Mineral separation table with ferromagnetic impurity separation function

Abstract

The invention discloses a beneficiation shaking table with a ferromagnetic impurity separation function, which comprises a separation shaking table, a magnetic part and a driving part, and is characterized in that the separation shaking table is provided with a separation surface for separating ores; the driving piece moves along a fixed annular path; the magnetic parts are arranged along the path of the driving part and fixed to the driving part, the surface of the driving part is provided with a magnetic area and a demagnetizing area along the path, and the magnetic area partially covers the sorting surface. According to the mineral separation deposit, mineral aggregate is subjected to vibration screening, the driving piece drives the magnetic piece to move, when the magnetic piece is close to the ore belt, iron and other ferromagnetic impurities in the mineral aggregate are adsorbed, and therefore separation of the ferromagnetic impurities is achieved. In addition, the magnetic part is made of a soft magnetic material, when the magnetic part passes through the demagnetizer, the magnetism of the magnetic part disappears, the attracted ferromagnetic impurities lose attraction force and fall off due to gravity, and therefore the ferromagnetic impurities attracted by the magnetic part are separated.

Description

Technical Field

[0001] The present application relates to the technical field of mining machinery and equipment, and in particular to a mineral processing shaking table with a ferromagnetic impurity separation function. Background Art

[0002] During the operation of the belt ore dressing shaking table, the ore materials are placed on the bed surface. With the reciprocating motion of the bed surface, the materials are separated and separated according to their specific gravity and particle size under the combined action of gravity, water flow impact force and the reciprocating force of the bed surface. The slurry and flushing water can move horizontally along the bed surface, and the ore particles of different densities and particle sizes spread out in a fan shape on the bed surface. The tailings and middlings are discharged at the overlapped seams of the bed surface, and the heavy minerals are pushed to the concentrate end for discharge. The minerals of different specific gravities enter the trough and are discharged from the bottom orifice.

[0003] However, it is not easy to remove iron from the ore pulp with the existing shaking tables, and the presence of iron seriously affects the efficiency of mineral processing, so that the ore materials in the flotation contain a large amount of iron. Therefore, a shaking table for removing iron is needed for mineral processing.

[0004] Application Contents

[0005] The purpose of the present application is to overcome the above technical deficiencies and provide a mineral processing shaking table with ferromagnetic impurity separation function, which is used to solve the problem of needing to remove iron from the ore pulp in the prior art.

[0006] In order to achieve the above-mentioned technical objectives, the technical solution of the present application is as follows: a mineral processing shaking table with a ferromagnetic impurity sorting function, comprising a sorting shaking table, a magnetic part and a driving part, wherein: the sorting shaking table has a sorting surface for sorting ore; the driving part moves along a fixed annular path; a plurality of the magnetic parts are arranged along the driving part path and fixed to the driving part, and the driving part surface has a magnetic area and a demagnetization area along the path, and the magnetic area partially covers the sorting surface.

[0007] Preferably, the driving member includes a driving belt, a first driving wheel, and a second driving wheel. Both ends of the driving belt are respectively connected to the first driving wheel and the second driving wheel. The first driving wheel or the second driving wheel rotates to drive the driving belt to operate.

[0008] Preferably, the driving member further includes a driving unit, and a driving end of the driving unit is fixedly connected to the first driving wheel to drive the first driving wheel to rotate.

[0009] Preferably, the mineral processing shaking table with ferromagnetic impurity separation function further includes a fixed vertical plate, the fixed vertical plate is rotatably connected to the first driving wheel and the second driving wheel, and the fixed end of the driving unit is fixedly connected to the fixed vertical plate.

[0010] Preferably, a plurality of the magnetic members are embedded in the driving belt, and the length of the magnetic members is smaller than the width of the driving belt, and the magnetic members have soft magnetic properties.

[0011] Preferably, the mineral processing shaking table with the function of separating ferromagnetic impurities also includes a demagnetizer, which is located at the boundary between the magnetic zone and the demagnetization zone and in front of the magnetic zone moving along the driving belt. The demagnetizer is close to the driving belt, and when the magnetic part passes through the demagnetizer, the demagnetizer is used to remove the magnetism of the magnetic part.

[0012] Preferably, the mineral processing shaking table with the function of separating ferromagnetic impurities also includes a magnetizer, which is located at the boundary between the magnetic zone and the demagnetization zone and behind the magnetic zone moving along the driving belt. The magnetizer is close to the driving belt, and when the magnetic part passes through the magnetizer, the magnetizer is used to increase the magnetism of the magnetic part.

