CN105149084A - Dry-wet-method mineral separation method used for African sandy diatomite ore - Google Patents
Dry-wet-method mineral separation method used for African sandy diatomite ore Download PDFInfo
- Publication number
- CN105149084A CN105149084A CN201510437953.9A CN201510437953A CN105149084A CN 105149084 A CN105149084 A CN 105149084A CN 201510437953 A CN201510437953 A CN 201510437953A CN 105149084 A CN105149084 A CN 105149084A
- Authority
- CN
- China
- Prior art keywords
- diatomite
- classification
- ore
- sediment
- slurry
- 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.)
- Pending
Links
Landscapes
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
The invention relates to the field of mineral processing, and discloses a dry-wet-method mineral separation method used for African sandy diatomite ore. The technical problem that in the prior art, a mineral separation scheme is difficultly suitable for mineral separation and purification of ultralow-grade sandy diatomite ore can be solved through the method. The method comprises the steps that raw diatomite ore is crushed and scattered to obtain diatomite ore powder, and the granularity of the diatomite ore powder is smaller than 10 mm; a self-flow-dividing type air classifier is used for carrying out dry-method classification on the diatomite ore powder to obtain two classified products, namely a classified course product and a classified fine product, and the classification fineness is 10-150 micrometers; water is added to the classified fine product for scrubbing pulping to obtain ore pulp; pH regulators and a dispersing agent, namely sodium pyrophosphate, are added and stirred to be scattered, so that pulp is obtained; the pulp is subjected to centrifugal separation to obtain first precipitate; and the first precipitate is dried to obtain purified diatomite. The technical effects of mineral separation and purification on the ultralow-grade sandy diatomite ore are achieved.
Description
Technical field
The present invention relates to mineral manufacture field, particularly relate to a kind of wet-dry change beneficiation method for African chiltern diatomite ore.
Background technology
Diatomite is a kind of biogenic silicastone, and main component is unformed SiO
2, because of the physicochemical property of its uniqueness, be widely used in the fields such as chemical industry, environmental protection, building materials, agricultural and industrial filter, be a kind of with modern industry and mankind's environmental protection, the closely-related non-renewable non-metallic mineral resource of health industry.Up to now, found in the world or in the diatomite resource verified great majority be in, inferior clay matter or the diatomite ore containing clay class impurity.But the diatomite ore of the African Niger belongs to low-grade chiltern diatomite, raw ore diatom content about 20% is a kind of diatomite resource being different from China and U.S.A, utilizes the key of this low-quality diatomite resource to be carry out purification by mineral to it.
In the past in 20 years, ore separation of diatomite technology has had marked improvement.At present, low-grade ore separation of diatomite method is divided into Physical, chemical method, physics, chemical combined ore-dressing technique three kinds, but scheme of the prior art mainly for be diatom particle with the dispersion of microfine clay impure mineral, be separated.Because the feature of African Niger diatomite ore is: the chiltern mineral such as major impurity mineral are quartz, feldspar, clay impure mineral content is lower, and diatom content lower (diatom content is about 20%).So scheme of concentration disclosed in prior art is difficult to the purification by mineral being applicable to super low-grade chiltern diatomite ore.
Summary of the invention
The invention provides a kind of wet-dry change beneficiation method for African chiltern diatomite ore, to solve the technical problem that scheme of concentration of the prior art is difficult to the purification by mineral being applicable to super low-grade chiltern diatomite ore.
The embodiment of the present invention provides a kind of wet-dry change beneficiation method for African chiltern diatomite ore, comprising:
Fragmentation is carried out to diatomite original ore and breaks up acquisition diatomite breeze, the granularity < 10mm of described diatomite breeze;
Adopt self-shunting gas flow sizing machine to carry out dry classification to described diatomite breeze, obtain two kinds of graded products: classification crude product, the thin product of classification, wherein classification fineness is 10 μm ~ 150 μm;
The thin product of described classification is added water and carries out scouring slurrying acquisition slurry ore deposit;
Described slurry ore deposit interpolation pH adjusting agent and dispersant are carried out dispersed with stirring, and obtain slurry, wherein said dispersant is sodium pyrophosphate;
Centrifugal classification is carried out to described slurry and obtains the first sediment;
Drying process is carried out to described first sediment and obtains diatomite.
Optionally, described scouring mixing time is 15 ~ 40min.
Optionally, the liquid-solid ratio of described slurry is 1:0.50 ~ 1.25; The pH value of described slurry is 9 ~ 11.
Optionally, the consumption of described dispersant sodium pyrophosphate is 0.2% ~ 0.5% of the quality of described diatomite original ore.
Optionally, describedly centrifugal classification carried out to described slurry obtain the first sediment, specifically comprise:
Added by described slurry in horizontal centrifugal ore separators and carry out centrifugal classification and then obtain described first sediment, wherein, described mineral aggregate mass percent concentration is 8% ~ 25%, and centrifugation factor is 2000 ~ 3400.
Optionally, described to described first sediment carry out drying process obtain diatomite, specifically comprise:
Filter-press dehydration is carried out to described first sediment, obtains filter cake;
Drying is carried out to described filter cake and obtains described diatomite.
Optionally, described filter-press dehydration is carried out to described first sediment after, described method also comprises:
Filtrate is imported reuse pool.
Optionally, described described slurry added in horizontal centrifugal ore separators carry out centrifugal classification after, described method also comprises:
Obtain the first overflow of described centrifugal classification;
Flocculant is added in described first overflow;
Described first overflow adding flocculant is carried out centrifugal classification by horizontal spiral centrifuge, obtains the second overflow and the second sediment, described second sediment is mine tailing;
Described second overflow is imported reuse pool.
Optionally, described described slurry carried out to centrifugal classification and then obtains the first sediment before, described method also comprises:
Remove radius in described slurry and be greater than the particle of preset value.
Beneficial effect of the present invention is as follows:
Due in embodiments of the present invention, provide a kind of wet-dry change beneficiation method for African chiltern diatomite ore, comprising: fragmentation is carried out to diatomite original ore and breaks up acquisition diatomite breeze, the granularity < 10mm of diatomite breeze; Adopt self-shunting gas flow sizing machine to carry out dry classification to diatomite breeze, obtain two kinds of graded products: classification crude product, the thin product of classification, wherein classification fineness is 10 μm ~ 150 μm; The thin product of classification is added water and carries out scouring slurrying acquisition slurry ore deposit; Interpolation pH adjusting agent and dispersant sodium pyrophosphate are carried out dispersed with stirring, obtains slurry; Centrifugal classification is carried out to slurry and obtains the first sediment; Drying process is carried out to the first sediment and obtains diatomite.Wherein, because the chiltern mineral such as quartz, feldspar granularity after fragmentation is broken up is also comparatively large, the chiltern mineral such as quartz, feldspar can be removed in diatomite fine powder by dry classification; And the density of clay is lower, so obtain the first sediment by centrifugal classification, just can remove clay, so chiltern mineral and the clay such as quartz, feldspar in diatomite ore can be removed, thus reach the technique effect that can carry out purification by mineral to super low-grade chiltern diatomite ore;
Further, the inventive method can the efficient separation Africa Niger low-grade chiltern diatomite ore, obtains high-recovery and high-quality diatomite.The diatom mineral content of diatomite and the rate of recovery all reach more than 90%; Diatomite diatom content>=80%, SiO
2content>=86%, Al
2o
3and Fe
2o
3content is less than 4.0% and 1.5% respectively; This technique efficiency of separation and precision is high, diatomite smart soil property amount is good and stable, production line floor space is little, the diatom rate of recovery is high, stabilization of equipment performance and reliability high.In addition, this method water consumption is few, and subsequent wet mill water can reuse, is conducive to this technique in lack of water mining area industrial applications such as Africa.
Accompanying drawing explanation
Fig. 1 is the flow chart for the wet-dry change beneficiation method of African chiltern diatomite ore in the embodiment of the present invention;
Fig. 2 is the flow chart processed the first overflow in the wet-dry change beneficiation method of the embodiment of the present invention for African chiltern diatomite ore;
Fig. 3 is the flow chart of dry method ore dressing in the embodiment of the present invention one;
Fig. 4 is the flow chart of wet dressing in the embodiment of the present invention one.
Detailed description of the invention
The invention provides a kind of wet-dry change beneficiation method for African chiltern diatomite ore, to solve the technical problem that scheme of concentration of the prior art is difficult to the purification by mineral being applicable to super low-grade chiltern diatomite ore.
