臥式螺旋卸料沉降系列離心機(Horizontal Centrifuge)

LW系列臥式螺旋卸料沉降離心機(LW Horizontal Solid-bowl Scroll-discharge Decanter Centrifuges)

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工作原理

  Operating principle
        分離的目的是將混合料液中不同質量比的物質分離出來:分離形式有固液分離、固固分離、液液分離、固液液分離。
        當混合料液由進料口進入高速旋轉的轉鼓體內腔后,混合液體中比重較大的固性物,在離心力加速度的作用下,重相物質迅速沉降到轉鼓內壁,被螺旋推料器從固相出口排出轉鼓體外;同時比重較小的輕相物質則在離心力的作用下形成內層料液環,通過液相溢流口排出轉鼓體外。轉鼓與螺旋推料器同時高速運轉,由于兩者之間存在一定的轉速差,使得沉降在轉鼓壁上的固性物不間斷地被螺旋推料器推送至出渣口排出,整個分離過程連續進行。
 
The purpose of separation is to separate out substances with different mass ratios from mixed fluid. Separation forms include solid-liquid separation,solid-solid separation,liquid-liquid separation and solid-liquid-liquid separation.
When mixed fluid enters rotating bowl of centrifuge through feed tube,solids with larger density would rapidly deposit on inner wall of the bowl,forced by centrifugal acceleration.Then spiral pusher pushes deposited solids to taper end of the bowl,and discharges them out of centrifuge from residue outlet. Meanwhile,liquid phase with smaller density forms a liquid ring layer and discharges from bowl through overflow port. The bowl and spiral pusher run at a high speed simultaneously,for there exists speed discrepancy,deposited solids on the wall of bowl could be conveyed to residue outlet by spiral pusher.This separation process carry out continuously.

分離技術

  Separation technique
進料→ 重力分離→ 排液→ 排渣。  
Feeding→ Gravitational separation→ Liquid discharge→ Sediment discharge.

分離效果因素

  Separation effect factors
分離因數、有效容腔長徑比、液池深度。  
centrifuging factor,length to diameter ratio of cavity,depth of fluid pool.

現場控制

  Field control
轉鼓轉速、螺旋推料器差轉速、有效流體分離液池深度根據排液口液流板調節。  
Bowl rotating speed,rotative speed difference;between;spiral pusher and bowl,depth of liquid pool.

適用范圍

  Scope of application
無揮發性、無毒、非易燃易爆性物料。  
Non-volatile,non-toxic,inflammable and non-explosive materials.

 

 序號
No.
 技術參數 
Parameters

LW臥式螺旋卸料沉降系列離心機

LW Horizontal Solid-bowl Scroll-discharge Decanter Centrifuge

 Lw25系列

LW250 Series

 LW36系列

LW360 Series

 LW45系列

LW450 Series

 LW53系列

LW530 Series

 LW64系列

LW640 Series

 LW89系列

LW890 Series

1

有效長徑比

L/D ratio

3~4.0 3~4.0 3~4.0 3~4.0 3~4.0 2.8
2

有效腔室容積(L)

Effective volume(L)

18~24 60~82 131~175 206~275 352~468 1020
3

處理能力(m3/h)

Feed rate(m3/h)

1~1.5 3.6~5 8~10 12~18 21~28 61~120
4

圓錐形轉鼓半錐角

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

轉鼓轉速(rpm)

Max rotating speed of bowl(r/m)

(Stepless adjustable)
Max.6000(無級可調) Max.4600(無級可調) Max.4200(無級可調) Max.3500(無級可調) Max.3200(無級可調) Max.2400(無級可調)
6

分離因數

Max centrifuging factor(Fr)
(Stepless adjustable)
Max.5040(無級可調) Max.4265(無級可調) Max.4440無級可調) Max.3632(無級可調) Max.3670(無級可調) Max.3190(無級可調)
7

差轉速(rpm)

rotating speed difference(rpm)

(Stepless adjustable)
0.5~30(無級可調) 0.5~30(無級可調) 0.5~30(無級可調) 0.5~30(無級可調) 0.5~30(無級可調) 0.5~30(無級可調)
8

