CN201850256U - Process burner and system for gasifying water coal slurry - Google Patents
Process burner and system for gasifying water coal slurry Download PDFInfo
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- CN201850256U CN201850256U CN201020569394XU CN201020569394U CN201850256U CN 201850256 U CN201850256 U CN 201850256U CN 201020569394X U CN201020569394X U CN 201020569394XU CN 201020569394 U CN201020569394 U CN 201020569394U CN 201850256 U CN201850256 U CN 201850256U
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Abstract
The utility model provides a process burner and a system for gasifying water coal slurry. The process burner comprises at least two oxygen passages, at least two water coal slurry passages and a cylindrical shell, wherein each oxygen passage comprises an oxygen passage entrance and an oxygen passage outlet; each water coal slurry or each water coal slurry/carbon dioxide mixed atomization liquid passage comprises a water coal slurry/carbon dioxide mixed atomization liquid passage entrance and an outlet; and the cylindrical shell is provided with a cooling water entrance and a cooling water outlet, and the process burner is characterized in that: at least two oxygen passages and at least two water coal slurry or water coal slurry/carbon dioxide mixed atomization liquid passages are arranged alternatively and are uniformly distributed inside the cylindrical shell, and cooling water is arranged inside the cylindrical shell. The process burner can more efficiently improve the mixing of the water coal slurry and the carbon dioxide, so the gasification efficiency is improved. All parts of a spraying pipe and the shell of the burner are contacted with the cooling water, so the spraying pipe and the burner shell can be high efficiently cooled, and the damage of the high temperature thermal abrasion on the burner can be reduced.
Description
Technical field
The utility model relates to the gasification field, in particular to a kind of process burner and system that is used for coal water slurry gasification.
Background technology
Coal is a kind of important energy, and for a long time, coal in use is accompanied by serious environmental and pollutes.In recent years, be that the clean coal technology of purpose is paid attention to by people day by day to reduce disposal of pollutants and to improve utilising efficiency; Coal Gasification Technology is as wherein processing of a kind of coal and transformation technology, is considered to one of clean coal technology of high-efficiency cleaning the most.Modern Coal Gasification Technology, especially high pressure, large vol entrained flow bed gasification technology are in industrial acquisition widespread use, and Texaco's water coal slurry pressure gasification technology is wherein the most typically representative.The introduction of how tame producer has been arranged and utilized Texaco's technology to carry out coal water slurry gasification in China, this technology has that environmental pollution is little, the level of automation advantages of higher, but this technical matters has some ubiquitous problems, and these problems affect the normal operation of Texaco's device in varying degrees; Texaco (Texaco) process burner is a most important parts in the texaco gasification device, be the key that can vapourizing furnace High-efficient Production steady in a long-term, and the atomizing effect and the work-ing life of how to improve process burner are one of most important problems in Texaco's water coal slurry pressure gasification technology.
Texaco (Texaco) vapourizing furnace is a raw material with the coal water slurry, adopts high-purity O
2Be vaporized chemical, belong to the gasification of supercharging fluid injected bed.Texaco gasifier mainly is made up of burner, combustion chamber, shock chamber or waste heat boiler; Burner is the most critical parts of Texaco gasifier, is the designs of three runners.Coal water slurry between central oxygen and outside walk center-aisle between the epoxy; Vapourizing furnace top is the combustion chamber, is the gasification zone, has lining of fire brick; The vapourizing furnace bottom is the shock chamber, is the coal gas cooling zone.Feed coal, water and additive are added in the rod mill simultaneously, and grinding to form can be for the coal water slurry of pump delivery, and wherein the water coal slurry concentration massfraction is controlled between the 58-65%, and preferably water coal-water fluid concentration massfraction is controlled near 60～63%.Coal water slurry is broken under the effect of high speed oxygen air-flow by the top burner, atomizing sprays into vapourizing furnace.The cracking burning of preheating, moisture evaporation, coal carbonization, volatile matter and a series of complex physicochemical process such as gasification of charcoal are experienced in the coal water slurry of atomizing and oxygen are subjected to refractory liner in stove hyperthermia radiation effect rapidly, generate with H at last
2+ CO is main synthetic gas.
Process burner efficiently moves important influence to the long period of Texaco gasifier.Industry at present is big produces that main what use is three runner burners of exterior mixing, and as shown in Figure 1, technology oxygen is walked outermost passage and interior passageway, and coal water slurry walks center-aisle, between two strands of oxygen jets; Technology oxygen sprays the impact coal water slurry at a high speed, thereby makes the broken atomizing of coal water slurry, becomes the suitable little water droplet of incendiary coal slurry.The atomizing effect of the process burner of this structure makes moderate progress with respect to the burner of two runners, but owing to be the restriction of the jet and the vapourizing furnace aspect ratio itself of single fire mouth, in the stove turbulent flow ratio of mixture a little less than, atomizing angle is less, insufficient and its skewness of coal slurry small-particle atomizing, make the local area that the oxygen surplus take place, generate CO
2, and the effective gas (H that has generated
2+ CO) secondary reaction takes place easily, cause effective gas output to descend, and the very few place of oxygen form the unburn district, just have some coal slurry particles and fail gasification and just fall in the shock chamber.And mode of jet causes the coal slurry particle residence time too short, even part coal slurry small-particle ejects the combustion gasification that also is not able to do in time behind the combustion chamber, thereby makes the gasification efficiency of Texaco's technology and efficiency of carbon conversion low with respect to Shell and four burner opposed type vapourizing furnaces.The length of flame is not easy to hold, and is unfavorable to refractory brick when long, make refractory brick local heating, and refractory brick can be subjected to seriously washing away of high speed water coal slurry.Simultaneously, and be subjected to the coal slurry particulate and wash away at a high speed, so burner often is out of shape in the short period of time and weares and teares, even burnt because the process burner head is in the hot environment.
