CN217602701U

CN217602701U - Mine underworkings dust device

Info

Publication number: CN217602701U
Application number: CN202221023583.6U
Authority: CN
Inventors: 胡铁峰; 黄伯辰; 雷镓玮
Original assignee: Jinchuan Group Co Ltd
Current assignee: Jinchuan Group Nickel Cobalt Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-10-18
Anticipated expiration: 2032-04-29

Abstract

The utility model discloses a mine underworkings dust device, which comprises a water pipeline and an annular water pipe, wherein one end of the water pipeline is communicated with a main water supply pipeline, the other end of the water pipeline is communicated with the annular water pipe, and the water pipeline is sequentially provided with a water inlet valve, a water outlet valve and a straight-through electromagnetic valve; the straight-through electromagnetic valve is controlled by an automatic control system; the tunnel top inner wall is located to the annular water pipe, and the equidistance is equipped with a plurality of through-holes on the annular water pipe and is used for communicateing water atomization nozzle, the annular water pipe other end and exhaust-valve intercommunication. The device controls the water flow state in the annular water pipe through the automatic control system of the straight-through electromagnetic valve, further controls the working state of the water atomization spray head, realizes the purpose of automatically controlling the work of the dust settling device, and is economical, practical and resource-saving.

Description

Mine underworkings dust device

Technical Field

The utility model relates to a mining machinery equipment field, concretely relates to mine underworkings dust device.

Background

During mining, more smoke and dust can be generated. Along with the mine underground excavation depth moves down, the underground excavation working face is increased, the demand of underground material and materials is increased, vehicles for conveying the material and materials are increased, in the conveying process, the vehicle-mounted materials have large dust, and the dust brought by the vehicles in the driving process can diffuse into a roadway to cause serious environmental pollution, and meanwhile, the exhaust emission of the vehicles exceeds the standard, the exhaust pollution is serious, and the pollution can harm the health of workers.

In the initial stage of mine construction, an earth surface air return system can be installed underground in a mine, but due to the fact that the construction time is long, the air return capacity is weak, dust cannot be timely discharged out of the earth surface, and the original earth surface air return system cannot meet the requirements of underground ventilation in the current stage. A large amount of dust suspends in underworkings, causes the tunnel air quality poor, seriously harms the healthy of workman in the pit, greatly increased workman suffers from the probability of occupational disease, still can influence the normal passage of haulage vehicle and pedestrian when polluting seriously.

The general dust settling method is as follows: the dust fall of watering is carried out tunnel ground with the watering lorry, reduces the production of dust in the tunnel, reduces the dust pollution that the vehicle produced at the in-process of traveling. The method can reduce the dust on the ground of the roadway to a certain extent, but cannot play a role of dust fall on the dust suspended in the space of the roadway, and the actual using effect is not ideal. And watering dust fall can make the tunnel form ponding in the watering lorry, and vehicle, pedestrian travel easily take place incident such as sideslip, tumble injury on the slope that has ponding.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mine underworkings dust device to reduce the dust of suspension in ground dust and the air in the mine underworkings simultaneously, avoid dust pollution to influence the workman healthily.

The utility model relates to a mine underworkings dust device, which comprises a water pipeline and an annular water pipe, wherein one end of the water pipeline is communicated with a main water supply pipeline, the other end of the water pipeline is communicated with the annular water pipe, and the water pipeline is sequentially provided with a water inlet valve, a water outlet valve and a straight-through electromagnetic valve; the direct-connection electromagnetic valve is controlled by an automatic control system, the automatic control system comprises a circuit breaker QF, one end of the circuit breaker QF is connected with a power supply, the other end of the circuit breaker QF is divided into four parallel branches, a first branch is connected with a double-delay cycle control time relay KT in series, a second branch is connected with a time relay delay normally-open contact KT-1 and an intermediate relay KA in series in sequence, a third branch is connected with the intermediate relay normally-open contact KA-1 and a direct-connection electromagnetic valve YV in series in sequence, and a fourth branch is connected with the intermediate relay normally-open contact KA-2 and an indicator lamp HL in series in sequence; the inner wall of the top of the roadway is arranged on the annular water pipe, and a plurality of through holes are arranged on the annular water pipe at equal intervals and used for communicating the water atomization nozzles.

Preferably, a filter is arranged on a water pipeline between the water inlet valve and the water outlet valve.

Preferably, the end part of the annular water pipe, which is far away from the main water supply pipeline, is provided with an emptying valve.

Preferably, the water outlet direction of the water atomization spray head is perpendicular to the direction of the roadway bottom plate.

Preferably, the water atomization spray head is welded in the through hole at the bottom of the annular water pipe.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. this device is equipped with annular water pipe at tunnel top inner wall, and the equidistance is equipped with a plurality of water atomization shower nozzles on the annular water pipe, realizes the tunnel dust fall through atomizing water spray, will suspend the dust in the tunnel and handle, the water economy resource, atomizing dust fall is effectual, can not cause surface gathered water moreover, avoids taking place the incident.

2. The device drives the opening and closing actions of the direct electromagnetic valve in the electric control loop by setting the working and stopping time of the double-delay circulation control time relay, controls the water flow state in the annular water pipe, further controls the working state of the water atomization spray head, and sends out an operation indicating signal to realize the purpose of automatically controlling the work of the dust settling device.

3. Be equipped with water intaking valve and outlet valve on the water pipeline of this device, can be according to actual need nimble control inflow, prevent that the more tunnel construction environment that influences of water spray, install the filter between water intaking valve and the outlet valve moreover, realize accurate filtration, annular water pipe and water atomization nozzle can also be protected to the filter, only need regularly change the filter core and can accomplish the plant maintenance, economical and practical conveniently overhauls, can prolong whole dust device's life.

4. The utility model discloses a tunnel dust device combines the electrical control return circuit, can high-efficiently accomplish tunnel dust device automatic control work, and the device can satisfy the requirement of main tunnel in the pit, segmentation way, branch ramp, fan station dust fall, and the range of application is wide, is particularly useful for the abominable workplaces of air quality such as main haulage roadway in the pit, return airway, stope.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of the circuit control of the apparatus of the present invention;

in the figure: 1-a water inlet valve; 2-a filter; 3-a water outlet valve; 4-a straight-through electromagnetic valve automatic control system; 5-an annular water pipe; 6-water atomization spray head; 7-an evacuation valve; 8-water line;

circuit elements: the circuit breaker QF, the double-delay cycle control time relay KT, the time relay delay normally-open contact KT-1, the intermediate relay KA, the intermediate relay normally-open contact KA-1, the intermediate relay normally-open contact KA-2, the direct-connection solenoid valve YV, the indicator lamp HL, the single-phase alternating current 220v power supply contact L and the single-phase alternating current 220v power supply contact N.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

as shown in fig. 1-2, the utility model relates to a mine underworkings dust device, including water pipeline 8 and annular water pipe 5, water pipeline 8 one end is linked together with the main water supply pipeline, and the other end is linked together with annular water pipe 5, is equipped with water intaking valve 1, filter 2, outlet valve 3 and direct solenoid valve 4 on the water pipeline 8 in proper order. The direct-connection electromagnetic valve 4 is controlled by an automatic control system, the automatic control system comprises a circuit breaker QF, one end of the circuit breaker QF is connected with a power supply, the other end of the circuit breaker QF is divided into four parallel branches, a first branch is connected with a double-delay cycle control time relay KT in series, a second branch is connected with a time relay delay normally-open contact KT-1 and an intermediate relay KA in series in sequence, a third branch is connected with the intermediate relay normally-open contact KA-1 and the direct-connection electromagnetic valve YV in series in sequence respectively, and a fourth branch is connected with the intermediate relay normally-open contact KA-2 and an indicator lamp HL in series in sequence. Annular water pipe 5 is fixed to be located tunnel inner wall apart from vault 200mm department, and 5 bottoms of annular water pipe are evenly equipped with a plurality of through-holes at an interval 600mm department, and welded seven water atomization nozzles 6 in the through-hole, 6 play water directions of water atomization nozzles are perpendicular to tunnel bottom plate direction, and annular water pipe 5 keeps away from main water supply line one end tip and is equipped with blowoff valve 7.

When the water inlet valve 1 and the water outlet valve 3 normally open, the water inlet valve and the water outlet valve can be closed during maintenance, and the maintenance is convenient. The emptying valve 7 is a sewage discharge valve and is connected with the tail end of the annular water pipe 5, and the main effect is that when impurities exist in the annular water pipe 5 of the dust settling device, the impurities in the pipeline can be discharged and cleaned.

