CN220454229U - Furnace tube and rotary furnace - Google Patents

Abstract

The application discloses a furnace tube and a rotary furnace, the furnace tube comprises a plurality of inner walls, the inner walls are planar structures, and a plurality of inner walls enclose a channel configured as a prismatic structure. By setting the inner wall of the furnace tube as a plane structure, so that the material can be spread on the inner wall of the furnace tube, the situation that the materials are unevenly stacked in the furnace tube is avoided, so that the materials in the furnace tube are heated uniformly.

Description

Furnace tube and rotary furnace

Technical Field

The application belongs to the field of material processing, and particularly relates to a furnace tube and a rotary furnace.

Background

In the manufacture of parts, it is often necessary to treat some of the powder. For example, the positive and negative materials of some batteries, are made to require different devices, and gradually processing according to the process sequence. Therein is provided with in some of these processes, the powder is required to be manufactured and processed. In the powder manufacturing process, the materials are subjected to chemical reaction in the sintering stage, and a rotary furnace is often used for processing the materials. The furnace tube part in the rotary furnace is a main execution part for processing materials, and the materials are subjected to treatments such as rotation and heating in the furnace tube part.

However, in the prior art, uneven heating of the material often occurs in the furnace tube portion of the rotary kiln.

Disclosure of Invention

The utility model provides a boiler tube and rotary furnace can solve the boiler tube part of rotary furnace and take place the inhomogeneous problem of material heating.

In order to solve the technical problems, one technical scheme adopted by the application is as follows: a furnace tube is provided, wherein the furnace tube comprises a plurality of inner walls, the inner walls are of a plane structure, a channel is formed by surrounding the inner walls, and the channel is configured into a prismatic structure.

Through setting the inner wall of boiler tube to planar structure for the material can be tiled on the inner wall of boiler tube, avoids the material to pile up thick, the uneven condition of thinness in the boiler tube, thereby makes the material in the boiler tube obtain even being heated.

In some embodiments, the furnace tube comprises a plurality of furnace tube plates, at least one side surface of the plurality of furnace tube plates is a plane, so as to serve as an inner wall of the furnace tube, and the plurality of furnace tube plates are sequentially spliced and connected and are configured into a tubular structure.

The mode of splicing the plurality of furnace tube plates can ensure that the inner wall of the furnace tube is a plurality of planes and is easy to process.

In some embodiments, guide plates are arranged on the inner wall at intervals, the guide plates are obliquely arranged relative to the length direction of the furnace tube, and adjacent guide plates on the inner wall are mutually matched to form a spiral structure.

The guide plate also adopts a spliced structure, forms a spiral shape in the furnace tube, controls the moving distance of the material through the rotating speed of the furnace tube, and is easy to process.

In some embodiments, the inner wall is further provided with a shoveling plate, the shoveling plate is disposed between adjacent guide plates of the same furnace tube plate, and is disposed obliquely with respect to the guide plates, and the shoveling plates are disposed at a certain interval.

The shoveling plate is arranged to push the material to move forward and to turn the material.

In some embodiments, one end of the channel is a feed inlet, the other end is a discharge outlet, one end of the guide plate is close to the feed inlet, and the other end is close to the discharge outlet.

The way can ensure that the guide plate better guides the moving speed control of the materials.

In some embodiments, the furnace tube plate comprises a first side and a second side which are oppositely arranged, the material guiding plate extends from the first side to the second side, and extends from the material inlet to the material outlet.

The arrangement ensures that the material guide plate can control the moving speed of the material during rotation, so that the material moves from the feed inlet to the discharge outlet.

In some embodiments, the shoveling plate extends from the inlet to the outlet and from the first side to the second side.

The arrangement mode can enable the shoveling plate to further push the material to move from the feeding port to the discharging port, and can enable the material to be overturned in the moving process.

In some embodiments, the shoveling plate extends from an inner wall of the furnace tube plate in a direction away from the furnace tube plate and from the first side to the second side.

The arrangement mode enables the shoveling plate to incline relative to the inner wall, so that the material can be overturned smoothly.

In some embodiments, the guide plate on each of the inner walls is perpendicular to the inner walls.

Through this kind of mode, the stock guide can block the material to make the material by the rotatory forward of stock guide promotion, better be heated.

In some embodiments, two ends of the shoveling plate are abutted against adjacent guide plates.

The arrangement mode can enable the material copying plate to copy the materials.

In some embodiments, at least two shoveling plates are disposed between two adjacent guide plates in the same furnace tube plate.

The plurality of shoveling plates can be matched with each other, so that better turning and shoveling of materials are realized.

In order to solve the technical problems, another technical scheme adopted by the application is as follows: the method comprises the steps that a rotary furnace is provided, the rotary furnace comprises a support, a furnace tube, a power device and a heating device, the furnace tube is rotationally connected with the support, the power device is connected with the furnace tube and used for driving the furnace tube to rotate, and the heating device is correspondingly arranged with the furnace tube so as to heat the furnace tube; wherein the furnace tube is any one of the furnace tubes.

Through the mode, the inner wall of the furnace tube is designed to be of a planar structure, so that materials can be laid on the inner wall of the furnace tube, the situation that the materials are stacked in the furnace tube and are uneven in thickness and thinness is avoided, and the materials in the furnace tube are heated uniformly.

Drawings

For a clearer description of the technical solutions in the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:

FIG. 1 is a schematic perspective view of a furnace tube according to some embodiments;

FIG. 2 is a right side view of a furnace tube according to some embodiments;

FIG. 3 is a top view of a tube sheet of a furnace tube in accordance with some embodiments;

FIG. 4 is a top view of a furnace tube sheet adjacent to the furnace tube sheet of FIG. 3;

FIG. 5 is a schematic cross-sectional structural view of a furnace tube sheet according to some embodiments;

fig. 6 provides a schematic structural diagram of a rotary kiln of some embodiments.

Marking:

furnace tube 10, bracket 20, power device 30 and heating device 40;

furnace tube plate 11, inner wall 111, guide plate 112, and shoveling plate 113.

Detailed Description

For the purposes of clarity, technical solutions and advantages of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings showing various embodiments according to the present application, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden on the person of ordinary skill in the art based on the embodiments described herein, are intended to be within 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 in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising," "including," "having," "containing," and the like in the description of the present application and in the claims and drawings are used for open ended terms. Thus, a method or apparatus that "comprises," includes, "" has "or" has, for example, one or more steps or elements, but is not limited to having only the one or more elements. The terms first, second and the like in the description and in the claims or in the above-described figures, are used for distinguishing between different objects and not necessarily for describing a particular sequential or chronological order. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be understood that the terms "center," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like indicate an orientation or positional relationship based on that shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "attached" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.

Reference in the specification 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 skilled in the art will explicitly and implicitly understand that the embodiments described herein may be combined with other embodiments.

As noted above, it should be emphasized that the term "comprises/comprising" when used in this specification is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

The terms "a" and "an" in this specification may mean one, but may also be consistent with the meaning of "at least one" or "one or more". The term "about" generally means that the value mentioned is plus or minus 10%, or more specifically plus or minus 5%. The term "or" as used in the claims means "and/or" unless explicitly indicated to the contrary, only alternatives are indicated.

The term "and/or" in this application is merely an association relation describing an associated object, and indicates that three relations may exist, for example, a and/or B may indicate: a exists alone, A and B exist together, and B exists alone. In this application, the character "/" generally indicates that the associated object is an or relationship.

The inventors of the present application noted that furnace tubes in existing rotary kiln and other kiln furnaces are all cylindrical, and the inner wall thereof is also cylindrical. The cylindrical furnace tube is simple to produce and convenient to rotate. However, in the furnace tube, the inner wall is cylindrical, so that the materials are necessarily stacked thicker in the middle and thinner on the two sides; in addition, the furnace tube can automatically slide along the inner wall in the rotating process, so that the positions of the lower layer and the upper layer of the material cannot be interchanged. When heating, the material in the middle position is heated well at the position close to the furnace tube, and the material stacked in the middle position on the upper layer cannot be heated well, so that the phenomenon of uneven heating of the material is generated. In addition, although the furnace tube is rotated, a small part of the material is wrapped in the middle, so that better heating cannot be enjoyed. This phenomenon is more pronounced especially in the case of more material. The material cannot be heated uniformly, so that the performance of the material is affected.

