Sinter mixture automatic water adding device and method

The invention discloses a sinter mixture automatic water adding device and method, and belongs to the technical field of sintering machine mixture water adding devices and methods. A sinter mixture is subject to automatic water adding. According to the technical scheme, a microwave moisture instrument is added at the position, in front of a mixing machine, of a mixing belt, a sealing cover is additionally arranged at the position above a site material field material with an infrared water instrument, a material flattening device is mounted at the position, behind the mixing machine, of a discharging belt, a pressurizing tank is additionally arranged on a nitrogen blowing pipeline used by the infrared water instrument, and a digital environment temperature measuring instrument is mounted on the wall of a workshop. The automatic water adding method comprises following steps of dry material value calculation, water adding flow calculation, same-area water adding flow timing and quantitative rapid compensation correction, frequency conversion water feeding pump frequency output calculation and valve opening degree calculation. After the device and method are implemented, mixture bin sticking and starting and the shutdown top and tail number are obviously reduced, the sintering product tact is stabilized to the maximum degree, generation of sintering waste materials caused by unstable water adding is avoided, and stable running of the sintering production is ensured.