CN109704706A - A kind of aerated coal ash block preparation method - Google Patents
A kind of aerated coal ash block preparation method Download PDFInfo
- Publication number
- CN109704706A CN109704706A CN201811626365.XA CN201811626365A CN109704706A CN 109704706 A CN109704706 A CN 109704706A CN 201811626365 A CN201811626365 A CN 201811626365A CN 109704706 A CN109704706 A CN 109704706A
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- China
- Prior art keywords
- coal ash
- block preparation
- waste
- lime
- aerated coal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010883 coal ash Substances 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000010881 fly ash Substances 0.000 claims abstract description 15
- 239000002699 waste material Substances 0.000 claims abstract description 15
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 12
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 12
- 239000004571 lime Substances 0.000 claims abstract description 12
- 239000011449 brick Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000012423 maintenance Methods 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims abstract description 8
- 239000011268 mixed slurry Substances 0.000 claims abstract description 8
- 238000000465 moulding Methods 0.000 claims abstract description 8
- 239000006004 Quartz sand Substances 0.000 claims abstract description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052602 gypsum Inorganic materials 0.000 claims abstract description 6
- 239000010440 gypsum Substances 0.000 claims abstract description 6
- 239000002002 slurry Substances 0.000 claims abstract description 6
- 239000004568 cement Substances 0.000 claims abstract description 5
- 238000012360 testing method Methods 0.000 claims abstract description 5
- 238000003756 stirring Methods 0.000 claims abstract description 3
- 238000000498 ball milling Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 claims description 2
- 239000011499 joint compound Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 239000004567 concrete Substances 0.000 description 8
- 238000009413 insulation Methods 0.000 description 7
- 239000002994 raw material Substances 0.000 description 5
- 239000004927 clay Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 239000004566 building material Substances 0.000 description 3
- 229920002472 Starch Polymers 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009414 blockwork Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- -1 it is "dead" Substances 0.000 description 1
- 239000003562 lightweight material Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The present invention discloses a kind of aerated coal ash block preparation method, comprising the following steps: takes flyash, quartz sand, desulfurized gypsum levigate according to the ratio, afterwards plus water is beaten；Again the slurry in cement, lime, waste pulp and step 1 is added into water together and stirs into mixed slurry；Above-mentioned mixed slurry is poured into pouring molding in mold；It is quiet after molding to stop precuring；It is quiet stop after cut, and it is spare that waste leftover material broken into slug；Steam press maintenance goes out kettle after completing maintenance and packs；Carry out natural curing again, after test to product；Wherein underproof product is crushed and to break into waste pulp spare.The present invention had not only recycled the waste laid bricks, but also had adjusted formula, had not only improved the efficiency of production, but also improved the quality of product, and control production cost, had significant economic benefit.
Description
Technical field
The present invention relates to autoclave aerated concrete building block technical field, specially a kind of aerated coal ash block preparation
Method.
Background technique
Air entrained concrete is a kind of light porous, insulation New Building Materials.It is used primarily in filling wall and partition wall,
Without undertaking load.Air entrained concrete raw materials for production are abundant, are raw material especially with flyash, can comprehensively utilize Industry Waste
Slag curbs environmental pollution, does not destroy arable land, and can create good Social benefit and economic benefit, is that a kind of substitution tradition is real
The ideal materials for wall of heart clay brick, for many years by the support energetically of national policy.
Flyash, is the fine ash that catching is got off from the flue gas after coal combustion, and flyash is the main of coal-burning power plant's discharge
Solid waste.Flyash is one of biggish industrial residue of the current discharge capacity in China, with the development of power industry, coal-burning power plant
Flyash discharge capacity increases year by year.A large amount of flyash is untreated, will generate fugitive dust, if polluting atmosphere, being discharged into water system meeting
River is caused to silt up, and toxic chemical substance therein can also cause damages to human body and biology.It is general all by flyash at present
As the admixture of concrete, in order to further increase utilization rate, it is badly in need of a kind of powder ash air-entrained concrete building block and its production
Method.
