新聞中(zhōng)心
| 瀝(li)青輸送泵NYP110-RU-T2-W11高(gāo)粘度泵配XWD11KW-7-13流(liu)量7.3m3/h,壓力0.8Mpa | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
瀝青是由(yóu)不同分子量(liàng)的碳氫化合(hé)物及其非金(jin)屬衍生物組(zu)成的黑褐色(se)複雜混合物(wu)，呈液态，是一(yi)種防水防潮(chao)和防腐的有(you)機膠凝材料(liào)。用于塗料、塑(sù)料、橡膠等工(gong)業以及鋪築(zhù)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(wén)名 瀝青Chinese name asphalt EINECS登錄号232-490-9EINECS registration number 232-490-9 熔(rong) 點 485Melting point 485 沸 點<470 ℃boiling point < 470 ℃< iv> 水溶(rong)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(bàn)固體或液體(ti)狀态Outside view half solid or liquid state 閃 點204.4Flash point 204.4 危(wei)險性描述健(jian)康危害：中等(deng)毒性Describe health hazard risk: medium toxicity 來 源煤(méi)和石油To the source of coal and oil 成 分(fen)瀝青質和樹(shu)脂Into asphaltene and resin 含 量99.48%Containing 99.48% 爆炸(zha)下限 30(g/立方厘(lí)米)The lower explosive limit (30 g/cm3) 導電性能(neng)絕緣體(常溫(wen)下)Conductivity insulator (room temperature) 瀝青屬于(yú)憎水性材料(liao)，它不透水，也(yě)幾乎不溶于(yú)水、丙酮、乙醚(mí)、稀乙醇，溶于(yú)二硫化碳、四(sì)氯化碳、氫氧(yang)化鈉。瀝青及(ji)其煙氣對皮(pí)膚粘膜具有(yǒu)刺激性，有光(guāng)毒作用和緻(zhì)癌作用。我國(guó)三種主要瀝(li)青的毒性：煤(méi)焦瀝青>頁岩(yán)瀝青>石油瀝(li)青，前二者有(you)緻癌性。瀝青(qing)的主要皮膚(fu)損害有：光毒(dú)性皮炎，皮損(sǔn)限于面、頸部(bù)等暴露部分(fen)；黑變病，皮損(sǔn)常對稱分布(bu)于暴露部位(wèi)，呈片狀，呈褐(he)－深褐－褐黑色(sè)；職業性痤瘡(chuang)；疣狀贅生物(wu)及事故引起(qi)的熱燒傷。此(ci)外，尚有頭昏(hūn)、頭脹，頭痛、胸(xiōng)悶、乏力、惡心(xin)、食欲不振等(deng)全身症狀和(he)眼 、鼻、咽部的(de)刺激症狀。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)焦瀝青Coal tar 石油瀝青(qing)asphalt 石油瀝青是(shi)原油蒸餾後(hòu)的殘渣。根據(ju)提煉程度的(de)不同，在常溫(wen)下成液體、半(ban)固體或固體(tǐ)。石油瀝青色(sè)黑而有光澤(zé)，具有較高的(de)感溫性。由于(yú)它在生産過(guo)程中曾經蒸(zheng)餾至400℃以上，因(yin)而所含揮發(fā)成分甚少，但(dàn)仍可能有高(gao)分子的碳氫(qing)化合物未經(jing)揮發出來，這(zhe)些物質或多(duo)或少對人體(ti)健康是有害(hài)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. 天然瀝青(qing)Natural asphalt 天然瀝青儲(chu)藏在地下，有(yǒu)的形成礦層(céng)或在地殼表(biao)面堆積。這種(zhǒng)瀝青大都經(jing)過天然蒸發(fa)、氧化，一般已(yǐ)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(cái)料分為地瀝(li)青和焦油瀝(lì)青兩大類。地(dì)瀝青又分為(wéi)天然瀝青和(he)石油瀝青，天(tiān)然瀝青是石(shí)油滲出地表(biao)經長期暴露(lu)和蒸發後的(de)殘留物；石油(yóu)瀝青是将精(jīng)制加工石油(yóu)所殘餘的渣(zha)油，經适當的(de)工藝處理後(hòu)得到的産品(pǐn)。焦油瀝青是(shì)煤、木材等有(you)機物幹餾加(jia)工所得的焦(jiāo)油經再加工(gōng)後的産品。工(gōng)程中采用的(de)瀝青絕大多(duō)數是石油瀝(lì)青，石油瀝青(qīng)是複雜的碳(tàn)氫化合物與(yu)其非金屬衍(yǎn)生物組成的(de)混合物。通常(chang)瀝青閃點在(zài)240℃~330℃之間，燃點比(bi)閃點約高3℃~6℃度(du)，因此施工溫(wen)度應控制在(zài)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(lì)青輸送泵是容積式(shì)内齧合齒輪(lún)泵，主動齒輪(lún)（外轉子）帶動(dòng)被動齒輪（内(nèi)轉子）旋轉時(shí)，不斷産生封(feng)閉的空間，在(zài)吸油區齒輪(lun)逐漸脫離齧(nie)合而液體不(bu)斷地充滿齒(chǐ)間并被帶到(dào)出油區，齒輪(lun)在出油區進(jìn)入齧合時液(ye)體被排出。兩(liang)個旋轉齒輪(lún)的共同作用(yòng)，形成一個穩(wen)定的體積排(pái)量，沒有脈動(dòng)。由于泵是完(wan)全對稱的，泵(bèng)可以反轉，液(ye)流方向也随(sui)之改變。但應(yīng)注意，泵的轉(zhuǎn)向可能受到(dào)密封或泵内(nei)其它結構的(de)限制，用戶有(yǒu)反轉要求時(shí)應在訂貨時(shi)做出說明。 該泵結構(gou)簡單，适用範(fan)圍廣，可以輸(shū)送高粘度和(hé)低粘度的各(gè)種液體，最高(gao)輸送粘度可(ke)達500000cst。溫度(du)範圍自-40—
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