A process for preparing filter material for roller kiln dust removal

Abstract

The invention relates to the technical field of environmental protection, in particular to an operation method of a process device for preparing filter material for dust removal of a roller kiln. Its characteristics are: open the buffer tank, use pregelatinized starch as binder and water as diluent, and the prepared pregelatinized starch solution is sprayed out from the atomizing nozzle designed on the top of the fluidized bed to form mist droplets. The ceramic particles wrapped by gelatinized starch droplets fall spirally along the fluidized bed under the action of gravity. During the falling process, the filter material particles grown by pregelatinized starch droplets wrapped by ceramic particles grow bigger and bigger, and in the The kinetic energy is lost in the collision with the wall of the fluidized bed and the central vertebral tube, and it is separated from the tail gas. It falls into the buffer tank through the bottom of the fluidized bed body. After the filter material particles in the buffer tank fall into the screw extruder, the screw continues to push In the middle, it is gradually squeezed and compacted by the resistance of the orifice plate, and is extruded through the die hole of the orifice plate to form a columnar body with honeycomb channels on the surface.

Description

Technical field [0001] The present invention relates to the field of environmental protection, and more particularly to a process method for preparing a roller kiln to remove dust filter. Background technique [0002] The roller kiln has been widely used in ceramic building materials such as tiles. The roller kiln is a rotating roller as a tunnel kiln, which is continuously fired. The combustion chamber of the roller kiln is generally designed below the roller, the high temperature of the combustion chamber. Flue gas heats sintering on the blank, and the particulate matter in the exhaust flue gas is a gaseous contaminant, and the purification treatment can be intercepted by the particulate filter layer, and the use of clay raw materials is undoubtedly a way that is relatively high. The uniform mixing and extruded forming apparatus required to prepare particulate films is a technical problem that needs to be solved. The Chinese Invention Patent (Patent Application No. 201811222140...

AI Technical Summary

Problems solved by technology

[0003] Prior art 1 adopts the traditional stirring method to achieve uniform mixing, but after mixing clay with a fineness of 800-1200 mesh and water, it is difficult to disperse it evenly with the binder due to the force of hydrogen bonds; prior art 2 Orderly organize the mixing of ultra-fine particles in fluidized bed particles, strengthen the circulation of particles in the bed, improve the contact efficiency of gas-solid two-phase, and improve the fluidization of ultra-fine particles. Because it is suitable for the field of gas-solid two-phase mixing and dispersion technology, for In this technical field, the technical problem of how to discharge ceramic particles after agglomeration cannot be solved.

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