Grading device for spherical graphite production

Abstract

The utility model relates to the technical field of spherical graphite production, and discloses a grading device for spherical graphite production, which comprises a grading box and a conveying support, a first-stage discharge port is arranged on the upper portion of the left side of the grading box, a second-stage discharge port is arranged in the middle of the right side of the grading box, and a third-stage discharge port is arranged on the lower portion of the left side of the grading box. The upper portion of the left side of the classification box is fixedly connected with a first-stage discharging groove, the middle of the right side of the classification box is fixedly connected with a second-stage discharging groove, the lower portion of the left side of the classification box is fixedly connected with a third-stage discharging groove, and the upper portion of the left face of the inner side of the classification box is fixedly connected with a plurality of first-stage classification rods. And the grading rods are obliquely arranged, so that the situation that the screen is blocked is reduced, and the screening efficiency is improved. The conveying belt clamping grooves drive the raw materials, the manual raw material adding step is omitted, the damage condition is reduced, and the output of spherical graphite is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spherical graphite production, in particular to a grading device used for spherical graphite production. Background Art

[0002] Graphite is an allotrope of carbon. It is a gray-black, opaque solid with stable chemical properties, corrosion resistance, and is not easy to react with acids, alkalis, and other agents. Graphite can be divided into two categories: natural graphite and artificial graphite. Natural graphite comes from graphite deposits, and can also be made from petroleum coke, asphalt coke, etc., and processed through a series of processes to make artificial graphite. Natural graphite can also be divided into flake graphite, earthy graphite, and block graphite. Graphite burns in oxygen to produce carbon dioxide, which can be oxidized by strong oxidants such as concentrated nitric acid and potassium permanganate. It can be used as an anti-wear agent and lubricant. High-purity graphite is used as a neutron moderator in atomic reactors. It can also be used to make crucibles, electrodes, brushes, dry batteries, graphite fibers, heat exchangers, coolers, arc furnaces, arc lamps, pencil refills, etc. A certain amount of natural graphite is also added during the production of some carbon products. The graphite obtained from natural mining contains more impurities, so it needs to be processed to reduce its impurity content before it can be used.

[0003] Existing graphite grading devices all use horizontally placed screens for screening, but the spherical graphite filtered out by the drying screen is not easy to discharge, and the screens used for a long time are prone to clogging, resulting in low screening efficiency and poor screening effect; when workers add graphite raw materials, they add them manually, which is easy to cause the spherical graphite to be damaged before screening, resulting in a decrease in the output of spherical graphite. Summary of the invention

[0004] In order to make up for the above shortcomings, the utility model provides a grading device for spherical graphite production, aiming to improve the existing spherical graphite grading device screen easy to clog, low screening efficiency, poor screening effect and artificial addition of spherical graphite easily lead to raw material damage problems.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a grading device for spherical graphite production, comprising a grading box and a conveying bracket, a primary discharge port is opened at the upper left portion of the grading box, a secondary discharge port is opened at the middle right portion of the grading box, a tertiary discharge port is opened at the lower left portion of the grading box, a primary discharge trough is fixedly connected to the upper left portion of the grading box, a secondary discharge trough is fixedly connected to the middle right portion of the grading box, a tertiary discharge trough is fixedly connected to the lower left portion of the grading box, a plurality of primary grading rods are fixedly connected to the upper left portion of the inner side of the grading box, a plurality of secondary grading rods are fixedly connected to the middle right portion of the inner side of the grading box, a plurality of tertiary grading rods are fixedly connected to the lower left portion of the inner side of the grading box, a side plate is fixedly connected to the upper rear end of the conveying bracket, and a roller is fixedly connected to the middle outer side of the wheel axle.

[0006] Furthermore, a return port is fixedly connected to the bottom end of the grading box.

[0007] Furthermore, the four corners of the bottom end of the grading box are fixedly connected with supporting feet.

[0008] Furthermore, a grading material port is fixedly connected to the right side of the top of the grading box.

[0009] Furthermore, a conveyor belt is arranged on the outer side of the roller.

[0010] Furthermore, a feed port is fixedly connected to the right side of the top end of the conveying bracket.

