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 PDFInfo
- 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 material
- tail
- magnetic separation
- ceramic
- 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
Links
Classifications
-
- 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
- Y02P40/60—Production 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
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.
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)
| 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 |
| EP3585911A4 (en) * | 2017-02-22 | 2021-04-07 | Khalifa University of Science and Technology | Elaboration of an advanced ceramic made of 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)
| 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 |
-
2012
- 2012-08-03 CN CN201210276443.4A patent/CN102765931B/en active Active
Patent Citations (4)
| 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 |
|---|---|---|
| CN103570340B (en) | Architectural ceramic prepared from industrial solid waste through dry method and process for preparing architectural ceramic | |
| CN102765931B (en) | Method for preparing ceramic material utilizing magnetic separation tail sludge from steel slag wet process | |
| CN101767972B (en) | Mine tailing sand brick and preparation method thereof | |
| CN102424550B (en) | Laterite slag baking-free brick and preparation method thereof | |
| CN100361921C (en) | High-strength sintered brick and production method | |
| CN102826827B (en) | A kind of with ceramic polished slag be major ingredient sintering pitchers brick and production method thereof | |
| CN104556866B (en) | A kind of mine tailing stone flour wet-mixing motar | |
| CN103159483B (en) | Industrial waste slag haycite and preparation method thereof | |
| CN102010211B (en) | Method for producing alumina mullite homogenizing material | |
| CN103819211B (en) | CFBB lightweight wear-resistant plastic refractory and preparation method thereof | |
| CN101172790A (en) | Novel technique for producing concrete by using hygroscopic state sewage sludge waste slag B grade mixture material | |
| CN103819176A (en) | Preparation technology of low-cost high-strength ceramic floor tile | |
| CN102898160B (en) | Preparation method for regenerated chromium and zirconium corundum brick | |
| 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 | |
| CN110183120B (en) | Method for producing cement active admixture by using undisturbed electrolytic manganese slag and steel slag tail mud | |
| CN102659421A (en) | Production method of mullite cast steel brick | |
| CN106938938B (en) | It is a kind of using powder as the preparation method of the ceramic water-permeable brick of raw material and its product obtained | |
| CN101786288B (en) | Method for preparing split bricks by utilizing tailings of high phosphorus hematite | |
| CN104016601A (en) | Method for producing cement cementing material through industrial waste residue sludge | |
| CN104072161B (en) | After a kind of magnesite choosing, mine tailing prepares the method for calcium magnesia sand | |
| CN106495623B (en) | A method of steam-pressing brisk is prepared using molybdic tailing | |
| CN100418924C (en) | Method for preparing Ca-alpha-SiAlON material using iron selection tailings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| 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. |