CN105327842B - A kind of aluminium alloy extrusions powder spraying, curing stove - Google Patents
A kind of aluminium alloy extrusions powder spraying, curing stove Download PDFInfo
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- CN105327842B CN105327842B CN201510824028.1A CN201510824028A CN105327842B CN 105327842 B CN105327842 B CN 105327842B CN 201510824028 A CN201510824028 A CN 201510824028A CN 105327842 B CN105327842 B CN 105327842B
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Abstract
The present invention, which is disclosed, is provided with combustion system, curing room, circulating fan unit, exhaust emission system, auto temperature controlled system and material transmission system, lock wind air curtain unit in a kind of aluminium alloy extrusions powder spraying, curing stove, the curing oven；The solidification furnace bottom is provided with an aluminium section bar furnace entrance and aluminium section bar plug for outlet, the material transmission system from aluminium section bar furnace entrance to curing room inside bending extend to aluminium section bar plug for outlet, the lock wind air curtain unit is arranged at curing oven top and close to aluminium section bar furnace entrance and aluminium section bar plug for outlet, and the wind speed range of the lock wind air curtain unit is 3.0 ~ 5.5m/s.Wind speed is adjusted by installing lock wind air curtain unit by the present invention, and the wind speed range for controlling to lock wind air curtain unit is 3.0 5.5 m/s, so as to effectively improve sprayed product yield rate, generation and the stove prepurging number of times of ashes particle are reduced, production efficiency is improved, energy resource consumption is saved.
Description
Technical field
The present invention relates to solidification equipment field, more particularly to a kind of aluminium alloy extrusions powder spraying, curing stove.
Background technology
Powder spray section bar has that energy consumption is low, color category abundant, powder recoverable, without there is solvent environment dirty
The good characteristics such as dye and good dicoration and decay resistance, occupy very important status in architectural aluminum section, its
Yield has accounted for the half of the country of architectural aluminum section total output.With automation and the fast development of informationization technology, automation is vertical
The formula powder production line that dusts is obtained a wide range of applications in aluminum profile industry.Automatic vertical powder coating production line control system
Mainly by preprocessing system, induction system, powder spraying system（Containing powder spraying system and powder recovery system）, solidification equipment（Containing automatic
Temperature regulating device and ventilation unit）, several parts compositions such as air compressor.Intelligentized control method is realized by PLC, by central control computer
Carry out online monitoring and operation, and by master system carry out it is online it is long-range, on the spot monitoring, data collection and analysis,
Curve is achieved, report generation.
Curing process is as one of important procedure of powder coating process, and it is that the aluminium section bar that completion is dusted is carried out that it, which is acted on,
Levelling, solidification, and prevent the impurity such as dust stick or dry linting and influence coating quality.Curing process is applied according to different producers
Depending on material and product type, temperature is typically between 180-250 DEG C, and hardening time is 15-25 minutes.Painting quality and curing oven
Temperature and hardening time have important relation.
Curing oven as curing process capital equipment, including heating system, temperature monitoring system, heated air circulation device,
Transmission system etc. is constituted.Heating system is divided into fuel oil type, coal and electrothermal again from heat energy.Fuel oil type and coal temperature
Degree control is inaccurate, but production cost is low；The heating source of electrothermal can pull for resistance wire, Far-infrared carbon SiClx, quartz heating-pipe,
Mild steel heating tube etc., temperature is accurately controlled, but energy consumption cost is high.Temperature controller is set in stove, by temperature control point
Sample to control in-furnace temperature, temperature controller can be communicated with PLC, and temperature, which is set on temperature controller, can set.It is logical
Excess temperature sampled point, in-furnace temperature can be monitored at any time, and can also wrirte music line analysis with upper bit walk, and accounting logging is to make to put on record.
Induction system mainly includes carrier chain and van etc..Large automatic spray-painting production line uses suspension type carrier chain
It is more, directly section bar after the completion of spraying can be transported in curing oven.Conveying chain lubrication good transmission is steadily to ensure there is good
The key of coating, it is necessary to using fire-resistant lubricants (molybdenum disulfide or high temperature resistant calcium-base grease).Meanwhile, carrier chain need to be mixed up
Suitable motor speed, it is ensured that enough hardening times.
In order to which keeping temperature uniformly typically will also have heated air circulation device in curing oven.Heated air circulation device typically should be
Just started the cycle over when temperature is higher than 150 DEG C in curing oven.Curing oven is generally equipped with automatic temperature control instrument, automatic timing instrument and to Times
Alarm device（Only it is furnished with automatic thermostatic device by formula curing oven, hardening time is determined by the carrier chain speed of service）.
Vertical powder spray-painting production line curing oven is after long-term use, and finished section bar surface easily produces ashes particle,
So as to cause product to do over again or scrap.Particularly smooth surface powder section bar, because Surface Quality requires higher, the stove produced after solidification
Ash particle has significant effect to product quality.If vertical powder spray-painting production line continuously produced smooth surface powder section bar more than 7 days
Ashes are just obvious, and Surface of profile just easily produces ashes particle, causes product to do over again or scrap.In normal productive process
In, it is accomplished by within every 5 to 7 days being required for first cooling before prepurging, each prepurging, needs heating after prepurging again, each prepurging is required for
5-6 workman expends 8 hours or so time, causes the serious waste of the artificial and energy.Meanwhile, frequently prepurging have impact on production
Progress, reduces production efficiency, adds production cost.
According to relevant statistics, the learies caused by ashes particle account for up to the 72% of total powder spray defective work,
It is the main reason of vertical powder spray-painting production line product rejection.Meanwhile, average prepurging every month of the production line 4 times, every time
It is time-consuming about 8 hours, production efficiency is reduced, continuous production is influenceed.
Therefore, prior art has yet to be improved and developed.
The content of the invention
In view of above-mentioned the deficiencies in the prior art, it is an object of the invention to provide a kind of aluminium alloy extrusions powder spraying, curing
Stove, it is intended to which it is low to solve existing sprayed product yield rate, easily produces ashes particle, low production efficiency, the problem of energy resource consumption is big.
Technical scheme is as follows：
A kind of aluminium alloy extrusions powder spraying, curing stove, wherein, be provided with the curing oven combustion system, curing room,
Circulating fan unit, exhaust emission system, auto temperature controlled system and material transmission system, lock wind air curtain unit；The curing oven
Bottom is provided with an aluminium section bar furnace entrance and aluminium section bar plug for outlet, and the material transmission system is from aluminium section bar furnace entrance to curing room
Inside bending extends to aluminium section bar plug for outlet, and the circulating fan unit is connected to combustion system and positioned at the solidification furnace roof
End, the heat for combustion system to be produced is brought into curing room from top to bottom, and the auto temperature controlled system, which is provided with, to be passed through
Temperature control point inside to curing room, controls curing room internal temperature, and the exhaust emission system is used for the waste gas of generation is outside
Discharge, the lock wind air curtain unit is arranged at curing oven top and close to aluminium section bar furnace entrance and aluminium section bar plug for outlet, the lock
The wind speed range of wind air curtain unit is 3.0 ~ 5.5m/s.
Described aluminium alloy extrusions powder spraying, curing stove, wherein, the curing oven is provided with curing oven inwall, curing oven
Curing oven heat-insulation layer between outer wall and curing oven inwall and solidification furnace outer wall；The curing oven inwall uses δ 0.95mm galvanized sheets,
Solidify furnace outer wall and prick iron plate baking vanish using δ 0.95mm are cold, curing oven heat-insulation layer uses δ 150mm 100K rock wools.
Described aluminium alloy extrusions powder spraying, curing stove, wherein, the curing room is provided with solidification chamber interior walls, curing room
Curing room heat-insulation layer between outer wall and solidification chamber interior walls and solidification chamber outer wall；The solidification chamber interior walls are stainless using δ 1.85mm thickness
Steel plate, solidification chamber outer wall uses δ 1.15mm iron plates, and curing room heat-insulation layer uses δ 50mm alumina silicate and δ 150mm 100K rock wools.
