CN107781812A - A kind of belt type roasting machine coal gas Dual-cyclone combustor and belt type roasting machine - Google Patents
A kind of belt type roasting machine coal gas Dual-cyclone combustor and belt type roasting machine Download PDFInfo
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- CN107781812A CN107781812A CN201610756520.4A CN201610756520A CN107781812A CN 107781812 A CN107781812 A CN 107781812A CN 201610756520 A CN201610756520 A CN 201610756520A CN 107781812 A CN107781812 A CN 107781812A
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- belt type
- cyclone
- roasting machine
- type roasting
- coal gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/20—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone
- F23D14/22—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other
- F23D14/24—Non-premix gas burners, i.e. in which gaseous fuel is mixed with combustion air on arrival at the combustion zone with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other at least one of the fluids being submitted to a swirling motion
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/26—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid with provision for a retention flame
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/46—Details, e.g. noise reduction means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/36—Arrangements of heating devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
Abstract
The present invention relates to steel industry pelletizing production field, there is provided a kind of belt type roasting machine coal gas Dual-cyclone combustor and belt type roasting machine.Wherein, belt type roasting machine coal gas Dual-cyclone combustor, including fuel air pipe and burner block, fuel air pipe include import pipeline section and enlarging pipeline section；Enlarging pipeline section is separated to form interior circulation channel and outer shroud circulation road by interior isocon；The afterbody of interior circulation channel and outer shroud circulation road is respectively arranged with the different inner ring cyclones and outer shroud cyclone of eddy flow angle；Fuel air pipe is inserted in the burner block, and the air channel of First air is formed between fuel air pipe and the liner of burner block.The bispin Flow Technique of program coal gas so that high-temperature flue gas improves the safety and stability of burning by Whirl entraining and backflow, solves the problems, such as that blow-on initiation combustion device easily takes off fire and is tempered.In addition, under the high temperature conditions, gas double cyclone technique can improve efficiency of combustion and reduce NOxProduction rate.
Description
Technical field
The present invention relates to steel industry pelletizing production field, there is provided a kind of belt type roasting machine with coal gas Dual-cyclone combustor and
Belt type roasting machine.
Background technology
In recent years, developing rapidly with China's steel and iron industry, the requirement to Bf Burden rational proportion is increasingly
It is high.From the actual conditions for realizing Proper Burden Constitution of Blast Furnace and China's abundant ore source shortage, blast furnace largely uses pellet
Deng enriched ore, it is the developing direction of China's Bf Burden, while also promotes developing rapidly for China's pellet production.
Pelletizing production technique mainly has shaft furnace process, grate kiln method, three kinds of belt type roasting machine method, these three pelletizings
Production technology is with their own characteristics.
Shaft Furnace Pelletizing Process technique grows up earliest, once once have developed rapidly.Its green-ball comes in the stove of a rectangle
Carry out and complete to dry, preheat, be calcined, cooling Four processes.Although the technique of this method is simple, compact-sized, investment just
Preferably, it is poor to the adaptability of raw material but because its single stove production capacity is small, and final product quality is poor, therefore applying and sending out
Limitation certain Zhan Shangyou.Early in the 1970s, Shaft Furnace Pelletizing Process has just stagnated abroad, progressively moving towards decline.
Grate kiln is used for cement industry earliest.Nineteen sixty, this company was generalized to life by the Ai Lisi-Harmer in the U.S.
Produce iron ore pellets.This new pelletizing process has obtained rapidly the attention of world steel department, and obtains quick development.I
State, than later, only had 4 production lines in the exploitation using grate kiln technique productions acid pellet before nineteen ninety.So far,
The whole nation has more than the grate kiln method pellet production line of 28 more than t pellets of production capacity million, and total output accounts for the whole nation
Pellet output more than 60%.
Belt type roasting machine is deposited in device structure, technical process and adaptability to raw material etc. and grate kiln technique
In larger difference.The roasting overall process of belt type roasting machine pelletizing process is carried out in same equipment, and process is more complicated, and
Reciprocal effect between each operation is larger, and the stability requirement to raw material is higher.Belt type roasting machine is due to that will bear higher roasting
Burn flue-gas temperature, it is therefore desirable to using the special alloy steel that resistance to elevated temperatures is fabulous on body.
