CN110486740A - A kind of steam of bagasse boiler blows slag hearth row - Google Patents
A kind of steam of bagasse boiler blows slag hearth row Download PDFInfo
- Publication number
- CN110486740A CN110486740A CN201910875690.8A CN201910875690A CN110486740A CN 110486740 A CN110486740 A CN 110486740A CN 201910875690 A CN201910875690 A CN 201910875690A CN 110486740 A CN110486740 A CN 110486740A
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- China
- Prior art keywords
- fire grate
- grate segment
- nozzle bore
- nozzle
- steam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 241000609240 Ambelania acida Species 0.000 title claims abstract description 30
- 239000010905 bagasse Substances 0.000 title claims abstract description 30
- 239000002893 slag Substances 0.000 title claims abstract description 27
- 238000009434 installation Methods 0.000 claims abstract description 35
- 239000007921 spray Substances 0.000 claims description 40
- XEGGRYVFLWGFHI-UHFFFAOYSA-N bendiocarb Chemical compound CNC(=O)OC1=CC=CC2=C1OC(C)(C)O2 XEGGRYVFLWGFHI-UHFFFAOYSA-N 0.000 claims description 15
- 230000007704 transition Effects 0.000 claims description 10
- 238000012216 screening Methods 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- 238000010025 steaming Methods 0.000 claims description 2
- 238000004939 coking Methods 0.000 abstract description 7
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 9
- 238000005266 casting Methods 0.000 description 4
- 238000007790 scraping Methods 0.000 description 4
- 238000007493 shaping process Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 241001282153 Scopelogadus mizolepis Species 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 210000000038 chest Anatomy 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23H—GRATES; CLEANING OR RAKING GRATES
- F23H15/00—Cleaning arrangements for grates; Moving fuel along grates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Coke Industry (AREA)
- Incineration Of Waste (AREA)
Abstract
A kind of steam of bagasse boiler blows slag hearth row, uniformly offers multiple up-small and down-big air holes vertically on the top plate of fire grate segment；Fire grate segment be divided into band nozzle bore it is more/less porous fire grate segment and without nozzle bore it is more/less porous fire grate segment；The air holes percent opening of less porous fire grate segment is 3.25%；The air holes percent opening of porous fire grate segment is 5.24%；Multi-disc fire grate segment is uniformly mounted on the backbar of furnace grate support and forms fire grate, every two column are without one column band nozzle bore fire grate segment of installation behind nozzle bore fire grate segment from front to back, preceding four column are made of multi-disc without nozzle bore less porous fire grate segment without nozzle bore fire grate segment, first row band nozzle bore fire grate segment is made of multi-disc band nozzle bore less porous fire grate segment, remaining column is formed by multi-disc without the porous fire grate segment of nozzle bore and with the porous fire grate segment of nozzle bore respectively without nozzle bore fire grate segment and with nozzle bore fire grate segment, and the distance of adjacent fire grate segment is 4 millimeters；The nozzle that steam can be sprayed is installed with nozzle bore fire grate segment.This fire grate is not easy coking and blocking.
Description
Technical field
The present invention relates to the technical field of boiler plant, the steam of specifically a kind of bagasse boiler blows slag hearth row.
Background technique
Bagasse is the waste generated during sugar refining technology, but is also valuable fuel energy.If made
It is directly abandoned for industrial refuse, not only wastes the energy, but also pollute the environment；So at present all using bagasse as pot
Furnace fuel is finally not only rationally utilized the energy, also protects society so that the steam that boiler generates is used for power supply and steam supply
Environment.
However, the moisture content of bagasse is high, calorific capacity is low, the ash melting point for causing its burning to generate is lower, this ash
Slag easily blocks the air port on fire grate, is on the one hand not easy to bagasse full combustion, on the other hand causes stoker surface coking, product
Heat finally affects the service life of fire grate.And one is conventional big scale fire grate, this furnaces for the fire grate of existing bagasse boiler
Not only structure is complicated, at high cost by row, and the stoker surface easily coking, accumulated heat cause its service life shorter, thus by
Gradually eliminated by market.Another kind is water-cooled furnace grate, although this fire grate can be recycled by water reduces its surface temperature,
To extend the service life of itself, but the temperature in burner hearth can be also reduced, bagasse is dry not exclusively, burns to cause
The insufficient, chain effects such as unburned carbon in flue dust is higher, and then cause a large amount of flying dust and not sufficiently combusted bagasse coking at this
On grate surface, and each air port is blocked, finally causes the thermal efficiency of boiler very low.
