Furnace cleaning device for aluminum alloy smelting furnace

Abstract

The utility model relates to the technical field of aluminum alloy smelting production equipment, in particular to a furnace cleaning device for an aluminum alloy smelting furnace, which is characterized in that a furnace cleaning shovel is rotatably connected with the top of a baffle, a shovel head plate is welded at the lower end of the furnace cleaning shovel, a mounting hole is arranged on the baffle, the outer wall of a supporting pipe is welded with the mounting hole, and a supporting short pipe is welded on the side wall of the furnace cleaning shovel towards the baffle; the front end of the supporting shaft is rotationally connected to the end, away from the furnace cleaning shovel, of the supporting short pipe, and the rear end of the supporting shaft extends out of the supporting pipe. The device can be dragged by a forklift to work, operators are separated from the severe environment in the smelting furnace, the working intensity is reduced, the working efficiency is improved, and the production is safer and more environment-friendly; the angle of the furnace cleaning plate can be adjusted, so that the furnace cleaning shovel and the shovel head plate can conveniently enter the smelting furnace, waste residues at dead corners can be conveniently scraped out, and furnace wall residues can be cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy smelting production equipment, in particular to a furnace cleaning device for an aluminum alloy smelting furnace. Background Art

[0002] The furnace wall and furnace bottom of the smelting furnace that has been used for a long time will adhere to a thick layer of residue, which needs to be removed with the help of a furnace cleaning device. The furnace cleaning operation belongs to a high-temperature and high-dust working environment. The existing technology generally uses manual furnace cleaning during the furnace cleaning time. The existing manual furnace cleaning method has occupational hazards such as burns, heat radiation, and inhalation of dust.

[0003] The prior art patent with patent number CN202110920639.1 and patent name "A method for cleaning slag attached to the furnace wall of a metal smelting furnace" discloses an apparatus and method for cleaning slag attached to the furnace wall of a metal smelting furnace using a rotating cutter disc. The patent can effectively clean the slag attached to the furnace wall while greatly reducing the damage to the furnace body caused by improper control of the furnace cleaning force during the cleaning process, reducing manual labor intensity, improving cleaning efficiency, and avoiding the risk of operators being scalded by high-temperature furnace gas when working at the furnace mouth, with high safety.

[0004] However, the above-mentioned prior art patent uses a rotating cutter disc to perform milling cleaning on the residue in the smelting furnace, which requires high operating skills. Improper operation can easily cause damage to the furnace body. The initial furnace wall surface is first cleaned along a straight line with a certain amount of cutting, and the cleaning of the residue adhering to the entire metal smelting furnace wall is completed in three feeding movements. This cannot solve the problem of damage to the furnace body caused by improper control of the furnace cleaning force. In addition, the use of this prior art also requires consideration of driving the cutter disc to rotate the drive device and the transmission device, which is difficult to design and has high manufacturing costs.

[0005] The patent number is CN202123221314.9 and the patent name is a prior art patent for a cleaning device for a smelting furnace. It discloses a cleaning device for a smelting furnace, including a cleaning plate, a connecting rod and a handle rod. The bottom end of the cleaning plate is provided with a cleaning shovel head that slides elastically therewith, and the rear end of the cleaning plate is provided with a protrusion, which is detachably connected to one end of the connecting rod, and the other end of the connecting rod is provided with an adjusting rod, and one end of the adjusting rod is elastically plugged into the inside of the handle rod and fastened by a fixing rod. The utility model adopts a retractable cleaning shovel head design, and cooperates with a buffer spring to facilitate shock absorption and buffering, and improve service life; it adopts a retractable adjusting rod design, which can be driven by the U-shaped handle to adjust the adjusting rod, so that the residue can be pulled out through the cleaning shovel head. It can automatically reset after use, which is simple and effective.

