CN102424547A - Building template made from fly ash and preparation technology thereof - Google Patents
Building template made from fly ash and preparation technology thereof Download PDFInfo
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- CN102424547A CN102424547A CN2011102699229A CN201110269922A CN102424547A CN 102424547 A CN102424547 A CN 102424547A CN 2011102699229 A CN2011102699229 A CN 2011102699229A CN 201110269922 A CN201110269922 A CN 201110269922A CN 102424547 A CN102424547 A CN 102424547A
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Abstract
The invention discloses a building template made from fly ash, comprising by weight 35-60% of fly ash, 35-60% of bamboo shred and 5-20% of adhesive, wherein the fly ash is treated with decarburization and contains charcoal no higher than 5%. Compared with a prior art, the fly ash treated with decarburization of the invention has low charcoal content, so that the prepared building template has low charcoal content, small water absorption, high strength and unsusceptibility to weathering; bamboo fiber in the bamboo shred forms skeletons in the template and has advantages of weak water absorption, unsusceptibility to water expansion and decay, easiness for combination with adhesive, so as to render the building template good mechanical properties.
Description
Technical field
The present invention relates to the recycle of flyash, more particularly, the present invention relates to a kind of building template and preparation technology thereof who utilizes fly-ash Preparation.
Background technology
Furniture manufacturing industry and building decoration already need a large amount of timber, have caused rapid minimizing and the desertification of land of world forest, and various policies are put into effect in countries in the world, and the felling of restriction forest makes the building materials raw material nervous.On the other hand, flyash and bamboo bits are two big wastes during current industry is produced with bamboo processing.Flyash is one of bigger industrial residue of the current discharge capacity of China, present stage China's year bed drain purge reached 3,000 ten thousand tons.Along with development of electric power industry, the flyash quantity discharged of coal-burning power plant increases year by year.The weight utilization ratio of bamboo wood is lower than 40% in the production of bamboo daily necessities, has the bamboo wood more than 60% in the course of processing, to become industrial wood waste.
Chinese patent 200610113578.3 discloses the compound water-proof sheet material and the preparation method of a kind of bamboo bits and flyash, and this compound water-proof sheet material is processed through blend mold pressing polymerization by the bamboo bits of 20～70 weight parts, the flyash of 10～60 weight parts, the tackiness agent and the initiator of 5～40 weight parts.The bamboo bits and the component of the compound water-proof sheet material of flyash that this invention provides also can comprise new, the old plastics of 1～12 weight part.Disclosed scheme has apparent in view shortcoming in this patent: at first; Its employed flyash did not carry out carbonization treatment, and carbon content is high, and too high carbon content makes its prepared timber intensity low; Actual use is seriously limited, and big, the easy corruption of water-absorbent; Secondly, adhesive composition is complicated in the prescription of this patent, and the too high levels of tackiness agent, causes cost high, and has run counter to inner feelings at the beginning of the environment-friendly and green.
Chinese patent 200710068971.X discloses a kind of light-weight foam plate; Being used for the non-load bearing wall body construction uses; It adopts short cut bamboo fibers, flyash, aluminium powder, cement, dehydrated gypsum, lime powder, pearlstone; Add moisture and stir vibration again, place in the template and carry out foaming treatment, carried out weathering then dry 72 hours.After lime powder is heated, can promote the reaction of aluminium powder and cement, produce hydrogen and foam, dehydrated gypsum initial set rapidly after absorbing moisture simultaneously, lime, cement, flyash can form three and close the knot layer, under the aggregate of bamboo fibers, are solidified into plate.Though do not use tackiness agent in the technical scheme of this patent, to utilize dehydrated gypsum to absorb and coagulate behind the moisture and change, its intensity is low excessively, is inappropriate for the making building template, only can be used as membrane.
