Insect protein grinding device

Abstract

The utility model relates to the technical field of protein production, in particular to an insect protein grinding device which comprises a grinding tank and a grinding roller, a grinding groove is formed in the grinding tank, and the outer side face of the grinding groove is connected with the inner side wall of the grinding tank; a gap between the upper end of the grinding roller and the inner side surface of the grinding groove is gradually reduced from top to bottom, and the lower end of the grinding roller is inserted into the bottom wall of the grinding groove to form clearance fit; and filtering holes are formed in the bottom wall of the grinding groove corresponding to the lower end surfaces of the grinding rollers. The utility model can solve the problem that the fine grinding efficiency of the existing protein production device is not high enough.

Description

Technical Field

[0001] This utility model relates to the field of protein production technology, specifically to an insect protein grinding device. Background Technology

[0002] Insect bioactive proteins refer to proteins extracted from insects that retain their natural activity and biological functions. These proteins have broad application prospects in food, feed, biomedicine, and other industrial fields. The production process of insect proteins is a systematic process involving multiple steps from insect breeding to final product preparation, including cleaning, sterilization, drying, grinding, and other processes, among which grinding is a very important step.

[0003] Patent application number CN202021230167.4 discloses an efficient insect protein production device. By setting the gap between the fixed grinding bucket and the movable grinding roller to gradually decrease, the insect protein can be coarsely ground first and then finely ground. The combination of the two can effectively optimize the entire grinding process and improve product quality. However, because the contact surface between the fixed grinding bucket and the movable grinding roller and the insect protein is small at the minimum gap, fine grinding requires a lot of time to reach the required particle size, and the grinding efficiency is not high. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide an insect protein grinding device to solve the problem that the fine grinding efficiency of existing protein production devices is not high enough.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An insect protein grinding device includes a grinding jar and a grinding roller; the grinding jar has a grinding groove inside, and the outer side of the grinding groove is connected to the inner sidewall of the grinding jar; the grinding roller is rotatably disposed in the grinding groove, the gap between the upper end of the grinding roller and the inner sidewall of the grinding groove gradually decreases from top to bottom, and the lower end of the grinding roller is inserted into the bottom wall of the grinding groove to form a clearance fit; a filter hole is provided through the bottom wall of the grinding groove corresponding to the lower end face of the grinding roller.

[0007] As an optional solution, a drive motor is installed on the outer top wall of the grinding tank, and the output shaft of the drive motor passes through the top wall of the grinding tank and is coaxially connected to the grinding roller.

[0008] As an optional solution, the grinding jar has a discharge port at the top and a funnel-shaped opening at the bottom.

[0009] As an optional scheme, the upper end of the grinding roller is large and the lower end is small, the upper end of the grinding roller is composed of two oppositely connected truncated cones, the inner side of the grinding groove is a slope, and the gap between the inner side of the grinding groove and the outer side of the lower truncated cone of the grinding roller gradually narrows from top to bottom.

[0010] As an optional scheme, a filter screen and a material lifting machine are further included, the filter screen is obliquely arranged in the grinding tank below the grinding groove, and the material lifting machine is arranged outside the grinding tank, the lower end of the material lifting machine is connected with the filter screen through a slide, and the upper end of the material lifting machine is connected with the top of the grinding tank through a pipeline.

[0011] As an optional scheme, the pipeline is provided with a freeze dryer.

[0012] As an optional scheme, a vibration motor is arranged on the outer bottom surface of the grinding groove, and the output end of the vibration motor is connected with the upper end of the filter screen.

[0013] As an optional scheme, the outer periphery of the filter screen is wrapped with a partition strip, and a gap is formed in the lower end of the partition strip.

