CN104560212A - Multi-section water-cooling wall high-efficiency chilling gasification device - Google Patents
Multi-section water-cooling wall high-efficiency chilling gasification device Download PDFInfo
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- CN104560212A CN104560212A CN201510032768.1A CN201510032768A CN104560212A CN 104560212 A CN104560212 A CN 104560212A CN 201510032768 A CN201510032768 A CN 201510032768A CN 104560212 A CN104560212 A CN 104560212A
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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
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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
- C10J3/50—Fuel charging devices
- C10J3/506—Fuel charging devices for entrained flow gasifiers
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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
- C10J3/72—Other features
- C10J3/74—Construction of shells or jackets
- C10J3/76—Water jackets; Steam boiler-jackets
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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
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/152—Nozzles or lances for introducing gas, liquids or suspensions
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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
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
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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
- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
- C10J2300/1615—Stripping
Abstract
The invention relates to a multi-section water-cooling wall high-efficiency chilling gasification device. The multi-section water-cooling wall high-efficiency chilling gasification device comprises spray nozzles, a gasification chamber and a high-efficiency chilling device, wherein the gasification chamber is arranged on the upper part of the high-efficiency chilling device, and one or more spray nozzles are installed on a top flange of the gasification chamber; the gasification chamber is formed by one or more sections of water cooling walls, each water cooling wall is in a tabulation form or a tube winding form, a water outlet of each section of water cooling wall is arranged above the same section of water cooling wall, and the exterior of the water cooling wall is connected with a water supply device. The diameter of the gasification chamber is equivalent to that of the high-efficiency chilling device; each water cooling wall is connected with a slag opening of the gasification chamber in a plugging manner; a slag opening section is not provided with a water cooling wall; each spray nozzle is in a combined nozzle structure. A space is reserved for installing and overhauling the water cooling wall of a gasification furnace, the convenience is provided for examining the leakage and replacing each water cooling wall, and the real production requirement can be met.
Description
Technical field
The invention belongs to technical field of new energies, relate to the efficient quenching gasification device of a kind of multistage water wall.
Background technology
After 20 century 70s occur world oil crisis mid-term, clean coal technology research, development and application become the strategic research emphasis of national governments' strategy of sustainable development and energy security.Coal Gasification Technology is important channel and the means of clean utilization coal resources.Gasification is that coal is converted into the technology of synthetic gas, fuel gas through incomplete combustion.In vapourizing furnace, coal and water, steam or CO effect are converted into synthetic gas, fuel gas.In coal, contained mineral substance (ash) changes into lime-ash, and sulphur is converted into hydrogen sulfide, and remove through purification and generate sulphur or change into sulfuric acid further, nitrogen (comprising chlorine) is converted into NOx, NH
3, can remove through purification.Clean air can as town gas, fuel for power generation gas, also can be used for production chemical product (as synthetic ammonia, methyl alcohol etc.) and cleaner engines fuel (as hydrogen, gasoline, diesel oil, ether, alcohol ate etc.).
Entrained flow bed gasification technology is one of efficient, the most clean present coal utilization technology, represent the development trend of Coal Gasification Technology, entrained flow bed gasification technology is divided into coal water slurry and fine coal two kinds of modes according to the difference of feed state, vapourizing furnace is divided into coal water slurry and dry pulverized coal two class from feed states, coal water slurry charging take Texaco gasifier as representative, dry pulverized coal charging with Shell vapourizing furnace for representative.Texaco gasifier is single nozzle structure, nozzle axis and the dead in line of vapourizing furnace cinder notch, and in vapourizing furnace main body axis, the stop mean time of material in vapourizing furnace is 5s, has the material of 55% to make efficiency of carbon conversion not high enough outside the time effusion stove being less than 5s; The not high cycle making vapourizing furnace change brick in the work-ing life of lining of fire brick is very long, and replacement charge and idle cost increase greatly.The vapourizing furnace combustion chamber of current operation extensively adopts the principle of " with slag anti-slag " to use water wall lining, and be divided into coil tube type and shell and tube, the passage cinder notch section of choren vapourizing furnace between combustion chamber and shock chamber arranges water wall, and flow is at 20 ~ 30m
3between, find in actual motion, cinder notch section water wall serves retroaction, because its existence, vapourizing furnace slag is reduced suddenly through cinder notch temperature, the resistance to flow of slag increases, occur that slag blocks up phenomenon at cinder notch place, the treatment measures taked on producing improve gasifier temperature, improves the mobility of slag, slag is discharged smoothly.When leaking appears in water wall, detect the difficult point that leakage point becomes actual production, leakage point could found and repairing when parking maintenance.The type of cooling that water wall is taked is generally bottom water inlet, top water outlet, cooling reverse with air flow line, like this, the thermograde of water wall bottom water temperature changes greatly, the thermograde change on top is less, and the upper area of water wall is close to nozzle, undergo the severe environment of High Temperature High Pressure and high-heating radiation, the probability that water wall leakage occurs is larger.Nozzle is also the important component part of vapourizing furnace, is divided into ignition burner and technique nozzle according to function is unusual, and ignition burner is mainly used in igniting and uses, and technique nozzle is used for feeding intake and running use.Traditional Inferior of Texaco Gasification Technology first uses ignition burner baker Replacement procedure nozzle again, and whole startup procedure needs the time of 7 ~ 8 days and driving cost is high, is unfavorable for the competition in more and more fierce gasification market.
The shock chamber of vapourizing furnace is the important component part of vapourizing furnace, the heat and mass transfer process of inside, vapourizing furnace shock chamber is rapidly complicated, be one of key link in gasifying process operating process, control badly to there will be the problems such as synthesis band of gas water, synthetic gas ash content water/gas that is high, synthetic gas is defective, shock chamber's inside liquid level keeps incessantly, downtake burns out.Texaco gasifier shock chamber is made up of chilling ring, downtake and upcast, and between combustion chamber and shock chamber, passage is cinder notch, and be chilling ring below cinder notch, chilling ring coupled underneath downtake, and the lower end of downtake is deep into below the normal level of shock chamber.The outside of downtake is upcast, and upcast is coaxial with downtake, and a traverse baffle playing baffling effect is arranged at the top of upcast, and traverse baffle is umbrella-shaped baffle obliquely, is fixed at the bottom of the cone of combustion chamber.First synthetic gas rises along upcast after leaving the liquid level of shock chamber, and after rising to the top of upcast, the effect that synthetic gas can be subject to traverse baffle changes direction, first downward baffling, then to rising, leaves shock chamber from the syngas outlet of shock chamber.Bubble due to synthetic gas has larger energy, so can carry large quantity of fluid secretly when the water surface of the bubble effusion shock chamber of synthetic gas, causes the problem that the water/gas of synthetic gas is defective, inside liquid level maintenance in shock chamber's does not live.The internal circulating load in Heisui River in shock chamber is up to 2050m to have data to show
3/ h, this is about as much as 2O times that enters shock chamber's make up water, is finally taken out of the Heisui River amount of shock chamber also up to 40m
3/ h.While synthesis gas carrying liquid, in water, micron-sized thin ash is also taken away shock chamber, causes the problem that synthetic gas ash content is high.
From the vapourizing furnace cinder notch high-temperature synthesis gas of 1300 DEG C out the process declined along downtake, between the Quench moisture film that the synthetic gas of high temperature, flying dust, molten ash and downtake inwall are covered with, there is heat and mass transfer process complicated rapidly.The temperature of high-temperature synthesis gas, flying dust, molten ash reduces rapidly, and the temperature of Quench moisture film raises rapidly, and has partial-chilled water promptly evaporated under high temperature heat radiation and enter into synthetic gas.The unusual complexity of the heat and mass that gas in downtake, solid, liquid three are alternate and flow process and rapidly, result of study according to multidimensional simulation shows, the variable gradient that the synthetic gas of high temperature declines to synthetic gas temperature in the scope of lower 0.8m after leaving cinder notch is maximum, heat exchange duty amount between synthetic gas and chilled water is maximum, the thermal stresses that this region downtake bears is also maximum, is thus easier to downtake crackle, bulge occur, is out of shape even burning hole at this section ratio.The fact also proves that the probability of 0.4 ~ 0.8m section generation problem below the cinder notch of combustion chamber is higher simultaneously; reason is that the thermal stresses that this section downtake of one side bears is larger; the steam output of chilled water is larger on the other hand; the protection liquid film of sending down abnormally ascending inside pipe wall is relatively thin; temperature is also higher, easily goes wrong so compare.
