CN107674710A - The remodeling method and water wall gasifier of refractory brick gasification furnace - Google Patents
The remodeling method and water wall gasifier of refractory brick gasification furnace Download PDFInfo
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- CN107674710A CN107674710A CN201710910937.6A CN201710910937A CN107674710A CN 107674710 A CN107674710 A CN 107674710A CN 201710910937 A CN201710910937 A CN 201710910937A CN 107674710 A CN107674710 A CN 107674710A
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- water
- gasification furnace
- refractory brick
- shell
- shell body
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/485—Entrained flow gasifiers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/74—Construction of shells or jackets
Abstract
The invention discloses a kind of remodeling method of refractory brick gasification furnace and water wall gasifier, the remodeling method of the refractory brick gasification furnace comprises the following steps：Remove the refractory brick in the shell of refractory brick gasification furnace；The upper cover for cutting away the shell obtains shell body and end socket；By water-cooling wall component from the upper end of the shell body install into the shell body and make the water-cooling wall component lower end be supported on refractory brick gasification furnace bottom support plate upper surface；The end socket is fixedly connected to transform the refractory brick gasification furnace as water wall gasifier with the upper end of the shell body.The remodeling method of the refractory brick gasification furnace of the present invention, easily existing refractory brick gasification furnace can be transform as water wall gasifier, short construction period, invest low, the expansion direction of the water-cooling wall component for the water wall gasifier transformed out is consistent with the expansion direction of shell, the corrosion of shell is not easily caused, ensures gasification furnace long-term safety stable operation.
Description
Technical field
The water-cooling wall formed the present invention relates to a kind of remodeling method of refractory brick gasification furnace and by refractory brick gasification furnace transformation
Gasification furnace.
Background technology
Conventional air bed gasification technology, particularly coal water slurry entrained flow bed gasification technology are using refractory brick as gasification furnace high pressure
The heat-barrier coating of housing.Because the material by refractory brick is limited, the operation temperature of gasification furnace combustion chamber be not easy it is too high, typically
It is required that the ash fusion point of feed coal is no more than 1400 DEG C, therefore limit the application of high ash melting point feed coal.In addition, gasification furnace burns
The refractory brick life of room lower cone bottom point is low, and the gasifier operation several months just needs blowing out to carry out refractory brick replacing, so as to cause
Operating cost is high.Method currently used for transforming refractory brick gasification furnace, its top water-cooling wall modular construction is complicated, fin panel casing
It is fixed on top, that is to say, that water-cooling wall component is lift-on/lift-off type, during gasifier operation, in the shock chamber of combustion chamber bottom
Easily string into the ring cavity in water-cooling wall and gasification stove outer covering, causes inner walls to corrode, has a strong impact on gasification saturation synthesis gas
The long-term safety stable operation of stove.
The content of the invention
It is contemplated that at least solves one of technical problem present in prior art.Therefore, the present invention proposes that one kind is resistance to
The remodeling method of firebrick gasification furnace, the water wall gasifier that the remodeling method of the refractory brick gasification furnace is transformed out can pacify for a long time
Full stable operation.
The remodeling method of refractory brick gasification furnace according to embodiments of the present invention, comprises the following steps：Remove refractory brick gasification
Refractory brick in the shell of stove；The upper cover for cutting away the shell obtains shell body and end socket；By water-cooling wall component from described
Install into the shell body and the lower end of the water-cooling wall component is supported on the bottom of refractory brick gasification furnace in the upper end of shell body
The upper surface of supporting plate；The end socket is fixedly connected so that the refractory brick gasification furnace to be transform as with the upper end of the shell body
Water wall gasifier.
The remodeling method of refractory brick gasification furnace according to embodiments of the present invention, easily existing refractory brick can be gasified
Stove transform water wall gasifier as, short construction period, invests low, the expansion of the water-cooling wall component for the water wall gasifier transformed out
Direction is consistent with the expansion direction of shell, does not easily cause the corrosion of shell, ensures gasification furnace long-term safety stable operation, and energy
Greatly improve the operation temperature of gasification furnace and the adaptability of feed coal.
