Device and method for on-line detection of reagent dosage in beneficiation production process

Abstract

The application discloses a kind of flotation reagent technical field's device and method for on-line detection reagent dosage in mineral processing production process, including mobile terminal, controller and mixing box, mobile terminal is electrically connected with controller;Several reagent storage tanks are fixedly connected at the top of mixing box;The top of reagent storage tank is fixedly connected with transition box;Water pump is communicated at the top of transition box;The connecting portion of transition box and reagent storage tank is equipped with measuring assembly for measuring reagent flow;First, according to the composition of mineral processing mineral composition and total amount, the kind and matching parameter of reagent are determined;Second, the amount of liquid medicine passing through an electromagnetic valve per minute is detected according to flowmeter, and the opening time of an electromagnetic valve is controlled based on the matching parameter of reagent and detection information;Then, whether the volume of reagent in reagent storage tank meets the standard is judged based on the current value of current output by sliding rheostat and the matching parameter of reagent;Finally, compressed gas is used to push reagent, power is provided to reagent, and reagent is transported into mixing box for stirring and mixing.

Description

Technical Field

[0001] This invention belongs to the field of flotation reagent technology, specifically a device and method for online detection of reagent dosage in mineral processing. Background Technology

[0002] In the flotation process of both metallic and nonmetallic mineral processing, it is essential to monitor the dosage of flotation reagents in a timely manner to control the separation process and achieve optimal separation parameters. This is especially true for flotation processes using a combination of reagents, where the control of the dosage of each reagent is even more stringent. Currently, widely used reagent dosing methods include automatic dosing machines and manual dosing. Automatic dosing machines offer advantages such as timeliness, accuracy, and a high degree of automation. However, existing online detection devices for coal mine flotation reagent dosage are cumbersome to use and have low utilization rates. Therefore, a simple and practical online measurement device is needed to ensure smooth online measurement.

[0003] To address the aforementioned issues, Chinese Patent Publication No. CN 215573235 U discloses an online detection device for coal mine flotation reagent dosage. The device includes a storage tank, a tank cover, a first connector, bolts, an ultrasonic level sensor, a control panel, a display, a reagent pump, a flow monitor, a microprocessor, and a storage module. The storage tank has a first connector, a tank cover at its top, a second connector at its bottom, and an ultrasonic level sensor at the top inside the tank cover. A reagent guide pipe is located on the right side of the bottom of the storage tank. The reagent pump draws reagent from the storage tank through the guide pipe. As the reagent passes through the guide pipe, a flow monitor on the guide pipe monitors the outflowing reagent and transmits the value to the microprocessor via an electrical connection. The microprocessor then calculates the value and transmits it to the display for real-time observation.

[0004] Since mixing different reagents in proportion is often more effective than using any one reagent alone, the above-mentioned device has a reagent storage tank. When multiple reagents need to be mixed, the different reagents must be prepared in advance and then mixed, which is not convenient to use. Therefore, it is necessary to propose a device and method for online detection of reagent dosage in the mineral processing production process. Summary of the Invention

[0005] The purpose of this invention is to provide a device and method for online detection of reagent dosage in mineral processing. By setting up multiple reagent storage tanks, the type and proportion parameters of the reagents are first determined based on the composition and total amount of the minerals being processed. Secondly, the flow rate of reagent passing through a solenoid valve per minute is detected by a flow meter, and the opening time of the solenoid valve is controlled based on the reagent proportion parameters and the detection information. Then, the current value output by a sliding rheostat and the reagent proportion parameters are used to determine whether the reagent volume in the storage tanks meets the standard. Finally, compressed gas is used to propel the reagents, providing power to transport them to a mixing tank for stirring and mixing. This invention allows for simultaneous online detection of multiple reagents, which is not only more efficient and convenient but also ensures the accuracy of the reagent dosage.

[0006] To achieve the above objectives, the technical solution of the present invention is as follows: a device and method for online detection of reagent dosage in mineral processing, comprising a mobile terminal, a controller, and a mixing tank, wherein the mobile terminal is electrically connected to the controller; a plurality of reagent storage tanks are fixedly connected to the top of the mixing tank; a transition tank is fixedly connected to the top of each reagent storage tank; a water pump is connected to the top of the transition tank; a measuring component for measuring reagent flow rate is provided at the connection between the transition tank and the reagent storage tank.

[0007] The medicine storage box has a vertically sliding horizontal plate inside, and two solenoid valves are installed on the horizontal plate. The two solenoid valves are electrically connected to the controller. A through groove is opened on the inner side wall of the medicine storage box, and the two solenoid valves are connected to the through groove. A telescopic plate for closing the through groove is fixedly connected to the bottom of the horizontal plate.

[0008] A connecting rod and several springs are fixedly connected to the bottom of the horizontal plate. A sliding rheostat is installed on the bottom wall of the medicine storage box. The sliding rheostat is electrically connected to the controller. The slider of the sliding rheostat is fixedly connected to the end of the connecting rod away from the horizontal plate. The end of the spring away from the horizontal plate is fixedly connected to the bottom of the medicine storage box.

[0009] The passageway is connected to a first pipe, the end of which, away from the passageway, passes through the side wall of the medicine storage tank and the top wall of the mixing tank and connects to the inside of the mixing tank; the bottom of the mixing tank is connected to three solenoid valves, which are electrically connected to the controller.

[0010] Furthermore, the measuring component includes a solenoid valve, a flow meter mounted on the bottom of the solenoid valve, and both the solenoid valve and the flow meter are electrically connected to the controller.

[0011] Furthermore, a one-way valve is installed on the top of the telescopic plate, and the one-way valve is electrically connected to the controller.

[0012] Furthermore, a bracket is fixedly connected to the outer wall of the mixing chamber.

[0013] Furthermore, the bottom of the mixing chamber is V-shaped.

[0014] Furthermore, it also includes a second tube and a buzzer, the second tube extending through the transition box into the medicine storage box; the buzzer is installed on the outer wall of the medicine storage box.

[0015] Furthermore, a method for online detection of reagent dosage during mineral processing includes the following steps:

[0016] Step 1: Determine the type and proportion parameters of the reagents based on the composition and total amount of the minerals being beneficiated;

[0017] Step 2: Input the mixing ratio parameters of different agents into the mobile terminal respectively, and deliver different agents to different transition tanks through the water pump; the agents are delivered to the storage tank through a solenoid valve; the flow meter detects the flow rate of the agents, detects the amount of liquid passing through the solenoid valve every minute, and transmits the detection information to the controller. The controller determines the opening time of the solenoid valve based on the mixing ratio parameters of the agents and the detection information.

[0018] Step 3: The medicine in the storage tank pushes the horizontal plate and connecting rod downwards. After the gas in the area below the horizontal plate is compressed, the pressure increases. Under the push of the connecting rod, the resistance and output current of the sliding rheostat change. The controller determines the downward distance of the horizontal plate based on the output current value, thereby determining the volume of medicine in the storage tank. The controller determines whether the volume of medicine in the storage tank meets the standard based on the medicine ratio parameters.

[0019] Step 4: The agent is delivered to the mixing chamber through the two solenoid valves, the through-slot, and the first pipe. At the same time as the two solenoid valves are opened, the one-way valve is opened. The compressed gas under the horizontal plate is quickly depressurized through the one-way valve. The compressed gas pushes the agent to provide power for the agent to be delivered to the mixing chamber through the first pipe.

[0020] Furthermore, in step one, the types of agents include foaming agents, modifiers, and collectors.

[0021] The above scheme achieves the following principles and beneficial effects:

[0022] This invention utilizes multiple reagent storage tanks. First, the type and proportion parameters of the reagents are determined based on the composition and total amount of the minerals being processed. Second, the flow rate of the reagent passing through a solenoid valve per minute is detected by a flow meter, and the opening time of the solenoid valve is controlled based on the reagent proportion parameters and detection information. Then, the current value output by a sliding rheostat and the reagent proportion parameters are used to determine whether the reagent volume in the storage tank meets the standard. Finally, compressed gas is used to propel the reagents, providing power to deliver them to the mixing tank for stirring and mixing. This invention allows for simultaneous online detection of multiple reagents, which is not only more efficient and convenient but also ensures the accuracy of the dosage. Attached Figure Description

[0023] Figure 1This is a cross-sectional view of an embodiment of the present invention.

[0024] Figure 2 This is an embodiment of the present invention. Figure 1 Enlarged view of part A in the middle. Detailed Implementation

[0025] The following detailed description illustrates the specific implementation method:

[0026] The reference numerals in the accompanying drawings of the instruction manual include: medicine storage tank 1, transition tank 2, first solenoid valve 3, flow meter 4, horizontal plate 5, second solenoid valve 6, one-way valve 7, spring 8, sliding rheostat 9, connecting rod 10, telescopic plate 11, first pipe 12, through groove 13, mixing tank 14, third solenoid valve 15, bracket 16, buzzer 17, and second pipe 18.

