CN102765931B - Method for preparing ceramic material utilizing magnetic separation tail sludge from steel slag wet process - Google Patents

Method for preparing ceramic material utilizing magnetic separation tail sludge from steel slag wet process Download PDF

Info

Publication number
CN102765931B
CN102765931B CN201210276443.4A CN201210276443A CN102765931B CN 102765931 B CN102765931 B CN 102765931B CN 201210276443 A CN201210276443 A CN 201210276443A CN 102765931 B CN102765931 B CN 102765931B
Authority
CN
China
Prior art keywords
raw
ceramic
tail
magnetic separation
slag
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201210276443.4A
Other languages
Chinese (zh)
Other versions
CN102765931A (en
Inventor
李宇
艾仙斌
刘晓明
张玲玲
顾晓朦
苍大强
唐奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qian'an Jinyu Shougang Environmental Protection Technology Co.,Ltd.
Original Assignee
University of Science and Technology Beijing USTB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by University of Science and Technology Beijing USTB filed Critical University of Science and Technology Beijing USTB
Priority to CN201210276443.4A priority Critical patent/CN102765931B/en
Publication of CN102765931A publication Critical patent/CN102765931A/en
Application granted granted Critical
Publication of CN102765931B publication Critical patent/CN102765931B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00Technologies relating to the processing of minerals
    • Y02P40/60Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes

Abstract

The invention discloses a method for preparing a ceramic material utilizing magnetic separation tail sludge from a steel slag wet process, and belongs to the fields of source comprehensive utilization and environmental protection. The mass percent of a tail sludge drier (converted into dry basis) is 5%-68% of the mixed raw material drier (converted into dry basis); and the mass percent of various component driers in the corresponding ingredients is as follows: 15-35% of clay, 3-25% of feldspar, 5-30% of pyrauxite, and 0.1-8% of quartz and on the like. The preparation method comprises the following steps: the wet tail sludge and the corresponding ingredients are added in a bal mill to be milled uniformly; then the mixed materials are dried, pelletized and pressed to mold, or the mixed materials are extruded and molded; and further, the molded materials are placed in a kiln and fired at 1100-1250 DEG C to obtain the ceramic product. By virtue of a deep iron selection process of steel works, the tail sludge slurry with granularity, iron content and water content meeting the requirements of ceramic raw material is obtained, so that the high power consumption and low efficiency of metallurgic slag utilized for the traditional ceramic preparation are reduced.

