Plate blow-drying device matched with conveying roller way

Abstract

The utility model discloses a plate blow-drying device matched with a conveying roller way, which relates to the technical field of aluminum alloy plate production and is mounted at the position of a discharging table of a roller hearth furnace. Comprising an upper surface blow-drying device, a lower surface blow-drying device and an air supply system. The upper surface blow-drying device comprises an air duct box and an upper air blowing pipe hung at the bottom of the air duct box, and the air duct box communicates with the upper air blowing pipe in the length direction through a plurality of evenly-arranged air guide pipes; an upper air blowing opening is formed in the upper air blowing pipe; the lower surface blow-drying device comprises a lower air blowing pipe which is installed at the bottom of the conveying roller way and located between the two conveying rollers. A lower air blowing opening is further formed in the lower air blowing pipe, and air blown out of the lower air blowing opening covers the width of the plate; and a lower air inlet is formed in the lower blowing pipe. The plates on the conveying rollers are blow-dried through the upper surface blow-drying device and the lower surface blow-drying device, so that the plates are blow-dried before being unloaded, and watermarks and even corrosion on the surfaces of the plates are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy plate production, in particular to a plate drying device matched with a conveying roller. Background Art

[0002] The roller-hearth furnace quenching system consists of water knives and air knives at the entrance, the main quenching zone, the post-cooling section, and water knives and air knives at the exit. The plates are transported in the roller-hearth furnace quenching system through the conveyor rollers, and finally enter the unloading platform for unloading. The speed of plate transportation depends on the thickness of the plates. The thinner the plates, the faster the transportation speed. This is because the thinner the plates, the easier they are to deform when they stay in the quenching zone. Plates with excessive deformation are considered waste. Therefore, the manufacturer will control the shape of the plates out of the furnace by speeding up the transportation speed and adjusting the water flow in the quenching zone, so as to make the flatness of the plates meet the standard requirements. The speed of the entire conveyor roller is fixed, so the air knife at the exit can achieve different drying effects according to the different transportation speeds of the plates. Plates with slower speeds are easier to dry, while plates with faster speeds are less likely to be dried.

[0003] If the board cannot be blown dry, additional operations will be required to deal with it in time, otherwise watermarks will appear on the surface of the board, which will directly corrode the board and cause waste. Utility Model Content

[0004] The purpose of the utility model is to provide a plate drying device matched with a conveying roller, which is arranged at the unloading platform position, and the plates on the conveying roller are dried respectively by the upper surface drying device and the lower surface drying device, so that the plates are dried before unloading, thereby avoiding watermarks on the surface of the plates and even corrosion.

[0005] In order to achieve the above-mentioned purpose, the utility model provides a plate drying device matched with a conveying roller, which is installed at the unloading platform position of the roller hearth furnace; it comprises an upper surface drying device and a lower surface drying device arranged on the upper and lower sides of the plate, and an air supply system for supplying air to the upper surface drying device and the lower surface drying device; the upper surface drying device comprises an air duct box installed above the conveying roller and arranged along the width direction of the conveying roller, and an upper blowing pipe hoisted at the bottom of the air duct box, and the air duct box is connected to the upper blowing pipe in the length direction through a plurality of evenly arranged air guide pipes; the air duct box is connected to the air supply system, and the upper blowing pipe is provided with an upper blowing port for blowing air obliquely toward the upper surface of the plate, and the air blown out of the upper blowing port covers the width of the plate; the lower surface drying device comprises a lower blowing pipe installed at the bottom of the conveying roller and located between the two conveying rollers; the lower blowing pipe is also provided with a lower blowing port for blowing air obliquely toward the lower surface of the plate, and the air blown out of the lower blowing port covers the width of the plate; the lower blowing pipe is provided with a lower air inlet.

[0006] After adopting the above structure, by installing the device at the unloading platform position of the roller hearth furnace, the upper surface blowing device is installed above the conveying roller, and the lower surface blowing device is installed at the bottom of the conveying roller, the upper surface blowing device and the lower surface blowing device are used to blow dry the plates on the conveying roller respectively, so that the plates are blown dry before unloading, thereby avoiding watermarks on the surface of the plates; the upper surface blowing device includes an air duct box and an upper blowing pipe, and the air duct box and the upper blowing pipe are connected by a plurality of air guide pipes. The air duct box can temporarily store strong wind and evenly distribute it to the upper blowing pipe through the air guide pipe, thereby ensuring the uniformity of air outlet from the upper blowing pipe and improving the drying effect.

