CN1003213B - High efficiency washing tower with low bed layer for slurry and its application - Google Patents
High efficiency washing tower with low bed layer for slurry and its application Download PDFInfo
- Publication number
- CN1003213B CN1003213B CN87103513A CN87103513A CN1003213B CN 1003213 B CN1003213 B CN 1003213B CN 87103513 A CN87103513 A CN 87103513A CN 87103513 A CN87103513 A CN 87103513A CN 1003213 B CN1003213 B CN 1003213B
- Authority
- CN
- China
- Prior art keywords
- pipe
- tower
- slip
- flocculator
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Images
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The present invention relates to a high-efficiency washing tower for slurry, which is characterized in that a short tower with a low bed layer is used, the total height of the tower is from 2.5 to 5 m, and the height of a concentrated phase section is from 0.5 to 1.5 m; a self-circulating flocculator is arranged in an expanding section, a self-stopping water spray pipe is used for feeding water in a pulse mode, and meanwhile, secondary flocculation is adopted. Therefore, the present invention has the advantages of uniform water distribution, good flocculation effect, stable bed layer, high washing efficiency and easy operation. The present invention can be used for separating and washing solid and liquid in leached slurry and also washing fine materials.
Description
The invention belongs to the general physical method and apparatus, as the fluidization wash tower, it can be used for Separation of Solid and Liquid and material washing, can wash out leaching the solable matter of carrying secretly in ore pulp or other insoluble solid fines surface and the space.
Ore pulp after the leaching contains the metal ion of required extraction and is used to extract the reagent of metal.In order to reclaim metal ion and reagent, need these metal ions and reagent are come out from ore pulp; Also have some superfine materials, need flush away impurity wherein.Washing facility commonly used has concentrator, drum type vacuum filter, band filter, leaf-type vacuum filter, plate and frame filter press, centrifuge etc.These equipment, the complex structure that has, the energy consumption height that has, the anticorrosion difficulty that has, the floor space that has is big.For breaking away from these disadvantages, " fluidization leaching and washing " (Guo Musun work) of Science Press's publication in 1979 summarized use fluidization wash Apparatus and operation method.The fluidization wash tower mainly comprises slip guide shell, downflow weir, overflow pipe, expanding reach, water-distributing device, conical bottom, underflow blow-off valve and includes the tower main body of dilute phase section, concentrated phase section, compression section.During operation, the slip after flocculation is added by expanding reach top slip guide shell by certain flow, and washing agent is added by water-distributing device, and eluate is flowed out by overflow pipe by downflow weir, and the material after cleaning is discharged by the underflow blow-off valve.In order to improve detersive efficiency, attempt obtains clear liquid, and often the way with the lengthening body of the tower solves.Tower height is generally wanted 12-18 rice.This just gives design, material selection, construction, corollary equipment is selected for use and operation has brought certain difficulty.And because the own wt of high bed slip floc sedimentation can easily produce fluidisation to the crushing of the floc sedimentation of bottom, and, easily produce channel, bias current or local dead bed phenomenon because water distribution is irregular, influence detersive efficiency.
Modes such as above flow pattern of slip or following flow pattern add in the mozzle of expanding reach, are the sedimentation of accelerating solid particle, need to add an amount of flocculant in advancing slurry.Flocculation charging like this, smaller because of liquid-solid ratio, flocculating effect is poor, and flocculant can not get sufficient utilization, also has to sometimes slip is diluted in advance, and tower then flocculates.
Washing agent advances the tower washing by modes such as water hat type water distribution comb or side opening scraper type water distribution combs after the high pressure drop throttling, the common issue with of its existence is that part water inlet eyelet is stopped up by slip easily, causes water distribution irregular, and this just is difficult to reach the clean result of expection.
Task of the present invention is that the low bed layer high-efficient washing that a kind of water distribution is even, flocculating effect is good tower will be provided, and guarantees the using method that bed is stable, detersive efficiency is high.
The main points of implementing task of the present invention are: adopt low bed layer to reduce owing to the crush possibility of floc sedimentation of the own wt of floc sedimentation; Adopt the secondary flocculation technique so that the crushed floc sedimentation of part flocculates again; At expanding reach the self-circulation type flocculator is installed, is made dense slip directly advance the tower flocculation, this both can control flock size and intensity, can save flocculant again; Use is from the inverse-stopping type sparge pipe, makes the water-distributing device can be not blocked, guarantees that water distribution is even; What be complementary with water-distributing device is with pulse mode water inlet, makes each inlet pressure unanimity, under enough jet powers, impels concentrated phase section bed clocklike to wriggle, to prevent to produce channel, bias current.