The remodeling method of refractory brick gasification furnace according to an embodiment of the invention, by water-cooling wall component from the shell sheet
The upper end of body also includes step before installing the shell body：In the water-cooling wall component lower end, the first interface arrangment is set,
The upper surface of the bottom wall supports plate sets the second interface arrangment；The lower end of the water-cooling wall component is supported on resistance to by the step
The upper surface of the bottom support plate of firebrick gasification furnace includes：By first interface arrangment and the second interface arrangment clamping again
Welded seal.
The remodeling method of refractory brick gasification furnace according to an embodiment of the invention, by water-cooling wall component from the shell sheet
The upper end of body also includes step before installing the shell body：Separating tube pore is set in the shell body, set in the end socket
Put collector tube pore.
The remodeling method of refractory brick gasification furnace according to an embodiment of the invention, by the end socket and the shell body
Upper end be fixedly connected before also comprise the following steps：Lower flange is connected in the lower end of the end socket, in the upper end of the shell body
Connect upper flange；The step end socket is fixedly connected with the upper end of the shell body including by the upper flange with it is described
Lower flange is connected by threaded fastener.
The invention also discloses a kind of water wall gasifier, water wall gasifier according to embodiments of the present invention, including：Gas
Change furnace shell, the gasification furnace shell is the shell of refractory brick gasification furnace；Bottom support plate, the bottom wall supports plate are installed on institute
State the bottom of gasification furnace shell；Water-cooling wall component, the water-cooling wall component is installed in the gasification furnace shell, and is supported on institute
State above bottom support plate, the water-cooling wall component is spaced apart to limit annular chamber, the annular with the gasification furnace shell
Chamber is used to arrange pipeline and is passed through protective gas.
Water wall gasifier according to an embodiment of the invention, the water-cooling wall component include：Fin panel casing；Upper water
Steam pipe, the upper vapour pipe are connected with the upper end of the fin panel casing；Collector tube, the collector tube and the upper vapour pipe phase
Even；Lower vapour pipe, the lower vapour pipe are connected with the lower end of the fin panel casing；Separating tube, the separating tube with it is described under
Vapour pipe is connected, and is supported in the bottom support plate.
Water wall gasifier according to an embodiment of the invention, the outer wall of the separating tube are provided with the first interface arrangment,
The upper surface of the bottom support plate is provided with the second interface arrangment, first interface arrangment and the second interface arrangment clamping
And sealing is connected.
Water wall gasifier according to an embodiment of the invention, first interface arrangment include first annular plate, institute
Stating the second interface arrangment includes two diametrically spaced apart second annular slabs, and the first annular plate stretches into two described second
Between annular slab, and welded seal.
Water wall gasifier according to an embodiment of the invention, the upper vapour pipe is multiple, and multiple upper water
Steam pipe is formed as taper tapered from top to bottom；The lower vapour pipe is multiple, and multiple lower vapour pipes are formed as from upper
Arrive down tapered taper.
Water wall gasifier according to an embodiment of the invention, the gasification furnace shell include：Shell body and end socket, institute
State the open upper end of shell body, and the upper end of the shell body is provided with upper flange, the lower end of the end socket is provided with lower flange, institute
Upper flange is stated with the lower flange to be connected.
The remodeling method of the water wall gasifier and above-mentioned refractory brick gasification furnace relative to prior art Dominant Facies
Together, just repeat no more herein.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the schematic cross-sectional view of water wall gasifier according to embodiments of the present invention；
Fig. 2 be II in Fig. 1 at partial enlarged drawing；
Fig. 3 is the schematic flow sheet of the remodeling method of refractory brick gasification furnace according to embodiments of the present invention.
