CN106186925A - The technique that a kind of incineration of refuse flyash prepares unburned ecological brick - Google Patents
The technique that a kind of incineration of refuse flyash prepares unburned ecological brick Download PDFInfo
- Publication number
- CN106186925A CN106186925A CN201610530818.3A CN201610530818A CN106186925A CN 106186925 A CN106186925 A CN 106186925A CN 201610530818 A CN201610530818 A CN 201610530818A CN 106186925 A CN106186925 A CN 106186925A
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- China
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- technique
- incineration
- ecological brick
- refuse flyash
- maintenance
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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
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The present invention relates to the technique that a kind of incineration of refuse flyash prepares unburned ecological brick.Take 10 40 weight portion incineration of refuse flyash to grind and sieve and be placed in container, add 5 15 parts by weight of sodium hydroxide, 20 40 weight parts waters, react after mixing；Add 50 90 weight portion Portland cements, stir to obtain batch mixing；Inject jolt ramming in ecological brick mould；Mould complete for slip casting is placed in form removal after maintenance in constant temperature and humidity climate box；Brick body after form removal is placed in water curing case and obtains ecological brick after maintenance.Operating cost of the present invention is low, disposes the cycle short, and secondary pollution is few, and the useless rate of profit is high, can effectively stablize the harmful toxic matter in incineration of refuse flyash simultaneously, and the toxicity leaching rate preparing product is less；The ecological brick of preparation need not be fired, and technique is simple, efficiency is high.
Description
Technical field
The present invention relates to the process for reclaiming of a kind of solid waste, be specifically related to a kind of incineration of refuse flyash and prepare unburned
The technique of ecological brick.
Background technology
Waste incineration can produce a certain amount of cinder from refuse incineration, wherein collects at heat recovery system, flue gas purification system
Material, i.e. incineration of refuse flyash, often account for being incinerated the 5%～10% of quantity of refuse, even 10%～15%.Flying dust is general
In canescence or Dark grey, particle diameter is less than 300 μm, and moisture content 5%～15%, the heat rate of cutting down according to the circumstance is 34%～51%, particle shape
Variation.Flying dust mainly has heavy metal pollution, dioxin contamination and dissolving salt to pollute to the pollution that environment brings.Master in flying dust
Wanting vertical distribution is Pb, Cd, Hg and Zn.Refuse Incineration Process burns owing to the reason such as waste component, ventilation causes
Burn not exclusively, fly ash granule is enriched with two English and furan (PCDD/DFs) the class organic pollution of a certain amount of severe toxicity, is flying
Ash transports, stores, processes and disposal is, ecological environment will be constituted a threat to by these pollutant, work the mischief human health.
Flying dust recycling is to solve flying dust to process the unique channel of a difficult problem.The recycling of flying dust must be from resource
Utilize and environmental effect two aspect is paid attention to.In current research, the recycling of incineration firing flying dust needs to consider
3 each factor once: (1) serviceability and cost.Good serviceability and low cost are recycling and marketization popularization
Essential condition.(2) flexibility (adaptability) of operation.This is mainly determined by the physicochemical properties of flying dust.(3) meet environmental standard and have
Long-time stability.
The main component of garbage flying ash belongs to Ca-SiO2-Al2O3-Fe2O3System, with conventional blast-furnace cinder, flyash
Etc. complementary gel rubber material closely, with cement mixing, hardware features, the simultaneously hydrated product of cement must be coagulated without producing
And alkaline environment can suppress the diafiltration of heavy metal, meet environmental requirement, therefore can with garbage flying ash as roadbed, dykes and dams,
Construction material and Colophonium fine aggregate.Tongji University's raw etc. research of obliging shows, incineration of refuse flyash can serve as cement raw material
Thus it is effectively reduced its cost of disposal, reduce its secondary pollution that environment is caused.
Summary of the invention
It is an object of the invention to improve conventional garbage flying ash and process the deficiency of technique, it is provided that a kind of waste incineration flies
The technique that ash prepares unburned ecological brick, it is achieved the disposal of resources to incineration of refuse flyash, prepares certain economic value
Product.
