Molten aluminum ladle baking device capable of automatically adjusting gas flow

Abstract

The utility model relates to the technical field of ladle baking devices, and discloses a molten aluminum ladle baking device capable of automatically adjusting gas flow, which comprises a ladle cover, a gas pipe and a combustion mechanism, a gas inlet is arranged at the side edge of the ladle cover, a gas inlet cavity is arranged in the ladle cover, the gas inlet is communicated with the gas inlet cavity, and the gas pipe is communicated with the combustion mechanism. The combustion mechanism is communicated with the gas inlet and the gas pipe; the combustion mechanism comprises a combustor and a plurality of air blowing pipes arranged at the bottom of the combustor. The length of the portion, extending out of the sleeve, of the sliding pipe is changed through the adjustor, so that the sliding pipe can be close to molten aluminum ladles with various inner diameter sizes, the baking efficiency of the molten aluminum ladles is improved, and in the length adjusting process of the sliding pipe, the conduction area between the air inlet hole in the first baffle and the air inlet hole in the second baffle in the gas pipe is changed; therefore, the inflow amount of the combustion gas is adjusted according to the inner diameter of the molten aluminum ladle, and waste of the combustion gas is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ladle baking devices, in particular to an aluminum liquid ladle baking device capable of self-regulating gas flow. Background Art

[0002] The aluminum molten ladle preheating device is also called a ladle baking device. It is mainly used to quickly and evenly increase the temperature of the aluminum ladle lining to reduce heat loss during the aluminum molten injection process and extend the service life of the aluminum ladle lining. The aluminum ladle is a commonly used equipment for transporting molten aluminum for casting operations in the casting workshop. It is usually composed of a cover, a burner, a gas pipeline and a gas delivery device. The cover covers the aluminum ladle, and the gas pipeline sprays fire into the aluminum ladle through the burner. The gas delivery device also sends gas into the cover through the burner to achieve baking inside the aluminum ladle.

[0003] Patent publication number CN110918959A discloses a ladle roaster that eliminates the rotary joint and instead uses a metal hose to connect to an external gas pipeline, eliminating the potential safety hazard of gas leakage caused by frequent damage to the rotary joint. Furthermore, by adding an insulation layer and employing a specially designed burner, the original combustion-supporting fan, induced draft fan, and heat storage element are eliminated, and the air is heated using the residual heat from the ladle cover during roasting. This invention utilizes the pulling force of the gas to create negative pressure at the ladle cover's air intake, automatically drawing external air into the ladle cover's interlayer channel. After preheating, it is fully mixed with the gas inside the burner and burned. However, the gas intake relies on the gas pipeline. Because the gas flow rate in the gas pipeline is constant, the amount of gas required to roast aluminum ladles of different specifications varies depending on the size of the ladle, resulting in gas waste. Utility Model Content

[0004] The purpose of the utility model is to provide a device for baking aluminum liquid ladle with self-regulating gas flow, so as to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] and a tube connecting the discharging opening of the gas heating unit and the pump with a check valve in it at the bottom of the heat exchanger, the tube having a check valve in it at the pump end and a check valve in it at the pump end.

[0007] As a further solution of the present invention: the air blowing pipe includes a sleeve and a sliding tube, one end of the sleeve is connected to the burner, and the other end of the sleeve is slidably connected to the sliding tube, and the bottom of the cover is also provided with a regulator for adjusting the sliding position of the sliding tube.

[0008] As a further solution of the present invention: the regulator includes an adjusting screw rotatably installed at the bottom of the package cover and a sliding seat slidably installed at the bottom of the package cover, the sliding seat is threadedly connected to the adjusting screw, and the sliding seat is connected to the sliding tube through a second connecting rod; one end of the adjusting screw is transmission-connected to the second rotating shaft through a third gear set.

[0009] As a further solution of the present invention: the air intake chamber is connected to an exhaust pipe, and the exhaust pipe includes a first tube body and a second tube body that are connected to each other, wherein the first tube body is connected to the burner, and the second tube body is connected to the sliding tube.

[0010] As a further solution of the present invention: a limit plate is further provided at the bottom of the cover, the limit plate corresponds to the adjusting screw one by one, and the bottom of the sliding seat is connected to the limit plate via a first connecting rod.

[0011] As a further solution of the present invention: a first drive box and a second drive box are also installed on the upper part of the cover, a driven gear is provided inside the second drive box, the driven gear is rotatably installed on the second drive box through the first rotating shaft, one end of the first rotating shaft is transmission-connected to the second rotating shaft through the second gear set, a rack is also slidably installed inside the second drive box, the rack is engaged with the driven gear, and a telescopic rod for driving the rack to move is also provided inside the second drive box.