Technical scheme in the embodiment of the present application is solve above-mentioned technical problem, and general thought is as follows:
In embodiments of the present invention, provide a kind of wet-dry change beneficiation method for African chiltern diatomite ore, comprising: fragmentation is carried out to diatomite original ore and breaks up acquisition diatomite breeze, the granularity < 10mm of diatomite breeze; Adopt self-shunting gas flow sizing machine to carry out dry classification to diatomite breeze, obtain two kinds of graded products: classification crude product, the thin product of classification, wherein classification fineness is 10 μm ~ 150 μm; The thin product of classification is added water and carries out scouring slurrying acquisition slurry ore deposit; Interpolation pH adjusting agent and dispersant sodium pyrophosphate are carried out dispersed with stirring, obtains slurry; Centrifugal classification is carried out to slurry and obtains the first sediment; Drying process is carried out to the first sediment and obtains diatomite.Wherein, because the chiltern mineral such as quartz, feldspar granularity after fragmentation is broken up is also comparatively large, the chiltern mineral such as quartz, feldspar can be removed in diatomite fine powder by dry classification; And the density of clay is lower, so obtain the first sediment by centrifugal classification, just can remove clay, so chiltern mineral and the clay such as quartz, feldspar in diatomite ore can be removed, thus reach the technique effect that can carry out purification by mineral to super low-grade chiltern diatomite ore;
Further, the inventive method can the efficient separation Africa Niger low-grade chiltern diatomite ore, obtains high-recovery and high-quality diatomite.The diatom mineral content of diatomite and the rate of recovery all reach more than 90%; Diatomite diatom content>=80%, SiO
2content>=86%, Al
2o
3and Fe
2o
3content is less than 4.0% and 1.5% respectively; This technique efficiency of separation and precision is high, diatomite smart soil property amount is good and stable, production line floor space is little, the diatom rate of recovery is high, stabilization of equipment performance and reliability high.In addition, this method water consumption is few, and subsequent wet mill water can reuse, is conducive to this technique in lack of water mining area industrial applications such as Africa.
In order to better understand technique scheme, below by accompanying drawing and specific embodiment, technical solution of the present invention is described in detail, the specific features being to be understood that in the embodiment of the present invention and embodiment is the detailed description to technical solution of the present invention, instead of the restriction to technical solution of the present invention, when not conflicting, the technical characteristic in the embodiment of the present invention and embodiment can combine mutually.
The embodiment of the present invention provides a kind of wet-dry change beneficiation method for African chiltern diatomite ore, please refer to Fig. 1, comprising:
Step S101: fragmentation is carried out to diatomite original ore and breaks up acquisition diatomite breeze, the granularity < 10mm of diatomite breeze;
Step S102: adopt self-shunting gas flow sizing machine to carry out dry classification to diatomite breeze, obtain two kinds of graded products: classification crude product, the thin product of classification, wherein classification fineness is 10 μm ~ 150 μm;
Step S103: the thin product of classification is added water and carries out scouring slurrying acquisition slurry ore deposit;
Step S104: described slurry ore deposit interpolation pH adjusting agent and dispersant are carried out dispersed with stirring, and obtain slurry, wherein said dispersant is sodium pyrophosphate;
Step S105: centrifugal classification is carried out to slurry and obtains the first sediment;
Step S106: drying process is carried out to the first sediment and obtains diatomite.
In step S101, fragmentation can be carried out by horizontal impact grinding to diatomite original ore and break up;
In step S102, the chiltern mineral such as the quartz that in diatomite original ore, Relative Size is thicker, feldspar, enter classification crude product (wherein, diatomite content≤5%, SiO2 content >=95%); The diatomite that Relative Size is thinner, clay mineral etc. enter the thin product of classification (the diatom rate of recovery >=90%, diatom content 65% ~ 75%, SiO2 content 75% ~ 80%), thus realize the sorting of diatomite and chiltern mineral (also namely: classification crude product).
In step S103, scouring mixing time is 15 ~ 40min.
In step S104, the liquid-solid ratio of slurry is 1:0.50 ~ 1.25; The pH value of slurry is 9 ~ 11.
As further preferred embodiment, in step S104, the consumption of dispersant sodium pyrophosphate is 0.2% ~ 0.5% of the quality of diatomite original ore.