Reference：
Water wall gasifier 100,
Collector tube 11, upper vapour pipe 12, fin panel casing 13, lower vapour pipe 14, separating tube 15, the first interface arrangment 16,
Combustion chamber 17,
Gasify furnace shell 20, shell body 21, end socket 22, upper flange 23, lower flange 24, annular chamber 25,
Bottom support plate 30, the second interface arrangment 36,
Taper brick plate 40.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
Water wall gasifier using water-cooling wall as protective layer has considerable advantage compared to refractory brick gasification burner, than
Changed such as water wall gasifier without shutdown for several times every year and bore bottom brick, without full stove brick is regularly replaced, water wall gasifier has
Run beneficial to long-term safety, the cost for replacing refractory brick can be saved.
Optimized especially with the water wall gasifier of water-coal-slurry charging in sparking mode and protection gas systems approach,
The investment of water wall gasifier and operating cost are remarkably decreased, and the temperature of road outer arm reduces and by-product steam heat is basic
Balance, it ensure that oxygen consumption does not rise, gaseous mass does not decline, and the combination property of water wall gasifier is substantially better than existing be in
In the refractory brick gasification furnace fed using water-coal-slurry with state.
Due to come into operation in early days and a large amount of gasification furnaces be refractory brick gasification furnace, dry-coal feeding side can not be used
Formula, cost is high, and the cycle of operation is short, and availability is low, if existing refractory brick gasification furnace is discarded, reconstructs new water-cooling wall gas
Change stove, can to invest huge, long construction period.
The remodeling method of refractory brick gasification furnace according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 3, the present invention is real
Refractory brick gasification furnace can be transform as water wall gasifier 100 by applying the refractory brick gasification furnace of example.
As shown in figure 3, the remodeling method of the refractory brick gasification furnace of the embodiment of the present invention comprises the following steps：Remove refractory brick
Refractory brick in the shell of gasification furnace；The upper cover for cutting away shell obtains shell body 21 and end socket 22；By water-cooling wall component from
Install into shell body 21 and the lower end of water-cooling wall component is supported on the bottom support of refractory brick gasification furnace in the upper end of shell body 21
The upper surface of plate 30；End socket 22 is fixedly connected to transform refractory brick gasification furnace as water-cooling wall gasification with the upper end of shell body 21
Stove 100.
Due to the upper surface of bottom support plate 30 that the lower end of water-cooling wall component is supported on to refractory brick gasification furnace, that is,
To say, the lower end of water-cooling wall component is fixed, and expansion direction is upward, in the course of the work, the expansion direction and shell of water-cooling wall component
Expansion direction it is consistent, it is possible thereby to ensure the sealing of water-cooling wall component and bottom technique side, prevent steam from water-cooling wall component
Go here and there out, do not easily cause the corrosion of gasification furnace housing 20.
The remodeling method of refractory brick gasification furnace according to embodiments of the present invention, easily existing refractory brick can be gasified
Stove transform water wall gasifier 100 as, short construction period, invests low, the water-cooling wall component for the water wall gasifier 100 transformed out
Expansion direction it is consistent with the expansion direction of shell, do not easily cause the corrosion of shell, ensure gasification furnace long-term safety stable operation,
And the operation temperature of gasification furnace and the adaptability of feed coal can be greatly improved.
Preferably, wherein, step is also included before water-cooling wall component is installed into shell body 21 from the upper end of shell body 21：
The first interface arrangment 16 is set in water-cooling wall component lower end, the second interface arrangment 36 is set in the upper surface of bottom wall supports plate；Step
The lower end of water-cooling wall component is supported on to the upper surface of the bottom support plate 30 of refractory brick gasification furnace suddenly to be included：By the first clamping knot
The clamping of 16 and second interface arrangment of structure 36 welded seal again.
Also include step before water-cooling wall component is installed into shell body 21 from the upper end of shell body 21：Set in shell body 21
Separating tube pore is put, collector tube pore is set in end socket 22, so, separating tube 15 and collector tube 11 pass through one or more respectively
Pipeline is drawn outside gasification furnace in shell body 21 or on upper cover, and the system phase formed with drum outside gasification furnace and circulating pump
Even；The boiler feedwater supplement come from the external world enters drum, and the heat that fin panel casing 13 receives in gasification furnace produces in drum
Steam, send out battery limit (BL).
