CN205856510U - A kind of purity nitrogen non-oxidation recrystallization vacuum annealing furnace for hot rolled plate - Google Patents
A kind of purity nitrogen non-oxidation recrystallization vacuum annealing furnace for hot rolled plate Download PDFInfo
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- CN205856510U CN205856510U CN201620391225.9U CN201620391225U CN205856510U CN 205856510 U CN205856510 U CN 205856510U CN 201620391225 U CN201620391225 U CN 201620391225U CN 205856510 U CN205856510 U CN 205856510U
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- annealing furnace
- inner cover
- ripple inner
- hot
- housing
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Abstract
This utility model relates to a kind of purity nitrogen non-oxidation recrystallization vacuum annealing furnace for hot rolled plate, purity nitrogen non-oxidation recrystallization vacuum annealing furnace is made up of table, Hot-flow fan, burner, heating mantles housing, vacuum extractor, dedusting collection device, vacuum equipment is connected to described housing bottom, in order to, before described annealing furnace blow-on, described housing is carried out evacuation.Processed by evacuation so that the dividing potential drop of the air within described annealing furnace is greatly lowered, thus eliminate the oxidizing atmosphere within annealing furnace.Meanwhile, removing the air within annealing furnace compared in prior art by logical nitrogen, the evacuation used time is short, efficiency is high, and cost is relatively low.Be provided with Hot-flow fan in the bottom of table, substantial amounts of purity nitrogen blows in furnace chamber through Hot-flow fan equably as protective gas, forms forced circulation air-flow and the hot-finished materials such as the coils of hot-rolled steel in furnace chamber, steel band carry out eliminating the annealing of stress.
Description
Technical field
This utility model relates to annealing furnace technical field, is specifically related to a kind of purity nitrogen non-oxidation recrystallization for hot rolled plate
Vacuum annealing furnace.
Background technology
Along with the competition of Cold-rolled Sheet Project, all kinds of Cold-rolled Sheet Projects that each steel mill several years ago starts produce
Entering low margin age, market produces different performance requirements to various thin plates, band, tubing simultaneously.
Patent documentation CN2569068Y discloses a kind of perhydro strong convection vacuum drying oven, including heating mantles housing, table, hot-fluid
Blower fan and burner.By burner, fuel gas is passed through furnace chamber internal and burn, steel are made annealing treatment.By hot-fluid wind
Pure hydrogen is contacted by machine with steel, decreases the oxidation of process component, produces bigger economic benefit.But, this perhydro is strong
Convection current bell-type stove has following deficiency: when using hydrogen to heat steel as combustion gas, combustion gas is not easy storage, hydrogen simultaneously
Gas is relatively costly, is susceptible to the danger such as blast in transportation.
To this end, as improving, provide a kind of bell furnace in prior art, described bell furnace uses N2As protective gas,
Before bell furnace blow-on, the air of heating mantles enclosure interior is carried out nitrogen purging, prevent the oxygen in air from steel being entered
Row oxidation.But, during using nitrogen to purge, needing to expend substantial amounts of gas, consumption accounts for whole heat treated
/ 3rd of journey, cost is the highest.
Utility model content
Therefore, the technical problems to be solved in the utility model is to overcome bell furnace in prior art to use nitrogen to blow
During sweeping, needing to expend substantial amounts of gas, consumption accounts for 1/3rd of whole heat treatment process, and cost is the highest not
Foot；
A kind of purity nitrogen non-oxidation recrystallization vacuum annealing furnace for hot rolled plate, including: housing；Ripple inner cover, coaxially sets
Putting the inner side at described housing, described ripple inner cover is internal places strand, is provided with stove between described housing and described ripple inner cover
Seal between chamber, and described ripple inner cover and described housing and arrange；Heater, is arranged in described housing sidewall, in order to right
Described ripple inner cover heats；Hot-flow fan, described Hot-flow fan is arranged on described ripple inner cover bottom, in order to described ripple
Stricture of vagina inner cover is passed through nitrogen；Vacuum extractor, described vacuum extractor is connected to described housing bottom, in order at described annealing furnace
Before blow-on, described housing is carried out evacuation.
Described vacuum annealing furnace also includes: dust collecting installation, is connected to the top of described ripple inner cover, in order to by described
Outside dust sucking-off in ripple inner cover extremely described ripple inner cover；And, purify oil water separator, be connected to described ripple inner cover
Bottom, in order to the waste oil in described ripple inner cover and waste water are separated to extraneous.
Described heater is burner, and it is extraneous that one end of described burner is connected to described housing, the other end of described burner
Connect combustion gas storage device.
Described annealing furnace also includes nitrogen purger, is arranged on the side of described Hot-flow fan, in order to ensure entrance institute
State the drying property of gas in Hot-flow fan.
