CN100393655C - Sintering brick using schist as raw material - Google Patents
Sintering brick using schist as raw material Download PDFInfo
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- CN100393655C CN100393655C CNB2005100199181A CN200510019918A CN100393655C CN 100393655 C CN100393655 C CN 100393655C CN B2005100199181 A CNB2005100199181 A CN B2005100199181A CN 200510019918 A CN200510019918 A CN 200510019918A CN 100393655 C CN100393655 C CN 100393655C
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- schist
- brick
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- raw material
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Abstract
The present invention relates to a soil clinker brick aiming at providing a clinker brick using schist as raw material for manufacturing the brick. Therefore, the present invention provides a soil clinker brick; raw material for manufacturing the brick comprises clay. The present invention is characterized in that the raw material for manufacturing the brick also uses the schist, wherein the schist comprises the chemical compositions of the weight ratio of 62.7 to 72% of SiO2, 13.6 to 19% of Al2O3, 1 to 8% of Fe2O3, 0.08 to 0.17% of CaO and 1.1 to 1.6% of MgO. the weight ratio of the schist in the raw material is from 10 to 90%; the schist and the clay are processed into the brick according to a conventional method for manufacturing the brick. The present invention develops schist resources in the country and reasonably develops potential industrial use in view of the physicochemical property of the schist. The present invention only needs little clay can use clay at the surface of rock in the process of excavating mountains and recycle waste clay in the process of the foundation construction of houses; the present invention does not need tillage clay. The performance of the brick body of the present invention conforms to GB5101-2003 standard requirements and can completely replace the solid clay brick.
Description
Technical field
The present invention relates to a kind of building brick, particularly a kind of vitrified brick.
Background technology
Present building brick much still adopts clay to fire and forms, and needs a large amount of diggings to plough, and causes cultivated land resource loss and waste.In order to protect the environment protection soil, accelerate to eliminate the solid commentaries on classics of clay, national former economic and commercial committee has issued national provincial capital will realize banning use of the target of solid clay brick at the latest before the end of the year 2005 notice jointly together with the Ministry of Construction, Ministry of Land and Resources, the Ministry of Agriculture.The day of one's doom in 2005 arrived, and China has adopted measure in a lot of cities at present, and restriction is protected rare cultivated land resource with clay-brickmaking.The new building brick of the numerous and confused exploitation of brick enterprise is made to replace clay brick in various places for this reason.Because the chemical ingredients of clay, shale, these three kinds of raw materials of flyash is close substantially, can be used for producing sintered article.The brick field that has in clay brick admixture flyash, but the incorporation maximum is still very big to the dependence of clay 50%.Shale also is used to brickmaking, but China's more distributions in a lot of places are schists, clings to the central mountain range in mountain range, Taiwan such as Shaanxi, Henan, Hubei, the domestic Qin in Shaanxi.Schist is generally shale and volcanic ash a kind of rock that recrystallize forms after moderate is rotten.Through chemical analysis, the schist main component contains elements such as a large amount of silicon, aluminium, iron, calcium, magnesium, and its content and material thereof also are suitable for making brick, for the area of distribution schist, is not that main brick-making raw material is the exploitation of purpose with schist also at present.
Summary of the invention
The object of the present invention is to provide a kind of schist that adopts is the vitrified brick of making the brick raw material.For this reason, the present invention proposes a kind of sintering brick using schist as raw material, makes the brick raw material and comprises clay, it is characterized in that: make the brick raw material and also adopt schist, wherein said schist is to contain the SiO of chemical component weight than 62.7-72%
2, 13.6-19% Al
2O
3, 1-8% Fe
2O
3, 0.08-0.17% the schist of MgO of CaO, 1.1-1.6%; The weight ratio of schist described in the raw material is 10-90%; Described schist and clay are made the brick method routinely and are processed into brick.
Routine make the brick method be generally with raw material classify open-air ageing, pulverizing, screening, secondary ageing (optional), stir proportioning, secondary stirring (optional), shaping forming, drying, roasting and kiln discharge sign indicating number heap warehouse-in.Being improved in routine of sintering brick using schist as raw material of the present invention made in the brick method, and the process that has pair raw material to need earlier open-air ageing to pulverize again can be added the yellow ginger waste water of pH value at 1-4 in the described open-air aging step in the ageing material.The yellow ginger waste water that adds in the general cubical ageing material is no more than 500 kilograms and is advisable.Further improvement of the present invention is to make in the brick method in routine, has that pair raw material is pulverized, a process of screening, ageing and stirring, in the step of described stirring, can add the yellow ginger waste water of pH value at 1-4 in stirring material.This effect that adds the yellow ginger sour water is, yellow ginger sour water and weak rock generation neutralization reaction impel rock to generate silicate, can improve the intensity of product like this, shorten the roasting drying time, and the content that can also reduce calcium is to increase binding property.
