Freeze-drying vacuum sublimation device

Abstract

The utility model discloses a freeze-drying vacuum sublimation device. The freeze-drying vacuum sublimation device comprises a freezing tank, a dust remover communicated with the freezing tank and a vacuum pump communicated with the dust remover, the freezing tank is used for freezing the chopped freeze-dried powder raw materials, and the vacuum pump is used for pumping air in the freezing tank; an inlet of the dust remover is connected with the freezing tank, an outlet of the dust remover is connected with the vacuum pump, and the dust remover is used for adsorbing particulate matters in air in the freezing tank. The dust remover is arranged between the freezing tank and the vacuum pump, particulate matter in the freezing tank is prevented from entering the vacuum pump, the vacuum degree of the vacuum pump is reduced, sufficient sublimation of moisture in freeze-drying raw materials is guaranteed, smooth freeze-drying manufacturing is guaranteed, and meanwhile particles are adsorbed through the electrostatic interaction of the particle collector and prevented from being mixed into air for the second time.

Description

TECHNICAL FIELD

[0001] The utility model relates to probiotic freeze-dried powder manufacturing technical field, concretely relates to a freeze-drying vacuum sublimation device. BACKGROUND

[0002] Probiotic freeze-dried powder is a kind of probiotic product prepared using vacuum freeze-drying technology, which can effectively preserve the activity and stability of probiotics, so that probiotics can be stored for a long time at room temperature. The common process of freeze-dried powder production includes: raw material preparation: firstly, the raw material is washed, peeled, cut or chopped, freeze-drying: the cut raw material is placed in the freezing chamber for freezing, so that it reaches the frozen state. Evaporation: the environment of the frozen raw material is gradually close to vacuum by vacuum pump, so that the water in the raw material is directly sublimated into gas in solid form. Pulverization: the evaporated raw material becomes a brittle solid, which needs to be pulverized for subsequent packaging and use. During the evaporation process, the cut raw material in the raw material preparation stage will generate some debris, which will form a certain amount of particulate matter after freezing. Such particulate matter entering the vacuum pump will affect the sealing of the vacuum pump, causing the vacuum degree to drop, resulting in incomplete sublimation of water in freeze-drying and failure of freeze-drying production. SUMMARY

[0003] To solve the above technical problems, the utility model provides the following technical scheme:

[0004] A freeze-drying vacuum sublimation device, comprising: a freezing tank, a dust collector communicating with the freezing tank, and a vacuum pump communicating with the dust collector;

[0005] The freezing tank is used for freezing the chopped freeze-dried powder raw material, and the vacuum pump is used for extracting air in the freezing tank. The inlet of the dust collector is connected with the freezing tank, and the outlet is connected with the vacuum pump. The dust collector is used for adsorbing particulate matter in the air of the freezing tank.

[0006] Further, the upper end of the dust collector is the dust collector inlet, and the lower end is the dust collector outlet. The outlet of the freezing tank is connected with the dust collector inlet through a first gas pipeline, and the dust collector outlet is connected with the vacuum pump through a second gas pipeline.

[0007] Further, the dust collector comprises a dust collector rack, a dust collector shell arranged on the dust collector rack, a dust collector upper cover arranged on the dust collector shell, and a particulate recycler arranged below the dust collector shell. The dust collector upper cover is sealed and fixed on the dust collector shell by a plurality of clamps and sealing rings. The dust collector inlet is arranged at the upper end of the dust collector shell, and the dust collector outlet is arranged at the lower end of the dust collector shell.

[0008] Further, the dust collector shell is provided with a plurality of dust cloth bags, one side of the dust cloth bag is provided with a baffle, and the baffle is arranged between the dust collector inlet and the dust cloth bag.

[0009] Further, the upper portion of the dust cloth bag is provided with a porous frame, the porous frame is fixed with a compressed air system, the compressed air system comprises a compressed air bottle and a compressed air pipeline, the compressed air pipeline is arranged above the dust cloth bag, and a compressed air outlet is formed in the lower surface of the compressed air pipeline and corresponds to each dust cloth bag.

[0010] Further, the dust collector shell is provided with an air bottle support through a fixing member, such as a screw, a plurality of pipeline mounting holes are formed in the dust collector shell and correspond to the compressed air pipeline, a plurality of electromagnetic valves are arranged on the compressed air bottle, and the electromagnetic valves and the compressed air pipeline are connected through flanges and sealing rings.

[0011] Further, the particle collector is arranged at the bottom of the dust collector shell and comprises a collector shell and a voltage generator fixed on the collector shell, and the collector shell is made of a conductive material.

