WO2021035465A1 - Flame retardant dry-mixed mortar for ecological building external walls and preparation method therefor - Google Patents
Flame retardant dry-mixed mortar for ecological building external walls and preparation method therefor Download PDFInfo
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- WO2021035465A1 WO2021035465A1 PCT/CN2019/102503 CN2019102503W WO2021035465A1 WO 2021035465 A1 WO2021035465 A1 WO 2021035465A1 CN 2019102503 W CN2019102503 W CN 2019102503W WO 2021035465 A1 WO2021035465 A1 WO 2021035465A1
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- coal gangue
- dry powder
- flame
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- ecological building
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/04—Heat treatment
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
Definitions
- the invention relates to the technical field of dry powder mortar, in particular to a flame-retardant dry powder mortar for ecological building exterior walls and a preparation method thereof.
- Coal gangue is a solid waste discharged during coal mining and coal washing. It is a dark-gray rock with lower carbon content and harder than coal that is associated with coal seams during coal formation. Including the excavation gangue in the process of roadway excavation, the gangue extracted from the roof, floor and interlayer during the excavation process, and the washing gangue picked out during the coal washing process.
- Coal-associated waste rock is a kind of mining solid waste, which is discharged during the process of tunneling, mining and coal washing. It is a type of mining solid waste, including gangue from coal washing plants, hand-selected gangue in coal production, coal and rock discharged from the excavation of semi-coal and rock roadways, and white gangue outside the coal series stacked with coal gangue.
- Coal gangue is mainly used to produce gangue cement, lightweight aggregates of concrete, refractory bricks and other building materials. In addition, it can also be used to recover coal, coal and gangue are mixed for power generation, and to produce crystalline aluminum chloride, water glass and other chemical products. It can extract precious and rare metals and can also be used as fertilizer.
- the present invention provides a flame-retardant dry powder mortar for ecological building exterior walls and a preparation method thereof.
- the present invention proposes a flame-retardant dry powder mortar for ecological building exterior walls, which effectively utilizes coal gangue crushed materials, reduces production costs, and meets the requirements of the national sustainable development strategy.
- a flame-retardant dry powder mortar for ecological building exterior walls including the following components by weight percentage:
- the model of Portland cement is 42.5R or 52.5R.
- model of the Portland cement is 42.5R.
- a preparation method of flame-retardant dry powder mortar for exterior walls of ecological buildings includes the following steps:
- A. Collection and crushing Collect coal gangue, put it in a crusher and simply crush it, add 2-5% slaked lime powder and mix it, and crush it repeatedly to a particle size below 8mm;
- the present invention uses a high temperature above 800°C to directly roast the pulverized coal gangue material at a high temperature, which can not only oxidize various metals in the gangue pulverized material, but also directly burn various organic matter in the gangue pulverized material. It evaporates into carbon dioxide.
- hot air needs to be continuously introduced during the roasting step.
- the tail gas generated in the roasting step is first passed into the quicklime water, and then used as a heat source to heat the cold air to prevent carbon dioxide from directly entering the atmosphere and causing pollution.
- the advantages of the present invention are: firstly, it uses renewable materials to replace the original non-renewable minerals, which saves mineral resources and energy; secondly, the addition of glutinous rice flour and molybdenum sulfide composite fullerene materials improves the viscosity of dry mortar.
- the third is the addition of expanded vermiculite powder and molybdenum sulfide composite fullerene material, which significantly improves the flame retardant performance of the dry powder mortar; the dry powder mortar of the present invention is not only low in cost, but also has a wide range of raw materials, which is beneficial to reduce the environment The burden meets the national requirements for energy conservation and environmental protection in the construction industry.
- a flame-retardant dry powder mortar for ecological building exterior walls including the following components by weight percentage:
- a preparation method of flame-retardant dry powder mortar for exterior walls of ecological buildings includes the following steps:
- A. Collecting and crushing Collect coal gangue, put it into a crusher for simple crushing, then add 2-5% hydrated lime powder and mix it, and crush it repeatedly to a particle size of less than 8mm;
- the tail gas generated in the roasting step is first passed into the quicklime water and then used as a heat source to heat the cold air, so as to prevent carbon dioxide from directly entering the atmosphere and causing pollution.
