Summary of the invention
The objective of the invention is to the deficiency of prior art and a kind of composite Portland cement is provided; With trade wastes such as the discarded corner building stones of measuring the flyash that is easy to get greatly, furnace bottom slag, basalt stone field and green muds is main mixing material; Cost is low, and production technique is simple, and the composite Portland cement of gained can satisfy composite Portland cement requirement in the GB 175-2007 general purpose portland cement standard; Can handle industrial residue in a large number; Help environment protection and energy-saving and emission-reduction, can improve the composite Portland cement early strength simultaneously, improve the workability of composite Portland cement.
The technical scheme that the present invention adopted:
A kind of composite Portland cement that uses green mud and Irish touchstone to make mixing material; Be earlier green mud to be dehydrated water ratio less than 1%; The Irish touchstone mine tailing is broken into particle diameter less than 50 millimeters rubble, and send into milling equipment then to carry out grinding to specific surface area be 330m with basaltic broken stone, green mud, gypsum, acvator and after cement clinker mixes
2/ kg~350m
2/ kg; Carry out drying treatment in the grinding process and use abrasive dust material water ratio less than 0.5%; Go out mill and obtain composite Portland cement; Wherein in butt, each component percentage ratio meter by weight is respectively: basaltic broken stone 5%~35%, cement clinker 50%~75%, green mud 3%~15%, gypsum 3%~8%, acvator 0.5%~5%, various component weight percentage summations are one of percentage hundred.
Said acvator is the mixture of organic cpds and mineral compound; Wherein organic cpds comprises a kind of in trolamine, tri-isopropanolamine, sodium formiate, calcium formiate, lime acetate, sodium acetate or the potassium acetate or more than two kinds, and mineral compound comprises a kind of in water glass, potassium silicate, Calucium Silicate powder, sodium sulfate, vitriolate of tartar, ferric sulfate, ammonium sulfate, yellow soda ash, salt of wormwood, volatile salt or quicklime, the active silica or more than two kinds.
In acvator, by weight, the usage quantity of each component is in the organic cpds:
Trolamine or tri-isopropanolamine 0.02~0.1;
A kind of in sodium formiate, calcium formiate, lime acetate, sodium acetate or the potassium acetate or mix 0.2~3.0 more than two kinds;
The usage quantity of each component is in the mineral compound:
A kind of in water glass, potassium silicate, Calucium Silicate powder, sodium sulfate, vitriolate of tartar, ferric sulfate, ammonium sulfate, yellow soda ash, salt of wormwood, volatile salt or the quicklime or mix 0.2~3.0 more than two kinds;
Active silica 10.0~100.0.
Said milling equipment is one or both combinations in ball milling, vertical roller grinder, the vibration mill.
Among the present invention, can add blended material commonly used simultaneously at basaltic broken stone and green mud blended as required, by weight percentage, the add-on of blended material commonly used is below 35% of total material.Said blended material commonly used is meant a kind of or mixing in flyash or the furnace bottom slag.
Among the present invention, can in going out the abrasive dust material, add specific surface area as required is 400m
2/ kg~450m
2The GBFS of/kg, by weight percentage, the add-on of GBFS is below 20% of total material.
The Production Flow Chart of composite Portland cement provided by the present invention is: green mud is dehydrated handle water ratio less than 1% earlier; Irish touchstone corner building stones are broken into rubble below 50 millimeters; Press formula rate again and basaltic broken stone, green mud, gypsum, acvator are mixed (adding blended material [flyash and/or furnace bottom slag] commonly used as required) with cement clinker; Compound gets into grinding system and carries out grinding processing, and going out abrasive dust body fineness, to be controlled at specific surface area be 330m
2/ kg~350m
2/ kg; In grinding process; Adopt the fluidizing furnace heat air delivery to dry to advancing grind materials; For guaranteeing out that mill cement quality and storage and transportation normally need guarantee out mill cement water ratio less than 0.5% (preferably less than 0.3%), (can in going out the abrasive dust material, add specific surface area as required is 400m to go out to grind to obtain composite Portland cement
2/ kg~450m
2The GBFS of/kg).
Production technique of the present invention is simple, is mixing material with trade wastes such as the discarded corner building stones of measuring the basalt stone field that is easy to get greatly, green muds, and cost is low; The gained composite Portland cement can satisfy the requirement of composite Portland cement in the GB 175-2007 general purpose portland cement standard; Improve composite Portland cement early strength and workability effectively, economize on resources and the energy, help suitability for industrialized production; Can handle industrial residue in a large number, help environment protection and energy-saving and emission-reduction.
