44results about How to "Meet general requirements" patented technology

The invention provides an environment-friendly high-temperature-resistant gas oil synthetic-based drilling fluid and a preparation method and an application thereof. The environment-friendly high-temperature-resistant gas oil synthetic-based drilling fluid comprises the following ingredients, by weight, 80-90 parts of gas oil, 2-3 parts of organic soil DRGEL, 3-4 parts of a main emulsifier DREM-1, 2-5 parts of an auxiliary emulsifier DRCO-1, 2-5 parts of a filtrate reducer DF01, 10-20 parts of a CaCl2 aqueous solution with the concentration of 20wt%, 2-4 parts of calcium oxide and barite. According to the drilling fluid, routine requirements of the drilling fluid can be met, and requirements on high temperature resistance and environmental protection of the drilling fluid in deep and ultra-deep wells in environmentally sensitive areas on land and on the sea are met.

The invention discloses ice production equipment arranged in a refrigerator. The ice production equipment comprises an ice production module, a forming module, a guide part, a first driving component, a second driving component and a third driving component, wherein the ice production module is arranged in freezing space of the refrigerator; the ice production module includes a tray, an ejecting component arranged in the tray, and a water supply part; the forming module is arranged in the freezing space of the refrigerator, is positioned below the ice production module, and includes an upper forming part and a lower forming part; the guide part is arranged below the tray, one end communicates with an ice outlet of the tray, and the other end communicates with the lower forming part of the forming module; the guide part includes a first part and a second part connected with each other; the first part is connected with the ice outlet of the tray, and the two have an included angle alpha of not bigger than 130 degrees and not smaller than 110 degrees; the first part and the second part have an included angle beta of not bigger than 145 degrees and not smaller than 110 degrees; the first driving component is arranged in the tray, and is connected with the ejecting component; the second driving component is arranged in the freezing space of the refrigerator, and is connected with the upper forming part; and the third driving component is connected with the lower forming part.

The invention discloses the method for preparation of fluorescence strontium carbonate, comprising the following steps: removing the metal impurities, such as Fe, Pb, and Ba, Ca impurities, adding the significance component into strontium saline solution and NH4HCO3 solution, carrying out synthesis reaction, filtering, washing, drying and getting the product. The SrCO3 content of fluorescence strontium carbonate is only 95-99.5%, but when the fluorescence strontium carbonate is used in super long persistence luminescent material, the running quality is good. So the product can be used to produce high grade rare earth long persistence luminescent material whose initial brightness is above 25000mcd / m2, and after glow brightness is above 80mcd / m2. so the product has high capability / price ratio.

The present invention relates to a kind of multi-component gas blending apparatus, comprising several gas import branches, air compressor for gas blending, electromagnetic valve and filtration drying component for gas purification, and the produced blended gases can be used for protective gases in metal melting. Each of the gas import branches comprises gas container of pending gases for blending, pressure-relief valve for adjusting gas export pressure, flowmeter for adjusting gas blending proportion, electromagnetic valve for controlling gas import and close according to the working condition of the air compressor and one-way valve. The gas container of the air compressor is used as a gas-blending chamber and several kinds of gases are fully blended in the chamber through moving of air compressor piston, which can be used after purification and dry. The present invention has simple structure, which can guarantee control precision of several gases blending proportion for safer use.