An electric sorting machine with a new type of heating plate

Abstract

The utility model discloses a novel electric separator of heating plate, including the cabinet, the inside of cabinet includes drum cylinder, the upper portion of cabinet is installed with the feeding inlet, the inside installation of feeding inlet has rear arc plate and front arc plate, rear arc plate and front arc plate are symmetry installation, the rear end of rear arc plate is installed with ceramic plate, the inside installation of ceramic plate has heating coil, the rear portion of feeding inlet is installed with power module, and power module and heating coil are electric connection, and rear arc plate is metal material. The utility model discloses through being equipped with the front arc plate and rear arc plate of arc structure, based on heating coil combination inside's rotating plate, let the ore particle of entering the feeding inlet can with the rotating rate of rotating plate rapidly preheats in the inside, and the output direction of adjusting ore particle and dispersing the ore particle of gathering, more suitable bottom's drum cylinder work flow, has increased electric separator's work efficiency and ore separation quality.

Description

Technical Field

[0001] This utility model relates to the field of electrostatic separators, and in particular to an electrostatic separator with a novel heating plate. Background Technology

[0002] An electrostatic separator is a mineral processing device used in electric mineral separation. Electrostatic separation is a method of separating various minerals and materials in nature by utilizing the differences in their electrical properties. When minerals with different conductivity pass through an electric field, they acquire different charges due to electrostatic induction or the capture of charged ions, and exhibit different characteristics in the electric field. With the aid of gravity, they produce different trajectories. Then, with the help of receiving devices, the purpose of separating minerals with different conductivity is achieved.

[0003] Because the pre-screening process before the electrostatic separator, such as the spiral chute, requires ore particles to flow with water, the ore is usually heated before entering the electrostatic separator to change the physicochemical properties of the mineral surface, such as surface charge distribution and wettability. For some minerals with poor conductivity, heating can reduce their surface resistance and increase their conductivity, thus enabling them to be better separated from other minerals in the electric field. For example, after heating, the oxide film on the surface of some oxidized minerals may change, increasing their conductivity and facilitating electrostatic separation.

[0004] However, existing preheating equipment usually requires a long preheating time. For example, it uses resistance heating, which cannot quickly heat up different ores and cannot form a production line process with the overall equipment. In addition, it is usually the next level of equipment above the electrostatic separator, which requires additional space and site, resulting in poor practicality. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the defects of the prior art and provide a new type of electric separator with heating plate. It mainly solves the problem that the heating plate is usually located outside the electric separator in the prior art, and the heating plate equipment usually has low heating efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] This utility model relates to a novel electric separator for heating plates, comprising a cabinet, the inside of which includes a drum, and an inlet installed at the upper part of the cabinet. Inside the inlet, a rear arc-shaped plate and a front arc-shaped plate are installed, which are symmetrically installed front and rear, and openings are provided at the upper and lower parts between the rear arc-shaped plate and the front arc-shaped plate. The lower opening of the rear arc-shaped plate and the front arc-shaped plate is located on the upper front side of the drum, and the upper opening is located on the front side of the inlet. The front part of the inlet is inclined.

[0008] A ceramic plate is installed at the rear end of the rear arc plate, and a heating coil is installed inside the ceramic plate. A power module is installed at the rear of the feed port. The power module and the heating coil are electrically connected. The rear arc plate is made of metal. A rotating plate is installed between the rear arc plate and the front arc plate. A rotating shaft passes through the middle of the rotating plate and is externally connected to a drive motor. The rotating plate is used to rotate between the rear arc plate and the front arc plate.

[0009] Preferably, a baffle plate is installed on the top of the rear arc plate, the baffle plate being inclined and the inclined direction facing the front arc plate.

[0010] Preferably, the inner surfaces of the rear arc plate and the front arc plate are provided with a wear-resistant surface layer, and both the rear arc plate and the front arc plate are arc-shaped structures with the same center position.

[0011] Preferably, a heat exchange plate is installed between the rear arc plate and the heating coil, and the heat exchange plate is used to transfer heat to the left arc plate.

[0012] Preferably, the drive motor and the rotating plate are connected by a rotating shaft, the rotating plate rotates between the front arc plate and the rear arc plate, the centers of the front arc plate and the rear arc plate are located on the axial extension line of the rotating shaft, and the rotating plate rotates counterclockwise.

[0013] Preferably, both ends of the front arc plate and the rear arc plate are fixedly connected to the inner wall of the feed inlet, and the rotating plate has gaps between itself and the front arc plate and the rear arc plate respectively.

[0014] Preferably, the top and bottom of the rotating plate are provided with a covering layer, and the surface of the covering layer is provided with recessed strips, which are evenly spaced.

[0015] Preferably, the covering layer is made of polyurethane material, and the front and rear ends of the rotating plate are provided with tooth-shaped protrusions.

[0016] Preferably, a drive assembly is provided on the left side of the cabinet, the drive assembly includes a gearbox and a fixed motor, the drive assembly is used to transmit power to the drum; a hopper is installed at the bottom of the cabinet, and the front arc plate and the feed inlet are fixedly connected.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention utilizes a front arc-shaped plate and a rear arc-shaped plate with an arc structure. Based on a heating coil combined with an internal rotating plate, the ore particles entering the feed inlet can be rapidly preheated on the inside as the rotating plate rotates. It also adjusts the output direction of the ore particles and disperses agglomerated ore particles, making it more compatible with the bottom drum working process and increasing the working efficiency and ore sorting quality of the electrostatic separator. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a cross-sectional structural schematic diagram of the present invention;

[0022] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0023] Figure 4 This is a schematic diagram of the rotating plate structure of this utility model;

[0024] In the diagram: 1. Cabinet; 2. Drum; 3. Feed inlet; 4. Rear arc plate; 5. Front arc plate; 6. Toothed protrusion; 7. Opening; 8. Ceramic plate; 9. Heating coil; 10. Power module; 11. Rotating plate; 12. Rotating shaft; 13. Drive motor; 14. Baffle plate; 15. Wear-resistant surface layer; 16. Heat exchange plate; 17. Covering layer; 18. Recessed strip. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] In the attached diagram, all identical reference numerals refer to the same components.

[0027] Example 1

[0028] like Figure 1-3As shown, this utility model provides a novel electric separator for heating plates, including a cabinet 1. The cabinet 1 contains a drum 2. An inlet 3 is installed at the upper part of the cabinet 1. A rear arc-shaped plate 4 and a front arc-shaped plate 5 are installed inside the inlet 3. The rear arc-shaped plate 4 and the front arc-shaped plate 5 are symmetrically installed front and rear, and openings 7 are provided at both the upper and lower parts between the rear arc-shaped plate 4 and the front arc-shaped plate 5. The lower opening 7 of the rear arc-shaped plate 4 and the front arc-shaped plate 5 is located on the upper front side of the drum 2, and the upper opening 7 is located on the front side of the inlet 3. The front part is inclined; a ceramic plate 8 is installed at the rear end of the rear arc plate 4, and a heating coil 9 is installed inside the ceramic plate 8. A power module 10 is installed at the rear of the feed port 3. The power module 10 and the heating coil 9 are electrically connected. The rear arc plate 4 is made of metal. A rotating plate 11 is installed between the rear arc plate 4 and the front arc plate 5. A rotating shaft 12 passes through the middle of the rotating plate 11, and the rotating shaft 12 is externally connected to the drive motor 13. The rotating plate 11 is used to rotate between the rear arc plate 4 and the front arc plate 5.

[0029] like Figure 1-2 As shown, when the ore is fed into the conveyor belt from the feed inlet 3, it mainly enters the inner side through the openings 7 at the top of the rear arc plate 4 and the front arc plate 5, and is discharged from the bottom. In this process, the heating coil 9 is powered by the power module 10 to heat the heat exchange plate 16, which then transfers the heat to the rear arc plate 4. After entering, the ore is stirred by the rotation of the rotating plate 11, allowing the ore to slowly discharge from the inner wall of the left arc plate through the lower opening 7. This allows the surface moisture of the ore to be continuously evaporated by the higher heat of the left arc plate, preheating the ore to reach a suitable temperature before entering the electric field, which is beneficial for the subsequent sorting process. At the same time, the lower opening 7, in conjunction with the rotating plate 11, allows the output direction of the internal ore particles to match the rotation direction of the drum 2, and the internally stirred ore particles can also be dispersed to avoid agglomeration.

