CN106702076B - Method for preventing converter smoke dust from polluting environment - Google Patents

Method for preventing converter smoke dust from polluting environment Download PDF

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Publication number
CN106702076B
CN106702076B CN201510790899.6A CN201510790899A CN106702076B CN 106702076 B CN106702076 B CN 106702076B CN 201510790899 A CN201510790899 A CN 201510790899A CN 106702076 B CN106702076 B CN 106702076B
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China
Prior art keywords
converter
button
spray nozzle
tapping
hydraulic spray
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CN201510790899.6A
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Chinese (zh)
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CN106702076A (en
Inventor
刘文飞
金百刚
王鲁毅
李超
马宁
李海峰
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Angang Steel Co Ltd
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Angang Steel Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28Manufacture of steel in the converter
    • C21C5/38Removal of waste gases or dust

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

The invention provides a method for preventing converter smoke dust from polluting environment, which comprises the steps of respectively combining the radius of 1/4 of the front of a converter and the radius of the rest 3/4 of the converter into a group, arranging at least 4 water mist nozzles at the periphery of a converter mouth, arranging an abnormal smoke dust purification button for controlling the blowing process of all the water mist nozzles in a main control room, arranging a hot metal charging furnace gas purification button for controlling the 1/4 water mist nozzles in the front of the converter in a hot metal charging room, and arranging a steel tapping smoke dust purification button for controlling the rest 3/4 water mist nozzles in a steel tapping operation console. Starting a gas purification button of the iron charging furnace during iron charging; starting an abnormal smoke purification button in the blowing process when splashing is about to occur or already occurs in the smelting process; when the first half steel of the duplex converter is tapped, a tapping smoke purification button or an abnormal smoke purification button in the blowing process is opened. The invention can effectively inhibit and purify the converter smoke dust, greatly reduce the pollution of harmful smoke dust to the air inside and outside the plant and the environment, improve the production working environment and the air quality, and ensure the health of workers and nearby residents.

Description

A method of prevent converter dust from polluting environment
Technical field
The invention belongs to make steel environmental protection technical field more particularly to one kind to prevent converter iron making from spilling iron, blowing splash Or in preceding half steel tapping process dust polluting environment method.
Background technology
Converter unavoidably has partial molten iron scraping collision fire door in iron making, to generate volume of smoke gas.Meanwhile turning It is various physics, a chemical reaction process acutely carried out in stove converting process, in converter, if do not reacted these Particularly effective control is carried out, then will appear excessive clinker or even splash, the quick-fried phenomenon of spray, converter in addition is one continuous big raw Container is produced, the splash of converting process quick-fried with spray is substantially to avoid completely.And once occur splash and spray it is quick-fried, due to Gas discharge amount is far longer than the dust collection capacity of petticoat pipe, and outside also generates volume of smoke so that is shrouded completely in workshop In flue dust.When the preceding half steel tapping steel that in addition converter duplex is smelted, carbon content when due to tapping is high, and Sheng steel used Container is also hot-metal bottle, due to the effect of residual oxygen in steel, necessarily will produce the red cigarette based on a large amount of FeO particles.
The flue dust that converter generates in above process is mainly made of various small iron filings and FeO particles etc., these Harmful substance is inhaled into vivo, very serious to the body harm of people, is worked in such a case for a long time, is suffered from silicosis disease Probability is very big, and the fume amount generated when iron making sometimes is excessive, is exactly outside workshop it can be seen that billowing black smoke, this is to surrounding The air of extensive area is also a kind of very serious pollution, or even can promote the formation of near zone haze weather.
Invention content
The present invention provides a kind of method preventing converter dust pollution environment, and purpose is intended to inhibit and purify converter cigarette Dirt reduces pollution of the noxious fume to factory's inner air and outer air, improves production work environment and air quality.
For this purpose, the technical solution that the present invention is taken is:
A method of prevent converter dust from polluting environment, specific method is:
(1) at least four hydraulic spray nozzle, hydraulic spray nozzle horizontal direction distance converter movable is arranged in surrounding on converter mouth Petticoat pipe outer distance >=0.5m, hydraulic spray nozzle extreme lower position are above lower edge when reaching limes superiors position away from converter movable hood At 0.8~1.2 meter;
(2) hydraulic spray nozzle is divided into two groups, and 1/4 radius is one group before Converter, remaining 3/4 radius is one group;
(3) switch of hydraulic spray nozzle uses remote control, the converting process of the whole hydraulic spray nozzles of master control room setting control different Normal clarifying smoke button, the iron making flue gas cleaning button of stokehold iron making room setting control 1/4 hydraulic spray nozzle of stokehold, tapping steel platform The tapping clarifying smoke button for controlling remaining 3/4 hydraulic spray nozzle is set;
(4) hydraulic spray nozzle flow is reached the annulus area at fire door and can be covered around fire door with the atomized water sprayed is Standard, and away from fire door outer >=2m;
(5) when stokehold iron making, start iron making flue gas cleaning button, carry out the atomizing of iron making flue dust, iron making is completed Iron making flue gas cleaning button is closed afterwards;
(6) when to occur splash in smelting process or have begun splash, start converting process exception flue dust at once Button is purified, the disperse everywhere of flue dust is inhibited;When splash terminates or after because of splash blunderbuss, it is net to close converting process exception flue dust Change button;
(7) it while the preceding half steel tapping steel smelted in converter duplex starts, opens tapping clarifying smoke button or blows Process exception clarifying smoke button is refined, tapping terminates to close tapping clarifying smoke button or converting process exception clarifying smoke is pressed Button.
Beneficial effects of the present invention are:
The present invention can effectively inhibit and purify converter dust, greatly reduce noxious fume to the inside and outside air of factory and environment Pollution improves production work environment and air quality, ensures the living environment of the health and neighbouring resident of worker, be conducive to Realize the green production of heavy industry enterprise.
It is not any to high temperature liquid iron or molten steel since the water that the water mist that hydraulic spray nozzle of the present invention sprays generates is smaller It influences, therefore any security risk will not be caused for converter smelting.
Specific implementation mode
By taking 260 tons of top and bottom combined blown converters as an example, hydraulic spray nozzle using conticaster hydraulic spray nozzle.
1, surrounding is uniformly arranged 8 hydraulic spray nozzles on converter mouth.Hydraulic spray nozzle horizontal direction distance converter movable Petticoat pipe outer diameter is more than or equal to 1m, and short transverse reaches the lower 1 meter above position of limes superiors away from converter movable hood.
2, hydraulic spray nozzle is divided into two groups, and 1/4 radius of stokehold is one group, remaining 3/4 radius is one group.
3, the switch of hydraulic spray nozzle is remote control, at master control room one, at stokehold iron making houselet one, and tapping steel platform one Place.
4, hydraulic spray nozzle flow, which is subject to the annulus area that the atomized water that sprays reaches at fire door, to cover around fire door, Atomized water is away from fire door outer 2.3m.
5, when stokehold iron making, start iron making flue gas cleaning button, flue gas cleaning button is closed after the completion of iron making.
6, when smelting process discovery splash will occurs or have begun splash, it is net to start converting process exception flue dust at once Change button, when splash terminates or after because of splash blunderbuss, closes converting process exception clarifying smoke button.
7, while the preceding half steel tapping steel smelted in converter duplex starts, tapping clarifying smoke button, tapping are opened Terminate to close tapping clarifying smoke button.Certainly, it while the preceding half steel tapping steel smelted in converter duplex starts, can also open Converting process exception clarifying smoke button is opened, same effect can also be reached by enabling whole nozzles.