In step S105, centrifugal classification is carried out to slurry and obtains the first sediment, specifically comprise: slurry is added in horizontal centrifugal ore separators and carry out centrifugal classification and then obtain the first sediment, mineral aggregate mass percent concentration be 8% ~ 25% (it is 8% ~ 25% that the concentration of the mineral aggregate also namely in slurry calculates according to mass percent), centrifugation factor 2000 ~ 3400.
Wherein, under centrifugal action, the diatomite of Relative Size comparatively large (97%≤75 μm) is sequentially precipitated on horizontal screw centrifugal ore separators rotary drum by granule size, form centrifugal sediment (being also the first sediment), the microfine clay impure mineral (90%≤2 μm) of high degree of dispersion, then form overflow to discharge, thus realize the sorting of diatomite and clay mineral.
In step S106, drying process is carried out to the first sediment and obtains diatomite, specifically comprise: filter-press dehydration is carried out to the first sediment, obtain filter cake; Drying is carried out to filter cake and obtains diatomite.
As further preferred embodiment, after carrying out filter-press dehydration based on step S106 to the first sediment, method also comprises: filtrate is imported reuse pool, thus can realize the recycling to filtrate.
As further preferred embodiment, after being added in horizontal centrifugal ore separators by slurry based on step S105 and carrying out centrifugal classification, please refer to Fig. 2, method also comprises:
Step S201: the first overflow obtaining centrifugal classification;
Step S202: add flocculant in the first overflow;
Step S203: the first overflow adding flocculant is carried out centrifugal classification by horizontal spiral centrifuge, obtains the second overflow and the second sediment, and the second sediment is mine tailing;
Step S204: the second overflow is imported reuse pool.
In step S201, the first overflow of centrifugal classification is mainly microfine clay impure mineral (90%≤2 μm);
In step S202, flocculant is such as: the materials such as polyaluminium sulfate.
In step S203, mine tailing is generally clay, can prepare burden as building materials;
In step S204, described second overflow is imported reuse pool and can play the object of carrying out replying utilization to water.
Optionally, before based on step S105 slurry being carried out to centrifugal classification and then obtaining the first sediment, method also comprises: remove radius in slurry and be greater than the particle of preset value.
This step is mainly used for removing the impurity such as fine sand, with the carrying out making centrifugal point of first step convenient.
The wet-dry change beneficiation method for African chiltern diatomite ore introduced to make the present invention of the more detailed understanding of those skilled in the art, below the practical application based on the method is introduced it, certain following examples only make an explanation to its application, not as restriction.
Embodiment one
The present embodiment is introduced to the wet-dry change beneficiation method specific implementation flow process being used for African chiltern diatomite ore, and this flow process comprises two parts, and a part is dry separation process, and another part carries out wet split to the result of dry separation.
Please refer to Fig. 3, this dry separation process comprises the following steps:
Step S301: obtain the diatomite original ore that granularity is less than 200mm;
Step S302: carry out fragmentation to diatomite original ore and break up acquisition diatomite breeze, the granularity of diatomite breeze is less than or equal to 10mm;
Step S303: after acquisition diatomite breeze, further can also carry out grinding dispersion to diatomite breeze, the granularity≤1mm of the diatomite breeze after dispersion;
Step S304: carry out dry separation, dry separation result comprises dry classification crude product and the thin product of dry classification, and dry classification crude product is quartz sand; The thin product of dry classification comprises: diatomite (meal) and subparticle (clay and broken diatom).
Please refer to Fig. 4, wet split comprises the following steps:
Step S401: obtain the thin product of dry classification carrying out after dry classification to diatomite;
Step S402: water is added to the thin product of dry classification and carries out scouring slurrying, then add PH adjusting agent, thus the pH value in slurry ore deposit is adjusted to 9 ~ 11;
Step S403: add dispersant and dispersed with stirring/dilution in ore pulp;
Step S404: remove the gravel in ore pulp etc. and slightly mix, coarse grain wherein forms chiltern product, and coarse grain comprises: coarse sand, chip, organic matter;
Step S405: remove fine grained sand and mix, the impurity such as fine sand also form chiltern product;
Step S406: carry out centrifugal classification, obtains the first sediment and the first overflow;
Step S407: buffering dispersion is carried out to the first sediment;
Step S408: carry out filter-press dehydration to the first sediment after buffering dispersion, its filtrate enters reuse pool;
Step S409: carry out drying to the filter cake of filter-press dehydration, obtains diatomite;
Step S410: the first overflow is added overflow surge tank;
Step S411: add flocculant and insert slurry can (as: polyaluminium sulfate) in the first overflow;
Step S412: carry out centrifugal classification to the first overflow adding flocculant by horizontal spiral centrifuge, reuse pool is carried out in overflow wherein; Sediment is then mine tailing (such as: clay), can be used as building materials batching.
