CN201512565U - Jet flow slow cooling device of electric heating cover type furnace - Google Patents
Jet flow slow cooling device of electric heating cover type furnace Download PDFInfo
- Publication number
- CN201512565U CN201512565U CN2009202275516U CN200920227551U CN201512565U CN 201512565 U CN201512565 U CN 201512565U CN 2009202275516 U CN2009202275516 U CN 2009202275516U CN 200920227551 U CN200920227551 U CN 200920227551U CN 201512565 U CN201512565 U CN 201512565U
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- slow cooling
- heating
- heating cover
- inner cover
- air flow
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Abstract
The utility model relates to a jet flow slow cooling device of an electric heating cover type furnace, which comprises an inner cover (9), wherein a heating cover (8) is arranged outside the inner cover (9), a slow cooling blower (1) is positioned on the heating cover (8), one end of a wind pipe (2) is connected with the slow cooling blower (1), the other end of the wind pipe (2) is communicated into an air flow distribution box body (3), an air inlet valve (4) is arranged in the air flow distribution box body (3), the air flow distribution box body (3) is connected with a jet flow pipe (5), a heating space (6) is formed between the heating cover (8) and the inner cover (9), and an exhaust control valve (7) is arranged at the upper end of the heating cover (8). The utility model utilizes the air jet flow technology, adds the annealing slow cooling process, slows down the environmental temperature difference change during the process conversion, solves the problem of defect occurrence of easy adhesion of the existing process equipment by the surface of annealing steel coils, can avoid the adhesion defect of the annealing steel coils, can improve the working procedure yield rate of the products, and can improve the operation efficiency.
Description
Technical field
The utility model relates to a kind of annealing material after heating finishes, the device of controlled slow cooling.More particularly it is a kind of electric heating bell-type furnace jet annealing device.
Background technology
Bell type annealing furnace is in the cold-reduced sheet manufacturing enterprise, as eliminating the rolling back cold hardening that produces of coil of strip, finishing the rolling processing apparatus of broken crystal grain recovery and recrystallization afterwards of coil of strip.
The bell type annealing furnace heating mantles generally is divided into combustion gas heating (as coal gas, Sweet natural gas etc.) and electrically heated (as resistance wire, resistive band) two kinds, and it is that heat energy by combustion gas and combustion air mixed firing heats to coil of strip that combustion gas is heated; Electrically heated is to convert heat energy to by electric energy to heat to coil of strip.Coil of strip is finished heating in bell furnace after, the general technology setting is to hang away heating mantles, buckles cooling cowl, and coil of strip is cooled to come out of the stove after the not oxidized temperature (volume core temperature is below 160 ℃).Change in the process of cooling cowl hanging heating mantles, because it is excessive to be annealed the environment temperature drop gradient of coil of strip, make and be annealed the outside sharply cooling of coil of strip, the coil of strip focus that has enlarged and the temperature difference between cold spot, make the radially cold contraction of coil of strip interlayer seriously uneven, increased the coil of strip interlayer pressure, formed the fusion of coil of strip localized hyperthermia, caused to be annealed coil of strip and to produce facial bonding defect.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned existing disadvantages of background technology part, and a kind of electric heating bell-type furnace jet annealing device is provided.It utilizes the airstream technology, increases the annealing retarded cooling process, and circumstance of temperature difference changes when slowing down the technology switching, solves existing processing unit, is easy to generate and is annealed coil of strip surface adhesion defect problem.
The purpose of this utility model reaches by following measure: electric heating bell-type furnace jet annealing device, it comprises inner cover, it is characterized in that heating mantles is arranged outside inner cover, the slow cooling blower fan is positioned on the heating mantles, and an end of airduct is connected with the slow cooling blower fan, in the other end of airduct and the feeding distribution of air flow casing, in the distribution of air flow casing air intake valve is arranged, the distribution of air flow casing is connected with jet pipe, is heating space between heating mantles and inner cover, at the top of heating mantles gas exhausting valve is installed.
In technique scheme, described slow cooling blower fan is controlled by PLC.
The utility model electric heating bell-type furnace jet annealing device has the following advantages: the temperature difference when 1. having reduced to hang heating mantles between coil of strip focus and cold spot can prolong work-ing life of inner cover.2. by the enforcement of retarded cooling process, can reduce or remit the bonding defect of annealing coil, improve the operation lumber recovery of product, improve operating efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model electric heating bell-type furnace jet annealing device.
Fig. 2 is the control principle figure of the utility model electric heating bell-type furnace jet annealing device.
1. slow cooling blower fans among the figure, 2. airduct, 3. distribution of air flow casing, 4. air intake valve, 5. jet pipe, 6. heating space, 7. gas exhausting valve, 8. heating mantles, 9. inner cover.
Embodiment
Describe performance of the present utility model in detail below in conjunction with accompanying drawing, but they do not constitute to qualification of the present utility model, only do for example.Simultaneously by illustrating that advantage of the present utility model will become clear more and understanding easily.
