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The rare earth extraction and separation process will produce high concentrations of ammonium chloride wastewater, which has not been found for a long time. The Inner Mongolia Dielectrophoresis Applied Technology Research Institute has applied the dielectrophoresis technology to the membrane separation field for the first time in the world, and realized the rare earth extraction to separate the zero discharge of industrial wastewater. This process line for the treatment of wastewater is a domestic initiative.
The so-called dielectrophoresis refers to a neutral particle located in a non-uniform electric field, and a translational motion due to the dielectric polarization. The new technology uses dielectrophoresis to drive the particles and promote the turbulence effect, so that the very fine solid particles and high concentration ions in the sewage always keep a certain distance from the membrane surface, which greatly reduces the chance of contact between the harmful substances and the membrane surface and avoids membrane surface contamination. , increase medium flux.
Dielectrophoresis membrane separation process includes solid-liquid separation process section, ion selective separation process section, material and energy recovery process section. In the solid-liquid separation process section, the kerosene emulsion in the ammonium chloride wastewater is permeated through a microfiltration membrane and is subjected to enrichment extraction and recycling under the effect of dielectrophoretic force. Ion selective separation process section, taking multiple dielectric electrophoresis nanofiltration process, concentrated ammonium chloride separation. In the material and energy recovery process section, the separated high-purity ammonium chloride solution is input into the cation exchange membrane electrolyzer. Chlorine ions move to the anode electrode to generate chlorine gas, and the cathode generates hydrogen gas. Chlorine is input into the solar reactor and reacts with water to produce hydrochloric acid. The solar energy also suppresses the formation of hypochlorous acid. Hydrogen and air are simultaneously input to the hydrogen-oxygen fuel cell to generate electricity.
According to the calculation, the processing cost per ton of waste water treated is RMB 40, the daily treatment capacity is 1600 tons, and the amount of wastewater per ton contains 100 grams of ammonium chloride. Hydrochloric acid and ammonia water generated after this process are treated as per ton The price of 700 yuan and 1,000 yuan, the net profit of up to 110,000 yuan.
Dielectrophoresis membrane module compared with the traditional membrane separation module, to improve the membrane stability flux more than 2 times, the separation efficiency increased by 3 times more energy-efficient 176 times, can be directly used for the separation of high concentration, multi-component, high viscosity liquid.
The structure of the core barrel is generally divided into single - acting double core tube and most of the fishing apparatus. The double tube section consists of an outer tube assembly and an inner tube assembly. The outer pipe assembly includes; The main structure and working principle of the cartridge stopper, cartridge chamber, stable joint outer pipe, diamond reamer and diamond bit are as follows:
(1) Spear structure is composed of spear head and recovery spring. When coring, the fishing device is lowered to the upper part of the inner tube assembly in the drill pipe, and the fishing hook grasps the fishing spear, lifts the fishing device up, picks up the recycling card barrel, and inwardly compressing the cartridge card, so that the inner tube assembly and the outer tube are separated, so that the inner tube assembly is lifted up.
(2) The clip structure is mainly composed of the clip frame, clip, spring and other components. Its function is that when the inner tube sits on the outer tube, the clip expands with the help of the elastic force of the expansion spring and sticks to the inner wall of the clip chamber, so that the drilling tool can achieve positioning.
(3) Buffer structure by spring, locking mother, split pin composition. Protecting the inner tube when pulling the core.
(4) Single action structure is realized by two pairs of thrust bearings.
(5) Adjust the length of the inner pipe assembly and the outer pipe assembly of the structure, and fine-tune the lower shaft and the locking mother to achieve the gap required by the end of the spring seat and the step inside the drill bit.
(6) The fishing structure, also known as the fishing device, is mainly composed of fishing hook, hammer and safety rope. The fishing hook is used to hold the spearhead while fishing the inner pipe, and the weight is used to speed up the fishing device's descent to save fishing time. The safety rope is a thin rope. When the inner pipe is stuck for some reason and cannot be lifted, the safety rope can be forcefully lifted and then the drill can be lifted.
Other Parts,Spearhead Base,Compression Spin,Core Lifter
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