CN107267709A - A kind of use converter gas all can heat the heater and heating means of steel scrap - Google Patents
A kind of use converter gas all can heat the heater and heating means of steel scrap Download PDFInfo
- Publication number
- CN107267709A CN107267709A CN201710643350.3A CN201710643350A CN107267709A CN 107267709 A CN107267709 A CN 107267709A CN 201710643350 A CN201710643350 A CN 201710643350A CN 107267709 A CN107267709 A CN 107267709A
- Authority
- CN
- China
- Prior art keywords
- steel scrap
- scrap
- converter
- heating
- valve
- 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.)
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/466—Charging device for converters
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
- C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C2100/00—Exhaust gas
- C21C2100/06—Energy from waste gas used in other processes
-
- 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
Abstract
The present invention relates to the heater and heating means that a kind of use converter gas all can heat steel scrap, heater includes exhaust fume collecting hood, evaporated flue, conveying pipeline, scrap heating storehouse, steel scrap storage bin and steel scrap thermal insulation barn, peace turns have coal gas burner in the air inlet in scrap heating storehouse, the discharging opening of steel scrap storage bin is connected by one section of conveying pipeline for being provided with the first valve with the charging aperture in scrap heating storehouse, the discharging opening in scrap heating storehouse is provided with the conveying pipeline of the second valve by one section and connected with the charging aperture of thermal insulation barn, the discharging opening of thermal insulation barn is connected by one section of conveying pipeline for being provided with the 3rd valve with the lower end of evaporated flue, the upper port of exhaust fume collecting hood and the lower port of evaporated flue are connected, coal gas burner is connected by pipeline with evaporated flue.The heater of the present invention is preheated using high-temperature flue gas burning to steel scrap, come the initial temperature improved, improves the efficiency of converter smelting and the ratio at steel scrap place in the feed in smelting, reduction smelting cost.
Description
Technical field
The present invention relates to technical field of smelting, and in particular to a kind of use converter gas all can heat the heater of steel scrap
And heating means.
Background technology
In metallurgical industry, the source of steelmaking feed mainly has two：Molten iron and steel scrap, steel scrap are the production-goods again reclaimed
Source, therefore there is the low advantage of cost relative to molten iron.Steel mill should be multi-purpose useless with molten iron less as far as possible in smelting
Steel, not only improves protection resource, is conducive to the sustainable development for saving the energy, reducing environmental pollution, promoting resource again.
At present in converter smelting process, the ratio of steel scrap is general in 10-15%, and with social production, steel scrap amount is not
Disconnected accumulation, requires to add a high proportion of steel scrap, favorably in the case that steel scrap has the low advantage of cost compared with molten iron, in convertor steelmaking process
In reduction smelting cost, but converter steelmaking process, reduce after molten iron, increase steel scrap ratio because the heat that converter is produced has
Limit, it is difficult to the rapid steel scrap melted in converter, causes programming rate in early stage stove slow, and steel scrap is difficult to rapid thawing in converter,
Both operating rate is influenceed, the purpose for improving steel scrap ratio is not reached again.
The content of the invention
It is an object of the invention to provide the heater and heating means that a kind of use converter gas all can heat steel scrap,
The problem of ratio is low and efficiency is low of steel scrap is smelted to solve to exist in existing converter steeling technology.
To achieve the above object, the present invention, which provides a kind of use converter gas, all can heat the heater of steel scrap, described
Heater includes exhaust fume collecting hood, evaporated flue, conveying pipeline, top provided with the scrap heating of charging aperture and bottom provided with discharging opening
Storehouse, top are provided with discharging opening provided with the steel scrap storage bin of charging aperture and bottom provided with discharging opening, top provided with charging aperture and bottom
Steel scrap thermal insulation barn, steel scrap storage bin, scrap heating storehouse and steel scrap thermal insulation barn set from high to low successively, the scrap heating
Peace in air inlet and gas outlet, the air inlet in the scrap heating storehouse is provided with the side wall in storehouse and turns have coal gas burner, it is described useless
The discharging opening of steel storage bin is connected by one section of conveying pipeline for being provided with the first valve with the charging aperture in the scrap heating storehouse, institute
The discharging opening for stating scrap heating storehouse is connected by the charging aperture of one section of conveying pipeline and the steel scrap thermal insulation barn for being provided with the second valve
Logical, the discharging opening of the steel scrap thermal insulation barn is connected by the lower end of one section of conveying pipeline and the evaporated flue for being provided with the 3rd valve
Logical, the exhaust fume collecting hood is arranged at the top of converter mouth, and the upper port of the exhaust fume collecting hood and the lower port of evaporated flue are connected, institute
Coal gas burner is stated to connect with the evaporated flue by pipeline.
