CN102674768A - Panel for composite wallboard mixed with circulating fluidized bed fly ash and production method thereof - Google Patents
Panel for composite wallboard mixed with circulating fluidized bed fly ash and production method thereof Download PDFInfo
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- CN102674768A CN102674768A CN2012101187247A CN201210118724A CN102674768A CN 102674768 A CN102674768 A CN 102674768A CN 2012101187247 A CN2012101187247 A CN 2012101187247A CN 201210118724 A CN201210118724 A CN 201210118724A CN 102674768 A CN102674768 A CN 102674768A
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- panel
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- circulating fluid
- coal ash
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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 panel for a composite wallboard mixed with circulating fluidized bed fly ash and a production method thereof. The composite wallboard mixed with the circulating fluidized bed fly ash is mixed with a part of semidry process desulfurization ash, has the advantages of high strength, low cost, fire resistance, greenness and environment friendliness, good interface combination and the like, and facilities the development of wall material reform. The panel can simultaneously and reasonably utilize two solid wastes, i.e. the circulating fluidized bed fly ash and the semidry process desulfurization ash, conforms to the development direction of solid waste resource utilization of the state and conforms to the concept of greenness, economy and low-carbon economy. In the novel construction of China, the panel for the composite wallboard is large in demand quantity and has a good market prospect.
Description
Technical field
The present invention relates to building material technical field, be specifically related to a kind of combined wall board of mixing circulating fluid bed coal ash with panel and working method thereof.
Background technology
China is coal-fired big country, and along with the extensive use of circulating fluidized bed combustion coal technology, the annual number that all can produce is in ten thousand tons circulating fluid bed coal ash.Circulating fluid bed coal ash has become the first solid waste of China at present.To the recycling of flyash, a lot of researchs have been done at present.But also do not see circulating fluid bed coal ash as making the report of combined wall board with panel.
In the process of fire coal, need carry out desulfurization and handle.Along with the development of semi-dry method flue gas desulfurization technique, the output of semi-dry desulphurization ash is more and more.If semi-dry desulphurization ash is not carried out reasonable use, not only will take a large amount of soils, but also can pollution of ecological environment.
Combined wall board can rationally fully utilize the advantage of each component, improves the whole superiority of wallboard.Existing combined wall board is used panel, is mostly no fibrous magnesium silicate cement plate, calcium silicate board, wood pulp cellulose cardboard, plasterboard and plank, and raw materials cost is higher relatively, and is good inadequately with the interfacial bonding property of laminboard layer.Develop a kind of NEW TYPE OF COMPOSITE wallboard of excellent performance and use panel, have great importance for the reform of walling.
Summary of the invention
The objective of the invention is to according to the above-mentioned deficiency that exists in the prior art, provide a kind of better with interfacial bonding property sandwich, intensity is high, and cost is low, the panel that operating efficiency is high.
Another purpose of the present invention is to provide the working method of above-mentioned panel.
Above-mentioned purpose of the present invention is achieved through following technical scheme:
A kind of combined wall board of mixing circulating fluid bed coal ash is used panel, is made by following component according to the mass percent meter: cement 20 ~ 35%, cellulosic fibre 4 ~ 8%, circulating fluid bed coal ash 10 ~ 45%, semi-dry desulphurization ash 15 ~ 35% and sand 5 ~ 15%.
The combined wall board that the present invention mixes circulating fluid bed coal ash comprises the steps: with the working method of panel
(1) each raw material is mixed according to proportioning, it is even to add the water restir, obtains wet stock;
(2) with semidrying with wet stock compression moulding;
(3) the moulding briquet is carried out wet curing, curing time is 8 ~ 10h;
(4) again the briquet after the wet curing is carried out atmospheric steam curing, curing time is 15 ~ 20h.
As a kind of preferred version, in the step (4), said curing temperature is 80 ~ 95 ℃, and relative humidity is 85 ~ 95%.
Compared with prior art, the present invention has following beneficial effect:
(1) the present invention has carried out rational recycling to semi-dry desulphurization ash and circulating sulfuration bed coal ash, meets the requirement that country utilizes for solid waste resource recovery.
(2) the present invention produces that part material is arranged in the used raw material of panel is that waste utilizes again, and raw materials cost is lower.
(3) interfacial bonding property of the present invention and laminboard layer is better, and production efficiency is high, is convenient to construction.
Embodiment
Come further to explain the present invention below in conjunction with embodiment, but embodiment does not do any type of qualification to the present invention.
Embodiment 1
(1) prescription of each component is: 150 kilograms of cement (ordinary Portland cement 32.5#), 20 kilograms of cellulosic fibres (wood pulp), 180 kilograms of circulating fluid bed coal ash, 100 kilograms of semi-dry desulphurization ash, 150 kilograms of sands.
(2) with each the raw material uniform mixing in (1), adding behind the water once more by water-cement ratio 0.30, uniform mixing obtains wet stock.
(3) utilize molding device that the wet stock of gained in (2) is carried out semi-dry pressing, forming pressure is 40MPa, carries out wet curing after the demoulding, and curing time is 8h.
(4) briquet to gained in (3) carries out atmospheric steam curing, and curing time is 15h, and temperature is 95 ℃, and relative humidity is 95%.Through detecting; The mean compressive strength of finished product is 15.3MPa, and the minimum ultimate compression strength of monolithic is 14.8MPa, and average folding strength is 3.6MPa; The minimum folding strength of monolithic is 2.9MPa; Expulsion rate between sandwich and the panel is qualified, and radioassay is qualified, the A1 level among the compound GB8624-2006 of refractoriness " material of construction and the classification of product burns performance ".
Embodiment 2
(1) prescription of each component is: 125 kilograms of cement (ordinary Portland cement 32.5#), 30 kilograms of cellulosic fibres (wood pulp), 150 kilograms of circulating fluid bed coal ash, 135 kilograms of semi-dry desulphurization ash, 60 kilograms of sands.
(2) with each the raw material uniform mixing in (1), adding behind the water once more by water-cement ratio 0.30, uniform mixing obtains wet stock.
(3) utilize molding device that the wet stock of gained in (2) is carried out semi-dry pressing, forming pressure is 40MPa, carries out wet curing after the demoulding, and curing time is 10h.
(4) briquet to gained in (3) carries out atmospheric steam curing, and curing time is 18h, and temperature is 85 ℃, and relative humidity is 90%.Through detecting; The mean compressive strength of finished product is 16.6MPa, and the minimum ultimate compression strength of monolithic is 15.2MPa, and average folding strength is 4.1MPa; The minimum folding strength of monolithic is 3.4MPa; Expulsion rate between sandwich and the panel is qualified, and radioassay is qualified, the A1 level among the compound GB8624-2006 of refractoriness " material of construction and the classification of product burns performance ".
Embodiment 3
(1) prescription of each component is: 175 kilograms of cement (ordinary Portland cement 32.5#), 25 kilograms of cellulosic fibres (wood pulp), 190 kilograms of circulating fluid bed coal ash, 75 kilograms of semi-dry desulphurization ash, 35 kilograms of sands.
(2) with each the raw material uniform mixing in (1), adding behind the water once more by water-cement ratio 0.30, uniform mixing obtains wet stock.
(3) utilize molding device that the wet stock of gained in (2) is carried out semi-dry pressing, forming pressure is 40MPa, carries out wet curing after the demoulding, and curing time is 8h.
(4) briquet to gained in (3) carries out atmospheric steam curing, and curing time is 20h, and temperature is 80 ℃, and relative humidity is 95%.Through detecting; The mean compressive strength of finished product is 15.6MPa, and the minimum ultimate compression strength of monolithic is 14.6MPa, and average folding strength is 3.8MPa; The minimum folding strength of monolithic is 3.0MPa; Expulsion rate between sandwich and the panel is qualified, and radioassay is qualified, the A1 level among the compound GB8624-2006 of refractoriness " material of construction and the classification of product burns performance ".
Embodiment 4
(1) prescription of each component is: 140 kilograms of cement (ordinary Portland cement 32.5#), 40 kilograms of cellulosic fibres (wood pulp), 155 kilograms of circulating fluid bed coal ash, 90 kilograms of semi-dry desulphurization ash, 75 kilograms of sands.
(2) with each the raw material uniform mixing in (1), adding behind the water once more by water-cement ratio 0.30, uniform mixing obtains wet stock.
(3) utilize molding device that the wet stock of gained in (2) is carried out semi-dry pressing, forming pressure is 40MPa, carries out wet curing after the demoulding, and curing time is 9h.
(4) briquet to gained in (3) carries out atmospheric steam curing, and curing time is 17h, and temperature is 90 ℃, and relative humidity is 90%.Through detecting; The mean compressive strength of finished product is 15.8MPa, and the minimum ultimate compression strength of monolithic is 14.5MPa, and average folding strength is 3.8MPa; The minimum folding strength of monolithic is 3.2MPa; Expulsion rate between sandwich and the panel is qualified, and radioassay is qualified, the A1 level among the compound GB8624-2006 of refractoriness " material of construction and the classification of product burns performance ".
Claims (4)
1. a combined wall board of mixing circulating fluid bed coal ash is used panel, it is characterized in that being made by following component according to the mass percent meter: cement 20 ~ 35%, cellulosic fibre 4 ~ 8%, circulating fluid bed coal ash 10 ~ 45%, semi-dry desulphurization ash 15 ~ 35% and sand 5 ~ 15%.
2. a combined wall board is characterized in that containing the described combined wall board of mixing circulating fluid bed coal ash of claim 1 and uses panel.
3. the said working method of mixing the combined wall board of circulating fluid bed coal ash with panel of claim 1 is characterized in that comprising the steps:
(1) each raw material is mixed according to proportioning, it is even to add the water restir, obtains wet stock;
(2) with semidrying with wet stock compression moulding;
(3) the moulding briquet is carried out wet curing, curing time is 8 ~ 10h;
(4) again the briquet after the wet curing is carried out atmospheric steam curing, curing time is 15 ~ 20h.
4. according to the said working method of mixing the combined wall board of circulating fluid bed coal ash with panel of claim 1, it is characterized in that in the step (4), said curing temperature is 80 ~ 95 ℃, relative humidity is 85 ~ 95%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101187247A CN102674768A (en) | 2012-04-23 | 2012-04-23 | Panel for composite wallboard mixed with circulating fluidized bed fly ash and production method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101187247A CN102674768A (en) | 2012-04-23 | 2012-04-23 | Panel for composite wallboard mixed with circulating fluidized bed fly ash and production method thereof |
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|---|---|
| CN102674768A true CN102674768A (en) | 2012-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012101187247A Pending CN102674768A (en) | 2012-04-23 | 2012-04-23 | Panel for composite wallboard mixed with circulating fluidized bed fly ash and production method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723984A (en) * | 2013-12-13 | 2014-04-16 | 柳州佳人板业有限公司 | Chimney white mud and mixed cotton fiber reinforced calcium silicate sheet |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898882A (en) * | 2009-05-29 | 2010-12-01 | 韦尔豪泽Nr公司 | The fiber cement board that contains modified fibre |
| CN101973749A (en) * | 2010-10-18 | 2011-02-16 | 武汉凯迪电力股份有限公司 | Non-sintered brick based on flue gas desulfurization byproduct and preparation method thereof |
-
2012
- 2012-04-23 CN CN2012101187247A patent/CN102674768A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101898882A (en) * | 2009-05-29 | 2010-12-01 | 韦尔豪泽Nr公司 | The fiber cement board that contains modified fibre |
| CN101973749A (en) * | 2010-10-18 | 2011-02-16 | 武汉凯迪电力股份有限公司 | Non-sintered brick based on flue gas desulfurization byproduct and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723984A (en) * | 2013-12-13 | 2014-04-16 | 柳州佳人板业有限公司 | Chimney white mud and mixed cotton fiber reinforced calcium silicate sheet |
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Application publication date: 20120919 |