Efficient grading classificator

Abstract

An efficient grading classificator comprises a rack, a screen body is connected to the upper portion of the rack, an air chamber is arranged above the screen body, a feeding port is formed in the right side end of the upper end face of the screen body, an air suction pipe is further arranged on the upper end face of the screen body, an upper-layer screen lattice and a lower-layer screen lattice are arranged in the screen body, and a light impurity outlet and a light material outlet are formed in the left side of the bottom face of the screen body. The right side of the bottom face of the screen body is provided with a heavy material outlet, the lower end of the feeding port is connected with a feeding box, the feeding box is located above the screen body, the upper end face of the screen body is further provided with a guide plate inclining rightwards and downwards, and the guide plate is located under the feeding box. A feeding plate inclining leftwards and downwards is arranged on the right side wall of the screen body, and the lower end of the guide plate faces the feeding plate. The upper-layer oversize product of the stoning machine is subjected to secondary grading and fine selection, impact and leftward force can be generated when materials pass through the feeding plate, and the materials with light specific gravity and heavy specific gravity in the upper-layer oversize product can be further and efficiently separated out in cooperation with air suction.

Description

Technical Field

[0001] The invention relates to the technical field of grain machinery and equipment, and in particular to a high-efficiency grading and selecting machine. Background Art

[0002] The function of the grading and selecting machine is targeted, which is to grade and select wheat or other cereal granular materials, and classify relatively full heavy materials and relatively light light materials, such as broken wheat, non-full materials, etc.; the existing Chinese invention patent with patent number 201720723383.4 discloses a specific gravity grading stone removal machine, which can remove stones, side stones or impurities with a specific gravity exceeding the specific gravity of wheat or the material itself from wheat materials. The upper material also has the function of grading some materials, and will screen out light materials and light impurities; the light materials screened out include light materials, light impurities, and a small amount of heavy full materials. It is not convenient for manufacturers to collect these materials together. Furthermore, in view of the situation that the grading and stone removal machine's upper material is not graded thoroughly, the present application designs a grading and selecting machine, whose main function is to re-grade and select the material on the upper screen of the grading and stone removal machine. It can re-screen the light impurities, lightweight materials, and a small amount of full and heavy materials mixed together in a differentiated manner, making it convenient for the manufacturer to re-process the materials. Summary of the invention

[0003] The purpose of the present invention is to address the deficiencies in the above-mentioned background technology and to provide an efficient grading and concentrating machine that can distinguish and re-screen light impurities, lightweight materials, and a small amount of full and heavy materials mixed together.

[0004] To achieve the above purpose, the present invention provides an efficient grading and concentrating machine, which adopts the following technical solutions:

[0005] A high-efficiency grading and selecting machine comprises a frame, a sieve body is connected to the frame above by a rubber spring, a wind chamber is included above the sieve body, a feed inlet is arranged at the right end of the upper end surface of the sieve body, a suction pipe is also arranged on the upper end surface of the sieve body, and the suction pipe is arranged on the left side of the feed inlet, an upper sieve grid and a lower sieve grid are arranged in the sieve body, the right ends of the upper sieve grid and the lower sieve grid are against the right side wall of the sieve body and are arranged obliquely downward, the bottom surface of the sieve body is also arranged obliquely downward from right to left, a light impurity outlet and a light material outlet are respectively arranged on the left side of the bottom surface of the sieve body, the upper sieve grid is connected between the light impurity outlet and the light material outlet by a partition, a heavy material outlet is arranged on the right side of the bottom surface of the sieve body, the lower end of the feed inlet is connected to a feed box, the feed box is located above the sieve body, a guide plate inclined rightwardly downward is also arranged on the upper end surface of the sieve body, the guide plate is located directly below the feed box, a feeding plate inclined leftwardly downward is arranged on the right side wall of the sieve body, and the lower end of the guide plate faces the feeding plate.

[0006] A further improvement of the high-efficiency grading and concentrating machine of the present invention is that an extension plate is further provided at the lower end of the feeding plate, and the extension plate is also inclined downward and leftward, and the inclination angle is smaller than the inclination angle of the upper screen grid.

[0007] A further improvement of the high-efficiency grading and concentrating machine of the present invention is that a material dividing plate is further arranged in the screen body, and the end of the extension plate faces the material dividing plate.

[0008] A further improvement of the high-efficiency grading and selecting machine of the present invention is that oblong holes are arranged vertically on the dividing plate, bolt and nut connectors are arranged on the guide plate, and the dividing plate is connected to the guide plate through the bolt and nut connectors.

[0009] A further improvement of the high-efficiency grading and concentrating machine of the present invention is that the upper screen grid is a punched screen plate and the lower screen grid is a woven mesh.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The present invention is aimed at re-grading and selecting the materials on the upper screen of the stone remover. When the materials pass through the feeding plate, there will be an impact and leftward force, which cooperates with the suction, so as to further efficiently separate the materials with light specific gravity and heavy specific gravity in the materials on the upper screen. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention;

[0013] Figure 2 It is a structural schematic diagram of the material dividing plate of the present invention;

[0014] In the figure: 1 frame, 2 rubber spring, 3 screen body, 4 air chamber, 5 feed port, 6 suction pipe, 7 upper screen grid, 8 lower screen grid, 9 light material outlet, 10 light material outlet, 11 heavy material outlet, 12 feed box, 13 guide plate, 14 feeding plate, 15 dividing plate. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0016] like Figure 1 , Figure 2As shown, a high-efficiency grading and selecting machine comprises a frame 1, a screen body 3 is connected to the top of the frame through a rubber spring 2, a wind chamber 4 is included above the screen body, a feed port 5 is arranged at the right end of the upper end surface of the screen body, a suction pipe 6 is also arranged on the upper end surface of the screen body, and the suction pipe is arranged on the left side of the feed port, an upper screen grid and a lower screen grid 7 are arranged in the screen body, specifically, the upper screen grid and the lower screen grid are screwed into the screen body by bolts on the lower side of the screen body to support the bottom of the screen grid and fix the screen grid, the right ends of the upper screen grid 8 and the lower screen grid are against the right side wall of the screen body and are arranged obliquely downward, the upper screen grid is a punched screen plate, and the lower screen grid is a woven mesh. The bottom surface of the screen body is also arranged downwardly from right to left. A light impurity outlet 9 and a light material outlet 10 are respectively arranged on the left side of the bottom surface of the screen body. The upper screen grid is connected between the light impurity outlet and the light material outlet through a partition. A heavy material outlet 11 is arranged on the right side of the bottom surface of the screen body. A feed box 12 is connected to the lower end of the feed port. The feed box is located above the screen body. A guide plate 13 tilted downward to the right is also arranged on the upper end surface of the screen body. The guide plate is located directly below the feed box. A feed plate 14 tilted downward to the left is arranged on the right side wall of the screen body. The lower end of the guide plate faces the feed plate. An extension plate is also arranged at the lower end of the feed plate. The extension plate is also tilted downward and leftward. The tilt angle is smaller than the tilt angle of the upper screen grid, that is, the extension plate is slightly raised relative to the tilted upper screen grid.

[0017] Furthermore, a material dividing plate 15 is also provided on the screen body, and the end of the extension plate faces the material dividing plate. The material dividing plate is provided with oblong holes, which are arranged vertically, and the guide plate is provided with bolt and nut connectors. The material dividing plate is connected to the guide plate at the oblong holes through the bolt and nut connectors to achieve the up and down adjustment of the material dividing plate.

[0018] The working principle of the present invention is as follows: the material on the upper screen of the destoner enters the feed port, passes through the feed box, to the guide plate and then to the feed plate. The material hits the feed plate and rebounds to the upper screen grid. The heavy ones rebound at a shorter distance and the light ones rebound at a longer distance, thereby improving the screening efficiency; the light impurities, lightweight materials and a small number of full and heavy materials mixed together can be screened again in a differentiated manner, which is convenient for the manufacturer to process the materials again.

[0019] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. An efficient grading and concentrating machine, characterized by: The sieve body is provided with a plurality of sieve grids, each of which is provided with a plurality of sieve grids, and the plurality of sieve grids are provided with a plurality of sieve grids, each of which is provided with a plurality of sieve grids.

2. The high-efficiency grading and concentrating machine according to claim 1, characterized in that: An extension plate is also arranged at the lower end of the feeding plate, and the extension plate is also inclined downward and leftward, and the inclination angle is smaller than the inclination angle of the upper screen grid.

3. The high-efficiency grading and concentrating machine according to claim 2 is characterized in that: A material dividing plate is also arranged in the screen body, and the end of the extension plate faces the material dividing plate.

4. The high-efficiency grading and concentrating machine according to claim 3 is characterized in that: The dividing plate is provided with oblong holes, which are arranged vertically. The guide plate is provided with bolt and nut connectors, and the dividing plate is connected to the guide plate through the bolt and nut connectors.

5. The high-efficiency grading and concentrating machine according to claim 1 is characterized in that: The upper screen grid is a perforated screen plate, and the lower screen grid is a woven mesh.

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