A safe automatic protection isolation and alarm system for underground mine chute communication passage

Abstract

The utility model discloses an underground mine mine chute liaison path safety automatic protection isolation and alarm system relates to mine safety production protection isolation technical field, the utility model discloses a power control unit, safety protection isolation unit, voice reminding and audible -visual alarm unit, the utility model replaces the original steel protection isolation door with a virtual infrared grating, carries out effective isolation and protection detection to chute liaison path, and the personnel and vehicle of entering chute liaison path are carried out real -time automatic detection, and timely provide voice, audible -visual alarm, remind personnel and vehicle not to approach chute around, realized to the virtual isolation and on -line protection detection of mine chute liaison path, has simplified the installation procedure, has saved the investment and manpower cost, has reduced the labor intensity of worker.

Description

Technical Field

[0001] This utility model relates to the field of mine safety production protection and isolation technology, and in particular to an automatic safety protection, isolation and alarm system for underground mine chute connecting passages. Background Technology

[0002] Currently, steel protective barriers are installed in suitable areas of the ore and waste rock chute connecting passages to prevent personnel from freely entering the ore and waste rock chute connecting passages and approaching the chute. The protective barriers divide the chute connecting passage into "safe areas" and "unsafe areas." The side closer to the chute is the "unsafe area," and the side closer to the ore exit roadway in the production panel is the "safe area." The protective barriers are opened when the chute is normally shoveling ore or waste rock, and locked at other times. Personnel and vehicles are strictly prohibited from approaching the area around the chute. However, the frames and fences of the protective barriers are made of steel pipes, which results in high investment costs, a large amount of installation work, and a large space occupation. In addition, it is inconvenient to test the effectiveness of the protection. Utility Model Content

[0003] To address the aforementioned technical problems, this utility model provides an automatic safety protection, isolation, and alarm system for underground mine chute connecting passages, which solves the technical problems of existing steel pipe protective isolation doors, such as high investment costs, large space occupation, cumbersome installation, and inconvenient protection and detection.

[0004] To achieve the above objectives, the technical solution of this utility model is as follows: An automatic safety protection, isolation, and alarm system for underground mine chute connecting passages includes a power control unit, a safety protection and isolation unit, and a voice reminder and audible and visual alarm unit. The power control unit includes a transformer, with a double circuit breaker connected to both ends of the transformer. One end of the double circuit breaker is connected in sequence to a stop button, a start button, and a contactor coil, and then connected to the other end of the double circuit breaker. The start button is connected in parallel to the first normally open auxiliary contact of the contactor. The safety protection isolation unit includes an infrared grating. The two input terminals of the infrared grating are connected to the two ends of the double circuit breaker through the first normally open main contact and the second normally open main contact of the contactor. The output of the infrared grating is divided into two branches. One branch is connected to the first normally open auxiliary contact of the relay and then connected to the input terminal of the infrared grating. The other branch is connected to the alarm reset button and the relay coil in sequence and then connected to the other input terminal of the infrared grating. The voice reminder and audible-visual alarm unit includes a voice reminder and audible-visual alarm device. One end of the voice reminder and audible-visual alarm device is connected to the output terminal of the first normally open auxiliary contact of the relay via the second normally open auxiliary contact of the relay, and then connected to the input terminal of the infrared grating. The other end is connected to the output terminal of the relay coil, and then connected to the other input terminal of the infrared grating.

[0005] Furthermore, the power control unit also includes an indicator light, one end of which is connected to the first normally open main contact of the contactor via the second normally open auxiliary contact of the contactor, and the other end is connected to the second normally open main contact of the contactor.

[0006] Compared with the prior art, the beneficial effects of this utility model are: This invention replaces the original steel protective isolation door with a virtual infrared grating, effectively isolating and protecting the mine chute connecting passage. It automatically detects personnel and vehicles entering the chute connecting passage in real time and provides timely voice and visual alarms to remind personnel and vehicles not to approach the area around the chute. It realizes virtual isolation and online protection detection of the "safe area" and "unsafe area" of the mine chute connecting passage, simplifies the installation process, saves investment and labor costs, and reduces the labor intensity of workers. Attached Figure Description

[0007] Figure 1 This is a schematic diagram of the constituent units of this utility model; Figure 2 This is the electrical schematic diagram of this utility model; In the picture: 1. Transformer; ZK, Double-pole circuit breaker; TA, Stop button; QA, Start button; K, Contactor coil; K-1, First normally open auxiliary contact of contactor; K-2, Second normally open auxiliary contact of contactor; K-3, First normally open main contact of contactor; K-4, Second normally open main contact of contactor; H1, Indicator light; 2. Infrared grating; KA, Relay coil; JA, Alarm reset button; 3. Voice prompt and audible and visual alarm; KA-1, First normally open auxiliary contact of relay; KA-2, Second normally open auxiliary contact of relay. Detailed Implementation

[0008] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0009] like Figure 1-2 As shown, an automatic safety protection isolation and alarm system for underground mine chute connecting passages includes a power control unit, a safety protection isolation unit, and a voice reminder and audible and visual alarm unit; The power control unit includes a transformer 1, with a double circuit breaker ZK connected to both ends of the transformer 1. One end of the double circuit breaker ZK is connected in sequence to a stop button TA, a start button QA, and a contactor coil K, and then connected to the other end of the double circuit breaker ZK. The start button QA is connected in parallel to the first normally open auxiliary contact K-1 of the contactor. When the start button QA is pressed, the coil of the contactor K is energized, and the first normally open auxiliary contact K-1 of the contactor closes.

[0010] The safety protection isolation unit includes an infrared grating 2. The two input terminals of the infrared grating 2 are connected to the two ends of a double-pole circuit breaker ZK via the first normally open main contact K-3 and the second normally open main contact K-4 of a contactor. When the start button QA is pressed, the coil of contactor K is energized, and the first normally open main contact K-3 and the second normally open main contact K-4 of the contactor close. The output of the infrared grating 2 splits into two branches. One branch connects to the first normally open auxiliary contact KA-1 of a relay and then to the input terminal of the infrared grating. The other branch is connected in sequence to an alarm... The reset button JA and the relay coil KA are connected to the other input terminal of the infrared grating. When the infrared grating 2 outputs an action signal to the relay coil KA, the relay coil KA is energized, and its first normally open auxiliary contact KA-1 triggers the voice and sound and light alarm 3 to sound an alarm. When the alarm reset button JA is pressed, the relay coil KA is de-energized, and its first normally open auxiliary contact KA-1 is opened. The infrared grating 2 includes a transmitter and a receiver, which are installed opposite to each other, and the grating isolation protection height of the infrared grating 2 is 2.2 meters.

[0011] The voice reminder and sound and light alarm unit includes a voice reminder and sound and light alarm 3. One end of the voice reminder and sound and light alarm 3 is connected to the output terminal of the first normally open auxiliary contact KA-1 of the relay via the second normally open auxiliary contact KA-2 of the relay, and then connected to the input terminal of the infrared grating 2. The other end is connected to the output terminal of the relay coil KA, and then connected to the other input terminal of the infrared grating 2.

[0012] The power control unit also includes a signal lamp H1. One end of the signal lamp H1 is connected to the first normally open main contact K-3 of the contactor through the second normally open auxiliary contact K-2 of the contactor, and the other end is connected to the second normally open main contact K-4 of the contactor. When the contactor K coil is energized, the first normally open main contact K-3 and the second normally open main contact K-4 of the contactor close, and the signal lamp H1 lights up.

[0013] While the loader is shoveling ore or waste rock into the chute, power is supplied to transformer 1, the double circuit breaker ZK is closed, and the stop button TA is pressed. Contactor K coil is de-energized, and the first normally open main contact K-3 and the second normally open main contact K-4 of the contactor open. The safety protection isolation unit and the voice reminder and audible-visual alarm unit are de-energized and stop detection, allowing the loader to operate normally. At other times, pressing the start button QA energizes contactor K coil, closing the first normally open main contact K-3 and the second normally open main contact K-4. Signal light H1 illuminates, and the safety protection isolation unit and the voice reminder and audible-visual alarm unit are energized. Infrared grating 2 performs real-time detection of personnel and vehicles crossing the "safe zone" into the "unsafe zone." When personnel or vehicles cross the "safe zone" into the "unsafe zone," the infrared grating 2 outputs an action signal to the relay coil KA, energizing the relay coil KA. Its first normally open auxiliary contact KA-1 and second normally open auxiliary contact KA-2 close, triggering the voice and audible-visual alarm 3 to issue a voice reminder and audible-visual alarm stating "You have entered a danger zone, please evacuate immediately," reminding personnel and vehicles not to approach the area around the chute to prevent falls. After personnel evacuate and retreat to the "safe zone," pressing the alarm reset button JA de-energizes the relay coil KA, causing its first normally open auxiliary contact KA-1 and second normally open auxiliary contact KA-2 to open. The voice reminder and audible-visual alarm are then de-energized, and the alarm is automatically deactivated.

[0014] This invention replaces the original steel protective isolation door with a virtual infrared grating, effectively isolating and protecting the mine chute connecting passage. It automatically detects personnel and vehicles entering the chute connecting passage in real time and provides timely voice and visual alarms to remind personnel and vehicles not to approach the area around the chute. It realizes virtual isolation and online protection detection of the "safe area" and "unsafe area" of the mine chute connecting passage, simplifies the installation process, saves investment and labor costs, and reduces the labor intensity of workers.

[0015] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic safety protection, isolation, and alarm system for underground mine chute connecting passages, characterized in that: Includes a power control unit, a safety protection and isolation unit, and a voice prompt and audible and visual alarm unit; The power control unit includes a transformer (1), and a double circuit breaker (ZK) is connected to both ends of the transformer (1). One end of the double circuit breaker (ZK) is connected to a stop button (TA), a start button (QA) and a contactor coil (K) in sequence, and then connected to the other end of the double circuit breaker (ZK). The start button (QA) is connected in parallel to the first normally open auxiliary contact (K-1) of the contactor. The safety protection isolation unit includes an infrared grating (2). The two input terminals of the infrared grating (2) are connected to the two ends of the double circuit breaker (ZK) through the first normally open main contact (K-3) and the second normally open main contact (K-4) of the contactor. The output of the infrared grating (2) is divided into two branches. One branch is connected to the first normally open auxiliary contact (KA-1) of the relay and then connected to the input terminal of the infrared grating. The other branch is connected to the alarm reset button (JA) and the relay coil (KA) in sequence and then connected to the other input terminal of the infrared grating (2). The voice reminder and sound and light alarm unit includes a voice reminder and sound and light alarm device (3). One end of the voice reminder and sound and light alarm device (3) is connected to the output end of the first normally open auxiliary contact (KA-1) of the relay through the second normally open auxiliary contact (KA-2) of the relay and then connected to the input end of the infrared grating (2). The other end is connected to the output end of the relay coil (KA) and then connected to the other input end of the infrared grating (2).

2. The automatic safety protection, isolation, and alarm system for underground mine chute connecting passages according to claim 1, characterized in that: The power control unit also includes a signal lamp (H1), one end of which is connected to the first normally open main contact (K-3) of the contactor via the second normally open auxiliary contact (K-2), and the other end is connected to the second normally open main contact (K-4) of the contactor.

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