CN203295465U - Annular slag tank of crushed coal molten slag gasification furnace - Google Patents
Annular slag tank of crushed coal molten slag gasification furnace Download PDFInfo
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- CN203295465U CN203295465U CN2013202263074U CN201320226307U CN203295465U CN 203295465 U CN203295465 U CN 203295465U CN 2013202263074 U CN2013202263074 U CN 2013202263074U CN 201320226307 U CN201320226307 U CN 201320226307U CN 203295465 U CN203295465 U CN 203295465U
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Abstract
The utility model relates to an annular slag tank of a crushed coal molten slag gasification furnace. The annular slag tank is limited by an annular slag tank component, wherein an integrally formed coolant flowing pipeline is buried in the annular slag tank component; the inlet and the outlet of the coolant flowing pipeline respectively extend out from the annular slag tank component. The annular slag tank is arranged on the bottom of a coal gasification pressure container of the crushed coal molten slag gasification furnace; the lower end of the annular slag tank is connected with the upper end of a slag discharger of the crushed coal molten slag gasification furnace in a sealing manner; the lower-end opening of the annular slag tank is aligned to the upper-end opening of the slag discharger. The annular slag tank disclosed by the utility model is good in cooling effect and operating effect, capable of avoiding or bearing erosion, corrosion and thermal impact interferences of the molten slag and the iron, long in service life and convenient to disassemble and maintain.
Description
Technical field
The utility model relates generally to the slag bath of cracked cinder vapourizing furnace, particularly relates to a kind of annular slag bath of broken coal slag gasification furnace.
Background technology
Lurgi gasifier (Lurgi gasifier) is a kind of equipment of coal pressurized gasification.Lurgi gasifier utilizes mechanical grate dry ash deslagging.The broken coal slag gasification furnace is based on further improvement and the modernization development of lurgi gasifier, the advantages such as carbon dioxide content is lower in the generation that the vapourizing furnace coal feeding amount with higher producing synthesis gas from coal transformation efficiency, same size is larger, greatly reduced steam consumption and waste water, product.Slag tap is to utilize mechanical grate dry ash deslagging for lurgi gasifier, overcome that mechanical grate working temperature is high, serious wear, maintenance workload is large, the equipment power consumption is large, the serious shortcoming of environmental pollution, use slag off apparatus to carry out deslagging, make the broken coal slag gasification furnace not have ash content to produce, only has stable glass slag, not only reduce facility investment and energy consumption, and reduced environmental pollution.
The broken coal slag gasification furnace comprises the gasification pressurized vessel (broken coal slag gasification furnace housing) of a column.Coal or other carbonaceous fuel drop into from gasification pressurized vessel top, utilize simultaneously blast orifice (nozzle) oxygen that stove is outer and steam to cause in the bottom fuel of gasification pressurized vessel the inside, make coal or other carbonaceous fuel gasifying under High Temperature High Pressure.Residual ash such as slag and iron are collected in the slag bath of gasification pressurized vessel bottom, and slag and Tie Tong cross the slag-drip opening of slag bath and discharge off and on (usually being called " slag tap ") with liquid form, enter cold shock and cooling in the water of shock chamber, slag bath bottom.The products of combustion of the heat after the burning that comes from burner upwards transmits through slag-drip opening, keeps the slag temperature and holds slag and iron in slag bath.Discharge the products of combustion of the heat through burning of burner to atmosphere by controlling blowdown system during deslagging, reduce shock chamber's pressure, be reduced in the differential pressure between shock chamber and gasification container, promote the intermittently discharged of slag and iron.
Slag bath is positioned at the bottom of the gasification pressurized vessel of broken coal slag gasification furnace, is used for holding molten slag and iron.During gasifier operation, slag bath constantly is subject to erosion, corrosion and the thermal shocking of slag and iron.In the operation of holder slag and deslagging, the high temperature of slag and iron and mobility can make the material of slag bath mainly suffer erosion and the effect of thermal shocking.Gasifier operation shows: the resistance to fouling of slag bath depends on shape and the geometrical dimension of the thermal conductivity of material used, slag bath foundry goods, the size that is exposed to surface-area under thermal shocking, coolant passage, length and location etc.; And its high thermal resistance is subject to the impact of consumption and the flow velocity of material, refrigerant., if the design of slag bath and material selection are improper, not only can make slag bath and slag-drip opening in the situation that there is iron to worsen very soon in high temperature and slag; Also can cause slag bath scaling loss, slag-drip opening obstruction, shorter phenomenon of life-span, its maintenance and dismounting inconvenience, the blowing out loss is huge.
