CN220361320U - Strong magnetic separator suitable for high-purity material of little examination grade - Google Patents

Abstract

The utility model discloses a strong magnetic separator suitable for small-scale high-purity materials, which comprises a sorting cavity pipeline, wherein the bottom of the sorting cavity pipeline is supported by a bottom bracket, the sorting cavity pipeline is a column type pipeline, and a filter bag is arranged at the lower part of the sorting cavity pipeline and is used for filtering and collecting ore pulp after sorting links are completed; the outer wall of the middle part of the sorting cavity pipeline is provided with an annular electromagnetic-permanent magnetic field generating device, the inside of the middle part of the sorting cavity pipeline is provided with a metal screen, and paramagnetic iron balls are placed on the metal screen. According to the utility model, the paramagnetic screen area formed by the high-purity paramagnetic metal spheres and the metal gate net is arranged in the separation cavity pipeline, so that when materials flow through the separation cavity, the magnetic separation substances are effectively intercepted and separated, and the liquid environment in the guide pipe is combined to form a composite force field formed by magnetic force, friction force, buoyancy and the like, so that the effective separation of the weak magnetic separation substances is realized, and the separation efficiency of the weak magnetic separation substances reaches the range of the strong magnetic separator.

Description

A strong magnetic separator suitable for small-scale high-purity materials

Technical field

The utility model relates to a mineral magnetic separation equipment preparation technology. In particular, it relates to a strong magnetic separator suitable for small-scale high-purity materials and used to separate and enrich magnetic and non-magnetic substances from target materials.

Background technique

In the field of mineral processing engineering, magnetic separation is an efficient separation method for magnetic minerals and non-magnetic minerals. Therefore, in the actual processing and production process, there are a large number of magnetic separators prepared using the principle of magnetic separation, such as wet drums. Magnetic separator, permanent magnet roller magnetic separator, magnetic separator tube and other small and medium-sized magnetic separation equipment. Magnetic separators can be divided into strong magnetic separators and weak magnetic separators according to their magnetic field strength and separation properties. Only strong magnetic separators can achieve effective separation of weak magnetic minerals. However, among small and medium-sized magnetic separation equipment, the equipment The limitations of power and magnetic field strength that permanent magnets can carry make it difficult to prepare strong magnetic separators in small and medium-sized equipment, making it difficult for small-scale laboratory magnetic separators such as magnetic separators to achieve weak magnetic separation of minerals. and separation of non-magnetic minerals. In terms of the permanent magnet roller magnetic separator that occupies a large area, the particle size of magnetic separation materials needs to be maintained at relatively large particles. For some parts, the degree of embedding is high, and monomer dissociation cannot be achieved with large particles. The sorting performance is poor for materials. Regarding high-gradient magnetic separators with relatively high magnetic field strengths, since the sorting chamber is inside a high-gradient magnetic field and has a complex structure, it is difficult to completely clean the interior during actual use, and it is easy to bring in materials remaining from previous use. , so it is difficult to select high-purity materials. Therefore, there is currently no small-scale high-purity material strong magnetic separator that can take into account the weak magnetic separation of minerals, small footprint and low power, and is suitable for high-purity material selection.

Utility model content

The purpose of the utility model is to solve at least one of the above-mentioned problems existing in the prior art and to realize magnetic separation of high-purity materials at a small scale.

In order to achieve the above purpose, the present utility model provides a strong magnetic separator suitable for small-scale high-purity materials, including a separation chamber pipe. The bottom of the separation chamber pipe is supported by a bottom bracket. The separation chamber pipe is a column type. Pipe, a filter bag is set at the bottom of the pipe of the sorting chamber, which is used to filter and collect the slurry after the sorting process is completed;

An annular electromagnetic-permanent magnetic field generating device is installed on the outer wall of the middle part of the selection chamber pipe. There is a metal screen inside the middle part of the selection chamber pipe, and paramagnetic iron balls are placed on the metal screen.

The selection chamber pipeline is equipped with an adapter flange under the filter bag to connect to the circulating water pump, so that the liquid medium after filtration is circulated through the circulating water pump and pipeline.

The electromagnetic-permanent magnetic field generating device includes an upper and lower layer of electromagnets, and the middle layer is a layer of permanent magnets.

The bottom pipe of the selection chamber pipe is equipped with a male threaded pipe for connection with the female threaded pipe. The filter bag is located in the female threaded pipe; the bottom of the female threaded pipe is connected to an adapter flange.

The high-purity paramagnetic metal spheres and metal gates constitute a paramagnetic screen area. The size of the internal metal spheres can be adjusted. The range of the metal spheres is 1 to 10 mm, and the corresponding size range of the sorting particles is 500 to 40 mesh.

To sum up, this application contains at least one of the following beneficial effects:

1. The vertical pillar structure greatly reduces the footprint of the magnetic separator, allowing it to conduct experiments on small-scale materials on a regular laboratory-sized table.