- a flame-retardant dry powder mortar for ecological building exterior walls including the following components by weight percentage:
- a preparation method of flame-retardant dry powder mortar for exterior walls of ecological buildings includes the following steps:
- A. Collection and crushing Collect coal gangue, put it in a crusher and simply crush it, add 2-5% slaked lime powder and mix it, and crush it repeatedly to a particle size below 8mm;
- the tail gas generated in the roasting step is first passed into the quicklime water and then used as a heat source to heat the cold air, so as to prevent carbon dioxide from directly entering the atmosphere and causing pollution.
- a flame-retardant dry powder mortar for ecological building exterior walls including the following components by weight percentage:
- a preparation method of flame-retardant dry powder mortar for exterior walls of ecological buildings includes the following steps:
- A. Collection and crushing Collect coal gangue, put it in a crusher and simply crush it, add 2-5% slaked lime powder and mix it, and crush it repeatedly to a particle size below 8mm;
- the tail gas generated in the roasting step is first passed into the quicklime water and then used as a heat source to heat the cold air, so as to prevent carbon dioxide from directly entering the atmosphere and causing pollution.
- a flame-retardant dry powder mortar for ecological building exterior walls including the following components by weight percentage:
- a preparation method of flame-retardant dry powder mortar for exterior walls of ecological buildings includes the following steps:
- A. Collection and crushing Collect coal gangue, put it in a crusher and simply crush it, add 2-5% slaked lime powder and mix it, and crush it repeatedly to a particle size below 8mm;
- the tail gas generated in the roasting step is first passed into the quicklime water and then used as a heat source to heat the cold air, so as to prevent carbon dioxide from directly entering the atmosphere and causing pollution.
- a flame-retardant dry powder mortar for ecological building exterior walls including the following components by weight percentage:
- a preparation method of flame-retardant dry powder mortar for exterior walls of ecological buildings includes the following steps:
- A. Collection and crushing Collect coal gangue, put it in a crusher and simply crush it, add 2-5% slaked lime powder and mix it, and crush it repeatedly to a particle size below 8mm;
- the tail gas generated in the roasting step is first passed into the quicklime water and then used as a heat source to heat the cold air, so as to prevent carbon dioxide from directly entering the atmosphere and causing pollution.
- Example 1 The molybdenum sulfide composite fullerene material in Example 1 was removed, and the remaining proportion and preparation method were unchanged.
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- Ceramic Engineering (AREA)
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- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Building Environments (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
A flame retardant dry-mixed mortar for ecological building external walls, comprising the following main components: pulverized coal gangue of different particle sizes, silicate cement and a molybdenum sulfide composite fullerene material. Replacing the original non-renewable minerals with a regenerated material saves mineral resources and energy resources. Adding glutinous rice flour and the molybdenum sulfide composite fullerene material improves the binding performance and construction performance of the dry-mixed mortar. Adding expanded vermiculite powder and the molybdenum sulfide composite fullerene material improves the flame retardancy of the dry-mixed mortar. Said dry-mixed mortar not only has low cost, but also has wide range of raw material sources, thereby being beneficial for reducing environmental burden, and complying with the requirements of the country for energy conservation and environmental protection in the building industry.
Description
本发明涉及干粉砂浆技术领域，尤其涉及一种生态型建筑外墙阻燃干粉砂浆及其制备方法。The invention relates to the technical field of dry powder mortar, in particular to a flame-retardant dry powder mortar for ecological building exterior walls and a preparation method thereof.