[0012] As a further solution of the present invention: the air intake chamber includes an air intake section and an annular section, the air intake section is provided with an air intake valve, the air intake valve includes an outer shell and a valve core rotatably installed inside the outer shell, a control shaft is rotatably installed inside the first drive box, the control shaft is connected to the valve core, and the other end of the first rotating shaft is transmission-connected to the control shaft through a first gear set.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention changes the length of the sliding tube extending out of the sleeve by setting a regulator, so that the sliding tube can be close to aluminum ladles of various inner diameters, thereby improving the baking efficiency of the aluminum ladles, and in the process of adjusting the length of the sliding tube, changes the conduction area between the air inlet hole on the first baffle plate inside the gas pipe and the air inlet hole on the second baffle plate, thereby adjusting the inflow of combustion gas according to the inner diameter size of the aluminum ladles, avoiding waste of combustion gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the structure of the aluminum liquid baking device with self-regulating gas flow Figure 1 .

[0015] Figure 2 Schematic diagram of the structure of the aluminum liquid baking device with self-regulating gas flow Figure 2 .

[0016] Figure 3 It is a cross-sectional view of an aluminum liquid baking device with self-regulating gas flow.

[0017] Figure 4 This is a schematic diagram of the structure of the gas pipe in the aluminum liquid baking device with self-regulating gas flow.

[0018] Figure 5 This is a schematic diagram of the structure of the air inlet cavity in the aluminum liquid baking device with self-regulating gas flow.

[0019] Figure 6 This is a schematic diagram of the structure of the air inlet valve in the aluminum liquid baking device with self-regulating gas flow.

[0020] In the figure: 10-cover, 11-air inlet, 111-air inlet chamber, 112-inlet valve, 1121-housing, 1122-valve core, 113-exhaust pipe, 12-first drive box, 121-first rotating shaft, 122-first gear set, 13-second drive box, 131-rack, 132-driven gear, 14-third drive box, 141-second rotating shaft, 142-second gear set, 15-limiting plate, 16-first connecting rod, 17-sliding seat, 18-second connecting rod, 19-adjusting screw, 191-third gear set, 20-gas pipe, 21-inner tube, 22-housing, 23-first baffle, 24-second baffle, 30-combustion mechanism, 31-burner, 32-sleeve, 33-sliding tube. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figures 1-6 In the embodiment of the present invention, a device for baking aluminum liquid ladle with self-regulating gas flow is provided, comprising a ladle cover 10, a gas pipe 20 and a combustion mechanism 30. An air inlet 11 is provided on the side of the ladle cover 10, an air inlet cavity 111 is provided inside the ladle cover 10, the air inlet 11 is communicated with the air inlet cavity 111, the combustion mechanism 30 is communicated with the air inlet 11 and the gas pipe 20, the air inlet 11 is used to provide air to the combustion mechanism 30, the gas pipe 20 is used to provide combustion gas to the combustion mechanism 30, and the air and combustion gas are connected. The bodies are mixed inside the combustion mechanism 30, and flames are generated after the combustion mechanism 30 is ignited; the combustion mechanism 30 includes a burner 31 and a plurality of air blowing pipes arranged at the bottom of the burner 31, and the air blowing pipes are connected to the burner 31. After the combustion gas and a part of the air enter the burner 31, the burner 31 is ignited, and the other part of the air enters the air blowing pipes. The burner 31 heats the air. After the air expands due to the heat, when the ladle cover 10 is covered on the aluminum ladle, the high-temperature air sprayed from the air blowing pipes bakes the aluminum ladle.

[0023] In an embodiment of the present application, a third drive box 14 is installed on the upper part of the cover 10, and the gas pipe 20 is installed on the third drive box 14. The gas pipe 20 includes an inner tube 21 and a shell 22. The inner tube 21 is fixedly installed on the third drive box 14, and the shell 22 is rotatably installed on the third drive box 14, and the shell 22 is arranged on the outside of the inner tube 21; a second rotating shaft 141 is rotatably installed inside the third drive box 14, and the second rotating shaft 141 is a hollow shaft structure, and the upper end of the second rotating shaft 141 is fixedly connected to the shell 22, and the lower end of the second rotating shaft 141 extends into the interior of the burner 31, and the inner tube 21 is connected to the upper end of the second rotating shaft 141. The combustion gas, such as coal gas, enters the interior of the second rotating shaft 141 from the inner tube 21, and the coal gas flows along the second rotating shaft 141 and enters the interior of the burner 31.

