SU1639113A1 - Hole reamer rock receiver - Google Patents

Abstract

The invention relates to drilling and / / trunks and wells of large diameter. The goal is to increase the reliability of the device by eliminating its blocking. For this, the bottom is made in the form of two suction holes 13 spaced apart from one to two diameters of the inlet 13 of oppositely directed and converging to the longitudinal axis of the device conical half-funnels 6, 7, the latter having in the lower part guides 8 and 9 s in linear sections that coincide with the diameters of the lower bases of the half-funnel, which are equal to the diameter of the hole 13, the cut of the guide 9 of the half-funnel 7 is installed in the plane of the hole 13 directly below it, the cut of the guide 8 of the half-funnel b is located inside wipe out the half-holes 7. The device also has a shell 4, which is made of rock. The breed from half-funnel 6 and its guide 8 falls onto the half-funnel 7 and then, with the guide 9, it falls flat by way of hole 13 In the hole 13 of the fluid, the rock is entrained in the pulp-removal channel and transported to the surface, 2C. f-ly, 3 Il.

Description

The invention relates to the drilling of mine shafts and large-diameter wells, and in particular to advanced development expanders with the delivery of drilled rock through the reverse circulation of drilling fluid (or air).

The purpose of the invention is to increase the reliability of the device by eliminating its blocking,

Fig. 1 shows the receiver-type spreader, general view; in fig. 2 is a section A-A in FIG. 1 (turned); In FIG. 3 is a section BB in FIG. 2

The device consists of a body 1, a rock-destroying tool 2, a drill pipe 3, a cylindrical shell 4, an elastic 5 and an inclined bottom, made in the form of two oppositely directed conical semi-funnels 6, 7. moving into guides 8, 9 with wedge-shaped rims 10 , 11 along edges, spaced in height and converging to the longitudinal axis of the expander. The bottom of the upper half-funnel 6 enters the limits of the lower half-funnel 7. Under the lower half-funnel 7 there is a pulp-removal channel 12, the suction inlet 13 of which is directly below the cut of the guide 9 of the lower half-funnel 7. The section of the guide 9. half-hopper 7 and the suction hole 13 are in one vertical plane. Below the suction inlet 13 to the shell 4, which is made through, attached cumulative

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a capacitance 14 with a hinged bottom 15. The sections of the guides 8 and 9 coincide with the diameters of the lower bases of the half-funnels 6 and 7, which are equal to the diameter of the suction inlet 13, the half-funnels 6 and 7 are separated in height by a distance from one to two diameters of the suction inlet 13. Angle the inclination of the side surfaces of the half-funnels 6, 7 and their guides 8, 9 from the horizontal does not exceed the friction angle of the drilled rock 8 filling. The tapered ribs 10 and 11 are made tapering in the direction of the cuts of the guides 8 and 9.

Breeding worksite as follows.

Before the beginning of drilling, the airlift is brought into operation. Circulating the filling stem of the drilling fluid under the backwash scheme, i.e. down - along the trunk and up - along drill rubbles. The housing 1 is rotated by the drill coil 3, while the rock-breaking tool 2 destroys the rock. Pieces of rock fall on the bottom of the pulp receiving device, i.e. on the half-funnels 6, 7 and on the inclined surface of the half-funnels and their guides roll down to the center. Breed from the upper half-b and its guide 8 falls on the lower half of the funnel 7 and, further, with its guide 9 it falls flat by a narrow stream past the suction inlet 13. The passage through the jet is sucked into the hole 13 of the fluid, the rock is dragged into the pulp drain. 12 and transported to the surface. When this occurs, the breed is classified. Lumpy rock, which cannot be carried along by the flow of fluid, falls into storage tank 14 and, when the instrument is lifted, is released to the surface. In the absence of a storage tank 14, the rock falls into an advanced production unit.

Claims (3)

1. The standard receiver of the expander, which includes a housing with a suction inlet of the pulpo-channel in it, a cylindrical shell with an elastic collar and an inclined bottom for receiving and transporting the destroyed rock with a deviation angle from the horizontal not less than the friction angle of the drilled rock in the filling, characterized in that, in order to increase the reliability the device by eliminating its blockage, the bottom is made in the form of two separated in height by a distance from one to two diameters of the suction inlet of oppositely directed and converging to the longitudinal axis of the device of conical half-funnels, having in the lower part guides with straight cuts coinciding with the diameters of the lower bases of the half-funnels, which are equal to the diameter of the suction hole, while the cut of the bottom half-funnel guide is installed in the plane of the suction hole located directly below it, and the cut the upper the half-funnel is located inside the lower half-funnel, and the shell is made through. 2. The device according to claim 1, characterized in that wedge-shaped edges are slanted on the edges of the half-funnel, tapering towards the cuts of the guides, 3. The device according to claim 1, from ichchayuschee- so that the shell is provided with a cumulative capacity attached to its lower parts. 1 9 Aaa turned Phage. 2 Fig.Z