KR102150652B1 - a horizontal excavator for obtaining the underground water - Google Patents

Abstract

According to the present invention, an excavator for a bedrock water sample tube well includes: a base frame including a base frame fixing unit to be fixed to a drilling position of a water sample tube well in an underground water collection well; a water sample tube well drilling unit including a guide lead installed in the base frame, a transfer table moved forward and backward along the guide lead, a head part installed on the transfer table and including a driving shaft operated by a second driving source and having a hollow part, and a transfer table driving part moving the transfer table forward and backward along the guide lead; an air pressure supply unit connected with an air pressure supply pipe to supply air pressure to the hollow part of the driving shaft; an excavating unit installed on the rod to drill the water sample tube well; and a dust collection unit collecting dust produced during drilling work by the excavating unit such that the dust cannot be discharged through a drilled hole. Therefore, the excavator is capable of maximizing work efficiency.

Description

A horizontal excavator for obtaining the underground water

The present invention relates to an excavator for a rock water collection pipe, and more particularly, to an excavator for a rock water collection pipe capable of reducing the generation of dust when drilling radially in an underground collection well.

Recently, as the problem of the quantity and quality of water resources has emerged as a national concern, various efforts to secure quality water resources are being actively progressed. In particular, as interest in RBF (RiverBank Filtration) water intake, which is one of the indirect water intake methods in which the utility of groundwater/surface water is increased, has increased, many studies on this have been conducted.

Surface water intake, the current domestic water intake method, is sensitive to seasonal changes in water quantity and water quality and various water quality accidents.

Facilities required for water intake are diverse, such as large vertical wells, radial catchment wells, and inclined wells, but radial catchment wells, which have the advantage of intake of large amounts of raw water and not significantly affecting the surrounding aquifer, have recently attracted attention. However, in the case of a radial collection well, it is difficult to construct a horizontal well, and there is a burden on maintenance.

On the other hand, in order to collect a large amount of good quality groundwater from the aquifer existing underground, a collection well into the aquifer must pass. However, if the catchment well is excavated up to the hard rock layer and the aquifer cannot be accurately penetrated, a huge cost is incurred.

Of course, various geological surveys to determine the location of the aquifer existing in the underground hard rock formation are performed prior to excavation of the deep well, but the detection method of the aquifer relying on such a geologic survey is not accurate and thus cannot be trusted. Therefore, in the case of a catchment well that has not passed through the aquifer, a device has been proposed to drill a horizontal catchment well using a horizontal excavator in the work space of the underground catchment well in order to increase the amount of water collected.

Korean Patent Registration No. 10-0250580 discloses a horizontal excavator for collecting underground rock water. The posted horizontal excavator is made of a predetermined width and length so that it is supported on the inner wall of the work space of the excavated underground collection well and installed horizontally, and a fixed bed having a pair of guide rails installed parallel to the top, and a guide of the fixed bed A transfer frame disposed above the rail and installed so as to be movable in the front-rear direction by the front-rear operation means, and the compressed air supplied at high pressure to the inside while being rotated forward and reverse by the driving means in the center of the transfer frame An excavation propulsion shaft installed so as to be provided, and an excavation unit for excavating while striking the hard rock layer as propulsion force and compressed air continuously transmitted to the tip of the excavation propulsion shaft.

Since the conventional horizontal excavator as described above has a structure in which the excavation unit is moved only in one direction by the transfer frame supported on the fixed bed, it is difficult to excavate radially. In particular, since the excavation unit has a structure that moves in the horizontal direction, it is not possible to perform drilling work in the oblique direction for the underground catchment well. In addition, there is a problem that the efficiency of work cannot be improved because a lot of dust is generated when drilling the water collection well in the horizontal direction.

Korean Patent Registration No. 10-0284857 discloses a method of collecting underground rockwater, and Korean Patent Registration No. 10-1547842 discloses a horizontal mounting device with a rotating tip. Korean Patent Registration No. 10-1496733 discloses a horizontal mounting device equipped with a straight guide pipe.

In the horizontal mounting apparatus as described above, it is relatively difficult to drill deep holes in a horizontal direction, continuous construction in a radial direction is difficult, and a radial drilling operation is difficult to be practical.

In addition, Korean Patent Publication No. 2010-067165 discloses a non-powered horizontal well cleaning device.

In addition, a horizontal excavator for collecting underground rock water is posted in the Korean Registered Utility Model No. 20-0204725. The posted horizontal excavator is made of a predetermined width and length so as to be installed in the work space of the underground collection well, and has a fixed bed having a pair of guide rails installed parallel to the top, and it is arranged on the top of the guide rail of the fixed bed to move forward and backward. A transfer frame is provided so as to be movable in the front-rear direction by means of a means, and a propulsion shaft drive unit operated by a hydraulic motor is mounted on an upper portion of the transfer frame.

Also, the conventional horizontal excavator as described above cannot fundamentally solve the problem of dust generated when the water collection well is formed in the rock layer.

Korean Patent Registration No. 10-0284857 Korean Patent Registration No. 10-1547842 Korean Patent Registration No. 10-1496733 Korean Patent Publication No. 2010-067165 Registered in Korea, Utility Model No. 20-0204725

The present invention is to solve the above-described problems, and prevents the dust generated when drilling the water collection well in the radial direction within the underground water collection well from being discharged to the underground water collection well through the entrance of the water collection well, thereby improving the drilling work efficiency. It is an object of the present invention to provide an excavator for collecting rock water that can be improved.

The excavator for rock water collection pipes of the present invention for achieving the above object includes a base frame having a base frame fixing unit for fixing at a drilling position of a water collection well inside an underground collection well, a guide lead installed on the base frame,

A transfer table that moves forward and backward along the guide lead, a head portion provided on the transfer table and provided with a drive shaft that is driven by a second driving source and has a hollow portion, and moves the transfer table forward and backward along the guide lead. A water collection pipe well drilling unit including a transfer table driving unit,

A pneumatic supply unit connected to a pneumatic supply pipe to supply pneumatic pressure to the hollow portion of the drive shaft, and an excavating unit installed on the rod to drill a water collection well,

It is characterized in that it is provided with a collecting and collecting unit that collects the dust generated during the drilling operation by the excavation unit so as not to be discharged through the drilling hole.

In the present invention, the dust collecting unit is capable of piggybacking by atomizing water into high-pressure air supplied through the pneumatic pipe, a pump for pumping water from a water tank, and connected to the pump, and the pneumatic supply pipe and A water supply pipe to be connected, and a spray nozzle installed at the end side of the water supply pipe to atomize the water pumped to the pneumatic supply pipe.

And the dust collecting unit has a perforation unit and a support hole into which the rod is inserted, and an induction guide tube having a plurality of injection holes inserted and installed at the inlet side of the perforation hole, and installed on the outer circumferential surface of the guide guide tube and supported through the injection hole. A plurality of injection pipes installed on the outer circumferential surface of the induction guide pipe so that water can be sprayed into the inside of the ball, a water distribution pipe interconnecting the injection pipes, and water connected to a pump for pumping water to the water distribution pipe It can be configured with a supply pipe.

On the other hand, at least one drain hole communicating with the hollow portion is formed in the rod adjacent to the perforation unit, and a through hole for supplying pneumatic pressure to the perforating unit is formed in the central portion on the inner circumferential surface of the rod between the drain hole and the perforating unit. A blocking rib may be installed for inducing and discharging water to the drain.

The excavator for a rock water collection pipe according to the present invention prevents the dust generated when the rock layer is drilled by the excavation unit from being discharged to the outside through the drilling hole, so that the workability is deteriorated due to dust flying inside the water collecting well. And, furthermore, work efficiency can be maximized.

In addition, since a blocking rib is installed in the rod adjacent to the excavation unit, it is possible to prevent the condensate of water that is pumped to the high pressure supplied to drive the excavating unit from entering the excavation unit and increase the reliability of the equipment for drilling the drilling hole. I can.

1 is a cross-sectional view showing an installation state of an excavator for collecting rock water according to the present invention;
2 is a perspective view of an excavator for collecting rock water in accordance with the present invention,
3 is a side view showing a state in which the dust collecting unit installed in the excavator for collecting rock water according to the present invention is installed;
Figure 4 is a partially cut perspective view showing a state in which a blocking rib for discharging condensed water in the rod is installed;
5 is a perspective view showing another embodiment of a dust collecting unit according to the present invention,
Figure 6 is a side view showing the operating state of the excavator for rock water collection pipe according to the present invention.

The excavator for a rock water collection pipe according to the present invention is for drilling water collection wells for finding an aquifer while being supported on the inner wall of an underground collection well, and an embodiment is shown in FIGS. 1 to 4.

