There are several key decisions that will determine the success or failure of a system when it comes to conveying materials. These decisions often involve core materials, tube, and cover constructions as well as vent connectors.
Hose cores must be compatible with the medium being transported, and they must also not erode or degrade under changing conditions and pressures. They can be made of metal, silicone or fluoropolymer and thermoplastic (nylon) or rubber.
Industrial material conveying hose series
The industrial material conveying hose series is designed for transferring dry and abrasive materials such as powders, plastic pellets and granular materials. The hoses have a polyurethane tube and a PVC (polyvinyl chloride) cover that provides good oil resistance. The hoses have a static-discharge wire between the hose and the cover that dissipates static charge on the hose to help prevent sparks that can ignite dry materials inside the hose.
The hose tube is made from a thermoplastic alloyed blend of nitrile, polyurethane and PVC (polyvinyl chloride), and the cover is made from an abrasion-resistant SBR (styrene-butadiene rubber). These hoses are used for conveying sand, gravel, cement, fly ash, glass, metals, plastic pellets, fertilizers, rock salts, slurries and other solid bulk materials.
These bulk abrasion-resistant Hoses are used to convey sand, concrete and glass. They are ideal for sandblast recovery mineral processing power plants, equipment rentals, and spill recovery.
These hoses are also ideal for conveying powder materials in the food and pharmaceutical industries. They are FDA-compliant and made from polyurethane. Fabric reinforcement improves suction and discharge strength. A grounding wire is also embedded in the exterior of the Hose, which helps to prevent static buildup as well as reducing the risk of dangerous electrostatic discharges while transferring powders, pellets, and other granular materials.
material conveying hose
The application range of the material conveying hose includes a wide variety of bulk material handling systems. These include granules and feed, grain, flour powder, cement, limes, sand, and other dry bulk material.
These applications require hoses that are strong enough to withstand high pressure and abrasion. It should also be flexible enough for handling the materials it transports.
Polyurethane (or PU) is one type of hose material that can be used to convey a wide variety of materials. For example, PU can be kinked less easily than other hoses and it can withstand higher pressures without weakening.
Another common hose material is rubber, which can be used in a variety of industrial applications. It can be made into a variety of hose types, including a smooth bore and convoluted tube hoses. It's an economical option for transporting medium- to heavy-duty fluids.
Food-grade hoses can be manufactured with natural rubber components, steel wire helix reinforcement and a corrugated cover that protects the braids from fraying and prevents sparks from burning dry materials inside the hose. These FDA-compliant hoses are ideal for conveying flour, sugar, syrup, edible grains and other bulk products. They can be used in pneumatic, suction, or vacuum conveying systems.
Media transported via material conveying hoses
The application range of material conveying hoses is wide and diverse. In the plastics industry, for example, they are used to transport powdery substances in granulate conveying devices and vacuum conveyors. They are also used for powder transportation and venting fumes in the paint industry.
The static electric charges build up on the hose walls from friction of the transported material on the inner surface can cause flashovers in pneumatic transfers of bulk materials such as powder coating plants and for fuel and liquid transfer (for example, lubricants). The resulting electric charges can't flow away without special precautions. They also impair the conveying process, causing it to become leaky, or even ignition-prone.
The electrostatic charge can be effectively dissipated by using a high-conductivity stranded or wire-incorporated hose. The shaped line area that surrounds the wire or stranded conducting conductor can further improve the hose's optical transparency.
In addition, the patented invention specifically reduces the risk of caking of the powdery substance transported in the hose by the use of short, electrically highly conductive fibers or conductive carbon particles embedded in the base material as the electrically conductive particles. Typically, about 1 to 3% by weight of these fibers are inlaid into the base material.