CN105333730A - Bottom heating type energy-saving aluminum bar furnace - Google Patents
Bottom heating type energy-saving aluminum bar furnace Download PDFInfo
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- CN105333730A CN105333730A CN201510760293.8A CN201510760293A CN105333730A CN 105333730 A CN105333730 A CN 105333730A CN 201510760293 A CN201510760293 A CN 201510760293A CN 105333730 A CN105333730 A CN 105333730A
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Abstract
The invention discloses a bottom heating type energy-saving aluminum bar furnace. The bottom heating type energy-saving aluminum bar furnace comprises a heating furnace body, combustors arranged on the front end wall of the heating furnace body, a smoke outlet formed in the top wall of the heating furnace body and a conveying device used for conveying aluminum bars. The bottom heating type energy-saving aluminum bar furnace further comprises a fireproof plate. The fireproof plate extends to the front end wall of the heating furnace body from the rear end wall of the heating furnace body. A smoke return channel is formed between the extending end of the fireproof plate and the front end wall of the heating furnace body, and therefore the part, in the vertical direction of the heating furnace body, of a hearth is divided into a lower heating area located between the bottom wall and the conveying device, an upper heating area located between the conveying device and the fireproof plate and a smoke return area located between the fireproof plate and the top wall. The combustors are located at the position corresponding to the lower heating area and arranged on the front end wall of the heating furnace body, so that combustion smoke sequentially passes through the lower heating area, the upper heating area, the smoke return channel and the smoke return area and is discharged out of the hearth through the smoke outlet.
Description
Technical field
The present invention relates to a kind of heating furnace, particularly a kind of aluminum-bar heating furnace.
Background technology
Aluminium section bar is the material that a kind of construction and decoration field is commonly used.Aluminium section bar needs before shaping first to be sent in heating furnace by aluminium bar and is heated to more than 500 degrees Celsius and just can carries out extruded.Traditional aluminum-bar heating furnace normally adopts mode of heating, that is, high-temperature flue gas sprays into burner hearth from upper furnace, heats the aluminium bar in burner hearth.But this upper mode of heating easily causes aluminium bar bottom temp lower, finally affect the end product quality of aluminium section bar.
As Chinese patent discloses No. 202297690U a kind of Novel rapid fuel gas aluminum bar heating furnace disclosed, comprise body of heater, body of heater bearing, aluminium bar conveying roller, roller support, flue gas jet pipe, smoke conveying duct, waste heat recovery pipeline; Wherein flue gas jet pipe one end connects upper of furnace body, and the other end connects smoke conveying duct; Waste heat recovery pipeline is positioned at lower portion of furnace body and is connected with body of heater; Aluminium bar conveying roller is positioned on roller support, and aluminium bar conveying roller is through body of heater, and the axis direction of aluminium bar conveying roller is vertical with the axis direction of body of heater, and aluminium bar longitudinal arrangement is on aluminium bar conveying roller.Visible, what this Novel rapid fuel gas aluminum bar heating furnace adopted is upper mode of heating, and it is uneven that this easily causes aluminium bar to be heated.
And for example Chinese patent discloses No. 202470754U a kind of aluminum-bar heating furnace disclosed, include body of heater, also include cover on fan housing on body of heater and be placed in bottom of furnace body and its flame directly in the surface heated burner of aluminium bar to be processed, wherein, fan housing covers aluminium bar to be processed completely, this fan housing is up-small and down-big structure simultaneously, and its air duct at top is connected with the circulating fan of burner, drives the hot blast in body of heater to form negative-pressure cyclic by above-mentioned circulating fan.Although what this aluminum-bar heating furnace adopted is bottom-heated mode, but still there is following shortcoming or deficiency in it: (1), it adopts a burner, and the flame produced just directly sprays into burner hearth bottom without shunting, cause the temperature at burner hearth center too high, and the temperature of burner both sides is lower; (2), similarly, the temperature of the burner hearth leading portion of contiguous burner is higher, and lower away from the temperature of the burner hearth back segment of burner; (3), its special up-small and down-big fan housing structure can cause flue gas above aluminium bar of turning back below aluminium bar after gradually away from the upper surface of aluminium bar, thus cause the aluminium bar above contiguous burner can not get top heating.