In order to solve the problem of uneven heating of materials in the furnace tube, the inventor notices that the main reason is that the inner wall of the furnace tube is arc-shaped, and the stacked materials are different in thickness. Accordingly, the inventors contemplate that the inner wall of the furnace tube may be modified, not using a cylindrical structure conventionally used in the prior art, but instead being a prismatic structure in which a plurality of planes are matched. So, the material in the boiler tube can be tiled on the inner wall of the planar structure, so that the stacked thin thickness of the material is consistent, the material in the boiler tube is heated uniformly, and the performance of the material is improved.

Based on the above considerations, in order to solve the problem of non-uniform heating of the material in the furnace tube, the inventors have conducted intensive studies and designed a furnace tube and a rotary furnace for processing the material to be heated. In particular, the powder is processed, for example, to form the powder for pole pieces of some batteries. The powder is powdery material.

Referring to FIGS. 1 and 2, FIG. 1 is a schematic perspective view of a furnace tube 10 according to some embodiments; FIG. 2 is a right side view of furnace tube 10 according to some embodiments. In this embodiment, the furnace tube 10 includes a plurality of inner walls 111, the inner walls 111 are planar structures, the plurality of inner walls 111 enclose a channel, and the channel is configured as a prismatic structure. In the present embodiment, the inner wall 111 of the furnace tube 10 includes 6 planar structures, and thus the channels are configured as hexagonal prism structures. In other embodiments, the inner wall 111 of the furnace tube 10 may include 3 or more planar structures, forming a prism structure such as a triangular prism structure. The inner wall 111 of the furnace tube 10 comprises 6 planar structures, and the inner wall 111 of the furnace tube 10 preferably comprises 8 planar structures, so that the channel is of an eight-prism structure, and the materials in the furnace tube 10 can be heated uniformly as much as possible under the condition that the structure of the furnace tube 10 is simpler.

The furnace tube 10 is an important component of kiln equipment such as a rotary kiln. Kiln equipment such as rotary kiln is used for processing the material, is particularly suitable for making the powder. The powder can be used for manufacturing parts such as positive and negative electrodes of batteries. The furnace tube 10 is a part for sintering the material, and the furnace tube 10 is required to be heated by the heating device 40 outside the furnace tube 10, so that the material in the furnace tube 10 is heated. The furnace tube 10 also rotates when heated, so that the materials in the furnace tube 10 are uniformly heated. The materials in furnace tube 10 are typically powder or granular materials. The channel surrounded by the inner wall 111 of the furnace tube 10 is a containing space for containing materials for heating and rotating, and the materials are heated and rotated in the channel. The inner wall 111 of furnace tube 10 is also the portion carrying the material. After the external heating component heats the furnace tube 10, the temperature of the inner wall 111 of the furnace tube 10 is higher, so that the materials carried by the furnace tube is heated. The inner wall 111 of the furnace tube 10 has a plurality of planar structures, and the planar structures extend along the length direction of the furnace tube 10, that is, the inner wall 111 of the furnace tube 10 is parallel to the axis of the furnace tube 10. The inner wall 111 of the furnace tube 10 is preferably a regular prism structure, for example, in the present embodiment, the inner wall 111 of the furnace tube 10 is preferably a regular hexagonal prism structure. The regular prism structure can enable materials to stay on the inner walls 111 of the furnace tube 10 for the same or similar time, and can enable the materials to be heated uniformly better. The outer wall of the furnace tube 10, i.e., the portion corresponding to the inner wall 111 of the furnace tube 10, is the outer layer of the furnace tube 10. In the present embodiment, the outer wall of the furnace tube 10 corresponds to the shape of the inner wall 111 of the furnace tube 10, that is, is also a hexagonal prism structure. The arrangement mode can make the thickness of the furnace tube 10 uniform, so that the temperature of the inner wall 111 is kept uniform when the furnace tube 10 is heated. In other embodiments, the outer wall of the furnace tube 10 may be a cylindrical structure, etc., and may be configured as desired.

By setting the inner wall 111 of the furnace tube 10 to be a planar structure, materials can be spread on the inner wall 111 of the furnace tube 10, and the situation that the materials are stacked in the furnace tube and are uneven in thickness and thinness is avoided, so that the materials in the furnace tube 10 are heated uniformly.

