CN104311121B - A kind of potassium chloride surface light ceramic helping sintering and preparation method thereof - Google Patents
A kind of potassium chloride surface light ceramic helping sintering and preparation method thereof Download PDFInfo
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Abstract
The present invention relates to a kind of potassium chloride surface light ceramic helping sintering and preparation method thereof, the Klorvess Liquid of 5%～25% is sprayed into by substep, the potassium ion being dissolved in the water time dry is enriched in raw material ball surface crust along with moisture diffuses to the surface, in sintering process, the potassium ion of superficial layer and other substance reaction form meltable material, play the effect of sintering aid, in the following sintering aid of superficial layer of raw material ball, potassium content is the lowest, the haydite burnt till under superficial layer sintering temperature, water absorption rate is less, but the un-sintered density of the following nucleus of superficial layer is relatively low, finally give water absorption rate little while the low light ceramic of global density.The present invention solves haydite and had both required that water absorption rate was little, intensity is high, requires again the problem that unit weight is little.Potassium chloride surface of the present invention helps the preparation method technique of the light ceramic of sintering simply, operates safety, can be mass-produced, and low cost.
Description
Technical field
The invention belongs to new building material technical field, be specifically related to a kind of potassium chloride surface and help the lightweight of sintering
Haydite and preparation method thereof.
Background technology
Haydite is with clay, and industrial residue, waste material, mine tailing, low grade shale etc. are raw material, adds a small amount of viscous
Knot agent and additive, make lightweight aggregate through traditional handicraft processes such as mixing, balling-up high temperature sinterings, its tool
Have that unit weight is light, intensity is high, thermal conductivity is low, refractoriness is higher, heat-preserving anti-freezing is anticorrosive, shock resistance, antidetonation,
Wear-resisting without features such as radiations (without nuisance), it is the green construction material of a kind of high-quality.Due to haydite
Water absorbing properties has had a strong impact on workability and the cementing power of haydite concrete, so needing to add easy-sintering ore deposit
The sintering aid such as thing, waste residue improves the sintering degree of haydite, reduces the water absorption rate of haydite.Sintering aid with
Raw material mixes, and reduces the sintering temperature of haydite, makes haydite fine and close, increases haydite proportion simultaneously,
Reduce the heat-insulating sound-insulating effect of haydite and limit the use of haydite.Although sintering-expanded haydite solves haydite
Water absorption rate and the problem of heat-insulating sound-insulating, but require that its raw materials for production must be to burn swollen raw material, this raw material
In nature seldom, it is hollow sphere that is the most expanded and that formed that another further aspect haydite produces, energy consumption
Higher, haydite intensity is the highest, the performance of raw material ensure properties of product and size, technique difficulty controls.
Summary of the invention
It is an object of the invention to overcome shortcoming present in above-mentioned prior art, it is provided that a kind of potassium chloride surface
Light ceramic helping sintering and preparation method thereof, has surface densified sintering product, and global density is low, and water absorption rate is little,
Intensity is high, the simple advantage of preparation technology.
For achieving the above object, a kind of potassium chloride surface helps the light ceramic preparation method of sintering, below employing
Technical scheme: comprise the following steps:
1) take raw material by percentage to the quality: the flyash of 0%-65%, the clay of 35%-95%, 0～65%
Shraff and 0～the clay mine tailing of 65%；Carry out ball milling after being mixed by raw material, be dried and after finely ground process
Obtain blank standby；Wherein granularity accounts for more than the 90% of blank gross mass less than the blank of 65 μm；
2) by step 1) blank prepared and pore former be with mass ratio 100:(5～20) mixing, mixed
Material；
3) by step 2) compound prepared carries out balling-up and processes and obtain raw material ball, and will in balling-up processes
Concentration be 5%～25% potassium chloride solution be sprayed onto on compound, it is thus achieved that raw material ball in potassium chloride solution
Content account for the 8～15% of raw material ball gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains carries out burning till process 3～5 hours at 900～1200 DEG C,
Rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
Described step 2) in pore former be coal dust, granularity be less than 0.125mm.
