CN102432241A - Method for producing walling material by using papermaking white mud - Google Patents
Method for producing walling material by using papermaking white mud Download PDFInfo
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- CN102432241A CN102432241A CN2011102924585A CN201110292458A CN102432241A CN 102432241 A CN102432241 A CN 102432241A CN 2011102924585 A CN2011102924585 A CN 2011102924585A CN 201110292458 A CN201110292458 A CN 201110292458A CN 102432241 A CN102432241 A CN 102432241A
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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 a method for producing a walling material by using papermaking white mud. The method is characterized by comprising steps of: taking 40-60 percentage (by weight) of papermaking white mud, 20-45 percentage (by weight) of lithium slag, 10-20 percentage (by weight) of cement and 1-6 percentage (by weight) of active excitant, and adding into a mixer for mixing, wherein the active excitant is made of a mixture of polyacrylic acid, polycarboxylic acid water-reducing agent and aluminum potassium sulfate; dispensing the mixture into a group of molds, and placing on a vibrating table of a block molding machine for molding by vibration; placing the molds filled with the mixed materials into a curing case with temperature of 15-25 DEG C and humidity more than 90% to cure for 20-30 hours and then demolding; and further putting into a curing case with temperature of 60-80 DEG C to cure for 20-30 hours by steaming, thereby obtaining the walling material. The method for producing the walling material by using the papermaking white mud has the advantages of good product performance, reducing pollution to environment caused by industrial refuse, reducing manufacturing cost of the walling material, saving a large number of building materials, reducing energy consumption, and being both economical and environmental-friendly.
Description
Technical field
The invention belongs to the preparation method of the building slab of block or other shape in the building element, relate to and mainly utilize waste to prepare building construction material---the method for building block, particularly a kind of method of utilizing paper white sludge to produce materials for wall.Be applicable to and mainly utilize waste paper white sludge, lithium slag etc. to produce building wall material---building block.
Background technology
Paper white sludge (following can abbreviate white clay as) derives from the paper technology white clay recovery stage between the alkali recovery vehicle; In the paper process, black liquor of pulp making obtains melts through extraction, evaporation concentration in the alkali recovery furnace roasting, and the water-soluble green liquor that is adds lime then and carries out causticizing reaction in the green liquor, obtains white depositions, is white clay,
In the paper white sludge, water ratio is at 40～55% (mass percent example content, down together), and staple is CaCO
3And SiO
2,, also containing magnesium salts partly and molysite etc., the weight percent chemical constitution of removing the oven dry white clay after anhydrating can be listed for following table:
Paper white sludge has strong basicity (PH is generally about 10), and residual alkali is about 1%-2%.In paper technology, 1 ton of thick slurry of every production will produce nearly 0.5 ton of white clay, and the annual white clay that produces in China paper mill is above 5,000,000 tons.
In the prior art; The existing research that white clay is applied to the aspects such as filler, material of construction and white clay desulfurization of plant husbandry, papermaking filler and plastics; But in practical application; But because the application of white clay exists cost height, income is few, the white clay consumption is very little situation, its use is restricted.At present, with regard to building materials, the add-on of white clay can not be greater than 15%, such as there being report to produce non-burning brick adding paper white sludge 5%～10% between 5%～15% (mass percent, back are together); In manufacture of cement, adding can not surpass 10%, and a lot of factories tested in the Jiajiang ceramic tile production of Leshan, can not surpass 15% at most.(the residual alkali of white clay <under 1.5% the standard) has limited its industrial applications.Therefore, the processing major part of white clay all is outdoor stacking at present, not only takies a large amount of soils, contaminate environment, and consumption great amount of manpower and material resources, financial resources are managed, but also have been wasted the ample resources in the white clay.
White clay in material of construction, can not add into reason mainly contain following three reasons:
(1) because the residual alkali in the white clay can produce the accumulation of salt in the surface soil when product (no matter being building block or cement) runs into humidity, strength at break also influences surface of wall, products such as the building block of production are difficult to reach the requirement of national product quality standard;
(2) white clay adds the intensity that too much can influence building materials, because its former activity is less, to the intensity index of product, i.e. resistance to compression, anti-folding have a significant effect; And when high temperature, distil corrosion and occluding device of often residual aborning alkali in the adding manufacture of cement produces situation such as harm production safety;
(3) the white clay water ratio is 40%～55%, and use the needs oven dry back that has, and the cost increase is lower, during perhaps various aborning raw materials mix, reach all even consistence of blended and can bring more high energy consumption, and production cost is high, at the bottom of the practical value.
In China's building construction material; The 70%th, materials for wall, the kind of brick commonly used has sintered common clay brick (solid brick), sintering dinas brick, Dinas brickes etc., wherein clay brick dominate; Produce the annual clay resource that consumes of clay brick and reach 14 billion cubic meters; Be equivalent to ruin 1,200,000 mu in field approximately, simultaneously, the annual clay brick of producing of China consumes about more than 4,000 ten thousand tons of standard coal equivalents.The production of traditional construction material clay brick has not only caused great destruction to land resources, and serious threat grain-production and consumed energy huge and cause serious environmental to pollute.For this reason, country advocates notions such as green, energy-saving and environmental protection, Sustainable development to materials for wall.So, adopt a kind of energy consumption low, the non-clay materials for wall that intensity is high is a kind of inevitable.If can reasonably utilize paper white sludge, use it for the preparation of materials for wall, not only can alleviate the pollution of white clay to environment, can also reduce the production cost of materials for wall, will have obvious social.
Summary of the invention
The object of the invention is intended to overcome above-mentioned deficiency of the prior art, and a kind of method of utilizing paper white sludge to produce materials for wall is provided.
Content of the present invention is: a kind of method of utilizing paper white sludge to produce materials for wall is characterized in that comprising the following steps:
A, get material and mixing moulding: get the mass percent example and be 40～60% paper white sludge, 20～45% lithium slag, 10～20% cement and 1～6% activity excitant, added stirrer for mixing 3～10 minutes, mixture; Then the mixture branch is packed in one group of mould, the mould that mixture will be housed again places on the plain bumper of block machine and vibrates 60～120 moulding;
Said activity excitant is a ROHM by part by weight: the ROHM of polycarboxylate water-reducer: potassium aluminium sulfate=100:25～50:3～11, polycarboxylate water-reducer mix with potassium aluminium sulfate and form;
B, maintenance: it is 15～25 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 20～30 hours of 90%; Put into temperature again and be 60～80 ℃ maintaining box steam-cured (that is: steam curing) 20～30 hours, promptly make materials for wall---the building block product.
In the content of the present invention: said paper white sludge water ratio 40～55%.
In the content of the present invention: said cement can be ordinary Portland cement, silicate cement, complex cement or aluminate cement.
In the content of the present invention: said step b can replace with preferably: it is 20 ± 1 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 23～27 hours of 90%; Put into temperature again and be 65 ℃ steam-cured 23～27 hours of maintaining box, promptly make materials for wall---the building block product.
In the content of the present invention: the preparation method of said activity excitant is: by ROHM: the part by weight of polycarboxylate water-reducer: potassium aluminium sulfate=100:25～50:3～11 is got ROHM, polycarboxylate water-reducer and potassium aluminium sulfate; ROHM is heated to 40～60 ℃, behind adding polycarboxylate water-reducer, the stirring 15～25min, adds potassium aluminium sulfate again and stir 5～10min, promptly make activity excitant.
In the content of the present invention: said lithium slag can be an industrial residue of producing lithium or lithium salts.
The weight percent chemical constitution of said lithium slag can comprise SiO
243.2～59.1%, CaO 6.4～11.4%, Al
2O
312.8 Fe～18.6%,
2O
31.1～3.4% and water 10.4～17.1%.The weight percent chemical constitution of lithium slag also can be the production lithium of existing other chemical constitution or the industrial residue of lithium salts.
In the content of the present invention: said cement is preferably strength grade and reaches 42.5 or 52.5 cement (seeing the standard of the relevant cement of China).
In the content of the present invention: said paper white sludge (being that aqueous weight percent is 40～55% paper white sludge) is behind heating, drying, and the weight percent chemical constitution of oven dry white clay can comprise: CaO 44.35～50.85%, SiO
24.26～12.34%, loss on ignition 38.12～42.17%, also comprise a spot of K
2O, Na
2O, C1
-, P
2O
5, and MgO etc.The chemical constitution of said paper white sludge also can be the paper white sludge of existing other chemical constitution.
In the content of the present invention: said step b better can replace with: it is 20 ± 1 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 24 hours of 95%; Put into temperature again and be 65 ℃ steam-cured 24 hours of maintaining box, promptly make materials for wall---the building block product.
In the content of the present invention: said ROHM is preferably the ROHM that molecular weight is 3000-4000, and this ROHM is existing commercially available prod.
Compared with prior art, the present invention has following characteristics and beneficial effect:
(1) adopt the present invention, originally paper white sludge, lithium slag, cement mix with activity excitant, have generated flocculence solid gel and a large amount of fibrous hydrated product; The white clay particle has been brought into play microcrystals and micro aggregate effect in this system, be filled in fiber and gel and overlap mutually in the spatial network of formation; Make solid gel become crystalline nucleation with fiber and grow up; Played the densification of matrix, and solidified the solubility alkali salt in the white clay, part has formed new stable mineral body; Thereby make white clay production materials for wall can reach ideal intensity, and solve accumulation of salt in the surface soil problem at all;
(2) adopt the present invention, will have ordinary sinter clay brick plant now and transform a little and can produce, need not to add new installation, front-end investment is little, and income is fast, and industriallization running cost is low; Sharpest edges of the present invention are that used brick-making raw material about 80% is industrial refuse (paper white sludge and a lithium slag), and need not to carry out any pre-treatment, and raw material is through stirring, moulding, and maintenance gets final product, and has reduced production energy consumption and cost; Advantage of the present invention also is; The extensive application of industrial refuse white clay and lithium slag not only reduces carrying capacity of environment, the manufacturing cost of materials for wall; A large amount of construction timbers have been saved; Protect farmland, and reached the double effects of curbing environmental pollution, promoted the Sustainable development of paper industry and materials for wall industry with the utilization of refuse comprehensive high-efficiency;
(3) adopt the raw material of the inventive method to form and process step; Can effectively solve the accumulation of salt in the surface soil appears in residual alkali in the paper white sludge in finished product problem, strength problem and water ratio problem; Thereby paper white sludge can use in a large number, and the weight percent during raw material is formed reaches 40～60%; Effective utilization of a large amount of wastes makes the materials for wall cost of the inventive method preparation compare with common similar materials for wall priming cost, has reduced by 30%～40%, and economic benefit is obvious;
(4) materials for wall---the wall body brick that adopts the inventive method to prepare, mechanical property is excellent, through detection, the wall body brick that adopts the steam-cured method of the present invention (GB11945-1999) to make, its mechanical property such as following table:
(5) the inventive method technology is simple, and is easy to operate, and equipment is simple, easy to implement, running cost is low; Rationally utilize industrial refuse paper white sludge and lithium slag, reduced the industrial refuse environmental pollution, obviously reduced the manufacturing cost of materials for wall; Saved a large amount of construction timbers, reduced energy consumption, not only economy but also be beneficial to environmental protection; Economic benefit and obvious social benefit, practical.
Embodiment
Embodiment given below intends so that the present invention is described further; But can not be interpreted as it is restriction to protection domain of the present invention; The technician in this field to some nonessential improvement and adjustment that the present invention makes, still belongs to protection scope of the present invention according to the content of the invention described above.
