Patent ID: 6139736
Filing Date: 2000-10-31
Classification: B03C,Y02P

Abstract:
An apparatus for magnetically agglomerating and treating impurities in liquids which is characterized in that magnets (16, 16) are attached at a predetermined interval (L) on inside confronting faces of a U-shaped yoke (18) and further rotary plates (14a, 14b) are fixed to opposite outside faces of the yoke;the rotary plates (14a, 14b) are fixed to opposite ends of a rotary shaft (12) provided in a magnetically agglomerating and treating tank (10) which is in communication with a stock solution inlet pipe (24) and a treated liquid outlet pipe (26);the distance (L) between the confronting magnets (16, 16) is set at 300 mm to form a magnetic field of a magnetic flux density of not less than 3000 gausses for flowing a liquid containing impurities such as magnetic suspensions and non-magnetic suspensions through the magnetic field at a flow rate of not less than 0.01 m/sec and concurrently making the liquid into contact with the magnets (16, 16) for not more than 60 minutes, so as to release one of the paired electrons of the non-magnetic suspension in the liquid, thereby to produce unpaired electrons for magnetic agglomerating together with the magnetic suspensions;adhesive plates (20, 20) are provided on the inside faces of the confronting magnets for magnetic adsorption by the magnets (16, 16); andscrapers (28, 28) are provided for continuously scraping the magnetic agglomeration on the surfaces of the adhesive plates (20, 20), wherein the magnets (16, 16) having a magnetic force of not less than 12000 gausses are attached to increase the efficiency of removing the impurities.