[0006] The above-mentioned prior art patent has a slot inside the cleaning plate for plugging with the cleaning shovel head, and slide grooves are respectively provided on both sides of the slot, a pulley fixing block is provided on the cleaning shovel head, and a pulley is provided on the pulley fixing block for cooperating with the slide groove, so as to facilitate the movement and adjustment of the cleaning shovel head, and a buffer spring is provided inside the slide groove and connected with the pulley fixing block to achieve a buffering effect. However, in actual use, the cleaning shovel head needs to apply a certain force to the residue in order to clean the residue from the furnace wall or furnace bottom, and the setting of the buffer spring will affect the force applied by the cleaning shovel head to the residue, which in turn affects the cleaning effect of the cleaning shovel head on the residue. In addition, the U-shaped handle is relatively close to the cleaning plate, but when in use, the cleaning plate needs to be extended into the interior of the smelting furnace, and the smelting furnace generally has a certain depth, so the U-shaped handle will generally follow the cleaning plate into the interior of the smelting furnace, causing inconvenience in operation and easy to cause harm to the operator. Utility Model Content

[0007] The utility model aims to provide an aluminum alloy smelting furnace cleaning device, which prevents operators from contacting the harsh environment inside the smelting furnace, thereby ensuring the safety of operators, reducing work intensity, improving work efficiency, and making production safer and more environmentally friendly.

[0008] The utility model discloses a furnace cleaning device for an aluminum alloy smelting furnace, comprising a furnace cleaning shovel, a baffle, a hinge, a support tube and a support shaft. The furnace cleaning shovel is rotatably connected to the top of the baffle, the hinge is connected to the top of the furnace cleaning shovel and the baffle, the lower end of the furnace cleaning shovel extends out of the baffle, a shovel head plate is welded to the lower end of the furnace cleaning shovel, a mounting hole is provided on the baffle, the front end of the support tube is plugged into the mounting hole, the outer wall of the support tube is welded to the mounting hole, the front end of the support tube is flush with the side wall of the baffle facing the furnace cleaning shovel, a support short tube is welded on the side wall of the furnace cleaning shovel facing the baffle, the support shaft is slidably plugged in the support tube, the front end of the support shaft is rotatably connected to one end of the support short tube away from the furnace cleaning shovel, and the rear end of the support shaft extends out of the support tube.

[0009] Furthermore, it includes a support component, which includes a fixed plate I, a fixed plate II and a square tube. There are two square tubes, which are symmetrical. The fixed plate I and the fixed plate II are welded between the two square tubes. The fixed plate I and the fixed plate II are parallel. The fixed plate I is arranged in front of the fixed plate II. The fixed plate I is provided with a through hole I, and the fixed plate II is provided with a through hole II. The through hole I and the through hole II are coaxial. The end of the support tube away from the baffle is inserted into the through hole I and the through hole II. The outer wall of the support tube is welded to the through hole I, and the outer wall of the support tube is welded to the through hole II.

[0010] Furthermore, the support assembly includes a fixed plate III, which is welded between two square tubes. The fixed plate III is parallel to the fixed plate II, and is arranged behind the fixed plate II. The fixed plate III is provided with a waist-shaped groove, and a threaded portion is provided at the rear end of the support shaft. The threaded portion extends out of the support tube, and the threaded portion is inserted into the waist-shaped groove. Two nuts are connected to the threaded portion, and the two nuts are respectively connected to the two side walls of the fixed plate III.

[0011] Furthermore, a groove is provided at the end of the supporting short tube away from the furnace cleaning shovel, and pin shaft holes II are provided on both side walls of the groove. The supporting shaft is arranged between the side walls, and pin shaft holes I are provided at the front ends of the two supporting shafts. The pin shaft hole I is coaxial with the two pin shaft holes II, and pin shafts are inserted in the pin shaft hole I and the two pin shaft holes II. The two ends of the pin shaft extend out of the two pin shaft holes II respectively, and elastic retaining rings are connected to the two ends of the pin shaft extending out of the two pin shaft holes II, and the pin shaft is provided with an installation groove for installing the elastic retaining ring.

[0012] Furthermore, the outer diameter of the supporting short tube is smaller than the inner diameter of the supporting tube, and the length of the pin shaft is smaller than the inner diameter of the supporting tube.

[0013] Furthermore, the inner diameter of the front end of the support tube is provided with a rounded corner.

[0014] Furthermore, a shovel head groove is provided at the lower end of the shovel head plate, and the shovel head groove is linearly evenly distributed along the width direction of the shovel head plate.

[0015] Furthermore, the shovel head plate material is 42CrMo steel.

[0016] Furthermore, a reinforcement sleeve is welded between the side wall of the baffle away from the furnace cleaning shovel and the outer wall of the support tube.

[0017] The beneficial effects of the utility model are as follows: the utility model solves the problem of occupational hazards existing in traditional manual furnace cleaning, the utility model can be operated by towing a forklift, the operating personnel are separated from the harsh environment inside the smelting furnace, the work intensity is reduced, the operation efficiency is improved, and the production is safer and more environmentally friendly; the angle of the furnace cleaning plate of the utility model is adjustable, which is convenient for the furnace cleaning shovel and the shovel head plate to enter the smelting furnace, convenient for scraping out dead corner waste slag, and can clean the furnace wall residue, solving the problem that the residue is not cleaned cleanly during the aluminum alloy smelting furnace cleaning process, dead corners are left in the furnace cleaning, there is a lot of aluminum alloy left in the residue, and it is difficult to clean the residue on the furnace wall and the bottom of the furnace. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 AA section view;

[0020] Figure 3This is a schematic diagram of the structure of the connection between the support shaft and the support short tube of the utility model;

[0021] Figure 4 For this utility model Figure 1 BB cross-sectional view;

[0022] Figure 5 For this utility model Figure 4 CC section view;

[0023] Figure 6 For this utility model Figure 4 DD cross-sectional view;

[0024] Figure 7 For this utility model Figure 4 EE cross-sectional view;

[0025] Figure 8 This is a schematic diagram of the structure of the utility model when the furnace cleaning shovel and the baffle are opened and closed at an angle of 30°;

[0026] Fig. 9 It is a structural schematic diagram of the utility model when the furnace cleaning shovel and the baffle are flat and not opened.

[0027] In the figure: 1. furnace cleaning shovel; 2. baffle; 201. mounting hole; 3. hinge; 4. reinforcement sleeve; 5. shovel head plate; 6. shovel head groove; 7. support tube; 701. fillet; 8. fixing plate I; 801. through hole I; 9. fixing plate II; 901. through hole II; 10. fixing plate III; 1001. waist groove; 11. support shaft; 1101. pin shaft hole I; 1102. threaded part; 12. nut; 13. square tube; 14. supporting short tube; 1401. groove; 1402. pin shaft hole II; 15. pin shaft; 16. elastic retaining ring. DETAILED DESCRIPTION

[0028] like Figure 1-Figure 9 As shown, the utility model is a furnace cleaning device for an aluminum alloy smelting furnace, comprising a furnace cleaning shovel 1, a baffle 2, a hinge 3, a support tube 7 and a support shaft 11. The furnace cleaning shovel 1 is rotatably connected to the top of the baffle 2, the hinge 3 is connected to the top of the furnace cleaning shovel 1 and the baffle 2, the lower end of the furnace cleaning shovel 1 extends out of the baffle 2, a shovel head plate 5 is welded to the lower end of the furnace cleaning shovel 1, a mounting hole 201 is provided on the baffle 2, the front end of the support tube 7 is inserted into the mounting hole 201, the outer wall of the support tube 7 is welded to the mounting hole 201, the front end of the support tube 7 is flush with the side wall of the baffle 2 facing the furnace cleaning shovel 1, a support short tube 14 is welded on the side wall of the furnace cleaning shovel 1 facing the baffle 2, the support shaft 11 is slidably inserted in the support tube 7, the front end of the support shaft 11 is rotatably connected to the end of the support short tube 14 away from the furnace cleaning shovel 1, and the rear end of the support shaft 11 extends out of the support tube 7.

