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查询关于WENDEWOLF®太阳能污泥干燥

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WENDEWOLF®太阳能污泥干燥

Mak Water是澳大利亚和新西兰的独家代表®由德国工程公司设计和提供的太阳能污泥干燥技术Ist-Anlagenbau GmbH.
WENDEWOLF.®系统是与慕尼黑大学合作开发的,Ist-Anlagenbau在提供这项技术方面拥有30多年的经验。
全球有超过170个Wendewolf®systems installed at over 100 locations across 11 countries. In Australia there are currently 9 WendeWolf®太阳能污泥烘干机在4个地点运行。

MAK水提供了WENDEWOLF®技术的完整设计,成本核算和技术支持,从概念阶段到最终项目交付。我们提供完整的包,包括设计,供应和安装Wendewolf®系统和相关机电工程,以及温室干燥大厅的设计,供应和安装。所有WENDEWOLF.®系统由Ist-Anlagenbau委托,并由澳大利亚和新西兰的Mak Water支持。MAK水还提供对操作员的进修培训,并为现有设备提供备件和服务。

Wendewolf.®System Overview

WENDEWOLF.®系统包括一个耕地和特纳机,将脱水污泥蛋糕处理成干燥的颗粒产物。WENDEWOLF.®机器安装在封闭的温室建筑或烘干大厅内。温室为防止雨水重新润湿污泥,并捕获太阳辐射以蒸发污泥的水分。WENDEWOLF.®machine spreads, turns over and breaks up the sludge in the bed, as it transports it along the length of the drying hall. The final granulated product at the end of the drying hall is on average approximately 10 mm in size, and can have up to 85% dry solids content. This granulate is suitable for agricultural reuse, as fertilizer, as well as secondary fuel in coal fired power plants or in cement plants.

它是如何工作的?

  • 从低至13%干燥固体含量的脱水污泥饼批次或连续地进入干燥霍尔的前端,或者在生产中连续。该蛋糕加载过程可以是手动(例如尖端卡车或跳过)或自动化(例如皮带或螺旋式输送机)。
  • WENDEWOLF®机器沿着矮人墙上的干燥大厅的长度移动。它在烘干大厅的宽度上传播脱水蛋糕,将其转过来,并沿着干燥大厅的长度运输。在此过程中,将脱水滤饼转化成颗粒产物,其在干燥固体含量范围为约40%至85%。
  • 温室内捕获的太阳辐射导致污泥床的水分蒸发。暖空气是可以运输的水蒸气越多。污泥内部蒸气压和环境空气之间的差异,驱动干燥过程。
  • This process is enhanced by the WendeWolf® machine as it breaks up the sludge, and turns the sludge over to expose moisture-rich sludge to the surface. As the sludge dries and the WendeWolf® machine moves it along the length of the hall, the sludge is transformed from dewatered cake into small granules.
  • In order to avoid an equilibrium between the vapour pressure inside and outside the sludge, the humid air has to be evacuated. This is naturally helped by the fact that water vapour is lighter than dry air. Active and passive ventilation systems are used to control the humidity inside the greenhouse. Ventilation fans installed above the sludge bed force warm air onto the sludge bed to drive evaporation. Water vapour is vented through automated roof vent(s) in the greenhouse. Dry and cooler (than inside) air is pulled in from outside the greenhouse along the length on both sides of the hall.
  • WENDEWOLF.®control strategy to maximise evaporation (for operating with only solar radiation) involves the following. Temperature and relative humidity are monitored inside and outside and inside each hall. The Programmable Logic Controller (PLC) calculates the temperature difference and the absolute water content inside and outside for each hall separately. The respective thresholds can be altered.
  • Due to seasonal variation in solar radiation, the rate of evaporation varies accordingly. As a result, in order to maintain a granular product with a desired minimum dry solids content, the sludge bed depth in the drying hall varies throughout the year. The throughput of a Solar Sludge Dryer system is therefore expressed on a yearly basis.
  • 在干燥大厅末端产生的粒状产品可以从大厅中除去或连续地从大厅中取出。该输出过程可以是手动(例如机械装载机)或自动化(例如输送机)。
  • By reducing the moisture in the dewatered cake from 15% dry solids content to 85% dry solids content in the granulate, there is a 78% reduction in wet mass. This mass reduction is directly proportional to savings in transport costs.

