CN102206054A - Renewable active powder and preparation method thereof - Google Patents
Renewable active powder and preparation method thereof Download PDFInfo
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- CN102206054A CN102206054A CN2011100857745A CN201110085774A CN102206054A CN 102206054 A CN102206054 A CN 102206054A CN 2011100857745 A CN2011100857745 A CN 2011100857745A CN 201110085774 A CN201110085774 A CN 201110085774A CN 102206054 A CN102206054 A CN 102206054A
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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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 discloses renewable active powder and a preparation method thereof. The method comprises the following steps: A, feeding; B, primarily smashing; C, secondarily smashing; D, removing iron; E, sieving; F, drying; and grinding. According to the preparation method in the invention, the obtained renewable active powder has the advantages of high quality, good stability and lowered production cost, thus providing conditions for production of a high-value-added renewable active powder product and achieving comprehensive utilization.
Description
Technical field
The present invention relates to the made from construction refuse resource field, particularly, relate to a kind of regeneration activity powder and preparation method thereof.
Background technology
Contain waste and old shale brick, waste and old concrete, cullet, waste ceramic etc. in the building waste,, have the characteristics of mineralising waste residue through processing regenerated one-tenth regeneration aggregate.Waste ceramic in the building waste, shale goods contain a large amount of silicon oxide, aluminum oxide isoreactivity material, are a kind of blended materials that is similar to the volcano grey matter; Building waste after cement stone in the building waste is pulverized, also can excite its activity, so can be used for preparing active powder.
Construction refuse regenerated active powder can be used as cement, mortar, concrete adulterant, but substitute for clay is as the raw material of producing cement, also can make vitrified brick, steam-pressing aero-concrete, foamed concrete, hollow block, sintering or non-sintering ceramsite, making roads etc. are one of directions of made from construction refuse resource utilization development.Experimental study shows that the activity index of the powder of the regeneration aggregate preparation that obtains after construction waste crushing is handled in direct employing is 66%.
Summary of the invention
The objective of the invention is to open up a kind of new application approach of building waste, thereby a kind of preparation method of new regeneration activity powder is provided.
Another object of the present invention is to provide regeneration activity powder by this method preparation.
The preparation method of regeneration activity powder of the present invention may further comprise the steps:
A, feed: building waste is transported in the load hopper;
B, one-level fragmentation: use the one-level shredder assembly with the bulk construction waste crushing;
C, two-stage crushing: with the two-stage crushing device with the one-level fragmentation after construction waste crushing;
D, deironing: with deironing apparatus with two-stage crushing after magnetic materials such as metal in the building waste reject, be transported to the one-level screening plant then;
E, one-level screening:, directly collect after the fine aggregate (＜10mm, particle diameter can change as the case may be) that sieves out entered the mud-removing system desilt with the building waste after the sieve apparatus screening deironing; Coarse aggregate greater than maximum screen mesh size (being preferably 30mm or 40mm) enters secondary breaker fragmentation once more; Then directly collect between the intermediary aggregate.
F, oven dry: with the regenerated coarse aggregate of drying unit oven dry collection, to moisture content＜6wt%;
G, grinding: the regeneration aggregate of collecting is conveyed into shredder, is prepared into active powder, finished product by conveyor delivery to finished product bin.
According to method of the present invention, described one-level shredder assembly is preferably jaw crusher.
According to method of the present invention, described two-stage crushing device is preferably that circular cone is broken, hammer or impact breaker.
According to method of the present invention, described deironing apparatus is permanent magnet or electro-magnet.
According to method of the present invention, described sieve apparatus disposes multi-deck screen, and the mesh size of sieve apparatus is decided as the case may be.
According to method of the present invention, described drying unit is tower drier or rotary dryer.
According to method of the present invention, described grinding machine is the trapezoidal pulverizing mill of vertical material grinder, efficient ball mill or high pressure.
Regeneration activity powder provided by the invention is by above-described method preparation.
