CN104907170A - Permanent magnet magnetic separation cylinder - Google Patents

Abstract

The invention discloses a permanent magnet magnetic selection cylinder, which comprises a permanent magnet magnetic system, a sieve cylinder, an intermediate partition, a shell, a feeding pipe, a sealing device, a transmission shaft, a motor and other components. It is characterized in that: the permanent magnet magnetic system is fixed inside the shell, the screen cylinder is located in the middle of the permanent magnet magnetic system, the motor drives the screen cylinder to rotate through the transmission shaft, and the middle partition divides the shell into a magnetic cavity and a non-magnetic cavity . It has the advantages of low energy consumption, easy replacement of screen and convenient operation and maintenance, and is suitable for sorting magnetic minerals.

Description

Permanent Magnetic Separator

technical field

The invention belongs to the field of mineral processing and specifically designs a magnetic mineral separation device.

Background technique

Magnetic separation is a common method for separating magnetic and non-magnetic substances. At present, the commonly used magnetic separators are mostly non-uniform magnetic field separation equipment, and the sorted magnetic substances are likely to be mixed with non-magnetic substances.

The magnetic agglomeration re-separator and magnetic separation column developed according to the principle of magnetic agglomeration are separated in an approximately uniform magnetic field environment. Its principle is to separate the agglomerated magnetic substances from the non-agglomerated non-magnetic substances by using backwash water for fluidized classification. In order to reduce inclusions, both devices design the magnetic system as discontinuous to achieve the effect of agglomeration-dispersion-agglomeration, and the non-magnetic substances can be separated by flushing water during dispersion. Although these two types of equipment can effectively reduce inclusions, fine-grained magnetic substances are easily lost under the action of backwash water, and the equipment consumes a lot of water.

The magnetic field screening machine is a magnetic separation equipment designed according to the principle of the magnetic field screening method for sorting in an approximately uniform magnetic field environment. The principle is to use a pair of symmetrically placed planar magnetic systems to form a uniform magnetic field, and the magnetic objects are magnetized in the magnetic field to form a chain, and the chain-shaped magnetic objects and loose non-magnetic objects are separated by sieving. This equipment effectively solves the problems of large water consumption of magnetic agglomeration re-separator and magnetic separation column and weak recovery ability of fine-grained magnetic substances. However, the magnetic system of this magnetic field screening machine is a permanent magnet system, the field strength is not easy to adjust, and the screen is easily blocked, and the screen is not easy to clean and replace during maintenance.

Contents of the invention

Aiming at the disadvantages of the prior art that the sieve hole of the magnetic field screening machine is easily blocked, and the screen mesh is not easy to clean and replace during maintenance, the present invention provides a permanent magnet magnetic separator with a large processing capacity, which is not easy to block the sieve hole, is easy to replace the screen mesh.

In order to achieve the above object, the technical solution adopted in the present invention is: a permanent magnet magnetic separation cylinder, including permanent magnet magnetic system, sieve cylinder, intermediate partition, shell, feeding pipe, sealing device, transmission shaft and motor and other components composition. It is characterized in that: the permanent magnet magnetic system is fixed inside the shell, the screen cylinder is located in the middle of the permanent magnet magnetic system, the motor drives the screen cylinder to rotate through the transmission shaft, and the middle partition divides the shell into a magnetic cavity and a non-magnetic cavity .

The sieve cylinder is a multi-faceted conical drum, the feed end of the sieve cylinder is equipped with a lifting plate, the discharge end is equipped with a deflector, and the outside of the sieve cylinder is provided with several trapezoidal screens.

The transmission shaft is connected to the screen cylinder through a flange, and the transmission shaft is fixed on the housing through a bearing seat.

The sealing device is concentric with the transmission shaft and installed outside the casing.

Compared with the prior art, 1) the present invention adopts a multi-faceted conical screen cylinder, which rotates continuously, and the screen surface is not easy to be blocked;

2) Modular screen surface design, easy to replace the screen surface.

Description of drawings

Fig. 1 is a schematic structural view of the present invention.

Detailed ways

As shown in Figure 1, a permanent magnet magnetic selection cylinder includes a permanent magnet magnetic system 1, a screen cylinder 2, an intermediate partition 3, a housing 4, a feeding pipe 5, a sealing device 6, a transmission shaft 7 and a motor 8, etc. components. It is characterized in that: the permanent magnet system 1 is fixed inside the housing 4, the screen cylinder 2 is located in the middle of the permanent magnet system 1, the motor 8 drives the screen cylinder 2 to rotate through the transmission shaft 7, and the middle partition 3 divides the housing into four parts. There are magnetic cavity and non-magnetic cavity.

The screen drum 2 is a multi-faceted conical drum. The feed end of the screen drum 2 is equipped with a lifting plate, and the discharge end is equipped with a deflector. The outside of the screen drum 2 is provided with a number of trapezoidal screens. The transmission shaft 7 is connected to the screen cylinder 2 through a flange, and the transmission shaft 7 is fixed on the housing through a bearing seat. The sealing device 6 is concentric with the transmission shaft 7 and installed outside the casing 4 .

The permanent magnet magnetic separation cylinder is a continuous operation, and the operation steps are as follows: When working, the motor drives the screen cylinder to rotate, and the material is fed into the lifting plate through the feeding pipe, and the material is evenly dispersed in the rotating screen cylinder. , the magnetic material is agglomerated in a chain shape, flows along the slurry to the magnetic material cavity, and finally enters the magnetic cavity, while the non-magnetic material enters the non-magnetic cavity through the sieve hole.

Claims (4)

1. Permanent magnet magnetic separation cylinder, including permanent magnet system (1), sieve cylinder (2), intermediate partition (3), housing (4), feeding pipe (5), sealing device (6), transmission Shaft (7) and parts such as motor (8) are formed. It is characterized in that: the permanent magnet system (1) is fixed inside the housing (4), the screen cylinder (2) is located in the middle of the permanent magnet system (1), and the motor (8) drives the screen cylinder through the transmission shaft (7) (2) Rotate, the middle partition (3) divides the casing (4) into a magnetic cavity and a non-magnetic cavity. 2. The permanent magnet magnetic separation cylinder according to claim 1, characterized in that: the sieve cylinder (2) is a multi-faceted conical drum, the feed end of the sieve cylinder (2) is equipped with a lifting plate, and the discharge end A deflector is installed, and several trapezoidal screens are arranged on the outside of the screen cylinder (2). 3. The permanent magnet magnetic separation cylinder according to claim 1, characterized in that: the transmission shaft (7) is connected to the screen cylinder (2) through a flange, and the transmission shaft (7) is fixed on the housing through a bearing seat . 4. The permanent magnet magnetic separation cylinder according to claim 1, characterized in that: the sealing device (6) is concentric with the transmission shaft (7) and installed outside the casing (4).