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Introduction of conveyor belt

Introduction of conveyor belt  conveyor belt   conveyor used to carry materials and deliver traction components. The main parameter is the width of the conveyor belt. Conveyor belt is divided into ordinary and special conveyor belt two. Common type conveyor belt such as belt conveyor belt fabric core, using an ordinary rubber as cover material, the surface smooth and flat (Figure 1. With a core is a cotton, nylon,  Polyester Conveyor Belt  or other fibers woven into the vinylon hierarchical or the whole fabric. Cotton fiber is applied with the first core material, easily bonded with rubber, slightly higher strength when wet, but the breaking strength and low 〔mostly in the 56 cattle / (mm layer) around〕, poor corrosion mildew the use of dwindling. 50 late 20th century began with a core made of nylon fabric material, and has become the biggest kind of quantity. nylon fiber strength of up to 700 cattle / (mm layer), water-resistant, anti-corrosion, resistance to bending fatigue ; but elongation of greater flexibility. polyester fibers performance and nylon fibers similar to, but when using flexible nylon fiber elongation is only half, is a promising material. vinylon fiber strength up to 200 cattle / (mm * layer), flexible nylon fiber elongation than the small, easy and rubber adhesive, heat resistance is good, but when the strength of wet to reduce 10 ~ 25%, only in China, Japan and a few other countries use. In the core, when Braid can be only one fiber, two kinds of fibers can also be blended or interwoven. There are special   Steel Cord Conveyor Belt  , high-inclination zone, heat zone, cold zone, flame retardant belt, wire mesh belt and steel and so on. ① steel cord belt: using multiple roots good and high strength flexible steel wire rope instead of a special fabric with a core of the conveyor belt (Figure 2). 60 years, the steel core with a large number of applications, its breaking strength of up to 7000 cattle / mm, elastic elongation of very small, lateral rigidity is small, good impact resistance. Most of the use of such long-distance belt conveyor belt, and in some belt feeder also has used. ② high-inclination belt: including short pattern with high pattern belt, diaphragm-type band and several types of wall-type band (Figure 3). Dwarf pattern with the face covered with a gel height of 10 mm below the rubber bumps of various shapes or convex section in order to stop the transfer layer of material used to transport bulk powder materials and small particles. Pattern with a high surface bumps with a height of between 10 ~ 25 mm in order to prevent rolling of materials used to transport medium and large size of the bulk materials. The two inclined belt conveyor can raise about 10 °. Diaphragm-type of the face covered with sticky rubber on the high more than 100 millimeters of partitions, partitions are divided into pairs of fin-shaped shape, multi-fin-shaped, high-Article V-shape or a shape can be used to achieve up to 53 ° inclination of the upward transport. Ribs or a plate-type belt with corrugated wall of the diaphragm, rib height of 40 ~ 300 mm, this can be achieved with a vertical lifting. ③ Heat tape: Use special rubber as cover material conveyor belt, transmission temperature materials up to 800 ℃. ④  Cold Resistant Conveyor Belt : also used as covering materials, special rubber conveyor belt, can be used in -55 ℃ environment. ⑤  Flame Resistant Conveyor Belt : PVC or special rubber conveyor belt for covering materials, mainly for coal mine. It produced a strong drum or other mechanical friction difficult to produce flame and cause an explosion. ⑥ wire mesh belt: from woven wire, there is no cover, -55 ~ 1200 ℃ for the transfer of materials or in the transportation of materials to complete the dehydration operation. ⑦ strip: from 0.2 ~ 4 mm thick cold-rolled steel plates, mostly used in the drying furnace conveyor. ⑧ rope traction belt. Conveyor belt joint approach the quality of the joints have a great impact on the use of belt conveyors. Fabric core conveyor belt, the joint method of mechanical method, curing and cold viscosity law. Mechanical method will take both ends with special clamp connections, this method is simple and easy removal, but the joint strength decrease at more, only on a short belt conveyor. Sulfide method is to bring the two ends of a certain size in accordance with core layer Generative ladder-shaped, and bonded with each other before putting the raw rubber to vulcanization. Reduce the intensity of their joints at relatively small joints long life, but the operation time-consuming and require special curing equipment. Cold-curing adhesive method similar to the operation of law, only to use a special adhesive that will take both ends and not for vulcanization bonding. This approach has the advantage of fewer joints at lower intensity, easy to operate, time-saving, does not require special equipment. Steel cord belt connector with curing method, curing before the first rubber band at both ends of strip, will rope cross-lap, and then Rubbing raw rubber vulcanization. Strip joints using welding or riveting.

