PPCA/S氣箱脈沖袋收塵器

 一、概述
        氣箱式脈沖袋收塵器是從美國(guó)富樂(lè)公司引進(jìn)的具有先進(jìn)水平的高效袋收塵器。它綜合分室反吹和噴吹脈沖清灰各類(lèi)袋收塵器的優(yōu)點(diǎn)，克服了分室反吹清灰強(qiáng)度不夠，噴吹脈沖清灰和過(guò)濾同時(shí)進(jìn)行的缺點(diǎn)，因而擴(kuò)大了袋收塵器的應(yīng)用范圍，由于這種類(lèi)型的收塵器的結(jié)構(gòu)有其特點(diǎn)，所以提高了收塵效率，延長(zhǎng)了濾袋的使用壽命。
        PPCA/S氣箱脈沖袋收塵器可廣泛用于水泥廠(chǎng)的破碎、包裝、庫(kù)頂、熟料冷卻機(jī)和各種磨機(jī)等收塵如用于煤磨收塵，要增設(shè)防燃防暴措施。收塵器結(jié)構(gòu)也要相應(yīng)的改變，還適合于含塵濃度特高氣體的收塵，如帶O-SEPA選粉機(jī)的粉磨系統(tǒng)，氣體含塵濃度高達(dá)1000g/m3  （標(biāo)）以上，采用本系列收塵器收塵，可不設(shè)置旋風(fēng)收塵器作一級(jí)收塵。除用于水泥工業(yè)外，也實(shí)用于冶金、化工、機(jī)械和民用鍋爐等廢氣的收塵。本系列收塵器濾袋的材質(zhì)，一般采用滌綸針刺氈，允許連續(xù)使用溫度小于120度。如濾袋采用芳綸針刺氈，其允許使用溫度可達(dá)210度。如處理的廢氣溫度高于上述濾料的允許溫度，廢氣進(jìn)入收塵器之前應(yīng)采取降溫措施。
        PPCA/S氣箱脈沖袋收塵器為戶(hù)外式由不同室數(shù)和每室的不同袋數(shù)，組成多種不同規(guī)格。每室的袋數(shù)有32、64、96、128袋四種，全系列共有33種規(guī)格，濾袋直徑均為130mm，濾袋長(zhǎng)度有2450mm和3060m兩種。本系列收塵器能負(fù)壓或正壓操作，其本體結(jié)構(gòu)無(wú)任何改變，其收塵效率可達(dá)99.9%以上，凈化后氣體的汗塵濃度小于100mg/Nm3（標(biāo)），本系列收塵器的主要技術(shù)性能分別見(jiàn)附表。本系列收塵器如用于寒冷地區(qū)，當(dāng)室外采暖計(jì)算溫度<-25度時(shí)，需要增充加熱裝置，收塵器的殼體也要增設(shè)保溫層。

Ⅰ.Brief introduction
        Air case pulse (Plenum Pulse bag filter is introduced the technology from USA Fuller Company) is an advanced level and high efficiency dust filter. It has the advantages of divided chamber and spraying pulse, overcome divided chamber and spraying strength is not enough, spraying pulse dust and filtering at the same time. So it enlarges application range of bag filter. It can improve the efficiency of dust and prolong the life of filtering bag.
This series product is widely used in crushing, packing, clinker cooler and all kinds of mill to collecting dust in cement factory. If it is used in collecting dust of coal mill, it should add fireproof and flameproof measurement. It cam be used in high dust density air，such as with O-SEPA powder separator grinding system. Air dust density can arrive at over 1000g/m3(standard). When using this kind of dust filter, it may not arrange cyclone dust filter as 1st dust filtering. Except cement industry, it can use in metallurgical, chemical industry, machinery and civil boiler etc. waste gas. The material of this series dust filter is normally used terylene needle felt. Allowable applied temperature is less than 120#C. If the temperature of material is improved, you can select to use other filtering material or make down temperature before waste gas enter into dust filter.
This series dust filter is used outdoor. Different chambers and bags come into different specifications. The bag quantity is 32, 64, 96 and 128 bags. The whole series have 33pcs of specifications. The diameter of filtering bag is all 0130mm. The length of filtering bag has 2450mm and 3060mm. This series dust filter can work at positive pressure or minus pressure. Body structure has no any changes. Dust efficiency can meet over 99.9%. Moisture of purified air is less than 100mg/m3(standard). Main technical parameter of this series dust filter refer to attaching table. If this series dust filter is used in high chilled zone where calculated temperature of heating outdoor is less than minus 25°C，it should add heating device and the shell of dust filter need to add insulating layer.