Sintering brick using schist as raw material of the present invention has reduced the demand of brickmaking process to clay, and suits measures to local conditions, and has developed some geographic schist resources of China.At Shiyan, China Hubei area schist land waste that is otherwise known as, be a kind of dregs, very abundant in the mountain area.The present invention is directed to the physicochemical property of schist, reasonable development its potential industrial use, significantly reduced in the brickmaking technology dependence, thereby reached the purpose of the resource of protecting farmland clay.The present invention can bring up to 90% with the weight ratio of schist in raw material, therefore during brickmaking, only need clay seldom, required clay can directly utilize the clay of mantle of rock in the process of cutting into a mountain, and also can recycle depleted clay in the house foundation construction process and need not directly to take the arable land clay.Its brick body performance meets the standard-required of GB5101-2003, can substitute solid clay brick fully.
Embodiment
Sintering brick using schist as raw material embodiment one of the present invention: the schist supplied materials is classified earlier, divide to pick unaccommodated foreign material such as numb cobble, white cobble, concrete etc., sorted for making the brick raw material.Schist wherein for containing chemical component weight than 70.57% SiO
2, 17.5% Al
2O
3, 1.73% Fe
2O
3, 0.11% CaO, 1.26% MgO schist.Sorted schist is carried out ageing, and ageing is open-air to place raw material 6 months, adds the yellow ginger waste water of pH value 1-4 in also can the raw material before ageing, adds than being that the yellow ginger waste water that adds in each cubical ageing material is 400 kilograms.Raw material behind the interpolation yellow ginger waste water can shorten digestion time, is generally 1-2 month.Then the ageing raw material is pulverized with pulverizer, crushed material is screened again remove the particle of granularity more than 4mm.Secondary ageing then, secondary ageing are generally and got final product in open-air placement 1-3 hour.Fine powder material after the secondary ageing is transported to the yellow ginger waste water that adds pH value 1-4 in the steel basin stirs, also can add water, the shared weight ratio of yellow ginger waste water or water is generally at 5-10%, and churning time is 30-60 second.Add clay when stirring in stirring material, clay weight is 20% of clay schist gross weight.Be transported in the secondary stirring groove powder after stirring again that the situation according to the mud bar adds suitable quantity of water, moisture content is controlled at 12-16%, and churning time was controlled at 30 seconds.The mud bar carries out the moulding of mud bar after the secondary stirring, and keeps water channel unimpeded, adopts two-stage vacuum mud extruder moulding mud bar, and the draft of employing two-stage vacuum mud extruder vacuum must be more than 6 kilogram forces; Can also use instrument moulding mud bars such as extrusion machine, octal brick machine and brick-making mould.Then to moulding mud bar drying, natural airing or oven dry all can, but dry back residue moisture content must not surpass 20%.Again dried moulding mud bar is carried out roasting, maturing temperature is at 900-1100 ℃, and the time is 4-6 hour.Kiln discharge sign indicating number heap is put in storage then.
Embodiment two: sorted schist for containing chemical component weight than 71.5% SiO
2, 18% Al
2O
3, 1.5% Fe
2O
3, 0.09% CaO, 1.4% MgO schist.To sorted schist carry out ageing, pulverizing, screening, secondary ageing, stir proportioning, secondary stirring, shaping forming, drying, roasting, kiln discharge sign indicating number heap warehouse-in be identical with the foregoing description.Just in stirring technique, stirring the clay weight of adding in the material is 25% of clay schist gross weight.
Embodiment three: sorted schist for containing chemical component weight than 65% SiO
2, 15% Al
2O
3, 5.8% Fe
2O
3, 0.08% CaO, 1.1% MgO schist.To sorted schist carry out ageing, pulverizing, screening, secondary ageing, stir proportioning, secondary stirring, shaping forming, drying, roasting, kiln discharge sign indicating number heap warehouse-in be identical with the foregoing description.Just in stirring technique, stirring the clay weight of adding in the material is 15% of clay schist gross weight.
Embodiment four: sorted schist for containing chemical component weight than 62.7% SiO
2, 17.98% Al
2O
3, 7.81% Fe
2O
3, 0.17% CaO, 1.6% MgO schist.To sorted schist carry out ageing, pulverizing, screening, secondary ageing, stir proportioning, secondary stirring, shaping forming, drying, roasting, kiln discharge sign indicating number heap warehouse-in be identical with the foregoing description.Just in stirring technique, stirring the clay weight of adding in the material is 10% of clay schist gross weight.
