CN108246470A - From the beneficiation method of the high whiteness concentrate powder of complicated formula kaolin ore raw material system - Google Patents
From the beneficiation method of the high whiteness concentrate powder of complicated formula kaolin ore raw material system Download PDFInfo
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- CN108246470A CN108246470A CN201810092603.7A CN201810092603A CN108246470A CN 108246470 A CN108246470 A CN 108246470A CN 201810092603 A CN201810092603 A CN 201810092603A CN 108246470 A CN108246470 A CN 108246470A
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- China
- Prior art keywords
- kaolin
- concentrate powder
- raw material
- high whiteness
- mud
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- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 title claims abstract description 194
- 239000005995 Aluminium silicate Substances 0.000 title claims abstract description 189
- 235000012211 aluminium silicate Nutrition 0.000 title claims abstract description 189
- 239000000843 powder Substances 0.000 title claims abstract description 88
- 239000012141 concentrate Substances 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 58
- 239000002994 raw material Substances 0.000 title claims abstract description 47
- 238000012216 screening Methods 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 13
- 239000011707 mineral Substances 0.000 claims abstract description 13
- 238000000465 moulding Methods 0.000 claims abstract description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000012535 impurity Substances 0.000 claims abstract description 10
- 239000010433 feldspar Substances 0.000 claims abstract description 9
- 238000007885 magnetic separation Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 239000010453 quartz Substances 0.000 claims abstract description 9
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000000227 grinding Methods 0.000 claims abstract description 8
- 229910052742 iron Inorganic materials 0.000 claims abstract description 8
- 229910052901 montmorillonite Inorganic materials 0.000 claims abstract description 8
- 238000005406 washing Methods 0.000 claims abstract description 8
- 229910052634 enstatite Inorganic materials 0.000 claims abstract description 7
- BBCCCLINBSELLX-UHFFFAOYSA-N magnesium;dihydroxy(oxo)silane Chemical compound [Mg+2].O[Si](O)=O BBCCCLINBSELLX-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims description 44
- 239000000463 material Substances 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- 238000001125 extrusion Methods 0.000 claims description 15
- 238000009740 moulding (composite fabrication) Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 10
- 239000002002 slurry Substances 0.000 claims description 10
- 238000001816 cooling Methods 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 7
- 239000010985 leather Substances 0.000 claims description 4
- 238000003837 high-temperature calcination Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 208000032765 Device extrusion Diseases 0.000 claims description 2
- 238000007605 air drying Methods 0.000 claims description 2
- 239000002689 soil Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000004575 stone Substances 0.000 abstract description 7
- 239000000047 product Substances 0.000 description 14
- 238000001354 calcination Methods 0.000 description 13
- 239000012065 filter cake Substances 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 229910052622 kaolinite Inorganic materials 0.000 description 5
- 239000002734 clay mineral Substances 0.000 description 4
- 238000005282 brightening Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000002028 Biomass Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- 235000012222 talc Nutrition 0.000 description 2
- -1 weaving Substances 0.000 description 2
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910001608 iron mineral Inorganic materials 0.000 description 1
- LIKBJVNGSGBSGK-UHFFFAOYSA-N iron(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Fe+3].[Fe+3] LIKBJVNGSGBSGK-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 210000001161 mammalian embryo Anatomy 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 229910052615 phyllosilicate Inorganic materials 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- CHWRSCGUEQEHOH-UHFFFAOYSA-N potassium oxide Chemical compound [O-2].[K+].[K+] CHWRSCGUEQEHOH-UHFFFAOYSA-N 0.000 description 1
- 229910001950 potassium oxide Inorganic materials 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000007363 ring formation reaction Methods 0.000 description 1
- 229910021646 siderite Inorganic materials 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- 229910001948 sodium oxide Inorganic materials 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 239000000037 vitreous enamel Substances 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000005550 wet granulation Methods 0.000 description 1
- 230000002087 whitening effect Effects 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/10—Temperature; Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
A kind of beneficiation method from the high whiteness concentrate powder of complicated formula kaolin ore raw material system disclosed by the invention, using complicated formula kaolin ore or kaolin stone as raw material, the complexity formula kaolin ore raw materials is kandite, enstatite, montmorillonite and quartz, feldspar, any one the above or several mixing of hydromica and iron-bearing mineral ore deposit, through broken, removal of impurities, ore grinding, washing, screening, magnetic separation is prepared into kaolin concentrate powder, high whiteness kaolin concentrate powder is prepared using working procedures such as moldings, it is simple for process, raw material sources are wide, production cost is low, the good product quality of production.
