Whole-grain oat grinding machine

Abstract

The utility model discloses a whole grain oat grinder which comprises a grinder body, a vibration screening mechanism and a cyclone separator, the grinder body is provided with an inlet and an outlet, and the other end of an air outlet of the cyclone separator is connected with an air blower through an air pipe; a feeding port is formed in the middle of the cyclone separator and connected with a discharging port of the vibration screening mechanism through a first pipeline. A vacuum pump is arranged on the first pipeline; the lower part of the cyclone separator is communicated with an inlet of the grinding machine; and the second dust removal device comprises a second dust removal fan and a first dust removal pipe, one end of the first dust removal pipe is connected with an air inlet of the second dust removal fan, and the other end of the first dust removal pipe is connected to the side face of a screening cavity of the vibration screening mechanism and located below a vibration screen of the vibration screening mechanism. Multiple impurity removal operations are performed through the vibrating screen, the first dust removal device, the second dust removal device and the cyclone separator, so that the impurity content of the oat nutrition powder is reduced.

Description

Technical Field

[0001] This utility model relates to the field of oat processing technology, and in particular to a whole grain oat mill. Background Technology

[0002] Oats are a nutrient-rich and multivitamin-rich grain with significant health benefits, often considered both food and medicine. Oat nutrients include protein, fat, starch, dietary fiber, antioxidants, vitamins, and minerals. Oats have the highest protein content of all grains, containing all eight essential amino acids. The monounsaturated fatty acids, soluble dietary fiber (β-glucan), and saponins in oats can lower blood cholesterol and triglyceride levels, thus reducing the risk of cardiovascular disease. The various polyphenols in oats also possess excellent antioxidant properties. Therefore, oats have been listed as a functional food by the US FDA, and the World Health Organization has officially recognized oats as a recommended health food.

[0003] Oats are a whole grain and retain a relatively high amount of bran. After being processed into primary oat flour, it is prone to clumping and contains light dust, which affects the quality of the oat flour. Therefore, before further grinding the primary oat flour, it is necessary to remove large-sized impurities (such as clumping powder, light dust, metals, etc.) from it.

[0004] Existing patents such as CN218475322U, CN222518726U, and CN221965568U disclose equipment for oat nutritional powder, but do not address issues such as multiple light powder removal and impurity removal.

[0005] The above background information is provided only to aid in understanding the concept and technical solution of this utility model. It does not necessarily belong to the prior art of this patent application. In the absence of clear evidence that the above information was disclosed on the filing date of this patent application, the above background information should not be used to evaluate the novelty and inventiveness of this application. Utility Model Content

[0006] The main purpose of this utility model is to propose a whole grain oat mill that integrates screening, impurity removal and grinding.

[0007] Therefore, this utility model proposes a whole grain oat mill.

[0008] Preferably, the present invention may also have the following technical features:

[0009] A whole grain oat mill includes a mill, a vibrating screening mechanism, and a cyclone separator. The mill has an inlet and an outlet. The upper part of the cyclone separator has an air outlet, and the other end of the air outlet is connected to the air inlet of a blower through an air pipe. The middle part of the cyclone separator has a feed inlet, and the feed inlet is connected to the discharge outlet of the vibrating screening mechanism through a first pipeline. A vacuum pump is installed on the first pipeline.

[0010] The lower part of the cyclone separator is connected to the inlet of the grinder;

[0011] It also includes a second dust removal device, which includes a second dust removal fan and a first dust removal pipe. One end of the first dust removal pipe is connected to the air inlet of the second dust removal fan, and the other end is connected to the side of the screening chamber of the vibrating screening mechanism and is located below the vibrating screen of the vibrating screening mechanism.

[0012] Furthermore, a second conical hopper, wider at the top and narrower at the bottom, is installed below the outlet of the grinding mill. The lower end of the second conical hopper is a discharge port, which is equipped with a valve.

[0013] Furthermore, it also includes an observation window, which is located on the side of the second cone and is sealed with transparent glass.

[0014] Furthermore, the second dust removal device also includes a second dust removal pipe, one end of which is connected to the first dust removal pipe, and the other end is connected to the upper part of the second cone.

[0015] Furthermore, the diameter of the second dust removal pipe is larger than that of the first dust removal pipe.

[0016] Furthermore, the first pipeline, the first dust removal pipe, and the second dust removal pipe are all plastic corrugated pipes.

[0017] Furthermore, the side of the screening chamber is connected to an upwardly inclined second connecting pipe, and the other end of the second connecting pipe is connected to the second dust removal pipe.

[0018] Furthermore, the side of the screening chamber is connected to an upwardly inclined first connecting pipe, and the other end of the first connecting pipe is connected to the first dust removal pipe.

[0019] The beneficial effects of this invention compared to existing technologies include: multiple impurity removal processes—a vibrating screen, a first dust removal device, a second dust removal device, and a cyclone separator—reduce the impurity content of the oat powder, improving its texture and enhancing its overall quality. It also reduces floating powder (wheat fuzz), improves the sensory qualities of the product after mixing and gelatinization, resulting in a smoother texture, reduced roughness, and increased overall smoothness, thus enhancing the overall quality of the oat powder. Attached Figure Description

[0020] Figure 1This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a structural diagram of the second dust removal device of this utility model.

[0022] Figure 3 This is a schematic diagram of the main structure of the screening cavity of this utility model.

[0023] Figure 4 This is a top view schematic diagram of the screening cavity structure of this utility model.

[0024] Figure 5 This is a schematic diagram of the second cone-shaped hopper structure of this utility model. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to specific embodiments and the accompanying drawings. It should be emphasized that the following description is merely exemplary and is not intended to limit the scope and application of the present invention.

[0026] Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein the same reference numerals denote the same parts unless otherwise specifically stated.

[0027] like Figures 1-5 The whole grain oat mill shown includes a mill 2, a vibrating screening mechanism 1, and a cyclone separator 3. The mill 2 has an inlet and an outlet. The upper part of the cyclone separator 3 has an air outlet, providing airflow to form a cyclone. The other end of the air outlet is connected to the air inlet of a blower via an air pipe 5. The blower acts as an air source, drawing air out of the cyclone separator 3 and accelerating airflow, causing some light floating powder to be sucked away with the air. The middle part of the cyclone separator 3 has a feed inlet, which is connected to the discharge outlet 15 of the vibrating screening mechanism 1 via a first pipe 4. A vacuum pump is installed on the first pipe 4, which draws oat powder from the discharge outlet 15 of the vibrating screening mechanism. In this embodiment, large particles of impurities in the oat nutrient powder are separated by a vibration screening mechanism 1. Then, a vacuum pump is used to transport the screened oat nutrient powder to a cyclone separator 3, so that the air is separated before the oat nutrient powder enters the grinder 2, avoiding a large amount of air carrying powder into the grinder 2, which would increase the amount of floating dust when the grinder discharges the oat nutrient powder.

[0028] In a preferred embodiment, the grinder 2 is a universal grinder used to further grind and refine the oat powder. The grinder 2 employs existing equipment, such as a grinder with a toothed grinding disc, for example, the grinder disclosed in existing patent CN216459370U. The inlet 23 of the grinder 2 has a conical feeding hopper structure, with its opening facing upwards and connected to the lower part of the cyclone separator 3. The oat powder is separated by the cyclone separator 3 and falls into the grinder inlet 23. More specifically, the vibrating screening mechanism 1 is existing equipment, such as a dust removal, feeding, and screening device disclosed in existing patent CN217250546U.

[0029] Oats are a whole grain, retaining a relatively high amount of bran. After processing into primary oat flour, it is prone to clumping and contains light dust (such as oat fuzz), which affects the quality of the oat flour. Therefore, before grinding the primary oat flour, it is necessary to remove large-sized impurities (such as clumping powder, light dust, and metals). In processing the primary oat flour, large-sized impurities are first screened out using a vibrating screen 1. During the vibrating screening process, some light dust is sucked away and removed by the dust removal fan 11 of the vibrating screen 1, but some light dust still enters the area below the vibrating screen.

[0030] This invention further improves upon existing patent CN217250546U to enhance the ability of the screening chamber 12 in CN217250546U to remove light floating powder. Combined with... Figures 2-4 Specifically, a second dust removal device is installed below the screening chamber 12 and below the vibrating screen 13. For example, the second dust removal device includes a second dust removal fan 63 and a first dust removal pipe 61. One end of the first dust removal pipe 61 is connected to the air inlet of the second dust removal fan 63, and the other end is connected to the side of the screening chamber 12, communicating with the interior of the screening chamber 12, and located below the vibrating screen 13. The vibrating screen 13 is installed in the middle of the screening chamber 12, and a conical hopper 16, wider at the top and narrower at the bottom, is connected to the bottom of the screening chamber 12. The bottom opening of the conical hopper 16 serves as the discharge port 15, and the opening of the conical hopper 16 is connected to the first pipe 4. The inverted conical arrangement of the hopper facilitates the collection of the screened oat nutrient powder at the bottom opening. Simultaneously, the large upper area of ​​the hopper makes it easier for the second dust removal device to remove the light floating powder above the hopper. Preferably, the end of the first dust removal pipe 61 extends into 2-4 branch pipes 612 via a multi-port connector, and the other end of each branch pipe 612 is connected to the side of the screening chamber 12, forming a multi-point dust collection. The multiple branch pipes 612 increase the radiation range for collecting light floating powder, further improving the efficiency of removing light floating powder.

[0031] The screening chamber 12 is a cylindrical body. The vibrating screen 13 divides the screening chamber 12 into upper and lower layers. The oat powder is first screened in the upper layer of the screening chamber 12, and the screened oat powder falls into the lower layer of the screening chamber 12. Before the oat powder falls to the bottom of the hopper, the light floating powder is attracted by the suction of the second dust removal device, so that some of the light floating powder is sucked away by the second dust removal device, thereby improving the purity of the oat powder.

[0032] Reference Figure 5 Below the outlet of the grinder 2, a second conical hopper 21, wider at the top and narrower at the bottom, is installed. The lower end of the second conical hopper 21 is a discharge port 26, through which oat nutrient powder falls to the bottom of the second conical hopper 21 after exiting the grinder 2. A valve is provided at the discharge port 26 at the bottom of the second conical hopper 21; opening the valve allows for the recovery of the oat nutrient powder. Preferably, an observation window 22 is also included, located on the side of the second conical hopper 21 and sealed with transparent glass. During on-site installation, the observation window 22 faces a direction easily accessible to the worker, allowing the worker to observe the flow rate of the oat nutrient powder. More preferably, a second dust removal pipe 62 is also included. One end of the second dust removal pipe 62 is connected to the first dust removal pipe 61, and the other end is connected to the upper part of the second conical hopper 21. For example, the second dust removal pipe 62 is connected to the middle of the first dust removal pipe 61, thus connecting the two pipes. This allows for further removal of light floating powder from the ground powder via the second dust removal pipe 62. Preferably, the diameter of the second dust removal pipe 62 is larger than that of the first dust removal pipe 61. More specifically, the first pipe 4, the air pipe 5, the first dust removal pipe 61, and the second dust removal pipe 62 are all made of plastic corrugated pipes to improve the assemblability and compatibility of the entire device.

[0033] Preferably, a first connecting pipe 14 (stainless steel pipe) with a length of 150-250 mm and inclined upwards is connected to the side of the screening chamber 12, and the other end of the first connecting pipe 14 is connected to the first dust removal pipe 61 or a branch pipe 612 connected to the first dust removal pipe. Furthermore, a second connecting pipe 24 (stainless steel pipe) with a length of 150-250 mm and inclined upwards is connected to the side of the screening chamber 12, and the other end of the second connecting pipe 24 is connected to the second dust removal pipe 62. Preferably, a damper 25 is also provided inside the second connecting pipe 24 for adjusting the airflow of the second connecting pipe 24.

[0034] During operation, different screen sizes are generally selected for the vibrating screen 13, such as 4 mesh, 6 mesh, 8 mesh, 10 mesh, 20 mesh, 10mm round hole, 12mm round hole, and 14mm round hole. The sieved oat nutrient powder is then put into the grinder 2 and ground to a fineness of about 40 mesh.

[0035] Multiple impurity removal processes, including vibrating screen 13, first dust removal device, second dust removal device, and cyclone separator 3, are used to reduce the impurity content of oat nutrient powder and improve the quality of the finished oat nutrient powder product.

[0036] In the above scheme, when the vibrating screen 13 is performing screening, the first dust removal device and the second dust removal device are turned on simultaneously to perform continuous dust removal operations; the vacuum pump adjusts its working state according to the grinding efficiency of the grinder 2. For example, the vacuum pump stops for 10 seconds after each 5-second suction, performing intermittent suction.

[0037] Those skilled in the art will recognize that numerous variations are possible with respect to the above description, and the embodiments and figures are merely for describing one or more particular implementations.

[0038] Although exemplary embodiments of the present invention have been described and illustrated, those skilled in the art will understand that various changes and substitutions can be made thereto without departing from the spirit of the present invention. Furthermore, many modifications can be made to adapt specific situations to the doctrine of the present invention without departing from the central concept of the present invention described herein. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but may include all embodiments and equivalents that fall within the scope of the present invention.

Claims

1. A whole grain oat grinder, characterized in that: The device includes a grinder, a vibrating screening mechanism, and a cyclone separator. The grinder has an inlet and an outlet. The cyclone separator has an air outlet at its upper part, and the other end of the air outlet is connected to the air inlet of a blower through an air pipe. The cyclone separator has a feed inlet in its middle part, and the feed inlet is connected to the discharge outlet of the vibrating screening mechanism through a first pipeline. A vacuum pump is installed on the first pipeline. The lower part of the cyclone separator is connected to the inlet of the grinder; It also includes a second dust removal device, which includes a second dust removal fan and a first dust removal pipe. One end of the first dust removal pipe is connected to the air inlet of the second dust removal fan, and the other end is connected to the side of the screening chamber of the vibrating screening mechanism and is located below the vibrating screen of the vibrating screening mechanism.

2. The whole grain oat mill as described in claim 1, characterized in that: The grinding mill has a second conical hopper installed below its outlet, which is wider at the top and narrower at the bottom. The lower end of the second conical hopper is the discharge port, which is equipped with a valve.

3. The whole grain oat mill as described in claim 2, characterized in that: It also includes an observation window, which is located on the side of the second cone and is sealed with transparent glass.

4. The whole grain oat mill as described in claim 2, characterized in that: The second dust removal device also includes a second dust removal pipe, one end of which is connected to the first dust removal pipe and the other end is connected to the upper part of the second cone.

5. The whole grain oat mill as described in claim 4, characterized in that: The diameter of the second dust removal pipe is larger than that of the first dust removal pipe.

6. The whole grain oat mill as described in claim 4, characterized in that: The first pipeline, the first dust removal pipe, and the second dust removal pipe are all plastic corrugated pipes.

7. The whole grain oat mill as described in claim 4, characterized in that: The side of the screening chamber is connected to a second pipe that is inclined upwards, and the other end of the second pipe is connected to the second dust removal pipe.

8. The whole grain oat mill as described in claim 2, characterized in that: The side of the screening chamber is connected to an upwardly inclined first connecting pipe, and the other end of the first connecting pipe is connected to the first dust removal pipe.

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