CN107434985A - A kind of processing system and method for fluidized gasification converter fly ash and lime-ash - Google Patents
A kind of processing system and method for fluidized gasification converter fly ash and lime-ash Download PDFInfo
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- CN107434985A CN107434985A CN201610353913.0A CN201610353913A CN107434985A CN 107434985 A CN107434985 A CN 107434985A CN 201610353913 A CN201610353913 A CN 201610353913A CN 107434985 A CN107434985 A CN 107434985A
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- flying dust
- ash
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- supply pipe
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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
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—Apparatus; Plants
-
- 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
-
- 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
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- 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
- C10J3/86—Other features combined with waste-heat boilers
-
- 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
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
- C10J2300/1606—Combustion processes
-
- 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
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1625—Integration of gasification processes with another plant or parts within the plant with solids treatment
- C10J2300/1628—Ash post-treatment
Abstract
The invention discloses the processing system and method for a kind of fluidized gasification converter fly ash and lime-ash, including synthesizing gas processing system, also include the fusion pool for being arranged on the fluidized-bed gasification furnace bottom and being connected with its slag notch, the flying dust outlet of the synthesis gas processing system returns boiler tube road connection fluidized-bed gasification furnace by flying dust or fusion pool forms flying dust and returns furnace system.The processing method utilizes processing system, lime-ash caused by fluidized-bed gasification furnace is fallen directly into fusion pool, caused flying dust is returned after furnace system is handled by flying dust and is sent into fusion pool, in the presence of high-temperature gas and oxygen, carbon residue and lime-ash in flying dust fully burn, and form molten mass.The processing system and method for the present invention, trade waste flying dust caused by fluidized-bed gasification furnace and lime-ash are converted into the raw material of production mineral wool, turn waste into wealth, waste is set to become resource, with good environmental benefit, and the production cost of mineral wool can be reduced, and huge economic benefit will be produced.
Description
Technical field
The invention belongs to processing engineering technology field, relates generally to Coal Gasification, solid industrial offal treatment, especially
It is related to the recycling treatment of fluidized gasification converter fly ash and lime-ash.
Background technology
At present, at home in coal gasification field, mainly gasification furnace is entered with fluidized-bed gasification furnace come the broken coal that gasifies, broken coal
Afterwards, in the presence of gasifying agent, fluidisation be in fluidized state, mass transfer, heat-transfer effect are good, be rapidly completed burning, pyrolysis,
The complicated physics such as synthesis gas and chemical process are generated, produces synthesis gas or industrial combustion gas.
Although fluidized-bed gasification furnace in terms of gasification high activity, low order coal, has other Coal Gasification Technologies incomparable
Advantage, but fluidized-bed gasification furnace can be also produced in substantial amounts of lime-ash and flying dust, the flying dust particularly in synthesis gas, led to
Often through synthesis gas processing system processing after directly discharge, still, in flying dust in contain substantial amounts of carbon residue, remaining carbon is even
More than 30%, this is not only caused, and fluidized-bed gasification furnace gasification efficiency is low, more seriously the flying dust of high remaining carbon
Serious environmental pollution can be caused, makes the environmental protection pressure that getting worse is faced using unit of fluidized-bed gasification furnace, is survived
Difficulty, it also significantly limit the application and development of fluidized-bed gasification furnace.
At present, Publication No. CN204569854U utility model patent proposes a kind of fluidized-bed gasification furnace, the fluidisation
Bed gasification furnace can make lime-ash liquefied, vitreum, so as to solve the emission problem of lime-ash, but can not handle winged
Carbon residue grey and therein.Existing gasification technology field and environmental technology field also did to handle the flying dust of high remaining carbon
Many trials, the raw material such as using flying dust as the auxiliary fuel of fluidized-bed gasification furnace or as haydite production, etc., but
It is that, because the carbon atom arrangement of carbon residue in fluidized gasification converter fly ash is changed, above method can not make carbon residue
Burning is complete, also cannot effectively handle the flying dust of high remaining carbon.
