CN209481585U - Multi nozzle of gasification furnace with recuperation of heat - Google Patents
Multi nozzle of gasification furnace with recuperation of heat Download PDFInfo
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- CN209481585U CN209481585U CN201821906052.5U CN201821906052U CN209481585U CN 209481585 U CN209481585 U CN 209481585U CN 201821906052 U CN201821906052 U CN 201821906052U CN 209481585 U CN209481585 U CN 209481585U
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- 238000002309 gasification Methods 0.000 title claims abstract description 73
- 238000001816 cooling Methods 0.000 claims abstract description 169
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 60
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 60
- 239000001301 oxygen Substances 0.000 claims abstract description 60
- 239000002893 slag Substances 0.000 claims abstract description 55
- 230000005855 radiation Effects 0.000 claims abstract description 48
- 239000002699 waste material Substances 0.000 claims abstract description 45
- 239000007789 gas Substances 0.000 claims abstract description 40
- 239000006200 vaporizer Substances 0.000 claims abstract description 33
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 16
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000003250 coal slurry Substances 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 9
- 239000000498 cooling water Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 3
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000003063 flame retardant Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims 1
- 239000003245 coal Substances 0.000 description 15
- 238000009826 distribution Methods 0.000 description 11
- 239000002956 ash Substances 0.000 description 10
- 230000000903 blocking effect Effects 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 10
- 230000004927 fusion Effects 0.000 description 6
- 239000011819 refractory material Substances 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000002002 slurry Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011449 brick Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Substances OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000010742 number 1 fuel oil Substances 0.000 description 1
- 239000007800 oxidant agent Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000013517 stratification Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Gasification And Melting Of Waste (AREA)
Abstract
The utility model discloses the multi nozzle of gasification furnace with recuperation of heat, comprising: shell, shell is interior to form vaporizer, and the bottom crimp of shell forms vaporizer slag notch；Top burner, is located on the roof of shell；Secondary oxygen supply burner, is located on the side wall of shell；Radiation waste pot is located at the lower section of gasification furnace and is connected with vaporizer slag notch, and the bottom crimp of radiation waste pot is at useless pot slag notch, and radiation waste pot includes: water-cooling wall, and water-cooling wall is located in radiation waste pot and water-cooling wall limits outlet slag channel；Water-cooling screen group, water-cooling screen group includes multiple long water-cooling screens and multiple short water-cooling screens, multiple long water-cooling screens and multiple short water-cooling screens are located in gas slag channel and circumferentially distributed, and each long water-cooling screen and each short water-cooling screen are extended from water-cooling wall to Qi Zha channel center axis direction；Deslagging pond is connected with the bottom of radiation waste pot, and useless pot slag notch extends to liquid level in deslagging pond hereinafter, the side wall in deslagging pond is exported with crude synthesis gas.
Description
Technical field
The utility model belongs to gasification furnace field, specifically, the utility model relates to the multiinjector gasifications with recuperation of heat
Furnace.
Background technique
Gasification reaction often carries out under high-temperature and high-pressure conditions, thus gasification furnace wall surface generally require using refractory material come
Ensure furnace body safety.Flame distribution in gasification furnace is mainly related with oxygen distribution, when take top multiinjector or single injector charging
When, due to top oxidant abundance, it is higher to often lead to top area flame temperature, so as to cause top burner and wall surface part
Region refractory life is partially short, usually needs to stop during production to be overhauled, causes the waste of manpower and financial resources.
Gasification furnace with radiation waste pot can digest high-sulfur, high ash, high-ash-fusion coal, realize feed coal localization, solution
Certainly Shanxi " three high " coal gasification problem also provides new method, new tool for the comprehensive utilization of national " three high " coal, gasification；It is right
Traditional coal chemical industry is transformed and develops the New Coal Chemicals such as natural gas from coal, coal oil, coal-to-olefin, coal-ethylene glycol and produces in Shanxi Province
Industry is of great significance.And by the way that radiation waste Pot devices are arranged inside gasification furnace, it is high by recycling in equipment running process
The modes such as warm high pressure synthesis gas heat, by-product high temperature and high pressure steam save fuel consumption, energy conversion efficiency are improved, to drop
The low operating cost of equipment entirety.However existing radiation waste Pot devices there are heat exchange area it is low and easily occur channel blockage
The problems such as, it is therefore desirable to it is further improved.
Utility model content
The utility model is intended to solve at least some of the technical problems in related technologies.For this purpose, this reality
It is to propose a kind of multi nozzle of gasification furnace with recuperation of heat with a novel purpose, coal can be significantly improved using the gasification furnace
The gasification efficiency of slurry, while channel blockage can be avoided while improving heat exchange area in radiation waste pot, and obtain preliminary
The synthesis gas of purification.
One aspect according to the present utility model, the utility model proposes a kind of multi nozzle of gasification furnace with recuperation of heat.
Embodiment according to the present utility model, the gasification furnace include:
Shell, the shell is interior to form vaporizer, is provided with flame retardant coating, the fire resisting layer material on the inner wall of the shell
Bottom crimp for refractory brick or water-cooling wall, the shell forms vaporizer slag notch；
Top burner, the top burner are arranged on the roof of the shell and are suitable for spraying coal to the vaporizer
Slurry, oxygen and steam or water-coal-slurry, oxygen；
Secondary oxygen burner, the secondary oxygen burner are arranged on the side wall of the shell and are suitable for spraying to the vaporizer
Oxygen；
Radiation waste pot, the radiation waste pot are located at the lower section of the vaporizer and are connected with the vaporizer slag notch, institute
The bottom crimp for stating radiation waste pot forms useless pot slag notch, and the radiation waste pot includes:
Water-cooling wall, the water-cooling wall is located in the radiation waste pot and the water-cooling wall limits outlet slag channel；
Water-cooling screen group, the water-cooling screen group include multiple long water-cooling screens and multiple short water-cooling screens, the multiple long water-cooling screen
In gas slag channel and circumferentially distributed, each long water-cooling screen and each described short is located at the multiple short water-cooling screen
Water-cooling screen is extended from the water-cooling wall to Qi Zha channel center axis direction；
Wherein, the lower header of the lower header of the water-cooling wall and each long water-cooling screen, each short water-cooling screen
Lower header is connected and is connected with the cooling water inlet pipe for passing through radiation waste pot lower part；
The upper collecting chamber of the upper collecting chamber of the upper collecting chamber of the water-cooling wall and each long water-cooling screen, each short water-cooling screen
It is connected and is connected with the cooling water outlet pipe for passing through radiation waste pot top；
Deslagging pond, the deslagging pond are connected with the bottom of the radiation waste pot, and the useless pot slag notch extends to the row
For liquid level in slag bath hereinafter, the side wall in the deslagging pond is exported with crude synthesis gas, bottom has slag-drip opening.
Top is arranged by the roof in gasification furnace according to the multi nozzle of gasification furnace with recuperation of heat of the utility model embodiment
Portion's burner is arranged secondary oxygen burner in side wall, is sprayed coal slurry, oxygen and steam or water coal into vaporizer using top burner
Slurry and oxygen, spray oxygen into vaporizer using secondary oxygen burner.Therefore, oxygen classification can be supplied, control top is burnt
The oxygen supply ratio of mouth, maintain the temperature at the ash fusion point of coal hereinafter, and secondary oxygen burner is passed through second level oxygen, make gasify room temperature
It is increased to ash fusion point or more.So that entirely more evenly, average temperature level is improved gasification indoor temperature distribution, gasification
It reacts more abundant, improves the efficiency of carbon con version of coal；And gasification indoor temperature distribution is more evenly, and may also reach up reduces furnace roof temperature
The effect of degree extends the service life of top jet nozzle and top refractory material.In addition, in the radiation waste pot of gasification furnace lower end setting by
The water-cooling screen group of multiple long water-cooling screens and multiple short water-cooling screen compositions, the setting of more existing common water-cooling screen, which significantly improves, changes
Heat area, and the blocking in gas slag channel is not easily led to, while the lower end of the useless pot slag notch in radiation waste pot lower end extends to
Liquid level in deslagging pond hereinafter, the make synthesis gas after pot heat exchange that gives up via radiation enters in deslagging pond after further cooling and ash disposal again
It exports and is discharged through crude synthesis gas.Coal slurry can be significantly improved using the multi nozzle of gasification furnace with recuperation of heat of the application as a result,
Gasification efficiency, while channel blockage can be avoided while improving heat exchange area in radiation waste pot, and obtain preliminary purification
Synthesis gas.
In addition, can also be had according to the multi nozzle of gasification furnace with recuperation of heat of the utility model above-described embodiment following attached
The technical characteristic added:
Optional, fire rod is provided in the top burner.
Optional, the secondary oxygen burner includes at least 1-6, preferably 2-4.
Optional, the secondary oxygen burner is uniformly distributed circumferentially on the side wall of the shell.
Optional, the secondary oxygen burner sprays in the horizontal direction.
Optional, the vertical distance H of the secondary oxygen burner and the top burner is the 1/3-3/4 of vaporizer.
Optional, circumferentially upper intersection is spaced apart for the multiple long water-cooling screen and the multiple short water-cooling screen.As a result, may be used
To improve the Exposure degree efficiency of the gasification furnace.
Optional, the 1-2 short water-cooling screens are arranged between long water-cooling screen described in each adjacent two.Thus, it is possible into one
Step improves the Exposure degree efficiency of the gasification furnace.
Optional, per the adjacent long water-cooling screen between the short water-cooling screen or per two adjacent short cold water
Angle between screen is 15-45 degree.Thus, it is possible to further increase the Exposure degree efficiency of the gasification furnace.
Optional, the total number of the long water-cooling screen and the short water-cooling screen is 8-24.Thus, it is possible to further increase
The Exposure degree efficiency of the gasification furnace.
Optional, each long water-cooling screen has 8-18 root water cooling tube.Thus, it is possible to further increase the gasification furnace
Exposure degree efficiency.
Optional, each short water-cooling screen has 4-8 root water cooling tube.Thus, it is possible to further increase the gasification furnace
Exposure degree efficiency.
Optional, the long water-cooling screen is connected with the water-cooling wall by fin, and the width of the long water-cooling screen is described
The 1/10-1/4 of gas slag channel radius.Thus, it is possible to further increase the Exposure degree efficiency of the gasification furnace.
Optional, the short water-cooling screen is connected with the water-cooling wall by fin, and the width of the short water-cooling screen is described
The 1/20-1/10 of gas slag channel radius.Thus, it is possible to further increase the Exposure degree efficiency of the gasification furnace.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will
Become obvious and be readily appreciated that, in which:
Fig. 1 is the structural schematic diagram according to the multi nozzle of gasification furnace with recuperation of heat of the utility model one embodiment.
Fig. 2 is the A-A of radiation waste pot in the multi nozzle of gasification furnace with recuperation of heat according to the utility model one embodiment
Horizontal cross-section top view.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside",
The orientation or positional relationship of the instructions such as " clockwise ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " is based on the figure
Orientation or positional relationship is merely for convenience of describing the present invention and simplifying the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.The meaning of " plurality " is at least two, such as two in the description of the present invention,
It is a, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. terms shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
The interaction relationship of connection or two elements inside element, unless otherwise restricted clearly.For the common skill of this field
For art personnel, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the present invention unless specifically defined or limited otherwise, fisrt feature is in the second feature " on " or " down "
It can be that the first and second features directly contact or the first and second features are by intermediary mediate contact.Moreover, first is special
Sign can be fisrt feature above the second feature " above ", " above " and " above " and be directly above or diagonally above the second feature, or only
Indicate that first feature horizontal height is higher than second feature.Fisrt feature under the second feature " below ", " below " and " below " can be with
It is that fisrt feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
One aspect according to the present utility model, the utility model proposes a kind of multi nozzle of gasification furnace with recuperation of heat.
Gasification furnace
Embodiment according to the present utility model, with reference to Fig. 1, gasification furnace includes shell 10, top burner 11, secondary oxygen burner
12 and vaporizer slag notch 101, radiation waste pot 15 and deslagging pond 16.
One embodiment according to the present utility model forms vaporizer 13, the inner wall of shell 10 in shell 10 with reference to Fig. 1
On be provided with flame retardant coating 14, fire resisting layer material is refractory brick or water-cooling wall, and the bottom crimp of shell 10 forms vaporizer slag notch
101.A specific embodiment according to the present utility model, top burner 11 are arranged on the roof of shell 10 and are suitable for gasification
Injection coal slurry, oxygen and steam or water-coal-slurry and oxygen in room 13；Secondary oxygen burner 12 be arranged on the side wall of shell 10 and
Suitable for spraying oxygen to vaporizer 13.Inventors have found that being arranged two in side wall by the burner at the top of the setting of the roof of gasification furnace
Secondary oxygen burner sprays coal slurry, oxygen and steam or water-coal-slurry and oxygen into vaporizer using top burner, utilizes secondary oxygen
Burner sprays oxygen into vaporizer.Therefore, oxygen classification can be supplied, the oxygen supply ratio of control top burner keeps temperature
Spend coal ash fusion point hereinafter, and secondary oxygen burner is passed through second level oxygen, make gasify room temperature be increased to ash fusion point or more.By
This entirely to gasify indoor temperature distribution more evenly, and average temperature level is improved, and gasification reaction is more abundant, improves coal
Efficiency of carbon con version；And gasification indoor temperature distribution is more evenly, may also reach up the effect for reducing top temperature, extends top spray
The service life of mouth and top refractory material.
Another specific embodiment according to the present utility model is provided with fire rod in top jet nozzle 11, and then effectively real
Now light a fire.
Another specific embodiment according to the present utility model, secondary oxygen burner 12 include at least 1-6, preferably 2-4.
And then the oxygen sprayed into can be made to be evenly distributed, so that uniformity of temperature profile in vaporizer, average temperature level are improved,
Gasification reaction is more abundant.Preferably, secondary oxygen burner 12 is uniformly distributed circumferentially on the side wall of shell 10.It is possible thereby into
The uniformity that one step raising oxygen is evenly distributed gasifies so that uniformity of temperature profile in vaporizer, average temperature level are improved
It reacts more abundant, improves coal slurry efficiency of carbon con version；Top temperature is reduced simultaneously, extends the longevity of top jet nozzle and top refractory material
Life.
Another specific embodiment according to the present utility model, secondary oxygen burner 12 spray in the horizontal direction, make oxygen pair
Spray is hit, and is exacerbated the mixing with material, is improved gasification W-response rate.
Another specific embodiment according to the present utility model, as shown in Figure 1, secondary oxygen burner 12 and top burner 11
Vertical distance H is the 1/3-3/4 of gasification body, helps to improve the reaction temperature at the gasification furnace position, promotes gasification reaction, simultaneously
Ensure gasification furnace slag tap.
Embodiment according to the present utility model, with reference to Fig. 1, radiation waste pot 15 is located at the lower section of vaporizer 13 and and vaporizer
Slag notch 101 is connected, and the bottom crimp of radiation waste pot 15 forms useless pot slag notch 102.
One embodiment according to the present utility model, with reference to Fig. 1, radiation waste pot 15 includes: water-cooling wall 17 and water-cooling screen group
18。
A specific embodiment according to the present utility model, with reference to Fig. 1, water-cooling wall 17 is located in radiation waste pot 15 and water cooling
Wall 17 limits outlet slag channel 19.Specifically, high-temperature crude synthesis gas obtained in vaporizer under vaporizer slag notch through being advanced into
Radiation waste pot exchanges heat with water-cooling wall, to realize the recycling of crude synthesis gas sensible heat.
Another specific embodiment according to the present utility model, with reference to Fig. 1 and 2, water-cooling screen group 18 includes multiple long water coolings
Screen 181 and multiple short water-cooling screens 182, multiple long water-cooling screens 181 and multiple short water-cooling screens 182 are located in gas slag channel 19 and along week
To distribution, each long water-cooling screen 181 and each short water-cooling screen 182 are prolonged from water-cooling wall 17 to 19 central axis direction of gas slag channel
It stretches.Obviously, the utility model includes multiple long water-cooling screens and multiple short water by being arranged in the gas slag channel that water-cooling wall is formed
The setting of the more common water-cooling screen of water-cooling screen group of cold screen significantly improves heat exchange area, and Exposure degree is more thorough, and will not be right
Gas slag channel results in blockage.
A specific example according to the present utility model, with reference to Fig. 2, multiple long water-cooling screens 181 and multiple short water-cooling screens 182
Along the circumferential transpostion interval distribution in gas slag channel 19.Specifically, it can use short water-cooling screen 182 for two or more long water-cooling screens
181 are spaced apart, and then can arrange closely to avoid multiple long water-cooling screens 181, be easy to cause fouling and slagging, blocking radiation waste pan gas
Slag channel influences equipment operation.Furthermore it is also possible to be filled up between two or more long water-cooling screens 181 using short water-cooling screen 182
Gap, and then will not also result in blockage to gas slag channel while effectively improving heat exchange area.Preferably, each adjacent two is long
1-2 short water-cooling screens 182 are arranged between water-cooling screen 181.Inventors have found that taking this water-cooling screen set-up mode, can increase
Large radiation give up pot heat exchange area while, effectively avoid dust stratification inside radiation waste pot from blocking up slag phenomenon, normally drive in equipment
In the case of, the heat exchange efficiency of maximum lifting system.Specific embodiment according to the present utility model, it is preferable that as shown in Fig. 2,
1 short water-cooling screen 182 is arranged between the long water-cooling screen 181 of each adjacent two.And multiple long water-cooling screens 181 and multiple short water-cooling screens
It can be circumferentially uniformly distributed along gas slag channel 19 between 182, and then the structure that heat exchange uniformity and radiation waste pot can be improved is steady
It is qualitative.
The total number of another specific example according to the present utility model, long water-cooling screen 181 and short water-cooling screen 182 is 8-24
It is a.Specifically it can suitably be increased and decreased according to 19 space size of gas slag channel in water-cooling wall.But long water-cooling screen 181 and short water-cooling screen
182 total number should not be excessive or very few, if very few meeting wasting space reduces heat exchange area, and then Exposure degree efficiency
It is low；Gas slag channel 19 can be made into if excessive to be excessively narrow, and then be likely to result in slag blocking and wall built-up, seriously affect and set
Received shipment row.
Another specific example according to the present utility model, in order to avoid 19 space size pair of gas slag channel in water-cooling wall 17
Long water-cooling screen 181 and short water-cooling screen 182 several settings influence, as shown in Fig. 2, by every adjacent long water-cooling screen 181 and short water
Angle α between cold screen 182 or per adjacent two short water-cooling screen 182 is set as 15-45 degree, and then can be more convenient
Determine the total number setting of water-cooling screen in water-cooling screen group 18.It especially can effectively keep long 181 He of water-cooling screen in water-cooling screen group 18
The distribution density of short water-cooling screen 182, so that water-cooling screen group 18 reaches maximum heat exchange area and best heat transfer effect.In addition, invention
People also found, so that the angle between each adjacent two water-cooling screen is that 15-45 degree can also avoid slag blocking and wall built-up, in turn
Heat exchange efficiency is improved, cost is saved.
Another specific example according to the present utility model, each long water-cooling screen 181 have 8-18 root water cooling tube.Thus may be used
To effectively improve heat exchange area.And the water pipe number of long water-cooling screen 181 can also according to long water-cooling screen 181 from water-cooling wall 17 to
The width that center position extends does not cause slag blocking, wall built-up and has subject to certain operating space.Specifically, as shown in Fig. 2,
Long water-cooling screen 181 is connected with water-cooling wall 17 by fin (not shown), and the width L1 of long water-cooling screen 181 is 19 radius of gas slag channel
The 1/10-1/4 of R.It is possible thereby to which it is logical not will cause fouling and slagging, blocking radiation waste pot while guaranteeing maximum heat exchange area
Road.
Another specific example according to the present utility model, each short water-cooling screen 182 have 4-8 root water cooling tube.Thus may be used
Effectively to make up gap between two long water-cooling screen 181, and then heat exchange area is improved to the maximum extent.And short water-cooling screen 182
Water pipe radical can also according to short water-cooling screen 182 from water-cooling wall 17 to the width that center position extends not cause slag blocking,
Wall built-up and have certain operating space subject to.Specifically, as shown in Fig. 2, short water-cooling screen 182 and water-cooling wall 17 pass through fin (not
Show) it is connected, the width L2 of short water-cooling screen 182 is the 1/20-1/10 of 19 radius R of gas slag channel.It is possible thereby to guaranteeing maximum
While heat exchange area, slag blocking and wall built-up not will cause.
Another embodiment according to the present utility model, with reference to Fig. 1, the lower header 171 of water-cooling wall 17 and each long water cooling
Screen 181 lower header 183, each short water-cooling screen 182 lower header 184 be connected and with pass through 15 lower part of radiation waste pot cooling water
Water inlet pipe 185 is connected；The upper collecting chamber 186 of the upper collecting chamber 172 of water-cooling wall 17 and each long water-cooling screen 181, each short water-cooling screen
182 upper collecting chamber 187 is connected and is connected with the cooling water outlet pipe 188 for passing through 17 top of radiation waste pot.
Another embodiment according to the present utility model, with reference to Fig. 1, deslagging pond 16 is connected with the bottom of radiation waste pot 15,
And useless pot slag notch 102 extends to liquid level in deslagging pond 16 hereinafter, the side wall in deslagging pond 16 has crude synthesis gas outlet 103,
Bottom is equipped with slag-drip opening 104, specifically, crude synthesis gas outlet 103 is located on the side wall in deslagging pond 16 more than liquid level, via radiation
The synthesis gas of useless pot slag notch 102 discharge of useless 15 bottom of pot enters the liquid level in deslagging pond 16 or less progress Quench and ash disposal is laggard
Enter, then 103 discharge of crude synthesis gas outlet of the side wall in deslagging pond 16 more than liquid level, and lime-ash obtained in deslagging pond 16
Directly it is discharged through slag-drip opening 104.
Top is arranged by the roof in gasification furnace according to the multi nozzle of gasification furnace with recuperation of heat of the utility model embodiment
Portion's burner is arranged secondary oxygen burner in side wall, is sprayed coal slurry, oxygen and steam or water coal into vaporizer using top burner
Slurry and oxygen, spray oxygen into vaporizer using secondary oxygen burner.Therefore, oxygen classification can be supplied, control top is burnt
The oxygen supply ratio of mouth, maintain the temperature at the ash fusion point of coal hereinafter, and secondary oxygen burner is passed through second level oxygen, make gasify room temperature
It is increased to ash fusion point or more.So that entirely more evenly, average temperature level is improved gasification indoor temperature distribution, gasification
It reacts more abundant, improves coal slurry efficiency of carbon con version；And gasification indoor temperature distribution is more evenly, and may also reach up reduces furnace roof temperature
The effect of degree extends the service life of top jet nozzle and top refractory material.In addition, in the radiation waste pot of gasification furnace lower end setting by
The water-cooling screen group of multiple long water-cooling screens and multiple short water-cooling screen compositions, the setting of more existing common water-cooling screen, which significantly improves, changes
Heat area, and the blocking in gas slag channel is not easily led to, while the lower end of the useless pot slag notch in radiation waste pot lower end extends to
Liquid level in deslagging pond hereinafter, the make synthesis gas after pot heat exchange that gives up via radiation enters in deslagging pond after further cooling and ash disposal again
It exports and is discharged through crude synthesis gas.Coal slurry can be significantly improved using the multi nozzle of gasification furnace with recuperation of heat of the application as a result,
Gasification efficiency, while channel blockage can be avoided while improving heat exchange area in radiation waste pot.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is contained at least one embodiment or example of the utility model.In the present specification, to the schematic table of above-mentioned term
Identical embodiment or example need not be directed to by stating.Moreover, particular features, structures, materials, or characteristics described can be
It can be combined in any suitable manner in any one or more embodiment or examples.In addition, without conflicting with each other, this field
Technical staff can carry out the feature of different embodiments or examples described in this specification and different embodiments or examples
Combination and combination.
Although the embodiments of the present invention have been shown and described above, it is to be understood that above-described embodiment is
Illustratively, it should not be understood as limiting the present invention, those skilled in the art are in the scope of the utility model
Inside it can make changes, modifications, alterations, and variations to the above described embodiments.
Claims (15)
1. a kind of multi nozzle of gasification furnace with recuperation of heat characterized by comprising
Shell, the shell is interior to form vaporizer, and flame retardant coating is provided on the inner wall of the shell, and the fire resisting layer material is resistance to
The bottom crimp of firebrick or water-cooling wall, the shell forms vaporizer slag notch；
Top burner, the top burner are arranged on the roof of the shell and are suitable for spraying coal slurry, oxygen to the vaporizer
Gas and steam or water-coal-slurry, oxygen；
Secondary oxygen burner, the secondary oxygen burner are arranged on the side wall of the shell and are suitable for spraying oxygen to the vaporizer
Gas；
Radiation waste pot, the radiation waste pot are located at the lower section of the vaporizer and are connected with the vaporizer slag notch, the spoke
The bottom crimp for penetrating useless pot forms useless pot slag notch, and the radiation waste pot includes:
Water-cooling wall, the water-cooling wall is located in the radiation waste pot and the water-cooling wall limits outlet slag channel；
Water-cooling screen group, the water-cooling screen group include multiple long water-cooling screens and multiple short water-cooling screens, the multiple long water-cooling screen and institute
It states multiple short water-cooling screens and is located in gas slag channel and circumferentially distributed, each long water-cooling screen and each short water cooling
Screen is extended from the water-cooling wall to Qi Zha channel center axis direction；
Wherein, the next part of the lower header of the lower header of the water-cooling wall and each long water-cooling screen, each short water-cooling screen
Case is connected and is connected with the cooling water inlet pipe for passing through radiation waste pot lower part；
The upper collecting chamber of the water-cooling wall is connected with the upper collecting chamber of the upper collecting chamber of each long water-cooling screen, each short water-cooling screen
And it is connected with the cooling water outlet pipe for passing through radiation waste pot top；
Deslagging pond, the deslagging pond are connected with the bottom of the radiation waste pot, and the useless pot slag notch extends to the deslagging pond
For interior liquid level hereinafter, the side wall in the deslagging pond is exported with crude synthesis gas, bottom has slag-drip opening.
2. gasification furnace according to claim 1, which is characterized in that be provided with fire rod in the top burner.
3. gasification furnace according to claim 1, which is characterized in that the secondary oxygen burner includes 1-6.
4. gasification furnace according to claim 1, which is characterized in that the secondary oxygen burner includes 2-4.
5. gasification furnace according to claim 3 or 4, which is characterized in that side wall of the secondary oxygen burner in the shell
On be uniformly distributed circumferentially.
6. gasification furnace according to claim 5, which is characterized in that the secondary oxygen burner sprays in the horizontal direction.
7. gasification furnace according to claim 6, which is characterized in that the secondary oxygen burner is vertical with the top burner
Distance is the 1/3-3/4 of vaporizer.
8. gasification furnace according to claim 1, which is characterized in that the multiple long water-cooling screen and the multiple short water-cooling screen
Circumferentially upper intersection is spaced apart.
9. gasification furnace according to claim 8, which is characterized in that arrange 1-2 between long water-cooling screen described in each adjacent two
A short water-cooling screen.
10. gasification furnace according to claim 9, which is characterized in that per the adjacent long water-cooling screen and the short water-cooling screen
Between or per the angle between two adjacent short water-cooling screens be 15-45 degree.
11. gasification furnace according to claim 8, which is characterized in that total of the long water-cooling screen and the short water-cooling screen
Number is 8-24.
12. gasification furnace according to claim 1, which is characterized in that each long water-cooling screen has 8-18 root water cooling tube.
13. gasification furnace according to claim 1, which is characterized in that each short water-cooling screen has 4-8 root water cooling tube.
14. gasification furnace according to claim 1, which is characterized in that the long water-cooling screen and the water-cooling wall pass through fin
It is connected, the width of the long water-cooling screen is the 1/10-1/4 of the gas slag channel radius.
15. gasification furnace according to claim 1, which is characterized in that the short water-cooling screen and the water-cooling wall pass through fin
It is connected, the width of the short water-cooling screen is the 1/20-1/10 of the gas slag channel radius.
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| CN201821906052.5U CN209481585U (en) | 2018-11-19 | 2018-11-19 | Multi nozzle of gasification furnace with recuperation of heat |
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| CN201821906052.5U CN209481585U (en) | 2018-11-19 | 2018-11-19 | Multi nozzle of gasification furnace with recuperation of heat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370655A (en) * | 2018-11-19 | 2019-02-22 | 清华大学山西清洁能源研究院 | Multi nozzle of gasification furnace with recuperation of heat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109370655A (en) * | 2018-11-19 | 2019-02-22 | 清华大学山西清洁能源研究院 | Multi nozzle of gasification furnace with recuperation of heat |
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