Generating system using surface residual heat of dry cement rotary kiln

Abstract

The invention discloses a generating set which can rotate along with a cement rotary kiln and generate power by using residual heat of a dry cement rotary kiln. In the generating set, residual heat on the surface of the rotary kiln is collected, heat is transferred to the hot end of a semiconductor temperature difference generating module, a radiator is arranged at the cold end of the temperature difference generating module, a temperature difference is generated between the hot end and the cold end of the temperature difference generating module, and electromotive force is generated under the action of Seebeck effect, output through a slip ring or an electric brush or applied to an electrical appliance load which needs direct current power supply, so that power generation by using surface residual heat of the cement rotary kiln is realized. A system comprises components such as the temperature difference generating module, a heat collector, the radiator, the slip ring, the electric brush and the like. A generating component is fixed with the cement rotary kiln and rotates along with the cement rotary kiln, so that the originally wasted surface residual heat of the rotary kiln is directly converted into electric energy and a low-grade efficient residual heat utilization mode is realized. The system has the advantages of energy conservation, simple structure and long service life, is firm, durable and clean, and is free from leakage and noise, and the like.

Description

technical field [0001] The invention relates to a low-temperature waste heat utilization technology of a dry-process cement production line rotary kiln, more specifically, it is a thermoelectric conversion method and device for utilizing the surface waste heat of a dry-process cement rotary kiln, and is a new technology aimed at generating electricity by utilizing industrial waste heat Energy development and utilization technology field. Background technique [0002] Half of the world's cement output comes from China. Cement manufacturing is a typical industry with high energy consumption, high material consumption, and high pollution. During the dry process cement production process, the surface of the rotary kiln emits a large amount of waste heat continuously all year round, and the surface temperature is usually low. Below 150°C, in order to ensure that the kiln body is not damaged due to overheating, it needs to be cooled down. The waste heat on the surface of the cemen...

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Problems solved by technology

[0004] The invention overcomes the shortcomings of the existing power generation technology, provides a method and device that can rotate together with the cement rotary kiln, and utilizes the waste heat on the surface of the dry process cement rotary kiln to generate electricity, and solves the problem of

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