CN104531221B - A kind of gasification furnace structure that can simultaneously process fine coal and water-coal-slurry - Google Patents
A kind of gasification furnace structure that can simultaneously process fine coal and water-coal-slurry Download PDFInfo
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- CN104531221B CN104531221B CN201410781757.9A CN201410781757A CN104531221B CN 104531221 B CN104531221 B CN 104531221B CN 201410781757 A CN201410781757 A CN 201410781757A CN 104531221 B CN104531221 B CN 104531221B
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/485—Entrained flow gasifiers
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
- C10J3/506—Fuel charging devices for entrained flow gasifiers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/74—Construction of shells or jackets
- C10J3/76—Water jackets; Steam boiler-jackets
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
Abstract
The present invention relates to a kind of gasification furnace structure that can simultaneously process fine coal and water-coal-slurry, including body of heater, in body of heater, be provided with water-cooling wall, below vaporizer, be provided with shock chamber；It is characterized in that the top of described body of heater is provided with Water-coal-slurry nozzle, gasification furnace sidewall of the furnace body top is provided with at least three fine coal burner, and each fine coal burner is uniform along body of heater same level circumference；Also being arranged with two set startup burners on sidewall of the furnace body, the bottom of described body of heater is provided with slag notch, and described slag notch is provided with slag breaker.The present invention has stronger coal and adapts to ability, can process fine coal and water-coal-slurry simultaneously, it is possible to mix burning high ash melting point, high ash, high sulfur content, " the four high colms " of high basic metal content, and single stove treating capacity is big and energy consumption is low.
Description
Technical field
The present invention relates to chemical industry equipment, refer specifically to a kind of gasification furnace structure that can simultaneously process gasification powdered coal and water-coal-slurry.
Background technology
Coal gasification is at high temperature to react with the combustible in coal with gasifying agent, generates fuel gas, is used for preparing
Cleaning coal gas.Coal gasification is the important process technology of Filter Tuber For Clean Coal.
Coal gasifying process mainly has coal gasification and coal water slurry gasification.Wherein the raw material of coal gasification is dry pulverized coal, by height
Dry pulverized coal is sent into gasification furnace and is gasified by pressure nitrogen.And the raw material of coal water slurry gasification is the coal dust of certain particle size, water and adds
Adding the mixture of agent mixture by a certain percentage, this mixture has mobility and stability, can use pumping, mist
Change and burn with stable ignition；Can also long distance delivery and long-time preservation.
Coal water slurry gasification and fine coal gasification process belong to air flow bed coal pressure gasification technique together, are current China New Coal Chemicals
Main flow gasifying process.Wherein coal-water slurry gasification has good stability, operational efficiency is high, comprehensive energy consumption is medium, body of heater
The advantages such as simple in construction, coal slurry conveying equipment are simple；But as-fired coal matter requires height, and single stove coal feeding amount is little, and carbon converts
Rate is low, and in the synthesis gas after process, active component is the highest, and the Water-coal-slurry nozzle life-span is short, refractory brick life is short.Fine coal gas
Changing coal adaptable, efficiency of carbon con version is high, and in synthesis gas, active component content is high, and production capacity is big, environmental friendliness；But
Equipment is complicated, investment is big, comprehensive energy consumption is high.
Both technique is respectively arranged with outstanding advantages, also has distinct disadvantage, the most integrated coal water slurry gasification and two kinds of coals of coal gasification
The advantage of gasifying process and abandon the shortcoming of two kinds of coal gasifying process and become a technology difficulty of new type coal gasification technique research and development
Topic.
Summary of the invention
The technical problem to be solved is that stove treating capacity is big, energy consumption is low for a kind of list of present situation offer for prior art
And the gasification furnace structure of gasification powdered coal and water-coal-slurry can be processed simultaneously.
