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.

A negative ion additive for paint contains the electronic beam activated superfine tourmalinite powder, photocatalytic TiO2 nanoparticles, superfine topaz powder, and superfine TiO2 and/or SiO2 powder. Its advantages are high power to generate negative ions, high effect to remove formaldehyde, ammonia, benzene, VOC and other pernicious gases, and high safety.

The invention discloses a flexible stone and a manufacturing method thereof. The flexible stone comprises the following raw materials: 20 to 40 percent of cement, 2 to 15 percent of latex powder, 0.3 to 2 percent of organic silicon water repellent, 0.1 to 2 percent of fiber and the balance of filler such as waste building cement blocks, waste blocks of a stone plant, cinder, waste powder of a ceramic plant, quartz sand and the like. The manufacturing method comprises the following steps of: crushing the filler, mixing the crushed filler and other raw materials, and adding 15 to 30 percent of water into the mixture to obtain composite slurry; and coating, pouring or extruding the composite slurry on a stone texture die, solidifying the composite slurry at normal temperature and then releasing a solidified object from the die to obtain the flexible stone. The flexible stone has light weight, surface density of less than 8kg/m<2> and extremely good stone simulating effect. The flexible stone can be stuck by using polymer cement mortar without dry-hanging assembly, and is particularly suitable for decoration of an outer wall. The used raw materials have no harm to the human body, have no radioactive hazard, do not generate volatile gas, and are also suitable for indoor decoration. The flexible stone makes full use of building wastes, and is economic and environment-friendly.

The invention discloses a production method of anion dipping paper/an anion veneer artificial board base material/an anion veneer artificial board. The production method of the dipping paper comprisesthe steps that S1 anion mixed liquid is prepared from the following components in parts by weight: 30-40 parts of tourmaline powder, 5 parts of borax, 5 parts of aluminum oxide, 3 parts of nano silver, 10 parts of nano zinc, 1 part of sodium fluosilicate and 40-70 parts of deionized water; S2 the anion mixed liquid prepared in the step S1 and melamine glue are utilized to prepare an anion glue solution at the weight ratio of 1 to 25,wherein the density of melamine glue is 1.0-1.25g/cm<3>, the viscosity is 20-70 MPa.s, the pH value is 8-9.5, and the mass percentage content of solid is higher than or equal to 30%; and S3 to-be-dipped paper is dipped into the anion glue solution prepared in the step S2 and then dried, so thatthe dipping paper is obtained.

The invention discloses a novel lightweight composite heat-insulation ceramic construction material. The novel lightweight composite heat-insulation ceramic material mainly comprises, by weight, 40-55 parts of ceramic waste, 5-15 parts of calcium-carbonate-based waste, 1-10 parts of clay, 2-15 parts of bentonite and 6-8 parts of foaming agent, and is obtained by subjecting the raw materials in the weight part ratio to smashing, firing and follow-up treatment under a certain conditions. The novel lightweight composite heat-insulation ceramic construction material has the advantages that the ceramic waste is taken as a production raw material, so that comprehensive utilization of industrial waste, energy conservation and environment protection are achieved; the prepared novel lightweight composite heat-insulation ceramic construction material is low in cost and density, small in heat conduction coefficient, high in compressive strength and tensile strength, capable of proofing fire completely and the like.

The invention discloses an environment-friendly baking-free brick prepared from sludge and furnace slag. Raw materials include: sludge, domestic incinerator slag, cement, a curing agent and water in amass ratio of (35-40): (10-15): (40-50): (5-10). The preparation method comprises the following steps: carrying out pyrohydrolysis and thermophilic anaerobic digestion treatment on raw sludge, and dehydrating to obtain dehydrated sludge; adding a deodorant into the dehydrated sludge, naturally deodorizing and airing, then crushing, sieving with a 100-mesh sieve to obtain sludge powder, and sieving the domestic incinerator slag with a 50-mesh sieve to obtain slag particles; and mixing the sludge powder and the slag particles with Portland cement, a curing agent and water, putting the obtainedmixture into a mold, performing extrusion and compression molding, and performing maintenance in air so as to obtain the environment-friendly baking-free brick. Waste sludge and furnace slag can be used as raw materials to prepare the environment-friendly baking-free brick which is stable in property, free of pollution and capable of meeting the strength requirement.