Summary of the invention
The object of the present invention is to provide a kind of steam of bagasse boiler to blow slag hearth row, which is not easy coking and blocking.
In order to achieve the object of the present invention, the technical solution taken are as follows:
A kind of steam of bagasse boiler blows slag hearth row, including fire grate segment, fire grate segment are made of the top plate and side plate being square, side plate
Mutually it is enclosed in top plate bottom surrounding；Fire grate segment integrally casting shaping；It is uniformly offered vertically on top plate multiple up-small and down-big
Air holes and a bolt hole；Fire grate segment is divided into band nozzle bore fire grate segment and without nozzle bore fire grate segment, and band nozzle bore fire grate segment is again
It is divided into the porous fire grate segment of band nozzle bore and with nozzle bore less porous fire grate segment, is divided into again without nozzle bore fire grate segment more without nozzle bore
Hole fire grate segment and without nozzle bore less porous fire grate segment；With nozzle bore less porous fire grate segment and without the air holes of nozzle bore less porous fire grate segment
Percent opening is 3.25%；It is 5.24% with the porous fire grate segment of nozzle bore and without the air holes percent opening of the porous fire grate segment of nozzle bore；It is more
Piece fire grate segment is uniformly mounted on the backbar of furnace grate support by the bolt in bolt hole and forms fire grate, from stokehold side toward furnace after
Side direction, every two column are without one column band nozzle bore fire grate segment of installation behind nozzle bore fire grate segment, and preceding four column are without nozzle bore fire grate
Piece is made of multi-disc without nozzle bore less porous fire grate segment, and first row band nozzle bore fire grate segment is by multi-disc band nozzle bore less porous fire grate segment
Composition, remaining column without nozzle bore fire grate segment and with nozzle bore fire grate segment respectively by multi-disc without the porous fire grate segment of nozzle bore and
The porous fire grate segment composition of band nozzle bore, the distance of adjacent fire grate segment is 4 millimeters, and it is swollen that the gap between fire grate segment is able to satisfy fire grate segment
Swollen requirement, while guaranteeing fire grate air leak rate of air curtain in allowed limits.Nozzle is offered in the middle part of top plate with nozzle bore fire grate segment
Mounting hole, nozzle mounting hole are equipped with the nozzle that can spray steam, and each nozzle is blowed to consistent and is blown along grate surface.Fire grate
Upper percent opening meets the requirement of bagasse burning.The fire grate segment of the small percent opening of stokehold mining, remaining is using the furnace compared with large opening rate
Screening, to meet the requirement of different zones burning, slag will not just be blown because of steam by, which being arranged so, influences the stabilization of furnace chamber inner combustion
Property.
The fire grate is low early and high after, and gradient is 8 °.
The nozzle includes nozzle head, and the nozzle head is in like semi-cylindrical；In the nozzle head like semi-cylindrical
Side is provided with flat spout；The lower part of nozzle head is provided with square body limit body, and square body limit body lower part is provided with
Locking screw is tatooed, locking screw tatoo lower part be provided with steam pipe connection body；The diameter that square body limits body is less than the width of nozzle head
Degree, the diameter tatooed greater than locking screw；Square body limit body, locking screw tatoo connect with steam pipe in body and are both provided with steam and lead to
Road, steam channel extends through from nozzle head from the bottom of steam pipe connection body, and and spout connection.The length of square body limit body
Less than or equal to the depth of fire grate spray head installation squared counter bore, it is gap that square body, which limits body and fire grate spray head installation squared counter bore,
Nozzle is inserted into spray head installation squared counter bore by cooperation, when installation above fire grate, and nozzle head is stuck on grate surface, square column
Body limit body is extend into spray head installation squared counter bore, will finally by the spring washer and nut being mounted on locking screw
Nozzle is fixed on fire grate；Steam pipe connection body is connect with steam pipeline；Using this spline structure, nozzle can consolidate peace
It is not easy to shift on grate surface.
The steam channel is circular steam channel, and aperture is less than the width of spout, steam channel and spout
Two sides are gradual transition connection.
The lower part joint face of the spout and steam channel is horizontal, the connection of the top of spout and steam channel towards
Upper inclination 3-5 degree angle is arc transition with steam channel intersection towards steam channel laterally upper inclination.Spout and steam channel
It using in this way, steam can be spread from spout sprays, and sprays strong, blows that slag effective area is wide, and multiple Nozzle combinations use,
It is not easy that there are dead angles.
