5results about How to "Efficient precipitation" patented technology

The utility model provides an efficient desulfurization wastewater clarification device which comprises a clarification tank main body, and an upper heat exchanger, a heat exchange tube and a lower heat exchanger are sequentially arranged in an inner cavity of the clarification tank main body from top to bottom; the bottom of the heat exchange pipe is connected with a pipeline bracket, and clarification tank filler is arranged at the top of the heat exchange pipe; wherein the other end of the pipeline bracket is connected with the bottom of a sedimentation tank in the clarification tank main body; a sludge outlet is formed in the bottom of the sedimentation tank; the device can automatically clean and operate, is high in automation degree, and can specifically and efficiently precipitate desulfurization wastewater compared with a traditional precipitation tank; strong brine is used as a heat exchange medium for heat exchange, so that the temperature of the strong brine is increased, heat needed by temperature rise of the rear-end evaporation section is reduced, and the energy-saving effect is achieved.

This invention belongs to the field of friction welding technology, and specifically relates to a device and method for targeted control of the microstructure of an inertial friction welded joint using electrical pulses. The device includes a six-degree-of-freedom parallel mechanism, a support unit, electrodes, a toroidal water-cooling unit, a toroidal magnetic unit, a frustum-shaped water-cooling unit, a frustum-shaped wall magnetic unit, and a fixture. The workpiece is placed on the support unit, the six-degree-of-freedom parallel mechanism limits the top of the workpiece, and the fixture clamps the welding toroidal surface. The toroidal magnetic unit and the toroidal water-cooling unit are disposed on the welding toroidal surface, and the frustum-shaped wall magnetic unit and the frustum-shaped water-cooling unit are disposed on the frustum wall. The electrodes provide pulsed current to the weld area. The toroidal magnetic unit and the frustum-shaped wall magnetic unit cooperate to guide the pulsed current to flow concentratedly through the weld area. The toroidal water-cooling unit and the frustum-shaped water-cooling unit cooperate to cool the base material area. This invention employs localized electrical pulse heat treatment, achieving the precipitation of strengthening phases in the weld area through the synergistic effect of Joule heating and electroplasticity, thus shortening the heat treatment cycle.

This invention discloses a method for separating vanadium and chromium in a vanadium-chromium solution, belonging to the field of wet separation of vanadium-chromium solutions. This method addresses the problem that existing technologies cannot achieve deep separation of vanadium and chromium. The method first adds a reducing agent to the vanadium-chromium solution, converting the highly soluble hexavalent chromate anion into a lower valence state, easily precipitated Cr. 3+ Cations, then add Mn 2+ The chromium removal agent efficiently precipitates trivalent chromium ions from vanadium-containing solutions, achieving deep separation of vanadium and chromium in the liquid phase. Compared with traditional chemical precipitation methods, the vanadium-chromium separation method of this invention has advantages such as high separation coefficient, simple and easy-to-use process, low equipment requirements, convenient operation, and suitability for industrial production.

This invention provides an integrated wastewater treatment device for enhancing flocculation, including a flocculation unit. The flocculation unit includes a drive shaft and an impeller assembly. The top end of the drive shaft is connected to a drive component, and the bottom end is mounted on the bottom of the flocculation tank via a bearing. The impeller assembly includes an outer impeller assembly, which is mounted on the drive shaft via a fixing ring. The outer impeller assembly includes a first outer blade group, a second outer blade group, and a third outer blade group, which are uniformly mounted on the fixing ring circumferentially along the drive shaft. The vertical cross-sections of the first, second, and third outer blades are all curved surfaces composed of two sine curves. Each of the first, second, and third outer blades has a cavity. Each of the first, second, and third outer blades has a second discharge port. The integrated wastewater treatment device provided by this invention effectively improves the flocculation effect of the entire space, creating conditions for efficient sedimentation.

The application discloses a kind of melt crystallization devices, comprising: kettle top is provided with a cover, cover central installation has a pipe body, kettle outer wall is provided with jacket, jacket is communicated with first water inlet pipe and first water outlet pipe, first water inlet pipe is communicated with cold water tank, first water inlet pipe side wall is communicated with branch pipe, branch pipe is communicated with hot water tank, pipe cover top is communicated with second water inlet pipe and second water outlet pipe, second water inlet pipe is communicated with hot water tank, kettle bottom is wound with heating wire, kettle inside additional central pipe body and outside jacket form double heat exchange passage body, in the process of original liquid crystallization, cold water is passed into jacket while ice block is placed in pipe body, increase heat exchange area, improve cooling rate, so that original liquid quickly reaches supersaturated state, promote crystal high-efficiency precipitation, in crystal melting stage, hot water is passed into jacket and pipe body, while starting heating wire auxiliary heating, double heating mode accelerates the heating rate, so that crystal quickly melts, improve efficiency, shorten production cycle.