CN104844083B - A kind of energy-saving environment protection brick and preparation method thereof - Google Patents
A kind of energy-saving environment protection brick and preparation method thereof Download PDFInfo
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- CN104844083B CN104844083B CN201510182938.4A CN201510182938A CN104844083B CN 104844083 B CN104844083 B CN 104844083B CN 201510182938 A CN201510182938 A CN 201510182938A CN 104844083 B CN104844083 B CN 104844083B
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- flyash
- granularity
- coal ash
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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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- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of energy-saving environment protection brick and preparation method thereof, belong to light wall material technical field.It is made up of the raw material of following weight portion：80 86 parts of flyash after process, 10 15 parts of cement, 5 10 parts of haydite and 13 20 parts of leachate of ageing；Flyash after process is that wet-discharged coal ash is aged, pulverizes and obtain after sorting；Ageing process is to be aged wet-discharged coal ash 18 23 days, and collection leaches water and obtains being aged leachate；Crushing process is used for for the wet-discharged coal ash after ripening being crushed to below granularity 10mm；Assorting room is used for sub-electing the bulky grain flyash that granularity is 4 10mm, granularity is the microparticle flyash that the little particle flyash of 1 4mm and granularity are less than 1mm；Flyash after process is by bulky grain flyash, little particle flyash and microparticle flyash in mass ratio 3.7 4.2:2.6‑3.2:3 compositions.
Description
Technical field
The invention belongs to light wall material technical field, particularly to a kind of energy-saving environment protection brick and preparation method thereof, especially
It is related to a kind of low-density, inexpensive and high-quality fragment of brick and preparation method thereof, and the raw material more than 80% of this fragment of brick is all industry
Waste residue.
Background technology
As long as producing at present self-insulating concrete composite block admixture is done with 40% about waste coal ash, with cement, Calx,
Gypsum Fibrosum, binding agent do Binder Materials；Blinding, sand, haydite do aggregate, mix and stir liquid with subsoil water or tap water, with organic
Or inorganic industrial chemicals make exciting agent and make, all in more than 800kg/m, the program disposes a certain amount of Industry Waste to finished product density
Gurry（About 40%）, expend substantial amounts of industrial product and part non-renewable resources simultaneously, just have higher cost.
Content of the invention
It is an object of the invention to overcome the shortcomings of above-mentioned prior art and provide a kind of adopt more than 80% garbage,
Economize on resources, free from environmental pollution, resistance to compression, frost resistance are strong, the energy-saving environment protection brick of lightweight and its production technology.Described scheme is as follows：
On the one hand, embodiments provide a kind of energy-saving environment protection brick, be made up of the raw material of following weight portion：After process
Flyash 80-86 part, cement 10-15 part, haydite 5-10 part and ageing leachate 13-20 part.
Wherein, the flyash after process is that wet-discharged coal ash is aged, pulverizes and obtain after sorting, specifically, wet row's powder
Coal ash contains 30% moisture, can leach substantial amounts of moisture in ageing process.
Wherein, ageing process is to be aged wet-discharged coal ash 18-23 days（Preferably 20 days）, collect leach water obtain ageing drip
Go out liquid, wherein, the pH value of ageing leachate itself is more than or equal to 7, need not allocate and can use, not only decrease discharge of wastewater,
The allocation process of also minimizing.
Wherein, crushing process is used for for the wet-discharged coal ash after ripening being crushed to below granularity 10mm, specifically permissible
Realized using multi-stage crushing.
Wherein, assorting room is used for sub-electing the bulky grain flyash for 4-10mm for the granularity, the little particle for 1-4mm for the granularity
The flyash and granularity microparticle flyash less than 1mm, specifically can be realized using multi-stage rotary screen.
Wherein, the flyash after process is by bulky grain flyash, little particle flyash and microparticle flyash in mass ratio
3.7-4.2:2.6-3.2:3 compositions, bulky grain flyash, little particle flyash, microparticle flyash, cement, haydite and ageing
Leachate is heated to proportioning machine mix and blend together.
Wherein, the cement in the embodiment of the present invention is the cement of 425# and above label；
Wherein, the granularity of the haydite in the embodiment of the present invention is less than 10mm.
Further, the cement in the embodiment of the present invention is 425# cement.
Further, the haydite in the embodiment of the present invention is selected from haydites of book structure or flyash haydite etc..
Preferably, the flyash after the process in the embodiment of the present invention is by bulky grain flyash, little particle flyash and micro-
Granule flyash in mass ratio 4:3:3 compositions.
On the other hand, present invention also offers the preparation method of this energy-saving environment protection brick, comprise the following steps：
(1) it is aged：By wet-discharged coal ash ripening 18-23 days, collect leachate and obtain being aged leachate；Specifically permissible
Naturally it is deposited between ageing using by wet-discharged coal ash, be provided with pond between ageing and be used for collecting leachate.Preferably, ripening
20 days about.
(2) sort：Flyash after step (1) is aged is crushed to below granularity 10mm, then sorts, and sub-electing granularity is
The microparticle flyash less than 1mm for the bulky grain flyash of 4-10mm, the granularity little particle flyash and granularity for 1-4mm.
(3) raw material mixing：By haydite, cement（Preferably employ 425# cement）, ageing leachate, bulky grain flyash, little
Granule flyash and microparticle flyash press proportioning mix and blend, and mixing time 4-6 minute obtains compound.Wherein, raw material is joined
Than（Quality）For：Flyash 80-86 part after process, cement 10-15 part, haydite 5-10 part and ageing leachate 13-20 part, place
Flyash after reason is bulky grain flyash, little particle flyash and the microparticle flyash being obtained by step (3) sorting by matter
Amount compares 3.7-4.2:2.6-3.2:3 be added in electronic proportioning machine with haydite, cement and ageing leachate mix and blend.
(4) brickmaking：The compound that step (3) is obtained sends into brickmaking machine vibration moulding brickmaking, obtains standard brick.
(5) maintenance：Fragment of brick after step (4) molding is sent into steam curing system（Normal pressure）Carry out steam curing, first will
Steam curing system is maintained at 15-35 DEG C, and fragment of brick stands 1-5 hour, then 28-33 DEG C of intensification per hour（Preferably 30 DEG C/h）
To 85-95 DEG C（Preferably 90 DEG C）, finally control 14-18 hour（Preferably 16 hours）Finished product is obtained after interior cooling.
Further, in step (5), in the winter time, first steam curing system is maintained at 15-25 DEG C, fragment of brick stands 3-5
Hour；In spring, summer and autumn, first steam curing system is maintained at 25-33 DEG C, fragment of brick stands 1-2.5 hour.
Preferably, in step (5), in the winter time, first steam curing system is maintained at 20 DEG C, fragment of brick stands 4 hours；?
Spring, summer and autumn, first steam curing system is maintained at 28 DEG C, fragment of brick stands 2 hours.
This patent has the advantage that：1st, adopt more than 80% industrial residue, stirring liquid collects water for wet-discharged coal ash, right
Save not regenerated resources, energy-conservation fresh water, environmental protection, control useless, sharp production application that is useless, promoting new material have highly important
Meaning.2nd, whole production industry is smooth, efficient, achieve line production and uninterrupted production, not only increases benefit, reduces
Labor intensity and energy resource consumption, every procedure has promotion and guaranteeing role to product inherent quality, so that produce industry reaching
To scientific, rationalize, after testing its resistance to compression high frost resistance strong etc..
Specific embodiment
For making the object, technical solutions and advantages of the present invention clearer, below embodiment of the present invention is made further
Ground describes in detail.
Embodiment 1
Embodiment 1 provides a kind of preparation method of energy-saving environment protection brick, and the method comprises the following steps：
(1) it is aged：Ripening 20 days, collection obtaining of the leachate drip between ageing by wet-discharged coal ash stock pile stacked
Go out liquid standby.
(2) sort：Flyash after step (1) is aged is crushed to below granularity 10mm using Multi-stage crusher, then leads to
Cross rotary screen sorting, sub-elect the bulky grain flyash for 4-10mm for the granularity, the granularity little particle flyash for 1-4mm and granularity
Microparticle flyash less than 1mm.
(3) raw material mixing：By haydite 80kg, Po42.5R cement（425# cement）120kg, ageing leachate 150kg, big
Granule flyash 320kg, little particle flyash 250kg and microparticle flyash 250kg send into mixed in electronic proportioning machine in proportion
Close stirring, can not stir dirt, mixing time obtains compound in 5 minutes.
