Atmosphere sintering furnace with built-in shimmy rotation

Abstract

The atmosphere sintering furnace comprises a control box, a mounting groove with the top open is formed in the control box, a shimmy driving mechanism is mounted on the bottom wall of the mounting groove, and the shimmy driving mechanism is in driving connection with a heat treatment mechanism. The heat treatment mechanism is arranged in the mounting groove and rotationally connected with the mounting groove, the heat treatment mechanism comprises a first furnace body mounted at the top end of the heat treatment mechanism and a second furnace body covering the first furnace body in a turnover mode, and a hearth is formed between the first furnace body and the second furnace body; and a rotatable sintering pipe is mounted in the hearth. The heat treatment mechanism is driven by the shimmy driving mechanism to swing back and forth, and the sintering pipe is driven by the rotary driving mechanism to rotate around the hearth, so that materials dynamically roll in the sintering pipe in the heating process, the heating area of the materials is increased, the heating efficiency is improved, the materials are uniformly heated in the heating process, and the reaction is more sufficient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sintering furnace equipment, in particular to an atmosphere sintering furnace with built-in swing and rotation. BACKGROUND

[0002] The sintering furnace is a heat treatment equipment applied in laboratories to perform calcination, drying, high-temperature reaction, heat treatment and carbonization of powder or granular materials such as lithium-ion battery positive and negative materials (e.g. lithium iron phosphate, lithium manganate, lithium cobaltate, ternary material, graphite negative electrode, etc.), rare earth materials, chemical catalytic materials, magnetic materials, powder metallurgy materials, non-ferrous metal materials and kaolin.

[0003] The traditional sintering furnace generally includes a furnace body, a heating element, a sealing device and a temperature control system. During the heat treatment process, the materials are placed in the furnace chamber, and the heating element provides heat to make the materials complete the heat treatment process under specific temperature and atmosphere conditions. In the heating process of the traditional sintering furnace, the temperature distribution in the furnace chamber is uneven, and the materials are in a static placement state, which leads to uneven heating of the materials and affects the efficiency of the heating reaction. Moreover, the internal heat transfer efficiency of the materials is low in the static state, which results in insufficient reaction and makes it difficult to achieve the ideal heat treatment effect.

[0004] Therefore, we propose an atmosphere sintering furnace with built-in swing and rotation to solve the existing problems. CONTENT OF THE INVENTION

[0005] The purpose of the present application is to provide an atmosphere sintering furnace with built-in swing and rotation to solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: an atmosphere sintering furnace with built-in swing and rotation, comprising a control box, wherein an installation slot with an open top is provided on the control box, a swing driving mechanism is installed on the bottom wall of the installation slot, a heat treatment mechanism is drivingly connected to the swing driving mechanism, the heat treatment mechanism is arranged in the installation slot and rotationally connected between the heat treatment mechanism and the installation slot, the heat treatment mechanism comprises a first furnace body installed at its top end and a second furnace body which can be flipped to cover the first furnace body, a furnace chamber is formed between the first furnace body and the second furnace body, a rotatable sintering tube is installed in the furnace chamber, and a rotation driving mechanism is connected to one end of the sintering tube through the side wall of the first furnace body and the second furnace body.

[0007] Preferably, a heat radiation cover is installed on the opposite side end face between the first furnace body and the second furnace body, a first heating core is installed between the first furnace body and the heat radiation cover, and a second heating core is installed between the second furnace body and the heat radiation cover.

[0008] Preferably, the sintering tube is rotatably mounted between two heat radiation covers, and a plurality of heat-conducting holes are formed in the end faces of the two heat radiation covers.

[0009] Preferably, the sintering tube comprises a hollow tube body, a detachable first sealing valve is sealingly connected to one end of the tube body, and a detachable second sealing valve is sealingly connected to the other end of the tube body, the second sealing valve is provided with a rotating shaft and is mounted with a first driven gear driven connected with a rotating drive mechanism through the rotating shaft.

[0010] Preferably, the rotating drive mechanism comprises a first drive motor, the output end of the first drive motor is drivingly connected with a first driving gear, the first driving gear is meshingly connected with the first driven gear, and the first drive motor is externally connected with a support frame and is fixedly connected with the side wall of the first furnace body through the support frame.

[0011] Preferably, the first sealing valve comprises an air pipe sealingly connected to the tube body at one end, a pressure gauge and an airtight valve are mounted on the other end of the air pipe away from the tube body in sequence, and the end of the air pipe is provided with a connecting port.

[0012] Preferably, the heat treatment mechanism further comprises a temperature control box mounted at the bottom of the first furnace body, support shafts are fixedly mounted on the front and rear end faces of the outer wall of the temperature control box, support grooves corresponding to the positions of the support shafts are arranged on the inner wall end faces of the mounting grooves, the support shafts are rotatably mounted in the support grooves, and bearings are arranged between the support shafts and the support grooves.

[0013] Preferably, an oscillating gear is fixedly mounted on the bottom wall of the temperature control box, and the oscillation drive mechanism is drivingly connected with the oscillating gear.

[0014] Preferably, the oscillation drive mechanism comprises a worm arranged in the mounting groove and rotatably connected between the control box, a helical line tooth of the worm is arranged on the middle segment of the worm and is meshingly connected with the oscillating gear, a second driven gear is fixedly connected to one end of the worm through the control box, a second drive motor is mounted on the corresponding end of the outer wall of the control box, a second driving gear is mounted on the output end of the second drive motor and is meshingly connected with the second driven gear.

[0015] Preferably, the temperature control box is electrically connected with the first furnace body and the second furnace body, the control box is electrically connected with the temperature control box, a control panel is further mounted on the front end face of the control box, and the control panel is electrically connected with the control box, the oscillation drive mechanism and the rotating drive mechanism.

[0016] The utility model provides a kind of atmosphere sintering furnace of built-in swing, compared with prior art, its beneficial effect is: the utility model drives heat treatment mechanism reciprocating swing by swing drive mechanism, drive sintering tube rotates around hearth by rotary drive mechanism, to make material dynamic tumbling motion in sintering tube in heating process, increase the heating area of material, improve heating efficiency, ensure that material is evenly heated in heating process, make reaction more fully. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is three-dimensional structure schematic diagram of the utility model;

[0018] Figure 2 It is front view structure schematic diagram of the utility model;

[0019] Figure 3 It is control box and heat treatment mechanism installation state structure schematic diagram of the utility model;

[0020] Figure 4 It is the connection relationship three-dimensional structure explosion schematic diagram between first furnace body and second furnace body of the utility model;

[0021] Figure 5 It is sintering tube three-dimensional structure explosion schematic diagram of the utility model;

[0022] Figure 6 It is three-dimensional cut structure schematic diagram of the utility model;

[0023] Figure 7 It is side surface structure sectional view schematic diagram of the utility model.

[0024] In the drawing: 1, control box;11, installation groove;111, support groove;12, control panel;2, heat treatment mechanism;21, first furnace body;211, first heating core;22, second furnace body;221, second heating core;23, temperature control box;231, support rotating shaft;24, swing gear;3, rotary drive mechanism;31, first drive motor;32, first driving gear;4, sintering tube;41, first sealing valve;411, air pipe;412, pressure gauge;413, gas-tight valve;414, connecting port;42, pipe body;43, second sealing valve;44, first driven gear;5, hearth;6, heat radiation cover;61, heat conduction hole;7, swing drive mechanism;71, worm;711, helical tooth;72, second driven gear;73, second driving gear;74, second drive motor. DETAILED DESCRIPTION

[0025] In the following, the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative effort should fall into the protection scope of the present application.

[0026] It should be noted that the terms "first", "second" and the like in the description and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "comprise" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units does not necessarily limit to those clearly listed steps or units, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0027] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0028] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For a person of ordinary skill in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0029] In addition, the meaning of the term "a plurality of" should be two and more than two.

[0030] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments. Embodiments

[0031] As Figures 1 to 7As shown, an atmosphere sintering furnace with built-in swing rotation, comprising a control box 1, the control box 1 is provided with a top open mounting groove 11, the bottom wall of the mounting groove 11 is provided with a swing driving mechanism 7, the swing driving mechanism 7 is drivingly connected with a heat treatment mechanism 2, the heat treatment mechanism 2 is arranged in the mounting groove 11 and is rotatably connected between the heat treatment mechanism 2 and the mounting groove 11, the heat treatment mechanism 2 is rotatably arranged in the mounting groove 11 and reciprocally swings in the mounting groove 11 by the driving action of the swing driving mechanism 7, the heat treatment mechanism 2 comprises a first furnace body 21 arranged at the top end thereof and a second furnace body 22 which can be reversibly covered on the first furnace body 21, a hearth 5 is formed between the first furnace body 21 and the second furnace body 22, a rotatable sintering tube 4 is arranged in the hearth 5, the sintering tube 4 is used for placing materials to be heated and sintered, the first furnace body 21 and the second furnace body 22 are arranged outside the sintering tube 4 to heat the sintering tube 4 and heat treat the materials in the sintering tube 4, one end of the sintering tube 4 penetrates through the side wall of the first furnace body 21 and the second furnace body 22 and is connected with a rotary driving mechanism 3, which is used for driving the sintering tube 4 to rotate around the hearth 5 during the heat treatment process, and at the same time, the rotary driving mechanism 3 cooperates with the reciprocating swing movement of the heat treatment mechanism 2 to make the materials in the sintering tube 4 be shaken and dispersed under the action of the rotation of the sintering tube 4 and the swing of the whole first furnace body 21, the second furnace body 22 and the sintering tube 4 driven by the heat treatment mechanism 2, so that the materials in the sintering tube 4 are shaken and dispersed under the action of inertia during the movement, thereby increasing the heating area between the materials and the heat source, making the materials be heated more uniformly and react more fully during the heating process.

[0032] In the embodiment, the opposite side end faces of the first furnace body 21 and the second furnace body 22 are both provided with a heat radiation cover 6, a first heating core 211 is arranged between the first furnace body 21 and the heat radiation cover 6, and a second heating core 221 is arranged between the second furnace body 22 and the heat radiation cover 6, which are used for making the heat emitted by the first heating core 211 and the second heating core 221 be uniformly diffused through the heat radiation cover 6 during the heating process, so that the temperatures of each region in the hearth 5 formed between the first furnace body 21 and the second furnace body 22 tend to be the same.

[0033] In the embodiment, the sintering tube 4 is rotatably arranged between the two heat radiation covers 6, a plurality of heat conduction holes 61 are formed in the end faces of the two heat radiation covers 6, which are used for making the heat emitted by the first heating core 211 and the second heating core 221 be more quickly acted on the sintering tube 4 through the heat radiation cover 6 and the heat conduction holes 61 arranged on the heat radiation cover 6 during the heating process, so that the materials added in the sintering tube 4 are heated, and at the same time, the uniform heating of each region of the sintering tube 4 is ensured, so that the materials are uniformly sintered in the hearth 5.

[0034] In the embodiment, the sintering tube 4 comprises a hollow tube body 42, one end of the tube body 42 is sealingly connected with a detachable first sealing valve 41, the other end is sealingly connected with a detachable second sealing valve 43, the second sealing valve 43 is provided with a rotating shaft and is installed with a first driven gear 44 driven connected with the rotary drive mechanism 3 through the rotating shaft, the detachable first sealing valve 41 and the second sealing valve 43 are arranged at both ends of the tube body 42, which is convenient for adding the material to be heated to the tube body 42, and the first sealing valve 41 and the second sealing valve 43 are sealingly connected with the tube body 42, so as to avoid the leakage of the material itself and the product generated by the heating reaction of the material during the heating process.

[0035] In the embodiment, the rotary drive mechanism 3 comprises a first drive motor 31, the output end of the first drive motor 31 is drivingly connected with a first driving gear 32, the first driving gear 32 is meshingly connected with the first driven gear 44, the first drive motor 31 is externally connected with a support frame and is fixedly connected with the side wall of the first furnace body 21 through the support frame, the first driving gear 32 is driven by the first drive motor 31 to drive the first driven gear 44 to rotate, so as to drive the whole sintering tube 4 to rotate around the hearth 5 through the first driven gear 44, so that the material in the sintering tube 4 is dynamically tumbled and uniformly heated, which ensures that the material fully reacts, and the tumbling movement of the material increases the heating area and improves the heating efficiency.

[0036] In the embodiment, the first sealing valve 41 comprises a breather pipe 411 sealingly connected with the tube body 42, a pressure gauge 412 and an airtight valve 413 are installed on the other end of the breather pipe 411 away from the tube body 42 in sequence, and a connecting port 414 is arranged at the end of the breather pipe 411, when in use, the external equipment is connected through the connecting pipe port, which is used for vacuumizing the sintering tube 4 or introducing the gas required for the material reaction into the sintering tube 4, such as inert gas for protecting the material, catalytic gas for accelerating the material reaction, etc., the airtight valve 413 is used for closing the sintering tube 4 to avoid gas leakage, and the pressure gauge 412 is used for detecting the pressure value change of the sintering tube 4 during the heating process.

