Retaining ring adjusting device of vertical roller mill

The invention discloses an adjusting device for a retainer ring of a vertical roller mill. A built-in adjusting mechanism is arranged in a shell in the mill; the device is characterized by comprising a retaining ring and a retaining ring support, the retaining ring support is welded on the outer wall of the retaining ring along the radial direction, a plurality of height adjusting base plates are arranged above the retaining ring support, the height adjusting base plates and the retaining ring support are fixedly mounted on a radial support through fasteners, and the outer end of the radial support is welded on the inner wall of a shell in the mill. According to the invention, the material retaining ring and the millstone can be separated in space, the material retaining ring originally rotating along with the millstone is suspended above the millstone and is statically supported by the bracket welded in the shell in the mill, and a fine powder discharging gap is formed between the material retaining ring and