Front wind shielding device of continuous melt-spinning nozzle and continuous melt-spinning device

Abstract

The utility model discloses a continuous melt-spinning nozzle front wind shielding device and a continuous melt-spinning device, and relates to the technical field of magnesium alloy continuous melt-spinning, the continuous melt-spinning nozzle front wind shielding device comprises a wind shielding mounting seat assembly mounted at the bottom of a crucible seat and a wind shielding folded plate detachably mounted on the wind shielding mounting seat assembly, and the wind shielding mounting seat assembly is located at a nozzle close to the bottom of the crucible seat. The wind blocking folded plate is close to the cooling roller, and the minimum distance between the wind blocking folded plate and the cooling roller is 5-10 mm. The magnesium alloy nozzle is reasonable in design, cooling of the nozzle is effectively reduced by arranging the wind shielding device, and magnesium alloy is prevented from being solidified at an outlet of the nozzle, so that the problem that the nozzle is blocked is solved, and safety is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to magnesium alloy continuous strip casting technology field more specifically is related to a kind of continuous strip casting nozzle front wind shield device and continuous strip casting device technical field. BACKGROUND

[0002] Magnesium alloy continuous strip casting is a kind of process widely used in magnesium alloy thin strip production.In the process, magnesium alloy melt is continuously thrown out through nozzle, and thin strip is formed on high-speed rotating cooling roller. The existing patent discloses the following technology:

[0003] The patent with publication number CN1200789C and the patent name "Method and equipment for preparing metal and alloy powder by quickening and electromagnetic vibration atomization" discloses the following content: a method and equipment for preparing metal and alloy powder by quickening and electromagnetic vibration atomization. The method is that under certain conditions, molten metal or alloy passes through nozzle and is jetted onto rotating disc, and is thrown onto electromagnetic vibration thin plate with exciter outside rotating disc, to form circular metal liquid drop by vibration, and to fall down and solidify into metal alloy powder. The equipment includes alloy smelting and molten stream device and electromagnetic vibration atomization powder device, and both parts are closed devices. The inner part is provided with molten material crucible with gas inlet pipe and nozzle, rotating disc with rotating shaft with circulating water is arranged below the crucible, umbrella-shaped vibration plate is arranged outside the rotating disc, the vibration plate is provided with one or more exciter, and powder collector is arranged at the lower part of the device. The advantages are simple equipment structure, easy-to-implement method, wide particle size range of obtained metal and alloy powder, smooth particle surface, uniform particle size and low cost.

[0004] The patent with publication number CN1207122C and the patent name "Method and device for preparing metal powder by plane flow casting" discloses the following content: a method and device for preparing metal powder by plane flow casting process. The feature is that molten metal liquid passes through rectangular slit nozzle through heat preservation funnel, contacts with high-speed rotating roller, the outer circumferential surface of the roller is bonded with polytetrafluoroethylene composite layer, the distance between nozzle and roller is controlled to 0.04mm, the rotating speed of the roller reaches 2700r / min, metal melt is broken to form metal liquid drop in nitrogen atmosphere in atomization chamber or directly in air, the metal liquid drop flies and cools in the atomization chamber, and fine metal powder is prepared. The process flow is simple, the prepared powder has good roundness, narrow size distribution range, and high powder yield.

[0005] However, in the above-mentioned patent, during the process from starting to rated speed of the cooling roller, the cooling roller generates a large wind field, which accelerates the air flow around the nozzle, takes away more heat of the nozzle, and finally the temperature of the nozzle is too low, so that the magnesium liquid solidifies at the outlet of the nozzle when the magnesium alloy is thrown, causing the nozzle to be blocked. At present, there is no effective solution to solve this problem. UTILITY MODEL CONTENT

[0006] The utility model discloses a purpose at: in order to solve the technical problem that can effectively avoid the magnesium alloy blockage caused by nozzle cooling, the utility model provides a continuous belt throwing nozzle front windbreak device and continuous belt throwing device.

