CN111253957A - Method for discharging ash at high material level by dry quenching primary dust removal - Google Patents
Method for discharging ash at high material level by dry quenching primary dust removal Download PDFInfo
- Publication number
- CN111253957A CN111253957A CN202010127491.1A CN202010127491A CN111253957A CN 111253957 A CN111253957 A CN 111253957A CN 202010127491 A CN202010127491 A CN 202010127491A CN 111253957 A CN111253957 A CN 111253957A
- Authority
- CN
- China
- Prior art keywords
- ash
- material level
- fork
- dust removal
- shaped groove
- 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
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
- C10B43/00—Preventing or removing incrustations
- C10B43/02—Removing incrustations
-
- 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
-
- 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
- C10B41/00—Safety devices, e.g. signalling or controlling devices for use in the discharge of coke
Abstract
The invention relates to a method for discharging ash at a high material level by one-time dust removal of dry quenching coke, which comprises the following steps: 1) arranging a nitrogen flushing port on the fork-shaped groove, continuously filling nitrogen, and reducing the internal temperature of the fork-shaped groove; 2) a plurality of water-cooling sleeves at the bottom of the primary dedusting bin discharge ash for 3-5 minutes at intervals of 1.5-2 hours; 3) and manually discharging ash on site every 15-17 days to reduce the material level to a position where the forked groove material level meter has no signal, and then putting the forked groove material level meter into an automatic ash discharge mode again. The advantages are that: the nitrogen is adopted for cooling the fork-shaped groove, so that the coking slag blocks of the inner plate of the fork-shaped groove are reduced, and meanwhile, the ash discharge accumulation nearby the probe of the charge level indicator is also reduced. The two-time ash discharge control is adopted, and the ash discharge is combined with the long-term interval ash discharge at ordinary times, so that the risk of untimely ash discharge or emptying during one-time dust removal is reduced, and the stable operation of the boiler is ensured.
Description
Technical Field
The invention relates to a method for discharging ash at a high material level by dry quenching primary dust removal.
Background
The traditional mode of the ash is arranged at the low material level of current once removing dust is the ash discharging mode which takes the turnout type groove material level meter alarm signal as the basis, the material level of the mode is easy to be low, air suction is easy to cause, the coking slag block of the inner plate of the turnout type groove is caused, meanwhile, the coke slag block which is hardened near the probe of the material level meter can be accumulated, the coke slag block which is thicker and thicker is accumulated for a long time is finally hardened on the probe of the material level meter, thereby causing the alarm of the material level meter, and the alarm signal can not be relieved through ash discharging, therefore, misoperation such as red ash discharging and even emptying of the water cooling sleeve is often caused, and the problems.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention aims to provide a method for discharging ash at a high material level by one-time dust removal of dry quenching coke, so that the risk of untimely or emptying of the ash by one-time dust removal is reduced, and the stable operation of a boiler is ensured.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a method for discharging ash at a high material level by one-time dust removal of dry quenching comprises the following steps:
1) arranging a nitrogen flushing port on the fork-shaped groove, continuously filling nitrogen, and reducing the internal temperature of the fork-shaped groove;
2) a plurality of water-cooling sleeves at the bottom of the primary dedusting bin discharge ash for 3-5 minutes at intervals of 1.5-2 hours;
3) and manually discharging ash on site every 15-17 days to reduce the material level to a position where the forked groove material level meter has no signal, and then putting the forked groove material level meter into an automatic ash discharge mode again.
The pipe diameter of the nitrogen charging port is 20-30mm, the nitrogen charging port is in a normally open state, and the nitrogen pressure is 0.2-0.4 MPa.
Compared with the prior art, the invention has the beneficial effects that:
the nitrogen is adopted for cooling the fork-shaped groove, so that the coking slag blocks of the inner plate of the fork-shaped groove are reduced, and meanwhile, the ash discharge accumulation nearby the probe of the charge level indicator is also reduced. The two-time ash discharge control is adopted, and the ash discharge is combined with the long-term interval ash discharge at ordinary times, so that the risk of untimely ash discharge or emptying during one-time dust removal is reduced, and the stable operation of the boiler is ensured.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a schematic diagram of a dry quenching dust removal process.
In the figure: 1-a primary dust removal bin 2-a fork-shaped groove 3-a material level meter 4-a water-cooling sleeve 5-a secondary dust removal bin 6-a scraper 7-an ash discharge pipeline 8-a bucket elevator.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings, but it should be noted that the present invention is not limited to the following embodiments.
Referring to fig. 1 and 2, the method for discharging the ash at the high material level by one-time dust removal of the dry quenching coke comprises the following steps:
1) arranging a nitrogen flushing port on the fork-shaped groove 2, continuously filling nitrogen, reducing the internal temperature of the fork-shaped groove 2 and shortening the coke powder cooling time in the fork-shaped groove 2; the pipe diameter of the nitrogen charging port is 20-30mm, the nitrogen charging port is in a normally open state, and the nitrogen pressure is 0.2-0.4 MPa;
2) four water-cooling sleeves 4 at the bottom of the primary dedusting bin 1 discharge ash for 3-5 minutes at intervals of 1.5-2 hours; the water-cooling sleeve 4 can discharge ash according to a certain sequence;
3) the actual ash storage amount is between 2 and 2.5 meters above the fork-shaped groove 2 in 15 to 17 days and about 5 to 6 tons of coke powder, so the coke powder cannot be brought into a boiler by circulating airflow, the on-site manual ash discharge reduces the material level to the position where the fork-shaped groove 2 material level meter 3 has no signal every 15 to 17 days, the material level meter 3 is pulled out on site for confirmation, and then the automatic ash discharge mode is put into again;
4) the secondary dust removal and ash discharge is directly carried into the bucket 8 through the ash discharge pipeline 7 by the secondary dust removal bin 5 and does not pass through the scraper 6, so that the secondary dust removal and ash discharge can be simultaneously carried out with the water-cooling sleeve 4 and are not restricted.
Example (b):
the method for discharging ash at a high material level by one-time dust removal of dry quenching comprises the following steps:
1) the fork-shaped groove 2 is provided with a nitrogen flushing port with the pipe diameter of 25mm, the nitrogen pressure is 0.2-0.4MPa, and the nitrogen is in a normally open state.
2) The ash discharging mode is that ash is discharged at fixed time, 4 ash is discharged for one half hour and once per water-cooling sleeve, and the ash is discharged for 3 minutes each time.
3) Every 15 days, the site was manually emptied of ash until the level gauge 3 signal changed.
4) The primary dust removal and the secondary dust removal are separated and respectively sent to respective dust removal systems.
The nitrogen is adopted for cooling the fork-shaped groove 2 to reduce the coking slag blocks of the inner plates of the fork-shaped groove 2, and simultaneously, the ash discharge accumulation near the probe of the level indicator 3 can be reduced. The two-time ash discharge control is adopted, and the ash discharge is combined with the long-term interval ash discharge at ordinary times, so that the risk of untimely ash discharge or emptying during one-time dust removal is reduced, and the stable operation of the boiler is ensured.
Claims (2)
1. A method for discharging ash at a high material level by one-time dust removal of dry quenching coke is characterized by comprising the following steps:
1) arranging a nitrogen flushing port on the fork-shaped groove, continuously filling nitrogen, and reducing the internal temperature of the fork-shaped groove;
2) a plurality of water-cooling sleeves at the bottom of the primary dedusting bin discharge ash for 3-5 minutes at intervals of 1.5-2 hours;
3) and manually discharging ash on site every 15-17 days to reduce the material level to a position where the forked groove material level meter has no signal, and then putting the forked groove material level meter into an automatic ash discharge mode again.
2. The method for discharging ash at a high material level by one-time dust removal of coke dry quenching as claimed in claim 1, wherein the pipe diameter of the nitrogen flushing port is 20-30mm, the nitrogen flushing port is in a normally open state, and the nitrogen pressure is 0.2-0.4 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010127491.1A CN111253957A (en) | 2020-02-28 | 2020-02-28 | Method for discharging ash at high material level by dry quenching primary dust removal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010127491.1A CN111253957A (en) | 2020-02-28 | 2020-02-28 | Method for discharging ash at high material level by dry quenching primary dust removal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111253957A true CN111253957A (en) | 2020-06-09 |
Family
ID=70949508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010127491.1A Pending CN111253957A (en) | 2020-02-28 | 2020-02-28 | Method for discharging ash at high material level by dry quenching primary dust removal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111253957A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999233Y (en) * | 2007-02-06 | 2008-01-02 | 宝山钢铁股份有限公司 | Oscillation feeder rear-end ash-discharging device of dried coke quenchig discharging system |
| CN202297467U (en) * | 2011-10-20 | 2012-07-04 | 宝山钢铁股份有限公司 | Self-dust removal type dry quenching preheater |
| CN202390362U (en) * | 2011-12-23 | 2012-08-22 | 贵州桑立洁净能源科技开发有限公司 | Dry quenching tunnel briquette-carbonization furnace |
| CN103923666A (en) * | 2014-04-15 | 2014-07-16 | 北京华泰焦化工程技术有限公司 | Coke powder discharge device of coke dry quenching system and method for controlling coke powder discharge process |
| CN204644262U (en) * | 2015-03-25 | 2015-09-16 | 北京中日联节能环保工程技术有限公司 | The two fork ash bucket coke powder level observing device of cork dry quenching disposable dust remover ash discharge |
| CN209193883U (en) * | 2018-08-23 | 2019-08-02 | 广东韶钢松山股份有限公司 | A kind of New-style Coke Dry Quenching water cold sleeve sealing device |
| CN110538517A (en) * | 2019-09-04 | 2019-12-06 | 鞍钢股份有限公司 | Dry quenching primary dust removal device and dust removal method |
| CN110591736A (en) * | 2019-09-28 | 2019-12-20 | 四川达兴能源股份有限公司 | Online replacement method for dry quenching primary dust removal water-cooling sleeve by adopting auxiliary device |
-
2020
- 2020-02-28 CN CN202010127491.1A patent/CN111253957A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200999233Y (en) * | 2007-02-06 | 2008-01-02 | 宝山钢铁股份有限公司 | Oscillation feeder rear-end ash-discharging device of dried coke quenchig discharging system |
| CN202297467U (en) * | 2011-10-20 | 2012-07-04 | 宝山钢铁股份有限公司 | Self-dust removal type dry quenching preheater |
| CN202390362U (en) * | 2011-12-23 | 2012-08-22 | 贵州桑立洁净能源科技开发有限公司 | Dry quenching tunnel briquette-carbonization furnace |
| CN103923666A (en) * | 2014-04-15 | 2014-07-16 | 北京华泰焦化工程技术有限公司 | Coke powder discharge device of coke dry quenching system and method for controlling coke powder discharge process |
| CN204644262U (en) * | 2015-03-25 | 2015-09-16 | 北京中日联节能环保工程技术有限公司 | The two fork ash bucket coke powder level observing device of cork dry quenching disposable dust remover ash discharge |
| CN209193883U (en) * | 2018-08-23 | 2019-08-02 | 广东韶钢松山股份有限公司 | A kind of New-style Coke Dry Quenching water cold sleeve sealing device |
| CN110538517A (en) * | 2019-09-04 | 2019-12-06 | 鞍钢股份有限公司 | Dry quenching primary dust removal device and dust removal method |
| CN110591736A (en) * | 2019-09-28 | 2019-12-20 | 四川达兴能源股份有限公司 | Online replacement method for dry quenching primary dust removal water-cooling sleeve by adopting auxiliary device |
Non-Patent Citations (2)
| Title |
|---|
| 廖勇等: "干熄焦1DC水冷套管窜漏后的保产操作", 《2019全国焦化行业创新节能减排技术研讨会暨七省金属学会第二十届焦化学术年会论文集》 * |
| 潘立慧等编著: "《干熄焦技术》", 28 February 2005 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111253957A (en) | Method for discharging ash at high material level by dry quenching primary dust removal | |
| CN107805678B (en) | Drainage system for discharging accumulated water in blast furnace | |
| CN103333983B (en) | Converter primary flue gas dry dedusting and cinder pneumatic transmission system | |
| CN103923666B (en) | A kind of coke discharging powder device of dry quenching system and the method for control coke discharging powder | |
| CN109021987A (en) | A kind of oven top of coke oven servicer detected automatically | |
| CN201648295U (en) | Water seal trough of dry quenching coke furnace | |
| CN112501374A (en) | Automatic blockage clearing and pressure taking device and method for pressure of blast furnace charging bucket | |
| CN108913180A (en) | A kind of device and method of coke oven coal-blending coking commerical test prediction coke quality | |
| CN111470285A (en) | Sealed high-temperature ash discharging device for gas system | |
| CN203498402U (en) | Cooling wall water leakage detection device | |
| CN108342205A (en) | A kind of interior detection method without coke of coke tank | |
| CN103333984A (en) | Converter primary exhaust gas dry dedusting coarse ash pneumatic conveying system | |
| CN203373372U (en) | Converter gas dry de-dusting cinder pneumatic conveying system | |
| CN103333985A (en) | Converter gas dry dedusting coarse ash pneumatic conveying system | |
| CN204923021U (en) | Novel dewatering bin bleed system | |
| CN211997909U (en) | Ash conveying pipeline system for economizer | |
| CN214327661U (en) | Ceramic tube type high-temperature dust removal device for raw gas of medium-low temperature pyrolysis rotary retort | |
| CN203373374U (en) | Pneumatic conveying system for coarse ash in dry dedusting of primary flue gas of converters | |
| CN209065846U (en) | A kind of continuous liquid slag discharging device | |
| CN110591736A (en) | Online replacement method for dry quenching primary dust removal water-cooling sleeve by adopting auxiliary device | |
| CN108485721B (en) | Automatic ash conveying device of gas furnace dust remover | |
| CN212173622U (en) | Sealed high-temperature ash discharging device for gas system | |
| CN209540938U (en) | It is a kind of for preventing the device of lower portion thereof pressure gauge pilot blockage | |
| CN219376428U (en) | High-temperature gas dust collection system | |
| CN103318648A (en) | Converter gas dry-method dedusting cinder pneumatic conveying method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200609 |
|
| RJ01 | Rejection of invention patent application after publication |