CN100560690C - A kind of fully enclosed vertical coke oven - Google Patents
A kind of fully enclosed vertical coke oven Download PDFInfo
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- CN100560690C CN100560690C CNB2007100614304A CN200710061430A CN100560690C CN 100560690 C CN100560690 C CN 100560690C CN B2007100614304 A CNB2007100614304 A CN B2007100614304A CN 200710061430 A CN200710061430 A CN 200710061430A CN 100560690 C CN100560690 C CN 100560690C
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Abstract
The invention discloses a kind of fully enclosed vertical coke oven, it is characterized in that by top charing section, middle part transition section and bottom heat exchanging segment or cooling section constitute, coking chamber is to be made of single coking chamber-combustion chamber unit or a plurality of coking chamber-combustion chamber unit, the coking chamber bottom is connected by the cooling room of transition section and heat exchanging segment, be connected with the coke discharging device in the bottom of heat exchanging segment and be immersed in the fluid-tight quenching groove, be provided with the coke e Foerderanlage in the fluid-tight quenching groove.The whole coking of the present invention is carried out in closed system, the dust pollution of having avoided coal port, coke oven door, bleeder and having coaling and cause when the discharging of the coke, this coke oven adopts regenerator or heat exchange type structure, the thermo-efficiency height, reclaim coal gas and chemical products, reclaim the high temperature coke sensible heat, resource is fully used.
Description
Technical field
The present invention relates to the destructive distillation of a kind of top, the fully enclosed vertical coking integrating device that middle part transition and bottom heat exchange structure are formed is especially for coking coal production metallurgy Jiao or foundry coke and reclaim coal gas and a kind of fully enclosed vertical coke oven of other chemical products.
Background technology
Technology formerly, CN105617C discloses a kind of heat exchange structure of crouch its single coking chamber-combustion chamber unit of vertical continuous coke oven or a plurality of coking chamber-combustion chamber unit and bottom and has formed.Coking chamber is made up of horizontal part of the coking chamber of normal pressure work and the vertical part of coking chamber: an end of the horizontal part of coking chamber is the mobile fire door of sealing, and the other end is the closure plate structure, and the top is provided with coal port and raw gas outlet, and the bottom is provided with coke and disperses outlet; The vertical part of coking chamber is positioned at the bottom that coke disperses outlet, divide raw edge that horizontal part of coking chamber and the vertical part of coking chamber are connected by coke, the top of the vertical part of coking chamber is provided with air and gas inlet, raw gas and combustion exhaust outlet, the bottom is provided with cold gas import and coke discharging turnover panel, the bottom of coke discharging turnover panel is immersed in the quenching liquid seal trough, establishes the coke discharging transmit machine in the quenching liquid seal trough.
The vertical structure that will crouch in the foregoing invention organically combines and makes carbonization process carry out in airtight system, fundamentally eliminated the hole of coalingging, upcast, fire door and the leakage of the discharging of the coke in the operation of coalingging is polluted, had level of automation height, thermo-efficiency height, reclaim characteristics such as coal gas and chemical products.Its weak point is that the pusher difficulty is bigger.Its reason is because the existence of raw coal, semicoke makes coke pushing put more effort, and has caused the grievous injury of furnace wall, and this infringement is affected converter life.
