CN110357531A - A kind of compound heat insulation building block of iron tailings and preparation method thereof - Google Patents
A kind of compound heat insulation building block of iron tailings and preparation method thereof Download PDFInfo
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- CN110357531A CN110357531A CN201910683656.0A CN201910683656A CN110357531A CN 110357531 A CN110357531 A CN 110357531A CN 201910683656 A CN201910683656 A CN 201910683656A CN 110357531 A CN110357531 A CN 110357531A
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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
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/02—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls built-up from layers of building elements
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/40—Building elements of block or other shape for the construction of parts of buildings built-up from parts of different materials, e.g. composed of layers of different materials or stones with filling material or with insulating inserts
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/20—Resistance against chemical, physical or biological attack
- C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
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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
- C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
- C04B2111/40—Porous or lightweight materials
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/20—Mortars, concrete or artificial stone characterised by specific physical values for the density
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/30—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values
- C04B2201/32—Mortars, concrete or artificial stone characterised by specific physical values for heat transfer properties such as thermal insulation values, e.g. R-values for the thermal conductivity, e.g. K-factors
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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
- C04B2201/00—Mortars, concrete or artificial stone characterised by specific physical values
- C04B2201/50—Mortars, concrete or artificial stone characterised by specific physical values for the mechanical strength
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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Abstract
The invention discloses compound heat insulation building block of a kind of iron tailings and preparation method thereof, the compound heat insulation building block of iron tailings includes heat insulation inner core and the supporting frame that is coated on outside heat insulation inner core, and the weight proportion of the heat insulation inner core and supporting frame is 1 ~ 5:6 ~ 10；In parts by weight, the heat insulation inner core includes following components: 10 ~ 80 parts of iron tailings powder, 20 ~ 150 parts of cement, 10 ~ 40 parts of expanded perlite, 0.1 ~ 5 part of additive, 0.1 ~ 10 part of foaming agent, 0.08 ~ 0.2 part of foam stabilizer；The additive is made of melamine water reducing agent, rubber powder and carboxymethyl cellulose, and the weight ratio of the melamine water reducing agent, rubber powder and carboxymethyl cellulose is 1:0.5 ~ 1.5:1 ~ 10.This solid waste of iron tailings can be largely handled by means of the present invention, and preparation condition is simple, raw material is easy to get, and is easy to industrialize, and composite thermal self-insulation building block obtained has a wide range of applications again.In secure context, composite thermal self-insulation building block produced by the present invention is environmentally friendly and is difficult to burn.
Description
Technical field
The present invention relates to compound heat insulation building blocks of a kind of iron tailings and preparation method thereof.
Background technique
Mineral Resources in China exploitation total scale occupy world forefront, and the outstanding feature of China's iron ore deposit is that grade is low, total
Raw associated minerals are more, lead to that a large amount of iron tailings can be generated in ore dressing process, 2.5-3.0t tail will be discharged in every production 1t iron ore concentrate
Mine.Stockpiling iron tailings not only occupies a large amount of soils, also pollutes to soil, water body, air etc., destroys ecological environment, shadow
Sound is very big.
The stockpiling of tailing has very big negative effect to environment, also needs to build Tailings Dam, not only occupies a large amount of soil,
And to be safeguarded using a large amount of human resources and huge financial resource, considerably increase the money for tailing waste thing
Gold investment.And Tailings utilization is bulky grain part, for building filler.The aspect of thinner Tailings utilization is more after screening
It is few.
Number is organic material or rock wool to heat insulation inner core material used at present greatly absolutely, not environmentally or with security risk.
Summary of the invention
For above-mentioned technical problem of the existing technology, it is compound certainly that the purpose of the present invention is to provide a kind of iron tailings
Insulation blocks and preparation method thereof.This solid waste of iron tailings can be largely handled by means of the present invention, and is prepared
Condition is simple, and raw material is easy to get, and is easy to industrialize, and composite thermal self-insulation building block obtained has a wide range of applications again.In secure context,
Composite thermal self-insulation building block produced by the present invention is environmentally friendly and is difficult to burn.
The compound heat insulation building block of a kind of iron tailings, it is characterised in that including heat insulation inner core and be coated in heat preservation
The weight proportion of supporting frame outside core, the heat insulation inner core and supporting frame is 1 ~ 5:6 ~ 10；In parts by weight, institute
Stating heat insulation inner core includes following components: 10 ~ 80 parts of iron tailings powder, 20 ~ 150 parts of cement, and 10 ~ 40 parts of expanded perlite, addition
0.1 ~ 5 part of agent A, 0.1 ~ 10 part of foaming agent, 0.08 ~ 0.2 part of foam stabilizer；The additive A is by melamine water reducing agent, rubber powder
It being formed with carboxymethyl cellulose, the weight ratio of the melamine water reducing agent, rubber powder and carboxymethyl cellulose is 1: 0.5 ~
1.5: 1~10。
The compound heat insulation building block of a kind of iron tailings, it is characterised in that in parts by weight, in the heat preservation
Core includes following components: 20 ~ 40 parts of iron tailings powder, 50 ~ 100 parts of cement, and 20 ~ 30 parts of expanded perlite, additive A 1 ~ 5
Part, 0.5 ~ 2 part of foaming agent, 0.1 ~ 0.15 part of foam stabilizer；It is 1: 0.8 ~ 1.2: 1 ~ 3 that the additive A, which is by weight ratio,
Melamine water reducing agent, rubber powder and carboxymethyl cellulose composition.
