146results about How to "Will not affect product quality" patented technology

The invention provides a method of preparing an iron and aluminum flocculant by treating red mud by using a coupling external field. Red mud is treated by means of a two-step method, so that industrial waste hydrochloric acid is used for acid leaching to prepare the iron and aluminum flocculant. The red mud is treated in an early stage by microwave carbon thermal reduction, so that excessive iron in the red mud can be effectively extracted from a carbon thermal reduction-magnetic separation process, and the enriched iron oxide can be also used as iron ore concentrate which enters an iron-making step for smelting pig iron. As the iron content in the residual red mud is reduced, the dissolution rate of aluminum is favorably increased; in the acid leaching process, ultrasonic external field treatment is adopted, so that the iron and aluminum dissolution rate and the reaction effect of the red mud are further enhanced.

The invention discloses a production technology for preparing calcium oxide and sulfur dioxide through utilizing desulfurized gypsum. The technology comprises the following steps: drying desulfurized gypsum at 230-300DEG C for 0.5-1.5h, wherein drying pretreatment is carried out at 40-50DEG C for 0.5-1h if the water content of carbon is above 5%; screening the desulfurized gypsum and the carbon for controlling the gypsum particle size below 40mum and the carbon particle size below 187.5mum; and mixing the screened carbon and the screened desulfurized gypsum according to a carbon-to-calcium sulfate mole ratio of 1:1-1.2:1 to obtain a mixed sample, putting the mixed sample in a high temperature reaction device, and reacting at 1000-1100DEG C under the protection of nitrogen or an inert gas under a gas flow velocity of 4-10m / s for 10-15min. The technology has the advantages of high reaction efficiency, fast reaction speed, less carbon consumption, high finally-obtained product quality, and no atmospheric pollution.

The invention relates to the field of aluminum substrate machining, and particularly relates to cutting forming equipment for a high-thermal-conductivity aluminum substrate. The cutting forming equipment comprises a workbench, a clamping assembly, a scale plate, a lifting assembly, a V-shaped cutting assembly, a polishing assembly and an industrial computer, wherein the clamping assembly is fixedly mounted at the top of the workbench, the lifting assembly is vertically and fixedly mounted on one side of the top of the workbench, the scale plate is horizontally mounted on the side, close to theclamping assembly, of the lifting assembly, the V-shaped cutting assembly is horizontally mounted on the lifting assembly, and the polishing assembly is fixedly mounted at the end, away from the scale plate, of the V-shaped cutting assembly; and the V-shaped cutting assembly comprises a cutting tool capable of cutting transversely, the tool point of the cutting tool is provided with a V-shaped opening, the length direction of the cutting tool is consistent with the working direction of the workbench. According to the cutting forming equipment for the aluminum substrate, the whole aluminum substrate is cut off from the transverse position, half-V-cutting is carried out on the two sides, the two sides of a finished product broken off are smooth and flat without burrs, only a few burrs existat the two ends, and deburring treatment is carried out without needing special labor, so that the workload is reduced, and the machining efficiency is improved.