Summary of the invention
In view of the problems of the existing technology the present invention makes improvements, i.e., the technical problem to be solved in the present invention is to provide one
Kind aerated coal ash block preparation method.
In order to solve the above technical problems, the present invention provides a kind of aerated coal ash block preparation method, including it is interior
Screen casing and outer screen pipe, comprising the following steps:
Step 1 takes flyash, quartz sand, desulfurized gypsum levigate according to the ratio, and afterwards plus water is beaten；
Slurry in cement, lime, waste pulp and step 1 is added water again together and stirs into mixed slurry by step 2；
Above-mentioned mixed slurry is poured into pouring molding in mold by step 3；
It is quiet after step 4, molding to stop precuring；
Step 5, it is quiet stop after cut, and it is spare that waste leftover material broken into slug；
Step 6, steam press maintenance go out kettle after completing maintenance and pack；
Step 7 carries out natural curing again, after test to product；Wherein underproof product is crushed and is broken into useless
It starches spare.
Further technical solution is to be ground flyash, quartz sand, desulfurized gypsum by ball milling in the step 1
Mill.
Further technical solution, which is that the slurry in the step 2 in cement, lime, waste pulp and step 1 is put into, to be stirred
It mixes in machine and is stirred.
Further technical solution is that the lime in the step 2 pours into crusher and crushed, by bucket elevator mention into
Lime particle storehouse.
Further technical solution is the specific steps of the step 6 are as follows: the brick after cutting in step 5 is put into steaming
It presses in kettle, by vacuumizing, after increasing temperature and pressure, constant temperature and pressure, decrease temperature and pressure four-stage, kettle and packs out.
Aerated coal ash block preparation method proposed by the present invention had not only recycled the waste laid bricks, but also had adjusted
Whole formula, had not only improved the efficiency of production, but also improve the quality of product, and control production cost, had significant
Economic benefit.
Aerated coal ash building block prepared by the present invention to environmental protection, saves soil due to using flyash as raw material
Ground resource has more positive meaning, and the thermal coefficient of the product is lower (about 0.09~0.22w/m.k), is the 1/ of clay brick
4~1/5.Therefore, there is good insulation anti-seismic performance, be a kind of energy saving building material, so developing autoclaved fly ash
This green building material of aerated-block meets the strategy of sustainable development.Aerated coal ash building block is light-weight, according to different stage
It is divided into 300kg/m3~800kg/m3, only 1/3 or so of clay brick, the skyscraper in the lower area of bearing capacity can be with over the ground
Simplify basis, improve shock resistance, reduce building self weight, since aerated coal ash building block has good insulation
Anti-seismic performance can save heating and energy consumption for cooling, while possessing identical heat insulation effect with clay brick, can substantially reduce wall
Body thickness saves material utilization amount, reduces construction investment, increases the usable floor area of building.Also due to aerated coal ash building block
It is light-weight, type block is big, can be improved construction and conevying efficiency, shortens construction period, reduce project cost.
Detailed description of the invention
Fig. 1 is flow diagram of the invention.
Specific embodiment
Invention is further described in detail with reference to the accompanying drawings and examples.
As shown in Figure 1, one of the present embodiment aerated coal ash block preparation method, comprising the following steps:
Step 1 takes flyash, quartz sand, desulfurized gypsum levigate by ball milling according to the ratio, and afterwards plus water is beaten；
Slurry in cement, lime, waste pulp and step 1 is put into togerther in blender and is added water and stirred into again by step 2
Mixed slurry；
Above-mentioned mixed slurry is poured into pouring molding in mold by step 3；
It is quiet after step 4, molding to stop precuring；
Step 5, it is quiet stop after cut, and it is spare that waste leftover material broken into slug；
Step 6, steam press maintenance: by step 5 cut after brick be put into still kettle, by vacuumizing, increasing temperature and pressure,
After constant temperature and pressure, decrease temperature and pressure four-stage, goes out kettle after completing maintenance and pack；
Step 7 carries out natural curing again, after test to product；Wherein underproof product is crushed and is broken into useless
It starches spare.
