CN104446285B - A kind of method utilizing old rubbish to manufacture concrete product - Google Patents
A kind of method utilizing old rubbish to manufacture concrete product Download PDFInfo
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- CN104446285B CN104446285B CN201410786126.6A CN201410786126A CN104446285B CN 104446285 B CN104446285 B CN 104446285B CN 201410786126 A CN201410786126 A CN 201410786126A CN 104446285 B CN104446285 B CN 104446285B
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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 invention discloses a kind of concrete product utilizing old rubbish to manufacture, appropriate including old rubbish powder 30 40 parts, quick lime 5 15 parts, cement 5 10 parts, clay 5 10 parts, magnesia unslacked 5 10 parts, 5 10 parts of halogen powder, Rocky sand crystal 12 parts, 0.5 1 parts of potassium chloride, water reducer 0.1 1 parts, the strong agent of drought 0.1 1 parts and water.Old rubbish through remove impurity, be dried after pretreatment that to be broken, pulverize be the powder of 5 8nm；Add water and carry out wet feed mixing after siccative mixing, wet feed is delivered in non-baking brick machine compressing, the concrete product of molding after steam curing again natural curing be finished product.The inventive method can effectively solve the process problem of old rubbish, it can be carried out secondary utilization again；The concrete product of preparation, specious, smooth, without scum, without bursting area, solid colour, there is the highest intensity, crushing resistance, frost resistance, fold resistance, durability and resistance to weathering.
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 gradually begins with burying method and processes disposal domestic waste.So far fill the main disposal options having become China's domestic waste, use burying method to process the Domestic Refuse disposed and account for more than the 70% of whole treating capacity, built multiple large-scale landfills, insert several ten million tons of rubbish.There is the advantages such as reduced investment, technique is simple, convenient management, applied widely, maintenance cost is low due to sanitary landfill method, situation is formed according to China's economic and technique level and domestic waste, within the longest one period, China's Disposal of City Domestic Garbage will be based on landfill.
Use landfill method to process to dispose house refuse and still face several big outstanding problem: one is that the generation amount of house 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 constantly extends to surrounding area, and suburbs land price escalates, and the addressing making landfill yard is more and more difficult, and suitable site, huge Municipal Garbage Yield even cannot be found to contradict with the land resource of growing tension；Three is that a large amount of refuse landfills that especially 8O age middle and late stage is built after China's the 70's of 20th century have reached or have i.e. been up to service life, and construction again and the recycling problem of landfill yard become more and more sharp-pointed.Particularly a large amount of informal landfill cause negative effect to ambient air, soil, water body and resident living environment, take a large amount of valuable land resource simultaneously.Therefore, the control of rubbish old to refuse landfill is extremely urgent.
At present, for the recycling of old rubbish, be broadly divided into several under several, one is that the waste or used plastics out filtered out is for regeneration raw materials for plastics production, two be screening combustible for changing into fuel gas, three be screening brick stone for making hollow brick.In old rubbish, the quantity of brick stone is fewer, with queen closer or stone for originally preparing hollow brick, and the problem that there is starving；Further, current technique can only prepare hollow brick, and single and hollow brick the intensity of kind is excessively poor.And house refuse is after the old process of 8-10, major part material degenerates into humus, this humus except can be used to improve soil, build up fields make fertilizer in addition to there is no more preferable purposes, even if being manufactured into fertilizer, it is also required to special fermentation installation, not only take substantial amounts of soil, and cost is higher.
Summary of the invention
The technical problem to be solved 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 prepares concrete product with the humus filtered out in old rubbish for raw material, and raw material is sufficient, stable；The concrete product of preparation, not only smooth surface, intensity height, and there is crushing resistance, fold resistance, durability, frost resistance and the resistance to weathering of excellence.
In order to achieve the above object, the technical solution used in the present invention is as follows:
Present invention firstly provides a kind of concrete product utilizing old rubbish to manufacture, appropriate including old rubbish powder 30-40 part, quick lime 5-15 part, cement 5-10 part, clay 5-10 part, magnesia unslacked 5-10 part, halogen powder 5-10 part, Rocky sand crystal 1-2 part, potassium chloride 0.5-1 part, water reducer 0.1-1 part, the strong agent 0.1-1 part of drought and water.
