Bran removal device

Abstract

The bran removing device comprises a bran removing body, a material uniformizing plate, an air inlet and an air outlet, the material uniformizing plate is arranged at the top of the bran removing body, the air inlet and the air outlet are located in the left side and the right side of the lower portion of the bran removing body respectively and connected with the bran removing body, the air inlet is designed to be externally hung with a shutter, and the air volume is adjustable; the air outlet is horn-shaped, and a slope is arranged at the lower end. According to the bran removing device disclosed by the utility model, by utilizing the gravitational acceleration of wheat, a material layer can be thinned by 1 / 3 of the original thickness within the height of 1.8 m, the particle spacing is increased, and the ventilation is improved, so that the impurity removing efficiency is improved; according to the compartment type bran removal device, the air speed is adjusted by adjusting the angle of a shutter, it is ensured that materials fall uniformly through the design of a material uniformizing plate at the top of the bran removal body, the wheat bran separation efficiency is effectively improved, and by optimizing the air duct design, the difficulty that air pressure penetrates through a material layer is reduced, and energy consumption is reduced.

Description

Technical Field

[0001] This utility model relates to the flour industry, and more particularly to the field of grain impurity removal, specifically referring to a bran removal device. Background Technology

[0002] In the flour processing industry, impurity removal from wheat is a crucial step to ensure the quality of the final product. Impurities mainly include wheat bran, wheat straw, and ash, with wheat bran accounting for about half of the total impurities. Traditional impurity removal equipment primarily employs vertical suction duct technology, but this method has significant drawbacks and limitations.

[0003] The low impurity removal efficiency of vertical suction ducts is mainly manifested in the following aspects:

[0004] 1. The airflow direction of the suction duct is vertically upward, which requires overcoming the wheat's own weight when separating the chaff. During the separation process, as the wheat continuously falls, some of the chaff will be knocked back by the falling wheat, resulting in incomplete cleaning.

[0005] 2. High energy consumption: Because it is necessary to overcome gravity to separate the wheat bran, the energy consumption is increased and the cleaning effect is not good.

[0006] 3. For high-volume materials, if the material layer is too thick, the air pressure cannot penetrate the material layer. If the air pressure is too high, the wheat grains will be sucked out. If the air pressure is too low, the wheat bran cannot be effectively separated. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art and provide a chaff removal device that is efficient, simple in structure, and widely applicable.

[0008] To achieve the above objectives, the chaff removal device of this utility model is as follows:

[0009] The main features of this chaff removal device are that it includes a chaff removal body, a leveling plate, an air inlet, an air inlet pipe, and an air outlet. The leveling plate is located on the top of the chaff removal body, the air inlet is located on the side wall of the chaff removal body and is connected to the chaff removal body by a snap-fit. The side of the chaff removal body is provided with a flared opening, and the air outlet is also the chaff outlet located at the end of the flared opening, which is designed in a flared shape. The lower end of the flared opening has a slope.

[0010] Preferably, the device further includes an observation window, which is disposed on the flared opening of the hull body.

[0011] Preferably, the air inlet includes four detachable louvers, divided into two groups of two louvers each. One louver in each group is placed horizontally, and the other louver is placed vertically on the horizontal louver. All the louvers have horizontal wind deflectors.

[0012] Preferably, the device further includes a wheat inlet and a wheat outlet, the wheat inlet being located at the top of the chaff removal body and the wheat outlet being located at the bottom of the chaff removal body, the wheat outlet forming a funnel structure with the flared mouth.

[0013] Preferably, the device further includes a bottom funnel located at the bottom of the chaff removal body. The bottom funnel has a slope angle of 8 to 12 degrees and is also provided with a 4 to 8 mm wear-resistant plate.

[0014] Preferably, the husk removal body is made of 4-6mm steel plate.

[0015] Preferably, the steel plate has a thickness of 5 mm.

[0016] The chaff removal device of this invention utilizes the gravitational acceleration of the wheat grains to thin the material layer to one-third of its original thickness within a height of 1.8 meters, increasing the particle spacing and improving ventilation, thereby enhancing the chaff removal efficiency. The device adjusts the wind speed by changing the angle of the louvers, and the uniform material distribution plate design at the top of the chaff removal unit ensures even material drop, effectively improving the chaff separation efficiency. This box-type chaff removal device, through optimized air duct design, reduces the difficulty of wind pressure penetrating the material layer, lowering energy consumption; the average power consumption per ton is expected to decrease by 20%. This box-type chaff removal device, through design adjustments, accelerates the speed of the final wheat grains, resulting in better separation and an expected overall grain unloading efficiency increase of 30%. The box-type chaff removal device of this invention features a funnel-shaped bottom with a slope angle of only 10 degrees, allowing for appropriate material retention at the bottom, reducing damage to the bottom steel plate and wear-resistant plate, and extending the equipment's service life. The chamber-type chaff removal device of the present invention is equipped with an observation window for easy observation of the chaff removal effect, and the damper is adjustable so that the air volume can be adjusted according to the actual situation to improve the chaff removal effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the chaff removal device of this utility model.

[0018] Figure 2 This is a schematic diagram showing the connection between an embodiment of the chaff removal device of this utility model and an external device.

[0019] Figure 3 This is a schematic diagram showing the connection between the chaff removal device of this utility model and the matching flow pipe.

[0020] Figure label:

[0021] 1. Main body for removing chaff

[0022] 2 screed plate

[0023] 3. Air outlet (or chaff outlet)

[0024] 4. Air inlet (louvers)

[0025] 5. Observation Window

[0026] 6. Wheat feed inlet

[0027] 7 Wheat discharge port Detailed Implementation

[0028] To more clearly describe the technical content of this utility model, the following description is provided in conjunction with specific embodiments.

[0029] The present invention discloses a chaff removal device, which includes a chaff removal body, a leveling plate, an air inlet, an air inlet pipe, and an air outlet. The leveling plate is disposed on the top of the chaff removal body, and the air inlet is located on the side wall of the chaff removal body and is connected to the chaff removal body by a buckle. The side of the chaff removal body is provided with a flared opening, and the air outlet is also the chaff outlet located at the end of the flared opening, which is designed in the shape of a flared opening. The lower end of the flared opening has a slope.

[0030] In a preferred embodiment of the present invention, the device further includes an observation window, which is disposed on the flared opening of the hull-removing body.

[0031] In a preferred embodiment of the present invention, the air inlet includes four detachable louvers, divided into two groups of two louvers each. One louver in each group is placed horizontally, and the other louver is placed vertically on the horizontal louver. All the wind deflectors of the louvers are horizontal.

[0032] In a preferred embodiment of the present invention, the device further includes a wheat inlet and a wheat outlet. The wheat inlet is located at the top of the chaff removal body, and the wheat outlet is located at the bottom of the chaff removal body. The wheat outlet and the funnel-shaped opening form a funnel structure.

[0033] As a preferred embodiment of the present invention, the device further includes a bottom funnel located at the bottom of the chaff removal body. The bottom funnel has a slope angle of 8 to 12 degrees and is also provided with a 4 to 8 mm wear-resistant plate.

[0034] In a preferred embodiment of this utility model, the husk-removing body is made of 4-6mm steel plate.

[0035] In a preferred embodiment of this utility model, the steel plate is 5mm thick. To prevent the hull removal device from falling and to ensure safety, a suspension component is added to the side to further fix the hull removal device.

[0036] In a specific embodiment of this utility model, the chaff removal device mainly consists of a chaff removal body, a leveling plate, an air inlet, an air outlet, an observation window, and a bottom funnel. This utility model utilizes a 4mm thick steel plate to fabricate a box-type chaff removal device.

[0037] The chaff removal device of this utility model is 2500mm high, 1500mm wide, 350mm thick at the top, and 400mm thick at the bottom. The actual height and width of the main body of the chaff removal device can be adjusted according to site conditions. Based on the formula for acceleration due to gravity, h = gt² / 2, a wheat grain falling freely for 0.6 seconds will reach a height of 1.8 meters, with a terminal velocity of 5.9 m / s. The air inlet of the vertical suction duct is only 0.2 meters from the point where the wheat falls, with a terminal velocity of 2.0 m / s. Therefore, it can be deduced that the material layer thickness at the air inlet of the chaff removal device is 1 / 3 of that of a vertical suction duct of the same width and flow rate. The higher the chaff removal device, the faster the terminal velocity of the wheat grains, the larger the spacing between the grains, and the better the separation effect. A uniform feeding plate is installed at the top of the chaff removal device, and the gap between the feeding plates is controlled by springs to ensure uniform material falling.

[0038] The right side of the main body of the chaff removal unit is the air outlet, which also serves as the outlet for the separated wheat chaff. The air duct has a diameter of 300mm and a funnel-shaped design. There is a slope at the bottom of the air outlet; if some shriveled wheat is sucked out, it will fall onto the slope and return to the clean grain. There is an observation window for easy monitoring of the impurity removal effect. After the wheat chaff settles in the cyclone dust collector, it enters the impurity pipe separately.

[0039] The air inlet on one side of the chaff removal device includes four detachable louvers, each measuring 695mm × 300mm, with adjustable dampers.

[0040] The bottom of the chaff removal device is funnel-shaped, but the slope angle is only 10 degrees. The purpose of this design is to store material at the bottom as a buffer to prevent the bottom steel plate and wear-resistant plate from being damaged too quickly.

[0041] For the specific implementation scheme of this embodiment, please refer to the relevant descriptions in the above embodiments, which will not be repeated here.

[0042] It is understood that the same or similar parts in the above embodiments can be referred to each other, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0043] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means at least two.

[0044] In the description of this specification, references to terms such as "one embodiment," "some 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, the 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 chaff removal device of this invention utilizes the gravitational acceleration of the wheat grains to thin the material layer to one-third of its original thickness within a height of 1.8 meters, increasing the particle spacing, improving ventilation, and thus enhancing the chaff removal efficiency. The device adjusts the wind speed by changing the angle of the louvers, and the uniform material distribution plate at the top ensures even material drop, effectively improving chaff separation efficiency. This box-type chaff removal device, through optimized air duct design, reduces the difficulty of wind pressure penetrating the material layer, lowering energy consumption; the average power consumption per ton is expected to decrease by 20%. The box-type chaff removal device of this invention, through design adjustments, accelerates the speed of the final wheat grains, resulting in better separation and an expected overall grain unloading efficiency increase of 30%. The box-type chaff removal device of this invention features a funnel-shaped bottom with a slope angle of only 10 degrees, allowing for appropriate material retention at the bottom, reducing damage to the bottom steel plate and wear-resistant plate, and extending the equipment's service life. The chamber-type chaff removal device of the present invention is equipped with an observation window for easy observation of the chaff removal effect, and the damper is adjustable so that the air volume can be adjusted according to the actual situation to improve the chaff removal effect.

[0046] In this specification, the present invention has been described with reference to specific embodiments thereof. However, it will be apparent that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, the specification and drawings should be considered illustrative rather than restrictive.

Claims

1. A chaff removal device, characterized in that, The device includes a hull removal body, a leveling plate, an air inlet, and an air outlet. The leveling plate is located on the top of the hull removal body, and the air inlet is located on the side wall of the hull removal body and is connected to the hull removal body by a snap fastener. The side of the hull removal body is provided with a flared opening, and the air outlet is located at the end of the flared opening. The lower end of the flared opening has a slope.

2. The chaff removal device according to claim 1, characterized in that, The device also includes an observation window, which is located on the flared opening of the chaff removal body.

3. The chaff removal device according to claim 1, characterized in that, The air inlet includes four detachable louvers, divided into two groups of two. One louver in each group is placed horizontally, and the other louver is placed vertically on the horizontal louver. All the louvers have horizontal wind deflectors.

4. The chaff removal device according to claim 1, characterized in that, The device also includes a wheat inlet and a wheat outlet. The wheat inlet is located at the top of the chaff removal body, and the wheat outlet is located at the bottom of the chaff removal body. The wheat outlet and the funnel-shaped opening form a funnel structure.

5. The chaff removal device according to claim 4, characterized in that, The slope angle of the funnel structure is 8 to 12 degrees, and the funnel structure is also provided with a 4 to 8 mm wear-resistant plate.

6. The chaff removal device according to claim 1, characterized in that, The main body for removing chaff is made of 4-6mm steel plate.

7. The chaff removal device according to claim 6, characterized in that, The steel plate is 5mm thick.

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