Blast furnace charging-free car simulated test device

The utility model relates to a load free analog trial run device of a blast furnace, which is mainly and technically characterized in that the device is composed of a computer console, a switchboard, a PLC control system, a weight acquiring module, and a material level acquiring module inside the PLC control system, wherein, the computer console is connected with the PLC control system through the switchboard, and a weight analog module and a material level analog module are connected inside the PLC control system. The utility model has the advantages that the structure is simple, the installation is convenient, and the utility model avoids the phenomena that the equipment frequently suffers from stockpiling, clamping and sprinkling under the trough during the real load trial run process or the daily production overhaul process, solves the problems that the furnace top part frequently suffers from material piling between a bucket and a hopper and the influence of the furnace burden fault to the furnace condit