CN203816267U - Multi-stage spiral continuous countercurrent leaching device - Google Patents

Abstract

The utility model relates to a multi-stage spiral continuous countercurrent leaching device used for leaching active ingredients out of natural products (particularly traditional Chinese medicinal materials), and belongs to the technical field of extraction of Chinese traditional medicine. Aiming at the defect that non-interstage solid-liquid separation or interstage solid-liquid separation in the prior art is not thorough, the multi-stage spiral continuous countercurrent leaching device is characterized in that material conveying ends among multiple sections of machine grooves provided with a heating component and/or an ultrasonic wave component are connected with input ends in parallel end to end in a roundabout manner through an oblique conical spiral conveying and extruding machine, are communicated with material countercurrent solvents or solutions through liquid transport pipelines with liquid level differences, and extracted liquid at each stage can be completely separated from the medicinal materials as much as possible. On the premises of energy conservation and consumption reduction, compared with the prior art, the multi-stage spiral continuous countercurrent leaching device significantly improves the leaching rate and increases the yield.

Description

Multiple coil formula continuous countercurrent leaching device

Technical field:

The utility model relates to a kind of multiple coil formula continuous countercurrent leaching device that active ingredient in natural products (especially Chinese medicine) is leached, and belongs to traditional Chinese medicine extraction technical field.

Background technology:

Under heating and/or ul-trasonic irradiation, multiple stage continuous adverse current extract technology is to improve leaching rate, yield and quality, energy-saving consumption-reducing, the effective way of minimizing operating cost.In leaching process, the completeness of every grade of Separation of Solid and Liquid is very important.After every grade of leaching completes, the ratio of this active ingredient amount in the active ingredient amount in spice and leachate, has material impact to leaching yield.If after leaching, Separation of Solid and Liquid is not thorough, can affect this ratio, thereby affects yield.Separated just had certain upper level active ingredient concentration after thoroughly also can not making fresh solvent that rear one-level adds or solution rigidly connect to touch medicinal material, to liquid-solid equilibria to leaching the movement of direction or the increase of leaching rate is all disadvantageous, therefore after every one-level has leached, should allow the leachate of every one-level completely separated as much as possible with medicinal material.

By producer's several extractors of employing, formed the multilevel counter-flow extraction technique of " adverse current tank group ", can limited raising yield.But still be static intermittently operated, after every one-level has leached, while emitting leachate, to give long time and make leachate as far as possible separated with medicinal material, this is both consuming time also not exclusively separated.The patent No. is that the patent of 002119080.X discloses a kind of spiral continuous countercurrent leaching device with heater and/or ultrasonic wave member, arrangement form is the horizontal head and the tail serial connections in one line of several sections of troughs, the conveyor screw of trough is only promoted by a driving mechanism, the major axis of serial connection is subject to compression, if operation be obstructed, major axis because of compression is excessive will " rod member unstability ", cause bending, even fracture, and complete machine is long to workshop layout, unfavorable to operating, clean, keeping in repair.Though this dynamic countercurrent leaches, effect is better relatively, although formed by more piece trough serial connection, but in technique, be still one-level continuous reverse flow leaching, there is no Separation of Solid and Liquid program therebetween, have back-mixing (leachate that is different levels variable concentrations in leaching process mixes mutually), back-mixing can affect the raising of leaching effect.

Summary of the invention:

The purpose of this utility model is to provide a kind of at apparatus arrangement, technique and more scientific rational multiple coil formula continuous countercurrent leaching device economically, not only every grade of continuous reverse flow leaching process is under preference temperature condition, create and keep improving leaching rate in concentration difference, and the leachate of every grade of inter-stage reaches completely separated as much as possible with medicinal material, the height that obtains high-quality active ingredient in energy-saving and cost-reducing leaches yield.

The purpose of this utility model is to reach by following measure, comprise that one end has loader and liquid outlet, the other end has the trough of slag-discharging device and inlet formation, the conveyor screw on the axle that connects driving mechanism with porous helical blade is set in trough, trough outside has heating jacket and/or ultrasonic wave member, particularly, several sections of trough parallel shapes are set up in parallel, between trough, mass transport end and material input are held concurrently extruder by taking over and supplying by being the skewed helical feed with conical shell, discharge gate is connected, make several sections of troughs form the roundabout connection of parallel shape head and the tail, and, between several sections of troughs, by the liquid-transport pipe-line with the high position gravity flow of liquid level difference, be communicated with, be integrally formed the multiple coil formula continuous countercurrent leaching device of interlock.

Deficiency for stepless Separation of Solid and Liquid in prior art or the aspect such as inter-stage Separation of Solid and Liquid is not thorough, adopt after structure of the present utility model, because trough outside is provided with heating jacket and/or ultrasonic wave member, at cavitation effect, under fuel factor effect, crude drug cell wall breaks fast, cause solvent and accelerate the active ingredient in infiltration and dissolved cell, continuous reverse flow leaching process is constantly being created and is being kept under the advantages such as Cmax is poor, increased the mass transfer force leaching, Dynamic Leaching makes diffusion boundary layer thin and upgrade fast, thereby leaching resistance to mass tranfer reduces, thereby improved leaching rate, again due to mass transport end between several sections of troughs and material input by the helical feed that is the skewed conical shell with extruded member hold concurrently extruder by take over and supply, discharge gate is communicated with, between several sections of troughs, be provided with the leachate liquid-transport pipe-line of the high position gravity flow of liquid level difference, so just make this one-level leachate being extruded reflux this one-level trough from being skewed cone housing, like this, the material active ingredient that this one-level leaches is also left in the leachate of this one-level.At different levels like this successively, make the leachate of every grade completely separated as much as possible with medicinal material, only allow the immersed material of appearing enter next stage, the leachate of next stage flow into upper level, namely allows less the material active ingredient having leached flow into next stage as far as possible.Like this, what just can make first one-level outflow is that active ingredient obtains the leachate fully leaching, and what last one-level was discharged is to contain hardly the material slag of active ingredient.If every one-level is only calculated by 70% leaching yield, second level yield can reach 91% so, and the third level can reach 97.3%, increases progression, and yield is higher.Compared to prior art, there is significant beneficial effect.

Accompanying drawing explanation:

Fig. 1 is the front view of first specific embodiment of multiple coil formula continuous countercurrent leaching device of the present utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is A-A cutaway view in Fig. 2;

Fig. 4 is B-B cutaway view in Fig. 2;

Fig. 5 is C-C cutaway view in Fig. 2;

Fig. 6 is D-D cutaway view in Fig. 2.

The specific embodiment:

Multiple coil formula continuous countercurrent leaching device shown in Fig. 1,2,3, it comprises that one end has loader 15 and tap hole 14, the other end has the slag-discharging device 7,2 of squeeze function and the several sections of troughs 1 of inlet 6.The interior setting on the axle 11 that connects driving mechanism of trough 1 has the conveyor screw 10 that porous helical blade 12 forms, trough 1 outside has heating jacket and/or ultrasonic wave member 13, several sections of trough 1 parallel shapes are set up in parallel, 1 mass transport end of adjacent trough and material input are held concurrently extruder 2 by adapter 16 and are supplied by the skewed helical feed with conical shell, discharging opening 4, 5 are connected, like this, just make several sections of troughs 1 form the roundabout connection of parallel shape head and the tail, every joint trough 1 and auger-conveying extruder 2 are all furnished with driving mechanism separately, stressed improvement, complete machine length and width are coordinated at high proportion, being conducive to workshop arranges, operation, clean, maintenance, and 1 of several sections of trough are communicated with by the liquid-transport pipe-line 9 with the high position gravity flow of liquid level difference, form and be conducive to solution and material antikinesis, the multiple coil formula continuous countercurrent leaching device of one interlock.Particularly, the last period that helical feed is held concurrently the interior material operation of skewed conical shell of being of extruder 2, helical blade 17 is set to bend tooth pattern, the blade protruding is similar to the effect of stationary hopper, when rotating, rotating shaft can make material constantly be promoted to extruded segment, and in casing latter one section of material operation, helical blade 18 is set to reducing pattern, the casing of Reducing screw blade 18 correspondent sections has fluid aperture 19 and is subject to liquid chuck 3 and is connected and communicates with the machine trough 1, along with Reducing screw blade correspondent section pitch space is more and more less, the leachate being squeezed out in material is pooled to and is subject to liquid chuck 3 to flow back to trough 1 at the corresponding levels from aperture 19, the material being extruded is from supplying, discharging opening 4, 5 fall in next stage trough 1, continue the leaching operation of next stage or enter shingle machine 8, realize thus Separation of Solid and Liquid.

Shown in Fig. 4, for convenience of operation, cleaning and maintenance, the general cross section of trough 1 of spiral continuous reverse flow leaching is U-shaped, but in Chinese medicine materials, mostly be root, stem, leaf, flower, careless class particle, proportion is lighter, and material is conventionally only positioned at trough 1 bottom in trough, and be partial to the sidewall of direction of rotation, proportion swims in liquid level region compared with light material particles and is difficult to be advanced operation by conveyor screw 10 in liquid.The utility model trough 1 cross section is also U-shaped, above trough 1 internal spiral 10, arrange and connected by adjustable fastener 20, is furnished with the arc binder cover 21 of gap and densely covered aperture with conveyor screw 10 tops, like this, even if the lighter material particles of proportion also can be pressed in conveyor screw by this arc binder cover 21 and advance in region and push ahead, avoid swimming in liquid level region and can not advance.

