CN220230004U - Rotary annealing furnace - Google Patents
Rotary annealing furnace Download PDFInfo
- Publication number
- CN220230004U CN220230004U CN202321954699.6U CN202321954699U CN220230004U CN 220230004 U CN220230004 U CN 220230004U CN 202321954699 U CN202321954699 U CN 202321954699U CN 220230004 U CN220230004 U CN 220230004U
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- China
- Prior art keywords
- heating furnace
- gas
- heating
- liner
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000000137 annealing Methods 0.000 title claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 91
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 238000007599 discharging Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 4
- 238000005253 cladding Methods 0.000 claims description 2
- 239000007789 gas Substances 0.000 abstract description 25
- 239000000843 powder Substances 0.000 abstract description 13
- 239000001257 hydrogen Substances 0.000 abstract description 12
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 12
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 238000002360 preparation method Methods 0.000 abstract description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 9
- 238000001816 cooling Methods 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 3
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000009692 water atomization Methods 0.000 description 1
Landscapes
- Furnace Details (AREA)
Abstract
The utility model discloses a rotary annealing furnace, which comprises a heating furnace liner, wherein one side of the heating furnace liner is provided with a gas transmission device, the output end of the gas transmission device is provided with a gas rod, the heating furnace liner is connected with the gas transmission device through the gas rod, the outer side of one end of the heating furnace liner, which is far away from the gas transmission device, is provided with a movable seat, a heating cavity is arranged in the movable seat, the lower end of the movable seat is provided with a sliding device, the movable seat can axially reciprocate through the sliding device, and a driving device is arranged between the heating furnace liner and the gas transmission device, so that proper heating temperature can be kept through the sliding movable seat in the preparation process, and meanwhile, uniform contact between powder and hydrogen is ensured through axial rotation of the heating furnace liner, so that the annealing effect of a product is ensured.
Description
Technical Field
The utility model belongs to the field of annealing furnaces, and particularly relates to a rotary annealing furnace.
Background
In industry, water atomization technology is mostly adopted to prepare ferrosilicon chromium raw powder, namely iron, silicon, chromium and deoxidizer in a certain proportion are put into an intermediate frequency furnace to be heated, then alloy molten slurry is dripped into an atomization tower, and high-pressure water is used for atomizing and cooling the alloy molten slurry, but the produced ferrosilicon chromium raw powder has higher oxygen content, and can cause lower initial permeability, harder raw powder and poorer processability.
In the prior art, a boat pushing furnace and a steel belt furnace are generally utilized, and hydrogen and nitrogen gas are introduced to carry out mixed annealing to solve the problems, but because the molecular mass of the hydrogen is small, after the hydrogen is introduced, the hydrogen is distributed on the upper part of an annealing furnace, so that the hydrogen is in uneven contact with powder, and the annealing effect is poor.
Disclosure of Invention
The utility model mainly aims to provide a rotary annealing furnace for ensuring uniform contact between powder and hydrogen in the preparation process.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
the utility model provides a rotatory annealing stove, includes heating furnace courage, heating furnace courage one side is equipped with the gas-supply device, the output of gas-supply device is equipped with the gas pole, heating furnace courage with the gas-supply device passes through the gas pole is connected, the heating furnace courage is kept away from the outside of gas-supply device one end is equipped with removes the seat, it generates heat the chamber to be equipped with in the seat to remove, it is equipped with slider to remove the seat lower extreme, it is accessible to remove the seat slider carries out axial reciprocating motion for the chamber that generates heat accomplish keep away from heating furnace courage or cladding in the action of heating furnace courage, heating furnace courage with be equipped with drive arrangement between the gas-supply device, drive arrangement can make heating furnace courage carries out axial rotation.
In a specific embodiment of the present utility model, the sliding device includes at least two sliding rails and a plurality of pulleys, the pulleys are located on the lower end surface of the moving seat, the sliding rails are disposed along the length direction of the moving seat, and the pulleys are correspondingly and cooperatively connected with the sliding rails respectively.
In a specific embodiment of the utility model, a supporting seat is further arranged between the gas conveying device and the heating furnace liner, a mounting groove is formed in the top of the supporting seat, and the driving device is located in the mounting groove.
In a specific embodiment of the present utility model, at least one rotating bearing is sleeved between the air rod and the supporting seat.
In a specific embodiment of the present utility model, the output end of the driving device is provided with a screw, the air rod is provided with a tooth part, and the driving device is meshed with the tooth part through the screw so as to be connected with the air rod.
In a specific embodiment of the utility model, an air outlet is arranged at one end of the air rod, which is far away from the air conveying device, the air outlet is positioned in the heating furnace liner, an air outlet is further arranged on the air rod, and the air outlet is positioned between the heating furnace liner and the tooth part.
In a specific embodiment of the utility model, a discharging and feeding port is arranged at one end of the heating furnace pipe close to the tooth part.
In a particular embodiment of the utility model, the diameter of the heating furnace is smaller than the inner diameter of the heating chamber.
One of the above technical solutions of the present utility model has at least one of the following advantages or beneficial effects:
according to the utility model, the gas transmission device is arranged on one side of the heating furnace liner, the gas rod is arranged at the output end of the gas transmission device, the heating furnace liner is connected with the gas transmission device through the gas rod, the heating cavity is arranged on the outer side of one end, far away from the gas transmission device, of the heating furnace liner, the sliding device is arranged below the heating cavity, and the sliding device is used for driving the heating cavity to axially reciprocate in the preparation process, so that the heating cavity is far away from the heating furnace liner or is coated on the heating furnace liner, and the driving device for driving the axis of the heating furnace liner to rotate is arranged between the heating furnace liner and the gas transmission device, so that the powder and hydrogen can be fully and uniformly contacted, and further the annealing effect of a product is ensured.
Drawings
The utility model is further described below with reference to the drawings and examples;
FIG. 1 is an overall block diagram of one embodiment of the present utility model;
FIG. 2 is a top view of one embodiment of the present utility model;
figure 3 is a cross-sectional view in the A-A direction of one embodiment of the present utility model.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present utility model and are not to be construed as limiting the present utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience in describing the simplified description of the present utility model, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" may explicitly or implicitly include one or more features.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the term "connected" should be construed broadly, and for example, it may be a fixed connection or an active connection, or it may be a detachable connection or a non-detachable connection, or it may be an integral connection; may be mechanically connected, may be electrically connected, or may be in communication with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements, indirect communication or interaction relationship between the two elements.
The following disclosure provides many different embodiments, or examples, for implementing different aspects of the utility model.
Referring to fig. 1 to 3, a rotary annealing furnace comprises a heating furnace liner 2, wherein one side of the heating furnace liner 2 is provided with a gas transmission device 1, the output end of the gas transmission device 1 is provided with a gas rod 3, the heating furnace liner 2 is connected with the gas transmission device 1 through the gas rod 3, the outer side of one end of the heating furnace liner 2, which is far away from the gas transmission device 1, is provided with a movable seat 6, which is internally provided with a heating cavity 61, the lower end of the movable seat 6 is provided with a sliding device 7, the movable seat 6 can axially reciprocate through the sliding device 7, the heating cavity 61 is far away from the heating furnace liner 2 or is coated on the heating furnace liner 2, a driving device 4 is arranged between the heating furnace liner 2 and the gas transmission device 1, and the driving device 4 can axially rotate the heating furnace liner 2.
