CN110331295A - It is a kind of metallurgy solid waste, dangerous waste handle hot-assembling method - Google Patents
It is a kind of metallurgy solid waste, dangerous waste handle hot-assembling method Download PDFInfo
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- CN110331295A CN110331295A CN201910734121.1A CN201910734121A CN110331295A CN 110331295 A CN110331295 A CN 110331295A CN 201910734121 A CN201910734121 A CN 201910734121A CN 110331295 A CN110331295 A CN 110331295A
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- Prior art keywords
- burning machine
- reduced pellet
- chain type
- hot
- waste
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/14—Agglomerating; Briquetting; Binding; Granulating
- C22B1/24—Binding; Briquetting ; Granulating
- C22B1/2406—Binding; Briquetting ; Granulating pelletizing
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention belongs to smelting process technical field, i.e., a kind of metallurgical solid waste, dangerous waste handle hot-assembling method.Its step are as follows: using high pressure ball press technique ball, with chain type pre-reduced pellet burning machine agglomerates, hot charging enters mine heat furnace smelting, specifically: (1) first mixing various solid wastes, dangerous waste, reducing agent, balling-up is suppressed on high-pressure ball press, wet bulb intensity is high；(2) wet bulb is packed into chain type pre-reduced pellet burning machine, the output high temperature pre-reduced pellet after drying, preheating, roasting, pelletizing abundant prereduction in kiln, prereduction degree > 70%；(3) high temperature pre-reduced pellet is packed into heat preservation batch can together with other ingredients, is promoted to furnace roof and is added in mineral hot furnace and smelts.With high-pressure ball press ball, ball making process is simple, and wet bulb intensity is high, not will cause secondary pollution.It is roasted with chain type pre-reduced pellet burning machine, pelletizing is static on machine, and pelletizing breakage rate is low.High temperature pre-reduced pellet is produced with chain type pre-reduced pellet burning machine, power consumption can be greatly lowered.
Description
Technical field
The invention belongs to smelting process technical field, i.e., a kind of metallurgical solid waste, dangerous waste handle hot-assembling method.
Background technique
In the prior art, the solid wastes such as volume of smoke, acid cleaning waste slag, polishing clast, these solid wastes are generated in metallurgical production
In metal oxide rich in.Metallurgical solid waste such as improper conduct oneself well is set, and cannot not only be turned waste into wealth, and can become it is toxic,
Harmful substance has adverse effect on production, security context.
Existing metallurgy solid waste, dangerous waste treatment process mainly include following two: 1, first by solid waste, dangerous waste sintering processes after,
Mineral hot furnace or blast furnace process is added as metallurgical raw material.2, first by solid waste, dangerous waste is levigate, pelletizing, after roasting, as metallurgical raw material
Mineral hot furnace or blast furnace process is added.
Main problem existing for existing fixed-end forces technology is as follows:
1, solid waste, the blocking rate of dangerous waste sintering processes technique are low, and sinter strength is low, cause secondary pollution, and cold burden enters furnace and smelts electricity
Consumption is high.2, solid waste, dangerous waste pellet roasting treatment process, ore grinding power consumption is high, and wet-milling causes water pollution, belongs to oxidation with shaft furnace production
Pelletizing, pelletizing is without prereduction, and ripe ball temperature is low, causes melting electric consumption height.
Summary of the invention
The purpose of the present invention is providing a kind of secondary pollution for avoiding ball process processed from generating in view of the above deficiencies, electricity is smelted
Consume the metallurgical solid waste being greatly lowered, dangerous waste processing hot-assembling method.
The technical solution of the invention is as follows: it is a kind of metallurgy solid waste, dangerous waste handle hot-assembling method, it is characterised in that step is such as
Under: using high pressure ball press technique ball, with chain type pre-reduced pellet burning machine agglomerates, hot charging enters mine heat furnace smelting, specifically
It is:
(1) first various solid wastes, dangerous waste, reducing agent are mixed, balling-up is suppressed on high-pressure ball press, wet bulb intensity is high；
(2) wet bulb is packed into chain type pre-reduced pellet burning machine, output high temperature pre-reduced pellet, ball after drying, preheating, roasting
Group's abundant prereduction in kiln, prereduction degree > 70%；
(3) high temperature pre-reduced pellet is packed into heat preservation batch can together with other ingredients, is promoted to furnace roof and is added in mineral hot furnace and smelts.
In above scheme,
The maturing temperature of burning machine is up to 1400 DEG C.
Using chain type pre-reduced pellet burning machine, pelletizing continuously, is equably laid on burning machine in burning machine, then
Fuel gas buring is sprayed into burning machine.
This technology avoids the secondary pollution that ball process processed generates, and passes through chain type pre-reduced pellet burning machine maturing temperature
Height, pelletizing breakage rate is low, belongs to pre-reduced pellet, melting electric consumption is greatly lowered after high temperature pelletizing hot charging enters furnace, good economy performance.
The invention has the advantages that 1, with high-pressure ball press ball, ball making process is simple, and wet bulb intensity is high, not will cause two
Secondary pollution.2, it is roasted with chain type pre-reduced pellet burning machine, pelletizing is static on machine, and pelletizing breakage rate is low.3, it is gone back in advance with chain type
Former pellet firing machine produces high temperature pre-reduced pellet, and power consumption can be greatly lowered.4, high temperature pelletizing is placed in heat preservation batch can, and hot charging enters
Melting electric consumption is greatly lowered in furnace.
