Blanking valve mechanism of limestone bulk mechanism

The utility model relates to a feeding valve mechanism of a limestone bulk mechanism. The feeding valve mechanism of the limestone bulk mechanism comprises a hopper. Valves are horizontally arranged in the hopper. The valves are composed of a bar valve and a plate valve, wherein the bar valve and the plate valve are stacked in vertical. In the blanking valve mechanism of the limestone bulk mechanism, the two valves are horizontally arranged in the hopper. The bar valve is arranged at the upper portion of the valves, and the plate valve is arranged at the lower portion of the valves. A plurality of valve rods which move in the opposite direction are arranged in the bar valve. Two valve plates which move in the opposite direction are arranged in the plate valve. When feeding is started, the two valve plates are opened, the valve rods are opened to discharge limestone until the limestone is almost filled in a truck, the valve rods are closed firstly, and then the valve plates are closed. Due to the fact that a c