Pretreatment device of crucible melting furnace

Abstract

The invention discloses a pretreatment device of a crucible melting furnace, and relates to the technical field of metal treatment.The pretreatment device comprises a furnace body and a heater, a pretreatment cleaning mechanism is arranged beside the furnace body and comprises a cleaning box, a covering plate, a first water conveying pipe, a moving assembly and a surface switching assembly, and spray heads are fixedly embedded in the inner wall of the covering plate at equal intervals; a pushing assembly matched with the moving assembly is arranged in the driving groove. Through the arrangement of the moving assemblies and the switching surface assembly, when a metal block is cleaned on the inner side of the cleaning box, the two moving assemblies cooperate with each other to act on the metal block to reciprocate on the inner side of the cleaning box, so that the surface of the metal block is more comprehensively cleaned by a spray head, and in the one-way movement process of the metal block, the surface of the metal block is more uniform. And the surface switching assembly can quickly turn over the metal block, so that the metal block is turned over, the other surface of the nozzle is conveniently cleaned, and the cleaning effect of the metal block is improved.

Description

Technical Field

[0001] The invention relates to the technical field of metal processing, in particular to a pre-processing device for a crucible melting furnace. Background Art

[0002] Metal melting furnace is one of the key equipments required for manufacturing metal parts. It has also developed rapidly in recent years. The new generation of melting furnace equipment with fast melting speed, corrosion resistance, high heat preservation, less oxidation, energy saving and environmental protection is being widely used by various manufacturers. Before melting the metal, the metal surface needs to be cleaned to avoid impurities in the metal during the melting process, which reduces the purity of the metal.

[0003] For this purpose, the prior art patent publication number CN204162797U is a pre-treatment device for a crucible melting furnace. The above patent utilizes the waste heat emitted by the melting furnace, saves energy and reduces production costs. The provision of sufficient water outlets can improve the coverage and cleaning effect of the cleaning liquid on the metal surface, and the provision of a cover plate can prevent the cleaning liquid from splashing out of the cleaning tank and injuring workers.

[0004] However, in the above patent, when cleaning metal, the cleaning liquid can only be output from the water outlet to the metal from top to bottom, and to a certain extent, only the upper surface of the metal can be well cleaned, while the lower surface of the metal contacting the inner wall of the bottom end of the cleaning tank is difficult to contact with the water and cannot be cleaned, so that it is necessary to manually open the cover regularly and turn the metal over in the cleaning tank in order to achieve a double-sided cleaning effect of the metal. The actual operation is time-consuming and labor-intensive, and the work efficiency is generally poor. Summary of the invention

[0005] In order to solve the above technical problems, a pretreatment device for a crucible melting furnace is provided, which solves the problem that in the prior art, when cleaning metal, the cleaning liquid can only be output from the water outlet to the metal from top to bottom, and to a certain extent, only the upper surface of the metal can be well cleaned, while the lower surface of the metal contacting the inner wall of the bottom end of the cleaning tank is difficult to contact with the water and cannot be cleaned, so that in the later stage, it is necessary to manually open the cover plate regularly and turn the metal over in the cleaning tank to achieve the double-sided cleaning effect of the metal. The actual operation is time-consuming and labor-intensive, and the work efficiency is generally poor.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a pre-treatment device for a crucible melting furnace, comprising a furnace body and a heater arranged on the inner wall of the bottom end of the furnace body, and a pre-treatment cleaning mechanism for cleaning metal blocks is arranged on the side of the furnace body;

[0007] The pre-treatment cleaning mechanism comprises a cleaning box with an open top arranged beside the furnace body, a cover plate attached to the open end of the cleaning box, a first water pipe arranged transversely above the cover plate, two groups of moving components symmetrically arranged inside the cleaning box, and a switching surface component arranged between the two groups of moving components, a plurality of nozzles fixedly connected to the first water pipe body are embedded in the inner wall of the cover plate at equal intervals, a connecting pipe is fixedly penetrated at the bottom of the cleaning box, and driving grooves are opened on the inner walls on both sides of the cleaning box, and a propulsion component matched with the moving component is arranged in the driving groove;

[0008] The moving assembly includes a mounting plate disposed transversely inside the cleaning box, two transmission rods symmetrically disposed on the mounting plate facing the middle of the cleaning box, and a first transmission belt connected between the two transmission rods.

