Safety indicating device for molten iron swinging chute

Abstract

The utility model relates to a molten iron swing chute safety indication device, which belongs to the technical field of blast furnace safety indication and comprises a power supply main switch F01, a swing chute indication circuit, a swing chute brake indication circuit and a power supply indication circuit. The swing chute indicating circuit, the swing chute braking indicating circuit and the power supply indicating circuit are all connected to an external 220V power supply through a power supply main switch F01; and after the swing chute brake indicating circuit is completely electrified, the swing chute indicating circuit and the power supply indicating circuit can be electrified. Whether the swing chute is powered off or not can be judged through the power indicator lamp, so that timely discovery and timely repair reporting are facilitated, and safety accidents are avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of blast furnace safety indication, and in particular relates to a safety indication device for a molten iron swing chute. Background Art

[0002] The swing chute of the blast furnace is responsible for diverting molten iron to the molten iron tanks on both sides during normal iron tapping. Once the swing chute is powered off, it will directly cause the swing chute to stop working, and the molten iron will continue to flow into the same molten iron tank without being able to switch, causing the molten iron to fall to the ground, posing a major safety hazard. The power supply of the existing swing chute is operated in the on-site operation box. There are only left and right swing indications and related operation buttons inside the on-site operation box, but no power indication. Personnel cannot directly judge whether the swing chute has a sudden power outage, which is a shortcoming of the existing technology. Utility Model Content

[0003] The purpose of the utility model is to provide a safety indication device for a molten iron swing chute to solve the problems in the prior art, in which the staff cannot promptly know that the swing chute has been powered off due to the lack of power indication, resulting in the swing chute being unable to swing left and right, thereby causing molten iron to continuously flow into the same molten iron tank, posing a major safety hazard.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A molten iron swing chute safety indication device comprises a main power switch F01, a swing chute indication circuit, a swing chute brake indication circuit and a power indication circuit. The swing chute indication circuit, the swing chute brake indication circuit and the power indication circuit are all connected to an external 220V power supply through the main power switch F01; the swing chute indication circuit and the power indication circuit can only be energized after the swing chute brake indication circuit is fully energized.

[0006] A further improvement of the technical solution is that the swing chute brake indication circuit includes an intermediate circuit, a brake start circuit and a brake start indication circuit, and the intermediate circuit, the brake start circuit and the brake start indication circuit can only be powered on and work in sequence;

[0007] The intermediate circuit includes a start button S01, an emergency stop button S02, an intermediate relay K01 and an intermediate relay K02. The first end of the start button S01 is connected to an external 220V power supply through the main power switch F01, and the second end of the start button S01 is connected to the first end of the intermediate relay K01 coil and the first end of the intermediate relay K02 coil through the emergency stop button S02. The second end of the intermediate relay K01 coil and the second end of the intermediate relay K02 coil are both grounded.

[0008] A further improvement of the technical solution is that the brake start circuit includes a brake pre-start switch Q01, an emergency stop button S03, a brake pre-start relay K03, a brake contactor KM01 and a brake pre-start indicator light PW01;

[0009] The first end of the brake pre-start switch Q01 is connected to the external 220V power supply through the main power switch F01, and the second end of the brake pre-start switch Q01 is connected to the first end of the brake pre-start relay K03 coil, the first end of the intermediate relay K01 normally open switch, the first end of the intermediate relay K02 normally open switch and the first end of the brake pre-start indicator light PW01 through the emergency stop button S03, the second end of the brake pre-start relay K03 coil and the second end of the brake pre-start indicator light PW01 are both grounded, the second end of the intermediate relay K01 normally open switch and the second end of the intermediate relay K02 normally open switch are both connected to the first end of the brake contactor KM01 coil, and the second end of the brake contactor KM01 coil is grounded.

[0010] Further improvements of the present technical solution include that the brake start indication circuit includes a brake operation indicator light PW02, the first end of the normally open switch of the brake contactor KM01 is connected to the external 220V power supply through the main power switch F01, the second end of the normally open switch of the brake contactor KM01 is connected to the first end of the brake operation indicator light PW02, and the second end of the brake operation indicator light PW02 is grounded.

