CN204824712U - Built -in flue heat recovery coke oven system - Google Patents
Built -in flue heat recovery coke oven system Download PDFInfo
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- CN204824712U CN204824712U CN201520490047.0U CN201520490047U CN204824712U CN 204824712 U CN204824712 U CN 204824712U CN 201520490047 U CN201520490047 U CN 201520490047U CN 204824712 U CN204824712 U CN 204824712U
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- combustion chamber
- coke oven
- flue
- heat recovery
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Abstract
The utility model provides a built -in flue that built -in flue heat recovery coke oven system includes heat recovery coke oven furnace body and at coke oven internal layout, wherein heat recovery coke oven furnace body includes alternate several hole retort house and lower part combustion chamber, built -in flue is arranged in the combustion chamber of lower part, the lower part combustion chamber includes main wall and decline flame path founding the wall summation with several ways between main wall and the decline flame path and saying and seal the several U toroidal combustion chamber that the wall is cut apart, every U toroidal combustion chamber is provided with and has seted up combustion chamber outlet on one of a plurality of walls and these a plurality of walls, the combustion chamber outlet intercommunication U toroidal combustion chamber and built -in flue, outside power boiler or chimney are connected to built -in flue. The utility model discloses with inside placing the heat recovery coke oven in the flue in, the about 15 -16 of coke oven construction cost reduction has reduced hot loss of energy, has improved the electricity generation productivity, has eliminated the production instability that external flue running maintenance brought.
Description
Technical field
The utility model relates to a kind of built-in chimney flue heat recovery coke oven system.
Background technology
In existing heat recovery coke oven technology, all adopt the upper flue or the lower flue that are located away from coke oven main body both at home and abroad, by bridge tube, coke oven and flue are connected, then high-temperature flue gas are transported to power station.Because the construction cost of flue own accounts for the 1/5-1/6 of coke oven cost, and flue crossbearer is in coke oven top, and the weight of hundreds of upper kiloton is pressed in coke oven top, has had higher requirement, construction cost is increased to coke oven base and coke oven bulk strength.
The current heat recovery coke oven technology for the production of coke and technique attain maturation, and because its environment protecting is good, cost of electricity-generating is low, pollution-free, in recent years construction in enormous quantities and operation at home and abroad.In recent years newly-built coke oven, single seat output can reach about 500,000 tons/year, the highest even can more than 2,000,000 tons/year.
But above-mentioned coke oven technology has many defects, mainly the problem of flue lining material and brick-building art, and in use inner lining material often comes off, have a strong impact on the normal production of coke oven, improve construction cost.The domestic and international heat recovery coke oven of existing major part, flue all carried out transformation and renovation, and the improved flue life-span leaves a question open.
Therefore, be necessary for shortcoming of the prior art, design a kind of built-in chimney flue heat recovery coke oven system without above-mentioned coke oven problem and technique.
Utility model content
Consider at least one the problems referred to above and complete the utility model, and an object of the present utility model is to provide a kind of built-in chimney flue heat recovery coke oven system.Wherein, this built-in chimney flue heat recovery coke oven system, is characterized in that comprising: heat recovery coke oven body of heater and the built-in chimney flue arranged in pressures inside; Wherein said heat recovery coke oven body of heater comprises alternate destructive distillation room, several hole and lower combustion chamber, and described built-in chimney flue is arranged in lower combustion chamber;
Described lower combustion chamber comprises main wall and decline quirk, with the several U-shaped combustion chamber that several wall and several envelope wall are divided between described main wall and decline quirk, each U-shaped combustion chamber is provided with multiple envelope wall and one of the plurality of envelope wall offers combustor exit, described combustor exit is communicated with described U-shaped combustion chamber and built-in chimney flue, and described built-in chimney flue connects outside electricity generation boiler or chimney.
According to the utility model on the other hand, described built-in chimney flue connects outside electricity generation boiler or chimney by the steel flue gas duct of inner lining refractory.
