CN109405631A - A kind of offline cleaning process of primary cooler lower section and system - Google Patents
A kind of offline cleaning process of primary cooler lower section and system Download PDFInfo
- Publication number
- CN109405631A CN109405631A CN201811469242.XA CN201811469242A CN109405631A CN 109405631 A CN109405631 A CN 109405631A CN 201811469242 A CN201811469242 A CN 201811469242A CN 109405631 A CN109405631 A CN 109405631A
- Authority
- CN
- China
- Prior art keywords
- lower section
- primary cooler
- cleaning
- pipeline
- ammonium hydroxide
- 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
- 238000004140 cleaning Methods 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 16
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 60
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 48
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 48
- 239000000908 ammonium hydroxide Substances 0.000 claims abstract description 38
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000000571 coke Substances 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims abstract description 10
- 239000012530 fluid Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 238000011084 recovery Methods 0.000 claims abstract description 4
- 239000007921 spray Substances 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 abstract description 23
- 239000012535 impurity Substances 0.000 abstract description 8
- 239000002817 coal dust Substances 0.000 abstract description 7
- 238000009825 accumulation Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 8
- 238000001816 cooling Methods 0.000 description 5
- 238000011010 flushing procedure Methods 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000002000 scavenging effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000002790 naphthalenes Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000009290 primary effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Industrial Gases (AREA)
Abstract
The present invention relates to a kind of offline cleaning process of primary cooler lower section and systems, and the system comprises U-shaped water seal, rinse bath, cleaning pump and fluid level control devices；Hot ammonia inlet is set on condensate circulation pipeline, and the outlet of cleaning ammonium hydroxide is set on the condensate circulation pipeline between primary cooler lower section and water sealed tank, the tar ammonia pipeline in gas-liquid separator downstream in raw coke oven gas recovery system is connected by cleaning ammonia water pipeline；The hot ammonium hydroxide flow direction after cleaning is cleaned in ammonia water pipeline and is successively arranged U-shaped water seal, rinse bath, cleaning pump and regulating valve, the regulating valve and the liquidometer interlocking composition fluid level control device being set on rinse bath.The present invention is suitable for more primary coolers in parallel, offline primary cooler lower section is constantly rinsed using hot ammonium hydroxide, hot ammonium hydroxide not recycling after cleaning, but the tar ammonia pipeline in gas-liquid separator downstream is drained into outside, it can effectively clear up the impurity such as coal dust, the naphthalene of heat-transfer pipe and the accumulation of primary cooler inner wall.
Description
Technical field
The present invention relates to coke oven gas primary-cooling technical field more particularly to a kind of offline cleaning process of primary cooler lower section and it is
System.
Background technique
During reclaiming clean coke-oven gas, the raw coke oven gas escaped from coke furnace carbonization chamber through tedge first through bridge tube into
Enter gas collecting tube, after gas-liquid separator, raw coke oven gas, which enters primary cooler, to be continued to cool down for raw coke oven gas and tar ammonia mixture.Primary cooler
It is middle that sub-sectional cooling is carried out to raw coke oven gas using industrial circulating water and water at low temperature, generally use upper and lower two-stage structure.It is just cold to strengthen
The heat exchange efficiency of device, the de- naphthalene efficiency for improving primary cooler, upper section are sprayed with tar ammonia emulsion, as shown in Figure 1, just cold
The condensate circulation of device lower section 1 pumps the condensate circulation that 10 send and continuously sprays, and condensate liquid is passed through through the bottom of primary cooler lower section 1
Enter lower section after water sealed tank 8 and condense liquid bath 9, then send through condensate circulation pump 10 to the circulation sprinkling of the top of primary cooler lower section 1；It is more
Remaining condensate liquid is sent by condensate circulation pump 10 to the tar ammonia pipeline 11 in gas-liquid separator downstream.
A large amount of coal dusts, naphthalene and tar vapor are carried in raw coke oven gas after gas-liquid separator, the effect of primary cooler is by waste coal
Gas is cooled to about 22 DEG C from about 82 DEG C, and removes most naphthalene in raw coke oven gas, reduces follow-up equipment resistance, for further recycling
Chemical products provides advantage.The tar vapor of the overwhelming majority is condensed out in gas collecting tube and primary cooler upper section, and primary cooler
Lower section is different from primary cooler upper section, and not having difference in height can not realize that gravity flow updates, and primary cooler lower section temperature is lower, burnt
Oil content is again seldom, causes most of naphthalene in coal gas to be precipitated, easily accumulates, cause on heat-transfer pipe and primary cooler lower section inner wall
Equipment resistance improves, can only be by current technology to reduce the cooling effect of primary cooler and increase the load of system
Compel frequently purging.And the impurity such as naphthalene, coal dust that primary cooler lower section purges out enter in flushing liquor and condensate liquid and are recycled, and make
It obtains the cleaning of primary cooler lower section to be not thorough, short time internal resistance repeats to increase.Although increasing flushing liquor renewal amount has certain effect,
Most of impurity is still brought into the primary cooler lower section of operation, and vicious circle can not effectively solve primary cooler lower section blockage problem.
The Chinese patent of Publication No. CN103589440A discloses that " a kind of hot ammonium hydroxide washes the side of coke oven gas primary-cooling device
Method " proposes and cleans primary cooler lower section using hot ammonia circulation, but there are following limitations for its technical solution: 1) cleaning ammonium hydroxide
Primary cooler lower section condensation liquid bath is had to pass through, it, so just can only be right because lower section condensation liquid bath is the necessaries of primary cooling process
Primary cooler lower section carries out on-line cleaning, or primary cooler is all stopped production and is cleaned, inflexible for use, influences economic benefit；
2) when on-line cleaning, coke-stove gas continues into primary cooler lower section, and a large amount of naphthalenes, the coal dust carried is still accumulating, hot ammonium hydroxide
Cleaning effect is limited.
Summary of the invention
The present invention provides a kind of offline cleaning process of primary cooler lower section and system, the primary cooler in parallel suitable for more,
Offline primary cooler lower section is constantly rinsed using hot ammonium hydroxide, the hot ammonium hydroxide not recycling after cleaning, but gas-liquid is drained into outside
The tar ammonia pipeline of separator downstream can effectively clear up the impurity such as coal dust, the naphthalene of heat-transfer pipe and the accumulation of primary cooler inner wall.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of offline cleaning process of primary cooler lower section, the primary cooler are more parallel connections, when the lower section of certain primary cooler needs
When cleaning, be first turned off corresponding primary cooler, be at off-line state, then using lower section condensate circulation sprinkling system to
Corresponding primary cooler lower section sprinkling cleaning cleans primary cooler lower section with hot ammonium hydroxide；Hot ammonium hydroxide after cleaning passes through lower liquid pipe road
Rinse bath is flowed into, then the tar ammonia pipeline in gas-liquid separator downstream will be drained into outside the hot ammonium hydroxide after cleaning by cleaning pump；To
It is successively passed through hot ammonium hydroxide in corresponding primary cooler lower section, the cleaning until completing primary cooler lower section.
A kind of primary cooler lower section membrane off-line cleaning system for realizing the technique, the primary cooler are more parallel connections, often
Spray equipment is set at the top of platform primary cooler lower section, spray equipment connects the cold of primary cooler lower section bottom by condensate circulation pipeline
Condensate outlet sets gradually water sealed tank, lower section condensation liquid bath and condensate liquid along condensate flow direction on condensate circulation pipeline
Circulating pump；The membrane off-line cleaning system includes U-shaped water seal, rinse bath, cleaning pump and fluid level control device；Spray equipment upstream
Hot ammonia inlet is set on condensate circulation pipeline, hot ammonia inlet is conveyed by hot ammonia inlet pipeline and the hot ammonium hydroxide of coke-oven plant
Pipeline is connected, and sets controlled valve on hot ammonia inlet pipeline；On condensate circulation pipeline between primary cooler lower section and water sealed tank
If cleaning ammonium hydroxide outlet, the tar ammonia pipe in gas-liquid separator downstream in raw coke oven gas recovery system is connected by cleaning ammonia water pipeline
Road；The hot ammonium hydroxide flow direction after cleaning is cleaned in ammonia water pipeline and is successively arranged U-shaped water seal, rinse bath, cleaning pump and adjusting
Valve, the regulating valve and the liquidometer interlocking composition fluid level control device being set on rinse bath.
