CN101260304A - Technique and device for removing dust of coke oven by boiler system - Google Patents
Technique and device for removing dust of coke oven by boiler system Download PDFInfo
- Publication number
- CN101260304A CN101260304A CNA2007101854644A CN200710185464A CN101260304A CN 101260304 A CN101260304 A CN 101260304A CN A2007101854644 A CNA2007101854644 A CN A2007101854644A CN 200710185464 A CN200710185464 A CN 200710185464A CN 101260304 A CN101260304 A CN 101260304A
- Authority
- CN
- China
- Prior art keywords
- dust
- coke
- fire door
- gas
- turnover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000571 coke Substances 0.000 title claims abstract description 103
- 239000000428 dust Substances 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000002485 combustion reaction Methods 0.000 claims abstract description 62
- 238000007599 discharging Methods 0.000 claims abstract description 16
- 238000005516 engineering process Methods 0.000 claims abstract description 15
- 238000004939 coking Methods 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 48
- 239000003500 flue dust Substances 0.000 claims description 45
- 238000002156 mixing Methods 0.000 claims description 40
- 239000000779 smoke Substances 0.000 claims description 37
- 238000009826 distribution Methods 0.000 claims description 30
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 13
- 239000003546 flue gas Substances 0.000 claims description 13
- 239000002912 waste gas Substances 0.000 claims description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 238000003763 carbonization Methods 0.000 claims description 8
- 230000001314 paroxysmal effect Effects 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 239000003034 coal gas Substances 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 239000005864 Sulphur Substances 0.000 claims description 4
- 238000010791 quenching Methods 0.000 claims description 4
- 238000005367 electrostatic precipitation Methods 0.000 claims description 3
- 230000000171 quenching effect Effects 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 8
- 239000003517 fume Substances 0.000 abstract description 6
- 238000006477 desulfuration reaction Methods 0.000 abstract description 5
- 230000023556 desulfurization Effects 0.000 abstract description 5
- 239000003245 coal Substances 0.000 abstract description 3
- 239000006260 foam Substances 0.000 abstract description 3
- 238000003379 elimination reaction Methods 0.000 abstract 3
- 208000028659 discharge Diseases 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000005474 detonation Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005496 tempering Methods 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Landscapes
- Coke Industry (AREA)
Abstract
The invention relates to a technology and equipment which utilize a boiler system to eliminate fume and dust from a coking oven. A movable dust-collecting vehicle is arranged on the top of the coking oven to collect the fume and dust escaping during the process of coke collecting and coal feeding, and the fume and the dust undergo primary burning in a combustion chamber, the coke foam is separated and then led inside the boiler for sufficient combustion, which not only utilizes the heat energy but also achieves profound dust-elimination and desulfurization for the fume through the configuration facilities of the boiler so as to accomplish the aim of clean discharge. The technology provided by the invention is characterized in simple operation, investment reducing, no occupation of area, and good effect in smoke-removing and dust-elimination, which conforms to national 2nd standard of discharging. The invention can replace the ground dust extract station. In order to implement the fume collection described in the technology, the specific dust-collecting vehicle is designed. The invention is suitable for the factory with an established complete boiler system to carry out the operation of smoke-removing and dust-elimination.
Description
Technical field
The present invention relates to a kind of technology and device thereof that utilizes boiler systems to carry out coke oven smoke eliminating dust removing.
Technical background
Coke oven coal-charging with discharge of the coke during smoke contamination bigger.Principal feature be disperse, fume amount is big, continuity and paroxysmal and deposit, the temperature height, have naked light, intractability is big.At present, main environmental practice has furnace roof dust-removing vehicle and ground station for dust removal:
1, furnace roof dust-removing vehicle:
The furnace roof dust-removing vehicle is characterized in that smoke combustion, washs, dewaters, dedusting and induced draft fan combine, and top dress coke oven then is combined into a chassis with coal loader; To make firm by ramming side dress coke oven then independent groups be combined into a chassis.Vehicle-mounted at furnace roof track mobile working.It burns the raw gas and the flue dust of overflowing when the discharging of the coke of coalingging, and reaches the effect of smoke prevention and dust control.
Because it moves at furnace roof, has following shortcoming:
1) furnace roof dust-removing vehicle combination multiple devices, car weight reaches the 70-100 ton.In the furnace roof operation, cause the body of heater distortion easily for a long time.Have a strong impact on the work-ing life of coke oven body.
2) treatment capacity is restricted, and all discharging raw gas, flue dust all can not be captured and disposes, cause to coaling or during coke pushing, in the air often with flue gas particles, contaminate environment.
3) can only do dust removal process, can't control sulphur content.
2, ground station for dust removal:
The ground station for dust removal dedusting method is the comparatively advanced a kind of method of present coke oven smoke eliminating dust removing.Its primary structure is: on the coke oven side fixed ground dedusting workstation is set, the pollution flue gas of the generation of will the discharging of the coke, coaling is delivered to the ground handling station and is focused on.Establish the car of giving a dinner of welcome at furnace roof, on coke guide, establish dust hood, pipe-line transportation system is set along furnace superintendent.Establish water cooler, bag-type dusting unit (or other dedusting unit), thionizer, induced draft fan and chimney in terrestrial station.
There is following shortcoming in ground station for dust removal:
1) floor space is big, about 800-1000m2.
2) owing to wind loss, terrestrial station's load is big.Coke oven by 600,000 tons of the high 4.3m annual production in carbonization chamber is an example, and blower fan needs more than the blast 7500Pa, air quantity 14-18 ten thousand m3/h, and power of motor is about 650KW.Installed capacity is big, the running cost height, and the burnt running cost 2.5-4 of ton unit has strengthened production cost.
3) above-mentioned reason causes the construction costs height, is example by the coke oven of 600,000 tons of annual production, needs to drop into ten thousand yuan of 1300-1800.And long construction period was generally 6-8 month.
Summary of the invention
It is few to the purpose of this invention is to provide a kind of floor space, and construction costs is low, and production cost is low, easy to operate, and the boiler systems that utilizes of easy-maintaining carries out the technology and the device of coke oven smoke eliminating dust removing
Technical process of the present invention is described below:
Be provided with mobile smoke catching car at the top of coke oven, the flue dust that will discharge of the coke, dissipation is come out when coalingging is captured in the combustion chamber primary combustion, guide to fully burning in the boiler behind the branch out of focus foam again, promptly utilized heat, utilize the auxiliary facility of boiler that flue gas is carried out degree of depth dedusting, desulfurization again, reach the purpose of cleaning discharging.
(1) collects raw gas and flue dust
In the process of the discharging of the coke, the smoke catching car places the corresponding position, furnace roof top of coking chamber, the combustion chamber automatic panel-turnover and the pusher side fire door collection air distribution sleeve pipe automatic panel-turnover of smoke catching car are closed, the mouth that blocks burnt dust hood top of coke guide telescopic shaft and coke oven joins, the effuser telescopic shaft joins with the effuser suction inlet of band automatic panel-turnover, open the coke guide automatic panel-turnover, beginning to open the burnt fire door of surveying discharges of the coke, pushing machine is released red Jiao from coking chamber, coke falls in the quenching car railway carriage by leading burnt grid, the flue dust that produces of the paroxysmal flue dust that produces and firedoor frame top, under the suction function of heat buoyancy and blower fan, suck air in the collection process, flue dust and Air mixing temperature are 150-200 ℃, enter mixing tank by the coke guide telescopic shaft, enter the collecting pipe that is provided with along body of heater by the effuser telescopic shaft again;
The discharging of the coke finishes, and closes the coke guide automatic panel-turnover, opens combustion chamber automatic panel-turnover and pusher side fire door simultaneously and collects air distribution sleeve pipe automatic panel-turnover.In the process of coalingging, both sides, bottom, the combustion chamber fire door telescopic shaft and the coke oven furnace roof fire door of smoke catching car are joined, by the 600-800 ℃ of next combustion chamber internal combustion that the flammable raw gas of high temperature enters the smoke catching car of coke furnace carbonization chamber, controlling chamber temperature by the adjustable damper of regulating the lower end, combustion chamber is 850-950 ℃, hot waste gas after the burning mixes at the mixing tank of smoke catching car with the flue gas of being collected the collection of air distribution sleeve pipe by the pusher side fire door, because the pusher side fire door is collected the flue gas of air distribution sleeve pipe collection and is sucked air simultaneously, making mixed flue dust mixing temperature is 200-250 ℃, and mixed flue dust gas enters the collecting pipe that is provided with along body of heater by the effuser telescopic shaft;
For guaranteeing safety, prevent that detonation from impacting to equipment, on the smoke catching car, installed to unload safely and put manhole, when detonation takes place, when system's moment malleation reached the 50-100mm water column, safety was unloaded and is put the automatic take-off release of manhole, after pressure is normal, automatically reset;
(2) purifying treatment
Collecting pipe flue dust gas for stablizing gas blower preceding pipeline vacuum tightness, has been installed a cover self-forced type air-making-up pressure-regulating device at collecting pipe in gas blower enters boiler behind the cyclonic separator dust-separating; When vacuum tightness was high in the pipeline, fan blade was opened greatly, and the air distribution amount increases; Otherwise fan blade turns down, and the air distribution amount reduces; Thereby vacuum is in the 100-500Pa scope in the stable pipe.
Flue dust gas enters boiler at temperature 1000-1100 ℃, fully burning under the condition of excess air factor 1.1-1.3, the boiler waste gas after the burning are through heat exchange, again through becoming the gas of cleaning behind electrostatic precipitation, the wet method sulphur removing and dust removing, through induced draft fan, enter atmosphere by chimney.
In order to realize in the above-mentioned technology, special-purpose smoke catching car and self-forced type tonifying Qi regulator have been designed.Smoke catching driving skills art scheme is as follows:
It is by support, the walking steel wheel, motor, combustion chamber and mixing tank are formed, it is characterized in that support is equipped with walking steel wheel and motor, combustion chamber and mixing tank are installed above the support, respectively there is a fire door suction pipe both sides, bottom, combustion chamber, there is the fire door telescopic shaft fire door suction pipe lower end, automatic ignition burner of coal gas and adjustable damper have been installed in the lower end, combustion chamber, top, combustion chamber one side has the combustion exhaust escape pipe to communicate with mixing tank, top, combustion chamber opposite side has hydraulically extensible bar and pusher side fire door collection air distribution sleeve pipe to link to each other, mixing tank top has coke guide telescopic shaft and pusher side fire door to collect the air distribution sleeve pipe, the pusher side fire door is collected the air distribution sleeve pipe and is communicated with mixing tank top, the effuser telescopic shaft is arranged at the mixing tank bottom, at mixing tank safety has been installed and has unloaded and put manhole.
Aforesaid safety is unloaded and is put manhole and be made up of safety manhole body, manhole plate, balancing weight and gag lever post, and the safety manhole body is equipped with gag lever post, is connected with manhole plate on the gag lever post, and balancing weight is arranged on the manhole plate.
In the aforesaid combustion exhaust escape pipe combustion chamber automatic panel-turnover is installed.
Aforesaid pusher side fire door is collected pusher side fire door collection air distribution sleeve pipe automatic panel-turnover is installed in the air distribution sleeve pipe.
In the aforesaid coke guide telescopic shaft coke guide automatic panel-turnover is installed.
A kind of coke oven furnace top smoke catching car of the present invention can move along track at the coke oven furnace roof under the effect of motor voluntarily by the walking steel wheel.
For guaranteeing safety, prevent that detonation from impacting to equipment, at mixing tank safety has been installed and has unloaded and put manhole.When detonation takes place, when system's moment malleation reached the 50-100mm water column, safety was unloaded and is put the automatic take-off release of manhole, after pressure is normal, automatically reset.
The technical scheme of self-forced type tonifying Qi regulator is as follows:
Self-forced type air-making-up pressure-regulating device is that it is made up of framework, pressure regulation fan blade and pressure regulation counterweight bar, and mobilizable pressure regulation wind page or leaf is installed on air-making-up pressure-regulating device framework, and pressure regulation counterweight bar is arranged on the pressure regulation wind page or leaf.
Be provided with the continuous gas supply groove of hydrolock along furnace superintendent, burning coal gas can be provided continuously for the smoke catching car that moves.System is provided with the automatic fireproof tempering device of coal gas.
The present invention compared with prior art has following advantage:
1, is provided with mobile smoke catching car at the top of coke oven, the flue dust that will discharge of the coke, dissipation is come out when coalingging is captured in the combustion chamber primary combustion, guide to fully burning in the boiler behind the branch out of focus foam again, promptly utilized heat, utilize the auxiliary facility of boiler that flue gas is carried out degree of depth dedusting, desulfurization again, reach the purpose of cleaning discharging.
2, this technological operation is simple, saves investment, need not take up an area of, and focusing furnace top smoke catching rate height and smoke medicining dust-removing effect are good, reach national secondary discharge standard.
