CN104774029A - Sintering flux for solid waste sintered porous heat insulation sheets, and preparation method and application thereof - Google Patents
Sintering flux for solid waste sintered porous heat insulation sheets, and preparation method and application thereof Download PDFInfo
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Abstract
The invention relates to a sintering flux for solid waste sintered porous heat insulation sheets, and a preparation method and an application thereof. The sintering flux comprises a rapid fluxing component, a stable fluxing component and a mild fluxing component; a mass ratio of the rapid fluxing component to the stable fluxing component is 0.5-2:1, and a mass ratio of the mild fluxing component to the stable fluxing component is 0.5-2:1; and the rapid fluxing component is borax, the stable fluxing component is glass powder, and the mild fluxing component is one or two of perlite and feldspar. The invention also provides the preparation method and the application of the sintering flux for solid waste sintered porous heat insulation sheets. The flux is added in the sintering process of the sintering flux for solid waste sintered porous heat insulation sheets to decrease the sintering temperature by 50-150DEG C, a large amount of waste mine tailings and industrial waste residues are used, and the utilization rate reaches 80%, so environment protection is facilitated, resources are saved, and waste discharge is reduced.
Description
Technical field
The invention belongs to solid waste and utilize technical field, relate to a kind of solid waste sintered porous heat insulation board sintering fluxing agent and preparation method and application.
Background technology
Mine tailing is the chief component of the waste after ore dressing, industrial solid castoff.The metallic ore, nonmetalliferous ore, coal, clay etc. of the annual extraction in countries in the world up to 10,000,000,000 more than t, mine tailing amount about 5,000,000,000 t of discharge, according to incompletely statistics, the mineral products that current China finds have kind more than 150, exploitation establishes more than 8000 mine, and accumulative production mine tailing 59.7 hundred million t, takes up an area 80,000 hm
2above, and every year still increasing with the speed of 3.0 hundred million t.Mine tailing adopts most of air storage for a long time, has both occupied a large amount of soils, has also easily caused dust pollution, wherein objectionable impurities through weathering, drench with rain, the as easy as rolling off a log polluted-water of corrosion of rainwash, harm environment.
China's mill tailings main mineral constituent is made up of silicate, aluminosilicate, carbonate minerals and trace metallic mineral, and chemical composition is with SiO
2, A1
2o
3, CaO, MgO, Fe
2o
3, K
2o, Na
2o is main, close to the composition that building ceramic material, glass and brick and tile etc. are required, can as the important raw mineral materials of building, pottery, glass industry, do raw material with mine tailing and make various building material product, cost compared with low, utilization ratio is high and consumption is large, both make use of refuse, decreased environmental pollution, again save a large amount of soil.Therefore, the whole utilization of mine tailing has important economic worth and development prospect.
Building energy consumption accounts for China's total energy consumption more than 1/3, and insulating layer of external wall can effectively completely cut off thermal exchange and greatly reduce energy consumption.But Shanghai " 11.15 " fire failure, the fire that CCTV's new building big fire etc. is caused by building thermal insulation material takes place frequently, and causes serious loss of life and personal injury and property damage, makes lagging material fire safety be subject to the public and unprecedentedly pay close attention to.Fire takes place frequently, and has expedited the emergence of building thermal insulation material fire protection regulation the severeest in China's history.On January 20th, 2012, house and town and country construction portion have printed and distributed " about carrying out State Council about the notice strengthening and improve firemanic suggestion ", the requirement architectural exterior insulation material strict implement Ministry of Public Security, house and town and country construction portion combine " covil construction exterior wall heat-preserving system and decoration of exterior wall fire prevention temporary provisions " (public logical No. (2009) 46, the word) printed and distributed, the combustionproperty of covil construction heat insulating material for external is preferably A level, and should lower than B2 level (combustible matl); Adopt B1(nonflammable material) and B2 level lagging material time, fire-blocking belt should be set according to the rules.
