Efficient reaction kettle for purifying lithium carbonate

Abstract

The utility model discloses an efficient reaction kettle for purifying lithium carbonate, and relates to the technical field of lithium carbonate purification. The reaction kettle comprises a kettle body, a screw rod and a scraping shaft which are vertically arranged are arranged in the kettle body, the upper end part of the scraping shaft is fixedly connected with the surface wall of the screw rod through a connecting piece, blades of the scraping shaft are connected with the inner wall of the kettle body, an inner cavity is formed in the inner wall of the kettle body, a spiral pipe is arranged on the inner wall of the inner cavity, and a flowing hole is formed in the lower end surface of the screw rod. And a gas disperser communicated with the flowing hole is fixed on the lower end surface of the screw rod. According to the utility model, the scraping shaft and the screw rod are used for synchronously stirring mixed liquid in the kettle body, so that reactants are mixed more uniformly, and meanwhile, the circulating holes are matched with the gas distributor for use, so that carbon dioxide and the mixed liquid are in faster and more sufficient contact, and the reaction efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to lithium carbonate purification technical field, especially relate to a high -efficient reation kettle for lithium carbonate purification. BACKGROUND

[0002] Lithium carbonate plays a key role in battery, ceramics, glass, medicine, refrigeration and new energy storage and other industries as a basic raw material, lithium carbonate is subdivided into industrial grade, battery grade and high purity grade, among which battery grade lithium carbonate is the core raw material of lithium ion battery positive material and electrolyte additive. With the rapid development of electronic and new energy vehicle industry, the demand for lithium ion battery is increasing, which in turn promotes the continuous prosperity of battery grade lithium carbonate market, and in the purification process of lithium carbonate, lithium carbonate mixed solution is introduced into the reaction kettle for reaction.

[0003] But the reaction kettle used at present is mostly single shaft stirring, which needs more time for stirring in actual operation process to make the reactants react fully, and the efficiency is not high, and the carbon dioxide gas used for purification cannot be directly introduced into the bottom of the reaction kettle, so the reaction efficiency cannot be improved. Therefore, we provide a high -efficient reation kettle for lithium carbonate purification to solve the above problems. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of high -efficient reation kettle for lithium carbonate purification, by scraping shaft and screw rod two shafts synchronous stirring to mixed liquid inside kettle body, make reactant mixing more evenly, simultaneously, the use of cooperation of flow hole and gas distributor, make carbon dioxide and mixed liquid faster and more fully contact, improve reaction efficiency.

[0005] To solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model discloses a kind of high -efficient reation kettle for lithium carbonate purification, including kettle body;Kettle body has the vertically arranged screw rod and scraping shaft in the inside, the upper end of scraping shaft is fixedly connected with the surface wall of screw rod by connecting piece, the blade of scraping shaft is connected with the inner wall of kettle body, the inner wall of kettle body is equipped with inner cavity, is equipped with spiral pipe in the inner wall of inner cavity, the lower end surface of screw rod is equipped with flow hole, and the lower end surface of screw rod is fixed with the gas disperser that is connected with flow hole.

[0007] The utility model further is provided, and kettle cover is bolted to the upper end surface of kettle body, motor is fixed to the upper end surface of kettle cover outer wall, and the upper end surface of screw rod passes through kettle cover and is fixedly connected with motor rotating shaft end.

[0008] The utility model further is provided, and multiple cleaning spray heads are arranged in the inside of kettle cover and are evenly arranged along screw rod, and the pipeline of cleaning spray head passes through the side wall of kettle cover.

[0009] The utility model further sets up, the surface wall of the kettle cover is fixed with the feeding pipeline that is connected with its inside, the lower part of the kettle body outer wall is fixed with the discharge pipeline that is connected with its inside.

[0010] The utility model further sets up, the surface side of the screw rod above the scraping shaft is equipped with the sleeve, and the upper and lower ports of the sleeve are rotationally sealed with the screw rod.

[0011] The utility model further sets up, the surface side of the screw rod in the sleeve is equipped with the through hole that is connected with the inside of the flow hole, the surface wall of the sleeve is fixed with the air inlet hose that is connected with its inside, and the other end of the air inlet hose passes through the surface wall of the kettle cover.

[0012] The utility model has the advantages of:

[0013] The motor controls the rotation of the screw rod, and the screw rod synchronously drives the scraping shaft to rotate in the inside of the kettle body, and the mixed liquid in the inside of the kettle body is stirred by the two shafts of the screw rod and the scraping shaft, so that the lithium carbonate and water can be better stirred, the two are fully contacted, the reactants are more evenly mixed, and the reaction is facilitated.

