Drying method and drying equipment of wet rice paper poster

Abstract

The invention discloses a drying method of wet rice paper poster, which comprises the following steps: putting the wet rice paper poster on a drying bracket and then puting into a drying room for drying, wherein the drying process comprises a preheating step, a constant rate drying step and a temperature reduction drying step; reducing the moisture of the wet rice paper poster to 20%-25%; and drying the wet rice paper poster by a wet rice paper poster dryer. The equipment comprises a stand, heat transfer devices and temperature control devices, wherein the stand comprises vertical supporting poles and beams arranged in the transverse direction of each vertical supporting pole, and the stand is in a frame structure comprising the supporting poles and the beams; the temperature control devices control the heat transfer devices to transfer heat outward; the stand is divided into a plurality of layers of shelf pieces by the beams, and a heat transfer device is arranged between every two layers of the shelf pieces; and a bracket which can be used for placing the wet rice paper poster is arranged between two adjacent heat transfer devices. By adopting the drying method and the drying equipment of the wet rice paper poster, the ink absorption of the dried rice paper is ensured, the energy consumption is greatly reduced in the drying process, the drying efficiency is improved, the labor strength is reduced, and the environment can not be polluted.

Description

technical field [0001] The invention relates to a rice paper wet paste drying method and drying equipment thereof. Background technique [0002] In the production process of rice paper, each formed wet paper is piled up into a block and squeezed out 20-30% of the water. Rice paper can only be made after drying, and the drying stage of the wet paste plays a decisive role in the quality of the made rice paper. [0003] Traditional rice paper wet posts are dried in a baking room. The so-called baking room is an earthen stove built with bricks and connected to the baking board through a flue. The baking board is an empty wall structure with a heat conduction flue inside. , the exterior is smoothed with lime, and rice paper wet paste is leaned against it to dry, so the general baking room covers a large area; earth stoves generally use coal or firewood as fuel, and the exhaust gas is directly discharged into the atmosphere from the chimney, so it is harmful to the atmosphere. T...

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Problems solved by technology

[0003] Traditional rice paper wet posts are dried in a baking room. The so-called baking room is an earthen stove built with bricks and connected to the baking board through a flue. The baking board is an empty wall structure with a heat conduction flue inside. , the exterior is smoothed with lime, and rice paper wet paste is leaned against it to dry, so the general baking room covers a large area; earth stoves generally use coal or firewood as fuel, and the exhaust gas is directly discharged into the atmosphere from the chimney, so it is harmful to the atmosphere. The pollution is serious and the energy consumption is also high; after the rice paper is baked on one side, it is manually turned over to bake the other side, so the labor intensity of the workers is high and the drying efficiency is low; Relying on manual control, it is easy to cause waste

[0004] Due to the unique ink moistening requirements of rice paper, the drying methods and drying equipment in the modern papermaking process are not suitable for the production of rice paper. There is a longitudinal traction effect in mechanical papermaking, which makes the rice paper wet paste dry quickly, but at the same time causes The defects of rice paper wet-pasted sheets such as fast shrinkage, tight density, brittleness, and decreased strength were eliminated, which completely destroyed the ink-moistening properties of rice paper.

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