Automatic bucket shaking control system of stacker-reclaimer

Abstract

The present application relates to the field of automatic control technology, in particular to a kind of automatic control system of vibrating hopper of stacker-reclaimer, touch screen is used to input automatic vibrating hopper mode opening instruction to controller;Belt scale is used to detect the flow of material on cantilever belt in real time, and the detected flow is sent to controller;Controller is used to judge whether the cumulative duration of instantaneous flow exceeds the first predetermined duration within the first duration after receiving automatic vibrating hopper mode opening instruction;Judge whether the cumulative flow after the last vibrating hopper reaches the predetermined cumulative flow;Judge whether the second duration interval after the last vibrating hopper reaches the second predetermined duration;Determine the case to start vibrating motor. Based on the flow of material, set the vibrating motor automatic vibrating hopper mode, and use touch screen as auxiliary, increase parameter adjustment function, which can ensure that the vibrating hopper frequency of stacker-reclaimer is adjusted in time with the throughput of hopper material, and can also avoid the phenomenon of empty vibration when the material flow is interrupted.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automatic control, in particular to an automatic hopper vibrating control system of a stacker-reclaimer. BACKGROUND

[0002] The stacker-reclaimer is a mechanical device commonly used in loading and unloading of bulk cargo such as ore, coal and grain, and can realize long-distance material conveying in cooperation with an auxiliary ground belt conveyor. During use, when the viscosity of the bulk cargo is high, the hopper of the stacker-reclaimer is prone to material accumulation, which affects the material passing capacity of the hopper and may even cause the hopper to be blocked.

[0003] Therefore, a vibrating motor is usually installed on the hopper of the stacker-reclaimer to vibrate the hopper wall and remove the accumulated material in the hopper. Currently, there are two control modes for the vibrating motor: one is manual control by an operator, and the other is automatic operation mode set in a time cycle. However, when the viscosity of the material is high, it is difficult for the operator to accurately control the operation frequency of the vibrating motor, which increases the operation difficulty of the operator. If the vibrating motor is started frequently in the case of material flow interruption, the hopper may be damaged. SUMMARY

[0004] To solve the above problems, the present application provides an automatic hopper vibrating control system of a stacker-reclaimer.

[0005] In one aspect of the present application, an automatic hopper vibrating control system of a stacker-reclaimer is provided, which comprises a control cabinet arranged in a control room, a belt scale arranged on a cantilever belt, and a vibrating motor arranged on a hopper; the control cabinet comprises a controller and a touch screen; the controller is electrically connected with the belt scale and the vibrating motor, and the controller is in communication connection with the touch screen.

[0006] The touch screen is used for inputting an automatic hopper vibrating mode opening instruction to the controller; the belt scale is used for detecting the flow of the material on the cantilever belt in real time, and sending the detected flow to the controller, wherein the flow includes instantaneous flow and cumulative flow;

[0007] The controller is used for judging whether the cumulative time of the instantaneous flow exceeding a predetermined instantaneous flow reaches a first predetermined time after a first time length, after receiving the automatic hopper vibrating mode opening instruction, wherein the first predetermined time is less than the first time length.

[0008] The controller determines whether the cumulative flow after the last hopper vibration reaches a predetermined cumulative flow when the first predetermined time is reached.

[0009] The controller determines whether a second time length between the last hopper vibration reaches a second predetermined time when the predetermined cumulative flow is reached.

[0010] The controller determines to start the vibration motor when a second predetermined time length is reached.

[0011] The touch screen is also used to input setting values of the first time length, the predetermined instantaneous flow, the first predetermined time length, the predetermined cumulative flow and the second predetermined time length into the controller.

[0012] Compared with the prior art, the present application has the beneficial effects that the automatic hopper vibration mode of the vibration motor is set according to the passing flow of the material, and the parameter adjustment function is added with the aid of the touch screen, so that the hopper vibration frequency of the stacker-reclaimer can be adjusted in time according to the passing flow of the material, and the empty vibration phenomenon when the material flow is interrupted can be avoided, thereby saving electric energy and prolonging the service life of the hopper and the vibration motor.

[0013] Optionally, the controller stops the vibration motor when the running time length of the vibration motor reaches a third predetermined time length.

[0014] Optionally, the controller clears the cumulative flow and the second time length of this time and re-performs the accumulation after stopping the vibration motor.

[0015] Optionally, a start button and a stop button can also be arranged on the control cabinet, and are used to input the manual control instruction of the vibration motor into the controller. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the application and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:

[0017] Figure 1 A specific example diagram of an automatic hopper vibration process provided for the embodiment of the present application;

[0018] Figure 2 A man-machine interface arrangement structure diagram in the touch screen provided for the embodiment of the present application. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the embodiments and drawings. Herein, the illustrative embodiments of the present application and the description thereof are used to explain the present application, but not as a limitation of the present application.

[0020] The automatic hopper vibration control system of the stacker-reclaimer provided by the present application comprises a control cabinet arranged in a control room, a belt scale arranged on a cantilever belt and a vibration motor arranged on a hopper; the control cabinet comprises a controller and a touch screen; the controller is electrically connected with the belt scale and the vibration motor, and the controller is in communication connection with the touch screen.

[0021] The touch screen is used for inputting an automatic bucket-shaking mode start instruction to the controller; and the belt scale is used for detecting the flow of the material on the cantilever belt in real time and sending the detected flow to the controller, the flow including instantaneous flow and cumulative flow;

[0022] The controller is used for judging whether the cumulative time of the instantaneous flow exceeding the predetermined instantaneous flow reaches a first predetermined time within a first time after receiving the automatic bucket-shaking mode start instruction, the first predetermined time being less than the first time;

[0023] The controller is used for judging whether the cumulative flow after the last bucket-shaking reaches a predetermined cumulative flow when the first predetermined time is reached;

[0024] The controller is used for judging whether a second time interval after the last bucket-shaking reaches a second predetermined time when the predetermined cumulative flow is reached;

[0025] The controller is used for starting the vibration motor when the second predetermined time is reached;

[0026] The touch screen is used for inputting the set values of the first time, the predetermined instantaneous flow, the first predetermined time, the predetermined cumulative flow and the second predetermined time to the controller.

[0027] In the implementation, the controller stops the vibration motor after determining that the running time of the vibration motor reaches a third predetermined time. The controller clears the cumulative flow and the second time of this time after stopping the vibration motor and re-performs the accumulation. The control cabinet can further be provided with a start button and a stop button, which are used for inputting a manual control instruction of the vibration motor to the controller.

[0028] Embodiment one:

[0029] Mode selection: refer to Figure 2 Two selection buttons of the automatic bucket-shaking mode "on" and "off" are arranged in the human-machine interface of the touch screen;

[0030] The display states of the prerequisite conditions of the automatic bucket-shaking mode (each state is accessed by the controller and sent to the touch screen for display by the controller) include:

[0031] The power supply of the power source of the reclaimer is closed, the bucket wheel oil pump is on, the bucket wheel motor is on, the cantilever belt motor is on, the guide chute funnel is in place, the vibration motor power supply is closed, the vibration motor heat preservation is normal, the belt scale is fault-free, and the belt speed is normal; each state is displayed normally, and the automatic bucket-shaking mode is selected as "on", so that the automatic bucket-shaking mode is entered.

[0032] Zero protection: prevent the misoperation caused by the non-reset of the selection button, only after each state is satisfied, the "start" is selected to enter the automatic vibrating hopper mode; otherwise, the automatic vibrating hopper mode is prohibited, until the "stop" is selected to reset, after each state is satisfied and the "start" is selected again, the automatic vibrating hopper mode can be entered.

[0033] Parameter setting: enter the automatic vibrating hopper cycle through the touch screen, the cycle interval is based on the material cumulative amount, and the vibrating hopper duration is in seconds; in order to avoid the vibrating hopper cycle being too short, the interval vibrating hopper material cumulative amount interval can be set to 80 tons to 1000 tons, the vibrating hopper duration is 10 seconds to 30 seconds; and at least 30 seconds of stop vibrating after each vibrating hopper; the initial default setting cycle parameters are 300 tons of material cumulative amount and 10 seconds of vibrating hopper; a one-key assignment function can also be set, which can automatically record the cycle parameters of the last automatic vibrating hopper, and after the automatic vibrating hopper mode is started, the one-key assignment button can be clicked to directly use the recorded parameters.

[0034] Vibrating motor starting condition: in order to avoid the vibrating hopper situation when there is no material, the vibrating motor starting condition in the automatic vibrating hopper mode is that the instantaneous material flow accumulation is more than 500 tons / hour for 5 seconds within 10 seconds, the cumulative work amount interval reaches the set value, and the stop vibrating time is more than 30 seconds.

[0035] Manual vibrating hopper setting: during the automatic vibrating hopper mode, manual vibrating hopper is allowed through the start button and the stop button, and after the manual vibrating hopper is completed, a new automatic vibrating hopper cycle is entered.

[0036] The specific process is shown in Figure 1 After the automatic vibrating hopper mode is entered, it is judged whether manual operation of the vibrating motor is performed, if manual operation is performed, the vibrating hopper is completed according to the manual operation, and if manual vibrating hopper is not performed or manual vibrating hopper is completed, a new automatic vibrating hopper cycle is entered; it is judged whether the instantaneous flow is more than 500 tons / hour for more than 5 seconds within 10 seconds, if yes, it is judged whether the cumulative flow distance from the last vibrating hopper is more than 100 tons, if yes, it is judged whether the distance from the last vibrating hopper is more than 30 seconds, if yes, the vibrating motor is automatically started and kept running for 10 seconds and then stopped, the cumulative work amount of this operation is cleared after the automatic vibrating hopper is completed, and the cumulative work amount and the stop vibrating time are calculated again.

[0037] The above only describes the preferred embodiments of the present application, and is not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application is included in the protection scope of the present application.

Claims

1. A stacker-reclaimer automatic hopper-shaking control system, comprising a control cabinet arranged in a control room, a belt scale arranged on a cantilever belt, and a vibration motor arranged on a hopper; characterized in that, The control cabinet comprises a controller and a touch screen; the controller is electrically connected with the belt scale and the vibration motor, and the controller is in communication connection with the touch screen; The touch screen is used for inputting an automatic hopper-vibrating mode starting instruction to the controller; The belt scale is used for detecting the flow of the material on the cantilever belt in real time, and sending the detected flow to the controller, the flow comprising instantaneous flow and cumulative flow; The controller is used for judging whether the cumulative time length of the instantaneous flow exceeding the predetermined instantaneous flow in the first time length after receiving the automatic hopper-vibrating mode starting instruction reaches a first predetermined time length, the first predetermined time length being smaller than the first time length; The controller is used for judging whether the cumulative flow after the last hopper-vibrating reaches a predetermined cumulative flow when the first predetermined time length is reached; The controller is used for judging whether a second time length, which is the interval from the last hopper-vibrating, reaches a second predetermined time length when the predetermined cumulative flow is reached; The controller is used for starting the vibration motor when the second predetermined time length is reached; The touch screen is further used for inputting the set values of the first time length, the predetermined instantaneous flow, the first predetermined time length, the predetermined cumulative flow and the second predetermined time length to the controller.

2. The reclaimer automatic bell control system as claimed in claim 1, wherein, The controller is used for stopping the vibration motor after determining that the running time length of the vibration motor reaches a third predetermined time length after the vibration motor is started.

3. The reclaimer automatic bell control system as claimed in claim 2, wherein, The controller is used for clearing the cumulative flow and the second time length of this time and re-cumulating after the vibration motor is stopped.

4. The reclaimer automatic bell control system as claimed in claim 1, wherein, The control cabinet is further provided with a starting button and a stopping button, which are used for inputting a manual control instruction of the vibration motor to the controller.

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