High-temperature solid bulk cargo waste heat recovery heat exchanger

Abstract

The invention discloses a high-temperature solid bulk cargo waste heat recovery heat exchanger and belongs to the technical field of heat exchangers. The high-temperature solid bulk cargo waste heat recovery heat exchanger is characterized by comprising a shell (1) and heat exchange elements (2); the end face of the upper portion of the shell (1) is provided with a feed inlet; the end face of thebottom of the shell (1) is provided with a discharge outlet; the multiple sets of evenly distributed parallel heat exchange elements (2) are arranged; the multiple sets of heat exchange elements (2) are transversely fixed in the shell (1), and two end openings of the heat exchange elements (2) penetrate out of the outer side of the shell (1); channels for communication of heat exchange fluid are formed in the heat exchange elements (2); and the section height of longitudinal sections of the heat exchange elements (2) is higher than the section width. The heat exchange elements are installed ina vertical mode, the height of inner cavities of the heat exchange elements is far higher than the width of the inner cavities, high-temperature solid materials flow smoothly in the channels, the problems of bridging and even blocking of the materials in the heat exchanger caused by change of the flowing section are solved effectively, compared with a traditional heat exchange pipe, the heat exchange area of the heat exchange elements of the high-temperature solid bulk cargo waste heat recovery heat exchanger is large, and the significant characteristics of a compact structure and high heat exchange efficiency are achieved.

Description

technical field [0001] The utility model relates to a high-temperature solid bulk waste heat recovery heat exchanger, which belongs to the technical field of heat exchangers. Background technique [0002] There are a large number of high-temperature solid materials in my country's industrial production process, such as blast furnace slag, metallurgical coke, sintered ore, calcined petroleum coke, metallized pellets, boiler ash, semi-coke, lime, etc. The temperature of these solid materials is very high (600~1500°C), which has great value for waste heat recovery and utilization. However, due to the wide variety of high-temperature solid materials and the large differences in material properties (particle size and particle size distribution, specific heat, thermal conductivity, etc.), waste heat recovery and utilization technologies are also different. [0003] At present, the waste heat recovery technology of solid materials at home and abroad mainly includes waste heat powe...

AI Technical Summary

Problems solved by technology

The solid bulk material has poor fluidity. When flowing through each heat exchange tube, due to the reduced flow area, it is easy to cause shed material and even blockage of the heat exchanger.

In order to prevent the heat exchanger from clogging, the distance between the heat exchange tubes is large, resulting in a bulky heat exchanger and a decrease in heat transfer performance

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