Compared with prior art, the beneficial effects of the present invention are:
1) the hot ammonium hydroxide drawn from coke-oven plant contains tar, and temperature is high, and pressure is big, can effectively clear up the accumulation of primary cooler lower section
The impurity such as coal dust, naphthalene；
2) coal dust and naphthalene washed out enters eventually into tar product, and object without secondary pollution generates, and protects environment；
3) hot ammonium hydroxide directly outer tar ammonia pipeline for draining into gas-liquid separator downstream after the flushing of primary cooler lower section, no
It is recycled, guarantees cleaning effect；
4) scavenging period can be manually set as needed, primary cooler lower section is cleaned thoroughly, primary cooler service efficiency is improved,
Extend the primary cooler service life；
5) it cleans and U-shaped water seal is set in ammonia water pipeline, thoroughly cut off, do not interfere with each other with the primary cooler of online production；
6) the liquidometer interlocking being arranged on regulating valve and rinse bath is adjusted, and is made to keep certain liquid level in rinse bath, be cleaned
Cheng Wuxu manual adjustment realizes automation control, and operating process is easy, quick, saves human cost；
7) hot ammonium hydroxide is cleaned to corresponding primary cooler lower section sprinkling using original lower section condensate circulation sprinkling system,
Structure is simple, easy to operate, and small investment, low energy consumption.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of primary cooler lower section membrane off-line cleaning system of the present invention.
In figure: 1. primary cooler lower section, 2. 4. rinse bath of hot ammonia inlet 3.U shape water seal, 5. liquidometer, 6. cleaning pump
7. 8. water sealed tank of regulating valve, 9. lower section condenses the tar ammonia that 10. condensate circulation of liquid bath pumps 11. gas-liquid separator downstreams
Pipeline 12. cleans ammonium hydroxide outlet
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:
As shown in Figure 1, a kind of offline cleaning process of primary cooler lower section of the present invention, the primary cooler is more parallel connections,
When the lower section of certain primary cooler needs to clean, it is first turned off corresponding primary cooler, is at off-line state, then utilizes lower section
Condensate circulation sprinkling system cleans primary cooler lower section 1 with hot ammonium hydroxide to the corresponding sprinkling of primary cooler lower section 1 cleaning；Cleaning
Hot ammonium hydroxide afterwards flows into rinse bath 4 by lower liquid pipe road, then gas-liquid separation will be drained into outside the hot ammonium hydroxide after cleaning by cleaning pump 6
The tar ammonia pipeline 11 in device downstream；It is successively passed through hot ammonium hydroxide into corresponding primary cooler lower section 1, until completing under primary cooler
The cleaning of section 1.
A kind of primary cooler lower section membrane off-line cleaning system for realizing the technique, the primary cooler are more parallel connections, often
The top of platform primary cooler lower section 1 sets spray equipment, and spray equipment connects 1 bottom of primary cooler lower section by condensate circulation pipeline
Condensate outlet sets gradually water sealed tank 8, lower section condenses liquid bath 9 and cold along condensate flow direction on condensate circulation pipeline
Lime set circulating pump 10；The membrane off-line cleaning system includes U-shaped water seal 3, rinse bath 4, cleaning pump 6 and fluid level control device；Spray
Hot ammonia inlet 2 is set on the condensate circulation pipeline of device upstream, hot ammonia inlet 2 passes through hot ammonia inlet pipeline and coke-oven plant
Hot ammonium hydroxide conveyance conduit be connected, set controlled valve on hot ammonia inlet pipeline；It is cold between primary cooler lower section 1 and water sealed tank 8
Cleaning ammonium hydroxide outlet 12 is set on lime set circulating line, and gas-liquid separator in raw coke oven gas recovery system is connected by cleaning ammonia water pipeline
The tar ammonia pipeline 11 in downstream；The hot ammonium hydroxide flow direction after cleaning is cleaned in ammonia water pipeline and is successively arranged U-shaped water seal 3, clear
Washing trough 4, cleaning pump 6 and regulating valve 7, the regulating valve 7 and the interlocking composition fluid level control device of liquidometer 5 being set on rinse bath 4.
