CN222574596U - A pilot production device for extracting wolfberry oil - Google Patents

Abstract

The utility model discloses a pilot production device for extracting medlar fruit oil, which comprises raw material coarse powder equipment, superfine grinding equipment and fruit oil extraction equipment, wherein the raw material coarse powder equipment comprises a refiner, a centrifuge and a vacuum freeze drying box, a discharge port of the refiner is connected with the centrifuge through a discharge pipeline, the superfine grinding equipment comprises a grinder and a cyclone collector, an air outlet of the grinder 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 extractant outlet is arranged at the lower part of the liquid storage tank, the first extractant outlet is connected with the ultrasonic extraction tank through a pipeline, the lower part of the ultrasonic extraction tank is connected with the separation tank through a pipeline, the vacuum pump is connected with the ultrasonic extraction tank and the separation tank through pipelines, a discharge port is arranged at the bottom of the separation tank, and a second extractant outlet is arranged at the upper part of the separation tank. The utility model solves the problem that the dried medlar fruits are difficult to crush, and improves the extraction efficiency of medlar fruit oil and the content of active substances in medlar fruit oil.

Description

Pilot scale production device for extracting medlar fruit oil

Technical Field

The utility model relates to the technical field of extraction of dried fruits of Chinese wolfberry, in particular to a pilot scale production device for extracting Chinese wolfberry fruit oil.

Background

The pilot-scale production line is a production line for producing pilot-scale products, has smaller scale compared with the production line, has smaller volume and processing capacity of pilot-scale equipment, and is mainly applied to the aspects of verifying production process, improving product quality and service life, reducing production cost and the like in the product research and development process. The pilot-scale production line can simulate the real production environment, has the characteristics of reducing risk, improving production efficiency, optimizing product quality, promoting product technical innovation, reducing production cost and the like, is used for practical tests and production before production, is an important link for conversion from a laboratory to a factory in the research and development process, and is an important means in new product research and development and industry transformation.

The medlar fruit oil is a novel vegetable-derived oil which is prepared by taking medlar dry fruits as raw materials for extraction, contains various active substances beneficial to human bodies, such as medlar pigment, linoleic acid, linolenic acid, oleic acid and other fatty acids, has obvious effects of improving eyesight and protecting eyes, preventing eyeground macular degeneration, reducing the content of plasma cholesterol in human bodies, preventing blood fat and atherosclerosis, relieving hypertension, coronary heart disease and the like caused by hyperlipidemia.

At present, in the pilot plant and large-scale preparation process for extracting medlar fruit oil by taking medlar dry fruits as raw materials, the medlar dry fruits have the problems of difficult pulverization, quick moisture absorption and agglomeration after pulverization, low extraction efficiency, low yield of the obtained medlar fruit oil and low content of active substances due to high sugar content of medlar dry fruits.

Disclosure of utility model

The utility model aims to provide a pilot scale production device for extracting medlar fruit oil, which solves the problem that medlar dry fruits are difficult to crush and improves the extraction efficiency of medlar fruit oil and the content of active substances in medlar fruit oil.

In order to achieve the above object, the present utility model provides the following solutions:

The utility model provides a pilot-scale production device for extracting medlar fruit oil, which comprises raw material coarse powder equipment, superfine grinding equipment and fruit oil extraction equipment;

The raw material coarse powder equipment comprises a refiner, a centrifugal machine and a vacuum freeze drying box, wherein a discharge port of the refiner is connected with the centrifugal machine through a discharge pipeline, the centrifugal machine is used for dehydrating the medlar pulp, and the vacuum freeze drying box is used for freeze drying medlar wet coarse powder obtained after the centrifugal machine is dehydrated;

The superfine grinding equipment comprises a grinder and a cyclone collector, wherein the grinder is provided with a feed inlet, an air inlet and an air outlet, the air inlet is connected with an air inlet fan, and the air outlet of the grinder 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 first vacuum pump, wherein a first extractant outlet is formed in the lower portion of the liquid storage tank, the first extractant outlet is 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, the first vacuum pump is connected with the ultrasonic extraction tank and the separation tank through pipelines respectively, a discharge hole is formed in the bottom of the separation tank, and a second extractant outlet is formed in the upper portion of the separation tank.