At present, A level fire-retardant heat-insulation material on market mainly contains 4 classes such as rock cotton board (bar), composite cement foam warming plate, aerated concrete panel, exterior insulation, rock wool contains a large amount of inorganic fibre, has a strong impact on environment and HUMAN HEALTH, and easily water suction, easily shrinks; Composite cement foam warming plate, aerated concrete panel water-intake rate is large, intensity is low, easy to crack, and thermal conductivity affects comparatively large by production technique, wayward; Exterior insulation is a kind of novel inorganic ceramic lagging material, adopts inorganic ceramic material as main raw material, through the closed-cell foam ceramic thermal insulation material of the high porosity of high-temperature roasting.There is good heat insulating, fire-protection rating be high, deformation coefficient is little, anti-aging, stable performance, eco-environmental prote are good, with plinth course and float coat consistency is good, security and stability is good, can with buildings with features such as life-spans.Visible, exterior insulation is a kind of more satisfactory wall heat insulation material, but owing to will, through the high-temperature roasting of 1200 DEG C, make the price of its material own slightly high, mass-producing application be restricted.Therefore, if suitable fusing assistant can be selected significantly to reduce firing temperature, and utilize discarded tailing on a large scale, just can reduce the production cost of exterior insulation from energy saving standard two aspect, expand its range of application.
Therefore, under the prerequisite substantially not changing existing production technique and working condition, the sintering fluxing agent that exploitation is suitable for high additive mine tailing sintered porous heat insulation board is significant to the production cost reducing exterior insulation.China Patent No. is disclose a kind of iron tailing sintered porous heat insulation board in the patent of invention specification sheets of ZL200910023626.3, wherein: iron tailings utilization ratio is 10% ~ 40%, Mine Tailings Utilization is lower, in addition, fusing assistant is the one in borax, potassium felspar sand, albite and plumbous oxide, firing temperature is at 1200 DEG C, and firing temperature is slightly high.China Patent No. is disclose a kind of foamed ceramic material and preparation method thereof in the patent of invention specification sheets of ZL201210190895.0, Mine Tailings Utilization can reach 65 ~ 85%, fusing assistant is at least one in sodium carbonate, Calcium Fluoride (Fluorspan), sodium phosphate, but swelling temperature and firing temperature are 1225 ~ 1300 DEG C, and firing temperature is higher.In sum, do not consider in foregoing invention patent specification and reasonable compatibility is carried out to fusing assistant, do not utilize mine tailing and low-temperature sintering angle to propose to be suitable for sintering fluxing agent of the high additive mine tailing sintered porous heat insulation board of existing production technique and working condition and preparation method thereof from high additive.
Summary of the invention
The object of this invention is to provide and a kind ofly can reduce solid waste sintered porous heat insulation board energy consumption, the solid waste sintered porous heat insulation board sintering fluxing agent improving solid waste sintered porous heat insulation board and preparation method, and provide a kind of by the application method of solid waste sintered porous heat insulation board sintering fluxing agent for the preparation of solid waste sintered porous heat insulation board.
For achieving the above object, the technical solution used in the present invention is, a kind of solid waste sintered porous heat insulation board sintering fluxing agent, by quick fluxing component, stablizes fluxing component and mild fluxing component forms; The mass ratio of quick fluxing component and stable fluxing component is 0.5 ~ 2:1, and the mass ratio of mild fluxing component and stable fluxing component is 0.5 ~ 2:1; Described quick fluxing component is borax, and stable fluxing component is glass powder, mild fluxing component be perlite, feldspar any one or two kinds of.
In described borax, the massfraction of each chemical constitution is: Na
2o 15-17%, B
2o
335-37%, H
2o 46-48%.
In described glass powder, the massfraction of each chemical constitution is: SiO
264 ~ 73%, Al
2o
33 ~ 9%, Na
2o 8 ~ 16%, CaO 6 ~ 9%, K
2o 0.5 ~ 2%.
Described mild fluxing component is the mixture of perlite, feldspar, and the mass ratio of perlite, feldspar is 1:0.5 ~ 1.
The preparation method of described solid waste sintered porous heat insulation board sintering fluxing agent, comprises the following steps: 1. that borax is dry, grinding obtains quick fluxing component; 2. discarded glass bottle or sheet glass are first carried out fragmentation, then dry, grinding, obtains stable fluxing component; 3. get any one or two kinds in perlite, feldspar, carry out fragmentation, then dry, grinding, obtains mild fluxing component; 4. take quick fluxing component in proportion, stablize fluxing component, mild fluxing component, namely obtain solid waste sintered porous heat insulation board sintering fluxing agent after stirring.
The application of described solid waste sintered porous heat insulation board sintering fluxing agent, comprise the following steps, get the raw material of following portions by weight respectively: solid waste sintered porous heat insulation board sintering fluxing agent 5 ~ 25 parts, solid waste 70 ~ 90 parts, whipping agent 1 ~ 10 part; Solid waste sintered porous heat insulation board sintering fluxing agent, solid waste, whipping agent are mixed to obtain mixture, add the water of mixture weight 5 ~ 15%, stir and obtain wet feed, then by wet feed granulation, obtain pellet, dry, then calcine, last cooling and demolding, obtains solid waste sintered porous heat insulation board.
