【正文】 發(fā)貨，鍍鋅螺栓上不得有油漆。 ? 旋轉(zhuǎn)葉片采用可調(diào)節(jié)的硬質(zhì)可更換 的 耐磨合金板制作，回轉(zhuǎn)下料器的筒體可以從兩側(cè)拆卸，即螺栓連接，但是必須保證嚴(yán)格密封（嚴(yán)禁使用石棉制品），軸承選用 SKF 和進(jìn)口敘利亞 ABC項(xiàng)目工藝閥門招標(biāo)書技術(shù)附件 第 9 頁(yè)，共 72 頁(yè) 密封。 ? 回轉(zhuǎn)鎖風(fēng)閥門尾部必須加裝施耐德的速度開關(guān)（ 型號(hào) XSAV11801）。 ? 設(shè)備供應(yīng)商，需要提交按 1： 1 比例繪制的三視圖 ? 說明書中英文各 8 份。 ? 賣方提供業(yè)主技術(shù)數(shù)據(jù)表 GENERAL The following Design Criteria shall apply to all mechanical equipment. The given Design Criteria identify the minimum equipment requirements. The project specific requirements are outlined in PART III of the Tender Document. For the basic requirements, refer to PART IV11. All equipment to be supplied shall be of robust design and manufacture and shall correspond to state of the art of cement manufacturing technology. Selected equipment shall have a high degree of availability, require minimum maintenance and operate with high efficiency. Electrical and thermal energy consumption shall be low. Equipment shall be designed for heavyduty industrial application, capable of handling very abrasive materials in dusty environments. The equipment shall be suitable for continuous operation at uniform maximum load without adverse effect on the life or maintenance of the equipment under prevailing conditions. Furthermore it shall be suited to all local climatic and operating conditions at the site. Buildings, housings and frames shall be protected against corrosion, especially for plant located in the neighborhood of an ocean or a sea and for equipment handling raw material as slag and petcoke in ambient temperature. Mixing of material with moisture content over 1% with cement or clinker in equipment when the internal temperature is below the dew point shall be forbidden. Equipment as bucket elevator and bag filter and ponents as ducts shall be insulated when the temperature of the casing can go below the dew point of one of the gas ponent. Anti corrosion and anti coating solutions shall be part of the equipment. The equipment shall be designed with sufficient safety margins from the mechanical design and the process performance point of view. It shall be capable of restarting after stopping due to power failure or other processrelated interruption (. interlock). Equipment, subequipment, accessories and internal ponents shall be standardized within the plant, within Holcim Ltd and within suppliers as much as possible. A non standardization is subject to approval by the Project Owner. Finally, the standardization strategy shall be presented in quantity and in quality and is subject to approval by the Project Owner. 1. STANDARD EQUIPMENT Auxiliary Equipment Drives Gear Reducers All speed reducers shall be in accordance with ISO, DIN or AGMA standards and shall be air cooled unless otherwise approved in writing by the Project Owner. All speed reducers shall be selected for motor speeds not to exceed 1500 rpm for 50 Hz motors and 1800 rpm for 60 Hz motors. Reducers shall include filtered air breather (maximum 10 μm) and a magic drain plug. The gear reducers shall be designed for a lifetime of not less than 10039。000 hours of operation. All gear reducers shall have a minimum mechanical rating of: x motor nameplate rating for drives without fluid couplings. The larger of the following for drives with fluid couplings: x required brake power. 敘利亞 ABC項(xiàng)目工藝閥門招標(biāo)書技術(shù)附件 第 10 頁(yè)，共 72 頁(yè) x motor nameplate rating. Gear motors are acceptable for drives up to kW or subject to Project Owners written approval. Shaft mounted gear reducers are acceptable up to 150 kW or subject to Project Owners written approval. Couplings Gear and grid type couplings shall be protected against entry of dust and moisture. Highspeed fluid couplings shall be of the Supplier39。s standard design. External coolers shall be avoided if practical. If external coolers cannot be avoided, then liquid type coolers shall be used. Roller Bearings Permanently greased roller bearings shall be sized for a theoretical lifetime of at least 2439。000 hours. Roller bearings with relubrication facility or continuous oil lubrication shall be sized for a theoretical lifetime of at least 10039。000 hours. For plant items, which normally operate on one shift per day or only occasionally, the lifetime shall be at least 30,000 hours. Isolation Gates and Dampers Isolation gates shall be of guillotine type, zero leakage and preferably with rack and pinion drive unless otherwise approved in writing by the Project Owner. Modulating control dampers shall be of opposed blade louver type, for example fresh air intake dampers. Pneumatically actuated gates shall have position lock devices to allow the release of air during maintenance without gate movement. Airlocks General Application ? Airlocks shall be of rotary type for raw material, raw meal and cement dust. ? Double pendulum type shall be provided for all clinker dust applications. Motor operated units requiring powertoopen and forcetoclose (., fail closed) are required. Gravity operated airlocks are subject to written approval by the Project Owner. ? Minimum size for airlocks shall be 250 mm x 250 mm. ? Airlocks for Feeding Alternative Fuels to Kiln ? Rotary Valve Type: ? Rotary valve shall be of blowthrough type. Dropthrough type only applicable for abrasive materials. ? Valve paddle sealing shall be performed by a flexible seal. ? Bearings shall be protected by pressurized air sealing. ? Casing shall be pressure shock resistant up to 10 bar. ? Flap Valve Type: ? Flap valve shall be of double or triple flap design. ? Minimum open crosssection: ? Solid AFR chips size nominal 50 mm: 500 x 500 mm ? Solid AFR chips size nominal 200 mm: 800 x 800 mm ? Tyres: 139。400 x 600 mm ? Flaps shall be actuated. ? Materials shall be heat resistant to the prevailing temperature at the feeding point. ? VRM Airlocks for Feeding Moist Materials ? T