KR20100046378A - Device for removing impurities - Google Patents

Abstract

PURPOSE: A dust collector is provided to easily discharge dust using the weight of the dust and the collision force of a protector, and to prevent damage to a filter using a protector. CONSTITUTION: A dust collector comprises a protector unit(200), a filter unit(300), and a fan unit(500). The protector unit has a dust suction port(210), a dust discharge port(230), and a protector(220). The dust suction port inhales dust generated when a drill rod is excavated. The dust discharge port discharges the dust to outside. The protector guides the dust to the dust discharge port. The filter unit filters air inhaled through the dust suction port and the protector unit. The fan unit generates pressure for inhaling the dust.

Description

Dust collector {DEVICE FOR REMOVING IMPURITIES}

The present invention relates to a dust collecting device, in particular to the dust collecting device that can keep the working environment clean by preventing dust, such as gravel, soil, foreign matters generated when drilling the ground by rotating the drill rod of the self-propelled rock drill. It is about.

In general, countless dusts are generated during drilling by rock drills in mines, construction workshops, and quarries. Dust collectors are installed to prevent air pollution due to these dusts and to prevent the health of the rock drill operator and the environmental pollution around the workplace.

One of the dust collectors is a mobile dust collector installed in a self-propelled rock drill such as a crawler drill and moved together. The mobile dust collecting device should be designed to be compact in size so that it can be mounted at a desired position of the crawler drill, and the weight or maintenance convenience of the device should be considered, and the mobile dust collecting device should be designed to exhibit a predetermined dust collecting performance even when moving.

In the conventional dust collector, when the dust generated during drilling is sucked into the dust collector, the heavy dust such as stone or gravel is contacted with the filtration filter without distinguishing it from the small dust such as earth and sand, and the life of the filtration filter is reduced or filtered. There was a limit to poor performance. In addition, there is a problem that the filter is easily broken by the dust flowing in at high speed directly collides with the filter. However, in the present invention, the rigid and reliable protector is primarily in contact with the dust, so that the heavy load is first filtered by gravity and impact force, and the small-weight dust that is not first removed by the protector is filtered through the filter. This improves it.

In addition, conventionally, there is a problem in that the reliability of the device is deteriorated by being stuck to the moving part of the moving part or the dust is not provided as a means for blocking them when a lot of moisture or high adhesion dust is introduced. The present invention has been improved by providing a means for protecting the moving parts or moving passages by blocking the movement of dust if necessary.

On the other hand, although there was a conventional limitation that no means for cleaning dust adhered to the filter is provided, the present invention provides a means for cleaning the filter by shaking the filter, and more preferably, the filter cleaning means operates in a state in which suction of the dust is blocked. This greatly improved the cleaning performance of the filter.

The dust collecting device of the present invention is a dust suction port for sucking dust generated during drilling of the drill rod, the dust discharge port for discharging the dust to the outside, the dust suction port and the dust discharge port facing the dust to be sucked by the collision A protector unit having a protector for introducing dust to the dust outlet; A filter unit for filtering the air sucked through the protector unit; A fan unit generating a negative pressure for suction of the dust; Is arranged sequentially from the bottom of the housing.

In one embodiment, the dust inlet is formed on the side of the housing and the dust outlet is formed in the lower portion of the housing and the protector is inclined with respect to the dust inlet, so that the dust impacts and gravity against the protector It falls in the direction of the dust outlet.

In one embodiment, the flexible hose is connected to the dust outlet, and when the negative pressure is generated by the fan unit, the flexible hose is compressed to close the dust outlet.

In an embodiment, the fan unit may be operated by a rotating fan, a fan inlet for sucking air in the housing into the fan, a fan outlet for discharging the air outside the housing, and an actuator to open and close the fan inlet. A first gate is provided, and the first gate closes the fan inlet in order to prevent damage of the fan due to incorporation of foreign matter or to block negative pressure generation inside the housing.

In one embodiment, the dust collecting device comprises a pulsing unit for cleaning the filter unit by shaking; It further includes.

In one embodiment, the pulsing unit shakes off the filter unit by injecting high pressure air to the filter unit when the negative pressure generation inside the housing is blocked.

