CN101570808A - Converter gas dry dedusting system and explosion-proof device thereof - Google Patents
Converter gas dry dedusting system and explosion-proof device thereof Download PDFInfo
- Publication number
- CN101570808A CN101570808A CNA2009100857841A CN200910085784A CN101570808A CN 101570808 A CN101570808 A CN 101570808A CN A2009100857841 A CNA2009100857841 A CN A2009100857841A CN 200910085784 A CN200910085784 A CN 200910085784A CN 101570808 A CN101570808 A CN 101570808A
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- Prior art keywords
- gas
- explosion
- converter
- dust remover
- dedusting system
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- 239000007789 gas Substances 0.000 claims abstract description 122
- 239000003546 flue gas Substances 0.000 claims abstract description 50
- 239000000428 dust Substances 0.000 claims abstract description 46
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 41
- 238000004880 explosion Methods 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims abstract description 28
- 239000007924 injection Substances 0.000 claims abstract description 28
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 24
- 238000001816 cooling Methods 0.000 claims abstract description 18
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 5
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 5
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000003034 coal gas Substances 0.000 claims 1
- 230000002265 prevention Effects 0.000 claims 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 238000002156 mixing Methods 0.000 description 7
- 238000007664 blowing Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005261 decarburization Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000012717 electrostatic precipitator Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
A converter gas dry dedusting system and an explosion-proof device thereof are provided, wherein the system comprises a cooling device; a dust remover; an explosion-proof device connected to the flue gas pipeline between the cooling device and the dust remover, the explosion-proof device comprises a gas component analyzer, a gas injection device and a control device for detecting CO and O in the flue gas2The gas component analyzer of the content of is installed on an inlet flue gas pipeline of the dust remover; the gas injection device is arranged on a flue gas pipeline between the gas component analyzer and the dust remover; the control device analyzes CO and O detected by the gas component analyzer2Is compared with the explosion limit concentration to control the gas injection deviceOpening or closing the device; the induced draft fan is connected with the dust remover; and the inlet of the switching station is connected with the induced draft fan, the outlet of the switching station is respectively connected with the diffusing chimney and the gas tank, and the flue gas pipeline between the diffusing chimney and the gas tank is switched. The invention can reduce the explosion rate of the dust remover.
Description
Technical Field
The invention relates to a dry dedusting system for converter gas and an explosion-proof device thereof.
Background
As shown in fig. 1, in the steel making process, oxygen blown in by an oxygen lance reacts with carbon in molten iron in a converter 19 ' to generate flue gas rich in CO, the flue gas is cooled by an evaporative cooling flue 11 ', then enters an evaporative cooler 12 ' for direct cooling, is discharged from the evaporative cooler 12 ' at a temperature of 160-220 ℃, and enters an electrostatic precipitator 13 ' through a flue gas pipeline to remove dust; the dedusted flue gas is rapidly switched to enter a diffusion chimney 16 ' or a gas tank 17 ' through a switching station 15 ' under the action of an induced draft fan 14 ', during decarburization, the flue gas with high calorific value is cooled by a gas cooler 18 ' and then sent to the gas tank 17 ', and the flue gas with low calorific value generated in the initial stage and the final stage of oxygen blowing is sent to the diffusion chimney 16 ' to be burned. During the period of stopping the oxygen blowing, the flue gases are also discharged via the emission stack 16'.
The intermittence of the converter operation and the specific smelting period enable air and waste gas (containing CO)2) And the converter gas (containing CO) alternately flows through the electric dust remover and the whole flue gas purification system. In order to avoid the sudden combustion (explosion) caused by the mixing of the gases with different components, the cylindrical electric dust remover can provide an optimal channel for the flowing of the gases according to the principle of fluid mechanics, so that the gases with different components flow in a plunger-shaped manner without being mixed, thereby eliminating the induction factor of the sudden combustion (explosion) of the gases. The two ends of the inlet and the outlet of the shell of the electric dust collector are provided with the explosion relief valves, and when pressure fluctuation caused by sudden combustion (explosion) occurs, the explosion relief valves timely relieve the pressure to protect the electric dust collector.