Described dust collecting installation includes: dust pipeline, and described dust pipeline one end connects the top of described ripple inner cover,
The other end connects dust storage device；And, blower fan, it is arranged on described dust pipeline, in order to by the dust in ripple inner cover
Suck described dust pipe interior.
The concordant setting in bottom of described housing bottom and described ripple inner cover.
Described vacuum annealing furnace also includes the table being arranged on described vacuum annealing furnace bottom, in order to support described housing with
Between described ripple inner cover, and described table and described housing bottom, between described table and the bottom of described ripple inner cover all
Seal and arrange.
Described housing is equipped with flame-proof thermal insulation material on the medial wall of described ripple inner cover.
Technical solutions of the utility model, have the advantage that
1. this utility model provides a kind of vacuum annealing furnace, uses vacuum extractor, and described vacuum extractor is connected to institute
State housing bottom, in order to, before described annealing furnace blow-on, described housing is carried out evacuation.Processed by evacuation so that institute
The dividing potential drop stating the air within annealing furnace is greatly lowered, thus eliminates the oxidizing atmosphere within annealing furnace.Meanwhile, compared to
Removing the air within annealing furnace by logical nitrogen in prior art, the evacuation used time is short, efficiency is high, and cost is relatively low.
2. this utility model provides a kind of vacuum annealing furnace, including: dust collecting installation and, purify oil water separator,
It is connected to the bottom of described ripple inner cover.
Described dust collecting installation can prevent dust from again dropping by outside the dust sucking-off in ripple inner cover to annealing furnace
Drop down onto steel surface, steel are caused secondary pollution.Meanwhile, oil water separator is purified in order to by the waste oil in described ripple inner cover
And waste water separates to extraneous, prevent vacuum annealing furnace interior described in the waste water that produces in heat treatment process and waste oil pollution.
3. this utility model provides a kind of vacuum annealing furnace, and described annealing furnace also includes nitrogen purger, is arranged on institute
State the side of Hot-flow fan, in order to ensure to enter the drying property of gas in described Hot-flow fan, prevent from entering within annealing furnace
In nitrogen, excess moisture is decomposed, and generates oxygen, the steel that will carry out heat treatment are carried out reoxidation.
4. this utility model provides a kind of vacuum annealing furnace, is provided with Hot-flow fan, substantial amounts of purity nitrogen in the bottom of table
Blow to equably in furnace chamber through Hot-flow fan as protective gas, formed forced circulation air-flow, to the coils of hot-rolled steel in furnace chamber,
The hot-finished materials such as steel band carry out eliminating the annealing of stress.
4. this utility model provides a kind of vacuum annealing furnace, and described housing is equipped with on the medial wall of described ripple inner cover
Flame-proof thermal insulation material.In order to prevent heat to be lost to outside annealing furnace, play the effect of adiabatic heat-insulation.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model detailed description of the invention or technical scheme of the prior art, below by right
In detailed description of the invention or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing be embodiments more of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of the described vacuum annealing furnace that Fig. 1 provides for this utility model；
The structural representation of the Fig. 2 described purification oil water separator for providing in Fig. 1；
The structural representation of the Fig. 3 described vacuum extractor for providing in Fig. 1.
Description of reference numerals:
1-housing；2-ripple inner cover；3-furnace chamber；4-dust collecting installation；41-dust pipeline；42-blower fan；5-table；6-
Hot-flow fan；7-burner；8-flame-proof thermal insulation material；9-vacuum extractor；10-purifies oil water separator；12-nitrogen purging sets
Standby；
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, it is clear that described
Embodiment is a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, this
The every other embodiment that field those of ordinary skill is obtained under not making creative work premise, broadly falls into this practicality
Novel protected scope.
In description of the present utility model, " " center ", " on ", D score, "left", "right", " perpendicular it should be noted that term
Directly ", " level ", " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, be only
Must have specific for the ease of describing this utility model and simplification description rather than instruction or the device of hint indication or element
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace
Dress ", should be interpreted broadly " being connected ", " connection ", for example, it may be fix connection, it is also possible to be to removably connect, or integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Language concrete meaning in this utility model.
As long as additionally, technical characteristic involved in this utility model difference embodiment disclosed below is each other
The conflict of not constituting just can be combined with each other.