[0007] In order to achieve secondary air compression at the upper air outlet and ensure wind force and coverage area, the upper air outlet is a strip hole opened along the length direction of the upper air pipe, and a compression blowing hood is provided on the strip hole. A wire hole with a width smaller than the width of the strip hole is provided at one end of the outer side of the compression blowing hood, and the inner cavity of the compression blowing hood smoothly transitions from the strip hole to the wire hole.

[0008] In order to ensure the coverage area of ​​the wind force of the upper air outlet, the inclination angle of the upper air outlet to the forward direction of the plate is 30°-60°.

[0009] In order to ensure the maximum coverage area, the air outlet direction of the upper air outlet is inclined at 45° to the forward direction of the board.

[0010] In order to realize the height adjustability of the upper surface drying device, the upper surface drying device is installed above the conveying roller through a placement rack; the upper surface drying device is installed on the placement rack with adjustable height.

[0011] In order to achieve secondary air outlet compression at the down-blowing air outlet and ensure wind force and coverage area, a plurality of down-blowing air outlets are evenly arranged along the length direction of the down-blowing air pipe, and the air outlet positions of the down-blowing air outlets are compressed into a flat shape.

[0012] In order to ensure the coverage area of ​​the down-blowing air outlet, the air outlet direction of the down-blowing air outlet is inclined at 30°-60° to the forward direction of the plate.

[0013] In order to ensure the maximum coverage area, the air outlet direction of the down-blowing air outlet is 45° to the forward direction of the board.

[0014] In order to protect the plate and prevent the plate from touching the lower air outlet and causing scratches, a guide rod connecting the conveying rollers on both sides is arranged above the lower air outlet, and the guide rod is fixed to the bottom of the conveying roller through a bracket.

[0015] After adopting the above technical solution, the beneficial effects of the utility model are:

[0016] The utility model discloses a plate drying device matched with a conveying roller to solve the technical problem in the prior art that the plate after quenching is not completely dried, resulting in watermarks on the plate surface and even corrosion. The utility model is arranged at the unloading platform position, and the plate on the conveying roller is dried respectively by the upper surface drying device and the lower surface drying device, so that the plate is dried before unloading, thereby avoiding watermarks on the plate surface and even corrosion. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of a plate drying device matched with a conveying roller table of the utility model;

[0018] Figure 2 yes Figure 1 Side view of

[0019] Figure 3 yes Figure 2 AA cross-sectional view.

[0020] In the figure, 1. upper surface drying device, 11. air duct box, 111. air outlet, 112. air inlet, 12. upper air blowing pipe, 121. air guide port, 122. upper air blowing port, 123. wire hole, 124. compression air blowing hood, 13. air guide port, 2. lower surface drying device, 21. lower air blowing pipe, 211. lower air blowing port, 22. fixing part, 3. conveying roller, 31. conveying roller, 4. air supply system, 5. placement rack, 51. support column, 511. mounting hole, 52. support plate, 61. guide rod, 62. bracket. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings.

[0022] The orientations mentioned in this specification are based on the orientations of the plate drying device matched with the conveying roller of the utility model when it is working normally, and do not limit its orientation during storage and transportation. It only represents a relative position relationship, not an absolute position relationship.

[0023] like Figure 1 , Figure 2 and Figure 3 As shown together, a plate drying device matched with a conveying roller is installed at the unloading platform position of the roller hearth furnace; it includes an upper surface drying device 1 and a lower surface drying device 2 arranged on the upper and lower sides of the plate and an air supply system 4 for supplying air to the upper surface drying device 1 and the lower surface drying device 2.

[0024] The upper surface drying device 1 includes an air duct box 11 installed above the conveying roller 3 and arranged along the width direction of the conveying roller 3, and an upper blowing pipe 12 hoisted at the bottom of the air duct box 11. A plurality of air outlets 111 are evenly arranged at the bottom of the air duct box 11, and an air guide 121 is arranged on the upper blowing pipe 12 corresponding to the air outlet 111. The air outlet 111 and the air guide 121 are connected through an air guide 13; in this embodiment, the air guide 13 is an iron-plated plastic pipe. The air duct box 11 is in the shape of a long strip, which is welded by iron plates, and an air inlet 112 is arranged at one end thereof for connecting the air supply system 4. An upper blowing port 122 is arranged on the upper blowing pipe 12, which blows air obliquely toward the upper surface of the plate; the wind blown out of the upper blowing port 122 covers the width of the plate.

