CN101386504A - Slurry slag refining technique and mixed products with cement and thereof - Google Patents
Slurry slag refining technique and mixed products with cement and thereof Download PDFInfo
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- CN101386504A CN101386504A CNA2008102168482A CN200810216848A CN101386504A CN 101386504 A CN101386504 A CN 101386504A CN A2008102168482 A CNA2008102168482 A CN A2008102168482A CN 200810216848 A CN200810216848 A CN 200810216848A CN 101386504 A CN101386504 A CN 101386504A
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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 relates to a slag refining process, which comprises the following steps: the slag is collected; necessary building materials and renewable materials are picked up from the slag; the building materials are picked up in a closed boiler by combustion, and the combustion gas is used for power generation; the combustion products are crushed to form particles or powder; and, the particles or powder formed by crushing are mixed with cement according to a preset blending ratio, and the mixture is made into be necessary products. The invention also provides a mixing product of cement and the slag refined by the process. The slag refining process has the advantages of fully utilizing the waste slag, resolving the problem of the slag ever increasing during the municipal construction, changing the waste slag into useful products, and obtaining the environment friendly type cement product by the reutilization; moreover, because the combustion gas is used for power generation in the slag refining process, the combustion gas is not emitted in the atmosphere, thereby fully utilizing the new energy generated by the slag refining process, saving quantities of state-owned lands, saving a great amount of social management expenditure for governments, providing the higher potential return of investment for enterprises, and greatly pushing the environmental protection construction and the sustainable development of cities forward.
Description
Technical field
The present invention relates in particular to a kind of slurry slag refining technique and and mixed products with cement thereof about the waste recovery refining technique.
Background technology
In recent years, along with good and fast development of economic construction, the urbanization process paces are accelerated day by day, and in the renewal and reconstruction of the old city town process of urban facilities, and people's living standard promotes day by day, and domestic refuse is more and more many, causes surplus body refuse soil also day by day to increase.These surplus body refuse soil normally carry out landfill disposal with refuse landfill, and with the minimizing environmental pollution, but landfill disposal is difficult to the satisfied surplus body refuse soil demand that increases rapidly at present.In addition, landfill disposal consumes a large amount of soils and refuse collection expense and the spending of landfill funds, and can block the soil organisms chain, and environment is caused serious pollution, brings very big harm to existent environment of people.In fact, surplus body refuse penus is rich in multiple building material in renewable resources in it, can be utilized again.Therefore, environmental protection and landfill funds spending of minimizing government and Sustainable development for the city need fully utilize surplus body refuse soil.
At present, what have is directly long-pending with surplus body refuse mound, carries out burning disposal again, carries out landfill after the burning again, can suitably reduce the occupation of land volume of surplus body refuse soil.Yet burning can cause serious atmospheric pollution and waste government to drop into, and does not meet the environmental requirement of people's pay attention to day by day and the financial expense of government.
Summary of the invention
In view of this, be necessary to provide a kind of expense and good again slurry slag refining technique of environment that can make full use of the surplus body refuse soil of depleted, saving state-owned land resource and government.
And provide surplus body refuse soil and mixed products with cement after the described technology of a kind of process is refined.
A kind of slurry slag refining technique, it may further comprise the steps:
Collect surplus body refuse soil;
From surplus body refuse soil, sort out needed building material and renewable raw materials;
The building material that sorts out in airtight boiler internal combustion, and utilize the combustion gases generating;
Pulverize products of combustion, form particle or powder;
Mix according to preset blending ratio with cement pulverizing the powder that forms, then mixture is made required environment-friendly type water mud product.
And, surplus body refuse soil and mixed products with cement after a kind of the refinement, it comprises the burning of surplus body refuse soil after pulverize powder and the cement that forms, described powder mixes according to preset blending ratio with cement.
Compared with prior art, described slurry slag refining technique makes full use of the surplus body refuse soil of depleted, solves surplus body refuse soil increasing in the urban construction process and handles problems, and it is turned waste into wealth, and recycles it and makes cement products or other goods.And this refining technique utilizes combustion gases generatings, combustion gases can be discharged in the atmosphere, can make full use of it and produce new forms of energy, again can polluted air, meet the environmental protection demand; In addition,, produce the new energy, thereby have higher rate of return on investment, greatly promote urban environmental protection construction and sustainable development because it can generate electricity.In addition, the goods that this surplus body refuse soil extracts are mainly derived from the surplus body refuse soil of depleted, can save the energy and starting material, are the equal of to have reduced production cost, and are equivalent to disinfection in the combustion processes, can be made into environmentally friendly goods.
