CN106318409A - Process for replacing coke oven gas by gasifying furnace gas - Google Patents
Process for replacing coke oven gas by gasifying furnace gas Download PDFInfo
- Publication number
- CN106318409A CN106318409A CN201610710504.1A CN201610710504A CN106318409A CN 106318409 A CN106318409 A CN 106318409A CN 201610710504 A CN201610710504 A CN 201610710504A CN 106318409 A CN106318409 A CN 106318409A
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- China
- Prior art keywords
- gas
- coke
- air
- flue
- gasifier
- 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.)
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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
- C10B21/00—Heating of coke ovens with combustible gases
- C10B21/02—Heating of coke ovens with combustible gases with lean gas
-
- 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
- C10B21/00—Heating of coke ovens with combustible gases
- C10B21/10—Regulating and controlling the combustion
- C10B21/18—Recirculating the flue gases
Abstract
The invention relates to coal chemical industry, especially to a process for replacing coke oven gas with gasifying furnace gas. The process comprises: lean gas flow,air flow and waste gas flow,using gasifying furnace inferior gas to replace coke oven gas of high quality.Proved by productive practice,the benefit of using gasifying furnace gas to replace coke oven gas is significant.In today's severe situation to better decrease cost and increase efficiency,saving resources and improving the quality of environment solve a problem in this field,and bring new opportunities for the development of deep processing of coal coking . The process can greatly reduce the cost .The furnace temperature can reach given standard temperature and don't need blend coke oven gas.View from the safety,It's safe and reliable when properly operates,truely achieve the effect of high quality,low consumption and high efficiency.
Description
Technical field
The present invention relates to technical field of coal chemical industry, especially relate to the technique that a kind of gasifier gas substitutes coke-stove gas
Method.
Background technology
At present, along with rapid development of economy, national strategy demand is still for Development of Coal Chemical Engineering Technology, and has preferably
Economic benefit.The following development need of Coal Chemical Industry constantly carries out technology upgrading, solves the bottleneck that development faces from source.Some
Touch environmental protection red line, the most halted enterprise and product, cannot be approved by market at all.And, the product of traditional coke oven equipment
Narrow-minded, fuel select there is limitation, therefore, the energy saving environmental protection product become more meticulous will be coal chemical industry weight in it
Weight.
Summary of the invention
It is an object of the invention to provide a kind of gasifier gas and substitute the process of coke-stove gas, existing to solve
Present in technology, the gas production of traditional coke oven equipment is little, and fuel selects have circumscribed technical problem.
For solving above-mentioned technical problem, the present invention provides a kind of gasifier gas to substitute the process of coke-stove gas,
Comprising:
S1, poor gas flow process
Gasification furnace poor gas is incorporated to poor gas main pipeline through gasification furnace pressurizing point, by the eye on coke oven poor gas main pipeline
Mirror valve, regulation turnover panel enter cokery side and are in charge of, and are automatically adjusted electrodynamic valve, effusion meter, plus-minus cock, orifice plate box through cokery side, give up
Gas shutter connecting tube, ascending air waste gas valve, bottom flue, bamboo comb brick, gas regenerator, coal gas chute enter burning
Room, for the air mixed combustion come with air chute；
S2, air flow process
Air is through ascending air waste gas valve, air poultry hot cell bottom flue, double-edged fine-toothed comb brick, air regenerator, air chute
The poor gas mixed combustion come with coal gas chute mouth；
S3, waste gas flow process
A waste gas part after combustion chambers burn is through crossing over hole, chute, regenerator, double-edged fine-toothed comb brick, bottom flue, down current
Waste gas valve, cokery side divide flue, cokery side to divide flue turnover panel, main chimney flue, main chimney flue turnover panel to discharge from chimney, another part
Enter ascending air through circulation port and supplement air.
Further, the described process with gasifier gas replacement coke-stove gas also includes: in view of because of gasification
Stove occur poor gas calorific value is low or poor gas not enough in the case of, described coke-stove gas supervisor is provided with coke-oven coal style
Enter pipe as emergency power.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described cokery side coal
Gas main pipe pressure controls at 800-1500Pa.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described coal gas accumulation of heat
Room controls at 1100 DEG C-1200 DEG C.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described poor gas arrives
Reach combustor and be preheating to more than 800 DEG C.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described air accumulation of heat
The temperature of room controls at 1100 DEG C-1200 DEG C.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described air arrives
Combustor is preheating to more than 800 DEG C.