[0024] A first baffle 23 and a second baffle 24 are provided inside the inner tube 21. The first baffle 23 is rotatably mounted on the inner tube 21. The side of the first baffle 23 is connected to the shell 22. The second baffle 24 is fixedly mounted inside the inner tube 21. A plurality of air inlet holes are provided on the first baffle 23 and the second baffle 24. When the second rotating shaft 141 rotates, the shell 22 and the second baffle 24 rotate synchronously with the second rotating shaft 141, so that the relative positions of the air inlet holes on the first baffle 23 and the air inlet holes on the second baffle 24 are offset, thereby changing the conduction area between the air inlet holes on the first baffle 23 and the air inlet holes on the second baffle 24, thereby adjusting the flow rate of combustion gas entering the inner tube 21.

[0025] In the embodiment of the present application, the blowing pipe includes a sleeve 32 and a sliding tube 33, one end of the sleeve 32 is communicated with the burner 31, and the other end of the sleeve 32 is slidably connected to the sliding tube 33. The bottom of the ladle cover 10 is also provided with a regulator for adjusting the sliding position of the sliding tube 33, and the regulator includes an adjusting screw 19 rotatably mounted on the bottom of the ladle cover 10 and a sliding seat 17 slidably mounted on the bottom of the ladle cover 10, the sliding seat 17 is threadedly connected to the adjusting screw 19, and the sliding seat 17 is connected to the sliding tube 33 through a second connecting rod 18; one end of the adjusting screw 19 is transmission-connected to the second rotating shaft 141 through a third gear set 191. When the aluminum ladle is baked using the baking device, the second rotating shaft 141 is first controlled to rotate, so that the second rotating shaft 141 drives The dynamic adjusting screw 19 rotates, and the adjusting screw 19 uses the sliding seat 17 and the second connecting rod 18 to adjust the length of the sliding tube 33 extending out of the sleeve 32, so that the sliding tube 33 can be suitable for aluminum ladles with various inner diameters, thereby improving the baking efficiency of the aluminum ladles. It can be understood that the larger the inner diameter of the aluminum ladles, the longer the sliding tube 33 extends out of the sleeve 32. At this time, the second rotating shaft 141 drives the first baffle 23 to rotate, so that the conduction area between the air inlet holes on the first baffle 23 and the air inlet holes on the second baffle 24 is increased, thereby increasing the flow rate of the combustion gas. On the contrary, the smaller the inner diameter of the aluminum ladles, the shorter the length of the sliding tube 33 extending out of the sleeve 32, and the flow rate of the combustion gas is reduced, thereby adjusting the inflow of the combustion gas according to the inner diameter of the aluminum ladles to avoid waste of combustion gas.

[0026] Furthermore, in an embodiment of the present application, the air intake chamber 111 is connected to an exhaust pipe 113, and the exhaust pipe 113 includes a first tube body and a second tube body that are connected to each other, wherein the first tube body is connected to the burner 31, and the second tube body is connected to the sliding tube 33. After the burner 31 is ignited, the flame burns and heats the air inside the second tube body, causing the air to expand due to the heat.

[0027] In the embodiment of the present application, a limit plate 15 is further provided at the bottom of the ladle cover 10, and the limit plate 15 corresponds one-to-one to the adjusting screw 19. The bottom of the sliding seat 17 is connected to the limit plate 15 through a first connecting rod 16. The sliding seat 17 is used to drive the limit plate 15 to move horizontally at the bottom of the ladle cover 10. The outer side of the limit plate 15 is an arc-shaped plate structure. After the ladle cover 10 is covered on the aluminum ladle, the sliding seat 17 drives the limit plate 15 to move so that the limit plate 15 is close to the inner wall of the aluminum ladle, thereby stably covering the ladle cover 10 on the aluminum ladle.

[0028] In the embodiment of the present application, a first drive box 12 and a second drive box 13 are further installed on the upper part of the bag cover 10. A driven gear 132 is provided inside the second drive box 13. The driven gear 132 is rotatably mounted on the second drive box 13 through the first rotating shaft 121. One end of the first rotating shaft 121 is transmission-connected to the second rotating shaft 141 through a second gear set 142. A rack 131 is further slidably mounted inside the second drive box 13. The rack 131 is engaged with the driven gear 132. A telescopic rod for driving the rack 131 to move is further provided inside the second drive box 13. When the length of the telescopic end of the telescopic rod changes, the rack 131 is driven to move. The rack 131 drives the driven gear 132 to rotate, thereby controlling the rotation of the second rotating shaft 141 through the first rotating shaft 121.

[0029] Furthermore, in the embodiment of the present application, the air intake chamber 111 includes an air intake section and an annular section, and an air intake valve 112 is provided on the air intake section. The air intake valve 112 is a spherical flow valve structure, including an outer shell 1121 and a valve core 1122 rotatably installed inside the outer shell 1121. A control shaft is rotatably installed inside the first drive box 12, and the control shaft is connected to the valve core 1122. The other end of the first rotating shaft 121 is transmission-connected to the control shaft through a first gear set 122. It can be understood that when the first rotating shaft 121 drives the second rotating shaft 141 to rotate, so that the gas inflow of the gas pipe 20 changes, the first rotating shaft 121 simultaneously drives the control shaft to rotate, so that the valve core 1122 rotates inside the outer shell 1121, changing the inflow of air, thereby adjusting the mixing ratio of air and combustion gas to avoid incomplete combustion of the combustion gas.

