SU1064099A1 - Heat exchange of rotating furnace - Google Patents

Abstract

HEAT / ENNIK interlocking furnace, containing sections of longitudinal cells, formed by flat partitions, fixed stitches and body on its forming, characterized in that in order to increase the efficiency of heat exchange, flat partitions are connected at an angle with each other forming the furnace body. (L CZ O5 "about with

Description

The invention relates to heat * heat transfer technology and can be used in the construction materials industry.

A heat exchanger of a rotary kiln is known, comprising sections of longitudinal cells formed by flat partitions fixed to the housing along its generators, the partitions being parallel to each other and to the axis of the kiln.

In such a heat exchanger, the material moves in cells with lifting and pouring, which ensures good contact with hot gases {1].

A disadvantage of the known heat exchanger is the low heat exchange efficiency, since in the vertical position of the partitions all the material is at the bottom and the hot gases passing above are not in contact with it.

The purpose of the invention is to increase the efficiency of heat transfer.

This goal is achieved by the fact that in a heat exchanger of a rotary kiln containing sections of longitudinal cells formed by flat partitions fixed to the housing along its generators, the flat partitions are connected at an angle to each other at the generator body of the furnace.

In such a heat exchanger, in any position, part of the material is located on any partition, since they are. located at an angle to each other, i.e., the situation is eliminated in which all the material lies on the furnace body, in addition, the heat transfer surface increases.

In FIG. 1 shows the location of the partitions emanating from one forming furnace; in FIG. 2 - the same, second option; in FIG. 3 - the same, third option.

Inside the furnace 1, there are longitudinal partitions 2, either coming from one generatrix of the furnace or forming another figure ⁵ . Inside cells 3 formed by partitions 2, chains 4 are hung, The number of sections of cells 3 is determined by thermal calculation. The sections are rotated one relative to the other at an angle of 180-90 ° (if there are two sections, then 180 °, three sections - 120 °, etc.). The section length is also determined by thermal calculation. The number of partitions 2 in section 2-10 (the larger the diameter of the furnace 1, the more partitions 2). The number of chains 4 is determined by thermal calculation, and the length is determined by the distance between the suspension points with a sag of 100-500 mm (the longer the chain 4, the more sag).

To eliminate dusting from unloading on the partitions can be you full notch ²⁰ that can be closed hinged flaps (not shown).

The heat exchanger operates as follows.

Material due to the slope and rotation of the furnace 1 enters the cells 3 and moves in them with the rise and pouring. When the material comes into contact with partitions 2 and chains 4, heat transfer occurs. Heat exchange also occurs due to the contact30 of the material with hot gases, and this contact is large, since there are always ne baffles 2 on which the material is present. Improving the heat transfer efficiency will lead to fuel economy and an increase in the furnace productivity.

Claims (1)

A ROTARY FURNACE HEAT EXCHANGER containing sections of longitudinal cells formed by flat partitions fixed to the body along its generators, characterized in that in order to increase heat exchange efficiency, the flat partitions are connected at an angle to each other at the furnace body forming.