Automatic chemical adding system for coal washing flotation

Abstract

The utility model discloses a coal washing flotation automatic dosing system which comprises a flotation tank, a first concentration monitoring sensor and a second concentration monitoring sensor are arranged in the flotation tank, and the first concentration monitoring sensor and the second concentration monitoring sensor are both electrically connected with a programmable logic controller (PLC). The electromagnetic valve of the foaming agent filling and conveying pipe and the electromagnetic valve of the collecting agent filling and conveying pipe are both electrically connected with the PLC, the PLC is electrically connected with the monitoring room, and the monitoring room is electrically connected with the camera. The system has the beneficial effects that the system can control the foaming agent tank and the collecting agent tank to accurately feed chemicals into the flotation tank, so that the automatic chemical feeding of coal washing flotation is realized, the clean coal flotation rate is improved, the quality and the output of flotation products are ensured, and meanwhile, the working intensity of field personnel is also reduced.

Description

Technical field:

[0001] The utility model belongs to the field of coal washing flotation dosing, in particular to an automatic coal washing flotation dosing system. Background technology:

[0002] Dosing is an essential part of flotation production. The quality of dosing directly affects the quality of mineral products. Different liquid chemicals are added to the flotation tank, and a series of reactions occur between the liquid chemicals and the minerals, thereby achieving the purpose of separating or purifying the minerals.

[0003] Take coal washing flotation as an example. In the actual production process, multiple reagents are mainly added manually in the flotation tank. This method of adding reagents mainly relies on the experience of on-site operators to control the amount of reagents added, and it is impossible to accurately control the amount of reagents added. Therefore, when the amount of reagents added is insufficient, it will lead to incomplete flotation of clean coal in the mixed liquid, reduce the flotation rate of clean coal, and affect the normal coal preparation output. When the flotation reagents are added in excess, it will cause some coal slime to be mixed in the flotation clean coal, resulting in a decrease in the quality of the flotation product. In addition, after the addition of reagents is completed, the operator needs to observe the situation in the flotation tank on site, resulting in a high work intensity for the operator. Utility model content:

[0004] The utility model aims to provide an automatic dosing system for coal washing flotation, and overcomes the shortcomings of the above-mentioned prior art, and effectively solves the existing problems caused by manual dosing.

[0005] Contents of the utility model: A coal washing flotation automatic dosing system, including a flotation tank, in which a first concentration monitoring sensor and a second concentration monitoring sensor are arranged, the first concentration monitoring sensor and the second concentration monitoring sensor are both electrically connected to a PLC controller, the solenoid valve of a foaming agent filling and conveying pipe and the solenoid valve of a collecting agent filling and conveying pipe are both electrically connected to the PLC controller, the PLC controller is electrically connected to a monitoring room, and the monitoring room is electrically connected to a camera.

[0006] Furthermore, a first liquid level sensor and a second liquid level sensor are respectively provided in the foaming agent tank and the collecting agent tank, and the first liquid level sensor and the second liquid level sensor are both electrically connected to the PLC controller.

[0007] Furthermore, an illumination lamp is electrically connected to the camera.

[0008] Furthermore, the lighting lamp is a light-sensing lamp.

[0009] The beneficial effects of the utility model are as follows: the system can control the frother filling and the collector filling to accurately add drugs to the flotation tank, thereby realizing automatic adding of drugs in coal washing flotation, improving the flotation rate of clean coal, ensuring the quality and output of flotation products, and also reducing the work intensity of on-site personnel. Description of the drawings:

[0010] Figure 1 It is a schematic diagram of the overall system of the utility model;

[0011] In the figure, 1 is a flotation tank, 2 is a first concentration monitoring sensor, 3 is a second concentration monitoring sensor, 4 is a PLC controller, 5 is a frother tank, 6 is a collector tank, 7 is a monitoring room, 8 is a camera, 9 is a first liquid level sensor, 10 is a second liquid level sensor, and 11 is a lighting lamp. Specific implementation method:

[0012] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation of the present invention is now described with reference to the accompanying drawings:

[0013] like Figure 1 As shown, an automatic dosing system for flotation of coal washing comprises a flotation tank 1, in which a first concentration monitoring sensor 2 and a second concentration monitoring sensor 3 are arranged, the first concentration monitoring sensor 2 and the second concentration monitoring sensor 3 are both electrically connected to a PLC controller 4, the solenoid valve of a conveying pipe of a foaming agent tank 5 and the solenoid valve of a conveying pipe of a collecting agent tank 6 are both electrically connected to the PLC controller 4, the PLC controller 4 is electrically connected to a monitoring room 7, the monitoring room 7 is electrically connected to a camera 8, a first liquid level sensor 9 and a second liquid level sensor 10 are respectively arranged in the foaming agent tank 5 and the collecting agent tank 6, the first liquid level sensor 9 and the second liquid level sensor 10 are both electrically connected to the PLC controller 4, and a lighting lamp 11 is electrically connected to the camera 8, the lighting lamp 11 is a photosensitive lamp.

[0014] Specifically, the PLC controller 4 can automatically control the frother tank 5 and the collector tank 6 to accurately add the agents into the flotation tank 1 .

[0015] In actual use, when the first concentration monitoring sensor 2 detects that the content of the foaming agent in the flotation tank 1 is lower than the set value, the signal is fed back to the PLC controller 4. At this time, the PLC controller 4 transmits the signal to the solenoid valve of the foaming agent tank 5 delivery pipe. The solenoid valve opens according to the instruction, and the agent in the foaming agent tank 5 is put into the flotation tank 1. When the foaming agent detection concentration value is the same as the preset value, the addition of the agent is stopped;

[0016] When the second concentration monitoring sensor 3 detects that the collector content in the flotation tank 1 is lower than the set value, the signal is fed back to the PLC controller 4. At this time, the PLC controller 4 transmits the signal to the solenoid valve of the collector tank 6 delivery pipe. The solenoid valve opens according to the command, and the reagent in the collector tank 6 is added to the flotation tank 1. When the collector concentration value detected is the same as the preset value, the addition of the reagent is stopped;

[0017] When the dosage of the foaming agent tank 5 and the collecting agent tank 6 reaches the minimum value, the corresponding first liquid level sensor 9 and the second liquid level sensor 10 transmit the monitoring signal to the PLC controller 4, and the PLC controller 4 transmits the early warning signal to the monitoring room 7, and the alarm signal light in the monitoring room 7 lights up, reminding the staff to add the medicine in time;

[0018] The camera 8 can transmit the real-time image of the flotation tank 1 after adding the drug back to the monitoring room 7, so that the staff can observe the drug reaction in the tank. At the same time, the photosensitive lighting lamp 11 can illuminate the flotation tank 1 according to the actual situation on site, thereby improving the shooting effect of the camera 8 and helping the staff to accurately observe the drug reaction in the tank.

[0019] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A coal washing flotation automatic dosing system, comprising a flotation cell (1), characterized in that: A first concentration monitoring sensor (2) and a second concentration monitoring sensor (3) are arranged in the flotation tank (1); the first concentration monitoring sensor (2) and the second concentration monitoring sensor (3) are both electrically connected to a PLC controller (4); the solenoid valve of a conveying pipe of a frother tank (5) and the solenoid valve of a conveying pipe of a collector tank (6) are both electrically connected to the PLC controller (4); the PLC controller (4) is electrically connected to a monitoring room (7); and the monitoring room (7) is electrically connected to a camera (8).

2. The automatic dosing system for coal washing flotation according to claim 1 is characterized by: A first liquid level sensor (9) and a second liquid level sensor (10) are respectively arranged in the foaming agent tank (5) and the collecting agent tank (6); the first liquid level sensor (9) and the second liquid level sensor (10) are both electrically connected to the PLC controller (4).

3. The automatic dosing system for coal washing flotation according to claim 1 is characterized by: The camera (8) is electrically connected to a lighting lamp (11).

4. The automatic dosing system for coal washing flotation according to claim 3 is characterized by: The lighting lamp (11) is a light-sensing lamp.

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