CN106811236A - A kind of fluidized-bed gasification furnace and its construction method - Google Patents

A kind of fluidized-bed gasification furnace and its construction method Download PDF

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Publication number
CN106811236A
CN106811236A CN201710060252.7A CN201710060252A CN106811236A CN 106811236 A CN106811236 A CN 106811236A CN 201710060252 A CN201710060252 A CN 201710060252A CN 106811236 A CN106811236 A CN 106811236A
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China
Prior art keywords
fire resisting
lift
fluidized
laying
resistance
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CN201710060252.7A
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CN106811236B (en
Inventor
毛燕东
李克忠
刘雷
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ENN Science and Technology Development Co Ltd
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ENN Science and Technology Development Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46Gasification of granular or pulverulent flues in suspension
    • C10J3/54Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
    • C10J3/56Apparatus; Plants
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/46Gasification of granular or pulverulent flues in suspension
    • C10J3/48Apparatus; Plants
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2200/00Details of gasification apparatus
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00Details of gasification processes
    • C10J2300/09Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913Carbonaceous raw material
    • C10J2300/093Coal
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10JPRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00Details of gasification processes
    • C10J2300/09Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0983Additives
    • C10J2300/0986Catalysts

Abstract

The present invention discloses a kind of fluidized-bed gasification furnace and its construction method, it is related to catalytic coal gasifaction technical field, so that while difficulty of construction is simplified, the liner of the resistance to material alkali corrosion resistance of the existing catalytic gasification fluidized-bed gasification furnace of solution, rub resistance ability are weak, the caducous problem of the liner of resistance to material.The fluidized-bed gasification furnace includes furnace binding and furnace chamber, and furnace chamber includes air chamber area, dense bed material area and dilute-phase zone, and furnace binding includes pressure hull and the liner of resistance to material, contains alkali resistant materials in the liner of resistance to material, and including shirt portion in shirt portion and second in first;Shirt portion includes the first fire resisting LIFT contacted with dense bed material area and dilute-phase zone and the laying fireproof bricks floor contacted with the inwall of pressure hull in second, and the first fire resisting LIFT is located between the inwall of pressure hull and laying fireproof bricks layer.The fluidized-bed gasification furnace makes in first shirt portion in shirt portion and second in segmented fashion;The fluidized-bed gasification furnace that the present invention is provided is used in catalytic coal gasifaction technology.

Description

A kind of fluidized-bed gasification furnace and its construction method
Technical field
The present invention relates to Coal Gasification Technology field, more particularly to a kind of fluidized-bed gasification furnace and its construction method.
Background technology
Fluidized-bed gasification furnace is a kind of device for carrying out catalytic gasification to coal using fluidized-bed process, and it includes furnace binding And the furnace chamber in furnace binding, furnace binding includes metal shell and the liner of resistance to material that is located inside metal shell.
In general, the liner of resistance to material is cast in pressure casing by the way of amorphous refractory one-piece casting Portion, this not only causes that the construction of the liner of resistance to material is more convenient, also causes that the liner of the resistance to material globality for pouring is relatively good.But, by It is to be poured in the form of indefinite form built-up in the liner of resistance to material of furnace binding, its is wear-resistant, alkali corrosion resistance poor performance, makes When must carry out catalytic coal gasifaction in fluidized-bed gasification furnace, under the collision of dusty gas of the liner of resistance to material in furnace chamber, easily make Be lined with sheet form in resistance to material and come off, and cause dreg removing system to block, influence system stable operation;And, in fluid bed gas , it is necessary to load substantial amounts of base metal catalysts in coal dust when carrying out catalytic coal gasifaction in change stove, to ensure that coal dust can be smooth Carried out in fluidized-bed gasification furnace urge gasification reaction, but because the base metal catalysts loaded in coal dust are relatively more so that The alkalescence of the cinder that coal dust gasification process is produced is stronger, easily produces erosion to the liner of resistance to material, causes the cracking of material, dredges Pine, damage.
The content of the invention
It is an object of the invention to provide a kind of fluidized-bed gasification furnace and its construction method, to simplify the same of difficulty of construction When, the liner of the resistance to material alkali corrosion resistance of existing fluidized-bed gasification furnace is solved, rub resistance ability is weak, the problem of the cracking etc. that comes off.
To achieve these goals, the present invention provides following technical scheme:
A kind of fluidized-bed gasification furnace, including furnace binding and the furnace chamber in furnace binding, the furnace chamber include gas Room area, dense bed material area and dilute-phase zone, the furnace binding include pressure hull and are located in the pressure hull and the stove The liner of resistance to material of chamber contact;Contain alkali resistant materials in the material that the liner of resistance to material is used;The liner of resistance to material include along Shirt portion in shirt portion and second in the first of furnace chamber directional spreding from low to high;The shirt portion correspondence air chamber in described first Area, the shirt portion correspondence dense bed material area and the dilute-phase zone in described second;
Shirt portion includes the first fire resisting LIFT and the laying fireproof bricks layer as wear-and corrosion-resistant structure in described second, described Laying fireproof bricks floor is contacted with the dense bed material area and dilute-phase zone respectively, the first fire resisting LIFT and the pressure hull Inwall contact, the first fire resisting LIFT be located at the pressure hull inwall and the laying fireproof bricks layer between.
Compared with prior art, in the fluidized-bed gasification furnace that the present invention is provided, contain in the material that the liner of resistance to material is used Alkali resistant materials so that when carrying out catalytic coal gasification in fluidized-bed gasification furnace, even if the alkali metal catalysis loaded in coal dust Agent is more again, and also the liner of resistance to material will not be caused to corrode;Meanwhile, in the fluidized-bed gasification furnace that the present invention is provided, shirt portion bag in second The first fire resisting LIFT and the laying fireproof bricks layer as wear-and corrosion-resistant structure are included, the laying fireproof bricks layer difference of shirt portion in second Contacted with dense bed material area and dilute-phase zone, and laying fireproof bricks layer is formed by laying fireproof bricks, refractory brick has been before this Through by high-temperature firing, this causes fluidized-bed gasification furnace when catalytic coal gasification is carried out, and laying fireproof bricks layer can bear Hot environment in fluidized-bed gasification furnace, and will not because of inside and outside the body of heater of fluidized-bed gasification furnace, local temperature difference it is big, Huo Zheqi Stove, docking process the part reason such as thermal stress is larger and occur it is damaged, come off, so, the integrality of shirt portion and sealing in second Property is relatively good, with fabulous rub resistance ability and anti-permeability performance.Further, since the first fire resisting LIFT is located at pneumatic shell Between inwall and the laying fireproof bricks layer of body, therefore, the first fire resisting LIFT not only easy construction, and in work progress, Laying fireproof bricks layer can also play support and firm effect to the first fire resisting LIFT for pouring, first resistance to so as to facilitate Fiery LIFT is poured.
A kind of construction method of the fluidized-bed gasification furnace provided present invention also offers above-mentioned technical proposal, including:
One pressure hull is provided;
3rd fire resisting LIFT is made in the part in the inwall correspondence air chamber area of the pressure hull using casting method, Second fire resisting LIFT is made towards the part of the furnace chamber in the 3rd fire resisting LIFT using casting method so that described the Two fire resisting LIFTs and the 3rd fire resisting LIFT constitute shirt portion in first;
Shirt portion in second is made using discrete method;Wherein, make shirt portion in described second each section includes
Using laying fireproof bricks method, the part in the correspondence dense bed material area and correspondence are described dilute in the pressure hull What the part of phase region made laying fireproof bricks layer builds sublayer by laying bricks or stones so that between the inwall for building sublayer and the pressure hull by laying bricks or stones With pouring gap;Using casting method it is described pour gap in make the first fire resisting LIFT pour sublayer.
Compared with prior art, the beneficial effect and above-mentioned technology of the construction method of the fluidized-bed gasification furnace that the present invention is provided The beneficial effect of the fluidized-bed gasification furnace that scheme is provided is identical, will not be described here.
Brief description of the drawings
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes a part of the invention, this hair Bright schematic description and description does not constitute inappropriate limitation of the present invention for explaining the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the fluidized-bed gasification furnace that the embodiment of the present invention one is provided
Fig. 2 is that the concrete structure of the part in the fluidized-bed gasification furnace correspondence air chamber area that the embodiment of the present invention one is provided is illustrated Figure;
Fig. 3 is part, the close phase of correspondence correspondence in the fluidized-bed gasification furnace correspondence distribution grid area that the embodiment of the present invention one is provided The concrete structure schematic diagram of the part in bed area;
Fig. 4 is part, first reducing district of correspondence of the fluidized-bed gasification furnace correspondence dilute-phase zone that the embodiment of the present invention one is provided Part, correspondence diffusion region part, correspondence the second reducing district part concrete structure schematic diagram.
