CN103992068B - A kind of cement-base wear-resistant material of high thermal conductivity coefficient - Google Patents
A kind of cement-base wear-resistant material of high thermal conductivity coefficient Download PDFInfo
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- CN103992068B CN103992068B CN201410155010.2A CN201410155010A CN103992068B CN 103992068 B CN103992068 B CN 103992068B CN 201410155010 A CN201410155010 A CN 201410155010A CN 103992068 B CN103992068 B CN 103992068B
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Abstract
The present invention has the problem of high-intensity cement-based material concurrently simultaneously in order to solve indefinite form material shortage high thermal conductivity coefficient in prior art, a kind of cement-base wear-resistant material of high thermal conductivity coefficient is provided, comprise cement, abrasive aggregates, additive, heat conducting fiber, the mass fraction of each component is as follows: cement: 100 parts, abrasive aggregates: 50-300 part, additive: 0.2-6 part, heat conducting fiber: 1-50 part. Cement-base wear-resistant material of the present invention, by adding the fiber of high thermal conductivity, form " heat bridge " of mutual overlap joint at cement-base wear-resistant material internal, thereby accelerated heat from high-abrasive material surface conductive to inner speed, improved the thermal conductivity factor of high-abrasive material.
Description
Technical field
The present invention relates to a kind of cement based indefinite form high-abrasive material, more specifically, relate to one and can be used for industryThe cement-base wear-resistant material of the structures inwall wear-resistant protective layers such as the silo in field, hopper, chute, slag runner.
Background technology
At the industrial circles such as metallurgy, electric power, petrochemical industry, coal and chemical industry, silo, hopper, chute, slag runnerBe used for storage material and process pulp water in structures, its inwall top layer is subject to impact and the mill of material for a long timeDamage, make structures surface be subject to serious destruction. Therefore must wear-resistant protective layer be set on top layer, playThe effect of protecting group layer concrete or steel plate. At present mainly comprise sizing sheet material for the material of wear-resistant protective layerWith two kinds of indefinite form materials, the sheet material of wherein shaping mainly comprise glass cermaic plate, calendering micro-crystal plate, wear-resisting steel plate,Nylon lining plates etc., indefinite form material mainly refers to iron-filing mortar, cement based high-strength wearable material etc. Wherein indefiniteIron-filing mortar in shaped material, because anti-wear performance is poor, is progressively eliminated, and cement based high-strength wearableMaterial is a kind of indefinite form high-abrasive material of mainly applying at present, and its operative norm is JG/T270-2010" industrial structure cement-base wear-resistant material ".
Summary of the invention
The cement-base wear-resistant material with high thermal conductivity coefficient (thermal conductivity factor is greater than 5.0W/mK) of the present inventionFor structures inwall including silo, hopper, chute and slag runner, by cement, abrasive aggregates, addAdd the composition such as agent, heat conducting fiber, wherein cement is by portland cement, Portland cement, aluminic acid salt solutionOne or more compound formations in mud, sulphate aluminium cement; Abrasive aggregates is by quartz sand, river sand, siliconThese hardness such as sand, pottery, glass, basalt, granite, corundum, carborundum, flint clay are higherOne or more compound formations in particulate material; Additive is water reducer, thixotropic agent, redispersible breastOne or more in rubber powder, cellulose ether, polypropylene fibre etc. compound; Heat conducting fiber is copper plated steel fibreOne or more in the fibers such as dimension, copper fiber, aluminum fiber, carbon fiber, graphene fiber compound, andThermal conductivity factor is greater than 40W/mK.
The concrete ratio (amount according to the mass fraction) of each component of the present invention is as follows:
Cement: 100 parts
Abrasive aggregates: 50-300 part
Additive: 0.2-6 part
Heat conducting fiber: 1-50 part
Beneficial effect of the present invention is as follows: cement-base wear-resistant material of the present invention, and by adding high thermal conductivityFiber, forms " heat bridge " of mutual overlap joint at cement-base wear-resistant material internal, thereby has accelerated heat from resistance toMill material surface is transmitted to inner speed, has improved the thermal conductivity factor of high-abrasive material, and by raw-materialPreferably with formula optimization, when making cement-base wear-resistant material of the present invention there is high thermal conductivity coefficient again,Other technical indicator can meet standard JG/T270-2010's " industrial structure cement-base wear-resistant material "Requirement.
Detailed description of the invention
Below in conjunction with preferred specific embodiment, the present invention is described further. Following each embodiment is only for sayingBright the present invention but not limitation of the present invention. Wherein, each component ratio is measured according to the mass fraction.
