SU1250810A1 - Rotary furnace heat-exchanging apparatus - Google Patents

Description

I

The invention relates to the building materials industry, namely to intrahepatic regenerative heat exchangers used to intensify heat exchange in rotary kilns, for example, in the cement industry in the production of cement clinker, and is an improvement of the known device according to No. 1179065

The aim of the invention is to increase the reliability of the device.

The drawing shows a rotary kiln at the installation site of the heat exchanger device, a cross section.

On the inner surface of the housing of the rotary kiln 1, curved blades 2 are fixed in the form of grates mounted from a series of individual arcuate elements 3, which can be made, for example, of round, hexagonal, oval, or other sections.

The arcuate elements 3 are installed with an axial shift in the planes perpendicular to the longitudinal axis of the furnace 1 with the formation of a slit-like arched vault, i.e. curved grate with slots equal in width to the distance between the arcuate elements 3, i.e. their axial shear. The latter is determined by the size of 3 inserts 4 ,, made in the form of chains, installed during the installation between the arcuate elements. Moving bodies 5 are strung on the arcuate elements so that they can be moved along the length of the arcuate element 3. Moving bodies

Compiled by L.Petrova Editor T.Parfenova Tehred O.Gortvay Corrector M.Sharoshk

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VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

2508JO

5 may completely enclose the arcuate element 3 along its perimeter, i.e. be strung in the form of beads, or they can be placed between the arcuate-5 elements 3 and repeat the shape of the slit with a gap.

The device works as follows.

When the drum of the furnace I is rotated, the blades 2 in the upper position, made in the form of slotted grates consisting of arcuate elements 3 with inserts 4, are actively heated by a high-temperature gas flow, and then, as the furnace 1 rotates. smoothly, without shocks and dusting, immersed in the layer of the processed material, giving it its heat. At the same time, IL-4, made in the form of chains, is laid on the lining, which protects the latter from being erased. The material that falls into the slots formed by the arcuate elements 3 and the liners 4 is cut into separate layers and actively mixed. When the blades 2 are raised to the upper position, the inserts 4, made in the form of chains, sag between the arcuate elements 3, vibrate, while actively cleaning the surface of the arcuate elements 3. The moving bodies 5, in turn, moving along the length of the arcuate elements 3, contribute to an additional cleaning up the latter. In addition, the movable bodies 5 play the role of additional liners designed to prevent deformation of the cracks.

Claims (1)

HEAT EXCHANGE ROTARY FURNACE DEVICE according to ed.St. No. 1179065, characterized in that, in order to increase the reliability of the device, the arcuate elements are equipped with movable bodies strung on them, and the inserts are made in the form of chains. SU „„ 1250810 A 2