CN107747732B - Boiler fluidized bed slag cooler - Google Patents
Boiler fluidized bed slag cooler Download PDFInfo
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- CN107747732B CN107747732B CN201710911220.3A CN201710911220A CN107747732B CN 107747732 B CN107747732 B CN 107747732B CN 201710911220 A CN201710911220 A CN 201710911220A CN 107747732 B CN107747732 B CN 107747732B
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- 239000002893 slag Substances 0.000 title claims abstract description 62
- 238000001816 cooling Methods 0.000 claims abstract description 102
- 239000002245 particle Substances 0.000 claims abstract description 25
- 239000011148 porous material Substances 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000004744 fabric Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 4
- 238000011084 recovery Methods 0.000 abstract description 3
- 239000002956 ash Substances 0.000 description 66
- 230000000694 effects Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000010882 bottom ash Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004064 recycling Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000010884 boiler slag Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000004503 fine granule Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
- F23C10/24—Devices for removal of material from the bed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
- F23L15/04—Arrangements of recuperators
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The present invention provides a kind of boiler fluidized bed slag coolers, including sorting bin and cooling storehouse, slag feed pipe and bulky grain scum pipe are provided on sorting bin, the height of slag feed pipe in the vertical direction is higher than bulky grain scum pipe, orifice-plate type air distribution plate is also tiltedly installed in sorting bin, slag feed pipe is corresponding with the higher-end of orifice-plate type air distribution plate, and bulky grain scum pipe is corresponding with the lower end of orifice-plate type air distribution plate, sorting air compartment is additionally provided in sorting bin, sorting air compartment is for supplying fluidized wind into sorting bin；Cooling storehouse is connected with sorting bin by intercommunicating pore, and cooling equipment is provided in cooling storehouse, backwind tube and little particle scum pipe are provided in cooling storehouse.It applies the technical scheme of the present invention, can effectively solve the problems, such as that boiler fluidized bed slag cooler is difficult to the heat recovery and utilization to bulky grain in high-temperature ash in the prior art.
Description
Technical field
The present invention relates to boiler ash cooling technology fields, in particular to a kind of boiler fluidized bed slag cooler.
Background technique
In circulating fluidized bed boiler reducing energy consumption, bottom ash heat recovery is an important content, is especially being burnt
In the case where gangue, bottom ash amount is very big, and bottom ash sensible heat loss is up to 1% or more.
Currently, large circulating fluidized bed boiler bottom ash heat reclaim unit generally uses fluidized bed slag cooler and drum slag cooling
Device.Compared to roller slag cooler, fluidized bed slag cooler power output is big, effectively recycles bottom ash heat, can reduce consumption of standard coal for power generation about 2g/
KWh, and fine grained can be recycled, have the characteristics that optimize bed material particle diameter distribution in furnace, be more suitable large-size circulating fluidized bed
Boiler energy-saving transformation.
When fluidized bed slag cooler operates normally, the high-temperature ash being discharged from burner hearth enter the sorting bin of fluidized bed slag cooler into
The sorting of row large or fine granule, fine grained is carried along into cooling storehouse by fluidized wind and further cools down, and bulky grain lime-ash is from sorting bin bottom
Portion's bulky grain scum pipe is expelled directly out.Since bulky grain lime-ash fluidizing performance is poor, heat transfer intensity is poor, is discharged from sorting bin big
Particle ash temperature is still at 300 DEG C or more.In the case where boiler combustion colm, the ratio of boiler bottom slag shared by slag is up to
25%, bottom ash difficulty of transportation and energy dissipation are caused, safe operation of the boiler is influenced when serious.
For the high problem of bulky grain lime-ash deslagging temperature, a kind of slag cooler is proposed in the prior art, in selection storehouse
Bulky grain cooling storehouse is arranged in bottom, the horizontal water cooling tube bank of stagger arrangement is arranged in bulky grain cooling storehouse, it is ensured that the deslagging of bulky grain
Temperature, but structure is complex, and the bulky grain heat that water cooling tube band is walked is difficult to be recycled by boiler system.
Summary of the invention
The main purpose of the present invention is to provide a kind of boiler fluidized bed slag coolers, are fluidized with solving boiler in the prior art
Bed slag cooler is difficult to in high-temperature ash the problem of the heat recovery and utilization of bulky grain.
