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| 瀝青輸送泵NYP110-RU-T2-W11高(gao)粘度泵配XWD11KW-7-13流量7.3m3/h,壓(ya)力0.8Mpa | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
瀝青是由不(bu)同分子量的碳氫(qing)化合物及其非金(jīn)屬衍生物組成的(de)黑褐色複雜混合(hé)物，呈液态，是一種(zhǒng)防水防潮和防腐(fu)的有機膠凝材料(liao)。用于塗料、塑料、橡(xiàng)膠等工業以及鋪(pù)築路面等。 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(míng) 瀝青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> 水溶(rong)性不溶于水Water soluble does not dissolve in water 密 度(dù) 1.15-1.25Dense degree of 1.15 to 1.25 外 觀半固體或液(ye)體狀态Outside view half solid or liquid state 閃 點204.4Flash point 204.4 危險(xiǎn)性描述健康危害(hai)：中等毒性Describe health hazard risk: medium toxicity 來 源煤(méi)和石油To the source of coal and oil 成 分瀝青(qīng)質和樹脂Into asphaltene and resin 含 量99.48%Containing 99.48% 爆(bào)炸下限 30(g/立方厘米(mi))The lower explosive limit (30 g/cm3) 導電性能絕緣體(tǐ)(常溫下)Conductivity insulator (room temperature) 瀝青屬于(yu)憎水性材料，它不(bu)透水，也幾乎不溶(róng)于水、丙酮、乙醚、稀(xī)乙醇，溶于二硫化(hua)碳、四氯化碳、氫氧(yang)化鈉。瀝青及其煙(yān)氣對皮膚粘膜具(ju)有刺激性，有光毒(du)作用和緻癌作用(yòng)。我國三種主要瀝(li)青的毒性：煤焦瀝(li)青>頁岩瀝青>石油(you)瀝青，前二者有緻(zhi)癌性。瀝青的主要(yào)皮膚損害有：光毒(du)性皮炎，皮損限于(yu)面、頸部等暴露部(bu)分；黑變病，皮損常(chang)對稱分布于暴露(lu)部位，呈片狀，呈褐(he)－深褐－褐黑色；職業(ye)性痤瘡；疣狀贅生(shēng)物及事故引起的(de)熱燒傷。此外，尚有(you)頭昏、頭脹，頭痛、胸(xiōng)悶、乏力、惡心、食欲(yù)不振等全身症狀(zhuàng)和眼 、鼻、咽部的刺(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. 煤焦瀝青(qīng)Coal tar 煤焦瀝青是煉焦(jiao)的副産品，即焦油(you)蒸餾後殘留在蒸(zheng)餾釜内的黑色物(wù)質。它與精制焦油(you)隻是物理性質有(yǒu)分别，沒有明顯的(de)界限，一般的劃分(fen)方法是規定軟化(huà)點在26．7℃（立方塊法）以(yǐ)下的為焦油，26．7℃以上(shàng)的為瀝青。煤焦瀝(li)青中主要含有難(nán)揮發的蒽、菲、芘等(děng)。這些物質具有毒(dú)性，由于這些成分(fen)的含量不同，煤焦(jiāo)瀝青的性質也因(yin)而不同。溫度的變(bian)化對煤焦瀝青的(de)影響很大，冬季容(róng)易脆裂，夏季容易(yì)軟化。加熱時有特(tè)殊氣味；加熱到260℃在(zài)5小時以後，其所含(hán)的蒽、菲、芘等成分(fèn)就會揮發出來。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(qing)是原油蒸餾後的(de)殘渣。根據提煉程(chéng)度的不同，在常溫(wen)下成液體、半固體(tǐ)或固體。石油瀝青(qing)色黑而有光澤，具(jù)有較高的感溫性(xìng)。由于它在生産過(guo)程中曾經蒸餾至(zhi)400℃以上，因而所含揮(hui)發成分甚少，但仍(reng)可能有高分子的(de)碳氫化合物未經(jīng)揮發出來，這些物(wu)質或多或少對人(ren)體健康是有害的(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 天然瀝(lì)青儲藏在地下，有(you)的形成礦層或在(zài)地殼表面堆積。這(zhe)種瀝青大都經過(guò)天然蒸發、氧化，一(yi)般已不含有任何(he)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. 瀝青材料分(fen)為地瀝青和焦油(yóu)瀝青兩大類。地瀝(li)青又分為天然瀝(lì)青和石油瀝青，天(tiān)然瀝青是石油滲(shen)出地表經長期暴(bào)露和蒸發後的殘(cán)留物；石油瀝青是(shi)将精制加工石油(you)所殘餘的渣油，經(jīng)适當的工藝處理(li)後得到的産品。焦(jiāo)油瀝青是煤、木材(cái)等有機物幹餾加(jiā)工所得的焦油經(jīng)再加工後的産品(pǐn)。工程中采用的瀝(lì)青絕大多數是石(shi)油瀝青，石油瀝青(qīng)是複雜的碳氫化(huà)合物與其非金屬(shu)衍生物組成的混(hùn)合物。通常瀝青閃(shǎn)點在240℃~330℃之間，燃點比(bi)閃點約高3℃~6℃度，因此(ci)施工溫度應控制(zhi)在閃點以下。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(qing)輸送泵是容(rong)積式内齧合齒輪(lún)泵，主動齒輪（外轉(zhuǎn)子）帶動被動齒輪(lún)（内轉子）旋轉時，不(bú)斷産生封閉的空(kong)間，在吸油區齒輪(lún)逐漸脫離齧合而(er)液體不斷地充滿(man)齒間并被帶到出(chu)油區，齒輪在出油(you)區進入齧合時液(ye)體被排出。兩個旋(xuán)轉齒輪的共同作(zuo)用，形成一個穩定(ding)的體積排量，沒有(you)脈動。由于泵是完(wan)全對稱的，泵可以(yi)反轉，液流方向也(ye)随之改變。但應注(zhù)意，泵的轉向可能(neng)受到密封或泵内(nèi)其它結構的限制(zhi)，用戶有反轉要求(qiu)時應在訂貨時做(zuò)出說明。 該泵結構(gòu)簡單，适用範圍廣(guang)，可以輸送高粘度(dù)和低粘度的各種(zhong)液體，最高輸送粘(zhan)度可達500000cst-40— 不同的使(shi)用條件，泵的結構(gou)形式可能不同，具(jù)體應用請向廠家(jia)或本公司客戶代(dài)表咨詢。需要指出(chū)的是泵的轉速愈(yù)高，泵的磨損愈嚴(yan)重，液體中如含有(yǒu)磨料物質，泵的材(cái)料應選用耐磨材(cai)質，在此種工況下(xia)，泵的壓力和轉速(sù)都應降低，高溫條(tiáo)件下，則應增加泵(bèng)的間隙，并采用耐(nai)熱材料 。
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