[0030] Furthermore, a baffle plate 14 is installed on the top of the rear arc plate 4. The baffle plate 14 is inclined and the inclined direction is towards the front arc plate 5. This structure allows the ore particles entering from the feed inlet 3 to pass through the top baffle plate 14 and the front arc plate 5 through the inclined structure at the top, so that the ore particles can smoothly enter the interior from the top opening 7.

[0031] Furthermore, the inner surfaces of the rear arc-shaped plate 4 and the front arc-shaped plate 5 are provided with a wear-resistant surface layer 15. Both the rear arc-shaped plate 4 and the front arc-shaped plate 5 are arc-shaped structures with the same center position. The drive motor 13 and the rotating plate 11 are connected by a rotating shaft 12. The rotating plate 11 rotates between the front arc-shaped plate 5 and the rear arc-shaped plate 4, and the centers of the front arc-shaped plate 5 and the rear arc-shaped plate 4 are located on the axial extension line of the rotating shaft 12. This allows the ore particles to enter the inner side of the front arc-shaped plate 5 and the rear arc-shaped plate 4 and mainly fall on the rotating plate 11. Figure 2 As shown, the reverse rotation of the rotating plate 11 can cause the ore particles to pass over the rear arc plate 4 at an arc angle, thereby preheating the ore particles.

[0032] Furthermore, a heat exchange plate 16 is installed between the rear arc plate 4 and the heating coil 9. The heat exchange plate 16 is used to transfer heat to the left arc plate. Both ends of the front arc plate 5 and the rear arc plate 4 are fixedly connected to the inner wall of the feed port 3. The rotating plate 11 leaves gaps between the front arc plate 5 and the rear arc plate 4 respectively. This makes the rear arc plate 4 the main heating component, and the temperature it generates can be controlled between 100 and 200 degrees. Since the interior is open at both ends, the internal temperature is higher than the external temperature. The continuous rotation of the rotating plate 11 will also increase the transfer of internal space temperature. Ultimately, the ore particles entering the interior will have a longer contact time with the rear arc plate 4 to achieve rapid preheating, that is, to a temperature of 60 to 80 degrees, so as to evaporate most of the moisture and fall to the front of the drum 2.

[0033] The left side of the cabinet 1 is equipped with a drive assembly, which includes a gearbox and a fixed motor. The drive assembly is used to transmit power to the drum 2. A hopper is installed at the bottom of the cabinet 1.

[0034] Working principle: Before use, the rear arc plate 4 needs to be preheated to make the inner wall of the left arc plate at a high temperature. After the mineral particles enter the feed port 3, they will enter the surface of the rotating plate 11 from the upper opening 7. The rotating plate 11 will rotate continuously to make the mineral particles on the surface move downward from the middle of the left arc plate, so that the mineral particles can stay on the inner side for a long time.

[0035] Because the front arc plate 5 and the rear arc plate 4 are only separated by the upper opening 7 and the lower opening 7 to form a semi-sealed space, the internal heat will be greater than the external heat; the heating coils 9 are set at equal intervals and the heat is transferred to the left arc plate by the heat exchange plate 16; when the mineral particles enter, the internal space is kept at a high temperature due to the continuous rotation of the rotating plate 11, and the temperature of the mineral particles can rise rapidly.

[0036] The stirred mineral particles can not only be dispersed left and right, but also discharged from the bottom opening 7, and continuously achieve the sorting effect from the front of the drum 2 along with the rotation direction of the drum 2.

[0037] The wear-resistant surface layer 15 can be coated with DLC in a grid or stripe pattern, allowing mineral particles to move downwards along the left arc plate under gravity. Even if heavier mineral particles remain at the bottom of the left arc plate, the rotating plate 11 can still push them to the opening 7 after rotating once. If lighter mineral particles hit the front arc plate 5, they will also move downwards along the arc from the front arc plate 5, and accurately fall onto the upper part of the drum 2 with the mineral particles falling from the left side to form a screening effect.

[0038] Its structure is simple and can be installed at the feed inlet 3 without occupying a large space. The overall structure can be used in conjunction with an electrostatic separator to form a production line process. At the same time, its structure can also improve the sorting efficiency and sorting quality of the drum 2 by adjusting the falling angle of the mineral particles. It not only reduces the surface resistance of minerals with poor conductivity by heating energy, thereby increasing their conductivity and better separating them from other minerals in the electric field, but also ensures that the process of mineral particles entering the feed inlet 3 does not need to be interrupted.