Therefore, a kind of aluminum-bar heating furnace that aluminium bar can be made to be heated evenly, to improve the efficiency of heating surface is provided to become urgent problem in the industry.
Summary of the invention
The object of this invention is to provide heated type energy-saving aluminum rod stove of a kind of end, it can heat aluminium bar in uniform high-efficiency ground more, and energy-saving and emission-reduction.
According to the solution of the present invention, heated type energy-saving aluminum rod stove of a kind of end is provided, comprises: the heating furnace body that inside is provided with burner hearth, be located at heating furnace body front bulkhead for be located to the aft bulkhead of at least one burner of jet flames in burner hearth, contiguous heating furnace body the roof of heating furnace body exhanst gas outlet and along the longitudinal direction of heating furnace body arrange for aluminium bar being delivered to the conveyer heated in burner hearth.End heated type energy-saving aluminum rod stove comprises the fireguard between conveyer and the roof of heating furnace body further, fireguard extends to the front bulkhead of heating furnace body from the aft bulkhead of heating furnace body, form flue gas reentrant pathway between the elongated end of fireguard and the front bulkhead of heating furnace body, thus burner hearth is divided into the lower heating zone between diapire and conveyer, the upper heating zone between conveyer and fireguard and the flue gas between fireguard and roof successively along the vertical direction of heating furnace body turns back district.Wherein, the front bulkhead of heating furnace body is located at by least one burner corresponding to the position of lower heating zone, makes combustion product gases experience lower heating zone, upper heating zone, flue gas reentrant pathway and flue gas successively and turns back behind district and discharge burner hearth by exhanst gas outlet.
Preferably, end heated type energy-saving aluminum rod stove comprises further from the diapire of heating furnace body vertically the first flow distribution plate of upwards extending of direction and extending back along the longitudinal direction from the front bulkhead of heating furnace body and the second flow distribution plate be connected with the first flow distribution plate end.Space between the sidewall of front bulkhead, diapire, the first flow distribution plate, the second flow distribution plate and heating furnace body forms flame shunting room, and at least one burner is located at the front bulkhead of heating furnace body in the position corresponding to flame shunting room.
Selectively, the position distance be located between the burner of the front bulkhead of heating furnace body and the diapire of heating furnace body corresponding to flame shunting room is 1/1 to four/8th of the vertical height of heating furnace body.
Selectively, the first flow distribution plate comprise some first split channels make flame evenly spray into backward from flame shunting room along the longitudinal direction lower heating zone with from below upwards heating be positioned at the aluminium bar of burner hearth posterior segment.
Preferably, the first flow distribution plate be parallel to front bulkhead arrange and and distance between front bulkhead be 1/1 to three/5th of the longitudinal length of heating furnace body.
Selectively, the second flow distribution plate comprise some second tap holes make flame vertically direction upwards evenly spray into from flame shunting room lower heating zone with from below upwards heating be positioned at the aluminium bar of burner hearth leading portion.
Preferably, the second flow distribution plate is close to the lower surface of conveyer and is parallel to diapire setting, and the distance between the second flow distribution plate and diapire is 1/1 to two/4th of the vertical height of heating furnace body.
Preferably, be 15% ~ 30% of flame total amount by the flame of the second flow distribution plate, remaining flame sprays into lower heating zone by the first flow distribution plate.
Selectively, fireguard is parallel to diapire and arranges, distance between fireguard and diapire is 5/3 to six/4ths of the vertical height of heating furnace body, and the distance between the elongated end of fireguard and the front bulkhead of heating furnace body is 1/1 to four/6th of the longitudinal length of heating furnace body.
Wherein, at heating furnace body in a lateral direction, fireguard, the first flow distribution plate, the second flow distribution plate extend to another sidewall from a sidewall respectively.
