脱气塔

The invention provides an anhydrous hydrogen fluoride production process; reaction raw materials fluorite powder and sulfate are mixed by an external mixer and enter into a converter with jacket; hot air with the temperature of 350 DEG C to 600 DEG C is fed in the jacket; the fluorite powder and the sulfate have chemical reaction and produce hydrogen fluoride; the produced hydrogen fluoride enters into a scrubber from a furnace header to be washed; the washed hydrogen fluoride enters into an intermediate tank from a condenser, and then receives distillation and degasification to prepare the finished product anhydrous hydrogen fluoride; solid residue is emitted from a furnace tail.

本发明提供一种无水氟化氢生产工艺，反应原料萤石粉及硫酸经外混器混合后进入带有夹套的转炉，向夹套内通入350～600℃的热风，萤石粉和硫酸在发生化学反应生成氟化氢，生成的氟化氢气体由炉头进入洗涤塔进行洗涤，洗涤后的氟化氢由冷凝器进入中间槽，然后经过精馏、脱气制得成品无水氟化氢；固体残渣由炉尾排出。

The degassing tower is the equipment of metal chemical industry to ensure continuity, high quality and high yield in hydrogen fluoride production.

脱气塔是确保氟化氢生产连续、优质、高产的金属化工设备。

Styrene degassing tower is one of chief equipments of styrene monomer recover system of StyreneButadiene Rubber device.

苯乙烯脱气塔是丁苯橡胶装置中苯乙烯单体回收系统的主要设备。

In order to improve demisting efficiency of mist eliminator in terms of different droplet diameter and reduce blockage of gas gas heater in desulfurization system, numerical simulation and experimental study were carried out on the mist eliminator in bubble desulfurizer.

为提高除雾器对不同粒径小液滴的脱除效果，减轻脱硫系统气气换热器的堵塞程度，对鼓泡脱硫塔除雾器性能进行了数值分析和实验研究。

Based on measuring the temperature,pressure and strain on the surface for a typical vacuum tower which from empty to full-load operation process,the article inspects the situation of stress in the region of injuries.

通过对某厂真空脱气反应塔从空载到满负荷运行过程中温度、压力和表面应变的测量，考察塔体受伤区域的应力状况。

Operation analysis and investigation show that it is caused by the inappropriate design of hot vapor bypass control system, so the revamping has been carried out as follows: The diameter of hot vapor bypass pipeline has been enlarged from DN 40 mm to 80 mm, and the pressure difference of hot vapor bypass adjusting valve decreased from 50 kPa to 35 kPa; A vent pipeline for non-condensable gas fro.

改造的措施主要有：增大了热旁路管道的直径(由DN40mm增大到DN80mm)，并降低了热旁路调节阀的压差取值(由50kPa降低到35kPa)；增设一条自冷凝器壳程出口至回流罐的不凝气放空管道；对脱丁烷塔分程控制系统进行了改造，即将调节器输出信号的0-45%，55%%-100%分别用于控制热旁路调节阀和放空阀。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。