High-efficiency energy-saving lime kiln

Abstract

The invention provides a high-efficiency energy-saving lime kiln which comprises a furnace body, a hearth, a main grate, side grates, an unloading system and an air supply system, wherein the periphery of the hearth is sequentially provided with a refractory brick layer and a molten iron slag-cement mixture layer, and coated with an iron sheet; the top of the furnace body is provided with a flue; the flue port is communicated with a deduster via a blower through a pipeline; the lower part of the hearth is provided with a discharge hopper; an unloading bin is arranged below the discharge hopper; and the upper part of the main grate is a conical structure. The grates can implement balanced and smooth unloading; the added wall-mounted fire bar increases the mounting height of the main grate bar, thereby increasing the effective calcination area of the hearth; the formed circular discharge channel can implement smoother lime discharge and uniform lime calcination, thereby achieving the goals of energy saving and consumption reduction; and the lime kiln is convenient for maintenance and friendly to the environment.

Description

technical field [0001] The invention belongs to the technical field of kilns, and relates to a high-efficiency and energy-saving vertical lime kiln. Background technique [0002] The lime kiln of the prior art includes a furnace body, an automatic feeding machine, a kiln roof distributing machine, an automatic ash unloading machine at the kiln bottom, and a desulfurization and dust collector connected with the kiln top smoke outlet pipe, and a grate is fixed at the lower part of the furnace. And the side grate, the grate is a square cone structure welded by several steel pipes. When unloading, the lime is automatically unloaded from the ash unloading area on both sides of the grate. The unloading grate of the lime kiln with this structure is When the center of the kiln is prone to "heart-pulling", "partial kiln" and "partial fire", technical problems such as uneven charging and uneven firing quality occur; However, during the calcination process of lime in the furnace, lime...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-efficiency and energy-saving lime kiln to overcome the defects of unloading and uneven calcination in the hearth of the lime kiln in the prior art

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