CN1023688C - Heavy medium separator exhausting waste rock from bottom - Google Patents

Heavy medium separator exhausting waste rock from bottom Download PDF

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Publication number
CN1023688C
CN1023688C CN 88109067 CN88109067A CN1023688C CN 1023688 C CN1023688 C CN 1023688C CN 88109067 CN88109067 CN 88109067 CN 88109067 A CN88109067 A CN 88109067A CN 1023688 C CN1023688 C CN 1023688C
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China
Prior art keywords
discharge refuse
chamber
discharge
gangue
suspension
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Expired - Fee Related
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CN 88109067
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CN1041294A (en
Inventor
张学骞
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LUOYANG MINE MACHINE PLANT
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LUOYANG MINE MACHINE PLANT
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Publication of CN1023688C publication Critical patent/CN1023688C/en
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Abstract

The present invention belongs to a mineral concentration device which is mainly used for concentrating coal and non-ferrous metal. The mineral concentration device adopts a new gangue discharging mode and a structure, a gangue discharging device can carry out gangue collection, gangue discharge and liquid charge alternatively and circularly, gangue is discharged out of a machine from the bottom of the gangue discharging device by self weight, a large complicated gangue discharging device does not need to be arranged, and the problems brought by the large complicated gangue discharging device are avoided. A suspension liquid distribution device of the mineral concentration device controls the flow line and the flow velocity of the down flow of the suspension liquid to charge liquid for the gangue discharging device, the stabilization of the performance such as specific gravity, etc. of the suspension liquid at the separating layer is guaranteed, and thereby, a separation groove at the upper part carries out separation continuously, and the gangue discharging device at the lower part discharges the gangue alternatively and intermittently to complete the whole separation process.

