A device and method for pelletizing steelmaking sludge

A steelmaking sludge and pelletizing technology, which is applied in the field of pelletizing equipment for steelmaking sludge, equipment for pelletizing directly using steelmaking water-containing sludge, and equipment for pelletizing metallurgical dust sludge, can solve steelmaking sludge Mud cannot be directly used for pelletizing and other problems, so as to save the dehydration process, achieve uniform size, and reduce the amount of use

Active Publication Date: 2019-10-18
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to provide a device and method for pelletizing steelmaking sludge, which mainly solves the technical problem that the existing steelmaking sludge cannot be directly used for pelletizing

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  • A device and method for pelletizing steelmaking sludge

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] refer to figure 1, a device for pelletizing steelmaking sludge, comprising a vibrator 2, a screw feeder 3, a gate valve 4, a powerful mixer 5, a dry silo 6, a motor 7, a wet silo 8, a hopper 10, Mixed material screw feeder 11, screw pressure granulator 12, cutting machine 13, screw blade 14, barrel 15, pressure enhancing blade 16, cylinder forming orifice 17 and reducer 20; the side of the dry material bin 6 A vibrator 2 is fixedly installed, and the discharge port of the dry material bin 6 is connected with the feed port of the conveying pipe of the screw feeder 3, and one end of the conveying shaft of the screw feeder 3 is connected to the motor 7, and the discharge of the screw feeder 3 The port is connected with the feed port of the strong mixer 5 through the gate valve 4; a vibrator is fixedly installed on the side of the wet feed ...

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Abstract

The invention relates to an apparatus and a method for pelletizing steel-making sludge, and mainly solves the technical problem that steel-making sludge in the prior art cannot be directly applied topelletizing. The apparatus for pelletizing steel-making sludge comprises the following components: a vibration machine, a spiral feeder, a gate valve, a strong mixing mill, a dry material stock bin, amotor, a wet material stock bin, a hopper, a spiral feeder for a mixture, a spiral pressure granulator, a cutting machine, spiral impellers, a charging barrel, pressure enhanced blades, a circular column forming pore plate, and a decelerator; a discharge port of the dry material stock bin and a feed port of a spiral feeder conveying pipeline are communicated, and a discharge port of the spiral feeder is communicated with a feed port of the strong mixing mill through the gate valve; a discharge port of the strong mixing mill and a feed port of the hopper are communicated; the cutting machine is fixedly connected to a discharge port of the spiral pressure granulator, and a charging barrel inner wall is internally and fixedly provided with the spiral impellers. The apparatus has low manufacture cost and low pellet manufacturing cost, and direct pelletizing demands of steel-making sludge are satisfied.

Description

technical field [0001] The invention relates to a device for pelletizing metallurgical dust and sludge, in particular to a device and method for pelletizing steelmaking sludge, in particular to a device and method for pelletizing directly using steelmaking water-containing sludge. The method belongs to the field of comprehensive utilization of metallurgical dust. Background technique [0002] About 3%-5% of the crude steel production is produced in the iron and steel production process as metallurgical dust. In addition to beneficial elements such as iron and carbon, these dust sludge also contain elements such as zinc and lead that are unfavorable to blast furnace smelting. The main way to deal with dust sludge at home and abroad is for sintering ingredients. The disadvantage is that it cannot remove the harmful elements zinc and lead in dust sludge. However, more and more iron and steel enterprises use direct reduction technology to remove zinc and other impurities from d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/242C22B1/248
Inventor 张玉才
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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