CN219913970U

CN219913970U - Feeding seat, furnace body structure, graphitization furnace and battery production system

Info

Publication number: CN219913970U
Application number: CN202320345446.2U
Authority: CN
Inventors: 熊冬根; 王啟明; 王家政; 申青渊
Original assignee: Ningde Shencheng Technology Co ltd
Current assignee: Ningde Shencheng Technology Co ltd
Priority date: 2023-02-28
Filing date: 2023-02-28
Publication date: 2023-10-27
Anticipated expiration: 2033-02-28

Abstract

The application relates to a feeding seat, a furnace body structure, a graphitization furnace and a battery production system. The pedestal is provided with a feeding cavity and a mounting hole, the mounting hole is communicated with the inside and the outside of the feeding cavity and is positioned at one side of the feeding cavity, and the other opposite side of the feeding cavity is opened. The pan feeding pipe runs through the pedestal, and the discharge end of pan feeding pipe is located the pan feeding intracavity and is configured to towards the central axis opening of mounting hole. According to the technical scheme, when the structural member is penetrated in the mounting hole, the discharge end of the feeding pipe can face the opening of the structural member, and when the feeding pipe feeds, the material discharged from the discharge end flows towards the structural member and reaches the surface of the structural member, the surface of the structural member is wrapped, and the surface of the structural member is isolated from the feeding cavity, so that the probability that the structural member is oxidized by air in the feeding cavity can be reduced, the service life of the structural member is prolonged, and the service life of the furnace body is prolonged.

Description

Feeding seat, furnace body structure, graphitization furnace and battery production system

Technical Field

The application relates to the technical field of heat treatment furnaces, in particular to a feeding seat, a furnace body structure, a graphitization furnace and a battery production system.

Background

The heat treatment furnace is a furnace body structure for providing a treatment environment for materials, and is widely used in various production fields such as graphitization furnaces, smelting furnaces, reaction furnaces, etc., and the heat treatment furnace can generally provide a heating environment.

In the traditional heat treatment furnace, most materials need to be provided with a non-oxidation environment by the furnace body, if the air tightness of the furnace body is poor, air permeates into the furnace, and under the high-temperature environment of the heat treatment furnace, the internal structure of the furnace body is easily oxidized, so that the service life of the furnace body is reduced.

Disclosure of Invention

In view of the above problems, the present utility model provides a feeding seat, a furnace body structure, a graphitization furnace and a battery production system, which can alleviate the problem that the service life of the furnace body is reduced due to the fact that the internal structure of the furnace body is easy to oxidize at high temperature.

In a first aspect, the utility model provides a feeding seat, which comprises a seat body and a feeding pipe. The pedestal is provided with a feeding cavity and a mounting hole, the mounting hole is communicated with the inside and the outside of the feeding cavity and is positioned at one side of the feeding cavity, and the other opposite side of the feeding cavity is opened. The pan feeding pipe runs through the pedestal, and the discharge end of pan feeding pipe is located the pan feeding intracavity and is configured to towards the central axis opening of mounting hole.

According to the technical scheme provided by the embodiment of the utility model, when the structural member is penetrated in the mounting hole, the discharge end of the feeding pipe can face the opening of the structural member, and the feeding pipe feeds, the material discharged from the discharge end flows towards the structural member and reaches the surface of the structural member first, the surface of the structural member is wrapped and attached, and the surface of the structural member is isolated from the feeding cavity, so that the probability that the structural member is oxidized by air in the feeding cavity can be reduced, the service life of the structural member is prolonged, and the service life of the furnace body is prolonged.

In some embodiments, the feed tube is configured with a plurality of projections, all of which are disposed around the projection of the mounting hole, along the central axis of the mounting hole. At this moment, the pan feeding pipe disposes a plurality of, and material feeding efficiency is high, and can carry out the pay-off cladding to the structure of installing in the mounting hole from a plurality of positions, can improve the area of contact of material and structure, and then reduces the area of contact of air and structure, reduces the oxidation degree of structure, helps improving the life of furnace body.

In some embodiments, the feed tube and the mounting hole are disposed on the same side of the housing. At this time, the structure of the feeding seat is more compact.

In some embodiments, the feeding pipe is obliquely arranged relative to the central axis of the mounting hole, and the shortest distance from the central axis of the feeding pipe to the central axis of the mounting hole is gradually decreased from the feeding end to the discharging end of the feeding pipe. The inclined arrangement mode can accelerate the flow of the material in the feeding pipe under the action of dead weight, and is beneficial to improving the feeding speed of the material.

In some embodiments, the central axis of the feeding pipe and the central axis of the mounting hole form an included angle alpha, and the value of alpha is selected from the range of 20 degrees to 30 degrees. At this moment, the material flow velocity in the pan feeding intraductal is faster, and the material that flows from the discharge end possesses great kinetic energy, and the great material of kinetic energy can wash away the volatile material of easy coking, reduces the time that the volatile material stayed on pan feeding seat inner wall and structure surface, and then reduces the coking probability of volatile material.

In some embodiments, the feeding seat further comprises a sealing element, wherein the sealing element is arranged on the seat body and is used for being connected between the seat body and the structural member penetrating through the mounting hole in a sealing mode. At this time, the sealing of the seat body and the structural member is realized by utilizing the sealing member, the sealing is easy to realize, the sealing is reliable, the probability of oxidation of the structural member and the material in the furnace body is reduced, the service life of the furnace body is prolonged, and the quality of the material is improved.

In some embodiments, the seal is disposed at one end of the mounting hole, and the outer contour of the seal projects beyond the projection range of the mounting hole along the central axis of the mounting hole. At this time, the size of the sealing element is set to be larger than the size of the mounting hole, and the sealing element is used for sealing and connecting the seat body with the structural part from the outside of the mounting hole, so that the sealing element is convenient to mount.

In some embodiments, the housing includes a side portion and an end portion, the mounting hole is configured in the end portion, and the side portion is disposed along an outer periphery of the end portion around a central axis of the mounting hole. At this time, the structure of the seat body is simple and easy to process.

