CN110152358A - A kind of dense sand warehouse of depth cone for putting sand device with fluidisation - Google Patents
A kind of dense sand warehouse of depth cone for putting sand device with fluidisation Download PDFInfo
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- CN110152358A CN110152358A CN201910435486.4A CN201910435486A CN110152358A CN 110152358 A CN110152358 A CN 110152358A CN 201910435486 A CN201910435486 A CN 201910435486A CN 110152358 A CN110152358 A CN 110152358A
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- sand warehouse
- sand
- feedwell
- cone
- fluidisation
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- 239000004576 sand Substances 0.000 title claims abstract description 117
- 238000005243 fluidization Methods 0.000 title claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 19
- 238000005189 flocculation Methods 0.000 claims description 11
- 230000016615 flocculation Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 18
- 239000006228 supernatant Substances 0.000 abstract description 9
- 239000012530 fluid Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 description 17
- 239000007787 solid Substances 0.000 description 17
- 230000009286 beneficial effect Effects 0.000 description 10
- 238000004062 sedimentation Methods 0.000 description 10
- 230000005484 gravity Effects 0.000 description 7
- 238000004537 pulping Methods 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 239000000725 suspension Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011859 microparticle Substances 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 230000008719 thickening Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 230000003311 flocculating effect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0039—Settling tanks provided with contact surfaces, e.g. baffles, particles
- B01D21/0042—Baffles or guide plates
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/0087—Settling tanks provided with means for ensuring a special flow pattern, e.g. even inflow or outflow
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/01—Separation of suspended solid particles from liquids by sedimentation using flocculating agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/02—Settling tanks with single outlets for the separated liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/2405—Feed mechanisms for settling tanks
- B01D21/2411—Feed mechanisms for settling tanks having a tangential inlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/24—Feed or discharge mechanisms for settling tanks
- B01D21/245—Discharge mechanisms for the sediments
- B01D21/2472—Means for fluidising the sediments, e.g. by jets or mechanical agitators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/262—Separation of sediment aided by centrifugal force or centripetal force by using a centrifuge
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D21/00—Separation of suspended solid particles from liquids by sedimentation
- B01D21/26—Separation of sediment aided by centrifugal force or centripetal force
- B01D21/265—Separation of sediment aided by centrifugal force or centripetal force by using a vortex inducer or vortex guide, e.g. coil
Abstract
The present invention relates to a kind of depths for putting sand device with fluidisation to bore dense sand warehouse, including sand warehouse body, feed pipe, flocculant inlet tube, overflow launder, feedwell, circulation well, annular deflection cone and stirring fluidizer；It is fixedly connected at the top of overflow launder and the inner wall of sand warehouse body and is connected with supernatant return pipe；Feedwell is arranged at the top center of sand warehouse body and is fixedly connected with sand warehouse body；Circulation well is arranged in feedwell and is fixedly connected with feedwell, and feed zone is formed between feedwell and circulation well；Feed pipe is connected with feed zone；Annular deflection cone is set to the underface of circulation well and is fixedly connected with the inner wall of sand warehouse body, and the diameter at the top of annular deflection cone is identical as the diameter of circulation well；The bottom of sand warehouse body has discharge port, and stirring fluidizer is fixedly connected with discharge port.The present invention forms special flow field after so that tailing is entered sand warehouse, the no gentle power of waterpower consumes, fluid effect is good, guarantees that pulp consistency does not reduce and will not reduce dense effect.
Description
Technical field
The present invention relates to mine technical field of environment protection equipment, and in particular to a kind of depth cone for putting sand device with fluidisation is dense
Sand warehouse.
Background technique
It is general to use when the low concentration tailing of mine output in dressing Production Process carries out thickening processing
Concentrator or vertical sand warehouse.The concentrator of the prior art is mostly rake discharging, there is take up a large area, structure is complicated, consumption
The problems such as power is high, thickening efficiency is low and maintenance and repair is complicated, for the tailing of the high solidity of concentrator lower part sedimentation, also
There is the danger of pressure rake.
