Equipment for continuously breaking oil-water emulsion by high-speed centrifugal separation
A high-speed centrifugation and water emulsification technology, applied in the direction of immiscible liquid separation, etc., can solve the problems of lack of safety, increased cost, high voltage and frequency, etc., and achieve the effect of reducing cost, improving effect and prolonging the process
Inactive Publication Date: 2007-08-29
SHANGHAI UNIV
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Problems solved by technology
[0003] At present, demulsification methods at home and abroad: salting-out method, coagulation method, mixing method, acidification method and chemical reaction method, the above methods all need to consume a large amount of chemical reagents, and the organic phase after demulsification cannot be reused, which increases the cost
In addition, the electric field method mainly adopts the high-voltage electrostatic method for demulsification, and has achieved a high demulsification rate at high voltage (20kV) and high frequency (20kHz), but the voltage and frequency used are too high, which lacks safety and is difficult. Realize industrialization
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[0016] A preferred embodiment of the present invention is: referring to Fig. 1, this high-speed centrifuge continuously breaks the oil-water emulsion equipment comprising a centrifugal pump driven by a motor 6 through a transmission mechanism, having an inlet and outlet channel 2 and supported by a bearing 4 The drum 3, the said inlet and outlet channels 2 are respectively a section of straight pipe section supported on the two bearings 4 respectively, and are respectively connected to the two ends of the centrifugal drum 3 through two tapered pipe sections to form a Integral; the outer ends of the straight pipe sections of the liquid inlet and outlet channels 2 are respectively inserted into the delivery pipes 8 fixedly placed on the base for the liquid inlet and outlet, and the two dynamic sealing devices 7 are used to seal the liquid inlet and outlet channels respectively. Realize dynamic seal between the straight pipe section of 2 and the described inlet and outlet liquid c...
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The invention relates to a device for speedily whizzing continuous demulsification of oil- water emulsion. It contains a centrifugal cylinder which is activated by an electromotor and has access fluid passages and is supported by bearings, said each access fluid passage being a straight tube section and equipped with two said bearings, and separately linked to the two ends of said centrifugal cylinder by two conical pipe sections; the outer end of said straight tube section separately being inserted into the carrier pipe of access liquid which is equipped with the base, and said straight tube sections and carrier pipes being sealed separately and dynamically by two dynamical sealing device. Invented can continuously demulsify and deoil, no needing of chemical agent and no destruction of the organic phase of emulsion.
Description
technical field [0001] The invention relates to a device for breaking oil-water emulsion, in particular to a device for continuously breaking oil-water emulsion through high-speed centrifugal separation. Background technique [0002] Emulsions are mostly used as lubricants, coolants and preservatives in steel cold rolling production, machining and metal surface treatment. The emulsions are mainly composed of 2% to 10% mineral oil or vegetable oil, emulsifier and water. The waste emulsion contains a large amount of oil (petroleum), nitrite, COD and other pollutants. Improper treatment will cause serious environmental pollution. The key to the treatment of this type of waste is to break the emulsion and remove the oil. In the field of hydrometallurgy, the traditional liquid-liquid extraction technology is still mostly used for the separation and enrichment of leachate. Due to the limitation of extraction balance, to achieve a higher enrichment ratio, it is necessary to use cou...
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IPC IPC(8): B01D17/04
Inventor 朱萍周鸣王正达袁媛曾颖
Owner SHANGHAI UNIV