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Thermal circumflence extractionconcentrator
The device serves for vegtable and herbal medicine、China
traditional drug、animal drug、food additional to extract with
water、ethanol、carbinol and acet and to reclaim and concentrate the
organic solvent.
Technology Parameter：
Operation principle
Put the drug material intl the extraction tank and insert the
solvent such as water,ethanol,carbinol and acet,etc(in accordance
with the technology requirement)whose capacity is five to ten times
the drug material.The tee in the extraction tank and the vapor
valve of clip sleeve open to heat the extraction liquid until boil
that will last for about twenty to thirty minutes and then the
extractionfilter pipe sorbs one third extraction liquid into the
concentrato.And the tee in the extraction tank and the vapour valve
of clip sleeve are closed and the heater valve is opened to
concentrate the material liquid.The second vapor produced during
concentration can enter the extraction tank through the upward pipe
at the evaporator to serve as the heat source for extraction to
maintain the boil inside the tank.
The second vapor continues rising to change into the condensation
liquid by the condensator and falls back inside the extraction tank
to serve as new solvent to be added at the drug surface.The new
wolvent arrives down at the bttom of the extraction tank throughout
the drug material layer.The dissoluble effective content at the
drug material is resolved into the solvent inside the extraction
tank.The extraction liquid enters the concentrator.by the
cxtraction ＆filter pipe and the second vapour produced for
concentration arrives the extraction thank to serve as heat source
and new solvent .The extraction of new solvent with large
circumfluence can make the density of the drug material and solvent
at high grads.The solvent in the drug material separates out at
high speed until a complete until a complete separation(i.e.the
extraction liquid is colorless).Then,the extraction liquid stops
entrance of the concentrator.The concentrated second vapor enters
the cooler to continue concentration until the drug cream with
reuse.The drug residue is drained out of the residue outlet.In the
case of extraction with organic solvent,it is necessary to add
proper water and open the tee and the clip sleeve vapor valve.After
reclamation of sovent,the residue is drained.
Equipment feature
1、 The rate for cream collection is 10-15%higher than that of the
multiple function tank ,and the effective content inside thecream
is one time higher than the normal one.Because the heat solvent is
added into the drug surface continuously and then they pass the
drug layer from up to down with high speed to solve the solute in
the drug material during the extraction,so the solute in the drug
material and the solute in the solvent keep high grads.if the
solute in the durg material can separate out with high speed until
it separates out ,then the extraction extent of the effective
content is high.Because the concentration is finished inside the
seal device with little loss and high transformation rate,so the
rate for cream collection is high and the effective content inside
the drug cream is high.
2、 For the factors of high speed of separation out of solute,short
time of extraction synchronous operation of concen-tration and
extraction,the time from changing the drug material into the
concentrated drug cream is only seven to eight hours which
highlights high equipment utility.
3、 The equipment is simple and has little use area and features
high equipment utility,which highlights economic investment.
4、 The extraction just needs one time of use of solvent,which is
used cyclically in a set of seal equipment,The solvent in the drug
residue can be reclaimed basically,which makes the solvent quantity
is 30%less than that of the multiple function extraction tank and
the solvent consumption is 50-70%less than that of the multiple
function extraction tank.The above advantages make it available the
extraction of organic solvent and purification of effective content
in the China traditional drug.
5、 Fot the concentrated secondary vapor serving as heat source,the
extraction liquid into the concentrator is at the same temperature
level with that of the concentrator,which can save the vapor for
more than50%and feature easy operation and reduces the operator.
