CN210974823U - Cover type annealing furnace with adjustable cooling speed - Google Patents
Cover type annealing furnace with adjustable cooling speed Download PDFInfo
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- CN210974823U CN210974823U CN201921006142.3U CN201921006142U CN210974823U CN 210974823 U CN210974823 U CN 210974823U CN 201921006142 U CN201921006142 U CN 201921006142U CN 210974823 U CN210974823 U CN 210974823U
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- outer heating
- container cover
- type annealing
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Abstract
The utility model discloses a cooling rate adjustable bell-type annealing stove, include: the heating device comprises an inner container cover, an outer heating cover and a base, wherein the inner container cover and the outer heating cover are arranged on the base, and a space between the outer heating cover and the inner container cover is a hearth; set up the material tray in the middle of the base, and the pipeline of taking a breath, the inner bag cover is on the material tray, outer heating mantle includes outer cage, middle lining and fixes the automatically controlled heating element on the middle lining, automatically controlled heating element encircles the inner bag cover and lays, outer heating mantle bottom sets up the air intake, the air intake is with the tangent line mode air inlet, the air intake passes through the external fan device of metal pipeline, outer heating mantle top sets up the air outlet that has the top cap, and through the mode, the utility model discloses take away the heat through cold air spiral during can realizing the cooling, whole process is even high-efficient, is favorable to accurate control furnace temperature falling speed.
Description
Technical Field
The utility model relates to a heat treatment equipment field especially relates to a cooling rate adjustable bell-type annealing stove.
Background
The bell-type annealing furnace is one kind of heat treatment furnace, is mainly used for annealing and tempering of strip steel and wire rod coils, and when the bell-type furnace works, a workpiece is placed in an inner cover filled with inert shielding gas for uniform heating and cooling, so that the annealed workpiece can obtain uniform hardness and a bright surface, but the temperature control of the conventional bell-type furnace in a cooling stage is not fine enough, the cooling speed is slow, and the efficiency is low.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a cover type annealing furnace which can adjust the annealing speed.
In order to solve the technical problem, the utility model discloses a technical scheme be: there is provided a hood-type annealing furnace with an adjustable cooling rate, comprising: the heating device comprises an inner container cover, an outer heating cover and a base, wherein the inner container cover and the outer heating cover are arranged on the base, and a space between the outer heating cover and the inner container cover is a hearth; a material tray is arranged in the middle of the base, the diameter of the inner container cover is 1.1-1.2 times of that of the material tray, and an inner container cover ventilation pipeline is arranged below the material tray; the outer heating mantle includes outer cage, middle lining and fixes the automatically controlled heating element on the lining in the middle of, automatically controlled heating element encircles the inner bag cover and lays, the internal diameter of outer heating mantle is 1.2~1.4 times of inner bag cover external diameter, outer heating mantle bottom sets up the air intake, the air intake is with the tangent line mode air inlet, the air intake passes through the external fan device of intake stack, set up pipeline enclosed construction on the intake stack, outer heating mantle top sets up the air outlet, install the top cap that can control the air outlet size on the air outlet.
In a preferred embodiment of the present invention, the height of the air inlet does not exceed the height of the material tray.
In a preferred embodiment of the present invention, the surface of the inner container cover is provided with cooling fins distributed radially along the inner container cover.
In a preferred embodiment of the present invention, the thickness of the heat dissipation plates is not more than 2mm, and the distance between the heat dissipation plates is not less than 2 cm.
In a preferred embodiment of the present invention, the heat sink is an aluminum alloy heat sink.
In a preferred embodiment of the present invention, the maximum air intake per minute of the external fan on the air intake duct is not less than 3 times of the total volume of the furnace chamber.
In a preferred embodiment of the present invention, the intermediate lining layer is made of asbestos fiber material.
The utility model has the advantages that: the utility model discloses a set up tangent line air intake in the furnace of bell-type furnace, make bell-type annealing stove can take away the heat on inner bag cover surface with a mode that rises along the rotatory of furnace mantle inner wall at cooling in-process cold wind, whole heat absorption process is even high-efficient, has more clear linear relation between cooling rate and the air inlet speed, is favorable to accurate control stove internal temperature falling speed on the one hand, and on the other hand is favorable to the homogeneity of cooling in the inner bag cover.