Have the advantage that (1) is environmentally protective by the building block that the above method is prepared, wherein raw material is inorganic material
Material, it is "dead", toxic gas will not be generated at high temperature, use health, safety；
(2) fire safety, raw material and product itself are inorganic matter, are never burnt, and are not generated at high temperature toxic
The fire endurance of gas, 100mm thickness wall is greater than 4 hours；When temperature is 600 DEG C or so, compression strength connects air entrained concrete
Compression strength when near ambient temperature, so the fire protecting performance of the air entrained concrete as construction material reaches country-level fire prevention mark
Standard can meet requirement of the fire protection design of building prevention to firewall, so being widely used as firewall；
(3) insulation has good heat insulating effect using unique design.By test, to painting at black
The aerated coal ash blockwork surface of the 24cm thickness of color measures under sunlight irradiation, outdoor by 24 hours
Temperature fluctuations are greater than at 15 DEG C, and 3.8 DEG C of variation of only 21.1 DEG C to 24.9 DEG C of the variation of room temperature.
(4) light-weight aseismatic, the over dry capacity of aerated coal ash building block are 400~650kg/m3, quality is common brick
1/3, the 1/4 of concrete, therefore can effectively mitigate the self weight of building, basis and structure investment are reduced, when reducing construction
Labor intensity and excellent shock-resistant light-weight materials for wall.
(5) sound insulation and noise reduction is evenly distributed big since the internal structure image planes packet of aerated coal ash building block is the same
The sealed porosity of amount, therefore the sound-absorbing and sound insulation dual property not having with common buildings material.The product of different stage,
External noise interference and interior can be isolated up to 40~60dB in the wall weighted transmission loss of different facings and thickness
Mellow and full melodious acoustic environment.
Wherein the lime in the step 2 pours into crusher and is crushed, and is mentioned by bucket elevator into lime particle storehouse.
Various experiments are carried out to building block, experimental data is as follows:
Cubic compressive strength/MPa of 1 building block of table
The dry density kg/m of 2 building block of table3
The intensity rank of 3 building block of table
The dry contraction of table 4, frost resistance and thermal coefficient
The above is not intended to limit the present invention in any form, although the present invention takes off through the foregoing embodiment
Show, however, it is not intended to limit the invention, any person skilled in the art, is not departing from technical solution of the present invention range
It is interior, made when the technology contents using the disclosure above and change or be modified to the equivalent embodiments of equivalent variations a bit, but it is all not
Be detached from technical solution of the present invention content, according to the technical essence of the invention it is to the above embodiments it is any it is simple modification,
Equivalent variations and modification, all of which are still within the scope of the technical scheme of the invention.
Claims (5)
1. a kind of aerated coal ash block preparation method, which comprises the following steps:
Step 1 takes flyash, quartz sand, desulfurized gypsum levigate according to the ratio, and afterwards plus water is beaten；
Slurry in cement, lime, waste pulp and step 1 is added water again together and stirs into mixed slurry by step 2；
Above-mentioned mixed slurry is poured into pouring molding in mold by step 3；
It is quiet after step 4, molding to stop precuring；
Step 5, it is quiet stop after cut, and it is spare that waste leftover material broken into slug；
Step 6, steam press maintenance go out kettle after completing maintenance and pack；
Step 7 carries out natural curing again, after test to product；Wherein underproof product is crushed and to break into waste pulp standby
With.
2. aerated coal ash block preparation method according to claim 1, which is characterized in that lead in the step 1
Ball milling is crossed to grind flyash, quartz sand, desulfurized gypsum.
3. aerated coal ash block preparation method according to claim 1, which is characterized in that water in the step 2
Slurry in mud, lime, waste pulp and step 1, which is put into blender, to be stirred.
4. aerated coal ash block preparation method according to claim 1, which is characterized in that in the step 2
Lime pours into crusher and is crushed, and is mentioned by bucket elevator into lime particle storehouse.
5. aerated coal ash block preparation method according to claim 1, which is characterized in that the tool of the step 6
Body step are as follows: the brick after cutting in step 5 is put into still kettle, by vacuumizing, increasing temperature and pressure, constant temperature and pressure, cooling
After being depressured four-stage, kettle and pack out.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811626365.XA CN109704706A (en) | 2018-12-28 | 2018-12-28 | A kind of aerated coal ash block preparation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811626365.XA CN109704706A (en) | 2018-12-28 | 2018-12-28 | A kind of aerated coal ash block preparation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109704706A true CN109704706A (en) | 2019-05-03 |
Family
ID=66259170
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811626365.XA Pending CN109704706A (en) | 2018-12-28 | 2018-12-28 | A kind of aerated coal ash block preparation method |
Country Status (1)
| Country | Link |
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| CN (1) | CN109704706A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694308A (en) * | 2020-12-31 | 2021-04-23 | 陕西凝远新材料科技股份有限公司 | Process for producing aerated concrete by using waste slurry generated by tubular pile |
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|---|---|---|---|---|
| CN101913902A (en) * | 2010-08-04 | 2010-12-15 | 舟山市宇锦新型墙体材料有限公司 | Powder ash air-entrained concrete building block and preparation method thereof |
| CN102992723A (en) * | 2012-12-01 | 2013-03-27 | 师宗彩湖建材有限责任公司 | Production method of aerated concrete |
| CN103755300A (en) * | 2013-12-18 | 2014-04-30 | 贵州耐尔福科技发展有限公司 | Production method of fly ash aerated concrete block |
| CN103964781A (en) * | 2014-05-04 | 2014-08-06 | 抚州市恒顺环保建材有限公司 | Autoclaved aerated concrete block and manufacturing process thereof |
| WO2015020612A1 (en) * | 2013-08-07 | 2015-02-12 | Nanyang Technological University | Waste incinerator ash as aerating agent for the manufacture of lightweight construction materials |
| CN105174833A (en) * | 2015-08-14 | 2015-12-23 | 江苏金立方环保科技有限公司 | Production technology for autoclaved aerated concrete building block |
| CN105732082A (en) * | 2016-02-26 | 2016-07-06 | 欧士玺 | Aerated concrete block and preparing method thereof |
| CN108033750A (en) * | 2017-12-11 | 2018-05-15 | 福建奇胜环保建材科技有限公司 | A kind of autoclave aerated concrete building block and its production technology |
-
2018
- 2018-12-28 CN CN201811626365.XA patent/CN109704706A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101913902A (en) * | 2010-08-04 | 2010-12-15 | 舟山市宇锦新型墙体材料有限公司 | Powder ash air-entrained concrete building block and preparation method thereof |
| CN102992723A (en) * | 2012-12-01 | 2013-03-27 | 师宗彩湖建材有限责任公司 | Production method of aerated concrete |
| WO2015020612A1 (en) * | 2013-08-07 | 2015-02-12 | Nanyang Technological University | Waste incinerator ash as aerating agent for the manufacture of lightweight construction materials |
| CN103755300A (en) * | 2013-12-18 | 2014-04-30 | 贵州耐尔福科技发展有限公司 | Production method of fly ash aerated concrete block |
| CN103964781A (en) * | 2014-05-04 | 2014-08-06 | 抚州市恒顺环保建材有限公司 | Autoclaved aerated concrete block and manufacturing process thereof |
| CN105174833A (en) * | 2015-08-14 | 2015-12-23 | 江苏金立方环保科技有限公司 | Production technology for autoclaved aerated concrete building block |
| CN105732082A (en) * | 2016-02-26 | 2016-07-06 | 欧士玺 | Aerated concrete block and preparing method thereof |
| CN108033750A (en) * | 2017-12-11 | 2018-05-15 | 福建奇胜环保建材科技有限公司 | A kind of autoclave aerated concrete building block and its production technology |
Non-Patent Citations (1)
| Title |
|---|
| 吕恒林等: "《粉煤灰混凝土砌块自保温墙体技术研究》", 30 September 2016, 中国矿业大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112694308A (en) * | 2020-12-31 | 2021-04-23 | 陕西凝远新材料科技股份有限公司 | Process for producing aerated concrete by using waste slurry generated by tubular pile |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190503 |
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