氣力輸送輸灰設(shè)備堵管原因：

　　Reasons for blockage of pneumatic conveying ash conveying equipment:

　　1、管道中的灰比較潮濕;

　　1. The ash in the pipeline is relatively damp;

　　2、有異物或塊狀物堵管;

　　2. There are foreign objects or block like objects blocking the pipe;

　　3、氣力輸灰壓力不足;

　　3. Insufficient pneumatic ash conveying pressure;

　　4、下灰時間設(shè)定過長或落灰量過大;

　　4. The setting of the ash removal time is too long or the amount of ash falling is too large;

　　5、輸灰用壓縮空氣品質(zhì)差，含水量大;

　　5. The compressed air used for ash transportation has poor quality and high moisture content;

　　6、輸灰輔助管道脫落。氣力輸送輸灰設(shè)備堵管堵點判斷：

　　6. The auxiliary pipeline for ash transportation has fallen off. Determination of blockage points in pneumatic conveying ash conveying equipment:

　　1、從最后一臺倉泵開始判斷，先打開該段輸灰系統(tǒng)的最后一臺倉泵的入口進料閥，如果入口壓力有下降，則說明該輸灰系統(tǒng)堵點在倉泵后面;

　　1. Starting from the last bin pump, open the inlet feed valve of the last bin pump of the ash conveying system. If the inlet pressure drops, it indicates that the blockage point of the ash conveying system is behind the bin pump;

　　2、若入口壓力沒有下降，則打開倒數(shù)第二臺倉泵的入口進料閥，觀察壓力是否下降，如果下降則說明堵點在倒數(shù)第一和第二臺倉泵之間;

　　2. If the inlet pressure does not decrease, open the inlet feed valve of the second to last bin pump and observe whether the pressure decreases. If it decreases, it indicates that the blockage point is between the first to last and second bin pumps;

　　3、若入口壓力沒有下降，則繼續(xù)依次向前打開倉泵的入口進料閥進行判斷，直到確定堵點位置

　　3. If the inlet pressure does not decrease, continue to open the inlet feed valves of the bin pump in sequence to determine the location of the blockage point

　　氣力輸灰系統(tǒng)堵管處理：

　　Pipe blockage treatment of pneumatic ash conveying system:

　　1、檢查電除塵氣化風(fēng)機及電加熱器的運行情況，若有異常，及時聯(lián)系設(shè)備部維護人員處理，并打開除塵氣化風(fēng)機聯(lián)絡(luò)門，確?；以锤稍?

　　1. Check the operation of the electrostatic precipitator gasification fan and electric heater. If there are any abnormalities, promptly contact the maintenance personnel of the equipment department for handling, and open the contact door of the dust removal gasification fan to ensure that the ash source is dry;

　　2、聯(lián)系設(shè)備部維護人員排除異物或塊狀物;

　　2. Contact the maintenance personnel of the equipment department to remove foreign objects or lumps;

　　3、檢查除灰空壓機運行情況，排查管道是否有漏氣，并及時聯(lián)系設(shè)備部維護人員處理;

　　3. Check the operation of the ash removal air compressor, investigate whether there is any air leakage in the pipeline, and promptly contact the maintenance personnel of the equipment department for handling;

　　4、調(diào)節(jié)下灰時間，減少下灰量;

　　4. Adjust the ash discharge time to reduce the amount of ash discharge;

　　6、加強除灰空壓機、干燥機和儲氣罐的排水;

　　6. Strengthen the drainage of ash removal air compressors, dryers, and air storage tanks;

　　7、聯(lián)系設(shè)備部維護人員重新裝好輸灰輔助管道。

　　7. Contact the maintenance personnel of the equipment department to reinstall the ash conveying auxiliary pipeline.

　　氣力輸送輸灰系統(tǒng)運行中的各種原因及應(yīng)采取的相應(yīng)措施：

　　Various reasons and corresponding measures to be taken during the operation of pneumatic conveying ash conveying system:

　　在氣力輸送輸灰系統(tǒng)運行中常會出現(xiàn)輸灰曲線異常波動、頻繁堵灰、輸灰壓力高但無任何波動頻繁致使輸灰時間超時或輸灰壓力過低、不出力等現(xiàn)象。

　　During the operation of the pneumatic conveying ash conveying system, abnormal fluctuations in the ash conveying curve, frequent blockage of ash, high ash conveying pressure without any fluctuations frequently occur, resulting in the ash conveying time exceeding the time limit, low ash conveying pressure, and no output.

