Automatic control device for mine dust fall

Abstract

The utility model belongs to the technical field of control, and particularly relates to an automatic control device for mine dust fall, which is characterized in that a central controller generates a control signal based on dust concentration detected by a dust detection module, and a signal amplification module amplifies the generated control signal so as to drive a relay to be closed; therefore, the automatic dust falling in the mining process is realized, and the pollution to the environment and the harm to the body of field staff can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of control, and in particular relates to an automatic control device for dust reduction in mines. Background Art

[0002] Dust is a major hazard in mining operations, with mining operations generating 80% of the dust and shipping generating 20%. Dust's main hazards include pneumoconiosis, dust explosions, accelerated wear and aging of machinery and equipment, and environmental pollution. Pneumoconiosis poses the most significant threat to worker health. Therefore, automated dust reduction in mining operations is urgently needed. Summary of the Invention

[0003] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides an automatic dust reduction control device for mines, which realizes automatic dust reduction during mining, helps to avoid pollution to the environment and physical harm to on-site workers.

[0004] The specific steps of the utility model are as follows:

[0005] In order to realize the above technical solution, the utility model provides a mine dust reduction automation control device, which includes a dust detection module, a central controller, a signal amplification module, a relay, a power supply module and a spray system;

[0006] The power module is connected to the sprinkler system through a relay;

[0007] The dust detection module and the signal amplification module are both connected to the central controller;

[0008] The signal amplification module is also connected to the relay.

[0009] Furthermore, the signal amplification module includes: a first capacitor C1, a first end of the first capacitor C1 is connected to the central controller, a second end of the first capacitor C1 is connected to the first end of the first resistor R1 and pin 3 of the operational amplifier U1; and a second end of the first resistor R1 is grounded;

[0010] Pin 2 of the operational amplifier U1 is connected to the first end of the second resistor R2 and the first end of the third resistor R3; the second end of the second resistor R2 is grounded;

[0011] Pin 4 of the operational amplifier U1 is grounded; Pin 1 of the operational amplifier U1 is connected to the first end of the fourth resistor R4 and the second end of the third resistor R3; the second end of the fourth resistor R4 is connected to the first end of the fifth resistor R5 and Pin 1 of the second operational amplifier U2;

[0012] Pin 2 of the second operational amplifier U2 is connected to the first end of the sixth resistor R6 and the first end of the ninth resistor R9; the second end of the sixth resistor R6 is grounded;

[0013] Pin 3 of the second operational amplifier U3 is connected to the first power supply V1, and pin 4 of the second operational amplifier U2 is connected to the first end of the seventh resistor R7, the first end of the eighth resistor R8, and the second end of the ninth resistor R9; the second end of the eighth resistor R8 is connected to the first end of the second capacitor C2;

[0014] The second end of the seventh resistor R7 is connected to the base of the first transistor Q1 ; the collector of the first transistor Q1 is connected to the relay; the emitter of the first transistor Q1 and the second end of the second capacitor C2 are grounded.

[0015] Furthermore, the central controller adopts 89C51 single chip microcomputer.

[0016] Furthermore, the device also includes a wireless communication module, and the wireless communication module is connected to the central controller.

[0017] Furthermore, the dust detection module includes a dust concentration PM2.5 sensor, a laser dust concentration sensor and a PM10 sensor.

[0018] The beneficial effects of the utility model are:

[0019] (1) The present invention generates a control signal through a central controller based on the dust concentration detected by the dust detection module, and the signal amplification module amplifies the generated control signal to drive the closure of the relay, so that the spraying system is powered and sprays, thereby realizing automatic dust reduction during the mining process, which helps to avoid pollution to the environment and physical harm to on-site workers.

[0020] (2) The signal amplification module of the present invention uses two operational amplifiers for amplification, which helps to ensure that the relay is closed accurately.

[0021] Advantages of additional aspects of the present invention will be partially given in the following description, and partially become apparent from the following description, or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0023] Figure 1 The present invention is a schematic diagram of the electrical principle of an embodiment of an automatic control device for dust reduction in mines.

[0024] Figure 2 This is a circuit diagram of an embodiment of the signal amplification module of the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present invention. Unless otherwise specified, each technical and scientific term used in this embodiment has the same meaning as commonly understood by ordinary maintenance personnel in the technical field to which the present invention belongs.

[0027] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0028] In the present invention, terms such as "upper", "lower", "left", "right", "front", "back", "vertical", "horizontal", "side", "bottom", etc. indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. They are merely relational words determined for the convenience of describing the structural relationships of the various parts or elements of the present invention, and do not specifically refer to any part or element in the present invention, and cannot be understood as a limitation on the present invention.

[0029] In this utility model, terms such as "fixed connection," "connected," and "connection" should be interpreted broadly to mean a fixed connection, an integral connection, or a detachable connection; a direct connection or an indirect connection through an intermediary. Researchers or maintenance personnel in this field may determine the specific meaning of these terms in this utility model based on their specific circumstances, and they should not be construed as limiting this utility model.

[0030] Example 1:

[0031] like Figure 1 As shown, this embodiment provides a mine dust reduction automatic control device, including a dust detection module 1, a central controller 2, a signal amplification module 3, a relay 5, a power supply module 4 and a spray system 6.

[0032] The power module 4 is used to provide power to the spray system 6 so that the spray system can operate.

[0033] The power module 4 is connected to the spray system 6 via the relay 5, so that when the relay 5 is closed, the power provided by the power module 4 is transmitted to the spray system 6, so that the spray system 6 operates.

[0034] The dust detection module 1 is used to detect the dust concentration in the mine.

[0035] The central controller 2 is connected to the dust detection module 1 to obtain the dust concentration detected by the dust detection module 1 and generate a control signal based on the detected dust concentration.

[0036] The signal amplifying module 3 is connected to the central controller 2 to amplify the generated control signal.

[0037] The signal amplifying module 3 is connected to the relay 5 to control the closing of the relay 5 based on the amplified control signal, so that the power supply module 4 is connected to the spray system 6 for communication, and then the spray system 6 starts to work.

[0038] In this embodiment, the signal amplification module 3 includes: a first capacitor C1, a first end of the first capacitor C1 is connected to the central controller, a second end of the first capacitor C1 is connected to the first end of the first resistor R1 and pin 3 of the operational amplifier U1; and a second end of the first resistor R1 is grounded.

[0039] Pin 2 of the operational amplifier U1 is connected to a first end of the second resistor R2 and a first end of the third resistor R3 ; a second end of the second resistor R2 is grounded.

[0040] Pin 4 of the operational amplifier U1 is grounded; Pin 1 of the operational amplifier U1 is connected to the first end of the fourth resistor R4 and the second end of the third resistor R3; The second end of the fourth resistor R4 is connected to the first end of the fifth resistor R5 and Pin 1 of the second operational amplifier U2.

[0041] Pin 2 of the second operational amplifier U2 is connected to the first end of the sixth resistor R6 and the first end of the ninth resistor R9; the second end of the sixth resistor R6 is grounded.

[0042] Pin 3 of the second operational amplifier U3 is connected to the first power supply V1, and pin 4 of the second operational amplifier U2 is connected to the first end of the seventh resistor R7, the first end of the eighth resistor R8, and the second end of the ninth resistor R9. The second end of the eighth resistor R8 is connected to the first end of the second capacitor C2.

[0043] The second end of the seventh resistor R7 is connected to the base of the first transistor Q1 ; the collector of the first transistor Q1 is connected to the relay; the emitter of the first transistor Q1 and the second end of the second capacitor C2 are grounded.

[0044] Working principle: When the central controller detects that the dust concentration is greater than the preset dust concentration through the dust detection module, the central controller sends a pulse signal, which is amplified by the first operational amplifier U1 and the second operational amplifier U2 and sent to the first transistor, causing the first transistor to turn on, and then the relay to close, thereby transmitting the power provided by the power supply module to the sprinkler system, so that the sprinkler system can work.

[0045] In this embodiment, the dust detection module includes a dust concentration PM2.5 sensor, a laser dust concentration sensor, and a PM10 sensor.

[0046] In this embodiment, the central controller may be a 89C51 single chip microcomputer.

[0047] In this embodiment, the device further includes a wireless communication circuit connected to the central controller to transmit the acquired dust concentration to the control center via the wireless communication circuit. The wireless communication circuit is a WiFi communication circuit.

[0048] In this specification, the same or similar parts between the various embodiments can be referred to each other. In particular, for the terminal embodiment, since it is basically similar to the method embodiment, the description is simple to compare, and the relevant parts can be referred to the description in the method embodiment.

[0049] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. For maintenance personnel in this field, the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. A mine dust reduction automatic control device, characterized in that: Includes dust detection module, central controller, signal amplification module, relay, power module and spray system; The power module is connected to the sprinkler system through a relay; The dust detection module and the signal amplification module are both connected to the central controller; The signal amplification module is also connected to the relay.

2. The mine dust reduction automatic control device according to claim 1, characterized in that: The signal amplification module includes: a first capacitor C1, a first end of the first capacitor C1 is connected to the central controller, a second end of the first capacitor C1 is connected to the first end of the first resistor R1 and pin 3 of the operational amplifier U1; and a second end of the first resistor R1 is grounded; Pin 2 of the operational amplifier U1 is connected to the first end of the second resistor R2 and the first end of the third resistor R3; the second end of the second resistor R2 is grounded; Pin 4 of the operational amplifier U1 is grounded; Pin 1 of the operational amplifier U1 is connected to the first end of the fourth resistor R4 and the second end of the third resistor R3; the second end of the fourth resistor R4 is connected to the first end of the fifth resistor R5 and Pin 1 of the second operational amplifier U2; Pin 2 of the second operational amplifier U2 is connected to the first end of the sixth resistor R6 and the first end of the ninth resistor R9; the second end of the sixth resistor R6 is grounded; Pin 3 of the second operational amplifier U3 is connected to the first power supply V1, and pin 4 of the second operational amplifier U2 is connected to the first end of the seventh resistor R7, the first end of the eighth resistor R8, and the second end of the ninth resistor R9; the second end of the eighth resistor R8 is connected to the first end of the second capacitor C2; The second end of the seventh resistor R7 is connected to the base of the first transistor Q1 ; the collector of the first transistor Q1 is connected to the relay; the emitter of the first transistor Q1 and the second end of the second capacitor C2 are grounded.

3. The mine dust reduction automatic control device according to claim 1, characterized in that: The central controller adopts 89C51 single chip microcomputer.

4. The mine dust reduction automatic control device according to claim 1, characterized in that: The device further comprises a wireless communication module, and the wireless communication module is connected to the central controller.

5. The mine dust reduction automatic control device according to claim 1, characterized in that: The dust detection module includes a dust concentration PM2.5 sensor, a laser dust concentration sensor and a PM10 sensor.

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