Description

Heavy medium separator exhausting waste rock from bottom
The invention belongs to preparation equipment, be mainly used in coal separation, also can be used for the different solid material of other proportion of sorting.Especially the dense media separator that relates to the large-scale bottom discharge refuse of a kind of sorting granularity from several millimeters to the hundreds of millimeter.
Present widely used various large-scale dense media separators are although its structure, discharge refuse mode and to the control method form difference of suspension flow are substantially similar substantially.Wherein more representational have:
De Lubaoyi inclined lifting wheel separator, its design feature are that the discharge refuse wheel discharge refuse wheel that to place sorting groove one side, discharge refuse mode obliquely be the heavy material that will sink to bottom land through sorting by rotation rises to outside the top discharge machine.
Tai Sika vertical lifting wheel separator, this machine just structurally are with the vertical placement of discharge refuse wheel with regard to its operation principle and what difference Yan Yuke wheel separator does not have, and the sorting groove is arranged on inside the discharge refuse wheel rim.
Enlightening is swelled vertical lifting wheel separator: the maximum characteristics of its structure are to adopt large-scale flat belt that lifting wheel (discharge refuse wheel) vertically is suspended in the middle of the sorting groove, and drive its rotation realization discharge refuse.
The cylinder type separator: its structure is that a cylinder is bearing on two support rollers, by the longitudinal baffle that is fixed on cylinder interior hypostasis is picked up, and finishes dispensing outside chute is discharged machine.
The scraper-type separator: mainly be made up of sorting groove and (or two a) scraping transporter, during work, light thing is scraped by top conveyer chain, and hypostasis is scraped by bottom conveyer chain.
Use maximum various dense media separators both at home and abroad at present except above-mentioned, the described various separators of documents that some patents are still arranged, should illustrate a bit, these separators all can not adapt to the requirement of modern production characteristics, big as production capacity, the big sorting scope of granularity from several millimeters to the hundreds of millimeter etc.
Documents US2220925 separator, be to be connected to a conduit at taper sorting trench bottom, the conduit bottom is connected to a spoil collection container, this container respectively is provided with a gate valve up and down, in taper sorting groove, pressed the different after separatings of proportion by sorting material, heavy material sinks to temporary transient storage the in the conduit of cone tank bottom, and then sequentially opens upper and lower two valves, discharges outside the machine after the collection of spoil collection container is full again.For preventing sorting groove lower guide pipe plug plug, pour from the outside water pipe of introducing, this part water and the collection container replacing water of mentioning later form current vertically upward in the sorting groove.Upwards replace current owing to when the spoil collection container discharges weight, causing from conduit, so draw a pipe from spoil collection container top, one through to sorting tank liquor face top, regulate the height that it exceeds the liquid level part, it is big little to control in the conduit overflow displacement current, and it is heavy to attempt to regulate taper sorting groove inner suspension liquor ratio.
Documents US2877896 separator, its basic structure is identical with documents 1 separator, and is only different on suspension specific gravity control method.This machine is earlier to the dense suspension slurry of taper sorting groove upper strata input, simultaneously, different horizontal levels injects clear water in the sorting groove respectively, try hard in taper sorting groove, vertically set up the suspension layers of three layers of different specific weight, compare by the hydraulic pressure difference between each horizontal liquid layer of METHOD FOR CONTINUOUS DETERMINATION and with predetermined value again, with than regulating above-mentioned clear water inflow by qigong water valve than the difference form the basis, thereby set up upper strata proportion minimum (being bordering on clear water), middle is sorting layer proportion maximum, three kinds of proportion suspension layers that lower floor's proportion reduces again reach the sorting requirement with this.
Documents US2746603 separator is divided into two the sorting groove with dividing plate on taper sorting groove top, and fraction is a feed zone, and is most of for dividing the constituency.Feed zone is equipped with breaker, and material is broken by disintegrating machine and breaks up, and enters the branch constituency through the lower partition again.The scraper plate conveying arrangement is housed above the branch constituency, and the light material that swims in top is discharged outside the separator by this device; Heavy material sinks at the bottom of the cone tank, regularly opens bottom valve heavy material is discharged.Bottom valve is to open and close with cam mechanism control.Portion and bottom introduce the suspension pipe respectively on the upper side at cone tank,, and form upward water flow by the upwards nozzle input suspension of pipe end.When regularly opening the bottom valve discharge refuse, to cause that whole liquid level descends in the sorting groove, when closing this valve, liquid level raises again gradually, stir the interruption of carrying out sorting and light material by the fluctuating of this suspension layers that produces along with the discharge refuse process and discharge, improve separating effect.As if manufacturing that above-mentioned two cone tank systems are serially connected, can become the three products separator.
In view of the existing existing problem of various large-scale dense media separators, the present invention attempts from making material carry out sorting fully under " static(al) " condition, improve sharpness of separation and efficient to greatest extent, improving the viewpoint of production capacity sets out, adopted the new structure of a cover, set up the independent and complete suspension hierarchy of control, and suspension controlling organization and machine body structure are organically combined, and make machine simple to greatest extent compact, thereby reached purpose of the present invention.
The concrete scheme that the present invention takes is: be rectangle on top, the sorting trench bottom that the bottom is inverted pyramids is connected to the discharge refuse chamber of a group (being connected to two or more side by side), by intervening vaive discharge refuse chamber and sorting groove is separated fully.In side, discharge refuse chamber a casing-distribution water tank is set, there is a control water valve corresponding each the discharge refuse chamber of this water tank.By the gravity flow screen kerve sorting groove and distribution water tank are communicated with, form a complete closed circuit assembly and send each discharge refuse chamber of signal controlling from alternately collecting cash-discharge refuse-topping up supervisor by turns with the distribution water tank by material-level detecting device, the weight that will have sorting groove upper strata sorting settling to get off is collected in the discharge refuse chamber and discharges outside the machine.Simultaneously by the formed closed cycle of this combining structure, streamline, flow and flow velocity and the variation thereof of suspension in the control separator, make suspension carry out sorting material earlier and participate in discharge refuse again, and guarantee its stable in properties, thereby the top continuous feed of sorting groove, continuous sorting have been realized, discharge light material continuously from effluent head, discharge heavy material discontinuously, finish whole assorting room from the separator bottom.The present invention also is provided with needed other parts of assorting room, can adopt existing structure, as discharge wheel etc.