[0007] The utility model discloses a purpose at: in order to solve the technical problem that can effectively avoid the magnesium alloy blockage caused by nozzle cooling, the utility model provides a continuous belt throwing nozzle front windbreak device and continuous belt throwing device.

[0008] The utility model discloses a first aspect provides a kind of continuous belt throwing nozzle front windbreak device, including the windbreak mounting seat component of installation in the bottom of crucible seat and detachably installed on the windbreak mounting seat component windbreak folding plate, windbreak mounting seat component is located at the nozzle near the bottom of crucible seat, windbreak folding plate is close to cooling roller, the minimum distance between windbreak folding plate and cooling roller is 5-10mm.

[0009] Specifically, the nozzle is used for spraying magnesium alloy melt; the windbreak mounting seat component is made of Al6061 material, is used for fixing the windbreak folding plate, is set behind the nozzle (left side), mainly shunts the high-speed airflow from the rear of the nozzle, so that the high-speed airflow passes from both sides of the nozzle, thereby reducing the heat carried away by the nozzle;

[0010] In addition, the windbreak folding plate is made of 45# carbon steel material, and is made of aluminum silicate fiber inside. The material is resistant to high temperature and combustion, has low friction coefficient, can be flexibly folded, ensures the stability and reliability of the device in a high-temperature environment, and the aluminum silicate fiber is an ideal consumable material selection with its economical and practical price.

[0011] In one embodiment, the windbreak mounting seat component includes a windbreak fixing seat, a clamping seat installed on the right side of the windbreak fixing seat, an inside windbreak piece installed on the inside of the windbreak fixing seat, and an outside windbreak piece installed on the outside of the windbreak fixing seat. The windbreak fixing seat is detachably installed on the bottom of the crucible seat by bolts, and the windbreak folding plate is installed in the clamping seat.

[0012] In one embodiment, the windbreak fixing seat is a vertical three-mitsubishi column as a whole, the top end of the windbreak fixing seat faces left, and the right side of the bottom of the windbreak fixing seat is provided with an inwardly recessed arc-shaped groove, the depth of the arc-shaped groove increases from left to right.

[0013] Specifically, the inwardly recessed arc-shaped groove can block the high-speed airflow from the rear of the nozzle, so that the high-speed airflow passes from both sides of the nozzle, thereby reducing the heat carried away by the nozzle.

[0014] In one embodiment, the clamping seat is detachably mounted on the right side edge of the wind shield fixed seat, the clamping seat comprises a horizontal transverse rod arranged longitudinally and two longitudinal rods symmetrically arranged at both ends of the transverse rod, the transverse rod is integrally formed with the two longitudinal rods, a strip-shaped insertion slot is formed on the lower surface of the transverse rod along the length direction, the wind shield folding plate part is inserted into the strip-shaped insertion slot and locked by bolts, the outer wind shield part and the inner wind shield part are detachably mounted on the respective corresponding longitudinal rods by bolt assemblies, and the transverse rod is detachably mounted on the right end of the wind shield fixed seat by a bolt assembly.

[0015] In one embodiment, the top of the transverse rod is provided with a mounting retreat slot, and a plurality of groups of circular through holes for locking the wind shield folding plate are arranged on the two side walls of the transverse rod.

[0016] In one embodiment, a first strip-shaped mounting hole is arranged on each longitudinal rod.

[0017] In one embodiment, the outer wind shield part and the inner wind shield part are the same in structure, the outer wind shield part comprises a second clamping plate, a baffle mounting portion arranged on the right side of the bottom of the second clamping plate, a connecting portion arranged on the left side of the second clamping plate, and a side baffle, and the baffle mounting portion is integrally formed with the connecting portion.

[0018] In one embodiment, a insertion slot for mounting the side baffle is arranged on the bottom of the baffle mounting portion, a second circular mounting hole is arranged on the baffle mounting portion, and a second strip-shaped mounting hole matched with the first strip-shaped mounting hole of the corresponding longitudinal rod is arranged on the connecting portion.

