VAPOR PRESSURE CONTROL DEVICE IN THE COAL DRYING SYSTEM USING OVERHEATED STEAM

摘要

The present invention relates to a system for drying coal using reheat steam, and more particularly, to an apparatus for enhancing drying efficiency by adjusting reheat steam to be injected to coal input and transferred onto a transfer device at predetermined pressure in a multi-stage dryer drying the coal by using reheat steam and in the apparatus for adjusting steam pressure in a system for drying coal using reheat steam, a steam supply pipe supplying the reheat steam generated by a reheater is connected to one side of each of the first steam chamber, the second steam chamber, the third steam chamber, and the fourth steam chamber and a first steam distribution perforated plate with a plurality of steam injection holes is coupled to and installed in the inner upper part of each of the first steam chamber, the second steam chamber, the third steam chamber, and the fourth steam chamber to inject the reheat steam at uniform pressure through the first steam injection holes.