CN2040242U - Low-temp. drying stove - Google Patents
Low-temp. drying stove Download PDFInfo
- Publication number
- CN2040242U CN2040242U CN 88201767 CN88201767U CN2040242U CN 2040242 U CN2040242 U CN 2040242U CN 88201767 CN88201767 CN 88201767 CN 88201767 U CN88201767 U CN 88201767U CN 2040242 U CN2040242 U CN 2040242U
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- drying
- stove
- drying chamber
- chamber
- low temperature
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Abstract
The utility model provides a novel low-temp. drying stove belonging to the field of the industrial stove, which is suitable for the material drying, particularly for the skin drying of the cast cavity and the surface coating drying of the resin sand mold cavity. The low-temp. Drying stove is mainly composed of a combustion chamber, a drying chamber, a hot air circulating system, a trolley and a safe exhausting system. The essential technical character is that the hot air supply system of the hot air circulating system comprises a plurality of uniformly distributed nozzles positioned at the upper part of the drying chamber, the air returning systems comprises a plurality of longitudinally distributed air doors with tunable opening at the lower part of the two side walls of the drying chamber, the temperature in the stove is controlled between 180 DEG C and 220 DEG C, and the temperature difference in each part of the stove is smaller than 5 DEG C. The utility model has the advantages of high speed and energy saving.
Description
The utility model relates to the drying oven of a kind of the article surface oven dry that is used for, the particularly oven dry of casting mold mold cavity surface and the oven dry of resin sand die cavity surface coating.
In article oven dry operation, particularly the oven dry of kiln formula is generally adopted in the mould drying in casting technique, is about to material or casting mold and is contained on the chassis, draws in and closes the wicket heating, drying in the kiln.In recent years, because the extensive employing of phenolic sand molding new technology has proposed a problem of only the casting mold mold cavity surface being dried.This is because resin sand itself has from hardware features, generally need not dry, and only need the coating that mold cavity surface is brushed is dried.For also existing the problem of only requiring the oven dry surface in other article oven dry operation.
If adopt the characteristics that kiln formula drying oven can not the protuberate oven dry, but, both wasted the unnecessary energy with casting mold or the whole heating of material, make drying rate very slow again, can not satisfy the requirement of production." principle of heating furnace drying oven and structure " book that Chinese industrial publishing house published in 1961 has been introduced a kind of " forced draft heating furnace " for the 103rd～104 page, find out from its simple introduction and accompanying drawing, although it can realize the forced circulation of thermal current, the loop direction of thermal current is from the bottom to top.And casting mold is when drying in stove, because formative technology decision mold cavity surface must be up, circulating current so from the bottom to top just can not make complex-shaped object or the darker surface of die cavity reach sufficient heat exchange effectively, thereby cause the each several part drying rate inhomogeneous; Moreover the return air amount of the air return system of this heating furnace is unadjustable, is difficult to the different requirements of each several part temperature in interior bulk temperature of control stove and the stove; And the structure of stove is old-fashioned traditional structure.If any making the furnace construction complexity into and out of fire door, operation inconvenience; Body of heater is built into by refractory brick, intensity difference and construction trouble; It is too simple to add narration, and temperature, air velocity etc. in the stove are not all introduced, and therefore can't implement.
Task of the present utility model is exactly to be the article surface oven dry, provides a kind of improved low temperature drying stove in particular for oven dry of casting mold mold cavity surface and the oven dry of resin-bonded sand cast form mold cavity surface coating.
This task is to realize with following technical scheme:
Drying oven is made up of the chassis and security exhaust system five parts of combustion chamber, drying chamber, hot air circulating system, delivery article or casting mold.The combustion chamber is positioned at the upper right side of drying chamber; Hot air circulating system comprises hot wind supply system and air return system two parts; The chassis of delivery article or casting mold is contained in the drying chamber and can be along the longitudinal movement.This drying oven mainly contains 2 points with the difference of prior art:
1, the hot wind supply system in the hot air circulating system draws hot blast by air-introduced machine from the combustion chamber, enter bellows by the road, bellows are positioned at the top of drying chamber, be slightly less than drying chamber, many equally distributed nozzles are arranged at the bellows bottom, and this nozzle is because quantity is many, and evenly distribution on the drying chamber cross section, therefore the thermal current that sprays at a high speed downwards can heat equably to quilt oven dry thing.
