CN104086217A - Method for producing ceramsite by utilizing biogas residue - Google Patents
Method for producing ceramsite by utilizing biogas residue Download PDFInfo
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- CN104086217A CN104086217A CN201410323745.1A CN201410323745A CN104086217A CN 104086217 A CN104086217 A CN 104086217A CN 201410323745 A CN201410323745 A CN 201410323745A CN 104086217 A CN104086217 A CN 104086217A
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- haydite
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- slag
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Abstract
The invention discloses a method for producing ceramsite by utilizing biogas residue. The method for producing the ceramsite by utilizing the biogas residue mainly sequentially comprises the following steps: preparing raw materials, homogenizing, pelletizing, calcining, cooling, screening and packaging; concretely, uniformly mixing biogas residue powder accounting for 4-10% of the weight of main ingredients with the main ingredients while the biogas residue in a biogas digester of a farm is taken as a foaming agent, doping appropriate amount of water into mixed material and uniformly stirring, standing for 5-10 hours at room temperature and homogenizing; pelletizing the mixed material, then adding the pelletized mixed material into a calcining furnace to be preheated, after preheating is finished, pushing a preheated spherical particle kiln car to a calcining furnace with furnace temperature to be 1000-1300 DEG C to be calcined for 8-10 minutes, then cooling, and screening, so that the ceramsite finished product is obtained. The method for producing the ceramsite by utilizing the biogas residue has the advantages that hole rate of the produced ceramsite can be increased by 5-10%, holes are uniformly distributed, strength of the ceramsite is high, and comprehensive utilization of dirt and methane of the farm is realized.
Description
Technical field
The invention belongs to ceramsite material production technical field, particularly a kind of method of utilizing natural pond slag to produce haydite.
Background technology
It is little that haydite has density, inner porous, form, composition are compared with homogeneous, and the features such as tool intensity height and soundness, thereby be widely used in building materials, filter material, flame-proof thermal insulation material field, the production method of haydite is more, in adopting the production method of shale or earth, general adopt vegetable fibre smash or paper pulp mud, saw foam as organic whipping agent, the shortcoming that this method exists is to need a large amount of extra powers that consume, the useless effect of profit is limited, and organic whipping agent fineness, uniformity coefficient are not high, easily affect haydite quality; In addition, in existing large-scale plant, can produce a large amount of natural pond slags, process natural pond slag and need expend a large amount of man power and materials, directly affect the economic benefit of plant.
Summary of the invention
The object of the invention is the problem existing in order to overcome prior art, a kind of method of utilizing natural pond slag to produce haydite is provided, utilize the dirt of plant and the energy to produce for haydite on the one hand, realize the comprehensive utilization of resource and energy-conservation, utilize on the other hand natural pond slag to improve ceramic product quality as whipping agent.
Technical scheme of the present invention is:
Utilize natural pond slag to produce a method for haydite, mainly comprise sequentially raw material preparation, homogeneous, granulation, calcining, cooling, screening, packaging step;
In described raw material preparation process: major ingredient is shale powder or mud powder, major ingredient granularity 30～100 orders, the natural pond slag of take in plant's methane-generating pit is whipping agent, natural pond slag obtains qualified natural pond ground-slag after dry, broken, screening after filtration, it is 200～400 orders that qualified natural pond ground-slag granularity is controlled, and qualified natural pond ground-slag mixes with major ingredient by 4～10% of major ingredient weight ratio;
In described homogenizing step: stir evenly at room temperature standing 5～10 hours homogeneous to mixing suitable quantity of water in compound;
In described calcining step: by first preheating after joining in calcining furnace after mixture granulation, preheating section Control for Kiln Temperature is at 300～600 ℃, be 3～4 hours warm up time, after preheating finishes, grain ball kiln car through preheating is pushed to furnace temperature and 1000～1300 ℃ of calcining sections, calcine, calcination time is 8～10 minutes;
In described cooling step: first adopt and force the type of cooling that haydite is cooled to rapidly to 1000 ℃～700 ℃; Secondly, adopt naturally cooling mode that haydite temperature is cooled to 400 ℃, last, then adopt the pressure type of cooling by haydite cool to room temperature.
Further, in described calcining step, adopt biogas as the calcining energy.
