CN104671743A - Wear-resistant gangue-shale fired hollow brick and preparation method thereof - Google Patents
Wear-resistant gangue-shale fired hollow brick and preparation method thereof Download PDFInfo
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- CN104671743A CN104671743A CN201510045886.6A CN201510045886A CN104671743A CN 104671743 A CN104671743 A CN 104671743A CN 201510045886 A CN201510045886 A CN 201510045886A CN 104671743 A CN104671743 A CN 104671743A
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- shale
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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 invention discloses a wear-resistant gangue-shale fired hollow brick and a preparation method thereof. The wear-resistant gangue-shale fired hollow brick is characterized by being prepared from the following raw materials in parts by weight: 62-67 parts of processed gangue-shale mixed powder, 40-43 parts of coal ash, 3-4 parts of a silica gel solution, 7-10 parts of dried lake sludge, 14-16 parts of kaolin, 6-8 parts of quartz sand and 9-10 parts of water. According to the wear-resistant gangue-shale fired hollow brick, the processed gangue-shale mixed powder and coal ash are taken as main ingredients and are supplemented with components such as kaolin, so that the particles are uniform distributed, the plasticity and the compactness of the product are improved, and the strength of the product is improved; by cooperatively adding a proper amount of quartz sand, the wear resistance of the product is improved; the wear-resistant gangue-shale fired hollow brick is light in dead weight, low in density and high in compactness and wear resistance, and wall body materials of buildings can be improved.
Description
Technical field
The present invention relates to building material field, particularly a kind of wear-resistant coal gangue shale sintered hollow block and preparation method thereof.
Background technology
Coal gangue is as one of maximum industrial solid castoff of China's quantity discharged.And the quantity discharged of annual coal gangue is equivalent to about 10% of coal production then.Year discharge rate will be greater than 1.6 hundred million tons.Stack coal gangue and not only take a large amount of soil, and contaminate environment, affect life and the health of people.In addition, coal gangue spontaneous combustion can discharge multiple obnoxious flavour etc., goes back a large amount of flue dust of association simultaneously and has explosion hazard.Therefore spontaneous combustion of coal gangue hill causes impact in various degree to the atmospheric environment HUMAN HEALTH, animal and plant growth etc. of surrounding.Flyash is one of industrial residue that the current discharge capacity of China is larger, and along with the development of power industry, the flyash quantity discharged of coal-burning power plant increases year by year.A large amount of flyash does not add process, will produce airborne dust, atmosphere pollution; River can be caused to silt up if enter water system, and toxic chemical substance wherein also can work the mischief to human body and biology.
Change the promotion of policy at national wall under, the northern China major part coal-producing area generally adopts coal gangue to be main raw material brickmaking.Utilize coal gangue to bake bricks, it both can make raw material, can make fuel again, can accomplish that brickmaking need not be native, bake bricks without coal.This is one and both processed waste material, farmland saving again, and the comprehensive utilization project of fuel-saving killing three birds with one stone.As coal gangue itself, it is also a kind of deposition shale, and its chemical composition is substantially close to shale, because its adjacent coal seam generates, therefore containing a certain amount of carbon component, and can for baking bricks.South China area lacks coal resources, does not have coal gangue desirable, but most area has abundant shale ore resource.Shale is also a kind of desirable brick-making raw material, and shale brick quality is hard, and color and luster bright red can do dry wall and decorative block, deeply favors by user, is extensively adopted by our brickmaking industry.
The sintered hollow block quality that coal gangue, flyash, shale are produced is good, and the performances such as ultimate compression strength can reach more than hollow brick standard, freeze proof, wear-resisting, fire-resistant, acidproof, alkaline-resisting are all better.From following building materials market, utilize the slag such as coal gangue produce novel environment friendly building material product because itself is energy-conservation, lightweight, warming, this product can digest a large amount of industrial wastes simultaneously, farmland saving, decreasing pollution, protection of the environment.
But due to the position of the exploitation such as coal gangue, shale and the different of time, and windrow is uneven, material composition all can be caused to fluctuate large, so just need to carry out a series of process to raw material to make adobe more later, can quality product be improved, increase yield, reduce costs.
