CN104446285A - Method for preparing concrete product from stale refuse - Google Patents
Method for preparing concrete product from stale refuse Download PDFInfo
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- CN104446285A CN104446285A CN201410786126.6A CN201410786126A CN104446285A CN 104446285 A CN104446285 A CN 104446285A CN 201410786126 A CN201410786126 A CN 201410786126A CN 104446285 A CN104446285 A CN 104446285A
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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
Te invention discloses a concrete product manufactured from stale refuse. The concrete product comprises the following components in parts by weight: 30-40 parts of stale refuse powder, 5-15 parts of quicklime, 5-10 parts of cement, 5-10 parts of clay, 5-10 parts of light-burnt magnesia, 5-10 parts of halogen powder, 1-2 parts of rock sand essence, 0.5-1 part of potassium chloride, 0.1-1 part of a water reducing agent, 0.1-1 part of an early strength agent and an appropriate amount of water. The method for preparing the concrete product comprises the following steps: performing impurity removal and drying pretreatment on the stale refuse, then breaking and crushing the stale refuse into 5-8nm powder; mixing dry materials, adding water to perform wet material mixing, and conveying wet materials to a non-kiln brick machine for compression molding; and performing steam curing on the molded concrete product, and performing natural curing to obtain a finished product. By adopting the method disclosed by the invention, the problem of treating the stale refuse can be effectively solved, and secondary utilization of the stale refuse can be realized; the prepared concrete product is beautiful and smooth in appearance, does not have scum and burst areas, is consistent in color, and has very high strength, pressure resistance, frost resistance, fracture resistance, durability and weathering resistance.
Description
Technical field
The present invention relates to a kind of method manufacturing concrete product, be specifically related to a kind of method utilizing old rubbish to manufacture concrete product.
Background technology
Since 20 century 70s, China starts to adopt burying method process to dispose domestic waste gradually.So far landfill has become the main disposal options of China's domestic waste, and the Domestic Refuse adopting burying method process to dispose accounts for more than 70% of whole treatment capacity, and built multiple large-scale landfill, inserts several ten million tons, rubbish.There is due to sanitary landfill method the advantages such as reduced investment, technique are simple, convenient management, applied widely, maintenance cost is low, according to China's economic and technique level and domestic waste composition situation, within longer one period from now on, China's Disposal of City Domestic Garbage will based on landfill.
Adopt landfill method process to dispose domestic refuse and still face several large outstanding problem: one is that the generation of domestic refuse increases sharply with the speed of 7%-9% every year, and the area of required landfill yard is increasing; Two is that city scope is constantly expanded to surrounding area, and suburbs land price escalates, and make the addressing of landfill yard more and more difficult, even cannot find suitable site, huge Municipal Garbage Yield contradicts with the land resources of growing tension; Three is that after China's the 70's of 20th century, especially a large amount of refuse landfills of building of 8O middle and later periods in age have reached or have been about to reach working life, and construction again and the recycling problem of landfill yard become more and more sharp-pointed.Particularly a large amount of informal landfill causes negative impact to ambient air, soil, water body and resident living environment, takies a large amount of valuable land resources simultaneously.Therefore, extremely urgent to the control of the old rubbish of refuse landfill.
At present, for the recycling of old rubbish, be mainly divided into several lower several, one is that the waste or used plastics out filtered out is used for regeneration raw materials for plastics production, two is that the combustiblematerials screened is used for changing into inflammable gas, and three is that the brick stone screened is used for making hollow brick.In old rubbish, the quantity of brick stone is fewer, with queen closer or stone for originally to prepare hollow brick, there is the problem of starving; Further, current technique can only prepare hollow brick, the single and non-constant of the intensity of hollow brick of kind.And domestic refuse is after the old process of 8-10, major part material degenerates into soil ulmin, this soil ulmin except can be used for improvement soil, build up fields make fertilizer except there is no better purposes, even if manufacture fertilizer, also special fermentation installation is needed, not only take a large amount of soils, and cost compare is high.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, a kind of concrete product utilizing old rubbish to manufacture and preparation method thereof is provided, the method is with the soil ulmin filtered out in old rubbish for concrete product prepared by raw material, and raw material is sufficient, stable; The concrete product of preparation, not only smooth surface, intensity are high, and have excellent crushing resistance, fold resistance, weather resistance, frost resistance and fastness to efflorescence.
