CN116473260B - Low-temperature steam vacuum conditioning equipment for frozen food - Google Patents
Low-temperature steam vacuum conditioning equipment for frozen food Download PDFInfo
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- CN116473260B CN116473260B CN202310229447.5A CN202310229447A CN116473260B CN 116473260 B CN116473260 B CN 116473260B CN 202310229447 A CN202310229447 A CN 202310229447A CN 116473260 B CN116473260 B CN 116473260B
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- conditioning
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- 230000003750 conditioning effect Effects 0.000 title claims abstract description 61
- 235000013611 frozen food Nutrition 0.000 title claims abstract description 22
- 238000004108 freeze drying Methods 0.000 claims abstract description 84
- 238000010438 heat treatment Methods 0.000 claims abstract description 41
- 238000005192 partition Methods 0.000 claims abstract description 33
- 238000009413 insulation Methods 0.000 claims abstract description 5
- 238000009826 distribution Methods 0.000 claims description 49
- 239000000463 material Substances 0.000 claims description 44
- 230000005540 biological transmission Effects 0.000 claims description 32
- 238000013016 damping Methods 0.000 claims description 16
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 18
- 235000013305 food Nutrition 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 5
- 230000002349 favourable effect Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 16
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 229920006395 saturated elastomer Polymers 0.000 description 8
- 239000002245 particle Substances 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 3
- 239000008236 heating water Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000009777 vacuum freeze-drying Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 238000004659 sterilization and disinfection Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 235000013622 meat product Nutrition 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23P—SHAPING OR WORKING OF FOODSTUFFS, NOT FULLY COVERED BY A SINGLE OTHER SUBCLASS
- A23P30/00—Shaping or working of foodstuffs characterised by the process or apparatus
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L13/00—Meat products; Meat meal; Preparation or treatment thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
- Y02P60/85—Food storage or conservation, e.g. cooling or drying
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Drying Of Solid Materials (AREA)
- Freezing, Cooling And Drying Of Foods (AREA)
Abstract
The invention belongs to the field of cold chain food production equipment, and provides low-temperature steam vacuum conditioning equipment for frozen foods, which comprises a freeze-drying line, a conditioning line and a vacuum unit, wherein a plurality of freeze-drying bins are arranged on the freeze-drying line, a plurality of conditioning bins, a steam station and a control valve group are arranged on the conditioning line, a heating tank and a heat exchanger are also arranged on the conditioning line, a heat source supply end of the heat exchanger is connected with the steam station, a heat source output end of the heating tank is connected with the conditioning bins and is used for inputting low-temperature steam into the conditioning bins, the freeze-drying bins and the conditioning bins are distributed on two sides of a partition wall in pairs, a heat insulation filling layer is arranged in the partition wall, the freeze-drying bins and the conditioning bins are arranged on two sides of the partition wall and are mutually communicated, and an automatic valve device for simultaneously controlling two pairs of freeze-drying bins and the conditioning bins is arranged in the partition wall. The device has reasonable design, higher production quality and better production continuity, is favorable for improving the production efficiency and is suitable for large-scale popularization.
Description
Technical Field
The invention belongs to the field of cold chain food production equipment, and relates to low-temperature steam vacuum conditioning equipment for frozen foods.
Background
In order to consider the mouthfeel of products such as meat products that are freeze-dried in vacuum, quantitative conditioning is required after the vacuum freeze-drying process is completed. Vacuum freeze-drying is a liquid-solid-gas process. The vacuum freeze drying process uses a freeze drying bin, a supporting system for supporting a material frame and a guiding system for guiding the material frame are arranged in the freeze drying bin, a vacuum unit vacuumizes the freeze drying bin to take away a part of water, on the other hand, when the material is frozen, the water contained in certain molecules is discharged to the surface of the material to freeze, after the material meets the freezing requirement, the heating system heats and dries the material, and the water contained in the material is brought to a freezing collection box to freeze through vacuumizing, so that the material freeze drying requirement is met. In the freeze-drying process, the liquid bridge between solute particles is frozen into a solid bridge, the relative position between two particles is fixed, and the surface tension of the gas-liquid interface between the two particles does not exist. As the solvent sublimates, the solid bridge continues to decrease, but the relative position between the two particles does not change any more until the solid bridge completely disappears. The product obtained by freeze-drying is called lyophilisate and the process is called lyophilization. The vacuum conditioning is realized according to the principle that saturated steam is low in temperature and easy to diffuse in a vacuum environment according to a comparison table of vacuum and saturated temperature.
