1、37DensadegClarifier 高 密 度 澄 清 池 U An extremely dense and homogenous floc 高度密集而且均匀的矾花 U Optimized flocculation reaction 最优化的絮凝反应 U A high settling rate 极高的沉淀速率 U A high degree of facility compactness 高度紧凑的结构 U Perfectly controlled recirculation flow 完美的回流控制 U Virtually ultimate sludge thickening 彻底的污
2、泥浓缩 U Sludge dewatered without any intermediate thickener 污泥脱水无需预浓缩 U Excellent clarified water quality 卓越的出水水质 U Low sensitivity to loading and flow rate fluctuations 耐负荷及流量变化冲 击 38 Operation the resultant floc has a high level density. Then water slowly transfers to the settling tank to maintain f
3、loc integrity. 在第二个区域中进行慢速絮凝；生成的矾花具有较高的密度。然后水慢速流至沉淀区以保证矾花的完整性。 Settling zone 沉淀区 It is composed of 2 settling sub-zones: 沉淀区由两部分组成： Hindered settling beneath the lamellar: most of the floc settles in this area. 斜管下方的成层沉淀 ：大部分矾花在此区域中沉淀。 Backflow lamellar settling: settling surface area is increased b
4、y using lamellar (hexagonal) modules, used to operate at high velocities. The residual floc is removed in this module producing DensadegClarifier 43 高密度澄清池 the final quality water. 斜管澄清模块 ：使用协管增大了沉淀面积，用于高速运行。在这个模块中，剩余的矾花被去除并生产合格的出水。 Sludge thickening zone 污泥浓缩区 Floc accumulates in the base of the se
5、ttling tank where it thickens in two superimposed bands limited by the recirculation cone: 矾花沉积在沉淀池底部，并在那里由于回流锥的限制分两层进行浓缩： Upper band: the recirculated sludge transit and concentration zone where the sludge remains for several hours. 上层 ：回流污泥通过浓缩区并停留几个小时。 Lower band: final sludge thickening before b
6、lowdown extraction, contact time of approximately one week. 下层 ：在排泥前进行最终的浓缩，停留时间大约为一周。 Sludge is collected by gravity or by a skimmer system equipped with a picket fence in order to promote thickening. A positive displacement pump then routes the sludge to the flocculation zone inlet. 污泥通过重力或一个带有篱栅的
7、刮泥机收集起来。一台螺杆泵将部分污泥回流至絮凝区。 DETAILS OF DENSADEG 高密度澄清池详述 Sketch of Densadeg 高密池简图 A 1 2 3 4 5 B6 C D 744 Operation another dosing pump (one on duty, one as standby) injects lime into the incoming channel of tank. The pumps are controlled by frequency converters according to raw water flow and desired
8、dosing rates. 原水首先流入快速搅拌池，与混凝剂 及石灰 接触后进行混凝，一台快速搅拌器连续运行，以帮助混凝 和碱度去除 反应并避免矾花沉淀。一台投加泵 （一用一备） 将混凝剂投加到快速搅拌池入口；另一台加药泵 （一用一备） 将石灰投加到快速搅拌池进口渠道。通过变频器按照原水流量和需要的投加浓度来控制加药泵的运行。 Reactor tank 反应池 The reactor module is a very important part of Densadegsystem, which determines the results of water and sludge treatm
9、ent; the adjustment must be done perfectly in the reactor. 在高密度澄清池系统中，反应池模块是非常重要的部分，因为该模块决定了水和污泥处理的效果，所以反应池必须合理地调整。 The doses of chemicals depend on the nature of raw water, the concentration of suspended solids and products of softening. This rate must be determined with the most concentrated inlet
