221034 A CN201510221034 A CN 201510221034A CN 104874540 A CN104874540 A CN 104874540A
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- 210000002421 cell wall Anatomy 0.000 claims description 10
- 238000012216 screening Methods 0.000 abstract description 50
- 230000018044 dehydration Effects 0.000 description 23
- 238000006297 dehydration reaction Methods 0.000 description 23
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- 238000013461 design Methods 0.000 description 14
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- 241000446313 Lamella Species 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 238000005188 flotation Methods 0.000 description 6
- 238000007873 sieving Methods 0.000 description 6
- 239000012141 concentrate Substances 0.000 description 5
- 238000010410 dusting Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention discloses a push-pull hanging and folding screen which is used for dewatering or wet-type screening of ore pulp. The push-pull hanging and folding screen comprises a rack, a plurality of strings of screening units, a push-pull mechanism, a transmission system, a bottom chute and intra-string bottom supporting grooves, the screening units hung on the rack are hollow cavities which are communicated, a movable screening cavity set is arranged vertically in a sectionalized manner, screening nets are arranged on two side faces of screening cavities of the movable screening cavity set, the screening cavities of the movable screening cavity set when being pushed and pulled can be folded in an angle-variable manner, and the transmission system is used to drive each push-pull rod of the push-pull mechanism to be in reciprocating push-pull action to drag the screening cavities positioned at equal-altitude positions of all screening units of a same push-pull rod to be combined together for shaking so as to enable screening faces of the screening cavities to alternate downwards and upwards. Through spatial architecture designing, ore pulp is divided into multiple branches which are parallelly connected to be spread to form ore pulp faces respectively, ore pulp on the screen is continuously connected serially to increase screen permeating times, and an ore pulp layer is turned to improve screen permeating efficiency.
Description
Technical field
The present invention relates to a kind of screening plant, particularly relate to a kind of plug-type extension folding sieve, for pulp dewatering or wet screening, belong to mine mechanism technical field.
Background technology
In existing material sieving technology, for the dusting cover of pulp dewatering or wet screening still based on vibrating fine screen; If in addition for carrying out desliming or de-mediated to ore pulp, its technological requirement is identical with wet screening, is and removes fine grained from ore pulp.
When vibrating fine screen is used for pulp dewatering, if feed too rare ore pulp, then there will be compass screen surface and to metal run out phenomenon, most of moisture content can not get sieve, therefore needs first just can feed after slurry concentrating; Even if feed the ore pulp that concentration is suitable after concentrated, also due to the material deposition of the local stoppages of screen cloth and compass screen surface, and compass screen surface channeling can be there is, cause ore pulp to plow with channel and moisture content be difficult to lower infiltration and sieve.
Just because of vibrating fine screen is used for dehydration have shortcoming as above, therefore adopt the concentrated dewatering type adding dusting cover only to do the process before heap for minority iron tailings, the dehydration of most occasion still needs to adopt the concentrated mode adding filtration.And for concentrated concentrator, down to discharge after being formed based on underflow and overflow is that the mode of clear water designs substantially, therefore the Civil Cost of concentrator is higher, build up rear irremovable, even if the cyclone changing compact into concentrates, rare not still need of cyclone overflow concentrates into concentrator, and needs higher pressure to ore deposit mouth due to cyclone, makes energy consumption higher.
Compass screen surface as above is metalled run out and channeling, the present inventor think this is because be difficult to control the upper ore pulp of sieve flowing, easily cause " ore pulp short circuit "; This is like flotation circuit, in order to avoid " ore pulp short circuit ", can not select the flotation device of separate unit large gauge, but selects the flotation device of some slightly small dimensions to connect use; And for vibrating fine screen, if be just together in series as flotation circuit by existing screen(ing) machine, not only the flowing of the upper ore pulp of sieve needs repeatedly to allocate by pump, thereby increase energy consumption, and equipment number of units place that is many, that take will certainly be very large.
Vibrating fine screen is used for desliming, de-mediated or wet screening time, be use in the mode of thinning ore pulp layer and the upper water spray of sieve, because ore pulp layer is thin, the movement travel of the upper ore pulp of sieve can be reduced, but the one direction by screen cloth is arranged to be limit, its floor space is comparatively large and work area is less; Even if added effect of vibration allows suitably to thicken ore pulp layer, also can be not easy to make corresponding lengthening because of the movement travel of the upper ore pulp of sieve, and cause screening efficiency to decline, therefore be difficult to the disposal ability improving unit; If it is wide also inadvisable to increase the long sieve of sieve to individual layer vibrating fine screen, this is because the stress amplification of holding the component that shakes is larger, material usage increases, power consumption also increases.
In order to increase the treating capacity of screen(ing) machine and improve dehydration or the screening efficiency of screen(ing) machine, screen(ing) machine is formed Spatial infrastructure to realize by existing material sieving technology, has two kinds of set-up modes for this reason, and one arranges by stacked system, to form Multifeeding; Another kind spatially moves to arrange, to change the direction of motion of the upper ore pulp of sieve to extend its movement travel, just like taper compass screen surface dusting cover, spirality compass screen surface dusting cover, spiral tube screen, spiral cylinder water sieve etc.; The former achieves being connected in parallel to ore pulp, and the latter achieves being connected in series of the upper ore pulp of sieve; Wherein limitting by structure, can be used in parallel the former and be difficult to connect as the latter again, the dusting cover of the latter's only part helix class can do lamination again to form two-way or three tunnels feed in parallel; In view of this, existing material sieving technology is difficult to have the two advantage concurrently.
Summary of the invention
Conception of the present invention is: realize should being convenient to will be divided into multiply in parallel to ore pulp to spread out mineral slurry level respectively by the Spatial infrastructure design of uniqueness, and being convenient to again continues to connect to the upper ore pulp of sieve sieves number of times to increase.
For above-mentioned conception, the present invention is realized by following technical proposal: a kind of plug-type extension folding sieve, it is characterized in that comprising frame, sieve unit, push-pull mechanism, transmission system that rack-mounted some string structures are identical, be used for collecting chute 51 at the bottom of the machine of the upper product of sieve, be used for collecting backing groove 52 between the string of undersized product.
Described sieve unit comprises to chamber, ore deposit 11, static chamber 12, dynamic sieve chamber group, accepts chamber 16; Each cavity of described sieve unit is the hollow connectivity structure surrounded by surrounding side, and dynamic sieve Zu Geikuang chamber, chamber 11, dynamic sieve chamber group are set by vertical merogenesis, accept chamber 16 and be communicated with successively from top to bottom, dynamic sieve chamber group and dynamicly sieve between the group of chamber, dynamic sieve chamber group and between chamber, ore deposit 11, move to sieve between chamber group and undertaking chamber 16 static chamber 12 be all set, static chamber 12 is fixed in frame; Dynamic sieve chamber group comprises vibrating screen chamber and reciprocating gird chamber 14, and wherein vibrating screen chamber comprises initiatively vibrating screen chamber 13 and driven vibrating screen chamber 15, and driven vibrating screen chamber 15, reciprocating gird chamber 14, initiatively vibrating screen chamber 13 are flexibly connected successively; The left and right side in each sieve chamber is provided with screen cloth 19, and the front and back sides in each sieve chamber is rugosity, sieves the change of chamber thickness when can adapt to push-and-pull.
