RU1770698C - Rotary furnace seal - Google Patents

Abstract

Usage: compaction technique for rarefied rotary drums in the building materials industry. SUMMARY OF THE INVENTION: A seal comprises composite seal rings of segments of sheet material overlapping each other. The clamping device is made in the form of a wavy closed element made of a springy material and placed between the sealing rings. A spring-loaded cable encompasses a wave-like element on which segments of the sealing rings are pivotally fixed. 2 ill.

Description

The invention relates to a technique for sealing rarefied rotating drums and can be used in the building materials industry.

An object of the invention is to increase compaction efficiency.

The drawing shows a General view of the seal, where Fig. 1 shows a longitudinal section thereof; figure 2 is a section aa in figure 1.

The rotary kiln 1 enters into the gap in the stationary chamber 2 with the fixed ring 3, to which the ring 5 is fastened to the bolts 4. A sealing ring consisting of segments 6 of sheet material overlapping each other and pivotally fixed is elastically clamped between the rings 3,5. on a wave-like closed element 7 made of a springy material, which is covered by a flexible element 8 with springs 9. Fig. 2 shows a variant with fastening segments 6 on both sides of the element 7, and in Fig. 3 on one side. The hinges 10 can be made in the form of rivets that enable rotation. The internal dimensions of rings 3 and 5 are made depending on the runout of the axis of the furnace 1 and the inaccuracy of its manufacture from the condition that they do not come into contact with the furnace body 1. The sizes of segments 6 should be chosen along the radius not less than twice the gap between the case 1 and ring 3.5 . The dimensions of the circumferential segments 6 are taken from the calculation of 5-10 °. The outer and inner diameters of the wave-like element 7 are selected from the condition that it is located in the middle of the segments 6, and the thickness of the sheet from which it is made, and the wave sizes are determined by calculation from the condition of ensuring the calculated pressing of the segments to the rings 3.5. The size of the flexible element 8 with springs 9 is determined from the condition that all segments 6 are pressed against the furnace 1. The remaining dimensions are determined structurally and checked for strength and performance.

The seal works as follows.

Segments 6 by means of springs 9 and a flexible element 8 are constantly crimped about the furnace 1, and the element 7 presses them against the ring VJ

2

ABOUT

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Tsam 3.5. The furnace is forgiven inside the sealing ring n; i of the segments 6 (or two rings), the segments 6 on the hinges 10 rotate 1pP NYOOM OSTM AND PUTUALLY APPLY TO PSCH 1.,

The use of gaskets leads to a simplification of the design, lower cost, and a snug fit of segments 6 to furnace 1 and rings 3.5 м from the suction of cold air, which leads to a large amount of fuel.

Claims (1)

Formula and s.o. and Seal rotating p.ch., containing located in the gap between the front, the shell of the stationary cigra and the housing but. and a composite sealing ring of segments made of sheet material with overlapping each other, and an acceptable device, characterized in that, in order to increase the efficiency of the seal, it is equipped with an additional sealing ring of segments, and the pressing device is made in the form of a wave a closed element made of a springy material placed between the sealing rings (rings) and the spring-like element of the spring-loaded cable, the segments being pivotally mounted on the wave nom element.  3 L2 /WITH Pw.2