Steel slag dry processing device and method

A dry processing and slag smelting technology, applied in the direction of recycling technology and process efficiency improvement, can solve the problems of resource waste, energy waste, environmental pollution, etc., and achieve the effect of effective utilization and saving of water resources

Inactive Publication Date: 2010-09-15
张登山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The deficiencies of the existing iron and steel slag treatment methods: the first is that the large amount of heat contained in the slag is not effectively utilized when it is discharged, resulting in energy waste
Second, the bl

Method used

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  • Steel slag dry processing device and method
  • Steel slag dry processing device and method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0013] Example one:

[0014] The processing device of the present invention includes a slag pool 1 equipped with an air atomizer 2, a gravity dust collector 3, a heat exchange device 4, a bag filter 5, an induced draft fan 6, an air compressor 7, and the air compressor 7 is connected to air mist Carburizer 2 and gravity dust collector 3, air atomizer 2 is connected to gravity dust collector 3, gravity dust collector 3 is connected to heat exchange device 4, heat exchange device 4 is connected to bag filter 5, bag filter 5 is connected to induced draft fan 6, and One output port of the fan 6 is connected to the gravity dust collector 3 through a valve, and the other output port is discharged through a valve and a chimney.

[0015] The heat exchange device 4 is a heat pipe heat exchanger, and the heat exchange device 4 is arranged on the top of the gravity dust collector 5 and communicates with the gravity dust collector 5.

[0016] Using the above processing device, the processing me...

Example Embodiment

[0018] Embodiment 2: The heat exchange device of this embodiment adopts a waste heat boiler, and the separated high-temperature gas passes through the heat exchange device and the temperature drops below 120°C. The atomized air passes through the bag filter for dust removal and is drawn by the induced draft fan. , Others are the same as the first embodiment.

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Abstract

The invention relates to a steel slag dry processing device comprising slag pond provided with an air atomizer, a gravitational precipitator, a heat-exchange device, a bag-type dust remover, a draught fan and an air compressor, wherein the air atomizer is connected with the gravitational precipitator connected with the heat-exchange device, the heat-exchange device is connected with the bag-type dust remover, the bag-type dust remover is connected with the draught fan and the air compressor is connected with the air atomizer and the gravitational precipitator. The invention has the advantages that: 1, the slag is cooled by air atomization, generated high-temperature gas can be recycled; 2, the steel slag after atomization cool can be directly used for sintering burdening, thereby realizing the effective utilization of the steel slag; and 3, the blast furnace slag does not need to be flushed with water, thereby saving a great amount of water resource.

Description

Technical field: [0001] The invention belongs to a method for processing steel slag. Background technique: [0002] Iron and steel slag is an important by-product of the iron and steel smelting process, which is divided into ironmaking blast furnace slag and steelmaking slag. At present, most of the blast furnace slag is made into water-washed slag by high-pressure water quenching, which is used as raw material for cement plants; a small part is slowly cooled and crushed into compact slag blocks of appropriate size to replace natural gravel. The main components of steelmaking slag are calcium oxide, magnesium oxide, and iron oxide, which can be used as auxiliary raw materials for ironmaking blast furnaces. At present, most of the steelmaking slag is slowly cooled and treated as waste landfills. [0003] The shortcomings of the existing iron and steel slag treatment methods: First, the large amount of heat contained in the slag is not effectively used when it is discharged, resulti...

Claims

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Application Information

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IPC IPC(8): C21B3/06
CPCY02P10/20Y02W30/50
Inventor 张登山
Owner 张登山
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