Below in conjunction with accompanying drawing the present invention is elaborated.
The flocculating property and the settling property of solvent or diluent slurry are better than dense slip, because floc sedimentation is difficult for carrying secretly " raw slurry " that is not flocculated during the flocculation of solvent or diluent slurry, the inside and outside homogeneity of floc sedimentation is good, and can obtain the floc sedimentation that is easy to wash under the less situation of flocculant consumption.Self-loopa flocculator [3] is installed in the expanding reach [4], and upper edge and cat head are flat.After slip enters flocculator, under agitation diluted, and contact with flocculant by upper clear supernate, sink after forming floc sedimentation, the part clear liquid is stayed in the flocculator and is recycled, and participate in again newly advancing the dilution of tower slip, thereby residual flocculant is fully used in the solution.
Fig. 3 is the water-distributing device schematic diagram, and 61 is schematic diagrames of arranging from the inverse-stopping type sparge pipe among the figure, the 62nd, and from check sparge pipe structural representation, [62-1] is interior pipe, and [62-2] is elastic outer pipe, and [62-3] is side opening.In the end sealing of pipe [62-1], other end opening also is connected with water inlet pipe.Open 1 to 10 side opening [62-3] on the interior pipe [62-1], preferably 2 to 4 side openings.In the material of pipe [62-1] can be plastics or stainless steel, preferential being vinyon and containing the Mo stainless steel of selecting.Topped live [62-3] of elastic outer pipe [62-2] and interior pipe [62-1] tight fit, and at the blind end opening of interior pipe [62-1].The sidewall of elastic outer pipe [62-2] can perforate or not perforate, needs and side opening [62-3] dislocation the material selection rubber of elastic outer pipe [62-2] as perforate.Water-distributing device [6] can be one deck water distribution, or two-layer water distribution, or three layers of water distribution, distance between upper strata water distribution and lower floor's water distribution is less than 0.5 meter, every layer of water distribution is made up of from check sparge pipe [62] several, it is decided by the sectional area size of tower main body [5] from what of check sparge pipe, and common every 20-30 square centimeter is determined a sparge pipe.Angle β between evenly the arranging from check sparge pipe [62] of every layer of water distribution, it and tower main body [5] axis is the 0-60 degree, tilts in the same way.The levels water distribution from check sparge pipe [62] arrangement that should misplace.Be installed on tower main body [5] wall from check sparge pipe [62] sealing, the openend of interior pipe [62-1] stretches out outside the tower and links to each other with the wash water pipe.During use, wash water is intermittently sent in the tower by water-distributing device [6] with pulse mode, and pulse frequency is 30-180 time/minute.Only allow wash water is sent in the tower from check sparge pipe [62], do not allow slip to flow backwards.Because the tension force of elastic outer pipe [62-2] is the main resistance of liquid stream, the rate of discharge of wash water no longer is subjected to the influence of bed fluctuation, and each check sparge pipe evenly sprays, and clocklike the child is moving to make the bed of concentrated phase section, helps preventing the generation of channel and bias current.
In washing process, the floc sedimentation that moves down in company with bed is because phase mutual friction, the extruding of floc sedimentation, have a small amount of floc sedimentation and break, as untimely broken floc sedimentation is flocculated again, these materials will classifications under the effect of ascending water and are caused fluidisation, influence normal running, reduce detersive efficiency.Adding 0.003-0.05%(weight in washing agent) flocculant carries out the secondary flocculation, and broken floc sedimentation is flocculated again, prevents the fragmentation of floc sedimentation, guarantees normally carrying out of washing.
If the bed of scrubbing tower is too high, the own wt of slip floc sedimentation easily produces the fluidisation phenomenon to the crushing of bottom floc sedimentation, influences clean result.The present invention adopts the short tower of low bed layer, has overcome above-mentioned disadvantage.Be that dilute phase section I height is a 0.5-1.0 rice, concentrated phase section II height is a 0.5-1.5 rice, and the height of compression section III is a 0.5-1.5 rice, and the total height of scrubbing tower is a 2.5-5 rice.When the washing system is identical, dilute phase section I, the height of concentrated phase section II and compression section III and the sectional area of tower are irrelevant, and just owing to the tapering requirement of expanding reach [4] and conical bottom [7], its total height of the tower of enlarged-diameter slightly increases.