2, the air return system in the hot air circulating system is made up of air door, the return air pipeline of a plurality of adjustable opening sizes that longitudinally distribute under the drying chamber two side, sends used beat wind back to combustion chamber.With energy savings.Regulate the aperture size of each air door, just can control the temperature in the drying chamber.And owing to the air door of adjustable opening longitudinally distributes, and quantity is a lot, therefore can turn down import and export near throttle opening from drying chamber, and the throttle opening of centre is transferred greatly, and temperature is even everywhere in the drying chamber to reach.
Fig. 1 is the elevation cross-sectional view of low temperature drying stove
Fig. 2 is the side cutaway view of low temperature drying stove
Below in conjunction with drawings and Examples the utility model is described in further details.
Combustion chamber 1 is positioned at the upper right side of drying chamber 3.Combustion chamber 1 is made up of combustion bin and hot blast storehouse two parts, has several pores to communicate between two storehouses.Combustion bin has several nozzle burning gases fuel, regulates air inflow by air register, and temperature is controlled height by nozzle tolerance governor motion and air door regulating mechanism in the combustion bin.
Air-introduced machine 21 hot blast storehouse is drawn hot blast from the combustion chamber, flows into bellows 4 by pipeline.Bellows 4 are positioned at the top of drying chamber 3, are slightly less than drying chamber 3.Many equally distributed nozzles 5 are housed below the bellows 4, thermal current is sprayed at a high speed by the oven dry thing.Prove that through long-term practice the nozzle air velocity is controlled at best results between 25 meter per seconds～35 meter per seconds.
The locular wall of drying chamber 3 is made by filler insulation material in the middle of the two-layered steel plates.So both improve bearing capacity, quickened construction speed again.Not shove charge of the import and export door of drying chamber 3 adopts the mode of opening wide, and so both makes things convenient for continuous productive process, simplifies the structure again.The air door 7 that distributes many adjustable openings on the two side of drying chamber along the longitudinal communicates with the return air pipeline, sends used beat wind back to combustion chamber, has made full use of heat energy.Load by the chassis 8 of oven dry thing and pack in the drying chamber, guide rail or conveyer belt are arranged below.Experiment showed, that drying effect was best when the oven dry indoor temperature was controlled at 180 ℃～220 ℃.
The security exhaust system is made up of the exhaust hood 9 of importing and exporting the fire door top and pipeline, exhaust blower.Its effect first prevents that hot blast is to external leakage in the stove; Its two confessions point stokehold ensures safety in production harmful inflammable gas emptying in the stove.
Cast steel subsidiary factory of Lanzhou petro-Chemical Machine Factory has designed three low temperature drying stoves according to technique scheme, is used in respectively on large, medium and small three moulding streamlines, has reached designing requirement fully through the long-term proof of using.Temperature is controlled between 180 ℃～220 ℃ preferably in the stove, and temperature difference is greater than 5 ℃ everywhere in the stove, so the casting mold die cavity toasts evenly everywhere, and speed is fast, and drying time is 20～40 minutes at every turn.If stove is located on the streamline, furnace superintendent is established five stations, just can dry a casting mold in then average 4～8 minutes.So this drying oven can satisfy the requirement of oven dry mo(U)ld face and resin-bonded sand cast form die cavity coating fully, and is also suitable fully to drying other article surface certainly.
