CN105753354A - Microwave sintering method for preparing light ceramisite by using industrial waste residues - Google Patents
Microwave sintering method for preparing light ceramisite by using industrial waste residues Download PDFInfo
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- CN105753354A CN105753354A CN201610056889.4A CN201610056889A CN105753354A CN 105753354 A CN105753354 A CN 105753354A CN 201610056889 A CN201610056889 A CN 201610056889A CN 105753354 A CN105753354 A CN 105753354A
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- Prior art keywords
- sintering
- microwave
- sintering method
- microwave sintering
- crucible
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B18/00—Use of agglomerated or waste materials or refuse as fillers for mortars, concrete or artificial stone; Treatment of agglomerated or waste materials or refuse, specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B18/02—Agglomerated materials, e.g. artificial aggregates
- C04B18/023—Fired or melted materials
-
- 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 microwave sintering method for preparing light ceramisite by using industrial waste residues. The microwave sintering method takes waste incineration ash, sludge, chromium slag, clay, carbon black and the like as raw materials, and the light ceramisite is prepared by the microwave sintering method. The microwave sintering method can be used for preparing the light ceramisite by consuming the various industrial waste residues, and the preparation and production process is free from environmental pollution and is environment-friendly and energy-saving, so that energy consumption is effectively reduced, and production time is shortened; the prepared light ceramisite can be used as lightweight aggregate for building.
Description
Technical field
The present invention relates to the microwave sintering method of a kind of industrial residue light ceramic, belong to building material technical field.
Background technology
The raw material production haydites such as general incinerator ash generally adopt traditional normal temperature and pressure sintering method, there is sintering temperature height, sintering time is long, efficiency is low, pollutes the shortcomings such as bigger, simultaneously because temperature field is uneven, thermal stress is bigger, the porosity rate of sintering is big, and haydite growth is uneven, in conjunction with compactness difference.
Microwave Sintering Techniques is a kind of new material technology of preparing, its principle of heating is to utilize the dielectric loss of material in microwave electromagnetic field to make its entirety be warming up to the new fast heating technique of uniform temperature, comparing with conventional electric heating sintering, microwave heating has a series of advantages such as quick, efficient, energy-conserving and environment-protective.Although the advantage of Microwave Sintering Techniques is a lot, but there is also certain difficulty in practical application.
Summary of the invention
In order to solve, the ceramisite sintered time length of conventional garbage burning ash, energy resource consumption be big, the problem of sintered article lack of homogeneity, the present inventor relies on oneself long-term practical experience, develop a kind of method utilizing Microwave Sintering Techniques sintering ceramsite, not only retain these advantages of microwave technology, also use it for simultaneously and improve materials microstructure, improve the performance of material.
It is an object of the invention to provide the microwave sintering method of a kind of industrial residue light ceramic,
In order to realize object above, the present invention is achieved through the following technical solutions, including step:
1. take incinerator ash 10～60%, mud 10～60%, chromium slag 0～20%, clay 10～60% and white carbon black 5～20% by weight, mixing, levigate to less than 100 microns；
2. being placed in roller pelletizer by gained fine powder, atomization sprays into the water accounting for fine powder weight 14%～25%, adopts the spherical pellet that the method for the stirring group of rolling pelletize prepares into 5～20mm；
3. the pellet made is placed in drying baker, dries 12 hours at 105 DEG C.
4. dried pellet being put into the crucible in sintered heat insulating structure, the heating cavity that then sintered heat insulating structure is put into microwave agglomerating furnace is sintered；Sintering condition is: microwave frequency is 2.45GHZ, and microwave sintering temperature is 1000 DEG C～1200 DEG C, temperature retention time 5～30 minutes.
5. the material after sintering naturally cools to room temperature in microwave agglomerating furnace, obtains light ceramic.
Described sintered heat insulating structure is constituted for holding the crucible of pellet, block silicone carbide and heat-preservation cotton by being placed in sintering alms bowl；Crucible is positioned at the center of sintering alms bowl, and crucible periphery adopts block silicone carbide as auxiliary heating material, fills the hole of block silicone carbide and sintering alms bowl with heat-preservation cotton.
Light ceramic prepared by the present invention can be used for light-weight aggregate for building.
The advantage of the inventive method and feature:
1. the consumption of the effectively save energy of present invention energy, shortens the production time.The inventive method efficiency of heating surface is high, energy utilization rate is high, and the heating rate time fast, required insulation is short, sintering is rapid.
