Sintering furnace smooth in feeding and discharging

Abstract

The utility model belongs to the technical field of sintering furnaces, and particularly relates to a sintering furnace smooth in feeding and discharging, which comprises a furnace body and an air supply structure, a containing cavity is arranged in the furnace body, the containing cavity is provided with a feeding port and a discharging port, the feeding port and the discharging port are respectively arranged at two ends of the furnace body, and both the feeding port and the discharging port are communicated with the containing cavity. The air supply structure comprises an air inlet, an air outlet and an air supply pipeline used for connecting the air inlet and the air outlet, the air outlet communicates with the feeding port, the air inlet is formed in one end of the discharging port, the air supply structure is arranged around the furnace body, and the containing cavity is used for storing to-be-sintered raw materials which enter the containing cavity through the feeding port. The air inlet is connected with an external air supply system, during feeding, air in the air supply system passes through the air inlet, the air supply pipeline, the air outlet and the feeding port and finally enters the containing cavity, and due to the fact that the air outlet supplies air at the same time during feeding, raw materials to be sintered can enter the containing cavity more smoothly according to the Bernoulli principle.

Description

Technical Field

[0001] The utility model belongs to the technical field of sintering furnaces, and in particular relates to a sintering furnace with smooth material inlet and outlet. Background Art

[0002] The sintering process of lithium battery materials is an important process for preparing lithium batteries. At present, roller kilns and pusher kilns are widely used for the sintering of lithium battery materials. The sintering method belongs to static sintering, with uneven temperature, large oxygen consumption, difficult to control sintering temperature, and consumption of ceramic sagger materials. The use of rotary kilns can reduce energy consumption, improve heat transfer efficiency, reduce oxygen consumption and reduce the use of ceramic saggers. The material is discharged quickly, the sintering is stable, and the dynamic heating is fast and uniform. It replaces the traditional static sagger sintering method, so that the material is dynamically tumbled and heated, ensuring the uniformity and stability of heating, and overcoming the defects of overburning and undercooking caused by static sintering of materials. However, the existing rotary sintering kiln is difficult to discharge and the discharge is not thorough. Utility Model Content

[0003] The purpose of the utility model is to design a new sintering furnace with smooth feeding and discharging in view of the defects of the prior art, so as to solve the technical problems of the existing sintering furnace with unsmooth feeding and incomplete discharging.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A sintering furnace with smooth material inlet and outlet, comprising a furnace body and an air supply structure, wherein the furnace body is provided with a accommodating cavity, the accommodating cavity is provided with a feed port and a discharge port, the feed port and the discharge port are respectively arranged at two ends of the furnace body, and the feed port and the discharge port are both connected with the accommodating cavity, the air supply structure comprises an air inlet, an air outlet and an air supply pipeline for connecting the air inlet and the air outlet, the air outlet is connected with the feed port, the air inlet is arranged at one end of the discharge port, and the air supply structure is arranged around the furnace body.

[0006] Furthermore, the feed port is provided with a connecting valve, a feed part is provided on the connecting valve, the feed part has a feed cavity, the feed cavity is wide at the top and narrow at the bottom and is connected to the connecting valve, the connecting valve also has a branch pipeline, one end of the branch pipeline is connected to the connecting valve, and the other end of the branch pipeline is connected to the air outlet.

[0007] Furthermore, the branch pipeline is arranged between the feed port and the feed part;

[0008] Alternatively, the branch pipeline is arranged on a side of the feed portion away from the feed port.

[0009] Furthermore, a cooling part is provided between the air inlet and the air supply duct, and a cooling cavity is provided in the cooling part. The cooling cavity is respectively connected with the air inlet and the air supply duct, and the cooling part has at least two through holes. The air supply duct passes through the cooling part through the through holes, and a part of the air supply duct is placed in the cooling part.

[0010] Furthermore, it also includes a base, on which at least two support rods are arranged, one end of the two support rods is fixedly connected to the base, and the other end of the support rod is provided with a rotating member, and the rotating member is movably connected to the feed port and the discharge port respectively, and a driving member is arranged on the lower side of the base, and the driving member is transmission-connected to the rotating member, and the furnace body is driven to rotate through the driving member.

