CN111493136A - Method for preparing dehydrated toona sinensis by freeze drying and processing equipment thereof - Google Patents
Method for preparing dehydrated toona sinensis by freeze drying and processing equipment thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/02—Dehydrating; Subsequent reconstitution
- A23B7/024—Freeze-drying, i.e. cryodessication or lyophilisation
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/154—Organic compounds; Microorganisms; Enzymes
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/154—Organic compounds; Microorganisms; Enzymes
- A23B7/155—Microorganisms; Enzymes; Antibiotics
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23B—PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS
- A23B7/00—Preservation or chemical ripening of fruit or vegetables
- A23B7/14—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10
- A23B7/153—Preserving or ripening with chemicals not covered by groups A23B7/08 or A23B7/10 in the form of liquids or solids
- A23B7/157—Inorganic compounds
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2002/00—Food compositions, function of food ingredients or processes for food or foodstuffs
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23V—INDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
- A23V2400/00—Lactic or propionic acid bacteria
- A23V2400/11—Lactobacillus
- A23V2400/125—Casei
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Microbiology (AREA)
- Inorganic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a method for preparing dehydrated toona sinensis by freeze drying, which comprises the following steps: s1, processing raw materials; s2, ultrasonic bacteria reduction; s3, passing water; s4, a refrigeration cryoprotectant; s5, wrapping a freezing protective solution; s6, pre-freezing; s7, freeze drying; s8, drying again; the invention also discloses processing equipment for preparing the dehydrated toona sinensis by freeze drying, which comprises a machine body, wherein a freeze drying cavity and an equipment cavity are formed in the machine body, a freeze drying mechanism is arranged in the equipment cavity, a placing cabinet is connected in the freeze drying cavity in a sliding manner, and the placing cabinet comprises a sealing plate and two sliding plates which are symmetrically arranged. Has the advantages that: the Chinese toon cooling and drying machine is convenient and fast to use, can effectively guarantee the taste of the Chinese toons after being washed with water in the cooling and drying process of the Chinese toons, guarantees that nutrient substances in the Chinese toons can be reserved to the maximum extent, and prolongs the quality guarantee period of the Chinese toons to the maximum extent on the premise of meeting the two requirements.
Description
Technical Field
The invention relates to the technical field of dehydrated vegetable preparation, in particular to a method for preparing dehydrated toona sinensis by freeze drying and processing equipment thereof.
Background
Vegetables are subsidiary food necessary for human life, are main sources of vitamins, dietary fibers, minerals and the like, and play an important role in reasonable dietary structure. However, fresh vegetables are living organisms and are still living after being harvested, so that the nutrients in the vegetables are continuously consumed. Meanwhile, vegetables are also perishable products, are easily infected and decayed by microorganisms and the like, are difficult to store for a long time at normal temperature, and are difficult to maintain the original quality. It is therefore necessary to process vegetables to produce a wide variety of nutritional, healthy, value-added vegetable products. The dehydrated vegetable is one of the processed vegetable products, can better keep the characteristics of color, fragrance, taste, quality and the like of the fresh vegetable, and has the advantages of convenient transportation, long storage time and the like. The demand of dehydrated vegetables in domestic and foreign markets has increased year by year in recent years, and the dehydrated vegetable processing industry in China has also been rapidly developed in recent years. At present, the vegetables used for dehydration processing are of various types, such as cabbage, carrot, garlic, kidney bean, mushroom, kudzu and the like. The types of the products mainly include dried vegetables which are eaten after being rehydrated, seasoning bags of instant foods, vegetable chips and the like.
Although the vegetable processing industry is good in recent years, the whole level of the vegetable processing industry is weak, the processing amount is small, and the product type is single.
Therefore, we propose a method for preparing dehydrated toona sinensis by freeze drying and a processing device thereof to solve the above problems.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a method for preparing dehydrated toona sinensis by freeze drying and processing equipment thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for preparing dehydrated Toona sinensis by freeze drying comprises the following steps:
s1, raw material treatment: picking fresh and healthy Chinese toon buds, removing sepals, washing with flowing water to remove silt on the surfaces of the Chinese toon, and then cutting the Chinese toon into Chinese toon sections of 2-5 cm; s2, ultrasonic bacteria reduction: carrying out ultrasonic sterilization treatment on the Chinese toon segments for 18-25 min under the conditions of 200W of power and 40 ℃ of water temperature;
s3, water passing: placing the Chinese toon segments into boiling water at the temperature of 95-100 ℃ for blanching, slightly stirring during blanching, fishing out after blanching for 5-6 min, and rapidly cooling by using flowing water;
s4, preparing a cryoprotectant by adding 0.2-0.6 mol/L of sodium chloride, 0.01-0.025 mol/L of ascorbic acid, 0.01-0.015 mol/L of nisin, 0.02-0.04 mol/L of lactobacillus casei, 0.01-0.03 mol/L of trehalose and 0.02-0.04 mol/L of glucan into a certain amount of aqueous solution;
s5, wrapping a freezing protective solution: putting the Chinese toon segments into a cryoprotectant for 15-30 min, taking out and filtering to dry;
s6, pre-freezing: putting the Chinese toon segments into a freezing disc, freezing the materials for 2-6 hours at-8 to-2 ℃, then pre-freezing for 4-8 hours at-15 to-30 ℃;
s7, freeze drying; putting the Chinese toon segments into a freeze dryer for cooling and drying; s8, drying again; and (4) after cooling and drying, putting the cedrela sinensis segments into a dryer quickly, heating to room temperature, and filling nitrogen for packaging to obtain the dehydrated cedrela sinensis.
The utility model provides a processing equipment of freeze drying preparation dehydration chinese toon, includes the organism, cooling drying chamber and equipment chamber have been seted up in the organism, the equipment intracavity is equipped with freeze drying mechanism, sliding connection has places the cabinet in the cooling drying chamber, place two sliding plates that the cabinet includes closing plate and symmetry setting, and two sliding plate symmetry fixed connection on the closing plate, two common a plurality of racks of fixedly connected with between the sliding plate, and a plurality of racks equidistance set up, and the equal fixed connection of every rack is on the closing plate.
In the processing equipment for preparing dehydrated toona sinensis by freeze drying, the cooling and drying mechanism comprises a water-cooled condenser, a refrigerant compressor, an air heat exchanger, a high-efficiency separator, an air-cooled condenser and an evaporator, wherein the refrigerant compressor, the air-cooled condenser, the water-cooled condenser, the evaporator and the air heat exchanger are sequentially connected through pipelines;
two air return pipes are communicated with the evaporator and connected with a refrigerant compressor, wherein one air return pipe is provided with a hot gas bypass valve, and the other air return pipe is provided with a gas-liquid separator;
an electromagnetic valve, a drying filter and a refrigerant window are sequentially arranged on a pipeline connected between the water-cooled condenser and the evaporator, and an automatic drainer is arranged on the evaporator; the air heat exchanger is provided with a high-efficiency separator through a pipeline, and the high-efficiency separator is communicated with an electronic drainer.
In the above processing equipment for preparing dehydrated toona sinensis by freeze drying, a temperature controller and a temperature sensing head are arranged on the inner side wall of the cooling and drying cavity, the temperature controller is electrically connected with the refrigerant compressor, and the temperature sensing head is electrically connected with the temperature controller.
In the processing equipment for preparing the dehydrated cedrela sinensis by freeze drying, an air outlet pressure gauge is arranged on an exhaust pipe of the air heat exchanger.
In the processing equipment for preparing dehydrated toona sinensis by freeze drying, the water-cooled condenser is electrically connected with a pressure control switch, and is communicated with a cooling water filter.
In the processing equipment for preparing dehydrated cedrela sinensis by freeze drying, two sliding grooves are symmetrically formed in the side wall of each sliding plate, a plurality of rolling wheels are symmetrically and rotatably connected to the inner wall of each sliding groove, a plurality of sliding rods are symmetrically and fixedly connected to the inner side wall of the machine body, two arc-shaped rolling grooves are symmetrically formed in each sliding rod, and each rolling wheel is in rolling connection with the corresponding arc-shaped rolling groove.
