A system and method for recovering sensible heat from molten solid matter

A sensible heat recovery and solid matter technology, applied in the field of waste heat recovery, can solve the problems of high-grade heat energy loss of high-temperature slag, small equipment investment, fresh water consumption, etc., achieve significant economic and social benefits, ensure continuity, and wide application market effect

Active Publication Date: 2015-08-12
陕西擎华新能源技术有限公司
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Problems solved by technology

[0003] For molten slag, the treatment method commonly used in China at this stage is the water quenching method, which is to directly cool and solidify high-temperature slag with water. This method has simple process and low equipment investment, but it causes high-grade heat energy loss of high-temperature slag, which cannot Recycling, and will also produce a large amount of toxic and harmful gases such as sulfur dioxide and nitrogen oxides, and at the same time need to consume a large amount of new water for replenishment

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  • A system and method for recovering sensible heat from molten solid matter

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.

[0034] see figure 1 , a sensible heat recovery system for molten solids, comprising a pre-storage tank 1, a waste heat boiler 2, an air-cooled granulator 3 and a solid cooling device 4;

[0035] The inner wall of the pre-storage tank 1 is provided with a superheated surface, and a working fluid is passed into the superheated surface, and the molten solid enters from the inlet of the pre-storage tank 1, overheats the working fluid in the superheated surface, and then enters the air-cooled gas through the outlet. Granulator 3;

[0036] The air-cooled granulator 3 is provided with a cooling air inlet, and the molten solid is granulated in the air-cooled granulator 3 and exchanges heat with the cooling air. The cooling air is heated into hot air, and the hot air enters the waste heat from the ho...

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Abstract

The invention discloses a system and a method for recovering sensible heat of molten solids. The system comprises a pre-storage tank, an afterheat boiler, an air cooling granulator and solid cooling equipment. Available energy in a slag can be effectively recovered, namely the heat in the slag is recovered through the pre-storage tank, the air cooling granulator and the solid cooling equipment respectively; the sensible heat of which the temperature is about 1600 DEG C can be recovered, and the sensible heat of the solids in other industries also can be recovered. The system is mainly applied to the industries such as steel, electric power and the like, has a broad application market, and also can obtain significant economic benefits and social benefits.

Description

technical field [0001] The invention belongs to the technical field of waste heat recovery, and relates to a sensible heat recovery system and method for molten solid matter. Background technique [0002] At present, in the face of the tense situation of the world's energy situation, domestic and foreign countries have been researching alternative new energy sources, and at the same time, energy recovery and utilization are also carried out in the process of energy conservation and emission reduction. In 2012, the State Council officially issued the "Twelfth Five-Year Plan for Energy Conservation and Emission Reduction", which specifically clarified key projects for energy conservation and emission reduction during the "Twelfth Five-Year Plan", and the utilization of waste heat and pressure was highlighted in energy-saving renovation projects. [0003] For molten slag, the treatment method commonly used in China at this stage is the water quenching method, which is to direct...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C21B3/08F27D17/00
CPCY02P10/25
Inventor 程代京郭建程伯鸿王恒
Owner 陕西擎华新能源技术有限公司
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