Vertical Active Lime Calciner

Abstract

The invention relates to a vertical type active lime calcining furnace, belongs to the technical field of industrial furnaces and provides a vertical type active lime calcining furnace which can calcine continuously, has high production efficiency and stable calcining quality and saves production cost and labor cost. The vertical type active lime calcining furnace is characterized in that a funnel-shaped cooling section is arranged at the bottom of a furnace body, an external combustion chamber of the furnace body is in a cylindrical shape, a fuel spraying pipeline is arranged on a lateral wall of the furnace in the tangent direction, the lower end of a kiln body extends into the furnace body, a feeding opening and a negative-pressure induced draft fan are arranged on the kiln body, materials falling from the kiln body can stack in the cooling section to form a repose angle, a material stopping bench in the external combustion chamber is arranged right under the kiln body, a plurality of blanking clearances are formed between the bottom of the material stopping bench and a lateral wall of the cooling section, an outlet in the lower portion of the cooling section is provided with an annular material stopping plate with a blanking hole in the center, materials can fall on the annular material stopping plate from the plurality of blanking clearances to form repose angles, and a plurality of hydraulic discharging devices corresponding to the blanking clearances are arranged at the periphery of the lower portion of the cooling section. The vertical type active lime calcining furnace disclosed by the invention can feed materials automatically and calcine continuously.

Description

technical field [0001] The invention relates to a vertical active lime calciner, which belongs to the technical field of industrial furnaces and kilns, and in particular relates to a lime shaft kiln. Background technique [0002] In the prior art, lime preparation is usually calcined in a horizontal rotary kiln, or intermittently calcined in a single vertical kiln. Every time a furnace of lime is produced, it has to go through the operation steps of kiln installation-calcination-out of the kiln. And when the kiln is installed, the raw materials and coal ash are mixed and filled into the kiln, and the lime is calcined by burning the coal ash. However, this calcination method has high raw material coal consumption, low thermal efficiency, serious energy loss and environmental pollution, requires manual continuous monitoring operations, low production efficiency and high labor costs, and due to unstable operating conditions, over-burning and under-burning occur from time to ti...

AI Technical Summary

Problems solved by technology

However, this calcination method has high raw material coal consumption, low thermal efficiency, serious energy loss and environmental pollution, requires manual continuous monitoring operations, low production efficiency and high labor costs, and due to unstable operating conditions, over-burning and under-burning occur from time to time. , the product quality is difficult to guarantee, and the production cost remains high

Moreover, the existing calcination furnace uses a single fuel, and one kind of calcination furnace is only suitable for a specific fuel, so the fuel cannot be shared.

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