SU634162A1 - Apparatus for obtaining packing specimens - Google Patents

Description

The book is a matter of the mining industry and can be tested in order to obtain samples of hardening packing, whose strength build-up occurs under conditions similar to the conditions of hardening of the mixture in the array.

A device for forming bookmarks, a coaxial housing with an inlet pipe of the working medium and an elastic chamber located in it, equipped with filters and inlets and outlets for liquid | ll.

A disadvantage of the known device is that the elastic chamber, which is detachable and has inflection points, is quickly worn out, thereby reducing the reliability of the device. In addition, complex disassembly of the device is necessary for placement and removal of the device — first the housing, then the elastic chamber. When replacing the camera with a new one, difficulties arise in its manufacture (special molds are needed). All this creates difficulties in. maintenance of the device.

The aim of the invention is to improve the reliability of the design and provide ease of maintenance.

This is achieved by the fact that the device is provided with a lid having a groove and a bottom, between which an elastic chamber is fixed, the bottom being installed with the possibility of reciprocating movement.

The drawing shows the device, the overall appearance.

Claims (2)

The device consists of a frame 1, a housing 2 and an elastic chamber 3 located therein. The elastic chamber is tightly attached to the lid 4 by means of a ring 5. The bottom 6 is fixed on the elastic chamber 3 also by means of a ring and bolts and is installed with the possibility of reciprocating movement. Chamber 3 is equipped with the upper 7 and lower 8 filters. 36 Case 2 is equipped with a pipe 8 input of the working environment. To sample 10, fluid is supplied through the regulator and fluid inlet 11. At the expense of the grooves 12, a cavity is formed in the housing cover 4 between the nozzle 11 and the surface of the upper filter 7. The grooves 13 in the bottom 6 with the lower filter 8 form a cavity for collecting the filtrate and transferring it through the nozzle 14 of the liquid outlet and the valve to a special vessel. To ensure tightness, the bottom of the housing 2 is equipped with a seal. The device is equipped with regulating and instrumentation equipment: pressure gauges and pressure regulators. The device works as follows. Sample H (before hardening) is placed in an elastic chamber 3 between the upper 7 and lower 8 filters and is sealed by means of bolts and rings 5. The inner elastic chamber 3 with sample 1 of the bookmark is placed in housing 2. Considering in advance for which part of the massif the mountain development, it is planned to imitate the conditions of hardening of the filling mixture (with or without a load of leaching layers of the bookmark or without it), through the pressure regulator and pipe 9 into the cavity between the housing 2 and the elastic chamber 3 serves the working medium (water or air) and under I am holding her constant pressure in the process of work. The pressure of the working medium in this cavity imitates the amount of prigruz from the column of unconsolidated bookmarks relative to the point considered in the array. The installation of the bottom 6 with the possibility of reciprocating movement creates a pattern for setting the conditions of hardening in the conditions of the triaxial headspace. If you want to additionally simulate the conditions of hardening of the bookmark at a constant flow of fluid into the chamber, then through the regulator and pipe 11 B, a cavity formed by the grooves 12 of the cover 4 and the surface of the upper filter 7 is supplied with LIQUID. The pressure of the supplied fluid in this cavity should be equal to the pressure of the working medium, which is located in the space between housing 2 and chamber 3. With equal deprivations, the fluid to the sample 1O comes from its weight. The control over the regime of hardening of the solution in the elastic chamber is carried out using pressure gauges installed on the device. The sample in the specified mode is solid in the device until the prescribed period, after which the pressure is removed, the cover 4 opens, and from the obtained sample, the squirrels, cubes, and cores are cut out (pierced). Claims 1. A device for obtaining bookmark samples, including a housing with a working medium inlet pipe and an elastic chamber located in it, equipped with filters and nozzles for inlet and outlet of liquid, characterized in that, in order to increase reliability and ease of maintenance, it is equipped with the cover, and the bottom, between which the elastic chamber is fixed, and the bottom is mounted with the possibility of reciprocating movement. 2. A device according to claim 1, in which the lid and the bottom have grooves. Sources of information taken into account in the examination: 1. Application Ms 2188573, cl. ОНН 1 / ОО, 1975, according to which the decision to issue an author's certificate was made.