Bran drying production line

Abstract

The utility model discloses a bran drying production line which comprises a feeding system, a composite drying system and a conveying system. The feeding system comprises a first feeding mechanism arranged at the top of the first workshop and a second feeding mechanism arranged at the top of the second workshop; the composite drying system is arranged on the first floor of a first workshop and comprises oil furnace drying equipment and microwave drying equipment which are arranged in series. The conveying system comprises a first conveying mechanism and a second conveying mechanism, the first conveying mechanism comprises a first blanking pipe communicated with the first feeding mechanism and the oil furnace drying equipment, the second conveying mechanism comprises a Roots blower, a pressure feeding pipeline, a first cyclone separator and a second blanking pipe, and the pressure feeding pipeline is communicated with the second feeding mechanism and the first cyclone separator; the Roots blower is used for generating compressed air so that bran can be conveyed along the compression pipeline, and the first cyclone separator is arranged over the oil furnace drying equipment and communicated with the oil furnace drying equipment through a second discharging pipe. Therefore, efficient dehydration and sterilization can be achieved, and the overall yield of bran drying can be improved.

Description

Technical Field

[0001] This utility model relates to the field of bran production, and in particular to a bran drying production line. Background Technology

[0002] Bran drying is a crucial step in food processing. Traditional methods primarily rely on single-furnace drying, which, while ensuring even heating and minimizing nutrient loss, suffers from low drying efficiency and difficulty in bacterial control. Furnace drying struggles to quickly reduce moisture content to the ideal level (≤12%) and fails to effectively inhibit microbial growth, leading to excessive total bacterial counts (>3000 CFU / g). While microwave drying can rapidly sterilize and deeply dehydrate, the high moisture content of the bran can cause localized overheating, affecting quality. Furthermore, existing bran drying systems typically place the production line above the drying equipment, limiting drying capacity to the supply capacity of a single workshop. This prevents the utilization of production capacity from other workshops' lines. Utilizing the capacity of other workshops' lines would require adding drying equipment to each workshop, increasing costs, occupying more space, and reducing overall production efficiency. To address these technological bottlenecks, there is an urgent need to develop a novel bran drying production line that can achieve efficient dehydration and sterilization while simultaneously increasing overall bran drying capacity. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a bran drying production line that can achieve efficient dehydration and sterilization while also increasing the overall production capacity of bran drying.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A bran drying production line, including

[0006] The material receiving system includes a first material receiving mechanism located at the top of the first workshop and a second material receiving mechanism located at the top of the second workshop;

[0007] The composite drying system is located on the first floor of the first workshop and includes oil furnace drying equipment and microwave drying equipment arranged in series.

[0008] The conveying system includes a first conveying mechanism and a second conveying mechanism. The first conveying mechanism includes a first discharge pipe connecting the first feeding mechanism and the oil furnace drying equipment. The second conveying mechanism includes a Roots blower, a pressure conveying pipe, a first cyclone separator, and a second discharge pipe. The pressure conveying pipe connects the second feeding mechanism and the first cyclone separator. The Roots blower is used to generate compressed air to convey bran along the compression pipe. The first cyclone separator is located directly above the oil furnace drying equipment and is connected to it through the second discharge pipe. It is used to separate the bran from the airflow and allow it to fall into the oil furnace drying equipment by gravity.

[0009] A bran drying production line according to an embodiment of this utility model has at least the following beneficial effects: It adopts a composite drying system design, organically combining oil furnace drying and microwave drying technologies, fully leveraging the advantages of both drying methods. This ensures uniform heating of the bran and retention of nutrients, while also achieving rapid dehydration and effective sterilization. By setting up a distributed feeding system and a dual-mode conveying mechanism, it achieves synergistic utilization of multi-workshop production capacity, significantly improving overall production efficiency. This design avoids the limitations of traditional single-workshop feeding modes, reduces redundant equipment investment, and optimizes production space utilization. Simultaneously, the combination of pneumatic and gravity conveying ensures the continuity and stability of material transport, and the rational arrangement of the cyclone separator further improves material separation efficiency. The entire system operates stably and reliably, significantly increasing production capacity while ensuring product quality, providing reliable technical support for large-scale production.

[0010] According to some embodiments of the present invention, a second cyclone separator and a centrifugal fan are provided above the oil furnace drying equipment and the microwave drying equipment. The second cyclone separator is provided with a lifting pipe connected to the oil furnace drying equipment. The centrifugal fan lifts the bran of the oil furnace drying equipment to the second cyclone separator through negative pressure. A third discharge pipe is provided at the bottom of the second cyclone separator and connected to the microwave drying equipment.

[0011] The benefits are that the installation of the second cyclone separator and centrifugal fan enables automatic transfer of materials between drying equipment, improves the continuity of the production process, and reduces manual intervention.

[0012] According to some embodiments of the present invention, both the oil furnace drying equipment and the microwave drying equipment are equipped with a temperature sensor and a temperature control module.

[0013] The advantage is that the configuration of the temperature sensor and control module enables precise control of the drying temperature, ensuring the stability of product quality.

[0014] According to some embodiments of the present invention, the microwave drying equipment is provided with a smoke exhaust pipe, and a smoke sensing sensor is provided inside the smoke exhaust pipe.

[0015] The advantage is that the smoke sensor enhances the safety of the equipment, issuing an alarm when the bran temperature is too high and smoke is generated, thus providing timely warning of potential risks.

[0016] According to some embodiments of the present invention, the microwave drying equipment is provided with a conveyor belt for conveying bran.

[0017] The advantage is that the conveyor belt structure ensures that the bran is heated evenly during microwave drying, avoiding localized overheating that could affect product quality.

[0018] According to some embodiments of the present invention, the conveyor belt is equipped with a speed detection sensor.

[0019] The advantage is that the speed detection sensor enables real-time monitoring of the conveyor speed, preventing the conveyor belt from rotating too fast and providing data support for process optimization.

[0020] According to some embodiments of the present invention, a cooling fan is provided at the rear of the microwave drying equipment.

[0021] The benefits are that the cooling fan speeds up product cooling, improves production efficiency, and ensures the final product quality.

[0022] According to some embodiments of the present invention, the pressurized conveying pipeline includes a transverse conveying pipe connecting the first workshop and the second workshop, a vertical conveying pipe connecting the transverse conveying pipe and the first cyclone separator, the Roots blower being located in the second workshop and disposed at the end of the transverse conveying pipe, and the second material receiving mechanism being disposed above the transverse conveying pipe and connected to the top of the transverse conveying pipe.

[0023] The advantage is that the combined design of horizontal and vertical conveying pipes optimizes the material conveying path and improves conveying efficiency.

[0024] According to some embodiments of the present invention, a control valve is provided at the connection between the second feeding mechanism and the transverse conveying pipe.

[0025] The advantage is that the control valve enables precise control of the incoming material quantity, ensuring the stability of the system operation.

[0026] According to some embodiments of the present invention, an exhaust pipe is provided above the first cyclone separator.

[0027] The benefits are that the exhaust pipe design effectively separates airflow and materials, improves the working environment, and reduces dust pollution.

[0028] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0029] To more clearly illustrate the technical solutions of the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic diagram of an embodiment of the present utility model;

[0031] Figure 2 for Figure 1 Internal diagram of a microwave drying equipment;

[0032] Figure 3 for Figure 1 Cross-sectional view of the central exhaust pipe.

[0033] Reference numerals: First feeding mechanism 100, Second feeding mechanism 110, Oil furnace drying equipment 120, Microwave drying equipment 130, First discharge pipe 140, Roots blower 150, Pressure conveying pipe 160, First cyclone separator 170, Second discharge pipe 180, Second cyclone separator 190, Centrifugal blower 200, Lifting pipe 210, Third discharge pipe 220, Smoke sensor 230, Conveyor belt 240, Speed ​​detection sensor 250, Cooling fan 260, Horizontal conveying pipe 270, Vertical conveying pipe 280, Control valve 290, Exhaust pipe 300, Smoke exhaust pipe 310. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.

