简介：Introduction
旋压式污泥脱水机，（英文名称：Rotarypressfilter）是国际上新发展起来的一种过滤分离机械，是新型的环保装置，具有结构简单、高脱水性能好、结构紧凑、密闭构造、维修管理容易等优点。旋转挤压式污泥脱水机可用于污水处理，也可用于食品工业和医药工业的固液分离。
Rotary press filter is a newly developed filter separation machine in the world. It is a new type of environmental protection device. It has many advantages,such as simple structure, high dewatering performance, compact structure, closed structure, easy maintenance and managemen and so on. Rotary press filter can be used for sewage treatment, but also for solid-liquid separation in food industry and pharmaceutical industry.
最早生产出旋转挤压式污泥脱水机的是加拿大法尼亚公司。现在法尼亚公司在加拿大、美国、英国、法国及日本已有７０多个项目。处理的污泥有城市污水污泥、人畜粪便、造纸污泥、工业污泥等。２００１年日本最大的离心机制造商巴工业株式会社向法尼亚购买专利后也生产旋转挤压式污泥脱水机。相继德国、韩国也生产出旋压式污泥脱水机，机型有所改进。
The earliest manufacturer of the rotary press filter was the Canadian Fania Company. Now Fania has more than 70 projects in Canada, the United States, the United Kingdom, France and Japan. The treated sludge includes urban sewage sludge, human and animal feces, papermaking sludge, industrial sludge and so 0n. In 2001, Japan ’s largest centrifuge manufacturer, Pakistan Industrial Co., Ltd. also produced rotary press filter after purchasing a patent from Fania. Successively, Germany and South Korea also produced rotary press filter,and the models have been improved.
工作原理：Working principle
含泥污水通过药剂调理后进入污泥通道，污泥在环形的通道内被钻有小孔的滤板低速带动，随着通道容积逐渐收缩，水分从两侧滤孔排出。在进口推力和滤网摩擦力的作用下，污泥不断被推向出口，由于末端挡门提供可调节背压，使更多水分被挤出，在达到脱水目的后污泥由挡门开口处不断排出。
The muddy sewage enters the sludge channel after being conditioned by chemicals. The sludge is driven by the filter plate drilled with small holes in the annular channel at a low speed. As the channel volume gradually shrinks, the water is discharged from the filter holes on both sides. Under the action of the inlet thrust and the friction of the filter, the sludge is continuously pushed to the outlet. Due to the adjustable back pressure provided by the end stop, more water is squeezed out. After the dewatering, the sludge is continuously discharged through the opening of the retaining door.
应用领域：Application
市政污水、工业污水、钢铁废水，印染废水，医药废水，洗煤废水，纸浆废水、牲畜粪便脱水、果蔬榨汁废水、餐余废物脱水等。
Municipal sewage, industrial sewage, steel wastewater, printing and dyeing wastewater, pharmaceutical wastewater, coal washing wastewater, pulp wastewater, livestock manure dehydration, fruit and vegetable juice wastewater, meal waste dehydration, etc.
设备特点：Equipment characteristics
适应性强：可适应不同含固率（0.5-10%）的进料，大通道脱水可适应大颗粒或纤维状杂质。
Strong adaptability: It can adapt to the feed with different solid content (0.5-10%). The large channel dehydration can adapt to large particles or fibrous impurities.
脱水率高：通过对转速、进泥量、出口压力的调节，污泥含水率控制在60—80%。
High dehydration rate: By adjusting the rotation speed, mud feed volume, and outlet pressure, the sludge moisture content is controlled at 60-80%.
密封性好：整体密闭结构，无臭气、污泥及污水外溢，确保作业环境良好。
Good airtightness: the overall closed structure, no odor, sludge and sewage overflow, to ensure a good working environment.
无需维护：机体结构简单，低转速不易产生磨损，无易损件，免维护。
No maintenance : the structure of the machine body is simple, low speed is not easy to wear, no wearing parts, and maintenance-free.