[0013] Preferably, the mineral processing shaking table with the ferromagnetic impurity separation function further includes a collecting box, and the collecting box is arranged below the driving belt and in front of the demagnetizer along the moving direction of the driving belt.

[0014] Preferably, the mineral processing shaking table with the ferromagnetic impurity separation function further includes a weight sensor, and the weight sensor is arranged below the fixed vertical plate and abuts against the fixed vertical plate.

[0015] Compared with the prior art, the beneficial effects of the present application include: the ore sorting bed vibrates and screens the ore, the driving part drives the magnetic part to move, and when the magnetic part is close to the ore belt, the iron and other ferromagnetic impurities in the ore are adsorbed, thereby achieving the separation of ferromagnetic impurities. In addition, the magnetic part is made of soft magnetic material, and when the magnetic part passes through the demagnetizer, the magnetism of the magnetic part disappears, and the adsorbed ferromagnetic impurities lose their suction and fall due to gravity, thereby separating the ferromagnetic impurities adsorbed by the magnetic part. When the magnetic part passes through the magnetizer, the magnetic part regains its magnetism and can continue to adsorb the ferromagnetic impurities in the ore belt. The device has a simple structure and the separation method consumes little energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of a mineral processing shaking table with a ferromagnetic impurity separation function provided by the present application;

[0017] Figure 2 It is a cross-sectional view of a driving belt and a magnetic component of a mineral processing shaking table with a ferromagnetic impurity separation function provided by the present application;

[0018] Figure numerals: 1-sorting shaker, 2-magnetic part, 3-driving part, 4-fixed vertical plate, 5-demagnetizer, 6-magnetizer, 7-collecting box, 8-weight sensor, 3a-driving belt, 3b-first driving wheel, 3c-second driving wheel. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the embodiments and drawings. Obviously, the described embodiments are only part of the embodiments, not all. Based on the embodiments in the present application, the following embodiments and their technical features can be combined with each other without conflict.

[0020] See also Figure 1 and Figure 2 The present embodiment provides a mineral processing shaking table with a ferromagnetic impurity separation function, including a separation shaking table 1, a magnetic component 2 and a driving component 3. The separation shaking table 1 is used to separate ore, the magnetic component 2 is used to screen out iron from the ore on the separation shaking table 1, and the driving component 3 is used to drive the magnetic component 2 to move.

[0021] The separation shaking table 1 has a separation surface for separation of ores. The separation shaking table 1 can be an existing one. The separation shaking table can make the ore particles move in different directions according to their density and particle size, and spread out in a fan shape along the diagonal from the feed trough, and discharge them along the edge of the bed in sequence. The discharge line is very long, and it can accurately produce a variety of products of different qualities, such as concentrate, sub-concentrate, medium concentrate and tailings. The separation shaking table is used as a gravity separation equipment and has been widely used in the separation of minerals such as gold sand, mainly for gold or coal separation. The ore particles on the shaking table surface are acted upon by the following three mutually perpendicular forces: the gravity of the ore particles in the medium; the fluid dynamics of the lateral water flow and the slurry flow; and the power of the differential reciprocating motion of the bed surface.

[0022] The driving member 3 moves along a fixed annular path. Specifically, the driving member 3 includes a driving belt 3a, a first driving wheel 3b, and a second driving wheel 3c. The two ends of the driving belt 3a are respectively connected to the first driving wheel 3b and the second driving wheel 3c. The first driving wheel 3b or the second driving wheel 3c rotates to drive the driving belt 3a to operate. Further, the driving member 3 also includes a driving unit. The driving end of the driving unit is fixedly connected to the first driving wheel 3b to drive the first driving wheel 3b to rotate. The driving unit can be a motor. The operating speed of the driving unit can be controlled according to the impurities adhered to the surface of the driving belt 3a and the content of ferromagnetic impurities in the ore. In most cases, the driving unit does not need to operate at a very fast speed and can even move intermittently, thereby reducing power usage.

