濃相正壓氣力輸送系統在實(shí)際運行中會(huì )出現各種故障，以下是一些故障排除案例：

　　The dense phase positive pressure pneumatic conveying system may encounter various malfunctions during actual operation. Here are some troubleshooting cases:

　　正壓氣力輸送倉泵

　　Positive pressure pneumatic conveying bin pump

　　管道堵塞故障排除案例

　　Troubleshooting case of pipeline blockage

　　故障現象：某廠(chǎng)1號爐頂棚過(guò)熱器泄漏后，濃相正壓飛灰氣力輸送系統堵管故障頻發(fā)，一級電場(chǎng)灰斗出料口處灰板結嚴重，倉泵落料不暢，發(fā)“灰斗高料位”報警。

　　Fault phenomenon: After the leakage of the top superheater of the No. 1 furnace in a certain factory, the blockage of the dense phase positive pressure fly ash pneumatic conveying system occurred frequently. The ash plate at the discharge outlet of the first level electric field ash hopper was severely consolidated, and the feeding of the bin pump was not smooth, resulting in an "ash hopper high material level" alarm.

　　原因分析：鍋爐受熱面泄漏，飛灰吸附大量水分，使灰的粘性增加，內摩擦增大，流動(dòng)性差，流動(dòng)阻力增大，從而造成堵管。

　　Cause analysis: Boiler heating surface leakage, fly ash adsorption of a large amount of moisture, increased ash viscosity, increased internal friction, poor fluidity, increased flow resistance, resulting in pipe blockage.

　　解決措施：停爐后，組織人工放灰，徹底清空灰斗。同時(shí)，規范運行操作，在鍋爐點(diǎn)火前12小時(shí)投運靜電除塵器各加熱器，確?；叶泛透鹘^緣件的干燥，檢查各加熱器系統的電流是否正常。

　　Solution: After shutting down the furnace, organize manual ash discharge and thoroughly empty the ash hopper. At the same time, standardize the operation and put each heater of the electrostatic precipitator into operation 12 hours before boiler ignition to ensure the dryness of the ash hopper and insulation components, and check whether the current of each heater system is normal.

　　倉泵進(jìn)料閥密封失靈故障排除案例

　　Troubleshooting case of sealing failure of the feed valve of the warehouse pump

　　故障現象：某廠(chǎng)1號爐一級電場(chǎng)輸灰管道輸送壓力偏高，將倉泵進(jìn)料時(shí)間逐漸調減后有所好轉，但只要增加倉泵進(jìn)料時(shí)間，輸灰管道便出現堵塞現象。

　　Fault phenomenon: The conveying pressure of the ash pipeline in the first stage electric field of the No.1 furnace in a certain factory is too high. After gradually reducing the feeding time of the bin pump, there is some improvement. However, as long as the feeding time of the bin pump is increased, the ash pipeline will become blocked.

　　原因分析：經(jīng)檢查確定，4室1電場(chǎng)倉泵進(jìn)料圓頂閥閥芯陶瓷密封片與金屬閥芯間松脫，已不能起到密封作用，導致倉泵正常進(jìn)料后輸送異常。

　　Cause analysis: After inspection, it was determined that the ceramic sealing plate and metal valve core of the dome valve core of the electric field chamber pump in Room 4 were loose, which could no longer provide a sealing effect, resulting in abnormal delivery of the chamber pump after normal feeding.

　　解決措施：更換進(jìn)料圓頂閥的閥芯陶瓷密封片，恢復其密封性能。

　　Solution: Replace the ceramic sealing plate of the feed dome valve core to restore its sealing performance.

　　灰庫切換閥故障排除案例

　　Troubleshooting case of ash silo switching valve

　　故障現象：某廠(chǎng)1號爐一級電場(chǎng)輸灰管道自1號灰庫切換至2號灰庫后，輸送壓力偏高，后來(lái)發(fā)展為輸灰管道頻繁堵塞，將倉泵進(jìn)料時(shí)間由原60秒逐步調整為5秒后，仍無(wú)好轉。

　　Fault phenomenon: After switching the ash conveying pipeline of the first stage electric field of the first furnace in a certain factory from the first ash silo to the second ash silo, the conveying pressure was too high, which later developed into frequent blockage of the ash conveying pipeline. After gradually adjusting the feeding time of the bin pump from the original 60 seconds to 5 seconds, there was still no improvement.

　　原因分析：倉泵停止進(jìn)料，執行吹掃程序時(shí)，吹掃壓力降至0.1Mpa時(shí)不再下降，經(jīng)逐段排堵，確定原因為一級電場(chǎng)輸灰管道至2號灰庫切換閥閥芯脫落呈半開(kāi)狀態(tài)，導致管道通流不暢。

　　Cause analysis: When the bin pump stopped feeding and the blowing program was executed, the blowing pressure dropped to 0.1Mpa and no longer decreased. After step-by-step blockage removal, it was determined that the cause was the detachment of the valve core of the switching valve from the first stage electric field ash conveying pipeline to the second ash silo, which was in a semi open state, resulting in poor pipeline flow.

　　解決措施：修復或更換灰庫切換閥，確保閥門(mén)正常開(kāi)閉。

　　Solution: Repair or replace the ash silo switching valve to ensure that the valve opens and closes normally.

　　進(jìn)料閥泄漏故障排除案例

　　Troubleshooting case of leakage in feed valve

　　故障現象：輸送時(shí)氣壓大部分從泄露處吹向料倉或灰斗，實(shí)際上物料仍存于管道內部。當管道壓力下降到設定的空管壓力后，系統默認空管，再次進(jìn)料輸送，如此反復，最終造成管道堵塞。

　　Fault phenomenon: During transportation, most of the air pressure is blown from the leakage point towards the material bin or ash hopper, but in reality, the material is still stored inside the pipeline. When the pipeline pressure drops to the set empty pipe pressure, the system defaults to empty pipe and feeds the material again. This process repeats repeatedly, ultimately causing pipeline blockage.

　　原因分析：進(jìn)料閥密封損壞，導致泄漏。

　　Cause analysis: The sealing of the feed valve was damaged, resulting in leakage.

　　解決措施：停止進(jìn)料，關(guān)閉手動(dòng)檢修閥和出料閥，將系統切換到就地輸送。打開(kāi)吹堵閥，先將管道疏通，待管道壓力下降到空管壓力后，再打開(kāi)進(jìn)氣閥。當倉泵內壓力達到設定值后，打開(kāi)出料閥，同時(shí)再次打開(kāi)吹堵閥。待整套系統內管道壓力都達到空管壓力后，關(guān)閉進(jìn)氣閥、吹堵閥，更換進(jìn)料閥，將系統切換到自動(dòng)輸送。

　　Solution: Stop feeding, close the manual maintenance valve and discharge valve, and switch the system to local conveying. Open the blow off valve, first clear the pipeline, and then open the intake valve after the pipeline pressure drops to the pressure of the empty pipe. When the pressure inside the warehouse pump reaches the set value, open the discharge valve and at the same time, open the blow off valve again. After the pipeline pressure in the entire system reaches the pressure of the empty pipe, close the intake valve and blow off valve, replace the feed valve, and switch the system to automatic conveying.

　　本文由 氣力輸送系統  友情奉獻.更多有關(guān)的知識請點(diǎn)擊  http://www.mengjianfilm.com/  真誠的態(tài)度.為您提供為全面的服務(wù).更多有關(guān)的知識我們將會(huì )陸續向大家奉獻.敬請期待.

　　This article is a friendly contribution from the pneumatic conveying system For more related knowledge, please click http://www.mengjianfilm.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.　　濃相正壓氣力輸送系統在實(shí)際運行中會(huì )出現各種故障，以下是一些故障排除案例：

　　The dense phase positive pressure pneumatic conveying system may encounter various malfunctions during actual operation. Here are some troubleshooting cases:

　　正壓氣力輸送倉泵

　　Positive pressure pneumatic conveying bin pump

　　管道堵塞故障排除案例

　　Troubleshooting case of pipeline blockage

　　故障現象：某廠(chǎng)1號爐頂棚過(guò)熱器泄漏后，濃相正壓飛灰氣力輸送系統堵管故障頻發(fā)，一級電場(chǎng)灰斗出料口處灰板結嚴重，倉泵落料不暢，發(fā)“灰斗高料位”報警。

　　Fault phenomenon: After the leakage of the top superheater of the No. 1 furnace in a certain factory, the blockage of the dense phase positive pressure fly ash pneumatic conveying system occurred frequently. The ash plate at the discharge outlet of the first level electric field ash hopper was severely consolidated, and the feeding of the bin pump was not smooth, resulting in an "ash hopper high material level" alarm.

　　原因分析：鍋爐受熱面泄漏，飛灰吸附大量水分，使灰的粘性增加，內摩擦增大，流動(dòng)性差，流動(dòng)阻力增大，從而造成堵管。

　　Cause analysis: Boiler heating surface leakage, fly ash adsorption of a large amount of moisture, increased ash viscosity, increased internal friction, poor fluidity, increased flow resistance, resulting in pipe blockage.

　　解決措施：停爐后，組織人工放灰，徹底清空灰斗。同時(shí)，規范運行操作，在鍋爐點(diǎn)火前12小時(shí)投運靜電除塵器各加熱器，確?；叶泛透鹘^緣件的干燥，檢查各加熱器系統的電流是否正常。

　　Solution: After shutting down the furnace, organize manual ash discharge and thoroughly empty the ash hopper. At the same time, standardize the operation and put each heater of the electrostatic precipitator into operation 12 hours before boiler ignition to ensure the dryness of the ash hopper and insulation components, and check whether the current of each heater system is normal.

　　倉泵進(jìn)料閥密封失靈故障排除案例

　　Troubleshooting case of sealing failure of the feed valve of the warehouse pump

　　故障現象：某廠(chǎng)1號爐一級電場(chǎng)輸灰管道輸送壓力偏高，將倉泵進(jìn)料時(shí)間逐漸調減后有所好轉，但只要增加倉泵進(jìn)料時(shí)間，輸灰管道便出現堵塞現象。

　　Fault phenomenon: The conveying pressure of the ash pipeline in the first stage electric field of the No.1 furnace in a certain factory is too high. After gradually reducing the feeding time of the bin pump, there is some improvement. However, as long as the feeding time of the bin pump is increased, the ash pipeline will become blocked.