Selectable, end heated type energy-saving aluminum rod stove comprises flue gas main pipeline and smoke backflow pipeline further, with the exhanst gas outlet of heating furnace body, flue gas main pipeline is communicated with that flue gas is expelled to chimney, smoke backflow pipeline is communicated with so that the partial fume in flue gas main pipeline is back at least one burner combustion-supporting with flue gas main pipeline.
Preferably, in smoke backflow pipeline, be provided with blower fan, for flue gas is pumped to burner.
Wherein, flame turns back to heat aluminium bar downwards from top under the space arrival fireguard aluminium bar is backward.
Preferably, the ducted flue gas of smoke backflow counts 10% ~ 30% of the amount of flue gas emission in flue gas main pipeline with volumn concentration.
Preferably, end heated type energy-saving aluminum rod stove comprises two burners of the front bulkhead being arranged at intervals at heating furnace body.
Selectable, fireguard, the first flow distribution plate, the second flow distribution plate are heat-resistance stainless steel and make, such as 310 stainless steels.
Selectively, conveyer can be conveyer belt, transfer roller or other type conveyer.
Selectively, the fuel of burner can select natural gas, coal gas, liquefied petroleum gas or fuel oil.
The invention has the beneficial effects as follows: (1), arrange the first flow distribution plate make flame spray into from flame shunting room lower heating zone with from below upwards heating be positioned at the aluminium bar of burner hearth posterior segment, arranging the second flow distribution plate makes flame spray into lower heating zone from flame shunting room upwards to heat the aluminium bar being positioned at burner hearth leading portion from below, the aluminium bar thermally equivalent of section before, during and after making; (2), fireguard is set, through space between aluminium bar flame arrive fireguard backward under turn back continue heating aluminium bar, improve the efficiency of heating surface of aluminium bar; (3), arranging smoke backflow pipeline, that the partial fume in flue gas main pipeline is back to burner is combustion-supporting, make full use of the fume afterheat that heating aluminium bar produces, decrease the growing amount of nitrogen oxide simultaneously, reduce the pollution to environment, save the energy of heating aluminium bar.
Accompanying drawing explanation
Fig. 1 shows the schematic front view of the end of the present invention heated type energy-saving aluminum rod stove.
Fig. 2 shows the schematic top plan view of the end of the present invention heated type energy-saving aluminum rod stove.
Detailed description of the invention
Please refer to Fig. 1, according to one embodiment of the present invention, end heated type energy-saving aluminum rod stove comprises: inside is provided with the heating furnace body 100 of burner hearth, be arranged at intervals at the front bulkhead 101 of heating furnace body 100 for two burners 200 to jet flames in burner hearth, the aft bulkhead 102 of contiguous heating furnace body 100 is located at the exhanst gas outlet 300 of the roof 103 of heating furnace body 100, and along the longitudinal direction of heating furnace body 100 arrange for aluminium bar 900 being delivered to the conveyer 400 heated in burner hearth, in this non-limiting embodiment, conveyer 400 is transfer roller.
Wherein, end heated type energy-saving aluminum rod stove comprises the fireguard 150 between conveyer 400 and the roof 103 of heating furnace body 100 further, fireguard 150 extends to the front bulkhead 101 of heating furnace body 100 from the aft bulkhead 102 of heating furnace body 100, flue gas reentrant pathway 140 is formed between the elongated end 155 of fireguard 150 and the front bulkhead 101 of heating furnace body 100, thus burner hearth is divided into lower heating zone 110 between diapire 104 and conveyer 400 successively along the vertical direction of heating furnace body, upper heating zone 120 between conveyer 400 and fireguard 150, and the flue gas between fireguard 150 and roof is turned back district 130.The front bulkhead 101 of heating furnace body 100 is located at by burner 200, makes combustion product gases experience lower heating zone 110, upper heating zone 120, flue gas reentrant pathway 140 and flue gas successively and turns back behind district 130 and discharge burner hearth by exhanst gas outlet 300.In this non-limiting embodiment, the fuel in burner 200 is liquefied petroleum gas.