In the bottom of concentrator or vertical sand warehouse, after granule density reaches certain value, the rheological behavior of slurry is in non-
Newtonian fluid feature, yield stress are larger, it is difficult to realize smooth discharge.Common concentrator or vertical sand warehouse is generally using knot
The mud scraper of structure complexity realizes high concentration ore drawing；Or add nozzle in orlop portion, using high pressure spray water nozzle fluidization pulping,
The technologies such as strength pulping or Pneumatic-hydraulic interlocked pulping come realize high concentration discharge.These types of fluidization pulping mode has many disadvantages
End: structure is complicated for mud scraper type concentrator, manufacturing cost is high, and power consumption is big, and there is also the hidden danger of pressure rake when operation；High pressure
The tailings concentration that water spout fluidization pulping will cause discharge reduces, and influences concentrated effect；Strength pulping is then due to bubble
Rise the natural subsidence effect for disturbing tailing, reduces dense rate；Pneumatic-hydraulic interlocked pulping, which then has concurrently, keeps the tailing of discharge dense
Degree reduction and interference tailing natural subsidence reduce the adverse consequences of dense rate.
Therefore how to provide a kind of sand warehouse realization mine the efficient and high concentration of tailing is selected to discharge is that the present invention to be solved
The problem of.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of depths for putting sand device with fluidisation to bore dense sand warehouse, realizes
The efficient and high concentration of tailing is selected to discharge in mine.
The technical scheme to solve the above technical problems is that a kind of depth for putting sand device with fluidisation bores dense sand
Storehouse, including sand warehouse body, feed pipe, flocculant inlet tube, overflow launder, feedwell, circulation well, annular deflection cone and stirring fluidisation dress
It sets；It is fixedly connected at the top of the overflow launder and the inner wall of the sand warehouse body；During the feedwell is set at the top of the sand warehouse body
It is fixedly connected at the heart and with the sand warehouse body；The circulation well is set in the feedwell and consolidates with the top of the feedwell
Fixed connection, forms feed zone between the feedwell and the circulation well；The feed pipe is connected with the feed zone；It is described
Annular deflection cone is set to the underface of the circulation well and is fixedly connected with the inner wall of the sand warehouse body, the annular deflection cone
The diameter at top is identical as the diameter of the circulation well；The bottom of the sand warehouse body has discharge port, the stirring fluidizer
It is fixedly connected with the discharge port.
The beneficial effects of the present invention are: the depth of the present invention that there is fluidisation to put sand device bores dense sand warehouse, eliminate
Mud scraper and its transmission drive bore dense sand warehouse using the depth of special construction, form special flow after so that tailing is entered sand warehouse
, it realizes the flocculation conglomeration sedimentation of coarse grained gravity natural subsidence and fine fraction tailing, accelerates the wadding of subparticle tailing
The poly- speed of nodule.With it is existing put sand technology compared with the present invention without the consumption of waterpower gentle power, fluid effect is good, guarantees pulp consistency not
Reduce and will not reduce dense effect.The present invention also has that small in size, structure is simple, manufacturing cost is low, thickening efficiency is high, bottom
The distinguishing features such as big, the non-maintaining and low dynamics consumption of concentration are flowed, there is wide applicability.
Specifically, feed pipe and flocculant inlet tube are connected with described with the feed zone respectively.Feed pipe is used for
Tailing is conveyed, flocculant pipeline is for conveying flocculant.
Specifically, the feedwell is fixedly connected by steel structure support with the side wall of sand warehouse body, the feedwell and sand
There is the space passed through for material between the side wall of warehouse.
Specifically, the circulation well is fixedly connected with the top of the feedwell by steel structure support, the top of feed zone
It does not close in portion.
Specifically, the annular deflection cone is fixedly connected by steel structure support with sand warehouse body sidewall.
