Air Unloading Coal Railway Wagon With Four Bottom Discharge Hatches
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Air Unloading Coal Railway Wagon with Four Bottom Discharge HatchesBrief introduction: KMF72 Air Unloading Coal wagon is upgraded on the model of KM70 coal hopper wagon by adding one air control unloading system. The same train of coal wagons could be unloaded at same time.
The coals are loaded into the wagon from the open top and unloaded from the four bottom discharge hatches.The added air control device is arranged on the upper part of the traction beam at the position two end of the hopper wagon. To ensure driving safety and not affecting the original air brake system, an independent train pipeline is installed to supply air to the air control unloading device. The door opening mechanism at the bottom of the hopper is controlled by the air control device to open and close the bottom doors, realize unloading coals automatically and the synchronous unloading of the whole train.
The unloading air source could be from locomotive or ground air supply. An appropriate length or braided brake hose assembly is installed at the end of the wagon to connect with the air supply.
The air unloading hopper wagon is consisted of under frame, bottom doors, bottom door opening and closing mechanism, air control pipeline device, bogie, braking device and coupler draft gear device. The unloading ports are set on both sides of the vehicle bottom and there are 4 unloading hatches, which can be unloaded quickly by air control or by manual. The under frame and the bottom doors are all welded steel structure. It adopt K6 casting bogies, 120 type air brake control valve, NSW type hand brake, No. 17 coupler and MT-2 draft gear.
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