煤矸石是采煤过程和洗煤过程中排放的固体废物，是一种在成煤过程中与煤层伴生的一种含碳量较低、比煤坚硬的黑灰色岩石。包括巷道掘进过程中的掘进矸石、采掘过程中从顶板、底板及夹层里采出的矸石以及洗煤过程中挑出的洗矸石。煤伴生废石是矿业固体废物的一种，是在掘进、开采和洗煤过程中排出的固体废物。是矿业固体废物的一种，包括洗煤厂的洗矸、煤炭生产中的手选矸、半煤巷和岩巷掘进中排出的煤和岩石以及和煤矸石一起堆放的煤系之外的白矸等的混合物。是碳质、泥质和砂质页岩的混合物，具有低发热值。含碳20％～30％，有些含腐殖酸。中国历年已积存煤矸石约1000Mt，并且每年仍继续排放约100Mt，不仅堆积占地，而且还能自燃污染空气或引起火灾。煤矸石主要被用于生产矸石水泥、混凝土的轻质骨料、耐火砖等建筑材料，此外还可用于回收煤炭，煤与矸石混烧发电，制取结晶氯化铝、水玻璃等化工产品以及提取贵重稀有金属，也可作肥料。Coal gangue is a solid waste discharged during coal mining and coal washing. It is a dark-gray rock with lower carbon content and harder than coal that is associated with coal seams during coal formation. Including the excavation gangue in the process of roadway excavation, the gangue extracted from the roof, floor and interlayer during the excavation process, and the washing gangue picked out during the coal washing process. Coal-associated waste rock is a kind of mining solid waste, which is discharged during the process of tunneling, mining and coal washing. It is a type of mining solid waste, including gangue from coal washing plants, hand-selected gangue in coal production, coal and rock discharged from the excavation of semi-coal and rock roadways, and white gangue outside the coal series stacked with coal gangue. And other mixtures. It is a mixture of carbonaceous, argillaceous and sandy shale with low calorific value. It contains 20% to 30% carbon, and some contain humic acid. China has accumulated about 1,000Mt of coal gangue over the years, and it continues to discharge about 100Mt every year, which not only accumulates land, but also spontaneously ignites, pollutes the air or causes fires. Coal gangue is mainly used to produce gangue cement, lightweight aggregates of concrete, refractory bricks and other building materials. In addition, it can also be used to recover coal, coal and gangue are mixed for power generation, and to produce crystalline aluminum chloride, water glass and other chemical products. It can extract precious and rare metals and can also be used as fertilizer.
我国每年的煤矸石产量都非常高，为了降低煤矸石造成的污染问题，本发明提供了一种生态型建筑外墙阻燃干粉砂浆及其制备方法。The output of coal gangue in my country is very high every year. In order to reduce the pollution problem caused by coal gangue, the present invention provides a flame-retardant dry powder mortar for ecological building exterior walls and a preparation method thereof.
发明内容Summary of the invention
基于背景技术存在的技术问题，本发明提出了一种生态型建筑外墙阻燃干粉砂浆，有效利用了煤矸石粉碎料，降低了生产成本，符合国家可持续发展战 略要求。Based on the technical problems existing in the background technology, the present invention proposes a flame-retardant dry powder mortar for ecological building exterior walls, which effectively utilizes coal gangue crushed materials, reduces production costs, and meets the requirements of the national sustainable development strategy.
一种生态型建筑外墙阻燃干粉砂浆，包括以下重量百分比的成分：A flame-retardant dry powder mortar for ecological building exterior walls, including the following components by weight percentage:
0-1mm煤矸石粉碎料 10-18％0-1mm coal gangue crushed material 10-18%
1-3mm煤矸石粉碎料 30-40％1-3mm coal gangue crushed material 30-40%
硅酸盐水泥 25-35％Portland cement 25-35%
糯米粉 8-15％Glutinous rice flour 8-15%
硫化钼复合富勒烯材料 1-2％Molybdenum sulfide composite fullerene material 1-2%
膨胀蛭石粉 2-8％Expanded vermiculite powder 2-8%
3-8mm煤矸石粉碎料 余量。3-8mm coal gangue crushed material margin.
优选的，所述的硅酸盐水泥的型号为42.5R或者52.5R。Preferably, the model of Portland cement is 42.5R or 52.5R.
进一步优选的，所述的硅酸盐水泥的型号为42.5R。Further preferably, the model of the Portland cement is 42.5R.
所述的硫化钼复合富勒烯材料的制备方法参考中国发明专利CN 106732670A。For the preparation method of the molybdenum sulfide composite fullerene material, refer to the Chinese invention patent CN 106732670A.
一种生态型建筑外墙阻燃干粉砂浆的制备方法，包括以下步骤：A preparation method of flame-retardant dry powder mortar for exterior walls of ecological buildings includes the following steps:
A、收集粉碎：将煤矸石集中回收，放入粉碎机中简单粉碎后，再加入2-5％的熟石灰粉混合后，反复粉碎至8mm以下的粒径；A. Collection and crushing: Collect coal gangue, put it in a crusher and simply crush it, add 2-5% slaked lime powder and mix it, and crush it repeatedly to a particle size below 8mm;
B、焙烧：将粉碎后的煤矸石粉碎料送入电窑，在800℃氧化条件下焙烧2-3h；B. Roasting: send the pulverized coal gangue crushed material into an electric kiln, and roast it for 2-3h under 800℃ oxidation condition;
C、二次破碎：将焙烧后的煤矸石粉碎料送入破碎机中破碎，将颗粒筛分成三种规格，分别是3-8mm，1-3mm，0-1mm；C. Secondary crushing: The roasted coal gangue crushed material is sent to the crusher for crushing, and the particles are sieved into three specifications, namely 3-8mm, 1-3mm, 0-1mm;
D、应用：按照配方要求，将不同粒径的煤矸石粉碎料与其它原料共同搅拌均匀后，再次粉碎过筛，制成干粉砂浆。D. Application: According to the requirements of the formula, the coal gangue crushing materials of different particle sizes and other raw materials are mixed uniformly, then crushed and sieved again to make a dry mortar.