The object of the invention is to overcome the deficiencies in the prior art, solve water wall space for maintenance limited, synthetic gas goes out the problems such as shock chamber's band water, synthetic gas ash content water/gas that is high, synthetic gas is defective, shock chamber's inside liquid level keeps incessantly, downtake burns out, ensure that gasifier water-cooling wall is with slag anti-slag effect, and the washing effect of high-temperature crude synthesis gas and slag, extend the work-ing life of chilling device downtake, realize the steady running of gasification installation, invent the efficient quenching gasification device of a kind of multistage water wall.
Summary of the invention
In order to the water wall space for maintenance overcoming the existence of existing gasification installation is limited, synthetic gas goes out the problems such as shock chamber's band water, synthetic gas ash content water/gas that is high, synthetic gas is defective, shock chamber's inside liquid level keeps incessantly, downtake burns out, and the invention provides the efficient quenching gasification device of a kind of multistage water wall.
The technical solution adopted for the present invention to solve the technical problems is:
The efficient quenching gasification device of a kind of multistage water wall, comprise nozzle, vaporizer and efficient chilling device, vaporizer is arranged on the top of efficient chilling device, and one or more nozzle is arranged in vaporizer top flange;
Vaporizer is made up of water wall, and water wall is shell and tube or around tubular type, water wall is one or more snippets, and the water outlet of each section of water wall is positioned at the top of same section of water wall, and water wall outside connects water equipment.
Described vaporizer diameter is identical with efficient chilling device diameter.
When described nozzle is one, nozzle is arranged on flange center; When nozzle is two, nozzle and gasification chamber axis are positioned at same plane, and nozzle is centroclinal towards vaporizer, and nozzle and vaporizer axis are 10 ~ 70 ° of angles; When nozzle is three, nozzle is evenly arranged on on the vaporizer flange center circle that is the center of circle, and nozzle is centroclinal towards vaporizer, is 20 ~ 60 ° of angles with vaporizer axis; When the number of nozzle is four or more, a nozzle is arranged on center, and other nozzles are distributed on on the vaporizer flange center circle that is the center of circle, and nozzle is centroclinal towards vaporizer, is 10 ~ 60 ° of angles with vaporizer central axis.
Outside downtake, the below of chilling ring is provided with downtake protector.
Described water wall is connected with vaporizer cinder notch takes socket joint form.
Described vaporizer does not arrange water wall in cinder notch section.
Described nozzle is multi-channel structure, and inside is provided with fuel gas passageway, combustion-supporting gas channel, fuel channel, carries high-energy firing gun and fire defector apparatus.
Advantageous effect of the present invention is: the present invention adopts the unitized construction of the multiple nozzle of overhead, multistage water wall and efficient chilling device, eliminate cinder notch section water wall, vaporizer top flange diameter is arranged to suitable with vaporizer diameter, water wall and cinder notch section adopt bell and spigot frame, reserve space to the installation of gasifier water-cooling wall and maintenance, be more conducive to the demand of actual production.Nozzle adopts integrated structure, and same nozzle can complete igniting and the function that feeds intake.The layout of efficient chilling device internal structure, better make use of washing and the purification that existing space carries out synthetic gas and slag.This gasification installation maintains existing vapourizing furnace advantage, has done very large improvement on this basis, significant to the actual motion of existing gasification installation.
Accompanying drawing explanation
Fig. 1 is the efficient quenching gasification device structural representation of multistage water wall.
Fig. 2 is nozzle arrangements schematic diagram.
Fig. 3 is multistage water wall structure figure.
Fig. 4 is chilling ring structure iron.
Fig. 5 is chilling ring vertical view.
Fig. 6 is downtake protector structure schematic diagram.
Fig. 7 is round trip overflow wet cyclone vertical view.
Fig. 8 is round trip overflow wet cyclone broken section enlarged view.
Fig. 9 is bouffancy plate vertical view.
In accompanying drawing: 1. nozzle; 101. fuel gas passageway; 102. combustion-supporting gas channel; 103. fuel channel; 104. fire defector apparatuses; 105. high-energy firing gun; 2. vaporizer; 3. efficient chilling device; 4. water wall; 401. first paragraph water wall water inlets; 402. first paragraph water wall water outlets; 403. second segment water wall water inlets; 404. second segment water wall water outlets; 405. N section water wall water inlets; 406. N section water wall water outlets; 5. chilling ring; 501. pushing off the slag nails; 502. outer lip rings; 503. epipharynx rings; 504. Quench liquid distributing chamber; 505. dredging silk holes; 506. cooling fluid transfer limes; 507. Quench pendular ring gaps; 508. Quench liquid mouth sprays; 509. slag blocking ring; 510. Quench liquid passing hole; 6. housing; 7. downtake; 8. bouffancy plate; 801. excircle board; Plectane in 802.; 803. cover pressing plate; 804. middle layer; 9. vaporizer cinder notch; 10. round trip overflow wet cyclone; Journey spinning liquid plate in 1001.; 1002. outer journey spinning liquid plates; 1003. Overflow Cone; 11. downtake protectors; 1101. flow deflector; 1102. downtake protector water inlets; 1103. downtake protector water outlets.
Embodiment
The present invention is limited in order to overcome existing gasification installation water wall space for maintenance, synthetic gas goes out the problems such as shock chamber's band water, synthetic gas ash content water/gas that is high, synthetic gas is defective, shock chamber's inside liquid level keeps incessantly, downtake burns out, and the optimal way of the technical scheme taked is described further.
The efficient quenching gasification device of a kind of multistage water wall, comprise nozzle 1, vaporizer 2 and efficient chilling device 3, vaporizer 2 and efficient chilling device 3 are combined, vaporizer 2 diameter and efficient chilling device 3 diameter proportion are 1:1, vaporizer 2 is arranged on the top of efficient chilling device 3, and nozzle 1 is arranged in vaporizer 2 top flange.A central axis copline of nozzle 1 and vaporizer 2.
The number of described nozzle 1 is N(N >=1).As N=1, nozzle 1 is arranged on the central position of flange; As N=2, nozzle 1 is symmetricly set on the central axis both sides of flange, is that 10 ~ 70 ° of angles are arranged, towards the center of vaporizer 2 respectively with vapourizing furnace central axis; As N=3, nozzle 1 be evenly arranged on flange center be the center of circle circle on, nozzle 1 and vapourizing furnace axis copline, in 20 ~ 60 ° of angles between nozzle 1 and vapourizing furnace axis, towards the center of vaporizer 2; When N >=4, one of them nozzle 1 is arranged on central position, other N-1 nozzle be distributed on flange center be the center of circle circle on, between adjacent nozzle central angle be 360 °/(N-1), in 10 ~ 60 ° of angles between vapourizing furnace central axis and nozzle 1, towards the center of vaporizer 2.The quantity of top jet nozzle 1 is determined by the day practical situation such as treatment scale of vapourizing furnace.
Vaporizer 2 is formed primarily of water wall 4, and water wall 4 is in shell and tube or coil tube type, and inwall scribbles Sic refractory materials.Water wall 4 is one section or is divided into several sections, de-oxygenised water in water wall 4 each section all take the flow pattern hoisted by lower, the water outlet of each section of water wall 4 is positioned at the top of same section of water wall 4, the water wall water inlet outside of each section connects water equipment, the water wall water outlet of each section is connected with outside water equipment water-in, and the de-oxygenised water in water wall 4 recycles.The determination of the hop count of water wall 4 is determined according to practical situation.Water wall 4 adopt this upper hypomere successively adverse current cooling mode, the principle that can not only adverse current be utilized greatly to cool absorbs heat, and make the change of the thermograde on top be greater than the thermograde change of bottom, well solve the problem that top water wall more easily leaks, meanwhile, multistage water wall structure is also conducive to installation and the maintenance of water wall.In addition, cinder notch section (vaporizer cinder notch 9) does not arrange water wall 4, adds and changes relative a lot little with the bottom water wall thermograde that cinder notch section is closed on, and slag remains in liquid scope close to cinder notch region, can realize deslagging smoothly, probability slag occurring stifled reduces greatly.
Described water wall 4 is connected with vaporizer cinder notch 9 takes socket joint form, and vaporizer flange radius is suitable with water wall 4 radius, is easy to install and maintenance.
As shown in Figure 2, described nozzle 1 is multi-channel structure, and inside is provided with fuel gas passageway 101, combustion-supporting gas channel 102, fuel channel 103, high-energy firing gun 105 and fire defector apparatus 104; The material sense of rotation of ejection in N number of nozzle 1 is concentrated to vapourizing furnace central axis; The fuel of nozzle 1 can select the one in coal water slurry or dry pulverized coal.Ignition burner and technique set of nozzles are combined together by this nozzle, can realize the function of lighting a fire, feeding intake and running.High-energy firing gun 105 adopts " high-energy firing gun " that provide in Chinese patent CN2009100215439.Described chilling ring 5 adopts " chilling ring of gasifying furnace " that provide in Chinese patent CN200920025468.
As shown in Figure 3, described vaporizer 2 is formed primarily of water wall 4, and water wall 4 is in shell and tube or coil tube type, and inwall scribbles Sic refractory materials.Water wall 4 is one section or is divided into several sections, de-oxygenised water in water wall 4 each section all take the flow pattern hoisted by lower, the de-oxygenised water in water wall 4 recycles.Water wall 4 is connected with vaporizer cinder notch 9 takes socket joint form, is easy to install and maintenance.
As shown in Figure 6; downtake protector 7 is hollow structure; inside arranges flow deflector 701; flow deflector is snakelike spiraling up around downtake; be highly 1m; be fixed on the downtake outer wall of distance cinder notch 0.3 ~ 0.7m, downtake protector water inlet 702 is connected with outside water equipment, and downtake protector water outlet 703 is connected with the cooling fluid transfer lime 206 of chilling ring 2.
As shown in Figure 7, round trip overflow wet cyclone 10 is divided into interior journey spinning liquid plate 1001, outer journey spinning liquid plate 1002 and Overflow Cone 1003, outer journey spinning liquid plate 1002 number of blade is 2 times of interior journey spinning liquid plate 1001, the blade elevation angle is 20 ~ 50 °, diameter is 1.36 times of interior journey spinning liquid plate 1001, and outer journey spinning liquid plate 1002 height of cover cylinder is 0.5 times of interior journey spinning liquid plate 1001.Overflow Cone 1003 number of blade is identical with interior journey spinning liquid plate 1001, blade guide angle 30 ~ 60 °, overflow cone angle 2 θ=50 ~ 70 °.
As shown in Figure 9, described bouffancy plate 8 comprises excircle board 801, interior plectane 802, covers pressing plate 803 and middle layer 804, be connected with between excircle board 801, interior plectane 802 and multiplely cover pressing plate 803, adjacent covers the middle layer 804 being connected with between pressing plate 803 and being parallel to each other, and bouffancy plate 8 is fixed between downtake 7 outer wall and housing 6.
Embodiment
A kiloton gasification installation, top arranges 4 nozzles 1, and flange center arranges a central nozzle, its excess-three nozzle 1 be evenly arranged in flange center be the center of circle circle on, the sense of rotation of the internal gas flow of three nozzles 1 is different, and general direction is gathered to vapourizing furnace axis direction; Two-part structure taked by water wall 4, and the de-oxygenised water temperature entering water wall 4 is 200 DEG C, and the de-oxygenised water temperature going out water wall 4 is 240 DEG C; Vaporizer 2 bottom arranges a high about 8690mm, and internal diameter is about the efficient chilling device of 3000mm, and Quench space is about 61.4m3.Enter synthetic gas and the ash temperature about about 1500 DEG C of efficient chilling device 3, speed is about 3.6m/s, annular space gas speed about 0.3m/s, synthetic gas and lime-ash enter water-bath washing, the water surface is bloated by the mode of bubbling, carry out swelling of bubble via foam filter, bouffancy plate 8 and two-layer round trip wet cyclone 10 and vanish, the process of gas-liquid separation and foam removal ash disposal, go out the crude synthesis gas temperature about about 200 DEG C of efficient chilling device, the detersive efficiency of ash, more than 78%, processes crude synthesis gas amount 8.75 ten thousand Nm
3/ h, the synthesis tolerance entering rear system is 70,000 Nm
3/ h, ash content is less than every cubic metre of below 2mg.
Downtake protector 11 is fixed on from downtake 7 outer wall of the long 0.3 ~ 0.7m of vaporizer cinder notch 9.In the present embodiment, the discharge entering shock chamber's cooling fluid transfer lime 506 is about 170m
3, the discharge entering downtake protector 11 water-in is about 30m
3, the water coolant economic benefits and social benefits protection downtake of chilling ring 5 and downtake protector 11, relative to only arranging chilling ring cooling water flow 200 m
3chilling device, chill effect is good, downtake life.
Claims (7)
1. the efficient quenching gasification device of multistage water wall, comprise nozzle (1), vaporizer (2) and efficient chilling device (3), it is characterized in that: vaporizer (2) is arranged on the top of efficient chilling device (3), one or more nozzle (1) is arranged in vaporizer (2) top flange;
Vaporizer (2) is made up of water wall (4), water wall (4) is in shell and tube or around tubular type, water wall (4) is one or more snippets, and the water outlet of each section of water wall (4) is positioned at the top of same section of water wall (4), and water wall (4) outside connects water equipment.
2. according to the efficient quenching gasification device of multistage water wall according to claim 1, it is characterized in that: vaporizer (2) diameter is identical with efficient chilling device (3) diameter.
3. according to the efficient quenching gasification device of multistage water wall according to claim 1, it is characterized in that: when described nozzle (1) is one, nozzle (1) is arranged on flange center; When nozzle (1) is two, nozzle (1) and vaporizer (2) axis are positioned at same plane, and nozzle (1) is centroclinal towards vaporizer (2), and nozzle (1) and vaporizer (2) axis are 10 ~ 70 ° of angles; When nozzle (1) is three, it is on the circle in the center of circle that nozzle (1) is evenly arranged on vaporizer (2) flange center, and nozzle (1) is centroclinal towards vaporizer (2), is 20 ~ 60 ° of angles with vaporizer (2) axis; When the number of nozzle (1) is four or more, a nozzle (1) is arranged on center, it is on the circle in the center of circle that other nozzles are distributed on vaporizer (2) flange center, and nozzle (1) is centroclinal towards vaporizer (2), is 10 ~ 60 ° of angles with vaporizer (2) central axis.
4. according to the efficient quenching gasification device of multistage water wall according to claim 1, it is characterized in that: at downtake (7) outward, the below of chilling ring (5) is provided with downtake protector (11).
5. according to the efficient quenching gasification device of multistage water wall according to claim 1, it is characterized in that: described water wall (4) is connected with vaporizer cinder notch (9) takes socket joint form.
6. according to the efficient quenching gasification device of multistage water wall according to claim 1, it is characterized in that: described vaporizer (2) does not arrange water wall (4) in cinder notch section.
7. according to the efficient quenching gasification device of multistage water wall according to claim 1, it is characterized in that: described nozzle (1) is multi-channel structure, inside is provided with fuel gas passageway (101), combustion-supporting gas channel (102), fuel channel (103), carries high-energy firing gun (105) and fire defector apparatus (104).
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| CN201510032768.1A CN104560212A (en) | 2015-01-23 | 2015-01-23 | Multi-section water-cooling wall high-efficiency chilling gasification device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104962321A (en) * | 2015-06-15 | 2015-10-07 | 航天长征化学工程股份有限公司 | Water-cooled wall of gasification furnace |
| CN105542866A (en) * | 2016-01-25 | 2016-05-04 | 新疆心连心能源化工有限公司 | Pulverized gas technology |
| CN109810730A (en) * | 2019-03-01 | 2019-05-28 | 中国东方电气集团有限公司 | A kind of water-coal-slurry water cooled wall gasification furnace of long-period stable operation |
| CN110724567A (en) * | 2018-07-16 | 2020-01-24 | 河南骏化发展股份有限公司 | Water cooling system for gasification furnace and water cooling process thereof |
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| CN104962321A (en) * | 2015-06-15 | 2015-10-07 | 航天长征化学工程股份有限公司 | Water-cooled wall of gasification furnace |
| CN104962321B (en) * | 2015-06-15 | 2019-08-20 | 航天长征化学工程股份有限公司 | Water-cooled wall of gasification furnace |
| CN105542866A (en) * | 2016-01-25 | 2016-05-04 | 新疆心连心能源化工有限公司 | Pulverized gas technology |
| CN110724567A (en) * | 2018-07-16 | 2020-01-24 | 河南骏化发展股份有限公司 | Water cooling system for gasification furnace and water cooling process thereof |
| CN109810730A (en) * | 2019-03-01 | 2019-05-28 | 中国东方电气集团有限公司 | A kind of water-coal-slurry water cooled wall gasification furnace of long-period stable operation |
| CN109810730B (en) * | 2019-03-01 | 2019-12-13 | 中国东方电气集团有限公司 | Long-period stable operation water-coal-slurry water-cooled wall gasification furnace |
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