Embodiment 1:
Cement: 100 parts of Portland cements
Abrasive aggregates: 150 parts of ceramic particles (particle diameter 1-3mm)
Additive: 0.2 part of polycarboxylate water-reducer, 0.5 part of redispersable latex powder, cellulose ether (viscosity5000mPa.s) 0.05 part
Heat conducting fiber: 20 parts of copper plated steel fibers
Above-mentioned material is mixed according to given proportioning, and pack be transported to job site, when construction, addEnter the water of powder quality 10-13%, stir and be applied to substrate surface, after normal temperature maintenance 28d, can makeObtain a kind of cement-base wear-resistant material of high thermal conductivity. On the one hand, the index such as its mechanical property, anti-wear performance symbolThe WR-I type product of regulation in standardization JG/T270-2010 " industrial structure cement-base wear-resistant material "Technical requirement. On the other hand, because the thermal conductivity factor (50W/mK left and right) of copper plated steel fiber is large far awayIn common cement-base wear-resistant material (1.2W/mK left and right), therefore adding of copper plated steel fiber, canImprove the heat conductivility of cement-base wear-resistant material. The raising of thermal conductivity factor, makes the high-abrasive material can be fasterFricative material heat is transmitted to basic unit, prevents heat accumulation.
Embodiment 2:
Cement: 100 parts of Portland cements
Abrasive aggregates: 150 parts of quartz sands (particle diameter 1-5mm)
Additive: 0.2 part of polycarboxylate water-reducer, 2 parts of redispersable latex powders, cellulose ether (viscosity50000mPa.s) 0.01 part
Heat conducting fiber: 20 parts of copper fibers
Above-mentioned material is mixed according to given proportioning, and pack be transported to job site, when construction, addEnter the water of powder quality 10-13%, stir and be applied to substrate surface, after normal temperature maintenance 28d, can makeObtain a kind of cement-base wear-resistant material of high thermal conductivity.
Compared with embodiment 1, because the content of redispersable latex powder has been increased to 2 parts by 0.5 part, shouldThe toughness of the prepared cement-base wear-resistant material of embodiment and with the bonding force of basic unit can be more better; WithTime, because heat conducting fiber becomes copper fiber from copper plated steel fiber, and the thermal conductivity factor of copper fiber is 401W/mK, is far longer than the thermal conductivity factor of copper plated steel fiber, the therefore prepared cement-base wear-resistant of this embodimentThe thermal conductivity ratio embodiment's 1 of material is higher.
Embodiment 3:
Cement: 100 parts of quick hardening sulphoaluminate cements
Abrasive aggregates: 200 parts, basalt (particle diameter 0.5-3mm)
Additive: 0.3 part of polycarboxylate water-reducer, 1 part of redispersable latex powder, cellulose ether (viscosity15000mPa.s) 0.03 part
Heat conducting fiber: 30 parts of copper fibers
Above-mentioned material is mixed according to given proportioning, and pack be transported to job site, when construction, addEnter the water of powder quality 9-12%, stir and be applied to substrate surface, after normal temperature maintenance 28d, can makeObtain a kind of cement-base wear-resistant material of high thermal conductivity.
The cement adopting in this embodiment is quick hardening sulphoaluminate cement, prepared cement-base wear-resistant materialMorning epistasis can be better; Basaltic thermal conductivity factor is 1.6-1.7W/mK, and quartzitic thermal conductivity factor approximatelyFor 6.2W/mK, therefore with respect to quartz sand abrasive aggregates, adopt basalt abrasive aggregates to reduce and leadHeat in thermal fiber scatters and disappears to surrounding, and " heat bridge " effect of heat conducting fiber is more obvious.
Embodiment 4:
Cement: 100 parts of Portland cements
Abrasive aggregates: 120 parts, corundum (particle diameter 0.5-3mm)
Additive: 2 parts of naphthalene water reducers, 1 part of thixotropic agent
Heat conducting fiber: 10 parts of copper plated steel fibers, 10 parts of copper fibers
Above-mentioned material is mixed according to given proportioning, and pack be transported to job site, when construction, addEnter the water of powder quality 11-14%, stir and be applied to substrate surface, after normal temperature maintenance 28d, can makeObtain a kind of cement-base wear-resistant material of high thermal conductivity.
In this embodiment, adopt corundum that hardness is higher as abrasive aggregates, prepared high-abrasive material wear-resistingPerformance is better; Adopt copper plated steel fiber and copper fiber to mix as heat conducting fiber, both can ensure certain surveyTemperature sensitivity, also can control the cost of raw material of high-abrasive material, because the price of copper fiber will be higher than copper facingSteel fibre.
Embodiment 5:
Cement: 100 parts of Portland cements
Abrasive aggregates: 150 parts of silica sands (particle diameter 0.5-3mm)
Additive: 0.2 part of polycarboxylate water-reducer, 0.02 part of cellulose ether (viscosity 15000mPa.s),1 part of thixotropic agent
Heat conducting fiber: 2 parts of graphene fibers
Above-mentioned material is mixed according to given proportioning, and pack be transported to job site, when construction, addEnter the water of powder quality 10-13%, stir and be applied to substrate surface, after normal temperature maintenance 28d, can makeObtain a kind of cement-base wear-resistant material of high thermal conductivity.