Embodiment 1
The present embodiment provides a kind of purity nitrogen non-oxidation recrystallization vacuum annealing furnace for hot rolled plate, as it is shown in figure 1, bag
Include: housing 1；Ripple inner cover 2, is co-axially located at the inner side of described housing 1, and described ripple inner cover 2 is internal places strand, described shell
It is provided with between furnace chamber 3, and described ripple inner cover 2 and described housing 1 sealing between body 1 and described ripple inner cover 2 to arrange；Add hot charging
Put, be arranged on described housing 1 sidewall, in order to described ripple inner cover 2 is heated；Hot-flow fan 6, described Hot-flow fan 6
It is arranged on described ripple inner cover 2 bottom, in order to be passed through nitrogen in described ripple inner cover 2；Vacuum extractor 9, described evacuation
Device 9 is connected to described housing 1 bottom, in order to before described annealing furnace blow-on, described housing 1 is carried out evacuation.
Processed by evacuation, as shown in Figure 3 so that the dividing potential drop of the air within described annealing furnace is greatly lowered, from
And eliminate the oxidizing atmosphere within annealing furnace.Meanwhile, removed inside annealing furnace by logical nitrogen compared in prior art
Air, the evacuation used time is short, efficiency is high, and cost is relatively low.
Specifically, before blow-on, start described vacuum extractor 9 and described annealing furnace is reduced pressure, negative pressure is evacuated to nearly
One kilogram, then start Hot-flow fan 6, described ripple inner cover 2 is carried out nitrogen charging operation, pressurize 10 minutes after nitrogen charging.
Pass through aforesaid operations, it can be ensured that no longer containing oxidizing gas in described annealing furnace before steel are carried out heat treatment
Atmosphere, so that it is guaranteed that steel will not occur reoxidation in heat treatment process.
Meanwhile, the vacuum annealing furnace using the present embodiment to provide can be effectively prevented steel surface decarburization and steel surface
The phenomenons such as dezincification, it has been abandoned traditional cold-rolling treatment technique, has shortened heat treatment cycle, stopped environmental pollution, reduce
Production cost, decreases production safety risk.
As preferred embodiment, described vacuum annealing furnace also includes: dust collecting installation 4, is connected to described ripple
The top of inner cover 2, in order to by outside the dust sucking-off in described ripple inner cover 2 to described ripple inner cover 2；And, purify profit
Separator 10, is connected to the bottom of described ripple inner cover 2, in order to separate the waste oil in described ripple inner cover 2 and waste water to outward
Boundary.
Described dust collecting installation 4 can prevent dust again by outside the dust sucking-off in ripple inner cover 2 to annealing furnace
It drop to steel surface, steel are caused secondary pollution.Meanwhile, as in figure 2 it is shown, described purification oil water separator 10 is in order to by institute
State the waste oil in ripple inner cover 2 and waste water separates to extraneous, prevent described in waste water and the waste oil pollution of generation in heat treatment process
Vacuum annealing furnace interior.
As preferred embodiment, described heater is burner 7, and one end of described burner 7 is connected to described housing 1
The external world, the other end of described burner 7 connects combustion gas storage device.
Specifically, described burner 7 having igniter, it is possible to light combustion gas, igniter uses Gao Rong simultaneously
Point material is constituted, it is possible to high temperature resistant.Combustion gas used can be the gas such as blast furnace gas, natural gas.
As preferred embodiment, described annealing furnace also includes nitrogen purger 12, is arranged on described Hot-flow fan 6
Side, in order to ensure to enter the drying property of gas in described Hot-flow fan 6.
Nitrogen is dehumidified, is possible to prevent to enter excess moisture in nitrogen within annealing furnace and decomposes generation oxygen
The steel that will carry out heat treatment are carried out reoxidation by gas.
As preferred embodiment, described dust collecting installation 4 includes: dust pipeline 41, described dust pipeline 41 1
End connects the top of described ripple inner cover 2, and the other end connects dust storage device；And, blower fan 42, it is arranged on described dust pipe
On road 41, internal in order to the dust in ripple inner cover 2 is sucked described dust pipeline 41.
Under the effect of blower fan 42, the dust in ripple inner cover 2 is directly entered in dust pipeline 41, by dust pipeline 41
It is discharged in the middle of the annealing furnace external world.
Meanwhile, in annealing furnace, it is being filled with nitrogen protection or when being filled with gas heating, the waste gas of generation or the most fully fire
The gas burnt also can be discharged in the external world from dust pipeline 41.
As preferred embodiment, the concordant setting in bottom of described housing 1 bottom and described ripple inner cover 2.Described very
Empty annealing furnace also includes the table 5 being arranged on described vacuum annealing furnace bottom, in order to support described housing 1 and described ripple inner cover
All seal between 2, and described table 5 and described housing 1 bottom, between described table 5 and the bottom of described ripple inner cover 2 and set
Put.
Specifically, between described table 5 and described housing 1 bottom, the bottom of described table 5 and described ripple inner cover 2 it
Between use high temperature resistant silica gel Sealing Technology, it is ensured that the sealing property that furnace interior is good.