According to the utility model on the other hand, described main wall, wall and decline quirk are arranged circular hole to form a described built-in chimney flue, described built-in chimney flue extends in the horizontal direction, and described built-in chimney flue is arranged on side or the central position of lower combustion chamber.
According to the utility model on the other hand, described main wall, wall and decline quirk are arranged circular hole to form two described built-in chimney flues, described two built-in chimney flues extend in the horizontal direction, and described two built-in chimney flues are separately positioned on two side positions of lower combustion chamber.
According to the utility model on the other hand, described decline quirk is multiple, with the several U-shaped combustion chamber that several wall and several envelope wall are divided between multiple decline quirk.
Described combustor exit place arranges and rotates butterfly valve or adjusting brick.
According to the utility model on the other hand, described several U-shaped combustion chamber comprises two group U-shaped combustion chambers symmetrically arranged relative to the medullary ray of lower combustion chamber.
According to the utility model on the other hand, provide and a kind ofly utilize aforesaid built-in chimney flue heat recovery coke oven system to carry out the technique of coke oven production, it is characterized in that:
Coke making and coal blending adds described destructive distillation room through making firm by ramming, carrying;
The raw gas that process of coking is produced, in coking chamber, a burning part, heats the briquette in coking chamber from top to bottom mainly through thermal radiation during this;
In coking chamber, do not have used up raw gas, through the decline quirk of furnace wall, enter the combustion chamber of furnace bottom, burn with secondary air inlet air mixed, the heat after burning, by thermal conduction, at the bottom of coking chamber, heats the briquette in coking chamber from bottom to top;
The high-temperature gas burnt in combustion chamber, through combustor exit, enters built-in chimney flue;
After the high-temperature flue gas of each hole coke oven is all pooled to built-in chimney flue, draws at the main wall place of coke oven termination, and by the steel flue gas duct of inner lining refractory, high-temperature flue gas is delivered to electricity generation boiler or chimney;
Coking coal generates high temperature coke in thermal process reactor;
Coke pushes quenching car by coke pusher, under coke is transported to coke quenching tower, with water coolant, coke is carried out cooling process, obtains finished coke.
Compared with prior art, the beneficial effects of the utility model are: built in flue is inner in heat recovery coke oven, and coke oven construction cost reduces about 1/5-1/6; Decrease the hot loss of energy that external flue brings, improve generated energy; Decrease external flue lining to come off on the impact of producing, stabilize coke production, improve coke output and quality; By the rising quirk abatement on the coke oven main wall of original external flue, main wall brick reduces, and construction cost reduces, and more mainly improves the intensity of main wall, decreases the main wall crackle that in coke oven production process, quirk position produces to greatest extent, improves the coke oven life-span.
Accompanying drawing explanation
Fig. 1 is the structural representation of the built-in chimney flue heat recovery coke oven system according to a kind of preferred embodiment of the utility model, and this built-in chimney flue is twin flue.
Fig. 2 is the partial side elevation view of the built-in chimney flue heat recovery coke oven system in Fig. 1.
Fig. 3 is a kind of chamber structure schematic diagram of the built-in chimney flue heat recovery coke oven system in Fig. 1.
Fig. 4 is the another kind of chamber structure schematic diagram of the built-in chimney flue heat recovery coke oven system in Fig. 1.
Fig. 5 is the structural representation of the built-in chimney flue heat recovery coke oven system according to the another kind of preferred embodiment of the utility model, and this built-in chimney flue is single flue.
Fig. 6 is the partial side elevation view of the built-in chimney flue heat recovery coke oven system in Fig. 5.
Fig. 7 is a kind of chamber structure schematic diagram of the built-in chimney flue heat recovery coke oven system in Fig. 5.
Fig. 8 is the another kind of chamber structure schematic diagram of the built-in chimney flue heat recovery coke oven system in Fig. 5.
