CN201711003U - Tiny material flocculating and settling device - Google Patents
Tiny material flocculating and settling device Download PDFInfo
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- CN201711003U CN201711003U CN2010201715649U CN201020171564U CN201711003U CN 201711003 U CN201711003 U CN 201711003U CN 2010201715649 U CN2010201715649 U CN 2010201715649U CN 201020171564 U CN201020171564 U CN 201020171564U CN 201711003 U CN201711003 U CN 201711003U
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- 239000000463 material Substances 0.000 title claims abstract description 16
- 230000003311 flocculating effect Effects 0.000 title abstract description 3
- 230000002093 peripheral effect Effects 0.000 claims abstract description 21
- 239000003814 drug Substances 0.000 claims abstract description 15
- 238000003860 storage Methods 0.000 claims abstract description 12
- 239000007788 liquid Substances 0.000 claims abstract description 11
- 238000004062 sedimentation Methods 0.000 claims description 39
- 230000006641 stabilisation Effects 0.000 claims description 28
- 238000011105 stabilization Methods 0.000 claims description 28
- 238000005189 flocculation Methods 0.000 claims description 18
- 230000016615 flocculation Effects 0.000 claims description 18
- 229940079593 drug Drugs 0.000 claims description 10
- 230000008719 thickening Effects 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 12
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000000926 separation method Methods 0.000 abstract description 5
- 239000002562 thickening agent Substances 0.000 abstract 2
- 239000008394 flocculating agent Substances 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000010802 sludge Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
- 239000012141 concentrate Substances 0.000 description 7
- 230000002950 deficient Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 235000011888 snacks Nutrition 0.000 description 3
- 235000014347 soups Nutrition 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229940126680 traditional chinese medicines Drugs 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000003513 alkali Substances 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000008235 industrial water Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000008247 solid mixture Substances 0.000 description 1
Images
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Treatment Of Sludge (AREA)
Abstract
The utility model provides a tiny material flocculating and settling device. An annular medicine storage tank rotating with a bridge rack is arranged on the bridge rack of a peripheral transmission thickener; the medicine storage tank is positioned in the middle of a central feeding cylinder and above a steady flow barrel; and eight medicine lead-out holes are formed on the steady flow barrel, wherein four medicine lead-out holes are formed in the steady flow barrel and the other four medicine lead-out holes are formed at the periphery of the steady flow barrel. A discharge port of the central feeding cylinder submerges into the liquid level; four pipes curved by 90 degrees as rotational flow outlet pipes are uniformly distributed at the periphery of the central feeding cylinder, the outlet cross sections of the curved pipes are greater than or equal to the cross section of the central feeding cylinder; and the outlet is arranged in the tangential direction. Under the condition that the treatment capacity is increased by 33 percent than before, the concentrated underflow density is improved from 24 percent to 32.3 percent; the unit consumption of flocculating agent is reduced from 55 gram/ton to 44 gram/ton; and the utilization ratio of the concentrated return water is also improved from 49 percent to 71 percent. The utility model is applicable to the tiny particle material settling separation treated by the peripheral transmission thickener.
Description
Technical field
The utility model relates to flocculation, the sedimentation device of a kind of superfine material (as mill tailings), is particularly suitable for utilizing flocculation, the sedimentation operation of the subparticle material that peripheral driving type concentrator carries out.
Background technology
Concentrator is a kind of equipment that the homogeneous phase liquid-solid mixture is carried out gravity settling separation.Use very extensively in industrial production, the concentrator in ore dressing plant for example is with concentrate or mine tailing deposition and separate with clear water; The salt slurry sedimentation separation of refined salt or chlor-alkali plant; And sewage treatment plant, water purification plant, Wet-process Phosphoric Acid Production this equipment of extensive use all.