Described push-pull mechanism comprises subsides chamber bar 31, fork 32, sliding frame and pull bar 35, paste the junction that chamber bar 31 is positioned at initiatively vibrating screen chamber 13 and reciprocating gird chamber 14, fork 32 is symmetrical arranged by two with active vibrating screen chamber 13 before and after one, one end of fork 32 is fixed in frame as center of rotation, and the other end is connected with subsides chamber bar 31 as the end points of circular motion; Fork 32 is connected with sliding frame; In sieve unit, the fork of isometry position is connected with same sliding frame, sliding frame is connected with pull bar 35.
Described transmission system is used for ordering about pull bar 35 and does reciprocating sliding action.
Chute 51 at the bottom of described machine is positioned to be accepted below chamber 14; Between described string, backing groove 52 is through static chamber 12, and its bottom land to be positioned at below the group of dynamic sieve chamber and to be fixed in frame.
Described static chamber 12 is all connected by revolute pair 17 with the left and right side in active vibrating screen chamber 13 with reciprocating gird chamber 14, reciprocating gird chamber 14 with driven vibrating screen chamber 15, driven vibrating screen chamber 15.
The length and the angle that are preferably each sieve chamber in the group of described often joint dynamic sieve chamber meet following formula:
In formula, A, B, C are respectively the length in initiatively vibrating screen chamber 13, driven vibrating screen chamber 15, reciprocating gird chamber 14 in this dynamic sieve chamber group, and in formula, α, β are respectively the screen angle of reciprocating gird chamber 14 in corresponding active vibrating screen chamber 13, driven vibrating screen chamber 15 time vertical when this dynamic sieve chamber group.
The quantity of described sieve unit is 4 ~ 20 strings, and the quantity of described dynamic sieve chamber group is 2 ~ 6 joints; In reciprocating gird chamber 14 in time vertical, initiatively the compass screen surface inclination angle in vibrating screen chamber 13 and driven vibrating screen chamber 15 is 25 ~ 40 °, to the dynamic sieve chamber group of some merogenesis is used for dehydration, the screen angle of vibrating screen chamber when the reciprocating gird chamber of this dynamic sieve chamber group is vertical is by sequentially changing from small to big up and down.
Described sliding frame is overlapped by longitudinal traction bar 33 and cross bar 34 and forms, longitudinal traction bar 33 is provided with jack 37, the suit mode of sliding frame and fork 32 first stretches in the jack 37 of sliding frame by fork 32, again the swinging end of fork 32 is connected with subsides chamber bar 31, in sieve unit, the fork 32 of isometry position stretches in the jack 37 of same sliding frame, and pull bar 35 is positioned on the cross bar 34 of end; Described longitudinal traction bar 33 is also provided with sliding component 36, and sliding component 36 supports or is suspended on two, the front and back longitudinal rail beam 22 of described frame.
Described transmission system comprises Hydraulic Power Transmission System and/or slider-crank mechanism:
Described Hydraulic Power Transmission System is used for doing and continues and/or push-and-pull in turn, Hydraulic Power Transmission System is made up of more than one hydraulic gear, hydraulic gear and pull bar 35 are by arranging one to one, hydraulic gear comprises hydraulic cylinder 42, the piston rod of hydraulic cylinder 42 is connected with pull bar 35, multiple hydraulic gear combines a shared hydraulic pump 41 by oil circuit, there is provided power to the flowing of fluid by hydraulic pump 41, the trend of fluid is changed with control valve 43, move back and forth to order about piston rod, thus traction pull bar 35 moves back and forth, as shown in Figure 8.
Described slider-crank mechanism is used for doing lasting push-and-pull, slider-crank mechanism and pull bar 35 are by arranging one to one, its slide block 44 is connected with pull bar 35, its crank 45 is arranged on reducing motor 46, order about crank 45 with reducing motor 46 to rotate, the rotary motion of crank 45 is converted to moving back and forth pull bar 35, and as shown in Figure 9, dotted line represents the movement locus of crank end.
Conveniently regulate the slurry-outlet quantity of each string sieve unit, also comprise pressure chamber bar 18, bar 18 pairing of pressure chamber embeds at the lateral surface accepting chamber 16.
To the dynamic sieve chamber group of some merogenesis is used for wet screening, also comprise water supply connector 61, water supply connector 61 is positioned at the side in static chamber 12.
Wet screening is carried out to the dynamic sieve chamber group of some merogenesis be used for being immersed in the water, also should increase backing groove between string, between described dynamic sieve chamber group and string, backing groove 52 is by vertically arranging one to one, and between the string of increase, backing groove 52 is through static chamber 12, and its bottom land is positioned at below the group of corresponding dynamic sieve chamber.Between string, backing groove 52 is through after static chamber 12, also should be bonded on the lateral wall in adjacent stationary chamber 12 by whole silvers of bottom land respectively.
Spilling outside undersized product to stop, also comprising Spatterproof curtains 53, between described Spatterproof curtains 53 and string, backing groove 52 is by arranging one to one, and Spatterproof curtains 53 is in collapsible shape, and its upper end hangs in frame, and lower end is buckled in inside the cell wall of backing groove 52 between corresponding string.
The leading flank of described sieve unit or trailing flank are made up of material that is flexible, wear-resistant, stretch-proof, and preferably, its material is terylene, polypropylene fibre, polyamide fibre or polyvinyl; The connected mode of its leading flank or trailing flank and left surface and right flank is on screen frame, arrange that a trestle column is that the pin hole of 5 ~ 10mm carries out stitching and is connected.
Between described undertaking chamber, string, backing groove is made up of flexible, anti abrasive material; Preferably, its material is fiber reinforced rubber based composites.
Described Spatterproof curtains is made up of material that is light and handy, collapsible, that do not absorb water; Preferably, its material is plastic skin, fiber cloth or rubber peel.
Operation principle and the process of the present invention's plug-type extension folding sieve are as follows:
To each string sieve unit in frame, the active vibrating screen chamber of mobile a certain dynamic sieve chamber group, the reciprocating gird chamber in this dynamic sieve chamber group can be made to be vertically, initiatively vibrating screen chamber and driven vibrating screen chamber are skewed, also such form can be presented during the opposite side of migration symmetry, demarcate initiatively vibrating screen chamber screen angle α, driven vibrating screen chamber screen angle β thus, and define these two kinds symmetrical forms for demarcating state.Each wiggly process in sieve chamber of drawing a certain dynamic sieve chamber group with push-and-pull is, when inciting somebody to action active vibrating screen chamber toward opposite side push-and-pull, initiatively the screen angle in vibrating screen chamber equaled α value before this, and reciprocating gird chamber is not also in vertical form, when the screen angle in driven vibrating screen chamber is also not equal to β value, also need sliding frame first to cross push-and-pull, again rollback, to impel each sieve chamber all in demarcation state.If order about initiatively vibrating screen chamber to do reciprocating sliding action, each sieve chamber of this dynamic sieve chamber group can be made to vacillate now to the left, now to the right, and make its compass screen surface replace rotation down and upward.
