CN103451440B - Method of recycling high titanium slag smelting reduction smoke dust and screened fine coal - Google Patents
Method of recycling high titanium slag smelting reduction smoke dust and screened fine coal Download PDFInfo
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- CN103451440B CN103451440B CN201310391629.9A CN201310391629A CN103451440B CN 103451440 B CN103451440 B CN 103451440B CN 201310391629 A CN201310391629 A CN 201310391629A CN 103451440 B CN103451440 B CN 103451440B
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- titanium slag
- pelletizing
- duff
- screening
- flue dust
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Abstract
The invention claims a method of recycling high titanium slag smelting reduction smoke dust and screened fine coal, and the method comprises the following steps: uniformly mixing high titanium slag smelting reduction smoke dust, screened fine coal, a binder and water to obtain a mixture; adding the mixture to a pellet granulator, adjusting the roller spacing and pressure of the pellet granulator to produce high titanium slag coal dust pellets, and then adding the dried pellets to a high titanium slag smelting electric furnace so as to serve as reducing agents and recycling the titanium and valuable metals therein. The method is simply operated, practical, safe and environment-friendly and low in production cost, and can be used for effectively and comprehensively recycling the titanium and valuable metals from the high titanium slag smoke dust and realizing resource recycling of the fine coal screened by using the high titanium slag smelting reducing agents.
Description
Technical field
The invention belongs to nonferrous metallurgy melting Comprehensive Recovery Technology field, be specifically related to a kind of titanium slag smelting reducing flue dust and screening duff recoverying and utilizing method.
Background technology
Produce the reduction flue dust of titanium slag output mainly containing TiO
2, Fe, SiO
2, MnO, Cr
2o
3deng element, and containing TiO
225 ~ 50%, there is higher recovery value, at present, the comprehensive utilization recovery method that the reduction flue dust of major part titanium smelting enterprise to titanium slag smelting output is not good, titanium slag reduction flue dust can only be stored up, because reduction smoke granularity is thinner, environmental pollution can be brought while causing metal loss; What screening duff belonged to that high-titanium slag smelting reductive agent sieves out be less than 3mm directly can not add the coal of metallurgical stove as reductive agent, and duff is usually outer sells or burning boiler in screening, can not obtain the utilization of economical and efficient.For this reason, the economical and efficient Application way tool developing a kind of titanium slag smelting reducing flue dust and screening duff is of great significance.
Summary of the invention
The object of the present invention is to provide the Application way of the economical and efficient of a kind of titanium slag smelting reducing flue dust and screening duff.
The object of the present invention is achieved like this, and the method that titanium slag smelting reducing flue dust is recycled with screening duff comprises the following steps:
A, by titanium slag smelting reducing flue dust, screening duff, binding agent and water 30 ~ 60:60 by weight proportion ~ 30:1 ~ 10:5 ~ 15 mix, obtain mixture; Titanium slag reduction flue dust is containing TiO
225 ~ 50%, screening duff is less than 3mm containing C 80 ~ 89%, granularity; Binding agent is the mixture of coal briquette type binding agent GY, hard pitch and NaOH, and part by weight is 20 ~ 60:60 ~ 20:10 ~ 20;
B, mixture is joined in pelletizing nodulizer, the spacing of adjustment pelletizing nodulizer roller and roller pressure, output titanium slag coal dust pelletizing, join titanium slag electric furnace after oven dry as reductive agent and synthetical recovery titanium wherein and valuable metal thereof.
Titanium slag smelting reducing flue dust and screening duff can be granulated agglomerating by the present invention continuously, and tool has the following advantages and positively effect:
1, the present invention is that continuous uniform feeds in raw material, and treatment capacity is large, and production efficiency is high, TiO
2comprehensive recovery is high, and production cost is low.
2, equipment of the present invention is simple, and easy handling controls; Good airproof performance, reduces environmental stress; To the strong adaptability of raw material, the raw material of heterogeneity and proportioning can be processed; Energy consumption is low; Add Production Gain.
3, the binding agent in batching is GY, hard pitch and NaOH, and it can organically combine with the element in material, can improve cold strength and the hot strength of granulation pelletizing, meet the intensity technique requirement of titanium slag to reductive agent.
