Oxygen-enriched bun baking device

Abstract

The utility model discloses an oxygen-enriched bag baking device, comprising a bag cover support and a bag cover mounted on the bag cover support, a connecting shaft is mounted on the top of the bag cover support through a bearing seat, the top surface of the bag cover is fixedly connected to the outer peripheral surface of the connecting shaft, and a driving beam for driving the connecting shaft to rotate so as to open and close the bag cover is fixedly arranged on the outer peripheral surface of the connecting shaft; the utility model also comprises an oxygen pipe and a compressed air pipe, the oxygen pipe and the compressed air pipe are connected in parallel with an air flow main pipe, the air flow main pipe is fixedly mounted on the bag cover support, an air flow connecting pipe is connected on the top surface of the bag cover, an air inlet of the air flow connecting pipe is rotatably connected with an air outlet of the air flow main pipe through a rotating joint; the axis of the connecting shaft, the axis of the air outlet of the air flow main pipe and the axis of the air inlet of the air flow connecting pipe are collinear; the air flow main pipe on the oxygen tank and the compressed air pipe is rotatably connected with the air flow connecting pipe on the bag cover, during the opening and closing of the bag cover, only part of the pipeline on the bag cover, namely the air flow main pipe, will swing around the connecting shaft, while most of the pipelines on the bag cover support, namely the oxygen pipe and the compressed air pipe, will not swing, so that the operation of the pipeline system of the oxygen-enriched bag baking device is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgy, in particular to an oxygen-enriched bag baking device. Background Art

[0002] The ladle baking device is a key equipment in the steel production process. With its efficient baking function, it occupies a pivotal position in the steelmaking process. The existing ladle baking device mainly uses air and gas for mixed combustion to quickly heat the inside of the ladle to the required temperature, thereby ensuring the smooth progress of the steelmaking process. This baking device not only has the characteristics of high efficiency and energy saving, but also incorporates intelligent control functions, which can accurately adjust the temperature and time according to actual production needs, greatly improving the baking effect and work efficiency; and the connection structure between the ladle cover and the ladle cover support of the current ladle baking device is relatively simple. Due to the process requirements, a certain amount of oxygen and compressed air need to be introduced into the ladle cover, so the ladle cover must be equipped with an air supply pipeline. However, when the ladle cover is opened, in order for this part of the pipeline to still be able to coordinate the air supply, many ladle cover structures will cause the ladle cover to rotate together when the cover is opened, thereby increasing the structural stability of this part of the pipeline structure when in use; in addition, when the cover is opened, the ladle and the ladle cover are separated due to the high temperature, which is easy to cause flame movement, and the high temperature flame will cause certain hidden dangers to the structural safety of the ladle cover support. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a bag roaster which is more stable in opening and closing the bag cover and can pressurize the fire when the bag cover is opened, in view of the shortcomings of the prior art.

[0004] The technical problem to be solved by the utility model is achieved through the following technical scheme: an oxygen-enriched bag roaster, comprising a bag cover bracket and a bag cover mounted on the bag cover bracket, a connecting shaft is mounted on the top of the bag cover bracket through a bearing seat, the top surface of the bag cover is fixedly connected to the outer peripheral surface of the connecting shaft, and a driving beam for driving the connecting shaft to rotate so as to open and close the bag cover is fixedly arranged on the outer peripheral surface of the connecting shaft;

[0005] It also includes an oxygen pipe and a compressed air pipe, wherein the oxygen pipe and the compressed air pipe are connected in parallel to an air flow main pipe, the air flow main pipe is fixedly mounted on the cover bracket, and an air flow connecting pipe is connected to the top surface of the cover, and the air inlet of the air flow connecting pipe is rotatably connected to the air outlet of the air flow main pipe through a rotating joint;

[0006] The axis of the connecting shaft, the axis of the air outlet of the air flow main pipe and the axis of the air inlet of the air flow connecting pipe are collinear.

[0007] The technical problem to be solved by the utility model can also be achieved by the following technical scheme. In the above-mentioned oxygen-enriched bag baking device, a mounting frame is installed on the bag cover bracket, an inert gas pipeline is installed on the mounting frame, and a purge through hole is opened on the outer peripheral surface of the inert gas pipeline facing the bag cover.

[0008] The technical problem to be solved by the utility model can also be achieved through the following technical scheme. In the above-mentioned oxygen-enriched bag baking device, the mounting frame is arranged on the bag cover bracket beside the bag cover.

[0009] The technical problem to be solved by the utility model can also be achieved through the following technical solutions: in the above-mentioned oxygen-enriched bag baking device, a side connecting beam is fixedly provided on the top surface of the bag cover, and the other end of the side connecting beam is fixedly connected to the outer peripheral surface of the connecting shaft.

[0010] The technical problem to be solved by the utility model can also be achieved through the following technical solutions: in the above-mentioned oxygen-enriched bag baking device, a middle connecting beam is fixedly provided on the middle top surface of the bag cover, and the other end of the middle connecting beam is fixedly connected to the side of the driving beam.

[0011] The technical problem to be solved by the utility model can also be achieved through the following technical scheme. In the above-mentioned oxygen-enriched bag baking device, two groups of side connecting beams are provided, and the two groups of side connecting beams are symmetrically arranged on the bag covers on both sides of the middle connecting beam.

[0012] The technical problem to be solved by the utility model can also be achieved through the following technical solutions. In the above-mentioned oxygen-enriched bag baking device, air valves are installed on the oxygen pipe, compressed air pipe and air flow main pipe.

[0013] Compared with the prior art, the beneficial technical effects of the utility model are:

[0014] (1) The airflow main pipes on the oxygen tank and the compressed air pipe are rotatably connected to the airflow connecting pipe on the bag cover. During the opening and closing of the bag cover, only part of the pipes on the bag cover, namely the airflow main pipe, will swing around the connecting axis, while most of the pipes on the bag cover bracket, namely the oxygen pipe and the compressed air pipe, will not swing, making the operation of the pipe system of the oxygen-enriched bag baking device more stable;

[0015] (2) In order to prevent the high-temperature flame in the ladle from damaging the ladle cover support during the period of opening the ladle cover, an inert gas pipeline added near the ladle cover support can be used to purge the ladle cover area, thereby suppressing the flame and protecting the ladle cover support to a certain extent;

[0016] (3) Two groups of side connecting beams are arranged on the top surface of the cover, and a middle connecting beam is arranged in the middle of the cover. The various connecting structures can make the connection strength between the cover and the connecting shaft higher and the connection stability stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a side view structural schematic diagram of the oxygen-enriched bun baking device of the utility model;

[0018] Figure 2 It is a side view structural schematic diagram of the oxygen-enriched bag baking device of the utility model when the bag cover is opened;

[0019] Figure 3 for Figure 1 Schematic diagram of the partial top view structure.

[0020] In the figure, 1. cover bracket; 2. cover; 3. burner; 4. connecting shaft; 5. driving beam; 6. oxygen pipe and compressed air pipe; 7. air flow main pipe; 8. air flow connecting pipe; 9. rotating joint; 10. mounting frame; 11. inert gas pipeline; 12. purge through hole; 13. side connecting beam; 14. middle connecting beam. DETAILED DESCRIPTION

[0021] The specific technical solutions of the present invention are further described below with reference to the accompanying drawings, so as to facilitate further understanding of the present invention by those skilled in the art, and do not constitute any limitation to the rights thereof.

[0022] Example 1, reference Figure 1-3 An oxygen-enriched bag roaster includes a bag cover support 1 and a bag cover 2 mounted on the bag cover support 1. The bag cover 2 is a prior art, and a burner 3 is arranged in the middle thereof. The bag cover support 1 can be constructed of profiles. A connecting shaft 4 is installed on the top of the bag cover support 1 through a bearing seat. The connecting shaft 4 is formed into a roughly cylindrical shaft body. The top surface of the bag cover 2 is fixedly connected to the outer peripheral surface of the connecting shaft 4. A driving beam 5 for driving the connecting shaft 4 to rotate so as to open and close the bag cover 2 is fixedly arranged on the outer peripheral surface of the connecting shaft 4. The driving beam 5 is formed into a roughly square plate-shaped structure, which can be driven by an external power mechanism. The cover 2 is provided with a plurality of air valves, and the air valves are installed on the cover 2. The cover 2 is provided with an air flow connecting pipe 8, and the air inlet of the air flow connecting pipe 8 is connected to the air outlet of the air flow connecting pipe 7 through a rotary joint 9. The rotary joint 9 is a prior art, and its design purpose is only to make the air flow connecting pipe 8 and the air flow connecting pipe 7 rotatably connected.

[0023] In order to ensure that when the cover 2 is opened or closed, only the air inlet of the airflow connecting pipe 8 rotates around the connecting shaft 4, and the airflow main pipe 7 installed on the cover bracket 1 does not swing, we just keep the axis of the connecting shaft 4, the axis of the air outlet of the airflow main pipe 7 and the axis of the air inlet of the airflow connecting pipe 8 collinear.