Drawings
Fig. 1 is a schematic perspective view of a preferred embodiment of the present invention;
the parts in the drawings are numbered as follows:
1. the furnace comprises a base, an inner container cover 2, a hearth 3, an outer heating cover 4, an intermediate lining 5, an electric control heating element 6, a material tray 7, a radiating fin 8, an air inlet 9, a top cover 10, an air exhaust pipeline 11 and an air inlet pipeline 12.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to the drawings, an embodiment of the present invention includes:
a hood-type annealing furnace with an adjustable cooling rate, comprising: the heating furnace comprises an inner container cover 2, an outer heating cover and a base 1, wherein the inner container cover 2 and the outer heating cover are arranged on the base 1, and a space between the outer heating cover and the inner container cover 2 is a furnace chamber 3; a material tray 7 is arranged in the middle of the base 1, the diameter of the inner container cover 2 is 1.1 times of that of the material tray 7, an inner container cover air exchange pipeline is arranged below the material tray 7 and comprises an air exhaust pipeline 11 and an inert gas inlet pipeline 12; the outer heating mantle includes outer cage 4, middle lining 5 and fixes automatically controlled heating element 6 on the middle lining, automatically controlled heating element 6 encircles inner bag cover 2 and lays, the internal diameter of outer heating mantle is 1.2 times of 2 external diameters of inner bag cover, outer heating mantle bottom sets up air intake 9, air intake 9 passes through the external fan device of intake stack, set up pipeline enclosed construction on the intake stack, outer heating mantle top sets up the air outlet, set up top cap 10 on the air outlet, can adjust the size of air outlet as required, regulation temperature falling speed.
The height of the air inlet 9 is not more than that of the material tray 7, the air inlet 9 is prevented from being opened, and the material bottom is cooled unevenly when the material is cooled by air cooling.
The air inlet 9 is used for air inlet in a tangential mode, the air inlet in the tangential mode can promote the air inlet to rotate and rise quickly along the inner wall, and the temperature losing speeds of all parts of the outer wall of the inner container cover 2 are even and balanced.
The surface of inner bag cover 2 sets up fin 8, fin 8 is along inner bag cover 2 radial distribution, the fin can accelerate temperature heat dissipation speed, and radial distribution can influence the route of marcing of air inlet in the furnace as few as possible in addition.
The thickness of the radiating fins 8 is not more than 2mm, the distance between the radiating fins 8 is not less than 2cm, the radiating fins are prevented from being too dense, the radiating effect and the air exchange speed of cold air are prevented from being affected, and the radiating fins 8 are aluminum alloy radiating fins and are good in radiating effect.
The maximum air intake per minute of the external fan on the air inlet pipeline is not less than 3 times of the total volume of the hearth 3, and the cold air inlet speed can be conveniently adjusted according to the requirement of the cooling speed.
The middle lining 5 is made of asbestos fiber materials, and heat dissipation is prevented in the heating process.
In another embodiment of the present invention:
referring to the drawings, another embodiment of the present invention includes:
a hood-type annealing furnace with an adjustable cooling rate, comprising: the heating furnace comprises an inner container cover 2, an outer heating cover and a base 1, wherein the inner container cover 2 and the outer heating cover are arranged on the base 1, and a space between the outer heating cover and the inner container cover 2 is a furnace chamber 3; a material tray 7 is arranged in the middle of the base 1, the diameter of the inner container cover 2 is 1.2 times of that of the material tray 7, an inner container cover air exchange pipeline is arranged below the material tray 7 and comprises an air exhaust pipeline 11 and an inert gas inlet pipeline 12; the outer heating mantle includes outer cage 4, middle lining 5 and fixes automatically controlled heating element 6 on the middle lining, automatically controlled heating element 6 encircles inner bag cover 2 and lays, the internal diameter of outer heating mantle is 1.4 times of 2 external diameters of inner bag cover, outer heating mantle bottom sets up air intake 9, air intake 9 passes through the external fan device of intake stack, set up pipeline enclosed construction on the intake stack, outer heating mantle top sets up the air outlet, set up top cap 10 on the air outlet, can adjust the size of air outlet as required, regulation temperature falling speed.
The height of the air inlet 9 is not more than that of the material tray 7, the air inlet 9 is prevented from being opened, and the material bottom is cooled unevenly when the material is cooled by air cooling.
The air inlet 9 is used for air inlet in a tangential mode, the air inlet in the tangential mode can promote the air inlet to rotate and rise quickly along the inner wall, and the temperature losing speeds of all parts of the outer wall of the inner container cover 2 are even and balanced.
