Aluminium cast-rolling and spraying apparatus

Abstract

A coating device for aluminum casting and rolling emulsion, relating to the technical field of aluminum casting and rolling equipment, includes a casting and rolling roll assembly, an upper coating unit, and a lower coating unit. The upper coating unit coats the surface of the upper casting and rolling rolls with casting emulsion, and the lower coating unit coats the surface of the lower casting and rolling rolls with casting emulsion. A drive unit is connected to both the upper and lower coating units to drive them to reciprocate along the length of the upper and lower casting and rolling rolls. A mixing unit mixes and stores the casting emulsion to be coated. The input end of a conveying unit is connected to the mixing unit, and the output end is connected to both the upper and lower coating units to convey the casting emulsion to them. A gas supply system is connected to both the upper and lower coating units to supply high-pressure gas that provides the driving force for spraying the casting emulsion. This invention eliminates environmental pollution and improves safety.

Description

Technical Field

[0001] This utility model relates to the technical field of aluminum casting and rolling equipment, and specifically to an aluminum casting and rolling emulsion spraying equipment. Background Technology

[0002] In the field of aluminum casting and rolling, aluminum casting and rolling mills are used to roll molten aluminum into aluminum plates. During the processing, because the molten aluminum and the rolls are in direct contact, the phenomenon of molten aluminum sticking to the rolls is prone to occur. To prevent the rolls from sticking, liquefied petroleum gas (LPG) is usually used as a raw material. The LPG is partially combusted by a flame spraying device, and a layer of carbon powder with a lubricating effect is applied to the surface of the rolls.

[0003] However, the incomplete combustion of liquefied gas in the above-mentioned flame spraying process causes black pollution to the environment, and the above-mentioned process also poses safety hazards. Utility Model Content

[0004] This invention addresses the aforementioned technical problems in the prior art by providing an aluminum casting roll emulsion spraying device. This device sprays casting roll emulsion onto the surface of the casting roll, solving the environmental pollution problem of the flame spraying method and improving safety.

[0005] To achieve the above technical objectives, this utility model provides an aluminum casting and rolling emulsion spraying equipment, comprising:

[0006] A casting roll assembly includes an upper casting roll and a lower casting roll arranged in parallel and adjacent positions, wherein the outer surfaces of the upper casting roll and the lower casting roll have a roll gap through which the rolled material passes;

[0007] The upper spraying unit is used to spray casting emulsion onto the surface of the upper casting roll, and the lower spraying unit is used to spray casting emulsion onto the surface of the lower casting roll.

[0008] A drive unit is connected to the upper spraying unit and the lower spraying unit respectively, and is used to drive the upper spraying unit and the lower spraying unit to reciprocate along the length direction of the upper casting roll and the lower casting roll;

[0009] A mixing unit for mixing and storing cast-rolled emulsion to be sprayed;

[0010] A conveying unit, whose input end is connected to the mixing unit and whose output end is connected to the upper spraying unit and the lower spraying unit respectively, is used to convey cast-rolled molten steel to the upper spraying unit and the lower spraying unit; and

[0011] A gas supply system is connected to the upper spraying unit and the lower spraying unit respectively, and is used to supply high-pressure gas to the upper spraying unit and the lower spraying unit to provide driving force for the jet casting and rolling.

[0012] In some embodiments, the upper spraying unit includes a first spray gun and a second spray gun that are spaced apart in the vertical direction;

[0013] The conveying unit is connected to the first spray gun and the second spray gun respectively, and is used to convey casting slurry to the first spray gun and the second spray gun.

[0014] The gas supply system is connected to the first spray gun and the second spray gun respectively, and is used to supply high-pressure gas to the first spray gun and the second spray gun to provide the power for jet casting and rolling.

[0015] In some embodiments, the lower spraying unit includes a third spray gun and a fourth spray gun spaced apart in the vertical direction;

[0016] The conveying unit is connected to the third spray gun and the fourth spray gun respectively, and is used to convey casting slurry to the third spray gun and the fourth spray gun;

[0017] The gas supply system is connected to the third and fourth spray guns respectively, and is used to supply high-pressure gas to the third and fourth spray guns to provide the power for jet casting and rolling.

[0018] In some embodiments, the driving unit includes a first linear guide rail and a second linear guide rail.

