CN103243216B - Sintering ore and production method thereof - Google Patents
Sintering ore and production method thereof Download PDFInfo
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- CN103243216B CN103243216B CN201310197214.8A CN201310197214A CN103243216B CN 103243216 B CN103243216 B CN 103243216B CN 201310197214 A CN201310197214 A CN 201310197214A CN 103243216 B CN103243216 B CN 103243216B
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- sintering deposit
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Abstract
The invention provides a sintering ore and a production method thereof. The production method comprises the following steps of: mixing the following materials in parts by weight to form a mixture: 55-60 parts of ilmenite powder containing vanadium, 1-3 parts of vanadium extraction tailings, 3-5 parts of blast furnace gas ash, 4-7 parts of limestone, 5-7 parts of coke powder, 9-23 parts of Australian ores and 4-6 parts of active lime; and putting the mixture into a sintering machine, and sintering the mixture at a sintering ignition temperature of 1050-1200 DEG C to prepare the sintering ore. The sintering ore consists of the following components in percentage by weight: not less than 49.5% of TFe, 5-8% of SiO2, 9-12% of CaO, 2-4% of MgO, 5-8% of TiO2 and 0-1% of V2O5, and the alkalinity of the sintering ore is 1.8-2.1. The production method has the advantage that the sintering ore can be prepared by effectively using solid wastes namely the vanadium extraction tailings during the production of vanadium products on the basis of ensuring that the grade of the sintering ore is not lowered.
Description
Technical field
The present invention relates to metallurgical industry solid waste resource recovery and utilize technology, specifically, relate to a kind of sintering deposit and the production method thereof that utilize tailings in vanadium extraction, belong to metallurgical and field of Environment Protection.
Background technology
China is vanadium and titanium resources big country, and the utilization of vanadium is generally oxide vanadium slag being produced vanadium through processes such as ball milling, roasting, leachings, then carries out the production of follow-up vanadium goods.Can produce solid waste-tailings in vanadium extraction in the production process of barium oxide, in tailings in vanadium extraction, TFe reaches about 30%, containing SiO
216% ~ 19%, also have a certain amount of MnO simultaneously, the more important thing is wherein also containing V
5+, Cr
6+in the ion of meeting to environment, if not being used, adverse effect is brought to the sustainable development of steel and iron industry.Therefore, the recycling of tailings in vanadium extraction is significant for the sustainable development alleviating carrying capacity of environment and metallurgical industry.
Publication number be CN102849968A patent document discloses a kind of method that tailings in vanadium extraction prepares Portland clinker.
Publication number is the processing method that patent document discloses a kind of tailings in vanadium extraction of CN101280361A, and the method comprising the steps of: a) mixed with carbon source by tailings in vanadium extraction and obtain mixture, heats described mixture and makes it carry out reduction reaction; B) reduzate step a) obtained carries out separation through magnetic method and obtains Magnaglo and nonmagnetic powder.
Be disclosed as the process that patent document discloses a kind of directly producing sponge iron by carrying out deep reduction on extracted vanadium tailings of CN101713007A, the method adopts brown coal to be reducing agent, and add CaO increases basicity as slag former simultaneously and work in coordination with Na in tailings simultaneously
2o, K
2o and SiO
2, Al
2o
3reaction generates the resistant mineral of class zeolite, promotes the Extraction and separation of sponge iron in drastic reduction product, and drastic reduction product, through secondary grinding-two sections of weak magnetic separation process process, can obtain Iron grade and be greater than the sponge iron that 90%, TiO2 is less than 0.20%.
Publication number be CN102337444A patent document discloses a kind of technology for producing vanadium chromium manganese alloyed pig iron by melting vanadium extraction tailings, tailings in vanadium extraction powder is made the feed particles of granularity 5-150 millimeter by this technique, as smelting furnace raw material; Feed particles refers to sintering deposit, cooled agglomerated pellet (block), metallized pellet (block); Feed particles and coke, ilmenite (block or pelletizing), lime stone, dolomite and fluorite are prepared burden, obtains the alloy pig iron containing vanadium chromium manganese by smelting furnace melting.