In some embodiments, the minimum distance between the bore wall of the mounting bore and the inner wall of the side portion in a direction perpendicular to the central axis of the mounting bore is S1, the side portion has a thickness S2, S2 and S1 satisfying: s1 < S2. In this case, the thickness of the side portion can be increased, which contributes to the strength and high temperature resistance of the seat.

In some embodiments, the seat body includes an outer wall layer, an insulation layer, and a refractory layer, the insulation layer being disposed between the outer wall layer and the refractory layer in isolation, an inner wall of the insulation layer being configured as an inner wall of the feed cavity. At this time, set up flame retardant coating and heat preservation in the outer wall layer inside of pedestal, the high temperature resistance and the heat preservation of pedestal are better, help reducing the pedestal and by the risk of burning loss, still help energy-conserving simultaneously, reduce the energy consumption.

In some embodiments, the outer wall layer, the insulation layer, and the refractory layer are integrally formed. At this time, the pedestal is integrated, can improve the gas tightness of pedestal, and then reduce the probability that the material in structure and the furnace body was oxidized, help improving the life of furnace body, improve the quality of material simultaneously.

In some embodiments, the outer wall layer has a thickness h1, the insulation layer has a thickness h2, the refractory layer has a thickness h3, and both h2 and h3 are greater than h1. The thinner the thickness of outer wall layer, the configuration thickness of insulating layer and flame retardant coating in the pedestal can be higher, and the thicker the thickness of insulating layer and flame retardant coating, the better energy-conserving effect and the high temperature resistant effect of pedestal.

In some embodiments, a recess is concavely formed toward the mounting hole on an end of the feed seat having the open end of the feed cavity, and the recess is used for filling the thermal insulation material. When the feeding seat is mounted on the furnace body, the heat-insulating material is filled in the groove in advance, then one end of the groove of the feeding seat is in butt joint with the furnace body, so that the heat-insulating material is isolated between the furnace body and the feeding seat, the air tightness of the joint of the feeding seat and the furnace body can be enhanced through the heat-insulating material, the image of the temperature of the furnace body borne by the feeding seat can be reduced, and the service life of the feeding seat is prolonged.

In a second aspect, the present application provides a furnace structure, including a furnace, a first electrode, and a feeding seat provided in any of the foregoing embodiments, where the furnace has a receiving opening, the feeding seat covers the receiving opening, an opening of the feeding cavity is disposed towards the opening, and the first electrode is mounted in the mounting hole and partially extends into the feeding cavity.

In some embodiments, the furnace body comprises a movable furnace cover, the furnace cover is provided with the material receiving opening, the material feeding seat is connected with the furnace cover in a matching mode, and a heat insulation material is filled between the material feeding seat and the furnace cover. At this time, the furnace body can be opened or closed through the movement of the furnace cover, so that the materials in the furnace body and the structures in the furnace body can be cleaned and overhauled conveniently. Meanwhile, the furnace cover is a part with relatively low furnace body temperature, and the feeding seat is arranged on the furnace cover, so that the temperature influence of the feeding seat can be improved, and the service life of the feeding seat is prolonged.

In some embodiments, the furnace body has a volatilization channel that communicates with the feed cavity and the exterior of the furnace body. For the material which can generate volatile substances in the treatment, the volatile substances can flow out through the arrangement of the volatile channel, so that the coking degree of the volatile substances in the furnace body is reduced.

In a third aspect, the present application provides a graphitizing furnace comprising the furnace body structure of the above embodiments.

In a fourth aspect, the present application provides a battery production system including the graphitization furnace in the above embodiment.

The foregoing description is only an overview of the present application, and is intended to be implemented in accordance with the teachings of the present application in order that the same may be more clearly understood and to make the same and other objects, features and advantages of the present application more readily apparent.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the application. Also, like reference numerals are used to designate like parts throughout the accompanying drawings. In the drawings:

FIG. 1 is a schematic diagram of a feed block in one or more embodiments;

FIG. 2 is a cross-sectional view of the intake seat shown in FIG. 1 at A-A;

FIG. 3 is a schematic view illustrating assembly of the feeding seat and the structural member shown in FIG. 2;

FIG. 4 is an enlarged view of the portion I of FIG. 2;

fig. 5 is an enlarged view at II in fig. 2;

FIG. 6 is a schematic diagram of the structure of a furnace in one or more embodiments;

FIG. 7 is a schematic view of an assembly of a feed block and a furnace cover in one or more embodiments.

Reference numerals in the specific embodiments are as follows:

100. a furnace body structure; 200. structural members;

10. a furnace body; 11. a furnace cover; J. a material receiving port; H. a volatilization channel;

20. a feeding seat; 21. a base; 21a, side portions; 21b, end; 21c, an outer wall layer; 21d, a heat preservation layer; 21f, a refractory layer; K. a feeding cavity; 22. a mounting hole; 23. a feeding pipe; 23a, a discharge end; 23b, a feeding end; 24. a seal; 25. a groove; 30. a first electrode; 40. a second electrode; 41. a negative electrode annular hole; x, the central axis of the mounting hole; y, reference direction; z, central axis of pan feeding pipe.

Detailed Description

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description of the application and the claims and the description of the drawings above are intended to cover a non-exclusive inclusion.

In the description of embodiments of the present application, the technical terms "first," "second," and the like are used merely to distinguish between different objects and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, a particular order or a primary or secondary relationship. In the description of the embodiments of the present application, the meaning of "plurality" is two or more unless explicitly defined otherwise.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

In the description of the embodiments of the present application, the term "and/or" is merely an association relationship describing an association object, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In addition, the character "/" herein generally indicates that the front and rear associated objects are an "or" relationship.

In the description of the embodiments of the present application, the term "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two), and "plural sheets" means two or more (including two).

In the description of the embodiments of the present application, the orientation or positional relationship indicated by the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationship shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the embodiments of the present application.

