【正文】 Buyer : Guangdong Guohua Yeudian Taishan Electric Power Plant Project : Taishan Power Plant Phase I 3 x 600MW CBMH Project No. C6196 Contract No. 2020RCC/13069UK Document No. C6196/MM/1 Operating and Maintenance Instructions 20 BOTTOM ASH REMOVAL SYSTEM – UNITS 4 AND 5 ONLY 底渣處理系統(tǒng) 5號機(jī)組 The bottom ash handling system for units 4 and 5 includes the following major equipment: 底渣系統(tǒng)的 5號機(jī)組主要包括下列設(shè)備： Per Unit每臺機(jī)組 i) Bottom Ash Hopper with ash gates帶關(guān)斷門的渣井 1 ii) Submerged Scraper Conveyor (SSC) 刮板撈渣機(jī) 1 iii) Hydraulic Power Pack with 1 nos. Hydraulic Pump 帶 1個液壓泵的液壓動力站 1 No1套 iv) Wheel drives 驅(qū)動輪 11 Under normal operation ash will fall continuously from the bottom of the boiler into a submerged scraper chain conveyor (SSC) where it is cooled and conveyed out of the boiler house. The bottom ash hopper can provide ash storage whilst the integral water trough maintains the boiler seal. Ash is discharged from the SSC to an ash storage silo. 正常工況下，底渣連續(xù)的從鍋爐底部進(jìn)入刮板撈渣機(jī)中，在撈渣機(jī)中底渣被冷卻并送到鍋爐房外。 Periodically ash will be discharged from each ash bin by the operators via the local control panel. 操作人員定期通過就地控制盤對每個渣倉進(jìn)行卸料。 KEY SWITCH主要開關(guān) Two position switch (adjacent to SSC and conveyor). Single key switch per system, irrespective of the quantity of motors utilised. 兩位位置開關(guān)（靠近 SSC 和二級刮板）每個系統(tǒng)單獨一個開關(guān)，與使用多少電機(jī)無關(guān)。ID圖 C6196005 BOTTOM ASH HANDLING SYSTEM – UNIT 5 底渣處理系統(tǒng) 5號機(jī)組 LOGIC DIAGRAMS邏輯圖 C6196101 to C6196107 The timer, counter and other values given in this description are typical. They may be changed during missioning and this should be borne in mind when writing the PLC program. 這里所說的計時器，計數(shù)器和的其他值都是典型值。ID SSC撈渣機(jī) Pamp。 The conveying chain is of the round link design and the wear edges of the flight bars are of abrasive resistant material and are designed to have a minimum of 16000 operating hours. 鏈條屬于圓環(huán)設(shè)計，刮板耐磨板屬于耐磨材料， 工作壽命最少是 16000工作小時 The ash is conveyed up the conveyor incline and deposited via a discharge chute into the ash silo. For maintenance purposes a stairway is provided along the length of the conveyor for access to the silo top and the conveyor inspection doors. 底渣被運輸?shù)叫鄙稳缓笸ㄟ^卸料槽進(jìn)入渣倉。鏈條清洗噴嘴的準(zhǔn)確定位能保證鏈條的清洗，益于渣的傳輸和對下游設(shè)備影響最小。軸承的工作壽命是 40000工作小時。斜升段設(shè)有帶 v形槽的鑄石板以利于撈渣機(jī)渣的脫水。 Seal Trough 水封槽 A water filled stainless steel seal trough mounted on the Bottom Ash Well structure effects the gas seal between the boiler and the hopper. A continuous supply of cooling water into the seal trough overflows into the SSC. 一個裝有水的不銹鋼制的水封槽安放在渣井結(jié)構(gòu)上用以確保鍋爐和渣井之間的密封，連續(xù)供應(yīng)的冷卻水注入水密槽并溢流進(jìn)撈渣機(jī)（ SSC） A series of flushing nozzles are provided on the sides of the seal trough to aid in the removal of entrained ash particles. 一系列的沖洗水噴嘴安裝在水封槽的側(cè)面以助沖走渣塊。 