The another patent application for having a Publication No. CN103450946A discloses a kind of stream for being used to have independent combustion chamber
Change the device of bed gasification reaction method, the device sets a combustion chamber, for the carbon residue and lime-ash in the flying dust that burns.But
It is that combustion chamber is provided separately with fluidized-bed gasification furnace, in use, needing to take out lime-ash from gasification furnace, then send
Enter combustion chamber, can both cause energy loss, increase improvement cost again, the high-temperature gas caused by after-burner that burns is necessary
Gasification furnace could be entered after cooling, further increase energy expenditure and production cost.In addition, the combustion chamber only adds
Air or oxygen is combustion-supporting, it is difficult to the carbon residue in flying dust is reacted complete, and final combustion chamber can produce substantial amounts of solid-state
Lime-ash, it is still industrial solid wastes, need to further handles, it is impossible to directly discharges.
Therefore, at present both at home and abroad also without it is a kind of can effectively it is treatment fluidized bed gasify converter fly ash and its in carbon residue, together
When can also be by the technology of its recycling together with lime-ash.
The content of the invention
The purpose of the present invention is for technological deficiency present in prior art, first aspect, there is provided one kind can be simultaneously
The system of flying dust and lime-ash in treatment fluidized bed gasification furnace, including synthesis gas processing system, in addition to it is arranged on the stream
Change bed gasification furnace bottom and the fusion pool being connected with its slag notch, the flying dust outlet of the synthesis gas processing system is by flying
Ash returns boiler tube road connection fluidized-bed gasification furnace or fusion pool forms flying dust and returns furnace system.
The accommodation space for being used for containing molten mass that the fusion pool is surrounded by pool wall and pool wall is formed, and fusion pool top opens
Mouth is used for collecting lime-ash, and the perforate for being used for receiving flying dust is provided with pool wall upper position, and lower position is arranged provided with molten mass
Outlet, bottom are provided with conductive hearth electrode, and pool wall, which is provided with, is used for installing high-temperature gas air supply pipe and oxygen air supply pipe
Air supply pipe mounting hole.
The pool wall of the fusion pool is made up of the water-cooled housing and refractory liner of steel.
The air supply pipe mounting hole is multiple, is distributed on pool wall, is preferably symmetrical arranged, is installed in air supply pipe mounting hole
There is air supply pipe, the air supply pipe is sleeve pipe, and centre is high-temperature gas air supply pipe, and periphery is oxygen air supply pipe, High Temperature Gas
There is annular gas passageway between body air supply pipe and oxygen air supply pipe, the gas vent of air supply pipe is towards the accommodating of fusion pool
Space.
The oxygen air supply pipe supply is oxygen or oxygen-enriched air；The high-temperature gas air supply pipe supply is High Temperature Gas
Body, the high-temperature gas are to use transferred-arc plasma generator, untransferable arc plasma generator or AC/DC electric arc
It is caused, or with caused by gas burner, coal-fired combusting device or oil burner.
The synthesis gas processing system includes cyclone separator, waste heat boiler and fiber bag precipitator, cyclone separator,
It is sequentially connected between waste heat boiler and fiber bag precipitator by syngas outlet and entrance, cyclone separator, waste heat boiler
The outlet of the flying dust of stove and fiber bag precipitator is returned boiler tube road with the flying dust respectively and is connected, and flying dust returns boiler tube road and fusion pool
Perforate be connected.
The synthesis gas processing system also includes the one cyclonic being located between fluidized-bed gasification furnace and the cyclone separator
Separator, the entrance of primary cyclone are connected with the synthesis gas of fluidized-bed gasification furnace and flying dust outlet, its top
Syngas outlet is connected with the entrance of cyclone separator, the flying dust outlet connection fluidized-bed gasification furnace of bottom.
Also include the mineral wool process units being connected with the molten mass outlet of fusion pool.