United States Patent (USP) U.S.Pat 3705108,3743606 discloses a kind of coal water slurry gasification burner respectively, and such burner has advantage simple in structure, easy to maintenance, but finds that there is following shortcoming in such burner in industrial actual the use:
(1) jet length of " flame " is longer, causes the interior refractory brick of vapourizing furnace seriously to ablate, and has shortened the work-ing life of Gas-making Furnace;
(2) vaporized chemical and fuel mix are relatively poor, gasification imperfection, effectively gas (CO+H
2) content of composition is lower, and CO
2Content is then higher, and the transformation efficiency of carbon only is 96%;
(3) the burner abrasion is serious, and the life-span only is 2～3 months.
Chinese patent literature 95111750.5 has proposed a kind of three-way channel combined water coal slurry gasification burner that has swirler, this burner mainly is made up of central oxygen jet pipe, interior ring coal water slurry jet pipe, outer epoxy jet pipe and cooling water nozzle, and is provided with swirler respectively in the shower nozzle inner and outer rings shower nozzle of center.This burner has shortened the length of combustion flame effectively, reduced the ablation of flame to refractory brick, has promoted mixing and atomizing of coal water slurry and oxygen simultaneously, and gasification efficiency increases.But (1) coal slurry is a mode of jet, fails gasification, and combustion and just spurts in the shock chamber so still also have some coal slurry particles, so gasification efficiency also has the space of improving; (2) burner is still improved limited by the bad situation of ablating of heat simultaneously; (3) cooling water coil also is easier to be burnt, when serious even cause parking; (4) the high speed water coal slurry can cause burner to be subjected to erosive wear to the direct frontal impact of burner for a long time.
Therefore, in order to overcome above-mentioned defective, a kind of process burner of the novel coal slurry gasifier that is applicable to coal water slurry gasification need be provided and comprise the gasified boiler system of this process burner.
The utility model content
The purpose of this utility model is that a kind of novel process burner that is used for coal water slurry gasification and the gasified boiler system that comprises this process burner are provided on the basis of existing technology, with process burner and the existing technical problem of gasified boiler system that solves the present coal slurry gasifier that is used for coal water slurry gasification.
For this reason, an aspect of the present utility model provides a kind of novel process burner that is used for coal water slurry gasification, comprising:
At least two oxygen channels, each described at least two oxygen channel comprise oxygen channel inlet and oxygen channel outlet;
At least two coal water slurry passages, each described coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway comprise coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway inlet and coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway outlet;
Cylindrical outside shell has cooling water inlet and cooling water outlet;
It is characterized in that described at least two oxygen channels and described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway are staggered and are uniformly distributed in the described cylindrical outside shell, is water coolant in the wherein said cylindrical outside shell.
Preferably, the cooling water inlet of described cylindrical outside shell is lower than the cooling water outlet of described cylindrical outside shell, and described cylindrical outside shell is made by the heat resistant and wear resistant corrosion resistant material.
Preferably, the cooling water inlet of described cylindrical outside shell is arranged at a side of described cylindrical outside shell, and the cooling water outlet of described cylindrical outside shell is arranged at the opposite side away from described cooling water inlet.
Preferably, the outlet at bottom place of described cylindrical outside shell is arranged to have the form of reducing.
Preferably, described at least two oxygen channels have at least four oxygen channels, described at least two coal water slurry passages have at least five coal water slurry passages, perhaps described at least two oxygen channels have at least five oxygen channels, described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway has at least four coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway, and described at least two oxygen channels and described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway are the array cross-distribution.
Preferably, the inlet of described cylindrical outside shell is arranged at described cylindrical outside shell bottom and locates near the bottom near the bottom of described cylindrical outside shell, and the outlet of described cylindrical outside shell is arranged at the top place of described cylindrical outside shell top near described cylindrical outside shell.
Preferably, described at least two oxygen channels and described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway are the rectangular staggered uniform distribution of n * m, and wherein n and m can be identical or different, are respectively the integer more than or equal to 2.
Preferably, described at least two oxygen channels and described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway are the rectangular staggered uniform distribution of n * n, and wherein n is the integer more than or equal to 2.
More preferably, described at least two oxygen channels are 3 * 3,4 * 4,5 * 5,6 * 6,7 * 7,8 * 8,9 * 9,10 * 10,3 * 4,4 * 5,5 * 6,6 * 7,7 * 8,8 * 9,9 * 10 rectangular staggered uniform distribution with described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway
More preferably, described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway and described at least two oxygen channels are 3 * 3,4 * 4,5 * 5,6 * 6,7 * 7,8 * 8,9 * 9,10 * 10,3 * 4,4 * 5,5 * 6,6 * 7,7 * 8,8 * 9,9 * 10 rectangular staggered uniform distribution.
Preferably, each of described at least two oxygen channels links to each other with the oxygen inlet manifold respectively, and each of described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway links to each other with coal water slurry or coal water slurry/carbon dioxide mix atomized liquid inlet manifold respectively.
Preferably, each of described at least two oxygen channels is respectively arranged with the oxygen swirler, each of described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway is respectively arranged with coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler, and described oxygen swirler is arranged at the inside, exit of each described at least two oxygen channel respectively, and described coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler is arranged at the inside, exit of each described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway respectively.
