2results about How to "Solve the clogging" patented technology

This invention relates to the field of circulating fluidized bed boiler technology, specifically to an anti-clogging structure for the return feed port of a circulating fluidized bed boiler. This structure employs a high-pressure fluidizing air duct embedded in the return feed channel of the circulating fluidized bed boiler, with the port of the embedded section directly opposite the return feed port area where the return feed channel connects to the furnace of the circulating fluidized bed boiler. A high-pressure fluidizing air source is connected to one end of the high-pressure fluidizing air duct, providing fluidizing air that is blown from the port of the embedded section towards the return feed port area, preventing ash and coking in the return feed port area. By embedding a high-pressure fluidizing air duct at the end of the return feed channel, this invention effectively prevents abrupt changes in material flow characteristics and thermal imbalance at the return feed port during load variations, thus preventing the formation of a coke layer on the inner wall and ultimately causing blockage, which is beneficial for ensuring the normal operation of the boiler.

The utility model discloses an efficient vibration well cementation tool, and particularly relates to the technical field of casing pipe well cementation engineering under oil and gas wells, the efficient vibration well cementation tool comprises a guide head, a shell, a supporting ring and a center rod, the supporting ring and the center rod are arranged in the shell, the supporting ring is fixed on the middle upper portion in the shell, and a liquid inlet hole is formed in the supporting ring. A plurality of sets of impellers distributed in the circumferential direction of the supporting ring at equal intervals are arranged below the liquid inlet hole, the impellers are connected with a transmission gear through a transmission shaft, the center rod is connected with a reversing gear matched with the transmission gear, the center rod is fixedly connected with the guide head, and the center rod is connected with a balance weight eccentric block so that the center rod can drive the guide head to generate vibration. The impeller rotates to provide a rotating power source for the center rod, and the counterweight eccentric block is matched with the center rod to rotate to drive the guide head to vibrate, so that clogging or coal briquettes and the like in a well are crushed or guided through high-frequency vibration, the clogging problem is solved, and the friction resistance and buckling problems are avoided; and stable and rapid running of the casing pipe is realized.