[0025] The air supply system 4 provides wind, which first enters the air duct box 11 for transition buffering, thereby ensuring stable air supply; then the wind is blown into the upper air duct 12 from the air outlets 111 evenly arranged at the bottom of the air duct box 11, and the wind is distributed by setting up multiple air guide ducts 13, so that the strong wind in the air duct box 11 is evenly distributed to the upper air duct 12, ensuring that the upper air duct 12 has uniform air intake, and at the same time avoiding the problem that the upper air outlet 122 close to the air inlet position has strong wind force, while the upper air outlet 122 far away from the air inlet position has weak wind force.

[0026] The inclination angle of the upper air outlet 122 is 30°-60°, and the preferred inclination angle in this embodiment is 45°. This angle can maximize the contact area between the compressed air and the plate, and the drying effect is more obvious.

[0027] The upper air outlet 122 can be a circular hole evenly distributed along the length direction of the upper air blowing pipe 12. In this embodiment, in order to improve the uniformity of the coverage of the upper air outlet 122 and improve the compression effect of the wind force, the upper air outlet 122 is a strip hole opened along the length direction of the upper air blowing pipe 12. The strip hole is covered with a compression air hood 124. The outer end of the compression air hood 124 is provided with a line hole 123 whose width is less than the width of the strip hole. The inner cavity of the compression air hood 124 smoothly transitions from the strip hole to the line hole 123. Through this structure, the strong wind entering from the air guide port 121 is sprayed into the upper air blowing pipe 12, then rotates around the upper air blowing pipe 12, and then sprayed out from the upper air outlet 122. The cross section of the compression air hood 124 gradually becomes smaller, thereby compressing the wind, increasing the wind speed, compressing the wind into a flat shape, and then spraying it from the line hole 123 to the upper surface of the plate, thereby improving the drying effect.

[0028] The upper surface drying device 1 is installed above the conveying roller 3 through the placement rack 5. The placement rack 5 includes a left bracket and a right bracket welded on both sides of the conveying roller 3 of the roller hearth furnace, and the two sides of the air duct box 11 are supported on the left bracket and the right bracket respectively. The left bracket and the right bracket have the same structure and are arranged relatively, so this embodiment only takes the left bracket as an example for structural description. The left bracket includes two support columns 51 arranged relatively, and the support columns 51 can be an I-shaped iron plate or an angle steel. The two support columns 51 are connected by a support plate 52, and the air duct box 11 is inserted between the two support columns 51 and then supported on the support plate 52. The air duct box 11 can be placed directly on the placement rack 5 without special connection. This can increase convenience, ensure the stability of the air duct box 11 when in use, and can lift the air duct box 11 with a lifting tool in time when needed.

[0029] In order to facilitate the adjustment of the height of the air duct box 11 , a plurality of mounting holes 511 are evenly arranged in the vertical direction on the support column 51 , and the support plate 52 is installed in any mounting hole 511 by bolts, so as to facilitate the adjustment of the installation height of the support plate 52 .

[0030] The lower surface drying device 2 includes a lower blowing pipe 21 installed at the bottom of the conveying roller 3 and located between the two conveying rollers 31. The lower blowing pipe 21 is made of an iron pipe; the lower blowing pipe 21 is fixedly installed at the bottom of the conveying roller 3 by a fixing member 22. A plurality of lower blowing ports 211 are evenly arranged on the lower blowing pipe 21, which blow air obliquely toward the lower surface of the plate. In this embodiment, due to the space limitation between the two conveying rollers 31, the diameter of the lower blowing pipe 21 is limited. In order to achieve the compression effect of the wind force and ensure the wind force intensity, the air outlet position of the lower blowing port 211 is compressed into a flat shape, thereby forming a certain fan-shaped effect, thereby improving the effect of its compressed air, thereby increasing its coverage area, and ensuring that the wind force can also be blown between adjacent lower blowing ports 211. The air outlet direction of the lower blowing port 211 is at an inclination of 30°-60° with the forward direction of the plate, preferably 45°. This angle can maximize the contact area between the compressed wind and the plate, and the drying effect is more obvious.