Publication number is that patent document discloses of CN102251119A a kind ofly reclaims the method for vanadium by tailings in vanadium extraction, tailings in vanadium extraction and water and NaOH join in reactor by the method to be decomposed, then the reaction paste water obtained or low-concentration alkali liquor dilution are obtained mixed slurry; Filter mixed slurry at 80 ~ 130 DEG C, obtain the aqueous solution containing NaOH, sodium vanadate and sodium metasilicate, carry out desiliconization process with desiliconization agent to this solution, after desiliconization, liquid obtains vanadate through natural cold crystallization.
Summary of the invention
The object of the present invention is to provide a kind of method effectively utilizing tailings in vanadium extraction.
Such as, an object of the present invention is to provide a kind of tailings in vanadium extraction that can effectively utilize to produce the method for sintering deposit.
An aspect of of the present present invention provides a kind of production method of sintering deposit, described production method comprises the following steps of carrying out successively: the active lime containing sefstromite powder, the tailings in vanadium extraction of 1 ~ 3 part, the blast furnace dust of 3 ~ 5 parts, the lime stone of 4 ~ 7 parts, the coke powder of 5 ~ 7 parts, the Australia ore deposit of 9 ~ 13 parts and 4 ~ 6 parts of 55 ~ 60 parts is by weight carried out batch mixing, forms compound; Compound is arranged in sintering machine, sinters with the sintering ignition temperature of 1050 ~ 1200 DEG C, obtained sintering deposit.
An aspect of of the present present invention provides a kind of sintering deposit, and described sintering deposit is obtained by said method, and its composition is by weight percentage by being not less than the TFe of 49.5%, the SiO of 5% ~ 8%
2, 9% ~ 12% CaO, the MgO of 2% ~ 4%, the TiO of 5% ~ 8%
2, 0% ~ 1% V
2o
5composition, and its basicity is 1.8 ~ 2.1.
Compared with prior art; beneficial effect of the present invention comprises: can ensure on the basis that grade of sinter does not decline; effectively utilize solid waste in vanadium production of articles (namely; tailings in vanadium extraction) obtained sintering deposit; so both protect nature mineral resources; widen again the recycling approach containing vanadium discarded object, achieve tailings in vanadium extraction recycling in iron and steel flow process inside.
Detailed description of the invention
Hereinafter, sintering deposit of the present invention and production method thereof will be described in detail in conjunction with exemplary embodiment.
The production method of sintering deposit according to an aspect of the present invention comprises the following steps of carrying out successively: the active lime containing sefstromite powder, the tailings in vanadium extraction of 1 ~ 3 part, the blast furnace dust of 3 ~ 5 parts, the lime stone of 4 ~ 7 parts, the coke powder of 5 ~ 7 parts, the Australia ore deposit of 9 ~ 23 parts and 4 ~ 6 parts of 55 ~ 60 parts is by weight carried out batch mixing, forms compound; Compound is arranged in sintering machine, sinters with the sintering ignition temperature of 1050 ~ 1200 DEG C, obtained sintering deposit.
Preferably, in the step of described formation compound, tailings in vanadium extraction accounts for 1.5 ~ 2.5 parts.Here, described tailings in vanadium extraction is the solid waste after adopting vanadium slag to produce vanadium goods, wherein contains the TFe of more than the 35% and TiO of more than 12% by weight percentage
2.
Preferably, described sintering ignition temperature is 1100 ~ 1150 DEG C.
Sintering deposit is according to a further aspect of the invention obtained by said method, and the composition of described sintering deposit is by weight percentage by being not less than the TFe of 49.5%, the SiO of 5% ~ 8%
2, 9% ~ 12% CaO, the MgO of 2% ~ 4%, the TiO of 5% ~ 8%
2, 0% ~ 1% V
2o
5composition, its basicity R is 1.8 ~ 2.1.
Preferably, the composition of described sintering deposit is by weight percentage by being not less than the TFe of 51%, the SiO of 6% ~ 7%
2, 10% ~ 11% CaO, the MgO of 2.5% ~ 3.5%, the TiO of 6% ~ 7.5%
2, 0.5% ~ 1% V
2o
5composition.
In the method for the invention, can be sefstromite concentrate containing sefstromite powder, its full iron (TFe) content can for being not less than 54wt%.Australia ore deposit is the Australian iron ore concentrate of import, and its all iron content is 58 ~ 65wt%.