However, experience shows that the quality or management problem of the explosion discharging valve of the electric dust collector has vibration influence on the positioning of an inner polar plate and a polar line of the dust collector in the explosion discharging process, and the normal work of the converter is influenced because oxygen blowing is interrupted during explosion discharging. Therefore, the explosion problem always restricts the development of dry dust removal of converter gas, and many owners also take the explosion rate as a very important assessment index.
Therefore, it is necessary to research and develop an explosion-proof device which changes passive explosion discharge into active explosion discharge.
Disclosure of Invention
The invention aims to provide a converter gas dry dedusting system and an explosion-proof device thereof, which are used for reducing the explosion rate of a deduster and ensuring the safe operation of the deduster and the normal production of a converter.
The above object of the present invention can be achieved by the following technical solutions,
an explosion-proof device for a converter gas dry dedusting system comprises: gas composition analyzer for detecting CO and O in flue gas2The gas component analyzer is arranged on an inlet flue gas pipeline of a dust remover of the converter gas dry dedusting system; the gas injection device is arranged on a flue gas pipeline between the gas component analyzer and the dust remover; a control device for analyzing the CO and O detected by the gas component analyzer2Is compared with the explosion limit concentration, so as to control the opening or closing of the gas injection device.
The invention also provides a converter gas dry dedusting system, which comprises:
a cooling device; a dust remover; an explosion-proof device connected to the flue gas pipeline between the cooling device and the dust remover, wherein the explosion-proof device comprises a gas component analyzer, a gas injection device and a control device, and is used for detecting CO and O in the flue gas2The gas component analyzer of the content of (a) is installed on an inlet flue gas pipeline of the dust remover; the gas injection device is arranged on a flue gas pipeline between the gas component analyzer and the dust remover; the control device analyzes CO and O detected by the gas component analyzer2Is compared with the explosion limit concentration, so as to control the opening or closing of the gas injection device; the induced draft fan is connected with the dust remover; and the inlet of the switching station is connected with the induced draft fan, the outlet of the switching station is respectively connected with the diffusing chimney and the gas tank, and the flue gas pipeline between the diffusing chimney and the gas tank is switched.
In a preferred embodiment, the cooling means comprises a evaporative cooling flue and an evaporative cooler in communication with each other.
In a preferred embodiment, the gas injection device is a nitrogen gas injection device.
In a preferred embodiment, the dust separator is a fine dust separator.
In a preferred embodiment, the fine dust collector is an electric dust collector.
In a preferred embodiment, the flue gas duct between the switching station and the gas cabinet is further provided with a gas cooler.
The invention has the characteristics and advantages that: the explosion-proof device overcomes the defect of passive explosion discharge, and reduces the explosion rate of the dust remover in a mode of damaging the gas mixing proportion of a flue gas pipeline at the inlet of the dust remover so as to ensure that the gas mixing proportion is not in the explosion limit range, thereby ensuring the safe operation of the dust remover and the normal production of a converter.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,
FIG. 1 is a flow chart of a converter gas dry dedusting system in the related art.
FIG. 2 is a flow chart of the converter gas dry dedusting system 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.
As shown in FIG. 2, the dry dedusting system for converter gas comprises a cooling device, a deduster, an explosion-proof device, an induced draft fan, a switching station, a blow-off chimney and a gas tank.
Wherein the cooling device comprises a vaporization cooling flue 11 and an evaporation cooler 12 which are communicated with each other. An explosion-proof device, which will be described in detail later, is connected to the flue gas duct between the cooling device and the dust separator 13 for preventing the dust separator 13 from exploding. The induced draft fan 14 is connected to the dust separator 13. The inlet of the switching station 15 is connected to the induced draft fan 14, the outlet is respectively connected to the emission chimney 16 and the gas tank 17, and the flue gas pipeline between the emission chimney 16 and the gas tank 17 is switched, so that the flue gas conveyed from the induced draft fan 14 is sent to the emission chimney 16 or the gas tank 17 under the action of the switching station 15.