[0011] Furthermore, a first supporting structure and a second supporting structure are also provided at the bottom of the base, and the first supporting structure and the second supporting structure are respectively provided corresponding to the feed port and the discharge port.

[0012] Furthermore, the first support structure and the second support structure both include a support base, the base is flip-connected to the second support structure, and the first support structure also includes a lifting member, one end of the lifting member is rotatably connected to the support seat, and the other end of the lifting member is rotatably connected to the bottom of the base.

[0013] Furthermore, the furnace body is covered with an outer shell, and a heating element is arranged between the outer shell and the furnace body.

[0014] Furthermore, the discharge port is provided with a discharge pipeline, one end of the discharge pipeline is connected to the discharge port, the other end of the discharge pipeline is provided with a storage box, and the discharge pipeline is communicated with the storage box.

[0015] Furthermore, the material storage box is hung on one side of the base, and the head of the material storage box is movably connected to the base.

[0016] The beneficial effect of the utility model is that the utility model provides a sintering furnace with smooth material inlet and outlet, comprising a furnace body and an air supply structure, wherein the furnace body is provided with a accommodating cavity, the accommodating cavity is provided with a feed port and a discharge port, the feed port and the discharge port are respectively arranged at two ends of the furnace body, and the feed port and the discharge port are both connected to the accommodating cavity, the air supply structure comprises an air inlet, an air outlet and an air supply pipeline for connecting the air inlet and the air outlet, the air outlet is connected to the feed port, and the discharge port is connected to the feed port. The air inlet is connected to the receiving cavity, the air inlet is arranged at one end of the discharging port, the air supply structure is arranged around the furnace body, the receiving cavity is used to store the raw material to be sintered, the raw material to be sintered enters the receiving cavity through the feeding port, the air inlet is connected to the external air supply system, when adding material, the wind in the air supply system passes through the air inlet, the air supply pipeline, the air outlet and the feeding port, and finally enters the receiving cavity. When adding material, the air outlet supplies air at the same time, so that the raw material to be sintered can enter the receiving cavity more smoothly through the Bernoulli principle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following will refer to the attached Figure 1-2 To describe the features, advantages and technical effects of exemplary embodiments of the present utility model.

[0018] Figure 1 It is a schematic diagram of the conventional state of the sintering furnace in the utility model;

[0019] Figure 2 It is a schematic diagram of the discharging state of the sintering furnace in the utility model.

[0020] In the figure: 1. furnace body; 2. air supply structure; 3. base;

[0021] 11. Accommodating chamber; 12. Feed inlet; 13. Discharge outlet; 14. Connecting valve; 15. Housing; 16. Heating element; 17. Discharge pipeline; 18. Storage box;

[0022] 21. Air inlet; 22. Air outlet; 23. Air supply pipeline; 24. Cooling unit;

[0023] 31. Support rod; 32. Driving member; 33. First supporting structure; 34. Second supporting structure; 35. Support seat;

[0024] 141. Feeding part; 142. Branch pipeline; 241. Cooling chamber; 242. Through hole; 311. Rotating part; 341. Lifting part. DETAILED DESCRIPTION

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0026] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0027] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0028] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and multiple situations exist alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0029] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0030] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0031] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0032] The following is combined with Figure 1-2 The utility model is further described in detail, but it is not intended to limit the utility model.

[0033] like Figure 1 A sintering furnace with smooth material inlet and outlet is shown, comprising a furnace body 1 and an air supply structure 2. The furnace body 1 has a accommodating cavity 11, and the accommodating cavity 11 is provided with a feed port 12 and a discharge port 13. The feed port 12 and the discharge port 13 are respectively arranged at two ends of the furnace body 1, and the feed port 12 and the discharge port 13 are both connected with the accommodating cavity 11. The air supply structure 2 comprises an air inlet 21, an air outlet 22 and an air supply pipeline 23 for connecting the air inlet 21 and the air outlet 22. The air outlet 22 is connected with the feed port 12, and the air inlet 21 is arranged at one end of the discharge port 13. The air supply structure 2 is arranged around the furnace body 1.

