Sand fracturing sand amount calibrating device

The utility model provides a sand fracturing sand amount calibrating device. A sand fracturing device comprises a sand tank and a blending truck which are connected through a material transmission pipeline; the sand fracturing sand amount calibrating device comprises a 3D (three-dimensional) material level detecting device and a material level viewing device, wherein the 3D material level detecting device is a 3D material level scanner at the top opening of the sand tank, the measuring probe of the 3D material level scanner corresponds to the upper surface of materials inside the sand tank, and the material level viewing device is a transparent bar-shaped window arranged on the side surface of the sand tank in the vertical direction. According to the sand fracturing sand amount calibrating device, workers do not need to climb a high-rise combined sand tank, thereby reducing high operation risks; meanwhile, the sand fracturing sand amount calibrating device is accurate in measurement and can avoid influence of weather and environmental conditions, working site commanders can accurately know residual sand amount to make construction adjustment, and operators on the blending truck can timely adjust sand transportation parameters/factors and complete design projects with quality and quantity guaranteed.