Maintenance of common sense

Maintenance of common sense
Well be able to extend the service life of  conveyor belts  maintenance. General requirements conveyor empty machine and running, so as to avoid motor overload and skid conveyor belt; down before, except in special circumstances, should be material on the conveyor belt all the Xiewan. Multi-machine reproduced transmission, the boot sequence is first to open the last one conveyor (discharge conveyor belt), and then forward the order to   Polyester Conveyor Belt  open the last opened the feed conveyor. Stop with the boot sequence is in reverse order.
Conveyor belt in use suffer tension should not be too great and should be with the drive roller does not slip and the degree of relaxation by the material point of hanging, but under the premise of ensuring a minimum tension of the early work; in the same machine may not be of different types, different specifications of the   Steel Cord Conveyor Belt  connected to use. A partial damage to conveyor belt should be repaired in time to avoid damage continues to grow.

Polyurethane composite materials used in the mining industry

Polyurethane composite materials used in the mining industry

    The mining industry is the most difficult one of the industries, mines and mineral transportation equipment is the focus of equipment, its costs can account for 50%  conveyor belts of the total cost of the mine as much. These composite materials conveying equipment are also very potential market. Canada RS technology company expects its corrosion-resistant composite material parts conveyor roller breakthrough for improving the delivery of mineral products. FMC Technologies, Inc. and its partners it is developing a composite material tube idler roller, its diameter 125 ~ 178mm, length up to 1.85m, will be used in a lot of mile-long conveyor belt system to replace the mineral roll pieces of mild steel. These rollers can be a high abrasion, high acidity and extreme temperature conditions of work for the mine owners save a lot of maintenance costs.

Polyurethane composite materials used in the mining industry
Polyester Conveyor Belt
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    This roller is used glass fiber and polyurethane resin pultrusion molding. In the mid-90s, RS Technologies, Inc. the parent company of RSI to develop its own proprietary polyurethane resin. This toughness is good, impact of the two-component resin for RS technology companies forming filament winding and pultrusion processes were optimized. Alleged to be a difficult polyurethane pultrusion technology, few companies can successfully used. Because of this two-component polyurethane resin, quick reactions, application of short duration, so its pultrusion production lines faster than the traditional use of conventional thermosetting resin pultrusion production lines faster.

    The glass fiber rovings and two to three layers of glass fiber blanket stitch arranged patented fiber structure, it would be a total pull into the injection mold. The two kinds of resin component and add a 1:1 ratio mixture of carbon black filler with a low-pressure injection molds, soaked fibers. Then the soaked material enveloping a tubular mandrel to enhance traction, the formation of 127,152, or 178mm diameter pipe. After the curing is completed in a few minutes and then  Nylon Conveyor Belt   cut the required length of the tube. Finished pipe wall thickness 7.9mm.

    This is currently used for pultrusion of pipe conveyor idler rollers, that is, when the conveyor belt return roller bearing. This compared to roller and steel roller has the following advantages:

    - More difficult to wear and corrosion.

    - Weight ratio of steel the same size light 30 ~ 50%, while the same strength. This is more convenient for workers handling and installation.

    - A lower coefficient of thermal expansion, and thus a lower degree of expansion and contraction, is less likely to become non-round and imbalances caused by uneven loads on the bearings.

    - Able to withstand the higher speeds and speed conveyor belt, resulting in less noise.

    - In line with the mining industry norms of fire anti-static, suitable for installation of above and below ground.