Technology formerly, CN105617C has developed a kind of upright furnace of Hybrid Heating indirectly continuously.This coke oven is based on zone heating sectional management theory, during coking, go into the stove coal charge and deliver to the furnace roof coal bunker by lift, go into the stove coal charge under the effect of gravity, with discharge of the coke the discharging of the coke continuously of machine and slowly descending of bottom of furnace body scraper plate, when coal charge enters coking chamber drying and carbonization section, make coal charge expand from the heat indirect heating of coking chamber wall.For the coal charge of resisting this section expands, the partition wall of coking chamber and combustion chamber adopts totally enclosed structure.Finished at this totally-enclosed section coal charge dehydrate, fusion is softening and solidify.When the destructive distillation material continues to descend, the high temperature section that enters coking chamber, the material dehydrogenation is shunk and is cracked.The destructive distillation material makes to conduct heat by high temperature section and high-temp waste gas heat exchange to be strengthened, and coking time is shortened.Enter coking chamber gasification cooling section when continuing to descend after the coke maturation, in the water vapour generating gasification reaction that produces from fluid-tight quenching groove, red burnt temperature is reduced at this stage high temperature coke.Coke in arc jacket water (J.W.) cold type discharges of the coke the decline process of bucket once more with the water vapour heat exchange of rising, steam temperature raises and coke temperature continues to descend, and falls into fluid-tight quenching groove up to coke, is scraped by the scraper plate machine that discharges of the coke at last.The advantage of this furnace structure is: the coking chamber top design becomes low temperature storing section, and the coal process is carried out continuously, has suppressed furnace roof and has smoldered and burn with anger, and has eliminated the furnace roof pollution; The coking chamber high temperature section adopts dual-heating mode method heating arrangement, has improved thermo-efficiency; The coking chamber bottom is provided with gasification cooling section structure, and coke quenching steam rises and red burnt heat exchange, and gasification reaction is carried out in this section in the back of heating up, and has utilized red burnt heat energy, has eliminated heavy mechanical equipments such as pushing machine and coke guide, has reduced investment, has simplified operation.The weak point that this coke oven construction exists is the difficulty and be difficult to satisfy the scale operation requirement of the discharging of the coke.
Technology formerly, US5607556 has developed a telescopic coking chamber coker.Inside and outside sleeve is steel plate structure, is provided with the heating quirk therebetween.When hydropress with coal when an end of coking chamber pushes coking chamber, coal charge in sleeve by indirect two-way heating, along with descending dehydrated successively, dry, the softening bonding of coal charge, curing, dehydrogenation semicoke shrink and change into high temperature coke at last, fall into coke quencher from the coking chamber the other end, cool off with water vapour.Coal charge changes into all processes of coke and all finishes in above-mentioned tubular type sleeve coking chamber.The advantage of this device is that it has reduced pollution to environment, and it reveals the requirement that index can satisfy U.S. Clean Air Act.But coal changes into all processes of coke and all finishes in tubular type sleeve coking chamber, fails dehydrogenation semicoke contraction process is separated.And this last process needs comparatively high temps and long time, and this makes that explained hereafter efficient of the present invention is low.In addition, tubular type sleeve coking chamber complex structure, floor space is also big.
Technology formerly, US6077399 still adopts tubular type sleeve coking chamber structure, still, has cancelled chamber structure in sleeve, and the required heat energy of coal charge charing is from the High Temperature Gas of combustion chamber.This characteristic feature of an invention is coking under pressurization, because coking chamber pressure is higher, so the fluid-tight coke quencher of coking chamber coke end is the large U type structure, if charing pressure reaches 5atm or is higher than 5atm when above, coke quencher is by pressurized vessel---and soaking pit replaces, the bottom of soaking pit connects by the locking storehouse, and valve is equipped with in the top and the bottom in locking storehouse, discharges coke and keeps coking chamber pressure by regulated valve.The problem of its existence is: operational difficulty is carried out in (1) charing under pressure; (2) need pressurized vessel, investment is high; (3) in order to keep technological operation pressure needs more matching unit and parts, this makes complicated operation also increase investment; (4) in the soaking pit be high temperature, the control turnover panel in the high-temperature zone requires special material, and operation easier is big; (5) tubular type sleeve coking chamber complex structure, and be difficult to be combined into one, floor space is also big.
Summary of the invention
The present invention is based on the problem of above-mentioned existence, provide a kind of nothing to reveal and pollute, utilize mixed coal production high-quality metallurgy or foundry coke, reclaim chemical products and coal gas, reclaim the high temperature coke sensible heat, production efficiency, thermo-efficiency and level of automation are high and invest low a kind of fully enclosed vertical coke oven.
The present invention for achieving the above object, coke oven adopts upright structures, from top to bottom by the top coal and press coal coke pushing system, oven body part, bottom coke discharging and transport sector to form.
