CN108654835A - Hyperpure iron extract magnetic separator - Google Patents

Abstract

The invention discloses an ultra-pure iron powder magnetic separator. It is a horizontal roller installed on a frame, an umbrella-shaped fixing frame that fits with the inner wall of the roller is installed on the fixed shaft in the roller, and a layer of magnetic pole direction is installed on the arc-shaped inner wall of the umbrella-shaped fixing frame. With the same combination of magnetic blocks, a semicircular casing is installed on the shock absorber at the upper end of the frame to the periphery of the lower half of the drum, and an arc-shaped sieve plate is installed between the casing and the drum. There is a feed inlet on the casing, a magnetic field isolating feed inlet is installed at the lower end of the feed inlet, a tailings discharge outlet is installed at the rear and lower part of the casing, and the upper part between the drum and the feed inlet and the other side of the drum are installed. The flushing water pipes are respectively installed at the corresponding positions on the side, the vibration motor is installed on the frame, a concentrate discharge deflector is installed on the back of the drum, and a row of concentrate discharge deflectors is installed near the drum above the concentrate discharge deflector. Mine discharge flushing pipe. It has the advantages of high mineral processing efficiency, low cost and no pollution.

Description

Ultra-pure iron fine powder magnetic separator

technical field

The invention relates to a magnetic separator, in particular to an ultra-pure iron fine powder magnetic separator suitable for magnetite, vanadium-titanium magnetite and roasted magnetite.

Background technique

Ultra-pure iron fine powder refers to iron fine powder with high iron content and low gangue content. The indicators for producing ultra-pure iron fine powder are iron grade greater than 71.5%, SiO2 less than 0.6%, and Fe3O4 greater than 99%. Therefore, it is often called ultra-pure iron concentrate, high-purity iron concentrate, and high-quality iron concentrate. It is not only a deep-processing product of mineral processing, but also a new type of functional material with great development potential. At present, the production of ultra-pure iron powder is mainly based on reverse flotation technology. Due to the use of chemical agents in the production process of reverse flotation technology, not only the production cost is high, the output is small, but also the environment is polluted. Our patent number is: 201520365270.2 "a vibrating magnetic field screening machine". It is a permanent magnetic strip installed on both sides of the shell, an exciter is installed on the upper part of the screen frame and a feeding cylinder is installed. A distributor is installed at the bottom of the cylinder, and a screw discharge device is installed at the bottom of the concentrate bin. During operation, the ore slurry falls evenly on the sieve plate through the separator tube and the distributor, and the magnetized particles form a chain-like magnetic agglomeration along the direction of the magnetic force line in a magnetic field that is as uniform as possible, and roll and slide from the sieve to the concentrate bin, and then discharge through the spiral The device discharges, and the particles with weak magnetic properties pass through the sieve holes smoothly and are discharged from under the sieve, and the particles exposed on the sieve holes break away from the sieve under the action of excitation and enter the medium ore bin. Because this technology can only extract more than 60% iron fine powder, the recovery rate of more than 71.5% ultra-pure iron fine powder cannot meet the requirements of large-scale production. At present, there is an urgent need for a low-cost, non-polluting ultra-pure iron fine powder magnetic separator.

Contents of the invention

The purpose of the present invention is to provide a low production cost, non-polluting ultra-pure iron fine powder magnetic separator.

The technical solution of the present invention is accomplished in the following manner. A horizontal drum is installed on a frame, and an umbrella-shaped fixing frame matching with the clearance of the inner wall of the drum is installed on the fixed shaft in the drum. A layer of magnetic block combinations with the same magnetic pole direction is installed on the arc-shaped inner wall of the fixed frame. The umbrella-shaped fixed frame is fixed on the fixed shaft in the drum at 120° downward, and a geared motor is installed on an outer end frame of the drum. , an umbrella-shaped fixed frame angle adjustment rod is installed on the fixed shaft protruding from the other end of the drum, and a semicircular casing is installed on the shock absorber at the upper end of the frame to the periphery of the lower half of the drum with hanging lugs. A curved sieve plate is installed between the casing and the drum, and a feed inlet is installed on the casing near the front of the drum, and a magnetic field isolating feed inlet is installed at the lower end of the feed inlet, and a A tailings discharge port, a row of flushing water pipes are installed at the upper part between the drum and the feed port and at the corresponding position on the other side of the drum, and one or two vibrating motors are installed in the middle of the frame near the feed port , A concentrate discharge deflector is installed on the back of the drum at the corresponding place of the umbrella-shaped fixed frame, and a row of concentrate discharge flushing pipes is installed near the drum above the concentrate discharge deflector. The curved sieve plate has at least two layers. The diameter of the sieve hole is 1-4 millimeters, and the distance between three adjacent holes is 2-6 millimeters.