Description of drawings
Fig. 1 is the slurry slag refining technique schema that the embodiment of the invention provides.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
See also Fig. 1, be the slurry slag refining technique that the embodiment of the invention provides, it may further comprise the steps:
S01: collect surplus body refuse soil;
S02: from surplus body refuse soil, sort out needed building material and renewable raw materials;
S03: the building material that sorts out in airtight boiler internal combustion, and utilize the combustion gases generating;
S04: pulverize products of combustion, form particle or powder;
S05: will pulverize the powder that forms and mix according to preset blending ratio, and then mixture be made required environment-friendly type water mud product with cement.
Surplus body refuse soil of the present invention mainly comprises inertia waste, non-inertia waste, building residue soil, domestic refuse, timber, discarded furniture, reinforcing bar, metallic substance, Bottle ﹠ Can, plastics etc.That the inertia waste comprises is newly-built, renovating and enlarging, fit up and remove the stone that produced in all kinds of buildingss, the structures process, brick and tile, concrete blocks, sandstone etc., the waste that non-inertia waste mainly comprises is newly-built, renovating and enlarging, fit up and remove the scrap metal that produced in all kinds of buildingss, the structures process, glass fragment, plastic cement, wooden unit, bamboo chip, paper, pitch etc. pollute easily.
By above-mentioned description about surplus body refuse soil as can be known, it is collected mainly by from newly-built, renovating and enlarging, the finishing of various places building with remove the place and get, usually be transported to specified refining technique factory site from these places, for example, earlier by navvy with these surplus body refuse soil transport trolley of packing into, transport it into by transport trolley then and specify the place to refine, this in fact also is the removal process of a waste material.
In step S02, can adopt mechanical system that surplus body refuse soil is spread out earlier, for example scoop up surplus body refuse soil with navvy, more surplus body refuse Tu Pu is scattered, then by manually choosing operation.Usually, some material is reinforcing bar, metallic substance, glasswork, Bottle ﹠ Can, plastics etc. for example, can directly they be sorted out, and are transported to the recovery factory of respective material.For example, reinforcing bar can be sorted out and be transported to steelworks; Metallic substance can be sorted out and be transported to Metal Processing Factory; Glasswork, Bottle ﹠ Can be sorted out and be transported to glass processing factory; Plastics can be sorted out and be transported to plastic working factory etc.Certainly, also have other directly materials of regeneration, the material that is not limited to enumerate herein.Can sort out also simultaneously that some are unfavorable to treating processess such as subsequent combustion and pulverizing, or be unfavorable for making at last the material of goods, for example, set off an explosion easily, toxicity is strong as medicine or have the material of radiativity, also earlier with its selection rejecting.Keep the material that can be used for building at last, for example non-inertia waste, building residue soil, bamboo chip, paper, pitch, domestic refuse, timber or discarded furniture etc.After through selection, needed building material is stowed with dozer again, and can lay in for future use.
Among the step S03, the building material that sorts out in airtight boiler internal combustion utilizes the combustion gases generating more earlier.In the present embodiment, adopt the smoldering mode that the building material that sorts out is burnt, boiler can adopt heat power plant's used high temperature smoldering boiler usually, and furnace temperature is about 800 ℃-1800 ℃, and garbage treatment quantity is about 20-120 ton/sky.Boiler mainly is made up of boiler body and utility appliance two parts.Wherein, boiler body is the main body of boiler plant, comprises combustion chamber, burner hearth, vapor superheater and furnace wall framework etc.Utility appliance comprises feedwater equipment, as equipment such as service pump and water treatments for the normal operation of keeping boiler is provided with; Ventilation installation mainly are gas blower, induced draft fan and wind and smoke road etc.Then, boiler can be connected to a steam turbine and generator generates electricity.Can utilize combustion gases cogeneration thus, combustion gases need not be discharged in the atmosphere, can make full use of it and produce new forms of energy, again can polluted air, meet the environmental protection demand.
Combustion processes by this step, surplus body refuse soil after the selection can fully be heated mixing, various material mixing are even, also can play the disinfectant effect simultaneously, because these surplus body refuse mounts are drawn together not only dirty but also smelly materials such as domestic refuse, can carry out purifying treatment to it by burning, make the final goods that obtain become environmentally friendly product.