The present invention solves the technical scheme that above-mentioned technical problem used: this can process the gasification of fine coal and water-coal-slurry simultaneously
Furnace structure, including the body of heater being made up of pressure housing, described body of heater internal upper part is provided with water-cooling wall, and formation gas gone along with sb. to guard him by water-cooling wall
Changing room, the gap between water-cooling wall and body of heater constitutes annular space；
It is provided with shock chamber below vaporizer, is connected by top down-comer between shock chamber and vaporizer；
It is characterized in that the top of described body of heater is provided with Water-coal-slurry nozzle, vaporizer described in the outlet of Water-coal-slurry nozzle；
Described gasification furnace sidewall of the furnace body top is provided with at least three fine coal burner, and each described fine coal burner is along body of heater same level
On circumference uniform；Described water-cooling wall is provided with the multiple installing holes corresponding to each described fine coal burner, on each described installing hole
Connecting and have taper muffle cover, the head of each described fine coal burner is arranged on taper muffle cover after sidewall of the furnace body and water-cooling wall
Bottom；
Corresponding to each fine coal burner, described body of heater is provided with the first flange seat, and the first flange seat is along body of heater position, place
The normal direction put is arranged；It is provided with the second flange seat in described first flange seat；The axis of the second flange seat and corresponding first
Angle between the axis of flange seat is 0.5～5 °；Described fine coal burner is co-axially located at each self-corresponding second flange seat
In；
Also being arranged with two set startup burners on described sidewall of the furnace body, described startup burner is positioned at the upper of described fine coal burner
Side；
Often set startup burner includes respectively: be arranged on the adapter on described sidewall of the furnace body, and the first end of adapter passes body of heater side
In wall gap between sidewall of the furnace body and water-cooling wall；First end of adapter connects cooling water jecket, institute by expansion joint
State cooling water jecket to be located on described water-cooling wall；
Second end of described adapter is sequentially connected with the second cutting ball valve, sealed letter and first by startup burner flange seat and cuts off
Ball valve, described first cutting ball valve connects startup burner seat by sealed letter；
Being additionally provided with suspension beam base on described sidewall of the furnace body, hang beam and be arranged on suspension beam base, track girder is connected to institute
Stating on suspension beam, startup burner is connected in the driving means that can move along track girder by ring-shaped clamping sleeve；
Described startup burner, adapter and cooling water jecket are coaxially disposed, and the internal diameter of described startup burner seat and described adapter is big
External diameter in described startup burner；
The axis of described startup burner becomes 13～18 ° of angles with described fine coal burner centrage place plane；
The bottom of described body of heater is provided with slag notch, and described slag notch is provided with slag breaker.
Described fine coal burner includes the fine coal passage being arranged on fine coal burner center, is set in the confession outside described fine coal passage
Have between annular between the mixture channel that oxygen and steam pass through, and described fine coal passage and described mixture channel
Gap；The cooling water intake tunnel being connected and cooling water backwater channel it is sequentially provided with outside mixed thing passage.
The entrance of described fine coal passage is provided with the inlet flange for connecting fine coal pipeline, the entrance of described mixture channel
Being provided with the mixture inlet flange being connected with mixture conveyance conduit, the entrance of described cooling water intake tunnel is provided with
Cooling water inlet flange, the outlet of described cooling water backwater channel is provided with coolant outlet flange.
Described startup burner includes central ignition channel, is provided with electronic ignition lever, electronic ignition in described central ignition channel
Bar connects high-tension ignition bag by high tension cable, in described central ignition channel head in electronic ignition lever be additionally provided with for
The head flame detector of detection flame；
Sequentially coaxially be equipped with outside described central ignition channel fuel channel, oxygen channel, burner cooling water to aquaporin and
Burner cooling water backwater channel；Burner cooling water is connected with burner cooling water backwater channel to aquaporin.
The entrance of described central ignition channel is provided with the protection nitrogen inlet flange being connected with source nitrogen, and described fuel leads to
The entrance in road is provided with fuel inlet flange, and the entrance of described oxygen channel is provided with oxygen intake flange, and described burner is cold
But water is provided with burner cooling water inlet flange to the entrance of aquaporin, and the outlet of described burner cooling water backwater channel sets
There is burner coolant outlet flange.
Compared with prior art, gasification furnace provided by the present invention has stronger coal and adapts to ability, can process simultaneously
Fine coal and water-coal-slurry, it is possible to mix burning high ash melting point (> 1500 DEG C), high ash (25%～40%), high sulfur content (2.4%～
5.5%), high basic metal content (Na in ash2O+K2O is aggregated in 3.0%～10%) " four high colms ", and
Single stove treating capacity is big and energy consumption is low.
