CN208026052U - Opposite-flushing type aluminium melting furnace air-distribution combustion device - Google Patents
Opposite-flushing type aluminium melting furnace air-distribution combustion device Download PDFInfo
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- CN208026052U CN208026052U CN201721461048.8U CN201721461048U CN208026052U CN 208026052 U CN208026052 U CN 208026052U CN 201721461048 U CN201721461048 U CN 201721461048U CN 208026052 U CN208026052 U CN 208026052U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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Abstract
The utility model discloses a kind of opposite-flushing type aluminium melting furnace air-distribution combustion device, including：Furnace body, four nozzles being provided diagonally opposed in the end walls of furnace body, four thermal storage units being connected respectively with four nozzles, fuel gas source are connected to the air inlet of each nozzle by four gas pipelines；The first port of each thermal storage unit is respectively connected to the air inlet of one of nozzle, and second port is connected to air-source, and third port is connected to chimney；The gas injection direction of first jet is parallel with the gas injection direction of second nozzle, and the spacing between axis is H, the gas injection direction of third nozzle is parallel with the gas injection direction of the 4th nozzle, and the spacing between axis is H, and the spacing H between axis is set as a quarter of furnace body width to 1/10th so that mutually liquidating to form eddy flow into the gas in burner hearth；Each thermal storage unit alternating switchover operation between heat release working condition and accumulation of heat working condition.
Description
Technical field
The utility model is related to a kind of aluminium melting furnace, more particularly to a kind of aluminium melting furnace Regenerative Combustion System.
Background technology
In recent years, aluminium melting furnace is widely used in the melting of metal as a kind of infant industry kiln, but in fusion process
It is usually present following problem：Energy waste, environmental pollution, working condition difference etc. caused by due to recovery system is insufficient；Because setting
It is standby design it is unreasonable and caused by production is discontinuous, production efficiency is low, labor intensity reduces etc.；Because burner design it is improper and
Uneven, poor product quality etc. is heated caused by furnace body capacity is big.
As Chinese patent application No.201420527169.8 discloses a kind of large aluminium melting furnace opposite-flushing type heat-accumulation combustion system
System, including：Furnace body, the interior burner hearth being equipped with for combustion heat release of furnace body；And two nozzles, two nozzles are symmetrically disposed in stove
In the end walls of body.Also, in the end walls of furnace body, one air inlet and an outlet are respectively set in the both sides of each nozzle
Mouthful.The system further comprises：Four thermal storage units, each thermal storage unit include cool air inlet, hot air outlet, high temperature cigarette
Gas entrance and low-temperature flue gas outlet, the hot air outlet of each thermal storage unit are connected by pipeline respectively with high-temperature flue gas entry
The cool air inlet of air inlet to the side for being located in one of nozzle and gas outlet, each thermal storage unit is connected by pipeline
To air-source, the low-temperature flue gas of each thermal storage unit is exported is connected to chimney by pipeline；And it is set to the use on each pipeline
In the control valve that each thermal storage unit of control switches between heat storage state and heat release state.But there is no combustion gas in the program
By any preheating, cold combustion gas makes the temperature in burner hearth generate fluctuation into membership, and combustion gas and the mixing of air are inadequate
Fully, the phenomenon that easy ting produce imperfect combustion.
For another example Chinese patent application No.201210390169.3 discloses a kind of combustion in Opposite Firing Boiler
Wind arrangement to the greatest extent, boiler combustion mode are opposed firing burning pattern, and burnout degree is sent into using circle of contact mode.It is described front and back
The boiler of wall opposed firing pattern includes Opposite Firing Boiler, is boundary by the after-flame using boiler long side symmetrical center line
Wind is divided into two groups, and every group is equipped with 4-5 burnout degree nozzle；Every group of burnout degree nozzle projects burnout degree center line and the same imagination
It is oval tangent, and two groups of elliptical direction of rotation, on the contrary, one is rotation counterclockwise, another is to rotate clockwise.The combustion
It is High-speed DC formula burnout degree to use up wind, and burnout degree nozzle is using full swing pattern that is upper and lower, swinging.But the front-back wall
Burnout degree arrangement in face-fired boiler, is directed to burnout degree, i.e., a certain amount of air is supplied in burning-out zone, to add
Strong burnout degree and the mixing for rising flue gas, the purpose is to increase the residence time of flue gas stroke and fuel in stove, not
It is open how to adjust fuel injection angle, and do not refer to recovery waste heat system, cause energy waste and environmental pollution.
Therefore it provides the high opposite-flushing type aluminium melting furnace air-distribution combustion device of a kind of energy-saving and environmental protection, production efficiency becomes anxious in the industry
It need to solve the problems, such as.
Invention content
The purpose of this utility model is to provide that a kind of energy-saving and environmental protection, production efficiency is high, the opposite-flushing type of homogeneous heating is molten in stove
Aluminium stove air-distribution combustion device.
To achieve the goals above, the utility model provides a kind of opposite-flushing type aluminium melting furnace air-distribution combustion device, including：Stove
Body, the interior burner hearth being equipped with for combustion heat release of furnace body；Four nozzles, four nozzles are provided diagonally opposed in the end walls of furnace body,
Four nozzles include being located at furnace body side end wall adjacent to the first jet of furnace body one side, positioned at furnace body other side end wall adjacent to stove
The second nozzle of body another side adjacent to the third nozzle of furnace body one side and is located at furnace body positioned at furnace body other side end wall
Fourth nozzle of the side end wall adjacent to furnace body another side.Opposite-flushing type aluminium melting furnace air distribution combustion system further includes four accumulation of heat lists
Member, each thermal storage unit include the first port for the bottom end for being set to corresponding thermal storage unit, set on the top of corresponding thermal storage unit
The second port of wall and third port set on top one end of corresponding thermal storage unit, the first port point of each thermal storage unit
The air inlet of one of nozzle is not connected to by first pipe, the second port of each thermal storage unit is connected by second pipe
It is connected to air-source, the third port of each thermal storage unit is connected to chimney by third pipeline；Every gas pipeline is passed through with it
It connects tube wall at the downstream of the first pipe of same nozzle and is nested in first pipe mixed to be sprayed into burner hearth by nozzle
Close gas；The first port of each thermal storage unit, the second port of each thermal storage unit, the third port of each thermal storage unit,
And control valve is respectively equipped on every gas pipeline to realize each thermal storage unit alternately in heat release working condition and accumulation of heat work
Make switchover operation between state；Each thermal storage unit includes：The first regenerative chamber for arranging and communicate with each other successively from top to bottom,
Two regenerative chambers and exhaust air box, wherein each first port of thermal storage unit is connected with one end of exhaust air box, each thermal storage unit
Second port be connected with the roof of the first regenerative chamber, one end phase of the third port of each thermal storage unit and the first regenerative chamber
Connection.
Selectively, control valve can be electric switching valve or solenoid valve.
Selectively, the gas injection direction of first jet is parallel with the gas injection direction of second nozzle, and axis
Spacing between line is H, and the gas injection direction of third nozzle is parallel with the gas injection direction of the 4th nozzle, and axis
Between spacing be H, the spacing H between axis is set as a quarter of furnace body width to 1/10th so that into burner hearth
Interior gas mutually liquidates to form eddy flow.
Preferably, the axis of the axis of first jet, the axis of second nozzle, the axis of third nozzle and the 4th nozzle
Line is in same level.
Selectively, when first jet and second nozzle spray mixed gas into burner hearth, third nozzle and the 4th spray
Mouth is closed；The thermal storage unit being connected respectively with first jet and second nozzle is in heat release working condition, wherein
The first port for the thermal storage unit being connected respectively with first jet and second nozzle is exported as high temperature air, respectively with first
The second port for the thermal storage unit that nozzle and second nozzle are connected as Cryogenic air entrance, respectively with first jet and second
The third port for the thermal storage unit that nozzle is connected is closed；The storage being connected respectively with third nozzle and the 4th nozzle
Hot cell is in accumulation of heat working condition, wherein the first end for the thermal storage unit being connected respectively with third nozzle and the 4th nozzle
Mouth is used as high-temperature flue gas entry, and the third port for the thermal storage unit being connected respectively with third nozzle and the 4th nozzle is as low temperature
The second port of exhanst gas outlet, the thermal storage unit being connected respectively with third nozzle and the 4th nozzle is closed.