Consult accompanying drawing as can be known: the utility model electric heating bell-type furnace jet annealing device, it comprises inner cover 9, heating mantles 8 is arranged outside inner cover 9, slow cooling blower fan 1 is positioned on the heating mantles 8, one end of airduct 2 is connected with slow cooling blower fan 1, in the other end of airduct 2 and the feeding distribution of air flow casing 3, air intake valve 4 is arranged in the distribution of air flow casing 3, distribution of air flow casing 3 is connected with jet pipe 5, between heating mantles 8 and inner cover 9, be heating space 6, in the upper end of heating mantles 8 gas exhausting valve 7 is arranged, slow cooling blower fan 1 is by PLC control (as shown in Figure 1).
During work: obtain the instruction of heating end as PLC after, slow cooling blower fan 1 on the heating mantles can start automatically by the PLC program, the slow cooling air enters distribution of air flow casing 3 through airduct 2, corresponding with it corresponding the opening of air intake valve 4 meetings, the slow cooling air is again through dividing equally jet pipe 5, in heating space 6,, be ejected in the burner hearth high-temperature gas oriented and orderedly and mix by the track of pre-control.After the cooling air heat absorption, by 7 dischargings of heating mantles top gas exhausting valve, originally the high-temp waste gas that heat in the source that was heated in the heating mantles, by to the slow cooling air heat release that enters exchange, its temperature is slowly reduced, in the time of the cooling of heating space, the also corresponding slow decline of inner cover 9 temperature, in like manner, the annealing coil of being heated indirectly also can slowly be lowered the temperature, thereby reaches the effect of annealing coil slow cooling.System limits the caloric receptivity size by the flow of control slow cooling air, obtain designing the slow cooling speed of expectation, promptly when accelerating the heating mantles cooling relatively, make the annealing coil in the stove obtain rate of cooling slowly, its big I is determined by the kind and the specification of annealed material.The improved result of this processing unit can avoid being annealed coil of strip to greatest extent and produce facial bonding (as shown in Figure 1 and Figure 2).
Claims (2)
1. electric heating bell-type furnace jet annealing device, it comprises inner cover (9), it is characterized in that heating mantles (8) is arranged outside inner cover (9), slow cooling blower fan (1) is positioned on the heating mantles (8), one end of airduct (2) is connected with slow cooling blower fan (1), in the other end of airduct (2) and the feeding distribution of air flow casing (3), air intake valve (4) is arranged in the distribution of air flow casing (3), distribution of air flow casing (3) is connected with jet pipe (5), between heating mantles (8) and inner cover (9), be heating space (6), gas exhausting valve (7) arranged in the upper end of heating mantles (8).
2. electric heating bell-type furnace jet annealing device according to claim 1 is characterized in that described slow cooling blower fan (1) controlled by PLC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202275516U CN201512565U (en) | 2009-08-21 | 2009-08-21 | Jet flow slow cooling device of electric heating cover type furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202275516U CN201512565U (en) | 2009-08-21 | 2009-08-21 | Jet flow slow cooling device of electric heating cover type furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201512565U true CN201512565U (en) | 2010-06-23 |
Family
ID=42483973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202275516U Expired - Fee Related CN201512565U (en) | 2009-08-21 | 2009-08-21 | Jet flow slow cooling device of electric heating cover type furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201512565U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256809A (en) * | 2013-06-08 | 2013-08-21 | 常熟市双月机械有限公司 | Slow cooling device of push rod sintering furnace used for powder metallurgy |
| CN104250678A (en) * | 2013-06-25 | 2014-12-31 | 宝山钢铁股份有限公司 | Slow-cooling section device of horizontal annealing furnace radiation cooling system and control method thereof |
| CN106011452A (en) * | 2016-07-09 | 2016-10-12 | 新万鑫（福建）精密薄板有限公司 | In-furnace air pressure control device and method of oriented silicon steel high-temperature bell type furnace |
-
2009
- 2009-08-21 CN CN2009202275516U patent/CN201512565U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103256809A (en) * | 2013-06-08 | 2013-08-21 | 常熟市双月机械有限公司 | Slow cooling device of push rod sintering furnace used for powder metallurgy |
| CN104250678A (en) * | 2013-06-25 | 2014-12-31 | 宝山钢铁股份有限公司 | Slow-cooling section device of horizontal annealing furnace radiation cooling system and control method thereof |
| CN104250678B (en) * | 2013-06-25 | 2016-12-28 | 宝山钢铁股份有限公司 | Horizental annealer radiation cooling system slow cooling section device and control method |
| CN106011452A (en) * | 2016-07-09 | 2016-10-12 | 新万鑫（福建）精密薄板有限公司 | In-furnace air pressure control device and method of oriented silicon steel high-temperature bell type furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100623 Termination date: 20170821 |