Double-hearth vertical kiln with cooling supporting stand columns

Abstract

The invention relates to a double-hearth vertical kiln with cooling supporting stand columns. The double-hearth vertical kiln comprises two kiln hearths which are connected through a connecting channel, wherein an annular channel is arranged in each kiln hearth; an annular channel inner drum is arranged in each annular channel; the bottom part of each kiln hearth is provided with a supporting ringbeam; each supporting ring beam has a hollow structure; the upper part of each supporting ring beam is provided with a cooling supporting stand column; the interior of each cooling supporting stand column is hollow; each cooling supporting stand column is connected with a supporting ring beam and an annular channel inner drum; and the interiors of a supporting ring beam located at the bottom partof each kiln hearth, a cooling supporting stand column and an annular channel inner drum are in mutual communication. The double-hearth vertical kiln with the cooling supporting stand columns provided by the invention has the following advantages: the annular channels of the double-hearth vertical kiln with a circular cross section are simple and reliable in structure; meanwhile, the problems ofcooling of an internal structure and supporting of the weight of inner drums are solved; the annular channels are simple and clear in structure and accumulate little dust; and production inspection, repairing and maintenance are less, so more benefits are created for enterprises.

Description

technical field [0001] The invention relates to the field of block material roasting kilns, and more specifically relates to a double-chamber vertical kiln with cooling support columns. Background technique [0002] The two kiln chambers of the double-chamber vertical kiln are equipped with connecting channels for the circulation of process gas; each kiln chamber of the circular cross-section double-chamber vertical kiln is also equipped with an annular channel as a collector of process gas to communicate with the connecting channel, so that The process gas leaves the combustion kiln chamber and is evenly distributed along the entire circumference of the annular channel without partial flow, thus ensuring uniform calcination of the lime on the kiln section. [0003] At present, there are mainly two structural forms of the annular channel of the double-chamber shaft kiln with circular cross-section: the support structure of refractory masonry corbels, and the structure of han...

AI Technical Summary

Problems solved by technology

1) The supporting structure of the corbels is made of a large number of special-shaped bricks and refractory materials. The number of special-shaped bricks is complex and the structure is prone to failures such as falling off of refractory materials.

Moreover, the shape of the annular channel is complicated, and the volume accumulates dust, which causes the channel to be blocked, and needs to be stopped and cleaned regularly, which is inconvenient for production and operation.

2) All the weight of the suspension cylinder structure is suspended by the upper steel structure, and the internal structure is complex and expensive, making it difficult to manufacture and difficult to guarantee the quality

And its suspension cylinder needs to bear a huge weight in a high temperature environment, which is prone to failure

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