Specific embodiment
In order to further illustrate the embodiment of the present invention, it is described in detail with reference to Figure of description.Below in conjunction with Accompanying drawing in the embodiment of the present invention, is clearly and completely described, it is clear that retouched to the technical scheme in the embodiment of the present invention The embodiment stated is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, this The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention The scope of protection.
Embodiment one
Fig. 1 is referred to, a kind of fluidized-bed gasification furnace is the embodiment of the invention provides, including furnace binding and positioned at body of heater Furnace chamber in structure, furnace chamber includes containing air chamber area I, dense bed material area III and dilute-phase zone IV;Furnace binding includes pressure hull 1 and the liner of resistance to material 2, contain alkali resistant materials in the material that the liner of resistance to material 2 is used, the liner of resistance to material includes in first shirt portion 21 and the Shirt portion 22 in two, directional spreding of the shirt portion 22 along furnace chamber from low to high in shirt portion 21 and second in first;The correspondence of the liner of resistance to material 2 The part of air chamber area I is defined as shirt portion 21 in first, the part definition of the liner of resistance to material correspondence dense bed material area III and dilute-phase zone IV It is shirt portion 22 in second;Wherein, shirt portion 22 includes the first fire resisting LIFT 22B and the fire resisting as wear-and corrosion-resistant structure in second Brick masonry layer 22A, laying fireproof bricks floor 22A contact with dense bed material area III and dilute-phase zone IV respectively, the first fire resisting LIFT 22B is contacted with the inwall of pressure hull 1, and the first fire resisting LIFT 22B is located at the inwall and laying fireproof bricks layer of pressure hull 1 Between 22A;Wherein,
It is understood that the hyperbaric environment in order to bear fluidized-bed gasification furnace, the generally stainless steel material of pressure hull 1 It is made.
When catalytic coal gasification is carried out, the furnace chamber of fluidized-bed gasification furnace is hot environment, carrying alkali metal catalyst Coal dust there is catalytic coal gasification in fluidized-bed gasification furnace, generation basic clinker and carry the gas of solid particle (mixed system for carrying the gas of solid particle is defined as dusty gas), the alkali resistant materials in the liner of resistance to material 2 can subtract The caustic corrosion of the coal dust of few supported catalyst and the slag containing alkaline matter of generation to the liner of resistance to material, meanwhile, fire resisting is brick Hot environment, dusty gas in building floor 22A and can mitigating dense bed material area III and dilute-phase zone IV to the abrasion of the liner of resistance to material and Destruction.
Understood by the process of the catalytic coal gasification after the fluidized-bed gasification furnace for providing the present embodiment, due to resistance to material Contain alkali resistant materials in the material that liner 2 is used so that when carrying out catalytic coal gasification in fluidized-bed gasification furnace, even if The base metal catalysts loaded in coal dust are more again, and also the liner of resistance to material will not be caused to corrode, meanwhile, the fluidisation that the present embodiment is provided In bed gasification furnace, shirt portion 22 includes the first fire resisting LIFT 22B and the laying fireproof bricks layer as wear-and corrosion-resistant structure in second 22A, the laying fireproof bricks floor of shirt portion 22 is contacted with dense bed material area III and dilute-phase zone IV respectively in second, because fire resisting is brick A layer 22A is built to be formed by laying fireproof bricks, and refractory brick passes through high-temperature firing before this, this causes fluidized gasification When catalytic coal gasification is carried out, laying fireproof bricks layer 22A can bear the hot environment in fluidized-bed gasification furnace to stove, and not Because the body of heater of fluidized-bed gasification furnace is inside and outside, local temperature difference is big, or the reasons such as stove, docking process part thermal stress be larger can be opened And breakage occurs, comes off, so, the integrality and sealing of shirt portion 22 are relatively good in second, with fabulous antifriction scrape along Anti-erosion, penetrating power.Further, since the first fire resisting LIFT 22B is located at the inwall and laying fireproof bricks layer of pressure hull 1 Between 22A, and in general pouring material is poured in the form of indefinite form, obtains corresponding LIFT, therefore, the first fire resisting LIFT 22B not only easy constructions, and in work progress, laying fireproof bricks layer 22A can also to pouring first Fire resisting LIFT 22B plays support and firm effect, so as to facilitate pouring for the first fire resisting LIFT 22B.
And consider that the effect of the different zones of the furnace chamber of fluidized-bed gasification furnace and correspondence environment are different, it is right separately below Shirt portion 22 is described in detail in terms of structure and material two in shirt portion 21 and second in first.
First, shirt portion 21 in first:
The bottom of furnace chamber, effect of the basic clinker that catalytic coal gasification is produced in gravity are located in view of air chamber area I Under, the region is easily accessible, therefore, Fig. 2 is referred to, shirt portion 21 includes being poured for the second fire resisting of alkali corrosion resistance in first Layer 21A, when basic clinker is settled under gravity, can be poured by the outer fire resisting for directly being contacted with air chamber area I Build layer, realize the alkaline-resisting protection to shirt portion 21 in first.
Optionally, it is hot environment to ensure at furnace chamber, shirt portion 21 can not only include being used for alkali corrosion resistance in first The second fire resisting LIFT 21A, can also include for insulation the 3rd fire resisting LIFT 21B, be intended merely to avoid stove The stainless steel metal furnace wall of outermost layer pressure hull 1 is conducted or be radiated to heat of high temperature in chamber causes outer wall overtemperature, the second fire resisting LIFT 21A is contacted with air chamber area I, and the 3rd fire resisting LIFT 21B is contacted with the inwall of pressure hull 1, the 3rd fire resisting LIFT 21B is located between the inwall of pressure hull 1 and outer fire resisting LIFT 21A, and this can not only enable the second fire resisting LIFT 21A Enough the 3rd fire resisting LIFT 21B of protection can be carried out from being corroded by basic clinker using the 3rd fire resisting LIFT 21B Insulation, it is to avoid the overtemperature of pressure hull 1.
Exemplary, the material that pours that the second fire resisting LIFT 21A and the 3rd fire resisting LIFT 21B are used is generally not Sizing refractory material, what the 3rd fire resisting LIFT 21B was used pours material for corundum based refractory materials;Second fire resisting LIFT 21A includes composite aggregate, fine powder, Ultramicro-powder (such as corundum powder), cement and the dispersant of arbitrary proportion;Wherein, composite aggregate It is the corundum based refractory materials containing calcium hexaluminate and/or magnesium aluminate spinel.Specifically, the second fire resisting LIFT 21A is used Pour material, can be matched according to actual conditions, if in terms of mass fraction, including 60 parts -80 parts composite aggregate, 20 parts -30 parts of fine powder, 5 parts -10 parts of Ultramicro-powder, 5 parts -10 parts of cement, 0.1 part -0.2 part of dispersant;Wherein, this reality Apply the fine powder in example refer to can all by No. five sieve, and containing can pass through No. six sieve be no less than 95% powder;Ultramicro-powder is general Refer to agent particle size below 10 μm, and the powder material with micromeritics feature, as fine powder, Ultramicro-powder, dispersant tool Body species, then can carry out reasonable selection according to actually pouring, and the particle diameter of the fine powder for appearing below or the particle diameter of Ultramicro-powder are also same Sample is determined using the standard.
The second fire resisting LIFT 21A in the present embodiment by add in corundum based refractory materials calcium hexaluminate and/or Magnesium aluminate spinel so that the composite aggregate for obtaining has good intensity, heat-insulating property and alkali corrosion resistance performance, on this basis Composite aggregate is used cooperatively with subdivision and Ultramicro-powder so that the second fire resisting LIFT 21A can also form the pouring structure of densification, from And improve the intensity and globality of the second fire resisting LIFT 21A.
Optionally, in the second fire resisting LIFT 21A, the particle diameter distribution of composite aggregate, the particle diameter distribution of fine powder, Ultramicro-powder Particle diameter distribution, the particle diameter distribution of cement are different with the particle diameter distribution of dispersant, the distribution of the particle being distributed by different-grain diameter, make Different-grain diameter distribution particle can be to homogeneous distribution of particles under, gap present in the second fire resisting LIFT for being formed is entered Row filling, it becomes possible to so that the structure of the second fire resisting LIFT 21A for pouring is more fine and close, it is to avoid unnecessary hole is deposited .Further, in what the second fire resisting LIFT 21A was used pour material, cement can add, it is also possible to be not added with;When addition water After mud, cement can utilize the gel agglomerates performance that itself has, to pouring after the second fire resisting LIFT 21A carry out well It is moulding, it is ensured that the globality of the second fire resisting LIFT 21A.The second fire resisting LIFT 21A is additionally, since after the completion of pouring, Need to carry out cure process, in this process, cement enables to the setting rate of the second fire resisting LIFT 21A faster.
