CN106011364A - Wet-method primary dust-proof micro pressure difference anti-blocking method of steel-making converter - Google Patents
Wet-method primary dust-proof micro pressure difference anti-blocking method of steel-making converter Download PDFInfo
- Publication number
- CN106011364A CN106011364A CN201610618010.0A CN201610618010A CN106011364A CN 106011364 A CN106011364 A CN 106011364A CN 201610618010 A CN201610618010 A CN 201610618010A CN 106011364 A CN106011364 A CN 106011364A
- Authority
- CN
- China
- Prior art keywords
- pressure
- micro
- converter
- difference
- pressure difference
- 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.)
- Pending
Links
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
- C21C5/38—Removal of waste gases or dust
Landscapes
- 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)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The invention discloses a wet-method primary dust-proof micro pressure difference anti-blocking method of a steel-making converter. The wet-method primary dust-proof micro pressure difference anti-blocking method comprises the following steps: forming a hole on which accurate detection can be implemented and turbulent air flow points can be avoided, in a position on a converter flue, as a micro pressure difference system detection point; introducing nitrogen as a blowing medium through pipeline conveying; mounting a micro pressure difference control tank in a relatively short stroke position which is beneficial to accurate detection of a micro pressure difference detection meter; mounting control equipment joining logic control, and blowing by taking oxygen supply termination and slag splashing start signals as blowing triggering points, wherein the blowing duration is 30-60 seconds. By adopting the wet-method primary dust-proof micro pressure difference anti-blocking method, the long-term stable operation of a converter dust collection system can be ensured, the energy consumption can be reduced, and the environment can be protected.
Description
Technical field
The invention belongs to field of metallurgy, relate to a kind of steelmaking converter wet method one-time dedusting micro-pressure-difference anti-blocking method.
Background technology
In prior art, after minute-pressure almost accesses gas, purge for a long time in certain a time, cause nitrogen pressure not enough owing to accessing the insufficient pressure of gas own or the long pressure loss of pipeline；Micro-pressure-difference pressure measurement points is incorrect；Daily stopping time or overhaul the factors such as not dredging and cause micro-pressure-difference system fluctuation of service or do not run, causing whole once dust collection of converter system circumferential weld equipment cisco unity malfunction, blowdown stack emits tobacco and rains black, and environmental protection is the most up to standard.
Summary of the invention
For the drawback overcoming traditional method to bring, make up the defect of traditional method.It is an object of the invention to provide a kind of steelmaking converter wet method one-time dedusting micro-pressure-difference anti-blocking method, the method can extend and ensure the smooth long term running of converter dedusting line, reduces energy consumption, protects environment.
The purpose of the present invention is achieved through the following technical solutions:
A kind of steelmaking converter wet method one-time dedusting micro-pressure-difference anti-blocking method; it is characterized in that: the method utilizes nitrogen to work as medium; take the defeated mode of pipeline to send and be linked at converter flue micro-pressure-difference pressure point; in suitable converter producing passage, micro-pressure-difference pressure point is purged; and limit the purging frequency and purge time; extend and ensure the smooth long term running of converter dedusting line, reduce energy consumption, protect environment；Specific requirement is as follows:
1) through overtesting and practice, converter flue is chosen the position perforate that can accurately detect and can evade turbulent air flow point, as micro-pressure-difference system test point；
2) carried by pipeline, access nitrogen as blowing medium；
3) micro-pressure-difference control chamber is arranged on the relatively short stroke position that beneficially micro-pressure-difference detection table accurately detects, such as: in other 5 meters of flue；
4) control equipment is installed, participates in logic control, terminate and spatter the trigger point that slag commencing signal is purging with oxygen supply and purge, purge duration 30-60s.
In the present invention, converter flue is chosen 2-3 the position perforate that can accurately detect and can evade turbulent air flow point.Nitrogen pressure :≤1.6Mpa, nitrogen flow rate: 5m/s, can be adjusted according to on-the-spot practical condition, to prevent micro-pressure-difference from blocking, stop energy waste.
The present invention is combined with practice by experience, attaches most importance to logical order control, be basic with nitrogen conveying, at least 116 days (the most long-time) is non-maintaining to realize micro-pressure-difference system, ensure once dust collection of converter system smooth long term running, reach discharge and meet existing environment protection emission index.
Compared with traditional method: the present invention, without regular maintenance, reduces maintenance rate；Avoid because micro-pressure-difference system runs the abnormal passive maintenance causing circumferential weld equipment；Farthest optimize the utilization of energy medium, obtain bigger experience benefit with less energy resource consumption；Ensure long-term normal production, it is to avoid because micro-pressure-difference system is run the abnormal chimney caused and emitted tobacco and rain the phenomenon such as black, protect environment.
