Spraying and granulating separation column with jacket cooling system on taper section

Abstract

The invention relates to a spraying and granulating separation column with a jacket cooling system on a taper section. The main structure of the separation column mainly comprises a granulating column body, a spraying and granulating nozzle system and a lower discharge pot from top to bottom, wherein the granulating column body can be formed by a separation and precipitation section, a taper section and a jacket cooling system; the spraying and granulating nozzle system can be formed by a distributor master pipe and a plurality of distributor branch pipes; the distributor branch pipes are symmetrically distributed, and the jet direction of the outlets of the distributor branch pipes form a certain angle with the vertical direction, which can form a rotating flow field with tangential velocity; the jacket cooling system comprises a tangential cooling water outlet, a radial cooling water inlet and a jacket main body; and cooling water rotates and upwards flows in a jacket, separated particles rotate and downwards flow in the spraying and granulating separation column, and the rotating and flowing directions of the cooling water and the separated particles are opposite to form contranatant heat exchange. In the invention, rotating flow fields of different degrees can be formed in the granulating column through adjusting the angles of the charge distributor and the number of the distributor branch pipes to realize different particle distribution states and improve the gas-solid separation efficiency; and different heat exchange efficiencies can be realized through adjusting the temperature, the pressure and the flow rate of a cooling water inlet and the structural size of a cooling water jack, and then the particle temperature can be reduced to control the temperature of the granulating column.

Description

Technical field [0001] The invention belongs to chemical separation engineering mechanical equipment, in particular to a spray granulation separation tower with a jacket cooling system in the cone section, which can be applied to the spray granulation and separation process of asphalt residue in the heavy oil cascade separation process. While efficiently separating the solvent and the particles, the granulation system can effectively absorb the excess heat in the granulation tower, ensure the heat balance in the granulation separation tower, and cool the particles, which is conducive to the smooth progress of the process and the next step of the particles delivery. Background technique [0002] In the supercritical cascade extraction separation process of heavy oil, after the separation of high-quality components such as deasphalted oil, the remaining residues such as asphalt and colloids need to be subjected to flash spray granulation for subsequent processing and applicati...

AI Technical Summary

Problems solved by technology

[0003] In order to overcome the problem that in the existing spray granulation system, the temperature in the tower is still too high after the flash vaporization of the solvent during the supercritical spray granulation process, which brings difficulties to the s

Images