Accompanying drawing explanation
Fig. 1 is that the embodiment of the present invention assembles structural representation；
Fig. 2 is the sectional view of line A-A along Fig. 1；
Fig. 3 is the sectional view of fine coal burner in the embodiment of the present invention；
Fig. 4 is the assembling structural representation of startup burner in the embodiment of the present invention；
Fig. 5 is the sectional view of startup burner in the embodiment of the present invention；
Fig. 6 is the sectional view of line B-B along Fig. 1；
Fig. 7 is the sectional view of Water-coal-slurry nozzle in the embodiment of the present invention；
Fig. 8 is the side-looking structural representation of saturated boiler water house steward/distribution pipe in the embodiment of the present invention；
Fig. 9 is the scheme of installation that direction overlooked by steam water interface house steward in the embodiment of the present invention/distribution pipe；
Figure 10 is steam water interface house steward and the structural representation of branched pipe in the embodiment of the present invention；
Figure 11 is the scheme of installation that in the embodiment of the present invention, direction overlooked by saturated boiler water house steward and distribution pipe.
Detailed description of the invention
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figure 1 to 11, this gasification furnace structure that can simultaneously process fine coal and water-coal-slurry includes:
The body of heater 20 being made up of pressure housing, body of heater 20 internal upper part is provided with water-cooling wall 28, and formation gas gone along with sb. to guard him by water-cooling wall 28
Changing room 29, the gap between water-cooling wall 28 and body of heater 20 constitutes annular space 18；Internally installed at annular space 18
There are saturated boiler supply mains/distribution pipe 34 and steam water interface house steward/distribution pipe 33.
The structure of saturated boiler supply mains/distribution pipe 34 and steam water interface house steward/distribution pipe 33 can be selected as required
Of the prior art any one.In the present embodiment, saturated boiler water inlet extension tube attached 110, in saturated boiler water inlet
Adapter 111, saturated boiler supply mains 34, some supports of pipelines 112, some distribution bases 113, some distribution pipes 114.
The a certain arm of the saturated boiler supply mains of boiler forced-circulating pump outlet connects saturated boiler water with welding manner and enters
Mouth extension tube attached 110.It is internal that saturated boiler supply mains 34 is fixed on annular space 18 by support of pipelines 112.Support of pipelines
112 are arranged on the inner surface of gasification furnace body of heater 20 with welding manner.One end of distribution base 113 is arranged on welding manner
Saturated boiler supply mains 34, the other end connects distribution pipe 114 with welding manner.A certain distribution pipe 114 is pacified with welding manner
It is contained in a certain feeder connection of water-cooling wall 28.
One end of distribution base 113 is arranged on saturated boiler supply mains 34, the center of distribution base 113 with welding manner
Line is perpendicular to saturated boiler supply mains 34 outer surface.Distribution pipe 114 is vertically mounted on distribution base 113 with welding manner
On.
Steam water interface house steward/distribution pipe 33 is installed integration member and is included:
Steam water interface outlet extension tube attached 120, steam water interface outlet inner connecting tube 121, steam water interface crooked pipeline (does not has
Have installation steam water interface distribution pipe) 122, support of pipelines 123, steam water interface straight pipeline (is installed steam water interface to divide
Pipe arrangement) 124, steam water interface distribution base 125 and steam water interface distribution pipe 126.Above-mentioned parts all have multiple.
The arm of the steam water interface house steward connecting drum steam water interface entrance connects steam water interface with welding manner and goes out
Mouth extension tube attached 120.Steam water interface crooked pipeline 122 and steam water interface straight pipeline 124 are fixed by support of pipelines 123
Inside annular space 18.Support of pipelines 123 is arranged on the inner surface of gasification furnace body of heater 20 with welding manner.Soda pop is mixed
One end of compound distribution base 125 is arranged on steam water interface straight pipeline 124 with welding manner, and the other end is with welding manner
Connecting steam water interface distribution pipe 126, the central axis of distribution base 125 is in steam water interface straight pipeline 124 appearance
On face, distribution pipe 126 with welding manner be vertically mounted on distribution base 125 on, this steam water interface distribution pipe 126 with
Welding manner is arranged on the respective channel outlet of water-cooling wall 28.
Shock chamber 30 it is provided with, by top down-comer 26 phase between shock chamber 30 and vaporizer 29 below vaporizer 29
Connection.
Body of heater 20 top is installed by welding with the Water-coal-slurry nozzle for installing Water-coal-slurry nozzle 8 along gasification furnace centerline direction
Large flange 190.The outlet vaporizer 29 of Water-coal-slurry nozzle 8.
Water-coal-slurry nozzle 8 can select as required of the prior art any one.Water-coal-slurry in the present embodiment is burnt
Mouth 8 includes the most successively: central oxygen passage 181, water-coal-slurry passage 183 and outer epoxy passage 185, before burner
Portion is provided with burner cooling water coil 187.
