Rake Type Bar Screen[2]
Overview
The Rake Type Bar Screen is a fundamental component in water and wastewater treatment systems. Designed to intercept and remove large debris from flowing water, it prevents downstream equipment damage and process disruptions. The system consists of parallel bars forming a screen surface, with a mechanized rake that periodically cleans the accumulated material. These screens are typically installed at the headworks of treatment plants or water intake points. They serve as the first line of defense against branches, plastics, rags and other large objects that could damage pumps or clog subsequent treatment processes. Modern designs incorporate automation for efficient operation with minimal human intervention.
Structure and Working Principle
A Rake Type Bar Screen comprises three main components: the bar screen itself, the rake mechanism, and the drive system. The screen consists of parallel bars spaced 10-50mm apart, mounted in a channel. The rake, equipped with cleaning teeth, moves along these bars to remove trapped debris. The working principle involves water flowing through the stationary bars while solids are retained. At programmed intervals or triggered by differential pressure, the rake activates, traveling upward to scrape collected materials to a disposal area. Some advanced models feature continuous cleaning mechanisms for high-load applications. The drive system typically uses electric motors with gear reducers for reliable operation.
Key Features
Modern Rake Type Bar Screens offer several important features. Corrosion-resistant construction using stainless steel ensures longevity in harsh wastewater environments. Adjustable bar spacing allows customization for different applications, from fine screening in drinking water plants to coarse screening in combined sewer systems. Automation is a standout feature, with many models incorporating programmable logic controllers (PLCs) for optimal cleaning cycles. Some include self-cleaning mechanisms and debris washing systems. Safety features like overload protection and emergency stops are standard. High-efficiency designs minimize head loss while maximizing debris capture rates.
Application Areas
Rake Type Bar Screens find application across various water treatment scenarios. Municipal wastewater treatment plants use them extensively at facility inlets. Industrial plants employ them for process water screening in food processing, paper mills, and chemical manufacturing. They're equally vital in raw water intake systems for power plants, desalination facilities, and irrigation networks. Specialized versions serve in stormwater management and combined sewer overflow applications. The technology adapts to both small community systems and large metropolitan treatment facilities with equal effectiveness.
Maintenance and Precautions
Proper maintenance ensures long service life and reliable operation. Regular inspection of rake teeth for wear and bar screen for deformation is essential. Lubrication of chains, guide rails, and bearings should follow manufacturer schedules. Operators should monitor for unusual noises or vibrations that may indicate mechanical issues. Electrical components require protection from moisture. During freezing conditions, special precautions prevent ice accumulation. Safety protocols must be followed during maintenance to prevent injuries from moving parts.
B2B Procurement Guide
When procuring Rake Type Bar Screens, consider flow capacity, channel dimensions, and debris characteristics. Specify material grades suitable for your water chemistry - SS316 offers better corrosion resistance than SS304 for saline environments. Evaluate automation needs: basic time-controlled models cost less but differential pressure-controlled systems optimize energy use. Request performance guarantees for debris removal efficiency and hydraulic head loss. Lead times typically range 8-12 weeks for custom configurations. Consider lifecycle costs including energy consumption and maintenance requirements when comparing options.
Related Manufacturers
- 主营：刮泥机、吸泥机、中心传动刮泥机、机械格栅、格栅除污机、格栅清污机、内进流网版格栅除污机、反捞式格栅除污机、钢丝绳格栅除污机、回转式格栅机、循环式格栅机、耙齿式格栅机、周边传动刮泥机、行车式刮泥机、虹吸式刮泥机、桥式吸砂机、滤布滤池、纤维转盘过滤器、转鼓精密过滤器、微滤机、桁架式刮泥机、链条式刮泥机、提耙式刮泥机、刮吸泥机、全桥式刮泥机
- 主营：闸门、螺杆启闭机、卷扬启闭机、清污机、钢制闸门、不锈钢闸门、拍门、启闭机
- 主营：机械格栅机、格栅除污机、不锈钢格栅机、刮泥机、叠螺机
- 主营：铸铁闸门、螺杆启闭机
- 主营：潜水搅拌机、潜水推流器、双曲面搅拌机、回转式格栅除污机、回转耙式格栅除污机、钢丝绳牵引式格栅除污机、桨式搅拌机、框式搅拌机、污泥回流穿墙泵、管道混合器、刮吸泥机、旋转式滗水器、砂水分离器、旋流沉砂器、离心曝气机、射流曝气机、无轴螺旋输送机、沉砂池吸砂机
- 主营：格栅清污机厂家、铸铁镶铜闸门
- 主营：--
- 主营：叠螺机、叠螺污水脱泥机、叠螺式污泥脱水机、耙齿格栅、耙齿格栅除污机、干湿分离机、固液分离机、斜筛式固液分离机、pam加药机、螺旋输送压榨机
- 主营：推流器、搅拌机、曝气机、一体三索式格栅除污机、液下推流泵、慢混推进器、推流搅拌器、潜水推进器、水下推进器、填料推流机、双曲面搅拌器、曝气搅拌两用机、双曲面搅拌设备、填料专用推流机、填料流化推流机
- 主营：钢制闸门、铸铁闸门、钢坝闸门、螺杆启闭机、卷扬启闭机、拍门
- 主营：刮泥机、中心传动刮吸泥机、周边传动刮泥机、机械格栅、格栅除污机、内进流网板式格栅机、钢丝绳格栅除污机、转鼓式格栅机、阶梯式格栅除污机、机械格栅机、内进流网版格栅机、虹吸式刮泥机、桥式吸砂机、行车式刮泥机、全桥式刮泥机、链条式刮泥机、外进水微滤机、内进水微滤机、滚筒式微滤机、纤维转盘过滤器、滤布滤池、转鼓精密过滤器、旋流沉沙器、刮泥机型号、全自动刮泥机
- 主营：电动阀、启闭机、排污机、清污机、钢制拍门、铸铁闸门、污水管道、自动闸门、液压钢坝、玻璃钢闸门、单向止水闸、复合材料拍门、一体钢制闸门、暗杆式钢制闸门、耐腐蚀钢制闸门、水利工程景观坝
- 主营：启闭机、升降坝、拍门阀、细格栅、耙齿格栅、木质闸门、铸铁闸门、圆形拍门、河道水库、排水闸门、液压闸门、液压翻板、手摇卷扬、钢坝闸门、水流调节、液压升降、电动液控、钢制闸门、液压钢坝、闽宏水利、固定卷扬、平板闸门、材料塑料、旋转钢坝、防止水流
- 主营：旋转式固液分离机、皮带输送机、螺旋输送机、转鼓式格栅、回转式机械格栅、钢丝绳牵引格栅、移动式抓斗格栅除污机、内进流网板细格栅、机械格栅、砂水分离器、旋流沉砂池、闸门、悬挂式中心传动刮泥机、周边传动刮泥机、周边传动吸泥机、中心传动单管吸泥机、中心传动浓缩机、液压往复式刮泥机、单轨水下刮泥机、非金属链条刮泥机、滗水器、带式压滤机
- 主营：手电启闭机、电动执行器、铸铁闸门、清污机、钢制闸门、液压钢坝、卷扬机、液压式翻板门
- 主营：中心传动刮泥机、转鼓式精密过滤器、滗水器、机械格栅、回转式格栅除污机、网板格栅、雨水格栅、转鼓格栅、带式压滤机、搅拌机、转碟曝气机、叠螺式污泥脱水机、加药装置、纤维转盘过滤器
- 主营：潜水搅拌机、潜水推流器、双曲面搅拌机、回转式格栅除污机、回转耙式格栅除污机、桨式搅拌机、框式搅拌机、立式环流搅拌机、污泥回流穿墙泵、推流搅拌曝气机、中心传动刮泥机、中心传动浓缩机、周边传动刮泥机、旋转式滗水器、砂水分离器、旋流沉砂器、无轴螺旋输送机、全自动加药装置、无轴螺旋输送压榨机、水翼搅拌机、电动泥斗、悬挂式推流器、射流曝气机、离心曝气机、螺旋压榨机
- 主营：热压罐、硫化罐、木材处理设备、机械格栅、真空压力罐、压力罐、真空罐
- 主营：消防机器人、运输车、漏电探测仪、格栅循环耙齿清污机、巡检机器人、消防箱、防护服、破拆工具、消防灭火装置、交通器材、传感器、电磁阀、测试仪、电动脚手架、装载机电子秤、地磅、纸管切割机、攻丝机、混凝土振动棒、打包机、电动液压冲孔机、研磨机、激光雕刻机、滑移机、洗消剂、防爆风机
- 主营：污水处理设备、固液分离设备、危废间、回转式格栅除污机、焚烧炉、一体化污水处理设备、地埋式污水处理设备、生活污水处理设备、医院污水处理设备、小区污水处理设备、学校污水处理设备、食品污水处理设备、食品加工污水处理设备、屠宰污水处理设备、养殖污水处理设备、农村污水处理设备、城市污水处理设备、城镇污水处理设备、景区污水处理设备、服务区污水处理设备、工厂污水处理设备、造纸污水处理设备、污水处理设备一体机、溶气气浮机、带式压滤机、卧螺离心机
- 主营：顶管机、混凝土搅拌车、护栏打桩机、格栅循环耙齿清污机、工字钢冷弯机、自动上料搅拌车、螺旋筋成形机、钢筋焊网机、等离子切割机、挖机贝型斗、抓木机、混凝土输送泵、螺旋钻机、破碎锤、劈裂机、绳锯机、随车挖、激光整平机、混凝土摊铺机、电动玻璃吸盘、生物质燃烧机、自动排焊机、焊网机、激光切割机、制氮机、扫地车
- 主营：内进流网板格栅除污机、格栅除污机系列、潜水搅拌机
- 主营：潜水搅拌机、潜水曝气机、微纳米曝气机、喷泉曝气机、推流曝气机
- 主营：环保设备、潜水搅拌机、太阳能曝气机、齿耙式格栅清污机、微纳米曝气机、污水处理设备、潜水泵、刮吸泥机、穿墙搅拌器、增氧曝气机、造流增氧机、搅拌两用机、潜水增氧机、曝气增氧机、环流搅拌机、水下增氧机、河道增氧设备、混合搅拌设备、混合增氧设备、曝气搅拌设备、离心式曝气机、双曲面搅拌机、立式混合搅拌器、污水混合搅拌器、景观喷泉曝气机
- 主营：污水拦截、充氧设备、水车增氧机、阶梯格栅、网板格栅、水电站清污机、转鼓式清污机、泥水分离机、智能控制柜、行车吸泥机、气泡发生器、框式搅拌机、螺旋输送机、螺旋压榨机、砂水分离器、潜水搅拌机、环流搅拌机、射流曝气机、河道增氧设备、多规格除污机、固液分离设备、美化增氧设备、微纳米曝气机、河道水体治理、水体循环增氧机
- 主营：格栅机、阶梯格栅、网板格栅、阶梯式格栅、不锈钢孔板格栅、除污机
- 主营：浮筒阀、启闭机、钢制闸门、格栅除污机、复合材料闸门、污水处理拦污栅
- 主营：粗细格栅可定制、潜水搅拌机、曝气机、太阳能曝气机
- 主营：齿耙式格栅清污机、河道增氧给氧机
- 主营：河道曝气机、喷泉曝气机、微纳米曝气机、潜水搅拌机、太阳能曝气机、环保设备
- 主营：FA净水器、厌氧反应器、巴歇尔槽、机械格栅、内进流格栅、滗水器、超滤反渗透、带式浓缩脱水一体机、叠螺机、多介质过滤器、发酵塔、螺旋输送机、皮带输送机、气浮机、浅层砂过滤器、刮泥机、砂水分离器、生物转盘、石灰料仓、微滤机、污泥发酵罐、纤维转盘过滤器、斜管沉淀器、旋流沉砂池、一体化污水处理成套设备