[0034] Specifically, the accommodating chamber 11 is used to store the raw materials to be sintered. The raw materials to be sintered enter the accommodating chamber 11 through the feed port 12. The air inlet 21 is connected to the external air supply system. When adding materials, the air in the air supply system passes through the air inlet 21, the air supply pipeline 23, the air outlet 22 and the feed port 12, and finally enters the accommodating chamber 11. Since the air outlet 22 supplies air at the same time when adding materials, the raw materials to be sintered can enter the accommodating chamber 11 more smoothly through the Bernoulli principle.

[0035] In some embodiments, the feed port 12 is provided with a connecting valve 14, and a feed part 141 is provided on the connecting valve 14. The feed part 141 has a feed cavity, which is wide at the top and narrow at the bottom and is connected to the connecting valve 14. The connecting valve 14 also has a branch pipeline 142, one end of the branch pipeline 142 is connected to the connecting valve 14, and the other end of the branch pipeline 142 is connected to the air outlet 22.

[0036] Specifically, a connecting valve 14 is provided at the feed port 12 to facilitate fixing of the air outlet 22 and feeding, and the feed cavity is wide at the top and narrow at the bottom so that the raw materials to be sintered are not easy to fall out of the feed cavity when feeding.

[0037] In some embodiments, the branch pipeline 142 is disposed between the feed port 12 and the feed portion 141;

[0038] Alternatively, the branch pipeline 142 is disposed on a side of the feed portion 141 away from the feed port 12 .

[0039] Specifically, in this embodiment, the branch pipeline 142 is arranged between the feed port 12 and the feed part 141. When feeding, the air outlet 22 directly conveys air into the accommodating chamber 11. The raw materials to be sintered in the feed part 141 fall into the branch pipeline 142 through the feed cavity. The air outlet 22 blows air into the accommodating chamber 11. The Bernoulli principle makes the feed cavity have suction, so that the raw materials to be sintered are sucked into the accommodating chamber 11, thereby improving the smoothness of feeding.

[0040] In another embodiment, the branch pipeline 142 is arranged on the side of the feed part 141 away from the feed port 12. When adding materials, the raw materials to be sintered fall into the connecting valve 14 through the feed cavity, and then the air outlet 22 blows the raw materials to be sintered into the accommodating cavity 11. This embodiment can be used to feed large quantities of raw materials, but it will generate a lot of dust.

[0041] In some embodiments, a cooling portion 24 is provided between the air inlet 21 and the air supply duct 23, and a cooling cavity 241 is provided in the cooling portion 24. The cooling cavity 241 is respectively connected to the air inlet 21 and the air supply duct 23. The cooling portion 24 has at least two through holes 242. The discharge pipeline 17 passes through the cooling portion 24 through the through holes 242, and a portion of the air supply duct 23 is placed in the cooling portion 24.

[0042] Specifically, when the raw materials to be sintered are fused in the containing chamber 11, the raw materials will generate heat due to the movement of molecules. When the raw materials are discharged, the fused raw materials with heat are placed in the storage box 18 through the discharge port 13 and the discharge pipeline 17. When the raw materials enter the discharge pipeline 17, the external air supply system delivers cold air to the cooling chamber 241 through the air inlet 21. The cold air cools the discharge pipeline 17 placed in the cooling chamber 241, and cools the raw materials at the same time.

[0043] The cold air in the cooling chamber 241 takes away the heat of the raw materials to form hot air, and the hot air enters the containing chamber 11 through the air supply pipeline 23 and the air outlet 22, and at the same time preheats the raw materials of a new round of feeding so that they can be better integrated.

[0044] The connection between the discharge pipeline 17 and the through hole 242 is sealed.

[0045] like Figure 1 and Figure 2As shown, in some embodiments, a base 3 is further included, and at least two support rods 31 are arranged on the base 3, one end of the two support rods 31 is fixedly connected to the base 3, and a rotating member 311 is arranged at the other end of the support rod 31, and the rotating member 311 is movably connected to the feed port 12 and the discharge port 13 respectively. A driving member 32 is arranged on the lower side of the base 3, and the driving member 32 is transmission-connected to the rotating member 311, and the furnace body 1 is driven to rotate through the driving member 32.

[0046] Specifically, the furnace body 1 is supported by the support rod 31 to prevent the furnace body 1 from contacting the base 3, so as to facilitate driving the furnace body 1 to rotate. The rotating member 311 is used to drive the furnace body 1 to rotate, and the driving member 32 arranged at the bottom of the base 3 is used to drive the rotating member 311 and the furnace body 1 to rotate. When the sintered raw materials are fused, rotating them can improve the quality of the raw material fusion.

