CN111637692B

CN111637692B - Freeze drying equipment based on integral side structure

Info

Publication number: CN111637692B
Application number: CN202010468945.1A
Authority: CN
Inventors: 潘益军; 李显刚
Original assignee: Fujian Pet Life Technology Co Ltd
Current assignee: Fujian pet Life Technology Co., Ltd
Priority date: 2020-05-28
Filing date: 2020-05-28
Publication date: 2021-12-17
Anticipated expiration: 2040-05-28
Also published as: CN111637692A

Abstract

The utility model relates to a freeze-drying technical field specifically discloses a freeze-drying equipment based on integral side structure, including freeze-drying case, cold-trap and vacuum pump, be provided with the isolating valve between freeze-drying case and the cold-trap, the vacuum pump is to the inside evacuation of freeze-drying incasement portion, and the inside of freeze-drying case is rotated and is connected with the carousel, and the carousel is intermittent type nature rotatory under the actuating mechanism drive, and the lower extreme of carousel is provided with the automatic valve, and the top and the bottom of freeze-drying case are provided with charge valve and relief valve respectively. The purpose of this patent is to solve the problem that the dried fruit that leads to when the dried fruit is kept static to current freeze drying equipment preparation dried fruit is dry inhomogeneous easily.

Description

Freeze drying equipment based on integral side structure

Technical Field

The invention relates to the technical field of vacuum freeze drying, in particular to freeze drying equipment based on an integral side-mounted structure.

Background

Freeze-drying has the following advantages:

freeze-drying is performed at low temperatures and is therefore particularly useful for many heat-sensitive substances.

When the material is dried at low temperature, some volatile components in the material are slightly lost, and the original nutritional ingredients are kept.

Third, the growth of microorganisms and the action of enzymes cannot be performed during the freeze-drying process, and thus the original shape can be maintained.

And fourthly, because the drying is carried out in a frozen state, the volume is almost unchanged, the original structure is kept, and the concentration phenomenon cannot occur.

And fifthly, the dried substance is loose and porous and is in a spongy shape, and the substance is quickly and completely dissolved after water is added, and the original shape is almost immediately recovered.

And sixthly, because the drying is carried out under vacuum, oxygen is little, and therefore some substances which are easy to oxidize are protected.

Drying can remove more than 95-99% of water, so that the dried product can be stored for a long time without deterioration.

The freeze-dried fruit is quickly frozen and dehydrated in a vacuum ice shape, keeps the original color, fragrance, taste, nutrient components and the original appearance of materials, has good rehydration, does not contain any additive, and is an ideal natural sanitary food.

But current fruit freeze-drying equipment is cut into the cubic or the strip tiling with fruit and is placed in the tray and put into the freeze-drying oven with the tray is whole again and carry out the prefreezing, carries out freeze-drying again after the prefreezing is accomplished, and dry in-process fruit keeps static with the tray, and dry speed is slow, and each part is dry inhomogeneous easily on the dried fruit, influences the final taste and the outward appearance shape of dried fruit.

Cold traps (cold traps) are traps that trap gas in a condensed manner on a cooled surface. Is a device which is arranged between a vacuum container and a pump and is used for adsorbing gas or capturing oil vapor. Such as cooling coils in a freeze dryer.

However, the slow gas flow rate of the existing freeze drying oven easily causes a large amount of ice formation and even blockage at the front end of the cooling coil.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides freeze drying equipment based on an integral side-mounted structure, and solves the problem that when the existing freeze drying equipment is used for manufacturing dried fruits, the dried fruits are kept still and are easy to dry unevenly.

In order to solve the problems, the technical scheme adopted by the invention is as follows: the utility model provides a freeze-drying equipment based on integral side structure, includes freeze-drying case, cold-trap and vacuum pump, be provided with the isolation valve between freeze-drying case and the cold-trap, the vacuum pump is to the inside evacuation of freeze-drying incasement portion, the internal rotation of freeze-drying case is connected with the carousel, and the carousel is intermittent type nature rotatory under the actuating mechanism drive, and the lower extreme of carousel is provided with the automatic valve, and the top and the bottom of freeze-drying case are provided with charge valve and relief valve respectively.