In sum; method of the present invention can ensure on the basis that grade of sinter does not decline; effectively utilize solid waste in vanadium production of articles (namely; tailings in vanadium extraction) obtained sintering deposit; so both protect nature mineral resources; widen again the recycling approach containing vanadium discarded object, achieve tailings in vanadium extraction recycling in iron and steel flow process inside.
In another exemplary embodiment of the present invention, sinter production method of the present invention realizes in the following manner: to contain sefstromite powder, tailings in vanadium extraction, blast furnace dust, lime stone, coke powder and active lime as raw material, first raw material is got the raw materials ready and batch mixing on request, again the raw material mixed is transported in sintering machine and carry out igniting sintering, after having sintered, obtain sintering deposit.The composition of sintering deposit is: TFe>49.5%, SiO
25% ~ 8%, CaO9% ~ 12%, MgO2% ~ 4%, TiO
25% ~ 8%, V
2o
50% ~ 1%, R1.8 ~ 2.1.Wherein, coke powder ratio is: 5% ~ 7%, and the ratio of tailings in vanadium extraction is 1% ~ 3%, containing the ratio >55% of sefstromite powder, and sintering ignition temperature: 1050 ~ 1200 DEG C.
Exemplary embodiment of the present invention is further illustrated below in conjunction with concrete example.Following example only in order to explain the present invention better, and is not for limiting the present invention.
Example 1
By 58 parts containing sefstromite powder, 2 parts of tailings in vanadium extraction, 2 parts of blast furnace dusts, 6 parts of lime stones, 5 parts of coke powders, 21 parts of Australia ore deposits and 6 parts of active limes by raw material by getting the raw materials ready and batch mixing, again the raw material mixed is transported in sintering machine and carry out igniting sintering, firing temperature 1050 DEG C, obtains sintering deposit after having sintered.The composition of sintering deposit is: TFe49.72wt%, SiO
25.00wt%, CaO10.46wt%, MgO2.80wt%, TiO
27.06wt%, V
2o
50.53wt%, R are 2.01.
Example 2
By 60 parts containing sefstromite powder, 3 parts of tailings in vanadium extraction, 3 parts of blast furnace dusts, 5 parts of lime stones, 7 parts of coke powders, 17 parts of Australia ore deposits and 5 parts of active limes by raw material by getting the raw materials ready and batch mixing, again the raw material mixed is transported in sintering machine and carry out igniting sintering, firing temperature 1200 DEG C, obtains sintering deposit after having sintered.The composition of sintering deposit is: TFe50.03wt%, SiO
25.32wt%, CaO9.68wt%, MgO3.01wt%, TiO
27.49wt%, V
2o
50.57wt%, R are 1.82.
Example 3
By 55 parts containing sefstromite powder, 2 parts of tailings in vanadium extraction, 5 parts of blast furnace dusts, 7 parts of lime stones, 7 parts of coke powders, 20 parts of Australia ore deposits and 4 parts of active limes by raw material by getting the raw materials ready and batch mixing, again the raw material mixed is transported in sintering machine and carry out igniting sintering, firing temperature 1130 DEG C, obtains sintering deposit after having sintered.The composition of sintering deposit is: TFe50.96wt%, SiO
24.88wt%, CaO9.97wt%, MgO2.61wt%, TiO
26.75wt%, V
2o
50.49wt%, R are 2.04.
Although describe the present invention in conjunction with exemplary embodiment above, those of ordinary skill in the art should be clear, when not departing from the spirit and scope of claim, can carry out various amendment to above-described embodiment.
Claims (5)
1. a production method for sintering deposit, is characterized in that, described production method comprises the following steps of carrying out successively:
The active lime containing sefstromite powder, the tailings in vanadium extraction of 1 ~ 3 part, the blast furnace dust of 3 ~ 5 parts, the lime stone of 4 ~ 7 parts, the coke powder of 5 ~ 7 parts, the Australia ore deposit of 9 ~ 23 parts and 4 ~ 6 parts of 55 ~ 60 parts is by weight carried out batch mixing, form compound, wherein, described tailings in vanadium extraction is the solid waste after adopting vanadium slag to produce vanadium goods, and described tailings in vanadium extraction contains the TFe of more than the 35% and TiO of more than 12% by weight percentage
2;
Compound is arranged in sintering machine, sinters with the sintering ignition temperature of 1050 ~ 1200 DEG C, obtained sintering deposit.