[0036] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" and "second" are mentioned, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the order of the indicated technical features.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation, connection, and linkage" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0038] The following is for reference. Figures 1-3 A bran drying production line is described in detail with reference to a specific embodiment. It is to be understood that the following description is merely illustrative and not intended to limit the scope of the invention.

[0039] like Figure 1 As shown, a bran drying production line includes a feeding system, a compound drying system, and a conveying system.

[0040] The feeding system includes a first feeding mechanism 100 located at the top of the first workshop and a second feeding mechanism 110 located at the top of the second workshop. The composite drying system is located on the first floor of the first workshop and includes an oil furnace drying device 120 and a microwave drying device 130 arranged in series. The conveying system includes a first conveying mechanism and a second conveying mechanism. The first conveying mechanism includes a first discharge pipe 140 connecting the first feeding mechanism 100 and the oil furnace drying device 120. The second conveying mechanism includes a Roots blower 150, a pressure conveying pipe 160, a first cyclone separator 170, and a second discharge pipe 180. The pressure conveying pipe 160 connects the second feeding mechanism 110 and the first cyclone separator 170. The Roots blower 150 is used to generate compressed air to convey bran along the compression pipe. The first cyclone separator 170 is located directly above the oil furnace drying device 120 and is connected to it through the second discharge pipe 180. It is used to separate the bran from the airflow and then let it fall into the oil furnace drying device 120 by gravity. The system employs a composite drying system design, organically combining oil furnace drying and microwave drying technologies to fully leverage the advantages of both methods. This ensures uniform heating of the bran and retention of nutrients while achieving rapid dehydration and effective sterilization. By incorporating a distributed material feeding system and a dual-mode conveying mechanism, the system enables the coordinated utilization of production capacity across multiple workshops, significantly improving overall production efficiency. This design avoids the limitations of traditional single-workshop material supply models, reduces redundant equipment investment, and optimizes production space utilization. Simultaneously, the combination of pneumatic and gravity conveying ensures the continuity and stability of material transport, while the rational arrangement of cyclone separators further enhances material separation efficiency. The entire system operates stably and reliably, significantly increasing production capacity while maintaining product quality, providing reliable technical support for large-scale production.

[0041] Specifically, a second cyclone separator 190 and a centrifugal fan 200 are installed above the oil furnace drying equipment 120 and the microwave drying equipment 130. The second cyclone separator 190 is connected to the oil furnace drying equipment 120 via a lifting pipe 210. The centrifugal fan 200 lifts the bran from the oil furnace drying equipment 120 to the second cyclone separator 190 using negative pressure. A third discharge pipe 220 is installed at the bottom of the second cyclone separator 190 and connected to the microwave drying equipment 130. The installation of the second cyclone separator 190 and the centrifugal fan 200 enables automatic material transfer between the drying equipment, improving the continuity of the production process and reducing manual intervention. In addition, both the oil furnace drying equipment 120 and the microwave drying equipment 130 are equipped with temperature sensors and temperature control modules (not shown in the figure). The configuration of temperature sensors and control modules enables precise control of the drying temperature, ensuring the stability of product quality. Moreover, the microwave drying equipment 130 is equipped with an exhaust pipe 310, such as... Figure 3As shown, a smoke sensor 230 is installed inside the exhaust pipe 310. The smoke sensor 230 enhances the safety performance of the equipment operation, and issues an alarm when the bran temperature is too high and smoke is generated, which can provide timely warning of potential risks.

[0042] Furthermore, such as Figure 2 As shown, the microwave drying equipment 130 has a conveyor belt 240 for transporting bran. The structure of the conveyor belt 240 ensures that the bran is heated evenly during the microwave drying process, avoiding localized overheating that could affect product quality. Specifically, a speed detection sensor 250 is installed on the conveyor belt 240. The speed detection sensor 250 enables real-time monitoring of the conveying speed, preventing the conveyor belt 240 from rotating too fast and providing data support for process optimization. It is understood that a cooling fan 260 is installed at the rear of the microwave drying equipment 130. The cooling fan 260 accelerates the product cooling rate, improves production efficiency, and ensures the final product quality.

[0043] It should be said that, as Figure 1 As shown, the pressurized conveying pipeline 160 includes a horizontal conveying pipe 270 connecting the first workshop and the second workshop, and a vertical conveying pipe 280 connecting the horizontal conveying pipe 270 and the first cyclone separator 170. A Roots blower 150 is located in the second workshop at the end of the horizontal conveying pipe 270. A second feeding mechanism 110 is located above the horizontal conveying pipe 270 and connected to its top. The combined design of the horizontal conveying pipe 270 and the vertical conveying pipe 280 optimizes the material conveying path and improves conveying efficiency. Furthermore, a control valve 290 is installed at the connection between the second feeding mechanism 110 and the horizontal conveying pipe 270. The control valve 290 enables precise control of the incoming material quantity, ensuring the stability of the system operation. Moreover, an exhaust pipe 300 is located above the first cyclone separator 170. The design of the exhaust pipe 300 effectively separates airflow and material, improving the working environment and reducing dust pollution.

[0044] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "illustrative embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0045] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A bran drying production line, characterized in that, The application relates to a composite drying system and a method for drying bran. The composite drying system comprises a first feeding mechanism (100) arranged on the top of a first workshop and a second feeding mechanism (110) arranged on the top of a second workshop; a composite drying system arranged on the first floor of the first workshop, which comprises an oil furnace drying device (120) and a microwave drying device (130) arranged in series; a conveying system, which comprises a first conveying mechanism and a second conveying mechanism, wherein the first conveying mechanism comprises a first falling pipe (140) connected with the first feeding mechanism (100) and the oil furnace drying device (120), the second conveying mechanism comprises a Roots blower (150), a pressure conveying pipe (160), a first cyclone separator (170) and a second falling pipe (180), the pressure conveying pipe (160) is connected with the second feeding mechanism (110) and the first cyclone separator (170), the Roots blower (150) is used for generating compressed air to convey bran along the pressure conveying pipe, and the first cyclone separator (170) is arranged directly above the oil furnace drying device (120) and is connected with the oil furnace drying device (120) through the second falling pipe (180) and is used for separating bran from air flow and then making the bran fall into the oil furnace drying device (120) through gravity. A second cyclone separator (190) and a centrifugal fan (200) are arranged above the oil furnace drying device (120) and the microwave drying device (130), the second cyclone separator (190) is provided with a lifting pipe (210) connected with the oil furnace drying device (120), the centrifugal fan (200) lifts bran in the oil furnace drying device (120) to the second cyclone separator (190) through negative pressure, and the bottom of the second cyclone separator (190) is provided with a third falling pipe (220) connected with the microwave drying device (130). The oil furnace drying device (120) and the microwave drying device (130) are respectively provided with temperature sensors and temperature control modules.

2. A bran drying production line according to claim 1, characterized in that, The microwave drying device (130) is provided with a smoke exhaust pipe (310), and a smoke sensing sensor (230) is arranged in the smoke exhaust pipe.

3. A bran drying production line according to claim 1, characterized in that, The microwave drying device (130) is internally provided with a conveying belt (240) used for conveying bran.

4. The bran drying production line according to claim 1, characterized in that, A speed detection sensor (250) is arranged on the conveying belt (240).

5. The bran drying production line according to claim 1, characterized in that, A cooling fan (260) is arranged at the rear section of the microwave drying device (130).

6. A bran drying production line according to claim 5, characterised in that, The pressure conveying pipe (160) comprises a horizontal conveying pipe (270) connecting the first workshop and the second workshop and a vertical conveying pipe (280) connecting the horizontal conveying pipe (270) and the first cyclone separator (170), the Roots blower (150) is arranged at the end of the horizontal conveying pipe (270) in the second workshop, and the second feeding mechanism (110) is arranged above the horizontal conveying pipe (270) and is connected with the top of the horizontal conveying pipe (270).

7. A bran drying production line according to claim 1, characterized in that, A control valve (290) is arranged at the connection position of the second feeding mechanism (110) and the horizontal conveying pipe (270).

8. A bran drying production line according to claim 1, characterized in that, An exhaust pipe (300) is arranged above the first cyclone separator (170).

9. A bran drying production line according to claim 8, characterized in that, ​ 10. A bran drying production line according to claim 1, characterized in that, ​

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