SU614307A1

SU614307A1 - Dryer for ceramic articles

Info

Publication number: SU614307A1
Application number: SU762424102A
Authority: SU
Inventors: Иван Семенович Кашкаев; Ефим Шулимович Шейнман
Priority date: 1976-11-29
Filing date: 1976-11-29
Publication date: 1978-07-05

Description

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Изобретение относитс к сушильной тех4ике , в частности к конвективной сушке керамики , н может быть использовано в производстве глин ного кирпича, керамических камней, дренажных труб н т. ц.The invention relates to drying technology, in particular, to convective drying of ceramics, and can be used in the production of clay bricks, ceramic stones, drainage pipes and so forth.

Известна сушилка дл керамических изделий , содержаща разделенные стенками камеры и систему каналов с клапанами дл подвода и отвода теплоносител ij.Known dryer for ceramic products, containing separated by the walls of the chamber and the system of channels with valves for the supply and removal of coolant ij.

При этом два боковых канала служат дл подвода теплоносител , и один средний - дл отвода теплоносител . Одни клапаны, размещенньге на концах камер, служат дл регулировани подвода теплоносител , а другие - дл регулировани отвода теплоносител .In this case, two lateral channels serve for the supply of heat-transfer agent, and one medium channel - for removal of heat-transfer agent. Some valves, located at the ends of the chambers, serve to regulate the flow of coolant, and others - to regulate the removal of coolant.

Эта сушилка вл етс наиболее близкой к изобретению по технической сущности достигаемому результату.This dryer is the closest to the invention in the technical essence of the achieved result.

Однако известна сушилка обладает следующими недостатками: неравномерность сушки изделий по сечению и длине камер, перетекание частк свежего теплоносител в канал дл отвода теплоносител , высокие удельные расходы тепла и длительные срокиHowever, the known dryer has the following disadvantages: uneven drying of products over the cross section and length of the chambers, overflow of parts of fresh coolant into the channel for removal of the coolant, high specific heat consumption and long periods

сушки при значительной трещиноватости высущенных изделий.drying with significant fracturing of the dried products.

Цель изобретени - улучшение качество продукции и повышение 9кономи чности сушки .The purpose of the invention is to improve product quality and increase drying efficiency.

Поставленна цель достигаетс тем, что смежные камеры попарно соединены между собой выполненными по длине верхней части стенок проходами, в которых установивI ны источники тепла, а клапаны снабжены переключающими исполнительными механизмами .The goal is achieved by the fact that adjacent chambers are interconnected in pairs by passages made along the length of the upper part of the walls, in which the heat sources are installed, and the valves are equipped with switching actuators.

На фиг. 1 схематично изображена описываема сушилка,поперечный разрез; на фиг. 2 - каналы дл подвода и отвода теплоносител и клапанов, вид в плане; на фиг. 3 - схема открытых и закрытых клапанов при подводе теплоносител в нечетные камеры и отводе его через четные камеры.FIG. 1 shows a schematic representation of the dryer being described, a transverse section; in fig. 2 - channels for supplying and discharging coolant and valves, plan view; in fig. 3 is a diagram of open and closed valves when coolant is supplied to odd chambers and discharged through even chambers.

Claims

Adjacent chambers 1 and 2 are pairwise interconnected by passages 3, rimmed in the upper part; walls 4 separating adjacent chambers 1 and 2. In aisles 3, sources of tag 5 are installed, for example steam registers. In the lower part of the chambers, 1 n 2, channels 6 are located for potsvoan and heat carrier discharge into chambers 1 and 2. Valves 7 and 8 are placed in the ducts for supplying heat carrier to channels 6 and heat carrier drain them, R the fan 9 is installed for supplying heat carrier and a fan 10 for discharging coolant. The dryer works as follows. The fan 9 supplies the coolant through the valves 7 to the channels 6 of the chamber 1, and of them into the chambers 1. The coolant rises, washes the ceramic products, draining them. At the same time, it partially cools. Through the passages 3 the coolant enters the Kemer

2. In doing so, it is heated by heat sources, such as steam registers. Descend, the coolant dries the ceramic products in chambers 2, and through channels 6 and valves 8 is sucked out by a fan 10. Valves 7 and 8 are equipped with switching mechanisms (not shown). After in the chambers 1 the coolant moves upwards, and in the chambers 2 - downwards, the valves 7 and 8 switch and the valves 7 close, and the valves 8 - open and the coolant moves upwards in the chamber 2, and downwards in the chambers 1. The valve switching is carried out in the following program: during the warm-up period of products for 5-10 hours from the moment of loading the chambers, the switching intervals are 5-2 O mich, during the period of shrink drying - 5 - 30 min. DETAILED DESCRIPTION OF THE INVENTION Dryer for cephamic products comprising chamber separated by walls and a system of channels with valves for supplying and discharging coolant, characterized in that, in order to improve product quality and increase drying efficiency, adjacent chambers are arranged in pairs along the length of the upper part walls by passages in which heat sources are installed, and valves are supplied with switching actuators. Sources of information taken into account in the examination: 1. Nokhrat, K. A. Drying and firing in the ceramic industry, M., stroiizdat, 1962, p. 145.

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