[0031] The lower air blowing pipe 21 is provided with a lower air inlet, which is connected to the air supply system 4. The lower air blowing pipe 21 can be connected to an independent air supply system. In this embodiment, the upper surface drying device 1 and the lower surface drying device 2 share the same air supply system 4. The air supply system 4 includes a fan, which is used to generate high-intensity wind. In order to supply air to the upper surface drying device 1 and the lower surface drying device 2 at the same time, the air outlet end of the fan is connected to the air duct box 11 and the lower air blowing pipe 21 through a three-way pipeline.

[0032] In order to prevent the plate from accidentally touching the lower air outlet 211 during the plate conveying process, thereby causing scratches on the plate, the height of the lower air outlet 211 is lower than the conveying plane height of the conveying roller 3.

[0033] In order to further ensure the protective effect, a guide rod 61 connecting the conveying rollers 31 on both sides is provided above the lower air outlet 211 , and the guide rod 61 is fixed to the bottom of the conveying roller 3 through a bracket 62 .

[0034] The utility model discloses a plate drying device matched with a conveying roller to solve the technical problem in the prior art that the plate after quenching is not completely dried, resulting in watermarks on the plate surface and even corrosion. The utility model is arranged at the unloading platform position, and the plate on the conveying roller is dried respectively by the upper surface drying device and the lower surface drying device, so that the plate is dried before unloading, thereby avoiding watermarks on the plate surface and even corrosion.

[0035] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A plate drying device matched with a conveying roller, characterized in that: Installed at the unloading platform of the roller hearth furnace; including an upper surface drying device and a lower surface drying device arranged on the upper and lower sides of the plate, and an air supply system for supplying air to the upper surface drying device and the lower surface drying device; The upper surface drying device comprises an air duct box installed above the conveying roller and arranged along the width direction of the conveying roller, and an upper blowing pipe hoisted at the bottom of the air duct box, wherein the air duct box is connected to the upper blowing pipe through a plurality of evenly arranged air guide pipes in the length direction; the air duct box is connected to the air supply system, and the upper blowing pipe is provided with an upper blowing port that blows air obliquely toward the upper surface of the plate, and the air blown out of the upper blowing port covers the width of the plate; The lower surface drying device includes a lower blowing pipe installed at the bottom of the conveying roller and located between two conveying rollers; the lower blowing pipe is also provided with a lower blowing port that blows air obliquely toward the lower surface of the plate, and the wind blown out of the lower blowing port covers the width of the plate; the lower blowing pipe is provided with a lower air inlet.

2. A plate drying device matched with a conveying roller according to claim 1, characterized in that: The upper air outlet is a strip hole opened along the length direction of the upper air blowing pipe, and a compression blowing hood is provided on the strip hole. A linear hole with a width smaller than the width of the strip hole is provided at one end of the outer side of the compression blowing hood, and the inner cavity of the compression blowing hood smoothly transitions from the strip hole to the linear hole.

3. The plate drying device matched with the conveying roller according to claim 1 is characterized in that: The inclination angle between the upper air outlet and the advancing direction of the plate is 30°-60°.

4. The plate drying device matched with the conveying roller according to claim 3 is characterized in that: The air outlet direction of the upper air outlet is inclined at 45° to the forward direction of the plate.

5. The plate drying device matched with the conveying roller according to claim 1 is characterized in that: The upper surface drying device is installed above the conveying roller through a placement rack; the upper surface drying device is installed on the placement rack with adjustable height.

6. The plate drying device matched with the conveying roller according to claim 1 is characterized in that: A plurality of the lower air outlets are evenly arranged along the length direction of the lower air pipe, and the air outlet positions of the lower air outlets are compressed into a flat shape.

7. The plate drying device matched with the conveying roller according to claim 6 is characterized in that: The air outlet direction of the lower air outlet is inclined at an angle of 30°-60° to the forward direction of the plate.

8. The plate drying device matched with the conveying roller according to claim 7 is characterized in that: The air outlet direction of the lower air outlet is 45° to the forward direction of the plate.

9. The plate drying device matched with the conveying roller according to claim 1, characterized in that: A guide rod connecting the conveying rollers on both sides of the lower air outlet is arranged above the lower air outlet, and the guide rod is fixed to the bottom of the conveying roller through a bracket.

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