Specifically, the side wall of the sand warehouse body corresponds to the overflow launder with overflow hole, overflow launder by overflow hole with it is upper
The connection of clear liquid collection conduit；Or including the fixed supernatant return pipe for being threaded through sand warehouse body sidewall, the overflow launder and supernatant
Return pipe is connected, and the supernatant return pipe is connected to supernatant collection pipeline.Supernatant reflux line and external supernatant
Liquid collecting pit is connected.
Based on the above technical solution, the present invention can also be improved as follows.
Further, the top of the sand warehouse body is the open cylinder barrel shaped in top, and lower part is the downward taper barrel of the vertex of a cone,
The cone angle of the taper barrel is less than the angle of repose of tailing.
Beneficial effect using above-mentioned further scheme is: the angle of repose that the cone angle of the taper cone barrel of lower part is less than tailing is set
Meter, it is possible to prevente effectively from tailings knot encircles.
Specifically, angle of repose, also makees angle of repose, it is that inclined-plane makes object placed on it be in the critical shape to glide along inclined-plane
When state, (i.e. as inclination angle increases, the object on inclined-plane will easier downslide with minimum angles formed by horizontal surface；Work as object
When body reaches the state for starting to glide, the angle of the critical state is known as angle of repose).
Further, the feed pipe is connected along the tangential direction of the feedwell with the feedwell, and with it is described into
Material area is connected.
Beneficial effect using above-mentioned further scheme is: low concentration tailing is sent along cylinder-shaped feedwell inner wall tangential direction
Enter feedwell.In the feedwell, coarse fraction tailing realizes thickness along feedwell side wall by centrifugal force caused by feedstock flow
The separation of grade, the coarse fraction tailing in periphery after separation sink by gravity；The low concentration fine fraction tailing of inside and same
When be sent into the flocculant of the feedwell and obtain sufficient disperse and mixing in rotational flow field environment.
Further, the flocculant inlet tube is the circulating line that the feed zone is arranged in, and is had on the circulating line
There is the discharge port that Open Side Down, the discharge port is connected with the feed zone.
Beneficial effect using above-mentioned further scheme is: flocculant is fed by flocculant input duct, and from annular
The downward discharge port opened up on pipeline spurts into feed zone.In feed zone, low concentration tailing and it is sent into the feedwell simultaneously
Flocculant sufficient disperse and mixing are obtained in High Speed Flow Field environment.
Further, the upper edge of the feedwell is higher than the overflow launder, and the upper edge of the feedwell is higher than described follow
The upper edge of ring well.
Beneficial effect using above-mentioned further scheme is: the upper surface of feedwell protrudes from the overflow weir of sand warehouse body, makes
Tailing in the deep clarified solution and feedwell for boring dense sand warehouse top is isolated；It overflows lower than side in sand warehouse body the upper surface of circulation well
Edge and tubular feedwell upper surface on weir are flowed, so that low concentration suspension is only capable of the overflow into tubular feedwell.
Further, the annular deflection cone is the positive cone cylinder and inversed conical drum that top is fixedly connected, the annular deflection cone tool
There are an inner conical surface and male cone (strobilus masculinus), the angle of the inner conical surface and the male cone (strobilus masculinus) is 60 °.
Beneficial effect using above-mentioned further scheme is: can increase the settling area of sand warehouse, to increase CHARACTERISTICS OF TAILINGS SAND
Treating capacity；Diversion effect is good when male cone (strobilus masculinus) angle is 60 ° in the top of annular deflection cone.
Further, the top of the circulation well is cylindrical shape, and lower part is positive cone cylinder, the columnar lower edge with it is described
The upper edge of positive cone cylinder is fixedly connected, and the lower end of the circulation well has a water conservancy diversion conical surface, the diameter of water conservancy diversion conical surface lower end with
Diameter at the top of the annular deflection cone is equal.