The compound heat insulation building block of a kind of iron tailings, it is characterised in that the preparation method of the heat insulation inner core, packet
Include following steps:
S1: grinding iron tailings and be sieved, obtains iron tailings powder, spare；
S2: 10 ~ 80 parts of iron tailings powder, 20 ~ 150 parts of cement, 10 ~ 40 parts of expanded perlite and additive A obtained by step S1 are taken
0.1 ~ 5 part of mixing, adds 10 ~ 150 parts of water and stirs evenly, obtain concrete slurry A；
S3: 0.1 ~ 10 part of foaming agent, 0.08 ~ 0.2 part of foam stabilizer are taken and is diluted with 10 ~ 200 parts of water, the solution for diluting formation is being sent out
It is foamed after obtaining tiny and stable foam, is added into concrete slurry A obtained by step S2 in bubbler, is stirred
It is even, obtain mixed slurry B；
S4: obtaining mixed slurry B for step S3 and pour into mold, then 10 ~ 15h of constant pressure and dry, mixing slurry at a temperature of 20 ~ 35 DEG C
Moisture in material B gradually evaporates, and after mixed slurry B forms inner core solid in a mold, demoulding obtains the heat preservation of solid block
Inner core.
A kind of compound heat insulation building block of iron tailings, it is characterised in that the mesh for the iron tailings powder that step S1 is obtained
Number is more than 120 mesh；In step S4, before mixed slurry B pours into mold, mould inner surface carries out processing of putting the oil, in order to the later period
Demoulding.
The compound heat insulation building block of a kind of iron tailings, it is characterised in that in parts by weight, the load-bearing frame
Frame includes following components: 50 ~ 150 parts of iron tailings powder, 50 ~ 350 parts of cement, and 1 ~ 6 part of additive B, foaming agent 0.1 ~ 20
Part, 0.05 ~ 0.3 part of foam stabilizer；The additive B is made of melamine water reducing agent, rubber powder and hydroxymethyl cellulose, and described three
The weight ratio of poly cyanamid water-reducing agent, rubber powder and hydroxymethyl cellulose is 1: 0.5 ~ 2: 0.5 ~ 2.
The compound heat insulation building block of a kind of iron tailings, it is characterised in that in parts by weight, the load-bearing frame
Frame includes following components: 80 ~ 120 parts of iron tailings powder, 200 ~ 300 parts of cement, and 3 ~ 6 parts of additive B, 1 ~ 3 part of foaming agent,
0.08 ~ 0.2 part of foam stabilizer；The additive B is made of melamine water reducing agent, rubber powder and hydroxymethyl cellulose, the trimerization
The weight ratio of cyanamide water-reducing agent, rubber powder and hydroxymethyl cellulose is 1: 1: 1.
A kind of preparation method of the compound heat insulation building block of iron tailings, it is characterised in that the following steps are included:
M1: grinding iron tailings and be sieved, obtains iron tailings powder；
M2: taking obtained by step M1 50 ~ 150 parts of powder of iron tailings, and 50 ~ 350 parts and 1 ~ 6 part of additive B of cement, add 50 ~
300 parts of water stir evenly, and obtain concrete slurry C；
M3: 0.1 ~ 20 part of foaming agent, 0.05 ~ 0.3 part of foam stabilizer are taken and is diluted with 10 ~ 100 parts of water, the solution for diluting formation is being sent out
It is foamed after obtaining tiny and stable foam, is added into concrete slurry C obtained by step M2 in bubbler, is stirred
It is even, obtain mixed slurry D；
M4: by the heat insulation inner core fixed placement of solid block mould inside cavity centre, then by mixing obtained by step M3
Slurry D is poured into mold until mixed slurry D fills up the internal cavities of mold, and mixed slurry D covers the heat insulation inner core
It coats, then 10 ~ 15h of constant pressure and dry at a temperature of 20 ~ 35 DEG C, the moisture in mixed slurry D gradually evaporates, and is formed in a mold
The solid primary frame that the heat insulation inner core is coated；
M5: the primary frame for being coated with the heat insulation inner core in step M4 mold being demoulded, maintenance processing is then carried out,
Make the voltage endurance capability of primary frame reinforce obtaining final supporting frame, obtain by heat insulation inner core and is coated on outside heat insulation inner core
The compound heat insulation building block of iron tailings of the supporting frame composition in portion.
A kind of preparation method of the compound heat insulation building block of iron tailings, it is characterised in that the iron tail that step M1 is obtained
The mesh number at miberal powder end is more than 120 mesh；In step M4, before mixed slurry D pours into mold, mould inner surface carries out processing of putting the oil,
In order to later period demoulding.
The preparation method of the compound heat insulation building block of a kind of iron tailings, it is characterised in that in step M5, supported
The step of shield processing are as follows: the primary frame for being coated with heat insulation inner core after demoulding is put into the chest that humidity is 75 ~ 95% in 20
It conserves 7 ~ 21 days at ~ 45 DEG C, will be coated with later every 12h watering once to keep primary frame surface wettability during maintenance
The primary frame of heat insulation inner core takes out from chest, in dry hardening 25 ~ 30 days under room temperature.
By using above-mentioned technology, compared with prior art, the invention has the following beneficial effects:
1) present invention prepares heat insulation building block using Integral composite, and first preparing heat insulation inner core then will be as the mixed of external frame
Solidifying soil paste material is coated on outside heat insulation inner core, and an entirety is more readily formed compared to the plug-type heat insulation building block of inner core.