The general use of the process of resurgence is vacuum resurgence storehouse, and ordinary resurgence is accomplished in the resurgence workshop, and after the freeze-dried material goes out of the storehouse, pushes the material dolly into the resurgence workshop, lets in steam to the resurgence workshop, after 10-12h, the resurgence finishes. Because the resurgence flow of the resurgence workshop is carried out under normal pressure, the resurgence speed is slow, the resurgence time is usually 10-12h, the resurgence is uneven, and the production speed is affected; and because the high-temperature steam is introduced, the materials can be discolored, and the quality is affected. Secondly, because the freeze-drying bin and the moisture regain bin are arranged in different workshops, a longer track frame system needs to be built in the process of transferring materials, and the working strength and the production period are directly influenced.
Disclosure of Invention
Aiming at the technical problems of the food freeze-drying and moisture regaining equipment, the invention provides low-temperature steam vacuum moisture regaining equipment for frozen foods, which has reasonable design, higher production quality and better production continuity and is beneficial to improving the production efficiency.
In order to achieve the aim, the low-temperature steam vacuum conditioning equipment for frozen foods comprises a freeze-drying line, a conditioning line and a vacuum unit, wherein a plurality of freeze-drying bins are arranged on the freeze-drying line, a plurality of conditioning bins, a steam station and a control valve group are arranged on the conditioning line, the vacuum unit is used for vacuumizing the freeze-drying bins and the conditioning bins, a heating tank is further arranged on the conditioning line, a heat exchanger and water are arranged in the heating tank, a heat source supply end of the heat exchanger is connected with the steam station, the steam station is used for heating water and enabling low-temperature saturated steam to be generated in the heating tank, and a heat source output end of the heating tank is connected with the conditioning bins and is used for inputting the low-temperature steam into the conditioning bins; the freeze-drying bin and the damping bin are distributed on two sides of the partition wall in pairs, a heat insulation filling layer is arranged in the partition wall, a plurality of countersunk holes distributed along the length direction of the partition wall are formed in the partition wall, two sides of each countersunk hole are respectively connected with the freeze-drying bin and the damping bin in a flange mode and are mutually communicated, automatic valve devices for simultaneously controlling the two pairs of freeze-drying bins and the damping bin are arranged in the partition wall, and automatic bin changing devices for transferring materials are arranged in the freeze-drying bin and the damping bin.
Preferably, the automatic valve device comprises a triangular valve plate, two normally closed parts and one normally open part which are distributed in a triangular shape are arranged on the valve plate, the normally closed parts and the normally open parts correspond to the countersunk holes, a gear transmission assembly is arranged at the center of the valve plate, a gear motor positioned at the outer part of the partition wall is arranged at the power input end of the gear transmission assembly, and the gear motor is fixedly connected with the partition wall through a mounting seat.
Preferably, the gear transmission assembly comprises a transmission shaft, a shaft plate is arranged on the transmission shaft, two external gears connected with the transmission shaft are arranged on two sides of the shaft plate, an annular gear meshed with the external gears is arranged on the outer sides of the external gears, the external gears are connected with a valve plate in a transmission mode, supporting holes corresponding to the mounting seats are formed in the partition wall, the outer peripheral surfaces of the external gears are matched with the supporting holes, and supporting shaft sleeves used for being matched with the shaft plate in a rolling mode are arranged in the valve plate.
Preferably, the top of the freeze drying bin and the top of the moisture regain bin are respectively provided with a gas distribution device communicated with the inside of the freeze drying bin and the top of the moisture regain bin, and the gas distribution devices are used for being connected with a vacuum unit and a heating tank.
Preferably, the air distribution device comprises a herringbone air distribution block, the bottom of the air distribution block is a curved surface and is matched with the freeze-drying bin and the moisture regain bin, a plurality of pairs of air distribution holes are formed in the air distribution block, the central track of each air distribution hole is L-shaped, the tail end of each air distribution hole is communicated with the freeze-drying bin and the moisture regain bin, and the head end of each air distribution hole is connected with the vacuum unit and the heating tank through pipelines.
Preferably, the automatic bin replacing device comprises a screw motor, a screw rod horizontally penetrating through a gas distribution block is arranged at the power output end of the screw rod motor, a screw rod sliding block is arranged on the screw rod, a reverse T-shaped bar is arranged at the bottom of the screw rod sliding block, a lever is arranged at one end of the reverse T-shaped bar, the screw rod sliding block, the reverse T-shaped bar and the lever are movably matched with sliding grooves formed in the tops of the freeze drying bin and the moisture regain bin, a pressure spring plate which is in contact fit with the screw rod sliding block and is connected with the reverse T-shaped bar is arranged on one side of the lever, a traction rope is arranged on the lever, a pulley block is arranged on the transmission side of the traction rope, a traction motor is arranged at the driving end of the pulley block, and the traction motor is arranged at the top of the gas distribution block.