Preparation method of the present invention, adopting building waste is raw material preparing regeneration activity powder, cost is low, can solve the building waste handling problems, and building waste is got utilization, and building waste is worth significantly improves.And the quality height of the regeneration activity powder that obtains, activity index can surpass 70%, for high added value regeneration activity powder production of articles provides the raw material basis.
Description of drawings
Fig. 1 is the preparation method's of a regeneration activity powder of the present invention schema.
Embodiment
Below in conjunction with concrete enforcement, the invention will be further described.
The preparation of embodiment 1 regeneration activity powder
As shown in Figure 1, the preparation process of the regeneration activity powder of present embodiment is specific as follows:
A, feed: building waste is transported in the load hopper;
B, one-level fragmentation: with jaw crusher building waste (not passing through the building waste of any processing in the stockyard) is carried out slightly breaking, reinforcing bar in the bulk building waste is separated with concrete;
C, two-stage crushing: with impact breaker or cone crusher with the one-level fragmentation after and carry out fragmentation through the later building waste of manual sorting, realize earth and the refinement of building slag;
D, deironing: remove with the metal species material in the building waste of deironing apparatus such as permanent magnet after, the building waste after the deironing is transported in the one-level screening plant with two-stage crushing;
E, one-level screening: dispose the building waste after the sieve apparatus screening deironing of multi-deck screen in different apertures, (screen mesh size is preferably 10mm by screen cloth, and can change as the case may be) the heavier recycled fine aggregate of silt content sift out, be transported to mud-removing system by rotary conveyor, the recycled fine aggregate behind the desilt is collected; (the maximum feed size according to drying plant and grinding machine is not decided by maximum screen mesh size, be preferably 30mm or 40mm) aggregate be conveyed into the two-stage crushing device again, between the intermediary regenerated coarse aggregate (particle diameter is: 10mm～30mm or 10mm～40mm) directly collect, the regeneration aggregate of collection by conveyor delivery in drying unit;
F, oven dry: will sieve the aggregate collected the back (calculates with weight ratio: moisture＞wt6%) be transported to drying machine drying by belt, with the water ratio of controlling material less than 6wt% (weight ratio calculating);
G, grinding: the regeneration aggregate after will drying is transported to material grinder and grinds, and is prepared into the regeneration activity powder, is transported to material bin.
The performance test of embodiment 2 regeneration activity powders
The regeneration activity powder of embodiment 1 preparation, its performance test results sees Table 1.Wherein, radioactivity is carried out with reference to GB6566; Loss on ignition, sulphur trioxide and free calcium oxide carry out with reference to GB/T 176; Soundness test is undertaken by GB/T1346; Fineness detects with the negative pressure screen analyzer; Water demand ratio is pressed the degree of mobilization of GB/T 2419 determination test glue sand and contrast glue sand, and the ratio of the amount of water when reaching 130mm～140mm with the two degree of mobilization is determined the water demand ratio of regeneration adulterant; Water content with before drying and the ratio of the quality before the difference of the quality after the oven dry and the oven dry determine; Activity index is pressed the ultimate compression strength of GB/T 17671 determination test glue sand and contrast glue sand, determines with the ratio of the two ultimate compression strength.
The performance of table 1 regeneration activity powder
| Test item | Detected result |
| Internal radiation index I Ra | ＜0.2 |
| External radiation exposure index I r | ＜0.2 |
| Fineness (45 μ square hole sieves tail over), % | ＜25 |
| Water demand ratio, % | ＜105 |
| Loss on ignition, % | ＜7.3 |
| Water content, % | ＜1.0 |
| Sulphur trioxide, % | ＜1.0 |
| Free calcium oxide, % | ＜1 |
| Stability, mm | ＜2.0 |
| The 28d activity index, % | ≥70.0 |
The present invention has following useful effect:
1, environmental protection, raising building waste are worth
Adopting building waste is that raw material prepare renewable active powder, can solve the building waste handling problems, and building waste is got utilization.
