Microwave equipment for processing whole grain powder

Abstract

The utility model relates to the technical field of grain processing, and provides microwave equipment for processing whole grain powder, which comprises a box body, an upper rotary drum, a lower rotary drum, a feeding roller and a discharging roller, the upper rotary drum and the lower rotary drum are respectively arranged in the box body, the feeding roller and the discharging roller are respectively arranged at two ends of the box body, and the feeding roller, the discharging roller, the upper rotary drum and the lower rotary drum are in transmission connection through a conveyor belt. A driving device for driving the conveying belt to operate is arranged outside the box body; the lower rotary drum comprises a drum frame, a friction sleeve and a movable body; according to the utility model, the rotary drum rotates along with the friction action of the conveyor belt, the flexible contact strip is forced to be in contact with the surface of the conveyor belt along with the rotation action of the roller sleeve, and the flexible contact strip on the surface of the roller sleeve is flexible, so that the flexible contact strip slightly slides relative to the contact surface of the conveyor belt under the extrusion action; and residual powder on the surface of the conveying belt can be scraped off through the friction effect of the flexible contact strips.

Description

A microwave device for processing whole grain powder Technical Field

[0001] This utility model relates to the field of grain processing technology, specifically to a microwave device for processing whole grain powder. Background Technology

[0002] Microwave processing of whole grain powder is a method that uses microwave technology to process whole grains into powdered products. By evenly spreading the pre-crushed whole grain powder on the conveyor belt of a microwave device, and controlling parameters such as microwave power and processing time, the whole grain powder is heated, cooked, and sterilized in a microwave field.

[0003] For example, the patent technology disclosed in CN208523693U discloses an instant grain cooking device, which includes a box body, with a motor fixed to the outer end of the box body. The outer end of the rotating drum has slots evenly spaced around its circumference, and scrapers are inserted into the slots. The scrapers are connected to the bottom of the inner cavity of the slots by springs. The mixed grain powder is put into the conveyor belt from the left end and moves to the right under the drive of the conveyor belt. It is heated by a microwave generator and then bends when it reaches the position of the rotating rod. The hardened grain powder is relatively hard and will be lifted up and fall onto the conveyor belt on the right side of the rotating rod to be sent out. The remaining grain powder that does not lift up sticks to the conveyor belt and moves along it. At this time, the lower end of the conveyor belt between the rotating rod and the rotating drum tilts to the left, and the scraper on the rotating drum extends under the action of the spring to scrape it, ensuring that the grain powder on the conveyor belt does not stick to it, ensuring the smoothness of the conveyor belt, preventing the equipment from jamming, and avoiding waste.

[0004] However, the above-mentioned grain ripening equipment still has the following problems: The equipment has slots evenly spaced on the outer circumference of the rotating drum, and the scraper is elastically connected to the slot by springs. Since there are inevitably gaps between the scraper and the slot, tiny powder particles can enter the slot through the gaps, which affects the extensibility of the scraper on the one hand, and also makes it easy for material to get stuck and breed bacteria on the other hand. Summary of the Invention

[0005] This invention proposes a microwave device for processing grain powder, which solves the problem in the prior art that tiny powder particles can enter the slot through gaps.

[0006] The technical solution of this utility model is as follows: A microwave device for processing grain powder includes a box, an upper rotating drum and a lower rotating drum disposed inside the box, and a feeding roller and a discharging roller disposed at both ends of the box. The feeding roller, the discharging roller, the upper rotating drum and the lower rotating drum are connected by a conveyor belt. A drive device for driving the conveyor belt is provided outside the box. The lower rotating drum includes a frame.

[0007] The outer fixed sleeve of the cylinder frame is equipped with a friction sleeve that can scrape off residual powder from the surface of the conveyor belt when it rotates;

[0008] The tube frame is equipped with several movable bodies that can continuously roll during rotation, thus promoting the shaking of the tube frame.

[0009] Preferably, the cylinder frame includes a roller shaft, the two ends of which are rotatably connected to the housing. Limiting discs are fixed to the outer sides of the two ends of the roller shaft, and a cylinder body concentrically arranged with the roller shaft is fixed between the two limiting discs. Several partitions distributed at equal angles are fixed between the roller shaft and the cylinder body.

[0010] Preferably, the partition is arranged radially relative to the roller shaft and the cylinder body.

[0011] Preferably, an annular cavity is provided between the roller and the cylinder body, and the partition plate divides the annular cavity into multiple independent fan-shaped cavities.

[0012] Preferably, the movable body includes rolling balls, which are evenly distributed in rows within multiple fan-shaped cavities.

[0013] Preferably, the friction sleeve includes a roller sleeve, which is sleeved outside the cylinder body, and the surface of the roller sleeve is provided with a plurality of evenly distributed flexible contact strips.

