CN105330179B - Box burner shaft furnace - Google Patents
Box burner shaft furnace Download PDFInfo
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- CN105330179B CN105330179B CN201510873595.6A CN201510873595A CN105330179B CN 105330179 B CN105330179 B CN 105330179B CN 201510873595 A CN201510873595 A CN 201510873595A CN 105330179 B CN105330179 B CN 105330179B
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- fuel
- hydraulic
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- 239000000446 fuel Substances 0.000 claims abstract description 58
- 210000000038 chest Anatomy 0.000 claims abstract description 55
- 238000007599 discharging Methods 0.000 claims abstract description 36
- 238000002485 combustion reaction Methods 0.000 claims abstract description 33
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 19
- 239000000428 dust Substances 0.000 claims abstract description 9
- 230000000694 effects Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 39
- 238000001816 cooling Methods 0.000 claims description 20
- 239000011449 brick Substances 0.000 claims description 18
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 230000005611 electricity Effects 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- 239000002912 waste gas Substances 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 claims description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims description 2
- 239000003546 flue gas Substances 0.000 claims description 2
- 238000011068 loading method Methods 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- 206010030973 Oral discomfort Diseases 0.000 claims 1
- 238000001354 calcination Methods 0.000 abstract description 11
- 238000009826 distribution Methods 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000004449 solid propellant Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
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- Furnace Details (AREA)
Abstract
The present invention relates to a kind of box burner shaft furnace, device for discharging is sealed including kiln thorax, kiln top row device of air, kiln top sealing feeding device and kiln bottom, provided with least 2 layers box burner in kiln thorax, every layer of box burner includes the burner case that several horizontal parallels are arranged, and upper and lower two layers of burner case is staggered；Branched Fuel lance is provided with each burner case, each burner case is connected with outside combustion air conveyance conduit, and each Fuel lance and combustion air conveyance conduit is all provided with separate valve control.Present invention optimizes supply mode of the fuel in kiln thorax so that fuel is uniformly distributed on kiln thorax cross section, so as to improve the heat distribution uneven phenomenon in calcination process, advantageously reduces the height of shaft furnace, reduces the loss of kiln internal resistance；Kiln structure plus discharge method and exhaust mode are optimized simultaneously, and the uniformity and sealing for improving plus discharging improve exhaust effect, reduce dust emission, reach the purpose for improving product quality and energy-saving and emission-reduction.
Description
Technical field
The present invention relates to a kind of lump material calcining kiln, more particularly to a kind of box burner shaft furnace.
Background technology
Calcination process in the general single thorax shaft furnace of adverse current calcining, kiln thorax is：Material is moved from top to bottom, fuel combustion production
Raw high-temperature gas flows from bottom to top, the two countercurrent flow, reaches the purpose of calcining materials.
The fuel of solid fuel shaft furnace is usually, as the material being calcined is added in kiln together, to pass through preheating from kiln top
Band pre-heating temperature elevation gets to burning zone combustion heat release, and this process takes around about twenties hours.When there is material life
Burn and during burning problem, can only be adjusted by the material that controls subsequently add and the proportioning of fuel, the effect of regulation will pass through
It can just show after very long wait, and to reach good state, it is necessary to repeated multiple times adjustment, required is that the time is just longer, because
And both taken effort.
Fluid fuel shaft furnace, its fuel is usually to be fed from the periphery burner for being installed on burning zone side wall in kiln, due to thing
Expect the influence of the factors such as resistance, gas flowing and hot gas floating, high-temperature gas can not reach burning zone lower central position, cause
The position heat supply deficiency produces underburnt, in order to compensate this defect, can only increase burning zone height.Thus the problem of bringing is kiln
Body is too high to cause big drag losses, center and the heat distribution on periphery inequality, material calcining overlong time, causes product to give birth to burning
Seriously.In addition, plus discharging equipment and exhaust apparatus exist plus discharging is uneven, seal bad, cause dust from flying, environmental pollution tight
Weight, and cause product quality inequality, high energy consumption.
