CN209383714U - The full recovery system of multiinjector waste heat - Google Patents
The full recovery system of multiinjector waste heat Download PDFInfo
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- CN209383714U CN209383714U CN201821906067.1U CN201821906067U CN209383714U CN 209383714 U CN209383714 U CN 209383714U CN 201821906067 U CN201821906067 U CN 201821906067U CN 209383714 U CN209383714 U CN 209383714U
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- pot
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- multiinjector
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- 238000011084 recovery Methods 0.000 title claims abstract description 25
- 239000002918 waste heat Substances 0.000 title claims abstract description 22
- 238000001816 cooling Methods 0.000 claims abstract description 107
- 239000007789 gas Substances 0.000 claims abstract description 75
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 62
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 62
- 230000005855 radiation Effects 0.000 claims abstract description 41
- 239000002699 waste material Substances 0.000 claims abstract description 40
- 238000002309 gasification Methods 0.000 claims abstract description 27
- 238000000034 method Methods 0.000 claims abstract description 27
- 239000000428 dust Substances 0.000 claims abstract description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 230000008676 import Effects 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000006200 vaporizer Substances 0.000 claims description 22
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 17
- 239000001301 oxygen Substances 0.000 claims description 17
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- 239000003245 coal Substances 0.000 claims description 16
- 239000003250 coal slurry Substances 0.000 claims description 7
- 239000002893 slag Substances 0.000 claims description 7
- 239000002817 coal dust Substances 0.000 claims description 6
- 239000000498 cooling water Substances 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 10
- 229910052799 carbon Inorganic materials 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000004064 recycling Methods 0.000 description 5
- 230000000903 blocking effect Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000003034 coal gas Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000009527 percussion Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000005507 spraying Methods 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
- 230000008602 contraction Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 235000019615 sensations Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
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- 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
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- Cyclones (AREA)
Abstract
The utility model discloses the full recovery systems of multiinjector waste heat, it include: gasification furnace, cyclone separator, the useless pot of convection current, gasification furnace includes: shell, a main burner, at least two technique nozzles and radiation waste pot, radiation waste pot includes: the second water-cooling wall, second water-cooling wall is located in radiation waste pot, and the second water-cooling wall forms synthesis gas down going channel；Water-cooling screen group, water-cooling screen group include multiple water-cooling screens, and multiple water-cooling screens are located in synthesis gas down going channel and circumferentially distributed；Deslagging pond is located at the lower section of radiation waste pot and is connected with radiation waste the bottom of a pan end, and the side wall in deslagging pond is equipped with syngas outlet, and deslagging bottom of pond portion has slag-drip opening；Third water-cooling wall is equipped in cyclone dust collectors, cyclone dust collectors have gas outlet and ash discharging hole after crude synthesis gas import, dedusting；Convection current is given up, and pot is interior to be equipped with water cooling tube, and the useless cookware of convection current has gas import, syngas outlet and ash hole after dedusting.
Description
Technical field
The utility model belongs to gasification furnace field, specifically, the utility model relates to the full recovery systems of multiinjector waste heat.
Background technique
The coal gas of high temperature sensible heat process program of coal gasification recycling at present specifically includes that chilling process and pot destroying process.Wherein swash
Cold technique is the most commonly used, can by vaporizer come out coal gas of high temperature from 1300 degrees centigrade Quench to 300 degrees Celsius hereinafter,
Device structure is simple, with low investment, but energy recovery efficiency is low.Radiation waste pot can be by coal gas of high temperature from 1300 degrees Celsius of coolings
To 700 degrees centigrades, part of high temperature sensible heat is recycled, but still has energy loss, while the conjunction after gained heat exchange
Cause at dust is carried in gas, leads to erosion corrosion pipeline.
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 full recovery system of multiinjector coal-water-slurry water-cooled wall waste heat with a novel purpose, it can be using the system
The abundant recycling of synthesis gas sensible heat, and gained synthesis gas product with higher are realized while improving the efficiency of carbon con version of fine coal
Matter.