[0009] The switching surface assembly includes a support plate vertically fixed to the middle of the bottom surface of the cleaning box and two guide racks distributed in a L-shaped front and rear mirror image on the front side of the support plate, a movable rod rotatably connected to the support plate is fixed through the middle of the guide rack, and the guide rack is located below the top surface of the first transmission belt, and a driving member for causing the two guide racks to rotate in opposite directions is arranged on the left side of the support plate;

[0010] The propulsion assembly includes a bidirectional screw rod which is laterally rotatably arranged between the inner walls on both sides of the driving groove and two nut seats which are symmetrically threadedly connected to the bidirectional screw rod body. The side of the mounting plate which is away from the middle part of the cleaning box is hinged with two figure-eight connecting rods, and the ends of the two connecting rods are respectively hinged to the two nut seats.

[0011] Preferably, a slanted triangular shaped positioning block is fixed to the top surface of the transverse section of the material guide rack, an angle is formed between the positioning block and the material guide rack, and the positioning block protrudes above the first transmission belt.

[0012] Preferably, the driving component includes two rotating plates symmetrically distributed front and back, a fixed rod fixed between the two rotating plates, and a mounting plate rotatably sleeved on the rod body of the fixed rod and fixedly connected to the inner wall of the bottom end of the cleaning box. The bottom ends of the two material guide racks are respectively hinged with push-pull rods between the two rotating plates, and the two push-pull rods are of different lengths.

[0013] Preferably, the driving member further comprises a servo motor mounted on a side surface of the mounting plate, and a second transmission belt is transmission-connected between an output shaft of the servo motor and a rod body of the fixing rod.

[0014] Preferably, two driven rods are symmetrically arranged on one side of the cleaning box, and a third transmission belt is connected between the two driven rods. One end of the driven rod rotates to penetrate into the driving groove and is fixedly connected to one end of the bidirectional screw, and the other end of one of the driven rods is fastened with a handle.

[0015] Preferably, a forward and reverse motor is installed on a side of the mounting plate away from the middle of the cleaning box, and the output shaft of the forward and reverse motor rotates through the mounting plate and is fixedly connected to the end of one of the transmission rods.

[0016] Preferably, a heating pipe located above the heater is also provided on the inner side of the furnace body, a water pump is provided below the cleaning box, one end of the heating pipe passes through the furnace body and is fixedly connected to the first water pipe by a first connecting pipe, the other end of the heating pipe passes through the furnace body and is fixedly connected to the output end of the water pump by a second connecting pipe, the absorption end of the water pump is fixedly connected to the second water pipe, and the end of the connecting pipe passes into the end of the second water pipe.

[0017] Preferably, cylinders are vertically mounted on both sides of the bottom surface of the cleaning box.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) Through the arrangement of the moving assembly and the switching surface assembly, when the metal block is being cleaned inside the cleaning box, the two groups of moving assemblies cooperate with each other to enable the metal block to reciprocate inside the cleaning box, so that the nozzle can more comprehensively clean the surface of the metal block. In addition, during the unidirectional movement of the metal block, the switching surface assembly can quickly flip the metal block, thereby turning the metal block over to facilitate cleaning of the other side of the nozzle, thereby improving the cleaning effect of the metal block.

[0020] (2) By setting the propulsion assembly, the two bidirectional screws in the two propulsion assemblies are caused to rotate, and the two nut seats on the bidirectional screw rods can slide toward each other under the threaded structure, and the connecting rod pushes and pulls the mounting plate, the transmission rod and the first transmission belt as a whole, thereby adjusting the distance between the two sets of moving assemblies to facilitate the placement of metal blocks of different sizes between the two sets of moving assemblies, thereby enhancing the practicality and applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the internal structure of the furnace body of the present invention;

[0023] Figure 3 This is a schematic diagram of the structure of the pre-treatment cleaning mechanism of the present invention;

[0024] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at A in the middle;

[0025] Figure 5 This is a schematic diagram of the internal structure of the drive slot of the present invention;

[0026] Figure 6 It is a schematic diagram of the internal structure of the cleaning box of the present invention.

