Protective device for cooling steel after hot rolling

Abstract

The utility model relates to the technical field of steel processing, and discloses a protective device for cooling steel after hot rolling, which comprises a bottom plate, the top of the bottom plate is fixedly connected with a cooling bin, a feeding mechanism is arranged in the cooling bin, and a protective mechanism is arranged on the cooling bin; the feeding mechanism comprises a bearing plate, a motor and a supporting plate. According to the protection device for cooling after hot rolling of the steel, a motor is started to drive a lead screw to rotate, the lead screw drives a connecting block to horizontally move under limiting of a limiting rod, and therefore the connecting block drives a bearing plate to slide along the inner wall of a sliding groove, feeding and discharging of the steel are facilitated, and use is convenient; the electric telescopic rod is started to drive the protective screen plate to slide along the inner cavity of the U-shaped frame, so that the bin opening of the cooling bin is blocked, the bearing plate is isolated from the outside, internally cooled steel can be protected, and the quality of hot-rolled products is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel processing, in particular to a protective device for cooling steel after hot rolling. Background Art

[0002] Hot rolling is the opposite of cold rolling. Cold rolling is performed below the recrystallization temperature, while hot rolling is performed above the recrystallization temperature. Simply put, a billet is heated and then subjected to several rolling passes before being trimmed and straightened into a steel plate. This process can significantly reduce energy consumption and costs. During hot rolling, the metal has high plasticity and low deformation resistance, which greatly reduces the energy consumption of metal deformation. Hot rolling can improve the processing performance of metals and alloys, namely, breaking up coarse grains in the cast state, significantly healing cracks, reducing or eliminating casting defects, transforming the cast structure into a deformed structure, and improving the processing performance of the alloy.

[0003] For example, the "Equipment for producing heat-treated ultra-large diameter high-strength steel" with publication number "CN202187037U" includes a feed traction device, followed by a high-frequency induction heating device, a pre-quenching heat preservation device, a quenching device, a medium-frequency tempering heating device, and a cooling device. In the equipment for producing heat-treated ultra-large diameter high-strength steel described in the present utility model, the hot-rolled steel is directly fed into the subsequent production process, avoiding the need to reheat the hot-rolled semi-finished product, thereby saving energy to the greatest extent possible; moreover, the steel produced by the equipment described in the present utility model has both a large diameter and ultra-high strength, can withstand extremely large forces, and is fully capable of meeting the needs of high-speed rail construction.

[0004] However, the existing hot-rolled cooling technology often lacks certain protection during the cooling process, which can easily cause damage to the hot-rolled steel and lead to unstable product quality. Utility Model Content

[0005] (1) Technical problems solved

[0006] In response to the shortcomings of the prior art, the present invention provides a protective device for cooling steel after hot rolling. Its advantages lie in that a motor is activated to rotate the screw, which in turn drives the connecting block to move horizontally under the limit of a limit rod, thereby causing the connecting block to drive the load-bearing plate to slide along the inner wall of the chute, thereby facilitating the loading and unloading of steel. The device is easy to use. By activating the electric telescopic rod, the protective mesh plate slides along the inner cavity of the U-shaped frame, thereby blocking the opening of the cooling chamber and isolating the load-bearing plate from the outside world. This protects the steel being cooled inside and ensures the quality of the hot-rolled product.

[0007] (2) Technical solution

[0008] To achieve the above-mentioned object, the present invention provides the following technical solution: a protective device for cooling steel after hot rolling, comprising a bottom plate, a cooling bin fixedly connected to the top of the bottom plate, the front of the cooling bin being open, a feeding mechanism being provided inside the cooling bin, and a protective mechanism being provided on the cooling bin;

[0009] The feeding mechanism comprises: a carrying plate, a motor, and a support plate, the carrying plate being slidably connected to the inner wall of the cooling bin, and the steel is conveniently contained by the provided carrying plate, the motor being fixedly mounted on the back side of the cooling bin, the support plate being fixedly connected to the top of the bottom plate, the output end of the motor being fixedly connected to a screw rod through a coupling, the front end of the screw rod extending into the interior of the cooling bin and being rotatably connected to the back side of the support plate through a bearing, the outer wall of the screw rod being threadedly connected to a connecting block, and the top of the connecting block being fixedly connected to the bottom of the carrying plate, the screw rod being driven to rotate by starting the motor, the screw rod drives the connecting block to move horizontally under the limit of the limit rod, so that the connecting block drives the carrying plate to slide along the inner wall of the slide groove, thereby facilitating the feeding and discharging of steel and being easy to use;

[0010] The protective mechanism includes: two U-shaped frames and a bracket. The two U-shaped frames are relatively fixedly connected to the left and right sides of the cooling bin, and close to the front of the cooling bin. A protective mesh is slidably connected between the two U-shaped frames, and the mesh of the protective mesh is connected to the interior of the cooling bin to facilitate air circulation. The bracket is fixedly connected to the top front of the cooling bin. The bracket is set in an inverted "L" shape. An electric telescopic rod is fixedly installed on the inner side of the top of the bracket. The piston end of the electric telescopic rod is fixedly connected to the top of the protective mesh. By starting the electric telescopic rod, the protective mesh is driven to slide along the inner cavity of the U-shaped frame, thereby blocking the opening of the cooling bin, thereby isolating the load-bearing plate from the outside world, thereby protecting the internally cooled steel and ensuring the quality of the hot-rolled products.

[0011] Preferably, the back side of the support plate is fixedly connected to a limiting rod, the rear end of which passes through the connecting block and is fixedly connected to the inner wall of the cooling bin. The connecting block is limited by the provided limiting rod, thereby converting the rotational motion of the connecting block into horizontal movement.

[0012] Preferably, the left and right inner walls of the cooling bin are respectively provided with sliding grooves, and the supporting plate is slidably connected in the sliding grooves. The supporting plate slides along the inner walls of the sliding grooves, thereby improving the stability of the supporting plate during movement.

[0013] Preferably, a cooling mechanism is provided on the cooling bin, and the cooling mechanism includes: a liquid storage tank and a pump body. The liquid storage tank is fixedly connected to the top rear of the cooling bin, and the pump body is fixedly installed on the top of the cooling bin. The input end of the pump body is connected to the liquid storage tank through a pipeline, and the output end of the pump body is fixedly connected to a connecting pipe. The other end of the connecting pipe extends to the interior of the cooling bin, and the extended end of the connecting pipe is fixedly connected to a water spray pipe. The outer wall of the water spray pipe is fixedly connected to a plurality of atomizing nozzles. By starting the pump body, the coolant in the liquid storage tank is transported to the water spray pipe through the connecting pipe and sprayed out through the atomizing nozzle, thereby performing water cooling treatment on the steel.

[0014] Preferably, a number of cooling fans are fixedly installed at equal intervals on the top inner wall of the cooling bin and are located on the left and right sides of the water spray pipe. The steel is cooled by air by starting the cooling fans. A variety of cooling methods are available, which improves the cooling efficiency and thus improves production efficiency.

[0015] Preferably, a guide groove is provided on the top of the base plate and is located inside the cooling bin. A drain pipe is fixedly connected to the lower back of the cooling bin and is connected to the guide groove. The cooling water is guided through the guide groove and discharged through the drain pipe to avoid accumulation of cooling water in the cooling bin.

[0016] (3) Beneficial effects

[0017] Compared with the prior art, the present invention provides a protective device for cooling steel after hot rolling, which has the following beneficial effects:

[0018] 1. This protective device for cooling steel after hot rolling drives the screw to rotate by starting the motor, and the screw drives the connecting block to move horizontally under the limit of the limit rod, so that the connecting block drives the bearing plate to slide along the inner wall of the slide groove, thereby facilitating the feeding and unloading of steel. It is easy to use. By starting the electric telescopic rod, the protective mesh plate is driven to slide along the inner cavity of the U-shaped frame, thereby blocking the opening of the cooling bin, thereby isolating the bearing plate from the outside world, thereby protecting the internally cooled steel and ensuring the quality of the hot-rolled products.