Preferably, the refiner is a scraper refiner, the scraper refiner comprises a tank body, a refining motor, a rotating shaft, blades, vertical baffles, scrapers and a filter plate, an upper cover is arranged on the upper portion of the tank body, a discharging port is arranged on the lower portion of the tank body, a water inlet pipeline is arranged on the upper portion of the side wall of the tank body, a water inlet valve and a flowmeter are arranged on the water inlet pipeline, the rotating shaft is rotationally connected in the tank body and driven to rotate by the refining motor, a plurality of layers of the blades are fixedly arranged on the rotating shaft, a plurality of vertical baffles are symmetrically fixed on the inner wall of the tank body, the filter plate is arranged on the lower portion of the tank body and located below each of the blades, the scrapers are arranged on the lower portion of the rotating shaft, the lower ends of the scrapers are in contact with the upper surface of the filter plate, and the scrapers rotate along with the rotating shaft to stir material particles gathered on the filter plate to be crushed again.

Preferably, each layer of blades are axially arranged at intervals along the rotating shaft, and are fixed at intervals of 25 degrees in the circumferential direction, each layer of blades comprises two salix leaves, and the two salix leaves are uniformly distributed along the circumferential direction of the rotating shaft.

Preferably, the superfine grinding device further comprises a bag type dust collector, and the upper part of the cyclone collector is connected with the bag type dust collector through a pipeline.

Preferably, the fruit oil extraction device further comprises a condenser and a diaphragm compressor, wherein the upper part of the liquid storage tank is connected with the condenser, the condenser is connected with an outlet of the diaphragm compressor, and the second extractant outlet is connected with an inlet of the diaphragm compressor through a pipeline.

Preferably, a screw pump is arranged on the discharging pipeline and used for pumping crushed medlar homogenate into the centrifugal machine.

Preferably, the bottom of the ultrasonic extraction tank is provided with 8 probe-type ultrasonic generators which are divided into an upper layer and a lower layer, 4 probe-type ultrasonic generators are horizontally arranged at the opposite angles of a cross, the upper layer 4 probe-type ultrasonic generators are inserted into the ultrasonic extraction tank and exceed the inner wall of the ultrasonic extraction tank by 8mm, and the lower layer 4 probe-type ultrasonic generators are inserted into the ultrasonic extraction tank at the opposite angles of the cross and are obliquely inserted into the ultrasonic extraction tank by 30 degrees at the horizontal included angle and exceed the inner wall of the ultrasonic extraction tank by 5mm.

The vacuum freeze drying box is provided with a plurality of trays, the upper end of the vacuum freeze drying box is connected with a refrigerating compressor, the bottom of the vacuum freeze drying box is sequentially connected with a vacuum condenser and a second vacuum pump, and the vacuum freeze drying box is provided with a first thermometer, a first pressure gauge and a first observation window.

Preferably, the second pressure gauge and the second thermometer are installed on the separating tank, the third pressure gauge and the third thermometer are installed on the ultrasonic extraction tank, and the second observation window and the fourth pressure gauge are installed on the liquid storage tank.

Preferably, an ultrasonic extraction tank heating layer is arranged on the outer side of the ultrasonic extraction tank, and a separation tank heating layer is arranged on the outer side of the separation tank.

Compared with the prior art, the utility model has the following technical effects:

The utility model can remove monosaccharide and oligosaccharide components in dried medlar by using raw material coarse powder equipment to obtain coarse powder, and then superfine grinding is carried out by using superfine grinding equipment to obtain superfine powder, thus solving the problem that dried medlar is difficult to be ground, increasing the specific surface area of medlar powder, preventing active components in the medlar from being damaged by freeze drying by using a vacuum freeze drying box, improving the permeability and dissolution capability of fat-soluble active components in the dried medlar by using common factors such as ultrasonic subcritical combined extraction in fruit oil extraction equipment, and improving the yield and active substance content of medlar oil.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the scraper blade refiner and horizontal filter cloth centrifuge of the present utility model;

FIG. 2 is a schematic top view of the blade and shaft of the blade refiner of the present utility model;

FIG. 3 is a schematic view of the structure of the vacuum freeze drying oven according to the present utility model;

FIG. 4 is a schematic structural view of the superfine pulverizing apparatus according to the present utility model;

fig. 5 is a schematic structural view of the fruit oil extraction apparatus of the present utility model.

