SU807012A1

SU807012A1 - Rotary furnace heat exchanger

Info

Publication number: SU807012A1
Application number: SU792737998A
Authority: SU
Inventors: Виталий Алексеевич Чурюмов
Original assignee: Churyumov Vitali A
Priority date: 1979-03-19
Filing date: 1979-03-19
Publication date: 1981-02-23

Description

(54) ЯЧЕЙКОВЫЙ ТЕПЛООБМЕННИК ВРАЩАЮЩЕЙСЯ ПЕЧИ(54) CELL HEAT EXCHANGER FOR ROTATING FURNACE

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Изобретение относитс к технике теплообмена во вращающихс печах и может быть использовано в промышленности строительных материалов.This invention relates to a heat exchange technique in rotary kilns and can be used in the building materials industry.

Известны печи с цепными, звеньевыми и другими типами теплообменников ij .Known furnaces with chain, chain and other types of heat exchangers ij.

Наиболее близким по технической сущности и достигаемому результату к предлагаемому изобретению вл етс чейковый теплообменник вращающейс печи, сацержащий секции параллельных оси печи чеек, образованных .продольными перегородками рД.The closest in technical essence and the achieved result to the proposed invention is the cell heat exchanger of the rotary kiln, the core section of the cells parallel to the kiln axis of the kiln, formed by longitudinal partitions of the rotary kiln.

Материал поступает в секции чеек и перемещаетс в них с подъемом и пересыпанием, что обеспечивает теплообмен между материалом и гор чими газами. The material enters the cell sections and moves into them with lifting and pouring, which provides heat exchange between the material and hot gases.

Недостатком известных теплообменников вл етс их невысока эффективность , так как врем прохождени гор чего газа через секцию теплообменника небольшое.A disadvantage of the known heat exchangers is their low efficiency, since the transit time of the hot gas through the heat exchanger section is small.

Цель изобретени - повышение эффе тивности теплообмена.The purpose of the invention is to increase the efficiency of heat transfer.

Указанна цель достигаетс тем, что чейковый теплообменник вращающейс печи, содержащий секции параллельных оси.печи чеек, образованныхThis goal is achieved in that a cell heat exchanger of a rotary kiln containing sections parallel to the axis.

перегородками, снабжен поперечными перегородками, попеременно заглушающими секции чеек с загрузочного и разгрузочного концов печи, а продольные перегородки в месте размещени поперечных перегородок выполнены с окнами, последовательно соедин ющими чейками между собой попеременно с загрузочного и. разгрузочного концов the partitions are provided with transverse partitions alternately silencing sections of cells from the loading and unloading ends of the furnace, and the longitudinal partitions at the location of the transverse partitions are made with windows sequentially connecting the cells between themselves alternately with the loading and. discharge ends

0 печи.0 ovens.

На фиг.1 показана печь,продольный разрез; - на фиг. 2-4 - разрез А-А на фиг. 1 в трех разных вариантах выполнени чеекv на фиг.5 - печь/ Figure 1 shows a furnace, a longitudinal section; - in fig. 2-4 shows section A-A in FIG. 1 in three different cell designs of FIG. 5 — an oven /

5 с радиальными перегородками, продольный разрез.5 with radial partitions, longitudinal section.

Внутри печи 1 расположены секции параллельных ее оси крайних чеек 2, которые через средние секции 3 соединены друг с другом последовательно.Inside the furnace 1 are located sections parallel to its axis of the extreme cells 2, which through the middle sections 3 are connected to each other in series.

Поперечные перегородки 4 попеременно заглушают чейки 2 и 3 с загрузочного и разгрузочного концов печи 1.The transverse partitions 4 alternately silence the cells 2 and 3 from the loading and unloading ends of the furnace 1.

Claims

The middle cells 3 are connected to the extreme cells 2 by means of holes 5. Inside the middle cells 3 there are inclined blades 6, which form a kind of pipe joint. Their height and slope are determined from the condition of transportation of the entire material. The length of sections 2 and 3 is determined by thermal calculation. The sections of sections 2 and 3 are determined to be equal. To reduce the resistance, the furnace 1 at the site of installation of the heat exchanger can have an increased cross section. The increase in the cross section can be up to 3 times compared with the usual diameter of the furnace (so that the cross section of the cells 2 and 3 is approximately equal to the cross section of the furnace 1 in the usual area). The cells in the furnace 1 can be formed by partitions parallel to each other and the axis of the furnace (figure 1) by cylindrical and radial partitions (figure 3), by radial partitions (figure 4). The number of cells 2 and 3 may be three, and maybe more. The heat exchanger works as follows. The material from the cold end goes into the first cell 2, then through the holes 5 passes into the cell 3, where it is transported by blades b in the opposite direction and then through the hole 5 enters the cell along the material path.

2. Hot gases pass in the opposite direction, with efficient heat exchange. To reduce the NIN of the hydraulic resistance to the passage of gases, the cross section of the furnace 1 at the site of installation of heat exchangers is increased. The use of the proposed heat exchanger increases the efficiency of heat exchange, since the material and hot gases pass in a countercurrent path several times longer than the length of the section of heat exchangers. The invention The cell heat exchanger of a rotary kiln containing sections parallel to the axis of the furnace of cells formed by longitudinal partitions is also so that, in order to increase the efficiency of heat exchange, it is provided with transverse partitions alternately silencing sections of cells from the loading and the discharge ends of the furnace, and the longitudinal partitions at the location of the transverse partitions are made with windows, subsequently. connecting cells between, alternately from the charging and unloading ends of the furnace. Sources of information taken into account during the examination 1. Khodorov E.I. Kiln cement industry. L., Stroyizdat, 1968, p. 59-95. 2 .ABTOjpCKoe USSR certificate in application number 2451192 / 29-33, cl. F 27 B 7/16, 1977.