In addition, the second fire resisting LIFT 21A is provided with multiple second is radially expanded seam and multiple second axial expansions seam;Each Second is radially expanded the line expansion stitched for absorbing the second fire resisting LIFT 21A in the radial direction generation of furnace chamber, each second axial direction Dilatation joint is used to absorb the line expansion that the second fire resisting LIFT 21A occurs in the axial direction of furnace chamber, to avoid because the second fire resisting is poured A layer 21A is built to expand and cause shirt portion 22 in first to deform;Similarly, the 3rd fire resisting LIFT is provided with the multiple 3rd radially Dilatation joint and multiple 3rd axial expansion seams;Each the 3rd be radially expanded seam for absorb the 3rd fire resisting LIFT 21B in furnace chamber Radial direction occur line expansion, each the 3rd axial expansion stitch for absorb the 3rd fire resisting LIFT 21B furnace chamber axial direction send out Raw line expansion;It is worth noting that, multiple second to be radially expanded seam, multiple second axial expansions seam, multiple 3rd radial directions swollen Expansion joint (E.J.) and multiple 3rd axial expansion seams mutually stagger, it is ensured that each dilatation joint will not form shirt portion 21 in insertion whole first Gap so that the multiple second that basic clinker will not be provided with by the second fire resisting LIFT 21A is radially expanded seam and multiple second Axial expansion seam is entered into the 3rd fire resisting LIFT 21B, will not also cause that the 3rd fire resisting LIFT 21B produces insulation bad Problem.Optionally, either second it is radially expanded seam, the 3rd is radially expanded seam in the present embodiment, or the second axial expansion seam, The seam shape of the 3rd axial expansion seam is varied, generally z shapes seam, so can preferably absorb the line of correspondence LIFT Expansion.
In addition, each second be radially expanded seam, each second axial expansion seam, each the 3rd be radially expanded seam and each the Three axial expansions seam in be filled with ceramic fiber paper, so one side can by ceramic fiber paper obstruction basic clinker and High-temperature gas enters corresponding dilatation joint, the infringement caused to correspondence LIFT, on the other hand can also be by ceramic fiber paper During compensation high temperature, the microdilatancy of the pouring material in the second fire resisting LIFT 21A and the 3rd fire resisting LIFT 21B prevents second resistance to There is crackle in the surface of fiery LIFT 21A surfaces and the 3rd fire resisting LIFT 21B.
Exemplary, each second is radially expanded seam, each the 3rd gap width respectively less than 2mm for being radially expanded seam, this Sample just can guarantee that correspondence is radially expanded seam and gives full play to the line expansion that absorption correspondence fire resisting LIFT radially occurs in furnace chamber, but The performance of correspondence fire resisting LIFT will not be influenceed because dilatation joint is wide.
Similarly, the gap width of the width of each second axial expansion seam and each the 3rd axial expansion seam is respectively less than 2mm, So just can guarantee that respective shaft gives full play to dilatation joint and absorb the line expansion that correspondence fire resisting LIFT axially occurs in furnace chamber, but The performance of correspondence fire resisting LIFT will not be influenceed because dilatation joint is wide again.
It should be noted that in order to ensure the fire resisting effect of the second fire resisting LIFT 21A and the 3rd fire resisting LIFT 21B with And integrality, the face crack of the second fire resisting LIFT 21A and the 3rd fire resisting LIFT 21B is no more than 2mm.And, in order to Ensure that the temperature in resistance to furnace chamber meets the temperature range of catalytic coal gasification, typically will be to pouring that shirt portion 21 in first is used The thermal conductivity factor for building material is adjusted, to control the thickness of shirt portion 21 in first, so as to ensure the pressure-resistant of fluidized-bed gasification furnace The outside wall temperature of housing 1 is at 250 DEG C -300 DEG C, and dew point temperature corresponding more than or equal to the air chamber vapor partial pressure of fluidized-bed gasification furnace Degree.
Exemplary, what the outer fire resisting LIFT 21A of shirt portion 21 was used in first pours material includes arbitrary proportion Composite aggregate, fine powder, Ultramicro-powder, cement and dispersant;What the 3rd fire resisting LIFT 21B was used pours material for corundum Refractory material;Wherein, composite aggregate is that the corundum containing different grain size calcium hexaluminate and/or different grain size magnesium aluminate spinel is resistance to Fiery material, the gross thickness of shirt portion 21 is 100mm-250mm in first, and specific thickness is according to using material setting.
2nd, shirt portion 22 in second:
It is anaerobic area in view of dense bed material area III, belongs to reducing atmosphere, the second liner correspondence dense bed material area III's Part needs that the corrosion of alkali ash-cinder can be resisted, therefore, in second in the part of the corresponding dense bed material area III of shirt portion 22, refractory brick The refractory brick for building layer 22A by laying bricks or stones fires composite aggregate, fine powder, Ultramicro-powder (such as Al of the material including arbitrary proportion2O3Micro mist) and addition Agent, what the first fire resisting LIFT 22B was used pour composite aggregate of the material including arbitrary proportion, fine powder, powder, bonding agent, Dispersant and agglutinant;Wherein, composite aggregate is the corundum based refractory materials containing calcium hexaluminate and/or magnesium aluminate spinel.By Material is fired in the laying fireproof bricks refractory brick that is used of layer 22A and the first fire resisting LIFT 22B is used pours material Contain composite aggregate, and composite aggregate is the corundum based refractory materials containing calcium hexaluminate and/or magnesium aluminate spinel, therefore, Fire resisting LIFT 22B has good intensity, heat-insulating property and alkali corrosion resistance performance in laying fireproof bricks layer 22A and first.
And on this basis, the refractory brick that laying fireproof bricks layer 22A is used also contains fine powder, ultra micro in firing material Powder, by the cooperation of Ultramicro-powder and composite aggregate so that the refractory brick of firing not only has good intensity and alkali corrosion resistance Can, and can also be formed densification brick laying structure, therefore, by laying fireproof bricks into laying fireproof bricks layer 22A structure ratio It is finer and close, with good wear-resistant, resistance to infiltration and corrosion-resistant effect;Further, since the refractory brick of laying fireproof bricks layer 22A burns Fire resisting LIFT 22B's pours containing the composite aggregate with alkali corrosion resistance in material, and in second in prepared material and first Fire resisting LIFT 22B is also located between the inwall of pressure hull 1 and laying fireproof bricks layer 22A, and this causes that fire resisting is poured in second Layer 22B can also aid in bis- erosions of resistance alkali ash-cinder of laying fireproof bricks layer 22A.
Optionally, the grain of the particle diameter distribution of composite aggregate, the particle diameter distribution of fine powder, the particle diameter distribution of Ultramicro-powder and additive Footpath distribution is different, the distribution of the particle being so distributed by different-grain diameter so that the particle of different-grain diameter distribution can be to homogeneous Under distribution of particles, gap present in the first fire resisting LIFT 22B for being formed is filled, it becomes possible to so that pour The structure of the first fire resisting LIFT 22B is more fine and close, it is to avoid unnecessary hole is present.
Exemplary, the refractory brick of laying fireproof bricks layer 22A is fired in material, in terms of mass fraction, wherein containing 45 parts- 60 parts of composite aggregate, 40 parts -50 parts of fines, 5 parts -10 parts of Ultramicro-powder, as additive, be according to actual conditions addition Can.In what the first fire resisting LIFT 22B was used pour material, in terms of mass fraction, wherein containing 60 parts -80 parts of Composite Bone Material, 20 parts -30 parts of fines, 5 parts -10 parts of Ultramicro-powder, as the consumption of bonding agent, dispersant and agglutinant, according to routine Add.
In addition, the stability in order to improve laying fireproof bricks layer 22A, laying fireproof bricks layer 22A is including along furnace chamber The multiple of short transverse arrangement build sublayer by laying bricks or stones, laying fireproof bricks layer 22A also includes being intervally arranged along the short transverse of furnace chamber Multiple fire resisting brick plates, between two neighboring fire resisting brick plate set one build sublayer by laying bricks or stones, it is resistance to this makes it possible to pass through each Fiery brick plate is supported and strengthened to building sublayer by laying bricks or stones, so as to ensure by building the steady of the laying fireproof bricks layer 22A that sublayer is constituted by laying bricks or stones Qualitative and intensity;Optionally, build by laying bricks or stones and ceramic fibre bed course is provided between sublayer and fire resisting supporting brick, ceramic fibre bed course can be Common ceramic fiber paper, or other ceramic thermal insulation materials, by building setting between sublayer and fire resisting supporting brick by laying bricks or stones Ceramic fibre bed course, to reduce by fire resisting brick plate importing furnace chamber and build the heat of sublayer by laying bricks or stones, so as to ensure whole refractory brick The uniformity that layer 22A is heated is built by laying bricks or stones, it is to avoid the uneven infringement caused to laying fireproof bricks layer 22A of being heated, while avoiding furnace chamber On pressure hull of the interior heat through asking flap to cause pressure-resistant stainless steel material to be made.