[0029] The support tube 7 of the utility model has a certain length. When in use, the operator operates through the rear end of the support tube 7, extends the furnace cleaning shovel 1 and the baffle 2 to the position inside the smelting furnace where the residue needs to be cleaned, and cleans the residue through the shovel head plate 5. The furnace cleaning shovel 1 and the shovel head plate 5 can be driven to rotate through the support shaft 11 to change the cleaning angle. In addition, other structures can be set to allow the support shaft 11 to be positioned after sliding, so that the angles of the furnace cleaning shovel 1 and the shovel head plate 5 can be positioned after adjustment, such as setting an external thread and a nut at the rear end of the support shaft 11 to achieve positioning after the support shaft 11 slides.

[0030] The utility model includes a support assembly, which includes a fixed plate Ⅰ8, a fixed plate Ⅱ9 and a square tube 13. Two square tubes 13 are provided, and the two square tubes 13 are symmetrical. The fixed plate Ⅰ8 and the fixed plate Ⅱ9 are welded between the two square tubes 13. The fixed plate Ⅰ8 and the fixed plate Ⅱ9 are parallel. The fixed plate Ⅰ8 is arranged in front of the fixed plate Ⅱ9. A through hole Ⅰ801 is provided on the fixed plate Ⅰ8, and a through hole Ⅱ901 is provided on the fixed plate Ⅱ9. The through hole Ⅰ801 and the through hole Ⅱ901 are coaxial. The end of the support tube 7 away from the baffle 2 is inserted in the through hole Ⅰ801 and the through hole Ⅱ901. The outer wall of the support tube 7 is connected to the through hole Ⅰ801. 01 welding, the outer wall of the support tube 7 is welded to the through hole Ⅱ901; the support assembly includes a fixing plate Ⅲ10, the fixing plate Ⅲ10 is welded between the two square tubes 13, the fixing plate Ⅲ10 is parallel to the fixing plate Ⅱ9, the fixing plate Ⅲ10 is arranged behind the fixing plate Ⅱ9, the fixing plate Ⅲ10 is provided with a waist-shaped groove 1001, the rear end of the support shaft 11 is provided with a threaded portion 1102, the threaded portion 1102 extends out of the support tube 7, the threaded portion 1102 is inserted into the waist-shaped groove 1001, and two nuts 12 are connected to the threaded portion 1102, and the two nuts 12 are respectively connected to the two side walls of the fixing plate Ⅲ10.

[0031] The setting of the support assembly supports the furnace cleaning shovel 1, the baffle 2 and the support tube 7. At the same time, the forklift's fork arm is inserted into the two square tubes 13 to realize the use of a forklift to drive the utility model to perform furnace cleaning operations. Since the support tube 7 has a certain length and considering the weight of the furnace cleaning shovel 1 and the baffle 2, the connection at the rear end of the support tube 7 needs to consider load-bearing and stable connection. In order to solve the connection stability of the support tube 7 and the support assembly, the utility model provides two support plates, a fixed plate Ⅰ8 and a fixed plate Ⅱ9, to support the support tube 7. The setting of the fixed plate Ⅲ10 and the waist-shaped groove 1001 is used to position the support shaft 11. When the support shaft 11 slides, first loosen the two nuts 12, and tighten the two nuts 12 after the support shaft 11 is adjusted into place. When the sliding support shaft 11 drives the furnace cleaning shovel 1 to change its angle, the support shaft 11 will produce an up and down displacement inside the support tube 7, so a waist-shaped groove 1001 is provided.

[0032] It should be noted that in order to prevent stress concentration at the welding part of the support tube 7 from breaking after being subjected to strong force, the support tube 7 is required to be surface welded after passing through the through hole I801 and the through hole II901. When the length of the support tube 7 is too long, it is also possible to consider welding reinforcing ribs on the top of the support tube 7 to improve the overall strength of the support tube 7 and increase its anti-deformation ability.

[0033] When the utility model is in use, a screw hole can be arranged on the square tube 13, and a set screw can be arranged in the screw hole to fix the square tube 13 and the fork arm of the forklift.

[0034] A groove 1401 is provided at one end of the supporting short tube 14 away from the furnace cleaning shovel 1, and pin holes II 1402 are provided on both side walls of the groove 1401. The supporting shaft 11 is arranged between the side walls, and pin holes I 1101 are provided at the front ends of the two supporting shafts 11. The pin hole I 1101 is coaxial with the two pin holes II 1402, and pins 15 are inserted in the pin holes I 1101 and the two pin holes II 1402. Both ends of the pin 15 extend out of the two pin holes II 1402 respectively, and both ends of the pin 15 extending out of the two pin holes II 1402 are connected with elastic retaining rings 16, and the pin 15 is provided with an installation groove for installing the elastic retaining ring 16; the outer diameter of the supporting short tube 14 is smaller than the inner diameter of the supporting tube 7, and the length of the pin 15 is smaller than the inner diameter of the supporting tube 7; the inner diameter of the front end of the supporting tube 7 is provided with a fillet 701.

[0035] like Figure 2 , Figure 8 and Fig. 9 As shown, when the sliding support shaft 11 drives the furnace cleaning shovel 1 to change its angle, the supporting short tube 14 will enter the interior of the supporting tube 7. Therefore, the outer diameter of the supporting short tube 14 is required to be smaller than the inner diameter of the supporting tube 7, the length of the pin shaft 15 is required to be smaller than the inner diameter of the supporting tube 7, and the inner diameter of the front end of the supporting tube 7 is provided with a rounded corner 701, so as to prevent the supporting short tube 14 and the pin shaft 15 from interfering with the inner diameter of the supporting tube 7.

[0036] In the utility model, the path of angle change of the furnace cleaning shovel 1 is an arc with the rotation axis of the hinge 3 as the center and the straight-line distance between the rotation axis of the hinge 3 and the axis of the pin shaft 15 as the radius. In addition, when the angle of the furnace cleaning shovel 1 changes, the support shaft 11 will produce up and down displacement inside the support tube 7, so generally when the support shaft 11 touches the inner diameter of the support tube 7, the furnace cleaning shovel 1 reaches the maximum adjustment angle, and the inner diameter length of the waist-shaped groove 1001 can be set to be the same as the inner diameter of the support tube 7.

[0037] A reinforcing sleeve 4 is welded between the side wall of the baffle 2 facing away from the furnace cleaning shovel and the outer wall of the support tube 7 , thereby strengthening the connection strength between the support tube 7 and the baffle 2 .

[0038] A shovel head groove 6 is provided at the lower end of the shovel head plate 5, and the shovel head groove 6 is linearly evenly distributed along the width direction of the shovel head plate 5, so that the shovel head is sharper and has an obvious effect on scraping out the hard slag at the bottom of the furnace.

[0039] The shovel head plate 5 is made of 42CrMo steel, which is a high-strength and high-temperature resistant steel. It prevents the shovel head plate 5 from deforming or melting when operating in an aluminum melt at 700°C-800°C, affecting the use effect, and also prevents the shovel head plate 5 from melting in the aluminum melt to increase the Fe content in the melt.

Claims

1. A furnace cleaning device for an aluminum alloy smelting furnace, characterized in that: The invention comprises a furnace cleaning shovel (1), a baffle (2), a hinge (3), a support tube (7) and a support shaft (11); the furnace cleaning shovel (1) and the baffle (2) are rotatably connected at the top; the hinge (3) is connected to the top of the furnace cleaning shovel (1) and the baffle (2); the lower end of the furnace cleaning shovel (1) extends out of the baffle (2); a shovel head plate (5) is welded to the lower end of the furnace cleaning shovel (1); a mounting hole (201) is provided on the baffle (2); and the front end of the support tube (7) is inserted into the mounting hole (201). The outer wall of the support tube (7) is welded to the mounting hole (201), the front end of the support tube (7) is flush with the side wall of the baffle (2) facing the furnace cleaning shovel (1), a support short tube (14) is welded on the side wall of the furnace cleaning shovel (1) facing the baffle (2), the support shaft (11) is slidably inserted in the support tube (7), the front end of the support shaft (11) is rotatably connected to the end of the support short tube (14) away from the furnace cleaning shovel (1), and the rear end of the support shaft (11) extends out of the support tube (7).