Preferably, each of described at least two oxygen channels is respectively arranged with the oxygen swirler, and described oxygen swirler is arranged at the inside, exit of each described at least two oxygen channel respectively.
Preferably, each of described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway is respectively arranged with coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler, and described coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler are arranged at the inside, exit of each described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway respectively.
Preferably, the center of the coal water slurry of this process burner or coal water slurry/carbon dioxide mix atomized liquid swirler is an eddy flow section dead center, and the periphery of coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler matches with the outer wall of coal water slurry or coal water slurry/carbon dioxide mix atomized liquid jet pipe head.
Preferably, the center of the oxygen swirler of this process burner is an eddy flow section dead center, and the periphery of oxygen swirler matches with the outer wall of oxygen spray pipe head.
More preferably, the periphery of the coal water slurry of this process burner or coal water slurry/carbon dioxide mix atomized liquid swirler can be connected with removably with the outer wall of coal water slurry or coal water slurry/carbon dioxide mix atomized liquid jet pipe head, as the spiral connection or by the tumbler pin clamping.
More preferably, the periphery of the oxygen swirler of this process burner is connected with removably with the outer wall of oxygen spray pipe head, as the spiral connection or by the tumbler pin clamping.
Preferably, the oxygen swirler of this process burner and coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler is constructed such that oxygen and coal water slurry or coal water slurry/carbon dioxide mix atomized liquid penetrate in the tangential direction of this oxygen swirler and this coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler respectively.
Preferably, the oxygen swirler of this process burner is constructed such that oxygen penetrates in the tangential direction of this oxygen swirler respectively.
Preferably, the coal water slurry of this process burner or coal water slurry/carbon dioxide mix atomized liquid swirler is constructed such that coal water slurry or coal water slurry/carbon dioxide mix atomized liquid penetrate in the tangential direction of this coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler respectively.
Of the present utility modelly provide a kind of coal water slurry gasification furnace system that is applicable to coal water slurry gasification on the other hand, it is characterized in that comprising:
The process burner of coal water slurry gasification described in the utility model, and
Vapourizing furnace.
The advantage of the process burner of coal water slurry gasification of the present utility model is, the shell of this burner is made by the heat resistant and wear resistant corrosion resistant material, it is evenly distributed that oxygen channel that it is inner and coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway is array (as honeycomb), liquid fuel (comprising coal water slurry or coal water slurry/carbon dioxide mix atomized liquid) jet pipe and vaporized chemical (comprising oxygen) jet pipe are evenly staggered, the coal water slurry of feasible ejection or coal water slurry/carbon dioxide mix atomized liquid and oxygen distribute more even in vapourizing furnace, can obtain more effectively gas and higher gasification efficiency, thereby improve the coal water slurry gasification yield.
The process burner of coal water slurry gasification of the present utility model has been avoided coal slurry small-particle and oxygen skewness in vapourizing furnace thus, makes regional area generation oxygen surplus to generate CO
2, and be easy to make the effective gas (H that has generated
2+ CO) secondary reaction takes place, cause effective gas output to descend, and, form the unburn district in the very few zone of oxygen, cause that some coal slurry particles fail to gasify just to fall the problem in the shock chamber.
Simultaneously, water coolant from a side of the shell made by the heat resistant and wear resistant corrosion resistant material pass between jet pipe the gap and from it away from opposite side flow out, all jet pipes (comprising coal water slurry or coal water slurry/carbon dioxide mix atomized liquid jet pipe and vaporized chemical (comprising oxygen) jet pipe) all contact with water coolant everywhere with the shell of burner like this, along with cooling-water flow, jet pipe and burner shell obtain cooling efficiently, thereby reduce the damage of high temperature heat etching to burner.
The shell of this burner is made by the heat resistant and wear resistant corrosion resistant material, has prolonged the work-ing life of burner thus.
The cooling water inlet is arranged at the bottom of the shell of being made by the heat resistant and wear resistant corrosion resistant material; and be arranged at the top of the shell of making by the heat resistant and wear resistant corrosion resistant material near the place, top away from the cooling water outlet of the opposite side setting of cooling water inlet; make the easiliest when temperature of cooling water is also very low to be obtained water quench at first, make the burner head obtain more effective protection by the elevated temperature heat burner head of hindering that deteriorates.
Description of drawings
Fig. 1 is the cross sectional view according to an embodiment of the novel process nozzle that is used for coal water slurry gasification of the present utility model;
Fig. 2 is the sectional side elevation according to technology nozzle of the present utility model middle and lower part;
Fig. 3 is the sectional side elevation according to technology nozzle of the present utility model middle part;
Fig. 4 is the sectional side elevation that is provided with the technology nozzle middle and lower part of swirler according to of the present utility model;
Fig. 5 a is the vertical view of swirler, and Fig. 5 b is the front view of swirler section;
Fig. 6 is the synoptic diagram that is provided with the coal water slurry gasification furnace system of technology nozzle of the present utility model.
Embodiment
Embodiment of the present utility model below is provided.Those skilled in the art should understand that wherein embodiment only is for illustrative purposes, should not be regarded as limiting by any way scope of the present utility model defined by the claims.
An embodiment of the present utility model provides a kind of novel process burner that is used for coal water slurry gasification 10, comprising:
At least two oxygen channels 110, each these at least two oxygen channel comprise oxygen channel inlet 112 and oxygen channel outlet 115;
At least two coal water slurry passages 120, each this coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway comprise coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway inlet 122 and coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway outlet 125;
Cylindrical outside shell 150 has cooling water inlet 162 and cooling water outlet 165;
It is characterized in that these at least two oxygen channels 110 are staggered with these two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120 and are uniformly distributed in this cylindrical outside shell 150 at least, is water coolant 160 in this cylindrical outside shell 150 wherein.
In a preferred embodiment, the cooling water inlet 162 of the cylindrical outside shell 150 of this process burner 10 is lower than the cooling water outlet 165 of this cylindrical outside shell 150, and this cylindrical outside shell 150 is made by the heat resistant and wear resistant corrosion resistant material.
In a preferred embodiment, the cooling water inlet 162 of the cylindrical outside shell 150 of this process burner 10 is arranged at a side of this cylindrical outside shell, and the cooling water outlet 165 of this cylindrical outside shell 150 is arranged at the opposite side away from this cooling water inlet 162.
In a preferred embodiment, the form of reducing is arranged to have in 155 exits, bottom of the cylindrical outside shell 150 of this process burner 10.
In a preferred embodiment, at least two oxygen channels 110 of this process burner 10 have at least four oxygen channels 110, these at least two coal water slurry passages 120 have at least five coal water slurry passages 120, and these at least two oxygen channels 110 are the array cross-distribution with these at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120.
In another preferred embodiment, at least two oxygen channels 110 of this process burner 10 have at least five oxygen channels 110, these at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120 has at least four coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120, and these at least two oxygen channels 110 are the array cross-distribution with these at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120.
In a preferred embodiment, the inlet 162 of the cylindrical outside shell 150 of this process burner 10 is arranged at the bottom of close this cylindrical outside shell 150 in these cylindrical outside shell 150 bottoms near 155 places, bottom, and the outlet 165 of this cylindrical outside shell 150 is arranged at the top place of these cylindrical outside shell 150 tops near this cylindrical outside shell 150.
In a preferred embodiment, at least two oxygen channels 110 and described at least two coal water slurry or the coal water slurry/carbon dioxide mix atomization fluid passageway 120 of this process burner 10 is the rectangular staggered uniform distribution of n * m, wherein n and m can be identical or different, are respectively the integer more than or equal to 2.
In a preferred embodiment, at least two oxygen channels 110 and these at least two coal water slurry or the coal water slurry/carbon dioxide mix atomization fluid passageway 120 of this process burner 10 is the rectangular staggered uniform distribution of n * n, and wherein n is the integer more than or equal to 2.
In a more preferred embodiment, at least two oxygen channels 110 and these at least two coal water slurry or the coal water slurry/carbon dioxide mix atomization fluid passageway 120 of this process burner 10 are 3 * 3,4 * 4,5 * 5,6 * 6,7 * 7,8 * 8,9 * 9,10 * 10,3 * 4,4 * 5,5 * 6,6 * 7,7 * 8,8 * 9,9 * 10 rectangular staggered uniform distribution.
In another more preferred embodiment, at least two coal water slurry of this process burner 10 or coal water slurry/carbon dioxide mix atomization fluid passageway 120 is 3 * 3,4 * 4,5 * 5,6 * 6,7 * 7,8 * 8,9 * 9,10 * 10,3 * 4,4 * 5,5 * 6,6 * 7,7 * 8,8 * 9,9 * 10 rectangular staggered uniform distribution with these at least two oxygen channels 110.
In a preferred embodiment, each of at least two oxygen channels 110 of this process burner 10 links to each other with the oxygen inlet manifold respectively, and each of these at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120 links to each other with coal water slurry or coal water slurry/carbon dioxide mix atomized liquid inlet manifold respectively.
In a preferred embodiment, each of at least two oxygen channels 110 of this process burner 10 is respectively arranged with oxygen swirler 118, each of these at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120 is respectively arranged with coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128, and this oxygen swirler 118 is arranged at the inside, outlet 115 place of each these at least two oxygen channel 110 respectively, and this coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128 is arranged at the inside, outlet 125 place of each these at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120 respectively.
In another preferred embodiment, each of at least two oxygen channels 110 of this process burner 10 is respectively arranged with oxygen swirler 118, and this oxygen swirler 118 is arranged at the inside, outlet 115 place of each these at least two oxygen channel 110 respectively.
In another preferred embodiment, at least two coal water slurry of this process burner 10 or each of coal water slurry/carbon dioxide mix atomization fluid passageway 120 are respectively arranged with coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128, and this coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128 is arranged at the inside, outlet 125 place of each these at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120 respectively.
In a preferred embodiment, the center of the coal water slurry of this process burner 10 or coal water slurry/carbon dioxide mix atomized liquid swirler 128 is eddy flow section dead center 128-8, and the periphery 128-5 of coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128 matches with the outer wall of coal water slurry or coal water slurry/carbon dioxide mix atomized liquid jet pipe head.
In a preferred embodiment, the center of the oxygen swirler 118 of this process burner 10 is eddy flow section dead center 118-8, and the periphery 118-5 of oxygen swirler 118 matches with the outer wall of oxygen spray pipe head.
In a preferred embodiment, the periphery 128-5 of the coal water slurry of this process burner 10 or coal water slurry/carbon dioxide mix atomized liquid swirler 128 can be connected with removably with the outer wall of coal water slurry or coal water slurry/carbon dioxide mix atomized liquid jet pipe head, as the spiral connection or by the tumbler pin clamping.
In a preferred embodiment, the periphery 118-5 of the oxygen swirler 118 of this process burner 10 is connected with removably with the outer wall of oxygen spray pipe head, as the spiral connection or by the tumbler pin clamping.
In a preferred embodiment, the oxygen swirler 118 of this process burner 10 and coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128 is constructed such that oxygen and coal water slurry or coal water slurry/carbon dioxide mix atomized liquid penetrate in the tangential direction of this oxygen swirler 118 and this coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128 respectively.
In another preferred embodiment, the oxygen swirler 118 of this process burner 10 is constructed such that oxygen penetrates in the tangential direction of this oxygen swirler 118 respectively.
In another preferred embodiment, the coal water slurry of this process burner 10 or coal water slurry/carbon dioxide mix atomized liquid swirler 128 is constructed such that coal water slurry or coal water slurry/carbon dioxide mix atomized liquid penetrate in the tangential direction of this coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128 respectively.
Another embodiment of the present utility model provides a kind of coal water slurry gasification furnace system that is applicable to coal water slurry gasification, it is characterized in that comprising:
The process burner 10 of above-mentioned coal water slurry gasification, and
Vapourizing furnace 1.
Below in conjunction with the drawings and specific embodiments, the novel process burner that is used for coal water slurry gasification that the utility model is provided is described in detail as follows, it only is for the utility model being given further instruction, should be appreciated that therefore it does not limit interest field of the present utility model.
Embodiment 1
Fig. 1 shows the cross sectional view of the novel process nozzle that is used for coal water slurry gasification of present embodiment, and Fig. 2 is the sectional side elevation of the technology nozzle middle and lower part of present embodiment, and Fig. 3 is the sectional side elevation according to technology nozzle of the present utility model middle part.
As Fig. 1～illustrated in fig. 3, the process burner that is used for coal water slurry gasification 10 of present embodiment comprises:
18 oxygen channels 110, each oxygen channel comprise oxygen channel inlet 112 and oxygen channel outlet 115;
18 coal water slurry passages 120, each this coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway comprise coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway inlet 122 and coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway outlet 125;
Cylindrical outside shell 150 has cooling water inlet 162 and cooling water outlet 165;
18 oxygen channels 110 and 18 coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120 are staggered and are uniformly distributed in this cylindrical outside shell 150, particularly, in this cylindrical outside shell 150 is water coolant 160, and oxygen channel 110 and coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120 be 6 * 6 (be n=6, rectangular staggered uniform distribution m=6).
Wherein, the cooling water inlet 162 of the cylindrical outside shell 150 of process burner 10 is arranged at a side of this cylindrical outside shell, and the cooling water outlet 165 of cylindrical outside shell 150 is arranged at the opposite side away from cooling water inlet 162.
Exemplary showing is 6 * 6 rectangular staggered equally distributed oxygen channel 110 and coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120 in Fig. 1～Fig. 3.Those skilled in the art should know, oxygen channel 110 wherein and coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120 can be adjusted as required and in addition, oxygen channel 110 and coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120 also can not exclusively be the rectangular staggered uniform distribution of n * m, can increase oxygen channel 110 and the coal water slurry or the coal water slurry/carbon dioxide mix atomization fluid passageway 120 of proper amt near the circumference place of cylindrical outside shell 150, and make the oxygen channel 110 of increase and coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120 (not shown) that also is interspersed.
The advantage of the process burner that is used for coal water slurry gasification of present embodiment is, the oxygen channel of the enclosure of this burner and coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway is array (as honeycomb) and evenly is staggered, thereby liquid fuel (comprising coal water slurry or coal water slurry/carbon dioxide mix atomized liquid) jet pipe and vaporized chemical (comprising oxygen) jet pipe are evenly staggered, the coal water slurry of feasible ejection or coal water slurry/carbon dioxide mix atomized liquid and oxygen distribute more even in vapourizing furnace, can obtain more effectively gas and higher gasification efficiency, thereby improve the coal water slurry gasification yield.
Simultaneously, because the cooling water inlet is arranged at a side of shell, and cooling water outlet is arranged at the opposite side away from the cooling water inlet, make water coolant from pass by a side of shell between jet pipe the gap and from it away from opposite side flow out, all jet pipes (comprising coal water slurry or coal water slurry/carbon dioxide mix atomized liquid jet pipe and vaporized chemical (comprising oxygen) jet pipe) all contact with water coolant everywhere with the shell of burner like this, along with cooling-water flow, jet pipe and burner shell obtain cooling efficiently, thereby reduce the damage of high temperature heat etching to burner
Thus, the process burner of the coal water slurry gasification of present embodiment has been avoided coal slurry small-particle and oxygen skewness in vapourizing furnace, makes regional area generation oxygen surplus to generate CO
2, and be easy to make the effective gas (H that has generated
2+ CO) secondary reaction takes place, cause effective gas output to descend, and, form the unburn district in the very few zone of oxygen, cause that some coal slurry particles fail to gasify just to fall the problem in the shock chamber.
Embodiment 2
Still as Fig. 1～shown in Figure 3, the cooling water inlet 162 of the cylindrical outside shell 150 of this process burner 10 is lower than the cooling water outlet 165 of this cylindrical outside shell 150, and this cylindrical outside shell 150 is made by the heat resistant and wear resistant corrosion resistant material.It adopts the heat resistant and wear resistant corrosion resistant material, as the wear-resistant ceramic layer, or adopts materials such as Hastenoy C-22, UMCo-50 to make, and makes process burner of the present utility model more durable in use.
Especially, the cooling water inlet is arranged at the bottom of the shell of being made by the heat resistant and wear resistant corrosion resistant material, and is arranged at the top of the shell of being made by the heat resistant and wear resistant corrosion resistant material near place, top (not shown) away from the cooling water outlet of the opposite side setting of cooling water inlet.
As Fig. 2 and shown in Figure 4, the form of reducing can be arranged to have in 155 exits, bottom of the cylindrical outside shell 150 of this process burner 10.
Because the shell of this process burner is made by the heat resistant and wear resistant corrosion resistant material, has prolonged the work-ing life of burner thus.
Simultaneously; because the cooling water inlet is arranged at the bottom of the shell of being made by the heat resistant and wear resistant corrosion resistant material; and be arranged at the top of the shell of making by the heat resistant and wear resistant corrosion resistant material near the place, top away from the cooling water outlet of the opposite side setting of cooling water inlet; make the easiliest when temperature of cooling water is also very low to be obtained water quench at first, make the burner head obtain more effective protection by the elevated temperature heat burner head of hindering that deteriorates.
Certainly, the cooling water inlet also can be arranged at the middle and lower part of the shell of being made by the heat resistant and wear resistant corrosion resistant material, and is arranged at the middle and upper part of the shell of being made by the heat resistant and wear resistant corrosion resistant material away from the cooling water outlet of the opposite side setting of cooling water inlet.
Embodiment 3
As shown in Figure 4, the technology nozzle 10 of embodiment 1, each coal water slurry of this process burner 10 or coal water slurry/carbon dioxide mix atomization fluid passageway 120 exports 125 places at it and is provided with coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128 respectively, and each oxygen channel 110 of this process burner 10 exports 115 places at it and is provided with oxygen swirler 118 respectively.
And the oxygen swirler 118 of this process burner 10 and coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128 is constructed such that oxygen and coal water slurry or coal water slurry/carbon dioxide mix atomized liquid penetrate in the tangential direction of this oxygen swirler 118 and this coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128 respectively.
Certainly, also can be only be provided with oxygen swirler 128 respectively at outlet 115 places of each oxygen channel 110 of process burner 10.Perhaps, also can only be provided with coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128 respectively in each coal water slurry of process burner 10 or outlet 125 places of coal water slurry/carbon dioxide mix atomization fluid passageway 120.
Fig. 5 a and 5b show the vertical view of swirler 118,128, and Fig. 5 b is the front view of swirler 118,128 sections.
This swirler 118,128 can be axial screw slot type (referring to Fig. 5 a and 5b), also can be axial rotary vane type.
Be arranged at the swirler 118 of the inside, outlet 115 place of oxygen channel 110, have axial screw groove 118-2 on it, its external diameter 118-5 equates with the internal diameter of the outlet 115 of oxygen channel 110, and cooperation is installed in the outlet 115 of oxygen channel 110; The center of swirler is eddy flow section dead center 118-8.
Wherein, the center of the oxygen swirler 118 of this process burner 10 is eddy flow section dead center 118-8, and the periphery 118-5 of oxygen swirler 118 matches with the spiral ways of connecting with the outer wall of oxygen spray pipe head, so that dismounting.Certainly, the periphery 118-5 of oxygen swirler 118 also can match with other removablies with the outer wall of oxygen spray pipe head, as by mode such as tumbler pin clamping so that the replacing of swirler.
Be arranged at the swirler 128 of outlet 125 inside of coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120, has axial screw groove 128-2 on it, its external diameter 128-5 equates with the internal diameter of the outlet 125 of coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120, and cooperation is installed in the outlet 125 of coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120; The center of swirler is eddy flow section dead center 128-8.
Wherein, the center of the coal water slurry of this process burner 10 or coal water slurry/carbon dioxide mix atomized liquid swirler 128 is eddy flow section dead center 128-8, the periphery 128-5 of coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128 matches with the spiral ways of connecting with the outer wall of coal water slurry or coal water slurry/carbon dioxide mix atomized liquid jet pipe head, so that dismounting.Certainly, the periphery 128-5 of coal water slurry or coal water slurry/carbon dioxide mix atomized liquid swirler 128 also can match with other removablies with the outer wall of coal water slurry or coal water slurry/carbon dioxide mix atomized liquid jet pipe head, as by mode such as tumbler pin clamping so that the replacing of swirler.
Be arranged at the swirler 118 at outlet 115 places of oxygen channel 110, and/or be arranged at swirler 128 in the outlet 125 of coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway 120, further improved the mixed aerosol effect of oxygen, coal water slurry or the coal water slurry/carbon dioxide mix atomized liquid at gasification burner tip 10 spouts 155 places, and further shorten the length of combustion flame, and then further avoid excessive ablation for coal slurry gasifier, prolonged the work-ing life of coal slurry gasifier and process burner thereof.
Fig. 6 is the synoptic diagram that is provided with the coal water slurry gasification furnace system of technology nozzle 10 of the present utility model, has wherein schematically shown the coal slurry gasifier 1 that is provided with cellular coal water slurry process burner 10.
Embodiment 4
The coal water slurry gasification furnace system that is used for the cellular process burner of coal water slurry gasification of the present utility model that has that utilizes among the utility model embodiment 1～3 any one to be used for the process burner 10 of coal water slurry gasification and utilize the utility model to be installed in to constitute on as shown in Figure 6 the coal slurry gasifier 1 is used for the production of synthetic gas, reducing gas or fuel gas.
Utilize the coal water slurry gasification furnace system that is used for the process burner 10 of coal water slurry gasification of the present utility model that has that constitutes on the coal slurry gasifier 1 that is installed among the utility model embodiment 1～3 as shown in Figure 6 to produce synthetic gas, wherein the indexs such as size-grade distribution of employed coal water slurry are as follows:
Size-grade distribution (being the standard sieve percent of pass, mass percent):
8 orders (2380 μ m) 100%,
14 orders (1410 μ m) 98～100%,
40 orders (420 μ m) 90～95%,
200 orders (76 μ m) 60～70%,
325 orders (44 μ m) 25～35%;
Concentration: 58～65wt%;
Viscosity: 700～1000cP (recording) according to the viscosity in aqueous coal slurries determinator;
pH：7～9；
Temperature :≤60 ℃.
