A device and method for ash hopper material level monitoring and emergency ash unloading for preventing ash accumulation

Abstract

The invention provides an anti-ash-deposition ash bucket material level monitoring and emergency ash discharging device and method, and belongs to the technical field of dedusting and deashing equipment. The device comprises a conventional material discharging system, a bypass ash poking system, an automatic ash discharging system and an emergency alarm system, wherein the conventional material discharging system is arranged at an ash outlet under an ash bucket and comprises a flat gate valve and a star discharger which are connected through a connecting pipe; the bypass ash poking system comprises a bypass ash poking port, a thermocouple, a bypass emergency ash discharging elbow, a bypass emergency ash discharging connecting pipe and a gate valve; the automatic ash discharging system comprises a connector, a gravity flap valve and an automatic ash discharging connecting pipe; and the emergency alarm system comprises radio frequency admittance, a bar type probe and a protection plate. The four systems are mutually combined, the ash bucket material level can be effectively monitored, and emergency ash discharging can be automatically conducted under special conditions, so that safe, stable and efficient ash discharging of the ash bucket of a waste heat boiler is achieved.

Description

technical field [0001] The invention belongs to the technical field of dust removal and ash removal equipment, and in particular relates to an ash hopper material level monitoring and emergency ash unloading device and method for preventing ash accumulation. Background technique [0002] At present, due to the inadequate monitoring of the ash level of the waste heat boiler, it often causes high ash levels in all ash hoppers, which eventually leads to instability or failure of the waste heat boiler system and has to be shut down for maintenance. During normal operation, the ash level in the ash hopper is important information for the ash removal operator to track. The ash removal personnel need to control the material level in the ash hopper, and also need to observe whether the ash hopper is in normal working condition. Dust accumulation, hanging ash, fluffy ash and other ash hopper failures. [0003] With the continuous maturity of domestic waste heat power generation tech...

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Problems solved by technology

[0003] With the continuous maturity of domestic waste heat power generation technology, the requirements for the operation and maintenance of waste heat boilers are getting higher and higher, and the degree of automation of waste heat power generation is also constantly improving. However, there are still many projects where operators still pay attention to boiler dust removal. Insufficient situation, often there will be too much ash accumulation in the ash hopper and even the flue, which seriously threatens the safety of the boiler operation

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