[0019] The first linear guide rail is connected to the upper spraying unit and is used to push the upper spraying unit to reciprocate along the length direction of the upper casting roll;

[0020] The second linear guide is connected to the lower spraying unit and is used to push the lower spraying unit to reciprocate along the length direction of the lower casting roll.

[0021] In some embodiments, a control unit is further included, which is signal-connected to the first linear guide and the second linear guide respectively to control the reciprocating motion of the first linear guide and the second linear guide.

[0022] In some embodiments, the delivery unit includes a first metering pump and a second metering pump;

[0023] The first metering pump is connected to the first spray gun and the second spray gun respectively, and is used to deliver cast molten oil to the first spray gun and the second spray gun.

[0024] The second metering pump is connected to the third and fourth spray guns respectively, and is used to deliver casting slurry to the third and fourth spray guns.

[0025] In some embodiments, the gas supply system includes an air compressor, a solenoid valve, and a pressure regulating filter. The output of the air compressor is connected to the solenoid valve, the solenoid valve is connected to the pressure regulating filter, and the pressure regulating filter is connected to the upper spraying unit and the lower spraying unit, respectively.

[0026] In some embodiments, a support rod is further included, the support rod having a smooth outer surface, and the extension direction of the support rod being the same as the extension direction of the upper casting roll and the lower casting roll;

[0027] The delivery pipe for supplying gas or cast emulsion to the upper and lower spraying units is spirally wound around the support rod.

[0028] In some embodiments, the mixing unit includes a water tank, a working tank, and at least one medicine tank, wherein the water tank and the medicine tank are respectively connected to the working tank via a delivery pump.

[0029] In some embodiments, the conveying unit is connected to the working tank in the mixing unit, and at least two pre-filters are connected in parallel between the working tank and the conveying unit.

[0030] One or more technical solutions provided in the embodiments of this utility model have at least the following technical effects or advantages: This utility model adopts a process of spraying cast-rolled emulsion onto the upward and downward casting rolls, replacing the traditional flame spraying process, eliminating environmental pollution and improving safety. The aluminum cast-rolled emulsion spraying equipment of this utility model can reduce carbon emissions by more than 90%, maintain the cleanliness of equipment and plant, save 20% in costs compared to the flame spraying method, and increase rolling speed by 20%. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of an aluminum casting and rolling emulsion spraying system according to an embodiment of the present invention.

[0032] Figure 2 This is an installation structure diagram of the upper and lower spraying units of an aluminum casting and rolling emulsion spraying equipment according to an embodiment of the present invention.

[0033] Figure 3 for Figure 2 Front view.

[0034] Figure 4 This is a structural diagram of an aluminum casting and rolling emulsion spraying equipment according to another embodiment of the present invention, which includes the connection structure of the support rod and the conveying pipe.

[0035] Figure 5 This is a schematic diagram of the mixing unit in an aluminum casting, rolling, and spraying equipment according to an embodiment of the present invention.

[0036] Explanation of reference numerals in the attached figures

[0037] 10. Casting roll assembly; 11. Upper casting roll; 12. Lower casting roll; 13. Roll gap;

[0038] 20. Upper spraying unit; 21. First spray gun; 22. Second spray gun;

[0039] 30. Lower spraying unit; 31. Third spray gun; 32. Fourth spray gun;

[0040] 40. Drive unit; 41. First linear guide rail; 42. Second linear guide rail;

[0041] 50. Control unit;

[0042] 60. Conveying unit; 61. First metering pump; 62. Second metering pump;

[0043] 70. Mixing unit; 71. Water tank; 72. First chemical tank; 73. First transfer pump; 74. Second chemical tank; 75. Second transfer pump; 76. Third transfer pump; 77. Working tank; 78. First pre-filter; 79. Second pre-filter;

[0044] 80. Gas supply system; 81. Air compressor; 82. Solenoid valve; 83. Pressure regulating filter;

[0045] 91. Support rod; 92. Conveying pipe. Detailed Implementation

[0046] Other objects and advantages of this invention will become clear by explaining the following preferred embodiments.

[0047] like Figure 1 As shown, an aluminum casting and rolling emulsion spraying device includes a casting and rolling roll group 10, comprising an upper casting and rolling roll 11 and a lower casting and rolling roll 12 arranged parallel and adjacent to each other. A roll gap 13 for the passage of rolled material is formed between the outer surfaces of the upper and lower casting and rolling rolls 11 and 12. The rolled material, such as aluminum, is formed into a sheet after passing through the roll gap 13. During processing, because the molten aluminum and the rolls are in direct contact, aluminum molten material tends to stick to the rolls. This invention employs a process of spraying casting and rolling emulsion onto the upper casting and rolling rolls 11 and 12, replacing the traditional flame spraying process, eliminating environmental pollution and improving safety.

[0048] This utility model includes an upper spraying unit 20 and a lower spraying unit 30. The upper spraying unit 20 is used to spray casting emulsion onto the surface of the upward casting roll 11, and the lower spraying unit 30 is used to spray casting emulsion onto the surface of the downward casting roll 12.

[0049] In some embodiments, the upper spraying unit 20 includes a first spray gun 21 and a second spray gun 22 spaced apart in the vertical direction; a conveying unit 60 is connected to the first spray gun 21 and the second spray gun 22 respectively, for conveying cast molten material to the first spray gun 21 and the second spray gun 22; a gas supply system 80 is connected to the first spray gun 21 and the second spray gun 22 respectively, for conveying high-pressure gas to the first spray gun 21 and the second spray gun 22 to provide the power for spraying the cast molten material. The first spray gun 21 and the second spray gun 22 can work alternately, either when the spray gun is blocked by the cast molten material or when they work simultaneously. In some embodiments, the distance between the front end of the first spray gun 21 and the second spray gun 22 and the outer surface of the upper casting roller 11 is 200-250 mm.

[0050] In some embodiments, the lower spraying unit 30 includes a third spray gun 31 and a fourth spray gun 32 spaced apart in the vertical direction; a conveying unit 60 is connected to the third spray gun 31 and the fourth spray gun 32 respectively, for conveying casting slurry to the third spray gun 31 and the fourth spray gun 32; a gas supply system 80 is connected to the third spray gun 31 and the fourth spray gun 32 respectively, for conveying high-pressure gas to the third spray gun 31 and the fourth spray gun 32 to provide power for spraying casting slurry. The third spray gun 31 and the fourth spray gun 32 can operate alternately; when one spray gun is blocked, the other spray gun can be turned on to clean the blocked spray gun. The third spray gun 31 and the fourth spray gun 32 can also operate simultaneously. In some embodiments, the distance between the front end of the third spray gun 31 and the fourth spray gun 32 and the outer surface of the lower casting roll 12 is 200-250 mm.

[0051] The drive unit 40 is connected to the upper spraying unit 20 and the lower spraying unit 30 respectively, and is used to drive the upper spraying unit 20 and the lower spraying unit 30 to reciprocate along the length direction of the upper casting roll 11 and the lower casting roll 12.

[0052] In some embodiments, the drive unit 40 includes a first linear guide rail 41 and a second linear guide rail 42. The first linear guide rail 41 is connected to the upper spraying unit 20 and is used to push the upper spraying unit 20 to reciprocate along the length direction of the upper casting roll 11. The second linear guide rail 42 is connected to the lower spraying unit 30 and is used to push the lower spraying unit 30 to reciprocate along the length direction of the lower casting roll 12. This invention uses the first linear guide rail 41 and the second linear guide rail 42 to respectively push the upper spraying unit 20 and the lower spraying unit 30 to reciprocate, thereby achieving surface spraying within the length range of the upper casting roll 11 and the lower casting roll 12 with a small number of spray nozzles, and uniformly spraying the casting emulsion onto the surfaces of the upper casting roll 11 and the lower casting roll 12.

[0053] The mixing unit 70 is used to mix and store the cast-rolled emulsion to be sprayed. In some embodiments, the mixing unit 70 includes a water tank 71, a working tank 77, and at least one chemical tank, wherein the water tank 71 and the chemical tank are respectively connected to the working tank 77 via a delivery pump. For example, as... Figure 5 As shown, the mixing unit 70 includes two medicine containers, namely the first medicine container 72 and the second medicine container 74, which are used to store different medicines respectively.

[0054] In this embodiment, water tank 71 and working tank 77 are connected by a first transfer pump 73, which pumps water from water tank 71 into working tank 77. First medicine tank 72 and working tank 77 are connected by a second transfer pump 75, which pumps medicine from first medicine tank 72 into working tank 77. Second medicine tank 74 and working tank 77 are connected by a third transfer pump 76, which pumps medicine from second medicine tank 74 into working tank 77. In working tank 77, water and various medicines are mixed and stirred to obtain a casting emulsion.