Pulverizing among the step S04 adopts pulverizer to handle usually, because after burning was cooled off usually, some material lumpd easily, therefore need pulverize.Products of combustion is ground into powder, and the powder of pulverizing is divided into granulated powders and fines, and wherein, the particle diameter of granulated powders is about 2-4 centimetre, and the particle diameter of fines is the 0.2-0.6 millimeter.Granulated powders can be that thickness is uneven, each granulated powders size distribution broad of coming out of pulverizing.These two kinds of powder can adopt to sieve and screen, and can sieve by secondary, to filter out required granulated powders and fines.Granulated powders directly and cement mixing be used to make cement products, as fragment of brick, blow-off pipe, underground cables pipe, road brick, paving stone or kerbstone etc., granulated powders is used to replace sand herein.Fines and cement and river sand are mixed and made into batch obstructing material of interior or outer body of wall, and fines replaces the part river sand herein, so its particle diameter roughly is equal to river sand, are preferably the 0.35-0.5 millimeter.
Pulverizer can be used the crusher of the PF-1315 model of equipment company limited of Henan Innovative Construction And Bu, this crusher power is bigger, throughput reach the 160-250 ton/hour, thereby can rapidly increasing surplus body refuse soil be recovered utilization as early as possible, in time vacate the state-owned land resource, make the state-owned land resource of vacating obtain to utilize once more, and can provide a large amount of building materials for urban construction.
After the pulverizing, powder is mixed according to preset blending ratio with cement, to make required goods.At first for granulated powders, the weight proportion of itself and cement is 3-6: 1, consider cost and granulated powders and cementitious molding effect, and both are preferably 5: 1 by weight proportion.If both weight proportions were greater than 6: 1, granulated powders is disperseed easily in the finished product of then suppressing later, the sand return phenomenon can occur.If both weight proportions were less than 3: 1, then cement content is higher relatively, the corresponding technology manufacturing cost that improved.Sometimes, can look crushing effect, it mainly is the size of seeing the granulated powders after the pulverizing, when mixed cement, mix simultaneously with sand, rubble etc., with enhanced granule sprills and cementitious performance, if the granulated powders after pulverizing is less, then mix rubble, otherwise then mix with fine sand with larger particles.Above-mentioned mixing process can be carried out in a stirrer, for example selects Shenzhen to respect the makers' JS-500 type of group machine die stirrer, and they are mixed.In the whipping process, add a certain amount of water or tackiness agent, make granulated powders and cement fused mutually.
Then, with formation type in the mixture input press-forming machine of granulated powders and cement.For example, adopt Shenzhen to respect the makers' JQ-QT3-10-20 type of group machine die fully-automatic building block forming machine and make fragment of brick, be used to pave the way, body of wall etc.; Perhaps adopt Shenzhen to respect the makers' JQ-200-2000 type of group machine die cement pipe making machine and make cement pipe and fragment of brick, road brick, paving stone or kerbstones etc. such as blow-off pipe, underground hydraulic pipe, underground cables pipe.At different product structures or shape, can select different shapers and mould for use, for example can form hollow brick, azulejo etc.
In addition, after the mixture compression moulding of granulated powders and cement, further its finished product is added water and drying treatment.At first it is added water, make the presswork suction, carry out drying by the method for Exposure to Sunlight or natural air drying then, about about 20 days of treatment time, its structure is toughened up firmly, form durable cement products.Therefore this cement products, has less deadweight than common brick light weight when being used to build, can build higher buildings.
For fines, it mixes with cement and river sand, and wherein the weight proportion of cement, fines and river sand is approximately 1: 1: 2.0-2.5.Three's mix products is as batch obstructing material of interior or outer body of wall, and the thickness of batch barricade body is generally 0.7-0.9 centimetre.Since river sand to dig the fortune cost higher, and be unfavorable for the Ecodevelopment in river, therefore replace most of river sand by fines, can greatly save cost, surplus body refuse soil is turned waste into wealth.
