CN1319573A - Method for producing crushed stone type high-strength and ultralight ceramsite by using carbonaceous slate - Google Patents
Method for producing crushed stone type high-strength and ultralight ceramsite by using carbonaceous slate Download PDFInfo
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- CN1319573A CN1319573A CN01107260A CN01107260A CN1319573A CN 1319573 A CN1319573 A CN 1319573A CN 01107260 A CN01107260 A CN 01107260A CN 01107260 A CN01107260 A CN 01107260A CN 1319573 A CN1319573 A CN 1319573A
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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
Abstract
In present invention coal gangue is used as raw material, through the processes of crushing and sieving to obtain crushed stone granules with grain size of 5 mm-10 mm, then places these granules into kiln to roast. At 450-550 deg.C preheating for 40-50 min. and at 1260-1340 deg.c roasting for 45-20 min., cooling to room temp., it can obtain superlight ceramsite whose stacking density grade is 400-500 grade. At 550-650 deg.C preheating for 50 min., at 1180-1250 deg.C roasting for 30 min., slow-cooling, it can obtain high-strength cerasite whose stacking density grade is 700-800 grade.
Description
The present invention relates to a kind of material of construction, especially relate to a kind of production method of coagulation light-weight aggregate.
Lightweight, high-strength be the eternal problem of material of construction research.City Building develops to high level, to save floor occupying area; Urban traffic develops to the multilevel traffic direction, to improve the traffic intersection crowded state.A large amount of civil construction project facts have proved both at home and abroad, adopt high-strength light light-weight aggregate and two measures of Optimum design of engineering structure, can make the cost of bridge and high-rise reduce by 10%～20%, thereby save a large amount of finances for the construction of infrastructure.External nearly half a century, the industrial development of high-strength concrete light-weight aggregate is rapid, and China also entered the fast-developing phase in recent years.Yunnan Province is earthquake-prone region, and the Antiseismic building performance should be subjected to enough attention.Following 10 years, Yunnan Province will drop into 3,000 hundred million yuan of funds, build up the multilevel traffic network system.Therefore, providing a large amount of light high strength concrete light-weight aggregates is pressing for of market economic development.
Yunnan Province's Yipinglang colliery with year production history surplus in the of 60 is being contained a large amount of carbonaceous argillites in the coverage area of coal seam.Up to the present, the low spoil of carbon content is still piled up as waste material, and has piled up and be waste dump, fails to obtain any utilization.
The present invention is based on a kind of like this discovery and finishes, and promptly above-mentioned spoil as trash discharge when adopting the suitable condition of firing, can unexpectedly be produced fine high-strength ceramic granule and Superlight ceramsites.The intensive test work of the inventor confirms that the spoil of Yipinglang colliery whole mining area discharging is the extremely excellent raw material of baking ceramsite, is that the Nature is given human precious resources.
Therefore, the object of the present invention is to provide a kind of method of producing high-strength and Superlight ceramsites, become " giving up " into precious with the carbonaceous argillite.Simultaneously, enforcement of the present invention also will help the exposure in coal seam, help the exploitation of coal, and then the Economic development of this area is produced positive influence.
The invention provides a kind of method of producing crushed stone type high-strength and Superlight ceramsites with the carbonaceous argillite, this method comprises the step of following order:
(1) coal gangue with Yipinglang colliery is a raw material, and through broken, screening, the particle diameter of gravel particle is 5mm～10mm, gets the material kiln-firing ready;
(2) 450 ℃～550 ℃ following preheatings 40～50 minutes, 1260 ℃～1340 ℃ following roastings 15～20 minutes, be cooled to room temperature, can make the tap density grade and be 400～500 grades broken stone type Superlight ceramsites.
(3),, after cooling off at a slow speed again, can make the tap density grade and be 700～800 grades high-strength ceramic granule 1180 ℃～1250 ℃ following roastings 30 minutes 550 ℃～650 ℃ following preheatings 50 minutes.
Described preheating, roasting are to carry out under oxidizing atmosphere, to guarantee the quality of product.
Described spoil also can cooperate with hydromica class or smectites clayey raw material through grinding, is used to make ball-shaped or pebble-type lightweight or high-strength ceramic granule.
Compared with prior art, the present invention has following outstanding advantage:
1, the present invention select with Yunnan Province's Yipinglang colliery (state-run colliery and periphery prolong continuous nearly ten kilometers individual small coal mine mine discharging coal gangue---the carbonaceous argillite is a raw material; production high-quality haydite; give the discharge of always being put aside as useless in decades new life; become " giving up " into precious; the development and use of resource had both been helped; also help environment protection, achieve many things at one stroke, have great economic benefit, social benefit and environmental benefit.
2, the present invention only needs spoil as raw material, does not add other auxiliary material, and abundant raw material is with low cost.