Described calcining segmentation is carried out, and first paragraph is: room temperature rises to 300 DEG C, and temperature rise rate is 8 ~ 12 DEG C/min; Second segment is: 300 DEG C rise to 900 DEG C, and temperature rise rate is 3 ~ 6 DEG C/min; 3rd section is: 900 DEG C rise to 1100 DEG C ~ 1180 DEG C, and temperature rise rate is 0.8 ~ 1.2 DEG C/min; 4th section is: be incubated 0.5 ~ 2h at 1100 DEG C ~ 1180 DEG C.
Described whipping agent is made up of the raw material of following portions by weight: 15 ~ 25 parts, sodium carbonate, carborundum powder 15 ~ 25,55 ~ 65 parts, calcium phosphate.
Described solid waste is any one or several in iron tailings, Quartz Tails, bauxitic clay mine tailing, waste ceramic fragment, red mud, flyash.
The invention has the beneficial effects as follows: the first, first, introduce this strong fusing assistant containing boron type oxide of borax, utilize B
2o
3b-O key and SiO
2s-O tetrahedron directly connect, in connection procedure, make original positive tetrahedron configuration change, cause SiO
2stability own declines, thus reduces its melt temperature fast; Secondly, by introducing this effective fusing assistant of glass cullet powder, making material occur liquid phase at a lower temperature, accelerating diffusion and forming sosoloid to the solvency action of solid phase lattice is activated, particle response capacity is strengthened; Finally, by introducing perlite or this slow molten type fusing assistant of feldspar, the viscosity of adjustment integral system, expands the firing range of material, makes the requirement meeting commercial scale production.Finally, promote that high additive mine tailing sintered porous heat insulation board can burn till under lesser temps (1100-1180 DEG C) by the acting in conjunction of three kinds of dissimilar fusing assistants, compared to the prior art firing temperature reduces 50 DEG C ~ 150 DEG C, and there is wider firing temperature, make high additive mine tailing sintered porous heat insulation board obtain good physical and mechanical property, endurance quality and heat-insulating property simultaneously.The second, raw material that the present invention adopts, mainly industrial solid castoff and a small amount of industrial raw material, be conducive to protection of the environment, economize on resources, and reduces waste discharge.
Accompanying drawing explanation
Fig. 1 is preparation method's process flow diagram of solid waste sintered porous heat insulation board sintering fluxing agent of the present invention.
Embodiment
In order to understand the present invention better, illustrate content of the present invention further below in conjunction with embodiment, but content of the present invention is not only confined to the following examples.
Embodiment 1
A kind of solid waste sintered porous heat insulation board sintering fluxing agent, by quick fluxing component, stablize fluxing component and gently fluxing component form; The mass ratio of quick fluxing component and stable fluxing component is 2: 1, and the mass ratio of mild fluxing component and stable fluxing component is 1: 1; Described quick fluxing component is borax, and stable fluxing component is glass powder, and mild fluxing component is the mixture of perlite, feldspar, and the mass ratio of perlite, feldspar is 1: 1.
In described borax, the massfraction of each chemical constitution is: Na
2o 16%, B
2o
336%, H
2o 48%.
In described glass powder, the massfraction of each chemical constitution is: SiO
273%, Al
2o
39%, Na
2o 8%, CaO 9%, K
2o 1%.
The preparation method of described solid waste sintered porous heat insulation board sintering fluxing agent, comprises the following steps: 1. that borax is dry, grinding, after reaching 80 μm of conditions tailed over as being less than 10%, obtains quick fluxing component; 2. discarded glass bottle or sheet glass are first carried out fragmentation, then dry, grinding, after reaching 80 μm of conditions tailed over as being less than 10%, obtains stable fluxing component; 3. get perlite, feldspar in proportion, carry out fragmentation, then dry, grinding, obtains mild fluxing component; 4. take quick fluxing component in proportion, stablize fluxing component, mild fluxing component, namely obtain solid waste sintered porous heat insulation board sintering fluxing agent after stirring.
