TH series bucket elevators are suitable for conveying powder-free, granular and small-sized materials without grinding and grinding. The TH type is a circular chain bucket elevator that uses a hybrid or gravity unloading, digging type of charging. High-quality alloy steel height ring chain for traction parts. The central casing is divided into single and double channels, and the internal hammer box is automatically tensioned by constant force. The sprocket adopts a replaceable rim combination structure. Long service life and easy rim replacement. The lower part adopts the gravity automatic tensioning device, which can maintain a constant tension and avoid slipping or de-chaining. At the same time, the hopper has certain tolerance when it encounters the jamming phenomenon caused by accidental factors, and can effectively protect the lower shaft and other components. The bucket elevator is suitable for conveying powdery, granular and small-sized bottom-grinding materials with a bulk density of less than 1.5t/m3. Such as coal, cement, gravel, sand, fertilizer, food and so on. The TH bucket elevator is used for vertical conveying of various bulk materials. It is suitable for conveying powdery, granular and small block materials. The material temperature is below 250 °C.
The working principle of the bucket elevator is: the hopper picks up the material from the storage below, and as the conveyor belt or chain is lifted to the top, it bypasses the top wheel and then flips down. The bucket elevator pours the material into the receiving tank. Inside. The belt of the belt-operated bucket elevator is generally a rubber belt that is mounted on the lower or upper drive roller and the upper and lower redirecting rollers. The chain drive bucket elevator is generally equipped with two parallel drive chains with a pair of drive sprockets on the upper or lower side and a pair of reversing sprockets on the bottom or the top. Bucket elevators are generally equipped with organic shells to prevent dust from flying in the bucket elevator.
There are two kinds of external fixations for pelvic fractures, namely temporary fixation and therapeutic fixation.
Temporary fixation depends on on-site assistance. Assuming that the patient has serious open injury, severe hemorrhagic shock, and serious fracture dislocation, the rescue personnel will provide temporary external fixation support to maintain the stability of the pelvis, reduce secondary injuries, and correct the continuous aggravation of hemorrhagic loss on the scene. The therapeutic external fixation stent is used to correct the dislocation of the fracture through routine examination after admission, evaluation of the injury, and external fixation installation through treatment, maintain the relative stability of the fracture, create a very quiet environment for the fracture healing, and lay the foundation for the healing of the fracture. External fixation is an important method for pelvic fractures.
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