Magnetic ring liquid purification equipment

Abstract

The invention belongs to the technical field of magnetic separation liquid purification, and in particular relates to magnetic ring liquid purification equipment. The equipment comprises a magnetic separator, a residue scraping mechanism, a residue discharge mechanism, a power transmission mechanism and a water inlet and drainage mechanism, wherein the magnetic separator belongs to a flat ring type, and the flat ring type magnetic separator is positioned in parallel on the upper part of a settling tank and fixed on a frame; and the flat ring type magnetic separator consists of two or more magnetic rings with the same diameter, and the upper magnetic ring is connected with the lower magnetic ring through a fixing ring. The equipment greatly improves the residue absorbing capability of a magnet, and has high impact load resistance.

Description

technical field [0001] The invention belongs to the technical field of using magnetic separation to purify liquid, in particular to a magnetic ring liquid purification equipment. Background technique [0002] A large amount of waste water is produced in the production process of metallurgy, mining, electric power, petroleum and chemical industry, which has caused serious pollution to the environment. In order to solve this problem, magnetic separation technology has become a well-known technology suitable for the treatment of magnetic wastewater (iron-containing suspended solids); and for non-magnetic wastewater, magnetic separation technology has also begun to be used in recent years. That is, first add magnetic powder and pharmaceuticals to make the magnetic powder and the pollutants in the wastewater flocculate into agglomerates, and then use magnetic separation equipment to adsorb and separate the flocculated impurities from the wastewater to realize the purification of ...

AI Technical Summary

Problems solved by technology

The magnetic rod separation and purification equipment has a high magnetic field strength and is suitable for the separation of ultra-fine magnetic impurities, but the slag unloading is more troublesome and difficult to meet the requirements of continuous treatment of large water volumes; the magnetic drum separation and purification equipment consists of a magnetic drum, a waste water tank, and a slag scraper. The wastewater flows through the outer surface of the magnetic drum, and the magnetic particles (or magnetic flocs) in the wastewater are adsorbed and separated by the magnetic drum; the magnetic ring separation and purification wastewater equipment is composed of multiple magnetic rings, and the permanent magnets used are rare earth permanent magnets. , the wastewater flows through the gap between the magnetic rings, the ferromagnetic particles in the wastewater are adsorbed by the magnetic rings, and the wastewater is purified

[0004] Such as Chinese patent ZL92214041.3 discloses a kind of "permanent magnetic separation treatment equipment for treating waste water in iron and steel plants", and ZL00222525.5 discloses a kind of "rare earth magnetic ring separation and purification equipment". Although these devices have high magnetic strength and large gradient, It has the advantages of long flow time between disks and high adsorption and separation effect, but it also has long process flow, large floor area, large one-time investment, poor operation stability, rather limited processing capacity, and is greatly affected by changes in water quality and quantity. , the management is relatively complicated, and there are many equipment failures; there are also permanent magnetic flocculators used to treat sewage. Chinese patent 200720184904.X discloses a permanent magnetic flocculator for sewage descaling. This magnetic descaling device greatly improves sewage purification. effect, but there are still unreasonable magnetic field layouts, weak magnetic field strength in the middle, and magnetic blind areas will still be generated at the side walls of the flocculator, which will affect the magnetization effect; patent ZL92108011. Composed of four magnetic rings, the permanent magnet block used is a rare earth permanent permanent magnet block, the waste water flows through the gap between the magnetic rings, the ferromagnetic particles in the waste water are absorbed by the magnetic ring, and the waste water is purified

However, this equipment has the same disadvantages as the magnetic rod type and drum type magnetic separation equipment: the permanent magnet block in the equipment is only partially submerged in the waste water, and the slag absorption capacity of all the permanent magnet blocks cannot be fully utilized, so the investment cost of the equipment, The area occupied is not optimal

On the other hand, the current known magnetic separation and purification wastewater devices all have the problem of insufficient impact load resistance, that is, when the slag content of wastewater fluctuates greatly, the concentration of suspended solids in the effluent may increase, making it difficult to ensure that the effluent water quality meets the requirements

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