Preferably, described water reducer is calcium lignosulfonate.
Preferably, the strong agent of described drought is the mixture that sodium chloride, calcium chloride, triethanolamine and ammonium acetate sulfosalt mix with arbitrary proportion.
Quick lime, magnesia unslacked, halogen powder, potassium chloride, water reducer and the strong agent of drought are powder, increase the cement of proper proportion in old rubbish powder, are conducive to improving the durability of concrete product；And calcium hydroxide after quick lime ripening, can be generated, all there are important effect early stage and later strength to cement, are cementing agent and the alkali-activator of forming concrete products simultaneously；Clay and Rocky sand crystal also function to the effect of cementing agent；Water reducer can effectively increase the mobility of compound, mixing water amount is greatly reduced, thus improves the degree of compaction of concrete product, intensity, permeability resistance and frost resistance；After potassium chloride 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 for a kind of method manufacturing above-mentioned concrete product, comprises the following steps:
(1) old screening rubbish, pretreatment: old rubbish screens out humus after step-sizing technique, it is delivered to humus in magnetic separator remove metallics, again humus is delivered in drying machine, after drying 1-2h under the conditions of 50 ± 1 DEG C, obtains the old rubbish dried；
(2) old refuse breaking, pulverizing: the old rubbish dried is delivered in disintegrating machine, is broken into the fragment of particle diameter 1-2cm, then fragment is delivered in edge runner mill, pulverize into the old rubbish powder that particle diameter is 5-8mm；Edge runner mill has stone roller and rubs up stirring action, can control product fineness very easily, pulverizes strong adaptability, and simple structure is easy to operate.
(3) siccative mixing: the old rubbish powder of corresponding proportion, quick lime, cement, clay, magnesia unslacked, halogen powder, Rocky sand crystal, potassium chloride, water reducer, the strong agent of drought are delivered in concrete mixer, control rotating speed is 23-35r/min, and mixing time is 0.5-2h；
(4) wet feed mixing: using the water-carriage system of concrete mixer to add water in siccative, continue stirring, control rotating speed is 23-35r/min, and mixing time is 1-5h；
(5) compressing: to be delivered to by wet feed in non-baking brick machine compressing, the concrete product of molding is delivered in natural environment after steam curing 2-5h, and natural curing 5-10d is finished product.
Preferably, in step 3, described rotating speed is 25-30r/min, and mixing time is 1-2h.
Preferably, in step 4, described adds water in siccative, and water is 1:3-5 with the weight ratio of siccative.
Preferably, in step 4, the described rotating speed stated is 30-35r/min, and mixing 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 can effectively solve the process problem of old rubbish, it can be carried out secondary utilization again；The concrete product of preparation, specious, smooth, without scum, without bursting area, solid colour, there is the highest intensity, crushing resistance, frost resistance, fold resistance, durability and resistance to weathering.
Detailed description of the invention
Below in conjunction with specific embodiment and embodiment, the present invention is specifically described.
Embodiment 1:
A kind of concrete product utilizing old rubbish to manufacture, appropriate including old rubbish powder 36 parts, quick lime 13 parts, cement 8 parts, clay 8 parts, magnesia unslacked 5 parts, 7 parts of halogen powder, Rocky sand crystal 1.5 parts, 1 part of potassium chloride, calcium lignosulfonate 1 part, the strong agent of drought 0.5 part and water；The strong agent of described drought is the mixture that sodium chloride, calcium chloride, triethanolamine and ammonium acetate sulfosalt mix with arbitrary proportion.
The method of above-mentioned concrete product, comprises the following steps:
(1) old screening rubbish, pretreatment: old rubbish screens out humus after step-sizing technique, it is delivered to humus in magnetic separator remove metallics, again humus is delivered in drying machine, after drying 1-2h under the conditions of 50 ± 1 DEG C, obtains the old rubbish dried；
(2) old refuse breaking, pulverizing: the old rubbish dried is delivered in disintegrating machine, is broken into the fragment of particle diameter 1-2cm, then fragment is delivered in edge runner mill, pulverize into the old rubbish powder that particle diameter is 5-8mm；Edge runner mill has stone roller and rubs up stirring action, can control product fineness very easily, pulverizes strong adaptability, and simple structure is easy to operate.
