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你所在位置：首頁 - - 新(xīn)聞中心(xīn) - 公(gōng)司新(xīn)聞| 瀝(lì)青(qīng)輸送泵(bèng)nyp110-ru-t2-w11高粘度泵(bèng)配xwd11kw-7-13流(liú)量7.3m3/h,壓力(lì)0.8mpa | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 發布時(shí)間：2015-1-4 14:40:04 點擊次數： | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
瀝青是(shì)由不(bú)同分(fèn)子量(liàng)的碳(tàn)氫化(huà)合物(wù)及其非金屬衍生(shēng)物組成(chéng)的黑(hēi)褐(hè)色複雜混合物(wù)，呈液态(tài)，是一種防水防(fáng)潮和(hé)防腐(fǔ)的有(yǒu)機膠(jiāo)凝材料。用(yòng)于塗料(liào)、塑料、橡(xiàng)膠等工業(yè)以及(jí)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(zhōng)文名 瀝青chinese name asphalt cas登錄(lù)号8052-42-4the cas login number 8052-42-4 einecs登錄号232-490-9einecs registration number 232-490-9 熔 點(diǎn) 485melting point 485 沸 點<470 ℃boiling point < 470 ℃< iv> 水溶(róng)性不(bú)溶于水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(yè)體狀(zhuàng)态(tài)outside view half solid or liquid state 閃 點204.4flash point 204.4 危(wēi)險性(xìng)描述健康(kāng)危害：中等毒(dú)性(xìng)describe health hazard risk: medium toxicity 來 源煤和石油(yóu)to the source of coal and oil 成 分瀝青(qīng)質和(hé)樹脂into asphaltene and resin 含 量99.48%containing 99.48% 爆炸(zhà)下(xià)限 30(g/立方(fāng)厘米(mǐ))the lower explosive limit (30 g/cm3) 導電性能絕緣體(常溫下)conductivity insulator (room temperature) 瀝青(qīng)屬于(yú)憎水(shuǐ)性材料，它不透(tòu)水，也幾乎不(bú)溶于水(shuǐ)、丙酮(tóng)、乙醚、稀乙(yǐ)醇，溶(róng)于二硫化(huà)碳、四(sì)氯(lǜ)化(huà)碳、氫氧化(huà)鈉(nà)。瀝青及(jí)其煙氣對(duì)皮膚(fū)粘膜具有刺(cì)激(jī)性，有光毒(dú)作用(yòng)和緻癌作用。我國三種(zhǒng)主要瀝(lì)青的毒性：煤焦(jiāo)瀝青>頁岩(yán)瀝青(qīng)>石油瀝青，前二(èr)者有(yǒu)緻癌性。瀝(lì)青的(de)主要皮膚(fū)損害有(yǒu)：光(guāng)毒性(xìng)皮炎，皮(pí)損(sǔn)限于(yú)面、頸部等暴露(lù)部分；黑變(biàn)病，皮損常對稱分布(bù)于暴(bào)露部位，呈(chéng)片狀，呈褐－深褐(hè)－褐黑(hēi)色；職業性(xìng)痤瘡；疣(yóu)狀(zhuàng)贅生(shēng)物及事故引起的熱燒傷。此外(wài)，尚有頭昏、頭脹(zhàng)，頭痛、胸(xiōng)悶、乏力(lì)、惡心(xīn)、食欲不振(zhèn)等全身症(zhèng)狀和(hé)眼(yǎn) 、鼻、咽(yān)部的刺(cì)激症狀。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(méi)焦(jiāo)瀝青coal tar 煤焦瀝青是(shì)煉焦的(de)副産品，即焦油(yóu)蒸餾後(hòu)殘留在蒸(zhēng)餾釜(fǔ)内的(de)黑色物質。它與精(jīng)制(zhì)焦油(yóu)隻是(shì)物(wù)理性質(zhì)有分(fèn)别(bié)，沒(méi)有明(míng)顯的界限，一般(bān)的劃分方(fāng)法(fǎ)是(shì)規定軟化(huà)點在26．7℃（立方(fāng)塊(kuài)法(fǎ)）以下的為焦油，26．7℃以上的為瀝青(qīng)。煤焦(jiāo)瀝青中主要含(hán)有難(nán)揮發(fā)的蒽(ēn)、菲、芘等。這(zhè)些物(wù)質具有毒(dú)性，由(yóu)于這些成分的(de)含量不(bú)同(tóng)，煤焦瀝青的性質也(yě)因而不同。溫度(dù)的變(biàn)化對(duì)煤焦(jiāo)瀝青的(de)影(yǐng)響很大，冬(dōng)季容易脆(cuì)裂，夏季(jì)容(róng)易軟(ruǎn)化。加熱時(shí)有特(tè)殊氣(qì)味；加(jiā)熱到260℃在5小時以後，其(qí)所含(hán)的蒽(ēn)、菲、芘(pí)等成分就會揮(huī)發出來。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(shí)油(yóu)瀝青是(shì)原油蒸餾(liú)後的(de)殘渣。根(gēn)據提(tí)煉程度的不同，在常溫下成液體(tǐ)、半固(gù)體或(huò)固體(tǐ)。石(shí)油瀝青色黑(hēi)而有光澤，具有較高(gāo)的感溫性(xìng)。由于它在生産(chǎn)過程(chéng)中(zhōng)曾經蒸(zhēng)餾(liú)至400℃以上，因而(ér)所含揮發成分(fèn)甚少，但仍可能(néng)有高(gāo)分子的碳(tàn)氫化合物(wù)未經揮發出來，這些(xiē)物質(zhì)或多(duō)或少(shǎo)對人(rén)體健(jiàn)康是(shì)有害(hài)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(tiān)然瀝(lì)青natural asphalt 天(tiān)然瀝(lì)青儲(chǔ)藏(cáng)在地下，有的(de)形成礦(kuàng)層(céng)或(huò)在(zài)地殼表面堆積。這種(zhǒng)瀝(lì)青(qīng)大都(dōu)經過天然蒸發、氧化，一般已不(bú)含有任何(hé)毒(dú)素(sù)。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(qīng)材料分為地瀝(lì)青和焦油(yóu)瀝青兩大類。地(dì)瀝青又分(fèn)為天(tiān)然瀝青和石油瀝青(qīng)，天然瀝青(qīng)是石(shí)油(yóu)滲出地(dì)表經長期(qī)暴露(lù)和蒸發(fā)後的殘(cán)留物(wù)；石油(yóu)瀝青是将精制(zhì)加工(gōng)石油所殘(cán)餘的(de)渣油(yóu)，經适當的(de)工藝處(chù)理後得(dé)到的産品(pǐn)。焦油(yóu)瀝青是煤、木材(cái)等有機物幹餾加工所得的焦油經再加工後(hòu)的産品。工(gōng)程(chéng)中(zhōng)采用(yòng)的瀝(lì)青絕(jué)大多數是(shì)石油(yóu)瀝青，石油瀝青(qīng)是複雜的碳氫(qīng)化合物與其非(fēi)金屬衍(yǎn)生(shēng)物組成的(de)混(hùn)合物。通(tōng)常瀝(lì)青閃點在(zài)240℃~330℃之間(jiān)，燃點比閃(shǎn)點約高3℃~6℃度，因此(cǐ)施工溫度應控(kòng)制在閃(shǎn)點以下(xià)。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(qīng)輸送泵是容積(jī)式内(nèi)齧合齒輪泵，主(zhǔ)動齒輪（外轉子(zǐ)）帶動被動(dòng)齒輪(lún)（内轉子）旋(xuán)轉時(shí)，不斷(duàn)産(chǎn)生(shēng)封閉(bì)的空間，在吸油(yóu)區齒輪(lún)逐漸脫(tuō)離齧(niè)合而液體(tǐ)不斷(duàn)地充(chōng)滿齒(chǐ)間并(bìng)被帶到出(chū)油區(qū)，齒輪在出(chū)油區進入齧合(hé)時液體被(bèi)排出(chū)。兩個(gè)旋(xuán)轉(zhuǎn)齒輪的共(gòng)同作用，形(xíng)成一個(gè)穩定的(de)體積排量，沒有(yǒu)脈動。由(yóu)于泵是完全(quán)對(duì)稱的，泵(bèng)可以反轉(zhuǎn)，液流(liú)方向(xiàng)也随之(zhī)改(gǎi)變。但應注意，泵的轉(zhuǎn)向可能受(shòu)到密(mì)封或(huò)泵内其它結構的限(xiàn)制，用戶有(yǒu)反(fǎn)轉要求時應在訂(dìng)貨時做出說明(míng)。 該(gāi)泵結構簡單(dān)，适用範(fàn)圍廣，可以輸送(sòng)高粘度(dù)和(hé)低粘(zhān)度的(de)各(gè)種液體(tǐ)，最高輸送粘度(dù)可達(dá)500000cst。溫度(dù)範圍自-40— 不同的(de)使用(yòng)條件(jiàn)，泵的(de)結構(gòu)形式可能(néng)不同(tóng)，具體應用請向(xiàng)廠家或本公司(sī)客戶代表咨詢(xún)。需要指出的是(shì)泵的轉(zhuǎn)速愈高(gāo)，泵的(de)磨(mó)損愈嚴重，液(yè)體中如含(hán)有磨料(liào)物(wù)質，泵的材料(liào)應(yīng)選用(yòng)耐磨材(cái)質，在此(cǐ)種工(gōng)況(kuàng)下，泵的(de)壓力和轉(zhuǎn)速都(dōu)應降(jiàng)低，高溫條件下，則應(yīng)增加(jiā)泵的間(jiān)隙，并采用耐(nài)熱(rè)材料 。
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