Second aspect, the present invention provide it is a kind of can the method for flying dust and lime-ash in treatment fluidized bed gasification furnace simultaneously, make
With above-mentioned processing system, lime-ash caused by fluidized-bed gasification furnace is fallen directly into fusion pool, caused flying dust is by flying
Ash is sent into fusion pool after returning furnace system processing, in the presence of high-temperature gas and oxygen (or oxygen-enriched air), flying dust
In carbon residue and lime-ash fully burn, formed molten mass；
Preferably, including in detail below step：
1) fluidized-bed gasification furnace, is started, coal produces synthesis gas, flying dust and lime-ash by gasification；
2), lime-ash is fallen into fusion pool, and synthesis gas and flying dust pass through cyclone separator, waste heat boiler and cloth-bag type successively
Deduster separates synthesis gas and flying dust, and synthesis gas enters synthesis gas collection device, and flying dust returns boiler tube road by flying dust and flown
Fusion pool is sent under the driving of grey conveying worm；Preferably, it is pre- to first pass through primary cyclone for synthesis gas and flying dust
Separation, synthesis gas after pre-separation successively by cyclone separator, waste heat boiler and fiber bag precipitator make synthesis gas and
Flying dust separates, and the flying dust after pre-separation returns to fluidized-bed gasification furnace and burnt again；
3), start high-temperature gas air supply pipe and oxygen air supply pipe, it is (or rich that high-temperature gas and oxygen are sprayed into fusion pool
Oxygen air)；
4), under the collective effect of high-temperature gas and oxygen (or oxygen-enriched air), the carbon residue and lime-ash in flying dust are abundant
Burning, obtains molten mass；
It is further preferred that the molten mass obtained to step 4) is arranged as raw material together with other mineral wool raw materials by molten mass
Outlet is drained into mineral wool process units, prepares mineral wool.
The third aspect, the present invention provide a kind of mineral wool, are that the molten mass obtained by above-mentioned processing method is used as raw material system
It is standby to obtain.
Compared with prior art, the processing system and method for fluidized gasification converter fly ash and lime-ash proposed by the present invention, will
Trade waste flying dust caused by fluidized-bed gasification furnace is converted into the raw material of production mineral wool with lime-ash, turns waste into wealth, makes
Waste becomes resource, the problem of not only solving the huge environmental protection pressure for jeopardizing relevant enterprise existence, has good
Environmental benefit, and the production cost of mineral wool can be reduced, and huge economic benefit will be produced.
Brief description of the drawings
Fig. 1 show the processing system composition schematic diagram of fluidized gasification converter fly ash and lime-ash of the present invention；
Fig. 2 show the structural representation of fusion pool in processing system of the present invention；
Fig. 3 show the scheme of installation of processing system high temperature gas air supply pipe of the present invention and oxygen air supply pipe.
Reference is expressed as in figure：
1- fluidized-bed gasification furnaces；21- primary cyclones；2- cyclone separators；3- waste heat boilers；4- cloth-bag types remove
Dirt device；5- flying dusts return boiler tube road；6- flying dust conveying worms；7- fusion pools；8- high-temperature gas air supply pipes；9- oxygen
Air supply pipe；10- mineral wool process units；11- housings；12- heat preserving and insulating material layers；13- refractory masses；14-
Molten mass outlet；15- conduction hearth electrodes；16- annular gas passageways；17- is open；18- air supply pipe mounting holes.
Embodiment
The present invention proposes a kind of processing system and method for fluidized gasification converter fly ash and lime-ash, and stove system is returned by flying dust
System, the fusion pool installed in fluidized-bed gasification furnace bottom is sent to by the high remaining carbon flying dust of fluidized-bed gasification furnace, molten
In melt pool, the flying dust of lime-ash and high remaining carbon that fluidized-bed gasification furnace top is fallen, the High Temperature Gas being passed through in fusion pool
Body is with the collective effect of oxygen (or oxygen-enriched air), making the carbon residue in flying dust obtain completely burned, flying dust and lime-ash
Molten mass is molten into, composition and the mineral wool material composition of molten mass are approached, and the other originals of mineral wool are added into molten mass
Material, after then being discharged by molten mass outlet, fall into mineral wool preparation system, in high speed centrifugation power and high-pressure blast
Under the action of high-speed airflow that machine provides, molten mass fibrosis is completed, preparation system and technique through follow-up mineral wool are raw
The standard compliant mineral wool product of output.
Below by way of the drawings and specific embodiments, the present invention is described in further detail.But these embodiments are absolutely not
Limit the invention.
The present invention provides a kind of fluidized gasification converter fly ash and the method and system of cinder resourceization processing.As Fig. 1-3 institute
Show, the processing system includes the fusion pool 7 installed in fluidized-bed gasification furnace bottom, flying dust returns furnace system and mineral wool life
Produce device 10.Wherein, flying dust returns furnace system and returns boiler tube road 5 and synthesis gas processing system including flying dust.Synthesize gas disposal
System includes cyclone separator 2, waste heat boiler 3, fiber bag precipitator 4 etc., flying dust return boiler tube road 5 respectively with whirlwind
The flying dust outlet connection of separator 2, waste heat boiler 3, fiber bag precipitator 4 etc..Fusion pool 7 is through flying dust helical feed
Machine 6 returns boiler tube road 5 by flying dust and is connected with synthesis gas processing system, and flying dust is sent into fusion pool 7.Slag
Cotton process units 10 is arranged on the downstream of the molten mass outlet 14 set in fusion pool 7.Height is installed in fusion pool 7
Wet body air supply pipe 8 and oxygen air supply pipe 9.