In the figure: 1-refiner, 2-centrifuge, 3-vacuum freeze-dryer, 101-tank, 102-homogenizing motor, 103-spindle, 104-blade, 105-vertical baffle, 106-scraper, 107-filter plate, 108-refiner upper cover, 109-refiner discharge port, 110-water inlet pipe, 111-refiner water inlet valve, 112-refiner flow meter, 113-refiner discharge pipe, 114-refiner discharge valve, 115-screw pump, 201-centrifuge feed pipe, 202-centrifuge upper cover, 203-centrifuge cavity, 204-filter cloth, 205-centrifuge motor, 206-drain, 301-tray, 302-refrigeration compressor, 303-vacuum condenser, 304-second vacuum pump, 305-first thermometer 306-first pressure gauge, 307-first observation window, 401-pulverizer, 402-feed inlet, 403-air inlet, 404-air inlet fan, 405-air outlet, 406-pulverizing motor, 407-fifth pressure gauge, 408-pulverizing outlet valve, 409-feed valve, 410-cyclone collector, 411-bag 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-separator 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 balance valve, 525-second balance valve, 526-ultrasonic extraction tank heating layer, 527-separator tank heating layer, 528-ultrasonic extraction tank upper cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model aims to provide a pilot scale production device for extracting medlar fruit oil, which solves the problem that medlar dry fruits are difficult to crush and improves the extraction efficiency of medlar fruit oil and the content of active substances in medlar fruit oil.

In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.

As shown in fig. 1-5, the embodiment provides a pilot production device for extracting medlar fruit oil, which comprises raw material coarse powder equipment, superfine grinding equipment and fruit oil extraction equipment;

The raw material coarse powder equipment comprises a refiner 1, a centrifugal machine 2 and a vacuum freeze drying box 3, wherein a refiner discharge port 109 is connected with the centrifugal machine 2 through a refiner discharge pipeline 113, the centrifugal machine 2 is used for dehydrating medlar pulp, and the vacuum freeze drying box 3 is used for freeze drying medlar wet coarse powder obtained after the centrifugal machine 2 is dehydrated;

The superfine grinding equipment comprises a grinder 401, a cyclone collector 410 and a bag type dust collector 411, wherein the grinder 401 is provided with a feed inlet 402, an air inlet 403 and an air outlet 405, the air inlet 403 is connected with an air inlet fan 404, the air outlet 405 of the grinder 401 is connected with the cyclone collector 410 through a pipeline, and the upper part of the cyclone collector 410 is connected with the bag type dust collector 411 through a pipeline;

The fruit oil extraction equipment comprises 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, wherein a first extractant outlet 502 is formed in the lower portion of the liquid storage tank 501, the first extractant outlet 502 is connected with the ultrasonic extraction tank 505 through a pipeline, the lower portion of the ultrasonic extraction tank 505 is connected with the separation tank 512 through a pipeline, the first vacuum pump 520 is respectively connected with the ultrasonic extraction tank 505 and the separation tank 512 through a pipeline, a discharge hole 513 is formed in the bottom of the separation tank 512, a second extractant outlet 514 is formed in the upper portion of the separation tank 512, the condenser 522 is connected with the upper portion of the liquid storage tank 501, the condenser 522 is connected with the outlet of the diaphragm compressor 521, and the second extractant outlet 514 is connected with the inlet of the diaphragm compressor 521 through a pipeline.

The refiner 1 is a scraper refiner, the scraper refiner comprises a tank 101, a refining motor 102, a rotating shaft 103, blades 104, vertical baffles 105, scrapers 106 and filter plates 107, a refiner upper cover 108 is arranged at the upper part of the tank 101, a refiner discharge outlet 109 is arranged at the lower part, a water inlet pipeline 110 is arranged at the upper part of the side wall of the tank 101, a refiner water inlet valve 111 and a refiner flowmeter 112 are arranged on the water inlet pipeline 110, the rotating shaft 103 is rotationally connected in the tank 101 and driven to rotate by the refining motor 102, a plurality of layers of blades 104 are fixedly arranged on the rotating shaft 103, a plurality of vertical baffles 105 are symmetrically fixed on the inner wall of the tank 101, the filter plates 107 are arranged at the lower part of the tank 101 and are positioned below the blades 104, the scrapers 106 are arranged at the lower part of the rotating shaft 103, the lower ends of the scrapers 106 are contacted with the upper surfaces of the filter plates 107, and the scrapers 106 rotate along with the rotating shaft 103 to stir material particles gathered on the scrapers 107 so as to be crushed again. Each layer of blades 104 is axially arranged along the rotating shaft 103 at intervals, one layer of blades 104 is fixed every 25 degrees in the circumferential direction, each layer of blades 104 comprises two salix blades, the two salix blades are uniformly distributed along the circumferential direction of the rotating shaft 103, and the radian side of the blade is consistent with the rotating direction of the rotating shaft 103. The rotation speed of the homogenizing motor 102 is 500-10000 r/min, 3 pairs of vertical baffles 105 are symmetrically fixed on the inner wall of the tank body 101 by taking the rotating shaft 103 as a center, the vortex is formed by the rotating medlar pulp to increase the suspension and crushing effect, 2 scraping plates 106 are symmetrically fixed on the rotating shaft 103 by taking the rotating shaft 103 as a center and rotate along with the rotating shaft 103, and are used for stirring up the material particles gathered on the filter plate 107 to crush again, so that large particle materials are prevented from blocking the empty filter plate, and the filtering capacity of the filter plate 107 is enhanced. The filter plate 107 may be replaced with a filter plate of a different pore size for controlling the homogenization of medlar of different size particles.

The refiner discharge pipe 113 is provided with a screw pump 115, and the screw pump 115 is connected with the refiner discharge pipe 113 and a centrifuge feed pipe 201 and is used for pumping crushed medlar homogenate into a centrifugal cavity 203 in the centrifuge 2.

The centrifuge 2 can be a horizontal filter cloth centrifuge, filter cloth 204 in the horizontal filter cloth centrifuge can be replaced with filter cloth with different apertures, waste liquid is discharged from a sewage outlet 206, a centrifugal motor 205 is driven to rotate at a speed of 1000-15000 r/min, a centrifugal cavity 203 is driven to rotate together, and a centrifuge upper cover 202 can be opened to replace the filter cloth 204 and take out centrifuged materials.

The vacuum freeze-drying box 3 is internally provided with a multi-layer bracket for placing a plurality of trays 301, the upper end of the vacuum freeze-drying box 3 is connected with a refrigerating compressor 302, the temperature in the box is regulated through the refrigerating compressor 302, the temperature ranges from minus 60 ℃ to 4 ℃, the bottom of the vacuum freeze-drying box 3 is sequentially connected with a vacuum condenser 303 and a second vacuum pump 304, the second vacuum pump 304 can pump the internal pressure of the vacuum freeze-drying box 3 to 0-30 Pa, the vacuum condenser 303 condenses and discharges the moisture in the air in the vacuum freeze-drying box 3, the second vacuum pump 304 is prevented from being damaged by the moisture, the vacuum freeze-drying box 3 is provided with a first thermometer 305, a first pressure gauge 306 and a first observation window 307, and the temperature, the pressure and the material drying condition in the vacuum freeze-drying box 3 can be read.

The pulverizer 401 is driven by a pulverizing motor 406, the pulverizing rotating speed is 5000-30000 r/min, an air inlet fan 404 blows air into the pulverizer 401 to cool the materials, the air inlet pressure is 1-5 mpa, the materials are read through a fifth pressure gauge 407 at an air inlet 403 of the pulverizer 401, a pulverizing outlet valve 408 is arranged on an air outlet pipeline of the pulverizer 401 to control the outflow of fine powder, the bottom of a cyclone collector 410 is used for collecting ultrafine pulverized materials, a bag type dust collector 411 is used for recovering dust, and an induced draft fan 412 is connected to the upper part of the bag type dust collector to discharge waste gas so as to prevent air pollution.

