CN204227893U - The long excellent heating furnace of a kind of aluminium - Google Patents
The long excellent heating furnace of a kind of aluminium Download PDFInfo
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- CN204227893U CN204227893U CN201420582109.6U CN201420582109U CN204227893U CN 204227893 U CN204227893 U CN 204227893U CN 201420582109 U CN201420582109 U CN 201420582109U CN 204227893 U CN204227893 U CN 204227893U
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- aluminium bar
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- heating furnace
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Abstract
The utility model discloses the long excellent heating furnace of a kind of aluminium, comprise burner hearth, combustion chamber and hot air circulating system.Described hot air circulating system comprises circulating fan, the hot bellows be communicated with circulating fan, is located at backwind tube in burner hearth and flow-guiding structure.Described combustion chamber is connected with circulating fan, and the air outlet of described hot bellows is just arranged above aluminium bar shaking furnace tapping mechanism, and described backwind tube is located at roof of the furnace and is positioned at above aluminium bar support, is provided with the return air inlet be connected with backwind tube one end in the bottom of combustion chamber.The hot blast that described combustion chamber produces becomes negative-pressure cyclic at freeze profile under described circulating fan, backwind tube and flow-guiding structure acting in conjunction, thus form the parallel airflow band in approximate slab shape in aluminium bar top and bottom to be processed, make a series of aluminium bar thermally equivalents to be processed.The time that the utility model makes effectively to heat aluminium bar increases, and the high and aluminium bar of the rate of heat addition is heated evenly, and equipment has higher energy conversion efficiency, and energy loss is less.
Description
Technical field
The utility model belongs to aluminium bar firing equipment technical field, is specifically related to the long excellent heating furnace of a kind of aluminium.
Background technology
At present, what the aluminium bar mode of heating of aluminium section bar before extrusion process generally adopted is stub heating, this equipment preheating aluminium bar is in industry accustomed to being referred to as: stub heating furnace, cylindrical, massive by specified diameter long aluminium bar cold conditions cuts into suitable length, then these short aluminium bars are heated in advance, then send extruder to and carry out extrusion process formation section bar.
But when stub heating furnace uses, this device fabrication operation is more, cause artificial and energy utilization rate is lower, therefore gradually by long excellent heating furnace (being also called how excellent heating furnace) replacement.
The mode of heating of the excellent heating furnace of the length on market is heated in advance by long for the cylindrical, massive of specified diameter aluminium bar, then hot aluminium bar cut into suitable length, then send the extrusion process that extruder carries out aluminium section bar to.The excellent heating furnace of length of the prior art is mainly made up of burner hearth, combustion chamber, circulating fan and return air inlet, described return air inlet is positioned near described roof of the furnace central point, the high-temperature gas that combustion chamber produces is injected on aluminium bar to be processed under circulating fan effect, last hot blast sucks back to combustion chamber through described return air inlet, defines the taper return air region that take return air inlet as top.
There is following shortcoming in the excellent heating furnace of this length: beyond described taper triangle return air region, there is large stretch of heating dead band, the aluminium bar being positioned at this heating dead band can only rely on the static heat air filled the air from trigonum low velocity to heat, and the efficiency of its heat exchange is very low.Even if stack many aluminium bars side by side, also fail to receive desirable effect.If constantly increase the quantity of preheating aluminium bar, first add volume and the appearance and size of body of heater, significantly increase the loss of body of heater heat, be unfavorable for the layout of equipment in production scene.This situation can increase manufacturing cost and the operating cost of equipment simultaneously.And described taper triangle return air region top, namely in the below of return air inlet, heat meeting high concentration, obviously can be there is the phenomenon at centre " heat " two " cold " in total length direction by the aluminium bar heated in this position, because initial heating is uneven, will have influence on the temperature homogeneity that aluminium bar is come out of the stove to a certain extent, What is more also can cause several aluminium bar middle parts in this region below return air inlet by scorification and be sticked together and cause the generation of production accident.