Selectively, when third nozzle and the 4th nozzle spray mixed gas into burner hearth, first jet and second nozzle
It is closed；The thermal storage unit being connected respectively with third nozzle and the 4th nozzle is in heat release working condition, wherein point
The first port for the thermal storage unit not being connected with third nozzle and the 4th nozzle is exported as high temperature air, is sprayed respectively with third
The second port for the thermal storage unit that mouth and the 4th nozzle are connected is sprayed with third nozzle and the 4th respectively as Cryogenic air entrance
The third port for the thermal storage unit that mouth is connected is closed；The accumulation of heat being connected respectively with first jet and second nozzle
Unit is in accumulation of heat working condition, wherein the first port for the thermal storage unit being connected respectively with first jet and second nozzle
As high-temperature flue gas entry, the third port for the thermal storage unit being connected respectively with first jet and second nozzle is as low temperature cigarette
Gas exports, and the second port for the thermal storage unit being connected respectively with first jet and second nozzle is closed.
Selectively, homogenizing plate group is equipped in exhaust air box, homogenizing plate group includes prolonging downwards from the upper table face interval of exhaust air box
The development length of at least five homogenizing plates stretched, at least five homogenizing plates is incremented by along the direction far from first port in air compartment
It is separated out at least six split channels.
Selectively, it is equipped in one end of the exhaust air box of neighbouring first port and matches aerofoil, between aerofoil and first port
Distance be set as exhaust air box width 1/1st to eight/10th, be equipped with a row center along the longitudinal direction center line with aerofoil
Hole, row's centre bore include at least six square holes；Distinguish from row's centre bore to both sides of the edge along the horizontal direction with aerofoil
Equipped with several row's round holes, it includes at least six round holes arranged successively along the vertical direction with aerofoil often to arrange round hole.
Preferably, often row's round hole is staggered respectively in the vertical direction with neighbouring row's round hole, row's centre bore
It is staggered respectively in the vertical direction with neighbouring two rows of round holes.
Selectively, the heat storage filled in the first regenerative chamber of each thermal storage unit is set as honeycomb ceramic heat accumulator,
The heat storage filled in second regenerative chamber of each thermal storage unit is set as Ceramic Balls.
Selectively, the bottom wall of exhaust air box offers slag-drip opening and is attached on heat storage with being discharged to blow by hot-air
Lime-ash.
Selectively, the angle that the gas outlet of the angle that the gas outlet of first jet tilts down and third nozzle tilts down
Spend identical, the acclivitous angle in gas outlet of second nozzle is identical as the acclivitous angle in gas outlet of the 4th nozzle.
Preferably, the angle initialization that the gas outlet of first jet tilts down is 15 °~45 °, the gas outlet of second nozzle
Acclivitous angle initialization is 15 °~45 °.
Preferably, first jet injection, second nozzle, third nozzle and the 4th nozzle sprayed into burner hearth heavy oil or
Natural gas.
The utility model has the beneficial effects that：(1), by that in combustion gas and air is passed through in the nozzle to angie type, can make
Combustion gas in aluminum melting furnace body and air form rotation shape and liquidate air-flow, so that flame is full of entire furnace body, can more quickly heat
Furnace body simultaneously makes it be heated evenly；(2), each nozzle is connected with thermal storage unit, thermal energy can be not only effectively utilized, to air
It is preheated, avoids the waste of the energy, while also can guarantee that furnace body temperature is in stable state, not will produce temperature fluctuation, protected
Card burns more thorough；(3), thermal storage unit uses fabricated structure, and the waste heat energy of discharge flue gas is more thoroughly utilized
Amount；(4) the two-way ventilation setting of thermal storage unit, can effectively facilitate due to discharge flue gas and be attached to the flue dust solid on heat storage
Particle is fallen；(5) homogenizing plate group and the setting with aerofoil so that the air after preheating can be further evenly into nozzle
In, ensure the steady progress of stove chamber inner combustion.
Description of the drawings
Fig. 1 shows the organigram of the embodiment of the opposite-flushing type aluminium melting furnace air-distribution combustion device of the utility model.
Fig. 2 shows the organigrams of the thermal storage unit of the utility model.
Fig. 3 shows the organigram with aerofoil of the utility model.
Fig. 4 shows the schematic cross-section of the air inlet of the nozzle of the utility model.
Specific implementation mode
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, it is intended to for explaining the utility model, and should not be understood as to the utility model
Limitation.
Fig. 1 is please referred to, as a kind of non-limiting embodiment, the opposite-flushing type aluminium melting furnace air distribution combustion of the utility model fills
Set including：Furnace body 1, the first thermal storage unit 10, the second thermal storage unit 20, third thermal storage unit 30, the 4th thermal storage unit 40, first
Nozzle 100, second nozzle 200, third nozzle 300 and the 4th nozzle 400.
First thermal storage unit 10 includes：First port 10A, second port 10B and third port 10C.Wherein, first end
Mouth 10A is set to the bottom end of the first thermal storage unit 10, and second port 10B is set to the roof of the first thermal storage unit 10, third end
Mouth 10C is then set to top one end of the first thermal storage unit 10.The first port 10A of first thermal storage unit 10 passes through first pipe L1
Be connected with first jet 100, second port 10B is connected by pipeline with air-source AS, third port 10C by pipeline with
Chimney 2 is connected.
Second thermal storage unit 20 includes：First port 20A, second port 20B and third port 20C.Wherein, first end
Mouth 20A is set to the bottom end of the second thermal storage unit 20, and second port 20B is set to the roof of the second thermal storage unit 20, third end
Mouth 20C is then set to top one end of the second thermal storage unit 20.The first port 20A of second thermal storage unit 20 passes through first pipe L1
It is connected with second nozzle 200, second port 20B is connected by pipeline with air-source AS, and third port 20C passes through third pipe
Road L3 is connected with chimney 2.
Third thermal storage unit 30 includes：First port 30A, second port 30B and third port 30C.Wherein, first end
Mouth 30A is set to the bottom end of third thermal storage unit 30, and second port 30B is set to the roof of third thermal storage unit 30, third end
Mouth 30C is then set to top one end of third thermal storage unit 30.The first port 30A of third thermal storage unit 30 passes through first pipe L1
Be connected with third nozzle 300, second port 30B is connected by pipeline with air-source AS, third port 30C by pipeline with
Chimney 2 is connected.
4th thermal storage unit 40 includes：First port 40A, second port 40B and third port 40C.Wherein, first end
Mouth 40A is set to the bottom end of the 4th thermal storage unit 40, and second port 40B is set to the roof of the 4th thermal storage unit 40, third end
Mouth 40C is then set to top one end of the 4th thermal storage unit 40.The first port 40A of 4th thermal storage unit 40 passes through first pipe L1
Be connected with the 4th nozzle 400, second port 40B is connected by pipeline with air-source AS, third port 40C by pipeline with
Chimney 2 is connected.
Fuel gas source GS then by gas pipeline GL respectively with a nozzle 100, second nozzle 200, third nozzle 300 and
4th nozzle 400 is connected.
As shown in Figure 1, the gas of gas injection direction (as shown in phantom in Figure 1) and second nozzle 200 of first jet 100
Body injection direction (as shown in phantom in Figure 1) is parallel, and the spacing between axis is H.Similarly, the gas of third nozzle 300
Body injection direction is parallel with the gas injection direction of the 4th nozzle 400, and the spacing between axis is also H, in the non-limit
In property embodiment processed, the spacing H between axis is set as 1/6th of furnace body width, as a result, such as the chain-dotted line institute in Fig. 1
Show, mixed gas is by two nozzles being diagonally distributed, (first jet 100 carries out liquidate injection or third with second nozzle 200
Nozzle 300 and the 4th nozzle 400 carry out the injection that liquidates) it spurts into respectively in burner hearth, it is mutually parallel and there is certain distance between axles
Setting make two bursts of mixed gas mutually liquidate to form eddy flow, ensure that combustion flame be full of entire furnace body, more quickly plus
Hot stove body simultaneously makes it be heated evenly.
In the non-limiting embodiment, angle and third nozzle 300 that the gas outlet of first jet 100 tilts down
The angle that tilts down of gas outlet be about 30 °, the acclivitous angle in gas outlet and the 4th nozzle of second nozzle 200
The 400 acclivitous angle in gas outlet is also about 30 °, to more efficiently make to be full of flame in furnace body.
In operation, when the first thermal storage unit 10 and the second thermal storage unit 20 are in heat release working condition, the first accumulation of heat
The second port 20B of the second port 10B of unit 10 and the second thermal storage unit 20 is as Cryogenic air entrance, and cold air is from first
The second port 20B of the second port 10B of thermal storage unit 10 and the second thermal storage unit 20 enters to the first thermal storage unit 10 and
Preheating heating is carried out in two thermal storage units 20, the high temperature air formed after heat exchange is then each passed through the first thermal storage unit 10
The first port 20A of first port 10A and the second thermal storage unit 20 are transmitted to first jet 100 and by first pipe L1
At two nozzles 200, after combustion gas mixing, first jet 100 and second nozzle 200 spray mixed gas into burner hearth and burn
Heat release.At this point, the electromagnetism of the third port 20C of the third port 10C and the second thermal storage unit 20 of the first thermal storage unit 10 of control
Valve is closed.Simultaneously, the solenoid valve for controlling third nozzle 300 and the 4th nozzle 400 is closed, third thermal storage unit 30 and the 4th
Thermal storage unit 40 is in accumulation of heat working condition, third thermal storage unit 30 of the high-temperature flue gas in burner hearth certainly as high-temperature flue gas entry
First port 30A and the first port 40A of the 4th thermal storage unit 40 respectively enter third thermal storage unit 30 and the 4th accumulation of heat list
In member 40, the heat storage in third thermal storage unit 30 and the 4th thermal storage unit 40 carries out correspondingly accumulation of heat and works, low after cooling
Then third is discharged by the third port 40C of the third port 30C of third thermal storage unit 30 and the 4th thermal storage unit 40 in warm flue gas
Outside thermal storage unit 30 and the 4th thermal storage unit 40, at this point, the second port 30B and the 4th accumulation of heat list of control third thermal storage unit 30
The solenoid valve of the second port 40B of member 40 is closed.
Accumulation of heat work, when being in heat release working condition, third are completed in third thermal storage unit 30 and the 4th thermal storage unit 40
The second port 30B of the thermal storage unit 30 and second port 40B of the 4th thermal storage unit 40 is as Cryogenic air entrance, and cold air is certainly
The second port 30B of third thermal storage unit 30 and the second port 40B of the 4th thermal storage unit 40 enter to third thermal storage unit 30
Preheating heating is carried out in the 4th thermal storage unit 40, the high temperature air formed after heat exchange is then each passed through third thermal storage unit
The 30 first port 30A and first port 40A of the 4th thermal storage unit 40, third nozzle 300 is transmitted to by first pipe L1
And the 4th at nozzle 400, after combustion gas mixing, third nozzle 300 and the 4th nozzle 400 spray mixed gas progress into burner hearth
Combustion heat release.At this point, the third port 40C of the third port 30C and the 4th thermal storage unit 40 of control third thermal storage unit 30
Solenoid valve is closed.Simultaneously, the solenoid valve for controlling first jet 100 and second nozzle 200 is closed, the first thermal storage unit 10 and
Second thermal storage unit 20 is in accumulation of heat working condition, first accumulation of heat list of the high-temperature flue gas in burner hearth certainly as high-temperature flue gas entry
The first port 10A of the member 10 and first port 20A of the second thermal storage unit 20 respectively enters the first thermal storage unit 10 and second storage
In hot cell 20, the heat storage in the first thermal storage unit 10 and the second thermal storage unit 20 carries out correspondingly accumulation of heat and works, after cooling
Low-temperature flue gas then pass through the third port 20C discharges of the third port 10C of the first thermal storage unit 10 and the second thermal storage unit 20
Outside first thermal storage unit 10 and the second thermal storage unit 20, at this point, the second port 10B and second of the first thermal storage unit 10 of control stores
The solenoid valve of the second port 20B of hot cell 20 is closed.
In the non-limiting embodiment, each thermal storage unit includes：It arranges and communicates with each other successively from top to bottom
First regenerative chamber, the second regenerative chamber and exhaust air box.Wherein, the first port of each thermal storage unit is connected with one end of exhaust air box
It connects, the second port of each thermal storage unit is connected with the roof of the first regenerative chamber, the third port of each thermal storage unit and the
One end of one regenerative chamber is connected, and the bottom wall of exhaust air box offers slag-drip opening.
It should be noted that the first thermal storage unit 10, the second thermal storage unit 20, third thermal storage unit 30 in Fig. 1 and
The arrangement of 4th thermal storage unit 40 is merely illustrative the arrangement mode for indicating four thermal storage units relative to furnace body 1, in fact, often
A thermal storage unit is parallel to that furnace body longitudinal direction is vertically disposed, i.e. the side of the slag-drip opening of four in Fig. 1 thermal storage unit
It is inside to paper is perpendicular to.
By taking the first thermal storage unit as an example, as shown in Fig. 2, the first thermal storage unit 10 includes：First regenerative chamber 110, second stores
Hot cell 120, exhaust air box 130 and slag-drip opening 140.The heat storage filled in first regenerative chamber 110 is honeycomb ceramic heat accumulator,
The heat storage filled in second regenerative chamber 120 is Ceramic Balls.It is assembled using the combination of two kinds of heat storages, more thoroughly utilizes height
The heat of warm flue gas.