Described aluminium alloy extrusions powder spraying, curing stove, wherein, the circulating fan unit is by the of 5 power 3kW
One blower fan is constituted.
Described aluminium alloy extrusions powder spraying, curing stove, wherein, the air quantity of first blower fan is 30000m3/ h, wind
Press as 900Pa.
Described aluminium alloy extrusions powder spraying, curing stove, wherein, the lock wind air curtain unit is by 5 power 1.5kW's
Second blower fan is constituted, and the air quantity of second blower fan is 45000 m3/h。
Described aluminium alloy extrusions powder spraying, curing stove, wherein, the exhaust emission system is provided with blast pipe, described
Blast pipe uses δ 0.75mm galvanized sheets.
Described aluminium alloy extrusions powder spraying, curing stove, wherein, the temperature control is PID single-point temperature controls, the temperature control point
It is provided with 4.
Described aluminium alloy extrusions powder spraying, curing stove, wherein, the material transmission system is in curing oven by outstanding
Hanging chain is transmitted.
Described aluminium alloy extrusions powder spraying, curing stove, wherein, the chain of the material transmission system is by 3 power
1.5kW motor driving.
Beneficial effect：By above-mentioned curing oven, sprayed product yield rate can be effectively improved, ashes particle is reduced and produces and clear
Heat number, improves production efficiency, saves energy resource consumption.
Brief description of the drawings
Fig. 1 is a kind of structural representation of aluminium alloy extrusions powder spraying, curing stove preferred embodiment of the invention.
Embodiment
The present invention provides a kind of aluminium alloy extrusions powder spraying, curing stove, to make the purpose of the present invention, technical scheme and effect
Fruit is clearer, clear and definite, and the present invention is described in more detail below.It should be appreciated that specific embodiment described herein is only
Only to explain the present invention, it is not intended to limit the present invention.
Referring to Fig. 1, Fig. 1 is a kind of structural representation of aluminium alloy extrusions powder spraying, curing stove preferred embodiment of the invention
Figure, as shown in figure 1, be provided with the curing oven combustion system, curing room 10, circulating fan unit 7, exhaust emission system 8,
Auto temperature controlled system 11 and material transmission system 12, lock wind air curtain unit 13；The solidification furnace bottom is provided with an aluminium section bar and entered
Fire door 2 and aluminium section bar plug for outlet 1, the material transmission system 12 from aluminium section bar furnace entrance 2 to curing room 10 inside bend extension
To aluminium section bar plug for outlet 1, the circulating fan unit 7 is connected to combustion system and positioned at the curing oven top, for that will fire
The heat that burning system is produced is brought into curing room 10 from top to bottom, and the auto temperature controlled system 12, which is provided with, is passed into curing room
Temperature control point inside 10, controls the internal temperature of curing room 10, and the exhaust emission system 8 is used to outwards arrange the waste gas of generation
Go out, the lock wind air curtain unit 13 is arranged at curing oven top and close to aluminium section bar furnace entrance 2 and aluminium section bar plug for outlet 1, described
The wind speed range for locking wind air curtain unit 13 is 3.0 ~ 5.5m/s.
The wind speed of the aluminium section bar furnace entrance 2 of curing oven and the lock wind air curtain unit 13 of aluminium section bar plug for outlet 1 is influence ashes
The key factor of particle.The present invention near the aluminium section bar furnace entrance 2 of curing oven and aluminium section bar plug for outlet 1 by installing lock wind wind
Curtain unit 13, so that wind speed to be adjusted, and solidification effect and the product because of the generation of ashes particle under the different wind speed of statistical analysis
Scrappage.As a result show：When wind speed is excessive, feed end is not formed can completely the bisque of thawing and blown off, severe contamination is solid
Change stove and enter plug for outlet（That is aluminium section bar furnace entrance 2 and aluminium section bar plug for outlet 1）Cause clinker excessive；, can be because of wind when wind speed is too low
The relatively low resistance of speed is small, and lock wind effect is poor, causes the cold air of 2 mouthfuls of aluminium section bar furnace entrance to be brought into curing oven and aluminium section bar plug for outlet
1 is taken out of the hot gas in curing oven, and powder spray paint coatings can be alternatively formed a kind of chemical combination as snowflake because of cold-hot wind
Thing（I.e. ashes are excessive）No matter can all cause ashes particle after powder spray paint solidification to scrap more than 2 points of clinkers of the above or ashes,
It is to influence the main cause of ashes particle.Therefore, suitable wind speed can effectively reduce ashes particle.Lock wind air curtain of the present invention
The wind speed range of unit 13 is controlled between 3.0-5.5 m/s, in the wind speed range, can effectively improve sprayed product finished product
Rate, reduces ashes particle and produces and prepurging number of times, improve production efficiency, save energy resource consumption.Specifically, the lock wind wind curtain machine
Group 13 is made up of 5 power 1.5kW the second blower fan, and the air quantity of second blower fan is 45000 m3/h.The present invention passes through lock
Wind air curtain unit 13 can make high temperature air in combustion flue carry out above and below convection current, suppress the outer cold air of curing oven and enter in stove and solidification
Hot-air is overflowed outside stove in stove.
Specifically, the aluminium section bar furnace entrance 2 of curing oven of the present invention and aluminium section bar plug for outlet 1 each one, aluminium section bar enters
Fire door 2 and the size of aluminium section bar plug for outlet 1 are W45mm × H8200mm.Aluminium section bar furnace entrance 2 and aluminium section bar plug for outlet 1 are normal
Do not closed in production process, to ensure the continuity of curing process process.
Specifically, the size of the curing oven is 11800mm × W9185mm × H9000mm.The curing oven is provided with solid
Change the curing oven heat-insulation layer 4 between stove inwall 5, solidification furnace outer wall 3 and curing oven inwall 5 and solidification furnace outer wall 3；In the curing oven
Wall 5 uses δ 0.95mm galvanized sheets, and solidification furnace outer wall 3 pricks iron plate baking vanish using δ 0.95mm are cold, and curing oven heat-insulation layer 4 uses δ
150mm 100K rock wools.
Specifically, the curing room 10 is provided with solidification chamber interior walls, solidification chamber outer wall and solidification chamber interior walls and solidification is outdoor
Curing room heat-insulation layer between wall（Not shown in figure）；The solidification chamber interior walls solidify chamber outer wall using the thick stainless steel plates of δ 1.85mm
Using δ 1.15mm iron plates, curing room heat-insulation layer uses δ 50mm alumina silicate and δ 150mm 100K rock wools.
Specifically, the combustion system includes burner hearth 6, is arranged at the combustor 9, igniter and supply of the one end of burner hearth 6
System（Not shown in figure）.The installed power of combustor 9 is 600,000 kilocalories, is heated using natural gas as fuel.It is described
Burner hearth 6 uses diameter phi 60mm steel pipes, the wall thickness 2.5mm of the steel pipe.
Specifically, the circulating fan unit 7 is made up of 5 power 3kW the first blower fan.The air quantity of first blower fan
For 30000m3/ h, blast is 900Pa.The circulating fan unit 7 is arranged on curing oven top, arranged side by side with burner hearth 6.It is described to follow
The heat that ring blower fan unit 7 is used to from top to bottom produce burner hearth 6 by circulated air is brought into curing furnace bottom, by being arranged at
The grid of bottom of combustion chamber in curing oven（Not shown in figure）Heat exchange is carried out with curing room 10, it is uniform with keeping temperature.
Specifically, the exhaust emission system 8 is provided with blast pipe, and the blast pipe uses δ 0.75mm galvanized sheets.It is described
Exhaust emission system 8 by the way of discharging naturally, and floss hole is positioned close to material inlet pipe, can prevent that heat is empty in curing oven
Gas outwards overflows, and influences shopwork environment.