Embodiment two
By the diatomite original ore of 2000kg (moisture content 5%) diatomite content about 20%, the sorting of LHB-N type self-shunting gas flow sizing machine was fed after adopting the horizontal impact grinding pulverizing of LHI-70 type to break up, continuous dosing runs 40min, obtains two kinds of classification products (1# meal 1456kg (coarse sand), 2# fine powder 545kg); 545kg classification fine powder and clear water 800L are added in the lump in the Double-groove swaging machine of ZCX-0.25 × 2 and clean and adjust pH values of pulp=9.5 with NaOH, clean time 20min; Ore pulp after scouring enters agitator, adds 1380L water while stirring and adds 850g sodium pyrophosphate and disperse; Ore pulp after dispersion feeds horizontal centrifugal ore separators and carries out separation clay and diatomite, centrifugation factor 2400, and centrifugal sediment obtains 438kg diatomite (moisture content about 8%) after press filtration, drying.
Embodiment three
By the diatomite original ore of 2000kg (moisture content 5%) diatomite content about 20%, the sorting of LHB-N type self-shunting gas flow sizing machine was fed after adopting the horizontal impact grinding pulverizing of LHI-70 type to break up, continuous dosing runs 40min, obtains two kinds of classification products (1# meal 1456kg (coarse sand), 2# fine powder 545kg); 545kg classification fine powder and clear water 900L are added in the lump in the Double-groove swaging machine of ZCX-0.25 × 2 and clean and adjust pH values of pulp=10 with NaOH, clean time 20min; Ore pulp after scouring enters agitator, adds 1600L water while stirring and adds 850g sodium pyrophosphate and disperse; Ore pulp after dispersion feeds horizontal centrifugal ore separators and carries out separation clay and diatomite, centrifugation factor 2800, and centrifugal sediment obtains 445kg diatomite (moisture content about 8%) after press filtration, drying.
Embodiment four
By the diatomite original ore of 2000kg (moisture content 5%) diatomite content about 20%, the sorting of LHB-N type self-shunting gas flow sizing machine was fed after adopting the horizontal impact grinding pulverizing of LHI-70 type to break up, continuous dosing runs 40min, obtains two kinds of classification products (1# meal 1456kg (coarse sand), 2# fine powder 545kg); 545kg classification fine powder and clear water 800L are added in the lump in the Double-groove swaging machine of ZCX-0.25 × 2 and clean and adjust pH values of pulp=10.5 with NaOH, clean time 20min; Ore pulp after scouring enters agitator, adds 1380L water while stirring and adds 850g sodium pyrophosphate and disperse; Ore pulp after dispersion feeds horizontal centrifugal ore separators and carries out separation clay and diatomite, centrifugation factor 3000, and centrifugal sediment obtains 448kg diatomite (moisture content about 8%) after press filtration, drying.
Embodiment five
By the diatomite original ore of 2000kg (moisture content 5%) diatomite content about 20%, the sorting of LHB-N type self-shunting gas flow sizing machine was fed after adopting the horizontal impact grinding pulverizing of LHI-70 type to break up, continuous dosing runs 40min, obtains two kinds of classification products (1# meal 1456kg (coarse sand), 2# fine powder 545kg); 545kg classification fine powder and clear water 800L are added in the lump in the Double-groove swaging machine of ZCX-0.25 × 2 and clean and adjust pH values of pulp=10 with NaOH, clean time 20min; Ore pulp after scouring enters agitator, adds 1500L water while stirring and adds 850g sodium pyrophosphate and disperse; Ore pulp after dispersion feeds horizontal centrifugal ore separators and carries out separation clay and diatomite, centrifugation factor 3200, and centrifugal sediment obtains 450kg diatomite (moisture content about 8%) after press filtration, drying.