Embodiments of the present invention are described in further detail below in conjunction with embodiment.
Detailed description of the invention
Fig. 1 is flow chart of the present invention.
Specific embodiment
Referring to Fig. 1, a kind of solid waste, dangerous waste processing method use high pressure ball press technique ball, with chain type pre-reduced pellet
Burning machine agglomerates, hot charging enter mine heat furnace smelting.
Specifically, first various solid wastes, dangerous waste, reducing agent (coke blacking) are mixed, balling-up, work is suppressed on high-pressure ball press
Skill is simple, and wet bulb intensity is high.
Wet bulb is packed into chain type pre-reduced pellet burning machine, after drying, preheating, roasting, output high temperature pre-reduced pellet,
Up to 1400 DEG C, closed prereduction kiln isolation air enters the maturing temperature of burning machine, can generate reducing atmosphere, pelletizing is in kiln
Interior abundant prereduction, prereduction degree > 70%.
High temperature pre-reduced pellet is packed into heat preservation batch can together with other ingredients, and mineral hot furnace is added through crane lifting to furnace roof
Interior smelting, high temperature pelletizing enter furnace melting electric consumption and are greatly lowered.
Using chain type pre-reduced pellet burning machine, pelletizing continuously, is equably laid on burning machine in burning machine, then
Fuel gas buring is sprayed into burning machine, and relative motion is not present when roasting in chain type pre-reduced pellet burning machine due to pelletizing,
Its breakage rate is very low.
It is described above, only a specific embodiment of the invention, it is various to illustrate not content structure for the essence of the present invention
At limitation.
Claims (3)
1. a kind of metallurgy solid waste, dangerous waste handle hot-assembling method, it is characterised in that steps are as follows: using high pressure ball press technique ball,
With chain type pre-reduced pellet burning machine agglomerates, hot charging enters mine heat furnace smelting, specifically:
(1) first various solid wastes, dangerous waste, reducing agent are mixed, balling-up is suppressed on high-pressure ball press, wet bulb intensity is high；
(2) wet bulb is packed into chain type pre-reduced pellet burning machine, output high temperature pre-reduced pellet, ball after drying, preheating, roasting
Group's abundant prereduction in kiln, prereduction degree > 70%；
(3) high temperature pre-reduced pellet is packed into heat preservation batch can together with other ingredients, is promoted to furnace roof and is added in mineral hot furnace and smelts.
2. a kind of metallurgical solid waste described in accordance with the claim 1, dangerous waste handle hot-assembling method, it is characterised in that the roasting of burning machine
Temperature is up to 1400 DEG C.
3. a kind of metallurgical solid waste according to claim 1 or 2, dangerous waste handle hot-assembling method, it is characterised in that use chain type
Pelletizing continuously, is equably laid on burning machine in burning machine, then sprays into combustion into burning machine by pre-reduced pellet burning machine
Gas burning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910734121.1A CN110331295A (en) | 2019-08-09 | 2019-08-09 | It is a kind of metallurgy solid waste, dangerous waste handle hot-assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910734121.1A CN110331295A (en) | 2019-08-09 | 2019-08-09 | It is a kind of metallurgy solid waste, dangerous waste handle hot-assembling method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110331295A true CN110331295A (en) | 2019-10-15 |
Family
ID=68149127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910734121.1A Pending CN110331295A (en) | 2019-08-09 | 2019-08-09 | It is a kind of metallurgy solid waste, dangerous waste handle hot-assembling method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110331295A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0453151A1 (en) * | 1990-04-20 | 1991-10-23 | Sumitomo Heavy Industries, Ltd | Process for recovering valuable metals from a dust containing zinc |
| CN1458289A (en) * | 2002-05-15 | 2003-11-26 | 张美焦 | Method for realizing zero exhaust for fully steelmaking of steel dust and mud |
| CN104694758A (en) * | 2015-03-13 | 2015-06-10 | 宝钢发展有限公司 | Technique for comprehensively utilizing iron-containing dust mud |
| CN109295316A (en) * | 2018-12-05 | 2019-02-01 | 盐边县向阳钒业有限公司 | The recovery process of vanadium in vanadium containing steel slag |
-
2019
- 2019-08-09 CN CN201910734121.1A patent/CN110331295A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0453151A1 (en) * | 1990-04-20 | 1991-10-23 | Sumitomo Heavy Industries, Ltd | Process for recovering valuable metals from a dust containing zinc |
| CN1458289A (en) * | 2002-05-15 | 2003-11-26 | 张美焦 | Method for realizing zero exhaust for fully steelmaking of steel dust and mud |
| CN104694758A (en) * | 2015-03-13 | 2015-06-10 | 宝钢发展有限公司 | Technique for comprehensively utilizing iron-containing dust mud |
| CN109295316A (en) * | 2018-12-05 | 2019-02-01 | 盐边县向阳钒业有限公司 | The recovery process of vanadium in vanadium containing steel slag |
Non-Patent Citations (1)
| Title |
|---|
| 钢铁生产知识: "《钢铁生产知识》", 31 December 1972, 冶金工业出版社 * |
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Application publication date: 20191015 |