Specifically, the temperature control of the auto temperature controlled system 11 is PID single-point temperature controls, and the temperature control point is provided with 4.From room
Temperature rise to operating temperature about 45 minutes, outer wall surrounding mean temperature is no more than 10 DEG C of room temperature.Overtemperature prote is set to switch to burning
System is protected, and is met overtemperature or fan trouble and is closed combustion system in time and concurrently speak visual alarm, while setting low temperature
Signalling alarm equipment.
Specifically, the material transmission system 12 is transmitted in curing oven by suspension type chain.The material is passed
The chain of defeated system 12 is driven by 3 power 1.5kW motor.
The workflow of the above-mentioned curing oven of the present invention is：Vertical hanging, the aluminium section bar hung are punched in aluminium section bar one end
Enter aluminium section bar in curing oven, curing oven by aluminium section bar furnace entrance 2 to carry out by the suspension type chain of material transmission system 12
It is sent in curing room 10.Hardening time is adjusted by the speed of suspension type chain, usually 10min.Solidification temperature is led to
Cross auto temperature controlled system 11 to be adjusted, usually 200 DEG C.After the completion of solidification, lower row is entered by aluminium section bar plug for outlet 1 and picked up
Expect area（Not shown in figure）.
By above-mentioned curing oven of the invention, sprayed product yield rate can be effectively improved, generation and the stove of ashes particle is reduced
Prepurging number of times, improves production efficiency, saves energy resource consumption（Need to rise again because being required for first cooling before each prepurging, after prepurging
Temperature）.By taking 30000 tons/year of vertical spraying production line as an example, after above-mentioned curing oven of the invention：
（1）Lock the wind speed range 3.0-5.5 m/s of wind air curtain unit.In this wind speed range, produced because of ashes particle
Scrap and account for the ratio of total defective work and be reduced to 28%-32% by 72%.Ashes particle learies are reduced to by the 9000 kg/ months
The 1000 kg/ months, 500,000 yuan of processing charges can be saved every year.
（2）Save the energy and cost of labor：The prepurging frequency is reduced to monthly 2 times by monthly 4 times, annual to save heating combustion
Gas expense is with 10000 yuan；It monthly can save energy labor hour 1152 hours, save 28800 yuan of cost of labor.
（3）Improve production line efficiency：Monthly the prepurging frequency is reduced to 2 times by 4 times, and each prepurging is required for 8 hours or so
Time, year saves 192 hours prepurging time, can improve production efficiency 3.2%.
In summary, a kind of aluminium alloy extrusions powder spraying, curing stove that the present invention is provided, the present invention is by installing lock wind
Air curtain unit, wind speed is adjusted, the wind speed range 3.0-5.5 m/s of control lock wind air curtain unit, so as to effectively improve
Sprayed product yield rate, reduces generation and the stove prepurging number of times of ashes particle, improves production efficiency, save energy resource consumption.
It should be appreciated that the application of the present invention is not limited to above-mentioned citing, for those of ordinary skills, can
To be improved or converted according to the above description, all these modifications and variations should all belong to the guarantor of appended claims of the present invention
Protect scope.
Claims (10)
1. a kind of aluminium alloy extrusions powder spraying, curing stove, it is characterised in that combustion system, solidification are provided with the curing oven
Room, circulating fan unit, exhaust emission system, auto temperature controlled system and material transmission system, lock wind air curtain unit；The solidification
Furnace bottom is provided with an aluminium section bar furnace entrance and aluminium section bar plug for outlet, and the material transmission system is from aluminium section bar furnace entrance to solidification
Chamber interior bending extends to aluminium section bar plug for outlet, and the circulating fan unit is connected to combustion system and positioned at the solidification furnace roof
End, the heat for combustion system to be produced is brought into curing room from top to bottom, and the auto temperature controlled system, which is provided with, to be passed through
Temperature control point inside to curing room, controls curing room internal temperature, and the exhaust emission system is used for the waste gas of generation is outside
Discharge, the lock wind air curtain unit is arranged at curing oven top and close to aluminium section bar furnace entrance and aluminium section bar plug for outlet, the lock
The wind speed range of wind air curtain unit is 3.0 ~ 5.5m/s.