2) foaming agent that the present invention uses is a kind of substance for generating gas by chemical change to foam, foaming process
It is middle to need to add a small amount of water, but foam be added in cement etc. can play the role of it is more obvious diluted, and after foam-drying
Rupture, forms gap in cement skeleton, thus it can reduce in concrete the dosage of water and reducing finally close it is compound from
The thermal coefficient of insulation blocks product and its gross mass.And a kind of porous thermal insulation material of expanded perlite, resistance with higher
Combustion property, but the higher water absorption rate of expanded perlite limits its application in construction projects.Foaming agent is generally inflammable, but in water
Become nonflammable under mud skeleton, expanded perlite is added in heat insulation inner core and more increases its flame retardant property.
3) present invention uses the solid waste such as iron tailings for raw material, has carried out rationally to the lesser iron tailings of wherein partial size
It utilizes, by being to prepare raw material using cement, expanded perlite, microlight-type heat insulation inner core and external frame is prepared, thus real
The purpose for now largely handling fine grain iron tailings, on the one hand alleviates environmental pressure, reduces environmental pollution, while improving back
Utilization rate is received, environment protection requirement is met；
4) preparation time of heat insulation inner core of the invention is shorter, and preparation cost is lower, compared with common organic matter heat insulation inner core at
This is more cheap and has higher fire protecting performance.
5) preparation time of composite thermal self-insulation building block of the invention is shorter, and preparation cost is lower, compared with solid self-heat conserving
Building block has low in cost, and thermal coefficient is low, low density advantage.
6) in the preparation process of composite thermal self-insulation building block of the present invention, melamine water reducing agent can increase concrete slurry
Mobility, rubber powder, carboxymethyl cellulose and foam stabilizer resin increase the viscosity between each component, each component are made to be easy to be bonded in
Together.In heat insulation inner core product of the present invention, due to the architectural characteristic of expanded perlite, have between expanded perlite inside higher
Gap, cement and iron tailings powder form integral skeleton structure, be filled among expanded perlite granule between gap
Form insulation construction.Expanded perlite has light and crisp characteristic, reduces the density of heat insulation inner core to a certain extent, but it adds
Dosage is not easy excessively, to prevent reducing the compressive resistance of whole heat insulation building block.It joined carboxymethyl cellulose in the present invention to be used for
The viscosity for increasing concrete entirety, the concrete after preventing addition foaming agent is excessively dilute, but its additive amount should not be excessive, to prevent
It is excessively sticky.
Specific embodiment
The present invention is further explained in the light of specific embodiments, but the scope of protection of the present invention is not limited thereto.
In following embodiment and comparative example:
Iron tailings is from North China, the constituent mass percentage composition of iron tailings are as follows: SiO2 45.43%, CaO 13.81%,
MgO 13.10%, Al2O3 11.35%, Fe2O3 10.13%, surplus are impurity.
Cement model is P.O 42.5.
Foaming agent is foam concrete foamer, is purchased from Zhengzhou City Peng Yi chemical building material Co., Ltd.
Foam stabilizer is resin expanded cement foam stabilizer, is purchased from Jining Hua Kai resin Co., Ltd.
Melamine water reducing agent thinks shield building purchased from Nanchang rain purchased from Shanghai Chen Qi Chemical Industry Science Co., Ltd, rubber powder
Materials Co., Ltd, carboxymethyl cellulose are purchased from Dongguan City a century grand plan Chemical Industry Science Co., Ltd, expanded perlite purchased from letter
Yang Chengfei new material Science and Technology Ltd..
Embodiment 1:
A kind of compound heat insulation building block of iron tailings is by heat insulation inner core and the supporting frame group being coated on outside heat insulation inner core
At.The preparation method of the compound heat insulation building block of iron tailings, prepares heat insulation inner core first, then carries out outside heat insulation inner core
Portion coats the preparation process of supporting frame, and the compound heat insulation building block of the iron tailings is finally made.Heat insulation inner core and load-bearing frame
The weight proportion of frame is 3:7.
1. the preparation of heat insulation inner core, in parts by weight, steps are as follows:
1) iron tailings is ground to and crossed 120 meshes, obtains the iron tailings powder that mesh number is greater than 120 mesh；
2) take 30 parts of iron tailings powder, 90 parts of cement obtained by step 1), 30 parts of expanded perlite, 1 part of melamine water reducing agent,
1 part of rubber powder, 2 parts of carboxymethyl cellulose add 75 parts of water and stir evenly, obtain concrete slurry A；
3) 1 part of foaming agent, 0.1 part of foam stabilizer are taken, and is diluted with 20 parts of water, the solution for diluting formation foams in foam maker
After obtaining tiny and stable foam, it is added into concrete slurry A obtained by step S2, is uniformly mixed, obtains mixing slurry
Expect B；
4) mould inner surface is subjected to processing of putting the oil in advance, in order to later period demoulding.Mixed slurry B obtained by step 3) is poured into again
In mold, the moisture in subsequent constant pressure and dry 12h at a temperature of 30 ~ 35 DEG C, mixed slurry B gradually evaporates, and mixed slurry B is in mould
Inner core solid is formed in tool；
5) the inner core solid in step 4) mold is demoulded, obtains the heat insulation inner core of solid block.