[0055] The input end of the conveying unit 60 is connected to the mixing unit 70, and the output end is connected to the upper spraying unit 20 and the lower spraying unit 30 respectively, for conveying cast-rolled emulsion to the upper spraying unit 20 and the lower spraying unit 30. In some embodiments, the conveying unit 60 includes a first metering pump 61 and a second metering pump 62; the first metering pump 61 is connected to the first spray gun 21 and the second spray gun 22 respectively, for conveying cast-rolled emulsion to the first spray gun 21 and the second spray gun 22; the second metering pump 62 is connected to the third spray gun 31 and the fourth spray gun 32 respectively, for conveying cast-rolled emulsion to the third spray gun 31 and the fourth spray gun 32.

[0056] In some embodiments, the conveying unit 60 is connected to the working tank 77 in the mixing unit 70, and at least two pre-filters are connected in parallel between the working tank 77 and the conveying unit 60. Figure 5 As shown, in this embodiment, two pre-filters, namely the first pre-filter 78 and the second pre-filter 79, are connected in parallel between the first metering pump 61, the second metering pump 62, and the working tank 77. The two pre-filters serve as backups for each other, and the clogged pre-filters can be backwashed online by adjusting the valve switches in the pipeline.

[0057] The gas supply system 80 is connected to the upper spraying unit 20 and the lower spraying unit 30 respectively, and is used to supply high-pressure gas to the upper spraying unit 20 and the lower spraying unit 30 to provide driving force for the jet casting and rolling. In some embodiments, the gas supply system 80 includes an air compressor 81, a solenoid valve 82 and a pressure regulating filter 83. The output end of the air compressor 81 is connected to the solenoid valve 82, the solenoid valve 82 is connected to the pressure regulating filter 83, and the pressure regulating filter 83 is connected to the upper spraying unit 20 and the lower spraying unit 30 respectively.

[0058] In some embodiments, a control unit 50 is further included. The control unit 50 is signal-connected to the first linear guide rail 41 and the second linear guide rail 42 respectively to control the reciprocating motion of the first linear guide rail 41 and the second linear guide rail 42. The control unit 50 may be, for example, a PLC.

[0059] In some embodiments, a support rod 91 is further included. The support rod 91 has a smooth outer surface, and its extension direction is the same as that of the upper casting roll 11 and the lower casting roll 12. A delivery pipe 92 for conveying gas or casting emulsion to the upper spraying unit 20 and the lower spraying unit 30 is spirally wound around the support rod 91. When the upper spraying unit 20 and the lower spraying unit 30 reciprocate, the support rod 91 can support the delivery pipe 92, preventing it from sagging and rubbing against the ground or other surfaces, thus avoiding damage.

[0060] The aluminum casting, rolling, and spraying equipment of this utility model has been described in detail with reference to the preferred technical solution. However, it should be noted that, without departing from the spirit of this utility model, those skilled in the art can make any modifications, alterations, and variations based on the above disclosure. This utility model includes the above-described specific embodiments and any equivalent forms.

Claims

1. An aluminum cast and roll milk spray coating apparatus characterized by, include: The casting roll assembly (10) includes an upper casting roll (11) and a lower casting roll (12) arranged in parallel and adjacent positions, with a roll gap (13) between the outer surfaces of the upper casting roll (11) and the lower casting roll (12) for passing through the rolled material. The upper spraying unit (20) and the lower spraying unit (30) are used to spray casting emulsion onto the surface of the upper casting roll (11) and the lower spraying unit (30) is used to spray casting emulsion onto the surface of the lower casting roll (12). The drive unit (40) is connected to the upper spraying unit (20) and the lower spraying unit (30) respectively, and is used to drive the upper spraying unit (20) and the lower spraying unit (30) to reciprocate along the length direction of the upper casting roll (11) and the lower casting roll (12); A mixing unit (70) is used to mix and store the cast-rolled emulsion to be sprayed; A conveying unit (60), whose input end is connected to the mixing unit (70) and whose output end is connected to the upper spraying unit (20) and the lower spraying unit (30) respectively, is used to convey cast-rolled molten steel to the upper spraying unit (20) and the lower spraying unit (30); and The gas supply system (80) is connected to the upper spraying unit (20) and the lower spraying unit (30) respectively, and is used to supply high-pressure gas to the upper spraying unit (20) and the lower spraying unit (30) to provide the driving force for the jet casting and rolling.