调理浓缩：调理、搅拌、混合和浓缩一体化，充分提高脱水效率。
Conditioning and concentration: The integration of conditioning, stirring, mixing and concentration fully improves the dehydration efficiency.
操作简单：PLC控制，自动化程度高，操作简单，工作效率高。
Simple operation: PLC control, high degree of automation, simple operation and high working efficiency.
节省能耗：活运部件少，转速低，能耗为离心机的10%。
Energy saving: fewer live parts, low speed, and energy consumption is 10% of the centrifuge.
结构紧凑：结构紧凑，机体小，安装方便，占地少。
Compact structure: compact structure, small body, easy installation and less floor space.
容易扩充：模块化组合，可按要求扩充过滤转盘。
Easy to expand: modular combination, can expand the filter carousel as required.
噪音极低：机体转速3r/min左右，无噪音。
The noise is extremely low: the body speed is about 3r/min, no noise.
同类型比较 Comparison of the same type
| 项目 | 旋压式脱水机 | 板框式压滤机 | 带式压滤机 | 叠螺机 | 离心机 |
| 集成度 | 高 | 低 | 较低 | 较低 | 高 |
| 密闭性 | 最好 | 最差 | 差 | 差 | 一般 |
| 能耗 | 低 | 较高 | 一般 | 较低 | 很高 |
| 脱水率 | 较干 | 干 | 湿 | 一般 | 一般 |
| 维护性 | 好 | 差 | 较差 | 较好 | 较差 |
| 噪声 | 无 | 较低 | 较低 | 较低 | 高 |
| 拓展性 | 易 | 较难 | 难 | 较易 | 难 |
| 开停机 | 易 | 难 | 较难 | 较易 | 较难 |
| 人机环境 | 好 | 差 | 较差 | 较差 | 差 |
| 冲洗水 | 较少 | 多 | 较多 | 较多 | 少 |
| Item | Rotary press filter | Plate and frame filter | Belt filter | Stacking screw machine | Centrifuge |
| Integration | high | low | lower | lower | high |
|
Hermetic property |
best |
least |
poor | poor | general |
| Energy consumption | low | higher | average | lower | high |
|
Dehydration rate |
drier | dry | wet | average | average |
| Maintenance | good | poor | poorer | better | poorer |
| Noise | no | low | low | low | high |
| Expandability | easy | harder | hard | easier | hard |
| Start and scenter | easy | hard | harder | easier | harder |
| Man-machine environment | good | poor | poorer | poorer | poor |
| Flushing Water | less | much | more | more | little |
旋转挤压脱水机与离心脱水机的比较
Comparison between Rotary press filter and Centrifuge
Comparison between Rotary press filter and Centrifuge
|
|
旋转挤压脱水机 |
离心脱水机 |
|
驱动系统 |
简单，单转子 |
复杂，双转子系统 |
|
转速 |
低速转0.5-3.5rpm |
高转速1500-3500rpm |
|
能耗 |
低能耗：安装功率低，能耗低。 |
高能耗：安装功率大，能耗高。每吨滤渣耗能170kW，其他能耗也不可忽视 |
|
开停机 |
开停机过程简单，短暂；可以经常性开停机 |
复杂，持续时间长；停机后转鼓还能转动一段时间；不可能经常性开停机 |
|
维修 |
在污水处理厂用常规工具即可维修 |
需要运送到制造厂由专业的机械师专门的维修 |
|
不完全操作 |
对于多通道的机型，部分单元的移除或暂停使用不影响其他单元正常运行 |
整改机器同时处于运行状态或停机状态 |
|
振动分析 |
无振动，不需要做振动分析或预防保养 |
振动分析和预防保养很重要，需要对相关人员做专门的培训 |
|
絮凝 |
包括外带可变速搅拌装置的絮凝器，可优化絮凝，减少聚合物的浪费 |
絮凝发生在离心机内部，不易控制，聚合物利用率低消耗量大，增加经费 |
|
可靠性 |
零部件少，低转速和简单设计保证高可靠性 |
零部件多，高转速，功率高，可靠性低 |
|
捕获率 |
高（固相回收率>95%） |
低，若无人看管会更低 |
|
沙砾影响 |
大通道、低速运动，沙砾影响小 |
污泥中的沙砾会造成离心机严重磨损 |
|
长纤维影响 |
大通道、低速运动，可适用于含长纤维状物体污泥 |
高速旋转长纤维状易堵塞在离心机内部 |
|
滤渣干燥度 |
可以得到非常干的滤渣，对进料含水率要求范围广，出料含水率可调 |
对进料含水率要求苛刻，出料不可能可到同等干燥度的滤渣 |
|
润滑系统 |
不需要外部润滑系统 |
通常需要外部润滑系统 |
|
维护费用 |
低 |
高 |
|
其他 |
无需对进料进行破碎处理 |
需要对进料破碎处理 |
| Rotary press filter | Centrifuge | |
| Drive System | Simple, single rotor system | Complex, dual rotor system |
| Rotating speed | Low speed to 0.5-3.5rpm No special requirements | High speed 1500-3500rpm It is necessary to consider the load of the machine on the building, control the noise, and monitor the vibration and temperature of the motor, drum, and spiral |
