Nickel carbonate stirred reaction kettle

Abstract

The utility model provides a kind of nickel carbonate stirring reaction kettle, including reactor body, the shaft is equipped in the reactor body, the middle part and the bottom of shaft are equipped with multiple stirring blades, the reactor body is equipped with effluent pipe, the inner end of effluent pipe is connected with detection tube, the detection tube is equipped with PH detection sensor, the PH detection sensor is connected with controller, the side of reactor body is equipped with acid liquid storage tank and lye storage tank, the acid liquid storage tank is connected with acid pipe, the lye storage tank is connected with alkali pipe, first metering pump is equipped on the acid pipe, second metering pump is equipped on the alkali pipe, the controller is connected with first metering pump and second metering pump respectively.The utility model sets up detection tube in reactor body and sets up PH detection sensor in detection tube, and the PH value of solution is detected in time, if PH value is not in set range, then input acid liquid or lye in reactor body controls solution PH value to maintain in set range.

Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment technology and relates to a nickel carbonate stirred reactor. Background Technology

[0002] The battery materials field is developing rapidly, and nickel carbonate, as a high-value-added nickel salt, is widely used in lithium battery cathode material precursors, electroplating catalysts, and ceramic pigments. The nickel carbonate precipitation reaction is highly sensitive to the pH value of the system; pH fluctuations will lead to crystal distortion, uneven particle size distribution, and increased entrainment of impurity ions. Therefore, in nickel carbonate stirred reactors, controlling the reaction pH is particularly important for product quality control. Currently, pH control in existing nickel carbonate reactors is quite difficult, and timely pH adjustments are not possible. Utility Model Content

[0003] The purpose of this invention is to address the problem of difficulty in adjusting the pH of the solution in existing nickel carbonate reactors, and to provide a nickel carbonate stirred reactor.

[0004] Therefore, the present invention adopts the following technical solution: A nickel carbonate stirred reactor includes a reactor body with a rotating shaft inside. The upper part of the rotating shaft extends from the top of the reactor body, and multiple stirring blades are provided in the middle and bottom of the rotating shaft. A liquid outlet pipe is provided inside the reactor body, extending from the side wall of the reactor body. A detection tube is connected to the inner end of the liquid outlet pipe, and a pH detection sensor is provided inside the detection tube. The pH detection sensor is connected to a controller. An acid storage tank and an alkali storage tank are provided on one side of the reactor body. An acid delivery pipe is connected to the acid storage tank, and an alkali delivery pipe is connected to the alkali storage tank. A first metering pump is provided on the acid delivery pipe, and a second metering pump is provided on the alkali delivery pipe. The controller is connected to the first metering pump and the second metering pump respectively.

[0005] Furthermore, the reactor body is provided with an overflow pipe, which extends from the top of the reactor body.

[0006] Furthermore, the reactor body is connected to a liquid inlet pipe.

[0007] Furthermore, the rotating shaft is vertically oriented.

[0008] Furthermore, a motor for driving the shaft to rotate is connected to the top end of the shaft.

[0009] Furthermore, the outlet pipe is equipped with a flow meter and a regulating valve, which are located outside the reactor body.

[0010] Furthermore, the detection tube is arranged vertically.

[0011] The beneficial effects of this utility model are as follows: a detection tube is set inside the reaction vessel and a pH detection sensor is installed inside the detection tube to detect the pH value of the solution in a timely manner. If the pH value is not within the set range, acid or alkali solution is introduced into the reaction vessel to control the pH value of the solution to be maintained within the set range. The effect is good; the structure is simple and the method of use is convenient. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a control principle diagram of the present invention; In the diagram, 1-reaction vessel body, 2-rotating shaft, 3-motor, 4-stirring blade, 5-liquid outlet pipe, 6-detection pipe, 7-pH detection sensor, 8-controller, 9-acid storage tank, 10-alkali storage tank, 11-acid transfer pipe, 12-alkali transfer pipe, 13-first metering pump, 14-second metering pump, 15-flow meter, 16-regulating valve, 17-liquid inlet pipe, 18-overflow pipe. Detailed Implementation

[0013] The present invention will now be described in detail with reference to the accompanying drawings: like Figure 1 and 2As shown, a nickel carbonate stirred reactor includes a reactor body 1. A vertically arranged rotating shaft 2 is installed inside the reactor body 1, with its upper part extending from the top of the reactor body 1. A motor 3 is connected to the top of the rotating shaft 2 to drive its rotation. Multiple stirring blades 4 are installed in the middle and bottom of the rotating shaft 2, rotating with it. The stirring blades 4 stir the nickel carbonate solution inside the reactor body 1. A liquid outlet pipe 5 is installed inside the reactor body 1, located at the top and extending from the side wall of the reactor body 1. The liquid outlet pipe 5 is used to discharge the stirred nickel carbonate solution from the reactor body 1. A vertically arranged detection pipe 6 is connected to the inner end of the liquid outlet pipe 5. The nickel carbonate solution inside the reactor body 1 enters the detection pipe 6 through its bottom end and, as the liquid level in the reactor body 1 rises, flows through the detection pipe 6 into the liquid outlet pipe 5 and is discharged. A pH sensor 7 is installed inside the detection pipe 6 to detect the pH value of the solution inside the reactor body 1. The detection sensor 7 is connected to the controller 8, which can be a conventional PLC controller. An acid storage tank 9 and an alkali storage tank 10 are located on one side of the reactor body 1. The acid storage tank 9 is connected to an acid delivery pipe 11, and the alkali storage tank 10 is connected to an alkali delivery pipe 12. A first metering pump 13 is installed on the acid delivery pipe 11, and a second metering pump 14 is installed on the alkali delivery pipe 12. The controller 8 is connected to the first metering pump 13 and the second metering pump 14 respectively. When the pH detection sensor 7 detects that the pH value of the solution in the reactor body 1 is too low, the controller 8 can control the second metering pump 14 to start, causing the alkali delivery pipe 12 to deliver an alkaline solution to the reactor body 1, thereby increasing the pH value of the solution in the reactor body 1. Similarly, when the pH detection sensor 7 detects that the pH value of the solution in the reactor body 1 is too high, the controller 8 controls the first metering pump 13 to start, causing the acid delivery pipe 11 to deliver an acidic solution to the reactor body 1, thereby decreasing the pH value of the solution in the reactor body 1, thus maintaining the pH value of the solution in the reactor body 1 within the set range.

[0014] The outlet pipe 5 is also equipped with a flow meter 15 and a regulating valve 16. The flow meter 15 and the regulating valve 16 are located outside the reactor body 1. The outlet pipe 5 is used to measure the amount of solution output. The regulating valve 16 adjusts the output amount of solution according to the demand. The side wall of the reactor body 1 is connected to an inlet pipe 17 for inputting solution into the reactor body 1. An overflow pipe 18 is provided inside the reactor body 1. The overflow pipe 18 extends from the top of the reactor body 1.

[0015] An overflow pipe 18 is also connected to the top of the reactor body 1.

[0016] The method of using this utility model is as follows: First, the solution is introduced into the reactor body 1 through the inlet pipe 17. The motor 3 is started to drive the rotating shaft 2 and the stirring blades 4 to rotate, stirring the solution in the reactor body 1. As the liquid level in the reactor body 1 rises, the solution enters the detection pipe 6 from the bottom and then enters the outlet pipe 5, from which it is discharged to subsequent equipment for use. During this process, the pH sensor 7 detects the pH value of the solution in the detection pipe 6. If the pH value of the solution in the reactor body 1 is lower than the set value, the pH sensor 7 sends a signal to the controller 8. The controller 8 controls the second metering pump 14 to start, so that the alkali delivery pipe 12 delivers alkaline solution to the reactor body 1, raising the pH value of the solution in time. If the pH value of the solution in the reactor body 1 is higher than the set value, the pH sensor 7 sends a signal to the controller 8. The controller 8 controls the first metering pump 13 to start, so that the acid delivery pipe 11 delivers acidic solution to the reactor body 1, lowering the pH value of the solution in time, so that the pH value of the solution discharged from the outlet pipe 5 is within the set range for use in subsequent equipment.

Claims

1. A nickel carbonate stirred reactor, characterized in that, The reactor includes a reaction vessel body (1), inside which is a rotating shaft (2). The upper part of the rotating shaft (2) extends from the top of the reaction vessel body (1), and the middle and bottom of the rotating shaft (2) are provided with multiple stirring blades (4). Inside the reaction vessel body (1) is a liquid outlet pipe (5), which extends from the side wall of the reaction vessel body (1). The inner end of the liquid outlet pipe (5) is connected to a detection pipe (6), and the detection pipe (6) is provided with a pH detection sensor (7). The sensor (7) is connected to the controller (8). An acid storage tank (9) and an alkali storage tank (10) are provided on one side of the reactor body (1). The acid storage tank (9) is connected to an acid delivery pipe (11), and the alkali storage tank (10) is connected to an alkali delivery pipe (12). A first metering pump (13) is provided on the acid delivery pipe (11), and a second metering pump (14) is provided on the alkali delivery pipe (12). The controller (8) is connected to the first metering pump (13) and the second metering pump (14) respectively.

2. The nickel carbonate stirred reactor according to claim 1, characterized in that, The reactor body (1) is provided with an overflow pipe (18), which extends from the top of the reactor body (1).

3. The nickel carbonate stirred reactor according to claim 1, characterized in that, The reactor body (1) is connected to a liquid inlet pipe (17).

4. The nickel carbonate stirred reactor according to claim 1, characterized in that, The rotating shaft (2) is set vertically.

5. A nickel carbonate stirred reactor according to claim 1, characterized in that, The top end of the shaft (2) is connected to a motor (3) for driving the shaft (2) to rotate.

6. The nickel carbonate stirred reactor according to claim 1, characterized in that, The outlet pipe (5) is equipped with a flow meter (15) and a regulating valve (16), which are located outside the reactor body (1).

7. The nickel carbonate stirred reactor according to claim 1, characterized in that, The detection tube (6) is set vertically.

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