Shown in Fig. 5, the feed joint of trough 1 is communicated with the filtration joint 20 being connected with driving mechanism by adapter, the end plate axis hole place of these filtration joint 20 drive ends arranges the cylindrical shape sphere filter 24 with leakage opening 25, this sphere filter 24 is connected with the cartridge filter 21 that is provided with removable tapered tube shape in filtration joint 20 troughs 1, axle through sphere filter 24 and cartridge filter 21 is provided with the porous Reducing screw blade 22 with elastic scraper 23 matching with sphere filter 24 and cartridge filter 21 internal diameters, filter joint 20 trough 1 sidepieces and be provided with tap hole 14, filter joint 20 trough 1 bottoms and be provided with hydrops outlet 26. like this, the material particles that enters cartridge filter 21 is not only scraped but also is pushed away under effect at the porous Reducing screw blade 22 with elastic scraper 23 matching with cartridge filter 21 internal diameters, add Action of Gravity Field, the direction operation that will advance towards helical blade 22, leachate is by cartridge filter 21, sphere filter 24 filters, from tap hole 14, flow out, reach Separation of Solid and Liquid and do not run the object of material.This cartridge filter 21 is removable, and it is also very convenient to clean, change.

Shown in Fig. 6,1 of several sections of trough are under liquid level difference effect, liquid-transport pipe-line 9 liquid outlet 27 place trough 1 places of high-order gravity flow arrange the filter chamber 28 with densely covered aperture, and helical blade 12 edges of filter chamber 28 relevant positions have elastic scraper 29, can make flow of solution smooth and easy.

Claims (5)

1. a multiple coil formula continuous countercurrent leaching device, comprise that one end has loader (15) and tap hole (14), the other end has slag-discharging device (7), and the several sections of troughs (1) of inlet (6) (2), in trough (1), arrange on the axle (11) that connects driving mechanism and there is the conveyor screw (10) that porous helical blade (12) forms, trough (1) outside has heating jacket and/or ultrasonic wave member (13), it is characterized in that: several sections of troughs (1) parallel shape is set up in parallel, between adjacent trough (1), mass transport end and material input are held concurrently extruder (2) by taking over (16) and supplying discharging opening (5) by being the skewed helical feed with conical shell, (4) be connected, make several sections of troughs (1) form the roundabout connection of parallel shape head and the tail, and, between several sections of troughs (1), by the liquid-transport pipe-line (9) with the high position gravity flow of liquid level difference, be communicated with, be integrally formed the multiple coil formula continuous countercurrent leaching device of interlock.

2. multiple coil formula continuous countercurrent leaching device according to claim 1, it is characterized in that: described in be the skewed helical feed with the conical shell extruder (2) of holding concurrently, the last period of material operation in its casing, helical blade (17) is set to bend flute profile formula, in casing latter one section of material operation, helical blade (18) is set to reducing pattern, and the casing of Reducing screw blade (18) correspondent section has fluid aperture (19) and is subject to liquid chuck (3) and is communicated with trough at the corresponding levels (1).

3. multiple coil formula continuous countercurrent leaching device according to claim 1, it is characterized in that: the cross section of described trough (1) is U-shaped, in the top of trough (1) internal spiral (10), arrange by adjustable fastener (20) and connect, be furnished with the gather arc binder cover (21) of aperture of gap with conveyor screw (10) top.

4. multiple coil formula continuous countercurrent leaching device according to claim 1, it is characterized in that: the feed joint of described trough (1) is communicated with the filtration joint (20) being connected with driving mechanism, this filtration joint (20) drive end end plate axis hole place arranges the sphere filter (24) with leakage opening (25), this sphere filter (24) is connected with the removable circular cone type cartridge filter (21) being provided with in (1) in filtration joint (20) trough, through the axle of sphere filter (24) and cartridge filter (21), be provided with the porous Reducing screw blade (22) of the band elastic scraper (23) matching with sphere filter (24) and cartridge filter (21) internal diameter, filter joint (20) sidepiece and be provided with liquid outlet (14), filter joint (20) trough (1) bottom and be provided with hydrops outlet (26).

5. multiple coil formula continuous countercurrent leaching device according to claim 1, it is characterized in that: between described several sections of troughs (1), liquid-transport pipe-line (9) liquid outlet (27) the place trough (1) of high-order gravity flow locates to arrange the foraminate filter chamber of tool (28), and helical blade (12) edge of filter chamber (28) relevant position has elastic scraper (29).