CN102936126A - Preparation methods for standard brick material and standard brick - Google Patents
Preparation methods for standard brick material and standard brick Download PDFInfo
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- CN102936126A CN102936126A CN2012103881986A CN201210388198A CN102936126A CN 102936126 A CN102936126 A CN 102936126A CN 2012103881986 A CN2012103881986 A CN 2012103881986A CN 201210388198 A CN201210388198 A CN 201210388198A CN 102936126 A CN102936126 A CN 102936126A
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- standard brick
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- fine coal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
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Abstract
The present invention provides preparation methods for a standard brick material and a standard brick, wherein raw materials of the standard brick comprise, by weight, 35-55% of shale, 30-45% of yellow gypsum, and 10-20% of fine coal. According to the process, the raw materials are subjected to processes of material preparing, primary crushing, fine crushing, screening, material storing aging, primary refining, secondary refining, extruding molding, loading, drying, sintering molding, grading and packing to finally form the finished product standard brick. According to the present invention, the difficulty of comprehensive utilization of waste yellow gypsum in the existing titanium pigment powder production and technical problems of low strong, poor sintering performance and the like of the standard brick sample prepared through the existing process and the ratio are solved; and with the used raw materials, low temperature molding property and high temperature sintering property are improved, and it is ensured that CaSO4 can participate into the sintering reaction at a maximum during the high temperature sintering process.
Description
Technical field
The invention belongs to building material field, be specifically related to the preparation method of a kind of standard brick material and standard brick.
Background technology
The slag that discharges in the titanium white production, main component are gypsum, its short texture; outward appearance is the tawny solid; have another name called Huangshi cream, the whole nation can produce more than 500 ten thousand tons at present every year, because its water content is high, Huangshi cream is tiny with ferric oxide crystallization wherein; as mud; be difficult to heap high, by 1.3 tons/cube, 20 meters of height; can account for 300 mu of ground every year, bring very large difficulty to environment protection and recycling.Because this mine tailing main component is 2-water gypsum high Fe contained, high-moisture percentage, and be non-radioactive substance, trace element all surpasses the technical requirements that emission standard and radioassay meet material of construction among the GB6566-2001 " the radioactive material nuclear element is limited the quantity of ", as starting material and the auxiliary material of building industry very high utility value is arranged.Because make of refuse is very large, must find that a kind of consumption is large, energy-conserving and environment-protective, good in economic efficiency industry or product just can meet the demands.Through repeatedly proving, final definite the main raw material of this mine tailing as various building bricks and building block, so namely catered to market to the demand that such material of construction constantly increases, utilize problem that a good approach is provided for solving this tailings environmental-friendly again.
For this reason, we have carried out preparation research and the discussion of high incorporation building brick and sintered building block.The various raw materials that are applicable to prepare building brick and building block have at first been screened, comprise clay that shale, the plasticity-of loess, flyash, weathering is better etc., maturation process and the prescription of the several old brand brickmaking of reference factory, carried out the cross matching of different proportionings, different components, effect is all undesirable, following problem specifically occurs:
1) sample strength is low, even broken once pinching;
2) loss on ignition is excessive, and maximum have a 20-30%;
3) sintering character is poor, and surface irregularity, void content are high;
4) color does not meet the Popular Aesthetics look of brick and building block;
5) add-on of mine tailing all can not surpass 30%, and the consumption of mine tailing is very little;
6) a lot of problems also appear in low temperature moulding, and, rate of drying low, easy to crack such as blank strength crossed slowly and waited.
7) be subjected to simultaneously the factor affecting such as forming pressure, calcining system, aggregate size, in this test, along with forming pressure increases, aggregate size increases, sintering temperature raises, holding time, and the ultimate compression strength of sample brick and every physical and chemical index all increase.
Summary of the invention
The invention provides the preparation method of a kind of standard brick material and standard brick, the defects that exists to overcome prior art.
Concrete steps are as follows:
A kind of standard brick material, described standard brick is made by the raw material of following weight percent: shale 35-55%, Huangshi cream 30-45%, fine coal 10-20%.
Preferably, described standard brick is made by the raw material of following weight percent: shale 40%, Huangshi cream 45%, fine coal 15%.
Preferably, described raw material by following weight percent is made: shale 50%, Huangshi cream 35%, fine coal 15%.