(4) brickmaking：The compound that step (3) is obtained sends into brickmaking machine vibration moulding brickmaking, obtains standard fragment of brick.
(5) maintenance：Fragment of brick after step (4) molding is sent into steam curing system and carries out steam curing, first steam is supported
Protecting system is maintained at 28 DEG C, and fragment of brick stands 2 hours, then heats up 30 DEG C to 90 DEG C per hour, finally controls after lowering the temperature in 16 hours
Obtain finished product.
Referring to table 1, it is below the contrast table specifying JG/T407-2013 with industry standard brick（Inspection Unit：Hubei Province's building materials
Product quality supervision and inspection station, inspection numbering：Committee 2013-0791）：
Table 1
| Sequence number | Detection project | Measurement unit | Standard requires | Measured result | Individual event is evaluated |
| 1 | Presentation quality bends | mm | ≤3 | ≤2 | Qualified |
| Losing fangle | mm | In three direction projection dimensional maximums≤30 of length, width and height | In three direction projection dimensional maximums≤22 of length, width and height | Qualified | |
| Crack | mm | Accumulation size≤30 of fracture extension projection | Accumulation size≤23 of fracture extension projection | Qualified | |
| 2 | Density | kg/m3 | 610-700 | 674 | Qualified |
| 3 | Comprcssive strength meansigma methodss | Mpa | ≥3.5 | 3.69 | Qualified |
| Monolithic is minimum | Mpa | ≥2.8 | 3.29 | Qualified | |
| 4 | Equivalent heat conductivity | W/(m*k) | 0.16-0.20（EC25） | 0.195 | Qualified |
| 5 | Equivalent leads storage coefficient | W/(m2*k) | 2.00-2.99（ES3） | 2.83 | Qualified |
| 6 | Quality water absorption rate | % | ≤18 | 15.1 | Qualified |
| 7 | Contract with dry rate | % | ≤0.065 | 0.057 | Qualified |
| 8 | Anti-permeability performance | mm | ≤10 | 7 | Qualified |
| 9 | Carbonation coefficient | ≥0.85 | 0.88 | Qualified | |
| 10 | Coefficient of softing | ≥0.86 | 1.02 | Qualified | |
| 11 | Frost resistance mass loss | % | ≤5 | 2.3 | Qualified |
| Frost resistance loss of strength | % | ≤25 | 18 | Qualified |
As can be known from the above table this patent using 80% garbage and decrease the use of other adjuvants, its quality entirely reaches
Standard, and the index having is very outstanding.
Embodiment 2
The preparation method of embodiment 2 is basically identical with embodiment 1, and difference is, bulky grain flyash, little particle
Flyash and microparticle flyash in mass ratio 3.8:2.6:3 interpolations.
Embodiment 3
The preparation method of embodiment 3 is basically identical with embodiment 1, and difference is, bulky grain flyash, little particle
Flyash and microparticle flyash in mass ratio 4.2:3.2:3 interpolations.
Comparative example 4
The preparation method of embodiment 4 is basically identical with embodiment 1, and difference is, is only pulverized in step 2,
Do not sorted, in step 3, directly added the wet-discharged coal ash after 820kg pulverizes.Its result is as shown in table 2：
Table 2
| Sequence number | Detection project | Measurement unit | Embodiment 1 | Embodiment 4 |
| 1 | Comprcssive strength meansigma methodss | Mpa | 3.69 | 3.54 |
| Monolithic is minimum | Mpa | 3.29 | 2.71 | |
| 2 | Equivalent heat conductivity | W/(m*k) | 0.195 | 0.231 |
| 3 | Anti-permeability performance | mm | 7 | 8 |
| 4 | Frost resistance mass loss | % | 2.3 | 3.1 |
| Frost resistance loss of strength | % | 18 | 20 |
As can be known from the above table, without the fragment of brick directly made using wet-discharged coal ash of sorting resistance to compression, insulation, prevent blending anti-
Have decrease to some degree in the indexs such as jelly, and its heat insulation effect does not reach standard.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and
Within principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (6)
1. a kind of energy-saving environment protection brick, its characteristic is, is made up of the raw material of following weight portion：Flyash 80-86 part after process,
Cement 10-15 part, haydite 5-10 part and ageing leachate 13-20 part；
Wherein, the flyash after process is that wet-discharged coal ash is aged, pulverizes and obtain after sorting；
Described ageing process is to be aged wet-discharged coal ash 18-23 days, and collection leaches water and obtains being aged leachate；
Described crushing process is used for for the wet-discharged coal ash after ripening being crushed to below granularity 10mm；
Described assorting room is used for sub-electing the bulky grain flyash for 4-10mm for the granularity, the little particle fine coal for 1-4mm for the granularity
The ash and granularity microparticle flyash less than 1mm；
Flyash after described process is by bulky grain flyash, little particle flyash and microparticle flyash 3.7- in mass ratio
4.2:2.6-3.2:3 compositions；
Wherein, described cement is the cement of 425# and above label；
Wherein, the granularity of described haydite is less than 10mm.