It is described in all being polished smooth like the both ends of nozzle head of semi-cylindrical and the corner angle of two sides, and be in like semi-cylindrical
Nozzle head be not provided with one end of spout and be arranged to hemisphere face.Since the fire grate in boiler furnace needs manually to scrape once in a while rake, spray
Mouth is not easy clamping stagnation when in this way, manually scraping rake.
Fire grate segment must be checked before installation, it is determined whether the defects of whether there is or not serious corrosions, crackle.Outer dimension is answered
Meet drawing requirement, allowable error should meet regulation.First steam jet, gasket, nut and fire grate segment are combined before installation
Installation.Preparatory soldering furnace is ranked bit slice, after trial assembly fire grate segment no problem, then installs remaining fire grate locating plate, then installation is all
Fire grate segment.Fire grate locking member is installed simultaneously.When fire grate segment is installed, it is necessary to assure the expansion clearance between fire grate segment.Fire grate installs
Bi Hou must not have any sundries to block in the aperture and expansion clearance on fire grate, and fire grate irregularity degree, diagonal line deviation are respectively less than
5mm.It steam jet head should be towards stokehold.
The steam of this bagasse boiler blows slag hearth row and has the advantage that
1, this fire grate structure arrangement is ingenious, using saturated vapor Purge methods, is not only avoided that fire grate blocks coking, moreover it is possible to make furnace
Bagasse more full combustion in thorax.
2, the nozzle head lower part for the nozzle that this fire grate uses is provided with square body limit body, and square body limits the setting of body lower part
There is locking screw to tatoo, locking screw tatoo lower part be provided with steam pipe connection body；The diameter that square body limits body is less than nozzle head
Width, the diameter tatooed greater than locking screw；Square body limit body, locking screw tatoo to connect with steam pipe and are both provided with steam in body
Channel, steam channel extends through from nozzle head from the bottom of steam pipe connection body, and and spout connection；The length of square body limit body
Degree is less than or equal to the depth of fire grate spray head installation squared counter bore, between square body limit body and fire grate spray head installation squared counter bore are
Nozzle is inserted into spray head installation squared counter bore by gap cooperation, when installation above fire grate, and nozzle head is stuck on grate surface, side
Cylinder limit body is extend into spray head installation squared counter bore, finally by the spring washer and nut being mounted on locking screw
Nozzle is fixed on fire grate；Steam pipe connection body is connect with steam pipeline；Using this spline structure, nozzle can be consolidated
It is mounted on and is not easy to shift on grate surface.
3, the nozzle head for the nozzle that this fire grate uses is in like semi-cylindrical；It is arranged in the side of the nozzle head like semi-cylindrical
There is a flat spout, steam channel is circular steam channel, and aperture is less than the width of spout, steam channel and spout
Two sides are that gradual transition is connected to, and the lower part joint face of spout and steam channel is horizontal, and the top of spout and steam channel connects
Junction tilts 3-5 degree angle upwards, is arc transition with steam channel intersection towards steam channel laterally upper inclination.Spout and steaming
Vapour channel uses in this way, steam can be spread from spout sprays, and sprays strong, and it is wide to blow slag effective area, multiple nozzle sets
It closes and uses, be not easy that there are dead angles.
4, the nozzle that this fire grate uses is in all to polish smooth like the both ends of nozzle head of semi-cylindrical and the corner angle of two sides,
Clamping stagnation is not easy when manually scraping rake fire grate.
Detailed description of the invention
Fig. 1 is that the steam of this bagasse boiler blows the arrangement schematic diagram of slag hearth row；
Fig. 2 is the structural schematic diagram with the porous fire grate segment of nozzle bore；
Fig. 3 is the A-A schematic diagram of Fig. 2；
Fig. 4 is the B-B schematic diagram of Fig. 2；
Fig. 5 is the structural schematic diagram without the porous fire grate segment of nozzle bore；
Fig. 6 is the structural schematic diagram with nozzle bore less porous fire grate segment；
Fig. 7 is the structural schematic diagram without nozzle bore less porous fire grate segment；
Fig. 8 is the sectional view of nozzle mounting hole；
Fig. 9 is the top view of Fig. 8；
Figure 10 is the sectional view of bolt hole；
Figure 11 is the sectional view of air holes；
Figure 12 is the structural schematic diagram that steam blows slag nozzle；
Figure 13 is the top view of Figure 12；
Figure 14 is the left view of Figure 12；
Figure 15 is the schematic diagram that steam blows that slag nozzle is mounted on fire grate segment；
The component names of serial number in figure are as follows:
1, the band porous fire grate segment of nozzle bore, 2, without the porous fire grate segment of nozzle bore, 3, without nozzle bore less porous fire grate segment, 4, band spray
Nozzle aperture less porous fire grate segment, 5, top plate, 6, side plate, 7, air holes, 8, nozzle mounting hole, 9, bolt hole, 10, air-permeating hole, 11, nozzle
Head, 12, spout, 13, square body limit body, 14, locking screw tatoo, 15, steam channel, 16, steam pipe connect body, 17, nut,
18, spring washer.