[0019] In one embodiment, the wind shield folding plate is a bending plate with a bending angle of 120-150°.

[0020] The second aspect of the utility model provides a continuous belt throwing device, including above-mentioned one kind of continuous belt throwing nozzle front wind shield device, still include crucible seat, set up on the crucible seat crucible, set up in the crucible seat bottom and the crucible inside communication's nozzle and set up in the nozzle bottom's cooling roller, this front wind shield device sets up in the nozzle left side.

[0021] The utility model has the advantages that:

[0022] The utility model discloses a reasonable design, and the nozzle is used for spraying magnesium alloy melt, the wind shield mounting seat assembly adopts Al6061 material, is used for fixing the wind shield folding plate, is set up in the rear (left side) of the nozzle, mainly divides the high -speed airflow from the rear of the nozzle, lets high -speed airflow pass from both sides of the nozzle to reduce the heat of the nozzle taken away, through setting up the wind shield device, effectively reduce the cooling of the nozzle, avoid the solidification of magnesium alloy at the nozzle outlet, thereby prevent the problem of nozzle blockage, greatly improve the security. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the drawings used in the embodiments will be briefly introduced as follows. Obviously, the following drawings only show some of the embodiments of the present application, and should not be considered as limiting the scope. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0024] Figure 1 is a structural schematic diagram of the present application;

[0025] Figure 2 is Figure 1 is a partial structural schematic diagram of the present application;

[0026] Figure 3 is a structural schematic diagram of the cooperation of the wind-blocking baffle and the clamping seat;

[0027] Figure 4 is a structural schematic diagram of one direction of the clamping seat;

[0028] Figure 5 is a structural schematic diagram of another direction of the clamping seat;

[0029] Figure 6 is a structural schematic diagram of the cooperation of the wind-blocking baffle, the outer wind-blocking piece and the inner wind-blocking piece;

[0030] Figure 7 is a structural schematic diagram of a continuous belt throwing device;

[0031] Reference signs: 1-wind-blocking baffle, 2-clamping seat, 3-outer wind-blocking piece, 4-inner wind-blocking piece, 5-wind-blocking fixing seat, 6-crucible, 7-crucible seat, 8-nozzle, 9-cooling roller;

[0032] 21-cross bar, 22-strip-shaped insertion slot, 23-longitudinal rod, 24-mounting retreat slot;

[0033] 31-side baffle, 32-second circular mounting hole, 33-second clamping plate, 34-second strip-shaped mounting hole. DETAILED DESCRIPTION

[0034] In order to make the technical problems, technical solutions and technical effects of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0037] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed when in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Example 1

[0039] like Figures 1 to 7 As shown, this embodiment provides a continuous strip nozzle front wind deflector, including a wind deflector mounting assembly installed at the bottom of the crucible seat 7 and a wind deflector baffle 1 detachably installed on the wind deflector mounting assembly. The wind deflector mounting assembly is located at the nozzle 8 near the bottom of the crucible seat 7, and the wind deflector baffle 1 is close to the cooling roller 9. The minimum distance between the wind deflector baffle 1 and the cooling roller 9 is 5-10mm.

[0040] Specifically, nozzle 8 is used to spray molten magnesium alloy; the wind deflector mounting bracket assembly is made of Al6061 material and is used to fix the wind deflector 1. It is located behind (on the left side) of nozzle 8 and mainly diverts the high-speed airflow from behind nozzle 8, allowing the high-speed airflow to pass through both sides of nozzle 8, thereby reducing the heat carried away by nozzle 8.

[0041] In addition, the windbreak baffle 1 is made of 45# carbon steel and is made of aluminum silicate fiber inside. This material is resistant to high temperature, flame retardant, has a low coefficient of friction, and can be flexibly folded, ensuring the stability and reliability of the device in high temperature environment. Moreover, aluminum silicate fiber is an ideal consumable material choice due to its economical price.