The content of the invention
The invention provides a kind of box burner shaft furnace, supply mode of the fuel in kiln thorax is optimized so that fuel exists
Kiln thorax is uniformly distributed on cross section, so as to improve the heat distribution uneven phenomenon in calcination process, advantageously reduces the height of shaft furnace
Degree, reduces the loss of kiln internal resistance；Kiln structure plus discharge method and exhaust mode are optimized simultaneously, and that improves plus discharge is uniform
Property and sealing, improve exhaust effect, reduce dust emission, to reach the dual purpose for improving product quality and energy-saving and emission-reduction.
In order to achieve the above object, the present invention is realized using following technical scheme：
Box burner shaft furnace, including kiln thorax, kiln top row device of air, kiln top sealing feeding device and kiln bottom sealing discharging dress
Put, be divided into preheating zone, burning zone and cooling zone from top to bottom along short transverse in kiln thorax；Provided with extremely in the kiln thorax of burning zone bottom
Few 2 layers of box burner, every layer of box burner includes the burner case that several horizontal parallels are arranged, and upper and lower two layers of burner case interlocks
Set；Branched Fuel lance is provided with each burner case, its fuel nozzle ports is uniformly arranged on burner bottom portion along its length；Often
Individual burner case is connected with outside combustion air conveyance conduit, and the burner bottom portion on the outside of each fuel nozzle ports is all provided with combustion air
Spout, each Fuel lance and combustion air conveyance conduit is all provided with separate valve control.
The Fuel lance is stretched into burner case from burner case both sides, and burner case both sides are all provided with combustion air inlet and outside
Combustion air conveyance conduit is connected；Circulating liquid cooling system is additionally provided with burner case.
The kiln top row device of air is the exhaust header for being arranged on kiln top inside and high discharge feed side, and the bottom surface of exhaust header is set
Air entry.
The kiln top sealing feeding device by stock chest, hydraulic stripper flashboard one, surge bin, hydraulic stripper flashboard two and
Distributing device is constituted；Stock chest connects 2 surge bins, and surge bin bottom sets multiple chutes, between stock chest and surge bin
If hydraulic stripper flashboard one, portion's hydraulic stripper flashboard two is set between surge bin and chute；Distributing device is set below chute.
The kiln bottom sealing device for discharging includes hydraulic pressure supporting plate discharging machine, top feed bin, the hydraulic stripper lock being sequentially connected
Plate three, bottom feed bin, hydraulic stripper flashboard four and electricity shake discharging machine；At the top of top feed bin by frame-type sealing supporting structure with
Kiln thorax bottom is connected, and hydraulic pressure supporting plate discharging machine is set in frame-type sealing supporting structure；Liquid is set between top feed bin and bottom feed bin
Pressure discharge flashboard three, bottom feed bin and electricity, which shake, sets hydraulic stripper flashboard four between discharging machine.
The cross section of the kiln thorax is the retangular section structure of foursquare arc transition.
The kiln lining of the kiln thorax draws brick structure, i.e. kiln shell inwall vertical welding T-steel using T-steel and T-steel is in kiln shell
Inside it is uniformly distributed, two lateral elongation ends of each T-steel are embedded in 2 blocks of adjacent lining bricks, and are passed through between upper and lower two layers of lining brick
The tongue and groove of itself is mutually twisted, and makes lining brick with forming an overall structure in kiln shell.
Compared with prior art, the beneficial effects of the invention are as follows：
1) supply mode of the fuel in kiln thorax is optimized so that fuel is uniformly distributed on kiln thorax cross section, so as to change
Heat distribution uneven phenomenon in kind calcination process, advantageously reduces the height of shaft furnace, improves product quality；
2) kiln structure plus discharge method and exhaust mode are optimized, the loss of kiln internal resistance is reduced, improves and add the equal of discharging
Even property and sealing, improve exhaust effect, so as to reduce dust emission, are conducive to energy-saving and emission-reduction, environmental protection.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the A-A sectional views in Fig. 1.(the box burner Fuel lance horizontal layout in upper strata)
Fig. 3 is the B-B sectional views in Fig. 2.(the box burner Fuel lance horizontal layout of lower floor)
Fig. 4 is the structural representation of burner case of the present invention.
In figure：1. the distributing device of 4. hydraulic stripper flashboard of stock chest 2. hydraulic stripper flashboard, one 3. surge bin 2 5.
