36results about How to "Affect pollution" patented technology

The invention provides microorganism bacillus subtilis Lys-979 for efficiently and quickly fermenting pig manure and mushroom residues and a technological method for preparing bio-organic fertilizer through fermentation of microorganism bacillus subtilis Lys-979. The preservation serial number of microorganism bacillus subtilis Lys-979 is CGMCC No.11333, according to the pig manure and the mushroom residues fermented through the strain, fermentation base materials are quickly decomposed in 18-22 days, and the physical and chemical indicators meet the new standard of organic fertilizer; on the basis, a functional anti-biological inoculant is compounded, the bio-organic fertilizer with the control function on pest and disease damage of crops is prepared, the problems that at present, pollution is caused by excrement in production and husbandry and waste straw residues, and compost is long in fermentation time and high in cost are fundamentally solved, and the sustainable development of agricultural production is promoted.

The invention discloses a filtering and squeezing unit for filterable materials. The filtering and squeezing unit comprises a distribution pipe (17), which is connected to one or more filtering and squeezing machines (18) through feed valves (13). The filtering and squeezing machine comprises a barrel (8), the upper end of which is connected to the feed valve (13) and the lower end of which is provided with a discharge valve (1). An irregular-shaped filter pipe (9) is arranged inside each barrel (8). A positive blow valve (12) is disposed between the feed valve (13) and the barrel (8). The lower part of the barrel (8) is provided with a back-blow outlet valve (2). According to the invention, multiple materials can be filtered and squeezed at the same time, and the operation is carried out under airtight condition. In addition, filtering effect is good, squeezing efficiency is high, filter cakes can be continuously produced, and the operation can be effectively combined with production activities.

The present invention provides a silicon carbide crystal growth method and device, the method comprising: (1) assembly stage: (2) sublimation stage: controlling a plurality of partitions to rotate between the plurality of partitions and the inner wall of the partition and the cavity There is no gap between them, the first crucible is separated from the second crucible, and the silicon carbide raw material is heated to sublimate; (3) Crystal growth stage: control multiple partitions to rotate between multiple partitions and / or the inner wall of the partition and the cavity There is a gap between them, and the second crucible communicates with the first crucible through the gap, and the heating makes the silicon carbide raw material atmosphere pass through the gap to the seed crystal for crystal growth. By controlling the rotation of multiple partitions, the first crucible is separated from the second crucible, and the sublimated atmosphere of the silicon carbide raw material cannot be transmitted upwards, so as to avoid the formation of defects affecting the crystal quality and damage and pollution to the seed crystal caused by the unstable atmosphere in the early stage of growth. And the separator blocks the heat radiation from the raw material to the seed crystal, avoiding the sublimation of the seed crystal surface caused by the lack of silicon carbide atmosphere supplement during impurity removal.

The invention discloses an online powder detection device based on laser-induced breakdown spectroscopy, belonging to the field of atomic emission spectroscopy detection, comprising: a long metal tube constrained, with a sample inlet and a detection port on the side, and the powder sample enters the tube through the sample inlet Middle; pushing unit, including two pushing sub-units located at both ends of the constrained metal long tube and partially inserted into it; power control unit, providing power for the pushing unit, pushing the pushing sub-unit to move relative to the constrained metal long tube , to extrude the powder sample into a sample column, and push the sample column to the detection port; the spectral detection module uses laser ablation of the sample column to generate an optical signal, and generates the detection result of the sample column according to the spectral information corresponding to the optical signal . The structure of the device is simple, which realizes the rapid preparation and inspection of powder samples. The detection form of the sample column enhances the intensity and stability of the spectral signal, improves the detection accuracy, and satisfies the needs of fast and accurate online detection of powder components in actual production. .

The invention relates to a method for utilizing the embedded drug bottle to feed pesticide to the root of plant. Based on the pest condition, the invention can select the drug amount and the density to dissolve the drug into the bottle, dig the soil to expose the plant root, select the side root, shear and insert it into the bottle, and seal the opening of bottle via plastic, then embed the bottle with root into the ground, cover with soil, and take off the bottle when the drug is out. The invention has simple operation.