In figure: at the bottom of 1 (limit) main wall, 2 coke oven vaults, 3 main walls, 4 coking chambers, 5 coking chambers, 6 decline quirks, 7 ventilation ducts, 8 secondary air inlets, 9 combustion chambers, 10 combustor exits, 11 envelope walls, 12 bottom bricks, 13 flues, 14 furnace retaining ironwares, 15 adjusting bricks, 16 combustion chamber walls, 17 built-in chimney flues, 31 chimneys
Embodiment
Below in conjunction with accompanying drawing; by preferred embodiment, preferred forms of the present utility model is described; here embodiment is to explain the utility model; and should not be construed as restriction of the present utility model; when not departing from spirit of the present utility model and essential scope; can make various changes and modifications, these all should be included within protection domain of the present utility model.
Embodiment 1
See Fig. 1-8, the utility model provides a kind of built-in chimney flue heat recovery coke oven system.Such as, this built-in chimney flue heat recovery coke oven system can comprise: heat recovery coke oven body of heater and the built-in chimney flue 17 arranged in pressures inside; Wherein said heat recovery coke oven body of heater comprises alternate destructive distillation room, several hole and lower combustion chamber 9, and described built-in chimney flue 17 is arranged in lower combustion chamber 9;
Described lower combustion chamber 9 comprises main wall 3 and decline quirk 6, with the several U-shaped combustion chamber 9 that several wall 16 and several envelope wall 11 are divided between described main wall 3 and decline quirk 6, each U-shaped combustion chamber 9 is provided with multiple envelope wall 11 and one of the plurality of envelope wall 11 offers combustor exit 10, described combustor exit 10 is communicated with described U-shaped combustion chamber 9 and built-in chimney flue 17, and described built-in chimney flue 17 connects outside electricity generation boiler or chimney 31.
Be understandable that, as shown in Figure 3, in the U-shaped combustion chamber 9 in the utility model, the path of gas is U-shaped path equally.The utility model is inner in heat recovery coke oven by built in flue, and coke oven construction cost reduces about 1/5-1/6; Decrease the hot loss of energy that external flue brings, improve generated energy; Decrease external flue lining to come off on the impact of producing, improve coke-oven plant's production stability; Decline quirk+rising flame path structure that external flue causes coke oven main wall to have is simplified, become and only have decline quirk, main wall brick reduces, and construction cost reduces, mainly improve the intensity of main wall, decrease the main wall crackle that in coke oven high temperature production process, quirk position produces to greatest extent.
Preferably, described built-in chimney flue 17 connects outside electricity generation boiler or chimney 31 by the steel flue gas duct 13 of inner lining refractory.
Preferably, see Fig. 3,4,7,8, described main wall 3, wall 16 and decline quirk 6 are arranged circular hole to form a described built-in chimney flue 17, described built-in chimney flue 17 extends in the horizontal direction, and described built-in chimney flue 17 is arranged on side or the central position of lower combustion chamber 9.
Preferably, see Fig. 3,4, described main wall 3, wall 16 and decline quirk 6 are arranged circular hole to form two described built-in chimney flues 17, described two built-in chimney flues 17 extend in the horizontal direction, and described two built-in chimney flues 17 are separately positioned on two side positions of lower combustion chamber 9.
Preferably, described decline quirk 6 is multiple, with the several U-shaped combustion chamber 9 that several wall 16 and several envelope wall 11 are divided between multiple decline quirk 6.
Preferably, described combustor exit 10 place arranges and rotates butterfly valve or adjusting brick 15.
Preferably, see Fig. 3,7, described several U-shaped combustion chamber 9 comprises two group U-shaped combustion chambers 9 symmetrically arranged relative to the medullary ray of lower combustion chamber 9.