　　下面針對以上提出的幾種異?，F(xiàn)象，結(jié)合自氣力輸送輸灰系統(tǒng)投運以來所發(fā)現(xiàn)的各種原因進行綜合性的分析，并將應(yīng)采取的相應(yīng)措施進行一下概述。

　　Below is a comprehensive analysis of the various abnormal phenomena mentioned above, combined with the various reasons discovered since the operation of the pneumatic conveying ash conveying system, and an overview of the corresponding measures that should be taken.

　　首先說一下氣力輸送輸灰系統(tǒng)壓力過高的原因及處理方法，輸灰壓力過高，輸灰曲線異常頻繁波動、頻繁堵灰的原因主要有以下幾點：

　　Firstly, let's talk about the reasons and solutions for high pressure in pneumatic conveying ash conveying systems. The main reasons for high ash conveying pressure, abnormal and frequent fluctuations in ash conveying curves, and frequent ash blockage are as follows:

　　1.灰質(zhì)差，導(dǎo)致灰量過大，灰分的粒徑過粗，遠遠大于設(shè)計煤種所限定的各種設(shè)計值，使得系統(tǒng)出力超負荷，出現(xiàn)曲線異常波動、頻繁堵灰的現(xiàn)象;

　　1. Poor ash content leads to excessive ash content and coarse ash particle size, far exceeding the various design values limited by the design coal type, resulting in overloaded system output, abnormal curve fluctuations, and frequent ash blockage;

　　2.氣力輸灰除塵的電場因煙氣中灰量過大、灰斗下灰不暢或輸灰系統(tǒng)停運時間較長、輸灰不及時等各種原因?qū)е禄叶钒l(fā)高料位報警，而按照規(guī)定停運電場且停運時間較長、停運電場較多或電場因內(nèi)部原因無法正常投運，灰斗內(nèi)均為經(jīng)自然沉降下來的煙氣中大顆粒的灰粒;

　　2. The electric field of pneumatic ash conveying and dust removal may trigger a high material level alarm in the ash hopper due to various reasons such as excessive ash content in the flue gas, poor ash discharge from the ash hopper, long shutdown time of the ash conveying system, and untimely ash conveying. However, if the electric field is shut down for a long time according to regulations, or if there are many shutdowns of the electric field, or if the electric field cannot be put into operation due to internal reasons, the ash hopper will be filled with large particles of ash from the flue gas that have naturally settled down;

　　3.輸灰管的內(nèi)套管大面積脫落、壓力罐內(nèi)噴嘴脫落較多、輸灰管內(nèi)有異物堵塞管道或電動分路閥閥芯脫落，造成輸灰不暢;

　　3. The inner sleeve of the ash conveying pipe has fallen off extensively, the nozzle in the pressure tank has fallen off more frequently, there are foreign objects blocking the pipeline or the valve core of the electric shunt valve has fallen off, resulting in poor ash conveying;

　　4.輸灰壓縮空氣管路上的手動閥開度調(diào)整不當(dāng)、閥門內(nèi)漏嚴重、供氣管路泄露或氣動閥門失靈、指示錯誤、門芯脫落，導(dǎo)致空壓機供氣系統(tǒng)出力不足;

　　4. Improper adjustment of the manual valve opening on the compressed air pipeline for ash transportation, severe valve leakage, gas supply pipeline leakage or pneumatic valve failure, incorrect indication, and door core detachment, resulting in insufficient output of the air compressor's gas supply system;

　　5.氣力輸灰飛灰較濕、黏度大不易輸送;

　　5. Pneumatic ash conveying: Fly ash is relatively wet and has high viscosity, making it difficult to transport;

　　6.壓力罐料位計不準或失靈，造成壓力罐內(nèi)裝灰過多。

　　6. The level gauge of the pressure tank is inaccurate or malfunctioning, resulting in excessive ash filling inside the pressure tank.

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