2. the preparation of compound heat insulation building block, in parts by weight, steps are as follows:
S1: iron tailings is ground and crosses 120 meshes, obtains the iron tailings powder that mesh number is greater than 120 mesh；
S2: taking obtained by step S1 100 parts of powder of iron tailings, and 240 parts of cement, 2 parts of rubber powder, 2 parts of melamine water reducing agent, hydroxyl first
Base cellulose 2g adds 150 parts of water and stirs evenly, obtains concrete slurry C；
S3: 2 parts of foaming agent, 0.1 part of foam stabilizer are taken, and is diluted with 40 parts of water, the solution for diluting formation is sent out in foam maker
After bubble obtains tiny and stable foam, it is added into concrete slurry C obtained by step S2, is uniformly mixed, is mixed
Slurry D；
S4: carrying out processing of putting the oil for mould inner surface in advance, in order to later period demoulding.Top, the lower part of mold are opening, will
The lower openings of mold are sealed with transparent rubberized fabric, are then placed on the ground mold.Again by the solid block of above-mentioned preparation
Centre (the at this time transparent adhesive tape of heat insulation inner core bottom and mold lower part setting of the heat insulation inner core fixed placement in mould inside cavity
Cloth is pasted, and prevents heat insulation inner core from loosening), then mixed slurry D obtained by step S3 is poured into mold from the upper opening of mold
It is interior that until mixed slurry D fills up the internal cavities of mold, the heat insulation inner core is covered and is coated by mixed slurry D, then 25 ~
Moisture in constant pressure and dry 11h at a temperature of 30 DEG C, mixed slurry D gradually evaporates, and mixed slurry D forms solid first in a mold
Grade frame, and primary frame is coated on the outside of heat insulation inner core；
S5: the primary frame for being coated with heat insulation inner core in step S4 mold is demoulded (when demoulding, by transparent rubberized fabric from mould
Tear tool lower section), it is put into the chest that humidity is 90 ~ 95% and is conserved 10 days at 30 ~ 35 DEG C, spilt during maintenance every 12h
Water once to keep primary frame surface wettability, later takes out the primary frame for being coated with heat insulation inner core, in room from chest
Dry hardening 28 days under the conditions of temperature, the voltage endurance capability of primary frame greatly enhances to obtain final supporting frame, obtains by protecting
The compound heat insulation building block of iron tailings of warm inner core and the supporting frame being coated on outside heat insulation inner core composition.
Embodiment 2:
A kind of compound heat insulation building block of iron tailings is by heat insulation inner core and the supporting frame group being coated on outside heat insulation inner core
At.The preparation method of the compound heat insulation building block of iron tailings, prepares heat insulation inner core first, then carries out outside heat insulation inner core
Portion coats the preparation process of supporting frame, and the compound heat insulation building block of the iron tailings is finally made.Heat insulation inner core and load-bearing frame
The weight proportion of frame is 4:6.
The preparation process of heat insulation inner core repeats embodiment 1, but difference from Example 1 is: in heat insulation inner core
In the preparation process of preparation, the iron tailings powder additive amount in step 2 is substituted for 50 parts, the cement in step 2 is added
Amount is substituted for 120 parts, remaining condition is same as Example 1, final to be made from example 1 group into the different heat insulation inner core of content.
The preparation process of compound heat insulation building block repeats embodiment 1, but difference from Example 1 is: multiple
In the preparation process of mould assembly heat insulation building block, the iron tailings powder additive amount in step S2 is substituted for 80 parts, it will be in step S2
Cement additive amount be substituted for 210 parts, the step S4 heat insulation inner core being added is substituted for heat insulation inner core manufactured in the present embodiment,
Remaining condition is same as Example 1, and the iron tailings that the weight proportion of final obtained heat insulation inner core and supporting frame is 4:6 is compound certainly
Insulation blocks.
Embodiment 3:
A kind of compound heat insulation building block of iron tailings is by heat insulation inner core and the supporting frame group being coated on outside heat insulation inner core
At.The preparation method of the compound heat insulation building block of iron tailings, prepares heat insulation inner core first, then carries out outside heat insulation inner core
Portion coats the preparation process of supporting frame, and the compound heat insulation building block of the iron tailings is finally made.Heat insulation inner core and load-bearing frame
The weight proportion of frame is 2:8.
The preparation process of heat insulation inner core repeats embodiment 1, but difference from Example 1 is: in heat insulation inner core
In the preparation process of preparation, the iron tailings powder additive amount in step 2 is substituted for 20 parts, the cement in step 2 is added
Amount is substituted for 50 parts, remaining condition is same as Example 1, final to be made from example 1 group into the different heat insulation inner core of content.
The preparation process of compound heat insulation building block repeats embodiment 1, but difference from Example 1 is: multiple
In the preparation process of mould assembly heat insulation building block, the iron tailings powder additive amount in step S2 is substituted for 120 parts, it will be in step S2
Cement additive amount be substituted for 275 parts, the step S4 heat insulation inner core being added is substituted for heat insulation inner core manufactured in the present embodiment,
Remaining condition is same as Example 1, and the iron tailings that the weight proportion of final obtained heat insulation inner core and supporting frame is 2:8 is compound certainly
Insulation blocks.
Embodiment 4:
A kind of compound heat insulation building block of iron tailings is by heat insulation inner core and the supporting frame group being coated on outside heat insulation inner core
At.The preparation method of the compound heat insulation building block of iron tailings, prepares heat insulation inner core first, then carries out outside heat insulation inner core
Portion coats the preparation process of supporting frame, and the compound heat insulation building block of the iron tailings is finally made.Heat insulation inner core and load-bearing frame
The weight proportion of frame is 3:7.
The preparation process of heat insulation inner core repeats embodiment 1.
The preparation process of compound heat insulation building block repeats embodiment 1, but difference from Example 1 is: multiple
In the preparation process of mould assembly heat insulation building block, the iron tailings powder additive amount in step S2 is substituted for 120 parts, it will be in step S2
Cement additive amount be substituted for 220 parts, remaining condition is same as Example 1, finally the obtained compound heat insulation building block of iron tailings.
Embodiment 5:
A kind of compound heat insulation building block of iron tailings is by heat insulation inner core and the supporting frame group being coated on outside heat insulation inner core
At.The preparation method of the compound heat insulation building block of iron tailings, prepares heat insulation inner core first, then carries out outside heat insulation inner core
Portion coats the preparation process of supporting frame, and the compound heat insulation building block of the iron tailings is finally made.Heat insulation inner core and load-bearing frame
The weight proportion of frame is 3:7.
The preparation process of heat insulation inner core repeats embodiment 1.
The preparation process of compound heat insulation building block repeats embodiment 1, but difference from Example 1 is: multiple
In the preparation process of mould assembly heat insulation building block, the iron tailings powder additive amount in step S2 is substituted for 120 parts, it will be in step S2
Cement additive amount be substituted for 250 parts, remaining condition is same as Example 1, finally the obtained compound heat insulation building block of iron tailings.
Embodiment 6:
A kind of compound heat insulation building block of iron tailings is by heat insulation inner core and the supporting frame group being coated on outside heat insulation inner core
At.The preparation method of the compound heat insulation building block of iron tailings, prepares heat insulation inner core first, then carries out outside heat insulation inner core
Portion coats the preparation process of supporting frame, and the compound heat insulation building block of the iron tailings is finally made.Heat insulation inner core and load-bearing frame
The weight proportion of frame is 3:7.
The preparation process of heat insulation inner core repeats embodiment 1.
The preparation process of compound heat insulation building block repeats embodiment 1, but difference from Example 1 is: multiple
In the preparation process of mould assembly heat insulation building block, the cement additive amount in step S2 is substituted for 220 parts, remaining condition and embodiment
1 is identical, finally the obtained compound heat insulation building block of iron tailings.
Comparative example 1:
A kind of compound heat insulation building block of iron tailings is by heat insulation inner core and the supporting frame group being coated on outside heat insulation inner core
At.The preparation method of the compound heat insulation building block of iron tailings, prepares heat insulation inner core first, then carries out outside heat insulation inner core
Portion coats the preparation process of supporting frame, and the compound heat insulation building block of the iron tailings is finally made.Heat insulation inner core and load-bearing frame
The weight proportion of frame is 3:7.
The preparation process of heat insulation inner core repeats embodiment 1, but difference from Example 1 is: in heat insulation inner core
In the preparation process of preparation, the additive amount of foaming agent and foam stabilizer in step 3) is substituted for 0 part, remaining condition and implementation
Example 1 is identical, the final heat insulation inner core being made and example 1 group is essentially identical at content.
The preparation process of compound heat insulation building block repeats embodiment 1, but difference from Example 1 is: multiple
In the preparation process of mould assembly heat insulation building block, the additive amount of foaming agent and foam stabilizer in step S3 is substituted for 0 part, will be walked
The heat insulation inner core for the heat insulation inner core alternative costs comparative example preparation that rapid S4 is added, remaining condition is same as Example 1, final to be made
The compound heat insulation building block of iron tailings.
Comparative example 2:
A kind of compound heat insulation building block of iron tailings is by heat insulation inner core and the supporting frame group being coated on outside heat insulation inner core
At.The preparation method of the compound heat insulation building block of iron tailings, prepares heat insulation inner core first, then carries out outside heat insulation inner core
Portion coats the preparation process of supporting frame, and the compound heat insulation building block of the iron tailings is finally made.Heat insulation inner core and load-bearing frame
The weight proportion of frame is 3:7.
The preparation process of heat insulation inner core repeats embodiment 1, but difference from Example 1 is: in heat insulation inner core
In the preparation process of preparation, the additive amount of the expanded perlite in step 2 is replaced with 0 part, remaining condition and 1 phase of embodiment
Together, final to be made from example 1 group into the different heat insulation inner core of content.
The preparation process of compound heat insulation building block repeats embodiment 1, but difference from Example 1 is: multiple
In the preparation process of mould assembly heat insulation building block, in the heat preservation for the heat insulation inner core alternative costs comparative example preparation that step S4 is added
Core, remaining condition is same as Example 1, finally the obtained compound heat insulation building block of iron tailings.
Comparative example 3:
A kind of compound heat insulation building block of iron tailings is by heat insulation inner core and the supporting frame group being coated on outside heat insulation inner core
At.The preparation method of the compound heat insulation building block of iron tailings, prepares heat insulation inner core first, then carries out outside heat insulation inner core
Portion coats the preparation process of supporting frame, and the compound heat insulation building block of the iron tailings is finally made.Heat insulation inner core and load-bearing frame
The weight proportion of frame is 3:7.
The preparation process of heat insulation inner core repeats embodiment 1, but difference from Example 1 is: in heat insulation inner core
In the preparation process of preparation, the additive amount of the expanded perlite in step 2 is replaced with 100 parts, remaining condition and embodiment 1
It is identical, it is final to be made from example 1 group into the different heat insulation inner core of content.