Underflow blow-off valve [8] can need even discharge with the multiply removal device or the pipe clip valve discharge of Beijing Inst., No.5, Ministry of Nuclear Industry's development, guarantees the bed interface stability.
During operation, slip is added by ore pulp charge pipe [3-1], and flocculant adds pipe [3-2] by flocculant and adds, under the stirring of the leafy paddle of multilayer [3-3], slip dilution flocculation, floc sedimentation is separated out sinking, by the washing of concentrated phase section, after overcompression, discharge by the underflow blow-off valve.The cleaning solution that contains flocculant is sent in the tower with pulse mode uniformly by water-distributing device, countercurrent washing material from bottom to top, and clear liquid is flowed out through overflow pipe [2] by downflow weir [1].
Tower body of the present invention is low, and water distribution evenly and not stops up, and flocculating effect is good, is difficult for producing channel, bias current, detersive efficiency height, operation easily.The present invention can be used for washing and the Separation of Solid and Liquid that hydrometallurgy process leaches ore pulp; Also can be used for the washing of other slip, as producing the sour deironing of washing after the acidleach of aluminium silicon titanium alloy raw material, the washing deironing of metatitanic acid etc. in the titanium white production.
Following Example is used for illustrating concrete result of implementation of the present invention.Contain Al
2O
370%, Fe1.0%, SiO
225% bauxite leaches iron with hydrochloric acid.Requirement is washed till pH3 with the acidity in the underflow solution.Sample ore I granularity-270 order accounts for 58.05%, and sample ore II-270 order accounts for 91.30%.Flocculant uses the synthetic PAN-1 of Beijing Inst., No.5, Ministry of Nuclear Industry, and molecular weight is 1.2 * 10
7If as follows:
Claims (13)
1, a kind of low bed layer high-efficient washing tower that is used for slip, by downflow weir [1], overflow pipe [2], self-loopa flocculator [3], expanding reach [4], tower main body [5], water-distributing device [6], conical bottom [7] and underflow blow-off valve [8] constitute, tower main body [5] includes dilute phase section I, concentrated phase section II and compression section III, water-distributing device [6] is installed between concentrated phase section II and the compression section III
Feature of the present invention is at what:
A. self-loopa flocculator [3] is installed in the expanding reach [4], said self-loopa flocculator [3] adds pipe [3-2], the leafy paddle of multilayer [3-3], flocculator cylindrical shell [3-4], flocculator conical bottom [3-5] and guide shell [3-6] by slip feeding pipe [3-1], flocculant and constitutes, slip adds pipe [3-1] and flocculant adds the upper and lower that pipe [3-2] is placed in the ground floor paddle of the leafy paddle of multilayer [3-3] respectively
B. water-distributing device [6] is by forming from check sparge pipe [62], said from interior pipe [62-1] and elastic outer pipe [62-2] formation of check sparge pipe [62] by end sealing, have side opening [62-3] on the tube wall of interior pipe [62-1], elastic outer pipe [62-2] and interior pipe [62-1] tight fit are topped live in pipe [62-1] and at the blind end opening of interior pipe [62-1], water-distributing device can be one deck water distribution, or two-layer water distribution, or three layers of water distribution
C. use the short tower of low bed layer.The short tower of said low bed layer is meant that the tower total height is a 2.5-5 rice, and the height of dilute phase section I is a 0.5-1.0 rice, and the height of concentrated phase section II is a 0.5-1.5 rice, and the height of compression section III is a 0.5-1.5 rice.
2,, it is characterized in that the time of staying of slip in self-loopa flocculator [3] is 10-30 minute according to the said scrubbing tower of claim 1.
3, by the said scrubbing tower of claim 1, it is characterized in that the angle of release α of the conical bottom [3-5] of self-loopa flocculator [3] is the 40-90 degree, the best is the 55-65 degree.
4, by the said scrubbing tower of claim 1, the height that it is characterized in that the mozzle [3-6] of self-loopa flocculator [3] is 1.5-3 a times of its diameter.
5, by the said scrubbing tower of claim 1, the hole count that it is characterized in that side opening [62-3] is 1-10, and the best is 2-4, and the position in hole is indefinite.
6, by the said scrubbing tower of claim 1, the material that it is characterized in that interior pipe [62-1] can be plastics or stainless steel, preferential being vinyon and containing the Mo stainless steel of selecting.
7, by the said scrubbing tower of claim 1, it is characterized in that elastic outer pipe [62-2] can perforate or not perforate, the perforate of elastic outer pipe needs and side opening [62-3] dislocation, and the material of elastic outer pipe [62-2] is a rubber.
