Multi-level grader

Abstract

The utility model relates to the technical field of grain screening, in particular to a multi-layer grading machine which comprises a grain feeding box, a large impurity screen is installed on the grain feeding box, a multi-layer grading screen is installed on the side face of the grain feeding box, the multi-layer grading screen is divided into four stages, and supporting plates are installed below all stages of screen plates of the multi-layer grading screen; a first discharging port, a second discharging port, a third discharging port and a fourth discharging port are formed in the connecting position of the grain feeding box and the multi-layer classifying screen, all the discharging ports communicate with all the stages of the multi-layer classifying screen correspondingly, and a vibration motor is arranged on a shell of the multi-layer classifying screen. And a grain outlet box and a crushed impurity outlet are mounted on the multi-layer classifying screen. Therefore, the technical problems of processing capacity, space occupation, weight and energy consumption of existing equipment can be solved through the multi-level grading machine.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grain screening, more particularly to a multi-layer grading machine. BACKGROUND

[0002] In the grain processing industry, the vibrating grading screen, as a key screening device, plays a crucial role. Its core function is to effectively separate large impurities, small impurities and fine grain particles in the finished grain through vibration, to ensure the quality and purity of the final product. However, with the expansion of the grain processing industry and the increasing demand for processing efficiency, the existing vibrating grading screen on the market has exposed a series of limitations in the technical aspect, and innovative technology is needed to overcome these shortcomings.

[0003] The vibrating grading screen on the market generally adopts a double-layer structure design as the upper limit of its independent screening layers. This design, although to some extent, meets the basic screening needs, but for those customers facing large-scale processing tasks, the processing capacity of the double-layer structure is obviously insufficient, which seriously restricts the production efficiency and output. Especially during the peak season of grain harvesting, this capacity bottleneck is particularly prominent, and it is difficult to meet the urgent demand of the market for high-efficiency processing capacity.

[0004] The size of the existing vibrating grading screen is generally long, which not only leads to a large equipment footprint, increases land costs and use space limitations, but also brings many inconveniences in transportation, installation and daily maintenance. Especially in a production environment where space resources are scarce, this problem is particularly significant, limiting the flexible deployment and application range of the equipment.

[0005] All vibrating grading screens are equipped with a screen box, although the screen box is crucial for protecting the screen and maintaining the screening environment, but its weight and complexity directly leads to an increase in the overall weight of the screening equipment, thereby increasing the energy consumption and operating cost of the equipment. Especially in today's energy shortage and increasing environmental awareness, high-energy consumption equipment does not meet the requirements of sustainable development, reducing market competitiveness.

[0006] These limitations in the design of traditional vibrating grading screens have made it difficult to meet the urgent needs of the current grain processing industry for high efficiency, low cost, energy saving and environmental protection. Therefore, the development of a new type of vibrating grading screen aims to solve the problems of existing equipment in processing capacity, space occupation, weight and energy consumption through technological innovation, which is the key to improving the overall level of the grain processing industry. CONTENT OF THE INVENTION

[0007] Based on the above problems, the present application provides a multi-layer grading machine to solve the technical problems of existing equipment in processing capacity, space occupation, weight and energy consumption.

[0008] To solve the above technical problems, the utility model adopts the technical scheme that

[0009] A multi-layer grading machine, comprising a grain inlet box, a large sieve is installed on the grain inlet box, a plurality of layers of grading sieves are installed on the side surface of the grain inlet box, the plurality of layers of grading sieves are divided into four levels, a supporting plate is installed below each level of sieve plate of the plurality of layers of grading sieves, a first discharge port, a second discharge port, a third discharge port and a fourth discharge port are arranged at the connection between the grain inlet box and the plurality of layers of grading sieves, each discharge port is communicated with each level of the plurality of layers of grading sieves respectively, a vibrating motor is arranged on the outer shell of the plurality of layers of grading sieves, and a grain outlet box and a broken and impure outlet are installed on the plurality of layers of grading sieves.

[0010] In a specific embodiment, a sieve frame is installed on the large sieve, and a pressing strip locking mechanism for installing a sieve screen is installed on the sieve frame.

[0011] In a specific embodiment, the vibrating motor is installed on the side wall of the plurality of layers of grading sieves through a direction adjusting disc which can adjust the turning direction.

[0012] In a specific embodiment, a grain flow groove is installed on the first discharge port, the second discharge port, the third discharge port and the fourth discharge port.

[0013] In a specific embodiment, the travel channel on each level of sieve of the plurality of layers of grading sieves is communicated with the grain outlet box, and a finished product outlet is arranged on the grain outlet box.

[0014] In a specific embodiment, a broken and impure outlet is arranged on the plurality of layers of grading sieves, and a channel formed on each layer of supporting plate is communicated with the broken and impure outlet.

[0015] The utility model has the advantages of

[0016] The plurality of layers of grading sieves are divided into four levels, which greatly improves the processing capacity compared with the traditional double-layer structure design. This design enables more grain to be processed at the same time, thereby meeting the demand of large-scale processing tasks, especially during the peak season of grain harvesting, which can significantly improve production efficiency and yield. By optimizing space occupation and reducing weight, this structure reduces land cost, space limitation, energy consumption and operating cost, and improves the economy of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] 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 in the following description only constitute a part of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0018] Fig. 1 The structure schematic diagram of the utility model;

[0019] Fig. 2 The structure schematic diagram of the grain inlet box of the utility model;

[0020] Fig. 3 The cross-sectional view of the multi-layer grading screen of the utility model;

[0021] Explanation of reference signs

[0022] 1, grain inlet box; 2, large impurity screen; 3, multi-layer grading screen; 4, supporting plate; 5, first discharge port; 6, second discharge port; 7, third discharge port; 8, fourth discharge port; 9, vibration motor; 10, grain outlet box; 11, impurity outlet; 12, screen frame; 13, pressing strip locking mechanism; 14, direction adjusting disc; 15, grain flow groove; 16, finished product outlet; 17, large impurity outlet; 18, screen plate. Specific implementation

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Embodiment

[0025] As shown in the drawings, Figs. 1-3 A multi-layer grading machine 3, including a grain inlet box 1, the large impurity screen 2 is installed on the grain inlet box 1, the screen frame 12 is installed on the large impurity screen 2, the pressing strip locking mechanism 13 for installing screen mesh is installed on the screen frame 12, the grain enters the large impurity screen 2 through the grain inlet box 1, the large impurity outlet 17 is arranged on the large impurity screen 2, and the preliminary screening is carried out to remove the larger impurities.

[0026] The side of the grain inlet box 1 is provided with a plurality of multilayer grading screens 3, which are divided into four levels and arranged side by side. The installation of the four levels of multilayer grading screens 3 arranged side by side greatly improves the screening efficiency and processing capacity. This design allows more grain to be processed at the same time, thereby meeting the demand of large-scale processing tasks, especially during the peak season of grain harvesting, which can significantly improve production efficiency and yield. The multilayer grading screens 3 are arranged side by side, which greatly reduces the land area occupied by the equipment compared to the traditional long strip screen design. At the same time, through reasonable layout, the entire equipment structure is compact, reducing land costs and space limitations, and improving space utilization.

[0027] The lower part of each level of the multilayer grading screen 3 is provided with a supporting plate 4. The connection between the grain inlet box 1 and the multilayer grading screen 3 is provided with a first discharge port 5, a second discharge port 6, a third discharge port 7 and a fourth discharge port 8. The first discharge port 5, the second discharge port 6, the third discharge port 7 and the fourth discharge port 8 are all provided with a grain flow groove 15. The travel channel of each level of the multilayer grading screen 3 is connected to the grain outlet box 10.

[0028] The multilayer grading screen 3 is provided with a chaff outlet 11, and the channels formed on each layer of the supporting plate 4 are connected to the chaff outlet 11. The first discharge port 5, the second discharge port 6, the third discharge port 7 and the fourth discharge port 8 are respectively connected to each level of the multilayer grading screen 3. The multilayer grading screen 3 is provided with a vibration motor 9, which is installed on the side wall of the multilayer grading screen 3 through a direction adjusting disc 14 that can adjust the direction of rotation. The vibration motor 9 makes the grain on the screen plate 18 jump constantly, thereby achieving the screening effect. The direction adjusting disc 14 can adjust the installation angle of the vibration motor 9 to achieve better applicability of the multilayer grading screen 3. The direction adjusting disc 14 is not the focus of protection of the present application and will not be described in more detail.

[0029] The multilayer grading screen 3 is provided with a grain outlet box 10 and a chaff outlet 11. The grain outlet box 10 is provided with a finished product outlet 16. The finished product flows out of the channels and flows into the grain outlet box 10. The chaff screened out by each level of the screen plate 18 flows out through the chaff outlet 11.

[0030] Finally, it should be noted that, in this document, the term "only" is used simply to set off from another element, and not to necessarily require or imply that only that element is present. Also, the terms "comprise," "comprises" and "comprising" or any variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0031] The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-stage classifier characterized in that, The utility model provides a grain grading machine, which comprises a grain inlet box (1), a large sieve (2) is installed on the grain inlet box (1), a plurality of layered grading sieves (3) are installed on the side of the grain inlet box (1), the plurality of layered grading sieves (3) are divided into four levels, a supporting plate (4) is installed below each level sieve plate (18) of the plurality of layered grading sieves (3), a first discharge port (5), a second discharge port (6), a third discharge port (7) and a fourth discharge port (8) are arranged at the connection between the grain inlet box (1) and the plurality of layered grading sieves (3), each discharge port is communicated with each level of the plurality of layered grading sieves (3) respectively, a vibration motor (9) is arranged on the shell of the plurality of layered grading sieves (3), and an outlet box (10) and a broken and sundry outlet (11) are installed on the plurality of layered grading sieves (3).

2. A multi-stage classifier according to claim 1, wherein, The large sieve (2) is provided with a sieve frame (12), and the sieve frame (12) is provided with a pressing strip locking mechanism (13) for installing a sieve net.

3. A multi-stage classifier according to claim 1, wherein, The vibration motor (9) is installed on the side wall of the plurality of layered grading sieves (3) through a direction adjusting disc (14) capable of adjusting the turning direction.

4. A multi-stage classifier according to claim 1, wherein, The first discharge port (5), the second discharge port (6), the third discharge port (7) and the fourth discharge port (8) are provided with grain flow grooves (15).

5. A multi-stage classifier according to claim 1, wherein, The travel channels of each level sieve of the plurality of layered grading sieves (3) are communicated with the outlet box (10), and the outlet box (10) is provided with a finished product outlet (16).

6. A multi-stage classifier according to claim 1, wherein, The plurality of layered grading sieves (3) are provided with a broken and sundry outlet (11), and the channels formed in each layer of the supporting plates (4) are communicated with the broken and sundry outlet (11).

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