SU1381315A1 - Rotating furnace seal - Google Patents

Abstract

The invention relates to a technique for compacting rotary kilns and can be used in the building materials industry. The purpose of the invention is to increase the efficiency of compaction. Graphite blocks 5 with parallel ends of a composite sealing ring are installed in the guides of the fixed chamber and surround the furnace body. Between the graphite blocks 5 placed spring-loaded sector 9 of wear-resistant material. When the furnace rotates while it is beating, the seal is kept tight as a result of the constant pressing of the graphite blocks 5 and sectors 9 onto the furnace body. Graphite blocks 5 lubricate the furnace body and, with this lubricant, slide sector 9 without wear. 2 Il.

Description

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The invention relates to a technique for compacting rotary kilns and can be used in the manufacture of building materials.

The purpose of the invention is to increase the efficiency of compaction.

FIG. I presents the seal longitudinal section; in fig. 2 is a view A of FIG. .

The sealing of the rotary kiln contains a composite sealing ring 4 of the spring-loaded graphite blocks 5 with parallel ends mounted in the guides I of the fixed chamber 2 and enclosing the furnace body 3. The guides 1 are attached to the ring 6, which is fastened with brackets 7 to the ring 8 mounted on the fixed chamber 2. The blocks 5 are installed with a gap relative to each other, wedged spring sectors 9 made of wear-resistant material are installed between them. The springs 10 and 11 of the graphite blocks 5 and sectors 9 rest on brackets (not shown).

The diameter of rings 6 and 8 is 1.05-1.2 in diameter of the furnace and is dependent on the beating of the furnace.

The radius of graphite blocks 5 is 2-6 times larger than the gap between the furnace body 3 and rings 6 and 8 to ensure long-term operation as the furnace body wears from friction, and the execution of free ends of graphite blocks 5 in parallel radial direction . The number of blocks 5 around the circumference is chosen constructively, taking into account the diameter of the furnace. The dimensions of blocks 5 and sectors 9 are equal to each other along the radius.

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The size of sectors 9 around the circumference of the furnace is chosen as small as possible due to the minimum wear of the furnace and these sectors. The angle of the wedge of sectors 9 is determined by the number of blocks 5 around the circumference; the remaining dimensions of the parts are determined constructively and tested for durability and operability. In addition, the characteristics of the springs 10 and 11 are determined from the condition that the blocks 5 and sectors 9 are in constant contact with the furnace, regardless of the furnace's beating and wear.

The compaction of the rotary kiln operates as follows.

During the rotation of the furnace, despite the beating and the ellipticity of the body, the blocks 5 and the sector 9 all the time are pressed against the body 3 of the furnace, ensuring a tight seal. Graphite blocks 5 lubricate the furnace body and this lubricant slides sector 9 of wear-resistant material without wear.

Claims (1)

The proposed seal design improves the seal efficiency, eliminating cold air inflow, which leads to fuel savings. Invention Formula Seal of the rotary kiln containing a composite sealing ring mounted in the guides of the fixed chamber and enclosing the kiln body of graphite blocks with parallel ends, placed with a gap relative to each other, characterized in that it is fitted between the blocks wedge spring-loaded sectors of wear-resistant - material. fpuS.1