CN107555901A - A kind of method that building board is made using solid waste - Google Patents
A kind of method that building board is made using solid waste Download PDFInfo
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- CN107555901A CN107555901A CN201710805594.7A CN201710805594A CN107555901A CN 107555901 A CN107555901 A CN 107555901A CN 201710805594 A CN201710805594 A CN 201710805594A CN 107555901 A CN107555901 A CN 107555901A
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- red mud
- building board
- solid waste
- powder
- sheet material
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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
Abstract
The present invention provides a kind of method that building board is made using solid waste, is related to building material field, this method includes：The modification of red mud, plant cellulose, the making of sheet material idiosome, shaping, dehydration, drying and maintenance are extracted from agricultural crop straw; resulting building board heat endurance, corrosion resistance, rupture strength and static bending intensity is high; density is relatively low; heat insulation and preservation effect is high; it is a kind of building board of excellent performance; and this method does raw material using ardealite and red mud; add the consumption ability to both solid wastes; protect environment; the use of traditional resource such as timber, sandstone, cement is decreased, saves resource.
Description
Technical field
The present invention relates to building material field, and in particular to a kind of method that building board is made using solid waste.
Background technology
Red mud is the solid slag discharged in aluminum oxide production process, often produces 1 ton of aluminum oxide and will be about discharging 1.0-2.0
Ton red mud.At present, China's red mud comprehensive utilization ratio only 4%, accumulation volume of cargo in storage reach several hundred million tons.China's alumina producer mostly uses
The outdoor mode built a dam stores up red mud, and this disposal options do not only take up large area soil, and the alkali in red mud can also be to ground
Lower infiltration, causes body of groundwater and soil pollution.Meanwhile the fine dusts that exposed red mud is formed are flown away with the wind, can also pollute big
Gas, deteriorates ecological environment, and the existence to the mankind and animals and plants causes to have a strong impact on.Therefore, how aluminum oxide production process is handled
A large amount of red muds of middle discharge, reduce environmental pollution, and are alumina industry problems urgently to be resolved hurrily.
Ardealite refers to use solid slag caused by sulfuric acid treating phosphorite in phosphoric acid production, and its main component is sulfuric acid
Calcium.Ardealite Main Ingredients and Appearance is：CaSO4·2H2O, additionally containing various other impurity.
About 20,000,000 tons of ardealite is discharged in China every year at present, adds up nearly hundred million tons of discharge capacity, is that discharge capacity is maximum in gypsum offscum
One kind, the phosphogypsum slag of discharge takes a large amount of soils, forms slag mountain, seriously pollute environment.
It is most possibly to improve both solid waste utilization rates to make construction material currently with red mud and ardealite
Mode, but current techniques be mostly by both solid wastes using only, consumption ability to both solid wastes and
Secondary use amount all wretched insufficiencies.
The content of the invention
(1) technical problem solved
In view of the shortcomings of the prior art, the invention provides a kind of method that building board is made using solid waste, make
Red mud and ardealite both solid wastes are integrated into using, on the one hand add the consumption energy of both solid wastes
Power, reduce environmental pollution；Another aspect this method proposes the use that can greatly reduce the traditional building materials such as cement, timber,
Save resource.
(2) technical scheme
To realize object above, the present invention is achieved by the following technical programs：
A kind of method that building board is made using solid waste, this method are comprised the following steps：
(1) modification of red mud：By red mud and ardealite by certain weight ratio mixing and water adding stirring 1h, filtering water removal, obtain
Mixture natural air drying after, at 750-900 DEG C high temperature bakee 2h, after cooling i.e. can obtain changed red mud, the modification is red
Mud obtains changed red mud powder after high speed crushing, grinding, screening；
(2) agricultural crop straw, ammonium persulfate, calcium hydroxide are added in boiling water and boil 5-10h, pull rear draining out, it is natural
Dry to moisture content≤15%, then after refiner refines, that is, obtain plant fiber powder end；
(3) changed red mud powder is sequentially added into reactor, string powder, portland cement, flyash, illiteracy are de-
Soil, Firebrake ZB, water reducer, it is 70 DEG C to control whipping temp, after stirring 1h, is naturally cooling to 30 DEG C, adds water stirring 20-
30min, after standing 3 days, sheet material idiosome is made；
(4) sheet material idiosome is mated formation into plate embryo model, by dewatering by dead weight, vacuum dehydration, roller press dewatering and shape
Into wet mat；
(5) the wet plate embryo made by is dried under 180-250 DEG C, 4-7MP, is cut after compressing, is sent into maintenance workshop
After maintenance, that is, obtain described sheet material.
