High-temperature resistant overflow spiral ash discharger

Abstract

The invention provides an overflow spiral ash discharger with the characteristics of high-temperature resistance, long service life and no material leakage. The overflow spiral ash discharger comprises a speed reducer, a transmission mechanism, a shell, a helical shaft, a helical blade, sealing packing and end covers, wherein the helical blade is arranged on the helical shaft which is penetrated through a shell, one end of the helical shaft is connected with the speed reducer through a chain wheel, and the sealing packing is arranged in the end covers on two ends of the shell. The overflow spiral ash discharger is characterized in that the shell is externally provided with a water jacket, the helical shaft is hollow, and working temperature is reduced through cooling water so as to achieve the purpose of high-temperature resistance.

Description

technical field [0001] The invention relates to a spiral ash discharger, in particular to a high temperature resistant overflow spiral ash discharger. Background technique [0002] Spiral ash discharger is a kind of conveying equipment widely used in chemical industry, building materials and other departments. It is mainly used to convey powdery and granular materials and play the role of air lock. Due to the limitations of structure and material, the traditional spiral ash discharger has a working temperature below 400°C, and it is difficult to transport materials with a temperature as high as 650-700°C. If the temperature is too high, the thermal expansion of the screw shaft will increase, and the axial thrust will be overloaded, causing the cycloid reducer to be damaged and the service life will be short. At the same time, the use temperature of the asbestos packing packing at the end cover is below 450°C. If the temperature is too high, the sealing packing will fail eas...

AI Technical Summary

Problems solved by technology

Due to the limitation of structure and material, the traditional spiral ash discharger has a working temperature below 400°C, and it is difficult to transport materials with a temperature as high as 650-700°C

If the temperature is too high, the thermal expansion of the screw shaft will increase, and the axial thrust will be overloaded, resulting in damage to the cycloid reducer and a short service life.

At the same time, the use temperature of the asbestos packing at the end cover is below 450°C. If the temperature is too high, the sealing of the packing will fail, resulting in material leakage and polluting the site environment.

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