Reaction kettle for continuously extracting lithium
By designing a reactor with multi-layered stirring blades and a reaction liquid guiding mechanism, the problem of ineffective discharge of the reaction liquid was solved, and the stable operation of the continuous lithium extraction process was achieved, improving the efficiency and continuity of the reactor.
Patent Information
- Application Number
- CN202423205645.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The existing reactor cannot effectively discharge the reaction liquid, which prevents the smooth discharge of the sparingly soluble powder and makes it impossible to achieve a continuous lithium extraction process.
A reactor comprising a vessel body, a stirring mechanism, a reaction liquid guiding mechanism, a feeding pipe, a heating device, and multi-layer stirring blades was designed. The reactor is controlled by an electronically controlled valve and a temperature sensor to enable the cascading use of multiple reactors and the continuous discharge of the reaction liquid.
This method achieves thorough mixing and export of the reaction solution, ensuring continuous operation of the reactor and improving the efficiency and stability of the lithium extraction process.
Smart Images
Figure CN223587162U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a kind of reaction kettle for continuous lithium extraction. BACKGROUND
[0002] The existing reaction kettle is generally used alone, such as the reaction kettle disclosed in Publication No. CN218359186U, which includes a kettle body, a stirring mechanism provided at the top of the kettle body; a discharge pipeline is provided at the bottom of the kettle body, a first valve is provided on the discharge pipeline, a gas-liquid feeding pipeline is provided at a position between the first valve and the kettle body, and a second valve is provided on the gas-liquid feeding pipeline; a scraper is provided at the bottom of the kettle body, the scraper is in contact with the inner wall of the bottom of the kettle body, and the scraper is driven by a first motor provided at the bottom of the kettle body; a rotating shaft of the scraper penetrates the bottom of the kettle body, and a spiral blade is installed above the rotating shaft at the bottom of the kettle body. High-speed gas or liquid is introduced into the gas-liquid feeding pipeline to prevent the discharge pipeline at the bottom from being blocked. The scraper and the spiral blade are driven by independent motors, which can be started according to actual needs and can rotate clockwise or counterclockwise to prevent the sediment at the bottom of the reactor from being hardened and to completely solve the problem that insoluble powders cannot be smoothly discharged from the outlet. Although this reaction kettle solves the problem of stirring, the problem of how to effectively discharge the reaction liquid cannot be solved.
[0003] Therefore, it is necessary to design a new reaction kettle for continuous lithium extraction. CONTENT OF THE UTILITY MODEL
[0004] The technical problem to be solved by the utility model is to provide a reaction kettle for continuous lithium extraction, which is compact in structure and easy to control.
[0005] The technical solution of the utility model is as follows:
[0006] A reaction kettle for continuous lithium extraction includes a kettle body and a stirring mechanism provided in the kettle body.
[0007] A reaction liquid guiding mechanism is provided in the kettle body.
[0008] A feeding pipe is further provided in the kettle body.
[0009] A reaction kettle inflow pipeline and a reaction liquid overflow pipeline with a first electric control valve are provided on the kettle wall of the kettle body.
[0010] A heating device is provided inside the kettle body.
[0011] The stirring mechanism, the first electric control valve, and the heating device are all controlled by a controller.
[0012] The reaction liquid guiding mechanism is multiple.
[0013] The reaction liquid guiding mechanism is a vertical guiding pipe, and the bottom of the guiding pipe is in communication with the bottom of the kettle body.
[0014] The stirring mechanism has multi-layer paddles.
[0015] The inside bottom periphery of the reaction kettle is provided with a chamfer, i.e., the inside bottom of the reaction kettle is a conical bottom.
[0016] The feeding pipes are multiple, vertical pipes, and the discharge outlets of the multiple feeding pipes are located at different depths in the kettle body; not shown in the figure. Different density substances can be conveniently added, and the more dense the substance, the deeper the feeding pipe.
[0017] The reaction kettle inflow pipe and the reaction liquid overflow pipe are both connected with the reaction liquid overflow groove outside the kettle body.
[0018] The multiple reaction kettles are used in cascade, arranged from high to low in sequence, and the reaction liquid overflow groove is provided with multiple second electric control valves controlled by a controller. The second electric control valve can be a three-way valve.
[0019] The reaction kettle is further provided with a temperature sensor connected with the controller.
[0020] Beneficial effects:
[0021] The reaction kettle for continuous lithium extraction of the utility model is provided with multi-layer stirring paddles, which is beneficial to sufficient stirring, multiple flow guide devices are arranged in the kettle body, which is beneficial to sufficient reaction, multiple reaction kettles share one overflow groove, the flow direction of the slurry is controlled by the electric control valve, and any reaction kettle is controlled to participate in the reaction, so that the continuous lithium extraction process is conveniently realized. BRIEF DESCRIPTION OF DRAWINGS
[0022] Fig. 1 It is a cascade schematic view (front view cross section) of 8 reaction kettles;
[0023] Fig. 2 It is a schematic view (front view cross section) of the reaction kettle structure;
[0024] Fig. 3 It is a connection view (top view) of the reaction kettle and the overflow groove;
[0025] Label explanation: 1-reaction kettle, 2-reaction liquid overflow groove, 3-reaction liquid inflow pipe, 4-reaction liquid outflow pipe, 5-first electric control valve, 6-second electric control valve, 7-stirring mechanism, 8-reaction liquid flow guide mechanism, 9-feeding pipe. DETAILED DESCRIPTION
[0026] The utility model will be further explained in detail in combination with the drawings and specific embodiments:
[0027] Embodiment 1: as Figs. 1-3 A reaction kettle for continuous lithium extraction, comprising a kettle body and a stirring mechanism 7 arranged in the kettle body;
[0028] The kettle body is provided with a reaction liquid guiding mechanism 8;
[0029] The kettle body is further provided with a feeding pipe 9;
[0030] The kettle wall of the kettle body is provided with a reaction kettle inflow pipe 3 and a reaction liquid overflow pipe 4 with a first electric control valve 5;
[0031] The kettle body is internally provided with a heating device, which is convenient for controlling the reaction of the slurry at a predetermined temperature.