Preferably, the pulley block comprises a first pulley arranged on the air distribution block, a pulley groove is formed in the side face of the screw rod sliding block, a second pulley is arranged in the pulley groove, and a third pulley is arranged at the other end of the inverted T-bar.
Preferably, the lever comprises a connecting part, a sliding contact groove matched with the pressure spring plate is formed in the inner side of the connecting part, and an L-shaped hooking part is arranged at the bottom end of the connecting part.
Preferably, the both sides of partition wall are provided with the support that is used for supporting vacuum unit and heating jar, the support includes a door type frame, the both sides of door type frame all are provided with the personnel ladder, be provided with the backup pad that is located freeze-drying storehouse and moisture regain storehouse top on the door type frame, the top of door type frame is provided with the H-beam that is located the backup pad top.
Preferably, the control valve group comprises a high-temperature steam input stop valve and a steam solenoid valve which are arranged on the input side of the heat exchanger, and a steam drain valve and a high-temperature steam output stop valve which are arranged on the output side of the heat exchanger, and a low-temperature steam input stop valve and a pneumatic flange ball valve are arranged on the heat source output side of the heating tank.
Compared with the prior art, the invention has the advantages and positive effects that:
1. According to the low-temperature steam vacuum conditioning equipment for frozen foods, steam of the steam station enters the heat exchanger to heat water in the heating tank, the low-temperature steam generated by heating in the heating tank is introduced into the conditioning bin, the vacuum unit controls the vacuum degree in the conditioning bin, so that the freeze-dried materials are subjected to low-temperature vacuum conditioning in the conditioning bin, and the quality of the food materials is improved.
2. The low-temperature steam vacuum damping equipment for frozen foods provided by the invention has the advantages that the automatic valve device can control the on-off of the two pairs of freeze-drying bins and the damping bins, and the automatic bin changing device is used for transferring the bracket for containing materials, so that the freeze-dried materials can be directly transferred from the freeze-drying bins to the damping bins, the conveying length of the materials is shortened, the working strength of a production line is reduced, and the production efficiency is improved.
The device has reasonable design, higher production quality and better production continuity, is favorable for improving the production efficiency and is suitable for large-scale popularization.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, 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 view of a low temperature steam vacuum conditioning apparatus for frozen food provided in the examples;
FIG. 2 is an isometric view of a part of the construction of a low temperature steam vacuum conditioning apparatus for frozen foods;
FIG. 3 is an isometric view of a portion of the structure of a low temperature steam vacuum conditioning apparatus for frozen foods in another direction;
FIG. 4 is a side view showing a part of the construction of a low-temperature steam vacuum conditioning apparatus for frozen foods;
FIG. 5 is an enlarged schematic view of the structure A of FIG. 3;
FIG. 6 is a front view showing a partial structure of a low-temperature steam vacuum conditioning apparatus for frozen foods;
FIG. 7 is a side view of the lyophilization and conditioning chambers;
FIG. 8 is a cross-sectional view in E-E of a low temperature steam vacuum conditioning apparatus for frozen food;
FIG. 9 is an enlarged schematic view of the B structure of FIG. 8;
FIG. 10 is an isometric view of an automatic valve device;
FIG. 11 is a front view of an automatic valve device;
Fig. 12 is a front view of the cartridge magazine assembly;
Fig. 13 is an isometric view of the automatic cartridge changing device;
FIG. 14 is an isometric view of a gear assembly and support sleeve;
in the above figures:
1. A freeze-dried line; 11. a freeze-drying bin;
2. a moisture regain line; 21. a moisture regain bin; 22. a steam station; 23. a control valve group; 231. high-temperature steam is input into a stop valve; 232. a steam solenoid valve; 233. a steam trap; 234. a high-temperature steam output stop valve; 235. low-temperature steam is input into a stop valve; 236. pneumatic flange ball valve; 24. a heating tank; 25. a heat exchanger;
3. a vacuum unit;
4. Partition walls; 41. a countersunk hole; 42. a thermal insulation filling layer;
5. an automatic valve device; 51. a valve plate; 511. a normally closed portion; 512. a normally open portion; 52. a gear drive assembly; 521. a transmission shaft; 522. a shaft plate; 523. an external gear; 524. an inner gear ring; 53. a speed reducing motor; 54. a mounting base; 55. a support shaft sleeve;
6. Automatic bin changing device; 61. a lead screw motor; 62. a screw rod; 63. a screw rod sliding block; 64. an inverted T-bar; 65. a lever; 651. a connection part; 652. a hooking part; 653. a sliding contact groove; 66. a chute; 67. a pressure spring plate; 68. a traction rope; 69. pulley block; 691. a first pulley; 692. a second pulley; 693. a third pulley; 610. a traction motor;