Further, the described process with gasifier gas replacement coke-stove gas also includes: it is useless that burning produces
Gas is entered decline quirk by rising quirk through crossing over hole, and arriving to decline has the waste gas of 1/3rd to pass through bottom cycle bottom quirk
Hole returns to rise quirk and waters down gas concentration, elongates flame.
Further, the described process with gasifier gas replacement coke-stove gas also includes: arrives and declines quirk
Bottom have the waste gas of 2/3rds sequentially enter decline quirk chute, gas regenerator, double-edged fine-toothed comb brick, bottom flue, down current give up
Gas dish, point flue, point flue turnover panel, main chimney flue, main chimney flue turnover panel, chimney, finally enter air.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described point of flue temperature
Degree controls at 250 DEG C-350 DEG C.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described point of flue is inhaled
Power controls at 260-270Pa.
Use technique scheme, there is advantages that
The present invention provides a kind of gasifier gas to substitute the process of coke-stove gas, utilizes gasification furnace poor quality coal gas to replace
For high-quality coke-stove gas, proved by production practices, substitute coke-stove gas economic benefits with gasifier gas, now
Jiao for more preferable cost efficiency, economizes on resources, improves environmental quality, solve in industry in the case of the situation is tense
Hang-up, brings new opportunity for coking of coal deep processing development.This process can greatly reduce cost, need not blend Jiao
Producer gas furnace temperature can reach regulation standard temperature, as long as operating from secure context, safe and reliable, be truly realized high-quality,
Low consumption, efficient effect.
Accompanying drawing explanation
In order to be illustrated more clearly that the specific embodiment of the invention or technical scheme of the prior art below will be to specifically
In embodiment or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The flow chart of the process substituting coke-stove gas with gasifier gas that Fig. 1 provides for the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is clearly and completely described, it is clear that described enforcement
Example is a part of embodiment of the present invention rather than whole embodiments.Based on the embodiment in the present invention, ordinary skill
The every other embodiment that personnel are obtained under not making creative work premise, broadly falls into the scope of protection of the invention.
In describing the invention, it should be noted that term " " center ", " on ", D score, "left", "right", " vertically ",
Orientation or the position relationship of the instruction such as " level ", " interior ", " outward " they are based on orientation shown in the drawings or position relationship, merely to
Be easy to describe the present invention and simplifying describe rather than instruction or the hint device of indication or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.Additionally, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicate or hint relative importance.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or be integrally connected；Can
To be mechanical connection, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, can understand that above-mentioned term is at this with concrete condition
Concrete meaning in invention.
Below by specific embodiment and combine accompanying drawing the present invention is described in further detail.
As it is shown in figure 1, the present invention provides a kind of gasifier gas to substitute the process of coke-stove gas, comprising:
S1, poor gas flow process
Gasification furnace poor gas is incorporated to poor gas main pipeline through gasification furnace pressurizing point, by the eye on coke oven poor gas main pipeline
Mirror valve, regulation turnover panel enter cokery side and are in charge of, and are automatically adjusted electrodynamic valve, effusion meter, plus-minus cock, orifice plate box through cokery side, give up
Gas shutter connecting tube, ascending air waste gas valve, bottom flue, bamboo comb brick, gas regenerator, coal gas chute enter burning
Room, for the air mixed combustion come with air chute；
S2, air flow process
Air is through ascending air waste gas valve, air poultry hot cell bottom flue, double-edged fine-toothed comb brick, air regenerator, air chute
The poor gas mixed combustion come with coal gas chute mouth；
S3, waste gas flow process
A waste gas part after combustion chambers burn is through crossing over hole, chute, regenerator, double-edged fine-toothed comb brick, bottom flue, down current
Waste gas valve, cokery side divide flue, cokery side to divide flue turnover panel, main chimney flue, main chimney flue turnover panel to discharge from chimney, another part
Enter ascending air through circulation port and supplement air.