In the non-limiting embodiment, homogenizing plate group is equipped in exhaust air box 130, homogenizing plate group includes from exhaust air box
Ten homogenizing plates 1301 that 130 upper table face interval extends downwardly, the development length of ten homogenizing plates 1301 is along far from first end
The direction of mouth 10A is incremented by, and is additionally provided with aerofoil 1302 in one end of neighbouring first port 10A, matches aerofoil 1302 and first port
The distance between 10A W are set as 1/10th of exhaust air box width.As shown in figure 3, along the longitudinal direction center for matching aerofoil 1302
Line is equipped with row's centre bore, and row's centre bore includes seven square holes 13021.Along the horizontal direction with aerofoil 1302 from a row
Heart hole 13021 is respectively equipped with two rows of round holes to both sides of the edge, often arrange round hole include along with aerofoil 1301 vertical direction according to
Seven round holes 13022 of secondary arrangement often arrange round hole and are staggered respectively in the vertical direction with neighbouring row's round hole, and one
Row's centre bore 13021 is staggered respectively in the vertical direction with neighbouring two rows of round holes 13022, consequently facilitating being stored through first
High temperature air behind hot cell and the preheating of the second regenerative chamber 20 more uniformly flows out thermal storage unit.
Since the solid particulate matters such as dust can be mingled in high-temperature flue gas, when high-temperature flue gas passes through thermal storage unit, these
Impurity can then attach on heat storage, and over time, the impurity adhered on heat storage is more, and accumulation of heat effect is poorer,
The heat utilization ratio of high-temperature flue gas can then reduce.When thermal storage unit is in heat release state, the air from air-source is then with from
The top-down directions Two-port netwerk 10B enter in the first thermal storage unit 10, sequentially pass through the first regenerative chamber 110, the second regenerative chamber
120 and exhaust air box 130, air-flow direction is with flow of flue gas direction on the contrary, attaching to heat storage so as to effectively blow off
On solid dust particle, particle after blowing off then is discharged from slag-drip opening 140.
In this nonlimiting, as shown in figure 4, every gas pipeline GL is connecting the of same nozzle with it
When one pipeline L1 crosses, passes through the tube wall at the downstream of first pipe L1 and be nested in first pipe in L1, to preheat
Combustion gas and air afterwards is just mixed at the downstream of first pipe L1, and mixed gas is sprayed into burner hearth by nozzle.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means that specific features, structure or feature described in conjunction with this embodiment or example include
In at least one embodiment or example of the utility model.In the present specification, schematic expression of the above terms need not
It must be directed to identical embodiment or example.In addition, without conflicting with each other, those skilled in the art can incite somebody to action
The feature of different embodiments or examples and different embodiments or examples described in this specification is combined.
Although preferred embodiments of the present invention have been described in detail herein, it is to be understood that the utility model is not
It is confined to the concrete structure be described in detail and shown here, it can be by without departing from the spirit and scope of the utility model
Those skilled in the art realizes other modifications and variant.
Claims (8)
1. a kind of opposite-flushing type aluminium melting furnace air-distribution combustion device, including：
Furnace body, the interior burner hearth being equipped with for combustion heat release of the furnace body；And
Four nozzles, four nozzles are provided diagonally opposed in the end walls of the furnace body, and four nozzles include being located at
Furnace body side end wall is adjacent to the first jet of the furnace body one side, positioned at furnace body other side end wall adjacent to the stove
The second nozzle of body another side, positioned at furnace body other side end wall adjacent to the third nozzle of the furnace body one side and
Positioned at furnace body side end wall adjacent to the 4th nozzle of the furnace body another side；
It is characterized in that,
Opposite-flushing type aluminium melting furnace air distribution combustion system further includes four thermal storage units, and each thermal storage unit includes being set to corresponding store
The first port of the bottom end of hot cell, set on corresponding thermal storage unit roof second port and set on corresponding accumulation of heat list
The first port of the third port of top one end of member, each thermal storage unit is connected to wherein one by first pipe respectively
The second port of the air inlet of a nozzle, each thermal storage unit is connected to air-source, Mei Gesuo by second pipe
The third port for stating thermal storage unit is connected to chimney by third pipeline；
Every gas pipeline, which is passed through, to be connected tube wall at the downstream of the first pipe of the identical nozzle with it and is nested in institute
It states in first pipe to spray mixed gas into burner hearth by the nozzle；
The first port of each thermal storage unit, each second port of the thermal storage unit, each thermal storage unit
It is respectively equipped with control valve in third port and every gas pipeline to realize that each thermal storage unit alternately works in heat release
Switchover operation between state and accumulation of heat working condition；
Each the thermal storage unit includes：The first regenerative chamber for arranging and communicate with each other successively from top to bottom, the second regenerative chamber and
Exhaust air box, wherein the first port of each thermal storage unit is connected with one end of the exhaust air box, each accumulation of heat list
The second port of member is connected with the roof of first regenerative chamber, the third port and described first of each thermal storage unit
One end of regenerative chamber is connected.