In the one aspect of the utility model, the utility model proposes a kind of full recovery systems of multiinjector waste heat.According to
The embodiments of the present invention, the full recovery system of multiinjector waste heat include:
Gasification furnace, the gasification furnace include:
Shell, the shell is interior to form vaporizer, is provided with the first water-cooling wall, the bottom of the shell in the vaporizer
Contraction forms vaporizer slag notch；
The center of the housing top wall is arranged in one main burner, the main burner, and the main burner is suitable for institute
State vaporizer injection fine coal, oxygen and steam or water-coal-slurry and oxygen；
At least two technique nozzles, the technique nozzle is located in the housing top wall and the neighbouring main burner is arranged,
The technique nozzle is suitable for vaporizer injection coal dust, oxygen and steam or water-coal-slurry and oxygen；
Radiation waste pot, the radiation waste pot are connected with the bottom end of the gasification furnace, and the radiation waste pot includes:
Second water-cooling wall, second water-cooling wall are arranged in the radiation waste pot, and second water-cooling wall forms synthesis
Gas down going channel；
Water-cooling screen group, the water-cooling screen group include multiple water-cooling screens, and the multiple water-cooling screen is located at the synthesis gas downlink
In channel and circumferentially distributed, each water-cooling screen is from second water-cooling wall to the synthesis gas down going channel central axis
Direction extends；
Wherein, the lower header of the lower header of second water-cooling wall and each water-cooling screen be connected and with pass through the spoke
The cooling water inlet pipe for penetrating useless pot lower part is connected；
The upper collecting chamber of the upper collecting chamber of second water-cooling wall and each water-cooling screen be connected and with pass through the radiation waste
Pot top cooling water outlet pipe be connected, deslagging pond, the deslagging pond be located at the lower section of the radiation waste pot and with the spoke
It penetrates useless the bottom of a pan end to be connected, the side wall in the deslagging pond is equipped with syngas outlet, and the deslagging bottom of pond portion has slag-drip opening；
Cyclone dust collectors, the cyclone dust collectors are interior to be equipped with third water-cooling wall, and the cyclone dust collectors have thick close
It is connected at gas outlet and ash discharging hole, the crude synthesis gas import after gas import, dedusting with the syngas outlet；
Convection current is given up pot, and the convection current, which is given up, is equipped with water cooling tube in pot, and the convection current give up cookware have after dedusting synthesis gas into
Mouth, syngas outlet and ash hole, synthesis gas import is connected with syngas outlet after the dedusting after the dedusting.
According to the full recovery system of multiinjector waste heat of the utility model embodiment by being provided on the roof of gasification furnace
One main burner and at least two technique nozzles, can simultaneously using main burner and technique nozzle sprayed into vaporizer fine coal,
Oxygen and steam increase the mixed effect of material, so that coal dust energy so as to significantly improve the indoor percussion flow of gasification
Enough full combustion gasifications, improve efficiency of carbon con version.Radiation waste pot is set below gasification furnace simultaneously, so that the high temperature that vaporizer obtains
Synthesis gas is directly entered in radiation waste pot, and is arranged in the synthesis gas down going channel that water-cooling wall limits in radiation waste pot by more
The water-cooling screen group of a water-cooling screen composition, increases heat exchange area, so that synthesis gas Exposure degree efficiency is significantly improved, after heat exchange
The syngas outlet that synthesis gas is set on the side wall of deslagging pond, which is supplied, carries out cyclonic separation into water-cooling wall cyclone dust collectors
Processing, so that flying dust entrained by crude synthesis gas is separated, and reduces abrasion of the ash particle to the useless pot of subsequent convection current, simultaneously
Water-cooling wall in cyclone dust collectors can further exchange heat to synthesis gas, and it is useless that the synthesis gas after last dedusting resupplies convection current
Recuperation of heat is carried out in pot, obtains the synthesis gas of high-quality.The same of the efficiency of carbon con version of fine coal can improved using the system as a result,
The abundant recycling of Shi Shixian synthesis gas sensible heat.
In addition, can also be had according to the full recovery system of multiinjector waste heat of the utility model above-described embodiment following additional
Technical characteristic:
Optional, it is provided with fire rod in the main burner, there is ignition function.
Optional, at least two technique nozzles are uniformly distributed centered on the main burner and in the circumferential.As a result,
The efficiency of carbon con version of coal gasification process can be significantly improved.
Optional, the technique nozzle and the main burner are arranged in 10-45 degree angle.Thus, it is possible to further increase
The efficiency of carbon con version of coal gasification process.
Optional, the water-cooling screen is 8-24.Thus, it is possible to significantly improve system synthesis gas Exposure degree efficiency.
Optional, the angle between water-cooling screen described in each adjacent two is 15-45 degree.Thus, it is possible to further increase and be
System synthesis gas Exposure degree efficiency.
Optional, each water-cooling screen has 6-15 root water cooling tube.Thus, it is possible to which it is aobvious to further increase system synthesis gas
Heat recovery efficiency.
Optional, the water-cooling screen is connected with second water-cooling wall by fin, and the width of the water-cooling screen is described
The 1/9-1/4 of synthesis gas down going channel radius.Thus, it is possible to effectively avoid the blocking of radiation waste pot.
Optional, the water cooling tube being arranged in the useless pot of the convection current is snakelike water cooling tube.Thus, it is possible to which it is useless to further increase this
The Exposure degree efficiency of hot full recovery system.
The additional aspect and advantage of the utility model will be set forth in part in the description, partially will be from following description
In become obvious, or recognized by the practice of the utility model.
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 full recovery system of multiinjector waste heat of the utility model one embodiment；
Fig. 2 is the A-A water of radiation waste pot in the full recovery system of multiinjector waste heat according to the utility model one embodiment
Plane 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.
In the one aspect of the utility model, the utility model proposes a kind of full recovery systems of multiinjector waste heat.According to
The embodiments of the present invention, with reference to Fig. 1, which includes the useless pot 300 of gasification furnace 100, cyclone dust collectors 200 and convection current.
One embodiment according to the present utility model, with reference to Fig. 1, gasification furnace 100 includes 11, main burners of shell
12, at least two technique nozzles 13, radiation waste pot 14 and deslagging pond 15, wherein vaporizer 10, vaporizer 10 are formed in shell 11
It is inside provided with the first water-cooling wall 16, the bottom crimp of shell 11 forms vaporizer slag notch 101, and main burner 12 is arranged in shell
The center of 11 roofs, main burner 12 are suitable for spraying fine coal, oxygen and steam or water-coal-slurry and oxygen, work to vaporizer 10
Skill nozzle 13 is located on 11 roof of shell and neighbouring main burner 12 is arranged, technique nozzle 13 be suitable for spraying to vaporizer 10 coal dust,
Oxygen and steam or water-coal-slurry and oxygen.Inventors have found that by be provided on the roof of gasification furnace main burner and
At least two technique nozzles can spray fine coal, oxygen and steam into vaporizer using main burner and technique nozzle simultaneously, from
And the mixed effect for the indoor percussion flow material that gasifies can be significantly improved so that coal dust can full combustion gasification, mention
High carbon conversions.
Specific embodiment according to the present utility model is provided with fire rod in main burner 12, suitable for burning into vaporizer 10
It penetrates fine coal, oxygen and steam and lights a fire；At least two technique nozzles 13 are centered on main burner 12 and uniform in the circumferential
Distribution.Thus, it is possible to preferably be atomized to fine coal, the efficiency of carbon con version of fine coal is improved.
Specific embodiment according to the present utility model, technique nozzle 13 and main burner 12 are arranged in α angle, and α angle is 10-
45 degree of angles, as shown in fig. 1.Inventors have found that making material be sufficiently mixed and then further increase by the way that the angle is arranged
The efficiency of carbon con version of fine coal.If the well-mixed effect of material is not achieved in angle too small, weak angle is excessive, can wash away gasification furnace
Body causes to corrode, influences the service life of gasification furnace to gasification furnace body.
Further embodiment according to the present utility model, with reference to Fig. 1, radiation waste pot 14 is connected with the bottom end of vaporizer 10,
And radiation waste pot 14 includes the second water-cooling wall 17 and water-cooling screen group 18.
A specific example according to the present utility model, with reference to Fig. 1, the second water-cooling wall 17 is located in radiation waste pot 14 and limits
Synthesis gas down going channel 19 is made, and the upper end of synthesis gas down going channel 19 is connected with slag notch 101.Specifically, gasification furnace
The high-temperature crude synthesis gas inside obtained exchanges heat through being advanced into radiation waste pot under slag notch, to realize returning for crude synthesis gas sensible heat
It receives.
Another specific embodiment according to the present utility model, with reference to Fig. 1 and 2, water-cooling screen group 18 includes multiple water-cooling screens
181, multiple water-cooling screens 181 are located in synthesis gas down going channel 19 and, each water cooling circumferentially distributed along synthesis gas down going channel 19
Screen 181 is extended from the second water-cooling wall 17 to 19 central axis direction of synthesis gas down going channel.Obviously, the utility model by
Setting includes the water-cooling screen group of multiple water-cooling screens in the synthesis gas down going channel that second water-cooling wall is formed, and more common water-cooling wall is set
It sets and significantly improves heat exchange area.Specifically, multiple water-cooling screens 181 can be uniformly distributed, and then heat exchange uniformity can be improved
With the structural stability of radiation waste pot 14.
In addition, the number of water-cooling screen 181 can be 8-24, it specifically can be big according to space in synthesis gas down going channel 19
Small appropriate increase and decrease.But the number of water-cooling screen 181 is also unsuitable excessive or very few, if very few can wasting space reduction heat-transfer surface
Product, and then Exposure degree low efficiency；Synthesis gas down going channel 19 can be made into if excessive to be excessively narrow, and then may be made
At fouling and slagging, blocking radiation waste pot, equipment operation is seriously affected.
Specific embodiment according to the present utility model, inventor in order to avoid in the second water-cooling wall 17 space size to water cooling
The several setting of screen 181 influences, inventors have found that as shown in Fig. 2, the angle β between each adjacent two water-cooling screen 181 is set
It is set to 15-45 degree, and then can be arranged with the number of more convenient determining water-cooling screen 181.And by the way that above-mentioned angular range is arranged
The distribution density that water-cooling screen 181 can also effectively be kept, makes water-cooling screen group 18 reach maximum heat exchange area and best heat transfer effect.
In addition, inventor also found, the angle 15-45 degree between each adjacent two water-cooling screen 181 is made slag can also to be avoided to block
And wall built-up, and then heat exchange efficiency is improved, save cost.
Specific embodiment according to the present utility model, each water-cooling screen 181 have 6-15 root water cooling tube.It is possible thereby to effectively
Improve heat exchange area.And the water pipe radical of water-cooling screen 181 can also be according to from the second water-cooling wall 17 to synthesis gas down going channel
The width that 19 center positions extend does not cause slag blocking, wall built-up and has subject to certain operating space.
Specific embodiment according to the present utility model, as shown in Fig. 2, water-cooling screen 181 and the second water-cooling wall 17 pass through fin
It is connected, the width L of water-cooling screen 181 is the 1/9-1/4 of 19 radius R of synthesis gas down going channel.It is possible thereby to guaranteeing maximum heat exchange
While area, fouling and slagging, blocking radiation waste pot channel not will cause.
Another embodiment according to the present utility model, with reference to Fig. 1, the lower header 171 and each water of the second water-cooling wall 17
The lower header 182 of cold screen 181 is connected and is connected with the cooling water inlet pipe 183 for passing through 14 lower part of radiation waste pot；Second water cooling
The upper collecting chamber 172 of wall 17 and the upper collecting chamber 184 of each water-cooling screen 181 are connected and go out with the cooling water for passing through 14 top of radiation waste pot
Water pipe 185 is connected.
Another embodiment according to the present utility model, with reference to Fig. 1, deslagging pond 15 be arranged in the lower section of radiation waste pot 14 and
It is connected with the bottom end of radiation waste pot 14, the side wall in deslagging pond 15 is equipped with syngas outlet 102, and the bottom in deslagging pond 15 has deslagging
Mouth 103.Specifically, the synthesis gas after pot heat exchange of giving up via radiation is discharged from synthesis gas down going channel, entrained portion in synthesis gas
Point lime-ash falls under gravity to deslagging pond, the synthesis gas after heat exchange in deslagging pond liquid level with the syngas outlet of upper side wall
Discharge.
Another embodiment according to the present utility model is equipped with third water-cooling wall 21 in cyclone dust collectors 200 with reference to Fig. 1,
And cyclone dust collectors 200 have gas outlet 202 and ash discharging hole 203 after crude synthesis gas import 201, dedusting, crude synthesis gas import
201 are connected with syngas outlet 102, and the synthesis gas for being suitable for be discharged through deslagging pond side wall syngas outlet carries out whirlwind point
From.Inventors have found that by arranging that the Exposure degree efficiency of synthesis gas not only can be improved in water-cooling wall in cyclone dust collectors, and
And the service life of cyclone dust collectors can be improved, while after cyclone dust collectors are handled, flying dust quilt entrained by crude synthesis gas
Separation reduces abrasion of the ash particle to the useless pot of subsequent convection current, and improves the quality of synthesis gas.
Another embodiment according to the present utility model, with reference to Fig. 1, convection current is given up, and pot 300 is interior to be equipped with water cooling tube 31, and right
Flowing useless pot 300 has gas import 301, syngas outlet 302 and ash hole 303 after dedusting, after dedusting after gas import 301 and dedusting
Gas outlet 202 is connected, and is suitable for further exchanging heat to the synthesis gas after cyclone dust collectors dust-collecting and heat exchanging, realizes synthesis gas sensible heat
Abundant recycling.The water cooling tube being arranged in pot specifically, convection current is given up is snakelike water cooling tube.
According to the full recovery system of multiinjector waste heat of the utility model embodiment by being provided on the roof of gasification furnace
One main burner and at least two technique nozzles, can simultaneously using burn main mouth and technique nozzle sprayed into vaporizer fine coal,
Oxygen and steam or water-coal-slurry and oxygen improve material mixed effect so as to significantly improve the indoor percussion flow of gasification,
So that coal dust can full combustion gasification, improve efficiency of carbon con version.Radiation waste pot is set below gasification furnace simultaneously, makes to bring about the desired sensation
Change the high-temperature synthesis gas that room obtains to be directly entered in radiation waste pot, and the synthesis gas downlink that water-cooling wall limits in radiation waste pot
The water-cooling screen group being made of multiple water-cooling screens is set in channel, increases heat exchange area, is returned to significantly improve synthesis gas sensible heat
It produces effects rate, the syngas outlet that the synthesis gas after heat exchange is set on the side wall of deslagging pond is supplied to water-cooling wall cyclone dust collectors
Middle progress cyclonic separation processing, so that flying dust entrained by crude synthesis gas is separated, and reduces ash particle to subsequent convection current
The abrasion of useless pot, while the water-cooling wall in cyclone dust collectors can further exchange heat to synthesis gas, the conjunction after last dedusting
It is resupplied in the useless pot of convection current at gas and carries out recuperation of heat.It as a result, can be while improving the efficiency of carbon con version of fine coal using the system
Realize the abundant recycling of synthesis gas sensible heat.
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
It states and is necessarily directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be with
It can be combined in any suitable manner in any one or more of the embodiments or examples.In addition, without conflicting with each other, this field
Technical staff can by the feature of different embodiments or examples described in this specification and different embodiments or examples into
Row 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 (9)
1. a kind of full recovery system of multiinjector waste heat characterized by comprising
Gasification furnace, the gasification furnace include:
Shell, the shell is interior to form vaporizer, is provided with the first water-cooling wall, the bottom crimp of the shell in the vaporizer
Form vaporizer slag notch；
The center of the housing top wall is arranged in one main burner, the main burner, and the main burner is suitable for the gas
Change room injection fine coal, oxygen and steam or water-coal-slurry and oxygen；
At least two technique nozzles, the technique nozzle is located in the housing top wall and the neighbouring main burner is arranged, described
Technique nozzle is suitable for vaporizer injection coal dust, oxygen and steam or water-coal-slurry and oxygen；
Radiation waste pot, the radiation waste pot are connected with the bottom end of the vaporizer, and the radiation waste pot includes:
Second water-cooling wall, second water-cooling wall are arranged in the radiation waste pot, and second water-cooling wall is formed under synthesis gas
Row of channels；
Water-cooling screen group, the water-cooling screen group include multiple water-cooling screens, and the multiple water-cooling screen is located at the synthesis gas down going channel
Interior and circumferentially distributed, each water-cooling screen is from second water-cooling wall to the synthesis gas down going channel central axis direction
Extend；
Wherein, the lower header of the lower header of second water-cooling wall and each water-cooling screen be connected and with pass through the radiation waste
The cooling water inlet pipe of pot lower part is connected；
The upper collecting chamber of the upper collecting chamber of second water-cooling wall and each water-cooling screen be connected and with pass through the radiation waste pot on
The cooling water outlet pipe in portion is connected,
Deslagging pond, the deslagging pond are located at the lower section of the radiation waste pot and are connected with radiation waste the bottom of a pan end, the deslagging
The side wall in pond is equipped with syngas outlet, and the deslagging bottom of pond portion has slag-drip opening；
Cyclone dust collectors, the cyclone dust collectors are interior to be equipped with third water-cooling wall, and the cyclone dust collectors have crude synthesis gas
Syngas outlet and ash discharging hole after import, dedusting, the crude synthesis gas import are connected with the syngas outlet；
Convection current is given up pot, and the convection current, which is given up, is equipped with water cooling tube in pot, and the convection current cookware that gives up has synthesis gas import after dedusting, closes
At gas outlet and ash hole, gas import is connected with syngas outlet after the dedusting after the dedusting.
2. the full recovery system of multiinjector waste heat according to claim 1, which is characterized in that be arranged a little in the main burner
Lighted torch has ignition function.
3. the full recovery system of multiinjector waste heat according to claim 2, which is characterized in that at least two technique nozzles
It is uniformly distributed centered on the main burner and in the circumferential.
4. the full recovery system of multiinjector waste heat according to claim 3, which is characterized in that the technique nozzle and the master
Nozzle is arranged in 10-45 degree angle.
5. the full recovery system of multiinjector waste heat according to claim 1, which is characterized in that the water-cooling screen is 8-24.
6. the full recovery system of multiinjector waste heat according to claim 1 or 5, which is characterized in that water described in each adjacent two
Angle between cold screen is 15-45 degree.
7. the full recovery system of multiinjector waste heat according to claim 6, which is characterized in that each water-cooling screen has 6-
15 water cooling tubes.
8. the full recovery system of multiinjector waste heat according to claim 1, which is characterized in that the water-cooling screen and described second
Water-cooling wall is connected by fin, and the width of the water-cooling screen is the 1/9-1/4 of the synthesis gas down going channel radius.
9. the full recovery system of multiinjector waste heat according to claim 1, which is characterized in that be arranged in the useless pot of the convection current
Water cooling tube is snakelike water cooling tube.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821906067.1U CN209383714U (en) | 2018-11-19 | 2018-11-19 | The full recovery system of multiinjector waste heat |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821906067.1U CN209383714U (en) | 2018-11-19 | 2018-11-19 | The full recovery system of multiinjector waste heat |
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| CN209383714U true CN209383714U (en) | 2019-09-13 |
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| CN201821906067.1U Expired - Fee Related CN209383714U (en) | 2018-11-19 | 2018-11-19 | The full recovery system of multiinjector waste heat |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109504451A (en) * | 2018-11-19 | 2019-03-22 | 清华大学山西清洁能源研究院 | The full recovery system of multiinjector waste heat |
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2018
- 2018-11-19 CN CN201821906067.1U patent/CN209383714U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109504451A (en) * | 2018-11-19 | 2019-03-22 | 清华大学山西清洁能源研究院 | The full recovery system of multiinjector waste heat |
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