Daily question in the tower equipment technology exchange section – participate in the prize-winning activity~ (02.03) The answer has been released

The feed is effectively filtered； Increase aperture within the allowed range ； Install anti-clogging structures (such as side holes, lateral redistribution, distribution pipes), and use new types of distributors (such as tray plates, etc.). Last edited by 263525689 on 2009-2-13 12:15.]

The causes of blockage are also varied, including solid impurity particles and material polymerization; in addition to considering the distributor, the process itself must also be taken into account.

1. Refining of raw materials 2. Modification of the trough-type overflow distribution 3. Pay attention to the operating temperature to prevent crystallization and blockage by substances that tend to crystallize

On the one hand, filters can be added; on the other hand, new types of distributors can be used.

The causes of blockage include 1) solid impurity particles and material aggregation, 2) an inappropriate processing procedure. Solutions and preventive measures: 1. Effectively filter the feed material ； 2. Increase pore size ； 3. Install a anti-clogging structure; 4. Use a new type of distributor.

It is necessary to prevent chips or other debris from entering the tower. To this end, on the one hand, it is required that the fillers and internal components of the tower be deburred, free of chips, and that the assembly process remain clean; on the other hand, appropriate measures are taken in terms of design and manufacturing processes, such as designing larger pore diameters ； Installing filters in the distributor, as well as setting up chip-blocking baffles in the pressure testing head or cover, are all effective measures to prevent the clogging of small holes.

Possible causes of blockage include uneven or excessive solid impurity particles； Material polymerization ； The process used is not suitable. Solutions and preventive measures: Effectively filter the feedstock ； Increase aperture size ； Install anti-clogging structure ； Use a new type of distributor ； Change the process.

The reasons for the blockage include: solid impurity particles in the raw materials, polymerization of the material, poor cleanliness inside the tower, or an inappropriate processing procedure. Solutions and preventive measures: Install additional filtering devices, increase the diameter of the distributors appropriately, use different types of distributors, and adjust the process parameters.

1. There is a problem with the medium. If there are many solid particles, their size is large, and the solids tend to coking, etc ； 2. Tray structure issues. For example, cap-type and float valves are more prone to clogging than tongue-type and jet-type ones ；

Since the small holes in the distributor can become clogged very easily, it is necessary to prevent chips or other debris from entering the tower. To this end, on the one hand, it is required that the fillers and internal components of the tower be deburred, free of chips, and that the assembly process remain clean; on the other hand, appropriate measures are taken in terms of design and manufacturing processes, such as designing larger pore diameters ； Installing filters in the distributor, as well as setting up chip-blocking baffles in the pressure testing head or cover, are all effective measures to prevent the clogging of small holes.

The most effective way is to install a filter. At the same time, the flow rate of the material can be increased relatively to reduce deposition at the holes in the distributor. If possible, filter the feed to reduce or even eliminate the presence of particles!

From a material perspective, using stainless steel in place of carbon steel and low-alloy steels: handshake

The boss came up with the task of designing a refining tower – I’m not sure what kind of specialized equipment this is ? If it is impurities, additional filters can be used; if it is crystals, increasing the temperature or changing the design of the distributor can be considered

To summarize briefly: Many people ask what a refining tower is; I’ll explain it here – it is a distillation tower used for purifying products, and that’s how we generally refer to it. The topics here are based on the problems that frequently arise in our factory’s operations. The frequent clogging of the small holes in the distributors is a common issue for us. Considering the conditions in our factory, I would like to summarize the following points again: 1. One of the reasons is a high solid content; factors contributing to this phenomenon include residue remaining on pipes, towers, and other components during start-up and shutdown processes, as well as broken packing material. 2. Operational issues: This leads to severe entrainment of heavy components; the freezing point of these heavy components is high, and they freeze on the upper distributor, causing blockages in the small holes. 3. Design issue: The design did not take into account the physical properties of the materials; the aperture of the small holes is too small, and in addition, the height of the tower packing is insufficient, resulting in severe separation entrainment. Prevention and control measures: 1. Improve the distributor by increasing the diameter of the small holes; provide three layers of liquid outlet holes at different heights on the distributor to prevent blockage of the first layer. 2. Strengthen operations to avoid severe entrainment of heavy components. 3. Increase the tower packing height to improve separation and entrainment.

The reasons for the blockage include: solid impurity particles in the raw materials, polymerization of the material, poor cleanliness inside the tower, or an inappropriate processing procedure. Solutions and preventive measures: Install additional filtering devices, increase the diameter of the distributors appropriately, use different types of distributors, and adjust the process parameters.