卧式螺旋卸料沉降系列离心机(Horizontal Centrifuge)

(LW)D系列卧式螺旋卸料沉降离心机((LW)D Series Horizontal Solid-bowl Scroll-discharge Decanter Centrifuge)

文字:[大][中][小]

  

工作原理

  Operating principle

        D系列双转鼓(流体预加速)卧式螺旋自动卸料沉降离心机技术:在离心加速度理论基础之上,根据流体运动原理,增加双转鼓预加速功能结构,避免工作时外界流体物料进入高速旋转的离心机有效工作内腔时,因物料短时间内无法与高速旋转鼓同步形成腔体内流体紊乱区及流体墙现象,降低因流体旋转紊乱造成的物料颗粒对螺旋推料器磨损现象,解决离心机分离后的悬浮液体中比重小的固体排渣困难问题。

 

 
The technique of (LW)D series double-bowl(fluid pre-acceleration)horizontal solid-bowl scroll-discharge decanter centrifuge:Based on the theory of centrifugal acceleration,according to the principle of fluid motion,adds pre-acceleration function structure of double-bowl,then following situations and problems can be avoided or eased:
a. To avoid the phenomenon of fluid turbulence region and fluid wall caused by low rotate speed;
b. To ease spiral pusher’s abrasion caused by material particles in condition of disorder fluid rotating;
c. Make slagging of solid matter of smaller density in suspension fluid easier. 

分离技术

  Separation technique
进料 → 物料加速 → 重力分离 → 排渣 → 排液。
 
Feeding → Material pre-acceleration → Gravity separation → Sediment discharge → Liquid discharge.

分离效果因素

  Separation effect factors
分离因数、有效容腔长径比、预加速、流体稳态。  
centrifuging factor,length to diameter ratio of cavity,pre-acceleration and fluid homeostasis.

现场控制

  Field control

转鼓转速、螺旋推料器差转速、液池深度调节。

 
Bowl rotating speed,rotating speed difference between spiral pusher and bowl,depth of liquid pool.

优势

 
Advantages

适用悬浮状、粘黏性混合液,液清、渣干、排渣顺畅,降速分离、延长设备使用寿命、节能降耗

 
Suitable for suspended and viscous materials;clearer liquid,drier sediment and smooth sediment discharge;deceleration separation extends the service life of equipment;energy-saving.

适用范围

  Scope of application
无挥发性、无毒、非易燃易爆性物料;分离后固渣及清液要求高的场合;混合料液中物理性质多样性的特殊性物料。  
Non-volatile,non-toxic,inflammable and non-explosive materials;occasions with strict requirements to solids and liquids after separation;special materials with a variety of physical properties in mixture

 

 序号
No.
 技术参数 
Parameters

(LW)D 系列卧式螺旋卸料沉降离心机

(LW)D Series Horizontal Solid-bowl Scroll-discharge Decanter Centrifuge

 (LW)D25系列

(LW)D250 Series

 (LW)D36系列

(LW)D360 Series

 (LW)D45系列

(LW)D450 Series

 (LW)D53系列

(LW)D530 Series

 (LW)D64系列

(LW)D640 Series

1

有效长径比

L/D ratio

3~4.0 3~4.0 3~4.0 3~4.0 3~4.0
2

有效腔室容积(L)

Effective volume(L)

18~24 60~82 131~175 206~275 352~468
3

处理能力(m3/h)

Feed rate(m3/h)

1~1.5 3.6~7 8~15 12~25 21~42
4

圆锥形转鼓半锥角

Half-cone angle of cone bowl(°)
15°(20°) 15°(20°) 15°(20°) 15°(20°) 15°(20°)
5

转鼓转速(rpm)

Max rotating speed of bowl(r/m)

(Stepless adjustable)
Max.6000(无级可调) Max.4600(无级可调) Max.4200(无级可调) Max.3500(无级可调) Max.3200(无级可调)
6

分离因数

Max centrifuging factor(Fr)
(Stepless adjustable)
Max.5040(无级可调) Max.4265(无级可调) Max.4440无级可调) Max.3632(无级可调) Max.3670(无级可调)
7

差转速(rpm)

rotating speed difference(rpm)

(Stepless adjustable)
0.5~30(无级可调) 0.5~30(无级可调) 0.5~30(无级可调) 0.5~30(无级可调) 0.5~30(无级可调)
8

润滑方式

Lubrication method

脂润滑

Grease

脂润滑

Grease

脂润滑

Grease

稀油喷射润滑

Jet oil

稀油喷射润滑

Jet oil

9

固体回收率(%)

Solid recovery rate(%)

≥99 ≥99 ≥99 ≥99 ≥99
10

进料含固率(%)(体积比)

Solid ratio of feed material(%)(volume)

1~40 1~40 1~40 1~40 1~40
11

清液含固率(%)

Solid containing rate of clear liquid(%)

≤0.2 ≤0.2 ≤0.2 ≤0.2 ≤0.2
12

主电机功率(kW)

Main motor power(KW)
11 22 37/45 55 75/90/110
13

辅电机功率(kW)

Secondary motor power(KW)
(Generator state)
5.5(发电机状态) 7.5(发电机状态) 11(发电机状态) 11(发电机状态) 15/18.5(发电机状态)
14

整机参考重量(kg)

Reference weight(kg)

≈1850 ≈2450 ≈4600 ≈5280 ≈11000

应用领域

         

Application fields

1、食品领域
      A  动物蛋白:鱼、肉副产品加工、水产品加工、可食用蛋白质回收;
      B  植物蛋白:从大豆、含油种子和豆科植物中提取;
      C  发酵液:酿造浸出液、麦芽汁和酵母的回收;
      D  酿酒:酒糟醪液的处理与回收;
      E  咖啡和茶叶:速溶咖啡和茶叶的提取;
      F  食用油:棕搁油、橄榄油和种子油的澄清;
      G  果汁:从水果、浆果和蔬菜中提取果汁;
      H  果胶:已提炼果胶的回收;
      I  葡萄酒:葡萄汁和葡萄酒的澄清。
 
1. Food
     A  Flesh processing,aquatic products processing and edible protein recovery;
     B  Extract plant protein from soybean,oily seeds and leguminous plants;
     C  Recovery of brewing leach liquor,malt and yeast;
     D  Treatment and recovery of wine lees liquid;
     E  Extract of instant coffee and tea;
     F  Clarification of palm oil,olive oil and seed oil;
     G  Extract juice from fruits,berries and vegetables;
     H  Recovery of refined pectin;
     I   Clarification of grape juice and grape wine.
 
 

2、环保领域
      钻井泥浆、工业废水、市政污水、肥料、有机废水、油漆污泥、塑料分粒、砂砾洗涤水、炼钢废水、烟道脱硫、自来水厂污泥处理。

 
2. Environmental protection
Drilling mud,industrial effluent,waste water of municipal works,fertilizer,organic waste water,paint sludge,plastic particles,gravel washing water,waste water in steel-making,flue gas desulfurization,sewage sludge treatment of waterworks.
3、石油化工领域
      A  矿石加工工业:高岭土和碳酸钙加工、膨润土和二氧化钛生产;
      B  石油/天然气勘探和石油化工工业:石油和天然气的勘探、原油的提炼和相关行业、润滑油添加剂和废油回收;
      C  有机化学工业:有机化学的中间产品和最终产品;
      D  聚合物工业:包括PVC、聚丙烯、聚苯乙烯、合成橡胶和纤维在内的热塑性材料;
      E  无机化学工业:漂白剂、酸、硅石产品和肥料;
      F  酒精生产:酒精酒糟水和糖蜜发酵残渣的处理;
      G  淀粉加工:从小麦、玉米、木薯和马铃薯中提取淀粉;
      H  废液回收:来自上述领域的废液回收和再生。
 
3. Petroleum and chemical industry
     A  Processing of kaolin and calcium carbonate,production of bentonite and titanium dioxide;
     B  Exploration of petroleum oil,natural gas,crude oil refining and related industries,additive of lube oil and waste oil recovery;
     C  Intermediate products and final products of organic chemistry industry;
     D  Thermoplastic materials,includes PVC,polypropylene,polystyrene,synthetic rubber and fiber;
     E  Inorganic chemical industry,includes bleach,acid,silica products and fertilizers;
     F  Treatment of spent wash and molasses fermentation residues;
     G  Extraction of starch from wheat,corn,cassava and potato;
     H  Waste liquid recovery and recycling from above industries.
 