3, substitute ground station for dust removal with boiler systems.
4, the smoke catching bassinet structure is simple, in the design process of car load, the assembly on the car has been carried out tightly urging the type combination.The size and the weight of vehicle frame have been alleviated greatly.The weight control that makes car load is at the 20-25 ton.
5, construction costs is low, and production cost is low, and is easy to operate, easy-maintaining.
Description of drawings
Fig. 1 is a smoke catching bassinet structure synoptic diagram of the present invention
Fig. 2 is a safety relief manhole structure synoptic diagram of the present invention
Fig. 3 is a self-forced type tonifying Qi regulator structural representation of the present invention
As shown in the figure:
1, vehicle body hanger 2, walking steel wheel
3, motor 4, fire door suction pipe
5, fire door telescopic shaft 6, adjustable damper
7, gas automatic firing mechanism 8, pusher side fire door are collected the air distribution sleeve pipe
9, hydraulically extensible bar 10, combustion chamber
11, combustion exhaust escape pipe 12, fire door are collected the sleeve pipe automatic panel-turnover
13, combustion chamber automatic panel-turnover 14, safety relief manhole
15, coke guide automatic panel-turnover 16, coke guide telescopic shaft
17, effuser telescopic shaft 18, mixing tank
19, safety manhole body 20, manhole plate
21, balancing weight 22, gag lever post
23, regulator framework 24, pressure regulation wind page or leaf
25, pressure regulation counterweight bar
Embodiment:
Furnace top smoke catching car vehicle body hanger 1 is equipped with walking steel wheel 2 and motor 3, combustion chamber 10 and mixing tank 18 are installed above the support 1, respectively there is a fire door suction pipe 4 both sides, 10 bottom, combustion chamber, there is fire door telescopic shaft 5 fire door suction pipe 4 lower ends, automatic ignition burner 7 of coal gas and adjustable damper 6 have been installed in 10 lower ends in the combustion chamber, 10 tops, combustion chamber, one side has combustion exhaust escape pipe 11 to communicate with mixing tank 18, and combustion chamber automatic panel-turnover 13 is installed in the combustion exhaust escape pipe 11; Mixing tank 18 tops have coke guide telescopic shaft 16 and pusher side fire door to collect air distribution sleeve pipe 8, and coke guide automatic panel-turnover 15 is installed in the coke guide telescopic shaft 16.The pusher side fire door is collected pusher side fire door collection air distribution sleeve pipe automatic panel-turnover 12 is installed in the air distribution sleeve pipe 8; Effuser telescopic shaft 17 is arranged at mixing tank 18 bottoms, and coke guide automatic panel-turnover 15 is installed in the coke guide telescopic shaft 16.Each telescopic shaft promotes, drags by hydraulically extensible bar 9, safety has been installed at mixing tank 18 tops has unloaded and put manhole 14.Safety is unloaded and is put manhole 14 gag lever post 22 is installed, and is connected with manhole plate 20 on the gag lever post 22, and balancing weight 21 is arranged on the manhole plate 20.
In the process of the discharging of the coke, coke guide moves to the corresponding position of the coking chamber that need discharge of the coke, and leads burnt grid and aims at the coking chamber that need discharge of the coke.Coke oven furnace top smoke catching car drives the corresponding position, furnace roof top that 1 walking of walking steel wheel places coking chamber by motor 2, combustion chamber automatic panel-turnover 13 and pusher side fire door collection sleeve pipe automatic panel-turnover 12 are closed, coke guide telescopic shaft 16 joins with the mouth of the burnt dust hood of blocking of coke oven top, effuser telescopic shaft 17 joins with the effuser suction inlet of band automatic panel-turnover, open coke guide automatic panel-turnover 15, beginning to open the burnt fire door of surveying discharges of the coke, pushing machine is released red Jiao from coking chamber, coke falls in the quenching car railway carriage by leading burnt grid, the flue dust that produces of the paroxysmal flue dust that produces and firedoor frame top, under the suction function of heat buoyancy and blower fan, be gathered in the coke guide dust hood, flue dust and Air mixing temperature are 160 ℃, enter mixing tank 18 by coke guide telescopic shaft 16, enter the collecting pipe that is provided with along body of heater by effuser telescopic shaft 17 again.
