Weighing device for chemical fertilizer production

The utility model discloses a chemical fertilizer production weighing device, which relates to the field of chemical fertilizer production weighing and comprises a wagon balance, a filter plate is arranged on the outer surface of the wagon balance, a water outlet is arranged at the bottom of the wagon balance, a positioning seat is arranged at the top of the wagon balance, and a mounting plate is fixedly connected to the top of the filter plate. The top of the mounting plate is in threaded connection with a bolt, a blocking shell is arranged in the wagon balance, an inner groove is formed in the wagon balance, and sliding blocks are fixedly connected to the front face and the back face of the positioning seat. According to the utility model, the positioning seat is pressed downwards under the action of gravity, the spring is pressed, so that an automobile leaves the opening to reset the positioning seat, the positioning seat drives the connecting plate to move downwards through the fixing block, the contact b