[0037] In the embodiment, the heat treatment mechanism 2 further comprises a temperature control box 23 installed at the bottom of the first furnace body 21, support shafts 231 are fixedly installed on the front and rear end faces of the outer wall of the temperature control box 23, support grooves 111 corresponding in position to the support shafts 231 are arranged on the end face of the inner wall of the installation groove 11, the support shafts 231 are rotatably installed in the support grooves 111 and bearings are arranged between the support shafts 231 and the support grooves 111, in use, the overall load of the heat treatment mechanism 2 borne by the control box 1 is borne through cooperation of the support shafts 231 and the support grooves 111 in the installation groove 11, so that the heat treatment mechanism 2 is driven by the swing driving mechanism 7 to swing back and forth around the central axis of the support grooves 111 through the support shafts 231, bearings are arranged between the support shafts 231 and the support grooves 111 to reduce friction, so that the heat treatment mechanism 2 can swing back and forth stably.

[0038] In the embodiment, the bottom wall of the temperature control box 23 is fixedly installed with a swing gear 24, and the swing driving mechanism 7 is drivingly connected with the swing gear 24.

[0039] In the embodiment, the swing driving mechanism 7 comprises a worm 71 rotatably connected between the installation groove 11 and the control box 1, a helical tooth 711 engagedly connected with the swing gear 24 is arranged at the middle segment of the worm 71, a second driven gear 72 is fixedly connected to one end of the worm 71 through the control box 1, a second driving motor 74 is installed on the corresponding one end outer wall of the control box 1, a second driving gear 73 is installed on the output end of the second driving motor 74, the second driving gear 73 is engagedly connected with the second driven gear 72, when the second driving motor 74 is started, the second driving gear 73 drives the second driven gear 72 to rotate, thereby driving the worm 71 to rotate, the rotation of the worm 71 drives the heat treatment mechanism 2 to swing around the central axis of the support grooves 111 through the helical tooth 711 arranged at the middle segment of the worm 71 and engaged with the swing gear 24, the second driving motor 74 is controlled by PID, the rotation direction of the second driving motor 74 is changed according to frequency, thereby realizing the reciprocating swing of the heat treatment mechanism 2 around the central axis of the support grooves 111 through the support shafts 231, so that the materials in the sintering furnace move dynamically in the heating process, can be uniformly heated, and the full reaction of the materials is ensured.

[0040] In the embodiment, the temperature control box 23 is electrically connected with the first furnace body 21 and the second furnace body 22, the control box 1 is electrically connected with the temperature control box 23, the control panel 12 is further installed on the front end of the control box 1, the control panel 12 is electrically connected with the control box 1, the swing driving mechanism 7 and the rotary driving mechanism 3, the control panel 12 is electrically connected with the control box 1, the swing driving mechanism 7 and the rotary driving mechanism 3, and is used for realizing centralized control and operation of the whole device; in use, a user inputs operation instructions through the control panel 12, the control panel 12 transmits the instructions to the control box 1, and the control box 1 coordinates and controls the cooperative work between the temperature control box 23, the swing driving mechanism 7 and the rotary driving mechanism 3 according to the received instructions.

[0041] Specifically, the temperature control box 23 adjusts the heating temperature of the first heating core 211 in the first furnace body 21 and the second heating core 221 in the second furnace body 22 in the heat treatment mechanism 2 according to the instructions of the control box 1, ensures that the temperature in the hearth 5 in the heat treatment process is kept in the temperature range required by the material heating, and the swing driving mechanism 7 and the rotary driving mechanism 3 execute corresponding swing and rotary actions by receiving the instructions of the control box 1, so that the material moves dynamically in the sintering pipe 4 in the heating process, and the reaction is more sufficient.

[0042] The above specific embodiments are only preferred embodiments of the utility model, and based on the technical scheme of the utility model and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations on the above specific embodiments.