A kind of method for preparing standard brick said method comprising the steps of:
Step 1 is prepared burden shale, Huangshi cream and fine coal by weight percentage;
Step 2 is tentatively pulverized the batch mixing of the shale, Huangshi cream and the fine coal that prepare;
Step 3 is carried out fine powder to the batch mixing of preliminary pulverizing broken;
Step 4 is sieved to the batch mixing of fine powder;
Step 5 is carried out the storing ageing with the batch mixing after sieving in the step 4;
Step 6 carries out just practicing to the batch mixing after the ageing;
Step 7 is carried out two to the batch mixing behind the first white silk and is practiced;
Step 8 is carried out extrusion molding to the batch mixing behind two white silks, forms adobe;
Step 9 is carried out drying treatment to adobe;
Step 10 carries out forming finished bricks behind the sintering process to the adobe after the drying treatment.
Preferably, the moisture content of the Huangshi cream in the above-mentioned steps 1 is 50%.
The aperture of trommel screen is 2.5mm when preferably, sieving in the above-mentioned steps 4.
Preferably, in the above-mentioned steps 8 in the moulding adobe contained humidity be 18-20%.
Preferably, the drying temperature in the above-mentioned steps 9 is 80-100 ℃, and be 24 hours time of drying.
Preferably, firing temperature is 950-1050 ℃ in the above-mentioned steps 10.
Preferably, firing period is 48 hours in the above-mentioned steps 10.
Enforcement the present invention have the following advantages:
1, the present invention accounts for 86% of gross weight ratio take the relatively poor shale of mine tailings and rate of decay as main body, and fine coal is the heat carrier, and being aided with functional raw material increases plasticity-, improves cryogenic forming performance and high temperature sintering performance, guarantees CaSO
4, in high-temperature sintering process, participate in to greatest extent sintering reaction.
2, the mine tailings that discharge in the titanium white production can be used as the starting material of the products such as manufacture building brick and building block fully, and have realized the high ratio that mixes, and have reached 40% at present.
3, the standard brick of preparation is standard brick for building, hollow brick, coking property building block, self-insulating brick etc.
4, used production unit can adopt present general brick equipment can satisfy processing requirement in the production process, and is very strong to the adaptability of equipment.
Embodiment
The invention provides a kind of standard brick material, this standard brick material is made by the raw material of following weight percent: shale 35-55%, Huangshi cream 30-45%, fine coal 10-20%.Each component optimum ratio is shale 40% in this raw material, Huangshi cream 45%, fine coal 15%.Each component optimum ratio can also be shale 50%, Huangshi cream 35%, fine coal 15% in this raw material.
The method for preparing standard brick provided by the invention, this standard brick comprises sintering standard brick, sintered hollow block and sintered building block, and the method is at first prepared burden shale, Huangshi cream and fine coal by weight percentage, and wherein the moisture content of Huangshi cream is 50%.Secondly the batch mixing of the shale, Huangshi cream and the fine coal that prepare is tentatively pulverized; Then the batch mixing of preliminary pulverizing is carried out fine powder broken; Then the batch mixing of fine powder sieved, the aperture of trommel screen is 2.5mm when sieving.Again the batch mixing after sieving in the step 4 is carried out the storing ageing; Then the batch mixing after the ageing is carried out just practicing; Then the batch mixing behind the first white silk being carried out two practices; Batch mixing after then practicing two carries out extrusion molding, forms adobe, and contained humidity is 18-20% in this adobe.Drying treatment is carried out in adobe, and drying temperature is 80-100 ℃, and be 24 hours time of drying.Be 950-1050 ℃ to the adobe after the drying treatment in temperature at last, firing period is to carry out forming finished bricks behind the sintering under 48 hours the environment.
The present invention accounts for 86% of gross weight ratio take the relatively poor shale of mine tailings and rate of decay as main body, and fine coal is the heat carrier, and being aided with functional raw material increases plasticity-, improves cryogenic forming performance and high temperature sintering performance, guarantees CaSO
4, in high-temperature sintering process, participate in to greatest extent sintering reaction, and be embedded in the mullite crystal, reduce product and shrink, and add a small amount of industrial chemicals adjusting finished color, achieve success at last through test of many times, manufacture experimently out standard brick for building.By lab scale, pilot scale, product all reaches service requirements.The mine tailings that discharge in the titanium white production can be used as the starting material of the products such as manufacture building sintering standard brick, sintered hollow block and sintered building block fully, and have realized the high ratio that mixes, and have reached 40% at present.The product aspect mainly contains: standard brick for building, hollow brick, coking property building block, self-insulating brick etc.Production unit adopts present general brick equipment can satisfy processing requirement, and is very strong to the adaptability of equipment.