Synthesis gas and the flying dust outlet of fluidized-bed gasification furnace 1 are connected with the entrance of primary cyclone 21, and synthesis gas is entered
Row pre-separation, the syngas outlet of primary cyclone 21 are connected with the entrance of cyclone separator 2, cyclonic separation
The syngas outlet of device 2 is connected with the entrance of waste heat boiler 3, and syngas outlet and the cloth-bag type of waste heat boiler 3 remove
The entrance of dirt device 4 is connected, finally, the syngas outlet connection synthesis gas collection device (figure of fiber bag precipitator 4
Not shown in).The flying dust outlet of primary cyclone 21 is connected with fluidized-bed gasification furnace 1, the flying dust that will be collected into
Fluidized-bed gasification furnace is returned to burn again；And the flying dust of cyclone separator 2, waste heat boiler 3 and fiber bag precipitator 4
Outlet is both connected to flying dust and returned on boiler tube road 5, then is connected by flying dust conveying worm 6 with the opening 17 of fusion pool 7.
Synthesis gas caused by fluidized-bed gasification furnace 1 is with flying dust successively through primary cyclone 21, cyclone separator 2, used heat
The processing of boiler 3 and fiber bag precipitator 4, the flying dust entrained by synthesis gas is removed, cyclone separator 2, used heat
The flying dust that boiler 3 and fiber bag precipitator 4 are collected returns boiler tube road 5 through flying dust, in the effect of flying dust conveying worm 6
Lower feeding fusion pool 7, the flying dust that primary cyclone 21 is collected return to fluidized-bed gasification furnace 1 and burnt again, purify
Synthesis gas afterwards is sent into synthesis gas collection device.
Flying dust return boiler tube road 5 can be equipped with refractory material steel pipe or external application heat preserving and insulating material it is heat-resisting
Steel pipe (it is required that 1000 DEG C of heatproof, interior smooth), passes through flange and cyclone separator 2, waste heat boiler 3 and cloth-bag type
The equipment that the equivalance of deduster 4 has flying dust connects, and in the presence of flying dust conveying worm 6, flying dust is sent into fusion pool
In 7, flying dust conveying worm 6 can also be gas blower pipe.
Fusion pool 7 is flying dust and lime-ash storage, burning, the key device melted, with fluidized-bed gasification furnace burner hearth one
Set.The pool wall of molten slag bath 7 is made up of the water-cooled housing 11 and refractory liner of steel, and it is accommodating that pool wall surrounds one
Space, for containing molten mass.The water-cooled housing 11 of pool wall uses water-cooling jacket form, and deionized water is passed through in chuck
Cooled down.The refractory liner of pool wall includes the refractory masses 13 positioned at internal layer and the insulation positioned at outer layer
Material layer 12.
The top of fusion pool 7 is provided with the perforate 17 returned boiler tube road 5 with flying dust and be connected, for receiving the flying dust for returning stove.Melting
The side wall of pond 7 is provided with 2-6 air supply pipe mounting hole 18, for installing high-temperature gas air supply pipe 8 and oxygen air supply pipe 9.
The bottom of fusion pool 7 is provided with the molten mass outlet 14 for being used for molten mass discharge, and bottom is also equipped with conductive hearth electrode 15.
Mineral wool process units 10 is provided with the downstream of molten mass outlet 14.
Oxygen air supply pipe 9 is located in the air supply pipe mounting hole 18 in the side wall of fusion pool 7, is water-cooling jacket cooling tube, in
Between be set with high-temperature gas air supply pipe 8, leave annular gas passageway 16 therebetween, the oxygen in oxygen air supply pipe 9
Gas or oxygen-enriched air flow through at a high speed.
High-temperature gas air supply pipe 8 is plasma generator (such as transferred-arc plasma generation that can produce high-temperature gas
Device or non-transferred arc plasma generator), alternating current arc or direct-current arc, gas burner, coal-fired combusting device or combustion
Oil burner.