The iron-smelting furnace bottom slag bath of prior art adopts and increases refractory thickness, extends working time and the life-span of slag bath.In the broken coal slag gasification furnace, can not adopt similar way.Because the broken coal slag gasification furnace is pressurized vessel, inner space is that the metal pressure container housing by outside surrounds, and therefore abundant efficient utilization of inner high-pressure space, could effectively reduce the investment of pressurized vessel; The broken coal slag gasification furnace is the individual requirement pressurized vessel of the High Temperature High Pressure of operation continuously, so the design of slag bath and the operation of the necessary assurance of operation broken coal slag gasification furnace energy continous-stable, reduces parking maintenance number of times and the repair time of because of the slag bath problem, causing.
Therefore, the those skilled in the art needs a kind of slag bath that can overcome the broken coal slag gasification furnace of existing shortcoming in above prior art.
The utility model content
The slag bath scaling loss worsens in order to solve, slag-drip opening stops up, the life-span is short, simultaneously also in order to reduce maintenance and dismounting frequency, improve continuity, the stability of vapourizing furnace operation and extend the cycle of operation, optimize the technique means such as the structural parameter of slag bath and selection by employing, the utility model aims to provide a kind of cooling performance and operating performance preferably, can avoid or tolerate erosion, corrosion and the thermal shock effect of slag and iron, life-span length and detachable maintaining are used for the annular slag bath of broken coal slag gasification furnace easily.
Unless Special Circumstances have other restrictions, otherwise the term that following definition is applicable to use in this specification sheets.
In addition, unless describe separately, the implication of all scientific and technical terminologies used herein is the same with the common understanding of the utility model those skilled in the art.As conflict, be as the criterion with this specification sheets and the definition that comprises thereof.
For the utility model, the implication of some terms that use in present specification is as follows:
" annular slag bath " refers to the structure that is used for collecting residual ash such as slag and iron that is gone out by annular slag bath component limit, and annular slag bath is arranged on the bottom of the gasification pressurized vessel of broken coal slag gasification furnace, is positioned on slag off apparatus.
" burner " refers to the combustion unit of using on the industrial fuel stove, and burner is commonly called as in the industry as " burner ".
" deslagging " refers in the broken coal slag gasification furnace, and the slag-drip opening that slag bath is crossed by slag and Tie Tong is discharged downwards off and on, enters the process in the water of shock chamber, slag bath bottom.
" horizontal slope " is the ratio of the domatic vertical height of finger ring shape slag bath inner surface of component and horizontal throw, represents in this application the size of horizontal slope with the number of degrees.
" blast orifice " refers to the gasification pressurized vessel bottom near the broken coal slag gasification furnace, be used for spraying into the combustion zone that single stream strand (as introducing steam and oxygen, air, nitrogen etc.) or process stream (as coal water slurry, tar etc.) enter vapourizing furnace, these parts are commonly called as in the industry as " nozzle ".
Section's section that " spacer segments " refers to be arranged between gasification pressurized vessel and bottom Quench container and be connected with following bottom Quench container with top gasification pressurized vessel respectively, this section is arranged on the top of shock chamber, can be rendered as the forms such as " connecting short section ", " sandwich flange ".
" other carbonaceous fuel " comprises the solid-state or liquid fuels such as solid refuse, solid carbon biomass, tar, residual oil, carbon containing biomass slip.
For annular slag bath structure, " exposed surface " refers to surface is identical surface with the internal surface of annular slag bath member.Its difference is that what " exposed surface " emphasized in this application is the internal surface that is exposed to the annular slag bath member under the slag environment in technological process.
