Microwave drying and sterilizing device for preparing insect protein powder
The microwave combined with hot air drying and sterilization device solves the problems of uneven drying and ingredient loss of insect protein powder, achieves efficient and uniform drying and sterilization effects, and reduces electricity costs.
Patent Information
- Application Number
- CN202422859296.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-11-22
AI Technical Summary
Existing insect protein powder drying equipment has problems such as uneven drying, low efficiency, and loss of active ingredients due to high-temperature treatment.
By adopting the method of microwave combined with hot air, a microwave emitter and a hot air circulation dehumidification device are set in the drying device, combined with temperature control and material feeding components, the insect protein powder can be gradually dried and sterilized by heating, and the penetration of microwaves and the dynamic airflow of hot air are used to promote uniform drying.
Uniform drying and sterilization of insect protein powder is achieved, drying efficiency is improved, loss of effective ingredients is avoided, and electricity costs are reduced.
Smart Images
Figure CN223412433U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of insect protein powder production equipment, in particular to a microwave drying and sterilizing device for preparing insect protein powder. Background Art
[0002] Because insects and worms are typically rich in protein and fat, they have a relatively high nutritional value, making them particularly suitable for human nutrition and livestock production. Industrial-scale breeding and processing of insects and worms allows for standardized production of nutrients, which can then be used in food or feed production, resulting in both economic and ecological benefits.
[0003] At present, in the process of producing insect protein powder, it is generally necessary to perform a drying process to remove moisture from the insect protein powder to prevent it from breeding bacteria and causing mildew. Existing equipment for drying insect protein powder generally uses hot air for drying. Since the insect protein powder accumulates on the conveyor belt and is heated as the conveyor belt moves forward, the moisture contained in it evaporates. However, this method has the following shortcomings:
[0004] (1) The powder accumulates on the conveyor belt, and the powder on the surface and the bottom are heated to different degrees, which easily leads to uneven drying and incomplete drying, which in turn causes the insect protein powder to solidify easily;
[0005] (2) The drying efficiency is low when hot air is used alone. Therefore, the drying efficiency is generally improved by increasing the drying temperature. However, when the powder is transported along the conveyor belt, it is easy for the effective components of the insect protein powder to be destroyed due to long-term exposure to high temperature.
[0006] Therefore, it is necessary to improve the existing drying equipment. Utility Model Content
[0007] The purpose of the utility model is to provide a microwave drying and sterilization device for preparing insect protein powder, which adopts microwave combined with hot air to achieve drying and sterilization, and well solves the problems mentioned in the above background technology.
[0008] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0009] A microwave drying and sterilization device for preparing insect protein powder comprises a control device and a body having a furnace cavity, wherein two ends of the body respectively have a feed port and a discharge port connected to the furnace cavity, a horizontally distributed conveyor belt for conveying insect protein powder is provided inside the furnace cavity, and two ends of the conveyor belt respectively extend out of the feed port and the discharge port, the furnace cavity comprises a first chamber distributed near the feed port and a second chamber distributed near the discharge port, a partition plate is provided between the first chamber and the second chamber, microwave launchers distributed toward the conveyor belt are provided inside the first chamber and the second chamber, the operating power of the microwave launcher located in the second chamber is greater than the operating power of the microwave launcher located in the first chamber, a hot air circulation and dehumidification device connected between the first chamber and the second chamber is provided above the body, and the conveyor belt, the microwave launcher, and the hot air circulation and dehumidification device are respectively connected to the control device.
[0010] Furthermore, the inner wall of the first chamber, the inner wall of the second chamber, and the side wall of the partition plate are all provided with a reflection plate.
[0011] Furthermore, the first chamber and the second chamber are both provided with a plurality of material-diverting assemblies, and the material-diverting assemblies include rotating rollers horizontally distributed above the conveyor belt and a driving device for driving the rotating rollers to rotate, and the surface of the rotating rollers is provided with bristles that abut against the conveyor belt.
[0012] Furthermore, the driving device is a servo motor with a reduction gear set, and the servo motor is electrically connected to the control device.
[0013] Furthermore, an ultraviolet germicidal lamp is provided inside the second chamber, and the ultraviolet germicidal lamp is electrically connected to the control device.