As a kind of non-limiting embodiment, in the heating furnace body of end heated type energy-saving aluminum rod stove, also comprise flame shunting room 800.Flame shunting room 800 comprises from the diapire 104 of heating furnace body 100 vertically the first flow distribution plate 810 of upwards extending of direction and extending back along the longitudinal direction from the front bulkhead 101 of heating furnace body 100 and the second flow distribution plate 820 be connected with the first flow distribution plate 810 end.Space between the two side 105,106 of front bulkhead 101, diapire 104, first flow distribution plate 810, second flow distribution plate 820 and heating furnace body 100 forms flame shunting room 800.The front bulkhead 101 of heating furnace body 100 is located at by two burners 200 at the location interval corresponding to flame shunting room 800, the distance between the longitudinal axis of burner 200 and the diapire 104 of heating furnace body 100 is 1/5th of the vertical height of heating furnace body 100.
Wherein, fireguard 150, first flow distribution plate 810, second flow distribution plate 820 at heating furnace body 100 in a lateral direction, extends to another sidewall 106 from a sidewall 105 of heating furnace body 100 respectively.
In this non-limiting embodiment, fireguard 150, first flow distribution plate 810, second flow distribution plate 820 is made by 310 stainless steels.
Wherein, the first flow distribution plate 810 comprise some first split channels 811 make flame evenly spray into backward from flame shunting room 800 along the longitudinal direction lower heating zone 110 with from below upwards heating be positioned at the aluminium bar 900 of burner hearth posterior segment.Second flow distribution plate 820 comprises some second tap holes 821 and makes flame vertically upwards evenly spray into lower heating zone 110 from flame shunting room 800 upwards to heat the aluminium bar 900 being positioned at burner hearth leading portion from below in direction.
In this non-limiting embodiment, be about 20% of flame total amount by the flame of the second flow distribution plate 820, remaining flame sprays into lower heating zone 110 by the first flow distribution plate 810.
In this non-limiting embodiment, the first flow distribution plate 810 be parallel to front bulkhead 101 arrange and and distance between front bulkhead be about 1/3rd of the longitudinal length of heating furnace body 100.The lower surface of the contiguous conveyer 400 of the second flow distribution plate 820 and be parallel to diapire 104 and arrange, the distance between the second flow distribution plate 820 and diapire 104 is about 1/3rd of the vertical height of heating furnace body 100.Fireguard 150 is parallel to diapire 104 and arranges, and the distance between fireguard 150 and diapire is about 4/5ths of the vertical height of heating furnace body 100.Distance between the elongated end 155 of fireguard 150 and the front bulkhead 101 of heating furnace body 100 is about 1/6th of the longitudinal length of heating furnace body 100.
In this non-limiting embodiment, end heated type energy-saving aluminum rod stove comprises flue gas main pipeline 500 and smoke backflow pipeline 600 further, with the exhanst gas outlet 300 of heating furnace body, flue gas main pipeline 500 is communicated with that flue gas is expelled to chimney (not shown), smoke backflow pipeline 600 is communicated with so that the partial fume in flue gas main pipeline 500 is back to burner 200 combustion-supporting with flue gas main pipeline 500.
Wherein, be provided with blower fan 700 in smoke backflow pipeline 600, for flue gas is pumped to burner 200, wherein, the flue gas in smoke backflow pipeline 600 counts about 20% of the amount of flue gas emission in flue gas main pipeline 500 with volumn concentration.
Fig. 2 shows the schematic top plan view of the end of the present invention heated type energy-saving aluminum rod stove, and for clarity sake, subelement is wherein not shown.As shown in Figure 2, in this non-limiting embodiment, have employed spaced two burners 200.
In use, spaced two burners 200, to jet flames in burner hearth, make the homogeneous heating in a lateral direction at burner hearth.Further, the flame that two burners 200 spray into burner hearth is divided into flame backward and flame upwards via flame shunting room 800, makes aluminium bar 900 all homogeneous heating of section before, during and after in burner hearth.In addition, flame is turned back under the space arrival fireguard 150 aluminium bar 900 is backward, again heats aluminium bar 900 downwards from top, substantially increases the efficiency of heating surface.
