Ventilation cooling device for hot rolled coil

Abstract

The utility model discloses a hot-rolled coil ventilation cooling device which comprises a bearing box, a cavity is formed in the bearing box, a plurality of air outlet holes are formed in the upper side of the cavity, an air inlet pipe opening communicated with the cavity is formed in one end side of the bearing box, and a driving motor is installed on the other end side of the bearing box. A driving shaft in shaft connection with the driving motor is arranged in the bearing box, fixing shafts parallel to the driving shaft are symmetrically arranged on the two sides of the driving shaft, the fixing shafts are sleeved with a plurality of driven wheels capable of rotating relative to the fixing shafts, and the driving shaft is sleeved with a driving wheel capable of rotating along with the driving shaft. Compared with a traditional cooling mode, the hot-rolled coil ventilation cooling device is better in effect.

Description

Technical Field

[0001] The utility model relates to a hot-rolled coil, and specifically, to a ventilation and cooling device for hot-rolled coils. Background Art

[0002] Hot-rolled coils are made from continuous casting slabs or blooming slabs as raw materials. They are heated in a walking beam reheating furnace, descaled with high-pressure water, then enter the roughing mill. After the roughing materials are cut at the head and tail, they enter the finishing mill, where computer-controlled rolling is implemented. After finishing rolling, they go through laminar cooling and are coiled by a coiler to become direct rolling coils.

[0003] Since the temperature of hot-rolled coils is still as high as over 300 °C when rolling is completed, and the next process requires the temperature of hot-rolled coils not to exceed a certain temperature, a cooling site needs to be provided for hot-rolled coils, which is customarily called a hot-rolled coil storage in engineering.

[0004] However, due to the high temperature and large weight of hot-rolled coils, it takes a long time for them to cool naturally. In summer, it even takes 4 - 6 days to cool down to the temperature required for the next process. Therefore, a ventilation and cooling device for hot-rolled coils that can accelerate the cooling of hot-rolled coils is needed.

[0005] Chinese Patent CN202311392352.1 discloses a ventilation and cooling device for hot-rolled coils, including a heat-conducting base and a cooling fan; the heat-conducting base serves as a placement and support member for hot-rolled coils, and an arc-shaped groove extending along the length direction is provided at the top thereof. The arc-shaped groove is adapted to the outer peripheral surface of the hot-rolled coil, so that when the hot-rolled coil is placed on the heat-conducting base, the outer peripheral surface of the lower part of the hot-rolled coil fits with the surface of the arc-shaped groove; inside the heat-conducting base, an air inlet cooling channel and an air outlet cooling channel extending along the length direction are symmetrically arranged on the left and right below the arc-shaped groove. Multiple heat dissipation fins extending along the length direction and connected to the lower side of the arc-shaped groove are provided in both the air inlet cooling channel and the air outlet cooling channel. The tails of the air inlet cooling channel and the air outlet cooling channel are connected, an air inlet is provided at the head of the air inlet cooling channel, and an air outlet is provided at the head of the air outlet cooling channel.

[0006] When the ventilation and cooling device for hot-rolled coils dissipates heat from the hot-rolled coil, the hot-rolled coil is always in one state and cannot be adjusted, resulting in better heat dissipation effect at the bottom of the hot-rolled coil than other parts, and serious uneven heat dissipation, thus affecting the overall heat dissipation effect of the hot-rolled coil. Summary of the Utility Model

[0007] The purpose of the utility model is to provide a ventilation and cooling device for hot-rolled coils, which can drive the hot-rolled coil to rotate self, increase the heat dissipation effect, and has a better effect than the traditional cooling method.

[0008] To achieve the above object, the present utility model provides a hot-rolled coil ventilation and cooling device, which includes a supporting box. A cavity is provided inside the supporting box. A plurality of air outlet holes are provided on the upper side of the cavity. An air inlet pipe opening communicating with the cavity is provided on one end side of the supporting box. A driving motor is installed on the other end side of the supporting box. A driving shaft axially connected to the driving motor is provided inside the supporting box. Two fixed shafts parallel to the driving shaft are symmetrically arranged on both sides of the driving shaft. A plurality of driven wheels capable of rotating relative to the fixed shafts are sleeved on the fixed shafts. A driving wheel capable of rotating with the driving shaft is sleeved on the driving shaft.

[0009] Preferably, the inner wall of the supporting box is an inner arc surface, the outer wall of the supporting box is an outer arc surface. A plurality of support plates are arranged in a row from one end to the other end at the bottom side of the outer wall of the supporting box. A connecting plate is provided between adjacent support plates. Mounting holes are provided on the connecting plate.

[0010] Preferably, a plurality of first support seats for mounting the fixed shafts are fixedly connected to the inner arc surface. A plurality of second support seats for mounting the driving shaft are fixedly connected to the inner arc surface.

[0011] Preferably, bearings are embedded at both ends of the driven wheel, and the inner rings of the bearings are fixedly sleeved on the fixed shafts.

[0012] Preferably, a plurality of flow guiding grooves are provided on the outer side of the driven wheel.

[0013] Preferably, a rubber sleeve is sleeved outside the driving wheel.

[0014] Preferably, the exhaust direction of the air outlet holes is the vertical direction.

[0015] According to the above technical solution, the present utility model provides a hot-rolled coil ventilation and cooling device, which includes a supporting box. A cavity is provided inside the supporting box. A plurality of air outlet holes are provided on the upper side of the cavity. An air inlet pipe opening communicating with the cavity is provided on one end side of the supporting box. A driving motor is installed on the other end side of the supporting box. A driving shaft axially connected to the driving motor is provided inside the supporting box. Two fixed shafts parallel to the driving shaft are symmetrically arranged on both sides of the driving shaft. A plurality of driven wheels capable of rotating relative to the fixed shafts are sleeved on the fixed shafts. A driving wheel capable of rotating with the driving shaft is sleeved on the driving shaft.

[0016] The usage method and beneficial effects of the hot-rolled coil ventilation and cooling device are as follows: When using the hot-rolled coil ventilation and cooling device, place the hot-rolled coil to be cooled between multiple driven wheels on both sides and mount it on multiple driving wheels. Ventilate the air inlet pipe opening, and the air blows towards the hot-rolled coil from multiple air outlet holes to dissipate heat from the bottom of the hot-rolled coil. At the same time, start the driving motor, drive the driving shaft to drive the driving wheels to rotate, and the driving wheels drive the hot-rolled coil to rotate through frictional transmission. In order to overcome the resistance of the hot-rolled coil rotation, multiple driven wheels are arranged on the fixed shafts on both sides. As the hot-rolled coil rotates, each part of the hot-rolled coil can be directly blown by the wind for cooling, thereby increasing the cooling effect.

[0017] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. Brief Description of the Drawings

[0018] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the following specific implementation, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0019] Figure 1 is a schematic structural diagram of a preferred implementation of the hot-rolled coil ventilation and cooling device;

[0020] Figure 2 is a top view structural diagram of a preferred implementation of the hot-rolled coil ventilation and cooling device;

[0021] Figure 3 is Figure 2 the schematic A-A sectional structure diagram of

[0022] Figure 4 is Figure 2 the schematic B-B sectional structure diagram of

[0023] Figure 5 is Figure 4 the schematic C-C sectional structure diagram of

[0024] Figure 6 is a cooling working state diagram of the hot-rolled coil ventilation and cooling device.

[0025] Description of the Reference Numerals

[0026] 1 - Support box; 2 - Support plate; 3 - Connecting plate; 4 - Driving motor; 5 - Driving shaft; 6 - First support seat; 7 - Second support seat; 8 - Air inlet pipe opening; 9 - Air outlet hole; 10 - Driving wheel; 11 - Driven wheel; 12 - Flow guiding groove; 13 - Mounting hole; 14 - Cavity; 15 - Hot-rolled coil; 16 - Bearing; 17 - Fixed shaft. Specific Implementation

[0027] The following will describe in detail the specific embodiments of the present utility model in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and understanding the present utility model, and are not used to limit the present utility model.