Description

A kind of method of utilizing the clay standby stupalith of slag wet magnetic separation tail
Technical field:
The method that the present invention relates to directly utilize the clay standby stupalith of slag wet magnetic separation tail, belongs to comprehensive utilization of resources and field of environment protection.
Background technology:
China is Iron and Steel Production big country, produces approximately 600,000,000 tons of crude steel per year, as the by product of steelmaking process, produces the cast steel quantity of slag per year and reaches several ten million tons.At present not yet find extensive resource utilization rationally to utilize the effective way of steel slag resource, the utilization ratio of China's slag is still lower than 30%.
The ferriferous raw material reclaiming in slag is the main method that current Steel Plant process slag, and this realizes by the technique of dry milling magnetic separation conventionally.Yet, because the occurrence patterns of iron in slag is complicated, steel slag grinding to smaller particle size just can need to be reached to ideal effect.For this reason, recently occur in a large number the slag of dry method grinding further being carried out to the technique of wet grinding and magnetic separation, this has improved the rate of recovery of ferriferous raw material in slag greatly.Yet, slag wet magnetic separation tail mud after wet-milling is because greatly reducing its activity that is used as cement raw material containing large water gaging, also need to dry and lot of energy simultaneously, therefore slag wet magnetic separation tail mud selects the steel slag tailings of iron to be more difficult to utilize than conventional dry, and has more serious problem of environmental pollution simultaneously.
There is lack of raw materials makes to utilize industry and mining solid waste to become an effective way that expands ceramic raw material for ceramic industry.It is aggregate that patent publication No. CN1548398 propose to adopt one or both that select iron powder mine tailing, steel-making waste residue and waste ceramic, carry out steel-making waste residue and be applied to the research and probe of wall floor tile production, but raw material mixes, processing effect is poor, and the irony existing in raw material very easily affects the performance of product.Patent publication No. CN101386528A provides a kind of method of utilizing slag production ceramic tile, it produces ceramic feasible process, but this technique be take Traditional bulk slag or the coarse grained iron tailings that selects as raw material, need to carry out to slag the pre-treatment such as grinding, deironing, and slag grindability is poor, the occurrence patterns of iron is complicated, and this has increased energy consumption and the cost of ceramics factory's raw materials pretreatment greatly, also difficulty and the efficiency of deironing in production process have been strengthened, therefore not yet promotion and application.
Visible, from slag pottery preparation process, have that slag grindability is poor and grinding energy is high, iron-holder many and select the problems such as iron efficiency is low, wet-milling water consumption; And from slag wet magnetic separation tail mud feature, there is the composition close with common slag, but there is thinner granularity (median size reach tens of micron), iron-holder few (through degree of depth magnetic separation), there is certain moisture (controlled by pressure filter).Therefore, these features are just in time conducive to reduce energy consumption and the cost of stupalith preparation process.
In the compositional system of preparing at pottery, patent publication No. CN101386528A has proposed to add a large amount of talcum mineral at slag ceramic raw material, and preparation is applicable to the method for the standby diopside system pottery of prepared from steel slag.Because magnesium content in slag wet magnetic separation tail mud is less, diopside needs additional magnesium-containing mineral, and as talcum, this causes slag wet magnetic separation tail mud utilization in pottery to be restricted.And slag wet magnetic separation tail mud is prepared into wollastonite system pottery or lime feldspar system pottery (containing the less Mg of more Ca), be the effective ways that improve its utilization.
Visible, set up metallurgy industry slag and reclaim the technique that links prepared by ferriferous raw material technique and ceramic industry slag pottery, the steel slag tailing slurry that realization is reclaimed irony using the Steel Plant degree of depth is prepared stupalith as raw material, is undoubtedly the effective way that extensive resource utilization, high added value, environmental protection are utilized steel slag resource.
Summary of the invention:
The object of this invention is to provide a kind of stupalith and preparation method who utilizes slag wet magnetic separation tail mud, realize steel industry and link with the resource ecology of ceramic industry, the method has obvious society, economy and environment benefit.
Concrete technical scheme of the present invention, comprises the following steps:
By controlling slag wet method fine grinding process, to obtain tail mud pellet degree be that 250 mesh sieves tail over and are less than 15%, by controlling tail mud suspension pressure-filtering process, forms the tail material-mud that water ratio is 40%~85%;
Then, will wet tail mud and corresponding batching add carries out grinding in ball mill and mixes, and the mass percent that tail mud siccative accounts for mixing raw material siccative is 5%~68%; The mass percent that each component siccative of corresponding batching accounts for mixing raw material siccative is: clay 15%~35%, and feldspar 5%~25%, agalmatolite 5~30%, quartz 0.1~8%, and add 0.01~0.5% toughener, 0.1~1% liquefactent.Raw material grinding in ball mill mixes to 250 mesh sieves and tails over and be less than 1%.