 
4、其他领域:
      制药中间体、各种盐类、粪肥……
 
4. Other fields
Pharmaceutical intermediates,salts and manures,etc.

主要技术特点

         

Main technical features

1、工业化设计
整机设计遵循并综合了工业设计理念,突出了主体结构的稳定性、主机功能性及整机安全性,并有效吸收了设备运行时的动载荷剪切力。
 
 
1. Industrial design
Whole machine set design follows concept of advanced industrial design,ensures stability,functionality and safety of whole machine.Also effectively absorbs shear force of dynamic load during operation.
2、有效规避双转子高速转动共振区现象
在设计转速范围内,整机运转时无明显一阶、二阶共振区现象,轴承座部位全振动烈度控制在2mm/s~4 mm/s之间。避免了高频振动与拍振所造成的设备各零部件的额外疲劳损伤。
 
 
 
 
2. Effectively ease resonance during rotating of bi-rotor
When centrifuge works,there is no obvious first-order and two-order resonance regions within  designed speed range;meanwhile,whole vibration intensity of bearing seat is definited within 2mm/s~4mm/s.All of this eliminates extra fatigue damage to components and assembly units from high frequency vibration during operation and sudden vibration when shut down.
3、彻底消除液环失速现象
彻底消除了整机(特别LW530以上大机型)在重负荷开机或停机过程中液环失速现象,从而避免了因液环失速所造成的整机跳动或剧烈抖动对设备主轴承及螺旋轴承、回转体零部件额外的撞击疲劳损伤。
 
 
 
 
3. Thoroughly eliminate phenomenon of liquid ring stalling 
Phenomenon of liquid ring stalling happens during heavy duty boot or shutdown process of complete set machine,especially for LW530 and even larger models.It would makes bounce or wild shake,causes extra impact fatigue damage to main bearings,screw bearings and inner parts of rotary bowl.Fortunately,our engineers have solved this problem thoroughly.
4、零部件原坯料采用离心铸造与锻造工艺
整机主要零部件原坯料采取离心铸造工艺或整体开模锻造工艺方法制造,彻底规避了传统焊接工艺方法所带来的晶间腐蚀及残余应力释放等质量不可控风险。
 
 
 
4. Unique technique adopt in main component work-blanks
The manufacturing methods of main component work-blanks are adopt centrifugal casting technique and overall mould-making forging technique,thoroughly avoid risks such as inter-granular corrosion and relaxation of residual stress release in welding joint.
5、主机轴承选择
选用瑞典SKF、德国FAG等国际一线品牌的原产地产品。
 
5. Main bearing selection
We use origin bearings of international first-line brands such as SKF,FAG and so on.
6、恒温检验
整机各精加工零部件检验均在恒温条件中进行,确保实际加工质量达到设计精度要求。
 
 
 
6. Constant temperature detection
All fashioning components and assembly units are detected in constant temperature condition,to make sure of actual processing quality meets the requirements of designed precision accuracy.
7、可互换性
同型号的主机旋转体及所有部件,在整机互换性结构设计与关键位置加工工艺及精度的保障下,均具有互换性,更加易于维护,同时也大大提高了设备的可靠性和安全性。
 
 
7. Inter-changeability
Whole machine physical design and processing technique adopted in critical position,ensure all assembly units and bowls of the same centrifuge model interchangeable.It is not only easy to maintain,but also greatly improve the reliability and safety of equipment.
8、轴承拆卸简易、安全
轴承与工件配合面在拆卸时被高压注入的一层油膜分离,从根本上消除它们之间的摩擦,将拆卸时所需的拉力减小90%,降低了拆卸轴承时高精度零部件的损坏风险。
 
 
 
 
8. Simplely and safely in bearing disassemblement  
One layer of oil film is injected into contact surfaces between bearing and work-piece by high-pressure,during disassemblement bearing from the machine,which would fundamentally eliminate friction within different parts.As a result,it would reduce 90% of pulling force and lower the risk of damage to high-precision parts when disassemble bearing.
9、主轴承润滑系统
 
 
A稀油润滑  
① 油泵站控制稀油不间断循环润滑;   
② 喷射式润滑方式,对轴承起到连续清洗、降温润滑作用;
③ 配备滤油系统,保证润滑油清洁度;
④ 配备供油压力蓄能系统,可保证在突发停电时润滑站继续供5~6分钟油压不低于0.4MPa的润滑油;
⑤ 配备油温恒温系统。
 
 
  
 
B脂润滑
① 采用耐极压、抗氧化、抗磨性、抗水冲刷性、耐腐蚀性、耐高温的润滑脂。
② 可选配自动加脂润滑系统,在设定的时间自动对主轴承进行定量加脂。
 
 
 