6. BEFORE CARRYING OUT MAINTENANCE WORK ON THE ASH CONVEYING SYSTEM IT IS SUGGESTED THAT THE SYSTEM IS OPERATED UNTIL THERE IS NO MATERIAL INSIDE THE SSC OR ASH CONVEYOR AND CHECK ALL TRANSFER CHUTES FOR BUILD UP OF MATERIAL THAT WOULD FALL DURING MAINTENANCE WORK. 在對底渣系統(tǒng)進(jìn)行維修工作前，確保撈渣機(jī)，二級刮板里沒有物料，而且傳輸槽中也沒有物料的堆積，以防維修時物料落下。 ASH CONVEYOR 撈渣機(jī)、渣井 amp。 3. BEFORE CARRYING OUT ANY OPERATION OR MAINTENANCE WORK PERSONNEL ARE TO FAMILIARISE THEMSELVES WITH ON SITE REGULATIONS AND PRECAUTIONARY INFORMATION REGARDING HEALTH AND SAFETY AND HAZARDS ASSOCIATED WITH CONVEY MATERIAL. 在進(jìn)行維修之前，技術(shù)人員應(yīng)熟悉現(xiàn)場的規(guī)定和任何關(guān)于健康、安全和傳輸材料的危險性的規(guī)定?？刂葡到y(tǒng)以逐步的順序來開關(guān)門，每一個門上都有一個開關(guān)限位來確定門的位置。 溢流水通過一個薄的澄清板然后流過水槽里面的鋸齒板，通過兩個溢流水管道排走。C to +85186。鏈條的向前速度是 米 /分鐘和反轉(zhuǎn)速度是 /分鐘 。碎渣機(jī)的液壓驅(qū)動和液壓油都是來自撈渣機(jī)的液壓動力站。 Buyer : Guangdong Guohua Yeudian Taishan Electric Power Plant Project : Taishan Power Plant Phase I 3 x 600MW CBMH Project No. C6196 Contract No. 2020RCC/13069UK Document No. C6196/MM/1 Operating and Maintenance Instructions 9 DESIGN PARAMETERS設(shè)計參數(shù) Application應(yīng)用 Furnace Bottom Ash Quantity 爐膛渣量 : tph normal /小時正常 : 20 tph maximum 20噸 /小時最大 Bulk Density of Wet Bottom Ash濕渣的密度 : 1300 kg/m3 Cooling Water Temperature 冷卻水溫 : 3338oC Boiler Expansion鍋爐膨脹量 Direction X (towards sides of boiler)x方向 (鍋爐兩側(cè) ) : +/ 48mm Direction Y (towards front of boiler)y方向 (鍋爐前側(cè) ) Front water seal plate前水封插板 10mm Rear water seal plate后水封插板 10mm Direction Z (towards down direction)z 方向 (下側(cè) ) :336mm Bottom Ash Hopper 渣井 Mounting 結(jié)構(gòu) :Self supporting portal frame structure自支撐結(jié)構(gòu) Gas Seal 密封 : Immersion of flap gates into SSC trough排渣門浸入 SSC水槽中 Ash Discharge排渣 :2 off Ash Hopper Openings 2套開口的渣井 Plate Material板的材質(zhì) : Carbon Steel 碳鋼 Internal Lining內(nèi)襯 : Refractory耐火曾 Hopper Spray Nozzles渣井熄火噴嘴 : 16 off 16套 Spray Water Quantity 噴嘴水量 : 30m3/hr intermittent 30m3/小時 間歇的 Seal Trough水封槽 Mounting結(jié)構(gòu) :On Bottom Ash Hopper structure在渣井結(jié)構(gòu)上 Gas Seal密封 :Immersion of boiler seal plate 鍋爐水封板浸入 Trough material 水封槽材質(zhì) : Stainless Steel不銹鋼 Spray Water Quantity噴嘴水量 : Makeup 14m3/hr 補(bǔ)水 14m3/小時 沖洗水 Flushing 55m3/hr intermittent間歇的 Submerged Scraper Conveyor刮板撈渣機(jī) Handling Rate出力 : tph normal operation正常 /小時 : 25 tph maximum operation最大 25 噸 /小時 Chain Size鏈條尺寸 : 36mm diameter直徑 36mm Chain Speed鏈速 : Variable Flight Bar刮板 :200mm deep channel with wear strips 有耐磨條的 200mm深的槽鋼 Conveyor Width (chain centres)傳輸寬度（鏈條中心距） :1800 mm Drive Type驅(qū)動類型 Twin Hagglunds CB280 Hydraulic CB280雙輪液壓驅(qū)動 SSC Chain Takeup Type撈渣機(jī)鏈條張緊類型 : Hydraulic液壓 Casing Material箱體材料 : Carbon Steel碳鋼 Buyer : Guangdong Guohua Yeudian Taishan Electric Power Plant Project : Taishan Power Plant Phase I 3 x 600MW CBMH Project No. C6196 Contract No. 2020RCC/13