馬鞍山淮北銅陵安慶黃山平版印刷廢氣處理專業(yè)生產(chǎn)(供應(yīng))銷售平版印刷廢氣處理設(shè)備系列產(chǎn)品,公司具有良好的市場(chǎng)信譽(yù),專業(yè)的銷售和技術(shù)服務(wù)團(tuán)隊(duì),憑著多年經(jīng)營(yíng)經(jīng)驗(yàn),熟悉并了解市場(chǎng)行情,贏得了國(guó)內(nèi)認(rèn)可
靜電除塵是氣體除塵方法的一種。含塵氣體經(jīng)過高壓靜電場(chǎng)時(shí)被電分離,塵粒與負(fù)離子結(jié)合帶上負(fù)電后,趨向陽極表面放電而沉積。在冶金、化學(xué)等工業(yè)中用以凈化氣體或回收有用塵粒。利用靜電場(chǎng)使氣體電離從而使塵粒帶電吸附到電極上的收塵方法。在強(qiáng)電場(chǎng)中空氣分子被電離為正離子和電子,電子奔向正極過程中遇到塵粒,使塵粒帶負(fù)電吸附到正極被收集。當(dāng)然通過技術(shù)創(chuàng)新,也有采用負(fù)極板集塵的方式。以往常用于以煤為燃料的工廠、電站,收集煙氣中的煤灰和粉塵。冶金中用于收集錫、鋅、鉛、鋁等的氧化物,也有可以用于家居的除塵滅菌產(chǎn)品。
靜電除塵空氣凈化器利用高壓直流電場(chǎng)使空氣中的氣體分子電離,產(chǎn)生大量電子和離子,在電場(chǎng)力的作用下向兩極移動(dòng),在移動(dòng)過程中碰到氣流中的粉塵顆粒和細(xì)菌使其荷電,荷電顆粒在電場(chǎng)力作用下向自身電荷相反的極板做運(yùn)動(dòng),在電場(chǎng)作用下,空氣中的自由離子要向兩極移動(dòng),電壓愈高、電場(chǎng)強(qiáng)度愈高,離子的運(yùn)動(dòng)速度愈快。由于離子的運(yùn)動(dòng),極間形成了電流。開始時(shí),空氣中的自由離子少,電流較少。電壓升高到一定數(shù)值后,放電極附近的離子獲得了較高的能量和速度,它們撞擊空氣中的中性原子時(shí),中性原子會(huì)分解成正、負(fù)離子,這種現(xiàn)象稱為空氣電離。空氣電離后,由于連鎖反應(yīng),在極間運(yùn)動(dòng)的離子數(shù)大大增加,表現(xiàn)為極間的電流(稱之為電暈電流)急劇增加,空氣成了導(dǎo)體,高強(qiáng)電壓捕獲附帶細(xì)菌顆粒,瞬間導(dǎo)穿由蛋白質(zhì)組成的細(xì)胞壁,達(dá)到殺滅細(xì)菌吸附除塵。
普通凈化機(jī)采用濾紙來過濾空氣中的灰塵,極易堵塞濾孔,灰塵越積越多,不僅沒有滅菌效果,而且容易造成二次污染。而靜電除塵技術(shù)有以下幾個(gè)優(yōu)點(diǎn):
(1)除塵效率高;
(2)可以凈化較大氣量;
(3)能夠除去的粒子粒徑范圍較寬;
(4)可凈化溫度較高含塵煙氣;
(5)結(jié)構(gòu)簡(jiǎn)單,氣流速度低,壓力損失??;
(6)能量消耗比其他類型除塵器低;
(7)電除塵器可以實(shí)現(xiàn)微機(jī)控制,遠(yuǎn)距離操作。
Electrostatic precipitator is one of the gas dedusting methods. When the dust gas is separated by the high voltage electrostatic field, the dust particles and the negative ions are negatively charged and tend to be deposited on the anode surface. In metallurgical, chemical and other industries, it is used to purify gas or to recover useful dust particles. The use of the electrostatic field to ionize the gas so that the dust particles are charged to the electrode. In a strong electric field, the air molecules are ionized into positive ions and electrons. The dust particles are encountered during the process of the electrons to the positive pole, so that the dust particles are collected with negative electricity to the positive pole. Of course, through technological innovation, there is also the use of negative plate dust collection. Coal - fired plants and power stations are used to collect coal ash and dust in the flue gas. In metallurgy, it is used to collect tin, zinc, lead, aluminum and other oxides, and also can be used for household dust removal and sterilization products.