It is preferred that, the heater also includes the first waste gas purification apparatus, the air inlet of first waste gas purification apparatus
Mouth is connected with the upper port of the evaporated flue.
It is preferred that, the heater also includes the second waste gas purification apparatus, the air inlet of second waste gas purification apparatus
Mouth is connected by pipeline with the gas outlet in the scrap heating storehouse.
It is preferred that, first waste gas purification apparatus is LT nonaqueous dust cleaners or OG hydrofilters, second waste gas
Purifier is sack cleaner.
It is preferred that, the bottom of steel scrap storage bin, scrap heating storehouse and steel scrap thermal insulation barn is in funnel-form.
Corresponding, another object of the present invention is to provide a kind of use converter gas to heat the heating side of steel scrap
Method, the heating means that the use converter gas all can heat steel scrap comprise the following steps：
Step S1, steel scrap is added into steel scrap storage bin；
Step S2, checks in scrap heating storehouse whether there is steel scrap；
Step S3, if not having steel scrap in scrap heating storehouse, opens the first valve, makes the steel scrap in steel scrap storage bin
The first valve is turned off after into scrap heating storehouse, step S4 is gone to；Otherwise step S2 is gone to；
Step S4, the part high-temperature flue gas produced in converter is imported in scrap heating storehouse and lighted, high-temperature flue gas
Steel scrap is heated to preset temperature by the heat that burning is produced；
Step S5, opens the second valve, the steel scrap after heating is fully entered steel scrap thermal insulation barn；
Step S6, if now converter is in the smelting phase, opening the 3rd valve makes the steel scrap after heating enter after converter
The 3rd valve is turned off, if now converter is in the non-smelting phase, the 3rd valve is opened again after converter enters next smelting phase
The steel scrap after heating is set to turn off the 3rd valve after entering converter.
It is preferred that, also perform following steps while step S4 is performed：By the production of scrap heating storehouse high temperature smoke combustion
Raw waste gas imports the second waste gas purification apparatus and purified, and remaining high-temperature flue gas in evaporated flue is imported into the first waste gas purification
Device is purified.
It is preferred that, the scope of the preset temperature is 600-1200 DEG C.
It is preferred that, the temperature range of the high-temperature flue gas is that the CO concentration in 1600-1800 DEG C, the high-temperature flue gas is more than
15%.
The invention has the advantages that：The use converter gas of the present invention all can heat heater and the heating side of steel scrap
Method is preheated by the high-temperature flue gas burning before steel scrap enters converter smelting, produced using converter to steel scrap, to carry
The initial temperature of the entrance converter of high steel scrap, accelerates the speed of converter heating, is given up in the efficiency of raising converter smelting and smelting
Steel material in the feed where ratio, reduce smelting cost.
Brief description of the drawings
Fig. 1 all can heat the structural representation of the heater of steel scrap for the present invention using converter gas.
Fig. 2 all can heat the schematic flow sheet of the heating means of steel scrap for the present invention using converter gas.
Embodiment
Following examples are used to illustrate the present invention, but are not limited to the scope of the present invention.