Summary of the invention
The object of this invention is to provide a kind of wear-resistant coal gangue shale sintered hollow block and preparation method thereof.By carrying out a series of pre-treatment to coal gangue, shale, and kaolin, dry lake silt interpolation plasticity index can be made to increase, cohesiveness between particle increases, make base substrate finer and close, in drying process, during moisture evaporation, cracking phenomena improves, water-intake rate reduces, thus adds blank strength and weather resistance.Add the high quartz sand of hardness simultaneously, the abrasivity of product can be improved.
In order to realize object of the present invention, the present invention is by following scheme implementation:
A kind of wear-resistant coal gangue shale sintered hollow block, is made up of the raw material of following weight part: coal gangue shale mixed powder 62-67, flyash 40-43 after process, silica gel solution 3-4, dry lake silt 7-10, kaolin 14-16, quartz sand 6-8, water 9-10;
Coal gangue shale mixed powder after described process is mixed by the raw material of following weight part: coal gangue 48-52, shale 14-16; Treatment process is as follows: (1) is selected coal gangue, shale, rejects the foreign material such as plastics, weeds, solid refuse, large-scale rock block wherein; (2) coal gangue, shale are carried out coarse crushing in jaw crusher, use grinder in small, broken bits after taking-up again, adjust powder particles by adjustment disk gap, control the 30%-50% that powder that particle diameter is less than 0.05mm accounts for total amount, 0.05-1.3mm accounts for 20-60%, and 1.3-2mm is less than 30%; (3) mixed powder is put into tramp iron separator except the metallic element such as de-iron, then put into stirrer and add water and stir, amount of water is the 15%-16% of mixed powder amount, then the material be stirred is put into the ageing of ageing storehouse 4-5 days and get final product.
One of the present invention is wear-resistant coal gangue shale sintered hollow block, be made up of following concrete steps:
(1) dry lake silt, kaolin, quartz sand are added pulverizer and pulverizes, then cross 150 mesh sieves formation powder mix A stand-by, flyash is put into ball mill ball milling and be mixed to form compound B with powder mix A after 30-40 minute;
(2) compound B and the coal gangue shale mixed powder after processing together put into stirrer, add silica gel solution, water, adjustment material, to moulding water content, is then put into descaling extrusion press and is carried out extrusion moulding, control moulding moisture is 15%-17%, and forming pressure is 2MPa.
(3) shaping adobe is carried out drying by automatically cutting code fortune equipment feeding dry kiln, control temperature is 110 DEG C-120 DEG C, and be dried to water content lower than 6%, drying process controls at 12-20 hour.
(4) dried base substrate is put into tunnel calcining kiln taking again and is carried out roasting, slowly heats up with the speed of 50 DEG C-60 DEG C per hour, and firing temperature is 1050 DEG C, and firing period controls at 42-47 hour, is incubated and slowly cools to room temperature after 4-6 hour, take out and get final product.
The invention has the beneficial effects as follows: the present invention, using the coal gangue shale mixed powder after process, flyash as main component, is aided with the compositions such as kaolin, even particle distribution, improves plasticity and the degree of compactness of product, thus improve the intensity of product; Coordinate and add appropriate quartz sand, improve the abrasivity of product; The hollow brick that the present invention sinters into is from heavy and light, and density is little, degree of compactness is high, abrasivity is high, can improve construction material.
Specific embodiments
Below by specific examples, the present invention is described in detail.
A kind of wear-resistant coal gangue shale sintered hollow block, is made up of the raw material of following weight part (kilogram): the coal gangue shale mixed powder 62 after process, flyash 40, silica gel solution 3, dry lake silt 7, kaolin 14, quartz sand 6, water 9;
Coal gangue shale mixed powder after described process is mixed by the raw material of following weight part (kilogram): coal gangue 48, shale 14; Treatment process is as follows: (1) is selected coal gangue, shale, rejects the foreign material such as plastics, weeds, solid refuse, large-scale rock block wherein; (2) coal gangue, shale are carried out coarse crushing in jaw crusher, use grinder in small, broken bits after taking-up again, adjust powder particles by adjustment disk gap, control the 30%-50% that powder that particle diameter is less than 0.05mm accounts for total amount, 0.05-1.3mm accounts for 20-60%, and 1.3-2mm is less than 30%; (3) mixed powder is put into tramp iron separator except the metallic element such as de-iron, then put into stirrer and add water and stir, amount of water is 15% of mixed powder amount, then the material be stirred is put into the ageing of ageing storehouse 4 days and get final product.
One of the present invention is wear-resistant coal gangue shale sintered hollow block, be made up of following concrete steps:
(1) dry lake silt, kaolin, quartz sand are added pulverizer and pulverizes, then cross 150 mesh sieves formation powder mix A stand-by, flyash is put into ball mill ball milling and be mixed to form compound B with powder mix A after 30 minutes;
(2) compound B and the coal gangue shale mixed powder after processing together put into stirrer, add silica gel solution, water, adjustment material, to moulding water content, is then put into descaling extrusion press and is carried out extrusion moulding, controlling moulding moisture is 15%, and forming pressure is 2MPa.
(3) shaping adobe is carried out drying by automatically cutting code fortune equipment feeding dry kiln, control temperature is 110 DEG C-120 DEG C, is dried to water content lower than 6%, and drying process controlled at 14 hours.
(4) dried base substrate is put into tunnel calcining kiln taking again and is carried out roasting, slowly heats up with the speed of 50 DEG C-60 DEG C per hour, and firing temperature is 1050 DEG C, and firing period controls at 45 hours, is incubated and slowly cools to room temperature after 5 hours, take out and get final product.
Through various test determination, the intensity of the embodiment of the present invention reaches MU5.0 grade, and density is 990 kg/m
3, water-intake rate is 14.8%.
Claims (2)
1. a wear-resistant coal gangue shale sintered hollow block, it is characterized in that, be made up of the raw material of following weight part: coal gangue shale mixed powder 62-67, flyash 40-43 after process, silica gel solution 3-4, dry lake silt 7-10, kaolin 14-16, quartz sand 6-8, water 9-10;
Coal gangue shale mixed powder after described process is mixed by the raw material of following weight part: coal gangue 48-52, shale 14-16; Treatment process is as follows: (1) is selected coal gangue, shale, rejects the foreign material such as plastics, weeds, solid refuse, large-scale rock block wherein; (2) coal gangue, shale are carried out coarse crushing in jaw crusher, use grinder in small, broken bits after taking-up again, adjust powder particles by adjustment disk gap, control the 30%-50% that powder that particle diameter is less than 0.05mm accounts for total amount, 0.05-1.3mm accounts for 20-60%, and 1.3-2mm is less than 30%; (3) mixed powder is put into tramp iron separator except the metallic element such as de-iron, then put into stirrer and add water and stir, amount of water is the 15%-16% of mixed powder amount, then the material be stirred is put into the ageing of ageing storehouse 4-5 days and get final product.
2. a kind of wear-resistant coal gangue shale sintered hollow block according to claim 1, is characterized in that, be made up of following concrete steps:
(1) dry lake silt, kaolin, quartz sand are added pulverizer and pulverizes, then cross 150 mesh sieves formation powder mix A stand-by, flyash is put into ball mill ball milling and be mixed to form compound B with powder mix A after 30-40 minute;
(2) compound B and the coal gangue shale mixed powder after processing together put into stirrer, add silica gel solution, water, adjustment material, to moulding water content, is then put into descaling extrusion press and is carried out extrusion moulding, control moulding moisture is 15%-17%, and forming pressure is 2MPa;
(3) shaping adobe is carried out drying by automatically cutting code fortune equipment feeding dry kiln, control temperature is 110 DEG C-120 DEG C, is dried to water content lower than 6%, and drying process controls at 12-20 hour;
(4) dried base substrate is put into tunnel calcining kiln taking again and is carried out roasting, slowly heats up with the speed of 50 DEG C-60 DEG C per hour, and firing temperature is 1050 DEG C, and firing period controls at 42-47 hour, is incubated and slowly cools to room temperature after 4-6 hour, take out and get final product.
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130494A (en) * | 2015-08-13 | 2015-12-09 | 牛艳宁 | Foaming thermal-insulation fireproof brick produced by using coal gangue, and preparation method thereof |
| CN106083174A (en) * | 2016-06-24 | 2016-11-09 | 广西科技大学 | A kind of preparation method of paper white sludge burned shale perforated brick |
| CN106116631A (en) * | 2016-06-24 | 2016-11-16 | 广西科技大学 | Paper white sludge burned shale perforated brick |
| CN106630942A (en) * | 2016-12-27 | 2017-05-10 | 定远县明友墙体材料有限责任公司 | Preparation method of high-hardness and high-wear-resistance sintered brick |
| CN107365146A (en) * | 2017-08-01 | 2017-11-21 | 常州海瑞纺织品有限公司 | A kind of shale brick and preparation method thereof |
| CN107721383A (en) * | 2017-11-15 | 2018-02-23 | 山西聚义宝鑫新材料有限公司 | A kind of purplish red landscape ornamental pavior brick |
| CN108147782A (en) * | 2017-12-25 | 2018-06-12 | 合肥佳安建材有限公司 | Sintered coal gangue hollow brick and its production method |
| CN109422522A (en) * | 2017-08-22 | 2019-03-05 | 滁州市南谯生辉新型建材有限公司 | A kind of composite energy-saving sintering shale hollow brick and its preparation process |
| CN110950637A (en) * | 2019-12-23 | 2020-04-03 | 湖州德海新型建材有限公司 | River silt improved shale coal gangue baked brick and preparation method thereof |
| CN111004013A (en) * | 2019-12-26 | 2020-04-14 | 浙江路兴环保科技有限公司 | High-strength bearing brick made of clay and manufacturing method thereof |
| CN113683395A (en) * | 2021-08-18 | 2021-11-23 | 宁国市新鑫新型墙体材料有限公司 | Preparation process of fly ash sintered hollow brick |
| CN113800886A (en) * | 2021-09-17 | 2021-12-17 | 来安县九久新型建材有限公司 | Preparation method of high-strength hollow brick |
| CN115141009A (en) * | 2022-07-13 | 2022-10-04 | 国发环保新材料(江门)有限公司 | Artificial stone prepared from coal gangue and fly ash and method |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105130494A (en) * | 2015-08-13 | 2015-12-09 | 牛艳宁 | Foaming thermal-insulation fireproof brick produced by using coal gangue, and preparation method thereof |
| CN106083174A (en) * | 2016-06-24 | 2016-11-09 | 广西科技大学 | A kind of preparation method of paper white sludge burned shale perforated brick |
| CN106116631A (en) * | 2016-06-24 | 2016-11-16 | 广西科技大学 | Paper white sludge burned shale perforated brick |
| CN106630942A (en) * | 2016-12-27 | 2017-05-10 | 定远县明友墙体材料有限责任公司 | Preparation method of high-hardness and high-wear-resistance sintered brick |
| CN107365146A (en) * | 2017-08-01 | 2017-11-21 | 常州海瑞纺织品有限公司 | A kind of shale brick and preparation method thereof |
| CN109422522A (en) * | 2017-08-22 | 2019-03-05 | 滁州市南谯生辉新型建材有限公司 | A kind of composite energy-saving sintering shale hollow brick and its preparation process |
| CN107721383A (en) * | 2017-11-15 | 2018-02-23 | 山西聚义宝鑫新材料有限公司 | A kind of purplish red landscape ornamental pavior brick |
| CN108147782A (en) * | 2017-12-25 | 2018-06-12 | 合肥佳安建材有限公司 | Sintered coal gangue hollow brick and its production method |
| CN108147782B (en) * | 2017-12-25 | 2020-12-11 | 合肥佳安建材有限公司 | Sintered gangue hollow brick and production method thereof |
| CN110950637A (en) * | 2019-12-23 | 2020-04-03 | 湖州德海新型建材有限公司 | River silt improved shale coal gangue baked brick and preparation method thereof |
| CN111004013A (en) * | 2019-12-26 | 2020-04-14 | 浙江路兴环保科技有限公司 | High-strength bearing brick made of clay and manufacturing method thereof |
| CN113683395A (en) * | 2021-08-18 | 2021-11-23 | 宁国市新鑫新型墙体材料有限公司 | Preparation process of fly ash sintered hollow brick |
| CN113800886A (en) * | 2021-09-17 | 2021-12-17 | 来安县九久新型建材有限公司 | Preparation method of high-strength hollow brick |
| CN115141009A (en) * | 2022-07-13 | 2022-10-04 | 国发环保新材料(江门)有限公司 | Artificial stone prepared from coal gangue and fly ash and method |
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Application publication date: 20150603 |