[0027] The numbers in the figure are:

[0028] 1. Furnace body; 2. Heater; 3. Cleaning box; 4. Cover plate; 5. First water pipe; 6. Nozzle; 7. Heating pipe; 8. First connecting pipe; 9. Water pump; 10. Second water pipe; 11. Connecting pipe; 12. Second connecting pipe; 13. Cylinder; 14. Mounting plate; 15. Transmission rod; 16. First transmission belt; 17. Forward and reverse motor; 18. Support plate; 19. Material guide rack; 20. Positioning block; 21. Movable rod; 22. Rotating plate; 23. Mounting plate; 24. Fixed rod; 25. Push-pull rod; 26. Servo motor; 27. Second transmission belt; 28. Driving slot; 29. ​​Bidirectional screw; 30. Nut seat; 31. Connecting rod; 32. Follower rod; 33. Third transmission belt; 34. Handle. DETAILED DESCRIPTION

[0029] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0030] Reference Figure 1-6 As shown, a pre-treatment device for a crucible melting furnace comprises a furnace body 1 and a heater 2 arranged on the inner wall of the bottom end of the furnace body 1;

[0031] When in use, a crucible containing a molten metal block is placed inside the furnace body 1 in advance so that the bottom of the crucible contacts the heater 2 , and then the heater 2 is turned on, so that the heater 2 can continuously heat the crucible and melt the metal block inside the crucible.

[0032] Further, refer to Figure 1 As shown, it is worth noting that a pre-treatment cleaning mechanism for cleaning metal blocks is provided on the side of the furnace body 1;

[0033] The pre-treatment cleaning mechanism comprises a cleaning box 3 with an open top arranged on the side of the furnace body 1, a cover plate 4 attached to the open end of the cleaning box 3, and a first water pipe 5 arranged transversely above the cover plate 4. A plurality of nozzles 6 fixedly connected to the pipe body of the first water pipe 5 are embedded in the inner wall of the cover plate 4 at equal intervals, and a connecting pipe 11 is fixedly penetrated at the bottom of the cleaning box 3.

[0034] Before the metal is melted, the cleaning box 3 is separated from the covering plate 4 in advance so that the inside of the cleaning box 3 is exposed to the outside, that is, it is convenient to put the metal block into the inside of the cleaning box 3, and then pass water into the inside of the first water pipe 5. The water is output to the metal block by the nozzle 6, and then the impurities on the surface of the metal block are cleaned, so as to avoid the presence of impurities in the metal during the smelting process and reduce the purity of the molten metal.

[0035] However, when cleaning metal, the cleaning liquid can only be output from the nozzle 6 to the metal from top to bottom, and to a certain extent, only the upper surface of the metal can be well cleaned, while the lower surface of the metal that contacts the inner wall of the bottom end of the cleaning box 3 is difficult to contact with the water and cannot be cleaned, so that later it is necessary to manually open the cover plate 4 regularly and turn the metal in the cleaning box 3 to achieve the double-sided cleaning effect of the metal. The actual operation is time-consuming and labor-intensive, and the work efficiency is generally poor;

[0036] For this purpose, refer to Figure 3-6 As shown, it is worth noting that the pre-treatment cleaning mechanism also includes two groups of moving components symmetrically arranged inside the cleaning box 3 and a switching surface component arranged between the two groups of moving components;

[0037] Through the arrangement of the moving component and the switching surface component, when the metal block is performing a cleaning operation inside the cleaning box 3, the two groups of moving components cooperate with each other to cause the metal block to reciprocate inside the cleaning box 3, so that the nozzle 6 can clean the surface of the metal block more comprehensively, and during the unidirectional movement of the metal block, the switching surface component can quickly flip the metal block, and then turn the metal block over to facilitate cleaning of the other side of the nozzle 6, thereby improving the cleaning effect of the metal block.

[0038] Specifically, refer to Figure 5 and Figure 6 As shown, it is worth noting that the moving assembly includes a mounting plate 14 disposed laterally inside the cleaning box 3, two transmission rods 15 symmetrically disposed on the mounting plate 14 and rotatably disposed on one side of the mounting plate 14 facing the middle of the cleaning box 3, and a first transmission belt 16 connected between the two transmission rods 15, and a forward and reverse motor 17 is mounted on one side of the mounting plate 14 away from the middle of the cleaning box 3, and the output shaft of the forward and reverse motor 17 rotates through the mounting plate 14 and is fixedly connected to the end of one of the transmission rods 15;

[0039] When placing the metal block, the operator needs to pay attention to placing the metal block horizontally between the top surfaces of the first transmission belts 16 in the two sets of moving components, so that the two sets of first transmission belts 16 can effectively carry the metal block, and then turn on the forward and reverse motors 17 in the two sets of moving components. The output shaft of the forward and reverse motor 17 drives one of the transmission rods 15 to rotate intermittently, and then drives the first transmission belt 16 to rotate back and forth, so that the metal block moves back and forth inside the cleaning box 3, thereby improving the cleaning effect of the nozzle 6 on the surface of the metal block.

[0040] Further, refer to Figure 5 and Figure 6 As shown, it is worth noting that the switching surface assembly includes a support plate 18 vertically fixed to the middle of the bottom surface of the cleaning box 3 and two guide racks 19 distributed in front of the support plate 18 in a L-shaped front and rear mirror image, a movable rod 21 rotatably connected to the support plate 18 is fixedly penetrated in the middle of the guide rack 19, and the guide rack 19 is located below the top surface of the first transmission belt 16, and a driving member for causing the two guide racks 19 to rotate in opposite directions is provided on the left side of the support plate 18;

[0041] A slanted triangle-shaped positioning block 20 is fixed to the top surface of the transverse section of the guide frame 19. There is an angle between the positioning block 20 and the guide frame 19, and the positioning block 20 protrudes above the first transmission belt 16.

[0042] When the first transmission belt 16 acts on the metal block to move from one side of the cleaning box 3 to the center of the cleaning box 3, the nozzle 6 can wash the corresponding side of the metal block in the process;

[0043] Until the metal block contacts the positioning block 20 on one of the guide racks 19, the positioning block 20 can block the metal block, so that the metal block is blocked within the angle between the positioning block 20 and the guide rack 19, and then the driving member acts on the two guide racks 19 to turn upward synchronously, so that the metal block is sent from one guide rack 19 to the other guide rack 19 during the rotation process, and the other guide rack 19 receives the metal block;

[0044] Then the driving component causes the two groups of guide racks 19 to flip downward synchronously, and then the guide rack 19 with the metal block rotates downward, and the metal block is placed on the first transmission belt 16 again, so that the metal block is turned over, so that the other side of the metal block can be cleaned in the process of further moving with the first transmission belt 16.

[0045] Further, refer to Figure 6 As shown, it is worth noting that the driving member includes two rotating pieces 22 symmetrically distributed front and back, a fixed rod 24 fixed between the two rotating pieces 22, and a mounting piece 23 rotatably sleeved on the rod body of the fixed rod 24 and fixedly connected to the inner wall of the bottom end of the cleaning box 3. The bottom ends of the two guide racks 19 are respectively hinged with push-pull rods 25 between the two rotating pieces 22, and the two push-pull rods 25 are of different lengths.

[0046] The driving member further comprises a servo motor 26 mounted on the side of the mounting plate 23, and a second transmission belt 27 is connected between the output shaft of the servo motor 26 and the rod body of the fixing rod 24;

[0047] The servo motor 26 is turned on, so that the output shaft of the servo motor 26 is driven by the second transmission belt 27 to rotate the fixed rod 24 and the rotating plate 22 clockwise for one circle, so that the rotating plate 22 is first pushed by the push-pull rod 25 to rotate the guide frame 19 upward, and then pulls the guide frame 19 downward to return to rotation.

[0048] In addition, refer to Figure 5 As shown, it is worth noting that a driving groove 28 is provided on the inner wall of both sides of the cleaning box 3, and a propulsion component cooperating with the moving component is provided in the driving groove 28;

[0049] The propulsion assembly includes a bidirectional screw 29 which is rotatably arranged between the inner walls of both sides of the driving groove 28 and two nut seats 30 which are symmetrically threadedly connected to the rod of the bidirectional screw 29. The side of the mounting plate 14 which is away from the middle of the cleaning box 3 is hinged with two connecting rods 31 in an eight-shaped shape, and the ends of the two connecting rods 31 are respectively hinged with the two nut seats 30;

[0050] By setting the propulsion assembly, the bidirectional screws 29 in the two sets of propulsion assemblies are caused to rotate, and the two nut seats 30 on the rod body of the bidirectional screw 29 can slide towards each other under the threaded structure, and the connecting rod 31 pushes and pulls the mounting plate 14, the transmission rod 15 and the first transmission belt 16 as a whole, thereby adjusting the distance between the two sets of moving assemblies to facilitate the placement of metal blocks of different sizes between the two sets of moving assemblies.

[0051] Further, refer to Figure 5 As shown, it is worth noting that two driven rods 32 are symmetrically arranged on one side of the cleaning box 3, and a third transmission belt 33 is transmission-connected between the two driven rods 32, and one end of the driven rod 32 rotates to penetrate into the driving groove 28 and is fixedly connected to one end of the bidirectional screw 29;

[0052] The other end of one of the driven rods 32 is tightly sleeved with a handle 34;

[0053] The knob handle 34 acts to rotate one of the driven rods 32. When the driven rod 32 rotates, the third transmission belt 33 can drive another driven rod 32, so that the bidirectional screw rods 29 in the two push-pull components rotate synchronously, thereby synchronously shifting the two moving components.

[0054] Further, refer to Figure 1 and Figure 2 As shown, it is worth noting that a heating pipe 7 located above the heater 2 is further provided on the inner side of the furnace body 1, a water pump 9 is provided below the cleaning box 3, one end of the heating pipe 7 passes through the furnace body 1 and is fixedly connected to the first water pipe 5 by a first connecting pipe 8, the other end of the heating pipe 7 passes through the furnace body 1 and is fixedly connected to the output end of the water pump 9 by a second connecting pipe 12, the absorption end of the water pump 9 is fixedly connected to the second water pipe 10, and the end of the connecting pipe 11 passes into the end of the second water pipe 10;

[0055] When the crucible is placed on the heater 2, the crucible can also be inserted into the inner side of the heating tube 7, so that the outer wall of the crucible contacts the inner wall of the heating tube 7, so that when the crucible is heated, the heating tube 7 is heated synchronously, and then the water pump 9 is turned on. The water pump 9 can draw water from the bottom of the inner side of the cleaning box 3 through the second water pipe 10 and the connecting pipe 11, and inject the water into the inner side of the heating tube 7, the first water pipe 5 and the nozzle 6 through the second connecting pipe 12. When the water flows through the inner side of the heating tube 7, the water is heated and heated. Then, when the heated water is output from the nozzle 6 to the inner side of the cleaning box 3, the warm water can further improve the cleaning effect of the oil stains on the metal surface while washing away the impurities on the metal surface.

[0056] Further, refer to Figure 1 As shown, it is worth noting that cylinders 13 are vertically installed on both sides of the bottom surface of the cleaning box 3;

