33results about How to "Reduce the probability of secondary pollution" patented technology

The invention discloses a high-quality harmless utilizing method of a hyperaccumulator. The high-quality harmless utilizing method comprises the following steps: smashing and drying the hyperaccumulator, and sieving through a sieve of which the density is 100 meshes; carbonizing at a carbonization temperature being 450 to 550 DEG C and in carbonization time being 25 to 35 minutes, thus obtaining acarbonized material; immersing the carbonized material by using an alkaline solution of which the mass percentage is 45 to 55 percent; drying at 90 to 120 DEG C for 10 to 15 hours after immersing for20 to 28 hours, thus obtaining an amorphous particulate carbon block; activating the amorphous particulate carbon block into an activated carbon coarse product under a nitrogen atmosphere, wherein the activating temperature is 750 to 850 DEG C, and the activation time is 25 to 35 minutes; drying for 10 to 15 hours, thus obtaining metal-containing activated carbon with a catalytic effect; grindingthe activated carbon, thus obtaining an activated product HA-AC; adding 5 to 15 percent of the activated carbon product HA-AC to biomass or other reaction raw materials; putting a swelled material ina supercritical reaction kettle, and carrying out sealing reaction at the reaction temperature being 380 to 600 DEG C and the reaction pressure being 22.1 to 30 MPa, thus obtaining a hydrogen-rich gas. The high-quality harmless utilizing method disclosed by the invention has the advantages that additional metal loading is not required, a complicated preparation technology and a longer preparationperiod are not required, heavy metal can be fully stabilized, and secondary pollution can be avoided.

The invention discloses a grabbing device. The grabbing device comprises a mounting component, rubbing assemblies and material collecting assemblies. Each rubbing assembly is mounted on the mounting component in a liftable mode and is further provided with at least two sets of rubbing components. The output ends of all the rubbing components are arranged in a back-to-back mode, and all the rubbingcomponents can be stretched and retracted in the laminating plane direction of workpieces. The material collecting assemblies are mounted on the corresponding rubbing components and are further provided with material collecting components. All the rubbing assemblies can drive the corresponding material collecting components to be opened and further raise the workpieces. The invention further provides a transfer mechanism. The transfer mechanism comprises a receiving assembly and the grabbing device. The transfer mechanism can be well matched with the grabbing device to carry separated non-woven fabrics, manual work can be replaced completely in the whole process, contact between people and films in the film detaching and bagging processes is reduced, secondary pollution probability of film fabrics is lowered, production efficiency and product safety and sanitation levels are effectively improved, stability is good, precision is high, the structure is compact and novel and the runningspeed is high.

The invention discloses a high-purification automatic impurity-removing and tea-sterilizing process comprising the following steps: charging, fine processing, weighting and packaging. In the fine-processing step, tea is primarily screened by adopting a winnowing mode and residual impurities in the tea are removed by using a manual-selection mode; aroma-extracting and sterilizing working procedures are set after the manual-selection step: tea moisture is removed, tea aroma is improved and bacteria in the tea are killed; far infrared rays are adopted to bake and heat the tea so as to greatly improve the tea quality; meanwhile, the far infrared rays have the thermal effect and the biological effect, and keep the activity of the tea and the nutrition and the luster of food to a maximum extent; and the automatic processing degree is high. The invention has the advantages of intelligently controlled technological process, compact connection, strong continuity, effectively controlled secondary pollution, little manpower consumption and high tea-making efficiency.