Embodiment 1
As shown in figure 1, this using converter gas all can heat steel scrap heater include exhaust fume collecting hood 1, evaporated flue 2,
Conveying pipeline 3, scrap heating storehouse 4, steel scrap storage bin 5 and steel scrap thermal insulation barn 6, steel scrap storage bin 5, scrap heating storehouse 4 and steel scrap
Thermal insulation barn 6 is set from high to low successively, and scrap heating storehouse 4, steel scrap storage bin 5 and steel scrap thermal insulation barn 6 are that bottom is in funnel
In the warehouse of shape, scrap heating storehouse 4,6 three warehouses of steel scrap storage bin 5 and steel scrap thermal insulation barn, the top of each warehouse is set
There are charging aperture, bottom to be provided with discharging opening, the side wall in scrap heating storehouse 4 and be provided with air inlet and gas outlet, scrap heating storehouse 4
Air inlet in peace turn have coal gas burner 12, coal gas burner 12 connected by pipeline with evaporated flue 2, and steel scrap storage bin 5 goes out
Material mouth connected by one section of conveying pipeline 3 for being provided with the first valve 7 with the charging aperture in scrap heating storehouse 4, and scrap heating storehouse 4 goes out
Material mouth connected by one section of conveying pipeline 3 for being provided with the second valve 8 with the charging aperture of steel scrap thermal insulation barn 6, and steel scrap thermal insulation barn 6 goes out
Material mouth is connected by one section of conveying pipeline 3 for being provided with the 3rd valve 9 with the lower end of evaporated flue 2, and exhaust fume collecting hood 1 is in inverted funnel
Shape, exhaust fume collecting hood 1 is arranged at the top of the fire door of converter 10, and the upper port of exhaust fume collecting hood 1 is connected with the lower port of evaporated flue 2, collects cigarette
Cover 1 had both entered the entrance of evaporated flue 2 as high-temperature flue gas, entered the outlet of converter 10 as the steel scrap after heating again.
Further, in order to prevent the pollution of the environment, the heater in the present embodiment also includes the first waste gas purification apparatus
11 and second waste gas purification apparatus 13, the air inlet of the first waste gas purification apparatus 11 is connected with the upper port of evaporated flue 2, and second
The air inlet of waste gas purification apparatus 13 is connected by pipeline with the gas outlet in scrap heating storehouse 4, and the first waste gas purification apparatus 11 is
LT nonaqueous dust cleaners or OG hydrofilters, the first waste gas purification apparatus 11 are used to reduce the temperature of high-temperature flue gas and remove height
Dust in warm flue gas, the air inlet of high-temperature flue gas from the first waste gas purification apparatus 11 enters fashionable, and temperature is at 900 DEG C or so, warp
Cross the first waste gas purification apparatus 11 it is cooled and dust separation after, the discharge of the gas outlet of the first waste gas purification apparatus 11
Gas temperature is down to 70 DEG C or so, and dust concentration is down to 50mg/m3Left and right.Second waste gas purification apparatus 13 is sack cleaner,
The waste gas of generation of being burnt in scrap heating storehouse 4 is purified into the second waste gas purification apparatus 13, its dust is reduced content
200mg/m3Within after from gas outlet discharge.By being purified to waste gas and high-temperature flue gas, waste gas and high-temperature flue gas can be prevented
It is directly discharged into air and causes environmental pollution.
As shown in Fig. 2 the present invention also provides a kind of use converter gas and all can heat the heating means of steel scrap, the heating side
Method comprises the following steps：
Step S1, steel scrap is added into steel scrap storage bin 5；
During steel scrap is added into steel scrap storage bin 5, a certain amount of steel scrap can be added, can also be filled it up with useless
Steel material, particular number is determined according to actual needs.