Beneficial effect using above-mentioned further scheme is: the coarse fraction tailing in feed zone is naturally heavy along feedwell inner wall
The male cone (strobilus masculinus) of the circulation well is dropped down onto, fine fraction tailing is settled down to the outer cone of the circulation well in conjunction with flocculant after rear conglomeration
Face, the high density stream that the two is constituted follows the male cone (strobilus masculinus) of ring well and deflection cone male cone (strobilus masculinus) is dropped down and fallen, to be formed by sand warehouse body
The flocculation region that wall, feedwell outer wall, the circulation downhole conical surface and deflection cone male cone (strobilus masculinus) are constituted, and low-density clarified solution then passes through and follows
The inner cone of ring well rises, and constitutes the Dynamic Flow Field of different densities stream in this way, accelerates the rate of settling of tailing.
Further, the stirring fluidizer includes rotary power unit and agitating shaft, one end of the agitating shaft and institute
The output shaft for stating rotary power unit is fixedly connected, and the agitating shaft is threaded through in the discharge port and the side with the discharge port
Wall rotation connection.
Beneficial effect using above-mentioned further scheme is: using mechanical fluidisation blowing mode, can not reduce tailings
Concentration and under the premise of not influencing dense effect, the stirring blade by rotation drive device driving is the area compacted density great Fang Sha
Disturbance fluidisation is implemented in domain, make its compacted density reduce to achieve the effect that put sand it is unobstructed.
Specifically, the rotary power unit can be rotating electric machine, or other rotary power units.
Further, the stirring blade of rectangle is fixedly connected on the agitating shaft.
Beneficial effect using above-mentioned further scheme is: stirring fluid effect is good.
It further, further include supporting leg, the supporting leg is fixedly connected with the outer wall of the sand warehouse body.
Beneficial effect using above-mentioned further scheme is: fixing convenient for the installation of sand warehouse body.
Detailed description of the invention
Fig. 1 is the cross-sectional view that a kind of depth for putting sand device with fluidisation of the present invention bores dense sand warehouse；
Fig. 2 is the feed pipe partial enlarged view that a kind of depth for putting sand device with fluidisation of the present invention bores dense sand warehouse；
Fig. 3 is the stirring fluidizer enlarged drawing that a kind of depth for putting sand device with fluidisation of the present invention bores dense sand warehouse；
Fig. 4 is the feed pipe top view that a kind of depth for putting sand device with fluidisation of the present invention bores dense sand warehouse；
Fig. 5 is the flocculant inlet tube top view that a kind of depth for putting sand device with fluidisation of the present invention bores dense sand warehouse.
In attached drawing, parts list represented by the reference numerals are as follows:
1, sand warehouse body, 2, feed pipe, 3, overflow launder, 4, feedwell, 5, circulation well, 6, annular deflection cone, 7, stirring fluidisation
Device, 701, agitating shaft, 702, rotary power unit, 8, discharge nozzle, 9, supernatant return pipe, 10, flocculant inlet tube are A, clear
Clear area, B, transition region, C, decanting zone, D, compressional zone.
Specific embodiment
The principles and features of the present invention are described below, and the given examples are served only to explain the present invention, is not intended to limit
Determine the scope of the present invention.
As Figure 1-Figure 5, a kind of depth for putting sand device with fluidisation bores dense sand warehouse, including sand warehouse body 1, feed pipe 2,
Overflow launder 3, feedwell 4, circulation well 5, annular deflection cone 6, stirring fluidizer 7 and flocculant inlet tube 10；The overflow launder 3
It is fixedly connected at the top of the inner wall of the sand warehouse body 1, the overflow launder 3 is connected with supernatant return pipe 9；The feedwell 4
It is set at the top center of the cavity of the sand warehouse body 1 and is fixedly connected with the sand warehouse body 1；The circulation well 5 is set in
It is fixedly connected, the feedwell 4 and described is followed by steel structure support in the feedwell 4 and with the top of the feedwell 4
Feed zone is formed between ring well 5；The feed pipe 2 is connected with the feed zone；The flocculant feed liquor endless tube passes through steel knot
Structure bracket is set between the circulation well 5 and the feedwell 4；The annular deflection cone 6 is being set to the circulation well 5 just
Lower section is simultaneously fixedly connected with the inner wall of the sand warehouse body 1, and the diameter at the top of the annular deflection cone 6 is straight with the circulation well 5
Diameter is identical；The bottom of the sand warehouse body 1 has discharge port, and the stirring fluidizer 7 is fixedly connected with the discharge port.
Specifically, discharge port is connected to discharge nozzle 8, discharge nozzle 8 has shutoff valve, and shutoff valve is for being connected to or closing
Discharge nozzle 8.
As the further scheme of the present embodiment, the top of the sand warehouse body 1 is the open cylinder barrel shaped in top, and lower part is
The downward taper barrel of the vertex of a cone, the cone angle of the taper barrel are less than the angle of repose of tailing.
As the further scheme of the present embodiment, as shown in Fig. 1-2 and Fig. 4, the feed pipe 2 and the feedwell into
Material area is tangentially connected to.One end be the circulating line for being set in 5 outside of the circulation well, the circulating line have it is downward into
Material mouth.
As the further scheme of the present embodiment, as shown in Fig. 1-2 and Fig. 5, the flocculant inlet tube 10 with it is described into
Expect area's connection.The flocculant inlet tube 10 is the circulating line for being set in 5 outside of circulation well, and the circulating line has
Downward discharge port.
As the further scheme of the present embodiment, the upper edge of the feedwell 4 is higher than the overflow launder 3, the feed
The upper edge of well 4 is higher than the upper edge of the circulation well 5.
As the further scheme of the present embodiment, the annular deflection cone 6 is the positive cone cylinder and back taper that top is fixedly connected
Cylinder, the annular deflection cone 6 have inner conical surface and male cone (strobilus masculinus), and the angle of the inner conical surface and the male cone (strobilus masculinus) is 60 °.
As the further scheme of the present embodiment, the top of the circulation well 5 is cylindrical shape, and lower part is positive cone cylinder, described
Columnar lower edge is fixedly connected with the upper edge of the positive cone cylinder, and the lower end of the circulation well 5 has the water conservancy diversion conical surface, described
The diameter of water conservancy diversion conical surface lower end is equal with the diameter at annular 6 top of deflection cone.
As the further scheme of the present embodiment, the agitating device 7 includes rotary power unit 702 and agitating shaft 701,
One end of the agitating shaft 701 is fixedly connected with the output shaft of the rotary power unit 702, and the agitating shaft 701 is threaded through
It is rotatablely connected in the discharge port and with the side wall of the discharge port.
The rotary power unit 702 is rotary electric machine or hydraulic motor.
As the further scheme of the present embodiment, as shown in figure 3, being fixedly connected with stirring for rectangle on the agitating shaft 701
Mix blade.
It further include supporting leg as the further scheme of the present embodiment, the outer wall of the supporting leg and the sand warehouse body 1 is fixed to be connected
It connects.
Low concentration tailing and flocculant feed pipe 2 and flocculant feed liquor endless tube 10 through the present embodiment respectively enter feedwell
4, self-assembling formation settling section A, transition region B (or hindered settling area), decanting zone C and pressure from top to bottom are being bored in dense sand warehouse deeply
Contracting area D.
Settling section A is the microparticle suspension aggregation zone for not being flocculated sedimentation and escaping, and mass concentration is essentially identical to
Clear water；Transition region B (or hindered settling area) is coarse granule tailing rapid subsidence, the main region of subparticle flocculation conglomeration；
In the C of decanting zone, subparticle is basically completed flocculation conglomeration and coarse granule tailing generates vertical sedimentation jointly；In compressional zone D,
Mutual superimposed one solid particle of formation of fine fraction tailing for the coarse fraction tailing and flocculation conglomeration sedimentation that natural gravity settles
Compression layer, in this region, sinking speed becomes very small, contacts with each other, supports and squeezes between solid particle.Upper layer is solid
Body particle generates compression to lower layer's solid, and the water in lower layer's solid particle gap is caused to be extruded rising, solid from top to bottom
Body contact stress is gradually increased, and solid concentration also progressivelyes reach maximum.
