Continuous device for chemical calcium removal of leachate

Abstract

The utility model discloses a continuous device for chemical calcium removal of leachate, which comprises a reaction kettle, a first tank body and a second tank body, the first tank body is used for storing a sodium carbonate solution, the leachate is stored in the second tank body, the first tank body is communicated with the reaction kettle through a first pipeline, and the second tank body is communicated with the reaction kettle through a second pipeline. The first tank body is communicated with the reaction kettle through a first pipeline, the second tank body is communicated with the reaction kettle through a second pipeline, a first electromagnetic valve is arranged on the first pipeline and used for controlling the adding speed of a sodium carbonate solution in the first pipeline into the reaction kettle, and a second electromagnetic valve is arranged on the second pipeline and used for controlling the adding speed of the sodium carbonate solution in the reaction kettle. The second electromagnetic valve is used for controlling the adding speed of the leachate in the second pipeline into the reaction kettle, and a stirring mechanism is arranged on the reaction kettle. According to the utility model, the leach liquor is subjected to chemical calcium removal in a continuous manner, so that the chemical calcium removal speed and the equipment utilization rate are greatly improved, and the time and the cost are saved.

Description

Technical Field

[0001] The utility model relates to the field of lepidolite extraction technology and equipment, in particular to a continuous device for chemically removing calcium from a leaching solution. Background Art

[0002] In the traditional process of extracting lepidolite, the chemical decalcification method of the leachate is a single-pot reaction using an intermittent chemical precipitation method, which not only has a long reaction time and cumbersome operation, but also has low equipment utilization. Utility Model Content

[0003] The purpose of the utility model is to solve the above technical problems, thereby providing a continuous device for chemical decalcification of leaching liquid;

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] The utility model provides a continuous device for chemically removing calcium from a leaching solution.

[0006] The invention comprises a reactor, a first tank body and a second tank body, wherein the first tank body is used to store a sodium carbonate solution, and the second tank body is used to store a leachate. The first tank body is connected to the reactor through a first pipeline, and the second tank body is connected to the reactor through a second pipeline. A first solenoid valve is arranged on the first pipeline, and the first solenoid valve is used to control the speed at which the sodium carbonate solution in the first pipeline is introduced into the reactor. A second solenoid valve is arranged on the second pipeline, and the second solenoid valve is used to control the speed at which the leachate in the second pipeline is introduced into the reactor. The reactor is provided with a stirring mechanism.

[0007] Optionally, the stirring mechanism includes a motor, a stirring shaft, and stirring blades. The motor is arranged at the upper end of the reactor, the upper end of the stirring shaft passes through the upper side wall of the reactor and is connected to the output shaft of the motor, and the side wall of the stirring shaft located in the reactor is provided with the stirring blades. The motor is used to drive the stirring shaft to rotate, thereby driving the stirring blades to rotate synchronously.

[0008] Optionally, the stirring blades are arranged in a plurality of groups, and the plurality of groups of stirring blades are arranged in sequence and spaced apart from top to bottom.

[0009] Optionally, a liquid outlet is provided at the lower end of the reactor, and the liquid outlet is connected to a third tank body through a third pipeline. A third solenoid valve is provided on the third pipeline. The third solenoid valve is used to control the flow rate of the decalcified leachate in the reactor into the third tank body, and the third tank body is used to store the decalcified leachate.

[0010] Optionally, a sediment discharge outlet is also provided at the lower end of the reactor, and the sediment discharge outlet is connected to a fourth tank body through a fourth pipeline. A fourth solenoid valve is provided on the fourth pipeline. The fourth solenoid valve is used to control the flow of the sediment in the reactor into the fourth tank body, and the fourth tank body is used to collect the sediment.

[0011] Optionally, a gas outlet is provided at the upper end of the reactor, and the gas outlet is connected to a gas storage tank through a fifth pipeline, and the gas storage tank is used to collect gas.

[0012] Optionally, a temperature sensor is provided on the outer wall of the reactor, and the temperature sensor is used to detect the reaction temperature in the reactor and transmit the temperature signal to the controller. The controller adjusts the switching states of the first solenoid valve, the second solenoid valve, the third solenoid valve, and the fourth solenoid valve according to the temperature signal to keep the reaction temperature in the reactor within a preset range.

[0013] Beneficial effects of the utility model

[0014] The utility model adopts a continuous method to chemically decalcify the leaching liquid, which greatly improves the speed of chemical decalcification and equipment utilization, saves time and cost; a stirring mechanism is used to stir the liquid and precipitate in the reaction kettle to make the reaction more complete, while preventing the precipitate from being deposited at the bottom of the reaction kettle, thereby improving the effect and quality of the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the front view of the structure of the utility model.

[0016] Figure 2 This is a cross-sectional view of the reactor structure of the utility model.

[0017] Explanation of the accompanying drawings: 1-reactor, 2-first tank body, 3-second tank body, 4-first pipeline, 5-second pipeline, 6-first solenoid valve, 7-second solenoid valve, 8-motor, 9-stirring shaft, 10-stirring blade, 11-third pipeline, 12-third tank body, 13-third solenoid valve, 14-fourth pipeline, 15-fourth tank body, 16-fourth solenoid valve, 17-fifth pipeline, 18-temperature sensor. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] Example

[0020] like Figure 1-Figure 2 As shown, the utility model provides a continuous device for chemically removing calcium from a leaching solution.

[0021] The invention comprises a reactor 1, a first tank body 2 and a second tank body 3, wherein the first tank body 2 is used to store a sodium carbonate solution, and the second tank body 3 stores a leachate. The first tank body 2 is connected to the reactor 1 through a first pipeline 4, and the second tank body 3 is connected to the reactor 1 through a second pipeline 5. The first pipeline 4 is provided with a first solenoid valve 6, and the first solenoid valve 6 is used to control the addition speed of the sodium carbonate solution in the first pipeline 4 into the reactor 1. The second pipeline 5 is provided with a second solenoid valve 7, and the second solenoid valve 7 is used to control the addition speed of the leachate in the second pipeline 5 into the reactor 1. The reactor 1 is provided with a stirring mechanism.

[0022] The stirring mechanism includes a motor 8, a stirring shaft 9, and a stirring blade 10. The motor 8 is arranged at the upper end of the reactor 1. The upper end of the stirring shaft 9 penetrates the upper end side wall of the reactor 1 and is connected to the output shaft of the motor 8. The side wall of the stirring shaft 9 located in the reactor 1 is provided with the stirring blade 10. The motor 8 is used to drive the stirring shaft 9 to rotate, thereby driving the stirring blade 10 to rotate synchronously. The stirring blade 10 is arranged in a plurality of groups, and the plurality of groups of stirring blades 10 are arranged in sequence from top to bottom;

[0023] The lower end of the reactor 1 is provided with a liquid outlet, and the liquid outlet is connected to the third tank body 12 through a third pipeline 11. The third pipeline 11 is provided with a third solenoid valve 13, and the third solenoid valve 13 is used to control the flow rate of the decalcified leachate in the reactor 1 into the third tank body 12, and the third tank body 12 is used to store the decalcified leachate;

[0024] The lower end of the reactor 1 is also provided with a sediment discharge port, which is connected to a fourth tank body 15 through a fourth pipeline 14. A fourth solenoid valve 16 is provided on the fourth pipeline 14. The fourth solenoid valve 16 is used to control the flow rate of the sediment in the reactor 1 into the fourth tank body 15. The fourth tank body 15 is used to collect the sediment;

[0025] The upper end of the reactor 1 is provided with a gas outlet, and the gas outlet is connected to a gas storage tank through a fifth pipeline 17, and the gas storage tank is used to collect gas;

[0026] The outer wall of the reactor 1 is provided with a temperature sensor, which is used to detect the reaction temperature in the reactor 1 and transmit the temperature signal to the controller, and the controller adjusts the switch states of the first solenoid valve 6, the second solenoid valve 7, the third solenoid valve 13, and the fourth solenoid valve 16 according to the temperature signal to keep the reaction temperature in the reactor 1 within a preset range;

[0027] During use, the utility model delivers the sodium carbonate solution from the first tank body 2 to the reactor 1 through the first pipeline 4, and at the same time delivers the leachate from the second tank body 3 to the reactor 1 through the second pipeline 5, and controls the addition speed of the two to keep the liquid in the reactor 1 at a certain liquid level and concentration;

[0028] In the reactor 1, the sodium carbonate solution and the leachate react chemically to generate calcium bicarbonate and gas, and the gas is discharged from the gas outlet at the upper end of the reactor 1 through the fifth pipeline 17 to the gas storage tank, and the calcium bicarbonate exists in the liquid in the reactor 1 in the form of a precipitate;

[0029] In the reactor 1, the stirring mechanism continuously stirs the liquid and the precipitate to make the reaction more complete and prevent the precipitate from settling at the bottom of the reactor 1. The stirring mechanism is composed of a motor 8, a stirring shaft 9 and a stirring blade 10. The motor 8 drives the stirring shaft 9 to rotate. The stirring shaft 9 is provided with a plurality of groups of stirring blades 10. The stirring blades 10 are arranged in sequence from top to bottom to increase the stirring effect.

[0030] At the lower end of the reactor 1, a liquid outlet and a sediment outlet are provided. The liquid outlet is connected to the third tank body 12 through a third pipeline 11, and the sediment outlet is connected to the fourth tank body 15 through a fourth pipeline 14, so as to control the discharge flow of the decalcified leaching liquid and the sediment respectively, so that the liquid in the reactor 1 is maintained at a certain liquid level and concentration;

[0031] A temperature sensor 18 is provided on the outer wall of the reactor 1. The temperature sensor 18 detects the reaction temperature in the reactor 1 and transmits the temperature signal to the controller. The controller adjusts the switching states of the first solenoid valve 6, the second solenoid valve 7, the third solenoid valve 13, and the fourth solenoid valve 16 according to the temperature signal to keep the reaction temperature in the reactor 1 within a preset range.

[0032] Through the above steps, a continuous device for chemical decalcification of the leaching solution is realized, and the efficiency of chemical decalcification and equipment utilization are improved;

[0033] The utility model adopts a continuous method to chemically decalcify the leaching liquid, which greatly improves the speed of chemical decalcification and equipment utilization, saves time and cost; adopts a stirring mechanism to stir the liquid and precipitate in the reactor 1, so that the reaction is more complete, and at the same time prevents the precipitate from being deposited at the bottom of the reactor 1, thereby improving the effect and quality of the reaction;

[0034] The utility model adopts the temperature sensor 18 and the controller to monitor and adjust the reaction temperature in the reactor 1, so as to keep the reaction temperature within a preset range and avoid the reaction temperature being too high or too low to affect the progress and result of the reaction.

[0035] The utility model adopts a gas storage tank, a third tank body 12 and a fourth tank body 15 to collect and separate the gas generated by the reaction, the leaching liquid and the precipitate after decalcification, so as to facilitate subsequent processing and utilization.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made 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 continuous device for chemical decalcification of leachate, characterized in that: The invention comprises a reactor, a first tank body and a second tank body, wherein the first tank body is used to store a sodium carbonate solution, and the second tank body is used to store a leachate. The first tank body is connected to the reactor through a first pipeline, and the second tank body is connected to the reactor through a second pipeline. A first solenoid valve is arranged on the first pipeline, and the first solenoid valve is used to control the speed at which the sodium carbonate solution in the first pipeline is introduced into the reactor. A second solenoid valve is arranged on the second pipeline, and the second solenoid valve is used to control the speed at which the leachate in the second pipeline is introduced into the reactor. The reactor is provided with a stirring mechanism.

2. A continuous device for chemical decalcification of leachate according to claim 1, characterized in that: The stirring mechanism includes a motor, a stirring shaft, and stirring blades. The motor is arranged at the upper end of the reactor. The upper end of the stirring shaft passes through the upper end side wall of the reactor and is connected to the output shaft of the motor. The side wall of the stirring shaft located in the reactor is provided with the stirring blades. The motor is used to drive the stirring shaft to rotate, thereby driving the stirring blades to rotate synchronously.

3. A continuous device for chemical decalcification of leachate according to claim 2, characterized in that: The stirring blades are arranged in a plurality of groups, and the plurality of groups of stirring blades are arranged in sequence from top to bottom.

4. A continuous device for chemical decalcification of leachate according to claim 1, characterized in that: A liquid outlet is provided at the lower end of the reactor, and the liquid outlet is connected to the third tank body through a third pipeline. A third solenoid valve is provided on the third pipeline. The third solenoid valve is used to control the flow rate of the decalcified leachate in the reactor into the third tank body. The third tank body is used to store the decalcified leachate.

5. A continuous device for chemical decalcification of leachate according to claim 4, characterized in that: The lower end of the reactor is also provided with a sediment discharge outlet, and the sediment discharge outlet is connected to the fourth tank body through a fourth pipeline. The fourth pipeline is provided with a fourth solenoid valve, and the fourth solenoid valve is used to control the flow of the sediment in the reactor into the fourth tank body, and the fourth tank body is used to collect the sediment.

6. A continuous device for chemical decalcification of leachate according to claim 1, characterized in that: A gas outlet is provided at the upper end of the reactor, and the gas outlet is connected to a gas storage tank through a fifth pipeline, and the gas storage tank is used to collect gas.

7. A continuous device for chemical decalcification of leachate according to claim 5, characterized in that: A temperature sensor is provided on the outer wall of the reactor, and the temperature sensor is used to detect the reaction temperature in the reactor and transmit the temperature signal to the controller. The controller adjusts the switching states of the first solenoid valve, the second solenoid valve, the third solenoid valve, and the fourth solenoid valve according to the temperature signal to keep the reaction temperature in the reactor within a preset range.

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