Embodiment 1:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
1) percentage composition meter is by weight got white clay 43.5%, lithium slag 45%, PO42.5 cement 10%, activity excitant (RDDM) 1.5%.Added stirrer for mixing 3 minutes, and poured into then in the mould, 120 moulding of vibration on plain bumper;
2) mould being put into temperature, to be 20 ± 1 ℃ be maintaining box maintenance demoulding after 20 hours of 91% with humidity, puts into temperature again and be 65 ℃ steam-cured 20 hours of maintaining box, promptly gets materials for wall.
Embodiment 2:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
1) percentage composition meter is by weight got white clay 48.9%, lithium slag 30%, PO42.5 cement 20%, and activity excitant (RDDM) 1.1% added stirrer for mixing 5 minutes, pours in the mould 80 moulding of vibration on plain bumper then into;
2) mould being put into temperature, to be 20 ± 1 ℃ be maintaining box maintenance demoulding after 24 hours of 92% with humidity, puts into temperature again and be 65 ℃ steam-cured 30 hours of maintaining box, promptly gets materials for wall.
Embodiment 3:
A kind of method of utilizing white clay to produce materials for wall, it is characterized in that: it comprises:
1) percentage composition meter is by weight got white clay 58.2%, lithium slag 20%, PO42.5 cement 20%, and activity excitant (RDDM) 1.8% added stirrer for mixing 10 minutes, pours in the mould 60 moulding of vibration on plain bumper then into;
2) mould being put into temperature, to be 20 ± 1 ℃ be maintaining box maintenance demoulding after 30 hours of 95% with humidity, puts into temperature again and be 65 ℃ steam-cured 24 hours of maintaining box, promptly gets materials for wall.
The wall body brick that the materials for wall that this example is made makes through autoclave method, through measuring, the premium grads mechanical property is following:
Embodiment 4:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
1) percentage composition meter is by weight got white clay 53.2%, lithium slag 30%, PO42.5 cement 15%, and activity excitant (RDDM) 1.8% added stirrer for mixing 8 minutes, pours in the mould 100 moulding of vibration on plain bumper then into;
2) mould being put into temperature, to be 20 ± 1 ℃ be maintaining box maintenance demoulding after 24 hours of 97% with humidity, puts into temperature again and be 65 ℃ steam-cured 24 hours of maintaining box, promptly gets materials for wall.
The wall body brick that the materials for wall that this example is made makes through autoclave method, measure premium grads mechanical property such as following table through GB11945-1999:
Embodiment 5:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
A, get material and mixing moulding: get weight percent and be 40% paper white sludge, 39% lithium slag, 20% cement and 1% activity excitant, added stirrer for mixing 3 minutes, mixture; Then the mixture branch is packed in one group of mould, the mould that mixture will be housed again places 60 moulding of vibration on the plain bumper of block machine;
Said activity excitant is a ROHM by part by weight: the ROHM of polycarboxylate water-reducer: potassium aluminium sulfate=100:25:3, polycarboxylate water-reducer mix with potassium aluminium sulfate and form;
B, maintenance: it is 15～25 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 20 hours of 90%; Put into temperature again and be 60～80 ℃ steam-cured (that is: the water steam curing of maintaining box; 20 hours afterwards together), promptly make materials for wall---the building block product.
Embodiment 6:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
A, get material and mixing moulding: get weight percent and be 60% paper white sludge, 20% lithium slag, 14% cement and 6% activity excitant, added stirrer for mixing 10 minutes, mixture; Then the mixture branch is packed in one group of mould, the mould that mixture will be housed again places 120 moulding of vibration on the plain bumper of block machine;
Said activity excitant is a ROHM by part by weight: the ROHM of polycarboxylate water-reducer: potassium aluminium sulfate=100:50:11, polycarboxylate water-reducer mix with potassium aluminium sulfate and form;
B, maintenance: it is 15～25 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 30 hours of 90%, put into temperature again and be 60～80 ℃ steam-cured 30 hours of maintaining box, promptly make materials for wall---the building block product.
