CN203474733U - Clinker gasifying furnace of pressurizing fixed bed - Google Patents
Clinker gasifying furnace of pressurizing fixed bed Download PDFInfo
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- CN203474733U CN203474733U CN201320561965.9U CN201320561965U CN203474733U CN 203474733 U CN203474733 U CN 203474733U CN 201320561965 U CN201320561965 U CN 201320561965U CN 203474733 U CN203474733 U CN 203474733U
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Abstract
The utility model relates to a clinker gasifying furnace of a pressurizing fixed bed. The gasifying furnace comprises a coal lock, a transitional cabin, a pressurizing gasifying container, a connecting short piece, a chilling chamber and a clinker lock, wherein the coal lock is used for intermittently taking coal from a coal cabin and feeding coal to the pressurizing gasifying container, coal can be conveniently fed into the pressurizing gasifying container from the coal lock by virtue of the transitional cabin, the pressurizing gasifying container combusts and gasifies a carbon-containing fuel at certain temperature and pressure by virtue of a gasifying agent from a nozzle, the connecting short piece is used for gasifying operations such as discharging the clinker, chilling and emptying, the chilling chamber is used for chilling and cooling the clinker, and the clinker lock is used for storing vitreous clinker particles and discharging the clinker to the outside through a cone valve. The operating method of the gasifying furnace comprises the following steps: adjusting the temperature of a raw gas outlet; gasifying the carbon-containing fuel; adjusting the gasifying load of the gasifying furnace; controlling the operating pressure of the gasifying furnace; controlling the pressure different between the connecting short piece and the gasifying furnace, discharging the clinker out of the clinker outlet and carrying the clinker; chilling and cooling the clinker; controlling the water quantity of the chilling chamber to remove heat of the clinker; and storing the clinker particles and discharging the clinker particles to the outside.
Description
Technical field
The utility model relates to a kind of fixed-bed gasification furnace, relates more specifically to the working method of a kind of pressurization static bed slag gasification furnace and pressurization static bed slag gasification furnace.
Background technology
Representative pressurization static bed vapourizing furnace is lurgi gasifier both at home and abroad at present, and lurgi gasifier is a kind of equipment of coal pressure gasification, and adverse current gasification, is used mechanical grate to carry out dry method ash discharge; Temperature of combustion must be below the softening temperature of coal ash, adopts and sprays into temperature of combustion that a large amount of steam controls oxygen and coal coke lower than coal ash fusion temperature.There is more defect in lurgi gasifier, as low in single stove operating load, steam consumption is large, produce that wastewater flow rate is large, dry method ash discharge contaminate environment, gasification efficiency is low, running cost is high.
Except the lurgi gasifier of fixed bed, the conventional airflow bed gasification furnaces such as Shell stove (representative of dry pulverized coal stove), Texaco stove (water-coal slurry furnace representative) in addition.Their feature is: the coal that enters of Shell stove is dry pulverized coal, and oxygen and steam are vaporized chemical, about 1400 ~ 1600 ℃ of gasification temperature, vapourizing furnace temperature out is greater than approximately 1000 ℃, oxygen depletion amount is about 0.73kg/kg, and efficiency of carbon conversion is 99%, and cold gas efficiency is about 81%; Texaco stove adopts slag tap technology, and entering coal is coal water slurry, and pure oxygen is vaporized chemical, about 1400 ~ 1500 ℃ of gasification temperature, and vapourizing furnace temperature out is greater than approximately 1000 ℃, and oxygen depletion amount is 0.82kg/kg, and efficiency of carbon conversion is 98%, and cold gas efficiency is 74%.There is following shortcoming in these two kinds of conventional vapourizing furnaces: Shell stove prepare that dry pulverized coal system complex, dust discharge amount are large, disposable apparatus investment cost is high, vapourizing furnace temperature out is high and structure too complicated etc., oxygen consumption is large; The effective gas component content of Texaco stove is low, cold gas efficiency is low, coal adaptability is poor, vapourizing furnace temperature out is high, the burner life-span is short, chilling ring problem is many, the shortcomings such as oxygen consumption is large, and the structure of vapourizing furnace is too complicated, dry feed dust discharge amount is large.