Further, the described process with gasifier gas replacement coke-stove gas also includes: in view of because of gasification
Stove occur poor gas calorific value is low or poor gas not enough in the case of, described coke-stove gas supervisor is provided with coke-oven coal style
Enter pipe as emergency power.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described cokery side coal
Gas main pipe pressure controls at 800-1500Pa.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described coal gas accumulation of heat
Room controls at 1100 DEG C-1200 DEG C.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described poor gas arrives
Reach combustor and be preheating to more than 800 DEG C.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described air accumulation of heat
The temperature of room controls at 1100 DEG C-1200 DEG C.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described air arrives
Combustor is preheating to more than 800 DEG C.
Further, the described process with gasifier gas replacement coke-stove gas also includes: it is useless that burning produces
Gas is entered decline quirk by rising quirk through crossing over hole, and arriving to decline has the waste gas of 1/3rd to pass through bottom cycle bottom quirk
Hole returns to rise quirk and waters down gas concentration, elongates flame.
Further, the described process with gasifier gas replacement coke-stove gas also includes: arrives and declines quirk
Bottom have the waste gas of 2/3rds sequentially enter decline quirk chute, gas regenerator, double-edged fine-toothed comb brick, bottom flue, down current give up
Gas dish, point flue, point flue turnover panel, main chimney flue, main chimney flue turnover panel, chimney, finally enter air.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described point of flue temperature
Degree controls at 250 DEG C-350 DEG C.
Further, the described process with gasifier gas replacement coke-stove gas also includes: described point of flue is inhaled
Power controls at 260-270Pa.
Based on said method, applicant has mainly made amendment following aspects:
One, from design, bold improvement has been carried out.
1. adjust chute mouth size and adjusting brick arrangement, adjust air scoop and gas port sectional area, it is ensured that coal gas amount is with empty
Tolerance reasonably combined.As: cokery side burner coal gas chute mouth puts one piece of adjusting brick, and air chute mouth is put two pieces of adjusting bricks, made
The coal gas amount of burner is bigger, improves the height of burner to heating, prevents again cold air to seal in the impact on burner.Cokery side
Second quirk coal gas chute mouth puts two pieces of adjusting bricks, and air chute mouth puts one piece of adjusting brick, and air capacity shows slightly big, improves burner
The temperature at position.End flue temperature is stable more than 1150 DEG C, solves a difficult problem for end flue temperature regulation difficulty.
2. double-edged fine-toothed comb brick uses diffusion type double-edged fine-toothed comb brick, and below double-edged fine-toothed comb brick, aperture is more and more less to middle part by burner, aperture, top
Contrast, is effectively assigned with Gas Flow, air stream, waste gas stream.The each regenerator of cokery side divides seven groups of double-edged fine-toothed comb bricks, by middle part
Aperture, two groups of double-edged fine-toothed comb brick bottoms is identical, is effectively prevented because middle part coal gas and static air pressure head are excessive and make coke oven middle portion temperature
Uneven.
3. heat levels height is increased to 780mm by original 765mm, makes furnace roof space temperature by original higher than 800
DEG C drop to 770-800 DEG C, improve the response rate of chemical products.
Two, from technique, useful exploration has been carried out.
1. due to poor gas heating be not easy intuitively to see fire, so to keep straight on regulation, ensure peephole pressure 0 to+
Time in the range of 10Pa, when taking temperature low, first add air, after add coal gas, temperature Gao Shixian subtracts coal gas, after subtract air.That is
Regulate air capacity when temperature is low, increase and decrease further according to situation regulating orifice plate, during temperature height, first reduce coal gas amount, reduce further according to situation
Store top suction.The most both ensure that the stability of peephole pressure and craspedodrome, in turn ensure that coefficient of excess air.
The most within the specific limits, reduce as far as possible and store top suction (≯ 80Pa), improve peephole pressure (peephole pressure 0-
10Pa), to reduce the cold air that envelope wall seals in, it is ensured that the gas quality that burner enters, end flue temperature is stablized.
