萊蕪活性炭廠家 萊蕪活性炭供應(yīng) 萊蕪活性炭用途 萊蕪活性炭種類

活性炭外觀為黑色粉末狀，在一般溶液下均不溶解。無臭無味，具有表面積大吸附力強(qiáng)、純度高、濾速快、質(zhì)量穩(wěn)定，具有絮凝效應(yīng)和助濾效應(yīng)等特點(diǎn)。廣泛適用于食品、醫(yī)藥、味精化工等產(chǎn)品的脫色、除雜精制。也可以用于水的凈化處理。椰殼活性炭采用椰子殼為原料精制而成，外形為不定形顆粒，具有機(jī)械強(qiáng)度高，孔隙結(jié)構(gòu)發(fā)達(dá)，比表面積大，吸附速度快，吸附容量高，易于再生，經(jīng)久耐用等特點(diǎn)。主要用于食品、飲料、酒類、空氣凈化活性炭和高純飲用水的除臭、去除水中重金屬、除氯及液體脫色。并可廣泛用于化學(xué)工業(yè)的溶劑回收和氣體分離等。凈化空氣用活性炭　凈化空氣用的活性炭的微孔直徑，必須是略大于有毒有害氣體分子直徑，才具備對(duì)有毒有害氣體的吸附能力。影響空氣凈化活性炭使用壽命的關(guān)鍵因素：使用環(huán)境中有害物質(zhì)的總量大小以及脫附的頻率。由于活性炭吸附有害氣體的質(zhì)量可以接近甚至達(dá)到其本身的質(zhì)量，而在普通家庭空間空氣中，有害氣體的質(zhì)量遠(yuǎn)遠(yuǎn)小于活性炭的使用量。因此，只要經(jīng)常將活性炭放置在太陽下爆曬，活性炭就可以相對(duì)來說長(zhǎng)期使用。

按炭化物質(zhì)分類，活性炭可分為：椰殼類活性炭、果殼類活性炭（包括果核殼活性炭、杏殼活性炭、核桃殼活性炭）、木質(zhì)類活性炭、煤質(zhì)類活性炭。按照外觀分類，活性炭可分為：粉狀活性炭、顆?；钚蕴俊⒉欢ㄐ皖w?；钚蕴?、圓柱形活性炭、球形活性炭、其他型的活性炭。按孔徑分：大孔活性炭半徑>20000nm、過渡孔活性炭半徑150-20000nm、微孔活性炭半徑<150nm?；钚蕴课侥芰軓?qiáng)，是把硬木、果殼、骨頭等放在密閉的容器中燒成炭再增加其孔隙后制成的。防毒mj中用來過濾氣體，工業(yè)上用來脫色、使溶液純凈，醫(yī)藥上用來吸收胃腸中的毒素、細(xì)菌或氣體。

通常都認(rèn)為應(yīng)用活性炭沒有安全問題，但實(shí)際沒有絕對(duì)的安全，對(duì)活性炭應(yīng)用中的安全不能掉以輕心，對(duì)活性炭的性質(zhì)和不安全的可能性要有所認(rèn)識(shí)。A. 關(guān)于著火1) 活性炭不列入危險(xiǎn)品類，但是可燃的。著火后不會(huì)發(fā)生有焰燃燒，只是陰燃。2)活性炭不會(huì)自燃，在空氣中可能會(huì)著火，與汽油、柴油等混合，可引起燃燒。3)活性炭燃燒時(shí)如果通風(fēng)不足，會(huì)生成有毒的一氧化碳。 B、關(guān)于貯存1) 活性炭必須存放在盡可能防火的建筑內(nèi)。2)活性炭不可與氧化劑混放3)貯放處禁止明火，火花和吸煙。

Where dost thou stand behind them all, my lover, hiding thyself in the shadows? They push thee and pass thee by on the dusty road, taking thee for naught. I wait here weary hours spreading my offerings for thee, while passers-by come and take my flowers, one by one, and my basket is nearly empty.
The morning time is past, and the noon. In the shade of evening my eyes are drowsy with sleep. Men going home glance at me and smile and fill me with shame. I sit like a beggar maid, drawing my skirt over my face, and when they ask me, what it is I want, I drop my eyes and answer them not.
Oh, how, indeed, could I tell them that for thee I wait, and that thou hast promised to come. How could I utter for shame that I keep for my dowry this poverty. Ah, I hug this pride in the secret of my heart.
I sit on the grass and gaze upon the sky and dream of the sudden splendour of thy coming---all the lights ablaze, golden pennons flying over thy car, and they at the roadside standing agape, when they see thee come down from thy seat to raise me from the dust, and set at thy side this ragged beggar girl a-tremble with shame and pride, like a creeper in a summer breeze.
But time glides on and still no sound of the wheels of thy chariot. Many a procession passes by with noise and shouts and glamour of glory. Is it only thou who wouldst stand in the shadow silent and behind them all? And only I who would wait and weep and wear out my heart in vain longing??