Therefore,, in order to overcome the shortcoming of above-mentioned vapourizing furnace, need to provide a kind of improved pressurization static bed slag gasification furnace.
Utility model content
(1) technical problem that will solve
The purpose of this utility model is, introducing on the basis of slag tap technology, for carbonaceous fuel provides a kind of effective way to the Efficient Conversion of synthetic gas, also provide a kind of environmental protection more, better, the comprehensive higher pressurization static bed slag gasification furnace of cost performance of economy simultaneously.
(2) technical scheme
This pressurization static bed slag gasification furnace is on the basis of lurgi gasifier, through test research and development for many years, industrial amplification, design improvement a kind of novel flexible and efficient vapourizing furnace developed through business runtime verification.
According to exemplary embodiment of the present utility model, the pressurized gasification container that pressurization static bed slag gasification furnace comprises a column.Coal or other carbonaceous fuel drop into from gasification pressurized gasification container top, utilize nozzle that vaporized chemical is caused in the bottom fuel of gas pressing gasification vessel, under High Temperature High Pressure, are vaporized.Residual ash (as slag and iron) is collected in the slag bath of gas pressing gasification vessel, and slag and Tie Tong cross the slag-drip opening of slag bath and discharge off and on (being conventionally called " deslagging "), enter in the water of shock chamber, slag bath bottom.The products of combustion of heat obtains by the burner in the pipe nipple of slag-drip opening below, upwards transmits, to hold slag and the iron in a pond in slag bath through slag-drip opening with bubbling form.Blowdown system by controlled chilling chamber connecting short section is to atmospheric steam exhaust, reduces between pressure ， shock chamber's connecting short section of shock chamber's connecting short section and gas pressing gasification vessel and produces differential pressure, promotes the discharge of slag and iron.Water cycle by the water inlet pipe of connecting short section, water inlet pipe in shock chamber and rising pipe controlled chilling chamber is to remove the heat of slag.
According to exemplary embodiment of the present utility model, pressurization static bed slag gasification furnace comprises: coal lock, its be positioned at transitional storehouse top, for getting coal to the storage vessel of pressurized gasification container coal from coal bunker off and on; Transitional storehouse, it is between coal lock and vapourizing furnace, impels the coal in coal lock by gravity, to add " Y " type passage in pressurized gasification container; Pressurized gasification container, main body as gasification, its between transitional storehouse and connecting short section, utilize the nozzle of bottom introduce vaporized chemical under certain temperature and pressure by the gasification vessel of carbonic solid fuels gasification, the top raw gas outlet pipe of pressurized gasification container is discharged raw gas, and the bottom slag bath of pressurized gasification container is collected slag and discharges off and on slag by slag-drip opening; Connecting short section, it is positioned at pressurized gasification container bottom and top, shock chamber, for connecting pressurized gasification container and shock chamber, is the important connecting container that is carrying the gasification operations such as important emptying, holder slag and deslagging; Shock chamber, it is between connecting short section and slag lock, for Quench, cooling slag and utilize water cycle to remove the water-filled vessel of slag heat; With slag lock, it is for being positioned at bottom, shock chamber, for temporary transient store glass matter slag particles and by cone valve by solid slag particle discharge container out-of-bounds.The upper and lower of coal lock is provided with cone valve, and it is for controlling the parts of coal.The upper and lower of slag lock is provided with cone valve, and it is for controlling the parts of slag dumping.
According to exemplary embodiment of the present utility model, two or more coals lock consists of cylindrical upper section and tapered lower portion, and upper and lower ends opening is equipped with cone valve, and alternately to pressurize, pressure release is got coal and to pressurized gasification container coal to coal bunker.
According to exemplary embodiment of the present utility model, transitional storehouse is " Y " type, and top bifurcated respectively connects a coal lock, and its underpart is connected with the top of pressurized gasification container, impels coal to rely on gravity to enter in pressurized gasification container.
According to exemplary embodiment of the present utility model, the pressurized gasification container of column comprises: coal inlet, raw gas outlet, nozzle, slag bath and slag-drip opening.Coal inlet is positioned at the top of pressurized gasification container, raw gas outlet is positioned at the top of pressurized gasification container, nozzle (for example six or a plurality of) be evenly distributed in the same level on slag bath top, slag bath is positioned at the bottom of pressurized gasification container, and slag-drip opening is connected to the bottom of pressurized gasification container with flange.
According to exemplary embodiment of the present utility model, connecting short section comprises installation guard shield, burner, air endless tube and water inlet pipe within it.Guard shield is arranged under slag-drip opening, and lower end is immersed in the water.Burner and air endless tube all ringwise, are arranged on around the slag-drip opening on guard shield top from inside to outside.Water inlet pipe is communicated with the chilling ring in connecting short section, is arranged on the middle and upper part of connecting short section.
According to exemplary embodiment of the present utility model, shock chamber is arranged on connecting short section bottom, inner filling water, and the top of shock chamber is provided with water inlet pipe and rising pipe.
According to exemplary embodiment of the present utility model, the upper and lower opening of slag lock is equipped with cone valve, for discharging off and on the solid impurity particle of solid.
According to exemplary embodiment of the present utility model, the coal lock of arranging successively from top to down, transitional storehouse, pressurized gasification container, connecting short section, He Zhasuo center, shock chamber are all positioned on same longitudinal axis.Carbonaceous fuel is from top to bottom successively by coal lock, transitional storehouse, pressurized gasification container, and the slag producing at pressurized-gasification furnace container bottom is discharged out-of-bounds successively after connecting short section, shock chamber and slag lock.
According to exemplary embodiment of the present utility model, the various carbonaceous fuels of gasifiable a wider range, such as rubbish, biomass, plastics, low low grade coal, moulded coal, fat coal and the various propellant combinations etc. that comprise various bulks.
Particularly, the utility model also provides following technical scheme:
1. a pressurization static bed slag gasification furnace, is characterized in that, it comprises:
Coal lock, it is positioned at transitional storehouse top, for getting coal from coal bunker off and on, the backward pressurized gasification container coal that pressurizes, then pressure release is got coal from coal bunker, completes a circulation;
Transitional storehouse, it is the passage between coal lock and vapourizing furnace, is convenient to the coal in coal lock to rely on gravity to add pressurized gasification container;
Pressurized gasification container, it is between transitional storehouse and connecting short section, utilize nozzle to introduce vaporized chemical by the gasification vessel of carbonic solid fuels burning and gasification in the fuel of pressurized gasification container bottom, wherein said pressurized gasification container has for discharging top raw gas outlet pipe and the bottom slag bath of raw gas, and described bottom slag bath is collected slag and discharged slag by slag-drip opening;
Connecting short section, it is positioned at vapourizing furnace bottom and top, shock chamber, for connecting pressurized gasification container and shock chamber;
Shock chamber, it is the water-filled vessel between connecting short section and slag lock, for Quench, cooling and remove slag heat; And
Slag lock, it is the container that is positioned at bottom, shock chamber, for store glass matter solid impurity particle and by cone valve, solid slag particle is discharged out-of-bounds.
2. according to the pressurization static bed slag gasification furnace described in scheme 1, it is characterized in that, described pressurization static bed slag gasification furnace has two or more coal locks, described coal lock consists of cylindrical upper section and tapered lower portion, the upper and lower end opening of described coal lock is equipped with cone valve, for pressurising pressure release and control to vapourizing furnace coal.
3. according to the pressurization static bed slag gasification furnace described in scheme 1, it is characterized in that, described transitional storehouse is " Y " type, and the top of described transitional storehouse connects coal lock, the bottom of described transitional storehouse is connected with the top of described pressurized gasification container, for to described pressurized gasification container coal.
4. according to the pressurization static bed slag gasification furnace described in scheme 1, it is characterized in that, described pressurized gasification container comprises: coal inlet, raw gas outlet, nozzle, slag bath and slag-drip opening, wherein said coal inlet is positioned at the top of described pressurized gasification container, described raw gas outlet is positioned at the top of described pressurized gasification container, described nozzle is evenly distributed in the same horizontal plane on described slag bath top, described slag bath is positioned at the bottom of described pressurized gasification container, and described slag-drip opening is connected to the bottom of described pressurized gasification container with flange.
5. according to the pressurization static bed slag gasification furnace described in scheme 1, it is characterized in that, described connecting short section comprises guard shield, burner, air endless tube and the water inlet pipe being arranged on wherein, wherein said guard shield is arranged under described slag-drip opening and lower end is immersed in the water, described burner and described air endless tube are all ringwise, be arranged on from inside to outside around the slag-drip opening on described guard shield top, water inlet pipe is communicated with the chilling ring in connecting short section, is arranged on the middle and upper part of connecting short section.
6. according to the pressurization static bed slag gasification furnace described in scheme 1, it is characterized in that, described shock chamber is arranged on the bottom of described connecting short section, its inner filling water, and its top is provided with water inlet pipe, and bottom is provided with rising pipe.
7. according to the pressurization static bed slag gasification furnace described in scheme 1, it is characterized in that, the upper and lower part opening of described slag lock is equipped with cone valve, for punching press pressure release off and on to discharge solid slag particle.
8. a working method for pressurization static bed slag gasification furnace, is characterized in that, it comprises the following steps:
Use coal lock and transitional storehouse continuously or with gap to pressurized gasification container coal, adjusting raw gas temperature out and load;
The pressurized gasification container of use between transitional storehouse and connecting short section, utilizes the nozzle of its underpart to introduce vaporized chemical by solid carbon fuel combustion and gasification;
Use is positioned at the flowrate control valve on the nozzle upstream pipeline of bottom, controls the gasification load that the vaporized chemical that enters vapourizing furnace loads to adjust vapourizing furnace;
With the working pressure that is positioned at pressure controlled valve on raw gas outlet pipe downstream line and controls vapourizing furnace;
With being positioned at the air input of valve switch, burner and air endless tube on the blow-down pipe of connecting short section and air inlet proportioning is carried out the differential pressure of control linkage pipe nipple and vapourizing furnace, the deslagging of slag-drip opening and holder slag operation;
The shock chamber of use between connecting short section and slag lock, comes Quench and cooling slag by the water in shock chamber, forms glassiness solid impurity particle;
Use is positioned at water inlet pipe, the water inlet pipe in shock chamber and the rising pipe of connecting short section and controls water cycle to remove the heat of slag, makes slag temperature drop low;
The slag lock that use is positioned under shock chamber stores solid impurity particle, and the cone valve of locking by slag is discharged vitreous solid impurity particle out-of-bounds.
9. according to the working method of the pressurization static bed slag gasification furnace described in scheme 8, it is characterized in that, described pressurized gasification container comprises: coal inlet, raw gas outlet, nozzle, slag bath and slag-drip opening, wherein said coal inlet is positioned at the top of described pressurized gasification container, described raw gas outlet is positioned at the top of described pressurized gasification container, described nozzle is evenly distributed in the same horizontal plane on described slag bath top, described slag bath is positioned at the bottom of described pressurized gasification container, and described slag-drip opening is connected to the bottom of described pressurized gasification container with flange.
10. according to the working method of the pressurization static bed slag gasification furnace described in scheme 8, it is characterized in that, described connecting short section comprises guard shield, burner, air endless tube and the water inlet pipe being arranged on wherein, wherein said guard shield is arranged under described slag-drip opening and lower end is immersed in the water, described burner and described air endless tube are all ringwise, be arranged on from inside to outside around the slag-drip opening on described guard shield top, water inlet pipe is communicated with the chilling ring in connecting short section, is arranged on the middle and upper part of connecting short section.
(3) beneficial effect
It is moulded coal or lump coal that pressurization static bed slag gasification furnace of the present utility model enters coal, and oxygen and steam are vaporized chemical, and vapourizing furnace temperature out is 300-550 ℃, and oxygen depletion amount is 0.49kg/kg, and efficiency of carbon conversion is higher than 99.5%, and cold gas efficiency is 89%.Therefore, compare with the vapourizing furnace of other two kinds of common type, this pressurization static bed slag gasification furnace has that coal adaptability is strong, slag tap is pollution-free, efficiency of carbon conversion is high, low, the effective gas component content advantages of higher of disposable apparatus investment concurrently, is better, the comprehensive higher fixed-bed gasification furnace of cost performance of a kind of environmental protection more, economy.
In design of the present utility model, compare with the lurgi gasifier of same inner diameter, use the mechanical grate that has replaced lurgi gasifier with the fire-resistant molten slag bath of centre bottom deslagging outlet, with slag tap, replace dry method ash discharge, on gasifying process, obtained good optimization, make the transition heat efficiency of coal coal gas processed higher, reach 90% left and right, and lurgi gasifier can only reach 70% left and right; Single stove load is higher, can reduce by a half-gasification oven number of units, and vapourizing furnace number of units is half of lurgi gasifier number of units; Process steam consumption significantly reduces, and is sixth to ten/mono-of lurgi gasifier, has greatly reduced thus boiler scale, reduces boiler energy consumption; Wastewater flow rate significantly reduces, and has saved wastewater treatment investment, more easily realizes waste water recycling or " zero " discharge; CO in raw gas
2content is few, reduces carbon emission; Efficiency of carbon conversion is higher than 99.5%, and in slag, carbon residue amount, lower than 0.5%, be the nontoxic glass dregs of non-diafiltration, and in lurgi gasifier ash, carbon residue amount is 6% left and right.
Particularly, adopt the technical solution of the utility model, can obtain following technique effect:
1, slag tap makes efficiency of carbon conversion higher, and the glassiness solid impurity particle that slag forms through Quench is pollution-free.Because slag bath slag temperature is between 1300-1600 ℃, can make unconverted carbon further be transformed in slag bath, make efficiency of carbon conversion up to 99.8%; Slag is discharged after slag-drip opening, directly enters Quench and cooling in the water of shock chamber, and the glassiness solid impurity particle of discharge is pollution-free, can be used as byproduct in building and the middle use of building the road, or backfill or buried safely.
2, heat of gasification efficiency is high, invests low.Owing to having the overall flow principle of the adverse current gasification of the gasification of modern high-temperature slag and moving-bed concurrently, improved heat of gasification efficiency, make the significantly reduction of oxygen consumption of other slag gasification technologies of oxygen loss-rate of gasification, significantly saved the grade investment of equipment of sky.
3, waste heat recovery cost is low.The temperature out of raw gas is only 300～550 ℃, has improved the thermo-efficiency of gasification, has saved oxygen depletion, has significantly reduced demand and the equipment cost of waste heat recovery.
4, wide, the strong adaptability of the range of choice of coal.The gasifiable refinery coke of this vapourizing furnace, metallurgical coke, hard coal, bituminous coal, sub-bituminous coal, brown coal, and the mixed material feeding of these coals; For high ash melting point coal seed, only need to add limestone flux.Variation to ature of coal in operating process is insensitive, can switch online different gasified raw materials.
5, resource utilization is high, pollution-free.More than 99.5% carbon is converted into after gas, and in coal, remaining mineral substance at high temperature melts, and through recirculated water Quench, forms and is discharged by furnace bottom without the vitreous solid disintegrating slag particle of diafiltration.The slag of discharging is pollution-free, can be used as byproduct in building and the middle use of building the road, or backfill or buried safely.The condensed steam that gasification waste water is mainly discharged after stove inner drying from the coal that feeds intake, the water yield is little, and the concentration of organic content is high, is conducive to compared with separated under lower production cost, and phenol and the ammonia of recovery have higher-value as byproduct.After adopting appropriate degree of depth water technology, can make the water quality after purifying reach the first discharge standard requirement of Chinese river, or all reclaim and recycle as technique or cooling water.
6, to compare advantage large with other domestic and international gasification technologies.The cold gas efficiency high (>89%) of this vapourizing furnace, efficiency of carbon conversion high (>99.5%), thermo-efficiency are high, oxygen consumption is low, system operation reliability is high, maintenance cost is low.
Provided description is provided and will be more obviously seen the more suitable application area of the utility model.Should be appreciated that the description of this part and specific examples, only for explanation, do not limit scope of the present utility model.
Accompanying drawing explanation
By reference to the accompanying drawings, by preferred embodiment provided herein, can understand better the utility model.Accompanying drawing provided herein is for illustration purpose, and can not limit scope of the present utility model, in the accompanying drawings:
Fig. 1 is according to the schematic diagram of the pressurization static bed slag gasification furnace of embodiment of the present utility model;
Fig. 2 is according to the layout schematic diagram of burner, air endless tube and blow-down pipe between slag-drip opening and guard shield in the connecting short section of embodiment of the present utility model.
Embodiment
Now with reference to accompanying drawing, embodiment of the present utility model is more fully described.Following description is only exemplary in essence, does not limit the utility model and application thereof or use.
As shown in Figure 1, according to the pressurization static bed slag gasification furnace of embodiment of the present utility model, comprise and in coal lock 1(figure, shown two coals locks), transitional storehouse 2, pressurized gasification container 3, connecting short section 4, shock chamber 5 and slag lock 6.Coal lock 1 be positioned at transitional storehouse 2 tops, for getting coal to the storage vessel of pressurized gasification container 3 coals from coal bunker (not shown) off and on.Transitional storehouse 2 is between coal lock 1 and pressurized gasification container 3, impels the coal in coal lock 1 by gravity, to enter " Y " type passage of pressurized gasification container 3.Pressurized gasification container 3 is as the main body for gasifying, be between transitional storehouse 2 and connecting short section 4, utilize nozzle 9 to introduce the gasification vessel that vaporized chemical gasifies carbonic solid fuels under certain temperature and pressure, the top raw gas outlet pipe 13 of pressurized gasification container 3 is discharged raw gas, bottom slag bath 10 stores slag and discharges slag by slag-drip opening 11, and wherein slag-drip opening is connected to the bottom of pressurized gasification container 3 with flange.Connecting short section 4 is positioned at pressurized gasification container 3 bottoms, 5 tops, shock chamber, connects pressurized gasification container 3 and shock chamber 5, is the important container that is carrying the gasification operations such as important emptying, deslagging, Quench, holder slag.Shock chamber 5 is between connecting short section 4 and slag lock 6, for Quench, cooling and utilize water cycle to remove the water-filled vessel of slag heat.Slag lock 6 is the bottoms that are positioned at shock chamber 5, for store glass matter solid impurity particle and small part chilled water and solid slag particle is discharged to container out-of-bounds.The upper and lower of coal lock 1 is respectively equipped with cone valve 7,8, and they are for controlling the parts of coal, and the upper and lower of slag lock 6 is respectively equipped with cone valve 14,15, and they are for controlling the parts of slag dumping.
Use the gasifiable various carbonaceous fuels of this device, as refinery coke, metallurgical coke, hard coal, bituminous coal, sub-bituminous coal, brown coal, or even rubbish, and the mixed material feeding of these coals or rubbish etc.For high ash melting point coal seed, only need to add corresponding fusing assistant.Variation to ature of coal in operating process is insensitive, can switch online different gasified raw materials.
Coal or other carbonaceous fuel are from top to bottom successively through coal lock 1, " Y " type transitional storehouse 2, pressurized gasification container 3, in pressurized gasification container 3, after heating, dry, destructive distillation, gasification and burning slag, coal ash becomes slag, be collected in slag bath 10, by slag-drip opening 11, discharged, through connecting short section 4, enter in the water of shock chamber 5 by Quench and cooling, the glassiness solid impurity particle of formation in slag lock 6 of short duration storages intermittently discharge is out-of-bounds.Glassiness slag can directly be used for paving the way or doing brick, nontoxic.
Coal or other carbonaceous fuel are on the top and the back flow of gas heat exchange of burning and gasifying from pressurized gasification container bottom of pressurized gasification container 3, heating and evaporation produce coal or other carbonaceous fuel in moisture, after drying and destructive distillation, coal or other carbonaceous fuel progressively change coke into.Bottom at pressurized gasification container 3, utilize the nozzle 9 of pressurized gasification container 3 bottoms that vaporized chemical (as the mixture of the mixture of steam and oxygen or carbon dioxide and oxygen) is caused in solid carbon fuel (coke), under High Temperature High Pressure, make its burning and gasification.And use the flowrate control valve (not shown) on nozzle 9 upstream lines of pressurized gasification container 3 bottoms, control the gasification load that the vaporized chemical that enters vapourizing furnace loads to adjust vapourizing furnace.The gas that burning and gasification produce upwards with after coal or other carbonaceous fuel countercurrent flow is discharged by raw gas outlet pipe 13, after wash cooling, export battery limit (BL), wherein with the working pressure that is positioned at pressure controlled valve (not shown) on the downstream line of raw gas outlet pipe 13 and controls vapourizing furnace.The ash content that gasification produces is collected in the slag bath 10 of gasification container as slag and iron, and slag and Tie Tong cross the slag-drip opening 11 of slag bath 10 and discharge off and on (being conventionally called " deslagging "), enters in the water of shock chamber, bottom 5 by Quench and cooling.Water inlet pipe 19 and rising pipe 20 by the water inlet pipe 19, shock chamber 5 on connecting short section 4 carry out water cycle, to remove the heat of slag.
With reference to Fig. 2, it is according to the layout schematic diagram of burner 12, air endless tube 17, blow-down pipe and water inlet pipe between slag-drip opening and guard shield in the connecting short section of embodiment of the present utility model.As shown in Figure 2, the products of combustion of heat obtains by the burner 12 in connecting short section 4, wherein air endless tube 17 passes into air or other combustion-supporting gas in order to aid burning, upwards transmits, to hold slag and the iron in a pond in slag bath 10 through the vertical column circular hole of slag-drip opening 11 with bubbling form.Blow-down pipe 16 by controlling blowdown system, to atmospheric steam exhaust, reduces the pressure of connecting short section 4, between connecting short section 4 and pressurized gasification container 3, produces differential pressure, promotes the discharge of slag and iron.With being positioned at the air input of valve switch, burner and air endless tube 17 on the blow-down pipe of connecting short section 4 and air inlet proportioning is carried out the differential pressure of control linkage pipe nipple and vapourizing furnace, the deslagging of slag-drip opening and holder slag operation.The shock chamber of use between connecting short section and slag lock, comes Quench and cooling slag by the water in shock chamber, forms vitreous solid impurity particle.Use is positioned at water inlet pipe, the water inlet pipe in shock chamber and the rising pipe of connecting short section and controls water cycle to remove the heat of slag, makes slag temperature drop low.The slag lock that use is positioned under shock chamber stores solid impurity particle, and the cone valve of locking by slag is discharged vitreous solid impurity particle out-of-bounds.
The equipment relating in the utility model is pressurized vessel, can use national standard design of pressure vessels Specification Design.
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.If conflict occurs, with this specification sheets and the definition that comprises thereof, be as the criterion.
For the utility model, the implication of some terms that use in present specification is as follows:
" burner " refers to the combustion unit of using on industrial furnace, and burner is commonly called as in the industry as " burner ".
" blast orifice " refers to the gasification pressurized vessel bottom near fixed bed slag gasification furnace, be used for spraying into the combustion zone that single stream strand (as introduced mixture, air, nitrogen and the carbonic acid gas etc. of steam and oxygen) or process stream (as coal water slurry, dry pulverized coal and tar etc.) enter vapourizing furnace, these parts are commonly called as in the industry as " nozzle ".
" deslagging " refers in fixed bed slag gasification furnace, and slag and Tie Tong cross the slag-drip opening of slag bath and discharge downwards off and on, enter the process in shock chamber, slag bath bottom water.
When herein when describing material, method or equipment 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 in this description, but at present unconventionally when being applicable to similar object, will become art-recognized material, method and equipment.
With reference to specific embodiment, describe the utility model in detail above, obviously, in the situation that do not depart from the utility model scope defined in claims, can change and change.More specifically, preferred or favourable although aspects more of the present utility model are confirmed as in this article, the utility model needn't be limited to these preferred embodiments of the present utility model.
