Probiotic low-temperature drying device

Abstract

The utility model provides a probiotic low-temperature drying device which comprises a conical barrel, a wet material pipe is inserted into the conical barrel, a sprayer is installed at the tail end of the wet material pipe, the bottom of the conical barrel communicates with a first cyclone separator through a first dry material pipe, and the upper end of the conical barrel communicates with a water-vapor separation barrel integrally formed with the conical barrel; a spiral blade is arranged in the water-steam separation barrel, the wet material pipe vertically penetrates through the center of the spiral blade and extends to the lower end, a steam exhaust pipe is arranged on the top wall of the water-steam separation barrel, the lower end of the side wall of the water-steam separation barrel is communicated with a cold air pipe, and a fan used for conveying dry materials through wind power is installed on the first dry material pipe. According to the probiotic low-temperature drying device, water vapor separated from probiotic liquid in a sublimation mode can rise in time along the spiral blade and enter the steam exhaust pipe through the water vapor separation barrel, the water vapor in the conical barrel is exhausted in time, the amount of the water vapor entering the first drying pipe is reduced, and the drying effect and the drying efficiency are improved.

Description

Technical Field

[0001] This application relates to the technology of low-temperature drying of probiotics, and particularly to a low-temperature drying device for probiotics. Background Art

[0002] After the probiotics are expanded and fermented, they need to be dried at low temperature by spray drying to produce powdered probiotic solid drinks.

[0003] In the existing low-temperature drying device, after the probiotic liquid is atomized and sprayed out by a sprayer, cold air for low-temperature drying is blown into the conical cylinder through a cold air pipe to freeze-dry the atomized probiotic liquid. The water vapor generated by sublimation and the dried powder jointly enter the cyclone separator through the dry material pipe, and are separated again in the cyclone separator. The probiotic powder is discharged downward, and the water vapor is discharged upward.

[0004] In the existing low-temperature drying device, the water vapor in the probiotic liquid cannot be discharged in time after being separated in the conical cylinder. During the process that a large amount of water vapor jointly enters the cyclone separator through the dry material pipe, it is easily re-condensed and absorbed by the powder, affecting the drying effect and drying efficiency. Summary of the Utility Model

[0005] This application provides a low-temperature drying device for probiotics to solve the problem that the water vapor in the probiotic liquid of the existing low-temperature drying device cannot be discharged in time after being separated in the conical cylinder.

[0006] This application provides a low-temperature drying device for probiotics, including a conical cylinder. A wet material pipe is inserted into the conical cylinder. A sprayer is installed at the end of the wet material pipe. The bottom of the conical cylinder is communicated with a first cyclone separator through a first dry material pipe. The upper end of the conical cylinder is communicated with a water vapor separation cylinder integrally formed therewith. A spiral blade is arranged in the water vapor separation cylinder. The wet material pipe vertically passes through the center of the spiral blade and extends to the lower end. An exhaust pipe is arranged on the top wall of the water vapor separation cylinder. The lower end of the side wall is communicated with a cold air pipe. A fan for pneumatically conveying dry materials is installed on the first dry material pipe.

[0007] Optionally, the cold air pipe is inserted into the side wall of the water vapor separation cylinder along the tangential direction, and the air outlet of the cold air pipe corresponds to the position of the sprayer.

[0008] Optionally, a sleeve is vertically fixed at the center of the top wall of the water vapor separation cylinder. The wet material pipe vertically passes through the sleeve and slides up and down. A locking mechanism for clamping and fixing the wet material pipe is arranged on the sleeve.

[0009] Optionally, it further includes a second cyclone separator. The feed inlet of the second cyclone separator is communicated with the conical cylinder through a second dry material pipe. The second dry material pipe is inserted into the center of the conical cylinder and the pipe orifice is vertically bent downward. A fan is installed on the second dry material pipe.

[0010] Optionally, the powder outlet of the second cyclone separator is communicated with the first dry material pipe through a confluence pipe.

[0011] Optionally, the air flow outlets at the upper ends of the first cyclone separator and the second cyclone separator are communicated with an exhaust pipe through an air outlet pipe, and a blower is installed on the air outlet pipe.

[0012] Compared with the prior art, the beneficial effects of the probiotic low-temperature drying device provided by the present application are as follows:

[0013] The probiotic liquid is atomized and sprayed in the conical cylinder and freeze-dried by the cold air blown in through the cold air pipe. The water vapor sublimated and separated from the probiotic liquid can rise along the spiral blade in time, pass through the water vapor separation cylinder and enter the exhaust pipe, so as to timely discharge the water vapor in the conical cylinder, reduce the amount of water vapor entering the first dry material pipe, and improve the drying effect and drying efficiency.