Embodiment 7:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
A, get material and mixing moulding: get weight percent and be 50% paper white sludge, 37% lithium slag, 10% cement and 3% activity excitant, added stirrer for mixing 6 minutes, mixture; Then the mixture branch is packed in one group of mould, the mould that mixture will be housed again places 80 moulding of vibration on the plain bumper of block machine;
Said activity excitant is a ROHM by part by weight: the ROHM of polycarboxylate water-reducer: potassium aluminium sulfate=100:38:7, polycarboxylate water-reducer mix with potassium aluminium sulfate and form;
B, maintenance: it is 15～25 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 25 hours of 90%, put into temperature again and be 60～80 ℃ steam-cured 25 hours of maintaining box, promptly make materials for wall---the building block product.
Embodiment 8:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
A, get material and mixing moulding: get weight percent and be 40～60% paper white sludge, 20～45% lithium slag, 10～20% cement and 1～6% activity excitant, added stirrer for mixing 3～10 minutes, mixture; Then the mixture branch is packed in one group of mould, the mould that mixture will be housed again places on the plain bumper of block machine and vibrates 60～120 moulding;
Said activity excitant is a ROHM by part by weight: the ROHM of polycarboxylate water-reducer: potassium aluminium sulfate=100:25～50:3～11, polycarboxylate water-reducer mix with potassium aluminium sulfate and form;
B, maintenance: it is 15～25 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 20～30 hours of 90%; Put into temperature again and be 60～80 ℃ steam-cured 20～30 hours of maintaining box, promptly make materials for wall---the building block product.
Embodiment 9-15:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
A, get material and mixing moulding: get weight percent and be 40～60% paper white sludge, 20～45% lithium slag, 10～20% cement and 1～6% activity excitant, added stirrer for mixing 3～10 minutes, mixture; Then the mixture branch is packed in one group of mould, the mould that mixture will be housed again places on the plain bumper of block machine and vibrates 60～120 moulding; The concrete consumption of each component sees the following form 1 among each embodiment;
Said activity excitant is a ROHM by part by weight: the ROHM of polycarboxylate water-reducer: potassium aluminium sulfate=100:25～50:3～11, polycarboxylate water-reducer mix with potassium aluminium sulfate and form; The concrete consumption of each component sees the following form 2 among each embodiment;
Table 1: the consumption of each component among the embodiment 9-15 (weight percent)
Table 2: the consumption of each component of activity excitant (part by weight) among the embodiment 9-15
B, maintenance: it is 15～25 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 20～30 hours of 90%; Put into temperature again and be 60～80 ℃ steam-cured 20～30 hours of maintaining box, promptly make materials for wall---the building block product.
Embodiment 16-22:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
A, get material and mixing moulding: get paper white sludge, lithium slag, 1 cement and activity excitant, added stirrer for mixing 3～10 minutes, mixture; Then the mixture branch is packed in one group of mould, the mould that mixture will be housed again places on the plain bumper of block machine and vibrates 60～120 moulding; The concrete consumption of each component can be with arbitrary in 1-15, slightly among each embodiment;
Said activity excitant is a ROHM by part by weight: the ROHM of polycarboxylate water-reducer: potassium aluminium sulfate=100:25～50:3～11, polycarboxylate water-reducer mix with potassium aluminium sulfate and form; The concrete consumption of each component sees the following form 3 among each embodiment;
Table 3: the consumption of each component of activity excitant (part by weight) among the embodiment 16-22
B, maintenance: it is 15～25 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 20～30 hours of 90%; Put into temperature again and be 60～80 ℃ steam-cured 20～30 hours of maintaining box, promptly make materials for wall---the building block product.
