CN217939206U - Continuous acidizing device of scutellaria baicalensis extracting solution - Google Patents

Abstract

The utility model discloses a continuous acidizing device of scutellaria baicalensis extract, including acidizing washing pipeline and centrifuge, acidizing washing pipeline sets up the reaction liquid entry including the reaction section and the washing section that are linked together in the reaction section, sets up washing liquid entry and product thick liquid export in the washing section, sets up screw conveyer in the acidizing washing pipeline, and screw conveyer is used for transporting the baicalin crystallization that the reaction section produced to product thick liquid exit, and product thick liquid export communicates with centrifuge's entry. Can realize continuous acidification and washing of baicalin.

Description

Continuous acidizing device of scutellaria baicalensis extracting solution

Technical Field

The utility model relates to a scutellaria baicalensis draws technical field, especially relates to a continuous acidizing device of scutellaria baicalensis extract.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

Baicalin is extracted from scutellaria baicalensis slice, and the general process for extracting baicalin comprises the following steps: extracting Scutellariae radix with ethanol or water to obtain extractive solution, refining the extractive solution with acid and alkali to obtain baicalin containing water soluble impurities, and purifying and washing to obtain final baicalin. The existing baicalin extraction process basically adopts a unit operation of intermittent extraction and refining as a main part, has high labor intensity and low production efficiency, and has the problem of insufficient washing of the baicalin in the purification and washing process.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, provide a baical skullcap root extract is acidizing device in succession, carry out countercurrent washing to baicalin through the washing liquid in acidizing washing pipeline, can fully get rid of the water-soluble impurity in the baicalin, solved current industrial production baicalin washing process because the insufficient problem of washing that the band caused is reunited.

For realizing above-mentioned purpose, the utility model provides a continuous acidizing device of baical skullcap root extract, including acidizing washing pipeline and centrifuge, acidizing washing pipeline sets up the reaction liquid entry including the reaction section and the washing section that are linked together in the reaction section, sets up washing liquid entry and product thick liquid export in the washing section, sets up screw conveyer in the acidizing washing pipeline, and screw conveyer is used for transporting the baicalin crystallization that the reaction section produced to product thick liquid exit, and product thick liquid export communicates with centrifuge's entry, and reaction liquid entry and hydrochloric acid storage tank and extract storage tank communicate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a set up acidizing washing pipeline, set up the washing liquid entry on the washing section, set up the reaction liquid entry on the reaction section, let in hydrochloric acid and extract through the reaction liquid entry and react in the reaction section and obtain the baicalin crystallization, let in the washing liquid through the washing liquid entry and wash the baicalin crystallization in to the washing section, the purification to the baicalin crystallization has been realized, product thick liquid export and centrifuge's entry intercommunication, make the baicalin crystal thick liquid that obtains after the washing can get into centrifuge and carry out centrifugal separation, obtain ultimate baicalin, the continuous acidizing washing of baicalin has been realized, and the production efficiency is improved.

2. The utility model discloses set up screw conveyer in acidizing washing pipeline, can transport the baicalin crystallization that the reaction section produced to the washing section and wash, the baicalin crystallization is in half suspension state for wash more abundant, can fully get rid of the water-soluble impurity in the baicalin.

3. The utility model discloses mother liquor export and crystallization entry have been set up on the acidizing washing pipeline, and set up the filter in the mother liquor exit, carry out prefilter to acidizing washing pipeline exhaust mother liquor, set up hydrocyclone separator on the pipeline that mother liquor export and sewage treatment system are connected, with hydrocyclone separator's crystallization export and crystallization entry intercommunication, filter the mother liquor once more through hydrocyclone separator, and will filter out the crystallization of crossing again and reinfusion to acidizing washing pipeline in, the crystallized loss of baicalin has been reduced, the medicinal material extraction rate has been improved.

Additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic view of the structure of the apparatus disclosed in example 1.

Wherein: 11. the system comprises a hydrochloric acid storage tank, 12 an extracting solution storage tank, 21 a hydrochloric acid metering pump, 22 an extracting solution metering pump, 23 a diaphragm pump, 31 an extracting solution heater, 32 a washing water heater, 4 a hydrocyclone separator, 5 an acidification washing pipeline, 51 a reaction section, 52 a washing section, 53 a filter, 54 a pipeline temperature control system, 55 a reaction solution inlet, 56 a washing solution inlet, 57 a product slurry outlet, 58 a mother solution outlet, 59 a crystallization inlet, 6 a centrifuge, 7 a product collecting system, 8 and a waste liquid treatment system.

The specific implementation mode is as follows:

the present invention will be further described with reference to the accompanying drawings and examples.

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

In the present invention, the terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, and are only the terms determined for the convenience of describing the structural relationship of each component or element of the present invention, and are not specific to any component or element of the present invention, and are not to be construed as limiting the present invention.

In the present invention, terms such as "fixedly connected", "connected", and the like are to be understood in a broad sense, and may be fixedly connected, or may be integrally connected or detachably connected; may be directly connected or indirectly connected through an intermediate. The meaning of the above terms in the present invention can be determined according to specific situations by persons skilled in the art, and should not be construed as limiting the present invention.

Example 1

In order to realize continuous acidification and washing of baicalin, the embodiment discloses a continuous acidification device for baical skullcap root extract, as shown in fig. 1, comprising an acidification and washing pipeline 5 and a centrifuge 6, wherein the acidification and washing pipeline 5 comprises a reaction section 51 and a washing section 52 which are communicated, a reaction liquid inlet 55 is arranged on the reaction section 51, a washing liquid inlet 56 and a product slurry outlet 57 are arranged on the washing section 52, a screw conveyor is arranged in the acidification and washing pipeline 5 and used for transporting baicalin crystals generated in the reaction section 51 to the product slurry outlet 57, the product slurry outlet 57 is communicated with an inlet of the centrifuge 6, and the reaction liquid inlet 55 is communicated with a hydrochloric acid storage tank 11 and an extract storage tank 12.

Hydrochloric acid is stored in the hydrochloric acid storage tank 11, a hydrochloric acid metering pump 21 is arranged on a pipeline which is communicated with the reaction liquid inlet 55 of the hydrochloric acid storage tank 11, and the hydrochloric acid stored in the hydrochloric acid storage tank 11 is pumped into the reaction section 51 of the acidification washing pipeline 5 through the hydrochloric acid metering pump 21.

The extracting solution storage tank 12 stores the extracting solution of scutellaria baicalensis, the extracting solution metering pump 22 and the extracting solution heater 31 are arranged on a pipeline communicated with the reaction solution inlet 55 of the extracting solution storage tank 12, the extracting solution of scutellaria baicalensis stored in the extracting solution storage tank 12 is pumped into the reaction section 51 of the acidification washing pipeline 5 through the extracting solution metering pump 22, and the extracting solution input into the reaction section 51 is primarily heated through the extracting solution heater 31.

The baicalin extract and the hydrochloric acid react in the reaction section 51 to generate baicalin crystals, and the baicalin crystals are conveyed to the washing section 52 by the screw conveyor to be washed.

The screw conveyer comprises a motor and an auger, the auger is connected with an output shaft of the motor, when the output shaft of the motor rotates, the auger rotates to drive the baicalin crystal to move, the baicalin crystal is conveyed into the washing section 52 from the reaction section 51, the baicalin crystal slurry obtained after washing is conveyed to a product slurry outlet 57, and the baicalin crystal slurry is discharged from the product slurry outlet 57.

Washing liquid entry 56 and washing liquid conveying line communicate, pass through washing liquid conveying line and let in the washing liquid to washing section 52, and the washing liquid can be the pure water, washes the baicalin crystallization through the washing liquid, and in the washing process, because screw conveyer's drive for the baicalin crystallization is in half suspension state, can fully contact with the detergent, thereby can fully get rid of the water-soluble impurity in the baicalin.

The washing section 52 is provided with a washing liquid inlet 56 and a product pulp outlet 57, the washing liquid inlet 56 and the product pulp outlet 57 are positioned at the same end of the washing section 52, and the washing liquid inlet 56 and the reaction liquid inlet 55 are arranged at two ends of the acidification washing pipeline 5, so that the counter-current washing of the baicalin can be realized, and the water-soluble impurities in the baicalin can be more fully removed.

The washing water heater 32 is arranged on the washing liquid conveying pipeline, and the washing liquid in the washing water heater 32 is heated, so that the temperature of the washing liquid introduced into the acidification washing pipeline 5 does not influence the reaction of the extracting solution and the hydrochloric acid, and the rapid output of baicalin crystals is ensured.

And a pipeline temperature control system 54 is arranged in the acidification washing pipeline 5, the pipeline temperature control system 54 comprises a heating device and a temperature sensor, the heating device is used for heating the mixed liquid in the acidification washing pipeline 5 to ensure the normal running of the reaction, and the temperature sensor is used for monitoring the temperature in the acidification washing pipeline 5.

A mother liquor outlet 58 is arranged on the acidification washing pipeline 5, the mother liquor outlet 58 is positioned at the communication part of the reaction section 51 and the washing section 52, in the washing section 52, the washing liquid carries out reverse washing on baicalin crystals, impurity components in the baicalin crystals are dissolved to form impurity washing liquid, washed baicalin the washing section 52 is obtained, the impurity washing liquid is mixed at the communication part of the reaction section 51 and the washing section 52 to form mother liquor mixed liquid, and the mother liquor mixed liquid is discharged out of the acidification washing pipeline 5 through the mother liquor outlet 58.

The mother liquor outlet 58 is communicated with the waste liquor treatment system 8, and the mother liquor mixed liquor is conveyed to the waste liquor treatment system 8 for treatment.