[0014] Furthermore, the hot air circulation and dehumidification device includes an air outlet hood, an exhaust fan, an air outlet pipe, a dryer, a return air pipe and a return air hood. The two ends of the dryer are respectively connected to the air outlet pipe and the return air pipe. The end of the air outlet pipe away from the dryer is connected to the air outlet hood through the exhaust fan. The air outlet hood is arranged at the top of the second chamber. The end of the return air duct away from the dryer is connected to the return air hood. The return air hood is arranged at the top of the first chamber.
[0015] Furthermore, a horizontally distributed air balancing plate is provided at the lower portion of the return air hood, and the air balancing plate is provided with evenly distributed air balancing holes.
[0016] Furthermore, a horizontally distributed filter screen is provided at the lower portion of the air outlet cover.
[0017] Furthermore, the dryer includes a hollow box body and an adsorbent filled in the box body for adsorbing moisture.
[0018] Furthermore, temperature sensors electrically connected to the control device are respectively provided inside the first chamber and inside the second chamber.
[0019] Compared with the prior art, the present invention provides a microwave drying and sterilization device for preparing insect protein powder, which has the following beneficial effects:
[0020] The utility model is provided with a microwave generator, which can generate microwaves and uniformly radiate them to the insect protein powder. Due to the penetrability of microwaves, the inside and outside of the powder are heated simultaneously, thereby achieving rapid drying and sterilization. At the same time, by controlling the operating power of the microwave generators in the first chamber and the second chamber, when the insect protein powder is transported into the furnace cavity along the conveyor belt, it first enters the first chamber with a lower temperature for preliminary heating and drying treatment, and then enters the second chamber with a higher temperature for further heating, drying and sterilization treatment, so that the insect protein powder is gradually heated during the drying and sterilization process, which is conducive to the full volatilization of moisture, more thorough drying, and avoids the insect protein powder being heated for a long time and destroying the effective ingredients; in addition, with the hot air circulation and dehumidification device, not only can moisture be removed in time to prevent the insect protein powder from solidifying, but the higher temperature air in the second chamber can also be transported to the first chamber with a lower temperature. Through the dynamic airflow, the powder is promoted to be uniformly heated and the moisture is volatilized, thereby improving the uniformity of microwave energy and the drying efficiency, and can reduce the operating power of the microwave generator in the first chamber, thereby reducing electricity costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.
[0022] Figure 1 It is a structural diagram of the utility model;
[0023] Figure 2 A schematic diagram of flipping insect protein powder;
[0024] Figure 3 This is a control principle block diagram of the utility model.
[0025] Figure numerals: 1. Control device; 2. Machine body; 21. Feed port; 22. Discharge port; 23. First chamber; 24. Second chamber; 25. Partition plate; 3. Conveyor belt; 4. Microwave transmitter; 5. Hot air circulation and dehumidification device; 51. Air outlet hood; 52. Exhaust fan; 53. Air outlet duct; 54. Dryer; 55. Return air duct; 56. Return air hood; 57. Air equalization plate; 58. Filter; 6. Reflection plate; 7. Material selection assembly; 71. Rotating roller; 72. Brush; 8. Ultraviolet germicidal lamp; 9. Temperature sensor. DETAILED DESCRIPTION
[0026] The following will clearly and completely describe the technical solutions of the present invention through detailed embodiments and in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] Please refer to Figures 1 to 3The present embodiment provides a microwave drying and sterilizing device for preparing insect protein powder, comprising a control device 1 and a body 2 having a furnace cavity, wherein the two ends of the body 2 are respectively provided with a feed port 21 and a discharge port 22 connected to the furnace cavity, and a horizontally distributed conveyor belt 3 for conveying insect protein powder is provided inside the furnace cavity, and the two ends of the conveyor belt 3 extend out of the feed port 21 and the discharge port 22 respectively, and the furnace cavity comprises a first chamber 23 distributed near the feed port 21 and a second chamber 24 distributed near the discharge port 22, and the first chamber 23 is connected to the first chamber 23. A partition plate 25 is provided between the second chambers 24. Microwave emitters 4 distributed toward the conveyor belt 3 are provided inside the first chamber 23 and the second chamber 24. The operating power of the microwave emitter located in the second chamber 24 is greater than the operating power of the microwave emitter located in the first