The discharging of the coke finishes, and closes coke guide automatic panel-turnover 15, opens combustion chamber automatic panel-turnover 13 and pusher side fire door simultaneously and collects sleeve pipe automatic panel-turnover 12.When beginning to coaling, both sides, 10 bottom, combustion chamber fire door telescopic shaft 5 is joined with coke oven furnace roof fire door (concerning making side dress coke oven firm by ramming) or dock (concerning coke oven is adorned on the top) with the side flange that adds coal hopper, begin to collect flammable raw gas, 600 ℃ of flammable raw gas of high temperature that come by coke furnace carbonization chamber enter combustion chamber 10 by fire door suction pipe 4, connect purified gas and light a fire automatically by the automatic ignition burner 7 of coal gas, be 850 ℃ by adjustable damper 6 adjusting air quantity control chamber temperatures and make flammable raw gas perfect combustion, the waste gas after the perfect combustion enters mixing tank 18 by combustion exhaust escape pipe 11.The pusher side fire door is collected air distribution sleeve pipe 8 above the coke oven door that reaches correspondence under the effect of hydraulically extensible bar 9, begin to collect flue gas and the air distribution that coke oven door overflows, and enter mixing tank 18 and mix with combustion exhaust, making mixed flue dust gas temperature is 210 ℃, enters the collecting pipe that is provided with along body of heater by effuser telescopic shaft 17 at last.
Self-forced type air-making-up pressure-regulating device has been installed on the collecting pipe.Mobilizable pressure regulation wind page or leaf 24 is installed on the air-making-up pressure-regulating device framework 23, pressure regulation counterweight bar 25 is arranged on the pressure regulation wind page or leaf 24.
Flue dust gas is behind the cyclonic separator dust-separating, in gas blower enters boiler, 1000 ℃ of temperature, fully burning under the condition of excess air factor 1.10, boiler waste gas after the burning is through heat exchange, through becoming the gas of cleaning behind electrostatic precipitation, the wet method sulphur removing and dust removing,, enter atmosphere again by chimney through induced draft fan.
In the process of the discharging of the coke, the flue dust that produces of the paroxysmal flue dust that produces and firedoor frame top, under the suction function of heat buoyancy and blower fan, be gathered in the coke guide dust hood, flue dust and Air mixing temperature are 170 ℃.
In the process of coalingging, 650 ℃ of flammable raw gas of high temperature that come by coke furnace carbonization chamber enter the combustion chamber, adjusting air quantity control chamber temperature is 875 ℃ makes flammable raw gas perfect combustion, flue gas that waste gas after burning and coke oven door are collected and air distribution, enter mixing tank and mix, mixed flue dust gas temperature is 220 ℃.
Collecting pipe flue dust gas in gas blower enters boiler, 1025 ℃ of temperature, fully burns under the condition of excess air factor 1.15 behind the cyclonic separator dust-separating.Other is with embodiment 1.
In the process of the discharging of the coke, the flue dust that produces of the paroxysmal flue dust that produces and firedoor frame top, under the suction function of heat buoyancy and blower fan, be gathered in the coke guide dust hood, flue dust and Air mixing temperature are 180 ℃.
In the process of coalingging, 700 ℃ of flammable raw gas of high temperature that come by coke furnace carbonization chamber enter the combustion chamber, adjusting air quantity control chamber temperature is 900 ℃ makes flammable raw gas perfect combustion, flue gas that waste gas after burning and coke oven door are collected and air distribution, enter mixing tank and mix, mixed flue dust gas temperature is 230 ℃.
Collecting pipe flue dust gas in gas blower enters boiler, 1050 ℃ of temperature, fully burns under the condition of excess air factor 1.20 behind the cyclonic separator dust-separating.Other is with embodiment 1.
In the process of the discharging of the coke, the flue dust that produces of the paroxysmal flue dust that produces and firedoor frame top, under the suction function of heat buoyancy and blower fan, be gathered in the coke guide dust hood, flue dust and Air mixing temperature are 190 ℃.
In the process of coalingging, 750 ℃ of flammable raw gas of high temperature that come by coke furnace carbonization chamber enter the combustion chamber, adjusting air quantity control chamber temperature is 925 ℃ makes flammable raw gas perfect combustion, flue gas that waste gas after burning and coke oven door are collected and air distribution, enter mixing tank and mix, mixed flue dust gas temperature is 240 ℃.
Collecting pipe flue dust gas in gas blower enters boiler, 1075 ℃ of temperature, fully burns under the condition of excess air factor 1.25 behind the cyclonic separator dust-separating.Other is with embodiment 1.