Because the thermal conductivity factor of Graphene is up to 4000-7000W/mK, therefore graphene fiber is littleUnder consumption, can improve the thermal conductivity factor of high-abrasive material, and heat is by being formed by graphene fiberWhen " heat bridge ", speed is very fast. But because the price of graphene fiber is very high, this embodiment generally shouldFor high-abrasive material thermal conductivity factor is required to very high occasion.
Embodiment 6:
Cement: 100 parts, 50 parts of quartz sands (or other abrasive aggregateses, or its compound), copper fiber (or itsHis heat conducting fiber, or its compound) 1 part, 0.2 part of water reducer (or other additives, or its compound)Cement: 100 parts of Portland cements
Abrasive aggregates: 25 parts of quartz sands, 25 parts of silica sands
Additive: 0.2 part of naphthalene water reducer
Heat conducting fiber: 1 part of graphene fiber
Above-mentioned material is mixed according to given proportioning, and pack be transported to job site, when construction, addEnter the water of powder quality 15-20%, stir and be applied to substrate surface, after normal temperature maintenance 28d, can makeObtain a kind of cement-base wear-resistant material of high thermal conductivity.
Embodiment 7:
Cement: 100 parts, 300 parts of quartz sands (or other abrasive aggregateses, or its compound), copper fiber (or itsHis heat conducting fiber, or its compound) 50 parts, 6 parts of water reducers (or other additives, or its compound)Cement: 80 parts of portland cements, 20 parts of aluminate cements
Abrasive aggregates: 100 parts of quartz sands, 100 parts of silica sands, 100 parts of ceramic particles
Additive: 0.2 part of naphthalene water reducer, 3 parts of redispersable latex powders, 2.8 parts of thixotropic agent
Heat conducting fiber: 10 parts of copper fibers, 40 parts of copper plated steel fibers
Above-mentioned material is mixed according to given proportioning, and pack be transported to job site, when construction, addEnter the water water of powder quality 6-9%, stir and be applied to substrate surface, after normal temperature maintenance 28d, can makeObtain a kind of cement-base wear-resistant material of high thermal conductivity.
Embodiment 8:
Cement: 100 parts, 50 parts of quartz sands (or other abrasive aggregateses, or its compound), copper fiber (or itsHis heat conducting fiber, or its compound) 50 parts, water reducer (or other additives, or its compound) 0.2Part
Cement: 90 parts of Portland cements, 10 parts of quick hardening sulphoaluminate cements
Abrasive aggregates: 10 parts of silicon-carbide particles, 40 parts of basalt particles
Additive: 0.1 part of polycarboxylate water-reducer, 0.1 part of polypropylene fibre
Heat conducting fiber: 10 parts of copper fibers, 40 parts of copper plated steel fibers
Above-mentioned material is mixed according to given proportioning, and pack be transported to job site, when construction, addEnter the water of powder quality 15-20%, stir and be applied to substrate surface, after normal temperature maintenance 28d, can makeObtain a kind of cement-base wear-resistant material of high thermal conductivity.
Embodiment 9:
Cement: 100 parts, 300 parts of quartz sands (or other abrasive aggregateses, or its compound), copper fiber (or itsHis heat conducting fiber, or its compound) 1 part, 6 parts of water reducers (or other additives, or its compound)
Cement: 100 parts of Portland cements
Abrasive aggregates: 200 parts of silicon-carbide particles, 40 parts of basalt particles, 60 parts of ceramic particles
Additive: 0.1 part of polycarboxylate water-reducer, 0.2 part of polypropylene fibre, 2.2 parts of redispersable latex powders,1.5 parts of thixotropic agent, 0.1 part of cellulose ether, 0.9 part of thixotropic agent,
Heat conducting fiber: 1 part of copper fiber
Above-mentioned material is mixed according to given proportioning, and pack be transported to job site, when construction, addThe water of powder quality 8-11%, stirs and is applied to substrate surface, after normal temperature maintenance 28d, can makeA kind of cement-base wear-resistant material of high thermal conductivity.
Embodiment 10:
Cement: 100 parts, 300 parts of quartz sands (or other abrasive aggregateses, or its compound), copper fiber (or itsHis heat conducting fiber, or its compound) 1 part, 0.2 part of water reducer (or other additives, or its compound)Cement: 100 parts of sulphate aluminium cements
Abrasive aggregates: 200 parts of quartz sands, 100 parts of basalt particles
Additive: 0.1 part of polycarboxylate water-reducer, 0.1 part of cellulose ether
Heat conducting fiber: 1 part of graphene fiber
Above-mentioned material is mixed according to given proportioning, and pack be transported to job site, when construction, addEnter the water of powder quality 8-11%, stir and be applied to substrate surface, after normal temperature maintenance 28d, can makeObtain a kind of cement-base wear-resistant material of high thermal conductivity.
