4results about How to "Equipment is small" patented technology

The utility model discloses a carbon dioxide combined dehydration system, which relates to the field of carbon dioxide dehydration and comprises a dehydration line of a filter separator, a freezing dryer, a first separator, a dehydration tower and an outlet filter which are sequentially connected. The regeneration line is connected to the output end of the dehydration line and is communicated with a compressor; the compressor is communicated with a cold medium inlet of a heat exchanger; a hot medium outlet of the heat exchanger is communicated with a heater; the heater is communicated with a bottom inlet of a regeneration tower; and the condenser is connected with the second separator. The dehydration mode that low-temperature pre-cooling is conducted firstly, separation is conducted firstly, and then fine dehydration is conducted is adopted, the dehydration depth is higher, regenerated gas is taken from dehydrated purified gas, and the drying capacity is higher.

This invention relates to the field of pyrolysis technology, and in particular to a pyrolysis apparatus and method. The pyrolysis apparatus includes a chain drive mechanism, a flexible reaction net, a scraper mechanism, and a cleaning mechanism. The chain drive mechanism includes a pair of parallel and horizontally placed flat annular outer plate chains and a pair of inner plate chains, along with their driving and supporting components. The flexible reaction net is divided into inner and outer layers, including multiple pairs of wing rods spaced apart on the two pairs of plate chains and flexible rods extending inclined between the plate chains and intersecting each other. The scraper mechanism has multiple flexible scrapers. One end of the cleaning mechanism can contact and clean the outer layer of flexible rods. This invention enables direct and efficient pyrolysis of large-sized strip-shaped organic waste, solving the technical problems of existing pyrolysis devices for treating strip-shaped organic waste, such as easy softening, adhesion, and blockage of raw materials, severe coking and slagging, and high pretreatment costs.

The invention discloses a desulfurization and denitrification mixed reaction device, and relates to the technical field of flue gas treatment.The desulfurization and denitrification mixed reaction device comprises a case, a condensation dust removal chamber is formed in the case, an ozone reaction chamber is formed in the upper side of the condensation dust removal chamber, a washing chamber is formed above the ozone reaction chamber, and a wastewater collection chamber is formed below the condensation dust removal chamber; a water storage chamber is formed in one side of the wastewater collection chamber, a medicine storage chamber is formed in one side of the water storage chamber, a solution blending chamber is formed in one side of the medicine storage chamber, a water pumping chamber is formed in one side of the condensation dust removal chamber, an ozone generation chamber is formed above the water pumping chamber, and a liquid pumping chamber is formed above the ozone generation chamber; one side of the case is fixedly connected with an air inlet pipe, the air inlet pipe penetrates into the outer wall of the case to communicate with the condensation dust removal chamber, and the device has the advantages of being high in practicability, integrating desulfurization and denitrification and being high in desulfurization and denitrification rate.

A method for recovering hafnium and impurity metals from a hafnium-containing waste residue, comprises dissolving the waste residue in sulfuric acid and ammonium sulfate to obtain an acidic solution, adjusting acidity of the acidic solution, and adding a complexing agent to obtain a material solution; conducting extraction to obtain a hafnium-loaded organic phase and an impurity metal ions-containing aqueous phase; subjecting the hafnium-loaded organic phase to purification, stripping, precipitation, and filtration, and washing and burning to obtain hafnium oxide; precipitating the impurity metal ions-containing aqueous phase, washing a resulting precipitate to remove the complexing agent; dissolving a resulting precipitates of the impurity metal ions in sulfuric acid, and adjusting acidity of a resulting solution to obtain a solution of the impurity metal ions; extracting the solution of the impurity metal ions to obtain an impurity metal ions-loaded organic phase, purifying and stripping to obtain oxides of the impurity metals. In a hafnium oxide product obtained by the recovery method of the present disclosure, purity of hafnium oxide stably reaches 99.99% or more, or even reaches 99.999%, or 10 ppm or lower, and purity of oxides of impurity metals is greater than 97%.