本发明采用800℃以上的高温直接对粉碎后的煤矸石粉碎料进行高温焙烧， 不但可以将煤矸石粉碎料中的各种金属进行氧化，而且可以将煤矸石粉碎料中的各种有机物直接烧成二氧化碳挥发掉。The present invention uses a high temperature above 800°C to directly roast the pulverized coal gangue material at a high temperature, which can not only oxidize various metals in the gangue pulverized material, but also directly burn various organic matter in the gangue pulverized material. It evaporates into carbon dioxide.
优选的，所述的焙烧步骤中需要不断的通入热空气。Preferably, hot air needs to be continuously introduced during the roasting step.
优选的，所述的焙烧步骤产生的尾气先通入生石灰水中，再作为热源对冷空气进行加热，防止二氧化碳直接进入大气，造成污染。Preferably, the tail gas generated in the roasting step is first passed into the quicklime water, and then used as a heat source to heat the cold air to prevent carbon dioxide from directly entering the atmosphere and causing pollution.
本发明的有益之处在于：一是用再生材料替代原有的不可再生的矿物，节约了矿产资源及能源；二是加入了糯米粉和硫化钼复合富勒烯材料，提升了干粉砂浆的粘结性能和施工性能；三是加入了膨胀蛭石粉和硫化钼复合富勒烯材料，显著提高了干粉砂浆的阻燃性能；本发明的干粉砂浆不但成本低廉，而且原料来源广泛，有利于降低环境的负担，符合国家对建筑行业节能、环保的要求。The advantages of the present invention are: firstly, it uses renewable materials to replace the original non-renewable minerals, which saves mineral resources and energy; secondly, the addition of glutinous rice flour and molybdenum sulfide composite fullerene materials improves the viscosity of dry mortar. The third is the addition of expanded vermiculite powder and molybdenum sulfide composite fullerene material, which significantly improves the flame retardant performance of the dry powder mortar; the dry powder mortar of the present invention is not only low in cost, but also has a wide range of raw materials, which is beneficial to reduce the environment The burden meets the national requirements for energy conservation and environmental protection in the construction industry.
实施例1Example 1
一种生态型建筑外墙阻燃干粉砂浆，包括以下重量百分比的成分：A flame-retardant dry powder mortar for ecological building exterior walls, including the following components by weight percentage:
0-1mm煤矸石粉碎料 14％0-1mm coal gangue crushed material 14%
1-3mm煤矸石粉碎料 34％1-3mm coal gangue crushed material 34%
硅酸盐水泥 32％Portland cement 32%
糯米粉 12％Glutinous rice flour 12%
硫化钼复合富勒烯材料 1.5％Molybdenum sulfide composite fullerene material 1.5%
膨胀蛭石粉 4％Expanded vermiculite powder 4%
3-8mm煤矸石粉碎料 余量。3-8mm coal gangue crushed material margin.
一种生态型建筑外墙阻燃干粉砂浆的制备方法，包括以下步骤：A preparation method of flame-retardant dry powder mortar for exterior walls of ecological buildings includes the following steps:
A、收集粉碎：将煤矸石集中回收，放入粉碎机中简单粉碎后，再加入2-5％ 的熟石灰粉混合后，反复粉碎至8mm以下的粒径；A. Collecting and crushing: Collect coal gangue, put it into a crusher for simple crushing, then add 2-5% hydrated lime powder and mix it, and crush it repeatedly to a particle size of less than 8mm;
B、焙烧：将粉碎后的煤矸石粉碎料送入电窑，在800℃氧化条件下焙烧2-3h；B. Roasting: send the pulverized coal gangue crushed material into an electric kiln, and roast it for 2-3h under 800℃ oxidation condition;
C、二次破碎：将焙烧后的煤矸石粉碎料送入破碎机中破碎，将颗粒筛分成三种规格，分别是3-8mm，1-3mm，0-1mm；C. Secondary crushing: The roasted coal gangue crushed material is sent to the crusher for crushing, and the particles are sieved into three specifications, namely 3-8mm, 1-3mm, 0-1mm;
D、应用：按照配方要求，将不同粒径的煤矸石粉碎料与其它原料共同搅拌均匀后，再次粉碎过筛，制成干粉砂浆。D. Application: According to the requirements of the formula, the coal gangue crushing materials of different particle sizes and other raw materials are mixed uniformly, then crushed and sieved again to make a dry mortar.
