CN103934087A - Method for treating intermediate product generated in copper smelting process - Google Patents
Method for treating intermediate product generated in copper smelting process Download PDFInfo
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- CN103934087A CN103934087A CN201410146008.9A CN201410146008A CN103934087A CN 103934087 A CN103934087 A CN 103934087A CN 201410146008 A CN201410146008 A CN 201410146008A CN 103934087 A CN103934087 A CN 103934087A
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Abstract
The invention discloses a method for treating an intermediate product generated in a copper smelting process. The method is characterized by comprising the following steps: crushing a large intermediate product and performing ore grinding; pre-grading ball-milled ore pulp through a drum sieve, allowing particles with diameter greater than 5mm to enter a slag-copper separating device through an electric vibrating sieve, and returning the separated particles back into a ball mill for re-milling; discharging nonmagnetic substances; pumping ore pulp with particle diameter smaller than 5mm into a cyclone for grading; feeding overflows into a buffer tank and performing pressure filtration dry-discharge by a pressure filter; dewatering settled sand through a high-frequency vibrating-dewatering sieve; conveying oversize materials with particle diameter greater than 0.33mm into a material bin by a belt conveyor; feeding undersize pulp with particle diameter smaller than 0.33mm into the buffer tank; and performing pressure filtration dry-discharge on the pulp together with cyclone overflows by the pressure filter. According to the method, the treatment capacity is increased, the ore grinding efficiency is enhanced, the cost is lowered and the dewatering effect is good.
Description
Technical field:
The processing method that the present invention relates to the middle product that produce in a kind of copper smelting process, belongs to copper technical field of smelting.
Background technology:
At present, copper is smelted main " oxygen-enriched side-blowing bath melting-reverberatory refining-electrorefining " technological process that adopts, in production, produce blow slag, the contour copper-contained material of smart slag (hereinafter to be referred as middle product) returns to oxygen-enriched side-blowing furnace and recycles.Because middle product granularity is large, in the middle of simple crumbling method can not make, product reach into stove requirement, cause the economic technology such as coal consumption, power consumption parameter to raise.For product granularity in the middle of reducing, adopt preparation equipment to process it, middle product after ball milling is levigate enter hydroclone classification, overflow (particle below 200 orders is called overflow) is directly used through cloth bag press filtration fed to boiler, sand setting (particles more than 200 orders, is called sand setting) returns to ball mill and again processes.And for smelting system, even granularity+200 object sand setting also reaches completely into stove requirement, this part particle need to be in system circular treatment.Sand setting is constantly circulation in system, and the treating capacity of ball mill, only at 3-4t/h, causes grinding efficiency to reduce, and cost increases.Summary of the invention:
The object of the invention is to overcome the deficiency of above-mentioned prior art and provide one to increase treating capacity, improving grinding efficiency, reducing costs, the processing method of the middle product that produce in the good copper smelting process of dehydrating effect.
Object of the present invention can reach by following measure: the processing method of the middle product that 1, produce in a kind of copper smelting process, is characterized in that comprising the steps:
A, product in the middle of bulk are crushed to be less than feed ball mill after 20mm particle diameter and carry out ore grinding processing;
B, ore grinding ball milling ore pulp after treatment carry out after pre-classification through the drum sieve of Ф 5mm, the particle that particle diameter is greater than 5mm enters slag copper separator through electric vibrating screen, realize slag copper and separate, the particle sub-electing through slag copper separator returns to ball mill through belt conveyer and regrinds; The namagnetic substance of selecting is discharged;
The ore pulp that c, particle diameter are less than 5mm pumps into a Ф 200mm cyclone and carries out classification; Overflow after cyclone classification is fed to Ф 3000mm × 3500mm surge tank, through the dry row of filter press press filtration; Sand setting after cyclone classification is fed to high-frequency oscillation dewatering screen to dewater, particle diameter is greater than the on-the-sieve material of 0.33mm and delivers to feed bin through belt conveyer, the minus mesh slurry that particle diameter is less than 0.33mm feeds surge tank, does row together with cyclone overflow through filter press press filtration.
In order further to realize object of the present invention, described ball mill is Ф 1800mm × 4500mm grate ball mill.
In order further to realize object of the present invention, described high-frequency oscillation dewatering screen is DW900 high-frequency oscillation dewatering screen.
In order further to realize object of the present invention, described filter press is 2 120 ㎡ plate and frame filter press.
In order further to realize object of the present invention, described surge tank is Ф 3000mm × 3500mm surge tank.
