JP3387757B2 - Pumping device for accumulated water in dynamite blasting holes - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to relates to lifting water apparatus accumulated water in dynamite in blasting hole using water pumps.

[0002]

2. Description of the Related Art As shown in FIG. 3, water 3 is stored inside a hole 2 such as a hole for blasting dynamite formed on the ground 1, for example. Insert the hose 4 to the bottom of 2, and attach the base end of this hose 4 to the ground 1
Connected to the suction port 6 of the pump for pumping water 5 and operating the pump for pumping water 3 to pump up the water 3 in the hole 2.
The water is discharged from the discharge port 7.

The hose 4 and the pumping pump 5 have holes 2
It is necessary to use the one according to the length of. For example, hole 2
It is necessary to prepare a hose 4 having a length corresponding to the depth and a pumping pump 5 having a head corresponding to the depth as the depth is deeper.

[0004]

As described above, the height at which the pumping pump 5 can pump the water 3 (lifting height) depends on the capacity of the pumping pump 5 itself, and when the pumping capacity is not sufficient. Has a problem that the water 3 cannot be pumped up or the pumping efficiency is extremely poor .

[0005] The present invention has been made in view of the above problems, without changing the water pumps, to provide a lifting water system of accumulated water in dynamite in blasting holes which can improve the lift and pumping efficiency That is the purpose.

[0006]

Invention described in 請 Motomeko 1 SUMMARY OF THE INVENTION comprises a scooping gel pump - the reservoir water in dynamite blasting hole, is connected to the suction port of the pumping pump in dynamite blasting hole Pumping pipe to be inserted into pooled water, pipe joint provided in the upper part of this pumping pipe, and air supply pipe which is arranged inside the pumping pipe from this pipe joint and opened in the lower part of the pumping pipe Hole for dynamite blasting, which has a portion, an air supply source for supplying air into the lower portion of the pumping pipe through the air supply pipe, and a check valve provided only at the lower end of the pumping pipe and opened only in the suction direction. It is a pumping device for accumulated water inside.

[0007] Then, air is supplied from the air supply source to the lower portion of the pumping pipe through the air supply pipe in the pumping pipe to generate bubbles, and innumerable bubbles are raised in the pumping pipe, so that a small diameter is obtained. In the pumping pipe inserted into the pool of dynamite blasting holes, the water level rises due to volume expansion and a lighter gas-liquid mixing column is generated, and the bubbles rising in the pumping pipe raise it into the pumping pipe. Create a stream of water. At the same time, the pump is operated to suck up the gas-liquid mixing column by the suction capacity of the pump. Further, the check valve prevents the backflow of the water once sucked into the pumping pipe body, and secures the volume expansion of the gas-liquid mixing column in the pumping pipe body.

The invention described in claim 2 uses a diaphragm pump as a pump for pumping the accumulated water in the hole for blasting dynamite according to claim 1 .

Then, by the pumping action due to the volume change of the diaphragm pump, the gas-liquid mixing column in the pumping pipe inserted into the pool water in the small diameter dynamite blasting hole is sucked up.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to FIG.
The description will be made with reference to FIG.

As shown in FIG. 1, as a pump for pumping up the water 13 accumulated in the hole 12 in the vicinity of the opening of the small diameter hole 12 as a hole for blasting dynamite formed in the ground 11. Install the diaphragm pump 14 of. This diaphragm pump 14 has a suction port 15 and a pipe 16
A hose 17 as a pumping pipe inserted into the water in 12 is connected.

Inside the hose 17, a tube 18 as an air supply pipe portion inserted from the pipe joint 16 is arranged, and a tip 18a of the tube 18 is located inside the hose 17 and slightly above the lower end of the hose 17. Open at.

The base end of the tube 18 is connected to a compressor 19 as an air supply source, and compressed air is supplied from the compressor 19 into the lower portion of the hose 17 through the tube 18 and injected.

The compressor 19 supplies compressed air to the tube 18 and also supplies working air to the diaphragm pump 14 via a pipe line 22 branched by a pipe joint 21.

