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Metallurgical slag granulation-catalyst preparation and modification integrated device system and method

A metallurgical slag and catalyst technology, applied in the field of metallurgical slag granulation and oxygen carrier preparation and modification integrated device system, can solve the problem of low added value of metallurgical slag recycling products, achieve high mechanical strength, increase economic value, and high-efficiency waste heat The effect of recycling

Pending Publication Date: 2021-07-16
QINGDAO TECHNOLOGICAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention provides a metallurgical slag granulation-catalyst preparation and modification integrated device system and method, which can realize metallurgical slag waste heat recovery and high-value utilization of resources, and solve the problem of current metallurgical slag recovery products Technical issues with low added value

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  • Metallurgical slag granulation-catalyst preparation and modification integrated device system and method

Examples

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Embodiment 1

[0025] In this embodiment, the metallurgical slag is a blast furnace slag, and the decorative agent is iron powder.

[0026] Metallurgical slag granulation - catalyst preparation and modification of the integrated device system mainly consistently connected by the particleification system 1, the catalyst modification system 2, the remaining heat recovery system 3, the separation, and the circulation system 4. Among them, the granulation system 1 consists of a liquid residue inlet 1-1, a particleification device 1-2, a blower 1-3, and an outer cover 1-4; catalyst modification system 2 by a drain cover 2-1, a modifier inlet 2-2 , The modified agent carrier 2-3 and the blower 2-4 are composed of the remainder heat recovery system 3, composed of the remaining heat boiler 3-1, the heat transfer pipe bundle 3-2, and the particle outlet 3-3; separation and circulation system 4 by screening device 4 -1 and circulating feed unit 4-2.

[0027] Metallurgical slag granulation - catalyst prepa...

Embodiment 2

[0038] In this embodiment, metallurgical slag is copper slag, and the modification agent is a CaO powder.

[0039] Metallurgical slag granulation - catalyst preparation and modified integrated device system and method mainly include the following steps:

[0040] (1) Metallurgical slag particle

[0041] 1250 ~ 1350 ° C Molten state copper residue enters the particleification system 1 by liquid residue inlet 1-1, in the particleification system 1, liquid residue transitions into a metallurgical slag initial particle A of 0.5 mm to 3 mm by granulation apparatus 1-2. The initial particles of metallurgical slag were 1100 ° C (± 50 ° C). The outer surface of metallurgical slag initial particles A reached an initial solidification state, and the center is still molten liquid state. In the granulation system 1, the introducer blower 1-3 leads the heated air in the particleification system 1 to the outer cover 1-4. The initial particles A of metallurgical slag entered the catalyst modifica...

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Abstract

The invention discloses a metallurgical slag granulation-catalyst preparation and modification integrated device system and method, the system is mainly composed of four parts of a granulation system, a catalyst modification system, a waste heat recovery system and a separation and circulation system, and the working process of the system is composed of four steps of metallurgical slag granulation, catalyst modification, particle waste heat recovery and screening and recovery. According to the process, catalyst modification powder is directly adhered by utilizing the secondary coagulation characteristic of the surfaces of granulated metallurgical slag particles so that the catalyst particles with high additional value are prepared. The system not only realizes efficient recovery of waste heat of metallurgical slag particles, but also greatly improves the additional value of metallurgical slag products.

Description

Technical field [0001] The present invention belongs to the field of metallurgical slag curing treatment, and in particular, the present invention relates to metallurgical slag granulation synergistic oxygen carrier preparation and modified integrated device system and method. Background technique [0002] my country is the world's steel industry and the colored metallurgical industrial production. The annual metallurgical industry has produced billions of tons of metallurgical slag, such as high slag, steel slag, copper residue, lead lapse, etc., is an important high solid waste in the industrial field. These metallurgical slag released temperature at 1200 ° C or higher, with high waste heat recovery value. At present, the method of processing of metallurgical slag is more mature in the metallurgical plant is water quenching or a cooling method. The water quenching will consume a lot of water and produce a large amount of pollutant gas and sewage; the caster method is low. Furth...

Claims

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Application Information

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IPC IPC(8): B01J23/745B01J23/78B01J35/02B01J37/00F22B1/04
CPCB01J23/745B01J23/78B01J37/0063F22B1/04B01J35/50
Inventor 左宗良罗思义齐传家董鑫江谢皓杰王金梦杨千慧任冬冬张敬奎于庆波
Owner QINGDAO TECHNOLOGICAL UNIVERSITY
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