(3) siccative mixing: the old rubbish powder of corresponding proportion, quick lime, cement, clay, magnesia unslacked, halogen powder, Rocky sand crystal, potassium chloride, water reducer, the strong agent of drought being delivered in concrete mixer, control rotating speed is 30-32r/min, and mixing time is 1h；
(4) wet feed mixing: using the water-carriage system of concrete mixer to add water in siccative, water is that 1:3 continues stirring with the weight ratio of siccative, and control rotating speed is 30-32r/min, and mixing time is 3h；
(5) compressing: to be delivered to by wet feed in the non-baking brick machine of wall-building brick compressing, the concrete product of molding is through steam curing, and steam curing temperature 96-98 DEG C, the steam-cured time is to deliver in natural environment after 3h, and natural curing 7d is finished product, and finished bricks is wall-building brick.
Embodiment 2:
A kind of concrete product utilizing old rubbish to manufacture, appropriate including old rubbish powder 32 parts, quick lime 10 parts, cement 7 parts, clay 7 parts, magnesia unslacked 7 parts, 6 parts of halogen powder, Rocky sand crystal 1 part, 1 part of potassium chloride, calcium lignosulfonate 0.5 part, the strong agent of drought 0.5 part and water；The strong agent of described drought is the mixture that sodium chloride, calcium chloride, triethanolamine and ammonium acetate sulfosalt mix with arbitrary proportion.
The method of above-mentioned concrete product, comprises the following steps:
(1) old screening rubbish, pretreatment: old rubbish screens out humus after step-sizing technique, it is delivered to humus in magnetic separator remove metallics, again humus is delivered in drying machine, after drying 1-2h under the conditions of 50 ± 1 DEG C, obtains the old rubbish dried；
(2) old refuse breaking, pulverizing: the old rubbish dried is delivered in disintegrating machine, is broken into the fragment of particle diameter 1-2cm, then fragment is delivered in edge runner mill, pulverize into the old rubbish powder that particle diameter is 5-8mm；Edge runner mill has stone roller and rubs up stirring action, can control product fineness very easily, pulverizes strong adaptability, and simple structure is easy to operate.
(3) siccative mixing: the old rubbish powder of corresponding proportion, quick lime, cement, clay, magnesia unslacked, halogen powder, Rocky sand crystal, potassium chloride, water reducer, the strong agent of drought being delivered in concrete mixer, control rotating speed is 28-30r/min, and mixing time is 2h；
(4) wet feed mixing: using the water-carriage system of concrete mixer to add water in siccative, water is 1:4 with the weight ratio of siccative, continues stirring, and control rotating speed is 30-31r/min, and mixing time is 4h；
(5) compressing: to be delivered to by wet feed in Footpath brick non-baking brick machine compressing, the concrete product of molding is through steam curing, and steam curing temperature 90-92 DEG C, the steam-cured time is to deliver in natural environment after 2h, and natural curing 7d is finished product, and finished product is Footpath brick.
Embodiment 3
A kind of concrete product utilizing old rubbish to manufacture, appropriate including old rubbish powder 30 parts, quick lime 10 parts, cement 8 parts, clay 8 parts, magnesia unslacked 7 parts, 7 parts of halogen powder, Rocky sand crystal 2 parts, 1 part of potassium chloride, calcium lignosulfonate 1 part, the strong agent of drought 1 part and water；The strong agent of described drought is the mixture that sodium chloride, calcium chloride, triethanolamine and ammonium acetate sulfosalt mix with arbitrary proportion.
The method of above-mentioned concrete product, comprises the following steps:
(1) old screening rubbish, pretreatment: old rubbish screens out humus after step-sizing technique, it is delivered to humus in magnetic separator remove metallics, again humus is delivered in drying machine, after drying 1-2h under the conditions of 50 ± 1 DEG C, obtains the old rubbish dried；
(2) old refuse breaking, pulverizing: the old rubbish dried is delivered in disintegrating machine, is broken into the fragment of particle diameter 1-2cm, then fragment is delivered in edge runner mill, pulverize into the old rubbish powder that particle diameter is 5-8mm；Edge runner mill has stone roller and rubs up stirring action, can control product fineness very easily, pulverizes strong adaptability, and simple structure is easy to operate.