The preparation process of compound heat insulation building block repeats embodiment 1, but difference from Example 1 is: multiple
In the preparation process of mould assembly heat insulation building block, in the heat preservation for the heat insulation inner core alternative costs comparative example preparation that step S4 is added
Core, remaining condition is same as Example 1, finally the obtained compound heat insulation building block of iron tailings.
Comparative example 4:
A kind of compound heat insulation building block of iron tailings is by heat insulation inner core and the supporting frame group being coated on outside heat insulation inner core
At.The preparation method of the compound heat insulation building block of iron tailings, prepares heat insulation inner core first, then carries out outside heat insulation inner core
Portion coats the preparation process of supporting frame, and the compound heat insulation building block of the iron tailings is finally made.Heat insulation inner core and load-bearing frame
The weight proportion of frame is 3:7.
The preparation process of heat insulation inner core repeats embodiment 1.
The preparation process of compound heat insulation building block repeats embodiment 1, but difference from Example 1 is: multiple
In the preparation process of mould assembly heat insulation building block, the iron tailings powder additive amount in step S2 is replaced with 240 parts, remaining condition with
Embodiment 1 is identical, finally the obtained compound heat insulation building block of iron tailings.
Comparative example 5:
A kind of compound heat insulation building block of iron tailings is by heat insulation inner core and the supporting frame group being coated on outside heat insulation inner core
At.The preparation method of the compound heat insulation building block of iron tailings, prepares heat insulation inner core first, then carries out outside heat insulation inner core
Portion coats the preparation process of supporting frame, and the compound heat insulation building block of the iron tailings is finally made.Heat insulation inner core and load-bearing frame
The weight proportion of frame is 3:7.
The preparation process of heat insulation inner core repeats embodiment 1.
The preparation process of compound heat insulation building block repeats embodiment 1, but difference from Example 1 is: multiple
In the preparation process of mould assembly heat insulation building block, the cement additive amount in step S2 is replaced with 400 parts, remaining condition and embodiment
1 is identical, finally the obtained compound heat insulation building block of iron tailings.
Thermal coefficient and pressure resistance are carried out to the compound heat insulation building block of iron tailings made from embodiment 1 ~ 6 and comparative example 1 ~ 5
The measured performance parameter of ability, measurement result are shown in Table 1.In table 1, the measurement standard of compressive resistance and thermal coefficient is JG T
266-2011。
Table 1
As it can be seen from table 1 increasing the quality accounting of heat insulation inner core in implementation composite thermal self-insulation building block prepared by embodiment 1 ~ 3
Its thermal coefficient can be reduced but its compressive resistance can be reduced.It is thermally conductive to will increase its if increasing mass ratio shared by external frame on the contrary
Coefficient and compressive resistance.Cost and voltage endurance capability are considered it is thus determined that the two optimum quality ratio is 3:7.Prepared by embodiment 4 ~ 6
In composite thermal self-insulation building block, its density can slightly be reduced by improving iron tailings dosage, but will lead to the reduction of pressure-resistant performance；Improve water
The dosage of mud can increase its compressive resistance but will increase its density and cost；Increase the dosage energy of heat insulation inner core expanded perlite
Reduce its density but its pressure-resistant performance can be reduced accordingly, it is thus determined that most ratio of greater inequality is score meter by weight, heat insulation inner core by
Following components composition: 30 parts of iron tailings powder, 60 parts of cement, 30 parts of expanded perlite, 1 part of water-reducing agent, 1 part of rubber powder, carboxymethyl
2 parts of cellulose, 1 part of foaming agent, 0.1 part of foam stabilizer.External frame is composed of the following components: 100 parts of iron tailings powder, cement
230 parts, 2 parts of rubber powder, 2 parts of water-reducing agent, 1 part of carboxymethyl cellulose, 2 parts of foaming agent, 0.1 part of foam stabilizer.
As it can be seen from table 1 relative to composite thermal self-insulation building block prepared by embodiment 1 ~ 4, it is 1 dry density of comparative example, thermally conductive
Coefficient and pressure-resistant coefficient are larger, this is because do not foam, it is small compared to embodiment 1 in phase homogenous quantities lower volume, and building block
Whole more thick and solid centre does not have foam that thermal coefficient and pressure-resistant coefficient is caused to rise.
The volume of inner core is caused to reduce since expanded perlite not being added in comparative example 2, so that it is close to do composite block
The rising of degree.And expanded perlite is one of main thermal insulation material, the thermal coefficient for the composite block for being without using it substantially on
It rises.
Composite thermal self-insulation building block dry density prepared by comparative example 3 is smaller and compressive resistance is lower.This is because comparative example 3 exists
The inner core of composite thermal self-insulation building block increases expanded perlite in the dosage of inner core, the volume of expanded perlite during the preparation process
It is larger, if the dosage of expanded perlite is excessive, the position of more script concrete will be occupied, cause the reduction of core strength.
In the preparation process of 4 composite thermal self-insulation building block of comparative example, dosage and water of the iron tailings in external frame are increased
Mud forms skeleton structure, and iron tailings itself makes in the drying process that there may be viscous for certain parts there is no cementitiousness
Inadequate phenomenon is spent, so as to cause voltage endurance capability reduction.