In some embodiments, furnace tube 10 includes a plurality of tube sheets 11. At least one side surface of the plurality of tube sheets 11 is flat to serve as an inner wall 111 of the furnace tube 10. The plurality of furnace tube plates 11 are sequentially spliced and connected and are configured into a tubular structure. In some embodiments, the overall structure of the furnace tube 10 is a prismatic structure, i.e., the outer wall of the furnace tube 10 is a prismatic structure.

The tube sheet 11 is an important component of the furnace tube 10. In some embodiments, the furnace tube plate 11 is a plate-like structure, preferably a rectangular parallelepiped structure. The long sides of the tube plates 11 are connected to each other to form a tube structure, so that a furnace tube 10 can be formed. I.e. two long sides of each tube plate 11 are connected to the long sides of two different tube plates 11. Each tube plate 11 is of equal length. The furnace tube plate 11 is preferably made of metal, so that good heat conduction is ensured. Alternatively, the furnace tube plate 11 is made of another material that is easily heat-conductive, such as silicone. The furnace tube plates 11 can be connected in a welding mode, so that sealing can be realized under the condition of ensuring stable connection. The furnace tube plates 11 may be connected by bonding or the like, and it is only necessary to ensure stable connection and sealing. The seal is to prevent leakage of material in furnace tube 10. The furnace tube sheet 11 may be of other shapes as well, only by ensuring that the surface forming the inner wall 111 is planar. In the furnace tube plate 11, the surface corresponding to the surface forming the inner wall 111 may be a cambered surface. The outer wall of the furnace tube 10 is opposite to the inner wall of the furnace tube 10, the inner wall of the furnace tube 10 is inside the furnace tube 10, and the outer wall of the furnace tube 10 is the outer surface of the furnace tube 10. The overall structure of the furnace tube 10 is a prismatic structure, and the furnace tube 10 is a prismatic structure in appearance.

By splicing the plurality of furnace tube plates 11, the inner wall 111 of the furnace tube 10 can be ensured to be a plurality of planes, and the processing is easy.

Referring further to fig. 3 and 4, fig. 3 is a top view of a furnace tube plate 11 of a furnace tube 10 according to some embodiments, and fig. 4 is a top view of a furnace tube plate 11 adjacent to the furnace tube plate 11 of fig. 3. In some embodiments, guide plates 112 are spaced apart on the inner wall 111 of the furnace tube sheet 11. The guide plates 112 are slightly inclined with respect to the length direction of the furnace tube 10, and the guide plates 112 on the adjacent inner walls 111 are mutually matched to form a spiral structure.

The material guiding plate 112 is a spiral structure disposed in the furnace tube 10, and is used for driving the material to move when rotating, so that the material can move from one end of the furnace tube 10 to the other end. The guide plate 112 may have a flat plate structure or a certain radian, and only needs to ensure that the guide plate 112 in the furnace tube 10 can be spliced into a spiral structure extending from one end of a channel in the furnace tube 10 to the other end of the channel. The guide plates 112 on the adjacent inner walls 111 are preferably in interference connection, that is, the leftmost guide plate 112 of the furnace tube plate 11 in fig. 3 is in interference with the leftmost guide plate 112 of the furnace tube plate 11 in fig. 4, so that the corresponding relationship is realized. The remaining guide plates 112 in the furnace tube plate 11 in fig. 3 also in turn abut against the remaining guide plates 112 in the furnace tube plate 11 in fig. 4. Alternatively, in some embodiments, the guide plates 112 between adjacent furnace tube plates 11 are offset. The offset arrangement is that the two guide plates 112 are offset from each other without being connected. The material guiding plate 112 is preferably made of the same material as the furnace tube plate 11, and is welded to the inner wall 111 of the furnace tube plate 11. Alternatively, the guide plate 112 may be attached to the inner wall 111 of the furnace tube plate 11 by adhesion or the like. This arrangement allows the guide plate 112 to also transfer heat, heat the material, and seal between the guide plate 112 and the inner wall 111.

During processing, the material guide plate 112 may be disposed on the inner wall 111 of the furnace tube plate 11, and then the furnace tube plates 11 are connected to each other, so that the processing process is relatively simple. Therefore, the guide plate 112 also uses a spliced structure, and is easy to process while realizing the function of controlling the moving speed of the material.

In some embodiments, a shoveling plate 113 is also provided on the inner wall 111. The shoveling plates 113 are disposed between adjacent guide plates 112 of the same furnace tube plate 11, and are disposed slightly inclined with respect to the guide plates 112. In some embodiments, a guide plate 112 is provided on each furnace tube plate 11.

The material plate 113 is provided to turn the material in the channel of the furnace tube 10, and the lower layer and the upper layer of the material in the furnace tube 10 are mutually exchanged. The material advances in the furnace tube 10 along the spiral channel formed by the material guiding plates 112, and the material copying plates 113 are arranged between the adjacent material guiding plates 112, so that the material needs to be turned over the material copying plates 113 when passing through the material copying plates 113, thereby realizing turning and copying of the material. In addition, the shoveling plate 113 can push the materials to move when rotating. The material-making plate 113 may have a plate-like structure, or may have an arc-shaped structure. The material plate 113 is preferably made of the same material as the furnace tube plate 11, and is welded to the inner wall 111 of the furnace tube plate 11. The arrangement can enable the shoveling plate 113 to transfer heat to heat the materials, and sealing between the shoveling plate 113 and the inner wall 111 is achieved.

The material-shoveling plate 113 is arranged to push the material to move forward and to turn the material over and to further promote the material to be heated uniformly.

In some embodiments, one end of the channel is a feed port and the other end is a discharge port, with one end of the guide plate 112 being adjacent the feed port and the other end being adjacent the discharge port.

In fig. 1, the upper left side is the inlet of the channel of the furnace tube 10, and the lower right side is the outlet of the channel of the furnace tube 10. In fig. 3 and 4, the left side of the tube plate 11 corresponds to a feed port, and the right side of the tube plate 11 corresponds to a discharge port. The feed inlet is the position where the material enters the furnace tube 10, and the discharge outlet is the position where the material exits the furnace tube 10. This arrangement allows the guide plate 112 to be inclined relative to the line connecting the inlet and outlet so that material can be transported from the inlet to the outlet.

This ensures better guidance and speed control of the material by the guide plate 112.

In some embodiments, the furnace tube plate 11 includes a first side and a second side disposed opposite to each other. When the furnace tube 10 rotates, the first side is located in front of the second side, and the guide plate 112 extends from the first side to the second side and from the feed inlet to the discharge outlet.

As shown in fig. 3 and 4, a first side of the tube plate 11 is located above the drawing and a second side of the tube plate 11 is located below the drawing. Referring to fig. 2, fig. 2 is a view of the discharge port. In FIG. 2, furnace tube 10 is rotated in a counter-clockwise direction. The material guide plate 112 extends from the first side to the second side and simultaneously extends from the feed inlet to the discharge outlet, so that the material guide plate 112 can guide the material from the feed inlet to the discharge outlet when the furnace tube 10 rotates.

This arrangement ensures that the guide plate 112 pushes material from the inlet to the outlet during rotation.

In some embodiments, the shoveling plate 113 extends from the inlet to the outlet and from the first side to the second side.

It should be noted that, when the shoveling plate 113 extends from the feeding port to the discharging port, the inclination angle is smaller; the angle of inclination is greater when extending from the first side to the second side. Because the first side of the tube plate 11 is positioned in front when the furnace tube 10 rotates, the side of the shoveling plate 113 close to the feed inlet is positioned in front, and the side close to the discharge outlet is positioned behind, so that the material is pushed to move towards the direction of the discharge outlet.

The arrangement mode can enable the shoveling plate 113 to further push materials to move from the feeding hole to the discharging hole.

Referring to FIG. 5, FIG. 5 is a schematic cross-sectional view of a furnace plate 11 according to some embodiments. In some embodiments, the lifter plate 113 extends from the inner wall 111 of the furnace tube sheet 11 in a direction away from the inner wall 111 of the furnace tube sheet 11 and simultaneously extends from the first side to the second side.