In the description of the embodiments of the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured" and the like should be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; or may be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the embodiments of the present application will be understood by those of ordinary skill in the art according to specific circumstances.

Heat treatment furnaces are commonly used to provide a high temperature processing environment. When the furnace body of the heat treatment furnace is poor in air tightness, outside air easily enters the furnace body, and the inner structure of the furnace body (such as an electrode rod in the furnace body) is easily oxidized by combining with a high-temperature environment, so that the service life of the furnace body is reduced.

In order to alleviate the problem of the reduction of the service life of the furnace body caused by the easy oxidation of the internal structure of the furnace body, the internal structure of the furnace body can be subjected to antioxidation treatment. In particular, the isolation of the structure inside the furnace body, which is easily oxidized, from air can be enhanced.

Based on the above consideration, in order to alleviate the problem that the service life of the furnace body is reduced due to the fact that the internal structure of the furnace body is easy to oxidize, the inventor of the present application has conducted intensive studies and designed a feeding seat, the feeding seat is provided with a feeding pipe and a mounting hole, the discharging end of the feeding pipe extends into the feeding cavity of the seat body, and the discharging end of the feeding pipe is opened towards the central axis of the mounting hole. When the structural member is penetrated in the mounting hole, the discharge end of the feeding pipe is arranged towards the structural member, and when the feeding pipe feeds, the material flows towards the structural member and reaches the surface of the structural member, the surface of the structural member is wrapped, the surface of the structural member is isolated from the feeding cavity, so that the probability that the structural member is oxidized by air in the feeding cavity can be reduced, the service life of the structural member is prolonged, and the service life of the furnace body is prolonged.

In some cases, the heat treatment furnace forms a heating electric field by using a positive electrode and a negative electrode which are oppositely arranged, when the material passes through the heating electric field, heat is generated in the material to heat the material, so that the material is heated, and the positive electrode penetrates into the furnace body from the outside of the furnace body. At the moment, the feeding seat provided by the embodiment of the application is applied to the heat treatment furnace of the comparative example, one of the positive electrode and the negative electrode is used as a structural part to be arranged in the mounting hole of the feeding seat in a penetrating way, when the feeding pipe feeds, the material flows towards the electrode and reaches the surface of the electrode first, the surface of the electrode is wrapped, the surface of the electrode is isolated from the feeding cavity, the probability that the electrode is oxidized by air in the feeding cavity can be reduced, the service life of the electrode is prolonged, and the service life of the furnace body is prolonged.

The feeding seat provided by the embodiment of the application is applied to a heat treatment furnace, the heat treatment furnace can be, but not limited to, a graphitization furnace, a smelting furnace, a reaction furnace and the like, and the heating mode of the heat treatment furnace is not limited to the heating mode mentioned in the above situation, and can also be infrared heating, thermal radiation heating and the like. The type of the structural member through which the mounting hole is provided may be a loosening member (for loosening the material), an electrode member, or the like, and is not particularly limited as long as it is a member that penetrates the inside and outside of the heat treatment furnace. Those skilled in the art can flexibly apply the present application to various types of heat treatment furnaces according to the actions and effects of the loading seat in the embodiment of the present application.

The furnace body according to the embodiment of the application can be used as a furnace body of a graphitization furnace, but is not limited to a furnace body of other heat treatment furnaces, such as a smelting furnace. In some embodiments of the present application, the feeding seat provided by the embodiments of the present application is applied to a graphitization furnace. Graphitization furnaces are equipment for producing graphitized powder, which is an important industrial material, and are often used for carburants for ferrous metallurgy, cathode carbon blocks for nonferrous metal electrolytic tanks, prebaked anodes and diamond products, and are often applied to preparation of graphite cathode materials in the field of battery production. In the embodiment of the application, the specific structural form of the graphitizing furnace is not particularly limited, and the feeding seat in the embodiment of the application is used as a feeding structure of the graphitizing furnace.

The battery production system provided by the embodiment of the application is used for preparing graphitized powder by using the graphitizing furnace provided by the embodiment of the application, and can be used for producing lithium batteries, solar batteries, fuel batteries and the like without limitation.

The following describes the feeding seat provided by the embodiment of the application in detail.

Referring to fig. 1 to 3, a feeding seat 20 according to an embodiment of the present application includes a seat body 21 and a feeding tube 23. The seat body 21 is provided with a feeding cavity K and a mounting hole 22, wherein the mounting hole 22 is communicated with the inside and the outside of the feeding cavity K and is positioned at one side of the feeding cavity K, and the other opposite side of the feeding cavity K is opened. The feeding pipe 23 penetrates through the base 21, and a discharge end 23a of the feeding pipe 23 is located in the feeding cavity K and is configured to open toward the central axis X of the mounting hole 22.

The feeding seat 20 is used as a feeding place of the heat treatment furnace, and the material entering the heat treatment furnace passes through the feeding cavity K of the feeding seat 20 and then flows into the furnace body 10, and the feeding seat 20 is arranged at the feeding end 23b of the heat treatment furnace, so that the material can be used as a furnace cover 11 of the heat treatment furnace body 10 or used as a structure for auxiliary feeding on the furnace cover 11, and the use mode of the feeding seat 20 on the heat treatment furnace is not limited.

Since the heat treatment furnace is operated with a high internal temperature, the housing 21 of the feed block 20 is generally made of a high temperature resistant material such as a metal material, a ceramic material, and other heat insulating materials. Typically, the base 21 may be configured to rotate about a predetermined central axis (e.g., the central axis X of the mounting hole 22) or be configured to be symmetrical about a central axis.

The pedestal 21 forms a feeding cavity K, the mounting hole 22 penetrates through the pedestal 21 to be communicated with the inside and the outside of the feeding cavity K, the mounting hole 22 is positioned on one side of the feeding cavity K, and the feeding cavity K is arranged in an open way on the other side of the mounting hole 22. The opening of the feeding cavity K is mainly used for discharging materials in the feeding cavity K into the furnace body 10 of the heat treatment furnace, and meanwhile, the structural member 200 penetrating through the mounting hole 22 can be fed into the furnace body 10. Understandably, the mounting hole 22 is disposed opposite to the opening of the feed chamber K in the direction of the central axis X of the mounting hole K.