World's pelletizing production at present, belt type roasting machine pellet production capacity are 2.05 hundred million tons/year, account for world's total capacity
66.4%, chain grate-rotary kiln pellet production capacity is 80,600,000 tons/year, accounts for the 26.1% of world's total capacity, shaft furnace ball
Nodulizing production capacity is 23,000,000 tons/year, accounts for the 7.5% of the world.And the production of China's pellet rely primarily on drying grate-return
Kiln rotaring process, sub-fraction is will to suffer superseded shaft furnace process, and possesses the belt type roasting machine production line of production capacity at present
Only three, one is 2,000,000 tons of production lines of Anshan iron and steel plant, and one is 4,000,000 tons of production lines of Shoudu Iron and Steel Co capital Tang, and another is the new body of Baogang
It is 5,000,000 tons of pellet production lines, the belt type roasting machine of wherein Baogang is not yet gone into operation.It is not difficult to find out from data comparison, China's band
Formula burning machine scaled distance world average level shared in pellet production is also very big, development of the belt type roasting machine in China
It is also promising, there is wide development space.
In belt type roasting machine production process, pelletizing is laid on chassis, and high-temperature flue gas caused by combustion chamber is from combustion chamber
Enter after the discharge of end in belt type roasting machine stove, by the blower negative pressure swabbing action of pallet bottom, high-temperature flue gas is on chassis
Green-ball the thermal process such as be dried, preheat, being calcined, pelletizing relative position transfixion in whole technical process.
Burner occupies very important status in belt type roasting machine all devices.Due to belt type roasting machine operation principle
Uniqueness, burner will ensure the safety and stability that belt type roasting machine burns in low temperature blow-on, not de- fire, not return
Fire, the high combustion efficiency under high temperature normal production conditions, NOx emission is low, and combustion flame shape does not occur to burn phenomenon partially, goes out simultaneously
Mouth flue-gas temperature is evenly distributed.It may be said that whether Burner Technology is ripe to determine belt type roasting machine technology energy to a certain extent
No success.
By being found after the Searches of Patent Literature to having reported both at home and abroad, belt type roasting machine burner is directed to both at home and abroad at present
Documents and materials it is seldom, it is more to introducing for common Dual-cyclone combustor technology.But double-cyclone burning disclosed in the overwhelming majority
Device technology is air and gas double cyclone technique, i.e., air and coal gas remix after eddy flow burnt respectively；Also small part
It is air double-cyclone, coal gas not cyclone technique.
Wherein immediate patented technology is the patent that number of patent application is 201310313851.7, and it discloses a kind of big
The double combustion gas Dual-cyclone combustors of difference calorific value.The double combustion gas Dual-cyclone combustors of big difference calorific value in the patent structure are four-way
Burner, four passages are respectively high heating value blast tube, fuel gas with low heat value passage, the first air duct and second from inside to outside
Air duct.Wherein the first air duct and the second air duct share an air header, and flap valve is provided with to the in house steward
The air mass flow of one air duct and the second air duct carries out manual allocation regulation.When use single calorific value fuel gas or height
When calorific value fuel gas is used in mixed way, the sky of the first air duct and the second air duct is adjusted by adjusting air header flap valve
Throughput is distributed, and ensures that burner can provide stable air stoichiometry all the time when using different calorific value fuel gas, so that
Combustion gas and air can be sufficiently mixed during burning, stable burning.
The basic goal of the patent is the combustion gas for alloing burner to use two kinds big difference calorific value, i.e., a kind of high fever
It is worth combustion gas and a kind of fuel gas with low heat value.Because the air capacity required for the fuel gas buring of different calorific values is different, therefore just design
A kind of device that the air mass flow of two air ducts can be adjusted matches, to meet the double combustion gas of big difference calorific value
The requirement of indifference switching burning is carried out on same burner.
The obvious patented technology is not appropriate for belt type roasting machine technological requirement.Reason is as follows：
Firstth, belt type roasting machine needs to use high heating value gas heating, and fuel gas with low heat value can not meet heat demand, therefore
Belt type roasting machine can not possibly use the method for high fuel gas with low heat value blending burning in the patented technology.
Secondth, its combustion system of belt type roasting machine technique and structures shape needs to be equipped with First air and Secondary Air, once
Wind enters from burner, and Secondary Air at burner outlet by single secondary air duct vertically into depending merely on and enter from burner
The First air entered can not meet that belt type roasting machine technique is to the flow of combustion air and the requirement of temperature under normal production status.
In the blow-on stage, furnace temperature is relatively low, and now secondary air flow is zero, only provides combustion air by normal temperature First air, and furnace temperature slowly raises；
Under nominal situation, because the roasting of pelletizing needs substantial amounts of heat, therefore depend merely on First air and can not meet to require, this is often
A warm wind flow is zero, and high temperature Secondary Air provides combustion air, and Secondary Air is up to more than 10 to the coefficient of excess air of combustion gas,
Depending merely on the First air entered from burner can not meet to require.
And it is applied to the burner on belt type roasting machine in the prior art, blow-on initiation combustion device often be present and easily take off fire
And NO under tempering, and high temperature normal production conditionsxThe problem of emission index is high, efficiency of combustion is low.
The content of the invention
(1) technical problems to be solved
The purpose of the present invention is：A kind of belt type roasting machine coal gas Dual-cyclone combustor is provided, solution is deposited in the prior art
The burner being applied on belt type roasting machine blow-on initiation combustion device be present and easily take off fire and tempering, and high temperature normally gives birth to
NO under the conditions of productionxThe problem of emission index is high, efficiency of combustion is low.
(2) technical scheme
In order to solve the above-mentioned technical problem, the invention provides a kind of belt type roasting machine coal gas Dual-cyclone combustor, bag
Fuel air pipe and burner block are included, the fuel air pipe includes import pipeline section and the enlarging pipeline section away from the import pipeline section；
The interior isocon being coaxial therewith is provided with the enlarging pipeline section, circulation in formation between the interior isocon and burner core
Passage, outer shroud circulation road is formed between the enlarging pipeline section and the interior isocon；The afterbody of the interior circulation channel is provided with
Inner ring cyclone, the afterbody of the outer shroud circulation road are provided with outer shroud cyclone, and the inner ring cyclone and outer shroud rotation
The eddy flow angle for flowing device is different；The fuel air pipe is inserted in the burner block, and the fuel air pipe and the burner
The air channel for being passed through First air is formed between the liner of brick.
Preferably, the blade quantity of the inner ring cyclone is 4~8, and eddy flow angle is 20 °~30 °；The outer shroud rotation
The blade quantity for flowing device is 10~14, and eddy flow angle is 25 °~35 °.
Preferably, the eddy flow angle of the inner ring cyclone is 25 °, and the eddy flow angle of the outer shroud cyclone is 30 °.
Preferably, the exit of the enlarging pipeline section and the interior isocon is arranged to necking form.
Preferably, a cylindricality through hole for being used to insert the fuel air pipe is provided with the burner block；The burning
The adpting flange for being installed with body of heater is fixed with mouth brick.
Preferably, peep-hole is offered on the burner block and is fixed with igniter and UV probes.
Preferably, the air channel communicates with primary air intake pipe.
Preferably, the fuel air pipe is connected with gas pipe.
The present invention also provides a kind of belt type roasting machine, including above-mentioned belt type roasting machine coal gas Dual-cyclone combustor.