Wherein, the classification coarse sand of embodiment two to five and the diatom mineral content of diatomite and main chemical compositions analysis result list in table 1.
Table 1
One or more embodiment of the present invention, at least has following beneficial effect:
In embodiments of the present invention, provide a kind of wet-dry change beneficiation method for African chiltern diatomite ore, comprising: fragmentation is carried out to diatomite original ore and breaks up acquisition diatomite breeze, the granularity < 10mm of diatomite breeze; Adopt self-shunting gas flow sizing machine to carry out dry classification to diatomite breeze, obtain two kinds of graded products: classification crude product, the thin product of classification, wherein classification fineness is 10 μm ~ 150 μm; The thin product of classification is added water and carries out scouring slurrying acquisition slurry ore deposit; Interpolation pH adjusting agent and dispersant sodium pyrophosphate are carried out dispersed with stirring, obtains slurry; Centrifugal classification is carried out to slurry and obtains the first sediment; Drying process is carried out to the first sediment and obtains diatomite.Wherein, because the chiltern mineral such as quartz, feldspar granularity after fragmentation is broken up is also comparatively large, the chiltern mineral such as quartz, feldspar can be removed in diatomite fine powder by dry classification; And the density of clay is lower, so obtain the first sediment by centrifugal classification, just can remove clay, so chiltern mineral and the clay such as quartz, feldspar in diatomite ore can be removed, thus reach the technique effect that can carry out purification by mineral to super low-grade chiltern diatomite ore;
Further, the inventive method can the efficient separation Africa Niger low-grade chiltern diatomite ore, obtains high-recovery and high-quality diatomite.The diatom mineral content of diatomite and the rate of recovery all reach more than 90%; Diatomite diatom content>=80%, SiO
2content>=86%, Al
2o
3and Fe
2o
3content is less than 4.0% and 1.5% respectively; This technique efficiency of separation and precision is high, diatomite smart soil property amount is good and stable, production line floor space is little, the diatom rate of recovery is high, stabilization of equipment performance and reliability high.In addition, this method water consumption is few, and subsequent wet mill water can reuse, is conducive to this technique in lack of water mining area industrial applications such as Africa.
In order to better understand technique scheme, below by accompanying drawing and specific embodiment, technical solution of the present invention is described in detail, the specific features being to be understood that in the embodiment of the present invention and embodiment is the detailed description to technical solution of the present invention, instead of the restriction to technical solution of the present invention, when not conflicting, the technical characteristic in the embodiment of the present invention and embodiment can combine mutually.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.
Claims (9)
1., for a wet-dry change beneficiation method for African chiltern diatomite ore, it is characterized in that, comprising:
Fragmentation is carried out to diatomite original ore and breaks up acquisition diatomite breeze, the granularity < 10mm of described diatomite breeze;
Adopt self-shunting gas flow sizing machine to carry out dry classification to described diatomite breeze, obtain two kinds of graded products: classification crude product, the thin product of classification, wherein classification fineness is 10 μm ~ 150 μm;
The thin product of described classification is added water and carries out scouring slurrying acquisition slurry ore deposit;
Described slurry ore deposit interpolation pH adjusting agent and dispersant are carried out dispersed with stirring, and obtain slurry, wherein said dispersant is sodium pyrophosphate;
Centrifugal classification is carried out to described slurry and obtains the first sediment;
Drying process is carried out to described first sediment and obtains diatomite.
2. the method for claim 1, is characterized in that, described scouring mixing time is 15 ~ 40min.
3. the method for claim 1, is characterized in that, the liquid-solid ratio of described slurry is 1:0.50 ~ 1.25; The pH value of described slurry is 9 ~ 11.
4. the method for claim 1, is characterized in that, the consumption of described dispersant sodium pyrophosphate is 0.2% ~ 0.5% of the quality of described diatomite original ore.
5. the method for claim 1, is characterized in that, describedly carries out centrifugal classification to described slurry and obtains the first sediment, specifically comprises:
Added by described slurry in horizontal centrifugal ore separators and carry out centrifugal classification and then obtain described first sediment, wherein, mineral aggregate mass percent concentration is 8% ~ 25%, and centrifugation factor is 2000 ~ 3400.
