4results about How to "Increase injection volume" patented technology

The invention relates to a low-nitrogen pulverized coal burner suitable for ultra-low load and a burning method, and belongs to the technical field of pulverized coal furnace burning. The pulverized coal burner is provided with a pulverized coal channel and a rich-lean separation device, the rich-lean separation device is composed of multiple stages of separation baffles, and all the stages of separation baffles are sequentially arranged in the axial direction of the pulverized coal channel. The pulverized coal channel is divided into a first-stage concentrated phase channel and a first-stage light phase channel through a first-stage separation baffle; the first-stage concentrated phase channel is divided into a second-stage concentrated phase channel and a second-stage light phase channel through a second-stage separation baffle; the (n-1) th-stage concentrated phase channel is divided into an n-stage concentrated phase channel and an n-stage light phase channel through an n-stage separation baffle; and a hydrogen swirl nozzle and an igniter are arranged in the n-stage concentrated phase channel. The method can be applied to the scene of deep peak regulation of the coal-fired boiler, the problem of heat efficiency reduction caused by ultralow-load operation is comprehensively considered and solved, and safe, efficient and environment-friendly operation of the pulverized coal boiler under the ultralow-load working condition is achieved.

The utility model discloses an intelligent goaf fire preventing and extinguishing system based on gravity layering, and relates to the technical field of goaf fire preventing and extinguishing. Comprising a control system, a monitoring system and a gas source supply system, the gas source supply system is located on the ground, the CO2 gas source supply system is connected with a first pipeline, the other end of the first pipeline is connected to the position, close to a bottom plate, of an underground working face roadway and connected with a CO2 conveying pipeline, and the N2 gas source supply system is connected with a second pipeline. The other end of the second pipeline is connected to the position, close to a top plate, of an underground working face roadway and connected with an N2 conveying pipeline, the monitoring system comprises a plurality of CO concentration detectors, the CO concentration detectors are arranged behind a coal face support, and the CO concentration changes are monitored in real time through the CO concentration detectors. According to the utility model, the technical problems of blind area coverage and insufficient inerting effect in the prior art are solved, and the safety and reliability of fire prevention and extinguishing in the underground goaf of the coal mine are improved.

The utility model discloses a filter cartridge dust remover pulse dust removal flow guide device based on venturi, relates to industrial flue gas treatment technical field, including the venturi flow guide cylinder of fixed in the filter cartridge top entrance end, the venturi flow guide cylinder includes the coaxial fixed upper section cylinder and contraction cylinder, and the bottom of upper section cylinder is connected with the top of contraction cylinder, and the bottom diameter of upper section cylinder, the top diameter of contraction cylinder all are same with the outer diameter of filter cartridge, the contraction angle of contraction cylinder is 23~25 DEG, and the bottom of contraction cylinder is fixed in filter cartridge top entrance end, and the bottom diameter of contraction cylinder is same with the inner diameter of filter cartridge, and the nozzle that is equipped with the direct top of venturi flow guide cylinder.

The utility model relates to continuous barrel plating production line technical field discloses automobile radiator fin continuous barrel plating production line, including the cylinder, the lid is rotationally connected with the inboard of cylinder upper end, and the both ends rotationally connected with fixed cylinder of cylinder, the one end fixed connection of fixed cylinder far from cylinder has the support, and the one end downside of fixed cylinder is provided with storage subassembly, and storage subassembly includes the storage box of fixed cylinder lower end setting, the one end fixed connection of storage box upside has the liquid inlet, and the first drainage of storage box lower end fixed connection has, and the middle end of storage box upside setting has the liquid injection subassembly, and the one end outside of cylinder is provided with the rotating subassembly, and the one end downside of fixed cylinder close to rotating subassembly is provided with the collection subassembly, and the upper end of collection subassembly is provided with the filter subassembly, can cooperate through storage subassembly and liquid injection subassembly etc., effectively maintain the rotating speed of cylinder, make its rotating speed maintain equilibrium, increase the injection amount of fresh electrolyte simultaneously, reduce the influence to fin coating, thereby effectively promote the uniformity of coating.