2. The aluminum alloy smelting furnace cleaning device according to claim 1, characterized in that: The invention comprises a support assembly, which comprises a fixing plate I (8), a fixing plate II (9) and a square tube (13). Two square tubes (13) are provided, and the two square tubes (13) are symmetrical. The fixing plate I (8) and the fixing plate II (9) are welded between the two square tubes (13). The fixing plate I (8) and the fixing plate II (9) are parallel. The fixing plate I (8) is arranged in front of the fixing plate II (9). The fixing plate I (8) is provided with a through hole I (801), and the fixing plate II (9) is provided with a through hole II (901). The through hole I (801) and the through hole II (901) are coaxial. The end of the support tube (7) away from the baffle (2) is inserted into the through hole I (801) and the through hole II (901). The outer wall of the support tube (7) is welded to the through hole I (801), and the outer wall of the support tube (7) is welded to the through hole II (901).

3. The aluminum alloy smelting furnace cleaning device according to claim 2, characterized in that: The support assembly comprises a fixing plate III (10), the fixing plate III (10) being welded between two square tubes (13), the fixing plate III (10) being parallel to the fixing plate II (9), the fixing plate III (10) being arranged behind the fixing plate II (9), the fixing plate III (10) being provided with a waist-shaped groove (1001), the rear end of the support shaft (11) being provided with a threaded portion (1102), the threaded portion (1102) extending out of the support tube (7), the threaded portion (1102) being inserted into the waist-shaped groove (1001), the threaded portion (1102) being connected to two nuts (12), the two nuts (12) being respectively connected to the two side walls of the fixing plate III (10).

4. The aluminum alloy smelting furnace cleaning device according to claim 3, characterized in that: The support short tube (14) is provided with a groove (1401) at one end away from the furnace cleaning shovel (1), and pin holes II (1402) are provided on both side walls of the groove (1401). The support shaft (11) is arranged between the side walls, and the front ends of the two support shafts (11) are provided with pin holes I (1101), the pin holes I (1101) are coaxial with the two pin holes II (1402), and pins (15) are inserted into the pin holes I (1101) and the two pin holes II (1402), and the two ends of the pin (15) extend out of the two pin holes II (1402), and elastic retaining rings (16) are connected to the two ends of the pin (15) extending out of the two pin holes II (1402), and the pin (15) is provided with a mounting groove for mounting the elastic retaining ring (16).

5. The aluminum alloy smelting furnace cleaning device according to claim 4, characterized in that: The outer diameter of the supporting short tube (14) is smaller than the inner diameter of the supporting tube (7), and the length of the pin shaft (15) is smaller than the inner diameter of the supporting tube (7).

6. The aluminum alloy smelting furnace cleaning device according to claim 5, characterized in that: The inner diameter of the front end of the support tube (7) is provided with a rounded corner (701).

7. The device for cleaning an aluminum alloy smelting furnace according to any one of claims 1 to 6, characterized in that: The lower end of the shovel head plate (5) is provided with a shovel head groove (6), and the shovel head groove (6) is linearly evenly distributed along the width direction of the shovel head plate (5).

8. The aluminum alloy smelting furnace cleaning device according to claim 7, characterized in that: The shovel head plate (5) is made of 42CrMo steel.

9. The aluminum alloy smelting furnace cleaning device according to claim 8, characterized in that: A reinforcement sleeve (4) is welded between the side wall of the baffle (2) facing away from the furnace cleaning shovel and the outer wall of the support tube (7).

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