Blanking tube adopts the bell structure in the coal system of top, and coal charge is finished by screw feeder from the small feed bin to the coking chamber.Oven body part comprises charing section, transition section and cooling section, and charing section in top is made up of single coking chamber-combustion chamber unit or a plurality of coking chamber-combustion chamber unit.The coking chamber bottom is connected with the bottom cooling section by the transition section structure, and the coking chamber top is provided with coal port and presses the coal coke pusher; The cooling section bottom is connected with the coke discharging device, and the bottom of coke discharging device is immersed in the fluid-tight quenching groove, is provided with the coke e Foerderanlage in the fluid-tight quenching groove.In the coking chamber both sides are combustion chambers, and both sides are enclosed constructions in addition.The coking chamber bottom is a cooling section, and the cooling section both sides are regenerator, and the bottom of regenerator links to each other with the bottom flue chimney.Body of heater top and middle part transition section are provided with the raw gas outlet, and the bottom of cooling section is provided with the cooling gas inlet, and the top of cooling section is provided with the high temperature cooling gas exit, and bottom of furnace body is provided with the burning gas inlet.
Wherein: described coking chamber top is provided with hydraulic pressure coal pusher structure; Described combustion chamber is made up of a plurality of flues unit, and its flue is positioned at the both sides of coking chamber retort section; Described coking chamber width from top to bottom increases gradually, and its tapering is greater than 20mm; Described coking chamber-combustion chamber partition wall is sealed structure or the structure that leaves the raw gas passage; Be provided with in the described coke discharging device and lead focusing mechanism.
Coke oven of the present invention adopts the advantage and positively effect of said structure: (1) is compared with patent of invention CN105617C, and the present invention adopts upright structures, and the resistance when the discharging of the coke is reduced greatly, helps the discharging of the coke, and helps prolonging converter life.(2) compare with patent of invention CN105617C and Russian vertical type successive type coke oven, the present invention adopts the vertical type quirk, to improve body of heater intensity.(3) compare with US6077399 with Calderon patent of invention US5607556, the Calderon patent of invention has only an annulus formula coking chamber, and coking chamber of the present invention is the cell-type structure, can form a coke oven by one or more coking chamber-combustion chamber units, and floor space is little.It is big also to overcome Calderon patent of invention coke pushing resistance in addition, and the pressure that charge of coke puts on furnace wall is also big, thereby the coke pushing difficulty, furnace wall rapid wear, deficiencies such as converter life weak point.(4) compare with existing level cell-type coke oven, necessary manual operations such as cleaning fire door have been cancelled, whole process can be carried out under computer program control automatically, and coal charge coking is carried out the dust pollution of having avoided coal port, coke oven door, bleeder and having coaling and cause when the discharging of the coke in tightness system.The characteristics of coke oven of the present invention are: (1) coking chamber is that rising structure reduces the coke pushing resistance when the discharging of the coke greatly, helps the discharging of the coke, and helps prolonging converter life.(2) the coal charge operation is carried out continuously, can realize high mechanization.(3) coking is carried out in closed system, eliminated coaling, discharge of the coke, quenching and fire door reveal the pollution that causes.(4) adopt regenerator or heat exchange type structure, thermo-efficiency height.(5) reclaim coal gas and chemical products, resource is fully used.