潤滑方式

Lubrication method

脂潤滑

Grease

脂潤滑

Grease

脂潤滑

Grease

稀油噴射潤滑

Jet oil

稀油噴射潤滑

Jet oil

稀油噴射潤滑

Jet oil

9

固體回收率(%)

Solid recovery rate(%)

≥99 ≥99 ≥99 ≥99 ≥99 ≥99
10

進料含固率(%)(體積比)

Solid ratio of feed material(%)(volume)

2~40 2~40 2~40 2~40 2~40 2~40
11

清液含固率(%)

Solid containing rate of clear liquid(%)

≤0.2 ≤0.2 ≤0.2 ≤0.2 ≤0.2 ≤0.2
12

主電機功率(kW)

Main motor power(KW)
11 22 37/45 55 75/90/110 160/200
13

輔電機功率(kW)

Secondary motor power(KW)
(Generator state)
5.5(發電機狀態) 7.5(發電機狀態) 11(發電機狀態) 11(發電機狀態) 15/18.5(發電機狀態) 37(發電機狀態)
14

整機參考重量(kg)

Reference weight(kg)

≈1850 ≈2450 ≈4600 ≈5280 ≈11000 ≈20000

應用領域

         

Application fields

1、食品領域
      A  動物蛋白:魚、肉副產品加工、水產品加工、可食用蛋白質回收;
      B  植物蛋白:從大豆、含油種子和豆科植物中提取;
      C  發酵液:釀造浸出液、麥芽汁和酵母的回收;
      D  釀酒:酒糟醪液的處理與回收;
      E  咖啡和茶葉:速溶咖啡和茶葉的提取;
      F  食用油:棕擱油、橄欖油和種子油的澄清;
      G  果汁:從水果、漿果和蔬菜中提取果汁;
      H  果膠:已提煉果膠的回收;
      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、環保領域
      鉆井泥漿、工業廢水、市政污水、肥料、有機廢水、油漆污泥、塑料分粒、砂礫洗滌水、煉鋼廢水、煙道脫硫、自來水廠污泥處理。

 
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、石油化工領域
      A  礦石加工工業:高嶺土和碳酸鈣加工、膨潤土和二氧化鈦生產;
      B  石油/天然氣勘探和石油化工工業:石油和天然氣的勘探、原油的提煉和相關行業、潤滑油添加劑和廢油回收;
      C  有機化學工業:有機化學的中間產品和最終產品;
      D  聚合物工業:包括PVC、聚丙烯、聚苯乙烯、合成橡膠和纖維在內的熱塑性材料;
      E  無機化學工業:漂白劑、酸、硅石產品和肥料;
      F  酒精生產:酒精酒糟水和糖蜜發酵殘渣的處理;
      G  淀粉加工:從小麥、玉米、木薯和馬鈴薯中提取淀粉;
      H  廢液回收:來自上述領域的廢液回收和再生。
 
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、其他領域:
      制藥中間體、各種鹽類、糞肥……
 
4. Other fields
Pharmaceutical intermediates,salts and manures,etc.

主要技術特點

         

Main technical features

1、工業化設計
整機設計遵循并綜合了工業設計理念,突出了主體結構的穩定性、主機功能性及整機安全性,并有效吸收了設備運行時的動載荷剪切力。
 
 
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、有效規避雙轉子高速轉動共振區現象
在設計轉速范圍內,整機運轉時無明顯一階、二階共振區現象,軸承座部位全振動烈度控制在2mm/s~4 mm/s之間。避免了高頻振動與拍振所造成的設備各零部件的額外疲勞損傷。
 
 
 
 
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、徹底消除液環失速現象
徹底消除了整機(特別LW530以上大機型)在重負荷開機或停機過程中液環失速現象,從而避免了因液環失速所造成的整機跳動或劇烈抖動對設備主軸承及螺旋軸承、回轉體零部件額外的撞擊疲勞損傷。
 
 
 
 
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、零部件原坯料采用離心鑄造與鍛造工藝
整機主要零部件原坯料采取離心鑄造工藝或整體開模鍛造工藝方法制造,徹底規避了傳統焊接工藝方法所帶來的晶間腐蝕及殘余應力釋放等質量不可控風險。
 
 
 
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、主機軸承選擇
選用瑞典SKF、德國FAG等國際一線品牌的原產地產品。
 
5. Main bearing selection
We use origin bearings of international first-line brands such as SKF,FAG and so on.
6、恒溫檢驗
整機各精加工零部件檢驗均在恒溫條件中進行,確保實際加工質量達到設計精度要求。
 
 
 
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、可互換性
同型號的主機旋轉體及所有部件,在整機互換性結構設計與關鍵位置加工工藝及精度的保障下,均具有互換性,更加易于維護,同時也大大提高了設備的可靠性和安全性。
 
 
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、軸承拆卸簡易、安全
軸承與工件配合面在拆卸時被高壓注入的一層油膜分離,從根本上消除它們之間的摩擦,將拆卸時所需的拉力減小90%,降低了拆卸軸承時高精度零部件的損壞風險。
 
 
 
 
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、主軸承潤滑系統
 
 
A稀油潤滑  
① 油泵站控制稀油不間斷循環潤滑;   
② 噴射式潤滑方式,對軸承起到連續清洗、降溫潤滑作用;
③ 配備濾油系統,保證潤滑油清潔度;
④ 配備供油壓力蓄能系統,可保證在突發停電時潤滑站繼續供5~6分鐘油壓不低于0.4MPa的潤滑油;
⑤ 配備油溫恒溫系統。
 
 
  
 
B脂潤滑
① 采用耐極壓、抗氧化、抗磨性、抗水沖刷性、耐腐蝕性、耐高溫的潤滑脂。
② 可選配自動加脂潤滑系統,在設定的時間自動對主軸承進行定量加脂。
 
 
 
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、主軸承BH保護裝置
主軸承兩端設計有保護軸承,正常情況下保護軸承不工作(保護軸承內圈與主軸之間預留一定軸向間隙)。當主軸承在一些不可預期的極限工況中出現突發損傷、主機旋轉圓心偏移產生的跳動幅度達到保護軸承內圈與主軸預留的軸向間隙值時,保護軸承開始工作,同時主機自動控制系統檢測到軸承位振動值發生突變,設備的緊急停機程序被觸發,在保護軸承的作用下平穩停機,保障設備主體部件不受損壞,保證生產安全。
 
 
 
 
 
 
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高速入料裝置
通過調整螺旋芯管內部設計,在不降低原有分離溶液離心加速度的前提下,縮短物料進入離心機時的跟速時間,減小旋流紊亂,增加分離時間。同時可增大離心機內部工作壓力,抑制液體泡沫產生。
優點:延長物料在離心機內部的有效分離時間,提高分離效率,實現在分離所需轉速降低10%~12%的同時處理量增加15%~25%;降低清液含固率;減小零部件因物料顆粒引起的磨粒磨損。
 
 
 
 
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、采用帶有漸變式螺旋導程的推料葉片
降低物料對特定螺旋推料葉片的磨損,同時增大出料端對固體渣的壓榨力,進一步降低固體渣的含水率。
 
 
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人機界面
操作系統采用HMI人機界面,可通過界面實現離心機的各種操作,并可實時監測離心機的工作狀態。
 
13. HMI interface
The operating system uses HMI interface,helps to finish all functions of machine and monitor operation state real-time.
14、智能操控系統
控制系統采用PLC可編程控制器,設有手動操作和一鍵全自動運行兩種操作模式,具有螺旋推料器衡差速自動調節功能、螺旋推料器恒扭矩自動調節功能、離心機清洗一鍵自動完成功能和離心機一鍵待機等功能。
 
 
 
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、全面安全保護系統
擁有完善的監測系統和報警系統。工作過程中發生過載、短路和缺相情況時對離心機進行保護;對離心機的轉速、軸承溫度、整機振動等運行參數進行實時監控,并在參數異常時報警停機,保證人員和設備安全。
 
 
 
 
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.

 

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