[0011] Further improvements of the technical solution include that the swing chute indication circuit includes a swing chute pre-start switch Q02, an emergency stop button S04, a swing chute pre-start relay K04, a swing chute left swing contactor KM02, a swing chute right swing contactor KM03, a swing chute pre-start indicator light PW03 and a swing chute swing indicator light PW04;

[0012] The first end of the swing chute pre-start switch Q02 is connected to the external 220V power supply through the main power switch F01, and the second end of the swing chute pre-start switch Q02 is connected to the first end of the swing chute pre-start relay K04 coil, the first end of the brake contactor KM01 normally open switch and the first end of the swing chute pre-start indicator light PW03 through the emergency stop button S04. The second end of the swing chute pre-start relay K04 coil and the second end of the swing chute pre-start indicator light PW03 are both grounded, and the second end of the brake contactor KM01 normally open switch is connected to the intermediate relay The first end of the normally open switch of the contactor K01 and the first end of the normally open switch of the intermediate relay K02, the second end of the normally open switch of the intermediate relay K01 is connected to the first end of the coil of the left swing contactor KM02 of the swing chute through the normally closed switch of the right swing contactor KM03 of the swing chute, the second end of the normally open switch of the intermediate relay K02 is connected to the first end of the coil of the right swing contactor KM03 of the swing chute through the normally closed switch of the left swing contactor KM02 of the swing chute, the second end of the coil of the left swing contactor KM02 of the swing chute and the second end of the coil of the right swing contactor KM03 of the swing chute are both grounded;

[0013] The first end of the normally open switch of the left swing contactor KM02 of the swing chute and the first end of the normally open switch of the right swing contactor KM03 of the swing chute are both connected to the external 220V power supply through the main power switch F01, the second end of the normally open switch of the left swing contactor KM02 of the swing chute and the second end of the normally open switch of the right swing contactor KM03 of the swing chute are both connected to the first end of the swing chute swing indicator light PW04, and the second end of the swing chute swing indicator light PW04 is grounded.

[0014] Further improvements of the technical solution include that the power indication circuit includes a power indicator light PW05, a first end of the normally open switch of the brake pre-start relay K03 is connected to an external 220V power supply through a main power switch F01, a second end of the normally open switch of the brake pre-start relay K03 is connected to a first end of the power indicator light PW05 through a normally open switch of a swing chute pre-start relay K04, and a second end of the power indicator light PW05 is grounded.

[0015] The beneficial effect of the utility model is that the utility model can judge whether the swing slide is powered off through the power indicator light, which is convenient for timely discovery and timely repair, and avoids safety accidents.

[0016] In addition, the utility model has a reliable design principle, a simple structure and a very broad application prospect.

[0017] It can be seen that compared with the prior art, the present invention has outstanding substantive features and significant progress, and the beneficial effects of its implementation are also obvious. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the circuit schematic diagram of the safety indicating device. DETAILED DESCRIPTION

[0019] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0021] like Figure 1 As shown, the utility model provides a molten iron swing chute safety indication device, including a main power switch F01, a swing chute indication circuit, a swing chute brake indication circuit and a power indication circuit, the swing chute indication circuit, the swing chute brake indication circuit and the power indication circuit are all connected to an external 220V power supply through the main power switch F01; the swing chute indication circuit and the power indication circuit can only be energized after the swing chute brake indication circuit is fully energized.

[0022] Specifically, the swing chute brake indication circuit includes an intermediate circuit, a brake starting circuit and a brake starting indication circuit. The intermediate circuit, the brake starting circuit and the brake starting indication circuit can only be energized and work in sequence; the intermediate circuit includes a start button S01, an emergency stop button S02, an intermediate relay K01 and an intermediate relay K02. The first end of the start button S01 is connected to an external 220V power supply through the main power switch F01, and the second end of the start button S01 is connected to the first end of the intermediate relay K01 coil and the first end of the intermediate relay K02 coil through the emergency stop button S02. The second end of the intermediate relay K01 coil and the second end of the intermediate relay K02 coil are both grounded.

[0023] The brake starting circuit includes a brake pre-start switch Q01, an emergency stop button S03, a brake pre-start relay K03, a brake contactor KM01 and a brake pre-start indicator light PW01; the first end of the brake pre-start switch Q01 is connected to an external 220V power supply through a main power switch F01, the second end of the brake pre-start switch Q01 is connected to a first end of a coil of the brake pre-start relay K03, a first end of a normally open switch of an intermediate relay K01, a first end of a normally open switch of an intermediate relay K02 and a first end of a brake pre-start indicator light PW01 through an emergency stop button S03, the second end of the coil of the brake pre-start relay K03 and the second end of the brake pre-start indicator light PW01 are both grounded, the second end of the normally open switch of the intermediate relay K01 and the second end of the normally open switch of the intermediate relay K02 are both connected to a first end of a coil of the brake contactor KM01, and the second end of the coil of the brake contactor KM01 is grounded.

[0024] The brake start indication circuit includes a brake operation indicator light PW02, a first end of the normally open switch of the brake contactor KM01 is connected to an external 220V power supply through a main power switch F01, a second end of the normally open switch of the brake contactor KM01 is connected to a first end of the brake operation indicator light PW02, and a second end of the brake operation indicator light PW02 is grounded.

[0025] The swing chute indication circuit includes a swing chute pre-start switch Q02, an emergency stop button S04, a swing chute pre-start relay K04, a swing chute left swing contactor KM02, a swing chute right swing contactor KM03, a swing chute pre-start indicator light PW03 and a swing chute swing indicator light PW04; the first end of the swing chute pre-start switch Q02 is connected to an external 220V power supply through a main power switch F01, the second end of the swing chute pre-start switch Q02 is connected to the first end of the swing chute pre-start relay K04 coil, the first end of the brake contactor KM01 normally open switch and the first end of the swing chute pre-start indicator light PW03 through the emergency stop button S04, the second end of the swing chute pre-start relay K04 coil and the second end of the swing chute pre-start indicator light PW03 are both grounded, and the second end of the brake contactor KM01 normally open switch is connected to the first end of the intermediate relay K01 normally open switch and the intermediate relay K02 normally open switch The first end of the closure, the second end of the normally open switch of the intermediate relay K01 is connected to the first end of the coil of the left swing contactor KM02 of the swing chute through the normally closed switch of the right swing contactor KM03 of the swing chute, the second end of the normally open switch of the intermediate relay K02 is connected to the first end of the coil of the right swing contactor KM03 of the swing chute through the normally closed switch of the left swing contactor KM02 of the swing chute, the second end of the coil of the left swing contactor KM02 of the swing chute and the second end of the coil of the right swing contactor KM03 of the swing chute are both grounded; the first end of the normally open switch of the left swing contactor KM02 of the swing chute and the first end of the normally open switch of the right swing contactor KM03 of the swing chute are both connected to the external 220V power supply through the main power switch F01, the second end of the normally open switch of the left swing contactor KM02 of the swing chute and the second end of the normally open switch of the right swing contactor KM03 of the swing chute are both connected to the first end of the swing chute swing indicator light PW04, and the second end of the swing chute swing indicator light PW04 is grounded.

[0026] The power indication circuit includes a power indicator light PW05. The first end of the normally open switch of the brake pre-start relay K03 is connected to the external 220V power supply through the main power switch F01. The second end of the normally open switch of the brake pre-start relay K03 is connected to the first end of the power indicator light PW05 through the normally open switch of the swing chute pre-start relay K04. The second end of the power indicator light PW05 is grounded. When powered on, the swing chute works normally and the power indicator light PW05 is always on. Since the power indicator light PW05 is outside the operating box, the operator can see it at a glance and make a judgment. If the swing chute suddenly loses power and the power indicator light PW05 goes out, the operator can contact the maintenance personnel for processing as soon as possible to avoid safety accidents caused by molten iron falling to the ground.

[0027] The above disclosure is only the preferred implementation mode of the utility model, but the utility model is not limited thereto. Any non-creative changes that can be thought of by technicians in this field, as well as several improvements and modifications made without departing from the principle of the utility model, should fall within the scope of protection of the utility model.

Claims

1. A safety indicator device for a molten iron swing chute, characterized in that: It includes a main power switch F01, a swing chute indication circuit, a swing chute brake indication circuit and a power indication circuit. The swing chute indication circuit, the swing chute brake indication circuit and the power indication circuit are all connected to an external 220V power supply through the main power switch F01; the swing chute indication circuit and the power indication circuit can only be energized after the swing chute brake indication circuit is fully energized.