Fine with the form of ore pulp all assign to from external pulp distributer each string sieve unit in chamber, ore deposit, and the ore pulp after each stock stream again along flowing into the unrolled transverse in chamber, ore deposit.When dynamic sieve chamber group just gets back to demarcation state time-out from oscillating motion, ore pulp by deadweight, be tilted to the lower compass screen surface gradient and Thin Film Flows and sieve chamber through each successively and move down, the particle that part is less than screen size is with rarer pulp density gradually through sieve aperture, and the saturating sieve in this stage is based on vibrating screen chamber.Along with the prolongation of this dynamic sieve chamber group dead time, material down compass screen surface deposition gradually, saturating sieve amount reduces.When dynamic sieve chamber group is waved, reciprocating gird chamber is by vertically becoming inclination, reciprocating gird chamber and vibrating screen chamber all can be sieved thoroughly, and the cavity thickness in each sieve chamber can change with rocked position difference, ore pulp can attract from sieve chamber, ortho position by thick changing from small to big in chamber, chamber is thick can be squeezed ore pulp toward sieve chamber, ortho position from large to small and press to screen cloth, just makes ore pulp be stirred thus and is thoroughly sieved, while moved down.By dynamic sieve chamber group after an one-stroke is waved, the lower compass screen surface originally depositing material is transformed into compass screen surface, and the upper compass screen surface originally not depositing material is transformed into lower compass screen surface, through this compass screen surface rotation, make thin liquid pulp towards lower compass screen surface, even if this dynamic sieve chamber group temporarily stops waving, still can maintain a period of time continuation sieve thoroughly, the time of just having won thus provides push-and-pull to the dynamic chamber group of sieving of each joint in turn; So, just can draft out a kind of push-pull fashion is interval or push-and-pull in turn; Further, another kind of push-pull fashion can also be drafted out for continuing push-and-pull.During with lasting push-pull fashion work, just enhancing moves sheds frequency ore pulp being pressed to screen cloth.
Different by the application scenario of screen(ing) machine, assemble the screen cloth of different pore size, its screening process is also variant: if 1. for dehydration, and ore pulp is in the process moved down via each sieve chamber, along with thin liquid pulp flows away through sieve aperture, be trapped in sieve chamber in ore pulp by thickening gradually; If 2. for wet screening, ore pulp first flows through joint dynamic sieve chamber group, the particle that part is less than screen size is sifted out, now still have the remaining particulate inclusion being less than screen size in the particle being greater than screen size, move in the group of sieve chamber by the method added water at next joint for this reason, maintain the peptizaiton to material, to keep normally carrying out of screening; Carry out if 3. wet screening is immersed in the water, can under the condition that need not increase rate of water make-up, sieve with rarer pulp density, control the velocity of discharge of undersized product with backing groove between string, densely deposit rare way to arrange and sieve under making material be in sufficient suspended dispersion.
During screen(ing) machine work, note the spacing adjusting pairing pressure chamber bar, the ore pulp amount flowed out to make corresponding undertaking chamber is balanced with the ore pulp amount of feeding to chamber, ore deposit.The sieve flowed out under the undertaking chamber of each sieve unit, product comes together in chute at the bottom of machine, is then introduced in external conveying device.The undersized product thoroughly sieved from each string sieve unit is also spilling outward by push-and-pull while dirty, and owing to there being the stop of Spatterproof curtains, undersized product is come together between string in backing groove, is then flowed out by external pipeline.
Compared with existing material sieving technology, the plug-type beneficial effect hanging folding sieve of the present invention is:
(1) both can will be divided into multiple flow in parallel to ore pulp to each string sieve unit, the ore pulp of per share shunting can be spread out again, the space utilization degree of equipment is high; Therefore at thinning ore pulp layer, under ensureing the prerequisite of screening effect, the maximization of equipment can be realized.
(2) sieve unit is in series by each joint dynamic sieve chamber group, and each joint dynamic sieve chamber group is in series by each sieve chamber again, extends the movement travel of the upper ore pulp of sieve thus, adds and sieve number of times, if for dehydration, just allow wider feedstock concentrations scope; If during for wet screening, just improve screening precision.
(3) surrounding in sieve chamber closed, thin liquid pulp just only has just can go out to sieve chamber through thoroughly sieving; With push-and-pull change sieve chamber compass screen surface towards, serve the effect of upset ore pulp layer, so, form sedimentary deposit stop once lower compass screen surface thoroughly to sieve, just in time opposite side compass screen surface wheel is changed to lower compass screen surface, make thin liquid pulp towards lower compass screen surface, sieve aperture obtains dredging, treats that sieve ore pulp layer obtains loose thus, thus can improve the efficiency of dehydration or screening.
(4) by thinning for the ore pulp layer on compass screen surface, also reduce the wearing and tearing to screen cloth, and the series connection of sieve chamber is also reduced the area of individual screen cloth, when screen cloth local damage need be changed, little by the not damaged area ratio changing screen cloth, thus alleviate the maintenance workload changing screen cloth, reduce the consumption of screen cloth.
(5) existing multiple pull bars to combining hydraulic pump continues and/or push-and-pull in turn, has again and carrys out lasting push-and-pull to single pull bar slider-crank mechanism; The former has saved equipment manufacturing cost, has saved energy consumption, and the latter sheds ore pulp with the motion of component, enhances dehydration.
(6) to allow screen cloth water outlet to run muddy method to dewater, both can obtain ore pulp under rarer sieve by assembling the screen cloth of different pore size, can ensure that again water-outlet area is large, concentrated speed is fast; If for essence mine dehydration, with common concentrator compared with sedimentation basin coupling scheme, by plug-type extension folding sieve and sedimentation basin coupling, can investment reduction; If for the dehydration before tailing dry-heaping or mine tailing filling, not only can replace concentrator or vertical sand warehouse, the plug-type component removal hanging folding sieve can also be shifted, ressembles, to facilitate goaf mine tailing being filled to different location, so both save floor space, turn avoid overlapping investment.
(7) if dewater for replacing concentrator, when can move down according to ore pulp, concentration is by rare feature thickened, relative set vibrating screen chamber is in demarcating the screen angle of state by gradual urgency, pulp joint under the sieve in each vibrating screen chamber is gathered and sieves upper ore pulp and move down joint and gather and match, thus the dewatering efficiency in each vibrating screen chamber is all optimized.
(8) for wet screening, both can sieve moisturizing in chamber in the past and carry out pulping again, the ore pulp in sieve unit is made all to keep suitable concentration from top to bottom, have again supplementary means to be immersed in the water of backing groove between string in sieve chamber to be used for making the abundant suspended dispersed of material, not only be conducive to improving screening efficiency, also can alleviate the blocking to screen cloth.
(9) if technique has needs, be convenient to each string sieve unit to be arranged to some joints dynamic sieve chamber group above and be used as wet screening, below some joints dynamic sieve chamber group be used as to continue dehydration to the upper product of sieve, realize a machine double-purpose.
Accompanying drawing explanation
Fig. 1 is the plug-type structural representation hanging folding sieve described in embodiment 1;
Fig. 2 is the plug-type plan structure schematic diagram hanging folding sieve described in embodiment 1;
Fig. 3 is dynamic sieve chamber of the present invention group in length when demarcating state and angle schematic diagram;
The structural representation that Fig. 4 launches for four kinds of pattern revolute pairs described in embodiment 1;
Fig. 5 is the stroke schematic diagram that each sieve chamber of dynamic sieve chamber of the present invention group is waved;
Fig. 6 is the perspective view being used as the sliding frame of supporting of the present invention;
Fig. 7 is the perspective view being used as the sliding frame of suspention of the present invention;
Fig. 8 is the structural representation of Hydraulic Power Transmission System of the present invention;
The structural representation of slider-crank mechanism described in Fig. 9;
Figure 10 is that between string of the present invention, backing groove passes the schematic perspective view before static chamber;
Figure 11 is the partial schematic diagram of Spatterproof curtains of the present invention;
Figure 12 is the plug-type structural representation hanging folding sieve described in embodiment 2;
Figure 13 is the pipeline rout schematic diagram of the pipeline that adds water of the present invention;
Figure 14 is the plug-type structural representation hanging folding sieve described in embodiment 3.
