High pressure roller mill feeding device

Abstract

The invention belongs to the technical field of solid material crushing, and particularly relates to a high-pressure rolling feeding device. The high-pressure rolling feeding device comprises a feeding hopper and is characterized in that a control valve and a material baffle assembly are arranged below the feeding hopper; the control valve comprises a valve hopper body, and an upper layer manual regulation valve and a lower layer pneumatic stop valve which are symmetrically arranged at two sides of the valve hopper body; the material baffle assembly comprises two material baffles of which the lower parts are inclined inwards and which are symmetrically and externally arranged at two ends of a gap between two grinding rollers; the material baffles are connected with flanges. According to the high-pressure rolling feeding device disclosed by the invention, by the inclined material baffles externally arranged at two ends of the grinding rollers, materials can be effectively stopped from freely sliding down along two ends of the length direction of the grinding rollers, a pressure when a high-pressure roller extrudes and particularly pressures at the two ends of the grinding rollers are kept, and a boundary material effect of the high-pressure roller is effectively reduced, so that not only is processing capacity of high-pressure rolling improved, but also boundary materials discharged by the high-pressure roller are finer, and particle sizes of the boundary materials and intermediate materials are more consistent.

Description

technical field [0001] The invention belongs to the technical field of solid material crushing, and in particular relates to a high-pressure roller mill feeding device. Background technique [0002] The high-pressure roller mill adopts the extrusion crushing method, and the proportion of ore powder is large after crushing; but when the high-pressure roller mill is rolling, the material column pressure on the middle part of the two rollers is higher than that of the materials on both sides. In addition, the material on both sides of the high-pressure roller mill along the length of the roller is easy to be unloaded from both ends of the roller without being rolled, which not only causes roughness at both ends, but also further reduces the extrusion force of the roller, especially the length of the roller. The pressure at both ends of the direction, this is the edge material effect of the high pressure roller mill. The edge material effect will not only reduce the extrusion f...

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Problems solved by technology

[0002] The high-pressure roller mill adopts the extrusion crushing method, and the proportion of ore powder ore is large after crushing; but when the high-pressure roller mill is rolling, the material column pressure on the middle part of the material between the two rollers is higher than that of the materials on both sides. In addition, the material on both sides of the high-pressure roller mill along the length of the roller is easy to be unloaded from both ends of the roller without being rolled, which not only causes roughness at both ends, but also further reduces the extrusion force of the roller, especially the length of the roller. The pressure at both ends of the direction, this is the side material effect of the high pressure roller mill

The edge material effect will not only reduce the extrusion force of the overall high-pressure roller mill, thereby reducing the processing capacity of the high-pressure roller mill, but also cause uneven discharge particle size of the high-pressure roller mill due to the coarseness of the edge material. The particle size of the side material is obviously coarser than that of the intermediate material

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