The entrance of central oxygen passage 181 is provided with central oxygen inlet flange 180, and the entrance of water-coal-slurry passage 183 sets
There is water-coal-slurry inlet flange 182, outer epoxy inlet flange 184 on the entrance of outer epoxy passage 185, burner cooling water pond
The entrance of pipe 187 is provided with burner cooling water inlet flange 186, and the outlet of burner cooling water coil 187 is provided with burner
Coolant outlet flange 188, the outer wall of Water-coal-slurry nozzle 8 is additionally provided with and Water-coal-slurry nozzle large flange 190 phase on body of heater
Corresponding companion flange 189.
Water-cooling wall top is reserved with the perforate for installing Water-coal-slurry nozzle 8.When installing Water-coal-slurry nozzle 8, by water coal
The companion flange 189 of slurry burner 8 couples with Water-coal-slurry nozzle large flange 190, then by water-coal-slurry pipeline, central oxygen
Adpting flange on pipeline, outer epoxy pipeline, burner cooling water inlet pipe road and burner CWR road is (in figure not
Illustrate) flange corresponding with Water-coal-slurry nozzle connection, Water-coal-slurry nozzle can be installed, after installation, Water-coal-slurry nozzle
The head of 8 arrives water-cooling wall top and reserves perforate.
In the present embodiment, at body of heater with being provided with four fine coal burners 6 on grade level circumference, four fine coal burners set respectively
Put in 30 ° of positions of body of heater, 120 ° of positions, 210 ° of positions and 300 ° of positions.The quantity of fine coal burner can also
Production scale according to gasification furnace is set to three, five or six.When fine coal burner quantity is more than six, field pipes
Complexity arranged by line, and engineering difficulty and operation easier are big；When fine coal burner is less than three, it is difficult to realize water-cooled by eddy flow
The uniform dross of wall.
Accordingly, it is uniformly provided with four installing holes in water-cooling wall same absolute altitude relevant position, in each installing hole hole, is provided with four
Individual taper muffle cover 53 substitutes the water-cooling wall near perforate, and the head of fine coal burner 6 is arranged on the bottom of taper muffle cover.
Corresponding to each fine coal burner, body of heater is provided with the first flange seat 52, the i.e. mounting seat of fine coal burner, and
One flange seat 52 is arranged along the normal direction of body of heater position, place；The second flange seat 51 it is provided with in first flange seat 52；The
The axis of two flange seats 51 is obliquely installed relative to the axis of the first flange seat 52；Second flange seat 51 in the present embodiment
Axis and the axis of corresponding first flange seat 52 between angle be 4.5 °.The centrage of each fine coal burner 6 is with respective
The first corresponding flange seat 51 and the dead in line of muffle cover 53.
Each fine coal burner 6 is provided with adpting flange 67, and adpting flange 67 is connected with each self-corresponding second flange seat 51
After connecing, will install by fine coal burner 6.
In the present embodiment, each fine coal burner 6 includes the fine coal passage 64 being arranged on fine coal burner center, is set in fine coal
The mixture channel 65 that oxygen outside passage 64 and steam pass through, fine coal passage 64 and mixture channel 65 it
Between there is annular gap 69；It is sequentially provided with the cooling water intake tunnel 66 being connected outside mixture channel 65 and cooling water returns
Aquaporin 68.
The entrance of fine coal passage 64 is provided with the inlet flange 60 for connecting fine coal pipeline, entering of mixture channel 65
Mouth is provided with the mixture inlet flange 61 being connected with mixture conveyance conduit, on the entrance of cooling water intake tunnel 66
Being provided with cooling water inlet flange 62, the outlet of cooling water backwater channel 68 is provided with coolant outlet flange 63.These methods
Blue setting facilitates fine coal burner and the connection of each logistics pipeline and dismounting.
Startup burner, is arranged on described sidewall of the furnace body, is provided with two sets, arranges symmetrically, and startup burner is positioned at institute
State the top of fine coal burner；Startup burner 17 centrage is in 345 ° of angles in the projection of fine coal burner 6 center line plane.
Startup burner 17 centrage is at projection and 4# fine coal burner seat large flange 152 centrage of fine coal burner 6 center line plane
Intersect at a little 104.Distance D between control point 104 and the fine coal burner 6 center line plane center of circle 105 300～
Between 400mm, preferably D=335mm.
Often set startup burner includes respectively: the startup burner 17 being arranged on gasification furnace sidewall, going into operation in the present embodiment
Burner 17 includes central ignition channel 74, is provided with electronic ignition lever 70, electronic ignition lever 70 in central ignition channel 74
Connecting high-tension ignition bag 72 by high tension cable 73, in central ignition channel 74, the head in electronic ignition lever 70 also sets
There is the head flame detector 83 for detecting flame.
Central ignition channel 74 is outer, and to be sequentially coaxially equipped with fuel channel 75, oxygen channel 77, burner cooling water feedwater logical
Road 79 and burner cooling water backwater channel 81；Burner cooling water cools down water backwater channel 81 phase to aquaporin 79 and burner
Connection.Further, the entrance of central ignition channel 74 is provided with the protection nitrogen inlet flange 71 being connected with source nitrogen,
The entrance of fuel channel 75 is provided with fuel inlet flange 76, and the entrance of oxygen channel 77 is provided with oxygen intake flange
78, burner cooling water is provided with burner cooling water inlet flange 80 to the entrance of aquaporin 79, and burner cooling water backwater leads to
The outlet in road 81 is provided with burner coolant outlet flange.
Startup burner 17 connects vaporizer by startup burner assembly.Startup burner assembly includes:
The adapter 94 being arranged on gasification furnace sidewall 20, the first end of adapter 94 is positioned at gasification through gasification furnace sidewall 20
In space between furnace sidewall and gasification furnace water-cooling wall 28；First end of adapter connects cooling water jecket by expansion joint 95
96, cooling water jecket 96 is located on water-cooling wall 28；Second end of adapter 94 is by startup burner flange seat 93 successively
Connecting the second cutting ball valve 92, sealed letter 91 and the first cutting ball valve 90, the first cutting ball valve is connected by sealed letter to be opened
Work burner seat 88.
Startup burner 17, adapter 94 and cooling water jecket 96 are coaxially disposed, and startup burner seat 88 is interior with adapter 94
Footpath is more than the external diameter of startup burner 17；To facilitate startup burner turnover adapter.
The axis of startup burner 17 becomes 13～18 ° of angles with fine coal burner centrage place plane, and the present embodiment is 15
°。
Startup burner 17 is connected in driving means 89 by ring-shaped clamping sleeve, and the driving means in the present embodiment is by motor
The dolly driven, motor link control program.Driving means 89 is arranged on track girder 86, and can walk along track girder；
Track girder 86 is arranged on suspension beam 84, hangs beam 84 and is fixed on suspension beam base 85, hangs beam base 85, if
Put on gasification furnace sidewall 20.
In the present embodiment, the top down-comer 26 of vaporizer slag notch 27 and connection vaporizer 29 and shock chamber 30 is
A part for water-cooling wall 28；One layer of Tercod 31 of uniform application inside water-cooling wall 28.
Chilling ring 25 flange is fixed on top down-comer 26 lower end.The bottom welding manner of chilling ring 25 and bottom
Down-comer 23 is connected.Between the outer rim of body of heater 20 and chilling ring 25, welding manner installs sealing plate 19.Sealing plate 19
It is arranged over the purging gas pipeline 191 for purging annular space 18.Between chilling ring 25 and bottom down-comer 23
Space is shock chamber 30.The diameter of bottom down-comer 23 is more than the diameter of top down-comer 26.
The bottom of body of heater is provided with slag notch, and lower portion of furnace body flange method is provided with slag breaker 22.
Body of heater 20 top is provided with flame detector 32.The installation integration member of flame detector 32 includes:
Cooling water jecket 99, expansion joint 100, adapter 101, flame detector flange seat 102, cutting ball valve 103,
Flame detector 32.Described flame detector 32 has two sets, the centrage of two set flame detectors and fine coal burner 6
Centerline in same elevation location.Wherein first set flame detector 32 is arranged on fine coal burner 6 center line plane
165 ° of Angle Position, its centrage overlaps in the projection of fine coal burner 6 center line plane with the centrage of startup burner 17.
Second set flame detector 32 is arranged on 75 ° of Angle Position of fine coal burner 6 center line plane, its centrage with open
Work burner 17 centrage is vertical in the projection of fine coal burner 6 center line plane, and intersection point point is 104.
The operation principle of this gasification furnace is described as follows:
Fine coal burner 6, integration startup burner 17, Water-coal-slurry nozzle 8 install, wherein integration startup burner
17 are in parking spot.
The cooling water flow path of fine coal burner 6, integration startup burner 17 and Water-coal-slurry nozzle 8 comes into operation.
The fine coal passage of fine coal burner 6 and oxygen channel each lead into purge gas.
The water-coal-slurry passage of Water-coal-slurry nozzle 8 and oxygen channel each lead into purge gas.
The fuel system of integration startup burner 17 is in boosting resting state.
Two ultraviolet flame detectors 32 of water-cooling wall integration startup burner 17 are in resting state, open ultraviolet
The root valve of line flame detector 32, cleans out ultraviolet flame detector 32 on water-cooling wall, observes channel interior
Clinker.
Starch mixing gasifying furnace 7, carbon are washed tower 10 and are in preparation driving state.Water-steam system increasing temperature and pressure is complete, steam
System forced circulation pump operation, water-cooling wall internal each channel water circulation is normal.
Oxygen system 9, grey water treatment system 11, follow-up flare system, deslagging lock hopper 12, dragveyer 13, chilled water
Pump 15, Venturi scrubber 14, chilled water cooler 16 are in running status.
Annular space purge gas pipeline 191 above sealing plate 19 comes into operation, it is ensured that annular space pressure is slightly above gasification furnace
Burner hearth 29.
Start the ignition procedure of integration startup burner 17, open the cutting ball valve 90 and 92 of integration startup burner 17,
Start propulsive mechanism to be pushed in startup burner in-channel water chuck 96 by startup burner 17.Sequence control program sends subsequently
Starting signal, opens fuel channel 75 and the oxygen channel 77 of high pressure nitrogen valve purging integration startup burner 17.Blow
Sweep complete.Fuel is introduced respectively integration startup burner 17, filling channel, control oxygen oil ratio between 2.0～3.5,
When oxygen and fuel set up back pressure from head spray while, integration startup burner 17 high-tension ignition bag 72 start work
Make, by special high tension cable 73, high-tension current is sent into high-pressure electronic spark lever 70, by high-pressure electronic spark lever 70
Head gas ionization forms high temperature gas flow and pulse spark, and spark lever head flame detector 83 detects pulse spark,
Produce electronic ignition lever normal operation signal and feed back to ignition order control program.Pulse spark is by startup burner 17 head
Spray lights oxygen and fuel mixture, and 2 ultraviolet flame detectors 32 being arranged on ad-hoc location detect oxygen
After ultraviolet in gas and fuel mixture combusts flame, produce 2 fire defector normal signal and feed back to ignition order control
Processing procedure sequence, confirms that integration startup burner 17 is lighted a fire successfully, and subsequently, gasification furnace 7 and carbon are washed tower 10 and started to warm up boosting.
When electronic striking pulse spark disappears, open spark lever protection nitrogen 71 inlet duct valve purging at once and integrally melt
The ignition channel 74 of work burner 17.
When gasification furnace 7 boosts to rated pressure, progressively light fine coal burner 6.The oxygen/water coal slurry of Water-coal-slurry nozzle 8
Passage is in nitrogen purging state.When at least two fine coal burners 6 are in stable fired state, stopping of startup burner
Car sequence control program extinguishes integration startup burner 17, and fuel channel 75 and the stop valve of oxygen channel 77 are closed in distribution,
Open the purging nitrogen valve of fuel channel 75 and oxygen channel 77 respectively.After having purged, close fuel channel respectively
75 and the purging nitrogen valve closing of oxygen channel 77, close spark lever protection nitrogen 71 inlet duct valve and stop nitrogen
The ignition channel 74 of integration startup burner 17 is swept in air-blowing, and motor drives dolly by integration startup burner 17 from ignition position
Put and return parking spot.Closing the cutting ball valve 90 and 92 of integration startup burner 17, regulation circulating cooling water flow arrives
Minimum (0.3kg/s), stops petrolift, closes the root valve of ultraviolet flame detector 32.
After all fine coal burner 6 is working properly, and fine coal burner 6 load reaches 90～100%, light top water coal slurry
Burner 8, progressively regulates effective gas load, and in gasification furnace 7, pressure raises.
High pressure oxygen from air separation unit is respectively fed to the Water-coal-slurry nozzle at starch mixed airflow bed pressurizing gasifying furnace top
8 and the fine coal burner 6 on top.The oxygen back-pressure of fine coal burner 6 requires higher than gasification furnace pressure 0.08～0.15Mpag,
Preferably pressure reduction is 0.10～0.12Mpag；The fine coal float backpressure requirements of fine coal burner 6 is higher than gasification furnace pressure.Water
The oxygen back-pressure of coal slurry burner 8 and water-coal-slurry backpressure requirements are higher than gasification furnace pressure.High pressure oxygen and fine coal float are passed through
If eccentrically mounted dried coal powder burner 6 becomes the flow field counterclockwise rotated at freeze profile, pass in the strengthening of burner hearth inward eddy
Matter, gasification powdered coal, there is incomplete oxidation reaction.Meanwhile, high pressure oxygen and water under high pressure coal slurry pass through plan vertical
The Water-coal-slurry nozzle 8 installed is burnt downwards in burner hearth, gasified coal water slurry, produces high temperature rough gas, fusing fine coal and water
Mellow lime point of coal slurry forms small slag particles.
The centrifugal action produced by high-speed rotational raw gas, in raw gas, small slag particles is thrown to water-cooling wall 28
Inner surface, forms slag blanket.Slag blanket is divided into two parts, and being close to water-cooling wall part is fixing slag blanket, and its thickness is relatively fixed；
Counter-fire face slag blanket is liquid slag blanket, and thickness changes greatly, and is affected by gravity to dirty.
High temperature rough gas and molten state lime-ash down through cinder notch 27 and top down-comer 26, swash through uniform jointly
The chilling ring 25 of cold water, enters along bottom down-comer 23 in the water-bath of shock chamber 30.After major part slag cooling and solidifying,
Fall into bottom shock chamber 30, discharge after slag breaker 22 is broken.High temperature rough gas is along bottom down-comer 23 and tedge
The annular space of 21 rises, and after shock chamber 30 upper guard-plate baffling, enters Venturi scrubbing through raw gas outlet line 24
Device 14.After the chilled water that synthesis gas and Quench water pump 15 are sent here in Venturi scrubber 14 is sufficiently mixed humidification, enter
Carbon washes tower 10.Carbon washes Quench gas entrance shift conversion step or the flare system that top of tower is discharged, and carbon washes the buck that tower bottom is discharged
Use through grey water treatment system 11 Posterior circle.
Claims (5)
1. can process a gasification furnace structure for fine coal and water-coal-slurry simultaneously, including the body of heater (20) being made up of pressure housing,
Described body of heater (20) internal upper part is provided with water-cooling wall (28), and water-cooling wall (28) goes along with sb. to guard him formation vaporizer (29), water-cooling wall (28) and stove
Gap between body (20) constitutes annular space (18)；
Vaporizer (29) lower section is provided with shock chamber (30), by top down-comer (26) between shock chamber (30) and vaporizer (29)
It is connected；
It is characterized in that the top of described body of heater is provided with Water-coal-slurry nozzle (8), gas described in the outlet of Water-coal-slurry nozzle (8)
Change room (29)；
Described gasification furnace body of heater (20) side wall upper part is provided with at least three fine coal burner (6), and each described fine coal burner (6) is along body of heater
On same level circumference uniform；Described water-cooling wall (28) is provided with the multiple installing holes corresponding to each described fine coal burner (6),
Connect on each described installing hole and have taper muffle cover (53), the head of each described fine coal burner (6) through body of heater (20) sidewall and
The bottom of taper muffle cover (53) it is arranged on after water-cooling wall (28)；
Corresponding to each fine coal burner (6), described body of heater is provided with the first flange seat (52), and the first flange seat (52) edge
The normal direction of body of heater position, place is arranged；It is provided with the second flange seat (51) in described first flange seat (52)；Second flange
Angle between axis and the axis of corresponding first flange seat (52) of seat (51) is 0.5～5 °；Described fine coal burner (6) is same
Axle is arranged in each self-corresponding second flange seat (51)；
Also being arranged with two set startup burners on described sidewall of the furnace body, described startup burner is positioned at the upper of described fine coal burner
Side；
Often set startup burner includes respectively: the adapter (94) being arranged on described sidewall of the furnace body, and the first end of adapter (94) is worn
Cross body of heater (20) sidewall to be positioned in the gap between sidewall of the furnace body and water-cooling wall (28)；First end of adapter is by expansion joint (95)
Connecting cooling water jecket (96), described cooling water jecket (96) is located on described water-cooling wall (28)；
Second end of described adapter (94) is sequentially connected with the second cutting ball valve (92), sealed letter by startup burner flange seat (93)
(91) and the first cutting ball valve (90), described first cutting ball valve connects startup burner seat (88) by sealed letter；
It is additionally provided with suspension beam base (85) on described sidewall of the furnace body, hangs beam (84) and be arranged in suspension beam base (85), track
Beam (86) is connected on described suspension beam (85), and startup burner (17) is connected to by ring-shaped clamping sleeve can be mobile along track girder (85)
Driving means (89) on；
Described startup burner (17), adapter (94) and cooling water jecket (96) are coaxially disposed, described startup burner seat (88) and institute
State the internal diameter external diameter more than described startup burner (17) of adapter (94)；
The axis of described startup burner (17) becomes 13～18 ° of angles with described fine coal burner centrage place plane；
The bottom of described body of heater is provided with slag notch, and described slag notch is provided with slag breaker (22).
Gasification furnace structure the most according to claim 1, it is characterised in that described fine coal burner (6) includes being arranged on powder
The fine coal passage (64) at coal burner center, is set in the oxygen in described fine coal passage (64) outside and that steam passes through is mixed
There is between compound passage (65), and described fine coal passage (64) and described mixture channel (65) annular gap (69)；Institute
Cooling water intake tunnel (66) being connected and cooling water backwater channel (68) it is sequentially provided with outside mixture channel (65).
Gasification furnace structure the most according to claim 2, it is characterised in that set on the entrance of described fine coal passage (64)
Having the inlet flange (60) for connecting fine coal pipeline, the entrance of described mixture channel (65) is provided with and carries with mixture
The mixture inlet flange (61) that pipeline is connected, the entrance of described cooling water intake tunnel (66) is provided with cooling water inlet
Flange (62), the outlet of described cooling water backwater channel (68) is provided with coolant outlet flange (63).
4. according to the gasification furnace structure described in claim 1,2 or 3, it is characterised in that described startup burner (17) includes
Central ignition channel (74), is provided with electronic ignition lever (70) in described central ignition channel (74), electronic ignition lever (70) is passed through
High tension cable (73) connects high-tension ignition bag (72), and the head of the inherent electronic ignition lever (70) of described central ignition channel (74) is also
It is provided with the head flame detector (82) for detecting flame；
Described central ignition channel (74) is the most sequentially coaxially equipped with fuel channel (75), oxygen channel (77), burner cooling water
Water backwater channel (81) is cooled down to aquaporin (79) and burner；Burner cooling water cools down water backwater to aquaporin (79) and burner and leads to
Road (81) is connected.
Gasification furnace structure the most according to claim 4, it is characterised in that the entrance of described central ignition channel (74)
Being provided with protection nitrogen inlet flange (71) being connected with source nitrogen, the entrance of described fuel channel (75) is provided with fuel
Inlet flange (76), the entrance of described oxygen channel (77) is provided with oxygen intake flange (78), the cooling water feedwater of described burner
The entrance of passage (79) is provided with burner cooling water inlet flange (80), in the outlet of described burner cooling water backwater channel (81)
It is provided with burner coolant outlet flange.
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| CN201410781757.9A CN104531221B (en) | 2014-12-16 | 2014-12-16 | A kind of gasification furnace structure that can simultaneously process fine coal and water-coal-slurry |
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| CN201410781757.9A CN104531221B (en) | 2014-12-16 | 2014-12-16 | A kind of gasification furnace structure that can simultaneously process fine coal and water-coal-slurry |
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| CN105062562B (en) * | 2015-07-22 | 2017-08-15 | 武汉天和技术股份有限公司 | Handle the plasma gasification furnace and technique of danger wastes |
| CN105695655A (en) * | 2016-04-11 | 2016-06-22 | 北京神雾环境能源科技集团股份有限公司 | System and method for preparing clean gas base vertical furnace reducing gas through coal gasification |
| CN106118752A (en) * | 2016-08-30 | 2016-11-16 | 安徽科达洁能股份有限公司 | A kind of coal gasifier |
| CN107937034A (en) * | 2017-11-08 | 2018-04-20 | 上海锅炉厂有限公司 | A kind of more burner entrained flow gasification furnace ignitings go into operation integrated apparatus and the method for feeding intake |
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| BR112012018826B1 (en) * | 2009-12-25 | 2022-10-04 | Changzheng Engineering Co., Ltd | GASIFICATION APPARATUS FOR SOLID FUEL AND HIGH TEMPERATURE AND HIGH PRESSURE GASIFICATION METHOD FOR DRY POWDER OF CARBONACEOUS MATERIAL |
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