The mounting holes 22 are used for the structural member 200 to be pierced (refer to fig. 3), and the structural member 200 may be, but is not limited to, an electrode member in the comparative example. Typically, the central axis of the structural member 200 mounted on the mounting hole 22 is coaxially arranged with the central axis X of the mounting hole 22. The central axis X of the mounting hole 22 refers to a central axis located in the extending direction of the mounting hole 22. For example, when the mounting hole 22 is a cylindrical hole, the center axis X of the mounting hole 22 is the center line of revolution thereof. The number of the mounting holes 22 may be one or even plural, and when the number of the mounting holes 22 is plural, the discharge end 23a is opened toward the center axis X of at least one of the mounting holes 22.

The feeding pipe 23 penetrates through the base 21 from the outside of the base 21 and extends into the feeding cavity K, the feeding end 23b of the feeding pipe 23 is located at the outside of the base 21, and the discharging end 23a of the feeding pipe is located in the feeding cavity K. Typically, the feed tube 23 is formed from a high temperature resistant material such as metal, ceramic, and other high temperature resistant materials. The number of the feed pipes 23 may be one or more, and when there are a plurality of feed pipes 23, each feed pipe 23 may be disposed around the central axis X of the ring mounting hole 22 with its discharge end 23a simultaneously opened toward the central axis X of the mounting hole 22.

The discharge end 23a of the feed pipe 23 is opened toward the central axis X of the mounting hole 22, which means a projection along the central axis X of the mounting hole 22, and the discharge direction of the discharge end 23a intersects with any circle perpendicular to the central axis, i.e., the discharge end 23a discharges toward the central axis. When the structural member 200 is inserted into the mounting hole 22, the discharge end 23a can discharge toward the outer wall surface of the structural member 200.

Above-mentioned pan feeding seat 20, wear to be equipped with structure 200 in mounting hole 22, the discharge end 23a of pan feeding pipe 23 can be towards structure 200 opening, during the feeding of pan feeding pipe 23, the material that discharges from discharge end 23a flows towards structure 200 and reaches structure 200 surface earlier, wraps up in structure 200 surface, keeps apart structure 200 surface and pan feeding chamber K, so can reduce structure 200 by the probability of the interior air oxidation of pan feeding chamber K, improves structure 200's life, and then improves furnace body 10's life.

When the structural member 200 is an electrode of a heat treatment furnace, the electrode surface is coated by materials, so that the contact area between the electrode and air can be reduced, the oxidation degree of the electrode is reduced, and the service lives of the electrode and the furnace body 10 are prolonged.

It should be noted that, the feeding seat 20 serves as a feeding place, a part of air possibly carried along with the material during feeding enters the feeding cavity K, the structural member 200 located in the feeding cavity K is closest to the part of air, the probability of being oxidized by air is high, and meanwhile, the air entering the feeding cavity K through other air leakage parts of the furnace body 10 may oxidize the structural member 200 in the feeding cavity K. At this time, the material of the feeding pipe 23 is used to wrap the structural member 200, so that the contact probability between the air and the structural member 200 located in the feeding cavity K can be effectively reduced.

In some embodiments, referring to fig. 1 to 3, a plurality of feeding pipes 23 are configured, and projections of all the feeding pipes 23 are arranged around the projection of the mounting hole 22 along the central axis X direction of the mounting hole 22.

Typically, the number of mounting holes 22 is one, and projections of a plurality of feed tubes 23 are arranged around the projections of the mounting holes 22. When there are a plurality of mounting holes 22, all the mounting holes 22 are regarded as a whole, and projections of all the feed pipes 23 are arranged around projections of all the mounting holes 22.

At this time, the feeding pipes 23 are arranged in a plurality of ways, so that the feeding efficiency of the materials is high, the structural members 200 installed in the installation holes 22 can be coated in a feeding manner from a plurality of directions, the contact area between the materials and the structural members 200 can be increased, the contact area between air and the structural members 200 can be further reduced, the oxidation degree of the structural members 200 can be reduced, and the service life of the furnace body 10 can be prolonged.

In some embodiments, referring to fig. 1 to 3, the feeding pipe 23 and the mounting hole 22 are disposed on the same side of the base 21.

The feeding pipe 23 and the mounting hole 22 are respectively arranged at the feeding end of the seat body 21, one end of the feeding cavity K where the opening is located is a discharging end 23a of the seat body 21, and the feeding pipe 23 and the mounting hole 22 penetrate through the feeding end of the seat body 21. At this time, the feeding seat 20 is more compact.

In some embodiments, referring to fig. 2 to 3, the feeding pipe 23 is disposed obliquely with respect to the central axis X of the mounting hole 22, and the shortest distance from the central axis Z of the feeding pipe to the central axis X of the mounting hole 22 is gradually decreased from the feeding end 23b to the discharging end 23a of the feeding pipe 23.

The feed end 23b and the discharge end 23a of the feed pipe 23 are arranged opposite to each other in a direction intersecting the central axis X of the mounting hole 22. Regardless of the number of mounting holes 22 provided in one or more, since each mounting hole 22 is generally disposed in parallel, the feed pipe 23 is disposed obliquely with respect to the central axis X of any one of the mounting holes 22.

The feeding end 23b of the feeding pipe 23 is further away from the central axis X of the mounting hole 22 relative to the discharging end 23a, and when the material flows along the feeding end 23b of the feeding pipe 23 to the discharging end 23a, the material gradually approaches the central axis, so that the material can be discharged to the structural member 200 mounted in the mounting hole 22.

By means of the inclined arrangement, the material can flow in the feeding pipe 23 under the action of dead weight, and the feeding speed of the material can be improved.

In other embodiments, the feed tube 23 may also be fed in a direction perpendicular to the central axis X of the mounting hole 22.

In some embodiments, referring to fig. 2, the central axis Z of the feed tube is disposed at an angle α with the central axis X of the mounting hole 22, with the value of α being selected in the range of 20 ° -30 °.

It will be appreciated that the feed tube 23 is disposed obliquely with respect to the central axis X of the mounting hole 22, i.e. indicating that an angle α exists between the central axis Z of the feed tube and the central axis X of the mounting hole 22. The central axis Z of the feed pipe is parallel to the extension direction of the feed pipe 23. Alternatively, the included angle α is selected to be 23 °, 25 ° or 28 °.

Generally, the temperature of the core temperature region of the heat treatment furnace is high, and the material feeding seat 20 is located outside the core temperature region, and after the material is heated in the core temperature region, volatile materials may be generated. When the volatile material enters the inlet seat 20, the volatile material is easily condensed and coked on the inner wall surface of the inlet seat 20 and the outer surface of the structural member 200 due to the low temperature in the inlet seat 20.

In actual use, the central axis X of the mounting hole 22 is disposed along the direction of gravity, i.e., the loading seat 20 is disposed at the top of the heat treatment furnace. When the included angle alpha is selected within the range of 20-30 degrees, the flowing speed of the material in the feeding pipe 23 is high, the material flowing out of the discharging end 23a has high kinetic energy, the material with high kinetic energy can wash out volatile matters easy to coke, the time that the volatile matters stay on the inner wall of the feeding seat 20 and the outer surface of the structural member 200 is reduced, and the coking probability of the volatile matters is further reduced.

Typically, the structural member 200 and the mounting hole 22 are sealed, so that the probability of oxidizing the structural member 200 is reduced due to the external air entering the feeding chamber K. The sealing connection between the structural member 200 and the mounting hole 22 may also be achieved by an interference connection therebetween. Of course, other arrangements for achieving the sealing connection between the structural member 200 and the mounting hole 22 are also possible, and are not limited in the embodiment of the present application.

In some embodiments, referring to fig. 2 to 3, the feeding seat 20 further includes a sealing member 24, where the sealing member 24 is disposed on the seat body 21 and is used for sealing and connecting between the seat body 21 and the structural member 200 penetrating through the mounting hole 22.

The seal 24 may be a seal ring that fits over the structural member 200 and may be disposed within the mounting hole 22. The seal 24 may also be a sealing wool that fills between the structural member 200 and the wall of the mounting hole 22. The seal 24 may also be a sealing weld or a hot melt sealant, filling between the structural member 200 and the seat 21. Of course, the sealing means of the sealing member 24 may be a combination of the above. The manner of arrangement and the specific materials for the seal 24 are not limited in the embodiment of the present application. A sealing material may be provided between the sealing member 24 and the structural member 200 and between the sealing member 24 and the seat body 21.

During the operation of the heat treatment furnace, the feeding seat 20 and the structural member 200 are heated correspondingly to a certain extent, and the sealing member 24 can be made of a temperature-resistant material. For example, plastics such as rubber and silica gel, which are well resistant to temperature, or metals such as carbon steel are not particularly limited.

At this time, the sealing member 24 is used to seal the seat body 21 and the structural member 200, which is easy to be implemented, and reliable in sealing, so as to reduce the probability of oxidation of the structural member 200 and the material in the furnace body 10, improve the service life of the furnace body 10, and improve the quality of the material.

In some embodiments, referring to fig. 2-3, a seal 24 is disposed at one end of the mounting hole 22, along the central axis X of the mounting hole 22, the outer contour of the seal 24 projects beyond the projection range of the mounting hole 22.

Since the outer contour of the seal 24 projects beyond the projection range of the mounting hole 22, it can be seen that the size of the seal 24 is larger than the size of the mounting hole 22. That is, the seal 24 is disposed outside the mounting hole 22, and the seal 24 is provided at one end of the mounting hole 22.

The seal 24 is hermetically connected to the outer wall surface of the housing 21, and specifically, an adhesive layer such as a hot melt adhesive may be provided between the two surfaces of the seal 24 facing the housing 21 to seal the two surfaces, or a solder may be provided between the ring outer wall of the vertically arranged seal 24 and the outer wall surface of the housing 21 to hermetically connect the two surfaces. As for the sealing connection between the sealing member 24 and the structural member 200, the sealing connection may be implemented by adopting an interference connection between the sealing member and the structural member.

At this time, the size of the sealing member 24 is set to be larger than the size of the mounting hole 22, and the sealing member 24 sealingly connects the seat body 21 with the structural member 200 from the outside of the mounting hole 22, facilitating the mounting of the sealing member 24.

In a further embodiment, a thermal insulation material, such as carbon fiber cotton, quartz cotton, etc., may be disposed between the sealing member 24 and the base member 21, so as to reduce the heat transferred from the base member 21 to the sealing member 24 and improve the reliability of the sealing member 24.

In some embodiments, referring to fig. 2 to 3, the base 21 includes a side portion 21a and an end portion 21b, the mounting hole 22 is configured at the end portion 21b, and the side portion 21a is disposed along an outer periphery of the end portion 21b around a central axis X of the mounting hole 22.

The side portion 21a and the end portion 21b may be integrally formed or may be provided separately. The side portion 21a forms a cavity opening at both ends on the central axis X of the mounting hole 22 around the central axis X of the mounting hole 22 along the outer periphery of the end portion 21b, the end portion 21b is closed at one end of the cavity to form a feeding cavity K, and the other end of the cavity serves as an open end of the feeding cavity K.

At this time, the base 21 has a simple structure and is easy to process.

In some embodiments, referring to fig. 4, in a direction perpendicular to the central axis X of the mounting hole 22, a minimum distance between the hole wall of the mounting hole 22 and the inner wall of the side portion 21a is S1, and thicknesses of the side portion 21a are S2, S2 and S1 satisfy: s1 < S2.