Further mixing raw material is made to desired shape through super-dry powder process compression moulding, or mixing raw material is directly made to desired shape through extruding shaping technique; Ceramic body after moulding is fired to acquisition ceramic, and the temperature that base substrate enters klining one-tenth is 1100~1250 ℃.
The present invention has the following advantages:
(1) by the technique by the more and more slag graded crushing magnetic separation that adopt of Steel Plant and fine grinding degree of depth recovery irony, obtain the tail mud with appropriate granularity, and as ceramic raw material, without extra grinding process in small, broken bits; The high energy consumption grinding process of having avoided ceramic industry tradition to utilize the poor metallurgical slag of grindability and having needed.
(2) tail mud reclaims irony through the degree of depth, can alleviate the burden of ceramic industry deironing; Avoid the problems that in ceramic industry, irony produces in ceramic preparation process.
(3) be different from traditional ceramic raw material preparation process, add part raw mineral materials and enter Production of Ceramics operation, can realize steel industry and link with the resource direct " green " of ceramic industry.
(4) different diopside system slag potteries, adopt wollastonite or lime feldspar system can make full use of the feature of slag wet magnetic separation tail mud high-calcium low-magnesium, increase the incorporation of slag in pottery.
Embodiment:
Embodiment 1
First by the moisture tail mud press filtration of discharging to water ratio 65%, it is 1.0% that test 250 mesh sieves tail over, in the tail material-mud of water ratio 65%, add clay, agalmatolite, quartz, feldspar etc., each component proportion is: pug (being converted into butt) 34%, clay 20%, feldspar 16%, agalmatolite 25%, quartz 5%, and add 0.05% sodium cellulose glycolate, 0.3% tripoly phosphate sodium STPP, the mixed slurry preparing is carried out to ball milling mixing, sieve, dry powder process is standby.The base substrate of compression moulding after drying, enters sintering in heating installation, and firing temperature is 1140 ℃.The ultimate compression strength of burning till rear goods is 382MPa, and bending strength is 79.50MPa, microhardness 6.52GPa.
Embodiment 2
First by the moisture tail mud press filtration of discharging to water ratio 75%, testing that 250 mesh sieves tail over is 1.7%, in the slurry of water ratio 75%, adds clay, agalmatolite, quartz, feldspar, each component proportion is: pug (being converted into butt) 34%, clay 15%, feldspar 16%, agalmatolite 30%, quartzy 5%, and add 0.1% sodium cellulose glycolate, 0.9% tripoly phosphate sodium STPP, and the mixed slurry preparing is carried out to ball milling mixing, dry powder process is standby.The base substrate of compression moulding after drying, enters sintering in heating installation, and firing temperature is 1140 ℃.The ultimate compression strength of burning till rear goods is 155MPa, and bending strength is 70.28MPa, microhardness 6.02GPa.
Embodiment 3
Preparation process is with described in embodiment 1.Directly at water ratio 50%, it is in 9.2% slurry that 250 mesh sieves tail over, and adds clay, pyrophyllite, quartz, feldspar etc., and each component proportion is: pug (being converted into butt) 60%, clay 16%, feldspar 9%, agalmatolite 12%, quartzy 3%, and add 0.2% sodium cellulose glycolate, 0.9% tripoly phosphate sodium STPP, the mixed slurry preparing is carried out to ball milling mixing, sieve, dry powder process is standby.The base substrate of compression moulding after drying, enters sintering in heating installation, and firing temperature is 1155 ℃.The ultimate compression strength of burning till rear goods is 283MPa, and bending strength is 68.13MPa, microhardness 6.46GPa.
Embodiment 4
Preparation process is with described in embodiment 1.Directly at water ratio 55%, it is in 6.9% slurry that 250 mesh sieves tail over, and adds clay, agalmatolite, quartz, feldspar, and each component proportion is: pug (being converted into butt) 50%, clay 19%, feldspar 12%, agalmatolite 15%, quartzy 4%, and add 0.2% sodium cellulose glycolate, 0.9% tripoly phosphate sodium STPP, the mixed slurry preparing is carried out to ball milling, sieve, dry powder process is standby.The base substrate of compression moulding after drying, enters sintering in heating installation, and firing temperature is 1150 ℃.The ultimate compression strength of burning till rear goods is 169MPa, and bending strength is 61.07MPa, microhardness 5.76GPa.
Embodiment 5
Preparation process is with described in embodiment 1.Directly at water ratio 85%, it is in 1.0% slurry that 250 mesh sieves tail over, and adds clay, agalmatolite, quartz, feldspar, and each component proportion is: pug (being converted into butt) 5%, clay 35%, feldspar 25%, agalmatolite 27%, quartzy 8%, and add 0.3% sodium cellulose glycolate, 0.5% tripoly phosphate sodium STPP, the mixed slurry preparing is carried out to ball milling, sieve, dry powder process is standby.The base substrate of compression moulding after drying, enters sintering in heating installation, and firing temperature is 1160 ℃.The ultimate compression strength of burning till rear goods is 140MPa, and bending strength is 43.16MPa, microhardness 4.37GPa.
Embodiment 6
Preparation process is with described in embodiment 1.Directly at water ratio 45%, it is in 2.3% slurry that 250 mesh sieves tail over, and adds clay, agalmatolite, quartz, feldspar, and each component proportion is: pug (being converted into butt) 68%, clay 14%, feldspar 8%, agalmatolite 9.5%, quartzy 0.5%, and add 0.1% sodium cellulose glycolate, 0.9% tripoly phosphate sodium STPP, the mixed slurry preparing is carried out to ball milling, sieve, dry powder process is standby.The base substrate of compression moulding after drying, enters sintering in heating installation, and firing temperature is 1165 ℃.The ultimate compression strength of burning till rear goods is 138MPa, and bending strength is 48.77MPa, microhardness 4.78GPa.

