CN206467197U - A kind of coke oven - Google Patents
A kind of coke oven Download PDFInfo
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- CN206467197U CN206467197U CN201720123605.9U CN201720123605U CN206467197U CN 206467197 U CN206467197 U CN 206467197U CN 201720123605 U CN201720123605 U CN 201720123605U CN 206467197 U CN206467197 U CN 206467197U
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Abstract
The utility model provides a kind of coke oven.The coke oven is included by partition wall every setting the flue formed, and the bottom of flue offers gas entry, and gas entry is used to import coal gas into flue；Air intake is offered every coping, partition wall is internally provided with air duct, and the stage casing of partition wall offers the first opening, and the hypomere of partition wall offers the second opening；First opening and the second opening respectively make air duct and flue insertion；Air intake is used to import air into air duct；First opening and the second opening are respectively used to make the air in air duct to enter in flue.The coke oven at the top of partition wall by opening up air intake, and open up the first opening in the stage casing of partition wall, and open up the second opening in the hypomere of partition wall, the temperature of waste gas in flue, which can be made, reduces by 50~100 DEG C, so that the yield of nitrogen oxides of exhaust gas is substantially reduced, and then the content of nitrogen oxides of exhaust gas is greatly reduced, the coke oven is reached the environmental requirement of country.
Description
Technical field
The utility model is related to coking technology field, in particular it relates to a kind of coke oven.
Background technology
Traditional coke oven, air passes through the regenerator preheating being located at below flue, then reaches flue bottom by chute area
Portion；Coke-stove gas is sent to flue bottom by gas piping.In flue bottom, coal gas and air mixed combustion, to coke oven
Heated, to carry out destructive distillation to the wet coal in coke furnace carbonization chamber.
The mixed gas of coal gas and air is in flue base burning, and burning waste gas rises in flue, by vertical fire
The leap hole on road top, is changed into down current；Decline waste gas and be discharged into flue by chute area and regenerator.Flue bottom is set
There is exhaust gas circulation hole, portion is mixed by exhaust gas circulation hole with the burning waste gas risen, reduces the temperature of waste gas.
But the burnt gas temperature of traditional coke oven is generally higher, 1650 DEG C or so are reached, causes the nitrogen oxides in waste gas
(NOX) content it is higher.
In recent years, as country is more and more stricter to the environmental requirement of coke oven, the nitrogen oxides in traditional coke oven waste gas
(NOX) content has been unable to reach the new environmental requirement of country, therefore, for new environmental requirement, coke oven needs replacement upgrading badly.
Utility model content
There is provided a kind of coke oven for above-mentioned technical problem present in prior art for the utility model.The coke oven can be real
In existing flue, one section of coal gas point, air is divided to two sections, endless in flue bottom coal gas and the air that is directed into flue hypomere
Full burning, the mixed gas of waste gas and coal gas after burning is burnt again in the stage casing of flue, so that in flue
The temperature of waste gas can reduce by 50~100 DEG C, and after EGT reduction, the yield of nitrogen oxides of exhaust gas is substantially reduced, and then
The content of nitrogen oxides of exhaust gas is greatly reduced, the coke oven is reached the stricter environmental requirement of country.
The utility model provides a kind of coke oven, including is opened by partition wall every setting the flue formed, the bottom of the flue
Provided with gas entry, the gas entry is used to import coal gas into the flue；It is described to offer air every coping
Entrance, the partition wall is internally provided with air duct, and the stage casing of the partition wall offers the first opening, and the hypomere of the partition wall is opened
Provided with the second opening；First opening and second opening respectively make the air duct and the flue insertion；
The air intake is used to import air into the air duct；First opening and the described second opening are respectively used to make
Air in the air duct is entered in the flue.
Preferably, the opening size of first opening is less than the opening size of the described second opening, so that from described the
The amount that one opening enters the air in the flue is less than the air entered from the described second opening in the flue
Amount.
Preferably, the first outlet port is offered at the top of the flue, first outlet port is used to arrange
Go out the waste gas formed after being burnt in the flue；
Also include Heat Room, the Heat Room is arranged at the top of the flue, and one end of the Heat Room is provided with
First exhaust gas entrance, first exhaust gas entrance is docked with first outlet port, so as to formed in the flue
Waste gas is entered in the Heat Room；
The first pipeline, outlet and the sky at the top of the partition wall of first pipeline are additionally provided with the Heat Room
Gas entrance is docked, and first pipeline is used to transmit air to the partition wall.
Preferably, in addition to furnace roof, the furnace roof is arranged at the top of the remote flue side of the Heat Room；
Second pipe and the 3rd pipeline, outlet and first pipeline of the second pipe are provided with the furnace roof
Entrance is docked, and the second pipe is used to transmit air to first pipeline；
The other end of the Heat Room is additionally provided with the second waste gas outlet, and the entrance of the 3rd pipeline gives up with described second
Gas outlet docking, the 3rd pipeline is used to discharge the waste gas in the Heat Room.
Preferably, in addition to wet coal drying box, the wet coal drying box is arranged at the remote Heat Room of the furnace roof
Side；It is used to hold the wet coal for treating destructive distillation in the wet coal drying box；
The second exhaust gas entrance is provided with the wet coal drying box, outlet and second waste gas of the 3rd pipeline enter
Mouth docking, the 3rd pipeline is additionally operable to transmit the waste gas in the Heat Room to the wet coal drying box；
The 3rd waste gas outlet is additionally provided with the wet coal drying box, for the waste gas in the wet coal drying box to be discharged
Into air.
Preferably, the gas entry includes two, and two gas entries are used to alternately lead into the flue
Enter coal gas.
Preferably, the partition wall include it is multiple, the flue include it is multiple, the partition wall and the flue are mutually handed over
For arrangement.
Preferably, sub- partition wall is additionally provided with each flue, the height of the sub- partition wall is less than the partition wall
Height, the top end of each flue partition wall wherein is connected.
The beneficial effects of the utility model：Coke oven provided by the utility model, by opening up air every coping
Entrance, and the first opening is opened up in the stage casing of partition wall, and the second opening is opened up in the hypomere of partition wall, air can be bypassed air through and entered
Mouthful and the second opening is directed into the hypomere of flue, and bypass air through air intake and the first opening is directed into flue
Section, so as to realize in flue, one section of coal gas point, air is divided to two sections, in flue bottom coal gas with being directed into flue
The air imperfect combustion of hypomere, the mixed gas of waste gas and coal gas after burning is burnt again in the stage casing of flue,
So that the temperature of waste gas can reduce by 50~100 DEG C, after EGT reduction, the yield of nitrogen oxides of exhaust gas in flue
Substantially reduce, and then greatly reduce the content of nitrogen oxides of exhaust gas, the coke oven is reached the stricter of country
Environmental requirement.
Brief description of the drawings
Fig. 1 is the structural representation of coke oven in the utility model embodiment 1；
Fig. 2 is the flow chart of the heating means of coke oven in the utility model embodiment 1.
Description of reference numerals therein：
1. partition wall；11. air intake；12. the first opening；13. the second opening；2. flue；21. the first waste gas is discharged
Mouthful；3. gas entry；4. Heat Room；41. the second waste gas outlet；5. the first pipeline；6. furnace roof；7. second pipe；8. the 3rd pipe
Road；9. wet coal drying box；91. the second exhaust gas entrance；92. the 3rd waste gas outlet；10. sub- partition wall.
Embodiment
To make those skilled in the art more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings and specifically
Embodiment is described in further detail to a kind of coke oven provided by the utility model.
Embodiment 1：
The present embodiment provides a kind of coke oven, as shown in figure 1, including by partition wall 1 every setting the flue 2 formed, flue 2
Bottom offers gas entry 3, and gas entry 3 is used to import coal gas into flue 2；The top of partition wall 1 offers air and entered
Mouthfuls 11, partition wall 1 is internally provided with air duct, and the stage casing of partition wall 1 offers the first opening 12, and the hypomere of partition wall 1 offers the
Two openings 13；First opening 12 and the second opening 13 respectively make air duct and the insertion of flue 2；Air intake 11 be used for
Air is imported in air duct；First opening 12 and the second opening 13 are respectively used to make the air in air duct to enter vertical fire
In road 2.
The coke oven opens up in the stage casing of partition wall 1 first opening 12 by opening up air intake 11 at the top of partition wall 1,
And the second opening 13 is opened up in the hypomere of partition wall 1, the opening of air intake 11 and second 13 can be bypassed air through and be directed into flue 2
Hypomere, and the stage casing that the opening of air intake 11 and first 12 is directed into flue 2 is bypassed air through, so as to realize vertical fire
In road 2, coal gas point one section, air is divided to two sections, incomplete in the bottom coal gas of flue 2 and the air that is directed into the hypomere of flue 2
Burning, the mixed gas of waste gas and coal gas after burning is burnt again in the stage casing of flue 2, so that in flue 2
The temperature of waste gas can reduce by 50~100 DEG C, and after EGT reduction, the yield of nitrogen oxides of exhaust gas is substantially reduced, and then
The content of nitrogen oxides of exhaust gas is greatly reduced, the coke oven is reached the stricter environmental protection standard of country.
In the present embodiment, the opening size of the first opening 12 is less than the opening size of the second opening 13, so as to be opened from first
Mouth 12 enters amount of the amounts less than the air entered from the second opening 13 in flue 2 of the air in flue 2.So set
Put, could realize by first opening 12 to flue 2 stage casing import 30%~50% air, by second opening 13 to
The hypomere of flue 2 imports 50%~70% air；So that hypomere energy of the mixed gas of coal gas and air in flue 2
Imperfect combustion, and make the unburnt coal gas of the hypomere of flue 2 rise to behind stage casing the air imported with stage casing again to enter
Row burning, and then flame temperature is reduced, eventually reduce the temperature of waste gas in flue 2.
In the present embodiment, the top of flue 2 offers the first outlet port 21, and the first outlet port 21 is used to arrange
Go out the waste gas formed after being burnt in flue 2.Coke oven also includes Heat Room 4, and Heat Room 4 is arranged at the top of flue 2, exchanges heat
One end of room 4 is provided with the first exhaust gas entrance, and the first exhaust gas entrance is docked with the first outlet port 21, so that in flue 2
The waste gas of formation is entered in Heat Room 4.The first pipeline 5 is additionally provided with Heat Room 4, outlet and the partition wall 1 of the first pipeline 5 are pushed up
The air intake 11 in portion is docked, and the first pipeline 5 is used to transmit air to partition wall 1.It is arranged such, is produced in flue 2
Waste gas is discharged from the first outlet port 21 at the top of it, and enters Heat Room 4 by the first exhaust gas entrance of Heat Room 4
In, heated with exchanging the air entered in hot cell 4 by the first pipeline 5 in partition wall 1, vertical fire is entered so as to improve
The temperature of air in road 2, and then heat consumption when air is with gas-fired in flue 2 is reduced, improve burning useless
The efficiency of utilization of gas, while also reducing the consumption of coal gas, improves the economic benefit of the coke oven.
In the present embodiment, coke oven also includes furnace roof 6, and furnace roof 6 is arranged at the top of the side of remote flue 2 of Heat Room 4.
The pipeline 8 of second pipe 7 and the 3rd is provided with furnace roof 6, the outlet of second pipe 7 is docked with the entrance of the first pipeline 5, the second pipe
Road 7 is used to transmit air to the first pipeline 5.The other end of Heat Room 4 is additionally provided with the secondth waste gas outlet 41, the 3rd pipe
The entrance in road 8 is docked with the second waste gas outlet 41, and the 3rd pipeline 8 is used to discharge the waste gas in Heat Room 4.Wherein, due to combustion
The EGT formed after burning is higher, can spread transmission all the way up along the bearing of trend of flue 2, so, furnace roof 6 is arranged on
The top of Heat Room 4, is conducive to waste gas by smoothly being discharged from furnace roof 6 after Heat Room 4；Relative to making to give up in the prior art
Be changed into the situation of down current behind the leap hole that gas passes through flue top, can be avoided to change waste gas flow direction and
Using extra external impetus element (such as aspiration pump), so as to avoid the consumption of extra power energy, the energy is saved.