Exemplary, every 2.5m between adjacent two pieces of fire resisting brick plates, being not higher than for sublayer is built by laying bricks or stones to limit each 2.5m。
It is understood that multiple fire resisting brick plates of laying fireproof bricks layer 22A are usually to be fixed in the form of welding The inwall of pressure hull 1, so ensure that fire resisting brick plate to build sublayer by laying bricks or stones and provides enough support forces, but in view of pressure-resistant Housing 1 can apply certain stress by fire resisting brick plate to laying fireproof bricks layer 22A, cause laying fireproof bricks layer 22A to exist not Ballast, the present embodiment sets the first fire resisting LIFT by between the inwall of pressure hull 1 and laying fireproof bricks layer 22A 22B so that the first fire resisting LIFT 22B goes back while the erosion of bis- resistance alkali ash-cinders of laying fireproof bricks layer 22A is aided in The stress that pressure hull 1 is applied to laying fireproof bricks layer 22A by fire resisting brick plate can be buffered, it is ensured that laying fireproof bricks layer The globality and stability of 22A.
It is worth noting that, the brickwork joint of the two neighboring fire brick layer of laying fireproof bricks layer 22A staggers;First fire resisting is poured Layer 22B is provided with multiple first and is radially expanded seam and multiple first axial dilatation joints;Each first is radially expanded seam for absorbing the The line expansion that one fire resisting LIFT 22B occurs in the radial direction of furnace chamber, each first axial dilatation joint is used for the first fire resisting of absorption and pours Build the line expansion that layer 22B occurs in the axial direction of furnace chamber;Multiple first be radially expanded seam, multiple first axial directions dilatation joint respectively with it is resistance to The brickwork joint that firebrick builds layer 22A by laying bricks or stones mutually staggers, it is to avoid first is radially expanded seam forms logical with the brickwork joint of laying fireproof bricks layer 22A Seam, and cause the bad of insulation, it is also possible to avoid brickwork joint and multiple axial direction of the gas-solid mixing system by laying fireproof bricks layer 22A Outer dilatation joint is entered into the first fire resisting LIFT 22B;Herein it should be noted that the gas-solid mixing system of emulsion zone can claim It is gas-solid particle, and the gas-solid mixing system of dilute-phase zone is dusty gas.
Optionally, first it is radially expanded seam and the shape of multiple first axial dilatation joints is varied in the present embodiment, one As be z shapes seam, so can preferably absorb the expansion of the first fire resisting LIFT 22B corresponding lines.
Optionally, each first is radially expanded in seam and each first axial dilatation joint filled with ceramic fiber paper, this On the one hand sample can hinder gas-solid particle and high-temperature gas to enter corresponding dilatation joint by ceramic fiber paper, and correspondence is poured The infringement that layer is caused, pouring in the first fire resisting LIFT 22B when on the other hand can also compensate high temperature by ceramic fiber paper The microdilatancy of material, prevents the first fire resisting LIFT 22B surfaces from crackle occur.
Exemplary, the interlayer gap that the two neighboring fire brick layer of laying fireproof bricks layer 22A is formed is defined as level Seam, the width of horizontal joint is less than 1.5mm, and the gap formed between the two neighboring refractory brick of same layer is defined as vertical lap seam, vertically The width in gap is less than 1mm;Wherein, the width of horizontal joint and the bearing of trend of vertical clearance gap are identical, the width of vertical clearance gap Degree direction is identical with the bearing of trend of horizontal joint.In addition, first be radially expanded seam, the first axial dilatation joint seam shape it is various Various, generally z shapes are stitched, and so can preferably absorb the line expansion of correspondence LIFT.
In general, built by laying bricks or stones by fire clay between the refractory brick of laying fireproof bricks layer 22A, fire clay is generally six aluminic acids Calcium is the corundum based refractory materials of aggregate, this makes it possible to cause fire clay that there is certain alkali resistant corrosion and resistance to fire action, but The steadiness of this masonry way is not especially good, therefore, the brick of every block of refractory brick of laying fireproof bricks layer 22A in the present embodiment Face is provided with location structure;Location structure be the first location lug or locating slot, and same refractory brick in, the current brick face of refractory brick Location lug is set, and refractory brick brick face corresponding with current brick face sets locating slot, and so adjacent two blocks of refractory brick can just pass through The mode that location lug and locating slot are engaged is realized building by laying bricks or stones so that adjacent two blocks of refractory brick can combine closely, so as to improve resistance to Firebrick builds the globality and steadiness of layer 22A by laying bricks or stones.
It should be noted that in order to ensure that the temperature in resistance to furnace chamber meets the temperature range of catalytic coal gasification, typically The thermal conductivity factor for pouring material that shirt portion 22 in second is used is adjusted, to control the thickness of shirt portion 22 in second, So as to ensure fluidized-bed gasification furnace pressure hull 1 outside wall temperature at 210 DEG C -250 DEG C, and more than or equal to fluidized-bed gasification furnace The corresponding dew-point temperature of air chamber vapor partial pressure.
It is exemplary, in second in the part of the corresponding dense bed material area III of shirt portion 22 laying fireproof bricks floor 22A fire resisting Brick fires material includes the composite aggregate and Ultramicro-powder of arbitrary proportion, and what fire resisting LIFT 22B was used in second pours material Level including arbitrary proportion is with composite aggregate, powder (such as schmigel, Al2O3Powder), bonding agent and dispersant;Laying fireproof bricks Layer 22A thickness be 100mm-150mm, in second the thickness of fire resisting LIFT 22B be 100mm-150mm, specific thickness according to Set using material.
Optionally, Fig. 1 is referred to, in the fluidized-bed gasification furnace that the present embodiment is provided, gas vent is provided with the top of furnace chamber 101, the bottom of furnace chamber is provided with deslagging outlet 102, and furnace chamber not only includes air chamber area I, dense bed material area III and dilute-phase zone IV, also Including distribution grid area II and diffusion region VI, and along the direction from low to high of furnace chamber, furnace chamber includes air chamber area I, distribution grid area II, dense bed material area III, dilute-phase zone IV and diffusion region VI, the liner of resistance to material 2 second in shirt portion 21 and distribution grid area II, close phase Bed area III, dilute-phase zone IV are corresponding with diffusion region VI;Wherein,
The part of the corresponding air chamber area I of pressure hull 1 is provided with first gas entrance 112, first gas entrance 112 and air chamber area I is connected;First gas entrance 112 is used to inject combustible gas, air or gasifying agent;The portion of the corresponding distribution grid area II of pressure hull 1 Lighting-up tuyere 113 and flying dust entrance 122 are arranged with, lighting-up tuyere 113 and flying dust entrance 122 are connected with distribution grid area II respectively, lighted a fire Mouth 113 is used to light combustible gas, and flying dust entrance 113 is used to inject the flying dust isolated from the gas of the outflow of gas vent 101;
The part of the corresponding dense bed material area III of pressure hull 1 is provided with second gas entrance 121 and coal powder entrance 111, second Gas access 121 and coal powder entrance 111 are connected with dense bed material area III respectively;Coal powder entrance 111 is used to inject supported catalyst Coal dust, the catalyst that coal dust is loaded generally base metal catalysts, second gas entrance 121 is used to inject from gas vent Hydrogen and carbon monoxide that the gas of 101 outflows is isolated.
During specific works, first pass through first gas entrance 112 and inject combustible gas (or air) to the part of air chamber area I, make Obtain combustible gas to be distributed in whole furnace chamber, then lighted combustible gas by lighting-up tuyere 113, baker is carried out to furnace chamber so that stove Chamber keeps high temperature, after required temperature is reached so that the coal dust of supported catalyst enters fluidized-bed gasification furnace through coal powder entrance 111 Dense bed material area III, the mixed gas of superheated steam and oxygen enter air inlet chamber area as gasifying agent from first gas entrance 112 I, under the conditions of certain temperature, pressure, there is gasification, conversion, methanation in coal dust in the presence of catalyst with gasifying agent reaction Deng reaction, the available gas compositions and carbon dioxide, a small amount of hydrogen sulfide and ammonia etc. such as methane, carbon monoxide, hydrogen are generated, these Gas is discharged by gas vent 101, and is separated so that flying dust, carbon monoxide and hydrogen are separated, by an oxidation Carbon and hydrogen are reacted through bed by second gas entrance 121 into dense bed material area III so that gasifying agent is by fully profit With, and flying dust is injected into distribution grid area II from flying dust entrance 113 so that flying dust can continue to burning, plays and makes full use of coal dust Effect so that coal dust can gasify as far as possible, to avoid unnecessary waste;In addition, remaining semicoke or alkali after gasification Property lime-ash from deslagging outlet 102 discharge.