Step 3) in potassium chloride solution be intermittent spray.
Described step 3) in globulation, add compound according to balling-up situation with batch (-type).
Described step 3) in balling-up process equipment be sugar coating machine.
Described step 5) in burn till the equipment of process be rotary kiln.
A kind of potassium chloride surface helps the light ceramic of sintering: its surface densified sintering product, inside is un-sintered in porous
Shape, water absorption rate is less than 5%, and unit weight is 867.39Kg/m3～1402.78Kg/m3。
A kind of potassium chloride surface helps the light ceramic preparation method of sintering to have following beneficial effect: compare
Prior art, by being added with the form sprayed by potassium chloride sintering aid, and Klorvess Liquid concentration is
5%～25%, potassium presented in potassium ion in solution, the potassium that is dissolved in the water in humidogene pellet when being dried
Ion is with moisture to raw material ball diffusion into the surface, and after moisture is evaporated, potassium ion is enriched in raw material ball surface crust,
In sintering process, the potassium ion of superficial layer and other substance reaction form meltable material, melt at 900～1200 DEG C,
Promote superficial layer sintering, play the effect of sintering aid.In the following sintering aid of superficial layer of raw material ball potassium from
Sub-content is low, the haydite burnt till under superficial layer sintering temperature, and water absorption rate is less, but the following core of superficial layer
The un-sintered density in region is relatively low, finally give water absorption rate little while the low potassium chloride surface of global density help sintering
Light ceramic.The sintering aid potassium chloride low cost used, easy-to-control added amount.Potassium chloride of the present invention
It is simple that surface helps the preparation method of the light ceramic of sintering to have technique, operates safety, can be mass-produced,
And low cost and other advantages.
A kind of potassium chloride surface prepared helps the light ceramic of sintering, surface densified sintering product, internal un-sintered in
Cellular, global density is low；Haydite intensity is high, and unit weight is little, has good heat-insulating sound-insulating effect.This
Potassium ion radius in bright prepared potassium chloride sintering aid is less, helps agglomeration the most obvious.
Accompanying drawing explanation
Fig. 1 is the process chart of the inventive method；
Fig. 2 is the haydite section micro-structure diagram prepared by embodiment 12.
Detailed description of the invention
Below in conjunction with the accompanying drawings, the invention will be further described.
Seeing Fig. 1 and 2, a kind of potassium chloride surface helps the light ceramic preparation method of sintering to comprise the following steps:
1) take raw material by percentage to the quality: the flyash of 0%-65%, the clay of 35%-95%, 0～65%
Shraff and 0～the clay mine tailing of 65%；Carry out ball milling after being mixed by raw material, be dried and after finely ground process
Obtain blank standby；Wherein granularity accounts for more than the 90% of blank gross mass less than the blank of 65 μm；
2) by step 1) blank prepared and the granularity pore former less than 0.125mm be with mass ratio 100:
(5～20) mix, and obtain compound；
3) by step 2) compound prepared puts into and carries out balling-up in sugar coating machine and process and obtain raw material ball, balling-up
During, add compound according to balling-up situation with batch (-type), and be 5%～25% by concentration in balling-up processes
Potassium chloride solution batch (-type) be sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution account for
The 8～15% of raw material ball gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains puts into and carries out in rotary kiln burning till place at 900～1200 DEG C
Managing 3～5 hours, rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
A kind of potassium chloride surface helps the light ceramic of sintering, its surface densified sintering product, internal un-sintered in cellular,
Water absorption rate is less than 5%, and unit weight is 867.39～1402.78Kg/m3。
Described pore former is coal dust.
Table 1 is interpolation content and firing time, temperature and the system of each component in embodiment 1 to embodiment 12
Obtain water absorption rate and the unit weight of material.
