CN109321722B - Spheroidizing annealing furnace - Google Patents
Spheroidizing annealing furnace Download PDFInfo
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- CN109321722B CN109321722B CN201811172787.4A CN201811172787A CN109321722B CN 109321722 B CN109321722 B CN 109321722B CN 201811172787 A CN201811172787 A CN 201811172787A CN 109321722 B CN109321722 B CN 109321722B
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- furnace body
- wind wheel
- plate
- side plate
- furnace
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/32—Soft annealing, e.g. spheroidising
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Abstract
The invention discloses a spheroidizing annealing furnace, which comprises an outer furnace body, wherein the outer furnace body is provided with a furnace shoulder, a furnace cover is arranged on the outer furnace body, an electric heating wire is arranged on the outer furnace body, an inner furnace body is arranged in the outer furnace body, the inner furnace body is provided with a vent, the inner bottom of the outer furnace body is provided with a flow guide frame, the flow guide frame comprises a flow guide bottom plate, the center of the flow guide bottom plate is provided with a wind wheel installation area, the center of the wind wheel installation area is provided with a wind wheel shaft, the wind wheel shaft is provided with a wind wheel, a motor is connected to the wind wheel shaft, and a wind guide piece is arranged on the flow guide bottom plate; the inner furnace body is provided with a material carrying plate, the material carrying plate comprises a central cylinder, an annular array on the central cylinder is provided with an extension side plate, the outer side of the central cylinder is provided with a plurality of support annular sheets, the extension side plate is provided with a clamping groove, and the support annular sheets are embedded in the clamping groove. The annealing furnace realizes uniform and stable temperature in the furnace through internal airflow diversion, and achieves uniform annealing effect; and the grid-shaped material carrying plates play a role of overhead steel, so that the temperature difference between the upper part and the lower part is small, and the annealing is uniform.
Description
Technical Field
The invention relates to the technical field of annealing furnaces, in particular to a spheroidizing annealing furnace.
Background
The spheroidizing annealing furnace is used for spheroidizing annealing steel, heating wires are paved on the inner wall of the furnace body, and then the furnace body is covered by a furnace cover, so that the temperature in the furnace is increased and lasts for a certain time, the spheroidizing annealing operation is realized, but the existing furnace body has a simple structure, and the annealing degree of the steel is different due to different temperatures at different positions in the furnace, so that the subsequent processing and use are affected; and the steel is placed on the bottom surface of the furnace for annealing, the bottom temperature is higher than the top, the upper temperature and the lower temperature are different greatly, and the annealing effect is poor. Accordingly, the invention provides a spheroidizing annealing furnace.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a spheroidizing annealing furnace which realizes uniform and stable temperature in the furnace and achieves a uniform annealing effect by dividing internal air flow; and the effect of overhead steel is achieved through the arrangement of the grid-shaped material carrying plates, so that the upper and lower temperature difference is small, the annealing is uniform, and the annealing effect is good.
In order to solve the technical problems, the aim of the invention is realized as follows: the invention relates to a spheroidizing annealing furnace, which comprises an outer furnace body with an upward furnace mouth, wherein the outer furnace body is provided with a furnace shoulder, a furnace cover is further arranged on the outer furnace body, an electric heating wire is arranged on the inner wall of the outer furnace body, an inner furnace body is arranged in the outer furnace body, a vent is arranged at the bottom of the inner furnace body, a diversion frame positioned below the inner furnace body is arranged at the inner bottom of the outer furnace body, the diversion frame comprises a diversion bottom plate, the edge of the diversion bottom plate is provided with a vertically upward raised flanging, a wind wheel installation area is arranged in the center of the diversion bottom plate, a wind wheel shaft which is connected onto the diversion bottom plate in a switching manner is arranged at the center of the wind wheel installation area, a motor for controlling the rotation of the wind wheel shaft is connected onto the wind wheel shaft, a plurality of wind guide pieces which are arranged on the diversion bottom plate in a central annular array form, each wind guide channel is provided with an air inlet close to the wind wheel installation area and an air outlet which is far away from the wind wheel installation area, the tail end of the wind guide piece is provided with a tail end close to the wind wheel installation area, the tail end of the wind guide bottom plate is abutted against the flanging inner wall, the tail end of the wind guide bottom plate is abutted against a limit block tip part, and the V-shaped wind guide piece is fixedly connected between the V-shaped wind guide part and the limit block; the utility model discloses a furnace body, including interior furnace body, including the inner bottom surface of furnace body, the inner bottom surface of furnace body is equipped with the material carrying board, and the material carrying board includes the central drum, and annular array has a plurality of extension curb plates on the central drum, and the contained angle between the adjacent two extension curb plates equals, extension curb plate one end and central drum welding, the bottom of the other end has the chamfer, the central drum outside is equipped with a plurality of diameters from inside to outside and increases in proper order support ring piece, support ring piece with the equal coaxial line of central drum sets up, set up notch ascending inlay draw-in groove on the extension curb plate, support ring piece inlay and establish in inlay the draw-in groove.