Separator of the present invention has following characteristics:
1, the assorting room of material comprises the interference of the liquid stream of machinery without any the interference of form in the sorting groove, and material carries out sorting under intimate complete statical condition, improved sharpness of separation.
2, fundamentally eliminated the existing serious wear of existing dense media separator, suspension character instability, a series of problems such as frequent obstruction.
3, entire machine is by programme-control work, material (except the light material) in machine motion and suspension flow with variation all by himself kinetic energy and potential energy work done, must additionaling power; Easy and simple to handle, save energy consumption.
4, the qualified suspension that enters separator all carries out the material sorting earlier, participates in the discharge refuse process again and makes suspension obtain twice effectively utilization.
5, enlarged the sorting particle size range, from several millimeters to the hundreds of millimeter, especially lower limit can reach not half, up to heavily be situated between the method sorting not till.
6, can adopt than the coarseness heavy weight additive, reduce its preparation cost.
7, machine have to large scale development fully may, except that width was done corresponding increase, other was two less to increasing.
8, machine construction is simple, compact, and size is little, in light weight, compares with the same specification inclined lifting wheel separator wherein to measure and reduces approximately more than 1/3, and easy to manufacture, maintenance capacity is few.
The present invention provides the following drawings:
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is the longitudinal sectional drawing of Fig. 1.
Fig. 3 distributes the water tank schematic diagram for the present invention.
Fig. 4 is the longitudinal sectional drawing of Fig. 3.
Fig. 5 is a material-level detecting device schematic diagram of the present invention.
Fig. 6 is the side direction view of Fig. 5.
The embodiment that provides below in conjunction with above accompanying drawing is further described the work system of separator of the present invention and the structure of machine:
As accompanying drawing 1, shown in 2, the present invention mainly comprises: top is rectangle, the bottom is inverted pyramids sorting groove (1), be connected to one group of (two or more) discharge refuse chamber (4) in sorting groove (1) bottom, (8), in sorting groove (1) and discharge refuse chamber (4), intervening vaive (2) is set (8), be provided with a casing-distribution water tank (6) in front side, discharge refuse chamber, there is a control water valve (9) wherein corresponding each discharge refuse chamber, kerve (26) by gravity flow screen (11) is communicated with the overfall of sorting groove (1) with distributing water tank (6), form the combining structure of a closed cycle, the indoor material-level detecting device (3) that is provided with of each discharge refuse, bottom valve (7) and electronic tapping valve (10) are provided with discharge wheel (5) at the effluent head of sorting groove.
The operation principle of separator of the present invention is as follows: qualified dense medium suspension liquid is from the feed pipe input of material feeding end bottom, be full of whole sorting groove (1) and form two strands of liquid streams, one is a horizontal flow, flow to coal exit from material feeding end, flow out the sorting groove by overfall, flow into distribution water tank (6) through gravity flow screen and kerve (26) thereof.Another strand is sinking, pass through intervening vaive (2) downwards from sorting groove top and enter the discharge refuse chamber, enter through control water valve (9) again and distribute water tank (6), according to the location status shown in the accompanying drawing 1,2, this burst decline liquid stream is introduced into discharge refuse chamber (8), flows into by corresponding control water valve (9) and distributes water tank (6).This moment is if the discharge refuse chamber of closing (4) is in the topping up stage, then just another control water valve (9) enters discharge refuse chamber (4) to this part decline liquid stream in the water tank (6) by distributing, if discharge refuse chamber this moment (4) is not to be in the topping up stage, then these part current just lodge in the distribution water tank (6) standby.After water tank amasss completely, just flow into the medium recovery system automatically.If water tank ponding occurs when not enough, also can introduce supplementing water and carry out topping up from the medium recovery system; When supplementing water is unnecessary, also will flow back to the medium recovery system automatically.Arrow is depicted as the mobile direction of suspension among Fig. 1,2.Intervening vaive is opened when top, discharge refuse chamber (4), and top, discharge refuse chamber (8) is closed, and the decline liquid stream in the sorting groove just passes through discharge refuse chamber (4) and enters distribution water tank (6).Distribute two the control water valves (9) in the water tank to realize controlling flow, the topping up of descent waterflow in the sorting groove and close the topping up supervisor by two hydraulic oil cylinder driving respectively.
Raw coal feeds from material feeding end top, moves to discharge end under horizontal suspension flow effect.At the volley, material is able to loose and separates and layering, swim in the upper strata of suspension less than the material of the specific gravity of separation, in the time of near it moves to overfall, under the help of discharge wheel (5) outside gravity flow screen de-mediated discharge machine, the hypostasis material of the big grain specific gravity of separation sinks to sorting groove (1) bottom, press accompanying drawing 1, position shown in 2, intervening vaive (2) is closed discharge refuse chamber (4), open discharge refuse chamber (8), so the weight that settles down enters discharge refuse chamber (8), when heavy material is long-pending when completely arriving certain altitude, the material-level detecting device of this chamber (3) sends signal, and intervening vaive (2) is opened the collection heavy material with discharge refuse chamber (4), the control water valve (9) of its correspondence is closed to and gives the opening degree of setting earlier, the flow of control sorting groove decline liquid stream; Simultaneously, close discharge refuse chamber (8), the control water valve (9) of its correspondence also cuts out, and electrically operated valve (10) is opened, and indoor suspension is discharged back the medium recovery system, then opens bottom valve (7) and discharges heavy material.Close this chamber bottom valve (7) and electrically operated