CN109777448A - A kind of coke oven coke oven uprising tube raw coke oven gas waste heat is used to that tube furnace to be replaced to take off benzene device - Google Patents
A kind of coke oven coke oven uprising tube raw coke oven gas waste heat is used to that tube furnace to be replaced to take off benzene device Download PDFInfo
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- CN109777448A CN109777448A CN201910245478.3A CN201910245478A CN109777448A CN 109777448 A CN109777448 A CN 109777448A CN 201910245478 A CN201910245478 A CN 201910245478A CN 109777448 A CN109777448 A CN 109777448A
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- coke oven
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- rich oil
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- 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
Abstract
A kind of coke oven coke oven uprising tube raw coke oven gas waste heat is used to that tube furnace to be replaced to take off benzene device, including coke oven coke oven uprising tube, drum, cylinder, rich oil heater, deoxygenation water feeder and de- benzene device；One end of coke oven coke oven uprising tube connects coke oven, the other end passes through piping connection drum first entrance, the first outlet of drum passes through the entrance of piping connection cylinder, and the outlet of cylinder passes through the first entrance of piping connection rich oil heater, and the first outlet of rich oil heater connects de- benzene device；Drum second entrance connects deoxygenation water feeder.Coke oven coke oven uprising tube crude-gas sensible heat recovery system recycles a large amount of energy, while rich oil heat exchanger technology substitutes tube furnace, eliminates existing tubular type furnace system operation hidden danger, and gas saving reduces oil washing consumption.
Description
Technical field
The invention belongs to coking industry residual heat utilizing technology of coke oven crude gas field, in particular to a kind of coke oven coke oven uprising tube is waste
Coal gas waste heat is used to that tube furnace to be replaced to take off benzene device.
Background technique
The tedge famine sensible heat coal gas of coke-oven plant is not all recycled mostly at present, is changed and is produced workshop crude benzol workshop section de-benzene process
Using diamond heating rich oil, use a large amount of coal gas as heat source in production process.In country's promotion energy-saving and emission-reduction and increasingly
Under the dynamics of stringent environment protection treating, existing production method is disagreed with current energy policy and environmental protection policy.
Original tube furnace crude benzol process flow there are the problem of, found through long term production, the tubular type of this process flow
There are problems for furnace, seriously affect safety in production and the circulating washing oil consumption of crude benzol workshop section.
(1) there are major safety risks for tube furnace, seriously affect the safety in production of crude benzol workshop section.
A) there are security risks for the burner hearth saturated oil tube of tube furnace.After heating for a long time, saturated oil tube can be by burner hearth
Gradually aging, tube wall is thinning, is leaked using rich oil can occur after certain time limit, and the rich oil leaked in the burner hearth of tube furnace meets open fire
Fire can occur, cause the halt production of crude benzol workshop section, that is, influence production and cause safety accident again；And there are localized hyperthermia's situation,
Rich oil forms carbonization slagging.
B) there are security risks for the gas heating system of tube furnace.Tube furnace uses coke-stove gas to add as heat source to rich oil
Heat, in process of production, coke-stove gas are inevitably interrupted, if cannot handle in time at this time, easily tube furnace are caused to be tempered, are caused pipe
The explosion of formula furnace.This accident happens occasionally in coking, and production loss is inestimable or even casualties.
(2) high temperature of tube furnace accelerates the rate of deterioration of washing oil, and oil washing consumption is caused to increase.Temperature in tube furnace burner hearth
At 700 DEG C or more, rich oil operates at this temperature for a long time, higher with tube wall contact portion rich oil local temperature, necessarily makes richness
The rate that party reaction occurs at high temperature for the unsaturated compound in oil is accelerated, circulating washing oil deterioration, and benzene effect is washed in influence
Fruit causes oil washing consumption to increase.
(3) tube furnace consumes coke-stove gas, and about 400 DEG C of exhaust gas temperature, extremely waste of resource are uneconomical；Generate pollution ring
Border exhaust gas.
Original coke oven operation process and de-benzene process, there is only the above tube furnace problems, while raw coke oven gas wastes
A large amount of thermal energy does not meet the using energy source policy of clean manufacturing and energy-saving and emission-reduction.
Summary of the invention
It is used to that tube furnace be replaced to take off benzene device the purpose of the present invention is to provide a kind of coke oven coke oven uprising tube raw coke oven gas waste heat, with
It solves the above problems.
To achieve the above object, the invention adopts the following technical scheme:
A kind of coke oven coke oven uprising tube raw coke oven gas waste heat is used to that tube furnace to be replaced to take off benzene device, including coke oven coke oven uprising tube, drum, vapour
Cylinder, rich oil heater, deoxygenation water feeder and de- benzene device；One end of coke oven coke oven uprising tube connects coke oven, and the other end passes through pipe
Road connects drum first entrance, and the first outlet of drum passes through the entrance of piping connection cylinder, and the outlet of cylinder is connected by pipeline
The first entrance of rich oil heater is connect, the first outlet of rich oil heater connects de- benzene device；Drum second entrance connects deoxygenation
Water feeder.Rich oil heater heats rich oil by the steam of steam pipeline, and the steam of cooling passes through sudden strain of a muscle after heat transfer
The water condensed out after steaming pot returns to tedge by condensate line through condensate pump and is recycled.
Further, deoxygenation water feeder includes desalination water feeder and oxygen-eliminating device；Desalination water feeder passes through
The outlet of the first entrance of piping connection oxygen-eliminating device, oxygen-eliminating device passes through piping connection drum second entrance.
Further, desalination water feeder includes sweet-water tank and desalination water pump, and sweet-water tank is arrived by piping connection
The first entrance of oxygen-eliminating device, desalination water pump are arranged on the pipeline between sweet-water tank and oxygen-eliminating device.
Further, circulating pump is provided between drum and coke oven coke oven uprising tube, one end of circulating pump passes through piping connection vapour
The second outlet of packet, the other end are connected to by pipeline with coke oven coke oven uprising tube.
Further, the second outlet of rich oil heater connects flash tank, the first outlet connection oxygen-eliminating device of flash tank
Second entrance, the third entrance of the second outlet connection drum of flash tank.
Further, the second entrance of rich oil heater connects rich oil slot.
Further, taking off benzene device includes crude benzol condenser and debenzolizing tower, and the first outlet of rich oil heater connects crude benzol
The outlet of the entrance of condenser, crude benzol condenser connects debenzolizing tower.
Compared with prior art, the present invention has following technical effect:
The present invention using ascending tube crude-gas in coke-oven plant's coke oven operational process sensible heat, using tedge by converting heat
At steam, gas-liquid separation is carried out in drum, the steam of generation is used for Tuo Ben workshop section, and the water isolated is through forced circulation pump upper
Heat exchange cycle is carried out in riser again to continue to generate steam.The steam zone water that walks is fed after deoxygenation by demineralized water.Using rich oil
Heat exchanger technology enters rich oil heater by pipeline using saturated vapor, and steam is changed with rich oil in rich oil heater
Heat enters Tuo Ben workshop section after rich oil heating.Coke oven coke oven uprising tube crude-gas sensible heat recovery system recycles a large amount of energy, while rich oil
Heat exchanger technology substitutes tube furnace, eliminates existing tubular type furnace system operation hidden danger, and gas saving reduces oil washing consumption.
Coke oven coke oven uprising tube raw coke oven gas waste heat be used for instead of diamond heating rich oil device process route using " tedge --
Drum -- cylinder -- rich oil heater -- Tuo Ben workshop section " technique, equipment can satisfy the technique fortune of existing Tuo Ben workshop section after processing
Row requires.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Wherein: 1, desalination water feeder；2, oxygen-eliminating device；3, drum；4, cylinder；5, coke oven coke oven uprising tube；6, circulating pump；7,
Rich oil heater；8, flash tank；9, benzene device is taken off；10, rich oil slot.
Specific embodiment
Below in conjunction with attached drawing, the present invention is further described:
A kind of coke oven coke oven uprising tube raw coke oven gas waste heat is used to replacing tube furnace to take off benzene device, including coke oven coke oven uprising tube 5, drum 3,
Cylinder 4, rich oil heater 7, deoxygenation water feeder and de- benzene device 9；One end of coke oven coke oven uprising tube 5 connects coke oven, the other end
By 3 first entrance of piping connection drum, the first outlet of drum 3 passes through the entrance of piping connection cylinder 4, the outlet of cylinder 4
By the first entrance of piping connection rich oil heater 7, the first outlet of rich oil heater 7 connects de- benzene device 9；Drum 3
Two entrances connect deoxygenation water feeder.
Deoxygenation water feeder includes desalination water feeder 1 and oxygen-eliminating device 2；Desalination water feeder 1 is connected by pipeline
The first entrance of oxygen-eliminating device 2 is connect, the outlet of oxygen-eliminating device 2 passes through 3 second entrance of piping connection drum.
Desalination water feeder 1 includes sweet-water tank and desalination water pump, and sweet-water tank passes through piping connection to oxygen-eliminating device 2
First entrance, desalination water pump are arranged on the pipeline between sweet-water tank and oxygen-eliminating device 2.
Circulating pump 6 is provided between drum 3 and coke oven coke oven uprising tube 5, one end of circulating pump 6 passes through piping connection drum 3
Second outlet, the other end are connected to by pipeline with coke oven coke oven uprising tube 5.
The second outlet of rich oil heater 7 connects flash tank 8, and the second of the first outlet connection oxygen-eliminating device 2 of flash tank 8 enters
Mouthful, the third entrance of the second outlet connection drum 3 of flash tank 8.
The second entrance of rich oil heater 7 connects rich oil slot 10.
De- benzene device 9 includes crude benzol condenser and debenzolizing tower, and the first outlet of rich oil heater 7 connects crude benzol condenser
The outlet of entrance, crude benzol condenser connects debenzolizing tower.
Demineralized water is connected by feed pump with oxygen-eliminating device, for providing technique moisturizing to oxygen-eliminating device and drum.
Wherein oxygen-eliminating device is connected with drum, for providing qualified deaerated water to drum.
Wherein drum is connected with forced circulation pump and tedge, for exchanging the sensible heat of ascending tube crude-gas.
Wherein cylinder is connected by steam pipework with rich oil heater, is exchanged heat for rich oil.
Wherein rich oil heater is connected with flash tank and rich oil slot.Rich oil slot provide rich oil circulation, flash tank to steam into
Row steam-water separation.
Wherein flash tank is connected with drum and oxygen-eliminating device, and isolated steam is recycled.
Wherein rich oil heater is connected with de- benzene section, subsequent progress benzene removing.
It is used to replace diamond heating rich oil device the present invention provides a kind of coke-oven plant's coke oven coke oven uprising tube raw coke oven gas waste heat,
As shown in Figure 1, including that tedge is connect by forced circulation pump and pipeline with drum；Drum is connect with cylinder；Cylinder and rich oil
Heater is connected；Rich oil heater is connect with flash tank and Tuo Ben workshop section；Flash tank is connect with oxygen-eliminating device and drum.Demineralized water is logical
It crosses water supply pump and pipeline is connected with oxygen-eliminating device and drum.
The working principle of the invention is: using distinctive tedge by drum come hot water heating generate steam at drum
Steam-water separation is carried out, isolated steam is entered rich oil heater by cylinder by the road, by steam and rich oil in rich oil heater
Heat exchange, rich oil are heated to 175 DEG C ± 5 DEG C by 135 DEG C ± 5 DEG C and carry out de- benzene into Tuo Ben workshop section, and rich oil heater steam becomes
Enter flash tank by drain valve for the condensed water under same pressure, the low-pressure saturated steam that flash tank flashes off is incorporated to low-voltage tube
Net, remaining high-temperature water cooling condensate squeeze into drum in raw coke oven gas tedge heat-exchange system by condensate pump.Utilize the aobvious of raw coke oven gas
Thermogenetic steam supplies energy to rich oil and finally carries out de- benzene.