In fig. 5, the right side is a first side of the furnace tube sheet 11 and the left side is a second side of the furnace tube sheet 11. When the furnace tube 10 rotates, the connection between the shoveling plate 113 and the inner wall 111 of the furnace tube plate 11 is at the front, and the shoveling plate 113 is at the rear at the side far away from the inner wall 111 of the furnace tube plate 11. Therefore, when the furnace tube 10 rotates, the shoveling plate 113 pushes the material from the inner wall 111 to a direction away from the inner wall 111 smoothly until the material slides over the shoveling plate 113, so as to realize shoveling.

The arrangement mode enables the shoveling plate 113 to be slightly inclined relative to the inner wall 111, so that the materials can be overturned smoothly.

In some embodiments, the guide plate 112 on each inner wall 111 is perpendicular to the inner wall 111. The two ends of the shoveling plate 113 are abutted against the adjacent material guiding plates 112. In the same furnace tube plate 11, at least two shoveling plates 113 are provided between two adjacent material guiding plates 112.

The guide plate 112 is perpendicular to the inner wall 111, preventing material from passing over the guide plate 112 and thus following the path of the guide plate 112. The two ends of the shoveling plate 113 are abutted against the adjacent material guiding plates 112, so that materials between the material guiding plates 112 can be overturned and shoveled. Additionally, in some embodiments, the height of the shoveling plate 113 may be equal to or lower than the height of the guide plate 112. The height of the shoveling plate 113 is the vertical distance from the side of the shoveling plate 113 away from the inner wall 111 of the furnace tube plate 11 to the inner wall 111 of the furnace tube plate 11. The material sheets 113 are arranged between the adjacent material guiding plates 112, so that the material can be turned over and copied for multiple times, or the material can be turned over and copied, and omission is prevented.

In this way, the material guiding plate 112 can block the material, so that the material is pushed by the material guiding plate 112 to rotate forward, and is heated better. The arrangement mode can enable the material copying plate 113 to copy materials in a turning mode. The plurality of material-making plates 113 can be matched with each other to realize better material turning and making.

Referring to fig. 6, fig. 6 provides a schematic structural diagram of a rotary kiln according to some embodiments. In some embodiments, the rotary kiln comprises a support 20, a furnace tube 10, a power plant 30, and a heating device 40. The furnace tube 10 is rotatably connected with the bracket 20, the power device 30 is connected with the furnace tube 10 and is used for driving the furnace tube 10 to rotate, and the heating device 40 is correspondingly arranged with the furnace tube 10 so as to heat the furnace tube 10. Wherein the furnace tube 10 is any one of the furnace tubes 10 described above.

The support 20 is a member for supporting the furnace tube 10, and can adjust the inclination angle of the furnace tube 10, so that the furnace tube 10 is kept horizontal or the feed inlet is inclined upwards. The power device 30 is a device for supplying power to the furnace tube 10 so that the furnace tube 10 can rotate. The power device 30 may be a motor or other parts, and the power device 30 may be directly connected to the furnace tube 10, or may be connected to the furnace tube 10 through a gear, a transmission belt or other transmission devices. The outer wall of the furnace tube 10 can also be provided with a structure matched with a power installation device. The heating device 40 is disposed against the furnace tube 10 to heat the furnace tube 10. The heating device 40 may be an electric heating tube or the like.

Through the above manner, the inner wall 111 of the furnace tube 10 is designed to be a planar structure, so that materials can be laid on the inner wall 111 of the furnace tube 10, and the situation that the materials are unevenly stacked and thick and thin in the furnace tube is avoided, so that the materials in the furnace tube 10 are heated uniformly.

In some embodiments, the rotary kiln further comprises a furnace shell and a heat resistant insulation. The furnace tube 10 and the heating device 40 are wrapped by the heat-resistant heat-insulating layer, and the furnace shell is wrapped by the heat-resistant heat-insulating layer.

The heat-resistant heat-insulating layer is generally made of heat-resistant materials, and the heat-resistant heat-insulating layer has a main function of heat insulation. The furnace shell is arranged to bear the heat-resistant heat-insulating layer. The shape of the furnace shell is the same as that of the heat-resistant heat-insulating layer so as to prevent the heat-resistant heat-insulating layer from leaking.

The heat-resistant heat-insulating layer is arranged, so that the heating device can achieve a better heating effect on the furnace tube.