[0027] Example 1

[0028] The basic implementation examples are as follows: Figure 1-2 As shown:

[0029] A device and method for online detection of reagent dosage in mineral processing includes a mobile terminal, a controller, and a mixing tank 14. The controller is preferably an SPC-STW-S0402CTR, and the mobile terminal is electrically connected to the controller. Several reagent storage tanks 1 are welded to the top of the mixing tank 14. Each reagent storage tank 1 has a transition tank 2 welded to its top. A water pump (not shown in the figure) is connected to the top of the transition tank 2. A measuring component for measuring reagent flow rate is provided at the connection between the transition tank 2 and the reagent storage tank 1.

[0030] The medicine storage box 1 has a vertically sliding horizontal plate 5 inside, and two solenoid valves 6 are installed on the horizontal plate 5. The two solenoid valves 6 are electrically connected to the controller. A through groove 13 is opened on the inner side wall of the medicine storage box 1, and the two solenoid valves 6 are connected to the through groove 13. A telescopic plate 11 for sealing the through groove 13 is welded to the bottom of the horizontal plate 5.

[0031] A connecting rod 10 and several springs 8 are welded to the bottom of the horizontal plate 5. A sliding rheostat 9 is installed on the bottom wall of the medicine storage box 1. The sliding rheostat 9 is electrically connected to the controller. The slider of the sliding rheostat 9 is fixedly connected to the end of the connecting rod 10 away from the horizontal plate 5 by bolts. The end of the spring 8 away from the horizontal plate 5 is welded to the bottom of the medicine storage box 1.

[0032] A first pipe 12 is connected to the through groove 13. The end of the first pipe 12 away from the through groove 13 passes through the side wall of the medicine storage box 1 and the top wall of the mixing box 14 and is connected to the inside of the mixing box 14. A three solenoid valve 15 is connected to the bottom of the mixing box 14 and is electrically connected to the controller.

[0033] The measuring component includes a solenoid valve 3, and a flow meter 4 is mounted on the bottom of the solenoid valve 3. The flow meter 4 is preferably of model AC-TM. Both the solenoid valve 3 and the flow meter 4 are electrically connected to the controller.

[0034] A one-way valve 7 is installed on the top of the telescopic plate 11, and the one-way valve 7 is electrically connected to the controller.

[0035] A method for online detection of reagent dosage during mineral processing, characterized by comprising the following steps:

[0036] Step 1: Determine the type and proportion parameters of reagents based on the composition and total amount of minerals in the ore beneficiation process; the types of reagents include frothers, modifiers, and collectors;

[0037] Step 2: Input the mixing ratio parameters of different agents into the mobile terminal respectively, and deliver different agents to different transition tanks 2 through the water pump; the agent is delivered to the storage tank 1 through a solenoid valve 3; the flow meter 4 detects the flow rate of the agent, detects the amount of agent liquid passing through the solenoid valve 3 every minute, and transmits the detection information to the controller. The controller determines the opening time of the solenoid valve 3 based on the mixing ratio parameters of the agent and the detection information.

[0038] Step 3: The medicine in the medicine storage tank 1 pushes the horizontal plate 5 and the connecting rod 10 downwards. After the gas in the area below the horizontal plate 5 is compressed, the pressure increases. Under the push of the connecting rod 10, the resistance and output current of the sliding rheostat 9 change. The controller determines the downward distance of the horizontal plate 5 based on the output current value, thereby determining the volume of medicine in the medicine storage tank 1. The controller determines whether the volume of medicine in the medicine storage tank 1 meets the standard based on the medicine ratio parameters.

[0039] Step 4: The agent is delivered to the mixing chamber 14 through the two solenoid valves 6, the through slot 13 and the first pipe 12. At the same time as the two solenoid valves 6 are opened, the one-way valve 7 is opened. The compressed gas under the horizontal plate 5 is quickly depressurized through the one-way valve 7. The compressed gas pushes the agent to provide power for the agent to be delivered to the mixing chamber 14 through the first pipe 12.

[0040] The specific implementation process is as follows:

[0041] The type and proportion parameters of the reagents are determined based on the composition and total amount of the minerals being beneficiated.

[0042] The mixing ratio parameters of different drugs are input into the mobile terminal, which in this embodiment is a computer in the prior art; different drugs are delivered to different transition tanks 2 by a water pump; a solenoid valve 3 and a flow meter 4 are opened, and the drug is delivered to the storage tank 1 through the solenoid valve 3; when the drug passes through the flow meter 4, the flow meter 4 detects the flow rate of the drug, detects the amount of drug liquid passing through the solenoid valve 3 every minute, and transmits the detection information to the controller. The controller controls the opening time of the solenoid valve 3 based on the mixing ratio parameters of the drug and the flow detection information, so that the amount of drug delivered to the storage tank 1 is close to the preset mixing ratio parameter.

[0043] When the medicine is delivered into the medicine storage tank 1, the medicine in the medicine storage tank 1 pushes the horizontal plate 5, spring 8, telescopic plate 11 and connecting rod 10 downward. The gas in the area below the horizontal plate 5 is compressed, and the pressure increases. The slider of the sliding rheostat 9 moves downward under the push of the connecting rod 10, causing the resistance of the sliding rheostat 9 to change, thereby changing the output current of the sliding rheostat 9. The controller determines the downward movement distance of the horizontal plate 5 based on the current value of the output current of the sliding rheostat 9, and determines the volume of the medicine in the medicine storage tank 1 based on the downward movement distance of the horizontal plate 5. For example, if the output current value of the sliding rheostat 9 is 5A, then the corresponding downward movement distance of the horizontal plate 5 is determined to be 5cm, and the volume of the medicine in the medicine storage tank 1 is 50ml. The controller obtains this information and determines whether the volume of the medicine in the medicine storage tank 1 meets the standard based on the medicine ratio parameters, and displays the judgment result on the mobile terminal.

[0044] When the judgment result is satisfactory, the controller controls the opening of the second solenoid valve 6, and the medicine is sequentially transported through the second solenoid valve 6, the channel 13, and the first pipe 12 into the mixing tank 14. Simultaneously with the opening of the second solenoid valve 6, the one-way valve 7 is opened, and the compressed gas below the horizontal plate 5 is rapidly depressurized through the one-way valve 7. The compressed gas quickly pushes the medicine in the channel 13, providing power for the medicine to be transported through the first pipe 12 into the mixing tank 14. Because the compressed gas rapidly pushes the medicine into the mixing tank 14, when the one-way valves 7 in multiple medicine storage tanks 1 are opened simultaneously, different medicines... The compressed gas is rapidly propelled into the mixing chamber 14, which can achieve the purpose of stirring and mixing to a certain extent. When the delivery sequence of different agents needs to be different, the one-way valves 7 in different storage tanks 1 can be opened in sequence. When the one-way valve 7 in a certain storage tank 1 is opened first, the delivery power of the agent in that storage tank 1 is stronger, while the delivery power of the agent in the storage tank 1 where the one-way valve 7 is not opened is weaker. Thus, the one-way valves 7 in different positions can be opened in sequence according to the needs to achieve different degrees of mixing. The agent in the mixing chamber 14 is then delivered out through the three solenoid valves 15.

[0045] Example 2

[0046] The difference from the above embodiment is that a bracket 16 is welded to the outer wall of the mixing box 14.

[0047] The specific implementation process is as follows: The bracket 16 can support the mixing box 14, so that the three solenoid valves 15 are at a distance from the ground, which facilitates the subsequent delivery of the medicine.

[0048] Example 3

[0049] The difference from the above embodiment is that the bottom of the mixing box 14 is "V" shaped.

[0050] The specific implementation process is as follows: The bottom of the mixing box 14 is set to a "V" shape to facilitate the diversion of the agent and prevent the agent from remaining in the corners of the mixing box 14, which would cause a large deviation in the agent delivery volume.

[0051] Example 4

[0052] The difference from the above embodiment is that it also includes a second tube 18 and a buzzer 17. The second tube 18 extends through the transition box 2 into the medicine storage box 1. The buzzer 17 is installed on the outer wall of the medicine storage box 1. The model of the buzzer 17 is preferably TMB12A05.

[0053] The specific implementation process is as follows: When the controller determines that the volume of medicine in the medicine storage tank 1 is lower than the preset parameter ratio based on the current value of the output current of the sliding rheostat 9, the controller controls the opening time of a solenoid valve 3 according to the difference, and delivers a certain amount of medicine into the medicine storage tank 1 again. At the same time, the output current of the sliding rheostat 9 changes, and the controller determines the downward movement distance of the horizontal plate 5 based on the current value of the output current of the sliding rheostat 9, and determines the volume of medicine in the medicine storage tank 1 again. This process is repeated until the volume of medicine in the medicine storage tank 1 is consistent with the preset parameter ratio or the error is within 2ml.

[0054] When the controller determines that the volume of medicine in the medicine storage tank 1 is higher than the preset parameter ratio based on the current value of the output current of the sliding rheostat 9, the buzzer 17 sounds an alarm, and the difference is displayed on the mobile terminal. Based on the difference, a certain amount of medicine is drawn from the medicine storage tank 1 through the second tube 18. At the same time, the output current of the sliding rheostat 9 changes. The controller determines the volume of medicine in the medicine storage tank 1 again based on the current value of the output current of the sliding rheostat 9. This process is repeated until the volume of medicine in the medicine storage tank 1 is consistent with the preset parameter ratio or the error is within 2 ml.

[0055] The above descriptions are merely embodiments of the present invention. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of the present invention. These should also be considered within the scope of protection of the present invention, and will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A device for online detection of reagent dosage during mineral processing, characterized in that: It includes a mobile terminal, a controller, and a mixing tank. The mobile terminal is electrically connected to the controller. Several drug storage tanks are fixedly connected to the top of the mixing tank. A transition tank is fixedly connected to the top of each drug storage tank. A water pump is connected to the top of the transition tank. A measuring component for measuring the drug flow rate is provided at the connection between the transition tank and the drug storage tank. The medicine storage box has a horizontal plate that slides vertically inside. A second solenoid valve is installed on the horizontal plate and is electrically connected to the controller. A through groove is opened on the inner side wall of the medicine storage box, and the second solenoid valve is connected to the through groove. A telescopic plate for closing the through groove is fixedly connected to the bottom of the horizontal plate. A connecting rod and several springs are fixedly connected to the bottom of the horizontal plate. A sliding rheostat is installed on the bottom wall of the medicine storage box. The sliding rheostat is electrically connected to the controller. The slider of the sliding rheostat is fixedly connected to the end of the connecting rod away from the horizontal plate. The end of the spring away from the horizontal plate is fixedly connected to the bottom of the medicine storage box. A first pipe is connected to the through slot, and the end of the first pipe away from the through slot passes through the side wall of the medicine storage tank and the top wall of the mixing tank and connects to the inside of the mixing tank; a third solenoid valve is connected to the bottom of the mixing tank, and the third solenoid valve is electrically connected to the controller. The measuring components include a first solenoid valve, a flow meter mounted on the bottom of the first solenoid valve, and both the first solenoid valve and the flow meter are electrically connected to the controller; A one-way valve is installed on the top of the telescopic plate, and the one-way valve is electrically connected to the controller.

2. The device for online detection of reagent dosage in the mineral processing production process according to claim 1, characterized in that: A bracket is fixedly connected to the outer wall of the mixing tank.

3. The device for online detection of reagent dosage in the mineral processing production process according to claim 2, characterized in that: The bottom of the mixing tank is V-shaped.

4. The device for online detection of reagent dosage in the mineral processing production process according to claim 3, characterized in that: It also includes a second tube and a buzzer. The second tube extends through the transition box into the medicine storage box; the buzzer is installed on the outer wall of the medicine storage box.

5. A method for online detection of reagent dosage during mineral processing, based on the apparatus for online detection of reagent dosage during mineral processing according to any one of claims 1-4, characterized in that: Includes the following steps: Step 1: Determine the type and proportion parameters of the reagents based on the composition and total amount of the minerals being beneficiated; Step 2: Input the mixing ratio parameters of different agents into the mobile terminal respectively, and deliver different agents to different transition tanks through the water pump; the agents are delivered to the storage tank through the first solenoid valve; the flow meter detects the flow rate of the agents, detects the amount of liquid passing through the first solenoid valve every minute, and transmits the detection information to the controller. The controller determines the opening time of the first solenoid valve based on the mixing ratio parameters of the agents and the detection information. Step 3: The medicine in the storage tank pushes the horizontal plate and connecting rod downwards. After the gas in the area below the horizontal plate is compressed, the pressure increases. Under the push of the connecting rod, the resistance and output current of the sliding rheostat change. The controller determines the downward distance of the horizontal plate based on the output current value, thereby determining the volume of medicine in the storage tank. The controller determines whether the volume of medicine in the storage tank meets the standard based on the medicine ratio parameters. Step 4: The agent is delivered to the mixing chamber through the second solenoid valve, the through-slot, and the first pipe. At the same time as the second solenoid valve is opened, the one-way valve is opened. The compressed gas under the horizontal plate is quickly depressurized through the one-way valve. The compressed gas pushes the agent to provide power for the agent to be delivered to the mixing chamber through the first pipe.

6. The method for online detection of reagent dosage during mineral processing according to claim 5, characterized in that: In step one, the types of agents include foaming agents, modifiers, and collectors.

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