In order to prevent fine baicalin crystals from being mixed in the mother liquor mixed liquor and being discharged to the waste liquor treatment system 8, the filter 53 is arranged at the mother liquor outlet 58, the mother liquor mixed liquor is filtered through the filter 53, the filtered waste liquor is discharged through the mother liquor outlet 58, the filtered fine baicalin crystals are remained in the acidification washing pipeline 5 and are finally discharged through the product slurry outlet 67.

An inlet of a crystal 59 is arranged on the acidification washing pipeline 5, a hydrocyclone 4 is arranged on a pipeline of a mother liquid outlet 58 communicated with the waste liquid treatment system 8, the mother liquid outlet 58 is communicated with the inlet of the hydrocyclone 4, a liquid outlet of the hydrocyclone 4 is communicated with the waste liquid treatment system 8, a crystal outlet of the hydrocyclone 4 is communicated with the crystal inlet 59 on the acidification washing pipeline 5, and a diaphragm pump 23 is arranged on a pipeline of the crystal outlet of the hydrocyclone 4 communicated with the crystal inlet 59.

And (3) introducing the waste liquid into the hydrocyclone 4 for cyclone separation, discharging the cyclone separated waste liquid into a waste liquid treatment system 8 through a liquid outlet of the hydrocyclone 4, and pumping the cyclone separated baicalin fine crystals into the acidification washing pipeline 5 through a membrane pump 23 from a crystallization outlet of the hydrocyclone 4 through a crystallization inlet 59.

And (3) communicating the product slurry outlet 57 with an inlet of a centrifuge 6, conveying the baicalin crystal slurry into the centrifuge 6 through the inlet of the centrifuge 6, and centrifuging the baicalin crystal slurry by the centrifuge 6 to obtain refined baicalin and waste liquid.

The overflow hole of the centrifuge 6 is communicated with a waste liquid treatment system 8, and the solid residue discharge port of the centrifuge 6 is communicated with a product collection system 7.

The refined baicalin obtained by the centrifuge 6 is discharged into a product collecting system 7 through a solid residue discharge port.

The waste liquid obtained by the centrifuge 6 enters a waste liquid treatment system 8 through an overflow hole for treatment.

Wherein, the centrifuge 6, the hydrocyclone 4, the product collecting system 7 and the waste liquid treatment system 8 can all adopt the existing structures.

The continuous acidification device for the baicalin extracting solution disclosed by the embodiment realizes continuous acidification washing and separation of baicalin, improves the production efficiency, can fully remove water-soluble impurities in the baicalin by countercurrent washing of the baicalin in a semi-suspension state and washing liquid, has high product purity, solves the problem of insufficient washing of the baicalin in the existing industrial production baicalin washing process, reduces the loss of baicalin products in the production process, and improves the extraction rate of medicinal materials.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims (10)

1. The utility model provides a continuous acidizing device of scutellaria baicalensis extract, its characterized in that includes acidizing washing pipeline and centrifuge, and acidizing washing pipeline is including reaction section and the washing section that is linked together, sets up the reaction liquid entry on the reaction section, sets up washing liquid entry and product thick liquid export on the washing section, sets up screw conveyer in the acidizing washing pipeline, and screw conveyer is used for transporting the baicalin crystallization that the reaction section produced to product thick liquid export, and product thick liquid export and centrifuge's entry intercommunication.

2. The apparatus for continuously acidifying radix Scutellariae extract as claimed in claim 1, wherein the reaction inlet is connected to the hydrochloric acid storage tank and the extract storage tank.

3. The apparatus for continuously acidifying radix Scutellariae extract as claimed in claim 1, wherein the washing liquid inlet and the product slurry outlet are located at the same end of the washing section.

4. The apparatus for continuously acidifying an extracting solution of scutellaria baicalensis as claimed in claim 1, wherein the reaction solution inlet and the washing solution inlet are located at both ends of the acidifying washing line.

5. The continuous acidifying device of claim 1, wherein the acidifying washing line has a mother liquor outlet, the connection between the reaction section and the washing section has a mother liquor outlet, and the mother liquor outlet is connected to a waste liquid treatment system.

6. The apparatus for continuously acidifying radix Scutellariae extract as claimed in claim 5, wherein the overflow hole of the centrifuge is connected to a waste liquid treatment system.

7. The apparatus for continuously acidifying radix Scutellariae extract as claimed in claim 5, wherein the mother liquor outlet is located at the connection between the reaction section and the washing section.

8. The continuous acidifying device of claim 5 wherein the crystallization inlet is disposed on the acidifying washing line, the hydrocyclone is disposed on the pipeline for communicating the mother liquor outlet with the waste liquid treatment system, the mother liquor outlet is communicated with the inlet of the hydrocyclone, and the crystallization outlet of the hydrocyclone is communicated with the crystallization inlet.

9. The apparatus of claim 8, wherein the liquid outlet of the hydrocyclone is in communication with a waste liquid treatment system.

10. The apparatus for continuously acidifying an extracting solution of scutellaria baicalensis according to claim 8, wherein a diaphragm pump is provided on a pipeline connecting the crystallization outlet of the hydrocyclone to the crystallization inlet.

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