Magnetic separation specific gravity device for raisins

Abstract

The utility model discloses a magnetic separation specific gravity device for raisins, which comprises a base, a magnetic separation mechanism assembled at the top of the base, and a screening mechanism assembled at the top of the base and positioned on one side of the magnetic separation mechanism, a rotary drum is rotatably mounted between the two shaft brackets, and a plurality of magnetic attraction pieces which are distributed in an annular array are fixedly mounted on the surface of the rotary drum. According to the magnetic separation specific gravity device for raisins, by arranging the magnetic separation mechanism, the retention time of raisin raw materials can be effectively prolonged by utilizing the blocking effect of a plurality of material baffles, magnetic attraction substances in the raisin raw materials can be fully attracted by magnetic attraction pieces, and the situation of magnetic separation omission can be avoided; and meanwhile, each magnetic attraction sheet can be independently mounted and dismounted, so that replacement and maintenance operations can be conveniently carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of raisin processing, and specifically relates to a magnetic separation specific gravity device for raisins. Background Technique

[0002] As a kind of dried fruit with rich nutrition and unique taste, raisins are deeply loved by consumers. During the production and processing of raisins, a large number of metal impurities such as iron filings are easily mixed into the raw materials. With the continuous development of magnetic separation technology, its application in the field of raisin screening has gradually attracted attention. Magnetic separation technology is a physical method of separating substances based on the difference in magnetism. In raisin screening, magnetic separation technology can effectively separate magnetic impurities such as iron filings and iron nails and non-magnetic impurities in raisins through appropriate magnetic field intensity and magnetic separation conditions.

[0003] However, when the current magnetic separation specific gravity device performs magnetic separation on raisins, the residence time of the raw materials on the magnetic separation mechanism is relatively short, resulting in the inability to thoroughly adsorb the magnetic substances in the grape raw materials, and magnetic separation omission will occur, which has a greater impact on the magnetic separation processing of raisins. Therefore, the applicant proposes a magnetic separation specific gravity device for raisins to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a magnetic separation specific gravity device for raisins to solve the problems mentioned in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A magnetic separation specific gravity device for raisins, including a base and a magnetic separation mechanism assembled on the top of the base, and a screening mechanism assembled on the top of the base and located on one side of the magnetic separation mechanism;

[0006] The magnetic separation mechanism includes two shaft frames fixedly installed on the top of the base and distributed symmetrically. A rotating cylinder is rotatably installed between the two shaft frames. A plurality of magnetic attraction sheets are fixedly installed on the surface of the rotating cylinder and distributed in an annular array. On one side of the shaft frame and outside the magnetic attraction sheets, two symmetrically distributed baffles are fixedly installed. Between the two baffles, a number of equally spaced baffle plates are rotatably installed. A reset spring is hinged between the number of baffle plates and the baffles. On the other side of the shaft frame, a scraping hopper that fits with the magnetic attraction sheets is fixedly installed.

[0007] Preferably, a feeding hopper is fixedly installed on the top of the base and on the top of the magnetic separation mechanism. The two sides of the feeding hopper and the base are fixedly installed through a support frame.

[0008] Preferably, the baffle and the shaft frame are fixedly installed through a fixing frame, and the scraping hopper and the shaft frame are fixedly connected through an installation frame.

[0009] Preferably, a motor is fixedly installed on one side of the shaft frame, and an output shaft of the motor penetrates through the shaft frame and is connected to the rotating cylinder.

[0010] Preferably, the screening mechanism includes a specific gravity sieve assembled on the top of the base, and both sides of the specific gravity sieve are connected to the top of the base through spring vibrators.

[0011] Preferably, vibrators are fixedly installed on both sides of the specific gravity sieve, and a discharge hopper is fixedly installed at the front end of the specific gravity sieve.

[0012] Preferably, a receiving hopper corresponding to the specific gravity sieve is fixedly installed inside the base, and support legs are fixedly installed at the bottom of the base.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] For this magnetic separation specific gravity device for raisins, by setting up a magnetic separation mechanism, the raisin raw materials can be introduced between the baffles. The baffle plates can block the introduced raisin raw materials to a certain extent. Through the extrusion action between the raisin raw materials and the baffle plates, the baffle plates can be opened to a certain gap. By using the inclination angle of the baffle plates, the raisin raw materials can slowly move downward along the surface of the magnetic attraction sheets. By using the blocking effect of multiple baffle plates, the residence time of the raisin raw materials can be effectively increased, so that the magnetic substances in the raisin raw materials can be fully adsorbed by the magnetic attraction sheets, avoiding the situation of magnetic separation omission. At the same time, each magnetic attraction sheet can be individually installed and disassembled, which is convenient for replacement and maintenance operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 It is a schematic rear view structure diagram of the magnetic separation mechanism of the present utility model;

[0018] Figure 3 It is a schematic diagram of the structure of the magnetic attraction sheet of the present utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the baffle plate of the present utility model;

[0020] Figure 5 It is a schematic diagram of the structure of the base of the present utility model.