Flocculating setting theory shows that flocculation conglomeration needs to create the chance mutually collided and combined for colloidal solid, steady
When state settles, the flocculation of tailing mainly by be particle Brownian movement；And in continuous dynamic settling, external force pushes away particle
It is to accelerate particle movement with conglomeration growth so that the essential condition of sedimentation that movement, which is used then,.
The present invention designs constituted depth by special structure and bores dense sand warehouse, makes the low concentration tail into feedwell 4
Mine and flocculant generate the flow field for the conglomeration that is conducive to flocculate, current difference caused by the concentration difference by the flow field in the sand warehouse
The vortex of generation is interfered, and causes to play particle pushing and the environment of acceleration, promote the combination of subparticle and flocculant with
And the flocculation reunion between microparticle is grown up.
Low concentration tailing by feed pipe 2 be sent into feedwell 4 after, coarse fraction tailing between feedwell 4 and circulation well 5 or
It realizes that gravity sinks along side wall under the action of the centrifugal force along feedwell 4, or realizes that gravity sinks by self gravity.What is sunk is thick
Grade tailing falls on the outer surface in 5 lower part deflection cone face of circulation well, forms the stream of better quality concentration and flow velocity.The stream exists
The annular deflection cone 6 for being further located at 5 lower part of circulation well during sinking shunts, and distributes in inside and outside annular deflection cone 6
The better quality concentration of the conical surface and the stream of flow velocity.
Correspondingly, in the outer surface far from 5 lower part deflection cone face of circulation well and far from the outer of 6 male cone (strobilus masculinus) of annular deflection cone
In the decanting zone of side, then because the mass concentration of tailing and flow velocity are lower, current difference is generated, and then generate vortex flow field.And this whirlpool
Eddy flow field then accelerates the movement rate of subparticle tailing, makes to generate interference in infall process between particle and particle, play
The effect for promoting the reunion between subparticle and the combination and microparticle of flocculant to grow up.Meanwhile solid in the decanting zone
Concentration is lower, solid particle rapid decrease, generates interference in infall process between particle and particle, also functions to and promotes microparticle group
It is poly- to grow up and then the effect of accelerated sedimentation.
In annular 6 lower part of deflection cone to the deep compressional zone D for boring dense sand warehouse bottom, the coarse fraction tailing of natural gravity sedimentation
Mutually the superimposed compression layer for forming a solid particle settles in this region with the fine fraction tailing of flocculation conglomeration sedimentation
Speed becomes very small, contacts with each other, supports and squeezes between solid particle.Upper layer solid particle generates compression to lower layer's solid
Effect, causes the water in lower layer's solid particle gap to be extruded rising, solid contact stress is gradually increased from top to bottom, solid concentration
Also maximum is progressivelyed reach.
It is extruded the low concentration suspension of rising in compressional zone D, and annular 6 lower part of deflection cone and central part is low dense
Spend suspension caused by concentration difference current difference effect under, into 5 lower part of circulation well horn mouth and rise on circulation well 5
The outside overflow in end is to feedwell 4.The suspension of the low concentration is fed, and is further diluted by feedwell 4 and is fed material,
Enable tailing to be diluted to flocculant and play the concentration of best agglomerating effect, to increase the reunion and sinking speed of tailing.
The size of concentration difference and the height of feedstock concentrations are positively related inside and outside circulation well 5: with the increase of feedstock concentrations,
Concentration difference is consequently increased inside and outside circulation well 5, is also increased automatically so that upward low concentration be made to recycle tailing amount, diluting effect
It is automatic to increase.