(3) beneficial effect
Technical scheme has advantages below：The belt type roasting machine coal gas Dual-cyclone combustor of the present invention, bag
Fuel air pipe and burner block are included, the fuel air pipe includes import pipeline section and the enlarging pipeline section away from the import pipeline section；
The interior isocon being coaxial therewith is provided with the enlarging pipeline section, circulation in formation between the interior isocon and burner core
Passage, outer shroud circulation road is formed between the enlarging pipeline section and the interior isocon；The afterbody of the interior circulation channel is provided with
Inner ring cyclone, the afterbody of the outer shroud circulation road are provided with outer shroud cyclone, and the inner ring cyclone and outer shroud rotation
The eddy flow angle for flowing device is different；The fuel air pipe is inserted in the burner block, and the fuel air pipe and the burner
The air channel for being passed through First air is formed between the liner of brick.Belt type roasting machine coal gas Dual-cyclone combustor, use are single
The bispin Flow Technique of coal gas so that high-temperature flue gas caused by burning improves the safety of burning constantly by Whirl entraining and backflow
Property and stability, burner easily takes off fire and is tempered when solving the problems, such as blow-on in the initial stage of that fire box temperature is low.In addition, in high temperature just
Under normal working condition, gas double cyclone technique can cause coal gas to be sufficiently mixed with air, improve efficiency of combustion；Also, revolve
Involving velocity caused by stream causes high temperature gases recirculating to flame root, the oxygen concentration of combustion zone is reduced, so as to reduce
NOxProduction rate.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the belt type roasting machine coal gas Dual-cyclone combustor of embodiment；
In figure：1st, primary air intake pipe；2nd, gas pipe；3rd, outer shroud circulation road；4th, interior circulation channel；5th, inner ring cyclone；
6th, outer shroud cyclone；7th, air channel；8th, burner block；9th, body of heater；10th, adpting flange；11st, igniter and UV probes；12nd, peep-hole；
13rd, burner core.
Embodiment
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following examples are used for
Illustrate the present invention, but can not be used for limiting the scope of the present invention.
In the description of the invention, it is necessary to explanation, term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show that the device of meaning or element there must be specific orientation, with specific azimuth configuration and operation, thus it is it is not intended that right
The limitation of the present invention.In addition, term " first ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or dark
Show relative importance.
In the description of the invention, it is necessary to which explanation, unless otherwise clearly defined and limited, term " connected ", " connects
Connect " it should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or it is integrally connected；It can be machine
Tool connects or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary.For this area
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
Without loss of generality, only illustrated below by taking the eddy flow of coal gas as an example, it is to be understood that the belt roasting of the application
Machine is not limited with the fuel being passed through in coal gas Dual-cyclone combustor by coal gas.
Refer to Fig. 1, the belt type roasting machine coal gas Dual-cyclone combustor of the present embodiment, including fuel air pipe and burner
Brick 8.Wherein, fuel air pipe includes import pipeline section and the enlarging pipeline section away from the import pipeline section.It is provided with enlarging pipeline section
The interior isocon being coaxial therewith, so as to circulation channel 4 in being formed between interior isocon and burner core, and in enlarging pipeline section and
Outer shroud circulation road 3 is formed between interior isocon.The afterbody of interior circulation channel 4 is provided with inner ring cyclone 5, outer shroud circulation road 3
Afterbody be provided with outer shroud cyclone 6, and the eddy flow angle of inner ring cyclone 5 and outer shroud cyclone 6 is different.Fuel air pipe is inserted
Enter in the burner block 8, and the air channel 7 for being passed through First air is formed between the liner of fuel air pipe and burner block 8.
In the present embodiment, fuel air pipe is connected with gas pipe 2 (cross section that gas pipe 2 is illustrate only in figure), so as to
Coal gas is entered in fuel air pipe by gas pipe 2, and has respectively entered interior circulation channel 4 and outer shroud under the effect of itself pressure
In circulation road 3.After coal gas enters in interior circulation channel 4 and outer shroud circulation road 3, respectively by inner ring cyclone 5 and outer shroud eddy flow
The cyclonic action of device 6, sprayed from burner nozzle (namely exit of enlarging pipeline section and interior isocon) in the form of eddy flow.Its
In, the eddy flow angle of inner ring cyclone 5 and outer shroud cyclone 6 is specially arranged to different angle, it is therefore intended that strengthens two strands
Mixing between coal gas and outside air, be advantageous to ablaze safety and stability.
Belt type roasting machine coal gas Dual-cyclone combustor, using the bispin Flow Technique of Single gas so that burning produces
High-temperature flue gas constantly by Whirl entraining and backflow, improve the safety and stability of burning, solve blow-on burner hearth at initial stage
Burner easily takes off the problem of fire and tempering when temperature is low.In addition, under high temperature normal production conditions, gas double cyclone technique can
To cause coal gas to be sufficiently mixed with air, efficiency of combustion is improved；Also, Involving velocity caused by eddy flow causes high-temperature flue gas to return
Flame root is flow to, reduces the oxygen concentration of combustion zone, so as to reduce NOxProduction rate.