One Chinese patent application 200810024733.3 discloses a kind of building and ornament materials, and it is made up of waste or used plastics, flyash, stone powder, PVC RESINS, bamboo fibers, fire retardant.By weight, each percentages of ingredients is: waste or used plastics 25-40%, flyash 30-45%, stone powder 15-25%, PVC RESINS 5-15%, bamboo fibers 2-8%, fire retardant 0.4-0.8%.This patented claim also discloses a kind of working method of building and ornament materials simultaneously: waste or used plastics is processed little plastic grain through plastic regenerator; Stone powder is broken into the 250-300 order; Bamboo fibers processed be not higher than 1 millimeter staple fibre.Waste or used plastics, flyash, stone powder, PVC RESINS, bamboo fibers, fire retardant are stirred by above-mentioned weight percent; Compound is heated to the 260-300 centigradetemperature, places extrusion molding in 4-6 the atmospheric extrusion machine again.Timeliness 4-6 days at normal temperatures.The technical scheme of this patented claim is not used tackiness agent, and plastics is at high temperature melted each component is carried out bonding, thereby the timber intensity that makes is low; Simultaneously, its flyash does not carry out carbonization treatment yet, influences its intensity equally.
One Chinese patent application 201010580140.2 discloses and a kind ofly utilized renewable resource, realize with mould Dai Mu, to mould the complex architectural template of Dai Gang; It adopts extexine and sandwich layer composite structure; Wherein extexine is a high density polyethylene(HDPE); Sandwich layer is the synthetic materials that thermosetting resin and sizing agent, filler are formed, and wherein filler is the mixing of one or more materials in flyash, Paris white, wood powder, talcum powder, mineral substance or the spun glass, and sizing agent is epoxy resin or resol.Extexine and sandwich layer are prone to peeling off phenomenon in this patented claim.
One Chinese patent application 200810051279.0 also discloses a kind of building template and preparation method; It utilizes multiple solid waste: wooden and stalk fibre and plastic waste, flyash, abandoned mine slag; 170-185 ℃ of following blend plasticizing granulation, under temperature 185-200 ℃ through mold pressing or roll into New Type Architecture Mode.Make template tensile strength 18.0MPA; Flexural strength 22.0MPA; Shock strength 7.0KJ/M2, use temperature-15-55 ℃, this template can be used 8-12 time repeatedly; And can 100% recovery use as feedstock recycle, can be used in the building of facilities such as building construction, power station, railway culvert, underground storehouse, bridge.Preparing method's relative complex of this patented claim, and it utilizes plastics at high temperature to melt each component is carried out bonding, and thereby the timber intensity that makes is low.
Therefore, be necessary to provide a kind of high-intensity building template and preparation technology thereof.
Summary of the invention
To the shortcoming of prior art, the purpose of this invention is to provide a kind of utilize fly-ash Preparation, high-intensity building template and preparation technology thereof.
To achieve these goals, the invention provides a kind of building template by flyash and the preparation of bamboo bits, (dried weight under the normal temperature and pressure) by weight, it comprises the flyash of 35%-60%, the bamboo bits of 35%-60% and the tackiness agent of 5%-20%; Wherein, employed flyash is the flyash through carbonization treatment, and the carbon content of this flyash is not higher than 5%.With the building template that makes at normal temperatures and pressures after the drying, its water cut generally between 4%-10%, with the area with season and variation to some extent.
In technical scheme of the present invention,, make that the carbon content in the flyash is not higher than 5% because the flyash from power plant has been carried out carbonization treatment; Like this, the intensity of prepared building template is greatly improved, and also is provided its work-ing life; This is because the carbon granule in the flyash is less relatively; It does not possess the fibrous texture as the bamboo bits, when its content acquires a certain degree, and the physical strength of meeting remarkably influenced the finished product building template.Contriver's test is found, compares with the former ash of flyash that adopts power plant, adopts the flyash of carbonization treatment and the building template of bamboo bits preparation, no matter is MOR, or Young's modulus, all significantly improves, and can reach more than one times generally speaking.The carbon content of the former ash of flyash of decarburization is not higher, and usually more than 10%, if utilize the flyash of not decarburization to make building template, its carbon content is high, intensity is low, be prone to suction, easy-weathering.
