SU1659771A1 - Apparatus for sampling high-temperature dust laden gases - Google Patents

Abstract

The invention relates to devices for sampling high-temperature dusty gases and reduces the content of elemental sulfur and dust in the sample fed to the analyzer, easier to maintain and design. The purpose of the invention is to increase the degree of purification of gases from sulfur and dust, facilitate operation and simplify the design. The device contains an intake pipe, a chamber with partitions, a water seal in the form of a sulfur melt, a pipe for discharging the cleaned gases and heaters, the partitions being made in the form of cylinders, coaxially arranged around the intake pipe, their lower ends are immersed in the sulfur melt, and Heaters are made in the form of plates and installed above the partitions. 1 hp f-ly, 1 ill.

Description

The invention relates to devices for sampling gases from high-temperature dusty media containing fumes of elemental sulfur, and can be used in the metallurgical, chemical and petroleum refining industry.

The purpose of the invention is to increase the degree of purification of gases from sulfur and dust, facilitate operation and simplify the design.

The drawing shows a General view of the device.

The device comprises a housing 1, in the center of which an inlet tube 2 is vertically mounted along an axis, provided with a jacket 3 with heat carrier, which ensures that the temperature in the tube is maintained above the condensation temperature of sulfur vapor contained in the sample of the gas to be extracted. Coaxially around the entrance tube 2 are partitions 4, made in the form of cylinders. Above the partitions 4 are placed heaters 5 fixed on the intake tube, on which the final purification of the gas takes place. The lower ends of the inlet tube 2 and the cylindrical partitions 4 are immersed in sulfur melt, the level of which is maintained by the hydraulic lock 6. Condensed sulfur is released through the hydraulic lock 6 or valve 7. The branch pipe 8 for exhaust gas on the gas analyzer is equipped with a steam jacket 9 to the hydraulic lock level .

The device works as follows.

Through the steam jacket 9, saturated steam is supplied, the lower part of the body 1 is heated and liquid sulfur is poured to the level

ABOUT

ate yu

VI

VI

water seal 6. The inlet tube 2 is introduced into the gas stream, the gas passing through the tube enters the molten liquid sulfur in which the vapor of elemental sulfur condenses and dust is deposited. Next, the gas moves between the inlet tube 2 and the partition 4 rises up, again descends over the annular space between the partitions 4 and enters the sulfur melt. The installation of cylindrical partitions allows the sampled gas to be passed several times through the liquid sulfur melt, which eliminates the passage of sulfur and dust into the gas sample entering the analysis.

Having passed the last partition, the gas passes between heaters 5, where its final cleaning takes place due to the condensation of sulfur and dust deposition on the wide dish-shaped surface of the heaters. The purified gas through the pipe 8 enters the gas analyzer.

The condensed sulfur is discharged through the hydraulic lock 6 or through the valve 7. The temperature in the upper part of the gaseous tube 2 through the jacket 3, in which the coolant circulates, is maintained within the limits that prevent the condensation of sulfur vapor on the inner surface of the tube.

The proposed device is tested on metallurgical gases containing 25-200 g / m of elemental sulfur vapor, 5-25 g / m3 of dust.

Example. Gas samples were taken at the pilot plant for melting in a liquid bath of copper sulphide-containing raw materials containing 50, 100, 150 g / m3 of elemental sulfur and 25, 5, 20 g / m3 of dust

accordingly in the amount of 1000 l / h each. The design of the device makes it possible to almost completely catch sulfur and dust. The degree of sulfur removal was

99.98%, from dust-99.99% with continuous operation of the device during the day.

The proposed device in comparison with the known allows to bring the degree of purification of gases from sulfur and dust to 99.98% and

99.99%, respectively, instead of 99.8% in the known device; and in addition, to facilitate the operation of the device and simplify its design by making heaters in the form of plates with coolant instead of

Claims (2)

1. A device for sampling high-temperature dusty gases, containing an inlet tube, a chamber with a partition, a water trap with a molten sulfur, a pipe for discharging cleaned gases and heaters, characterized in that in order to increase the degree of gas purification from sulfur and dust, facilitate operation and simplify the design, the partition is designed as a cylinder, the chamber is equipped with coaxially arranged around the cylinder and the inlet tube, additional bulkheads, the lower ends of the partitions and the inlet tube are immersed in the sulfur melt, and Heaters are made in the form of plates and installed above the partitions. 2. The device according to claim 1, wherein the inlet tube is equipped with a jacket with heat carrier installed up to the level of the lower plate.