Claims (1)

1. a kind of method preventing converter dust pollution environment, it is characterised in that:
(1) at least four hydraulic spray nozzle, hydraulic spray nozzle horizontal direction distance converter movable hood is arranged in surrounding on converter mouth Outer distance >=0.5m, hydraulic spray nozzle extreme lower position be away from converter movable hood reach limes superiors position when lower edge above 0.8~ At 1.2 meters;
(2) hydraulic spray nozzle is divided into two groups, and 1/4 radius is one group before Converter, remaining 3/4 radius is one group;
(3) switch of hydraulic spray nozzle uses remote control, the converting process exception cigarette of the whole hydraulic spray nozzles of master control room setting control Dirt purifies button, the iron making flue gas cleaning button of stokehold iron making room setting control 1/4 hydraulic spray nozzle of stokehold, the setting of tapping steel platform Control the tapping clarifying smoke button of remaining 3/4 hydraulic spray nozzle;
(4) hydraulic spray nozzle flow, which is subject to the annulus area that the atomized water that sprays reaches at fire door, to cover around fire door, and Away from fire door outer >=2m;
(5) when stokehold iron making, start iron making flue gas cleaning button, carry out the atomizing of iron making flue dust, closed after the completion of iron making Close iron making flue gas cleaning button;
(6) when to occur splash in smelting process or have begun splash, start converting process exception clarifying smoke at once Button inhibits the disperse everywhere of flue dust;When splash terminates or after because of splash blunderbuss, closes converting process exception clarifying smoke and presses Button;
(7) it while the preceding half steel tapping steel smelted in converter duplex starts, opens tapping clarifying smoke button or blew Cheng Yichang clarifying smoke buttons, tapping terminate to close tapping clarifying smoke button or converting process exception clarifying smoke button.
CN201510790899.6A 2015-11-17 2015-11-17 Method for preventing converter smoke dust from polluting environment Active CN106702076B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510790899.6A CN106702076B (en) 2015-11-17 2015-11-17 Method for preventing converter smoke dust from polluting environment

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Application Number Priority Date Filing Date Title
CN201510790899.6A CN106702076B (en) 2015-11-17 2015-11-17 Method for preventing converter smoke dust from polluting environment

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CN106702076A CN106702076A (en) 2017-05-24
CN106702076B true CN106702076B (en) 2018-10-09

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108913838A (en) * 2018-08-14 2018-11-30 攀钢集团西昌钢钒有限公司 A method of reducing flue dust in half steel tapping process
CN109055653A (en) * 2018-08-24 2018-12-21 攀钢集团西昌钢钒有限公司 A kind of atomization dust-collecting equipment and method of half cylinder of steel
CN114635010A (en) * 2022-03-30 2022-06-17 鞍钢股份有限公司 Method for realizing rapid tapping at converter end point

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101033497A (en) * 2007-04-06 2007-09-12 上海宝钢工程技术有限公司 Converter coal gas wet-type cloth bag purification recovering process and system
CN101358263A (en) * 2007-08-01 2009-02-04 山东省冶金设计院有限责任公司 Converter gas cooling and purification method
CN101451079A (en) * 2007-11-28 2009-06-10 中冶赛迪工程技术股份有限公司 Converter gas purification and recovery process and system
CN103757176A (en) * 2014-01-26 2014-04-30 江苏博际环境工程科技有限公司 Primary flue gas-coal gas dedusting and deep purification system of converter
CN104561437A (en) * 2014-12-23 2015-04-29 哈尔滨金大环境工程有限公司 Wet tower and venturi type purifying and recycling device for converter smoke and purifying and recycling method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000129330A (en) * 1998-10-26 2000-05-09 Nippon Steel Corp Converter steelmaking method having little metal scattering
JP5869891B2 (en) * 2012-01-19 2016-02-24 株式会社神戸製鋼所 Converter gas recovery system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101033497A (en) * 2007-04-06 2007-09-12 上海宝钢工程技术有限公司 Converter coal gas wet-type cloth bag purification recovering process and system
CN101358263A (en) * 2007-08-01 2009-02-04 山东省冶金设计院有限责任公司 Converter gas cooling and purification method
CN101451079A (en) * 2007-11-28 2009-06-10 中冶赛迪工程技术股份有限公司 Converter gas purification and recovery process and system
CN103757176A (en) * 2014-01-26 2014-04-30 江苏博际环境工程科技有限公司 Primary flue gas-coal gas dedusting and deep purification system of converter
CN104561437A (en) * 2014-12-23 2015-04-29 哈尔滨金大环境工程有限公司 Wet tower and venturi type purifying and recycling device for converter smoke and purifying and recycling method

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