In order to achieve the above object, the technical solution used in the present invention is as follows:
First the present invention provides a kind of concrete product utilizing old rubbish to manufacture, and comprises old rubbish powder 30-40 part, unslaked lime 5-15 part, cement 5-10 part, clay 5-10 part, magnesia unslacked 5-10 part, halogen powder 5-10 part, rock sand essence 1-2 part, Repone K 0.5-1 part, water reducer 0.1-1 part, the strong agent 0.1-1 part of drought and water appropriate.
Preferably, described water reducer is calcium lignin sulphonate.
Preferably, the mixture that the strong agent of described drought is sodium-chlor, calcium chloride, trolamine and amine acetate sulfosalt mix with arbitrary proportion.
Unslaked lime, magnesia unslacked, halogen powder, Repone K, water reducer and the strong agent of drought are powder, increase the cement of suitable proportion in old rubbish powder, are conducive to the weather resistance improving concrete product; And calcium hydroxide after unslaked lime slaking, can be generated, all have important effect to the early stage of cement and later strength, be jointing compound and the alkali-activator of forming concrete products simultaneously; Clay and rock sand essence also play the effect of jointing compound; Water reducer effectively can increase the mobility of compound, significantly reduces mixing water amount, thus the degree of compactness of raising concrete product, intensity, permeability resistance and frost resistance; After Repone K and other raw material mix, not only can provide drying values and the shrinkage value of product, the freeze-thaw resistance of product can be improved simultaneously.
The present invention also provides a kind of method manufacturing above-mentioned concrete product, comprises the following steps:
(1) old screening rubbish, pre-treatment: old rubbish sieves out soil ulmin after step-sizing technique, soil ulmin is delivered in magnetic separator and removes metallics, again soil ulmin is delivered in drying machine, after drying 1-2h under 50 ± 1 DEG C of conditions, obtains the old rubbish of drying;
(2) old refuse breaking, pulverizing: the old rubbish of drying is delivered in crusher, is broken into the fragment of particle diameter 1-2cm, then fragment is delivered in wheel roller, pulverize into the old rubbish powder that particle diameter is 5-8mm; Wheel roller has stone roller and rubs up stirring action, can control product fineness very easily, pulverizes strong adaptability, simple structure, easy to operate.
(3) siccative mixing: the old rubbish powder of corresponding proportion, unslaked lime, cement, clay, magnesia unslacked, halogen powder, rock sand essence, Repone K, water reducer, the strong agent of drought are delivered in concrete mixer, control rotating speed is 23-35r/min, and churning time is 0.5-2h;
(4) wet feed mixing: use the water-carriage system of concrete mixer to add water in siccative, continue to stir, control rotating speed is 23-35r/min, and churning time is 1-5h;
(5) compression moulding: wet feed is delivered to compression moulding in non-baking brick machine, shaping concrete product is delivered in physical environment after vapor cure 2-5h, and natural curing 5-10d is finished product.
Preferably, in step 3, described rotating speed is 25-30r/min, and churning time is 1-2h.
Preferably, in step 4, described adds water in siccative, and the weight ratio of water and siccative is 1:3-5.
Preferably, in step 4, the described rotating speed stated is 30-35r/min, and churning time is 2-4h.
Preferably, in step 5, described steam-cured condition is, steam curing temperature 90-100 DEG C, and the steam-cured time is 2-3h.
The inventive method effectively can solve the process problem of old rubbish, can carry out second stage employ again to it; Preparation concrete product, specious, smooth, without scum, without burst district, solid colour, there is very high intensity, crushing resistance, frost resistance, fold resistance, weather resistance and fastness to efflorescence.
Embodiment
Be specifically described of the present invention below in conjunction with specific embodiment and embodiment.
Embodiment 1:
The concrete product utilizing old rubbish to manufacture, comprises old rubbish powder 36 parts, unslaked lime 13 parts, cement 8 parts, clay 8 parts, magnesia unslacked 5 parts, 7 parts, halogen powder, rock sand essence 1.5 parts, 1 part, Repone K, calcium lignin sulphonate 1 part, the strong agent 0.5 part of drought and water appropriate; The mixture that the strong agent of described drought is sodium-chlor, calcium chloride, trolamine and amine acetate sulfosalt mix with arbitrary proportion.