7. A bracket; 71. a door-shaped frame; 72. a step; 73. a support plate; 74. an H-beam;
8. A gas distribution device; 81. a gas distribution block; 82. and air distribution holes.
Detailed Description
In order that the above objects, features and advantages of the application will be more clearly understood, a further description of the application will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other. For convenience of description, the words "upper", "lower", "left" and "right" are merely used herein to denote a correspondence with the upper, lower, left, and right directions of the drawing figures, and are not limiting on the structure.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced otherwise than as described herein, and therefore the present invention is not limited to the specific embodiments of the disclosure that follow.
The embodiment of the invention is shown in fig. 1-14, the low-temperature steam vacuum conditioning equipment for frozen foods provided by the invention comprises a freeze-drying line 1, a conditioning line 2 and a vacuum unit 3, wherein a plurality of freeze-drying bins 11 are arranged on the freeze-drying line 1, a plurality of conditioning bins 21, a steam station 22 and a control valve group 23 are arranged on the conditioning line 2, a supporting system and a guiding system which are used for being matched with a material rack for bearing materials are arranged in the conditioning bins 21 and 11, the vacuum unit 3 is used for vacuumizing the freeze-drying bins 11 and the conditioning bins 21, a heating tank 24 is also arranged on the conditioning line 2, a heat exchanger 25 and water are arranged in the heating tank 24, a water source station is arranged at the water supply end of the heating tank 24, the heat source supply end of the heat exchanger 25 is connected with the steam station 22, the steam station 22 is used for heating water and generating low-temperature saturated steam in the heating tank 24, and the heat source output end of the heating tank 24 is connected with the conditioning bins 21 and is used for inputting low-temperature steam into the conditioning bins 21. The steam of the steam station 22 enters the heat exchanger 25 to heat the water in the heating tank 24, low-temperature steam generated by heating in the heating tank 24 is introduced into the moisture regain bin 21, the vacuum unit 3 controls the vacuum degree in the moisture regain bin 21, so that the freeze-dried material realizes low-temperature vacuum moisture regain in the moisture regain bin 21, and the quality of the food material is improved.
In order to accelerate the conditioning speed and ensure uniform conditioning, the control valve group 23 provided by the invention comprises a high-temperature steam input stop valve 231 and a steam electromagnetic valve 232 which are arranged on the input side of the heat exchanger 25, a steam drain valve 233 and a high-temperature steam output stop valve 234 which are arranged on the output side of the heat exchanger 25, a low-temperature steam input stop valve 235 and a pneumatic flange ball valve 236 which are arranged on the heat source output side of the heating tank 24, and a water electromagnetic valve and a water stop valve which are arranged on the supply route of the water source station to the heating tank 24. Specifically, the freeze-dried material is pushed into the moisture regaining chamber 21, the vacuum unit 3 is started to enable the vacuum degree in the moisture regaining chamber 21 to reach about 80Pa, and the temperature of saturated steam is 60 ℃ under the vacuum degree. Opening a water solenoid valve and a water stop valve, and flushing purified water into the heating tank 24; opening a high-temperature steam input stop valve 231 and a steam electromagnetic valve 232, introducing steam into the spiral tube type heat exchanger 25 in the heating tank 24, and heating water in the heating tank 24 to generate low-temperature saturated steam at 60 ℃; the steam is changed into condensed water through heat exchange and is discharged from the steam drain valve 233 and the high-temperature steam output stop valve 234; the generated low-temperature steam enters the damping bin 21 through the low-temperature steam input stop valve 235 and the pneumatic flange ball valve 236, and under the vacuum condition, the steam is uniformly diffused, the damping speed of the materials is high, and the damping can be finished after 3 hours. In this way, the device is used for conditioning in a vacuum environment and is low-temperature steam, so that the conditioning speed is greatly increased, the color of the material is not changed, and the quality of the food material is guaranteed. After the vacuum conditioning is finished, all valves are closed, the vacuum in the conditioning bin 21 is released, and the materials are pushed out of the conditioning bin 21. The moisture regain house 21 needs to be sterilized after a period of use, and steam sterilization is adopted. The pneumatic flange ball valve 236 and the low-temperature steam input stop valve 235 are started to charge saturated steam into the moisture regain bin 21 and maintain the saturated steam for a period of time so as to achieve the aim of high-temperature sterilization.