The technical principle of the technical scheme is as follows:

1. the structure of the freeze-drying box, the cold trap and the vacuum pump adopts the prior art;

2. arranging a rotary table for accommodating fruits to be dried;

2. the fruit peeling machine is characterized in that a driving mechanism is arranged, a rotary disc intermittently rotates under the driving of the driving mechanism, when the rotary disc rotates, fruits move to the edge of the rotary disc under the action of centrifugal force, and when the rotary disc stops rotating, the fruits move to the middle of the rotary disc under the action of gravity; thereby causing the fruit to move continuously in the turntable.

The beneficial effect that this scheme produced is: compared with the existing freeze drying equipment, the existing freeze drying equipment keeps the dried fruits still when the dried fruits are manufactured, so that the dried fruits are easy to dry unevenly; in the scheme of the application, the rotary disc intermittently rotates under the driving of the driving mechanism, when the rotary disc rotates, the fruits move to the edge of the rotary disc under the action of centrifugal force, and when the rotary disc stops rotating, the fruits move to the middle of the rotary disc under the action of gravity; the fruit can move continuously in the rotary disc, so that the fruit is heated uniformly, uniform drying of the fruit can be realized, and the quality of the dried fruit can be improved; the rotation of the turntable can drive the air inside the freeze-drying box to circulate, so that the drying speed is improved; in addition, the flow rate of the gas entering the cold trap can be accelerated, and the phenomenon that the front end of the cooling coil of the freeze-drying box is greatly frozen and even blocked can be avoided.

Further, a fixed disc is fixed inside the freeze-drying box, the rotary disc is rotatably connected to the upper end of the fixed disc, an air hole with the axis perpendicular to the side wall of the rotary disc is formed in the rotary disc, a cavity is formed between the fixed disc and the rotary disc and communicated with the inside of the cavity, the cavity is connected with an air source through a pipeline, and the air source intermittently blows air to the inside of the cavity; the charging valve is positioned right above the edge of the rotating disc.

In the rotating process of the rotary disc, the weight of dried fruits is gradually reduced along with the drying, the feeding valve is opened after the dried fruits on the rotary disc are dried, new pre-frozen fruits are added onto the rotary disc, the dried fruits are located in the center of the rotary disc due to the small centrifugal force on the dried fruits, the fruits to be dried are located at the edge of the rotary disc due to the large weight of the fruits to be dried and the large centrifugal force on the fruits to be dried, air is blown into the cavity by the air source, the dried fruits are blown up by the air flow due to the light weight and are suspended right above the automatic valve, and the situation that the dried fruits and the fruits which are not freeze-dried are contacted to influence the moisture in the freeze-dried fruits is avoided; and opening the automatic valve, after the air source stops blowing, enabling the suspended dried fruits after freeze drying to fall downwards under the action of gravity and pass through the automatic valve, and then closing the automatic valve and the feeding valve. Therefore, the dried fruit is discharged, meanwhile, the feeding is realized, and the newly added fruit cannot influence the freeze-dried fruit.

Further, the upper end of carousel has the paddle along the radial circumference evenly distributed of carousel.

The blades are driven to rotate in the rotating process of the rotary disc to accelerate air convection, so that on one hand, the vaporization of moisture in the fruits can be accelerated, and the drying rate is improved; on the other hand, the flow velocity of the gas entering the cold trap can be accelerated, and the phenomenon that the front end of the cooling coil is greatly frozen and even blocked is avoided.

Further, air supply, automatic valve and charging valve electric connection have same controller, and when the air supply was blown, the controller control automatic valve opened and control the charging valve and close, and after the air supply stopped blowing, the controller control charging valve opened to close after control automatic valve and charging valve postponed 3-5 seconds.

Realize automatic control through the controller, the in-process that the air supply was blown, the charging valve keeps the closed condition, and the air supply stops to blow the back, and the material that the drying was accomplished drops through the automatic valve automatically under self gravity, and the charging valve is opened simultaneously, and is reinforced to the carousel automatically, reinforced back automatic closing automatic valve and the charging valve that finishes.