| Energy consumption | Low energy consumption: Low installation power and low energy consumption. 10kW/ton of filter residue | High energy consumption: large installation power and high energy consumption.The energy consumption offilter residue is 170kW/ton,and otherenergy consumption cannot be ignored |
| Start and stop | The start and stop process is simple and short; it can be started and stopped frequently | Complex and long duration; the drum can still rotate for a period of time after shutdown; it is impossible to start the shutdown frequently |
| Maintenance | Can be repaired with conventional tools in sewage treatment plants | Need to be transported to the manufacturing plant for specialized repair by a professional mechanic |
| Incomplete operation | For multi-channel models, the removal or suspension of someunits does not affect the normal operation of other units | Rectifying the machine needs to be in the running state or stop state at the same time. |
| Vibration analysis | No vibration, no need for vibration analysis or preventive maintenance | Vibration analysis and preventive maintenance are very important, and relevant personnel need to be specially trained. |
| Flocculation | The flocculator includes a variable speed agitator to optimize flocculation and reduce polymer waste. | Flocculation occurs inside the centrifuge, it is not easy to control, the polymer utilization rate is low, the consumption is large, and the cost is increased. |
| Reliability | Fewer parts, low speed and simple design ensure high reliability | Many parts, high speed, high power, low reliability |
| Capture rate | High (solid phase recovery rate> 95%) | Low, lower if left unattended |
| Impact of gravel | Large channel, low speed movement, small impact of gravel. | The gravel in the sludge can cause serious wear on the centrifuge. |
| Long fiber effect | Large channel, low speed movement,suitable for sludge containing long fiber | High-speed rotating long fiber shape is easy to block inside the centrifuge. |
| Filter residue dryness | Can get very dry filter residue, a wide range of requirements for feed moisture content, adjustable outlet moisture content | Strict requirements on the moisture content of the feed, it is impossible to get the filter residue with the same dryness in thedischarge |
| Lubrication system | No external lubrication system required | Usually requires an external lubrication system |
| Maintenance costs | low | high |
| Others | No need to crush the feed | Need to crush the feed |
设备组合：Equipment combination
构造图（一）Structural Diagram I
构造图（二） Structural Diagram II
规格型号Specification model
|
参数 |
处理能力（m3/h） |
泥饼含固率（%） |
主机转速（r/min） |
电机功率 |
主机重量 |
外形尺寸 |
|
YJ600-2L |
4-12 |
60—80% |
1-3 |
2.2 |
2 |
1.4×1.6×1.2 |
|
YJ900-2L |
8-20 |
60—80% |
1-3 |
3.0 |
4.6 |
1.6×1.8×1.5 |
|
YJ1200-2L |
20-40 |
60—80% |
1-3 |
4.0 |
7.5 |
1.8×2.1×1.8 |
脱水流程：Dehydration process