The invention has the advantages of simple structure, high beneficiation efficiency, low cost and no pollution.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Figure 2 is a schematic top view of the present invention.

Detailed ways

Describe embodiment in detail in conjunction with accompanying drawing, it is that a horizontal drum 10 is installed on a frame 1, on the fixed shaft 6 in the drum, an umbrella-shaped fixture 8 that cooperates with the clearance of the inner wall of the drum is installed, and in the umbrella-shaped A layer of magnetic block combination 7 with the same magnetic pole direction is installed on the arc-shaped inner wall of the fixed frame. The umbrella-shaped fixed frame is fixed on the fixed shaft in the drum at 120° downward, and a speed reducer is installed on an outer end frame of the drum. The motor 11 is equipped with an umbrella-shaped fixed frame angle adjustment rod 17 on the fixed shaft protruding from the other end of the drum, and a semicircular bracket is installed on the shock absorber at the upper end of the frame to the lower half of the drum with the lug 4. The casing 14 has an arc-shaped sieve plate 16 installed between the casing and the drum, a feed inlet 12 is provided on the casing near the front of the drum, and a magnetic field isolation feed inlet 15 is provided at the lower end of the feed inlet , a tailings discharge port 2 is installed at the rear and lower part of the casing, a row of flushing water pipes 5 are respectively installed at the upper part between the drum and the feed port and at the corresponding position on the other side of the drum, and a row of flushing water pipes 5 is installed on the frame near the feed port. One or two vibrating motors 13 are installed on the side at the middle, and a concentrate unloading deflector 3 is installed on the back of the drum corresponding to the umbrella-shaped fixed frame. Row concentrate discharge flushing pipe 9. The curved sieve plate has at least two layers. The diameter of the sieve holes is 1-4 mm, and the distance between adjacent holes is 2-6 mm.

When working, mix 60% iron concentrate powder into a slurry with 30% mineral water, feed the slurry evenly from the feed port, and the slurry enters under the sieve plate through the magnetic field isolation feed port, and the vibration motor drives the semicircle The shaped casing and the sieve plate vibrate on an elliptical track. Under the action of the magnetic force of the magnetic block, the iron fine powder in the slurry is sucked upward, and the magnetic agglomeration of the sucked iron fine powder is broken up when it passes through the sieve hole, and is washed by washing. The water pipe washes from both sides of the drum at the same time, the non-magnetic material is discharged downward through the screen hole under the impact of clean water, the tailings are discharged through the discharge port, the concentrate is adsorbed on the drum and rotated out of the magnetic separation area, and then the drum is discharged by the discharge flushing pipe. The iron powder on the top is washed to the discharge deflector and flows out, and the selected ultra-pure iron powder can reach a grade of more than 71.5%. The ultra-pure iron fine powder magnetic separator is also suitable for separating iron fine powder or ultra-pure iron fine powder from ore.

Claims (3)

1. The ultra-pure iron fine powder magnetic separator is characterized in that: it is equipped with a horizontal drum on a frame, and an umbrella-shaped fixing frame that fits with the gap of the inner wall of the drum is installed on the fixed shaft in the drum. A layer of magnetic block combination with the same magnetic pole direction is installed on the arc-shaped inner wall of the umbrella-shaped fixing frame. The umbrella-shaped fixing frame is fixed on the fixed shaft in the drum at a downward angle of 120°. A deceleration motor, an umbrella-shaped fixed frame angle adjustment rod is installed on the fixed shaft protruding from the other end of the drum, and a semicircular machine is installed on the shock absorber at the upper end of the frame to the periphery of the lower half of the drum. Shell, a curved sieve plate is installed between the shell and the drum, a feed inlet is arranged on the shell near the front of the drum, a magnetic field isolating feed inlet is installed at the lower end of the feed inlet, behind the casing A tailings discharge port is installed at the bottom, a row of flushing water pipes are respectively installed at the upper part between the drum and the feed port and at the corresponding position on the other side of the drum, and one or two flushing pipes are installed in the middle of the frame near the feed port. A vibrating motor, a concentrate discharge deflector is installed on the back of the drum corresponding to the umbrella-shaped fixed frame, and a row of concentrate discharge flushing pipes is installed above the concentrate discharge deflector and close to the drum. 2. The ultra-pure iron fine powder magnetic separator according to claim 1, characterized in that: the arc-shaped sieve plate has at least two layers. 3. The ultra-pure iron fine powder magnetic separator according to claim 1, characterized in that: the diameter of the sieve holes is 1-4 mm, and the distance between three adjacent holes is 2-6 mm.