Drying device for dehydrating beans by adopting high-temperature steam

Abstract

The utility model relates to the technical field of bean drying devices, in particular to a drying device for dehydrating beans by adopting high-temperature steam, which comprises a steam generator for generating hot steam and a tank body for placing beans to be dried, an air bag is arranged at the bottom in the tank body, a pressure reducing valve is arranged at the output end of the air bag, and the steam generator is connected with the pressure reducing valve. And the output end of the steam generator extends into the tank body through a pipeline to be connected with the input end of the air bag, the tank body is further provided with an exhaust port, and when the beans are dried, the beans can be driven to shake, so that gaps are formed between the beans, and the drying process of the beans is more comprehensive and uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of bean drying devices, in particular to a drying device which uses high-temperature steam to dehydrate beans. Background Art

[0002] When processing existing bean foods, in order to remove the beany smell and facilitate subsequent grinding, the beans need to be dehydrated and dried first. In order to ensure that the beans are heated evenly and do not cause bacterial contamination to the beans during drying, high-temperature steam is the most suitable method available.

[0003] The problem with the existing technology is that most of the existing devices for drying beans using steam include a steam generator and a drying tank. The steam generator is connected to the interior of the drying tank through a pipeline, so that hot steam is passed into the interior of the drying tank to dry the beans. Taking the soybean drying process as an example, since the soybeans inside the drying tank are in a static state during the drying process, the positions where the soybeans are attached to each other cannot be fully contacted with the hot steam, resulting in uneven drying. Based on the above problems, it is necessary to design a drying device that uses high-temperature steam to dehydrate beans to solve the above problems. Utility Model Content

[0004] The utility model provides a drying device which uses high-temperature steam to dehydrate beans. When the beans are dried, the device can drive the beans to shake, so that gaps are generated between the beans, thereby making the drying process of the beans more comprehensive and uniform.

[0005] The technical problem solved by the utility model is achieved by the following technical solutions:

[0006] A drying device for dehydrating beans using high-temperature steam comprises a steam generator for generating hot steam and a tank body for placing the beans to be dried, an air bag is arranged at the bottom of the tank body, a pressure reducing valve is arranged at the output end of the air bag, the output end of the steam generator extends to the inside of the tank body through a pipeline and is connected to the input end of the air bag, and an exhaust port is also arranged on the tank body.

[0007] Preferably, the airbag has a corrugated outer surface, a sliding block is provided on the top of the airbag with corrugated outer surface, the sliding block is in sliding contact with the inner wall of the tank body, and the pressure reducing valve is located inside the sliding block.

[0008] Preferably, the pressure reducing valve includes an exhaust channel, a guide skeleton installed inside the exhaust channel, a valve stem that can slide along the center of the guide skeleton, a sealing plug at the top of the valve stem and used to seal the exhaust channel, a round bulge at the bottom of the valve stem, and a spring between the round bulge and the guide skeleton and sleeved on the outer surface of the valve stem.

[0009] Preferably, the shapes of the upper portion of the exhaust passage and the sealing plug are both arranged such that the radius gradually increases from bottom to top.

[0010] Preferably, a sheet-shaped blocking net is provided on the top of the exhaust passage.

[0011] Preferably, a sealing cap is provided on the top of the exhaust passage, and a ventilation hole is opened on the side wall of the sealing cap.

[0012] Preferably, it also includes a controller, which is used to control the steam generator to supply air to the airbag at a variable speed.

[0013] The beneficial effect of the utility model is that by arranging the air bag and the pressure reducing valve, the beans placed on the upper part of the air bag can be shaken up and down during the drying process, thereby generating gaps, which can fully contact with the hot steam and improve the uniformity of drying the beans. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation scheme of the utility model or the technical scheme in the prior art, the drawings required for use in the implementation scheme or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some implementation schemes of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 This is a schematic diagram of the structure of the utility model:

[0016] Figure 2 It is a front view schematic diagram of the utility model;

[0017] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0018] Figure 4 For this utility model Figure 3 A is an enlarged schematic diagram of the structure of the first embodiment;

[0019] Figure 5 For this utility model Figure 3 A is an enlarged schematic diagram of the structure of the second embodiment.

[0020] In the figure, 1. steam generator; 2. pipeline; 3. tank body; 4. storage chamber; 5. air bag; 6. sliding block; 7. exhaust channel; 8. pressure reducing valve; 801. guide frame; 802. valve stem; 803. sealing plug; 804. convex; 805. spring; 9. sealing net; 10. sealing cap; 11. exhaust port; 12. cover plate; 13. controller. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below with reference to specific illustrations.

[0022] refer to Figure 1 and Figure 2 A drying device for dehydrating beans using high-temperature steam comprises a steam generator 1 and a tank body 3. The output end of the steam generator 1 is connected to the input end of the tank body 3 through a pipe 2. When in use, the beans to be dried are first placed in the tank body 3, and then the tank body 3 is closed using a cover plate 12. Then the steam generator 1 transports hot steam to the inside of the tank body 3 through the pipe 2. After the hot steam contacts the beans, it takes away the moisture of the beans and is discharged from the exhaust port 11 on the tank body 3 (most of the exhaust ports 11 are arranged on the cover plate 12). The above is a description of the prior art of the utility model. It can be seen from the above description that since the beans inside the tank body 3 are in a static state, the beans will only stick together, resulting in the inability of the water vapor to fully dry the beans. Based on this problem, the utility model makes the following improvements.

[0023] refer to Figure 3 An air bag 5 is provided at the bottom of the tank body 3, and a pressure reducing valve 8 is provided at the output end of the air bag 5. The output end of the steam generator 1 extends to the inside of the tank body 3 through a pipeline 2 and is connected to the input end of the air bag 5. An exhaust port 11 is also provided on the tank body 3.

[0024] When in use, beans are placed inside the tank body 3, and the beans are above the airbag 5. When the steam generator 1 delivers hot steam to the airbag 5 inside the tank body 3, the airbag 5 will expand, and the expanded airbag 5 will become larger, driving the beans inside the tank body 3 to move upward. When the airbag 5 expands to have sufficient pressure inside (reaching the pressure for the pressure reducing valve 8 to release), the pressure reducing valve 8 will release the hot steam to make the airbag 5 smaller. At this time, the beans fall due to gravity, and thus a gap will be created when the beans move up and down. The hot steam can fully contact the beans through the gap, making the drying effect more uniform. At the same time, when the pressure inside the airbag 5 is lower than the pressure that can trigger the pressure reducing valve 8 to deflate, the pressure reducing valve 8 will automatically close, so that the airbag 5 is in a closed state, and the airbag 5 expands.

[0025] Furthermore, the airbag 5 adopts an airbag 5 with a corrugated outer surface, and a sliding block 6 is arranged on the top of the airbag 5 with a corrugated outer surface. The sliding block 6 is in sliding contact with the inner wall of the tank body 3, and the pressure reducing valve 8 is inside the sliding block 6. The use of the corrugated airbag 5 can make the airbag 5 expand in the up and down direction, driving the beans to move up and down, and the sliding block 6 can make the beans always be in the upper position inside the tank body 3, that is, inside the storage chamber 4 of the tank body 3.

[0026] Furthermore, the pressure reducing valve 8 includes an exhaust channel 7, a guide skeleton 801 installed inside the exhaust channel 7 (gas can pass through the guide skeleton 801), a valve stem 802 that can slide along the center of the guide skeleton 801, a sealing plug 803 at the top of the valve stem 802 and used to block the exhaust channel 7, a round protrusion 804 at the bottom of the valve stem 802, and a spring 805 between the round protrusion 804 and the guide skeleton 801 and sleeved on the outer surface of the valve stem 802. When the pressure inside the airbag 5 is relatively high, the gas inside the airbag 5 pushes the sealing plug 803 to a position where it is out of sealing contact with the exhaust channel 7, and the spring 805 is compressed. At this time, the airbag 5 is exhausted, and the beans fall due to gravity. As the internal pressure of the airbag 5 decreases, the spring 805 resets, driving the sealing plug 803 back to the position of blocking the exhaust channel 7. At this time, the airbag 5 can store gas to expand, thereby realizing the reciprocating shaking of the beans inside the tank body 3.

[0027] Furthermore, the shapes of the upper part of the exhaust channel 7 and the sealing plug 803 are both arranged with a radius gradually increasing from bottom to top. This arrangement enables the sealing plug 803 to seal the exhaust channel 7 more easily and avoids inaccurate positioning.

[0028] Furthermore, a sheet-shaped blocking net 9 is provided on the top of the exhaust channel 7, which can prevent beans from falling into the exhaust channel 7 and causing the valve stem 802 to get stuck. The blocking net 9 can also facilitate the hot steam inside the airbag 5 to enter the beans.

[0029] Furthermore, a sealing cap 10 is provided on the top of the exhaust channel 7, and air holes are provided on the side walls of the sealing cap 10. The use of the sealing cap 10 and the air holes on the side walls can allow hot steam to be sprayed in a circumferential direction, thereby increasing the contact area with the beans.

[0030] Furthermore, it also includes a controller 13, and the controller 13 is used to control the steam generator 1 to supply air to the air bag 5 with variable speed. In order to avoid the air supply speed of the steam generator 1 to the air bag 5 and the exhaust speed of the pressure reducing valve 8 tending to be balanced, thereby causing the air bag 5 to be able to move up and down within a small range, it is also necessary to design a controller 13. The controller 13 is used to control the steam generator 1 to supply air to the air bag 5 with variable speed. The effect of the variable speed air supply is used to avoid the air intake and air outlet of the air bag 5 tending to be balanced, resulting in a poor bean shaking effect.

[0031] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A drying device for dehydrating beans using high-temperature steam, comprising a steam generator (1) for generating hot steam and a tank (3) for placing beans to be dried, characterized in that: An air bag (5) is arranged at the bottom of the tank body (3), and a pressure reducing valve (8) is arranged at the output end of the air bag (5). The output end of the steam generator (1) extends to the inside of the tank body (3) through a pipeline (2) and is connected to the input end of the air bag (5). An exhaust port (11) is also arranged on the tank body (3).

2. The drying device for dehydrating beans using high-temperature steam according to claim 1, characterized in that: The airbag (5) is an airbag (5) with a corrugated outer surface, a sliding block (6) is arranged on the top of the airbag (5) with a corrugated outer surface, the sliding block (6) is in sliding contact with the inner wall of the tank body (3), and the pressure reducing valve (8) is located inside the sliding block (6).

3. A drying device for dehydrating beans using high-temperature steam according to claim 1 or 2, characterized in that: The pressure reducing valve (8) comprises an exhaust passage (7), a guide frame (801) installed inside the exhaust passage (7), a valve stem (802) that can slide along the center of the guide frame (801), a sealing plug (803) located at the top of the valve stem (802) and used to seal the exhaust passage (7), a round protrusion (804) located at the bottom of the valve stem (802), and a spring (805) located between the round protrusion (804) and the guide frame (801) and sleeved on the outer surface of the valve stem (802).

4. The drying device for dehydrating beans using high-temperature steam according to claim 3, characterized in that: The shapes of the upper portion of the exhaust passage (7) and the sealing plug (803) are both arranged such that the radius gradually increases from bottom to top.

5. The drying device for dehydrating beans using high-temperature steam according to claim 3, characterized in that: A sheet-shaped blocking net (9) is provided on the top of the exhaust passage (7).

6. The drying device for dehydrating beans using high-temperature steam according to claim 3, characterized in that: A blocking cap (10) is provided at the top of the exhaust passage (7), and a ventilation hole is provided on the side wall of the blocking cap (10).

7. A drying device for dehydrating beans using high-temperature steam according to claim 1 or 2, characterized in that: It also includes a controller (13), wherein the controller (13) is used to control the steam generator (1) to supply air to the air bag (5) at a variable speed.

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