Wherein, changed red mud powder mesh number is 150-200 mesh in the step (1).
Wherein, red mud and ardealite by weight 2 in the step (1):1 mixes.
Wherein, agricultural crop straw includes in the step (2)：Maize straw, cotton stalk and rice straw.
Wherein, water reducer can be calcium lignosulfonate, sodium lignin sulfonate and magnesium lignosulfonate in the step (3)
In any one.
Wherein, maintenance is the naturally dry in workshop is conserved in the step (6).
(3) beneficial effect
The invention provides a kind of method that building board is made using solid waste, this method has the beneficial effect that：
(1) red mud is modified using ardealite, both solid wastes is comprehensively utilized, added and both solids are given up
The consumption ability of material, reduces the expense of both wastes of business processes, protects environment.
(2) this method is from the red mud for doing raw material, without being handled through extra drying, dealkalize, naturally dry in Red Mud Dam
Red mud just can be utilized directly, reduce production cost.
(3) building board is made using the string of agricultural crop straw extraction, cost of material is low, wide material sources, resource
It is abundant, and manufactured building board has good heat insulation and preservation effect, and persulfuric acid is added in the extraction process of string
Ammonium, calcium hydroxide, manufactured sheet material have lower expansion rate and Geng Gao tensile strength compared with general cellulose sheet material.
(4) with ardealite, red mud, agricultural crop straw these raw materials making building board, traditional building material is reduced such as
The use of timber, sandstone, cement, saves resource.
(5) simple production process, it is by carrying out simple transformation to original fly ash baking-free kiln and sheet machining apparatus
It can put into production.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention,
Technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is the present invention one
Divide embodiment, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained under the premise of creative work, belongs to the scope of protection of the invention.
Embodiment 1：
A kind of method that building board is made using solid waste, this method are comprised the following steps：
(1) modification of red mud：By red mud and ardealite by weight 2:1 mixing and water adding stirs 1h, filtering water removal, obtains
After mixture natural air drying, high temperature bakees 2h at 800 DEG C, can obtain changed red mud after cooling, changed red mud is through high speed powder
After broken, grinding, screening, that is, obtain the changed red mud powder that mesh number is 150-200 mesh；
(2) agricultural crop straw, ammonium persulfate, calcium hydroxide are added in boiling water and boil 8h, pull rear draining out, spontaneously dried
To moisture content≤15%, then after refiner refines, that is, obtain plant fiber powder end；
(3) changed red mud powder is sequentially added into reactor, string powder, portland cement, flyash, illiteracy are de-
Soil, Firebrake ZB, calcium lignosulfonate, it is 70 DEG C to control whipping temp, after stirring 1h, is naturally cooling to 30 DEG C, adds water stirring
20-30min, after standing 3 days, sheet material idiosome is made.
(4) sheet material idiosome is mated formation into plate embryo model, by dewatering by dead weight, vacuum dehydration, roller press dewatering and shape
Into wet mat.
(5) the wet plate embryo made by is dried at 200 DEG C under 5MP, is cut after compressing, after being sent into the maintenance of maintenance workshop,
Obtain described sheet material.
Embodiment 2：
A kind of method that building board is made using solid waste, this method are comprised the following steps：
(1) modification of red mud：By red mud and ardealite by weight 2:1 mixing and water adding stirs 1h, filtering water removal, obtains
After mixture natural air drying, high temperature bakees 2h at 850 DEG C, can obtain changed red mud after cooling, changed red mud is through high speed powder
After broken, grinding, screening, that is, obtain the changed red mud powder that mesh number is 150-200 mesh；
(2) agricultural crop straw, ammonium persulfate, calcium hydroxide are added in boiling water and boil 10h, pull rear draining out, it is naturally dry
It is dry to moisture content≤15%, then after refiner refines, that is, obtain plant fiber powder end；
(3) changed red mud powder is sequentially added into reactor, string powder, portland cement, flyash, illiteracy are de-
Soil, Firebrake ZB, sodium lignin sulfonate, it is 70 DEG C to control whipping temp, after stirring 1h, is naturally cooling to 30 DEG C, adds water stirring
20-30min, after standing 3 days, sheet material idiosome is made.
(4) sheet material idiosome is mated formation into plate embryo model, by dewatering by dead weight, vacuum dehydration, roller press dewatering and shape
Into wet mat.
(5) the wet plate embryo made by is dried at 250 DEG C under 7MP, is cut after compressing, after being sent into the maintenance of maintenance workshop,
Obtain described sheet material.
Embodiment 3：
A kind of method that building board is made using solid waste, this method are comprised the following steps：
(1) modification of red mud：By red mud and ardealite by weight 2:1 mixing and water adding stirs 1h, filtering water removal, obtains
After mixture natural air drying, high temperature bakees 2h at 750 DEG C, can obtain changed red mud after cooling, changed red mud is through high speed powder
After broken, grinding, screening, that is, obtain the changed red mud powder that mesh number is 150-200 mesh；
(2) agricultural crop straw, ammonium persulfate, calcium hydroxide are added in boiling water and boil 5h, pull rear draining out, spontaneously dried
To moisture content≤15%, then after refiner refines, that is, obtain plant fiber powder end；
(3) changed red mud powder is sequentially added into reactor, string powder, portland cement, flyash, illiteracy are de-
Soil, Firebrake ZB, magnesium lignosulfonate, it is 70 DEG C to control whipping temp, after stirring 1h, is naturally cooling to 30 DEG C, adds water stirring
20-30min, after standing 3 days, sheet material idiosome is made.
(4) sheet material idiosome is mated formation into plate embryo model, by dewatering by dead weight, vacuum dehydration, roller press dewatering and shape
Into wet mat.
(5) the wet plate embryo made by is dried at 250 DEG C under 4MP, is cut after compressing, after being sent into the maintenance of maintenance workshop,
Obtain described sheet material.
Embodiment 4：
Substantially the same manner as Example 1, its difference is, the temperature control that step (1) high temperature bakees is at 900 DEG C, step
(2) time boiled in boiling water is 9h, and the water reducer in step (3) is sodium lignin sulfonate, and wet plate embryo is 220 in step (5)
DEG C, dried under 6MP.
Embodiment 5：
Substantially the same manner as Example 1, its difference is, the temperature control that step (1) high temperature bakees is at 850 DEG C, step
(2) time boiled in boiling water is 7h, and the water reducer in step (3) is magnesium lignosulfonate, and wet plate embryo is 240 in step (5)
DEG C, dried under 7MP.
