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Cooling device
| Details |
Inventors: Schuchardt, Kurt; Scholz, Harald; Neuss, Hans W.; Pech, Georg;
Assignee: Hoechst Aktiengesellschaft (DE)
Primary Examiner:
Assistant Examiner:
Attorney, Agent or Firm:
A cooling device for quenching hot, highly corrosive combustible gases containing chlorine and hydrogen chloride comprises an elongated steel vessel having rounded top and bottom end portions, an inlet connection on the top end portion, a plurality of inclined connections in the top end portion to facilitate injection of quenching liquid, a lateral outlet connection in the lower third of the steel vessel for quenched combustion gases and quenching liquid, an axial outlet connection on the bottom end portion of the steel vessel for cleaning purposes and also providing an outlet for the quenching liquid, an acid-resistant hard rubber lining extending over the interior surfaces of the steel vessel and all connections, an acid-resistant ceramic lining on the hard rubber lining, and a refractory lining in the upper portion of the steel vessel on the acid-resistant lining. The innermost surface of the cooling device comprises a lining of further acid-resistant material which forms an interior cylindrical wall of equal diameter throughout. |
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DETAILED DESCRIPTION We claim: 1.
A cooling device for quenching hot, highly corrosive combustion gases containing chlorine and hydrogen chloride comprising an elongated steel vessel having a longitudinal axis, upper and lower portions, and rounded top and bottom end portions, an axial inlet connection means on the top end portion of the steel vessel, a plurality of quench injection connection means inclined with respect to the longitudinal axis of the vessel and disposed at regular intervals around a horizontal zone situated in the top third of the steel vessel for use in injecting quenching liquid into the vessel, a lateral outlet connection means in the lower third of the steel vessel above the rounded bottom end portion providing an outlet for quenched combustion gases and quenching liquid, an axial quench outlet connection means on the bottom end portion of the steel vessel for use in cleaning purposes and as an outlet for quenching liquid, an acid-resistant hard rubber lining extending over the interior surfaces of the steel vessel and all connection means, a first acid-resistant ceramic lining extending over the interior surfaces of the acid-resistant hard rubber lining in the upper steel vessel portion and all connection means, a refractory lining of heat insulating bricks on the interior of the first acid-resistant ceramic lining in the upper portion of the steel vessel, the upper steel vessel portion comprising 40 to 50% of the total height of the vessel and having a diameter larger than the diameter of the lower steel vessel portion, and the heat-insulating bricks in the upper steel vessel portion and the acid-resistant hard rubber lining in the lower steel vessel portion having a second acid-resistant ceramic lining on the interior surfaces thereof, the interior surfaces of the heat-insulating bricks in the upper steel vessel portion and the acid-resistant hard rubber lining in the lower steel vessel portion forming a cylindrical surface of equal diameter throughout the elongated steel vessel
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