Preferably, provide and a kind ofly utilize aforesaid built-in chimney flue heat recovery coke oven system to carry out the technique of coke oven production, comprise the following steps:
Coke making and coal blending adds described destructive distillation room through making firm by ramming, carrying;
The raw gas that process of coking is produced, in coking chamber 5, a burning part, heats the briquette in coking chamber 5 from top to bottom mainly through thermal radiation during this;
In coking chamber 5, there is no used up raw gas, through the decline quirk 6 of furnace wall, enter the combustion chamber 9 of furnace bottom, burn with secondary air inlet 8 air mixed, heat after burning, by thermal conduction, at the bottom of coking chamber, heats the briquette in coking chamber 5 from bottom to top;
The high-temperature gas burnt in combustion chamber 9, through combustor exit 10, enters built-in chimney flue 17;
After the high-temperature flue gas of each hole coke oven is all pooled to built-in chimney flue 17, draws at main wall 3 place of coke oven termination, and by the steel flue gas duct 13 of inner lining refractory, high-temperature flue gas is delivered to electricity generation boiler or chimney 31;
Coking coal generates high temperature coke in thermal process reactor;
Coke pushes quenching car by coke pusher, under coke is transported to coke quenching tower, with water coolant, coke is carried out cooling process, obtains finished coke.
Preferably, additionally provide a kind of built-in chimney flue heat recovery coke oven system, its flue that can comprise heat recovery coke oven body of heater and arrange in pressures inside; Wherein said heat recovery coke oven body of heater comprises alternate destructive distillation room, several hole and lower combustion chamber, and described flue is arranged in mechanical coke two ends or the middle part in lower combustion region.
Preferably, in the gas-fired region of bottom, this coke oven destructive distillation room, build several wall with refractory brick by laying bricks or stones in this region and combustion zone be divided into several U-shaped combustion chamber, make coal gas and the abundant mixed firing of air even.At two ends or the middle part refractory material laying envelope wall 11 of combustion chamber, isolate built-in twin flue or built-in single flue; Envelope wall 11 offers combustor exit 10, combustion chamber and built-in chimney flue UNICOM.Coke oven main wall 3 and combustion chamber wall adopt one or several circular hole, are ganged up by the flue that each combustion chamber is separated, and form one group of coke oven built-in chimney flue; Each hole coke oven combustion gas, after the built-in chimney flue of described UNICOM collects, is drawn at main wall 3 place, limit, coke oven termination, with the steel flue gas duct of inner lining refractory, high-temperature flue gas is delivered to electricity generation boiler or chimney 31.
Be understandable that, built-in chimney flue heat recovery coke oven system of the present utility model adopts flue to build by laying bricks or stones in coking furnace shaft, and coke oven profile and coke oven base do not need change, and coke oven guarding iron does not need to change.Flue does not need separately to build separately, also can improve coke oven body heating uniformity.
Preferably, described system arranges decline quirk 6 in coke oven main wall 3, does not arrange rising quirk.
Preferably, described system arranges flue at combustion chamber.
Preferably, the combustion chamber of described system builds several wall by laying bricks or stones, combustion chamber is divided into several U-shaped small combustion chamber.
Preferably, with laying fireproof bricks envelope wall 11, each hole coke oven bottom is divided into three parts: coke side flue-combustion chamber-pusher side flue.
Preferably, with laying fireproof bricks envelope wall 11, each hole coke oven bottom is divided into two parts: single flue-combustion chamber.
Preferably, with laying fireproof bricks envelope wall 11, three parts are divided into each hole coke oven bottom: combustion chamber-intermediate flue-combustion chamber.
Preferably, described system laying fireproof bricks envelope wall 11, is divided into three parts each hole coke oven bottom: combustion chamber-intermediate flue-combustion chamber system also comprises coke oven main wall 3 and combustion chamber wall adopts one or several circular hole, is ganged up by the flue of each hole coke oven.
Preferably, described system also comprises coke oven main wall 3 and combustion chamber wall and adopts several hollow brick to be built into the grid-like or grid-like ventilating pit of square aperture of round aperture, is ganged up by the flue of each hole coke oven.