In figure: 11-is to chamber, ore deposit; The static chamber of 12-; 13-is vibrating screen chamber initiatively; 14-reciprocating gird chamber; The driven vibrating screen chamber of 15-; 16-accepts chamber; 17-revolute pair; 18-presses chamber bar; 19-screen cloth; 171-hinge; 172-rotatable lamella; 173-hinge; 174-graphite powder; 175-jacket; 21-column; 22-longitudinal rail beam; 23-crossbeam; 24 ┈ pegs; 31-pastes chamber bar, 32-fork; 33-longitudinal traction bar; 34-cross bar; 35-pull bar; 36-sliding component; 37-jack; 41-hydraulic pump; 42-hydraulic cylinder; 43-control valve; 44-slide block; 45-crank; 46-reducing motor; Chute at the bottom of 51-machine; Backing groove between 52-string; 53-Spatterproof curtains; 54-strip slot; 55-folds the curtain collar, 56-button; 57-buttonhole; 61-water supply connector; 62-athwartship leg; 63-water inlet pipe.
Detailed description of the invention
Also content of the present invention is illustrated further by reference to the accompanying drawings below by embodiment, and respectively according to use occasion and technical requirement, draft the main structure parameters of equipment, but these embodiments and use occasion are exemplary, only for explaining the present invention, and limitation of the present invention can not be interpreted as.
embodiment one
Described in the present embodiment, plug-type extension folding sieve is used for pulp dewatering, comprise the identical sieve unit of some string structures, frame, push-pull mechanism, transmission mechanism, backing groove 52, Spatterproof curtains 53 between chute 51 at the bottom of machine, string, as shown in Figure 1 and Figure 2, the flow direction of what in figure, arrow represented is ore pulp on compass screen surface.
Described sieve unit comprises to chamber, ore deposit 11, static chamber 12, dynamic sieve chamber group, accepts chamber 16; Each cavity of described sieve unit is the hollow connectivity structure surrounded by surrounding side, and by vertical merogenesis, dynamic sieve chamber group is set, dynamic sieve chamber group and dynamicly sieve between the group of chamber, dynamic sieve chamber group and between chamber, ore deposit 11, move to sieve between chamber group and undertaking chamber 16 static chamber 12 be all set; Dynamic sieve chamber group comprises vibrating screen chamber and reciprocating gird chamber 14, and wherein vibrating screen chamber comprises initiatively vibrating screen chamber 13 and driven vibrating screen chamber 15, and driven vibrating screen chamber 15, reciprocating gird chamber 14, initiatively vibrating screen chamber 13 are flexibly connected successively; The left and right side in each sieve chamber is provided with screen cloth 19, and the front and back sides in each sieve chamber is rugosity, sieves the change of chamber thickness when can adapt to push-and-pull.
Described frame is overlapped by column 21, longitudinal rail beam 22 and crossbeam 23 and forms, and have peg 24 in the arranged outside in described static chamber 12, the rear and front end of peg 24 is fixed in frame.
According to use occasion and technical requirement, for each sieves the screen cloth that chamber configures suitable aperture, and draft the screen angle that the quantity of sieve unit, the quantity moving sieve chamber group and active vibrating screen chamber, driven vibrating screen chamber are demarcation state; Length when referring to the dynamic sieve chamber group shown in Fig. 3 in demarcation state and angle schematic diagram.
Described static chamber 12 is all connected by revolute pair 17 with the left and right side in active vibrating screen chamber 13 with reciprocating gird chamber 14, reciprocating gird chamber 14 with driven vibrating screen chamber 15, driven vibrating screen chamber 15.
Consult and (4a), (4b), (4c), kind of the pattern revolute pair of four shown in (4d) in comparison diagram 4, select revolute pair, represent the local profile in plan after opening jacket under figure Wave line, circular hole represents the boring in central blade; Wherein for two revolute pairs up and down sharing same static chamber 12 between the group of two joints dynamic sieve chamber, then the hinge 171 being in static chamber 12 shared and become duplex revolute pair, revolute pair and duplex revolute pair have following four kinds of patterns:
I type revolute pair: the rotation realizing single shaft with rotatable lamella 172, is attached to the upper side and lower side of rotatable lamella 172 by two pieces of hinges 171 separately, as shown in figure (4a);
II type duplex revolute pair: the rotation realizing diaxon with rotatable lamella 172, is attached to the upside of rotatable lamella 172, middle side and downside by three pieces of hinges 171 separately, as shown in figure (4b);
III type revolute pair: the hinge preventing ore pulp countershaft from wearing and tearing being a kind of improvement, it is characterized in that: two pieces of hinges 171 are rotated by hinge 173, graphite powder 174 is filled with at the rotating shaft position of hinge 173, two sides inside and outside jacket 175 being bonded in hinge 171, to carry out sealing to the rotating shaft of hinge 173 and graphite powder 174 coated, as shown in figure (4c);
IV type duplex revolute pair: the duplex hinge preventing ore pulp countershaft from wearing and tearing being a kind of improvement, it is characterized in that: upper hinge and middle hinge, middle hinge and lower hinge are rotated respectively by hinge 173, graphite powder 174 is filled with at the rotating shaft position of two hinges 173, two sides inside and outside jacket 175 being bonded in hinge 171, to carry out sealing to the rotating shaft of hinge 173 and graphite powder 174 coated, as shown in figure (4d).
The rotatable lamella of described I type revolute pair or II type duplex revolute pair is made up of flexible, broken resistance, material that is wear-resistant, stretch-proof, and preferably, its material is fiber reinforced rubber based composites, terylene, polypropylene fibre, polyamide fibre or polyvinyl; The jacket of described III type revolute pair or IV type duplex revolute pair is made up of flexible, broken resistance, wear-resistant, material impervious to water, and preferably, its material is fiber reinforced rubber based composites.
Described push-pull mechanism comprises subsides chamber bar 31, fork 32, sliding frame and pull bar 35, paste the junction that chamber bar 31 is positioned at initiatively vibrating screen chamber 13 and reciprocating gird chamber 14, fork 32 is symmetrical arranged by two with active vibrating screen chamber 13 before and after one, one end of fork 32 is fixed on the peg 24 of frame as center of rotation, and the other end is connected with subsides chamber bar 31 as the end points of circular motion; Fork 32 is connected with sliding frame; In sieve unit, the fork of isometry position is connected with same sliding frame, sliding frame is connected with pull bar 35.
The stroke schematic diagram that each sieve chamber referring to the dynamic sieve chamber group shown in Fig. 5 is waved.(5a) state is demarcated for this dynamic sieve chamber group is in left end; (5b) be that initiatively vibrating screen chamber 13 is in time vertical, and other sieves the state in chamber by initiatively vibrating screen chamber 13 is toward right-hand member push-and-pull; (5c) for the screen angle in active vibrating screen chamber 13 equals α value, and reciprocating gird chamber 14 is also in vertical form, and the screen angle in driven vibrating screen chamber is also not equal to β value; (5d) for sliding frame is crossed push-and-pull to extreme right point; (5e) state is demarcated for this dynamic sieve chamber group is in right-hand member.From (5a) to the stroke of (5b), initiatively the chamber in vibrating screen chamber 13 is thick changes from small to big, and the chamber in reciprocating gird chamber 14 is from large to small thick; From (5c) to the stroke of (5d), initiatively will cross push-and-pull in vibrating screen chamber 13, such that the chamber in initiatively vibrating screen chamber 13 is thick becomes minimum; From (5d) to the stroke of (5e), will active vibrating screen chamber 13 rollback.
