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12results about How to "Efficient plugging" patented technology
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Recycling device for leftover materials generated after cutting in plastic bag production
PendingCN121946616AImprove efficiencyhigh speedPlastic recyclingMetal working apparatusSlide plateWaste material
The invention relates to the technical field of plastic bag processing equipment, and discloses a plastic bag production cut leftover material recycling device which comprises a U-shaped conveying trough plate, a conveying belt is installed in the U-shaped conveying trough plate, an n-shaped plate is fixedly installed at the top of the U-shaped conveying trough plate, and a collecting pipe is fixedly installed between the n-shaped plate and one side of the U-shaped conveying trough plate. A prismatic material guiding opening is formed between one side of the collecting pipe and one side of the U-shaped conveying groove plate, a mounting plate is arranged in the n-shaped plate, two cutters are symmetrically and fixedly mounted at the bottom of the mounting plate, a through sliding groove is formed in the middle of the mounting plate, two sliding rods are fixedly mounted in the through sliding groove, and a sliding plate is movably connected between the two sliding rods in a sleeving mode; a rubber scraping block is fixedly mounted at the bottom of the connecting push plate; according to the recycling device for the leftover materials generated after plastic bag production and cutting, the cut waste materials can be effectively collected and treated in the plastic bag cutting process, and meanwhile the recycling device can guarantee the cutting continuity.
Owner:QINGDAO XUCHENG PACKAGING & PRINTING CO LTD
Safety structure of electric appliance
ActiveCN224288223UEasy to take outEfficient pluggingEmergency protective devicesFuse (electrical)Electrical contacts
The utility model discloses a fuse structure of an electric appliance, which comprises an insulating cover and a metal support, the metal support is connected with the insulating cover, the metal support is provided with a contact part and a clamping part, the clamping part is used for clamping a fuse and electrically contacting and conducting with the fuse, and the contact part is used for electrically contacting and conducting with a conductive terminal in the electric appliance; the fixing and conductive functions of the fuse are integrated through the metal support, the design of an insulation frame is omitted, the design difficulty of an insulation cover is reduced, and meanwhile the insulation frame is prevented from occupying the internal volume of electrical equipment. Besides, the clamping portion of the metal support can firmly clamp the fuse, electric contact conduction between the fuse and the metal support is guaranteed, the contact portion can stably and electrically contact with a conductive terminal in an electric appliance, and normal work of the electric appliance is guaranteed. When the fuse needs to be replaced, only the insulation cover needs to be separated from the electrical equipment, the fuse can be conveniently taken out from the clamping part of the metal support, and effective plugging and unplugging of the fuse are achieved.
Owner:HUIZHOU OULI TECHNOLOGY CO LTD
Modified silicon dioxide fiber, oil-based drilling fluid and preparation method of oil-based drilling fluid
PendingCN121992654AImprove temperature resistanceEnhanced inhibitory effectFibre treatmentDrilling compositionPhysical chemistryGlutamic acid
The invention provides a modified silicon dioxide fiber, an oil-based drilling fluid and a preparation method of the modified silicon dioxide fiber and the oil-based drilling fluid. The preparation method of the modified silicon dioxide fiber comprises the following steps: carrying out surface modification on silicon dioxide fiber by using a silane coupling agent to obtain a first modified product; and carrying out surface modification on the obtained first modified product by using lauroyl glutamic acid and tert-butyl peroxypivalate to obtain the modified silicon dioxide fiber. The oil-based drilling fluid comprises an oil phase, bentonite, a flow pattern regulator, a filtrate loss agent, modified silicon dioxide fibers, a weighting agent and a lubricant, 100 parts by weight of the oil phase is taken as a reference, the bentonite accounts for 3-8 parts by weight, the flow pattern regulator accounts for 7-10 parts by weight, the filtrate reducer accounts for 3-5 parts by weight, the modified silicon dioxide fiber accounts for 18-22 parts by weight, the lubricant accounts for 8-12 parts by weight, and the weighting agent accounts for 20-26 parts by weight. The oil-based drilling fluid provided by the invention has good solid-phase dispersion performance and plugging performance.
