Industrial naphthalene composition

萘及萘系產(chǎn)品通常可由煤焦油與石油裂解焦油提取,有粗萘(工業(yè)萘)精萘和甲基萘之分.

Naphthalene and naphthalene series products can usually be extracted from coal tar and petroleum cracking tar, and can be divided into crude naphthalene (industrial naphthalene), refined naphthalene, and methyl naphthalene

工業(yè)萘的主要成份為有機(jī)化合物，是一種無(wú)色有光澤的片狀結(jié)晶，根據(jù)純度不同，萘可分為工業(yè)萘和精萘。工業(yè)萘的純度一般約為96%。工業(yè)萘進(jìn)一步提純脫除雜質(zhì)及脫硫后，可得到高純度的精萘

The main component of industrial naphthalene is organic compounds, which are colorless and glossy flake crystals. Depending on the purity, naphthalene can be divided into industrial naphthalene and refined naphthalene. The purity of industrial naphthalene is generally about 96%. After further purification, impurity removal, and desulfurization of industrial naphthalene, high-purity refined naphthalene can be obtained

精餾塔：工業(yè)萘精餾塔一般采用浮閥塔，浮閥板層50—70層，塔徑按處理量的大小有800—1200mm。

Distillation tower: Industrial naphthalene distillation towers generally use floating valve towers, with 50-70 layers of floating valve plates, and tower diameters ranging from 800-1200mm according to the processing capacity.

冷凝冷卻器：冷凝冷卻器是一個(gè)直徑為1.2m，長(zhǎng)為3.376m，冷卻面積為122m2的列管式換熱器，生產(chǎn)時(shí)冷卻水走管內(nèi)，萘蒸汽以138-140℃的溫度從器頂進(jìn)入管間，換熱后再以80—90℃的溫度從器底呈液體流出。冷卻水從器底進(jìn)入，器上部以40—50℃溫度流出

Condensing cooler: The condensing cooler is a tube and tube heat exchanger with a diameter of 1.2m, a length of 3.376m, and a cooling area of 122m2. During production, the cooling water flows through the tube, and naphthalene steam enters the tube at a temperature of 138-140 ℃ from the top of the condenser. After heat exchange, it flows out as a liquid at a temperature of 80-90 ℃ from the bottom of the condenser. Cooling water enters from the bottom of the device and flows out from the upper part at a temperature of 40-50 ℃

轉(zhuǎn)鼓結(jié)晶機(jī)：其結(jié)構(gòu)如圖1-8所示圖1-8 轉(zhuǎn)鼓結(jié)晶機(jī)轉(zhuǎn)鼓結(jié)晶機(jī)是將熔融狀態(tài)的萘連續(xù)冷卻成固態(tài)散裝萘的機(jī)器。轉(zhuǎn)鼓結(jié)晶機(jī)由機(jī)殼保溫池轉(zhuǎn)鼓刮刀冷卻水管和傳動(dòng)裝置組成。

Drum crystallizer: Its structure is shown in Figures 1-8. Drum crystallizer is a machine that continuously cools molten naphthalene into solid bulk naphthalene. The drum crystallization machine consists of a shell insulation pool, a drum scraper cooling water pipe, and a transmission device.

工業(yè)萘汽化冷凝冷卻器：汽化冷凝冷卻器由上下兩部分組成。

Industrial naphthalene vaporization condenser: The vaporization condenser consists of two parts: upper and lower.

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