Ignition device of sintering machine

Abstract

The utility model discloses an ignition device of a sintering machine, which belongs to the technical field of metallurgy and is applied to a sintering machine body, a supporting plate is arranged inside the sintering machine body, a connecting shaft is fixedly connected inside the sintering machine body, and two ends of the connecting shaft extend to the outside of the sintering machine body and are movably connected with structural arms. Supporting frames located behind the connecting shaft are fixedly connected to the left end face and the right end face of the sintering machine body correspondingly, first hydraulic rods are movably installed between the supporting frames and the structural arms through hinged supports, and the output ends of the first hydraulic rods stretch out and draw back to drive the structural arms to change the angle, so that the structural arms drive movable plates and supporting plates below; the supporting plate drives the burner to move up and down, the distance between the burner and a sintering raw material layer is changed, it is guaranteed that the distance between the burner and the sintering raw material layer is the same, the burning effect of sintering raw materials is better, and the burner has the advantages of being better in burning effect, low in fuel consumption and high in fuel utilization rate.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgy, in particular to an ignition device for a sintering machine. Background Art

[0002] In the sintering production process, the fuel is generally blast furnace gas, and the combustion-supporting air is compressed air. The ignition device of the sintering machine for manufacturing sintered ore is a device used to spray fuel and air from a burner onto the upper surface of the sintering raw material layer on the support plate to form a combustion flame, which is used to heat the sintering raw material layer, thereby burning the coke in the sintering raw material layer.

[0003] When the existing device implements oxygen-enriched combustion air to increase the flame temperature, the flame length is relatively short, and the sintering machine ignition device is a fixed arm device, which makes it impossible to adjust the distance between the flame and the material surface, making the operation inconvenient. In the sintering production process, the thickness of the material layer is constantly changing, and the flame cannot evenly heat all the material layers, resulting in poor oxygen-enriched combustion transformation effect. In addition, when the flame is far away from the material layer, more fuel is consumed, the fuel combustion efficiency is low, and fuel waste is easily caused. Utility Model Content

[0004] In order to solve the problems in the above background, the utility model provides an ignition device for a sintering machine, which has the characteristics of better combustion effect, low fuel consumption and high fuel utilization rate.

[0005] The utility model is implemented as follows: a sintering machine ignition device is applied to a sintering machine body, wherein a support plate is arranged inside the sintering machine body;

[0006] A connecting shaft is fixedly connected inside the sintering machine body, and both ends of the connecting shaft extend to the outside of the sintering machine body and are movably connected to a structural arm;

[0007] The left and right end surfaces of the sintering machine body are both fixedly connected with a support frame, and a first hydraulic rod is movably installed between the support frame and the structural arm through a hinge seat;

[0008] The other end of the structural arm is movably connected with a movable plate, the upper end surfaces of the two movable plates are fixedly connected with a supporting beam, the lower end surface of the supporting beam is installed with an infrared rangefinder, the opposite side walls of the two movable plates are fixedly connected with a supporting rod, the other end of the support rod is fixedly connected with a connecting plate located inside the sintering machine body, a support plate is fixedly connected between the two connecting plates, the upper end surface of the support plate is fixedly connected with an air intake pipe, the lower end of the air intake pipe is connected with a plurality of burners which are equidistantly distributed and extend to the bottom of the support plate, and the outer wall of the air intake pipe is connected with a blast furnace gas pipe and an oxygen-enriched combustion-supporting air duct.

[0009] In order to enable the bellows to exhaust air to the sintering raw material layer, as a preferred sintering machine ignition device of the utility model, two bellows distributed front and back and located below the support plate are installed inside the sintering machine body, and an exhaust fan is installed on the side wall of the sintering machine body. The bottom of the two bellows is connected to the exhaust fan through a ventilation pipe.

[0010] In order to facilitate the adjustment of the angle of the movable plate, as a preferred embodiment of the ignition device for a sintering machine of the utility model, a second hydraulic rod is movably installed between the structural arm and the movable plate via a hinge seat.

[0011] In order to make the pipeline more durable, as a preferred sintering machine ignition device of the utility model, the blast furnace gas pipe and the oxygen-enriched combustion-supporting air pipe are both configured as metal hoses.

[0012] In order to prevent the sintering raw materials from entering the wind box, as a preferred sintering machine ignition device of the utility model, an isolation mesh plate is installed between the wind box and the support plate.

[0013] For the convenience of operation, as a preferred ignition device for a sintering machine of the utility model, a control panel is fixedly connected to the side wall of the sintering machine body.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model spreads sintering raw materials on a supporting plate, allows blast furnace gas and oxygen-enriched combustion-supporting air to enter an air inlet pipe through a blast furnace gas pipe and an oxygen-enriched combustion-supporting air pipe, then sprays flames through a burner to heat the sintering raw material layer on the supporting plate to make it burn, measures the distance between the burner and the sintering raw material layer through an infrared rangefinder, drives a structural arm to change its angle through the extension and retraction of the output end of a first hydraulic rod, drives a movable plate and a supporting plate below, and drives the support plate to move the burner up and down, changes the distance between the burner and the sintering raw material layer, ensures that the distance between the burner and the sintering raw material layer is the same, and simultaneously extends and retracts the output end of a second hydraulic rod to keep the movable plate horizontal, ensures that the burner is perpendicular to the surface of the sintering raw material layer, achieves a better combustion effect of the sintering raw materials, reduces fuel consumption, and improves fuel utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is the overall structural diagram of a sintering machine ignition device of the utility model;

[0017] Figure 2 This is a rear view of an ignition device for a sintering machine according to the utility model;

[0018] Figure 3 The utility model is a top view of a sintering machine ignition device.

[0019] In the figure, 1, sintering machine body; 2, connecting shaft; 3, structural arm; 4, support frame; 5, first hydraulic rod; 6, movable plate; 7, second hydraulic rod; 8, supporting beam; 9, infrared rangefinder; 10, support rod; 11, connecting plate; 12, support plate; 13, air inlet pipe; 14, burner; 15, blast furnace gas pipe; 16, oxygen-enriched combustion-supporting air duct; 17, support plate; 18, bellows; 19, ventilation pipe; 20, exhaust fan; 21, control panel; 22, isolation mesh plate. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0022] See also Figure 1-3 , a sintering machine ignition device, applied to a sintering machine body 1, a support plate 17 is arranged inside the sintering machine body 1;

[0023] A connecting shaft 2 is fixedly connected to the inside of the sintering machine body 1, and both ends of the connecting shaft 2 extend to the outside of the sintering machine body 1 and are movably connected to a structural arm 3;

[0024] The left and right end surfaces of the sintering machine body 1 are fixedly connected with a support frame 4 located behind the connecting shaft 2, and a first hydraulic rod 5 is movably installed between the support frame 4 and the structural arm 3 through a hinge seat;

[0025] The other end of the structural arm 3 is movably connected to a movable plate 6, the upper end surfaces of the two movable plates 6 are fixedly connected to a supporting beam 8, the lower end surface of the supporting beam 8 is installed with an infrared rangefinder 9, the opposite side walls of the two movable plates 6 are fixedly connected to a support rod 10, the other end of the support rod 10 is fixedly connected to a connecting plate 11 located inside the sintering machine body 1, a support plate 12 is fixedly connected between the two connecting plates 11, the upper end surface of the support plate 12 is fixedly connected to an air intake pipe 13, the lower end of the air intake pipe 13 is connected to a plurality of burners 14 which are equidistantly distributed and extend to the bottom of the support plate 12, and the outer wall of the air intake pipe 13 is connected to a blast furnace gas pipe 15 and an oxygen-enriched combustion-supporting air pipe 16.

[0026] In this embodiment, the sintering raw material is spread on the support plate 17, and the blast furnace gas and the oxygen-enriched combustion-supporting air enter the air inlet pipe 13 through the blast furnace gas pipe 15 and the oxygen-enriched combustion-supporting air pipe 16, and then the burner 14 sprays flames to heat the sintering raw material layer on the support plate 17 to burn it;

[0027] The distance between the burner 14 and the sintering raw material layer is measured by the infrared rangefinder 9, and the output end of the first hydraulic rod 5 is extended and retracted to drive the structural arm 3 to change the angle, so that the structural arm 3 drives the movable plate 6 and the support plate 12 below, and the support plate 12 drives the burner 14 to move up and down, thereby changing the distance between the burner 14 and the sintering raw material layer to ensure that the distance between the burner 14 and the sintering raw material layer is the same;

[0028] At the same time, the output end of the second hydraulic rod 7 is extended and retracted to keep the movable plate 6 horizontal, ensuring that the burner 14 is perpendicular to the surface of the sintering raw material layer, so that the combustion effect of the sintering raw material is better, the fuel consumption is reduced, and the fuel utilization rate is improved.

[0029] As a technical optimization solution of the utility model, two bellows 18 are installed inside the sintering machine body 1, which are distributed front and back and located below the support plate 17. An exhaust fan 20 is installed on the side wall of the sintering machine body 1, and the bottom of the two bellows 18 is connected to the exhaust fan 20 through a ventilation pipe 19.

[0030] In this embodiment, the exhaust fan 20 draws air, so that the wind box 18 draws air to the bottom of the support plate 17, so that the inner wall of the sintering raw material layer is easier to burn, and the combustion effect of the sintering raw material is better.

[0031] As a technical optimization solution of the utility model, a second hydraulic rod 7 is movably installed between the structural arm 3 and the movable plate 6 via a hinge seat.