In the processing equipment for preparing the dehydrated cedrela sinensis by freeze drying, the outer side wall of the sealing plate is provided with a handle groove.
Compared with the prior art, the invention has the beneficial effects that:
1. the cabinet is placed by pulling the handle groove outwards, the sliding plate moves in the direction far away from the machine body in the horizontal direction, the rolling wheels inside the sliding groove roll in the arc rolling grooves on the sliding rod in the moving process, sliding friction between the cabinet and the machine body is converted into rolling friction, and friction between the cabinet and the machine body is reduced.
2. The air-cooled condenser and the water-cooled condenser are connected in series to realize multiple cooling of gas, the cooling effect is enhanced, moisture in the gas is removed through a drying filter, a high-efficiency separator, an electronic drainer, a cooling water filter, an automatic drainer and the like in the cooling process, and the cooling and drying mechanism can simultaneously dry the inside of the machine body when the inside of the machine body is cooled. 3. The raw materials for preparing the cryoprotectant comprise sodium chloride, ascorbic acid, nisin, lactobacillus casei, trehalose, glucan and the like, and the raw materials are food-grade, safe and non-toxic and accord with the food safety advocated by the state at present; the cryoprotectant can protect the nutrient substances in the Chinese toons from being damaged in the freezing process, ensure that the nutrient substances in the Chinese toons can be reserved to the maximum extent, prolong the shelf life of the Chinese toons and meet the requirements of consumers in China on dried vegetables; after the tilapia flesh is kept for a long fresh-keeping period, the circulation of the flesh and the shelf life are more convenient, and the cost of raw materials is reduced.
In conclusion, the Chinese toon cooling and drying machine is convenient and fast to use, can effectively guarantee the taste of the Chinese toons after the Chinese toons are washed with water in the cooling and drying process, can guarantee that the nutrient substances in the Chinese toons can be reserved to the maximum extent, and can maximally prolong the quality guarantee period of the Chinese toons on the premise of meeting the two requirements.
Drawings
FIG. 1 is a schematic structural diagram of a processing device for preparing dehydrated Toona sinensis by freeze drying according to the present invention;
FIG. 2 is a schematic structural diagram of a part of a cooling and drying mechanism in a processing device for preparing dehydrated toona sinensis by freeze drying according to the present invention;
FIG. 3 is a schematic view of a part of the structure of the machine body and the placing cabinet in a state of being connected in the processing equipment for preparing dehydrated Toona sinensis by freeze drying according to the present invention;
fig. 4 is an enlarged view of a portion a in fig. 3.
In the figure: 1 machine body, 2 cooling and drying chambers, 3 equipment chambers, 4 placing cabinets, 5 gas-liquid separators, 6 hot gas bypass valves, 7 air outlet pressure gauges, 8 air return pipes, 9 exhaust pipes, 10 water-cooled condensers, 11 refrigerant compressors, 12 air heat exchangers, 13 electromagnetic valves, 14 drying filters, 15 refrigerant windows, 16 electronic water drainers, 17 high-efficiency separators, 18 air-cooled condensers, 19 automatic water drainers, 20 pressure control switches, 21 cooling water filters, 22 temperature controllers, 23 placing racks, 24 handle tanks, 25 evaporators, 26 temperature sensing heads, 27 sliding chutes, 28 rolling wheels, 29 arc-shaped rolling chutes and 30 sliding rods.
Detailed Description
The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.
