A control system for an emulsion matrix vertical delivery device

Abstract

This utility model provides a control system for a vertical conveying device of emulsified matrix, belonging to the field of industrial explosives control. It includes a surface control system, an underground control system, and a fiber optic communication device. The surface control system comprises a control cabinet, an operation box, instrument sensors, connecting cables, and actuators. The control cabinet uses a programmable logic controller (PLC) for control, and simultaneously houses control elements and a frequency converter. The operation box provides a human-machine interface. The underground control system includes an operation cabinet, instrument sensors, and actuators. The operation cabinet contains a PLC and a human-machine interface. The fiber optic communication device is connected by a mining optical cable and a fiber optic transceiver. The fiber optic transceiver connects two PLCs (PLCs) on the surface and underground via a network cable, enabling data communication between the surface and underground. This system solves the problem of automated control and data communication for long-distance vertical conveying of emulsified matrix between the surface and underground, achieving bidirectional control of the feeding and discharging of emulsified matrix and sensitizer between the surface and underground.

Description

Technical Field

[0001] This invention provides a control system for a vertical conveying device for emulsion matrix, belonging to the field of control technology for industrial explosives. Background Technology

[0002] my country is rich in various mineral resources, both above and below ground, with numerous open-pit and underground mines throughout the country, providing fundamental resources for the development of the national economy and national defense. With the development of open-pit mining, hillside open-pit mines are becoming increasingly rare, gradually shifting to underground mining. The demand for on-site mixed emulsion explosives for underground use is constantly increasing. The raw materials for on-site mixed emulsion explosives include: emulsion matrix and sensitizer. Traditionally, there are two methods for delivering emulsion matrix underground: one is to transport it to the underground working face via a main shaft ramp using emulsion matrix transport vehicles, and the other is to deliver it to the underground working face via a vertical shaft elevator using ton containers. Vertical emulsion matrix conveying equipment is a device that can directly transport emulsion matrix and sensitizer stored on the surface to underground storage tanks through pipelines. However, the existing surface and underground control of vertical emulsion matrix conveying equipment is still independent, unable to achieve effective linkage control and data communication. Furthermore, conventional RS232, RS485, and network cable communication cannot meet the requirements for two-way communication over distances of hundreds or even kilometers, resulting in low conveying efficiency and affecting subsequent underground operations. Utility Model Content

[0003] To address the problem of low conveying efficiency caused by the separate control between existing surface emulsified matrix and sensitizer storage and transportation equipment and underground long-distance emulsified matrix vertical conveying equipment, this utility model proposes a control system for an emulsified matrix vertical conveying device. The purpose is to achieve bidirectional control of the feeding and discharging of emulsified matrix and sensitizer on the surface and underground by linking the control of the surface and underground equipment.

[0004] The technical solution adopted by this utility model is as follows: a control system for a vertical delivery device for emulsified matrix, including a ground control system and a downhole control system that communicate bidirectionally through an optical fiber communication device. The ground control system includes a control cabinet and an operation box. The downhole control system includes an operation cabinet. The control cabinet is equipped with a first central controller and a frequency converter. The first central controller is extended with a first analog module and a second analog module. The operation box is equipped with a first touch screen. The operation cabinet is equipped with a second central controller. The second central controller is extended with a third analog module. The operation cabinet is also equipped with a second touch screen.

[0005] The first central controller is connected to the instrument sensors on the ground emulsion matrix storage device and the ground emulsion matrix dispensing device through the first analog module.

[0006] The first central controller is connected to the instrument sensors on the ground sensitizer storage device, the ground emulsion matrix feeding device, and the ground emulsion matrix discharging device via the second analog module.

[0007] The input terminal of the first central controller is connected to the control terminal of the actuator on the ground emulsion matrix storage device, the ground sensitizer storage device, the ground emulsion matrix feeding device, the ground emulsion matrix discharging device, and the ground sensitizer feeding device.

