44results about How to "With reusable" patented technology

A composite Cu-Mn oxide catalyst used for the liquid-phase oxidization of toluene under existance of molecular oxygen is prepared from the metallic oxides, acidic oxides, alkaline oxides, or others of Cu, Mn and others chosen from Co, Zn, Ni, Cr, Fe, Ce and V through deposition. It has high oxidizing activity, selectivity and stability.

The invention relates to thermocouple lead sealing equipment, which is characterized in that one end of a hollow joint is connected in container wall, and the other port thereof is internally provided with a hemispherical sealing face mechanism composed of a thermocouple probe, a nut, a hemispherical face head and a sealing adhesive layer hole, wherein, one end of the hemispherical face head is internally provided with the sealing adhesive layer hole; the other end thereof is the hemispherical face head; the port of the hollow joint is internally provided with a sealing face sealed with the hemispherical face head of which the root part is provided with a step; after the hemispherical face head step is installed in the step-slot of the nut, the screw thread at the other end of the nut is connected on the hollow joint, so that the probe of the thermocouple probe penetrates the sealing adhesive layer of the hemispherical face head and exposes outside the end face of the hollow joint via a hollow hole in the hollow joint; and the adhesive layer for fixing the thermocouple probe is filled in the sealing adhesive layer. The thermocouple lead sealing equipment of the invention has the advantages of reasonable design, compact structure, simplicity and practicability, good seal performance, big loading capacity, reusability, convenient assembly and disassembly and very convenient use and the like.

The invention discloses a preparation method of a reprogrammable driving micro-column array. The preparation method comprises the steps of dripping light-cured high-elasticity resin onto a template with a regular micron-sized column cavity array to enable the resin to permeate into a column cavity of the template; punching a punching die with the regular micron-sized micro-column array onto the template; enabling the light-cured resin between the template and the stamping die to react and be cured through illumination, and curing the residual resin between the column cavity and the micro-column into a round sheath shape; removing the punching die from the template to obtain a resin shell with a regular micron-sized round sheath-shaped cavity array; dripping the composite resin mixed with the magnetic nanoparticles onto the resin shell so as to enable the composite resin to permeate into the cavity array of the resin shell; and covering the resin shell with a PET substrate, combining the substrate with the resin shell, and stripping from the template to obtain the liquid core/solid shell magnetic micro-column array.

The invention relates to an intelligent illumination luggage case. The luggage case comprises a body (1), a telescoping pull bar (2), and at least two rollers (3), and also comprises a control module (5), and following components that are connected to the control module (5) individually: an optical sensor (10), a power supply (6), an acceleration sensor (7), a gyroscope (8), four light sources (4), and at least two roller rotation detection sensors (9). Through the technical scheme mentioned above, the intelligent illumination can be achieved, the illumination can be automatically and intelligently carried out in a dark space, so people do not need to find an illumination tool, and thus the luggage is convenient to use.

The invention discloses a conjugated porous polymer, a preparation method thereof, and an application thereof in imine preparation through photo-catalyzed oxidation of primary amine. The synthesized novel D-phi-D type conjugated porous polymer has a large specific surface area, high chemical stability, and thermal stability. The provided polymer can mildly catalyze the oxidation of primary amine to prepare imine under irradiation of visible light; the conversion rate of primary amine can reach 90% or more, and the selectivity of imine reaches 95% or more. The metal-free heterogeneous catalystis easy to separate and recover, and can be repeatedly used. The product imine is easy to purify. The reaction conditions are mild. The catalytic effect is good. The substrate application range is wide. The imine selectivity is high. The catalyst can be recovered. The designed D-phi-D type conjugated porous polymer has a wide application prospect in imine preparation through oxidative coupling ofprimary amine.