In the process of the discharging of the coke, the flue dust that produces of the paroxysmal flue dust that produces and firedoor frame top, under the suction function of heat buoyancy and blower fan, be gathered in the coke guide dust hood, flue dust and Air mixing temperature are 200 ℃.
In the process of coalingging, 800 ℃ of flammable raw gas of high temperature that come by coke furnace carbonization chamber enter the combustion chamber, adjusting air quantity control chamber temperature is 950 ℃ makes flammable raw gas perfect combustion, flue gas that waste gas after burning and coke oven door are collected and air distribution, enter mixing tank and mix, mixed flue dust gas temperature is 250 ℃.
Collecting pipe flue dust gas in gas blower enters boiler, 1100 ℃ of temperature, fully burns under the condition of excess air factor 1.30 behind the cyclonic separator dust-separating.Other is with embodiment 1.
The contrast of implementation result and prior art:
Technology of the present invention is compared with comparatively advanced ground station for dust removal dust collecting process now, has less investment, and operation energy consumption is low, takes up an area of advantages such as few.
Table 1 technology of the present invention and ground station for dust removal dust collecting process investment consumption are relatively
| Project | Ground station for dust removal technology | Dust collecting process of the present invention |
| Gross investment | More than 1,500 ten thousand yuan (by supporting 600,000 tons of/year burnt production capacities, down together) | 20% of about terrestrial station investment |
| Installed capacity | 650KW | 30KW (boiler fan is disregarded) |
| The utilization of heat | Use water quench | Introduce generating in the boiler |
| Steam consumption | 0.25t/h | Do not have |
| Water coolant | 18t/h | Do not have |
| Floor space | 800m 2 | Do not have |
| Worker's |
8 people (2 people/class) | Do not have |
Dust is introduced in the boiler and has been replaced original freezing air, has reduced preheating quantity, has utilized the heat of coke oven smoke, has saved the energy.The load of the dedusting in later stage, desulfurization facility does not obviously increase again simultaneously.Because dedusting, the desulfurization of boiler require generally than ground station for dust removal height.So dust removing effects meets or exceeds the dust removing effects of ground station for dust removal, indivedual indexs reach national grade one discharge standard.
Table 2 technology of the present invention and ground station for dust removal dust collecting process dust removing effects are relatively
Claims (4)
1, a kind of technology of utilizing boiler systems to carry out coke oven smoke eliminating dust removing is characterized in that comprising the steps:
(1) collects raw gas and flue dust
In the process of the discharging of the coke, the smoke catching car places the corresponding position, furnace roof top of coking chamber, the combustion chamber automatic panel-turnover and the pusher side fire door collection air distribution sleeve pipe automatic panel-turnover of smoke catching car are closed, the mouth that blocks burnt dust hood top of coke guide telescopic shaft and coke oven joins, the effuser telescopic shaft joins with the effuser suction inlet of band automatic panel-turnover, open the coke guide automatic panel-turnover, beginning to open the burnt fire door of surveying discharges of the coke, pushing machine is released red Jiao from coking chamber, coke falls in the quenching car railway carriage by leading burnt grid, the flue dust that produces of the paroxysmal flue dust that produces and firedoor frame top, under the suction function of heat buoyancy and blower fan, suck air in the collection process, flue dust and Air mixing temperature are 150-200 ℃, enter mixing tank by the coke guide telescopic shaft, enter the collecting pipe that is provided with along body of heater by the effuser telescopic shaft again;
The discharging of the coke finishes, and closes the coke guide automatic panel-turnover, opens combustion chamber automatic panel-turnover and pusher side fire door simultaneously and collects air distribution sleeve pipe automatic panel-turnover.In the process of coalingging, both sides, bottom, the combustion chamber fire door telescopic shaft and the coke oven furnace roof fire door of smoke catching car are joined, by the 600-800 ℃ of next combustion chamber internal combustion that the flammable raw gas of high temperature enters the smoke catching car of coke furnace carbonization chamber, controlling chamber temperature by the adjustable damper of regulating the lower end, combustion chamber is 850-950 ℃, hot waste gas after the burning mixes at the mixing tank of smoke catching car with the flue gas of being collected the collection of air distribution sleeve pipe by the pusher side fire door, because the pusher side fire door is collected the flue gas of air distribution sleeve pipe collection and is sucked air simultaneously, making mixed flue dust mixing temperature is 200-250 ℃, and mixed flue dust gas enters the collecting pipe that is provided with along body of heater by the effuser telescopic shaft;
(2) purifying treatment
Collecting pipe flue dust gas for stablizing gas blower preceding pipeline vacuum tightness, has been installed a cover self-forced type air-making-up pressure-regulating device at collecting pipe in gas blower enters boiler behind the cyclonic separator dust-separating; When vacuum tightness was high in the pipeline, fan blade was opened greatly, and the air distribution amount increases; Otherwise fan blade turns down, and the air distribution amount reduces; Thereby vacuum is 1-5kPa in the stable pipe;
Flue dust gas enters boiler at temperature 1000-1100 ℃, fully burning under the condition of excess air factor 1.1-1.3, the boiler waste gas after the burning are through heat exchange, again through becoming the gas of cleaning behind electrostatic precipitation, the wet method sulphur removing and dust removing, through induced draft fan, enter atmosphere by chimney.