[0030] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0031] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A device for baking aluminum liquid ladle with self-regulating gas flow, comprising a ladle cover (10), a gas pipe (20) and a combustion mechanism (30), wherein an air inlet (11) is provided at a side of the ladle cover (10), an air inlet cavity (111) is provided inside the ladle cover (10), the air inlet (11) is communicated with the air inlet cavity (111), the combustion mechanism (30) is communicated with the air inlet (11) and the gas pipe (20), and the device is characterized in that: The combustion mechanism (30) includes a burner (31) and a plurality of air blowing pipes arranged at the bottom of the burner (31); a third driving box (14) is installed on the upper part of the cover (10); the gas pipe (20) includes an inner tube (21) and a shell (22); the inner tube (21) is fixedly installed on the third driving box (14); the shell (22) is rotatably installed on the third driving box (14); a second rotating shaft (141) is rotatably installed inside the third driving box (14); the second rotating shaft (141) is a hollow shaft structure, and the upper end of the second rotating shaft (141) is The inner tube (21) is fixedly connected to the shell (22), the lower end of the second rotating shaft (141) extends into the interior of the burner (31), and the inner tube (21) is communicated with the upper end of the second rotating shaft (141); a first baffle (23) and a second baffle (24) are provided inside the inner tube (21), the first baffle (23) is rotatably mounted on the inner tube (21), the side of the first baffle (23) is connected to the shell (22), and the second baffle (24) is fixedly mounted inside the inner tube (21), and a plurality of air inlet holes are provided on the first baffle (23) and the second baffle (24).

2. The aluminum liquid baking device with self-regulating gas flow according to claim 1 is characterized in that: The air blowing pipe comprises a sleeve (32) and a sliding pipe (33), one end of the sleeve (32) is communicated with the burner (31), and the other end of the sleeve (32) is slidably connected to the sliding pipe (33), and a regulator for adjusting the sliding position of the sliding pipe (33) is also provided at the bottom of the cover (10).

3. The aluminum liquid baking device with self-regulating gas flow according to claim 2, characterized in that: The regulator comprises an adjusting screw (19) rotatably mounted on the bottom of the package cover (10) and a sliding seat (17) slidably mounted on the bottom of the package cover (10); the sliding seat (17) is threadedly connected to the adjusting screw (19), and the sliding seat (17) is connected to the sliding tube (33) through a second connecting rod (18); one end of the adjusting screw (19) is transmission-connected to the second rotating shaft (141) through a third gear set (191).

4. The aluminum liquid baking device with self-regulating gas flow according to claim 3 is characterized in that: The air inlet cavity (111) is connected to an exhaust pipe (113), and the exhaust pipe (113) includes a first pipe body and a second pipe body that are connected to each other, wherein the first pipe body is connected to the burner (31), and the second pipe body is connected to the sliding pipe (33).

5. The aluminum liquid baking device with self-regulating gas flow according to claim 4 is characterized in that: A limiting plate (15) is further provided at the bottom of the package cover (10), and the limiting plate (15) corresponds one-to-one to the adjusting screw (19). The bottom of the sliding seat (17) is connected to the limiting plate (15) via a first connecting rod (16).

6. The aluminum liquid baking device with self-regulating gas flow according to claim 5, characterized in that: A first drive box (12) and a second drive box (13) are also installed on the upper part of the bag cover (10). A driven gear (132) is provided inside the second drive box (13). The driven gear (132) is rotatably installed on the second drive box (13) through a first rotating shaft (121). One end of the first rotating shaft (121) is transmission-connected to the second rotating shaft (141) through a second gear set (142). A rack (131) is also slidably installed inside the second drive box (13). The rack (131) is engaged with the driven gear (132). A telescopic rod for driving the rack (131) to move is also provided inside the second drive box (13).

7. The aluminum liquid baking device with self-regulating gas flow according to claim 6, characterized in that: The air intake chamber (111) comprises an air intake section and an annular section. An air intake valve (112) is provided on the air intake section. The air intake valve (112) comprises an outer shell (1121) and a valve core (1122) rotatably mounted inside the outer shell (1121). A control shaft is rotatably mounted inside the first drive box (12), the control shaft being connected to the valve core (1122). The other end of the first rotating shaft (121) is transmission-connected to the control shaft via a first gear set (122).

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