Patent application number | Description | Published |
20100012594 | Method of collecting high-level radioactive uranium powder underwater - This present invention is related to a method of collecting high-level radioactive contaminated uranium powder underwater. It utilizes a long rod fixed to the pipe of the sewage pump at bottom, and takes another end of the sewage pump to connect to the sediment bag to collect uranium powder which is dispersed and contaminates the pond. Inhaling the pond water contains uranium powder into the sediment bag by sewage pump that is joined to a collecting can under it and waiting for precipitation of the powder. When the uranium powder in the sediment bag is completely precipitated into the collecting can, operator can utilize submersible pump to drain the pond water from the sediment bag. Operator may hold the cable wire of the uranium powder collecting can manually to move it to the collecting shelf and repeat the process several times until the high-level radioactive uranium powder in the contaminated pond are all collected on the uranium powder collecting shelf. | 01-21-2010 |
20110024364 | Filtration separation method for waste resin containing highly radioactive uranium powder and device thereof - A filtration separation method for waste resin containing highly radioactive uranium powder and device thereof is mainly used for the waste resin after water treatment process in a nuclear facility. The uranium powder contained in the waste resin is highly radioactive. Thus, prior to the treatment of the waste resin, it is necessary to filter and separate the highly radioactive uranium powder to reduce the radioactivity. It is to put the uranium powder containing waste resin into an underwater holding tank and withdraw the waste resin by an underwater pump into a uranium powder filtration box. Then the uranium powder filtration box is lifted by a hoist to move to an underwater ultrasonic cleaner. High-pressure water flushing is applied and followed by underwater ultrasonic cleaning. Then the cleaning water (containing precipitated uranium powder) from the ultrasonic cleaner is drained to uranium powder collection device. If the radioactivity of the waste resin is still high, high-pressure cleaning by water nozzle flushing and ultrasonic cleaning are applied several times until the radioactivity of the waste resin is lowered to the treatment standard and converted to low-radioactivity waste for further treatment. | 02-03-2011 |
20110296932 | APPARATUS AND METHOD FOR SAMPLING UNDERWATER RADIOACTIVE SOLUTION - The present disclosure provides an apparatus and a method for sampling underwater radioactive solution. The apparatus and method are used for sampling underwater radioactive waste stored in the radioactive reservoir of nuclear facilities or in the container of said reservoir, in order to determine the nuclides and the radiation dosage at different depths in the radioactive solution. | 12-08-2011 |
20120055882 | APPARATUS AND METHOD FOR COLLECTING SOLID MICROPARTICLES FLOATING IN WATER - The present invention relates to an apparatus and method for collecting solid microparticles floating in water, and more particularly, to a safe, ease to use, and environmental friendly collecting apparatus and method adapted for collecting radioactive solid microparticles floating and depositing in a cooling water tank of nuclear facility or a tank for storing radioactive materials. | 03-08-2012 |
20130001430 | Inspection method and apparatus for shielding container for high-activity waste - An inspection method and apparatus for shielding container for high-activity waste is mainly to design the inspection depth of a radiation source in a shielding container and the inspection zone outside the shielding container. It employs a sticking lifting buckle ring at the container cover bottom and a flexible pull string to hang a radiation source inside the shielding container. Between the shielding container and the container cover, there is a compression resistant tube to allow the flexible pull string to pass through and extend outside the shielding container. The flexible pull string allows descending and ascending operation of the radiation source to different height inside the shielding container. The method also includes measuring and recording surface dose rate in each inspection zone outside the shielding container. With the measured surface dose rate from each inspection zone, the method uses a radiation shielding estimation and verification procedure to determine defected shielding container. | 01-03-2013 |
20130167668 | APPARATUS AND METHOD FOR SAMPLING UNDERWATER RADIOACTIVE SOLUTION - An apparatus and a method for sampling underwater radioactive solution. The apparatus includes a main unit, a connecting rod inserted into the main unit, a connecting ring connected to one side of the connecting rod, a container unit connected to the opposite side of the connecting ring, a solution access channel, an air motor for changing air pressure in the container unit to draw or extract the radioactive solution in or out of the container unit, a holder for fixing the air motor on the main unit, a synchronizing connector for connecting the connecting rod to the air motor, so as to synchronize the back-and-forth movement of the connecting rod with the air pressure of the air motor, a control unit for controlling the operation of the air motor, a flexible pipe connecting the air motor to the control unit, and a depth-setting unit. | 07-04-2013 |
20130333329 | METHOD FOR PORTIONING HIGH RADIATION INTENSITY WASTE AND APPARATUS THEREFOR - The present invention is directed to a method for portioning high radiation intensity waste and an apparatus thereof. A hanging mechanism hangs both a manual lifting mechanism and a lead shield, wherein the manual lifting mechanism is provided with a net basket hanging chain extending downwards, wherein the net basket hanging chain can be manipulated to be lifted or lowered. The net basket hanging chain is secured to a net basket containing the high radiation intensity waste. The lead shield is arranged under the hanging mechanism and in a path, along which the net basket is lifted or lowered, wherein the lead shield is provided with a space having an opening facing down. | 12-19-2013 |
20150020405 | Method of drying high-level radioactive wastes and device thereof - A method of drying high-level radioactive wastes and device thereof contains a suspension mechanism for hanging a manual elevating mechanism, and a shielding cover. The manual elevating mechanism couples with a basket for accommodating wastes by using a hanging rope, and the shielding cover is fixed below the suspension mechanism and in a moving path of the basket. The basket is moved to a storage tank containing water in which radioactive wastes are stored, and the radioactive wastes are pumped into the basket by means of a pump. The basket is then lifted above a water surface of the storage tank and received in the shielding cover, and then the shielding cover is moved into a water holder so as to drain waters in the basket. The basket is further moved onto a heating seat to be heated and a vacuum equipment is started to dry the radioactive wastes. | 01-22-2015 |