所述的焙烧步骤中需要不断的通入热空气。In the roasting step, it is necessary to continuously pass in hot air.
所述的焙烧步骤产生的尾气先通入生石灰水中再作为热源对冷空气进行加热，防止二氧化碳直接进入大气，造成污染。The tail gas generated in the roasting step is first passed into the quicklime water and then used as a heat source to heat the cold air, so as to prevent carbon dioxide from directly entering the atmosphere and causing pollution.
实施例2Example 2
一种生态型建筑外墙阻燃干粉砂浆，包括以下重量百分比的成分：A flame-retardant dry powder mortar for ecological building exterior walls, including the following components by weight percentage:
0-1mm煤矸石粉碎料 18％0-1mm coal gangue crushed material 18%
1-3mm煤矸石粉碎料 30％1-3mm coal gangue crushed material 30%
硅酸盐水泥 35％Portland cement 35%
糯米粉 15％Glutinous rice flour 15%
硫化钼复合富勒烯材料 2％Molybdenum sulfide composite fullerene material 2%
膨胀蛭石粉 2％Expanded vermiculite powder 2%
3-8mm煤矸石粉碎料 余量。3-8mm coal gangue crushed material margin.
一种生态型建筑外墙阻燃干粉砂浆的制备方法，包括以下步骤：A preparation method of flame-retardant dry powder mortar for exterior walls of ecological buildings includes the following steps:
A、收集粉碎：将煤矸石集中回收，放入粉碎机中简单粉碎后，再加入2-5％的熟石灰粉混合后，反复粉碎至8mm以下的粒径；A. Collection and crushing: Collect coal gangue, put it in a crusher and simply crush it, add 2-5% slaked lime powder and mix it, and crush it repeatedly to a particle size below 8mm;
B、焙烧：将粉碎后的煤矸石粉碎料送入电窑，在800℃氧化条件下焙烧 2-3h；B. Roasting: send the crushed coal gangue pulverized material into an electric kiln, and roast it for 2-3h under 800℃ oxidation condition;
C、二次破碎：将焙烧后的煤矸石粉碎料送入破碎机中破碎，将颗粒筛分成三种规格，分别是3-8mm，1-3mm，0-1mm；C. Secondary crushing: The roasted coal gangue crushed material is sent to the crusher for crushing, and the particles are sieved into three specifications, namely 3-8mm, 1-3mm, 0-1mm;
D、应用：按照配方要求，将不同粒径的煤矸石粉碎料与其它原料共同搅拌均匀后，再次粉碎过筛，制成干粉砂浆。D. Application: According to the requirements of the formula, the coal gangue crushing materials of different particle sizes and other raw materials are mixed uniformly, then crushed and sieved again to make a dry mortar.
所述的焙烧步骤中需要不断的通入热空气。In the roasting step, it is necessary to continuously pass in hot air.
所述的焙烧步骤产生的尾气先通入生石灰水中再作为热源对冷空气进行加热，防止二氧化碳直接进入大气，造成污染。The tail gas generated in the roasting step is first passed into the quicklime water and then used as a heat source to heat the cold air, so as to prevent carbon dioxide from directly entering the atmosphere and causing pollution.
实施例3Example 3
一种生态型建筑外墙阻燃干粉砂浆，包括以下重量百分比的成分：A flame-retardant dry powder mortar for ecological building exterior walls, including the following components by weight percentage:
0-1mm煤矸石粉碎料 10％0-1mm coal gangue crushed material 10%
1-3mm煤矸石粉碎料 40％1-3mm coal gangue crushed material 40%
硅酸盐水泥 25％Portland cement 25%
糯米粉 8％Glutinous rice flour 8%
硫化钼复合富勒烯材料 1％Molybdenum sulfide composite fullerene material 1%
膨胀蛭石粉 8％Expanded vermiculite powder 8%
3-8mm煤矸石粉碎料 余量。3-8mm coal gangue crushed material margin.