[0012] Compared with the prior art, the dust collector is arranged between the refrigeration tank and the vacuum pump, so that the particulate matter in the refrigeration tank can be prevented from entering the vacuum pump, the vacuum degree is prevented from being reduced, the sufficient sublimation of the moisture in the freeze-dried raw material is ensured, the freeze-drying process is ensured to be smooth, and the particles are adsorbed through the electrostatic effect of the particle collector, so that the particles are prevented from being mixed into the air again. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a general structure diagram of the freeze-drying vacuum sublimation device.

[0014] Figure 2 It is a three-dimensional structure diagram of the dust collector in the freeze-drying vacuum sublimation device.

[0015] Figure 3 It is an explosion structure diagram of the dust collector in the freeze-drying vacuum sublimation device.

[0016] The refrigeration tank 1, the dust collector 2, the vacuum pump 3, the first gas pipeline 4, the second gas pipeline 5, the caliper 6 and the compressed air system 7.

[0017] The dust collector inlet 21, the dust collector outlet 22, the dust collector rack 23 and the dust collector shell 24.

[0018] The dust collector upper cover 25, the particle collector 26, the dust cloth bag 27 and the baffle 28.

[0019] Porous frame 29, collector housing 261, voltage generator 262;

[0020] Vacuum pump inlet 31, vacuum pump outlet 32;

[0021] Compressed air bottle 71, compressed air pipe 72, air bottle support 73;

[0022] Pipe mounting hole 74, electromagnetic valve 75. DETAILED DESCRIPTION

[0023] To make the purposes, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below, obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0024] The utility model relates to a freeze-drying vacuum sublimation device, refer to Figure 1 It includes: the freeze tank 1, the dust remover 2 who communicates with freeze tank 1 and the vacuum pump 3 who communicates with dust remover 2,

[0025] The freeze tank 1 is used for freezing the freeze-dried powder raw material after cutting, and the vacuum pump 3 is used for extracting air in the freeze tank 1, so that the freeze tank 1 is close to a vacuum environment, which is conducive to the direct sublimation of liquid in the freeze-dried powder raw material.

[0026] The inlet of the dust remover 2 is connected with the freeze tank 1, and the outlet is connected with the vacuum pump 3, and the dust remover 2 is used for adsorbing particulate matter in the air of the freeze tank 1, to ensure the normal operation of the vacuum pump 3.

[0027] In some embodiments of the utility model, the working principle of the freeze tank is mainly based on refrigeration cycle, and the main components include refrigeration compressor, condenser, expansion valve and evaporator and other components (not shown in the figure), which are disclosed in the prior art, and are not limited here.

[0028] In some embodiments of the utility model, refer to Figure 1 The upper end of the dust remover 2 is a dust remover inlet 21, and the lower end is a dust remover outlet 22, the outlet of the freeze tank 1 is connected with the dust remover inlet 21 through a first gas pipeline 4, and the dust remover outlet 22 is connected with the vacuum pump 3 through a second gas pipeline 5.

[0029] In some embodiments of the utility model, refer to Figure 1The upper end of the vacuum pump 3 is a vacuum pump inlet 31, and the side end is a vacuum pump outlet 32.

[0030] In some embodiments of the present application, refer to Figure 1 and Figure 2 The dust collector 2 comprises a dust collector rack 23, a dust collector shell 24 arranged on the dust collector rack 23, a dust collector upper cover 25 arranged on the dust collector shell 24, and a particle collector 26 arranged below the dust collector shell 24.

[0031] In some embodiments of the present application, refer to Figure 2 and Figure 3 A plurality of dust cloth bags 27 are arranged in the dust collector shell 24, one side of the dust cloth bag 27 is provided with a baffle 28, and the baffle 28 is arranged between the dust collector inlet 21 and the dust cloth bag 27.

[0032] The air containing particulate matter drawn from the freezing tank 1 enters the dust collector through the dust collector inlet 21, large particles in the particulate matter are blocked by the baffle 28 and fall into the particle collector 26, and the air containing small particulate matter passes through the plurality of dust cloth bags 27, and small particles in the air are adsorbed on the outer surface of the dust cloth bag 27, so that dust removal of the air is realized.

[0033] In some embodiments of the present application, refer to Figure 2 and Figure 3 A plurality of dust cloth bags 27 are arranged in the dust collector shell 24, one side of the dust cloth bag 27 is provided with a baffle 28, and the baffle 28 is arranged between the dust collector inlet 21 and the dust cloth bag 27.