Further, the freeze-drying bin 11 and the moisture regain bin 21 are distributed on two sides of the partition wall 4 in pairs, a heat insulation filling layer 42 is arranged in the partition wall 4, a plurality of counter sunk holes 41 distributed along the length direction of the partition wall 4 are formed in the partition wall 4, two sides of the counter sunk holes 41 are respectively connected with the freeze-drying bin 11 and the moisture regain bin 21 in a flange mode and are mutually communicated, an automatic valve device 5 for simultaneously controlling the two pairs of freeze-drying bin 11 and the moisture regain bin 21 is arranged in the partition wall 4, and an automatic bin changing device 6 for transferring materials is arranged in the freeze-drying bin 11 and the moisture regain bin 21. Wherein, the counter bore 41 is connected with flanges at the end parts of the freeze-drying bin 11 and the dampening bin 21 in a sealing way, and the minimum diameter of the counter bore 41 is larger than that of a material rack for bearing materials; the automatic valve device 5 can control the on-off of the two pairs of freeze-drying bins 11 and the moisture regaining bins 21, after the freeze-drying of the materials in the freeze-drying bins 11 is finished and the vacuum degree of the moisture regaining bins 21 is regulated, the automatic valve device 5 controls the corresponding space between the freeze-drying bins 11 and the moisture regaining bins 21 to be communicated, and then the automatic bin changing device 6 transfers the material rack for containing the materials, so that the freeze-dried materials can be directly transferred from the freeze-drying bins 11 to the moisture regaining bins 21, and then the automatic valve device 5 closes the through-break of the freeze-drying bins 11 and the moisture regaining bins 21, thereby not only shortening the conveying length of the materials, but also reducing the working strength of the assembly line and being beneficial to improving the production efficiency.
In order to improve the production efficiency of the device, the automatic valve device 5 provided by the invention simultaneously controls two pairs of freeze drying bins 11 and a damping bin 21. Further, the automatic valve device 5 comprises a inverted-Y-shaped valve plate 51, two normally closed parts 511 and a normally open part 512 which are distributed in an inverted-Y shape are arranged on the valve plate 51, the normally closed parts 511 and the normally open parts 512 correspond to the counter bores 41, a gear transmission assembly 52 is arranged in the center of the valve plate 51, a gear motor 53 positioned outside the partition wall 4 is arranged at the power input end of the gear transmission assembly 52, and the gear motor 53 is fixedly connected with the partition wall 4 through a mounting seat 54. Wherein the mounting seat 54 is used for mounting the gear motor 53 and ensuring the stability of the gear motor 53 on the partition wall 4; the gear motor 53 is used for driving the gear transmission assembly 52, the gear transmission assembly 52 drives the valve plate 51 to rotate, the normally closed part 511 is opposite to the communication node of the freeze-drying bin 11 and the moisture regain bin 21, so that the normally closed part 511 can play a role in separating the two, and when the valve plate 51 rotates continuously, the normally open part 512 is opposite to the communication node of the freeze-drying bin 11 and the moisture regain bin 21, so that the two pairs of freeze-drying bin 11 and the moisture regain bin 21 can keep respective freeze-drying functions and moisture regain functions under the condition that one pair of freeze-drying bin 11 and moisture regain bin 21 keep a communication relationship, and the other pair of freeze-drying bin 11 and moisture regain bin 21 keep a closing state, and the two pairs of freeze-drying bin 11 and moisture regain bin 21 can respectively opposite to the two normally closed parts 511 at the same time.
In order to improve the action efficiency of the automatic valve device 5, the gear transmission assembly 52 provided by the invention comprises a transmission shaft 521, a shaft plate 522 is arranged on the transmission shaft 521, two external gears 523 connected with the transmission shaft 521 in a transmission way are arranged on two sides of the shaft plate 522, an inner gear ring 524 meshed with the external gears 523 is arranged on the outer sides of the external gears 523, the external gears 523 are connected with the valve plate 51 in a transmission way, a supporting hole corresponding to the mounting seat 54 is arranged on the partition wall, the outer peripheral surface of the external gears 523 is matched with the supporting hole, and a supporting shaft sleeve 55 used for being in rolling fit with the shaft plate 522 is arranged in the valve plate 51. Wherein, the transmission connection mode can be key connection, and the supporting hole supports the external gear 523 together with the whole gear transmission assembly 52; the inner wall of the supporting shaft sleeve 55 is a smooth wall, and the supporting shaft sleeve and the shaft plate 522 cooperate to play a role of both bearing and balance; in addition, two sets of external gears 523 and internal gear rings 524 are arranged on two sides of the shaft plate 522 to be matched, so that a large amplitude of swing of the valve plate 51 in the rotation process can be effectively reduced, the driving performance of the gear transmission assembly 52 on the valve plate 51 is guaranteed, and the sealing performance of the freeze-drying bin 11 and the moisture regain bin 21 can be improved.