 
二、構(gòu)造和工作原理
        PPCA/S氣箱脈沖袋收塵器由殼體、灰斗、排灰裝置、支架和脈沖清灰系統(tǒng)等部分所組成。當(dāng)含塵氣體從進(jìn)風(fēng)口進(jìn)入收塵器后，先碰到進(jìn)出風(fēng)口之間的斜隔板，氣流便轉(zhuǎn)向流入灰斗，同時(shí)氣流速度變慢。由于慣性作用，使氣體中粗顆粒粉塵直接落入灰斗，起到預(yù)收塵的作用。進(jìn)入灰斗的氣流隨后折而向上通過(guò)內(nèi)部裝有金屬骨架的濾袋，粉塵被捕集在濾袋的外表面，凈化后的氣體進(jìn)入濾袋室上部的清潔室，匯集到風(fēng)管排出。殼體用隔板分成若干個(gè)Du立的收塵室，按照給定的時(shí)間間隔對(duì)每個(gè)收塵室的過(guò)濾收塵室輪流進(jìn)行清灰。每個(gè)收塵室裝有一個(gè)提升閥，清灰時(shí)提升閥關(guān)閉，切斷通過(guò)該收塵室的過(guò)濾氣流，隨即脈沖閥開(kāi)啟，向?yàn)V袋內(nèi)噴入高壓空氣，以清除濾袋外表面上的粉塵，各收塵室的脈沖噴吹寬度和清灰周期，由專(zhuān)用的清灰程序控制器自動(dòng)連續(xù)進(jìn)行。

Structure and work principle
        This series dust filter is made up of shell, dust hopper, discharge dust device, frame and pulse removing dust system etc. When dust air enter dust filter, first touch middle inclined baffle. Air flow turn to dust hopper and the speed of airflow become slowly.As the inertia, crude material in the air will fall into dust hopper directly and obtain pre-filtering dust. Airflow from dust hopper will pass through metal frame upward, dust is collected on the surface of filtering bag. After purified air enter into up cleaning room, discharge from air outlet pipe. Inlet of type PPCS is arranged on the dust hopper. Airflow enter dust hopper and first touch the baffle of up air inlet. The function is the same as the above. The shell is separated into absolute dust filtering room by baffle. According to the given time interval, clean the dust of every chamber. Every dust chamber is installed one lifting valve. Close lifting valve when removing dust and cut off airflow from dust filter, pulse valve will open and spray high pressure atmosphere to smooth away the dust of filtering bag. The spraying width of dust filter and dust frequency is controlled by special dust program controller automatically and continuously.

三、氣箱式脈沖收塵器特點(diǎn)
        氣箱脈沖清灰袋收塵器的特點(diǎn)是采用分室輪流進(jìn)行清灰，即所謂離線(xiàn)清灰。當(dāng)某一室進(jìn)入噴吹清灰時(shí)，過(guò)濾氣流被切斷，避免了噴吹清灰產(chǎn)生粉塵二次飛揚(yáng)。所以氣箱式脈沖袋收塵器能捕集含塵濃度高達(dá)1000g/nm3（標(biāo)）的氣體。

 The characters of air case pulse bag filter
       Air case pulse dust bag filter is used to clean dust in dividing chamber in turn, that is to say, offline clean dust. When one room is spraying dust, filtering air will be cut off and avoid of second scattering of dust. So air case pulse bag filter can collect density of 1000g/m3(standard) air.

四、清灰電氣控制裝置

1.清灰控制方式

清灰控制方式一般采用定時(shí)法，也可采用定阻法。所謂定阻法就是控制濾袋內(nèi)外側(cè)的壓差，當(dāng)收塵器的差壓值達(dá)到設(shè)定植時(shí)（一般為1470Pa），即由差壓變送器發(fā)出信號(hào)，通過(guò)電氣控制裝置，即按既定程序進(jìn)行逐室清灰。

2.電氣控制裝置的功能

對(duì)多室收塵器集中控制時(shí)采用單片機(jī)進(jìn)行集中控制，控制有自動(dòng)和手動(dòng)兩種方式，當(dāng)單片機(jī)出故障或檢修時(shí)，可隨時(shí)切換為手動(dòng)控制，為便于調(diào)試和設(shè)備檢修并設(shè)有機(jī)旁控制。

3.清灰電氣控制裝置到收塵器進(jìn)線(xiàn)端子的布線(xiàn)設(shè)計(jì)由選用者負(fù)責(zé)，接線(xiàn)端子參見(jiàn)清灰電氣控制器說(shuō)明書(shū)。

VI. Electric control device of removing dust
1.Dust control way
Dust control way is normally used timing way and given resistance way. The given resistance way can control pressure differential inside and outside filtering bag. When dust filter is to preset valve(normally 1470Pa), pressure differential transformer will send a signal through electric control device. Clean the dust according to regulated program.
2.Electric control device
Many chambers dust filter is used single PLC program controller with centralized control. Control way has automatic control and manual control. When single PLC is something wrong or repairing, change it into manual control at any time. In consideration of commissioning and equipment repayment, it has no local control.
3.The wire arrangement of inlet terminal from dust electric control device to dust filter is selected by the customer. Terminal connection figure refer to operation instructions of electric controller.

五、收塵器系統(tǒng)組成及供貨

1、收塵器本體包括殼體、灰斗、濾袋裝置進(jìn)風(fēng)管、排灰裝置和脈沖噴吹系統(tǒng)（包括脈沖閥、管道、閥門(mén)、氣源三連體和儲(chǔ)氣罐等）。

2、收塵器配備有清灰電氣控制裝置，一般按定時(shí)清灰控制。如用戶(hù)要求按定時(shí)控制，定貨時(shí)應(yīng)注明，其定阻控制的差壓計(jì)、差壓指示報(bào)警儀以及其他儀表等的費(fèi)用要另行計(jì)算。

3、收塵器卸灰裝置根據(jù)用戶(hù)需要配置。

4、用戶(hù)要更換濾布來(lái)適應(yīng)其它的特殊要求。如用于高寒地區(qū)要增加采暖系統(tǒng)，可直接在訂貨時(shí)說(shuō)明。

5、收塵器根據(jù)不同規(guī)格，可以是整機(jī)發(fā)運(yùn)，或以解體形式發(fā)運(yùn)，其基礎(chǔ)設(shè)計(jì)由選用者負(fù)責(zé)。

6、PPCA/S氣箱脈沖袋收塵器由制造商提供設(shè)備使用和安裝說(shuō)明書(shū)

V .Composition and supply scope of dust filter
The body of dust filter is including shell, dust hopper, filtering and device, inlet and outlet pipe, pulse spray¬ing system(include pulse valve, pipe, valve, three connections of air source and air tank etc.)
Dust filter is assorted with removing dust electric control device, normally it use timing dust control. If the customer ask to use given resistance, note it when placing an order. Pressure differential, alarming meter and other instrument will be calculated in another.
Discharge device of dust filter is fitted according to the customer’s requirement.
The customer request to change filtering cloth to meet other special request. For example, high chilled zone should add heating system. It may note in the order.
Dust filter can be shipped in the whole or in partial according to different specifications. The foundation is designed by the customer.
The manufacturer should supply operation and installation instructions.

PPC32/PPC64型氣箱式脈沖袋收塵器技術(shù)性能表

PPC96型氣箱式脈沖袋收塵器技術(shù)性能表

 PPC128型氣箱式脈沖袋收塵器技術(shù)性能表