It will be understood that, in the direction perpendicular to the central axis X of the mounting hole 22 (referred to as reference direction Y), there are two intersecting points on the mounting hole 22 located in the reference direction Y, and there are two intersecting points on the inner wall of the side portion 21a located in the reference direction Y, and the minimum distance between the hole wall of the mounting hole 22 and the inner wall of the side portion 21a refers to the distance between the intersecting point of the mounting hole 22 located on the central axis X side of the mounting hole 22 in the reference direction Y and the intersecting point of the side portion 21 a.

The thickness direction of the side portion 21a corresponds to the reference direction Y. The distance S1 represents the distance the end portion 21b protrudes inward relative to the inner wall of the side portion 21 a. When S1 < S2, that is, the thickness of the side portion 21a is greater than the protruding distance of the end portion 21b, such that the greater the thickness of the side portion 21a (the smaller the protruding distance of the end portion 21 b), the greater the thickness of the base 21, the better the strength and high temperature resistance of the base 21 when the overall dimension of the base 21 in the reference direction Y is unchanged.

In this case, the thickness of the side portion 21a can be increased, which contributes to the strength and high temperature resistance of the seat 21.

In particular to the embodiment, S2 and S1 satisfy: s1 < 1/3 (S1+S2). That is, the thickness S2 of the side portion 21a is greater than twice the distance S1 that the end portion 21b protrudes inward relative to the inner wall of the side portion 21a, which means that the thickness of the side portion 21a is configured to be greater, the strength and the high temperature resistance of the seat 21 are higher, and the service life of the feeding seat 20 can be improved.

In some embodiments, referring to fig. 2 to 3, the base 21 includes an outer wall layer 21c, an insulating layer 21d and a refractory layer 21f, the insulating layer 21d is separately disposed between the outer wall layer 21c and the refractory layer 21f, and an inner wall of the insulating layer 21d is configured as an inner wall of the feeding cavity K.

The outer wall layer 21c forms a frame of the housing 21 and may be a metal layer (e.g., a carbon steel layer) having high strength and light weight. The heat insulating layer 21d is located between the outer wall layer 21c and the refractory layer 21f, and serves to reduce heat dissipation from the feed chamber K.

The insulating layer 21d is formed of an insulating material, which may be quartz wool, diatomaceous earth, slag wool, expanded perlite, vermiculite, etc., and the specific type of insulating material is not limited and may be selected as is conventional in the art.

The refractory layer 21f forms the inner wall of the feeding cavity K, the temperature contacted by the refractory layer is high, the high-temperature performance requirement is good, the refractory layer 21f is formed by refractory materials, the refractory materials comprise refractory clay bricks, quartz sand, high-alumina bricks, anti-carbon bricks, refractory concrete, silicon carbide products, various refractory fibers and the like, the specific type of the thermal insulation materials is not limited, and the conventional components in the field can be selected.

At this time, the refractory layer 21f and the heat-insulating layer 21d are disposed inside the outer wall layer 21c of the seat body 21, so that the seat body 21 has better high-temperature resistance and heat-insulating performance, which is beneficial to reducing the risk of burning the seat body 21, and is beneficial to saving energy and reducing energy consumption.

In some embodiments, the outer wall layer 21c, the insulation layer 21d, and the refractory layer 21f are integrally formed. The molding mode can be die casting molding. At this time, the seat body 21 is integrated, so that the air tightness of the seat body 21 can be improved, the probability of oxidation of the material in the structural member 200 and the furnace body 10 is reduced, the service life of the furnace body 10 is prolonged, and the quality of the material is improved.

In some embodiments, referring to fig. 5, the thickness of the outer wall layer 21c is h1, the thickness of the insulating layer 21d is h2, the thickness of the refractory layer 21f is h3, and both h2 and h3 are greater than h1.

It is understood that the thinner the thickness of the outer wall layer 21c is, the higher the arrangement thickness of the heat insulating layer 21d and the refractory layer 21f in the housing 21 can be, and the thicker the thickness of the heat insulating layer 21d and the refractory layer 21f is, the better the energy saving effect and the high temperature resistant effect of the housing 21 are. Of course, the thickness of the outer wall layer 21c should meet the requirement of supporting strength of the heat insulating layer 21d and the refractory layer 21f, and the requirement of external impact resistance, etc., so as to ensure the structural strength of the feeding seat 20 itself.

The thicknesses of the insulating layer 21d, the refractory layer 21f, and the outer wall layer 21c are the dimensions in the above-described reference direction Y, and can be understood with reference to fig. 1.

In some embodiments, the thickness h3 of the refractory layer 21f is selected to be 50mm to 60mm, the thickness h2 of the insulating layer 21d is selected to be 50mm to 80mm, and the thickness h1 of the outer wall layer 21c is selected to be 10mm to 20mm. At this time, the strength, energy-saving performance and high temperature resistance of the seat body 21 all reach a high level, and the space occupation rate of the seat body 21 is small.

Generally, the thicknesses of the refractory layer 21f, the insulating layer 21d, and the outer wall layer 21c are uniformly arranged throughout. When the thickness of any one of the three is unevenly distributed, the thickness of each layer may be ensured within the above range.

In some embodiments, referring to fig. 2 to 3, a recess 25 is concavely formed on an open end of the feeding seat 20 toward the mounting hole 22, and the recess 25 is used for filling the insulation material.

The shape of the insulation material may be described in the above embodiments, and the insulation material filled in the grooves 25 may be flocculent, fibrous, brick-shaped, etc. which will not be described herein. The groove 25 may or may not be in communication with the feed chamber K. The recess 25 may be annular around the central axis X of the mounting hole 22, and may be provided in plural numbers spaced around the central axis X of the mounting hole 22. Typically, the recess direction of the groove 25 is disposed substantially parallel to the central axis X of the mounting hole 22. The specific arrangement of the grooves 25 is not limited in the embodiment of the present application.