Claims (7)
1. a pressurization static bed slag gasification furnace, is characterized in that, it comprises:
Coal lock, it is positioned at transitional storehouse top, for getting coal from coal bunker off and on, the backward pressurized gasification container coal that pressurizes, then pressure release is got coal from coal bunker, completes a circulation;
Transitional storehouse, it is the passage between coal lock and vapourizing furnace, is convenient to the coal in coal lock to rely on gravity to add pressurized gasification container;
Pressurized gasification container, it is between transitional storehouse and connecting short section, utilize nozzle to introduce vaporized chemical by the gasification vessel of carbonic solid fuels burning and gasification in the fuel of pressurized gasification container bottom, wherein said pressurized gasification container has for discharging top raw gas outlet pipe and the bottom slag bath of raw gas, and described bottom slag bath is collected slag and discharged slag by slag-drip opening;
Connecting short section, it is positioned at vapourizing furnace bottom and top, shock chamber, for connecting pressurized gasification container and shock chamber;
Shock chamber, it is the water-filled vessel between connecting short section and slag lock, for Quench, cooling and remove slag heat; And
Slag lock, it is the container that is positioned at bottom, shock chamber, for store glass matter solid impurity particle and by cone valve, solid slag particle is discharged out-of-bounds.
2. pressurization static bed slag gasification furnace according to claim 1, it is characterized in that, described pressurization static bed slag gasification furnace has two or more coal locks, described coal lock consists of cylindrical upper section and tapered lower portion, the upper and lower end opening of described coal lock is equipped with cone valve, for pressurising pressure release and control to vapourizing furnace coal.
3. pressurization static bed slag gasification furnace according to claim 1, it is characterized in that, described transitional storehouse is " Y " type, and the top of described transitional storehouse connects coal lock, the bottom of described transitional storehouse is connected with the top of described pressurized gasification container, for to described pressurized gasification container coal.
4. pressurization static bed slag gasification furnace according to claim 1, it is characterized in that, described pressurized gasification container comprises: coal inlet, raw gas outlet, nozzle, slag bath and slag-drip opening, wherein said coal inlet is positioned at the top of described pressurized gasification container, described raw gas outlet is positioned at the top of described pressurized gasification container, described nozzle is evenly distributed in the same horizontal plane on described slag bath top, described slag bath is positioned at the bottom of described pressurized gasification container, and described slag-drip opening is connected to the bottom of described pressurized gasification container with flange.
5. pressurization static bed slag gasification furnace according to claim 1, it is characterized in that, described connecting short section comprises guard shield, burner, air endless tube and the water inlet pipe being arranged on wherein, wherein said guard shield is arranged under described slag-drip opening and lower end is immersed in the water, described burner and described air endless tube are all ringwise, be arranged on from inside to outside around the slag-drip opening on described guard shield top, water inlet pipe is communicated with the chilling ring in connecting short section, is arranged on the middle and upper part of connecting short section.
6. pressurization static bed slag gasification furnace according to claim 1, is characterized in that, described shock chamber is arranged on the bottom of described connecting short section, its inner filling water, and its top is provided with water inlet pipe, and bottom is provided with rising pipe.
7. pressurization static bed slag gasification furnace according to claim 1, is characterized in that, the upper and lower part opening of described slag lock is equipped with cone valve, for punching press pressure release off and on to discharge solid slag particle.
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| CN201320561965.9U CN203474733U (en) | 2013-09-11 | 2013-09-11 | Clinker gasifying furnace of pressurizing fixed bed |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320561965.9U CN203474733U (en) | 2013-09-11 | 2013-09-11 | Clinker gasifying furnace of pressurizing fixed bed |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165310A (en) * | 2018-03-06 | 2018-06-15 | 中薪油武汉化工工程技术有限公司 | Slag Quench deslagging integral type fixed-bed gasification furnace |
| CN113683305A (en) * | 2021-08-03 | 2021-11-23 | 东方电气集团科学技术研究院有限公司 | System for melting, harmless and cooperative disposal of household garbage incineration fly ash |
-
2013
- 2013-09-11 CN CN201320561965.9U patent/CN203474733U/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108165310A (en) * | 2018-03-06 | 2018-06-15 | 中薪油武汉化工工程技术有限公司 | Slag Quench deslagging integral type fixed-bed gasification furnace |
| CN113683305A (en) * | 2021-08-03 | 2021-11-23 | 东方电气集团科学技术研究院有限公司 | System for melting, harmless and cooperative disposal of household garbage incineration fly ash |
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