In comparative example 5, increase quality of the cement in external frame, result in composite thermal self-insulation building block intensity, density,
Thermal coefficient increases, this is because cement is more to lead to more difficult foaming, it is solid characteristic after formation concrete, to a certain degree
Compressive resistance in upper increase overall structure, but solid construction heat transfer is rapidly, so increasing hot coefficient, and keeps entirety compound certainly
Insulation blocks in it is heavy with involve great expense.
By above embodiments and comparative example it is found that it is original that the present invention provides one kind with iron tailings, cement, expanded perlite
The method that material prepares composite thermal self-insulation building block, comprising: the thinner iron tailings resource of particle is recycled；Carrying out a series of original
After material screen choosing, raw material proportioning, post-processing, there is composite thermal self-insulation building block obtained preferable compressive property and lower
Thermal coefficient；Guarantor's composite thermal self-insulation building block obtained is also in fields extensive applications such as heat preservation, buildings.It is provided by the invention multiple
The preparation condition for closing heat insulation building block is mild, and short preparation period largely handles solid waste, is easy to industrialize.
Content described in this specification is only to enumerate to inventive concept way of realization, and protection scope of the present invention is not answered
When the concrete form for being seen as limited by embodiment and being stated.
Claims (9)
1. a kind of compound heat insulation building block of iron tailings, it is characterised in that including heat insulation inner core and be coated on outside heat insulation inner core
Supporting frame, the weight proportion of the heat insulation inner core and supporting frame is 1 ~ 5:6 ~ 10；In parts by weight, the heat preservation
Inner core includes following components: 10 ~ 80 parts of iron tailings powder, 20 ~ 150 parts of cement, and 10 ~ 40 parts of expanded perlite, additive A 0.1
~ 5 parts, 0.1 ~ 10 part of foaming agent, 0.08 ~ 0.2 part of foam stabilizer；The additive A is by melamine water reducing agent, rubber powder and carboxymethyl
Cellulose composition, the weight ratio of the melamine water reducing agent, rubber powder and carboxymethyl cellulose are 1: 0.5 ~ 1.5: 1 ~ 10.
2. the compound heat insulation building block of a kind of iron tailings according to claim 1, it is characterised in that according to parts by weight
Meter, the heat insulation inner core includes following components: 20 ~ 40 parts of iron tailings powder, 50 ~ 100 parts of cement, and expanded perlite 20 ~ 30
Part, 1 ~ 5 part of additive A, 0.5 ~ 2 part of foaming agent, 0.1 ~ 0.15 part of foam stabilizer；It is 1 that the additive A, which is by weight ratio:
0.8 ~ 1.2: 1 ~ 3 melamine water reducing agent, rubber powder and carboxymethyl cellulose composition.
3. the compound heat insulation building block of a kind of iron tailings according to claim 1, it is characterised in that the heat insulation inner core
Preparation method, comprising the following steps:
S1: grinding iron tailings and be sieved, obtains iron tailings powder, spare；
S2: 10 ~ 80 parts of iron tailings powder, 20 ~ 150 parts of cement, 10 ~ 40 parts of expanded perlite and additive A obtained by step S1 are taken
0.1 ~ 5 part of mixing, adds 10 ~ 150 parts of water and stirs evenly, obtain concrete slurry A；
S3: 0.1 ~ 10 part of foaming agent, 0.08 ~ 0.2 part of foam stabilizer are taken and is diluted with 10 ~ 200 parts of water, the solution for diluting formation is being sent out
It is foamed after obtaining tiny and stable foam, is added into concrete slurry A obtained by step S2 in bubbler, is stirred
It is even, obtain mixed slurry B；
S4: obtaining mixed slurry B for step S3 and pour into mold, then 10 ~ 15h of constant pressure and dry, mixing slurry at a temperature of 20 ~ 35 DEG C
Moisture in material B gradually evaporates, and after mixed slurry B forms inner core solid in a mold, demoulding obtains the heat preservation of solid block
Inner core.
4. the compound heat insulation building block of a kind of iron tailings according to claim 3, it is characterised in that the iron that step S1 is obtained
The mesh number of tailing powder is more than 120 mesh；In step S4, before mixed slurry B pours into mold, mould inner surface carries out the place that puts the oil
Reason, in order to later period demoulding.
5. the compound heat insulation building block of a kind of iron tailings according to claim 1, it is characterised in that according to parts by weight
Meter, the supporting frame includes following components: 50 ~ 150 parts of iron tailings powder, 50 ~ 350 parts of cement, and 1 ~ 6 part of additive B,
0.1 ~ 20 part of foaming agent, 0.05 ~ 0.3 part of foam stabilizer；The additive B is by melamine water reducing agent, rubber powder and hydroxylmethyl cellulose
Element composition, the weight ratio of the melamine water reducing agent, rubber powder and hydroxymethyl cellulose are 1: 0.5 ~ 2: 0.5 ~ 2.
6. the compound heat insulation building block of a kind of iron tailings according to claim 5, it is characterised in that according to parts by weight
Meter, the supporting frame includes following components: 80 ~ 120 parts of iron tailings powder, 200 ~ 300 parts of cement, and 3 ~ 6 parts of additive B,
1 ~ 3 part of foaming agent, 0.08 ~ 0.2 part of foam stabilizer；The additive B is by melamine water reducing agent, rubber powder and hydroxymethyl cellulose group
At the weight ratio of the melamine water reducing agent, rubber powder and hydroxymethyl cellulose is 1: 1: 1.
