SU1571384A1 - Rotary furnace packing - Google Patents

Abstract

The invention relates to a sealing technique for rotating drums operating under vacuum and can be used in the building materials industry. The purpose of the invention is to increase the reliability of compaction. For this purpose, a cylindrical split spring shell 6 is located outside the rotating sealing ring 2 with the ring 3 mounted on the body 1 of the rotating furnace. The shell is pressed against the fixed ring 4 by means of a pressure ring 12 with leads 13, which are made around its circumference. The shell 6 is made with leads 9 at the end and bearings 10 on them. Leads 9 can be made with the support legs 11, located flush with the end face of the shell 6. 2 Cp. f-ly, 2 ill.

Description

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FIELD: vacuuming flotation technology.

These drums can be used in the industry of construction materials.

The purpose of the invention is to increase the reliability of compaction of a rotary kiln.

In fig-. 1 shows the rotary kiln seal, general view; Fig.2 section aa in Fig.1.

The rotary kiln seal contains a rotatable sealing ring 2 with shell 3 fixed on the furnace body 1, a fixed ring 4 made of antifriction material (for example, cast iron or graphite type) is fixed to a fixed chamber 5 "Ts: the edge is spring-loaded1 on the shell 6, which through brackets 7 The strut is made of springs 8 and is made of thin flexible materials. It is located outside the rotating seal of the ring 2 and the shell 3 and is made with drivers 9 at the end, which can have bearings 30, the leads 9 are split The shells can be made with supporting legs flush with the butt of the shell 6 0 Pressing the split gulls 6 against the fixed ring 4 is made in the vice pressure flange 2 with the leads 13 around the circumference, which enter between the brackets 14, which prevents the clamping ring from turning ,

The shell 6 with its end face and legs 11 rests on the ring 4. In this case, the clamping ring 2 is connected to the four-way camera by means of springs} 59 fixed on the bracket 14, pressing the pressure ring 12 to the split shell 6 through bearings 10,

In order to provide greater freedom of angular movement of the split casing 6 relative to the shell 3, the sealing ring 16 made of antifriction material about the diameters of the shell 3 and the fixed camera 5 can be fixed to approximately the same size for reasons of exclusion when the furnace axis beats its contact with the fixed ring 4, The width of the ring 4 along the radius is chosen from the condition that the paws 11 are no longer removed from it during any runout of the furnace casing. The diameter of the shell 6 is chosen from the condition that it is guaranteed to move. STI m0

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relatively shell 3, taking into account the temperature difference.

In the case of the shell 6, the overlapping of its overlap is chosen constructively. The dimensions of the ring 16 and its location are determined from the conditions for providing a given angular mobility of the shell 6 relative to the shell 3 without contacting them when the furnace axis is beating. The dimensions of the ring 12 are determined from the condition of excluding the contact of its shell 6 at any beating of the axis of the furnace while eliminating the descent of the bearings 10. The distance between the shell 3 and the fixed ring 4 is determined from the condition of excluding their contact at the temperature of the furnace body and its axial movements.

The length of the split shell 6 is determined from the condition of excluding its descent from the shell 3 with the maximum distance between the shell 3 and the fixed ring 4 taking into account their wear while ensuring the necessary sealing. In the presence of the ring 16, the length of the shell 6 must always ensure support for this ring.

The remaining dimensions are determined constructively and tested for strength and operability, and the springs 8 and 1b5 are also checked for a given pressing force.

The compaction of the rotary kiln operates as follows.

The shell 6 by means of springs 15 through the pressure ring 12, bearings 10 and drivers 9 by paws 11 and its end face is pressed against the stationary ring 4. The presence of the legs 11 prevents the ring 4 from being strongly worn by the end of the split shell 6.

The pressure ring 12 is fixed by means of the leads 13 against turning while providing the necessary mobility between the paired brackets 14. The springs 8 provide a zero gap between the shell 6 and the shell 3, and the effect of the band brake will not affect the rotation of the furnace split shell 6 (and not zhtke.

In the proposed design, the seal of the rotary kiln increases reliability due to the absence of rigid connection between the split shell 6 and

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Claims (3)

1. Seal of the rotary kiln, containing a fixed ring fixed on its housing, a fixed ring fixed to the fixed chamber, and a cylindrical split spring-loaded split shell freely installed between sealing rings with a pressing mechanism, characterized in that /four Editor A, Rezin Compiled by S. Prkova Tehred L. Serdyukova Proofreader N. Korol Order 1503 Circulation 508 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 46 sealing, the shell is located outside the rotating sealing ring and is made with drivers on the turn, and the pressure mechanism is in the form of a pressure ring connected to the stationary chamber with the drivers around the circumference. 2. Compaction according to claim 1, about t l and Of course, the leads of the split shell are made with bearings. 3. Compaction according to claims 1 and 2, characterized in that the leads of the rim shells are made with supporting legs flush with the end of the shell. Fie.2 Subscription