The working principle of primary cooler lower section membrane off-line cleaning system of the present invention is: tar can dissolve the naphthalene in coal gas,
The hot ammonium hydroxide tar content that coke-oven plant is drawn is typically about 0.5g/L, and temperature is high, pressure is big, and hot ammonium hydroxide in the present invention
It is not recycled, impurity will not accumulate, therefore the coal dust and the impurity such as naphthalene blocked to primary cooler lower section 1 has and remove effect well
Fruit.Primary cooler lower section 1 uses offline cleaning way, and can set scavenging period according to user demand.
The cleaning ammonia water pipeline setting U-shaped water seal 3 of primary cooler lower section 1 to rinse bath 4 is to avoid cleaning using water-seal principle
When air enter potential danger caused by the primary cooler of online production.
In the present invention, the hot ammonium hydroxide for being cleaned to primary cooler lower section 1 do not enter back into 1 top of offline primary cooler lower section into
Row circulation sprinkling, because hot ammonium hydroxide, which rinses primary effect specific heat ammonia circulation flushing effect, well much to rinse the coal to get off
The impurity such as powder and naphthalene will not be again introduced into primary cooler lower section 1, can ensure that the effect of cleaning in this way.In addition, by rinse bath 4
Liquidometer 5 and the interlocking of regulating valve 7 adjust, keep the level stability in rinse bath 4, it can be achieved that system is automatic, safe and stable fortune
Row.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (2)
1. a kind of offline cleaning process of primary cooler lower section, which is characterized in that the primary cooler is more parallel connections, when certain primary cooler
Lower section when needing to clean, be first turned off corresponding primary cooler, be at off-line state, then sprayed using lower section condensate circulation
It spills system and primary cooler lower section is cleaned with hot ammonium hydroxide to corresponding primary cooler lower section sprinkling cleaning；Hot ammonium hydroxide after cleaning passes through
Lower liquid pipe road flows into rinse bath, then will drain into the tar ammonia in gas-liquid separator downstream outside the hot ammonium hydroxide after cleaning by cleaning pump
Pipeline；It is successively passed through hot ammonium hydroxide into corresponding primary cooler lower section, the cleaning until completing primary cooler lower section.
2. a kind of primary cooler lower section membrane off-line cleaning system for realizing technique described in claim 1, the primary cooler is more
Parallel connection, spray equipment is set at the top of every primary cooler lower section, and spray equipment connects primary cooler lower section by condensate circulation pipeline
The condensate outlet of bottom sets gradually water sealed tank, lower section condensation liquid bath along condensate flow direction on condensate circulation pipeline
And condensate circulation pump；It is characterized in that, the membrane off-line cleaning system includes U-shaped water seal, rinse bath, cleaning pump and Liquid level
Device；Hot ammonia inlet is set on the condensate circulation pipeline of spray equipment upstream, hot ammonia inlet passes through hot ammonia inlet pipeline
It is connected with the hot ammonium hydroxide conveyance conduit of coke-oven plant, sets controlled valve on hot ammonia inlet pipeline；Primary cooler lower section and water sealed tank it
Between condensate circulation pipeline on set the outlet of cleaning ammonium hydroxide, pass through cleaning ammonia water pipeline and connect gas-liquid point in raw coke oven gas recovery system
Tar ammonia pipeline from device downstream；Along cleaning after hot ammonium hydroxide flow direction, clean ammonia water pipeline on be successively arranged U-shaped water seal,
