Internally-heating clean supercritical mixed fluid separating kettle

Abstract

The invention discloses an internally-heating clean supercritical mixed fluid separating kettle. The internally-heating clean supercritical mixed fluid separating kettle comprises a kettle body, a flow baffle, a flow collecting hood and a mixed fluid heating heat exchanger, wherein the kettle body comprises an upper gas flow chamber and a lower separating chamber; a mixed fluid passage and a heatmedium passage are formed in the mixed fluid heating heat exchanger; a heat medium in the heat medium passage heats a mixed fluid in the mixed fluid passage; the mixed fluid heating heat exchanger ispositioned inside the upper gas flow chamber in the kettle body; a mixed fluid educing pipe is communicated with the flow collecting hood in the lower separating chamber; the flow baffle is arranged inside the flow collecting hood; separated supercritical gas enters the upper gas flow chamber from the lower separation chamber and is discharged from a supercritical gas discharging port of the uppergas flow chamber; a separated deposit is deposited in the lower separating chamber. The internally-heating clean supercritical mixed fluid separating kettle adopts a supercritical fluid phase separation-type working mode, can separate a supercritical fluid from an extract or a pigment at the maximum efficiency, and is relatively thorough in separation; the internally-heating clean supercritical mixed fluid separating kettle is a separation kettle applied to supercritical extraction and supercritical flow dyeing.

Description

technical field [0001] The invention relates to a separation kettle, in particular to a supercritical mixed fluid separation kettle. Background technique [0002] The State Intellectual Property Office published a patent document with a publication number of 208771017U on April 23, 2019. It discloses a supercritical dyeing recovery and separation kettle. , to filter a large number of dyes and impurities precipitated by the dyed supercritical gas during the pressure relief process. The present invention is the first in the field to introduce the use of sintered metal porous filter material to prepare the tank cover and tank bottom of the recovery separation tank, which makes full use of the large number of pores inside the porous metal, and can eliminate the precipitated supercritical gas after dyeing during the pressure relief process A large number of large-scale impurities such as dyes and oligomers are filtered. The recovery and separation tank itself forms the first la...

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Problems solved by technology

[0003] The above technical solution is different from the technical solution of this patent, and compared with this patent, the separation of the above technical solution is not thorough enough

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