SU750233A1 - Rotary-furnace heat exchanger - Google Patents

Description

This invention relates to snare exchangers for rotary kilns for the production of cement clinker and can be used in the cement industry. Cell, link and other types of heat exchangers are known. All these heat exchangers are located in the flow of 1 × - 3 gases, which causes them to be intense from the nose, besides there is intense dusting when the materials are poured, therefore, to ensure this production, the furnace will need to supply more raw material, so that with large dust emissions, the use of heat exchangers becomes irrational fll The closest to the technical essence and the achieved result to the described invention is a rotary bale heat exchanger containing evenly spaced In the furnace, the radial blades are made of heat-resistant material 2. When the furnace rotates, the material successively goes inside each cavity formed by the adjacent blades, is poured inside: this blade and then pours out of it along the gap between the furnace and the blade, as well as through the edge of the blade, perpendicular to the furnace axis on the material discharge side. In this case, intense dusting occurs, which is the disadvantage of this heat exchanger. The aim of the invention is to increase the efficiency of heat transfer and decrease. dust formation To reach the target, set the heat exchanger of the rotary kiln to the target; the radiator blades placed evenly over the kiln cross section of the heat-resistant material are provided with fixed blades on both sides of the outer end of each radial blade under the upper part O d 18 O with additional blades; radial by an amount equal to 0.01-0.5 of internal diameter

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furnace, and the second in the course of rotation of the furnace is poured on the first blade 3 to the axis

The complementary blade is made as a curvature furnace 1, then on the second blade 3 from

Neina and its diina is equal to the length of the radial axis of the furnace 1 and finally falls on the blade

blades, 8, which does not allow it to fall off along

FIG. 1 shows a longitudinal section j of the entire blade 3 in the upper position, and

heat exchanger; in fig. 2 - section Ag-Utolko in the position under the layer of material

in fig. one; in fig. 3 — node 1 in FIG. 2. Without dustproof formation. Spilling material

Inside the furnace 1 with lining 2 coaxially with the unloading end of the blade 8, radial blades are located in the top in the 3rd position, too, since the lot of the heat exchanger from heat-resistant material is 10fold 7 shorter than the blade 8 on this side, which do not reach the furnace lining the material from the discharge end of the end. 2, collected by it, will not have time to move the Radial blades 3 of the heat exchanger ° ° of the furnace 1 when it rotates from the discharge side of the material (from the position of the hot end to the position of the hot end) to 5 - Application offer th teploobmenkorpusu furnace 1 by means of struts 4, and will improve its effektivprotivopolozhnoy hand they abut. Dust will reduce the formation, through the supports 5 on the ring 6, freely moving along the axis of the furnace 1 along the lining 2 at their temperature elongation — or the shortening.

On each radial blade 3 of the rotary kiln heat exchanger, on one side, first in the direction of rotation, holding the radial blades out of the heat evenly placed along the securing side of the blade.

7, which are shorter than the radial blade 3 of resistant material, is 0.01-0.5 of the internal diameter of the furnace. However, in order to increase the effect

From the side, the second one in the direction of rotation, heat transfer and reduction of dust, the blades x 3 are fixed under angle formation, it is equipped with painted O blades 8, the length of which on both sides of the outer end of each is equal to the length of the radial blade 3. Loop radial blade and O angle 180 and 7 are shorter than the blades 8 with side-additional blades, and the discharge points so that the material during the rotation of the bale is additional after collecting by the blade 7 while furthering is shorter than the radial one by pouring one blade 3, equal to 0.01-0.5 of the inner diameter, then along the other with further rotation of 35 furnace, and the second in the course of rotation of the furnace, pre-furnace 1 was not initially dumped from the blade of the blade 8 due to axial movement of the post section and its length is equal to the radial length of it in the direction of the material movement in the media. furnace slope 1; Smaller values of shorter blades 7 are taken for the material from the main sources of information,

leutocoupling, i.e. for those that are less taken into account in the examination, the displacements move along the axis of the furnace 1 with 1. A quick reference to the technologist on the rotation of the plant, edited by prof.

The heat exchanger works as follows: Kravchenko N.V. and others. M, stroiizdat,

way .. 1974, from 162-165.

During the rotation of the furnace 1 material in po-2. For the application of the Federal Republic of Germany W 2332626, cl. F 27

The position of the blade is taken by the blade 7, then by 7/16, published. 1975 (prototype).

Hot end

) (OA09NI1 /

end

Claims (1)

Claims A rotary kiln heat exchanger containing radial blades of heat-resistant material uniformly distributed uniformly over the furnace section, characterized in that, in order to increase heat exchange efficiency and reduce dust formation, it is equipped with crosses on both sides of the outer end of each radial blade under the base О ^ζ сА г 180 ° with additional blades, the first additional blade in the direction of rotation of the furnace shorter than the radial by an amount equal to 0.01-0.5 of the internal diameter of the furnace, and the second additional blade in the direction of rotation of the furnace It is made curvilinear and its length is equal to the length of the radial blade.