CN215029940U

CN215029940U - Ball mill control system

Info

Publication number: CN215029940U
Application number: CN202120169409.1U
Authority: CN
Inventors: 杨泽鑫
Original assignee: Chongqing Jinxilong Industrial Co ltd
Current assignee: Chongqing Jinxilong Industrial Co ltd
Priority date: 2021-01-22
Filing date: 2021-01-22
Publication date: 2021-12-07
Anticipated expiration: 2031-01-22

Abstract

The utility model relates to a ball mill control system, including many ball mills and PLC programmable controller, PLC programmable controller set controls many ball mills, the motor of many ball mills connects in parallel in the main circuit, still draw first branch road and the second branch road that sets up with the motor of many ball mills in parallel in the main circuit, first branch road is used for connecting many hydraulic pumps that set up in parallel and an alcohol adds the pump, the second branch road is used for connecting the flowmeter, the output that the alcohol added the pump passes through pipeline and solenoid valve and connects many ball mills respectively; and buttons, a flow switch, an overload protection switch and a pressure switch are arranged on the periphery of the PLC. The utility model discloses a many ball mills of PLC programmable controller centralized control optimize the structure, reduce the equipment fixing construction volume, degree of automation is higher, utilizes this system can realize the automatic start-up of position on the spot and stop work to the interlocking protection of each equipment has.

Description

Ball mill control system

Technical Field

The utility model belongs to the technical field of the ball mill technique and specifically relates to ball mill control system.

Background

The ball mill is common processing equipment, and the ball mill belongs to heavy-duty equipment, requires to start the torque ratio higher, adopts traditional control mode, and a billiard ball mill just need dispose high tension switchgear, water resistance cabinet and corresponding control monitoring cabinet to reserve remote control interface and connect to user DCS rack through control cable and realize remote control, because control point number and feedback signal are many, cause that the required control cable construction volume of DCS is big, and the fault point is many simultaneously, can not realize the automatic control and the interlocking protection of in-place ball mill system.

Disclosure of Invention

An object of the utility model is to provide a ball mill control system realizes multimachine control, optimizes the structure, reduces the equipment fixing construction volume.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the ball mill control system comprises a plurality of ball mills and a PLC (programmable logic controller), wherein the PLC is used for controlling the plurality of ball mills in a set manner, motors of the plurality of ball mills are connected into a main circuit in parallel, a first branch and a second branch which are connected with the motors of the plurality of ball mills in parallel are led out of the main circuit, the first branch is used for connecting a plurality of hydraulic pumps and an alcohol adding pump which are connected in parallel, the second branch is used for connecting a flow meter, the number of the hydraulic pumps corresponds to the number of the ball mills, the output ends of the alcohol adding pumps are respectively connected with the plurality of ball mills through pipelines and electromagnetic valves, and the number of the electromagnetic valves meets the requirement that each ball mill independently supplies alcohol; the hydraulic pump, the alcohol adding pump and the electromagnetic valve are controlled by the PLC to selectively work, and the periphery of the PLC is also provided with a button, a flow switch, an overload protection switch and a pressure switch.

The PLC drives the alarm device through the signal of the alarm switch.

The scheme is further that the control system adopts 24V double power supplies, a button switch, an internal power supply of a 24V PLC for an input signal and output relay, and an external 24V power supply for supplying power to a contactor, an electromagnetic valve and a flowmeter of the hydraulic pump and the alcohol adding pump.

In the above scheme, the PLC is further connected to the host computer through a communication interface, and the communication interface adopts Profibus communication, open ethernet communication, and supports TCP, UDP, and ISO _ on _ TCP communication protocols.

The utility model discloses a many ball mills of PLC programmable controller centralized control optimize the structure, reduce the equipment fixing construction volume, degree of automation is higher, utilizes this system can realize the automatic start-up of position on the spot and stop work to the interlocking protection of each equipment has. The implementation achieves the following effects: 1. adding alcohol into all ball mills, controlling and metering, 2, controlling and operating time of the ball mills, 3, realizing a board function (each ball mill operates, stops, cools, alarms and exhausts), controlling the adding amount of alcohol, 4, controlling the current states of all ball mills, 5, remotely controlling the ball mills, 6 and recording equipment operation logs.

Description of the drawings:

FIG. 1 is a block diagram of a preferred embodiment of the present invention;

FIG. 2 is a schematic view of a mounting plate arrangement of the embodiment of FIG. 1;

FIG. 3 is a wiring diagram of motors of the multiple ball mills of the embodiment of FIG. 1;

FIG. 4 is a wiring diagram of a plurality of hydraulic pumps and alcohol addition pumps of the embodiment of FIG. 1;

FIGS. 5-11 are corresponding wiring diagrams of the embodiment of FIG. 1.

The specific implementation mode is as follows:

the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings, so as to fully understand the objects, the features and the effects of the present invention.

It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1-11, it is the structure schematic diagram of the preferred embodiment of the present invention, the present invention relates to a ball mill control system, including multiple ball mills and a PLC programmable controller 10, the PLC programmable controller 10 and its control technology belong to the prior art, and are not repeated herein. A PLC (programmable logic controller) is adopted to control a plurality of ball mills in an integrated manner, motors 20 of the ball mills are connected into a main circuit in parallel, the input end of the main circuit is connected with three-phase power and is provided with a 250A air switch 30, and a wiring circuit of each motor 20 is correspondingly provided with an independent first air switch 21 and a first alternating current contactor 22 with a thermal relay. A first branch 40 and a second branch 50 which are connected in parallel with the motors of the plurality of ball mills are led out from the main circuit, the first branch 40 is used for connecting a plurality of hydraulic pumps 41 which are connected in parallel and an alcohol adding pump 42, a second air switch 43 which controls the plurality of hydraulic pumps 41 and the alcohol adding pump 42 together is arranged on the first branch 40, and similarly, a second alternating current contactor 45 with a thermal relay is correspondingly arranged on the connecting circuit of each hydraulic pump 41 and the alcohol adding pump 42. The number of the hydraulic pumps corresponds to the number of the ball mills, the output end of the alcohol adding pump is respectively connected with the plurality of ball mills through pipelines and electromagnetic valves 44, the number of the electromagnetic valves 44 meets the requirement that each ball mill independently supplies alcohol, and the hydraulic pumps, the alcohol adding pump and the electromagnetic valves selectively work under the control of a PLC (programmable logic controller), so that the on-site automatic control is realized. The second branch 50 is used for connecting a flow meter 51, and the flow meter 51 gives alcohol metering input; the periphery of the PLC 10 is also provided with a button 11, a flow switch 12, an overload protection 13 and a pressure switch 14, wherein the button 11 realizes the starting and stopping operations, the flow switch 12 controls the flow of liquid and alcohol, the overload protection 13 controls the overload protection of a motor and a corresponding pump, and the pressure switch 14 controls the pressure of the liquid and alcohol.

Referring to fig. 1 to 11, the present embodiment further includes an alarm device 60, the PLC programmable controller 10 drives the alarm device 60 through a signal of an alarm switch 61, and the alarm device 60 can realize sound and light alarm and realize interlock protection of each device. The PLC 10 is adapted to be provided with an AC contactor, a relay, a frequency converter and the like when driving a motor, a hydraulic pump, an alcohol adding pump, an electromagnetic valve and an alarm device of the ball mill so as to achieve the required control and meet the working requirement.

Referring to fig. 1-11, in the embodiment, the control system adopts 24V dual power supplies, an internal power supply of a PLC programmable controller for 24V of a button switch, an input signal and an output relay, and an external 24V power supply for supplying power to a contactor, an electromagnetic valve and a flowmeter of a hydraulic pump and an alcohol addition pump, so that the product structure can be optimized, and stable and accurate control can be obtained. The PLC programmable controller 10 is further connected to the upper computer 70 through a communication interface, which uses Profibus communication, open ethernet communication, and supports TCP, UDP, ISO _ on _ TCP communication protocols. The control system is convenient to communicate with field equipment and a user DCS/PLC system through serial communication. And a hard wiring mode is not adopted, so that data transmission and control of an upper computer (PC) are facilitated, and the cost of a control line is reduced. PROFIBUS is a FIeld BUS standard used in automation technology, and PROFIBUS is an abbreviation for PROcess FIeld BUS (PROcess FIeld BUS).

Although the preferred embodiments of the present invention have been described in connection with the accompanying drawings, the present invention should not be limited to the exact construction and operation as described and illustrated, and many equivalent modifications and variations of the above-described embodiments may be made by logical analysis, reasoning or limited experimentation by those skilled in the art without departing from the spirit and scope of the present invention, which should fall within the scope of the claims.

Claims

1. Ball mill control system, including many ball mills and PLC programmable controller, PLC programmable controller set controls many ball mills, its characterized in that: the motors of the ball mills are connected into the main circuit in parallel, a first branch and a second branch which are connected with the motors of the ball mills in parallel are led out from the main circuit, the first branch is used for connecting a plurality of hydraulic pumps which are connected in parallel and an alcohol adding pump, the second branch is used for connecting a flowmeter, the number of the hydraulic pumps corresponds to that of the ball mills, the output ends of the alcohol adding pump are respectively connected with the ball mills through pipelines and electromagnetic valves, and the number of the electromagnetic valves meets the requirement that each ball mill independently supplies alcohol; the hydraulic pump, the alcohol adding pump and the electromagnetic valve are controlled by the PLC to selectively work, and the periphery of the PLC is also provided with a button, a flow switch, an overload protection switch and a pressure switch.

2. The ball mill control system according to claim 1, characterized in that: the PLC drives the alarm device through the signal of the alarm switch.

3. The ball mill control system according to claim 1 or 2, characterized in that: the control system adopts 24V double power supplies, a button switch, an input signal and an output relay, an internal power supply of a 24V PLC, and an external 24V power supply for supplying power to a contactor, an electromagnetic valve and a flowmeter of a hydraulic pump and an alcohol adding pump.

4. The ball mill control system according to claim 1 or 2, characterized in that: the PLC is also connected with an upper computer through a communication interface, the communication interface adopts Profibus communication and open Ethernet communication, and supports TCP, UDP and ISO _ on _ TCP communication protocols.