In order to improve the working performance of the freeze-drying bin 11 and the moisture regain bin 21, the top parts of the freeze-drying bin 11 and the moisture regain bin 21 are respectively provided with a gas distribution device 8 communicated with the inside of the freeze-drying bin 11 and the moisture regain bin 21, the gas distribution device 8 is used for being connected with a vacuum unit 3 and a heating tank 24, and a channel of the gas distribution device 8 communicated with the vacuum unit 3 and a channel connected with the heating tank 24 are not interfered with each other. The vacuum unit 3 can vacuumize the freeze-drying bin 11 and the moisture regaining bin 21 through the air distribution device 8, and the heating tank 24 can introduce low-temperature steam into the moisture regaining bin 21 through the air distribution device 8.
Further, the air distribution device 8 provided by the invention comprises a herringbone air distribution block 81, wherein the bottom of the air distribution block 81 is a curved surface and is matched with the freeze-drying bin 11 and the moisture regain bin 21, a plurality of pairs of air distribution holes 82 are formed in the air distribution block 81, the central track of each air distribution hole 82 is L-shaped, the tail end of each air distribution hole is communicated with the freeze-drying bin 11 and the moisture regain bin 21, the head end of one air distribution hole is connected with the vacuum unit 3 through a vacuum pipeline, and the head end of the other air distribution hole is connected with the heating tank 24 through a steam pipeline. In this way, the air distribution holes for vacuumizing and the air distribution holes for filling low-temperature steam are uniformly distributed and do not affect each other, for example, when the valve of the vacuum unit 3 is in a closed condition, the valve of the steam pipeline can be opened to provide steam to the corresponding bin; and on the contrary, under the condition that the valve on the steam pipeline is closed, the valve of the positive air unit can be opened to vacuumize the corresponding bin.
In order to improve the transfer efficiency of materials in the freeze-drying bin 11 and the moisture regain bin 21, the automatic bin changing device 6 provided by the invention comprises a screw motor 61, a screw 62 horizontally penetrating through an air distribution block is arranged at the power output end of the screw motor 61, a screw sliding block 63 is arranged on the screw 62, a reverse T-bar 64 is arranged at the bottom of the screw sliding block 63, a lever 65 is arranged at one end of the reverse T-bar 64, the screw sliding block 63, the reverse T-bar 64 and the lever 65 are in movable fit with a sliding groove 66 arranged at the top of the freeze-drying bin 11 and the moisture regain bin 21, a pressure spring plate 67 which is in contact fit with the lever 65 and is connected with the reverse T-bar 64 is arranged at one side of the lever 65, a pulley block 69 is arranged at the transmission side of the pulley block 68, a traction motor 610 is arranged at the driving end of the pulley block 69, and the traction motor 610 is arranged at the top of the air distribution block 81. The pressure spring plate 67 can lift the lever 65 in a natural state, so that the tail end of the lever 65 is not interfered with a material rack in the bin, and when the material rack needs to be transferred, the traction motor 610 drives the traction rope 68 to be tensioned, the lever 65 swings around the hinged end of the traction rope and the inverted Ding Zigang, the lever 65 and the pressure plate spring generate elastic pressure, and the tail end of the lever 65 is scratched to the material rack; the screw motor 61 drives the screw to drive the screw slide 63 to do translational motion, the screw slide 63 moves along the chute 66 together with the inverted T-bar 64 and the lever 65, and at the same time, the traction motor 610 gradually lengthens the traction rope 68 and ensures that the traction rope 68 always tightens the lever 65 until the material rack is transferred from the freeze drying bin 11 into the moisture regain bin 21. Further, the automatic bin changing device 6 on the conditioning bin 21 can drive the tail end of the lever 65 to pull the material rack to move a distance in the conditioning bin 21, so that the material rack is ensured to completely enter the conditioning bin 21.