[0014] Preferably, the flexible contact strip is arc-shaped and integrally formed with the roller sleeve.

[0015] Preferably, a plurality of microwave generators are arranged on the top of the housing along the conveyor belt's conveying direction.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This utility model uses the friction of the conveyor belt to make the drum rotate in the same direction, which forces the flexible contact strip to contact the surface of the conveyor belt as the roller sleeve rotates. Due to the flexible nature of the flexible contact strip on the surface of the roller sleeve, the flexible contact strip is squeezed and slides slightly relative to the contact surface of the conveyor belt. Then, the friction of the flexible contact strip can scrape off the powder remaining on the surface of the conveyor belt.

[0018] 2. In this invention, during the rotation of the cylinder frame, the rolling balls in each sector cavity continuously roll under the action of gravity. The rolling balls located at the lower position roll along the partition to impact the cylinder body, while the rolling balls located at the higher position roll along the partition to impact the roller shaft, thereby promoting the vibration of the cylinder frame. Since the flexible contact strip is arc-shaped and integrally formed with the roller sleeve, as the roller sleeve rotates, it can shake the powder scraped off by the roller sleeve onto the conveyor belt on the right side of the lower rotating cylinder, so as to facilitate subsequent microwave heating treatment and delivery out of the box. Attached Figure Description

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] Figure 1 is a schematic diagram of the structure of a microwave equipment for processing grain powder according to this utility model.

[0021] Figure 2 is a half-section front view of a microwave device for processing grain powder according to the present invention.

[0022] Figure 3 is a partial cross-sectional structural diagram of the tube frame proposed in this utility model;

[0023] Figure 4 is a partial cross-sectional front view of the tube frame structure proposed in this utility model;

[0024] Figure 5 is a schematic diagram of the friction sleeve structure proposed in this utility model;

[0025] In the diagram: 1. Box body; 2. Feed roller; 3. Discharge roller; 4. Conveyor belt; 5. Drive unit; 6. Microwave generator; 7. Upper rotating drum; 8. Lower rotating drum; 81. Roller shaft; 82. Drum body; 83. Limiting plate; 84. Partition plate; 85. Ball; 86. Roller sleeve; 87. Flexible contact strip. Detailed Implementation

[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0027] Please refer to Figures 1 and 2. This utility model provides a technical solution: a microwave device for processing grain powder, including a housing 1, an upper rotating drum 7 and a lower rotating drum 8 disposed inside the housing 1, and a feeding roller 2 and a discharging roller 3 disposed at both ends of the housing 1. The feeding roller 2, the discharging roller 3, the upper rotating drum 7 and the lower rotating drum 8 are connected by a conveyor belt 4. A drive device 5 is provided outside the housing 1 to drive the conveyor belt 4 to rotate. The drive device 5 is composed of a motor and a gearbox. The output shaft of the gearbox is fixedly connected to the discharging roller 3. The conveyor belt 4 is driven to rotate by driving the discharging roller 3 to rotate.

[0028] Please refer to Figures 2, 3 and 4. The technical point of this utility model is the lower rotating cylinder 8, which includes a cylinder frame, a cylinder frame including a roller shaft 81, the two ends of the roller shaft 81 being rotatably connected to the housing 1, a limiting disk 83 being fixed on the outer side of the two ends of the roller shaft 81, and a cylinder body 82 concentrically arranged with the roller shaft 81 being fixed between the two limiting disks 83, and a number of partitions 84 equally distributed between the roller shaft 81 and the cylinder body 82 being fixed between the roller shaft 81 and the cylinder body 82, the partitions 84 being radially arranged relative to the roller shaft 81 and the cylinder body 82, and an annular cavity being provided between the roller shaft 81 and the cylinder body 82, the partitions 84 dividing the annular cavity into multiple independent fan-shaped cavities.

[0029] Please refer to Figures 2 and 5. A friction sleeve is fixedly fitted to the outside of the cylinder frame, which can scrape off residual powder on the surface of the conveyor belt 4 when rotating. The friction sleeve includes a roller sleeve 86, which is sleeved on the outside of the cylinder body 82. The surface of the roller sleeve 86 is provided with several evenly distributed flexible contact strips 87. The flexible contact strips 87 are arc-shaped and integrally formed with the roller sleeve 86. The rotating cylinder 8 is caused to rotate by the friction of the conveyor belt 4, which forces the flexible contact strips 87 to contact the surface of the conveyor belt 4 as the roller sleeve 86 rotates. Due to the flexible nature of the flexible contact strips 87 on the surface of the roller sleeve 86, the flexible contact strips 87 are squeezed and slide slightly relative to the contact surface of the conveyor belt 4. Thus, the friction of the flexible contact strips 87 can scrape off the residual powder on the surface of the conveyor belt 4.