什么部件构成太阳能污泥干燥系统?

A Solar Sludge Drying facility can comprise one or more drying halls. The drying halls can be configured as standalone greenhouses or, two or more drying halls within a greenhouse.

WENDEWOLF.®machine is installed inside a drying hall and runs on two dwarf walls that are 11.3 m apart and 850 mm high, over 124 m in length (equivalent hall length is 130m). The WendeWolf® system contains the following mechanical & electrical equipment as standard:

  • WENDEWOLF®机器i.E.ILLER和TURNER组装
  • 控制硬件和软件,包括操作交换机和机器交换机
  • 包括电源线的Flucoon系统
  • 通风风扇;数量取决于大厅长度
  • 四(4)安全挂绳,紧急停止拉动开关;两(2)台WENDEWOLF®机器和每次进入干燥大厅的一(1)台
  • 一(1)套安装在每个干燥大厅内的气象仪器
  • 沿着烘干大厅的长度安装的位置标签

Common equipment for the complete WendeWolf® Solar Sludge Drying facility include:

  • 一(1)套安装在干燥大厅外面的气象仪器
  • Main Switchboard (for power distribution to each WendeWolf® Operation Switchboard, ventilation fans, greenhouse vents and other miscellaneous equipment)

流程设计考虑因素是什么?

太阳能污泥干燥设施的工艺设计和尺寸由IST - Anlagenbau确定使用建模或过程模拟。每个模拟都需要以下输入:

  • 特定位置的气候数据包括J /cm²的每日辐射,平均每日温度在°C,平均每日相对湿度(数据直接由IST-Anlagenbau而排出)
  • 每月用吨干固体(TDS)治疗污泥量。指定是否每月输入是固定的或变量
  • 脱水污泥蛋糕输入干固体百分比(%DS)含量
  • 干燥颗粒产物产量为干燥固体(%DS)含量的百分比。指定输出目标%DS是否基于最低每月%DS或年度平均%DS
  • 需要将干燥的颗粒状产品储存,必须暂时存放在干燥大厅内,以及所需的储存持续时间
  • 辅助热量可用于安装在大厅里的加热系统。热系统可包括地板加热,热风鼓风机和红外散热器。
  • 用于脱水滤饼的所选系统,加载干燥的颗粒产物输出。
  • 工作阶段的要求
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WENDEWOLF®系统的主要特点

WENDEWOLF.®machine:

  • 控制系统具有预先设置的程序来操作该过程。这些预先设置的程序是操作员可调,并且通过将这些组合成序列,所有工厂操作都是自动的。
    • 装载 - 用于将污泥的进口和压平进入大厅,并在大厅的选定长度上展开大厅的宽度。
    • TURNING – used to turn over the sludge for a selected sludge bed depth, over a selected length in the hall. Turning can occur in both directions; there is no preferred direction.
    • 置换 - 用于将所选择的污泥床深度的污泥移动到大厅中的选定长度。两个方向都会出现位移。
    • 累积 - 用于积聚或储存干燥的颗粒产物
    • 清除(可选) - 用于从大厅尽头去除干燥的颗粒产品,其中可用自动输出系统
  • 可以以批处理模式或连续模式操作,而无需更改编程。
  • Turns over and conveys the sludge homogeneously in one single process along the full width and length of the hall.
  • Can handle dewatered cake input piles up to 110 cm high.
  • 操作(转动和移位)污泥床深度可达40厘米。
  • 储存干燥的颗粒产品高达80cm高。
  • 不接触地板,因此不会损坏地板。在启动Wendewolf®机器的板载传感器用于“映射”地板表面。该过程确定大厅宽度和长度的地板上的最小工作高度。
  • 可用于用湿污泥“背部混合”干燥颗粒(如需要选择)。
  • 使用鲁棒,低磨损,易于维护,可更换可更换耕作工具。