Drying device for bean protein powder production

Abstract

The utility model belongs to the technical field of drying equipment, and particularly relates to a drying device for producing bean protein powder, which comprises a tank body, an interlayer arranged in the tank body, a heating component arranged in the interlayer, a stirring component arranged in the tank body, a filling pipe arranged at the top of the tank body and a discharging pipe arranged at the bottom of the tank body. The top of the tank body is provided with an air inlet fan and a first-stage exhaust pipe which are connected into the tank body, one side of the tank body is provided with a water storage tank, the tail end of the first-stage exhaust pipe is inserted into the water storage tank, and the water storage tank is provided with a second-stage exhaust pipe, a water injection valve and a water drainage valve which are connected into the tank body. Compared with the prior art, the drying device effectively solves the problems of non-uniform heating and low efficiency in the drying process of the bean protein powder through the innovative design of the stirring assembly and the air inlet and exhaust, improves the drying uniformity and the production efficiency, and reduces the energy consumption and the production cost at the same time.

Description

Technical Field

[0001] This utility model belongs to the field of drying equipment technology, and specifically relates to a drying device for the production of soybean protein powder. Background Technology

[0002] In the production of soy protein powder, especially pea protein powder, the drying process plays a crucial role. This step aims to effectively remove excess moisture from the protein powder to achieve suitable storage conditions while maintaining the product's nutritional value and taste. However, traditional drying methods, such as directly piling freshly produced pea protein powder in a dryer for drying, face significant challenges.

[0003] Specifically, due to the differences in thickness and density formed by the accumulation of protein powder, heat is difficult to distribute evenly as it penetrates the entire powder pile. The outer layer of protein powder, closer to the heat source, tends to heat up quickly and reach the required drying speed, while the inner layer dries significantly slower due to impeded heat transfer. This uneven heating not only leads to low drying efficiency but can also cause inconsistent product quality, such as the outer layer being over-dried while the inner layer still contains high moisture content, affecting the final quality and stability of the protein powder.

[0004] In addition, traditional drying methods usually require a long time cycle to complete the entire drying process, which not only increases energy consumption but also limits the overall capacity of the production line and reduces economic efficiency. Summary of the Invention

[0005] To address the shortcomings of the existing technology, this invention provides a drying device for the production of soybean protein powder, thereby solving the aforementioned problems.

[0006] This utility model discloses a drying device for the production of soybean protein powder, comprising a tank body with a jacket inside the tank body, a heating component inside the jacket, a stirring component inside the tank body, a packing pipe at the top of the tank body, and a discharge pipe at the bottom of the tank body, both the discharge pipe and the packing pipe being equipped with valves. An air intake fan and a primary exhaust pipe connected to the inside of the tank are located at the top of the tank body. A water storage tank is located on one side of the tank body, and the end of the primary exhaust pipe is inserted into the water storage tank. The water storage tank is equipped with a secondary exhaust pipe, a water injection valve, and a drain valve respectively connected to the inside of the tank.

[0007] Furthermore, the stirring assembly includes a motor disposed at the bottom of the tank, a vertical stirring shaft disposed inside the tank, and a plurality of horizontal inner stirring rods arranged in an array around the stirring shaft, the motor being drivenly connected to the stirring shaft.

[0008] Furthermore, a first bevel gear is fitted at the bottom end of the stirring shaft, and a central shaft passes through the stirring shaft. Both ends of the central shaft extend out of the stirring shaft. A second bevel gear is provided at the bottom end of the central shaft, and several crossbeams are provided at the top end. The end of each crossbeam is bent downward at 90°. Several layers of outer stirring rods are provided on each crossbeam, which are staggered with the inner stirring rods. A drive bevel gear is provided on the drive shaft of the motor, which is driven and connected to the first bevel gear and the second bevel gear.

[0009] Furthermore, the bottom of the tank is provided with a transmission box covering the first bevel gear, the second bevel gear, and the driving bevel gear.

[0010] Furthermore, the liquid level in the water tank does not exceed the end of the primary exhaust pipe.

[0011] Furthermore, the water storage tank is equipped with a level gauge.

[0012] Furthermore, the tank body is equipped with a protective tower cover that works in conjunction with the air intake fan.

[0013] Furthermore, a filter screen is installed inside the primary exhaust pipe.

[0014] Furthermore, the heating assembly includes an electric heating wire disposed within the interlayer.

[0015] Compared with existing technologies, this drying device effectively solves the problems of uneven heating and low efficiency in the drying process of soybean protein powder through innovative stirring components and air intake and exhaust design. It improves drying uniformity and production efficiency, while reducing energy consumption and production costs. It has significant beneficial effects on improving the overall performance and economic benefits of soybean protein powder production lines. Attached Figure Description

[0016] Figure 1 This is a front view of the present invention;

[0017] Figure 2 This is a front sectional view of the present invention.