[0014] The outside carbon dioxide source is connected with the inside of the flow hole, and the carbon dioxide enters the gas disperser from the flow hole, is distributed into the kettle body by the gas disperser, flows upwards from the bottom of the kettle body, and makes the gaseous carbon dioxide contact with the solid lithium carbonate and the liquid water more quickly and fully, so that the reaction efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0016] Figure 1 It is the structure schematic diagram in the utility model.

[0017] Figure 2 It is the overall structure section view of the utility model.

[0018] Figure 3 It is the structure combination view of the screw rod in the utility model.

[0019] Figure 4 It is the structure explosion view of the screw rod in the utility model.

[0020] Figure 5 It is the overall structure appearance display view of the utility model.

[0021] In the drawings, the components represented by the respective reference numerals are listed as follows:

[0022] 1 - kettle body, 101 - inner cavity, 102 - discharge pipeline, 2 - kettle cover, 201 - feeding pipeline, 202 - cleaning nozzle, 3 - screw rod, 301 - flow hole, 302 - gas distributor, 303 - sleeve, 304 - air inlet hose, 305 - through hole, 4 - spiral pipe, 5 - scraping shaft. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Embodiment 1

[0024] Please refer to Figures 1 to 5 The present application is a kind of high efficiency reaction kettle for lithium carbonate purification, through the synchronous stirring of two shafts of scraping shaft 5 and screw rod 3 to the mixed liquid inside kettle body 1, make the reaction mixture more uniform, at the same time, the cooperation use of through hole 305 and gas distributor makes carbon dioxide and mixed liquid contact faster and more fully, improves the reaction efficiency.

[0025] Specifically, kettle body 1;Kettle body 1 has a vertical screw rod 3 and a scraping shaft 5 in the inside, the upper end of scraping shaft 5 is fixedly connected with the surface wall of screw rod 3 through a connecting piece, the blade of scraping shaft 5 is connected with the inner wall of kettle body 1, the inner wall of kettle body 1 is provided with an inner cavity 101, the inner wall of inner cavity 101 is provided with a spiral pipe 4, the lower end surface of screw rod 3 is provided with a flow hole 301, the lower end surface of screw rod 3 is fixedly connected with a gas distributor 302 communicated with flow hole 301, the upper end surface of kettle body 1 is bolted with kettle cover 2, the upper end surface of the outer wall of kettle cover 2 is fixedly connected with motor, the upper end surface of screw rod 3 passes through kettle cover 2 and is fixedly connected with the shaft end of motor, the surface wall of kettle cover 2 is fixedly connected with feeding pipeline 201 communicated with the inside thereof, the lower part of the outer wall of kettle body 1 is fixedly connected with discharge pipeline 102 communicated with the inside thereof.

[0026] The operation process of the embodiment is: pour lithium carbonate and water into the kettle body 1, mix them thoroughly, and rotate the screw rod 3 by motor control, so that the screw rod 3 synchronously drives the scraping shaft 5 to rotate in the interior of the kettle body 1. The mixture in the kettle body 1 is stirred by the screw rod 3 and the scraping shaft 5, which can better stir the lithium carbonate and water, make them fully contact, make the reactant mixture more uniform, and be beneficial to the reaction. At the same time, the external carbon dioxide gas source is connected with the interior of the flow hole 301, so that the carbon dioxide enters the gas disperser 302 from the flow hole 301, is distributed into the kettle body 1 by the gas disperser, and flows upward from the bottom of the kettle body 1, so that the gaseous carbon dioxide can more quickly and fully contact with the solid lithium carbonate and the liquid water, thereby improving the reaction efficiency.

[0027] The used spiral pipe 4 is connected with an external compressor, so that the spiral pipe 4 forms a loop with the external equipment, and the circulation of the condensed gas in the spiral pipe 4 is controlled, so that the temperature state in the interior of the kettle body 1 can be controlled. At the same time, in the rotating process of the scraping shaft 5, the scraping shaft 5 drives the blade to scrape off the dirt on the inner wall of the kettle body 1, so as to avoid the dirt remaining on the inner wall of the kettle body 1. At the same time, when the mixed liquid in the interior of the kettle body 1 is discharged, the electromagnetic valve on the discharge pipeline 102 is opened, so that the mixed liquid in the interior of the kettle body 1 can be discharged in the discharge pipeline 102.

