SU534622A1

SU534622A1 - The method of drying fibrous materials

Info

Publication number: SU534622A1
Application number: SU2191267A
Authority: SU
Inventors: Олег Александрович Кремнев; Владимир Рудольфович Боровский; Леонид Николаевич Грабов; Дмитрий Алексеевич Любезников
Priority date: 1975-11-21
Filing date: 1975-11-21
Publication date: 1976-11-05

Description

1one

Изобретение относитс к сушильной технике и в частности к сушке льнотресты.The invention relates to a drying technique and in particular to flax drying.

Известны способы сушки волокнистых материалов, преимущественно льнотресты, путем перемещени сло высушиваемогоKnown methods of drying fibrous materials, mainly flax seed, by moving a layer of dried

материала по зонам, продувки его по всей площади зон во взаимно противоположных направлени х и дополнительного ступенчатого соплового обдува 1 j. При осуществлении этого способа ограничена толщина сло , что приводит к замедлению процесса сушки и большой неравномерности по влажности в высушенном материале.material through zones, blowing it through the entire area of the zones in mutually opposite directions and an additional stepped nozzle blowing 1 j. When implementing this method, the thickness of the layer is limited, which leads to a slowdown of the drying process and a large unevenness in humidity in the dried material.

Цель изобретени - интенсифицировать процесс сушки,The purpose of the invention is to intensify the drying process,

Это достигаетс тем, что сопловой обдув ведут перед продувкой материала отработавшим в зонах теплоносителем с температурой , повышающейс по ходу материала от 95 до 12О С. В процессе продувки осуществл ют радиационный подогрев материла , а изменение направлени продувки ведут после достижени материалом температуры 80-90°С и влажности 40-60%.This is achieved by the fact that the nozzle blowing is carried out before the material is blown out with heat carrier exhaust in the zones with a temperature increasing along the material from 95 to 12 ° C. C and humidity 40-60%.

На фиг. 1 - схематически изображена установка дл сушки льнотресты, работающа по предлагаемому способу; на фиг. 2разрез по А-А на фиг. 1.FIG. 1 is a schematic representation of a plant for drying flax seed, working according to the proposed method; in fig. 2A-A in FIG. one.

Установка состоит из одного горизонталкого транспортера 1, двух коробов соплового обдува 2 и сушильных зон 3, часть зон 3 отделена от остальной части перегородкой 4, Установка имеет два коридора 5,6. В коридоре 5 установлены калориферы 7 и осевые вентил торы 8, В коридоре 6 установлен транспортер 1 и радиационные подогреватели 9.The installation consists of one horizontal conveyor 1, two nozzle blowing boxes 2 and drying zones 3, part of zones 3 is separated from the rest by a partition 4, the Installation has two corridors 5.6. In the corridor 5, the heaters 7 and axial fans 8 are installed, in the corridor 6 the conveyor 1 and the radiation heaters 9 are installed.

Теплоносителем в установке вл етс воздух, подогревае ч ый калориферами 7 и перемещаемый по рециркул ционному контуру внутри зон осезы,мк веЕ-1тил тэрами 8.The heat carrier in the installation is air heated by the heaters 7 and moved along the recirculation circuit within the zone of the furnace, i.e. BE-1 type by units of 8.

Claims

Mochentsova flax with a moisture content of 170-180% enters conveyor 1 and is first blown by air drawn by fan 1O, for example, from zone to partition 4 with a temperature of 95 ° C and moisture content 1OO g / kg dry air, and then air drawn by fan 11 from the zone after partition 4 with a temperature of 120 C and a moisture content of 75 g / kg of dry air. After the nozzle blowing, the heated and dried flax enters the zones 3, where it is blown from the bottom up by the coolant and simultaneously heated by the preheaters 9 installed under the conveyor 1 in all the zones. After heating flax to a temperature of 8 ° -90 ° C and reducing its humidity to 40-60%, the direction of blowing is reversed. Formula of the invention A method of drying fibrous materials, mainly flax, by moving the layer of dried material through zones, blowing it over the whole area opposite directions and an additional stepped nozzle blowing, characterized in that, in order to intensify the drying process, the nozzle blowing is carried out before blowing the material, spent in the blowing zones A tree with a temperature increasing in the course of the material from 95 to 120 C, and during the purging process, the material is heated by radiation, and the direction of the purge is changed after the material reaches a temperature of 80-90 C and a humidity of 40-60%. Sources of information taken into account during the examination: 1. Copyright certificate № 267487 F26 В 3/06 1968

8 FIG. f 6