Feeding apparatus of cylinder drier

Abstract

The invention relates to a feeding apparatus of a cylindrical drier. The feeding apparatus is characterized by being arranged between a combustion chamber and a rotary kiln cylinder of the cylindrical drier, being coaxially linked with the combustion chamber and the cylinder, and comprising a tremie pipe, a fixed cylinder and inclined stirring plates; the fixed cylinder is a coniform flaring cylinder and fixed in the combustion chamber; the big end of the fixed cylinder extends into the cylinder in a suspension manner, and the small end of the fixed cylinder is provided with an annular blocking ring; the tremie pipe is vertically arranged on a tangent line of the fixed cylinder from the top down, and the tangential direction is identical with the rotation direction of the cylinder; the inclined stirring plates take arc strip plate shape; one end of the inclined stirring plates is fixed on the inner surface of the cylinder, and the other end extends into the fixed cylinder slantwise and is suspended at the tremie pipe; the number of the inclined stirring plates is four or more, and the inclined stirring plates are evenly arranged on the inner surface of the cylinder in the radial direction. The feeding apparatus can ensure normal continuous feeding of materials into the cylindrical kiln of the cylindrical drier, and has the advantages of no easy adhesion and blocking, no need of cooling water jacket and long service life.

Description

technical field [0001] The invention relates to a drying equipment for chemical smelting, in particular to a feeding device of a cylinder dryer. Background technique [0002] Cylinder dryer is a commonly used drying equipment for chemical smelting. Its main body is a slightly inclined and rotatable cylinder. The wet material is fed from one end of the cylinder, and when passing through the cylinder, it is dried by effective contact with the hot air or the heated wall inside the cylinder, and the dried product is collected from the lower part of the other end. During the drying process, the material moves from the higher end to the lower end under the action of gravity with the help of the rotation of the cylinder. The heat carrier used in the drying process is generally hot air, flue gas or water vapor. If the hot air, flue gas and other heat carriers are in direct contact with the materials, after passing through the dryer, the fine-grained materials carried in the gas ar...

AI Technical Summary

Problems solved by technology

[0005] The feeding of the cylinder dryer is to send the material from one end of the rotating cylindrical kiln body to the kiln body through the fixed combustion chamber. The feeding method in the prior art usually adopts the fixed long inclined feeding pipe feeding method , that is, the feed pipe is inserted at a certain angle from the outside of the combustion chamber through the combustion chamber into the kiln body to suspend the feed, and a long feed pipe has to be used. This feed method has a large feed resistance and is easy to block, and additional fixing devices are required. Since the feed pipe needs to pass through the high-temperature combustion chamber, a cooling water jacket must be installed to prevent the feed pipe from burning out, and a circulating water system must be provided for this purpose

On the other hand, due to the long feeding distance, the material is easy to stick outside the feeding pipe, making cleaning difficult

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