Delivery rate is also positively related with the rate of settling: during continuous concentration, increasing delivery rate, can accelerate thick
The sedimentation of grade tailing, being formed by flow field velocity difference can be bigger, and then increases sinking speed.
The deep material concentration for boring dense sand warehouse discharge port discharge additionally depends on the height of sand warehouse body 1.Most preferred embodiment shows
The Tailings Slurry working condition requirement for being lower than 55% for producing concentration, the distance of 1 upper port of sand warehouse body to lower part cone portlet must not
Less than 8 meters；The Tailings Slurry working condition requirement for being higher than 55% for producing concentration, 1 upper port of sand warehouse body to lower part cone portlet
Distance cannot be less than 12 meters.
The deep treating capacity for boring dense sand warehouse is also positively correlated with the diameter of sand warehouse body 1；Larger-diameter sand warehouse will increase ore pulp
Treating capacity.
In order to prevent orlop portion because compacted density it is big caused by bridge formation knot arch, and then influence discharge phenomenon, sand of the present invention
The lower part cone cone angle of warehouse 1 should be less than test angle of repose when handled Tailings Slurry maximum concentration.
When bottom discharging wouldn't be carried out and to obtain the underflow of higher concentration by boring dense sand warehouse deeply, the high concentration of bottom
Material easily blocks.The deep dense sand warehouse of cone of the present invention is also provided in bottom by blade-carrying agitating shaft and rotary power
The stirring fluidizer 7 that device is constituted.Mechanical stirring fluidisation is implemented to the tailings for putting sand oral area by the device, makes the tail of compacting
Sand is able to flow and unobstructed discharge.
The present invention is boring dense sand warehouse flow field change due to designing using above-mentioned special structure, by changing stream deeply,
Accelerate the flocculation reunion speed of subparticle tailing；Meanwhile sand technology is put by using mechanical stirring fluidisation, sand is put with existing
Technology is compared with following many superiority: the gentle power consumption of no waterpower, fluid effect is good, guarantees pulp consistency do not reduce with
And dense effect will not be reduced.
The present invention also have small in size, structure is simple, manufacturing cost is low, thickening efficiency is high, underflow density is big, it is non-maintaining and
The distinguishing features such as low dynamics consumption, have wide applicability.
In the description of the present invention, it should be noted that term " on ", "lower", "front", "rear", "left", "right", "inner",
The orientation or positional relationship of the instructions such as "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing this hair
Bright and simplified description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation
Construction and operation, therefore be not considered as limiting the invention.In addition, term " first ", " second " are used for description purposes only,
It is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.In addition, in the description of the present invention, unless otherwise indicated, the meaning of " plurality " is two or two
More than.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of depth for putting sand device with fluidisation bores dense sand warehouse, which is characterized in that including sand warehouse body (1), feed pipe (2),
Overflow launder (3), feedwell (4), circulation well (5), annular deflection cone (6), stirring fluidizer (7) and flocculant inlet tube
(10)；
It is fixedly connected at the top of the overflow launder (3) and the inner wall of the sand warehouse body (1)；
The feedwell (4), which is arranged at the top center of the cavity of the sand warehouse body (1) and fixes with the sand warehouse body (1), to be connected
It connects；
Circulation well (5) setting is fixedly connected in the feedwell (4) and at the top of the feedwell (4), described to give
Feed zone is formed between material well (4) and the circulation well (5)；
The feed pipe (2) and the flocculant inlet tube (10) are connected with the feed zone；
The annular deflection cone (6), which is set to the underface of the circulation well (5) and fixes with the inner wall of the sand warehouse body (1), to be connected
It connects, the diameter at the top of the annular deflection cone (6) is identical as the diameter of the circulation well (5)；
The bottom of the sand warehouse body (1) has discharge port, and the stirring fluidizer (7) is fixedly connected with the discharge port.