[0047] In this embodiment, the driving member 32 is a driving motor.

[0048] In some embodiments, a first supporting structure 33 and a second supporting structure 34 are further provided at the bottom of the base 3 , and the first supporting structure 33 and the second supporting structure 34 are provided corresponding to the feed port 12 and the discharge port 13 , respectively.

[0049] Specifically, the first supporting structure 33 and the second supporting structure 34 place the base 3 and the furnace body 1 on the base 3 at a certain height to facilitate operation by the staff, and the first supporting structure 33 and the second supporting structure 34 are arranged corresponding to the feed port 12 and the discharge port 13 to better support them and prevent the furnace body 1 from falling due to changes in the center of gravity.

[0050] In some embodiments, the first support structure 33 and the second support structure 34 both include a support seat 35, the base 3 is flipped and connected to the second support structure 34, and the first support structure 33 also includes a lifting member 341, one end of the lifting member 341 is rotatably connected to the support seat 35, and the other end of the lifting member 341 is rotatably connected to the bottom of the base 3.

[0051] Specifically, the bottom of the support seat 35 is in contact with the ground, and the support seat 35 plays a supporting role for the furnace body 1 and the base 3, and the first support structure 33 can control the lifting member 341 to lift the base 3 and the furnace body 1. Since the second support structure 34 is flip-connected to the base 3, the base 3 and the furnace body 1 are flipped with the connection between the second support structure 34 and the base 3 as the origin during lifting, so that the height of the feed port 12 is higher than the discharge port 13, which is more convenient for discharging. The lifting member 341 is movably connected to the support seat 35 and the base 3 respectively, which can prevent the change of angle during lifting from interfering with the lifting member 341 and causing damage to the lifting member 341. When discharging, the bottom plate and the furnace body 1 are lifted by the first support structure 33, so that the furnace body 1 has a certain angle with the ground, and then the air is discharged through the air outlet 22, so that the discharge is faster and cleaner without leaving any residual residue.

[0052] In some embodiments, the furnace body 1 is covered with an outer shell 15 , and a heating element 16 is disposed between the outer shell 15 and the furnace body 1 .

[0053] Specifically, the heating element 16 is used to heat the furnace body 1 and heat the raw materials to be sintered in the accommodating cavity 11 to improve the sintering quality and speed of the raw materials to be sintered. At the same time, the outer shell 15 outside the furnace body 1 plays a heat insulating role to prevent the heat of the furnace body 1 from escaping.

[0054] In some embodiments, the discharge port 13 is provided with a discharge pipeline 17 , one end of the discharge pipeline 17 is connected to the discharge port 13 , and the other end of the discharge pipeline 17 is provided with a storage box 18 .

[0055] Specifically, in the present embodiment, the discharge pipeline 17 is a hose. When discharging, since the first supporting structure 33 needs to lift one end of the furnace body 1 so that it has a certain angle to facilitate discharging, the discharge pipeline 17 is made of a hose material so that the discharge pipeline 17 can better adapt to the working state and prevent the discharge pipeline 17 from breaking. From the above, it can be seen that a part of the discharge pipeline 17 is placed in the cooling part 24. When the fused raw material to be sintered passes through the discharge pipeline 17, the sintered raw material is cooled by the cooling part 24.

[0056] In some embodiments, the material storage box 18 is suspended on one side of the base 3 , and the head of the material storage box is movably connected to the base 3 .

[0057] Specifically, the head of the material storage box 18 is movably connected to the base 3, so that the material discharging box can swing at will. When discharging, the lifting member 331 lifts the base 3 so that the base 3 reaches a certain inclination angle. When the base 3 is tilted, the material storage box 18 always remains vertical to the ground, so that the raw materials can fall into the material storage box 18 better.

