Molding die for ceramic fiber filtering pipe

Abstract

The invention belongs to a production device for ceramic fiber high-temperature gas filtering materials, and particularly relates to a molding die for a ceramic fiber filtering pipe. The molding die comprises a pipe-shaped body formed by buckling two half pipes. One end of the pipe-shaped body is provided with an end cover. The molding die further comprises a locking unit used for detachably locking the two half pipes and the end cover. Small pumping filtration holes are evenly distributed in the two half pipes and the end cover. Filtering cloth is laid on the inner wall of the pipe-shaped body and the inner wall of the end cover. Small pumping filtration holes are evenly distributed in the pipe-shaped body and the end cover, and when the die is filled with size containing ceramic fibers and is arranged in a negative-pressure environment, even suction force is generated on the pipe-shaped body and the end cover, the size in the die is sucked out, meanwhile, the ceramic fibers in the size can be attached to the filtering cloth laid in the die, the size containing ceramic fibers of different specifications is poured into the die multiple times to be subjected to pumping filtration, and a pipe wall with pores gradually changing can be formed.

Description

technical field [0001] The invention belongs to production equipment of ceramic fiber high-temperature gas filter materials, and in particular relates to a molding die of ceramic fiber filter pipes. Background technique [0002] Ceramic tube dust collectors are widely used in metallurgy, building materials, chemical industry, electric power, machinery and other industries to filter dusty tail gas discharged from industrial kilns. Compared with the traditional bag filter, the ceramic tube filter has good high temperature resistance. The ceramic tube dust collector mainly includes a plurality of ceramic fiber tubes arranged side by side in a box. One end of the ceramic fiber tube is sealed and the other end is open. The open end is connected to the induced draft fan. After the exhaust gas enters the box, the gaseous components in it pass through the wall of the ceramic fiber tube and enter the interior of the ceramic fiber tube, and then are discharged from the open end of th...

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Problems solved by technology

However, since the pores of the ceramic fiber tube wall in the prior art are evenly distributed from the inside to the outside, once the dust enters the pores, it is difficult to be blown out in reverse. Therefore, the inventor of this patent has designed a pore A ceramic fiber tube that gradually changes from the inside to the outside. This type of fiber tube needs to be formed by suction filtering layer by layer of ceramic fibers of different specifications, so a set of special molding molds is required.

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