Examples
A method for preparing dehydrated Toona sinensis by freeze drying comprises the following steps:
s1, raw material treatment: picking fresh and healthy Chinese toon buds, removing sepals, washing with flowing water to remove silt on the surfaces of the Chinese toon, and cutting the Chinese toon into Chinese toon sections of 2 cm;
s2, ultrasonic bacteria reduction: carrying out ultrasonic sterilization treatment on the Chinese toon segments for 18min under the conditions of 200W of power and 40 ℃ of water temperature;
s3, passing water; placing the Chinese toon segments into boiling water of 100 deg.C, blanching while gently stirring, blanching for 5min, taking out, and rapidly cooling with flowing water;
s4, preparing a freezing protective agent by adding 0.2 mol/L mol of sodium chloride, 0.01 mol/L of ascorbic acid, 0.01 mol/L of nisin, 0.02 mol/L of lactobacillus casei, 0.01 mol/L of trehalose and 0.02 mol/L of glucan into a certain amount of aqueous solution to prepare the freezing protective agent, S5 wrapping the freezing protective solution, putting the cedrela sinensis segments into the freezing protective agent for 15min, taking out and draining;
s6, pre-freezing; putting the Chinese toon segments into a freezing tray, freezing the materials for 2 hours at-8 ℃, then putting the materials into a freezing tray, and pre-freezing for 4 hours at-15 ℃;
s7, freeze drying; putting the Chinese toon segments into a freeze dryer for cooling and drying; s8, drying again; put into the toon section after the cooling drying and change over to the desicator with the toon rapidly in, wait that it rises to room temperature after the nitrogen-filled packing, it refers to fig. 1-4 to obtain the dewatered toon, a processing equipment of freeze drying preparation dewatered toon, including organism 1, set up cooling drying chamber 2 and equipment chamber 3 in the organism 1, be equipped with the freeze drying mechanism in the equipment chamber 3, sliding connection has the cabinet of placing 4 in the cooling drying chamber 2, the cabinet of placing 4 includes two sliding plates of closing plate and symmetry setting, and two sliding plate symmetry fixed connection are on the closing plate, handle groove 24 has been seted up on the lateral wall of closing plate, common fixed connection has a plurality of racks 23 between two sliding plates, and a plurality of racks 23 equidistance sets up, and every rack 23 is equal fixed connection on the closing plate.
Two sliding grooves 27 are symmetrically formed in the side wall of each sliding plate, a plurality of rolling wheels 28 are symmetrically and rotatably connected to the inner wall of each sliding groove, a plurality of sliding rods 30 are symmetrically and fixedly connected to the inner side wall of the machine body 1, two arc-shaped rolling grooves 29 are symmetrically formed in each sliding rod 30, and each rolling wheel 28 is in rolling connection with the corresponding arc-shaped rolling groove 29. The cooling and drying mechanism comprises a water-cooled condenser 10, a refrigerant compressor 11, an air heat exchanger 12, a high-efficiency separator 17, an air-cooled condenser 18 and an evaporator 25, wherein the refrigerant compressor 11, the air-cooled condenser 18, the water-cooled condenser 10, the evaporator 25 and the air heat exchanger 12 are sequentially connected through pipelines.
Two air return pipes 8 are communicated with the evaporator 25 and connected with a refrigerant compressor 11, wherein one air return pipe 8 is provided with a hot gas bypass valve 6, and the other air return pipe 8 is provided with a gas-liquid separator 5.
The electromagnetic valve 13, the drying filter 14 and the refrigerant window 15 are sequentially installed on a pipeline connected between the water-cooled condenser 10 and the evaporator 25, and the automatic water drainer 19 is installed on the evaporator 25.
An air outlet pressure gauge 7 is arranged on an exhaust pipe 9 of the air heat exchanger 12, an efficient separator 17 is arranged on the air heat exchanger 12 through a pipeline, and an electronic drainer 16 is communicated with the efficient separator 17.
The temperature controller 22 and the temperature sensing head 26 are disposed on the inner sidewall of the cooling and drying cavity 2, the temperature controller 22 is electrically connected to the refrigerant compressor 11, and the temperature sensing head 26 is electrically connected to the temperature controller 22.
The water-cooled condenser 10 is electrically connected to a pressure control switch 20, and the water-cooled condenser 10 is connected to a cooling water filter 21.