Specific embodiment
This technology is described in order to clearer, with reference to the accompanying drawings and embodiments further specifically to this technology
It is bright.
Embodiment 1
A kind of steam of bagasse boiler blows slag hearth row, including fire grate segment, fire grate segment are made of the top plate 5 and side plate 7 being square, side
Plate 7 is mutually enclosed in 5 bottom surrounding of top plate；Fire grate segment integrally casting shaping；Uniformly offered vertically on top plate 5 it is multiple it is it is small under
Big air holes 8 and a bolt hole 10；Fire grate segment is divided into band nozzle bore fire grate segment and without nozzle bore fire grate segment, band nozzle bore furnace
Screening is divided into the porous fire grate segment 1 of band nozzle bore and again with nozzle bore less porous fire grate segment 4, without nozzle bore fire grate segment be divided into again without
The porous fire grate segment 2 of nozzle bore and without nozzle bore less porous fire grate segment 3；With nozzle bore less porous fire grate segment 4 and without nozzle bore less porous
8 percent opening of air holes of fire grate segment 3 is 3.25%；With the porous fire grate segment 1 of nozzle bore and without the air holes 8 of the porous fire grate segment 2 of nozzle bore
Percent opening is 5.24%；Multi-disc fire grate segment is uniformly mounted on the backbar of furnace grate support by the bolt in bolt hole 10 and is formed
Fire grate, from stokehold side toward furnace rear direction, every two column are preceding without one column band nozzle bore fire grate segment of installation behind nozzle bore fire grate segment
Four column are made of multi-disc without nozzle bore less porous fire grate segment 3 without nozzle bore fire grate segment, and first row band nozzle bore fire grate segment is by more
Piece band nozzle bore less porous fire grate segment 4 form, remaining column without nozzle bore fire grate segment and with nozzle bore fire grate segment respectively by multi-disc
It is formed without the porous fire grate segment 2 of nozzle bore and with the porous fire grate segment 1 of nozzle bore, the distance of adjacent fire grate segment is 4 millimeters；Band nozzle
Nozzle mounting hole 9 is offered in the middle part of the top plate 5 of hole fire grate segment, nozzle mounting hole 9 is equipped with the nozzle that can spray steam, each spray
Mouth is blowed to consistent and is blown along grate surface.
The fire grate is low early and high after, and gradient is 8 °.
The nozzle includes nozzle head 12, and the nozzle head 12 is in like semi-cylindrical；In the nozzle like semi-cylindrical
First 12 side is provided with flat spout 13；The lower part of nozzle head 12 is provided with square body limit body 14, square body limit
14 lower part of body is provided with locking screw and tatoos 15, and locking screw 15 lower parts of tatooing are provided with steam pipe connection body 17；Square body limits body
14 diameter is less than the width of nozzle head 12, tatoos 15 diameter greater than locking screw；Square body limit body 14, locking screw tatoo 15
It is connected with steam pipe and is both provided with steam channel 16 in body 17, steam channel 16 extends through spray from the bottom of steam pipe connection body 17
At mouth 12, and it is connected to spout 13.The length that square body limits body 14 is less than or equal to fire grate spray head installation squared counter bore
Depth, it is clearance fit that square body, which limits body 14 and fire grate spray head installation squared counter bore, by nozzle from the top of fire grate when installation
It is inserted into spray head installation squared counter bore, nozzle head 12 is stuck on grate surface, and square body limit body 14 extend into spray head installation side
In shape counterbore, nozzle is fixed on fire grate finally by tatoo spring washer on 15 and nut of locking screw is mounted on；It will steam
Steam pipe connection body 17 is connect with steam pipeline.