The application of described solid waste sintered porous heat insulation board sintering fluxing agent, comprises the following steps, gets the raw material of following portions by weight respectively: solid waste sintered porous heat insulation board sintering fluxing agent 13 parts, iron tailings 86 parts, whipping agent 1 part; Solid waste sintered porous heat insulation board sintering fluxing agent, iron tailings, whipping agent are mixed to obtain mixture, adds the water of mixture weight 10%, stir and obtain wet feed, then by wet feed granulation, obtain pellet, dry, then calcine; Described calcining segmentation is carried out, and first paragraph is: room temperature rises to 300 DEG C, and temperature rise rate is 10 DEG C/min; Second segment is: 300 DEG C rise to 900 DEG C, and temperature rise rate is 5 DEG C/min; 3rd section is: 900 DEG C rise to 1160 DEG C, and temperature rise rate is 1 DEG C/min; 4th section is: be incubated 1h at 1160 DEG C; Last cooling and demolding, obtains solid waste sintered porous heat insulation board.
Described whipping agent is made up of the raw material of following portions by weight: 20 parts, sodium carbonate, carborundum powder 20,60 parts, calcium phosphate.
The ultimate compression strength of solid waste sintered porous heat insulation board prepared by the present embodiment is 10.5MPa, and folding strength is 4.3MPa, and water-intake rate is 4.6%, and volume density is 520kg/m
3, thermal conductivity is 0.157W/m.K, and burning behavior class is A level.The requirement of fire resistance class requirement and national different areas building energy conservation 50% can be met, in the life-span same with buildings, there is good economic benefit and social benefit.
Embodiment 2
A kind of solid waste sintered porous heat insulation board sintering fluxing agent, by quick fluxing component, stablize fluxing component and gently fluxing component form; The mass ratio of quick fluxing component and stable fluxing component is 1:1, and the mass ratio of mild fluxing component and stable fluxing component is 2:1; Described quick fluxing component is borax, and stable fluxing component is glass powder, and mild fluxing component is perlite.
In described borax, the massfraction of each chemical constitution is: Na
2o 15%, B
2o
337%, H
2o 48%.
In described glass powder, the massfraction of each chemical constitution is: SiO
270%, Al
2o
36%, Na
2o 16%, CaO 6%, K
2o 2%.
The preparation method of described solid waste sintered porous heat insulation board sintering fluxing agent, comprises the following steps: 1. that borax is dry, grinding, after reaching 80 μm of conditions tailed over as being less than 10%, obtains quick fluxing component; 2. discarded glass bottle or sheet glass are first carried out fragmentation, then dry, grinding, after reaching 80 μm of conditions tailed over as being less than 10%, obtains stable fluxing component; 3. get perlite, carry out fragmentation, then dry, grinding, obtains mild fluxing component; 4. take quick fluxing component in proportion, stablize fluxing component, mild fluxing component, namely obtain solid waste sintered porous heat insulation board sintering fluxing agent after stirring.
The application of described solid waste sintered porous heat insulation board sintering fluxing agent, comprises the following steps, gets the raw material of following portions by weight respectively: solid waste sintered porous heat insulation board sintering fluxing agent 17 parts, 80 parts, flyash, whipping agent 3 parts; Solid waste sintered porous heat insulation board sintering fluxing agent, flyash, whipping agent are mixed to obtain mixture, adds the water of mixture weight 5%, stir and obtain wet feed, then by wet feed granulation, obtain pellet, dry, then calcine; Described calcining segmentation is carried out, and first paragraph is: room temperature rises to 300 DEG C, and temperature rise rate is 8 DEG C/min; Second segment is: 300 DEG C rise to 900 DEG C, and temperature rise rate is 3 DEG C/min; 3rd section is: 900 DEG C rise to 1150 DEG C, and temperature rise rate is 0.8 DEG C/min; 4th section is: be incubated 2h at 1150 DEG C; Last cooling and demolding, obtains solid waste sintered porous heat insulation board.
Described whipping agent is made up of the raw material of following portions by weight: 15 parts, sodium carbonate, carborundum powder 25,60 parts, calcium phosphate.
The ultimate compression strength of the solid waste sintered porous heat insulation board of preparation is 9.2MPa, and folding strength is 3.4MPa, and water-intake rate is 3.2%, and volume density is 450kg/m
3, thermal conductivity is 0.135W/m.K, and burning behavior class is A level.The requirement of fire resistance class requirement and national different areas building energy conservation 50% can be met, in the life-span same with buildings, there is good economic benefit and social benefit.