Description
Technical field：It is particularly a kind of from multiple the present invention relates to a kind of method that concentrate powder is prepared from kaolin ore raw material
The beneficiation method of the miscellaneous high whiteness concentrate powder of formula kaolin ore raw material system.
Background technology：
Kaolin mineral belongs to phyllosilicate, and crystal is mainly made of oxygen-octahedron and the hydrogen-oxygen octahedron that continues；
The mineral that kaolin is included in nature are broadly divided into clay mineral and non-clay mineral.Its CLAY MINERALS AND THEIR SIGNIFICANCE is mainly wrapped
Containing kandite and a small amount of montmorillonite, mica and chlorite；Non-clay mineral is mainly comprising feldspar, quartzy aquation
Object more also contains iron mineral such as bloodstone, siderite, limonite etc..Good kaolin is in pure white fine and smooth, mollisol
Shape has the physicochemical properties such as good plasticity and fire resistance.Its mineralogical composition mainly by kaolinite, galapectite, hydromica, she
The mineral compositions such as sharp stone, montmorillonite and quartz, feldspar.Kaolin purposes is very extensive, is mainly used for papermaking, ceramics and fire resisting
Material and coating, gum filler, frit for porcelain enamel and white cement raw material, on a small quantity for plastics, paint, pigment, grinding wheel, pencil, day
It applies some make up, soap, pesticide, medicine, weaving, oil, chemical industry, building materials, the whiteness after the calcining of the industrial departments such as national defence are more attached most importance to
Will, the calcining more high then quality of whiteness is better；Whiteness can be measured with leucometer.
Its raw ore of kaolin clay for ceramic ore deposit is the metal itself contained by 1 years sedimentary evolutions in mining area
Element also can with temperature, rainwater, wash away, the factors such as weathering occur variation, and the kaolin starting material of high-quality are needed just must
The techniques such as dry, screening and calcining need be passed through to be purified, remove the impurity in ore deposit, and then reach production high grade kaolinite ore deposit
The purpose of powder.The method of existing generally existing is by raw ore milling embryo processed, and pressure brick drying is fired, firing temperature is 1200 into kiln
It spends between one 1350 degree, since kiln need to be recycled to wind, burning time is long, and can be due to having vulcanization reaction iron molecule after burning down
Also it can be adhered on the product of talcum miberal powder, so as to which the whiteness of kaolin miberal powder finished product can be reduced, make product to downstream producer, shadow
The product whiteness for ringing the production of downstream producer has different degrees of decline.Also product quality is significantly impacted.
But above-mentioned existing kaolin ore raw material is used to brighten kaolin concentrate powder with prepared by technique productions, when due to
Raw material sources are narrow, and raw material sources are single, and feed kaolin mineral aggregate is caused to be substantially increased due to purchase cost, so as to accordingly increase
Prepare using kaolin or kaolin ore as raw material the production cost of high whiteness concentrate powder；Second is that do not have also with complicated formula at present
Kaolin ore is raw material, and the complexity formula talc ore raw material refers to for the mineral such as enstatite, montmorillonite and quartz, feldspar
The mixing of any one above or several raw ore of ore deposit, prepares high whiteness concentrate powder.Since raw material sources are complicated and its composition
It is uncertain, thus be difficult to prepare high whiteness concentrate powder using existing process or cry kaolin high whiteness concentrate powder.Cause
How this is prepared the concentrate powder of high whiteness or be kaolinic high whiteness concentrate using existing complicated formula kaolin ore resource
Powder accomplishes efficiently using for resource, and realization is turned waste into wealth, the requirement of cycle development；The height of the high whiteness for the high quality selected
The product of ridge soil concentrate powder.