Description of drawings
Fig. 1 is the structural representation of body of heater of the present invention
Fig. 2 is a body of heater vertical section structure synoptic diagram of the present invention
Among the figure: charing section 1 transition section 2 cooling sections 3 coking chambers 4 combustion chambers 5 coke discharging devices, 6 fluid-tight quenching grooves, 7 coke e Foerderanlages 8 are pressed coal coke pusher 9 regenerator 10 bottom flues 11 middle part raw gas outlets 12 cooling gas entries 13 high temperature cooling gas exits 14 furnace roof coal stores 15 bells 16 small feed bins 17 burning gas entries 18 combustion chambers-coking chamber wall 19 top raw gas outlets 20
Embodiment
Fully enclosed vertical coke oven furnace binding of the present invention is shown in Fig. 1～2.Blanking tube adopts bell 16 structures in the coal system of top, and coal charge 4 is finished by screw feeder from small feed bin 17 to coking chamber.Oven body part comprises charing section 1, transition section 2 and cooling section 3, and top charing section 1 is made up of Unit 5, single coking chamber 4-combustion chamber or Unit 5, a plurality of coking chamber 4-combustion chamber.Coking chamber 4 bottoms are connected with bottom cooling section 3 by transition section 2 structures, and coking chamber 4 tops are provided with coal port and press coal coke pusher 9; Cooling section 3 bottoms are connected with coke discharging device 6, and the bottom of coke discharging device 6 is immersed in the fluid-tight quenching groove 7, establishes coke e Foerderanlage 8 in the fluid-tight quenching groove 7.Coking chamber 4 both sides are combustion chambers 5, and both sides are enclosed constructions in addition.Coking chamber 4 bottoms are cooling sections 3, and cooling section 3 both sides are regenerator 10, and the bottom of regenerator 10 is connected with bottom flue 11.Body of heater top and middle part transition section 2 leave raw gas outlet 12, and cooling gas entry 13 is arranged at the bottom of cooling section 3, and high temperature cooling gas exit 14 is arranged at the top of cooling section 3, and bottom of furnace body has burning gas entry 18.Wherein: described coking chamber 4 tops are provided with presses coal coke pusher 9; Described combustion chamber 5 is made up of a plurality of flues unit, and its flue is positioned at the both sides of coking chamber 4 retort section; Described coking chamber 4 width from top to bottom increases gradually, and tapering is greater than 20mm; Described coking chamber-combustion chamber partition wall 19 is sealed structure or the structure that leaves the raw gas passage; Be provided with in the described coke discharging device 6 and lead focusing mechanism.
Fully enclosed vertical coke oven of the present invention is an example to produce five kiloton metallurgical cokes per year, according to stream flow principle in the stove, coke oven is by the coal tar system, and coke cools off the discharge system, air gas burning heating and waste gas system, four big systems of raw gas system form, and its furnace binding is shown in Fig. 1～2.
Coal charge is transported to furnace roof coal store 15 by lift, opens and closes through bell 16 to drop in the small feed bin 17, delivers to coking chamber 4 by worm conveyor then.After coking chamber 4 top coal charges were preheated, coal coke pusher 9 promotion materials were descending with pressing, and arrive charing section 1, after coal charge is transformed into solid coke, continued with pressing coal coke pusher 9 to promote and conduct oneself with dignity to move down to enter cooling section 3.In cooling section 3 and upstream cooling coal gas or Low Temperature Steam heat exchange, progressively be cooled, cooled low temperature coke enters in the fluid-tight quenching groove 7 by coke discharging device 6, is sent to burnt equipment of sieve or coke bin by the coke e Foerderanlage 8 in the fluid-tight quenching groove 7 at last.
The coke oven bottom is the cooling section 3 of high temperature coke, and circulation cooling coal gas is gone against the stream with the high temperature coke that moves down from bottom of furnace body cooling gas entry 13 input cooling sections 3.High temperature cooling gas exit 14 through cooling coal gas 5 bottom transition sections, 2 positions in the combustion chamber that heat exchange heats up is drawn out of, and passes through heat recuperation outside stove, its temperature is reduced after, import cooling section 3 bottoms again, the cooling of high temperature coke is carried out in circulation.
Burning coal gas directly enters into 5 bottoms, combustion chamber from 18 inputs of bottom of furnace body burning gas entry.Air enters (air and high-temp waste gas alternately pass through) from bottom flue 11, through regenerator 10 preheatings, arrive 5 bottoms, combustion chamber and coal gas mixed firing, at first give coking chamber 4 heat supplies at the high-temp waste gas that the flue burning generates by combustion chamber-coking chamber wall 19, final high temperature waste gas is divided into two parts: a part is carried out waste gas circulation by the circulation pore of flue bottom, another part high-temp waste gas enters into regenerator 10 by the exhaust apertures of flue bottom, after bottom flue 11 discharge by chimney.Next circulation then is air and high-temp waste gas interchange channel, and the principle of its whole process then repeats previous circulation.