Although describe the preferred embodiment of the present invention in detail at this, but should be understood that the present invention is not limited to the concrete structure described in detail and illustrate here, other modification and variant can be realized when not departing from the spirit and scope of the invention by those skilled in the art.Such as, the front bulkhead of heating furnace body can arrange burner number according to actual conditions, or, adjust the distance between the elongated end of the distance between distance between the first flow distribution plate and heating furnace body front bulkhead, the second flow distribution plate heating furnace body diapire, the distance between fireguard and heating furnace body diapire or fireguard and heating furnace body front bulkhead according to service condition.In addition, the temperature of system or pressure and other parameters suitably can be chosen in scope disclosed in this invention according to concrete application conditions.
Claims (10)
1. a heated type energy-saving aluminum rod stove at the bottom of, comprising: the heating furnace body that inside is provided with burner hearth, be located at described heating furnace body front bulkhead for be located to the aft bulkhead of at least one burner of jet flames in described burner hearth, contiguous described heating furnace body the roof of described heating furnace body exhanst gas outlet and along the longitudinal direction of described heating furnace body arrange for aluminium bar being delivered to the conveyer heated in described burner hearth;
It is characterized in that:
Heated type energy-saving aluminum rod stove of the described end comprises the fireguard between described conveyer and the described roof of described heating furnace body further, described fireguard extends to the described front bulkhead of described heating furnace body from the described aft bulkhead of described heating furnace body, flue gas reentrant pathway is formed between the elongated end of described fireguard and the described front bulkhead of described heating furnace body, thus described burner hearth is divided into lower heating zone between described diapire and described conveyer successively along the vertical direction of described heating furnace body, upper heating zone between described conveyer and described fireguard, and the flue gas between described fireguard and described roof is turned back district, wherein, the described front bulkhead of described heating furnace body is located at by least one burner described corresponding to the position of described lower heating zone, make combustion product gases experience described lower heating zone, described upper heating zone, described flue gas reentrant pathway and described flue gas successively and turn back behind district and discharge described burner hearth by described exhanst gas outlet.
2. the end as claimed in claim 1 heated type energy-saving aluminum rod stove, it is characterized in that, heated type energy-saving aluminum rod stove of the described end comprises from the described diapire of described heating furnace body vertically the first flow distribution plate of upwards extending of direction and extending back along the longitudinal direction from the described front bulkhead of described heating furnace body and the second flow distribution plate be connected with described first flow distribution plate end further, described front bulkhead, described diapire, described first flow distribution plate, space between the sidewall of described second flow distribution plate and described heating furnace body forms flame shunting room, at least one burner described is located at the described front bulkhead of described heating furnace body in the position corresponding to described flame shunting room.
3. the end as claimed in claim 2 heated type energy-saving aluminum rod stove, it is characterized in that, described first flow distribution plate comprises some first split channels and makes flame evenly spray into described lower heating zone along the longitudinal direction backward from described flame shunting room upwards to heat the aluminium bar being positioned at described burner hearth posterior segment from below.
4. the end as claimed in claim 3 heated type energy-saving aluminum rod stove, is characterized in that, described first flow distribution plate be parallel to described front bulkhead arrange and and distance between described front bulkhead be 1/1 to three/5th of the longitudinal length of described heating furnace body.
5. the end as claimed in claim 2 heated type energy-saving aluminum rod stove, it is characterized in that, described second flow distribution plate comprises some second tap holes and makes flame vertically upwards evenly spray into described lower heating zone from described flame shunting room upwards to heat the aluminium bar being positioned at described burner hearth leading portion from below in direction.
6. the end as claimed in claim 5 heated type energy-saving aluminum rod stove, it is characterized in that, described second flow distribution plate is close to the lower surface of described conveyer and is parallel to the setting of described diapire, and the distance between described second flow distribution plate and described diapire is 1/1 to two/4th of the vertical height of described heating furnace body.
