CN205874298U - Coke furnace ascension pipe - Google Patents
Coke furnace ascension pipe Download PDFInfo
- Publication number
- CN205874298U CN205874298U CN201620850214.2U CN201620850214U CN205874298U CN 205874298 U CN205874298 U CN 205874298U CN 201620850214 U CN201620850214 U CN 201620850214U CN 205874298 U CN205874298 U CN 205874298U
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- China
- Prior art keywords
- coke oven
- water
- tedge
- cooling wall
- wall
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- 239000000571 coke Substances 0.000 title claims abstract description 180
- 238000001816 cooling Methods 0.000 claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000000919 ceramic Substances 0.000 claims abstract description 4
- 238000009834 vaporization Methods 0.000 claims description 21
- 230000008016 vaporization Effects 0.000 claims description 21
- 229920006395 saturated elastomer Polymers 0.000 claims description 15
- 238000004939 coking Methods 0.000 abstract description 43
- 238000004064 recycling Methods 0.000 abstract description 8
- 238000010521 absorption reaction Methods 0.000 abstract description 2
- 239000011248 coating agent Substances 0.000 abstract description 2
- 238000000576 coating method Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 2
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 96
- 239000003245 coal Substances 0.000 description 17
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 239000002918 waste heat Substances 0.000 description 9
- 238000005524 ceramic coating Methods 0.000 description 8
- 238000011084 recovery Methods 0.000 description 8
- 239000002699 waste material Substances 0.000 description 8
- 229910021529 ammonia Inorganic materials 0.000 description 7
- 238000009413 insulation Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 239000003034 coal gas Substances 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 5
- 238000005235 decoking Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000002086 nanomaterial Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000011490 mineral wool Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 239000002103 nanocoating Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 238000000197 pyrolysis Methods 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 241000220317 Rosa Species 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000010257 thawing 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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Coke Industry (AREA)
Abstract
The utility model discloses a coke furnace ascension pipe, include: tedge body, tedge body both ends are equipped with the flange, and the tedge body adopts the cover tubular construction, and tedge outer tube and tedge inner tube is established including the cover to the cover tubular construction, and tedge outer tube, tedge inner tube and both ends flange enclose a sleeve pipe jointly and hold the chamber together, the sleeve pipe holds the intracavity and is equipped with the water -cooling wall, and the water -cooling wall includes and water -cooling wall inner wall and water -cooling wall outer wall are the water -cooling wall inner chamber between water -cooling wall inner wall and the water -cooling wall outer wall, and water -cooling wall outer wall lower part is equipped with the water inlet pipe who communicates with the water -cooling wall inner chamber, and upper portion is equipped with the play steam pipe mouth that communicates with the water -cooling wall inner chamber, the internal surface of tedge inner tube scribbles high temperature resistant nano -ceramics coating, the upper end of tedge body is equipped with the point for measuring temperature mouth of pipe, and the lower extreme is equipped with down the point for measuring temperature mouth of pipe. The utility model discloses a coke furnace ascension pipe has realized that the effective recycling of high temperature raw coke oven gas used heat utilizes, solve the difficult problem of the tar in the raw coke oven gas in tedge inner wall absorption wall built -up, coking, prolonged the life -span.
Description
Technical field
This utility model relates to coking Thermal Equipment field, is specifically related to a kind of coke oven coke oven uprising tube being applied to coke oven.
Background technology
The industrial process such as steel-making metallurgy, ceramic sintering, METAL HEATING PROCESS, typically can not directly use raw coal combustion to add
Heat, but first by raw coal through refining, slough the tar in raw coal, become the coke containing scrubbed gas combustible component, be used further to
Industry heating.Being referred to as coke oven with the kiln used by raw coal refining coke, refining process is raw coal pyrolysis and combustion in coke oven
Slough tar, and until the technical process that takes off completely of tar.Decoking combustion process is discharged the raw coal of substantial amounts of complicated component and is released
The high-temperature flue gas put, is called raw coke oven gas, and the device that raw coke oven gas is drawn in coke oven is referred to as tedge, and tedge is mounted in
Coke oven top is for discharging the tubular metal auxiliary device of raw coke oven gas.Raw coke oven gas puts thermogenetic air heat when raw coal combustion
Under expanding drive power effect, escape continually from pressures inside, be pooled to main pipeline by tedge ascension, ammonia cooling,
Raw coke oven gas tank of restoring waits that coking processes.Raw coke oven gas is purified to be processed with coking, and the coke-stove gas obtained is high-grade fuel,
To naphthalene etc. be fat coal chemical products, so, process of coking reclaim raw coke oven gas be very important technical process.