Further, the air source comprises a first cylinder body which is fixed on the freeze-drying box and the axis of which is arranged along the vertical direction, a first piston is connected in the first cylinder body in a sliding manner, a one-way air inlet valve and a one-way exhaust valve are fixed at the lower end of the first cylinder body, the one-way exhaust valve is communicated with the inside of the cavity through an air blowing pipe, and a first piston rod which is arranged along the vertical direction is fixed at the upper end of the first piston; the periphery of the first cylinder body is fixedly sleeved with a second cylinder body, the inside of the second cylinder body is connected with an annular piston in a sliding manner, and the top and the bottom of the second cylinder body are both provided with openings; the lower part of the side wall of the second cylinder body is communicated with the feeding valve through a pipeline; a second piston rod is fixed on the upper end surface of the annular piston; the upper ends of the first piston rod and the second piston rod are fixed through a connecting rod, and the connecting rod can slide up and down in a reciprocating mode under the driving of the hydraulic cylinder.

The part of the second cylinder body, which is positioned above the annular piston, is used for containing fruits to be dried, and the first cylinder body is used for blowing air into the freeze-drying box; when the telescopic shaft of the hydraulic cylinder extends downwards, the telescopic shaft of the hydraulic cylinder drives the first piston rod and the second piston rod to move downwards through the connecting rod, so that the first piston and the annular piston are driven to move downwards, the one-way air inlet valve on the first cylinder body is closed, the one-way exhaust valve on the first cylinder body is opened, compressed air discharged from the first cylinder body is discharged into a cavity between the fixed disc and the rotary disc through the air blowing pipe, and the dried freeze-dried fruits are blown up and positioned right above the automatic valve; when the two pistons move to the limit position below, fruits to be dried above the annular piston automatically enter the turntable through the pipeline and the feeding valve under the vacuum acting force in the freeze-drying box, and automatic feeding is realized.

When the telescopic shaft of the hydraulic cylinder is contracted upwards, the telescopic shaft of the hydraulic cylinder drives the first piston rod and the second piston rod to move upwards through the connecting rod, so that the first piston and the annular piston are driven to move upwards, the one-way air inlet valve on the first cylinder body is opened, the one-way exhaust valve on the first cylinder body is closed, and the inside of the first cylinder body inhales air; when the annular piston moves, the fruits on the annular piston are limited in the second cylinder body, so that the feeding is automatically stopped; and in the carminative in-process of first cylinder body, the material in the second cylinder body can not get into the freeze-drying tank, accomplishes the back when first cylinder body exhausts, just gets into in the freeze-drying tank fruit in the second cylinder body to drop to the below of automatic valve after the suspension of the dried fruit of the inside drying completion of realization freeze-drying tank, treat dry fruit automatic feed and can not cause the influence to the dried fruit of drying completion when the dried fruit that realizes the drying completion drops.

Further, the driving mechanism comprises a motor fixed below the freeze-drying box, an output shaft of the motor is arranged vertically upwards, a rotating shaft is fixed on the output shaft of the motor, and the rotating shaft penetrates through a bottom plate of the freeze-drying box and is in rotary sealing connection with the freeze-drying box; the upper end of pivot is fixed with hollow fixed column, has seted up the discharge gate on the lateral wall of fixed column, and the fixed cover in the upper end of fixed column is established in the periphery of automatic valve.

The motor drive pivot is rotated, and the pivot passes through the fixed column and drives the carousel rotation, and the fruit that dry on the carousel was decided is done through automatic valve and fixed column inside and arrange to the freeze-drying incasement portion of carousel below from the discharge gate.

Drawings

Fig. 1 is an overall structural view of an embodiment of the present invention.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a freeze-drying box 10, a discharge valve 11, an isolation valve 12, a feed inlet 13, a fixed disc 20, a cavity 21, a rotary disc 22, an air hole 23, a paddle 24, an automatic valve 25, a discharge outlet 26, a fixed plate 27, a rotating shaft 28, a motor 29, a first chamber 101, a second chamber 102, a first cylinder 30, a first piston 31, a one-way air inlet valve 32, a one-way exhaust valve 33, a first piston rod 34, a connecting rod 35, an air blowing pipe 36, a second cylinder 40, an annular piston 41, a second piston rod 42, a hydraulic cylinder 50 and a telescopic shaft 51 of the hydraulic cylinder.

The embodiment is basically as shown in the attached figure 1: the utility model provides a freeze-drying equipment based on integral side structure, includes freeze-drying case 10, cold trap and vacuum pump, is provided with isolating valve 12 between freeze-drying case 10 and the cold trap, vacuum pump and the inside intercommunication of freeze-drying case 10, the vacuum pump to the inside evacuation of freeze-drying case 10.