(3) siccative mixing: the old rubbish powder of corresponding proportion, quick lime, cement, clay, magnesia unslacked, halogen powder, Rocky sand crystal, potassium chloride, water reducer, the strong agent of drought being delivered in concrete mixer, control rotating speed is 23-25r/min, and mixing time is 2h；
(4) wet feed mixing: using the water-carriage system of concrete mixer to add water in siccative, water is 1:3 with the weight ratio of siccative, continues stirring, and control rotating speed is 30-32r/min, and mixing time is 4h；
(5) compressing: to be delivered to by wet feed in hollow brick non-baking brick machine compressing, the concrete product of molding is through steam curing, and steam curing temperature 90-100 DEG C, the steam-cured time is to deliver in natural environment after 2-3h, and natural curing 10d is finished product, and finished product is hollow brick.
Embodiment 4
Test of product performance, often group 20 pieces of goods of random choose, check its apparent characteristic, and result is as shown in table 1:
Table 1: product appearance characteristic of the present invention
As shown in Table 1, wall-building brick, Footpath brick and the hollow brick prepared with the humus after old screening rubbish, its apparent and normal fire refractory brick or non-burning brick outward appearance, without being clearly distinguished from, can reach roasting dress and non-burning brick standard.
Detecting according to the finished product that embodiment of the present invention 1-3 is obtained by GB8239-1997, GB/T21144-2007, properties of product are as shown in table 2:
Table 2: properties of product of the present invention
As shown in Table 2, its comprcssive strength of wall-building brick, Footpath brick and hollow brick that prepared by 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, resistance to water.
Examples detailed above simply for technology design and the technical characterstic of the present invention are described, can not limit the scope of the invention with this.All equivalent transformations done according to the essence of the present invention or modification, all should contain within protection scope of the present invention.
Claims (5)
1. the preparation method of a concrete product, it is characterised in that
(1) old screening rubbish, pretreatment: old rubbish screens out humus after step-sizing technique, it is delivered to humus in magnetic separator remove metallics, again humus is delivered in drying machine, after drying 1-2h under the conditions of 50 ± 1 DEG C, obtains the old rubbish dried；
(2) old refuse breaking, pulverizing: the old rubbish dried is delivered in disintegrating machine, is broken into the fragment of particle diameter 1-2cm, then fragment is delivered in edge runner mill, pulverize into the old rubbish powder that particle diameter is 5-8mm；
(3) siccative mixing: by the old rubbish powder of corresponding proportion, quick lime, cement, clay, magnesia unslacked, halogen powder, rock sand
The strong agent of crystalline substance, potassium chloride, water reducer, drought is delivered in concrete mixer, and control rotating speed is 23-35r/min, and mixing time is 0.5-2h；
(4) wet feed mixing: using the water-carriage system of concrete mixer to add water in siccative, continue stirring, control rotating speed is 23-35r/min, and mixing time is 1-5h；
(5) compressing: to be delivered to by wet feed in non-baking brick machine compressing, the concrete product of molding is delivered in natural environment after steam curing 2-5h, and natural curing 5-10d is finished product；
Described concrete product, including old rubbish powder 30-40 part, quick lime 5-15 part, cement 5-10 part, clay 5-10 part, magnesia unslacked 5-10 part, halogen powder 5-10 part, rock sand
Brilliant 1-2 part, potassium chloride 0.5-1 part, water reducer 0.1-1 part, the strong agent 0.1-1 part of drought and water are appropriate.
Method the most according to claim 1, it is characterised in that in step 3, described rotating speed is 25-30r/min, and mixing time is 1-2h.
Method the most according to claim 1, it is characterised in that in step 4, described adds water in siccative, and water is 1:3-5 with the weight ratio of siccative.
Method the most according to claim 1, it is characterised in that in step 4, described rotating speed is 30-35r/min, and mixing time is 2-4h.
Method the most according to claim 1, it is characterised 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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| 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 |
| 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 |
| 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 |
| 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 |
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| CN100545124C (en) * | 2007-12-20 | 2009-09-30 | 河北农业大学 | A kind of building waste and industrial solid castoff recovery and utilization technology method |
| CN101508544A (en) * | 2009-02-25 | 2009-08-19 | 中国建筑材料科学研究总院 | Construction garbage concrete segment and method for producing the same |
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