In the present embodiment, coke oven also includes wet coal drying box 9, and wet coal drying box 9 is arranged at the remote Heat Room 4 of furnace roof 6
Side；It is used to hold the wet coal for treating destructive distillation in wet coal drying box 9.The second exhaust gas entrance 91 is provided with wet coal drying box 9, the
The outlet of three pipelines 8 is docked with the second exhaust gas entrance 91, and the 3rd pipeline 8 is additionally operable to transmit the waste gas in Heat Room 4 to wet coal
In drying box 9.The 3rd waste gas outlet 92 is additionally provided with wet coal drying box 9, for the waste gas in wet coal drying box 9 to be expelled to
In air.Wherein, because the EGT formed after burning is higher, biography can be spread all the way up along the bearing of trend of flue 2
It is defeated, so, wet coal drying box 9 is arranged on the side of the remote Heat Room 4 of furnace roof 6, is conducive to waste gas by smoothly entering after furnace roof 6
Enter in wet coal drying box 9, so as to carry out preheating and drying to the wet coal in wet coal drying box 9, the moisture gone in dehumidifying coal, from
And the efficiency of utilization of burning waste gas is not only increased, and the heat consumption that coking processing is carried out to wet coal is reduced, so that
Improve the economic benefit of the coke oven.
It is preferred that, in the present embodiment, gas entry 3 includes two, and two gas entries 3 are used for alternately into flue 2
Import coal gas.When one of gas entry 3 imports coal gas into flue 2, another gas entry 3 is not used in importing coal
Gas, and be used to communicate with outside atmosphere, the air in external environment condition can enter flue 2 by the gas entry 3
Bottom.It is arranged such, when the gas entry 3 is imported coal gas into flue 2, passes through two gas entries 3 and alternately import coals
Gas, so that any one gas entry 3 is blocked all without the coal gas residue for being left or being deposited on its oral area, so that it is guaranteed that often
Individual gas entry 3 normally can import coal gas into flue 2.
In the present embodiment, partition wall 1 include it is multiple, flue 2 include it is multiple, partition wall 1 and flue 2 alternate arrangement.
Multiple partition walls 1 are every setting to form multiple flues 2.
Wherein, sub- partition wall 10 is additionally provided with each flue 2, the height of sub- partition wall 10 is less than the height of partition wall 1, often
The top end of individual flue 2 sub- partition wall 10 wherein is connected.It is arranged such, enables the air in a partition wall 1 while entering
Enter to be located in two flues 2 of its opposite sides, so as to improve the efficiency of heating surface of the coke oven.
Based on the said structure of the coke oven provided in embodiment 1, the present embodiment also provides a kind of heating side of the coke oven
Method, as shown in Fig. 2 including：
Step S10：Coal gas is imported in flue bottom, the top of the air flue in flue partition imports air.
Wherein, in the coal gas of flue bottom importing 100%.Flue is formed every setting by partition wall, every coping with
The top of flue is corresponding.It is directed into wherein from the bottom of flue compared to air of the prior art, in the present embodiment
Air imports the mixing two stage combustion for being easy to implement coal gas and air in follow-up flue from the top of the air flue in partition wall, so that
The temperature of waste gas in flue can be reduced well, reduce the content of nitrogen oxides of exhaust gas.
Step S11：30%~50% air is imported to the stage casing of flue by the air outlet slit correspondence in partition wall stage casing；
50%~70% air is imported to the hypomere of flue by the air outlet slit correspondence of partition wall hypomere.
In the step, the stage casing of the stage casing correspondence flue of partition wall, the hypomere of the hypomere correspondence flue of partition wall.Due to logical
The air that partition wall hypomere imports 50%~70% to flue hypomere is crossed, so in the bottom of flue, the combustion of coal gas and air
Burn not fully；When the mixed gas of waste gas and coal gas after burning reaches the stage casing of flue, it is directed into partition wall stage casing vertical
30%~50% air in quirk burns again, so that the EGT in whole flue being capable of relatively existing coke oven
The temperature of middle waste gas is substantially reduced, and then substantially reduces the yield of nitrogen oxides of exhaust gas, that is, greatly reduces and environment is made
Into the content of the nitrogen oxides of pollution.
Step S12：The waste gas and gas mixture that coal gas is formed after the hypomere burning of flue are in the stage casing of flue
Burn again, so that the temperature of waste gas reduces by 50~100 DEG C in flue.
