Improved planetary ash hoist

Abstract

The invention discloses an improved planetary ash hoist. A rotor shaft is a lengthening shaft, two ends of the lengthening shaft are installed on a bearing block on a base which forms an integral structure with an end cover. A sealing flange is arranged at an axis hole of the end cover. A wear-resisting bush is arranged on the inner wall of a main case of the planetary ash hoist, a scraper plate is fixedly connected on the end surface of the excircle of a rotor, and the scraper plate and the wear-resisting bush form a matched work pair rotating relatively. The improved planetary ash hoist is supported by adopting a bearing, the friction force between the rotor shaft and the bush is reduced, the rotor can rotate flexibly, and the phenomenon of the scrapping of the whole machine caused by the friction between the rotor and a stator due to the wearing of a conventional copper bush and the sinking of the rotor can be eliminated. A sealing pressing flange ensures that the ash is hoisted without stopping the air blowing, so that the temperature in a kiln can be kept stable, and meanwhile, the work environment is improved. Both the scraper plate and the wear-resisting bush can be replaced when being damaged, so that the service life of the whole machine is prolonged, the production cost is saved greatly. The improved planetary ash hoist serves as the special equipment for lime shaft kiln, is reasonable in design, long in service life, low in construction cost, convenient to maintain and is well received by users.

Description

technical field [0001] The invention relates to an ash unloading device of a gas-fired lime shaft kiln, in particular to an improved star-shaped ash discharger for recovering carbon dioxide from a lime shaft kiln flue gas. Background technique [0002] In the traditional production equipment of the lime shaft kiln, the screw cone ash unloader is set inside the lime shaft kiln body, the star type ash discharger is set outside the lime shaft kiln, the screw cone ash unloader and the star type ash discharger inside and outside the lime shaft kiln Connected by chute. The above-mentioned traditional lime shaft kiln production equipment has the following problems: large volume, occupying a large space in the kiln; the screw-cone ash unloader is easily damaged when working in the harsh environment of dust and high temperature in the kiln; the equipment is expensive and expensive; the design of two sets of power devices It is cumbersome and the screw cone ash unloader is installed ...

AI Technical Summary

Problems solved by technology

[0003] In addition to the above-mentioned shortcomings, the traditional equipment also has the following defects in the star-shaped ash discharge machine: 1. The rotor shaft is only supported and installed on the end covers on both sides of the casing through two shaft copper sleeves, and the shaft copper sleeves are directly connected to the material in the end cover. Contact, the gap between the shaft copper sleeve and the rotor shaft is small, and it is difficult to add lubricating oil. Due to the weight of the rotor and the entry of materials and dust, the shaft copper sleeve is easy to wear and eccentric wear due to long-term work

2. The contact area between the rotor shaft and the shaft copper sleeve is large, and the rotational friction resistance is large, resulting in loss of rotational power and affecting work efficiency

3. The shaft copper sleeve and the rotor shaft have a gap fit. When the shaft copper sleeve is worn and the gap increases, the gap will intensify air leakage and dust leakage, polluting the working environment and destroying the lime kiln during the ash unloading process. Sealability and stability of calcination temperature

5. Since the shaft copper sleeve is installed on both end covers and sleeved on the rotor shaft, the transmission sprocket, end cover and rotor must be removed before the shaft copper sleeve can be replaced during maintenance. It takes at least 4 hours, and the maintenance is very inconvenient

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