As used herein, directional terminology " on ", D score is consistent with the concrete direction on the Figure of description paper.Term " vertically ", " vertically " refer on the Figure of description paper vertical substantially direction; And " laterally ", " level " refer on the Figure of description paper direction of level substantially.
As used herein, term " about " is that index amount, size, formula, parameter and other quantity and characteristic are coarse and need not be accurate value, but can be similar to and/or be greater than or less than exact value with exact value, so that reflection tolerance deviation, measuring error etc., and known other factors of those skilled in the art.
As this paper when describing material, method or mechanical means during with the word of " those skilled in the art is known " phrase or synonym or phrase, this term represents that described material, method and mechanical means are conventional when submitting present patent application to, and is included in this specification sheets.Be covered by equally and in this description be, but at present unconventionally will become art-recognized material, method and machinery when being applicable to similar purpose.
As used herein, term " comprises ", " containing ", " comprising ", " containing ", " having " or any other synonym or their any other modification all refer to comprising of nonexcludability.For example, comprise that technique, method, goods or the equipment of specific factor list needn't only limit to the key element that those are specifically listed, but can comprise the key element that other are not clearly listed, or the intrinsic key element of this type of technique, method, goods or equipment.
Term " by ... form ", " by ... form " or any other synonym or their any other modification all refer to comprising of exclusiveness.For example, the technique that consists of specific factor, method, goods or equipment only limit to those key elements of specifically listing.
Particularly, as described below for realizing the technical scheme that above-mentioned purpose of the present utility model adopts:
1. the annular slag bath of a broken coal slag gasification furnace, is characterized in that,
Described annular slag bath is gone out by annular slag bath component limit, is embedded with the coolant flowing pipeline of global formation in described annular slag bath member, and the import of described coolant flowing pipeline and outlet are stretched out respectively from described annular slag bath member,
Described annular slag bath is arranged on the bottom of the gasification pressurized vessel of broken coal slag gasification furnace, the upper end of the slag off apparatus of the lower end of described annular slag bath and broken coal slag gasification furnace is tightly connected, and the lower ending opening of described annular slag bath aligns with the upper end open of described slag off apparatus.
2. the annular slag bath of broken coal slag gasification furnace described according to technical scheme 1, is characterized in that, described annular slag bath member is formed by the metal or alloy casting of thermal conductivity under 20 ℃ of conditions greater than 100W/ (m.k).
3. the annular slag bath of broken coal slag gasification furnace described according to technical scheme 2, is characterized in that, described annular slag bath member is made by copper or copper alloy or nichrome.
4., according to the annular slag bath of the described broken coal slag gasification furnace of any one in aforementioned techniques scheme 1-3, it is characterized in that, the internal surface of described annular slag bath member is the convergence configuration from the upper end of described annular slag bath member towards the lower end of described annular slag bath member.
5. the annular slag bath of broken coal slag gasification furnace described according to technical scheme 4, is characterized in that, the horizontal slope of the internal surface of described annular slag bath member is 25o-60o.
6. according to the annular slag bath of the described broken coal slag gasification furnace of any one in aforementioned techniques scheme 1-5, it is characterized in that, the periphery of the lower ending opening of described annular slag bath be provided with that interior perimeter surface for the upper end open with described slag off apparatus matches to lower extension.
7. according to the annular slag bath of the described broken coal slag gasification furnace of any one in aforementioned techniques scheme 1-6, it is characterized in that, described coolant flowing pipeline is made by copper or copper alloy or nickel or nichrome, shape twist, around and arrange near the internal surface of described annular slag bath member.
8., according to the annular slag bath of the described broken coal slag gasification furnace of any one in aforementioned techniques scheme 1-7, it is characterized in that, be provided with concaveconvex structure on the outside surface of being buried underground the described coolant flowing pipeline in described annular slag bath member.
9., according to the annular slag bath of the described broken coal slag gasification furnace of any one in aforementioned techniques scheme 1-8, it is characterized in that, the import of described coolant flowing pipeline is stretched out from the upper/lower of described annular slag bath member; The outlet of described coolant flowing pipeline is stretched out from the bottom/top of described annular slag bath member.
10. the annular slag bath of broken coal slag gasification furnace described according to technical scheme 8, is characterized in that, described concaveconvex structure is ring screw.