The technical scheme is that the technique that a kind of incineration of refuse flyash prepares unburned ecological brick, it is characterised in that:
(1) take 10-40 weight portion incineration of refuse flyash to grind and sieve and be placed in container, add 5-15 weight portion hydroxide
Sodium, 20-40 weight parts water, react after mixing under uniform temperature；
(2) reaction end continuously adds 50-90 weight portion Portland cement, is placed in blender and stirs to obtain batch mixing；
(3) jolt ramming during batch mixing injects ecological brick mould；
(4) mould (general illiteracy last layer preservative film) complete for slip casting is placed in the constant temperature perseverance of uniform temperature, certain humidity
Form removal after maintenance in wet climate box.
(5) ecological brick is obtained during the brick body after form removal is placed in the water curing case of uniform temperature after maintenance.
Uniform temperature described in preferred steps (1) is 20-50 DEG C, and the response time is 0.5-3 hour.Preferred steps (1)
Described in sieve for cross 100 mesh sieves.
Portland cement described in preferred steps (2) is P.O32.5 cement, P.O42.5 cement or P.O52.5 water
One in mud.
Stir speed (S.S.) in preferred steps (2) is 50-200 rev/min, and mixing time is 2-5min.
In preferred steps (3), jolt ramming frequency is 20-50 beat/min, and the jolt ramming time is 1-2 minute.
The temperature of the constant temperature and humidity climate box described in preferred steps (4) is 20-40 DEG C, and humidity is 80%-95%；Maintenance
Time be 12-48 hour.
The temperature of the water curing case described in preferred steps (5) is 20-60 DEG C；Curing time is 21-28d.
Beneficial effect:
1, the process that the incineration of refuse flyash method of resource of present invention offer is more conventional has following excellent with method of disposal
Point: operating cost is low, disposes the cycle short, and secondary pollution is few, and the useless rate of profit is high.
2, the ecological brick that the present invention provides need not be fired, and technique is simple, efficiency is high.
3, the ecological brick cost that the present invention prepares is relatively low, and different incineration of refuse flyash are had universality.Can have simultaneously
Effect stablizes the harmful toxic matter in incineration of refuse flyash, and the toxicity leaching rate preparing product is less.
Detailed description of the invention
Embodiment 1
(6) take 10 ground 100 mesh sieves of weight portion incineration of refuse flyash to be placed in container, add 5 parts by weight of sodium hydroxide,
20 weight parts waters, in 20 DEG C after mixing, react 3h.Continuously add 90 weight portion P.O32.5 Portland cements, be placed in stirring
With 50 revs/min in machine, stir 5min.Batch mixing injects the jolt ramming frequency jolt ramming 1 minute in ecological brick mould with 50 beats/min.
Complete for slip casting mould is covered last layer preservative film, is placed in 20 DEG C, maintenance 48 hours in the constant temperature and humidity climate box of humidity 95%
Rear form removal.Brick body after form removal is placed in the water curing case of 20 DEG C and obtains ecological brick after maintenance 28d.Prepare the comprcssive strength of ecological brick
For 34.4MPa.
The ecological brick of embodiment 1 preparation does Leaching of Heavy Metals experiment, and it the results are shown in Table 1.
Table 1 ecological brick leaching experiment result
Leaching experiment from table 1 filler: present invention incineration of refuse flyash is as raw material, and cement is as adjuvant, system
Becoming ecological brick, in its leachate, heavy metal concentration is relatively low, has higher safety.
Embodiment 2
(7) take 40 ground 100 mesh sieves of weight portion incineration of refuse flyash to be placed in container, add 15 weight portion hydroxides
Sodium, 40 weight parts waters, in 20 DEG C after mixing, react 3h.Continuously add 60 weight portion P.O42.5 Portland cements, be placed in
With 200 revs/min in blender, stir 2min.Batch mixing injects the jolt ramming frequency jolt ramming 2 in ecological brick mould with 20 beats/min
Minute.Complete for slip casting mould is covered last layer preservative film, is placed in 40 DEG C, maintenance 48 in the constant temperature and humidity climate box of humidity 80%
Form removal after hour.Brick body after form removal is placed in the water curing case of 60 DEG C and obtains ecological brick after maintenance 28d.Prepare the resistance to compression of ecological brick
Intensity is 47.6MPa.
