9results 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.

The invention relates to a method for recovering rhodium and iridium from precious metal refining mother liquor containing rhodium and iridium, which comprises three procedures of oxidation pretreatment, purification and impurity removal and deep precipitation, and in the oxidation pretreatment procedure, sodium chlorate is used for oxidizing the precious metal refining mother liquor, so that organic matters in the solution are removed; base metal ions in the solution are oxidized into high valence states which are easy to remove, so that conditions are created for purification and impurity removal; most of base metal ions in the solution are removed by utilizing the properties that benzoate of base metals such as nickel, copper, iron and cobalt is low in solubility and benzoic acid does not react with rhodium and iridium in the solution, and meanwhile, the loss of rhodium and iridium is avoided; and finally, efficient precipitation of rhodium and iridium in the solution is achieved through a precipitator, the content of impurities in the obtained rhodium and iridium precipitate is low, and after the precipitate is dissolved by aqua regia, a refining process can be linked to produce rhodium powder and iridium powder.

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 utility model relates to the technical field of crystallization equipment, and discloses a magnesium chloride cooling crystallization device which comprises a tank body and a partition plate, a copper pipe vertically penetrates through the interior of a cooling chamber, the lower portion of the copper pipe penetrates into a filtering chamber below the partition plate, fins are fixed to the outer ring of the copper pipe, and the upper portion of the copper pipe is communicated with a liquid inlet pipe penetrating out of the upper portion of the tank body. The side edge of the liquid inlet pipe is transversely connected with a backflow pipe communicated with the interior of the liquid inlet pipe, a conical filter screen is fixed to the lower position in the filter chamber, and the bottom of the filter chamber is connected with a liquid outlet pipe communicated with the interior of the filter chamber. According to the technical scheme of the utility model, a solution enters the copper pipe and is rapidly cooled under the action of the fins and cold water to separate out magnesium chloride crystals, then the solution enters the filter chamber and is filtered by the conical filter screen to separate the crystals and the solution, and the solution is pumped out from the liquid outlet pipe and flows back to the liquid inlet pipe and the copper pipe through the return pipe again; and crystals are discharged from the discharging pipe, and the magnesium chloride-containing solution can enter the copper pipe for multiple times to be circularly cooled and crystallized, so that additional treatment is avoided, and waste is reduced.

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.

The present application discloses a unified modeling platform for industrial apps, including a system built-in plug-in module and a system kernel. The system built-in plug-in module is used to provide plug-in services according to the user's plug-in configuration request; the system kernel includes a metamodel bootstrap module, a model data operation protocol module, a model data publishing module and a model data processing plug-in module; the metamodel bootstrap module is used to realize the self-description of the model; the model data operation protocol module is used to provide data addition, modification or deletion services, and is also used to provide standard rest interface services; the model data publishing module is used to publish the data operation as a message after completing the data operation; the model data processing plug-in module is used to provide plug-in registration, deregistration and operation performance monitoring services. This solution allows industrial app developers to easily carry out relational data modeling and object model modeling, and by building the relationship between these data, all the factory data can be integrated.

The invention discloses an oil-water separation device for sewage, and belongs to the technical field of sewage and oil stain separation, the oil-water separation device comprises a cooling precipitation tank and an oil-water separation assembly, and the cooling precipitation tank is communicated with the oil-water separation assembly through a connecting pipe; the cooling precipitation box is configured to reduce the temperature of the sewage for oil precipitation, and the stirring assembly is arranged on the cooling precipitation box and used for stirring in the cooling precipitation box. Through the synergistic effect of a cold water pipe of the condensation assembly and the low-temperature box, the temperature of sewage in the cooling precipitation box is reduced, oil is efficiently precipitated at a low temperature, meanwhile, the sewage is fully stirred through the stirring assembly, the precipitated oil is uniformly suspended in the sewage, oil drop aggregation is avoided, and the subsequent oil-water separation efficiency is greatly improved.