DEVICE FOR CRYOGENIC GRANULATION OF LIQUID SULPHUR Russian patent published in 2018 - IPC C01B17/02 B01J2/06 F25D3/10 

Abstract RU 2643556 C1

FIELD: oil and gas industry.

SUBSTANCE: device for cryogenic granulation of liquid sulphur includes a granulator 1, a loading pipeline 15, a process unit 4 for feeding liquid sulfur and discharging granulated sulfur, a liquid nitrogen supply pipe 16. The granulator 1 is made as a thermally insulated chamber with inner surface of cylindrical shape, in which the process unit 4 vertically coaxially installed for simultaneous involvement in the process of liquid sulfur granulation and withdrawal of granulated sulphur. The process unit 4 is equipped with a distributing element 7 for liquid sulphur supply into liquid nitrogen through holes for producing sulphur granules of given diameter, and a screw surface in the form of an auger 8 for discharging granulated sulfur, and a mechanical transmission 9 providing rotation of the process unit 4 about its axis from a drive 10 with variable speed. Liquid nitrogen is supplied to the granulator 1 at its lower central point. The distributing element 7 is located below the liquid nitrogen level in the granulator 1 and installed in lower part of the inner cavity of the process unit pipeline 4. The distributing element 7 is in the form of two perforated metal plates 12 - the upper and lower ones, between which a heating element 13 is located. The loading pipeline 15 is configured for suppling liquid sulphur into the inner cavity of the process unit 4 at the zone of the distributing element 7 in amount sufficient to maintain the level of liquid sulphur in the process unit equal to at least 0.45 to the level of liquid nitrogen in the granulator 1 from the upper plate of the distributing element 7. The area for release of sulphur granules from the granulator 1 is equipped with a flanging 3 which ensures the direction of sulphur granules movement into unloading hopper 17.

EFFECT: invention improves the quality of granular sulphur and efficiency of the process due to minimum possible consumption of liquid nitrogen.

4 cl, 1 dwg, 1 tbl

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RU 2 643 556 C1

Authors

Mikhajlenko Sergej Anatolevich

Konkov Aleksej Yurevich

Melnichenko Andrej Viktorovich

Pavlyukovskaya Olga Yurevna

Afanasev Igor Pavlovich

Idiatulin Sergej Aleksandrovich

Serezhnikov Aleksej Petrovich

Abajdulin Yurij Sergeevich

Chizhov Andrej Valerevich

Dates

2018-02-02Published

2016-11-15Filed