KR102083354B1 - Multifunctional Dust Collecting Apparatus and Sealing Type Tunnel Ventilation Method - Google Patents

Abstract

The present invention relates to a dust collector for collecting dirt or dust scattered in a tunnel or the like where blasting or excavation is performed. The dust collector comprises: a lower housing (100) forming a lower body and having a space in which components are to be installed; a main suction unit (110) provided at a rear end portion of the lower housing (100) to suck the dirt or dust scattered; a filter unit (120) installed to be separated from an inner lower surface of the lower housing (100) by a predetermined height to filter out dust contained in sucked air; an above-filter partition unit (130) which is installed above the filter unit (120) and has a plurality of air passages (131) as a passage of the air which rises while passing through the filter unit (120); an upper housing (200) installed in an upper portion of the lower housing (100) to form an upper body, and having a space in which components are to be installed; a main discharge unit (210) provided at a front end portion of the upper housing (200) to discharge, to the outside, the air introduced through the filter unit (120) and the air passages (131) into the upper housing (200); and a blowing fan (220) installed inside the upper housing (200) to generate airflow toward the main discharge unit (210) while rotating by a motor. The dust collector can efficiently collect or remove scattered dirt or dust through spraying with a filter and at the same time, can prevent contamination of an electric apparatus.

Description

Multifunctional Dust Collecting Apparatus and Sealing Type Tunnel Ventilation Method

The present invention relates to a dust collector used in a tunnel or the like where blasting or excavation is performed, and various functions that are not provided in a conventional dust collector are integrally provided to improve the performance of equipment, effectively minimize dust while maintaining maintenance and maintenance costs and time. It is characterized by being able to be captured.

In general, when excavating and constructing a new tunnel, the rock is broken into small pieces using dynamite, and then dug using an excavator and a hammer drill to construct the tunnel. When such blasting or excavation works, a huge amount of dust is generated. It is generated, and dust is scattered into the air in the tunnel, which is a factor that interferes with the worker's working field of view, as well as direct damage to breathing.

In order to solve this problem, fresh outside air is introduced into the tunnel due to a pressure difference by introducing fresh outside air into the tunnel to push air mixed with dust out of the tunnel or by inhaling air in the tunnel where dust is mixed. It needs to be done.

In this process, a blower fan is used as a means for generating air flow. When the air inside the tunnel is circulated using only the blower fan, dust generated inside the tunnel is released to the outside to increase air pollution.

Therefore, in order to prevent air pollution due to dust in the air discharged from the tunnel, a separate dust collecting means (dust collector) is required, and a general dust collector collects dust generated inside the tunnel (dust mixed in air) and filters it with a filter. In this process, the following problems have been continuously raised.

First, among the multiple filters installed inside the dust collector, the filter load is concentrated with some filters installed at the outlet side, and thus the operation efficiency of the equipment rapidly decreases, thereby increasing the time and cost for maintenance and maintenance.

Second, there is a problem in that the dust or dust scattered by the filter alone is not sufficiently removed, thereby impairing the working environment or polluting the outside atmosphere, and as shown in FIG. 1, a method of spraying water inside the dust collector to increase the filtering effect (registration) Patent No. 10-0682470) has been developed, but the air containing moisture passes through the periphery of the blower fan 31 operated by the motor, causing serious problems that contaminate the electric devices including the motor.

Third, there is a problem in that it is difficult to actively cope depending on the working environment because the shape and direction of the inlet for collecting dust or dust are fixed.

Fourth, as shown in Fig. 7 (a), the existing ventilation method (air dust collection method) is installed so that the inner end of the wind pipe is located relatively close to the tunnel curtain compared to the dust collector. There is a problem that can not be.

[Advanced technical literature]

Registered Patent No. 10-0682470

Registered Patent No. 10-1219669

The object of the present invention created to solve the above problems is as follows.

First, it is an object of the present invention to provide a dust collector of a new concept that can efficiently prevent or contaminate an electric device while simultaneously collecting or removing scattering dust or dust through spraying together with a filter.

Second, it is another object of the present invention to provide a dust collector of a new concept capable of preventing a phenomenon in which the filtration load is not concentrated with some filters and a plurality of filters share the filtration load so that the operation efficiency of the equipment is rapidly reduced within a short time. do.

Third, another object of the present invention is to provide a dust collector of a new concept that can adjust the direction and height of the suction port for collecting dust or dust according to the working environment or conditions.

Fourth, another object of the present invention is to provide a dust collector of a new concept equipped with a means for instantaneous cleaning of a filter using compressed air when the filtration efficiency decreases.

Fifth, it is another object of the present invention to completely treat blasting dust by providing a ventilation method of a new concept of the airtight sealing method rather than the conventional air collecting method.

The technical configuration of the present invention created to achieve the above object is as follows.

The present invention relates to a dust collector for collecting dust or dust scattered in a tunnel or the like where blasting or excavation is performed, while forming a lower body, a lower housing 100 provided with spaces for mounting components therein; A main suction unit 110 provided at a rear end of the lower housing 100 to suck scattering dust or dust; A filter unit 120 installed at a predetermined height away from the inner lower surface of the lower housing 100 to filter dust contained in the inhaled air; It is installed on the upper portion of the filter unit 120, the upper portion of the filter partition 130 is provided with a plurality of air passages 131 to be a passage of the air rising while passing through the filter unit 120; It is installed on the upper portion of the lower housing 100, while forming an upper body, the upper housing 200 is provided with a space for mounting components therein; It is provided at the front end of the upper housing 200, the main discharge unit 210 for discharging the air flowing into the upper housing 200 through the filter unit 120 and the air passage 131 to the outside ; And a blower fan 220 installed inside the upper housing 200 and generating air flow toward the main discharge part 210 while rotating by a motor. do.

In addition, the present invention relates to a tunnel ventilation method using a multifunctional dust collector,

Multifunctional dust collector 310; A wind pipe 320 installed along the inside of the tunnel to supply fresh outside air into the tunnel; And, provided on the outer end of the wind pipe 320, the main air ventilation fan 330 for introducing fresh outside air into the wind pipe 320; using, but the multi-function dust collector 310 is not affected by blasting at the tunnel end It is installed at a position spaced apart by a distance, and the inner end of the wind pipe 320 is located at the rear of the multifunctional dust collector 310, so that the relative distance from the tunnel end is farther than the multifunctional dust collector 310.

Technical effects according to the configuration of the present invention are as follows.

First, it is possible to efficiently collect or remove scattering dust or dust through spraying with a filter, and at the same time prevent contamination of the electric device.

Second, the filtration load is not concentrated with some filters, and multiple filters share the filtration load, so that the operation efficiency of the equipment can be prevented from rapidly decreasing within a short time.

Third, the dust collection efficiency can be maximized by adjusting the direction and height of the suction port for collecting dust or dust according to the working environment or conditions.

Fourth, if the filtration efficiency decreases, the filter can be instantaneously cleaned using compressed air, thereby extending the operating time of the equipment and minimizing maintenance and maintenance time and frequency.

Fifth, as the fresh air from the outside flows into the wind pipe 320 of the main ventilation fan 330, the multi-function dust collector collects dust and blast dust generated in the close direction toward the close direction to maximize the sealing and dust collection efficiency of the generated dust. Can be.

1 shows one example of the prior art as an example.
Figure 2 is a specific embodiment of the present invention showing the entire cross-sectional structure as viewed from the side, showing the case where the air passage opening and closing portion 140 is not applied.
Figure 3 shows the structure of the air passage opening and closing portion 140.
4 shows a pump 235 and waterline 230 applied to a specific embodiment of the present invention.
5 shows the compressor 245 and the compressed air line 240.
6 shows the ring gear 111 and the first pinion gear 112 of the main suction part 110.
Fig. 7 schematically shows a ventilation method, (a) shows a conventional air transmission dust collection method, and (b) the present invention, the air transmission sealing method, respectively.

Hereinafter, specific embodiments of the present invention will be described with reference to the accompanying drawings.

The present invention relates to a dust collector for collecting dust scattered in a tunnel or the like where blasting or excavation is performed, and the overall structure is schematically illustrated in FIG. 2.

The lower housing 100 forms the lower body of the present invention and provides an internal space in which components are mounted.

The main suction unit 110 is provided at the rear end of the lower housing 100 to serve as an entrance for suctioning scattering dust or dust.

The filter unit 120 is installed to be spaced a predetermined height from the inner lower surface of the lower housing 100 and serves to filter dust contained in the inhaled air.

That is, a space separated by a predetermined distance is formed between the inner lower surface of the lower housing 100 and the lower end of the filter unit 120, and the main suction unit 110 is connected to this space, and the main suction unit 110 The air (air containing dust or dust) introduced into the space formed inside the lower portion of the lower housing 100 diffuses inside the space and is filtered while passing through some of the plurality of filters constituting the filter unit 120. .

In addition, although not separately shown in the accompanying drawings, a plurality of openings and closings for introducing air into the space formed inside the lower housing 100 separately from the main suction unit 110 along the lower end of the lower housing 100 may be provided.

The upper part of the filter part 130 is installed on the upper part of the filter part 120, as shown in FIGS. 2 and 3, there are a plurality of air passages 131 that are passages of the air that has risen while passing through the filter part 120. It is a plate-shaped structure provided.

The air passage 131 may be opened and closed as needed by the air passage opening and closing part 140, and FIG. 3 shows the structure of the air passage opening and closing part 140 installed on the upper part of the upper partition part 130 of the filter.

The air passage opening and closing portion 140 shown in FIG. 3 is installed in the front-rear direction on the upper portion of the sliding door 141, which is a plate-shaped structure, and the upper part of the filter upper partition 130, thereby guiding the behavior of the sliding door 141. ), A second pinion consisting of a second pinion gear 143 mounted on the sliding door 141 and operated by a motor, and a rack gear 144 installed in the front-rear direction along the upper part of the filter upper partition part 130. When the gear 143 is engaged with the rack gear 144, and the second pinion gear 143 is rotated by a motor, the sliding door 141 moves in the front-rear direction along the guide groove 142 to selectively select some air passages. Can be closed with

The guide portion 142 is not limited to the shape shown in FIG. 3 and is a structural surface capable of guiding the sliding door 141 to enable stable sliding.

The reason why the air passage opening / closing part 140 is provided is a phenomenon in which the filtration load is concentrated with a filter arranged near the main discharge part 210 of the upper housing 200 among the plurality of filters constituting the filter part 120. This is to prevent.

In other words, when an upward airflow occurs due to the operation of the blower fan 220, a relatively strong upward airflow is induced in the vicinity of the main discharge unit 210, so that more air passes through the filter disposed near it, and thus, before other places. There is a problem that the entire filter is clogged and cannot be used evenly. When the air passage 131 is opened and closed while the air passage opening and closing portion 140 is reciprocated in the front-rear direction according to a preset cycle, ascending airflow is concentrated only to a filter at a specific position And can use the entire filters arranged in parallel evenly, minimizing the time and frequency of stopping the equipment for maintenance or maintenance.

The upper housing 200 is installed on the upper portion of the lower housing 100 to form an upper body and provides an internal space in which components are mounted.

The main discharge unit 210 is provided at the front end portion of the upper housing 200 to pass through the filter unit 120 and the air passage 131 to serve as a passage for discharging air introduced into the upper housing 200 to the outside. do.

The blowing fan 220 is installed inside the upper housing 200 and rotates by a motor to generate air flow toward the main discharge unit 210.

As described above, when air flow toward the main discharge unit 210 is generated, an upward air flow is induced inside the lower housing 100, and air introduced through the main suction unit 110 of the lower housing 100 (fly dust or dust) The included air) is filtered while passing through the filter unit 120 and then flows into the upper housing 200 and is discharged to the outside through the main discharge unit 210.

Figure 4 shows the pump 235 and the water line 230 applied to a specific embodiment of the present invention, the water line 230 is disposed along the outer rim of the main discharge unit 210 as a piping structure through which water passes do.

The water line 230 is provided with a plurality of water spray nozzles 231 spraying water to the outside of the main discharge unit 210 at a predetermined interval.

The pump 235 serves to supply water to the water line 230, and may be configured to be installed with a separate water tank outside the upper housing 200 or the lower housing 100, or the upper housing 200 ) Or the inside of the lower housing 100 may be configured to be installed with a water tank.

When water is sprayed through the rim of the main discharge part 210 as described above, dust or dust that has not been filtered in the filter part 120 can be removed by being adsorbed to water sprayed with fine particles and falling.

5 shows a compressor 245 and a compressed air line 240 applied to a specific embodiment of the present invention, the compressor 245 is installed inside the upper housing 200 to generate compressed air, and the compressed air line ( 240) is connected to the compressor 245, a plurality of compressed air injection nozzles 241 for discharging compressed air is provided at a position corresponding to the air passage 131 of the filter upper partition 130, the filter unit 120 ) Serves to inject compressed air toward each filter constituting).

In this way, when compressed air is injected from the top of the filter unit 120 toward the bottom, dust or dust adhering to the filter may be removed during the filtration process to restore the filter function.

6 shows the ring gear 111 and the first pinion gear 112 of the main suction part 110.

The main suction unit 110 is manufactured in a cylindrical shape as a whole, and one side of the main suction unit 110 is rotatably coupled to the vertical surface of the rear end of the lower housing 100.
The other side of the main suction part 110 is extended to form an upward slope, and the cross-section of the inlet side of the cylindrical tube forming the upward slope is cut to form an inclined surface.

The ring gear 111 is mounted along one side of the main suction part 110 that is rotatably coupled to the rear end vertical surface of the lower housing 100, and the first pinion gear 112 is the rear end of the lower housing 100. It is mounted on and engaged with the ring gear 111, and rotates by a motor.

Therefore, the direction of the inlet end surface of the main suction unit 110, in which dust is sucked while the main suction unit 110 rotates in conjunction with rotation of the first pinion gear 112, is adjusted to suit the working environment or conditions. Dust collection efficiency can be doubled through proper setting.

In addition, it is installed on the lower portion of the lower housing 100 is further included in the lift table 150 to move up and down the lower housing 100 by the operation of the cylinder, the height adjustment is possible with the direction adjustment of the main suction unit 110, Dust collection efficiency can be further increased.

7 (b) shows a tunnel ventilation method (airtight sealing method) using a multi-function dust collector, compared to the ventilation method of the conventional air blower dust collecting method shown in FIG. 7 (a), the position of the inner end of the wind pipe and the dust collector You can see that the installation locations are different.

The multi-function dust collector 310 used in the ventilation method of the airtight sealing method shown in FIG. 7 (b) is already described in the description of the present invention, and thus a separate description is omitted.

The wind pipe 320 is installed along the inside of the tunnel to serve to supply fresh outdoor air into the tunnel, and the main ventilation fan 330 is provided at the outer end of the wind pipe 320 to introduce fresh outdoor air into the wind pipe 320 It plays a role.

Here, the multifunctional dust collector 310 is installed at a position spaced apart by a distance not to be affected by blasting at the tunnel end (for example, a distance of about 100M from the tunnel end), and the inner end of the wind pipe 320 has a multifunctional dust collector 310. Located at the rear (for example, a distance of about 150M from the tunnel end), the relative distance from the tunnel end is farther than the multifunctional dust collector 310, and fresh fresh air supplied as fresh air is supplied into the tunnel through the wind pipe 320 It is possible to maximize the dust collection efficiency using the multifunctional dust collector 310 while effectively preventing the blast dust from diffusing into the tunnel while forming the barrier film.

As described above, specific embodiments of the present invention have been described with reference to the accompanying drawings, but the protection scope of the present invention is not necessarily limited to these embodiments, and various design changes and announcements are made within the scope of not changing the technical gist of the present invention. Even in the case of addition or deletion of technology, simple numerical limitation, etc., it is apparent that it falls within the protection scope of the present invention.

100: lower housing
110: main suction
111: ring gear
112: first pinion gear
120: filter unit
130: upper part of the filter
131: air passage
140: air passage switch
141: sliding door
142: guide
143: second pinion gear
144: rack gear
150: lift table
200: upper housing
210: main discharge unit
220: blower fan
230: Water line
231: water spray nozzle
235: Pump
240: compressed air line
241: compressed air injection nozzle
245: Compressor
310: multi-function dust collector
320: Wind pipe
330: ventilation fan

Claims (6)

As a dust collector that collects dust or dust scattered in a tunnel where blasting or excavation is performed,
While forming the lower body, the lower housing 100 is provided with a space for mounting components therein;
A main suction unit 110 provided at a rear end of the lower housing 100 to suck scattering dust or dust;
A filter unit 120 installed at a predetermined height away from the inner lower surface of the lower housing 100 to filter dust contained in the inhaled air;
It is installed on the upper portion of the filter unit 120, the upper portion of the filter partition 130 is provided with a plurality of air passages 131 to be a passage of the air rising while passing through the filter unit 120;
It is installed on the upper portion of the lower housing 100, while forming an upper body, the upper housing 200 is provided with a space for mounting components therein;
It is provided at the front end of the upper housing 200, the main discharge unit 210 for discharging the air flowing into the upper housing 200 through the filter unit 120 and the air passage 131 to the outside ;
A blowing fan 220 installed inside the upper housing 200 to generate air flow toward the main discharge unit 210 while rotating by a motor; And,
As a plate-like structure as a whole, it is mounted on the upper portion of the filter upper partition portion 130 of the lower housing 100, and moves in the front-rear direction along the filter upper partition portion 130 to close some of the air passages 131 or Air passage opening and closing portion 140 that serves to open;
Multifunctional dust collector comprising a. As a dust collector that collects dust or dust scattered in a tunnel where blasting or excavation is performed,
While forming the lower body, the lower housing 100 is provided with a space for mounting components therein;
A main suction unit 110 provided at a rear end of the lower housing 100 to suck scattering dust or dust;
A filter unit 120 installed at a predetermined height away from the inner lower surface of the lower housing 100 to filter dust contained in the inhaled air;
It is installed on the upper portion of the filter unit 120, the upper portion of the filter partition 130 is provided with a plurality of air passages 131 to be a passage of the air rising while passing through the filter unit 120;
It is installed on the upper portion of the lower housing 100, while forming an upper body, the upper housing 200 is provided with a space for mounting components therein;
It is provided at the front end of the upper housing 200, the main discharge unit 210 for discharging the air flowing into the upper housing 200 through the filter unit 120 and the air passage 131 to the outside ; And,
A blowing fan 220 installed inside the upper housing 200 to generate air flow toward the main discharge unit 210 while rotating by a motor;
Including,
The main suction unit 110,
It is manufactured in the shape of a cylindrical tube as a whole, and one side is rotatably coupled to the vertical surface of the rear end of the lower housing 100, the other side extends to form an upward slope, and the inlet side section of the cylindrical tube forming an upward slope forms an inclined surface. Being cut,
A ring gear 111 mounted along one side of the main suction part 110 rotatably coupled to a vertical surface of a rear end of the lower housing 100; And,
A first pinion gear 112 mounted on the rear end of the lower housing 100 and meshing with the ring gear 111 and rotating by a motor;
Is included more,
The multi-functional dust collector characterized in that the direction of the inlet side cross-section of the main suction unit 110 in which dust is sucked while the main suction unit 110 rotates in conjunction with rotation of the first pinion gear 112 is rotated. . In claim 1 or 2,
A compressor 245 installed inside the upper housing 200 to generate compressed air;
A plurality of compressed air injection nozzles 241 that are connected to the compressor 245 and discharge compressed air are provided at positions corresponding to the air passages 131 of the upper portion of the filter 130 to filter the filter 120 Compressed air line 240 for spraying compressed air toward);
A water line 230 disposed along an outer rim of the main discharge part 210 and provided with a plurality of water spray nozzles 231 spraying water to the outside of the main discharge part at predetermined intervals; And,
A pump 235 for supplying water to the water line 230;
Multifunctional dust collector characterized in that it is further included. In claim 1 or 2,
A lift table 150 installed at a lower portion of the lower housing 100 to lift and lower the lower housing 100 by operation of a cylinder;
Multifunctional dust collector characterized in that it is further included. A tunnel ventilation method using a multifunctional dust collector,
The multifunctional dust collector 310 according to claim 1 or 2;
A wind pipe 320 installed along the inside of the tunnel to supply fresh outside air into the tunnel; And,
A main ventilation fan 330 provided at an outer end of the wind pipe 320 to introduce fresh outside air into the wind pipe 320;
Use
The multi-function dust collector 310 is installed at a position spaced apart by a distance not to be affected by blasting at the tunnel end,
Sealed tunnel ventilation method using a multi-function dust collector, characterized in that the inner end of the wind pipe (320) is located at the rear of the multi-function dust collector (310) and the relative distance from the tunnel end is farther than the multi-function dust collector (310).
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