Magnetic separation device for industrial park ferronickel slag solid waste and working method of magnetic separation device

The invention relates to the technical field of magnetic separation devices, in particular to a magnetic separation device for industrial park ferronickel slag solid waste and a working method of the magnetic separation device. A material receiving area and a magnetic separation area are arranged on the upper conveying face of a first conveying belt in the feeding assembly. A magnetic attraction area is arranged on the lower conveying face of a second conveying belt in the magnetic separation assembly, the magnetic attraction area protrudes out of a magnetic separation area in the conveying direction, a material guiding assembly is arranged below the protruding part, the feeding assembly comprises a fixing frame and a feeding hopper, and the feeding hopper comprises a material collecting groove and a material uniformizing groove formed below the material collecting groove; the material uniformizing groove comprises a vertical reducing section and a flat material spreading section, the flat material spreading