CN1100987A - Micro-porous unburnt brick production by using agriculture waste material - Google Patents
Micro-porous unburnt brick production by using agriculture waste material Download PDFInfo
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- CN1100987A CN1100987A CN 93105416 CN93105416A CN1100987A CN 1100987 A CN1100987 A CN 1100987A CN 93105416 CN93105416 CN 93105416 CN 93105416 A CN93105416 A CN 93105416A CN 1100987 A CN1100987 A CN 1100987A
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Abstract
The present invention relates to a production method of micropore blank-body porous brick by using agricultural discard as pore-forming material. Its raw materials for manufacturing the blank body of the micropore blank-body porous brick are clay and cinder (dried and pulverized agricultural discard whose grain fineness is less than 1.0mm), which are mixed in a certain proportion, and then formed by plastic forming method, i.e. an internal combustion roasting sintering process for producing porous brick is used to obtain the invented micropore blank body porous brick. As compared with solid brick its thermal conductivity is greatly reduced. Besides, said invention also can be used for producing micropore blank hollow brick and solid brick.
Description
The present invention relates to a kind of building fired brick.
The unselected clay solid brick since heat-insulating property difference and the energy consumption that consumed when producing replaced by structural clay tile greatly and progressively.Porous clay brick has certain energy-saving effect, but existing porous brick apart from the energy conservation standard of regulation, promptly to require 49cm wall heat transfer coefficient than the energy-conservation 30%(of clay solid brick be 0.37W/m
2K) also has very big distance, in order to address this problem, people have done multiple effort, a kind of method is to increase hole ratio, but stressed sigma compactness can require and the working condition restriction, the thermal conductivity factor that can reduce is that certain limit is arranged, another kind method is to make base substrate form microcellular structure, thermal conductivity factor with low base substrate, thereby reduce the thermal conductivity factor of porous brick effectively, just need mix pore-forming material in raw material for realization micro-porous unburnt structure, pore-forming material burns after roasting, and base substrate forms microcellular structure, so just, can reduce the thermal conductivity factor of base substrate, the crux problem of this technology is that microcellular structure must be rationally, otherwise the intensity of body can reduce significantly, influences the service life of construction quality and building.The external general practice of using this technology is to utilize plastic beads as pore-forming material, because the cost of plastic beads is too high, this technical scheme can not be applied in China.Other has an application number to be " 85106457 ", name is called the patent application of " autoclaved fly ash micropore bearing building block and manufacture method thereof ", relate to the improvement of a kind of building wall block and manufacture method thereof, it is synthetic that this building block belongs to hydro-thermal, with hydrated calcium silicate is main air entrained concrete, it can only be as 5 to 6 floor bearing building blocks, and not only range of application is narrow, and manufacture craft is also complicated, cost is also high.
Task of the present invention is: design a kind of agricultural wastes (as flax shell, rice husk etc.) that utilize and as pore-forming material, mix in the clay, pore-forming material burns after roasting, and base substrate forms microcellular structure, makes the thermal conductivity factor of base substrate reduce about 20%.
Task of the present invention realizes as follows: the percentage by weight of the various raw materials of the blank of microporous hollow brick is clay 70%, slag 22～26%, (crushed after being dried, grain fineness are less than the agricultural wastes of 1.00mm) pore-creating material 4～8%, above-mentioned raw materials is mixed, adopt the moulding of plasticity method then, promptly adopting its technical process of internal combustion roasting sintered hollow block production technology is at first:
1, the clay ageing is measured then
2, slag is pulverized metering then
3, pore creating agent is pulverized metering then
With above-mentioned three kinds of material in dryer, dry in small, broken bits in twin rollers then, in biaxial rneader blunge, in small, broken bits in twin rollers, add in the vacuum bat extruder that water squeezes base, cuts base, dry under 30～85 ℃ of conditions in the sign indicating number base, hothouse, sign indicating number base, indoor 30～970 ℃ of roastings, kiln discharge, sorting, piling in the tunnel.
The present invention is owing to adopt agricultural wastes (flaxseed shell, rice husk, corncob etc.) to make microporous hollow adobe material as the pore-creating material, it is easy but also cheap that roasting micro-porous unburnt porous brick is not only drawn materials, the micro molding quality is good, satisfy the requirement of compression strength and anti-folding load, thermal conductivity factor has reduced by 30～50%, and the body of wall of making under the identical situation of cost reaches 41% than the structural clay tile body of wall is energy-conservation.
