Oscillating-type heating drying system and method used for blanks

A heating and drying, oscillating technology, applied in the direction of heating devices, drying gas arrangement, lighting and heating equipment, etc., can solve the problems of prolonged drying time, cracking, and umbrella drop of electric porcelain insulators, so as to reduce the drying cycle and energy consumption, increase Loading volume, effect of reducing manufacturing and maintenance costs

CN103344102BActive Publication Date: 2015-04-08SHAANXI CECEP ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2015-04-08

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Abstract

The invention belongs to the technical field of oscillating-type heating drying, and discloses an oscillating-type heating drying system and system used for blanks. The oscillating-type heating drying system used for the blanks comprises a drying chamber for placing the blanks to be dried, an air return pipe, a circulating fan, a burner, a first air feeding pipe, an oscillating valve, a second air feeding pipe and a third air feeding pipe, wherein the air return pipe, the circulating fan, the burner and the first air feeding pipe are sequentially connected; the oscillating valve comprises a barrel-shaped valve body and a rectangular valve plate; an inlet end of the valve body is connected with an outlet of the first air feeding pipe, a first outlet end of the valve body is connected with an inlet of the second air feeding pipe, and a second outlet end of the valve body is connected with an inlet of the third air feeding pipe. The oscillating-type heating drying method includes the following steps that the rectangular valve plate periodically rotates around the axis of the valve body, and the gas flow of the second air feeding pipe and the gas flow of the third air feeding pipe periodically change along with the periodical rotating of the rectangular valve plate; water steam is discharged out by the circulating fan, gas is provided to the burner, and the gas is heated by the burner.
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Description

technical field

[0001] The invention belongs to the technical field of oscillating heating and drying, and in particular relates to an oscillating heating and drying system for green bodies and a drying method thereof. Dry. Background technique

[0002] At present, the direct-fired rapid dryer commonly used for drying the green body is a batch dryer. Its working principle is: use natural gas, city gas or liquefied petroleum gas as fuel, ignite the burner through an automatic ignition system, and burn the diluted The combustion products are mixed with the circulating air sent by the circulating fan and enter the drying chamber as the drying medium, and then the body to be dried is heated in the drying chamber by convection, and the air is drawn out from the return air pipe by the circulating fan. In the above drying process, the circulation and movement of the drying medium (hot air) affect the uniformity of temperature and humidity in the drying room, and ultimately affect ...

Examples

Embodiment Construction

[0026] The present invention will be further described below in conjunction with accompanying drawing:

[0027] In the production of electric porcelain, refractory materials, ceramics, abrasives and other industries, the drying stage is an essential process. The drying process can be divided into the following drying methods according to the type of heat source and the heating method: convection drying, conduction drying, far-infrared drying, microwave drying, freeze drying, vacuum drying, etc. During the drying process, the moisture in the green body to be dried must first migrate from the inside of the green body to the surface of the green body, and then vaporize on the surface and enter the air body. If the process is carried out quickly, the drying time is short and the rate of the drying process is high. However, in industries such as electric porcelain, building materials, refractory materials, daily-use ceramics, and sanitary ware, if the drying speed of the green bod...