The ecological brick of embodiment 2 preparation does Leaching of Heavy Metals experiment, and it the results are shown in Table 2.
Table 2 ecological brick leaching experiment result
Leaching experiment from table 2 filler: present invention incineration of refuse flyash is as raw material, and cement is as adjuvant, system
Becoming ecological brick, in its leachate, heavy metal concentration is relatively low, has higher safety.
Embodiment 3
(8) take 30 ground 100 mesh sieves of weight portion incineration of refuse flyash to be placed in container, add 5 parts by weight of sodium hydroxide,
30 weight parts waters, in 50 DEG C after mixing, react 0.5h.Continuously add 70 weight portion P.O52.5 Portland cements, be placed in and stir
Mix with 200 revs/min in machine, stir 5min.Batch mixing injects the jolt ramming frequency jolt ramming 1 point in ecological brick mould with 50 beats/min
Clock.Complete for slip casting mould is covered last layer preservative film, be placed in 30 DEG C, in the constant temperature and humidity climate box of humidity 90% maintenance 14 little
Form removal time after.Brick body after form removal is placed in the water curing case of 50 DEG C and obtains ecological brick after maintenance 21d.Prepare the pressure resistance of ecological brick
Degree is 56.4MPa.
The ecological brick of embodiment 3 preparation does Leaching of Heavy Metals experiment, and it the results are shown in Table 3.
Table 3 ecological brick leaching experiment result
Leaching experiment from table 3 filler: present invention incineration of refuse flyash is as raw material, and cement is as adjuvant, system
Becoming ecological brick, in its leachate, heavy metal concentration is relatively low, has higher safety.
Claims (8)
1. the technique that an incineration of refuse flyash prepares unburned ecological brick, it is characterised in that:
(1) take 10-40 weight portion incineration of refuse flyash to grind and sieve and be placed in container, add 5-15 parts by weight of sodium hydroxide, 20-
40 weight parts waters, react after mixing under uniform temperature；
(2) reaction end continuously adds 50-90 weight portion Portland cement, is placed in blender and stirs to obtain batch mixing；
(3) jolt ramming during batch mixing injects ecological brick mould；
(4) mould complete for slip casting is placed in form removal after maintenance in constant temperature and humidity climate box.
(5) ecological brick is obtained during the brick body after form removal is placed in water curing case after maintenance.
Technique the most according to claim 1, it is characterised in that the uniform temperature described in step (1) is 20-50 DEG C, reaction
Time is 0.5-3 hour.
Technique the most according to claim 1, it is characterised in that sieving as crossing 100 mesh sieves described in step (1).
Technique the most according to claim 1, it is characterised in that the Portland cement described in step (2) is
One in P.O32.5 cement, P.O42.5 cement or P.O52.5 cement.
Technique the most according to claim 1, it is characterised in that the stir speed (S.S.) in step (2) is 50-200 rev/min, stirs
The time of mixing is 2-5min.
Technique the most according to claim 1, it is characterised in that in step (3), jolt ramming frequency is 20-50 beat/min, jolt ramming
Time is 1-2 minute.
Technique the most according to claim 1, it is characterised in that the temperature of the constant temperature and humidity climate box described in step (4) is
20-40 DEG C, humidity is 80%-95%；The time of maintenance is 12-48 hour.
Technique the most according to claim 1, it is characterised in that the temperature of the water curing case described in step (5) is 20-60
℃；Curing time is 21-28d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610530818.3A CN106186925A (en) | 2016-07-06 | 2016-07-06 | The technique that a kind of incineration of refuse flyash prepares unburned ecological brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610530818.3A CN106186925A (en) | 2016-07-06 | 2016-07-06 | The technique that a kind of incineration of refuse flyash prepares unburned ecological brick |
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| Publication Number | Publication Date |
|---|---|
| CN106186925A true CN106186925A (en) | 2016-12-07 |
Family
ID=57472364
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610530818.3A Pending CN106186925A (en) | 2016-07-06 | 2016-07-06 | The technique that a kind of incineration of refuse flyash prepares unburned ecological brick |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986610A (en) * | 2017-03-08 | 2017-07-28 | 南京工业大学 | A kind of preparation technology of acidic group functional material |
| CN107399951A (en) * | 2017-08-28 | 2017-11-28 | 华南理工大学云浮研究院 | It is a kind of to utilize the non-burning brick and preparation method thereof of flying dust |
| CN111512832A (en) * | 2020-04-29 | 2020-08-11 | 内蒙古海罗生态环境股份有限公司 | Ecological stone for landscaping and manufacturing process thereof |
| CN113213789A (en) * | 2021-05-24 | 2021-08-06 | 燕山大学 | Paving brick prepared based on household garbage incineration fly ash and preparation method thereof |
| CN113264715A (en) * | 2021-05-24 | 2021-08-17 | 燕山大学 | Heavy metal curing baking-free brick based on household garbage incineration fly ash and preparation method thereof |
| CN113563016A (en) * | 2021-08-12 | 2021-10-29 | 李全胜 | Method for preparing environment-friendly bricks by utilizing fly ash of garbage power plant |
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|---|---|---|---|---|
| CN101357840A (en) * | 2007-08-03 | 2009-02-04 | 天津壹生环保科技有限公司 | Baking-free type refuse burning flyash haydite and manufacturing method thereof |
| CN102060493A (en) * | 2010-11-10 | 2011-05-18 | 华南理工大学 | Method for preparing unburned slag wall bricks by utilizing household garbage burned slag |
| CN105152609A (en) * | 2015-07-13 | 2015-12-16 | 四川方大新型建材科技开发有限责任公司 | Building brick produced by using fly ash or residues obtained after burning domestic wastes, and production method thereof |
-
2016
- 2016-07-06 CN CN201610530818.3A patent/CN106186925A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101357840A (en) * | 2007-08-03 | 2009-02-04 | 天津壹生环保科技有限公司 | Baking-free type refuse burning flyash haydite and manufacturing method thereof |
| CN102060493A (en) * | 2010-11-10 | 2011-05-18 | 华南理工大学 | Method for preparing unburned slag wall bricks by utilizing household garbage burned slag |
| CN105152609A (en) * | 2015-07-13 | 2015-12-16 | 四川方大新型建材科技开发有限责任公司 | Building brick produced by using fly ash or residues obtained after burning domestic wastes, and production method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106986610A (en) * | 2017-03-08 | 2017-07-28 | 南京工业大学 | A kind of preparation technology of acidic group functional material |
| CN106986610B (en) * | 2017-03-08 | 2019-07-02 | 南京工业大学 | A kind of preparation process of acidic group functional material |
| CN107399951A (en) * | 2017-08-28 | 2017-11-28 | 华南理工大学云浮研究院 | It is a kind of to utilize the non-burning brick and preparation method thereof of flying dust |
| CN111512832A (en) * | 2020-04-29 | 2020-08-11 | 内蒙古海罗生态环境股份有限公司 | Ecological stone for landscaping and manufacturing process thereof |
| CN113213789A (en) * | 2021-05-24 | 2021-08-06 | 燕山大学 | Paving brick prepared based on household garbage incineration fly ash and preparation method thereof |
| CN113264715A (en) * | 2021-05-24 | 2021-08-17 | 燕山大学 | Heavy metal curing baking-free brick based on household garbage incineration fly ash and preparation method thereof |
| CN113264715B (en) * | 2021-05-24 | 2022-07-29 | 燕山大学 | Heavy metal curing baking-free brick based on household garbage incineration fly ash and preparation method thereof |
| CN113563016A (en) * | 2021-08-12 | 2021-10-29 | 李全胜 | Method for preparing environment-friendly bricks by utilizing fly ash of garbage power plant |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161207 |