CN102019112A - Novel process for filtration of tail powder slurry of deep processed product of steel slag - Google Patents
Novel process for filtration of tail powder slurry of deep processed product of steel slag Download PDFInfo
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- CN102019112A CN102019112A CN2009101874454A CN200910187445A CN102019112A CN 102019112 A CN102019112 A CN 102019112A CN 2009101874454 A CN2009101874454 A CN 2009101874454A CN 200910187445 A CN200910187445 A CN 200910187445A CN 102019112 A CN102019112 A CN 102019112A
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- Prior art keywords
- tail powder
- powder slurry
- slag
- slurry
- processed product
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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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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to the technical field of the deep processed product of steel slag, in particular to a novel process for the filtration of the tail powder slurry of the deep processed product of steel slag, which comprises the following steps: concentrating the tail powder slurry separated by deep processing of the steel slag magnetic separation product by a concentrator to obtain an ore slurry concentration of 25-35%; transporting the ore slurry from the bottom of the concentrator to the ore slurry adjusting tank on the upper part of a filter press by a slag slurry pump; adding a polymer flocculant into the ore slurry adjusting tank; mixing the concentrated ore slurry and the polymer flocculant completely in the adjusting tank; allowing the mixture to flow automatically from the adjusting groove into the filter press; transporting the pressure-filtered filter cake with a concentration of 65-75% to the finished product storehouse of tail powder slurry by a belt; returning the filtrate to the concentrator. The polymer flocculant is polyacrylamide. The addition amount of the polymer flocculant is 0.45-0.55 kilogram/ton ore slurry. By processing tail powder slurry of the tailing product of steel slag by the filtration process, secondary resources of iron and steel enterprises are effectively recovered and the productivity is improved, so economic benefits are obtained for iron and steel enterprises.
Description
Technical field
The present invention relates to slag deep processed product technical field, particularly a kind of slag deep processed product tail powder slurry filters new technology.
Background technology
Slag is the waste residue of getting rid of in the steelmaking process.Slag is mainly derived from the oxide that forms after the contained element oxidation in molten iron and the steel scrap, the impurity that metal charge is brought into, the slag former of adding such as lime stone, fluorite, silica and oxidant, desulfurization product and furnace lining material of being etched etc.Iron in the slag takes certain technology to reclaim.Product after slag process preliminary working and the deep processing is respectively smart piece steel, smart iron powder, tail powder slurry.Filter filter in the filter type cartridge type that tail powder slurry adopts, poor filtration effect, product is moisture higher, is unfavorable for transportation.
Summary of the invention
The object of the present invention is to provide a kind of slag deep processed product tail powder slurry to filter new technology, help abundant exploitation, comprehensive utilization steel slag resource, solve the problem that exists in the technology in the past.
The objective of the invention is to realize by following technical proposals.
Slag deep processed product tail powder slurry of the present invention filters new technology, it is characterized in that comprising the steps:
1) slurry of the tail powder after the steel scoria magnetic separation product deep process is sorted is after thickener concentrates, and pulp density is delivered to the ore pulp on filter press top and adjusted groove 25～35% by the slag stock pump of thickener bottom,
2) in adjusting groove, ore pulp adds high polymer coagulant simultaneously,
3) ore pulp after concentrating and the entrance pressure filter that flows automatically in the adjustment groove after high polymer coagulant fully mixes in adjusting groove,
4) concentration after the press filtration is 65～75% filter cake, is transported to tail powder slurry finished bin through belt,
5) filtrate is returned thickener,
Described high polymer coagulant is a polyacrylamide.
The addition of described high polymer coagulant is 0.45～0.55 kilogram of an ore pulp per ton.
Described filter press is the DYT2000 filter press.
Described thickener is
Thickener.
Provide slag deep processed product tail powder slurry of the present invention to filter new technology, guaranteed the continuity of production process, improved productivity ratio.Tail powder slurry after slag sorts fully mixes with the medicament high polymer coagulant through being pumped to the ore pulp surge tank, and mixed tail powder slurry is from pulp tank gravity flow entrance pressure filter, and filtrate turns back in the technological process and goes.Adopt this filtering technique to handle the product from failing tail powder slurry of slag, reclaimed the secondary resource of iron and steel enterprise effectively, improved productivity ratio, for iron and steel enterprise has obtained remarkable economic efficiency.
Description of drawings
Fig. 1 is a process chart of the present invention.
The specific embodiment
The present invention is further described below in conjunction with accompanying drawing.
As shown in Figure 1, slag deep processed product tail powder slurry of the present invention filters new technology, it is characterized in that comprising the steps:
1) slurry 1 of the tail powder after the steel scoria magnetic separation product deep process is sorted is after thickener 2 concentrates, and pulp density is delivered to the ore pulp on filter press 4 tops and adjusted groove 3 25～35% by the slag stock pump of thickener 2 bottoms, and described thickener is
Thickener
2) add high polymer coagulant 7 simultaneously in ore pulp is adjusted groove 3, described high polymer coagulant is for preferably adopting polyacrylamide; The addition of described high polymer coagulant is 0.45～0.55 kilogram of/ton ore pulp;
3) ore pulp after concentrating and the entrance pressure filter 4 that flows automatically in the adjustment groove 3 after high polymer coagulant fully mixes in adjusting groove 3, its filter press employing DYT2000 filter press,
4) concentration after the press filtration is 65～75% filter cake 5, is transported to tail powder slurry finished bin through belt,
5) filtrate 6 is returned thickener 2,
The present invention is that the tail powder after slag is sorted is starched after thickener concentrates, and fully mixes with the medicament high polymer coagulant through being pumped to the ore pulp surge tank again, and mixed tail powder slurry is from pulp tank gravity flow entrance pressure filter, and filtrate turns back in the technological process and goes.Adopt this filtering technique to handle the product from failing tail powder slurry of slag, reclaimed the secondary resource of iron and steel enterprise effectively, improved productivity ratio, for iron and steel enterprise has obtained remarkable economic efficiency.
Claims (4)
1. a slag deep processed product tail powder slurry filters new technology, it is characterized in that comprising the steps:
1) slurry of the tail powder after the steel scoria magnetic separation product deep process is sorted is after thickener concentrates, and pulp density is delivered to the ore pulp on filter press top and adjusted groove at 25-35% by the slag stock pump of thickener bottom,
2) in adjusting groove, ore pulp adds high polymer coagulant simultaneously,
3) ore pulp after concentrating and the entrance pressure filter that flows automatically in the adjustment groove after high polymer coagulant fully mixes in adjusting groove,
4) concentration after the press filtration is 65～75% filter cake, is transported to tail powder slurry finished bin through belt,
5) filtrate is returned thickener,
Described high polymer coagulant is a polyacrylamide.
2. slag deep processed product tail powder slurry according to claim 1 filters new technology, and the addition that it is characterized in that described high polymer coagulant is 0.45～0.55 kilogram of/ton ore pulp.
3. slag deep processed product tail powder slurry according to claim 1 filters new technology, it is characterized in that described filter press is the DYT2000 filter press.
4. slag deep processed product tail powder slurry according to claim 1 filters new technology, it is characterized in that described thickener is
Thickener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101874454A CN102019112A (en) | 2009-09-18 | 2009-09-18 | Novel process for filtration of tail powder slurry of deep processed product of steel slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101874454A CN102019112A (en) | 2009-09-18 | 2009-09-18 | Novel process for filtration of tail powder slurry of deep processed product of steel slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102019112A true CN102019112A (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101874454A Pending CN102019112A (en) | 2009-09-18 | 2009-09-18 | Novel process for filtration of tail powder slurry of deep processed product of steel slag |
Country Status (1)
| Country | Link |
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| CN (1) | CN102019112A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362480A (en) * | 2016-11-24 | 2017-02-01 | 官景梁 | Efficient filtering method of concentrate pulp |
| CN111704112A (en) * | 2020-07-16 | 2020-09-25 | 张家口天龙科技发展有限公司 | Process method for preparing sulfur by purifying sulfur paste as byproduct of coke oven gas desulfurization |
-
2009
- 2009-09-18 CN CN2009101874454A patent/CN102019112A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362480A (en) * | 2016-11-24 | 2017-02-01 | 官景梁 | Efficient filtering method of concentrate pulp |
| CN111704112A (en) * | 2020-07-16 | 2020-09-25 | 张家口天龙科技发展有限公司 | Process method for preparing sulfur by purifying sulfur paste as byproduct of coke oven gas desulfurization |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110420 |