The freeze-drying box 10, the cold trap and the vacuum pump all adopt the prior art.

The cold trap and the vacuum pump in this implementation are arranged on the same side of the freeze-drying box 10, so that the overhaul is convenient.

Also comprises a fixed disc 20, a rotary disc 22, a first cylinder 30 and a second cylinder 40.

As shown in fig. 1, the freeze drying box 10 is cylindrical, a feed opening 13 is arranged at the top of the freeze drying box 10, the feed opening 13 is positioned right above the edge of a rotating disc 22, and a discharge valve 11 is arranged at the bottom of the freeze drying box 10; a fixed disc 20 is fixed inside the freeze-drying box 10, the upper end of the fixed disc 20 is rotatably connected with a rotary disc 22, the fixed disc 20 divides the freeze-drying box 10 into a first chamber 101 positioned above and a second chamber 102 positioned below, an air hole 23 with the axis vertical to the side wall of the rotary disc 22 is formed in the rotary disc 22, a cavity 21 is formed between the fixed disc 20 and the rotary disc 22, and the air hole 23 is communicated with the inside of the cavity 21; the lower end of the rotary disc 22 is provided with an automatic valve 25; the rotary disc 22 is driven by a motor 29, the motor 29 is fixed below the freeze-drying box 10, an output shaft of the motor 29 is arranged vertically upwards, a rotating shaft 28 is fixed on the output shaft of the motor 29, and the rotating shaft 28 penetrates through the bottom plate of the freeze-drying box 10 and is connected with the freeze-drying box 10 in a rotating and sealing manner; the upper end of pivot 28 is fixed with hollow fixed column through fixed plate 27, has seted up discharge gate 26 on the lateral wall of fixed column, and the fixed cover in the periphery of automatic valve 25 in the upper end of fixed column is established, and the bottom of fixed disk 20 and carousel 22 is run through to the upper end of fixed column, and the lateral wall and the fixed disk 20 of the upper end of fixed column rotate sealing connection, and the lateral wall and the carousel 22 of the upper end of fixed column are fixed.

The motor 29 intermittently rotates, the structure that the motor 29 intermittently rotates is the prior art, the motor 29 intermittently drives the rotating shaft 28 to rotate, the rotating shaft 28 drives the rotating disc 22 to rotate through the fixed column, when the rotating disc 22 rotates, fruits move to the edge of the rotating disc 22 under the action of centrifugal force, and when the rotating disc 22 stops rotating, the fruits move to the middle of the rotating disc 22 under the action of gravity; so that the fruits continuously move in the rotary disc 22, the fruits are uniformly heated, the uniform drying of the fruits is realized, and the quality of the dried fruits is improved; and the rotation of the rotary disc 22 can drive the circulation of the water vapor inside the freeze drying box 10, thereby improving the drying speed.

In the rotating process of the rotating disc 22, as the drying is carried out, the weight of the dried fruit is gradually reduced, the centrifugal force applied to the dried fruit is small, the dried fruit is located in the center of the rotating disc 22, if the feeding valve is opened at the moment, the dried fruit and the non-dried fruit are mixed together by adding new fruit to the rotating disc 22, therefore, the air is blown into the cavity 21 firstly, the dried fruit is blown by the air flow due to the light weight and is suspended right above the automatic valve 25, the automatic valve 25 is opened, after the air source stops blowing, the suspended fruit falls into the fixed column through the automatic valve 25 downwards under the action of gravity, the fixed column rotates to enable the fruit to fall into the second cavity 102 under the action of the centrifugal force, then the automatic valve 25 is closed, the centrifugal force applied to the newly added fruit due to the large weight is large, the newly added fruit is located at the edge of the rotating disc 22, the dried fruit is not contacted with the newly added fruit, so that the dried fruit can be separated out independently. In the prior art, the dried fruit must be discharged and new fruit must be added, but in the embodiment, the discharge of the dried fruit can be realized while the new fruit is added, and the newly added fruit and the dried fruit cannot be mixed together.

As shown in fig. 1, 4 rectangular plate-shaped paddles 24 are uniformly distributed on the upper end of the rotary disc 22 along the radial circumference of the rotary disc 22.