Adopt the technical solution of the utility model can obtain following useful technique effect:
1. the material of annular slag bath of the present utility model adopts high heat conductivity metal or alloy, especially, as copper or copper alloy, can flash heat transfer, guarantee heat-transfer effect, avoid the accumulation of heat on annular slag bath member, reduce the impact that thermal shocking and high temperature bring.
2. annular slag bath of the present utility model is positioned at above slag off apparatus, forms a seam on the contact surface of annular slag bath and slag off apparatus; The periphery of the lower ending opening of annular slag bath be provided with that interior perimeter surface for the upper end open with described slag off apparatus matches with annular beak-like or annular lip mode extend to lower extension, the upper end of the lower end of annular slag bath and the slag off apparatus of broken coal slag gasification furnace is tightly connected, and the lower ending opening of described annular slag bath aligns with the upper end open of described slag off apparatus; Annular slag bath internal surface is oblique interior downward, and horizontal slope is 25o-60o.These can allow annular slag bath coordinate well the installation of slag-drip opening, annular slag bath and slag off apparatus internal surface are engaged smooth, and prevent that slag from entering weld seam, extend work-ing life and the maintenance intervals of annular slag bath, play the purpose of stablizing gasifier operation.
3. be embedded with the coolant flowing pipeline in annular slag bath member, described coolant flowing pipeline twist,, near annular slag bath inner surface of component, reduces heat transfer distances round also; Refrigerant is preferred bottom in and top out in the coolant flowing pipeline, and counter-current flow, improved driving force of heat transfer; The consumption of refrigerant and flow rate control within the specific limits, especially, during at 1-10m/s, can be kept the temperature of exposed surface when flow rate control in 200-400 ℃ of scope.These measures all can guarantee cooling performance, control the pressure drop of coolant flowing pipeline, can effectively avoid slag and the iron heat history to annular slag bath, make the temperature of annular slag bath inner surface of component keep relative low temperature and constant, reduced the annular slag bath Yin Wendu slag mineral that causes erosion and the etching problem to the slag bath metal that raise.
4. the coolant flowing pipeline adopts nickel or nichrome or copper or copper alloy, make coolant flowing pipeline in the castingprocesses of annular slag bath member can keep its original shape, and not significantly distortion, and then guaranteed the unimpeded of cooling liqs passage and circulation, avoided the leakage of refrigerant.Be provided with concaveconvex structure on the outside surface of being buried underground the coolant flowing pipeline in annular slag bath member, thereby make the coolant flowing pipeline can with annular slag bath member close contact, increase heat transfer area also for the combination that improves between coolant flowing pipeline and annular slag bath member metal, can strengthen thus to the heat transfer of refrigerant and in casting, break because of the cooling possible annular slag bath member that causes for elimination afterwards, guarantee the durable of heat-transfer effect and assurance foundry goods, extend the work-ing life of slag bath.
Description of drawings
Below in conjunction with Figure of description, the utility model is described in detail.Figure of description might not be draw in strict accordance with ratio and Figure of description be only schematic diagram.In the application's Figure of description, use same or analogous drawing reference numeral to represent same or analogous element.
Fig. 1 shows the cross section view according to the annular slag bath of the broken coal slag gasification furnace of an embodiment of the present utility model, also shows the layout of spiral coil cooling tube in figure.
Fig. 2 is the local section enlarged view of spiral coil cooling tube shown in Figure 1.
Parts and reference numerals list
| 1 | The |
| 2 | Annular |
| 3 | The |
| 4 | Lower ending opening |
| 5 | The internal surface of annular |
| 6 | The coolant flowing |
| 7 | The coolant flowing |
| 8 | To lower extension |
| 9 | The longitudinal axis of |
| 10 | Ring screw |
Embodiment
Below in conjunction with Figure of description, embodiment of the present utility model is elaborated, but it is pointed out that protection domain of the present utility model is not subjected to the restriction of these embodiments, but by claims, determined.