And spray hot wind is to after on aluminium bar of coming out of the stove, drop on burner hearth bottom surface disorderly, then under thermal current lifting power and the acting in conjunction of return air inlet suction force, be back to return air inlet straight, make to stack in hot blast and stove the surface contact of aluminium bar and insufficient, and just carry out in less region, cause overall heat exchanger effectiveness lower.
Utility model content
The purpose of this utility model is to solve above deficiency, devises the long excellent heating furnace of a kind of aluminium, and the long excellent heating furnace of this aluminium has higher energy conversion efficiency, and its rate of heat addition is high, and aluminium bar is heated evenly.
The technical scheme taked to realize the utility model object is: the long excellent heating furnace of a kind of aluminium, comprise burner hearth, combustion chamber and hot air circulating system, described combustion chamber is located at above described burner hearth, is provided with aluminium bar support and lays respectively at aluminium bar Jin Lu mechanism and the aluminium bar shaking furnace tapping mechanism at aluminium bar support two ends in described burner hearth; Described hot air circulating system comprises circulating fan, the hot bellows be communicated with circulating fan, is located at backwind tube in burner hearth and flow-guiding structure; Described combustion chamber is connected with described circulating fan, and the air outlet of described hot bellows is just arranged above described aluminium bar shaking furnace tapping mechanism, and described air outlet is bar gap-like; Described backwind tube is located at roof of the furnace and is positioned at above described aluminium bar support, the return air inlet be connected with described backwind tube one end is provided with in the bottom of described combustion chamber, the described backwind tube other end is provided with bar seam inlet scoop, and described bar seam inlet scoop is located at above described aluminium bar Jin Lu mechanism; The hot blast that described combustion chamber produces becomes negative-pressure cyclic at freeze profile under described circulating fan, flow-guiding structure and backwind tube acting in conjunction, thus forms the air-flow band of substantially parallel shape in aluminium bar top and bottom to be processed, makes aluminium bar thermally equivalent to be processed.
Preferably, described flow-guiding structure comprises hot blast deflector and return air deflector; Described hot blast deflector is positioned at burner hearth bottom and is located at below the air outlet of described hot bellows; Described return air deflector is positioned at the below of described bar seam inlet scoop.
Preferably, the bar gap-like air outlet of described hot bellows stitches inlet scoop with described bar and is parallel to each other corresponding.Make the air-flow band more easily forming substantially parallel shape on aluminium bar to be processed.
Preferably, the bar gap-like air outlet of described hot bellows is multiple, and hot blast is evenly ejected to aluminium bar to be come out of the stove from bar gap-like air outlet.
Described bar gap-like air outlet is parallel with aluminium bar total length direction, and multiple gap-like air outlets make being heated of aluminium bar more even.
Preferably, the surface of described aluminium bar support is inclined-plane, and aluminium bar to be processed is arranged on described inclined-plane, enters stove end reduce gradually to the come out of the stove height on extreme direction inclined-plane of aluminium bar from aluminium bar.
Preferably, be also provided with and turn over bar structure in described burner hearth, aluminium bar to be processed moves from described aluminium bar Jin Lu mechanism one end to described aluminium bar shaking furnace tapping mechanism one end turning under bar structure effect, and described aluminium bar moving direction is perpendicular to aluminium bar length direction.
Preferably, described inclined-plane is provided with limited block near one end of described aluminium bar shaking furnace tapping mechanism, aluminium bar described turn over bar structure effect under cross described limited block and enter described aluminium bar shaking furnace tapping mechanism one by one.
Preferably, the corner of described hot blast deflector and described return air deflector is rounded corner structure.
Preferably, heat-insulation layer is provided with in the periphery of described burner hearth and combustion chamber.
Compared with prior art, the beneficial effects of the utility model are:
1, the high-temperature gas that combustion chamber in the long excellent heating furnace of the utility model aluminium above burner hearth produces, by the acceleration of circulating fan and the distribution of hot bellows bar gap-like air outlet, total length is ejected on aluminium bar to be come out of the stove, then hot blast is under the guide function of flow-guiding structure, towards the direction of bar seam inlet scoop in order with close to flatly flowing, the thickness of thermal current, direction and dynamic characteristics meet the needs of equipment hot air circulation completely, hot blast is at circulating fan, reciprocation cycle is carried out under flow-guiding structure and backwind tube acting in conjunction, the time of effectively heating aluminium bar is increased, thus obtain the higher aluminium bar rate of heat addition, make the heating-up temperature of aluminium bar in burner hearth consistent and even.
2, the negative pressure that in the utility model, combustion chamber produces, through return air inlet and backwind tube, forms negative pressure near the import of bar seam inlet scoop, therefore forming the air-flow that two strand have surplus heat up and down just entering stove aluminium bar, first heating just entering stove aluminium bar.The existence of flow-guiding structure makes at hot blast deflector, return air deflector and bar stitch the parallel airflow band defining approximate slab shape between inlet scoop, first allow hot blast effectively contact each root in burner hearth and stack the Lower Half arc-shaped surface of aluminium bar, secondly under the effect of thermal current lifting power, the thermal current of part moves upward through the gap adjacent aluminium bar, effectively allow hot blast increase each root in contact furnace and stack the surface of aluminium bar, so there is not dead band in the heating of the utility model to aluminium bar, and the heat that all positions, aluminium bar total length direction accept hot blast transmission is consistent.
3, the parallel airflow band of the approximate slab shape of the utility model freeze profile one-tenth, under the effect of thermal current lifting power, in hot blast contact furnace, each root stacks the arc-shaped surface of the Lower Half of aluminium bar, the thermal current rapid movement of turbulent flow is formed easily near the surface interface of the circular arc of this serial aluminium bar, be very beneficial for the carrying out of heat exchange, the heat exchanger effectiveness of Whole Equipment is greatly enhanced.
Due to the raising of heat exchanger effectiveness, on the one hand under the equipment performance condition of regulation, the aluminium bar quantity that equipment is stacked simultaneously can obviously reduce, so just can reduce volume and the appearance and size of body of heater, the loss of obvious minimizing body of heater heat, be conducive to the layout of equipment in production scene, reduce manufacturing cost and the operating cost of equipment; On the other hand when the aluminium bar quantity that equipment is stacked is constant simultaneously, can obtain the high performance index that aluminium bar of coming out of the stove has the minimum temperature difference, these two aspects define the available condition of equipment adapting to different user demand.
Accompanying drawing explanation
Fig. 1 is the structural representation of the long excellent heating furnace of the utility model aluminium;
Fig. 2 is the top view of burner hearth in the long excellent heating furnace of the utility model aluminium;
Fig. 3 is the top view of the long excellent heating furnace of the utility model aluminium.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described further.
Shown in accompanying drawing 1 to accompanying drawing 3, the long excellent heating furnace of a kind of aluminium, comprise body of heater 1, heat-insulation layer 2, burner hearth 3, combustion chamber 4 and hot air circulating system, described combustion chamber 4 is located at above described burner hearth 3, and described heat-insulation layer 2 is positioned at the periphery of described combustion chamber 4 and described burner hearth 3.Be provided with aluminium bar support 5 in described burner hearth 3 and lay respectively at aluminium bar Jin Lu mechanism 6 and the aluminium bar shaking furnace tapping mechanism 7 at aluminium bar support 5 two ends.The surface of described aluminium bar support 5 is inclined-plane, the height on described inclined-plane enters stove extreme direction to aluminium bar end of coming out of the stove from aluminium bar to be reduced gradually, aluminium bar to be processed is arranged on described inclined-plane, and just entered stove aluminium bar 61 and be placed in aluminium bar Jin Lu mechanism 6, aluminium bar 71 to be come out of the stove is placed on aluminium bar shaking furnace tapping mechanism 7.Described hot air circulating system comprises circulating fan 8, the hot bellows 9 be communicated with circulating fan 8, is located at backwind tube 10 in burner hearth 3 and flow-guiding structure.Described circulating fan 8 is connected with described combustion chamber 4, the air outlet of described hot bellows 9 is bar gap-like, bar gap-like air outlet 91 is just to the aluminium bar to be come out of the stove 71 that described aluminium bar shaking furnace tapping mechanism 7 is placed, and bar gap-like air outlet 91 is multiple, hot blast is evenly ejected to aluminium bar 71 to be come out of the stove from bar gap-like air outlet 91.