A gas cooler 18 is further arranged on the flue gas pipeline between the switching station 15 and the gas tank 17.
The high-temperature flue gas generated in a converter 19 of the invention enters an evaporative cooler 12 for direct cooling after being cooled by an evaporative cooling flue 11, then is discharged from the evaporative cooler 12 at the temperature of 160-220 ℃, the cooled flue gas enters a dust remover 13 for dust removal after passing through an explosion-proof device through a flue gas pipeline, then is sent to an induced draft fan 14, and is rapidly switched to the flue gas entering a diffusion chimney 16 or a gas holder 17 through a switching station 15 under the action of the induced draft fan 14, and during decarburization, the flue gas with high calorific value is sent to the gas holder 17 after being cooled by the gas cooler 18, and the flue gas with low calorific value generated at the initial stage and the final stage of oxygen blowing is sent to the diffusion chimney 16 for burning. During the period of stopping the oxygen blowing, the flue gases are also discharged via the bleed stack 16. In other words, the qualified gas is sent to the gas holder 17 for storage, and the unqualified gas is sent to the emission chimney 16 for ignition and emission.
The invention provides an explosion-proof device for a converter gas dry dedusting system, which comprises a gas component analyzer 2, a gas injection device 3 and a control device 4. The gas component analyzer 2 is arranged on an inlet flue gas pipeline of a dust remover 3 of the converter gas dry-method dust removal system and mainly comprises a gas component analyzerFor detecting CO and O in smoke2The content of (A); the gas injection device 3 is installed on a flue gas pipeline between the gas component analyzer 2 and the dust remover 13; the control device 4 analyzes the CO and O detected by the gas composition analyzer 22Is compared with the explosion limit concentration, thereby controlling the opening or closing of the gas injection device 3.
There are three elements due to gas explosion: firstly, the mixing ratio of the combustible gas and the oxygen is in an explosion limit range; secondly, the temperature of the mixed gas is below the lowest ignition temperature; and thirdly, meeting the fire species with enough energy.
When the invention is used, firstly, the gas component analyzer 2 is used for detecting CO and O in the flue gas2The control device 4 analyzes the CO and O detected by the gas component analyzer 22Is compared with the explosion limit concentration (i.e. when the concentration of CO is greater than 9% and at the same time O is present2Is more than 6%) to control the opening or closing of the gas injection device 3. That is, when the control device 4 detects CO and O detected by the gas component analyzer 22The content of (A) is compared with the explosion limit concentration to obtain the CO concentration of more than 9 percent and O2When the concentration of the gas is more than 6 percent, namely when the gas in the flue gas is detected to be in the explosion limit range, the control device 4 controls the gas injection device 3 to inject the gas into the flue gas pipeline, so that the gas injection is stopped after being injected for a set time (for example, 3 to 15 seconds) to destroy the CO and O in the flue gas2The mixing proportion of (2) ensures that the gas in the flue gas is not in the explosion limit range, thereby avoiding explosion; if the control device 4 detects CO and O detected by the gas component analyzer 22After the content of the gas is compared with the explosion limit concentration, when the gas content of the detected smoke is not in the explosion limit range, the control device 4 controls the gas injection device 3 to be closed. That is, the present invention avoids explosion by destroying the first element of the three elements of gas explosion, i.e., by destroying the mixing ratio of the gas.
In a preferred embodimentIn the formula, the gas injection device 3 is a nitrogen gas injection device, that is, the gas injected by the device is nitrogen gas. The gas ejected from the gas ejection device 3 may be an inert gas or CO2Or water vapor, etc., all of which can destroy CO and O2The mixing ratio of (a).
The dust collector may be a fine dust collector, such as an electric dust collector.
The above description is only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.
