TH2667A - Processes and equipment for cooling the pellets. - Google Patents

Abstract

Invention involves a process And equipment for cooling the bulk object Where the inside of the leak-proof upright cooler is initially cooled with a transverse flow. And the second step with refrigerant reflux The most efficient cooling is achieved by separating the refrigerant gas between the transmitted currents. And sent in a reverse direction in such a way that the refrigerant gas that flows through the outlet has the highest temperature.

Claims (7)

1. Continuous process for cooling the pellets from temperature 700 degrees - 1000 degrees Celsius to less than 100 degrees Celsius in upright cooling vessels. This includes (a) causing the pellet material to flow from the processing unit. Enters a conical layer of mostly uniform thickness (b) through the first part of the refrigerant gas which is not oxidized, flows horizontally through that step From the inside to the outside of the cone (c) as the pellet material flows below the vessel. Pass the second non-oxidizing refrigerant gas upward through the object. The direction of the flow of the object (d) eliminates the non-oxidizing gas. Out of the container (E) Remove the cooled pellets from the container at a point above the cone. (F) the flow of the gas, and the second In a way that is inversely proportional to each other in response to the temperature of the gases escaping from the container. To maintain the maximum temperature of the gases being exported from such containers and (g) control of the first and second gas flows in the volume of the cooled pellet matter. Which was sent out of the container 2. Procedure according to claim 1, where the outgoing gas from the container is cleaned, pressure increased and returned to the container. 3. The process according to claim 1, where the pellet material is moved through the container by gravitational force at a predetermined speed at the rate at which the cooled object is removed from the lower end of the vessel. 4. Process according to claim 1, where such non-oxidizing gas Mostly nitrogen gas carbon dioxide Or a mixture of these gases 5. Process according to claim 1 where the grain size of the pellet is between 4-25 mm, the proportion of the object with the grain size less than 4 mm will not exceed 10-15%. 6. Procedures according to claim 1, where a large 25 mm pellet is separated before the pellet material enters the container. 7. Equipment for cooling bulk objects This includes (a) upright cylindrical containers that are heat- and leak-proof. (B) the export part, located at the bottom of the container, for controlling the flow of material through the container (c) the conical conductive surface located In the middle of the container With the end at the center line of the inlet pipe (D) The first refrigerant gas inlet, which is connected to the bottom of the water surface. (E) the gas supply centered within the funnel of the vessel, with the gas supply having a number of pipes facing downward. And which have a common center and have a control disc inside such pipes To regulate the gas flow (f) the second refrigerant gas inlet pipe to which the gas supply is said; (g) the preliminary gas pipeline connected to the first gas pipeline and that section. (h) Top gas output section Of the container and (i) the temperature-sensitive part Within the flap, which is connected to the flap, to adjust the flap in response to temperature changes in the flue.