Refer to the schematic perspective view of sliding frame shown in Fig. 6 and Fig. 7, illustrate and be used as supporting or be used as suspention two kinds of modes, described sliding frame is overlapped by longitudinal traction bar 33 and cross bar 34 and forms, longitudinal traction bar 33 is provided with jack 37, the suit mode of sliding frame and fork 32 first stretches in the jack 37 of sliding frame by fork 32, again the swinging end of fork 32 is connected with subsides chamber bar 31, stretch in the jack 37 of same sliding frame with this by the fork 32 of isometry position in whole sieve unit, pull bar 35 is positioned on the cross bar 34 of end; Described longitudinal traction bar 33 is also provided with sliding component 36, and sliding component 36 supports or is suspended on two, the front and back longitudinal rail beam 22 of described frame; For this reason, according to the position relationship of sliding frame from longitudinal rail beam 22, select a kind of from the mode supported or suspend in midair;
Described transmission system is used for ordering about pull bar 35 and does reciprocating sliding action, described transmission system comprises Hydraulic Power Transmission System and/or slider-crank mechanism, according to use occasion and technical requirement, and to consult and kind of the transmission scheme of two shown in comparison diagram 8 and Fig. 9 is selected, that is:
1. do by Hydraulic Power Transmission System and continue and/or push-and-pull in turn, Hydraulic Power Transmission System is made up of more than one hydraulic gear, hydraulic gear and pull bar 35 are by arranging one to one, hydraulic gear comprises hydraulic cylinder 42, the piston rod of hydraulic cylinder 42 is connected with pull bar 35, multiple hydraulic gear combines a shared hydraulic pump 41 by oil circuit, there is provided power to the flowing of fluid by hydraulic pump 41, the trend of fluid is changed with control valve 43, move back and forth to order about piston rod, thus traction pull bar 35 moves back and forth.
2. do lasting push-and-pull with slider-crank mechanism, slider-crank mechanism and pull bar 35 are by arranging one to one, and its slide block 44 is connected with pull bar 35, and its crank 45 is arranged on reducing motor 46; Order about crank 45 with reducing motor 46 to rotate, the rotary motion of crank 45 is converted to moving back and forth pull bar 35.
According to use occasion and technical requirement, to have selected transmission scheme fluid power system 1., first draft each joint dynamic sieve chamber group selection push-and-pull or lasting push-and-pull in turn, also will draft the interval time of push-and-pull to push-and-pull in turn, also will draft the frequency of round push-and-pull to lasting push-and-pull; To have selected transmission scheme slider-crank mechanism 2., draft the frequency of round push-and-pull.
Chute 51 at the bottom of machine is positioned to be accepted below chamber 14; Consult backing groove between the string shown in Figure 10 and pack into the schematic perspective view accepted before chamber; Between string, backing groove 52 passes static chamber 12 along its strip slot 54, its bottom land to be positioned at below the group of dynamic sieve chamber and to be fixed in frame, through afterwards, also should be bonded on the lateral wall in adjacent stationary chamber 12 by whole silvers of bottom land respectively, its cell wall encloses mutually along the edge of screen(ing) machine and forms.
Spatterproof curtains 53 is used for being trapped among in circle along the surrounding of screen(ing) machine by whole sieve unit, and Spatterproof curtains 53 is in collapsible shape, and its upper end hangs in frame, and lower end is buckled in inside the cell wall of backing groove 52 between corresponding string.Consult the Spatterproof curtains partial schematic diagram shown in Figure 11; When hang Spatterproof curtains 53 run into other parts hinder time, will crack on Spatterproof curtains 53, then the folded curtain collar 55, button 56 and buttonhole 57 will be set on the both sides of seam, then by the stacked and button up 56 in both sides of seam.
Use occasion 1 ~ 6 described below is the supplementary notes of embodiment one.
use occasion 1:the dehydration of flotation concentrates
Technical requirement: single screen(ing) machine treating capacity 0.25t/h, to ore deposit mass concentration 20%, the grade quality being less than 74 μm to ore deposit accounts for 85%; After the dehydration of this screen(ing) machine, product quality concentration 45% on sieve, products collection efficiency 87% on sieve, undersized product mass concentration 4.2%.
Screen(ing) machine design of Structural Parameters: sieve unit number is 6 strings, often string sieve unit establishes 4 joints dynamic sieve chamber group, and its vibrating screen chamber is in demarcating the screen angle of state by being sequentially incremented to 40 ° gradually from 30 ° up and down; 4 joint dynamic sieve chamber group 1. combined by transmission scheme and carry out push-and-pull in turn with hydraulic drive mechanism, the adjustable extent of each dynamic sieve chamber group one-stroke push-and-pull interval time is 0.25min ~ 1min; Screen size is followed successively by 0.1mm, 0.15mm, 0.15mm, 0.2mm from top to bottom.
use occasion 2: the dehydration of flotation of lead concentrate
Technical requirement: single screen(ing) machine treating capacity 0.15t/h, to ore deposit mass concentration 20%, the grade quality being less than 74 μm to ore deposit accounts for 85%; After the dehydration of this screen(ing) machine, product quality concentration 45% on sieve, products collection efficiency 91% on sieve, undersized product mass concentration 3%.
Screen(ing) machine design of Structural Parameters: sieve unit number is 4 strings, often string sieve unit establishes 2 joints dynamic sieve chamber group, and its vibrating screen chamber is in demarcating the screen angle of state by being sequentially incremented to 40 ° gradually from 30 ° up and down; 2 joint dynamic sieve chamber group 1. combined by transmission scheme and carry out push-and-pull in turn with hydraulic drive mechanism, the adjustable extent of dynamic sieve chamber group one-stroke push-and-pull interval time is 0.25min ~ 1min; Screen size is 0.1mm.
use occasion 3:low intensity magnetic separation iron selection tailings does the dehydration before heap
Technical requirement: single screen(ing) machine treating capacity is greater than 4t/h, to ore deposit mass concentration 6.5%, the grade quality being less than 74 μm to ore deposit accounts for 75%; After the dehydration of this screen(ing) machine, product quality concentration 65% on sieve, products collection efficiency 77% on sieve, undersized product mass concentration 1.6%.
Screen(ing) machine design of Structural Parameters: sieve unit number is 20 strings, often string sieve unit establishes 5 joints dynamic sieve chamber group, and its vibrating screen chamber is in demarcating the screen angle of state by being sequentially incremented to 40 ° gradually from 25 ° up and down; 1. 5 joint dynamic sieve chamber group is combined by transmission scheme and carrys out push-and-pull with hydraulic drive mechanism, wherein to 1st ~ 4 joint dynamic sieve chamber group push-and-pulls in turn, the adjustable extent of each dynamic sieve chamber group one-stroke push-and-pull interval time is 0.25min ~ 1min, continue push-and-pull to Section 5 dynamic sieve chamber group, the frequency coming and going push-and-pull is 90 times/min; Screen size is followed successively by 0.1mm, 0.15mm, 0.2mm, 0.2mm, 0.25mm from top to bottom.
use occasion 4: the dehydration before nominal group process filling
Technical requirement: single screen(ing) machine treating capacity is greater than 4t/h, to ore deposit mass concentration 27%, the grade quality being less than 74 μm to ore deposit accounts for 85%; After the dehydration of this screen(ing) machine, product quality concentration 65% on sieve, products collection efficiency 80% on sieve, undersized product mass concentration 6%.