Product after building waste is processed mainly is aggregate and non-burning brick goods, and its value is not high, but by behind the preparation renewable active powder, building waste is worth significantly improves. For realizing that the comprehensive utilization of made from construction refuse resource high added value lays the foundation.
2, active powder quality height
Preparation method of the present invention is by sieving the aggregate after twice fragmentation, and reduces the clay content of regeneration aggregate by mud-removing system; Through removing the impurity such as wood chip, plastics after the oven dry, make the aggregate cleaningization, improve to a certain extent the activity of building waste simultaneously, therefore, preparation method's of the present invention active powder quality height.
3, created condition for the production of high added value renewable active powder goods
Active powder belongs to the high added value reconstituted product, and renewable active powder can be used for producing regenerated powder air-entrained concrete building block, cement active admixture, concrete admixture, regenerated powder steam-pressing brisk etc., and this preparation technology provides the raw material basis for the powder goods.
Claims (8)
1. the preparation method of a regeneration activity powder is characterized in that, may further comprise the steps:
A, feed: building waste is transported in the load hopper;
B, one-level fragmentation: use the one-level shredder assembly with the bulk construction waste crushing;
C, two-stage crushing: with the two-stage crushing device with the one-level fragmentation after construction waste crushing;
D, deironing: with deironing apparatus with two-stage crushing after magnetic materials such as metal in the building waste reject;
E, one-level screening:, directly collect after the fine aggregate that sieves out entered the mud-removing system desilt with the building waste after the sieve apparatus screening deironing;
F, oven dry: dry the regenerated coarse aggregate of collection to moisture content＜6wt% with drying unit;
G, grinding: the regeneration aggregate of collecting is conveyed into shredder grinds, be prepared into described regeneration activity powder.
2. preparation method according to claim 1 is characterized in that, described one-level shredder assembly is a jaw crusher.
3. preparation method according to claim 1 is characterized in that, described two-stage crushing device is that circular cone is broken, hammer mill, impact breaker.
4. preparation method according to claim 1 is characterized in that, described deironing apparatus is permanent magnet or electro-magnet.
5. preparation method according to claim 1 is characterized in that described sieve apparatus disposes multi-deck screen.
6. preparation method according to claim 1 is characterized in that, described drying unit is tower drier or rotary dryer.
7. preparation method according to claim 1 is characterized in that, described grinding machine is the trapezoidal pulverizing mill of vertical material grinder, efficient ball mill or high pressure.
8. preparation method according to claim 1 is characterized in that, the particle diameter＜10mm of the described fine aggregate that sieves out.
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| CN2011100857745A CN102206054A (en) | 2011-04-07 | 2011-04-07 | Renewable active powder and preparation method thereof |
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| CN2011100857745A CN102206054A (en) | 2011-04-07 | 2011-04-07 | Renewable active powder and preparation method thereof |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159421A (en) * | 2011-12-09 | 2013-06-19 | 上海德滨环保科技有限公司 | Environment-friendly recycled fine sand |
| CN103159420A (en) * | 2011-12-09 | 2013-06-19 | 上海德滨环保科技有限公司 | Environment-friendly powder material and preparation method for same |
| CN103613300A (en) * | 2013-12-11 | 2014-03-05 | 詹树荣 | Recycling and treatment process and device for waste ceramic by crushing and grinding and pre-mixed concrete |
| CN103853122A (en) * | 2012-12-04 | 2014-06-11 | 洛阳智超机电科技有限公司 | Intelligent control system for construction waste recycling joint production line |
| CN103848584A (en) * | 2012-12-03 | 2014-06-11 | 洛阳智超机电科技有限公司 | Co-production process for recycling micropowder and fine sands from construction wastes |
| CN106111674A (en) * | 2016-08-03 | 2016-11-16 | 韦振兴 | A kind of processing method of solid refuse |
| CN103159420B (en) * | 2011-12-09 | 2016-12-14 | 上海德滨环保科技有限公司 | A kind of Environment-friendlypowder powder material and preparation method thereof |
| CN106552810A (en) * | 2016-08-10 | 2017-04-05 | 合肥中亚建材装备有限责任公司 | A kind of method that vertical mill processes building waste |
| CN107413457A (en) * | 2017-04-19 | 2017-12-01 | 浙江龙泉正大生物科技有限公司 | Ultramicro grinding streamline and its technique |
| CN109250938A (en) * | 2018-09-20 | 2019-01-22 | 中建水务环保有限公司 | A kind of regeneration activity powder and its method and apparatus by building waste preparation |
| CN109433579A (en) * | 2018-11-12 | 2019-03-08 | 长沙万荣粉体设备科技有限公司 | A kind of fixed-end forces equipment |
| CN110734256A (en) * | 2019-11-15 | 2020-01-31 | 扬州大学 | foam concrete doped with recycled brick powder and preparation method thereof |
| CN111205003A (en) * | 2020-01-19 | 2020-05-29 | 武汉理工大学 | Preparation method of regenerated cementing material |
-
2011
- 2011-04-07 CN CN2011100857745A patent/CN102206054A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159421A (en) * | 2011-12-09 | 2013-06-19 | 上海德滨环保科技有限公司 | Environment-friendly recycled fine sand |
| CN103159420A (en) * | 2011-12-09 | 2013-06-19 | 上海德滨环保科技有限公司 | Environment-friendly powder material and preparation method for same |
| CN103159420B (en) * | 2011-12-09 | 2016-12-14 | 上海德滨环保科技有限公司 | A kind of Environment-friendlypowder powder material and preparation method thereof |
| CN103159421B (en) * | 2011-12-09 | 2016-08-03 | 上海德滨环保科技有限公司 | A kind of environmentally friendly regeneration fine sand |
| CN103848584A (en) * | 2012-12-03 | 2014-06-11 | 洛阳智超机电科技有限公司 | Co-production process for recycling micropowder and fine sands from construction wastes |
| CN103848584B (en) * | 2012-12-03 | 2015-09-23 | 洛阳智超机电科技有限公司 | A kind of construction refuse resource regenerative micro powder, fine sand process for combination producing method |
| CN103853122A (en) * | 2012-12-04 | 2014-06-11 | 洛阳智超机电科技有限公司 | Intelligent control system for construction waste recycling joint production line |
| CN103853122B (en) * | 2012-12-04 | 2016-12-28 | 洛阳智超机电科技有限公司 | A kind of construction refuse resource combined production line intelligence control system |
| CN103613300A (en) * | 2013-12-11 | 2014-03-05 | 詹树荣 | Recycling and treatment process and device for waste ceramic by crushing and grinding and pre-mixed concrete |
| CN106111674A (en) * | 2016-08-03 | 2016-11-16 | 韦振兴 | A kind of processing method of solid refuse |
| CN106552810A (en) * | 2016-08-10 | 2017-04-05 | 合肥中亚建材装备有限责任公司 | A kind of method that vertical mill processes building waste |
| CN107413457A (en) * | 2017-04-19 | 2017-12-01 | 浙江龙泉正大生物科技有限公司 | Ultramicro grinding streamline and its technique |
| CN109250938A (en) * | 2018-09-20 | 2019-01-22 | 中建水务环保有限公司 | A kind of regeneration activity powder and its method and apparatus by building waste preparation |
| CN109433579A (en) * | 2018-11-12 | 2019-03-08 | 长沙万荣粉体设备科技有限公司 | A kind of fixed-end forces equipment |
| CN110734256A (en) * | 2019-11-15 | 2020-01-31 | 扬州大学 | foam concrete doped with recycled brick powder and preparation method thereof |
| CN111205003A (en) * | 2020-01-19 | 2020-05-29 | 武汉理工大学 | Preparation method of regenerated cementing material |
| CN111205003B (en) * | 2020-01-19 | 2021-06-25 | 武汉理工大学 | Preparation method of regenerated cementing material |
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Application publication date: 20111005 |