Also comprise the following steps before end socket 22 is fixedly connected with the upper end of shell body 21：Connected in the lower end of end socket 22
Lower flange 24, upper flange 23 is connected in the upper end of shell body 21；End socket 22 is fixedly connected with bag by step with the upper end of shell body 21
Include and upper flange 23 is connected with lower flange 24 by threaded fastener, so, end socket 22 is connected firmly with shell body 21, and applies
Work is convenient.
The remodeling method of the refractory brick gasification furnace of one embodiment of the invention, comprises the following steps：Remove refractory brick gasification
Refractory brick is to obtain the gasification furnace shell 20 of the water wall gasifier 100 of above-described embodiment and bottom wall supports plate in stove outer covering；Cut
Slice off the upper cover of shell so that gasification furnace shell 20 divides for shell body 21 and end socket 22；Second is set on bottom wall supports plate
Interface arrangment 36；In gasification furnace shell 20, the pore of collector tube 11 and the pore of separating tube 15 are set；The fixed water-cooling wall component of installation, makes
Water-cooling wall modular support is in bottom wall supports plate；First interface arrangment 16 and the welded seal of the second interface arrangment 36；Will by flange
End socket 22 is connected with shell body 21 to be transformed into water wall gasifier 100.
The invention also discloses a kind of water wall gasifier 100.Water wall gasifier 100 disclosed by the invention is will be existing
Refractory brick gasification furnace transformation and formed, construction cost and construction period can be reduced.
Water wall gasifier 100 according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 2.
As Figure 1-Figure 2, water wall gasifier 100 according to an embodiment of the invention includes：Gasification furnace shell 20,
Bottom support plate 30, water-cooling wall component.
Wherein, gasify the shell that furnace shell 20 is refractory brick gasification furnace, such as the shell by existing refractory brick gasification furnace
Interior volume refractory brick is removed, you can obtains the furnace shell 20 that gasifies.
Bottom wall supports plate is installed on the bottom of gasification furnace shell 20, for example bottom support plate 30 can be refractory brick gasification furnace
Bottom support plate, and bottom support plate 30 by taper brick plate 40 with gasify furnace shell 20 lower end be connected, bottom support
Plate 30 can be annular.
Water-cooling wall component is installed in gasification furnace shell 20, and water-cooling wall component limits combustion chamber 17, and water-cooling wall component
The top of bottom support plate 30 is supported on, such water-cooling wall component forms expansion structure in lower support, in the course of the work, water-cooling wall
The expansion direction of component is consistent with the expansion direction for the furnace shell 20 that gasifies, it is possible thereby to ensure water-cooling wall component and bottom technique side
Sealing, prevent steam from going out from water-cooling wall component string, do not easily cause the corrosion of gasification furnace housing 20.
Water wall gasifier 100 according to embodiments of the present invention, formed, transformed out by the transformation of existing refractory brick gasification furnace
Equipment and technique needed for water wall gasifier 100 is simple, short construction period, and investment is low, and the water cooling of water wall gasifier 100
The expansion direction of wall component is consistent with the expansion direction for the furnace shell 20 that gasifies, and does not easily cause the corrosion of gasification furnace housing 20, ensures
Gasification furnace long-term safety stable operation, and the operation temperature of gasification furnace and the adaptability of feed coal can be greatly improved.
In a preferred embodiment of the invention, as shown in figure 1, water-cooling wall component includes：Fin panel casing 13, on
Vapour pipe 12, collector tube 11, lower vapour pipe 14, separating tube 15.
Wherein, collector tube 11 is connected with the upper end of upper vapour pipe 12, lower end and the fin panel casing 13 of upper vapour pipe 12
Upper end is connected, and the lower end of fin panel casing 13 is connected with the upper end of lower vapour pipe 14, the lower end of separating tube 15 and lower vapour pipe 14
It is connected.Separating tube 15 and collector tube 11 can draw water-cooling wall in gasification furnace shell 20 by one or more pipeline respectively and gasify
Outside stove 100.
