32results about How to "No radioactive hazard" patented technology

The invention relates to gold tail mine concrete block and its productive technique, which belongs to wall material for building and productive technical field. Its characteristics is that the main raw material for making concrete block includes slag, cement, burnt lime, aluminum powder and water, and their mess ratio is: slag 60~70%, cement-6~10%, burnt lime-20~30% aluminum powder -0.01~0.05% and the water content can be changed according to the requirement of gold tail slime density. The invention can reach the purposes of environmental protection, energy saving, using the waste, increasing the building's quality and assuring people's health, it can use waste slag completely, with good resistance to coldness and without radioactive harm, can be compound with mortar so that solve the problem of wall surface falling down.

The invention relates to biological microcrystalline glass prepared by utilizing phosphate tailings and a preparation method thereof. The biological microcrystalline glass comprises the following raw materials in parts by weight: 30 to 35 parts of the phosphate tailings, 15 to 25 parts of quartz sand, 10 to 16 parts of aluminium hydroxide, 20 to 28 parts of calcium hydrophosphate, 9 to 13 parts of calcium fluoride, 0 to 5 parts of magnesium oxide, 0 to 5 parts of zinc oxide and 0.5 part of sodium borate, wherein the utilization rate of the tailings reaches more than 30%. Compared with a product produced by utilizing conventional chemical raw materials, the biological microcrystalline glass has better physical and chemical properties and realizes reduction in the raw material cost by more than 30%. Based on the SiO2-Al2O3-P2O5-CaO-CaF2 system, the magnesium and the zinc are utilized to replace the partial calcium, so that a new magnesium-series wagnerite phase and a zinc-series zinc pointed crystal phase are generated, and therefore, the brittleness of the biological microcrystalline glass is improved while the mechanical strength is improved. In addition, the biocompatibility, the bioactivity and the chemical stability of the biological microcrystalline glass are improved.

The invention discloses a method and device for test detection of degassing factors of a degassing tower of a nuclear power plant. The method for test detection of the degassing factors of the degassing tower of the nuclear power plant comprises the following steps of S1, dissolving simulation gases in simulation material liquid to simulate radioactive raw material liquid, wherein the simulation material liquid is a solution which contains boric acid in a dissolved mode, the simulation gases comprise N2, O2 and a stable isotope Xe, and the Xe is a tracer element; (2) injecting the simulation material liquid with the simulation gases in a dissolved mode into the degassing tower to carry out degassing; (3) using the simulation material liquid discharged from the degassing tower after the degassing as tower bottom material liquid, measuring the concentration of the Xe in the tower bottom material liquid, and calculating the degassing factors of the degassing tower. The device for test detection of the degassing factors of the degassing tower of the nuclear power plant comprises a mass spectrometer, a feed liquid tank, a gas-liquid mixer, the degassing tower and a sampler, wherein the feed liquid tank, the gas-liquid mixer, the degassing tower and the sampler are connected in sequence. The method and device for test detection of the degassing factors of the degassing tower of the nuclear power plant have the advantages of being good in economy of detection of the degassing factors of the degassing tower, free of radioactive hazards, and capable of protecting the environment.

The invention discloses an optical circulation enlarged type biological chip detecting method, wherein the enzyme recirculation and bioluminescence are combined, for realizing the FMNH#-[2] accumulation through the circulation on the electrodes by the NADH / NAD#+[+] oxidation-reduction, the high level accumulation FMNH#-[2] reacts with other light-emitting bottom luciferase, long chain aldehydes and oxygen, giving off fluorescent light having wavelength of 490nm. The invention realizes high sensibility, low cost and simplicity of operation, thus is suitable for each types of biological sample analysis.

The invention relates to an A-grade inorganic fireproof foam insulation board produced by tailings and a preparation method of the insulation board. Raw materials include, by weight, 40-60 parts of copper tailings, 30-50 parts of bauxite tailings, 0-15 parts of silica sand, 2-10 parts of industrial sodium carbonate and 0.2-1.5 parts of high-temperature foaming agents. According to a preparation process, the insulation board is produced by 'wet ball-milling, spray granulation and high-temperature foaming'. The copper tailings and the bauxite tailings serve as main raw materials, the insulation board cannot combust at the temperature higher than 750 DEG C, raw material production cost is reduced by 36-45%, the insulation board can fundamentally solve the problems that an insulation board mainly comprising organic components is combustible, poor in fireproof performance and high in cost, pollutes environments and harms human health in the current domestic market, and the existing insulation board is high in water absorption, short in service life and low in performance index and easily falls off. Environmental problems and potential safety accidents caused by tailings stacking are effectively relieved.

The invention provides a nickel slag autoclaved aerated concrete block. The raw materials comprise basic materials, admixtures and water, wherein the basic materials comprise nickel slag, coal ash, cement, quick lime, aluminum powder and gypsum; and the admixtures comprise thickened stabilizers and ion crystal modifiers. The invention also provides a method for preparing the nickel slag autoclaved aerated concrete block. The quality of the nickel slag autoclaved aerated concrete block disclosed by the invention meets the requirement on national standard GB11968-2006, and a way is found for large-scale utilization of nickel slag.

The invention discloses a river silt detection device, which comprises a silt probe (1), a suction pipe (2), a metering water pump (3) and a photoelectric detector (4), and the metering water pump (3) is installed on the water suction pipe (2) ), the water inlet of the suction pipe (2) is connected to the upper part of the sludge probe (1), the water outlet of the suction pipe (1) is connected to the photoelectric detector (4), and the sludge probe (1) includes a probe cylinder (11), a solenoid valve (12 ) and clean water pipe (13), the solenoid valve (12) is set on the bottom surface of the probe cylinder (11), the clean water pipe (13) is set on the side wall at the bottom of the probe cylinder (11), and the clean water pipe (13) opens to float At least 5 meters, a touch switch (14) for controlling the closing of the solenoid valve is installed on the bottom surface of the probe cylinder (11). The technical effects of the invention are: the thickness of the silt can be accurately measured, the silt is less disturbed, there is no radioactive hazard, the use is safe, the structure is simple, and it is easy to operate and measure.