CN1012378B - Recovery technique of zinc oxide by treatment of dust during smelting copper from copper ash - Google Patents
Recovery technique of zinc oxide by treatment of dust during smelting copper from copper ashInfo
- Publication number
- CN1012378B CN1012378B CN88105149A CN88105149A CN1012378B CN 1012378 B CN1012378 B CN 1012378B CN 88105149 A CN88105149 A CN 88105149A CN 88105149 A CN88105149 A CN 88105149A CN 1012378 B CN1012378 B CN 1012378B
- Authority
- CN
- China
- Prior art keywords
- dust
- zinc oxide
- copper
- settling
- flue dust
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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Classifications
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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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a recovery technology of zinc oxide treated by copper smelting powder from copper dust. The technology is composed of smoke dust cooling, spraying and collection, powder dust settlement, dust removal of a cloth bag, and zinc oxide package. The present invention has the characteristics of simple technological device, short flow path, easy implement, complete recovery of byproduct zinc oxide powder in the process of production, thorough solution of the treating problem of powder dust, no increase of power, economic benefit and social benefit. The present invention can also be applied to powder dust treatment and the recovery of resources of other relevant industries.
Description
The present invention relates to smelt treating flour dust-recovery technique of zinc oxide field in the purification copper material production process with the copper ash.This technology also can be used for the treating flour dust of other relevant industry.
When the copper ash was exactly the copper metallurgy of cast copper industry, slag that the upper strata rises after the material fusion in the smelting furnace and stove be ash down; The copper ash is made up of copper-zinc alloy powder and impurity.The fusing point of the zinc in smelting purification furnace, in the copper-zinc alloy powder is that 419.4 ℃, boiling point are that 907 ℃, the fusing point of copper are 1083 ℃ (can cast copper ingot etc. after molten, purity can reach 99%).When copper reaches fusing point, zinc seethe with excitement already and with air in Sauerstoffatom reaction generate zinc oxide, then with the form of dust wave in the wind all over the sky, the severe contamination surrounding environment, zinc oxide also can't reclaim, waste.Smelt purification copper with copper scale, broken copper, situation also is like this.At present, still there is not this kind treating flour dust-recovery technique of zinc oxide.
The objective of the invention is, treating flour dust-recovery technique of zinc oxide in a kind of copper ash copper metallurgy production is provided.
Technical process of the present invention is pounced on collection, dust settling, bag-type dust and zinc oxide packing five processes by flue dust cooling, spray and is formed as shown in drawings.
Below whole technology is described below step by step by operation:
1, flue dust cooling
The flue dust (wherein dust is mainly Zinc oxide particles) of smelting the purification furnace generation is flowed out by pipeline, and the indirect water-cooling device is housed on the pipeline, and the flue dust temperature is cooled to 300-400 ℃ by 700-800 ℃.Water cooling plant outlet water temp is very high, can collect utilization.
2, spray is pounced on collection
The major equipment of this operation is a water wash column.The flue dust that comes by pipeline enter behind the water wash column water droplet with the shower nozzle ejection on tower top to flow operation, pounce on the collection zinc oxide dust.Pounce on the Zinc oxide powder that collects and flow into sloptank with water, wet oxidation zinc packs sale after drying after the solid-liquid separation.The Zinc oxide particles of not pounced on collection moves on flue dust.
3, dust settling
This operation has the settling vessel of two connections.Flue dust enters bore thereby the flue dust pressure that first settling vessel equaled to enlarge pipeline by pipeline have been reduced, and dust granules is run into snags everywhere and run foul of each other and consumed suitable energy in addition, so some dust-zinc oxide falls at the bottom of the device.Do not have settled dust-zinc oxide with flue dust by the difference that pipeline enters second settling vessel, it and first settling vessel be to have inclined plate baffle, to increase its settling efficiency.In second settling vessel, do not have settled dust to move on flue dust.Two settling vessels all have can switch discharge door so that get the material pack.
4, bag-type dust (recovery zinc oxide)
The outlet of second settling vessel is connected with the pipeline of end sealing, a side of pipeline row's mouth-piece arranged side by side, canvas pocket of each interface pipe box.The flue dust that is come by second settling vessel enters each cloth bag respectively, and flue gas is discharged by the canvas micropore, and dust-zinc oxide stays in canvas bag.
5, zinc oxide packing
The Zinc oxide powder pack that canvas bag is interior and settling vessel is interior is weighed and can be sold.Wet feed in the sloptank needs the pack of dry back.
Flue dust mobile power of the present invention is fully by means of the power of the air blast air inducing of smelting purification furnace.Do not increase energy consumption.Adopt this technology, smelting purification furnace does not need chimney.
Advantage of the present invention is that technology is simple, flow process is short.Adopt the present invention,, also do not need to set up chimney with the neither other consumes energy of copper ash copper metallurgy; Both zinc oxide can be reclaimed fully, problem of environmental pollution can be thoroughly solved again; Both had an economic benefit, social benefit was arranged again.
Claims (1)
1, treatment of dust during smelting copper from copper ash-recovery technique of zinc oxide is characterized in that pouncing on collection, dust settling, bag-type dust and zinc oxide packing five processes by flue dust cooling, spray forms,
Flue dust cooling is water cooling plant is housed on the flue dust pipeline, indirectly the flue dust temperature is cooled to 300-400 ℃ by 700-800 ℃,
Spray pounce on collection by water wash column carry out, flue dust and the convection current of spray water droplet operation pounces on collection dust-Zinc oxide particles, pounce on to collect dust-zinc oxide wet feed and flow into sloptank, through solid-liquid separation and dry after pack,
Dust settling by two dust settling devices that connect by pipeline carry out, first settling vessel is cavity, in second settling vessel inclined plate baffle is arranged, in this sedimentation, two settling vessels all have discharge door, for getting the material packaging from the dirt in the flue dust of last operation,
Cloth bag is fixed on the mouth-piece of flue dust pipeline one side that is connected with the outlet of second settling vessel, enter each cloth bag respectively by last operation flue dust by the road after, flue gas is stayed in bag by the discharge of cloth bag pore, dust-zinc oxide,
Dust-zinc oxide in settling vessel and the cloth bag is weighed can be packed, and the wet feed in the sloptank needs packing after drying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88105149A CN1012378B (en) | 1988-10-24 | 1988-10-24 | Recovery technique of zinc oxide by treatment of dust during smelting copper from copper ash |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN88105149A CN1012378B (en) | 1988-10-24 | 1988-10-24 | Recovery technique of zinc oxide by treatment of dust during smelting copper from copper ash |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1033196A CN1033196A (en) | 1989-05-31 |
| CN1012378B true CN1012378B (en) | 1991-04-17 |
Family
ID=4833377
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN88105149A Expired CN1012378B (en) | 1988-10-24 | 1988-10-24 | Recovery technique of zinc oxide by treatment of dust during smelting copper from copper ash |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1012378B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1060407C (en) * | 1998-09-11 | 2001-01-10 | 山川机床铸造厂研究所 | Positive pressure filtration process for smoke purification during duriron smelting |
| CN101525695B (en) * | 2009-04-15 | 2010-09-08 | 韩江霖 | Method for recycling zinc fume in enrichment smelting technology of manganese |
| CN103771489A (en) * | 2013-12-24 | 2014-05-07 | 叶礼平 | Method for preparing nano-zinc oxide from copper smelting dust at low temperature |
-
1988
- 1988-10-24 CN CN88105149A patent/CN1012378B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1033196A (en) | 1989-05-31 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |