SU1229361A1 - Injector for cementing rock - Google Patents

Description

The invention relates to mining, in particular to equipment for the production of the cementing of rocks for the purpose of their hardening or water suppression.

The aim of the invention is to reduce the labor intensity and improve the quality of the cement works.

FIG. 1 shows the injector at the time of installation, a longitudinal section; in fig. 2 - the same, with the injection of cement slurry.

The injector for cementing rocks consists of an external flexible, inextensible hose-shell 1, inside of which a hose 2 can be freely let-through, made of elastic material (for example, vacuum rubber, etc.) capable of being stretched by pressure, passage of cement through the hose cement slurry. The elastic hose 2 at the free end is provided with an internal tide 3, and the other end thereof is connected inside the casing hose 1 with a suction inexhaustible hose 4. The casing hose 1 together with the internal hoses 2 and 4 is placed in the hole 5, and the joint 6 of the internal hoses 2 and 4 has a one-way movement, since the hose-shell 1 is provided with a movement limiter 7 mounted at the end.

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five

five

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The injector works as follows.

Hose shell 1 is inserted into the drilled ujnyp 5 to a depth where excessive expansion of the mouth ends (to 0.3-0.5). Moving inside it the joint 6 of the internal hoses 2 and 4, lower the free end of the elastic hose 2 to the required depth of reinforcement. Then through the rigid inner hose 4 and the elastic hose 2 is fed under pressure cement slurry. Under the action of the pressure of the cement slurry, the elastic hose 2 expands inside the PS-flange 1 and the hole 5, thereby ensuring that the injector spreads out and seals the plug-in area. Expanding from the overpressure, the internal tide 3 passes the cement slurry into the hole 5.

If it is necessary to remove the injector or change the depth of hardening, the pressure of the solution is released, which returns the injector to its original position.

The proposed injector device for injection of the cement slurry allows working in holes with significant surface irregularities and a diameter not sustained in length. The device allows multiple use of the injector, convenient for installation and disassembly in cramped mining conditions.

Compiled by L. Berezkiya

Tehred I. VeresKorrektor O. Lugova

Circulation 470 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

Claims (3)

1. INJECTOR FOR TAMPON WITHOUT BREEDS, comprising a shell-case, a flexible hose and a supply hose placed therein, installed in a borehole, characterized in that, in order to reduce the complexity and improve the quality of the tampon press work, the shell-shell is made of inextensible flexible material, and the flexible hose is mounted with the possibility of longitudinal movement in it, while the flexible hose is connected at one end to a supply hose inside the housing, and the other end is made free and protruding from the housing-shell. 2. Injector by π. 1, characterized in that the free end of the inner flexible hose is provided with an internal tide, the rigidity of which corresponds to the pressure of the initial expansion of the elastic hose, 3. Injector by π. 1, characterized in that the housing shell is provided with one-way restrictor _with the longitudinal pereme- scheniya inner flexible hose. SS ¢ 7 // 2 f