[0019] 2. This protective device for cooling steel after hot rolling starts the pump to transport the coolant in the liquid storage tank through the connecting pipe to the water spray pipe, and sprays it out through the atomizing nozzle, thereby water-cooling the steel. The cooling fan is started to cool the steel by air. A variety of cooling methods are available, which improves the cooling efficiency and thus improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 It is a right side cross-sectional view of the utility model;

[0023] Figure 3 It is a top view of the utility model.

[0024] In the figure: 1. Base plate; 2. Cooling chamber; 3. Feeding mechanism; 31. Loading plate; 32. Motor; 33. Screw rod; 34. Support plate; 35. Connecting block; 36. Limiting rod; 4. Protective mechanism; 41. U-shaped frame; 42. Protective mesh plate; 43. Bracket; 44. Electric telescopic rod; 5. Cooling mechanism; 51. Liquid storage tank; 52. Pump body; 53. Connecting pipe; 54. Water spray pipe; 55. Cooling fan; 56. Guide trough; 57. Drain pipe. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Example 1

[0027] like Figure 1-3As shown, the utility model provides a protective device for cooling steel after hot rolling, comprising a bottom plate 1, a cooling bin 2 fixedly connected to the top of the bottom plate 1, an opening provided on the front of the cooling bin 2, a feeding mechanism 3 provided inside the cooling bin 2, and a protective mechanism 4 provided on the cooling bin 2; the feeding mechanism 3 comprises: a carrying plate 31, a motor 32, and a support plate 34, the carrying plate 31 being slidably connected to the inner wall of the cooling bin 2, and the steel is conveniently placed by the provided carrying plate 31, and a chute is respectively provided on the inner walls of the left and right sides of the cooling bin 2, the carrying plate 31 being slidably connected in the chute, and the carrying plate 31 slides along the inner wall of the chute, In order to improve the stability of the carrying plate 31 when moving, the motor 32 is fixedly installed on the back of the cooling bin 2, and the support plate 34 is fixedly connected to the top of the bottom plate 1. The output end of the motor 32 is fixedly connected to the screw rod 33 through a coupling. The front end of the screw rod 33 extends to the interior of the cooling bin 2 and is rotatably connected to the back of the support plate 34 through a bearing. The outer wall of the screw rod 33 is threadedly connected to a connecting block 35, and the top of the connecting block 35 is fixedly connected to the bottom of the carrying plate 31. The back of the support plate 34 is fixedly connected to a limiting rod 36. The rear end of the limiting rod 36 passes through the connecting block 35 and is fixedly connected to the inner wall of the cooling bin 2. The connecting block 35 is limited by the limit rod 36, so that the rotational movement of the connecting block 35 is converted into horizontal movement. By starting the motor 32 to drive the screw rod 33 to rotate, the screw rod 33 drives the connecting block 35 to move horizontally under the limit of the limit rod 36, so that the connecting block 35 drives the bearing plate 31 to slide along the inner wall of the slide groove, thereby facilitating the feeding and unloading of steel materials and being easy to use; the protective mechanism 4 includes: two U-shaped frames 41 and a bracket 43. The two U-shaped frames 41 are respectively fixedly connected to the left and right sides of the cooling bin 2 and close to the front of the cooling bin 2. A protective mesh plate is slidably connected between the two U-shaped frames 41. 42, and the mesh of the protective screen plate 42 is connected to the interior of the cooling bin 2 to facilitate air circulation, the bracket 43 is fixedly connected to the top front of the cooling bin 2, the bracket 43 is set in an inverted "L" shape, and an electric telescopic rod 44 is fixedly installed on the inner side of the top of the bracket 43, and the piston end of the electric telescopic rod 44 is fixedly connected to the top of the protective screen plate 42. By starting the electric telescopic rod 44, the protective screen plate 42 is driven to slide along the inner cavity of the U-shaped frame 41, thereby blocking the opening of the cooling bin 2, thereby isolating the load-bearing plate 31 from the outside world, thereby protecting the internally cooled steel and ensuring the quality of the hot-rolled products.