As shown in Fig. 2 separating tube 15 is supported in bottom support plate 30, the lower end of such water-cooling wall component is fixed, water cooling
Wall component can upward free wxpansion, water-cooling wall component is hardly damaged, and the expansion direction of water-cooling wall component and gasification furnace shell
20 expansion direction is consistent, and the sealing stability in bottom is good.
The connected mode of separating tube 15 and bottom support plate 30 has a variety of, for example the outer wall of separating tube 15 is provided with the first clamping
Structure 16, the upper surface of bottom support plate 30 are provided with the second interface arrangment 36, the first interface arrangment 16 and the second interface arrangment 36
Clamping and sealing be connected.By way of first clamping water-cooling wall component can be made first to be predefined in bottom support plate 30, be easy to the later stage
Sealing processing.
Specifically, as shown in Fig. 2 the first interface arrangment 16 can include first annular plate, first annular plate can from point
The bottom of the outer wall of liquid pipe 15 is extended downwardly to be formed, and the second interface arrangment 36 includes two diametrically spaced apart second annulars
Plate, first annular plate are stretched between two the second annular slabs, and first annular plate and the second annular slab welded seal.Such liquid separation
Being connected firmly conveniently between pipe 15 and bottom support plate 30, good airproof performance.
Fin panel casing 13 can be tubular, and fin panel casing 13 has the structure type of plurality of optional, such as can at some
In the embodiment of choosing, fin panel casing 13 can be vertical, and fin panel casing 13 includes multiple straight tubes, and multiple straight tubes are from upper
Sequentially welding forms fin panel casing 13 under and, and the fin panel casing 13 of this form is simple in construction, is easy to be molded.At other
In optional embodiment, fin panel casing 13 can also be spiral, 13 effective stroke of the fin panel casing length of this form,
Operating efficiency is high.The inwall of fin panel casing 13 can also scribble the wear-resisting non-metallic material bed of material.
As shown in figure 1, fin panel casing 13 is spaced apart to limit annular chamber 25 with gasification furnace shell 20, annular chamber 25 is used
In arrangement pipeline and protective gas is passed through, such as is passed through nitrogen or the process gas in the downstream of water wall gasifier 100, annular chamber 25
Installation gap also as fin panel casing 13, supporting construction can be provided with annular chamber 25, supporting construction is connected to gasification furnace
Between the inwall of housing 20 and the outer wall of fin panel casing 13, guide frame can be provided with annular chamber 25, supporting construction or lead
Can be one or more layers to structure.
With reference to figure 1, upper vapour pipe 12 can be multiple, and multiple upper vapour pipes 12 are formed as cone tapered from top to bottom
Shape, it is tightly connected between the outer wall of multiple upper vapour pipes 12；Lower vapour pipe 14 to be multiple, and multiple lower vapour pipes 14 be formed as from
The tapered taper of top to bottm, it is tightly connected between the outer wall of multiple lower vapour pipes 14.
As shown in figure 1, gasification furnace shell 20 includes：Shell body 21 and end socket 22, the open upper end of shell body 21, and shell sheet
The upper end of body 21 is provided with upper flange 23, and the lower end of end socket 22 is provided with lower flange 24, and upper flange 23 is connected with lower flange 24, upper method
It can be connected between orchid 23 and lower flange 24 by the threaded fastener of multiple circumferentially spaced arrangements.
Wherein, separating tube 15 and collector tube 11 are drawn by one or more pipeline in shell body 21 or on end socket 22 respectively
Go out outside gasification furnace, and be connected with the system that drum outside gasification furnace and circulating pump form；The boiler feedwater come from the external world is supplemented in
Enter drum, the heat that fin panel casing 13 receives in gasification furnace produces steam in drum, sends out battery limit (BL).
