Rotatable casting powder baking device

Abstract

The utility model provides a rotatable casting powder baking device which comprises a furnace body and a plurality of air holes, the furnace body is obliquely arranged, the front end of the furnace body is higher than the rear end of the furnace body, a material receiving opening is formed in the position, close to the front end, of the furnace body, a discharging opening is formed in the position, close to the rear end, of the furnace body, and the front end of the furnace body is provided with the air holes; the gas pipe is inserted into the furnace body from the front end of the furnace body, a main burner and an auxiliary burner are arranged on the gas pipe, and the gas pipe is connected with a gas header pipe; a driving shaft of the driving module is inserted into the furnace body from the rear end of the furnace body, a fixing frame is arranged at the tail end of the driving shaft, and the fixing frame is fixedly connected with the inner wall of the furnace body. The rotatable casting powder baking device has the advantages of being even in heating, complete in baking, fast in temperature rising, safe, environmentally friendly, capable of saving energy and the like, the baking quality of casting powder can be improved, and smooth production and the quality of cast steel billets are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary furnaces, in particular to a rotatable tundish powder baking device. Background Art

[0002] The baking effect of continuous casting tundish powder plays a very important role in improving the quality of cast billets, especially the surface quality, and ensuring the smooth progress of continuous casting production. In the actual production process, if the water content of the continuous casting tundish powder exceeds the standard, the spreading property of the tundish powder deteriorates during the casting process, making it very likely to agglomerate into blocks, resulting in incomplete coverage of the molten steel, leading to secondary oxidation of the molten steel. Moreover, it will also make the dissolution effect of the tundish powder poor during the casting process, the lubrication effect is not ideal, causing steel leakage and affecting the quality of cast billets. In the production of special steel, higher requirements are also put forward for the control of [H] content in steel, and the water in the tundish powder will increase the [H] content in steel. In addition, if the water content of the tundish powder exceeds the standard, it is easy to cause splashing of molten steel, posing a safety hazard.

[0003] At present, most of the existing tundish powder baking devices are fixed or in the form of electric ovens and cannot rotate, resulting in uneven heating of the tundish powder. During the baking process, there may be incomplete baking, overburning, decarburization and agglomeration of the tundish powder due to heat concentration, which has a serious impact on production.

[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a rotatable tundish powder baking device, which has the advantages of uniform heating, complete baking, fast heating, safety, environmental protection, energy saving, etc., can improve the baking quality of the tundish powder, and ensure the smooth progress of production and the quality of cast billets. Summary of the Utility Model

[0005] The utility model attempts to provide a rotatable tundish powder baking device, which has the advantages of uniform heating, complete baking, fast heating, safety, environmental protection, energy saving, etc., and improves the baking quality of the tundish powder.

[0006] The utility model provides a rotatable tundish powder baking device, including: a furnace body, the furnace body is inclined, the front end of the furnace body is higher than the rear end, a charging port is arranged at the position of the furnace body close to the front end, a discharging port is arranged at the position of the furnace body close to the rear end, and a plurality of air holes are arranged at the front end of the furnace body; a gas pipe, the gas pipe is inserted into the furnace body from the front end of the furnace body, a main burner and an auxiliary burner are arranged on the gas pipe, and the gas pipe is connected to a gas main pipe; and a driving module, the driving shaft of the driving module is inserted into the furnace body from the rear end of the furnace body, a fixing frame is arranged at the end of the driving shaft, and the fixing frame is fixedly connected to the inner wall of the furnace body.

[0007] Furthermore, the gas pipeline outside the furnace body is supported by the support legs, and a support bearing is provided at the support point; the drive shaft outside the furnace body is supported by the support legs, and a support bearing is provided at the support point.

[0008] Furthermore, the receiving opening is covered and sealed, but it is opened during feeding; the discharging opening is covered and sealed, but it is opened during discharging.

[0009] Furthermore, a main burner is provided at the end of the gas pipeline, and an auxiliary burner is provided on the side of the gas pipeline.

[0010] Furthermore, a bearing is provided at the connection between the gas pipeline and the front end of the furnace body, and a bearing is provided at the connection between the drive shaft and the rear end of the furnace body.

[0011] Furthermore, a stop valve and a regulating valve are provided on the main gas pipeline.

[0012] Furthermore, the drive module includes a tilting motor.

[0013] The rotatable flux baking device provided by the present utility model has the advantages of uniform heating, complete baking, fast temperature rise, safety, environmental protection, energy saving, etc., can improve the baking quality of the flux, and ensure the smooth progress of production and the quality of the cast steel billet. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The figure shows a schematic structural diagram of the rotatable flux baking device according to an embodiment of the present utility model.

[0015] Reference Signs:

[0016] 100: Rotatable flux baking device;

[0017] 1: Furnace body; 11: Front end; 111: Air hole; 12: Rear end; 13: Receiving opening; 14: Discharging opening;

[0018] 2: Gas pipeline; 21: Main burner; 22: Auxiliary burner; 23: Support bearing;

[0019] 3: Support bearing; 31: Support leg; 32: Fixed frame;

[0020] 4: Support bearing; 41: Support leg;

[0021] 5: Drive module; 51: Drive shaft; 52: Fixed frame; 53: Support bearing;

[0022] 6: Main gas pipeline; 61: Stop valve; 62: Regulating valve. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to further understand the purpose, structure, features, and functions of the present utility model, the following is a detailed description in conjunction with the embodiments.

[0024] Figure 1 The following is a schematic structural view of a rotatable mold powder baking device according to an embodiment of the present utility model.

[0025] As Figure 1 shown, an embodiment of the present utility model provides a rotatable mold powder baking device 100, including: a furnace body 1, the furnace body 1 is inclined, the front end 11 of the furnace body 1 is higher than the rear end 12, a charging port 13 is arranged at a position of the furnace body near the front end, a discharging port 14 is arranged at a position of the furnace body near the rear end, and a plurality of air holes 111 are arranged at the front end 11 of the furnace body 1; a gas pipe 2, the gas pipe 2 is inserted into the furnace body 1 from the front end 11 of the furnace body 1, a main burner 21 and an auxiliary burner 22 are arranged on the gas pipe 2, the main burner 21 is arranged at the end of the gas pipe 2, and the auxiliary burner 22 is arranged on the side of the gas pipe 2; the gas pipe 2 is connected to a gas main pipe 6; and a driving module 5, a driving shaft 51 of the driving module 5 is inserted into the furnace body 1 from the rear end of the furnace body 1, a fixing bracket 52 is arranged at the end of the driving shaft 51, and the fixing bracket 52 is fixedly connected to the inner wall of the furnace body 1, so that the connection between the driving shaft 51 and the fixing bracket 52 is more stable. The charging port 13 is sealed with a cover but is opened when charging, and the discharging port 14 is sealed with a cover but is opened when discharging.

[0026] A cut-off valve 61 and a regulating valve 62 are arranged on the gas main pipe 6 for regulating the gas supply. When in use, the gas supply is turned on, the main burner 21 and the auxiliary burner 22 on the gas pipe 2 are ignited. The ignition can be carried out, for example, by inserting an ignition device through the charging port 13 or the discharging port 14 to the vicinity of the main burner 21 or the auxiliary burner 22, or by arranging an ignition device near the main burner 21 or the auxiliary burner 22 for ignition.

[0027] Then, the flames of the main burner 21 and the auxiliary burner 22 are turned down, the discharging port 14 is blocked, charging is started into the charging port 13, and the charging port 13 is blocked after the charging is completed. For example, the charging port 13 and the discharging port 14 can adopt a threaded seal or a flange seal.

[0028] After the feeding, the receiving port 13 is blocked, and at this time the discharging port 14 is also blocked. The driving module 6 may include a tilting motor and a reducer. Driven by the driving module 5, the furnace body 1 starts to rotate slowly, the main burner 21 and the auxiliary burner 22 are burning, and the baking of the protective slag in the furnace body 1 begins. The moisture evaporated during baking is discharged through the air holes 111, and at the same time the air holes 111 can also provide the oxygen required for the combustion of the main burner 21 and the auxiliary burner 22. Under the rotation of the furnace body 1, the protective slag will also rotate and tumble, so as to achieve full baking at all angles. Since the furnace body 1 is in an inclined state with the front end higher than the rear end, the air holes 111 are generally not blocked by the protective slag. To prevent dust from flying during baking, a dust-proof filter screen can be added to the air holes 111 to block the dust generated in the furnace body 1 during baking.

[0029] The gas pipe 2 outside the furnace body 1 is supported by the support leg 31, and a support bearing 3 is provided at the support, and the fixing frame 32 is used to connect the support bearing 3 with the furnace body 1 to achieve a stable connection; the drive shaft 51 outside the furnace body 1 is supported by the support leg 41, and a support bearing 4 is provided at the support; a support bearing 23 is provided at the connection between the gas pipe 2 and the front end of the furnace body 1, and a support bearing 53 is provided at the connection between the drive shaft 51 and the rear end 12 of the furnace body; thus facilitating the support of the gas pipe, the furnace body and the drive shaft, and at the same time not affecting the rotation of the furnace body 1.

[0030] The gas main pipe 6 can be a coal gas pipeline, such as the by-product coal gas generated in production. A stop valve 61 and a regulating valve 62 are provided on the gas main pipe 6 for regulating the gas supply. When the baking is completed, first close the main burner 21 and the auxiliary burner 22 to stop combustion, and then close the stop valve 61 to cut off the gas supply. At this time, the furnace body 1 is still rotating. When the discharging port 14 faces the ground after rotation, stop the driving module 5, the furnace body 1 stops rotating, open the discharging port 14, and discharge the material. At this time, most of the protective slag can be discharged, but there will still be residual protective slag in the furnace body 1. In order to completely pour out the residual protective slag in the furnace body 1, the driving module 5 can be started in the state where the discharging port 14 is open, and the furnace body 1 is rotated slowly. Since the furnace body 1 is inclined, the residual protective slag in the furnace body 1 will move to the discharging port and be discharged under the drive of the rotating furnace body 1.

[0031] The rotatable protective slag baking device provided by the utility model has the advantages of uniform heating, complete baking, fast heating, safety, environmental protection, energy saving, etc., can improve the baking quality of the protective slag, and ensure the smooth progress of production and the quality of the cast steel billet.

[0032] In the description of the present utility model, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. regarding the orientation or positional relationship are only for the convenience of describing the present utility model 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 thus should not be construed as a limitation to the present utility model.

[0033] The present utility model has been described by the above related embodiments. However, the above embodiments are only examples for implementing the present utility model. It must be pointed out that the disclosed embodiments do not limit the scope of the present utility model. On the contrary, modifications and refinements made without departing from the spirit and scope of the present utility model fall within the scope of patent protection of the present utility model.

Claims

1. A rotatable mold powder baking device, characterized in that, Comprising: A furnace body, which is inclined, with the front end of the furnace body higher than the rear end. A charging opening is provided at the position of the furnace body near the front end, a discharging opening is provided at the position of the furnace body near the rear end, and a plurality of air holes are provided at the front end of the furnace body; A gas pipe, which is inserted into the furnace body from the front end of the furnace body. A main burner and an auxiliary burner are provided on the gas pipe, and the gas pipe is connected to the gas main pipe; and A driving module, the driving shaft of which is inserted into the furnace body from the rear end of the furnace body. A fixing frame is provided at the end of the driving shaft, and the fixing frame is fixedly connected to the inner wall of the furnace body.

2. The rotatable mold powder baking device according to claim 1, characterized in that, The gas pipe outside the furnace body is supported by a support leg, and a support bearing is provided at the support position; the driving shaft outside the furnace body is supported by a support leg, and a support bearing is provided at the support position.

3. The rotatable mold powder baking device according to claim 2, characterized in that, The charging opening is sealed with a cover but is opened when charging, and the discharging opening is sealed with a cover but is opened when discharging.

4. The rotatable mold powder baking device according to claim 3, characterized in that, A main burner is provided at the end of the gas pipe, and an auxiliary burner is provided on the side of the gas pipe.

5. The rotatable mold powder baking device according to claim 4, characterized in that, A bearing is provided at the connection between the gas pipe and the front end of the furnace body, and a bearing is provided at the connection between the driving shaft and the rear end of the furnace body.

6. The rotatable mold powder baking device according to claim 5, characterized in that, A stop valve and a regulating valve are provided on the gas main pipe.

7. The rotatable mold powder baking device according to claim 6, wherein, The driving module includes a tilting motor.

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