6. it is vented the box hydraulic pressure of 9. Fuel lance of burner, 10. 11. top feed bin of hydraulic pressure supporting plate discharging machine 12. of 7. kiln thorax of header 8.
The electricity of 3 13. bottom feed bin of discharge shutter, 14. hydraulic stripper flashboard 4 15. combustion air inlet 17. of discharging machine 16. that shakes fires
Expect the circulating liquid cooling system of 18. combustion air spout of spout 19.
Embodiment
The embodiment to the present invention is described further below in conjunction with the accompanying drawings：
See Fig. 1, be the structural representation of the present invention.Box burner shaft furnace of the present invention, including kiln thorax 7, kiln top row gas
Device, kiln top sealing feeding device and kiln bottom sealing device for discharging, be divided into from top to bottom along short transverse in kiln thorax 7 preheating zone,
Burning zone and cooling zone；Provided with least 2 layers box burner 8 in the kiln thorax 7 of burning zone bottom, every layer of box burner 8 includes several
The burner case of horizontal parallel arrangement, and upper and lower two layers of burner case is staggered；As shown in figure 4, provided with branched in each burner case
Fuel lance 9, its fuel nozzle ports 17 are uniformly arranged on burner bottom portion along its length；Each burner case with outside combustion-supporting sky
Letter shoot road is connected, and the burner bottom portion in each outside of fuel nozzle ports 17 is all provided with combustion air spout 18, each Fuel lance 9
And combustion air conveyance conduit is all provided with separate valve control.
The Fuel lance 9 is stretched into burner case from burner case both sides, burner case both sides be all provided with combustion air inlet 16 with
Outside combustion air conveyance conduit connection；Circulating liquid cooling system 19 is additionally provided with burner case.
The kiln top row device of air is the exhaust header 6 for being arranged on kiln top inside and high discharge feed side, is vented the bottom surface of header 6
If air entry.
The kiln top sealing feeding device is by stock chest 1, hydraulic stripper flashboard 1, surge bin 3, hydraulic stripper flashboard
24 and distributing device 5 constitute；Stock chest 1 connects 2 surge bins 2, and the bottom of surge bin 2 sets multiple chutes, and stock chest 1 is with delaying
Hydraulic stripper flashboard 1 is set between slug groove 3, portion's hydraulic stripper flashboard 24 is set between surge bin 3 and chute；Under chute
Side sets distributing device 5.
Hydraulic pressure supporting plate discharging machine 10, top feed bin 11, the hydraulic pressure that the kiln bottom sealing device for discharging includes being sequentially connected are unloaded
Material flashboard 3 12, bottom feed bin 13, hydraulic stripper flashboard 4 14 and electricity shake discharging machine 15；The top of top feed bin 11 passes through frame-type
Sealing supporting structure is connected with the bottom of kiln thorax 7, and hydraulic pressure supporting plate discharging machine 10 is set in frame-type sealing supporting structure；Top feed bin 11
Set hydraulic stripper flashboard 3 12 between bottom feed bin 13, bottom feed bin 13 and electricity, which shake, sets hydraulic stripper flashboard between discharging machine 15
4 14.
The cross section of the kiln thorax 7 is the retangular section structure of foursquare arc transition.
The kiln lining of the kiln thorax 7 draws brick structure, i.e. kiln shell inwall vertical welding T-steel using T-steel and T-steel is in kiln shell
Inside it is uniformly distributed, two lateral elongation ends of each T-steel are embedded in 2 blocks of adjacent lining bricks, and are passed through between upper and lower two layers of lining brick
The tongue and groove of itself is mutually twisted, and makes lining brick with forming an overall structure in kiln shell.
(to avoid drawing chaotic, Fuel lance and combustion air conveyance conduit are only in side as shown in Figure 1, Figure 2 and Figure 3
Display), shaft furnace kiln thorax 7 is interior to be provided with two layers of box burner 8 for the heat needed for calcining materials are provided, and upper strata burner case and lower floor
Burner case is staggered, during Fuel lance 9 stretches into burner case from both sides, and it is defeated that afterbody connects external fuel by fuel delivery branch pipe
Send system；Burner case is also that combustion air enters in kiln thorax the transfer passage for participating in burning, upper and lower two layers of box burner 8 simultaneously
Independent fuel and combustion air distribution, induction system is respectively configured, the heating load of any region can be individually adjusted；Fuel,
The infeed amount of combustion air and cooling air is automatically controlled by quantitative control system.