For the sedimentation separation of the material of fine size, light specific gravity, generally adopt concentrator to carry out sedimentation, concentrate, add flocculation, sedimentation that flocculant quickens subparticle simultaneously, to obtain desired underflow and overflow.Present applicable concentrator has two kinds of peripheral driving type, center driving types.Periphery driving type concentrator general requirements is big, disposal ability is big, and it utilizes peripheral tooth bar, transmission system to drive concentrator rake frame, and the slip of sedimentation is concentrated toward center discharge cone mouth.Center driving type concentrator general requirements is little, disposal ability is little, and it utilizes central transmission to drive concentrator rake frame, and the slip of sedimentation is concentrated toward center discharge cone mouth equally.
Need carry out sedimentation, concentrated material, if concentration is lower, fine grained is mutual collision and disturb and can ignore during sedimentation in liquid phase, and the sedimentation of this moment is called free settling; If material concentration is higher, fine grained interferes with each other during sedimentation in liquid phase, because the mechanical resistance that collision, friction produce is bigger, sedimentation at this moment is called hindered settling each other.As seen outside the resistance that dewaters, also has the mechanical resistance that fine grained is mutual, so the end speed of hindered settling is littler than the end speed of free settling.Here it is, and why the SEDIMENTATION FOR FINE PARTICLE in the rarer slip of concentration is fast, the slow reason of SEDIMENTATION FOR FINE PARTICLE in the dense thick slip.
For this reason, part center driving type concentrator adopts the mode of diluting the charging slip further to accelerate the sedimentation of material on the basis of adding flocculant.And peripheral driving type concentrator exposes liquid level because of the rake frame and the tooth bar around the thickening pond moves in a circle, and is difficult to utilize the primary water in the thickening pond to dilute the charging slip, this to accelerate fine grain sedimentation bring unfavorable.
2 60 meters peripheral driving type concentrators that this enterprise put into operation in November, 2008,254 tons/hour of specified disposal abilities. platform, design input concentration 8.69%, underflow density 〉=30.0% is used to handle that-200 orders account for more than 85%, the washup mine tailing (sludge slime water) of proportion 2.74, plasticity index about 25.The feed of this concentrator by the well that falls into water, open channel, DN500 seamless pipe,
Central tube feeds, the flocculant soup adds in the DN500 seamless pipe simultaneously, enter in the current stabilization bucket with slip, after flocculation takes place, the sedimentation immediately of sludge floc sedimentation, and under the effect of rake machine scraper, assemble toward the discharge cone mouth, form the underflow of final discharging, and that the washup operation is returned in the concentrator overflow is recycling.
At the initial stage of 60 meters concentrator actual motions, too high because of input concentration, reach about 17%, flocculation, the effect of settling of sludge are very poor, only 150 tons/hour of disposal abilities. and during the platform left and right sides, underflow density has only 22～24%, the backwater rate is low, and muddy phenomenon often occurs running.Although through some improvement, input concentration has been dropped to about 15%, flocculation, the sedimentation of sludge had some improvement, underflow density promotes limited, and only about 25%, the backwater rate is still lower, is difficult to satisfy the demand of washup industrial water.After having improved washup flushing water system, be reduced to about 12% under the feed concentration of 60 meters concentrators is further, but because of the feed flow increases severely, flow velocity is very fast, flocculation, the sedimentation environment is poor, final flocculation, the effect of settling of sludge are still very poor, and underflow density has only about 24%, cause underflow density still can't effectively be promoted.
Observe and find, there are bigger defective in the charging of above-mentioned 60 meters concentrators, administering mode.Enter by feed pipe, central tube in the process of concentrator current stabilization bucket from open channel as the washup slime water, fast because of flow velocity, drop is big, make the slip that enters the current stabilization bucket produce comparatively violent rolling, be unfavorable for the formation and the sedimentation of sludge floc sedimentation.In addition, flocculant adds at the feed pipe place at about 70 meters of distance central tube, after soup enters feed pipe, flow with slip, after the mixing fully, even flocculant plays a role and forms the sludge floc sedimentation, but distance, flow velocity are fast owing to flow, the conditioned disjunction environment that is fit to the floc sedimentation sedimentation without comparison, slip most sludge floc sedimentations after central tube enters the current stabilization bucket can brokenly loose, thereby have influence on final effective flocculation.After slip entered the current stabilization bucket, through buffering, even occur to be fit to the conditioned disjunction environment of floc sedimentation sedimentation, but the effect of the 2nd performance of flocculant flocculation obviously weakened, and caused finally that the sludge sinking speed is slow, underflow density is low.