The above only is preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. standard brick material, it is characterized in that: the raw material by following weight percent is made: shale 35-55%, Huangshi cream 30-45%, fine coal 10-20%.
2. standard brick material according to claim 1, it is characterized in that: the raw material by following weight percent is made: shale 40%, Huangshi cream 45%, fine coal 15%.
3. standard brick material according to claim 1, it is characterized in that: the raw material by following weight percent is made: shale 50%, Huangshi cream 35%, fine coal 15%.
4. method for preparing standard brick with the described material of claim 1 is characterized in that: said method comprising the steps of:
1) shale, Huangshi cream and fine coal are prepared burden by weight percentage;
2) batch mixing of the shale, Huangshi cream and the fine coal that prepare is tentatively pulverized;
3) batch mixing of preliminary pulverizing is carried out fine powder broken;
4) batch mixing of fine powder sieved;
5) batch mixing after sieving in the step 4 is carried out the storing ageing;
6) batch mixing after the ageing is carried out just practicing;
7) batch mixing behind the first white silk being carried out two practices;
8) batch mixing behind two white silks is carried out extrusion molding, form adobe;
9) drying treatment is carried out in adobe;
10) adobe after the drying treatment is carried out forming finished bricks behind the sintering process.
5. the described method for preparing standard brick according to claim 4, it is characterized in that: the moisture content of the Huangshi cream in the described step 1 is 50%.
6. the described method for preparing standard brick according to claim 4, it is characterized in that: the aperture of trommel screen is 2.5mm when sieving in the described step 4.
7. the described method for preparing standard brick according to claim 4 is characterized in that: in the described step 8 in the moulding adobe contained humidity be 18-20%.
8. the described method for preparing standard brick according to claim 4, it is characterized in that: the drying temperature in the described step 9 is 80-100 ℃, be 24 hours time of drying.
9. the described method for preparing standard brick according to claim 4, it is characterized in that: firing temperature is 950-1050 ℃ in the described step 10.
10. the described method for preparing standard brick according to claim 9, it is characterized in that: firing period is 48 hours in the described step 10.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103881986A CN102936126A (en) | 2012-10-15 | 2012-10-15 | Preparation methods for standard brick material and standard brick |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012103881986A CN102936126A (en) | 2012-10-15 | 2012-10-15 | Preparation methods for standard brick material and standard brick |
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| CN102936126A true CN102936126A (en) | 2013-02-20 |
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| CN2012103881986A Pending CN102936126A (en) | 2012-10-15 | 2012-10-15 | Preparation methods for standard brick material and standard brick |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408320A (en) * | 2013-07-24 | 2013-11-27 | 苏宝哲 | Manufacturing technology for manufacturing thin-walled bricks by using titanium dioxide wastes |
| CN106830868A (en) * | 2017-03-02 | 2017-06-13 | 泉州信息工程学院 | A kind of novel environment friendly density building block brick and preparation method thereof |
| CN107056233A (en) * | 2016-12-23 | 2017-08-18 | 泉州信息工程学院 | A kind of new compact-type building block brick and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326906A (en) * | 2001-03-08 | 2001-12-19 | 山东红日化工股份有限公司 | Phosphogypsum sintered brick, its producing method and special stirring equipment |
| CN102180636A (en) * | 2011-03-18 | 2011-09-14 | 南京工业大学 | Brick making process utilizing titanium gypsum blended with toxic sludge |
-
2012
- 2012-10-15 CN CN2012103881986A patent/CN102936126A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326906A (en) * | 2001-03-08 | 2001-12-19 | 山东红日化工股份有限公司 | Phosphogypsum sintered brick, its producing method and special stirring equipment |
| CN102180636A (en) * | 2011-03-18 | 2011-09-14 | 南京工业大学 | Brick making process utilizing titanium gypsum blended with toxic sludge |
Non-Patent Citations (1)
| Title |
|---|
| 郭泰民: "《工业副产石膏应用技术》", 31 January 2010, article "钛石膏", pages: 92 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408320A (en) * | 2013-07-24 | 2013-11-27 | 苏宝哲 | Manufacturing technology for manufacturing thin-walled bricks by using titanium dioxide wastes |
| CN107056233A (en) * | 2016-12-23 | 2017-08-18 | 泉州信息工程学院 | A kind of new compact-type building block brick and preparation method thereof |
| CN106830868A (en) * | 2017-03-02 | 2017-06-13 | 泉州信息工程学院 | A kind of novel environment friendly density building block brick and preparation method thereof |
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Application publication date: 20130220 |