High-temperature solid bulk cargo waste heat recovery device

Abstract

The invention discloses a high-temperature solid bulk cargo waste heat recovery device which comprises a high-temperature solid bulk cargo heat exchange system (1), a water heat exchange system (2), a high-temperature working medium heat exchange system (3) and an electric control cabinet (4). The left end and the right end of a screw propulsion cylinder (1-3-1) in the high-temperature solid bulk cargo heat exchange system (1) are connected with a water tank water outlet pipe (2-1-3) and a high-pressure water pump water inlet pipe (2-11) in the water heat exchange system (2) through a left moving seal device (2-2) and a right moving seal device (2-3) respectively, and a heat exchange bin (1-2) in the high-temperature solid bulk cargo heat exchange system (1) is welded with a high-temperature working medium box (3-3) in the high-temperature working medium heat exchange system (3). The high-temperature solid bulk cargo waste heat recovery device has the advantages that the heat exchange bin (1-2) is completely soaked in a high-temperature working medium (3-4), heat exchange effect is maximized, a screw propulsion device (1-3) is arranged in the heat exchange bin (1-2), low-temperature water flows in the screw propulsion device (1-3), so that high-temperature solid bulk cargoes exchange heat with two walls, the heating surface of a finned pipe (2-7) is large, feed hopper light pipes (2-4) are heated by the high-temperature solid bulk cargoes with the temperature of about 900 DEG C, and the output quality of heat energy is improved.

Description

technical field [0001] The technical solution of the present invention belongs to the field of heat exchange equipment, specifically, it belongs to the field of heat exchange equipment with condensation and evaporation of intermediate heat transfer medium in the closed pipe leading into or passing through the channel wall, according to the International Patent Classification Law, belongs to F28D15 / 02. Background technique [0002] my country produces over 100 million tons of blast furnace slag annually, carrying sensible heat equivalent to more than 7 million tons of standard coal. More than 90% of the blast furnace slag is produced by water quenching method, which is used as cement raw material. There is no sensible heat recovery function of slag, and the sensible heat is basically lost. my country's patent ZL201220196368.6 "High Temperature Solid Bulk Material Waste Heat Heat Pipe Recovery System", which consists of bulk material conveying system, left inner heat pipe, rig...

AI Technical Summary

Problems solved by technology

Its shortcoming is that the medium that transports heat outward is air, and the heat density is too low, so it is only suitable for small waste heat recovery such as coal-fired boiler slag.

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