The utility model content
The purpose of this utility model is flocculation, the sedimentation device that works out a kind of superfine material, can effectively improve concentrated underflow density, concentrate the recycling water utilization rate, obviously improves flocculation, the effect of settling of sludge.
The utility model is at the defective of the administering mode existence of above-mentioned 60 meters concentrators, through test of many times, after repeatedly point and addition manner are added in conversion, finally effective flocculant doser of peripheral transmission concentrator and method have been found, and widened original inlet opening, current stabilization bucket top, see Fig. 1.
Utilize this doser can realize that the multiple spot of flocculant adds, best flocculation point is provided, eliminate the defective that too early administration brings the flocculating effect difference.Simultaneously, under normal circumstances, because material level is lower than thickening pond liquid level in the current stabilization bucket, so the primary water of thickening pond and add peripheral flocculant to and will flow in the current stabilization bucket from the oval inlet opening of widening, slip is played certain diluting effect; Flocculant in adding the current stabilization bucket to is with after slip mixes, buffering through the buffer board of setting in the current stabilization bucket can comparatively fast form floc sedimentation, then sedimentation under comparatively tranquil and interference-free environment, thereby obtain sinking speed faster, correspondingly improve concentrated underflow density.
At the defective that the feeding manner of 60 meters concentrators exists, need to eliminate slip because of high drop enters the kinetic energy that acutely rolls that the current stabilization bucket is produced, suitable flocculation, setting condition or environment is provided.Through test of many times, discovery is extended 1000mm downwards with the central feeding tube, slip imports below the liquid level, and shutoff central tube bottom is provided with 4 curved shape discharging openings in its underpart, make charging finally feed the current stabilization bucket with tangential direction, and with certain speed formation rotary fluid, under action of centrifugal force, coarse granule and established sludge floc sedimentation can quicken, corresponding quickening sinking speed effectively promotes and concentrates underflow density.See Fig. 2.
Technical solution adopted in the utility model is:
An annular drug storage tank that can rotate with crane span structure is installed on the crane span structure of peripheral driving type concentrator, and this drug storage tank is positioned at the top that barrel middle part, current stabilization bucket are given in the center, establishes 8 administration fairleads, and in the current stabilization bucket 4, peripheral 4 of current stabilization bucket; The center sinks to the thickening pond liquid level for the barrel discharging opening, and 4 90 ° of bend pipes are given on the barrel circumference as the eddy flow outlet center that is evenly distributed on, and the outlet tangential direction is arranged.
The barrel cross section is given more than or equal to the center in the outlet of eddy flow outlet.
Good effect of the present utility model:
After foregoing invention comes into operation, owing to obviously improved flocculation, the effect of settling of sludge, under the situation of disposal ability than original increase by 33%, concentrate underflow density and be increased to 32.3% by 24%, the flocculant unit consumption is reduced to 44 gram/tons by 55 gram/tons, also is increased to 71% by 49% and concentrate the recycling water utilization rate.
The utility model can be applicable to utilize peripheral driving type concentrator to handle the sedimentation separation operation of subparticle material, thereby improves concentrated effect, accelerates dewatering efficiency.According to statistics, domestic only 50～60 meters peripheral driving type concentrator just has more than 1000, wherein great majority be used for the subparticle material sedimentation, concentrate.Therefore the utility model has bigger promotional value in the mine ore dressing factory that uses peripheral driving type concentrator.
Description of drawings
Fig. 1 is a flocculant delivery tube distribution schematic diagram.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is central tube charging and discharging opening distribution schematic diagram.
Fig. 4 is the B-B view of Fig. 3.
Among the figure: 1, barrel 6, thickening pond liquid level 7, eddy flow outlet are given in chemical feed pipe 2, current stabilization bucket 3, annular drug storage tank 4, collector ring rain cover 5, center.
The specific embodiment
An annular drug storage tank 3 is installed on the crane span structure of peripheral driving type concentrator, and this drug storage tank is positioned at the top that barrel 5 middle parts, current stabilization bucket 2 are given in the center, and drug storage tank can rotate with crane span structure; Draw 8 chemical feed pipes 1 from drug storage tank, inside and outside each 4 of current stabilization bucket is provided with the control corresponding valve on the chemical feed pipe 1; By these delivery tubes and valve, it is inner and peripheral that the flocculant soup can add the current stabilization bucket on request to.Divide into collector ring rain cover 4 at annular drug storage tank.
Flocculant distributes and the dose control mode to snack made with traditional Chinese medicines: give snack made with traditional Chinese medicines for 4 in the current stabilization bucket, account for 60～70% of total dose; Peripheral 4 of current stabilization bucket is given snack made with traditional Chinese medicines, accounts for 30～40% of total dose.
Concentrator current stabilization bucket top water feed apparatus: with the thickening pond liquid level is center line, and the top of current stabilization bucket is evenly offered 4 on the top of current stabilization bucket
Oval inlet opening, to increase inflow.
The central feeding Unit Installation mode of periphery driving type concentrator: prolong original center and give barrel 5, discharging opening sinks to thickening pond liquid level 6.Down extend to the thickening pond liquid level below 6 for barrel 5 at the center of 60 meters peripheral transmission concentrator routines; stretch into the length 900～1000mm of liquid level; the bottom shutoff; at 200mm place, distance bottom 4 outlets are set; utilize 4 90 ° of bend pipes as eddy flow outlet 7; the outlet of 4 bend pipes must be more than or equal to charging central tube cross section; evenly distribute along the central tube circumference; outlet is tangential angle; the guiding slip enters the current stabilization bucket from 4 outlets with tangential way; and form certain rotary fluid; make the coarse granule or the agglomerating sludge that flocculated under action of centrifugal force, quicken, thereby improve sinking speed, improve sedimentation; concentrated effect.
Claims (2)
1. the flocculation of a superfine material, sedimentation device comprise peripheral driving type concentrator, it is characterized in that:
An annular drug storage tank (3) that can rotate with crane span structure is installed on the crane span structure of peripheral driving type concentrator, this drug storage tank (3) is positioned at the top that barrel (5) middle part, current stabilization bucket (2) are given in the center, if 8 administration fairleads, interior 4 of current stabilization bucket, peripheral 4 of current stabilization bucket; The center sinks to thickening pond liquid level (6) for barrel (5) discharging opening, and 4 90 ° of bend pipes are given on barrel (5) circumference as eddy flow outlet (7) center that is evenly distributed on, and the outlet tangential direction is arranged.
2. the flocculation of a kind of superfine material according to claim 1, sedimentation device is characterized in that: the barrel cross section is given more than or equal to the center in the outlet of eddy flow outlet (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201715649U CN201711003U (en) | 2010-04-27 | 2010-04-27 | Tiny material flocculating and settling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201715649U CN201711003U (en) | 2010-04-27 | 2010-04-27 | Tiny material flocculating and settling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201711003U true CN201711003U (en) | 2011-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201715649U Expired - Fee Related CN201711003U (en) | 2010-04-27 | 2010-04-27 | Tiny material flocculating and settling device |
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| Country | Link |
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| CN (1) | CN201711003U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462488A (en) * | 2017-08-29 | 2017-12-12 | 上海市基础工程集团有限公司 | Floccule body state estimating apparatus |
-
2010
- 2010-04-27 CN CN2010201715649U patent/CN201711003U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107462488A (en) * | 2017-08-29 | 2017-12-12 | 上海市基础工程集团有限公司 | Floccule body state estimating apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20160427 |