2. energy-saving environment protection brick according to claim 1 is it is characterised in that described cement is 425# cement.
3. energy-saving environment protection brick according to claim 1 is it is characterised in that described haydite is selected from haydites of book structure or coal ash pottery
Grain.
4. energy-saving environment protection brick according to claim 1 is it is characterised in that the flyash after described process is by bulky grain fine coal
Ash, little particle flyash and microparticle flyash in mass ratio 4:3:3 compositions.
5. the preparation method of the energy-saving environment protection brick according to any one of claim 1-4 is it is characterised in that include following walking
Suddenly：
(1) by wet-discharged coal ash ripening 18-23 days, collect leachate and obtain described ageing leachate；
(2) flyash after ageing is crushed to below granularity 10mm, then sorts, sub-elect the bulky grain powder that granularity is 4-10mm
The microparticle flyash less than 1mm for coal ash, the granularity little particle flyash and granularity for 1-4mm；
(3) haydite, cement, ageing leachate, bulky grain flyash, little particle flyash and microparticle flyash are mixed by proportioning
Close stirring, mixing time 4-6 minute obtains compound；
(4) by compound vibration moulding brickmaking；
(5) fragment of brick after molding is sent into steam curing system and carry out steam curing, first steam curing system is maintained at 15-35
DEG C, fragment of brick stands 1-5 hour, then 28-33 DEG C to 85-95 DEG C of intensification per hour, finally controls in 14-18 hour and obtains after cooling
Finished product.
6. preparation method according to claim 5 is it is characterised in that in step (5), in the winter time, first by steam curing
System is maintained at 15-25 DEG C, and fragment of brick stands 3-5 hour；In spring, summer and autumn, first steam curing system is maintained at 25-33
DEG C, fragment of brick stands 1-2.5 hour.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510182938.4A CN104844083B (en) | 2015-04-17 | 2015-04-17 | A kind of energy-saving environment protection brick and preparation method thereof |
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| CN201510182938.4A CN104844083B (en) | 2015-04-17 | 2015-04-17 | A kind of energy-saving environment protection brick and preparation method thereof |
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| CN104844083B true CN104844083B (en) | 2017-03-01 |
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| CN105696740A (en) * | 2016-02-01 | 2016-06-22 | 湖北锦润科技建材股份有限公司 | Multi-purpose hollow block and application method thereof |
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| CN1046149A (en) * | 1989-04-08 | 1990-10-17 | 国家建筑材料工业局苏州混凝土水泥制品研究院 | Naturally-cured powdered coal ash brick |
| CN1373102A (en) * | 2001-02-28 | 2002-10-09 | 徐尔昌 | Process for chemically pretreating wet-discharged flyash |
| US6907994B2 (en) * | 2001-10-22 | 2005-06-21 | C.A.S.T. Minerals, Inc. | Process for converting wet fly ash into dry useful industrial products |
| CN101186458A (en) * | 2007-12-05 | 2008-05-28 | 哈尔滨工业大学 | Modified coal ash and preparation method thereof |
| CN103981996A (en) * | 2014-05-19 | 2014-08-13 | 叶萌 | Ceramsite concrete block and manufacturing method of ceramsite concrete block |
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Granted publication date: 20170301 Termination date: 20170417 |