最新水平式真空脫濾機功能對比

1、vacuum filtrationcompetiton 真空過濾比較vacuum filters : process steps真空過濾機：工藝步驟 l cake formation, 濾餅形成l cake washing ( if required) 濾餅沖洗（可選） l cake drying 濾餅干燥l cake discharge 濾餅排放vacuum filtration 真空過濾equivalent system with traditionnal pressure filters傳統(tǒng)壓濾機系統(tǒng)傳統(tǒng)壓濾機系統(tǒng)nota : filter # means dual filter for

2、 continuous process注意：每處帶濾機都需要雙倍的帶濾機以滿足連續(xù)工藝的要求vacuum filtration 真空過濾industrial vacuum filtersl filter 過濾機l filtrate receivers 濾液接收灌l(xiāng) vacuum pump 真空泵l filtrate extraction devices 濾液萃取裝置 pumps 泵 barometric pot 開口罐 self extractors tanks 自萃取罐an under vacuum filtration unit is composed by:一臺真空過濾裝置有以下部分組成

3、：industrial vacuum filters工業(yè)用真空過濾機filtrate receiver濾液接收灌cake washing濾餅沖洗slurry料漿cake discharge濾餅排放filtrate濾液vacuum pump真空泵vacuum filter真空過濾機filtrate extraction :濾液抽取濾液抽取extraction pump抽取泵or或者barometric leg開口罐or或者auto-extractor receiver自動抽取器type of equipment 設(shè)備類型 l horizontal belt filter水平帶式過濾機moving

4、 support : belt 移動支撐：皮帶l rotary vacuum drum filter,真空轉(zhuǎn)鼓式過濾機moving support : drum 移動支撐：轉(zhuǎn)鼓l rotary vacuum disc filter, 轉(zhuǎn)盤式過濾機moving support : disc 移動支撐：轉(zhuǎn)盤l table filter 翻盤式過濾機moving support : table 移動支撐：翻盤horizontal vacuum belt filter水平真空帶式過濾及 slurry inletwashinginletdryingwashingfiltrationcakedischar

5、gehorizontal vacuum belt filter 水平真空帶式過濾機features :特點：特點：lsupport (belt) horizontally positioned支撐（皮帶）水平安裝adequate piston effect for washing (either co-current or methodic)優(yōu)化沖洗效果 for settling pulp, optimization of the geometry of the cake優(yōu)化濾餅的顆粒分布lno potential cracks in the cake ( washing efficiency

6、 99%)濾餅內(nèi)部無裂縫（沖洗效率99%）lcan treat difficult slurries ( settable, high viscosity, .) 能處理各種有難度的料漿（高粘稠性）lno residual volume無殘留l wide range of adjustment for operation ( feed solid content may vary),運行寬度的調(diào)節(jié)（進料固體的含量會變化）llow maintenance cost ( because of updated engineering) 低維護成本（以為最新的技術(shù)）lno need of protra

7、cted supervision,無須長時間的現(xiàn)場監(jiān)管l exceptional utilization rate ( 98%)優(yōu)異的利用率（98%）horizontal vacuum belt filter 水平真空帶式過濾機disadvantages :缺點：缺點：lspace required,l需要的空間l incompatibility with solvents,l和溶劑不相溶 ltotal hooding ( tight enclosed) is difficult for important surfaces.對重要表面做整體護罩很困難rotary vacuum drum fi

8、lter 轉(zhuǎn)鼓式真空過濾機 rotary vacuum drum filter 轉(zhuǎn)鼓式真空過濾機features特點特點hlow space requirement ,所需空間小hpossibility to cover filter,可覆蓋過濾機hpossibility to make a airtight filter,h可以做成密封的過濾機hhigh availability ( 95%) ,高利用率( 95%) hlow investment cost , operation cost, power cost,h低投資，運行成本，能耗成本hprocess flexibility (nr

9、, ts, np, rl, rp, string, ca, sp types )工藝的靈活性hmay work with solvent or in very corrosive atmosphere (pp)可以與溶劑一起運行， 或可以在強腐蝕性環(huán)境運行hmay be used as a clarifier (np type)可以作為澄清器用hgood dryness performance ( rp type)優(yōu)良的干燥效果hworldwide more used vacuum filter solution.h世界范圍內(nèi)使用較多的真空過濾機類型rotary vacuum drum fil

10、ter 轉(zhuǎn)鼓式真空過濾機disadvantages :缺點缺點lwashing efficiency,沖洗效果lcannot be used for high density pulps,不能用在高粘稠度料漿上l difficulty when fluctuant feed solid content,不能用在固體顆粒含量變化大的料漿上l high transport cost ( cannot be shipped dismantled)高運輸成本（無法拆卸后船運）rotary vacuum disc filter 轉(zhuǎn)盤式真空過濾機rotary vacuum disc filter 轉(zhuǎn)盤式真

11、空過濾機 features特點特點i very large filtration area,非常巨大的過濾空間i simple conception 簡單的結(jié)構(gòu)i low exploitation cost 低開發(fā)成本 disadvantage :缺點缺點i no cake washing possibility 不能沖洗濾餅i only use for product easy to filtratei只能用于過濾容易過濾的產(chǎn)品table filter翻盤式過濾機 table filter features特點特點i very large filtration area ( 250m ) ,

12、i非常大的過濾面積i few moving parts (compared to tilting pan filter) i更少的移動部件（相對于斜盤式過濾機）i engineered for difficult atmosphere ( h3po4)i專為揮發(fā)產(chǎn)品設(shè)計i low operating costs,低運行成本i higher productivity,高生產(chǎn)率i high availability高利用率i very long life time非常長的使用壽命table filter 翻盤式過濾機 disadvantages缺點缺點i high capital cost ,高成

13、本ionly designed for phosphoric acid application i專為磷酸產(chǎn)品設(shè)計2 main types of washing process 兩種主要的沖洗工藝co current washing 正流沖洗l often used經(jīng)常使用l easy to operate易于操作slurry inletfiltratewashingoutletwashinginlet沖洗水入口 漿料入口 濾出液沖洗液出口2 main types of washing process methodic or counter current washing逆流沖洗 slurry

14、 inletcloudy portfiltratewashingoutletwashinginletused when problem of washing supply當(dāng)沖洗水供應(yīng)量有限時沖洗水入口 漿料入口 濾出液沖洗液出口漿料入口 濁液罐 caracteristics特點 process competition 工藝比較l filter press擠壓機l pressure filter (larox type)壓濾機（如larox）l belt filter without rubber beltl無橡膠皮帶的帶式過濾機l settling (counter current decan

15、tation),l沉淀式（逆流沉降槽）lcentrifuges離心機l cyclone separation漩渦分離l screening篩分l u-filtrationu型過濾process competition 工藝比較pressure filter壓濾機it is not working under vacuum.非真空條件下運行it s a vertical press filter.垂直式壓濾機pressure filter 壓濾機lsqueezing by air or waterl通過空氣或者水?dāng)D壓lfiltration on horizontal plates在水平層面上過濾

16、ldischarging排放 : releving the plateslmoving the cloth松開夾層移走濾布lwashing or drying沖洗或干燥pressure filter 壓濾機features特點特點l very good dryness非常優(yōu)秀的干燥效果l minimal foot print占地面積小l no vacuum system required無須真空系統(tǒng)disadvantages缺點缺點l discontinuous filter非連續(xù)過濾的過濾機l less washing efficiency ( problem of dist.)沖洗效率低l

17、 high operating cost高運行成本l low availability低利用率pressure filter 壓濾機for your information.信息filtres philippebrochures : 1975 philippe過濾機樣本：過濾機樣本：1975belt filter without belt 無皮帶的帶式過濾機no rubber belt, the filtration cloth is directly in contact with trays無橡膠皮帶，濾布直接接觸托盤trays托盤cake濾餅belt filter without bel

18、t 無皮帶的帶式過濾機cycle description 循環(huán)描述循環(huán)描述vacuum is on 真空打開的時候真空打開的時候 filtration cloth is sealed on traysfiltration is performingtrays are moving forwardend of course for trays濾布密封在托盤上，托盤向前移動到尾部vacuum is off 真空關(guān)閉真空關(guān)閉trays is going back 托盤返回trays in initial position 托盤回到初始位置vacuum is on 真空再次打開真空再次打開belt f

19、ilter without belt 無皮帶的帶式過濾機features特點特點no rubber belt無須皮帶 consequences結(jié)果結(jié)果normally cheaper更便宜can be installed for chemical application in which rubber is not allowed 可以在和橡膠不能共存的化學(xué)產(chǎn)品上使用 belt filter without belt 無皮帶的帶式過濾機disadvantages :缺點缺點cannot have large filtration area equipment不能做到較大的過濾面積cracks

20、in the cake due to stop of vacuum : washing efficiency decrease由于真空的停頓造成濾餅裂縫：沖洗效率降低duration life of the cloth reduced : all the loads is supported by the cloth濾布壽命降低：所有的負(fù)載都由濾布支撐filtrate cannot be clear because compromise between solidity&openingnon scalable equipment 由于固體和開口之間沒有緩沖設(shè)備造成濾液渾濁warning

21、 警告some customers are speaking about belt filters, but in their mind :一些客戶談?wù)搸竭^濾機，但是在他們的概念里belt = filtration clothbelt = filtration cloth皮帶=濾布specially, when they want to compare our hvbf with :特別是當(dāng)他們想將我們的hvbf和以下設(shè)備比較的時候：lpressure filter ( larox type)壓濾機lbelt filter without rubber belt無皮帶的帶式過濾機counte

22、r current decantation逆流傾出thick. n n-1thick. n 1thick. n 2thick. n nwaterslurryoverflorw n n-2underrflorw n 3washedpulpfeatures特點特點lno filtration equipment無須過濾設(shè)備lvery low operating cost ( low energy cost)非常低的運行成本（低能耗）llow maintenance 低維護成本counter current decantation逆流傾出thick. n n-1thick. n 1thick. n

23、2thick. n nwaterslurryoverflorw n n-2underrflorw n 3washedpulpdisadvantages缺點缺點lmaximal foot print 大占地面積lhigh water consumption高水量消耗lvery long response time長時間的等待lsolids are still in liquid phaselhigh capital costl固體仍然存在于液體中l(wèi)高投資process competitioncaracteristics 工藝特點比較conclusion結(jié)論 even with good expe

24、rience, we need to know environment of the problem :即使有豐富的經(jīng)驗我們也需要知道一下環(huán)境因素即使有豐富的經(jīng)驗我們也需要知道一下環(huán)境因素lsolids concentration固液比l flow rate流量l granulometry粒徑分布l temperature溫度l viscosity,粘稠度l chemical apsect ( corrosive ? toxic ?, which material ?)化學(xué)性質(zhì)l objectives of the plant ( productivity ?, dryness ? performance ?)l工廠的意圖（產(chǎn)量？干燥效果？性能表現(xiàn)？） l filter aid ? floculant ?過濾輔助l allowable space for equipment ?設(shè)備的放置空間l is there a probl