Embodiment five: sorted schist for containing chemical component weight than 68.7% SiO
2, 13.6% Al
2O
3, 3.5% Fe
2O
3, 0.15% CaO, 1.3% MgO schist.To sorted schist carry out ageing, pulverizing, screening, secondary ageing, stir proportioning, secondary stirring, shaping forming, drying, roasting, kiln discharge sign indicating number heap warehouse-in be identical with the foregoing description.Just in stirring technique, stirring the clay weight of adding in the material is 12% of clay schist gross weight.
The search report of sintering brick using schist as raw material assay of the present invention being provided according to Shiyan City's product quality supervision and testing institute [ten quality inspection words (2005S) C081 number] shows, 150,000 of sampling basic numbers, 50 of sample sizes adopt the sintering brick using schist as raw material of schist raw material production to meet the GB5101-2003 standard fully.
Characteristics of the present invention are to have adopted in the raw material schist. The weight ratio of schist is 10-90%. Work as schist Can well save clay when weight ratio is big, just be fit to do brick but must add clay in the schist. At present the development test result shows, when the schist weight ratio reaches 90% when above, glues in the cooperation that does not have clay Close in the situation and also can't make fired brick. When the schist weight ratio hour as 10%, the clay consumption is very big, Schist fully can brickmaking as the auxiliary element of clay at this moment. When the weight ratio of schist less than 10%, sticking The soil weight ratio is greater than 90% the time, and its brick of making is called as clay brick usually, and it saves the superior of clay resource Property is no longer outstanding.
Claims (1)
1. a sintering brick using schist as raw material is made the brick raw material and is comprised clay, makes the brick raw material and also adopts schist, and wherein said schist is to contain the SiO of chemical component weight than 62.7-72%
2, 13.6-19% Al
2O
3, 1-8% Fe
2O
3, 0.08-0.17% the schist of MgO of CaO, 1.1-1.6%; The weight ratio of schist described in the raw material is 10-90%; Described schist and clay are made the brick method routinely and are processed into brick, described routine make the brick method for the schist raw material is classified, open-air ageing, pulverizing, screening, secondary ageing, stirring, secondary stirring, shaping forming, drying, roasting and kiln discharge sign indicating number heap warehouse-in, it is characterized in that: in the process that earlier open-air ageing is pulverized again to raw material, in described open-air aging step, in the ageing material, add the yellow ginger waste water of pH value at 1-4; Conducting powder is broken, in screening, secondary ageing and the whipping process, in the step of described stirring, add the yellow ginger waste water of pH value at 1-4 in stirring material, adds clay to stirring in expecting in the time of stirring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100199181A CN100393655C (en) | 2005-11-26 | 2005-11-26 | Sintering brick using schist as raw material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100199181A CN100393655C (en) | 2005-11-26 | 2005-11-26 | Sintering brick using schist as raw material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1792953A CN1792953A (en) | 2006-06-28 |
| CN100393655C true CN100393655C (en) | 2008-06-11 |
Family
ID=36804619
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100199181A Expired - Fee Related CN100393655C (en) | 2005-11-26 | 2005-11-26 | Sintering brick using schist as raw material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100393655C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102795831B (en) * | 2012-08-23 | 2014-06-25 | 同济大学 | Deep foundation pit soil-sintered porous brick and production method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5134215A (en) * | 1974-09-17 | 1976-03-23 | Nippon Mining Co | |
| CN1046884A (en) * | 1990-06-01 | 1990-11-14 | 湖北非金属地质公司 | A kind of ornamental brick method for making |
| CN1066050A (en) * | 1992-04-10 | 1992-11-11 | 陈中岩 | Novel foam lightweight heavy-load bearing brick |
-
2005
- 2005-11-26 CN CNB2005100199181A patent/CN100393655C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5134215A (en) * | 1974-09-17 | 1976-03-23 | Nippon Mining Co | |
| CN1046884A (en) * | 1990-06-01 | 1990-11-14 | 湖北非金属地质公司 | A kind of ornamental brick method for making |
| CN1066050A (en) * | 1992-04-10 | 1992-11-11 | 陈中岩 | Novel foam lightweight heavy-load bearing brick |
Non-Patent Citations (2)
| Title |
|---|
| 以绢云母质粘土为主的墙地砖. 张进.河北陶瓷，第23卷第4期. 1995 |
| 以绢云母质粘土为主的墙地砖. 张进.河北陶瓷，第23卷第4期. 1995 * |
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| Publication number | Publication date |
|---|---|
| CN1792953A (en) | 2006-06-28 |
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Granted publication date: 20080611 Termination date: 20101126 |