Screen(ing) machine design of Structural Parameters: sieve unit number is 16 strings, often string sieve unit establishes 5 joints dynamic sieve chamber group, and its vibrating screen chamber is in demarcating the screen angle of state by being sequentially incremented to 40 ° gradually from 30 ° up and down; 1. 1st ~ 4 joint dynamic sieve chamber group is combined by transmission scheme and carrys out push-and-pull with hydraulic drive mechanism, wherein to 1st ~ 3 joint dynamic sieve chamber group push-and-pulls in turn, the adjustable extent of each dynamic sieve chamber group one-stroke push-and-pull interval time is 0.25min ~ 1min, continue push-and-pull to Section 4 dynamic sieve chamber group, the frequency coming and going push-and-pull is 60 times/min; 2. Section 5 dynamic sieve chamber group is carried out lasting push-and-pull with slider-crank mechanism by transmission scheme, and the frequency coming and going push-and-pull is 180 times/min; Screen size is followed successively by 0.15mm, 0.15mm, 0.2mm, 0.25mm, 0.25mm from top to bottom.
use occasion 5:the dehydration of all-sliming cyanidation gold extraction mine tailing
Technical requirement: single screen(ing) machine treating capacity is greater than 4t/h, to ore deposit mass concentration 40%, the grade quality being less than 74 μm to ore deposit accounts for 95%; After the dehydration of this screen(ing) machine, product quality concentration 65% on sieve, products collection efficiency 90% on sieve, undersized product mass concentration 9%.
Screen(ing) machine design of Structural Parameters: sieve unit number is 12 strings, sieve unit of often going here and there establishes 4 joints to move sieve chamber group, and its vibrating screen chamber is in demarcating the screen angle of state by sequentially increasing to 40 ° from 35 ° up and down; 1. 1st ~ 3 joint dynamic sieve chamber group is combined by transmission scheme and carrys out push-and-pull with hydraulic drive mechanism, wherein to 1st ~ 2 joint dynamic sieve chamber group push-and-pulls in turn, the adjustable extent of each dynamic sieve chamber group one-stroke push-and-pull interval time is 0.25min ~ 1min, continue push-and-pull to Section 3 dynamic sieve chamber group, the frequency coming and going push-and-pull is 60 times/min; 2. Section 4 dynamic sieve chamber group is carried out lasting push-and-pull with slider-crank mechanism by transmission scheme, and the frequency coming and going push-and-pull is 180 times/min; Screen size is 0.15mm.
use occasion 6:undersized product in use occasion 5 is dewatered as to ore deposit
Technical requirement: single screen(ing) machine treating capacity is greater than 0.4t/h, to ore deposit mass concentration 9%, the grade quality being less than 43 μm to ore deposit accounts for 80%; After the dehydration of this screen(ing) machine, product quality concentration 40% on sieve, products collection efficiency 72% on sieve, undersized product mass concentration 3%.
Screen(ing) machine design of Structural Parameters: sieve unit number is 12 strings, sieve unit of often going here and there establishes 3 joints to move sieve chamber group, and its vibrating screen chamber is in demarcating the screen angle of state by sequentially increasing to 35 ° from 30 ° up and down; 3 joint dynamic sieve chamber group 1. combined by transmission scheme and carry out push-and-pull in turn with hydraulic drive mechanism, the adjustable extent of each dynamic sieve chamber group one-stroke push-and-pull interval time is 0.1min ~ 0.5min; Screen size is 0.1mm.
embodiment two
Plug-type extension folding sieve described in the present embodiment is used for wet screening, comprise some string sieve unit, frame, push-pull mechanism, transmission mechanism, backing groove 52, Spatterproof curtains 53 and the pipeline that adds water between chute 51 at the bottom of machine, string, as shown in figure 12, the flow direction of what arrow represented is ore pulp on compass screen surface.
Compared with embodiment one, describe the plug-type structure of hanging folding sieve of the second, only Consideration is variant and add the pipeline that adds water, and something in common repeats no more.Its Consideration difference is, situation about can dilute the ore pulp in the group of dynamic sieve chamber by wet screening process, drafts initiatively vibrating screen chamber, the screen angle of driven vibrating screen chamber in demarcation state.
According to use occasion and technical requirement, draft the pulp density of wet screening and choose that a few joint dynamic sieve chamber group for wet screening; For this reason when the dynamic sieve chamber group that need add water is with when being spaced apart to chamber, ore deposit 11, just water supply connector 61 need be set in the side in upper static chamber 12, and for water supply connector 61 is with addition of water lines.Refer to the pipeline rout schematic diagram of the pipeline that adds water shown in Figure 13, the pipeline that adds water be need to add water to each draw the athwartship leg 62 that is equipped with water valve to chamber, ore deposit 11 or static chamber 12 respectively, every root athwartship leg 62 draws row's water inlet pipe 63, and water inlet pipe 63 puts in chamber, ore deposit 11 or is socketed in water supply connector 61.
Use occasion 7 described below is the supplementary notes of embodiment two.
use occasion 7: the wet screening of coarse slime
Technical requirement: single screen(ing) machine treating capacity is greater than 4t/h, to ore deposit mass concentration 45%, the grade quality being less than 125 μm to ore deposit accounts for 12%; After this screen(ing) machine wet screening, for reaching deliming effect, on sieve, product is less than the grade quality of 125 μm is 5%; After this screen(ing) machine continues dehydration to the upper product of sieve, on sieve, product moisture content is 20%.
Screen(ing) machine design of Structural Parameters: sieve unit number is 14 strings, sieve unit of often going here and there establishes 6 joints dynamic sieve chamber group, wet screening is carried out by 1st ~ 4 joint dynamic sieve chamber group, its vibrating screen chamber is 30 ° in the screen angle of demarcation state, move sieve chamber group with 5th ~ 6 joints to dewater, its vibrating screen chamber is in demarcating the screen angle of state by sequentially increasing to 40 ° from 35 ° up and down; 1. 1st ~ 5 joint dynamic sieve chamber group is combined by transmission scheme and carrys out push-and-pull with hydraulic drive mechanism, wherein to 1st ~ 4 joint dynamic sieve chamber group push-and-pulls in turn, the adjustable extent of each dynamic sieve chamber group one-stroke push-and-pull interval time is 0.25min ~ 1min, continue push-and-pull to Section 5 dynamic sieve chamber group, the frequency coming and going push-and-pull is 60 times/min; 2. Section 6 dynamic sieve chamber group is carried out lasting push-and-pull with slider-crank mechanism by transmission scheme, and the frequency coming and going push-and-pull is 180 times/min; Screen size is 0.18mm.
