Multi-stage grain sorting vibrating screen
By designing a multi-stage sorting vibrating screen of grains and multi-stage screening of grains is used to use multiple sets of detachable screening plates to solve the problems of high labor intensity and safety hazards when resorting grains in the prior art, and achieving efficient and safe multi-stage sorting effect of grains.
Patent Information
- Application Number
- CN202421004659.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-05-10
AI Technical Summary
In the prior art, when the grains need to be sorted again after the preliminary sorting, sizing, stirring, baking, cooling and other processes, the use of manual or existing vibrating screen devices has problems such as high labor intensity, long time consumption and possible harm to surrounding equipment or personnel.
A multi-stage sorting vibrating screen of grain was designed. By splitting the multi-layer screening disk into multiple groups, and multi-stage screening of grains is used to perform multi-stage screening of grains using turntables and vibrating screening components to achieve classification of multiple particle sizes.
Multi-stage sorting of grains is realized, classification efficiency is improved, labor intensity is reduced, and potential harm to surrounding equipment or personnel by vibrating screen devices is avoided.
Smart Images
Figure CN222625382U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of grain processing, and in particular to a multi-stage grain sorting vibration screen. Background Art
[0002] There is a type of yogurt product on the market that is made by combining grains or nuts with yogurt. Since this type of grain is ready-to-eat, after the initial sorting, sizing, mixing, baking, cooling and other processes, the grain will become many particles of different diameters. In order to facilitate classification and packaging, they need to be sorted again. If they are done manually, the labor intensity is high and it is not suitable for industrial batch operations. If the existing vibrating screen device is used, multiple layers of sieve plates must be set to adapt to achieve the classification of multiple particle sizes, which is not only time-consuming, but also when the sieve plates overlap too high, when the sieve plates vibrate, it may bring hidden hazards to surrounding equipment or workers. Utility Model Content
[0003] In order to solve the above-mentioned deficiencies of the prior art, the present application provides a multi-stage grain sorting vibrating screen, which divides the multi-layer sieve plates into multiple groups to adapt to the classification of grains of various particle sizes.
[0004] In order to achieve the above purpose, the utility model adopts the following technologies:
[0005] A multi-stage grain sorting vibration screen comprises: a turntable, which is rotatably arranged around an axis, and a plurality of groups of vibration screening components are arranged in a circular array above the turntable, the vibration screening components comprising a vibration generator, a spring and a plurality of sieve plates which are overlapped in sequence and can be removed, the spring is arranged between the top of the vibration generator and the plurality of sieve plates, the mesh inner diameter of the upper sieve plate is larger than the mesh inner diameter of the lower sieve plate, the bottom sieve plate is not provided with a mesh, and the mesh inner diameters of the sieve plates on different groups of vibration screening components are different.
[0006] The feed hopper is arranged above the turntable. The feed hopper includes an upper chamber and a lower chamber. The upper chamber is connected to the interior of the lower chamber. A feed pipe is vertically penetrated through the side wall of the upper chamber, and the end of the feed pipe is located in the middle of the feed hopper. A plurality of ventilation holes are arranged along a circular array on the side of the lower chamber, and the axes of all the ventilation holes intersect at the same point on the axis of the feed hopper. The ventilation holes are connected to the air supply device.
[0007] The beneficial effect of the utility model is that the grains to be sorted are first sorted in a feed hopper, and then different groups of vibrating screening components are switched by rotating the turntable, and then the vibrating screening components are used to perform multi-stage screening on the grains, so that the classification of grains of various particle sizes can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The drawings described herein are for illustrative purposes only of selected embodiments and not all possible implementations, and are not intended to limit the scope of the present invention.
[0009] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.
[0010] Figure 2 It is a schematic diagram of the structure of the turntable and the vibrating screening assembly in the embodiment of the present application.
[0011] Figure 3 It is a cross-sectional view of the feed hopper in the embodiment of the present application.
[0012] Figure 4 It is a side view of an embodiment of the present application. DETAILED DESCRIPTION
[0013] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings, but the embodiments described in the utility model are only part of the embodiments of the utility model, rather than all the embodiments.
[0014] The present application embodiment provides a multi-stage grain sorting vibrating screen, such as Figure 1-Figure 4 As shown, it includes a turntable 1, multiple groups of vibrating screening components 2, a feed hopper 3, etc.
[0015] The turntable 1 is arranged to rotate around an axis and is driven by a motor. In this embodiment, two groups of vibration screening components 2 are arranged in a circular array on the turntable 1. The vibration screening components 2 are arranged in a circular array on the turntable 1. The vibration screening components 2 include a vibration generator 21, a spring 22, and a plurality of sieve plates 23 that are overlapped and detachable in sequence. The spring 22 is arranged between the top of the vibration generator 21 and the plurality of sieve plates 23. The mesh inner diameter of the upper-level sieve plate 23 is larger than the mesh inner diameter of the lower-level sieve plate 23. The bottom sieve plate 23 is not provided with a mesh. The mesh inner diameters of the sieve plates 23 on different groups of vibration screening components 2 are different, so that each group of vibration screening components 2 can screen grains of different particle sizes to increase the screening grade. The mesh inner diameter of the second-to-last sieve plate 23 of one group of vibration screening components 2 is larger than the mesh inner diameter of the first-level sieve plate 23 of another group of vibration screening components 2.
[0016] The feed hopper 3 is arranged above the turntable 1, and the feed hopper 3 includes an upper chamber 31 and a lower chamber 32. The upper chamber 31 is connected to the lower chamber 32, and the lower end of the lower chamber 32 is used to align with the sieve plate 23 on the top of each group of vibrating screening components 2. A feed pipe 33 is vertically penetrated on the side wall of the upper chamber 31, and its end is located in the middle of the feed hopper 3. The feed pipe 33 is connected to the inside of the feed hopper 3. A plurality of ventilation holes 36 are provided on the side of the lower chamber 32 along a circumferential array, and the axes of all the ventilation holes 36 intersect at the same point on the axis of the feed hopper 3. The ventilation holes 36 are connected to the air supply device, which is an air pump or an air compression device.
[0017] During application, when the sieve plate 23 at the top of one group of vibrating screening components 2 is connected to the feed hopper 3, the air supply device is started first, and air is supplied to the feed hopper 3 through the ventilation holes 36. Because the axes of all the ventilation holes 36 intersect at the same point on the axis of the feed hopper 3, the airflow sent into the feed hopper 3 from the ventilation holes 36 will form an airflow plane in the feed hopper 3; then the grains to be sorted are transported from the feed pipe 33 to the feed hopper 3, and the grains with lighter weight are suspended above the airflow plane under the action of the airflow, and the grains with heavier weight continue to move downward until they move to the sieve plate 23 at the top of the vibrating screening component 2, thereby completing a grading work. It is understandable that for the same species, the greater the weight, the greater the volume, and at this time, the volume of the grains falling from the feed hopper 3 must be greater than the volume of the grains suspended on the air flow plane; after the heavier grains in the feed hopper 3 fall into the sieve plate 23 at the top of the above-mentioned vibration screening assembly 2, the turntable 1 is rotated to connect the sieve plate 23 at the top of another group of vibration screening assemblies 2 with the feed hopper 3, and then the air supply device is turned off so that the feed hopper 3 is no longer ventilated, and the grains with smaller weight will fall onto the sieve plate 23 due to the lack of air flow plane restrictions. During the process of the feed hopper 3 dropping materials or after the grains fall on the sieve plate 23, the vibration generator 21 is turned on, and the sieve plate 23 of the vibration screening assembly 2 is used to perform multi-stage screening of the grains, so that the grains with the smallest particle size finally fall on the mesh-free sieve plate 23 at the bottom. After the grading is completed, the sieve plate 23 on the vibration screening assembly 2 can be disassembled to obtain grains with different particle sizes in multiple plates, and then the particles of different diameters are classified and collected respectively.
[0018] Specifically, Figure 3-Figure 4 As shown, a ventilation cavity 34 of an annular structure is provided on the circumference of the lower chamber 32, and ventilation holes 36 are all connected to the inside of the ventilation cavity 34. An air supply pipe 35 is provided on the outer side of the ventilation cavity 34, and the air supply pipe 35 is used to connect the air supply device. The airflow input by the air supply device forms an airflow plane in the feed hopper 3 after passing through the air supply pipe 35, the ventilation cavity 34 and the ventilation holes 36, so that grains with smaller weight can be retained in the feed hopper 3; and the airflow passes through the ventilation cavity 34 of the annular structure and then enters the ventilation holes 36, so that the airflow pressure output by all the ventilation holes 36 can be kept consistent.
[0019] Specifically, Figure 1-Figure 2 As shown, two groups of vibrating screening components 2 are arranged in a circumferential array above the turntable 1, and the turntable 1 is arranged to swing back and forth 180° around the circumference. A limit block 24 is arranged on the top of the sieve plate 23 at the top of the vibrating screening component 2. The limit block 24 is located at the rear side of the swinging direction of the turntable 1 and is used to limit the position of the vibrating screening component 2. When the vibrating screening component 2 is connected to the feed hopper 3, it can be restricted here and is not easy to loosen.
[0020] Specifically, Figure 1 As shown, a mounting plate 4 is fixedly provided on the peripheral side of the feed hopper 3 , and a support rod 5 is provided on the bottom surface of the mounting plate 4 for fixing and placing the feed hopper 3 .
[0021] Specifically, Figure 3 As shown, the axis of the ventilation hole 36 is inclined toward the upper side of the axis of the feed hopper 3 , so that the grains with smaller weight can be more stably suspended on the air flow plane formed in the feed hopper 3 .
[0022] More specifically, Figure 3 As shown, the upper chamber 31 is a cylindrical structure, the lower chamber 32 is a conical structure with the top surface facing downward, and the ventilation hole 36 is vertically opened on the conical side wall of the lower chamber 32 so that the axis of the ventilation hole 36 is inclined toward the upper side of the axis of the feed hopper 3.
[0023] When applied, the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application.
Claims
1. A multi-stage grain sorting vibrating screen, characterized in that: include: A turntable (1) is arranged to rotate around an axis, and a plurality of groups of vibrating screening assemblies (2) are arranged in a circular array above the turntable. The vibrating screening assemblies (2) include a vibration generator (21), a spring (22), and a plurality of sieve plates (23) that overlap in sequence and are detachable. The spring (22) is arranged between the top of the vibration generator (21) and the plurality of sieve plates (23). The mesh inner diameter of the upper sieve plate (23) is greater than the mesh inner diameter of the lower sieve plate (23). The bottom sieve plate (23) is not provided with a mesh. The mesh inner diameters of the sieve plates (23) on different groups of vibrating screening assemblies (2) are different. A feed hopper (3) is arranged above the turntable (1). The feed hopper (3) comprises an upper chamber (31) and a lower chamber (32). The upper chamber (31) and the lower chamber (32) are internally connected. A feed pipe (33) is vertically penetrated through the side wall of the upper chamber (31), and the end of the feed pipe is located in the middle of the feed hopper (3). A plurality of ventilation holes (36) are arranged in a circular array on the side of the lower chamber (32), and the axes of all the ventilation holes (36) intersect at the same point on the axis of the feed hopper (3). The ventilation holes (36) are connected to an air supply device.
2. A multi-stage grain sorting vibrating screen according to claim 1, characterized in that: A ventilation cavity (34) of an annular structure is provided on the circumference of the lower chamber (32); the ventilation holes (36) are all in communication with the interior of the ventilation cavity (34); an air supply pipe (35) is provided on the outer side of the ventilation cavity (34); the air supply pipe (35) is used to connect to an air supply device.
3. The multi-stage grain sorting vibrating screen according to claim 1, characterized in that: Two groups of vibrating screening assemblies (2) are arranged in a circular array above the turntable (1). The turntable (1) is arranged to swing back and forth 180 degrees around the circumference. A limit block (24) is arranged on the top of the top sieve plate (23) of the vibrating screening assembly (2). The limit block (24) is located at the rear side of the swinging direction of the turntable (1) and is used to limit the position of the vibrating screening assembly (2).
4. The multi-stage grain sorting vibrating screen according to claim 1, characterized in that: A mounting plate (4) is fixedly provided on the peripheral side of the feed hopper (3), and a support rod (5) is provided on the bottom surface of the mounting plate (4).
5. The multi-stage grain sorting vibrating screen according to claim 1, characterized in that: The axis of the ventilation hole (36) is inclined toward the upper side of the axis of the feed hopper (3).
6. The multi-stage grain sorting vibrating screen according to claim 1, characterized in that: The upper chamber (31) is a cylindrical structure, the lower chamber (32) is a conical structure with the top facing downward, and the ventilation hole (36) is vertically opened on the conical side wall of the lower chamber (32).