Embodiment 3
A kind of solid waste sintered porous heat insulation board sintering fluxing agent, by quick fluxing component, stablize fluxing component and gently fluxing component form; The mass ratio of quick fluxing component and stable fluxing component is 1:1, and the mass ratio of mild fluxing component and stable fluxing component is 1:1; Described quick fluxing component is borax, and stable fluxing component is glass powder, and mild fluxing component is feldspar.
In described borax, the massfraction of each chemical constitution is: Na
2o 17%, B
2o
337%, H
2o 46%.
In described glass powder, the massfraction of each chemical constitution is: SiO
270%, Al
2o
33%, Na
2o 16%, CaO 9%, K
2o 2%.
The preparation method of described solid waste sintered porous heat insulation board sintering fluxing agent, comprises the following steps: 1. that borax is dry, grinding, after reaching 80 μm of conditions tailed over as being less than 10%, obtains quick fluxing component; 2. discarded glass bottle or sheet glass are first carried out fragmentation, then dry, grinding, after reaching 80 μm of conditions tailed over as being less than 10%, obtains stable fluxing component; 3. get feldspar, carry out fragmentation, then dry, grinding, obtains mild fluxing component; 4. take quick fluxing component in proportion, stablize fluxing component, mild fluxing component, namely obtain solid waste sintered porous heat insulation board sintering fluxing agent after stirring.
The application of described solid waste sintered porous heat insulation board sintering fluxing agent, comprises the following steps, gets the raw material of following portions by weight respectively: solid waste sintered porous heat insulation board sintering fluxing agent 20 parts, red mud 75 parts, whipping agent 5 parts; Solid waste sintered porous heat insulation board sintering fluxing agent, red mud, whipping agent are mixed to obtain mixture, add the water of mixture weight 15%, stir and obtain wet feed, then by wet feed granulation, obtain pellet, dry, then calcine, last cooling and demolding, obtains solid waste sintered porous heat insulation board.Described calcining segmentation is carried out, and first paragraph is: room temperature rises to 300 DEG C, and temperature rise rate is 12 DEG C/min; Second segment is: 300 DEG C rise to 900 DEG C, and temperature rise rate is 6 DEG C/min; 3rd section is: 900 DEG C rise to 1100 DEG C, and temperature rise rate is 1.2 DEG C/min; 4th section is: be incubated 2h at 1100 DEG C.
Described whipping agent is made up of the raw material of following portions by weight: 20 parts, sodium carbonate, carborundum powder 15,65 parts, calcium phosphate.
The ultimate compression strength of solid waste sintered porous heat insulation board prepared by the present embodiment is 6.9MPa, and folding strength is 1.8MPa, and water-intake rate is 2.4%, and volume density is 330kg/m
3, thermal conductivity is 0.112W/m.K, and burning behavior class is A level.The requirement of fire resistance class requirement and national different areas building energy conservation 50% can be met, in the life-span same with buildings, there is good economic benefit and social benefit.
Embodiment 4
A kind of solid waste sintered porous heat insulation board sintering fluxing agent, by quick fluxing component, stablize fluxing component and gently fluxing component form; The mass ratio of quick fluxing component and stable fluxing component is 2:1, and the mass ratio of mild fluxing component and stable fluxing component is 2:1; Described quick fluxing component is borax, and stable fluxing component is glass powder, and mild fluxing component is the mixture of perlite, feldspar, and the mass ratio of perlite, feldspar is 0.5: 1.
In described borax, the massfraction of each chemical constitution is: Na
2o 17%, B
2o
335%, H
2o 48%.
In described glass powder, the massfraction of each chemical constitution is: SiO
264%, Al
2o
39%, Na
2o16%, CaO 9%, K
2o 2%.
The preparation method of described solid waste sintered porous heat insulation board sintering fluxing agent, comprises the following steps: 1. that borax is dry, grinding, after reaching 80 μm of conditions tailed over as being less than 10%, obtains quick fluxing component; 2. discarded glass bottle or sheet glass are first carried out fragmentation, then dry, grinding, after reaching 80 μm of conditions tailed over as being less than 10%, obtains stable fluxing component; 3. get perlite, feldspar in proportion, carry out fragmentation, then dry, grinding, obtains mild fluxing component; 4. take quick fluxing component in proportion, stablize fluxing component, mild fluxing component, namely obtain solid waste sintered porous heat insulation board sintering fluxing agent after stirring.
