6results about How to "Fast condensation" patented technology

The utility model is suitable for the technical field of paint mist collection, and provides a paint mist rebounding device for cleaning paint. The hollow guide seat is arranged on the collecting shell; the flexible part is arranged on the hollow guide seat; the binding rope is wound and bound on the peripheral side of the flexible part, and the binding rope is connected with a winding mechanism for driving the binding rope to automatically bind the flexible part; the rebound plate is mounted in the collecting shell through an elastic telescopic rod, and the rebound plate faces the hollow guide seat; the inner wall of the collecting shell is connected with a scraping mechanism for automatically cleaning the collecting shell; the device has a good collecting effect.

This invention discloses an intelligent design and preparation method for low-cement-content sprayable engineering cement-based low-carbon composite materials, belonging to the field of composite material mix design. The method includes: constructing a multi-objective genetic optimization intelligent framework integrating raw material performance and carbon emission data to collaboratively optimize mechanical properties, workability, and low-carbon targets during the design phase, achieving precise pre-control of carbon emissions. A synergistic reinforcement design using recycled PE fiber networks and multi-microporous slurry is employed, replacing cement and natural aggregates with a large amount of recycled sand, recycled micropowder, and fly ash, reducing cement content to 210-300 parts. While ensuring rapid hardening, high toughness, and good sprayable construction performance, the material's implicit carbon emissions are significantly reduced. The resulting composite material achieves a 28-day compressive strength of 50-65 MPa, with net carbon emissions approaching zero, making it suitable for green building and rapid engineering repair applications.

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.

The present application relates to cement pole production technical field, especially to a kind of multifunctional integrated pole automatic production system, comprising: fixed mechanism, fixed mechanism is used to fix and hoist reinforcement cage;Mold closing mechanism, mold closing mechanism is located below fixed mechanism and is used to install mold, mold closing mechanism includes mold, is used to fixedly install mold closing assembly and is used to connect fixed mechanism and mold closing mechanism engagement assembly;Grouting mechanism, grouting mechanism is located at one end of mold closing mechanism and is used to carry out cement grouting in mold, grouting mechanism includes grouting assembly and dredging component;Centrifugal mechanism, centrifugal mechanism is used to carry out centrifugal initial setting to the mold that grouting has been completed, centrifugal mechanism includes driving mold rotation driving wheel and quick-drying component.

This utility model discloses a quick-connect seepage prevention structure for waterstops in underpass structures at road-bridge junctions, including adjacent overlapping waterstop bodies, pressing components, and a cold-bonded seepage prevention layer. The advantages of this utility model are: (1) Improved connection strength: The composite seepage prevention structure with cold bonding and pressing ensures stability under water pressure and structural deformation force, and the cold-bonded seepage prevention layer improves the seepage prevention effect of the joint; when subjected to 1.2MPa water pressure and ±20% structural deformation, no structural damage or leakage will occur; (2) Excellent sealing performance: It fills the transverse and longitudinal gaps tightly, and the formed cold-bonded seepage prevention layer fills the gaps that will inevitably form between the lower waterstop and the upper waterstop, as well as between the waterstop and the concrete structure, reducing the risk of leakage and ensuring waterproofing and structural safety; (3) Convenient and efficient construction: The construction method is clear and easy to operate, and the material cools down quickly, ensuring the safety of the underpass structure at the road-bridge junction.

The application discloses a kind of ultrafast hard seawater mixing based on sodium-aluminum ratio geopolymer and its proportioning correction and preparation method.The material takes metakaolin-based geopolymer as base material, by mixing quartz sand, hardening agent, chloride ion curing agent, sulfate ion curing agent and different materials, and is prepared by using seawater mixing and curing.The application controls setting time by adjusting system sodium-aluminum ratio, and uses multi-component synergistic effect to cure erosive ions, finally realizes the design purpose of early strength fast hardening and erosion resistance of geopolymer.The proportioning correction method of the ultrafast hard seawater mixing based on sodium-aluminum ratio geopolymer of the application reversely corrects mix proportion according to setting time requirement, with adjustable setting time;The preparation method of the ultrafast hard seawater mixing based on sodium-aluminum ratio geopolymer of the application has simple operation steps, does not need high-temperature forming and curing, and can be widely applied to pouring, reinforcement and repair of offshore engineering or coastal structures.