[0024] We found that due to the high temperature in the ladle, the flame is easy to move when the ladle cover 2 is opened. At this time, the ladle cover 2 is close to the ladle cover support 1, and the moving flame is easy to damage the ladle cover support 1. Therefore, we installed an arc-shaped mounting frame 10 supported by profile welding on the ladle cover support 1, and installed a section of inert gas pipeline 11 for purging inert gas on the mounting frame 10, and opened a plurality of purging through holes 12 on the outer peripheral surface of the inert gas pipeline 11 facing the ladle cover 2. The number of purging through holes 12 can be selected according to the use requirements, and the mounting frame 10 is arranged on the ladle cover support 1 beside the ladle cover 2. When the ladle cover 2 is opened or closed, the inert gas pipeline 11 can be purged with inert gas such as nitrogen from an external gas source to the area near the ladle cover 2, so as to reduce the temperature of the ladle cover support 1 and protect the area of ​​the ladle cover support 1 close to the ladle cover 2;

[0025] In order to maintain the fixed connection between the cover 2 and the connecting shaft 4, a side connecting beam 13 is fixedly provided on the top surface of the cover 2, and the other end of the side connecting beam 13 is fixedly connected to the outer peripheral surface of the connecting shaft 4;

[0026] In order to strengthen the connection strength between the cover 2 and the connecting shaft 4, a middle connecting beam 14 is fixedly provided on the middle top surface of the cover 2. The other end of the middle connecting beam 14 is fixedly connected to the side surface of the driving beam 5. The side connecting beam 13 and the middle connecting beam 14 can be formed into a roughly square plate-shaped structure.

[0027] In addition, two groups of side connecting beams 13 may be provided, and the two groups of side connecting beams 13 are symmetrically arranged on the cover 2 on both sides of the middle connecting beam 14 .

[0028] When the oxygen-enriched ladle baking device is in use, when it is necessary to open or close the cover, we purge the area of ​​the ladle cover support 1 close to the ladle cover 2 through the inert gas pipeline 11. On the one hand, it can reduce the temperature in the area, and on the other hand, it can suppress the flame emitted by the ladle, thereby protecting the structural stability of the ladle cover support 1 to the greatest extent; and, the side connecting beams 13 and the middle connecting beams 14 added to the ladle cover 2 can make the connection between the ladle cover 2, the connecting shaft 4 and the driving beam 5 more stable and have a long service life.

Claims

1. An oxygen-enriched bag baking device, comprising a bag cover support and a bag cover mounted on the bag cover support, characterized in that: A connecting shaft is installed on the top of the cover bracket through a bearing seat, the top surface of the cover is fixedly connected to the outer circumference of the connecting shaft, and a driving beam is fixedly provided on the outer circumference of the connecting shaft to drive the connecting shaft to rotate so as to open and close the cover; It also includes an oxygen pipe and a compressed air pipe, wherein the oxygen pipe and the compressed air pipe are connected in parallel to an air flow main pipe, the air flow main pipe is fixedly mounted on the cover bracket, and an air flow connecting pipe is connected to the top surface of the cover, and the air inlet of the air flow connecting pipe is rotatably connected to the air outlet of the air flow main pipe through a rotating joint; The axis of the connecting shaft, the axis of the air outlet of the air flow main pipe and the axis of the air inlet of the air flow connecting pipe are collinear.

2. The oxygen-enriched bag baking device according to claim 1, characterized in that: A mounting frame is mounted on the cover bracket, an inert gas pipeline is mounted on the mounting frame, and a purge through hole is opened on the outer peripheral surface of the inert gas pipeline facing the cover.

3. The oxygen-enriched bag baking device according to claim 2, characterized in that: The mounting frame is arranged on the bag cover support beside the bag cover.

4. An oxygen-enriched bag baking device according to any one of claims 1 to 3, characterized in that: A side connecting beam is fixedly arranged on the top surface of the package cover, and the other end of the side connecting beam is fixedly connected to the outer peripheral surface of the connecting shaft.

5. The oxygen-enriched bag baking device according to claim 4, characterized in that: A middle connecting beam is fixedly arranged on the middle top surface of the cover, and the other end of the middle connecting beam is fixedly connected to the side surface of the driving beam.

6. The oxygen-enriched bag baking device according to claim 5, characterized in that: The side connecting beams are provided in two groups, and the two groups of side connecting beams are symmetrically arranged on the covers on both sides of the middle connecting beam.

7. The oxygen-enriched bag baking device according to claim 1, characterized in that: The oxygen pipe, the compressed air pipe and the air flow main pipe are all equipped with air valves.

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