[0057] Through the setting of the cylinder 13, after the metal is cleaned inside the cleaning box 3, the cylinder 13 is immediately opened, so that the cleaning box 3 is quickly moved down and separated from the covering plate 4, so that the inside of the cleaning box 3 can be exposed to the outside, thereby facilitating manual access to the metal inside the cleaning box 3.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A pretreatment device for a crucible melting furnace, comprising a furnace body (1) and a heater (2) arranged on the inner wall of the bottom end of the furnace body (1), It is characterized in that A pre-treatment cleaning mechanism for cleaning metal blocks is arranged on the side of the furnace body (1); The pre-treatment cleaning mechanism comprises a cleaning box (3) with an open top arranged on the side of the furnace body (1), a cover plate (4) attached to the open end of the cleaning box (3), a first water pipe (5) arranged transversely above the cover plate (4), two groups of moving components symmetrically arranged inside the cleaning box (3), and a switching surface component arranged between the two groups of moving components, a plurality of nozzles (6) fixedly connected to the pipe body of the first water pipe (5) are fixedly embedded in the inner wall of the cover plate (4) at equal intervals, a connecting pipe (11) is fixedly penetrated through the bottom of the cleaning box (3), and driving grooves (28) are opened on the inner walls of both sides of the cleaning box (3), and a propulsion component cooperating with the moving component is arranged in the driving groove (28); The moving assembly comprises a mounting plate (14) disposed transversely inside the cleaning box (3), two transmission rods (15) symmetrically disposed on the mounting plate (14) and oriented toward the middle of the cleaning box (3), and a first transmission belt (16) connected between the two transmission rods (15); The switching surface assembly comprises a support plate (18) vertically fixed to the middle of the bottom surface of the cleaning box (3) and two guide racks (19) distributed in a front and rear mirror image in a similar L shape on the front side of the support plate (18), a movable rod (21) rotatably connected to the support plate (18) is fixedly passed through the middle of the guide rack (19), and the guide rack (19) is located below the top surface of the first transmission belt (16), and a driving component for causing the two guide racks (19) to rotate in opposite directions is arranged on the left side of the support plate (18); The propulsion assembly comprises a bidirectional screw (29) which is laterally rotatably arranged between the inner walls on both sides of the driving groove (28) and two nut seats (30) which are symmetrically threadedly connected to the rod body of the bidirectional screw (29); two connecting rods (31) in an eight-shaped shape are hingedly connected to a side of the mounting plate (14) which faces away from the middle of the cleaning box (3); and the ends of the two connecting rods (31) are respectively hingedly connected to the two nut seats (30).

2. A pre-treatment device for a crucible melting furnace according to claim 1, It is characterized in that A slanted triangular shaped positioning block (20) is fixed to the top surface of the transverse section of the material guide frame (19), an angle is formed between the positioning block (20) and the material guide frame (19), and the positioning block (20) protrudes above the first transmission belt (16).

3. The pretreatment device for a crucible melting furnace according to claim 1, It is characterized in that The driving component comprises two rotating plates (22) symmetrically distributed front and back, a fixing rod (24) fixed between the two rotating plates (22), and a mounting plate (23) rotatably sleeved on the rod body of the fixing rod (24) and fixedly connected to the inner wall of the bottom end of the cleaning box (3); the bottom ends of the two material guide racks (19) are respectively hinged with push-pull rods (25) between the two rotating plates (22); the two push-pull rods (25) are of different lengths.

4. A pre-treatment device for a crucible melting furnace according to claim 3, It is characterized in that The driving component also includes a servo motor (26) mounted on the side of the mounting plate (23), and a second transmission belt (27) is connected in transmission between the output shaft of the servo motor (26) and the rod body of the fixing rod (24).

5. The pre-treatment device for a crucible melting furnace according to claim 1, It is characterized in that Two driven rods (32) are symmetrically arranged on one side of the cleaning box (3), and a third transmission belt (33) is connected between the two driven rods (32). One end of the driven rod (32) rotates and penetrates into the driving groove (28) and is fixedly connected to one end of the bidirectional screw (29), and the other end of one of the driven rods (32) is tightly sleeved with a handle (34).

6. The pretreatment device for a crucible melting furnace according to claim 1, It is characterized in that A forward and reverse motor (17) is installed on one side of the mounting plate (14) away from the middle of the cleaning box (3); an output shaft of the forward and reverse motor (17) rotates through the mounting plate (14) and is fixedly connected to the end of one of the transmission rods (15).

7. The pretreatment device for a crucible melting furnace according to claim 1, It is characterized in that A heating pipe (7) located above the heater (2) is also provided on the inner side of the furnace body (1), and a water pump (9) is provided below the cleaning box (3). One end of the heating pipe (7) passes through the furnace body (1) and is fixedly connected to the first water pipe (5) via a first connecting pipe (8). The other end of the heating pipe (7) passes through the furnace body (1) and is fixedly connected to the output end of the water pump (9) via a second connecting pipe (12). The absorption end of the water pump (9) is fixedly connected to the second water pipe (10), and the end of the connecting pipe (11) passes into the end of the second water pipe (10).

8. The pre-treatment device for a crucible melting furnace according to claim 1, It is characterized in that Cylinders (13) are vertically mounted on both sides of the bottom surface of the cleaning box (3).

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