The liquid storage tank 501 is a pressure vessel and is used for storing an extracting agent and storing the recovered extracting agent, a first extracting agent outlet 502 is arranged at the lower part of the liquid storage tank 501 and is connected with an ultrasonic extracting tank 505, and a second observation window 503 and a fourth pressure gauge 504 are arranged on the liquid storage tank 501 and are used for observing the liquid storage and pressure conditions. The ultrasonic extraction tank 505 is a pressure vessel, 8 probe ultrasonic generators 506 are arranged at the bottom of the ultrasonic extraction tank, the ultrasonic range is 0-60 kHz, the ultrasonic extraction tank is divided into an upper layer and a lower layer, 4 probe ultrasonic generators 506 of each layer are horizontally arranged in a cross diagonal mode, the upper layer 4 probe ultrasonic generators 506 are inserted into the ultrasonic extraction tank and exceed the inner wall of the ultrasonic extraction tank by 8mm, the lower layer 4 probe ultrasonic generators 506 are inserted into the ultrasonic extraction tank 505 in a cross diagonal mode at a horizontal included angle of 30 DEG in an inclined mode, the ultrasonic extraction tank exceeds the inner wall of the ultrasonic extraction tank by 5mm and is lower than the position of the lowest liquid level by 1cm, and the ultrasonic extraction and subcritical combined extraction is performed, the arrangement mode of ultrasonic probes is that, The ultrasonic superposition effect generated by the angle setting can increase the permeability and the dissolution capability of fat-soluble active ingredients in dried medlar, reduce the extraction time and improve the extraction rate of medlar oil, an upper cover 528 of an ultrasonic extraction tank can be opened to put materials, an ultrasonic extraction tank heating layer 526 is arranged on the outer side of the ultrasonic extraction tank 505 and can heat the extraction process, the temperature range is 30-70 ℃, an upper vacuum pipeline of the ultrasonic extraction tank 505 is connected with a first vacuum pump 520 and is controlled to open and close by a first gas valve 507, an upper liquid pipeline of the ultrasonic extraction tank 505 is connected with a liquid storage tank 501 and is controlled to open and close by a first liquid valve 508, a lower liquid pipeline of the ultrasonic extraction tank 505 is connected with a separation tank 512 and is controlled to open and close by a second liquid valve 509, a third pressure gauge 510 and a third temperature gauge 511 are arranged on the ultrasonic extraction tank 505, an exhaust pipe is arranged on the ultrasonic extraction tank 505, and a first balance valve 524 is arranged on the exhaust pipe. The first vacuum pump 520 is connected with the ultrasonic extraction tank 505 and the separation tank 512 through vacuum pipelines, and is controlled to open and close by the first gas valve 507 and the second gas valve 515 respectively for vacuumizing the ultrasonic extraction tank 505 and the separation tank 512. The separating tank 512 is a pressure vessel and is connected with the ultrasonic extracting tank 505 through a liquid pipeline to transfer the extracting solution in the ultrasonic extracting tank 505 into the separating tank 512, a separating tank heating layer 527 is arranged on the outer side of the separating tank 512 and can heat the separating process in the separating tank 512, the temperature range is 30-70 ℃, a second pressure gauge 518 and a second temperature gauge 517 are arranged on the separating tank 512 and are used for reading the pressure and the temperature in the separating tank 512, an exhaust pipe is arranged on the separating tank 512 and is provided with a second balance valve 525, the gasified extracting agent in the separating tank 512 enters a diaphragm compressor 521 through a gas pipeline connected with a second extracting agent outlet 514, the on-off of the pipeline is controlled through an extracting agent valve 519 on the gas pipeline, and the extracted medlar fruit oil is collected after passing through a discharge hole 513 on the lower part of the separating tank 512 and opening the discharge valve 516. The vaporized extractant in the separation tank 512 enters the membrane compressor 521 through a gas pipe, is compressed to a liquid state, is cooled by the condenser 522, and returns to the liquid storage tank 501.