In the present invention, kiln top row device of air is exhaust header 6, and the bottom surface of exhaust header 6 is provided with air entry, passes through pipe sideways
Road is connected with cleaner, for discharging kiln top waste gas.Kiln lining uses light thin wall structure, and draws brick structure true provided with T-shaped part
Bao Yaoqiang stabilization.In kiln shell vertical welding T-steel from the bottom to top, lining brick is processed into special shape, enables T-steel
Inside embedded lining brick, while can also be mutually twisted between upper strata lining brick and lower floor's lining brick by the bump slot structure of its own
Together, in the short transverse of kiln, lining brick and kiln shell one entirety of formation are made by the connection of T-steel.
The specific production process of the box burner shaft furnace of the present invention is as follows：
Material through precise and with release mesh sends into kiln top stock chest 1 by kiln front loading system, when in shaft furnace
When some feed point needs charging, the hydraulic stripper flashboard 1 of kiln top correspondence position is opened, by the buffering of material addition below
Hopper 3, the then closing of hydraulic stripper flashboard 1, the hydraulic stripper flashboard 24 of the lower section of surge bin 3 after charging is opened, by thing
Material is distributed into correspondence feed point in kiln by the automatic uniform of distributing device 5 below its chute, finally closes hydraulic stripper flashboard 24
Close, complete the process that once feeds；Above operating process is repeated according to addition programs, each group hydraulic stripper flashboard is switched successively
One 2 and hydraulic stripper flashboard 24, material is distributed into each feed point in kiln successively, realizes that continuous uniform feeds.Pass through correspondence liquid
The alternation switch of pressure discharge flashboard 1 and hydraulic stripper flashboard 24, can avoid outside air during charging from passing through kiln top charging system
The normal operation of shaft furnace is influenceed in into kiln, while exhaust smoke level and energy unnecessary caused by it also avoid because leaking out disappears
Consumption.
Material enters even drop down after kiln, sequentially passes through preheating zone, burning zone, cooling zone and is sintered into qualified finished product；
The bottom of shaft furnace burning zone is provided with branched Fuel lance 9 provided with least 2 layers box burner 8, and each in burner case；By only
Fuel is sent into every Fuel lance 9 by vertical fuel dispensing device, and every Fuel lance 9 has respective combustion range, according to
The size in the section of kiln thorax 7 determines the quantity of Fuel lance 9, branched Fuel lance 9 is evenly distributed in the whole section of kiln thorax 7
On；Combustion air is sent into from the both sides of burner case, is burnt after being mixed with fuel on material bed, cooling air is sent from shaft furnace bottom
Enter, be heated while cooling material process, participate in burning as secondary combustion-supporting air into burning zone；By quantitative, accurate
Ground is adjusted and control fuel quantity, combustion-supporting air quantity and cooling air volume, it is ensured that the uniform optimal efficiency of combustion of heat supply, is made
The temperature in the whole section of kiln thorax 7 is uniform, so as to ensure the burning quality of material.
The material calcined enter cooling zone after, the cooling air quantitatively given, being evenly distributed be cooled to 100 DEG C with
Under, top feed bin 11 is discharged into by hydraulic pressure supporting plate discharging machine 10；During discharging, hydraulic stripper flashboard 4 14 is closed first, hydraulic stripper
Flashboard 3 12 is opened, and material enters bottom feed bin 13, and then hydraulic stripper flashboard 3 12 is closed, 4 14 dozens, hydraulic stripper flashboard
Open, material is expelled from kiln by the electricity discharging machine 15 that shakes；The circulation of above discharge process is carried out, and realizes that continuous uniform discharges.Pass through hydraulic pressure
The alternation switch of discharge shutter 3 12 and hydraulic stripper flashboard 4 14, can avoid influenceing shaft furnace outside gas leakage kiln in kiln during discharging
Normal operation, leaked pollution environment while it also avoid dust.