In one embodiment, the pulsing unit is provided as a separate component in the housing an air tank for storing high pressure air, an air valve for opening and closing the air tank, an air nozzle for injecting the high pressure air when opening the air valve, the An air duct for guiding the injected high pressure air to the filter unit is provided.

In one embodiment, the pulsing unit shakes off the filter unit by injecting high pressure air into the filter unit during the time when the drilling is stopped.

In one embodiment, the filter unit is provided with a filter that one side is fitted to the filter fixing portion, the other side is tightened with the filter fixing screw and the inside is connected to the fan unit, and the door is sealed by the packing and locked by the rocker The filter is replaced.

According to the present invention, the dust collector is designed in a compact structure and is easy to attach and detach to the self-propelled rock drill, and can easily discharge the dust primarily by the impact force of the protector and the weight of the dust, and damage the filter by the collision of the dust. It can be prevented by the protector, it is possible to improve the pulsing efficiency of the filter by blowing high-pressure air from the inside of the filter to the outside, and to suppress the extent to which the rotating fan is damaged by the rising inflow of dust.

In addition, since the pulsing operation is performed in a state in which the negative pressure inside the housing is removed, the filter is prevented from being damaged and easily discharged even in the case of dust having high adsorption force. Prevents damage to the fan unit due to inflow.

In addition, by providing a dedicated air tank for pulsing the dust collector, it is possible to improve the controllability of the pulsing operation and the pulsing pressure, and to affect the operation control of the rock drill compared to the embodiment using the pneumatic device on the rock drill main body side. Can be blocked at source.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In this process, the size or shape of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms that are specifically defined in consideration of the configuration and operation of the present invention may vary depending on the intention or custom of the user or operator. Definitions of these terms should be made based on the contents throughout the specification.

1 is a perspective view showing the structure of a self-propelled rock drill equipped with a dust collecting device of the present invention. The dust collector 100 of the present invention may be mounted on a rock drill not equipped with a driving power unit, but particularly when mounted on a self-propelled rock drill as shown, there are advantages in that various improvements can be obtained due to its compact design. The self-propelled rock drill has a crawler body, a wheel, etc., which can be driven, a rock drill main body 40, a dust collecting device 100, a drill rod 20 for drilling the ground, and a plurality of drills. The drill rod changer 10 which replaces the rod 20 is provided. Dust generated during drilling by using the drill rod 20 is sucked into the dust suction port 210 of the dust collecting device 100 through the dust suction pipe 30. Using the dust collecting device fixing part 600 illustrated in FIG. 5, the dust collecting device 100 may be easily attached to and removed from the rock drill body 40.

2 is a front view showing an air flow path during the dust collecting apparatus and the dust collecting operation of the present invention. Referring to this, the dust collector 100 seals the air to form a moving passage of dust and forms a housing 110, the protector unit 200, the filter unit 300, and the fan unit 500. Equipped. At this time, it is preferable to further include a pulsing unit 400 to remove the dust stuck to the filter 310 by shaking the filter unit 300.

In a preferred embodiment, the protector unit 200, the filter unit 300, the pulsing unit 400, and the fan unit 500 are sequentially disposed from the lower side of the housing 110. Therefore, dust can be easily discharged primarily by the collision force of the protector 220 and the weight of the dust, and damage to the filter 310 due to the collision of the dust can be prevented by the protector 220, and the filter ( By blowing high pressure air from the inside of the 310 to the outside, the pulsing efficiency of the filter 310 can be improved, and the degree to which the rotating fan 540 is damaged by the rising inflow of dust can be suppressed to the maximum.

The fan unit 500 generates a sound pressure for suction of dust. The movement paths of the air and the dust sucked by the negative pressure are indicated by arrows in FIGS. 2 and 3.

The filter unit 300 includes a filter 310 that filters the fine particles 60 that are not filtered out of the protector unit 200 so that they are not discharged to the outside of the housing 110. The filter unit 300 filters the air including the dust sucked through the dust suction port 210 and the protector unit 200.

The protector unit 200 includes a dust suction port 210 for sucking dust generated when drilling the drill rod 20, a dust discharge port 230 for discharging dust to the outside, a dust suction port 210, and a dust discharge port 230. It is provided with a protector 220 for directing the dust to be suctioned facing the dust to guide the dust to the dust outlet (230).