6. the method for claim 1, is characterized in that, described to described first sediment carry out drying process obtain diatomite, specifically comprise:
Filter-press dehydration is carried out to described first sediment, obtains filter cake;
Drying is carried out to described filter cake and obtains described diatomite.
7. method as claimed in claim 6, is characterized in that, described filter-press dehydration is carried out to described first sediment after, described method also comprises:
Filtrate is imported reuse pool.
8. method as claimed in claim 6, is characterized in that, described described slurry added in horizontal centrifugal ore separators carry out centrifugal classification after, described method also comprises:
Obtain the first overflow of described centrifugal classification;
Flocculant is added in described first overflow;
Described first overflow adding flocculant is carried out centrifugal classification by horizontal spiral centrifuge, obtains the second overflow and the second sediment, described second sediment is mine tailing;
Described second overflow is imported reuse pool.
9. the method as described in as arbitrary in claim 1-8, is characterized in that, described described slurry carried out to centrifugal classification and then obtains the first sediment before, described method also comprises:
Remove radius in described slurry and be greater than the particle of preset value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510437953.9A CN105149084A (en) | 2015-07-23 | 2015-07-23 | Dry-wet-method mineral separation method used for African sandy diatomite ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510437953.9A CN105149084A (en) | 2015-07-23 | 2015-07-23 | Dry-wet-method mineral separation method used for African sandy diatomite ore |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105149084A true CN105149084A (en) | 2015-12-16 |
Family
ID=54790292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510437953.9A Pending CN105149084A (en) | 2015-07-23 | 2015-07-23 | Dry-wet-method mineral separation method used for African sandy diatomite ore |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105149084A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975563A (en) * | 2017-05-17 | 2017-07-25 | 上海圣地亚水务发展有限公司 | Diatom ore deposit unhurried current normal temperature of washing the sand selects algae method |
| CN110038737A (en) * | 2019-05-17 | 2019-07-23 | 贵州三稀新能源科技股份有限公司 | A method of the silicalite physical upgrading of shale containing lithium |
| CN112978746A (en) * | 2021-04-25 | 2021-06-18 | 昆明理工大学 | Clay type ultralow-grade diatomite purification method |
| CN113231192A (en) * | 2021-06-16 | 2021-08-10 | 江西省矿产资源保障服务中心 | Beneficiation method for silicon dioxide in silicon-planted ore |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184714A (en) * | 1996-12-10 | 1998-06-17 | 王庆中 | Method and equipment for physical ore dressing of super low grade infusorial earth |
| CN101596490A (en) * | 2008-06-05 | 2009-12-09 | 中国矿业大学(北京) | A kind of dried, the integrated ore-dressing technique of wet method of diatomite ore |
| US20100159247A1 (en) * | 2007-09-04 | 2010-06-24 | Kotobuki Engineering & Manufacturing Co., Ltd. | Sand making apparatus, sand making method, and made sand |
| CN102744145A (en) * | 2012-06-18 | 2012-10-24 | 中国矿业大学(北京) | Scrubbing process for diatomaceous earth ores |
| CN102921532A (en) * | 2011-08-09 | 2013-02-13 | 中国矿业大学(北京) | Laminar centrifugal beneficiation method for diatomite ores |
-
2015
- 2015-07-23 CN CN201510437953.9A patent/CN105149084A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1184714A (en) * | 1996-12-10 | 1998-06-17 | 王庆中 | Method and equipment for physical ore dressing of super low grade infusorial earth |
| US20100159247A1 (en) * | 2007-09-04 | 2010-06-24 | Kotobuki Engineering & Manufacturing Co., Ltd. | Sand making apparatus, sand making method, and made sand |
| CN101596490A (en) * | 2008-06-05 | 2009-12-09 | 中国矿业大学(北京) | A kind of dried, the integrated ore-dressing technique of wet method of diatomite ore |
| CN102921532A (en) * | 2011-08-09 | 2013-02-13 | 中国矿业大学(北京) | Laminar centrifugal beneficiation method for diatomite ores |
| CN102744145A (en) * | 2012-06-18 | 2012-10-24 | 中国矿业大学(北京) | Scrubbing process for diatomaceous earth ores |