chamber 23. A hot air circulation and dehumidification device 5 connected between the first chamber 23 and the second chamber 24 is provided above the body 2. The conveyor belt 3, the microwave emitter 4, and the hot air circulation and dehumidification device 5 are respectively connected to the control device 1. By providing a microwave generator, microwaves can be generated and uniformly radiated onto the insect protein powder. Due to the penetrability of microwaves, the powder is heated both inside and outside, achieving rapid drying and sterilization. At the same time, by controlling the operating power of the microwave generators in the first chamber and the second chamber, the insect protein powder, when transported into the furnace cavity along the conveyor belt, first enters the first chamber with a lower temperature for preliminary heating and drying treatment, and then enters the second chamber with a higher temperature for further heating, drying and sterilization treatment. As a result, the insect protein powder is gradually heated during the drying and sterilization process, which is conducive to the full volatilization of moisture, more thorough drying, and avoids the insect protein powder being heated for a long time and damaging the effective ingredients. In addition, in conjunction with the hot air circulation and dehumidification device, not only can moisture be removed in time to prevent the insect protein powder from solidifying, but the higher temperature air in the second chamber can also be transported to the lower temperature first chamber. Through dynamic airflow, the powder is promoted to be evenly heated and the moisture volatilized, thereby improving the uniformity of microwave energy and drying efficiency, and can reduce the operating power of the microwave generator in the first chamber, thereby reducing electricity costs.
[0028] In some specific embodiments, such as Figure 1 As shown, in order to better control the temperature in the first chamber and the second chamber, a temperature sensor 9 electrically connected to the control device 1 is provided inside the first chamber 23 and inside the second chamber 24 respectively.
[0029] As an improved implementation method, Figure 1 As shown, the inner wall of the first chamber 23, the inner wall of the second chamber 24, and the side wall of the partition plate 25 are all provided with a reflective plate 6, which can reflect microwave energy, thereby enhancing the penetration of microwaves into the insect protein powder and achieving rapid drying.
[0030] As an improved implementation method, Figure 1 and Figure 2 As shown, in order to prevent the insect protein powder from accumulating on the conveyor belt, the first chamber 23 and the second chamber 24 are both provided with a plurality of material-diverting components 7. Specifically, as Figure 2 As shown, the material shifting assembly 7 includes a rotating roller 71 horizontally arranged above the conveyor belt 3 and a drive device for driving the rotating roller 71 to rotate. The surface of the rotating roller 71 is provided with bristles 72 that abut the conveyor belt 3. As an example, the drive device is a servo motor with a built-in reduction gear set, and the servo motor is electrically connected to the control device. In this way, the servo motor can drive the rotating roller to rotate slowly, so that the bristles on the surface of the rotating roller gently stir and stir the powder, so that the powder at the bottom layer is transferred to the surface layer, thereby promoting uniform drying and sterilization.
[0031] As an improved implementation method, Figure 1 As shown, the second chamber 24 is equipped with an ultraviolet germicidal lamp 8, which is electrically connected to the control device 1. The addition of an ultraviolet germicidal lamp within the second chamber enhances the sterilization effect, enabling a more thorough elimination of bacteria. More specifically, an ultraviolet germicidal lamp is installed on each of the side walls of the second chamber near the discharge port and the side wall of the partition, facing the conveyor belt at an angle, resulting in a better sterilization effect.
[0032] In some specific embodiments, such as Figure 1 As shown, the hot air circulation and dehumidification device 5 includes an air outlet hood 51, an exhaust fan 52, an air outlet pipe 53, a dryer 54, a return air pipe 55, and a return air hood 56. The two ends of the dryer 54 are connected to the air outlet pipe 53 and the return air pipe 55 respectively. The end of the air outlet pipe 53 away from the dryer 54 is connected to the air outlet hood 51 through the exhaust fan 52. The air outlet hood 51 is arranged at the top of the second chamber 24. The end of the return air pipe 55 away from the dryer 54 is connected to the return air hood 56, which is arranged at the top of the first chamber 23. Under the suction action of the exhaust fan, the hot air containing moisture in the second chamber first passes through the dryer to remove moisture, and then is sent to the first chamber, which can increase the internal air temperature of the first chamber, facilitate rapid drying, and promote uniform drying.