[0028] In the present utility model, unless otherwise stated, the directional terms such as "up and down, left and right, front and back, inside and outside" included in the terms only represent the orientation of the terms in the normal use state, or the common names understood by those skilled in the art, and should not be regarded as a limitation to the terms.

[0029] See Figures 1-6 The hot-rolled coil ventilation and cooling device shown. The hot-rolled coil ventilation and cooling device includes a supporting box 1. A cavity 14 is provided inside the supporting box 1. A plurality of air outlet holes 9 are provided on the upper side of the cavity 14. An air inlet pipe opening 8 communicating with the cavity 14 is provided on one end side of the supporting box 1. A driving motor 4 is installed on the other end side of the supporting box 1. A driving shaft 5 axially connected to the driving motor 4 is provided inside the supporting box 1. Two sides of the driving shaft 5 are symmetrically provided with fixed shafts 17 parallel to it. A plurality of driven wheels 11 capable of rotating relative to the fixed shafts 17 are sleeved on the fixed shafts 17. A driving wheel 10 capable of rotating following the driving shaft 5 is sleeved on the driving shaft 5.

[0030] By implementing the above technical solution, when using the hot-rolled coil ventilation and cooling device, the hot-rolled coil 15 to be cooled is placed between a plurality of driven wheels 11 on both sides and carried on a plurality of driving wheels 10. Air is ventilated into the air inlet pipe opening 8, and the air blows from a plurality of air outlet holes 9 towards the hot-rolled coil 15 to dissipate heat from the bottom of the hot-rolled coil 15. At the same time, the driving motor 4 is started, the driving shaft 5 is driven to drive the driving wheel 10 to rotate, and the driving wheel 10 drives the hot-rolled coil 15 to rotate through the transmission of friction force between the driving wheel 10 and the hot-rolled coil 15. In order to overcome the resistance of the rotation of the hot-rolled coil 15, a plurality of driven wheels 11 are provided on the fixed shafts 17 on both sides. As the hot-rolled coil 15 rotates, each part of the hot-rolled coil 15 can be directly blown by the air for cooling, thereby increasing the cooling effect.

[0031] In this utility model, both ends of the fixed shaft 17 are fixed on the supporting box 1, and the driven wheels 11 can freely rotate on the fixed shafts 17 to play a role of guiding and sliding. One end of the driving shaft 5 is rotatably provided on the supporting box 1, and the other end extends out of the supporting box 1 and is axially connected to the shaft body of the driving motor 4.

[0032] In this embodiment, in order to further provide a structure of the supporting box 1, the inner wall of the supporting box 1 is an inner arc surface, the outer wall of the supporting box 1 is an outer arc surface, and a plurality of support plates 2 are arranged in sequence from one end to the other end at the bottom side of the outer wall of the supporting box 1. A connecting plate 3 is arranged between adjacent support plates 2, and mounting holes 13 are arranged on the connecting plate 3. The support stability of the supporting box 1 is increased by the support plates 2, and the hot-rolled coil ventilation and cooling device can be fixedly installed on the corresponding working station through the mounting holes 13 arranged on the connecting plate 3. Among them, there are 2 fixed shafts 17, 1 driving shaft 5, and the 2 fixed shafts 17 are arranged on both sides of the driving shaft 5, and the three shafts are arranged in an arc shape, so that the cylindrical hot-rolled coil 15 can just fall on the 2 fixed shafts 17 and the middle driving shaft 5 at the same time.

[0033] In this embodiment, a plurality of first support seats 6 for installing the fixed shaft 17 are fixedly connected to the inner arc surface, and a plurality of second support seats 7 for installing the driving shaft 5 are fixedly connected to the inner arc surface. The installation strength of the fixed shaft 17 and the driving shaft 5 can be increased by the provided first support seats 6 and second support seats 7. A fixed connection or a rotational connection is adopted between the first support seat 6 and the fixed shaft 17, and a rotational connection is adopted between the second support seat 7 and the driving shaft 5.