Specifically, after coal dust occurs the reaction such as gasification, conversion, methanation in the presence of catalyst with gasifying agent reaction, The gas of generation can drive the lighter solid particle of a part of mass ratio, be moved to the top of furnace chamber together, but due to diffusion Than larger, gas is moved to when herein the radial dimension of area VI, and translational speed can be reduced slowly, thus can be to being mingled with gas Solid particle sufficient sedimentation time is provided so that solid particle can be fallen into fluidized-bed layer herein proceed it is anti- Should.
In view of not only having gaseous substance in distribution grid area II, the part of dense bed material area III, also with substantial amounts of solid Body particle, in order to avoid these materials are in the case of HTHP, flow dead is formed on the surface of the liner of resistance to material, optional , Fig. 1 and Tu is referred to, in second in shirt portion 22, the face that laying fireproof bricks 22A is contacted with distribution grid area II, and/or refractory brick Build the face that floor 22A contact with dense bed material area III by laying bricks or stones and offer multiple diversion grooves for changing fluid flow direction respectively, When the face that gaseous substance and solid particle flow are contacted to laying fireproof bricks floor 22A with distribution grid area II, and/or laying fireproof bricks The face that floor 22A is contacted with dense bed material area III, it becomes possible to carried out to gaseous substance and solid particle using diversion groove thereon Water conservancy diversion, to change its type of flow, the back-mixing of enhancing gaseous substance and solid particle at laying fireproof bricks layer 22A is acted on, from And reduce the formation of flow dead.
Optionally, the in-profile of diversion groove is generally cambered surface so that the type of flow of gaseous substance and solid particle Can uniformly be changed in diversion groove, and be unlikely to, because the type of flow changes excessive, to cause to laying fireproof bricks The impact of layer 22A.
In addition, the refractory brick of the laying fireproof bricks layer 22A of the part of the corresponding dilute-phase zone IV of shirt portion 22 fires material in second Corundum aggregate, fine powder and Ultramicro-powder including arbitrary proportion;First fire resisting of the part of the corresponding dilute-phase zone IV of shirt portion 22 in second What LIFT 22B was used pours corundum based refractory materials of the material including arbitrary proportion, powder, bonding agent, dispersant and burning Knot agent,
Exemplary, in terms of mass fraction, in second in the part of the corresponding dilute-phase zone IV of shirt portion 22, laying fireproof bricks layer The refractory brick of 22A fire material include 45 parts -60 parts corundum aggregate, 40 parts -50 parts of corundum powder and 5 parts -10 parts it is super Micro mist;In terms of mass fraction, in second in the part of the corresponding dilute-phase zone IV of shirt portion 22, what the first fire resisting LIFT 22B was used Pouring material includes 60 parts -80 parts of corundum based refractory materials, 20 parts -30 parts of fine powder, 5 parts -10 parts of bonding agent (such as water Mud), 0.1 part -0.2 part of dispersant, can be added according to actual needs as agglutinant.
Optionally, in second in the laying fireproof bricks layer 22A of the part of the corresponding dilute-phase zone IV of shirt portion 22 corundum aggregate grain Footpath distribution, the particle diameter distribution of fine powder are different with the particle diameter distribution of Ultramicro-powder, the distribution of the particle being so distributed by different-grain diameter, Under enabling the particle that different-grain diameter is distributed to homogeneous distribution of particles, the corresponding dilute-phase zone IV of shirt portion 22 in second for being formed Gap present in part laying fireproof bricks layer 22A is filled, it becomes possible to so that the correspondence of shirt portion 22 in build by laying bricks or stones second The laying fireproof bricks layer 22A structures of the part of dilute-phase zone IV are more fine and close, it is to avoid unnecessary hole is present;Similarly, in second The particle diameter distribution of corundum based refractory materials in first fire resisting LIFT 22B of the part of the corresponding dilute-phase zone IV of shirt portion 22, powder Particle diameter distribution, the particle diameter distribution of bonding agent, the particle diameter distribution of dispersant are different with the particle diameter distribution of agglutinant, it is also possible to so that pouring In second for building in part the first fire resisting LIFT 22B of the corresponding dilute-phase zone IV of shirt portion 22 corundum based refractory materials structure It is more fine and close, it is to avoid unnecessary hole is present.
It should be noted that the radical length difference in order to reduce dilute-phase zone IV and diffusion region VI, causes to corrosion-proof lining Impact, the first reducing district V gradually increased for radical length is provided between dilute-phase zone IV and diffusion region VI, similarly, diffusion The second reducing district VII that radical length is gradually reduced is provided between area VI and the top of furnace chamber.
The various pieces of the corrosion-proof lining of the fluidized-bed gasification furnace for providing the present embodiment below are further detailed, And in order to hereafter be easy to description, Fig. 1-Fig. 4 being referred to, the region according to the correspondence furnace chamber of pressure hull 1 is different, by pressure hull 1 It is divided into air chamber pressure hull 11, distribution grid pressure hull 12, dense bed material pressure hull 13, dilute phase pressure hull 14, first to become Footpath pressure hull 15, the diffusion reducing pressure hull 17 of pressure hull 16 and second, and according to the region of the correspondence furnace chamber of the liner of resistance to material 1 Difference, shirt portion 21 is the air chamber liner of resistance to material in first, and shirt portion 22 includes that the distribution grid liner of resistance to material 221, dense bed material are resistance in second In material liner 222, the dilute phase liner of resistance to material 223, the first reducing liner of resistance to material 224, the diffusion resistance to material of reducing of the liner of resistance to material 225 and second Lining 226.
It is oxygen-containing area in view of distribution grid area II, belongs to oxidizing atmosphere, the material selected by the liner of resistance to material there need to be oxygen The corrosion of alkali ash-cinder can be resisted under atmosphere, the corresponding dense bed material area III of the dense bed material liner of resistance to material 222 is essentially distribution grid Top anaerobic area, the atmosphere in the region belongs to reducing atmosphere, and the part of the second liner correspondence dense bed material area III needs to resist The corrosion of alkali ash-cinder, therefore, refer to Fig. 3, laying fireproof bricks layer 221A and the resistance to material of dense bed material of the distribution grid liner of resistance to material The refractory brick firing material that the laying fireproof bricks layer 222A of liner is used is identical, and the first fire resisting of the distribution grid liner of resistance to material is poured What layer 221B and the first fire resisting LIFT 222B of the dense bed material liner of resistance to material were used pour, and material is identical, and its advantage is joined See the material related description of the correspondence dense bed material liner of resistance to material 222.
Certainly, it can be not only general that what the first fire resisting LIFT 222B of the dense bed material liner of resistance to material was used pours material Logical corundum pouring material (with the first fire resisting LIFT 223B of the dilute phase liner of resistance to material used to pour material consistent), also may be used Think Alkali resistant castable refractory (with the first fire resisting LIFT 221B of the distribution grid liner of resistance to material used to pour material consistent), simply When using Alkali resistant castable refractory, cost can increase.
Optionally, Fig. 4 is referred to, because dilute-phase zone IV, the first reducing district V, diffusion region VI and the second reducing district VII are Anaerobic area, belongs to reducing atmosphere, and fly ash content containing alkali is low, therefore, dilute-phase zone IV, the first reducing district V, diffusion region VI and second become Footpath area VII substantially will not be to the corresponding dilute phase liner of resistance to material 223, the first reducing liner of resistance to material 224, the diffusion liner of resistance to material 225, the The two reducing liners of resistance to material 226 cause caustic corrosion;Therefore, laying fireproof bricks layer 223A, the resistance to material of the first reducing of the dilute phase liner of resistance to material Laying fireproof bricks layer 224A, the laying fireproof bricks layer 225A of the diffusion liner of resistance to material of liner and the fire resisting of the second reducing liner of resistance to material The firing material of the refractory brick that brick masonry layer 226A is used is identical;First fire resisting LIFT 223B of the dilute phase liner of resistance to material, First fire resisting LIFT 224B of the one reducing liner of resistance to material, the first fire resisting LIFT 225B and the second reducing of the diffusion liner of resistance to material It is identical that what the first fire resisting LIFT 226B of the liner of resistance to material was used pours material.
It should be noted that because dilute-phase zone IV, the first reducing district V, diffusion region VI and the second reducing district VII are already belonged to Outside the region of catalytic coal gasification, the problem that need not consider whether to form flow dead herein, therefore, the dilute phase liner of resistance to material The changes of laying fireproof bricks layer 224A and first in face, the first reducing liner of resistance to material that contacts with dilute-phase zone of laying fireproof bricks layer 223A Face, the second reducing liner of resistance to material in the face, the laying fireproof bricks floor 225A of the diffusion liner of resistance to material and diffusion region contacts of the contact of footpath area The faces that are contacted with the second reducing district of laying fireproof bricks layer 226A need not make diversion groove.
Embodiment two
Fig. 1 is referred to, the embodiment of the present invention additionally provides a kind of construction method of fluidized-bed gasification furnace;Specifically include as follows Step:
The first step a, there is provided pressure hull 1;The part system of air chamber area I is corresponded in the inwall of pressure hull 1 using casting method Make the 3rd fire resisting LIFT 21B, making the second fire resisting towards the part of furnace chamber in the 3rd fire resisting LIFT 21B using casting method pours Build a layer 21A so that the second fire resisting LIFT 21A and the 3rd fire resisting LIFT 21B constitutes shirt portion 21 in first;
Second step, shirt portion 22 in second is made using discrete method;Wherein, make shirt portion 22 in second each section includes:
Existed using laying fireproof bricks method:The part of correspondence dense bed material area III is with correspondence dilute-phase zone IV's in pressure hull 1 Part makes laying fireproof bricks layer 22A and builds sublayer by laying bricks or stones so that build by laying bricks or stones between the inwall of sublayer and pressure hull 1 between having and pouring Gap;The first fire resisting LIFT 22B is made in gap is poured using casting method pours sublayer.
Compared with prior art, the beneficial effect of the construction method of fluidized-bed gasification furnace provided in an embodiment of the present invention with it is upper The beneficial effect for stating the fluidized-bed gasification furnace of the offer of embodiment one is identical, will not be described here.
Optionally, when also the first reducing district V and the second reducing district VII is included in the furnace chamber of fluidized-bed gasification furnace, second Step, also including making fire resisting in the first reducing pressure hull 15 and in the second reducing pressure hull 17 using laying fireproof bricks method Brick masonry layer 22A so that laying fireproof bricks layer 22A inwall, dense bed material pressure hulls respectively with distribution grid pressure hull 12 Have between 13 inwall, the inwall of dilute phase pressure hull 14, the inwall of diffusion pressure hull 16 and pour gap;Using casting method The first fire resisting LIFT 22B is made in gap is poured.
Optionally, distribution grid area II, dense bed material area III, dilute phase are corresponded in pressure hull 1 using laying fireproof bricks method The part of area IV and diffusion region VI makes when building sublayer by laying bricks or stones of laying fireproof bricks floor 22A, and form is built by laying bricks or stones using what the fissure of displacement was built by laying bricks or stones, by What block building method successively made laying fireproof bricks layer builds sublayer by laying bricks or stones.
For the construction method of the apparent description liner of resistance to material, separately below to the system of the different piece of the liner of resistance to material It is described in detail as method.
First, shirt portion 21 in first:
Fig. 1 and 2 is referred to, shirt portion 21 is that the air chamber liner of resistance to material staged and layered when making is carried out in first, is specifically included Following steps:
S11:Inwall using casting method segmentation in air chamber pressure hull 11 makes the 3rd fire resisting LIFT 21B, wherein, by Segmentation is poured furnace bottom upwards, and segmentation is when the inwall of air chamber pressure hull 11 makes the 3rd fire resisting LIFT 21B, resistance in air chamber The inwall of pressure shell body 11 gathers welding anchor studs, and inwall in air chamber pressure hull 11 splices and pours mould, splices gap Control in 1.5mm, and it is intersegmental away from control in 0.5m-1m, specific height combine stainless steel furnace wall material, linear expansion coefficient and every The design of hot material material, linear expansion coefficient and dilatation joint and determine, pouring for indefinite form state is then imported in mould to pouring Note material, vibrates in time, after vibrating and finishing 24h, is moved in form removal, by that analogy, is finally completed the 3rd fire resisting LIFT 21B's Cast, every section must continuously once-cast finish, to be stayed during pouring construction set the 3rd be radially expanded stitch and the 3rd axle in it is swollen Expansion joint (E.J.);
In addition, the 3rd fire resisting LIFT 21B is poured after finishing, and natural curing can preferentially be done after -5 days 2 days at room temperature It is dry removing absorption water, with reference to water and partially crystallizable water.
S12:Part the second fire resisting of making for being segmented the 3rd fire resisting LIFT 21B towards air chamber area I using casting method is poured Layer 21A;
Second fire resisting LIFT 21A's pours the corundum based refractory materials that material is indefinite form state, and it plays insulation Effect;Wherein, it is segmented upwards by furnace bottom and is poured, and segmentation makes the in the 3rd fire resisting LIFT 21B towards the part of air chamber area I During two fire resisting LIFT 21A, gathered in the inwall of air chamber pressure hull 11 and weld anchor studs, and in air chamber pressure hull 11 Wall splices and pours mould, the control of splicing gap in 1.5mm, and it is intersegmental away from control in 0.5m-1m, specific height combines stainless Steel stove wall material matter, the design of linear expansion coefficient and heat-barrier material material, linear expansion coefficient and dilatation joint and determine, then to pouring The mould material of indefinite form state is imported in mould, is vibrated in time, after vibrating and finishing 24h, moved in form removal, by that analogy, most The cast of the second fire resisting LIFT 21A is completed eventually, and every section continuously once-cast must finish, and to be stayed during pouring construction and set footpath Outside dilatation joint and the outside dilatation joint of axle, herein it should be noted that should ensure that the footpath of the second fire resisting LIFT 21A outwards expands Seam, the outside dilatation joint of axle are radially expanded seam with the second of the 3rd fire resisting LIFT 21B and the second axial expansion seam mutually staggers, and keeps away Exempt to form straight joint, concrete reason is described referring to the corresponding part of embodiment one.
In addition, the second fire resisting LIFT 21A is poured after finishing, and natural curing can preferentially be done after -5 days 2 days at room temperature It is dry removing absorption water, with reference to water and partially crystallizable water.
It should be noted that the air chamber liner of resistance to material is finished in making first can carry out baker according to drying out curve, it is ensured that heat Inner lining refractory material Crack Control is in below 2mm after state baker;Can also be latter with other position overall package welding for the liner of resistance to material And carry out baker treatment.
2nd, shirt portion 22 in second:
1st, the distribution grid liner of resistance to material 221 is identical with the preparation method of the dense bed material liner of resistance to material 222, resistance to distribution grid below Illustrated as a example by the preparation method of material liner 221;Refer to Fig. 1 and Fig. 3, the preparation method tool of the distribution grid liner of resistance to material 221 Body is comprised the following steps:
S21:It is pressure-resistant in distribution grid using laying fireproof bricks method in the form of the fissure of displacement is built by laying bricks or stones, block-by-block building method successively The laying fireproof bricks layer 221A's of the inwall making distribution grid liner of resistance to material of housing 12 builds sublayer by laying bricks or stones so that build sublayer by laying bricks or stones with distribution Have between the inwall of plate pressure hull 12 and pour gap;
Laying fireproof bricks when the building sublayer by laying bricks or stones of 221A of layer of the liner of resistance to material is being built by laying bricks or stones, first in distribution grid pressure hull 12 Between the fire resisting support flap used by wall welding anchor studs and fixed fire brick layer, short transverse of multiple fire resisting support flaps along furnace chamber Every the inwall for being welded on distribution grid pressure hull 12, two neighboring fire resisting brick plate every 2.5m, it is two neighboring resistance to ensure Sublayer of building by laying bricks or stones between fiery brick plate is highly not higher than 2.5m;Anchor studs and fixation are welded in the inwall of distribution grid pressure hull 12 After multiple fire resisting support flaps used by fire brick layer, reserved the first fire resisting LIFT 221B's for pouring the distribution grid liner of resistance to material pours Gap is built, building by laying bricks or stones for refractory brick is then carried out again, be engaged by locating slot and location lug between adjacent two blocks of refractory brick, realized It is firm to fix, the inwall welding fixture in distribution grid pressure hull 12 is thus avoided that, can also improve refractory brick and fire resisting Tight connection between brick, improves the globality for building sublayer of the laying fireproof bricks layer 221A for building the liner of resistance to material by laying bricks or stones and consolidates Property.
In addition, during building by laying bricks or stones, the gap formed between the two neighboring refractory brick of same layer is defined as vertical lap seam, its Width < 1mm, the gap formed between the refractory brick between adjacent two layers is defined as horizontal joint, its width < 1.5mm;
S22 is using casting method in the first fire resisting LIFT that gap makes the distribution grid liner of resistance to material that pours reserved before 221B's pours sublayer, and specific method is identical with the method for pouring every section of fire resisting LIFT 21B in first, and it differs only in section Spacing is controlled in 0.6m-1.2m, and it is swollen that specific height combines stainless steel furnace wall material, linear expansion coefficient and refractory material material, line The design of swollen coefficient and dilatation joint and determine.
S22:Method using S21 is brick in the fire resisting for building the making distribution grid liner of resistance to material in sublayer by laying bricks or stones made Build the next of layer 221A and build sublayer by laying bricks or stones, then using the method for S22 the second of the distribution grid liner of resistance to material for having poured On the basis of the first paragraph of interior fire resisting LIFT 221B, pour the distribution grid liner of resistance to material the first fire resisting LIFT 221B it is next Sublayer is poured, by that analogy, it is finally completed fire resisting LIFT in the laying fireproof bricks of the distribution grid liner of resistance to material layer 21A and second The making of 221B.
Optionally, carry out it is next build when building by laying bricks or stones of sublayer by laying bricks or stones, first can add ceramic fibre on fire resisting supporting brick Paper, then building by laying bricks or stones for refractory brick is carried out, pour fire resisting LIFT 221B in the second of the distribution grid liner of resistance to material every section will reserve The inside dilatation joint of the inside dilatation joint of two axles and the second footpath, is expanded with absorbing corresponding line.
In addition, the refractory brick that the laying fireproof bricks layer 221A for building the distribution grid liner of resistance to material by laying bricks or stones is used has been fired in advance, have Body is fired to be included:After by composite aggregate and Ultramicro-powder material mixing, molding, drying, with 1600 DEG C -1800 DEG C of high temperature in shuttle kiln Fire 7 days, obtain refractory brick;And refractory brick surface as used herein makes and has two or more diversion grooves, water conservancy diversion is recessed The in-profile of groove is cambered surface, improves the gas flow pattern on refractory brick surface, solid back-mixing at enhancing wall, it is to avoid formed Flow dead.
2nd, Fig. 1 and Fig. 4, the dilute phase liner of resistance to material 223, the first reducing liner of resistance to material 224, the diffusion liner of resistance to material 225 are referred to Preparation method with the second reducing liner of resistance to material 226 is identical, and their preparation method and the distribution grid liner of resistance to material 221, close phase The preparation method of the bed liner of resistance to material 222 differs only in some differences of the configuration aspects of used material and refractory brick, These difference parts are illustrated by taking the dilute phase liner of resistance to material 223 as an example below:
The laying fireproof bricks refractory brick that is used of layer 223A of the dilute phase liner of resistance to material when making, the firing material of refractory brick Be corundum brick powder and Ultramicro-powder, the two through material mixing, molding, drying, in 1700 DEG C of -1850 DEG C of high-temperature firings 7 days in shuttle kiln Refractory brick is formed, the face that the laying fireproof bricks layer 223A of the dilute phase liner of resistance to material is contacted with dilute-phase zone IV does not process diversion groove, has Body reason referring to the corresponding part of embodiment two description.
It should be noted that no matter which region of the correspondence furnace chamber of pressure hull 1, anchor studs and the backing ring plate of pressure hull And fire resisting brick plate will keep certain distance, it is to avoid directly contact, in order to avoid furnace heat is directed on gasification furnace outer wall cause Outer wall overtemperature, while be placed on fire resisting brick plate in cast discharge position reserving 2-4 small sircle hole or slot, it is to avoid heat Concentrate and Heat Conduction Problems;The all regions of body of heater, the brickwork joint (1mm-2mm) of laying fireproof bricks layer are made using alkali corrosion resistance castable For fire clay is filled up, the corundum based refractory materials preferably with calcium hexaluminate as aggregate.
After the liner of resistance to material completes, in addition it is also necessary to carry out overall oven drying, because laying fireproof bricks layer is preceding by high temperature Sintering processes, therefore drying out curve is according to the first fire resisting LIFT 22B, the second fire resisting LIFT 21B and the 3rd fire resisting LIFT The drying out curve for pouring material selected by 21B carries out baker, and heating rate and at each temperature is strictly controlled under initial low temperature Residence time, it is to avoid the water vapour pressure in the too fast refractory material of heating up causes lining point when having exceeded the tensile strength of material Layer and collapse, usual baker are divided into several sections, with the corresponding absorption of removing respectively water, with reference to water, the crystallization water.Such as:Control room temperature to 150 DEG C continue slow intensification, removal particle surface absorption water, 150 DEG C of constant temperature slough particle surface absorption water for a period of time, completely; 150 DEG C -350 DEG C continue slow intensification, remove gel combination water, and 350 DEG C of constant temperature remove gel and combine for a period of time, completely Water;350 DEG C -550 DEG C continue slow intensification, are stayed for some time at 550 DEG C, thoroughly remove the crystallization water;600 DEG C -800 DEG C continue It is slow to heat up, refractory material crystal formation is changed, make it have the characteristics such as thermal structure, high intensity.Baker final temperature is set in Higher than 100 DEG C or so of gasifier operation temperature.
In the description of above-mentioned implementation method, specific features, structure, material or feature can be at any one or many Combined in an appropriate manner in individual embodiment or example.
The above, specific embodiment only of the invention, but protection scope of the present invention is not limited thereto, and it is any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all contain Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.

Claims (17)

1. a kind of fluidized-bed gasification furnace, including furnace binding and the furnace chamber in furnace binding, the furnace chamber include air chamber Area, dense bed material area and dilute-phase zone, the furnace binding include pressure hull and are located in the pressure hull and the furnace chamber The liner of resistance to material of contact;Characterized in that, containing alkali resistant materials in the material that is used of the liner of resistance to material;The liner of resistance to material Shirt portion in shirt portion and second in including the directional spreding along the furnace chamber from low to high first;Shirt portion correspondence in described first The air chamber area, the shirt portion correspondence dense bed material area and the dilute-phase zone in described second;
Shirt portion includes the first fire resisting LIFT and the laying fireproof bricks layer as wear-and corrosion-resistant structure, the fire resisting in described second Brick masonry floor is contacted with the dense bed material area and dilute-phase zone respectively, in the first fire resisting LIFT and the pressure hull Wall is contacted, and the first fire resisting LIFT is located between the inwall of the pressure hull and laying fireproof bricks layer.
2. fluidized-bed gasification furnace according to claim 1, it is characterised in that shirt portion includes being used for alkaline-resisting corruption in described first Second fire resisting LIFT of erosion;Or,
Shirt portion includes that the second fire resisting LIFT for alkali corrosion resistance and the 3rd fire resisting for insulation are poured in described first Layer is built, the second fire resisting LIFT is contacted with the air chamber area, in the 3rd fire resisting LIFT and the pressure hull Wall is contacted, and the 3rd fire resisting LIFT is located between the inwall of the pressure hull and the second fire resisting LIFT.
3. fluidized-bed gasification furnace according to claim 2, it is characterised in that what the second fire resisting LIFT was used pours Build composite aggregate of the material including arbitrary proportion, fine powder, Ultramicro-powder, cement and dispersant;The particle diameter distribution of the composite aggregate, The particle diameter distribution of fine powder, the particle diameter distribution of Ultramicro-powder, the particle diameter distribution of cement are different with the particle diameter distribution of dispersant;Described 3rd What fire resisting LIFT was used pours material for corundum based refractory materials;
Wherein, the composite aggregate is the corundum based refractory materials containing calcium hexaluminate and/or magnesium aluminate spinel.
4. fluidized-bed gasification furnace according to claim 2, it is characterised in that the second fire resisting LIFT is provided with multiple the Two are radially expanded seam and multiple second axial expansions seam;The 3rd fire resisting LIFT is provided with multiple three and is radially expanded seam and many Individual 3rd axial expansion seam;
Each described second be radially expanded seam for absorb the second fire resisting LIFT the furnace chamber radial direction occur line Expansion, each described second axial expansion is stitched for absorbing the line that the second fire resisting LIFT occurs in the axial direction of the furnace chamber Expansion;
Each the described 3rd be radially expanded seam for absorb the 3rd fire resisting LIFT the furnace chamber radial direction occur line Expansion, each described 3rd axial expansion is stitched for absorbing the line that the 3rd fire resisting LIFT occurs in the axial direction of the furnace chamber Expansion;
Wherein, multiple outside dilatation joints in second footpath, multiple outside dilatation joints of second axle, multiple three are radially expanded seam and multiple the Three axial expansions seam mutually staggers;Each described second be radially expanded seam, each described second axial expansion seam, each described the Three are radially expanded in seam and each described 3rd axial expansion seam filled with ceramic fiber paper.
5. fluidized-bed gasification furnace according to claim 1, it is characterised in that the laying fireproof bricks layer is included along described The multiple of the short transverse arrangement of furnace chamber builds sublayer by laying bricks or stones, and the laying fireproof bricks layer is also included along the short transverse of the furnace chamber The multiple fire resisting brick plates being intervally arranged, multiple fire resisting brick plates are fixed on the inwall of the pressure hull, two neighboring Set between the fire resisting brick plate described in one and build sublayer by laying bricks or stones, described building by laying bricks or stones be provided with pottery between sublayer and the fire resisting brick plate Porcelain fiber cushion.