Wherein, the material of equipment, pipeline and valve in this pilot plant is 304 stainless steel.

The specific process for extracting the medlar fruit oil by adopting the pilot scale production device is as follows:

(1) Coarse powder of raw materials

Opening an upper cover 108 of a refiner, putting dried fruits of medlar with certain mass into a scraper refiner, opening a water inlet valve 111 of the refiner, adding deionized water according to a certain proportion by reading a flowmeter 112 of the refiner, starting the refiner, setting the rotating speed of a crushing blade, opening a discharging valve 114 of the refiner below the refiner after running for a period of time, starting a screw pump 115 to drive the pulp of medlar into a filter cloth 204 of a centrifugal cavity of a horizontal filter cloth centrifuge, starting the horizontal filter cloth centrifuge, setting the centrifugal rotating speed, discharging filtrate from a drain outlet 206 after running for a period of time, opening an upper cover 202 of the centrifuge, taking out medlar wet coarse powder from the filter cloth 204, flattening the medlar wet coarse powder in a tray 301, opening a refrigerating compressor 302 of a vacuum freeze-drying box 3 to a required temperature in advance, putting the tray 301 carrying the medlar wet coarse powder into the vacuum freeze-drying box 3, starting a second vacuum pump 304 to a required pressure, and freeze-drying for a period of time to obtain medlar coarse powder.

(2) Superfine grinding:

Pouring the freeze-dried coarse powder into an airflow superfine pulverizer (pulverizer 401) from a feed inlet 402, closing a feed valve 409, opening an air inlet fan 404 of the airflow superfine pulverizer, adjusting the air pressure, opening a pulverizing motor 406, adjusting to a required rotating speed, pulverizing for a period of time, opening an induced draft fan 412 and a pulverizing outlet valve 408 of the airflow superfine pulverizer, discharging exhaust gas after passing through a bag type dust collector 411, and collecting medlar superfine powder at the bottom of a cyclone collector 410.

(3) Extracting fruit oil:

Filling ultra-fine medlar powder into a filter bag, placing the filter bag in a closed ultrasonic extraction tank 505 of a fruit oil extraction device, opening a first vacuum pump 520 to vacuumize the ultrasonic extraction tank 505 and a separation tank 512 to a certain negative pressure, closing the first vacuum pump 520 and gas valves on connecting pipelines of the first vacuum pump 520, the ultrasonic extraction tank 505 and the separation tank 512, opening a liquid valve (a first liquid valve 508) at an outlet of a liquid storage tank, placing an extractant into the ultrasonic extraction tank 505 to a required height of a liquid level, opening a heating switch to a set temperature of the extractant, opening an ultrasonic generator switch to adjust the ultrasonic frequency to a required frequency for extraction for a certain period of time, opening a second liquid valve 509 between the ultrasonic extraction tank 505 and the separation tank 512, closing the second liquid valve 509 after the extractant flows into the separation tank 512 under the action of pressure difference, opening the heating switch of the separation tank to the required temperature, opening a diaphragm compressor switch, compressing the gasified extractant to a liquid state through the diaphragm compressor 521, returning to the liquid storage tank 501 for standby through the condenser 522, arranging a third liquid valve 523 on a pipeline connected with the liquid storage tank 501, controlling the on-off of the pipeline, and opening the lower part of the liquid storage tank 512 of the medlar valve 516, and opening the valve 516.

The principles and embodiments of the present utility model have been described in detail with reference to specific examples, which are provided herein to facilitate understanding of the principles and embodiments of the present utility model and to provide further advantages and practical applications for those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the utility model.

