SU1346821A1 - Apparatus for determining gas content - Google Patents

Abstract

The invention relates to the mining industry and can be used to determine the gas content of samples of outburst salt. The goal is to expand the range of measured gas content by increasing the volume of the internal space of the device. The device is made in the form of body 1, inner cup 2, tray 3 and bladder 18. The latter is made of thin elastic rubber and connected by fitting 12 with cup 2. When the device is tilted, sample from tray 3 is poured out into the liquid on the perforated bottom of cup 2. The sample dissolves that causes a change in the volume of gas above the surface of the solution. The gas through the opening 17 in the upper valve 4 and the fitting 12 enters the elastic cylinder 18, and through the opening 16 into the cylindrical cavity 5. As the cylinder 18 is filled, it expands and increases in volume. The change in pressure is recorded by a pressure gauge 9. The volume of gas injected is calculated on the basis of the diameter of the sphere formed by the balloon 18 and the volume of air in the device. 1 PC. i С /) с 4 О5 00 to

Description

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11346821

The invention relates to the 1 st industry and can be used to determine the gas content of samples of outburst salt.

The aim of the invention is to expand the range of measured gas content by increasing the volume of the internal space of the device.

The drawing shows the device section.

The device comprises a housing 1, a tumbler 2 with a perforated lower part, a tray 3, an upper cover 4, a cylindrical cavity 5, a piston 6 with a seal, a piston rod 7, a connecting tube 8, and an i-shaped pressure gauge 9, a flange 10 of the housing, a button 11 of the tray, fitting 12, screw 13 clamp, clip 14 clamp, sealing gasket 15, hole 16, hole 17, elastic cylinder 18 and the intermediate partition 19.

A device comprising a housing 1 in which a cup 2 is hermetically sealed with a perforated lower part and an external thread on top (the thread protrudes above the surface of the housing 1) has a hermetically fixed intermediate partition 19 "The partition 19 has the shape of a circle with a cut in the shape of a segment, therefore fixing it in the glass 2, the segment-shaped cut should be located above the tray 3. A thread 4, made with a cylindrical cavity 5, which, with the help of STI 16 and through a window segment formed by cut segmento- prominent intermediate partition 19 communicates with the space above the water surface, i.e. The cavity of the inner cup, In the cylindrical cavity 5 there is a piston with a yoke and a stem 7. The keyhole 4 has an opening 17 with a nozzle 12, the baffle space communicated with an elastic balloon 18 by means of an aperture.

The connecting tube 8 of the undercut space is also communicated with an i-shaped pressure gauge 9. In the wall of the housing 1 and cup 2, a through hole is made symmetrically with respect to the vertical axis of the device to accommodate the tray 3.

Krishka .11 Tray 3 with compacted e

The flange 10 of the housing 1 and on the contour hole 10 of the housing 1 and with the help of the clip 14 of the clamp and screw 13 of the clamp seals the through hole.

The tray has the shape of a scoop with the bottom curved up (with respect to the water surface), which prevents premature spillage of the rock sample into the liquid. The tray is rigidly attached to the lid by means of the end part of the rectangular shape. Since the lid is made with dimensions and large dimensions of the end part of the tray, when the krischka and the tray are rigidly fixed, a rectangular shaped shelf is formed, along the contour of which a gasket 15 is placed, helping to seal the internal volume of the device.

The tilt angle of the tray should be such that, in the normal position of the device, the rock sample does not spontaneously spill out.

For a sample of salt rock of 30 cm in the loosened state, the slope angle is 15-20.

The device works in the following way.

Through a hole in the side wall 30 of the housing pour a certain amount of liquid, such as water, inside the device. Tray 3 is packed with the required amount of crushed salt rock or another gas-bearing substance, for example, calcium carbide. The tray is inserted into a through-hole made in the wall of body 1 and cup 2, and its lid 11 is pressed tightly against flange 10 housing 1 with screws 13 and staples 14.

By moving the piston 6 with a seal and a rod 7, set the zero position of the level in the U-shaped mano-6 with a seal 45 meters. Then the whole device is inclined 4 has 15-20 to the side opposite to the tilt of the sample tray, and the sample is poured into the liquid on the perforated bottom of the glass 2. The sample dissolves, which causes a change in the volume of gas above the surface of the solution, due to the presence of pores and gases included in the rock, and the gas released in the free phase fills the free space of the device above the fluid and through the hole 17 in top 4 and fitting 12 enters the elastic cylinder 18, and through

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the gasket 15 with its shelves supports - the hole 16 - into the cylindrical along

cavity 5. As the balloon 18 is filled, it expands and increases in volume. Since the elastic cylinder 18 is made of thin rubber, it is evenly stretched when filled with gas, and its volume increases in proportion to the diameter of the resulting sphere in the cube. The change in pressure through the connecting pipe 8 is reflected in the displacement of the level in the i-shaped manometer 9. The device establishes a new gas pressure, which is mainly determined by the elasticity of the rubber of the cylinder 18 and does not exceed 100 mm Hg. Art. At the end of the gas gap, which is recorded at the time of stabilization of pressure in the device and is equal to 4 r, the diameter of the sphere d formed by the elastic balloon is determined, and the volume of gas that is leached when the rock sample is dissolved, is calculated by the formula

VP (Vo + 0.52d3) (H- 4p),

where V is the volume of gas that has been leached by dissolving the rock sample at a temperature equal to the temperature of the solution; PP - the amount of air in the device. The temperature of the solution is determined immediately after determining the diameter d with a mercury thermometer. The amount of air in the device is determined by the known

Compiled by M.Gagulin Editor A.Vorovich Tekhred A.Kravchuk. Corrector M.Demchik

Order 5107/33 Circulation 428 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

468214

by methods. The diameter of the sphere is determined by the midsection, the contour of which is painted on the surface of the elastic balloon with ink beforehand. The diameter is measured with a vernier caliper with elongated jaws or determined by calculation after measuring the length of the contour of the midsection (section 10 of circumference) with a tight tape measure. The volume of gas evolution is then brought to normal conditions by a known method and is the normal gas content of the sample.

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Claims (1)

Invention Formula A device for determining gas content, comprising a housing with a flange, an inner cup with a perforated lower part, an intermediate bulkhead, an upper cover with openings, a piston with a seal and a stem, a fitting, a connecting tube, an i-shaped manometer, a tray with a grinder and fastening means, characterized in that, in order to expand the range of measured gas content by increasing the volume of the internal space of the device, it is equipped with an elastic balloon made of thin elastic rubber and connected with a fitting with a glass .