6. fluidized-bed gasification furnace according to claim 1, it is characterised in that the first fire resisting LIFT is provided with multiple the One is radially expanded seam and multiple first axial dilatation joints;
Each described first be radially expanded seam for absorb the first fire resisting LIFT the furnace chamber radial direction occur line Expansion, each described first axial dilatation joint is used to absorb the line that the first fire resisting LIFT occurs in the axial direction of the furnace chamber Expansion;
Wherein, the brickwork joint of the two neighboring fire brick layer of the laying fireproof bricks layer staggers;Multiple first is radially expanded seam, multiple Brickwork joint of the first axial dilatation joint respectively with laying fireproof bricks layer mutually staggers, and each described first is radially expanded seam and every Ceramic fiber paper is filled with individual described first axial dilatation joint.
7. fluidized-bed gasification furnace according to claim 1, it is characterised in that every block of refractory brick of the laying fireproof bricks layer Brick face be provided with location structure;During the location structure is location lug or locating slot, and refractory brick described in same, the fire resisting The current brick face of brick sets location lug, and refractory brick brick face corresponding with current brick face sets locating slot.
8. fluidized-bed gasification furnace according to claim 1, it is characterised in that the shirt portion correspondence dense bed in described second Expect in the part in area, the refractory brick of the laying fireproof bricks layer fires material includes composite aggregate, fine powder, the ultra micro of arbitrary proportion Powder and additive, in the laying fireproof bricks layer, the particle diameter distribution of composite aggregate, the particle diameter distribution of fine powder, the particle diameter of Ultramicro-powder Distribution is different with the particle diameter distribution of additive;
What the first fire resisting LIFT was used pours composite aggregate, fine powder, powder, combination of the material including arbitrary proportion Agent, dispersant and agglutinant;Wherein, in the first fire resisting LIFT, the particle diameter distribution of composite aggregate, the particle diameter of fine powder point Cloth, the particle diameter distribution of powder, the particle diameter distribution of bonding agent, the particle diameter distribution of dispersant are different with the particle diameter distribution of agglutinant;
Wherein, the composite aggregate is the corundum based refractory materials containing calcium hexaluminate and/or magnesium aluminate spinel.
9. fluidized-bed gasification furnace according to claim 1, it is characterised in that the shirt portion correspondence dilute-phase zone in described second Part in, the refractory brick of laying fireproof bricks layer fires material includes corundum aggregate, fine powder and the Ultramicro-powder of arbitrary proportion, The particle diameter distribution of the corundum aggregate, the particle diameter distribution of fine powder are different with the particle diameter distribution of Ultramicro-powder;
What the first fire resisting LIFT was used pours corundum based refractory materials, fine powder, combination of the material including arbitrary proportion Agent, dispersant and agglutinant;The particle diameter distribution of the corundum based refractory materials, the particle diameter distribution of powder, the particle diameter point of bonding agent Cloth, the particle diameter distribution of dispersant are different with the particle diameter distribution of agglutinant.
10. the fluidized-bed gasification furnace according to any one of claim 1~9, it is characterised in that set at the top of the furnace chamber There is a gas vent, the bottom of the furnace chamber is provided with deslagging outlet, and the furnace chamber also includes distribution grid area, shirt portion is also in described second The distribution grid area and diffusion region are corresponded to respectively;The furnace chamber include air chamber area, distribution grid area, dense bed material area, dilute-phase zone and Arranged along the direction from low to high of the furnace chamber diffusion region;The part in the pressure hull correspondence air chamber area is provided with the One gas access, the first gas entrance is connected with the air chamber area;The first gas entrance is used to inject combustible gas, sky Gas or gasifying agent;
The part in the pressure hull correspondence distribution grid area is provided with lighting-up tuyere and flying dust entrance, the lighting-up tuyere and flying dust entrance point Do not connected with the distribution grid area;The lighting-up tuyere is used to light combustible gas, and the flying dust entrance is used to inject from the gas Export the flying dust that the gas of outflow is isolated;
The part in the pressure hull correspondence dense bed material area is provided with second gas entrance and coal powder entrance, and the second gas enter Mouth and the coal powder entrance are connected with the dense bed material area respectively;The coal powder entrance is used to inject the coal of supported catalyst Powder, the second gas entrance is used to inject the hydrogen and carbon monoxide isolated from the gas of gas vent outflow.
11. fluidized-bed gasification furnaces according to claim 10, it is characterised in that the laying fireproof bricks layer and the distribution The face of plate area contact, and/or the face that is contacted with the dense bed material area of the laying fireproof bricks floor offers multiple and is used for respectively Change the diversion groove of fluid flow direction.
12. fluidized-bed gasification furnaces according to claim 10, it is characterised in that the shirt portion correspondence distribution in described second In the part in plate area and the part in the correspondence dense bed material area, the refractory brick firing material of the laying fireproof bricks layer is identical, It is identical that what the first fire resisting LIFT was used pours material.
13. fluidized-bed gasification furnaces according to claim 10, it is characterised in that between the dilute-phase zone and the diffusion region The first reducing district gradually increased for radical length is provided with, is provided with radially long between the diffusion region and the top of the furnace chamber The second reducing district that degree is gradually reduced;The liner of resistance to material also corresponds to first reducing district and second reducing district.
14. fluidized-bed gasification furnaces according to claim 13, it is characterised in that the shirt portion correspondence dilute phase in described second The part in area, the part of corresponding first reducing district, the part of the correspondence diffusion region and correspondence second reducing district Part in, the refractory brick of laying fireproof bricks layer fires that material is identical, and what the first fire resisting LIFT was used pours material Material is identical.
The construction method of the fluidized-bed gasification furnace any one of a kind of 15. claims 1~14, it is characterised in that:Including:
One pressure hull is provided;
3rd fire resisting LIFT is made in the part in the inwall correspondence air chamber area of the pressure hull using casting method, is used Casting method makes the second fire resisting LIFT in the 3rd fire resisting LIFT towards the part of the furnace chamber so that described second is resistance to Fiery LIFT and the 3rd fire resisting LIFT constitute shirt portion in first;
Shirt portion in second is made using discrete method;Wherein, make shirt portion in described second each section includes using fire resisting brick Build method part of the part in the correspondence dense bed material area and the correspondence dilute-phase zone in the pressure hull and make refractory brick That builds layer by laying bricks or stones builds sublayer by laying bricks or stones so that has between the inwall for building sublayer and the pressure hull by laying bricks or stones and pours gap;Using pouring Build method it is described pour gap in make the first fire resisting LIFT pour sublayer.
The construction method of 16. fluidized-bed gasification furnaces according to claim 15, it is characterised in that the use casting method exists When the part in the inwall correspondence air chamber area of the pressure hull makes the 3rd fire resisting LIFT, made by the way of segmentation 3rd fire resisting LIFT;It is resistance to that the use casting method makes second in the 3rd fire resisting LIFT towards the part of the furnace chamber During fiery LIFT, the second fire resisting LIFT is made by the way of segmentation.
The construction method of 17. fluidized-bed gasification furnaces according to claim 15, it is characterised in that the use fire resisting is brick Build method part of the part in the correspondence dense bed material area and the correspondence dilute-phase zone in the pressure hull and make refractory brick Build when building sublayer by laying bricks or stones of layer by laying bricks or stones, form is built by laying bricks or stones using what the fissure of displacement was built by laying bricks or stones, block-by-block building method successively makes laying fireproof bricks layer Build sublayer by laying bricks or stones;
Using casting method it is described pour gap in make first in when pouring sublayer of fire resisting LIFT, using segmentation by the way of Fire resisting LIFT pours sublayer in making first.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107177384A (en) * 2017-07-11 2017-09-19 新奥科技发展有限公司 A kind of catalytic gasification device, system and method
CN107520073A (en) * 2017-09-28 2017-12-29 上海化工研究院有限公司 A kind of coal gasification cyclone separator
CN108410506A (en) * 2018-04-13 2018-08-17 新奥科技发展有限公司 A kind of anaerobic catalytic gasification stove, catalytic gasification system and coal methanation process
CN111550810A (en) * 2020-04-24 2020-08-18 中国电建集团河南工程有限公司 Construction method for building lining of household garbage incinerator

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107177384A (en) * 2017-07-11 2017-09-19 新奥科技发展有限公司 A kind of catalytic gasification device, system and method
CN107177384B (en) * 2017-07-11 2020-06-19 新奥科技发展有限公司 Catalytic gasification device, system and method
CN107520073A (en) * 2017-09-28 2017-12-29 上海化工研究院有限公司 A kind of coal gasification cyclone separator
CN108410506A (en) * 2018-04-13 2018-08-17 新奥科技发展有限公司 A kind of anaerobic catalytic gasification stove, catalytic gasification system and coal methanation process
CN108410506B (en) * 2018-04-13 2020-04-21 新奥科技发展有限公司 Anaerobic catalytic gasification furnace, catalytic gasification system and coal methanation method
CN111550810A (en) * 2020-04-24 2020-08-18 中国电建集团河南工程有限公司 Construction method for building lining of household garbage incinerator

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