The rotating disc 22 drives the blades 24 to rotate in the rotating process to accelerate air convection, so that on one hand, the vaporization of moisture in the fruits can be accelerated, and the drying rate is improved; on the other hand, the flow rate of the gas entering the cold trap can be accelerated by opening the isolation valve 12, and the front end of the cooling coil is prevented from being greatly frozen and even blocked.

As shown in fig. 1, a first cylinder 30 with an axis arranged along a vertical direction is fixed on the freeze-drying box 10, the first cylinder 30 is cylindrical, a first piston 31 is connected in the first cylinder 30 in a sliding manner, a one-way air inlet valve 32 and a one-way air outlet valve 33 are fixed at the lower end of the first cylinder 30, the one-way air outlet valve 33 is communicated with the inside of the cavity 21 between the fixed disc 20 and the rotating disc 22 through an air blowing pipe 36, and a first piston rod 34 arranged along the vertical direction is fixed at the upper end of the first piston 31; the periphery of the first cylinder body 30 is fixedly sleeved with a second cylinder body 40, the inside of the second cylinder body 40 is connected with an annular piston 41 in a sliding manner, the bottom of the second cylinder body 40 is opened, and the lower part of the side wall of the second cylinder body 40 is communicated with the feed inlet 13 through a pipeline; a second piston rod 42 is fixed on the upper end surface of the annular piston 41; the upper ends of the first piston rod 34 and the second piston rod 42 are fixed by a connecting rod 35, a hydraulic cylinder 50 fixed on the freeze-drying box 10 is arranged above the connecting rod 35, a telescopic shaft 51 of the hydraulic cylinder is arranged vertically downwards, the connecting rod 35 is fixed at the lower end of the telescopic shaft 51 of the hydraulic cylinder, and the connecting rod 35 can reciprocate up and down under the drive of the hydraulic cylinder 50.

The second cylinder 40 is used for storing fruits and serving as a charging valve, the part of the inside of the second cylinder 40 above the annular piston 41 is used for containing fruits to be dried, and the first cylinder 30 is used for blowing air into the cavity 21 inside the freeze-drying box 10; when the telescopic shaft 51 of the hydraulic cylinder extends downwards, the telescopic shaft of the hydraulic cylinder 50 drives the first piston rod 34 and the second piston rod 42 to move downwards through the connecting rod 35, so as to drive the first piston 31 and the annular piston 41 to move downwards, the one-way air inlet valve 32 on the first cylinder 30 is closed, the one-way air outlet valve 33 on the first cylinder 30 is opened, and high-speed flowing air discharged from the inside of the first cylinder 30 is discharged into the cavity 21 between the fixed disc 20 and the rotary disc 22 through the air blowing pipe 36 so that the fruit is suspended right above the automatic valve 25; when the first piston 31 and the annular piston 41 move to the lower extreme position, the dried fruit drops into the second chamber 102 through the automatic valve 25, and the fruit to be dried above the annular piston 41 automatically enters the rotary plate 22 through the pipeline and the feeding port 13 under the vacuum force inside the freeze drying box 10, so that the automatic feeding is realized.

When the telescopic shaft 51 of the hydraulic cylinder is contracted upwards, the telescopic shaft 51 of the hydraulic cylinder drives the first piston rod 34 and the second piston rod 42 to move upwards through the connecting rod 35, so that the first piston 31 and the annular piston 41 are driven to move upwards, the one-way air inlet valve 32 on the first cylinder 30 is opened, the one-way air outlet valve 33 on the first cylinder 30 is closed, and the inside of the first cylinder 30 inhales; when the annular piston 41 moves, the fruit on the annular piston 41 is limited in the second cylinder 40, so that the feeding is automatically stopped.

The carminative in-process of first cylinder body 30, the material in the second cylinder body 40 can not get into in the freeze-drying case 10, and after the completion of first cylinder body 30 exhaust, the fruit in the second cylinder body 40 just gets into in the freeze-drying case 10 to drop to the below of automatic valve 25 after the suspension of the inside dry fruit of freeze-drying case 10, wait dry fruit automatic feed when the dry fruit that accomplishes drops.