一种生态型建筑外墙阻燃干粉砂浆的制备方法，包括以下步骤：A preparation method of flame-retardant dry powder mortar for exterior walls of ecological buildings includes the following steps:
A、收集粉碎：将煤矸石集中回收，放入粉碎机中简单粉碎后，再加入2-5％的熟石灰粉混合后，反复粉碎至8mm以下的粒径；A. Collection and crushing: Collect coal gangue, put it in a crusher and simply crush it, add 2-5% slaked lime powder and mix it, and crush it repeatedly to a particle size below 8mm;
B、焙烧：将粉碎后的煤矸石粉碎料送入电窑，在800℃氧化条件下焙烧2-3h；B. Roasting: send the pulverized coal gangue crushed material into an electric kiln, and roast it for 2-3h under 800℃ oxidation condition;
C、二次破碎：将焙烧后的煤矸石粉碎料送入破碎机中破碎，将颗粒筛分成 三种规格，分别是3-8mm，1-3mm，0-1mm；C. Secondary crushing: The roasted coal gangue crushed material is sent to the crusher for crushing, and the particles are screened into three specifications, namely 3-8mm, 1-3mm, 0-1mm;
D、应用：按照配方要求，将不同粒径的煤矸石粉碎料与其它原料共同搅拌均匀后，再次粉碎过筛，制成干粉砂浆。D. Application: According to the requirements of the formula, the coal gangue crushing materials of different particle sizes and other raw materials are mixed uniformly, then crushed and sieved again to make a dry mortar.
所述的焙烧步骤中需要不断的通入热空气。In the roasting step, it is necessary to continuously pass in hot air.
所述的焙烧步骤产生的尾气先通入生石灰水中再作为热源对冷空气进行加热，防止二氧化碳直接进入大气，造成污染。The tail gas generated in the roasting step is first passed into the quicklime water and then used as a heat source to heat the cold air, so as to prevent carbon dioxide from directly entering the atmosphere and causing pollution.
实施例4Example 4
一种生态型建筑外墙阻燃干粉砂浆，包括以下重量百分比的成分：A flame-retardant dry powder mortar for ecological building exterior walls, including the following components by weight percentage:
0-1mm煤矸石粉碎料 12.35％0-1mm coal gangue crushed material 12.35%
1-3mm煤矸石粉碎料 36％1-3mm coal gangue crushed material 36%
硅酸盐水泥 25％Portland cement 25%
糯米粉 8％Glutinous rice flour 8%
硫化钼复合富勒烯材料 1.8％Molybdenum sulfide composite fullerene material 1.8%
膨胀蛭石粉 8％Expanded vermiculite powder 8%
3-8mm煤矸石粉碎料 余量。3-8mm coal gangue crushed material margin.
一种生态型建筑外墙阻燃干粉砂浆的制备方法，包括以下步骤：A preparation method of flame-retardant dry powder mortar for exterior walls of ecological buildings includes the following steps:
A、收集粉碎：将煤矸石集中回收，放入粉碎机中简单粉碎后，再加入2-5％的熟石灰粉混合后，反复粉碎至8mm以下的粒径；A. Collection and crushing: Collect coal gangue, put it in a crusher and simply crush it, add 2-5% slaked lime powder and mix it, and crush it repeatedly to a particle size below 8mm;
B、焙烧：将粉碎后的煤矸石粉碎料送入电窑，在800℃氧化条件下焙烧2-3h；B. Roasting: send the pulverized coal gangue pulverized material into an electric kiln, and roast it for 2-3h under the oxidation condition of 800℃;
C、二次破碎：将焙烧后的煤矸石粉碎料送入破碎机中破碎，将颗粒筛分成三种规格，分别是3-8mm，1-3mm，0-1mm；C. Secondary crushing: The roasted coal gangue crushed material is sent to the crusher for crushing, and the particles are sieved into three specifications, namely 3-8mm, 1-3mm, 0-1mm;
D、应用：按照配方要求，将不同粒径的煤矸石粉碎料与其它原料共同搅拌 均匀后，再次粉碎过筛，制成干粉砂浆。D. Application: According to the requirements of the formula, the coal gangue crushing materials of different particle sizes and other raw materials are mixed uniformly, then crushed and sieved again to make dry mortar.