Oxygen air supply pipe 9 and high-temperature gas air supply pipe 8 are arranged symmetrically in the side wall of fusion pool 7, and gas vent is (i.e.
Nozzle) towards the accommodation space of fusion pool 7, power and quantity can be according to lime-ash and flying dust treating capacity and treatment temperature
It is adjusted.
Mineral wool process units 10 is using ripe mineral wool production equipment and cotton technique processed, for will be in fusion pool melt
Into mineral wool, melt needed for cotton processed flies from what fusion pool was discharged for melt body and other Raw material processings prepared needed for mineral wool
The molten mass of ash and lime-ash composition, steam needed for cotton processed come from gasification furnace accessory substance steam, heat needed for cotton curing oven processed
Gas comes from gasification furnace air preheater, only need to choose corresponding production capacity according to the amount of molten mass in fusion pool 7
Equipment.
Utilize the method for the treatment fluidized bed gasification converter fly ash of the processing system of the present invention and lime-ash, including step in detail below：
1) fluidized-bed gasification furnace 1, is started, coal produces synthesis gas by gasification, while produces flying dust and lime-ash；
2), lime-ash is fallen into fusion pool 7, and synthesis gas and flying dust first pass through primary cyclone and carry out pre-separation, in advance
Synthesis gas after separation again successively by cyclone separator 2, waste heat boiler 3 and fiber bag precipitator 4 make synthesis gas and
Flying dust is completely separated, and synthesis gas enters synthesis gas collection device, and the flying dust that primary cyclone is collected is re-fed into stream
Change bed gasification furnace to burn again, the flying dust that cyclone separator 2, waste heat boiler 3 and fiber bag precipitator 4 are collected is by flying
Ash returns boiler tube road 5 and fusion pool 7 is sent under the driving of flying dust conveying worm 6；
3), start high-temperature gas air supply pipe 8 and oxygen air supply pipe 9, high-temperature gas and oxygen are sprayed into fusion pool 7
(or oxygen-enriched air)；
4), under the collective effect of high-temperature gas and oxygen (or oxygen-enriched air), the internal temperature of fusion pool 7 is up to 1500 DEG C
More than, the carbon residue in flying dust and lime-ash is fully burned, obtain molten mass, heat caused by burning is conveyed to stream
Change bed gasification furnace, for gasification of coal；
5) silica, alundum (Al2O3), calcium oxide, magnesia, three oxygen, are added in the molten mass into fusion pool
Change other raw materials for preparing mineral wool such as two iron and carry out quenched, make after wherein composition meets the preparation requirement of mineral wool, will
Molten mass after quenched is drained into mineral wool process units 10 by molten mass outlet 14.
Embodiment one：
The fluidized gasification converter fly ash of the present embodiment and the processing system of lime-ash, for fluidized gasification converter fly ash and lime-ash
Recycling treatment.
Fusion pool 7 is tightly connected by flange and fluidized-bed gasification furnace 1, and conductive hearth electrode 15 is grounded well.Flying dust
Return flying dust outlet of the boiler tube road 5 respectively with cyclone separator 2, waste heat boiler 3, sack cleaner 4 and pass through flange seal
Connection, and keep unimpeded, flying dust is smoothly drained into pipeline.Flying dust returns boiler tube road 5 and passes through method with fusion pool 7
Orchid is tightly connected, it is ensured that in the presence of flying dust conveying worm 6 or gas blower pipe, flying dust can smoothly be sent to molten
In melt pool 7.High-temperature gas air supply pipe 8 and oxygen air supply pipe 9 are installed in place in fusion pool 7, good seal, high
The water supply with plasma generator or AC/DC arc electrodes, supply, power supply, the control respectively of wet body air supply pipe 8
System processed, or combustion gas, fuel oil, fine coal pipeline connect, and oxygen air supply pipe 9 supplies with oxygen (or oxygen-enriched air)
System connects, in good working state.Mineral wool process units 10 is arranged in fusion pool according to cotton technological requirement processed
7 downstream of molten mass outlet 14, and ensure that temperature when molten mass enters mineral wool process units 10 meets cotton processed
Technological requirement.Mineral wool process units 10 is in good working state.