2. opposite-flushing type aluminium melting furnace air-distribution combustion device as described in claim 1, which is characterized in that the gas of the first jet
Injection direction is parallel with the gas injection direction of the second nozzle, and the spacing between axis is H, the third nozzle
Gas injection direction it is parallel with the gas injection direction of the 4th nozzle, and the spacing between axis be H, the axis
Spacing H between line is set as a quarter of the furnace body width to 1/10th so that into the gas in the burner hearth
Mutually liquidate to form eddy flow.
3. opposite-flushing type aluminium melting furnace air-distribution combustion device as claimed in claim 2, which is characterized in that the outlet of the first jet
The angle that mouth tilts down is identical as the angle that the gas outlet of the third nozzle tilts down, the gas outlet of the second nozzle
Acclivitous angle is identical as the acclivitous angle in gas outlet of the 4th nozzle.
4. opposite-flushing type aluminium melting furnace air-distribution combustion device as claimed in claim 3, which is characterized in that the outlet of the first jet
The angle initialization that tilts down of mouth is 15 °~45 °, the acclivitous angle initialization in gas outlet of the second nozzle is 15 °~
45°。
5. opposite-flushing type aluminium melting furnace air-distribution combustion device as described in claim 1, which is characterized in that in being set in the exhaust air box
It includes at least five homogenizing plates extended downwardly from the upper table face interval of the exhaust air box to have homogenizing plate group, the homogenizing plate group,
The development length of at least five homogenizing plate is incremented by along the direction far from the first port to be separated out in the air compartment
At least six split channels.
6. opposite-flushing type aluminium melting furnace air-distribution combustion device as claimed in claim 5, which is characterized in that in the neighbouring first port
The exhaust air box one end be equipped with match aerofoil, it is described to be set as the air draft with the distance between aerofoil and the first port
Room width 1/1st to eight/10th is equipped with row's centre bore, a row along the longitudinal direction center line with aerofoil
Centre bore includes at least six square holes；Distinguish from the row centre bore to both sides of the edge along the horizontal direction with aerofoil
Equipped with several row's round holes, it includes at least six circles arranged successively along the vertical direction with aerofoil often to arrange round hole
Hole.
7. opposite-flushing type aluminium melting furnace air-distribution combustion device as claimed in claim 6, which is characterized in that often row's round hole and neighbour
Nearly row round hole is staggered respectively in the vertical direction, and the row centre bore is with neighbouring two rows of round holes in vertical side
It is staggered respectively upwards.
8. opposite-flushing type aluminium melting furnace air-distribution combustion device as claimed in claim 6, which is characterized in that the bottom wall of the exhaust air box is opened
Equipped with slag-drip opening the lime-ash for blowing and being attached on heat storage by hot-air is discharged.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990717A (en) * | 2017-11-03 | 2018-05-04 | 广东工业大学 | Opposite-flushing type aluminium melting furnace air distribution combustion system |
| CN110343869A (en) * | 2019-08-09 | 2019-10-18 | 新乡市华瑞电源材料有限公司 | Communication type is electrolysed market pot and its application method |
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2017
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107990717A (en) * | 2017-11-03 | 2018-05-04 | 广东工业大学 | Opposite-flushing type aluminium melting furnace air distribution combustion system |
| CN107990717B (en) * | 2017-11-03 | 2024-04-02 | 广东工业大学 | Air distribution combustion system of opposite-impact aluminum melting furnace |
| CN110343869A (en) * | 2019-08-09 | 2019-10-18 | 新乡市华瑞电源材料有限公司 | Communication type is electrolysed market pot and its application method |
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