40results about How to "No radiation pollution" patented technology

The present invention discloses one kind of granite imitating paint for building decoration and its preparation process and the imitated granite making process therewith. The granite imitating paint consists of white cement powder 35-40 weight portions, marble powder 10-15 weight portions, adhesive 15-20 weight portions, and acrylic emulsion 5-7 weight portions. It is prepared through mixing the components through stirring. The paint is sprayed to the surface to be treated to obtain the imitated granite, which is hard, compact, homogeneous, smooth, and exactly like granite. It is widely suitable for decoration of wall and floor decoration.

The invention discloses a mobile LED operating shadowless lamp with an adjustable switch disposed on a traversing carriage, and an optical collector secured on an arm extended transversely on the traversing carriage, where the optical collector consists of a focuser with a handle and a lamp panel with a bottom as a spherical surface concave downwards and plural radiating seats equipped with batteries of lens distributed thereon, where at least three lamp panels are distributed with equal interval around the focuser, to be hinged with the same through a hinge; an LED drive controller is secured on the radiating seat, a power converter and a standby power are connected with the input end of a power switcher, while the output end of the power switcher is connected with the LED driver controller and the adjustable switch connected with the LED drive controller in parallel; the LED drive controller are connected with plural high-power LED chips in parallel electrically. The invention is advanced with adjustable brightness, super long service life, safe utilization, and uniform luminous spot, which can improve illumination quality and reduce medical negligence.

The invention relates to a method used for detecting the liquid level of liquid steel and protecting the thickness of a slag layer of slag liquid in a crystallizer and belongs to the technical field of continuous casting of metal. A crystallizer wall inner temperature measuring / collecting module, an anti-inference method calculation heat flow density module, a heat flow density spectral analysis module and an interface recognition module are involved in the method. The modules are connected in series. By means of the function of the modules and information flow exchange among the modules, the position of the liquid steel and the position of the liquid slag layer are determined, and therefore the liquid level of the liquid steel and the thickness of the liquid slag layer are detected. As the new detection principle is adopted, the method has the advantages that radiation pollution is avoided, use is safe and reliable, the maintenance property of equipment is good, labor intensity is low, the method is simple and easy to implement, adjusting is convenient, the response speed is high, the capacity of resisting disturbance is high, and control precision is high. The method has high industrial application value, and the liquid level of the liquid steel and the thickness of the liquid slag layer in the crystallizer can be monitored in real time.

The present invention relates to a radio frequency identification monitoring device for goods, which comprises a hardware part and a software part, wherein the hardware part comprises a radio frequency electronic label and a monitor, the monitor is internally provided with an induction antenna, an embedded processor, a data identifying and reading circuit, a data storage and communication circuit, a clock circuit, an audible-visual alarm and a power control circuit board. The radio frequency electronic label is embedded at the bottom of the goods, the induction antenna is connected to the embedded processor through an identifying and reading module, and the data storage and communication circuit, the clock circuit and the audible-visual alarm are respectively connected to the embedded processor through data address lines. The device has scientific, reasonable and creative design, strong practicability and wide application range. The device has the advantages that due to the adoption of the radio frequency identification technology, the automatic identification and the real-time monitoring management to the goods can be realized, an alarm is made in time to illegal taking or state abnormality to prevent the goods from being stolen and lost, therefore, the device has good application prospect.

The present invention is the method and special equipment for preparing granular silicon belt capable of being used as the substrate material of polysilicon film solar cell. The technological process includes making silicon powder spread on quartz plate or graphite plate pass through preheating area, linear focusing heating area and natural cooling area successively. The linear focusing heating area is one optical heating area comprising two halogen tungsten lamp assemblies with optical linear focusing reflector on the upper and the lower sides separately. In the linear focusing heating area silicon powder layer is zone molten and the molten silicon solution flows into the gaps between silicon powder grains to form so-called granular silicon belt after being cooled. The granular silicon belt has molten crystallized surface with certain mechanical strength and chemical stability and low cost and is suitable for use as the substrate material of solar cell.

The invention discloses a dismantling device and a dismantling process of a large-scale shielded main pump in a radioactive environment, belonging to the technical field of maintenance of a large-scale shielded main pump of a nuclear power plant. The invention includes an impeller nut locking pin removal assembly, a C-ring cutting assembly, a lower radial bearing disassembly and a rotor core-pulling assembly. The impeller nut locking pin removal assembly includes an upper plate, a lower plate, a connecting screw, a double-ended screw rod, Fixing nuts, adjusting nuts; C-shaped ring cutting components include wall-mounted components and cutting components; wall-mounted components include pressure plates and wall-mounted main bodies; lower radial bearing removal and rotor core-pulling components include base plates for connecting base plates and pumps The base plate support of the body, the double-ended screw rod used to connect the base plate and the lower radial bearing and the nut connected to the double-ended screw rod, the lifting lugs on the base plate, and the connecting lugs used to connect the base plate and the pump Rotor support tools and spacers for the shaft, main bolts for connecting the foundation plate to the pump body. The invention has simple operation and can safely and efficiently complete the dismantling of the large shielded main pump.