Claims (1)

1. a stupalith preparation method who utilizes slag wet magnetic separation tail mud, it is characterized in that: raw material is that tail mud, clay, agalmatolite, feldspar, the quartz after irony reclaimed in steel mill's magnetic separation, the siccative of each raw material accounts for total mixture quality per-cent and is respectively: tail mud 5~68%, feldspar 7~25%, agalmatolite 5~30%, clay 15~35%, quartz 0.1~8%, and add 0.01~0.5% toughener, 0.1~1% liquefactent; Tail mud pellet degree is that 250 mesh sieves tail over 0.1%~10%, and tail mud water ratio is 50~75%; Raw material is added in proportion and in ball mill, carries out grinding and mix, and raw material grinding in ball mill mixes to 250 mesh sieves and tails over and be less than 1%; Mixing raw material, by drying-granulating and compression moulding technique, or is made to desired shape by mixing raw material by extruding shaping technique, at 1100~1250 ℃, fire acquisition ceramic after the ceramic body after moulding is entered to kiln.
CN201210276443.4A 2012-08-03 2012-08-03 Method for preparing ceramic material utilizing magnetic separation tail sludge from steel slag wet process Active CN102765931B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210276443.4A CN102765931B (en) 2012-08-03 2012-08-03 Method for preparing ceramic material utilizing magnetic separation tail sludge from steel slag wet process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210276443.4A CN102765931B (en) 2012-08-03 2012-08-03 Method for preparing ceramic material utilizing magnetic separation tail sludge from steel slag wet process

Publications (2)

Publication Number Publication Date
CN102765931A CN102765931A (en) 2012-11-07
CN102765931B true CN102765931B (en) 2014-03-26

Family

ID=47093544

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201210276443.4A Active CN102765931B (en) 2012-08-03 2012-08-03 Method for preparing ceramic material utilizing magnetic separation tail sludge from steel slag wet process

Country Status (1)

Country Link
CN (1) CN102765931B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103992096B (en) * 2013-02-18 2015-07-01 福建省乐普陶板制造有限公司 Recyclable multichannel ceramic floor tile
CN104630613B (en) * 2015-02-16 2017-08-25 濮训春 Enhanced base steel material of alumina composite ceramic and preparation method thereof
CN105541296B (en) * 2015-12-29 2018-06-29 江西省科学院能源研究所 A kind of method that ceramic material is prepared using copper tailing
CN106278179A (en) * 2016-08-11 2017-01-04 武汉钢铁股份有限公司 The resource utilization method of converter slag washing ball milling mud
CN110582584A (en) * 2017-02-22 2019-12-17 哈利法科技大学 Processing of advanced ceramics made from recycled industrial steel waste
CN112679195A (en) * 2020-12-29 2021-04-20 咸阳陶瓷研究设计院有限公司 Black road brick prepared from steel slag and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1966456A (en) * 2005-11-20 2007-05-23 苏国干 Utilization of waste slag of steel and iron factory as construction ceramic material
CN101386528A (en) * 2008-10-27 2009-03-18 佛山欧神诺陶瓷股份有限公司 Method for producing ceramic tile by metallurgical steel slag
CN101544479A (en) * 2009-04-28 2009-09-30 莱芜钢铁集团有限公司 Compound active powder of ball milling steel slag tailing slurry and blast-furnace slag and application of compound active powder in preparing concrete
CN102351559A (en) * 2011-08-22 2012-02-15 中山建华墙体材料有限公司 Haydite and preparation method thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1966456A (en) * 2005-11-20 2007-05-23 苏国干 Utilization of waste slag of steel and iron factory as construction ceramic material
CN101386528A (en) * 2008-10-27 2009-03-18 佛山欧神诺陶瓷股份有限公司 Method for producing ceramic tile by metallurgical steel slag
CN101544479A (en) * 2009-04-28 2009-09-30 莱芜钢铁集团有限公司 Compound active powder of ball milling steel slag tailing slurry and blast-furnace slag and application of compound active powder in preparing concrete
CN102351559A (en) * 2011-08-22 2012-02-15 中山建华墙体材料有限公司 Haydite and preparation method thereof

