Off-line debugging apparatus and off-line debugging method of blast-furnace gas glasses valve control loop

Abstract

The invention discloses an off-line debugging apparatus and an off-line debugging method of a blast-furnace gas glasses valve control loop. The debugging apparatus includes eight single-pole switches and two three-phase phase-sequence meters, wherein the eight single-pole switches are respectively used for an opening position of a plate moving apparatus, an closed position of the plate moving apparatus, light-on control of the plate moving apparatus, light-off control of the plate moving apparatus, clamping control of a loosening / clamping apparatus, loosening control of the loosening / clamping apparatus, clamping light control of the loosening / clamping apparatus and loosening light control of the loosening / clamping apparatus; and the two three-phase phase-sequence meters are respectively connected to a plate moving motor and a main loop power supply terminal of a loosening / clamping motor. The debugging method includes the steps of: successively closing corresponding terminals, determining whether the loosening / clamping apparatus and the plate moving apparatus are in correct status or not and whether the three-phase phase-sequence meters are in normal phase sequences or status or not, and performing troubleshooting. In the method, complex debugging work is simplified into programmed operations, so that debugging is carried out quickly and reliably and time required in re-blowing of the blast furnace is reduced, thus creating production benefit.

Description

technical field [0001] The invention relates to an off-line debugging device and method for a valve control loop, in particular to an off-line debugging device and method for a blast furnace gas eye valve control loop, and belongs to the technical field. Background technique [0002] The blast furnace gas eye valve is an important lifeblood of blast furnace production. A large number of gas eye valves are used in the dust removal system of the blast furnace. One of the main tasks of each blast furnace repair is to replace the eye valve corroded by gas and blocked by blast furnace gas dust. Due to Most of the gas valves are on a platform of tens of meters and are huge in size, so the work of dismantling and installing is very cumbersome and takes a lot of time, while the blast furnace repair usually takes dozens of hours, removing the old eye valves and hoisting After the installation of the new eye valve, the wiring and debugging of the valve are generally carried out in a s...

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Problems solved by technology

[0002] The blast furnace gas eye valve is an important lifeblood of blast furnace production. A large number of gas eye valves are used in the dust removal system of the blast furnace. One of the main tasks of each blast furnace repair is to replace the eye valve corroded by gas and blocked by blast furnace gas dust. Due to Most of the gas valves are on a platform of tens of meters and are huge in size, so the work of dismantling and installing is very cumbersome and takes a lot of time, while the blast furnace repair usually takes dozens of hours, removing the old eye valves and hoisting After the installation of the new eye valve, the wiring and debugging of the valve are generally carried out in a short time. Due to the harsh environment of the eye valve, the failure rate of the control circuit is high, and many control circuits have short circuits, open circuits, and short seals. In a relatively short period of time It is unrealistic to debug several eye valves, so when the blast furnace is re-aired, the re-airing is often delayed because the eye valve cannot operate, which affects the production of the blast furnace

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