Place cabinet 4 through the outside pulling of handle groove 24, then the sliding plate moves in the direction of keeping away from organism 1 in the horizontal direction, in the motion process, the inside rolling wheel 28 of spout 17 rolls in the arc slot 29 on slide bar 30, will place the sliding friction power between cabinet 4 and the organism 1 and convert rolling friction into, reduce the frictional force of placing between cabinet 4 and the organism 1, with this to place cabinet 4 and dismantle from organism 1, place the chinese toon section on rack 23 in proper order afterwards, will place cabinet 4 and install in organism 1 and place rack 23 into cooling and drying chamber 2 completely afterwards.
When the packaged and processed toona sinensis segment is placed in the machine body 1, a power line of the device is connected with 220V commercial power, a contact of a temperature controller 22 is connected, a refrigerant compressor 11 starts to work, a low-temperature and low-pressure refrigerant is sucked by the refrigerant compressor 11, and is compressed into high-temperature and high-pressure superheated gas in a cylinder in the refrigerant compressor 11 and then discharged into an air-cooled condenser 18; the high-temperature and high-pressure refrigerant gas is radiated by the air-cooled condenser 18 and the water-cooled condenser 10, the temperature is continuously reduced, the refrigerant gas is gradually cooled to be saturated vapor with normal temperature and high pressure, the refrigerant gas is further cooled to be saturated liquid, the temperature is not reduced any more, the temperature at the moment is called as condensation temperature, and the pressure of the refrigerant in the whole condensation process is almost unchanged; the condensed refrigerant saturated liquid is filtered by the drying filter 14 to remove moisture and impurities, then flows into the air heat exchanger 12 to be cooled again, the high-efficiency separator 17 separates the air in the air heat exchanger 12 in the cooling process in the air heat exchanger 12, and the gas enters the evaporator 25 after the moisture in the air is removed; the heat absorption and vaporization in the evaporator 25 are started, the temperature of the evaporator 10 and the surrounding is reduced, the refrigerant is changed into low-temperature and low-pressure gas, the refrigerant coming out of the evaporator 10 returns to the refrigerant compressor 11 again, and the processes are repeated to transfer the heat in the machine body 1 to the air outside the box, so that the refrigeration is realized.
Although the terms of the machine body 1, the cooling and drying chamber 2, the equipment chamber 3, the storage cabinet 4, the gas-liquid separator 5, the hot gas bypass valve 6, the air outlet pressure gauge 7, the air return pipe 8, the exhaust pipe 9, the water-cooled condenser 10, the refrigerant compressor 11, the air heat exchanger 12, the electromagnetic valve 13, the drying filter 14, the refrigerant window 15, the electronic drainer 16, the high-efficiency separator 17, the air-cooled condenser 18, the automatic drainer 19, the pressure control switch 20, the cooling water filter 21, the thermostat 22, the rack 23, the handle slot 24, the evaporator 25, the temperature sensing head 26, the chute 27, the rolling wheel 28, the arc-shaped rolling slot 29, the sliding rod 30, and the like are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (8)
1. A method for preparing dehydrated toona sinensis by freeze drying is characterized by comprising the following steps: the method comprises the following steps:
s1, raw material treatment: picking fresh and healthy Chinese toon buds, removing sepals, washing with flowing water to remove silt on the surfaces of the Chinese toon, and then cutting the Chinese toon into Chinese toon sections of 2-5 cm;
s2, ultrasonic bacteria reduction: carrying out ultrasonic sterilization treatment on the Chinese toon segments for 18-25 min under the conditions of 200W of power and 40 ℃ of water temperature;
s3, passing water; placing the Chinese toon segments into boiling water at the temperature of 95-100 ℃ for blanching, slightly stirring during blanching, fishing out after blanching for 5-6 min, and rapidly cooling by using flowing water;
s4, preparing a cryoprotectant by adding 0.2-0.6 mol/L of sodium chloride, 0.01-0.025 mol/L of ascorbic acid, 0.01-0.015 mol/L of nisin, 0.02-0.04 mol/L of lactobacillus casei, 0.01-0.03 mol/L of trehalose and 0.02-0.04 mol/L of glucan into a certain amount of aqueous solution;
s5, wrapping a freezing protective solution; putting the Chinese toon segments into a cryoprotectant for 15-30 min, taking out and filtering to dry;
s6, pre-freezing; putting the Chinese toon segments into a freezing disc, freezing the materials for 2-6 hours at-8 to-2 ℃, then pre-freezing for 4-8 hours at-15 to-30 ℃;
s7, freeze drying; putting the Chinese toon segments into a freeze dryer for cooling and drying;
s8, drying again; and (4) after cooling and drying, putting the cedrela sinensis segments into a dryer quickly, heating to room temperature, and filling nitrogen for packaging to obtain the dehydrated cedrela sinensis.
