41results about How to "Reduce radiation pollution" patented technology

The invention provides an automatic detection device suitable for multi-diameter pipeline welding lines. A carrier dolly module (3) of the invention is arranged on a flexible track module (1); a scanner module (2) is fixed on the upper part of the carrier dolly module (3) through a vertical plate (8) and a horizontal plate (9); a probe combination module (4) is fixed on the lateral side of the carrier dolly module (3) through a tracking module (5); an encoder (6) is fixedly arranged on an angle adjusting block (3-4) of the carrier dolly module (3); and a motor (7) is fixedly arranged on a reduction gearbox (3-7) of the carrier dolly module (3). The invention can be applied to the diameter welding line detection of a series of pipelines; the efficiency of the detection technique of the invention in the pipeline girth welding line non-destructive detection is much higher than that of manual ultrasonic detection; and the invention is obviously superior in detection speed, environmental radiation pollution reduction and labor intensity decrease.

The invention discloses a foam glass-based composite radar absorbing material and a preparation method thereof. The method comprises the following steps of: adding zinc powder and manganese dioxide into borosilicate foam glass, evaporating the zinc powder at high temperature, and reacting the evaporated zinc powder with oxygen so as to generate zinc oxide in the foam glass in situ. In the method,the needed raw materials are readily available, the cost is lower, the operation process is simple, the material is baked by a powder fusion method, the preparation temperature is low, and the formula is high in stability and reliability. The prepared absorbing material has excellent performance of absorbing electromagnetic waves, is applied to radiation-proof buildings, microwave heating, electromagnetic shielding of electronic equipment and the like, and also can be applied in the fields such as ground fortification anti-radar detection and resistance to electromagnetic interference militarily, microwave unreflected chambers and the like to reduce the electromagnetic radiation pollution.

The invention discloses an anti-blue light cream and a preparation method thereof. The anti-blue light cream comprises the following components: EDTA‑2Na, butanediol, glycerin, betaine, sodium hyaluronate, nicotinamide, allantoin, maltooligosaccharide Glucoside, Hydrogenated Starch Hydrolyzate, Thickener, Emulsifier, Dimethicone, Petrolatum, Surfactant, Glyceryl Stearate / PEG‑100 Stearate, Cetearyl Alcohol, Glyceryl Stearate, Polyglyceryl‑3 Methyl Glucose Distearate, Cyclomethicone, Triethanolamine, Phenoxyethanol, Ethylhexylglycerin, Caprylic Capric Triglyceride, Mung Bean Seed extract, oat extract, dimethicone, lecithin, buddha extract, ginger root extract, coffee seed extract, and purified water. The invention provides an anti-blue light cream, which can reduce active oxygen and free radicals generated under blue light radiation, strengthen the protection of the skin, and thereby reduce the damage of the blue light to the skin.

The invention discloses a radio communication system and a radio frequency transmission control method. The radio communication system comprises a transmitter, a transmitting end control module, a transmitting end power supply, a receiver, a receiving end control module and a receiving end power supply, wherein the transmitting end control module is respectively connected with the transmitter and the transmitting end power supply; the receiving end control module is respectively connected with the receiver and the receiving end power supply; the receiving end control module is used for monitoring the power supply state of the receiver, generating enabling information and transmitting the enabling information to the transmitting end control module; and the transmitting end control module is used for receiving the enabling information and controlling the on / off of the transmitter according to the enabling information. By adopting the radio communication system and the radio frequency transmission control method, the power consumption of the transmitter can be controlled and the radio signal interference and radiation pollution can be effectively reduced.

The invention discloses a method for drying an electric furnace by using molten iron. The method comprises the following steps of: paving a layer of ramming material at the bottom of a newly-built furnace in advance; paving a layer of light and thin material which is a wood material and an iron sheet on the ramming material; adding scrap steel in an amount which is 20 to 35 percent based on the capacity of the furnace into the furnace; electrifying an electrode for arc ignition, slowly increasing power from 30-40MW to 60-70MW, and melting the scrap steel; opening an oxygen lance on a furnace wall, adding the molten iron in an amount which is 30 to 60 percent based on the capacity of the furnace into the furnace, and continuously electrifying for oxygen blowing to ensure that the scrap steel is completely melted; adding 0.03 to 0.05 ton of lime slagging material into 1 ton of steel, and performing the normal steel smelting process; measuring the temperature of molten steel by using a thermocouple, stopping electrifying and supplying oxygen when the temperature of the molten steel reaches 1,600-1,650 DEG C, and drying the furnace for 15 to 30 minutes; and tapping if the temperature and components of the molten steel reach the required ranges. The method has the advantages of low energy consumption, short time and low cost.