[0018] In the diagram: 1. Tank body; 2. Heating assembly; 3. Packing pipe; 4. Discharge pipe; 5. Valve; 6. Inlet fan; 7. Primary exhaust pipe; 8. Water storage tank; 9. Secondary exhaust pipe; 10. Water injection valve; 11. Drain valve; 12. Motor; 13. Agitator shaft; 14. Inner agitator rod; 15. First bevel gear; 16. Central shaft; 17. Second bevel gear; 18. Crossbeam; 19. Outer agitator rod; 20. Drive bevel gear; 21. Transmission box; 22. Level gauge; 23. Protective tower cover; 24. Filter screen; 25. End face bearing; 26. Thrust bearing. Detailed Implementation

[0019] To better understand this utility model, the following is in conjunction with... Figures 1 to 2 The embodiments of this utility model will be explained in detail below.

[0020] It should be noted that the directions "front, back, left, right, up, down" mentioned in the text are all relative to the direction of the text. Figure 1 The directions are based on "front, back, left, right, up, down".

[0021] This utility model discloses a drying device for the production of soybean protein powder, comprising a tank 1 with an internal jacket for mounting a heating assembly 2. The heating assembly 2 is preferably an electric heating wire, which is evenly distributed within the jacket and generates heat through an external power supply to heat and dry the protein powder inside the tank 1.

[0022] The tank 1 is equipped with a stirring assembly to overcome the problem of uneven heating of protein powder in traditional drying methods. Several layers of transverse inner stirring rods 14 are arranged in a rotating array around the axis on the stirring shaft 13. These stirring rods can tumble the protein powder during rotation, making it more evenly heated.

[0023] The top of tank 1 is equipped with a packing pipe 3 and a discharge pipe 4, which are used for adding protein powder and discharging dried protein powder, respectively. Both the packing pipe 3 and the discharge pipe 4 are equipped with valves 5 to control the inflow and outflow of materials.

[0024] To expel hot and humid air from tank 1, an intake fan 6 and a primary exhaust pipe 7 are installed on the top of tank 1, and a water storage tank 8 is installed on one side of tank 1. The intake fan 6 introduces fresh air into tank 1 to promote the expulsion of hot and humid air. The end of the primary exhaust pipe 7 is inserted into the water storage tank 8, and the liquid level in the water storage tank 8 is above the end of the primary exhaust pipe 7. A water seal prevents backflow of external air, and the condensation effect of the water further removes moisture from the expelled hot air. A secondary exhaust pipe 9 is installed on the water storage tank 8 to expel the condensed dry air. A water injection valve 10 and a water drain valve 11 are also installed on the water storage tank 8 to control the water level.

[0025] To ensure a suitable water level in the water tank 8, a level gauge 22 is installed on the water tank 8 for real-time monitoring of the water level. When the water level is too high, excess water can be drained through the drain valve 11; when the water level is too low, an appropriate amount of water can be added through the water inlet valve 10.

[0026] The stirring assembly includes a motor 12 located at the bottom of the tank 1, a vertical stirring shaft 13 located inside the tank 1, and several layers of horizontal inner stirring rods 14 arranged in a rotating array around the axis of the stirring shaft 13. The motor 12 drives the stirring shaft 13 to rotate.

[0027] To enhance the mixing effect, a first bevel gear 15 is fitted at the bottom of the mixing shaft 13, and a central shaft 16 passes through the mixing shaft 13. Both ends of the central shaft 16 extend beyond the mixing shaft 13, with a second bevel gear 17 at its bottom and several crossbeams 18 at its top. Each crossbeam 18 has its end bent downwards at 90°, and several layers of outer mixing rods 19, staggered with the inner mixing rods 14, are mounted on each crossbeam 18. A drive bevel gear 20, connected to the first bevel gear 15 and the second bevel gear 17, is mounted on the drive shaft of the motor 12. When the motor 12 starts, the drive bevel gear 20 simultaneously drives the first bevel gear 15 and the second bevel gear 17 to rotate, thereby causing the mixing shaft 13 and the central shaft 16 to rotate simultaneously, achieving synchronous mixing of the inner and outer mixing rods and further improving the uniformity of protein powder drying.

[0028] To protect the intake fan 6 from external environmental interference, a protective tower cover 23 is installed on the top of the tank 1 to cooperate with the intake fan 6. At the same time, a filter screen 24 is installed in the primary exhaust pipe 7 to filter impurities and dust in the exhaust hot air and prevent them from entering the water storage tank 8 and the external environment.

[0029] The bottom of the tank body 1 is provided with a transmission box 21 covering the first bevel gear 15, the second bevel gear 17, and the drive bevel gear 20, which is used to protect these gears from corrosion and damage from the external environment, while reducing noise and vibration.

[0030] To ensure that the stirring shaft 13 and the central shaft 16 rotate independently without interference, an end-face bearing 25 coaxial with the central shaft 16 is installed at the bottom of the transmission box 21. The top of the end-face bearing 25 abuts against the second bevel gear 17. The support of the end-face bearing 25 allows the central shaft 16 to maintain its own height and rotate smoothly. A thrust bearing 26 sleeved on the stirring shaft 13 is installed at the bottom of the tank 1. The thrust bearing 26 is used to support the stirring shaft 13 to maintain its own height and rotate smoothly within the tank 1. By setting up two types of axial bearings, the end-face bearing 25 and the thrust bearing 26, the central shaft 16 and the stirring shaft 13 can each maintain their own height, thereby allowing the first bevel gear 15 and the second bevel gear 17 to always mesh with the drive bevel gear 20 for transmission. Ultimately, this enables the central shaft 16 and the stirring shaft 13 of the stirring assembly to achieve stable coaxial reverse rotation.

[0031] The usage and principle of this utility model:

[0032] When using the drying apparatus of this invention, firstly, the soybean protein powder to be dried is added to the tank 1 through the packing tube 3, and then the valve 5 on the packing tube 3 is closed. Next, the motor 12 and the heating assembly 2 are started. The motor 12 drives the stirring assembly to rotate, while the heating assembly 2 heats and dries the protein powder in the tank 1. During the drying process, the air intake fan 6 continuously introduces fresh air into the tank 1 to promote the discharge of hot and moist air. The discharged hot air enters the water storage tank 8 through the primary exhaust pipe 7 for condensation treatment, and is finally discharged through the secondary exhaust pipe 9. When the drying reaches the predetermined requirements, the heating assembly 2 and the motor 12 are turned off, and the valve 5 on the discharge pipe 4 is opened to discharge the dried protein powder from the tank 1. Finally, the water level in the water storage tank 8 is adjusted and cleaned as needed.

[0033] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or internal connections between two components, and can be direct connections or indirect connections through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0034] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A drying device for production of legume protein powder, comprising a tank body (1), a heating assembly (2) is arranged in a sandwich layer in the tank body (1), characterized in that: The tank body (1) is provided with a stirring assembly, the top of the tank body (1) is provided with a filling pipe (3), the bottom is provided with a discharge pipe (4), the discharge pipe (4) and the filling pipe (3) are both provided with a valve (5), the top of the tank body (1) is provided with a gas inlet fan (6) connected to the tank, a primary exhaust pipe (7), one side of the tank body (1) is provided with a water storage tank (8), the end of the primary exhaust pipe (7) is inserted into the water storage tank (8), the water storage tank (8) is provided with a secondary exhaust pipe (9), a water filling valve (10) and a water discharge valve (11) connected to the tank respectively.

2. A drying apparatus for the production of pulse protein powder as claimed in claim 1, characterised in that: The stirring assembly comprises a motor (12) arranged at the bottom of the tank body (1), the tank body (1) is provided with a vertical stirring shaft (13), the stirring shaft (13) is arranged with a plurality of layers of transverse inner stirring rods (14) in the form of a shaft rotation array, and the motor (12) is drivingly connected with the stirring shaft (13).

3. A drying apparatus for the production of pulse protein powder as claimed in claim 2, characterised in that: The bottom end of the stirring shaft (13) is sleeved with a first bevel gear (15), the stirring shaft (13) is provided with a central shaft (16) penetrating therethrough, both ends of the central shaft (16) extend out of the stirring shaft (13), the bottom end of the central shaft (16) is provided with a second bevel gear (17), and the top end is provided with a plurality of cross beams (18), the end of each cross beam (18) is bent downward by 90°, each cross beam (18) is provided with a plurality of layers of outer stirring rods (19) distributed in a staggered manner with the inner stirring rods (14), and the driving shaft of the motor (12) is provided with a driving bevel gear (20) drivingly connected with the first bevel gear (15) and the second bevel gear (17).

4. A drying apparatus for the production of pulse protein powder as claimed in claim 3, characterised in that: The bottom of the tank body (1) is provided with a transmission box (21) covering the first bevel gear (15), the second bevel gear (17) and the driving bevel gear (20).

5. A drying apparatus for the production of pulse protein powder as claimed in claim 1, characterized in that: The liquid level in the water storage tank (8) is higher than the end of the primary exhaust pipe (7).

6. A drying apparatus for the production of pulse protein powder as claimed in claim 1, characterized in that: The water storage tank (8) is provided with a liquid level gauge (22).

7. A drying apparatus for the production of pulse protein powder as claimed in claim 1, characterized in that: The tank body (1) is provided with a protective tower cover (23) matched with the gas inlet fan (6).

8. A drying apparatus for the production of pulse protein powder as claimed in claim 1, characterized in that: The primary exhaust pipe (7) is provided with a filter screen (24).

9. A drying apparatus for the production of pulse protein powder as claimed in claim 1, characterized in that: The heating assembly (2) comprises an electric heating wire arranged in the interlayer.

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