Claims

1. A built-in oscillating and rotating atmosphere sintering furnace, comprising a control box (1), characterized in that: The control box (1) is provided with an open-top mounting slot (11). A swing drive mechanism (7) is installed on the bottom wall of the mounting slot (11). The swing drive mechanism (7) drives and connects to a heat treatment mechanism (2). The heat treatment mechanism (2) is located in the mounting slot (11) and is rotatably connected to the mounting slot (11). The heat treatment mechanism (2) includes a first furnace body (21) installed at its top and a second furnace body (22) that can be flipped and covered on the first furnace body (21). A furnace chamber (5) is formed between the first furnace body (21) and the second furnace body (22). A rotatable sintering tube (4) is installed in the furnace chamber (5). One end of the sintering tube (4) passes through the side walls of the first furnace body (21) and the second furnace body (22) and is connected to a rotary drive mechanism (3).

2. The atmosphere sintering furnace with built-in oscillation rotation according to claim 1, characterized in that: A heat radiation cover (6) is installed on one side of the first furnace body (21) and the second furnace body (22). A first heating core (211) is installed between the first furnace body (21) and the heat radiation cover (6), and a second heating core (221) is installed between the second furnace body (22) and the heat radiation cover (6).

3. The atmosphere sintering furnace with built-in oscillation rotation according to claim 2, characterized in that: The sintering tube (4) is rotatably installed between the two end heat radiation shields (6), and several heat conduction holes (61) are opened on the end face of the two end heat radiation shields (6).

4. The atmosphere sintering furnace with built-in oscillation rotation according to claim 3, characterized in that: The sintered tube (4) includes a hollow tube body (42), one end of which is sealed with a detachable first sealing valve (41), and the other end is sealed with a detachable second sealing valve (43). The second sealing valve (43) is provided with a rotating shaft and a first driven gear (44) is installed on the rotating shaft and driven by the rotating drive mechanism (3).

5. The atmosphere sintering furnace with built-in oscillation rotation according to claim 4, characterized in that: The rotary drive mechanism (3) includes a first drive motor (31), the output end of which is connected to a first drive gear (32), the first drive gear (32) meshes with a first driven gear (44), and the first drive motor (31) is externally connected to a support frame and fixedly connected to the side wall of the first furnace body (21) through the support frame.

6. The atmosphere sintering furnace with built-in oscillation rotation according to claim 4, characterized in that: The first sealing valve (41) includes a vent pipe (411) that is sealed to the pipe body (42) at one end. A pressure gauge (412) and an airtight valve (413) are installed on the other end of the vent pipe (411) away from the pipe body (42). A connection port (414) is provided at the end of the vent pipe (411).

7. The atmosphere sintering furnace with built-in oscillation rotation according to claim 1, characterized in that: The heat treatment mechanism (2) also includes a temperature control box (23) installed at the bottom of the first furnace body (21). A support shaft (231) is fixedly installed on the front and rear end faces of the outer wall of the temperature control box (23). A support groove (111) corresponding to the position of the support shaft (231) is provided on the inner wall end face of the mounting groove (11). The support shaft (231) is rotatably installed in the support groove (111) and a bearing is provided between the support shaft (231) and the support groove (111).

8. The atmosphere sintering furnace with built-in oscillation rotation according to claim 7, characterized in that: A swing gear (24) is fixedly installed on the bottom wall of the temperature control box (23), and the swing drive mechanism (7) is driven and connected to the swing gear (24).

9. A built-in oscillating rotation atmosphere sintering furnace according to claim 8, characterized in that: The oscillation drive mechanism (7) includes a worm (71) disposed in the mounting groove (11) and rotatably connected to the control box (1). The middle section of the worm (71) is provided with a helical tooth (711) that meshes with the oscillating gear (24). One end of the worm (71) passes through the control box (1) and is fixedly connected to a second driven gear (72). A second drive motor (74) is installed on the outer wall of the corresponding end of the control box (1). A second drive gear (73) is installed on the output end of the second drive motor (74). The second drive gear (73) meshes with the second driven gear (72).

10. A built-in oscillating rotation atmosphere sintering furnace according to claim 7, characterized in that: The temperature control box (23) is electrically connected to the first furnace body (21) and the second furnace body (22). The control box (1) is electrically connected to the temperature control box (23). A control panel (12) is also installed on the front end of the control box (1). The control panel (12) is electrically connected to the control box (1), the oscillation drive mechanism (7), and the rotation drive mechanism (3).

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