[0008] The input terminal of the second central controller is connected to the control terminal of the actuator on the downhole emulsion matrix storage device and the downhole sensitizer storage device.

[0009] Furthermore, the instrument sensors installed on the ground emulsified matrix storage device include a first weighing instrument and a third temperature transmitter, and the actuators installed on the ground emulsified matrix storage device include a matrix tank ball valve;

[0010] The instrument sensors installed on the ground sensitizer storage device include a first level transmitter, and the actuators installed on the ground sensitizer storage device include a sensitizer ball valve;

[0011] The instrument sensors installed on the ground emulsified matrix feeding device include a first pressure transmitter, a first temperature transmitter, and a first speed sensor. The actuators installed on the ground emulsified matrix feeding device include a feeding screw pump and a feeding ball valve.

[0012] The instrument sensors installed on the ground emulsified matrix discharging device include a second temperature transmitter, a second pressure transmitter, and a second speed sensor. The actuators installed on the ground emulsified matrix discharging device include a discharging screw pump, a discharging ball valve, an air purging valve, and a pipeline pressure transmitter.

[0013] The actuators installed on the ground sensitizer feeding device include a sensitizer feeding pump.

[0014] Furthermore, the instrument sensors installed on the downhole emulsion matrix storage device include a second weighing instrument and a fourth temperature transmitter, and the actuators installed on the downhole emulsion matrix storage device include a first discharge ball valve;

[0015] The instrument sensors installed on the downhole sensitizer storage device include a second level transmitter, and the actuators installed on the downhole sensitizer storage device include a second discharge ball valve.

[0016] Furthermore, the surface emulsified matrix storage device is connected to the downhole emulsified matrix storage device via a vertical emulsified matrix delivery pipeline, and the surface sensitizer storage device is connected to the downhole sensitizer storage device via a vertical sensitizer delivery pipeline.

[0017] Furthermore, the power supply terminal of the control cabinet is connected to a three-phase power supply. After passing through the main circuit breaker, the three-phase power supply is connected in parallel to four circuits. The first circuit is connected to the power input terminal of the frequency converter after passing through the first branch circuit breaker. The control terminal of the frequency converter is connected to the power supply terminal of the discharge screw pump motor. The discharge screw pump motor also has a heat sink connected to it. The input terminal of the first contactor is also connected in parallel to the power input terminal of the frequency converter. The output terminal of the first contactor is connected to the power supply terminal of the discharge screw pump motor heat sink. The second circuit is connected to the power supply terminal of the feeding screw pump after passing through the second branch circuit breaker and in series with the second contactor. The third circuit is connected to the power supply terminal of the sensitizer feeding pump after passing through the third branch circuit breaker and in series with the third contactor. The fourth circuit is connected to the power output terminal of the transformer after passing through the fourth branch circuit breaker and in parallel with the power input terminals of the fifth, sixth, and seventh circuit breakers. The power output terminal of the fifth circuit breaker is connected to the switching power supply. The power output terminal of the sixth circuit breaker is connected to the contactor circuit. The output terminal of the seventh circuit breaker is connected to the guide rail socket.

[0018] Furthermore, the RJ45 interface of the first central controller is connected to the RJ45 interface of the first fiber optic transceiver in the ground control cabinet via a network cable, and the RJ45 interface of the second central controller is connected to the RJ45 interface of the second fiber optic transceiver in the underground operating cabinet via a network cable. The first and second fiber optic transceivers are connected via mining fiber optic cable. This enables data communication between the ground and underground central controllers.

[0019] Furthermore, the first central controller uses a PLC of model FX5U-64MR / DS, and the second central controller uses a PLC of model FX5U-32MR / DS.

[0020] The advantages of this invention compared to existing technologies are as follows: This invention connects two PLCs, one on the surface and one downhole, via an optical fiber communication device, enabling data communication between the two systems. It solves the problem of automated control and data communication for the vertical transport of emulsion matrix over long distances between the surface and the well, and allows for bidirectional control of the feeding and discharging of emulsion matrix and sensitizer between the surface and the well, thus improving the efficiency of the transport operation. Attached Figure Description

[0021] The present invention will be further described below with reference to the accompanying drawings:

[0022] Figure 1 Communication diagram of the control system of this utility model

[0023] Figure 2 This is the electrical schematic diagram of the ground power cabinet of this utility model;

[0024] Figure 3 Electrical principle of the ground PLC of this utility model Figure 1 ;

[0025] Figure 4 Electrical principle of the ground PLC of this utility model Figure 2 ;

[0026] Figure 5 Electrical principle of the ground PLC of this utility model Figure 3 ;

[0027] Figure 6 This is the electrical schematic diagram of the downhole PLC of this utility model. Detailed Implementation

[0028] like Figures 1 to 6 As shown, this utility model provides a control system for a vertical emulsified matrix conveying device, which is used in a vertical emulsified matrix conveying device. The vertical emulsified matrix conveying device includes a surface emulsified matrix storage device, a surface sensitizer storage device, an emulsified matrix water washing device, a surface emulsified matrix feeding device, a surface emulsified matrix discharging device, a surface sensitizer feeding device, a vertical emulsified matrix conveying pipeline, a vertical sensitizer conveying pipeline, a downhole emulsified matrix storage device, a downhole sensitizer storage device, and their corresponding control systems. The control system of this automated vertical emulsified matrix conveying device includes a surface control system, a downhole control system, and an optical fiber communication device.

[0029] The ground control system uses a Mitsubishi FX5U-64MR / DS PLC, with the PLC main unit expanded with FX5-CNV-BUS modules and FX3U-4AD analog modules. A 10-inch touchscreen is also provided.

[0030] The ground-based emulsified matrix feeding device includes a feeding pipeline and a feeding screw pump. The feeding pipeline is equipped with a first pressure transmitter and a first temperature transmitter, and the feeding screw pump is equipped with a first speed sensor. The ground-based emulsified matrix discharging device includes a discharging pipeline and a discharging screw pump. The discharging pipeline is equipped with a second temperature transmitter, a second pressure transmitter, an electric ball valve, and an air purge valve. The motor of the discharging screw pump has its speed controlled by a frequency converter and is equipped with a second speed sensor. The motor fan / radiator of the discharging screw pump is powered separately.

[0031] The ground emulsified matrix storage device includes a ground matrix tank. The inlet of the ground matrix tank is connected to the outlet of the feeding screw pump through a feeding pipeline. The inlet of the feeding screw pump is connected to the outlet of the emulsified matrix tanker through a pipeline. The outlet of the ground matrix tank is connected to the inlet of the discharge screw pump through a discharge pipeline. The ground matrix tank is equipped with a first weighing instrument and a third temperature transmitter.

[0032] The emulsified matrix water cleaning device includes cleaning pipelines and a water tank. The ground matrix tank is connected to the water tank via the cleaning pipelines. It can clean both the ground matrix tank and the delivery pipelines.

[0033] The ground sensitizer storage device includes a ground sensitizer storage tank and a sensitizer feeding pump. The ground sensitizer storage tank is equipped with a first level transmitter. The ground sensitizer storage tank is connected to one end of the sensitizer feeding pump through a sensitizer feeding pipeline. The other end of the sensitizer feeding pump is connected to the discharge port of the sensitizer tanker truck through a pipeline.

[0034] The touchscreen communicates with the PLC via an RS485 communication cable. It displays real-time status information such as material weight, temperature, liquid level, and conveying pressure in the tanks of the surface, pipelines, and downhole equipment, and features an alarm display function. It can perform operations such as substrate feeding, sensitizer feeding, substrate discharge, and sensitizer discharge. It can record the discharge volume and process parameters. Substrate discharge has two modes: "intermittent discharge" and "continuous discharge." In "intermittent discharge" mode, the intermittent discharge volume and air compression time can be adjusted.

[0035] The downhole control system uses a Mitsubishi FX5U-32MR / DS PLC, with the PLC main unit expanded with an FX5-CNV-BUS module and an FX3U-4AD analog module. A 10-inch touchscreen is also provided.

[0036] The downhole emulsified matrix storage device includes a downhole matrix tank. The inlet of the downhole matrix tank is connected to the output pipeline of the discharge screw pump via a pipeline. The downhole matrix tank is equipped with a second weighing instrument and a fourth temperature transmitter. A first discharge ball valve is installed on the pipeline connecting the downhole matrix tank and the surface matrix tank. A purge valve is also installed on the pipeline connected to the downhole matrix tank.

[0037] The downhole sensitizer storage device includes a downhole sensitizer storage tank, which is connected to a surface sensitizer storage tank via a sensitizer pipeline. A second discharge ball valve is installed on the sensitizer pipeline, and a second level transmitter is installed on the downhole sensitizer storage tank.

[0038] The touchscreen communicates with the PLC via an RS485 communication cable. It can display real-time status information such as material weight, temperature, liquid level, and conveying pressure in the tanks of the surface, pipelines, and downhole equipment, and also features an alarm display function. It can perform operations such as substrate discharge, sensitizer discharge, substrate loading, and sensitizer loading. It can record the discharge volume and process parameters during the discharge process.

[0039] The fiber optic communication device uses stranded, armored, waterproof, flame-retardant single-mode 4-core mining fiber optic cable and fiber optic transceivers for connection. The surface and underground control systems are connected via the PLC's RJ45 interface, network cable, fiber optic transceiver, and mining fiber optic cable to achieve communication between the surface and underground PLCs. Fiber optic communication overcomes the transmission distance limitations of traditional RS232, RS485, and network cable communication, enabling data communication at mine depths of hundreds of meters or even thousands of meters.

[0040] Regarding the specific structure of this utility model, it should be noted that the connection relationships between the various component modules adopted in this utility model are definite and achievable. Except as specifically described in the embodiments, their specific connection relationships can bring about corresponding technical effects and solve the technical problems proposed by this utility model without relying on the execution of corresponding software programs. The models of the components, modules, and specific components appearing in this utility model, the connection methods between them, and the conventional usage methods and expected technical effects brought about by the above-mentioned technical features, unless specifically described, are all publicly disclosed content in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by those skilled in the art before the application date, or belong to conventional technology, common knowledge, and other existing technologies in this field. There is no need to elaborate, which makes the technical solution provided in this case clear, complete, and achievable, and can reproduce or obtain corresponding physical products based on this technical means.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A control system for a vertical conveying device for emulsified matrix, characterized in that: The system includes a ground control system and a downhole control system that communicate bidirectionally via fiber optic communication devices. The ground control system includes a control cabinet and an operating box. The downhole control system includes an operating cabinet. The control cabinet contains a first central controller and a frequency converter. The first central controller is extended with a first analog module and a second analog module. The operating box is equipped with a first touch screen. The operating cabinet contains a second central controller. The second central controller is extended with a third analog module. The operating cabinet is also equipped with a second touch screen. The first central controller is connected to the instrument sensors on the ground emulsion matrix storage device and the ground emulsion matrix dispensing device through the first analog module. The first central controller is connected to the instrument sensors on the ground sensitizer storage device, the ground emulsion matrix feeding device, and the ground emulsion matrix discharging device via the second analog module. The second central controller is connected to the instrument sensors on the downhole emulsion matrix storage device and the downhole sensitizer storage device via the third analog module. The input terminal of the first central controller is connected to the control terminal of the actuator on the ground emulsion matrix storage device, the ground sensitizer storage device, the ground emulsion matrix feeding device, the ground emulsion matrix discharging device, and the ground sensitizer feeding device. The input terminal of the second central controller is connected to the control terminal of the actuator on the downhole emulsion matrix storage device and the downhole sensitizer storage device.

2. The control system for a vertical conveying device of an emulsion matrix according to claim 1, characterized in that: The instrument sensors installed on the ground emulsified matrix storage device include a first weighing instrument and a third temperature transmitter, and the actuators installed on the ground emulsified matrix storage device include a matrix tank ball valve; The instrument sensors installed on the ground sensitizer storage device include a first level transmitter, and the actuators installed on the ground sensitizer storage device include a sensitizer ball valve; The instrument sensors installed on the ground emulsified matrix feeding device include a first pressure transmitter, a first temperature transmitter, and a first speed sensor. The actuators installed on the ground emulsified matrix feeding device include a feeding screw pump and a feeding ball valve. The instrument sensors installed on the ground emulsified matrix discharging device include a second temperature transmitter, a second pressure transmitter, and a second speed sensor. The actuators installed on the ground emulsified matrix discharging device include a discharging screw pump, a discharging ball valve, an air purging valve, and a pipeline pressure transmitter. The actuators installed on the ground sensitizer feeding device include a sensitizer feeding pump.

3. The control system for a vertical conveying device of an emulsion matrix according to claim 1, characterized in that: The instrument sensors installed on the downhole emulsion matrix storage device include a second weighing instrument and a fourth temperature transmitter, and the actuators installed on the downhole emulsion matrix storage device include a first discharge ball valve; The instrument sensors installed on the downhole sensitizer storage device include a second level transmitter, and the actuators installed on the downhole sensitizer storage device include a second discharge ball valve.

4. The control system for a vertical conveying device for emulsified matrix according to claim 1, characterized in that: The surface emulsified matrix storage device is connected to the downhole emulsified matrix storage device via a vertical emulsified matrix delivery pipeline, and the surface sensitizer storage device is connected to the downhole sensitizer storage device via a vertical sensitizer delivery pipeline.

5. The control system for a vertical conveying device of an emulsified matrix according to claim 2, characterized in that: The control cabinet's power supply is connected to a three-phase power supply. After passing through the main circuit breaker, the three-phase power supply is connected in parallel to four circuits. The first circuit, after passing through the first branch circuit breaker, is connected to the power input of the frequency converter. The control terminal of the frequency converter is connected to the power supply of the discharge screw pump motor. The discharge screw pump motor also has a heat sink connected to it. The power input of the frequency converter is also connected in parallel to the input of the first contactor. The output of the first contactor is connected to the power supply of the discharge screw pump motor heat sink. The second circuit, after passing through the second branch circuit breaker, is connected in series with the second contactor and then to the power supply of the feeding screw pump. The third circuit, after passing through the third branch circuit breaker, is connected in series with the third contactor and then to the power supply of the sensitizer feeding pump. The fourth circuit, after passing through the fourth branch circuit breaker and the transformer, outputs power that is connected in parallel to the power inputs of the fifth, sixth, and seventh circuit breakers. The power output of the fifth circuit breaker is connected to the switching power supply. The power output of the sixth circuit breaker is connected to the contactor circuit. The output of the seventh circuit breaker is connected to the DIN rail socket.

6. The control system for a vertical conveying device of an emulsion matrix according to claim 1, characterized in that: The RJ45 interface of the first central controller is connected to the RJ45 interface of the first fiber optic transceiver in the ground control cabinet via a network cable. The RJ45 interface of the second central controller is connected to the RJ45 interface of the second fiber optic transceiver in the underground operation cabinet via a network cable. The first and second fiber optic transceivers are connected via mining fiber optic cables to realize data communication between the ground and underground central controllers.

7. The control system for a vertical conveying device of an emulsion matrix according to claim 6, characterized in that: The first central controller uses a PLC of model FX5U-64MR / DS, and the second central controller uses a PLC of model FX5U-32MR / DS.

Images