And it is it is emphasized that the belt type roasting machine coal gas Dual-cyclone combustor in the present embodiment, caused by it
Swirl flame.And swirl flame compares direct current flame, the length of flame is shorter, and position is more stable, avoids due to length of flame mistake
Phenomenon is burnt caused by length partially, improves the service life of combustion chamber refractory material.Also, swirl flame burning is more violent, completeer
Entirely, combustor exit flue-gas temperature is more evenly distributed, and improves the uniformity of pellet roasting quality.
It should be noted that above-mentioned " enlarging pipeline section " refers to the pipeline section part in Fig. 1 on the left of fuel air pipe.Obviously,
The cross sectional dimensions of enlarging pipeline section is more than the cross sectional dimensions of import pipeline section, so as to set interior shunt in enlarging pipeline section
Pipe, in order to be shunted to coal gas.Also, enlarging pipeline section herein should be understood to include the changeover portion in figure, and transition
Section refers to the pipeline section that fuel air pipe intermediate cross-section changes.
Further, it is arranged to necking form at the left side outlet of enlarging pipeline section and interior isocon, so as to improve coal gas spray
Go out speed, strengthen the disturbance of coal gas and combustion air and mix, to reach the purpose of safety and stability burning.In addition, enlarging pipeline section
It is preferably concordant with the left of interior isocon or approximate concordant, so as to ensure what is flowed out from interior circulation channel 4 and outer shroud circulation road 3
The mixed effect of coal gas.
It is found through experiments that, the blade quantity of inner ring cyclone 5 is 4~8, eddy flow angle is 20 °~30 °, described outer
When the blade quantity of ring cyclone 6 is 10~14, eddy flow angle is 25 °~35 °, belt type roasting machine coal gas double-cyclone fires
Burner can obtain preferable combustion efficiency.Also, when the eddy flow angle of inner ring cyclone 5 is 25 ° and the eddy flow of outer shroud cyclone 6
When angle is 30 °, belt type roasting machine coal gas Dual-cyclone combustor can obtain best combustion efficiency.
It should be noted that after the blade quantity and eddy flow angle-determining of inner ring cyclone 5 and outer shroud cyclone 6,
The drag characteristic of interior circulation channel 4 and outer shroud circulation road 3 also just determines therewith, into interior circulation channel 4 and outer shroud circulation road 3
Gas volume also determines therewith, and the distribution of the gas volume of interior circulation channel 4 and outer shroud circulation road 3 is unadjustable.Certainly, in order to realize
Regulation to gas volume distribution, can use the adjustable cyclone of blade angle.
On the basis of the above, air channel 7 is connected with primary air intake pipe 1, so that air enters from primary air intake pipe 1
Into air channel 7, and burnt behind burner nozzle position and two bursts of eddy flow coal gas mixing.Wherein, fuel air pipe and institute
State and air channel 7 formed between the liner of burner block 8, airduct is set without extra, so as to it is simple in construction, be easy to safeguard.
Wherein, primary air intake pipe 1 is used for the First air for being passed through direct current, and two strands of coals of the First air of direct current and above-mentioned eddy flow
Gas mixing can obtain preferable combustion efficiency.
Please with further reference to Fig. 1, a cylindricality through hole is provided with burner block 8, so as to which fuel air pipe is set
In the cylindricality through hole, and air channel 7 is formed between the inner surface of fuel air pipe and cylindricality through hole.Also, for fixation
Burner block 8, the adpting flange 10 for being installed with body of heater 9 is preferably fixed with burner block 8.In addition, burner block 8 is offered and spied on
Hole 12 is simultaneously fixed with igniter and UV probes 11.
The present embodiment also provides a kind of belt type roasting machine, including above-mentioned belt type roasting machine coal gas Dual-cyclone combustor.
Embodiment of above is merely to illustrate the present invention, rather than limitation of the present invention.Although with reference to embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that, to technical scheme carry out it is various combination,
Modification or equivalent substitution, without departure from the spirit and scope of technical solution of the present invention, the right that all should cover in the present invention is wanted
Ask among scope.