The application of described solid waste sintered porous heat insulation board sintering fluxing agent, comprise the following steps, get the raw material of following portions by weight respectively: solid waste sintered porous heat insulation board sintering fluxing agent 15 parts, waste ceramic fragment 75 parts, whipping agent 10 parts; Solid waste sintered porous heat insulation board sintering fluxing agent, waste ceramic fragment, whipping agent are mixed to obtain mixture, adds the water of mixture weight 8%, stir and obtain wet feed, then by wet feed granulation, obtain pellet, dry, then calcine; Described calcining segmentation is carried out, and first paragraph is: room temperature rises to 300 DEG C, and temperature rise rate is 10 DEG C/min; Second segment is: 300 DEG C rise to 900 DEG C, and temperature rise rate is 5 DEG C/min; 3rd section is: 900 DEG C rise to 1140 DEG C, and temperature rise rate is 1 DEG C/min; 4th section is: be incubated 0.5h at 1140 DEG C; Last cooling and demolding, obtains solid waste sintered porous heat insulation board.
Described whipping agent is made up of the raw material of following portions by weight: 25 parts, sodium carbonate, carborundum powder 15,60 parts, calcium phosphate.
The ultimate compression strength of solid waste sintered porous heat insulation board prepared by the present embodiment is 5.9MPa, and folding strength is 1.3MPa, and water-intake rate is 2.1%, and volume density is 300kg/m3, and thermal conductivity is 0.104W/m.K, and burning behavior class is A level.The requirement of fire resistance class requirement and national different areas building energy conservation 50% can be met, in the life-span same with buildings, there is good economic benefit and social benefit.
Embodiment 5
A kind of solid waste sintered porous heat insulation board sintering fluxing agent, by quick fluxing component, stablize fluxing component and gently fluxing component form; The mass ratio of quick fluxing component and stable fluxing component is 2:1, and the mass ratio of mild fluxing component and stable fluxing component is 0.5:1; Described quick fluxing component is borax, and stable fluxing component is glass powder, and mild fluxing component is the mixture of perlite, feldspar, and the mass ratio of perlite, feldspar is 1: 1.
In described borax, the massfraction of each chemical constitution is: Na
2o 16%, B
2o
337%, H
2o 47%.
In described glass powder, the massfraction of each chemical constitution is: SiO
270%, Al
2o
36%, Na
2o 16%, CaO 7.5%, K
2o 0.5%.
The preparation method of described solid waste sintered porous heat insulation board sintering fluxing agent, comprises the following steps: 1. that borax is dry, grinding, after reaching 80 μm of conditions tailed over as being less than 10%, obtains quick fluxing component; 2. discarded glass bottle or sheet glass are first carried out fragmentation, then dry, grinding, after reaching 80 μm of conditions tailed over as being less than 10%, obtains stable fluxing component; 3. get perlite, feldspar in proportion, carry out fragmentation, dry, grinding, obtains mild fluxing component; 4. take quick fluxing component in proportion, stablize fluxing component, mild fluxing component, namely obtain solid waste sintered porous heat insulation board sintering fluxing agent after stirring.
The application of described solid waste sintered porous heat insulation board sintering fluxing agent, comprises the following steps, gets the raw material of following portions by weight respectively: solid waste sintered porous heat insulation board sintering fluxing agent 5 parts, Quartz Tails 90 parts, whipping agent 5 parts; Solid waste sintered porous heat insulation board sintering fluxing agent, Quartz Tails, whipping agent are mixed to obtain mixture, adds the water of mixture weight 10%, stir and obtain wet feed, then by wet feed granulation, obtain pellet, dry, then calcine; Described calcining segmentation is carried out, and first paragraph is: room temperature rises to 300 DEG C, and temperature rise rate is 10 DEG C/min; Second segment is: 300 DEG C rise to 900 DEG C, and temperature rise rate is 5 DEG C/min; 3rd section is: 900 DEG C rise to 1180 DEG C, and temperature rise rate is 1 DEG C/min; 4th section is: be incubated 1h at 1180 DEG C; Last cooling and demolding, obtains solid waste sintered porous heat insulation board.
Described whipping agent is made up of the raw material of following portions by weight: 25 parts, sodium carbonate, carborundum powder 20,55 parts, calcium phosphate.
The ultimate compression strength of solid waste sintered porous heat insulation board prepared by the present embodiment is 7.0MPa, and folding strength is 1.9MPa, and water-intake rate is 3.4%, and volume density is 340kg/m3, and thermal conductivity is 0.113W/m.K, and burning behavior class is A level.The requirement of fire resistance class requirement and national different areas building energy conservation 50% can be met, in the life-span same with buildings, there is good economic benefit and social benefit.
Embodiment 6
A kind of solid waste sintered porous heat insulation board sintering fluxing agent, by quick fluxing component, stablize fluxing component and gently fluxing component form; The mass ratio of quick fluxing component and stable fluxing component is 0.5:1, and the mass ratio of mild fluxing component and stable fluxing component is 0.5:1; Described quick fluxing component is borax, and stable fluxing component is glass powder, and mild fluxing component is the mixture of perlite, feldspar, and the mass ratio of perlite, feldspar is 1: 1.
In described borax, the massfraction of each chemical constitution is: Na
2o 15%, B
2o
337%, H
2o 48%.
In described glass powder, the massfraction of each chemical constitution is: SiO
272%, Al
2o
38%, Na
2o 9%, CaO 9%, K
2o 2%.
The preparation method of described solid waste sintered porous heat insulation board sintering fluxing agent, comprises the following steps: 1. that borax is dry, grinding, after reaching 80 μm of conditions tailed over as being less than 10%, obtains quick fluxing component; 2. discarded glass bottle or sheet glass are first carried out fragmentation, then dry, grinding, after reaching 80 μm of conditions tailed over as being less than 10%, obtains stable fluxing component; 3. get perlite, feldspar in proportion, then carry out fragmentation, then dry, grinding, obtains mild fluxing component; 4. take quick fluxing component in proportion, stablize fluxing component, mild fluxing component, namely obtain solid waste sintered porous heat insulation board sintering fluxing agent after stirring.
The application of described solid waste sintered porous heat insulation board sintering fluxing agent, comprise the following steps, get the raw material of following portions by weight respectively: solid waste sintered porous heat insulation board sintering fluxing agent 25 parts, bauxitic clay mine tailing 70 parts, whipping agent 5 parts; Solid waste sintered porous heat insulation board sintering fluxing agent, bauxitic clay mine tailing, whipping agent are mixed to obtain mixture, adds the water of mixture weight 10%, stir and obtain wet feed, then by wet feed granulation, obtain pellet, dry, then calcine; Described calcining segmentation is carried out, and first paragraph is: room temperature rises to 300 DEG C, and temperature rise rate is 10 DEG C/min; Second segment is: 300 DEG C rise to 900 DEG C, and temperature rise rate is 5 DEG C/min; 3rd section is: 900 DEG C rise to 1100 DEG C, and temperature rise rate is 1 DEG C/min; 4th section is: be incubated 1.5h at 1100 DEG C; Last cooling and demolding, obtains solid waste sintered porous heat insulation board.
Described whipping agent is made up of the raw material of following portions by weight: 15 parts, sodium carbonate, carborundum powder 20,65 parts, calcium phosphate.
The ultimate compression strength of solid waste sintered porous heat insulation board prepared by the present embodiment is 6.5MPa, and folding strength is 1.6MPa, and water-intake rate is 2.3%, and volume density is 320kg/m
3, thermal conductivity is 0.109W/m.K, and burning behavior class is A level.The requirement of fire resistance class requirement and national different areas building energy conservation 50% can be met, in the life-span same with buildings, there is good economic benefit and social benefit.
Claims (9)
1. solid waste sintered porous heat insulation board sintering fluxing agent, is characterized in that, by quick fluxing component, stablizes fluxing component and mild fluxing component forms; The mass ratio of quick fluxing component and stable fluxing component is 0.5 ~ 2:1, and the mass ratio of mild fluxing component and stable fluxing component is 0.5 ~ 2:1; Described quick fluxing component is borax, and stable fluxing component is glass powder, mild fluxing component be perlite, feldspar any one or two kinds of.
2. solid waste sintered porous heat insulation board sintering fluxing agent as claimed in claim 1, it is characterized in that, in described borax, the massfraction of each chemical constitution is: Na
2o 15-17%, B
2o
335-37%, H
2o 46-48%.
3. solid waste sintered porous heat insulation board sintering fluxing agent as claimed in claim 1, it is characterized in that, in described glass powder, the massfraction of each chemical constitution is: SiO
264 ~ 73%, Al
2o
33 ~ 9%, Na
2o 8 ~ 16%, CaO 6 ~ 9%, K
2o 0.5 ~ 2%.
4. solid waste sintered porous heat insulation board sintering fluxing agent as claimed in claim 1, it is characterized in that, described mild fluxing component is the mixture of perlite, feldspar, and the mass ratio of perlite, feldspar is 1:0.5 ~ 1.
5. the preparation method of solid waste sintered porous heat insulation board sintering fluxing agent as claimed in claim 1, is characterized in that, comprise the following steps: 1. that borax is dry, grinding obtains quick fluxing component; 2. discarded glass bottle or sheet glass are first carried out fragmentation, then dry, grinding, obtains stable fluxing component; 3. get any one or two kinds in perlite, feldspar, carry out fragmentation, then dry, grinding, obtains mild fluxing component; 4. take quick fluxing component in proportion, stablize fluxing component, mild fluxing component, namely obtain solid waste sintered porous heat insulation board sintering fluxing agent after stirring.
6. the application of solid waste sintered porous heat insulation board sintering fluxing agent as claimed in claim 1, it is characterized in that, comprise the following steps, get the raw material of following portions by weight respectively: solid waste sintered porous heat insulation board sintering fluxing agent 5 ~ 25 parts, solid waste 70 ~ 90 parts, whipping agent 1 ~ 10 part; Solid waste sintered porous heat insulation board sintering fluxing agent, solid waste, whipping agent are mixed to obtain mixture, add the water of mixture weight 5 ~ 15%, stir and obtain wet feed, then by wet feed granulation, obtain pellet, dry, then calcine, last cooling and demolding, obtains solid waste sintered porous heat insulation board.
7. the application of solid waste sintered porous heat insulation board sintering fluxing agent as claimed in claim 6, it is characterized in that, described calcining segmentation is carried out, and first paragraph is: room temperature rises to 300 DEG C, and temperature rise rate is 8 ~ 12 DEG C/min; Second segment is: 300 DEG C rise to 900 DEG C, and temperature rise rate is 3 ~ 6 DEG C/min; 3rd section is: 900 DEG C rise to 1100 DEG C ~ 1180 DEG C, and temperature rise rate is 0.8 ~ 1.2 DEG C/min; 4th section is: be incubated 0.5 ~ 2h at 1100 DEG C ~ 1180 DEG C.
8. the application of solid waste sintered porous heat insulation board sintering fluxing agent as claimed in claim 6, it is characterized in that, described whipping agent is made up of the raw material of following portions by weight: 15 ~ 25 parts, sodium carbonate, carborundum powder 15 ~ 25,55 ~ 65 parts, calcium phosphate.
9. the application of solid waste sintered porous heat insulation board sintering fluxing agent as claimed in claim 6, it is characterized in that, described solid waste is any one or several in iron tailings, Quartz Tails, bauxitic clay mine tailing, waste ceramic fragment, red mud, flyash.
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| CN107353032A (en) * | 2017-07-13 | 2017-11-17 | 郑州大学 | A kind of exterior insulation and preparation method using industrial inorganic hazardous waste and fire clay mine tailing as raw material |
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| CN109437923B (en) * | 2018-12-25 | 2021-06-01 | 佛山科学技术学院 | Foamed ceramic and preparation method thereof |
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| CN107353032A (en) * | 2017-07-13 | 2017-11-17 | 郑州大学 | A kind of exterior insulation and preparation method using industrial inorganic hazardous waste and fire clay mine tailing as raw material |
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| CN109437923B (en) * | 2018-12-25 | 2021-06-01 | 佛山科学技术学院 | Foamed ceramic and preparation method thereof |
| CN110642600A (en) * | 2019-11-14 | 2020-01-03 | 济南大学 | Sintered brick using red mud as main raw material and preparation method thereof |
| CN113061049A (en) * | 2021-04-19 | 2021-07-02 | 山东理工大学 | High-strength red mud-based foamed ceramic and preparation method and application thereof |
| CN113387720A (en) * | 2021-07-08 | 2021-09-14 | 河南省高新技术实业有限公司 | Foamed ceramic thermal insulation material and preparation method thereof |
| CN115674399A (en) * | 2022-09-16 | 2023-02-03 | 广西晖龙科技有限公司 | Method and equipment for preparing foam self-insulation building block by using industrial smelting tailings |
| CN115674399B (en) * | 2022-09-16 | 2023-09-01 | 广西晖龙科技有限公司 | Method and equipment for preparing foam self-insulation building block by utilizing industrial smelting tailings |
| CN116283219A (en) * | 2023-02-27 | 2023-06-23 | 宁夏回族自治区矿产地质调查院(自治区矿产地质研究所) | Argil plate curtain wall reinforcing agent and preparation method and application thereof |
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