Claims (10)
1. An explosion-proof device for a converter gas dry dedusting system, which is characterized by comprising:
gas composition analyzer for detecting CO and O in flue gas2The gas component analyzer is arranged on an inlet flue gas pipeline of a dust remover of the converter gas dry dedusting system;
the gas injection device is arranged on a flue gas pipeline between the gas component analyzer and the dust remover;
a control device for controlling the operation of the motorCO and O detected by the gas component analyzer2Is compared with the explosion limit concentration, so as to control the opening or closing of the gas injection device.
2. The explosion prevention device for the dry dedusting system of the converter gas according to claim 1, wherein the gas injection device is a nitrogen gas injection device.
3. The explosion-proof device for the dry dedusting system of the converter gas according to claim 1, wherein the deduster is a fine deduster.
4. The explosion-proof device for the dry dedusting system of the converter gas according to claim 3, wherein the fine deduster is an electric deduster.
5. A converter coal gas dry dedusting system is characterized by comprising:
a cooling device;
a dust remover;
an explosion-proof device connected to the flue gas pipeline between the cooling device and the dust remover, wherein the explosion-proof device comprises a gas component analyzer, a gas injection device and a control device, and is used for detecting CO and O in the flue gas2The gas component analyzer of the content of (a) is installed on an inlet flue gas pipeline of the dust remover; the gas injection device is arranged on a flue gas pipeline between the gas component analyzer and the dust remover; the control device analyzes CO and O detected by the gas component analyzer2Is compared with the explosion limit concentration, so as to control the opening or closing of the gas injection device;
the induced draft fan is connected with the dust remover;
and the inlet of the switching station is connected with the induced draft fan, the outlet of the switching station is respectively connected with the diffusing chimney and the gas tank, and the flue gas pipeline between the diffusing chimney and the gas tank is switched.
6. The dry dedusting system for converter gas according to claim 5, wherein the cooling device comprises an evaporation cooling flue and an evaporation cooler which are communicated with each other.
7. The converter gas dry dedusting system of claim 5, wherein the gas injection device is a nitrogen gas injection device.
8. The converter gas dry dedusting system of claim 5, wherein the deduster is a fine deduster.
9. The converter gas dry dedusting system of claim 8, wherein the fine deduster is an electric deduster.
10. The converter gas dry dedusting system of claim 5, wherein a gas cooler is further disposed in the flue gas duct between the switching station and the gas cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100857841A CN101570808A (en) | 2009-05-31 | 2009-05-31 | Converter gas dry dedusting system and explosion-proof device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100857841A CN101570808A (en) | 2009-05-31 | 2009-05-31 | Converter gas dry dedusting system and explosion-proof device thereof |
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| CN101570808A true CN101570808A (en) | 2009-11-04 |
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| CNA2009100857841A Pending CN101570808A (en) | 2009-05-31 | 2009-05-31 | Converter gas dry dedusting system and explosion-proof device thereof |