Table 1
Embodiment 1:
1) raw material is taken by percentage to the quality: the flyash of 65% and the clay of 35%；Raw material is mixed laggard
Blank is obtained standby after row ball milling, dry and finely ground process；Wherein granularity accounts for blank less than the blank of 65 μm
More than the 90% of gross mass；
2) by step 1) blank prepared and the granularity pore former less than 0.125mm be with mass ratio 100:5
Mixing, obtains compound；
3) by step 2) compound prepared puts into and carries out balling-up in sugar coating machine and process and obtain raw material ball, balling-up
During, add compound according to balling-up situation with batch (-type), and be the chlorine of 5% by concentration in balling-up processes
Change aqueous solutions of potassium batch (-type) to be sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution account for raw material
The 8% of ball gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains puts into and carries out in rotary kiln burning till process 3 at 1200 DEG C
Hour, rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
Water absorption rate 2.92%, unit weight is 1203.27Kg/m3。
Embodiment 2:
1) raw material is taken by percentage to the quality: the clay of 35% and the mixture of the shraff of 65%；By former
Carry out ball milling after material mixing, be dried and after finely ground process, obtain blank standby；Wherein granularity is less than 65 μm
Blank accounts for more than the 90% of blank gross mass；
2) by step 1) blank prepared and the granularity pore former less than 0.125mm be with mass ratio 100:6
Mixing, obtains compound；
3) by step 2) compound prepared puts into and carries out balling-up in sugar coating machine and process and obtain raw material ball, balling-up
During, add compound according to balling-up situation with batch (-type), and be the chlorine of 8% by concentration in balling-up processes
Change aqueous solutions of potassium batch (-type) to be sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution account for raw material
The 9% of ball gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains puts into and carries out in rotary kiln burning till process 3.5 at 1150 DEG C
Hour, rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
Water absorption rate 3.81%, unit weight is 1256.71Kg/m3。
Embodiment 3:
1) raw material is taken by percentage to the quality: the clay of 35% and the mixture of the clay mine tailing of 65%；By former
Carry out ball milling after material mixing, be dried and after finely ground process, obtain blank standby；Wherein granularity is less than 65 μm
Blank accounts for more than the 90% of blank gross mass；
2) by step 1) blank prepared and the granularity pore former less than 0.125mm be with mass ratio 100:7
Mixing, obtains compound；
3) by step 2) compound prepared puts into and carries out balling-up in sugar coating machine and process and obtain raw material ball, balling-up
During, add compound according to balling-up situation with batch (-type), and be 10% by concentration in balling-up processes
Potassium chloride solution batch (-type) is sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution account for life
The 10% of pellet gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains puts into and carries out in rotary kiln burning till process 4 at 1100 DEG C
Hour, rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
Water absorption rate 3.46%, unit weight is 1186.24Kg/m3。
Embodiment 4:
1) raw material is taken by percentage to the quality: the flyash of 20%, the clay of 65% and the shraff of 15%
Mixture；Carry out ball milling after being mixed by raw material, be dried and after finely ground process, obtain blank standby；Wherein particle
Degree accounts for more than the 90% of blank gross mass less than the blank of 65 μm；
2) by step 1) blank prepared and the granularity pore former less than 0.125mm be with mass ratio 100:9
Mixing, obtains compound；
3) by step 2) compound prepared puts into and carries out balling-up in sugar coating machine and process and obtain raw material ball, balling-up
During, add compound according to balling-up situation with batch (-type), and be 13% by concentration in balling-up processes
Potassium chloride solution batch (-type) is sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution account for life
The 11% of pellet gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains puts into and carries out in rotary kiln burning till process 4.5 at 1000 DEG C
Hour, rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
Water absorption rate 4.76%, unit weight is 1059.5Kg/m3。
Embodiment 5:
1) raw material is taken by percentage to the quality: the clay tail of the clay of 20%, the shraff of 40% and 40%