Certainly, flyash is carried out carbonization treatment, increased process complexity to a certain extent, improved cost, but the powdered carbon that from flyash, obtains can be used to prepare purposes such as gac, so instead overall economic efficiency rises.Preferably, in the technical scheme of the invention described above, the carbon content of employed flyash is between 1%-5%; More preferably between 2%-5%,, can improve the decarburization cost significantly because the carbon content of flyash is controlled at below 1%; And it is instead unfavorable to intensity of prepared building template etc.; Because the existence of certain carbon granule helps adhesive penetration, thereby better the inorganic components in the flyash is bonded together in the flyash.
Preferably, in the prepared building template of the present invention, the content of flyash is 35%-55%, and the content of bamboo bits is 40%-55%, and the content of tackiness agent is 7%-17%; More preferably, in the prepared building template of the present invention, the content of flyash is 36%-50%, and the content of bamboo bits is 42%-55%, and the content of tackiness agent is 8%-15%; Perhaps in the prepared building template of the present invention, the content of flyash is 36%-46%, and the content of bamboo bits is 45%-55%, and the content of tackiness agent is 8%-12%.
Building template prepared in accordance with the present invention, because flyash has passed through carbonization treatment, its carbon content is low, thereby prepared building template water-absorbent is little, intensity is high, not perishable and weathering.The flyash carbon content of decarburization is not higher, and usually more than 10%, if utilize the flyash of not decarburization to make building template, its carbon content is high, intensity is low, be prone to suction, easy-weathering.
Building template prepared in accordance with the present invention, because the bamboo fibers in the employing bamboo bits forms the skeleton in the building template, its water-absorbent is poor, meets water and is not easy to expand, and is not perishable, and easy and adhesive bond, makes the building template that makes have mechanical property preferably.
According to an embodiment of the present invention, flyash can be the flyash of coal-powder boiler or the flyash of circular fluid bed.Wherein, the flyash of coal-powder boiler is that glass is spherical; The flyash of circular fluid bed is that sponge is cotton-shaped; And be vesicular structure, porosity is generally at 60%-78%, and specific surface area is bigger; Has stronger adsorptive power; It has stronger adsorption to tackiness agent, can combine better thereby make between each feed particles, makes the building template that makes have higher intensity.Thereby the flyash of circular fluid bed is more suitable for as the raw material of making building template, and the present invention is preferably the flyash of circular fluid bed.
In addition, the ratio of bamboo bits and tackiness agent is moderate.Binder content is too high, can increase cost, and is unfavorable for environmental protection, should reduce its usage quantity as far as possible; Certainly, binder content is crossed to hang down and can be made the building template insufficient strength that makes.Bamboo fibers in the bamboo bits forms the skeleton in the plate, and its content is crossed the low building template that makes that can make and lacked support, falls apart easily; Its too high levels, the corresponding reduction of flyash content can influence the degree of compactness of plate.In general, the content of bamboo bits is low, then should improve the content of tackiness agent; The content of bamboo bits is high, then can reduce the content of tackiness agent.
According to another embodiment of the present invention; By weight; Except that contained carbon, also comprise as the flyash of raw material: the aluminium sesquioxide of the silicon-dioxide of 48%-52%, the quicklime of 6%-7%, 20%-28%, the red oxide of iron of 5%-7.2%, the Natural manganese dioxide of 1.8%-2.1%, the sulphur trioxide of 1%-1.25%.
According to another embodiment of the present invention, the density of this building template is 0.60g/cm
3-0.90g/cm
3, it is preferably 0.70g/cm
3-0.86g/cm
3If the density of building template is lower than 0.60g/cm
3, then the degree of its compacting is not enough, and intensity is also big inadequately, and use occasion and life-span are all limited; And if the density of building template is higher than in 0.90g/cm
3Though intensity is improved, undue fine and close structure is unfavorable for the assembling in the use, for example is difficult to connect through nail etc., and building template is also bad by nail easily, and in addition, overweight building template also is unfavorable for carrying.
According to another embodiment of the present invention, tackiness agent is preferably resol or trimeric cyanamide.