2. The processing equipment for preparing the dehydrated toona sinensis by freeze drying comprises a machine body (1), and is characterized in that: set up cooling and drying chamber (2) and equipment chamber (3) in organism (1), be equipped with freeze drying mechanism in equipment chamber (3), sliding connection has placing cabinet (4) in cooling and drying chamber (2), place two sliding plates that cabinet (4) set up including closing plate and symmetry, and two sliding plate symmetry fixed connection are on the closing plate, two common fixedly connected with a plurality of racks (23) between the sliding plate, and a plurality of racks (23) equidistance sets up, and the equal fixed connection of every rack (23) is on the closing plate.
3. The processing equipment for preparing dehydrated toona sinensis by freeze drying according to claim 2, wherein the processing equipment comprises: the cooling and drying mechanism comprises a water-cooled condenser (10), a refrigerant compressor (11), an air heat exchanger (12), a high-efficiency separator (17), an air-cooled condenser (18) and an evaporator (25), wherein the refrigerant compressor (11), the air-cooled condenser (18), the water-cooled condenser (10), the evaporator (25) and the air heat exchanger (12) are sequentially connected through a pipeline;
two air return pipes (8) are communicated with the evaporator (25) and connected with a refrigerant compressor (11), wherein a hot gas bypass valve (6) is installed on one air return pipe (8), and a gas-liquid separator (5) is installed on the other air return pipe (8);
a solenoid valve (13), a drying filter (14) and a refrigerant window (15) are sequentially arranged on a pipeline connected between the water-cooled condenser (10) and the evaporator (25), and an automatic drainer (19) is arranged on the evaporator (25);
the air heat exchanger (12) is provided with a high-efficiency separator (17) through a pipeline, and the high-efficiency separator (17) is communicated with an electronic drainer (16).
4. The processing equipment for preparing dehydrated toona sinensis by freeze drying according to claim 3, wherein the processing equipment comprises: the inner side wall of the cooling and drying cavity (2) is provided with a temperature controller (22) and a temperature sensing head (26), the temperature controller (22) is electrically connected with the refrigerant compressor (11), and the temperature sensing head (26) is electrically connected with the temperature controller (22).
5. The processing equipment for preparing dehydrated toona sinensis by freeze drying according to claim 3, wherein the processing equipment comprises: and an air outlet pressure gauge (7) is arranged on an exhaust pipe (9) of the air heat exchanger (12).
6. The processing equipment for preparing dehydrated toona sinensis by freeze drying according to claim 3, wherein the processing equipment comprises: the water-cooled condenser (10) is electrically connected with a pressure control switch (20), and the water-cooled condenser (10) is communicated with a cooling water filter (21).
7. The processing equipment for preparing dehydrated toona sinensis by freeze drying according to claim 2, wherein the processing equipment comprises: two sliding grooves (27) are symmetrically formed in the side wall of each sliding plate, a plurality of rolling wheels (28) are symmetrically and rotatably connected to the inner wall of each sliding groove, a plurality of sliding rods (30) are symmetrically and fixedly connected to the inner side wall of the machine body (1), two arc-shaped rolling grooves (29) are symmetrically formed in each sliding rod (30), and each rolling wheel (28) is connected to the corresponding arc-shaped rolling groove (29) in a rolling mode.
8. The processing equipment for preparing dehydrated toona sinensis by freeze drying according to claim 2, wherein the processing equipment comprises: the outer side wall of the sealing plate is provided with a handle groove (24).
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| CN114568660A (en) * | 2022-03-11 | 2022-06-03 | 河北农业大学 | Cedrela sinensis slice and preparation process thereof |
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