Performance test：
Building board made of embodiment 1-5 detects comparing result, as shown in table 1：
The performance detection of table 1
To sum up, the embodiment of the present invention has the advantages that：Heat endurance, corrosion resistance, rupture strength and static bending
Intensity is high, and density is relatively low, is a kind of building board of excellent performance.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations；Although with reference to the foregoing embodiments
The present invention is described in detail, it will be understood by those within the art that：It still can be to foregoing each implementation
Technical scheme described in example is modified, or carries out equivalent substitution to which part technical characteristic；And these modification or
Replace, the essence of appropriate technical solution is departed from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (6)
- A kind of 1. method that building board is made using solid waste, it is characterised in that comprise the following steps：(1) by red mud and ardealite by certain weight ratio mixing and water adding stirring 1h, filtering water removal, obtained mixture natural air drying Afterwards, high temperature bakees 2h at 750-900 DEG C, can obtain changed red mud after cooling, the changed red mud is through crushing at a high speed, grinding After mill, screening, that is, obtain changed red mud powder；(2) agricultural crop straw, ammonium persulfate, calcium hydroxide are added in boiling water and boil 5-10h, pull rear draining out, spontaneously dried To moisture content≤15%, then after refiner refines, that is, obtain plant fiber powder end；(3) sequentially add changed red mud powder into reactor, string powder, portland cement, flyash, montmorillonite, Firebrake ZB, water reducer, it is 70 DEG C to control whipping temp, after stirring 1h, is naturally cooling to 30 DEG C, adds water stirring 20-30min, After standing 3 days, sheet material idiosome is made；(4) sheet material idiosome is mated formation into plate embryo model, by dewatering by dead weight, vacuum dehydration, roller press dewatering and formed wet Slab；(5) the wet plate embryo made by is dried under 180-250 DEG C, 4-7MP, is cut after compressing, is sent into the maintenance of maintenance workshop Afterwards, that is, the sheet material is obtained.
- 2. the method for building board is made using solid waste as claimed in claim 1, it is characterised in that in the step (1) Changed red mud powder mesh number is 150-200 mesh.
- 3. the method for building board is made using solid waste as claimed in claim 1, it is characterised in that in the step (1) Red mud is with ardealite by weight 2:1 mixes.
- 4. the method for building board is made using solid waste as claimed in claim 1, it is characterised in that in the step (2) Agricultural crop straw includes：Maize straw, cotton stalk and rice straw.
- 5. the method for building board is made using solid waste as claimed in claim 1, it is characterised in that in the step (3) Water reducer can be any one in calcium lignosulfonate, sodium lignin sulfonate and magnesium lignosulfonate.
- 6. the method for building board is made using solid waste as claimed in claim 1, it is characterised in that in the step (6) Maintenance be the naturally dry in workshop is conserved.
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| CN201710805594.7A CN107555901A (en) | 2017-09-08 | 2017-09-08 | A kind of method that building board is made using solid waste |
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| CN201710805594.7A CN107555901A (en) | 2017-09-08 | 2017-09-08 | A kind of method that building board is made using solid waste |
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Cited By (4)
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| CN108382037A (en) * | 2018-03-14 | 2018-08-10 | 贵州中建科技建材有限公司 | A kind of compound waste residue plastic formwork and preparation method thereof |
| CN109336474A (en) * | 2018-09-30 | 2019-02-15 | 颍上县永军建材有限责任公司 | A kind of cement additive |
| CN113929418A (en) * | 2021-10-25 | 2022-01-14 | 杭州瑞鼎建材有限公司 | Aerated concrete and preparation method thereof |
| CN116715504A (en) * | 2023-08-09 | 2023-09-08 | 天津杰臻环保技术有限公司 | Method for producing building material by utilizing land natural gas exploitation water treatment sludge |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108382037A (en) * | 2018-03-14 | 2018-08-10 | 贵州中建科技建材有限公司 | A kind of compound waste residue plastic formwork and preparation method thereof |
| CN109336474A (en) * | 2018-09-30 | 2019-02-15 | 颍上县永军建材有限责任公司 | A kind of cement additive |
| CN113929418A (en) * | 2021-10-25 | 2022-01-14 | 杭州瑞鼎建材有限公司 | Aerated concrete and preparation method thereof |
| CN113929418B (en) * | 2021-10-25 | 2022-06-17 | 杭州瑞鼎建材有限公司 | Aerated concrete and preparation method thereof |
| CN116715504A (en) * | 2023-08-09 | 2023-09-08 | 天津杰臻环保技术有限公司 | Method for producing building material by utilizing land natural gas exploitation water treatment sludge |
| CN116715504B (en) * | 2023-08-09 | 2023-09-29 | 天津杰臻环保技术有限公司 | Method for producing building material by utilizing land natural gas exploitation water treatment sludge |
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Application publication date: 20180109 |