The mixture in ore deposit；Carry out ball milling after being mixed by raw material, be dried and after finely ground process, obtain blank standby；Wherein
Granularity accounts for more than the 90% of blank gross mass less than the blank of 65 μm；
2) by step 1) blank prepared and the granularity pore former less than 0.125mm be with mass ratio 100:
10 mixing, obtain compound；
3) by step 2) compound prepared puts into and carries out balling-up in sugar coating machine and process and obtain raw material ball, balling-up
During, add compound according to balling-up situation with batch (-type), and be 15% by concentration in balling-up processes
Potassium chloride solution batch (-type) is sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution account for life
The 12% of pellet gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains puts into and carries out in rotary kiln burning till process 5 at 900 DEG C
Hour, rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
Water absorption rate 4.52%, unit weight is 903.48Kg/m3。
Embodiment 6:
1) raw material is taken by percentage to the quality: the clay mine tailing of the flyash of 30%, the clay of 35% and 35%
Mixture；Carry out ball milling after being mixed by raw material, be dried and after finely ground process, obtain blank standby；Wherein particle
Degree accounts for more than the 90% of blank gross mass less than the blank of 65 μm；
2) by step 1) blank prepared and the granularity pore former less than 0.125mm be with mass ratio 100:
13 mixing, obtain compound；
3) by step 2) compound prepared puts into and carries out balling-up in sugar coating machine and process and obtain raw material ball, balling-up
During, add compound according to balling-up situation with batch (-type), and be 18% by concentration in balling-up processes
Potassium chloride solution batch (-type) is sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution account for life
The 13% of pellet gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains puts into and carries out in rotary kiln burning till process 3 at 1200 DEG C
Hour, rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
Water absorption rate 1.23%, unit weight is 1383.21Kg/m3。
Embodiment 7:
1) take raw material by percentage to the quality: the flyash of 1%, the clay of 95%, the shraff of 2% and
The mixture of the clay mine tailing of 2%；Carry out ball milling after being mixed by raw material, be dried and after finely ground process, obtain blank standby
With；Wherein granularity accounts for more than the 90% of blank gross mass less than the blank of 65 μm；
2) by step 1) blank prepared and the granularity pore former less than 0.125mm be with mass ratio 100:
15 mixing, obtain compound；
3) by step 2) compound prepared puts into and carries out balling-up in sugar coating machine and process and obtain raw material ball, balling-up
During, add compound according to balling-up situation with batch (-type), and be 20% by concentration in balling-up processes
Potassium chloride solution batch (-type) is sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution account for life
The 14% of pellet gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains puts into and carries out in rotary kiln burning till process 5 at 900 DEG C
Hour, rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
Water absorption rate 4.78%, unit weight is 867.39Kg/m3。
Embodiment 8:
1) raw material is taken by percentage to the quality: the flyash of 20%, the clay of 40%, the shraff of 20%
Mixture with the clay mine tailing of 20%；Carry out ball milling after being mixed by raw material, be dried and after finely ground process, obtain base
Expect standby；Wherein granularity accounts for more than the 90% of blank gross mass less than the blank of 65 μm；
2) by step 1) blank prepared and the granularity pore former less than 0.125mm be with mass ratio 100:
18 mixing, obtain compound；
3) by step 2) compound prepared puts into and carries out balling-up in sugar coating machine and process and obtain raw material ball, balling-up
During, add compound according to balling-up situation with batch (-type), and be 21% by concentration in balling-up processes
Potassium chloride solution batch (-type) is sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution account for life
The 15% of pellet gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains puts into and carries out in rotary kiln burning till process 5 at 1000 DEG C
Hour, rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
Water absorption rate 3.84%, unit weight is 1306.12Kg/m3。
Embodiment 9:
1) raw material is taken by percentage to the quality: the flyash of 30%, the clay of 35%, the shraff of 20%
Mixture with the clay mine tailing of 15%；Carry out ball milling after being mixed by raw material, be dried and after finely ground process, obtain base