2. The electromagnetic-permanent magnet composite magnetic pole is used to realize the adjustability of the strength of the magnetic separator, and through the magnetization of the electromagnetic device, the permanent magnet pole part has a longer service life.

3. By arranging a paramagnetic screen area composed of high-purity paramagnetic metal spheres and metal gates in the selection chamber pipeline, when the material flows through the selection chamber, the magnetic separation material can be effectively intercepted and separated, combined with the flow guide tube The liquid environment forms a composite force field composed of magnetism, friction, buoyancy, etc., thereby achieving effective separation of weak magnetic separation materials, making the separation efficiency reach the range of strong magnetic separators.

Description of the drawings

Figure 1 is a schematic diagram of the overall structure of the utility model.

Figure 2 is a schematic diagram of the partial structure of the selection cavity of the present utility model.

Figure 3 is a schematic diagram of the bottom part of the selection cavity of the present utility model.

Figure 4 is a schematic diagram of the selection principle in the selection cavity of the present utility model.

Explanation of reference signs: 1 power supply, 2 stepless knob rheostat, 3 electromagnetic-permanent magnetic field generating device, 4 paramagnetic iron ball, 5 filter bag, 6 selection chamber pipeline, 7 circulating water pump, 8 bottom bracket, 3-1 Electromagnet, 3-2 permanent magnet, 4-1 metal screen, 6-2 bottom of the selection cavity, 6-3 wire pipe outside the selection cavity, 6-4 wire pipe inside the selection cavity, 6-5 transfer method orchid.

Detailed ways

In the following, a small-scale magnetic separator for high-purity materials of the present invention and its preparation method will be described in detail with reference to the accompanying drawings and exemplary embodiments.

The embodiment of the present application discloses a magnetic separator, including a power supply 1, a stepless knob rheostat 2, an electromagnetic-permanent magnetic field generating device 3, a paramagnetic iron ball 4, a filter bag 5, a selection chamber pipe 6, a circulating water pump 7, and a bottom bracket 8. Refer to Figure 1 for its overall structure. The bottom of the selection chamber pipe 6 is supported by the bottom bracket 8. The selection chamber pipe 6 is a column-type pipe as a whole. A filter bag 5 is provided at the bottom of the selection chamber pipe 6 for selection. The slurry after the separation process is completed is filtered and collected. A platform is provided on the outer wall of the middle part of the separation chamber pipe 6 for placing the annular electromagnetic-permanent magnetic field generating device 3. A metal screen 4-1 is provided inside the middle part of the separation chamber pipe 6. , the size range of the metal screen 4-1 is 500 to 40 mesh, which is used to provide support for the paramagnetic iron ball 4. The selection chamber pipe 6 is provided with an adapter flange 6-5 under the filter bag 5 for connecting the circulation. The water pump 7 enables the liquid medium after filtration to be circulated through the circulating water pump and pipelines.

Referring to Figure 2, a support platform is provided on the outer wall of the middle part of the selection chamber pipe 6 to provide support for the electromagnetic-permanent magnetic field generating device 3. The electromagnetic-permanent magnetic field generating device 3 is composed of two layers of electromagnets 3-1 and one layer of permanent magnets sandwiched between the upper and lower layers. It is composed of a magnet 3-2, and a metal screen 4-1 is provided inside the support platform to support the paramagnetic iron ball 4 in the sorting chamber.

Referring to Figure 3, the bottom pipe of the selection chamber pipe 6 is provided with an external threaded pipe 6-3 for connecting with the internal threaded pipe 6-4. The filter bag 5 is located inside the internally threaded pipe 6-4 and outside. The connection part of the threaded pipe 6-3 and the female threaded pipe 6-4 can place the filter bag 5 through thread engagement, thereby realizing the function of quickly disassembling and assembling the filter bag and collecting materials.

Referring to Figure 3, the bottom of the female thread pipe 6-4 is connected to the adapter flange 6-5, which is convenient for connecting to the pipe of the circulating water pump. The bottom interface of the adapter flange 6-5 is a pagoda-shaped interface with good air tightness. , after controlling the water level height in the selection chamber, a stable control cycle of the liquid level height in the chamber can be achieved.

Referring to Figure 4, in the magnetic screen area formed by the paramagnetic iron balls 4 in the selection chamber pipe 6, after the electromagnetic-permanent magnetic field generating device 3 is turned on and the water level in the selection cavity pipe 6 is higher than the metal screen 4-1 When the magnetic separation material passes through the tortuous sieve channel formed by the paramagnetic iron balls 4, it will be affected by the magnetic attraction from the paramagnetic iron balls 4 and the external magnetic field, the buoyancy from water and the interaction with the paramagnetic iron balls 4 The friction force generated by the contact works together to make the magnetic separation material stay on the metal screen 4-1.

Referring to Figure 4, when the electromagnetic-permanent magnetic field generating device 3 is turned off, the magnetically separated materials will be washed away by the water flow and captured in the filter bag 5 area.

