Roller type heat exchange equipment capable of being used for n-tert-butyl acrylamide production

Abstract

The invention relates to roller type heat exchange equipment. The roller type heat exchange equipment comprises a roller which is horizontally arranged, is supported on a base through a supporting roller, and is rotatably connected relative to the base, a plurality of groups of heat exchange tubes which are horizontally arranged in the roller, and an inlet and an outlet for a heat exchange medium,wherein when the roller is in on a still position, a charge hole is formed in the top of the roller, and a discharge hole is formed in the bottom of the roller; a gas inlet is formed in one side endsurface, in the axial direction, of the roller, and a gas exhaust hole is formed in the other side end surface, in the axial direction, of the roller; sides of each group of heat exchange tubes are hung on the roller wall of the roller, and the other sides of each group of the heat exchange tubes are free ends; the heat exchange tubes extend by certain length in the roller or extend to the other end of the roller from one end of the roller; the inlet and the outlet are formed in the roller; the inlet communicates with ends of each group of heat exchange tubes through branch pipelines arrangedin the roller; and the outlet communicates with a pipeline which is jointed with the other ends of each group of heat exchange tubes. The roller type heat exchange equipment increases a heat exchangearea in the roller, and improves drying efficiency.

Description

technical field [0001] The invention relates to the technical field of drying and / or sublimation equipment in the production of chemical products, and more specifically relates to a heat exchange equipment that can be used in the production of tert-butylacrylamide. Background technique [0002] Many powder and granular products, including tert-butylacrylamide, or liquid and semi-fluid products require drying and / or sublimation, or evaporative concentration; heat exchange equipment is required in these processes to provide energy for removal of materials moisture or solvents, etc., or promote the sublimation or evaporation of substances. A drum heat exchange device with a rotatable shell is a commonly used device. [0003] However, the existing drum-type heat exchange equipment mainly adopts the method of providing a jacket on the shell for heat exchange, which makes the heat exchange area of ​​the equipment small and causes waste of space in the shell. There are also some ...

AI Technical Summary

Problems solved by technology

[0003] However, the existing drum-type heat exchange equipment mainly only adopts the method of setting the jacket on the shell for heat exchange, which makes the heat exchange area of ​​the equipment small, resulting in a waste of space in the shell

There are also some structures in the shell that increase the heat exchange area, but the heat exchange structure is fixed relative to the shell, and the balling problem is usually serious when used for drying solid powder; the heat exchange structure is usually a simple planar form, without energy The heat exchange structure that lifts up the material more effectively, the material simply accumulates at the bottom when turning and tumbling, and the heat exchange tubes in the middle and upper part usually cannot contact the material, and the heating effect on the material is not ideal

For applications that require a large amount of gas flow to carry away the evaporation / sublimation gas, the gas is usually simply introduced from the gas phase space instead of from the bottom of the material pile, so the gas only flows through the upper space of the material pile surface, which is less effective

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