[0014] The structure of the spiral blade can extend the rising path of the water vapor, and the water vapor needs to continuously turn during the rising process, so that it is further separated from the powder during the spiral rising process, reducing the carrying amount of the powder and reducing the loss.

[0015] The dried and separated powder falls along the conical surface of the conical cylinder into the first dry material pipe, and then is sucked into the first cyclone separator by a blower for secondary separation of impurities and remaining water vapor, further improving the purity and drying effect of the probiotic powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 The front view of the probiotic low-temperature drying device provided by an embodiment of the present application;

[0018] Figure 2 The probiotic low-temperature drying device provided by an embodiment of the present application Figure 1 The sectional view;

[0019] Figure 3 The schematic diagram of the tangential connection of the cold air pipe of the probiotic low-temperature drying device provided by an embodiment of the present application;

[0020] Figure 4 The schematic diagram of the connection of the second cyclone separator of the probiotic low-temperature drying device provided by an embodiment of the present application;

[0021] Figure 5Schematic connection diagram of the confluence pipe of the probiotic low-temperature drying device provided by an embodiment of the present application.

[0022] Explanation of reference numerals:

[0023] Conical cylinder 1; cold air pipe 2; wet material pipe 3; sprayer 4; first dry material pipe 5; first cyclone separator 6; air outlet pipe 7; water vapor separation cylinder 8; spiral blade 9; exhaust pipe 10; fan 11; second cyclone separator 12; second dry material pipe 13; confluence pipe 14; sleeve 15. Detailed implementation manners

[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below. Apparently, the described embodiments are some, but not all, of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts also belong to the scope of protection of the present application.

[0025] As Figure 1 and Figure 2 shown, an embodiment of the present application provides a probiotic low-temperature drying device, including a conical cylinder 1. A wet material pipe 3 is inserted into the conical cylinder 1. A sprayer 4 is installed at the end of the wet material pipe 3. The bottom of the conical cylinder 1 is communicated with a first cyclone separator 6 through a first dry material pipe 5. The upper end of the conical cylinder 1 is communicated with a water vapor separation cylinder 8 integrally formed therewith. A spiral blade 9 is provided in the water vapor separation cylinder 8. The wet material pipe 3 vertically passes through the center of the spiral blade 9 and extends to the lower end. An exhaust pipe 10 is provided on the top wall of the water vapor separation cylinder 8, and the lower end of the side wall is communicated with the cold air pipe 2. A fan 11 for pneumatically conveying dry materials is installed on the first dry material pipe 5.

[0026] During use, the probiotic liquid vertically enters the conical cylinder 1 through the wet material pipe 3 and is atomized and sprayed out through the sprayer 4. While the probiotic liquid is being sprayed out, low-temperature drying cold air is blown into the sprayer 4 through the cold air pipe 2 to freeze-dry the probiotic liquid. The water in the probiotic liquid sublimes to form water vapor, which rises upward along the spiral blade 9 to the top of the water vapor separation cylinder 8 and is discharged through the exhaust pipe 10. The powder after drying the probiotic liquid falls to the bottom of the conical cylinder 1 and is sucked into the first cyclone separator 6 through the first dry material pipe 5 by the fan 11 to separate impurities and remaining water vapor again.

[0027] In this embodiment, the probiotic liquid is atomized and sprayed out in the conical cylinder 1 and freeze-dried by the cold air blown in through the cold air pipe 2. The water vapor sublimated and separated from the probiotic liquid can timely rise along the spiral blade 9, pass through the water vapor separation cylinder 8, and enter the exhaust pipe 10, timely discharging the water vapor in the conical cylinder 1, reducing the amount of water vapor entering the first dry material pipe 5, and improving the drying effect and drying efficiency.

[0028] The structure of the spiral blade 9 can extend the rising path of the water vapor and requires the water vapor to continuously turn during the rising process, so that it is further separated from the powder during the spiral rising process, reducing the carrying amount of the powder and lowering the loss.

[0029] The dried and separated powder falls along the conical surface of the conical cylinder 1 into the first dry material pipe 5, and then is sucked into the first cyclone separator 6 by the fan 11 for secondary separation of impurities and remaining water vapor, further improving the purity and drying effect of the probiotic powder.

[0030] As Figure 3 shown, in a possible implementation manner, the cold air pipe 2 is inserted into the side wall of the water vapor separation cylinder 8 along the tangent direction, and the air outlet of the cold air pipe 2 corresponds to the position of the sprayer 4.

[0031] The cold air pipe 2 fixed along the tangent direction can blow cold air into the water vapor separation cylinder 8 tangentially, causing the atomized probiotic liquid to generate a swirl while undergoing freeze-drying. The specific gravity of the freeze-dried powder is large, and the centrifugal force it receives in the swirl is greater than that of the water vapor. It moves downward along the inner wall of the conical cylinder 1, while the water vapor moves upward from the center of the conical cylinder 1, which is conducive to the separation of the freeze-dried powder and the water vapor.