所述的焙烧步骤中需要不断的通入热空气。In the roasting step, it is necessary to continuously pass in hot air.
所述的焙烧步骤产生的尾气先通入生石灰水中再作为热源对冷空气进行加热，防止二氧化碳直接进入大气，造成污染。The tail gas generated in the roasting step is first passed into the quicklime water and then used as a heat source to heat the cold air, so as to prevent carbon dioxide from directly entering the atmosphere and causing pollution.
实施例5Example 5
一种生态型建筑外墙阻燃干粉砂浆，包括以下重量百分比的成分：A flame-retardant dry powder mortar for ecological building exterior walls, including the following components by weight percentage:
0-1mm煤矸石粉碎料 12％0-1mm coal gangue crushed material 12%
1-3mm煤矸石粉碎料 34％1-3mm coal gangue crushed material 34%
硅酸盐水泥 28％Portland cement 28%
糯米粉 8.5％Glutinous rice flour 8.5%
硫化钼复合富勒烯材料 1.5％Molybdenum sulfide composite fullerene material 1.5%
膨胀蛭石粉 8％Expanded vermiculite powder 8%
3-8mm煤矸石粉碎料 余量。3-8mm coal gangue crushed material margin.
一种生态型建筑外墙阻燃干粉砂浆的制备方法，包括以下步骤：A preparation method of flame-retardant dry powder mortar for exterior walls of ecological buildings includes the following steps:
A、收集粉碎：将煤矸石集中回收，放入粉碎机中简单粉碎后，再加入2-5％的熟石灰粉混合后，反复粉碎至8mm以下的粒径；A. Collection and crushing: Collect coal gangue, put it in a crusher and simply crush it, add 2-5% slaked lime powder and mix it, and crush it repeatedly to a particle size below 8mm;
B、焙烧：将粉碎后的煤矸石粉碎料送入电窑，在800℃氧化条件下焙烧2-3h；B. Roasting: send the pulverized coal gangue pulverized material into an electric kiln, and roast it for 2-3h under the oxidation condition of 800℃;
C、二次破碎：将焙烧后的煤矸石粉碎料送入破碎机中破碎，将颗粒筛分成三种规格，分别是3-8mm，1-3mm，0-1mm；C. Secondary crushing: The roasted coal gangue crushed material is sent to the crusher for crushing, and the particles are sieved into three specifications, namely 3-8mm, 1-3mm, 0-1mm;
D、应用：按照配方要求，将不同粒径的煤矸石粉碎料与其它原料共同搅拌均匀后，再次粉碎过筛，制成干粉砂浆。D. Application: According to the requirements of the formula, the coal gangue crushing materials of different particle sizes and other raw materials are mixed uniformly, then crushed and sieved again to make a dry mortar.
所述的焙烧步骤中需要不断的通入热空气。In the roasting step, it is necessary to continuously pass in hot air.
所述的焙烧步骤产生的尾气先通入生石灰水中再作为热源对冷空气进行加热，防止二氧化碳直接进入大气，造成污染。The tail gas generated in the roasting step is first passed into the quicklime water and then used as a heat source to heat the cold air, so as to prevent carbon dioxide from directly entering the atmosphere and causing pollution.
对比例1Comparative example 1
将实施例1中的硫化钼复合富勒烯材料去除，其余配比和制备方法不变。The molybdenum sulfide composite fullerene material in Example 1 was removed, and the remaining proportion and preparation method were unchanged.
对实施例1-4和对比例1生产的样品进行检测：Test the samples produced in Examples 1-4 and Comparative Example 1:
| 检测项目Test items | 实施例1Example 1 | 实施例2Example 2 | 实施例3Example 3 | 实施例4Example 4 | 对比例1Comparative example 1 |
| 抗压强度(MPa)Compressive strength (MPa) | 11.211.2 | 11.111.1 | 11.811.8 | 11.211.2 | 11.211.2 |
| 抗折强度(Mpa)Flexural strength (Mpa) | 3.53.5 | 3.83.8 | 3.13.1 | 3.23.2 | 3.23.2 |
| 与轻质砂加砌块粘结强度(Mpa)Bonding strength with light sand and block (Mpa) | 1.51.5 | 1.51.5 | 1.51.5 | 1.31.3 | 1.31.3 |
| 与现浇混凝土粘结强度(Mpa)Bonding strength with cast-in-place concrete (Mpa) | 1.21.2 | 1.21.2 | 1.21.2 | 1.11.1 | 1.11.1 |
| 初凝时间(h)Initial setting time (h) | 2.52.5 | 2.52.5 | 2.52.5 | 2.52.5 | 2.52.5 |
| 终凝时间(h)Final setting time (h) | 3.53.5 | 3.53.5 | 3.53.5 | 3.53.5 | 3.53.5 |
以上所述，仅为本发明较佳的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，根据本发明的技术方案及其发明构思加以等同替换或改变，都应涵盖在本发明的保护范围之内。The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Anyone familiar with the technical field within the technical scope disclosed by the present invention, according to the technical solution of the present invention Equivalent replacements or changes to its inventive concept should all fall within the protection scope of the present invention.