In one embodiment, the dust inlet 210 is formed on the side of the housing 110 and the dust outlet 230 is formed in the lower portion of the housing 110. At this time, the protector 220 is preferably disposed to be inclined with respect to the dust inlet 210 or the dust outlet 230, accordingly dust is in the direction of the dust outlet 230 by the impact force or gravity against the protector 220. Falls. That is, the filter 310 is damaged if a large load 50 such as rock fragments and gravel collides directly with the filter 310 while being moved together with the intake air. In addition, if the dust is wet, it is not easy to discharge the filter 310 is different. Therefore, in order to prevent this, the dust 50 having a large load such as gravel first collides with the protector 220 and the collision force or the self-weight of the dust 50 against the protector 220 is added to the dust 50. Let it fall As a result, it is possible to prevent damage to the filter 310 and to be easily discharged by the collision force or the self-weight even in dust having a high adsorption force.

3 is a plan view showing a fan unit of the dust collecting apparatus of the present invention. 2 and 3, the fan unit 500 includes a rotating fan 540, a fan inlet 510 for sucking air inside the housing 110 into the fan 540, and air outside the housing 110. It is provided with a first gate 520 for opening and closing the fan inlet 510 by being operated by the fan outlet 550, the actuator 700 to discharge to the. In one embodiment, a second gate 560 for opening and closing the fan outlet 550 may be further provided.

Referring back to FIG. 2, when a negative pressure is formed inside the housing 110 during operation of the fan unit 500, the flexible hose 70 connected to the dust outlet 230 located below the housing 110 is compressed, and thus the dust outlet is compressed. It is desirable to enhance the generation of negative pressure inside the housing 110 by closing the 230. If heavy dust 50 such as gravel continues to be stacked on the upper side of the crimped flexible hose 70, it will not endure its own weight and will fall to the outside while overcoming the compressive force of the flexible hose 70. After these dusts 50 are discharged, due to the negative pressure inside the housing 110, the flexible hose 70 is compressed again to help generate negative pressure. On the other hand, referring to Figure 4 to be described later, the negative pressure generated during the operation of the pulsing unit 400 is cut off by the compression of the flexible hose 70 is removed, the light load dust 60 removed from the filter unit 300 dust discharge port It can be easily discharged through 230.

4 is a front view showing an air flow path during the dust collecting device and the pulsing operation of the present invention. 5 is a side view showing an air flow path during the pulsing operation of the dust collector of the present invention. 6 is a plan view showing a pulsing unit of the dust collector of the present invention.

The pulsing unit 400 is to clean the filter unit 300 by shaking.

When the fan 540 of the fan unit 500 rotates, a negative pressure is formed inside the housing 110 to suck in dust. However, in the state in which the negative pressure is formed, the adsorption force between the filter 310 and the dust is generated, even if the filter 310 is shaken off, it is not easy to remove the dust. Therefore, the pulsing unit 400 starts to clean the filter unit 300 only when the negative pressure generation inside the housing 110 is blocked. For example, by operating the actuator 700, the negative pressure inside the housing 110 is removed by blocking the fan inlet 510 with the first gate 520. The present invention is not limited thereto, and by operating the second gate 560, the fan outlet 550 may be blocked to prevent sound pressure from being generated inside the housing 110. In this case, when the first gate 520 is used rather than the second gate 560, dust may flow into the fan unit 500, and the fan 540 may be damaged and blocked. That is, the first gate 520 or the second gate 560 serves to prevent dust from entering the fan unit 500 and damaging the fan 540 during the pulsing operation.

In addition, when a contaminant that is wet with water and has a high adsorption force or contaminates the inside of the housing 110 may be introduced into the housing 110, the inflow of the housing 110 may be temporarily interrupted by blocking the negative pressure inside the housing 110. In order to block, the first gate 520 or the second gate 560 may operate.

Referring to FIG. 1, for example, the drilling rod changer 10 extracts a new drill rod 20 and connects it to the previous drill rod 20 embedded in the ground, and then finish drilling to a predetermined depth. While recovering the drill rod 20 embedded in the ground, the drill rod 20 stops the drilling operation while the rock drill main body 40 moves to drill another hole. Thus, the rock drill main body 40 moves to replace the drill rod 20 for adding the drilling depth, to recover the drill rod 20 embedded in the ground after drilling is completed to a predetermined depth, or to drill another hole. As in the case, when brushing the filter unit 300 by injecting high pressure air to the filter unit 300 during the time that the drilling is stopped can increase the cleaning efficiency by the pulsing unit 400. More preferably, as shown in FIG. 4, the pulsing unit is operated in a state in which the negative pressure generation inside the housing 110 is blocked by closing the fan inlet 510 of the fan unit 500 by operating the first gate 520. 400 is more effective to operate.

The pulsing unit 400 shakes off the filter 310 by vibrating the filter 310. Although various embodiments are possible but preferred, the pulsing unit 400 blows off the filter 310 by injecting high pressure air into the filter 310. To this end, the pulsing unit 400 is provided as a separate part in the housing 110 to open the air tank 410 for storing high pressure air, the air valve 420 for opening and closing the air tank 410, and opening the air valve 420. Air nozzle 430 for injecting high pressure air, air duct 440 for guiding the injected high pressure air to the filter unit 300 is provided.

When pulsing using a common pneumatic device for the operation of the operating parts on the rock drill main body 40 side, the pressure of the high pressure air for pulsing may be lowered due to the length of the air supply pipe, and the rock drill main body 40 This may affect control of the actuator on the side. Therefore, by providing the air tank 410 for the pulsing of the dust collector 100 can improve the controllability of the pulsing operation and the pulsing pressure, compared to the control of the pneumatic device on the rock drill main body 40 side It can fundamentally block the influence on the motion control.

The high pressure air stored in the air tank 410 provided in the housing 110 as a separate part from the pneumatic device on the rock drill main body 40 side passes through the air valve 420, the air nozzle 430, and the air duct 440. Sprayed into the interior of the filter 310. The flow path of the high pressure air for pulsing is indicated by reference numeral P in FIGS. 4 and 5.

Hereinafter, the operation of the dust collecting apparatus will be described together with its configuration. First, the dust suction process will be described with reference to FIGS. 1 to 3. When the first gate 520 and the second gate 560 are moved to the open position, and the fan 540 rotates, negative pressure is generated inside the housing 110. Dust introduced into the housing 110 through the operating portion of the drill rod 20, the dust suction pipe 30, and the dust suction port 210 collides with the protector 220. Even if the heavy load 50 such as gravel does not pass through the filter 310, the dust is dropped toward the dust outlet 230 by the collision force with the protector 220. Therefore, the reliability and lifespan of the filter 310 are improved, and dust dischargeability is improved.

The light dust 60 enough to rise upward through the protector 220 is filtered by the filter 310. Since only the clean air filtered by the filter 310 passes through the fan inlet 510, the fan 540, and the fan outlet 550, the reliability and lifespan of the fan unit 500 or the pulsing unit 400 are improved. Damage to the dust 60 can be prevented.

If the dust 60 flowing into the housing 110 is mixed with water and has high adsorption force or other pollution degree, the first gate 520 or the second gate 560 is blocked to block the inside of the housing 110. Negative pressure is removed to prevent dust from entering any more. For this purpose, a sensor for detecting the degree of contamination of the dust, a sensor for detecting the adsorption force of the dust may be provided.

 4 to 6, the pulsing operation will be described. A sensor may be provided that detects the need for pulsing due to a deposit on the filter 310. Accordingly, when the pulsing timing is recognized, the second gate 560 may operate more preferably, and the first gate 520 may operate. Blocking the unit 500 to remove the negative pressure inside the housing (110). When the first gate 520 is blocked, damage to the fan 540 may be suppressed. The air valve 420 is opened and high pressure air inside the air tank 410 is injected into the filter 310 through the air nozzle 430 and the air duct 440. As the filter 310 vibrates by the high pressure air, the fixed matter of the filter 310 is cleaned. The cleaned deposit is dropped toward the dust discharge port 230 by inclining the rear surface of the protector 220.

When the pulsing is completed, the first gate 520 or the second gate 560 is opened, and a negative pressure due to the rotation of the fan 540 is formed inside the housing 110 and continues to suck in dust. According to the structure of the dust collector 100, even if the fan 540 continues to rotate, the negative pressure inside the housing 110 can be removed in an instant, thereby preventing damage to the device due to foreign matters, as well as the fan ( Since additional time is not consumed to restart 540 at a predetermined rotation speed, the operation switching time is very short when generating and removing sound pressure.

In addition, since the pulsing operation is performed in a state in which the negative pressure inside the housing 110 is removed, the cleaning performance of the filter 310 is greatly improved. In addition, since the first discharge of the dust by the protector 220 is made, the replacement cycle and the pulsing cycle of the filter 310 are reduced.

When the filter 310 reaches the end of its life, it is replaced with a new one. One side of the filter 310 is fitted to the filter fixing part 324 to fix the filter 310 by tightening the filter fixing screw 322. When the door 330 is fixed with the rocker 335, the door 330 is sealed to the housing 110 by the packing 337. When disassembling the filter 310, the locker 335 is released to open the door 330, and then the filter fixing screw 322 is loosened and the filter fixing part 324 is released to remove the filter 310 from the housing 110. Take out.

Although embodiments according to the present invention have been described above, these are merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent embodiments of the present invention are possible therefrom. Therefore, the true technical protection scope of the present invention will be defined by the following claims.

1 is a perspective view showing the structure of a self-propelled rock drill equipped with a dust collecting device of the present invention.

2 is a front view showing an air flow path during the dust collecting apparatus and the dust collecting operation of the present invention.

3 is a plan view showing a fan unit of the dust collecting apparatus of the present invention.

4 is a front view showing an air flow path during the dust collecting device and the pulsing operation of the present invention.

5 is a side view showing an air flow path during the pulsing operation of the dust collector of the present invention.

6 is a plan view showing a pulsing unit of the dust collector of the present invention.

<Explanation of symbols for the main parts of the drawings>

10 ... drill rod changer

20 ... drill rod 30 ... dust suction line

40 ... rock drill body 50, 60 ... dust

70 ... flexible hose

100 ... dust collector

110 ... housing 200 ... protector unit

210 ... dust intake 220 ... protector

230 ... dust outlet 300 ... filter unit

310 ... filter 322 ... filter fixing screw

324 ... filter holder 330 ... door

335 ... locker 337 ... packing

400 ... pulsing unit

410 ... air tank 420 ... air valve

430 ... air nozzle 440 ... air duct

500 ... fan unit 510 ... fan inlet

520 ... first gate 540 ... fan

550 ... fan outlet 560 ... second gate

600 ... Collar collection unit P ... High pressure air

700 ... Actuator

Claims (7)

A dust inlet for sucking dust generated during drilling of a drill rod, a dust outlet for discharging the dust to the outside, the dust inlet and the dust discharge port facing the dust to be introduced to guide the dust to the dust outlet A protector unit having a protector; A filter unit for filtering the air sucked through the protector unit; A fan unit generating a negative pressure for suction of the dust; Dust collecting device, characterized in that arranged sequentially from the bottom of the housing. The method of claim 1, The dust inlet is formed at the side of the housing and the dust outlet is formed at the bottom of the housing and the protector is inclined with respect to the dust inlet, so that the dust is discharged by the impact force and gravity against the protector. Dust collector, characterized in that falling in the direction. The method of claim 1, Flexible hose is connected to the dust outlet, Dust collecting device, characterized in that the dust discharge port is closed by pressing the flexible hose when the negative pressure generated by the fan unit. The method of claim 1, The fan unit includes a rotating fan, a fan inlet for sucking air in the housing into the fan, a fan outlet for discharging the air to the outside of the housing, and a first gate for opening and closing the fan inlet by being operated by an actuator. , Dust collecting device, characterized in that the first gate closes the fan inlet in order to prevent damage of the fan by mixing of foreign matter or to block the generation of negative pressure inside the housing. The method of claim 4, wherein A pulsing unit to shake off the filter unit by injecting high pressure air into the filter unit when the first gate closes the fan inlet and generation of negative pressure in the housing is blocked; Dust collecting device comprising a further. The method according to any one of claims 1 to 4, An air tank for storing high pressure air provided as a separate component in the housing, an air valve for opening and closing the air tank, an air nozzle for injecting the high pressure air when the air valve is opened, and the injected high pressure air to the filter unit. A pulsing unit having a guided air duct; Dust collecting device comprising a further. The method of claim 6, And the pulsing unit shakes off the filter unit by injecting high pressure air into the filter unit during the time when the drilling stops.

Images