[0023] A plurality of magnetic members 2 are arranged along the path of the driving member 3 and fixed to the driving member 3. The surface of the driving member 3 has a magnetic area and a demagnetizing area along the path, and the magnetic area partially covers the sorting surface. Therefore, when the driving member 3 passes through the sorting surface, the iron on the sorting shaking table 1 will be sucked up by the driving member 3, thereby removing the impurities such as iron in the ore that can be magnetically sucked up. The magnetic member 2 can be directly fixed on the surface of the driving belt 3a, or fixed in the driving belt 3a. Specifically, in this embodiment, a plurality of magnetic members 2 are embedded in the driving belt 3a and the length of the magnetic member 2 is less than the width of the driving belt 3a. Therefore, the driving belt 3a and the magnetic member 2 can be integrally injection molded. The magnetic member 2 has soft magnetism and can be made of relatively common iron-silicon alloy silicon steel sheets, and can be easily demagnetized and magnetized. Preferably, the mineral processing shaking table with the function of separating ferromagnetic impurities also includes a demagnetizer 5, which is located at the boundary between the magnetic zone and the demagnetization zone, and is located in front of the magnetic zone moving along the drive belt 3a. The demagnetizer 5 is close to the drive belt 3a. When the magnetic part 2 passes through the demagnetizer 5, the demagnetizer 5 is used to remove the magnetism of the magnetic part 2. The demagnetizer 5 usually adopts an electromagnet with an open iron core and is passed through an alternating current of 50 Hz. During demagnetization, the demagnetized object is first brought close to the demagnetizer 5 to achieve saturation of magnetism, and then gradually leaves, so that the hysteresis loop gradually shrinks until the residual magnetism is eliminated. The demagnetizer 5 can also be made by passing a damped oscillating current into the coil of the electromagnet. When using this demagnetizer 5, the demagnetized object does not need to leave gradually. The demagnetizer 5 can adopt the existing technology. Further preferably, the ore dressing shaking table with the function of separating ferromagnetic impurities also includes a magnetizer 6, which is located at the boundary between the magnetic zone and the demagnetization zone, and is located behind the movement of the magnetic zone along the drive belt 3a. The magnetizer 6 is close to the drive belt 3a. When the magnetic part 2 passes through the magnetizer 6, the magnetizer 6 is used to increase the magnetism of the magnetic part 2. The magnetizer 6 is made of a material with strong magnetism, such as a neodymium iron boron magnet, etc. When the magnetic part 2 is close to the magnetizer 6, its magnetism will be enhanced, and it is easier to absorb iron and other debris in the ore belt. The magnetizer 6 is composed of an extremely strong electromagnet and iron blocks of various shapes, which are used to form a closed magnetic circuit with the magnetized body, and the magnetization process is completed in a short time by adding an excitation current. The magnetizer first charges the capacitor with a DC high voltage, and then discharges it through a coil with extremely low resistance. The peak value of the discharge pulse current can reach tens of thousands of amperes, and this current pulse generates a strong magnetic field in the coil. The magnetic field permanently magnetizes the hard magnetic material placed in the coil.

[0024] Preferably, the mineral processing shaking table with ferromagnetic impurity sorting function also includes a fixed vertical plate 4, which is rotatably connected to the first drive wheel 3b and the second drive wheel 3c, and the fixed end of the drive unit is fixedly connected to the fixed vertical plate 4. The fixed vertical plate 4 is used to support and fix the first drive wheel 3b and the second drive wheel 3c. Since the angle of the sorting bed sometimes needs to be adjusted, it is also necessary to adjust the distance from the drive belt 3a to the sorting bed according to demand. At this time, the height of the drive belt 3a can be changed by raising the bottom of the fixed vertical plate 4. When the heights of the two fixed vertical plates 4 are different, the angle of the drive belt 3a is changed to adapt to the adjustment of the sorting bed.

[0025] Preferably, the mineral processing shaking table with the function of sorting ferromagnetic impurities also includes a collecting box 7, which is arranged below the driving belt 3a and in front of the demagnetizer 5 along the moving direction of the driving belt 3a. After the magnetic part 2 is demagnetized, it no longer absorbs impurities such as iron and falls into the collecting box 7 due to gravity.

[0026] Preferably, the mineral processing shaking table with the function of separating ferromagnetic impurities also includes a weight sensor 8, which is arranged below the fixed vertical plate 4 and abuts against the fixed vertical plate 4. When the weight of the fixed vertical plate 4 and the components on the fixed vertical plate 4 reaches a certain value, that is, the iron and other impurities adsorbed on the entire driving belt 3a reach a certain weight, the demagnetizer 5 is operated, and when the weight of the fixed vertical plate 4 and the components on the fixed vertical plate 4 is less than the value, the demagnetizer 5 does not work, which can effectively reduce the use of electricity. If the magnetizer 6 is electronic, the magnetizer 6 can also be controlled by similar control logic, that is, the magnetizer 6 works when the demagnetizer 5 works, and the magnetizer 6 stops working after the demagnetizer 5 has worked for a period of time, that is, it is ensured that all demagnetized magnetic parts 2 can be magnetized.