[0032] The stirring mechanism, the first electric control valve and the heating device are all controlled by a controller. The controller is an MCU, which adopts a DSP or a PLC module.
[0033] The reaction liquid guiding mechanism is multiple. The reaction liquid guiding mechanism is a vertical guiding pipe, and the bottom of the guiding pipe is communicated with the bottom of the kettle body.
[0034] The stirring mechanism has multiple layers of paddles.
[0035] The inside bottom periphery of the reaction kettle is provided with a chamfer. That is, the inside bottom of the reaction kettle is a conical bottom.
[0036] The feeding pipe is multiple, and the feeding pipe is a vertical pipe. The outlet of the multiple feeding pipes is located at different depths in the kettle body (not shown in the figure). It is convenient to add substances with different densities, and the substances with greater density are added from the feeding pipe with greater depth.
[0037] The reaction kettle inflow pipe and the reaction liquid overflow pipe are both connected with a reaction liquid overflow tank 2 outside the kettle body.
[0038] The multiple reaction kettles (8 in the figure, generally 6-12) are used in cascade. The multiple reaction kettles are arranged from high to low in sequence. The reaction liquid overflow tank is provided with multiple second electric control valves controlled by the controller. The second electric control valve can be a three-way valve.
[0039] The kettle body is further provided with a temperature sensor connected with the controller.
[0040] The reaction kettles are preferably 6-12 (8 in the figure). In principle, each link corresponds to two reaction kettles, and at least two reaction kettles are reserved for standby. Each reaction kettle can complete all reaction links. When abnormal conditions such as material change, equipment failure and human factors occur, the subsequent reaction kettles can also complete the remaining reaction.
[0041] The reaction kettle has the following characteristics:
[0042] 1. More than 8 (including 8) reaction kettles are arranged in series, and when used in continuous reaction, any 3 or more of them can complete the reaction, and can be switched at any time. The controller can switch which reaction kettle is put into use through the first electric control valve and the second control valve, and can also control whether the reaction liquid passes through or bypasses a certain reaction kettle by controlling the second valve.
[0043] 2. The reaction kettles are arranged from high to low to save energy consumption.
[0044] 3. The inlets of the reaction kettles are arranged at upper, middle and lower positions of the kettle body. This arrangement is beneficial to the uniformity of the reaction of heavy materials entering from the upper part and light materials entering from the lower part.
[0045] 4. Multiple flow guide devices are arranged inside the reaction kettles, which are beneficial to the full reaction.
[0046] 5. The overflow outlet of the reaction liquid is generally arranged at the upper middle part of the kettle body, and the qualified liquid of solid-liquid phase reaction generally has a smaller specific gravity than the solid phase.
[0047] 6. An automatic controllable baffle is arranged at the inlet and outlet of each reaction kettle for controlling the flow and opening and closing.
[0048] 7. A cutting corner is arranged at the periphery of the bottom surface inside the reaction kettle to prevent material deposition.
[0049] 8. A heating device is arranged inside the reaction kettle.
[0050] 9. The reaction kettle is provided with stirring, and generally multiple layers of paddles are arranged to fully mix and react different specific gravity materials.
[0051] Any modification, equivalent replacement and improvement within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.
Claims
1. A reactor for continuous lithium extraction, characterized in that, The reactor comprises a kettle body and a stirring mechanism (7) arranged in the kettle body; A reaction liquid flow guide mechanism (8) is arranged in the kettle body; A feeding pipe (9) is further arranged in the kettle body; A reaction kettle inflow pipe (3) and a reaction liquid overflow pipe (4) with a first electric control valve (5) are arranged on the kettle wall of the kettle body; A heating device is arranged in the kettle body; The stirring mechanism, the first electric control valve and the heating device are controlled by a controller.
2. The reactor for continuous lithium extraction according to claim 1, characterized in that, The reaction liquid flow guide mechanism is multiple.
3. The reactor for continuous lithium extraction according to claim 2, characterized in that, The reaction liquid flow guide mechanism is a vertical flow guide pipe, and the bottom of the flow guide pipe is communicated with the bottom of the kettle body.
4. The reactor for continuous lithium extraction according to claim 1, characterized in that, The stirring mechanism has multiple layers of paddles.
5. The reactor for continuous lithium extraction according to claim 1, characterized in that, The inside bottom of the kettle is provided with a chamfered corner.
6. The reactor for continuous lithium extraction according to claim 1, characterized in that, The feeding pipe is multiple, and the feeding pipe is a vertical pipe, and the discharge ports of the multiple feeding pipes are located at different depths in the kettle body.
7. The reactor for continuous lithium extraction according to any one of claims 1-6, characterized in that, The reaction kettle inflow pipe and the reaction liquid overflow pipe are connected with a reaction liquid overflow tank (2) outside the kettle body.
8. The reactor for continuous lithium extraction according to claim 7, characterized in that, Multiple reaction kettles are used in cascade, and the multiple reaction kettles are arranged from high to low, and multiple second electric control valves controlled by the controller are arranged on the reaction liquid overflow tank.