The invention is further provided with: the two sides of the air guide piece are also stuck with side limiting blocks fixedly connected on the flow guide bottom plate.
The invention is further provided with: the air guide piece comprises a first side plate and a second side plate, one ends of the first side plate and the second side plate are welded, and a tail connecting plate is arranged between the other ends of the first side plate and the second side plate; the first side plate and the second side plate are curved plates with the middle parts bent towards the same side.
The invention is further provided with: an intermediate connecting plate is further arranged between the first side plate and the second side plate.
The invention is further provided with: stress relief holes are formed in the extending side plates and/or the supporting annular plates.
The invention is further provided with: the furnace cover is embedded with a sealing strip which is pressed on the furnace shoulder.
The invention is further provided with: the sealing strip is made of ceramic fiber materials.
In summary, the invention has the following beneficial effects: according to the spheroidizing annealing furnace, the guide frame is arranged between the inner furnace body and the outer furnace body, the motor carries the wind wheel to rotate to generate air flow, and the air flow is split through the air guide channel on the guide frame, so that the outer side of the inner furnace body is uniformly heated, the temperature in the furnace is uniform and stable, and a uniform annealing effect is achieved; the material carrying plate is erected at the bottom of the annealed steel, is a disc-shaped grid, has good heat conduction and heat dissipation effects, and ensures that the temperature difference between the upper temperature and the lower temperature of the steel is small, the annealing is uniform, the annealing effect is good, the overall function is perfect, and the practicability is strong.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a structure embodying the present invention for a deflector frame;
FIG. 3 is a schematic view of a structure embodying the present invention for an air guide;
FIG. 4 is a schematic view of a structure of a loading plate embodying the present invention;
fig. 5 is a schematic view of a structure embodying the extension side plate of the present invention.
Detailed Description
The invention will be further described with reference to the drawings and preferred embodiments.
Referring to fig. 1 to 5, the spheroidizing annealing furnace according to the embodiment comprises an outer furnace body 1 with an upward furnace mouth, wherein the outer furnace body 1 is provided with a furnace shoulder 2, the outer furnace body 1 is also provided with a furnace cover 3, the inner wall of the outer furnace body 1 is provided with an electric heating wire 4, the outer furnace body 1 is internally provided with an inner furnace body 5, the bottom of the inner furnace body 5 is provided with a ventilation opening 6, the inner bottom of the outer furnace body 1 is provided with a flow guide frame 7 positioned below the inner furnace body 5, the flow guide frame 7 comprises a flow guide bottom plate 8, the edge of the flow guide bottom plate 8 is provided with a vertically upward raised flange 9, the center of the flow guide bottom plate 8 is provided with a wind wheel installation area 10, the center of the wind wheel installation area 10 is provided with a wind wheel shaft 11 which is switched on the flow guide bottom plate 8, the wind wheel shaft 11 is provided with a wind wheel 12, the wind wheel shaft 11 is connected with a motor 13 for controlling the wind wheel shaft 11 to rotate, the flow guide bottom plate 8 is provided with a plurality of wind guide pieces 14 which are arrayed in a ring shape around the wind wheel shaft 11, two adjacent wind guide pieces 14 form a wind guide channel 15, the wind guide channel 15 is provided with a wind inlet 16 close to the wind wheel installation area 10 and a wind outlet 17 away from the wind wheel installation area 10, the wind guide piece 14 is provided with a tip end 18 close to the wind wheel installation area 10 and a tail end 19 away from the wind wheel installation area 10, the tail end 19 is abutted against the inner wall of the flanging 9, the tip end 18 is abutted with a V-shaped limiting block 20 fixedly connected with the flow guide bottom plate 8, and the wind guide piece 14 is clamped between the V-shaped limiting block 20 and the flanging 9 in an embedded manner, so that the wind guide piece 14 can be disassembled, and the installation and the disassembly are convenient; the inner bottom surface of the inner furnace body 5 is provided with a material carrying plate 21, the material carrying plate 21 comprises a central cylinder 22, a plurality of extending side plates 23 are annularly arranged on the central cylinder 22, the included angles between two adjacent extending side plates 23 are equal, one end of each extending side plate 23 is welded with the central cylinder 22, the bottom of the other end of each extending side plate is provided with a rounding corner 24, the outer side of the central cylinder 22 is internally provided with a plurality of supporting circular ring pieces 25 with diameters sequentially increased from inside to outside, the supporting circular ring pieces 25 and the central cylinder 22 are coaxially arranged, the extending side plates 23 are provided with clamping grooves 26 with upward notch, and the supporting circular ring pieces 25 are embedded in the clamping grooves 26.
Furthermore, the two sides of the air guiding member 14 are further attached with side limiting blocks 27 fixedly connected to the air guiding bottom plate 8, which play a role in laterally limiting the movement of the air guiding member 14 and are used for limiting and preventing the air guiding member 14 from moving laterally.
Further, the air guide 14 includes a first side plate 28 and a second side plate 29, one end of the first side plate 28 and one end of the second side plate 29 are welded, and a tail connecting plate 30 is disposed between the other end of the first side plate 28 and the second side plate 29; the first side plate 28 and the second side plate 29 are curved plates with the middle parts bent towards the same side, so that after the airflow is generated along with the wind wheel 12, the airflow can be guided along the curved side plates, the resistance is small, the decay speed of the airflow is slowed down, and the air guiding effect is good.
Further, an intermediate connecting plate 31 is further disposed between the first side plate 28 and the second side plate 29, so as to strengthen the overall structural strength of the air guide member 14, and the air guide member 14 is not easy to break when being dropped during the assembly and disassembly processes.
Further, the extending side plate 23 and/or the supporting ring plate 25 are provided with stress relief holes 32 for relieving stress after being heated, so as to prevent deformation caused by overheating of the extending side plate 23 and/or the supporting ring plate 25, and further serve as heat dissipation holes.
Furthermore, the sealing strip 33 pressed on the furnace shoulder 2 is embedded on the furnace cover 3, so that the tightness is improved, and the heat insulation function is realized.
Further, the sealing strip 33 is made of ceramic fiber material, and has excellent high temperature resistance.
According to the invention, the guide frame is arranged between the inner furnace body and the outer furnace body, the motor rotates with the wind wheel to generate air flow, and the air flow is split through the air guide channel on the guide frame, so that the outer side of the inner furnace body is uniformly heated, the temperature in the furnace is uniform and stable, and a uniform annealing effect is achieved; the material carrying plate is erected at the bottom of the annealed steel, is a disc-shaped grid, has good heat conduction and heat dissipation effects, and ensures that the temperature difference between the upper temperature and the lower temperature of the steel is small, the annealing is uniform, the annealing effect is good, the overall function is perfect, and the practicability is strong.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.