Step S2, checks in scrap heating storehouse 4 whether there is steel scrap；
Step S3, if not having steel scrap in scrap heating storehouse 4, opens the first valve 7, makes useless in steel scrap storage bin 5
Steel material turns off the first valve 7 after entering scrap heating storehouse 4, goes to step S4；Otherwise step S2 is gone to；
When adding steel scrap into scrap heating storehouse 4, if not having steel scrap in scrap heating storehouse 4, the first valve is opened
Door 7, steel scrap under gravity can be automatically into scrap heating storehouse 4, when the steel scrap in scrap heating storehouse 4 reaches one
When quantitative, the first valve 7 is closed；There is steel scrap in scrap heating storehouse 4, the first valve 7 can not be now opened, because if steel scrap
Have steel scrap in heating cabinet 4, open in the first valve 7, steel scrap storage bin 5 unheated steel scrap with scrap heating storehouse 4
It is heated to cross steel scrap mixing, it can reduce the initial temperature that heated steel scrap enters converter 10, not reach in smelting
The purpose of steel scrap ratio is improved during refining, therefore, if having steel scrap in scrap heating storehouse 4, step S2 is gone to.
Step S4, the high-temperature flue gas produced in converter 10 is imported in scrap heating storehouse 4 and lighted, high-temperature flue gas combustion
Burn generation substantial amounts of heat and steel scrap is heated to preset temperature；
Steel scrap enters behind scrap heating storehouse 4, and exhaust fume collecting hood 1 is collected into part high-temperature flue gas and passes through coal gas by evaporated flue 2
Burner 12 is sprayed into scrap heating storehouse 4 and lighted, during the temperature range of high-temperature flue gas is 1600-1800 DEG C, high-temperature flue gas
CO concentration be more than 15%, high-temperature flue gas burning produces substantial amounts of heat and is heated to preset by the steel scrap in scrap heating storehouse 4
Temperature, the span of preset temperature is 600-1200 DEG C, and in the case where not considering that heat scatters and disappears, preset temperature is equal to steel scrap
Material enters the initial temperature of converter 10, therefore preset temperature is higher, is more conducive to improving the ratio of steel scrap, vapour in smelting process
Change flue 2 and exhaust fume collecting hood 1 is collected into remainder high-temperature flue gas is introduced directly into the first waste gas purification apparatus 11 and purified.
Step S5, opens the second valve 8, the steel scrap after heating is fully entered steel scrap thermal insulation barn 6；
Step S6, if now converter 10 is in the smelting phase, opening the 3rd valve 9 makes the steel scrap after heating enter converter
The 3rd valve 9 is turned off after 10, if now converter 10 is in the non-smelting phase, is opened again after converter 10 enters next smelting phase
3rd valve 9 makes the steel scrap after heating turn off the 3rd valve 9 after entering converter 10；
Steel scrap in scrap heating storehouse 4 is fully entered after steel scrap thermal insulation barn 6, if now converter 10 is in the smelting phase,
The 3rd valve 9 is opened, the steel scrap after heating is treated in converter 10 by entering after conveying pipeline 3 from the lower port of exhaust fume collecting hood 1 in converter 10
Steel scrap reach it is a certain amount of after turn off the 3rd valve 9, if now converter 10 is in the non-smelting phase, treat converter 10 enter it is next
Opening the 3rd valve 9 after the smelting phase again makes the steel scrap after a certain amount of heating turn off the 3rd valve 9 after entering converter 10.
Further, for energy-conserving and environment-protective, following steps are also performed while step S4 is performed：By in scrap heating storehouse
The waste gas that high-temperature flue gas burning is produced imports the second waste gas purification apparatus and purified, and remaining high-temperature flue gas in evaporated flue is led
Enter the first waste gas purification apparatus to be purified.
The heater and heating means of the present invention has following characteristics：
1st, steel scrap heat content is high
Steel scrap increases to 600-1200 degrees Celsius by normal temperature, and steel scrap 10 per ton can improve more than heat 405MJ.
2nd, the heating-up time is shortened in stove
Converter 10 is smelted initial stage, the steel scrap of identical ratio, during such as 40% scrap ratio, and in-furnace temperature rises to logical at 1650 DEG C
The method crossed the heating steel scrap of the invention of this law and improve smelting scrap ratio can shorten time 40-60 second.
3rd, improve and smelt scrap ratio
After the technology, 60-180 tons of converters 10 can improve scrap ratio to 60% in smelting, effectively reduction converter 10
Smelting cost, reduces energy consumption.
