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91 results about "Pack filling" patented technology

Preparation method for polymer matrix micron/nanometer packing filling modification compound premix particles

The invention relates to a preparation method for polymer matrix micron / nanometer packing filling modification compounding premix particles. The preparation method comprises the following steps: dissolving a water-insoluble polymer matrix into a first water-soluble solvent to obtain a homogeneous polymer solution; dispersing the micron / nanometer packing into a second water-soluble solvent, and conducting stirring, heating, and ultrasonic treatment, adding a solubilizer or a coupling agent so as to obtain homogeneous micron / nanometer packing dispersing liquid; adding the homogeneous micron / nanometer packing dispersing liquid into the homogeneous polymer solution, and mixing uniformly to obtain a homogeneous solution system solution; dropwise adding the homogeneous solution system solution into a container filled with deionized water, wherein the dropwise-added liquid is rapidly coagulated into round particles with uniform particle diameters; collecting the round particles in the container and cleaning repeatedly; drying to obtain the polymer matrix micron / nanometer packing filling modification compound premix particles. According to the method provided by the invention, the method is simple, the cost is low, the agglomeration of the nanometer packing in the polymer matrix can be reduced effectively, the infiltration adsorption effect of the polymer matrix on inorganic packing is improved, the interface bonding strength of the polymer matrix and the inorganic packing is enhanced, and the filling modification effect is improved.
Owner:TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI

Water purifying method of uniform flow constructed wetland

The invention discloses a water purifying method of a uniform flow constructed wetland. A constructed wetland is established; a water inlet end is arranged on one wall of the wetland pool, and a water outlet end is arranged on the other wall of the wetland pool; the water inlet end and the water outlet end are respectively provided with a water distributing zone and a water gathering ground, which are filled with cobblestones with a particle size of 30-50mm; a main body filling material zone comprises, from top to bottom: a first layer filter pack filled with a quartz sand filling material with a particle size of 0.1-1 mm, a second layer filter pack filled with a quartz sand filling material with a particle size of 0.1-3mm; a third layer filter pack filled with a quartz sand filling material with a particle size of 1-3 mm; a fourth layer filter pack filled with a quartz sand filling material with a particle size of 1-5 mm; a fifth layer filter pack filled with a quartz sand filling material with a particle size of 3-7 mm; and humidogene emergent aquatic plant plants are planted on top of the first layer filter pack. The invention can be used in treatment of household sewage in cities and towns and industrial wastewater of food processing industry and slaughter industry, etc., so as to avoid current short flow and formation of a dead zone and remove pollutants efficiently.
Owner:恒晟水环境治理股份有限公司

Gravel pack filling monitoring system and monitoring method based on magnetic media

ActiveCN103244081AImplement duplicate detectionFluid removalMagnetic mediaMonitoring system
The invention relates to a gravel pack filling monitoring system and method. The gravel pack filling monitoring system comprises a magnetic particle container, a gravel pack container, a gravel pack mixer, a sand-carrying fluid container, a sand mixing truck, a high-pressure pumping set, a data acquisition and processing center, a ground magnetometer, a magnetic particle conveying pipeline, a gravel pack conveying pipeline, a evenly-mixing gravel pack conveying pipeline, a sand-carrying fluid conveying pipeline, a first sand-mixing fluid conveying pipeline, a second sand-mixing fluid conveying pipeline and a ground magnetometer and data acquisition and processing center communication pipeline, wherein the ground magnetometer monitors magnetic parameter changing from the ground, the data acquisition and processing center is connected with the data acquisition and processing center communication pipeline through the ground magnetometer, and the data acquisition and processing center collects and stores the measured information of the ground magnetometer and calculates and displays the gravel pack distribution state. The gravel pack filling monitoring system can track the transporting and distributing state of gravel pack in a sand-prevention well section from the ground, the well and/or an adjacent well during gravel pack filling and can achieve repeated detection on gravel pack distribution after production of the sand-prevention well.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Silicon carbide synthesis method

The invention discloses a silicon carbide synthesis method. The silicon carbide synthesis method includes procedures of filling packing, electrifying and heating, keeping constant power, naturally cooling and discharging. The silicon carbide synthesis method is characterized in that at least a graphite slurry layer is smeared on a burner graphite electrode on one side of a furnace heating cavity before conduction graphite powder is filled in the packing filling procedure, and then packing filling procedure for the conduction graphite powder is carried out. Compared with the prior art, the silicon carbide synthesis method has the advantages that melt can be prevented from being adhered on the surface of the graphite electrode, the surface of the graphite electrode can be cleaned quite easily before next loading, graphite powder and the melt which are smeared on the surface of the graphite electrode can be completely removed only by means of lightly scraping the surface of the graphite electrode by the aid of a scraper, further, water is used as a bonding agent during smearing and volatilizes when heated, conductivity between the graphite electrode and the graphite powder of a furnace core is unaffected, the surface of the graphite electrode cannot be damaged, accordingly, the service life of the graphite electrode is greatly prolonged, maintenance frequency is reduced, production efficiency is improved, and production cost is lowered.
Owner:石河子市丰拓硅材料科技有限公司
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