2. the production method of sintering deposit according to claim 1, is characterized in that, in the step of described formation compound, tailings in vanadium extraction accounts for 1.5 ~ 2.5 parts.
3. the production method of sintering deposit according to claim 1, is characterized in that, described sintering ignition temperature is 1100 ~ 1150 DEG C.
4. adopt the sintering deposit that production method in claims 1 to 3 described in any one is obtained, it is characterized in that, the composition of described sintering deposit by weight percentage by ferriferous oxide, 5% ~ 8% SiO
2, 9% ~ 12% CaO, the MgO of 2% ~ 4%, the TiO of 5% ~ 8%
2, 0% ~ 1% V
2o
5composition, and the basicity of described sintering deposit is 1.8 ~ 2.1, and in described sintering deposit, TFe is not less than 49.5%.
5. sintering deposit according to claim 4, is characterized in that, the composition of described sintering deposit by weight percentage by ferriferous oxide, 6% ~ 7% SiO
2, 10% ~ 11% CaO, the MgO of 2.5% ~ 3.5%, the TiO of 6% ~ 7.5%
2, 0.5% ~ 1% V
2o
5composition, and in described sintering deposit, TFe is not less than 51%.
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104263911B (en) * | 2014-09-28 | 2016-08-17 | 四川德胜集团钒钛有限公司 | The preparation method of sintering ore of vanadium-titanium magnetite ore |
| CN104480299B (en) * | 2015-01-14 | 2017-04-12 | 东北大学 | Method for preparing sintered ores by adding waste slag to chromium-containing-type vanadium-titanium magnetite concentrates |
| CN104694743B (en) * | 2015-03-31 | 2017-05-03 | 攀钢集团攀枝花钢铁研究院有限公司 | Vanadium tailings large-scale utilization and production method |
| CN104946884A (en) * | 2015-06-08 | 2015-09-30 | 河北钢铁股份有限公司承德分公司 | Method for preparing vanadium-titanium sinter through ferrovanadium furnace slag |
| CN105238893B (en) * | 2015-11-02 | 2017-10-31 | 河北钢铁股份有限公司承德分公司 | A kind of method that solid waste containing vanadium sinters blast furnace ironmaking with ore deposit |
| CN107739849B (en) * | 2017-11-05 | 2019-10-25 | 东莞材料基因高等理工研究院 | A kind of production technology of titanium ferroally powder |
| CN110669943B (en) * | 2019-09-27 | 2021-06-29 | 吉林省金源科技有限公司 | Method for smelting vanadium-rich pig iron from vanadium-containing steel slag and vanadium extraction tailings |
Citations (1)
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| CN103014323A (en) * | 2012-12-20 | 2013-04-03 | 攀钢集团攀枝花钢铁研究院有限公司 | Sintering method for high-grade vanadium titanium iron ore concentrate |
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| CN101519720B (en) * | 2009-04-17 | 2012-01-04 | 攀钢集团研究院有限公司 | Method for preparing high titania type high MgO sintering ore |
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| CN103014323A (en) * | 2012-12-20 | 2013-04-03 | 攀钢集团攀枝花钢铁研究院有限公司 | Sintering method for high-grade vanadium titanium iron ore concentrate |
Non-Patent Citations (1)
| Title |
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| 高炉消化提钒二次尾渣可行性分析;翁庆强等;《矿产综合利用》;20120630(第3期);第60页 * |
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Owner name: PANGANG GROUP XICHANG STEEL + VANADIUM CO., LTD. Effective date: 20140130 |
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Effective date of registration: 20140130 Address after: 617000 Taoyuan street, Panzhihua, Sichuan, No. 90 Applicant after: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. Applicant after: Pangang Group Xichang Steel & Vanadium Co., Ltd. Address before: 617000 Taoyuan street, Panzhihua, Sichuan, No. 90 Applicant before: Pangang Group Panzhihua Iron & Steel Research Institute Co., Ltd. |
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