Claims (6)
- 一种生态型建筑外墙阻燃干粉砂浆，其特征在于，包括以下重量百分比的成分：A flame-retardant dry powder mortar for ecological building exterior walls, which is characterized in that it comprises the following components by weight percentage:0-1mm煤矸石粉碎料 10-18％0-1mm coal gangue crushed material 10-18%1-3mm煤矸石粉碎料 30-40％1-3mm coal gangue crushed material 30-40%硅酸盐水泥 25-35％Portland cement 25-35%糯米粉 8-15％Glutinous rice flour 8-15%硫化钼复合富勒烯材料 1-2％Molybdenum sulfide composite fullerene material 1-2%膨胀蛭石粉 2-8％Expanded vermiculite powder 2-8%3-8mm煤矸石粉碎料 余量。3-8mm coal gangue crushed material margin.
- 如权利要求1所述的生态型建筑外墙阻燃干粉砂浆，其特征在于，所述的硅酸盐水泥的型号为42.5R或者52.5R。The flame-retardant dry powder mortar for ecological building exterior walls according to claim 1, wherein the model of Portland cement is 42.5R or 52.5R.
- 如权利要求1所述的生态型建筑外墙阻燃干粉砂浆，其特征在于，所述的硅酸盐水泥的型号为42.5R。The flame-retardant dry powder mortar for ecological building exterior walls according to claim 1, wherein the model of Portland cement is 42.5R.
- 一种生态型建筑外墙阻燃干粉砂浆的制备方法，其特征在于，包括以下步骤：A preparation method of fire-retardant dry powder mortar for ecological building exterior walls, which is characterized in that it comprises the following steps:A、收集粉碎：将煤矸石集中回收，放入粉碎机中简单粉碎后，再加入2-5％的熟石灰粉混合后，反复粉碎至8mm以下的粒径；A. Collection and crushing: Collect coal gangue, put it in a crusher and simply crush it, add 2-5% slaked lime powder and mix it, and crush it repeatedly to a particle size below 8mm;B、焙烧：将粉碎后的煤矸石粉碎料送入电窑，在800℃氧化条件下焙烧2-3h；B. Roasting: send the pulverized coal gangue pulverized material into an electric kiln, and roast it for 2-3h under the oxidation condition of 800℃;C、二次破碎：将焙烧后的煤矸石粉碎料送入破碎机中破碎，将颗粒筛分成三种规格，分别是3-8mm，1-3mm，0-1mm；C. Secondary crushing: The roasted coal gangue crushed material is sent to the crusher for crushing, and the particles are sieved into three specifications, namely 3-8mm, 1-3mm, 0-1mm;D、应用：按照配方要求，将不同粒径的煤矸石粉碎料与其它原料共同搅拌均匀后，再次粉碎过筛，制成干粉砂浆。D. Application: According to the requirements of the formula, the coal gangue crushing materials of different particle sizes and other raw materials are mixed uniformly, then crushed and sieved again to make a dry mortar.
- 如权利要求4所述的生态型建筑外墙阻燃干粉砂浆的制备方法，其特征在于，所述的焙烧步骤中需要不断的通入热空气。The method for preparing flame-retardant dry powder mortar for ecological building exterior walls according to claim 4, characterized in that, in the roasting step, it is necessary to continuously pass in hot air.
- 如权利要求4所述的生态型建筑外墙阻燃干粉砂浆的制备方法，其特征在于，所述的焙烧步骤产生的尾气先通入生石灰水中，再作为热源对冷空气进行加热。The method for preparing flame-retardant dry powder mortar for ecological building exterior walls according to claim 4, characterized in that the tail gas generated in the roasting step is first passed into the quicklime water, and then used as a heat source to heat the cold air.
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