CN114736697A - Heating method of dry quenching furnace - Google Patents
Heating method of dry quenching furnace Download PDFInfo
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- CN114736697A CN114736697A CN202210384754.6A CN202210384754A CN114736697A CN 114736697 A CN114736697 A CN 114736697A CN 202210384754 A CN202210384754 A CN 202210384754A CN 114736697 A CN114736697 A CN 114736697A
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- furnace
- dry quenching
- temperature
- gas
- coke
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- 238000010791 quenching Methods 0.000 title claims abstract description 45
- 230000000171 quenching effect Effects 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 title claims description 10
- 239000000571 coke Substances 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 13
- 230000000630 rising effect Effects 0.000 claims abstract description 9
- 238000002485 combustion reaction Methods 0.000 claims description 16
- 238000001035 drying Methods 0.000 claims description 11
- 230000009471 action Effects 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 238000003860 storage Methods 0.000 claims description 4
- 239000003034 coal gas Substances 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 230000003028 elevating effect Effects 0.000 claims 1
- 239000007789 gas Substances 0.000 description 25
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 239000011819 refractory material Substances 0.000 description 3
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 239000011449 brick Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910001021 Ferroalloy Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 239000011572 manganese Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000007601 warm air drying Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B39/00—Cooling or quenching coke
- C10B39/02—Dry cooling outside the oven
-
- 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
The invention provides a temperature rising method of a dry quenching furnace, and relates to the technical field of dry quenching furnaces. This based on coke dry quenching stove, including the coke dry quenching stove, the coke dry quenching stove includes from top to bottom in proper order: the pre-storing section is mainly used for receiving temporarily loaded red coke, has a buffer function and can compensate fluctuation generated, the chute area is positioned between the pre-storing section and the cooling section, and circulating gas absorbs sensible heat of the red coke and is discharged through the chute area and the annular air passage to carry out heat exchange.
Description
Technical Field
The invention relates to the technical field of dry quenching furnaces, in particular to a heating method of a dry quenching furnace.
Background
The iron and steel industry is an industrial industry which mainly carries out industrial production activities such as ferrous metal mineral mining and selection, ferrous metal smelting and processing and the like, and comprises the mineral mining and selection industries of metallic iron, chromium, manganese and the like, iron making industry, steel processing industry, ferroalloy smelting industry, steel wire and product industry and other segmentation industries, and is one of the national important raw material industries. In addition, since steel production also involves other industrial sectors such as non-metallic mineral mining and products, such as coking, refractories, carbon products, etc., these industrial sectors are also generally included in the steel industry.
The method plays a great role in controlling environmental pollution, saving energy, improving economic benefit and the like of a dry quenching technology applied to the steel industry, the dry quenching process is superior to wet quenching in the aspects of energy conservation, environmental protection, coke quality improvement and the like, the temperature rise time is effectively shortened, the temperature is effectively controlled, and the use effect is improved.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a heating method of a dry quenching furnace, which solves the problem of poor heating effect of the dry quenching furnace.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: the coke dry quenching furnace comprises a coke dry quenching furnace, wherein the coke dry quenching furnace sequentially comprises the following components from top to bottom: the device comprises a pre-storing section, a chute area and a cooling section, wherein the periphery of the pre-storing section is provided with 36 annular air passages for collecting chute airflow, and an air introduction device, a circulating masonry bypass device and an airflow adjusting device are arranged in the annular air passages.
Preferably, the prestoring section comprises a level indicator, a pressure measuring device, a temperature measuring device and a diffusing device, and is mainly used for receiving the red coke which is loaded temporarily.
Preferably, the chute area is positioned between the pre-storing section and the cooling section, and the circulating gas absorbs the sensible heat of the red coke and is discharged through the chute area and the annular air passage to exchange heat.
Preferably, the cooling section comprises a temperature measuring hole, a drying steam discharging hole, a manhole and a furnace drying hole.
A temperature rising method of a dry quenching furnace comprises the following temperature rising steps:
s1, drying the dry quenching furnace by warm air to dry the moisture in the refractory brickwork of the dry quenching tank and the primary dust remover, and avoiding the moisture in the brickwork from becoming high-temperature steam under the action of high temperature after red coke is loaded;
s2, introducing a gas burner into the furnace from a furnace drying hole of a cooling section of the dry quenching furnace, wherein one end of the gas burner is positioned at the center position in the furnace to prepare for heating gas combustion in the furnace;
s3, the gas burner is used for ignition and combustion, the temperature in the furnace is increased, when the flame of the gas combustion is red, the air introduction amount is increased through the air introduction device, when the flame of the gas combustion is bright, the air introduction amount is reduced through the air introduction device, the gas introduction amount is increased, when the flame of the gas combustion pulsates, circulating gas can be properly increased, effective monitoring and protection are carried out, and flameout is prevented;
s4, when the coal gas is combusted, the pressure in the furnace is measured through the pressure measuring device, the required pressure value in the furnace is kept, the temperature in the furnace is measured at any time through the temperature measuring device, the phenomenon that the temperature rises too fast is avoided, and when the temperature rises too fast, circulating gas can be properly added to avoid the phenomenon that the temperature rises too fast;
s5, when the temperature of the pre-storage section in the coke dry quenching furnace is raised to about 800 ℃, the temperature in the furnace is kept, and then the coke oven can be filled with red coke to carry out start-up operation.
(III) advantageous effects
The invention provides a heating method of a dry quenching furnace. The method has the following beneficial effects:
1. the warm air drying mainly aims at removing moisture of a dry quenching tank and a refractory material masonry of a primary dust collector, the temperature of the whole system is slowly increased through large-flow warm air, and the problem that after red coke is filled, the moisture of the masonry can be changed into high-temperature water vapor under the action of high temperature, so that some water-containing low-temperature refractory bricks are cracked and even corroded to influence the safe use of the dry quenching furnace is avoided.
2. The gas burner is used for heating the furnace by burning gas, the air introduction amount is adjusted by the temperature rising state in the furnace, the combustion temperature rising protection is carried out, and the potential safety hazard caused by too fast temperature rising in the furnace can be effectively avoided.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
as shown in fig. 1, an embodiment of the present invention provides a dry quenching furnace, including a dry quenching furnace, which sequentially includes, from top to bottom: prestoring section, chute district and cooling section, prestoring section's periphery collects 36 annular air flue of chute air current, be provided with air induction device in the annular air flue, circulation brickwork bypass device and air current adjusting device, prestoring section includes the charge level indicator, pressure measurement device, temperature measuring device and diffusing device, through temperature measuring device, carry out temperature measurement, and transmit the controlling means department that the outer end is connected with measured temperature, and carry out accurate control to circulating temperature through controlling means and use, prestoring section mainly is used for accepting the red burnt of short duration of packing in, have the buffer function, the fluctuation that can compensate the production, chute district is located prestoring section and cooling section, discharge through chute district and annular air flue after circulating gas absorbs the sensible heat of red burnt, carry out the heat exchange, the cooling section includes temperature measurement hole, dry steam drain hole, manhole and baker hole.
A temperature rising method of a dry quenching furnace comprises the following temperature rising steps:
s1, drying the dry quenching furnace by warm air to dry the moisture contained in the refractory material masonry of the dry quenching tank and the primary dust remover, and avoiding the moisture of the masonry from becoming high-temperature water vapor under the action of high temperature after red coke is loaded;
s2, introducing a gas burner into the furnace from a furnace drying hole of a cooling section of the dry quenching furnace, wherein one end of the gas burner is positioned at the center position in the furnace to prepare for heating gas combustion in the furnace;
s3, the gas burner is used for ignition and combustion, the temperature in the furnace is increased, when the flame of the gas combustion is red, the air introduction amount is increased through the air introduction device, when the flame of the gas combustion is bright, the air introduction amount is reduced through the air introduction device, the gas introduction amount is increased, when the flame of the gas combustion pulsates, circulating gas can be properly increased, effective monitoring and protection are carried out, and flameout is prevented;
s4, when the coal gas is combusted, the pressure in the furnace is measured through the pressure measuring device, the required pressure value in the furnace is kept, the temperature in the furnace is measured at any time through the temperature measuring device, the phenomenon that the temperature rises too fast is avoided, and when the temperature rises too fast, circulating gas can be properly added to avoid the phenomenon that the temperature rises too fast;
s5, when the temperature of the pre-storage section in the coke dry quenching furnace is raised to about 800 ℃, the temperature in the furnace is kept, and then the coke oven can be filled with red coke to carry out start-up operation.
In the step S1, high-temperature steam can scour mortar joints of the masonry in the process of overflowing from the masonry, mortar joints and fire mud fall off, certain water-containing low-temperature refractory bricks can crack and even degrade, and meanwhile, when the steam passes through a red coke layer, the steam reacts with the red coke layer to generate a large amount of hydrogen and carbon monoxide, so that the concentration of combustible components in circulating gas can rise sharply, and the safe use of the dry quenching furnace is seriously influenced.
Among these, the purpose of drying the dry quenching furnace with warm air in the step S1 is to remove the water content in the masonry in a controlled and safe manner and to prepare conditions for the start-up of production.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A dry quenching furnace comprises a dry quenching furnace, and is characterized in that: the dry quenching furnace sequentially comprises from top to bottom: the device comprises a pre-storing section, a chute area and a cooling section, wherein the periphery of the pre-storing section is provided with 36 annular air passages for collecting chute airflow, and an air introduction device, a circulating masonry bypass device and an airflow adjusting device are arranged in the annular air passages.
2. A dry quenching oven as claimed in claim 1, characterized in that: the pre-storage section comprises a charge level indicator, a pressure measuring device, a temperature measuring device and a diffusing device, and is mainly used for receiving the red coke which is loaded temporarily.
3. A dry quenching oven as claimed in claim 1, characterized in that: the chute area is positioned between the pre-storing section and the cooling section, and the circulating gas absorbs the sensible heat of the red coke and is discharged through the chute area and the annular air passage to exchange heat.
4. A dry quenching oven as claimed in claim 1, characterized in that: the cooling section comprises a temperature measuring hole, a drying steam discharging hole, a manhole and a furnace drying hole.
5. The method for elevating the temperature of a dry quenching furnace according to claim 1, wherein: comprises the following temperature rising steps:
s1, drying the dry quenching furnace by warm air to dry the moisture in the refractory brickwork of the dry quenching tank and the primary dust remover, and avoiding the moisture in the brickwork from becoming high-temperature steam under the action of high temperature after red coke is loaded;
s2, introducing a gas burner into the furnace from a furnace drying hole of a cooling section of the dry quenching furnace, wherein one end of the gas burner is positioned at the center position in the furnace to prepare for heating gas combustion in the furnace;
s3, the gas burner is used for ignition and combustion, the temperature in the furnace is increased, when the flame of the gas combustion is red, the air introduction amount is increased through the air introduction device, when the flame of the gas combustion is bright, the air introduction amount is reduced through the air introduction device, the gas introduction amount is increased, when the flame of the gas combustion pulsates, circulating gas can be properly increased, effective monitoring and protection are carried out, and flameout is prevented;
s4, when the coal gas is combusted, the pressure in the furnace is measured through the pressure measuring device, the required pressure value in the furnace is kept, the temperature in the furnace is measured at any time through the temperature measuring device, the phenomenon that the temperature rises too fast is avoided, and when the temperature rises too fast, circulating gas can be properly added to avoid the phenomenon that the temperature rises too fast;
s5, when the temperature of the pre-storage section in the coke dry quenching furnace is raised to about 800 ℃, the temperature in the furnace is kept, and then the coke oven can be filled with red coke to carry out start-up operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210384754.6A CN114736697A (en) | 2022-04-13 | 2022-04-13 | Heating method of dry quenching furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210384754.6A CN114736697A (en) | 2022-04-13 | 2022-04-13 | Heating method of dry quenching furnace |
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| Publication Number | Publication Date |
|---|---|
| CN114736697A true CN114736697A (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210384754.6A Pending CN114736697A (en) | 2022-04-13 | 2022-04-13 | Heating method of dry quenching furnace |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304369A (en) * | 2011-08-12 | 2012-01-04 | 重庆钢铁(集团)有限责任公司 | Oven-drying working process for coke dry quenching system |
| CN203159531U (en) * | 2013-03-18 | 2013-08-28 | 北京华泰焦化工程技术有限公司 | System for controlling air introduction amount of dry quenching furnace |
| CN106967448A (en) * | 2017-04-07 | 2017-07-21 | 安阳钢铁股份有限公司 | A kind of furnace drying method after the resistance to material large area replacing of dry quenching system |
| CN109233872A (en) * | 2018-11-09 | 2019-01-18 | 榆林学院 | A kind of factory's coke dry quenching furnace and dry coke quenching system |
| CN212102684U (en) * | 2020-04-01 | 2020-12-08 | 山东四化环保节能工程有限公司 | Auxiliary dust removal system for dry quenching loading device |
| CN212102683U (en) * | 2020-04-01 | 2020-12-08 | 山东四化环保节能工程有限公司 | Energy-saving economical dry quenching device |
| CN212833608U (en) * | 2020-06-22 | 2021-03-30 | 宜兴市钰玺窑业有限公司 | Structure is restoreed fast to dry quenching stove chute district inside lining |
| CN112812790A (en) * | 2021-02-05 | 2021-05-18 | 中冶焦耐(大连)工程技术有限公司 | Dry quenching furnace body structure with processing capacity of 210-230t/h |
-
2022
- 2022-04-13 CN CN202210384754.6A patent/CN114736697A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102304369A (en) * | 2011-08-12 | 2012-01-04 | 重庆钢铁(集团)有限责任公司 | Oven-drying working process for coke dry quenching system |
| CN203159531U (en) * | 2013-03-18 | 2013-08-28 | 北京华泰焦化工程技术有限公司 | System for controlling air introduction amount of dry quenching furnace |
| CN106967448A (en) * | 2017-04-07 | 2017-07-21 | 安阳钢铁股份有限公司 | A kind of furnace drying method after the resistance to material large area replacing of dry quenching system |
| CN109233872A (en) * | 2018-11-09 | 2019-01-18 | 榆林学院 | A kind of factory's coke dry quenching furnace and dry coke quenching system |
| CN212102684U (en) * | 2020-04-01 | 2020-12-08 | 山东四化环保节能工程有限公司 | Auxiliary dust removal system for dry quenching loading device |
| CN212102683U (en) * | 2020-04-01 | 2020-12-08 | 山东四化环保节能工程有限公司 | Energy-saving economical dry quenching device |
| CN212833608U (en) * | 2020-06-22 | 2021-03-30 | 宜兴市钰玺窑业有限公司 | Structure is restoreed fast to dry quenching stove chute district inside lining |
| CN112812790A (en) * | 2021-02-05 | 2021-05-18 | 中冶焦耐(大连)工程技术有限公司 | Dry quenching furnace body structure with processing capacity of 210-230t/h |
Non-Patent Citations (1)
| Title |
|---|
| 罗时政: "干熄焦技术问答", 冶金工业出版社, pages: 30 - 31 * |
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