To achieve the goals above, the present invention provides a kind of boiler fluidized bed slag cooler, including sorting bin and cooling storehouse,
Slag feed pipe and bulky grain scum pipe are provided on sorting bin, the height of slag feed pipe in the vertical direction is higher than bulky grain scum pipe,
Orifice-plate type air distribution plate is also tiltedly installed in sorting bin, slag feed pipe is corresponding with the higher-end of orifice-plate type air distribution plate, bulky grain row
Slag pipe is corresponding with the lower end of orifice-plate type air distribution plate, and sorting air compartment is additionally provided in sorting bin, and sorting air compartment is used for sorting
Fluidized wind is supplied in storehouse；Cooling storehouse is connected with sorting bin by intercommunicating pore, and cooling equipment is provided in cooling storehouse, is set in cooling storehouse
It is equipped with backwind tube and little particle scum pipe.
Further, orifice-plate type air distribution plate is multiple, and multiple orifice-plate type air distribution plates are spaced along the vertical direction in sorting bin
It is arranged, the orifice-plate type air distribution plate positioned at eminence in two adjacent orifice-plate type air distribution plates and the orifice-plate type air distribution plate positioned at lower
Inclined direction on the contrary, be located at eminence orifice-plate type air distribution plate lower end be located at lower orifice-plate type air distribution plate higher-end
It is corresponding.
Further, mud hole is offered at the lower end of orifice-plate type air distribution plate, is located at most in multiple orifice-plate type air distribution plates
The mud hole of the orifice-plate type air distribution plate of lower is connected with bulky grain scum pipe.
Further, the angle that multiple orifice-plate type air distribution plates are inclined relative to horizontal is equal.
Further, the angle that multiple orifice-plate type air distribution plates are inclined relative to horizontal is 6 °~15 °.
Further, orifice-plate type air distribution plate is two, including the first orifice-plate type air distribution plate and the second orifice-plate type air distribution plate, the
The higher-end of one orifice-plate type air distribution plate is corresponding with slag feed pipe, lower end and the bulky grain scum pipe phase of the second orifice-plate type air distribution plate
It is corresponding.
Further, the lower section of orifice-plate type air distribution plate is arranged in sorting air compartment, and orifice-plate type air distribution plate is arranged in intercommunicating pore
Top.
Further, multiple through-holes are offered on orifice-plate type air distribution plate, through-hole is in truncated cone-shaped, and the diameter of the bottom surface of through-hole is big
Diameter in the top surface of through-hole.
Further, the diameter of the bottom surface of through-hole is 1.5 times~2 times of diameter of the top surface of through-hole.
Further, multiple through-holes are in multiple rows of distribution, sequence between adjacent two exhausting hole.
Further, the cooling air compartment that equipment includes water cooling tube bank and is arranged in below water cooling tube bank, cooling air compartment are cooled down
Hood-type grid plate is provided between water cooling tube bank.
Further, cooling storehouse is multiple, cold including adjacent and the setting that is connected the first cooling storehouse and the second cooling storehouse
But equipment is also multiple, including the first cooling equipment and the second cooling equipment, the first cooling equipment are arranged in the first cooling storehouse,
Second cooling equipment is arranged in the second cooling storehouse, and the first cooling storehouse is connected by intercommunicating pore with sorting bin, backwind tube and small
Particle scum pipe is arranged in the second cooling storehouse.
Further, sorting bin is disposed adjacent with the first cooling storehouse and the second cooling storehouse, sorting bin, the first cooling storehouse and
It is separated between two cooling storehouses by partition wall.
It applies the technical scheme of the present invention, lime-ash is passed through into sorting bin by slag feed pipe, lime-ash falls in orifice-plate type cloth wind
The higher-end of plate.As sorting air compartment supplies fluidized wind into sorting bin, lime-ash along the orifice-plate type air distribution plate being obliquely installed by
Gradually fall.Due to the setting of orifice-plate type air distribution plate, the bulky grain in lime-ash can be made gradually to fall on bulky grain scum pipe down, extended
Bulky grain in the lime-ash residence time in sorting bin.In the process, bulky grain lime-ash is in the effect of fluidized wind drag force and oneself
It is migrated under body gravity to position lower, fluidized wind can carry out more adequately heat exchange with bulky grain lime-ash, take away big
The heat of grain lime-ash, and the air blowing of little particle lime-ash is taken away.Then, the fluidized wind rich in heat and little particle lime-ash can be along even
Through-hole enters cooling storehouse, and the little particle lime-ash in air-flow is cooled after equipment gradually cools down and is discharged through little particle scum pipe, is rich in
The fluidized wind of heat passes through backwind tube again and enters hearth combustion system, to guarantee the heat of bulky grain lime-ash recycling all by pot
Furnace system utilizes, and reaches apparent energy-saving effect.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The Figure of description for constituting a part of the invention is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic top plan view of the embodiment of boiler fluidized bed slag cooler according to the present invention；
Fig. 2 shows the schematic diagram of the section structure at the A-A of the boiler fluidized bed slag cooler of Fig. 1；
Fig. 3 shows the schematic diagram of the section structure at the B-B of the boiler fluidized bed slag cooler of Fig. 1；
Fig. 4 shows the schematic diagram of the section structure at the C-C of the boiler fluidized bed slag cooler of Fig. 1；
Fig. 5 shows the schematic diagram of the section structure at the D-D of the boiler fluidized bed slag cooler of Fig. 4；
Fig. 6 shows the schematic diagram of the section structure at the E-E of the boiler fluidized bed slag cooler of Fig. 4.
Wherein, the above drawings include the following reference numerals:
10, sorting bin；11, slag feed pipe；12, bulky grain scum pipe；13, orifice-plate type air distribution plate；131, mud hole；132, lead to
Hole；14, air compartment is sorted；15, intercommunicating pore；20, cooling storehouse；21, backwind tube；22, little particle scum pipe；23, water cooling is restrained；24,
Cooling air compartment；25, hood-type grid plate；30, partition wall.
Specific embodiment
It should be noted that in the absence of conflict, the feature in embodiment and embodiment in the present invention can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Term be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein.In addition, term " includes " and " tool
Have " and their any deformation, it is intended that cover it is non-exclusive include, for example, containing a series of steps or units
Process, method, system, product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include without clear
Other step or units listing to Chu or intrinsic for these process, methods, product or equipment.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Fig. 1 shows the top view of the embodiment of boiler fluidized bed slag cooler of the invention, and Fig. 2 and Fig. 4 are respectively illustrated
The cooling storehouse 20 and sorting bin 10 of boiler fluidized bed slag cooler.As shown in figure 4, being provided with slag feed pipe 11 and big on sorting bin 10
Grain scum pipe 12, the height of slag feed pipe 11 in the vertical direction are higher than bulky grain scum pipe 12.It is also obliquely installed in sorting bin 10
Abacus formula air distribution plate 13, slag feed pipe 11 is corresponding with the higher-end of orifice-plate type air distribution plate 13, bulky grain scum pipe 12 and orifice plate
The lower end of formula air distribution plate 13 is corresponding.Sorting air compartment 14 is additionally provided in sorting bin 10, sorting air compartment 14 is used for sorting bin
Fluidized wind is supplied in 10.Cooling storehouse 20 is connected with sorting bin 10 by intercommunicating pore 15.As shown in Fig. 2, being provided in cooling storehouse 20
Equipment is cooled down, is provided with backwind tube 21 and little particle scum pipe 22 in cooling storehouse 20.
Using the technical solution of the present embodiment, lime-ash is passed through into sorting bin 10 by slag feed pipe 11, lime-ash falls in orifice plate
The higher-end of formula air distribution plate 13.As sorting air compartment 14 supplies fluidized wind into sorting bin 10, lime-ash is along the hole being obliquely installed
Board-like air distribution plate 13 gradually falls.Due to the setting of orifice-plate type air distribution plate 13, the bulky grain in lime-ash can be made gradually to fall on down greatly
Particle scum pipe 12 extends the residence time in sorting bin 10 of the bulky grain in lime-ash.In the process, bulky grain lime-ash
It is migrated under the effect of fluidized wind drag force and self gravitation effect to position lower, fluidized wind can carry out more with bulky grain lime-ash
Adequately heat exchange takes away the heat of bulky grain lime-ash, and the air blowing of little particle lime-ash is taken away.Then, heat and little particle are rich in
The fluidized wind of lime-ash can enter cooling storehouse 20 along intercommunicating pore 15, after the cooled equipment of little particle lime-ash in air-flow gradually cools down
It is discharged through little particle scum pipe 22, the fluidized wind rich in heat passes through backwind tube 21 again and enters hearth combustion system, to guarantee
The heat of bulky grain lime-ash recycling is all utilized by boiler system, reaches apparent energy-saving effect.
As an alternative embodiment, orifice-plate type air distribution plate 13 be it is multiple, multiple orifice-plate type air distribution plates 13 are sorting
Interval is arranged along the vertical direction in storehouse 10, the orifice-plate type air distribution plate 13 positioned at eminence in two adjacent orifice-plate type air distribution plates 13
Inclined direction with the orifice-plate type air distribution plate 13 for being located at lower is on the contrary, be located at lower end and the position of the orifice-plate type air distribution plate 13 of eminence
It is corresponding in the higher-end of the orifice-plate type air distribution plate 13 of lower.In this way, bulky grain lime-ash can be allowed in multiple orifice-plate type air distribution plates
It gradually turns back in 13 decline, further extends bulky grain lime-ash residence time in sorting bin 10, make fluidized wind more abundant
Ground and bulky grain lime-ash exchange heat, and make full use of the heat of bulky grain lime-ash.Preferably, two neighboring orifice-plate type air distribution plate 13 is most
Small spacing is in the range of 200~400mm.
As shown in Figure 5 and Figure 6, as an alternative embodiment, being offered at the lower end of orifice-plate type air distribution plate 13
Mud hole 131.In use, bulky grain lime-ash is fallen to from the mud hole 131 for the orifice-plate type air distribution plate 13 for being located at eminence positioned at low
The higher-end of the orifice-plate type air distribution plate 13 at place continues traveling downwardly, with this come extend that bulky grain lime-ash stops in sorting bin 10 when
Between.Positioned at the mud hole 131 and bulky grain scum pipe 12 of the orifice-plate type air distribution plate 13 of lowest part in multiple orifice-plate type air distribution plates 13
It is connected.After bulky grain lime-ash is fallen on the orifice-plate type air distribution plate 13 of lowest part, finally it is discharged from scum pipe 12.As
Other optional embodiments, the lower end of orifice-plate type air distribution plate 13 can also not connect with shell, when bulky grain lime-ash
The higher-end of lower layer's orifice-plate type air distribution plate 13 is directly fallen to when rolling down to the lower end of orifice-plate type air distribution plate 13.
As an alternative embodiment, the angle that multiple orifice-plate type air distribution plates 13 are inclined relative to horizontal is equal,
Fluidized wind can be cooperated by bulky grain lime-ash uniform velocity downlink in this way.Preferably, multiple orifice-plate type air distribution plates 13 are relative to level
The inclined angle in face is 6 °~15 °.By theoretical model verifying repeatedly, find orifice-plate type air distribution plate 13 with respect to the horizontal plane
Inclined angle is arranged in the range of 6 °~15 °, can both guarantee bulky grain lime-ash can orifice-plate type air distribution plate 13 more
It smoothly tumbles, and can guarantee that bulky grain lime-ash can be in bulky grain lime-ash stay longer.Preferably, on sorting bin 10
Portion's fluidising air velocity is 2~8m/s, can play heat transfer effect well and the effect for promoting bulky grain lime-ash to beat downwards.
As shown in figure 4, in the present embodiment, orifice-plate type air distribution plate 13 is two, including 13 He of the first orifice-plate type air distribution plate
The higher-end of second orifice-plate type air distribution plate 13, the first orifice-plate type air distribution plate 13 is corresponding with slag feed pipe 11, the second orifice-plate type cloth wind
The lower end of plate 13 is corresponding with bulky grain scum pipe 12.It is verified through theoretical model, by the two orifice-plate type air distribution plates 13, just
Bulky grain lime-ash and fluidized wind time of contact can be significantly extended, bulky grain lime-ash can be cooled to 150 DEG C or less.Specifically
, the number of the setting of orifice-plate type air distribution plate 13 can need the selection of adaptability according to heat exchange.
As a kind of more preferably embodiment, as shown in figure 4, orifice-plate type air distribution plate 13 is arranged in sorting air compartment 14
The top of orifice-plate type air distribution plate 13 is arranged in lower section, intercommunicating pore 15.The sorting air compartment 14 being arranged below blows fluidized wind upward
Out, active force can be generated to bulky grain lime-ash through orifice-plate type air distribution plate 13, facilitates bulky grain lime-ash in orifice-plate type cloth wind
It is tumbled downwards on plate 13.The fluidized wind blown out upward simultaneously additionally aids the little particle lime-ash taken away in lime-ash.
As shown in Figure 4, Figure 5 and Figure 6, in the present embodiment, multiple through-holes 132 are offered on orifice-plate type air distribution plate 13, are led to
Hole 132 is in truncated cone-shaped, and the diameter of the bottom surface of through-hole 132 is greater than the diameter of the top surface of through-hole 132.In this way, bottom surface is relatively large in diameter
Through-hole 132, can significantly more efficient reception fluidized wind, while improving the wind speed that fluidized wind is blown out from through-hole 132, help to mention
Active force of the height to bulky grain lime-ash.In the actual use process, bulky grain ash can be blown afloat by the fluidized wind of through-hole 132
Slag, the whereabouts for allowing bulky grain lime-ash to beat on orifice-plate type air distribution plate 13.It is verified by theoretical model, by the bottom of through-hole 132
When the diameter in face is set as 1.5 times~2 times of diameter of the top surface of through-hole 132, fluidized wind can be effectively improved to bulky grain ash
The active force of slag.Optionally, multiple through-holes 132 are in multiple rows of distribution, sequence between adjacent two exhausting hole 132.
As shown in Fig. 2, in the technical scheme of this embodiment, cooling equipment includes water cooling tube bank 23 and is arranged in water cooling tube
The cooling air compartment 24 of 23 lower section of beam, is provided with hood-type grid plate 25 between cooling air compartment 24 and water cooling tube bank 23.Pass through water cooling
Tube bank 23 can cool down the little particle lime-ash entered in cooling storehouse 20, and the wind that cooling air compartment 24 is blown out facilitates small
Grain lime-ash comes into full contact with water cooling tube bank 23.Preferably, in the technical scheme of this embodiment, hood-type grid plate 25 is bell jar
Hood-type grid plate 25.
As shown in Fig. 2, in the technical scheme of this embodiment, cooling storehouse 20 is the multiple including adjacent and setting that is connected
The first cooling storehouse and the second cooling storehouse.Cooling equipment is also multiple, including the first cooling equipment and the second cooling equipment, first
Cooling equipment is arranged in the first cooling storehouse, and the second cooling equipment is arranged in the second cooling storehouse.First cooling storehouse passes through connection
Hole 15 is connected with sorting bin 10, and backwind tube 21 and little particle scum pipe 22 are arranged in the second cooling storehouse.Using the present embodiment
Technical solution, the little particle lime-ash in fluidized wind can be cooled down step by step by multiple cooling storehouses 20, to be fully cooled
Little particle lime-ash finally allows little particle lime-ash to be discharged from little particle scum pipe 22.
As shown in Figure 3, Figure 5 and Figure 6, in the technical scheme of this embodiment, sorting bin 10 and the first cooling storehouse and second
Cooling storehouse is disposed adjacent, and is separated between sorting bin 10, the first cooling storehouse and the second cooling storehouse by partition wall 30.By by sorting bin
10 are disposed adjacent with the first cooling storehouse and the second cooling storehouse, and space of the sorting bin 10 in boiler fluidized bed slag cooler can be improved
Accounting, and then residence time of the bulky grain lime-ash in sorting bin 10 is improved, improve the heat utilization ratio of bulky grain lime-ash.
It can be seen from the above description that the above embodiments of the present invention realized the following chievements: compared to existing
There is technology, the boiler fluidized bed slag cooler sorting bin of proposition sorts chamber structure using reciprocal, incline structure orifice-plate type air distribution plate
Simply, cloth wind resistance is smaller, and fan energy consumption reduces.Orifice-plate type air distribution plate is unobstructed to the flowing of bulky grain lime-ash, bulky grain ash
Slag deslagging in sorting bin is smooth, and bulky grain lime-ash is avoided to accumulate in sorting bin and coking, it is significant extend bulky grain lime-ash and
Fluidized wind time of contact in sorting bin guarantees slag cooling effect.Fluidized wind after heat exchange all returns to hearth combustion system,
So that the heat of bulky grain lime-ash recycling fully enters boiler system utilization, energy-saving effect is significant.Especially in boiler slag removal amount
Greatly, under the extreme operating condition of deslagging coarse size, energy-saving effect is more preferable.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
It is not limited the scope of the invention up to formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each portion shown in attached drawing
The size divided not is to draw according to actual proportionate relationship.For technology, side known to person of ordinary skill in the relevant
Method and equipment may be not discussed in detail, but in the appropriate case, and technology, method and apparatus should be considered as authorizing specification
A part.In shown here and discussion all examples, any occurrence should be construed as merely illustratively, rather than
As limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar label and word
Mother indicates similar terms in following attached drawing, therefore, once it is defined in a certain Xiang Yi attached drawing, then in subsequent attached drawing
It does not need that it is further discussed.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In the description of the present invention, it is to be understood that, the noun of locality such as " front, rear, top, and bottom, left and right ", " it is laterally, vertical,
Vertically, orientation or positional relationship indicated by level " and " top, bottom " etc. is normally based on orientation or position shown in the drawings and closes
System, is merely for convenience of description of the present invention and simplification of the description, in the absence of explanation to the contrary, these nouns of locality do not indicate that
It must have a particular orientation or be constructed and operated in a specific orientation with the device or element for implying signified, therefore cannot manage
Solution is limiting the scope of the invention；The noun of locality " inside and outside " refers to inside and outside the profile relative to each component itself.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of boiler fluidized bed slag cooler characterized by comprising
Sorting bin (10) is provided with slag feed pipe (11) and bulky grain scum pipe (12), the slag feed pipe on the sorting bin (10)
(11) height in the vertical direction is higher than the bulky grain scum pipe (12), is also tiltedly installed with hole in the sorting bin (10)
Board-like air distribution plate (13), the slag feed pipe (11) is corresponding with the higher-end of the orifice-plate type air distribution plate (13), the bulky grain
Scum pipe (12) is corresponding with the lower end of the orifice-plate type air distribution plate (13), is additionally provided with sorting wind in the sorting bin (10)
Room (14), the sorting air compartment (14) are used to supply fluidized wind into the sorting bin (10)；
Cooling storehouse (20) is connected by intercommunicating pore (15) with the sorting bin (10), is provided with cooling in the cooling storehouse (20)
Equipment is provided with backwind tube (21) and little particle scum pipe (22) on the cooling storehouse (20)；The orifice-plate type air distribution plate (13)
To be multiple, the interval setting along the vertical direction in the sorting bin (10) of multiple orifice-plate type air distribution plates (13), adjacent two
The orifice-plate type air distribution plate (13) positioned at eminence in a orifice-plate type air distribution plate (13) and the orifice plate positioned at lower
The inclined direction of formula air distribution plate (13) is on the contrary, being located at the lower end of the orifice-plate type air distribution plate (13) of eminence and being located at lower
The higher-end of the orifice-plate type air distribution plate (13) is corresponding.
2. boiler fluidized bed slag cooler according to claim 1, which is characterized in that the orifice-plate type air distribution plate (13) compared with
Lower end offers mud hole (131), and the orifice-plate type cloth wind of lowest part is located in multiple orifice-plate type air distribution plates (13)
The mud hole (131) of plate (13) is connected with the bulky grain scum pipe (12).
3. boiler fluidized bed slag cooler according to claim 2, which is characterized in that multiple orifice-plate type air distribution plates (13)
The angle being inclined relative to horizontal is equal.
4. boiler fluidized bed slag cooler according to claim 3, which is characterized in that multiple orifice-plate type air distribution plates (13)
The angle being inclined relative to horizontal is 6 °~15 °.
5. boiler fluidized bed slag cooler according to claim 3, which is characterized in that the orifice-plate type air distribution plate (13) is two
It is a, including the first orifice-plate type air distribution plate (13) and the second orifice-plate type air distribution plate (13), the first orifice-plate type air distribution plate (13)
Higher-end is corresponding with the slag feed pipe (11), the lower end of the second orifice-plate type air distribution plate (13) and the bulky grain deslagging
It is corresponding to manage (12).
6. boiler fluidized bed slag cooler according to claim 1, which is characterized in that the sorting air compartment (14) is arranged in institute
The lower section of orifice-plate type air distribution plate (13) is stated, the intercommunicating pore (15) is arranged in the top of the orifice-plate type air distribution plate (13).
7. boiler fluidized bed slag cooler according to claim 1, which is characterized in that opened on the orifice-plate type air distribution plate (13)
Equipped with multiple through-holes (132), the through-hole (132) is in truncated cone-shaped, and the diameter of the bottom surface of the through-hole (132) is greater than the through-hole
(132) diameter of top surface.