[0034] In this embodiment, bearings 16 are embedded at both ends of the driven wheel 11, and the inner rings of the bearings 16 are fixedly sleeved on the fixed shaft 17. Through such a setting, the rotation of the driven wheel becomes smoother.

[0035] In this embodiment, a plurality of diversion grooves 12 are arranged on the outer side of the driven wheel 11. Through such a setting, the wind below can be blown upward through the diversion grooves 12, reducing the shielding area of the driven wheel 11 for the wind and increasing the flow area, thereby increasing the heat dissipation effect.

[0036] In this embodiment, a rubber sleeve is sleeved outside the driving wheel 10. Through the setting of the rubber sleeve, the friction between the driving wheel 10 and the hot-rolled coil 15 is increased, so as to better drive the rotation of the hot-rolled coil 15. Among them, the rubber sleeve should be made of a high-temperature resistant material to avoid damage when contacting the hot-rolled coil 15.

[0037] In this embodiment, in order to further increase the heat dissipation effect, the exhaust direction of the air outlet holes 9 is the vertical direction. Among them, referring to Figure 2 , when viewed from above, the multiple air outlet holes 9 can be arranged in a matrix.

[0038] The preferred embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solutions of the present utility model, and these simple modifications all fall within the protection scope of the present utility model.

[0039] In addition, it should be noted that, in the various specific technical features described in the above specific embodiments, they can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination methods.

[0040] Furthermore, any combination can be made between various different embodiments of the present utility model, as long as it does not violate the idea of the present utility model, and it should also be regarded as the content disclosed by the present utility model.

Claims

1. A hot rolled coil ventilation cooling device, characterized in that: The invention comprises a supporting box (1), wherein a cavity (14) is arranged inside the supporting box (1), a plurality of air outlet holes (9) are arranged on the upper side of the cavity (14), an air inlet port (8) connected to the cavity (14) is arranged on one end side of the supporting box (1), a driving motor (4) is installed on the other end side of the supporting box (1), a driving shaft (5) axially connected to the driving motor (4) is arranged inside the supporting box (1), fixed shafts (17) parallel to the driving shaft (5) are symmetrically arranged on both sides of the driving shaft (5), a plurality of driven wheels (11) capable of rotating relative to the fixed shaft (17) are sleeved on the fixed shaft (17), and a driving wheel (10) capable of rotating following the driving shaft (5) is sleeved on the driving shaft (5).

2. The hot rolled coil ventilation cooling device according to claim 1, characterized in that: The inner wall of the supporting box (1) is an inner arc surface, and the outer wall of the supporting box (1) is an outer arc surface; A plurality of support plates (2) are arranged on the bottom side of the outer wall of the support box (1) from one end to the other end, and a connecting plate (3) is arranged between adjacent support plates (2); The connecting plate (3) is provided with a mounting hole (13).

3. The hot rolled coil ventilation cooling device according to claim 2, characterized in that: A plurality of first support seats (6) for mounting the fixed shaft (17) are fixedly connected to the inner arc surface, and a plurality of second support seats (7) for mounting the driving shaft (5) are fixedly connected to the inner arc surface.

4. The hot rolled coil ventilation cooling device according to claim 3, characterized in that: Bearings (16) are embedded at both ends of the driven wheel (11), and the inner ring of the bearing (16) is fixedly sleeved on the fixed shaft (17).

5. The hot rolled coil ventilation cooling device according to claim 1, characterized in that: A plurality of guide grooves (12) are arranged on the outer side of the driven wheel (11).

6. The hot rolled coil ventilation cooling device according to claim 1, characterized in that: The outer cover of the driving wheel (10) is provided with a rubber sleeve.

7. The hot rolled coil ventilation cooling device according to claim 1, characterized in that: The exhaust direction of the air outlet (9) is a vertical direction.

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