Settling tank and alumina treatment device

Abstract

The utility model discloses a settling tank and an aluminum oxide treatment device, and belongs to the technical field of settling equipment. The settling tank comprises a tank body, a frequency converter, a motor, a stirrer and a supporting part, wherein the supporting part penetrates through the top of the tank body, and two ends of the supporting part are fixed on the outer wall of the tank body; an input end of the frequency converter is electrically connected with a power supply, an output end of the frequency converter is electrically connected with a power supply end of the motor, an output shaft of the motor is mechanically connected with the stirrer, the motor is fixed on the supporting part, and the stirrer extends into the tank body. According to the settling tank, the frequency of the power supply connected to the input end is adjusted through the frequency converter, so that the working power supply frequency of the motor is adjusted, the rotating speed of the stirrer is controlled, the settling rate of materials in the tank body is adjusted through the rotating speed change of the stirrer, the settling rate is balanced, and the material separation effect is improved.

Description

Technical Field

[0001] This application relates to the field of settling equipment technology, and more particularly to a settling tank and an alumina treatment device. Background Technology

[0002] A settling tank is a gravity settling device used for solid-liquid separation, also known as a thickener or clarifier, used to increase the concentration of a suspension and simultaneously obtain a clarified liquid.

[0003] In existing technologies, alumina materials are separated into solid and liquid phases using settling tanks. However, the uneven settling rates of the materials during the separation process result in poor separation efficiency. Therefore, balancing the settling rates of the materials during the separation process is a pressing technical problem that needs to be solved. Utility Model Content

[0004] In view of the above problems, this application is made to provide a settling tank and alumina treatment device that solve the above problems. The settling tank includes a tank body, a frequency converter, a motor, an agitator, and a support. The frequency converter controls the rotation speed of the agitator, and the settling rate of the material in the tank is adjusted by the change of the agitator rotation speed, so that the settling rate is balanced and the separation effect of the material is improved.

[0005] In a first aspect, this application provides a settling tank, which includes a tank body, a frequency converter, a motor, a stirrer, and a support, wherein the support passes through the top of the tank body and is fixed at both ends to the outer wall of the tank body;

[0006] The input terminal of the frequency converter is electrically connected to the power supply, the output terminal of the frequency converter is electrically connected to the power supply terminal of the motor, the output shaft of the motor is mechanically connected to the agitator, the motor is fixed on the support, and the agitator extends into the tank.

[0007] Optionally, the number of motors may be multiple.

[0008] Optionally, the number of frequency converters is the same as the number of motors, and the frequency converters are electrically connected to the motors in a one-to-one correspondence.

[0009] Optionally, the motor is a geared motor.

[0010] Optionally, the settling tank further includes a controller, which is electrically connected to the frequency converter;

[0011] The controller is used to send control signals;

[0012] The frequency converter is used to change the frequency of the power supply connected to the input terminal when it receives a control signal sent by the controller, and output the power supply with the changed frequency to the motor through the output terminal.

[0013] Optionally, the settling tank further includes a speed proximity switch disposed at the end of the rotating shaft of the motor, the speed proximity switch being electrically connected to the controller.

[0014] Optionally, the frequency converter is a permanent magnet frequency converter.

[0015] Optionally, the support includes a horizontal bar, a first vertical bar, and a second vertical bar. The two ends of the horizontal bar are mechanically connected to one end of the first vertical bar and one end of the second vertical bar, respectively. The other ends of the first vertical bar and the second vertical bar are both fixed to the outer wall of the groove. The horizontal bar passes through the top of the groove.

[0016] Optionally, the bottom of the groove is conical.

[0017] Secondly, this application provides an alumina treatment apparatus, the apparatus including the settling tank described in the first aspect.

[0018] The technical solutions provided in this application embodiment have at least the following technical effects or advantages:

[0019] This application provides a settling tank, which includes a tank body, a frequency converter, a motor, an agitator, and a support. The support passes through the top of the tank body and is fixed at both ends to the outer wall of the tank body. The input end of the frequency converter is electrically connected to a power supply, and the output end of the frequency converter is electrically connected to the power supply of the motor. The output shaft of the motor is mechanically connected to the agitator. The motor is fixed to the support, and the agitator extends into the tank body. By adjusting the frequency of the power supply connected to its input end through the frequency converter, the operating power frequency of the motor is adjusted, thereby controlling the rotation speed of the agitator. The settling rate of the material in the tank body is adjusted by changing the rotation speed of the agitator, so that the settling rate is balanced and the separation effect of the material is improved.

