66results about How to "Clean production environment" patented technology

The invention relates to hot-melting type filling paste for an electric cable, which mainly comprises base oil, insulation paste, an oil separation inhibitor, a thickening agent and an antioxidant. The invention further provides a preparation method of the hot-melting type filling paste. The hot-melting type filling paste for the electric cable provided by the invention has the main characteristics of excellent colloidal stability and oxidation stability, heat resistance, weather resistance, no oil separation in systems, small acid value, strong water resistance, no emulsification, excellent high / low temperature performance, and extremely-excellent electrical properties and dielectric properties; the hot-melting type filling paste is mainly applicable to filling air gaps in a cable core of a multi-conductor wire cable, or gaps among electric cable members of an any structure by heating, so as to prevent water or other fluid from flowing or migrating into the electric cable and provide excellent functions in insulation, waterproofing, dampproofing, buffering and the like for the electric cable.

The invention discloses an ageing-resistant heat-insulation tarpaulin. The tarpaulin is composed of a polymer cloth base and an ageing-resistant heat-insulation coating which is coated on the polymer cloth base in a casting mode. After aging is quickened for 236 hours by simulating natural manual work, the tensile strength of the tarpaulin is improved by at least 10%, the elongation at break thereof is improved by at least 5% than the elongation at break before aging, the ultraviolet reflectivity thereof is more than or equal to 80%, and the infrared obstruction rate thereof is more than or equal to 85%. The invention also discloses a preparation method thereof, comprising the following step: pretreating a heat-insulation material by utilizing a surface treating agent; and premixing the heat-insulation material with accessory ingredients such as vinyl type polymer, antioxidant and the like, then putting the heat-insulation material and the accessory ingredients into a double-screw extrusion casting coating machine to be fused, plasticized and extruded out to be casted and coated on the polymer fiber cloth base, and carrying out cooling shaping and reeling by utilizing a cooling roll to obtain the ageing-resistant heat-insulation tarpaulin. The tarpaulin product obtained by the invention has favourable water proofness, heat-insulating property and ageing-resistant property, wide application range, no pollution in the production process, small energy consumption, low cost and easy popularization and application.

The invention discloses a bearing ring machining device. The bearing ring machining device comprises a feeding device, a turning device, a cutting device, a cold expanding device and a heat treatmentdevice. The feeding device comprises a storage box, an ejection device and a conveying device. The ejection device is arranged at the bottom of the storage box. The conveying device is arranged at thetop of the storage box and is provided with a through hole. The through hole is parallel to the ground, and an electric friction wheel is arranged in the through hole. A rotary bearing is arranged onthe outer side of the electric friction wheel. The turning device is arranged on the side face of the feeding device. The cutting device is arranged between the turning device and the conveying device. The cold expanding device is arranged below the turning device. The heat treatment device is arranged below the cold expanding device. By adoption of the bearing ring machining device, the problemsof low bearing ring machining efficiency and poor bearing ring machining precision of the prior art are solved; and the bearing ring machining device has the characteristics of being simple in structure and convenient to use.

The invention discloses a brewing method for a high-salt liquid-state fermentation soy sauce. The brewing method comprises the following steps of: preparing materials, stewing the materials, producing a starter, fermenting and spraying oil, wherein the steps of fermenting and spraying oil are carried out in a glass steel can. The fermenting specifically comprises the following processes of: adding the materials which are treated by the steps of preparing materials, stewing the materials and producing the starter to a saline solution, weight of which is 2-3 times that of the materials; adding the mixture to the glass steel can which is paved with a false substrate at the bottom, controlling the thickness of the fermentation layer to 1.5m-3.8m, and spraying and fermenting for 4-8 months. The spraying and fermenting specifically comprises the following processes of: spraying every day at the initial 30 days of the fermenting; spraying every two days from the 31st day to the 90th day; spraying every 3-7 days after the 90th day, wherein each spraying time is 3 minutes to 10 minutes, and the flow rate is 20kg / min to 40kg / min. According to the brewing method disclosed by the invention, the environment is sealed in the fermentation process, and is sanitary and safe. The process for fermenting and spraying oil in a same fermentation tank are simpler, efficient and low in production cost; and the production environment is clean and sanitary for being beneficial to saving energy and reducing emission. Besides, the produced soy sauce is good in flavor and bright in color.

The invention belongs to the field of fiber cable technology, in particular to a layer-stranded ribbon fiber cable for electric power or communication. The ribbon fiber cable comprises multiple loose tubes outside a reinforcing piece and a small filling rope in an outer gap of every two adjacent loose tubes. The loose tubes and the small filling ropes are provided with a protection layer outside. The exterior of the protection layer is coated by a sheath layer in an extrusion molding manner. The fiber cable is characterized in that multiple fiber cable ribbons are arranged in each of the loose tubes; each of the fiber cable ribbons is provided with multiple optical fibers and multiple fiber cable ribbon resin coating the whole optical fibers; there is no other visible filling matter except for the fiber cable ribbons in gaps of the loose tubes; and there is no visible filling material in gaps formed by the loose tubes, the reinforcing piece, the small filling ropes and the protection layer. The beneficial effects are that the fiber cable ribbons have quite high water resisting performance; cost of the fiber cable is quite low; the fiber cable is quite environmentally-friendly and light; detection and construction are quite convenient to perform; and production environment is quite clean.