(1) Magnetic filter The magnetic filter is a magnet with a vacuum filter. The structure of the external filter magnetic filter is shown in Figure 1. The magnetic filter is mainly composed of a filter cartridge, a magnetic pole and a feeding tank. The working process is: the magnetic slurry is fed into the tank from above the outside of the cylinder. The filter cake is removed by the scraper. The structure of the 20 m 2 permanent magnet internal filter manufactured by Shenyang Mining Machinery Factory is shown in Figure 2. Its working principle is the same as that of the permanent magnet outer filter. The equipment was widely used in large iron ore dressing plants after the successful development of Anshan Iron and Steel in the 1970s. Its working index is close to the permanent magnet external filter vacuum filter, and the feeding mode is the same as that of the cylindrical inner filter vacuum filter (slot discharge). [next] The structure of the magnetic separation filter is shown in Figure 3. When the magnetic separator filter is working, the slurry to be selected is uniformly fed into the machine sorting box from the feeding tank and fully suspended. The magnetic ore particles in the slurry are attracted by the magnetic pole and attached to the filter cloth outside the drum. The non-magnetic gangue is not attracted by the magnetic pole, and continues to flow forward with the liquid flow, and the tailings port is discharged outside the machine. The magnetic concentrate adsorbed on the surface of the filter cloth rotates toward the filter cake discharge direction along with the drum, and magnetically rolls over with the magnetic poles in the drum, thereby further removing mechanical non-magnetic substances, thereby improving the magnet essence. Mineral grade. When the concentrate is transferred to the filtration zone, the magnetic field is removed, and the sorting process is terminated to start dehydration. By means of vacuum suction, the moisture of the filter cake gradually decreases as the cylinder rotates. When the filter cake enters the unloading area, it falls into the concentrate funnel under the action of the blowing air pressure and the scraper. After the unloading of the cake, the filter cloth is transferred into the regeneration zone along with the cylinder, and is cleaned by the blowing and flushing, and the gas permeability is restored, and the next working cycle is started. Disposable Ice Cream Spoon,Ice Cream Spoon,Plastic Ice Cream Stick,Colorful Ice Cream Spoon Ningbo Haishu Longer Houseware Co., Ltd. , https://www.longerbest.com
The equipment is suitable for processing magnetic concentrates with a content of +0.147 mm and +0.074 mm, respectively, of 5.0% and 30%. Our Panzhihua Iron and Steel and other large mineral processing plants are using a magnetic filter, the better. The feed size is 0.4-0.1 mm, and the filter cake moisture is 10-11%. The production capacity of a 12 m 2 magnetic filter is about 50 to 60% ton / hr.
The MTFF-type magnetic filter made in Sweden is mounted on the surface of the feed tank and filter cartridge with a special sealing device to reduce wear and extend the life of the filter cloth up to 2500 hours. There is also an automatic safety device that automatically stops working when overloaded to prevent damage to the machine. The upper feeding material eliminates the phenomenon of slurry sedimentation and makes full use of the effect of gravity sedimentation, so that the coarse particles are first adsorbed, and the fine particles are located on the surface of the filter cake, preventing the filter cloth from being clogged, forming an ideal cluster-like adsorption state, and water permeability. Ok, increase the filter production capacity.
(2) Magnetic separation filter
The magnetic separation filter has the dual function of sorting and dehydration. When it is used to sort magnetite, the production effect of the permanent magnetic cylinder magnetic separator can be obtained. The resulting concentrate has little water, but is slightly higher than the filter cake moisture of a typical vacuum filter.
Since the output of the machine is limited by the selection index, that is, when the rotation speed is constant, the maximum output is limited, so the moisture of the filter cake can only be reduced to a certain extent.