9. Main bearing lubrication system
There are two kinds of lubrication systems for specific product models:
A. thin oil lubrication
    a.Oil pump offers an uninterruptedly power to ensure oil works circularly;
    b.Jet oil lubrication constantly clean and lubricate bearings and reduce temperature;
    c.Oil filter system ensure lubricant’s cleanliness;
    d.Oil pressure energy storage system ensure lubrication pump offers an extra oil supply(the pressure is no less than 0.4MPa)for 5 to 6 minutes,when power fails accidentally;
    e.Constant temperature system is available.
B.grease lubrication
    a.Adopt a grease with properties of extreme pressure resistance,oxidation resistance,abrasion resistance,water scour resistance,corrosion-proof and high temperature resistance.
    b.Optional automatic grease system fills grease on main bearing at designed hours and quantity.
10、主轴承BH保护装置
主轴承两端设计有保护轴承,正常情况下保护轴承不工作(保护轴承内圈与主轴之间预留一定轴向间隙)。当主轴承在一些不可预期的极限工况中出现突发损伤、主机旋转圆心偏移产生的跳动幅度达到保护轴承内圈与主轴预留的轴向间隙值时,保护轴承开始工作,同时主机自动控制系统检测到轴承位振动值发生突变,设备的紧急停机程序被触发,在保护轴承的作用下平稳停机,保障设备主体部件不受损坏,保证生产安全。
 
 
 
 
 
 
10. Main bearing BH device(patent design)
There are two spare safe bearings at either end of main bearing.When machine works well,they keep certain clearance from bearing inside track to chief axis.When unexpected condition occurs,main bearing got damaged or circle center deviation causing an amplitude of vibration reaches to designed clearance,safe bearings begin to work as main bearing.Meanwhile,computer automatic control system would get a feedback of abnormal vibration value on bearing position immediately,then activates emergency shutdown and goes a smooth shutdown.This system protects machine free from damaging and ensure production safety.
11、GSRL高速入料装置
通过调整螺旋芯管内部设计,在不降低原有分离溶液离心加速度的前提下,缩短物料进入离心机时的跟速时间,减小旋流紊乱,增加分离时间。同时可增大离心机内部工作压力,抑制液体泡沫产生。
优点:延长物料在离心机内部的有效分离时间,提高分离效率,实现在分离所需转速降低10%~12%的同时处理量增加15%~25%;降低清液含固率;减小零部件因物料颗粒引起的磨粒磨损。
 
 
 
 
11. GSRL feeding device(potent design)
New design of internal spiral core tube has got following achieves.Without reducing centrifugal acceleration,shorten triangle belt’s traction time,reduce disorder of swirling flow and extend separation time.Meanwhile increases inner working pressure of centrifuge,and restrains liquid foaming.
Advantages:extend separation time of material;achieves operation capacity goes up to 15%~25% accompany with 10%~12% off from maximum rotating speed;reduce solid containing rate in clean liquid;reduce components and assembly units’abrasion.
12、采用带有渐变式螺旋导程的推料叶片
降低物料对特定螺旋推料叶片的磨损,同时增大出料端对固体渣的压榨力,进一步降低固体渣的含水率。
 
 
12. Spiral pusher blades with gradual change spiral lead
The design would reduces blades’ wear,increase squeezing force on residue at discharge end,to reduce moisture content of residue.
13、HMI人机界面
操作系统采用HMI人机界面,可通过界面实现离心机的各种操作,并可实时监测离心机的工作状态。
 
13. HMI interface
The operating system uses HMI interface,helps to finish all functions of machine and monitor operation state real-time.
14、智能操控系统
控制系统采用PLC可编程控制器,设有手动操作和一键全自动运行两种操作模式,具有螺旋推料器衡差速自动调节功能、螺旋推料器恒扭矩自动调节功能、离心机清洗一键自动完成功能和离心机一键待机等功能。
 
 
 
14. Intelligent operation & control system
Control system uses PLC programmable controller,adopts manual mode and one-key automatic mode,to operate machine.This system could automatically adjusts and keeps:constant differential speed between spiral pusher and rotating bowl;constant torque during the spiral pusher’s running.It also has functions of one-key cleaning and one-key standby.
15、全面安全保护系统
拥有完善的监测系统和报警系统。工作过程中发生过载、短路和缺相情况时对离心机进行保护;对离心机的转速、轴承温度、整机振动等运行参数进行实时监控,并在参数异常时报警停机,保证人员和设备安全。
 
 
 
 
15. Perfect safety protection system
Our products have perfect monitor and alarm system.It could protects centrifuge on occasions of  overloading,shirt circuit or even phase lack.It would monitor key operating data of centrifuge real- time,such as rotating speed,bearing temperature and whole machine set vibration,etc.It would stop centrifuge and gives an alarm when the data is abnormal,ensure personnel safety and equipment normal operation.