Embodiment 2
A kind of steam of bagasse boiler blows slag hearth row, including fire grate segment, fire grate segment are made of the top plate 5 and side plate 7 being square, side
Plate 7 is mutually enclosed in 5 bottom surrounding of top plate；Fire grate segment integrally casting shaping；Uniformly offered vertically on top plate 5 it is multiple it is it is small under
Big air holes 8 and a bolt hole 10；Fire grate segment is divided into band nozzle bore fire grate segment and without nozzle bore fire grate segment, band nozzle bore furnace
Screening is divided into the porous fire grate segment 1 of band nozzle bore and again with nozzle bore less porous fire grate segment 4, without nozzle bore fire grate segment be divided into again without
The porous fire grate segment 2 of nozzle bore and without nozzle bore less porous fire grate segment 3；With nozzle bore less porous fire grate segment 4 and without nozzle bore less porous
8 percent opening of air holes of fire grate segment 3 is 3.25%；With the porous fire grate segment 1 of nozzle bore and without the air holes 8 of the porous fire grate segment 2 of nozzle bore
Percent opening is 5.24%；Multi-disc fire grate segment is uniformly mounted on the backbar of furnace grate support by the bolt in bolt hole 10 and is formed
Fire grate, from stokehold side toward furnace rear direction, every two column are preceding without one column band nozzle bore fire grate segment of installation behind nozzle bore fire grate segment
Four column are made of multi-disc without nozzle bore less porous fire grate segment 3 without nozzle bore fire grate segment, and first row band nozzle bore fire grate segment is by more
Piece band nozzle bore less porous fire grate segment 4 form, remaining column without nozzle bore fire grate segment and with nozzle bore fire grate segment respectively by multi-disc
It is formed without the porous fire grate segment 2 of nozzle bore and with the porous fire grate segment 1 of nozzle bore, the distance of adjacent fire grate segment is 4 millimeters；Band nozzle
Nozzle mounting hole 9 is offered in the middle part of the top plate 5 of hole fire grate segment, nozzle mounting hole 9 is equipped with the nozzle that can spray steam, each spray
Mouth is blowed to consistent and is blown along grate surface.
The fire grate is low early and high after, and gradient is 8 °.
The nozzle includes nozzle head 12, and the nozzle head 12 is in like semi-cylindrical；In the nozzle like semi-cylindrical
First 12 side is provided with flat spout 13；The lower part of nozzle head 12 is provided with square body limit body 14, square body limit
14 lower part of body is provided with locking screw and tatoos 15, and locking screw 15 lower parts of tatooing are provided with steam pipe connection body 17；Square body limits body
14 diameter is less than the width of nozzle head 12, tatoos 15 diameter greater than locking screw；Square body limit body 14, locking screw tatoo 15
It is connected with steam pipe and is both provided with steam channel 16 in body 17, steam channel 16 extends through spray from the bottom of steam pipe connection body 17
At mouth 12, and it is connected to spout 13.The length that square body limits body 14 is less than or equal to fire grate spray head installation squared counter bore
Depth, it is clearance fit that square body, which limits body 14 and fire grate spray head installation squared counter bore, by nozzle from the top of fire grate when installation
It is inserted into spray head installation squared counter bore, nozzle head 12 is stuck on grate surface, and square body limit body 14 extend into spray head installation side
In shape counterbore, nozzle is fixed on fire grate finally by tatoo spring washer on 15 and nut of locking screw is mounted on；It will steam
Steam pipe connection body 17 is connect with steam pipeline.
The steam channel 16 be circular steam channel, aperture be less than spout 13 width, steam channel 16 with
The two sides of spout 13 are gradual transition connection.
The lower part joint face of the spout 13 and steam channel 16 is horizontal, the top of spout 13 and steam channel 16
Connection tilts upwardly 3-5 degree angle, is arc transition with 16 intersection of steam channel towards steam channel laterally upper inclination.Spout
It is used with steam channel in this way, steam can spread ejection from spout, and spray effectively, blowing radiation is wide, is not easy to exist
Dead angle.
Described is in all to polish smooth like the both ends of nozzle head 12 of semi-cylindrical and the corner angle of two sides.Due to boiler furnace
Interior fire grate needs manually to scrape rake once in a while, and nozzle head is not easy clamping stagnation when in this way, manually scraping rake.
Embodiment 3
A kind of steam of bagasse boiler blows slag hearth row, including fire grate segment, fire grate segment are made of the top plate 5 and side plate 7 being square, side
Plate 7 is mutually enclosed in 5 bottom surrounding of top plate；Fire grate segment integrally casting shaping；Uniformly offered vertically on top plate 5 it is multiple it is it is small under
Big air holes 8 and a bolt hole 10；Fire grate segment is divided into band nozzle bore fire grate segment and without nozzle bore fire grate segment, band nozzle bore furnace
Screening is divided into the porous fire grate segment 1 of band nozzle bore and again with nozzle bore less porous fire grate segment 4, without nozzle bore fire grate segment be divided into again without
The porous fire grate segment 2 of nozzle bore and without nozzle bore less porous fire grate segment 3；With nozzle bore less porous fire grate segment 4 and without nozzle bore less porous
8 percent opening of air holes of fire grate segment 3 is 3.25%；With the porous fire grate segment 1 of nozzle bore and without the air holes 8 of the porous fire grate segment 2 of nozzle bore
Percent opening is 5.24%；Multi-disc fire grate segment is uniformly mounted on the backbar of furnace grate support by the bolt in bolt hole 10 and is formed
Fire grate, from stokehold side toward furnace rear direction, every two column are preceding without one column band nozzle bore fire grate segment of installation behind nozzle bore fire grate segment
Four column are made of multi-disc without nozzle bore less porous fire grate segment 3 without nozzle bore fire grate segment, and first row band nozzle bore fire grate segment is by more
Piece band nozzle bore less porous fire grate segment 4 form, remaining column without nozzle bore fire grate segment and with nozzle bore fire grate segment respectively by multi-disc
It is formed without the porous fire grate segment 2 of nozzle bore and with the porous fire grate segment 1 of nozzle bore, the distance of adjacent fire grate segment is 4 millimeters；Band nozzle
Nozzle mounting hole 9 is offered in the middle part of the top plate 5 of hole fire grate segment, nozzle mounting hole 9 is equipped with the nozzle that can spray steam, each spray
Mouth is blowed to consistent and is blown along grate surface.
In terms of 120t/h boiler, the fire grate is low early and high after, and gradient is 8 °；Fire grate width: 7600 millimeters, two sides with
The gap of furnace wall is respectively 2mm；Fire grate depth (inclined surface): 6300 millimeters, the gap of front and furnace wall is 4mm；The top plate 5
Length, width and height are respectively 376,296 and 18 millimeters, side plate 7 with a thickness of 12 millimeters, the bottom end of side plate 7 and the top surface distance of top plate 5
It is 100 millimeters；The upper aperture of up-small and down-big air holes 8 and lower aperture are respectively 8 and 14 millimeters；The top of nozzle mounting hole 9 is
51 × 51 counterbore, the depth that counterbore sinks are 10 millimeters, and lower part is the through-hole that aperture is 43；Bolt hole 10；Top be hole
The counterbore of diameter 24,10 millimeters of submergence depth, lower part is the through-hole that aperture is aperture 14.
The nozzle includes nozzle head 12, and the nozzle head 12 is in like semi-cylindrical；In the nozzle like semi-cylindrical
First 12 side is provided with flat spout 13；The lower part of nozzle head 12 is provided with square body limit body 14, square body limit
14 lower part of body is provided with locking screw and tatoos 15, and locking screw 15 lower parts of tatooing are provided with steam pipe connection body 17；Square body limits body
14 diameter is less than the width of nozzle head 12, tatoos 15 diameter greater than locking screw；Square body limit body 14, locking screw tatoo 15
It is connected with steam pipe and is both provided with steam channel 16 in body 17, steam channel 16 extends through spray from the bottom of steam pipe connection body 17
At mouth 12, and it is connected to spout 13.The length that square body limits body 14 is less than or equal to fire grate spray head installation squared counter bore
Depth, it is clearance fit that square body, which limits body 14 and fire grate spray head installation squared counter bore, by nozzle from the top of fire grate when installation
It is inserted into spray head installation squared counter bore, nozzle head 12 is stuck on grate surface, and square body limit body 14 extend into spray head installation side
In shape counterbore, nozzle is fixed on fire grate finally by tatoo spring washer on 15 and nut of locking screw is mounted on；It will steam
Steam pipe connection body 17 is connect with steam pipeline.
The steam channel 16 be circular steam channel, aperture be less than spout 13 width, steam channel 16 with
The two sides of spout 13 are gradual transition connection.
The lower part joint face of the spout 13 and steam channel 16 is horizontal, the top of spout 13 and steam channel 16
Connection tilts upwardly 3-5 degree angle, is arc transition with 16 intersection of steam channel towards steam channel laterally upper inclination.Spout
It is used with steam channel in this way, steam can spread ejection from spout, and spray effectively, blowing radiation is wide, is not easy to exist
Dead angle.
Described is in all to polish smooth like the both ends of nozzle head 12 of semi-cylindrical and the corner angle of two sides.Due to boiler furnace
Interior fire grate needs manually to scrape rake once in a while, and nozzle head is not easy clamping stagnation when in this way, manually scraping rake.
Application Example
1, this fire grate is installed in Guangxi company, 120 tons of boilers examination in Thailand sugar refinery, and using saturated vapor, operating pressure is
2.45Mpa；Required steam is directly attracted from the auxiliary steam pipe of drum, by entering vapor collection case after pressure reducing valve.Boiler continuously makes
With two squeezing seasons, the air holes of fire grate is not caused blockages, and grate surface, almost without coking, steam production is stablized, the thermal efficiency
It is high.
Above description is not the limitation to the application, and the application is also not limited to examples detailed above, those skilled in the art
Member, in the essential scope of the application, the variations, modifications, additions or substitutions made all should belong to the protection scope of the application.
Claims (10)
1. a kind of steam of bagasse boiler blows slag hearth row, including fire grate segment, fire grate segment is by the top plate (5) and side plate (7) that are square
Composition, side plate (7) are mutually enclosed in top plate (5) bottom surrounding；Multiple up-small and down-big wind are uniformly offered on top plate (5) vertically
Hole (8) and a bolt hole (10)；It is characterized by: fire grate segment is divided into band nozzle bore fire grate segment and without nozzle bore fire grate segment,
Band nozzle bore fire grate segment is divided into the band porous fire grate segment of nozzle bore (1) and again with nozzle bore less porous fire grate segment (4), without nozzle bore furnace
Screening is divided into again without the porous fire grate segment of nozzle bore (2) and without nozzle bore less porous fire grate segment (3)；Band nozzle bore less porous fire grate segment
It (4) and without air holes (8) percent opening of nozzle bore less porous fire grate segment (3) is 3.25%；With the porous fire grate segment of nozzle bore (1) and not
Air holes (8) percent opening with the porous fire grate segment of nozzle bore (2) is 5.24%；Multi-disc fire grate segment passes through the bolt in bolt hole (10)
It is uniformly mounted on the backbar of furnace grate support and forms fire grate, from stokehold side toward furnace rear direction, every two column are without nozzle bore furnace
One column band nozzle bore fire grate segment of installation behind screening, preceding four column are without nozzle bore fire grate segment by multi-disc without nozzle bore less porous fire grate
Piece (3) composition, first row band nozzle bore fire grate segment by multi-disc band nozzle bore less porous fire grate segment (4) form, remaining arrange without spray
Nozzle aperture fire grate segment and with nozzle bore fire grate segment respectively by multi-disc without the porous fire grate segment of nozzle bore (2) and with the porous fire grate of nozzle bore
Piece (1) composition, the distance of adjacent fire grate segment are 4 millimeters；Nozzle mounting hole is offered in the middle part of top plate (5) with nozzle bore fire grate segment
(9), nozzle mounting hole (9) is equipped with the nozzle that can spray steam, and each nozzle is blowed to consistent and is blown along grate surface.
2. the steam of bagasse boiler according to claim 1 blows slag hearth row, it is characterised in that: after low before the fire grate
Height, gradient are 8 °.
3. the steam of bagasse boiler according to claim 1 blows slag hearth row, it is characterised in that: the nozzle includes nozzle
Head (12), the nozzle head (12) are in like semi-cylindrical；It is provided in the side of the nozzle head (12) like semi-cylindrical flat
The spout (13) of shape；The lower part of nozzle head (12) is provided with square body limit body (14), and square body limits the setting of body (14) lower part
There is locking screw to tatoo (15), locking screw tatoo (15) lower part be provided with steam pipe connection body (17)；Square body limits body (14)
Diameter is less than the width of nozzle head (12), tatoos the diameter of (15) greater than locking screw；Square body limit body (14), locking screw are tatooed
(15) it connects with steam pipe and is both provided with steam channel (16) in body (17), steam channel (16) connects body (17) from steam pipe
Bottom extends through at nozzle head (12), and is connected to spout (13).
4. the steam of bagasse boiler according to claim 3 blows slag hearth row, it is characterised in that: the steam channel (16)
For circular steam channel, aperture is less than the width of spout (13), and the two sides of steam channel (16) and spout (13) are gradual change
Transition connection.
5. the steam of bagasse boiler according to claim 4 blows slag hearth row, it is characterised in that: the spout (13) and steaming
The lower part joint face in vapour channel (16) is horizontal, and spout (13) connect inclination 3-5 upwardly with the top of steam channel (16)
Angle is spent, is arc transition with steam channel (16) intersection towards steam channel laterally upper inclination.
6. the steam of bagasse boiler according to claim 3 blows slag hearth row, it is characterised in that: described is in like semi-cylindrical
The both ends of nozzle head (12) and the corner angle of two sides all polish smooth.