Claims (3)
1. The utility model provides a spheroidizing annealing stove, includes furnace mouth up outer furnace body (1), and outer furnace body (1) have furnace shoulder (2), still be equipped with bell (3), its characterized in that on outer furnace body (1): an electric heating wire (4) is arranged on the inner wall of the outer furnace body (1), an inner furnace body (5) is arranged in the outer furnace body (1), a vent (6) is arranged at the bottom of the inner furnace body (5), a guide frame (7) positioned below the inner furnace body (5) is arranged at the inner bottom of the outer furnace body (1), the guide frame (7) comprises a guide bottom plate (8), a flanging (9) which is vertically and upwards raised is arranged at the edge of the guide bottom plate (8), a wind wheel installation area (10) is arranged at the center of the guide bottom plate (8), a wind wheel shaft (11) which is connected to the guide bottom plate (8) in a switching manner is arranged at the center of the wind wheel installation area (10), a wind wheel (12) is arranged on the wind wheel shaft (11), a plurality of wind guide pieces (14) which are arranged on the guide bottom plate (8) in a central annular array, two adjacent wind guide pieces (14) form a wind guide channel (15), the wind guide channel (15) is provided with a wind inlet (16) close to the wind wheel installation area (10) and a wind wheel installation area (17) which is far away from the wind wheel installation area (10), the wind wheel shaft (11) is connected to a wind wheel end (19) which is close to the wind wheel end (10) of the wind wheel (10), the tail end (19) is abutted against the inner wall of the flanging (9), the tip end (18) is abutted against a V-shaped limiting block (20) fixedly connected with the flow guide bottom plate (8), and the air guide piece (14) is clamped between the V-shaped limiting block (20) and the flanging (9); the inner bottom surface of the inner furnace body (5) is provided with a material carrying plate (21), the material carrying plate (21) comprises a central cylinder (22), a plurality of extending side plates (23) are annularly arranged on the central cylinder (22), the included angles between two adjacent extending side plates (23) are equal, one end of each extending side plate (23) is welded with the central cylinder (22), the bottom of the other end of each extending side plate is provided with a rounding corner (24), the outer side of the central cylinder (22) is provided with a plurality of supporting circular ring pieces (25) with sequentially increased diameters from inside to outside, the supporting circular ring pieces (25) and the central cylinder (22) are coaxially arranged, the extending side plates (23) are provided with clamping grooves (26) with upward notch, and the supporting circular ring pieces (25) are embedded in the clamping grooves (26);
side limiting blocks (27) fixedly connected to the flow guide bottom plate (8) are also attached to two sides of the air guide piece (14);
the air guide piece (14) comprises a first side plate (28) and a second side plate (29), one ends of the first side plate (28) and the second side plate (29) are welded, and a tail connecting plate (30) is arranged between the other ends of the first side plate (28) and the second side plate (29); the first side plate (28) and the second side plate (29) are curved plates with the middle parts bent towards the same side;
an intermediate connecting plate (31) is arranged between the first side plate (28) and the second side plate (29);
stress relief holes (32) are formed in the extending side plates (23) and/or the supporting annular sheets (25).
2. The spheroidizing annealing furnace of claim 1, wherein: the furnace cover (3) is embedded with a sealing strip (33) pressed on the furnace shoulder (2).
3. The spheroidizing annealing furnace of claim 2, wherein: the sealing strip (33) is made of ceramic fiber materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172787.4A CN109321722B (en) | 2018-10-09 | 2018-10-09 | Spheroidizing annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811172787.4A CN109321722B (en) | 2018-10-09 | 2018-10-09 | Spheroidizing annealing furnace |
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| Publication Number | Publication Date |
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| CN109321722A CN109321722A (en) | 2019-02-12 |
| CN109321722B true CN109321722B (en) | 2023-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811172787.4A Active CN109321722B (en) | 2018-10-09 | 2018-10-09 | Spheroidizing annealing furnace |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110257602A (en) * | 2019-07-22 | 2019-09-20 | 嘉兴金凌五金科技股份有限公司 | For softening the balling furnace of wire rod |
| CN115323129A (en) * | 2022-09-19 | 2022-11-11 | 湖北浩运新材料科技有限公司 | Ultra-low carbon steel bar spheroidizing annealing process and device thereof |
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| WO2015128416A1 (en) * | 2014-02-26 | 2015-09-03 | Sms Group Gmbh | Method and system for thermally treating elongate, flat metallic material, in particular aluminum rolled ingots, in a ring hearth furnace |
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| CN109321722A (en) | 2019-02-12 |
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Effective date of registration: 20230717 Address after: 314100 West side of Building 2, No. 66, Huinan Road, Huimin Street, Jiashan County, Jiaxing, Zhejiang Province Patentee after: Jiaxing Zhongmao Industrial Furnace Co.,Ltd. Address before: 314000 Building 1, No. 116, Weizhong Road, Weitang Street, Jiashan County, Jiaxing City, Zhejiang Province Patentee before: JIAXING ZHONGMAO INDUSTRIAL Co.,Ltd. |
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