The present invention can produce following good effect compared with the prior art: the present invention sets up a high-frequency oscillation dewatering screen after the hydrocyclone of ore-sorting system, in the middle of ball mill is after treatment, product enter after hydroclone classification like this, sand setting does not return to ball mill and directly utilizes after dewatering screen dehydration, has avoided reaching the middle product iterative cycles into stove requirement.Because middle product do not circulate in system, more than Ball mill throughput reaches 15t/h, greatly improve grinding efficiency, reduce cost, increase middle product treating capacity, improved 2-4 doubly, and the reduction of middle product granularity improves oxygen-enriched side-blowing furnace operating environment, reduced worker's labour intensity.Meanwhile, coal consumption, power consumption etc. also decline obviously, have reduced cost, have facilitated production, and dehydrating effect is good.Adopt DW type high-frequency oscillation dewatering screen to process hydrocyclone sand, work continuously, stable, floor space is little, failure rate is low, attended operation is simple, one-time investment cost is little, power is little, follow-up running energy consumption is low; Sieve nest structural strength is high, and compass screen surface adopts polyurethane material to process, and is difficult for stopping up, and changes convenient also more wear-resisting; Both the oversize that moisture is lower can be obtained, the treating capacity of filter press can be reduced again.
Detailed description of the invention: below the detailed description of the invention of invention is elaborated:
Embodiment: copper is smelted in flow process, the steps such as blowing and refining produce the product in the middle of slag and smart slag etc. that blow of cupric 20-30%, because cupric is higher, must recycling.Before Returning smelting operation is recycled, product granularity in the middle of must reducing.For product granularity in the middle of reducing to greatest extent, adopt ore-sorting system equipment to process middle product; It comprises the steps:
A, product in the middle of bulk are crushed to be less than feed Ф 1800mm × 4500mm grate ball mill after 20mm particle diameter and carry out ore grinding processing;
B, ore grinding ball milling ore pulp after treatment carry out after pre-classification through the drum sieve of Ф 5mm, the particle that particle diameter is greater than 5mm enters slag copper separator through electric vibrating screen, realize slag copper and separate, the particle sub-electing through slag copper separator returns to ball mill through belt conveyer and regrinds; The namagnetic substance of selecting is discharged;
The ore pulp that c, particle diameter are less than 5mm pumps into a Ф 200mm cyclone and carries out classification; Overflow after cyclone classification (particle below 200 orders is called overflow) is fed to Ф 3000mm × 3500mm surge tank, through the dry row of 2 120 ㎡ plate and frame filter press press filtrations; Sand setting after cyclone classification (particles more than 200 orders is called sand setting) is fed to a DW900 high-frequency oscillation dewatering screen to dewater, particle diameter is greater than the on-the-sieve material of 0.33mm and delivers to feed bin through belt conveyer, the minus mesh slurry that particle diameter is less than 0.33mm feeds Ф 3000mm × 3500mm surge tank, does row together with cyclone overflow through 2 120 ㎡ plate and frame filter press press filtrations.
The present invention compared with the prior art treating capacity of grinding machine has improved more than 2 times, thereby has significantly reduced ore grinding cost
Table one the present invention is with the technical-economic index comparison of prior art
| ? | When ball milling platform (t/h) | Production cost (unit/t) |
| Prior art | 4.10 | 89.63 |
| The present invention | 12.50 | 28.61 |
The present invention compared with the prior art filter efficiency is higher, and the comprehensive moisture of dry scheduling product drops to 14% left and right by 18% left and right in early stage.Wherein the productive rate of oversize is in 70% left and right, and water content, in 12% left and right, meets the batching requirement of melting, and production (productive rate of each product and moisture are in table two) can directly feed intake.
Productive rate and the moisture of the dry scheduling product of table two the present invention
| ? | Oversize | Press filtration product | Comprehensive product |
| Productive rate (%) | 70.26 | 29.74 | 100 |
| Moisture (%) | 12.46 | 17.68 | 14.01 |
Claims (5)
1. a processing method for the middle product that produce in copper smelting process, is characterized in that comprising the steps:
Product in the middle of bulk are crushed to be less than and feed ball mill after 20mm particle diameter and carry out ore grinding processing;
Ore grinding ball milling ore pulp after treatment carries out after pre-classification through the drum sieve of Ф 5mm, and the particle that particle diameter is greater than 5mm enters slag copper separator through electric vibrating screen, realizes slag copper and separates, and the particle sub-electing through slag copper separator returns to ball mill through belt conveyer and regrinds; The namagnetic substance of selecting is discharged;
The ore pulp that particle diameter is less than 5mm pumps into a Ф 200mm cyclone and carries out classification; Overflow after cyclone classification is fed to Ф 3000mm × 3500mm surge tank, through the dry row of filter press press filtration; Sand setting after cyclone classification is fed to high-frequency oscillation dewatering screen to dewater, particle diameter is greater than the on-the-sieve material of 0.33mm and delivers to feed bin through belt conveyer, the minus mesh slurry that particle diameter is less than 0.33mm feeds surge tank, does row together with cyclone overflow through filter press press filtration.