[0032] In this embodiment, the output end of the second hydraulic rod 7 is extended and retracted to keep the movable plate 6 horizontal, ensuring that the burner 14 is perpendicular to the surface of the sintering raw material layer, so that the flame is closer to the surface of the sintering raw material layer, reducing fuel consumption.

[0033] As a technical optimization solution of the utility model, the blast furnace gas pipe 15 and the oxygen-enriched combustion-supporting air pipe 16 are both configured as metal hoses.

[0034] In this embodiment: the metal hose is used to prevent the pipeline from being damaged due to high temperature, thereby ensuring the supply of fuel.

[0035] As a technical optimization solution of the present invention, an isolation mesh plate 22 is installed between the bellows 18 and the support plate 17 .

[0036] In this embodiment, the isolation mesh plate 22 is used to prevent the sintering raw materials from entering the wind box and causing damage.

[0037] As a technical optimization solution of the present invention, a control panel 21 is fixedly connected to the side wall of the sintering machine body 1 .

[0038] In this embodiment, the control panel 21 is electrically connected to the first hydraulic rod 5, the second hydraulic rod 7, the infrared rangefinder 9 and the exhaust fan 20 respectively, so that the device operation is more convenient.

[0039] The working principle and use process of the utility model are as follows: first, the sintering raw materials are spread on the support plate 17, and the blast furnace gas and the oxygen-enriched combustion-supporting air enter the air inlet pipe 13 through the blast furnace gas pipe 15 and the oxygen-enriched combustion-supporting air pipe 16, and then the flame is sprayed through the burner 14 to heat the sintering raw material layer on the support plate 17 to make it burn;

[0040] Then the distance between the burner 14 and the sintering raw material layer is measured by the infrared rangefinder 9. When the sintering raw material layer becomes thinner and the distance becomes larger, the infrared rangefinder 9 feeds back to the control panel 21, and then the control panel 21 controls the output end of the first hydraulic rod 5 to shorten, driving the structural arm 3 to change the angle, so that the structural arm 3 drives the movable plate 6 and the support plate 12 below, so that the support plate 12 drives the burner 14 to move downward, and at the same time, the output end of the second hydraulic rod 7 is extended and retracted to keep the movable plate 6 horizontal, ensuring that the burner 14 is perpendicular to the surface of the sintering raw material layer, shortening the distance between the burner 14 and the sintering raw material layer, making the combustion effect of the sintering raw material better, reducing fuel consumption, and improving fuel utilization.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A sintering machine ignition device, applied to a sintering machine body (1), characterized in that: A support plate (17) is arranged inside the sintering machine body (1); A connecting shaft (2) is fixedly connected to the interior of the sintering machine body (1), and both ends of the connecting shaft (2) extend to the exterior of the sintering machine body (1) and are movably connected to a structural arm (3); The left and right end surfaces of the sintering machine body (1) are both fixedly connected to a support frame (4), and a first hydraulic rod (5) is movably mounted between the support frame (4) and the structural arm (3) via a hinge seat; The other end of the structural arm (3) is movably connected to a movable plate (6), the upper end surfaces of the two movable plates (6) are fixedly connected to a supporting crossbeam (8), and the lower end surface of the supporting crossbeam (8) is mounted with an infrared rangefinder (9); The opposite side walls of the two movable plates (6) are fixedly connected to support rods (10), the other end of the support rods (10) is fixedly connected to a connecting plate (11) located inside the sintering machine body (1), a support plate (12) is fixedly connected between the two connecting plates (11), the upper end surface of the support plate (12) is fixedly connected to an air intake pipe (13), the lower end of the air intake pipe (13) is connected to a plurality of burners (14) that are equidistantly distributed and extend to below the support plate (12), and the outer wall of the air intake pipe (13) is connected to a blast furnace gas pipe (15) and an oxygen-enriched combustion-supporting air pipe (16).

2. The ignition device for a sintering machine according to claim 1, characterized in that: Two wind boxes (18) are installed inside the sintering machine body (1) and are distributed front and back and located below the support plate (17). An exhaust fan (20) is installed on the side wall of the sintering machine body (1). The bottom of the two wind boxes (18) is connected to the exhaust fan (20) through a ventilation pipe (19).

3. The ignition device for a sintering machine according to claim 1, characterized in that: A second hydraulic rod (7) is movably mounted between the structural arm (3) and the movable plate (6) via a hinge seat.

4. The ignition device for a sintering machine according to claim 1, characterized in that: The blast furnace gas pipe (15) and the oxygen-enriched combustion-supporting air pipe (16) are both configured as metal hoses.

5. The ignition device for a sintering machine according to claim 2, characterized in that: An isolation mesh plate (22) is installed between the bellows (18) and the support plate (17).

6. The ignition device for a sintering machine according to claim 1, characterized in that: A control panel (21) is fixedly connected to the side wall of the sintering machine body (1).

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