CN101913186B - Process and complete equipment for producing porous ceramsite from construction waste - Google Patents
Process and complete equipment for producing porous ceramsite from construction waste Download PDFInfo
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- CN101913186B CN101913186B CN201010248270A CN201010248270A CN101913186B CN 101913186 B CN101913186 B CN 101913186B CN 201010248270 A CN201010248270 A CN 201010248270A CN 201010248270 A CN201010248270 A CN 201010248270A CN 101913186 B CN101913186 B CN 101913186B
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Abstract
The invention provides a process and complete equipment for producing high-performance porous ceramsite from construction waste, which aims at solving the existing conditions that abandoned construction waste in China has a large output, occupies too much land, causes too much harm to the environment and is difficult to recycle. The invention is characterized in that special pretreatment, compounding, granulating, heat treatment and shaping procedures are established on the basis of composition characteristics of the construction waste. By controlling the preparation, the introducing mode and the addition of a pore forming agent and adopting appropriate heat treatment equipment, the invention establishes pertinent heating-up, thermal insulation and cooling systems to produce high-quality ceramsite. The produced ceramsite is mainly used as a biological film carrier in a sewage treatment plant, a filler in an odor treatment trickling filter, a filler of a light-weight high-strength construction material and a thermal and sound insulation material.
Description
Technical field
The present invention relates to the building castoff treatment and disposal; The solid waste resource recovery that belongs to environmental protection and comprehensive utilization of resources field utilizes new technology, the pollution control and the high added value recycling of a large amount of building wastes that are particularly suitable for producing in the urban renewal process.The haydite that makes mainly is used as the filler and the heat insulating and sound insulating material of sewage treatment plant's biofilm carrier, foul smell processing trickling filter filler, light-high-strength construction material.
Background technology
Along with the quickening of name of the country rapid economic development and reconstruction of the old city town speed, the quantity of China's building waste is advanced by leaps and bounds, and has accounted for the 30%-40% of municipal refuse total amount at present.Floor space standard with 500-600 ton/ten thousand square metre calculates that to the year two thousand twenty, China also will increase about 30,000,000,000 square metres of construction area newly, and the new building waste that produces is a shocking numeral.Building waste composition more complicated not only has brick and sandstone, also has reinforcing bar timber, plastic door-window, decoration ceramic tile, glass fragment, assorted soil etc.At present, most building wastes of China are just transported to countryside or alluvial flat by unit in charge of construction without any processing, arbitrarily air storage or landfill.This processing mode at first is to take a large amount of soils, secondly is to cause serious environmental to pollute, and also can destroy soil texture simultaneously, cause ground settlement.Clear with stacking process in drop with problems such as dust, sand-lime fly upward and also can cause serious environmental to pollute.
The Ministry of Construction implements " urban architecture waste management regulation " from June 1st, 2005, requires any entity or individual must not arbitrarily topple over, shed or stack building waste.The resident should collect the building waste and the house refuse that produce in the decorations house process respectively, and is deposited into the appointed place.Also, give heavy punishment, strengthen the urban architecture waste management, ensure the city appearance of the city and environmental sanitation with this to dispose the entity and individual of building waste not according to regulation.The recycling of building waste is to economize on resources, protect ecological effective way.But data show, China's building castoff resource rate less than 5%, and the annual resource rate of European Union member countries surpasses 90%, Korea S, Japanese architecture changing rejected material to useful resource rate reach more than 97%.Therefore, carrying out the reasonable resource recycle of building waste, has been extremely urgent environmental problem.
Summary of the invention
The present invention is directed to that the discarded building waste generation of present China is big, arbitrarily stacking, land occupation, environmental hazard is outstanding, regeneration is difficult present situation; With the building waste is raw material; Cooperate the pore creating material production high-quality porous ceramic grain that utilizes the discarded object modulation;--ball milling-batching--process route of shaping-oven dry-heat treatment-post processing-classification of having formulated sorting-preliminary treatment is established and has been optimized batching mode, heat treatment mode and the post processing mode that influences quality.Concrete technology comprises:
(1) preliminary treatment: reinforcing bar, timber, plastics, aluminium alloy and other metal in the building waste are sorted the back dispose as regenerated resources; Then that remaining brick and tile, sandstone, decoration ceramic tile, glass fragment, assorted soil etc. are broken in jaw crusher; Select broken thing with the 2mm screening, oversize is returned disintegrating machine handle again.