[0028] In this embodiment, the motor 32 is started to drive the screw rod 33 to rotate, and the screw rod 33 drives the connecting block 35 to move horizontally under the limit of the limit rod 36, so that the connecting block 35 drives the supporting plate 31 to slide along the inner wall of the slide groove, thereby facilitating the feeding and unloading of steel. It is easy to use, and the protective mesh plate 42 is driven to slide along the inner cavity of the U-shaped frame 41 by starting the electric telescopic rod 44, thereby blocking the opening of the cooling bin 2, thereby isolating the supporting plate 31 from the outside world, thereby protecting the internally cooled steel and ensuring the quality of the hot-rolled products.

[0029] Example 2

[0030] like Figure 1-3 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a cooling mechanism 5 is provided on the cooling bin 2, and the cooling mechanism 5 includes: a liquid storage tank 51 and a pump body 52. ​​The liquid storage tank 51 is fixedly connected to the top rear of the cooling bin 2, and the pump body 52 is fixedly installed on the top of the cooling bin 2. The input end of the pump body 52 is connected to the liquid storage tank 51 through a pipeline, and the output end of the pump body 52 is fixedly connected to a connecting pipe 53. The other end of the connecting pipe 53 extends to the interior of the cooling bin 2. The extended end of the connecting pipe 53 is fixedly connected to a water spray pipe 54. The outer wall of the water spray pipe 54 is fixedly connected to a plurality of atomizing nozzles. By starting the pump body 52, the coolant in the liquid storage tank 51 is passed through the connecting pipe 53 is transported to the water spray pipe 54 and sprayed out through the atomizing nozzle, so as to perform water cooling on the steel. Several cooling fans 55 are fixedly installed at equal intervals on the top inner wall of the cooling bin 2, and are located on the left and right sides of the water spray pipe 54. The steel is cooled by air by starting the cooling fans 55. A variety of cooling methods are optional, which improves the cooling efficiency and thus improves the production efficiency. A guide groove 56 is provided on the top of the bottom plate 1 and is located inside the cooling bin 2. A drain pipe 57 is fixedly connected to the lower back of the cooling bin 2 and is connected to the guide groove 56. The cooling water is guided by the guide groove 56 and discharged through the drain pipe 57 to avoid accumulation of cooling water in the cooling bin 2.

[0031] In this embodiment, the coolant in the liquid storage tank 51 is transported to the water spray pipe 54 through the connecting pipe 53 by starting the pump body 52, and is sprayed out through the atomizing nozzle, thereby water-cooling the steel. The steel is air-cooled by starting the cooling fan 55. A variety of cooling methods are available, which improves the cooling efficiency and thus improves the production efficiency.

[0032] The following is a detailed description of the working principle of this protective device for cooling steel after hot rolling.

[0033] like Figure 1-3As shown, when in use, the motor 32 is started to drive the screw rod 33 to rotate, and the screw rod 33 drives the connecting block 35 to move horizontally under the limit of the limit rod 36, so that the connecting block 35 drives the carrying plate 31 to slide along the inner wall of the slide groove, thereby facilitating the loading and unloading of steel. After the carrying plate 31 carries the steel into the cooling bin 2, the electric telescopic rod 44 is started to drive the protective mesh plate 42 to slide along the inner cavity of the U-shaped frame 41, thereby blocking the opening of the cooling bin 2, thereby isolating the carrying plate 31 from the outside, thereby protecting the internally cooled steel. The coolant in the liquid storage tank 51 is transported to the water spray pipe 54 through the connecting pipe 53 by starting the pump body 52, and sprayed out through the atomizing nozzle, thereby water-cooling the steel. At the same time, the cooling fan 55 is started to cool the steel by air. A variety of cooling methods are optional, which improves the cooling efficiency. The cooling water is guided by the provided guide groove 56 and discharged through the drain pipe 57 to avoid the accumulation of cooling water in the cooling bin 2.

Claims

1. A protective device for cooling steel after hot rolling, comprising a bottom plate (1), Features: The top of the bottom plate (1) is fixedly connected to a cooling bin (2), a feeding mechanism (3) is provided inside the cooling bin (2), and a protection mechanism (4) is provided on the cooling bin (2); The feeding mechanism (3) comprises: a bearing plate (31), a motor (32), and a support plate (34); the bearing plate (31) is slidably connected to the inner wall of the cooling bin (2); the motor (32) is fixedly mounted on the back of the cooling bin (2); the support plate (34) is fixedly connected to the top of the bottom plate (1); the output end of the motor (32) is fixedly connected to a screw rod (33) via a coupling; the front end of the screw rod (33) extends into the interior of the cooling bin (2) and is rotatably connected to the back of the support plate (34) via a bearing; the outer wall of the screw rod (33) is threadedly connected to a connecting block (35), and the top of the connecting block (35) is fixedly connected to the bottom of the bearing plate (31); The protection mechanism (4) comprises: two U-shaped frames (41) and a bracket (43); the two U-shaped frames (41) are respectively relatively fixedly connected to the left and right sides of the cooling bin (2) and close to the front of the cooling bin (2); a protection mesh plate (42) is slidably connected between the two U-shaped frames (41); the bracket (43) is fixedly connected to the top front of the cooling bin (2); the bracket (43) is arranged in an inverted "L" shape; an electric telescopic rod (44) is fixedly installed on the inner side of the top of the bracket (43); and the piston end of the electric telescopic rod (44) is fixedly connected to the top of the protection mesh plate (42).

2. A protective device for cooling steel after hot rolling according to claim 1, Features: The back side of the support plate (34) is fixedly connected to a limiting rod (36), and the rear end of the limiting rod (36) passes through the connecting block (35) and is fixedly connected to the inner wall of the cooling bin (2).

3. A protective device for cooling steel after hot rolling according to claim 1, Features: The inner walls on the left and right sides of the cooling bin (2) are respectively provided with sliding grooves, and the bearing plate (31) is slidably connected in the sliding grooves.

4. A protective device for cooling steel after hot rolling according to claim 1, Features: The cooling bin (2) is provided with a cooling mechanism (5), and the cooling mechanism (5) comprises: a liquid storage tank (51) and a pump body (52), wherein the liquid storage tank (51) is fixedly connected to the top rear of the cooling bin (2), and the pump body (52) is fixedly installed on the top of the cooling bin (2), and the input end of the pump body (52) is connected to the liquid storage tank (51) through a pipeline, and the output end of the pump body (52) is fixedly connected to a connecting pipe (53), and the other end of the connecting pipe (53) extends into the interior of the cooling bin (2), and the extended end of the connecting pipe (53) is fixedly connected to a water spray pipe (54), and the outer wall of the water spray pipe (54) is fixedly connected to a plurality of atomizing nozzles.

5. A protective device for cooling steel after hot rolling according to claim 4, Features: A plurality of cooling fans (55) are fixedly installed at equal intervals on the top inner wall of the cooling bin (2) and are located on the left and right sides of the water spray pipe (54).

6. A protective device for cooling steel after hot rolling according to claim 1, Features: A guide groove (56) is provided on the top of the bottom plate (1) and is located inside the cooling bin (2); a drainage pipe (57) is fixedly connected to the lower back of the cooling bin (2) and is in communication with the guide groove (56).

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