Process parameters design: towards adding water to the upper static chamber of chamber, ore deposit and 2nd ~ 4 joint dynamic sieve chamber group, makes ore pulp mass concentration in 1st ~ 4 joint dynamic sieve Zu Shai chamber, chamber for 25% ~ 35% with this.
embodiment three
Plug-type extension folding sieve described in the present embodiment is used for being immersed in the water and carries out wet screening, comprise some string sieve unit, frame, push-pull mechanism, transmission mechanism, backing groove 52, Spatterproof curtains 53 and the pipeline that adds water between chute 51 at the bottom of machine, string, as shown in figure 14, the flow direction of what arrow represented is ore pulp on compass screen surface.
Compare with embodiment two with embodiment one, the third plug-type structure of hanging folding sieve is described, differentiated part is: backing groove between string is sieved chamber group by vertically arranging one to one with dynamic, between Spatterproof curtains and string, backing groove is by arranging one to one, increasing thus and increasing backing groove between string makes it for retaining ore pulp, Spatterproof curtains with backing groove between string increase and segmentation and increasing and shorten with backing groove between string.There is embodiment one can refer to the description of screen(ing) machine agent structure something in common, have embodiment two can refer to the description of the pipeline that adds water, repeat no more.
Between this string, backing groove 52 is positioned under the sliding frame of Dong Shai chamber, place group, is immersed in the water in each sieve chamber under sliding frame with this; Between string, backing groove 52 passes static chamber 12 along its strip slot 54, its bottom land to be positioned at below the group of corresponding dynamic sieve chamber and to be fixed in frame, its cell wall encloses mutually along the edge of screen(ing) machine and forms, front cell wall and rear cell wall should be avoided when push-and-pull and fork 32 is collided, left cell wall and right cell wall should be avoided when push-and-pull and each sieves chamber and collides, and should avoid colliding with sliding frame in the upper edge of cell wall.Through after static chamber 12, also should respectively whole silvers of bottom land be bonded on the lateral wall in adjacent stationary chamber 12.
According to use occasion and technical requirement, draft the pulp density of wet screening and choose that a few joint dynamic sieve chamber group and carry out wet screening for being immersed in the water.During screen(ing) machine work, be also noted that and allow backing trench bottom ore pulp valve ore drawing between string starch, adjust the pulp density between rare string in backing groove with this.
Use occasion 8,9 described below is the supplementary notes of embodiment three.
use occasion 8: the wet screening of iron ore low intensity magnetic separation rough concentrate
Technical requirement: single screen(ing) machine treating capacity is greater than 4t/h, to ore deposit mass concentration 55%, the grade quality being less than 74 μm to ore deposit accounts for 78%; After this screen(ing) machine wet screening, the grade quality that undersized product is less than 74 μm accounts for 90%, is 90% by the screening efficiencies of 74 μm.
Screen(ing) machine design of Structural Parameters: sieve unit number is 15 strings, sieve unit of often going here and there establishes 4 joints dynamic sieve chamber group, and its vibrating screen chamber is 30 ° in the screen angle of demarcation state; 4 joint dynamic sieve chamber group 1. combined by transmission scheme and carry out push-and-pull in turn with hydraulic drive mechanism, the adjustable extent of each dynamic sieve chamber group one-stroke push-and-pull interval time is 0.25min ~ 1min; Screen size is 0.09mm.
Process parameters design: towards adding water to the upper static chamber of chamber, ore deposit and 2nd ~ 4 joint dynamic sieve chamber group, allowing bottom of gullet ore pulp valve ore drawing starch, adjusting the pulp density of backing groove between string with this, and making the ore pulp mass concentration in chamber, sieve chamber be 35% ~ 45%.
use occasion 9: the wet screening of iron ore second segment grinding circuit
Technical requirement: single screen(ing) machine treating capacity is greater than 4t/h, to ore deposit mass concentration 60%, the grade quality being less than 74 μm to ore deposit accounts for 64%; After this screen(ing) machine wet screening, the grade quality that undersized product is less than 74 μm accounts for 85%, is 85% by the screening efficiencies of 74 μm.
Screen(ing) machine design of Structural Parameters: sieve unit number is 15 strings, sieve unit of often going here and there establishes 5 joints dynamic sieve chamber group, wet screening is carried out by 1st ~ 4 joint dynamic sieve chamber group, its vibrating screen chamber is 30 ° in the screen angle of demarcation state, dewater by Section 5 dynamic sieve chamber group, its vibrating screen chamber is 40 ° in the screen angle of demarcation state; 1. 5 joint dynamic sieve chamber group is combined by transmission scheme and carrys out push-and-pull with hydraulic drive mechanism, wherein to 1st ~ 4 joint dynamic sieve chamber group push-and-pulls in turn, the adjustable extent of each dynamic sieve chamber group one-stroke push-and-pull interval time is 0.25min ~ 1min, continue push-and-pull to Section 5 dynamic sieve chamber group, the frequency coming and going push-and-pull is 60 times/min; Screen size is 0.1mm.
Process parameters design: add water towards to the upper static chamber of chamber, ore deposit and 2nd ~ 4 joint dynamic sieve chamber group, allow backing trench bottom ore pulp valve ore drawing between string starch, adjust the pulp density of backing groove between string with this, and make the ore pulp mass concentration in chamber, sieve chamber be 35% ~ 45%.
Above embodiment is to invention has been detailed description, those of skill in the art can be according to the above description, multiple change, amendment, replacement and modification can be carried out to these embodiments under the prerequisite not departing from present inventive concept, and derive multiple use occasion.Thus, some details in embodiment should not form limitation of the invention, and protection scope of the present invention is by claims and equivalents thereof.
Claims (14)
1. a plug-type extension folding sieve, is characterized in that: comprise backing groove (52) between chute (51) at the bottom of frame, sieve unit, push-pull mechanism, transmission system, machine, string;
Described sieve unit comprises to chamber, ore deposit (11), static chamber (12), dynamic sieve chamber group, accepts chamber (16); Each cavity of described sieve unit is the hollow connectivity structure surrounded by surrounding side, sieve unit arranges dynamic sieve chamber group by vertical merogenesis, be communicated with successively from top to bottom to chamber, ore deposit (11), dynamic sieve chamber group, undertaking chamber (16), dynamic sieve chamber group and dynamicly sieve between the group of chamber, dynamic sieve chamber group with between chamber, ore deposit (11), move to sieve between chamber group and undertaking chamber (16) static chamber (12) be all set, static chamber (12) are fixed in frame; Dynamic sieve chamber group comprises vibrating screen chamber and reciprocating gird chamber (14), and wherein vibrating screen chamber comprises initiatively vibrating screen chamber (13) and driven vibrating screen chamber (15), and driven vibrating screen chamber (15), reciprocating gird chamber (14), initiatively vibrating screen chamber (13) are flexibly connected successively; The left and right side in each sieve chamber is provided with screen cloth (19), and the front and back sides in each sieve chamber is rugosity;
Described push-pull mechanism comprises subsides chamber bar (31), fork (32), sliding frame, pull bar (35), paste the junction that chamber bar (31) is positioned at initiatively vibrating screen chamber (13) and reciprocating gird chamber (14), fork (32) is symmetrical arranged by two with active vibrating screen chamber (13) before and after one, one end of fork (32) is fixed in frame as center of rotation, and the other end is connected with subsides chamber bar (31); Fork (32) is connected with sliding frame; In sieve unit, the fork of isometry position is connected with same sliding frame, sliding frame is connected with pull bar (35);
Described transmission system is used for ordering about pull bar (35) and does reciprocating sliding action;
Chute (51) at the bottom of described machine is positioned to be accepted below chamber (14); Between described string, backing groove (52) is through static chamber (12), and its bottom land to be positioned at below the group of dynamic sieve chamber and to be fixed in frame.
