CN1255528A - Integrative cokery and its coking process - Google Patents
Integrative cokery and its coking process Download PDFInfo
- Publication number
- CN1255528A CN1255528A CN 99125326 CN99125326A CN1255528A CN 1255528 A CN1255528 A CN 1255528A CN 99125326 CN99125326 CN 99125326 CN 99125326 A CN99125326 A CN 99125326A CN 1255528 A CN1255528 A CN 1255528A
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- coking
- flue
- coal
- hole
- coke oven
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- 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
- C10B15/00—Other coke ovens
- C10B15/02—Other coke ovens with floor heating
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Coke Industry (AREA)
Abstract
An integrative cokery is composed of parallel two rows of cokery cluster, one chimney, thrust walls at both ends of cokery cluster, coal feeding and coke discharging port, primary flue at both sides of chimney, sub-flue in each carbonizing chamber, regulating plate on sub-flue,and heating pit for baking primary flue and increasing suction. Its coking method includes loading coal, igniting by opening the ignition plate, dry distillation and extinguishing with water steam. Its advantages are resonable struture and high quality of coke.
Description
The present invention relates to a kind of integrative cokery and coking process thereof.
Existing non-cokery ubiquity the defective of unreasonable structure, and the coking combustion air adds from the side of coke oven, air direct and coking coal and coke Long contact time generation oxidation.All because of existing above-mentioned defective, therefore make coking coal can not get sufficient destructive distillation as the Seventh Five-Year Plan type stove, Pingxiang stove, JKH-89 type stove etc., Jiao is many, the burnt rate of product is low thereby change, and coking is inhomogeneous.Coke fugitive constituent fluctuation range is big, and Jiao that overdoes is many, and green coke is many, causes the reduction of coke quality and productive rate.
The purpose of this invention is to provide a kind of rational in infrastructure, coke quality is high and produce high integrative cokery of burnt rate and coking process thereof.
Task of the present invention is achieved in that this integrative cokery, it comprises two rows conjuncted coke oven arranged side by side, a chimney, be provided with the thrust wall at the two ends of coke oven, front end at coke oven is provided with into the coal coke outlet, on the back headwall of coke oven, be provided with the quenching mouth, the bottom fire channel in road at the bottom of the bottom of coke oven is provided with double as quenching backwater, the bottom front of going into the coal coke outlet at coke oven is provided with backwater by-path and backwater main stem, one end of backwater by-path is communicated with bottom fire channel, the other end is communicated with the backwater main stem, end at the close bottom fire channel of backwater by-path is provided with the backwater flashboard, both sides at chimney are provided with flue collector, each coking chamber is provided with the branch flue, flue collector is communicated with dividing flue, on minute flue, be provided with the adjusting flashboard, wherein it also is included in the two ends of flue collector and the middle part is provided with the baking flue collector and strengthens the hole of heating that suction is used, the perpendicular quirk that in the coking chamber side walls, is provided with, perpendicular quirk is communicated with the bottom fire channel of coking chamber bottom, be provided with the downdraf hole in the junction of coking chamber furnace roof and side walls, the middle and upper part of perpendicular quirk is communicated with the downdraf hole, top at perpendicular quirk is provided with the secondary air gate valve, be provided with the primary air hole at coking chamber furnace roof middle part, on the primary air hole, be provided with the adjusting gate valve, both sides at furnace roof are provided with the airport of igniting, on the airport of igniting, be provided with gate valve, centre at two adjacent coking chambers is provided with thermal insulation layer, is provided with vent at thermal insulation layer and downdraf hole with eminence, is provided with the flashboard of igniting in the vent.
The coking process of above-mentioned integrative cokery is: this method comprises the following steps: at first the coking coal for preparing to be pushed the coking chamber from going into the coal coke outlet, when the coal seam reaches 900-1000mm, with rammer compacter compacting two times, makes dump density reach 0.84g/cm
3, tamp again two times when coalingging again to 2000mm, remove the coking coal at downdraf hole and vent place, seal into the coal coke outlet; Then open the adjusting flashboard of the branch flue of this coke oven, the flashboard of igniting of adjacent coke oven is opened, close the branch flue of this adjacent coke oven and regulate flashboard, close the downdraf hole of the side of igniting, under suction function, combustion gas enters from vent in the combustion chamber of this coking chamber burns, the waste hot gas that does not have an after-flame enters perpendicular quirk and the bottom fire channel from the downdraf hole of opposite side and burns, and heated side furnace wall and furnace bottom make coking coal carry out destructive distillation, and last flue gas enters flue collector through a minute flue, discharges from chimney; Under condition of negative pressure, regulate the adjusting gate valve on the primary air hole, make in the air admission combustion chamber, with the fully burning in the combustion chamber of dried distilled coal gas; Regulate the secondary air gate valve, in the perpendicular quirk of air admission, in perpendicular quirk, mix follow-up afterflame with unburnt waste gas and burnout, make discharged flue gas reach emission standard; After the coking maturation, water gasification quenching when temperature remains on 940 ℃ ± 50 ℃.
Because the present invention has adopted technique scheme, can make the combustion chamber at coking chamber top can be divided into the atmosphere of three levels in combustion processes: the top is the oxygen-enriched atmosphere of primary air suction port, the middle part be the combustion gases of oxygen deprivation atmosphere, lower floor be closely covering, without raw gas---the inert atmosphere that spreads.Rare gas element separates combustion chamber and coking chamber, and coal is the destructive distillation coking under secluding air.Therefore compare advantages such as having rational in infrastructure, less investment, coke quality height, produce burnt rate height, ton coking coal consumption is low and environmental pollution is low with background technology.
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a floor plan synoptic diagram of the present invention.
As depicted in figs. 1 and 2, pit kiln of the present invention comprises two rows conjuncted coke oven arranged side by side, a shared chimney 17, be provided with thrust wall 12 at the two ends of coke oven, front end at coke oven is provided with into coal coke outlet 22, on the back headwall of coke oven, be provided with quenching mouth 23, the bottom fire channel 13 in road at the bottom of the bottom of coke oven is provided with double as quenching backwater, the bottom front of going into coal coke outlet 22 at coke oven is provided with backwater by-path 19 and backwater main stem 21, one end of backwater by-path 19 is communicated with bottom fire channel 13, the other end is communicated with backwater main stem 21, end at backwater by-path 19 close bottom fire channels 13 is provided with backwater flashboard 20, two at chimney 17 are provided with flue collector 16, each coking chamber 1 is provided with branch flue 14, flue collector 16 is communicated with dividing flue 14, on minute flue 14, be provided with and regulate flashboard 15, wherein be provided with baking flue collector 16 and strengthen the hole 18 of heating that suction is used at the two ends and the middle part of flue collector 16, in the side walls of coking chamber 1, be provided with perpendicular quirk 4, perpendicular quirk 4 is communicated with the bottom fire channel 13 of coking chamber 1 bottom, be provided with downdraf hole 3 at coking chamber 1 furnace roof and side walls junction, the middle and upper part of perpendicular quirk 4 is communicated with downdraf hole 3, be provided with the secondary air made from refractory brick on perpendicular quirk 4 tops and explain valve 5, be provided with primary air hole 6 at coking chamber 1 furnace roof middle part, on primary air hole 6, be provided with the adjusting gate valve made from refractory brick 7, be provided with the airport 10 of igniting in the both sides of furnace roof, on the airport 10 of igniting, be provided with the gate valve made from refractory brick 11, be provided with thermal insulation layer 24 in the centre of two adjacent coking chambers 1, be provided with vent 8 in thermal insulation layer 24 and downdraf hole 3 with eminence, be provided with the flashboard 9 of igniting in the vent 8, the top of coking chamber 1 is combustion chamber 2.
Coking process of the present invention is: at first the coking coal for preparing is pushed in the coking chamber from going into the coal coke outlet with the hopper dolly, when the coal seam reaches 1000mm, shakeout with frog rammer compacting two times, make dump density reach 0.84g/cm
3, when reinstalling coking coal, tamp again two times to 2000mm, remove the coking coal at downdraf hole and vent place, seal into the coal coke outlet; Then open the adjusting flashboard of the branch flue of this coke oven, make coking chamber inner combustion chamber space negative regulation about 20 handkerchiefs, the flashboard of igniting of adjacent coke oven is opened, close the branch flue of this adjacent coke oven and regulate flashboard, close the downdraf hole of the side of igniting, under suction function, the combustion gas fire burns through vent enters the combustion chamber of this coking chamber from the coking chamber of adjacent coke oven, the waste hot gas that does not have an after-flame enters in proper order perpendicular quirk and the bottom fire channel from the downdraf hole of opposite side and burns, and heated side furnace wall and furnace bottom make coking coal carry out destructive distillation, last flue gas enters flue collector through a minute flue, discharges from chimney; Top layer coal decomposes, when the coal gas that thermo-cracking produces reaches a certain amount of, just at top, coal seam burn steadily, the end of igniting this moment.Ignite finish after, regulate the adjusting gate valve on the primary air hole, make in the air admission combustion chamber, with the fully burning in the combustion chamber of dried distilled coal gas, the most waste gas of unburn enters perpendicular quirk and bottom fire channel through the downdraf hole, at this moment regulate the secondary air gate valve, in the perpendicular quirk of air admission, in perpendicular quirk, mix follow-up afterflame with unburnt waste gas and burnout, make discharged flue gas reach emission standard; Coking coal in the coking chamber has shortened carbonization time in the two-way coking of destructive distillation of being heated of two faces up and down, has improved the coking quality; After the coking maturation, chamber temperature descends gradually, but keeps just quenching in 6 hours when temperature is reduced to 940 ℃, opens the quenching mouth from stove two ends upside during quenching, the water tap that frame is good is in advance opened, eject water on the focal plane, produce steam after water is heated, by secluding air and thermal exchange, the coke fire is extinguished, surplus water enters the backwater by-path by the bottom fire channel of furnace bottom, and the backwater main stem is recovered to the water reservoir internal recycle at last and uses.Open into the coal coke outlet, coke is released promptly finished whole process of coking.