2. the present invention can effectively utilize various industrial residue, turns waste into wealth and is conducive to environmental conservation.,
3. environmental protection and energy saving of the present invention, production process does not have environmental pollution, prepares gained light ceramic and can be used for light-weight aggregate for building.
Accompanying drawing explanation
Fig. 1: the sintered heat insulating structural representation of the present invention.Wherein: 1. pellet；2. block silicone carbide；3. heat-preservation cotton；4. sintering alms bowl；5. hold the crucible of pellet.
Detailed description of the invention
For the ease of the understanding of the present invention, below in conjunction with implementing, the present invention is further illustrated, but is not intended to the present invention.
Embodiment 1:
Take incinerator ash 25%, mud 25%, chromium slag 5%, clay 35% and white carbon black 10% by weight, mixing；Put in ball mill levigate to less than 100 microns；Being then placed in roller pelletizer, atomization sprays into the water accounting for powder weight 14%～25%, with the method stirring the group's of rolling pelletize, material is prepared into the spherical pellet of 5～20mm；The pellet made is placed in drying baker, dries 12 hours at 105 DEG C.
Pellet after drying is put into the crucible of sintered heat insulating structure, as it is shown in figure 1, the heating cavity that then sintered heat insulating structure is put into microwave agglomerating furnace is sintered；The microwave frequency of microwave agglomerating furnace is 2.45GHZ, when temperature rises to 1100 DEG C, is incubated 10 minutes；After insulation terminates, naturally cool to until material and take out after room temperature.
The apparent density of obtained light ceramic is 600Kg/m3, cylindrical compress strength is higher than 2MPa, and water absorption rate is less than 5%.
Embodiment 2:
Take incinerator ash 25%, mud 40%, chromium slag 5%, clay 20% and white carbon black 10% by weight；Microwave sintering temperature is 1200 DEG C, temperature retention time 10 minutes；All the other, with embodiment 1, obtain light ceramic.
Claims (2)
1. the microwave sintering method of an industrial residue light ceramic, it is characterised in that include step:
1) incinerator ash 10～60%, mud 10～60%, chromium slag 0～20%, clay 10～60% and white carbon black 5～20% are taken by weight, mixing, levigate to less than 100 microns；
2) being placed in roller pelletizer by gained fine powder, atomization sprays into the water accounting for fine powder weight 14%～25%, adopts the spherical pellet that the method for the stirring group of rolling pelletize prepares into 5～20mm；
3) pellet made is placed in drying baker, dries 12 hours at 105 DEG C；
4) dried pellet being put into the crucible in sintered heat insulating structure, the heating cavity that then sintered heat insulating structure is put into microwave agglomerating furnace is sintered；Sintering condition is: microwave frequency is 2.45GHZ, and microwave sintering temperature is 1000 DEG C～1200 DEG C, temperature retention time 5～30 minutes；
5) material after sintering naturally cools to room temperature in microwave agglomerating furnace, obtains light ceramic.
2. the microwave sintering method of a kind of industrial residue light ceramic as claimed in claim 1, it is characterised in that described sintered heat insulating structure is to constitute for holding the crucible of pellet, block silicone carbide and heat-preservation cotton by being placed in sintering alms bowl；Crucible is positioned at the center of sintering alms bowl, and crucible periphery adopts block silicone carbide as auxiliary heating material, fills the hole of block silicone carbide and sintering alms bowl with heat-preservation cotton.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610056889.4A CN105753354B (en) | 2016-01-27 | 2016-01-27 | A kind of microwave sintering method of industrial residue light ceramic |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610056889.4A CN105753354B (en) | 2016-01-27 | 2016-01-27 | A kind of microwave sintering method of industrial residue light ceramic |
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| CN105753354A true CN105753354A (en) | 2016-07-13 |
| CN105753354B CN105753354B (en) | 2018-04-17 |