[0011] Furthermore, a motor is fixedly connected to the front end of the wheel axle.

[0012] Furthermore, the front and rear ends of the wheel axle are symmetrically fixedly connected with side plates.

[0013] Through the above technical solution, the utility model has the following beneficial effects:

[0014] 1. In the utility model, by adjusting the gaps between the first, second and third grade grading rods in the grading box, when the spherical graphite falls in, the spherical graphite is screened into particles of different sizes according to the different gaps between the grading rods, and the grading rods are arranged obliquely, and the spherical graphite that meets the specifications can directly roll into the corresponding discharge trough, reducing the blockage of the screen and improving the screening efficiency.

[0015] 2. In the utility model, the produced spherical graphite directly drives the raw materials to the grading material port through the card slot on the conveyor belt, thereby reducing the steps of adding artificial raw materials, reducing the damage, and improving the output of spherical graphite. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural diagram of the grading device for spherical graphite production proposed by the utility model;

[0017] Figure 2 A partial cross-sectional view of a grading device of a grading device for spherical graphite production proposed by the utility model;

[0018] Figure 3 A partial cross-sectional view of a conveying device of a grading device for spherical graphite production proposed by the utility model;

[0019] Figure 4 for Figure 3 Enlarged view of point A.

[0020] Legend:

[0021] 1. First-level grading rod; 2. Second-level grading rod; 3. Third-level grading rod; 4. Grading box; 5. First-level discharge port; 6. Second-level discharge port; 7. Third-level discharge port; 8. First-level discharge trough; 9. Second-level discharge trough; 10. Third-level discharge trough; 11. Return port; 12. Support feet; 13. Grading port; 14. Conveyor belt; 15. Axle; 16. Roller; 17. Side panel; 18. Motor; 19. Conveying bracket; 20. Feed port. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Reference Figure 1-Figure 4 The utility model provides an embodiment: a grading device for spherical graphite production, including a grading box 4 and a conveying bracket 19. A primary discharge port 5 is opened on the upper left side of the grading box 4, a secondary discharge port 6 is opened on the middle right side of the grading box 4, and a tertiary discharge port 7 is opened on the lower left side of the grading box 4. A primary discharge trough 8 is fixedly connected to the upper left side of the grading box 4, a secondary discharge trough 9 is fixedly connected to the middle right side of the grading box 4, and a tertiary discharge trough 10 is fixedly connected to the lower left side of the grading box 4. A plurality of primary grading rods 1 are fixedly connected to the upper left side of the inner side of the grading box 4, a plurality of secondary grading rods 2 are fixedly connected to the middle right side of the inner side of the grading box 4, and a plurality of tertiary grading rods 3 are fixedly connected to the lower left side of the inner side of the grading box 4. A side plate 17 is fixedly connected to the upper rear end of the conveying bracket 19, and a roller 16 is fixedly connected to the middle outer side of the wheel axle 15.

[0024] According to the required specifications, workers adjust the gaps between the primary grading rods 1, the secondary grading rods 2, and the tertiary grading rods 3 in the grading box 4. When the spherical graphite enters the grading box 4 through the grading port 13, the spherical graphite begins to roll due to gravity and the inclination angle of the grading rods. The spherical graphite larger than the gap between the primary grading rods 1 rolls toward the primary discharge port 5 and enters the primary discharge trough 8. The spherical graphite smaller than the gap between the primary grading rods 1 falls directly downward. The spherical graphite larger than the gap between the secondary grading rods 2 rolls toward the secondary discharge port 6 and enters the secondary discharge trough 9. The spherical graphite smaller than the gap between the secondary grading rods 2 falls directly downward. The spherical graphite larger than the gap between the tertiary grading rods 3 rolls toward the tertiary discharge port 7 and enters the tertiary discharge trough 10. The spherical graphite smaller than the gap between the tertiary grading rods 3 falls directly downward, enters the return port 11, and is sent back to the processing workshop for reprocessing.

[0025] A return port 11 is fixedly connected to the bottom of the grading box 4, legs 12 are fixedly connected to the four corners of the bottom of the grading box 4, a grading port 13 is fixedly connected to the right side of the top of the grading box 4, a conveyor belt 14 is arranged outside the roller 16, a feed port 20 is fixedly connected to the right side of the top of the conveying bracket 19, a motor 18 is fixedly connected to the front end of the axle 15, and side plates 17 are symmetrically fixedly connected to the front and rear ends of the axle 15.

[0026] After the spherical graphite is produced, the workers put the produced spherical graphite into the feed port 20, the motor 18 is started, driving the wheel shaft 15 to rotate, prompting the conveyor belt 14 to operate, at this time the spherical graphite is transported and piled in the feed port 20, the card slot on the conveyor belt 14 drives an appropriate amount of spherical graphite to move to the grading port 13, and when it moves to the top of the grading port 13, the spherical graphite falls into the grading port 13;.

[0027] Working principle: After the spherical graphite is produced, the workers put the produced spherical graphite into the feed port 20, the motor 18 is started, driving the wheel shaft 15 to rotate, and prompting the conveyor belt 14 to operate. At this time, the spherical graphite is transported and piled in the feed port 20, and the card slot on the conveyor belt 14 drives an appropriate amount of spherical graphite to move to the grading port 13. When it moves to the top of the grading port 13, the spherical graphite falls into the grading port 13; according to the required specifications, the workers adjust the gaps between the first-level grading rod 1, the second-level grading rod 2, and the third-level grading rod 3 in the grading box 4. When the spherical graphite enters the grading box 4 through the grading port 13, due to the effect of gravity and the inclination angle of the grading rod, The spherical graphite begins to roll, and the spherical graphite larger than the gap between the primary grading rods 1 rolls toward the primary discharge port 5 and enters the primary discharge trough 8, and the spherical graphite smaller than the gap between the primary grading rods 1 falls directly downward, and the spherical graphite larger than the gap between the secondary grading rods 2 rolls toward the secondary discharge port 6 and enters the secondary discharge trough 9, and the spherical graphite smaller than the gap between the secondary grading rods 2 falls directly downward, and the spherical graphite larger than the gap between the tertiary grading rods 3 rolls toward the tertiary discharge port 7 and enters the tertiary discharge trough 10, and the spherical graphite smaller than the gap between the tertiary grading rods 3 falls directly downward, enters the return port 11, and is sent back to the processing workshop for reprocessing.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A grading device for producing spherical graphite, comprising a grading box (4) and a conveying support (19), characterized in that: The grading box (4) is provided with a primary discharge port (5) at the upper left side, a secondary discharge port (6) at the middle right side, and a tertiary discharge port (7) at the lower left side. The grading box (4) is fixedly connected with a primary discharge trough (8) at the upper left side, a secondary discharge trough (9) at the middle right side, and a tertiary discharge trough (10) at the lower left side. The grading box (4) is fixedly connected with a plurality of primary grading rods (1) at the upper left side of the inner side, a plurality of secondary grading rods (2) at the middle right side of the inner side, and a plurality of tertiary grading rods (3) at the lower left side of the inner side. The upper rear end of the conveying bracket (19) is fixedly connected with a side plate (17), and the middle outer side of the wheel axle (15) is fixedly connected with a roller (16).

2. The classifying device for spherical graphite production according to claim 1, characterized in that: The bottom end of the grading box (4) is fixedly connected with a material return port (11).

3. The classifying device for spherical graphite production according to claim 1, characterized in that: The four corners of the bottom end of the grading box (4) are fixedly connected with supporting feet (12).

4. The classifying device for spherical graphite production according to claim 1, characterized in that: A grading material opening (13) is fixedly connected to the right side of the top end of the grading box (4).

5. The classifying device for spherical graphite production according to claim 1, characterized in that: A conveyor belt (14) is arranged outside the roller (16).

6. The classifying device for spherical graphite production according to claim 1, characterized in that: A feed port (20) is fixedly connected to the right side of the top end of the conveying bracket (19).

7. The classifying device for spherical graphite production according to claim 1, characterized in that: A motor (18) is fixedly connected to the front end of the wheel axle (15).

8. The classifying device for spherical graphite production according to claim 1, characterized in that: The front and rear ends of the wheel axle (15) are symmetrically and fixedly connected to side plates (17).

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