【正文】 NNEX 2 Section A / 10 Main Characteristics 主要技術性能 The walking beam cycle is rectangular, with movements carried out at variable speeds, in order to ensure : 步進梁的運動軌跡為矩形，并以不同速度完成每一個運動動作， 以保證 ： A gradual startup and stoppage of the transfer and lifting / lowering movements. 平移和升降運動緩慢啟動及緩慢停止。 A speed to obtain a cycle of a total period which is consistent with the required charging and discharging rates. 獲得一個滿足所需要的裝出料速度的循環(huán)周期。 Vertical lifting and lowering movement 垂直升降 運動 Lifting and lowering of the walking beams are achieved through a set of hydraulic cylinders, causing the lower frame, which is equipped with a series of rollers, to run up and down the inclined bases. During these movements, the transfer cylinder is locked. The synchronization of the lift cylinders is achieved mechanically. 步進梁的提升及下降運動是由液壓缸帶動提升框架（配備有一系列的滾輪）在斜臺面上做上、下運動來完成的。升降運動時，平移液壓缸鎖緊。提升液壓缸的同步是靠機械實現(xiàn)的。 Horizontal transfer movement 平移運動 The transfer movement of the walking beams is achieved by means of a hydraulic cylinder, which acts directly on the upper frame, sliding over the upper rollers of the lower frame. During the transfer movement, the lift cylinders are locked. 步進梁的平移運動是通過液壓缸直接作用于上部平移框架來實現(xiàn)的，平移框架沿提升框架的滾輪運動。平移運動時，提升液壓缸鎖緊。 Idling movement of the walking beams 步進梁中間保持 In the event of an extended stoppage of the mill, the walking beams switch to a holding mode where the moving beams position themselves at the same level as the fixed beams. In this way the stock is supported by all the beams. 當軋機較長 時間停軋時，步進梁系統(tǒng)切換至長時待軋模式，此時活動梁及固定梁處在同一水平位置，所有梁共同支撐著坯料。 Walking Beam cycle data步進梁循環(huán)數(shù)據 Horizontal movement水平行程 ............................................................................. 550 mm Vertical movement升降行程 ..................................................................200 mm (+/100) Cycle time循環(huán)周期 ..................................................................................................... 45 s Ramps斜臺軌 / D – HANDAN ANNEX 2 Section A / 11 Description 描述 The inclined ramps are fabricated structures on which is fixed a machined rail and a back stop. 斜軌臺是 焊接 結構件，經過機加工的軌道固定在一個焊接結構的斜臺面上，斜臺面下端安裝有低位擋塊。 Characteristics 主要性能 Number of ramps 斜臺軌數(shù)量 ............................................................................ 11 pairs對 Angle角度 .................................................................................................................. ~ 11176。 Rail material軌道材質 ............................................................................ Carbon steel 45 Wheels 滾輪 Description 描述 A set of lifting wheels allows the running movement of the lifting frame on the ramps. The wheels on one side of the furnace are shaped for insuring guiding of the lifting frame on the ramps. 提升滾輪用于提升框架在斜臺面上的運動。爐子一側的滾輪形狀可以適應提升框架在斜臺面上的 導向。 A set of transfer wheels allows the running of the transfer frame on the lifting frame. 平移滾輪用于平移框架在提升框架上的運動。 Characteristics 主要性能 Number of lifting wheels提升滾輪數(shù)量 .......................................................................... 22 Number of transfer wheels平移滾輪數(shù)量 ...................................................................... 22 Material滾輪材質 ............................................... 42CrMo4 surface hardened表面硬化處理 Lifting frame 提升框架 Description 描述 The lifting frame consists of a set of beams connected to each other, in which wheels will be fixed. 提升框架由一組梁 組 成， 輪子固定在提升框架上 。 The interconnections between the lift cylinders and lower frame are achieved by a system of swivel joints and connecting rods. 提升液壓缸和提升框架之間的連接是通過一組接頭和連桿系統(tǒng)實現(xiàn)的。 Transfer frame 平移框架 / D – HANDAN ANNEX 2 Section A / 12 Description 描述 The transfer frame supports the walking beams and the water troughs. It is fitted with rails running on the transfer wheels. The transfer frame is made of welded Hsection beam. 平移框架用于固定支撐步進梁和水封槽，并配有在平移滾輪上運行的軌道。平移框架主要由焊 接 H型鋼構成。 The interconnections between the transfer cylinder and the moving upper frame are achieved by a system of swivel joints and connecting rods. 平移液壓缸和平移框架之間的連接是通過一組接頭和連桿系統(tǒng)實現(xiàn)的。 Guiding system 導向系統(tǒng) Description 描述 The guiding of the frames is ensured by guiding units spread along the sides of the lifting frame. Each unit consists of a set of guiding wheel, fixed on the foundation. 框架的導向是由位于平移框架 兩側 的導向 輪組 來確保的，每組 導向 裝置由 一組固定在基礎上的導向輪組構成。 Number of guiding units 導向裝置數(shù)量 ............................................................ 6 sets 6套 Skids and posts 水梁及立柱 Please refer to drawings:17 3027 A 0210 1 P 1000 Skids and pads and 17 3027 A 0000 0 P 0050 Loading diagram. 參見水梁及墊塊圖 17 3027 A 0210 1 P 1000及布料圖 17 3027 A 0000 0 P 0050。 Function 功能 The skids and posts system is a series of water cooled tubes that support the product during its travel inside the furnace. 水梁立柱系統(tǒng)是一組水冷卻管，用于支撐在爐內運行的坯料。 The basic arrangement of the stationary and movable skids has been determined to ensure charging and supporting of the indicated range of stock lengths. 固定梁及活動梁的布置，必須確保規(guī)定長度范圍內的坯料的裝爐和支 撐。 Description 描述 The skids and posts mainly consist of: 水梁立柱主要包括： The skids, made of double tube linked by a plate 水梁，雙管結構，雙管中間用鋼板連接 The pads, welded on the upper skids tubes / D – HANDAN ANNEX 2 Section A / 13 墊塊，焊接在雙管上部的水管上 The posts立柱 The skid and post tubes are cooled by evaporating cooling system and insulated externally by double layer insulation. Stainless steel anchors are welded on the tubes during erection to hold in place the refractory insulation. 水梁立柱系統(tǒng)采用汽化冷卻方式進行冷卻，雙層絕熱包扎 ， 其包扎部位 焊接有不銹鋼錨固