Preferably, combustor exit 10 is offered sealing on wall 11 between described built-in chimney flue and combustion chamber.
Preferably, combustor exit 10 place between built-in chimney flue and combustion chamber arranges rotation butterfly valve, carrys out by machinery or the artificial flap that rotates the size that control combustion room exports 10.
Preferably, in combustor exit 10 place between built-in chimney flue and combustion chamber place adjusting brick, by machinery or manually move horizontally adjusting brick come control combustion room outlet 10 size.
Preferably, the gas of each hole coke oven combustion, after combustor exit 10 imports flue, is drawn at limit main wall 3 place of each group coke oven termination.
Preferably, the gas that each hole coke oven combustion collects, after limit main wall 3 place of coke oven termination draws, can combine and be transported to chimney 31 or electricity generation boiler by two groups of coke oven gas.
Preferably, see Fig. 1, additionally provide a kind of built-in chimney flue heat recovery coke oven system, comprising: at the bottom of limit main wall 1, coke oven vault 2, main wall 3, coking chamber 4, coking chamber 5, decline quirk 6, ventilation duct 7, secondary air inlet 8, combustion chamber 9, combustor exit 10, envelope wall 11, bottom brick 12, flue 13, furnace retaining ironware 14, adjusting brick 15, combustion chamber wall 16, built-in chimney flue 17 and chimney 31 etc.
Preferably, described system by the bottom of the main wall 3 of laying fireproof bricks, vault 2, coking chamber 4, the entity structure such as combustion chamber wall 10, envelope wall 11, be encircled into several functional space: coking chamber 5, decline quirk 6, combustion chamber 9, ventilation duct 7, secondary air inlet 8, built-in chimney flue 17 etc., constitute the various functions space required by coking production technique.
Preferably, built-in chimney flue heat recovery coke oven system combustion chamber is by the functional configuration such as limit main wall 1, main wall 3, combustor exit 10, envelope wall 11, combustion chamber wall 16, built-in chimney flue 17, define flue gas and the abundant mixing space of air, complete high-temperature flue gas technological cycle path.
Preferably, from the gas smoke mixture of described built-in chimney flue heat recovery coke oven coking chamber 5, coke oven combustion chamber 9 is introduced into through decline quirk 6, built-in chimney flue 13 is entered by combustor exit 10, then drawn body of heater at main wall 1 place, coke oven limit, the high-temperature flue gas after described burning is admitted to chimney or electricity generation boiler through the steel flue gas duct 13 of inner lining refractory.
Preferably, for making coal gas and the abundant mixed firing of air of introducing combustion chamber 9 from decline quirk 6, the intensity also in order to strengthen at the bottom of coking chamber 4, combustion chamber 9 builds several wall 16 by laying bricks or stones, and combustion chamber 9 is divided into several U-shaped small combustion chamber.
Preferably, at combustion chamber pusher side, coke side or middle part, with refractory material laying envelope wall 11, be partitioned into combustion chamber 9 and built-in chimney flue 17.
Preferably, envelope wall 11 offers combustor exit 10, by combustion chamber and flue UNICOM.
Preferably, the combustor exit 10 on envelope wall 11 places butterfly valve, regulates outlet size by rotary spool.
Preferably, the combustor exit 10 on envelope wall 11 places adjusting brick 15, is changed the size of combustor exit 10 by mobile adjusting brick 15.
Preferably, the gas of each hole coke oven combustion imports after built-in chimney flue 17 through combustor exit 10, draws at limit main wall 1 place of each group coke oven termination.
Preferably, the gas that each hole coke oven combustion collects, after limit main wall 1 place of coke oven termination draws, can combine and be delivered to chimney or electricity generation boiler place by two groups of coke oven gas.