Referring to the drawings, the excavator 100 for collecting rock water according to the present invention includes a base frame 110 fixed by a base frame fixing unit 111 for a drilling position of an inner wall of an underground collection well, and the base frame ( On the upper surface of 110), a water collection pipe well drilling unit 120 for drilling the water collection well 300 radially with respect to the underground water collection well 200 is installed.

And, by the excavation unit 190 of the water collection pipe well drilling unit 120, the drilling hole, that is, the dust generated when the water collection well 300 is drilled, through the entrance of the water collection well 300, the inside of the underground collection well 200 It is provided with a dust collecting unit 150 for dust is diffused into.

The radial rock well excavator according to the present invention configured as described above will be described in more detail for each component as follows.

It is desirable that the base frame 110 of the excavator 100 for collecting rock water according to the present invention is formed smaller than the diameter of the underground collecting well 200 so that the size of the base frame 110 can be inserted into the underground collecting well 200 . However, the present invention is not limited thereto, and may be separated and assembled for smooth insertion into the underground collection well. The base frame fixing unit 111 installed on the base frame 110 is for supporting the base frame 111 on the inner wall of the underground collection well 200, and a plurality of base frames installed on the outer surface of the base frame 110 It can be made of four screw jacks. The base frame fixing unit 111 may include a support bar 112 screwed to the base frame 110 and an anchor pad 113 installed at an end of the support bar 112.

The water collection pipe drilling unit 120 installed on the base frame 110 includes a guide lead 121, and the front side of the guide lead 121 is rotatable by a hinge shaft 122 on the base frame 110 Is installed, and the rear end side of the guide lead 121 is a height adjustment unit 123 installed on the base frame 110 is installed. The height adjustment unit 123 may be formed of a screw jack, a hydraulic cylinder, or the like, but is not limited thereto. With the configuration as described above, the guide lead 121 can be angle-adjusted around the hinge shaft 122 by the height adjustment unit 123.

In addition, the guide lead 121 may have a hollow portion 121a formed in the longitudinal direction, and the guide lead 121 includes a transfer table 125 that is slid in the forward and backward direction by the transfer table driving unit 130 Installed. Departure prevention guide protrusions may be formed on both side surfaces of the guide lead 121 to prevent separation of the transfer table in the longitudinal direction. It is preferable that the guide lead 121 has a rectangular cross section.

In the base frame 110, the above-described water extraction well drilling unit 120 may be installed on a rotary table (not shown) that is rotatably installed on the base frame 110 at a predetermined angle. In this case, when drilling radially on the inner circumferential surface of the underground water collecting pipe 200, the water collecting pipe well drilling unit can be rotated at an arbitrary angle.

On the other hand, the transfer table driving unit 130 is installed on the rear end side of the guide lead 121 and the driving sprocket 132 rotated by the first driving source 131 and the support shaft at the front end side of the guide lead 121 It includes a driven sprocket 133 to be installed, and a driving chain 134 that is fixed to both sides of the transfer table 125 at both ends of the drive sprocket 132 and the driven sprocket 133. It is preferable that the first driving source 131 uses a motor. However, the present invention is not limited thereto, and an air motor, a hydraulic motor, and an engine may be selectively used.

The transfer table 125 is provided with a head 140 provided with a drive shaft 141 for rotating the excavating unit 20 connected to the rod 10 for drilling. The head part 70 is provided with a second driving source 142 for rotating the driving shaft 141 forward and backward, and the second driving source 142 may be formed of a geared motor having a reducer. It is preferable that the geared motor having the reducer uses a sub-motor to control the number of rotations of the drive shaft.

The drive shaft 141 has a hollow portion penetrating in the longitudinal direction to supply high-pressure air, and a male screw portion for coupling with the lot 10 is formed on the front end side of the drive shaft 141. The rear end of the drive shaft 141 is connected to the pneumatic supply pipe 171 of the pneumatic supply unit 170 by a rotary joint to continuously supply high-pressure air through the hollow portion. A compressor may be used as the high pressure supply unit.

The excavation unit 20 is screwed with the rod 10 screwed to the drive shaft 141. The perforation unit 10 may be formed of an air hammer. However, the present invention is not limited thereto, and a water hammer may be used, and a bit may be installed at the end of the rod at the end.

On the other hand, the dust collecting unit 150 is a hole in which dust generated when the rock layer is drilled by the excavation unit 20, that is, through the entrance of the water collection well 300, into the interior of the underground collecting well 200. It is possible to prevent diffusion, and to drive the excavation unit 20, a dust generating unit in which water is excavated through the excavation unit 20 by piggybacking atomized water in high-pressure air supplied through the pneumatic supply pipe 171 Will be sprayed on.

The dust collecting unit 150 configured as described above is connected to the pneumatic supply pipe 171 to provide a spray nozzle 151 for atomizing and supplying water to the air supplied to the excavation unit, and from the water supply tank 152 A water supply pipe 154 connecting the pump 153 for pumping water and the spray nozzle 151 is provided. The injection nozzle 151 is connected to the pneumatic supply pipe, and has an orifice formed in the longitudinal direction of the pneumatic supply pipe, and may have a water supply part connected to the water supply pipe at the orifice portion. However, the injection nozzle is not limited to the above-described embodiment.

The dust collecting unit 150 may further include a condensed water discharge unit 155 in the rod 10 adjacent to the perforation unit. The condensed water discharge part 155 has at least one drain hole 155a in communication with the hollow part in the lot 10, and a central part of the inner circumferential surface of the hollow part of the rod between the drain hole 155a and the drilling unit A cohesive water blocking member 155c having a pneumatic supply port 155b for supplying pneumatic pressure to the unit is installed. This can prevent the condensed water that has been aggregated while passing through the rod 10 from flowing into the Ahammer, which is the excavation unit 20.

5 shows another embodiment of the dust collecting unit 150. The illustrated dust collecting unit 150 has a support hole 156a so that the excavating unit 20 and the lot 10 can pass therethrough, and an induction guide pipe 156 inserted and installed at the inlet side of the perforated hole forming the water collection well. It is equipped with. A plurality of injection holes 156b passing through the support hole 156a are installed on the outer circumferential surface of the induction guide tube 156 to be arranged in the longitudinal direction. Injection pipes 157 for spraying water into the support hole 156a through the injection hole 156b are formed or installed on the outer peripheral surface of the guide guide pipe 156. A water distribution pipe 158 interconnected with the injection pipes 157 is installed on the outer circumferential surface of the front end side of the induction guide pipe 156, and the connection pipe 158 includes a pump 153 and water for pumping water. It is connected by a supply pipe 154.

The dust collecting unit 150 is not limited by the above-described embodiment, and may have a structure capable of spraying water from the inner circumferential surface of the perforated hole toward the perforated hole in the process of forming the perforated hole. For example, it may be formed of at least one injection pipe connected to the connection pipe, in close contact with the inner circumferential surface of the perforation hole, and having a plurality of injection holes formed therein.

When explaining the operation of the excavator for rock water collection pipe according to the present invention configured as described above is as follows.

In the state where the underground collection well is drilled to the Gyeongam layer, in order to drill the water collection well 300, the base frame 110 of the radial rock well excavator is fixed to the inner surface of the underground collection well at the site for forming the water collection well 300. do. In addition, the drive shaft 141 of the head portion is positioned to face the portion to form the water collection pipe 300.

In this state, the transfer table 125 is retracted using the transfer table driving unit 130, and then the rod 10 is mounted on the drive shaft, and the excavating unit 20 is installed at the end thereof. In addition, by using the pneumatic supply unit and the pneumatic supply pipe 171, high-pressure air is supplied to the hollow portion of the drive shaft 141 to drive the air hammer, which is the excavation unit 20, and rotate the drive shaft 141.

Then, by rotating the first driving source of the transfer table transfer unit 130 to move the chain 134, the transfer table 125 connected thereto is advanced to perform a drilling operation. After the transfer table 125 is moved backward as the drilling depth of the water collection well 300 is deepened, the drilling operation is performed while connecting the rod 10.

As described above, water in the water tank 152 is pumped using the pump 153 in the process of drilling and supplied to the spray nozzle 151 connected to the water supply pipe 154. The high-pressure water supplied to the injection nozzle 151 is sprayed onto the injection nozzle 151, that is, atomized into small particles, and is piggybacked on the air supplied through the pneumatic supply pipe.

The high-pressure air from which the atomized water is piggybacked is supplied to the excavation unit 20 through the hollow part of the drive shaft 141 and the rod 10, and then discharged to the bit side of the excavating unit 20 forming a hole. . Therefore, since the high-pressure air discharged to the bit side of the excavation unit 20 is piggybacked with atomized water, the dust generated when the bit hits the arm and drills is wetted by the atomized water and does not sink to the bottom side of the drilling hole.

Therefore, when the drilling hole, which is a water collection pipe, is formed, dust generated from the excavating unit side can be prevented from being discharged to the inlet side of the drilling hole. In particular, the water that is condensed when moving in the state of being piggybacked on high-pressure air is located in the hollow part of the rod 10, and the foreign matter is discharged to the perforated hole through the drain hole 155a of the condensed water discharge part 155, and Water is discharged by moving to the inlet side of the perforated hole like dust.

And, as shown in Figure 5, the excavation unit 20 and the lot 10 has a support hole (156a) so that it can pass through, and is inserted into the inlet side of the perforation hole forming the water collection pipe to be installed guide guide pipe 156. In the case of including, the water pumped by the pump 153 is blown through the water supply pipe and the injection hole 156b to the inlet side of the drilling hole where dust is discharged, so that the dust generated by the excavation unit waits through the inlet side of the drilling hole. It can prevent spreading in the middle.

That is, as shown in FIG. 6, water sprayed through the spray hole 156b sinks to the bottom of the support hole like dust discharged through the support hole 156a, so that the dust penetrates the w support hole 156a. Thus, it is possible to prevent it from spreading to the inside of the water collection well.

As described above, the present invention can fundamentally prevent the diffusion of dust generated while forming the drilled hole in the basement rock layer by the excavation unit, so that the air in the space where the drilling work is performed. It can fundamentally prevent contamination by dust.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those of ordinary skill in the art will appreciate that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true technical protection scope of the present invention should be determined by the technical idea of the attached registration claims.

Claims (5)

A base frame 110 having a base frame fixing unit 111 for fixing at a perforation position of the water collection well inside the underground collection well;
A guide lead 121 installed on the base frame 110, a transfer table 125 that moves forward and backward along the guide lead 121, and is installed on the transfer table 125 and driven by a second driving source And a head part 140 having a drive shaft 141 having a hollow part, and a transfer table driving part 130 for moving the transfer table 125 forward and backward along the guide lead 121 (120);
A pneumatic supply unit 170 connected to a pneumatic supply pipe 171 to supply pneumatic pressure to the hollow portion of the drive shaft 141;
An excavation unit (20) installed on the rod (10) coupled to the end of the drive shaft (141) to drill a water collection well; And
A dust collecting unit 150 is provided to collect dust generated during the drilling operation by the excavation unit 20 so as not to be discharged through the drilling hole,
The dust collecting unit 150 is capable of piggybacking water by atomizing water into high-pressure air supplied through the pneumatic supply pipe 171, and a pump 153 for pumping water from a water tank, and the pump 153 ) And a water supply pipe 154 connected to the pneumatic supply pipe 171, and a spray nozzle 151 installed at an end side of the water supply pipe 154 to atomize the water pumped into the pneumatic supply pipe 171 ), and
The rod 10 adjacent to the excavation unit 20 further includes a condensed water discharge part 155, wherein the condensed water discharge part 155 is at least one in communication with the hollow part of the rod 10. A pneumatic supply port 155b for supplying pneumatic pressure to the excavating unit 20 is formed at a central portion on the inner circumferential surface of the drain port 155a and the rod 10 between the drain port 155a and the excavation unit 20, An excavator for a rock water collection pipe, characterized in that having a cohesive water blocking member (155c) for inducing and discharging water to the drain hole (155a). delete The method of claim 1,
The dust collecting unit 150 has a support hole 156a into which the excavation unit 20 and the rod 10 are inserted, and a plurality of injection holes 156b inserted and installed at the inlet side of the perforation hole are formed. (156), installed on the outer circumferential surface of the induction guide pipe 156, and on the outer circumferential surface of the induction guide pipe 156 so that water can be sprayed into the inside of the support hole 156a through the injection hole 156b. It characterized in that it comprises the installed injection pipes 157, a water distribution pipe 158 connected to the injection pipes 157, and a pump 153 for pumping water to the water distribution pipe 158. Excavator for rock water collection welling. The method of claim 1,
The guide lead 121 is an excavator for rock water collection pipes, characterized in that installed on a rotary table 125 rotatably installed on the base frame 110. The method of claim 1,
The agglomerated water blocking member (155c) is made of a hollow annular member defining the pneumatic supply port (155b) in the central portion, to prevent the condensed water from flowing into the excavation unit 20 while passing through the rod (10) An excavator for collecting rock water, characterized in that.

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