Claims (5)
1, a kind of low temperature drying stove that is used for article surface oven dry, the particularly oven dry of casting mold mold cavity surface and the oven dry of resin-bonded sand cast form mold cavity surface coating, comprising:
The a combustion chamber
The b drying chamber
The c hot air circulating system
The chassis of d delivery casting mold or article
E security exhaust system
It is characterized in that:
Hot wind supply system in the f hot air circulating system draws hot blast by air-introduced machine from the combustion chamber, enters bellows by the road, and bellows are positioned at the top of drying chamber, are slightly less than drying chamber, and many equally distributed nozzles are arranged at the bellows bottom,
Air return system in the g hot air circulating system, by the air door of a plurality of adjustable openings that longitudinally distribute under the drying chamber two side, the return air pipeline is formed, and sends used beat wind back to combustion chamber.
2,, it is characterized in that the temperature of drying chamber is controlled between 180 ℃～220 ℃ according to claim 1 described low temperature drying stove.
3,, it is characterized in that the nozzle air velocity under the bellows is controlled between 25 meter per seconds～35 meter per seconds according to claim 1 or 2 described low temperature drying stoves.
4,, it is characterized in that the locular wall of drying chamber constitutes by loading insulation material in the middle of the two-layered steel plates according to claim 3 described low temperature drying bakings.
5,, it is characterized in that the import of drying chamber and export opening wide not shove charge door according to claim 3 described low temperature drying stoves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88201767 CN2040242U (en) | 1988-03-13 | 1988-03-13 | Low-temp. drying stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88201767 CN2040242U (en) | 1988-03-13 | 1988-03-13 | Low-temp. drying stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2040242U true CN2040242U (en) | 1989-06-28 |
Family
ID=4836912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88201767 Withdrawn CN2040242U (en) | 1988-03-13 | 1988-03-13 | Low-temp. drying stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2040242U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497111B (en) * | 2009-03-09 | 2010-10-13 | 江苏一汽铸造股份有限公司 | Resin-bonded sand cast form hot air technique |
| CN103438685A (en) * | 2013-08-19 | 2013-12-11 | 陕西宝深机械(集团)有限公司 | Novel drying kiln air current circulation system |
| CN103832061A (en) * | 2012-11-20 | 2014-06-04 | 吴江市利群纺织有限公司 | Drying room of circular screen printer |
| CN109739281A (en) * | 2019-01-16 | 2019-05-10 | 广西玉柴机器股份有限公司 | A kind of sand core skin drying furnace automatic temperature-control control method and system |
| CN109985783A (en) * | 2019-04-09 | 2019-07-09 | 安徽应流集团霍山铸造有限公司 | Resin self-setting sand sand mold mold cavity surface drying oven |
| CN114472109A (en) * | 2022-02-15 | 2022-05-13 | 黄山诺帆科技装备制造有限公司 | Quick drying furnace |
-
1988
- 1988-03-13 CN CN 88201767 patent/CN2040242U/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101497111B (en) * | 2009-03-09 | 2010-10-13 | 江苏一汽铸造股份有限公司 | Resin-bonded sand cast form hot air technique |
| CN103832061A (en) * | 2012-11-20 | 2014-06-04 | 吴江市利群纺织有限公司 | Drying room of circular screen printer |
| CN103438685A (en) * | 2013-08-19 | 2013-12-11 | 陕西宝深机械(集团)有限公司 | Novel drying kiln air current circulation system |
| CN103438685B (en) * | 2013-08-19 | 2015-10-28 | 陕西宝深机械(集团)有限公司 | Novel drying kiln airflow circulating system |
| CN109739281A (en) * | 2019-01-16 | 2019-05-10 | 广西玉柴机器股份有限公司 | A kind of sand core skin drying furnace automatic temperature-control control method and system |
| CN109985783A (en) * | 2019-04-09 | 2019-07-09 | 安徽应流集团霍山铸造有限公司 | Resin self-setting sand sand mold mold cavity surface drying oven |
| CN114472109A (en) * | 2022-02-15 | 2022-05-13 | 黄山诺帆科技装备制造有限公司 | Quick drying furnace |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |