3results about How to "Batch stable" patented technology

The application provides a preparation method of sanshool, and belongs to the field of natural product separation and purification, which takes dried Zanthoxylum bungeanum Maxim peel as raw material, adopts supercritical CO2 extraction, molecular distillation and solvent crystallization combined process, utilizes solubility difference of two isomers to realize preferential crystallization of hydroxyl-beta-sanshool, and through secondary recrystallization, HPLC≥98% monomer can be obtained; then through homogenization-petroleum ether extraction impurity removal and alcohol crystallization, HPLC≥98% hydroxyl-alpha-sanshool can be obtained. The preparation method has low cost, simple operation, batch stability and large-scale production, solves the problems of difficult separation, low purity, small processing capacity and high cost in the prior art, realizes synchronous and efficient preparation of two pungent monomers, greatly improves the utilization rate and added value of Zanthoxylum bungeanum Maxim resources, and supports high-value utilization of Zanthoxylum bungeanum Maxim industry.

This invention discloses a method for adsorbing lead from molten precious metal alloys, comprising the steps of melting the precious metal material; using an adsorbent to capture lead; and casting ingots. Adding this step to the production process effectively removes lead, offering advantages such as simple operation, significant results, batch stability, and environmental friendliness. It achieves the goal of fixing lead in a solid, preventing the formation of gaseous emissions that would cause environmental pollution. Testing shows that the lead content in the precious metal alloy ingots is less than 0.005%. Furthermore, it combines medium-frequency furnace heating with historical big data to obtain the optimal heating strategy, thereby ensuring the automation and intelligence of the heating process, offering advantages such as improved heating quality and reduced energy consumption.

This utility model addresses the issue of waste removal devices using an air-blowing mode, where waste products may fail to enter the waste channel when the product width or paper weight is too large. To resolve this, this application designs a waste removal device using a box-tapping mode, effectively preventing waste products from flowing into the bulk shipment due to excessive paper weight or width. It provides a waste removal device that effectively improves the waste detection rate. The device is installed in the existing empty area of ​​the detection mechanism, utilizing the existing gate-shaped frame. The waste removal device includes: a waste removal plate with a 90-degree flange at the first end and a main rotating shaft fixed at the second end; the main rotating shaft is hinged to the gate-shaped frame; a main telescopic cylinder with a second block on its telescopic end; a first block with two circular through holes detachably connected to the main rotating shaft, and the second block hinged to the second through hole; and a limiting head located below the second block.