(2) batch mixing granulating working procedure: screenings was transferred in the external heating type rotary furnace under 450-550 ℃ of condition heat treatment 30-60 minute, the raw material after the heat treatment is transferred in the ball mill, ball-milling treatment 45-60 minute, drum's speed of rotation 300-400 rev/min.The pore creating material that adds 20-50% in the ball mill, pore creating material is with the discarded stalk modulator approach production of patent applied for.Continue ball mill and did mixed 5 minutes, then mixed material is transferred in the dosing chamber, add the water suitable quantity of water and stir, use the forming machine granulation again, also can use ramming method granulation formation, natural air drying after the granulation.
(3) heat treatment: the shot-like particle after air-dry is transferred in the rotary furnace, is warming up to 550 ℃, be warming up to 950 ℃ with 12-20 ℃/minute heating rate then, be incubated 15-25 minute, naturally cool to room temperature with 10 ℃/minute heating rates.
(4) shaping is handled: the haydite that is fired into is transferred in the ball mill, after ball milling 8-12 under 250-350 rev/min the speed conditions minute, promptly gets high-performance high-quality haydite.Further set forth content of the present invention below in conjunction with Figure of description and embodiment.
Description of drawings
Fig. 1 is the photo of haydite that building waste is produced.
Fig. 2 is the micropore structure figure of haydite that building waste is produced, and the addition of blowing agent is 20% among the A, and the addition of blowing agent is 40% among the B.
The specific embodiment
Embodiment given below intends the present invention is described further; But can not be interpreted as it is restriction to protection domain of the present invention; The technical staff in this field to some nonessential improvement and adjustment that the present invention makes, still belongs to protection scope of the present invention according to the content of the invention described above.
Embodiment 1:
A kind of technology of building waste production high-performance porous ceramic grain specifically comprises the following steps:
(1) preliminary treatment: reinforcing bar, timber, plastics, aluminium alloy and other metal in the building waste are sorted the back dispose as regenerated resources; Then that remaining brick and tile, sandstone, decoration ceramic tile, glass fragment, assorted soil etc. are broken in jaw crusher; Select broken thing with the 2mm screening, oversize is returned disintegrating machine handle again.
(2) batch mixing granulating working procedure: screenings was transferred in the external heating type rotary furnace under 450 ℃ of conditions heat treatment 30 minutes, the raw material after the heat treatment is transferred in the ball mill ball-milling treatment 45 minutes, 300 rev/mins of drum'ss speed of rotation.Add 20% pore creating material in the ball mill, pore creating material is with the discarded stalk modulator approach production of patent applied for.Continue ball mill and do mixed 5min, then mixed material is transferred in the dosing chamber, add the water suitable quantity of water and stir, use the forming machine granulation again, also can use ramming method granulation formation, natural air drying after the granulation.
(3) heat treatment: the shot-like particle after air-dry is transferred in the rotary furnace, is warming up to 550 ℃, be warming up to 950 ℃ with 12 ℃/minute heating rate then, be incubated 15-25 minute, naturally cool to room temperature with 10 ℃/minute heating rates.
(4) shaping is handled: the haydite that is fired into is transferred in the ball mill, promptly gets high-performance high-quality haydite after 8 minutes at ball milling under 250 rev/mins the speed conditions.
Embodiment 2:
A kind of technology of building waste production high-performance porous ceramic grain specifically comprises the following steps:
(1) preliminary treatment: reinforcing bar, timber, plastics, aluminium alloy and other metal in the building waste are sorted the back dispose as regenerated resources; Then that remaining brick and tile, sandstone, decoration ceramic tile, glass fragment, assorted soil etc. are broken in jaw crusher; Select broken thing with the 2mm screening, oversize is returned disintegrating machine handle again.
