High-temperature slag dry method cooling and pelleting waste heat recycling system and method
A waste heat recovery system and dry cooling technology, applied in the direction of recycling technology, etc., can solve the problems of high temperature equipment loss, high temperature slag viscosity requirements, poor equipment durability, etc., achieve process clean production reduction, strengthen gas convection exchange Heat, to achieve the effect of cooling and solidification
Active Publication Date: 2017-09-22
SHANXI UNIV
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Problems solved by technology
[0008] The purpose of the present invention is to solve the technical problems existing in the existing high-temperature slag processing system and method, which have higher requirements on the viscosity of high-temperature slag, greater loss of high-temperature equipment, and poor durability of equipment, and provide a dry cooling granulation method for high-temperature slag Waste heat recovery system and method
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[0033] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0034] Such as Figure 1-3 As shown, a high-temperature slag dry cooling granulation waste heat recovery system in this embodiment includes: heat preservation tunnel 3, cold slag hopper 1, high-temperature slag hopper 2, water-cooled pipe 4, material blocking plate 5, plow slag Device 6, slag scraper 7, trolley track 11, air inlet pipe 12, cold air chamber 13, heat exchanger 14, dust collector 15, circulating fan 16, ring trolley 17, material storage tank 18, cold air chamber side plate 19 , slag outlet 20, chute 21 and pillar 22; the heat preservation tunnel 3 is an arch ring tunnel formed by a steel structure support frame on the inner layer and an outer layer made of refractory bricks. The lower end is fixed on the ground, and the heat preservation tunnel 3. The top is arched, and several water-cooling pipes 4 are arranged under the bottom of the ar...
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Abstract
The invention relates to a high-temperature slag dry method cooling and pelleting waste heat recycling system and method and aims at solving the technical problems that according to an existing high-temperature slag dry method cooling and pelleting waste heat recycling system and method, the requirement for viscosity of high-temperature slag is high, high-temperature equipment losses are large, and durability of equipment is poor. According to the technical scheme, firstly, cold slag particles are laid on a trolley annularly moving, high-temperature slag flows to the upper surface of a cold slag layer through a fixed slag bucket, the cold slag layer moves along with the trolley, and a film layer is automatically formed on the cold slag layer through the high-temperature slag; a water cooling pipe and a slag ploughing device are arranged above the high-temperature slag layer, and radiation heat exchange and slag breaking are facilitated; cold air penetrates the cold slag layer to exchange heat with the high-temperature slag layer, and high-temperature slag cooling and solidifying are achieved; the solidified slag and high-temperature slag running along with the trolley are automatically shoveled into a heat exchanger through a slag shoveling device fixed above the trolley, secondary heat exchange is conducted in the heat exchanger, cooling and pelleting of high-temperature slag are achieved, and later deep processing of the cooled and pelleted slag is convenient.
Description
technical field [0001] The invention relates to the field of high temperature slag cooling granulation and waste heat recovery processing, in particular to a high temperature slag dry cooling granulation waste heat recovery system and method. Background technique [0002] High-temperature slag is a by-product in the process of high-temperature smelting and thermal power generation, such as high-temperature converter steel slag and blast furnace slag at a temperature of about 1500-1600 °C produced in iron and steel smelting. A common feature of these high-temperature slags is that they contain a large amount of heat energy and inorganic minerals, which can be used as high-quality energy and resource recovery. In addition, the output of these high-temperature slags is huge, which is directly related to the energy saving and emission reduction of industrial enterprises and the efficient utilization of solid waste resources. Normally, 1 ton of steel can produce 100-150kg of hig...
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IPC IPC(8): C21B3/06C21B3/08
CPCC21B3/06C21B3/08Y02W30/50
Inventor 廖洪强程芳琴
Owner SHANXI UNIV
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