The top of body of heater and middle part all are provided with the raw gas outlet, and the raw gas that produces in the retort process imports effuser from the outlet 20 at body of heater top through bridge tube, upcast.Spray cooling at bridge tube and effuser place with cycle of higher pressure ammoniacal liquor.And the raw gas that comes out from the outlet 12 at body of heater middle part sprays one of cooling and the cooled raw gas in top through cyclic ammonia water and is pumped to cold bulging workshop section through air suction bending tube.
Claims (5)
1. a fully enclosed vertical coke oven is characterized in that this coke oven is by top charing section (1), and middle part transition section (2) and bottom cooling section (3) constitute; Described charing section (1) is to be made of single coking chamber (4)-(5) unit, combustion chamber or a plurality of coking chamber (4)-unit, combustion chamber (5), and coking chamber (4) bottom links to each other with bottom cooling section (3) by middle part transition section (2); Described transition section (2) leaves raw gas outlet (12); Described cooling section (3) bottom links to each other with coke discharging device (6).
2. the described fully enclosed vertical coke oven of claim 1 is characterized in that coking chamber (4) both sides are combustion chamber (5), and both sides are enclosed constructions in addition.
3. the described fully enclosed vertical coke oven of claim 1 is characterized in that coking chamber (4) top is provided with coal port and presses coal coke pusher (9).
4. the described fully enclosed vertical coke oven of claim 1 is characterized in that coking chamber (4) is pyramidal structure, and its tapering is greater than 20mm.
5. the described fully enclosed vertical coke oven of claim 1 is characterized in that bottom cooling section (3) is provided with cooling gas entry (13) and high temperature cooling gas exit (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100614304A CN100560690C (en) | 2007-01-09 | 2007-01-09 | A kind of fully enclosed vertical coke oven |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100614304A CN100560690C (en) | 2007-01-09 | 2007-01-09 | A kind of fully enclosed vertical coke oven |
Publications (2)
| Publication Number | Publication Date |
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| CN101003738A CN101003738A (en) | 2007-07-25 |
| CN100560690C true CN100560690C (en) | 2009-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007100614304A Expired - Fee Related CN100560690C (en) | 2007-01-09 | 2007-01-09 | A kind of fully enclosed vertical coke oven |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101575524B (en) * | 2008-05-07 | 2013-01-23 | 中冶焦耐自动化有限公司 | Application of anti-fluctuation diffusion curve in gas collecting pipe diffusion control device of coke furnace |
| CN101575525B (en) * | 2008-05-07 | 2012-09-12 | 中冶焦耐自动化有限公司 | Device and method for controlling diffusion of gas collecting pipe |
| CN101519595B (en) * | 2009-03-31 | 2012-06-13 | 山西中元煤洁净技术有限公司 | Coal-carbonifying device |
| CN102336511A (en) * | 2011-07-14 | 2012-02-01 | 中国中轻国际工程有限公司 | Method for facilitating uniform distribution of gas flow in regenerative chamber of glass kiln |
| CN102585851A (en) * | 2012-03-23 | 2012-07-18 | 太原理工大学 | Bottom charging and discharging cart for bottom charging and discharging carbonization furnace |
| CN102827619B (en) * | 2012-09-24 | 2013-11-20 | 沈阳海源干馏设备技术开发有限公司 | Integrated gas retort |
| CN103232858B (en) * | 2013-04-10 | 2014-10-08 | 山西鑫立能源科技有限公司 | Coal gangue pyrolysis gasification water gas reaction material cooling apparatus |
| CN108315031A (en) * | 2018-03-19 | 2018-07-24 | 中国科学院青岛生物能源与过程研究所 | A kind of smalls gas retort |
| CN110922997B (en) * | 2019-12-10 | 2024-07-16 | 北京首钢国际工程技术有限公司 | Dispersed combustion type heat recovery coke oven |
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2007
- 2007-01-09 CN CNB2007100614304A patent/CN100560690C/en not_active Expired - Fee Related
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| CN101003738A (en) | 2007-07-25 |
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Granted publication date: 20091118 Termination date: 20160109 |