Non-Patent Citations (1)
| Title |
|---|
| 第1版: "《非金属矿加工工艺与设备》", 31 August 2009 * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106975563A (en) * | 2017-05-17 | 2017-07-25 | 上海圣地亚水务发展有限公司 | Diatom ore deposit unhurried current normal temperature of washing the sand selects algae method |
| CN106975563B (en) * | 2017-05-17 | 2019-09-27 | 上海圣地亚水务发展有限公司 | Diatom mine unhurried current room temperature of washing the sand selects algae method |
| CN110038737A (en) * | 2019-05-17 | 2019-07-23 | 贵州三稀新能源科技股份有限公司 | A method of the silicalite physical upgrading of shale containing lithium |
| CN112978746A (en) * | 2021-04-25 | 2021-06-18 | 昆明理工大学 | Clay type ultralow-grade diatomite purification method |
| CN112978746B (en) * | 2021-04-25 | 2023-11-14 | 昆明理工大学 | Clay type ultra-low grade diatomite purification method |
| CN113231192A (en) * | 2021-06-16 | 2021-08-10 | 江西省矿产资源保障服务中心 | Beneficiation method for silicon dioxide in silicon-planted ore |
| CN113231192B (en) * | 2021-06-16 | 2022-05-27 | 江西省矿产资源保障服务中心 | Beneficiation method for silicon dioxide in silicon-planted ore |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101912811B (en) | Method for preparing nepheline syenite powder | |
| CN100478077C (en) | Mine milling method for improving particles size distribution of bauxite mine milling products | |
| CN103459625B (en) | The manufacture method of titanium dioxide concentrate | |
| CN101596490B (en) | Dry and wet method integration mineral processing technology for diatomite ore | |
| CN103480483B (en) | A kind of phosphorus ore heavymedia separation and direct reverse flotation process integration | |
| CN101214968A (en) | Method for purifying and processing attapulgite clay mineral | |
| CN108940569B (en) | Comprehensive utilization method of granite | |
| CN104261361B (en) | A kind of low-grade refractory selects the washup direct flotation method of shale phosphorus ore | |
| CN108405152B (en) | Dry purification process of low-grade bentonite | |
| CN101269946A (en) | Calcination kleit preparing method | |
| CN105149084A (en) | Dry-wet-method mineral separation method used for African sandy diatomite ore | |
| CN102631979A (en) | Magnetic ore dressing method of high-quality feldspar ore | |
| CN105289837A (en) | Process adopting barite-fluorite paragenic ore for preparing barite powder | |
| CN106395839A (en) | Process for preparing calcined kaolin for electrophoretic paint from gangue | |
| CN105149219A (en) | Dry beneficiation method for Africa sandy diatomite ore | |
| CN107805043A (en) | A kind of method that thin mine tailing and kaolin inferior prepare medium-to-high grade kaolin clay for ceramic | |
| CN107902685A (en) | A kind of no grinding aid wet-milling, slurry grading system for superfine heavy calcium carbonate technique | |
| CN110357572A (en) | A kind of kaolin intelligence wet powder-making method for ceramic raw material | |
| CN101658854B (en) | Method for preparing high-performance concrete additive by using steel slag ball-milling waste residue | |
| CN103316764A (en) | Method for recycling titanium dioxide from titanium dioxide acidolysis sludge | |
| KR100857725B1 (en) | Purification method for limestone | |
| CN104138793A (en) | Reselection impurity removal method for talcum ore containing ferrous sulfide | |
| CN114405659A (en) | Process method for producing ceramic material based on granite machine-made sand tailings | |
| CN110302894B (en) | Desilication method for producing bauxite concentrate by using ultra-low grade raw ore | |
| CN102773149A (en) | Dressing and purification method of powder quartz |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170214 Address after: 100007 Dongcheng District, Dongzhimen, China, North Street, No. 9 Oil Mansion, No. Applicant after: China National Petroleum Corporation Applicant after: China Petroleum Pipeline Bureau Engineering Co., Ltd. Applicant after: Tianjin Dagang Oilfield Group Engineering Construction Co., Ltd. Address before: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Applicant before: China National Petroleum Corporation Applicant before: China Petroleum and Natural Gas Pipeline Bureau Applicant before: Tianjin Dagang Oilfield Group Engineering Construction Co., Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151216 |