LWF臥式螺旋沉降防爆離心機(jī)

工作原理

懸浮液通過進(jìn)料管進(jìn)入轉(zhuǎn)鼓內(nèi)，在離心力場作用下密度較大的固相沉降至轉(zhuǎn)鼓壁上，固相在螺旋的推動(dòng)下從沉降區(qū)至干燥區(qū)后從出渣口排出；澄清的液相從轉(zhuǎn)鼓大端溢流口溢出，實(shí)現(xiàn)固液分離。

LWF為防爆機(jī)型。

Operating principle

Once the suspension fed into the centrifuge drum via feed pipe, solid phase of it of higher density will be settled down and attached to wall surface of the rotor drum under effect of centrifuge field. which will be screw pushed to drying area before it's discharged via slag outlet，the clarified Iiquid phase of it will be overflowed via the overflow port of the rotor drum，hence to realize solid and liquid separation.

LWF is explosion-proof type.

 主要特性

u 轉(zhuǎn)鼓、螺旋等與物料接觸部分材料按使用工況選擇相應(yīng)的耐蝕不銹鋼、雙相鋼或C22

u 高精度轉(zhuǎn)鼓（數(shù)控加工、高精度平衡），高分離因數(shù)，提高分離效率

u 雙變頻共直流母線控制，轉(zhuǎn)鼓、螺旋轉(zhuǎn)速無級(jí)調(diào)整

u 多種潤滑方式：脂潤滑（標(biāo)配）、噴油潤滑、油氣潤滑

u 全自動(dòng)加油裝置

u 螺旋葉片表面噴涂耐磨合金或鑲焊硬質(zhì)合金

u 對(duì)應(yīng)不同的工況，選擇適合的差速器：擺線針輪、行星齒輪或液壓差速器

u 系統(tǒng)全密閉，滿足清潔生產(chǎn)要求

u 多重保護(hù)：過振動(dòng)保護(hù)，開蓋保護(hù)，電機(jī)過載保護(hù)，差速/轉(zhuǎn)矩控制切換，軸承溫度檢測，螺旋推料扭矩保護(hù)，靜電接地保護(hù)，檢修鎖定保護(hù)

u 配置氮?dú)獗Ｗo(hù)系統(tǒng)以及相應(yīng)的防爆措施，滿足防爆要求

u 可集合絮凝劑加藥系統(tǒng)、螺桿泵、流量計(jì)等，組成全套污水處理系統(tǒng)

Main features

Components/parts including drum and screw etc that will be in contact with the feedstock are made of corrosion resistant stainless steel，duplex steel or C22 according to the working condition.

u High precision rotary drum(NC machining，high-precision balance)，high separation factor, improved separation efficieney.

u Dual variable frequency common DC bus control, step-less velocity adjustment of drum and screw;

u A variety of lubrication methods: grease lubrication (standard)，oil injection lubrication，oil and gas Iubrication.

u Fully automatic oil recharging device

u Surface of the spiral vane is sprayed with wear-resistant alloy or welding hard alloy.

u Different differential mechanism is equipped for different working conditions，i.e. cycloid pin, planet gear or hydraulic differential.

u Fully enclosed system satisfying specification of pharma production

u Multiple layers of protection including over-vibration protection，cover opening protection，motor overload protection，differential speed/torque control and switch, bearing temperature detection，screw pushing torque protection，static grounding protection and Iocking protection for maintenance

u N2 protection system and relevant ex-proof measures are equipped to satisfying ex-proof specification

u Can be core part of a waste water treatment system once combined with flocculant dosing system, screw pump, flow meter and other fittings

定制形式  Personal form

轉(zhuǎn)鼓離心鑄造

u 轉(zhuǎn)鼓整體離心鑄造、固熔處理，比較好的穩(wěn)定性

u 更高的強(qiáng)度

u 多種材質(zhì)304、316L、2205、C22、C276

Centrifuga casting of rotor drum

u The rotor drum is made by means of centrifugal casting and solution treatment，which means better stability

u Higher strength

u Can be made of various material including 304、316L、2205、C22、C276

螺旋耐磨處理

u 硬質(zhì)合金鑲片

    碳化鎢合金

    鑲嵌結(jié)構(gòu)

u 表面硬質(zhì)合金噴涂

    推料面碳化鎢合金噴涂

Screw wear-resistance treatment

u Cemented carbide insert

      Tungsten carbide alloy

      Built-in structure

u Cemonted carbide coated surface

      Tungsten carbide coated

差速器

u 擺線針輪差速器

u 行星齒輪差速器

       較大的扭矩輸出

       運(yùn)行穩(wěn)定可靠

u 液壓差速器

       較好的低差速輸出

       差速無級(jí)可調(diào)

       緊湊的結(jié)構(gòu)

Differential mechanism

u Cycloid pin wheel differential

u PIanetary gear differential

        Larger torque output

        Stable and reliable operation

u Hydraulic differential mechanism

        Better Iow differential output

        Differential stepless adjustable

        Compact structure

密閉性能

u 軸封設(shè)計(jì)

    確保工作腔與軸承腔之間有效隔離

u 出渣柔性接口與輸送接口

     按安裝設(shè)計(jì)可以選配柔性接口或輸送接口

Sealing performance

u Shaft seal design

    ensuring effective separation between the working cavity and bearing cavity

u Flexible joint for slag discharge and transfer connection

    Flexible joint or transfer connection for option of installation design

向心泵出液

u 液相通過向心泵抽出，液位可按工藝要求設(shè)定

u 整機(jī)密閉性好

Liquid phase to be discharged by centripetal-pump

u Liquid phase will be discharged by centripetal pump，with liquid level programmable as per process requirements

u Good sealing performance of the whole system

三相分離

u 應(yīng)用于固-液-液分離

u 較重液相向心泵抽出（液面可調(diào)）

u 較輕液相轉(zhuǎn)鼓溢流口溢出（液面可調(diào)）

Three-phase sparation

u Applicable for solid-Iiquid-liquid separation

u Heavier Iiquid to be discharged by centripetal pump (Liquid level adjustable)

u Lighter Iiquid to be overflowed via overflow port of the rotor drum (liquid level adjustable)

技術(shù)參數(shù)  Technical parameter

u LWF技術(shù)參數(shù)同上表

u 長徑比上表中為常規(guī)參數(shù)，可按實(shí)際工況進(jìn)行調(diào)整，以達(dá)到較為理想的分離效果

u Please refer to the Table above for technical parameters for LWF.

u Ratio of length to diameter shown in above Table are generic parameter，which is subject to adjustment base on working conditions in order to achieve satisfying performance of separation.

防爆與密閉

u 整機(jī)密閉

u 軸封設(shè)計(jì)

u 氮?dú)獗Ｗo(hù)系統(tǒng)

u 出渣口接口

u 防爆/隔爆措施     

（詳見防爆技術(shù)應(yīng)用）

Explosion-proof and sealing

u Sealing of the whole system

u Shaft seal design

u N2 protection system

u Slag discharge connection/joint

u Explosion proof and separation measures

 (Refer to Application of Ex-proof Technology for detail)