4results about How to "Avoid resource loss" patented technology

The present application relates to steel and non-ferrous smelting slag comprehensive recovery and iron-making resource utilization comprehensive utilization technical field, disclose a kind of copper slag efficient iron-making method based on magnetic separation pretreatment, comprising: to molten iron-silicate base waste slag input by calcium carbide, sodium fluoride and phosphorus component consisting of conditioning agent, using sodium fluoride to build liquid diffusion field exposure reduction interface, induce calcium carbide and iron silicate in situ reduction to generate metal iron core;Heat treatment promotes iron core polymerization growth;Gradient cooling, using phosphorus component induces silicate matrix crystal transformation to generate expansion stress and break matrix;Grinding powder and weak magnetic separation, extract magnetic enrichment product, the present application breaks iron-oxygen-silicon chemical bond, realizes the conversion of combined state iron to independent metal state, achieves iron and gangue phase decoupling, using endogenous stress induction self-pulverization, reduce grinding energy consumption, output high-grade iron powder and simultaneously remove sulfur zinc impurities.

The application relates to the technical field of industrial waste heat recovery, in particular to a centrifuge heat pump system for preparing high-temperature steam by using negative pressure steam, which comprises a flash tank and a heat pump unit. Specifically, the heat pump unit comprises a compressor for increasing the pressure of refrigerant, a condenser for making the pressurized refrigerant release heat and condense, a throttling device for reducing the pressure of the condensed refrigerant, and an evaporator for making the reduced-pressure refrigerant absorb heat and evaporate; the compressor, the condenser, the throttling device and the evaporator are connected through pipelines to form a refrigerant circulation system; a low-temperature heat source input port of the evaporator is connected with an external negative pressure steam source, and the evaporator is also used for condensing steam into liquid and outputting the liquid into the flash tank at least; a high-temperature heat source input port of the condenser is connected with a saturated liquid outlet of the flash tank, and a high-temperature heat source output port of the condenser is connected with a feeding port of the flash tank. The application has the effects of reducing energy waste and realizing efficient utilization of negative pressure steam.

The utility model relates to the technical field of rubber cutting devices, in particular to a cutting device which comprises a machining table, the machining table comprises a table plate, conveying wheel rollers are installed at the top end of the table plate at equal intervals, a cutting assembly is installed on the side of the top end of the table plate and comprises a pile frame, and a hydraulic cylinder is installed at the top end of the pile frame. The output end of the hydraulic cylinder is connected with a shaft barrel, the bottom end of the shaft barrel is connected with a cutting knife, the outer side of the shaft barrel is provided with a downward pressing assembly, the downward pressing assembly comprises a hoop ring fixed to the surface of the shaft barrel, one side of the hoop ring is connected with a beam plate, and the bottom end of the beam plate is in butt joint with a pressing plate through a movable part. The outer side of the shaft barrel is fixed through the hoop ring, when the output end of the hydraulic cylinder drives the hoop ring to move, the hoop ring can be matched with the beam plate to drive the movable part to move downwards, then the movable part pushes the pressing plate to move, the pressing plate abuts against rubber in one step through the shaft barrel, auxiliary pressing and fixing are conducted on the rubber before cutting, and stability of the rubber during cutting is guaranteed.

The utility model belongs to the technical field of agriculture and forestry crop processing equipment, and provides a eucommia ulmoides seed collecting device which comprises a material sucking pipeline, a sorting cylinder, a sorting pipeline, a centrifugal machine, a collecting pipeline, an induced draft fan and a discharging pipeline. The material suction pipeline is connected with the sorting cylinder, the two ends of the sorting pipeline are connected with the sorting cylinder and the induced draft fan respectively, the centrifugal machine is arranged below the sorting cylinder, the collecting pipeline is arranged below the centrifugal machine, and the discharging pipeline is connected with the induced draft fan. And the sorting pipeline is a Z-shaped pipeline, is provided with a secondary sorting pipeline and is used for sorting and collecting the materials in the sorting pipeline again. The eucommia ulmoides seed collecting device can screen and separate seeds and shells of husked eucommia ulmoides seeds and collect the eucommia ulmoides seeds, is high in collecting efficiency, good in effect and low in impurity content, does not need to remove impurities and dust again, does not damage the eucommia ulmoides seeds, effectively guarantees the collecting yield and the collecting quality of the eucommia ulmoides seeds, and is suitable for popularization and application. And meanwhile, the manual labor intensity and the production and processing cost are reduced.