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101875993A (en) * | 2010-07-30 | 2010-11-03 | 中冶南方工程技术有限公司 | System for removing dust from converter gas by dry method and using method thereof |
| CN101892344A (en) * | 2010-07-30 | 2010-11-24 | 中冶南方工程技术有限公司 | Dry dedusting system for converter gas and using method thereof |
| CN101892345A (en) * | 2010-07-30 | 2010-11-24 | 中冶南方工程技术有限公司 | Converter coal gas dry-method dedusting system and using method thereof |
| CN101892343A (en) * | 2010-07-30 | 2010-11-24 | 中冶南方工程技术有限公司 | Converter gas dry-dedusting system and using method thereof |
| CN102312038A (en) * | 2011-06-20 | 2012-01-11 | 北京中冶设备研究设计总院有限公司 | Converter gas water-free explosionproof dedusting process and equipment |
| CN102563692A (en) * | 2011-12-19 | 2012-07-11 | 西安交通大学 | Early-warning adjustment system and early-warning adjustment method for preventing detonation of large-scale power station pulverized-fuel boiler furnace |
| CN102912076A (en) * | 2012-11-08 | 2013-02-06 | 攀钢集团研究院有限公司 | Method for preventing dry process dust removal pipeline of vanadium extraction converter from scaling |
| CN102912074A (en) * | 2012-11-08 | 2013-02-06 | 攀钢集团研究院有限公司 | Method for preventing dry process dust removal system from exhausting yellow smoke |
| CN102912073A (en) * | 2012-11-08 | 2013-02-06 | 攀钢集团研究院有限公司 | Method for preventing vanadium extraction converter dry dedusting system from vented explosion |
| CN102912075A (en) * | 2012-11-08 | 2013-02-06 | 攀钢集团研究院有限公司 | Method for improving coal gas recovery of semi-steel steel-making dry dedusting system |
| CN103062789A (en) * | 2012-12-25 | 2013-04-24 | 西安交通大学 | System and method for utilizing flue gas circulation to prevent deflagration of hearth bottom |
| CN103184305A (en) * | 2013-03-13 | 2013-07-03 | 河北钢铁股份有限公司承德分公司 | Explosion-proof control method adopting electric precipitation for vanadium extraction in converter |
| CN103276139A (en) * | 2013-06-09 | 2013-09-04 | 中国重型机械研究院股份公司 | Nitrogen dilution anti-explosion system in dry-method cooling and purifying recovery system for converter gas |
| CN103409588A (en) * | 2013-08-02 | 2013-11-27 | 江苏永钢集团有限公司 | Interconnection intercommunication device for two converting furnace gas chambers |
| CN105154613A (en) * | 2015-10-30 | 2015-12-16 | 太仓东能环保设备有限公司 | Converter dry-dedusting technology |
| CN105603148A (en) * | 2015-12-24 | 2016-05-25 | 北京热盾节能技术有限公司 | Pure-dry bag dedusting system and process capable of recycling flue gas waste heat of steelmaking converter |
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- 2009-05-31 CN CNA2009100857841A patent/CN101570808A/en active Pending
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|---|---|---|---|---|
| CN101892344A (en) * | 2010-07-30 | 2010-11-24 | 中冶南方工程技术有限公司 | Dry dedusting system for converter gas and using method thereof |
| CN101892345A (en) * | 2010-07-30 | 2010-11-24 | 中冶南方工程技术有限公司 | Converter coal gas dry-method dedusting system and using method thereof |
| CN101892343A (en) * | 2010-07-30 | 2010-11-24 | 中冶南方工程技术有限公司 | Converter gas dry-dedusting system and using method thereof |
| CN101875993B (en) * | 2010-07-30 | 2012-09-05 | 中冶南方工程技术有限公司 | System for removing dust from converter gas by dry method and using method thereof |
| CN101875993A (en) * | 2010-07-30 | 2010-11-03 | 中冶南方工程技术有限公司 | System for removing dust from converter gas by dry method and using method thereof |
| CN102312038B (en) * | 2011-06-20 | 2013-07-31 | 北京中冶设备研究设计总院有限公司 | Converter gas water-free explosionproof dedusting process and equipment |
| CN102312038A (en) * | 2011-06-20 | 2012-01-11 | 北京中冶设备研究设计总院有限公司 | Converter gas water-free explosionproof dedusting process and equipment |
