5results about How to "Reduce installed power" patented technology

The invention relates to the technical field of mine refrigeration and cooling, in particular to a mine refrigeration and cooling pipeline arrangement system. The water outlet end of a main circulation pipeline is connected with the water inlet end of a cooling device to form a closed circulation loop; the main circulation pipeline is laid in the extending direction of the roadway and serves as a liquid supply mother pipe of each refrigerating unit. The branch pipelines of the refrigerating units are respectively led out from different positions on the main circulation pipeline; the negative pressure water return devices are installed on the main circulation pipeline in series, and each negative pressure water return device is located behind the branch pipeline leading-out point of the refrigerating unit corresponding to the negative pressure water return device and in front of the branch pipeline leading-out point of the next refrigerating unit and used for forming an alternate series-connection arrangement structure. Through alternate series arrangement, the dual functions of liquid supply and water return of the main circulation pipeline are achieved, the pipeline layout is greatly simplified, the roadway space occupation is reduced, the installation cost and the leakage risk are reduced, and the system adapts to complex working conditions of mines.

The utility model relates to the technical field of coal separation, in particular to an intelligent raw coal dry separation system which comprises a raw coal bin, the raw coal bin is communicated with a raw coal roller screen through a belt conveyor, the raw coal roller screen is respectively communicated with a slack coal roller screen and a raw coal crusher, and the raw coal roller screen is communicated with the raw coal crusher through a manual separation belt conveyor. The slack coal roller screen is communicated with a mixed coal bunker belt conveyor through a slack coal transfer belt conveyor, and the mixed coal bunker belt conveyor is communicated with a mixed coal bunker through a mixed coal bunker distribution belt conveyor; the slack coal roller screen and the raw coal crusher are communicated with the linear screen, the linear screen is respectively connected with the slack coal transfer belt conveyor and the intelligent dry separator, the intelligent dry separator is communicated with the gangue crusher, and the gangue crusher is communicated with the gangue bin through the gangue bucket elevator. Raw coal is subjected to intelligent dry separation, clean coal dirt band is reduced, the clean coal yield is improved, the clean coal yield is maximized, the quality of the clean coal yield is improved, the photoelectric intelligent dry separator does not need water, manpower is greatly saved, and the production efficiency is improved.

This invention provides a high-pressure filtration device for sealing ring rubber melt, comprising: a machine base; a conveying assembly disposed on the machine base, the conveying assembly including a conveying pipe for conveying the rubber melt; and a filtering assembly including a filter plate inserted on the conveying pipe, the filter plate being provided with at least two sets of filter screens for filtering impurities. This invention, through the cooperation of a first driving assembly and two sets of filter screens, achieves parallel operation of working and cleaning, avoiding the inefficiency of traditional equipment requiring machine shutdown for filter screen replacement. It introduces a specialized bushing assembly, solving the problem of difficulty in maintaining high-pressure sealing after switching in transverse sliding filter plates. Through active compression sealing, it can withstand higher levels of conveying pressure without leakage. The entire filtration, switching, sealing, and cleaning process forms a closed loop, greatly improving the automation level of sealing ring rubber pretreatment.

The utility model provides an efficient and environment-friendly integrated sand making building. The sand making building comprises a sand making device, a high-frequency screen, a wet mixing machine, a fine sand recoverer and a dust collecting system. Wherein the sand making device is composed of a roll crusher and a vertical shaft crusher, materials sequentially enter a hoister, a material guide pipe and a high-frequency screen for classification through a feeding belt, oversize materials return to the sand making device for closed-circuit crushing, undersize materials are sorted into fine sand and finished sand through the winnowing device, and the fine sand is recycled after being treated through the fine sand recoverer. And the finished sand is output after being humidified by the humidifying machine. The dust collection system adopts multi-point negative pressure dust collection, and dust emission is adjusted in real time. According to the utility model, the sand gradation is optimized through the cooperation of the double hosts for crushing, the material returning energy consumption is reduced by combining closed-loop separation, efficient and environment-friendly production is realized by utilizing dynamic winnowing and dust removal, and the technical problems of high loss rate of fine sand, non-uniform gradation and dust overflow in the traditional sand making are solved.

The invention relates to the technical field of hydrogen compression and hydraulic drive, in particular to a hydrogen compressor closed hydraulic system which comprises a hydraulic oil tank, a double-output-shaft drive motor, a closed pump, a hydraulic drive gas supercharger, a four-quadrant pump and an energy accumulator. The closed pump and the supercharger form a closed loop, and oil supplementing and flushing functions are integrated in the closed loop. And the four-quadrant pump is connected to the other end of the motor and is connected with the energy accumulator. Load is monitored in real time through a pressure sensor, in the reversing or low-load stage, a four-quadrant pump is controlled to be in a pump working condition, residual power of a motor is absorbed, and an energy accumulator is charged; and in the high-load compression stage, the four-quadrant pump is controlled to be in a motor working condition, and energy of the energy accumulator is released for auxiliary driving. Throttling loss is eliminated, constant-power operation of the motor is achieved through peak clipping and valley filling of energy, the problem of impact on a power grid is solved, meanwhile, the system structure is compact, and the energy efficiency is remarkably improved.