8. boiler fluidized bed slag cooler according to claim 7, which is characterized in that the bottom surface of the through-hole (132) it is straight
Diameter is 1.5 times~2 times of diameter of the top surface of the through-hole (132).
9. boiler fluidized bed slag cooler according to claim 7, which is characterized in that multiple through-holes (132) are in multiple rows of
It is distributed, sequence between the adjacent two rows through-hole (132).
10. boiler fluidized bed slag cooler according to claim 1, which is characterized in that the cooling equipment includes water cooling tube
The cooling air compartment (24) of beam (23) and setting below water cooling tube bank (23), the cooling air compartment (24) and the water cooling tube
Hood-type grid plate (25) are provided between beam (23).
11. boiler fluidized bed slag cooler according to claim 1, which is characterized in that the cooling storehouse (20) is multiple, packet
Include adjacent and the setting that is connected the first cooling storehouse and the second cooling storehouse, the cooling equipment is also multiple, including first is cooling
Equipment and the second cooling equipment, the described first cooling equipment are arranged in first cooling storehouse, and the described second cooling equipment is set
It sets in second cooling storehouse, first cooling storehouse is connected by the intercommunicating pore (15) with the sorting bin (10),
The backwind tube (21) and the little particle scum pipe (22) are arranged in second cooling storehouse.
12. boiler fluidized bed slag cooler according to claim 11, which is characterized in that the sorting bin (10) and described the
One cooling storehouse and second cooling storehouse are disposed adjacent, the sorting bin (10), first cooling storehouse and second cooling
It is separated between storehouse by partition wall (30).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710911220.3A CN107747732B (en) | 2017-09-29 | 2017-09-29 | Boiler fluidized bed slag cooler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710911220.3A CN107747732B (en) | 2017-09-29 | 2017-09-29 | Boiler fluidized bed slag cooler |
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| CN107747732A CN107747732A (en) | 2018-03-02 |
| CN107747732B true CN107747732B (en) | 2019-10-15 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043896A (en) * | 2019-04-28 | 2019-07-23 | 翁琦 | A kind of circulating fluidized bed boiler coke button removal slag cooler |
| CN110715290B (en) * | 2019-10-09 | 2024-08-23 | 江苏新方圆电气设备制造有限公司 | Double-sorting type fluidized bed slag cooler |
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|---|---|---|---|---|
| GB2108004A (en) * | 1981-10-26 | 1983-05-11 | Foster Wheeler Energy Corp | Sampling device for a fluidized bed |
| EP0503917A1 (en) * | 1991-03-14 | 1992-09-16 | Foster Wheeler Energy Corporation | Fluidized bed reactor and method for operating same utilizing an improved particle removal system |
| CN1156501A (en) * | 1994-08-17 | 1997-08-06 | 福斯特韦勒能源股份公司 | Fluidized bed reactor and method of operation thereof |
| CN2849485Y (en) * | 2005-11-17 | 2006-12-20 | 邓学志 | Screened fluidized bed slag cooler |
| CN101943403A (en) * | 2010-09-30 | 2011-01-12 | 重庆大学 | Double-separation type fluidized bed slag cooler |
| CN202993186U (en) * | 2012-11-03 | 2013-06-12 | 沈阳科翔电力环保设备有限公司 | Air water slag cooler of large circulating fluidized bed boiler |
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2017
- 2017-09-29 CN CN201710911220.3A patent/CN107747732B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2108004A (en) * | 1981-10-26 | 1983-05-11 | Foster Wheeler Energy Corp | Sampling device for a fluidized bed |
| EP0503917A1 (en) * | 1991-03-14 | 1992-09-16 | Foster Wheeler Energy Corporation | Fluidized bed reactor and method for operating same utilizing an improved particle removal system |
| CN1156501A (en) * | 1994-08-17 | 1997-08-06 | 福斯特韦勒能源股份公司 | Fluidized bed reactor and method of operation thereof |
| CN2849485Y (en) * | 2005-11-17 | 2006-12-20 | 邓学志 | Screened fluidized bed slag cooler |
| CN101943403A (en) * | 2010-09-30 | 2011-01-12 | 重庆大学 | Double-separation type fluidized bed slag cooler |
| CN202993186U (en) * | 2012-11-03 | 2013-06-12 | 沈阳科翔电力环保设备有限公司 | Air water slag cooler of large circulating fluidized bed boiler |
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| Publication number | Publication date |
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| CN107747732A (en) | 2018-03-02 |
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