Magnetic separation sewage treatment device

Abstract

The invention discloses a magnetic separation sewage treatment device. The device comprises a cuboid-shaped shell and two rotating shafts which are arranged in the shell and realize left-right rotating support, wherein each rotating shaft is provided with the same number of rollers which are arranged at intervals; magnetic adsorption plates are fixed among the bottoms of the rollers; a magnetic conveying belt supports transmission connection through the rollers of the two rotating shafts; the inner side surface of the lower part of the magnetic conveying belt is tightly clung to the magnetic adsorption plates, and a certain gap is left; a speed reduction motor drives one of the rotating shafts or simultaneously drives the two rotating shafts to rotate; a water inlet is formed in the frontside of the shell; a funnel-shaped sludge hopper is arranged at the bottom of the part, located at one side of the water inlet, of the shell; a funnel-shaped magnetic powder hopper is arranged at thebottom of the part, located at the other side, of the shell; and an arc-shaped magnetic arc partition is arranged at the top of a sludge hopper. The device is small in size, can be made into a vehicle-mounted type or a container type device, and is small in occupied area and large in water treatment amount.

Description

technical field [0001] The invention relates to sewage treatment equipment, in particular to a magnetic separation sewage treatment device. Background technique [0002] There are three types of magnetic separation equipment in the traditional sense. The magnetic roller magnetic separation is evolved from the magnetic separator. The magnetic powder is attracted by the rotation of the magnetic roller, and the magnetic powder in the sewage is separated out for reuse, but the recycling rate of the magnetic powder is low. , The magnetic powder on the magnetic roller is scraped off by the slag scraping mechanism, which is easy to cause wear on the surface of the magnetic roller. After a long time of use, the magnetic force will decrease. At the same time, when the magnetic powder in the magnetic separation falls in large quantities, it will be doped with a large amount of solution. , directly entering the reaction pool will reduce the concentration of the reagent in the reaction ...

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Problems solved by technology

[0002] There are three types of magnetic separation equipment in the traditional sense. The magnetic roller magnetic separation is evolved from the magnetic separator. The magnetic powder is attracted by the rotation of the magnetic roller, and the magnetic powder in the sewage is separated out for reuse, but the recycling rate of the magnetic powder is low. , The magnetic powder on the magnetic roller is scraped off by the slag scraping mechanism, which is easy to cause wear on the surface of the magnetic roller. After a long time of use, the magnetic force will decrease. At the same time, when the magnetic powder in the magnetic separation falls in large quantities, it will be doped with a large amount of solution. , directly entering the reaction pool will reduce the concentration of the chemical in the reaction pool

[0003] The second type is disk-type magnetic separation. The main equipment is a magnetic separator and a magnetic powder recovery machine. The magnetic powder in the sewage is drawn and discharged into the recovery machine through the parallel arrangement of multiple disks. Compared with the first type, the recovery of magnetic powder However, due to the large number of disks, there is a great suction force between the disks. Scraping away by the scraping mechanism for a long time will cause wear on the surface of the disks. In addition, the number of disks is too large, and the cost performance is not high.

[0004] The last one is high-gradient magnetic separation equipment, which uses high-saturation magnetic density stainless steel wool as the medium, and the pollutants are trapped on the electromagnetic steel wool medium. After the magnetic circuit is cut off, the magnetic force disappears, but the washing water of this structure It is difficult to penetrate through the thick magnetic media box, the washing and unloading effect is poor, and more and more magnetic substances remain on the magnetic media box and even cause the magnetic media box to be blocked

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