An energy-saving chemical distillation tower for the production of hydroxypropyl methylcellulose

Abstract

The invention provides an energy-saving chemical distillation tower for the production of hydroxypropyl methylcellulose, which belongs to the technical field of chemical distillation towers and solves the problem that maintenance personnel cannot fully Guaranteed to be able to grasp the protective cage on the ladder structure, and then make the maintenance personnel very prone to safety accidents, including: the tower body, the upper and lower parts on the left side of the tower body are respectively provided with a return pipe and a steam inlet, and the tower body There is a liquid inlet in the middle part on the right side. When the maintenance personnel step on the air or slip when climbing the ladder structure, the human body drives the limit mechanism to slide down on the ladder structure through the protective mechanism under the action of gravity, and because the head end of the limit slider in the limit mechanism and the rectangular clamp The clamping relationship of the groove prevents the limit mechanism from sliding downwards, thereby quickly pulling the maintenance personnel through the protection mechanism, thereby making the maintenance personnel less likely to have safety accidents, and thus improving the safety of the climbing ladder structure of the chemical distillation tower.

Description

technical field [0001] The invention belongs to the technical field of chemical distillation towers, and more specifically relates to an energy-saving chemical distillation tower for producing hydroxypropyl methylcellulose. Background technique [0002] The distillation column is a chemical equipment made of rare metal titanium and other materials and its alloy materials. It has the characteristics of high strength, high toughness, high temperature resistance, corrosion resistance, and light specific gravity; therefore, it is widely used in chemical industry, petrochemical industry, metallurgy, light industry, and textile industry. , Alkali, pharmaceuticals, pesticides, electroplating, electronics and other fields. [0003] For example, application number: CN201911065415.6 The present invention relates to the field of distillation towers, specifically a distillation tower with a steam buffer function, including: a distillation tower body, a buffer mechanism, a cooling mechan...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the above-mentioned technical problems, the present invention provides an energy-saving chemical distillation tower for hydroxypropyl methylcellulose production, to solve the problem that although the ladder structure on the existing chemical distillation tower is equipped with protective cages, when maintenance personnel When stepping on the air or slipping on the climbing ladder structure, some maintenance personnel cannot 100% guarantee that they can grasp the protective cage on the ladder structure, which makes the maintenance personnel very prone to safety accidents, thereby reducing the chemical distillation tower. The safety of the ladder structure, and when the liquid in the existing chemical distillation tower flows downward on the tray structure, part of the liquid will flow down the inner wall of the tower, so that the liquid in contact with the wall cannot be separated from the rising steam. Fully contact, thereby reducing the distillation effect of the chemical distillation tower, and when the existing chemical distillation tower is distilling, a large number of bubbles will be generated on the upper surface of the liquid on the plate structure, and these bubbles will not be effectively diffused, and then will The problem of reducing the rising efficiency of steam

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