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| CN201610056889.4A Active CN105753354B (en) | 2016-01-27 | 2016-01-27 | A kind of microwave sintering method of industrial residue light ceramic |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106113246A (en) * | 2016-08-05 | 2016-11-16 | 天津城建大学 | The device of a kind of medical refuse burning flyash microwave continuous sintering ceramsite and operation method |
| CN107021775A (en) * | 2017-03-30 | 2017-08-08 | 东南大学 | A kind of method that utilization dregs prepares light ceramic |
| CN107309241A (en) * | 2017-05-26 | 2017-11-03 | 神华集团有限责任公司 | The recycling system of flyash |
| CN107353034A (en) * | 2017-07-27 | 2017-11-17 | 武汉理工大学 | A kind of method for preparing haydite using microwave sintering curing heavy metal chromium |
| CN108972865A (en) * | 2016-08-05 | 2018-12-11 | 天津城建大学 | A kind of operation method of rotary incineration of refuse flyash microwave sintering haydite |
| CN112939496A (en) * | 2021-02-03 | 2021-06-11 | 合肥工业大学 | Microwave sintering method of clay ceramsite |
| CN114349477A (en) * | 2022-01-12 | 2022-04-15 | 湖南国发控股有限公司 | Detoxification formula with high chromium slag amount and process for producing synergistic light aggregate |
| CN114751766A (en) * | 2021-11-24 | 2022-07-15 | 北京金隅红树林环保技术有限责任公司 | Light ceramsite fired by solid waste and method thereof |
| CN116396059A (en) * | 2023-04-12 | 2023-07-07 | 常熟理工学院 | Method for preparing ceramsite by using chromium-containing waste residues and printing and dyeing sludge and product thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103601526A (en) * | 2013-12-02 | 2014-02-26 | 天津城建大学 | Method for microwave firing of porous ceramsites by adopting medical waste incineration fly ash |
| CN105130391A (en) * | 2015-07-10 | 2015-12-09 | 武汉理工大学 | Method of preparing light-weight ceramic granules by sintering lake-bottom mud and municipal sludge |
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| CN103601526A (en) * | 2013-12-02 | 2014-02-26 | 天津城建大学 | Method for microwave firing of porous ceramsites by adopting medical waste incineration fly ash |
| CN105130391A (en) * | 2015-07-10 | 2015-12-09 | 武汉理工大学 | Method of preparing light-weight ceramic granules by sintering lake-bottom mud and municipal sludge |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108972865B (en) * | 2016-08-05 | 2019-12-20 | 天津城建大学 | Operation method of rotary waste incineration fly ash microwave sintered ceramsite |
| CN106113246A (en) * | 2016-08-05 | 2016-11-16 | 天津城建大学 | The device of a kind of medical refuse burning flyash microwave continuous sintering ceramsite and operation method |
| CN106113246B (en) * | 2016-08-05 | 2018-04-20 | 天津城建大学 | A kind of device and operation method of medical refuse burning flyash microwave continuous sintering ceramsite |
| CN108972865A (en) * | 2016-08-05 | 2018-12-11 | 天津城建大学 | A kind of operation method of rotary incineration of refuse flyash microwave sintering haydite |
| CN107021775A (en) * | 2017-03-30 | 2017-08-08 | 东南大学 | A kind of method that utilization dregs prepares light ceramic |
| CN107309241A (en) * | 2017-05-26 | 2017-11-03 | 神华集团有限责任公司 | The recycling system of flyash |
| CN107353034A (en) * | 2017-07-27 | 2017-11-17 | 武汉理工大学 | A kind of method for preparing haydite using microwave sintering curing heavy metal chromium |
| CN112939496A (en) * | 2021-02-03 | 2021-06-11 | 合肥工业大学 | Microwave sintering method of clay ceramsite |
| CN112939496B (en) * | 2021-02-03 | 2022-07-22 | 合肥工业大学 | Microwave sintering method of clay ceramsite |
| CN114751766A (en) * | 2021-11-24 | 2022-07-15 | 北京金隅红树林环保技术有限责任公司 | Light ceramsite fired by solid waste and method thereof |
| CN114349477A (en) * | 2022-01-12 | 2022-04-15 | 湖南国发控股有限公司 | Detoxification formula with high chromium slag amount and process for producing synergistic light aggregate |
| CN114349477B (en) * | 2022-01-12 | 2023-08-25 | 湖南国发控股有限公司 | High chromium slag detoxification formula and synergistic lightweight aggregate production process |
| CN116396059A (en) * | 2023-04-12 | 2023-07-07 | 常熟理工学院 | Method for preparing ceramsite by using chromium-containing waste residues and printing and dyeing sludge and product thereof |
| CN116396059B (en) * | 2023-04-12 | 2024-02-23 | 常熟理工学院 | Method for preparing ceramsite by using chromium-containing waste residues and printing and dyeing sludge and product thereof |
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| CN105753354B (en) | 2018-04-17 |
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