The usage quantity of carbonic acid gas and coal water slurry is that the ratio of carbonic acid gas volumetric flow rate and coal water slurry flow changes between 1/200 to 10/50, and visual concrete feelings are adjusted.
Ratio for the usage quantity of oxygen and carbonic acid gas does not have particular requirement, as long as control the ratio of carbonic acid gas volumetric flow rate and coal water slurry flow well, visual concrete feelings are adjusted.
The pressure of carbonic acid gas pipeline changes between oxygen pipeline and coal water slurry line pressure, and the pressure of carbonic acid gas pipeline is good a little less than oxygen pipeline pressure, because the pressure rating difference of different vapourizing furnaces, the visual particular case of its pressure is adjusted.
The production that utilizes the coal water slurry gasification system that is used for the process burner of coal water slurry gasification and comprises it of the present utility model to be used for synthetic gas, reducing gas or fuel gas has advantage as described below:
(1) shell of this burner is made by the heat resistant and wear resistant corrosion resistant material, it is evenly distributed that oxygen channel that it is inner and coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway is array (as honeycomb), liquid fuel (comprising coal water slurry or coal water slurry/carbon dioxide mix atomized liquid) jet pipe and vaporized chemical (comprising oxygen) jet pipe are evenly staggered, the coal water slurry of feasible ejection or coal water slurry/carbon dioxide mix atomized liquid and oxygen distribute more even in vapourizing furnace, can obtain more effectively gas and higher gasification efficiency, thereby improve the coal water slurry gasification yield;
(2) process burner of coal water slurry gasification of the present utility model has been avoided coal slurry small-particle and oxygen skewness in vapourizing furnace thus, makes regional area generation oxygen surplus to generate CO
2, and be easy to make the effective gas (H that has generated
2+ CO) secondary reaction takes place, cause effective gas output to descend, and, form the unburn district in the very few zone of oxygen, cause that some coal slurry particles fail to gasify just to fall the problem in the shock chamber;
(3) simultaneously, water coolant from a side of the shell made by the heat resistant and wear resistant corrosion resistant material pass between jet pipe the gap and from it away from opposite side flow out, all jet pipes (comprising coal water slurry or coal water slurry/carbon dioxide mix atomized liquid jet pipe and vaporized chemical (comprising oxygen) jet pipe) all contact with water coolant everywhere with the shell of burner like this, along with cooling-water flow, jet pipe and burner shell obtain cooling efficiently, thereby reduce the damage of high temperature heat etching to burner;
(4) shell of this burner is made by the heat resistant and wear resistant corrosion resistant material, has prolonged the work-ing life of burner thus.
(5) cooling water inlet is arranged at the bottom of the shell of being made by the heat resistant and wear resistant corrosion resistant material; and be arranged at the top of the shell of making by the heat resistant and wear resistant corrosion resistant material near the place, top away from the cooling water outlet of the opposite side setting of cooling water inlet; make the easiliest when temperature of cooling water is also very low to be obtained water quench at first, make the burner head obtain more effective protection by the elevated temperature heat burner head of hindering that deteriorates.
Although various embodiment of the present utility model is described in context by embodiment, the utility model is not limited in this.Therefore, it is the restriction of the utility model scope that above description should be used as, and scope of the present utility model is limited by appended claim.It will be appreciated by those skilled in the art that under the situation that does not deviate from spirit of the present utility model and can make various changes and change to the utility model, it all will fall within the protection domain of the present utility model.
Claims (10)
1. process burner (10) that is used for coal water slurry gasification comprising:
At least two oxygen channels (110), each described at least two oxygen channel comprise oxygen channel inlet (112) and oxygen channel outlet (115);
At least two coal water slurry passages (120), each described coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway comprise coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway inlet (122) and coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway outlet (125);
Cylindrical outside shell (150) has cooling water inlet (162) and cooling water outlet (165);
It is characterized in that, described at least two oxygen channels (110) are staggered with described two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway (120) and are uniformly distributed in the described cylindrical outside shell (150) at least, are water coolant (160) in the wherein said cylindrical outside shell (150).
2. the process burner (10) that is used for coal water slurry gasification according to claim 1, it is characterized in that the cooling water inlet (162) of described cylindrical outside shell (150) is lower than the cooling water outlet (165) of described cylindrical outside shell (150), and described cylindrical outside shell (150) is made by the heat resistant and wear resistant corrosion resistant material.
3. the process burner (10) that is used for coal water slurry gasification according to claim 1 and 2, it is characterized in that described at least two oxygen channels (110) and described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway (120) are the rectangular staggered uniform distribution of n * m, wherein n and m are identical or different, and are respectively the integer more than or equal to 2.
4. the process burner (10) that is used for coal water slurry gasification according to claim 1 and 2, it is characterized in that the cooling water inlet (162) of described cylindrical outside shell (150) is arranged at a side of described cylindrical outside shell, the cooling water outlet (165) of described cylindrical outside shell (150) is arranged at the opposite side away from described cooling water inlet (162).
5. the process burner (10) that is used for coal water slurry gasification according to claim 1 and 2 is characterized in that the exit, bottom (155) of described cylindrical outside shell (150) is arranged to have the form of reducing.
