Quick Unloading Coal Hopper Wagon Auto Air Control Bottom Doors 70T Pay Load

Quick Unloading Coal Hopper Wagon Auto Air Control Bottom Doors 70T Pay Load

1. Application

KMF72 coal hopper wagon is upgraded on KM70 coal hopper wagon by adding one set air control device to open and close the bottom doors. This device could allow one rack coal wagons open and close the discharge bottom doors at the same time, which greatly improve the unloading efficiency.

2. Additonal bottom door air control device

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 air source of the added unloading device could be from locomotive or ground air source. An appropriate length or braided brake hose assembly is installed at the end of the wagon to connect with the air supply.

The air control device mainly includes 120 type air control valve (in order to increase the speed of filling and exhausting air, 14 inches can be used), 356×280 rotary two-way air cylinder, 160 liter air storage reservoir (stainless steel), as well as angle plug gate, combined dust collector, cut-off plug gate, braided brake soft assembly and air pressure gauge, main pipe tee, branch pipe tee, pipe fittings and corresponding pipe hangers. In order to realize the air control function and connect well with the original vehicle operating mechanism and transmission mechanism, add gear and rack transmission devices, and replace the transmission shaft and related accessories.

3. Main technical parameters:

4. Drawing

5. Detail Photo