Rotary wood kiln for firing potteries

Abstract

A rotary wood kiln for firing potteries comprises a kiln chamber (1) constructed with bricks, a furnace hearth (2) located beside the kiln chamber, a flame path (3) communicating with the kiln chamberand the furnace hearth, a chimney (4) communicating with the kiln chamber, and a basement (5) located under the kiln chamber; a circular channel communicating with the basement is formed in the center of the bottom of the kiln chamber; a rotary plate mechanism for holding the potteries is arranged in the circular channel; a central shaft (6a) of the rotary plate mechanism vertically extends downwards into the basement (5); and the lower portion of the central shaft is connected with a rotating mechanism for driving the central shaft to rotate. The positions of the potteries in the kiln chamber can be rotated in the firing process, the heating uniformity of the potteries in all direction and uniformity of falling ash are improved, the scrap rate is lowered, and the condition of finished products is improved.

Description

technical field [0001] The invention belongs to the technical field of kiln structure for firing pottery and porcelain. Background technique [0002] There are many kinds of pottery in our country, such as the famous purple sand pottery in Yixing, Jiangsu, Nixing pottery in Qinzhou, Guangxi, purple pottery in Jianshui, Yunnan, and Rongchang pottery in Sichuan. Traditional pottery firing uses wood as the fuel of the kiln, commonly known as firewood, and the kiln that uses firewood is called firewood kiln. During the process of firing pottery in a firewood kiln, natural ash will form on the surface of the pottery, and the color of the pottery will produce unpredictable and colorful changes. The final product is natural and simple, with different colors and unique characteristics, so it is popular special favorite. [0003] However, the existing firewood kilns are kilns with a fixed structure. The pottery is in a static state when placed in the kiln chamber for firing, and th...

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Problems solved by technology

[0003] However, the existing firewood kilns are kilns with a fixed structure. The pottery is in a static state when placed in the kiln chamber for firing, and the firewood is burned in the hearth of the kiln. When the pottery is in a static state, the pottery will receive different degrees of heat in all directions (the side facing the fire path will heat up faster), and the amount of ash received will also vary greatly, resulting in serious damage such as deformation and cracking of the pottery. , the color deviation of the pottery is too large, and the ash fall is not uniform, which not only increases the production cost, but also makes it difficult to effectively control the quality and appearance of the fired pottery.

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