Disc-type continuous pasty material film dryer

Abstract

The invention discloses a continuous pasty material film dryer. The continuous pasty material film dryer comprises a drying disc; a heat conduction oil cavity is arranged below the drying disc; one end of the heat conduction oil cavity is provided with an oil intake pipe, and the other end of the heat conduction oil cavity is provided with an oil outlet; the bottom of the heat conduction oil cavity is provided with a heating sheet. According to the invention, the film thickness and the drying time can be regulated through regulating the rotation speed of a main shaft and the force application size of a pressing roller so as to achieve the aims of uniform drying and ideal effects; material distribution, film pressing and dry mud scraping devices are arranged on a same main shaft system, the operation is completed continuously, and the dryer can operate periodically and continuously; a pasty material is thin in material layer, and the main shaft rotation speed is low, so that the required power is low, and the electricity consumption is less; the drier is used for drying by virtue of conductive heat, the heat efficiency is high, and the energy consumption is low; the dryer is convenient to install, and the occupied area is small; the drier is installed obliquely through a support, and thus the dried pasty material is convenient to unload.

Description

technical field [0001] The invention relates to the field of dryers, in particular to a disc type film continuous dryer. Background technique [0002] With the continuous improvement of the level of urbanization, the discharge of industrial sewage and domestic sewage is increasing, and the output of pasty materials in sewage treatment plants has increased sharply. In recent years, the annual discharge has reached 20 million tons. Paste materials have a very high moisture content and contain a large amount of organic matter, bacteria, viruses, and heavy metal compounds such as zinc, copper, lead, and cadmium. Therefore, paste materials must be properly handled. [0003] The high moisture content makes the paste-like material very large in volume, which brings a lot of inconvenience to handling, transportation and utilization. Therefore, the paste-like material must be dehydrated and dried first. Common drying methods include convection (direct drying), conduction (indirect d...

AI Technical Summary

Problems solved by technology

At present, the most common drying equipment has the following problems: (1) Due to the high viscosity of the paste-like material, the drying equipment is in the form of a colloidal mass, which is difficult to crush; (2) The surface of the paste-like material is dry first during the drying process , forming a drying shell, which affects the drying of the paste-like material inside; (3) Since the paste-like material has a small thermal conductivity, a large latent heat of water vaporization, and is difficult to break, the energy consumption in the entire drying process is very large, which directly improves the dryness. cost

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