[0032] In a possible implementation manner, a sleeve 15 is vertically fixed at the center of the top wall of the water vapor separation cylinder 8, the wet material pipe 3 vertically passes through the sleeve 15 and slides up and down, and a locking mechanism for clamping and fixing the wet material pipe 3 is provided on the sleeve 15.

[0033] The wet material pipe 3 vertically passing through the sleeve 15 can slide up and down, facilitating the adjustment of the position of the sprayer 4 by adjusting the height of the wet material pipe 3, so that the atomized liquid sprayed by the sprayer 4 can be quickly freeze-dried by the cold air and generate a swirl.

[0034] As Figure 4 shown, in a possible implementation manner, a second cyclone separator 12 is further included. The feed inlet of the second cyclone separator 12 is communicated with the conical cylinder 1 through a second dry material pipe 13. The second dry material pipe 13 is inserted into the center of the conical cylinder 1 and the pipe orifice is vertically bent downward, and a fan 11 is installed on the second dry material pipe 13.

[0035] The powder in the conical cylinder 1 that fails to enter the first dry material pipe 5 in time will accumulate at the bottom of the conical cylinder 1 under the action of the swirl and then overflow upward along the center. Through the second dry material pipe 13 with a downward-bent pipe orifice, the upward-overflowing powder can be timely sucked into the second cyclone separator 12, and the impurities and remaining water vapor are separated twice by the second cyclone separator 12, improving the drying efficiency.

[0036] As Figure 5As shown, in a possible implementation, the powder outlet of the second cyclone separator 12 is connected to the first dry material pipe 5 through a confluence pipe 14.

[0037] The powder separated by upward overflow and entering the second cyclone separator 12 enters the first dry material pipe 5 through the confluence pipe 14 for swirling separation again, further improving the purity of the probiotic powder.

[0038] In a possible implementation, the gas flow outlets at the upper ends of the first cyclone separator 6 and the second cyclone separator 12 are connected to the exhaust pipe 10 through an air outlet pipe 7, and a fan 11 is installed on the air outlet pipe 7.

[0039] The impurities and remaining water vapor separated by the first cyclone separator 6 and the second cyclone separator 12 are introduced into the exhaust pipe 10 through the fan 11 for combined treatment.

[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A probiotic low-temperature drying device, comprising a cone (1), a wet material pipe (3) is inserted into the cone (1), a sprayer (4) is installed at the end of the wet material pipe (3), and the bottom of the cone (1) is connected to a first cyclone separator (6) through a first dry material pipe (5), characterized in that: The upper end of the conical cylinder (1) is connected to a water vapor separation cylinder (8) integrally formed therewith, and a spiral blade (9) is provided in the water vapor separation cylinder (8). The wet material pipe (3) vertically passes through the center of the spiral blade (9) and extends to the lower end. The top wall of the water vapor separation cylinder (8) is provided with a steam exhaust pipe (10), and the lower end of the side wall is connected to the cold air pipe (2). The first dry material pipe (5) is equipped with a fan (11) for pneumatically conveying dry material.

2. The probiotics low-temperature drying device according to claim 1, characterized in that: The cold air pipe (2) is inserted into the side wall of the water vapor separation cylinder (8) along the tangential direction, and the air outlet of the cold air pipe (2) corresponds to the position of the sprayer (4).

3. The probiotics low-temperature drying device according to claim 2, characterized in that: A sleeve (15) is vertically fixed at the center of the top wall of the water vapor separation cylinder (8), and the wet material pipe (3) vertically passes through the sleeve (15) to slide up and down. The sleeve (15) is provided with a locking mechanism for clamping and fixing the wet material pipe (3).

4. The probiotics low-temperature drying device according to claim 2, characterized in that: It also includes a second cyclone separator (12), the feed port of the second cyclone separator (12) is connected to the cone cylinder (1) through a second dry material pipe (13), the second dry material pipe (13) is inserted into the center of the cone cylinder (1) and the pipe mouth is bent vertically downward, and a fan (11) is installed on the second dry material pipe (13).

5. The probiotics low-temperature drying device according to claim 4, characterized in that: The powder material outlet of the second cyclone separator (12) is connected to the first dry material pipe (5) through a confluence pipe (14).

6. The probiotics low-temperature drying device according to claim 4 or 5, characterized in that: The air flow outlets at the upper ends of the first cyclone separator (6) and the second cyclone separator (12) are connected to the exhaust pipe (10) through an air outlet pipe (7), and a fan (11) is installed on the air outlet pipe (7).

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