| 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 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
瀝青是由(yóu)不同分子量的(de)碳氫化合物及(jí)其非金屬衍生(shēng)物組成的黑褐(he)色複雜混合物(wù)，呈液态，是一種(zhǒng)防水防潮和防(fang)腐的有機膠凝(ning)材料。用于塗料(liao)、塑料、橡膠等工(gong)業以及鋪築路(lù)面等。 Asphalt is composed of different molecular weight hydrocarbons and non-metallic derivatives of dark brown complex mixture, a liquid, is a kind of waterproof and moistureproof and anticorrosive organic cementing materials.Used in coatings, plastic, rubber and other industrial and paved road, etc. 中文名 瀝(li)青Chinese name asphalt EINECS登錄(lu)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(gu)體或液體狀态(tai)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(zhōng)等毒性Describe health hazard risk: medium toxicity 來 源煤(mei)和石油To the source of coal and oil 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(lì)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) 煤焦瀝青Coal tar 煤焦(jiāo)瀝青是煉焦的(de)副産品，即焦油(yóu)蒸餾後殘留在(zai)蒸餾釜内的黑(hēi)色物質。它與精(jīng)制焦油隻是物(wu)理性質有分别(bié)，沒有明顯的界(jie)限，一般的劃分(fen)方法是規定軟(ruǎn)化點在26．7℃（立方塊(kuai)法）以下的為焦(jiāo)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(deng)。這些物質具有(yǒu)毒性，由于這些(xiē)成分的含量不(bu)同，煤焦瀝青的(de)性質也因而不(bu)同。溫度的變化(huà)對煤焦瀝青的(de)影響很大，冬季(ji)容易脆裂，夏季(jì)容易軟化。加熱(rè)時有特殊氣味(wèi)；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. 石油瀝青asphalt 石油(yóu)瀝青是原油蒸(zhēng)餾後的殘渣。根(gen)據提煉程度的(de)不同，在常溫下(xia)成液體、半固體(tǐ)或固體。石油瀝(li)青色黑而有光(guang)澤，具有較高的(de)感溫性。由于它(ta)在生産過程中(zhōng)曾經蒸餾至400℃以(yǐ)上，因而所含揮(huī)發成分甚少，但(dan)仍可能有高分(fen)子的碳氫化合(hé)物未經揮發出(chu)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(biao)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. 瀝青材(cái)料分為地瀝青(qīng)和焦油瀝青兩(liang)大類。地瀝青又(you)分為天然瀝青(qing)和石油瀝青，天(tian)然瀝青是石油(yóu)滲出地表經長(zhang)期暴露和蒸發(fa)後的殘留物；石(shí)油瀝青是将精(jing)制加工石油所(suo)殘餘的渣油，經(jīng)适當的工藝處(chu)理後得到的産(chan)品。焦油瀝青是(shì)煤、木材等有機(ji)物幹餾加工所(suo)得的焦油經再(zài)加工後的産品(pǐn)。工程中采用的(de)瀝青絕大多數(shu)是石油瀝青，石(shí)油瀝青是複雜(za)的碳氫化合物(wù)與其非金屬衍(yan)生物組成的混(hùn)合物。通常瀝青(qing)閃點在240℃~330℃之間，燃(ran)點比閃點約高(gao)3℃~6℃度，因此施工溫(wēn)度應控制在閃(shan)點以下。Asphalt material divided into two categories, pitch and bitumen.Asphalt is divided into natural asphalt and petroleum asphalt, natural bitumen is oil seepage surface after long exposure and evaporation residue;Petroleum asphalt is a residual of residual oil will be refined processing, after appropriate processing products.Bitumen is coal, wood and other organic matter carbonization processing tar after reprocessing of products.Engineering used in the asphalt is the vast majority of asphalt, asphalt is a complex mixture of hydrocarbons with nonmetal derivatives.Usually asphalt flash point between 240 ℃ ~ 330 ℃, flash point is higher than flash point about 3 ℃ ~ 6 ℃ degrees, so the construction temperature should be controlled below the flash point.v 瀝青輸(shu)送泵是容(rong)積式内齧合齒(chi)輪泵，主動齒輪(lún)（外轉子）帶動被(bèi)動齒輪（内轉子(zǐ)）旋轉時，不斷産(chǎn)生封閉的空間(jiān)，在吸油區齒輪(lun)逐漸脫離齧合(hé)而液體不斷地(dì)充滿齒間并被(bèi)帶到出油區，齒(chi)輪在出油區進(jin)入齧合時液體(ti)被排出。兩個旋(xuán)轉齒輪的共同(tóng)作用，形成一個(gè)穩定的體積排(pai)量，沒有脈動。由(yóu)于泵是完全對(dui)稱的，泵可以反(fǎn)轉，液流方向也(ye)随之改變。但應(ying)注意，泵的轉向(xiàng)可能受到密封(fēng)或泵内其它結(jié)構的限制，用戶(hu)有反轉要求時(shí)應在訂貨時做(zuò)出說明。 不同(tong)的使用條件，泵(beng)的結構形式可(kě)能不同，具體應(yīng)用請向廠家或(huò)本公司客戶代(dai)表咨詢。需要指(zhi)出的是泵的轉(zhuǎn)速愈高，泵的磨(mó)損愈嚴重，液體(ti)中如含有磨料(liao)物質，泵的材料(liao)應選用耐磨材(cai)質，在此種工況(kuàng)下，泵的壓力和(hé)轉速都應降低(di)，高溫條件下，則(ze)應增加泵的間(jiān)隙，并采用耐熱(rè)材料 。
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