On the other hand, the invention provides a kind of method of making above-mentioned building template, it comprises the steps:
1. by weight, the flyash of 35%-60%, the bamboo bits of 35%-60%, the tackiness agent of 5%-20% are mixed;
2. whipping step 1. in the mixture of gained;
3. precompressed after the 2. middle mixture after being mixed of step being mated formation;
4. the mixture after the 3. middle precompressed of step is hot pressed into building template.
The flyash of step in 1. is through carbonization treatment, and its carbon content is not higher than 5%, and its granularity is 260 orders-360 orders; The granularity of bamboo bits is 20 orders-100 orders.
In aforesaid method, step 3. in, the pressure-controlling of precompressed is preferably 0.4MPa-1.8MPa between 0.2MPa-2.0MPa.
In aforesaid method, step 4. in, hot pressed temperature is 195 ℃-220 ℃, hot pressed pressure is 1.2MPa-1.4MPa.
In addition,, can before precompressed, carry out drying treatment, carry out transversal processing after the precompressed, and after hot-forming, carry out processing such as mitre saw limit and sanding according to the needs of the finished product specification and the particular case of production.
Through aforesaid method, not only can utilize flyash to make building template, replace wooden template, thereby save the use of timber; And (for example the template of 2.4m * 1.2m) effectively remedies the conventional little defective of wooden template size can to make big specification.
In aforesaid method, flyash is the flyash through carbonization treatment, and this carbonization treatment comprises the steps:
A, in powdered coal ash, add flotation agent and/or collecting agent, form mixture;
B, the mixture that in floatation equipment, makes gained in the steps A fall from the top of floatation equipment;
C, the gas that formation upwards blows in floatation equipment, the mixture that falls among this gas and the step B forms counter current contact, and this gas is turbulent state in the process that moves upward;
Pass through the PM for particulate matter of the flotation plate of floatation equipment among D, the collection step C, promptly obtain flyash through carbonization treatment.
Carbonization treatment is to floatingly select the carbon granule in the powdered coal ash and the fly ash grain collected through flotation is not used to make building template.Can the carbon content in the flyash be reduced in this way and not be higher than 5%.
In aforesaid method, employed flotation agent can be the flotation agent of pine camphor oil or C8 aronmatic or other any kind in the steps A, and employed collecting agent can be LIGHT DIESEL OIL or diesel oil etc.In fact, the interpolation of flotation agent and/or collecting agent is not necessary; According to the particular case of powdered coal ash, also can not add any flotation agent or collecting agent sometimes; But, in order to improve decarburization efficient, preferably adding a spot of flotation agent and/or collecting agent, the flotation agent that is for example added and the total amount of collecting agent can be the 0.1-10% of powdered coal ash gross weight.
In aforesaid method, the gas that upwards blows among the step C is that pressure is higher than atmospheric gas, is preferably a gauge pressure 1-6 normal atmosphere, more preferably 1-2 atmospheric gas.
In aforesaid method; Because the staple of flyash is carbon granule and ash content, behind adding flotation agent and/or collecting agent and/or other auxiliary agent, the particle in the flyash contacts, collides with bubble; The carbon granule that flotability is good optionally adheres to bubble; And carried rising, and realize flotation, the ash content of flotability difference is then to sinking.
Especially, because the gas that upwards blows is turbulent state, the duration of contact of carbon granule and bubble is long, contacts more fully, and the probability that fly ash grain is broken for carbon granule and ash particles increases greatly, thereby makes the decarburization better effects if, and decarburization efficient is higher.
In aforesaid method, the flotation plate of floatation equipment can be single or multiple lift, for example, and the 2-5 layer; Wherein, the flyash of the process carbonization treatment that step D is collected is for exporting the PM for particulate matter of discharge not through the flotation plate of floatation equipment, from the tail ash of floatation equipment.
In aforesaid method, through the flyash of carbonization treatment, its carbon content is not higher than 5%.
