Raschig ring filling material
A Raschig ring filler, terephthalate epoxy resin technology, applied in chemical/physical/physical chemical processes, chemical instruments and methods, chemical/physical processes, etc., can solve the problem of reducing specific surface area and porosity, Problems such as low internal surface wetting rate, liquid channel flow and wall flow, etc., achieve the effect of increasing void ratio, long service life, and preventing channel flow and wall flow
Inactive Publication Date: 2015-11-04
SUZHOU KD PETROCHEM ENG
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Problems solved by technology
[0004] Raschig ring packing has been widely used due to its ease of manufacture and low price, but there are also some disadvantages, such as the liquid often has serious channel flow and wall flow phenomenon, and the internal surface wetting rate of Raschig ring packing is low, so mass transfer speed is not high
Moreover, when the Raschig ring packing is stacked, it is mostly in line contact, and the contact area increases, which reduces the specific surface area and porosity, and reduces the production efficiency.
Method used
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Embodiment
[0014] The Raschig ring packing of this embodiment includes a tubular body 1 , and two ends of the tubular body 1 are provided with symmetrical horn-shaped flares 2 , and the diameter of the outermost end of the horn-shaped flares 2 is twice the diameter of the tubular body 1 . The flared flare is half the length of the tubular body. The surface of the Raschig ring filler is sprayed with a corrosion-resistant coating, and the corrosion-resistant coating includes the following components in terms of weight percentage: 10%-20% terephthalate epoxy resin, 10%-15% polyvinyl formal , 11%-15% of cross-linking agent, 6%-8% of anhydrous additive, 2%-3% of catalyst, and the rest is water.
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The invention relates to a raschig ring filling material, which belongs to the technical field of petroleum chemical mass transfer separating equipment. The raschig ring filling material comprises a tubular body, the symmetrical trumpet-shaped flarings are arranged at two ends of the tubular body; a corrosion resisting coating is sprayed on the surface of the raschig ring filling material, the corrosion resisting coating comprises the following components by weight percentage: 10-20% of terephthalate epoxy resin, 10-15% of polyvinyl formal, 11-15% of cross-linking agent, 6-8% of anhydrous auxiliary agent, 2-3% of catalyst, and the balance of water. The symmetrical trumpet-shaped flaring are arranged at two ends of the tubular body, each filling material enables point contact while stacking, distribution is more uniform, porosity is increased, channeling and wall flow phenomena can be effectively prevented, wetting on the surface in the filling material is convenient due to trumpet-shaped flaring, and production efficiency is increased.
Description
technical field [0001] The invention relates to a Raschig ring packing, which belongs to the technical field of petrochemical mass transfer and separation equipment. Background technique [0002] In chemical engineering, packing refers to inert solid materials installed in packed towers, such as Pall rings and Raschig rings, etc., whose function is to increase the contact surface of gas-liquid and make them strongly mix with each other. Bulk packing is a granular body with a certain geometric shape and size, which is generally piled up in the tower in a random manner, also known as random packing or granular packing. According to different structural characteristics, bulk packing can be divided into ring packing, saddle packing, ring saddle packing and spherical packing. [0003] At present, the packed tower has been widely used in unit operations such as rectification, absorption, extraction, etc. in chemical, petroleum, pharmaceutical, environmental protection and other i...
Claims
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IPC IPC(8): B01J19/30
Inventor 牛录元孔逸君徐耀刚孙涛叶丽萍
Owner SUZHOU KD PETROCHEM ENG
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