[0020] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0021] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0022] Figure 1 This is a schematic diagram of a settling tank provided in an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the connection between a frequency converter and a motor provided in an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the connection between a speed-measuring proximity switch and a controller provided in an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the structure of a support provided in an embodiment of this application. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0027] The accompanying drawings illustrate various structural schematics according to embodiments of the present disclosure. These drawings are not to scale, and some details have been enlarged for clarity, and some details may have been omitted. The shapes of the various regions and layers shown in the drawings, as well as their relative sizes and positional relationships, are merely exemplary and may deviate from reality due to manufacturing tolerances or technical limitations. Furthermore, those skilled in the art can design regions / layers with different shapes, sizes, and relative positions as needed.

[0028] In the context of this disclosure, when a layer / component is referred to as being "above" another layer / component, that layer / component may be directly above the other layer / component, or there may be an intermediate layer / component between them. Additionally, if a layer / component is "above" another layer / component in one orientation, then when the orientation is reversed, that layer / component may be "below" the other layer / component. In the context of this disclosure, similar or identical components may be denoted by the same or similar reference numerals.

[0029] To better understand the above technical solutions, the following will describe the above technical solutions in detail with reference to specific implementation methods. It should be understood that the embodiments of this disclosure and the specific features in the embodiments are detailed descriptions of the technical solutions of this application, rather than limitations on the technical solutions of this application. In the absence of conflict, the embodiments of this application and the technical features in the embodiments can be combined with each other.

[0030] Figure 1 This is a schematic diagram of a settling tank provided in an embodiment of this application, as shown below. Figure 1As shown, the settling tank includes a tank body 1, a frequency converter 2, a motor 3, an agitator 4, and a support part 5. The support part 5 passes through the top of the tank body 1 and is fixed at both ends to the outer wall of the tank body 1. The input end of the frequency converter 2 is electrically connected to the power supply, and the output end of the frequency converter 2 is electrically connected to the power supply end of the motor 3. The output shaft of the motor 3 is mechanically connected to the agitator 4. The motor 3 is fixed on the support part 5, and the agitator 4 extends into the tank body 1.

[0031] The tank 1 is used to hold the material to be processed; the frequency converter 2 is used to adjust the frequency of the power supply connected to its input terminal and output the adjusted power supply to the motor 3 as the working power supply of the motor 3, that is, the working power supply of the motor 3 is adjusted by the frequency converter 2; when the output shaft of the motor 3 rotates, it will drive the agitator 4 to rotate, and the agitator 4 can agitate the material in the tank 1 after rotating; the support part 5 is used to support the motor 3.

[0032] In this embodiment, when performing solid-liquid separation on the material to be treated in the settling tank, the frequency of the power supply of the motor 3 can be adjusted by the frequency converter 2 according to the settling condition of the material, thereby adjusting the output torque of the motor 3. This changes the stirring speed of the agitator 4 driven by the motor 3, which in turn changes the stirring speed of the material, ultimately altering the settling rate of the material. By adjusting the stirring speed of the agitator 4, the settling rate of the material is balanced, improving the separation effect, increasing the separation yield, and improving the separation quality. The material to be treated can be alumina.

[0033] Optionally, inverter 2 is a permanent magnet inverter.

[0034] In this embodiment, a permanent magnet frequency converter enables high-precision torque control of the motor 3. This results in higher stability and control accuracy for the motor 3 during operation.

[0035] The frequency converter 2 can be placed in the control cabinet next to the tank 1, and the power supply connected to its input terminal can also be introduced from the control cabinet.

[0036] Optionally, the number of motors 3 can be multiple.

[0037] In this embodiment of the application, by setting multiple motors 3 to drive the stirrer 4 to rotate simultaneously, the stirrer 4 has a larger rotational torque, thereby bringing a better stirring effect.

[0038] For example, the number of motors 3 is 2-4.

[0039] Optionally, the motor is a geared motor.

[0040] In this embodiment, the geared motor refers to an integrated unit of a speed reducer and a motor. By providing a larger rotational torque to the agitator, the materials in the tank can be stirred more effectively.

[0041] Figure 2 This is a schematic diagram of the connection between a frequency converter and a motor provided in an embodiment of this application, as shown below. Figure 2 As shown, the number of frequency converters 2 is the same as the number of motors 3, and the frequency converters 2 and motors 3 are electrically connected in a one-to-one correspondence.

[0042] In this embodiment, one frequency converter 2 controls one motor 3, and the frequency of the working power supply output by all frequency converters 2 to the motor 3 is set to be the same, so that the output torque of all motors 3 is the same and the gear meshing between motors 3 is higher. This ensures that the stirrer 4 is subjected to balanced force during the adjustment of the stirring speed, is not easily damaged, and improves the efficiency of solid-liquid separation.