It is used to that tube furnace be replaced to take off benzene device the invention discloses a kind of coke oven coke oven uprising tube raw coke oven gas waste heat in coke-oven plant, it is open
The process route of heat source of crude-gas sensible heat recycling in coke-oven plant's for taking off benzene is using " -- rich oil adds drum -- cylinder -- tedge
Hot device -- Tuo Ben workshop section " technique, including tedge are connect by forced circulation pump and pipeline with drum；Drum is connect with cylinder；
Cylinder is connected with rich oil heater；Rich oil heater is connect with flash tank and Tuo Ben workshop section；Flash tank and oxygen-eliminating device and drum connect
It connects.Demineralized water is connected by water supply pump and pipeline with oxygen-eliminating device and drum.Logistics supply is realized by piping connection, it is final to realize
The recycling of ascending tube crude-gas sensible heat, and recycling heat is used for Tuo Ben workshop section, rich oil heat exchanger technology substitutes tube furnace, eliminates
Existing tubular type furnace system runs hidden danger, and gas saving reduces oil washing consumption.Realize that coke oven clean manufacturing reaches energy-saving mesh
's.
Claims (7)
1. a kind of coke oven coke oven uprising tube raw coke oven gas waste heat is used to that tube furnace to be replaced to take off benzene device, which is characterized in that rise including coke oven
Manage (5), drum (3), cylinder (4), rich oil heater (7), deoxygenation water feeder and de- benzene device (9)；Coke oven coke oven uprising tube (5)
One end connect coke oven, for the other end by piping connection drum (3) first entrance, the first outlet of drum (3) passes through pipeline company
The entrance of cylinder (4) is connect, the outlet of cylinder (4) passes through the first entrance of piping connection rich oil heater (7), rich oil heater
(7) first outlet connects de- benzene device (9)；Drum (3) second entrance connects deoxygenation water feeder.
2. a kind of coke oven coke oven uprising tube raw coke oven gas waste heat according to claim 1 is used to that tube furnace to be replaced to take off benzene device, special
Sign is that deoxygenation water feeder includes desalination water feeder (1) and oxygen-eliminating device (2)；Desalination water feeder (1) passes through pipe
Road connects the first entrance of oxygen-eliminating device (2), and the outlet of oxygen-eliminating device (2) passes through piping connection drum (3) second entrance.
3. a kind of coke oven coke oven uprising tube raw coke oven gas waste heat according to claim 2 is used to that tube furnace to be replaced to take off benzene device, special
Sign is that desalination water feeder (1) includes sweet-water tank and desalination water pump, and sweet-water tank passes through piping connection to oxygen-eliminating device
(2) first entrance, desalination water pump setting is on the pipeline between sweet-water tank and oxygen-eliminating device (2).
4. a kind of coke oven coke oven uprising tube raw coke oven gas waste heat according to claim 1 is used to that tube furnace to be replaced to take off benzene device, special
Sign is, is provided between drum (3) and coke oven coke oven uprising tube (5) circulating pump (6), and one end of circulating pump (6) passes through piping connection
The second outlet of drum (3), the other end are connected to by pipeline with coke oven coke oven uprising tube (5).
5. a kind of coke oven coke oven uprising tube raw coke oven gas waste heat according to claim 1 is used to that tube furnace to be replaced to take off benzene device, special
Sign is that the second outlet of rich oil heater (7) connects flash tank (8), and the first outlet of flash tank (8) connects oxygen-eliminating device (2)
Second entrance, flash tank (8) second outlet connection drum (3) third entrance.
6. a kind of coke oven coke oven uprising tube raw coke oven gas waste heat according to claim 1 is used to that tube furnace to be replaced to take off benzene device, special
Sign is that the second entrance of rich oil heater (7) connects rich oil slot (10).
7. a kind of coke oven coke oven uprising tube raw coke oven gas waste heat according to claim 1 is used to that tube furnace to be replaced to take off benzene device, special
Sign is that de- benzene device (9) include crude benzol condenser and debenzolizing tower, the first outlet connection crude benzol condensation of rich oil heater (7)
The outlet of the entrance of device, crude benzol condenser connects debenzolizing tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910245478.3A CN109777448A (en) | 2019-03-28 | 2019-03-28 | A kind of coke oven coke oven uprising tube raw coke oven gas waste heat is used to that tube furnace to be replaced to take off benzene device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910245478.3A CN109777448A (en) | 2019-03-28 | 2019-03-28 | A kind of coke oven coke oven uprising tube raw coke oven gas waste heat is used to that tube furnace to be replaced to take off benzene device |
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| CN109777448A true CN109777448A (en) | 2019-05-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910245478.3A Pending CN109777448A (en) | 2019-03-28 | 2019-03-28 | A kind of coke oven coke oven uprising tube raw coke oven gas waste heat is used to that tube furnace to be replaced to take off benzene device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776962A (en) * | 2019-10-11 | 2020-02-11 | 临涣焦化股份有限公司 | Device and method for heating rich oil and removing benzene by using waste heat of coke oven ascending pipe |
| CN114774137A (en) * | 2022-04-29 | 2022-07-22 | 中冶焦耐(大连)工程技术有限公司 | Coke oven riser waste heat steam production heating reheating method and system |
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| GB1017871A (en) * | 1962-02-17 | 1966-01-19 | Power Gas Ltd | Improvements in and relating to the manufacture of combustible gases |
| CN103436271A (en) * | 2013-08-30 | 2013-12-11 | 常州江南电力节能科技有限公司 | System for recycling raw gas afterheat of coke oven |
| CN104119962A (en) * | 2013-04-26 | 2014-10-29 | 江苏沂州煤焦化有限公司 | Technology for heating rich oil by coke oven flue gas waste heat |
| CN104132321A (en) * | 2014-08-20 | 2014-11-05 | 杨承诣 | Method for recycling and utilizing waste heat of raw coke oven gas |
| CN208594234U (en) * | 2018-06-14 | 2019-03-12 | 西藏明汇资产管理有限公司 | A kind of residual heat heat-exchanging device recycling raw coke over gas riser |
-
2019
- 2019-03-28 CN CN201910245478.3A patent/CN109777448A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1017871A (en) * | 1962-02-17 | 1966-01-19 | Power Gas Ltd | Improvements in and relating to the manufacture of combustible gases |
| CN104119962A (en) * | 2013-04-26 | 2014-10-29 | 江苏沂州煤焦化有限公司 | Technology for heating rich oil by coke oven flue gas waste heat |
| CN103436271A (en) * | 2013-08-30 | 2013-12-11 | 常州江南电力节能科技有限公司 | System for recycling raw gas afterheat of coke oven |
| CN104132321A (en) * | 2014-08-20 | 2014-11-05 | 杨承诣 | Method for recycling and utilizing waste heat of raw coke oven gas |
| CN208594234U (en) * | 2018-06-14 | 2019-03-12 | 西藏明汇资产管理有限公司 | A kind of residual heat heat-exchanging device recycling raw coke over gas riser |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110776962A (en) * | 2019-10-11 | 2020-02-11 | 临涣焦化股份有限公司 | Device and method for heating rich oil and removing benzene by using waste heat of coke oven ascending pipe |
| CN114774137A (en) * | 2022-04-29 | 2022-07-22 | 中冶焦耐(大连)工程技术有限公司 | Coke oven riser waste heat steam production heating reheating method and system |
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Application publication date: 20190521 |
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