8545 results about "Stover" patented technology

The invention discloses a tangential-longitudinal axial type grain combine harvesting and bundling duplex operation machine which comprises a grain cutting and conveying system, a seed threshing and separating system, a seed cleaning device, a seed collecting and storing system, a straw compressing and bundling device, a chassis walking system and a driving operation system. When the duplex operation machine harvests grain in the field, firstly, the grain cutting and conveying system cuts stalks of grain and conveys the grain to the seed threshing and separating system, straws where seed threshing and separating are conducted are compressed and bundled through the straw compressing and bundling device, seeds obtained through threshing are cleaned through the seed cleaning device, and seeds obtained through cleaning are conveyed to a grain tank through the seed collecting and storing system. The duplex operation machine can meet the requirements for harvesting seeds of rice and wheat and compressing and bundling threshed straws, and has the advantages of being high in work efficiency, stable in work performance, simple in work procedure and capable of saving time and labor.

A pulping process comprises using a high concentration of anthraquinone (AQ). The pulping process is capable of providing a pulp having low Kappa number with unexpectedly high strength. The pulping process can use wood or non-wood fibers (e.g., bagasse and corn stover) to provide pulp having good papermaking quality. The method for pulping a fiber comprising cooking a first mixture comprising the fibers, water, an alkali, and a delignification selectivity enhancing chemical for a cooking time and at a cooking condition sufficient to form a first pulp having a desired Kappa number of about 15 or less, and strength parameters that are sufficient for papermaking, where the starting material prior to cooking has a Kappa number of 60 or greater.

The present invention relates to multi-functional biomass carbon fertilizer produced by using biomass carbon from straws and kitchen waste, and belongs to the technical field of organic and inorganic compound fertilizer. The fertilizer mainly comprises the following components, by weight, 15-30% of biomass carbon, 25-35% of nitrogen fertilizer, 15-25% of phosphorus fertilizer, 15-25% of potassium fertilizer and 2-4% of clay, wherein the total nutrient weight percentage of the prepared fertilizer is 35-42%, the organic matter content is 15-20%. The preparation method comprises the following steps: crushing the biomass carbon; screening the crushed biomass carbon by using a 1 mm sieve; uniformly mixing the screened biomass carbon, the nitrogen fertilizer, the phosphorus fertilizer and the potassium fertilizer; then mixing the clay to the resulting mixture; carrying out pelletizing by a steam drum, drying and screening to prepare uniform particles with the particle sizes of 2-3 mm. According to the present invention, the resource utilization of the waste can be effectively realized; the discharge of nitrous oxide of the soil can be significantly reduced; the fixed carbon content in the soil can be improved; the soil bulk density can be regulated; the nitrogen utilization efficiency of the crop can be increased; the yield and the quality of the crop can be substantially improved.