3, technical process of the present invention is simple, processing condition are reasonable, and the shell of the haydite of firing has the breach that produces after the more expansion, when with sand-cement slurry mix concrete batching, haydite and sand-cement slurry bond better, can improve concrete physical and mechanical property.
In following embodiment, will further describe the present invention.But, requiring emphasis and point out, these embodiment only are used to the present invention is described and to the present invention without limits.
Embodiment 1
It is as shown in table 1 that the present invention is used to produce the chemical composition analysis result of carbonaceous argillite of high-strength or light ceramic.
Table 1.
| Composition | Carbon content | SiO 2 | ?Al 2O 3 | Fe 2O 3 | ????CaO | ????MgO | ????TiO 2 | ??R 2O | ???P 2O 5 | ????S |
| ％ | ?＜10 | ?52.34 -60.84 | ?19.66- ?29.63 | ?6.38- ?12.26 | ????1.37- ????3.33 | ????0.72- ????3.12 | ????0.65- ????5.22 | ???3- ???4 | ???0.09- ???0.14 | ???0.05- ???0.98 |
Embodiment 2-10
It is as shown in table 2 that the present invention produces the processing condition and the examination and test of products result of ultralight type haydite: table 2.
| Preheating temperature ℃ | Warm up time branch | Maturing temperature | The roasting time branch | Tap density kg/M 3 | 1 hour water-intake rate (%) | 24 hours water-intake rates (%) |
| ???650 | ????40 | ????1340 | ????15 | ????477 | ????6.84 | ????11.10 |
| ???550 | ????40 | ????1340 | ????15 | ????373 | ????5.46 | ????9.24 |
| ???450 | ????50 | ????1340 | ????15 | ????285 | ????5.43 | ????7.69 |
| ???650 | ????40 | ????1310 | ????15 | ????494 | ????6.70 | ????11.21 |
| ???550 | ????40 | ????1310 | ????15 | ????451 | ????4.72 | ????9.43 |
| ???450 | ????50 | ????1310 | ????15 | ????385 | ????6.50 | ????11.0 |
| ???650 | ????40 | ????1260 | ????20 | ????623 | ????2.33 | ????8.53 |
| ???550 | ????40 | ????1260 | ????20 | ????670 | ????4.96 | ????10.64 |
| ???450 | ????50 | ????1260 | ????20 | ????493 | ????5.49 | ????9.38 |
Embodiment 11-12
It is as shown in table 3 that the present invention produces the processing condition and the examination and test of products result of high strong type haydite.
Annotate: its assay is that provide at material of construction product quality supervision and inspection station, Yunnan Province, and test basis is a GB/T17431.2-1998 table 3
| Preheating temperature ℃ | Warm up time branch | Maturing temperature ℃ | The roasting time branch | Tap density Kg/M 3 | 1 hour water-intake rate (%) | 24 hours water-intake rates (%) | Cylindrical compress strength Mpa |
| ?550-650 | ????50 | ????1200 | ????25 | ????805 | ????4.24 | ???7.96 | ????5.5 |
| ?550-650 | ????50 | ????1180 | ????30 | ????765 | ????4.37 | ???7.87 | ????6.2 |
Detect through Conjoint Analysis test center of Yunnan Province institution of higher education, its result is as follows:
Fig. 1 is the X ray diffracting spectrum of coal gangue used in the present invention;
Fig. 2 is the X ray diffracting spectrum of the high-strength ceramic granule of the present invention's production;
Fig. 3 is the X ray diffracting spectrum of the high-strength ceramic granule mineral composition of the present invention's production.
As shown in Figure 1, the essential mineral of spoil used in the present invention consists of: illite, kaolinite, montmorillonite, halloysite, mica, carborundum, ferrotianium spinelle, oblique red phosphorus ore deposit, siderite belongs to the clayey rocks, particularly contains SiC. The test data that the present invention is definite discloses first, the Yipinglang colliery spoil the expansion temperature scope reach 160 ℃, so wide expansion temperature scope there is no the data report both at home and abroad. Just because the present invention has utilized the special expansion character of raw material dexterously, therefore obtained well beat all technique effect. The present invention adopts corresponding preheating, roasting technique condition to develop ultralight and high-strength ceramic granule according to the difference in the expansion character of different temperatures section.
As shown in Figure 2, the feature crest of the X ray diffracting spectrum of the high-strength ceramic granule of the present invention's production shows it is a kind of high-quality high-strength ceramic granule. As shown in Figure 3, diffractometer machine examination result confirms that the mineral composition of described haydite is: quartz, mullite, olivine, and content is higher, thereby consisted of high-strength haydite skeleton.