[0030] Please refer to Figure 4. The cylinder frame is provided with several moving bodies that can continuously roll during rotation to promote the vibration of the cylinder frame. The moving bodies include rolling balls 85, which are evenly distributed in rows in multiple sector-shaped cavities. During the rotation of the cylinder frame, the rolling balls 85 in each sector-shaped cavity continuously roll under the action of gravity. The rolling balls 85 located at the lower position roll along the partition 84 to impact the cylinder body 82, and the rolling balls 85 located at the higher position roll along the partition 84 to impact the roller shaft 81, thereby promoting the vibration of the cylinder frame.

[0031] Furthermore, several microwave generators 6 are installed on the top of the box 1 along the conveying direction of the conveyor belt 4. When the powder is continuously fed into the box 1 through the conveyor belt 4, the microwave generators 6 work to microwave heat and dry the grain powder entering the box 1.

[0032] The working principle and usage process of this utility model are as follows: The mixed grain powder is placed at the left end of the conveyor belt 4 and enters the box 1 under the conveyor belt 4. The microwave generator 6 operates to microwave heat and dry the grain powder entering the box 1. When the powder reaches the upper rotating drum 7, it bends, causing the dried powder to fall onto the conveyor belt 4 on the right side of the lower rotating drum 8. The remaining powder adhering to the conveyor belt 4 passes through the lower rotating drum 8. Through the friction of the conveyor belt 4, the rotating drum 8 rotates, forcing the flexible contact strip 87 to contact the surface of the conveyor belt 4 under the rotation of the roller sleeve 86. Due to the flexibility of the flexible contact strip 87 on the surface of the roller sleeve 86, the flexible contact strip 87 is subjected to... The pressure causes slight sliding on the contact surface of the conveyor belt 4, and the friction of the flexible contact strip 87 scrapes off the residual powder on the surface of the conveyor belt 4. During the rotation of the cylinder frame, the rolling balls 85 in each sector cavity roll continuously under the action of gravity. The rolling balls 85 located at the lower position roll along the partition 84 to hit the cylinder body 82, and the rolling balls 85 located at the higher position roll along the partition 84 to hit the roller shaft 81, thereby promoting the vibration of the cylinder frame. Since the flexible contact strip 87 is arc-shaped and integrally formed with the roller sleeve 86, as the roller sleeve 86 rotates, it can shake off the powder scraped off by the roller sleeve 86 onto the conveyor belt 4 on the right side of the lower rotating cylinder 8, so as to facilitate subsequent microwave heating treatment and the discharge box 1.

[0033] 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 microwave device for processing grain powder, comprising a housing (1), an upper rotating drum (7) and a lower rotating drum (8) disposed within the housing (1), and a feeding roller (2) and a discharging roller (3) disposed at both ends of the housing (1), wherein the feeding roller (2), the discharging roller (3), the upper rotating drum (7), and the lower rotating drum (8) are connected by a conveyor belt (4), and a driving device (5) for driving the conveyor belt (4) is provided outside the housing (1), characterized in that, The lower rotating drum (8) includes a drum frame; a friction sleeve is fixedly sleeved on the outside of the drum frame, which can scrape off the residual powder on the surface of the conveyor belt (4) when rotating; and several moving bodies are provided inside the drum frame, which can continuously roll and promote the shaking of the drum frame when rotating.

2. The microwave equipment for processing grain powder according to claim 1, characterized in that, The cylinder frame includes a roller (81), the two ends of which are rotatably connected to the housing (1). Limiting discs (83) are fixed on the outer sides of the two ends of the roller (81), and a cylinder body (82) concentrically arranged with the roller (81) is fixed between the two limiting discs (83). Several partitions (84) distributed at equal angles are fixed between the roller (81) and the cylinder body (82).

3. The microwave equipment for processing whole grain powder according to claim 2, characterized in that, The partition (84) is arranged radially relative to the roller (81) and the cylinder (82).

4. The microwave equipment for processing whole grain powder according to claim 2, characterized in that, An annular cavity is provided between the roller (81) and the cylinder (82), and the partition (84) divides the annular cavity into multiple independent fan-shaped cavities.

5. The microwave equipment for processing whole grain powder according to claim 4, characterized in that, The movable body includes rolling balls (85), which are evenly distributed in rows within multiple fan-shaped cavities.

6. The microwave equipment for processing whole grain powder according to claim 1, characterized in that, The friction sleeve includes a roller sleeve (86), which is sleeved outside the cylinder body (82). The surface of the roller sleeve (86) is provided with a plurality of evenly distributed flexible contact strips (87).

7. The microwave equipment for processing whole grain powder according to claim 6, characterized in that, The flexible contact strip (87) is arc-shaped and integrally formed with the roller sleeve (86).

8. The microwave equipment for processing whole grain powder according to claim 1, characterized in that, Several microwave generators (6) are arranged on the top of the box (1) along the conveying direction of the conveyor belt (4).

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