8, by the said scrubbing tower of claim 1, it is characterized in that the angle β between check sparge pipe [62] and tower main body [5] axis is the 0-60 degree, tilt in the same way.
9, use the method for high-efficient washing tower washing slip to be, slip is added by the top of expanding reach [4], washing agent is added by water-distributing device [6], eluate is discharged by overfall [2] by downflow weir [1], the material of cleaning is discharged by underflow blow-off valve [8], it is characterized in that slip adds pipe [3-1] by slip and adds, flocculant adds pipe [3-2] by flocculant and adds, the revolution of the leafy paddle of multilayer [3-3] is 15-90 rev/min, linear velocity be 20-80 rice/minute, washing agent contains 0.003-0.05%(weight) flocculant, enter in the tower by water-distributing device [6] with pulse mode, its pulse frequency is 30-180 time/minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87103513A CN1003213B (en) | 1987-05-16 | 1987-05-16 | High efficiency washing tower with low bed layer for slurry and its application |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87103513A CN1003213B (en) | 1987-05-16 | 1987-05-16 | High efficiency washing tower with low bed layer for slurry and its application |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87103513A CN87103513A (en) | 1988-12-21 |
| CN1003213B true CN1003213B (en) | 1989-02-08 |
Family
ID=4814469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87103513A Expired CN1003213B (en) | 1987-05-16 | 1987-05-16 | High efficiency washing tower with low bed layer for slurry and its application |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1003213B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100443139C (en) * | 2006-12-27 | 2008-12-17 | 湖南工业大学 | Highly effective reaction deep-cone settling method and apparatus |
| CN102139169B (en) * | 2010-01-29 | 2015-08-12 | 通用电气公司 | Settler, method and the system containing this settler |
| CN102442701A (en) * | 2010-10-11 | 2012-05-09 | 伍宏斌 | Manganous manganic oxide washing tower with variable-diameter tapered bucket |
| CN111603811B (en) * | 2020-07-01 | 2023-06-30 | 长沙矿山研究院有限责任公司 | Feeding box for thickener and using method thereof |
-
1987
- 1987-05-16 CN CN87103513A patent/CN1003213B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN87103513A (en) | 1988-12-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109500074A (en) | Dystopy suitable for clayed soil pollution amelioration elutes prosthetic device and restorative procedure | |
| US4999115A (en) | Method and apparatus for use in separating solids from liquids | |
| CN106976930A (en) | Hydrocyclone separator for sludge water, and treatment system and method for synchronous dissolution of sludge water concentration/coagulant | |
| CN110025988A (en) | A kind of slime water concentration processing system of three sections of underflow discharges | |
| CN206645932U (en) | Integrated high load capacity precipitates separation equipment | |
| CN102302976A (en) | Coarse coal slime hydraulic classification process | |
| CN106362862B (en) | Method based on the selected magnetic mineral of all-in-one | |
| CA1098487A (en) | Multi separator, including cyclonic counterflow, system operating on iron ore | |
| CN110420746A (en) | A kind of Pb-Zn separation method that Porphyry Lead zinc ore beneficiation wastewater resourcebility utilizes | |
| CN1003213B (en) | High efficiency washing tower with low bed layer for slurry and its application | |
| CN105858735A (en) | Vertical eddy current reinforced separation device and granulation fluidized bed for efficient solid-liquid separation | |
| CN206395925U (en) | Deliming anaerobic reactor | |
| CN212374978U (en) | Magnesium ammonium phosphate reactor | |
| US3423313A (en) | High solid content slurry separating method | |
| CN107694744A (en) | Desliming process is combined in a kind of ultrasonic wave table floation | |
| CN106495198A (en) | A kind of method that utilization hydrocyclone purifies ardealite | |
| CN2345265Y (en) | Sewage purifier | |
| CN217127107U (en) | Sorting field sewage purification circulating system | |
| CN102139945A (en) | Concentration method for floatation tailings and concentration device | |
| JPS62129162A (en) | Apparatus and method for foam flotation | |
| KR900006074B1 (en) | Method and apparatus for seperating solids from liquids | |
| CN212954460U (en) | High-efficient device that subsides of mine water | |
| CN209317889U (en) | A kind of fluorine carbon cerium type rare earth weight magnetic tailing recycling production system | |
| CN108940201B (en) | Carbon washing tank and production method of low-ash water purification activated carbon | |
| CN209378609U (en) | A kind of dry discharge cycle system of slurry environmental protection |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |