Electric control system of winnowing equipment

Abstract

The utility model relates to the technical field of winnowing equipment, in particular to an electrical control system of winnowing equipment, which comprises a programmable logic controller (PLC) control system, an operating system and a low-voltage power distribution system which are all arranged in the same main control cabinet body. The PLC control system comprises a controller, a power supply module, a communication module, an analog quantity input module and an analog quantity output module, the operating system comprises a human-computer interface touch screen, and the low-voltage power distribution system comprises a low-voltage power distribution control unit; the power supply module is used for supplying power to the PLC control system, signal input and output modules of the feeding conveyor, the relay roller, the circulating fan and the discharging conveyor are connected with a controller of the PLC control system, and a main circuit breaker is arranged between the power supply module and the controller. The control systems of all parts of the winnowing equipment are connected in parallel and then are connected with the same PLC control system in series, so that integrated remote control is realized.

Description

Technical Field

[0001] This utility model relates to the field of air separation equipment technology, and specifically to an electrical control system for air separation equipment. Background Technology

[0002] Air separation equipment, also known as wind separator or airflow separator, is a mechanical device that uses air as the separating medium to separate solid waste particles according to differences in density and particle size under the action of airflow. It has wide applications in urban waste treatment, alternative fuels, agricultural rice and wheat processing, and fibrous solid waste treatment.

[0003] The main components of an air classifier typically include a feeding system, a separation system, and a discharge system. In addition to these main components, an air classifier may also include a control system to control various operating parameters of the air classifier (such as fan speed and airflow velocity) to achieve the best sorting effect.

[0004] The existing air classifier control system lacks an integrated circuit structure. Each component of the air classifier needs to be monitored and operated separately. There is no effective communication and coordination mechanism between the components. Maintenance personnel need to maintain multiple systems separately, view multiple working interfaces, and cannot perform unified remote operation, resulting in low work efficiency. Utility Model Content

[0005] To address the aforementioned issues, this invention provides an electrical control system for air classifiers, which integrates a circuit structure and electrically connects all components of the air classifier, facilitating remote control.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An electrical control system for an air separation device is provided. The air separation device includes a feeding conveyor, a relay roller, a circulating fan, and a discharging conveyor. The electrical control system includes a PLC control system, an operating system, and a low-voltage power distribution system. The PLC control system, operating system, and low-voltage power distribution system are all housed in the same main control cabinet. The PLC control system includes a controller, a power module, a communication module, an analog input module, and an analog output module. The operating system includes a human-machine interface touchscreen. The low-voltage power distribution system includes a low-voltage power distribution control unit.

[0007] The original signal input / output modules of the feeding conveyor, relay roller, circulating fan and discharge conveyor are respectively connected to the controller signals of the PLC control system;

[0008] The power module is used to supply power to the PLC control system;

[0009] The communication module is used for communication between the air separator and the user's operating instructions;

[0010] The analog input module is connected to the controller signal and is used to receive analog signals transmitted from the working circuits of the feeding conveyor, relay roller, circulating fan and discharge conveyor and convert them into digital signals that the controller can read.

[0011] The analog output module is connected to the controller signal and is used to receive digital signals sent by the controller and convert them into analog signals so that the feeding conveyor, relay roller, circulating fan and discharge conveyor can complete the instructions sent by the controller;

[0012] The low-voltage power distribution control unit is used to convert the high-voltage electrical energy connected to the electrical control system into low-voltage electrical energy, and is used for the total power supply of the electrical control system.

[0013] The human-machine interface touch screen is mounted on the surface of the main control cabinet and is used to receive user operation commands and transmit the user operation commands to the controller through the communication module.

[0014] Furthermore, the PLC control system controller and the power module are also provided with a drive circuit, a standby circuit and a response circuit.

[0015] Furthermore, the main control cabinet is also equipped with a power indicator light, which is used to indicate that the air separation equipment is powered on.

[0016] Furthermore, the low-voltage power distribution system converts externally connected high-voltage electrical energy into low-voltage electrical energy. When the connected circuit is a single-phase circuit, the converted voltage is 220V; when the connected circuit is a three-phase circuit, the converted voltage is 380V.

[0017] Furthermore, the surface of the main control cabinet is made of carbon steel with a powder-coated finish.

[0018] Furthermore, a protective door is added to the outer layer of the operating surface of the main control cabinet, and the protection level of the protective door is not lower than IP54.

[0019] Furthermore, a three-color light is installed on the top of the main control cabinet. The three-color light is yellow, green and red. The three-color light is electrically connected to the PLC control system. The yellow light is used to indicate that the air classifier is in a ready state, the green light is used to indicate that the air classifier is in a normal operating state, and the red light is used to indicate that the air classifier is in a fault state.

[0020] Furthermore, the main control cabinet is equipped with a rainproof brim on top.

[0021] Furthermore, the PLC control system controller and the power module are also provided with a remote switching circuit, a maintenance circuit and a local circuit.

[0022] The technical solution of this utility model has the following advantages:

[0023] 1. This utility model connects the signal input / output modules for individually controlling the feeding conveyor, relay roller, circulating fan, and discharging conveyor in the air separation equipment to the controller signals of the same PLC control system. By inputting operation commands to the same PLC control system, the operation of the feeding conveyor, relay roller, circulating fan, and discharging conveyor can be started or stopped individually or simultaneously. The PLC control system, operating system, and low-voltage power distribution system are all located in the same main control cabinet. The operator does not need to go to the control equipment of the feeding conveyor, relay roller, circulating fan, and discharging conveyor to shut down the equipment one by one, thus achieving unified remote control.

[0024] 2. The PLC control system of this utility model is further provided with a drive circuit, a standby circuit and a response circuit between the controller and the power supply module. The drive circuit can convert the low-level, low-current control signal into a high-level, high-current signal that can drive the motor to meet the working needs of the motor. The standby circuit is used to detect various parameters and states of the system, determine whether the system is in a ready state, and improve the reliability of the system.

[0025] It should be understood that all combinations of the foregoing concepts and the additional concepts described in more detail below can be considered as part of the utility model subject matter of this disclosure, provided that such concepts do not contradict each other.

[0026] The foregoing and other aspects, embodiments, and features of the present invention will be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as features and / or beneficial effects of exemplary embodiments, will become apparent from the following description or may be learned through practice of specific embodiments according to the teachings of the present invention. Attached Figure Description

[0027] The accompanying drawings are not drawn to scale according to a true reference numeral. In the drawings, each identical or nearly identical component shown in the various figures can be denoted by the same reference numeral. For clarity, not every component is labeled in each figure. Embodiments of various aspects of the present invention will now be described by way of example and with reference to the accompanying drawings, wherein:

[0028] Figure 1 This is a structural block diagram of the electrical control system of the air separation equipment of this utility model.

[0029] Figure 2This is a block diagram illustrating the working principle of the electrical control system of the air separation equipment of this utility model.

[0030] Explanation of icon numbers:

[0031] 100 - Electrical control system; 101 - PLC control system; 102 - Operating system; 103 - Low-voltage power distribution system; 201 - Controller; 202 - Communication module; 203 - Power supply module; 204 - Analog input module; 205 - Analog output module; 206 - Human-machine interface touch screen; 207 - Low-voltage power distribution control unit; 400 - Main circuit breaker; 500 - Signal input / output module. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model without creative effort are within the scope of protection of this utility model. Unless otherwise defined, the technical or scientific terms used herein should have the ordinary meaning understood by those skilled in the art to which this utility model pertains.

[0033] The terms "first," "second," and similar words used in this utility model patent application specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular forms of "an," "a," or "the," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one. Terms such as "comprising" or "including" mean that the element or object preceding "comprising" encompasses the features, integrals, steps, operations, elements, and / or components listed following "comprising" or "including," and do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0034] The existing air classifier control system lacks an integrated circuit structure. Each component of the air classifier needs to be monitored and operated separately. There is no effective communication and coordination mechanism between the components. Maintenance personnel need to maintain multiple systems separately, view multiple working interfaces, and cannot perform unified remote operation, resulting in low work efficiency.

[0035] To address the aforementioned issues, this utility model provides an electrical control system for an air classifier, which enables remote and unified control of all components of the air classifier and is easy to operate.

[0036] Please see Figure 1 As shown in the figure, this utility model embodiment provides an electrical control system 100 for an air separation device. The air separation device includes a feeding conveyor, a relay roller, a circulating fan, and a discharging conveyor. Each of the feeding conveyor, relay roller, circulating fan, and discharging conveyor is equipped with its own signal input / output module for receiving or transmitting external commands. The electrical control system 100 includes a PLC control system 101, an operating system 102, and a low-voltage power distribution system 103. The PLC control system 101, the operating system 102, and the low-voltage power distribution system 103 are all housed in the same main control cabinet. The PLC control system 101 includes a controller 201, a power module, a communication module 202, an analog input module 204, and an analog output module 205. The operating system 102 includes a human-machine interface touch screen 206. The low-voltage power distribution system 103 includes a low-voltage power distribution control unit 207.

[0037] The power module 203 is used to supply power to the PLC control system 101. The original signal input / output modules of the feeding conveyor, relay roller, circulating fan, and discharging conveyor are respectively connected to the controller signal of the PLC control system. The commands issued by the controller of the PLC control system are external commands to the original signal input / output modules of the feeding conveyor, relay roller, circulating fan, and discharging conveyor. A main circuit breaker 400 is provided between the power module and the controller of the PLC control system. The power supply of the PLC control system is controlled by controlling the opening and closing of the main circuit breaker 400. When the PLC control system loses power and cannot work, it cannot issue command signals to the original signal input / output modules of the feeding conveyor, relay roller, circulating fan, and discharging conveyor. However, since the feeding conveyor, relay roller, circulating fan, and discharging conveyor can still receive power from the low-voltage power distribution control unit 207, the feeding conveyor, relay roller, circulating fan, and discharging conveyor continue to work, but remote centralized control of the same PLC control system cannot be achieved.

[0038] The communication module 202 is used for communication between the air separator and the user's operation commands;

[0039] The analog input module 204 is signal-connected to the controller 201 and is used to receive analog signals transmitted from the working circuits of the feeding conveyor, relay roller, circulating fan and discharge conveyor and convert them into digital signals that the controller 201 can read.

[0040] The analog output module 205 is connected to the controller signal and is used to receive the digital signal sent by the controller 201 and convert it into an analog signal so that the feeding conveyor, relay roller, circulating fan and discharge conveyor can complete the instructions sent by the controller 201.

[0041] The low-voltage power distribution control unit 207 is used to convert the high-voltage electrical energy connected by the electrical control system 100 into low-voltage electrical energy and to provide total power to the electrical control system of the air separation equipment.

[0042] The human-machine interface touch screen 206 is disposed on the surface of the main control cabinet and is used to receive user operation commands and transmit the user operation commands to the controller 201 through the communication module.

[0043] This invention connects the signal input / output modules of the feeding conveyor, relay roller, circulating fan, and discharging conveyor in the air separation equipment to the controller signal of the same PLC control system 101. The commands issued by the controller of the PLC control system are external commands to the original signal input / output modules of the feeding conveyor, relay roller, circulating fan, and discharging conveyor. A main circuit breaker is provided between the power supply module 203 of the PLC control system and the controller. By controlling the on / off state of the main circuit breaker 400, the power supply module 203 of the PLC control system controls the power supply to the controller. When the PLC control system loses power and cannot work, it cannot issue command signals to the original signal input / output modules of the feeding conveyor, relay roller, circulating fan, and discharging conveyor. However, since the feeding conveyor, relay roller, circulating fan, and discharging conveyor can still receive power from the low-voltage power distribution control unit 207, the feeding conveyor, relay roller, circulating fan, and discharging conveyor continue to work, but remote centralized control of the same PLC control system cannot be achieved. The PLC control system 101, operating system 102, and low-voltage power distribution system 103 are all housed in the same main control cabinet. This eliminates the need for staff to physically go to the control equipment of the feeding conveyor, relay roller, circulating fan, and discharging conveyor to shut down the equipment one by one, enabling unified remote control.

[0044] In some embodiments of this utility model, an emergency stop relay is also provided between the main circuit breaker and the power module to stop the equipment operation in a timely manner in an emergency, thereby improving safety.

[0045] In some embodiments of this utility model, a drive circuit, a standby circuit, and a response circuit are further provided between the controller 201 of the PLC control system 101 and the power module 203. The drive circuit can convert low-level, low-current control signals into high-level, high-current signals that can drive the motor to meet the working needs of the motor. The standby circuit is used to detect various parameters and states of the system, determine whether the system is in a ready state, and improve the reliability of the system.

[0046] In some embodiments of this utility model, the main control cabinet is also provided with a power indicator light, which is used to indicate that the air classifier is in a powered state. The power indicator light is connected to the controller 201. When the power module powers on the air classifier, the controller 201 controls the power indicator light to light up. The staff can determine whether the air classifier is powered on by observing the lighting status of the power indicator light.

[0047] In some embodiments of this utility model, the low-voltage power distribution system 103 converts externally connected high-voltage electrical energy into low-voltage electrical energy. When the connected circuit is a single-phase circuit, the converted voltage is 220V; when the connected circuit is a three-phase circuit, the converted voltage is 380V.

[0048] In some embodiments of this utility model, the surface of the main control cabinet is a carbon steel powder-coated surface.

[0049] In some embodiments of this utility model, a protective door is added to the outer layer of the operating surface of the main control cabinet. The protection level of the protective door is not lower than IP54. Under this protection level, the dustproof level is 5, which can effectively prevent external dust from entering the main control cabinet. The amount of dust that enters will not affect the normal operation of the main control cabinet and effectively prevent external dust from damaging the internal components. The waterproof level is 4, which can effectively prevent external water from splashing into the cabinet and prevent large solid particles and splashing water droplets from damaging the internal components.

[0050] In some embodiments of this utility model, a three-color light is installed on the top of the main control cabinet. The three-color light is yellow, green and red. The three-color light is electrically connected to the PLC control system 101. The yellow light is used to indicate that the air classifier is in a ready state, the green light is used to indicate that the air classifier is in a normal operating state, and the red light is used to indicate that the air classifier is in a fault state. The operator can also know the working state of the equipment by observing the color of the indicator light from a distance.

[0051] In some embodiments of this utility model, the top of the main control cabinet is provided with a rainproof visor to further prevent external water flow from adversely affecting the internal components of the main control cabinet.

[0052] In some embodiments of this utility model, a remote switching circuit, a maintenance circuit, and a local circuit are further provided between the controller 201 of the PLC control system 101 and the power supply module. The signal input / output modules 500 of the feeding conveyor, relay roller, circulating fan, and discharging conveyor of the air separation equipment are connected or disconnected from the working circuit of the PLC control system 101 through the remote switching circuit. When the switch of the remote switching circuit is switched to connect the signal input / output modules of the feeding conveyor, relay roller, circulating fan, and discharging conveyor of the air separation equipment to the working circuit of the PLC control system 101, the signal input / output modules of the feeding conveyor, relay roller, circulating fan, and discharging conveyor in the air separation equipment are all connected to the same PLC control system 101. When the switch of the remote switching circuit is switched to disconnect the signal input / output modules of the feeding conveyor, relay roller, circulating fan, and discharging conveyor of the air separation equipment from the working circuit of the PLC control system 101, the working state of the feeding conveyor, relay roller, circulating fan, and discharging conveyor individually controlling their respective equipment is restored.

[0053] This utility model embodiment aims to add an additional PLC control system 101 to integrate and manage each device, based on the fact that the signal input and output modules of each device receive external instructions independently, so as to realize remote control of the air separation equipment.

[0054] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Those skilled in the art to which this invention pertains can make various modifications and refinements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of this invention shall be determined by the claims.

Claims

1. An electrical control system for an air separation device, the air separation device comprising a feeding conveyor, a relay roller, a circulating fan, and a discharging conveyor, characterized in that, The electrical control system includes a PLC control system, an operating system, and a low-voltage power distribution system. The PLC control system, the operating system, and the low-voltage power distribution system are all housed in the same main control cabinet. The PLC control system includes a controller, a power module, a communication module, an analog input module, and an analog output module. The operating system includes a human-machine interface touch screen. The low-voltage power distribution system includes a low-voltage power distribution control unit. The original signal input / output modules of the feeding conveyor, relay roller, circulating fan and discharge conveyor are respectively connected to the controller signals of the PLC control system; The power module is used to supply power to the PLC control system; The communication module is used for communication between the air separator and the user's operating instructions; The analog input module is connected to the controller signal and is used to receive analog signals transmitted from the working circuits of the feeding conveyor, relay roller, circulating fan and discharge conveyor and convert them into digital signals that the controller can read. The analog output module is connected to the controller signal and is used to receive digital signals sent by the controller and convert them into analog signals so that the feeding conveyor, relay roller, circulating fan and discharge conveyor can complete the instructions sent by the controller; The low-voltage power distribution control unit is used to convert the high-voltage electrical energy connected to the electrical control system into low-voltage electrical energy, and is used for the total power supply of the electrical control system. The human-machine interface touch screen is mounted on the surface of the main control cabinet and is used to receive user operation commands and transmit the user operation commands to the controller through the communication module.

2. The electrical control system for the air separation equipment according to claim 1, characterized in that, The PLC control system also includes a drive circuit, a backup circuit, and a response circuit between the controller and the power module.

3. The electrical control system for the air separation equipment according to claim 1, characterized in that, The main control cabinet is also equipped with a power indicator light, which is used to indicate that the air separation equipment is powered on.

4. The electrical control system for the air separation equipment according to claim 1, characterized in that, The low-voltage power distribution system converts externally connected high-voltage electrical energy into low-voltage electrical energy. When the connected circuit is a single-phase circuit, the converted voltage is 220V; when the connected circuit is a three-phase circuit, the converted voltage is 380V.

5. The electrical control system for the air separation equipment according to claim 1, characterized in that, The surface of the main control cabinet is made of carbon steel with a powder-coated finish.

6. The electrical control system for the air separation equipment according to claim 1, characterized in that, The main control cabinet is equipped with a protective door on the outer layer of the operating surface, and the protection level of the protective door is not lower than IP54.

7. The electrical control system for the air separation equipment according to claim 2, characterized in that, The main control cabinet is equipped with a three-color light on its top, which is yellow, green and red. The three-color light is electrically connected to the PLC control system. The yellow light indicates that the air classifier is in a ready state, the green light indicates that the air classifier is in a normal operating state, and the red light indicates that the air classifier is in a fault state.

8. The electrical control system for the air classifier according to claim 1, characterized in that, The main control cabinet is equipped with a rainproof brim on top.

9. The electrical control system for the air classifier according to claim 1, characterized in that, The PLC control system also includes a remote switching circuit, a maintenance circuit, and a local circuit between the controller and the power module.

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