A method for manufacturing a magnetic separator for small-scale high-purity materials. The manufacturing method includes the following parts:

The bottom bracket 8 is a triangular vertical base that forms the base of the magnetic separator. The triangular vertical base supports the entire magnetic separator while leaving space for operation on the front;

Optionally, the bottom bracket 8 is a hollow column pipe and its diversion channel constitutes the material selection chamber pipe 6. The direction of the selection chamber pipe 6 is a vertical table. The material of the selection chamber pipe 6 can be transparent according to experimental requirements or material requirements. Choose between glass, clear Plexiglas and plastic materials.

Optionally, a platform for placing the electromagnetic-permanent magnetic field generating device 3 is left on the middle outer wall of the selection chamber pipe 6 .

Optionally, the electromagnetic-permanent magnetic field generating device 3 is composed of a middle permanent magnet 3-2 and an outer electromagnet 3-1, relying on an electromagnetic control device to realize the adjustment of the magnetic field intensity, a transformer power supply and a continuously variable speed switch composite circuit It constitutes an electromagnetic control device to facilitate the conversion of household 220V AC power into a safer and more suitable 12-24V DC power supply. It is combined with the stepless knob switch to realize the adjustment of magnetic field intensity and facilitates the control of magnetic field intensity.

Optionally, the electromagnetic-permanent magnetic field generating device 3 is combined with a built-in ammeter to display the actual power of the electromagnetic-permanent magnetic field generating device 3 in real time.

Optionally, the electromagnetic-permanent magnetic field generating device 3 has a selection chamber pipe 6 inside, and the selection chamber pipe 6 contains a paramagnetic screen composed of high-purity paramagnetic iron balls 4 and metal screens 4-1. This area can be magnetized by the electromagnetic generating device and transformed into a magnetic screen, so that the gaps formed by the accumulation of internal particles are densely filled with magnetic fields, which can effectively intercept and separate magnetically separated materials. Combined with the liquid environment in the diversion tube, it forms magnetic force and friction. A composite force field composed of force, buoyancy, etc., thereby achieving effective separation of weak magnetic materials.

pp material pipes and circulating water pump 7 constitute a liquid circulation device, and detachable pipes and built-in filter bags constitute a material collection device.

Referring to Figure 1, the circuit part belongs to the existing technology and will not be described in detail.

Example 1

A certain quartz sample is ground to 100-200 mesh for magnetic separation. The inner diameter of the magnetic separator's selection chamber is 50mm, the particle size of paramagnetic iron balls used is 2mm, and the magnetic field intensity is 14000Gs.

The detection of various impurity elements in the K1 quartz sample raw ore is shown in Table 1 below:

Table 1 Summary table of chemical composition analysis of raw ore (ppm)

The quartz concentrate after separation was tested and found that its Fe content was 24.6ppm and the iron removal rate could reach 95.15%.

Example 2

A certain quartz sample is ground to 100-200 mesh for magnetic separation. The inner diameter of the magnetic separator's selection chamber is 50mm, the particle size of paramagnetic iron balls used is 2mm, and the magnetic field intensity is 12000Gs.

The detection of various impurity elements in the raw ore of G1 quartz sample is shown in Table 2 below:

Table 2 Summary table of chemical composition analysis of raw ore (ppm)

The quartz concentrate after separation was tested and found that its Fe content was 37.41ppm and the iron removal rate could reach 89.37%.

Claims (4)

1. The strong magnetic separator suitable for the small-scale high-purity materials is characterized by comprising a sorting cavity pipeline (6), wherein the bottom of the sorting cavity pipeline (6) is supported by a bottom bracket (8), the sorting cavity pipeline (6) is a column type pipeline, and a filter bag (5) is arranged at the lower part of the sorting cavity pipeline (6) and is used for filtering and collecting ore pulp after sorting links are completed;

an annular electromagnetic-permanent magnetic field generating device (3) is arranged on the outer wall of the middle of the sorting cavity pipeline (6), a metal screen (4-1) is arranged in the middle of the sorting cavity pipeline (6), and paramagnetic iron balls (4) are placed on the metal screen (4-1).

2. The high-intensity magnetic separator suitable for small-scale high-purity materials according to claim 1, wherein the sorting cavity pipeline (6) is provided with an adapter flange (6-5) below the filter bag (5) and is used for being connected with a circulating water pump (7) so that the filtered liquid medium can be circulated through the circulating water pump and the pipeline.

3. The high-intensity magnetic separator suitable for small-scale high-purity materials according to claim 1, wherein the electromagnetic-permanent magnetic field generating device (3) comprises an upper electromagnet layer (3-1) and a lower electromagnet layer (3-2) with a middle interlayer layer of permanent magnets.

4. The high-intensity magnetic separator suitable for small-scale high-purity materials according to claim 1, wherein the bottom pipeline of the sorting chamber pipeline (6) is provided with an external thread pipeline (6-3) for connecting with the internal thread pipeline (6-4), and the filter bag (5) is arranged in the internal thread pipeline (6-4); the bottom of the internal thread pipeline (6-4) is connected with an adapter flange (6-5).