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Brake control device

A braking control and controller technology, applied in general control systems, control/regulation systems, manufacturing converters, etc., can solve problems such as safety accidents, high-speed fall of oxygen lances, lack of due attention, etc., to achieve The effect of protection

Inactive Publication Date: 2008-06-25
BEIJING ARITIME INTELLIGENT CONTROL
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

In previous engineering projects, the control of the brake of the oxygen lance was often not given due attention. The brake control device of the traditional oxygen lance was only placed in the MCC cabinet as a simple circuit. The brake control mode of the traditional oxygen lance As shown in Figure 1, only one final action contactor (5) is connected between the incoming line switch (1) and the oxygen lance brake (7), so that the switching output point is issued by the transmission system or the output point of the PLC is alone The simple single-point processing method of controlling the opening and closing of the oxygen lance brake to control the rise and fall of the oxygen lance can easily cause the oxygen lance brake to lose control (accidental opening) and cause the oxygen lance to fall at a high speed, resulting in a major safety accident

Method used

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0028] The invention is a brake control device, which mainly includes an oxygen lance motor brake controller, a motor exchange controller and a power control contactor. The motor exchange controller exchanges and controls the motor in the oxygen lance motor brake controller, and the power control contactor provides exchange power for the oxygen lance motor brake controller and the motor exchange controller, and communicates with the oxygen lance electrical mechanism through the 380V power bus The connection between the motion controller and the motor exchange controller. 1# oxygen lance braking controller includes incoming line switch A1, intermediate protection contactor A3, final action contactor A5 and oxygen lance brake A7; 2# oxygen lance braking controller includes incoming line switch B2, intermediate protective contactor B4 , the final action contact...

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Abstract

The present invention discloses a brake control device, consisting of an oxygen lance motor brake controller, a motor commutative controller and a power control contactor, wherein, the oxygen lance motor brake controller comprises an inlet wire switch, an intermediate protection contactor, a final motion contactor and an oxygen lance brake; the intermediate protection contactor and the final motion contactor are respectively controlled by respective power receiving motion contactors; the oxygen lance brake control device of the present invention carries out intermediate protection to a power supply main circuit of an oxygen lance motor brake; an oxygen lance motor brake is controlled through multi-point interlocking, realizing the meticulous protection to a control circuit of the oxygen lance motor brake; the oxygen lance motor commutative controller adopts a commutative control mode to realize the hot standby of an oxygen lance motor transmission system and an oxygen lance motor; power inlet wires inside an oxygen lance brake control cabinet are in a automatic double-power switching mode, which ensures the safety and reliability of oxygen lance systems.

Description

technical field [0001] The invention relates to a braking control device, in particular to a transmission braking control device for an oxygen lance in converter steelmaking. Background technique [0002] Oxygen lance braking control system is one of the indispensable subsystems in converter steelmaking transmission control system, it plays a vital role in the safe lifting of oxygen lance. In previous engineering projects, the control of the brake of the oxygen lance was often not given due attention. The brake control device of the traditional oxygen lance was only placed in the MCC cabinet as a simple circuit. The brake control mode of the traditional oxygen lance As shown in Figure 1, only one final action contactor (5) is connected between the incoming line switch (1) and the oxygen lance brake (7), so that the switching output point is issued by the transmission system or the output point of the PLC is alone The simple single-point processing method of controlling the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21C5/46C21C5/30G05B9/02
CPCY02P10/25
Inventor 孟利明王其瑞崔俊元杨威
Owner BEIJING ARITIME INTELLIGENT CONTROL
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