Further, in described calcining step, calcining furnace is tunnel furnace.
Further, the pressure type of cooling in described cooling step is air cooling way.
The natural pond slag adopting in the present invention is through animal digestion, the organic blowing agent decomposing through microorganism again, and natural pond slag is thin and even, can merge evenly with slate flour and earth powder better, and the haydite hole ratio of producing is high and even, and haydite intensity is high.And the present invention makes full use of dirt and the energy of plant, with the ight soil of plant animal, through fermentation, produce biogas as the energy of producing haydite, thereby realized effective utilization of resource and the energy.
Beneficial effect of the present invention and advantage are:
Utilize the haydite hole ratio that the present invention produces can improve 5～10%, hole distribution is even, and haydite intensity is high, and has realized the comprehensive utilization of culture farm sewage and biogas, and present method has good economy and society generalization is worth.
Accompanying drawing explanation
Fig. 1 is the haydite schematic diagram that prior art is produced;
Fig. 2 is the haydite schematic diagram that method of the present invention is produced;
Embodiment
Below in conjunction with accompanying drawing, the present invention is elaborated:
Embodiment 1
Utilize natural pond slag to produce a method for haydite, mainly comprise sequentially raw material preparation, homogeneous, granulation, calcining, cooling, screening, packaging step;
In described raw material preparation process: major ingredient is shale powder or mud powder, major ingredient granularity 30～100 orders, the natural pond slag of take in plant's methane-generating pit is whipping agent, natural pond slag obtains qualified natural pond ground-slag after dry, broken, screening after filtration, it is 200～400 orders that qualified natural pond ground-slag granularity is controlled, and qualified natural pond ground-slag mixes with major ingredient by 4～10% of major ingredient weight ratio;
In described homogenizing step: stir evenly at room temperature standing 5～10 hours homogeneous to mixing suitable quantity of water in compound;
In described calcining step: by first preheating after joining in calcining furnace after mixture granulation, preheating section Control for Kiln Temperature is at 300～600 ℃, be 3～4 hours warm up time, after preheating finishes, grain ball kiln car through preheating is pushed to furnace temperature and 1000～1300 ℃ of calcining sections, calcine, calcination time is 8～10 minutes; The factor that pre-heating stage is controlled is in the present invention preheating temperature and warm up time, these two factors all can be on final haydite mass formation impact, if preheating temperature is too high or warm up time the long raw material that all can cause at pre-heating stage, just produce a large amount of gas, cause raw material to make haydite swelling not good in the roasting stage because of expanding gas deficiency; But preheating is not enough, will cause bursting of raw material in high-temperature calcination process, all these all can have influence on the final performance of haydite, in the present invention, adopt tunnel furnace, because each section of temperature in kiln of thermograde in tunnel furnace is relatively fixing, be convenient to realize the control of preheating temperature and the control of time, utilize kiln car that product is placed in different temperature sections, as long as the period just can reach the processing requirement of production high-quality haydite.
In described cooling step: first adopt and force the type of cooling that haydite is cooled to rapidly to 1000 ℃～700 ℃; Secondly, adopt naturally cooling mode that haydite temperature is cooled to 400 ℃, last, then adopt the pressure type of cooling by haydite cool to room temperature.Reasonably haydite cooling system is: the haydite of roasting, after the zone of swelling the highest by temperature, can be cooled to rapidly 1000 ℃～700 ℃; But during from 700 ℃ to 400 ℃, require Slow cooling, because cooling rapidly, make the powerful temperature shrinkage stress of the inner and surperficial generation of haydite, cause its surface to occur netted microscopic checks, the granule strength of haydite is reduced, but below again can be cooling fast at 400 ℃.
As shown in Figure 1, 2, utilize the haydite that embodiment produces to compare with the haydite of existing method production, haydite regular shape, close to ball-type, the haydite that haydite hole distribution is produced than prior art is more even, and hole ratio can improve 5～10%, haydite intensity is high, 500kg/m
3haydite strength mark can reach 25～30MPa.
In the present embodiment, along with the incorporation increase of natural pond ground-slag just can be produced ultra-low-density and special light density haydite, and the haydite of different densities can be used for different thermal insulation concretes or varying strength concrete, also may be used on water quality evolution simultaneously and process and soilless culture industry.
Embodiment 2
Utilize natural pond slag to produce a method for haydite, mainly comprise sequentially raw material preparation, homogeneous, granulation, calcining, cooling, screening, packaging step;
In described raw material preparation process: major ingredient is shale powder or mud powder, major ingredient granularity 50～80 orders, the natural pond slag of take in plant's methane-generating pit is whipping agent, natural pond slag obtains qualified natural pond ground-slag after dry, broken, screening after filtration, it is 200～300 orders that qualified natural pond ground-slag granularity is controlled, and qualified natural pond ground-slag mixes with major ingredient by 6% of major ingredient weight ratio;
In described homogenizing step: stir evenly at room temperature standing 8 hours homogeneous to mixing suitable quantity of water in compound;
In described calcining step: adopt biogas as the calcining energy, by first preheating after joining in calcining furnace after mixture granulation, preheating section Control for Kiln Temperature is at 400～550 ℃, be 3.5 hours warm up time, after preheating finishes, grain ball kiln car through preheating is pushed to furnace temperature and 1000～1300 ℃ of calcining sections, calcine, calcination time is 9 minutes;
In described cooling step: first adopt the air-cooled pressure type of cooling that haydite is cooled to rapidly to 1000 ℃～700 ℃; Secondly, adopt naturally cooling mode that haydite temperature is cooled to 400 ℃; Finally, then adopt air-cooled pressure cooling by haydite cool to room temperature.
Adopt the haydite that the present embodiment is produced to compare with the haydite of existing method production, haydite hole distribution is more even, and hole ratio can improve 8～10%, and haydite intensity is high, 500kg/m
3haydite strength mark can reach 27～30MPa.
Embodiment 3
Utilize natural pond slag to produce a method for haydite, mainly comprise sequentially raw material preparation, homogeneous, granulation, calcining, cooling, screening, packaging step;
In described raw material preparation process: major ingredient is shale powder or mud powder, major ingredient granularity 60～100 orders, the natural pond slag of take in plant's methane-generating pit is whipping agent, natural pond slag obtains qualified natural pond ground-slag after dry, broken, screening after filtration, it is 200～300 orders that qualified natural pond ground-slag granularity is controlled, and qualified natural pond ground-slag mixes with major ingredient by 9% of major ingredient weight ratio;
In described homogenizing step: stir evenly at room temperature standing 10 hours homogeneous to mixing suitable quantity of water in compound;
In described calcining step: adopt biogas as the calcining energy, calcining furnace is tunnel furnace, by first preheating after joining in tunnel furnace after mixture granulation, preheating section Control for Kiln Temperature is at 300～600 ℃, be 4 hours warm up time, after preheating finishes, the grain ball kiln car through preheating is pushed to tunnel furnace furnace temperature and 1000～1300 ℃ of calcining sections, calcine, calcination time is 10 minutes;
In described cooling step: first adopt the air-cooled pressure type of cooling that haydite is cooled to rapidly to 1000 ℃～700 ℃; Secondly, adopt naturally cooling mode that haydite temperature is cooled to 400 ℃; Finally, then adopt the air-cooled pressure type of cooling by haydite cool to room temperature.
Adopt the haydite that the present embodiment is produced to compare with the haydite of existing method production, haydite hole distribution is more even, and hole ratio can improve 8%, and haydite intensity is high, and the haydite strength mark of 450kg/m3 can reach 25～28MPa.
Claims (4)
1. utilize natural pond slag to produce a method for haydite, mainly comprise sequentially raw material preparation, homogeneous, granulation, calcining, cooling, screening, packaging step, it is characterized in that:
In described raw material preparation process: major ingredient is shale powder or mud powder, major ingredient granularity 30～100 orders, the natural pond slag of take in plant's methane-generating pit is whipping agent, natural pond slag obtains qualified natural pond ground-slag after dry, broken, screening after filtration, it is 200～400 orders that qualified natural pond ground-slag granularity is controlled, and qualified natural pond ground-slag mixes with major ingredient by 4～10% of major ingredient weight ratio;
In described homogenizing step: stir evenly at room temperature standing 5～10 hours homogeneous to mixing suitable quantity of water in compound;
In described calcining step: by first preheating after joining in calcining furnace after mixture granulation, preheating section Control for Kiln Temperature is at 300～600 ℃, be 3～4 hours warm up time, after preheating finishes, grain ball kiln car through preheating is pushed to furnace temperature and 1000～1300 ℃ of calcining sections, calcine, calcination time is 8～10 minutes;
In described cooling step: first adopt and force the type of cooling that haydite is cooled to rapidly to 1000 ℃～700 ℃; Secondly, adopt naturally cooling mode that haydite temperature is cooled to 400 ℃; Finally, then adopt to force the type of cooling by haydite cool to room temperature.
2. a kind of method of utilizing natural pond slag to produce haydite according to claim 1, is characterized in that adopting biogas as the calcining energy in described calcining step.
3. a kind of method of utilizing natural pond slag to produce haydite according to claim 1, is characterized in that calcining furnace is tunnel furnace in described calcining step.
4. a kind of method of utilizing natural pond slag to produce haydite according to claim 1, is characterized in that the pressure type of cooling in described cooling step is air cooling way.
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| CN201410323745.1A CN104086217A (en) | 2014-07-09 | 2014-07-09 | Method for producing ceramsite by utilizing biogas residue |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060917A (en) * | 2015-07-03 | 2015-11-18 | 宁波市远扬新型建材科技有限公司 | Laboratory trial firing process for determining mix proportion of ceramic particle raw materials |
| CN109440965A (en) * | 2018-12-11 | 2019-03-08 | 鞍山千华环保有限公司 | Utilize the method and production line of kitchen castoff production natural gas and assembled wallboard |
| CN109680015A (en) * | 2019-02-01 | 2019-04-26 | 内蒙古千华环保科技有限公司 | Fowl poultry kind cultivation is butchered and agricultural wastes harmless treatment process and production line |
| CN109910158A (en) * | 2018-12-11 | 2019-06-21 | 鞍山千华环保有限公司 | Utilize the method and production line of municipal sludge production lightweight assembled wallboard |
| CN111393140A (en) * | 2020-03-25 | 2020-07-10 | 中冶武汉冶金建筑研究院有限公司 | Method for preparing novel ceramsite by using iron tailings and biogas residues |
| CN111847938A (en) * | 2020-07-06 | 2020-10-30 | 上海大学 | Method for producing environment-friendly ceramsite by utilizing biogas residue hydrothermal carbon |
| CN115536363A (en) * | 2022-09-26 | 2022-12-30 | 中科仁创(广州)环保科技开发有限公司 | Ceramsite and preparation method thereof |
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| CN102092994A (en) * | 2010-11-25 | 2011-06-15 | 大连恒翔粉煤灰综合利用有限公司 | Fly ash sintering-free ceramsite |
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Non-Patent Citations (1)
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| 杨晓华等: "利用江河淤泥、页岩、生物污泥生产陶粒", 《新型建筑材料》, no. 11, 30 November 2010 (2010-11-30) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105060917A (en) * | 2015-07-03 | 2015-11-18 | 宁波市远扬新型建材科技有限公司 | Laboratory trial firing process for determining mix proportion of ceramic particle raw materials |
| CN109440965A (en) * | 2018-12-11 | 2019-03-08 | 鞍山千华环保有限公司 | Utilize the method and production line of kitchen castoff production natural gas and assembled wallboard |
| CN109910158A (en) * | 2018-12-11 | 2019-06-21 | 鞍山千华环保有限公司 | Utilize the method and production line of municipal sludge production lightweight assembled wallboard |
| CN109680015A (en) * | 2019-02-01 | 2019-04-26 | 内蒙古千华环保科技有限公司 | Fowl poultry kind cultivation is butchered and agricultural wastes harmless treatment process and production line |
| CN111393140A (en) * | 2020-03-25 | 2020-07-10 | 中冶武汉冶金建筑研究院有限公司 | Method for preparing novel ceramsite by using iron tailings and biogas residues |
| CN111847938A (en) * | 2020-07-06 | 2020-10-30 | 上海大学 | Method for producing environment-friendly ceramsite by utilizing biogas residue hydrothermal carbon |
| CN115536363A (en) * | 2022-09-26 | 2022-12-30 | 中科仁创(广州)环保科技开发有限公司 | Ceramsite and preparation method thereof |
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Application publication date: 20141008 |