valve (10) subsequently, the control water valve (9) of opening correspondence is to discharge refuse chamber (8) topping up, for next cycle set cash is got ready.Behind discharge refuse chamber (4) long-pending full weight, the material-level detecting device (3) by this chamber sends signal equally, and intervening vaive is closed discharge refuse chamber (4), and its corresponding control water valve (9) also cuts out; Discharge refuse chamber (8) collection heavy material that is opened simultaneously; The control water valve (9) of its correspondence is closed to and gives the opening degree position of setting earlier, control sorting groove decline liquid stream size.And discharge refuse chamber (4) repeat discharge refuse, topping up supervisor after discharge refuse chamber (8) is closed.So, by sorting groove (1), two (or more than two) discharge refuse chambers (4), (8), and the circulation combining structure of communicating with each other that each self-corresponding control water valve (9), distribution water tank (6) and gravity flow screen kerve (26) are formed is alternately collected spoil (controlling descent waterflow simultaneously)-a series of programs such as discharge refuse-topping up by turns, make entire machine top continuously carry out sorting, discharge light material from overfall, discharge weight discontinuously in the machine bottom, finish whole assorting rooms.
The present invention with the structure of suspension control system and machine body structure organically melt and dissolved be one, be achieved by a cover mechanism, machine is greatly simplified.In other words, sorting groove of the present invention (1), intervening vaive (2), the circulation combining structure of communicating with each other that discharge refuse chamber (4), (8), distribution water tank (6) and gravity flow screen kerve (26) are formed, have " static(al) " sorting material simultaneously and make its retention properties stablize two kinds of effects, make the dense medium suspension liquid that enters separator be used for sorting earlier and participate in twice acting of discharge refuse again with control suspension.Introduction had been done in " static(al) " sorting material part front, and will suspend to this structure control below makes one description of the stable do of its retention properties;
Sorting groove top is the rectangle cell body, makes that the suspension streamline is straight, resistance is little, the liquid levelling is steady, is beneficial to realize the static(al) sorting.The sorting groove adopts decline liquid stream, and is consistent with weight sedimentation direction, do not disturb.The notch area is very big, make that to fall liquid flowing speed under the suspension upper strata very little, even unobvious, material comes layering by the density size of itself fully, be not subjected to the influence of sinking flow velocity, sorting groove bottom is inverted pyramids, its horizontal sectional area from top to bottom reduces gradually, up to middle valve port (2), suspension sinking flow velocity is increased gradually, the heavy weight additive that top is precipitated and circuitous easily and be trapped in the small particles material of certain liquid layer of bottom and near the material of the specific gravity of separation, comply with the rule that it must sink directly carries and enters the discharge refuse chamber.Because discharge refuse of the present invention chamber and the well-separated separate chamber of sorting groove, suspension has only unique decline liquid stream herein, there is not the interference of other any liquid stream, therefore, the heavy material that enters into the discharge refuse chamber just can not float again and enter the sorting groove and the top material is obscured, so both guarantee normally carrying out continuously of top assorting room, guaranteed top suspension stable in properties again.After the suspension sinking enters the discharge refuse chamber, the sectional area of runner obviously increases again, flow stream velocity is slowed down, streamline is folded to oblique upper simultaneously, enters by control water valve (9) and distributes water tank (6), at this moment, be carried the granule that enters the discharge refuse chamber and near the material of the specific gravity of separation, still move according to direction vertically downward under the effect of inertia force, sink to bottom, discharge refuse chamber with carrying the disengaging of liquid stream, suspension obtains certainly self-cleaning effect clearly.As required, the proportion of suspension can also be regulated in the discharge refuse chamber, make it more appropriate to granule and near the sedimentation and the collection of specific gravity of separation material.
Each valve event program of entire machine drives oil cylinder by electric control system control Hydraulic Station and finishes, and is easy and simple to handle.
The present invention also can adopt following discharge refuse form: cancel electronic tapping valve (10) and top sieve plate thereof, heavy material and suspension are emitted together, so can save first discharge opeing required time.
Distribution water tank shown in the accompanying drawing 3,4 is a rectangular box (12), and reality also is a chamber or a cell body, on one side wherein be provided with downflow weir (15) and overflow outlet (17) away from the discharge refuse chamber.Near the discharge refuse chamber on one side, corresponding each discharge refuse chamber all is provided with a control water valve (9), and this valve is driven and controlled by oil cylinder (14), limit switch (13).Distribute water tank also to be provided with and replenish suspension interface (16), when needs, can connect with suspension system water return pipeline.Collect from the suspension of gravity flow screen (11) underflow and sorting sinking usefulness by above-mentioned distribution water tank, and control decline flow and filling liquid measure automatically in order to discharge refuse chamber filling suspension.
Accompanying drawing 5,6 material-level detecting devices are special in this solid material level of measuring in suspension designs, and are characterized in simple and reliable for structure.It has a transverse axis (19) to pass the top that discharge refuse locular wall plate is contained in the discharge refuse chamber, transverse axis (19) on one section of discharge refuse chamber interior separately certain distance two length-adjustable test rods (24) are housed, transverse axis is in the outdoor one section end of discharge refuse.Be fixed with disk (18) and top noncontacting switch (21), crank (23) and top switch baffle plate (22) thereof thereof, be connected in the spring (20) between disk (18) and the crank (23), crank (23) end is connected with electric pushrod (25).Crank (23) can relatively rotate with transverse axis (19), when electric pushrod (25) timed motion, drive crank (23) rotation and make test rod rotate an angle by spring (20) drive disk (18) and transverse axis (19), when test rod contact stockpile, because of being obstructed, it stops operating, switch baffle plate (22) is then along with crank is rotated further, up to meeting with noncontacting switch (21) and making it send signal.When material level is low, test rod (24) does not reach stockpile, and do not produce relative motion between switch (21) and the switch baffle plate (22) this moment, just can not meet, also just can not send signal, test rod returns the home position again turn over an angle under electric pushrod drives after.

Claims (4)

1, a kind of heavy medium separator exhausting waste rock from bottom, mainly by the sorting groove, the discharge refuse chamber, compositions such as downflow weir, be mainly used in coal separation, also can the different solid mixture material of other proportion of sorting, it is characterized in that: be rectangle on top, the bottom be the sorting groove (1) of being inverted pyramidal structure below be connected to one group and be used for by turns alternately two or more side by side discharge refuses chamber (4) of topping up-collection spoil-discharge refuse, (8), be provided with the distribution water tank (6) of the suspension of a collection after participating in assorting room in the side of discharge refuse chamber, in sorting groove (1) and discharge refuse chamber (4), (8) be provided with between and can make sorting groove (1) and discharge refuse chamber (4), (8) close and open intervening vaive (2), a material-level detecting device (3) is arranged in each discharge refuse chamber, a discharge refuse valve (7) and an electronic tapping valve (10) bottom one, corresponding each discharge refuse chamber is provided with that a control decline liquid flows and to the control water valve (9) of discharge refuse chamber topping up in distributing water tank (6), and the chamber of corresponding discharge refuse with it communicates, kerve (26) by gravity flow screen (11) is connected together the overfall of sorting groove with distributing water tank (6), form a closed circuit combining structure of integral body.
2, according to the described heavy medium separator exhausting waste rock from bottom of claim 1, it is characterized by: a material-level detecting device is set in that each discharge refuse is indoor, the transverse axis of this device (19) passes the top that discharge refuse locular wall plate is contained in the discharge refuse chamber, transverse axis (19) on indoor one section of discharge refuse separately certain distance fix two length-adjustable test rods (24), transverse axis (19) the end of one section of discharge refuse outdoor fixed installation disk (18) and above noncontacting switch (21), crank (23) and top switch baffle plate (22) thereof, be connected in spring (20) and electric pushrod (25) between disk (18) and the crank (23).
3, according to the described heavy medium separator exhausting waste rock from bottom of claim 1, it is characterized in that: distribute corresponding each the discharge refuse chamber of water tank (6) all to be provided with a control water valve (9) and to drive oil cylinder (14), there is not downflow weir (15) overflow outlet (17) in addition, replenish suspension interface (16), when needed can be with interface (16) and the return pipe connection of workshop suspension system.
4, according to the described heavy medium separator exhausting waste rock from bottom of claim 1, it is characterized in that: discharge refuse chamber (4), (8) bottom can be adopted and be provided with electronic tapping valve (10) and two kinds of versions of this valve of cancellation.
CN 88109067 1988-09-30 1988-09-30 Heavy medium separator exhausting waste rock from bottom Expired - Fee Related CN1023688C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 88109067 CN1023688C (en) 1988-09-30 1988-09-30 Heavy medium separator exhausting waste rock from bottom

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 88109067 CN1023688C (en) 1988-09-30 1988-09-30 Heavy medium separator exhausting waste rock from bottom

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Publication Number Publication Date
CN1041294A CN1041294A (en) 1990-04-18
CN1023688C true CN1023688C (en) 1994-02-09

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CN 88109067 Expired - Fee Related CN1023688C (en) 1988-09-30 1988-09-30 Heavy medium separator exhausting waste rock from bottom

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102416358B (en) * 2010-09-28 2015-03-04 吴德荣 Coal washer with drainage plate
CN106237701A (en) * 2016-08-30 2016-12-21 山东金阳矿业集团有限公司 A kind of portable medium-separation device
CN108787156B (en) * 2018-06-06 2020-04-21 夏特 Crop seed screening equipment of two-step method screening

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