Fig. 1 shows the cross section view according to the annular slag bath 1 of the broken coal slag gasification furnace of an embodiment of the present utility model, also shows in the figure for example layout of spiral coil cooling tube 3 of coolant flowing pipeline.In Fig. 1, spiral coil cooling tube 3 global formations.More preferably, the coolant flowing pipeline can keep its original-shape when slag off apparatus is cast, and can not deform, and guarantees that refrigerant can circulation, in time shifts out for example heat around spiral coil cooling tube 3 of coolant flowing pipeline, guarantees to conduct heat.The those skilled in the art also can recognize: coolant flowing pipeline 3 can be one or more coil pipe.Preferably, coolant flowing pipeline 3 is made by copper or copper alloy or nickel or nichrome, shape twist, around and arrange near the internal surface 5 of described annular slag bath member 2.
Referring to Fig. 1, annular slag bath 1 is limited by annular slag bath member 2, is embedded with for example spiral coil cooling tube 3 of coolant flowing pipeline in described annular slag bath member 2, and import 6 and the outlet 7 of described coolant flowing pipeline 3 are stretched out respectively from described annular slag bath member 2.The import 6 of described coolant flowing pipeline 3 is stretched out from the upper/lower of described annular slag bath member 2; And the outlet 7 of described coolant flowing pipeline 3 is stretched out from the bottom/top of described annular slag bath member 2.Thus, refrigerant for example the flow pattern of water in described coolant flowing pipeline 3 be upper entering and lower leaving or bottom in and top out.Preferably, the import 6 of described coolant flowing pipeline 3 is arranged under the outlet 7 of described coolant flowing pipeline 3, thereby is conducive to refrigerant bottom in and top out in coolant flowing pipeline 3, realizes countercurrent heat-transfer, improves driving force of heat transfer.Described annular slag bath 1 is arranged on the bottom of the gasification pressurized vessel of broken coal slag gasification furnace, the upper end of the slag off apparatus of the lower end of described annular slag bath 1 and broken coal slag gasification furnace is tightly connected, and the lower ending opening 4 of described annular slag bath 1 aligns with the upper end open of described slag off apparatus.Also as shown in fig. 1, annular slag bath 1 has longitudinal axis 9.The periphery of the lower ending opening 4 of annular slag bath 1 be provided with interior perimeter surface for the upper end open with described slag off apparatus match and play sealing and prevent slag enter effect to lower extension 8.Extend with annular beak-like or annular lip mode this downward extension 8.
Annular slag bath member 2 is formed by the good metal or alloy casting (casting) of heat conductivility.Preferably, annular slag bath member 2 is formed by the metal or alloy casting (casting) of thermal conductivity under 20 ℃ of conditions greater than 100W/ (m.k); More preferably, annular slag bath member 2 is made by copper or copper alloy or nichrome.
Preferably, the internal surface 5 of annular slag bath member 2 is the convergence configuration from the upper end of annular slag bath member 2 towards the lower end of annular slag bath member 2; More preferably, the internal surface 5 of the annular slag bath member 2 of convergence is downward-sloping (in other words, the internal surface 5 of annular slag bath member 2 tilts towards the longitudinal axis 9 of annular slag bath 1) inwardly, and the horizontal slope of the internal surface 5 of annular slag bath member 2 is 25o-60o.Because slag is that High Temperature High Pressure flows, consider from aspects such as slag fluidity, deslagging flow rate, holder slag effects, no matter be that this horizontal slope is excessive, or this horizontal slope is too small, all can cause disadvantageous effect to technological process.
Fig. 2 is for example local section enlarged view of spiral coil cooling tube 3 of coolant flowing pipeline shown in Figure 1.As can see from Figure 2: the coolant flowing pipeline in being embedded in annular slag bath member 2 for example is provided be used to the concaveconvex structure that improves combination between spiral coil cooling tube 3 and annular slag bath member 2 on the outside surface of spiral coil cooling tube 3, one or more ring screw 10 for example, be used for improving the combination between spiral coil cooling tube 3 and annular slag bath member 2, strengthen to the heat transfer of refrigerant and in casting, break because of the cooling possible foundry goods that causes for elimination afterwards.
