A horizontal hot steam device for tea seed powder

Abstract

The present invention discloses a hot steaming device for tea seed powder, belonging to the technical field of tea oil production equipment. The device includes: a steaming cylinder with a double-layer structure, and a hot steaming space is formed inside it; both ends of the steaming cylinder are respectively provided with a feed inlet and a discharge outlet, wherein the feed inlet is connected with a hopper; the steaming cylinder is also provided with a steam inlet and a steam outlet, the steam inlet is connected to the outer wall of the steaming cylinder, the steam outlet is connected to the inner wall of the steaming cylinder, air holes are opened on the inner wall of the steaming cylinder, and both the steam inlet and the steam outlet are located at the rear end of the steaming cylinder; an auger, connected with a driving mechanism and passing through the steaming cylinder, for pushing the tea seed powder to move forward and ensuring that the tea seed powder is evenly heated; and a steam generator, connected to the steam inlet, for providing hot steam. The present invention is adapted to the traditional hot steaming - hydraulic pressing route, can realize the continuous hot steaming of tea seed powder and ensure that the hot steaming effect meets the standard, and meets the requirements of large-scale continuous production.

Description

Technical Field

[0001] The present invention relates to the technical field of tea oil production equipment, and particularly to a horizontal hot steaming device for tea seed powder. Background Art

[0002] Tea oil is favored by some consumers for its strong fragrance. At present, strongly fragrant tea oil is mainly produced and processed by two methods: frying seeds - screw pressing and hot steaming - hydraulic pressing. Among them, hot steaming - hydraulic pressing is the most traditional processing method. The tea oil processed by this process has the unique fragrant flavor of woody plants and is more popular among consumers who are used to tea oil. A key link in the hot steaming - hydraulic pressing process to form a strong tea oil fragrance is the hot steaming process after tea seeds are crushed.

[0003] Currently, the hot steaming process still mainly adopts the traditional intermittent wooden barrel hot steaming method, which has unstable process, consumes physical strength, and is difficult to meet the scenario of large - scale continuous industrial production.

[0004] In view of this, a new technical solution is needed to solve the above - mentioned technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a horizontal hot steaming device for tea seed powder to solve the problem that the traditional hot steaming process cannot meet large - scale continuous production.

[0006] To achieve the above purpose, the present invention adopts the following technical means:

[0007] A horizontal hot steaming device for tea seed powder includes:

[0008] A steaming cylinder with a double - layer structure, and a hot steaming space is formed inside it; feeding ports and discharging ports are respectively arranged at both ends of the steaming cylinder, and a hopper is connected to the feeding port; the steaming cylinder is also provided with a steam inlet and a steam outlet. The steam inlet is connected to the outer wall of the steaming cylinder, the steam outlet is connected to the inner wall of the steaming cylinder, air holes are opened on the inner wall of the steaming cylinder, and both the steam inlet and the steam outlet are located at the rear end of the steaming cylinder;

[0009] A screw conveyor, connected with a driving mechanism and passing through the steaming cylinder, for pushing the tea seed powder to move forward; and

[0010] A steam generator, connected to the steam inlet, for providing hot steam.

[0011] As a further improvement, a jacket is sleeved on the middle - rear end of the steaming cylinder, and the inside of the jacket is filled with hot steam during operation to form a hot zone; the front end of the steaming cylinder without the jacket forms a cold zone.

[0012] As a further improvement, on - line moisture detectors are installed at both the front end and the rear end of the steaming cylinder.

[0013] As a further improvement, a cleaning port is provided on the side wall of the steaming cylinder.

[0014] As a further improvement, a sewage discharge port is provided below the front end of the steaming cylinder, and the sewage discharge port is connected to the outer wall of the steaming cylinder.

[0015] As a further improvement, a steam trap is connected to the sewage discharge port.

[0016] As a further improvement, an on-line temperature detector is installed at the rear end of the steaming cylinder.

[0017] As a further improvement, the shaft of the auger is connected between the front and rear walls of the steaming cylinder through bearings.

[0018] As a further improvement, the drive structure includes a motor, and the motor is directly connected to the auger through a coupling.

[0019] As a further improvement, the air holes are distributed in the lower part of the inner wall of the steaming cylinder.

[0020] Compared with the prior art, the present invention brings the following technical effects:

[0021] The horizontal tea seed powder hot steaming device of the present invention is adapted to the traditional hot steaming - hydraulic pressing route. By setting the steaming cylinder and the auger, continuous hot steaming of tea seed powder can be achieved. During this process, the double-layer structure of the steaming cylinder can ensure that the space between the inner and outer walls is always filled with hot steam, ensuring that the temperature of the hot steaming space remains constant. The air holes opened on the inner wall allow the steam to smoothly enter the hot steaming space, and then fully contact and be absorbed by the tea seed powder, ensuring the final hot steaming effect and meeting the requirements of large-scale continuous production. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0023] Figure 1 Shows a schematic structural diagram of a preferred embodiment of the present invention;

[0024] Figure 2 Shows a cross-sectional schematic diagram of the steaming cylinder of the present invention.

[0025] Main element symbol description:

[0026] Steaming cylinder - 10; Hot steaming space - 11; Feed inlet - 12; Hopper - 121; Discharge outlet - 13; Steam inlet - 14; Steam outlet - 15; Air hole - 16; Cleaning port - 17; Drain port - 18; Steam trap - 19; Screw conveyor - 20; Rotating shaft - 21; Spiral blade - 22; Driving mechanism - 30; On - line moisture detector - 40; On - line temperature detector - 50. Detailed implementation mode

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0028] In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. The embodiments of the present invention are described in detail below. The examples of the embodiments are shown in the accompanying drawings, in which the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout.

[0029] Embodiment

[0030] Please refer to Figure 1 and Figure 2 , this embodiment provides a horizontal hot steaming device for tea seed powder, including a steaming cylinder 10, a screw conveyor 20 and a steam generator. Among them, the steam generator and its connection components are common industrial devices and are not shown in the figure, but this does not affect the understanding of the present invention by those skilled in the art.

[0031] In this embodiment, the steaming cylinder 10 has a long - straight double - layer structure, and a hot steaming space 11 is formed inside it. Dimensions such as the diameter, length, and thickness of the cylinder wall of the cylinder are determined according to the specific output and can be set to different specifications. The two ends of the steaming cylinder 10 are respectively provided with a feed inlet 12 and a discharge outlet 13. Among them, the feed inlet 12 opens upward, and a hopper 121 is connected to it. It is the inlet for introducing tea seed powder into the steaming cylinder 10, and the feed inlet 12 is located at the left end of the steaming cylinder 10; the discharge outlet 13 opens downward and is located at the right end of the steaming cylinder 10.

[0032] The steaming cylinder 10 is also provided with a steam inlet 14 and a steam outlet 15. The steam inlet 14 is connected to the outer wall of the steaming cylinder 10, and the steam outlet 15 is connected to the inner wall of the steaming cylinder 10. Both the steam inlet 14 and the steam outlet 15 are located at the rear end of the steaming cylinder 10. Air holes 16 are opened on the inner wall of the steaming cylinder 10. The air holes 16 communicate the interlayer and the hot steaming space 11 inside the steaming cylinder 10, and are the channels for hot steam to enter the hot steaming space 11. The steam outlet 15 is located on the right side of the jacket, and the purpose is to let the steam discharge to the right end, which can prevent the powder at the feed end from jamming with the screw conveyor 20.

[0033] As a further improvement, the air holes 16 are distributed in the lower part of the inner wall of the steaming cylinder 10. For example, in this embodiment, seven air holes 16 are drilled at intervals. The seven air holes 16 are arranged circumferentially along the inner wall of the steaming cylinder 10, and multiple rows of air holes 16 are provided on the entire inner wall to ensure that steam can enter the interior of the steaming cylinder 10 from between the interlayers. When the tea seed powder is transported in the steaming cylinder 10, it does not fill the entire hot steaming space 11, but is concentrated in the lower part of the steaming cylinder 10. Therefore, the position of the openings on the inner wall of the steaming cylinder 10 should not exceed 1 / 3 of its height. If the opening position is too high, the material cannot cover all the openings, which will cause a large amount of steam to escape from the positions without material coverage (the pressure at the positions without material coverage is relatively small and the steam is more likely to pass through), resulting in an inability to achieve the hot steaming effect. In this embodiment, the air holes 16 are opened in the lower part of the inner wall, and the material can completely cover the air holes 16. When the steam enters the hot steaming space 11, it comes into full contact with the tea seed powder, which is beneficial to ensuring the hot steaming effect.

[0034] In this embodiment, the auger 20 is connected to a driving mechanism 30 and penetrates through the steaming cylinder 10 for pushing the tea seed powder forward. The auger 20 has a rotating shaft 21 and spiral blades 22 connected to the surface of the rotating shaft 21. Driven by the driving mechanism 30, the auger 20 rotates, and the tea seed powder is driven forward by the spiral blades 22.

[0035] Furthermore, the rotating shaft 21 of the auger 20 is connected between the front and rear walls of the steaming cylinder 10 through bearings, and the auger 20 is coaxially arranged with the steaming cylinder 10.

[0036] Specifically, the driving mechanism 30 in this embodiment is a motor, and the motor is directly connected to the end of the rotating shaft 21 of the auger 20 through a coupling. This direct connection method has the advantages of compact structure, high sensitivity, and high transmission efficiency. Of course, in some other embodiments, belt or chain drive connection methods can also be used.

[0037] Furthermore, the helix angle of the spiral blades 22 is set to 25°. The surface of the blades is polished and the edges are rounded, so that the wet powdery material can be transported better, avoiding sticking and agglomeration, which may cause the auger 20 to jam. This can not only ensure the transportation efficiency but also ensure the full contact between the tea seed powder and the steam.

[0038] In this embodiment, the steam generator is connected to the steam inlet 14 for providing hot steam. It should be noted that this embodiment does not limit the steam generator, and any existing steam generating device in the prior art can be used.

[0039] In this embodiment, the double-layer structure of the steaming cylinder 10 is formed as follows: a jacket is sleeved outside the middle and rear ends of the steaming cylinder 10. The space between the jacket and the inner wall of the steaming cylinder 10 is a hollow structure, and this hollow structure is filled with hot steam during operation to form a hot zone; while the front end of the steaming cylinder 10 is not provided with a jacket structure, thus forming a cold zone.

[0040] In this embodiment, the "cold zone" formed at the front end of the steaming cylinder 10 is separated from the "hot zone" formed at the middle and rear ends of the steaming cylinder 10. Since the material transportation direction is from left to right, it avoids a large amount of steam overflowing from the front end, which may cause the tea seed powder to agglomerate and block the feeding port 12. The discharging port 13 is located in the hot zone, with no significant temperature difference, which can reduce the formation of condensed water and affect the moisture content of the material.

[0041] Furthermore, the steaming cylinder 10 is installed with the left end lower than the right end, and the best angle with the ground is 15°. This enables the steam to be discharged from the right steam outlet 15 along the material transportation direction, further reducing the situation where the tea seed powder agglomerates and blocks the feeding port 12 due to steam overflow at the feeding port 12 end.

[0042] Specifically in this embodiment, on-line moisture detectors 40 are installed at both the front end and the rear end of the steaming cylinder 10, which are used to detect the moisture content of the tea seed powder at the feeding port 12 and the discharging port 13 respectively, so as to judge the hot steaming effect.

[0043] Specifically in this embodiment, two cleaning ports 17 are provided on the side wall of the steaming cylinder 10. The openings are all in the horizontal direction, and the diameter is slightly smaller than the inner diameter of the steaming cylinder 10, thus facilitating the cleaning of the inside of the steaming cylinder 10.

[0044] Specifically in this embodiment, a sewage discharge port 18 is provided below the front end of the steaming cylinder 10. The sewage discharge port 18 is connected to the outer wall of the steaming cylinder 10 and is used to discharge the sewage between the interlayers. More specifically, a steam trap 19 is connected to the sewage discharge port 18 and is used to discharge the condensed water.

[0045] Specifically in this embodiment, an on-line temperature detector 50 is installed at the rear end of the steaming cylinder 10, which is used to detect in real time whether the temperature inside the steaming cylinder 10 meets the standard, and then adjust the corresponding working components. Specifically, the motor in this embodiment is equipped with a frequency converter, and the transportation speed of the material and the steam volume of the steam generator are controlled by adjusting the screw conveyor speed, so as to achieve precise control of the moisture and temperature of the tea seeds.

[0046] It is worth mentioning that the steaming cylinder 10 in this embodiment is in a high-temperature state during use. Therefore, a heat insulation layer, such as a heat insulation layer composed of heat insulation cotton and aluminum foil paper, can be coated on the outside of the steaming cylinder 10. This can not only prevent personnel from being scalded, but also play a role in preventing the heat in the hot steaming space from dissipating, reducing energy consumption.

[0047] In summary, the essence of the horizontal tea seed powder hot steaming device of the present invention is steam heating. The steam directly passes through the material, resulting in higher thermal efficiency. At the same time, part of the moisture in the steam can be steamed into the tea seed powder to adjust the moisture of the tea seed powder and soften the cell wall of the tea seeds. When the cell wall of the tea seeds is softened, the oil is more easily squeezed out from the cells. Moreover, appropriate moisture can enable the tea seeds to form a good internal structure during subsequent processing, which is beneficial to the flow and aggregation of the oil and is suitable for the traditional hot steaming - hydraulic pressing route.

[0048] By setting the steaming cylinder 10 and the auger 20, continuous hot steaming of the tea seed powder can be achieved. During this process, the double-layer structure of the steaming cylinder 10 can ensure that the space between the inner and outer walls is always filled with hot steam, ensuring that the temperature of the hot steaming space 11 remains constant. The air holes 16 opened on the inner wall allow the steam to smoothly enter the hot steaming space 11, and then come into full contact with and be absorbed by the tea seed powder, ensuring the final hot steaming effect and meeting the requirements of large-scale continuous production.

[0049] The steaming cylinder 10 of the present invention is provided with a "cold zone" and a "hot zone", which are separated from each other. Since the transportation direction of the material is from left to right, it avoids a large amount of steam overflowing from the front end, resulting in the tea seed powder agglomerating and blocking the feeding port 12. The discharging port 13 is located in the hot zone, with no significant temperature difference, which can reduce the formation of condensed water and affect the moisture content of the material, further ensuring the continuity of production.

[0050] Obviously, it is not necessary and impossible to list all the implementation manners here. And the obvious changes or variations derived therefrom still fall within the protection scope of the present invention.

Claims

1. A horizontal tea seed powder steaming device, characterized in that: include: The steam drum has a double-layer structure, and a hot steaming space is formed inside the steam drum; a feed port and a discharge port are respectively provided at both ends of the steam drum, wherein the feed port is connected to a hopper; the steam drum is also provided with a steam inlet and a steam outlet, wherein the steam inlet is connected to the outer wall of the steam drum, and the steam outlet is connected to the inner wall of the steam drum, and air holes are opened on the inner wall of the steam drum, and the air holes are distributed at the lower part of the inner wall of the steam drum, and the steam inlet and the steam outlet are both located at the rear end of the steam drum; An auger, connected to a driving mechanism and inserted into the steaming cylinder, is used to push the tea seed powder forward; and The steam generator is connected to the steam inlet and is used for providing hot steam.

2. The horizontal tea seed powder steaming device according to claim 1, characterized in that: The middle and rear ends of the steam drum are provided with a jacket, and the interior of the jacket is filled with hot steam to form a hot zone during operation; the front end of the steam drum without a jacket forms a cold zone.

3. The horizontal tea seed powder steaming device according to claim 1, characterized in that: The front end and the rear end of the steaming drum are both equipped with online moisture detectors.

4. The horizontal tea seed powder steaming device according to claim 1, characterized in that: A cleaning opening is provided on the side wall of the steaming cylinder.

5. The horizontal tea seed powder steaming device according to claim 1, characterized in that: A sewage outlet is provided below the front end of the steaming cylinder, and the sewage outlet is connected to the outer wall of the steaming cylinder.

6. The horizontal tea seed powder steaming device according to claim 5, characterized in that: The sewage outlet is connected with a steam trap.

7. The horizontal tea seed powder steaming device according to claim 1, characterized in that: An online temperature detector is installed at the rear end of the steaming drum.

8. The horizontal tea seed powder steaming device according to claim 1, characterized in that: The shaft of the auger is connected between the front and rear walls of the steaming cylinder through a bearing.

9. The horizontal tea seed powder steaming device according to claim 1, characterized in that: The driving structure comprises a motor, and the motor is directly connected to the auger through a coupling.

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