Embodiment
Below in conjunction with embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
Embodiment one
Produce the PC32.5R composite Portland cement
The chemical ingredients such as the table 1 of Irish touchstone, flyash, furnace bottom slag, GBFS and green mud:
The chemical ingredients of each component of table 1 (mass percent)
Produce the proportioning such as the table 2 of each component of PC32.5R composite Portland cement:
Table 2 unit: kg
Wherein acvator is formed (by weight) as follows:
Trolamine 0.05kg, water glass 1kg, salt of wormwood 0.5kg.
Production technique is following:
Press table 2 proportioning, earlier with green mud dehydrate to water ratio less than 1%, subsequent use, again Irish touchstone is broken into rubble below 50 millimeters, subsequent use.Go into milling system and carry out grinding processing basaltic broken stone (below 50 millimeters) and green mud (dry), flyash, gypsum, cement clinker, activator mix are laggard, going out the abrasive dust material, to be controlled at specific surface area be 330m
2/ kg is to 350m
2/ kg in grinding process, adopts the fluidizing furnace heat air delivery to dry advancing grind materials, simultaneously for guaranteeing out that mill cement quality and storage and transportation normally need guarantee out abrasive dust material water ratio less than 0.3%, goes out mill and obtains composite Portland cement PC 32.5R.
Embodiment two
The chemical constitution of Irish touchstone, flyash, furnace bottom slag, GBFS and green mud, acvator composition, production technique are with embodiment one.
Produce the proportioning such as the table 3 of each component of PC32.5R composite Portland cement:
Table 3 unit: kg
Embodiment three
The chemical constitution of Irish touchstone, flyash, furnace bottom slag, GBFS and green mud, production technique are with embodiment one.
Acvator is formed (by weight) as follows:
Tri-isopropanolamine 0.05kg, water glass 1kg, active silica 10kg.
Produce the proportioning such as the table 4 of each component of PC32.5R composite Portland cement:
Table 4 unit: kg
Embodiment four
The chemical constitution of Irish touchstone, flyash, furnace bottom slag, GBFS and green mud is with embodiment one.Acvator is formed with embodiment three.
Produce the proportioning such as the table 5 of each component of PC32.5R composite Portland cement:
Table 5 unit: kg
Production technique is following:
Press table 5 proportioning, earlier with green mud dehydrate to water ratio less than 1%, subsequent use, again Irish touchstone is broken into rubble below 50 millimeters, subsequent use.Go into milling system and carry out grinding processing basaltic broken stone (below 50 millimeters) and green mud (dry), gypsum, cement clinker, activator mix are laggard, going out the abrasive dust material, to be controlled at specific surface area be 330m
2/ kg is to 350m
2/ kg; In grinding process; Adopt the fluidizing furnace heat air delivery to dry advancing grind materials, simultaneously for guaranteeing out that mill cement quality and storage and transportation normally need guarantee out abrasive dust material water ratio less than 0.3%, (specific surface area is 400m after mixer adds the S95 GBFS to go out mill
2/ kg is to 450m
2/ kg), obtain composite Portland cement PC 32.5R.
Embodiment five
Produce the PC42.5R composite Portland cement
The chemical ingredients such as the table 6 of Irish touchstone, flyash, furnace bottom slag, GBFS and green mud, cement clinker:
The chemical ingredients of each component of table 6 (mass percent)
Acvator is formed (by weight) as follows:
Trolamine 0.05kg, calcium formiate 0.5kg, water glass 1kg.
Produce the proportioning such as the table 7 of each component of PC42.5R composite Portland cement:
Table 7 unit: kg
Production technique is with embodiment four.
Embodiment six
The chemical constitution of Irish touchstone, flyash, furnace bottom slag, GBFS and green mud, acvator composition, production technique are with embodiment five.
Produce the proportioning such as the table 8 of each component of PC42.5R composite Portland cement:
Table 8 unit: kg
Embodiment seven
The chemical constitution of Irish touchstone, flyash, furnace bottom slag, GBFS and green mud, acvator composition, production technique are with embodiment five.
Produce the proportioning such as the table 9 of each component of PC42.5R composite Portland cement:
Table 9 unit: kg
Embodiment eight
The chemical constitution of Irish touchstone, flyash, furnace bottom slag, GBFS and green mud, acvator composition, production technique are with embodiment five.
Produce the proportioning such as the table 10 of each component of PC42.5R composite Portland cement:
Table 10 unit: kg
Detect:
With embodiment of the invention prepared composite silicate cement, detect various performances such as table 11 according to the standard of GB/T17671-1999.
Table 11
Table 11 is the result show; Use green mud and Irish touchstone to do the composite Portland cement 3 days of mixing material and the requirement that 28 days bending and compressive strength meet composite Portland cement in the GB 175-2007 general purpose portland cement standard fully, can satisfy PC42.5R and PC32.5R index.
The above only is a preferred implementation of the present invention; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from know-why of the present invention; Can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.