Claims (10)

1. A pilot production device for extracting medlar fruit oil is characterized by comprising raw material coarse powder equipment, superfine grinding equipment and fruit oil extraction equipment;

The raw material coarse powder equipment comprises a refiner, a centrifugal machine and a vacuum freeze drying box, wherein a discharge port of the refiner is connected with the centrifugal machine through a discharge pipeline, the centrifugal machine is used for dehydrating the medlar pulp, and the vacuum freeze drying box is used for freeze drying medlar wet coarse powder obtained after the centrifugal machine is dehydrated;

The superfine grinding equipment comprises a grinder and a cyclone collector, wherein the grinder is provided with a feed inlet, an air inlet and an air outlet, the air inlet is connected with an air inlet fan, and the air outlet of the grinder 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 first vacuum pump, wherein a first extractant outlet is formed in the lower portion of the liquid storage tank, the first extractant outlet is 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, the first vacuum pump is connected with the ultrasonic extraction tank and the separation tank through pipelines respectively, a discharge hole is formed in the bottom of the separation tank, and a second extractant outlet is formed in the upper portion of the separation tank.

2. The device for extracting medlar fruit oil according to claim 1, wherein the homogenizer is a scraper homogenizer, the scraper homogenizer comprises a tank body, a homogenizing motor, a rotating shaft, blades, vertical baffles, scrapers and a filter plate, an upper cover is arranged at the upper part of the tank body, a discharge hole is arranged at the lower part of the tank body, a water inlet pipeline is arranged at the upper part of the side wall of the tank body, a water inlet valve and a flowmeter are arranged on the water inlet pipeline, the rotating shaft is rotationally connected in the tank body and driven to rotate by the homogenizing motor, a plurality of layers of the blades are fixedly arranged on the rotating shaft, a plurality of vertical baffles are symmetrically fixed on the inner wall of the tank body, the filter plate is arranged at the lower part of the tank body and below each blade, the scrapers are arranged at the lower part of the rotating shaft, the lower ends of the scrapers are contacted with the upper surface of the filter plate, and the scrapers rotate along with the rotating shaft and are used for stirring material particles gathered on the filter plate to be crushed again.

3. The pilot production device for extracting medlar fruit oil according to claim 2, wherein each layer of blades are axially arranged at intervals along the rotating shaft, one layer of blades is fixed at intervals of 25 degrees in the circumferential direction, each layer of blades comprises two salix leaves, and the two salix leaves are uniformly distributed along the circumferential direction of the rotating shaft.

4. The pilot plant for extracting medlar fruit oil as claimed in claim 1, wherein the superfine pulverizing device further comprises a bag type dust collector, and the upper part of the cyclone collector is connected with the bag type dust collector through a pipeline.

5. The pilot scale production device for extracting medlar fruit oil according to claim 1, wherein the fruit oil extracting equipment further comprises a condenser and a diaphragm compressor, the condenser is connected to the upper part of the liquid storage tank, 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 plant for extracting medlar fruit oil according to claim 2, wherein the discharge pipeline is provided with a screw pump for pumping crushed medlar homogenate into the centrifuge.

7. The pilot plant production device for extracting medlar fruit oil according to claim 1, wherein 8 probe-type ultrasonic generators are arranged at the bottom of the ultrasonic extraction tank and are divided into an upper layer and a lower layer, 4 probe-type ultrasonic generators are horizontally arranged at the diagonal angle of a cross and are inserted into the ultrasonic extraction tank and exceed the inner wall of the ultrasonic extraction tank by 8mm, and 4 probe-type ultrasonic generators at the bottom of the ultrasonic extraction tank are diagonally inserted into the ultrasonic extraction tank at the diagonal angle of the cross and exceed the inner wall of the ultrasonic extraction tank by 5mm at a horizontal included angle of 30 degrees.

8. The pilot plant production device for extracting medlar fruit oil according to claim 1, wherein a plurality of trays are arranged in a vacuum freeze drying box, the upper end of the vacuum freeze drying box is connected with a refrigeration compressor, the bottom of the vacuum freeze drying box is sequentially connected with a vacuum condenser and a second vacuum pump, and a first thermometer, a first pressure gauge and a first observation window are arranged on the vacuum freeze drying box.

9. The pilot scale production device for extracting medlar fruit oil according to claim 1, wherein 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 plant for extracting medlar fruit oil as claimed in claim 1, wherein an ultrasonic extraction tank heating layer is arranged on the outer side of the ultrasonic extraction tank, and a separation tank heating layer is arranged on the outer side of the separation tank.