Automatic ore drawing device of ore drawing machine of multi-middle-section ore pass based on level gage

Abstract

The utility model discloses an automatic ore drawing device of a multi-middle-section ore pass ore drawing machine based on a level gage. The automatic ore drawing device comprises a data acquisition system, a field control system, a central control system and a signal transmission system. When ore drawing operation is carried out, the ore drawing machine can be automatically started and stopped according to the material level of the ore drawing mine only by setting the starting value and the stopping value of the material level of the ore drawing mine and setting the control of the ore drawing machine to be an automatic control mode, the continuous operation time is monitored, and if the continuous operation time is longer than the set time, the operation is stopped for a fixed time; and then starting is conducted again according to the material level condition of the draw shaft, equipment damage caused by long-time operation of the ore drawing machine is prevented, the manual mode is set as standby selection, and when manual operation is needed in special situations, manual control can be involved.

Description

Technical Field

[0001] The utility model relates to an automatic ore-feeding device for an ore-feeding machine, in particular to an automatic ore-feeding device for an ore-feeding machine for a multi-middle-section ore chute based on a material level meter. Background Art

[0002] As an important equipment in mining production, the vibrating ore-dumping machine plays an important role in the ore transportation process. The start and stop of the traditional vibrating ore-dumping machine are generally controlled by manual operation buttons on site. During the ore-dumping process, personnel need to observe with the naked eye continuously, and there is a lot of noise and dust near the ore-dumping machine, which poses a serious threat to the health of the operators. In addition, the chute position control is entirely based on the operator's experience or the use of a heavy hammer for measurement. During the ore-dumping process, the chute material level data cannot be obtained in real time. The well position control is difficult. There is a risk of blockage caused by improper chute material level control, too deep well position, large drop of newly entered ore, and compaction of ore in the well. When using a heavy hammer to measure at the chute mouth, there is a risk of falling into the well or being hit by objects, and frequent measurements have a high labor intensity. When there are multiple middle sections for ore-dumping, each middle section must be assigned a dedicated person to ditch the ore, which requires a large number of personnel, and the middle sections need to frequently contact and confirm, resulting in low production efficiency. Utility Model Content

[0003] The utility model aims to provide an automatic ore-discharging device for a ore-discharging machine in a multi-middle chute ore chute based on a material level meter, so as to solve the problems existing in the above-mentioned background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] An automatic ore-feeding device for ore-feeding machines in multiple middle-section chutes based on a material level meter comprises a data acquisition system, a field control system, a central control system and a signal transmission system, wherein the data acquisition system comprises a radar material level meter and an explosion-proof camera arranged just above each middle-section chute, and is used to collect material level information in each middle-section chute; the field control system comprises a field PLC, which is used to preliminarily process and upload the information collected by the radar material level meter and the explosion-proof camera, and receive and execute a mine-parking instruction issued by the central control system; the central control system comprises a main control PLC and a host computer, wherein the main control PLC is used to reprocess the material level information preliminarily processed by the field PLC and upload it to the host computer for display, and receive and execute a mine-parking instruction issued by the host computer; the host computer is responsible for displaying the video image and the material level, and transmitting the operation instruction to the main control PLC; the signal transmission system comprises a switch, an optical fiber transceiver and a communication optical fiber, and is used to transmit various information between the data acquisition system, the field control system and the central control system.

[0006] Compared with the prior art, this practical information has the following beneficial effects:

[0007] The utility model solves the drawback that the ore placing machines in the middle sections of the ore chutes must be operated by dedicated personnel at the ore placing machines, eliminates the problems of large manpower consumption, low production efficiency, inability to obtain the material level in the ore chutes in real time, and high risk factor in the measurement process, and keeps operators away from dusty environments, reduces the labor intensity of employees, improves the working environment, reduces labor costs, and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 It is a structural schematic diagram of the utility model.

[0009] Figure 2 The utility model is a schematic diagram of the working principle of the mine starting and releasing device. DETAILED DESCRIPTION

[0010] The utility model is further explained below in conjunction with the accompanying drawings.

[0011] like Figure 1 As shown, an automatic ore-discharging device for ore-discharging machines in multiple middle-section chutes based on a material level meter includes a data acquisition system, a field control system, a central control system and a signal transmission system, wherein the data acquisition system includes a radar material level meter and an explosion-proof camera arranged directly above each middle-section chute, for collecting material level information in each middle-section chute; the field control system includes a field PLC, for preliminarily processing and uploading the information collected by the radar material level meter and the explosion-proof camera, and receiving and executing the parking instruction issued by the central control system; the central control system includes a main control PLC and a host computer, the main control PLC is used to reprocess the material level information preliminarily processed by the field PLC and upload it to the host computer for display, and receive and execute the parking instruction issued by the host computer; the host computer is responsible for displaying the video screen and the material level, and transmitting the operation instruction to the main control PLC; the signal transmission system includes a switch, an optical fiber transceiver and a communication optical fiber, and is used to transmit various information between the data acquisition system, the field control system and the central control system.

[0012] Specifically, the radar level meter collects material level information and converts it into analog signals for transmission to the on-site PLC. The on-site PLC preliminarily processes the received analog signals and converts them into electrical signals, which are then transmitted to the central control system via the signal transmission system for recalculation. The explosion-proof camera converts the collected images of the chute into electrical signals, which are then transmitted to the central control system via the signal transmission system. The switch located on-site is connected to the on-site PLC and the explosion-proof camera, and transmits the collected electrical signals to the optoelectronic transceiver, which converts the electrical signals into optical signals and transmits them to the central control system. A set of optoelectronic transceivers and switches are also provided at the front end of the central control system. The optoelectronic transceiver converts the optical signals into electrical signals, which are then connected to the main control PLC and the host computer via the switch.

[0013] Each middle section of the chute is equipped with a vibrating ore-discharging machine at the top and bottom, wherein the vibrating ore-discharging machine at the top is used to discharge ore into the chute, and the vibrating ore-discharging machine at the bottom is used to discharge the accumulated ore in the chute. For example, there are three vibrating ore-discharging machines between middle section one and middle section two. The vibrating ore-discharging machine at the top of the middle section one chute is used to discharge ore into the middle section one chute, a vibrating ore-discharging machine is set at the bottom of the middle section one chute, i.e., the top of the middle section two chute, to discharge ore into the middle section two chute, a vibrating ore-discharging machine is set at the bottom of the middle section two chute, i.e., the top of the middle section three chute, to discharge ore into the middle section three chute, and so on…

[0014] The specific working process of the utility model is as follows:

[0015] Assuming that there are three middle sections, when ore discharge operations are required, it is only necessary to turn on the host computer, start the operation screen and the video monitoring screen, convert the ore discharge control mode to automatic mode, set the starting material level and stop material level of the first chute of the middle section, set the stop material level of the second chute of the middle section, and the main control PLC calculates according to the material level information collected by the data acquisition system and the material level data set by the host computer, and sends the start and stop instructions of the second vibrating ore discharger of the middle section to the on-site PLC, which is controlled and executed by the on-site PLC; set the starting material level and stop material level of the second chute of the middle section, and set the stop material level of the third chute of the middle section. The main control PLC calculates according to the material level information collected by the data acquisition system and the material level data set on the host computer operation screen, and sends the start and stop instructions of the third vibrating ore discharger of the middle section to the on-site PLC, which is controlled and executed by the on-site PLC.

[0016] The specific start and stop principle of the vibration ore discharger is as follows Figure 2 As shown, after the on-site PLC receives the start-up ore-feeding machine signal from the central control system, the intermediate relay KA coil is energized, the KA normally open point is closed, the contactor KM coil is energized, the KM normally open point is closed, and the ore-feeding machine is started; after receiving the stop-up ore-feeding machine signal from the central control system, the intermediate relay KA coil is de-energized, the KA normally open point is disconnected, the contactor KM coil is de-energized, the KM normally open point is disconnected, and the ore-feeding machine is stopped. The utility model sets two control modes, local and remote, and can be switched to local control in time in case of emergency.

[0017] The master PLC and field PLC described in this article refer to PLC controllers, and the rest of the parts not fully described adopt equivalents or similar ones in the prior art that achieve the same functions / roles.

Claims

1. An automatic ore-discharging device for a multi-stage ore-discharging machine based on a material level meter, characterized in that: It includes a data acquisition system, a field control system, a central control system and a signal transmission system. The data acquisition system includes a radar level meter and an explosion-proof camera arranged just above each middle section chute, which are used to collect the material level information in each middle section chute; the field control system includes a field PLC, which is used to preliminarily process and upload the information collected by the radar level meter and the explosion-proof camera, and receive and execute the mine parking instructions issued by the central control system; the central control system includes a main control PLC and a host computer, the main control PLC is used to reprocess the material level information preliminarily processed by the field PLC and upload it to the host computer for display, and receive and execute the mine parking instructions issued by the host computer; the host computer is responsible for displaying the video screen and the material level, and transmitting the operation instructions to the main control PLC; the signal transmission system includes a switch, an optical fiber transceiver and a communication optical fiber, which are used to transmit various information between the data acquisition system, the field control system and the central control system.

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