46results about How to "Improve Primary Utilization" patented technology

The present invention proposes a method for automatically weighing and assembling cold-pressed recombined bamboo, which includes the following process steps: (1) drying and sorting bamboo bundles soaked in glue; (2) alignment weighing and bundling of bamboo bundles; (3) Automatic stacking of bamboo bundles; (4) Moisture content balance and paving of bamboo bundles. Advantages: the present invention utilizes the existing drying and sorting line of dipped bamboo bundles to carry out on-line weighing, and bundles them, and after bundling, they are automatically stacked by a roller and a lifting device, and the moisture content is balanced, and then the two bundles are Or four bundles are sent into the billet trough, using this process to improve the existing cold-pressed recombined bamboo production technology, optimize its production process, improve the uniformity of cold-pressed recombined bamboo paving, reduce the labor intensity of employees, improve production efficiency and Quality guarantees the healthy development of cold-pressed bamboo recombined bamboo.

The invention discloses a micro-vacuum automatically-balanced filling machine and a filling method. A vacuumizing system is arranged on the filling machine; a plurality of vacuumizing silicone tubes are distributed on the side wall of a material cylinder of the filling machine, two ends of each vacuumizing silicone tube are respectively located on the inner and outer sides of the material cylinder, and the end parts, located on the inner side of the material cylinder, of the vacuumizing silicone tubes are connected with a central vacuumizing pipe of a filling valve; vacuumizing suction disc assemblies are respectively arranged at a bottle feeding workstation and a bottle discharging workstation on the material cylinder, the end parts, located on the outer side of the material cylinder, of the vacuumizing silicone tubes are communicated with the vacuumizing suction disc assemblies, and each vacuumizing suction disc assembly is connected with a negative pressure buffer tank and a vacuum pump through a vacuum tube. The filling method comprises the following steps that the whole vacuumizing system is in a negative pressure state; when the filling machine rotates, packaging bottles on the bottle feeding workstation are vacuumed by virtue of the vacuumizing system after packaging bottles are fed to the bottle feeding workstation, and then opening the filling valve is opened, and sauce is filled; after the packaging bottles are fed in and discharged out of the bottle discharging workstation, the filling valve is closed, and then residual sauce at bottlenecks of the packaging bottles is extracted by virtue of the vacuumizing system.

The invention discloses a preparation process of ultralow-viscosity dimethyl silicone oil. Low-molecule separation of dimethyl silicone oil is performed in a rectification manner, high-boiling-point components can be reserved to the greatest extent and low-boiling-point components can be separated to the greatest extent under the set rectification conditions, the content of octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane and other molecules in the ultralow-viscosity dimethyl silicone oil with the higher boiling point can be further better controlled, application requirements in certain special high-end application fields such as the personal care industry can be met, besides, ultralow-viscosity linear dimethyl silicone oil with the lower boiling pointer can be captured from rectification fractions, and the one-time yield of a reaction is increased.

The invention relates to a polysilicon production process and a production system used in the process. It includes mixing refined trichlorosilane with a concentration of more than 99.99% and hydrogen at a hydrogen:refined trichlorosilane molar ratio of 4 to 3:1 as a mixed gas feed into the CVD reduction furnace, and the mixed gas feed passes through the Bubble carburetor, heat exchanger for inlet and outlet, CVD reduction furnace main furnace and CVD reduction furnace auxiliary furnace connected in series; the final tail gas discharged from the CVD reduction furnace auxiliary furnace enters the CVD reduction furnace main furnace after heat exchange, and then enters the CVD reduction furnace main furnace. The surface of the silicon core in the furnace reacts to form polysilicon, and its by-product is intermediate tail gas; the intermediate tail gas is mixed with supplementary refined trichlorosilane gas and then enters the auxiliary furnace of the CVD reduction furnace, where the silicon core surface in the auxiliary furnace of the CVD reduction furnace generates The reaction produces polysilicon, and its by-product is the final tail gas; after the final tail gas comes out of the furnace, it exchanges heat with the mixed gas feed and then enters the reduction tail gas recovery system. The process and production system can produce high-quality electronic-grade polysilicon with high efficiency and low cost.