SU270756A1 - Saturator - Google Patents

Abstract

Continuous SATURATOR for saturating bulk materials with gas, consisting of a rotary drum (Wrapping drum enclosed in a pressure casing with auger feed and discharge of the saturated material, in order to increase production and ensure process safety, the outlet drum is equipped with a ring the threshold and is made with the ratio of the length of the drum to the inner diameter of the annular threshold, equal to or close to the cotangent of the angle of repose of the saturized material.

Description

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This invention relates to gas saturation apparatus for bulk materials.

The known continuous saturator, made in the form of a horizontal shelf rotary drum with feeding and unloading devices, does not provide the necessary productivity and process safety when working with explosive mixtures, for example, when the peatminmine mixture is saturated with ammonia gas.

In order to increase productivity and ensure process safety, in the proposed saturator, the drum at the exit is equipped with an annular threshold and is made with the ratio of the drum length to the inner diameter of the annular threshold equal to or close to the cotangent of the angle of repose of the material being saturated.

The drawing shows the described saturator.

It consists of a horizontal rotating drum -1 with an annular threshold 2 and shelves 3 enclosed in a casing 4 mounted on the same axis as the screw of a screw feeder 5, an ammonia feed inlet 6, a socket 7 and auger 8 for unloading material from the drum 1.

When the saturator is in operation, the bulk material is fed into the rotating drum 1 with a screw feeder 5, which simultaneously seals the casing 4

feed material. Parallel to the material, through the nozzle b, gaseous ammonia enters the drum 1, which is distributed throughout the internal volume of the rotary drum of the drum, meeting primarily with the freshly flowing pouring mass. The latter, when it falls in an atmosphere of ammonia, is subjected to uniform saturation. The saturated material flows by gravity through the pipe 7 into the screw 8, which at the same time serves as a gas lock and seals the saturator.

With a drum length ratio of 1 to

5 to the diameter of the opening formed by an annular threshold 2 equal to or close to the cotangent of the angle of repose of the bulk material, the latter is located in a rotating drum along an inclined plane from the threshold 2 to the top point above the entrance from the screw feeder 5 at an angle equal to the angle of the natural repose of the bulk material (See the dashed line in the drawing}. As the new batches, continuously supplied by the screw feeder 5, are supplied, the material under conditions of constant pouring gradually moves to the output, simultaneously but is in contact with the gas phase, and through threshold 2, as much material is poured out of drum 1 continuously as in the same time interval is fed by a screw feeder 5.

Claims (1)

SATURATOR of continuous operation for saturation of bulk materials with gas, consisting of a rotating shelf drum enclosed in an airtight casing, with a screw feed and unloading of a saturable material, characterized in that, in order to increase productivity and ensure process safety, the drum at the outlet is equipped with an annular threshold and is made with the ratio of the length of the drum to the inner diameter of the annular threshold equal to or close to the cotangent of the angle of repose of the material being saturated. SU, 270756