Weighing device for powder silo of mixing plant

The utility model discloses a weighing device for a powder silo of a mixing plant. The weighing device comprises a bearing support, wherein the bearing support is erected beside the powder silo, a cross beam is arranged on the bearing support, a weighing sensor is fixedly mounted on the cross beam, a hook is arranged on the weighing sensor, connected with a wire rope, and connected with the powder silo through the wire rope, the bearing support and the cross beam are made of steel and are connected to form a steel framework, and the weighing sensor adopts a hanging arm type weighing sensor. By adopting the weighing device for the powder silo of the mixing plant, a free stand type weighing mode is modified to a hanging weighing mode so that the powder silo is completely in a stable and hung state, various negative factors of the free stand type weighing mode are eliminated, and accurate powder weighing is ensured.