The surface of inner bag cover 2 sets up fin 8, fin 8 is along inner bag cover 2 radial distribution, the fin can accelerate temperature heat dissipation speed, and radial distribution can influence the route of marcing of air inlet in the furnace as few as possible in addition.
The thickness of the radiating fins 8 is not more than 2mm, the distance between the radiating fins 8 is not less than 2cm, the radiating fins are prevented from being too dense, the radiating effect and the air exchange speed of cold air are prevented from being affected, and the radiating fins 8 are aluminum alloy radiating fins and are good in radiating effect.
The maximum air intake per minute of the external fan on the air inlet pipeline is not less than 3 times of the total volume of the hearth 3, and the cold air inlet speed can be conveniently adjusted according to the requirement of the cooling speed.
The middle lining 5 is made of asbestos fiber materials, and heat dissipation is prevented in the heating process.
The working steps of the utility model are as follows:
step 2, air in the liner cover is pumped out through an air pumping pipeline 11, and then inert protective gas is filled into the liner cover 2 through an inert gas inlet pipeline 12;
step 4, after heating is finished, opening a fan according to the annealing requirement, sending cold air into the hearth through an air inlet 9 at the speed required by the process, and discharging hot air through an air outlet at the top of the outer heating cover to quickly take away heat;
and step 5, when the temperature is reduced to the technological requirement, the inert protective gas in the inner container cover is pumped out through an air pumping pipeline, and then the outer heating cover and the inner container cover 2 are opened to be cooled to the normal temperature in an air cooling mode.
The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.
Claims (7)
1. A hood-type annealing furnace with an adjustable cooling rate, characterized in that the hood-type annealing furnace with an adjustable cooling rate comprises: the heating device comprises an inner container cover, an outer heating cover and a base, wherein the inner container cover and the outer heating cover are arranged on the base, and a space between the outer heating cover and the inner container cover is a hearth;
a material tray is arranged in the middle of the base, the diameter of the inner container cover is 1.1-1.2 times of that of the material tray, and an inner container cover ventilation pipeline is arranged below the material tray;
the outer heating mantle includes outer cage, middle lining and fixes the automatically controlled heating element on the lining in the middle of, automatically controlled heating element encircles the inner bag cover and lays, the internal diameter of outer heating mantle is 1.2~1.4 times of inner bag cover external diameter, outer heating mantle bottom sets up the air intake, the air intake is with the tangent line mode air inlet, the air intake passes through the external fan device of intake stack, set up pipeline enclosed construction on the intake stack, outer heating mantle top sets up the air outlet, install the top cap that can control the air outlet size on the air outlet.
2. The hood-type annealing furnace with adjustable cooling rate according to claim 1, wherein the height of the air inlet does not exceed the height of the material tray.
3. The hood-type annealing furnace with the adjustable cooling rate according to claim 1, wherein heat radiating fins are arranged on the surface of the inner container cover, and the heat radiating fins are distributed along the radial direction of the inner container cover.
4. The hood-type annealing furnace with adjustable cooling rate according to claim 3, wherein the thickness of said fins is not more than 2mm, and the distance between said fins is not less than 2 cm.
5. The hood-type annealing furnace with adjustable cooling rate according to claim 4, wherein the fins are aluminum alloy fins.
6. The hood-type annealing furnace with adjustable cooling rate according to claim 1, wherein the maximum air intake per minute of the fan externally connected to the air intake duct is not less than 3 times of the total volume of the hearth.
7. The hood-type annealing furnace with adjustable cooling rate according to claim 1, wherein the intermediate lining is made of asbestos fiber material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921006142.3U CN210974823U (en) | 2019-07-01 | 2019-07-01 | Cover type annealing furnace with adjustable cooling speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921006142.3U CN210974823U (en) | 2019-07-01 | 2019-07-01 | Cover type annealing furnace with adjustable cooling speed |
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| Publication Number | Publication Date |
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| CN210974823U true CN210974823U (en) | 2020-07-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921006142.3U Active CN210974823U (en) | 2019-07-01 | 2019-07-01 | Cover type annealing furnace with adjustable cooling speed |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050641A (en) * | 2020-07-30 | 2020-12-08 | 因达孚先进材料(苏州)有限公司 | Carbonization furnace system |
-
2019
- 2019-07-01 CN CN201921006142.3U patent/CN210974823U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112050641A (en) * | 2020-07-30 | 2020-12-08 | 因达孚先进材料(苏州)有限公司 | Carbonization furnace system |
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