Although above with general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be modified or improved, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements, belong to the scope of protection of present invention without departing from theon the basis of the spirit of the present invention.
Claims (9)
1. a kind of use converter gas all can heat the heater of steel scrap, the heater include exhaust fume collecting hood, evaporated flue,
Conveying pipeline, top are provided with out provided with the scrap heating storehouse of charging aperture and bottom provided with discharging opening, top provided with charging aperture and bottom
The steel scrap storage bin of material mouth, top are provided with the steel scrap thermal insulation barn of discharging opening provided with charging aperture and bottom, it is characterised in that steel scrap is stored up
Feed bin, scrap heating storehouse and steel scrap thermal insulation barn are set from high to low successively, be provided with the side wall in the scrap heating storehouse into
Peace turns have coal gas burner in gas port and gas outlet, the air inlet in the scrap heating storehouse, and the discharging opening of the steel scrap storage bin leads to
Cross one section of conveying pipeline for being provided with the first valve to connect with the charging aperture in the scrap heating storehouse, the discharging in the scrap heating storehouse
Mouth is connected by one section of conveying pipeline for being provided with the second valve with the charging aperture of the steel scrap thermal insulation barn, the steel scrap thermal insulation barn
Discharging opening is connected by one section of conveying pipeline for being provided with the 3rd valve with the lower end of the evaporated flue, and the exhaust fume collecting hood is arranged at
The top of converter mouth, the upper port of the exhaust fume collecting hood and the lower port of evaporated flue are connected, and the coal gas burner passes through pipeline
Connected with the evaporated flue.
2. use converter gas according to claim 1 all can heat the heater of steel scrap, it is characterised in that described to add
Thermal also includes the first waste gas purification apparatus, the air inlet of first waste gas purification apparatus and the upper end of the evaporated flue
Mouth connection.
3. use converter gas according to claim 2 all can heat the heater of steel scrap, it is characterised in that described to add
Thermal also includes the second waste gas purification apparatus, and the air inlet of second waste gas purification apparatus is added by pipeline with the steel scrap
The gas outlet connection in hot storehouse.
4. use converter gas according to claim 3 all can heat the heater of steel scrap, it is characterised in that described
One waste gas purification apparatus is LT nonaqueous dust cleaners or OG hydrofilters, and second waste gas purification apparatus is sack cleaner.
5. use converter gas according to claim 1 all can heat the heater of steel scrap, it is characterised in that steel scrap is stored up
The bottom of feed bin, scrap heating storehouse and steel scrap thermal insulation barn is in funnel-form.
6. a kind of use converter gas all can heat the heating means of steel scrap, it is characterised in that the use converter gas is all-round
The heating means of heating steel scrap comprise the following steps：
Step S1, steel scrap is added into steel scrap storage bin；
Step S2, checks in scrap heating storehouse whether there is steel scrap；
Step S3, if not having steel scrap in scrap heating storehouse, opens the first valve, enters the steel scrap in steel scrap storage bin
The first valve is turned off behind scrap heating storehouse, step S4 is gone to；Otherwise step S2 is gone to；
Step S4, the part high-temperature flue gas produced in converter is imported in scrap heating storehouse and lighted, high-temperature flue gas burning
Steel scrap is heated to preset temperature by the heat of generation；
Step S5, opens the second valve, the steel scrap after heating is fully entered steel scrap thermal insulation barn；
Step S6, if now converter is in the smelting phase, opening the 3rd valve makes the steel scrap after heating be closed again after entering converter
The 3rd valve is closed, if now converter is in the non-smelting phase, opening the 3rd valve again after converter enters next smelting phase makes to add
Steel scrap after heat turns off the 3rd valve after entering converter.
7. use converter gas according to claim 6 all can heat the heating means of steel scrap, it is characterised in that perform
Following steps are also performed while step S4：It is net that the waste gas that scrap heating storehouse high temperature smoke combustion is produced imports the second waste gas
Makeup, which is put, to be purified, and remaining high-temperature flue gas in evaporated flue is imported into the first waste gas purification apparatus is purified.