Fluidized-bed gasification furnace 1 starts, and into normal operating conditions, the lime-ash in fluidized-bed gasification furnace falls into fusion pool 7,
Flying dust caused by fluidized-bed gasification furnace carries out pre-separation through primary cyclone 21, and the flying dust after pre-separation is re-fed into
Fluidized-bed gasification furnace burns again, and the synthesis gas after pre-separation is again successively through cyclone separator 2, waste heat boiler 3 and cloth
Bag dust collector 4 is handled, and last flying dust returns boiler tube road 5 by flying dust and is sent into fusion pool 7, starts high-temperature gas air supply pipe 8,
Normal operating conditions is made it into, high-temperature gas is sprayed into fusion pool 7, starts oxygen air supply pipe 9, start to melting
Supply oxygen (or oxygen-enriched air) in pond 7.Under high-temperature gas and oxygen (or oxygen-enriched air) collective effect, melting
Temperature in pond 7 is up to more than 1500 DEG C, the carbon residue completely burned in lime-ash and flying dust, and is melted, and is melted
Body.Because the composition of molten mass is similar with the material composition for preparing mineral wool, therefore, titanium dioxide is added into molten mass
Other mineral wool raw materials progress such as silicon, alundum (Al2O3), calcium oxide, magnesia, di-iron trioxide are quenched, make melting
Composition in body forms (such as the raw material of mineral wool《GBT 25975-2010 external wall external thermal insulation asbestos products》
Regulation in standard), and molten mass viscosity is adjusted in below 25Pas, make molten mass good fluidity.After quenched
Molten mass flowed out through molten mass outlet 14, fall on request on the four-roller centrifuge of mineral wool process units 10,
Under the action of high-speed airflow that high speed centrifugation power and high pressure positive blower provide, molten mass fibrosis is completed, is filled through follow-up cotton processed
Put and technique, produce standard compliant mineral wool product.
Using the processing system and processing method of the present invention, carbon residue is by 100% burning in flying dust caused by fluidized-bed gasification furnace
Completely, caused defeated time fluidized-bed gasification furnace of heat in the carbon residue in flying dust and lime-ash combustion process, energy is provided for it,
The remaining composition that burns all turns into molten mass, and is utilized as producing one of raw material of mineral wool, and production is met
The mineral wool of national standard.Fluidized-bed gasification furnace is no longer the production source of solid waste in the processing system of the present invention,
But the production source of mineral wool raw material, realize solid waste resource recovery.
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and not to the limit of embodiment
It is fixed.For those of ordinary skill in the field, other not similar shapes can also be made on the basis of the above description
The change or variation of formula.There is no necessity and possibility to exhaust all the enbodiments.And it is aobvious thus to extend out
And among the change or variation being clear to are still in the protection domain of the invention.
Claims (10)
1. the processing system of a kind of fluidized gasification converter fly ash and lime-ash, including synthesis gas processing system, it is characterised in that
Also include the fusion pool for being arranged on the fluidized-bed gasification furnace bottom and being connected with its slag notch, the synthesis gas processing system
The flying dust outlet of system returns boiler tube road connection fluidized-bed gasification furnace by flying dust or fusion pool forms flying dust and returns furnace system.
2. processing system according to claim 1, it is characterised in that the fusion pool is surrounded by pool wall and pool wall
Formed for containing the accommodation space of molten mass, fusion pool open topped is used for collecting lime-ash, is installed in pool wall upper bit
There is the perforate for receiving flying dust, lower position is provided with molten mass outlet, and bottom is provided with conductive hearth electrode, pool wall
It is provided with the air supply pipe mounting hole for being used for installing high-temperature gas air supply pipe and oxygen air supply pipe.
3. processing system according to claim 2, it is characterised in that the pool wall of the fusion pool by steel water cooling
Housing and refractory liner are made.
4. the processing system according to Claims 2 or 3, it is characterised in that the air supply pipe mounting hole to be multiple,
It is distributed on pool wall, is preferably symmetrical arranged, air supply pipe is installed in air supply pipe mounting hole, the air supply pipe is sleeve pipe,
Centre is high-temperature gas air supply pipe, and periphery is oxygen air supply pipe, has ring between high-temperature gas air supply pipe and oxygen air supply pipe
Shape clearance channel, the gas vent of air supply pipe is towards the accommodation space of fusion pool.
5. system according to claim 4, it is characterised in that：Oxygen air supply pipe supply be oxygen or it is oxygen-enriched
Air；The high-temperature gas air supply pipe supply is high-temperature gas, and the high-temperature gas is sent out with transferred-arc plasma
Caused by raw device, untransferable arc plasma generator or AC/DC electric arc, or with gas burner, coal-fired combusting device
Or caused by oil burner.
6. according to any processing systems of claim 2-5, it is characterised in that the synthesis gas processing system includes
Cyclone separator, waste heat boiler and fiber bag precipitator, between cyclone separator, waste heat boiler and fiber bag precipitator
It is sequentially connected by syngas outlet and entrance, the flying dust outlet of cyclone separator, waste heat boiler and fiber bag precipitator
Return boiler tube road with the flying dust respectively to be connected, flying dust returns boiler tube road and with the perforate of fusion pool is connected.
7. processing system according to claim 6, it is characterised in that the synthesis gas processing system also includes being located at
Primary cyclone between fluidized-bed gasification furnace and the cyclone separator, the entrance and stream of primary cyclone
The synthesis gas and flying dust outlet for changing bed gasification furnace are connected, and the syngas outlet on its top is connected with the entrance of cyclone separator,
The flying dust outlet connection fluidized-bed gasification furnace of bottom.
8. according to any processing systems of claim 1-7, it is characterised in that also include the molten mass with fusion pool
The mineral wool process units of outlet connection.
9. the processing method of a kind of fluidized gasification converter fly ash and lime-ash, it is characterised in that usage right requires 1-8
Any processing system, lime-ash caused by fluidized-bed gasification furnace is fallen directly into fusion pool, and caused flying dust passes through
Flying dust is sent into fusion pool after returning furnace system processing, in the presence of high-temperature gas and oxygen (or oxygen-enriched air), is flown
Carbon residue and lime-ash in ash fully burn, and form molten mass；
Preferably, including in detail below step：
1) fluidized-bed gasification furnace, is started, coal produces synthesis gas, flying dust and lime-ash by gasification；
2), lime-ash is fallen into fusion pool, and synthesis gas and flying dust pass through cyclone separator, waste heat boiler and cloth-bag type successively
Deduster separates synthesis gas and flying dust, and synthesis gas enters synthesis gas collection device, and flying dust returns boiler tube road by flying dust and flown
Fusion pool is sent under the driving of grey conveying worm；Preferably, it is pre- to first pass through primary cyclone for synthesis gas and flying dust
Separation, synthesis gas after pre-separation successively by cyclone separator, waste heat boiler and fiber bag precipitator make synthesis gas and
Flying dust separates, and the flying dust after pre-separation returns to fluidized-bed gasification furnace and burnt again；
3), start high-temperature gas air supply pipe and oxygen air supply pipe, it is (or rich that high-temperature gas and oxygen are sprayed into fusion pool
Oxygen air)；
4), under the collective effect of high-temperature gas and oxygen (or oxygen-enriched air), the carbon residue and lime-ash in flying dust are abundant
Burning, obtains molten mass；
It is further preferred that the molten mass obtained to step 4) is arranged as raw material together with other mineral wool raw materials by molten mass
Outlet is drained into mineral wool process units, prepares mineral wool.
10. a kind of mineral wool, it is characterised in that be the molten mass conduct that the processing method as described in claim 9 obtains
Raw material is prepared.
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| CN109959016A (en) * | 2019-04-18 | 2019-07-02 | 中国恩菲工程技术有限公司 | A kind of processing system of hazardous waste |
| CN112111304A (en) * | 2020-09-24 | 2020-12-22 | 新奥科技发展有限公司 | Fly ash circulating gasification system and recovery treatment method of fly ash in coal gas |
| WO2021004601A1 (en) | 2019-07-05 | 2021-01-14 | Sumitomo SHI FW Energia Oy | An arrangement for and a method of recycling mineral wool waste |
| CN112460993A (en) * | 2020-11-30 | 2021-03-09 | 中国航天空气动力技术研究院 | Three-phase alternating current transferred arc plasma heating and melting method and system |
| CN113549472A (en) * | 2021-08-31 | 2021-10-26 | 宁夏大学 | Novel process and device for treating miscellaneous salt |
| CN114713592A (en) * | 2022-03-31 | 2022-07-08 | 天津华能杨柳青热电有限责任公司 | Device and method for preparing mineral wool by utilizing waste ash of waste incineration power plant |
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