3. pair horizontally-arranged regulation, in addition to indivedual chute mouths are problematic, uses which quirk in the past high or low, and just regulation where
The regulation of individual quirk chute turns outside arrangement.The distribution of horizontally-arranged temperature is changed by dynamic head and the hydrostatic head of change bottom flue.Tool
Body way is, on the premise of ensureing that rise and fall storage top suction difference is of substantially equal, end flue temperature is low and middle portion temperature is high, then increase
Macroporous plate and air inlet, reduce and store top suction, and burner hydrostatic head increases, and temperature improves, and middle part hydrostatic head reduces, and temperature reduces,
Middle portion temperature as high in end flue temperature is low the most contrary.
4, the control for the ease of grasp bottom flue temperature in time adds fixing thermometer on waste gas valve, with
Time can observe bottom flue temperature, considerable through operational effect.
Three, in safety, effective control has been carried out.
The most all flanges all use GB SW with outside ring, and valve uses ball valve as far as possible, in the premise not affecting use
Lower minimizing weld bond quantity, is effectively reduced gas leak amount.
2. sampling point is located at the two-layer platform of air circulation, reduces the probability of poisoning.
Four, using effect
1. use poor gas heating, owing to mark temperature drop is low and in coal gas, nitrogen-containing compound reduces and air inlet reduces, make
Nitrogen oxides of exhaust gas content is by original 1200mg/m3It is reduced to 350mg/m3.
2. low due to producer gas calorific value, flame is long, improves high to heating, reduces standard temperature, mark temperature by
1350 DEG C drop to 1310 DEG C.Decrease due to the high temperature infringement to body of heater.
3. save the energy, use coke-stove gas heating to take around 17500 × 13000=227500000 per hour burnt
Ear energy, equal coking time producer gas needs 33000 × 5000=165000000 Joule energy.
4. reduce labor intensity, decrease recruitment personnel.Seldom there is clogging due to producer gas, stablize postwave
Dynamic little, every coke oven is adjusted five that firer can be original and is reduced to four.
5. improve coke quality, metallurgical coke rate is brought up to more than 90% by 87%, and lumpiness is more uniform.
Last it is noted that various embodiments above is only in order to illustrate technical scheme, it is not intended to limit；To the greatest extent
The present invention has been described in detail by pipe with reference to foregoing embodiments, it will be understood by those within the art that: it depends on
So the technical scheme described in foregoing embodiments can be modified, or the most some or all of technical characteristic is entered
Row equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from various embodiments of the present invention technology
The scope of scheme.
Claims (10)
1. the process substituting coke-stove gas with gasifier gas, it is characterised in that including:
S1, poor gas flow process
Gasification furnace poor gas is incorporated to poor gas main pipeline through gasification furnace pressurizing point, by the glasses on coke oven poor gas main pipeline
Valve, regulation turnover panel enter cokery side and are in charge of, and are automatically adjusted electrodynamic valve, effusion meter, plus-minus cock, orifice plate box, waste gas through cokery side
Shutter connecting tube, ascending air waste gas valve, bottom flue, bamboo comb brick, gas regenerator, coal gas chute enter combustor,
For the air mixed combustion come with air chute；
S2, air flow process
Air is through ascending air waste gas valve, air poultry hot cell bottom flue, double-edged fine-toothed comb brick, air regenerator, air chute and coal
The poor gas mixed combustion that gas chute mouth comes；
S3, waste gas flow process
A waste gas part after combustion chambers burn is through crossing over hole, chute, regenerator, double-edged fine-toothed comb brick, bottom flue, down current waste gas
Shutter, cokery side divide flue, cokery side to divide flue turnover panel, main chimney flue, main chimney flue turnover panel to discharge from chimney, and another part is through following
Annular distance enters ascending air and supplements air.
Gasifier gas the most according to claim 1 substitutes the process of coke-stove gas, it is characterised in that also wrap
Include:
In the case of or poor gas low in view of the poor gas calorific value occurred because of gasification furnace is not enough, on described coke-stove gas is responsible for
It is provided with coke-oven coal style and enters pipe as emergency power.
Gasifier gas the most according to claim 1 substitutes the process of coke-stove gas, it is characterised in that also wrap
Include:
Described cokery side coal gas main pipe pressure controls at 800-1500Pa.
Gasifier gas the most according to claim 1 substitutes the process of coke-stove gas, it is characterised in that also wrap
Include:
Described gas regenerator controls at 1100 DEG C-1200 DEG C；
Described poor gas arrives combustor and is preheating to more than 800 DEG C.