[0058] The specific working principle of the present application is as follows: first, the external air supply system conveys air from the air inlet 21, the air supply pipeline 23 and the air outlet 22 to the accommodating chamber 11. As the air circulates, suction is formed in the connecting valve 14 and the feeding chamber through the Bernoulli principle. Then, the raw material to be sintered is added to the feeding part 141, and the raw material to be sintered is sucked into the accommodating chamber 11. At this time, the air supply is stopped, the heating element 16 heats the furnace body 1, and the driving element 32 starts to drive the rotating element 311 and the furnace body 1 to rotate. After the sintered raw materials are completely fused, the first supporting structure 33 lifts the base 3 to an angle, and the external air supply system starts to convey air to the accommodating chamber 11. The air in the accommodating chamber 11 enters the storage box 18 through the discharge port 13 and the discharge pipeline 17, and at the same time drives the sintered raw material in the accommodating chamber 11 to flow out of the discharge port 13. When passing through the discharge pipeline 17, the raw material is cooled by the cooling part 24, and finally placed in the storage box 18. The external air supply system stops working and the sintering work is completed. When new sintering is required, just repeat the above steps.

[0059] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0060] According to the disclosure and teaching of the above description, the technicians in the field of the utility model can also change and modify the above implementation. Therefore, the utility model is not limited to the above specific implementation, and any obvious improvement, replacement or modification made by the technicians in this field on the basis of the utility model belongs to the protection scope of the utility model. In addition, although some specific terms are used in this specification, these terms are only for the convenience of explanation and do not constitute any limitation to the utility model.

Claims

1. A sintering furnace with smooth material inlet and outlet, characterized in that: It includes a furnace body and an air supply structure, the furnace body has a accommodating cavity, the accommodating cavity is provided with a feed port and a discharge port, the feed port and the discharge port are respectively arranged at two ends of the furnace body, and the feed port and the discharge port are communicated with the accommodating cavity, the air supply structure includes an air inlet, an air outlet and an air supply pipeline for connecting the air inlet and the air outlet, the air outlet is communicated with the feed port, the air inlet is arranged at one end of the discharge port, and the air supply structure is arranged around the furnace body.

2. The sintering furnace with smooth material inlet and outlet according to claim 1, characterized in that: The feed port is provided with a connecting valve, and a feed part is provided on the connecting valve. The feed part has a feed cavity, which is wide at the top and narrow at the bottom and is connected to the connecting valve. The connecting valve also has a branch pipeline, one end of the branch pipeline is connected to the connecting valve, and the other end of the branch pipeline is connected to the air outlet.

3. The sintering furnace with smooth material inlet and outlet according to claim 2, characterized in that: The branch pipeline is arranged between the feed port and the feed part; Alternatively, the branch pipeline is arranged on a side of the feed portion away from the feed port.

4. The sintering furnace with smooth material inlet and outlet according to claim 3, characterized in that: A cooling part is provided between the air inlet and the air supply duct, and a cooling cavity is provided in the cooling part. The cooling cavity is communicated with the air inlet and the air supply duct respectively. The cooling part has at least two through holes, and the air supply duct passes through the cooling part through the through holes, and a part of the air supply duct is placed in the cooling part.

5. The sintering furnace with smooth material inlet and outlet according to claim 1, characterized in that: The furnace body is driven to rotate by the driving member, and the furnace body is driven to rotate by the driving member.

6. The sintering furnace with smooth material inlet and outlet according to claim 5, characterized in that: A first supporting structure and a second supporting structure are also provided at the bottom of the base, and the first supporting structure and the second supporting structure are respectively provided corresponding to the feed port and the discharge port.

7. The sintering furnace with smooth material inlet and outlet according to claim 6, characterized in that: The first support structure and the second support structure both include a support seat, the base is flip-connected to the second support structure, and the first support structure also includes a lifting member, one end of the lifting member is rotatably connected to the support seat, and the other end of the lifting member is rotatably connected to the bottom of the base.

8. The sintering furnace with smooth material inlet and outlet according to claim 7, characterized in that: The furnace body is covered with an outer shell, and a heating element is arranged between the outer shell and the furnace body.

9. The sintering furnace with smooth material inlet and outlet according to claim 8, characterized in that: The discharge port is provided with a discharge pipeline, one end of the discharge pipeline is connected to the discharge port, the other end of the discharge pipeline is provided with a storage box, and the discharge pipeline is communicated with the storage box.

10. The sintering furnace with smooth material inlet and outlet according to claim 9, characterized in that: The material storage box is hung on one side of the base, and the head of the material storage box is movably connected to the base.

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