In order to realize automatic control, the hydraulic cylinder 50 and the automatic valve 25 in the embodiment are electrically connected with the same controller, when the telescopic shaft 51 of the hydraulic cylinder extends, the controller controls the automatic valve 25 to be opened, and when the telescopic shaft 51 of the hydraulic cylinder moves to the lower limit position, the controller controls the automatic valve 25 to be closed after delaying for 5 seconds; the automatic control is realized through the controller, in the process of exhausting the first cylinder body 30, fruits on the annular piston 41 cannot enter the freeze-drying box 10, after the first cylinder body 30 stops blowing, dried materials automatically fall through the automatic valve 25 under the self gravity, meanwhile, materials in the second cylinder body 40 above the annular piston 41 can enter the freeze-drying box 10 through the feeding port 13 and a pipeline, and the second cylinder body 40 automatically feeds materials to the rotary disc 22; after the controller controls the telescopic shaft 51 of the hydraulic cylinder to move to the lower limit position for 5 seconds, the telescopic shaft 51 of the hydraulic cylinder starts to contract, the automatic valve 25 is closed, the annular piston 41 moves upwards, and the second cylinder 40 does not feed into the freeze-drying box 10 any more.

In order to make the fruits in the second cylinder 40 smoothly drop into the freeze drying box 10, as shown in fig. 1, the pipeline connecting the second cylinder 40 and the feed opening 13 is set as a 90-degree elbow, and the lower end surface of the joint of the horizontal end and the vertical end of the elbow is set as an inclined surface

The specific implementation process is as follows:

the first step is as follows: in the initial state, the vacuum pump is not operated, and the portion of the second cylinder 40 above the annular piston 41 is filled with the fruit to be dried.

The second step is that: starting the hydraulic cylinder 50, extending the telescopic shaft 51 of the hydraulic cylinder, moving the first piston 31 and the annular piston 41 downwards, blowing air into the cavity 21 from the interior of the first cylinder 30, stopping blowing air into the cavity 21 from the interior of the first cylinder 30 when the first piston 31 and the annular piston 41 move to the lower limit position, opening the automatic valve 25, dropping the fruit in the second cylinder 40 onto the turntable 22 in the freeze-drying box 10 under the self-gravity, and controlling the telescopic shaft 51 of the hydraulic cylinder to contract after 5 seconds and controlling the automatic valve 25 to close after 5 seconds by the controller; the telescopic shaft 51 of the hydraulic cylinder moves upwards, the second cylinder body 40 stops blanking, the first cylinder body 30 stores air, and the telescopic shaft 51 of the hydraulic cylinder stops working after moving to the upper limit position.

The third step: the fruit to be dried is pre-frozen by the freeze-drying box 10, and the motor 29 does not work in the pre-freezing process.

The fourth step: after the prefreezing finishes, the vacuum pump begins work, utilize freeze-drying case 10 to carry out the freeze-drying to fruit, starter motor 29 simultaneously, 29 intermittent type nature rotations of motor can stir fruit, make the even freeze-drying of fruit to with higher speed the freeze-dried speed of fruit, carousel 22 drives the paddle 24 simultaneously and rotates, stirs the inside gas of freeze-drying case 10, opens isolation valve 12 after, can accelerate gaseous velocity of flow, avoids freezing coil's front end to freeze.

After the fruit is freeze-dried, repeating the second step, wherein the rotating disc 22 rotates, the dried fruit is positioned in the middle of the rotating disc 22 under the action of centrifugal force due to smaller mass, the dried fruit is blown up and suspended right above the automatic valve 25 by blowing air through the first cylinder 30, and after the air blowing of the first cylinder 30 is stopped, the dried fruit falls down into the second chamber 102 under the self-gravity; when stopping blowing, the fruit in the second cylinder body 40 gets into on the carousel 22 from the border of carousel 22 through charge door 13, the fruit lasts to be located the border of carousel 22 under the effect of centrifugal force, can not reach the middle part of carousel 22, consequently the fruit of newly adding can not contact with the dried fruit of accomplishing and can not drop from automatic valve 25, after 5 seconds that stops blowing, the telescopic shaft 51 shrink of pneumatic cylinder, automatic valve 25 closes, the dried fruit of after the drying discharges and accomplishes, the circular type piston 41 upward movement makes the second cylinder body 40 stop to the inside reinforced of freeze-drying case 10 simultaneously.

And repeating the third step, the fourth step and the first step in sequence, and continuously circulating the first step to the fourth step to realize batch drying of the dried fruits. The dried fruit is stored in the second chamber 102, certain low temperature and vacuum degree can be kept in the second chamber 102, the freeze-drying effect of the dried fruit can be enhanced, and after the dried fruit in the second chamber 102 is stored fully, the discharge valve 11 is opened, and the freeze-dried fruit can be stored in the container.