Embodiment 11:
Cement: 100 parts, 50 parts of quartz sands (or other abrasive aggregateses, or its compound), copper fiber (or itsHis heat conducting fiber, or its compound) 50 parts, 6 parts of water reducers (or other additives, or its compound)Cement: 100 parts of sulphate aluminium cements
Abrasive aggregates: 20 parts of glass particles, 30 parts of silicon-carbide particles
Additive: 0.2 part of polycarboxylate water-reducer, 0.3 part of cellulose ether, 5.5 parts of thixotropic agent
Heat conducting fiber: 10 parts of copper fibers, 40 parts of copper plated steel fibers
Above-mentioned material is mixed according to given proportioning, and pack be transported to job site, when construction, addEnter the water of powder quality 15-20%, stir and be applied to substrate surface, after normal temperature maintenance 28d, can makeObtain a kind of cement-base wear-resistant material of high thermal conductivity.
Having explained the structure of some detailed description of the invention of the present invention above with word, is not exhaustive or restrictionIn concrete form described above. Be noted that every by appending claims of scope of the present inventionClaim limits; For those skilled in the art, do not departing from the principle of the inventionUnder prerequisite, can also make some improvements and modifications, these improvements and modifications also should be considered as protection of the present inventionScope.
Claims (5)
1. the cement-base wear-resistant material for structures inner wall protection layer of high thermal conductivity coefficient, its feature existsIn: it carries out JG/T270-2010 standard, the thermal conductivity factor of the copper plated steel fiber of the included heat conduction of this materialBe greater than 40W/mK, and the mass fraction of the component comprising and each component is as follows:
100 parts of Portland cements;
As 150 parts of the ceramic particles of abrasive aggregates, its particle diameter is 1-3mm;
0.2 part of polycarboxylate water-reducer;
0.5 part of redispersable latex powder;
0.05 part of cellulose ether, its viscosity is 5000mPas; And
For 20 parts of the copper plated steel fibers of heat conduction.
2. the cement-base wear-resistant material for structures inner wall protection layer of high thermal conductivity coefficient, its feature existsIn: it carries out JG/T270-2010 standard, and the thermal conductivity factor of the copper fiber of the included heat conduction of this material is greater than40W/mK, and the mass fraction of the component comprising and each component is as follows:
100 parts of Portland cements;
As 150 parts of the quartz sands of abrasive aggregates, its particle diameter is 1-5mm;
0.2 part of polycarboxylate water-reducer;
2 parts of redispersable latex powders;
0.01 part of cellulose ether, its viscosity is 50000mPas; And
For 20 parts of the copper fibers of heat conduction.
3. the cement-base wear-resistant material for structures inner wall protection layer of high thermal conductivity coefficient, its feature existsIn: it carries out JG/T270-2010 standard, and the thermal conductivity factor of the copper fiber of the included heat conduction of this material is greater than40W/mK, and the mass fraction of the component comprising and each component is as follows:
100 parts of quick hardening sulphoaluminate cements;
As 200 parts, the basalt of abrasive aggregates, its particle diameter is 0.5-3mm;
0.3 part of polycarboxylate water-reducer;
1 part of redispersable latex powder;
0.03 part of cellulose ether, its viscosity is 15000mPas; And
For 30 parts of the copper fibers of heat conduction.
4. the cement-base wear-resistant material for structures inner wall protection layer of high thermal conductivity coefficient, its feature existsIn: it carries out JG/T270-2010 standard, the copper plated steel fiber of the included heat conduction of this material and the copper of heat conductionThe thermal conductivity factor of fiber is greater than 40W/mK, and the mass fraction of the component comprising and each component is as follows:
100 parts of Portland cements;
As 120 parts, the corundum of abrasive aggregates, its particle diameter is 0.5-3mm;
2 parts of naphthalene water reducers;
1 part of thixotropic agent;
For 10 parts of the copper plated steel fibers of heat conduction; And
For 10 parts of the copper fibers of heat conduction.
5. the cement-base wear-resistant material for structures inner wall protection layer of high thermal conductivity coefficient, its feature existsIn: it carries out JG/T270-2010 standard, the thermal conductivity factor of the graphene fiber of the included heat conduction of this materialBe greater than 40W/mK, and the mass fraction of the component comprising and each component is as follows:
100 parts of Portland cements;
As 150 parts of the silica sands of abrasive aggregates, its particle diameter is 0.5-3mm;
0.2 part of polycarboxylate water-reducer;
0.02 part of cellulose ether, its viscosity is 15000mPas;
1 part of thixotropic agent; And
For 2 parts of the graphene fibers of heat conduction.
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