APPARATUS FOR PRODUCING WATER-ABSORBENT RESIN

摘要

In an apparatus for producing the water-absorbent resin, gas heated by the polymerization heat accompanied by a polymerization reaction in a reactor main body flows through a first pipe into a heat exchanging structure, and a cooled fluid obtained by the cooling flows through a second pipe into the reactor main body. In the apparatus, a first pipe temperature adjusting portion adjusts a temperature of the first pipe to fall within a predetermined temperature range, and a polymerization reactor temperature adjusting portion adjusts a temperature of an upper portion of the reactor main body to fall within a predetermined temperature range.

主权项

1. An apparatus for producing a water-absorbent resin, comprising:
a polymerization reactor in which a water-absorbent resin is produced by polymerization reaction on a water soluble ethylenically unsaturated monomer in a liquid medium, the polymerization reactor including
a reactor main body in which the water soluble ethylenically unsaturated monomer and the liquid medium is contained and an upper portion of which is left for a gaseous phase portion, anda gas discharging portion which is connected to the reactor main body and discharges gas of the gaseous phase portion from the reactor main body; a first channel portion having a first channel which is connected to the gas discharging portion and through which the gas discharged from the reactor main body by the gas discharging portion flows; a first channel portion temperature adjusting portion which adjusts a temperature of the first channel portion to fall within a predetermined temperature range in which the gas flowing through the first channel of the first channel portion is not condensed; a cooler which cools the gas, the cooler including
a cooler main body which is connected to the first channel portion, into which the gas flowing through the first channel of the first channel portion flows, and which cools inflow gas, anda cooled fluid discharging portion which is connected to the cooler main body and discharges a cooled fluid obtained by cooling the inflow gas in the cooler main body, from the cooler main body; and a second channel portion which is connected to the cooled fluid discharging portion and has a second channel through which the cooled fluid discharged from the cooler main body by the cooled fluid discharging portion flows toward the reactor main body.