[0033] As an improved implementation method, Figure 1 As shown, a horizontally distributed air balancing plate 57 is provided at the lower portion of the return air cover 56 , and the air balancing plate 57 is provided with evenly distributed air balancing holes, so that the warm air input into the first chamber can be more evenly distributed.
[0034] As an improved implementation method, Figure 1As shown, a horizontally distributed filter screen 58 is provided at the lower portion of the air outlet cover 51 to filter the raised powder.
[0035] In some specific embodiments, the dryer 54 includes a hollow box body and an adsorbent filled in the box body for absorbing moisture. As an example, the adsorbent can be anhydrous calcium chloride, quicklime or other desiccant.
[0036] The above embodiments are merely illustrative of the concepts and technical solutions of this utility model and are not intended to limit this utility model. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by persons skilled in the art without departing from the spirit and technical concepts disclosed in this utility model shall be covered by the claims of this utility model.
[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.
Claims
1. A microwave drying and sterilization device for preparing insect protein powder, comprising a control device and a body having a furnace cavity, wherein the two ends of the body respectively have a feed port and a discharge port connected to the furnace cavity, and a horizontally distributed conveyor belt for conveying insect protein powder is provided inside the furnace cavity, and the two ends of the conveyor belt extend out of the feed port and the discharge port, respectively, characterized in that: The furnace cavity includes a first chamber distributed near the feed port and a second chamber distributed near the discharge port. A partition plate is provided between the first chamber and the second chamber. Microwave launchers distributed toward the conveyor belt are provided inside the first chamber and the second chamber. The operating power of the microwave launcher located in the second chamber is greater than the operating power of the microwave launcher located in the first chamber. A hot air circulation and dehumidification device connected between the first chamber and the second chamber is provided above the machine body. The conveyor belt, the microwave launcher, and the hot air circulation and dehumidification device are respectively connected to the control device.
2. The microwave drying and sterilization device for preparing insect protein powder according to claim 1, characterized in that: The inner wall of the first chamber, the inner wall of the second chamber, and the side wall of the partition plate are all provided with reflection plates.
3. The microwave drying and sterilization device for preparing insect protein powder according to claim 1, characterized in that: The first chamber and the second chamber are both provided with a plurality of material-diverting assemblies, and the material-diverting assemblies include rotating rollers horizontally distributed above the conveyor belt and a driving device for driving the rotating rollers to rotate, and the surface of the rotating rollers is provided with bristles that abut against the conveyor belt.
4. The microwave drying and sterilization device for preparing insect protein powder according to claim 3, characterized in that: The driving device is a servo motor with a reduction gear set, and the servo motor is electrically connected to the control device.
5. The microwave drying and sterilization device for preparing insect protein powder according to claim 1, characterized in that: An ultraviolet germicidal lamp is provided inside the second chamber, and the ultraviolet germicidal lamp is electrically connected to the control device.
6. The microwave drying and sterilization device for preparing insect protein powder according to claim 1, characterized in that: The hot air circulation and dehumidification device includes an air outlet hood, an exhaust fan, an air outlet pipe, a dryer, a return air pipe and a return air hood. The two ends of the dryer are respectively connected to the air outlet pipe and the return air pipe. The end of the air outlet pipe away from the dryer is connected to the air outlet hood through the exhaust fan. The air outlet hood is arranged at the top of the second chamber. The end of the return air pipe away from the dryer is connected to the return air hood. The return air hood is arranged at the top of the first chamber.
7. The microwave drying and sterilization device for preparing insect protein powder according to claim 6, characterized in that: A horizontally distributed air balancing plate is provided at the lower portion of the return air cover, and the air balancing plate is provided with evenly distributed air balancing holes.
8. The microwave drying and sterilization device for preparing insect protein powder according to claim 6, characterized in that: A horizontally distributed filter screen is provided at the lower part of the air outlet cover.
9. The microwave drying and sterilizing device for preparing insect protein powder according to claim 6, characterized in that: The dryer includes a hollow box body and an adsorbent filled in the box body for adsorbing moisture.
10. The microwave drying and sterilization device for preparing insect protein powder according to claim 1, characterized in that: Temperature sensors electrically connected to the control device are respectively provided inside the first chamber and inside the second chamber.