47results about How to "Meet the environmental protection requirements of energy saving and emission reduction" patented technology

The invention discloses a polyphenylene sulfide oligomer recovery method. The method comprises the following steps: S1, collecting a filtrate and a washing liquid, and storing the filtrate and the washing liquid in a filtrate mixing storage tank to form a mixed liquid; S2, pumping the mixed liquid into a mixing filter, and carrying out filtering to form an oligomer filter cake; S3, collecting theoligomer filter cake at the bottom of the mixing filter into a primary-washing stirring tank, adding washing water, carrying out stirring and washing, and allowing the filter cake to enter a primary-washing filter to undergo filtering so as to form a primary-washing oligomer; S4, collecting the primary-washing oligomer at the bottom of the primary-washing filter into a secondary-washing stirring tank, adding washing water, carrying out stirring and washing, and allowing the filter cake to enter a secondary-washing filter to undergo filtering so as to form a secondary-washing oligomer; and S5,collecting the secondary-washing oligomer at the bottom of the secondary-washing filter into a mixing bin, uniformly adding the secondary-washing oligomer into a dryer through a feeder, and performingheating and drying to obtain a recovered oligomer product. According to the method, the oligomer with a certain economic value in the filtrates are recycled through filtering, washing and drying, meanwhile, solid waste emission is reduced, and the environmental protection requirements for energy conservation and emission reduction are met.

The invention provides an automatic patrol-inspection and cleaning device for an ultrahigh-pressure four-split power line. The device comprises a power supporting module, a primary cleaning module, travelling modules, a secondary cleaning module and a control module, wherein the power support module is the center, the travelling modules sleeve the ultrahigh-pressure four-split power line respectively; a side baffle, facing the center of the device, of the travelling module is connected with the power supporting module, and the primary cleaning module penetrates through the outward side wall ofthe travelling module; and the secondary cleaning module is arranged between the two travelling modules on the same ultrahigh-pressure power line. The cleaning modules are designed on the basis of the ultrahigh-pressure four-split power line, the running efficiency is improved, the materials are saved, the load of the ultrahigh-pressure power line is alleviated and the economy of the device is improved.

The invention relates to a biomass gasification device and a gasification technology. The device comprises a blower, a gas generator, a gas purifying device, a pressure vessel and a user end gas transmission pipeline network, and is characterized in that the device further comprises a water ring compressor and a moisture separator, and the gas purifying device comprises a cyclone separator and a composite filter device. The invention transforms low heat value biomass materials and wastes to high heat value clean and environment-friendly biomass gas, has the advantages of simple technology, scientific design, and energy conservation and emission reduction; and the invention has a wide application range, particularly causes biomass wastes in rural areas to achieve gasification and channelization as soon as possible, and enables civilians in the rural areas to use clean and convenient gas as the same as urbanites.