The raw coal the highest coking temperature in coke oven controls below 1050 DEG C.Raw coal when 350-480 DEG C, macromole quilt
Pyrolysis, starts to escape coal gas gas-like phase thing and tar liquid phase thing；When 450-550 DEG C, it is that master analyses in a large number with gas-phase product with liquid phase
Go out；When 700-1000 DEG C, the most to the greatest extent, decoking completes liquid phase thing, and coke is formed, and remains scrubbed gas imflammable gas in coke
Composition, it may be assumed that the technique from raw coal to coking terminates.If continuation heats up, coke is just carbonized, and imflammable gas ease is the most certainly
Combustion, coke becomes cinder.Tar in raw coke oven gas is the liquid state colloid of complicated component, less than critical coking temperature that is 350 DEG C
Occur time following that volume concentration, absorption, at body surface, are gradually gathered into hard bulk, referred to as coking.
The basic structure of existing coke oven coke oven uprising tube, as shown in Figure 4, including main body steel pipe 21, as tedge body, main body
Steel pipe be respectively arranged at two ends with flange 24, the outer surface at main body steel pipe is provided with asbestos heat-insulation layer 23, at the interior table of main body steel pipe
Face is lined with the refractory lining 22 that clay class refractory brick is built into, and after sticking refractory lining inside tedge, effective internal diameter of tedge is
400mm.The effect isolating tar is played in the protective effect of refractory lining, prevents the tar in raw coke oven gas former with the ferrum of steel pipe
Sub-chemical combination produces graphite reaction, causes metal tube to corrode；The insulation effect of refractory lining plays decoking effect, prevents raw gas temperature
When less than 350 DEG C, tar just adsorbs on refractory lining, causes raw coke oven gas ease except not smooth, blocks raw coke oven gas discharge.
But, the coke oven coke oven uprising tube of above-mentioned existing structure there is problems in that
(1), high temperature raw coke oven gas used heat directly discharges, not by effective recycling.Raw coke oven gas is higher than 350 DEG C of anti-coking temperature
More than Du, the heat energy accounting for coking heat release about 30% all becomes used heat, is i.e. equivalent to coal power generation ability per ton and is
During 3000kwh, there is 1000kwh electricity to become used heat and " tried by hook to seek " discarded；Partial heat energy is diffused into sky with tedge outer wall
In, outer wall maximum temperature reaches 450-500 DEG C, minimum temperature 250-300 DEG C；Partial heat energy collects by ammonia chilling with raw coke oven gas
Lower the temperature and disappear.
(2), easily coking in tedge, and be difficult to control.Owing to this tedge is a kind of simple chimney flue type knot
Structure, the most passive protection anti-coking refractory lining, refractory lining rough surface easily make tar adsorb wall built-up, even if high temperature burn but
Still vestige is left, and cumulative, form the hard block tar being difficult to clear up；And the refractory lining of tedge is at tedge
The mode of employing refractory brick marshalling in pipe, therefore its lifetime is shorter, general only 1 year, needs tedge of annual renewal, more
New refractory brick marshalling；In pipe, coking occurs often, but is difficult to discover, and does not control the technical measures of coking, it is desirable to have experience
Operator, by observing the hole of coalingging of coking furnace roof, observation port, when finding that raw coke oven gas escapes in a large number, are then judged as tedge
Coke heavy is blocked, typically takes to adjust fire burning decoking measure, then need to replace with riser after coke heavy after coking；Due to
Operating mode is severe, and it is highly difficult that tedge processes coking.
(3), existing tedge after refractory lining is sticked in inside, effective internal diameter of tedge is 400mm, this size from
Meeting tedge in theory under conditions of height insulation, not taking heat, do not lower the temperature, raw coke oven gas is pressed with 0.3-1.0m/s ascension speed
Laminar flow form passes through tedge；But when coal (i.e. bituminous coal) coking that use coke content is bigger, all there is waste coal in each stove
Gas have little time from tedge escape, and from the hole of coalingging of oven top of coke oven, observation port escape, even need to be opened manually on tedge
Side bell, by band fire raw coke oven gas to " my god " discharge and pressure release, otherwise can because of raw coke oven gas escape not in time, coaling hole or
Observation port catching fire, even results in coking chamber " bombing bore " accident.
(4), in existing tedge, the fluid state of raw coke oven gas is laminar condition, it may be assumed that raw coke oven gas escapes the most in order
Go out.When laminar condition makes raw coke oven gas arrive bridge tube, internal and external temperature is inconsistent, presses close to the outer layer famine coal of tedge internal refractory lining
The temperature of gas, less than the temperature of the internal layer raw coke oven gas of tedge center, and the temperature difference averagely up to 150 DEG C.This temperature difference
Existing, the Waste Heat Recovery of raw coke oven gas is produced following unfavorable factor: one is, raw coke oven gas Waste Heat Recovery amount is incomplete, about 40-
The used heat of 60% occupies the center of raw coke oven gas air-flow and is not recovered or is fully reclaimed；Two are, to raw coke oven gas cooling
Spray ammonia vol is not lowered to the minimum flow that can realize.
Summary of the invention
In view of this, technical problem to be solved in the utility model is: provide the coke oven coke oven uprising tube that a kind of structure is improved,
So that effective recycling high temperature raw coke oven gas used heat, reduce environment temperature, improve work condition environment.
For solving above-mentioned technical problem, the technical solution of the utility model is: coke oven coke oven uprising tube, including: tedge body,
The two ends of described tedge body are respectively arranged with flange, and described tedge body uses sleeve structure, described sleeve structure bag
Include tedge outer tube and the tedge inner tube being enclosed within described tedge outer tube, described tedge outer tube, described tedge inner tube,
Described flange crosses sleeve pipe cavity volume jointly；Water-cooling wall, described water-cooling wall is arranged in described sleeve pipe cavity volume, and described water-cooling wall includes
Water-cooling wall inwall and water-cooling wall outer wall, be water-cooling wall inner chamber between described water-cooling wall inwall and described water-cooling wall outer wall, described water
The bottom of cold wall outer wall is provided with and the water inlet pipe mouth of described water-cooling wall inner space, and the top of described water-cooling wall outer wall is provided with and institute
State the steam outlet pipe mouth of water-cooling wall inner space.
Coke oven coke oven uprising tube of the present utility model, owing to its tedge body uses by pipe box in tedge outer tube and tedge
It is located at the sleeve structure formed together, in sleeve pipe cavity volume, is provided with water-cooling wall, using water for medium as the load reclaiming raw coke oven gas used heat
Body, the water water inlet pipe mouth from water-cooling wall outer wall bottom enters water-cooling wall inner chamber；High temperature raw coke oven gas rose in tedge inner tube
The tedge inner tube generation heat exchange of heat exchange, the water in water-cooling wall inner chamber and high temperature occurs with it in journey, and water is heated, vapour
Changing, become superheated steam, finally the steam outlet pipe mouth from water-cooling wall outer wall top is derived, and the superheated steam prepared can enter follow-up
Used heat reutilization system, be used for generating electricity or heating etc., it is achieved that the effective recycling of high temperature raw coke oven gas used heat, meanwhile,
Reduce environment temperature, improve work condition environment.
In place of being below the multinomial Optimal improvements to this utility model coke oven coke oven uprising tube:
Wherein, the inner surface of described tedge inner tube scribbles high-temperature resistant nano ceramic coating.Nano material consistency is high,
Inner surface in tedge inner tube coats after high-temperature resistant nano ceramic coating, and tedge inwall keeps the consistency of height, bright and clean
Degree, flatness, make the tar in raw coke oven gas can not adsorb wall built-up on tedge inwall, it is to avoid coking；Nano material adhesive force
High, therefore be difficult to occur nano coating crackle, burst, come off, and existing heat preservation property, there is again extremely strong isolation characteristic, it is ensured that
The tar of raw coke oven gas does not produce chemical combination with the iron atom of steel pipe, and protection steel pipe is not corroded, and increases the service life.
Wherein, it is interior inner liner between described water-cooling wall inwall and described tedge inner tube, described water-cooling wall outer wall and institute
State between tedge outer tube as outer inner liner.The setting of interior inner liner, can avoid the cold-water wall of low temperature and the raw coke oven gas of high temperature
Formed directly contact cooling interface, it is to avoid the excessive temperature difference and cause less than coking critical point temperature, it is to avoid cause coking to endanger
Evil, it is ensured that will not coking while Waste Heat Recovery；The setting of outer inner liner, not only can play insulation effect to water-cooling wall, anti-
Sealing cold wall upwards riser outer tube dispels the heat, it is ensured that the high efficiente callback of raw coke oven gas used heat, plays again the heat preventing reclaiming and dissipates to week
Collarette border, has reached reduction environment temperature, improves work condition environment purpose.
Wherein, described water-cooling wall includes the high-temperature-hot-water section being connected, saturated vaporization section and superheated steam section from bottom to top.
Wherein, described water-cooling wall inner chamber is provided with flow-guiding structure.The setting of flow-guiding structure, makes the fluid in water-cooling wall inner chamber
Disturbance, increases heat transfer effect.
Wherein, described flow-guiding structure is to include: is positioned at the current deflector of described high-temperature-hot-water section, is positioned at described saturated vapor
Change the vaporization deflector of section and be positioned at the steam diversion plate of described superheated steam section.
Wherein, described current deflector, described vaporization deflector, described steam diversion plate are wholely set, helically water conservancy diversion
Structure.
Wherein, the pitch of described current deflector, the pitch of described vaporization deflector, the pitch of described steam diversion plate depend on
Secondary increase.Fluid resistance can be reduced, increase the coefficient of heat transfer.
Wherein, the upper end of described tedge body is provided with the point for measuring temperature mouth of pipe, and the lower end of described tedge body is provided with down
The point for measuring temperature mouth of pipe.Respectively after the upper point for measuring temperature mouth of pipe and the lower point for measuring temperature mouth of pipe arrange the temperature element being connected with control system, burnt
In stove running, temperature element detects the internal raw gas temperature of tedge in real time, records raw gas temperature higher than critical coking
During temperature, by the high-temperature residual heat of the circulating water reclamation raw coke oven gas of water-cooling wall inner chamber, and the temperature controlling tedge is not higher than 600
DEG C, the problem avoiding the fastener for connection weld seam of tedge that high temperature fracture occurs can be played；Record raw gas temperature close to critical
During coking temperature, control system turns down rapidly the flow of recirculated water, flow velocity, can promote rapidly the temperature of raw coke oven gas in tedge
Degree, it is to avoid coking；Accidental, moment coking once occurs, coking can be melted rapidly after higher than 400 DEG C.
Wherein, the internal diameter of described coke oven coke oven uprising tube is 450mm～500mm.After expanding the internal diameter of tedge, on the one hand it is,
The resistance that raw coke oven gas rises can be reduced, shorten the time that raw coke oven gas escapes in tedge, it is ensured that waste coal while Waste Heat Recovery
Gas will not coking；On the other hand, raw coke oven gas gas flow shape in tedge can be changed, laminar flow become turbulent flow, turbulent flow phenomenon
Raw coke oven gas is made to produce vortex inside tedge and seethe, simultaneously tedge liner high-temperature resistant nano pottery in waste heat recovery process
Coating is on the low side with the temperature at the interface of the raw coke oven gas lowered the temperature, and has promoted the raw coke oven gas of different temperatures to form air-flow group, air-flow group
Density variation forms cyclone, and cyclone promotes raw coke oven gas ectonexine to be sufficiently mixed further, finally makes by tedge any transversal
The section temperature of the raw coke oven gas in face is basically identical, makes raw coke oven gas waste thermal energy farthest reclaim, and reduces and lowers the temperature to raw coke oven gas
Ammonia volume.
In sum, after have employed technique scheme, coke oven coke oven uprising tube of the present utility model, by arranging water-cooling wall,
Achieve the effective recycling of high temperature raw coke oven gas used heat；By waste in arranging high-temperature resistant nano ceramic coating and controlling tedge
Gas temperature, the tar solved in raw coke oven gas adsorbs wall built-up, a difficult problem for coking at tedge inwall, extends making of tedge
Use the life-span；After the internal diameter dilatation of tedge, reduce cooling to raw coke oven gas ammonia volume, eradicated raw coke oven gas from coaling hole and
Observation port is escaped or the problem of artificial aerofluxus, provides guarantee for safety in production.
Accompanying drawing explanation
Fig. 1 is the coke oven coke oven uprising tube contour structures schematic diagram of this utility model embodiment；
Fig. 2 is longitudinal sectional structure schematic diagram of Fig. 1；
Fig. 3 is the horizontal sectional structure schematic diagram of Fig. 1；
Fig. 4 is the sectional structure schematic diagram of existing coke oven coke oven uprising tube；
In figure: 1, this utility model coke oven coke oven uprising tube；1-1, Flange joint fixed-use bolt hole；1-2, flange；1-3, on
Riser outer tube；1-4, outer inner liner；1-5, water-cooling wall outer wall；1-6, water-cooling wall inner chamber；1-7, water-cooling wall inwall；1-8, interior airtight
Layer；1-9, tedge inner tube；1-10, high-temperature resistant nano ceramic coating；1-11, water inlet pipe mouth；1-12, current deflector；1-13、
Vaporization deflector；1-14, steam diversion plate；1-15, steam outlet pipe mouth；1-16, the lower point for measuring temperature mouth of pipe；1-17, the upper point for measuring temperature mouth of pipe；
1-18, rock wool base；D, coke oven coke oven uprising tube internal diameter；H, coke oven coke oven uprising tube height；H1, high-temperature-hot-water section；H2, saturated vaporization section；
H3, superheated steam section；
2, existing coke oven coke oven uprising tube；21, main body steel pipe；22, refractory lining；23, asbestos heat-insulation layer；24, flange.
Detailed description of the invention
Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is done nonrestrictive detailed description.
Jointly shown with Fig. 3 as shown in Figure 1, Figure 2, coke oven coke oven uprising tube 1 of the present utility model includes: tedge body, is rising
The two ends of pipe body are respectively arranged with flange 1-2, are provided with Flange joint fixed-use bolt hole 1-1 on flange 1-2；Wherein,
Tedge body uses sleeve structure, and this sleeve structure includes tedge outer tube 1-3 and the rising being enclosed within tedge outer tube 1-3
Pipe inner tube 1-9, further, the inner surface in tedge inner tube 1-9 scribbles high-temperature resistant nano ceramic coating 1-10, at tedge
The outer surface of outer tube 1-3 scribbles antirust coat, the flange 1-2 at tedge outer tube 1-3, tedge inner tube 1-9 and two ends jointly enclose
Go out sleeve pipe cavity volume；Being provided with the water-cooling wall of stainless steel in sleeve pipe cavity volume, this water-cooling wall includes water-cooling wall inwall 1-7 and water
Cold wall outer wall 1-5, is interior inner liner 1-8 between water-cooling wall inwall 1-7 and tedge inner tube 1-9, water-cooling wall outer wall 1-5 and rising
It is outer inner liner 1-4 between pipe outer tube 1-3, is water-cooling wall inner chamber 1-6 between water-cooling wall inwall 1-7 and water-cooling wall outer wall 1-5,
The bottom of water-cooling wall outer wall 1-5 is provided with the water inlet pipe mouth 1-11 connected with water-cooling wall inner chamber 1-6, upper at water-cooling wall outer wall 1-5
Portion is provided with the steam outlet pipe mouth 1-15 connected with water-cooling wall inner chamber 1-6；The upper surface being positioned at lower flange 1-2 in sleeve pipe cavity volume sets
Having rock wool base 1-18, the bottom support of water-cooling wall is on rock wool base 1-18.Further, the upper end at tedge body sets
There is upper point for measuring temperature mouth of pipe 1-17, be provided with lower point for measuring temperature mouth of pipe 1-16 in the lower end of tedge body.
Wherein, the high temperature strength of above-mentioned high-temperature resistant nano ceramic coating 1-10 is 1450 DEG C, meets coke oven temperature control 1050
The needs of DEG C coking temperature；Nano material consistency is high, and the inner surface in tedge inner tube coats high-temperature resistant nano pottery and is coated with
After Ceng, tedge inwall keeps the consistency of height, fineness, flatness, makes the tar in raw coke oven gas can not be in tedge
Wall built-up is adsorbed, it is to avoid coking on wall；Nano material adhesive force is high, therefore is difficult to occur nano coating crackle, bursts, comes off, and
Existing heat preservation property, has again extremely strong isolation characteristic, it is ensured that the tar of raw coke oven gas does not produces chemical combination with the iron atom of steel pipe,
Protection steel pipe is not corroded, and increases the service life.
Wherein, the setting of above-mentioned interior inner liner 1-8, the cold-water wall of low temperature and the raw coke oven gas of high temperature can be avoided to be formed directly
Contact cooling interface, it is to avoid the excessive temperature difference and cause less than coking critical point temperature, it is to avoid cause coking endanger, it is ensured that give up
Will not coking while recuperation of heat；The setting of outer inner liner 1-4, not only can play insulation effect to water-cooling wall, prevent water-cooled
Wall upwards riser outer tube 1-3 dispels the heat, it is ensured that the high efficiente callback of raw coke oven gas used heat, plays again the heat preventing reclaiming and dissipates to ring around
Border, has reached reduction environment temperature, improves work condition environment purpose.
Wherein, on above-mentioned, point for measuring temperature mouth of pipe 1-17 and lower point for measuring temperature mouth of pipe 1-16 is respectively provided with and is connected with control system
After temperature element, in coke oven running, temperature element detects the internal raw gas temperature of tedge in real time, records raw gas temperature
During higher than critical coking temperature 350 DEG C, by the high-temperature residual heat of the circulating water reclamation raw coke oven gas of water-cooling wall inner chamber, and control to rise
The temperature of pipe is not higher than 600 DEG C, can play the problem avoiding the fastener for connection weld seam of tedge high temperature fracture occur；Record famine
When gas temperature is close to critical coking temperature 350 DEG C, control system is turned down rapidly the flow of recirculated water, flow velocity, can be carried rapidly
The temperature of raw coke oven gas in liter tedge, it is to avoid coking；Accidental, moment coking once occurs, can be fast by coking after higher than 400 DEG C
Fast thawing solution.
As in figure 2 it is shown, described water-cooling wall includes high-temperature-hot-water section H1 being connected, saturated vaporization section H2 and mistake from bottom to top
Vapours section H3.Wherein, high-temperature-hot-water section H1 is also water-cooled section, is arranged on the lower end of coke oven coke oven uprising tube 1, accounts for coke oven coke oven uprising tube high
About the 40% of degree H, inflow temperature, at 10-40 DEG C, absorbs the heat energy of raw coke oven gas used heat 50-60%, by water by water-cooled section
Temperature quickly rises to 95 DEG C, reaches nearly vaporization.Wherein, saturated vaporization section H2 is also high temperature condensation segment, is positioned at high-temperature hot
The top of water section H1, the middle part of coke oven coke oven uprising tube 1, account for about the 30% of coke oven coke oven uprising tube height H, its effect is by absorbing famine
High-temperature-hot-water, at the waste heat of end section used heat, is vaporizated into saturated vapor by coal gas, reclaims raw coke oven gas used heat further.Wherein, overheated
Steam segment H3 is the hot quality in order to improve reclaimed used heat, is the important step realizing Waste Heat Recovery with recycling, overheated steaming
Vapour section H3 is arranged on the upper end of coke oven coke oven uprising tube 1, is positioned at the top of saturated vaporization section H2, accounts for the 30% of coke oven coke oven uprising tube height H
Left and right, is absorbed the used heat of raw coke oven gas epimere, the saturated vapor in stage casing is risen Huawei's superheated steam by superheated steam section H3.
As in figure 2 it is shown, wherein, in water-cooling wall inner chamber 1-6, it is provided with flow-guiding structure.The setting of flow-guiding structure, it is simple to water-cooled
High-temperature-hot-water in wall inner chamber 1-6, saturated vapor, superheated steam disturbance, increase heat transfer effect.
Wherein, described flow-guiding structure includes: is positioned at the current deflector 1-12 of high-temperature-hot-water section H1, is positioned at saturated vaporization section
The vaporization deflector 1-13 of H2 and the steam diversion plate 1-14 being positioned at superheated steam section H3.Further, current deflector 1-12,
Vaporization deflector 1-13, steam diversion plate 1-14 are wholely set, helically flow-guiding structure.Further, current deflector 1-
The pitch of 12, the vaporization pitch of deflector 1-13, the pitch of steam diversion plate 1-14 increase successively；Fluid resistance can be reduced,
Increase the coefficient of heat transfer.
As in figure 2 it is shown, wherein, described coke oven coke oven uprising tube internal diameter D is 450mm～500mm.After expanding the internal diameter of tedge,
On the one hand it is to reduce raw coke oven gas in unit intensity tedge within, the resistance that raw coke oven gas rises, shortening raw coke oven gas can be reduced
The time of effusion in tedge, it is ensured that while Waste Heat Recovery, raw coke oven gas will not coking；On the other hand, raw coke oven gas can be changed to exist
Gas flow shape in tedge, is become turbulent flow by laminar flow, and turbulent flow phenomenon makes raw coke oven gas produce vortex inside tedge and seethe,
In waste heat recovery process, tedge liner high-temperature resistant nano ceramic coating is inclined with the temperature at the interface of the raw coke oven gas lowered the temperature simultaneously
Low, promote the raw coke oven gas of different temperatures to form air-flow group, air-flow group density variation forms cyclone, and cyclone promotes waste coal further
Gas ectonexine is sufficiently mixed, and the section temperature finally making raw coke oven gas by any cross section of tedge is basically identical, makes waste coal
Gas waste thermal energy farthest reclaims, and reduces to the ammonia volume of raw coke oven gas cooling.Meanwhile, coke oven coke oven uprising tube internal diameter dilatation
After, eradicate raw coke oven gas and escaped from coaling hole and observation port or the problem of artificial aerofluxus.
Coke oven coke oven uprising tube of the present utility model is installed to coke oven top, respectively at upper point for measuring temperature mouth of pipe 1-17, lower thermometric
Arranging, on some mouth of pipe 1-16, the temperature element being connected with control system, water inlet pipe mouth 1-11 is connected with supply channel, steam outlet pipe mouth
1-15 is connected with steam pipework.When coke oven for iron runs, water enters water-cooling wall inner chamber 1-6 from water inlet pipe mouth 1-15；High temperature famine coal
Gas enters coke oven coke oven uprising tube 1, direction ascension shown in arrow along Fig. 2 from coke oven, in uphill process, transfers heat to high temperature resistant
Nano ceramic coat 1-10, tedge inner tube 1-9, there is heat with tedge inner tube 1-9 of high temperature in the water in water-cooling wall inner chamber 1-6
Exchange；In high-temperature-hot-water section H1, water temperature quickly rises to 95 DEG C, reaches nearly vaporization；At saturated vaporization section H2, high-temperature-hot-water
It is vaporizated into saturated vapor, reclaims raw coke oven gas used heat further；In superheated steam section H3, absorb the useless of raw coke oven gas epimere further
Heat, rises Huawei's superheated steam by the saturated vapor in stage casing；Superheated steam is finally derived from steam outlet pipe mouth 1-15, enters steam pipe
Road, prepared superheated steam can enter follow-up used heat reutilization system, is used for generating electricity or heating etc., it is achieved that high temperature is waste
The effective recycling of coal gas used heat.
In sum, coke oven coke oven uprising tube of the present utility model, by arranging water-cooling wall, it is achieved that high temperature raw coke oven gas used heat
Effective recycling；By raw gas temperature in arranging high-temperature resistant nano ceramic coating and controlling tedge, solve raw coke oven gas
In tar tedge inwall adsorb wall built-up, a difficult problem for coking, extend the service life of tedge；The internal diameter of tedge expands
Rong Hou, reduces to the ammonia volume of raw coke oven gas cooling, has eradicated raw coke oven gas and has escaped from coaling hole and observation port or artificial aerofluxus
Problem, for safety in production provide guarantee.
Claims (10)
1. coke oven coke oven uprising tube, it is characterised in that including:
Tedge body, the two ends of described tedge body are respectively arranged with flange, and described tedge body uses sleeve structure,
Described sleeve structure includes tedge outer tube and the tedge inner tube being enclosed within described tedge outer tube, described tedge outer tube,
Described tedge inner tube, described flange cross sleeve pipe cavity volume jointly；
Water-cooling wall, described water-cooling wall is arranged in described sleeve pipe cavity volume, and described water-cooling wall includes outside water-cooling wall inwall and water-cooling wall
Wall, is water-cooling wall inner chamber between described water-cooling wall inwall and described water-cooling wall outer wall, the bottom of described water-cooling wall outer wall be provided with
The water inlet pipe mouth of described water-cooling wall inner space, the top of described water-cooling wall outer wall is provided with and the going out of described water-cooling wall inner space
Steam pipe mouth.
2. coke oven coke oven uprising tube as claimed in claim 1, it is characterised in that the inner surface of described tedge inner tube scribbles high temperature resistant
Nano ceramic coat.
3. coke oven coke oven uprising tube as claimed in claim 1 or 2, it is characterised in that in described water-cooling wall inwall and described tedge
It is interior inner liner between pipe, is outer inner liner between described water-cooling wall outer wall and described tedge outer tube.
4. coke oven coke oven uprising tube as claimed in claim 3, it is characterised in that described water-cooling wall includes the height being connected from bottom to top
Warm water's section, saturated vaporization section and superheated steam section.
5. coke oven coke oven uprising tube as claimed in claim 4, it is characterised in that be provided with flow-guiding structure in described water-cooling wall inner chamber.
6. coke oven coke oven uprising tube as claimed in claim 5, it is characterised in that described flow-guiding structure includes: be positioned at described high-temperature hot
The current deflector of water section, it is positioned at the vaporization deflector of described saturated vaporization section and is positioned at the steam diversion of described superheated steam section
Plate.
7. coke oven coke oven uprising tube as claimed in claim 6, it is characterised in that described current deflector, described vaporization deflector, institute
State steam diversion plate to be wholely set, helically flow-guiding structure.
8. coke oven coke oven uprising tube as claimed in claim 7, it is characterised in that the pitch of described current deflector, described vaporization are led
The stream pitch of plate, the pitch of described steam diversion plate increase successively.
9. coke oven coke oven uprising tube as claimed in claim 1 or 2, it is characterised in that the upper end of described tedge body is provided with survey
The warm spot mouth of pipe, the lower end of described tedge body is provided with the lower point for measuring temperature mouth of pipe.
10. coke oven coke oven uprising tube as claimed in claim 2, it is characterised in that the internal diameter of described coke oven coke oven uprising tube be 450mm～
500mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620850214.2U CN205874298U (en) | 2016-08-05 | 2016-08-05 | Coke furnace ascension pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620850214.2U CN205874298U (en) | 2016-08-05 | 2016-08-05 | Coke furnace ascension pipe |
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| Publication Number | Publication Date |
|---|---|
| CN205874298U true CN205874298U (en) | 2017-01-11 |
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ID=57702277
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| CN201620850214.2U Expired - Fee Related CN205874298U (en) | 2016-08-05 | 2016-08-05 | Coke furnace ascension pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085466A (en) * | 2016-08-05 | 2016-11-09 | 山东宏力热泵能源股份有限公司 | Coke oven coke oven uprising tube |
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2016
- 2016-08-05 CN CN201620850214.2U patent/CN205874298U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106085466A (en) * | 2016-08-05 | 2016-11-09 | 山东宏力热泵能源股份有限公司 | Coke oven coke oven uprising tube |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20190805 |