Wet Multi-Tube Cyclone Separator

Abstract

The invention provides a wet multitube cyclone separator. The wet multitube cyclone separator comprises a plurality of cyclone tubes, wherein the cyclone tubes are positioned between upper and lower baffles in a separator tube body; exhaust components of the cyclone tubes are inserted into the upper baffle; effluent discharge components of the cyclone tubes are inserted into the lower baffle; air inlet components of the cyclone tubes are positioned between the upper and lower baffles; a Venturi atomizer is arranged on the front side; the Venturi atomizer is connected with and arranged on the outer side wall of the separator tube body between the upper and lower baffles and is communicated with a gas inlet communicated with the internal gas circuit of the separator tube body and a gas inlet gas circuit; a liquid adding hole is formed in a pipe position of the Venturi atomizer. The wet multitube cyclone separator innovatively introduces a capture mechanism for fine particles by cyclone inner wall liquid membrane absorption, and greatly improves the separation efficiency of the separator under the combined action of centrifugal field and liquid absorption. The wet multitube cyclone separator is applied to an operation condition of high temperature under pressure, and the separation efficiency reaches up to greater than 99.99% or above in conditions of high concentration, small dust sizes (smaller than 5 to 10 micrometers), and high easiness in abrasion, adhesion and blocking.

Description

technical field [0001] The present invention relates to the field of heterogeneous phase separation in chemical engineering, in particular to the field of dust removal technology, and specifically refers to a wet multi-tubular cyclone separator and a purification process including the above-mentioned wet multi-tubular cyclone separator, especially suitable for high temperature and pressure , flammable, explosive or toxic and harmful gases (such as crude gas at gasifier outlet, organosilicon dust-containing synthesis gas and polysilicon dust-containing synthesis gas, etc.) , and its separation efficiency is as high as 99.99%. Background technique [0002] The high-temperature compressed raw gas synthesized by gasifiers (such as aerospace furnaces, multi-nozzle opposed liquid coal slurry gasifiers, and SHELL furnaces, etc.) contains relatively high concentrations of dust; the crude gas at the outlet of ordinary fixed-bed gasifiers also contains tar and Phenol and other impuri...

AI Technical Summary

Problems solved by technology

Although the above-mentioned dust collector can achieve higher dust removal efficiency than dry operation, it also has many defects: (1) The cyclone inside the dust collector is an axial flow inlet, and adopts a spiral or petal-shaped intake structure. The cyclone can not eliminate several main secondary vortices existing inside the cyclone. The cyclone has a better separation effect on larger particles, but still has a poor separation effect on finer particles.

(2) The water mist in the dust collector is sprayed by a fixed nozzle located in the air inlet pipe. The water atomization effect of the nozzle is not ideal, and the water mist is difficult to fully mix with the dusty gas, and the water mist cannot enter evenly Each cyclone, which in turn affects the separation effect

(3) The structure of the dust collector is not suitable for working conditions with high temperature and pressure, nor is it suitable for the gas phase to be flammable, explosive, toxic and harmful media. At the same time, the separation effect of high-concentration dust is poor, and the use has limitations.

(4) The dust collector uses a cyclone separator as a pretreatment to reduce the dust content in the air entering the wet multi-pipe cyclone separator, but this increases the number of equipment, increases the floor space and manufacturing cost of the equipment

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