Expect standby；Wherein granularity accounts for more than the 90% of blank gross mass less than the blank of 65 μm；
2) by step 1) blank prepared and the granularity pore former less than 0.125mm be with mass ratio 100:
20 mixing, obtain compound；
3) by step 2) compound prepared puts into and carries out balling-up in sugar coating machine and process and obtain raw material ball, balling-up
During, add compound according to balling-up situation with batch (-type), and be 23% by concentration in balling-up processes
Potassium chloride solution batch (-type) is sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution account for life
The 10% of pellet gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains puts into and carries out in rotary kiln burning till process 3.4 at 1170 DEG C
Hour, rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
Water absorption rate 1.48%, unit weight is 1402.78Kg/m3。
Embodiment 10:
1) take raw material by percentage to the quality: the flyash of 45%, the clay of 50%, the shraff of 2% and
The mixture of the clay mine tailing of 3%；Carry out ball milling after being mixed by raw material, be dried and after finely ground process, obtain blank standby
With；Wherein granularity accounts for more than the 90% of blank gross mass less than the blank of 65 μm；
2) by step 1) blank prepared and the granularity pore former less than 0.125mm be with mass ratio 100:
16 mixing, obtain compound；
3) by step 2) compound prepared puts into and carries out balling-up in sugar coating machine and process and obtain raw material ball, balling-up
During, add compound according to balling-up situation with batch (-type), and be 25% by concentration in balling-up processes
Potassium chloride solution batch (-type) is sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution account for life
The 11.5% of pellet gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains puts into and carries out in rotary kiln burning till process 4.6 at 950 DEG C
Hour, rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
Water absorption rate 4.07%, unit weight is 1227.29Kg/m3。
Embodiment 11:
1) raw material is taken by percentage to the quality: the flyash of 10%, the clay of 70%, the shraff of 15%
Mixture with the clay mine tailing of 5%；Carry out ball milling after being mixed by raw material, be dried and after finely ground process, obtain blank
Standby；Wherein granularity accounts for more than the 90% of blank gross mass less than the blank of 65 μm；
2) by step 1) blank prepared and the granularity pore former less than 0.125mm be with mass ratio 100:
17 mixing, obtain compound；
3) by step 2) compound prepared puts into and carries out balling-up in sugar coating machine and process and obtain raw material ball, balling-up
During, add compound according to balling-up situation with batch (-type), and be the chlorine of 9% by concentration in balling-up processes
Change aqueous solutions of potassium batch (-type) to be sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution account for raw material
The 8.5% of ball gross mass；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains puts into and carries out in rotary kiln burning till process 3.7 at 1080 DEG C
Hour, rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
Water absorption rate 3.55%, unit weight is 1247.26Kg/m3。
Embodiment 12:
Weighing proportioning is flyash 40%, Datong District's soil be 60% raw material ball milling mix, after ball milling be dried
It is standby that finely ground mistake 80 mesh sieve obtains blank；Blank is mixed with the granularity coal dust less than 0.125mm, becomes
Hole agent is 20:100 with the ratio of blank；2Kg compound put in nodulizer according to equipment capacity and roll
Dynamic, with sprayer unit, the potassium chloride solution batch (-type) of prepare in advance 20% is sprayed onto balling-up on compound,
In raw material ball, the content of potassium chloride solution accounts for the 14.5% of raw material ball gross mass, adds according to balling-up situation batch (-type)
Entering compound dry powder, nodulizer continues to roll, and microballoon is gradually grown up, and raw material ball reaches the size (5mm) of requirement
Rear balling-up terminates；Raw material ball is sieved, removes particle diameter more than or less than the raw material ball requiring size, then will
Finished product is put in drying equipment and is dried；Dried raw material ball is put into rotary kiln, and to burn till 3.5 at 1150 DEG C little
Time；Finally, the haydite after burning till carries out screening choosing, and the potassium chloride surface obtaining meeting dimensional requirement helps burning
The light ceramic of knot.