6. the process burner (10) that is used for coal water slurry gasification according to claim 1 and 2, it is characterized in that described at least two oxygen channels (110) have at least four oxygen channels (110), described at least two coal water slurry passages (120) have at least five coal water slurry passages (120), perhaps described at least two oxygen channels (110) have at least five oxygen channels (110), described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway (120) has at least four coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway (120), and described at least two oxygen channels (110) are the array cross-distribution with described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway (120).
7. the process burner (10) that is used for coal water slurry gasification according to claim 1 and 2, the inlet (162) that it is characterized in that described cylindrical outside shell (150) is arranged at described cylindrical outside shell (150) bottom and locates near bottom (155) near the bottom of described cylindrical outside shell (150), and the outlet (165) of described cylindrical outside shell (150) is arranged at the top place of described cylindrical outside shell (150) top near described cylindrical outside shell (150).
8. the process burner (10) that is used for coal water slurry gasification according to claim 1 and 2, it is characterized in that described at least two oxygen channels (110) and described at least two coal water slurry or coal water slurry/carbon dioxide mix atomization fluid passageway (120) are the rectangular staggered uniform distribution of n * n, wherein n is the integer more than or equal to 2.
9. the process burner for coal water slurry gasification according to claim 1 and 2 (10); Each that it is characterized in that described at least two oxygen channels (110) and/or described at least two water-coal-slurry or water-coal-slurry/carbon dioxide mix atomization fluid passageway (120) is respectively arranged with oxygen cyclone (118) and/or water-coal-slurry or water-coal-slurry/carbon dioxide mix atomized liquid cyclone (128), and the outlet (125) that described oxygen cyclone (118) outlet (115) that is arranged at respectively each described at least two oxygen channel (110) is located and/or described water-coal-slurry or water-coal-slurry/carbon dioxide mix atomized liquid cyclone (128) are arranged at respectively each described at least two water-coal-slurry or water-coal-slurry/carbon dioxide mix atomization fluid passageway (120) is located.
10. coal water slurry gasification furnace system that is applicable to coal water slurry gasification is characterized in that comprising:
The process burner of each described coal water slurry gasification of claim 1～9 (10), and
Vapourizing furnace (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020569394XU CN201850256U (en) | 2010-10-13 | 2010-10-13 | Process burner and system for gasifying water coal slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020569394XU CN201850256U (en) | 2010-10-13 | 2010-10-13 | Process burner and system for gasifying water coal slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201850256U true CN201850256U (en) | 2011-06-01 |
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ID=44092656
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020569394XU Expired - Lifetime CN201850256U (en) | 2010-10-13 | 2010-10-13 | Process burner and system for gasifying water coal slurry |
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|---|---|
| CN (1) | CN201850256U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104498099A (en) * | 2014-12-18 | 2015-04-08 | 华东理工大学 | Gasifier burner and application method thereof, and gasifier containing gasifier burner |
| CN105318320A (en) * | 2015-10-30 | 2016-02-10 | 北京神雾环境能源科技集团股份有限公司 | Semi coke powder and lean gas mixing combustion device, system and method |
| CN107033971A (en) * | 2016-02-04 | 2017-08-11 | 清华大学煤燃烧工程研究中心 | Multichannel combination burner and coal slurry gasifier for coal slurry gasifier |
| CN111676064A (en) * | 2020-06-03 | 2020-09-18 | 清华大学 | Coal gasification burner and gasification furnace thereof |
| CN113999700A (en) * | 2021-09-13 | 2022-02-01 | 郑州大学 | Five-channel process burner |
-
2010
- 2010-10-13 CN CN201020569394XU patent/CN201850256U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104498099A (en) * | 2014-12-18 | 2015-04-08 | 华东理工大学 | Gasifier burner and application method thereof, and gasifier containing gasifier burner |
| CN105318320A (en) * | 2015-10-30 | 2016-02-10 | 北京神雾环境能源科技集团股份有限公司 | Semi coke powder and lean gas mixing combustion device, system and method |
| CN105318320B (en) * | 2015-10-30 | 2018-06-08 | 神雾科技集团股份有限公司 | A kind of semi-coke powder and poor gas mixed combustion apparatus, system and method |
| CN107033971A (en) * | 2016-02-04 | 2017-08-11 | 清华大学煤燃烧工程研究中心 | Multichannel combination burner and coal slurry gasifier for coal slurry gasifier |
| CN107033971B (en) * | 2016-02-04 | 2021-01-08 | 清华大学 | Multi-channel combined burner for coal water slurry gasification furnace and coal water slurry gasification furnace |
| CN111676064A (en) * | 2020-06-03 | 2020-09-18 | 清华大学 | Coal gasification burner and gasification furnace thereof |
| CN113999700A (en) * | 2021-09-13 | 2022-02-01 | 郑州大学 | Five-channel process burner |
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Owner name: CHINA SHENHUA COAL TO LIQUID AND CHEMICAL CO., LTD Free format text: FORMER OWNER: CHINA SHENHUA COAL TO LIQUID AND CHEMICAL CO., LTD. BAOTOU COAL CHEMICAL BRANCH OF SHENHUA COAL TO LIQUID AND CHEMICAL CO., LTD. Effective date: 20131205 |
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Effective date of registration: 20131205 Address after: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Shenhua building Patentee after: Shenhua Group LLC Patentee after: China Shenhua Coal to Liquid and Chemical Co., Ltd. Address before: 100011 Beijing Dongcheng District, West Binhe Road, No. 22 Shenhua building Patentee before: Shenhua Group LLC Patentee before: China Shenhua Coal to Liquid and Chemical Co., Ltd. Patentee before: Baotou Coal Chemical Branch of Shenhua Coal to Liquid and Chemical Co., Ltd. |
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| CX01 | Expiry of patent term |
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