[0039] Example 2

[0040] The difference from Example 1 is that, as Figure 4 As shown, the top and bottom of the rotating plate 11 are provided with a covering layer 17, and the surface of the covering layer 17 is provided with recessed strips 18, which are evenly spaced.

[0041] The covering layer 17 is made of polyurethane material. The front and rear ends of the rotating plate 11 are provided with toothed protrusions 6, which are adjacent to the front arc plate 5 or the rear arc plate 4.

[0042] Specifically, in order to further disperse most of the mineral particles, a comb-like toothed protrusion 6 structure is provided. When combined with the recessed strip 18, the minerals entering the feed port 3 can fall along the recessed strip 18 to the inner wall of the rear arc plate 4, and then the toothed protrusion 6 disperses the agglomerated mineral particles. Since the toothed protrusion 6 fills the gap between the rotating plate 11 and the front arc plate 5 or the rear arc plate 4, it will not cause the mineral particles to be unable to be pushed by the rotating plate 11.

[0043] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A novel electrostatic separator for heating plates, comprising a cabinet (1), wherein the cabinet (1) contains a drum (2), and an inlet (3) is installed on the upper part of the cabinet (1), characterized in that, The feed inlet (3) is equipped with a rear arc plate (4) and a front arc plate (5). The rear arc plate (4) and the front arc plate (5) are installed symmetrically front and back, and there are openings (7) at the top and bottom of the rear arc plate (4) and the front arc plate (5). The lower opening (7) of the rear arc plate (4) and the front arc plate (5) is located on the front side of the upper part of the drum (2), and the upper opening (7) is located on the front side of the feed inlet (3). The front part of the feed inlet (3) is inclined. A ceramic plate (8) is installed at the rear end of the rear arc plate (4), and a heating coil (9) is installed inside the ceramic plate (8). A power module (10) is installed at the rear of the feed port (3). The power module (10) and the heating coil (9) are electrically connected. The rear arc plate (4) is made of metal. A rotating plate (11) is installed between the rear arc plate (4) and the front arc plate (5). A rotating shaft (12) passes through the middle of the rotating plate (11), and the rotating shaft (12) is externally connected to the drive motor (13). The rotating plate (11) is used to rotate between the rear arc plate (4) and the front arc plate (5).

2. The electric separator for a novel heating plate according to claim 1, characterized in that, A baffle plate (14) is installed on the top of the rear arc plate (4). The baffle plate (14) is inclined and the inclined direction is towards the front arc plate (5).

3. The novel electric separator for heating plates according to claim 1 or 2, characterized in that, The inner surfaces of the rear arc plate (4) and the front arc plate (5) are provided with a wear-resistant surface layer (15). The rear arc plate (4) and the front arc plate (5) are both arc-shaped structures and have the same center position.

4. The electric selector according to claim 3, characterized in that, A heat exchange plate (16) is installed between the rear arc plate (4) and the heating coil (9), and the heat exchange plate (16) is used to transfer heat to the left arc plate.

5. The electric selector according to claim 4, characterized in that, The drive motor (13) and the rotating plate (11) are connected by a rotating shaft (12). The rotating plate (11) rotates between the front arc plate (5) and the rear arc plate (4). The centers of the front arc plate (5) and the rear arc plate (4) are located on the axial extension line of the rotating shaft (12). The rotating plate (11) rotates counterclockwise.

6. The electric selector according to claim 5, wherein, Both ends of the front arc plate (5) and the rear arc plate (4) are fixedly connected to the inner wall of the feed port (3), and the rotating plate (11) leaves gaps between the front arc plate (5) and the rear arc plate (4).

7. The electric selector according to claim 6, characterized in that, The top and bottom of the rotating plate (11) are provided with a covering layer (17), and the surface of the covering layer (17) is provided with recessed strips (18), which are evenly spaced.

8. The electric selector according to claim 7, characterized in that, The covering layer (17) is made of polyurethane material, and the front and rear ends of the rotating plate (11) are provided with tooth-shaped protrusions (6).

9. The electric selector according to claim 8, characterized in that, The cabinet (1) is provided with a drive assembly on the left side. The drive assembly includes a gearbox and a fixed motor. The drive assembly is used to transmit power to the drum (2). The bottom of the cabinet (1) is equipped with a hopper. The front arc plate (5) and the feed inlet (3) are fixedly connected.

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