工作原理

    液/固混合流體通過(guò)進(jìn)料管分布于離心機(jī)轉(zhuǎn)鼓內(nèi)，在離心力場(chǎng)作用下，通過(guò)濾片截留固相，濾出液相。持續(xù)進(jìn)料，直至料滿(mǎn)，停止進(jìn)料，如工藝需要時(shí)則對(duì)濾餅進(jìn)行洗滌、提純，同時(shí)將洗滌液渝出。進(jìn)一步脫液，直至達(dá)到分離要求。在全速或中速時(shí)，刮刀將大部分濾餅刮下，完成一次工作循環(huán)。

    GKH采用虹吸原理，增加過(guò)濾動(dòng)力，實(shí)現(xiàn)更低的濾餅含濕率。

Operating principle

The solid and liquid mixture will be fed into the centrifuge drum via feed pipe and distributed evenly all over the inner wall of the drum, at where the solid phase will be retained by filter disk under effect of centrifuge field while liquid phase discharged out of the filtration process. The feeding process will keep going on until the centrifuge drum is fully charged. Filtering cake will be rinsed and purified as necessary and rinsing water will be discharged meanwhile. Then, there comes a further dehydration process till effective separation is achieved. In process of full or moderate speed running, the scrapper will peel off most of the filtering cake and one entire working cycle completed.

GKH' s operation is based on siphon principle, designed with filtering power, resulting in lower water content of filtering cake.

控制流程

Control process

離心機(jī)運(yùn)行由PLC控制，系統(tǒng)按預(yù)設(shè)程序自動(dòng)運(yùn)行。不同的機(jī)型系統(tǒng)有著相應(yīng)的運(yùn)行參數(shù)或調(diào)整范圍，對(duì)特定的工況在調(diào)試和后續(xù)的運(yùn)行中設(shè)定合適的運(yùn)行參數(shù)，滿(mǎn)足分離要求。控制系統(tǒng)對(duì)實(shí)際運(yùn)行過(guò)程中的過(guò)載進(jìn)行自動(dòng)修復(fù)或保護(hù)。

         自動(dòng)控制系統(tǒng)對(duì)離心機(jī)主機(jī)、液壓系統(tǒng)、氣動(dòng)系統(tǒng)、氮?dú)獗Ｗo(hù)系統(tǒng)、閥門(mén)以及與離心機(jī)相關(guān)的泵、閥、物料輸送系統(tǒng)等進(jìn)行控制。

Centrifuge operation is PLC controlled, where the system will run preset program automatically with operation parameters or their adjustment range varying for different models/types of unit. Appropriate operation parameters will be defined and set for specific working condition based on results of testing/commissioning and subsequent operation in the aim to achieve effective separation.

The control system will fix or protect from overload in process of operation automatically.

The automatic control system controls main engine, hydraulic system, pneumatic system, N2 protection system, valves as well as pumps, valves and material conveyance system etc. relating to the centrifuge.

系統(tǒng)集成與安裝

System integration and installation

GK整機(jī)安裝

GK whole system installation

整機(jī)落地安裝：出料接至下層濾餅輸送系統(tǒng)

整機(jī)高架安裝：在本層預(yù)留卸料和濾餅輸送空間

Whole system floor mounted: with discharge port connected to filtering cake conveyance system at next level I

Whole system elevated and installed: space reserved at same level for discharge and filtering cake conveyance

主要特性

u 平板結(jié)構(gòu)，無(wú)基礎(chǔ)安裝，液態(tài)阻尼減振

u 平開(kāi)蓋或全翻蓋形式，液壓鎖緊

u 鴨嘴式布料器，可調(diào)式進(jìn)料裝置，改善布料平衡

u 氣體反吹或螺旋滾刀清除殘余濾餅

u 料層厚度設(shè)定+料層探測(cè)+n次補(bǔ)料，確保濾餅層厚度

u 濾餅不平衡自動(dòng)修復(fù)+過(guò)振動(dòng)待機(jī)保護(hù)

u 霧化洗滌，洗滌定量控制，間隙式/脈沖洗滌

u 高速或中速刮料(可設(shè))

u 洗滌濾液導(dǎo)電率檢測(cè)+出液轉(zhuǎn)換

u 濾液取樣口

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 設(shè)置主軸封、刮刀軸封，軸封壓力比內(nèi)腔高20mbar，廢氣有序排出

u 聯(lián)組傳動(dòng)帶

u 測(cè)速傳感器

u 自動(dòng)軸承補(bǔ)油裝置

u 無(wú)級(jí)分層刮料，堵轉(zhuǎn)自動(dòng)修復(fù)，刮刀刀片耐磨設(shè)計(jì)與防污染設(shè)計(jì)

u 全密閉液壓站，不銹鋼液壓油箱

u 自動(dòng)清洗程序

u 系統(tǒng)全密閉，滿(mǎn)足清潔生產(chǎn)要求

u 電腦、手機(jī)APP遠(yuǎn)程監(jiān)控系統(tǒng)

u 多重保護(hù)：過(guò)振動(dòng)保護(hù)，開(kāi)蓋保護(hù)+鎖緊保護(hù)，電機(jī)過(guò)載保護(hù)，料位探測(cè)過(guò)載保護(hù)，刮刀原位保護(hù)，工序聯(lián)動(dòng)機(jī)械+電氣保護(hù)，氮?dú)獗Ｗo(hù)，靜電接地保護(hù)，故障診斷與待機(jī)保護(hù)，檢修鎖定保護(hù)