In aforesaid method, the density of the template that obtains after the 4. middle hot pressing of step is 0.60g/cm
3-0.90g/cm
3, be preferably 0.70g/cm
3-0.86g/cm
3
Compared with prior art, the present invention has following beneficial effect:
Flyash is through carbonization treatment, and its carbon content is low, makes the building template carbon content that makes low, and water-absorbent is little, and intensity is high, not easy-weathering; Bamboo fibers in the bamboo bits forms the skeleton in the plate, and its water-absorbent is poor, meets water and is not easy to expand, and is not perishable, and easy and adhesive bond, makes the building template that makes have mechanical property preferably.In addition,, not only can utilize flyash to make building template, replace wooden template, thereby save the use of timber through method provided by the invention; And can make the template of big specification, effectively remedy the conventional little defective of wooden template size.
Below in conjunction with accompanying drawing the present invention is done further detailed description.
Description of drawings
Fig. 1 is the present invention carries out carbonization treatment to flyash a schema;
Fig. 2 is the structural representation that the present invention carries out the floatation equipment that carbonization treatment adopted;
Fig. 3 is the schema that the embodiment of the invention 1 is utilized the fly-ash Preparation building template.
Embodiment
The building template that utilizes flyash to make of present embodiment by weight, comprises the 38% cotton-shaped circular fluid bed flyash through carbonization treatment, 55% bamboo bits, 7% trimeric cyanamide tackiness agent; Its density is 0.86g/cm
3
The used flyash of building template of making present embodiment is the flyash of circular fluid bed, and it is that sponge is cotton-shaped.This flyash comprises: the aluminium sesquioxide of the silicon-dioxide of 48%-52%, the quicklime of 6%-7%, 20%-28%, the red oxide of iron of 5%-7.2%, the Natural manganese dioxide of 1.8%-2.1%, the sulphur trioxide of 1%-1.25%; Its loss on ignition is 6%-8%, and carbon content is 10%-12%.Before making building template, earlier flyash is carried out carbonization treatment, make its carbon content not be higher than 5%.As shown in Figure 1, this carbonization treatment comprises the steps:
A, in powdered coal ash, add flotation agent and/or collecting agent, form mixture;
B, the mixture that in floatation equipment, makes gained in the steps A fall from the top of floatation equipment;
C, the gas that formation upwards blows in floatation equipment, the mixture that falls among this gas and the step B forms counter current contact, and this gas is turbulent state in the process that moves upward;
D, collect among the step C not PM for particulate matter, promptly pass through the flyash of carbonization treatment through the flotation plate of said floatation equipment.
As shown in Figure 2; Through the carbon flotation flyash is carried out the specific embodiment of the flyash flotation separation equipment of carbonization treatment, comprising: the bucket-shaped diffusing device of air of storage device 1, distribution device 2, the cylindrical shell 3 that vertically is provided with, awl 4, multilayer flotation plate 5, air feeder 6, physical separation means such as ultrasonic separation means 8, tail ash bin 7, screen plate 9, overflow collection section 301, tail ash collection section 305.
The cylindrical shell 3 that vertically is provided with can be divided into three parts, is followed successively by from top to bottom: the first flotation section 302, divergent cone section 303, the second flotation section 304.Wherein, the first flotation section 302 is thinner, is provided with one deck flotation plate 5 in it.The second flotation section 304 is thicker, is provided with the bucket-shaped diffusing device of air 4 of awl and one deck flotation plate 5 in it.Divergent cone section 303 is the bucket-shaped transitional region of the awl of point upward between the first flotation section 302 and the second flotation section 304.
Tail ash collection section 305 be that the awl of pointed end is bucket-shaped, and its bottom tip place is provided with tail ash outlet 306, and the tail ash exports 306 and is connected with tail ash tube road 307.Between the second flotation section 304 and tail ash collection section 305, be provided with screen plate 9.
The device of air 4 that looses is that the awl of point upward is bucket-shaped, and its awl bucket angle is 120 °, and its conical surface is provided with a plurality of pores 401; It is positioned at the second flotation section 304, and is positioned at 305 tops, awl bucket-shaped tail ash collection section.The device of air 4 that looses is provided with a plurality of ultrasonic separation means 8.
Multilayer (for example two-layer) the flotation plate 5 that is provided with at interval lays respectively in the first flotation section 302 and the second flotation section 304, and wherein bottom flotation plate 5 is positioned at the top of the bucket-shaped diffusing device of air 4 of awl.