Described flow-guiding structure comprises hot blast deflector 11 and return air deflector 12.Described hot blast deflector 11 to be positioned at bottom burner hearth 3 and to be located at below the air outlet of described hot bellows 9.Described return air deflector 12 is positioned at the below of described aluminium bar Jin Lu mechanism 6 and is positioned at below described bar seam inlet scoop 102.The corner of described hot blast deflector 11 and described return air deflector 12 is rounded corner structure.Described backwind tube 10 is located at burner hearth 3 top and is positioned at above described aluminium bar support 5, is provided with the return air inlet 13 be connected with described backwind tube 10 one end in the bottom of described combustion chamber 4; The other end of described backwind tube is provided with bar seam inlet scoop 102, and described bar seam inlet scoop 102 is arranged on the top of described aluminium bar Jin Lu mechanism 6 and the position of keeping to the side.Bar seam inlet scoop 102 is parallel to each other corresponding with bar gap-like air outlet 91.Also be provided with in described burner hearth 3 and turn over bar structure, aluminium bar to be processed moves from described aluminium bar Jin Lu mechanism 6 to described aluminium bar shaking furnace tapping mechanism 7 along described inclined-plane turning under bar structure effect, and described aluminium bar moving direction is vertical with aluminium bar its length direction.Described inclined-plane is provided with limited block 51 near one end of described aluminium bar shaking furnace tapping mechanism 7, aluminium bar described turn over bar structure effect under cross described limited block 51 and enter described aluminium bar shaking furnace tapping mechanism 7 one by one.The hot blast that described combustion chamber 4 produces becomes reciprocation cycle at freeze profile under described circulating fan 8, flow-guiding structure and backwind tube 10 acting in conjunction, thus the parallel airflow band of approximate slab shape is formed in aluminium bar top and bottom to be processed, make a series of aluminium bar thermally equivalents to be processed.
The operation principle of the long excellent heating furnace of the utility model aluminium is as follows:
Light the fuel in described combustion chamber 4, fuel can be natural gas, oil gas, coal gas, coal, combustible granules etc., combustion chamber 4 combustion of fuel above burner hearth 3, high-temperature gas in combustion chamber 4 enters in hot bellows 9 under the acceleration of circulating fan 8, be ejected on aluminium bar 71 to be come out of the stove through hot bellows bar gap-like air outlet 91 total length, spray on hot blast deflector 11 that the lingering remnants of past customs after aluminium bar 71 drops on bottom burner hearth 3 in an orderly manner, then under the guiding function of hot blast deflector 11 and return air deflector 12 towards bar seam direction, inlet scoop 102 in order with close to flatly flowing, the thickness of thermal current, direction and dynamic characteristics meet the needs of equipment hot air circulation completely.After device start, combustion chamber 4 produces negative pressure due to fuel combustion, through return air inlet 13 and backwind tube 10, near the import of bar seam inlet scoop 102, forms negative pressure, forms the air-flow that two strand have surplus heat up and down, just entered stove aluminium bar and heated what just to enter stove aluminium bar 61.The aluminium bar of aluminium bar Jin Lu mechanism side moves to aluminium bar shaking furnace tapping mechanism one end gradually turning under bar structure effect, hot blast deflector 11, the parallel airflow band of approximate slab shape is defined between return air deflector 12 and bar seam inlet scoop 102, under the effect of thermal current lifting power, the rising of thermal current must allow hot blast effectively in contact furnace each root stack the surface of aluminium bar, there is not dead band in the heating of the utility model aluminium bar, overcome in prior art the shortcoming heating dead band, and when using the utility model to heat aluminium bar, the heat that all positions, aluminium bar total length direction accept hot blast transmission is consistent.
As shown in Figure 3, flow evenly through aluminium bar surface from the parallel airflow band 103 of the approximate slab shape of aluminium bar upper and lower surface process, then under the suction of bar seam inlet scoop 102, sucked backwind tube 10, in backwind tube 10, form return wire harness 104.The parallel airflow band of approximate slab shape, first allow hot blast effectively in contact furnace each root stack the Lower Half arc-shaped surface of aluminium bar, next is under the effect of thermal current lifting power, the thermal current of part moves upward through the gap adjacent aluminium bar, effectively allows hot blast increase each root in contact furnace and stacks the surface of aluminium bar.And near the surface interface of this series of arc, easily form the thermal current rapid movement of turbulent flow, be very beneficial for the carrying out of heat exchange, increase substantially the heat exchanger effectiveness of Whole Equipment.Due to the raising of heat exchanger effectiveness, on the one hand under the equipment performance condition of regulation, the aluminium bar quantity that equipment is stacked simultaneously can obviously reduce, so just can reduce volume and the appearance and size of body of heater, body of heater thermal loss is obviously reduced, be conducive to the layout of equipment in production scene, reduce manufacturing cost and the operating cost of equipment simultaneously.On the other hand, when the equipment aluminium bar quantity of simultaneously stacking is constant, the high performance index that aluminium bar of coming out of the stove has the minimum temperature difference can be obtained.Be transported to the special cut-out facility of configuration by the aluminium bar that heating is come out of the stove immediately, aluminium bar cut off according to specific requirement, adapts to flexible and changeable need of production.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also change above-mentioned embodiment and revise.Therefore, the utility model is not limited to detailed description of the invention disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this description, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (9)
1. the long excellent heating furnace of aluminium, comprise burner hearth, combustion chamber and hot air circulating system, it is characterized in that, described combustion chamber is located at above described burner hearth, is provided with aluminium bar support and lays respectively at aluminium bar Jin Lu mechanism and the aluminium bar shaking furnace tapping mechanism at aluminium bar support two ends in described burner hearth;
Described hot air circulating system comprises circulating fan, the hot bellows be communicated with circulating fan, is located at backwind tube in burner hearth and flow-guiding structure; Described combustion chamber is connected with described circulating fan, and the air outlet of described hot bellows is just arranged above described aluminium bar shaking furnace tapping mechanism, and described air outlet is bar gap-like; Described backwind tube is located at roof of the furnace and is positioned at above described aluminium bar support, the return air inlet be connected with described backwind tube one end is provided with in the bottom of described combustion chamber, the described backwind tube other end is provided with bar seam inlet scoop, and described bar seam inlet scoop is located at above described aluminium bar Jin Lu mechanism;
The hot blast that described combustion chamber produces becomes negative-pressure cyclic at freeze profile under described circulating fan, flow-guiding structure and backwind tube acting in conjunction, thus forms the air-flow band of substantially parallel shape in aluminium bar top and bottom to be processed, makes aluminium bar thermally equivalent to be processed.
2. the long excellent heating furnace of aluminium according to claim 1, it is characterized in that, described flow-guiding structure comprises hot blast deflector and return air deflector; Described hot blast deflector is positioned at burner hearth bottom and is located at below the air outlet of described hot bellows; Described return air deflector is positioned at the below of described bar seam inlet scoop.
3. the long excellent heating furnace of aluminium according to claim 1, it is characterized in that, bar gap-like air outlet and the described bar of described hot bellows stitch inlet scoop and are parallel to each other corresponding.
4. the long excellent heating furnace of the aluminium according to claim 1 or 3, it is characterized in that, the bar gap-like air outlet of described hot bellows is multiple, and hot blast is evenly ejected to aluminium bar to be come out of the stove from bar gap-like air outlet.
5. the long excellent heating furnace of aluminium according to claim 1, it is characterized in that, the surface of described aluminium bar support is inclined-plane, and aluminium bar to be processed is arranged on described inclined-plane, enters stove end reduce gradually to the come out of the stove height on extreme direction inclined-plane of aluminium bar from aluminium bar.
6. the long excellent heating furnace of aluminium according to claim 5, it is characterized in that, also be provided with in described burner hearth and turn over bar structure, aluminium bar to be processed moves from described aluminium bar Jin Lu mechanism one end to described aluminium bar shaking furnace tapping mechanism one end turning under bar structure effect, and described aluminium bar moving direction is perpendicular to aluminium bar length direction.
7. the long excellent heating furnace of aluminium according to claim 6, it is characterized in that, the one end near described aluminium bar shaking furnace tapping mechanism on described inclined-plane is provided with limited block, aluminium bar described turn over bar structure effect under cross described limited block and enter aluminium bar shaking furnace tapping mechanism one by one.
8. the long excellent heating furnace of aluminium according to claim 2, it is characterized in that, the corner of described hot blast deflector and described return air deflector is rounded corner structure.
9. the long excellent heating furnace of aluminium according to claim 1, is characterized in that, be provided with heat-insulation layer in the periphery of described burner hearth and combustion chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420582109.6U CN204227893U (en) | 2014-10-09 | 2014-10-09 | The long excellent heating furnace of a kind of aluminium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420582109.6U CN204227893U (en) | 2014-10-09 | 2014-10-09 | The long excellent heating furnace of a kind of aluminium |
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| Publication Number | Publication Date |
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| CN204227893U true CN204227893U (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420582109.6U Expired - Fee Related CN204227893U (en) | 2014-10-09 | 2014-10-09 | The long excellent heating furnace of a kind of aluminium |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333730A (en) * | 2015-11-08 | 2016-02-17 | 广东工业大学 | Bottom heating type energy-saving aluminum bar furnace |
| CN105423745A (en) * | 2015-11-30 | 2016-03-23 | 中色科技股份有限公司 | Method for solving uneven heating of ingot castings on vertically-pushing type heating furnace |
| CN109737757A (en) * | 2019-02-25 | 2019-05-10 | 佛山市朗盾铝加工设备有限公司 | A kind of preheating device of single rod heating furnace |
| CN111023819A (en) * | 2019-12-17 | 2020-04-17 | 肇庆科达机械制造有限公司 | Unpowered multi-rod heating furnace |
-
2014
- 2014-10-09 CN CN201420582109.6U patent/CN204227893U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105333730A (en) * | 2015-11-08 | 2016-02-17 | 广东工业大学 | Bottom heating type energy-saving aluminum bar furnace |
| CN105333730B (en) * | 2015-11-08 | 2019-03-08 | 广东工业大学 | Bottom heated type energy-saving aluminum rod furnace |
| CN105423745A (en) * | 2015-11-30 | 2016-03-23 | 中色科技股份有限公司 | Method for solving uneven heating of ingot castings on vertically-pushing type heating furnace |
| CN109737757A (en) * | 2019-02-25 | 2019-05-10 | 佛山市朗盾铝加工设备有限公司 | A kind of preheating device of single rod heating furnace |
| CN109737757B (en) * | 2019-02-25 | 2024-05-03 | 广东朗盾科技有限公司 | Preheating device of single-rod heating furnace |
| CN111023819A (en) * | 2019-12-17 | 2020-04-17 | 肇庆科达机械制造有限公司 | Unpowered multi-rod heating furnace |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20171009 |
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| CF01 | Termination of patent right due to non-payment of annual fee |