7. the end as claimed in claim 1 heated type energy-saving aluminum rod stove, it is characterized in that, described fireguard is parallel to described diapire and arranges, distance between described fireguard and described diapire is 5/3 to six/4ths of the vertical height of described heating furnace body, and the distance between the described elongated end of described fireguard and the described front bulkhead of described heating furnace body is 1/1 to four/6th of the longitudinal length of described heating furnace body.
8. the end heated type energy-saving aluminum rod stove according to any one of claim 1 ~ 7, it is characterized in that, comprise flue gas main pipeline and smoke backflow pipeline further, with the described exhanst gas outlet of described heating furnace body, described flue gas main pipeline is communicated with that flue gas is expelled to chimney, described smoke backflow pipeline is communicated with the partial fume in described flue gas main pipeline to be back at least one burner described combustion-supporting with described flue gas main pipeline.
9. the end as claimed in claim 8 heated type energy-saving aluminum rod stove, it is characterized in that, the ducted flue gas of described smoke backflow counts 10% ~ 30% of the amount of flue gas emission in described flue gas main pipeline with volumn concentration.
10. the end heated type energy-saving aluminum rod stove according to any one of claim 1 ~ 7, is characterized in that, heated type energy-saving aluminum rod stove of the described end comprises two burners of the described front bulkhead being arranged at intervals at described heating furnace body.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510760293.8A CN105333730B (en) | 2015-11-08 | 2015-11-08 | Bottom heated type energy-saving aluminum rod furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510760293.8A CN105333730B (en) | 2015-11-08 | 2015-11-08 | Bottom heated type energy-saving aluminum rod furnace |
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| CN105333730A true CN105333730A (en) | 2016-02-17 |
| CN105333730B CN105333730B (en) | 2019-03-08 |
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| CN201510760293.8A Active CN105333730B (en) | 2015-11-08 | 2015-11-08 | Bottom heated type energy-saving aluminum rod furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109612284A (en) * | 2018-11-28 | 2019-04-12 | 佛山市宏富达机械设备有限公司 | A kind of aluminum-bar heating furnace with waste gas recovering device |
| CN110044176A (en) * | 2019-05-23 | 2019-07-23 | 郑州釜鼎热能技术有限公司 | A kind of burner of the tunnel oven of the vertical upper spraying, combustion of premixed flow |
| CN113091467A (en) * | 2021-03-22 | 2021-07-09 | 安徽科蓝特铝业有限公司 | Heat recovery process for heating aluminum bar |
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| EP1172621A1 (en) * | 2000-07-11 | 2002-01-16 | ELTI S.r.l. | High-productivity steel heating furnace, particularly for rolling plants |
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| CN204388593U (en) * | 2014-12-30 | 2015-06-10 | 广东摩德娜科技股份有限公司 | A kind of novel temperature difference control structure on energy-saving furnace |
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| EP1172621A1 (en) * | 2000-07-11 | 2002-01-16 | ELTI S.r.l. | High-productivity steel heating furnace, particularly for rolling plants |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109612284A (en) * | 2018-11-28 | 2019-04-12 | 佛山市宏富达机械设备有限公司 | A kind of aluminum-bar heating furnace with waste gas recovering device |
| CN110044176A (en) * | 2019-05-23 | 2019-07-23 | 郑州釜鼎热能技术有限公司 | A kind of burner of the tunnel oven of the vertical upper spraying, combustion of premixed flow |
| CN113091467A (en) * | 2021-03-22 | 2021-07-09 | 安徽科蓝特铝业有限公司 | Heat recovery process for heating aluminum bar |
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| CN105333730B (en) | 2019-03-08 |
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Effective date of registration: 20210715 Address after: Room 526, 5 / F, block D, 39 Ruihe Road, Huangpu District, Guangzhou, Guangdong 510535 Patentee after: Guangzhou Herui energy conservation and Environmental Protection Technology Co.,Ltd. Address before: Room 205, block a, No.168 Congyun Road, Baiyun District, Guangzhou, Guangdong 510420 Patentee before: Heruida (Guangdong) Integrated Energy Services Co.,Ltd. |