A laboratory roasting pellet cooler and its application method

Abstract

The invention discloses a laboratory roasted pellet cooling machine and an application method thereof. The cooling machine comprises a support frame, a pellet cooling platform, a fan, a high-temperature side heat-conducting ceramic, a high-temperature side metal plate, a p-type semiconductor, an n-type semiconductor, a first low-temperature side metal plate, a second low-temperature side metal plate, a low-temperature side heat-conducting ceramic and a power generation device lead; and components are connected to form a temperature difference power generation device, heat in a roasting furnaceafter roasting is converted into electric energy, and the fan is supplied with power. The laboratory roasted pellet cooling machine does not need an external power supply, can provide electric energyfor the fan by utilizing the heat after roasting of the roasting furnace, accelerates the cooling of a roasted pellet, enables the cooling of the laboratory pellet to be closer to actual production,enables the preparation of the laboratory pellet to reflect the on-site production condition, accelerates the experimental progress, and saves time.

Description

technical field [0001] The invention relates to the technical field of iron ore pellet equipment, in particular to a laboratory-used roasting pellet cooler and an application method thereof. Background technique [0002] The pelletizing process is one of the main agglomeration methods in the ferrous metallurgical industry, and plays an important role in promoting the development of the iron and steel industry. The pelletizing method is a method in which fine-grained materials are rolled into balls on special pelletizing equipment under the condition of adding water, and then roasted and consolidated. The obtained product is pelletized ore, which is spherical in shape, uniform in particle size, high in mechanical strength, good in reducing performance, and can be stored and transported for a long time. Roasting and consolidation is a commonly used method for producing pellets at present. Roasting can make pellets have sufficient mechanical strength and good metallurgical pro...

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Problems solved by technology

[0004] The problem with this test method is that when the amount of roasted pellets is large and the roasting temperature is high (generally around 1200°C), the time required for the natural cooling of the pellets taken out is longer (generally 1-2h). When the test design needs to rely on the test results, it will take a long time for the test; and, in actual production, the pellets are usually cooled by ring cooler blast, and the cooling time is short, and the difference between the laboratory cooling time and the actual production cooling time Larger, the laboratory operation cannot simulate the actual production well, resulting in inaccurate test results; in addition, the heat emitted by the roaster, the residual heat after the furnace is closed, and the high-temperature heat of the pellets have not been effectively utilized

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