2. The molten iron swing chute safety indicator device according to claim 1, characterized in that: The swing chute brake indication circuit includes an intermediate circuit, a brake start circuit and a brake start indication circuit. The intermediate circuit, the brake start circuit and the brake start indication circuit can only be powered on and work in sequence; The intermediate circuit includes a start button S01, an emergency stop button S02, an intermediate relay K01 and an intermediate relay K02. The first end of the start button S01 is connected to an external 220V power supply through the main power switch F01, and the second end of the start button S01 is connected to the first end of the intermediate relay K01 coil and the first end of the intermediate relay K02 coil through the emergency stop button S02. The second end of the intermediate relay K01 coil and the second end of the intermediate relay K02 coil are both grounded.

3. The molten iron swing chute safety indicator device according to claim 2, characterized in that: The brake start circuit includes a brake pre-start switch Q01, an emergency stop button S03, a brake pre-start relay K03, a brake contactor KM01 and a brake pre-start indicator light PW01; The first end of the brake pre-start switch Q01 is connected to the external 220V power supply through the main power switch F01, and the second end of the brake pre-start switch Q01 is connected to the first end of the brake pre-start relay K03 coil, the first end of the intermediate relay K01 normally open switch, the first end of the intermediate relay K02 normally open switch and the first end of the brake pre-start indicator light PW01 through the emergency stop button S03, the second end of the brake pre-start relay K03 coil and the second end of the brake pre-start indicator light PW01 are both grounded, the second end of the intermediate relay K01 normally open switch and the second end of the intermediate relay K02 normally open switch are both connected to the first end of the brake contactor KM01 coil, and the second end of the brake contactor KM01 coil is grounded.

4. The molten iron swing chute safety indicator device according to claim 3, characterized in that: The brake start indication circuit includes a brake operation indicator light PW02, a first end of the normally open switch of the brake contactor KM01 is connected to an external 220V power supply through a main power switch F01, a second end of the normally open switch of the brake contactor KM01 is connected to a first end of the brake operation indicator light PW02, and a second end of the brake operation indicator light PW02 is grounded.

5. The molten iron swing chute safety indicator device according to claim 4, characterized in that: The swing chute indication circuit includes a swing chute pre-start switch Q02, an emergency stop button S04, a swing chute pre-start relay K04, a swing chute left swing contactor KM02, a swing chute right swing contactor KM03, a swing chute pre-start indicator light PW03 and a swing chute swing indicator light PW04; The first end of the swing chute pre-start switch Q02 is connected to the external 220V power supply through the main power switch F01, and the second end of the swing chute pre-start switch Q02 is connected to the first end of the swing chute pre-start relay K04 coil, the first end of the brake contactor KM01 normally open switch and the first end of the swing chute pre-start indicator light PW03 through the emergency stop button S04. The second end of the swing chute pre-start relay K04 coil and the second end of the swing chute pre-start indicator light PW03 are both grounded, and the second end of the brake contactor KM01 normally open switch is connected to the intermediate relay The first end of the normally open switch of the contactor K01 and the first end of the normally open switch of the intermediate relay K02, the second end of the normally open switch of the intermediate relay K01 is connected to the first end of the coil of the left swing contactor KM02 of the swing chute through the normally closed switch of the right swing contactor KM03 of the swing chute, the second end of the normally open switch of the intermediate relay K02 is connected to the first end of the coil of the right swing contactor KM03 of the swing chute through the normally closed switch of the left swing contactor KM02 of the swing chute, the second end of the coil of the left swing contactor KM02 of the swing chute and the second end of the coil of the right swing contactor KM03 of the swing chute are both grounded; The first end of the normally open switch of the left swing contactor KM02 of the swing chute and the first end of the normally open switch of the right swing contactor KM03 of the swing chute are both connected to the external 220V power supply through the main power switch F01, the second end of the normally open switch of the left swing contactor KM02 of the swing chute and the second end of the normally open switch of the right swing contactor KM03 of the swing chute are both connected to the first end of the swing chute swing indicator light PW04, and the second end of the swing chute swing indicator light PW04 is grounded.

6. The molten iron swing chute safety indicator device according to claim 5, characterized in that: The power indication circuit includes a power indicator light PW05. The first end of the normally open switch of the brake pre-start relay K03 is connected to the external 220V power supply through the main power switch F01. The second end of the normally open switch of the brake pre-start relay K03 is connected to the first end of the power indicator light PW05 through the normally open switch of the swing chute pre-start relay K04. The second end of the power indicator light PW05 is grounded.

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