Accompanying drawing is a micropore structural clay tile view of the present invention;
A most preferred embodiment of the present invention, the raw material ratio of micropore structural clay tile blank is: clay 70%, slag 22-26%, present embodiment selects 25% for use, pore-creating material, (crushed after being dried such as agricultural wastes such as corncob, flaxseed shell, rice husk, grain fineness is less than 1.00mm) less than 4-8%, present embodiment selects 5% for use, and its processing technology is: at first will
1, the clay ageing is measured then
2, slag is pulverized metering then
3, pore creating agent is pulverized metering then
With above-mentioned three kinds of material in dryer, dry in small, broken bits in twin rollers then, in biaxial rneader blunge, in small, broken bits in twin rollers, add in the vacuum bat extruder that water squeezes base, cuts base, dry under 30～85 ℃ of conditions in the sign indicating number base, hothouse, sign indicating number base, indoor 30～970 ℃ of roastings, kiln discharge, sorting, piling in the tunnel.
Adopt batching of the present invention and explained hereafter microporous hollow brick, the performance of its base substrate is: micro-porous unburnt unit weight is 1530～1560Kg/m
3, thermal conductivity factor is 0.51～0.52W/mk, and general base substrate unit weight is 1660～1690Kg/m
3Thermal conductivity factor is 0.62～0.65W/mK, and promptly unit weight reduces 8.4%, and thermal conductivity factor reduces about 20%.
The physico-mechanical properties of micro-porous unburnt: the hole ratio of micro-porous unburnt porous brick is 30% with its called after DM-J type, and unit weight is 1100～1160Kg/m
3, to press the JC196-56 regulation and detect, intensity reaches 100#, and frost resistance is qualified, and water absorption rate is 15～20%, and thermal conductivity factor is 0.31～0.32W/mK.
Utilize the mechanical property of the hollow brick masonry that the present invention makes: the brick setting axial compression is the result show, the MD-J shaped brick reaches 100#, conform to examination and test of products conclusion, masonry bias voltage performance shearing strength is all consistent with clay solid brick, the actual measurement elastic modelling quantity is higher than the regulation and stipulation value, and the every mechanical property of masonry all reaches code requirement.
Thermal characteristic of wall: on the Building Heat static laboratory bench, the DM-J type body of wall (inside and outside surface plastering) thick to 49cm carries out thermal technology's mensuration, and its heat transfer coefficient is 0.73W/M
2K, (heat transfer coefficient is 1.28W/m with the clay solid brick body of wall of same thickness
2K) compare, heat transfer coefficient reduces by 43%.The condition determination of these data is that body of wall is in dampness (water content of brick and masonry mortar is respectively 9.1% and 20.01%), and when body of wall was in the balance saturation state, its heat transfer coefficient will be well below measured value.
Claims (3)
1, a kind of agricultural wastes are made the micro-porous unburnt porous brick of pore creating agent, and the percentage by weight that it is characterized in that making the various raw materials of blank is clay 70%, slag 22-26%, agricultural wastes pore-creating material 4～8%.
2, micro-porous unburnt porous brick as claimed in claim 1 is characterized in that: the grain fineness after said agricultural wastes pore-creating material is pulverized is less than 1.0mm.
3, a kind of micro-porous unburnt porous brick as claimed in claim 1 or 2, it is characterized in that: said raw material also can be used for producing micro-porous unburnt hollow brick or solid brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105416 CN1100987A (en) | 1993-05-05 | 1993-05-05 | Micro-porous unburnt brick production by using agriculture waste material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93105416 CN1100987A (en) | 1993-05-05 | 1993-05-05 | Micro-porous unburnt brick production by using agriculture waste material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1100987A true CN1100987A (en) | 1995-04-05 |
Family
ID=4985708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93105416 Pending CN1100987A (en) | 1993-05-05 | 1993-05-05 | Micro-porous unburnt brick production by using agriculture waste material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1100987A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408289A (en) * | 2013-08-09 | 2013-11-27 | 西北农林科技大学 | Preparation method of high-porosity clay base porous ceramic |
-
1993
- 1993-05-05 CN CN 93105416 patent/CN1100987A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103408289A (en) * | 2013-08-09 | 2013-11-27 | 西北农林科技大学 | Preparation method of high-porosity clay base porous ceramic |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |