Pilot scale production device for extracting Chinese wolfberry fruit oil

Abstract

The utility model discloses a pilot scale production device for extracting lycium barbarum fruit oil. The pilot scale production device comprises raw material coarse powder equipment, superfine grinding equipment and fruit oil extraction equipment, the raw material coarse powder equipment comprises a homogenizer, a centrifugal machine and a vacuum freeze drying box, and a discharge port of the homogenizer is connected with the centrifugal machine through a discharge pipeline; the superfine grinding equipment comprises a pulverizator and a cyclone collector, and an air outlet of the pulverizator is connected with the cyclone collector through a pipeline; the fruit oil extraction equipment comprises a liquid storage tank, an ultrasonic extraction tank, a separation tank and a vacuum pump, a first extraction agent outlet is formed in the lower portion of the liquid storage tank and connected with the ultrasonic extraction tank through a pipeline, the lower portion of the ultrasonic extraction tank is connected with the separation tank through a pipeline, and the vacuum pump is connected with the ultrasonic extraction tank and the separation tank through pipelines. And a second extraction agent outlet is formed in the upper part of the separation tank. The Chinese wolfberry fruit oil extraction device solves the problem that dried Chinese wolfberry fruits are difficult to smash, and improves the extraction efficiency of Chinese wolfberry fruit oil and the content of active substances in the Chinese wolfberry fruit oil.

Description

Technical Field

[0001] The utility model relates to the technical field of wolfberry dry fruit extraction, in particular to a pilot production device for extracting wolfberry fruit oil. Background Art

[0002] The pilot production line is a production line used to produce pilot products. Compared with the production line, the scale is smaller, and the volume and processing capacity of the pilot equipment are also smaller. It is mainly used in the process of product development to verify the production process, improve product quality and life, and reduce production costs. The pilot production line can simulate the real production environment, and has the characteristics of reducing risks, improving production efficiency, optimizing product quality, promoting product technology innovation, and reducing production costs. The pilot production line is an important link in the transformation from laboratory to factory in the research and development process, and is an important means in new product development and industrial transformation.

[0003] Lycium barbarum oil is the fat-soluble active part of wolfberry dried fruit extracted from wolfberry dried fruit. It is a new type of plant-derived oil that contains a variety of active substances beneficial to the human body, such as wolfberry pigment, linoleic acid, linolenic acid, oleic acid and other fatty acids. It has significant effects on improving eyesight, preventing macular degeneration, lowering human plasma cholesterol levels, preventing blood lipids and atherosclerosis, and relieving hypertension and coronary heart disease caused by hyperlipidemia.

[0004] At present, in the pilot and large-scale preparation process of extracting wolfberry oil using wolfberry dried fruit as raw material, due to the high sugar content of wolfberry dried fruit, it is difficult to crush and quickly absorbs moisture and clumps after crushing, resulting in low extraction efficiency, low yield of wolfberry oil and low content of active substances. Utility Model Content

[0005] The utility model aims to provide a pilot production device for extracting wolfberry oil, which solves the problem that wolfberry dried fruit is difficult to crush and improves the extraction efficiency of wolfberry oil and the content of active substances in wolfberry oil.

[0006] To achieve the above purpose, the utility model provides the following solutions:

[0007] The utility model provides a pilot production device for extracting wolfberry fruit oil, comprising raw material coarse powder equipment, ultrafine grinding equipment and fruit oil extraction equipment;

[0008] The raw material coarse powder equipment includes a homogenizer, a centrifuge and a vacuum freeze drying box, the discharge port of the homogenizer is connected to the centrifuge through a discharge pipe, the centrifuge is used to dehydrate the wolfberry slurry, and the vacuum freeze drying box is used to freeze-dry the wolfberry wet coarse powder obtained after dehydration by the centrifuge;

[0009] The ultrafine grinding equipment comprises a pulverizer and a cyclone collector, wherein the pulverizer is provided with a feed port, an air inlet and an air outlet, the air inlet is connected to an air intake fan, and the air outlet of the pulverizer is connected to the cyclone collector through a pipeline;

[0010] The fruit oil extraction equipment includes a liquid storage tank, an ultrasonic extraction tank, a separation tank and a first vacuum pump. The lower part of the liquid storage tank is provided with a first extraction agent outlet, and the first extraction agent outlet is connected to the ultrasonic extraction tank through a pipeline. The lower part of the ultrasonic extraction tank is connected to the separation tank through a pipeline. The first vacuum pump is respectively connected to the ultrasonic extraction tank and the separation tank through pipelines. The bottom of the separation tank is provided with a discharge port, and the upper part is provided with a second extraction agent outlet.

[0011] Preferably, the homogenizer is a scraper homogenizer, which includes a tank body, a homogenizing motor, a rotating shaft, a blade, a vertical baffle, a scraper and a filter plate. The upper part of the tank body is provided with an upper cover, and the lower part is provided with a discharge port. The upper part of the side wall of the tank body is provided with a water inlet pipe, and the water inlet pipe is provided with a water inlet valve and a flow meter. The rotating shaft is rotatably connected to the tank body and driven to rotate by the homogenizing motor. Multiple layers of the blades are fixed on the rotating shaft, and multiple vertical baffles are symmetrically fixed on the inner wall of the tank body. The filter plate is arranged in the lower part of the tank body and below each of the blades. The scraper is arranged at the lower part of the rotating shaft, and the lower end of the scraper is in contact with the upper surface of the filter plate. The scraper rotates with the rotating shaft to stir up the material particles gathered on the filter plate for re-crushing.

[0012] Preferably, each layer of the blades is spaced apart along the axial direction of the rotating shaft, and one layer of the blades is fixed every 25° in the circumferential direction; each layer of the blades includes two willow-leaf blades, and the two willow-leaf blades are evenly distributed along the circumference of the rotating shaft.

[0013] Preferably, the ultrafine pulverizing equipment further comprises a bag dust collector, and the upper portion of the cyclone collector is connected to the bag dust collector via a pipeline.

[0014] Preferably, the fruit oil extraction equipment also includes a condenser and a diaphragm compressor, the upper part of the liquid storage tank is connected to the condenser, the condenser is connected to the outlet of the diaphragm compressor, and the second extractant outlet is connected to the inlet of the diaphragm compressor through a pipeline.

[0015] Preferably, a screw pump is provided on the discharge pipeline for pumping the crushed wolfberry slurry into the centrifuge.

[0016] Preferably, 8 probe-type ultrasonic generators are installed at the bottom of the ultrasonic extraction tank, divided into two layers, with 4 probe-type ultrasonic generators in each layer; the 4 probe-type ultrasonic generators in the upper layer are horizontally arranged in a cross diagonal pattern, inserted into the ultrasonic extraction tank and protruding 8 mm from the inner wall of the ultrasonic extraction tank; the 4 probe-type ultrasonic generators in the lower layer are inserted into the ultrasonic extraction tank in a cross diagonal pattern at a horizontal angle of 30° and protrude 5 mm from the inner wall of the ultrasonic extraction tank.

[0017] Preferably, the vacuum freeze drying box is provided with a multi-layer bracket for placing multiple trays; the upper end of the vacuum freeze drying box is connected to a refrigeration compressor, and the bottom is connected to a vacuum condenser and a second vacuum pump in sequence; the vacuum freeze drying box is equipped with a first thermometer, a first pressure gauge and a first observation window.

[0018] Preferably, the separation tank is installed with a second pressure gauge and a second temperature gauge, the ultrasonic extraction tank is installed with a third pressure gauge and a third temperature gauge, and the liquid storage tank is installed with a second observation window and a fourth pressure gauge.

[0019] Preferably, an ultrasonic extraction tank heating layer is provided on the outer side of the ultrasonic extraction tank, and a separation tank heating layer is provided on the outer side of the separation tank.

[0020] Compared with the prior art, the utility model has achieved the following technical effects:

[0021] The utility model can remove monosaccharide and oligosaccharide components in wolfberry dried fruit by raw material coarse powder equipment to obtain coarse powder, and then ultrafine grind by ultrafine grinding equipment to obtain ultrafine powder, which not only solves the problem that wolfberry dried fruit is difficult to grind, but also increases the specific surface area of ​​wolfberry powder; freeze drying by vacuum freeze drying box can prevent the active ingredients in wolfberry fruit from being destroyed, and ultrasonic subcritical combined extraction in fruit oil extraction equipment and other common factors can improve the permeability and solubility of fat-soluble active ingredients in wolfberry dried fruit, thereby improving the yield of wolfberry fruit oil and the content of active substances. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the scraper homogenizer and the horizontal filter cloth centrifuge in the utility model;

[0024] Figure 2It is a top view structural diagram of the blade and the rotating shaft in the scraper homogenizer of the utility model;

[0025] Figure 3 It is a schematic diagram of the structure of the vacuum freeze drying box in the utility model;

[0026] Figure 4 It is a structural schematic diagram of the ultrafine grinding equipment in the utility model;

[0027] Figure 5 It is a structural schematic diagram of the fruit oil extraction equipment in the utility model.

