CN203143598U

CN203143598U - Automatic control system of inclined shaft belt conveyor coal feeder

Info

Publication number: CN203143598U
Application number: CN 201320146621
Authority: CN
Inventors: 杜建伟; 郝军; 段瑞; 栗鲁平; 王峰
Original assignee: Shanxi Luan Mining Group Co Ltd
Current assignee: Shanxi Luan Mining Group Co Ltd
Priority date: 2013-03-28
Filing date: 2013-03-28
Publication date: 2013-08-21
Anticipated expiration: 2023-03-28

Abstract

The utility model discloses an automatic control system of an inclined shaft belt conveyor coal feeder and belongs to the technical field of control devices of inclined shaft belt conveyor coal feeders. The utility model provides a control device which can automatically adjust the coal feeder according to the operating condition of a belt conveyor. According to the technical scheme, the automatic control system of the inclined shaft belt conveyor coal feeder comprises a PLC controller, a frequency converter, a current transformer, an earth leakage lockout detecting module and a steering sensor, wherein the current transformer is connected in a circuit of a main electrical machine of the inclined shaft belt conveyor in series, the output end of the current transformer is connected with an input end port of the PLC controller, the PLC controller is connected with the frequency converter after being connected with a D/A conversion module in series, the frequency converter is connected with a main electrical machine of the coal feeder, the main electrical machine of the coal feeder is connected with the earth leakage lockout detecting module, the steering sensor is installed on a coal feeder winch, and the earth leakage lockout detecting module and the steering sensor are respectively connected with the PLC controller. The automatic control system of the inclined shaft belt conveyor coal feeder is applicable to the field of coal mines.

Description

A kind of inclined shaft belt feeder feeder autonomous cruise speed system

Technical field

A kind of inclined shaft belt feeder of the utility model feeder autonomous cruise speed system belongs to inclined shaft belt feeder feeder control setup technical field.

Background technology

Along with improving constantly of state-of-art; adopted the comprehensive extraction system that comprises that coalcutter, feeder and belt feeder etc. are formed in the increasing colliery; but because the difference of coal bed texture; the coal seam of more particularly containing the water coal; the proportion that the coalcutter digging is produced coal occurs significantly changing through regular meeting; generally speaking; the coal supply power of feeder certain; will cause the belt feeder load to increase like this; the electric current of belt feeder master motor raises; this can bring potential safety hazard for the belt feeder system, the out of reach coal mine production safety, reliably, principle efficiently.

The utility model content

The utility model overcomes the deficiency that prior art exists, and technical matters to be solved is: a kind of control setup that can adjust feeder according to belt feeder running condition automatically is provided.

For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of inclined shaft belt feeder feeder autonomous cruise speed system comprises PLC controller, frequency converter, current transformer, earth leakage search/lockout detection module and rotation direction sensor; Described current transformer is serially connected in the inclined shaft belt feeder master motor circuit, and the mouth of current transformer links to each other with the input port of PLC controller, links to each other with frequency converter behind the PLC controller serial connection D/A conversion module, and frequency converter links to each other with feeder master motor;

Described feeder master motor is connected with the earth leakage search/lockout detection module, on the feeder winch rotation direction sensor is installed; The earth leakage search/lockout detection module links to each other with the PLC controller respectively with rotation direction sensor.

Described PLC controller also is connected with communication module, power module, read-out, indicator lamp and control button.

Described PLC controller, frequency converter, communication module and power module are installed in the explosion-proof tank, and described read-out, indicator lamp and control button are installed on the above-mentioned explosion-proof tank chamber door.

The beneficial effect that the utility model compared with prior art has is: the utility model adopts frequency control, arithmetic capability by the PLC controller, rely on the main motor of the current control feeder of belt feeder master motor, reached the purpose of protecting belt feeder effectively, realized the automatic control to feeder simultaneously, improve safety and the reliability of the operation of feeder system, and reduce power consumption, saves energy; The whole apparatus structure of the utility model is succinct, and is easy to install, the degree of automation height.

Description of drawings

The utility model is described in more detail below in conjunction with accompanying drawing:

Fig. 1 is electrical block diagram of the present utility model;

Among the figure: 1 is that PLC controller, 2 is that frequency converter, 3 is that current transformer, 4 is that earth leakage search/lockout detection module, 5 is that rotation direction sensor, 6 is that D/A conversion module, 7 is that feeder master motor, 8 is that communication module, 9 is that power module, 10 is that read-out, 11 is that indicator lamp, 12 is control button.

The specific embodiment

As shown in Figure 1, a kind of inclined shaft belt feeder of the utility model feeder autonomous cruise speed system comprises PLC controller 1, frequency converter 2, current transformer 3, earth leakage search/lockout detection module 4 and rotation direction sensor 5; Described current transformer 3 is serially connected in the inclined shaft belt feeder master motor circuit, the mouth of current transformer 3 links to each other with the input port of PLC controller 1, current transformer 3 is gathered the real-time current signal of inclined shaft belt feeder master's motor, and the current signal of gathering is sent to PLC controller 1.

Above-mentioned PLC controller 1 serial connection D/A conversion module 6 backs link to each other with frequency converter 2, and frequency converter 2 links to each other with feeder master motor 7; PLC controller 1 is the control core of whole autonomous cruise speed system, it can initialization system mode of operation and mode, various control commands that can delivery system, can received current transformer 3, the feedback signal of frequency converter 2 and each sensor, for realizing that 7 speed governing provide failure-free control to feeder master motor; Frequency converter 2 is energy feed units of power station, and the electric energy that input power frequency electric energy can be converted to frequency adjustable by it provides feeder master motor 7, to reach the purpose of control feeder master motor 7 rotating speeds; PLC controller 1 carries out computing by the current information that current transformer 3 is sent into, and with the reference signal of operation result as the control coal-supplying amount, thereby implements accurately control.

Described feeder master motor 7 is connected with earth leakage search/lockout detection module 4, and rotation direction sensor 5 is installed on the feeder winch; Earth leakage search/lockout detection module 4 links to each other with PLC controller 1 respectively with rotation direction sensor 5, earth leakage search/lockout detection module 4 can be sent to PLC controller 1 with the earth leakage search/lockout signal of feeder master motor 7, rotation direction sensor 5 is used for detecting turning to of feeder winch, can correctly send the coal supply direction signal by it, improve safety and the reliability of feeder system operation.

Described PLC controller 1 also is connected with communication module 8, power module 9, read-out 10, indicator lamp 11 and control button 12, PLC controller 1 can link to each other with the colliery complex control system by communication module 8, real time data is sent to Control Room, also can realize Control Room to the Long-distance Control of PLC controller 1, various working parameters, mode of operation, fault parameter and faulty condition that above-mentioned read-out 10 can the on-line monitoring coal supply system.

The working environment in colliery has damp, dust is also many, so needs for safety of coal mines, described PLC controller 1, frequency converter 2, communication module 8 and power module 9 are installed in the explosion-proof tank, and described read-out 10, indicator lamp 11 and control button 12 are installed on the above-mentioned explosion-proof tank chamber door; After carrying out, whole explosion-proof tank to carry out the electromagnetism anti-interference test.

The utility model adopts frequency control; arithmetic capability by PLC controller 1; rely on the current control feeder master motor 7 of belt feeder master motor; reached the purpose of protecting belt feeder effectively; realized the automatic control to feeder simultaneously; improve safety and the reliability of the operation of feeder system, and reduce power consumption, saves energy.

Claims

1. an inclined shaft belt feeder feeder autonomous cruise speed system is characterized in that: comprise PLC controller (1), frequency converter (2), current transformer (3), earth leakage search/lockout detection module (4) and rotation direction sensor (5); Described current transformer (3) is serially connected in the inclined shaft belt feeder master motor circuit, the mouth of current transformer (3) links to each other with the input port of PLC controller (1), PLC controller (1) serial connection D/A conversion module (6) back links to each other with frequency converter (2), and frequency converter (2) links to each other with feeder master motor (7);

Described feeder master motor (7) is connected with earth leakage search/lockout detection module (4), and rotation direction sensor (5) is installed on the feeder winch; Earth leakage search/lockout detection module (4) links to each other with PLC controller (1) respectively with rotation direction sensor (5).

2. a kind of inclined shaft belt feeder feeder autonomous cruise speed system according to claim 1, it is characterized in that: described PLC controller (1) also is connected with communication module (8), power module (9), read-out (10), indicator lamp (11) and control button (12).

3. a kind of inclined shaft belt feeder feeder autonomous cruise speed system according to claim 2, it is characterized in that: described PLC controller (1), frequency converter (2), communication module (8) and power module (9) are installed in the explosion-proof tank, and described read-out (10), indicator lamp (11) and control button (12) are installed on the above-mentioned explosion-proof tank chamber door.