8. use converter gas according to claim 6 all can heat the heating means of steel scrap, it is characterised in that described pre-
If the scope of temperature is 600-1200 DEG C.
9. use converter gas according to claim 6 all can heat the heating means of steel scrap, it is characterised in that the height
The temperature range of warm flue gas is that the CO concentration in 1600-1800 DEG C, the high-temperature flue gas is more than 15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643350.3A CN107267709A (en) | 2017-07-31 | 2017-07-31 | A kind of use converter gas all can heat the heater and heating means of steel scrap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643350.3A CN107267709A (en) | 2017-07-31 | 2017-07-31 | A kind of use converter gas all can heat the heater and heating means of steel scrap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107267709A true CN107267709A (en) | 2017-10-20 |
Family
ID=60075241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710643350.3A Pending CN107267709A (en) | 2017-07-31 | 2017-07-31 | A kind of use converter gas all can heat the heater and heating means of steel scrap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107267709A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660287A (en) * | 2018-07-02 | 2018-10-16 | 邯郸钢铁集团有限责任公司 | A kind of LF stoves steel scrap adding set and adding method |
| CN109971916A (en) * | 2019-04-01 | 2019-07-05 | 东北大学 | A kind of device and method using converter waste gas preheating scrap |
| CN110423860A (en) * | 2019-09-03 | 2019-11-08 | 苏州正益诚新能源科技有限公司 | A kind of scrap steel preheating furnace |
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| CN102627414A (en) * | 2012-03-31 | 2012-08-08 | 济钢集团国际工程技术有限公司 | Device for realizing waste heat recovery by directly calcining lime through primary high-temperature flue gas of converter |
| CN204100774U (en) * | 2013-09-16 | 2015-01-14 | 王洪东 | The simple and easy scrap preheater of electric arc furnaces |
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| CN105132619A (en) * | 2015-09-09 | 2015-12-09 | 郭智宜 | Scrap steel preheating and continuous feeding system constructed based on waste heat recovering channel of electric-arc furnace and application method of system |
| CN105865193A (en) * | 2016-05-30 | 2016-08-17 | 中冶赛迪工程技术股份有限公司 | Sealed charging device and flue gas temperature control method of electric-arc furnace |
| CN207175995U (en) * | 2017-07-31 | 2018-04-03 | 安徽盛博冶金环保科技有限公司 | A kind of heater that steel scrap all can be heated using converter gas |
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| RU2293938C1 (en) * | 2005-09-29 | 2007-02-20 | Общество с ограниченной ответственностью "СЛОТ" | Scrap heater of electric-arc steel-melting mean- and low- power furnace by means of flue gases |
| CN102627414A (en) * | 2012-03-31 | 2012-08-08 | 济钢集团国际工程技术有限公司 | Device for realizing waste heat recovery by directly calcining lime through primary high-temperature flue gas of converter |
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| CN104807341A (en) * | 2015-05-20 | 2015-07-29 | 中冶赛迪工程技术股份有限公司 | System and technology for purifying electric furnace flue gas and simultaneously utilizing waste heat |
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| CN207175995U (en) * | 2017-07-31 | 2018-04-03 | 安徽盛博冶金环保科技有限公司 | A kind of heater that steel scrap all can be heated using converter gas |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660287A (en) * | 2018-07-02 | 2018-10-16 | 邯郸钢铁集团有限责任公司 | A kind of LF stoves steel scrap adding set and adding method |
| CN109971916A (en) * | 2019-04-01 | 2019-07-05 | 东北大学 | A kind of device and method using converter waste gas preheating scrap |
| CN109971916B (en) * | 2019-04-01 | 2020-04-14 | 东北大学 | Device and method for preheating scrap steel by using converter waste gas |
| CN110423860A (en) * | 2019-09-03 | 2019-11-08 | 苏州正益诚新能源科技有限公司 | A kind of scrap steel preheating furnace |
| CN110423860B (en) * | 2019-09-03 | 2024-01-05 | 苏州正益诚新能源科技有限公司 | Scrap steel preheating furnace |
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