Also Published As

Publication number Publication date
CN102765931A (en) 2012-11-07

Similar Documents

Publication Publication Date Title
CN102765931B (en) Method for preparing ceramic material utilizing magnetic separation tail sludge from steel slag wet process
CN103570340B (en) Architectural ceramic prepared from industrial solid waste through dry method and process for preparing architectural ceramic
CN102424550B (en) Laterite slag baking-free brick and preparation method thereof
CN102826827B (en) A kind of with ceramic polished slag be major ingredient sintering pitchers brick and production method thereof
CN100361921C (en) High-strength sintered brick and production method
CN103819176A (en) Preparation technology of low-cost high-strength ceramic floor tile
CN103159483B (en) Industrial waste slag haycite and preparation method thereof
CN103819211B (en) CFBB lightweight wear-resistant plastic refractory and preparation method thereof
CN102010211B (en) Method for producing alumina mullite homogenizing material
CN101172790A (en) Novel technique for producing concrete by using hygroscopic state sewage sludge waste slag B grade mixture material
CN101767972A (en) Mine tailing sand brick and preparation method thereof
CN104556866B (en) A kind of mine tailing stone flour wet-mixing motar
CN106045477A (en) Preparation method of ferronickel residue sintered water-permeable bricks
CN103641402A (en) Baking-free brick prepared from red mud
CN103408277A (en) Nickel slag brick and preparation method thereof
CN101684675B (en) Autoclaved phosphogypsum brick and method for preparing same
CN101182138A (en) Steel slag property optimized handling method
CN102898160B (en) Preparation method for regenerated chromium and zirconium corundum brick
CN101786288B (en) Method for preparing split bricks by utilizing tailings of high phosphorus hematite
CN102659421A (en) Production method of mullite cast steel brick
CN110183120B (en) Method for producing cement active admixture by using undisturbed electrolytic manganese slag and steel slag tail mud
CN104016601A (en) Method for producing cement cementing material through industrial waste residue sludge
CN102659360B (en) Iron tailing steam curing brick and preparation method thereof
CN107857567A (en) It is a kind of to utilize ceramic tile blank of shraff manufacture and preparation method thereof
CN103387348B (en) Method for preparing cement by utilizing oil shale ash

Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
C10 Entry into substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20201228

Address after: 064400 5th floor, block a, 866 Gangcheng street, Qian'an City, Tangshan City, Hebei Province

Patentee after: Beijing Tianjin Hebei Steel Union Qian'an Environmental Technology Co.,Ltd.

Address before: 100083 No. 30, Haidian District, Beijing, Xueyuan Road

Patentee before: University OF SCIENCE AND TECHNOLOGY BEIJING

TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20210720

Address after: 064400 Mu Chang Kou Zhen song Ting Cun, Qian'an City, Tangshan City, Hebei Province

Patentee after: Qian'an Jinyu Shougang Environmental Protection Technology Co.,Ltd.

Address before: 064400 5th floor, block a, 866 Gangcheng street, Qian'an City, Tangshan City, Hebei Province

Patentee before: Beijing Tianjin Hebei Steel Union Qian'an Environmental Technology Co.,Ltd.

TR01 Transfer of patent right