Be provided with whipping appts 101 in the storage device 1, be used for powdered coal ash slurry and flotation agent are fully stirred.Tail ash tube road 307 is connected to tail ash bin 7 from tail ash outlet 306, and tail ash bin 7 is connected to storage device 1 through circulating line 310; The bottom of storage device 1 is provided with charging line 102, and charging line 102 is provided with slag stock pump 103, and this charging line 102 leads to distribution device 2.
In addition, also be provided with bypass line on the circulating line 310, be equipped with valve on circulating line 310 and the removing ash pipeline 311 as removing ash pipeline 311.According to fine coal ash composition and processing requirement, the tail ash can get into again through circulating line 310 and 102 and carry out flotation in the flotation separation equipment, to reclaim carbon granule wherein; When the carbon content in the tail ash reaches when necessarily requiring, then to discharge through removing ash pipeline 311, this tail ash is the flyash after the carbonization treatment, and the carbon granule of recovery can be used to prepare the products such as gac of high added value.
In addition, above-mentioned floatation process is the one-level flotation, according to circumstances also can carry out the secondary flotation sometimes, and at this moment, tail in the tail ash tube road 307 ash gets into the secondary floatation equipment, obtains flyash and carbon granule after the carbonization treatment.
As shown in Figure 3, utilize the step of the fly-ash Preparation present embodiment after the carbonization treatment following:
1. by weight, the flyash after 38% decarburization, 55% bamboo bits, 7% trimeric cyanamide are mixed;
2. whipping step 1. in the mixture of gained;
3. after mixture after being mixed mats formation in 2. with step, carry out precompressed with the pressure of 0.8MPa;
4. with step 3. in mixture after the precompressed under 200 ℃, to be hot pressed into density with the pressure of 1.4MPa be 0.86g/cm
3Template.
Wherein, the granularity of the flyash of step in 1. is 280 orders, and the bamboo bits are 60 orders.The building template physical and mechanical property such as the following table that make:
| Density g/cm 3 | Water ratio % | MOR MPa | Young's modulus MPa |
| 0.83 | 5.9 | 8.7 | 1060 |
The building template that utilizes flyash to make of present embodiment by weight, comprises the 45% cotton-shaped circular fluid bed flyash through carbonization treatment, 45% bamboo bits, 10% aerodux; Its density is 0.90g/cm
3
Present embodiment is the flyash manufacturing that utilizes the circular fluid bed after the carbonization treatment, and the process of carbonization treatment is identical with embodiment 1.
Utilize the step of the fly-ash Preparation present embodiment after the carbonization treatment following:
1. by weight, the flyash after 45% decarburization, 45% bamboo bits, 10% resol are mixed;
2. whipping step 1. in the mixture of gained;
3. after mixture after being mixed mats formation in 2. with step, carry out precompressed with the pressure of 1.6MPa;
4. with step 3. in mixture after the precompressed under 210 ℃, to be hot pressed into density with the pressure of 1.3MPa be 0.90g/cm
3Template.
Wherein, the granularity of the flyash of step in 1. is 340 orders, and the bamboo bits are 80 orders.The building template physical and mechanical property such as the following table that make:
| Density g/cm 2 | Water ratio % | MOR MPa | Young's modulus MPa |
| 0.90 | 5.2 | 9.6 | 1010 |
Embodiment 3
The building template that utilizes flyash to make of present embodiment by weight, comprises the 58% cotton-shaped circular fluid bed flyash through carbonization treatment, 30% bamboo bits, 12% aerodux.
Present embodiment is the flyash manufacturing that utilizes the circular fluid bed after the carbonization treatment, and the process of carbonization treatment is identical with embodiment 1.
Utilize the step of the fly-ash Preparation present embodiment after the carbonization treatment following:
1. by weight, the flyash after 58% decarburization, 30% bamboo bits, 12% resol are mixed;
2. whipping step 1. in the mixture of gained;
3. after mixture after being mixed mats formation in 2. with step, carry out precompressed with the pressure of 2.0MPa;
4. the mixture pressure with 1.25MPa under 195 ℃ after the 3. middle precompressed of step is hot pressed into template.
