59results about How to "Troubleshooting Filtration" patented technology

The utility model discloses a decoloring device for calcium aspartate production, and relates to a decoloring device, the device comprises a main decoloring reactor and a secondary decoloring treatment unit, and the main decoloring reactor and the secondary decoloring treatment unit are connected in series for operation through a pipeline system. Wherein the main decolorizing reactor comprises a barrel structure, a feed port is formed in the top end of the barrel structure, a discharge port is formed in the bottom end, and the feed port and the discharge port form a closed loop through an external circulating pump; and the discharge hole is connected to the secondary decolorization treatment unit through a three-way valve in a shunting manner. A mechanical stirring assembly is coaxially arranged in the cylinder, a plurality of inclined adsorption units are uniformly distributed on the periphery of the mechanical stirring assembly in the circumferential direction, and each unit and a stirring shaft form an inclination angle and are spirally distributed in the circumferential direction. According to the decoloring device, a synergistic mechanism of an activated carbon modular carrier and a composite stirring system is constructed, so that the efficient mass transfer characteristic of mechanical stirring is reserved, solid-liquid contact is enhanced by utilizing the micro-disturbance effect of bubbles, meanwhile, direct contact abrasion of activated carbon and moving parts is avoided, and further, the service life of the decoloring device is prolonged. The device can obviously improve the adsorption utilization rate of unit activated carbon.

The utility model relates to working fluid filtering treatment technical field, and disclose advanced ceramic grinding processing working fluid filtration supply system, including the casing, still include: the baffle, the baffle fixedly connected in the casing, the casing front side is provided with the supply area, the casing right side is provided with the reflux area, the casing is provided with the filter mechanism, the filter mechanism surface is provided with the assembly mechanism, the filter mechanism includes: terminal filter, terminal filter fixedly connected in the casing, this advanced ceramic grinding processing working fluid filtration supply system, through setting up the supply area to the working fluid and makes the whole device to the working fluid supply of processing area and to the filtration of working fluid separate, namely, supply pump and reflux filter assembly independent work, both ensure the double -deck effective filtration to working fluid, and can ensure the flow and pressure of working fluid supply to processing area.

The invention discloses a method for preparing a tungsten compound from artificial tungsten ore, which comprises the following steps: reacting sulfuric acid with the artificial tungsten ore to leach tungsten, and controlling the reaction conditions that the pH is 0.2-4.0, the temperature is 25-100 DEG C, the reaction time is 30 minutes to 6 hours, and the liquid-solid ratio is 1: 1-10: 1. And obtaining a metatungstate leaching solution after the reaction is completed, so that efficient leaching of tungsten is realized. And further performing purification and impurity removal on the solution to obtain a pure metatungstate solution. The pure metatungstate solution can be used for preparing different pure tungsten compound products such as solid metatungstate, phosphotungstic acid, ammonium phosphotungstate, tungsten oxide, ammonium metatungstate, ammonium paratungstate and tungstic acid. According to the technology, efficient leaching of tungsten under the mild condition can be achieved, high acid and high alkali are not needed in the whole process, and energy consumption and emission are greatly reduced; the obtained leachate is easy to purify to obtain a pure metatungstic acid solution, and the pure metatungstic acid solution can be directly used as a platform intermediate to flexibly prepare various tungsten chemicals.