Below manufacture method that should annular slag bath 1 of the present utility model is carried out exemplary illustration: at first adopt known method to process spaced ring screw 10 on the smooth outer wall of pipe 3, secondly will manage 3 is rolled into the spiral coil form, be placed in mould and adopt known method that it is supported in mould, spiral coil cooling tube import 6 and spiral coil cooling tube outlet 7 are protruding from mould.Thereby copper or copper alloy to casting melting in mould are embedded in spiral coil cooling tube 3 in the main body 2 of slag off apparatus 1.This manufacture method makes main body 2 and by 3 of 3 spiral coil cooling tubes that forms of pipe, good the contact and good heat transfer is arranged.
In the time of in annular slag bath 1 is arranged on the broken coal slag gasification furnace, the downward extension 8 of periphery that is arranged on the lower ending opening 4 of annular slag bath 1 coordinates with the interior perimeter surface phase close contact of the upper end open of slag off apparatus, both form and be tightly connected, to prevent slag and iron, enter.
When vapourizing furnace operated, refrigerant is the preferred countercurrent heat-transfer mode that adopts bottom in and top out in spiral coil cooling tube 3, and refrigerant is passed into by spiral coil cooling tube import 6, from spiral coil cooling tube outlet 7, flowed out, and was used for improving driving force of heat transfer, strengthened conducting heat, and guaranteed cooling performance.Control passes into refrigerant consumption and the flow velocity of spiral coil cooling tube 3, especially, flow rate control is when 1-10m/s, can keep the slag temperature in 1200～1600 ℃ of scopes, keep the temperature of slag bath exposed surface in 200-400 ℃ of scope, thereby guarantee cooling performance, control the pressure drop of spiral coil cooling tube 3, effectively avoid slag and the iron heat history to annular slag bath, make its internal surface 5 temperature keep low temperature and constant, reduce erosion and etching problem that annular slag bath 1 raises and causes because of temperature.
Adopt the technical solution of the utility model can obtain following technique effect:
1. the material of annular slag bath 1 of the present utility model adopts high heat conductivity metal or alloy, especially, as copper or copper alloy, can flash heat transfer, guarantee heat-transfer effect, avoid the accumulation of heat on annular slag bath member 2, reduce the impact that thermal shocking and high temperature bring.
2. annular slag bath 1 of the present utility model is positioned at above slag off apparatus, forms a seam on the contact surface of annular slag bath 1 and slag off apparatus; The periphery of the lower ending opening 4 of annular slag bath 1 be provided with that interior perimeter surface for the upper end open with described slag off apparatus matches with annular beak-like or annular lip mode extend to lower extension, the upper end of the lower end of annular slag bath 1 and the slag off apparatus of broken coal slag gasification furnace is tightly connected, and the lower ending opening 4 of described annular slag bath 1 aligns with the upper end open of described slag off apparatus; Annular slag bath 1 internal surface 5 is oblique interior downward, and horizontal slope is 25o-60o.These can allow annular slag bath 1 coordinate well the installation of slag-drip opening, annular slag bath 1 and slag off apparatus internal surface are engaged smooth, and prevent that slag from entering weld seam, extend work-ing life and the maintenance intervals of annular slag bath, play the purpose of stablizing gasifier operation.
3. be embedded with the coolant flowing pipeline in annular slag bath member 2, described coolant flowing pipeline twist,, near annular slag bath member 2 internal surfaces 5, reduces heat transfer distances round also; Refrigerant is preferred bottom in and top out in the coolant flowing pipeline, and counter-current flow, improved driving force of heat transfer; The consumption of refrigerant and flow rate control within the specific limits, especially, during at 1-10m/s, can be kept the slag temperature when flow rate control in 1200～1600 ℃ of scopes, keep the temperature of exposed surface in 200-400 ℃ of scope.These measures all can guarantee cooling performance, control the pressure drop of coolant flowing pipeline 3, can effectively avoid slag and the iron heat history to annular slag bath 1, make the temperature of annular slag bath member 2 internal surfaces 5 keep low temperature and constant, reduced the annular slag bath Yin Wendu slag mineral that causes erosion and the etching problem to the slag bath metal that raise.
