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 crystalline flakes. 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 and desulfurization of industrial naphthalene, high-purity refined naphthalene can be obtained.

生產(chǎn)工業(yè)萘的主要設(shè)備

The main equipment for producing industrial naphthalene

1、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。

1. Distillation tower: Industrial naphthalene distillation tower generally uses a float valve tower, with 50-70 layers of float valve plates, and a tower diameter of 800-1200mm according to the processing capacity.

2、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

2. Condensing cooler: A condensing cooler is a tubular 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 pipes, and naphthalene vapor enters the pipes 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 top at a temperature of 40-50 ℃

3、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。

3. 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 crystallizer consists of a casing, insulation pool, drum, scraper, cooling water pipe, and transmission device.

4、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。

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

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