Gasifier gas the most according to claim 1 substitutes the process of coke-stove gas, it is characterised in that also wrap
Include:
The temperature of described air regenerator controls at 1100 DEG C-1200 DEG C.
Gasifier gas the most according to claim 1 substitutes the process of coke-stove gas, it is characterised in that also wrap
Include:
Described air arrives combustor and is preheating to more than 800 DEG C.
Gasifier gas the most according to claim 1 substitutes the process of coke-stove gas, it is characterised in that also wrap
Include:
The waste gas that burning produces is entered decline quirk by rising quirk through crossing over hole, and arriving to decline has 1/3rd bottom quirk
Waste gas returns to rise quirk by bottom cycle hole and waters down gas concentration, elongates flame.
Gasifier gas the most according to claim 7 substitutes the process of coke-stove gas, it is characterised in that also wrap
Include:
Arriving to decline has bottom quirk the waste gas of 2/3rds to sequentially enter decline quirk chute, gas regenerator, double-edged fine-toothed comb brick, little
Flue, down current exhaust gas disc, point flue, point flue turnover panel, main chimney flue, main chimney flue turnover panel, chimney, finally enter air.
Gasifier gas the most according to claim 1 substitutes the process of coke-stove gas, it is characterised in that also wrap
Include:
Described point of flue temperature controls at 250 DEG C-350 DEG C.
Gasifier gas the most according to claim 1 substitutes the process of coke-stove gas, it is characterised in that also wrap
Include:
Described point of attraction force control of smoke flue is at 260-270Pa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710504.1A CN106318409A (en) | 2016-08-23 | 2016-08-23 | Process for replacing coke oven gas by gasifying furnace gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610710504.1A CN106318409A (en) | 2016-08-23 | 2016-08-23 | Process for replacing coke oven gas by gasifying furnace gas |
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| Publication Number | Publication Date |
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| CN106318409A true CN106318409A (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610710504.1A Pending CN106318409A (en) | 2016-08-23 | 2016-08-23 | Process for replacing coke oven gas by gasifying furnace gas |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979464A (en) * | 2010-11-15 | 2011-02-23 | 中冶焦耐(大连)工程技术有限公司 | Coke oven burner double-flue supplemental heating method |
| CN102517042A (en) * | 2011-06-21 | 2012-06-27 | 中冶焦耐(大连)工程技术有限公司 | Method for heating coke oven capable of controlling multistage combustion |
| CN103013538A (en) * | 2012-12-21 | 2013-04-03 | 鞍钢股份有限公司 | Method for quickly converting coke oven heating gas |
| CN105176554A (en) * | 2015-09-07 | 2015-12-23 | 中国庆华能源集团有限公司 | Method of controlling coke quality for plateau coking |
| CN105349156A (en) * | 2015-12-02 | 2016-02-24 | 中冶焦耐工程技术有限公司 | Vertical furnace with sectional heating combustion chamber and heating method of vertical furnace |
-
2016
- 2016-08-23 CN CN201610710504.1A patent/CN106318409A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101979464A (en) * | 2010-11-15 | 2011-02-23 | 中冶焦耐(大连)工程技术有限公司 | Coke oven burner double-flue supplemental heating method |
| CN102517042A (en) * | 2011-06-21 | 2012-06-27 | 中冶焦耐(大连)工程技术有限公司 | Method for heating coke oven capable of controlling multistage combustion |
| CN103013538A (en) * | 2012-12-21 | 2013-04-03 | 鞍钢股份有限公司 | Method for quickly converting coke oven heating gas |
| CN105176554A (en) * | 2015-09-07 | 2015-12-23 | 中国庆华能源集团有限公司 | Method of controlling coke quality for plateau coking |
| CN105349156A (en) * | 2015-12-02 | 2016-02-24 | 中冶焦耐工程技术有限公司 | Vertical furnace with sectional heating combustion chamber and heating method of vertical furnace |
Non-Patent Citations (2)
| Title |
|---|
| 《焦化设计参考资料》编写组: "《焦化设计参考资料 上册》", 31 January 1980, 北京：冶金工业出版社 * |
| 刘武镛，孙红艳编著: "《炼焦热工管理》", 31 January 2011, 北京：冶金工业出版社 * |
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