Wherein, in the unburnt coal gas of hypomere of flue and the mixed gas of waste gas in the stage casing of flue and sky
Gas burns again, can extend the length of flue flame, reduces flame temperature so that in flue waste gas temperature control
System is at 1600 DEG C or so, the EGT compared to 1650 DEG C or so in the prior art, and the temperature of waste gas is significantly in the present embodiment
Reduction, so that the yield of nitrogen oxides of exhaust gas is substantially reduced, and then can greatly reduce what nitrogen oxides was caused to environment
Pollution.
The heating means of the coke oven, by importing air every coping in flue, and make air from flue
Stage casing and hypomere are directed into wherein, can so be made in flue, one section of coal gas point, and air is divided to two sections, in flue bottom coal gas
Air imperfect combustion with being directed into flue hypomere, the mixed gas of waste gas and coal gas after burning is in the stage casing of flue
Burnt again, this makes the temperature of coke oven combustion waste gas drop to 1600 DEG C or so from existing 1650 DEG C, so that vertical fire
The temperature of waste gas can reduce by 50~100 DEG C in road, and after EGT reduction, the yield of nitrogen oxides of exhaust gas is substantially reduced,
And then the content of nitrogen oxides of exhaust gas is greatly reduced, the coke oven is reached the stricter environmental requirement of country.
In the present embodiment, the heating means of coke oven also include：Step S13：The waste gas that burning is formed in flue is from vertical fire
The top discharge in road；The waste gas discharged from the top of flue enters Heat Room, to be directed into heat exchanging room every coping
Air preheated.
In the step, burning waste gas is expelled directly out at the top of flue and enters Heat Room, and can be led in heat exchanging room
The air entered to flue is preheated, and improves air themperature, so as to reduce heat when air is with gas-fired in flue
Amount consumption, improves the efficiency of utilization of burning waste gas, while also reducing gas consumption, improves the economic benefit of the coke oven.
In the present embodiment, the heating means of coke oven also include：Step S14：The waste gas discharged out of Heat Room enters wet coal
Drying box, to carry out preheating and drying to the wet coal in wet coal drying box.The waste gas discharged from wet coal drying box is discharged into air.
In the step, burning waste gas can carry out preheating and drying to the wet coal in wet coal drying box, the water gone in dehumidifying coal
Point, so as to not only increase the efficiency of utilization of burning waste gas, and reduce the heat consumption that coking processing is carried out to wet coal,
So as to improve the economic benefit of the coke oven.
The heating means of above-mentioned coke oven, by importing air every coping in flue, and make air from flue
Stage casing and hypomere be directed into wherein, can so make in flue, coal gas point one section, air is divided to two sections, in flue bottom coal
Gas and the air imperfect combustion for being directed into flue hypomere, the mixed gas of waste gas and coal gas after burning is in flue
Duan Zaici is burnt, so that the temperature of waste gas can reduce by 50~100 DEG C, after EGT reduction, waste gas in flue
The yield of middle nitrogen oxides is substantially reduced, and then greatly reduces the content of nitrogen oxides of exhaust gas, the coke oven is reached
The stricter environmental requirement of country.
The beneficial effect of embodiment 1：Coke oven provided in embodiment 1, by opening up air intake every coping,
And the first opening is opened up in the stage casing of partition wall, and open up the second opening in the hypomere of partition wall, can bypass air through air intake and
Second opening is directed into the hypomere of flue, and bypasses air through air intake and the first opening is directed into the stage casing of flue,
So as to realize in flue, one section of coal gas point, air is divided to two sections, in flue bottom coal gas with being directed into flue hypomere
Air imperfect combustion, the mixed gas of waste gas and coal gas after burning burnt again in the stage casing of flue so that
Enabling the temperature of waste gas in flue reduces by 50~100 DEG C, and after EGT reduction, the yield of nitrogen oxides of exhaust gas is significantly
Reduction, and then the content of nitrogen oxides of exhaust gas is greatly reduced, the coke oven is reached the stricter environmental protection of country
It is required that.
It is understood that embodiment of above be merely to illustrate that principle of the present utility model and use it is exemplary
Embodiment, but the utility model is not limited thereto.For those skilled in the art, this is not being departed from
In the case of the spirit and essence of utility model, various changes and modifications can be made therein, and these variations and modifications are also considered as this reality
With new protection domain.
