Improved lithium bicarbonate pyrolysis equipment
Through the improved lithium bicarbonate pyrolysis equipment of negative pressure tank pressurization and spiral orbit dispersion solution, the problems of low lithium precipitation rate and inconvenient sampling and detection are solved, efficient lithium precipitation and simple detection are achieved, and production costs are reduced.
Patent Information
- Application Number
- CN202422261721.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-14
AI Technical Summary
The lithium precipitation rate of traditional lithium bicarbonate pyrolysis towers is low, the production cost is high, and the lithium precipitation cannot be tested in real time, which affects the pyrolysis efficiency.
An improved lithium bicarbonate pyrolysis equipment is designed, using negative pressure tank pressurization and spiral orbit dispersion solution, combined with a standstill plate and agitator to achieve efficient precipitation of lithium and sampling and detection at any time.
The lithium precipitation rate is improved, the sampling and detection process is simplified, the lithium precipitation rate is accelerated, the production cost is reduced and the pyrolysis efficiency is improved.
Smart Images
Figure CN223042679U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of lithium recovery, and specifically to an improved lithium bicarbonate pyrolysis device. Background Art
[0002] In the recovery of lithium, the pyrolysis of lithium bicarbonate is also a means of lithium recovery. When the traditional lithium bicarbonate pyrolysis tower pyrolyzes lithium bicarbonate, the precipitation rate of lithium is not high, resulting in waste of lithium materials and high production costs. Moreover, during the pyrolysis process, it is impossible to sample and detect the solution in real time to monitor the precipitation of lithium. It is necessary to stop the pyrolysis process or disassemble the equipment components, which is cumbersome in operation and affects the pyrolysis efficiency. Therefore, an improved lithium bicarbonate pyrolysis device is needed. Summary of the Utility Model
[0003] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide an improved lithium bicarbonate pyrolysis device, which can improve the lithium precipitation rate, sample and detect at any time, and accelerate the lithium precipitation rate.
[0004] The above technical purpose of the utility model is achieved through the following technical solutions: An improved lithium bicarbonate pyrolysis device includes a support frame, on which a pyrolysis tank and a negative pressure tank are arranged. The pyrolysis tank and the negative pressure tank are connected by a pipeline. The pyrolysis tank is communicated with a heating pipe and a feeding pipe. The pyrolysis tank includes a diversion part and a static part. A driving motor is installed on the diversion part. The output shaft of the driving motor is fixedly connected with a rotating shaft. A stirrer is arranged at the end of the rotating shaft. A spiral track is arranged on the inner surface of the diversion part. The static part includes a rotating rod, and a connecting frame is fixedly connected to the end of the rotating rod. A static disk is slidably connected to the end of the connecting frame. A plurality of liquid leakage holes penetrate through the static disk. A support rod for blocking the liquid leakage holes is arranged on the connecting frame at a position corresponding to the liquid leakage holes. A plug is installed at the bottom of the static part, and a sampling hole is opened on the plug.
[0005] In some embodiments, the negative pressure tank adopts a coil heat tracing design.
[0006] In some embodiments, the static part is funnel-shaped.
[0007] In some embodiments, a knob is arranged at one end of the rotating rod far away from the connecting frame.
[0008] In some embodiments, a guiding slope is arranged on the rotating shaft between the feeding pipe and the spiral track, and there is a gap between the edge of the guiding slope and the diversion part.
[0009] In some embodiments, the negative pressure applied by the negative pressure tank is -0.003 Mpa to -0.005 Mpa.
[0010] In summary, the utility model has the following beneficial effects:
[0011] The utility model pressurizes the pyrolysis tank through a negative pressure tank, thereby increasing the precipitation rate of lithium, and uses a spiral track to separate the solution, enabling the lithium in the solution to precipitate faster. At the same time, through the cooperation of the connecting frame and the static disk, the solution can be sampled at any time and quickly to detect the precipitation rate of lithium, ensuring that the precipitation situation of lithium in the solution can be grasped at any time, and a stirrer is used to accelerate the precipitation rate, with simple and convenient operation without being cumbersome. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 is a sectional view of the utility model;
[0014] Figure 3 is a partial sectional view of the utility model.
[0015] In the figure: 1, support frame; 2, pyrolysis tank; 21, diversion part; 211, drive motor; 212, rotating shaft; 213, stirrer; 214, spiral track; 215, guiding slope; 22, static part; 221, rotating rod; 222, connecting frame; 223, static disk; 224, liquid leakage hole; 225, plug; 226, sampling hole; 227, knob; 3, negative pressure tank; 4, heating pipe; 5, feeding pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0016] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0017] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0018] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are merely exemplary and are not intended to limit the scope of the present utility model. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.
[0019] See Figures 1-3 , an improved lithium bicarbonate pyrolysis device, comprising a support frame 1, on which a pyrolysis tank 2 and a negative pressure tank 3 are provided. The pyrolysis tank 2 and the negative pressure tank 3 are connected by a pipeline. The pyrolysis tank 2 is communicated with a heating pipe 4 and a feeding pipe 5. The pyrolysis tank 2 includes a diversion part 21 and a static part 22. The diversion part 21 and the static part 22 are of a conventional detachable connection, such as being screwed, etc., and will not be elaborated here. A driving motor 211 is installed on the diversion part 21. The output shaft of the driving motor 211 is fixedly connected with a rotating shaft 212. A stirrer 213 is arranged at the end of the rotating shaft 212. A spiral track 214 is arranged on the inner surface of the diversion part 21. The static part 22 includes a rotating rod 221. A connecting frame 222 is fixedly connected to the end of the rotating rod 221. A static disk 223 is slidably connected to the end of the connecting frame 222. A plurality of liquid leakage holes 224 penetrate through the static disk 223. A support rod for blocking the liquid leakage holes 224 is arranged at a position corresponding to the liquid leakage holes 224 on the connecting frame 222. A plug 225 is installed at the bottom of the static part 22. A sampling hole 226 is opened in the plug 225. During operation, the pyrolysis tank 2 receives hot gas from an external heater through the heating pipe 4. Then, the operator pours the lithium bicarbonate solution into the pyrolysis tank 2 from the feeding pipe 5 and applies pressure through the negative pressure tank 3, thereby increasing the precipitation rate of lithium. The negative pressure tank 3 adopts a coil heat tracing design. The negative pressure applied by the negative pressure tank 3 is -0.003 Mpa to -0.005 Mpa to ensure the stability of the pressure and guarantee the precipitation effect of lithium. And after the lithium bicarbonate solution enters the pyrolysis tank 2, a part of the lithium bicarbonate solution is directly on the static disk 223, and another part of the lithium bicarbonate solution flows on the spiral track 214, thereby dispersing the solution so that the amount of the solution undergoing pyrolysis is dispersed under the same hot gas environment, thus accelerating the precipitation rate of lithium in the lithium bicarbonate solution. Finally, the lithium bicarbonate solution gathers on the static disk 223. When the operator needs to sample and detect the precipitation rate of lithium, the operator only needs to connect a sampling bottle through the sampling hole 226, and then rotate the rotating rod 221. The rotating rod 221 drives the connecting frame 222 to rotate, so that the support rod of the connecting frame 222 no longer blocks the liquid leakage holes 224. The solution for sampling flows out from the liquid leakage holes 224 and enters the sampling bottle through the sampling hole 226, and then it can be detected at any time. The operation is simple and fast. If the precipitation rate of lithium is low, the operator can control the driving motor 211 to drive the stirrer 213 to stir the solution, stir the solution to be heated, and accelerate the precipitation rate.
[0020] In some embodiments, the static part 22 is funnel-shaped. The funnel-shaped static part 22 enables the solution flowing out of the liquid leakage hole 224 to be collected at the bottom of the static part 22 faster and enter the external sampling bottle through the sampling hole 226, improving the sampling efficiency.
[0021] In some embodiments, a knob 227 is provided at one end of the rotating rod 221 away from the connecting frame 222. When an operator takes a sample, rotating the knob 227 causes the rotating rod 221 to rotate, which can not only protect the rotating rod 221 from being damaged by external collisions and extend the service life of the rotating rod 221, but also prevent the operator's hand from being scratched by the rotating rod 221, and make it more convenient and comfortable for the operator to rotate the rotating rod 221.
[0022] In some embodiments, a guiding slope 215 is provided on the rotating shaft 212 between the feeding pipe 5 and the spiral track 214, and there is a gap between the edge of the guiding slope 215 and the guiding part 21. After the operator pours the lithium bicarbonate solution into the pyrolysis tank 2, the solution contacts the inner wall of the pyrolysis tank 2 along the guidance of the guiding slope 215 and flows down along the inner wall. The guiding slope 215 can not only guide the solution so that all the solution can enter the spiral track 214, ensuring that all the solution can extend the contact time with the hot gas, but also make the solution spread out and flow down along the inner wall of the pyrolysis tank 2, thereby increasing the heating area of the solution, making the heating more uniform, and improving the pyrolysis efficiency.
[0023] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.
Claims
1. An improved lithium bicarbonate pyrolysis device, comprising a support frame (1), characterized in that: The support frame (1) is provided with a pyrolysis tank (2) and a negative pressure tank (3), the pyrolysis tank (2) and the negative pressure tank (3) are connected via a pipeline, the pyrolysis tank (2) is connected with a heat supply pipe (4) and a feed pipe (5), the pyrolysis tank (2) comprises a flow guide portion (21) and a stationary portion (22), a driving motor (211) is installed on the flow guide portion (21), an output shaft of the driving motor (211) is fixedly connected to a rotating shaft (212), an agitator (213) is provided at the end of the rotating shaft (212), and a spiral track (213) is provided on the inner surface of the flow guide portion (21). 214), the stationary portion (22) comprises a rotating rod (221), the end of the rotating rod (221) is fixedly connected to a connecting frame (222), the end of the connecting frame (222) is slidably connected to a stationary disk (223), a plurality of liquid leakage holes (224) are penetrated on the stationary disk (223), a support rod for covering the liquid leakage holes (224) is arranged at a position corresponding to the position of the liquid leakage holes (224) on the connecting frame (222), and a plug (225) is installed at the bottom of the stationary portion (22), and a sampling hole (226) is opened on the plug (225).
2. An improved lithium bicarbonate pyrolysis device according to claim 1, characterized in that: The negative pressure tank (3) adopts a coil heating design.
3. The improved lithium bicarbonate pyrolysis device according to claim 1, characterized in that: The stationary portion (22) is funnel-shaped.
4. The improved lithium bicarbonate pyrolysis device according to claim 1, characterized in that: A knob (227) is provided at one end of the rotating rod (221) away from the connecting frame (222).
5. The improved lithium bicarbonate pyrolysis equipment according to claim 1, characterized in that: A guide slope (215) is provided on the rotating shaft (212) between the feed pipe (5) and the spiral track (214), and a gap is left between the edge of the guide slope (215) and the guide portion (21).
6. The improved lithium bicarbonate pyrolysis equipment according to claim 1, characterized in that: The negative pressure applied by the negative pressure tank (3) is -0.003 MPa to -0.005 MPa.