[0027] In summary, the present application provides a mineral processing shaking table with the function of separating ferromagnetic impurities. The separation bed vibrates and screens the ore. The driving member 3 drives the magnetic member 2 to move. When the magnetic member 2 is close to the ore belt, the ferromagnetic impurities such as iron in the ore are adsorbed, thereby realizing the separation of ferromagnetic impurities. In addition, the magnetic member 2 is made of soft magnetic material. When the magnetic member 2 passes through the demagnetizer 5, the magnetism of the magnetic member 2 disappears, and the adsorbed ferromagnetic impurities lose their suction and fall due to gravity, thereby separating the ferromagnetic impurities adsorbed by the magnetic member 2. When the magnetic member 2 passes through the magnetizer 6, the magnetic member 2 regains its magnetism and can continue to adsorb the ferromagnetic impurities in the ore belt. The device has a simple structure, and the separation method consumes little energy, which is very beneficial to actual production.

[0028] In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, and a specific direction structure and operation, and therefore, cannot be understood as a limitation of the present invention. In addition, "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A mineral processing shaking table with ferromagnetic impurity separation function, characterized in that: It includes a sorting shaker, a magnetic part and a driving part, wherein: The separation shaking table has a separation surface for separating ores; The driving member moves along a fixed annular path; A plurality of magnetic members are arranged along the path of the driving member and fixed to the driving member. The surface of the driving member has a magnetic area and a demagnetizing area along the path, and the magnetic area partially covers the sorting surface.

2. The ore dressing shaking table with ferromagnetic impurity separation function according to claim 1 is characterized in that: The driving member includes a driving belt, a first driving wheel, and a second driving wheel. Both ends of the driving belt are connected to the first driving wheel and the second driving wheel respectively. The first driving wheel or the second driving wheel rotates to drive the driving belt to operate.

3. The ore dressing shaking table with ferromagnetic impurity separation function according to claim 2 is characterized in that: The driving member further includes a driving unit, and a driving end of the driving unit is fixedly connected to the first driving wheel to drive the first driving wheel to rotate.

4. The ore dressing shaking table with ferromagnetic impurity separation function according to claim 3 is characterized in that: The mineral processing shaking table with ferromagnetic impurity separation function also includes a fixed vertical plate, which is rotatably connected to the first driving wheel and the second driving wheel, and the fixed end of the driving unit is fixedly connected to the fixed vertical plate.

5. The ore dressing shaking table with ferromagnetic impurity separation function according to claim 2 is characterized in that: A plurality of magnetic components are embedded in the driving belt, and the length of the magnetic components is smaller than the width of the driving belt. The magnetic components have soft magnetic properties.

6. The ore dressing shaking table with ferromagnetic impurity separation function according to claim 5 is characterized in that: The mineral processing shaking table with the function of separating ferromagnetic impurities also includes a demagnetizer, which is located at the boundary between the magnetic area and the demagnetization area and in front of the magnetic area moving along the driving belt. The demagnetizer is close to the driving belt. When the magnetic part passes through the demagnetizer, the demagnetizer is used to remove the magnetism of the magnetic part.

7. The ore dressing shaking table with ferromagnetic impurity separation function according to claim 5 is characterized in that: The mineral processing shaking table with the function of separating ferromagnetic impurities also includes a magnetizer, which is located at the boundary between the magnetic zone and the demagnetization zone and behind the magnetic zone moving along the driving belt. The magnetizer is close to the driving belt. When the magnetic part passes through the magnetizer, the magnetizer is used to increase the magnetism of the magnetic part.

8. The ore dressing shaking table with ferromagnetic impurity separation function according to claim 6 is characterized in that: The ore dressing shaking table with the ferromagnetic impurity separation function further comprises a collecting box, which is arranged below the driving belt and in front of the demagnetizer along the moving direction of the driving belt.

9. The ore dressing shaking table with ferromagnetic impurity separation function according to claim 4, characterized in that: The mineral processing shaking table with the ferromagnetic impurity separation function further comprises a weight sensor, which is arranged below the fixed vertical plate and abuts against the fixed vertical plate.

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