2. The aluminum casting and rolling emulsion spraying equipment as described in claim 1, characterized in that, The upper spraying unit (20) includes a first spray gun (21) and a second spray gun (22) arranged at intervals in the vertical direction. The conveying unit (60) is connected to the first spray gun (21) and the second spray gun (22) respectively, and is used to convey the cast molten slurry to the first spray gun (21) and the second spray gun (22); The gas supply system (80) is connected to the first spray gun (21) and the second spray gun (22) respectively, and is used to supply high-pressure gas to the first spray gun (21) and the second spray gun (22) to provide the power for jet casting and rolling.

3. The aluminum casting and rolling emulsion spraying equipment as described in claim 2, characterized in that, The lower spraying unit (30) includes a third spray gun (31) and a fourth spray gun (32) arranged at intervals in the vertical direction. The conveying unit (60) is connected to the third spray gun (31) and the fourth spray gun (32) respectively, and is used to convey casting molten oil to the third spray gun (31) and the fourth spray gun (32); The gas supply system (80) is connected to the third spray gun (31) and the fourth spray gun (32) respectively, and is used to supply high-pressure gas to the third spray gun (31) and the fourth spray gun (32) to provide the power for jet casting and rolling.

4. The aluminum casting and rolling emulsion spraying equipment as described in claim 1, characterized in that, The drive unit (40) includes a first linear guide rail (41) and a second linear guide rail (42). The first linear guide (41) is connected to the upper spraying unit (20) and is used to push the upper spraying unit (20) to reciprocate along the length direction of the upper casting roll (11); The second linear guide (42) is connected to the lower spraying unit (30) and is used to push the lower spraying unit (30) to reciprocate along the length direction of the lower casting roll (12).

5. The aluminum casting and rolling emulsion spraying equipment as described in claim 4, characterized in that, It also includes a control unit (50), which is connected to the first linear guide (41) and the second linear guide (42) respectively to control the reciprocating motion of the first linear guide (41) and the second linear guide (42).

6. The aluminum casting and rolling emulsion spraying equipment as described in claim 3, characterized in that, The conveying unit (60) includes a first metering pump (61) and a second metering pump (62). The first metering pump (61) is connected to the first spray gun (21) and the second spray gun (22) respectively, and is used to deliver cast molten slurry to the first spray gun (21) and the second spray gun (22); The second metering pump (62) is connected to the third spray gun (31) and the fourth spray gun (32) respectively, and is used to deliver cast molten slurry to the third spray gun (31) and the fourth spray gun (32).

7. The aluminum casting and rolling emulsion spraying equipment as described in claim 1, characterized in that, The gas supply system (80) includes an air compressor (81), a solenoid valve (82) and a pressure regulating filter (83). The output end of the air compressor (81) is connected to the solenoid valve (82), the solenoid valve (82) is connected to the pressure regulating filter (83), and the pressure regulating filter (83) is connected to the upper spraying unit (20) and the lower spraying unit (30) respectively.

8. The aluminum cast and roll milk spray coating apparatus of claim 1, wherein, It also includes a support rod (91) having a smooth outer surface, and the extension direction of the support rod (91) is the same as the extension direction of the upper casting roll (11) and the lower casting roll (12); The delivery pipe (92) for supplying gas or cast emulsion to the upper spraying unit (20) and the lower spraying unit (30) is spirally wound around the support rod (91).

9. The aluminum casting and rolling emulsion spraying equipment as described in claim 1, characterized in that, The mixing unit (70) includes a water tank (71), a working tank (77) and at least one medicine tank (72; 74), wherein the water tank (71) and the medicine tank (72; 74) are respectively connected to the working tank (77) via a delivery pump (75; 76).

10. The aluminum casting and rolling emulsion spraying equipment as described in claim 9, characterized in that, The conveying unit (60) is connected to the working tank (77) in the mixing unit (70), and at least two pre-filters (78; 79) are connected in parallel between the working tank (77) and the conveying unit (60).

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