SU117896A1 - Blasting well charging device - Google Patents

Description

Blast hole charging devices consisting of a pneumocontainer and a rammer are known.

The difference between the described device lies in the use of a pneumocontainer, equipped with a fabric bag-wrap, worn on it with an open end, concave with an elastic band mounted into the material, and a binder, made of several pieces of pipes, telescopically entering one another and fitted with pistons in the bottom part through holes. The breeder is mounted on a spacer column and its separation is made with compressed air. Such an embodiment of the device ensures the protection of explosives from spilling during charging, as well as acceleration and improvement of working conditions.

FIG. 1 shows a general view of the device; in fig. 2 - pneumocontainer; in fig. 3-bollard.

The device consists of pneumocteicus /, rammer 2, spacer 3 and hose 4, supplying compressed air.

The pneumatic container is made in the form of a pneumatic cylinder 5, equipped with a piston 6, in the lower part - a bottom 7, into which is mounted a device for connecting with a rammer (not shown) and a starting valve 8 for compressed air, operated by a cord 9. In the upper part is a pneumatic cylinder equipped with a bronze head 10 with four knives 11 for cutting the shell of cartridges, as well as openings for the release of compressed air. To ensure proper pressure in the cylinder, a cable 12 is installed, limiting the piston stroke. A cotton bag-wrap 13 with a deaf bottom on one side and with a twisting elastic 14 embedded in the fabric on the other side is put on the upper part of the cylinder.

The baffle is assembled from three tube sections 15, which are telescopically inserted one into the other and fitted with pistons 16 with through holes 17. At the top and bottom of the bollard there is a connection No. 117896-- 2 -

Rotta nuts. 18. The arresting valve is extended by acting on the compressed air pistons.

A pneumatic container preloaded with cartridges of explosives 19 is inserted into the well and, by means of a gradually retractable arrestor, is fed to the bottom of the latter. During the expansion of the rammer, the pneumocontainer is held on the legs 20 located on the inner first tube. When the pneumocontainer reaches the bottom, compressed air is turned on, the piston presses on the cartridges, which exit, cut the sheath with knives and stir it in the bottom of the well, which is in a cotton sheath bag. At the moment of separation of the cylinder from the last cartridge, the shell slides off it and with the help of an elastic band is pulled away, preventing the explosives from spilling.

The piston, having come to the upper extreme position, due to the restriction of the cable, becomes under appropriate pressure, as a result of which the process of uniformly pressing explosive cartridges in the well occurs.

Subject invention

Claims (4)

1. A device for charging blastholes by a packaged explosive, consisting of a pneumocontainer and a rammer, characterized in that, in order to protect the explosives from spilling during charging, the pewmocontainer is equipped with a wrapper bag that is worn on it with an open end, which is mounted inside rubber band material. 2. The form of the apparatus according to claim 1, characterized in that, in order to accelerate and improve the working conditions, the arrestor is made of several pipe segments, telescopically entering one another and provided with pistons with through holes in the lower part. 3. The form of execution of the rammer according to claim 2, characterized in that it is mounted on a spacer column. 4. The form of the rammer according to paragraphs. 2 and 3, characterized in that the separation of the borehole is carried out under the action of compressed air. Ajda A ujAaKApQ Jti 13 FIG. 2 eight Phyz 3