When the feeding seat 20 is mounted on the furnace body 10, the heat insulation material is filled in the groove 25 in advance, and then one end of the groove 25 of the feeding seat 20 is in butt joint with the furnace body 10, so that the heat insulation material is isolated between the furnace body 10 and the feeding seat 20, the air tightness of the joint of the feeding seat 20 and the furnace body 10 can be enhanced through the heat insulation material, the image of the temperature of the furnace body 10 borne by the feeding seat 20 can be reduced, and the service life of the feeding seat 20 is prolonged.

In an embodiment of the present application, the feeding seat 20 includes a seat body 21 and a feeding tube 23. The seat body 21 encloses and closes and to be formed with pan feeding chamber K, link up on the seat body 21 and be provided with mounting hole 22, and mounting hole 22 is located pan feeding chamber K's one side, and pan feeding chamber K's opposite side is open to be set up. The feeding pipe 23 penetrates through the base 21, and a discharge end 23a of the feeding pipe 23 is located in the feeding cavity K and is configured to open toward the central axis X of the mounting hole 22. The feed pipe 23 is provided in plurality, and projections of the feed pipes 23 are arranged around projections of the mounting hole 22 in the direction of the central axis X of the mounting hole 22. The feeding pipe 23 is arranged obliquely relative to the central axis X of the mounting hole 22, and the shortest distance from the central axis Z of the feeding pipe to the central axis X of the mounting hole 22 is arranged progressively decreasing from the feeding end 23b to the discharging end 23a of the feeding pipe 23. The central axis Z of the feeding pipe and the central axis X of the mounting hole 22 form an included angle alpha, and the value of alpha is selected from 20 degrees to 30 degrees.

In addition, referring to fig. 6, the embodiment of the application further provides a furnace body structure 100, which includes a furnace body 10, a first electrode 30, and the feeding seat 20 provided in any of the foregoing embodiments, wherein the furnace body 10 has a receiving opening J, the feeding seat 20 is covered on the receiving opening J, an opening of the feeding cavity K is disposed towards the opening, and the first electrode 30 is mounted in the mounting hole 22 and partially extends into the feeding cavity K.

The furnace body 10 is a structure forming a core temperature region of the heat treatment furnace, which provides an internal environment for heat treatment of materials. Typically, the processing environment provided by the furnace 10 is isolated from the atmosphere, and may be a vacuum environment, an atmosphere (such as nitrogen atmosphere, inert gas atmosphere, reducing atmosphere), etc., which are specifically set according to the processing requirements. Generally, the furnace body 10 includes a furnace shell, which is typically made of a metallic material, is strong and lightweight. The heat preservation and insulation structure can be arranged in the furnace shell, so that the heat dissipation in the furnace body 10 can be reduced, the surface temperature of the furnace shell is lower, and the energy conservation and the scalding risk can be reduced.

The first electrode 30 is externally connected with a power supply, can be positively charged or negatively charged, and can be made of conductive materials. When the polarities of the first electrodes 30 are different, a material having a corresponding polarity may be selected. For example, the positive electrode may be made of a positive electrode material such as graphite or copper, and the negative electrode may be made of a negative electrode material such as graphite or aluminum. The materials for the positive electrode and the negative electrode may be selected as usual in the art, and are not limited herein.

The feeding seat 20 and the furnace body 10 can be integrally formed or can be arranged separately. When the split type device is arranged, the split type device and the split type device can be connected in a clamping connection, a fastening connection and other modes. The feeding seat 20 can be installed at the position of the receiving opening J in an interference manner, the opening of the feeding cavity K is communicated with the receiving opening J, and materials in the feeding cavity K enter the furnace body 10 through the opening and the receiving opening J.

The first electrode 30 is installed in the installation hole 22, and the part stretches into the feeding cavity K, and meanwhile, the first electrode 30 can also penetrate through the opening of the feeding cavity K and stretch into the furnace body 10.

The furnace body structure 100 has all the technical features and advantages of the above embodiments, and is not described herein in detail, because it has the above feeding seat 20.

Further in the embodiment, referring to fig. 6 and 7, the furnace body 10 includes a movable furnace cover 11, the furnace cover 11 has the receiving opening J, the feeding seat 20 is coupled to the furnace cover 11, and a thermal insulation material is filled between the feeding seat 20 and the furnace cover 11.

The furnace body 10 includes a furnace cover 11 and a furnace body (not shown), the furnace cover 11 and the furnace body are usually movably connected, and the furnace body is opened or closed by the movement of the furnace cover 11, so as to facilitate cleaning, maintenance and the like of materials in the furnace body and structures in the furnace body. The furnace body has a core temperature region of the furnace body 10, mainly forming an internal environment of the furnace body 10. The movable connection mode of the furnace cover 11 and the furnace body may be that the furnace cover 11 is rotatable relative to the furnace body, or that the furnace cover 11 is linearly movable relative to the furnace body, or that the furnace cover 11 is detachable relative to the furnace body.

The furnace cover 11 is matched with the feeding seat 20, namely, the furnace cover and the feeding seat are not integrally connected. The furnace cover 11 and the feeding seat 20 can be connected in a clamping, fastening, screw connection, etc., and the method is not particularly limited. Of course, in other embodiments, the cover 11 and the seat 20 may be integrally formed.

At this time, the furnace body can be opened or closed by the movement of the furnace cover 11, so that the materials in the furnace body and the structures in the furnace body can be cleaned and overhauled conveniently. Meanwhile, the furnace cover 11 is a relatively low temperature part of the furnace body 10, and the feeding seat 20 is arranged on the furnace cover 11, so that the temperature influence of the feeding seat 20 can be improved, and the service life of the feeding seat 20 is prolonged.

In actual operation, referring to fig. 6 and 7, the feeding seat 20 is in butt joint with the furnace cover 11 of the furnace body 10, and the heat insulation material is arranged in the groove 25 and is positioned between the furnace cover 11 and the feeding seat 20.

In some embodiments, referring to fig. 6, the furnace body 10 has a volatilization channel H that communicates with the feed cavity K and the outside of the furnace body 10. The volatilization channel H may be a straight channel, a curved channel, or the like, and is not limited. Typically, the volatilization channel H is disposed above the furnace body 10, so as to facilitate the extraction of the light floating volatile substances.

