Polishing magnetorheological fluid recovery device based on capillary action

Abstract

The invention discloses a recovery device for polishing magnetorheological fluid based on capillary action, and belongs to the field of magnetic waste liquid recovery treatment. The recovery device comprises an electric lifting rod, an upper bracket, a recovery device, a support frame and an outer bracket; the electric lifting rod comprises a motor end and a lifting end, the motor end is fixedly connected to the middle of the upper end of the upper support, the recycling device comprises an upper end cover, a water and gas filtering disc, a screening disc and a chassis which are arranged from top to bottom, the lifting end is fixedly connected with the upper end of the upper end cover and can drive the upper end cover to move up and down, and the chassis is installed on the support frame. A cylinder body is further installed on the periphery of the support frame. The upper end cover is provided with a plurality of air pipe holes used for allowing capillary tubes to be inserted. New substances are not brought in in the whole process through the device, the range of the magnetorheological fluid capable of being treated is wider, the separation speed is high, the recovery rate is high, and separated magnetic particles and abrasive particles can be directly used.

Description

technical field [0001] The invention relates to the field of recovery and treatment of magnetic waste liquid, in particular to a recovery device for polishing magnetorheological fluid based on capillary action. Background technique [0002] Magneto-rheological fluid (MRF) is a suspension formed by uniformly dispersing micron-sized magnetic particles in a base carrier liquid. The liquid is mainly composed of magnetic particles, base carrier liquid, surfactants and other functional additives. The magnetorheological fluid behaves like a Newtonian liquid without adding a magnetic field. Once a strong magnetic field is added, it can instantly change from a Newtonian liquid to a solid-like Bingham liquid. Controlling the strength of the magnetic field can achieve a controllable state of the magnetorheological fluid. And continuous change, widely used in mechanical engineering, automobile, aerospace and other fields. [0003] Add appropriate amount of abrasive grains (diamond, cer...

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Problems solved by technology

[0006] ①The reaction between the treatment agent and the additive in the magnetorheological fluid reduces the dispersion of the magnetic particles and agglomerates and precipitates. This method will add new substances, resulting in the need for reprocessing after the base carrier fluid is recovered. The recovery efficiency is low and the operation The method is cumbersome;

[0007] ② The ionization method makes the magnetic particles lose the bonding effect with the base carrier liquid, thereby causing them to precipitate. In this method, the magnetorheological fluid is first adjusted to weak acidity, so that the magnetic particles are easily oxidized, and when this method is ionized New substances will be produced, which will easily cause secondary damage to the environment. In addition, there are many uncontrollable factors in the chemical method process, and certain professional knowledge is required to operate

[0010] ①At present, physical methods are used to achieve recovery treatment, mainly high-speed centrifugation, high temperature and high pressure, and then filtration. This method is relatively strong, and it has high sealing and reliability for the device. After working for a long time, it will cause damage to the device to a certain extent , while reducing the recycling efficiency;

[0011] ②The devices or methods in the prior art can only separate the base carrier fluid and dispersed particulate matter in the polishing magnetorheological fluid, and the dispersed particles contain not only magnetic particles, but also abrasive particles and workpiece residues, and no invention has been found to reproduce them to separate

In addition to magnetic particles, the dispersed particles in the polishing magnetorheological fluid also have abrasive particles and workpiece residues. The above invention does not separate them, resulting in impure magnetic particles recovered and difficult to meet the reuse conditions

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