Crushing separator for rice processing

Abstract

The invention relates to the technical field of rice processing, and discloses a crushing separator for rice processing, which comprises a screening box, a waste channel, a primary sieve plate, a fan, a butt joint pipeline, a blanking pipe, a motor, a material distributing roller, a secondary sieve plate, a material guide block and a material guide plate. Hulled rice enters the screening box through the butt joint pipeline, primary screening is completed through the inclined primary screening plate, and crushed materials are guided to the material guide plate through the triangular pyramid-shaped material guide block and output through the discharging pipe; the material distributing roller is filled with rice obtained after primary screening, the motor drives the material distributing roller to rotate at a constant speed so as to evenly convey materials to the inclined secondary screening plate, the fan on the side wall of the screening box synchronously acts on the secondary screening plate, the screening effect is further improved, and the screened rice is output through the waste channel. Through a multi-stage screening and uniform material distributing structure, efficient and accurate separation of crushed rice and complete rice is achieved, the rice processing quality is improved, and the multi-stage screening and uniform material distributing device has the advantages of being reasonable in structure, high in screening efficiency and good in separation precision.

Description

Technical Field

[0001] This invention relates to the field of rice processing, and more particularly to a rice crushing and separating device for rice processing. Background Technology

[0002] In the rice processing industry, hulled rice often produces a certain amount of broken rice. If this broken rice is mixed with whole rice, it severely affects the grade and market value of the rice. Existing rice grinding and separating equipment generally suffers from problems such as a single screening structure and uneven material distribution. Either it relies solely on a single sieve plate, resulting in incomplete separation of broken rice, or it lacks a uniform material distribution device, causing localized material accumulation on the sieve plate and reducing screening efficiency and accuracy. Furthermore, traditional equipment largely depends on the mechanical screening action of the sieve plate, which has limited effectiveness in separating broken rice, making it difficult to meet the production demands of rice processing enterprises for high-quality finished rice. Therefore, this invention proposes a rice grinding and separating device to solve the above problems. Summary of the Invention

[0003] To address the aforementioned problems, this invention provides a rice crushing and separating device.

[0004] The present invention provides a rice processing pulverizer and separator with the following technical solution:

[0005] A rice processing crushing and separating device, characterized in that it includes a screening box and a waste channel; the screening box is provided with a primary screen plate, which is inclined; a fan is installed on the opposite side wall of the screening box; the screening box is also provided with a connecting pipe and a discharge pipe; a motor is installed on the screening box, and the output end of the motor is connected to a distributing roller; the screening box is also provided with an inclined secondary screen plate; a triangular pyramidal guide block is provided in the screening box; a guide plate is provided below the guide block; the guide plate is connected to the discharge pipe; the waste channel is connected to the screening box and is used to output the screened rice.

[0006] Preferably, the primary sieve plate is inclinedly disposed at the upper part of the sieving box for the first sieving of rice entering the sieving box.

[0007] Preferably, the distributing roller is positioned below the primary screen plate, and the motor drives the distributing roller to rotate at a constant speed to control the amount of material output to the secondary screen plate.

[0008] Preferably, the secondary sieve plate is inclined inside the sieving box, and the fan acts synchronously on the secondary sieve plate to improve the sieving effect of crushed rice.

[0009] Preferably, the guide block is triangular pyramidal in shape and is used to guide the crushed material after one screening to the guide plate. The guide plate is connected to the discharge pipe and is used to output the crushed material.

[0010] Preferably, the waste channel is connected to the screening box for outputting the rice after secondary screening to the outside.

[0011] In summary, the present invention has at least one of the following beneficial technical effects:

[0012] By setting up a multi-stage separation structure, which includes primary screening with a screen plate, uniform distribution with a distribution roller, and secondary screening with a fan, efficient and precise separation of crushed rice and whole rice is achieved. At the same time, the directional guidance of components such as guide blocks and guide plates ensures that crushed material and finished rice are output in an orderly manner, significantly improving the quality of rice processing, reducing the broken rice rate, and providing a reliable guarantee for improving the quality and efficiency of the rice processing process. It has significant beneficial effects of reasonable structural design, high screening efficiency, and excellent separation accuracy. Attached Figure Description

[0013] Figure 1 This is an isometric structural schematic diagram of an embodiment of the invention.

[0014] Figure 2 This is a longitudinal section diagram of an embodiment of the invention.

[0015] Figure 3 This is a longitudinal cross-sectional view of the right side of an embodiment of the invention.

[0016] Figure 4 This is a schematic diagram of the internal structure of the first screening tank in an embodiment of the invention.

[0017] Explanation of reference numerals in the attached diagram: 1. Screening box; 2. Waste channel; 3. Primary screen plate; 4. Fan; 5. Connecting pipe; 6. Feed pipe; 7. Motor; 8. Distributing roller; 9. Secondary screen plate; 10. Guide block; 11. Guide plate. Detailed Implementation

[0018] The following is in conjunction with the appendix Figure 1 - Appendix Figure 4 The present invention will be described in further detail below.

[0019] Example 1: Refer to Figure 1 - Figure 4 It consists of a screening box 1, a waste channel 2, a primary screen plate 3, a fan 4, a connecting pipe 5, a discharge pipe 6, a motor 7, a distributing roller 8, a secondary screen plate 9, a guide block 10, and a guide plate 11. The connection relationship and function of each component are as follows:

[0020] I. Overall Structure and Material Input

[0021] After hulling, the rice is transported to the screening box 1 via an external conveying pipe that connects to the docking pipe 5. The screening box 1, as the core screening space of the entire device, integrates multi-stage screening structures and power components, providing a closed and efficient operating environment for the separation of crushed rice.

[0022] II. Primary Screening Mechanism

[0023] The primary sieve plate 3 is inclined and set in the upper part of the screening box 1. Its inclination angle is optimized to ensure that the rice can roll down the plate surface under the action of gravity, while also providing sufficient contact time for the separation of broken materials. When the rice falls onto the primary sieve plate 3, the whole rice grains roll down the plate surface to the next process, while the crushed fine materials fall through the sieve holes.

[0024] The falling debris is guided by a triangular pyramid-shaped guide block 10. The triangular pyramid structure of the guide block 10 can effectively collect the debris and make it fall accurately onto the guide plate 11. The guide plate 11 is set at an angle, and the debris slides along the guide plate 11 into the discharge pipe 6, and is finally output from the discharge pipe 6 to the external debris collection device, completing the initial separation of the debris.

[0025] III. Material Distribution and Secondary Screening Mechanism

[0026] After being screened by the primary sieve plate 3, the whole rice grains are filled into the distributing roller 8. The motor 7 is fixedly installed on the outside of the sieve box 1, and its output shaft is connected to the distributing roller 8, driving the distributing roller 8 to rotate at a uniform speed. Through the uniform rotation of the distributing roller 8, the rice can be evenly and stably conveyed to the secondary sieve plate 9, avoiding the decline in screening effect due to material accumulation and ensuring the consistency of material quantity in the secondary screening.

[0027] The secondary sieve plate 9 is also inclined and set inside the sieving box 1, and its sieve aperture is finer than that of the primary sieve plate 3. When rice rolls on the secondary sieve plate 9, the remaining fine fragments will pass through the sieve apertures, while the whole rice continues to slide along the plate surface. At the same time, fans 4 are fixedly installed on the two opposite side walls of the sieving box 1. The airflow generated by the fans 4 acts synchronously on the rice on the secondary sieve plate 9. By using the blowing action of the airflow on the fragments, the crushed rice is further separated from the whole rice, which greatly improves the accuracy and efficiency of sieving.

[0028] IV. Finished Product Output Mechanism

[0029] After being screened by the secondary screen plate 9 and the fan 4, the whole rice will slide into the waste channel 2 and be output to the external finished product collection area, thus completing the entire rice crushing and separation operation.

[0030] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rice pulverizer and separator, characterized in that, The system includes a screening box (1) and a waste channel (2). The screening box (1) is equipped with a primary screening plate (3) which is inclined. A fan (4) is installed on the opposite side wall of the screening box (1). The screening box (1) is also equipped with a docking pipe (5) and a discharge pipe (6). A motor (7) is installed on the screening box (1). The output end of the motor (7) is connected to a material distribution roller (8). The screening box (1) is also equipped with an inclined secondary screening plate (9). The screening box (1) is equipped with a triangular pyramidal guide block (10). A guide plate (11) is installed below the guide block (10). The guide plate (11) is connected to the discharge pipe (6). The waste channel (2) is connected to the screening box (1) and is used to output the screened rice.

2. The rice processing pulverizer and separator according to claim 1, characterized in that: The primary sieve plate (3) is inclinedly arranged on the upper part of the sieve box (1) for the first sieve of rice entering the sieve box (1).

3. The rice processing pulverizer and separator according to claim 1, characterized in that: The material distribution roller (8) is located below the primary screen plate (3), and the motor (7) drives the material distribution roller (8) to rotate at a constant speed to control the amount of material output to the secondary screen plate (9).

4. The rice processing pulverizer and separator according to claim 1, characterized in that: The secondary sieve plate (9) is inclinedly arranged inside the sieve box (1), and the fan (4) acts synchronously on the secondary sieve plate (9) to improve the sieving effect of crushed rice.

5. A rice processing pulverizer and separator according to claim 1, characterized in that: The guide block (10) is a triangular pyramid shape and is used to guide the crushed material after one screening to the guide plate (11). The guide plate (11) is connected to the feed pipe (6) and is used to output the crushed material.

6. A rice processing pulverizer and separator according to claim 1, characterized in that: The waste channel (2) is connected to the screening box (1) and is used to output the rice after secondary screening to the outside.

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