[0028] In the figure: 1-homogenizer, 2-centrifuge, 3-vacuum freeze drying box, 101-tank, 102-homogenizer motor, 103-rotating shaft, 104-blade, 105-vertical baffle, 106-scraper, 107-filter plate, 108-homogenizer cover, 109-homogenizer discharge port, 110-water inlet pipe, 111-homogenizer water inlet valve, 112-homogenizer flowmeter, 113-homogenizer discharge pipe, 114-homogenizer discharge valve, 115-screw pump, 201-centrifuge inlet Feed pipe, 202-centrifuge cover, 203-centrifugal chamber, 204-filter cloth, 205-centrifugal motor, 206-drain port, 301-tray, 302-refrigeration compressor, 303-vacuum condenser, 304-second vacuum pump, 305-first thermometer, 306-first pressure gauge, 307-first observation window, 401-crusher, 402-feed port, 403-air inlet, 404-inlet fan, 405-air outlet, 406-crushing motor, 407-fifth pressure force gauge, 408-crushing outlet valve, 409-feeding valve, 410-cyclone collector, 411-bag dust collector, 412-induced draft fan, 501-liquid storage tank, 502-first extractant outlet, 503-second observation window, 504-fourth pressure gauge, 505-ultrasonic extraction tank, 506-probe type ultrasonic generator, 507-first gas valve, 508-first liquid valve, 509-second liquid valve, 510-third pressure gauge, 511-third temperature gauge, 512- Separation tank, 513-discharge port, 514-second extractant outlet, 515-second gas valve, 516-discharge valve, 517-second thermometer, 518-second pressure gauge, 519-extractant valve, 520-first vacuum pump, 521-diaphragm compressor, 522-condenser, 523-third liquid valve, 524-first balancing valve, 525-second balancing valve, 526-ultrasonic extraction tank heating layer, 527-separation tank heating layer, 528-ultrasonic extraction tank cover. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] The utility model aims to provide a pilot production device for extracting wolfberry oil, which solves the problem that wolfberry dried fruit is difficult to crush and improves the extraction efficiency of wolfberry oil and the content of active substances in wolfberry oil.

[0031] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0032] like Figure 1-Figure 5 As shown, this embodiment provides a pilot production device for extracting wolfberry fruit oil, including a raw material coarse powder device, an ultrafine grinding device and a fruit oil extraction device;

[0033] The raw material coarse powder equipment includes a homogenizer 1, a centrifuge 2 and a vacuum freeze drying box 3. The homogenizer discharge port 109 is connected to the centrifuge 2 through the homogenizer discharge pipeline 113. The centrifuge 2 is used to dehydrate the wolfberry pulp. The vacuum freeze drying box 3 is used to freeze-dry the wolfberry wet coarse powder obtained after dehydration by the centrifuge 2;

[0034] The ultrafine grinding equipment includes a pulverizer 401, a cyclone collector 410 and a bag dust collector 411. The pulverizer 401 is provided with a feed port 402, an air inlet 403 and an air outlet 405. The air inlet 403 is connected to an air intake fan 404. The air outlet 405 of the pulverizer 401 is connected to the cyclone collector 410 through a pipeline. The upper part of the cyclone collector 410 is connected to the bag dust collector 411 through a pipeline.

[0035] The fruit oil extraction equipment includes a liquid storage tank 501, an ultrasonic extraction tank 505, a separation tank 512, a first vacuum pump 520, a condenser 522 and a diaphragm compressor 521. The lower part of the liquid storage tank 501 is provided with a first extractant outlet 502, the first extractant outlet 502 is connected to the ultrasonic extraction tank 505 through a pipeline, the lower part of the ultrasonic extraction tank 505 is connected to the separation tank 512 through a pipeline, the first vacuum pump 520 is respectively connected to the ultrasonic extraction tank 505 and the separation tank 512 through pipelines, the bottom of the separation tank 512 is provided with a discharge port 513, and the upper part is provided with a second extractant outlet 514, the upper part of the liquid storage tank 501 is connected with the condenser 522, the condenser 522 is connected to the outlet of the diaphragm compressor 521, and the second extractant outlet 514 is connected to the inlet of the diaphragm compressor 521 through a pipeline.