Owner:PETROCHINA CO LTD
Dendrimer composition for preventing gas channeling and carbon sequestration, hydrogel and preparation method and application thereof
PendingCN121950276AImprove underground storage ratehigh viscosityDrilling compositionCelluloseDendrimer
The invention discloses a dendritic macromolecular composition for gas channeling prevention and underground carbon sequestration, hydrogel as well as a preparation method and application of the dendritic macromolecular composition. The dendritic macromolecule composition is prepared from the following components in percentage by weight: 0.06 to 0.4 percent of dendritic macromolecules; 0.8-1.6 wt% of sodium carboxymethyl cellulose, and the balance of water. The dendritic macromolecules are at least one of second-generation and third-generation dendritic macromolecules prepared from ester monomers and amine monomers through iterative Michael addition reaction by taking amino-terminated dendritic macromolecules as cores; the ester monomer is methyl acrylate; the amine monomer is selected from one of tris (2-aminoethyl) amine, diethyltriamine and triethyltetramine. CO2 is introduced into the composition to form hydrogel with a three-dimensional network structure, the hydrogel has high-density active sites, and the reaction efficiency with CO2 can be remarkably improved, so that long-term channeling sealing and carbon sequestration performance is exerted in the CO2-EOR process, the problem of oil displacement efficiency reduction caused by gas channeling is relieved, and blocking-sealing integrated carbon sequestration is realized.
Owner:SICHUAN UNIV
Preparation method of composite material for blocking mine water burst
PendingCN121850528AImprove impermeabilityImprove early strengthSolid waste managementCeramicwareMaterials preparationSlag
The invention discloses a preparation method of a composite material for plugging water burst of a mine hole, and relates to the technical field of preparation of mine hole plugging materials, and the preparation method comprises the following steps: preparing raw materials, mixing dry materials, weighing the raw materials in parts by weight, and proportioning water added into the dry mixture; and constructing and maintaining. Water flow scouring can be effectively resisted, and rapid plugging is achieved; meanwhile, a large amount of fly ash and tailing slag industrial solid wastes are utilized, the raw material cost is remarkably reduced, and the method is green and environment-friendly; the overall performance adapts to complex geological conditions, and the plugging agent is particularly suitable for efficient and reliable plugging and filling of water bursting cracks, goaf and subsidence areas in projects such as mines and tunnels.
Owner:SHANGLUO LVBAO ENVIRONMENTAL TECH CO LTD
Combined bag-type dust collector
ActiveCN224180507Uquick plugEfficient pluggingDispersed particle filtrationStructural engineeringControl theory
Owner:ZHEJIANG JIENUO ENVIRONMENTAL PROTECTION TECH CO LTD
Method for modular assembly of a truss of a closure plug assembly pile body
PendingCN122428615AImprove plugging efficiencyEfficient plugging
The application discloses a kind of breach plugging assembly type pile body truss modular assembly method, belong to major natural disaster prevention and public safety technical field.The method includes four steps of breach monitoring and situation assessment, emergency rescue resource preparation, assembly type pile body truss module cooperative plugging operation, later reinforcement.Through the steel pipe pile that is punched into in upstream and downstream of breach, form box type interception structure by quickly assembling the scaffold steel pipe truss module prefabricated on embankment and steel pipe pile, effectively reduce the flow velocity of breach mouth water;Tilt fill stone residue material between the interception structure and form occupation body, throw fill loose soil after closure and close gas, finally through the later reinforcement of building moon embankment and slurry pressure injection.The application is especially suitable for important embankment breach emergency rescue plugging with fast water flow velocity and deep water depth through pile body-truss modular cooperative design, with fast emergency rescue construction speed, strong safety, high one-time success rate, solid and reliable characteristics, suitable for emergency rescue under extreme hydrological conditions.
Owner:YELLOW RIVER INST OF HYDRAULIC RES YELLOW RIVER CONSERVANCY COMMISSION +1
Preparation method and application of a kind of ocean drilling fluid inner rigid outer soft core-shell structure silicon dioxide blocking agent
ActiveCN119505122BInhibition of secondary productionimprove securityProductsReagentsMeth-Pyrrolidinones
This invention relates to a method for preparing and applying a core-shell structured silica plugging agent with a rigid inner structure and a flexible outer structure for marine drilling fluids, belonging to the field of deepwater oil and gas drilling. This invention uses N-vinyl-2-pyrrolidone, dimethyl diallyl ammonium chloride, acrylamide, and 2-acrylamide-2-methylpropanesulfonic acid polymerized and grafted onto the surface of nano-silica to form a core-shell structured silica plugging agent with a rigid inner structure and a flexible outer structure. By utilizing the rigid plugging of nanomaterials and the flexible plugging of polymer deformation, this method effectively seals the micro- and nano-pores of shale and mudstone, thereby maintaining wellbore stability. Simultaneously, it effectively inhibits the secondary formation of hydrates, improving the safety and efficiency of deepwater drilling. Furthermore, the plugging agent of this invention reduces the need for large amounts of thermodynamic inhibitors, saving costs and possessing environmentally friendly properties.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
A grouting water plugging device for treating water inrush of a wellbore working face
This utility model relates to a grouting and water-blocking device for treating water inrush at a well working face. It includes a water-blocking structure and construction tools. The water-blocking structure is positioned above the water-rushing working face and below the static water level. The structure comprises, from bottom to top, an isolation filter layer, a pressure cushion layer, and a single-liquid grout stop layer. The construction tools include a grouting pipe and a high-pressure grouting pump. The upper end of the grouting pipe is connected to the high-pressure grouting pump, which is located outside the well. The grouting pipe consists of a seamless steel pipe body with several outwardly extending grout nozzles in the upper middle part. A limiting device is located below the grout nozzles on the seamless steel pipe, allowing grout to flow only from the nozzles when activated. This utility model employs a three-layer combined grouting and water-blocking structure consisting of an isolation filter layer, a pressure cushion layer, and a single-liquid grout stop layer. The grout stop layer structure formed by underwater integrated casting is more robust, enabling rapid and efficient sealing of water inrush at the working face and reducing project costs.
Owner:CHINA NO 15 METALLURGICAL CONSTR GRP
Stator glue filling device
ActiveCN224473177UEscape smoothlyReduce the difficulty of demouldingThermal dilatationMechanical engineering
A stator glue-filling device includes: a mandrel for inserting into the inner hole of the stator to seal the inner hole; the mandrel includes a first shaft segment and a second shaft segment, the diameter of the second shaft segment being larger than the diameter of the first shaft segment; the first shaft segment and the second shaft segment are connected by a tapered ramp section; the first shaft segment includes a large-diameter segment and a small-diameter segment, the diameter of the large-diameter segment being adapted to the diameter of the inner hole to position the mandrel; the small-diameter segment corresponds to the end wall of the inner hole, the diameter of the small-diameter segment being smaller than the diameter of the large-diameter segment, so as to form a deformation space between the small-diameter segment and the hole wall of the inner hole for the mandrel to expand and contract thermally. During glue filling, the mandrel expands due to heat, and the diameter of the small-diameter segment increases. After the glue material cools and forms, the mandrel can cool and shrink back, and the restored diameter of the small-diameter segment can form a gap on the outer periphery of the small-diameter segment, which facilitates the smooth removal of the mandrel from the stator and improves the product qualification rate.
Owner:SHANGHAI LEISAI ROBOT TECHNOLOGY CO LTD +2
Anodic oxidation treatment process for titanium alloy part
PendingCN121951649AImprove uniformityimprove bindingSurface reaction electrolytic coatingElectrolytic agentEtching
The anodic oxidation treatment process for the titanium alloy part comprises the following steps that S1, pretreatment is conducted, specifically, alkaline oil removal, acid pickling and ultrasonic microetching are conducted; s2, sectional type anodic oxidation, wherein pre-oxidation, main oxidation and supplementary oxidation are included; and S3, post-treatment, including low-temperature sealing, silane modification and hot air drying. A titanium alloy surface oxide layer is removed through composite pretreatment, and a micro rough structure is formed; then, a novel environment-friendly electrolyte is adopted, segmented oxidation is achieved through gradient regulation and control of voltage and current, and an oxidation film of a gradient structure is prepared; and finally, carrying out low-temperature sealing and silane modification composite post-treatment to improve the performance of the film layer. The anodic oxidation film obtained through the anodic oxidation treatment process of the titanium alloy part is high in binding force, excellent in corrosion resistance, environmentally friendly and uniform in film layer.
Owner:BAOJI OUYUAN NEW-METAL TECH CO LTD
Material packing integrated device
ActiveCN121590838Breduce loss rateImprove wear resistanceRotary stirring mixersWrapper twisting/gatheringStructural engineeringWear resistance
The present application relates to material packaging equipment technical field, specifically to a kind of material packing integrated equipment, including support seat, rack fixed in the top of support seat and bag gripper fixed in the top of rack one side, through the setting of bag gripper, drive assembly and reinforcing assembly, the material packing integrated equipment of present can accurately apply reinforcing glue to the bottom of packaging bag when using, cooperate hot air rapid drying to form dense wear-resistant glue layer, efficiently block bag bottom seam sewing pinhole and seam gap, then utilize hot-melt pressing plate to carry out secondary hot-melt pressing at the more bottom end position of bag bottom sewing line, form a dense hot-melt pressing layer sealing structure, realize the secondary reinforcement of bag bottom.The design greatly improves the wear resistance and impact resistance and pressure resistance of bag bottom, effectively avoids the problem of bag bottom damage and leakage caused by material scratching and long-term stacking, adapts to packaging bags of various materials, significantly reduces the loss rate in the process of material storage and transportation, improves the stability and reliability of packaging operation.
Owner:HEBEI DETAI AUTOMATION PACKAGING EQUIP CO LTD