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Pneumatic loaders have short transport distances (not more than 60m ), high gas consumption, high cost of mining, high noise, and reduced usage. However, in the diesel fuel scraper exhaust gas purification has not been completely solved, the quality of spare parts is still difficult, and the level of mine mechanics is not enough, the pneumatic loader for the small and medium-sized mining yards is still an effective operation. devices, sometimes, which is even lower than the cost of scraper ore, as is the case Meishan iron ore.
Diesel scrapers produced at home and abroad are basically the same structure, with working mechanism, engine and purification device, transmission system, steering system and braking system. Most of the transmission mechanisms are installed on the rear frame, and the front and rear mechanisms are used. The pin is hinged. ST series diesel scraper outline structure.
The electric scraper was developed on the basis of a diesel scraper. Most of the components are structurally compatible with diesel scrapers. Most of the power supply methods are powered by towed cables, and a few are battery and wired power supplies.
The shape and structure of the WJ-1.5D , electric scraper developed by China .
The remote-controlled scraper is composed of a diesel transmitter, a radio transmitter, a receiver, a signal conversion system and a mechanical actuator. The working principle is that the driver operates a remote control launching station that is tens of meters to one hundred meters away from the scraper. The remote command of the electromagnetic wave generated by the transmitter reaches the receiver on the scraper, and the receiver receives the electrical signal and converts it into a mechanical command. , operate the scraper to work.
The remote-controlled scraper developed in China adopts the frequency-time-division radio remote control technology, and designs the remote control hydraulic system and device. It can operate five kinds of actions at the same time. There are more than a dozen remote control commands, which can be used for engine warm-up, start-up, horn and hand-made. Remote control for motion, foot brake, shifting, reversing, boom lift, bucket flip, etc.
The remote-controlled scraper protects the driver from danger and harsh working conditions, ensuring personal safety.
In the transportation of foreign trackless equipment, it is worthwhile to learn from the use of front-end loaders and trucks. Due to its flexibility, high loading efficiency and low profile, the front end loader is widely used as both a loader and a loader. When used as a loader, a sufficient number of trucks must be available to ensure continuous operation of the shovel. The number of trucks required depends on the truck size and the distance. A low profile truck with a load capacity of 40t is now available .
The bucket capacity is 3.82m3 with two 20t trucks. The 1.19m3 front loader is equipped with four 10t trucks. It is used in the room and column method. When the transport distance is 1000m , the production capacity is 1100. Ton check and 950 tons / class.
What are the mineless transportation equipment in mines in China?
The equipment used in China's trackless equipment transportation is: pneumatic loader, diesel scraper and electric scraper.