63results about How to "Good stress resolution" patented technology

The invention discloses a cyclone wet dust collection type energy-saving coal-fired boiler. A high-temperature tail gas tube of a boiler body is connected to an air induction fan through the tube side of a water preheating tubular heat exchanger and a cyclone dust collector; water in a sewage pool below the cyclone dust collector is connected to a spraying plate in the cyclone dust collector through a spraying pump; a high-position soft water pool supplies water to the boiler after being preheated by the shell side of the water preheating tubular heat exchanger; threaded assembly with the automatic locking effect is adopted between a belt pulley and a fan shaft of the air induction fan and between a fan impeller and the fan shaft of the air induction fan; the fan impeller is in threaded and rigid connection with the fan shaft after pressing a copper-plastic reversed composite pad; the belt pulley and the other end of the fan shaft are connected rigidly through a clamp part. According to the boiler, heat recovery and purification treatment of tail gas of the boiler are realized, the disassembly and assembly technology of the air induction fan of the boiler is greatly modified, the problems that the air induction fan of the boiler is continuously and automatically locked and is difficult to disassemble under the loading effect due to threaded assembly can be effectively solved, and large boiler fans can be disassembled conveniently and quickly after being locked in a threaded mode.

The invention discloses a residual heat recycling and dust removal integrated coal-fired boiler with a conveniently detachable draught fan. A cyclone dust removal residual heat efficiency recycling device is formed by overlapping a tubular heat exchanger and a cyclone dust remover; a boiler exhaust pipe is connected with the cyclone dust remover in a tangential direction; after cyclone dust removal is carried out, ash is discharged from a cone bottom through an air closing device; exhaust is connected with a cone body through a rotational flow ascending pipe, is uniformly dispersed and then penetrates through tubes; after being concentrated through an upper conical hopper, the exhaust is discharged by the draught fan through an exhausting pipe; a high-level water tank is connected with the lower part of a shell side of the tubular heat exchanger; and an impeller of the draught fan can be used for cleaning the ash in real time through a centrifugal force. The residual heat recycling and dust removal integrated coal-fired boiler realizes integrated type residual heat recycling and dust removal; more importantly, a dismounting technology of the draught fan is greatly improved, and pressure on the end face of a screw shaft shoulder of a screw cap part can be simply eliminated in a dismounting process, so that the problem that thread assembling of the draught fan is continuously automatically locked under the action of a load and thus detachment is not easy is effectively solved; and therefore, the technical scheme is particularly suitable for conveniently detaching a large-size draught fan locked through a thread and the effect is particularly remarkable.

The invention discloses a Raymond mill device with a convenient-to-disassemble fan. The fan, a Raymond mill, a cyclone separation discharger and a return air pipe form an airflow circulating milling discharging system, a pressure-equalizing exhausting branched pipe is connected with the upper end of a cyclone pipe, multiple cyclone separators are arranged in the cyclone pipe, the lower end of the cyclone pipe is tangentially connected with the cyclone separation discharger, the cyclone separation discharger discharges purified air and immerses below liquid level of a circulating water pool which is connected with the upper end of the cyclone pipe, blades of an induced draft fan impeller are arranged radially in a manner than the impeller is in axial, radial and central symmetry, and centrifugal force can be utilized to timely clean dust to avoid safety accidents. The Raymond mill device is less prone to causing mineral powder dust leakage, disassembling and assembling technology of an induced draft fan is improved substantially, pressure applied on screw shaft shoulder end faces by nut parts can be eliminated simply during disassembling of the fan, and the problem that the induced draft fan which is in threaded assembly constantly locks automatically and is difficult to disassemble under load action is solved effectively. The Raymond mill device is especially suitable for and has particularly remarkable effect on convenient and quick disassembling of large fans after being locked in a threaded manner.