Embodiment 23:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
A, get material and mixing moulding: with arbitrary in 1-22, slightly;
B, maintenance: it is 20 ± 1 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 23～27 hours of 90%, put into temperature again and be 65 ℃ steam-cured 23～27 hours of maintaining box, promptly make materials for wall---the building block product.
Embodiment 24:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
A, get material and mixing moulding: with arbitrary in 1-22, slightly;
B, maintenance: it is 20 ± 1 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 24 hours of 95%, put into temperature again and be 65 ℃ steam-cured 24 hours of maintaining box, promptly make materials for wall---the building block product.
Embodiment 25:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
A, get material and mixing moulding: with arbitrary in 1-22, slightly;
B, maintenance: it is 20 ± 1 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 26 hours of 92%, put into temperature again and be 65 ℃ steam-cured 26 hours of maintaining box, promptly make materials for wall---the building block product.
Embodiment 26:
A kind of method of utilizing paper white sludge to produce materials for wall comprises the following steps:
A, get material and mixing moulding: with arbitrary in 1-22, slightly;
B, maintenance: it is 20 ± 1 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 23 hours of 92%, put into temperature again and be 65 ℃ steam-cured 23 hours of maintaining box, promptly make materials for wall---the building block product.
In the foregoing description: the paper white sludge of said paper white sludge water ratio 40%～55%.
In the foregoing description: said cement can be ordinary Portland cement, silicate cement, complex cement or aluminate cement; Said cement is preferably strength grade and reaches 42.5 or 52.5 cement.
In the foregoing description: the preparation method of said activity excitant is: by ROHM: the part by weight of polycarboxylate water-reducer: potassium aluminium sulfate=100:25～50:3～11 is got ROHM, polycarboxylate water-reducer and potassium aluminium sulfate; ROHM is heated to 40～60 ℃, behind adding polycarboxylate water-reducer, the stirring 15～25min, adds potassium aluminium sulfate again and stir 5～10min, promptly make activity excitant.
In the foregoing description: said lithium slag can be an industrial residue of producing lithium or lithium salts.
In the foregoing description: the weight percent chemical constitution of said lithium slag can comprise SiO
243.2～59.1%, CaO 6.4～11.4%, Al
2O
312.8 Fe～18.6%,
2O
31.1～3.4% and water 10.4～17.1%.The weight percent chemical constitution of lithium slag also can be the production lithium of existing other chemical constitution or the industrial residue of lithium salts.
In the foregoing description: said paper white sludge (being that aqueous weight percent is 40～55% paper white sludge) is behind heating, drying, and the weight percent chemical constitution of oven dry white clay can comprise: CaO 44.35～50.85%, SiO
24.26～12.34%, loss on ignition 38.12～42.17%, also comprise a spot of K
2O (for example: 0.55%), Na
2O (for example: 1.2%), C1
-(for example: 0.063%), P
2O
5(for example: 0.129%) and MgO (for example: 0.24%) etc.The chemical constitution of said paper white sludge also can be the paper white sludge of existing other chemical constitution.
In the foregoing description: said polyacrylic molecular weight is 3000-4000 preferably, is existing commercially available prod.
In content of the present invention and the foregoing description: adopt block machine when producing materials for wall, the jolt ramming equipment mechanism is installed in the shaper, required vibratory compaction processing requirement when being used for block forming; Guarantee all even consistence of goods; Also can select independent jolt ramming device---plain bumper in addition for use, the form of plain bumper has two kinds, platform formula and the mould formula of shaking of shaking; To the present invention, these two kinds of forms can; Adopt the plain bumper device frequency at 40～50H
Z
In the foregoing description: in the percentage that is adopted, do not indicate especially, be quality (weight) percentage; In the ratio that is adopted, do not indicate especially, be quality (weight) ratio.