　　原因分析：經(jīng)檢查確定，4室1電場(chǎng)倉泵進(jìn)料圓頂閥閥芯陶瓷密封片與金屬閥芯間松脫，已不能起到密封作用，導致倉泵正常進(jìn)料后輸送異常。

　　Cause analysis: After inspection, it was determined that the ceramic sealing plate and metal valve core of the dome valve core of the electric field chamber pump in Room 4 were loose, which could no longer provide a sealing effect, resulting in abnormal delivery of the chamber pump after normal feeding.

　　解決措施：更換進(jìn)料圓頂閥的閥芯陶瓷密封片，恢復其密封性能。

　　Solution: Replace the ceramic sealing plate of the feed dome valve core to restore its sealing performance.

　　灰庫切換閥故障排除案例

　　Troubleshooting case of ash silo switching valve

　　故障現象：某廠(chǎng)1號爐一級電場(chǎng)輸灰管道自1號灰庫切換至2號灰庫后，輸送壓力偏高，后來(lái)發(fā)展為輸灰管道頻繁堵塞，將倉泵進(jìn)料時(shí)間由原60秒逐步調整為5秒后，仍無(wú)好轉。

　　Fault phenomenon: After switching the ash conveying pipeline of the first stage electric field of the first furnace in a certain factory from the first ash silo to the second ash silo, the conveying pressure was too high, which later developed into frequent blockage of the ash conveying pipeline. After gradually adjusting the feeding time of the bin pump from the original 60 seconds to 5 seconds, there was still no improvement.

　　原因分析：倉泵停止進(jìn)料，執行吹掃程序時(shí)，吹掃壓力降至0.1Mpa時(shí)不再下降，經(jīng)逐段排堵，確定原因為一級電場(chǎng)輸灰管道至2號灰庫切換閥閥芯脫落呈半開(kāi)狀態(tài)，導致管道通流不暢。

　　Cause analysis: When the bin pump stopped feeding and the blowing program was executed, the blowing pressure dropped to 0.1Mpa and no longer decreased. After step-by-step blockage removal, it was determined that the cause was the detachment of the valve core of the switching valve from the first stage electric field ash conveying pipeline to the second ash silo, which was in a semi open state, resulting in poor pipeline flow.

　　解決措施：修復或更換灰庫切換閥，確保閥門(mén)正常開(kāi)閉。

　　Solution: Repair or replace the ash silo switching valve to ensure that the valve opens and closes normally.

　　進(jìn)料閥泄漏故障排除案例

　　Troubleshooting case of leakage in feed valve

　　故障現象：輸送時(shí)氣壓大部分從泄露處吹向料倉或灰斗，實(shí)際上物料仍存于管道內部。當管道壓力下降到設定的空管壓力后，系統默認空管，再次進(jìn)料輸送，如此反復，最終造成管道堵塞。

　　Fault phenomenon: During transportation, most of the air pressure is blown from the leakage point towards the material bin or ash hopper, but in reality, the material is still stored inside the pipeline. When the pipeline pressure drops to the set empty pipe pressure, the system defaults to empty pipe and feeds the material again. This process repeats repeatedly, ultimately causing pipeline blockage.

　　原因分析：進(jìn)料閥密封損壞，導致泄漏。

　　Cause analysis: The sealing of the feed valve was damaged, resulting in leakage.

　　解決措施：停止進(jìn)料，關(guān)閉手動(dòng)檢修閥和出料閥，將系統切換到就地輸送。打開(kāi)吹堵閥，先將管道疏通，待管道壓力下降到空管壓力后，再打開(kāi)進(jìn)氣閥。當倉泵內壓力達到設定值后，打開(kāi)出料閥，同時(shí)再次打開(kāi)吹堵閥。待整套系統內管道壓力都達到空管壓力后，關(guān)閉進(jìn)氣閥、吹堵閥，更換進(jìn)料閥，將系統切換到自動(dòng)輸送。

　　Solution: Stop feeding, close the manual maintenance valve and discharge valve, and switch the system to local conveying. Open the blow off valve, first clear the pipeline, and then open the intake valve after the pipeline pressure drops to the pressure of the empty pipe. When the pressure inside the warehouse pump reaches the set value, open the discharge valve and at the same time, open the blow off valve again. After the pipeline pressure in the entire system reaches the pressure of the empty pipe, close the intake valve and blow off valve, replace the feed valve, and switch the system to automatic conveying.

　　本文由 氣力輸送系統  友情奉獻.更多有關(guān)的知識請點(diǎn)擊  http://www.mengjianfilm.com/  真誠的態(tài)度.為您提供為全面的服務(wù).更多有關(guān)的知識我們將會(huì )陸續向大家奉獻.敬請期待.

　　This article is a friendly contribution from the pneumatic conveying system For more related knowledge, please click http://www.mengjianfilm.com/ Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.