METHOD AND EQUIPMENT FOR TREATMENT OF A LIQUID FLOW TO BE CLEANED AND PASSED INTO A FLOTATION PLANT OR EQUIVALENT

摘要

PCT No. PCT/FI95/00180 Sec. 371 Date Nov. 27, 1996 Sec. 102(e) Date Nov. 27, 1996 PCT Filed Apr. 4, 1995 PCT Pub. No. WO95/26930 PCT Pub. Date Oct. 12, 1995A method for treating a liquid flow to be cleaned passing through a flow line into a flotation plant including passing a portion of the liquid flow to be cleaned from the flow line along a first branch line into a pump. The suction capacity of the pump is regulated to draw in a direct flow of gas so that the pump sucks the gas as a direct flow. The drawn-in direct flow of gas is then mixed with the liquid flow in the pump and passed along a discharge pipe of the pump into a mixing part wherein the discharge pipe ends in a pressure release. The remaining portion of the liquid flow to be cleaned from the flow line is then passed along a second branch line into the mixing part. A liquid flow is discharged from the pressure release, the liquid flow including gas bubbles containing dissolved gas. The remaining portion of the liquid flow to be cleaned is then mixed with the liquid flow discharged from the pressure release to obtain a resultant flow which is then passed along a mixing duct into the flow line and further into the flotation plant.