Invention content：It is an object of the invention to overcome the deficiencies in the prior art, provide a kind of from complicated formula kaolin ore
The beneficiation method of the high whiteness concentrate powder of raw material system.Using complicated formula kaolin or kaolin ore as raw material, through broken, removal of impurities, ore grinding,
Washing, screening, magnetic separation prepare high whiteness kaolin concentrate powder, simple for process, raw material sources using working procedures such as moldings
Extensively, production cost is low, the good product quality of production.
A kind of beneficiation method from the high whiteness concentrate powder of complicated formula kaolin ore raw material system disclosed by the invention, with complicated formula
Kaolin ore or kaolin stone are raw material, and the complexity formula kaolin ore raw materials is kandite, enstatite, illiteracy take off
Any one the above or several mixing of stone and quartz, feldspar, hydromica and iron-bearing mineral ore deposit, through broken, removal of impurities, ore grinding,
Washing, screening, magnetic separation are prepared into kaolin concentrate powder, further include following method and step：
1）Kaolin concentrate powder and water are stirred and kaolin concentrate powder slurry are made by molding procedure, by kaolin concentrate powder
Kaolin mud cake is made with filter-pressing device press filtration in slurry, practices through carrying out pugging processing in conveying device to pugging device for kaolin
Mud by kaolin pugging through extrusion forming device extrusion process, is made as kaolin mud item；
2）Drying process by kaolin mud material by distribution device, is distributed on the dry net band in drying device, controls
Kaolin mud item, to convection gradient level contact drying, is dried kaolin mud with the dry heat the air contrary in drying device
Item；
3）Process is sieved, by 2）It walks dried kaolin mud item and carries out screening process removal molecule material using screening plant,
Screening dried kaolin pug is made；Dried kaolin pug will be sieved after high-temperature calcination processing, enter back into cooling device
In, it crushes, be sieved again after cooling, packaging obtains high whiteness concentrate powder.
The beneficiation method from the high whiteness concentrate powder of complicated formula kaolin ore raw material system is 1）Molding procedure is by press filtration
It is kaolin powder pugging, then kaolin powder is practiced that kaolin mud cake, which is made, and is delivered to mixing in vacuum deairing machine through constant feeder
Mud is placed in extruder grain in the de-airing extruder of extrusion forming device and is shaped to kaolin mud item.
The beneficiation method from the high whiteness concentrate powder of complicated formula kaolin ore raw material system, it is preferred that be described 1）Molding
The extrusion forming device of process is QZL50 type de-airing extruder extrusion formings, and the power for controlling de-airing extruder is 40-
80kw。
Preferably, it is 2）Drying process, the distribution device are by upper and lower to wave leather belt material distributing device, the dry net band
Height gradient level is divided into one to five layer of dry net band；The kaolin mud material is controlled in defeated on one to five layer of dry net band
Overturning constantly occurs when sending dry and is dried by dry heat the air dry for dried kaolin mud item.
The water content that kaolin mud cake is made is 20-30Wt%；The diameter of phi for controlling kaolin mud item is 18-
20mm。
It is further preferred that it is described 2）Drying process is to control the dry heat the air in the air inlet in drying device
Temperature is more than or equal to 300 DEG C, and leaving air temp is less than or equal to 100 DEG C after drying；Drying time is controlled as 40-55 points
Clock.
It is furthermore preferred that it is described 2）Drying process is to control the width 1.5-1.8m of dry net band, and control is placed in dry net
Stacking thickness≤the 50mm for dried material kaolin mud item taken.
It is further preferred that it is the water content≤5Wt% for controlling dried kaolin mud item.
The present invention is with from the beneficiation method of the high whiteness concentrate powder of complicated formula kaolin ore raw material system, process for producing stream
Journey is as follows：Complicated formula kaolin ore raw materials, through crush, ore grinding, removal of impurities, wash, smash the processes such as slurry, magnetic separation be made kaolin essence
Miberal powder → molding → drying → screening, calcining → concentration turn to kaolin ore slurry → press filtration → filter cake, homogenizing adjust moisture →
Filter cake crushes → squeezes out molding → mesh bag or mesh belt dry → screening, broken powder → calcining → high whiteness of cooling kaolin
Concentrate powder packs to obtain product.
Description of the process：The broken powder sieved after mesh bag drying or mesh belt dry, returns again to filter cake and homogenizing
The process for adjusting moisture is further homogenized recycling, while by generated water after press filtration and mesh belt dry and steam together again
Circulation and stress recycles, and so as to fulfill circular economy, environmental friendly regenerated production utilizes.
A kind of beneficiation method for making high whiteness concentrate powder of the present invention is using the complicated formula kaolin ore raw materials as kaolinite
Any one is above or several for stone race mineral, enstatite, montmorillonite and quartz, feldspar, hydromica and iron-bearing mineral ore deposit
Mixing prepares kaolin concentrate powder, then by kaolin concentrate using ore dressing, broken, removal of impurities, milling, washing, screening, magnetic separation
Powder carries out calcine technology, and biomass brightening agent is added in calcination process.Reached by calcining and effect is brightened to kaolin miberal powder
Fruit, whitening effect are compared at 3 one 5 degree compared with raw ore whiteness.
On the other hand, the method for the present invention is by the way that the water content of the filter cake after press filtration is controlled to make in 20-30% in formative stage
It obtains filter cake wet granulation to be easier, and increases vacuum extractor and work i.e. in extrusion forming using extrusion forming device is vacuumized
Sequence, mud porosity after molding is low, intensity is high, high to the serious forgiveness of moulding moisture control, and advantageously reduces subsequent calcination
When the time, so as to which the compactness of kaolin mud item be greatly improved, improve high whiteness kaolin powdered ore quality.Second is that make
It is dried with static multilayer net-bag type, the breakage rate of dry products is low in drying process, and drying efficiency is high.
Here is the high whiteness kaolin from the method preparation of the high whiteness kaolin miberal powder of complicated formula kaolin ore raw material system
Miberal powder or the examining report for being the high whiteness concentrate powder product of kaolin, table 1
Sample ID calcines high whiteness kaolin miberal powder or cries kaolin ore high whiteness concentrate powder,
Experimental situation, 25 DEG C,
Sample item, conventional analysis,
Detection foundation, GB/T2578-2002,
Detecting instrument, GKF-Y6400A whiteness instrument,
Table 1
| Detection project | Present invention calcining, constituent content（%） |
| Silica | 52.02 |
| Alundum (Al2O3) | 3.23 |
| Di-iron trioxide | 0.96 |
| Titanium dioxide | 0.07 |
| Calcium oxide | 0.6 |
| Magnesia | 20.53 |
| Potassium oxide | 0.14 |
| Sodium oxide molybdena | 0.14 |
| Loss on ignition | 0.6 |
| Burn whiteness | 55.1 |
| Firing temperature | 1100 |
| Shrinking percentage | 3.5 |
Explanation：Disclosed data are detected from upper table 1 to can be seen that using high whiteness kaolin miberal powder product produced by the invention
Whiteness increases by 5.2, and shrinking percentage is also high.
Specific embodiment：The present invention is described in further detail With reference to embodiment.
It will be helpful to further understand the present invention, but do not limit present disclosure by following embodiments.In embodiment
Unless otherwise stated remaining undeclared part each means quality or mass ratio.High whiteness kaolin miberal powder described in present specification with
High whiteness kaolin powder is equivalent in meaning；Mud item and kaolin mud item, mud cake and kaolin mud cake are equivalent in meaning, mesh bag drying and net
Band drying is equivalent in meaning；Heretofore described high whiteness concentrate powder refers to high whiteness kaolin concentrate powder or is kaolin Gao Bai
Spend concentrate powder.
The present invention discloses a kind of method from the high whiteness kaolin concentrate powder of complicated formula kaolin ore raw material system, with complicated formula
Kaolin ore is raw material, and complicated formula kaolin ore raw materials described in the complexity formula is kandite, enstatite, illiteracy
De- stone and quartz, feldspar, hydromica and iron-bearing mineral ore deposit any one above or several mixing, through broken, removal of impurities, mill
Ore deposit, washing, screening, magnetic separation are prepared into kaolin concentrate powder, it is characterized in that further including following method and step：
1）Kaolin concentrate powder and water are stirred and kaolin concentrate powder slurry are made by molding procedure, by kaolin concentrate powder
Kaolin mud cake is made with filter-pressing device press filtration in slurry, practices through carrying out pugging processing in conveying device to pugging device for kaolin
Mud, selection extrusion forming device are QZL50 type de-airing extruder extrusion formings, and the power for controlling de-airing extruder is 40-80kw；
Kaolin mud item is made as, controls a length of 20-30mm of kaolin mud item；The water content that kaolin mud cake is made is 20-
30Wt%；The diameter of phi for controlling kaolin mud item is 18-20mm.
2）Drying process by kaolin mud material by distribution device, is distributed on the dry net band in drying device,
Control kaolin mud item with the dry heat the air contrary in drying device to convection gradient level contact drying, for dried kaolin
Mud item；The distribution device is to be divided into one to five by height gradient level up and down to wave leather belt material distributing device, the dry net band
Layer dry net band；Control the kaolin mud material that overturning constantly occurs simultaneously when conveying dry on one to five layer of dry net band
It is dry for dried kaolin mud item by dry heat the air drying.The dry heat the air is controlled in the inlet air temperature in drying device
To be greater than or equal to 300 DEG C, leaving air temp is less than or equal to 100 DEG C after drying；It is 40-55 minutes to control drying time；Control
The width 1.5-1.8m of dry net band processed, control are placed in the stacking thickness for dried material kaolin mud item on dry net band
≤50mm。
3）Process is sieved, by 2）It walks dried kaolin mud item and carries out screening process removal finely ground particles using screening plant
Screening dried kaolin pug is made in material；Dried kaolin pug will be sieved after high-temperature calcination processing, enter back into cooling dress
It in putting, crushes, be sieved again after cooling, packaging obtains high whiteness kaolin miberal powder.The high whiteness concentrate powder of kaolin obtained.With
With subject to the detection of Blue Whiteness instrument after cooling.
Embodiment 1
The complicated formula kaolin ore raw material that the embodiment of the present invention uses is through Preliminary detection its essential element component detected value, i.e. raw ore
Stone numerical tabular 2：
| Each element | Whiteness（Refer to original ore powder） | Al | Si | Fe | Mg | Ca | K | Na | Ti |
| 50.3 | 3.46 | 52.47 | 1.19 | 20.69 | 0.8 | 0.16 | 0.18 | 0.09 |
Explanation：The detection numerical value that numerical value is each main metal element in complicated formula kaolin ore raw material is surveyed in upper table 2.Prepare and
Into product in and each metallic element be in the form of its oxide carry out.
A kind of method from the complicated high whiteness concentrate powder of formula kaolin ore raw material kaolin of the invention, with complicated formula kaolinite
Native ore is raw material, the complexity formula kaolin ore raw materials is kandite, enstatite, montmorillonite and quartz,
The mixing of feldspar, hydromica and arbitrary two kinds of iron-bearing mineral ore deposit, through broken, removal of impurities, ore grinding, washing, screening, magnetic separation, milling is extremely
- 30 mesh of 10 mesh is prepared into kaolin concentrate powder, kaolin concentrate powder obtained is made kaolin concentrate powder slurry, by kaolin
Concentrate powder slurry further concentrates homogenizing processing as ore pulp, and it is kaolin mud cake that ore pulp press filtration is made filter cake, press filtration
Water recycling, kaolin mud cake is homogenized adjusting moisture again, until the water content of kaolin mud cake be 20-30Wt%；By kaolin mud
Cake is delivered to constant feeder on belt conveyor or belt feeder after crushing, then uniform by the Belt Conveying of belt feeder
It is delivered to vacuum deairing machine to be kneaded, is kaolin powder pugging, the pugging of kaolin powder is placed in specifications and models as QZL50 again
Type, power are the de-airing extruder extrusion forming of 40-80kw.Extrusion forming is the kaolin mud that diameter diameter of phi is 18-20mm
Item, kaolin mud item are cut to the kaolin mud item of a length of 20-30mm with blank cutter again；General control one hour is squeezed into
Type amount is 11-15 tons or so；Manufactured kaolin mud item finally is delivered to drying process through belt conveyor to be dried
Processing.
Drying process is that above-mentioned kaolin mud material is waved leather belt material distributing device by distribution device, is distributed in flat
It is laid on the dry net band of top layer, calls guipure in the following text, guipure is driven by power motor at the uniform velocity to be entered in the drying machine of drying device
Portion, kaolin mud material successively from top to down by first layer guipure drop down onto second layer guipure and it is corresponding third and fourth, five layers of net
Band, during kaolin mud material is fallen, kaolin mud material is overturn, kaolin mud material heating surface hair
Changing, drying are more uniformly distributed.Dry heat the air contrary in kaolin mud material and drying device is controlled to convection gradient
Level contact drying, i.e. hot-air are moved upwards by lowest level is material bed, and high temperature low temperature gas dries latter stage with lowest level first
Kaolin mud material contacts, and kaolin mud material is heated upwards successively, and it is inverse to be contacted with kaolin mud material
Stream operation, this ensure that higher dry tenacity, the moisture content in material after being heated is vaporizated into water vapour and is mixed into air
Humid air is discharged by exhaust fan, and kaolin mud material is dried kaolin mud item after drying.
The screening stage is the dried kaolin mud item that will be transported out from the dry net band of mesh bag drying device, into
Screening process, the screened little particle and powder screened out in dried kaolin billot of dried kaolin mud item are first carried out before row calcining
Body reduces the situation of dried kaolin powder ring formation in sintering process in kiln, can increase substantially dried kaolin powder
The quality stability of product sintering, so as to improve the whiteness of kaolin miberal powder.
Calcination stage is finally entered, in calcination process, can also add in brightening agent, cools down, obtains the high whiteness ore deposit of kaolin
Powder；The high whiteness concentrate powder finished product of kaolin, whiteness increase 3-5 degree and either add in biomass material as brightening agent.
Embodiment 2
Described in following embodiments in technical solution, except it is stated that in addition to part, remaining undeclared part is and specific embodiment
And embodiment 1 is identical.
The present embodiment is from the method for the high whiteness kaolin concentrate powder of complicated formula kaolin ore raw material system, the complexity formula kaolinite
The mixing for the arbitrary proportion that native ore raw materials is kandite, montmorillonite and quartz, iron-bearing mineral ore deposit is several, through broken
Broken, removal of impurities, ore grinding, washing, screening, magnetic separation are milled and are prepared into kaolin concentrate powder to -20 mesh of 0 mesh.Control kaolin mud cake
Water content is 21Wt%, i.e., similary by water content of the kaolin mud cake after kaolin mud item is made in pugging processing and extrusion forming
In 21Wt% or so, moisture content through drying process treated dried kaolin mud item or water content is as≤5Wt%, same to time control
The bulk specific weight of dried kaolin mud item processed is in 1.15-1.25 tons/m3Dried material kaolin mud heap thickness when control is dry
Spend≤50 mm；It is 1.6m to control width during mesh belt dry；300 DEG C of inlet air temperature, dry leaving air temp are dried when control is dry
Less than or equal to 100 DEG C；Dried dried kaolin mud item enters calcination stage.
The foregoing is merely the preferred embodiments of the invention oneself, but not intended to limit the scope of the present invention, all ripe
Skilled person is known, with the principle of the present invention and technical characteristic, the various changes made and decoration, should all be covered by this right
Within the protection category that claim is defined.
Claims (8)
1. a kind of beneficiation method from the high whiteness concentrate powder of complicated formula kaolin ore raw material system, using complicated formula kaolin ore as original
Material, the complexity formula kaolin ore raw materials is kandite, enstatite, montmorillonite and quartz, feldspar, hydromica
And iron-bearing mineral ore deposit any one above or several mixing, it is prepared into height through broken, removal of impurities, ore grinding, washing, screening, magnetic separation
Ridge soil concentrate powder, it is characterized in that further including following method and step：
1）Kaolin concentrate powder and water are stirred and kaolin concentrate powder slurry are made by molding procedure, by kaolin concentrate powder
Kaolin mud cake is made with filter-pressing device press filtration in slurry, practices through carrying out pugging processing in conveying device to pugging device for kaolin
Mud by kaolin pugging through extrusion forming device extrusion process, is made as kaolin mud item；
2）Drying process by kaolin mud material by distribution device, is distributed on the dry net band in drying device, controls
Kaolin mud item, to convection gradient level contact drying, is dried kaolin mud with the dry heat the air contrary in drying device
Item；
3）Process is sieved, by 2）It walks dried kaolin mud item and carries out screening process removal molecule material using screening plant,
Screening dried kaolin pug is made；Dried kaolin pug will be sieved after high-temperature calcination processing, enter back into cooling device
In, it crushes, be sieved again after cooling, packaging obtains high whiteness concentrate powder.
2. according to claim 1 from the beneficiation method of the high whiteness concentrate powder of complicated formula kaolin ore raw material system, it is characterized in that
1）Molding procedure is press filtration is made kaolin mud cake to be delivered in vacuum deairing machine through constant feeder to be kneaded as kaolin powder
Pugging, then kaolin powder pugging is placed in extruder grain in the de-airing extruder of extrusion forming device and is shaped to kaolin mud item.
3. the beneficiation method according to claim 1 or claim 2 from the high whiteness concentrate powder of complicated formula kaolin ore raw material system, feature
It is described 1）The extrusion forming device of molding procedure is QZL50 type de-airing extruder extrusion formings, controls de-airing extruder
Power be 40-80kw.
4. according to claim 1 from the beneficiation method of the high whiteness concentrate powder of complicated formula kaolin ore raw material system, it is characterized in that
2）Drying process, the distribution device is waves leather belt material distributing device, and the dry net band is is divided by height gradient level up and down
One to five layer of dry net band；The kaolin mud material is controlled constantly to occur when conveying dry on one to five layer of dry net band
It overturns and dry for dried kaolin mud item by dry heat the air drying.
5. the beneficiation method according to claim 1 or claim 2 from the high whiteness concentrate powder of complicated formula kaolin ore raw material system, feature
Be the water content that kaolin mud cake is made be 20-30Wt%；The diameter of phi for controlling kaolin mud item is 18-20mm.
6. from the beneficiation method of the high whiteness concentrate powder of complicated formula kaolin ore raw material system, feature according to claim 1 or 4
It is described 2）Drying process be control the dry heat the air in the inlet air temperature in drying device be more than or equal to 300 DEG C,
Leaving air temp is less than or equal to 100 DEG C after drying；It is 40-55 minutes to control drying time.
7. from the beneficiation method of the high whiteness concentrate powder of complicated formula kaolin ore raw material system, feature according to claim 1 or 4
It is described 2）Drying process is to control the width 1.5-1.8m of dry net band, and control is placed on dry net band and is used for dried object
Expect stacking thickness≤50mm of kaolin mud item.
8. from the beneficiation method of the high whiteness concentrate powder of complicated formula kaolin ore raw material system, feature according to claim 1 or 4
It is the water content≤5Wt% for controlling dried kaolin mud item.
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| CN113457809A (en) * | 2021-05-18 | 2021-10-01 | 深圳市石能新型环保材料有限公司 | Calcium-containing environment-friendly material manufacturing process and device applied to printed packaging |
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