Rinse bath, cleaning pump and regulating valve, the regulating valve and the liquidometer interlocking composition fluid level control device being set on rinse bath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469242.XA CN109405631A (en) | 2018-12-04 | 2018-12-04 | A kind of offline cleaning process of primary cooler lower section and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811469242.XA CN109405631A (en) | 2018-12-04 | 2018-12-04 | A kind of offline cleaning process of primary cooler lower section and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109405631A true CN109405631A (en) | 2019-03-01 |
Family
ID=65456957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811469242.XA Pending CN109405631A (en) | 2018-12-04 | 2018-12-04 | A kind of offline cleaning process of primary cooler lower section and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109405631A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683103A (en) * | 2020-12-30 | 2021-04-20 | 国家能源集团煤焦化有限责任公司 | Cleaning device for primary cooler cooling pipe, coke oven gas cooling device and coke oven assembly |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2173975A1 (en) * | 1972-02-29 | 1973-10-12 | Koppers Gmbh Heinrich | Coke oven gas cooling system - combined with naphtalene scrubbing in same column in counterflow |
| DE2652499A1 (en) * | 1976-11-18 | 1978-05-24 | Otto & Co Gmbh Dr C | Cooling of coke oven gas - in two stages sepd. by spraying with condensate to remove naphthalene |
| CN101698806A (en) * | 2009-05-25 | 2010-04-28 | 莱芜钢铁股份有限公司 | Gravity-flow type efflux technology of condensate of coal gas primary cooler |
| CN201545809U (en) * | 2009-11-07 | 2010-08-11 | 新兴铸管股份有限公司 | Coking coal gas primary cooler and final cooling tower naphthalene plugging clearing device |
| CN202182673U (en) * | 2011-06-29 | 2012-04-04 | 鞍钢股份有限公司 | Primary cooler condensate replacement device |
| CN102796542A (en) * | 2012-08-15 | 2012-11-28 | 四川达兴能源股份有限公司 | Primary cooler cleaning method and cleaning system |
| CN203625306U (en) * | 2014-01-03 | 2014-06-04 | 临沂恒昌焦化股份有限公司 | Sweeping-free device of primary cooler |
| CN108561756A (en) * | 2018-05-14 | 2018-09-21 | 长沙医学院 | Raw coke oven gas pipeline condenses liquor treating process before a kind of primary cooler |
| CN208008734U (en) * | 2018-01-30 | 2018-10-26 | 鄂托克旗红缨煤焦化有限责任公司 | The condensate of primary cooler circulatory system |
| CN209512640U (en) * | 2018-12-04 | 2019-10-18 | 中冶焦耐(大连)工程技术有限公司 | A kind of primary cooler lower section membrane off-line cleaning system |
-
2018
- 2018-12-04 CN CN201811469242.XA patent/CN109405631A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2173975A1 (en) * | 1972-02-29 | 1973-10-12 | Koppers Gmbh Heinrich | Coke oven gas cooling system - combined with naphtalene scrubbing in same column in counterflow |
| DE2652499A1 (en) * | 1976-11-18 | 1978-05-24 | Otto & Co Gmbh Dr C | Cooling of coke oven gas - in two stages sepd. by spraying with condensate to remove naphthalene |
| CN101698806A (en) * | 2009-05-25 | 2010-04-28 | 莱芜钢铁股份有限公司 | Gravity-flow type efflux technology of condensate of coal gas primary cooler |
| CN201545809U (en) * | 2009-11-07 | 2010-08-11 | 新兴铸管股份有限公司 | Coking coal gas primary cooler and final cooling tower naphthalene plugging clearing device |
| CN202182673U (en) * | 2011-06-29 | 2012-04-04 | 鞍钢股份有限公司 | Primary cooler condensate replacement device |
| CN102796542A (en) * | 2012-08-15 | 2012-11-28 | 四川达兴能源股份有限公司 | Primary cooler cleaning method and cleaning system |
| CN203625306U (en) * | 2014-01-03 | 2014-06-04 | 临沂恒昌焦化股份有限公司 | Sweeping-free device of primary cooler |
| CN208008734U (en) * | 2018-01-30 | 2018-10-26 | 鄂托克旗红缨煤焦化有限责任公司 | The condensate of primary cooler circulatory system |
| CN108561756A (en) * | 2018-05-14 | 2018-09-21 | 长沙医学院 | Raw coke oven gas pipeline condenses liquor treating process before a kind of primary cooler |
| CN209512640U (en) * | 2018-12-04 | 2019-10-18 | 中冶焦耐(大连)工程技术有限公司 | A kind of primary cooler lower section membrane off-line cleaning system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112683103A (en) * | 2020-12-30 | 2021-04-20 | 国家能源集团煤焦化有限责任公司 | Cleaning device for primary cooler cooling pipe, coke oven gas cooling device and coke oven assembly |
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Application publication date: 20190301 |