7. the steam of bagasse boiler according to claim 1 blows slag hearth row, it is characterised in that: described top plate (5) length and width
Height is respectively 376,296 and 18 millimeters, side plate (7) with a thickness of 12 millimeters, the top surfaces of the bottom end of side plate (7) and top plate (5) away from
From being 100 millimeters.
8. the steam of bagasse boiler according to claim 1 blows slag hearth row, it is characterised in that: the up-small and down-big wind
The upper aperture in hole (8) and lower aperture are respectively 8 and 14 millimeters.
9. the steam of bagasse boiler according to claim 1 blows slag hearth row, it is characterised in that: the nozzle mounting hole
(9) counterbore that top is 51 × 51, the depth of counterbore are 10 millimeters, and lower part is the through-hole that aperture is 43.
10. the steam of bagasse boiler according to claim 1 blows slag hearth row, it is characterised in that: the bolt hole (10)
Top be aperture 24 counterbore, 10 millimeters of depth, lower part be aperture be 14 through-hole.
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|---|---|---|---|
| CN201910875690.8A CN110486740B (en) | 2019-09-17 | 2019-09-17 | Steam slag blowing grate of bagasse boiler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910875690.8A CN110486740B (en) | 2019-09-17 | 2019-09-17 | Steam slag blowing grate of bagasse boiler |
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| CN110486740A true CN110486740A (en) | 2019-11-22 |
| CN110486740B CN110486740B (en) | 2024-09-24 |
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| GB616598A (en) * | 1946-09-18 | 1949-01-24 | Bolton S Superheater & Pipe Wo | Improvements in ash blowing equipment for lancashire type steam boilers |
| CN86205263U (en) * | 1986-07-16 | 1988-06-15 | 姚圣聪 | Opposite direction crisscross push grate |
| CN201041358Y (en) * | 2007-05-18 | 2008-03-26 | 钟文葵 | Steam slag-discharging nozzle |
| CN101625126A (en) * | 2009-08-07 | 2010-01-13 | 东南大学 | Bidirectional non-uniform matching air distributing water-cooled vibration grate of biomass direct-combustion boiler |
| CN201526978U (en) * | 2009-10-12 | 2010-07-14 | 四川川润股份有限公司 | Pure liquor alcohol slop boiler grate |
| CN201753929U (en) * | 2010-07-21 | 2011-03-02 | 武汉华是能源环境工程有限公司 | Pinhole grate of biomass fuel boiler |
| CN104654321A (en) * | 2014-01-29 | 2015-05-27 | 广西西江锅炉制造有限公司 | Bagasse burning boiler |
| CN204880197U (en) * | 2015-07-16 | 2015-12-16 | 自贡东方热电配套有限公司 | Steam blows sediment formula bagasse boiler |
| CN210511730U (en) * | 2019-09-17 | 2020-05-12 | 广西联源机械化工有限公司 | Steam slag blowing fire grate of bagasse boiler |
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2019
- 2019-09-17 CN CN201910875690.8A patent/CN110486740B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB616598A (en) * | 1946-09-18 | 1949-01-24 | Bolton S Superheater & Pipe Wo | Improvements in ash blowing equipment for lancashire type steam boilers |
| CN86205263U (en) * | 1986-07-16 | 1988-06-15 | 姚圣聪 | Opposite direction crisscross push grate |
| CN201041358Y (en) * | 2007-05-18 | 2008-03-26 | 钟文葵 | Steam slag-discharging nozzle |
| CN101625126A (en) * | 2009-08-07 | 2010-01-13 | 东南大学 | Bidirectional non-uniform matching air distributing water-cooled vibration grate of biomass direct-combustion boiler |
| CN201526978U (en) * | 2009-10-12 | 2010-07-14 | 四川川润股份有限公司 | Pure liquor alcohol slop boiler grate |
| CN201753929U (en) * | 2010-07-21 | 2011-03-02 | 武汉华是能源环境工程有限公司 | Pinhole grate of biomass fuel boiler |
| CN104654321A (en) * | 2014-01-29 | 2015-05-27 | 广西西江锅炉制造有限公司 | Bagasse burning boiler |
| CN204880197U (en) * | 2015-07-16 | 2015-12-16 | 自贡东方热电配套有限公司 | Steam blows sediment formula bagasse boiler |
| CN210511730U (en) * | 2019-09-17 | 2020-05-12 | 广西联源机械化工有限公司 | Steam slag blowing fire grate of bagasse boiler |
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|---|---|
| CN110486740B (en) | 2024-09-24 |
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