4, synthetical recovery effect of the present invention is better, is a kind of effective way solving titanium slag smelting reducing flue dust and the rear reductive agent duff recycling of titanium slag smelting screening.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but limited the present invention never in any form, based on any conversion that training centre of the present invention is done, all falls into scope.
The present invention titanium slag smelting reducing flue dust and screening duff are recycled, and comprise the following steps:
A, by titanium slag smelting reducing flue dust, screening duff, binding agent and water mix, obtain mixture;
B, mixture is joined in pelletizing nodulizer, the spacing of adjustment pelletizing nodulizer roller and roller pressure, output titanium slag coal dust pelletizing, join titanium slag electric furnace after oven dry as reductive agent and the titanium reclaimed wherein and valuable metal thereof.
Described titanium slag reduction flue dust is containing TiO
225 ~ 50%, duff is containing C 80 ~ 89%.
In described step A, binding agent is the mixture of coal briquette type binding agent GY, hard pitch and industrial NaOH, and part by weight is 20 ~ 60:60 ~ 20:10 ~ 20.
In described step A, the part by weight of titanium slag smelting reducing flue dust, screening duff, binding agent and water is 30 ~ 60:60 ~ 30:1 ~ 10:5 ~ 15.
In described step B, mixture adds pelletizing nodulizer is that continuous uniform feeds in raw material, and feed rate is 5 ~ 15t/h.
Pelletizing nodulizer in described step B is made up of mixing of materials stirring system, granulating system.
Embodiment 1
A, by titanium slag smelting reducing flue dust, screening duff, binding agent (coal briquette type binding agent GY, hard pitch and NaOH weight ratio are 20:60:20) and water by weight 30:60:1:9 obtain material after mixing;
B, the material that a step obtains is joined in pelletizing nodulizer; the spacing of adjustment pelletizing nodulizer roller and roller pressure; produce titanium slag coal dust pelletizing; after Belt Conveying is dried to dry drying shed, join titanium slag electric furnace as reductive agent and the titanium reclaimed wherein and valuable metal thereof.The pelletizing of output is containing TiO
220.4%, C 54.1%, TiO
2direct yield 97.8%, the C rate of recovery 98%.
Embodiment 2
A, by titanium slag smelting reducing flue dust, screening duff, binding agent (coal briquette type binding agent GY, hard pitch and NaOH weight ratio are 30:50:20) and water by weight 35:52:3:10 obtain material after mixing;
B, the material that a step obtains is joined in pelletizing nodulizer; the spacing of adjustment pelletizing nodulizer roller and roller pressure; produce titanium slag coal dust pelletizing; after Belt Conveying is dried to dry drying shed, join titanium slag electric furnace as reductive agent and the titanium reclaimed wherein and valuable metal thereof.The pelletizing of output is containing TiO
223.6%, C 47.4%, TiO
2direct yield 98.5%, the C rate of recovery 99%.
Embodiment 3
A, by titanium slag smelting reducing flue dust, screening duff, binding agent (coal briquette type binding agent GY, hard pitch and NaOH weight ratio are 40:50:10) and water by weight 45:45:1:9 obtain material after mixing;
B, the material that a step obtains is joined in pelletizing nodulizer; the spacing of adjustment pelletizing nodulizer roller and roller pressure; produce titanium slag coal dust pelletizing; after Belt Conveying is dried to dry drying shed, join titanium slag electric furnace as reductive agent and the titanium reclaimed wherein and valuable metal thereof.The pelletizing of output is containing TiO
226.2%, C 42.4%, TiO
2direct yield 98.8%, the C rate of recovery 99.2%.
Embodiment 4
A, by titanium slag smelting reducing flue dust, screening duff, binding agent (coal briquette type binding agent GY, hard pitch and NaOH weight ratio are 30:50:20) and water by weight 50:35:3:12 obtain material after mixing;
B, the material that a step obtains is joined in pelletizing nodulizer; the spacing of adjustment pelletizing nodulizer roller and roller pressure; produce titanium slag coal dust pelletizing; after Belt Conveying is dried to dry drying shed, join titanium slag electric furnace as reductive agent and the titanium reclaimed wherein and valuable metal thereof.The pelletizing of output is containing TiO
227.9%, C32.1%, TiO
2direct yield 98.9%, the C rate of recovery 99.3%.
Embodiment 5
A, by titanium slag smelting reducing flue dust, screening duff, binding agent (coal briquette type binding agent GY, hard pitch and NaOH weight ratio are 30:50:20) and water by weight 60:29:1:10 obtain material after mixing;
B, the material that a step obtains is joined in pelletizing nodulizer; the spacing of adjustment pelletizing nodulizer roller and roller pressure; produce titanium slag coal dust pelletizing; after Belt Conveying is dried to dry drying shed, join titanium slag electric furnace as reductive agent and the titanium reclaimed wherein and valuable metal thereof.The pelletizing of output is containing TiO
229.9%, C 28.8%, TiO
2direct yield 99.1%, the C rate of recovery 99.4%.
Claims (3)
1. titanium slag smelting reducing flue dust and the method recycled of screening duff, is characterized in that comprising the following steps:
A, by titanium slag smelting reducing flue dust, screening duff, binding agent and water 30 ~ 60:60 by weight proportion ~ 30:1 ~ 10:5 ~ 15 mix, obtain mixture; Titanium slag reduction flue dust is containing TiO
225 ~ 50%, screening duff is less than 3mm containing C 80 ~ 89%, granularity; Binding agent is the mixture of coal briquette type binding agent GY, hard pitch and NaOH, and part by weight is 20 ~ 60:60 ~ 20:10 ~ 20;
B, mixture is joined in pelletizing nodulizer, the spacing of adjustment pelletizing nodulizer roller and roller pressure, output titanium slag coal dust pelletizing, join titanium slag electric furnace after oven dry as reductive agent and synthetical recovery titanium wherein and valuable metal thereof.
2. titanium slag smelting reducing flue dust according to claim 1 and the method recycled of screening duff, it is characterized in that in described step B that mixture adds pelletizing nodulizer is that continuous uniform is reinforced, and feed rate is 5 ~ 15t/h.
3. titanium slag smelting reducing flue dust according to claim 1 and the method recycled of screening duff, is characterized in that the pelletizing nodulizer in described step B is made up of mixing of materials stirring system, granulating system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310391629.9A CN103451440B (en) | 2013-09-02 | 2013-09-02 | Method of recycling high titanium slag smelting reduction smoke dust and screened fine coal |
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|---|---|---|---|
| CN201310391629.9A CN103451440B (en) | 2013-09-02 | 2013-09-02 | Method of recycling high titanium slag smelting reduction smoke dust and screened fine coal |
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|---|---|
| CN103451440A CN103451440A (en) | 2013-12-18 |
| CN103451440B true CN103451440B (en) | 2015-03-25 |
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| CN104789759A (en) * | 2014-01-16 | 2015-07-22 | 河南省远征冶金科技有限公司 | Metallurgical iron-containing powder material resource utilization method |
| CN106086479B (en) * | 2016-07-28 | 2019-03-05 | 陕西大山机械有限公司 | The device and its extracting method of high titanium slag and iron oxide red are extracted in titaniferous tailing |
| CN107119198A (en) * | 2017-04-28 | 2017-09-01 | 攀钢集团研究院有限公司 | Titanium slag electric furnace dust-removing powder recoverying and utilizing method |
| CN109385533A (en) * | 2018-10-22 | 2019-02-26 | 攀钢集团攀枝花钢铁研究院有限公司 | The recoverying and utilizing method of titanium slag dedusting ash |
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| CN103101969B (en) * | 2013-03-12 | 2014-06-18 | 中航天赫（唐山）钛业有限公司 | Method and equipment for increasing utilization ratio of raw materials for producing titanium tetrachloride |
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Address after: 650031 No. 86 Yuantong North Road, Yunnan, Kunming Patentee after: Kunming Metallurgical Research Institute Co., Ltd Address before: 650031 No. 86 Yuantong North Road, Yunnan, Kunming Patentee before: Kunming Metallurgical Research Institute |
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