CN217110407U

CN217110407U - Rotary kiln for sintering lithium battery material

Info

Publication number: CN217110407U
Application number: CN202220908235.0U
Authority: CN
Inventors: 祁丽君; 何军斌; 祝亮家; 赵建伟; 柴兆鑫; 霍勇安
Original assignee: Foshan Nisen Investment Co ltd
Current assignee: Foshan Nisen Investment Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-08-02
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses a lithium electricity rotary kiln for material sintering, include: the device comprises a bearing platform, a heating box body arranged on the bearing platform, a barrel body rotationally arranged on the heating box body, a feeding mechanism connected with the feeding end of the barrel body, and a discharging mechanism connected with the discharging end of the barrel body; the barrel by the actuating mechanism drive of installation on the bearing platform rotates, feed mechanism discharge mechanism with the barrel passes through the bearing and connects be connected with air inlet unit and gas vent on the barrel. The floor space of the rotary kiln is small, the production takt is continuous, and the productivity is far greater than that of a roller kiln; the manual use cost of the rotary kiln is low, and the average number of people in a group of general rotary kilns is 3; the heating box body is arranged outside the barrel body for heating, so that the structure is simple, and the maintenance is convenient; and introducing inert gas to protect the materials, and arranging an exhaust port to exhaust generated residual gas.

Description

Rotary kiln for sintering lithium battery material

Technical Field

The utility model relates to a lithium electricity material sintering equipment technical field especially relates to a rotary kiln is used in lithium electricity material sintering.

Background

In the conventional lithium battery materials (including positive and negative electrodes), a roller kiln is adopted for calcination treatment in the sintering process. The equipment has the advantages of continuous production and considerable capacity. Disadvantageously, the complete equipment occupies large space. At present, the length of a roller furnace in the lithium battery industry is about 60 meters, and the width of the roller furnace is about 5 meters; the operation cost is high, and more defects exist in the links of roller corrosion, sagger loss, automatic weighing, metering, loading and unloading stations; meanwhile, due to design factors of the performance of the heat insulation material and the congenital structure of the kiln, the use cost of the roller kiln is high, and generally, 9 persons are averagely used in one roller kiln production line.

The existing sintering process of the ternary material of the lithium battery is to use a roller kiln to sinter twice, and the application is a technical improvement and innovation for the secondary sintering process of the ternary material of the lithium battery. In the primary firing process of the ternary material of the lithium battery, a roller-way kiln is continuously reserved for firing; in the secondary sintering process, a rotary process is adopted for sintering, and the two processes are effectively combined for use, so that the sintering process of the lithium battery material is completed and achieved.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a lithium electricity material rotary kiln for sintering of two processes of burning for ternary lithium electricity material.

In order to achieve the above purpose, the utility model adopts the following technical scheme.

A rotary kiln for sintering a lithium battery material is characterized by comprising: the device comprises a bearing platform, a heating box body arranged on the bearing platform, a barrel body rotationally arranged on the heating box body, a feeding mechanism connected with the feeding end of the barrel body, and a discharging mechanism connected with the discharging end of the barrel body; the barrel by the actuating mechanism drive of installation on the bearing platform rotates, feed mechanism discharge mechanism with the barrel passes through the bearing and connects be connected with air inlet unit and gas vent on the barrel.

As a further explanation of the above scheme, a supporting frame for supporting the supporting platform is arranged at the bottom of the supporting platform, and an electric control system cabinet for controlling the feeding mechanism, the discharging mechanism and the driving mechanism to operate is arranged in the supporting frame.

As a further explanation of the above scheme, a reinforcing rib plate is arranged at the end corner of the side surface of the supporting frame.

As a further explanation of the above scheme, lifting devices are provided at both ends of the supporting frame, and the supporting frame supports the supporting platform through the lifting devices.

As a further explanation of the above scheme, a plurality of thermocouples are arranged on the heating box body; a box door for opening the heating box body is arranged on the side part of the heating box body; the heating box body is provided with a supporting seat for supporting the cylinder body, and the supporting seat is rotatably connected with the cylinder body through a bearing.

As a further explanation of the above scheme, the discharging mechanism includes: the discharging pipeline is connected with the discharging end of the barrel, a discharging port is formed in the discharging pipeline, and a discharging valve used for opening or closing the discharging port is arranged on the discharging port.

As a further explanation of the above solution, the feeding mechanism comprises: the feeding device comprises a feeding pipeline connected with the feeding end of the cylinder, a spiral feeding device arranged in the feeding pipeline, and a spiral feeding motor connected with the spiral feeding device.