2. plug-type extension folding sieve according to claim 1, is characterized in that: described static chamber (12) is all connected by revolute pair (17) with the left and right side of active vibrating screen chamber (13) with reciprocating gird chamber (14), reciprocating gird chamber (14) with driven vibrating screen chamber (15), driven vibrating screen chamber (15).
3. plug-type extension folding sieve according to claim 1, it is characterized in that: the quantity of described sieve unit is 4 ~ 20 strings, the quantity of described dynamic sieve chamber group is 2 ~ 6 joints; In reciprocating gird chamber (14) in time vertical, initiatively the compass screen surface inclination angle in vibrating screen chamber (13) and driven vibrating screen chamber (15) is 25 ~ 40 °.
4. the plug-type extension folding sieve according to claim 1 or 3, is characterized in that: in the group of described often joint dynamic sieve chamber, the length in each sieve chamber and angle meet following formula:
In formula, A, B, C are respectively the length of initiatively vibrating screen chamber (13), driven vibrating screen chamber (15), reciprocating gird chamber (14) in this dynamic sieve chamber group, and in formula, α, β are respectively the screen angle of reciprocating gird chamber (14) in active vibrating screen chamber (13) corresponding time vertical, driven vibrating screen chamber (15) when this dynamic sieve chamber group.
5. plug-type extension folding sieve according to claim 3, it is characterized in that: in reciprocating gird chamber (14) in time vertical, the compass screen surface inclination angle in described active vibrating screen chamber (13) and driven vibrating screen chamber (15) is by sequentially changing from small to big up and down.
6. plug-type extension folding sieve according to claim 1, it is characterized in that: described sliding frame is overlapped by longitudinal traction bar (33) and cross bar (34) and forms, longitudinal traction bar (33) is provided with jack (37), fork (32) stretches in the jack (37) of sliding frame, in sieve unit, the fork (32) of isometry position stretches in the jack (37) of same sliding frame, and pull bar (35) is positioned on the cross bar (34) of end; Described longitudinal traction bar (33) is also provided with sliding component (36), and sliding component (36) supports or is suspended on two, the front and back longitudinal rail beam (22) of described frame.
7. plug-type extension folding sieve according to claim 1, is characterized in that: described transmission system comprises Hydraulic Power Transmission System and/or slider-crank mechanism.
8. plug-type extension folding sieve according to claim 7, it is characterized in that: described Hydraulic Power Transmission System is made up of more than one hydraulic gear, hydraulic gear and pull bar (35) are by arranging one to one, described hydraulic gear comprises hydraulic cylinder (42), and the piston rod of hydraulic cylinder (42) is connected with pull bar (35).
9. plug-type extension folding sieve according to claim 8, is characterized in that: described hydraulic gear shares a hydraulic pump (41).
10. plug-type extension folding sieve according to claim 7, is characterized in that: described slider-crank mechanism and pull bar (35) are by arranging one to one, and its slide block (44) is connected with pull bar (35), and its crank (45) is arranged on reducing motor (46).
11. plug-type extension folding sieves according to claim 1, is characterized in that: described plug-type extension folding sieve also comprises pressure chamber bar (18), and pressure chamber bar (18) pairing embeds at the lateral surface accepting chamber (16).
12. plug-type extension folding sieves according to claim 1, is characterized in that: described plug-type extension folding sieve also comprises water supply connector (61), and water supply connector (61) is positioned at the side of static chamber (12).
13. plug-type extension folding sieve according to claim 1, is characterized in that: between described string, backing groove (52) sieves chamber group by vertically arranging one to one with dynamic, and between string, backing groove (52) is through static chamber (12), and its bottom land is positioned at below the group of corresponding dynamic sieve chamber.
14. plug-type extension folding sieves according to claim 1, it is characterized in that: described dynamic sieve chamber group also comprises Spatterproof curtains (53), between described Spatterproof curtains (53) and string, backing groove (52) is by arranging one to one, Spatterproof curtains (53) is in collapsible shape, its upper end hangs in frame, and lower end is buckled in inside the cell wall of backing groove (52) between corresponding string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510221034.8A CN104874540B (en) | 2015-05-05 | 2015-05-05 | Push-pull hanging and folding screen |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510221034.8A CN104874540B (en) | 2015-05-05 | 2015-05-05 | Push-pull hanging and folding screen |
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| Publication Number | Publication Date |
|---|---|
| CN104874540A true CN104874540A (en) | 2015-09-02 |
| CN104874540B CN104874540B (en) | 2017-01-25 |
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| CN201510221034.8A Expired - Fee Related CN104874540B (en) | 2015-05-05 | 2015-05-05 | Push-pull hanging and folding screen |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728322A (en) * | 2016-04-05 | 2016-07-06 | 昆明理工大学 | Bracing wire type hanging and folding screen |
| CN107744934A (en) * | 2017-10-27 | 2018-03-02 | 安徽省正宇粮食机械有限公司 | A kind of screening plant for grain |
| CN107952666A (en) * | 2017-11-30 | 2018-04-24 | 长安大学 | A kind of multistage construction sand sorting unit |
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| GB1542898A (en) * | 1976-04-06 | 1979-03-28 | Kaiser Resources Ltd | Hydraulic mining apparatus and method |
| CN2745662Y (en) * | 2004-10-26 | 2005-12-14 | 李时珍 | Vertical wet centrifugal sieve |
| CN103071618A (en) * | 2013-02-04 | 2013-05-01 | 中国矿业大学 | Vibration classifying screen device |
| CN203508385U (en) * | 2013-10-23 | 2014-04-02 | 会理县鸿运有限责任公司 | Mineral separation unit |
| CN204672548U (en) * | 2015-05-05 | 2015-09-30 | 昆明理工大学 | A kind of plug-type extension folding sieve |
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2015
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1542898A (en) * | 1976-04-06 | 1979-03-28 | Kaiser Resources Ltd | Hydraulic mining apparatus and method |
| CN2745662Y (en) * | 2004-10-26 | 2005-12-14 | 李时珍 | Vertical wet centrifugal sieve |
| CN103071618A (en) * | 2013-02-04 | 2013-05-01 | 中国矿业大学 | Vibration classifying screen device |
| CN203508385U (en) * | 2013-10-23 | 2014-04-02 | 会理县鸿运有限责任公司 | Mineral separation unit |
| CN204672548U (en) * | 2015-05-05 | 2015-09-30 | 昆明理工大学 | A kind of plug-type extension folding sieve |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728322A (en) * | 2016-04-05 | 2016-07-06 | 昆明理工大学 | Bracing wire type hanging and folding screen |
| CN105728322B (en) * | 2016-04-05 | 2017-07-28 | 昆明理工大学 | A kind of stay-supported hangs folding sieve |
| CN107744934A (en) * | 2017-10-27 | 2018-03-02 | 安徽省正宇粮食机械有限公司 | A kind of screening plant for grain |
| CN107952666A (en) * | 2017-11-30 | 2018-04-24 | 长安大学 | A kind of multistage construction sand sorting unit |
| CN107952666B (en) * | 2017-11-30 | 2023-06-23 | 长安大学 | Multistage sand sorting unit for building |
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| CN104874540B (en) | 2017-01-25 |
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