2. the processing method of the middle product that produce in a kind of copper smelting process according to claim 1, is characterized in that described ball mill is Ф 1800mm × 4500mm grate ball mill.
3. the processing method of the middle product that produce in a kind of copper smelting process according to claim 1, is characterized in that described high-frequency oscillation dewatering screen is DW900 high-frequency oscillation dewatering screen.
4. the processing method of the middle product that produce in a kind of copper smelting process according to claim 1, is characterized in that described filter press is 2 120 ㎡ plate and frame filter press.
5. the processing method of the middle product that produce in a kind of copper smelting process according to claim 1, is characterized in that described surge tank is Ф 3000mm × 3500mm surge tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410146008.9A CN103934087B (en) | 2014-04-14 | 2014-04-14 | The treatment process of the middle product produced in a kind of Copper making process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410146008.9A CN103934087B (en) | 2014-04-14 | 2014-04-14 | The treatment process of the middle product produced in a kind of Copper making process |
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| CN103934087A true CN103934087A (en) | 2014-07-23 |
| CN103934087B CN103934087B (en) | 2016-06-08 |
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| CN201410146008.9A Expired - Fee Related CN103934087B (en) | 2014-04-14 | 2014-04-14 | The treatment process of the middle product produced in a kind of Copper making process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111471869A (en) * | 2020-04-15 | 2020-07-31 | 烟台国润铜业有限公司 | Crushing treatment process for copper smelting top-blown furnace slag |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4109396A1 (en) * | 1991-03-22 | 1992-09-24 | Fachbetrieb Metallischer U Cer | Prodn. of iron ore pellets, useful in metallurgical industry - comprises recirculating cover elements protecting the grate structure from heat |
| CN102029222A (en) * | 2010-11-10 | 2011-04-27 | 白银有色集团股份有限公司 | Grinding technology for processing copper-smelted slag and system thereof |
| CN102218370A (en) * | 2011-06-07 | 2011-10-19 | 大冶有色设计研究院有限公司 | Integrated process method for recycling metal copper from high-grade copper-contained furnace residues |
| CN102921521A (en) * | 2012-11-12 | 2013-02-13 | 湖北鑫鹰环保科技有限公司 | Ore grinding grading method for improving ore grinding processing capacity |
| CN103041909A (en) * | 2013-01-11 | 2013-04-17 | 武汉理工大学 | Coarsness grading process for mineral separation and grinding |
| CN202962644U (en) * | 2012-11-28 | 2013-06-05 | 浙江和鼎铜业有限公司 | Copper melting converting furnace slag mineral processing technology production line |
-
2014
- 2014-04-14 CN CN201410146008.9A patent/CN103934087B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4109396A1 (en) * | 1991-03-22 | 1992-09-24 | Fachbetrieb Metallischer U Cer | Prodn. of iron ore pellets, useful in metallurgical industry - comprises recirculating cover elements protecting the grate structure from heat |
| CN102029222A (en) * | 2010-11-10 | 2011-04-27 | 白银有色集团股份有限公司 | Grinding technology for processing copper-smelted slag and system thereof |
| CN102218370A (en) * | 2011-06-07 | 2011-10-19 | 大冶有色设计研究院有限公司 | Integrated process method for recycling metal copper from high-grade copper-contained furnace residues |
| CN102921521A (en) * | 2012-11-12 | 2013-02-13 | 湖北鑫鹰环保科技有限公司 | Ore grinding grading method for improving ore grinding processing capacity |
| CN202962644U (en) * | 2012-11-28 | 2013-06-05 | 浙江和鼎铜业有限公司 | Copper melting converting furnace slag mineral processing technology production line |
| CN103041909A (en) * | 2013-01-11 | 2013-04-17 | 武汉理工大学 | Coarsness grading process for mineral separation and grinding |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111471869A (en) * | 2020-04-15 | 2020-07-31 | 烟台国润铜业有限公司 | Crushing treatment process for copper smelting top-blown furnace slag |
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| CN103934087B (en) | 2016-06-08 |
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