8results about How to "Increase the exposed area" patented technology

A rotary sludge high-efficiency drying device belongs to the field of sludge drying technology. The invention includes a base, a support seat fixedly installed on the top of the base, and a drying cylinder rotatably mounted inside the support seat. A sludge crushing mechanism is installed inside the drying cylinder. A drive seat is slidably mounted on the top of the base, and a feed cover is fixedly connected to the top of the drive seat. A discharge port is rotatably connected to the side wall of the drying cylinder, which, after being rotated and unlocked, is used to discharge the dried sludge. A cone-shaped nozzle periodically pierces and retracts from the sludge blocks located at the bottom of the drying cylinder. This piercing breaks the hard outer shell of the sludge, creating pores and cracks inside the sludge. High-temperature hot air can directly penetrate into the interior of the sludge blocks through these pores and cracks, significantly increasing the heat transfer contact area, improving the moisture evaporation rate in the initial drying stage, and shortening the residence time of the sludge in the drying cylinder, thereby improving the overall drying capacity and efficiency of the equipment.

The utility model relates to material processing field discloses a kind of silicon oxide waste cleaning surface coating equipment, including mounting bracket, the inside of mounting bracket is provided with crushing adsorption component, reaction tank is fixedly connected with the side wall of mounting bracket, heating stirring assembly is provided in the inside of reaction tank, the crushing adsorption component includes crushing box, pivot, crushing box top fixedly connected with feed hopper.The utility model in this paper, motor one drives transmission shaft, crushing wheel is carried out to the crushing of silicon oxide waste, and then motor two drives belt, and magnetic stripe is carried out to the conveying and impurity screening process of waste, waste is sheared extrusion crushing using crushing wheel, increase coating exposure area, while magnetic stripe adsorption contains magnetic coating impurities, to realize the pretreatment cleaning of silicon oxide waste, avoid the problem that large waste coating is wrapped and difficult to clean, magnetic impurities mix and pollute subsequent process, crushing magnetic attraction integration reduces work flow, improves work efficiency.

This invention discloses a method for preparing and applying a non-high-temperature pyrolysis metal single-atom catalyst, comprising the following steps: dispersion: dispersing graphene oxide and a transition metal compound in an amide solvent to obtain a graphene oxide dispersion and a metal precursor dispersion; mixing: mixing the graphene oxide dispersion and the metal precursor dispersion, and homogenizing them under physical field-assisted treatment to obtain a mixed precursor suspension; solvothermal reaction: placing the mixed precursor suspension in a closed reaction vessel and performing a solvothermal reaction under autogenous pressure and heating conditions, and cooling after the reaction to obtain an intermediate product containing a metal-graphene hydrogel; purification and drying: washing and purifying the intermediate product with a polar solvent, followed by vacuum drying to obtain a non-high-temperature pyrolysis metal single-atom catalyst; grinding: grinding the obtained non-high-temperature pyrolysis metal single-atom catalyst into powder.

The invention relates to the technical field of oil and gas field exploration and development equipment, and discloses a single-gun-body in-situ rotary bullet-changing in-situ different-item perforator and an operation method thereof.The perforator comprises a shell, an annular cavity is formed in the shell, multiple pairs of through holes are oppositely formed in the two side walls of the annular cavity, and each pair of through holes are longitudinally formed; the two bullet supply parts are oppositely arranged on the shell, the rotary driving part is connected with the two bullet supply parts, and each bullet supply part is provided with a plurality of bullet storage bins corresponding to the second through holes, perforating bullets arranged in the bullet storage bins and a push-out part; the plurality of piezoelectric micro-valve modules are respectively arranged at the opposite through holes in the annular cavity and are used for controlling the opening degree of the valve; the control system is in signal connection with the rotary driving part, the plurality of push-out parts and the plurality of piezoelectric micro-valve modules; the perforator is simple in design and free of downhole fallen objects, double dynamic adjustment of variable energy and secondary phase can be achieved through a single tubular column, and the perforation efficiency and the reservoir transformation effect are remarkably improved.

The utility model discloses a kind of power module, it is related to power electronics technical field, wherein, power module includes substrate, chip component, power terminal and plastic package, chip component is installed in the substrate and is electrically connected with the substrate;Power terminal is electrically connected with the substrate, and is electrically connected with the chip component by the substrate;Plastic package covers the substrate, the chip component and part of the power terminal;Wherein, along the thickness direction of the power terminal, the power terminal has opposite first side and second side, the plastic package is covered to the first side length is greater than the second side length covered to it. The technical scheme provided by the utility model improves the power density of power module.

The application discloses a preparation method and application of a PTFE biomimetic membrane based on a photocatalysis-filter coupling mechanism. The method comprises the following steps: firstly, blending polytetrafluoroethylene (PTFE) and a photocatalyst in a solvent; sequentially performing pushing, rolling, longitudinal stretching, transverse-longitudinal stretching and heat treatment operations on the blended slurry; and finally obtaining the PTFE biomimetic membrane with photocatalysis-filter functions. The PTFE biomimetic membrane can be used for air purification, atmospheric dust removal, industrial waste gas filtration and the like. The application adopts a photocatalysis free oxygen negative ion generation mechanism, orderly embeds isotactic photocatalysts and constructs a micro-rough surface to realize air purification efficiency improvement, pollutant screening and anti-pollution performance. In addition, the orderly arranged photocatalysts can greatly improve light scattering, and then improve the photocatalyst efficiency of the material.

The application discloses a wear-resistant and high-temperature-resistant polyester fiber and a preparation method thereof, and belongs to the technical field of polyester processing, and is used for solving the technical problem that the wear resistance and high-temperature resistance of the polyester fiber in the prior art need to be further improved, and specifically comprises the following steps: adding modified PET, modified filler and auxiliary additive into a double-screw extruder, melt-extruding, spinning, and obtaining a polyester fiber precursor; the application is characterized in that an epoxy group is modified on a carboxylated carbon nanotube through a free radical polymerization reaction to obtain a modified filler, and the modified filler, the auxiliary additive and the modified PET are melt-spun together to obtain the polyester fiber precursor, a modified antibacterial agent is prepared through a coprecipitation method, an antibacterial liquid is further prepared, and the polyester fiber precursor is immersed in the antibacterial liquid to obtain the polyester fiber, so that the wear resistance and high-temperature resistance of the polyester fiber are improved, and the antibacterial performance of the polyester fiber is also improved.

The invention belongs to the technical field of membrane catalysis and separation, and particularly relates to a Cu (I)-MOF mixed matrix membrane, a preparation method, a photocatalysis-separation integrated device using the Cu (I)-MOF mixed matrix membrane and application of the Cu (I)-MOF mixed matrix membrane. The preparation method comprises the following steps: mixing Cu (I)-MOF and a PEGBEM-POEM copolymer solution according to a specific mass ratio to prepare a membrane casting solution, scraping the membrane, and drying to obtain the mixed matrix membrane. Wherein the Cu (I)-MOF is synthesized from Hdmtz, Hdetz and copper oxide nano particles. The integrated device comprises a reactor shell provided with a plurality of layers of parallel partition plate assemblies, the mixed matrix membrane is fixed in the partition plate assemblies, the internal space is divided into reaction-separation units which are connected in series, and a light source is arranged. After wet CO2 is introduced into the device, a photocatalytic reduction reaction is carried out on the surface of the membrane under illumination to generate CO, and in-situ separation and multi-stage purification of CO and O2 are realized by utilizing the high selectivity of the membrane to CO. According to the invention, high-efficiency conversion and separation from CO2 to high-purity CO are realized.