CN1605407A - Method for recovering chromite from cast waste sand - Google Patents
Method for recovering chromite from cast waste sand Download PDFInfo
- Publication number
- CN1605407A CN1605407A CN 200410077929 CN200410077929A CN1605407A CN 1605407 A CN1605407 A CN 1605407A CN 200410077929 CN200410077929 CN 200410077929 CN 200410077929 A CN200410077929 A CN 200410077929A CN 1605407 A CN1605407 A CN 1605407A
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- chromite
- sand
- product
- cast waste
- waste sand
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Abstract
The present invention relates to mineral sorting technology, and is especially the process of recovering chromite from waste casting sand. Waste casting sand is crushed, sieved and depurated to obtain coarse chromite and quartzite product; and the coarse chromite is further sorted and high temperature roasted to eliminate organic matter in the surface of the chromite, washed, dewatered, stoved and packed to form the chromite product. The quartzite product may be used as the material for producing cement; and the sorting method may be electric one, magnetic one, water one, floating one, etc. The present invention can change waste into useful material and has stable technological process and good recovering effect.
Description
Technical field
The present invention relates to a kind of sorting mineral technology, especially a kind of method that from cast waste sand, reclaims chromite.
Background technology
Foundry enterprise will produce a large amount of antiquated sands in process of production, contain chromite in the antiquated sand that Diesel Engine Plant is produced when casting, owing to there is not sorting processing method preferably, the inserts that these antiquated sands generally are used as in the manufacture of cement reclaims, and the general dependence on import of the chromite of China, price is high.
Summary of the invention
The object of the present invention is to provide a kind of reliable and stable, recovering effect is good reclaims the method for chromite from cast waste sand.This method is that the antiquated sand that will form sand mo(u)ld after the casting sub-elects thicker chromite and quartz sand product behind fragmentation, screening decontamination, further select smart chromite, remove mineral surfaces organic matter, scouring, dehydration, dry and be packaged to be finished product through high-temperature roasting again, the quartz sand product can be used as cement producting material; Described method for separating can adopt methods such as electric separation, magnetic separation, wet concentration, flotation.The present invention has following beneficial effect: turn waste into wealth, process stabilizing is reliable, and recovering effect is good.
The specific embodiment
Below in conjunction with embodiment essentiality content of the present invention is described in further detail.
The antiquated sand that the casting back forms sand mo(u)ld is generally the solid block shape, and impurity is removed in its fragmentation, screening, sub-elects thicker chromite and quartz sand product, and the quartz sand product can be used as cement producting material.Chromite that will be thicker further sub-elects smart chromite, removes mineral surfaces organic matter, scouring, dehydration, dries and be packaged to be finished product through high-temperature roasting again.Described method for separating can adopt methods such as electric separation, magnetic separation, wet concentration, flotation.
Claims (2)
1. method that from cast waste sand, reclaims chromite, its characteristic is that it is that the antiquated sand that will form sand mo(u)ld after the casting sub-elects thicker chromite and quartz sand product behind fragmentation, screening decontamination, further select smart chromite, pass through high-temperature roasting, scouring, dehydration again, dry and be packaged to be finished product, the quartz sand product can be used as cement producting material.
2. the 1 described method that reclaims chromite from cast waste sand as requested, its characteristic is: described method for separating can adopt methods such as electric separation, magnetic separation, wet concentration, flotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410077929 CN1605407A (en) | 2004-09-20 | 2004-09-20 | Method for recovering chromite from cast waste sand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410077929 CN1605407A (en) | 2004-09-20 | 2004-09-20 | Method for recovering chromite from cast waste sand |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1605407A true CN1605407A (en) | 2005-04-13 |
Family
ID=34765449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410077929 Pending CN1605407A (en) | 2004-09-20 | 2004-09-20 | Method for recovering chromite from cast waste sand |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1605407A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101638730A (en) * | 2008-07-31 | 2010-02-03 | 塔塔钢铁有限公司 | Method for preparing sponge chromium from metallurgical-grade chromite concentrate fine powder |
| CN1978369B (en) * | 2005-12-08 | 2012-08-29 | 邢玉清 | Method for producing mineral admixture for high-strength high-performance concrete |
| CN106076589A (en) * | 2016-06-23 | 2016-11-09 | 含山县永帮再生资源利用有限公司 | A kind of method that cement raw material prepared by waste residue using casting automobile cylinder cover |
| CN106116188A (en) * | 2016-06-23 | 2016-11-16 | 含山县永帮再生资源利用有限公司 | A kind of method using casting waste residue to prepare cement |
| CN106111316A (en) * | 2016-06-23 | 2016-11-16 | 含山县永帮再生资源利用有限公司 | A kind of recoverying and utilizing method of the waste residue casting automobile cylinder cover |
| CN111922034A (en) * | 2020-07-13 | 2020-11-13 | 广东宝杰环保科技有限公司 | Solid waste resource utilization gold-bearing object purification device |
-
2004
- 2004-09-20 CN CN 200410077929 patent/CN1605407A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1978369B (en) * | 2005-12-08 | 2012-08-29 | 邢玉清 | Method for producing mineral admixture for high-strength high-performance concrete |
| CN101638730A (en) * | 2008-07-31 | 2010-02-03 | 塔塔钢铁有限公司 | Method for preparing sponge chromium from metallurgical-grade chromite concentrate fine powder |
| CN106076589A (en) * | 2016-06-23 | 2016-11-09 | 含山县永帮再生资源利用有限公司 | A kind of method that cement raw material prepared by waste residue using casting automobile cylinder cover |
| CN106116188A (en) * | 2016-06-23 | 2016-11-16 | 含山县永帮再生资源利用有限公司 | A kind of method using casting waste residue to prepare cement |
| CN106111316A (en) * | 2016-06-23 | 2016-11-16 | 含山县永帮再生资源利用有限公司 | A kind of recoverying and utilizing method of the waste residue casting automobile cylinder cover |
| CN111922034A (en) * | 2020-07-13 | 2020-11-13 | 广东宝杰环保科技有限公司 | Solid waste resource utilization gold-bearing object purification device |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |