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| 瀝青(qīng)輸送泵NYP110-RU-T2-W11高粘度(dù)泵配XWD11KW-7-13流量7.3m3/h,壓力(li)0.8Mpa | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 發布時間：2015-1-4 14:40:04 點擊(ji)次數： | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
瀝青是由(yóu)不同分子量的(de)碳氫化合物及(ji)其非金屬衍生(sheng)物組成的黑褐(he)色複雜混合物(wu)，呈液态，是一種(zhǒng)防水防潮和防(fáng)腐的有機膠凝(níng)材料。用于塗料(liào)、塑料、橡膠等工(gong)業以及鋪築路(lù)面等。 中文名 瀝(lì)青Chinese name asphalt CAS登錄号8052-42-4The CAS login number 8052-42-4 EINECS登錄(lù)号232-490-9EINECS registration number 232-490-9 熔 點 485Melting point 485 沸 點<470 ℃boiling point < 470 ℃< iv> 水(shui)溶性不溶于水(shui)Water soluble does not dissolve in water 密 度 1.15-1.25Dense degree of 1.15 to 1.25 外 觀半固(gù)體或液體狀态(tài)Outside view half solid or liquid state 閃 點204.4Flash point 204.4 危險性描(miao)述健康危害：中(zhong)等毒性Describe health hazard risk: medium toxicity 成 分瀝(lì)青質和樹脂Into asphaltene and resin 含(hán) 量99.48%Containing 99.48% 爆炸下限 30(g/立(li)方厘米)The lower explosive limit (30 g/cm3) 導電性(xìng)能絕緣體(常溫(wēn)下)Conductivity insulator (room temperature) 瀝青屬于憎(zeng)水性材料，它不(bu)透水，也幾乎不(bú)溶于水、丙酮、乙(yi)醚、稀乙醇，溶于(yú)二硫化碳、四氯(lǜ)化碳、氫氧化鈉(na)。瀝青及其煙氣(qì)對皮膚粘膜具(jù)有刺激性，有光(guāng)毒作用和緻癌(ái)作用。我國三種(zhǒng)主要瀝青的毒(dú)性：煤焦瀝青>頁(ye)岩瀝青>石油瀝(li)青，前二者有緻(zhì)癌性。瀝青的主(zhǔ)要皮膚損害有(yǒu)：光毒性皮炎，皮(pi)損限于面、頸部(bu)等暴露部分；黑(hei)變病，皮損常對(dui)稱分布于暴露(lù)部位，呈片狀，呈(cheng)褐－深褐－褐黑色(sè)；職業性痤瘡；疣(you)狀贅生物及事(shi)故引起的熱燒(shāo)傷。此外，尚有頭(tóu)昏、頭脹，頭痛、胸(xiong)悶、乏力、惡心、食(shi)欲不振等全身(shēn)症狀和眼 、鼻、咽(yān)部的刺激症狀(zhuàng)。Asphalt is hydrophobic material, it impermeable, almost insoluble in water, dilute ethanol, acetone, ether, soluble in carbon disulfide, carbon tetrachloride, sodium hydroxide.Asphalt and flue gas of skin mucous membrane irritation, has the light effect and the effect that cause cancer.China's three major asphalt toxicity: coal tar > > oil shale asphalt asphalt, before both have carcinogenicity.The main skin lesions are: asphalt light contact dermatitis, skin confined to the face, neck and other exposed parts;Melanosis, skin lesions often symmetrical distributed in the exposed parts, plate shaped, brown - deep brown - brown-black;Occupational acne;Verrucous vegetations and the accident cause thermal burns.In addition, there are dizziness, head bilges, headache, chest tightness, fatigue, nausea, loss of appetite and other systemic symptom and eye, nose, pharynx and irritation. 煤焦瀝青Coal tar 煤焦(jiāo)瀝青是煉焦的(de)副産品，即焦油(you)蒸餾後殘留在(zai)蒸餾釜内的黑(hei)色物質。它與精(jing)制焦油隻是物(wù)理性質有分别(bie)，沒有明顯的界(jiè)限，一般的劃分(fèn)方法是規定軟(ruǎn)化點在26．7℃（立方塊(kuai)法）以下的為焦(jiao)油，26．7℃以上的為瀝(lì)青。煤焦瀝青中(zhong)主要含有難揮(huī)發的蒽、菲、芘等(děng)。這些物質具有(you)毒性，由于這些(xie)成分的含量不(bú)同，煤焦瀝青的(de)性質也因而不(bu)同。溫度的變化(hua)對煤焦瀝青的(de)影響很大，冬季(ji)容易脆裂，夏季(ji)容易軟化。加熱(rè)時有特殊氣味(wei)；加熱到260℃在5小時(shi)以後，其所含的(de)蒽、菲、芘等成分(fèn)就會揮發出來(lai)。Coal tar is a by-product of coking, namely tar distillation residue in distillation kettle black material.It has respectively with refined tar is only physical properties, there is no clear boundaries, is the way of dividing rules softening point in commonly 26.7 ℃ (cube method) for tar, under 26.7 ℃ above for asphalt.Coal tar mainly contains difficult volatilization of anthracene, phenanthrene, pyrene, etc.These substances have toxic, because the content of these compounds is different, the properties of coal tar are so different.The change of temperature has much effect on the coal tar, winter easy embrittlement, summer is easy to soften.Heating from time to tome special smell;Heated to 260 ℃ after 5 hours, its composition such as anthracene, phenanthrene, pyrene will evaporate. 石油(yóu)瀝青是原油蒸(zhēng)餾後的殘渣。根(gēn)據提煉程度的(de)不同，在常溫下(xià)成液體、半固體(tǐ)或固體。石油瀝(lì)青色黑而有光(guāng)澤，具有較高的(de)感溫性。由于它(tā)在生産過程中(zhong)曾經蒸餾至400℃以(yǐ)上，因而所含揮(hui)發成分甚少，但(dan)仍可能有高分(fèn)子的碳氫化合(hé)物未經揮發出(chū)來，這些物質或(huo)多或少對人體(ti)健康是有害的(de)。Petroleum asphalt is after crude distillation residue.Depending on the degree of refining, into a liquid, semi-solid or solid at room temperature.Petroleum pitch dark and luster, has higher heat resistance.Because it had distillation in the production process to more than 400 ℃, thus contained little volatile component, but may still have high polymer without volatile hydrocarbons, which more or less is harmful to human health. 天然瀝青Natural asphalt 天然(ran)瀝青儲藏在地(dì)下，有的形成礦(kuàng)層或在地殼表(biǎo)面堆積。這種瀝(li)青大都經過天(tian)然蒸發、氧化，一(yi)般已不含有任(rèn)何毒素。Natural asphalt storage in underground, some forming seam or piled up in the earth's crust surface.The asphalt mostly through the natural evaporation and oxidation, generally do not contain any poison. 該泵結構簡單(dān)，适用範圍廣，可(ke)以輸送高粘度(dù)和低粘度的各(ge)種液體，最高輸(shū)送粘度可達500000cst。溫度範圍自(zi)-40— 不同(tong)的使用條件，泵(bèng)的結構形式可(ke)能不同，具體應(ying)用請向廠家或(huò)本公司客戶代(dài)表咨詢。需要指(zhi)出的是泵的轉(zhuan)速愈高，泵的磨(mó)損愈嚴重，液體(tǐ)中如含有磨料(liào)物質，泵的材料(liào)應選用耐磨材(cái)質，在此種工況(kuàng)下，泵的壓力和(he)轉速都應降低(di)，高溫條件下，則(ze)應增加泵的間(jian)隙，并采用耐熱(rè)材料
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