For materials that produce volatile materials (e.g., graphitized carbonaceous materials), the volatile channels H are configured to allow the volatile materials to flow out, reducing the extent of coking of the volatile materials within the furnace 10.

In general, the volatilizing channel H is externally communicated with the tail gas treatment system and is used for treating volatile substances flowing out of the volatilizing channel H and then evacuating the volatile substances, so that the pollution to the atmosphere is reduced. As for the specific arrangement of the exhaust gas treatment system, there is no limitation in the embodiment of the present application, and those skilled in the art can perform conventional arrangements.

In some embodiments, referring to fig. 6, the furnace structure 100 further includes a second electrode 40, where the second electrode 40 is located in the furnace 10 and opposite to and spaced apart from the first electrode 30, the first electrode 30 is a positive electrode, the second electrode 40 is a negative electrode, and the second electrode 40 has a negative electrode annular hole 41 located in the material flow path.

The first electrode 30 and the second electrode 40 are disposed opposite to each other, and the first electrode 30 is a positive electrode and the second electrode 40 is a negative electrode. When both are energized, an electric field region can be formed between the two. Since the second electrode 40 has an annular hole, that is, the second electrode 40 is generally in a shape of a ring, the first electrode 30 is generally in a rod shape, and an inverted cone-shaped electric field can be generated between the two electrodes, when the material passes through the electric field region, the material can generate heat under the effect of self resistance, heating of the material can be realized, and the material can flow to the discharge end of the furnace body 10 through the annular hole of the second electrode 40. The second electrode 40 is designed in the shape of a ring, and its negative electrode ring hole 41 can pass through the material to be heated until reaching the discharge side of the furnace body 10.

At this time, the furnace structure 100 may be adapted to a heat treatment process in which the material is a conductor, such as graphitization of the carbonaceous material.

In addition, a graphitization furnace is provided in the embodiment of the present application, which includes the furnace body structure 100 in the above embodiment. The graphitizing furnace has all the technical features and advantageous effects of the above embodiments, and are not described herein.

In addition, the embodiment of the application also provides a battery production system which comprises the graphitization furnace. Graphitization furnaces are used in battery production systems and may be used, but are not limited to, to produce negative electrode materials for batteries.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of protection of the present application is to be determined by the appended claims.

Claims

1. A pan feeding seat, characterized in that, the pan feeding seat includes:

the seat body is provided with a feeding cavity and a mounting hole, the mounting hole is communicated with the inside and the outside of the feeding cavity and is positioned at one side of the feeding cavity, and the other opposite side of the feeding cavity is opened;

the feeding pipe penetrates through the base body, and the discharging end of the feeding pipe is located in the feeding cavity and is configured to face the central axis opening of the mounting hole.

2. The feeding seat according to claim 1, wherein the feeding pipe is provided in plurality, and projections of all the feeding pipes are arranged around projections of the mounting holes along the central axis direction of the mounting holes.

3. The feed shoe of claim 1, wherein the feed tube is disposed on the same side of the shoe as the mounting hole.

4. The feeding seat according to claim 1, wherein the feeding pipe is arranged obliquely relative to the central axis of the mounting hole, and the shortest distance from the central axis of the feeding pipe to the central axis of the mounting hole is arranged progressively decreasing from the feeding end of the feeding pipe to the discharging end.

5. The feeding seat according to claim 4, wherein the central axis of the feeding pipe and the central axis of the mounting hole form an included angle alpha, and the value of alpha is selected from the range of 20 degrees to 30 degrees.

6. The feeding seat of any one of claims 1-5, further comprising a sealing member disposed on the seat body and adapted for sealing connection between the seat body and a structural member passing through the mounting hole.

7. The feed shoe of claim 6, wherein the seal is disposed at one end of the mounting hole; along the central axis of the mounting hole, the projection of the outer contour of the sealing element exceeds the projection range of the mounting hole.

8. The feed shoe of any one of claims 1-5, wherein the housing comprises a side portion and an end portion, the mounting hole being configured in the end portion, the side portion being disposed along an outer periphery of the end portion about a central axis of the mounting hole.

9. The feed shoe of claim 8, wherein a minimum distance between a wall of the mounting hole and an inner wall of the side portion in a direction perpendicular to a central axis of the mounting hole is S1, a thickness of the side portion is S2, and the S2 and S1 satisfy: s1 < S2.

10. The feeding seat of any one of claims 1-5, wherein the seat body comprises an outer wall layer, an insulation layer and a refractory layer, the insulation layer is arranged between the outer wall layer and the refractory layer in a separated manner, and an inner wall of the insulation layer is configured as an inner wall of the feeding cavity.

11. The feed shoe of claim 10, wherein the outer wall layer, the insulation layer, and the refractory layer are integrally formed.

12. The feed seat of claim 11, wherein the thickness of the outer wall layer is h1, the thickness of the insulating layer is h2, the thickness of the refractory layer is h3, and both h2 and h3 are greater than h1.

13. The feeding seat according to any one of claims 1 to 5, wherein a groove is concavely formed toward the mounting hole at an end of the feeding seat having the opening of the feeding chamber, and the groove is used for filling heat insulation material.

14. A furnace structure, comprising:

the furnace body is provided with a material receiving opening;

a first electrode;

the feeding seat according to any one of claims 1-13, wherein the feeding seat covers the receiving opening, the opening of the feeding cavity is arranged towards the receiving opening, and the first electrode is mounted in the mounting hole and partially extends into the feeding cavity.

15. The furnace structure according to claim 14, wherein the furnace comprises a movable furnace cover having the receiving opening, the charging seat being coupled to the furnace cover.

16. The furnace structure according to claim 14, wherein the furnace has a volatilization channel communicating the feed cavity and the outside of the furnace.

17. A graphitization furnace comprising a furnace body structure according to any one of claims 14-16.

18. A battery production system comprising the graphitization furnace of claim 17.