Detailed description of the invention
A kind of steelmaking converter wet method one-time dedusting micro-pressure-difference anti-blocking method; nitrogen is utilized to work as medium; take the defeated mode of pipeline to send and be linked at converter flue micro-pressure-difference pressure point; in suitable converter producing passage, micro-pressure-difference pressure point is purged; and limit the purging frequency and purge time; extend and ensure the smooth long term running of converter dedusting line, reduce energy consumption, protect environment；Specific requirement is as follows:
1) through overtesting and practice, converter flue is chosen 2-3 the position perforate that can accurately detect and can evade turbulent air flow point, as micro-pressure-difference system test point；
2) carried by pipeline, access nitrogen as blowing medium；Nitrogen pressure :≤1.6Mpa, nitrogen flow rate: 5m/s, can be adjusted according to on-the-spot practical condition, to prevent micro-pressure-difference from blocking, stop energy waste.
3) micro-pressure-difference control chamber is arranged on the relatively short stroke position that beneficially micro-pressure-difference detection table accurately detects；Such as: in other 5 meters of flue；
4) control equipment is installed, participates in logic control, terminate and spatter the trigger point that slag commencing signal is purging with oxygen supply and purge, purge duration 30-60s.Can be adjusted according to on-the-spot practical condition, to prevent micro-pressure-difference from blocking, stop energy waste.
Embodiment
Steel mill 1# converter OG one-time dedusting micro-pressure-difference system is run abnormal, circumferential weld equipment can not get effective utilization automatically, certain aperture can only be fixed on, have when causing Factory Building and emit tobacco, smoke stack emission ＞ GB (50mg), do not reach new " environmental law " relevant regulations, cause environmental pollution.When to primary dedusting system transformation of this factory, micro-pressure-difference system is made that corresponding optimization, especially prevents blocking aspect, done substantial amounts of design work, after putting into operation about 30 days, find that micro-pressure-difference detection occurs in that the phenomenon of blocking.Through dredging, occur in that again clogging after two weeks, still can not solve to block this difficult problem.
Use the present invention that this factory's micro-pressure-difference system carries out upgrading to optimize.The detection of micro-pressure-difference system is accurately; without daily or periodic cleaning; can ensure that once dust collection of converter system normal table runs; micro-pressure-difference detecting system Detection accuracy is guaranteed; dust pelletizing system even running is just guaranteed; dust pelletizing system emission compliance just can meet relevant regulations in China's new " environmental law ", has stopped energy waste, protects environment.Optimize from March 2nd, 2016, on June 18th, 2016, it is achieved nothing blocking in 116 days, non-maintaining.
Claims (3)
1. a steelmaking converter wet method one-time dedusting micro-pressure-difference anti-blocking method; it is characterized in that: the method uses nitrogen as medium; take the defeated mode of pipeline to send and be linked at converter flue micro-pressure-difference pressure point; in suitable converter producing passage, micro-pressure-difference pressure point is purged; and limit the purging frequency and purge time; extend and ensure the smooth long term running of converter dedusting line, reduce energy consumption, protect environment；Specific requirement is as follows:
1) through overtesting and practice, converter flue is chosen the position perforate that can accurately detect and can evade turbulent air flow point, as micro-pressure-difference system test point；
2) carried by pipeline, access nitrogen as blowing medium；
3) micro-pressure-difference control chamber is arranged on the relatively short stroke position that beneficially micro-pressure-difference detection table accurately detects；
4) control equipment is installed, participates in logic control, terminate and spatter the trigger point that slag commencing signal is purging with oxygen supply and purge, purge duration 30-60s.
Steelmaking converter wet method one-time dedusting micro-pressure-difference anti-blocking method the most according to claim 1, it is characterised in that: on converter flue, choose 2-3 the position perforate that can accurately detect and can evade turbulent air flow point.
Steelmaking converter wet method one-time dedusting micro-pressure-difference anti-blocking method the most according to claim 1, it is characterised in that: step 2) in, nitrogen pressure :≤1.6Mpa, nitrogen flow rate: 5m/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610618010.0A CN106011364A (en) | 2016-08-01 | 2016-08-01 | Wet-method primary dust-proof micro pressure difference anti-blocking method of steel-making converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610618010.0A CN106011364A (en) | 2016-08-01 | 2016-08-01 | Wet-method primary dust-proof micro pressure difference anti-blocking method of steel-making converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106011364A true CN106011364A (en) | 2016-10-12 |
Family
ID=57114445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610618010.0A Pending CN106011364A (en) | 2016-08-01 | 2016-08-01 | Wet-method primary dust-proof micro pressure difference anti-blocking method of steel-making converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106011364A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399935A (en) * | 2011-11-11 | 2012-04-04 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Device and method for improving gas effect of OG (Oxygen Gas Recovery System) method recovery converter |
| CN203007303U (en) * | 2012-10-31 | 2013-06-19 | 中冶南方工程技术有限公司 | Primary smoke micro-differential pressure measuring device for converter |
| CN203247283U (en) * | 2013-03-27 | 2013-10-23 | 上海梅山钢铁股份有限公司 | Device for measuring micro differential pressure at converter opening |
| CN203534762U (en) * | 2013-10-29 | 2014-04-09 | 中冶东方工程技术有限公司 | Furnace mouth pressure measuring unit with nitrogen purging function |
| CN203551180U (en) * | 2013-10-19 | 2014-04-16 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Converter opening micro-differential pressure measuring pressure tapping device |
| CN105779685A (en) * | 2016-03-23 | 2016-07-20 | 中冶南方工程技术有限公司 | Device and method for safely measuring and purging micro-differential pressure of converter mouth |
-
2016
- 2016-08-01 CN CN201610618010.0A patent/CN106011364A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102399935A (en) * | 2011-11-11 | 2012-04-04 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Device and method for improving gas effect of OG (Oxygen Gas Recovery System) method recovery converter |
| CN203007303U (en) * | 2012-10-31 | 2013-06-19 | 中冶南方工程技术有限公司 | Primary smoke micro-differential pressure measuring device for converter |
| CN203247283U (en) * | 2013-03-27 | 2013-10-23 | 上海梅山钢铁股份有限公司 | Device for measuring micro differential pressure at converter opening |
| CN203551180U (en) * | 2013-10-19 | 2014-04-16 | 甘肃酒钢集团宏兴钢铁股份有限公司 | Converter opening micro-differential pressure measuring pressure tapping device |
| CN203534762U (en) * | 2013-10-29 | 2014-04-09 | 中冶东方工程技术有限公司 | Furnace mouth pressure measuring unit with nitrogen purging function |
| CN105779685A (en) * | 2016-03-23 | 2016-07-20 | 中冶南方工程技术有限公司 | Device and method for safely measuring and purging micro-differential pressure of converter mouth |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203247283U (en) | Device for measuring micro differential pressure at converter opening | |
| CN203404623U (en) | Urban gas pipe network leakage monitoring system based on intelligent balls | |
| CN103309327A (en) | Monitoring device for detecting leak hydrogen in internal cooling water and evaluating influence on quality of internal cooling water | |
| CN106011364A (en) | Wet-method primary dust-proof micro pressure difference anti-blocking method of steel-making converter | |
| CN204171079U (en) | Continuous-rolling system dust arrester | |
| CN204228228U (en) | Cork dry quenching disposable dust remover material-level detecting device | |
| CN202676242U (en) | High temperature radar charge level indicator device | |
| CN201779656U (en) | Combustor with liquid leakage detecting device | |
| CN109239193A (en) | A method of for detecting converter slag | |
| CN204198774U (en) | Blast furnace tuyere water leakage alarm device | |
| CN203551180U (en) | Converter opening micro-differential pressure measuring pressure tapping device | |
| CN203007286U (en) | Cooling device for shooting water on roof of blast furnace | |
| CN201772977U (en) | Detection device for monitoring leakage detecting tube of urea high-pressure equipment | |
| CN205205073U (en) | Dry coke quenching stove water sealed tank | |
| CN210001882U (en) | COREX furnace tuyere small sleeve damage inspection device | |
| CN201231252Y (en) | Annular air-blade of hot-metal detection element | |
| CN208136277U (en) | System for handling converter splash | |
| WO2020118589A1 (en) | Spray gun control method for sncr denitration in furnace of waste incineration power plant | |
| CN205037976U (en) | Continuous temperature probe air cooling apparatus | |
| CN103104531B (en) | A kind of fault detection method of blower fan undercapacity and device | |
| CN107338340A (en) | A kind of device and method for being used to prevent RECOVERY OF CONVERTER GAS blower fan surge | |
| CN103264712A (en) | Rail corrugation detection method | |
| CN206038376U (en) | Smoke and dust detector sampling sealing device | |
| CN202581364U (en) | Smoke leakage detection chimney | |
| CN203007303U (en) | Primary smoke micro-differential pressure measuring device for converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161012 |
|
| RJ01 | Rejection of invention patent application after publication |