Wuxi Hongdinghua Chemical Equipment Co.,Ltd.

Our Major product serial as following: column Distillation columns, Extraction columns (Towers) Distillation tower(column), Distillation tower(column) Packing of distillation column , Extraction tower Extraction tower Distillation column(tower) is a type of device that vapor and liquid get close contact inside the column for distilling. The light components (low boiling matter) in the liquid phase are transferred to the gas phase, and the heavy components (high boiling matter) in the gas phase are transferred to the liquid phase by using the fact that each component in the mixture has different volatility, that means the vapor pressure of each component is different when at the same temperature, so as to achieve the purpose of separation. Distillation column (tower) is also a heate and medium transferring device widely used in petrochemical production. The equipment used in the distillation process is called distillation column （tower), which can be divided into two categories: ① plate tower, in which the gas-liquid two phases generally make multiple countercurrent contacts, and the gas-liquid two phases on each plate generally make cross flow. ② Packed column (tower), gas-liquid two phases are in continuous countercurrent contact. General distillation unit consists of distillation column(tower)body, condenser, reflux tank, reboiler and other equipment. The feed enters the tower from a certain section of the tray in the distillation column(tower), which is called the feed plate. The feed plate divides the distillation tower into two sections, the upper part of the feed plate is called the fine distillation section, and the lower part of the feed plate is called the stripping section. Extraction is one of the important unit operations for separating and purifying substances. It is a unit operation to get component separation utilizing the difference of solubility of each component in the mixture in the added solvent. During the liquid-liquid extraction operation, two types of liquid flow in the column(tower) in type of countercurrent flow, one of which is a dispersed phase, and the other is a continuous phase liquid in the form of liquid droplets. The concentration of the two liquid phases changes continuously in different form in the equipment, and the separation between the two liquid phases gets accomplished at both ends of the column( tower) because of the density difference. If the light phase is the dispersed phase, the phase interface appears in the upper part of the column(tower); otherwise, the phase interface appears in the lower part of the column( tower).