High-chamber annular ventilation vertical preheater

Abstract

The invention discloses a high-chamber annular ventilation vertical preheater. The preheater is reasonable in structure and neat in layout, a ventilation system is uniform in exhaust, energy sources can be fully utilized, and the productivity of the preheater can be improved. The preheater comprises a shell and an upper preheater cover plate, wherein a discharging sliding bucket is arranged at a lower outlet of the shell. The preheater is characterized in that a plurality of annularly distributed preheating chamber cavities are formed in the inner periphery of the shell; the preheating chamber cavities are 3000 to 4500mm high; hydraulic pushing systems are symmetrically arranged at positions corresponding to the discharging sliding bucket on the shell; discharging pipes communicated with the preheating chamber cavities are arranged on the upper preheater cover plate; preheater support upright posts are uniformly distributed around the shell; a hoisting brick frame is arranged on the inner middle part of the shell; refractory hoisting bricks are arranged on the lower surface of the hoisting brick frame; a ventilation duct bracket is arranged on the preheater support upright posts; an annular ventilation duct is arranged on the ventilation duct bracket; the preheating chamber cavities are communicated with the annular ventilation duct through ventilation duct joints and preheating chamber air outlet pipes connected with the ventilation duct joints; air outlet pipe adjusting valves are arranged on the preheating chamber air outlet pipes.

Description

technical field [0001] The invention belongs to the preheater of the rotary kiln system of the active lime production line in the field of active lime production, in particular to a high-chamber circular ventilation vertical preheater. Background technique [0002] The application of active lime is very common, such as in the metallurgical industry as a steelmaking slagging agent, in the paper industry as a bleaching agent. In many industries such as metallurgy, nonferrous metals, papermaking, and chemical industry, rotary kiln systems are widely used to produce active lime and other products. [0003] The preheater of the rotary kiln system of the existing active lime production line has unbalanced equipment structure and volume matching, unreasonable layout, and generally high exhaust gas outlet temperature; the material preheating time is not enough, and the material cannot be decomposed thoroughly, so it cannot be fully utilized energy issues. Contents of the inventio...

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Problems solved by technology

[0003] The preheater of the rotary kiln system of the existing active lime production line has unbalanced equipment structure and volume matching, unreasonable layout, and generally high exhaust gas outlet temperature; the material preheating time is not enough, and the material cannot be decomposed thoroughly, so it cannot be fully utilized Energy and other issues

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