In order to improve the driving performance of the automatic warehouse-changing device 6, the pulley block 69 provided by the invention comprises a first pulley 691 arranged on the air distribution block, a pulley groove is arranged on the side surface of the lead screw sliding block 63, a second pulley 692 is arranged in the pulley groove, and a third pulley 692 is arranged at the other end of the inverted T-bar 64. The traction rope 68 is sequentially connected with the first pulley 691, the second pulley 692 and the third pulley 693 in a winding manner, and the distribution positions of the first pulley 691, the second pulley 692 and the third pulley 693 fully consider the action requirement of the lever 65 and the position relation between the lever 65 and the inverted T-bar 64, so that the traction rope 68 effectively avoids the movable range of the lever 65, and the traction motor 610 can ensure the smoothness of driving the lever 65 by the traction rope 68 when driving the traction rope 68. The second pulley is arranged in the pulley groove to avoid friction with two sides of the chute. To ensure the pulling force of the pull-cord 68, the pull-cord 68 may be looped over the second pulley 692 or the third pulley 693 more than one turn to ensure stability of the pull-cord 68 in controlling the lever 65.
Further, the lever 65 provided by the invention comprises a connecting part 651, a sliding contact groove 653 matched with the pressure spring plate 67 is arranged on the inner side of the connecting part 651, and an L-shaped hooking part 652 is arranged at the bottom end of the connecting part 651. The connecting part 651 is of a polygonal structure, the shape design of the connecting part avoids the guide systems in the chute 66, the freeze-drying bin 11 and the dampening bin 21, the head end of the connecting part 651 is hinged with one end of the inverted T-bar 64, the other end of the connecting part 651 is connected with two symmetrically distributed traction ropes 68, and the other end of the connecting part 651 is in integral transition with the hooking part 652; the sliding contact grooves 653 on the inner side of the connecting part 651 are movably matched with the pressure spring plates 67, so that the lever 65 is always contacted with the pressure spring plates 67 and generates proper compression in the swing adjustment process, and therefore, the lever 65 and the pressure spring plates 67 can obtain good tension, and further, the working performance of the automatic bin changing device 6 is guaranteed.
In order to improve the space utilization rate of the device, considering the duty requirements of the vacuum unit 3 and the heating tank 24, the two sides of the partition wall 4 are provided with the brackets 7 for supporting the vacuum unit 3 and the heating tank 24, each bracket 7 comprises a door-shaped frame 71, both sides of each door-shaped frame 71 are provided with a step 72, each door-shaped frame 71 is provided with a supporting plate 73 positioned above the freeze drying bin 11 and the moisture regaining bin 21, and the top of each door-shaped frame 71 is provided with an H-shaped beam 74 positioned above the supporting plate 73. Wherein, the supporting plate 73 adopts a grid plate structure, the entity part of the grid plate is directly provided with the vacuum unit 3 and the heating tank 24, and the neutral position of the grid plate is used for penetrating pipelines, wires and the like; the vacuum unit 3 and the heating tank 24 are suspended on the freeze-drying bin 11 and the moisture regaining bin 21, so that the gravity centers of the freeze-drying bin 11 and the moisture regaining bin 21 are reduced, and a favorable basis is provided for transferring materials on a production line and inside the two. The design of the personnel ladder 72 facilitates the personnel to perform routine maintenance on the vacuum unit 3 and the heating tank 24.
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present invention without departing from the technical content of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. The low-temperature steam vacuum damping equipment for frozen foods comprises a freeze-drying line, a damping line and a vacuum unit, wherein a plurality of freeze-drying bins are arranged on the freeze-drying line, a plurality of damping bins, a steam station and a control valve group are arranged on the damping line, and the vacuum unit is used for vacuumizing the freeze-drying bins and the damping bins;
The freeze-drying bin and the moisture regain bin are distributed on two sides of the partition wall in pairs, a heat insulation filling layer is arranged in the partition wall, a plurality of countersunk holes distributed along the length direction of the partition wall are formed in the partition wall, two sides of each countersunk hole are respectively connected with the freeze-drying bin and the moisture regain bin in a flange mode and are communicated with each other, an automatic valve device for simultaneously controlling the two pairs of freeze-drying bins and the moisture regain bin is arranged in the partition wall, and an automatic bin changing device for transferring materials is arranged in the freeze-drying bin and the moisture regain bin;
The top parts of the freeze drying bin and the moisture regain bin are respectively provided with a gas distribution device communicated with the inside of the freeze drying bin and the moisture regain bin, and the gas distribution devices are used for being connected with a vacuum unit and a heating tank; the air distribution device comprises a herringbone air distribution block, the bottom of the air distribution block is a curved surface and is matched with the freeze-drying bin and the moisture regain bin, a plurality of pairs of air distribution holes are formed in the air distribution block, the central track of each air distribution hole is L-shaped, the tail end of each air distribution hole is communicated with the freeze-drying bin and the moisture regain bin, and the head end of each air distribution hole is connected with the vacuum unit and the heating tank through pipelines;
The automatic bin replacing device comprises a screw motor, a screw rod horizontally penetrating through an air distribution block is arranged at the power output end of the screw rod motor, a screw rod sliding block is arranged on the screw rod, an inverted T-shaped bar is arranged at the bottom of the screw rod sliding block, a lever is arranged at one end of the inverted T-shaped bar, the screw rod sliding block, the inverted T-shaped bar and the lever are in movable fit with a sliding groove arranged at the top of a freeze drying bin and a moisture regain bin, a pressure spring plate which is in contact fit with the screw rod sliding block and is connected with the inverted T-shaped bar is arranged on one side of the lever, a traction rope is arranged on the lever, a pulley block is arranged on the transmission side of the traction rope, a traction motor is arranged at the driving end of the pulley block, and the traction motor is arranged at the top of the air distribution block.