The invention discloses a blowout prevention device and method for well repair of a pumping well and belongs to a method for preventing well blowout in an oil field well repair task. The blowout prevention device is connected between a pump cylinder of an oil well pump and a fixing valve to achieve a blowout prevention effect; when gravities of a piston and a sucker rod of the oil well pump are pressed, the bottom surface of the piston is compressed on a compression head 1; on-off action is realized by using an interaction of oblique tips and oblique surfaces of a movable pressing claw 4 and a rotary pawl 6; due to a special structure on an inner cylinder of the device, an oil inlet manner is changed; a bottom oil inlet manner is changed into a side oil inlet manner; influence on switch-on of the blowout prevention device when underground pressure is excessive is overcome; and a success rate of the blowout prevention device is increased.A seal section between a sliding sleeve and the inner cylinder is not made of the traditional rubber flexible material, minimum clearance fit between metals is employed, and the blowout prevention device further has the characteristic of reusability.The method is simple to apply, flexible to operate, low in cost, high in sealability and sand resistance and energy-saving, protects an environment and can realize a pressure balance task.

The invention belongs to the technical field of dye pollution and environment repairing, and particularly relates to a photocatalytic titanium dioxide, graphene oxide and straw composite adsorbent anda preparing method and application thereof. The composite adsorbent is prepared by using titanium dioxide, graphene oxide and straw core powder as the raw materials and making titanium dioxide adsorbed to the surfaces of graphene oxide and the straw core powder through self-assembly. The prepared photocatalytic titanium dioxide, graphene oxide and straw composite adsorbent is a novel biomass composite and is simple in preparing process; cationic dyes can be efficiently removed under the small addition amount of the adsorbent; the titanium dioxide, graphene oxide and straw composite is adoptedas the adsorbent for the first time, the removal rate of the cationic dyes is high, the adsorption effect is excellent, the adsorption process is simple and easy to implement, separation is convenient, and no secondary pollution is caused after adsorption; the prepared adsorbent has a photocatalysis function and can degrade the cationic dyes so as to be repeatedly used.

The invention relates to a biological dechromizing method, and provides a biological dechromizing medium. The medium comprises a pannonibacter phragmitetus LSSE-09 strain and polyethyleneimine-modified super-paramagnetic nanoparticles which are adsorbent mutually, wherein the collection number of the strain is CGMCC No.3512. A preparation method of the biological dechromizing medium comprises the following steps of: (1) preparing the olyethyleneimine-modified super-paramagnetic nanoparticles; (2) culturing dechromizing biological bacteria; and (3) preparing and collecting the biological dechromizing medium. The biological dechromizing method disclosed by the invention comprises the following steps of: adding the prepared biological dechromizing medium into waste water containing Cr<6+>; and dechromizing in an aerobic or anaerobic environment. Due to the adoption of the method, mass transfer resistance is greatly lowered, and the industrial prospect is wide.

The invention belongs to the technical field of a structural electrical measuring test method, and provides a sensor fast wiring and fault identifying system for an electrical measuring method. The system consists of junction boxes, a signal light switch control box and a computer. The function of the junction boxes is to realize fast wiring between a sensor and a measuring instrument through standard interfaces of the sensor. The junction boxes are fixedly connected with the measuring instrument and the signal light switch control box to enhance the construction efficiency of an electrical measuring system. An existing thousand-level large-scale electrical measuring channel makes the time cost of debugging and troubleshooting of the electrical measuring system soar, a fault location cannot be found out quickly and accurately, and the efficiency of a large-scale and complex electrical measuring test is seriously affected. According to the sensor fast wiring and fault identifying system, based on the wire number corresponding to the abnormal data collected by a strain meter, signal lights can be lightened, rapid locking of an abnormal connected wire is thus achieved, and the debugging and troubleshooting efficiency of the large-scale and complex electrical measuring test system is greatly improved. In addition, the sensor fast wiring and fault identifying system has the characteristic of reuse, and the construction efficiency of the large-scale electrical measuring test can be greatly improved.

The invention discloses a carbon dot/silicon dioxide composite material and a preparation method and application thereof, and relates to the technical field of preparation of carbon dot composites.The preparation method comprises the following steps that tetraethyl silicate is added into absolute ethyl alcohol, then a blue light carbon dot solution is added, stirring is conducted, ammonia water is added, stirring, centrifuging, washing and drying are conducted, and the carbon dot/silicon dioxide composite material is obtained. The material is applied to photocatalytic removal of uranium, has the advantages of high removal efficiency, low consumption, good repeatability and the like, and is expected to be really applied to purification and separation of uranium in uranium-containing wastewater.