(2) batch mixing granulating working procedure: screenings was transferred in the external heating type rotary furnace under 550 ℃ of conditions heat treatment 60 minutes, the raw material after the heat treatment is transferred in the ball mill ball-milling treatment 60 minutes, 400 rev/mins of drum'ss speed of rotation.Add 50% pore creating material in the ball mill, pore creating material is with the discarded stalk modulator approach production of patent applied for.Continue ball mill and do mixed 5min, then mixed material is transferred in the dosing chamber, add the water suitable quantity of water and stir, use the forming machine granulation again, also can use ramming method granulation formation, natural air drying after the granulation.
(3) heat treatment: the shot-like particle after air-dry is transferred in the rotary furnace, is warming up to 550 ℃, be warming up to 950 ℃ with 20 ℃/minute heating rate then, be incubated 25 minutes, naturally cool to room temperature with 10 ℃/minute heating rates.
(4) shaping is handled: the haydite that is fired into is transferred in the ball mill, promptly gets high-performance high-quality haydite after 12 minutes at ball milling under 350 rev/mins the speed conditions.
Embodiment 3:
A kind of technology of building waste production high-performance porous ceramic grain specifically comprises the following steps:
(1) preliminary treatment: reinforcing bar, timber, plastics, aluminium alloy and other metal in the building waste are sorted the back dispose as regenerated resources; Then that remaining brick and tile, sandstone, decoration ceramic tile, glass fragment, assorted soil etc. are broken in jaw crusher; Select broken thing with the 2mm screening, oversize is returned disintegrating machine handle again.
(2) batch mixing granulating working procedure: screenings was transferred in the external heating type rotary furnace under 500 ℃ of conditions heat treatment 45 minutes, the raw material after the heat treatment is transferred in the ball mill ball-milling treatment 50 minutes, 350 rev/mins of drum'ss speed of rotation.Add 40% pore creating material in the ball mill, pore creating material is with the discarded stalk modulator approach production of patent applied for.Continue ball mill and do mixed 5min, then mixed material is transferred in the dosing chamber, add the water suitable quantity of water and stir, use the forming machine granulation again, also can use ramming method granulation formation, natural air drying after the granulation.
(3) heat treatment: the shot-like particle after air-dry is transferred in the rotary furnace, is warming up to 550 ℃, be warming up to 950 ℃ with 18 ℃/minute heating rate then, be incubated 20 minutes, naturally cool to room temperature with 10 ℃/minute heating rates.
(4) shaping is handled: the haydite that is fired into is transferred in the ball mill, promptly gets high-performance high-quality haydite after 10 minutes at ball milling under 300 rev/mins the speed conditions.
According to Fig. 1 between the pattern of the haydite of above-mentioned practical implementation examples produce.Fig. 2 is the high power electron micrograph of haydite that building waste is produced, and shows its interior microscopic pore structure characteristic.
The invention is not restricted to the foregoing description, summary of the invention all can be implemented, and has good effect.
Claims (1)
1. the technology of producing porous ceramsite from construction waste is characterized in that comprising the following steps:
(1) preliminary treatment: reinforcing bar, timber, plastics, aluminium alloy and other metal in the building waste are sorted the back dispose as regenerated resources; Then with remaining brick and tile, sandstone, decoration ceramic tile, glass fragment, the fragmentation in jaw crusher of assorted soil; Select broken thing with the 2mm screening, oversize is returned disintegrating machine handle again;
(2) batch mixing granulating working procedure: screenings is transferred in the external heating type rotary furnace heat-treats; Raw material after the heat treatment is transferred to ball milling in the ball mill; In ball mill, add pore creating material again, it is dried mixed to continue ball milling, then mixed material is transferred in the dosing chamber; Add suitable quantity of water and stir, use natural air drying after the forming machine granulation again;
(3) heat treatment: the shot-like particle after air-dry is transferred in the rotary furnace, is warming up to 550 ℃, and then be warming up to 950 ℃, be incubated 15-25 minute, naturally cool to room temperature with 12-20 ℃/minute heating rate with 10 ℃/minute heating rates;
(4) shaping is handled: the haydite that is fired into is transferred in the ball mill, after ball milling 8-12 under 250-350 rev/min the speed conditions minute, promptly gets high-performance high-quality haydite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201010248270A CN101913186B (en) | 2010-08-09 | 2010-08-09 | Process and complete equipment for producing porous ceramsite from construction waste |
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| CN201010248270A CN101913186B (en) | 2010-08-09 | 2010-08-09 | Process and complete equipment for producing porous ceramsite from construction waste |
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| CN101913186A CN101913186A (en) | 2010-12-15 |
| CN101913186B true CN101913186B (en) | 2012-10-10 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744769B (en) * | 2012-06-28 | 2014-09-10 | 沈阳理工大学 | Method for preparing ceramsite slowly releasing trace metallic elements |
| CN110330312A (en) * | 2019-07-11 | 2019-10-15 | 江苏爱园健康科技有限公司 | It is a kind of it is high absorption, Gao Baoshui porous ceramic grain production line |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557550B (en) * | 2012-03-14 | 2013-03-06 | 山东大学 | Biological aerated filter filler prepared by use of construction wastes, and preparation method thereof |
| JP6259349B2 (en) * | 2014-04-08 | 2018-01-10 | 鹿島建設株式会社 | Waste recycling system and waste recycling method |
| CN104744073B (en) * | 2015-02-03 | 2016-11-23 | 安徽建筑大学 | A kind of phosphorus recovery haydite and preparation method thereof |
| CN105523641B (en) * | 2015-12-08 | 2018-03-20 | 辽宁工业大学 | The preparation method of microorganism compatibility water process light carrier |
| CN108675815B (en) * | 2018-05-25 | 2021-06-11 | 南昌大学 | Preparation method of fly ash sludge ceramsite |
| CN108706958A (en) * | 2018-06-01 | 2018-10-26 | 安徽绿归节能科技有限公司 | The preparation method of brilliant Shi particles crystalline substance Shi plates |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1386194A (en) * | 1972-11-15 | 1975-03-05 | Burns Russell Co Of Baltimore | Masonry blocks |
| CN1944602A (en) * | 2006-10-30 | 2007-04-11 | 四川雷鸣生物环保工程有限公司 | Method for one-step producing biomassfuel, biological haydite and active carbon using high wet mixed city garbage as raw material |
| CN1990415A (en) * | 2005-12-26 | 2007-07-04 | 宁波平海建材有限公司 | Super-light ceramicite and its preparing method |
| CN101624294A (en) * | 2009-08-14 | 2010-01-13 | 准格尔旗粉煤灰煤矸石研发中心 | Porcelain granule and preparation method thereof |
-
2010
- 2010-08-09 CN CN201010248270A patent/CN101913186B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1386194A (en) * | 1972-11-15 | 1975-03-05 | Burns Russell Co Of Baltimore | Masonry blocks |
| CN1990415A (en) * | 2005-12-26 | 2007-07-04 | 宁波平海建材有限公司 | Super-light ceramicite and its preparing method |
| CN1944602A (en) * | 2006-10-30 | 2007-04-11 | 四川雷鸣生物环保工程有限公司 | Method for one-step producing biomassfuel, biological haydite and active carbon using high wet mixed city garbage as raw material |
| CN101624294A (en) * | 2009-08-14 | 2010-01-13 | 准格尔旗粉煤灰煤矸石研发中心 | Porcelain granule and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744769B (en) * | 2012-06-28 | 2014-09-10 | 沈阳理工大学 | Method for preparing ceramsite slowly releasing trace metallic elements |
| CN110330312A (en) * | 2019-07-11 | 2019-10-15 | 江苏爱园健康科技有限公司 | It is a kind of it is high absorption, Gao Baoshui porous ceramic grain production line |
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| CN101913186A (en) | 2010-12-15 |
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