[0036] The homogenizer 1 is a scraper homogenizer, which includes a tank body 101, a homogenizing motor 102, a rotating shaft 103, a blade 104, a vertical baffle 105, a scraper 106 and a filter plate 107. The upper part of the tank body 101 is provided with a homogenizer cover 108, the lower part is provided with a homogenizer discharge port 109, the upper part of the side wall of the tank body 101 is provided with a water inlet pipe 110, the water inlet pipe 110 is provided with a homogenizer water inlet valve 111 and a homogenizer flowmeter 112, and the rotating shaft 103 is rotatably connected to the tank body 1 01 and driven to rotate by a homogenizing motor 102, a plurality of blades 104 are fixed on the rotating shaft 103, a plurality of vertical baffles 105 are symmetrically fixed on the inner wall of the tank body 101, a filter plate 107 is arranged at the lower part of the tank body 101 and below each blade 104, a scraper 106 is arranged at the lower part of the rotating shaft 103, the lower end of the scraper 106 is in contact with the upper surface of the filter plate 107, and the scraper 106 rotates with the rotating shaft 103 to stir up the material particles gathered on the filter plate 107 for re-crushing. Each layer of blades 104 is arranged at intervals along the axial direction of the rotating shaft 103, and a layer of blades 104 is fixed every 25° in the circumferential direction; each layer of blades 104 includes two willow-leaf blades, which are evenly distributed along the circumference of the rotating shaft 103, and one side of the blade curvature is consistent with the rotation direction of the rotating shaft 103. The speed of the homogenizing motor 102 is 500-10000r / min; there are 3 pairs of 6 vertical baffles 105, which are symmetrically fixed on the inner wall of the tank 101 with the rotating shaft 103 as the center, and are used to form vortices with the rotating wolfberry pulp to increase the suspension and crushing effect; there are 2 scrapers 106, which are symmetrically fixed on the rotating shaft 103 with the rotating shaft 103 as the center and rotate with the rotating shaft 103, and are used to stir up the material particles gathered on the filter plate 107 for re-crushing, prevent large particles from clogging the filter plate, and enhance the filtering capacity of the filter plate 107. The filter plate 107 can be replaced with filter plates of different apertures to control the homogenization of wolfberry particles of different sizes.

[0037] A screw pump 115 is provided on the homogenizer discharge pipeline 113 , and the screw pump 115 connects the homogenizer discharge pipeline 113 and the centrifuge feed pipeline 201 , and is used to pump the crushed wolfberry homogenate into the centrifugal cavity 203 in the centrifuge 2 .

[0038] The centrifuge 2 can be a horizontal filter cloth centrifuge. The filter cloth 204 in the horizontal filter cloth centrifuge can be replaced with filter cloths of different pore sizes. The waste liquid is discharged from the drain port 206. The centrifugal motor 205 rotates at a speed of 1000 to 15000 r / min, driving the centrifugal chamber 203 to rotate together. The centrifuge cover 202 can be opened to replace the filter cloth 204 and take out the centrifuged material.

[0039] A multi-layer bracket is provided in the vacuum freeze drying box 3 for placing multiple trays 301; the upper end of the vacuum freeze drying box 3 is connected to a refrigeration compressor 302, and the temperature in the box is adjusted by the refrigeration compressor 302, and the temperature range is -60°C to 4°C; the bottom of the vacuum freeze drying box 3 is connected in sequence to a vacuum condenser 303 and a second vacuum pump 304, and the second vacuum pump 304 can pump the internal pressure of the vacuum freeze drying box 3 to 0-30Pa, and the vacuum condenser 303 condenses and discharges the moisture in the air in the vacuum freeze drying box 3 to prevent water vapor from entering the second vacuum pump 304 and causing damage to the second vacuum pump 304; the vacuum freeze drying box 3 is equipped with a first thermometer 305, a first pressure gauge 306 and a first observation window 307, which can read the temperature, pressure and material drying condition in the vacuum freeze drying box 3.

[0040] The pulverizer 401 is driven by a pulverizing motor 406, and the pulverizing speed is 5000-30000r / min; the air intake fan 404 blows air into the pulverizer 401 to cool the material, and the air intake pressure is 1-5Mpa, which is read by the fifth pressure gauge 407 at the air inlet 403 of the pulverizer 401; a pulverizing outlet valve 408 is installed on the air outlet pipe of the pulverizer 401 to control the outflow of fine powder; the bottom of the cyclone collector 410 is used to collect ultra-fine pulverized materials; the bag dust collector 411 is used to recover dust, and the upper part is connected to an induced draft fan 412 to discharge exhaust gas to prevent air pollution.

[0041] The liquid storage tank 501 is a pressure vessel for storing the extractant and storing the recovered extractant. The lower part of the liquid storage tank 501 is the first extractant outlet 502, which is connected to the ultrasonic extraction tank 505. The liquid storage tank 501 is equipped with a second observation window 503 and a fourth pressure gauge 504 for observing the liquid storage and pressure conditions. The ultrasonic extraction tank 505 is a pressure vessel, and 8 probe-type ultrasonic generators 506 are installed at the bottom of the ultrasonic extraction tank, with an ultrasonic range of 0 to 60 kHz; it is divided into two layers, with 4 probe-type ultrasonic generators 506 in each layer; the 4 probe-type ultrasonic generators 506 in the upper layer are horizontally arranged in a cross diagonal manner, inserted into the ultrasonic extraction tank and protruding 8 mm from the inner wall of the ultrasonic extraction tank, and the 4 probe-type ultrasonic generators 506 in the lower layer are inserted into the ultrasonic extraction tank 505 in a cross diagonal manner at a horizontal angle of 30°, and protruding 5 mm from the inner wall of the ultrasonic extraction tank, and 1 cm below the lowest liquid level; through ultrasonic and subcritical combined extraction, the ultrasonic superposition effect generated by the arrangement mode and angle setting of the ultrasonic generator probes can increase the permeability and solubility of the fat-soluble active ingredients in the wolfberry dry fruit, reduce the extraction time, and improve the extraction rate of wolfberry oil; The upper cover 528 of the ultrasonic extraction tank can be opened to put the material in; the outer side of the ultrasonic extraction tank 505 is provided with an ultrasonic extraction tank heating layer 526, which can heat the extraction process, and the temperature range is 30-70°C; the upper vacuum pipeline of the ultrasonic extraction tank 505 is connected to the first vacuum pump 520, and the opening and closing is controlled by the first gas valve 507; the upper liquid pipeline of the ultrasonic extraction tank 505 is connected to the liquid storage tank 501, and the opening and closing is controlled by the first liquid valve 508; the lower liquid pipeline of the ultrasonic extraction tank 505 is connected to the separation tank 512, and the opening and closing is controlled by the second liquid valve 509; the ultrasonic extraction tank 505 is equipped with a third pressure gauge 510 and a third thermometer 511 to read the pressure and temperature in the ultrasonic extraction tank 505, and the ultrasonic extraction tank 505 is equipped with an exhaust pipe, and the exhaust pipe is equipped with a first balancing valve 524. The first vacuum pump 520 is connected to the ultrasonic extraction tank 505 and the separation tank 512 through a vacuum pipeline, and is opened and closed by the first gas valve 507 and the second gas valve 515 respectively, so as to evacuate the ultrasonic extraction tank 505 and the separation tank 512 .The separation tank 512 is a pressure vessel, which is connected to the ultrasonic extraction tank 505 through a liquid pipeline, and the extract in the ultrasonic extraction tank 505 is transferred to the separation tank 512; a separation tank heating layer 527 is provided on the outer side of the separation tank 512, which can heat the separation process in the separation tank 512, and the temperature range is 30-70°C; a second pressure gauge 518 and a second thermometer 517 are installed on the separation tank 512 to read the pressure and temperature in the separation tank 512, and an exhaust pipe is installed on the separation tank 512, and a second balancing valve 525 is installed on the exhaust pipe; the gasified extractant in the separation tank 512 enters the diaphragm compressor 521 through the gas pipeline connected to the second extractant outlet 514, and the pipeline is controlled by the extractant valve 519 on the gas pipeline. The extracted wolfberry fruit oil passes through the lower discharge port 513 of the separation tank 512 and is collected after the discharge valve 516 is opened. The vaporized extractant in the separation tank 512 enters the diaphragm compressor 521 through the gas pipeline, is compressed into a liquid state, and then is cooled by the condenser 522 and returned to the liquid storage tank 501.