In a specific embodiment of the utility model, the output end of the driving device 4 is provided with the screw 5, the driving device 4 is meshed with the tooth part 31 through the screw 5 so as to be connected with the air rod 3, so that the heating furnace 2 axially rotates, the outer side of one end of the heating furnace 2 far away from the air conveying device 1 is provided with the movable seat 6, a heating cavity 61 is arranged in the movable seat 6, the lower end of the movable seat 6 is provided with the sliding device 7, the movable seat 6 can axially reciprocate through the sliding device 7, and therefore, the proper heating temperature can be kept through the sliding of the movable seat 6 in the preparation process, meanwhile, the uniform contact between powder and hydrogen is ensured through the axial rotation of the heating furnace 2, and the annealing effect of a product is ensured.
The utility model adopts a two-stage temperature control and segmented air inlet annealing mode, firstly, a heating cavity 61 is moved to a right preset position, the heating furnace liner 2 is pre-vacuumized, after the vacuum degree is minus 0.1MP, the heating furnace liner is switched to nitrogen circulation, and air is discharged from the innermost side of the heating furnace liner 2 through an air outlet 32; secondly, after the pressure in the heating furnace liner 2 reaches positive 0.005-positive 0.01MP, carrying out electrifying heating, starting the driving device 4 to enable the heating furnace liner 2 to rotate, and achieving the purpose of synchronous stir-frying of powder; thirdly, after the furnace temperature of the furnace pipe 2 is heated to 300 ℃, starting an igniter, alarming and reminding if the igniter does not work, and stopping the fourth step; introducing hydrogen, discharging air from the innermost side of the heating furnace liner 2 through the air outlet 32, stopping introducing nitrogen, and maintaining the internal pressure of the heating furnace liner 2 within a range from positive 0.005 MP to positive 0.01 MP; continuously heating to the highest temperature, and then preserving heat, wherein the temperature and the preserving time can be adjusted; sixthly, waiting for natural cooling; seventh, removing the heating cavity, and cooling at the moment of removing; eighth, cooling to a preset temperature, switching the air inlet from hydrogen to nitrogen, and stopping the igniter after 1 hour; ninth, stopping air outlet, air inlet, rotation and blanking after the temperature is reduced to 40 ℃; and tenth step, tilting the heating furnace liner 2, reversing for discharging, horizontally rotating the whole heating furnace liner 2, stirring powder by using baffle plates in the heating furnace liner 2, and tilting the heating furnace liner 2 for 45-degree powder discharging.
In a specific embodiment of the present utility model, the driving device 4 includes a motor and a speed reducer disposed on an output shaft of the motor, the output shaft of the speed reducer is connected with the screw 5, the screw 5 is in an up-down relationship with the tooth portion 31, the screw 5 is meshed with the tooth portion 31 through the screw 5, and the motor can drive the heating furnace liner 2 to axially rotate after the action of the speed reducer.
In a specific embodiment of the present utility model, the sliding device 7 includes two sliding rails 71 and four pulleys 72, the four pulleys 72 are located on the lower end surface of the movable seat 6, the sliding rails 71 are disposed along the length direction of the movable seat 6, the pulleys 72 are correspondingly and cooperatively connected with the sliding rails 71 respectively, and the heating cavity 61 can be conveniently heated and cooled in time by arranging the sliding device 7.
In a specific embodiment of the utility model, a supporting seat 8 is further arranged between the gas conveying device 1 and the heating furnace liner 2, a mounting groove 81 is formed in the top of the supporting seat 8, the driving device 4 is positioned in the mounting groove 81, the supporting seat 8 can support the driving device 4, and meanwhile, the meshing connection position of the screw 5 and the tooth part 31 can be protected.
In a specific embodiment of the utility model, one end of the air rod 3 far away from the air delivery device 1 is provided with the air outlet 32, the air outlet 32 is positioned in the heating furnace liner 2, so that leakage can be avoided when hydrogen and nitrogen are introduced, meanwhile, the air rod 3 is also provided with the air outlet 33, waste gas is conveniently discharged, the air outlet 33 is positioned between the heating furnace liner 2 and the tooth part 31, one end of the heating furnace liner 2 near the tooth part 31 is provided with the discharging and feeding port 21, and the heating furnace liner 2 can be inclined by 45 degrees to discharge powder when horizontal rotation and powder stirring are performed by arranging the discharging and feeding port 21.
In a specific embodiment of the utility model, two rotating bearings 9 are sleeved between the air rod 3 and the supporting seat 8, so that the air rod 3 can be protected from being damaged in the rotating process, and the rotating is free from blocking.
In a specific embodiment of the utility model, the diameter of the heating furnace liner 2 is smaller than the inner diameter of the heating cavity 61, so that the movable seat 6 can be ensured to easily convey the heating furnace liner 2 into the heating cavity 61 for heating when axially reciprocating under the action of the sliding device 7.
While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (8)
1. The utility model provides a rotatory annealing stove, its characterized in that, includes heating furnace courage (2), heating furnace courage (2) one side is equipped with gas-supply device (1), the output of gas-supply device (1) is equipped with gas pole (3), heating furnace courage (2) with gas-supply device (1) are passed through gas pole (3) are connected, heating furnace courage (2) are kept away from the outside of gas-supply device (1) one end is equipped with removes seat (6), it is equipped with heating chamber (61) to remove in seat (6), it is equipped with slider (7) to remove seat (6) lower extreme, remove seat (6) accessible slider (7) carries out axial reciprocating motion for heating chamber (61) accomplish keep away from heating furnace courage (2) or cladding in heating furnace courage (2) action, heating furnace courage (2) with be equipped with drive arrangement (4) between gas-supply device (1), drive arrangement (4) can make heating furnace courage (2) axially rotates.
2. The rotary annealing furnace according to claim 1, wherein: the sliding device (7) comprises at least two sliding rails (71) and a plurality of pulleys (72), the pulleys (72) are located on the lower end face of the movable seat (6), the sliding rails (71) are arranged along the length direction of the movable seat (6), and the pulleys (72) are correspondingly matched and connected with the sliding rails (71) respectively.
3. The rotary annealing furnace according to claim 1, wherein: a supporting seat (8) is further arranged between the gas transmission device (1) and the heating furnace liner (2), a mounting groove (81) is formed in the top of the supporting seat (8), and the driving device (4) is located in the mounting groove (81).
4. A rotary annealing furnace according to claim 3, wherein: at least one rotating bearing (9) is sleeved between the air rod (3) and the supporting seat (8).
5. The rotary annealing furnace according to claim 1, wherein: the output end of the driving device (4) is provided with a screw rod (5), the air rod (3) is provided with a tooth part (31), and the driving device (4) is meshed with the tooth part (31) through the screw rod (5) so as to be connected with the air rod (3).
6. The rotary annealing furnace according to claim 5, wherein: one end of the air rod (3) far away from the air conveying device (1) is provided with an air outlet (32), the air outlet (32) is positioned in the heating furnace liner (2), the air rod (3) is further provided with an air outlet (33), and the air outlet (33) is positioned between the heating furnace liner (2) and the tooth part (31).
7. The rotary annealing furnace according to claim 6, wherein: one end of the heating furnace liner (2) close to the tooth part (31) is provided with a discharging and feeding hole (21).
8. The rotary annealing furnace according to claim 1, wherein: the diameter of the heating furnace liner (2) is smaller than the inner diameter of the heating cavity (61).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321954699.6U CN220230004U (en) | 2023-07-24 | 2023-07-24 | Rotary annealing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321954699.6U CN220230004U (en) | 2023-07-24 | 2023-07-24 | Rotary annealing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220230004U true CN220230004U (en) | 2023-12-22 |
Family
ID=89183960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321954699.6U Active CN220230004U (en) | 2023-07-24 | 2023-07-24 | Rotary annealing furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220230004U (en) |
-
2023
- 2023-07-24 CN CN202321954699.6U patent/CN220230004U/en active Active
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