4. coolant flowing pipeline 3 adopts nickel or nichrome or copper or copper alloy, make coolant flowing pipeline 3 in the castingprocesses of annular slag bath member can keep its original shape, and not significantly distortion, and then guaranteed the unimpeded of cooling liqs passage and circulation, avoided the leakage of refrigerant.Be provided with concaveconvex structure on the outside surface of being buried underground the coolant flowing pipeline 3 in annular slag bath member 2, thereby make coolant flowing pipeline 3 can with annular slag bath member 2 close contacts, increase heat transfer area also for the combination that improves between coolant flowing pipeline 3 and annular slag bath member 2 metals, can strengthen thus to the heat transfer of refrigerant and in casting, break because of the cooling possible annular slag bath member 2 that causes for elimination afterwards, guarantee the durable of heat-transfer effect and assurance foundry goods, extend the work-ing life of slag bath.
Although abovely in conjunction with the embodiments embodiment of the present utility model is had been described in detail, it is pointed out that protection domain of the present utility model is not subjected to the restriction of these embodiments, but by appending claims, determined.The those skilled in the art can carry out suitable change to these embodiments in the scope that does not break away from technological thought of the present utility model and purport, and within these embodiments after changing obviously are also included within protection domain of the present utility model.
Claims (10)
1. the annular slag bath of a broken coal slag gasification furnace, is characterized in that,
Described annular slag bath is gone out by annular slag bath component limit, is embedded with the coolant flowing pipeline of global formation in described annular slag bath member, and the import of described coolant flowing pipeline and outlet are stretched out respectively from described annular slag bath member,
Described annular slag bath is arranged on the bottom of the gasification pressurized vessel of broken coal slag gasification furnace, the upper end of the slag off apparatus of the lower end of described annular slag bath and broken coal slag gasification furnace is tightly connected, and the lower ending opening of described annular slag bath aligns with the upper end open of described slag off apparatus.
2. the annular slag bath of broken coal slag gasification furnace according to claim 1, is characterized in that, described annular slag bath member is formed by the metal or alloy casting of thermal conductivity under 20 ℃ of conditions greater than 100W/ (m.k).
3. the annular slag bath of broken coal slag gasification furnace according to claim 2, is characterized in that, described annular slag bath member is made by copper or copper alloy or nichrome.
4. the annular slag bath of broken coal slag gasification furnace according to claim 1, is characterized in that, the internal surface of described annular slag bath member is the convergence configuration from the upper end of described annular slag bath member towards the lower end of described annular slag bath member.
5. the annular slag bath of broken coal slag gasification furnace according to claim 4, is characterized in that, the horizontal slope of the internal surface of described annular slag bath member is 25o-60o.
6. the annular slag bath of broken coal slag gasification furnace according to claim 1, is characterized in that, the periphery of the lower ending opening of described annular slag bath be provided with that interior perimeter surface for the upper end open with described slag off apparatus matches to lower extension.
7. the annular slag bath of broken coal slag gasification furnace according to claim 1, it is characterized in that, described coolant flowing pipeline is made by copper or copper alloy or nickel or nichrome, shape twist, around and arrange near the internal surface of described annular slag bath member.
8. the annular slag bath of broken coal slag gasification furnace according to claim 1, is characterized in that, is provided with concaveconvex structure on the outside surface of being buried underground the described coolant flowing pipeline in described annular slag bath member.
9. the annular slag bath of broken coal slag gasification furnace according to claim 1, is characterized in that, the import of described coolant flowing pipeline is stretched out from the upper/lower of described annular slag bath member; The outlet of described coolant flowing pipeline is stretched out from the bottom/top of described annular slag bath member.
10. the annular slag bath of broken coal slag gasification furnace according to claim 8, is characterized in that, described concaveconvex structure is ring screw.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215087A (en) * | 2013-04-28 | 2013-07-24 | 上海泽玛克敏达机械设备有限公司 | Annular slag basin of slack coal slag gasifier |
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2013
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215087A (en) * | 2013-04-28 | 2013-07-24 | 上海泽玛克敏达机械设备有限公司 | Annular slag basin of slack coal slag gasifier |
| CN103215087B (en) * | 2013-04-28 | 2015-02-11 | 上海泽玛克敏达机械设备有限公司 | Annular slag basin of slack coal slag gasifier |
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