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| 瀝青(qīng)輸送泵NYP110-RU-T2-W11高(gāo)粘度泵配(pèi)XWD11KW-7-13流量7.3m3/h,壓力(li)0.8Mpa | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 發布時間(jian)：2015-1-4 14:40:04 點擊次數(shù)： | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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 CAS登錄号(hào)8052-42-4The CAS login number 8052-42-4 EINECS登錄号232-490-9EINECS registration number 232-490-9 沸 點<470 ℃boiling point < 470 ℃< iv> 水(shui)溶性不溶(róng)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(gu)體或液體(tǐ)狀态Outside view half solid or liquid state 閃 點(dian)204.4Flash point 204.4 危險性描(miáo)述健康危(wēi)害：中等毒(dú)性Describe health hazard risk: medium toxicity 來 源煤(méi)和石油To the source of coal and oil 成(chéng) 分瀝青質(zhì)和樹脂Into asphaltene and resin 含(han) 量99.48%Containing 99.48% 爆炸下(xia)限 30(g/立方厘(li)米)The lower explosive limit (30 g/cm3) 導電性(xing)能絕緣體(ti)(常溫下)Conductivity insulator (room temperature) 瀝(li)青屬于憎(zeng)水性材料(liao)，它不透水(shui)，也幾乎不(bú)溶于水、丙(bing)酮、乙醚、稀(xī)乙醇，溶于(yú)二硫化碳(tan)、四氯化碳(tan)、氫氧化鈉(na)。瀝青及其(qi)煙氣對皮(pí)膚粘膜具(ju)有刺激性(xing)，有光毒作(zuo)用和緻癌(ai)作用。我國(guo)三種主要(yào)瀝青的毒(dú)性：煤焦瀝(lì)青>頁岩瀝(lì)青>石油瀝(lì)青，前二者(zhe)有緻癌性(xing)。瀝青的主(zhu)要皮膚損(sǔn)害有：光毒(du)性皮炎，皮(pi)損限于面(mian)、頸部等暴(bào)露部分；黑(hēi)變病，皮損(sǔn)常對稱分(fèn)布于暴露(lu)部位，呈片(piàn)狀，呈褐－深(shēn)褐－褐黑色(se)；職業性痤(cuo)瘡；疣狀贅(zhui)生物及事(shi)故引起的(de)熱燒傷。此(ci)外，尚有頭(tóu)昏、頭脹，頭(tóu)痛、胸悶、乏(fá)力、惡心、食(shí)欲不振等(deng)全身症狀(zhuang)和眼 、鼻、咽(yān)部的刺激(jī)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(jiāo)瀝青Coal tar 石油(you)瀝青asphalt 石油(you)瀝青是原(yuan)油蒸餾後(hòu)的殘渣。根(gēn)據提煉程(cheng)度的不同(tong)，在常溫下(xià)成液體、半(ban)固體或固(gu)體。石油瀝(li)青色黑而(ér)有光澤，具(jù)有較高的(de)感溫性。由(yóu)于它在生(sheng)産過程中(zhong)曾經蒸餾(liu)至400℃以上，因(yin)而所含揮(hui)發成分甚(shen)少，但仍可(kě)能有高分(fèn)子的碳氫(qing)化合物未(wèi)經揮發出(chū)來，這些物(wù)質或多或(huò)少對人體(ti)健康是有(you)害的。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(rán)瀝青儲藏(cáng)在地下，有(you)的形成礦(kuàng)層或在地(dì)殼表面堆(duī)積。這種瀝(li)青大都經(jing)過天然蒸(zheng)發、氧化，一(yi)般已不含(hán)有任何毒(dú)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(cai)料分為地(dì)瀝青和焦(jiao)油瀝青兩(liǎng)大類。地瀝(li)青又分為(wéi)天然瀝青(qīng)和石油瀝(li)青，天然瀝(lì)青是石油(yóu)滲出地表(biǎo)經長期暴(bao)露和蒸發(fa)後的殘留(liú)物；石油瀝(li)青是将精(jīng)制加工石(shi)油所殘餘(yú)的渣油，經(jing)适當的工(gōng)藝處理後(hou)得到的産(chǎn)品。焦油瀝(lì)青是煤、木(mù)材等有機(ji)物幹餾加(jia)工所得的(de)焦油經再(zài)加工後的(de)産品。工程(chéng)中采用的(de)瀝青絕大(dà)多數是石(shi)油瀝青，石(shi)油瀝青是(shì)複雜的碳(tan)氫化合物(wu)與其非金(jīn)屬衍生物(wu)組成的混(hun)合物。通常(cháng)瀝青閃點(dian)在240℃~330℃之間，燃(rán)點比閃點(diǎn)約高3℃~6℃度，因(yin)此施工溫(wen)度應控制(zhi)在閃點以(yi)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)送泵是容積式(shì)内齧合齒(chǐ)輪泵，主動(dong)齒輪（外轉(zhuan)子）帶動被(bèi)動齒輪（内(nèi)轉子）旋轉(zhuǎn)時，不斷産(chǎn)生封閉的(de)空間，在吸(xi)油區齒輪(lun)逐漸脫離(lí)齧合而液(ye)體不斷地(di)充滿齒間(jian)并被帶到(dào)出油區，齒(chǐ)輪在出油(yóu)區進入齧(nie)合時液體(tǐ)被排出。兩(liang)個旋轉齒(chi)輪的共同(tong)作用，形成(chéng)一個穩定(ding)的體積排(pái)量，沒有脈(mò)動。由于泵(bèng)是完全對(dui)稱的，泵可(kě)以反轉，液(yè)流方向也(yě)随之改變(bian)。但應注意(yi)，泵的轉向(xiàng)可能受到(dao)密封或泵(bèng)内其它結(jie)構的限制(zhì)，用戶有反(fan)轉要求時(shi)應在訂貨(huo)時做出說(shuō)明。 該泵結構(gou)簡單，适用(yòng)範圍廣，可(ke)以輸送高(gao)粘度和低(dī)粘度的各(gè)種液體，最(zuì)高輸送粘(zhan)度可達500000cst。溫度範(fàn)圍自-40— 不同的使(shǐ)用條件，泵(beng)的結構形(xing)式可能不(bú)同，具體應(ying)用請向廠(chang)家或本公(gōng)司客戶代(dai)表咨詢。需(xu)要指出的(de)是泵的轉(zhuǎn)速愈高，泵(bèng)的磨損愈(yù)嚴重，液體(tǐ)中如含有(you)磨料物質(zhì)，泵的材料(liào)應選用耐(nài)磨材質，在(zai)此種工況(kuang)下，泵的壓(yā)力和轉速(su)都應降低(di)，高溫條件(jian)下，則應增(zeng)加泵的間(jiān)隙，并采用(yòng)耐熱材料(liào)
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