In some specific application scenarios, the furnace tube 10 of the present application includes a plurality of inner walls 111, the inner walls 111 are planar, the inner walls 111 enclose a channel, and the channel is configured as a prismatic structure. The furnace tube 10 includes a plurality of tube sheets 11. At least one side surface of the plurality of tube sheets 11 is flat to serve as an inner wall 111 of the furnace tube 10. The plurality of furnace tube sheets 11 are connected in sequence and configured in a tubular structure. The inner wall 111 of the furnace tube plate 11 is provided with guide plates 112 at intervals. The guide plates 112 are inclined relative to the length direction of the furnace tube 10, and the guide plates 112 on the adjacent inner walls 111 are mutually matched to form a spiral structure. The inner wall 111 is also provided with a shoveling plate 113. The shoveling plates 113 are arranged between adjacent material guiding plates 112 of the same furnace tube plate 11, and are obliquely arranged relative to the material guiding plates 112. In some embodiments, a guide plate 112 is provided on each furnace tube plate 11.

By setting the inner wall 111 of the furnace tube 10 to be a planar structure, materials can be spread on the inner wall 111 of the furnace tube 10, and the situation that the materials are stacked in the furnace tube and are uneven in thickness and thinness is avoided, so that the materials in the furnace tube 10 are heated uniformly. The material guide plate 112 is arranged to enable materials to be conveyed from the feed inlet of the furnace tube 10 to the discharge outlet of the furnace tube 10, and the material copying plate 113 is arranged to enable the materials to be well copied, so that the materials in the furnace tube 10 are heated uniformly.

The foregoing description is only of embodiments of the present application, and is not intended to limit the scope of the patent application, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present application or direct or indirect application in other related technical fields are included in the scope of the patent protection of the present application.

Claims (12)

1. The furnace tube is characterized by comprising a plurality of inner walls, wherein the inner walls are of a planar structure, a channel is defined by the inner walls, and the channel is configured as a prismatic structure.

2. The furnace tube of claim 1, wherein the furnace tube comprises a plurality of tube sheets, at least one side surface of the tube sheets is a plane, so as to be used as an inner wall of the furnace tube, and the tube sheets are sequentially connected and configured into a tubular structure.

3. The furnace tube according to claim 2, wherein the inner walls are provided with guide plates at intervals, the guide plates are arranged obliquely relative to the length direction of the furnace tube, and adjacent guide plates on the inner walls are mutually matched to form a spiral structure.

4. A furnace tube according to claim 3, wherein the inner wall is further provided with a shoveling plate, and the shoveling plate is disposed between adjacent guide plates of the same tube plate of the furnace and is disposed obliquely with respect to the guide plates.

5. The furnace tube of claim 4, wherein one end of the channel is a feed inlet and the other end is a discharge outlet, and wherein one end of the guide plate is adjacent to the feed inlet and the other end is adjacent to the discharge outlet.

6. The furnace tube of claim 5, wherein the furnace tube plate comprises a first side and a second side disposed opposite to each other, wherein the guide plate extends from the first side to the second side and from the feed port to the discharge port.

7. The furnace tube of claim 6, wherein the shoveling plate extends from the feed port to the discharge port and from the first side to the second side.

8. The furnace tube of claim 7, wherein the shoveling plate extends from an inner wall of the furnace tube sheet in a direction away from the furnace tube sheet and from the first side to the second side.

9. The furnace tube of any one of claims 3-8, wherein the guide plate on each of the inner walls is perpendicular to the inner walls.

10. The furnace tube of any one of claims 4-8, wherein two ends of the shoveling plate abut against adjacent ones of the guide plates.

11. The furnace tube according to any one of claims 4 to 8, wherein at least two of the shoveling plates are arranged at intervals between two adjacent guide plates in the same furnace tube plate.

12. The rotary furnace is characterized by comprising a bracket, a furnace tube, a power device and a heating device, wherein the furnace tube is rotationally connected with the bracket, the power device is connected with the furnace tube and is used for driving the furnace tube to rotate, and the heating device is correspondingly arranged with the furnace tube so as to heat the furnace tube; wherein the furnace tube is according to any one of claims 1-11.