[0042] Among them, the equipment, pipelines and valves in this pilot production device are all made of 304 stainless steel.

[0043] The specific process of extracting wolfberry oil using this pilot production device is as follows:

[0044] (1) Raw material powder

[0045] Open the upper cover 108 of the homogenizer, put a certain mass of dried wolfberry fruit into the scraper homogenizer, open the water inlet valve 111 of the homogenizer, and add deionized water in proportion according to the reading of the homogenizer flowmeter 112; start the scraper homogenizer, set the speed of the crushing blade, and after running for a period of time, open the homogenizer discharge valve 114 below the scraper homogenizer, start the screw pump 115 to pump the wolfberry pulp into the filter cloth 204 of the centrifugal chamber of the horizontal filter cloth centrifuge; start the horizontal filter cloth centrifuge, set the centrifugal speed, and after running for a period of time, discharge the filtrate from the sewage outlet 206, open the upper cover 202 of the centrifuge, take out the wet coarse wolfberry powder from the filter cloth 204, and spread it on the tray 301; pre-open the refrigeration compressor 302 of the vacuum freeze drying box 3 to the required temperature, put the tray 301 carrying the wet coarse wolfberry powder into the vacuum freeze drying box 3, start the second vacuum pump 304 to the required pressure, freeze dry for a period of time, and obtain the coarse wolfberry powder.

[0046] (2) Ultrafine grinding:

[0047] Pour the freeze-dried coarse powder into the airflow ultrafine pulverizer (pulverizer 401) from the feed port 402, and close the feed valve 409; turn on the air intake fan 404 of the airflow ultrafine pulverizer, adjust the gas pressure, turn on the pulverizing motor 406, adjust to the required speed, pulverize for a period of time, open the induced draft fan 412 and the pulverizing outlet valve 408 of the airflow ultrafine pulverizer; the exhaust gas is discharged after passing through the bag dust collector 411, and the wolfberry ultrafine powder is collected at the bottom of the cyclone collector 410.

[0048] (3) Fruit oil extraction:

[0049] Put the wolfberry ultrafine powder into a filter bag, place it in the closed ultrasonic extraction tank 505 of the fruit oil extraction equipment, turn on the first vacuum pump 520 to evacuate the ultrasonic extraction tank 505 and the separation tank 512 to a certain negative pressure; close the first vacuum pump 520 and the gas valve on the pipeline connecting the first vacuum pump 520 with the ultrasonic extraction tank 505 and the separation tank 512, open the liquid valve at the liquid storage tank outlet (the first liquid valve 508), put the extractant into the ultrasonic extraction tank 505 to the required liquid level; turn on the heating switch to set the temperature of the extraction liquid, turn on the ultrasonic generator switch, adjust the ultrasonic frequency to the required frequency, and extract. Take a period of time; open the second liquid valve 509 between the ultrasonic extraction tank 505 and the separation tank 512, and the extract flows into the separation tank 512 under the action of the pressure difference, then close the second liquid valve 509, turn on the separation tank heating switch to the required temperature, turn on the diaphragm compressor switch, and the vaporized extractant is compressed to a liquid state through the diaphragm compressor 521, and returns to the liquid storage tank 501 through the condenser 522 for standby use. A third liquid valve 523 is provided on the pipeline connecting the condenser 522 and the liquid storage tank 501 to control the on-off of the pipeline; open the discharge valve 516 at the bottom of the separation tank 512 to collect wolfberry oil.

[0050] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A pilot production device for extracting wolfberry oil, characterized in that: Including raw material coarse powder equipment, ultrafine grinding equipment and fruit oil extraction equipment; The raw material coarse powder equipment includes a homogenizer, a centrifuge and a vacuum freeze drying box, the discharge port of the homogenizer is connected to the centrifuge through a discharge pipe, the centrifuge is used to dehydrate the wolfberry slurry, and the vacuum freeze drying box is used to freeze-dry the wolfberry wet coarse powder obtained after dehydration by the centrifuge; The ultrafine grinding equipment comprises a pulverizer and a cyclone collector, wherein the pulverizer is provided with a feed port, an air inlet and an air outlet, the air inlet is connected to an air intake fan, and the air outlet of the pulverizer is connected to the cyclone collector through a pipeline; The fruit oil extraction equipment includes a liquid storage tank, an ultrasonic extraction tank, a separation tank and a first vacuum pump. The lower part of the liquid storage tank is provided with a first extraction agent outlet, and the first extraction agent outlet is connected to the ultrasonic extraction tank through a pipeline. The lower part of the ultrasonic extraction tank is connected to the separation tank through a pipeline. The first vacuum pump is respectively connected to the ultrasonic extraction tank and the separation tank through pipelines. The bottom of the separation tank is provided with a discharge port, and the upper part is provided with a second extraction agent outlet.