[0034] In some embodiments of the present application, refer to Figure 2 and Figure 3The dust collector shell 24 is provided with an air bottle support 73 through a fixing member such as a screw, and a plurality of pipeline mounting holes 74 are formed corresponding to the compressed air pipeline 72, the compressed air bottle 71 is provided with a plurality of electromagnetic valves 75, the electromagnetic valves 75 are connected with the compressed air pipeline 72 through flanges and sealing rings (not shown in the figure), and the air tightness of the equipment is ensured.

[0035] In some embodiments of the utility model, refer to Figure 2 and Figure 3 The particle collector 26 is arranged at the bottom of the dust collector shell 24, and comprises a collector shell 261 and a voltage generator 262 fixed on the collector shell 261, the collector shell 261 is made of conductive material, the voltage generator 260 is electrified, and the particle material is better adsorbed through electrostatic action, so that the particle material is prevented from being mixed into the air again by the airflow.

[0036] The specific operation principle of the application is as follows: the air in the refrigeration tank 1 enters the dust collector through the dust collector inlet 21, the large particles in the air are hindered and fall by the baffle 28 and enter the particle collector 26, the air with small particles enters from the outside of the dust cloth bag 27 and is adsorbed on the outer surface of the dust cloth bag 27, and then the dust-removed air is extracted by the vacuum pump 3; the compressed air is introduced into the compressed air pipeline 72 by controlling the electromagnetic valve 75, the compressed air blows the small particles adsorbed on the outer surface of the dust cloth bag 27 outward from the inside of the dust cloth bag 27 through the compressed air outlet; the collector shell 261 is electrified by the voltage generator 260, and the particle material is better adsorbed through electrostatic action, so that the particle material is prevented from being mixed into the air again by the airflow.

[0037] The above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.

Claims

1. A freeze-drying vacuum sublimation apparatus, characterized by, The application relates to a refrigeration tank, a dust collector connected with the refrigeration tank and a vacuum pump connected with the dust collector. The refrigeration tank is used for refrigerating a crushed freeze-dried powder raw material, the vacuum pump is used for pumping air in the refrigeration tank, the dust collector is connected with the refrigeration tank at an inlet and connected with the vacuum pump at an outlet, and the dust collector is used for adsorbing particulate matters in the air of the refrigeration tank. The upper end of the dust collector is the dust collector inlet, the lower end is the dust collector outlet, the outlet of the refrigeration tank is connected with the dust collector inlet through a first gas pipeline, and the dust collector outlet is connected with the vacuum pump through a second gas pipeline.

2. The lyophilization vacuum sublimation apparatus of claim 1, wherein, The dust collector comprises a dust collector rack, a dust collector shell arranged on the dust collector rack, a dust collector upper cover arranged on the dust collector shell and a particle collector arranged below the dust collector shell; the dust collector upper cover is sealed and fixed on the dust collector shell through a plurality of clamps and sealing rings, the dust collector inlet is arranged at the upper end of the dust collector shell, and the dust collector outlet is arranged at the lower end of the dust collector shell.

3. The lyophilization vacuum sublimation apparatus of claim 2, wherein: A plurality of dust collecting cloth bags are arranged in the dust collector shell, one side of the dust collecting cloth bag is provided with a baffle, and the baffle is arranged between the dust collector inlet and the dust collecting cloth bag.

4. The lyophilization vacuum sublimation apparatus of claim 3, wherein: A porous frame is arranged above the dust collecting cloth bag, a compressed air system is fixed on the porous frame, the compressed air system comprises a compressed air bottle and a compressed air pipeline, the compressed air pipeline is arranged directly above the dust collecting cloth bag, and a compressed air outlet is arranged on the lower surface of the compressed air pipeline and corresponds to each dust collecting cloth bag.

5. The lyophilization vacuum sublimation apparatus of claim 4, wherein: An air bottle support is arranged on the dust collector shell through a fixing member, a plurality of pipeline mounting holes are arranged on the dust collector shell and correspond to the compressed air pipeline, a plurality of electromagnetic valves are arranged on the compressed air bottle, and the electromagnetic valves are connected with the compressed air pipeline through flanges and sealing rings.

6. The lyophilization vacuum sublimation apparatus of claim 5, wherein: The particle collector is arranged at the bottom of the dust collector shell and comprises a collector shell and a voltage generator fixed on the collector shell, and the collector shell is made of a conductive material.

7. The lyophilization vacuum sublimation apparatus of claim 3, wherein: ​

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