[0043] like Figure 2 As shown, one of the frequency converters 2 can be designated as the master frequency converter, and the others as slave frequency converters. Each slave frequency converter is electrically connected to the master frequency converter. The frequency at which the master frequency converter adjusts the power supply of the motor 3 will control the corresponding frequency at which the slave frequency converters adjust the power supply of the motor 3, ensuring that the frequency of the power supply output from all frequency converters 2 is the same, and that the output torque of all motors 3 is the same. This ensures that the agitator 4 is subjected to balanced force during the adjustment of the stirring speed, and that maximum torque can be achieved for heavy-load starting at zero speed.

[0044] Optionally, the settling tank also includes a controller, which is electrically connected to the frequency converter 2; the controller is used to send control signals; the frequency converter 2 is used to change the frequency of the power supply connected to the input terminal when it receives the control signal sent by the controller, and output the power supply with the changed frequency to the motor 3 through the output terminal.

[0045] In this embodiment, the frequency of the working power supply of the motor 3 can be adjusted automatically by the frequency converter 2 through the controller, or the frequency of the working power supply of the motor 3 can be adjusted manually by the frequency converter 2.

[0046] The specific process of automatically adjusting the frequency of the power supply to motor 3 by the controller through inverter 2 is as follows: When the user inputs the target speed of motor 3 to the controller, the controller generates a control signal and sends it to inverter 2. After receiving the control signal, inverter 2 adjusts the frequency of the power supply connected to the input terminal to the target frequency corresponding to the control signal, and outputs the power supply at the target frequency to motor 3 as the working power supply for motor 3. After the frequency of the working power supply of motor 3 becomes the target frequency, its output torque also becomes the target torque corresponding to the target frequency. Finally, driven by the target torque, the agitator 4 rotates at the target stirring speed, thereby adjusting the settling rate of the material in tank 1. Note that if the target speed changes, the corresponding control signal, target frequency, target torque, and target stirring speed will all change.

[0047] In this embodiment, the controller can send control signals only to the main inverter, which then forwards the control signals to other slave inverters. The main inverter and slave inverters can communicate via optical fiber.

[0048] The controller can be a DCS (Distributed Control System).

[0049] Figure 3 This is a schematic diagram of the connection between a speed-measuring proximity switch and a controller provided in an embodiment of this application, as shown below. Figure 3 As shown, the settling tank also includes a speed proximity switch 6, which is arranged at the end of the rotating shaft of the motor 3. The speed proximity switch 6 is electrically connected to the controller 7.

[0050] In this embodiment, the actual speed of the motor 3 is detected by the speed proximity switch 6 and sent to the controller 7. The controller 7 adjusts the speed of the motor 3 according to the difference between the target speed and the actual speed so that the actual speed of the motor 3 is closer to the target speed.

[0051] In this embodiment, the settling tank also includes an alarm, which is electrically connected to the controller. When the controller detects that the actual speed of the motor 3 exceeds the set speed threshold, it controls the alarm to sound, so as to detect the motor stalling in time and prevent equipment damage.

[0052] Figure 4 This is a schematic diagram of the structure of a support portion provided in an embodiment of this application, such as... Figure 4 As shown, the support part 5 includes a horizontal bar 51, a first vertical bar 52 and a second vertical bar 53. The two ends of the horizontal bar 51 are mechanically connected to one end of the first vertical bar 52 and one end of the second vertical bar 53, respectively. The other end of the first vertical bar 52 and the other end of the second vertical bar 53 are both fixed to the outer wall of the tank 1. The horizontal bar 51 passes through the top of the tank 1.

[0053] In this embodiment, to ensure the stability of the motor 3, the support part 5 can be designed as a crossbar 51, a first vertical bar 52, and a second vertical bar 53. The two ends of the crossbar 51 are mechanically connected to one end of the first vertical bar 52 and one end of the second vertical bar 53, forming a single unit. The other ends of the first vertical bar 52 and the second vertical bar 53 are fixed to the outer wall of the tank 1, making the entire support part 5 more stable. The crossbar 51 passes through the top of the tank 1, allowing the motor 3 to be fixed to it. The stirrer 4, connected to the motor 3, can extend into the tank 1 to stir the materials.

[0054] Optionally, the bottom of the tank 1 is conical.

[0055] In this embodiment, the conical design of the bottom of the tank 1 effectively promotes the natural sedimentation of suspended particles, allowing them to settle to the bottom of the tank more quickly. The conical structure increases the contact area between the particles and the water, thereby accelerating the settling speed.

[0056] Based on the same concept, this application also provides an alumina treatment apparatus, which includes the settling tank in the above embodiments.

[0057] The technical solutions described in the embodiments of this application have at least the following technical effects or advantages:

[0058] This application provides a settling tank, which includes a tank body, a frequency converter, a motor, an agitator, and a support. The support passes through the top of the tank body and is fixed at both ends to the outer wall of the tank body. The input end of the frequency converter is electrically connected to a power supply, and the output end of the frequency converter is electrically connected to the power supply of the motor. The output shaft of the motor is mechanically connected to the agitator. The motor is fixed to the support, and the agitator extends into the tank body. By adjusting the frequency of the power supply connected to its input end through the frequency converter, the operating power frequency of the motor is adjusted, thereby controlling the rotation speed of the agitator. The settling rate of the material in the tank body is adjusted by changing the rotation speed of the agitator, so that the settling rate is balanced and the separation effect of the material is improved.

[0059] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of this application may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0060] Similarly, it should be understood that, in order to simplify this disclosure and aid in understanding one or more of the various aspects of the application, in the above description of exemplary embodiments of the application, various features of the application are sometimes grouped together in a single embodiment, figure, or description thereof. However, the apparatus disclosed should not be construed as reflecting an intention that the claimed application requires more features than expressly recited in each claim. Rather, as reflected in the following claims, the application aspect comprises fewer than all features of a single foregoing disclosed embodiment. Therefore, the claims following the detailed description are hereby expressly incorporated into that detailed description, wherein each claim itself is a separate embodiment of the application.

[0061] It should be noted that the above embodiments are illustrative of this application and not limiting of it, and that those skilled in the art can devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses should not be construed as limiting the claims. The word "comprising" does not exclude the presence of components or steps not listed in the claims. The word "a" or "an" preceding a component does not exclude the presence of a plurality of such components. This application can be implemented by means of hardware comprising several different components and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by the same item of hardware. The use of the words first, second, and third, etc., does not indicate any order. These words can be interpreted as names.

Claims

1. A settling tank, characterized in that, The settling tank includes a tank body, a frequency converter, a motor, a stirrer, and a support. The support passes through the top of the tank body and is fixed at both ends to the outer wall of the tank body. The input terminal of the frequency converter is electrically connected to the power supply, the output terminal of the frequency converter is electrically connected to the power supply terminal of the motor, the output shaft of the motor is mechanically connected to the agitator, the motor is fixed on the support, and the agitator extends into the tank. The tank is used to hold the material to be processed; the frequency converter is used to adjust the frequency of the power supply connected to its input terminal and output the adjusted power supply to the motor; the motor is used to drive the agitator to rotate; the agitator is used to agitate the material in the tank; the support is used to support the motor. The settling tank also includes a controller, which is electrically connected to the frequency converter; The controller is used to send control signals; The inverter is used to adjust the frequency of the power supply connected to the input terminal to the target frequency corresponding to the control signal when it receives the control signal sent by the controller, and output the power supply at the target frequency to the motor, so that after the frequency of the motor's operating power supply becomes the target frequency, the output torque of the motor becomes the target torque corresponding to the target frequency. The agitator is used to rotate at a target stirring speed under the drive of the target torque, so as to adjust the settling rate of the material in the tank. The settling tank also includes a speed measuring proximity switch, which is arranged at the end of the rotating shaft of the motor, and the speed measuring proximity switch is electrically connected to the controller; The speed-measuring proximity switch is used to detect the actual speed of the motor and send the actual speed to the controller; The controller is also used to adjust the motor speed based on the difference between the target speed and the actual speed, so that the actual speed of the motor is closer to the target speed.

2. The settling tank according to claim 1, characterized in that, The number of motors is multiple.

3. The settling tank according to claim 2, characterized in that, The number of frequency converters is the same as the number of motors, and the frequency converters are electrically connected to the motors in a one-to-one correspondence.

4. The settling tank according to claim 1, characterized in that, The motor is a geared motor.

5. The settling tank according to claim 1, characterized in that, The frequency converter is a permanent magnet frequency converter.

6. The settling tank according to claim 1, characterized in that, The support includes a horizontal bar, a first vertical bar, and a second vertical bar. The two ends of the horizontal bar are mechanically connected to one end of the first vertical bar and one end of the second vertical bar, respectively. The other ends of the first vertical bar and the second vertical bar are fixed to the outer wall of the groove. The horizontal bar passes through the top of the groove.

7. The settling tank according to claim 1, characterized in that, The bottom of the trough is conical.

8. An alumina treatment apparatus, characterized in that, The device includes the settling tank as described in any one of claims 1-7.

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