2, the special-purpose smoke catching car of a kind of technology of utilizing boiler systems to carry out coke oven smoke eliminating dust removing as claimed in claim 1, it is characterized in that it is by support (1), walking steel wheel (2), motor (3), combustion chamber (10) and mixing tank (18) are formed, it is characterized in that support (1) is equipped with walking steel wheel (2) and motor (3), combustion chamber (10) and mixing tank (18) are installed above the support (1), respectively there is a fire door suction pipe (4) both sides, bottom, combustion chamber (10), there is stove fire door telescopic shaft (5) fire door suction pipe (4) lower end, automatic ignition burner of coal gas (7) and adjustable damper (6) have been installed in (10) lower end in the combustion chamber, top, combustion chamber (10) one side has combustion exhaust escape pipe (11) to communicate with mixing tank (18), and combustion chamber automatic panel-turnover (13) is installed in the combustion exhaust escape pipe (11); Mixing tank (18) top has coke guide telescopic shaft (16) and pusher side fire door to collect air distribution sleeve pipe (8), and coke guide automatic panel-turnover (15) is installed in the coke guide telescopic shaft (16).The pusher side fire door is collected pusher side fire door collection air distribution sleeve pipe automatic panel-turnover (12) is installed in the air distribution sleeve pipe (8); Effuser telescopic shaft (17) is arranged at mixing tank (18) bottom, and coke guide automatic panel-turnover (15) is installed in the coke guide telescopic shaft (16).Each telescopic shaft promotes, drags by hydraulically extensible bar (9).Safety has been installed at mixing tank (18) top unloads and puts manhole (14).
3, the special-purpose smoke catching car of a kind of technology of utilizing boiler systems to carry out coke oven smoke eliminating dust removing as claimed in claim 2, it is characterized in that described safety is unloaded puts manhole and is made up of safety manhole body (19), manhole plate (20), balancing weight (21) and gag lever post (22), safety is unloaded and is put manhole (14) gag lever post (22) is installed, be connected with manhole plate (20) on the gag lever post (22), balancing weight (21) is arranged on the manhole plate (20).
4, a kind of special-purpose self-forced type tonifying Qi of technology regulator that utilizes boiler systems to carry out coke oven smoke eliminating dust removing as claimed in claim 1, it is characterized in that it is made up of framework (23), pressure regulation fan blade (24) and pressure regulation counterweight bar (25), mobilizable pressure regulation wind page or leaf (24) is installed on air-making-up pressure-regulating device framework, pressure regulation counterweight bar (25) is arranged on the pressure regulation wind page or leaf (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101854644A CN101260304A (en) | 2007-12-21 | 2007-12-21 | Technique and device for removing dust of coke oven by boiler system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101854644A CN101260304A (en) | 2007-12-21 | 2007-12-21 | Technique and device for removing dust of coke oven by boiler system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101260304A true CN101260304A (en) | 2008-09-10 |
Family
ID=39961005
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101854644A Pending CN101260304A (en) | 2007-12-21 | 2007-12-21 | Technique and device for removing dust of coke oven by boiler system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101260304A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696358B (en) * | 2009-10-22 | 2012-09-05 | 山东兖煤凯达环保机械有限公司 | Combustion-supporting device of integrated smoke and dust eliminating truck and integrated smoke and dust eliminating truck |
| CN101864321B (en) * | 2009-11-25 | 2013-05-15 | 张建中 | Coke oven wet method dedusting station |
| CN108707466A (en) * | 2018-05-31 | 2018-10-26 | 武汉钢铁有限公司 | Coke oven coal-charging dust purification and recoverying and utilizing method |
| CN108753317A (en) * | 2018-05-31 | 2018-11-06 | 武汉钢铁有限公司 | Coke making process is cleaned based on what is coaling at a slow speed |
| CN109021991A (en) * | 2018-09-28 | 2018-12-18 | 中冶焦耐(大连)工程技术有限公司 | Totally-enclosed centralized collection and treatment method for coke oven smoke |
| CN111151089A (en) * | 2019-12-25 | 2020-05-15 | 太原重工股份有限公司 | Coke oven dust pelletizing system |
-
2007
- 2007-12-21 CN CNA2007101854644A patent/CN101260304A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101696358B (en) * | 2009-10-22 | 2012-09-05 | 山东兖煤凯达环保机械有限公司 | Combustion-supporting device of integrated smoke and dust eliminating truck and integrated smoke and dust eliminating truck |
| CN101864321B (en) * | 2009-11-25 | 2013-05-15 | 张建中 | Coke oven wet method dedusting station |
| CN108707466A (en) * | 2018-05-31 | 2018-10-26 | 武汉钢铁有限公司 | Coke oven coal-charging dust purification and recoverying and utilizing method |
| CN108753317A (en) * | 2018-05-31 | 2018-11-06 | 武汉钢铁有限公司 | Coke making process is cleaned based on what is coaling at a slow speed |
| CN109021991A (en) * | 2018-09-28 | 2018-12-18 | 中冶焦耐(大连)工程技术有限公司 | Totally-enclosed centralized collection and treatment method for coke oven smoke |
| CN111151089A (en) * | 2019-12-25 | 2020-05-15 | 太原重工股份有限公司 | Coke oven dust pelletizing system |
| CN111151089B (en) * | 2019-12-25 | 2022-03-29 | 太原重工股份有限公司 | Coke oven dust pelletizing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201395570Y (en) | Clean vertical heat recovery coke oven | |
| CN101539371B (en) | First flue gas dust removal and waste heat recovery system for electric stove | |
| CN101260304A (en) | Technique and device for removing dust of coke oven by boiler system | |
| CN104630405A (en) | Partition wall rotary kiln for ferroelectric and coke coproduction | |
| CN107447072A (en) | A kind of steelmaking converter flue gas dust collecting system | |
| CN102746859B (en) | Leakage-free coaling and coke pushing combined smoke purifying and recycling system and technology for coke oven | |
| CN206112970U (en) | Circulating fluidized bed boiler unit based on put out sediment technique futilely | |
| CN110746993A (en) | Coupling system and process of tamping coke oven charging soot treatment and coke oven flue gas purification | |
| CN203683571U (en) | Dry dedusting and energy-saving system | |
| CN208815054U (en) | Electric arc furnaces smoke processing system | |
| CN101104809A (en) | Coal feeding and coke extracting two-in-one earth station dust removing system for coke oven | |
| CN101893388B (en) | Electric furnace double dust collection and waste heat recovery system and method | |
| CN201565226U (en) | System for dedusting smoke discharged in smelting outside furnace | |
| CN210945666U (en) | Converter gas dry dedusting recovery system | |
| CN201441866U (en) | Dry dedusting plant for top-charging coke furnaces | |
| CN103322676A (en) | Biomass fuel hot blast device | |
| CN111321263A (en) | Blast furnace raw gas heating method and device | |
| CN117308623A (en) | Electric furnace waste heat recovery device and method | |
| CN212408642U (en) | Return ash control device of material returning device of circulating fluidized bed boiler | |
| CN201292341Y (en) | Coal-charging, coal-discharging two-in-one smoke collection purifier of coke burner | |
| CN210718691U (en) | Vertical cooling sensible heat recovery system for sinter and waste heat comprehensive utilization system thereof | |
| CN208815053U (en) | Scrap heating device and electric arc furnaces smoke processing system | |
| CN102914170A (en) | Device and method for performing hot air sintering by reusing sintering high-temperature flue gas | |
| RU2448144C2 (en) | Dry coke quenching apparatus | |
| CN202688267U (en) | Leakage-free smoke dust purifying and recycling treatment system for coke pushing and coal loading of coke oven |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20080910 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |