An interchangeable drying compartment device for air-swept coal mill

Abstract

The invention relates to the field of ball mills with drying bins, in particular to an interchangeable drying bin-separating device for an air-swept coal mill. The interchangeable drying bin-separating device comprises a combined supporting frame, a conical discharging body, a plurality of lifting plates and bin-separating grid plates; the combined supporting frame comprises an annular fixing frame with the U-shaped section, the periphery of the fixing frame is fixed to a mill cylinder, and a supporting plate with a central hole and a baffle are connected to the two sides of the fixing frame respectively through bolts; the bin-separating grid plates are connected to the side, facing a grinding bin, of the fixing frame through bolts; the conical discharging body is arranged in the central hole of the combined supporting frame and is connected and fixed to the supporting plate, and a plurality of butt plates used for fixing the lifting plates are arranged in the peripheral direction of the conical discharging body; each lifting plate is composed of one arc-shaped curved plate and two side plates, is embedded between the baffle and the supporting plate and is connected to the supporting plate through one side plate and a bolt. According to the interchangeable drying bin-separating device, the interchangeability of the bin-separating device can be improved, the material accumulation problem of a drying bin can be solved, the mill efficiency can be improved, assembly is easy, and the potential safety hazard of bolt breakage is avoided.

Description

technical field

[0001] The invention relates to the field of ball mills with drying chambers, in particular to a drying chamber device applied to air-swept coal mills. Background technique

[0002] During the grinding process, the water content of the material is usually high, even as high as 10% to 14%. High water content will lead to low grinding efficiency, which is not conducive to the grinding of materials and reduces output. Therefore, when the material has a high water content and needs to be dried, a drying chamber, a drying compartment and a grinding chamber are often installed in the mill barrel, and hot air is passed through it. After the material is fully heat-exchanged in the drying chamber and dried, it is sent to the grinding chamber for grinding through the drying compartment device.

[0003] At present, the drying compartment device is composed of a support frame, a grate plate, a central cone, and a lifting plate. The outer ring of the support plate is fi...

Images