[0028] It should be noted that sensors, pH sensors, temperature sensors and pressure sensors are installed in the reaction kettle. These sensors monitor the pH value, temperature and pressure key parameters in the reaction system in real time. Through the data acquisition system, these parameters are transmitted to the control system in real time, so as to timely understand the reaction process and state, and connect multiple sensors with the external control center, so as to real-time receive the data detected by the sensors. Embodiment 2

[0029] Please refer to Figure 2 On the basis of embodiment 1, multiple cleaning nozzles 202 are used to flush the inner wall of the kettle body 1, thereby improving the cleaning efficiency.

[0030] Specifically, the interior of the kettle cover 2 is provided with multiple cleaning nozzles 202 which are uniformly arranged along the screw rod 3, and the pipeline of the cleaning nozzle 202 passes through the side wall of the kettle cover 2.

[0031] The operation process of the embodiment is: connecting the cleaning nozzle 202 with the water pump in the external water tank, so that when the interior of the kettle body 1 is flushed, the cleaning nozzle 202 can be used to flush the inner wall of the kettle body 1. Embodiment 3

[0032] Please refer to Figure 3 and 4On the basis of embodiment 1, the rotation of the screw rod 3 is ensured by the rotation sealing cooperation between the sleeve 303 and the screw rod 3.

[0033] Specifically, the sleeve 303 is sleeved on the surface of the screw rod 3 above the scraping shaft 5, the upper and lower ends of the sleeve 303 are rotationally sealed with the screw rod 3, the surface of the screw rod 3 inside the sleeve 303 is provided with a through hole 305 connected with the inside of the flow hole 301, the surface wall of the sleeve 303 is fixed with an air inlet hose 304 connected with the inside of the sleeve 303, and the other end of the air inlet hose 304 passes through the surface wall of the kettle cover 2.

[0034] The operation process of the embodiment is as follows: the air inlet hose 304 is connected with the external carbon dioxide gas source device, so that the gas source device can guide the carbon dioxide into the air inlet hose 304, and then into the flow hole 301 through the through hole 305, the sleeve 303 and the screw rod 3 can rotate, so that the screw rod 3 will not rotate the sleeve 303 when rotating, and the air inlet hose 304 will not be excessively twisted.

[0035] In the description of the specification, the description of the terms "one embodiment", "example", "specific example" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details, nor limit the utility model to the specific embodiments described. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and specifically describes these embodiments in order to better explain the principles and practical application of the utility model, so that the persons skilled in the art can well understand and utilize the utility model. The utility model is limited by the claims and the whole scope and equivalents thereof.

Claims

1. A high-efficiency reaction vessel for lithium carbonate purification, comprising a vessel body (1); characterized in that: The vessel body (1) has a vertically arranged spiral rod (3) and scraper shaft (5) inside. The upper end of the scraper shaft (5) is fixedly connected to the outer wall of the spiral rod (3) through a connector. The blades of the scraper shaft (5) are connected to the inner wall of the vessel body (1). The inner wall of the vessel body (1) has an inner cavity (101). A spiral tube (4) is provided on the inner wall of the inner cavity (101). A flow hole (301) is provided on the lower end face of the spiral rod (3). A gas disperser (302) connected to the flow hole (301) is fixed on the lower end face of the spiral rod (3).

2. The high-efficiency reaction vessel for lithium carbonate purification according to claim 1, characterized in that, The upper end face of the vessel body (1) is bolted to the vessel lid (2), and the upper end face of the outer wall of the vessel lid (2) is fixed with a motor. The upper end face of the screw rod (3) passes through the vessel lid (2) and is fixedly connected to the motor shaft end.

3. The high-efficiency reaction vessel for lithium carbonate purification according to claim 2, characterized in that, The inside of the lid (2) is provided with a plurality of cleaning nozzles (202) evenly distributed along the spiral rod (3), and the pipes of the cleaning nozzles (202) pass through the side wall of the lid (2).

4. The high-efficiency reaction vessel for lithium carbonate purification according to claim 3, characterized in that, The outer wall of the lid (2) is fixed with a feed pipe (201) that communicates with its interior, and the lower part of the outer wall of the body (1) is fixed with a discharge pipe (102) that communicates with its interior.

5. The high-efficiency reaction vessel for lithium carbonate purification according to claim 1, characterized in that, A sleeve (303) is fitted on the surface of the spiral rod (3) located above the scraping shaft (5), and the upper and lower ports of the sleeve (303) are rotatably sealed with the spiral rod (3).

6. The high-efficiency reaction vessel for lithium carbonate purification according to claim 5, characterized in that, The spiral rod (3) located inside the sleeve (303) has a through hole (305) on its surface that communicates with the inside of the flow hole (301). The sleeve (303) has an air inlet hose (304) that communicates with its interior, and the other end of the air inlet hose (304) passes through the surface of the lid (2).

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