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Apparatus for cooling solid particulate material

阅读：924发布：2024-02-24

专利汇可以提供Apparatus for cooling solid particulate material专利检索，专利查询，专利分析的服务。并且Apparatus for cooling solid particulate material treated in a kiln comprising a plurality of elongated cylinders attached to the periphery of a rotary kiln. Particulate material is discharged from the kiln into the material inlet of the cooler while cooling air is introduced into the cooler countercurrent to the material flow. The particulate material is uniformly advanced from the material inlet to the outlet by means of a helical plate means which is continuous throughout its length. Annularly offset openings in the plate means deflect the cooling air from its initial flow path in order to increase the rate of heat transfer between the cooling gas and the particulate material, plate means and walls of the cooler. The plate means is easily manufactured and installed. The plate means is designed to prevent clogging by the particulate material. The interior of the cooler and the entire plate means are easily accessible for maintenance or repair by means of access doors near the material inlet and outlet. Spent gas is returned to the kiln to be used as preheated air of combustion.，下面是Apparatus for cooling solid particulate material专利的具体信息内容。

权利要求

1. Apparatus for cooling solid particulate material treated in a rotary kiln including a plurality of elongated cylinders adapted to be connected to the rotary kiln for rotation with said kiln about an axis; each of said cylinders having an inlet at one end for receiving hot solid particulate material discharged from said kiln, an outlet at the other end for discharging cooled solid particulate material from said cylinder; means adapted to be connected to said other end of said cylinder for supplying cooling air to said cylinder whereby the cooling air passes through the cylinder, cools the hot material, is heated by the hot material, and is returned to the kiln as combustion air; and apparatus for improving heat exchange between the solid particulate material and the cooling air and controlling the movement of solid particulate material from said inlet to said outlet comprising: a substantially continuous helical plate means rigidly mounted in said cylinder for increasing the rate of heat exchange by contact between the cooling air, solid particulate material and said plate means and having a first flight near said cylinder outlet, a last flight near said cylinder inlet and a plurality of flights intermediate said first and last flights, each of said flights having at least one opening therein for the passage of cooling air therethrough; said opening in at least the first and last flight having a circular opening therethrough having its center on the longitudinal axis of the cylinder; said opening in the flights intermediate said first and last flight having an opening smaller than said cylinder opening and having its center offset from the center of said cylinder opening, being spaced angularly from the opening in the adjacent flights to thereby define a tortuous air flow through said cylinder; each of said openings being dimensioned to permit sufficient cooling air to pass through the cylinder to cool the material.

2. The apparatus of claim 1 wherein said openings in the intermediate flights are angularly spaced apart to cause all of the gaseous fluid to be deflected from a path parallel to the axis of said cylinder within the distance equivalent to twice the pitch of said helical plate.

3. The apparatus of claim 2 wherein the openings in said intermediate flights include, in a plane perpendicular to the axis of said plate means, a substantially semi-circular shape through which cooling air first passes and substantially a quarter circular section through which cooling air subsequently passes.

4. The apparatus of claim 3 wherein each of said openings have a planar surface which is 90* from the planar surface of the opening in the adjacent flight.

5. The apparatus of claim 4 wherein said continuous helical plate means has an opening which is continuous for the passage of cooling air therethrough.

6. The apparatus of claim 5 wherein the radius of said opening is between approximately one-half to three-fourths the radius of said cylinder.

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Apparatus for cooling solid particulate material

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