The building template that utilizes flyash to make of present embodiment by weight, comprises the 50% cotton-shaped circular fluid bed flyash through carbonization treatment, 33% bamboo bits, 17% aerodux.
Present embodiment is the flyash manufacturing that utilizes the circular fluid bed after the carbonization treatment, and the process of carbonization treatment is identical with embodiment 1.
Utilize the step of the fly-ash Preparation present embodiment after the carbonization treatment following:
1. by weight, the flyash after 50% decarburization, 33% bamboo bits, 17% resol are mixed;
2. whipping step 1. in the mixture of gained;
3. after mixture after being mixed mats formation in 2. with step, carry out precompressed with the pressure of 0.2MPa;
4. the mixture pressure with 1.2MPa under 220 ℃ after the 3. middle precompressed of step is hot pressed into template.
Wherein, the granularity of the flyash of step in 1. is 260 orders, and the bamboo bits are 100 orders.
Though the present invention discloses as above with preferred embodiment, be not in order to limit the scope that the present invention implements.Any those of ordinary skill in the art, promptly every when doing a little improvement in not breaking away from invention scope of the present invention according to the equal improvement that the present invention did, should be invention scope of the present invention and contain.
Claims (10)
1. building template by fly-ash Preparation, by weight, it comprises the flyash of 35%-60%, the bamboo bits of 35%-60%, the tackiness agent of 5%-20%; Wherein, described flyash is the flyash through carbonization treatment, and the carbon content in this flyash is not higher than 5%.
2. building template as claimed in claim 1, wherein, the carbon content in the described flyash is between 1%-5%.
3. building template as claimed in claim 1, wherein, described flyash is cotton-shaped circular fluid bed flyash.
4. building template as claimed in claim 1, wherein, by weight, the content of flyash is 36%-50%, and the content of bamboo bits is 42%-55%, and the content of tackiness agent is 8%-15%.
5. building template as claimed in claim 1, wherein, by weight, the content of flyash is 36%-46%, and the content of bamboo bits is 45%-55%, and the content of tackiness agent is 8%-12%.
6. building template as claimed in claim 1; Wherein, Except that contained carbon, described flyash also comprises: the aluminium sesquioxide of the silicon-dioxide of 48%-52%, the quicklime of 6%-7%, 20%-28%, the red oxide of iron of 5%-7.2%, the Natural manganese dioxide of 1.8%-2.1%, the sulphur trioxide of 1%-1.25%.
7. building template as claimed in claim 1, wherein, the density of described building template is at 0.60g/cm
3-0.90g/cm
3Between.
8. building template as claimed in claim 7, wherein, the density of said building template is at 0.70g/cm
3-0.86g/cm
3Between.
9. building template as claimed in claim 1, wherein, described tackiness agent is resol or trimeric cyanamide.
10. method for preparing like one of claim 1-9 described building template, it comprises the steps:
1. by weight, flyash, bamboo bits and tackiness agent are mixed;
2. whipping step 1. in the mixture of gained;
3. precompressed after the 2. middle mixture after being mixed of step being mated formation;
4. the mixture after the 3. middle precompressed of step is hot pressed into template.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103553432A (en) * | 2013-10-15 | 2014-02-05 | 包兰珍 | Composite building board |
| CN107739167A (en) * | 2017-10-19 | 2018-02-27 | 袁玲燕 | A kind of bamboo scraps flyash composite plate |
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|---|---|---|---|---|
| CN2511388Y (en) * | 2001-09-24 | 2002-09-18 | 张全国 | Vertical ashfly decarbonizer by electric field |
| CN101153213A (en) * | 2006-09-30 | 2008-04-02 | 中国科学院过程工程研究所 | Method of producing compound water-proof sheet material of bamboo bits and coal ash |
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| CN103553432A (en) * | 2013-10-15 | 2014-02-05 | 包兰珍 | Composite building board |
| CN107739167A (en) * | 2017-10-19 | 2018-02-27 | 袁玲燕 | A kind of bamboo scraps flyash composite plate |
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