| CN102563692A (en) * | 2011-12-19 | 2012-07-11 | 西安交通大学 | Early-warning adjustment system and early-warning adjustment method for preventing detonation of large-scale power station pulverized-fuel boiler furnace |
| CN102912076B (en) * | 2012-11-08 | 2014-05-21 | 攀钢集团研究院有限公司 | Method for preventing dry process dust removal pipeline of vanadium extraction converter from scaling |
| CN102912073B (en) * | 2012-11-08 | 2014-08-06 | 攀钢集团研究院有限公司 | Method for preventing vanadium extraction converter dry dedusting system from vented explosion |
| CN102912075A (en) * | 2012-11-08 | 2013-02-06 | 攀钢集团研究院有限公司 | Method for improving coal gas recovery of semi-steel steel-making dry dedusting system |
| CN102912074A (en) * | 2012-11-08 | 2013-02-06 | 攀钢集团研究院有限公司 | Method for preventing dry process dust removal system from exhausting yellow smoke |
| CN102912073A (en) * | 2012-11-08 | 2013-02-06 | 攀钢集团研究院有限公司 | Method for preventing vanadium extraction converter dry dedusting system from vented explosion |
| CN102912076A (en) * | 2012-11-08 | 2013-02-06 | 攀钢集团研究院有限公司 | Method for preventing dry process dust removal pipeline of vanadium extraction converter from scaling |
| CN102912074B (en) * | 2012-11-08 | 2014-05-21 | 攀钢集团研究院有限公司 | Method for preventing dry process dust removal system from exhausting yellow smoke |
| CN103062789A (en) * | 2012-12-25 | 2013-04-24 | 西安交通大学 | System and method for utilizing flue gas circulation to prevent deflagration of hearth bottom |
| CN103062789B (en) * | 2012-12-25 | 2015-07-01 | 西安交通大学 | System and method for utilizing flue gas circulation to prevent deflagration of hearth bottom |
| CN103184305A (en) * | 2013-03-13 | 2013-07-03 | 河北钢铁股份有限公司承德分公司 | Explosion-proof control method adopting electric precipitation for vanadium extraction in converter |
| CN103276139A (en) * | 2013-06-09 | 2013-09-04 | 中国重型机械研究院股份公司 | Nitrogen dilution anti-explosion system in dry-method cooling and purifying recovery system for converter gas |
| CN103276139B (en) * | 2013-06-09 | 2015-09-16 | 中国重型机械研究院股份公司 | Nitrogen dilution explosion protection system in a kind of converter gas dry method cooling, purifying recovery system |
| CN103409588A (en) * | 2013-08-02 | 2013-11-27 | 江苏永钢集团有限公司 | Interconnection intercommunication device for two converting furnace gas chambers |
| CN105154613A (en) * | 2015-10-30 | 2015-12-16 | 太仓东能环保设备有限公司 | Converter dry-dedusting technology |
| CN105603148A (en) * | 2015-12-24 | 2016-05-25 | 北京热盾节能技术有限公司 | Pure-dry bag dedusting system and process capable of recycling flue gas waste heat of steelmaking converter |
| CN106123619A (en) * | 2016-07-12 | 2016-11-16 | 中国石油化工股份有限公司 | The monitoring method of industrial furnace fuel accumulation |
| CN106123619B (en) * | 2016-07-12 | 2018-05-18 | 中国石油化工股份有限公司 | The monitoring method of industrial furnace fuel accumulation |
| CN109985717A (en) * | 2017-12-31 | 2019-07-09 | 北京蓝亚能源科技有限公司 | A kind of safety system of high-efficiency pulverized coal preparation process |
| CN108895474A (en) * | 2018-08-17 | 2018-11-27 | 中冶赛迪工程技术股份有限公司 | A kind of surplus coal gas automatic relief system |
| CN108895474B (en) * | 2018-08-17 | 2024-02-23 | 中冶赛迪工程技术股份有限公司 | Automatic excess gas diffusing system |
| CN109913244A (en) * | 2019-03-18 | 2019-06-21 | 唐山钢铁集团有限责任公司 | A kind of continuous coking device and technique |
| CN111549199A (en) * | 2020-04-14 | 2020-08-18 | 新兴铸管股份有限公司 | Converter gas recovery system and recovery process |
| CN111593163A (en) * | 2020-04-15 | 2020-08-28 | 浙江大维高新技术股份有限公司 | Converter gas flue gas conditioning system and flue gas conditioning method thereof |
| CN116970759A (en) * | 2023-08-06 | 2023-10-31 | 中国重型机械研究院股份公司 | Method for reducing carbon emission in converter steelmaking |
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