Coaling the first time in the above-mentioned coking process layer thickness can also between 900-1000mm, select, the quenching temperature is selected between 890 ℃-990 ℃.
Claims (2)
1, a kind of integrative cokery, it comprises two rows conjuncted coke oven arranged side by side, a chimney, be provided with the thrust wall at the two ends of coke oven, front end at coke oven is provided with into the coal coke outlet, on the back headwall of coke oven, be provided with the quenching mouth, the bottom fire channel in road at the bottom of the bottom of coke oven is provided with double as quenching backwater, the bottom front of going into the coal coke outlet at coke oven is provided with backwater by-path and backwater main stem, one end of backwater by-path is communicated with bottom fire channel, the other end is communicated with the backwater main stem, end at the close bottom fire channel of backwater by-path is provided with the backwater flashboard, both sides at chimney are provided with flue collector, each coking chamber is provided with the branch flue, flue collector is communicated with dividing flue, on minute flue, be provided with the adjusting flashboard, it is characterized in that: further comprising at the two ends and the middle part of flue collector and be provided with the baking flue collector and strengthen the hole of heating that suction is used, the perpendicular quirk that in the coking chamber side walls, is provided with, perpendicular quirk is communicated with the bottom fire channel of coking chamber bottom, be provided with the downdraf hole in the junction of coking chamber furnace roof and side walls, the middle and upper part of perpendicular quirk is communicated with the downdraf hole, top at perpendicular quirk is provided with the secondary air gate valve, be provided with the primary air hole at coking chamber furnace roof middle part, on the primary air hole, be provided with the adjusting gate valve, both sides at furnace roof are provided with the airport of igniting, on the airport of igniting, be provided with gate valve, centre at two adjacent coking chambers is provided with thermal insulation layer, is provided with vent at thermal insulation layer and downdraf hole with eminence, is provided with the flashboard of igniting in the vent.
2, a kind of coking process that uses the described integrative cokery of claim 1, it is characterized in that: this method comprises the following steps: at first the coking coal for preparing to be pushed the coking chamber from going into the coal coke outlet, when the coal seam reaches 900-1000mm,, make dump density reach 0.84g/cm with rammer compacter compacting two times
3, tamp again two times when coalingging again to 2000mm, remove the coking coal at downdraf hole and vent place, seal into the coal coke outlet; Then open the adjusting flashboard of the branch flue of this coke oven, the flashboard of igniting of adjacent coke oven is opened, close the branch flue of this adjacent coke oven and regulate flashboard, close the downdraf hole of the side of igniting, under suction function, combustion gas enters from vent in the combustion chamber of this coking chamber burns, the waste hot gas that does not have an after-flame enters perpendicular quirk and the bottom fire channel from the downdraf hole of opposite side and burns, and heated side furnace wall and furnace bottom make coking coal carry out destructive distillation, and last flue gas enters flue collector through a minute flue, discharges from chimney; Under condition of negative pressure, regulate the adjusting gate valve on the primary air hole, make in the air admission combustion chamber, with the fully burning in the combustion chamber of dried distilled coal gas; Regulate the secondary air gate valve, in the perpendicular quirk of air admission, in perpendicular quirk, mix follow-up afterflame with unburnt waste gas and burnout, make discharged flue gas reach emission standard; After the coking maturation, water gasification quenching when temperature remains on 940 ℃ ± 50 ℃.
Priority Applications (1)
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CN99125326A CN1084782C (en) | 1999-12-09 | 1999-12-09 | Integrative cokery and its coking process |
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CN99125326A CN1084782C (en) | 1999-12-09 | 1999-12-09 | Integrative cokery and its coking process |
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CN1255528A true CN1255528A (en) | 2000-06-07 |
CN1084782C CN1084782C (en) | 2002-05-15 |
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CN99125326A Expired - Fee Related CN1084782C (en) | 1999-12-09 | 1999-12-09 | Integrative cokery and its coking process |
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