In the foregoing description: the processing parameter in each step (temperature, time, concentration etc.) and each amounts of components numerical value etc. are scope, and any point is all applicable.
The not concrete same prior art of narrating of technology contents in content of the present invention and the foregoing description, said starting material are the commercially available prod.
The invention is not restricted to the foregoing description, content of the present invention is said all can implement and have said good result.
Claims (10)
1. a method of utilizing paper white sludge to produce materials for wall is characterized in that comprising the following steps:
A, get material and mixing moulding: get weight percent and be 40～60% paper white sludge, 20～45% lithium slag, 10～20% cement and 1～6% activity excitant, added stirrer for mixing 3～10 minutes, mixture; Then the mixture branch is packed in one group of mould, the mould that mixture will be housed again places on the plain bumper of block machine and vibrates 60～120 moulding;
Said activity excitant is a ROHM by part by weight: the ROHM of polycarboxylate water-reducer: potassium aluminium sulfate=100:25～50:3～11, polycarboxylate water-reducer mix with potassium aluminium sulfate and form;
B, maintenance: it is 15～25 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 20～30 hours of 90%; Put into temperature again and be 60～80 ℃ steam-cured 20～30 hours of maintaining box, promptly make materials for wall---the building block product.
2. by the described a kind of method of utilizing paper white sludge to produce materials for wall of claim 1, it is characterized in that: said paper white sludge is that aqueous weight percent is 40～55% paper white sludge.
3. by the described a kind of method of utilizing paper white sludge to produce materials for wall of claim 1, it is characterized in that: said cement is ordinary Portland cement, silicate cement, complex cement or sulfate cement.
4. by claim 1,2 or 3 described a kind of methods of utilizing paper white sludge to produce materials for wall; It is characterized in that: said step b replaces with: it is 20 ± 1 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 23～27 hours of 90%; Put into temperature again and be 65 ℃ steam-cured 23～27 hours of maintaining box, promptly make materials for wall---the building block product.
5. by claim 1,2 or 3 described a kind of methods of utilizing paper white sludge to produce materials for wall, it is characterized in that: the preparation method of said activity excitant is: by ROHM: the part by weight of polycarboxylate water-reducer: potassium aluminium sulfate=100:25～50:3～11 is got ROHM, polycarboxylate water-reducer and potassium aluminium sulfate; Stir down, ROHM is heated to 40～60 ℃, behind adding polycarboxylate water-reducer, the stirring 15～25min, add potassium aluminium sulfate again and stir 5～10min, promptly make activity excitant.
6. by claim 1,2 or 3 described a kind of methods of utilizing paper white sludge to produce materials for wall, it is characterized in that: said lithium slag is an industrial residue of producing lithium or lithium salts.
7. by the described a kind of method of utilizing paper white sludge to produce materials for wall of claim 6, it is characterized in that: the weight percent chemical constitution of said lithium slag comprises SiO
243.2～59.1%, CaO 6.4～11.4%, Al
2O
312.8 Fe～18.6%,
2O
31.1～3.4% and water 10.4～17.1%.
8. by the described a kind of method of utilizing paper white sludge to produce materials for wall of claim 3, it is characterized in that: said cement is that strength grade reaches 42.5 or 52.5 cement.
9. by the described a kind of method of utilizing paper white sludge to produce materials for wall of claim 2, it is characterized in that: said paper white sludge is behind heating, drying, and the weight percent chemical constitution of oven dry white clay comprises: CaO 44.35～50.85%, SiO
24.26～12.34%, loss on ignition 38.12～42.17%.
10. by the described a kind of method of utilizing paper white sludge to produce materials for wall of claim 4; It is characterized in that: said step b replaces with: it is 20 ± 1 ℃ and humidity that the mould that mixture will be housed places temperature>maintaining box maintenance demoulding after 24 hours of 95%; Put into temperature again and be 65 ℃ steam-cured 24 hours of maintaining box, promptly make materials for wall---the building block product.
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