Efficient energy-saving stable type steel slag pyrolyzer

Abstract

The invention relates to the technical field of comprehensive utilization of steel slag, in particular to an efficient energy-saving stable type steel slag pyrolyzer. The pyrolyzer is provided with a pyrolyzer body, a water-cooling pyrolyzer cover is arranged at the top of the pyrolyzer body, a feeding pipe is arranged in the center of the pyrolyzer cover, a pyrolyzer top charging device is arranged above the pyrolyzer cover, and a discharging device is arranged at the bottom of the pyrolyzer body; a vapor bath-cooling belt, a spray fast-cooling belt and a tank-type hot disintegrating belt are sequentially arranged in the pyrolyzer body from top to bottom, the working linings corresponding to the vapor bath-cooling belt, the mist spray fast-cooling belt and the tank-type hot disintegrating belt are each separated by an upper joist ring and a lower joist ring, an upper cross type bearing beam and a lower cross type bearing beam are arranged above the corresponding upper joist ring and the corresponding lower joist ring respectively, the inner of each cross type bearing beam is of a hollow communication structure, an atomization nozzle is arranged on the bottom face of each cross type bearing beam, and the end heads of the upper cross type bearing beam and the lower cross type bearing beam are in butt joint with water outlet pipes of the water-cooling pyrolyzer cover respectively. The pyrolyzer is clever in design and good in tank-type hot disintegrating effect, and can achieve automation control of the whole process from dumping the molten steel slag into the pyrolyzer to discharging the molten steel slag out and stable transformation and utilization of the sensible heat of the molten steel slag, and is a revolutionary improvement to steel slag processing devices.

Description

technical field [0001] The invention relates to the technical field of steel slag comprehensive utilization, in particular to a high-efficiency, energy-saving and stable steel slag cracking furnace. Background technique [0002] my country's crude steel output has exceeded 800 million tons per year, and about 120kg of steel slag will be produced for every ton of crude steel produced. It is wrapped with about 10% metallic iron, and the sensible heat of each ton of hot steel slag is not less than the calorific value of 60kg of standard coal. The annual production of 800 million tons of crude steel means that about 100 million tons of steel slag are produced, of which about 10 million Tons / year of metal iron needs to be recycled, and the sensible heat of steel slag equivalent to 6 million tons / year of standard coal needs to be recycled. [0003] At present, the treatment methods of hot steel slag in my country mainly include hot stewing method (steam pot method), hot pouring met...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a high-efficiency, energy-saving and stable steel slag cracking furnace for the problem that the structure of the existing steel slag cracking furnace is too simple, and the treatment effect is not ideal when processing hot steel slag.

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