SU1000700A1

SU1000700A1 - Unit for heat treating loose materials in suspended state

Info

Publication number: SU1000700A1
Application number: SU813310007A
Authority: SU
Inventors: Валерий Николаевич Карпов; Ашот Завенович Саакян; Геннадий Викторович Бутусов; Геннадий Васильевич Бойцов; Владимир Трофимович Зарубайло; Виль Гумерович Еникеев; Евгений Александрович Чуманов
Original assignee: Ленинградский Ордена Трудового Красного Знамени Сельскохозяйственный Институт
Priority date: 1981-06-26
Filing date: 1981-06-26
Publication date: 1983-02-28

Description

(54) УСТАНОВКА ДЛЯ ТЕРМООБРАБОТКИ СЫПУЧИХ МАТЕРИАЛОВ ВО ВЗВЕШЕННОМ СОСТОЯНИИ(54) INSTALLATION FOR HEAT TREATMENT OF BULK MATERIALS IN THE WEIGHED CONDITION

Изобретение относитс к сушильной технике и может быть использовано в сельскохоз йственном производстве дл су1ики и дезинсекции зерновых, бобовых культур и других сыпучих материалов .The invention relates to a drying technique and can be used in agricultural production for the cultivation and disinsection of cereals, legumes, and other bulk materials.

Известна установка дл сушки сыпучих материалов, преимущественно шлифмикропорошков , содержаща камеру с размещенным внутри ленточным транспортером , обогреваемым с двух сторон инфракрасными лучами, причем в камере через промежуточный бункер-питатель предвключен подсушйватель материала , выполненный в виде наклонно расположенной вращающейс кварцевой трубы, заключенной в охлаждаем1лй кожух с внутренним отражающим экраном и безынерционными .инфракрасными излучател ми t.13.A known installation for drying bulk materials, mainly grinding micropowders, contains a chamber with an internal conveyor belt, heated from both sides with infrared rays, and a material-drying device made in the form of an inclined rotating quartz tube enclosed in a cooling case is included in the chamber through an intermediate hopper with internal reflecting screen and inertial-free infrared emitters t.13.

Недостатками.данной установки вл ютс больша металлоемкость, сложность обслуживани и низка надежность из-за наличи транспортирующих, средств.The disadvantages of this installation are high metal intensity, maintenance complexity and low reliability due to the presence of transporting means.

Наиболее близкой к предлагаемой по технической сущности и достигаемому результату вл етс установка дл термообработки сыпучих материалов во взвешенном состо нии, содержаща расшир ющуюс кверху рабочую KaMepi, снабженную инфракрасными излучател ми 2.Closest to the proposed technical essence and the achieved result is a plant for heat treatment of bulk materials in a suspended state, containing an upwardly expanding working KaMepi equipped with infrared radiators 2.

Недостатком данной установки вл етс неудовлетворительна интенсивность термообработки материала, перегрев материала.The disadvantage of this setup is the inadequate intensity of heat treatment of the material, overheating of the material.

Цель изобретени - интенсификаци термообработки материала.The purpose of the invention is to intensify the heat treatment of the material.

10ten

Указанна цель достигаетс тем, что в установке дл термообработки сыпучих материалов во взвешенном состо нии , содержащей расшир ющуюс кверху рабочую камеру, снабженную ин15 фракрасными излучател ми, камера выполнена много русной, каждый ее рус .состоит из сочлененных между собой цилиндра и усеченного конуса, причем цилиндр вьшолнен из материала пропус20 кающего инфракрасные лучи, а излучат;ели расположены вокруг него.This goal is achieved by the fact that in an installation for heat treatment of bulk materials in a suspended state, containing an upwardly expanding working chamber equipped with infrared emitters, the chamber is made multi-colored, each Russian consists of a cylinder and a truncated cone jointed to each other the cylinder is made of a material that passes through infrared rays, and it radiates; spruces are located around it.

На фиг.1 схематично изображена предлагаема установка, общий вид ; на фнг.2 - разрез А-А на фиг.1; на In Fig.1 schematically shows the proposed installation, General view; on fng.2 - section aa in figure 1; on

25 фиг.З - русна рабоча камера.25 fig.Z - Russian working chamber.

Claims

The ycvaHOBKa for heat treatment of bulk materials in the blistering state includes an upwardly expanding working chamber 1, made multi-colored, each efe Rus consists of a cylinder 2 whose diameter increases along the height of the chamber around which the infrared emitters 3 are installed, and a truncated cone 4 and 1 2 are made of a material that transmits infrared rays (for example, from quartz glass). The installation comprises a fan with an adjustable electric drive 5, a cyclone 6, a loading device 7, a coupling housing 8, an air intake with a distribution grid 9, a container 10 for the material being processed and a container 11 for the processed material. The installation works as follows. Depending on the type of material being processed, its initial and necessary final humidity, the mode of operation of the fan is chosen so that the air velocity in the upper and lower parts of the working chamber 1 is higher than the soaring speed of the treated particles (dried and entering the irradiation chamber). The particles of the material entering the loading device 7 are carried into the working chamber 1 where they are weighed, since the air flow rate is chosen so that it is equal to the speed of water and not dry The material is heated in cylinders 2, and cooling in cones 4, since there are no infrared emitters in these areas. Thus, during the processing of the material in the irradiation chamber (Fig. 2), the material is alternately heated and cooled. As the moisture content of particles decreases as a result of heat treatment with radiant energy and air entrainment, the soaring speed of the particles becomes less than the speed of air, and they are gradually transported upward along the chamber, and wet particles arrive in their place. Particles suspended in the working chamber at the same level of material are constantly mixed in both vertical and horizontal planes due to a slightly higher air velocity in the center of the working chamber compared to the air velocity along the walls of the chamber. Since the porosity of the material inside the working chamber is 0.75-0.95, the particles of the material suspended at the same level are irradiated with a uniform dose. The particles of the processed material, which have a soaring speed lower than the air velocity in the upper part of the cone-shaped working chamber, are carried away through the connecting shell 8 into the cyclone 6, where they are cooled and fed into the container 11. The proposed installation will allow to intensify the heat treatment of the material. The invention of the installation for heat treatment of bulk materials in a suspended state, containing an upwardly expanding working chamber equipped with infrared emitters, is necessary because, in order to intensify the heat treatment of the material, the chamber is multi-colored, each of its Rus consists of a cylinder and a truncated cone articulated between them, the cylinder being made of a material that transmits infrared rays, and the radiators are located around it. Sources of information taken into account during the examination 1. USSR author's certificate No. 369357, cl. F 26 V 3/30, 1971.

2.Ginzburg A.S. Fundamentals of the theory and technology of drying food. M., Pischeva industrial., 1973, 7. 315-316.