As preferred embodiment, described housing 1 is equipped with fire resistant heat preserving material on the medial wall of described ripple inner cover 2
Material 8.
Specifically, described flame-proof thermal insulation material 8 uses carborundum or aluminosilicate material etc. to have dystectic material composition.
Obviously, above-described embodiment is only for clearly demonstrating example, and not restriction to embodiment.Right
For those of ordinary skill in the field, can also make on the basis of the above description other multi-form change or
Variation.Here without also cannot all of embodiment be given exhaustive.And the obvious change thus extended out or
Change among the protection domain still in this utility model creation.
Claims (8)
1. the purity nitrogen non-oxidation recrystallization vacuum annealing furnace for hot rolled plate, it is characterised in that including:
Housing (1)；
Ripple inner cover (2), is co-axially located at the inner side of described housing (1), the internal strand of placing of described ripple inner cover (2), described
It is provided with between furnace chamber (3), and described ripple inner cover (2) and described housing (1) close between housing (1) and described ripple inner cover (2)
Envelope is arranged；
Heater, is arranged on described housing (1) sidewall, in order to heat described ripple inner cover (2)；
Hot-flow fan (6), described Hot-flow fan (6) is arranged on described ripple inner cover (2) bottom, in order to described ripple inner cover
(2) nitrogen it is passed through in；
Vacuum extractor (9), described vacuum extractor (9) is connected to described housing (1) bottom, in order in described annealing furnace blow-on
Before, described housing (1) is carried out evacuation.
Vacuum annealing furnace the most according to claim 1, it is characterised in that described annealing furnace also includes:
Dust collecting installation (4), is connected to the top of described ripple inner cover (2), in order to by the dust in described ripple inner cover (2)
Sucking-off is to described ripple inner cover (2) outside；And,
Purify oil water separator (10), be connected to the bottom of described ripple inner cover (2), in order to by described ripple inner cover (2)
Waste oil and waste water separate to extraneous.
Vacuum annealing furnace the most according to claim 1, it is characterised in that described heater is burner (7), described burner
(7) it is extraneous that one end is connected to described housing, and the other end of described burner (7) connects combustion gas storage device.
Vacuum annealing furnace the most according to claim 1, it is characterised in that described annealing furnace also includes nitrogen purger
(12), it is arranged on the side of described Hot-flow fan (6), in order to ensure to enter the drying property of gas in described Hot-flow fan (6).
Vacuum annealing furnace the most according to claim 2, it is characterised in that described dust collecting installation (4) including:
Dust pipeline (41), described dust pipeline (41) one end connects the top of described ripple inner cover (2), and the other end connects dust
Storage device；And,
Blower fan (42), is arranged on described dust pipeline (41), in order to the dust in ripple inner cover (2) is sucked described dust pipe
Road (41) is internal.
Vacuum annealing furnace the most according to claim 1, it is characterised in that described housing (1) bottom and described ripple inner cover
(2) the concordant setting in bottom.
Vacuum annealing furnace the most according to claim 1, it is characterised in that described vacuum annealing furnace also includes being arranged on described
The table (5) of vacuum annealing furnace bottom, in order to support described housing (1) and described ripple inner cover (2), and described table (5) with
Between described housing (1) bottom, between described table (5) and the bottom of described ripple inner cover (2), all seal setting.
Vacuum annealing furnace the most according to claim 1, it is characterised in that described housing (1) and described ripple inner cover (2)
Flame-proof thermal insulation material (8) it is equipped with on medial wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620391225.9U CN205856510U (en) | 2016-04-29 | 2016-04-29 | A kind of purity nitrogen non-oxidation recrystallization vacuum annealing furnace for hot rolled plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620391225.9U CN205856510U (en) | 2016-04-29 | 2016-04-29 | A kind of purity nitrogen non-oxidation recrystallization vacuum annealing furnace for hot rolled plate |
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| Publication Number | Publication Date |
|---|---|
| CN205856510U true CN205856510U (en) | 2017-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620391225.9U Expired - Fee Related CN205856510U (en) | 2016-04-29 | 2016-04-29 | A kind of purity nitrogen non-oxidation recrystallization vacuum annealing furnace for hot rolled plate |
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| CN (1) | CN205856510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342561A (en) * | 2018-04-20 | 2018-07-31 | 山翁工业炉(嘉善)有限公司 | A kind of nodularization bell furnace without decarbonizing process using full nitrogen |
-
2016
- 2016-04-29 CN CN201620391225.9U patent/CN205856510U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108342561A (en) * | 2018-04-20 | 2018-07-31 | 山翁工业炉(嘉善)有限公司 | A kind of nodularization bell furnace without decarbonizing process using full nitrogen |
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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: 20170104 Termination date: 20200429 |