35results about How to "Little impact on liquidity" patented technology

The invention discloses a halogen-free flame-retardant type injection molding-class polyolefin wood plastic composite material and a preparation method thereof. The composite material consists of the following components in percentage by mass: 25 to 80 percent of polyolefin resin, 5 to 60 percent of plant fiber, 0.5 to 20 percent of compatilizer, 0 to 30 percent of flexibilizer, 0.5 to 8 percent of dispersant, 5 to 40 percent of flame retardant and flame retardance synergist and 0 to 1 percent of antioxidant. Compared with the conventional wood plastic composite material, the halogen-free flame-retardant type injection molding-class polyolefin wood plastic composite material has the characteristics of simple production flow, little using amount of the flame retardant, good halogen-free flame retardant effect, wide range of molding modes and the like and is applicable to various injection molding products, such as electric appliance shells, automobile parts, furniture, buildings and other parts.

The invention discloses an urban river ecological remediation system based on waterfront movement upper limb traction device aeration. The urban river ecological remediation system is constituted by connecting an energy transmitting and converting unit, an upper limb traction unit, a microporous aeration unit and a landscape plant restoration unit in sequence, wherein the energy transmitting and converting unit is composed of an outer cylinder, a middle cover, an inner cylinder, a packing cup, a steel ball one-way valve, a hollow base and an inverted-cross-shaped support, the upper limb traction unit is composed of a dual-track pulley, an upper steel wire rope, a lower steel wire rope, a spring fastener, a metal ring and an upper limb traction device, the microporous aeration unit is composed of a three-way unit, an air delivery pipe, an air stopping valve and a microporous aeration pipe, and the landscape plant restoration unit is composed of a fixed rotary shaft, a connecting ring, emergent aquatic plants, a filler string net, a cylindroid frame and a weaving net cover. Mechanical energy generated when the upper limb traction device is utilized is converted into mechanical energyof an aeration device, thus the dissolved content of oxygen in water is increased, and through combination of an ecological remediation floating floor which can move with water current, eutrophic urban rivers are remedied, and the urban river ecological remediation system has the advantages of being environmentally friendly, attractive, simple in structure, economical and practical.