[0014] Thanks to the above technical scheme, the device has the following advantages:

[0015] The device for grinding insect protein is provided with the following advantages: the upper end of the grinding roller and the inner side of the grinding groove are gradually reduced from top to bottom, so that the insect protein can be coarsely ground into insect protein particles when the grinding roller rotates; the lower end of the grinding roller is inserted into the bottom wall of the grinding groove to form a gap, so that the insect protein particles can be finely ground into insect protein powder when the grinding roller rotates; the filter hole corresponding to the end surface of the lower end of the grinding roller is arranged on the grinding groove, so that the insect protein particles that are not ground into powder can not fall off due to the limitation of the filter hole, and thus can pass through the filter hole only after being ground into powder under the friction between the end surface of the lower end of the grinding roller and the bottom wall of the grinding groove. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0017] Figure 1 The structural diagram of the insect protein grinding device is described in the embodiments of the present application.

[0018] Figure 2 The cross-sectional view of the grinding tank is described in the embodiments. Figure 1

[0019] Figure 3 The perspective view of the grinding tank is described in the embodiments. Figure 1

[0020] Figure 4 The side view of the grinding tank is described in the embodiments. Figure 1

[0021] Figure 5 The perspective view of the filter screen is described in the embodiments. Figure 1

[0022] Reference signs: 1, grinding tank; 11, discharging port; 2, grinding roller; 3, grinding groove; 31, filter hole; 4, driving motor; 5, filter screen; 51, vibration motor; 52, partition strip; 521, notch; 6, material lifting machine; 61, slide; 62, pipeline; 7, freeze dryer. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] ​​​​In the description of the utility model, it needs to explain, the term "center", "upper", "lower", "left" "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the device or element must have a specific orientation, a specific orientation and operation, therefore cannot be understood as limiting the utility model. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the utility model, it needs to explain, unless otherwise expressly provided and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] Please refer to Figures 1-5 In an embodiment of the insect protein grinding device of the utility model, the insect protein grinding device comprises a grinding tank 1 and a grinding roller 2.

[0027] Among them, the top of the grinding tank 1 is provided with a communication hole 11 in the inside of the grinding tank 1, and the insect protein fragments can be put into the grinding tank 1 through the hole 11; the bottom of the grinding tank 1 is funnel-shaped opening, to discharge the insect protein powder meeting the particle size requirement after grinding; the grinding tank 1 is provided with a grinding groove 3, the outer side of the grinding groove 3 is connected with the inner side wall of the grinding tank 1; the grinding roller 2 is horizontally rotatably arranged in the grinding groove 3; specifically, the driving motor 4 is fixedly installed at the middle position of the outer top wall of the grinding tank 1, the output shaft of the driving motor 4 vertically penetrates the top wall of the grinding tank 1 and is coaxially connected with the grinding roller 2 to drive the grinding roller 2 to rotate.

[0028] Among them, the gap between the upper end of the grinding roller 2 and the inner side of the grinding groove 3 gradually decreases from top to bottom, specifically, the upper end of the grinding roller 2 is larger and the lower end is smaller, the upper end of the grinding roller 2 is composed of two oppositely connected truncated cones, the inner side of the grinding groove 3 is inclined, and the gap between the inclined surface of the inner side of the grinding groove 3 and the outer side of the lower truncated cone of the grinding roller 2 gradually narrows from top to bottom, so that the insect protein fragments in the gap can be coarsely ground when the grinding roller 2 rotates, and the large insect protein fragments are broken into smaller particles.

[0029] The lower end of the grinding roller 2 is inserted into the bottom wall of the grinding groove 3, and the lower end face and side face of the grinding roller 2 are in gap cooperation with the bottom wall of the grinding groove 3, and the gap width is the same as the minimum width of the gap for coarse grinding, so that the insect protein fragments in the gap can be finely ground when the grinding roller 2 rotates, and the insect protein particles are further ground into powder; the bottom wall of the grinding groove 3 is provided with uniformly distributed circular filter holes 31 corresponding to the lower end face of the grinding roller 2, and the insect protein particles on the bottom wall of the grinding groove 3 cannot fall due to the limitation of the filter holes 31, so that after being ground into powder under the friction between the lower end face of the grinding roller 2 and the bottom wall of the grinding groove 3, the insect protein particles can smoothly pass through the filter holes 31.

[0030] On this basis, the insect protein grinding device of the embodiment further comprises a filter screen 5 and a material lifting machine 6, the filter screen 5 is obliquely arranged below the grinding groove 3 in the grinding tank 1, and the outer periphery of the filter screen 5 is attached to the inner side wall of the grinding tank 1; the material lifting machine 6 is installed outside the grinding tank 1, and the lower end of the material lifting machine 6 is connected to the filter screen 5 through an inclined slide 61, and the slide 61 is consistent with the inclination angle of the filter screen 5; the upper end of the material lifting machine 6 is connected to the top of the grinding tank 1 through a pipeline 62; when in use, the insect protein powder falling from the filter holes 31 falls on the filter screen 5, and the insect protein powder meeting the required particle size can pass through the filter screen 5 and continue to fall, and the insect protein powder not meeting the requirements slides along the filter screen 5 and the slide 61 into the material lifting machine 6, and the material lifting machine 6 re-enters the grinding tank 1 through the pipeline 62 to continue grinding.

[0031] It should be noted that the material lifting machine 6 is a kind of mechanical equipment for transporting materials in a vertical or nearly vertical direction, and can specifically adopt a screw lifting machine, also known as a screw feeding machine. It is a kind of mechanical equipment for vertically or obliquely lifting materials in a fixed screw pipe or groove by using rotating screw blades. It is widely used in industrial production, especially in situations requiring continuous conveying of powdery, granular and small blocky materials.

[0032] Further, a freeze-drying machine 7 can be installed on the pipeline 62. The freeze-drying machine 7, also known as a freeze dryer, is a kind of existing equipment for removing water from materials through freezing and vacuum drying technology. The freeze-drying machine 7 is very suitable for the production of insect protein, because the freeze-drying technology is carried out in a low-temperature and high-vacuum environment, which can maximize the preservation of the activity and nutritional value of the materials, and is particularly suitable for materials with high heat sensitivity, such as insect protein. Because the water content in the insect body can affect the grinding efficiency and the quality of the finished product, too high or too low water content can cause problems, and because the mechanical friction in the grinding process can cause the temperature to rise, which can cause protein denaturation (loss of activity) and loss of volatile components, therefore, before the insect protein powder output by the material lifting machine 6 enters the grinding tank 1, it is dried at low temperature by the freeze-drying machine 7, which can effectively improve the quality of the grinding finished product.

[0033] Further, in order to improve the screening effect of the insect protein powder, a vibration motor 51 can be installed on the outer bottom surface of the grinding tank 3, the outer periphery of the filter screen 5 is inserted into the inner side wall of the grinding tank 1 and forms a clearance fit, and the output end of the vibration motor 51 is connected to the upper end of the filter screen 5 to drive the filter screen 5 to vibrate. The vibration makes the insect protein powder jump and roll on the filter screen 5, which not only better realizes the classification and screening of the insect protein powder, but also makes the insect protein powder fall more quickly from the filter screen 5 and the chute 61 into the material elevator 6.

[0034] Further, a partition 52 can be fixedly wrapped around the outer periphery of the filter screen 5, the output end of the vibration motor 51 is fixedly connected to the partition 52, a notch 521 is formed in the lower end of the partition 52, and the notch 521 is slidingly fixedly connected. When in use, the insect protein powder on the filter screen 5 can enter the chute 61 from the notch 521, and the partition 52 can improve the firmness of the filter screen 5 while guiding the insect protein powder to slide into the chute 61.

[0035] The use method or working principle of the utility model is as follows:

[0036] After the insect protein crushed material to be ground is poured into the grinding tank 1 from the discharge port 11, the driving motor 4 is turned on to drive the driving grinding roller 2 to rotate. When the insect protein crushed material enters the gap between the inclined surface on the inner side of the grinding groove 3 and the outer side surface of the upper end of the grinding roller 2, the rotation of the grinding roller 2 can coarsely grind the insect protein crushed material in the gap, and the large insect protein crushed material is broken into smaller particles. When the insect protein particles enter the gap between the lower end surface of the grinding roller 2, the side surface and the bottom wall of the grinding groove 3, the rotation of the grinding roller 2 can finely grind the insect protein crushed material in the gap, and further grind the insect protein particles into powder. The insect protein particles that have not been ground into powder cannot fall due to the limitation of the filter hole 31 on the bottom wall of the grinding groove 3, and can only pass through the filter hole 31 after being ground into powder under the friction between the lower end surface of the grinding roller 2 and the bottom wall of the grinding groove 3.

[0037] The insect protein powder falling from the filter hole 31 falls on the filter screen 5, the insect protein powder meeting the required particle size can continue to fall through the filter screen 5, and the insect protein powder not meeting the requirements can slide into the material elevator 6 along the filter screen 5 and the chute 61, be conveyed to the freeze dryer 7 by the material elevator 6, and be re-input into the grinding tank 1 through the pipeline 62 for further grinding after low-temperature drying treatment by the freeze dryer 7.

[0038] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent application scope. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. An insect protein grinding device, characterized in that, It includes a grinding jar (1) and a grinding roller (2); the grinding jar (1) is provided with a grinding groove (3), and the outer side of the grinding groove (3) is connected to the inner side wall of the grinding jar (1); the grinding roller (2) is rotatably disposed in the grinding groove (3), the gap between the upper end of the grinding roller (2) and the inner side of the grinding groove (3) gradually decreases from top to bottom, and the lower end of the grinding roller (2) is inserted into the bottom wall of the grinding groove (3) and forms a clearance fit; a filter hole (31) is provided through the bottom wall of the grinding groove (3) corresponding to the lower end face of the grinding roller (2).

2. The insect protein grinding device according to claim 1, characterized in that, A drive motor (4) is installed on the top wall of the grinding tank (1). The output shaft of the drive motor (4) passes through the top wall of the grinding tank (1) and is coaxially connected to the grinding roller (2).

3. The insect protein grinding device according to claim 1, characterized in that, The grinding jar (1) has a discharge port (11) at the top and a funnel-shaped opening at the bottom.

4. The insect protein grinding device according to claim 1, characterized in that, The grinding roller (2) is larger at the top and smaller at the bottom. The upper end of the grinding roller (2) is composed of two truncated cones connected in opposite directions. The inner side of the grinding groove (3) is an inclined surface. The gap between the inclined surface of the inner side of the grinding groove (3) and the outer side of the lower truncated cone of the grinding roller (2) gradually narrows from top to bottom.

5. The insect protein grinding device according to claim 1, characterized in that, It also includes a filter screen (5) and a material elevator (6). The filter screen (5) is inclinedly arranged inside the grinding tank (1) below the grinding groove (3). The material elevator (6) is arranged outside the grinding tank (1). The lower end of the material elevator (6) is connected to the filter screen (5) through a slide (61), and the upper end of the material elevator (6) is connected to the top of the grinding tank (1) through a pipe (62).

6. The insect protein grinding apparatus according to claim 5, characterized in that, A freeze dryer (7) is installed on the pipe (62).

7. The insect protein grinding apparatus according to claim 5 or 6, characterized in that, A vibration motor (51) is installed on the bottom surface of the grinding tank (3), and the output end of the vibration motor (51) is connected to the upper end of the filter screen (5).

8. The insect protein grinding apparatus according to claim 7, characterized in that, The filter screen (5) is wrapped with a partition strip (52) along its outer periphery, and the lower end of the partition strip (52) has a notch (521).

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