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means to combine specific features, the knot that the embodiment or example describe
Structure, material or feature are contained at least one embodiment or example of the present invention.In this manual, to above-mentioned term
Schematic representation is not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the spy of description
Point can combine in an appropriate manner in any one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of remodeling method of refractory brick gasification furnace, it is characterised in that comprise the following steps：
Remove the refractory brick in the shell of refractory brick gasification furnace；
The upper cover for cutting away the shell obtains shell body and end socket；
Water-cooling wall component is installed into the shell body from the upper end of the shell body and makes the lower end branch of the water-cooling wall component
Support in the upper surface of the bottom support plate of refractory brick gasification furnace；
The end socket is fixedly connected to transform the refractory brick gasification furnace as water-cooling wall gasification with the upper end of the shell body
Stove.
2. the remodeling method of refractory brick gasification furnace according to claim 1, it is characterised in that by water-cooling wall component from institute
State shell body upper end the shell body is installed before also include step：In the water-cooling wall component lower end, the first clamping knot is set
Structure, the second interface arrangment is set in the upper surface of the bottom wall supports plate；
The upper surface for the bottom support plate that the lower end of the water-cooling wall component is supported on refractory brick gasification furnace by the step includes：
By first interface arrangment and the second interface arrangment clamping welded seal again.
3. the remodeling method of refractory brick gasification furnace according to claim 1, it is characterised in that by water-cooling wall component from institute
State shell body upper end the shell body is installed before also include step：Separating tube pore is set in the shell body, described
End socket sets collector tube pore.
4. the remodeling method of refractory brick gasification furnace according to claim 1, it is characterised in that by the end socket with it is described
The upper end of shell body also comprises the following steps before being fixedly connected：Lower flange is connected in the lower end of the end socket, in the shell body
Upper end connection upper flange；
The end socket is fixedly connected including by the upper flange and the lower flange by the step with the upper end of the shell body
It is connected by threaded fastener.
A kind of 5. water wall gasifier, it is characterised in that including：
Gasify furnace shell, and the gasification furnace shell is the shell of refractory brick gasification furnace；
Bottom support plate, the bottom wall supports plate are installed on the bottom of the gasification furnace shell；
Water-cooling wall component, the water-cooling wall component is installed in the gasification furnace shell, and is supported in the bottom support plate
Side, the water-cooling wall component are spaced apart with the gasification furnace shell to limit annular chamber, and the annular chamber is used to arrange pipeline
And it is passed through protective gas.
6. water wall gasifier according to claim 5, it is characterised in that the water-cooling wall component includes：
Fin panel casing；
Upper vapour pipe, the upper vapour pipe are connected with the upper end of the fin panel casing；
Collector tube, the collector tube are connected with the upper vapour pipe；
Lower vapour pipe, the lower vapour pipe are connected with the lower end of the fin panel casing；
Separating tube, the separating tube is connected with the lower vapour pipe, and is supported in the bottom support plate.
7. water wall gasifier according to claim 6, it is characterised in that the outer wall of the separating tube is provided with the first clamping
Structure, the upper surface of the bottom support plate are provided with the second interface arrangment, first interface arrangment and the second clamping knot
Structure clamping and sealing be connected.
8. water wall gasifier according to claim 7, it is characterised in that first interface arrangment includes first annular
Plate, second interface arrangment include two diametrically spaced apart second annular slabs, and the first annular plate stretches into two institutes
Between stating the second annular slab, and welded seal.
9. water wall gasifier according to claim 6, it is characterised in that the upper vapour pipe is multiple, and multiple institutes
State the taper that vapour pipe is formed as tapered from top to bottom；The lower vapour pipe is multiple, and multiple lower vapour pipes are formed
For taper tapered from top to bottom.
10. according to the water wall gasifier any one of claim 5-9, it is characterised in that the gasification furnace shell bag
Include：Shell body and end socket, the open upper end of the shell body, and the upper end of the shell body are provided with upper flange, the end socket
Lower end be provided with lower flange, the upper flange is connected with the lower flange.
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|---|---|---|---|---|
| CN110804467A (en) * | 2019-12-06 | 2020-02-18 | 北京清创晋华科技有限公司 | Water cooling bucket assembly and method for improving existing refractory brick gasification furnace |
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