Sintering and mixing method

A technology of sintering mixing and bonding materials, which is applied in the field of metallurgy, and can solve problems such as electrical failure, loss, and time-consuming equipment maintenance or replacement of the sintering mixing system.

Pending Publication Date: 2021-11-30
CHONGQING IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, during the mixing production process, electrical failures often occur in the sintering mixing system, which requires a lot of time and effort to repair or replace equipment, seriously affecting production efficiency and cost loss

Method used

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0027] When the sintering mixing system is in operation, the sintering mixing cylinder rotates, causing dust to fly on site, and the dust will inevitably be sucked into the wound motor, and since the rotor of the wound motor is made of copper wire, As a result, the rotor part of the motor is prone to material jamming, and the carbon brush of the motor cannot operate normally and flexibly, resulting in the failure of the wound motor, which leads to the failure of the entire sintering and mixing system to operate normally.

[0028] If the site of the sintering mixing system is cleaned regularly, although it can solve the problem of flying dust and reduce the probability of motor fai...

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Abstract

The invention provides a sintering and mixing method which is applied to a sintering and mixing system, the sintering and mixing system comprises a sintering and mixing cylinder, a squirrel-cage motor and a frequency converter, the squirrel-cage motor is in driving connection with the sintering and mixing cylinder, and the frequency converter is electrically connected with the squirrel-cage motor and used for driving the squirrel-cage motor in a variable-frequency mode. The sintering mixing method comprises the steps that the sintering mixing system comprises a starting mode and an operation mode, and when the sintering mixing system is in the starting mode, the output frequency of the frequency converter is X. When the sintering mixing system is in an operation mode, the output frequency of the frequency converter is Y, and the ratio of X to Y is 5: 3.5-4. When the sintering mixing system is in a starting mode, the ratio of the power of the frequency converter to the power of the squirrel-cage motor is larger than or equal to 1.25. According to the sintering mixing method, the probability of system faults can be reduced while normal operation of the sintering mixing system is guaranteed, and the energy consumption of the whole system can be reduced.

Description

technical field [0001] The present application relates to the technical field of metallurgy, in particular to a method for sintering mixed materials. Background technique [0002] Sintering is an important process in iron and steel smelting. Its purpose is to prepare and sinter iron ore and some materials, such as lime, into pellets to provide artificial rich ore with a certain particle size and metallurgical properties for subsequent smelting. When carrying out the sintering process, it is necessary to mix the materials first. The material mixing is realized by the sintering and mixing system. The sintering and mixing system includes the motor and the sintering mixing cylinder. The raw materials for sintering, such as iron ore and materials, need to be put into the sintering mixing cylinder. In the cylinder, the motor drives the sintering mixing cylinder to run, and the raw materials in the sintering mixing cylinder are fully mixed. [0003] In order to improve the efficie...

Claims

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Application Information

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IPC IPC(8): H02P27/04H02P25/02H02P1/16C22B1/16
CPCH02P27/04H02P25/02H02P1/16C22B1/16H02P2207/01
Inventor 赵伟史忠其童毅冯言熊国川杨招岳洪琴
Owner CHONGQING IRON & STEEL CO LTD
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