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Magnetic ring liquid purification equipment

A liquid purification and magnetic ring technology, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problem of insufficient shock load resistance, poor operation stability, and concentration of suspended solids in effluent Increase and other problems, to achieve the effect of strong impact load resistance, strong impact load resistance, and stable effluent quality

Active Publication Date: 2012-11-28
SCIMEE TECH & SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] The specific equipment is: magnetic ring liquid purification equipment, including magnetic separator, slag scraping mechanism, slag discharge mechanism, power transmission mechanism, water inlet and drainage mechanism. The upper part of the groove is fixed on the frame; the flat ring magnetic separator is composed of two or more magnetic rings with the same diameter, the upper magnetic ring and the lower magnetic ring are connected by a fixed ring, and each magnetic ring is composed of Composed of magnetic adsorption area and non-magnetic slag discharge area, the non-magnetic slag discharge area is arranged in a straight line along the vertical direction of the magnetic ring, and the gap between adjacent magnetic rings forms the flow channel;

[0054] The slag scraping mechanism is placed in the waste water flow channel between the magnetic rings radially; Type, the two edges are in elastic contact with the surface of the upper and lower magnetic rings, the bottom is f...

Embodiment 2

[0064] The specific equipment is: magnetic ring liquid purification equipment, including magnetic separator, slag scraping mechanism, slag discharge mechanism, power transmission mechanism, water inlet and drainage mechanism, flocculator, coagulator, magnetic separator belongs to flat ring type, flat ring magnetic The separator is placed in parallel on the upper part of the settling tank and fixed on the frame; the flat ring magnetic separator is composed of two or more magnetic rings with the same diameter, and the upper magnetic ring and the lower magnetic ring are connected by a fixed ring. Each magnetic ring is composed of a magnetic adsorption area and a non-magnetic slag discharge area. The non-magnetic slag discharge area is arranged in a straight line along the vertical direction of the magnetic ring, and the gap between adjacent magnetic rings forms a flow channel;

[0065] The flocculator is placed in the settling tank and fixed on the frame through a sealed fixing pl...

Embodiment 3

[0075] Concrete equipment: similar to the equipment in Example 1.

[0076] The process of equipment separation and purification of the present invention is realized in this way:

[0077] The oil containing some ferromagnetic substances enters the settling tank through the inlet pipe; in the settling tank, some ferromagnetic substances naturally precipitate due to their own gravity, and the precipitated ferromagnetic substances enter the slag collecting box through the gap on the fixing plate; a small amount of iron The magnetic substance enters the flat-ring magnetic separator from the water inlet (7-7) of the flat-ring magnetic separator along with the oil containing ferromagnetic substances through the waste water delivery pipeline, and this part of the ferromagnetic substance is adsorbed by the magnetic adsorption area on the magnetic ring On the surface of the magnetic ring, after the oil is purified, it is discharged from the side of the magnetic separator through the out...

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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 ...

Claims

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Application Information

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IPC IPC(8): C02F9/12
Inventor 倪明亮陈立黄沛洋
Owner SCIMEE TECH & SCI CO LTD
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