2. The low-temperature steam vacuum conditioning equipment for frozen foods according to claim 1, wherein the automatic valve device comprises a triangular valve plate, two normally closed parts and one normally open part which are distributed in a triangular shape are arranged on the valve plate, the normally closed parts and the normally open parts correspond to countersunk holes, a gear transmission assembly is arranged in the center of the valve plate, a speed reduction motor positioned outside the partition wall is arranged at the power input end of the gear transmission assembly, and the speed reduction motor is fixedly connected with the partition wall through a mounting seat.
3. The low-temperature steam vacuum conditioning equipment for frozen foods according to claim 2, wherein the gear transmission assembly comprises a transmission shaft, a shaft plate is arranged on the transmission shaft, two external gears connected with the transmission shaft in a transmission mode are arranged on two sides of the shaft plate, an annular gear meshed with the external gears is arranged on the outer sides of the external gears, the external gears are in transmission connection with a valve plate, supporting holes corresponding to mounting seats are formed in the partition wall, the outer peripheral surface of the external gears is matched with the supporting holes, and supporting shaft sleeves used for being matched with the shaft plate in a rolling mode are arranged inside the valve plate.
4. The low-temperature steam vacuum conditioning equipment for frozen foods according to claim 1, wherein the pulley block comprises a first pulley arranged on the air distribution block, a pulley groove is formed in the side face of the screw rod sliding block, a second pulley is arranged in the pulley groove, and a third pulley is arranged at the other end of the inverted T-bar.
5. The low-temperature steam vacuum conditioning equipment for frozen foods according to claim 4, wherein the lever comprises a connecting part, a sliding contact groove matched with a pressure spring plate is formed in the inner side of the connecting part, and an L-shaped hooking part is formed in the bottom end of the connecting part.
6. The low-temperature steam vacuum conditioning equipment for frozen foods according to claim 1, wherein the two sides of the partition wall are provided with brackets for supporting a vacuum unit and a heating tank, the brackets comprise door-shaped frames, both sides of the door-shaped frames are provided with ladles, the door-shaped frames are provided with supporting plates above a freeze drying bin and a conditioning bin, and the tops of the door-shaped frames are provided with H-beams above the supporting plates.
7. The low-temperature steam vacuum conditioning equipment for frozen foods according to claim 1, wherein the control valve group comprises a high-temperature steam input stop valve and a steam solenoid valve which are arranged on the input side of the heat exchanger, and a steam drain valve and a high-temperature steam output stop valve which are arranged on the output side of the heat exchanger, and the heat source output side of the heating tank is provided with a low-temperature steam input stop valve and a pneumatic flange ball valve.
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| CN202310229447.5A CN116473260B (en) | 2023-03-10 | 2023-03-10 | Low-temperature steam vacuum conditioning equipment for frozen food |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310229447.5A CN116473260B (en) | 2023-03-10 | 2023-03-10 | Low-temperature steam vacuum conditioning equipment for frozen food |
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| CN116473260B true CN116473260B (en) | 2024-06-04 |
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| CN218495631U (en) * | 2022-07-21 | 2023-02-17 | 山东阳光加百列生物科技有限公司 | Probiotic vacuum freeze dryer |
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| CN203661992U (en) * | 2013-11-28 | 2014-06-25 | 石峰 | Rotary vacuum loosening and conditioning machine |
| KR20160075881A (en) * | 2014-12-19 | 2016-06-30 | 주식회사 이푸드 | Chicken breast processing methods for omega-3 has been added BBQ |
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| CN116473260A (en) | 2023-07-25 |
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