46results about How to "Reduce material selection requirements" patented technology

The invention provides a method for improving the shale oil hydrorefining denitrification rate, and relates to a whole fraction shale oil hydro-denitrification process. The method aims at solving the technical problems that in the existing method for producing diesel oil through shale oil hydrorefining, the stability of a diesel oil product is low, and the operation running period of a hydrorefining catalyst is short. According to the method, a raw material pretreatment unit 1, a raw material pre-fractionation unit 2, a primary hydrorefining reaction unit 3, a secondary hydrorefining reaction unit 4 and a product fractionation unit 5 are used. When the method provided by the invention is used for processing shale oil, the light oil yield is high; the nitrogen content of the diesel oil product is low; the chromaticity and the stability conform to national V standard requirements; the goal of light oil product deep denitrification can be achieved; the service life of the hydrorefining catalyst is prolonged; the operation running period of the catalyst is improved. A main product of the method is hydrorefining diesel oil; byproducts are high-value LPG and hydrogenated naphtha; heavy shale oil and hydrogenation tail oil thrown out in the technical process can be further processed and used in a downstream device. The method provided by the invention belongs to the field of whole-fraction shale oil deep processing.

The invention discloses an installation device for outside rear-view mirrors of an automobile. The installation device has the advantages of low requirement on selecting buckling materials, less parts manufacturing process, high efficiency, easiness in disassembly and installation, good sealing performance, firmness in installation and low mould cost. The installation device comprises a decorative cover, a positioning column and a clamping buckle, wherein the positioning column is arranged at the end part of the decorative cover, the clamping buckle is arranged in the middle of the decorative cover, and the decorative cover, the positioning column and the clamping buckle are in integral injection molding.

The present invention provides a circuit protector, which comprises: a casing, a first lead-out end and a second lead-out end respectively drawn out from the casing, a switch assembly located in the casing, a protection body and a heating element; the switch The assembly and the heating body are connected in parallel to the first lead-out end and the second lead-out end; the protection body controls the opening and closing of the switch assembly; the protection body is a high-expansion filler. The circuit protector of the invention can be protected many times and the resistance in the protector is stable.

The invention discloses an energy-saving submerged combustion type gasifier, comprising a blower, an air duct, a burner, a combustion chamber, a flue gas distributor, a water tank, a heat exchange tube bundle, a weir flow box, a lye tank, a chimney and a gas Liquid separator and chimney regulating valve; the flue gas distributor includes a collecting pipe and a bubbling pipe, one end of the bubbling pipe is connected with the collecting pipe, the bubbling pipe is located under the heat exchange tube bundle, and at least one row of jets is arranged on the top of each bubbling pipe Holes; the weir box is supported by a bracket fixed at the bottom of the water tank, and the heat exchange tube bundle is suspended and supported by the hanging support structure on the top of the weir box, and is immersed in the water bath in the water tank; a gas-liquid separator is installed inside the chimney; the chimney The lower part is provided with a bypass, the bypass is connected with the burner through the first branch, and the bypass is connected with the flue gas distributor through the second branch. The invention has good heat exchange effect and high thermal efficiency, makes the gasification device more compact in structure, small in floor space, saves energy and cost, and is especially suitable for the LNG receiving station with the amount of gasification in processing.

The invention discloses a combined comb, which comprises a handle and a tooth component; the handle comprises a handle main body and a splicing groove, wherein the splicing groove is formed in the handle main body, and forward-opened; the tooth component is a comb tooth component or a fine tooth component; and the tooth component comprises a root board piece and a group of comb teeth connected to the root board piece, the root board piece of the tooth component is mutually spliced with the splicing groove of the handle, the root board piece of the tooth component is in interference fit with the splicing groove of the handle, and the upper and lower lateral surfaces of the root board piece of the tooth component are in contact with the corresponding walls of an installation groove. The handle is matched with the comb tooth part simply and effectively; and when the comb teeth are damaged, the tooth component can be timely changed, so that the service life of the comb is prolonged.

The invention relates to glyphosate mother liquor catalytic oxidation treating equipment and process. The glyphosate mother liquor catalytic oxidation treating process comprises the following steps: after mixing a copper nitrate.gibbsite solution serving as a catalyst, and a glyphosate mother liquor by virtue of a static mixer, carrying out a catalytic reaction under an oxidation system with the temperature of 210+ / -5 DEG C and the pressure of 4MPa, wherein the oxidation system is a circulation loop comprsing a tubular heat exchanger, a tube heat exchanger, a medium-pressure heat exchanger, a coil heat exchanger and a tube heat exchanger. With the adoption of the glyphosate mother liquor catalytic oxidation treating equipment and process, the realistic problems of incomplete oxidation reaction, high temperature and pressure of the oxidation reaction, large risk, large corrosion of the reaction to the equipment and the like of the glyphosate mother liquor oxidation reaction are solved; after a homogeneous catalyst is added, the reaction rate is greatly increased, the oxidation reaction is complete, the temperature and the pressure of the device system are lowered, the equipment corrosion condition is improved, and a novel perfect and reliable process is provided for ECO treatment of the glyphosate mother liquor.