When the device is used, the water inlet valve 1 and the water outlet valve 3 of the main pipeline water outlet are opened, the emptying valve 7 is closed, the breaker QF control power supply is switched on, the KT coil of the double-delay cycle control time relay is electrified, the time relay delay normally-open contact KT-1 is closed, the intermediate relay KA coil is driven to be electrified, the intermediate relay normally-open contact KA-1 is closed, the direct solenoid valve YV coil is driven to be electrified, the direct solenoid valve YV is opened, water flows into the annular water pipe 5, the water atomization nozzle 6 starts to work, generated water mist washes suspended dust in a roadway space, the suspended dust is taken away, the roadway dust concentration is reduced, roadway air is purified, meanwhile, the intermediate relay normally-open contact KA-2 is closed, and the indicator light HL is bright.

And setting a double-delay cycle control time relay KT to work for 30 minutes, and taking a rest for 10 minutes as a cycle. After the water atomization spray head 6 works for 30 minutes, the time relay KT coil is controlled to be powered off in a double-delay circulation mode, the time relay delay normally-open contact KT-1 is disconnected, the intermediate relay KA coil is powered off, the intermediate relay normally-open contact KA-1 is disconnected, the through electromagnetic valve YV coil is powered off, the through electromagnetic valve YV is closed, water flow stops entering the annular water pipe 5, the water atomization spray head 6 stops working, meanwhile, the intermediate relay normally-open contact KA-2 is disconnected, and the indicator lamp HL is turned off. After the time of rest for 10 minutes, the KT coil of the double-delay cycle control time relay is electrified, the contact of the time relay delay normally-open contact KT-1 is closed, the KA coil of the intermediate relay is electrified, the normally-open contact KA-1 of the intermediate relay is closed and opened, the YV coil of the direct solenoid valve is electrified, the YV of the direct solenoid valve is opened, water flow enters the annular water pipe 5, the water atomization spray head 6 works, meanwhile, the normally-open contact KA-2 of the intermediate relay is closed, and the indicator lamp HL is bright. After working for 30 minutes, the process of complaint is automatically repeated, and the purpose of automatically controlling the dust-settling device is achieved.

Claims

1. The utility model provides a mine underworkings dust device which characterized in that: the water supply device comprises a water pipeline (8) and an annular water pipe (5), wherein one end of the water pipeline (8) is communicated with a main water supply pipeline, the other end of the water pipeline is communicated with the annular water pipe (5), and a water inlet valve (1), a water outlet valve (3) and a through electromagnetic valve (4) are sequentially arranged on the water pipeline (8); the direct-connection electromagnetic valve (4) is controlled by an automatic control system, the automatic control system comprises a circuit breaker QF, one end of the circuit breaker QF is connected with a power supply, the other end of the circuit breaker QF is divided into four parallel branches, a first branch is serially connected with a double-delay cycle control time relay KT, a second branch is serially connected with a time relay delay normally-open contact KT-1 and an intermediate relay KA in sequence, a third branch is serially connected with the intermediate relay normally-open contact KA-1 and a direct-connection electromagnetic valve YV in sequence respectively, and a fourth branch is serially connected with the intermediate relay normally-open contact KA-2 and an indicator lamp HL in sequence; the inner wall of the top of the roadway is arranged on the annular water pipe (5), and a plurality of through holes are formed in the annular water pipe (5) at equal intervals and used for communicating the water atomization nozzles (6).

2. The mine underground roadway dust settling device of claim 1, wherein: a filter (2) is arranged on a water pipeline (8) between the water inlet valve (1) and the water outlet valve (3).

3. The mine underground roadway dust settling device of claim 1, wherein: an end part of the annular water pipe (5) far away from one end of the main water supply pipeline is provided with an emptying valve (7).

4. The mine underground roadway dust settling device according to any one of claims 1 to 3, wherein: the water outlet direction of the water atomization spray head (6) is perpendicular to the direction of the roadway bottom plate.

5. The mine underground roadway dust settling device of claim 4, wherein: and the water atomization spray head (6) is welded in a through hole at the bottom of the annular water pipe (5).