The present invention fires the reaction mechanism of high-quality haydite: as shown in table 1, the analytical data of material chemical component of the present invention is bright, because TiO in the spoil2Content high (0.65%～5.22%), under hot conditions, titanium ion can improve velocity of ion exchange significantly, and is strong to the hydrotropy effect of mineral high temperature sintering. In this spoil as CaO, MgO, the R of solvent component2The content of O is moderate, forms too much liquid phase in the time of can not making the material sintering, thereby, be not easy to occur melting phenomenon. Test shows no matter how the additive of natural dilatancy raw material and other classifications is allocated artificially, also can't obtain technique effect of the present invention. On the other hand, the broken stone type ceramsite production process requires Raw Ore should have certain mechanical strength, is beneficial to Mechanical Crushing. The rock degree of the used clay mineral of the present invention is higher, changes argillaceous slate into by argillaceous rocks, thereby mechanical strength is higher.
Claims (3)
1, a kind of method of producing crushed stone type high-strength and Superlight ceramsites with the carbonaceous argillite, this method comprises the step of following order:
(1) coal gangue with Yipinglang colliery is a raw material, and through broken, screening, the particle diameter of gravel particle is 5mm～10mm, gets the material kiln-firing ready;
(2) 450 ℃～550 ℃ following preheatings 40～50 minutes, 1260 ℃～1340 ℃ following roastings 15～20 minutes, be cooled to room temperature, can make the tap density grade and be 400～500 grades broken stone type Superlight ceramsites.
(3),, after cooling off at a slow speed again, can make the tap density grade and be 700～800 grades crushed stone type high-strength haydite 1180 ℃～1250 ℃ following roastings 30 minutes 550 ℃～650 ℃ following preheatings 50 minutes.
2, according to the production method of claim 1, it is characterized in that described preheating, roasting is to carry out under oxidizing atmosphere.
3,, it is characterized in that described spoil also can cooperate with hydromica class or smectites clayey raw material through grinding and be used to make ball-shaped or pebble-type lightweight or high-strength ceramic granule according to the production method of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011072601A CN1164528C (en) | 2001-03-17 | 2001-03-17 | Method for producing crushed stone type high-strength and ultralight ceramsite by using carbonaceous slate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011072601A CN1164528C (en) | 2001-03-17 | 2001-03-17 | Method for producing crushed stone type high-strength and ultralight ceramsite by using carbonaceous slate |
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| Publication Number | Publication Date |
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| CN1319573A true CN1319573A (en) | 2001-10-31 |
| CN1164528C CN1164528C (en) | 2004-09-01 |
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| CNB011072601A Expired - Fee Related CN1164528C (en) | 2001-03-17 | 2001-03-17 | Method for producing crushed stone type high-strength and ultralight ceramsite by using carbonaceous slate |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349827C (en) * | 2002-11-21 | 2007-11-21 | 李肖平 | High-blended gangue bulked light high-strength material and making method thereof |
| CN102923836A (en) * | 2012-11-15 | 2013-02-13 | 常州大学 | Method for treating washing wastewater by using composite-film modified sintered gangue ceramsite |
| CN103553553A (en) * | 2013-10-25 | 2014-02-05 | 东北大学 | Method of preparing ceramsite by sintering industrial waste residue of barren coal gangue as raw materials |
| CN114560641A (en) * | 2022-02-16 | 2022-05-31 | 北京蚯蚓科技有限公司 | Method for preparing gravel |
| CN116789380A (en) * | 2023-06-26 | 2023-09-22 | 毓美生态环境科技(北京)有限公司 | Lightweight aggregate prepared from solid waste, and preparation method and application thereof |
-
2001
- 2001-03-17 CN CNB011072601A patent/CN1164528C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100349827C (en) * | 2002-11-21 | 2007-11-21 | 李肖平 | High-blended gangue bulked light high-strength material and making method thereof |
| CN102923836A (en) * | 2012-11-15 | 2013-02-13 | 常州大学 | Method for treating washing wastewater by using composite-film modified sintered gangue ceramsite |
| CN103553553A (en) * | 2013-10-25 | 2014-02-05 | 东北大学 | Method of preparing ceramsite by sintering industrial waste residue of barren coal gangue as raw materials |
| CN103553553B (en) * | 2013-10-25 | 2015-11-04 | 东北大学 | A kind of with lean property industrial residue of coal gangue for raw material sintering prepares the method for haydite |
| CN114560641A (en) * | 2022-02-16 | 2022-05-31 | 北京蚯蚓科技有限公司 | Method for preparing gravel |
| CN116789380A (en) * | 2023-06-26 | 2023-09-22 | 毓美生态环境科技(北京)有限公司 | Lightweight aggregate prepared from solid waste, and preparation method and application thereof |
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| CN1164528C (en) | 2004-09-01 |
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Granted publication date: 20040901 Termination date: 20130317 |