2. The pilot production device for extracting wolfberry oil according to claim 1, characterized in that: The homogenizer is a scraper homogenizer, which includes a tank body, a homogenizing motor, a rotating shaft, a blade, a vertical baffle, a scraper and a filter plate. The upper part of the tank body is provided with an upper cover, and the lower part is provided with a discharge port. The upper part of the side wall of the tank body is provided with a water inlet pipe, and the water inlet pipe is provided with a water inlet valve and a flow meter. The rotating shaft is rotatably connected to the tank body and driven to rotate by the homogenizing motor. Multiple layers of the blades are fixed on the rotating shaft, and multiple vertical baffles are symmetrically fixed on the inner wall of the tank body. The filter plate is arranged in the lower part of the tank body and below each of the blades. The scraper is arranged at the lower part of the rotating shaft, and the lower end of the scraper is in contact with the upper surface of the filter plate. The scraper rotates with the rotating shaft to stir up the material particles gathered on the filter plate for re-crushing.

3. The pilot production device for extracting wolfberry oil according to claim 2, characterized in that: Each layer of the blades is spaced apart along the axial direction of the rotating shaft, and one layer of the blades is fixed every 25° in the circumferential direction; each layer of the blades includes two willow-leaf blades, and the two willow-leaf blades are evenly distributed along the circumference of the rotating shaft.

4. The pilot production device for extracting wolfberry oil according to claim 1, characterized in that: The ultrafine grinding equipment also includes a bag dust collector, and the upper part of the cyclone collector is connected to the bag dust collector through a pipeline.

5. The pilot production device for extracting wolfberry oil according to claim 1, characterized in that: The fruit oil extraction equipment also includes a condenser and a diaphragm compressor. The upper part of the liquid storage tank is connected to the condenser, the condenser is connected to the outlet of the diaphragm compressor, and the second extractant outlet is connected to the inlet of the diaphragm compressor through a pipeline.

6. The pilot production device for extracting wolfberry oil according to claim 2, characterized in that: The discharge pipeline is provided with a screw pump for pumping the crushed wolfberry slurry into the centrifuge.

7. The pilot production device for extracting wolfberry oil according to claim 1, characterized in that: Eight probe-type ultrasonic generators are installed at the bottom of the ultrasonic extraction tank, which are divided into two layers, with four probe-type ultrasonic generators in each layer; the four probe-type ultrasonic generators in the upper layer are arranged horizontally in a cross diagonal pattern, inserted into the ultrasonic extraction tank and protruding 8 mm from the inner wall of the ultrasonic extraction tank; the four probe-type ultrasonic generators in the lower layer are inserted into the ultrasonic extraction tank in a cross diagonal pattern at a horizontal angle of 30° and protruding 5 mm from the inner wall of the ultrasonic extraction tank.

8. The pilot production device for extracting wolfberry oil according to claim 1, characterized in that: The vacuum freeze drying box is provided with a multi-layer bracket for placing multiple trays; the upper end of the vacuum freeze drying box is connected to a refrigeration compressor, and the bottom is sequentially connected to a vacuum condenser and a second vacuum pump; the vacuum freeze drying box is equipped with a first temperature gauge, a first pressure gauge and a first observation window.

9. The pilot production device for extracting wolfberry oil according to claim 1, characterized in that: The separation tank is provided with a second pressure gauge and a second temperature gauge, the ultrasonic extraction tank is provided with a third pressure gauge and a third temperature gauge, and the liquid storage tank is provided with a second observation window and a fourth pressure gauge.

10. The pilot production device for extracting wolfberry oil according to claim 1, characterized in that: An ultrasonic extraction tank heating layer is disposed on the outer side of the ultrasonic extraction tank, and a separation tank heating layer is disposed on the outer side of the separation tank.

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