Methods of eliminating steam resistance

Abstract

The invention provides a method for removing vapor barrier. An exhaust hole is reversed in a heater. The exhaust hole is connected with an exhaust pipe and a water collecting box, wherein the heater is connected with water inlet ends of a water pump and a rolling roller through process water inlet pipes; a water outlet end of the rolling roller and a cold and hot exchanger are connected through a process water outlet pipe; the exhaust pipe is mounted on the heater and is communicated with the water collection tank; a cooling water pipe and a process water pipe are connected in series in the cold and hot exchanger; and the process water outlet pipe is connected with the process water pipe and is communicated with the heater to form a process water circulation closed loop. The method has the characteristics of reasonable structure, convenience in maintenance, controlled technique, accurate temperature, no pollution, low cost, high efficiency, random exhaust, high security and reliability and the like. Water is discharged in a water collection tank through the exhaust pipe when the vapor barrier generates in a heating process, so that the vapor barrier can be entirely removed when water is heated and circulated, and the stability of the water temperature is ensured. Therefore, the temperature error of the rolling roller is reduced, and the ideal technique temperature is reached, so that the quality of the rolling product is improved. The method is an ideal special method for heating temperature control rolling equipment.

Description

technical field [0001] The invention relates to auxiliary equipment for plastic processing, and more specifically relates to a method for eliminating steam resistance of heating press rollers of various calendering equipment. Background technique [0002] At present, most of the heating rollers in the calendering equipment for producing plastic sheets and sheets are heated directly with steam or hot water. In the traditional heating method, the gas generated in the water hinders the flow of water during the heating process, resulting in heating. The circulating water in the roller is blocked, the temperature of the pressing roller is uneven or cannot reach the temperature required by the process, and cannot meet the process temperature required by the production. Product quality cannot be guaranteed, production efficiency is low, energy consumption increases, and production costs rise. Thereby can't satisfy the use requirement of present rolling product production and proce...

AI Technical Summary

Problems solved by technology

In particular, the open exhaust channel technology is used to ensure the process temperature of the calender rolls in the calendered product production line, effectively overcome the shortcomings of uneven temperature in the production of plates and sheets, improve the yield of plates and sheets, and realize It realizes the effect of controllable process temperature, improves production efficiency and one-off probability, saves energy and raw materials, and reduces production cost. It is an ideal special method for controllable process temperature of various rolled products such as sheets and plates.

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