Feeding chamber necking adjusting device

Abstract

The invention relates to a feeding chamber necking adjusting device. The feeding chamber necking adjusting device comprises a base, the left side and the right side of the base are each provided with a plurality of necking which are sequentially formed from front to back, each necking is provided with a valve body, each valve body comprises a linear driving mechanism, a valve sleeve, a valve seat and a valve plate, the valve sleeves are obliquely and fixedly inserted into the necking in a sealed mode, the valve seats are obliquely sealed and fixed at openings in the outer ends of the valve sleeves, the valve plates are movably arranged in the valve sleeves and the valve seats, first cooling rings which are annularly distributed are further fixed in openings in the inner ends of the valve sleeves, and the inner ends of the valve plates are matched with the inner walls of the first cooling rings. By means of mutual cooperation of the valve plates and the necking, the size of the necking area is adjusted, then the spouting effect in a decomposing furnace is guaranteed, air, materials and coal in the decomposing furnace are fully mixed, the heat exchange efficiency of the materials is improved, the retention time of the materials is prolonged, the material decomposing rate is increased, and meanwhile, crust at the necking part is effectively avoided, so that great convenience is brought to use.

Description

technical field [0001] The invention relates to a device for regulating the necking of a feeding chamber. Background technique [0002] In the cement kiln preheater equipment, the position near the calciner side of the feeding chamber is provided with a constriction. The size of the constriction determines the opening degree of the tertiary air, which affects the heat consumption, resistance and output of the entire cement firing system. They all play a key role; in order to prevent material collapse, the existing shrinkage area is too small and the size is fixed and cannot be adjusted. The smaller shrinkage area will affect the eruption effect in the calciner, resulting in wind , materials, and coal cannot be fully mixed, which restricts the heat exchange efficiency of materials, shortens the residence time of materials, reduces the decomposition rate of materials, and makes the shrinkage easy to form skin, which is extremely inconvenient to use and needs further improvemen...

AI Technical Summary

Problems solved by technology

[0002] In the cement kiln preheater equipment, there are constrictions on the feeding chamber close to the side of the calciner. The size of the constriction determines the opening of the tertiary air, which affects the heat consumption, resistance and output of the entire cement firing system. They all play a key role; in order to prevent material collapse, the existing shrinkage area is too small and the size is fix...

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