[0042] Example 2

[0043] like Figures 1 to 7As shown, the embodiment provides a continuous belt casting nozzle front windbreak device, which comprises a windbreak mounting seat assembly installed at the bottom of the crucible seat 7 and a windbreak folding plate 1 detachably mounted on the windbreak mounting seat assembly. The windbreak mounting seat assembly is located near the nozzle 8 at the bottom of the crucible seat 7, and the windbreak folding plate 1 is located near the cooling roller 9. The minimum distance between the windbreak folding plate 1 and the cooling roller 9 is 5-10 mm.

[0044] The windbreak mounting seat assembly comprises a windbreak fixed seat 5, a clamping seat 2 installed on the right side of the windbreak fixed seat 5, an inner windbreak piece 4 installed on the inner side of the windbreak fixed seat 5, and an outer windbreak piece 3 installed on the outer side of the windbreak fixed seat 5. The windbreak fixed seat 5 is detachably installed on the bottom of the crucible seat 7 by bolts, and the windbreak folding plate 1 is installed in the clamping seat 2.

[0045] The windbreak fixed seat 5 is a vertical trapezoidal column as a whole, the top end of the windbreak fixed seat 5 is to the left, and an inwardly recessed arc-shaped groove is arranged on the right side of the bottom of the windbreak fixed seat 5. The depth of the arc-shaped groove increases from left to right.

[0046] Specifically, the inwardly recessed arc-shaped groove can block the high-speed airflow from the rear of the nozzle 8, allowing the high-speed airflow to pass from both sides of the nozzle 8, thereby reducing the heat taken away by the nozzle 8.

[0047] Embodiment 3

[0048] This embodiment is further optimized on the basis of embodiment 2, specifically:

[0049] The clamping seat 2 is detachably installed on the right edge of the windbreak fixed seat 5, and the clamping seat 2 comprises a horizontal longitudinal crossbar 21 and two longitudinal rods 23 symmetrically arranged at both ends of the crossbar 21. The crossbar 21 and the two longitudinal rods 23 are integrally formed, a strip-shaped insertion slot 22 is formed on the lower surface of the crossbar 21 along the length direction, and the windbreak folding plate 1 is partially inserted into the strip-shaped insertion slot 22 and locked by bolts. The outer windbreak piece 3 and the inner windbreak piece 4 are detachably installed on the respective corresponding longitudinal rods 23 by bolt assemblies. The crossbar 21 is detachably installed on the right end of the windbreak fixed seat 5 by a bolt assembly.

[0050] The top of the crossbar 21 is provided with a mounting retreat groove 24, and a plurality of groups of circular through holes for locking the windbreak folding plate 1 are arranged on the two side walls of the crossbar 21.

[0051] A first strip-shaped mounting hole is arranged on each longitudinal rod 23.

[0052] Embodiment 4

[0053] This embodiment is further optimized on the basis of embodiment 3, specifically:

[0054] The outer wind shield 3 and the inner wind shield 4 are identical in structure, the outer wind shield 3 comprises a second clamping plate 33, a baffle mounting portion arranged at the right bottom of the second clamping plate 33, a connecting portion arranged at the left side of the second clamping plate 33, and a side baffle 31, the baffle mounting portion is integrally formed with the connecting portion.

[0055] The bottom of the baffle mounting portion is provided with a plug-in slot for mounting the side baffle 31, the baffle mounting portion is provided with a second circular mounting hole 32, and the connecting portion is provided with a second strip-shaped mounting hole 34 matched with the first strip-shaped mounting hole of the corresponding longitudinal rod 23.

[0056] The wind baffle 1 is a bending plate with a bending angle of 120-150°.

[0057] Example 5

[0058] The embodiment provides a continuous tape throwing device, comprising the continuous tape throwing nozzle front wind shield device, a crucible seat 7, a crucible 6 arranged on the crucible seat 7, a nozzle 8 arranged at the bottom of the crucible seat 7 and communicated with the inside of the crucible 6, and a cooling roller 9 arranged at the bottom of the nozzle 8, and the front wind shield device is arranged at the left side of the nozzle 8.

Claims

1. A continuous tape casting nozzle front windshield device, characterized by, The windproof mounting base assembly is installed at the nozzle (8) near the bottom of the crucible seat (7), and the windproof flap (1) is installed on the windproof mounting base assembly and is close to the cooling roller (9), and the minimum distance between the windproof flap (1) and the cooling roller (9) is 5-10 mm.

2. A continuous tape casting nozzle front windshield device according to claim 1, wherein, The windproof mounting base assembly includes a windproof fixed base (5), a clamping base (2) installed on the right side of the windproof fixed base (5), an inner windproof part (4) installed on the inner side of the windproof fixed base (5), and an outer windproof part (3) installed on the outer side of the windproof fixed base (5), and the windproof fixed base (5) is detachably installed on the bottom of the crucible seat (7) by bolts, and the windproof flap (1) is installed in the clamping base (2).

3. A continuous tape casting nozzle front windshield device according to claim 2, wherein, The windproof fixed base (5) is a vertical trapezoidal column, the top end of the windproof fixed base (5) is left, and the right side of the bottom of the windproof fixed base (5) is provided with an inwardly recessed arc-shaped groove, and the depth of the arc-shaped groove increases from left to right.

4. A continuous tape casting nozzle front windshield device according to claim 3, wherein The clamping base (2) is detachably installed on the right side edge of the windproof fixed base (5), the clamping base (2) includes a horizontal longitudinal cross bar (21) and two longitudinal bars (23) symmetrically arranged at both ends of the cross bar (21), the cross bar (21) and the two longitudinal bars (23) are integrally formed, a strip-shaped insertion slot (22) is formed on the lower surface of the cross bar (21) along the length direction, the windproof flap (1) is partially inserted into the strip-shaped insertion slot (22) and is locked by bolts, the outer windproof part (3) and the inner windproof part (4) are detachably installed on the respective corresponding longitudinal bars (23) by bolt assemblies, and the cross bar (21) is detachably installed on the right end of the windproof fixed base (5) by a bolt assembly.

5. A continuous tape casting nozzle front windshield device as claimed in claim 4, wherein, A mounting retreat groove (24) is arranged on the top of the cross bar (21), and a plurality of circular through holes for locking the windproof flap (1) are arranged on the two side walls of the cross bar (21).

6. A continuous tape casting nozzle front windshield device as claimed in claim 4, wherein, A first strip-shaped mounting hole is arranged on each longitudinal bar (23).

7. A continuous tape casting nozzle front windshield device as claimed in claim 6, wherein, The outer windproof part (3) and the inner windproof part (4) are the same in structure, the outer windproof part (3) includes a second clamping plate (33), a baffle mounting portion arranged on the right side of the bottom of the second clamping plate (33), a connecting portion arranged on the left side of the second clamping plate (33), and a side baffle (31), and the baffle mounting portion and the connecting portion are integrally formed.

8. A continuous tape casting nozzle front windshield device according to claim 7, wherein, A strip-shaped insertion slot for mounting the side baffle (31) is arranged on the bottom of the baffle mounting portion, and a second strip-shaped mounting hole (34) matched with the first strip-shaped mounting hole of the corresponding longitudinal bar (23) is arranged on the connecting portion.

9. A continuous tape casting nozzle front windshield device as claimed in claim 4, wherein, The windproof flap (1) is a bending plate with a bending angle of 120-150°.

10. A continuous tape casting apparatus comprising a continuous tape casting nozzle front wind shield according to any one of claims 1 to 9, wherein, The front wind shield device is arranged on the left side of the nozzle (8). The front wind shield device is arranged on the left side of the nozzle (8).

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