10、 water by jar-test (see protocol for jar-test). Following parameters shall be controlled during the jar-test: 药剂的投加量取决于原水的性质、悬浮固体物浓度 及软化反应的产物 。投加量必须按照浓度最高的进水通过烧杯试验来确定（请参考 “烧杯试验 ”一文）。试验中需控制以下参数： Temperature, pH, turbidity, SS, colour, alkalinity etc. of raw water 原水的温度、 pH、浊度、固体悬浮物、色度、碱度等 Optimal pH
11、最佳 pH 值 Optimal doses of reagents 最佳投药量 Sludge production 产泥量 Reactor turbine speed 反应池搅拌器速度 The rotation speed of turbine is designed to ensure a good mixing of the polymer and a good flocculation. If the rotation speed is too high, the flocs run the risk of breaking; too low, sludge may settle dow
12、n inside the reactor. 搅拌器的转速应确保聚合物搅拌充足和絮凝良好。如果转速过高，那么矾花就有被打碎的危险；太低则有污泥在反应区内沉淀的危险。 Sludge recirculation 污泥回流 The purpose of the sludge recycling is to improve the floc growth and to increase the density of the floc. 污泥回流的目的在于加速矾花的生长以及增加矾花的密度。 46 Operation therefore, continuous sludge level increasing
13、 is avoided. 当高密池沉淀区的泥位过高时，污泥排放泵将自动强制启动，污泥排放将自动加速；因此，可以避免泥位的持续升高。 Sludge level in settling tank too low 沉淀区泥位过低 The sludge extraction pump will be automatically forced to stop and, the sludge extraction will be automatically decelerated, if the sludge level in Densadegs settling tank is too low; the
14、refore, continuous sludge level decreasing is avoided. 当高密池沉淀区的泥位过低时，污泥排放泵将自动强制停止，污泥排放将自动减速；因此，可以避免泥位的持续降低。 DensadegClarifier 51 高密度澄清池 Torque on sludge scraper drive too high 刮泥机驱动器扭矩过高 The sludge extraction pump will be automatically forced to start and, the sludge extraction will be automatically
15、 accelerated, if the torque on sludge scraper drive reaches the first setpoint; therefore, undesired high torque on sludge scraper drive is avoided. 当刮泥机驱动器的扭矩达到第一个设定值时，污泥排放泵将自动强制启动，污泥排放将自动加速；因此，可以避免刮泥机驱动器的扭矩过高。 Densadegwill be automatically forced to stop, if the torque on sludge scraper drive reac
16、hes the second setpoint; therefore, damage of sludge scraper drive is avoided. 当刮泥机驱动器的扭矩达到第二个设定值时，高密池将停止运行；因此，可以避免刮泥机损坏。 Poor treatment quality 处理效果差 The turbidity of clarified water is continuously measured; an alarm will be triggered when the turbidity is greater than the set value. 连续测量澄清水的浊度；当浊
17、度高于设定值时将产生报警。 52 Operation & Maintenance Manual for XXXXXXXXXXXXXX XXXXXXXXXXX 厂操作维护手册 DensadegClarifier 53 高密度澄清池 CHAPTER 3 第 3 章 MAIN EQUIPMENT 主要设备 FLOCCULATION TURBINE 絮凝搅拌器 Number 数量 3 Mark 编号 A202A/B/C Supplier 供货商 Dosapro Module 型号 HM3500435/ UP2 Diameter 直径 3500 mm Shaft length 轴长度 4350 mm T
18、ype 类型 lift 提升 Flow rate 流量 9774 - 40728 m3/h Material 材质 carbon steel 碳钢 Rotation speed 转速 4.4 18.5 rpm Motor 配套电机 ： Supplier 供货商 ABB Module 型号 M2QA180L4A B5 Supply voltage 电压 380Vac Rated power 额定功率 22 kW Nominal current 额定电流 40.59 A Power input 输入功率 16.68 kW Nominal frequency 额定频率 50 Hz Rotation
19、speed 转速 1500 rpm Insulation class 绝缘等级 F Protection index 保护等级 IP55 S 工作制 1 3 54 Operation & Maintenance Manual for XXXXXXXXXXXXXX XXXXXXXXXXX 厂操作维护手册 SLUDGE SCRAPER 刮泥机 Number 数量 3 Mark 编号 X202A/B/C Supplier 供货商 Tangshan Yuqing Dimension 尺寸 15 x 15 m DRIVE UNIT OF SLUDGE SCRAPER 刮泥机驱动器 Number 数量 3
20、 Mark 编号 A203A/B/C Supplier 供货商 S.C.M.C Module 型号 PH9 Motor 配套电机 ： Manufacturer 供货商 Simetra-Flender Module 型号 DF68-K4-LOF15-A90L14 Supply voltage 电压 380Vac Rated power 额定功率 1.5 kW Nominal frequency 额定频率 50 Hz Nominal current 额定电流 3.7 A Rotation speed 转速 1405 rpm Gearbox 减速机 ： Manufacturer 供货商 Simetr
21、a-Flender Module 型号 CFA200DF68-A90L14.L16/13N Rotation speed 转速 0.12 0.6 rpm Gear ring 齿盘 ： Module 型号 Rollix Type 06.1250.07.ZZ.10 Protection 保护 grease 黄油 DensadegClarifier 55 高密度澄清池 Torque limiter 扭矩开关 ： Module 型号 DAC2 1330/2000 daN 1stthreshold Tag WSH1 第一限值 6000 mdaN 2ndthreshold Tag WSH2 第二限值 90
22、00 mdaN SLUDGE PUMP 污泥泵 Number 数量 9 Mark 编号 P201A1-3/B1-3/C1-3 Supplier 供货商 SEEPEX Module 型号 BN 70-6L/A1-C1-C6-F0-A-X Flow 流量 11 72 m3/h Pump speed 泵转速 58 326 rpm Delivery pressure 出口压力 2 bar Suction port 吸口 DN150 Discharge port 出口 DN125 Required power 需要功率 8.40 kW Motor 配套电机 ： Module 型号 GST07-2K VC
23、K 160-22 25F Supply voltage 电压 380Vac Rated power 额定功率 11 kW Nominal frequency 额定频率 50 Hz Rotation speed 转速 1450 rpm Insulation class 绝缘等级 F Protection index 保护等级 IP55 S 工作制 1 56 Operation & Maintenance Manual for XXXXXXXXXXXXXX XXXXXXXXXXX 厂操作维护手册 SLUDGE LEVEL DETECTOR 泥位计 Number 数量 3 Mark 编号 AIT20
24、2A/B/C Supplier 供货商 COMETEC Module 型号 2505 Signal output 信号输出 4 20 mA Display 显示 LCD Enclosure 外壳 NEMA 4X Supply voltage 电压 220Vac Nominal frequency 额定频率 50 Hz Sensor 探头 ： Type 类型 ultrasonic 超声波 Module 型号 ROYCE 25SN Measuring range 测量范围 7 m Interface concentration 界面浓度 1 10 g/l Blocking distance 盲区
25、0.3 m from sensor 0.1 m from bottom Resolution 精度 50 mm Protection index 保护等级 IP68 MIXER IN GREASE TANK 浮油池搅拌器 Number 数量 2 Mark 编号 A205A/B Supplier 供货商 Dosapro Module 型号 VRE2060S110/.P Diameter 直径 550 mm Shaft length 轴长度 1100 mm DensadegClarifier 57 高密度澄清池 Type 类型 downward 下压 Flow rate 流量 1059 m3/h Material 材质 SS316L Rotation speed 转速 133 rpm Motor 配套电机 ： Supply voltage 电压 380Vac Rated power 额定功率 0.75 kW Power input 输入功率 0.559 kW Nominal frequency 额定频率 50 Hz Rotation speed 转速 1500 rpm Insulation class 绝缘等级 F Protection index 保护等级 IP55 S 工作制