2. aluminium alloy extrusions powder spraying, curing stove according to claim 1, it is characterised in that the curing oven is provided with
Curing oven heat-insulation layer between curing oven inwall, solidification furnace outer wall and curing oven inwall and solidification furnace outer wall；The curing oven inwall
Using δ 0.95mm galvanized sheets, solidification furnace outer wall pricks iron plate baking vanish using δ 0.95mm are cold, and curing oven heat-insulation layer uses δ 150mm
100K rock wools.
3. aluminium alloy extrusions powder spraying, curing stove according to claim 1, it is characterised in that the curing room is provided with
Solidify the curing room heat-insulation layer between chamber interior walls, solidification chamber outer wall and solidification chamber interior walls and solidification chamber outer wall；The solidification chamber interior walls
Using the thick stainless steel plates of δ 1.85mm, solidification chamber outer wall uses δ 1.15mm iron plates, curing room heat-insulation layer using δ 50mm alumina silicate and
δ 150mm 100K rock wools.
4. aluminium alloy extrusions powder spraying, curing stove according to claim 1, it is characterised in that the circulating fan unit
It is made up of 5 power 3kW the first blower fan.
5. aluminium alloy extrusions powder spraying, curing stove according to claim 4, it is characterised in that the wind of first blower fan
Measure as 30000m3/ h, blast is 900Pa.
6. aluminium alloy extrusions powder spraying, curing stove according to claim 1, it is characterised in that the lock wind air curtain unit
It is made up of 5 power 1.5kW the second blower fan, the air quantity of second blower fan is 45000 m3/h。
7. aluminium alloy extrusions powder spraying, curing stove according to claim 1, it is characterised in that the exhaust emission system
Blast pipe is provided with, the blast pipe uses δ 0.75mm galvanized sheets.
8. aluminium alloy extrusions powder spraying, curing stove according to claim 1, it is characterised in that the temperature control is that PID is mono-
Point temperature control, the temperature control point is provided with 4.
9. aluminium alloy extrusions powder spraying, curing stove according to claim 1, it is characterised in that the material transmission system
Transmitted in curing oven by suspension type chain.
10. aluminium alloy extrusions powder spraying, curing stove according to claim 1, it is characterised in that the material transferring system
The chain of system is driven by 3 power 1.5kW motor.
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| CN201510824028.1A CN105327842B (en) | 2015-11-24 | 2015-11-24 | A kind of aluminium alloy extrusions powder spraying, curing stove |
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| CN201510824028.1A CN105327842B (en) | 2015-11-24 | 2015-11-24 | A kind of aluminium alloy extrusions powder spraying, curing stove |
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| CN105327842B true CN105327842B (en) | 2017-10-24 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109986768A (en) * | 2017-12-31 | 2019-07-09 | 江苏开能华宇环保设备有限公司 | The vertical curing oven of integrated glass fiber reinforced plastic tank |
| CN109130026A (en) * | 2018-09-10 | 2019-01-04 | 南京永亮炉业有限公司 | It is a kind of to mix cold wind cooling curing oven automatically |
| CN116809353A (en) * | 2023-06-25 | 2023-09-29 | 佛山市三水凤铝铝业有限公司 | Curing oven and use method thereof |
| CN117299502A (en) * | 2023-09-25 | 2023-12-29 | 佛山市三水凤铝铝业有限公司 | Self-cleaning type spraying curing oven |
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| JPH07270072A (en) * | 1994-03-31 | 1995-10-20 | Trinity Ind Corp | Dryer |
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| US5233763A (en) * | 1990-12-14 | 1993-08-10 | Minnie Jr Clarence O | Sludge drying apparatus |
| CN2873324Y (en) * | 2006-02-27 | 2007-02-28 | 福建方明钢铁有限公司 | Multiple coating multiple baking single hardening furnace for color coating production line |
| CN102120211A (en) * | 2010-12-21 | 2011-07-13 | 苏州博恒浩科技有限公司 | Air curtain sealing device for color-coated board curing oven |
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