In sum, the beneficial effects of the utility model are:
1) built in flue is inner in heat recovery coke oven, coke oven construction cost reduces about 1/5-1/6;
2) decrease the hot loss of energy that external flue brings, improve generated energy;
3) decrease external flue lining to come off on the impact of producing, stabilize production, improve coke output and quality;
4) by the rising quirk abatement on the coke oven main wall of original external flue, main wall brick reduces, and body of heater construction cost reduces; More mainly improve the intensity of main wall, decrease the main wall crackle that coke oven fire path position produces to greatest extent, improve the coke oven life-span.
The utility model is not limited to above-mentioned specific embodiment.Be understandable that, when not departing from spirit of the present utility model and essential scope, can make various changes and modifications, these all should be included within protection domain of the present utility model.
Claims (7)
1. a built-in chimney flue heat recovery coke oven system, is characterized in that comprising: heat recovery coke oven body of heater and the built-in chimney flue arranged in pressures inside; Wherein said heat recovery coke oven body of heater comprises alternate destructive distillation room, several hole and lower combustion chamber, and described built-in chimney flue is arranged in lower combustion chamber;
Described lower combustion chamber comprises main wall and decline quirk, with the several U-shaped combustion chamber that several wall and several envelope wall are divided between described main wall and decline quirk, each U-shaped combustion chamber is provided with multiple envelope wall and one of the plurality of envelope wall offers combustor exit, described combustor exit is communicated with described U-shaped combustion chamber and built-in chimney flue, and described built-in chimney flue connects outside electricity generation boiler or chimney.
2. built-in chimney flue heat recovery coke oven system according to claim 1, is characterized in that described built-in chimney flue connects outside electricity generation boiler or chimney by the steel flue gas duct of inner lining refractory.
3. built-in chimney flue heat recovery coke oven system according to claim 2, it is characterized in that described main wall, wall and decline quirk being arranged circular hole to form a described built-in chimney flue, described built-in chimney flue extends in the horizontal direction, and described built-in chimney flue is arranged on side or the central position of lower combustion chamber.
4. built-in chimney flue heat recovery coke oven system according to claim 2, it is characterized in that described main wall, wall and decline quirk being arranged circular hole to form two described built-in chimney flues, described two built-in chimney flues extend in the horizontal direction, and described two built-in chimney flues are separately positioned on two side positions of lower combustion chamber.
5. the built-in chimney flue heat recovery coke oven system according to any one of claim 1-4, is characterized in that described decline quirk is multiple, with the several U-shaped combustion chamber that several wall and several envelope wall are divided between multiple decline quirk.
6. built-in chimney flue heat recovery coke oven system according to claim 5, is characterized in that described combustor exit place is arranged and rotates butterfly valve or adjusting brick.
7. the built-in chimney flue heat recovery coke oven system according to any one of claim 1-4, is characterized in that described several U-shaped combustion chamber comprises two group U-shaped combustion chambers symmetrically arranged relative to the medullary ray of lower combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520490047.0U CN204824712U (en) | 2015-07-08 | 2015-07-08 | Built -in flue heat recovery coke oven system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520490047.0U CN204824712U (en) | 2015-07-08 | 2015-07-08 | Built -in flue heat recovery coke oven system |
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| CN204824712U true CN204824712U (en) | 2015-12-02 |
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| CN201520490047.0U Withdrawn - After Issue CN204824712U (en) | 2015-07-08 | 2015-07-08 | Built -in flue heat recovery coke oven system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104946271A (en) * | 2015-07-08 | 2015-09-30 | 雷辰 | Heat recovery coke oven system internally provided with flue and technology thereof |
-
2015
- 2015-07-08 CN CN201520490047.0U patent/CN204824712U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104946271A (en) * | 2015-07-08 | 2015-09-30 | 雷辰 | Heat recovery coke oven system internally provided with flue and technology thereof |
| CN104946271B (en) * | 2015-07-08 | 2017-08-01 | 雷辰 | Built-in chimney flue heat recovery coke oven system and its technique |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20170801 |