The flue gas and material that burning is produced decompose the gas produced and flowed in the presence of induced-draft fan draft by burning zone
At the top of preheating zone, carried out with material after heat exchange, the exhaust header 6 that the relatively low waste gas of temperature is set above preheating zone is discharged,
After removing dust, the waste gas for meeting discharge standard is discharged into air by chimney by induced-draft fan from high-altitude.Exhaust header 6 is traversed in kiln thorax
On section, its bottom surface is provided with the air entry of reasonable Arrangement, is evenly distributed with the negative pressure for ensureing the whole section of kiln thorax 7, so as to protect
The air flow method for demonstrate,proving the section of kiln thorax 7 is uniform, it is kept best combustion effect and minimum fuel consumption, more effectively prevents kiln wall
Effect.
In shaft furnace of the present invention, kiln top be provided with can uniformly be vented and reduce dust emission exhaust apparatus and multiple spot it is equal
The sealing feeder of even cloth；In sealing device for discharging of the kiln bottom provided with energy continuous uniform discharging；Adopt burning zone to preheating zone
Micro-pressure operation is used with negative-pressure operation, cooling zone, is conducive to improving kiln condition, radiation loss is reduced, environmental protection improves material
Decomposition rate, promotes material to decompose completely, obtains high-quality calcining product.
Box burner shaft furnace of the present invention be applied in, the calcining of the lump material of big granularity, especially lime stone or white
Marble, can both use the gaseous fuel of liquid fuel and various calorific capacitys, can also use powdered solid fuel, adaptability
By force, thus there is a very wide application prospect.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should all be included within the scope of the present invention.
Claims (5)
1. box burner shaft furnace, it is characterised in that close including kiln thorax, kiln top row device of air, kiln top sealing feeding device and kiln bottom
Seal in device for discharging, kiln thorax and be divided into preheating zone, burning zone and cooling zone from top to bottom along short transverse；The kiln thorax of burning zone bottom
The interior burner case arranged provided with least 2 layers box burner, every layer of box burner including several horizontal parallels, and upper and lower two layers of burning
Mouth case is staggered；Branched Fuel lance is provided with each burner case, its fuel nozzle ports is uniformly arranged on burner along its length
Bottom portion；Each burner case is connected with outside combustion air conveyance conduit, and the burner bottom portion on the outside of each fuel nozzle ports is equal
If combustion air spout, each Fuel lance and combustion air conveyance conduit is all provided with separate valve control；
The kiln top sealing feeding device is by stock chest, hydraulic stripper flashboard one, surge bin, hydraulic stripper flashboard two and cloth
Device is constituted；Stock chest connects 2 surge bins, and surge bin bottom sets multiple chutes, liquid is set between stock chest and surge bin
Pressure discharge flashboard one, sets portion's hydraulic stripper flashboard two between surge bin and chute；Distributing device is set below chute；
Hydraulic pressure supporting plate discharging machine that kiln bottom sealing device for discharging includes being sequentially connected, top feed bin, hydraulic stripper flashboard three,
Bottom feed bin, hydraulic stripper flashboard four and electricity shake discharging machine；Pass through frame-type sealing supporting structure and kiln thorax at the top of the feed bin of top
Bottom is connected, and hydraulic pressure supporting plate discharging machine is set in frame-type sealing supporting structure；Hydraulic pressure is set between top feed bin and bottom feed bin to unload
Expect flashboard three, bottom feed bin and electricity, which shake, sets hydraulic stripper flashboard four between discharging machine；
The specific production process of box burner shaft furnace is as follows：
Material through precise and with release mesh sends into kiln top stock chest by kiln front loading system, when some adds in shaft furnace
When shots need charging, the hydraulic stripper flashboard one of kiln top correspondence position is opened, and material is added into surge bin below, so
Hydraulic stripper flashboard one is closed afterwards, and the hydraulic stripper flashboard two below the surge bin after charging is opened, and material is slipped by it
Correspondence feed point in kiln is distributed into distributing device automatic uniform below groove, finally hydraulic stripper flashboard two is closed, and is completed once
Charging process；Above operating process is repeated according to addition programs, switchs each group hydraulic stripper flashboard one successively and hydraulic pressure is unloaded
Expect flashboard two, material is distributed into each feed point in kiln successively, realize that continuous uniform feeds；Pass through correspondence hydraulic stripper flashboard one
With the alternation switch of hydraulic stripper flashboard two, outside air during charging can be avoided to be erected by kiln top charging system into influence in kiln
The normal operation of kiln, while exhaust smoke level unnecessary caused by it also avoid because leaking out and energy expenditure；
Material enters even drop down after kiln, sequentially passes through preheating zone, burning zone, cooling zone and is sintered into qualified finished product；In shaft furnace
The bottom of burning zone is provided with branched Fuel lance provided with least 2 layers box burner, and each in burner case；Pass through independent combustion
Fuel is sent into every Fuel lance by material distributor, and every Fuel lance has respective combustion range, according to kiln thorax section
Size determine the quantity of Fuel lance, branched Fuel lance is evenly distributed on whole kiln thorax section；Combustion air from
The both sides feeding of burner case, burns, cooling air is sent into from shaft furnace bottom on material bed after being mixed with fuel, cools down material process
While be heated, into burning zone be used as secondary combustion-supporting air participate in burning；By quantifying, accurately adjust and control fuel
Amount, combustion-supporting air quantity and cooling air volume, it is ensured that the uniform optimal efficiency of combustion of heat supply, make the temperature in whole kiln thorax section
Degree is uniform, so as to ensure the burning quality of material；
The material calcined enters after cooling zone, and the cooling air quantitatively given, being evenly distributed is cooled to less than 100 DEG C, by
Hydraulic pressure supporting plate discharging machine is discharged into top feed bin；During discharging, hydraulic stripper flashboard four is closed first, and hydraulic stripper flashboard three is opened,
Material enter bottom feed bin, then hydraulic stripper flashboard three close, hydraulic stripper flashboard four is opened, material by electricity shake discharging machine arrange
Outside kiln discharge；The circulation of above discharge process is carried out, and realizes that continuous uniform discharges；Pass through hydraulic stripper flashboard three and hydraulic stripper flashboard
Four alternation switch, can avoid influenceing the normal operation of shaft furnace outside gas leakage kiln in kiln during discharging, while it also avoid dust
Leak pollution environment；
The flue gas and material that burning is produced decompose the gas produced and flow to preheating by burning zone in the presence of induced-draft fan draft
Band top, is carried out after heat exchange with material, the exhaust header discharge that the relatively low waste gas of temperature is set above preheating zone, removing dust
Afterwards, the waste gas for meeting discharge standard is discharged into air by chimney by induced-draft fan from high-altitude；Exhaust header is traversed on kiln thorax section,
Its bottom surface is provided with the air entry of reasonable Arrangement, is evenly distributed with the negative pressure for ensureing whole kiln thorax section, so as to ensure that kiln thorax is cut
The air flow method in face is uniform, it is kept best combustion effect and minimum fuel consumption, more effectively prevents kiln wall effect.
2. box burner shaft furnace according to claim 1, it is characterised in that the Fuel lance is stretched into from burner case both sides
In burner case, burner case both sides are all provided with combustion air inlet and are connected with outside combustion air conveyance conduit；It is additionally provided with burner case
Circulating liquid cooling system.
3. box burner shaft furnace according to claim 1, it is characterised in that the kiln top row device of air is to be arranged on kiln top
The exhaust header of internal and high discharge feed side, the bottom surface of exhaust header sets air entry.
4. box burner shaft furnace according to claim 1, it is characterised in that the cross section of the kiln thorax is foursquare arc mistake
The retangular section structure crossed.
5. box burner shaft furnace according to claim 1, it is characterised in that the kiln lining of the kiln thorax draws brick using T-steel
Structure, i.e. kiln shell inwall vertical welding T-steel and T-steel is uniformly distributed in kiln shell, two lateral elongation ends of each T-steel are embedding
Enter in 2 blocks of adjacent lining bricks, and be mutually twisted between upper and lower two layers of lining brick by the tongue and groove of itself, made in lining brick and kiln shell
Form an overall structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510873595.6A CN105330179B (en) | 2015-12-02 | 2015-12-02 | Box burner shaft furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510873595.6A CN105330179B (en) | 2015-12-02 | 2015-12-02 | Box burner shaft furnace |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105330179A CN105330179A (en) | 2016-02-17 |
| CN105330179B true CN105330179B (en) | 2017-09-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510873595.6A Active CN105330179B (en) | 2015-12-02 | 2015-12-02 | Box burner shaft furnace |
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| Country | Link |
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| CN (1) | CN105330179B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091004B (en) * | 2016-06-14 | 2018-09-25 | 广东韶钢松山股份有限公司 | A kind of gas combusting limestone kiln ignition process and dedicated unit |
| CN106495508A (en) * | 2016-10-13 | 2017-03-15 | 辽宁劲达华杰工程技术有限公司 | A kind of environmental protection and energy saving light calcined magnesia calcining kiln |
| CN109574520A (en) * | 2019-01-16 | 2019-04-05 | 唐山神鹰富新环保科技有限公司 | Two sections of sealing feeders and method on a kind of double-hearth lime kiln kiln top |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10152353A (en) * | 1996-11-18 | 1998-06-09 | Kawasaki Heavy Ind Ltd | Burning apparatus for powdery granular raw material and its operation |
| CN2490160Y (en) * | 2001-06-06 | 2002-05-08 | 中国冶金建设集团鞍山焦化耐火材料设计研究总院 | Rectangular gas burning lime shaft kiln with circular angle |
| EP1669709A1 (en) * | 2004-12-13 | 2006-06-14 | Terruzzi Fercalx S.p.A. | Beams for kilns processing lumpy materials |
| CN201876136U (en) * | 2010-11-22 | 2011-06-22 | 中冶焦耐(大连)工程技术有限公司 | T-shaped brick-holding furnace lining |
| CN202063836U (en) * | 2011-05-30 | 2011-12-07 | 石家庄市新华工业炉有限公司 | Beam type lime kiln |
| CN205223019U (en) * | 2015-12-02 | 2016-05-11 | 中冶焦耐工程技术有限公司 | Box nozzle shaft kiln |
-
2015
- 2015-12-02 CN CN201510873595.6A patent/CN105330179B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10152353A (en) * | 1996-11-18 | 1998-06-09 | Kawasaki Heavy Ind Ltd | Burning apparatus for powdery granular raw material and its operation |
| CN2490160Y (en) * | 2001-06-06 | 2002-05-08 | 中国冶金建设集团鞍山焦化耐火材料设计研究总院 | Rectangular gas burning lime shaft kiln with circular angle |
| EP1669709A1 (en) * | 2004-12-13 | 2006-06-14 | Terruzzi Fercalx S.p.A. | Beams for kilns processing lumpy materials |
| CN201876136U (en) * | 2010-11-22 | 2011-06-22 | 中冶焦耐(大连)工程技术有限公司 | T-shaped brick-holding furnace lining |
| CN202063836U (en) * | 2011-05-30 | 2011-12-07 | 石家庄市新华工业炉有限公司 | Beam type lime kiln |
| CN205223019U (en) * | 2015-12-02 | 2016-05-11 | 中冶焦耐工程技术有限公司 | Box nozzle shaft kiln |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105330179A (en) | 2016-02-17 |
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Effective date of registration: 20180726 Address after: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Patentee after: ACRE COKING & REFRACTORY ENGINEERING CONSULTING CORPORATION (DALIAN), MCC Address before: 116085 128 high energy street, Qixian Ling high tech Industrial Park, Dalian, Liaoning Patentee before: ACRE COKING & REFRACTORY ENGINEERING CONSULTING CORPORATION, MCC |
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Denomination of invention: Box burner shaft kiln Effective date of registration: 20211203 Granted publication date: 20170919 Pledgee: Dalian Branch of Bank of Communications Co.,Ltd. Pledgor: ACRE COKING & REFRACTORY ENGINEERING CONSULTING CORPORATION (DALIAN), MCC Registration number: Y2021210000090 |
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Granted publication date: 20170919 Pledgee: Dalian Branch of Bank of Communications Co.,Ltd. Pledgor: ACRE COKING & REFRACTORY ENGINEERING CONSULTING CORPORATION (DALIAN), MCC Registration number: Y2021210000090 |