The method of above-mentioned concrete product, comprises the following steps:
(1) old screening rubbish, pre-treatment: old rubbish sieves out soil ulmin after step-sizing technique, soil ulmin is delivered in magnetic separator and removes metallics, again soil ulmin is delivered in drying machine, after drying 1-2h under 50 ± 1 DEG C of conditions, obtains the old rubbish of drying;
(2) old refuse breaking, pulverizing: the old rubbish of drying is delivered in crusher, is broken into the fragment of particle diameter 1-2cm, then fragment is delivered in wheel roller, pulverize into the old rubbish powder that particle diameter is 5-8mm; Wheel roller has stone roller and rubs up stirring action, can control product fineness very easily, pulverizes strong adaptability, simple structure, easy to operate.
(3) siccative mixing: the old rubbish powder of corresponding proportion, unslaked lime, cement, clay, magnesia unslacked, halogen powder, rock sand essence, Repone K, water reducer, the strong agent of drought are delivered in concrete mixer, control rotating speed is 30-32r/min, and churning time is 1h;
(4) wet feed mixing: use the water-carriage system of concrete mixer to add water in siccative, the weight ratio of water and siccative is that 1:3 continues to stir, and control rotating speed is 30-32r/min, and churning time is 3h;
(5) compression moulding: wet feed is delivered to compression moulding in the non-baking brick machine of wall-building brick, shaping concrete product through vapor cure, steam curing temperature 96-98 DEG C, the steam-cured time is deliver in physical environment after 3h, natural curing 7d is finished product, and finished bricks is wall-building brick.
Embodiment 2:
The concrete product utilizing old rubbish to manufacture, comprises old rubbish powder 32 parts, unslaked lime 10 parts, cement 7 parts, clay 7 parts, magnesia unslacked 7 parts, 6 parts, halogen powder, rock sand essence 1 part, 1 part, Repone K, calcium lignin sulphonate 0.5 part, the strong agent 0.5 part of drought and water appropriate; The mixture that the strong agent of described drought is sodium-chlor, calcium chloride, trolamine and amine acetate sulfosalt mix with arbitrary proportion.
The method of above-mentioned concrete product, comprises the following steps:
(1) old screening rubbish, pre-treatment: old rubbish sieves out soil ulmin after step-sizing technique, soil ulmin is delivered in magnetic separator and removes metallics, again soil ulmin is delivered in drying machine, after drying 1-2h under 50 ± 1 DEG C of conditions, obtains the old rubbish of drying;
(2) old refuse breaking, pulverizing: the old rubbish of drying is delivered in crusher, is broken into the fragment of particle diameter 1-2cm, then fragment is delivered in wheel roller, pulverize into the old rubbish powder that particle diameter is 5-8mm; Wheel roller has stone roller and rubs up stirring action, can control product fineness very easily, pulverizes strong adaptability, simple structure, easy to operate.
(3) siccative mixing: the old rubbish powder of corresponding proportion, unslaked lime, cement, clay, magnesia unslacked, halogen powder, rock sand essence, Repone K, water reducer, the strong agent of drought are delivered in concrete mixer, control rotating speed is 28-30r/min, and churning time is 2h;
(4) wet feed mixing: use the water-carriage system of concrete mixer to add water in siccative, the weight ratio of water and siccative is 1:4, continue to stir, control rotating speed is 30-31r/min, and churning time is 4h;
(5) compression moulding: wet feed is delivered to compression moulding in Footpath brick non-baking brick machine, shaping concrete product is through vapor cure, and steam curing temperature 90-92 DEG C, the steam-cured time is deliver in physical environment after 2h, and natural curing 7d is finished product, and finished product is Footpath brick.
Embodiment 3
The concrete product utilizing old rubbish to manufacture, comprises old rubbish powder 30 parts, unslaked lime 10 parts, cement 8 parts, clay 8 parts, magnesia unslacked 7 parts, 7 parts, halogen powder, rock sand essence 2 parts, 1 part, Repone K, calcium lignin sulphonate 1 part, the strong agent 1 part of drought and water appropriate; The mixture that the strong agent of described drought is sodium-chlor, calcium chloride, trolamine and amine acetate sulfosalt mix with arbitrary proportion.
The method of above-mentioned concrete product, comprises the following steps:
(1) old screening rubbish, pre-treatment: old rubbish sieves out soil ulmin after step-sizing technique, soil ulmin is delivered in magnetic separator and removes metallics, again soil ulmin is delivered in drying machine, after drying 1-2h under 50 ± 1 DEG C of conditions, obtains the old rubbish of drying;
(2) old refuse breaking, pulverizing: the old rubbish of drying is delivered in crusher, is broken into the fragment of particle diameter 1-2cm, then fragment is delivered in wheel roller, pulverize into the old rubbish powder that particle diameter is 5-8mm; Wheel roller has stone roller and rubs up stirring action, can control product fineness very easily, pulverizes strong adaptability, simple structure, easy to operate.
(3) siccative mixing: the old rubbish powder of corresponding proportion, unslaked lime, cement, clay, magnesia unslacked, halogen powder, rock sand essence, Repone K, water reducer, the strong agent of drought are delivered in concrete mixer, control rotating speed is 23-25r/min, and churning time is 2h;
(4) wet feed mixing: use the water-carriage system of concrete mixer to add water in siccative, the weight ratio of water and siccative is 1:3, continue to stir, control rotating speed is 30-32r/min, and churning time is 4h;
(5) compression moulding: wet feed is delivered to compression moulding in hollow brick non-baking brick machine, shaping concrete product through vapor cure, steam curing temperature 90-100 DEG C, the steam-cured time is deliver in physical environment after 2-3h, natural curing 10d is finished product, and finished product is hollow brick.
Embodiment 4
Test of product performance, often organize random choose 20 pieces of goods, check its apparent characteristic, result is as shown in table 1:
Table 1: product appearance characteristic of the present invention
As shown in Table 1, the wall-building brick prepared with the soil ulmin after old screening rubbish, Footpath brick and hollow brick, its apparent and normal fire refractory brick or non-burning brick outward appearance, without obvious difference, can reach roasting dress and non-burning brick standard.
Detect the finished product that embodiment of the present invention 1-3 obtains according to GB8239-1997, GB/T21144-2007, product performance are as shown in table 2:
Table 2: product performance of the present invention
As shown in Table 2, its ultimate compression strength of wall-building brick, Footpath brick and hollow brick of preparing of the inventive method is former is more than standard value 10Mpa, even hollow brick also has good intensity; And there is the performances such as good frost resistance, water tolerance.
Above-mentioned example just for technical conceive of the present invention and technical characterstic are described, can not limit the scope of the invention with this.The equivalent transformation that all essence according to the present invention is done or modification, all should be encompassed within protection scope of the present invention.
Claims (8)
1. the concrete product utilizing old rubbish to manufacture, it is characterized in that, comprise old rubbish powder 30-40 part, unslaked lime 5-15 part, cement 5-10 part, clay 5-10 part, magnesia unslacked 5-10 part, halogen powder 5-10 part, rock sand essence 1-2 part, Repone K 0.5-1 part, water reducer 0.1-1 part, the strong agent 0.1-1 part of drought and water appropriate.
2. concrete product according to claim 1, is characterized in that, described water reducer is calcium lignin sulphonate.
3. concrete product according to claim 1, is characterized in that, the mixture that the strong agent of described drought is sodium-chlor, calcium chloride, trolamine and amine acetate sulfosalt mix with arbitrary proportion.
4. a preparation method for the concrete product described in any one of claim 1-3, is characterized in that,
(1) old screening rubbish, pre-treatment: old rubbish sieves out soil ulmin after step-sizing technique, soil ulmin is delivered in magnetic separator and removes metallics, again soil ulmin is delivered in drying machine, after drying 1-2h under 50 ± 1 DEG C of conditions, obtains the old rubbish of drying;
(2) old refuse breaking, pulverizing: the old rubbish of drying is delivered in crusher, is broken into the fragment of particle diameter 1-2cm, then fragment is delivered in wheel roller, pulverize into the old rubbish powder that particle diameter is 5-8mm;
(3) siccative mixing: the old rubbish powder of corresponding proportion, unslaked lime, cement, clay, magnesia unslacked, halogen powder, rock sand essence, Repone K, water reducer, the strong agent of drought are delivered in concrete mixer, control rotating speed is 23-35r/min, and churning time is 0.5-2h;
(4) wet feed mixing: use the water-carriage system of concrete mixer to add water in siccative, continue to stir, control rotating speed is 23-35r/min, and churning time is 1-5h;
(5) compression moulding: wet feed is delivered to compression moulding in non-baking brick machine, shaping concrete product is delivered in physical environment after vapor cure 2-5h, and natural curing 5-10d is finished product.
5. method according to claim 4, is characterized in that, in step 3, described rotating speed is 25-30r/min, and churning time is 1-2h.
6. method according to claim 4, is characterized in that, in step 4, described adds water in siccative, and the weight ratio of water and siccative is 1:3-5.
7. method according to claim 4, is characterized in that, in step 4, the described rotating speed stated is 30-35r/min, and churning time is 2-4h.
8. method according to claim 4, is characterized in that, in step 5, described steam-cured condition is, steam curing temperature 90-100 DEG C, and the steam-cured time is 2-3h.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105693159A (en) * | 2015-09-18 | 2016-06-22 | 安庆惠嘉新型建材有限公司 | Shale hollow brick containing quartz tailing sand and preparation method thereof |
| CN105693150A (en) * | 2015-09-18 | 2016-06-22 | 安庆惠嘉新型建材有限公司 | Porous non-load-bearing sintered shale hollow brick and preparation method thereof |
| CN105693199A (en) * | 2015-09-18 | 2016-06-22 | 安庆惠嘉新型建材有限公司 | Light shale cavity bricks and preparation method thereof |
| CN105693211A (en) * | 2015-09-18 | 2016-06-22 | 安庆惠嘉新型建材有限公司 | Coal ash shale hollow brick and preparation method thereof |
| CN108558290A (en) * | 2018-05-18 | 2018-09-21 | 阿尔法环能生物能源有限公司 | A method of manufacturing concrete using aging rubbish |
| CN108746152A (en) * | 2018-05-22 | 2018-11-06 | 北京建筑大学 | A kind of method and system making construction material with aging rubbish |
| CN109127683A (en) * | 2018-10-31 | 2019-01-04 | 中亿丰建设集团股份有限公司 | A kind of aging process for treating garbage as resource |
| CN111282951A (en) * | 2019-12-27 | 2020-06-16 | 庞强 | Landfill stale refuse treatment system and method |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105693159A (en) * | 2015-09-18 | 2016-06-22 | 安庆惠嘉新型建材有限公司 | Shale hollow brick containing quartz tailing sand and preparation method thereof |
| CN105693150A (en) * | 2015-09-18 | 2016-06-22 | 安庆惠嘉新型建材有限公司 | Porous non-load-bearing sintered shale hollow brick and preparation method thereof |
| CN105693199A (en) * | 2015-09-18 | 2016-06-22 | 安庆惠嘉新型建材有限公司 | Light shale cavity bricks and preparation method thereof |
| CN105693211A (en) * | 2015-09-18 | 2016-06-22 | 安庆惠嘉新型建材有限公司 | Coal ash shale hollow brick and preparation method thereof |
| CN108558290A (en) * | 2018-05-18 | 2018-09-21 | 阿尔法环能生物能源有限公司 | A method of manufacturing concrete using aging rubbish |
| CN108746152A (en) * | 2018-05-22 | 2018-11-06 | 北京建筑大学 | A kind of method and system making construction material with aging rubbish |
| CN108746152B (en) * | 2018-05-22 | 2020-06-26 | 北京建筑大学 | Method and system for manufacturing building material by using stale garbage |
| CN109127683A (en) * | 2018-10-31 | 2019-01-04 | 中亿丰建设集团股份有限公司 | A kind of aging process for treating garbage as resource |
| CN111282951A (en) * | 2019-12-27 | 2020-06-16 | 庞强 | Landfill stale refuse treatment system and method |
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