An improved idler set device for a slag cooler

Abstract

The invention discloses an improved roller set device of a slag cooler and relates to the technical field of slag cooling equipment and aims to solve the problems that the bearings of existing outdated rotary-drum slag coolers are deep groove ball bearings, the deep groove ball bearings are poor in axial bearing ability, bearing damage is caused easily, and slag cooler shutdown is caused easily. According to the technical scheme, the improved roller set device comprises a plurality sets of roller racks, each set of roller racks comprises two rollers racks which are symmetrically located on twosides of a rotary drum along the axis of the rotary drum, a rotary shaft rotatably penetrates each roller rack, roller parts are mounted on the outer peripheral wall of each rotary shaft, each rollerpart comprises two conical roller bearings and support rings which fixedly sleeve the conical roller bearings; each conical roller bearing comprises an inner ring, an outer ring and rollers, the axisintersection of all the rollers on one conical roller bearing is located on one side, close to the other conical roller bearing, of the conical roller bearing. By replacing the bearings with the conical roller bearings, an original roller set is modified, the axial bearing capacity limit of the bearings is increased, and bearing damage probability is lowered.

Description

technical field [0001] The invention relates to the technical field of slag cooling equipment, in particular to an improved idler group device of a slag cooling machine. Background technique [0002] The drum slag cooling machine is mainly composed of slag feeding pipe assembly, slag feeding device, drum, rotating system, driving mechanism, slag discharging device, cooling water system and electric control device. The slag enters the end of the drum through the slag inlet pipe, and the drum rotates to push the ash and slag to move to the slag discharge end of the drum. The heat of the high-temperature slag is transferred to the inner wall of the inner drum and blades through conduction, convection, radiation, etc. The outer wall of the inner cylinder transfers heat to the cooling medium water in the drum interlayer through forced convection heat exchange, and finally the water takes away the heat of the slag to achieve the cooling effect. [0003] At the present stage, the ...

AI Technical Summary

Problems solved by technology

[0004] However, in the actual operation process, after a long period of operation of the slag cooler, the height of the drum will decrease due to the wear of the support ring and the support ring, and the wear of a certain set of support rings and support rings may be large, which will cause the drum to tilt to a certain extent. Increase the axial force that the roller set needs to bear

Moreover, during the operation process, due to the influence of the working characteristics of the slag cooler, the axial movement of the drum occurs frequently, causing the axial force of the idler group to easily exceed its limit value

[0005] Since the bearings of some old-fashioned roller slag coolers are mostly deep groove ball bearings, their axial force limit is not high. When the axial force on the roller group is too large, the bearings are easily damaged and stop, resulting in Rotation failure of the drum eventually led to the outage of the slag cooler

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