Claims (9)
1. a kind of belt type roasting machine coal gas Dual-cyclone combustor, it is characterised in that described including fuel air pipe and burner block
Fuel air pipe includes import pipeline section and the enlarging pipeline section away from the import pipeline section；It is provided with the enlarging pipeline section same with it
The interior isocon of axle, formed between the interior isocon and burner core in circulation channel, the enlarging pipeline section and described interior
Outer shroud circulation road is formed between isocon；The afterbody of the interior circulation channel is provided with inner ring cyclone, the outer shroud circulation road
Afterbody be provided with outer shroud cyclone, and the eddy flow angle of the inner ring cyclone and the outer shroud cyclone is different；The combustion
Expect that air inlet pipe is inserted in the burner block, and formed between the fuel air pipe and the liner of the burner block for being passed through one
The air channel of secondary wind.
2. belt type roasting machine according to claim 1 coal gas Dual-cyclone combustor, it is characterised in that the inner ring eddy flow
The blade quantity of device is 4~8, and eddy flow angle is 20 °~30 °；The blade quantity of the outer shroud cyclone is 10~14, rotation
Flow angle is 25 °~35 °.
3. belt type roasting machine according to claim 2 coal gas Dual-cyclone combustor, it is characterised in that the inner ring eddy flow
The eddy flow angle of device is 25 °, and the eddy flow angle of the outer shroud cyclone is 30 °.
4. belt type roasting machine according to claim 1 coal gas Dual-cyclone combustor, it is characterised in that the enlarging pipeline section
It is arranged to necking form with the exit of the interior isocon.
5. belt type roasting machine according to claim 1 coal gas Dual-cyclone combustor, it is characterised in that on the burner block
It is provided with a cylindricality through hole for being used to insert the fuel air pipe；It is fixed with the burner block for installing with body of heater
Adpting flange.
6. belt type roasting machine according to claim 5 coal gas Dual-cyclone combustor, it is characterised in that on the burner block
Offer peep-hole and be fixed with igniter and UV probes.
7. belt type roasting machine according to claim 1 coal gas Dual-cyclone combustor, it is characterised in that the air channel and one
Secondary wind blast pipe communicates.
8. belt type roasting machine according to claim 1 coal gas Dual-cyclone combustor, it is characterised in that the fuel air
Pipe is connected with gas pipe.
9. a kind of belt type roasting machine, it is characterised in that used including the belt type roasting machine described in any one in claim 1 to 8
Coal gas Dual-cyclone combustor.
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| CN201610756520.4A CN107781812B (en) | 2016-08-29 | 2016-08-29 | Coal gas double-cyclone burner for belt type roasting machine and belt type roasting machine |
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| CN201610756520.4A CN107781812B (en) | 2016-08-29 | 2016-08-29 | Coal gas double-cyclone burner for belt type roasting machine and belt type roasting machine |
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| CN107781812B CN107781812B (en) | 2020-08-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116467817A (en) * | 2023-06-01 | 2023-07-21 | 广东合胜厨电科技有限公司 | Air duct design method based on upper air inlet burner |
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| US20020086257A1 (en) * | 2001-01-04 | 2002-07-04 | Primdahl Ivar Ivarsen | Swirler burner |
| CN1836134A (en) * | 2004-03-03 | 2006-09-20 | 三菱重工业株式会社 | Combustor |
| CN103411220A (en) * | 2013-07-25 | 2013-11-27 | 江联重工股份有限公司 | Big heating value difference double-fuel gas double-swirl burner |
| CN204987009U (en) * | 2015-09-14 | 2016-01-20 | 张宝源 | Wide in range high -efficient low NOx burner |
| CN105258124A (en) * | 2015-11-08 | 2016-01-20 | 上饶市广丰区方正非矿开发有限公司 | Combustor used in rotary kiln during production of black talc |
| CN105805746A (en) * | 2016-05-12 | 2016-07-27 | 徐州科融环境资源股份有限公司 | Classified-combustion fuel gas low-nitrogen combustor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116467817A (en) * | 2023-06-01 | 2023-07-21 | 广东合胜厨电科技有限公司 | Air duct design method based on upper air inlet burner |
| CN116467817B (en) * | 2023-06-01 | 2023-11-17 | 广东合胜厨电科技有限公司 | Air duct design method based on upper air inlet burner |
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