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 a method for detecting gastric motility with ultrasound contrast-enhanced filling, which includes the following steps: the first step, the evaluation and preparation before the ultrasound contrast-enhanced examination, including the following three aspects: evaluating the physiological function and psychological state of the examinee; Stomach preparation of the patient: fasting and drinking before the examination; preparation of gastric filling type acoustic contrast agent; the second step, ultrasonography, including the following two aspects: confirming that the subject’s stomach is empty; gastric filling type contrast ultrasonography : The examinee drank a stomach-filling acoustic contrast agent after sitting; then scanned the gastric antrum with an ultrasonic imaging device and measured the peristaltic rate of the gastric antrum center, the peristaltic distance in one cycle, and the difference in the motion amplitude of the gastric antrum wall; the whole process of contrast-enhanced ultrasound Store the dynamic images; finally, according to the contrast dynamic images, analyze and discuss the results of ultrasound examination. The invention has the characteristics of non-invasiveness, convenient operation and no radiation hazard.

The invention discloses a river silt detecting device which comprises a silt probe (1), a water pumping pipe (2), a metering water pump (3) and a photoelectric detector (4). The metering water pump (3) is mounted on the water pumping pipe (2), a water inlet of the water pumping pipe (2) is communicated with the upper portion of the silt probe (1), a water outlet end of the water pumping pipe (2) is connected with the photoelectric detector (4), the silt probe (1) comprises a probe barrel (11), an electromagnetic valve (12) and a clear water pipe (13), the electromagnetic valve (12) is arranged on the bottom surface of the probe barrel (11), the clear water pipe (13) is arranged on a side wall of the bottom of the probe barrel (11), an opening of the clear water pipe (13) floats for at least five meters, a touch switch (14) is mounted on the bottom surface of the probe barrel (11), and the electromagnetic valve can be closed under the control of the touch switch (14). The river silt detecting device has the technical advantages of little disturbance on silt, zero radioactive hazards, safety in use, simple structure, easiness in operation and measurement and capability of accurately measuring the thickness of the silt.

The invention aims at the shortages of radiological hazards, inconvenience in operation, uneasiness in mixing, large errors and influences on fish feeding and the like existing in the prior art for determining individual food intake of fish, and provides a method for determining the individual food intake of fish. The specific scheme is as follows: mixing metal particles the diameters of which are about 0.25 mm after screening and conventional feeds according to a certain proportion to prepare a feed containing the metal particles, feeding the feed to experimental fish, detecting the fish body by an X-ray machine after the feed is sucked by the gastrointestinal tract of the fish, and indirectly determining the food intake of the fish according to the number of the metal particles. The method provided by the invention is without radiological hazards, simple and convenient to operate, smaller in errors, and free from influences on fish feeding; the metal particle indicators are discharged completely within 24 hours, and the fish is not injured. A foundation for studying utilization efficiency of fish feeds is laid by the method.

The invention discloses a novel wear-resisting plate produced by using waste moulding sand and a preparation method of the plate. The novel wear-resisting plate produced by using waste moulding sand comprises the following raw materials in parts by weight: 40-60 parts of waste moulding sand, 0-15 parts of quartz sand, 22-40 parts of calcium carbonate, 1-7 parts of aluminum oxide, 0-2 parts of sodium nitrate, 2-10 parts of sodium carbonate, 8-20 parts of magnesium carbonate and 1-2 parts of chromium sesquioxide. According to the invention, waste is used as the production raw material, so that the cost for producing the wear-resisting plate is reduced; by taking diopside as the main crystalline phase, the wear-resisting plate is large in hardness, high in strength, corrosion resistant, weather resistant, non-absorbent and free of radioactive dangers; and at the same time, the volume of cargo in storage of the waste moulding sand is decreased, so that the recycling of the waste is realized and the environment pollution is prevented and treated. The wear-resisting plate is prepared by using a melting-calendaring-crystallization process and the product is capable of replacing certain metals or other materials at certain places, so that the cost is reduced and the service life of the equipment is prolonged; and the wear-resisting plate can be widely applied to the fields of electric power, coal, mine, metallurgy, building and the like.

The invention relates to a clay/polyolefin granule dyeable fine denier polypropylene fiber. The composition thereof comprises clay/polyolefin composite granules and polypropylene granules with the weight ratio of 1-10:90-99; the preparation includes: modifying the clay by an organic modifying agent, mixing the modified clay with olefin monomers and an evocating agent, adding the mixture into aqueous solution containing a dispersing agent, introducing nitrogen for 60-90min, stirring while the reaction is performed, and after the granules are hardened, washing and drying the granules to obtain the clay/polyolefin composite granules; melting and mixing the clay/polyolefin granules with polypropylene granules, extruding and cooling, and granulizing by a granulator to obtain blended slices; processing the blended slices by a spinning machine to obtain fine denier filaments, and preparing dyeable fine denier polypropylene fiber by winding and drafting. In the method, clay inorganic substance is used as raw material, thereby lowering cost compared with rare earth, and generating no radioactivity; meanwhile the dye-uptake rate of the fine denier polypropylene fiber can achieve 85-92%.