As a further explanation of the above scheme, a feed inlet is arranged on the feed pipeline, and a feed valve for opening or closing the feed inlet is arranged on the feed inlet.

As a further explanation of the above aspect, the air intake apparatus includes: the first air inlet channel is arranged on the periphery of the feeding pipeline and communicated with the feeding pipeline, and the second air inlet channel is arranged on the periphery of the discharging pipeline and communicated with the discharging pipeline; and a plurality of air inlet joints are arranged on one sides of the first air inlet channel and the second air inlet channel, which are far away from the cylinder body, and air inlet valves are arranged on the air inlet joints.

As a further description of the above solution, a first exhaust port is disposed at the top of the first intake passage, and a second exhaust port is disposed at the top of the second intake passage.

The beneficial effects of the utility model are that.

The floor space of the rotary kiln is small, the production takt is continuous, and the productivity is far greater than that of a roller kiln; the manual use cost of the rotary kiln is low, and the average number of people in a group of general rotary kilns is 3; the heating box body is arranged outside the barrel body for heating, so that the structure is simple, and the maintenance is convenient; and introducing inert gas to protect the materials, and arranging an exhaust port to exhaust generated residual gas.

Drawings

Fig. 1 is a front view of a rotary kiln for sintering a lithium battery material according to the present invention.

Fig. 2 is a side view of the rotary kiln for sintering the lithium battery material provided by the present invention.

Fig. 3 is a top view of the rotary kiln for sintering the lithium battery material according to the present invention.

Reference numerals indicate the same.

1: electric control system cabinet, 2: lifting device, 3: screw feeding motor, 4: screw feeder, 5: feed inlet, 6: first exhaust port, 7: drive mechanism, 8: heating box body, 9: thermocouple, 10: second exhaust port, 11: discharge port, 12: and a reinforcing plate.

71: driven chain, 72: and a driving chain.

Detailed Description

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

As shown in fig. 1 to 3, a rotary kiln for sintering a lithium battery material includes: the device comprises a supporting platform, a heating box body 8 arranged on the supporting platform, a cylinder body rotationally arranged on the heating box body 8, a feeding mechanism connected with the feeding end of the cylinder body, and a discharging mechanism connected with the discharging end of the cylinder body; the barrel by actuating mechanism 7 drive of installation on the bearing platform rotates, feed mechanism discharge mechanism with the barrel passes through the bearing and connects, the barrel is connected with air inlet unit and gas vent.

It should be noted that the feeding mechanism includes: the feeding device comprises a feeding pipeline connected with the feeding end of the barrel, a spiral feeding device 4 arranged in the feeding pipeline, and a spiral feeding motor 3 connected with the spiral feeding device 4. The feeding pipeline is provided with a feeding port 5, and the feeding port 5 is provided with a feeding valve for opening or closing the feeding port.

The discharge mechanism comprises: a discharge pipeline connected with the discharge end of the cylinder body, and a discharge port 11 arranged on the discharge pipeline. And a discharge valve for opening or closing the discharge hole is arranged on the discharge hole 11. The discharge gate below is equipped with the household utensils that are used for accepting the material after the sintering, the household utensils can be manual formula and full-automatic formula. In this embodiment, the discharge transport of the material takes place by means of a screw of the feed device. Of course, in other embodiments, the lifting device 2 is provided at the bottom of the two ends of the supporting platform. The barrel can make the material in the barrel remove through the discharge gate ejection of compact behind the ejection of compact pipeline through 2 angle modulation of elevating gear, is not limited to this embodiment. Preferably, the lifting device 2 is an electric telescopic rod.

The drive mechanism 7 includes: the device comprises a motor arranged on a bearing platform, a driving wheel 72 arranged on an output shaft of the motor, a driven wheel 71 arranged on the surface of the cylinder body, and a chain tensioned on the driven wheel and the driving wheel or meshed with the driving wheel through tooth profiles.

In addition, the air intake device includes: the first air inlet channel is arranged on the periphery of the feeding pipeline and is communicated with the feeding pipeline, and the second air inlet channel is arranged on the periphery of the discharging pipeline and is communicated with the discharging pipeline; and a plurality of air inlet joints are arranged on one sides of the first air inlet channel and the second air inlet channel, which are far away from the cylinder body, and air inlet valves are arranged on the air inlet joints.

The exhaust port includes: a first exhaust port 6 arranged at the top of the first air inlet channel and a second exhaust port 10 arranged at the top of the second air inlet channel. Preferably, a filter device is detachably mounted to the first exhaust port and the second exhaust port. During the sintering of the materials, inert gases such as nitrogen, argon and the like can be filled into the cylinder through the air inlet device, residual gases containing asphalt and tar components can be generated during the chemical and crystallization reaction of the materials in the cylinder, the residual gases need to be discharged continuously, and the first exhaust port or the second exhaust port can be opened for air inlet and discharge. In general, the material inlet and the material outlet also play a role in exhausting gas. The two air inlet channels are arranged to facilitate the selection of different inert gases during the sintering of different materials, and the second exhaust port is opened for exhaust when the air is introduced through the first air inlet channel, so that the inert gases can be discharged through the cylinder.

Furthermore, a supporting frame is arranged at the bottom of the supporting platform, an electric control system cabinet 1 is arranged in the supporting frame, and the electric control system cabinet 1 is used for controlling the rotary kiln to work. The lifting device is arranged at two ends of the supporting frame, and the supporting frame supports the bearing platform through the lifting device. As for the specific structure of the electric control system cabinet, it is purchased by the skilled in the art according to the actual needs, which is the common technical knowledge grasped by the skilled in the art, and the detailed description is not repeated. And reinforcing rib plates 12 are arranged at the end corners of the side surfaces of the supporting frame, so that the strength of the supporting frame is increased.

And a thermocouple 9 connected with the electric control system cabinet 1 is arranged on the heating box body 8. And a box door for opening the heating box body is arranged on the side part of the heating box body. And a heat insulation layer is arranged on the inner side of the heating box body.

The heating box body is provided with a supporting seat for supporting the cylinder body, and the cylinder body is rotatably connected with the supporting seat through a bearing. The number of the supporting seats is at least two. In this embodiment, the two supporting seats form two side portions of the heating box body.

It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the known art are intended to fall within the scope of the invention, which is defined by the claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.

Claims

1. A rotary kiln for sintering a lithium battery material is characterized by comprising: the device comprises a bearing platform, a heating box body arranged on the bearing platform, a barrel body rotationally arranged on the heating box body, a feeding mechanism connected with the feeding end of the barrel body, and a discharging mechanism connected with the discharging end of the barrel body; the barrel by the actuating mechanism drive of installation on the bearing platform rotates, feed mechanism discharge mechanism with the barrel passes through the bearing and connects be connected with air inlet unit and gas vent on the barrel.

2. The rotary kiln for sintering the lithium battery material as claimed in claim 1, wherein a supporting frame for supporting the supporting platform is arranged at the bottom of the supporting platform, and an electric control system cabinet for controlling the operation of the feeding mechanism, the discharging mechanism and the driving mechanism is arranged in the supporting frame.

3. The rotary kiln for sintering the lithium battery material as claimed in claim 2, wherein reinforcing rib plates are arranged at the side end corners of the supporting frame.

4. The rotary kiln for sintering the lithium battery material as claimed in claim 2, wherein lifting devices are arranged at two ends of the supporting frame, and the supporting frame supports the supporting platform through the lifting devices.

5. The rotary kiln for sintering the lithium battery material as claimed in claim 1, wherein a plurality of thermocouples are arranged on the heating box body; a box door for opening the heating box body is arranged on the side part of the heating box body; the heating box body is provided with a supporting seat for supporting the cylinder body, and the supporting seat is rotatably connected with the cylinder body through a bearing.

6. The rotary kiln for sintering the lithium battery material as claimed in claim 1, wherein the discharging mechanism comprises: the discharge pipeline is connected with the discharge end of the cylinder body, and a discharge hole is formed in the discharge pipeline; and a discharge valve for opening or closing the discharge hole is arranged on the discharge hole.

7. The rotary kiln for sintering the lithium battery material as claimed in claim 6, wherein the feeding mechanism comprises: the feeding device comprises a feeding pipeline connected with the feeding end of the cylinder, a spiral feeding device arranged in the feeding pipeline, and a spiral feeding motor connected with the spiral feeding device.

8. The rotary kiln for sintering the lithium battery material as claimed in claim 7, wherein a feed port is arranged on the feed pipeline, and a feed valve for opening or closing the feed port is arranged on the feed port.

9. The rotary kiln for sintering the lithium battery material as claimed in claim 7, wherein the gas inlet device comprises: the first air inlet channel is arranged on the periphery of the feeding pipeline and communicated with the feeding pipeline, and the second air inlet channel is arranged on the periphery of the discharging pipeline and communicated with the discharging pipeline; and a plurality of air inlet joints are arranged on one sides of the first air inlet channel and the second air inlet channel, which are far away from the cylinder body, and air inlet valves are arranged on the air inlet joints.

10. The rotary kiln for sintering the lithium battery material as claimed in claim 9, wherein a first exhaust port is formed at a top of the first air inlet passage, and a second exhaust port is formed at a top of the second air inlet passage.