[0021] In the figure: 1. Feeding hopper; 101. Support frame; 2. Magnetic separation mechanism; 201. Shaft frame; 202. Rotary drum; 203. Magnetic attraction sheet; 204. Mounting frame; 205. Motor; 206. Baffle; 207. Material retaining plate; 208. Fixed frame; 209. Return spring; 3. Base; 301. Support leg; 302. Material receiving hopper; 4. Screening mechanism; 401. Specific gravity sieve; 402. Vibrator; 403. Spring vibrator; 404. Discharge hopper; 5. Scraping hopper. Specific embodiments

[0022] The following embodiments will describe the present invention in detail with reference to the accompanying drawings. In the drawings or descriptions, similar or identical parts are denoted by the same reference numerals, and in actual applications, the shapes, thicknesses or heights of the components can be enlarged or reduced. The embodiments listed in the present invention are only used to illustrate the present invention and are not intended to limit the scope of the present invention. Any obvious modification or change made to the present invention does not depart from the spirit and scope of the present invention.

[0023] Please refer to Figures 1-5 As shown, a magnetic separation and specific gravity device for raisins proposed by the present invention includes a base 3, a magnetic separation mechanism 2 assembled on the top of the base 3, and a screening mechanism 4 assembled on the top of the base 3 and located on one side of the magnetic separation mechanism 2. The magnetic separation mechanism 2 includes two shaft frames 201 fixedly installed on the top of the base 3 and distributed symmetrically. A rotary drum 202 is rotatably installed between the two shaft frames 201. A plurality of magnetic attraction sheets 203 distributed in an annular array are fixedly installed on the surface of the rotary drum 202. Two symmetrically distributed baffles 206 are fixedly installed on one side of the shaft frame 201 and outside the magnetic attraction sheets 203. A plurality of equidistantly arranged material retaining plates 207 are rotatably installed between the two baffles 206. A return spring 209 is hingedly installed between the plurality of material retaining plates 207 and the baffles 206. A scraping hopper 5 that fits the magnetic attraction sheets 203 is fixedly installed on the other side of the shaft frame 201.

[0024] Based on the above-mentioned structural setting, the magnetic separation specific gravity device for raisins is composed of a magnetic separation mechanism 2, a base 3 and a screening mechanism 4, wherein the magnetic separation mechanism 2 can facilitate the sufficient adsorption and separation of the magnetic substances in the raisin raw materials, which can avoid the occurrence of magnetic separation omissions, and the screening mechanism 4 can facilitate the screening of the raisin raw materials. Specifically, in the working process, by introducing the raisin raw materials between the baffles 206, the raisin raw materials can be blocked by a plurality of baffles 207, which can increase the time the raisin raw materials stay on the magnetic suction sheet 203. Through the squeezing effect of the raisin raw materials on the baffles 207, the baffles 207 can be turned over, so that there is a certain gap between the baffles 207 and the magnetic suction sheet 203, which can make the raisin raw materials flow slowly downward, and the magnetic suction sheet 203 can be used to fully adsorb the magnetic substances in the raisin raw materials to avoid the occurrence of magnetic separation omissions. The reset spring 209 can The baffle plate 207 is flexibly supported so that it can be reset after being squeezed, which makes it convenient to open and close the baffle plate 207 repeatedly, and can conveniently control the slow flow of the raisin raw material. The rotating drum 202 rotates clockwise, which can drive the magnetic suction sheet 203 to rotate synchronously, so that the rotation direction of the magnetic suction sheet 203 is opposite to the downward flow direction of the raisin raw material, so that when the raisin raw material contacts the magnetic suction sheet 203, the raisin raw material can be rolled by utilizing the opposite movement direction, and the magnetic material in the raisin raw material can be adsorbed in all directions. The scraper 5 contacts the magnetic suction sheet 203, so that the magnetic material adsorbed on the surface of the magnetic suction sheet 203 can be conveniently scraped off, so that the scraped magnetic material can be exported through the scraper 5, which is convenient for the staff to perform the collection operation, and the raisin raw material filtered by the magnetic separation mechanism 2 can be introduced into the screening mechanism 4 for vibration screening operation, which is convenient for further screening of impurities in the raisin raw material.

[0025] Furthermore, a hopper 1 is fixedly installed on the top of the base 3 and located on the top of the magnetic separation mechanism 2, and the two sides of the hopper 1 are fixedly installed between the base 3 through a support frame 101. Among them, by introducing the raisin raw material into the hopper 1 by using a lifting device, the raisin raw material can be easily introduced into the magnetic separation mechanism 2 for magnetic separation and screening operations, and the support frame 101 can be used to support and fix the hopper 1 to prevent the hopper 1 from shaking.

[0026] Furthermore, the baffle 206 is fixedly installed with the shaft frame 201 through the fixing frame 208, and the scraper hopper 5 is fixedly connected with the shaft frame 201 through the mounting frame 204. The baffle 206 can be fixed by the fixing frame 208, so that the baffle 206 can conveniently divert the raisin raw materials, and the mounting frame 204 can conveniently support and fix the scraper hopper 5, so that the scraper hopper 5 can conveniently scrape the magnetic material on the magnetic suction sheet 203.

[0027] Further, a motor 205 is fixedly installed on one side of the shaft frame 201, and the output shaft of the motor 205 penetrates through the shaft frame 201 and is connected to the rotating cylinder 202. Among them, the motor 205 can provide power for the rotating cylinder 202 and drive the rotating cylinder 202 to rotate clockwise.

[0028] Further, the screening mechanism 4 includes a specific gravity sieve 401 assembled on the top of the base 3, and both sides of the specific gravity sieve 401 are connected to the top of the base 3 through spring vibrators 403. Among them, by introducing the magnetically separated raisin raw materials into the specific gravity sieve 401, a screening mesh is arranged on the specific gravity sieve 401, and the spring vibrators 403 can be used to vibrate the specific gravity sieve 401, which is convenient for further screening and filtering of impurities in the raisin raw materials.

[0029] Further, vibrators 402 are fixedly installed on both sides of the specific gravity sieve 401, and a discharge hopper 404 is fixedly installed at the front end of the specific gravity sieve 401. Among them, the vibrators 402 can provide power for the specific gravity sieve 401, which is convenient for driving the specific gravity sieve 401 to perform vibration operations. Through the discharge hopper 404, it is convenient for the raisin particles with a larger specific gravity to remain in the specific gravity sieve 401. The specific gravity sieve 401 is inclined, and under the action of vibration, the raisin particles with a larger specific gravity can move into the discharge hopper 404 for export.

[0030] Further, a receiving hopper 302 corresponding to the specific gravity sieve 401 is fixedly installed inside the base 3, and support legs 301 are fixedly installed at the bottom of the base 3. Among them, the impurity particles with a smaller specific gravity can fall into the receiving hopper 302 through the screening mesh on the specific gravity sieve 401, which is convenient for exporting the impurities downward and convenient for the staff to classify and collect.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, in any aspect, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to encompass all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0032] In addition, it should be understood that although this specification is described in terms of embodiments, not every embodiment contains only one independent technical solution. This narrative manner of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A magnetic separation specific gravity device for raisins, characterized in that: It comprises a base (3), a magnetic separation mechanism (2) mounted on the top of the base (3), and a screening mechanism (4) mounted on the top of the base (3) and located on one side of the magnetic separation mechanism (2); The magnetic separation mechanism (2) comprises two shaft frames (201) fixedly mounted on the top of the base (3) and symmetrically distributed, a rotating drum (202) is rotatably mounted between the two shaft frames (201), a plurality of magnetic suction plates (203) distributed in a ring array are fixedly mounted on the surface of the rotating drum (202), two symmetrically distributed baffles (206) are fixedly mounted on one side of the shaft frame (201) and located outside the magnetic suction plates (203), a plurality of equidistantly arranged baffle plates (207) are rotatably mounted between the two baffle plates (206), a plurality of return springs (209) are hingedly mounted between the baffle plates (207) and the baffle plates (206), and a scraper hopper (5) in contact with the magnetic suction plates (203) is fixedly mounted on the other side of the shaft frame (201).

2. A magnetic separation specific gravity device for raisins according to claim 1, characterized in that: A feed hopper (1) is fixedly installed on the top of the base (3) and located on the top of the magnetic separation mechanism (2), and the two sides of the feed hopper (1) are fixedly installed between the base (3) via a support frame (101).

3. The magnetic separation specific gravity device for raisins according to claim 1, characterized in that: The baffle (206) and the shaft frame (201) are fixedly mounted via a fixing frame (208), and the scraping hopper (5) and the shaft frame (201) are fixedly connected via a mounting frame (204).

4. The magnetic separation specific gravity device for raisins according to claim 1, characterized in that: A motor (205) is fixedly mounted on one side of the shaft frame (201), and an output shaft of the motor (205) passes through the shaft frame (201) and is connected to the rotating drum (202).

5. The magnetic separation specific gravity device for raisins according to claim 1, characterized in that: The screening mechanism (4) comprises a specific gravity screen (401) mounted on the top of the base (3), and both sides of the specific gravity screen (401) are connected to the top of the base (3) via a spring vibrator (403).

6. A magnetic separation specific gravity device for raisins according to claim 5, characterized in that: Vibrators (402) are fixedly installed on both sides of the specific gravity screen (401), and a discharge hopper (404) is fixedly installed at the front end of the specific gravity screen (401).

7. The magnetic separation specific gravity device for raisins according to claim 5, characterized in that: A receiving hopper (302) corresponding to the specific gravity screen (401) is fixedly installed on the inner side of the base (3), and a supporting leg (301) is fixedly installed on the bottom of the base (3).

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