Claims (8)
1. a kind of coke oven, including by partition wall every setting the flue formed, the bottom of the flue offers gas entry, described
Gas entry is used to import coal gas into the flue；Characterized in that, described offer air intake every coping, institute
State partition wall and be internally provided with air duct, the stage casing of the partition wall offers the first opening, and the hypomere of the partition wall offers
Two openings；First opening and second opening respectively make the air duct and the flue insertion；The sky
Gas entrance is used to import air into the air duct；First opening and the described second opening are respectively used to make the sky
Air in gas passage is entered in the flue.
2. coke oven according to claim 1, it is characterised in that the opening size of first opening is opened less than described second
The opening size of mouth, so that the amount of the air entered from the described first opening in the flue is less than from the described second opening
The amount of the air entered in the flue.
3. coke oven according to claim 1, it is characterised in that the discharge of the first waste gas is offered at the top of the flue
Mouthful, first outlet port is used to discharge the waste gas formed after burning in the flue；
Also include Heat Room, the Heat Room is arranged at the top of the flue, and one end of the Heat Room is provided with first
Exhaust gas entrance, first exhaust gas entrance is docked with first outlet port, so that the waste gas formed in the flue
Enter in the Heat Room；
The first pipeline is additionally provided with the Heat Room, the outlet of first pipeline enters with the air at the top of the partition wall
Mouth docking, first pipeline is used to transmit air to the partition wall.
4. coke oven according to claim 3, it is characterised in that also including furnace roof, the furnace roof is arranged at the Heat Room
The remote flue side top；
Second pipe and the 3rd pipeline, the outlet of the second pipe and the entrance of first pipeline are provided with the furnace roof
Docking, the second pipe is used to transmit air to first pipeline；
The other end of the Heat Room is additionally provided with the second waste gas outlet, and entrance and second waste gas of the 3rd pipeline go out
Mouth docking, the 3rd pipeline is used to discharge the waste gas in the Heat Room.
5. coke oven according to claim 4, it is characterised in that also including wet coal drying box, the wet coal drying box is set
In the side of the remote Heat Room of the furnace roof；It is used to hold the wet coal for treating destructive distillation in the wet coal drying box；
The second exhaust gas entrance, outlet and second exhaust gas entrance pair of the 3rd pipeline are provided with the wet coal drying box
Connect, the 3rd pipeline is additionally operable to transmit the waste gas in the Heat Room to the wet coal drying box；
The 3rd waste gas outlet is additionally provided with the wet coal drying box, for the waste gas in the wet coal drying box to be expelled to greatly
In gas.
6. coke oven according to claim 1, it is characterised in that the gas entry includes two, and two coal gas enter
Mouth is used to alternately import coal gas into the flue.
7. coke oven according to claim 1, it is characterised in that the partition wall include it is multiple, the flue include it is multiple,
The partition wall and the flue alternate arrangement.
8. coke oven according to claim 7, it is characterised in that sub- partition wall, institute are additionally provided with each flue
The height for stating sub- partition wall is less than the height of the partition wall, and the top end of each flue partition wall wherein is connected
It is logical.
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|---|---|---|---|
| CN201720123605.9U CN206467197U (en) | 2017-02-10 | 2017-02-10 | A kind of coke oven |
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| CN201720123605.9U CN206467197U (en) | 2017-02-10 | 2017-02-10 | A kind of coke oven |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106635068A (en) * | 2017-02-10 | 2017-05-10 | 北京华泰焦化工程技术有限公司 | Coke oven and heating method thereof |
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2017
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106635068A (en) * | 2017-02-10 | 2017-05-10 | 北京华泰焦化工程技术有限公司 | Coke oven and heating method thereof |
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Address after: Section thirteen economic and Technological Development Zone of Beijing City 31 street 100176 No. two School District No. 15 Building 5 layer 501 Patentee after: HUATAI YONGCHUANG (BEIJING) TECHNOLOGY Co.,Ltd. Address before: 101318, building 14, Rong Hui Garden, B District, Shunyi District Airport Industrial Park, Beijing Patentee before: BEIJING HUATAI COKING ENGINEERING CONSULTING Corp. |