Water absorption rate 2.15%, unit weight is 1327.30Kg/m3。
The potassium chloride surface obtained helps the light ceramic of sintering to carry out screening process finally according to needs, obtains
The product of whole required size.
The invention have the advantages that prepared haydite surface densified sintering product, internal un-sintered in cellular,
Global density is low；Haydite intensity is high, and unit weight is little, has good heat-insulating sound-insulating effect；The sintering used
Auxiliary agent potassium chloride low cost, easy-to-control added amount.Potassium chloride surface of the present invention helps the system of the light ceramic of sintering
It is simple that Preparation Method has technique, operates safety, can be mass-produced, and low cost and other advantages.System of the present invention
Potassium ion radius in the potassium chloride sintering aid obtained is less, helps agglomeration the most obvious.
Claims (5)
1. a potassium chloride surface helps the preparation method of light ceramic of sintering, it is characterised in that: include following
Step:
1) take raw material by percentage to the quality: the flyash of 0%-65%, the clay of 35%-95%, 0～65%
Shraff and 0～the clay mine tailing of 65%；Carry out ball milling after being mixed by raw material, be dried and after finely ground process
Obtain blank standby；Wherein granularity accounts for more than the 90% of blank gross mass less than the blank of 65 μm；
2) by step 1) blank prepared and pore former be with mass ratio 100:(5～20) mixing, mixed
Material；
3) by step 2) compound prepared carries out balling-up and processes and obtain raw material ball, in globulation, root
Compound is added with batch (-type) according to balling-up situation, and by potassium chloride that concentration is 5%～25% in balling-up processes
Aqueous solution batch (-type) is sprayed onto on compound, it is thus achieved that raw material ball in the content of potassium chloride solution to account for raw material ball total
The 8～15% of quality；
4) by step 3) raw material ball that obtains carries out process of sieving, and is dried, obtain being dried raw material ball；
5) by step 4) the dry raw material ball that obtains carries out burning till process 3～5 hours at 900～1200 DEG C,
Rear cooling obtains potassium chloride surface and helps the light ceramic of sintering.
A kind of potassium chloride surface the most according to claim 1 helps the preparation method of the light ceramic of sintering,
It is characterized in that: described step 2) in pore former be coal dust, granularity be less than 0.125mm.
A kind of potassium chloride surface the most according to claim 1 helps the preparation method of the light ceramic of sintering,
It is characterized in that: described step 3) in balling-up process equipment be sugar coating machine.
A kind of potassium chloride surface the most according to claim 1 helps the preparation method of the light ceramic of sintering,
It is characterized in that: described step 5) in burn till the equipment of process be rotary kiln.
5. the potassium chloride surface that the preparation method described in claim 1 prepares helps the light ceramic of sintering, and it is special
Levying and be: its surface densified sintering product, internal un-sintered in cellular, water absorption rate is less than 5%, and unit weight is 867.39
Kg/m3～1402.78Kg/m3。
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| CN100554160C (en) * | 2007-09-30 | 2009-10-28 | 陕西科技大学 | A kind of method of preparing lithium niobate super fine powder at low temperature |
| CN101445388A (en) * | 2008-12-11 | 2009-06-03 | 中国科学院嘉兴材料与化工技术工程中心 | Porous ceramic grain for disposing wastewater and method for preparing same |
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2014
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Effective date of registration: 20221026 Address after: In the courtyard of Northwest Refractory Factory, Xiaobeibao, Yaozhou District, Tongchuan City, Shaanxi Province 727199 Patentee after: QIN HAN CERAMIC TONGCHUAN LLC Address before: No. 1, Weiyang District university garden, Xi'an, Shaanxi Province, Shaanxi Patentee before: SHAANXI University OF SCIENCE & TECHNOLOGY |
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