Because the passage inside the automatic valve 25 is limited when the automatic valve 25 is opened, the dried fruits cannot all pass through the automatic valve 25 instantly in the falling process, and if new fruits are directly added to the rotary disc 22, the new fruits can be dry-mixed with the fruits, so that the dried fruits in the freeze-drying box 10 in the prior art must be discharged after freeze-drying is completed and then new fruits are added into the freeze-drying box 10, in the embodiment, the dried fruits are blown by blowing high-speed flowing gas through the first cylinder 30 to separate the dried fruits from the rotary disc 22, then the dried fruits fall under the self gravity, meanwhile, the second cylinder 40 automatically adds the fruits to the rotary disc 22, the new fruits are positioned at the edge of the rotary disc 22 under the action of centrifugal force, therefore, the new fruits cannot be contacted with the dried fruits or discharged from the automatic valve 25, and the freeze-drying box 10 automatically starts to add the new fruits while the dried fruits begin to be discharged, the two operations are carried out synchronously, so that the operation time is saved, and the freeze-drying efficiency is improved.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a freeze-drying equipment based on integral side structure, includes freeze-drying case, cold trap and vacuum pump, be provided with the isolating valve between freeze-drying case and the cold trap, the vacuum pump is to the inside evacuation of freeze-drying incasement portion, its characterized in that: the interior of the freeze-drying box is rotatably connected with a rotary disc, the rotary disc intermittently rotates under the driving of a driving mechanism, the lower end of the rotary disc is provided with an automatic valve, and the top and the bottom of the freeze-drying box are respectively provided with a feeding valve and a discharging valve; a fixed disc is fixed inside the freeze-drying box, the rotary disc is rotatably connected to the upper end of the fixed disc, an air hole with the axis vertical to the side wall of the rotary disc is formed in the rotary disc, a cavity is formed between the fixed disc and the rotary disc and communicated with the inside of the cavity, the cavity is connected with an air source through a pipeline, and the air source intermittently blows air to the inside of the cavity; the feeding valve is positioned right above the edge of the rotary disc; the air source comprises a first cylinder body which is fixed on the freeze-drying box and the axis of which is arranged along the vertical direction, a first piston is connected in the first cylinder body in a sliding way, the lower end of the first cylinder body is fixedly provided with a one-way air inlet valve and a one-way air outlet valve, the one-way air outlet valve is communicated with the inside of the cavity through an air blowing pipe, and the upper end of the first piston is fixedly provided with a first piston rod which is arranged along the vertical direction; the periphery of the first cylinder body is fixedly sleeved with a second cylinder body, the inside of the second cylinder body is connected with an annular piston in a sliding manner, and the top and the bottom of the second cylinder body are both provided with openings; the lower part of the side wall of the second cylinder body is communicated with the feeding valve through a pipeline; a second piston rod is fixed on the upper end surface of the annular piston; the upper ends of the first piston rod and the second piston rod are fixed through a connecting rod, and the connecting rod can slide up and down in a reciprocating manner under the driving of a hydraulic cylinder; the air source, the automatic valve and the feeding valve are electrically connected with the same controller, when the air source blows, the controller controls the automatic valve to be opened and controls the feeding valve to be closed, and after the air source stops blowing, the controller controls the feeding valve to be opened and controls the automatic valve and the feeding valve to be closed after delaying for 3-5 seconds.

2. The freeze-drying apparatus based on integral side-mounted structure as claimed in claim 1, wherein: the upper end of carousel has the paddle along the radial circumference evenly distributed of carousel.

3. The freeze-drying apparatus based on integral side-mounted structure as claimed in claim 1, wherein: the driving mechanism comprises a motor fixed below the freeze-drying box, an output shaft of the motor is vertically arranged upwards, a rotating shaft is fixed on the output shaft of the motor, and the rotating shaft penetrates through a bottom plate of the freeze-drying box and is in rotary sealing connection with the freeze-drying box; the upper end of pivot is fixed with hollow fixed column, has seted up the discharge gate on the lateral wall of fixed column, and the fixed cover in the upper end of fixed column is established in the periphery of automatic valve.