Multistage pot type Continuous Countercurrent Extraction unit
This utility model relates to a kind of water or organic solvent of utilizing to natural animal-plant, the device that Chinese crude drug is extracted particularly, and especially multistage pot type Continuous Countercurrent Extraction unit is applicable to pharmacy and light industry and chemical field.
At present, there is Batch Process in the batch (-type) multipotency extraction pot that generally uses in commercial production, operation is heavy, the solvent use amount big, the extraction rate of effective ingredient and extract shortcomings such as recovery rate is low.The continuous leaching machine of another kind of spiral or slot type has but that system equipment is many, investment and floor space is big or stirring efficiency is low, be not suitable for deficiencies such as the low and production capacity of solid-to-liquid ratio, extraction efficiency in difficult material, the backflow that can not control extracting solution and the regulating tank that extracts is little.
The purpose of this utility model is in order to overcome the shortcoming of prior art, provide a kind of adopt the extraction rate of continuous countercurrent extraction process, easy and simple to handle, effective ingredient and extract the recovery rate height, reduce solvent load, multistage pot type Continuous Countercurrent Extraction unit that the production cost underproductivity is big.
The technical solution of the utility model is: a kind of multistage pot type Continuous Countercurrent Extraction unit, form by some elementary sections that comprise stirring-type extraction pot with heating jacket and horizontally-inclined spiral separator and connecting pipe thereof and valve.On the rotating shaft that is positioned at extraction pot central authorities, stirring paddle and spiral enhancing tube be housed, material in the jar and solvent evenly can be stirred and are promoted to the wedged bottom gravity flow that is welded in jar intravital top and be subjected to charging tray, again through its discharging opening, flow to the feeding mouth of the horizontally-inclined spiral separator that is connected with the latter.The spiral enhancing tube is by tapered cylinder and be welded in its inner screw auger and form.Spiral separator is transported to the extraction pot of next unit section with isolated solid extract, through the extraction pot charging aperture of its slag notch with the next unit section that is connected with it.But the spiral separator of last location section is transported to the waste residue container with isolated solid extract material.The isolated leachate of spiral separator, through liquid outlet and the three way cock who links to each other with it, the one, flow back to the extraction pot inlet of this elementary section through reflux inlet, the 2nd, the control valve through linking to each other, transport to the extraction pot inlet of last elementary section with the three way cock, but for the first module section, then be by linking to each other with the three way cock the product delivery valve, transport to product storage tank.
Adopt technique scheme can realize Continuous Countercurrent Extraction, can be according to the complexity of extracts active ingredients and the volume of production scale, selected cell hop count and extraction pot, can regulate the optimum temperature that hot water in the heating jacket or steam are controlled material in extraction pot and the spiral separator according to technological requirement, so the solid-to-liquid ratio of mixed material, the concentration and the output of regulating the finished product extracting solution in quantity that can be by being metered into solid material and solvent and the control extraction pot are available less solvent, the finished product extracting solution of acquisition higher concentration.
The utlity model has the extraction rate of serialization production, easy and simple to handle, effective ingredient and extract recovery rate height, advantages such as production cost is low, production capacity is big, applied range.
The utility model is described in further detail below in conjunction with drawings and Examples.
Accompanying drawing is a structural representation of the present utility model.
As shown in drawings, unit is made up of some elementary sections that comprise stirring-type extraction pot (18) with heating jacket and horizontally-inclined spiral separator (14) and connecting pipe thereof and valve.Go up, be equipped with stirring paddle (37) and spiral enhancing tube (3) at the rotating shaft (4) that is positioned at extraction pot tank body (17) central authorities, can make jar interior material and solvent evenly stir and be promoted to the band wedged bottom gravity flow that is welded in the top in the tank body (17) and be subjected in the charging tray (5), flow to the horizontally-inclined spiral separator feeding mouth (8) that links to each other with it through its discharging opening (6) again.Spiral enhancing tube (3) is by tapered cylinder (39) and be welded in its inner screw auger (40) and form.By the isolated solid extract of spiral separator, through the charging aperture (10) of its slag notch (9), transport to the extraction pot of next unit section with the next unit section extraction pot that is connected with it.But the spiral separator of last location section, with isolated solid extract, through slag notch (21) input waste residue container (22).Second elementary section and the later isolated rarer leachate of spiral separator (14), by liquid outlet (13) and the three way cock who links to each other with it (28), the one, transport to the extraction pot inlet (36) of last elementary section through control valve (30) and pipeline (31), the 2nd, flow into the extraction pot inlet of this elementary section through reflux inlet (29).But the first module section is isolated denseer leachate, is passed through liquid outlet (7) and the three way cock who links to each other with it (32), the one, through reflux inlet (35) part flow back to the extraction pot inlet (36) of first module section, with regulating tank in the solid-to-liquid ratio of material, the 2nd, the product delivery valve (33) through linking to each other, inflow product storage tank (34) with three way cock (32).Raw material through pretreatment processing is metered into by the cast feeder (1) that is installed on the first module section extraction pot charging aperture (2).Solvent is through solvent transfer valve (20) and effusion meter (23), and the extraction pot inlet (19) of last location section is transported in metering.Middle part outside tank body (17) and bottom be welded with heating jacket (38) respectively, and with fusing communicating pipe (24).In the lowest order of the heating jacket (38) of extraction pot (18) and spiral separator (14) and highest order, be welded with hot water inlet (27) and hot water outlet (15) respectively, by their the supply circulating hot water or steam, the solidliquid mixture material is heated, and according to production requirement, regulate its temperature.Be welded with thermometer socket (12) at the top of tank body (17), be used to install and measure jar in the thermometer of temperature of charge, and two air guide ports (11), reclaim by being connected with condenser, being used to or return tank in solvent.Cleaning port lid (16) is housed at the top of tank body (17), slagging port lid (25) is housed, bleeder valve (26) is installed, be respectively applied for residual jar of interior material slag and extracting solution of discharging when stopping production at the latter's center in the bottom of tank body (17).