2. a kind of depth for putting sand device with fluidisation bores dense sand warehouse according to claim 1, which is characterized in that the sand warehouse
The top of body (1) is the open cylinder barrel shaped in top, and lower part is the downward taper barrel of the vertex of a cone, and the cone angle of the taper barrel is small
In the angle of repose of tailing.
3. a kind of depth for putting sand device with fluidisation bores dense sand warehouse according to claim 1, which is characterized in that the charging
Pipe (2) is connected along the tangential direction of the feedwell (4) with the feedwell (4), and is connected with the feed zone.
4. a kind of depth for putting sand device with fluidisation bores dense sand warehouse according to claim 1, which is characterized in that the flocculation
Agent inlet tube (10) is the circulating line being set on the outside of the circulation well (5), has what Open Side Down on the circulating line
Discharge port, the discharge port are connected with the feed zone.
5. a kind of depth for putting sand device with fluidisation bores dense sand warehouse according to claim 1, which is characterized in that the feed
The upper edge of well (4) is higher than the overflow launder (3), and the upper edge of the feedwell (4) is higher than the top of the circulation well (5)
Edge.
6. a kind of depth for putting sand device with fluidisation bores dense sand warehouse according to claim 1, which is characterized in that the annular
Deflection cone (6) is the positive cone cylinder and inversed conical drum that top is fixedly connected, and the annular deflection cone (6) has inner conical surface and male cone (strobilus masculinus),
The angle of the inner conical surface and the male cone (strobilus masculinus) is 60 °.
7. a kind of depth for putting sand device with fluidisation bores dense sand warehouse according to claim 1, which is characterized in that the circulation
The top of well (5) is cylindrical shape, and lower part is positive cone cylinder, and the upper edge of the columnar lower edge and the positive cone cylinder is fixed to be connected
It connects, the lower end of the circulation well (5) has the water conservancy diversion conical surface, the diameter of water conservancy diversion conical surface lower end and the annular deflection cone (6)
The diameter at top is equal.
8. a kind of depth for putting sand device with fluidisation bores dense sand warehouse according to claim 1, which is characterized in that the stirring
Fluidizer (7) includes rotary power unit (702) and agitating shaft (701), one end and the rotation of the agitating shaft (701)
The output shaft of power device (702) is fixedly connected, the agitating shaft (701) be threaded through in the discharge port and with the discharge port
Side wall rotation connection.
9. a kind of depth for putting sand device with fluidisation bores dense sand warehouse according to claim 8, which is characterized in that the stirring
The stirring blade of rectangle is fixedly connected on axis (701).
10. a kind of any one of -9 dense sand warehouse of depth cone for putting sand device with fluidisation, feature exist according to claim 1
In further including supporting leg, the supporting leg is fixedly connected with the outer wall of the sand warehouse body (1).
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| CN201910435486.4A CN110152358A (en) | 2019-05-23 | 2019-05-23 | A kind of dense sand warehouse of depth cone for putting sand device with fluidisation |
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| CN110860132A (en) * | 2019-12-11 | 2020-03-06 | 佛山市高明区高级技工学校 | Sewage treatment system |
| CN111214855A (en) * | 2019-12-06 | 2020-06-02 | 骆军辉 | Disc thickener |
| CN113908594A (en) * | 2021-10-12 | 2022-01-11 | 怀化辰州机械有限责任公司 | Tailing slurry precipitation separation and reconstruction method |
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Effective date of registration: 20191009 Address after: 100070 Beijing Fengtai District Yuren South Road 3 Courtyard 3 Building 301-8 Applicant after: Jincheng Mine Engineering Design Institute Co., Ltd. Address before: 100070 Beijing Fengtai District Yuren South Road 3 Courtyard 3 Building 301-8 Applicant before: Jincheng Mine Engineering Design Institute Co., Ltd. Applicant before: Beijing integrity Mining Technology Research Institute Co., Ltd. Applicant before: JCHX Mining Management Co.,Ltd. |