CN101569875A - Process for jigging iron from molten nickel iron slag - Google Patents
Process for jigging iron from molten nickel iron slag Download PDFInfo
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- CN101569875A CN101569875A CNA2008100251659A CN200810025165A CN101569875A CN 101569875 A CN101569875 A CN 101569875A CN A2008100251659 A CNA2008100251659 A CN A2008100251659A CN 200810025165 A CN200810025165 A CN 200810025165A CN 101569875 A CN101569875 A CN 101569875A
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- slag
- jigging
- iron
- jigging machine
- grain slag
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Abstract
The invention relates to a process for jigging iron from molten nickel iron slag. The molten nickel iron slag is quantitatively uniformly supplied to a jigging machine after being smashed and sieved so as to realize slag and iron separation through the jigging machine, iron particles flow into a concentrate tank, the slag is roared to a high-frequency dewatering screen for dewatering, water enters a circulating water tank, and the slag is transferred to a slag yard by a belt conveyor. The process can ensure that the recovery rate of the iron particles in the slag reaches more than 98 percent and the slag content of the recovered iron particles is less than 5 percent.
Description
Affiliated technical field:
The present invention relates to a kind of environmental protection and resources conservation comprehensive utilization technique of process for jigging iron from molten nickel iron slag.
Background technology:
General iron content 0.2-0.8% in the ferronickel grain slag (different and different with the working of a furnace, general furnace temperature height, iron-holder is just than higher in the slag), and the quantity of slag is big, slag iron if can divide recovery to the granulated iron in the grain slag, has good economic benefits than up to 3: 1 with filling.
At present, known ferronickel grain slag selects iron to have two kinds: one is to use magnetic separator is installed in sluice, the iron content bead directly is generally less than regular pig grain slag iron content bead degree in the ferronickel grain slag, employing is lower in the method rate of recovery of sluice magnetic separation, because the flushing cinder water effect of big flow under, abrasive grit is difficult for being sucted by magnetic drum, loss many; Another method is in addition at slag muck field magnetic separation iron, and this mode selects iron efficient not high, and itself so still contain a large amount of slags in the product that magnetic separation is come out, also needs to carry out once more selected because moisture in the few and slag of iron content in the grain slag.
Summary of the invention:
In order to overcome the low and impure shortcoming of regenerant of the existing grain slag iron selection technique rate of recovery, the invention provides a kind of improved jigging iron separation technique, this technology can guarantee that the granulated iron rate of recovery is more than 98% in the slag, the dregginess that reclaims granulated iron is less than 5%.The technical solution adopted for the present invention to solve the technical problems is:
Through after the screening fragmentation, jigging machine is supplied with on quantitative and even ground to grain slag earlier, realizes that by jigging machine slag iron separates, and abrasive grit flows into the concentrate pond, and slag is rushed to high-frequency dewatering screen and dewaters, and water enters circulating water pool, and slag is transferred to the slag muck field by belt feeder.
The epigranular of feed and delivery rate evenly are the necessary conditions of jigging machine operate as normal, thus the jigging machine feeding end integrated the function of fragmentation and dosing, satisfied high-recovery and reclaimed the problem of granulated iron purity.
The invention has the beneficial effects as follows:
The ferronickel grain slag that can realize high-recovery and recovery granulated iron purity selects iron.
Description of drawings:
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the system flow chart of process for jigging iron from molten nickel iron slag.
The grab bucket of 1. grain slags, 2. feed bin, 3. vibratory sieve, 4. intermediate bin, 5. disk feeder, 6. jigging machine, 7. belt conveyor, 8. high-frequency dewatering screen, 9. impact breaker among the figure.
The specific embodiment:
In Fig. 1, driving grab bucket (1) (or loading machine) is the grain slag hopper (2) of packing into, and the hopper bottom connects vibratory sieve (3), through after the bolting,＞5mm oversize enters impact breaker (9) fragmentation through chute, and the material after the fragmentation is got back to feed bin through belt feeder; ≤ 5mm screenings enters intermediate bin (4), the intermediate bin bottom links to each other with disk feeder (5), disk feeder (5) is given jigging machine (6) feed quantitatively, the slag that process jigging machine (5) separates is flushed to high-frequency dewatering screen (8) by water and dewaters, slag after the dehydration is delivered to the slag muck field by belt conveyor (7), and water flows into the pond and recycles.
Claims (4)
1. a ferronickel grain slag iron selection technique through the broken grain slag of screening, supplies to quantitative and even the Give jigging machine, realize that by jigging machine slag iron separates, abrasive grit flows into the concentrate pond, and slag is rushed to high-frequency dewatering screen and dewaters, water enters circulating water pool, and slag is transferred to the slag muck field by belt feeder.It is characterized in that: through the broken grain slag of screening, quantitative and even Di Gong Give jigging machine, the tailings behind the jigging is through the high-frequency dewatering screen dehydration.
2. ferronickel grain slag iron selection technique according to claim 1 is characterized in that: the ferronickel grain slag through screening after, the raw meal particle size that guarantees to enter jigging machine is even, bulk materials can destroy bed through going into jigging machine, influences the jigging effect.
3. ferronickel grain slag iron selection technique according to claim 1 is characterized in that: to material process disk feeder is set at jigging machine, to realize at the uniform velocity feed, can guarantees the stable of ragging, guarantee the jigging effect.
4. ferronickel grain slag iron selection technique according to claim 1 is characterized in that: the tailings by jigging machine is through behind the high-frequency dewatering screen, can make that tailings is moisture to be less than 10%, can reduce the consumption of water, and using water wisely reaches 100kg/ ton slag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100251659A CN101569875A (en) | 2008-04-29 | 2008-04-29 | Process for jigging iron from molten nickel iron slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100251659A CN101569875A (en) | 2008-04-29 | 2008-04-29 | Process for jigging iron from molten nickel iron slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101569875A true CN101569875A (en) | 2009-11-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100251659A Pending CN101569875A (en) | 2008-04-29 | 2008-04-29 | Process for jigging iron from molten nickel iron slag |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443704A (en) * | 2011-12-09 | 2012-05-09 | 福建紫金铜业有限公司 | Method for comprehensive recovery of valuable metal from high-grade copper slag |
| CN103667675A (en) * | 2013-08-01 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Treatment method of laterite-nickel ore |
| CN105398803A (en) * | 2015-11-27 | 2016-03-16 | 中国水产科学研究院渔业机械仪器研究所 | Uniform feeding device and method for unshelling processing of small shrimps |
| CN106179712A (en) * | 2016-07-29 | 2016-12-07 | 山东国晟智能装备有限公司 | The jig washer that a kind of coal washing efficiency is high |
| CN110538717A (en) * | 2019-09-11 | 2019-12-06 | 李怀明 | Method for recovering nickel sulfide from nickel slag |
-
2008
- 2008-04-29 CN CNA2008100251659A patent/CN101569875A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102443704A (en) * | 2011-12-09 | 2012-05-09 | 福建紫金铜业有限公司 | Method for comprehensive recovery of valuable metal from high-grade copper slag |
| CN103667675A (en) * | 2013-08-01 | 2014-03-26 | 北京神雾环境能源科技集团股份有限公司 | Treatment method of laterite-nickel ore |
| CN105398803A (en) * | 2015-11-27 | 2016-03-16 | 中国水产科学研究院渔业机械仪器研究所 | Uniform feeding device and method for unshelling processing of small shrimps |
| CN106179712A (en) * | 2016-07-29 | 2016-12-07 | 山东国晟智能装备有限公司 | The jig washer that a kind of coal washing efficiency is high |
| CN110538717A (en) * | 2019-09-11 | 2019-12-06 | 李怀明 | Method for recovering nickel sulfide from nickel slag |
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Open date: 20091104 |