A check valve 24 is provided at the lower end of the hose 17 and opens only in the suction direction. This check valve 24 is connected to the hose 17
A valve seat 26 having a suction hole 25 provided at the lower end of the valve seat 26 and a ball 27 provided on the upper side of the valve seat 26 so as to be freely contactable and separable.

FIG. 2 shows a diaphragm pump 14 as a pump for pumping water. The diaphragm pump 14 will be described.

An air chamber 34 and a pump chamber 35, which are defined by a diaphragm 32 and a diaphragm holding member 33, are provided on both sides of the pump body 31, respectively, and a suction check valve 36 is provided in each of the pump chambers 35 on both sides. The suction port 15 is connected and the discharge port 38 is connected via the discharge check valve 37, the diaphragm sandwiching bodies 33 on the both sides are connected by a center rod 39, and the center portion of the center rod 39 has the both sides. A switching body (42) of a switching mechanism (41) for alternately switching between supplying and discharging compressed air to and from the air chamber (34) is slidably fitted.
This switching body 42 is formed by integrally forming flange bodies 43 at both ends.

A pressing body 44 is slidably fitted to both left and right sides of the pump body 31 via the switching body 42. This pressing body
44 is a bush-shaped one that holds the diaphragms on both sides.
A center rod 39 formed to have the same diameter over the entire length between 33 is slidably fitted together with the switching body 42. Further, the pressing bodies 44 on both sides are provided with a flange-shaped engaging portion 45 that is locked to the pump body 31 at the end portion on the switching body side, and the opposite end portion is opposed to the diaphragm holding body 33 so as to be separable. .

The diaphragm pump 14 pressurizes the compressed air supplied from the compressor 19 through the conduit 22 into the right air chamber 34 through the supply hole 51, the central chamber 52 and the right through hole 53. Air chamber 34 on the left side
The air that was there was left through hole 54, switching valve 55 and exhaust hole 56.
When it is discharged to the outside via the diaphragm 32 on both sides, it moves to the right side, closes the suction check valve 36 and opens the discharge check valve 37 on the right side, and the water in the pump chamber 35 on the right side is discharged to the discharge port 38. At the same time, the discharge check valve 37 is closed on the left side and the suction check valve 36 is opened on the left side to suck water into the left pump chamber 35 from the suction port 15 to which the hose 17 is connected. At this time, the center rod 39 is the switching body 42 and the pressing body.
Slide to the right in the center hole of 44.

When the movement of the center rod 39 to the right progresses, the diaphragm holding body 33 on the left side moves to the pressing body on the left side.
44 and the switching body 42 via the engaging portion 45 of the pressing body 44.
To the right side, and further, the flange body 43 of the switching body 42 moves the switching valve 55 to the right side. The switching valve 55 causes the right side through hole 53 and the discharge hole 56 to communicate with each other and the right side air chamber 34. As the air escapes, the left through hole 54 and the central chamber 52 communicate with each other to supply air to the left air chamber 34, and the diaphragms 32 and the center rod 39 on both sides start operating to the left side.
The suction and discharge actions of the left and right pump chambers 35 are also reversed. Such a switching action is repeated, and water is continuously sucked and discharged.

Next, the operation of the embodiment shown in FIG. 1 will be described.

The diaphragm pump 14 is operated by the compressed air supplied from the compressor 19 through the conduit 22, and the water 13 is sucked up through the hose 17 inserted into the water, and at the same time, the hose 17 of the hose 17 passes through the tube 18 from the compressor 19. Air is supplied into the lower portion to generate bubbles 57 in the water in the hose 17, and the numerous bubbles 57 are raised in the small-diameter hose 17 to generate a gas-liquid mixing column in the hose 17.

At this time, the pump drive air supply flow rate supplied from the compressor 19 to the diaphragm pump 14 is sufficiently higher than the bubble generation air supply flow rate supplied to the tube 18. The gas-liquid mixing column in the hose 17 is sucked upward by adjusting a throttle valve (not shown) or the like.

The gas-liquid mixing column is hose 17 by volume expansion.
Increase the water level inside and reduce the weight per unit volume (specific gravity). Also bubbles rising in hose 17
The 57 causes a rising water flow in the hose 17 and applies upward force to the water in the hose 17.

Therefore, the diaphragm pump 14 sucks up the gas-liquid mixing columnar body in the hose 17 by the pump suction action due to the change in the volume of the pump chamber 35 defined by the diaphragm 32. In addition, the rise of the water level in the hose and the reduction of the specific gravity by the gas-liquid mixing column, and the rising water flow in the hose substantially increase the lift of the diaphragm pump 14, and increase the pumping efficiency of the diaphragm pump 14. Since it can be improved, water can be pumped up and drawn out even from the inside of a hole having a depth which has been impossible in the past. The pumped water and bubbles are discharged from the discharge port 38.

Due to the pump suction action, the suction hole of the check valve 24
Water sucked into hose 17 from 25 is the ball of check valve 24.
27 prevents backflow. The check valve 24 can also prevent the gas-liquid mixing column body that has expanded in volume within the hose 17 from flowing out of the hose 17.

The invention described in claim 1 does not limit the pumping pump to the diaphragm pump 14, but may be, for example, a piston pump or an impeller pump. Further, the air supply source is not limited to the compressor 19, and for example, when the amount of pumped water is small, an air tank or the like that stores compressed air may be used.

[0028]

Effects of the Invention] According to the invention 請 Motomeko 1, wherein the air supply pipe portion which is opened in the lower portion of the disposed within the pumping tube pumping tube, the pumping tube via the air supply pipe portion By the air supply source that supplies air into the lower portion, it is possible to provide a pumping device capable of substantially improving the pumping head and pumping efficiency of the pump, and pumping the pooled water in the small diameter dynamite blasting hole. In addition, the check valve can prevent the backflow of the water sucked into the pumping pipe and ensure the volume expansion of the gas-liquid mixing column in the pumping pipe, which can improve the pump head and pumping efficiency. You can

According to the second aspect of the present invention, the gas-liquid mixing columnar body in the pumping pipe inserted into the small diameter dynamite blasting hole can be efficiently sucked up by the pumping action due to the volume change of the diaphragm pump. it can.

[Brief description of drawings]

1 is an explanatory view showing an embodiment in accordance with the lifting water apparatus of the present invention.

FIG. 2 is a cross-sectional view showing an example of a pumping pump used in the above apparatus.

FIG. 3 is an explanatory diagram showing a conventional pumping method.

[Explanation of symbols]

12 small diameter hole 13 compressor 24 check valve as a tube 19 source of air as the hose 18 air supply pipe portion of the diaphragm pump 15 inlet 16 fitting 17 lifting pipe member as the water 14 water pumps as dynamite blasting hole

Continuation of front page (56) References JP-A-6-2666 (JP, A) JP-A-8-4700 (JP, A) JP-A-49-47915 (JP, A) JP-A-7-279855 (JP , A) JP-A-48-9305 (JP, A) Actually open flat 6-8799 (JP, U) Actually open flat 6-60784 (JP, U) Patent 164713 (JP, B2) JP-B-59-36120 ( JP, B1) S.K. 46-6913 (JP, Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) F04B 9/00-15/08 F04B 43/00-47/14 F04B 53 / 00-53/22 F04F 1/00-1/20

Claims (2)

(57) [Claims] 1. A pump for pumping up accumulated water in a hole for blasting dynamite, a pumping pipe connected to a suction port of the pump for pumping water and inserted into pooled water in the hole for blasting dynamite, and this pumping pipe. The pipe fitting provided on the upper part of the pumping pipe, the air supply pipe part which is disposed inside the pumping pipe body from the pipe joint and opened in the lower part of the pumping pipe body, and through the air supply pipe part, the inside of the lower part of the pumping pipe body. An apparatus for pumping pooled water in a hole for blasting dynamite, comprising: an air supply source for supplying air to the pump; and a check valve provided at the lower end of the pumping tube that opens only in the suction direction. 2. A pumping pump, reservoir water pumping equipment in dynamite blasting hole according to claim 1, characterized by using a diaphragm pump.