7. a kind of preparation method of the compound heat insulation building block of iron tailings according to claim 1, it is characterised in that including
Following steps:
M1: grinding iron tailings and be sieved, obtains iron tailings powder；
M2: taking obtained by step M1 50 ~ 150 parts of powder of iron tailings, and 50 ~ 350 parts and 1 ~ 6 part of additive B of cement, add 50 ~
300 parts of water stir evenly, and obtain concrete slurry C；
M3: 0.1 ~ 20 part of foaming agent, 0.05 ~ 0.3 part of foam stabilizer are taken and is diluted with 10 ~ 100 parts of water, the solution for diluting formation is being sent out
It is foamed after obtaining tiny and stable foam, is added into concrete slurry C obtained by step M2 in bubbler, is stirred
It is even, obtain mixed slurry D；
M4: by the heat insulation inner core fixed placement of solid block mould inside cavity centre, then by mixing obtained by step M3
Slurry D is poured into mold until mixed slurry D fills up the internal cavities of mold, and mixed slurry D covers the heat insulation inner core
It coats, then 10 ~ 15h of constant pressure and dry at a temperature of 20 ~ 35 DEG C, the moisture in mixed slurry D gradually evaporates, and is formed in a mold
The solid primary frame that the heat insulation inner core is coated；
M5: the primary frame for being coated with the heat insulation inner core in step M4 mold being demoulded, maintenance processing is then carried out,
Make the voltage endurance capability of primary frame reinforce obtaining final supporting frame, obtain by heat insulation inner core and is coated on outside heat insulation inner core
The compound heat insulation building block of iron tailings of the supporting frame composition in portion.
8. a kind of preparation method of the compound heat insulation building block of iron tailings according to claim 7, it is characterised in that step
The mesh number for the iron tailings powder that M1 is obtained is more than 120 mesh；In step M4, before mixed slurry D pours into mold, mould inner surface into
Capable processing of putting the oil, in order to later period demoulding.
9. a kind of preparation method of the compound heat insulation building block of iron tailings according to claim 7, it is characterised in that step
In M5, the step of maintenance is handled is carried out are as follows: it is 75 ~ 95% that the primary frame for being coated with heat insulation inner core after demoulding, which is put into humidity,
Chest in conserved 7 ~ 21 days at 20 ~ 45 DEG C, every 12h watering once to keep primary frame surface wettability during maintenance,
The primary frame for being coated with heat insulation inner core is taken out from chest later, in dry hardening 25 ~ 30 days under room temperature.
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| CN112661530A (en) * | 2021-01-20 | 2021-04-16 | 东北大学 | Aerated concrete block prepared by blending iron tailings and preparation method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503266A (en) * | 2011-10-25 | 2012-06-20 | 中国十五冶金建设集团有限公司 | Light-weight heat-preservation wall body material mixed with iron tailings at large proportion and preparation method thereof |
| CN104402348A (en) * | 2014-10-23 | 2015-03-11 | 天元建设集团有限公司 | Iron tailing powder foam concrete and preparation method thereof |
| CN105236893A (en) * | 2015-09-30 | 2016-01-13 | 湖北理工学院 | Iron tailing doped superlight perlite insulation board and preparation method thereof |
| CN106193346A (en) * | 2016-07-08 | 2016-12-07 | 中国冶金矿业长春矿产资源开发有限公司 | Iron ore mine foam concrete composite insulation boards and manufacture method |
| CN106278377A (en) * | 2016-08-15 | 2017-01-04 | 马鞍山十七冶工程科技有限责任公司 | A kind of full regeneration lightweight aggregate concrete self-insulating light wallboard and preparation method |
| CN107009484A (en) * | 2017-04-25 | 2017-08-04 | 天津和兴源建筑工程有限公司 | A kind of preparation method of high performance concrete Self-heat-insulation composite building block |
| CN107759244A (en) * | 2017-11-20 | 2018-03-06 | 武汉科技大学 | A kind of mine tailing light-weight insulating brick and preparation method thereof |
-
2019
- 2019-07-26 CN CN201910683656.0A patent/CN110357531B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102503266A (en) * | 2011-10-25 | 2012-06-20 | 中国十五冶金建设集团有限公司 | Light-weight heat-preservation wall body material mixed with iron tailings at large proportion and preparation method thereof |
| CN104402348A (en) * | 2014-10-23 | 2015-03-11 | 天元建设集团有限公司 | Iron tailing powder foam concrete and preparation method thereof |
| CN105236893A (en) * | 2015-09-30 | 2016-01-13 | 湖北理工学院 | Iron tailing doped superlight perlite insulation board and preparation method thereof |
| CN106193346A (en) * | 2016-07-08 | 2016-12-07 | 中国冶金矿业长春矿产资源开发有限公司 | Iron ore mine foam concrete composite insulation boards and manufacture method |
| CN106278377A (en) * | 2016-08-15 | 2017-01-04 | 马鞍山十七冶工程科技有限责任公司 | A kind of full regeneration lightweight aggregate concrete self-insulating light wallboard and preparation method |
| CN107009484A (en) * | 2017-04-25 | 2017-08-04 | 天津和兴源建筑工程有限公司 | A kind of preparation method of high performance concrete Self-heat-insulation composite building block |
| CN107759244A (en) * | 2017-11-20 | 2018-03-06 | 武汉科技大学 | A kind of mine tailing light-weight insulating brick and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112661530A (en) * | 2021-01-20 | 2021-04-16 | 东北大学 | Aerated concrete block prepared by blending iron tailings and preparation method thereof |
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