Refining technique in the present embodiment makes full use of the surplus body refuse soil of depleted, solves surplus body refuse soil increasing in the urban construction process and handles problems, and it is turned waste into wealth, and can recycle it and make cement products or other goods.And this refining technique utilizes combustion gases generatings, combustion gases can be discharged in the atmosphere, can make full use of it and produce new forms of energy, can save a large amount of soils again; Neither can polluted air, meet the environmental protection demand again; Can be the repayment of the potential input of enterprise again for government saves a large amount of social management funds; Simultaneously,, produce the new energy, replenish electric power resource, thereby have considerable rate of return on investment, greatly promote urban environmental protection construction and sustainable development because it can generate electricity.In addition, the goods that this surplus body refuse soil extracts are mainly derived from the surplus body refuse soil of depleted, can save the energy and starting material, are the equal of to have reduced production cost, and are equivalent to disinfection in the combustion processes, can be made into environmentally friendly goods.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1, a kind of slurry slag refining technique, it may further comprise the steps:
Collect surplus body refuse soil;
From surplus body refuse soil, sort out needed building material and renewable raw materials;
The building material that sorts out in airtight boiler internal combustion, and utilize the combustion gases generating;
Pulverize products of combustion, form particle or powder;
Mix according to preset blending ratio with cement pulverizing the particle or the powder that form, then mixture is made required environment-friendly type water mud product.
2, slurry slag refining technique as claimed in claim 1 is characterized in that, described separation step comprises: adopt mechanical system that surplus body refuse soil is spread out, then by the material of artificial sort out reproducible utilization, keep needed building material.
3, slurry slag refining technique as claimed in claim 2 is characterized in that, described mechanical system is to adopt navvy to scoop up surplus body refuse soil, more surplus body refuse soil is spread out.
4, slurry slag refining technique as claimed in claim 2 is characterized in that, the material of the reproducible utilization of described sort out comprises reinforcing bar, metallic substance, glasswork, Bottle ﹠ Can and plastics.
5, slurry slag refining technique as claimed in claim 2 is characterized in that, the building material of described reservation comprises inertia waste, building residue soil, bamboo chip, paper, pitch, domestic refuse, timber or discarded furniture.
6, slurry slag refining technique as claimed in claim 1, it is characterized in that, after products of combustion is pulverized, further crushed products is sieved, isolate granulated powders and fines, with granulated powders and cement mixing and suppress the shape cement products, fines, cement and river sand are mixed batch obstructing material that forms body of wall then.
7, a kind of surplus body refuse soil refines back and mixed products with cement, and it comprises the burning of surplus body refuse soil after pulverize powder and the cement that forms, and described powder mixes according to preset blending ratio with cement.
8, surplus body refuse soil as claimed in claim 7 refines back and mixed products with cement, it is characterized in that, described goods are batch obstructing material of body of wall, described powder comprises fines, described batch of obstructing material comprises fines, cement and river sand, and the weight proportion of the cement in the described batch of obstructing material, fines, river sand is 1: 1: 2.0-2.5.
9, surplus body refuse soil as claimed in claim 7 refines back and mixed products with cement, it is characterized in that described powder particle sprills, described goods are the mixed product of granulated powders and cement, and the weight proportion of granulated powders and cement is 3-6: 1.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008102168482A CN101386504A (en) | 2008-10-17 | 2008-10-17 | Slurry slag refining technique and mixed products with cement and thereof |
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| CNA2008102168482A CN101386504A (en) | 2008-10-17 | 2008-10-17 | Slurry slag refining technique and mixed products with cement and thereof |
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| CN101386504A true CN101386504A (en) | 2009-03-18 |
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| CNA2008102168482A Pending CN101386504A (en) | 2008-10-17 | 2008-10-17 | Slurry slag refining technique and mixed products with cement and thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111875268A (en) * | 2020-08-05 | 2020-11-03 | 深圳大学 | Calcined clay, process for producing the same, and limestone calcined clay cement |
| CN113883527A (en) * | 2021-10-18 | 2022-01-04 | 西安西热锅炉环保工程有限公司 | Construction waste disposal and resource utilization system and method based on pulverized coal fired boiler |
-
2008
- 2008-10-17 CN CNA2008102168482A patent/CN101386504A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111875268A (en) * | 2020-08-05 | 2020-11-03 | 深圳大学 | Calcined clay, process for producing the same, and limestone calcined clay cement |
| CN113883527A (en) * | 2021-10-18 | 2022-01-04 | 西安西热锅炉环保工程有限公司 | Construction waste disposal and resource utilization system and method based on pulverized coal fired boiler |
| CN113883527B (en) * | 2021-10-18 | 2022-08-23 | 西安西热锅炉环保工程有限公司 | Construction waste disposal and resource utilization system and method based on pulverized coal fired boiler |
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Application publication date: 20090318 |