DE2327644B2 - METHOD OF LOADING A HOLE HOLE - Google Patents

Description

18 is provided, the

The pipe contents of the explosives required for the borehole come from the explosive pulp

corresponds to the amount of material, so that the appropriate supply for boreholes 45 is removed and placed in the loading

different length different loading tubes tube pumped into it When the desired amount of

In addition, there is the disadvantage that explosive pulp is required for loading a borehole

the risk of premature leakage from the open is suitable, has been filled into the loading tube 10,

At the end of the line, the coupling part 11 is separated from the coupling part 17

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Loading tube can be filled and prevent anything that explosives is spilled

Spillage from one end of the pipe is prevented. A fuse 21 is attached to the plug 20 for

This task is solved by the fact that the explosives 55 purposes of drawing off the scale and the explosive

attached against one side of a fabric when filling the loading tube

double acting piston that is free and slidable. The end of the loading tube 10 is then passed through a

arranged within the loading pipe and inserted along riser pipe 22 into an underwater borehole 23,

the same is movable, introduced, the blasting side as illustrated in FIG. 3, the detonating cord

The end of the loading tube then leads with a scale in the form 6o 21 from the scale to the surface

a plug is closed, the loading pipe with the coupling part 12 is connected to a compressed air supply

Tinder introduced into the borehole beforehand and the line 24 connected to the acting on the piston 13

Tinder opposite end with the flow air pressure ejects the scale 20, so that the

medium is acted upon, so that the explosive pulp 16 on the piston from the loading tube 10 into the borehole

acting pressure the scale and the explosive flows into the 65 23 The pressure of the pulp 16 on the sealing ring

Ejects the borehole while lifting the 15 while lifting the loading tube 10 upwards in the borehole

Loading pipe By filling the loading pipe against (Fig 4) the piston 13 has the coupling part 11

The double-acting piston is reached via the sliding (Fig. 5), the required load is in the

Drill hole 23 drilled. The loader tube 10 and the riser tube 22 are then pulled away from the wellbore and the charge is prepared to the point that it can subsequently be ignited by igniting the fuse 21 can be fired. The loading tube 10 can then be used for the purpose of receiving a further charge Explosives are in turn connected to the coupling part 17.

1 sheet of drawings

Claims (1)

1 2 away from the piston any desired full amount is possible regardless of the total length of the loading pipe, so that no loading method tailored to the length of the borehole is required for loading a borehole with a pipe length as a propulsion piston for the later water blasting, whereby the explosives are used to squeeze out the explosive without filling a loading tube, this loading tube must be inserted into the borehole and a separate sealing element is inserted and with a pressurized te Fluid, such as air or water, with the help of a scale has the advantage that anything is acted upon, thereby preventing unintentional leakage of explosives from being filled with the explosive and also acting twice against one side of the loading tube at the same time n- Introduction of the explosive, including the scale without the piston, which is introduced freely and displaceably within the special work, loading tube is arranged and moved along the same- The invention is borrowed in the following with reference to schemati, introduced, the explosion-side end of the 15 shear drawings of exemplary embodiments Loading pipe is then closed with a scale in the form of a plug explained, the loading pipe with the Fig. 1 shows in a schematic representation as well as in the scale in advance introduced into the borehole and the section shows a side view of a loading pipe for the scale opposite end with the borehole, which with a Flowable explosives flow medium is applied, so that the pressure acting on the piston is filled with the scale and FIG. 2 shows a section through the piston in FIG. 1, ejects explosives into the borehole while simultaneously lifting the loading tube F1 g 3 to 5 show a schematic representation of three stages at d he filling of an underwater borehole with 25 of the device shown in Fig. 1 The cargo tube 10 in Fig. 1 is a long flexible one One coupling part 11 each, especially for underwater explosions, with or 12 of a quick-release coupling being inserted A double of the explosive is filled into a loading tube, this loading tube 30 acting piston 13 is inserted inside the loading tube 10 into the borehole and arranged under pressure and freely along This is movable between the stationary flow means or fluid, such as air or coupling points 11 and 12, the latter being acted upon as water 13 sealing washers 14 loading tube filled with one open end into the 35 A borehole is introduced around the coupling part 12, after which a flexible sealing ring 15 made of rubber is attached from the other end, optionally with the interposition of a you, which serves to clear the space between the device ring of the explosives with the aid of the pressurized loading tube 10 and the To seal the borehole In FIG 1.1 * I 1 IL It 1. 1 VI Idn I'll. ι Έ r ι ι λ λ