Stainless steel hot-rolled coil water cooling device

Abstract

The invention relates to the technical field of hot-rolled coil water cooling, in particular to a stainless steel hot-rolled coil water cooling device. A plurality of supporting blocks are annularly distributed at the bottom in the cooling chamber along the center axis of the cooling chamber and fixed to the movable end of a telescopic rod, the telescopic rod is arranged on the upper side of the base, transverse pipes are rotationally arranged in the centers of the two ends of the cooling chamber, and the inner ends of the transverse pipes are fixedly connected with one ends of U-shaped pipes; a plurality of fine holes are formed in the U-shaped pipe communicated with the water inlet pipe in the length direction, the other end of the water inlet pipe is connected with a high-pressure water pump, the other transverse pipe is connected with one end of an air outlet pipe through a rotary joint, a plurality of air inlets are formed in the U-shaped pipe communicated with the air outlet pipe in the length direction, the other end of the air outlet pipe is connected with an air extracting pump, and the two transverse pipes are connected with a rotary driving device; and damage to the telescopic rod caused by the fact that the high end is transmitted to the telescopic rod through the supporting block is avoided, and more uniform heat dissipation can be achieved through the mode that heat dissipation is conducted on the stainless steel hot-rolled coil rotationally.

Description

Technical Field

[0001] The invention relates to the technical field of hot rolled coil water cooling, and in particular to a water cooling device for a stainless steel hot rolled coil. Background Art

[0002] At present, in the production process of stainless steel, after hot rolling and laminar cooling, the temperature of hot rolled coils is still at a high temperature of 640-850℃, which requires air cooling in the hot coil warehouse before entering the next process of hot annealing and pickling. The existing conventional cooling methods for hot rolled coils are mainly air cooling and air cooling. Taking the summer environment as an example, the air cooling time of hot rolled coils is about 3 days, and the air cooling time is about 1.5 days; due to the long cooling time, the capacity of the hot coil warehouse is very tight, resulting in a production capacity bottleneck, and production efficiency cannot be improved.

[0003] Therefore, designing an efficient and safe hot-rolled stainless steel coil is a problem that currently needs to be solved by those skilled in the art. Summary of the invention

[0004] In order to solve the deficiencies in the prior art, the present invention provides a water-cooling device for hot-rolled stainless steel coils.

[0005] The technical solution of the present invention is:

[0006] The present invention provides a water-cooling cooling device for hot-rolled stainless steel coils, comprising a base, a cooling chamber is arranged on the upper part of the base, a plurality of support blocks are distributed in a ring shape along the central axis of the cooling chamber in the bottom of the cooling chamber, the support blocks are fixed to the movable end of a telescopic rod, the telescopic rod is arranged on the upper side of the base, the movable end of the telescopic rod passes through the bottom of the cooling chamber and is located inside the cooling chamber, cross tubes are rotatably arranged at the centers of both ends of the cooling chamber, the inner ends of the cross tubes are fixedly connected to one end of a U-shaped tube, one of the cross tubes is connected to one end of a water inlet pipe through a rotating joint, the U-shaped tube connected to the water inlet pipe is provided with a plurality of fine holes along the length direction, the other end of the water inlet pipe is connected to a high-pressure water pump, the other cross tube is connected to one end of an air outlet pipe through a rotating joint, the U-shaped tube connected to the air outlet pipe is provided with a plurality of air inlets in the extension direction, the other end of the air outlet pipe is connected to an air suction pump, and the two cross tubes are connected to a rotating driving device.

[0007] Furthermore, the cooling chamber is divided into a lower chamber and an upper chamber, which are combined to form a complete cylindrical cooling chamber, one side of the lower chamber and the upper chamber are connected by a hinge assembly, and the central axis of the cylindrical cooling chamber is horizontal.

[0008] Furthermore, the bottom of each support block is connected to at least two telescopic rods, and the telescopic rods are preferably hydraulic rods.

[0009] Furthermore, a heat insulation layer is provided on the inner wall of the cooling chamber.

[0010] Furthermore, the heat insulation layer is heat insulation cotton.

[0011] Furthermore, an arc-shaped support seat is arranged on the upper side of the base, the upper side of the support seat is a concave surface sunken downward, and the fixed part of the telescopic rod is fixedly connected to the concave surface of the support seat.

[0012] Furthermore, the bottom of the lower chamber is fixedly connected to the base via a support frame.

[0013] Furthermore, the telescopic rods connected to the same supporting block are grouped together, and at least three groups of telescopic rods are provided.

[0014] Furthermore, a handle is provided at one end of the upper chamber away from the hinge assembly.

[0015] Furthermore, the fine holes and the air inlet are arranged on both sides of the corresponding U-shaped tube and face the extending direction of the gap between the cooling chamber and the hot-rolled stainless steel coil.

[0016] The beneficial effects achieved by the present invention are:

[0017] The working principle of the present invention is as follows: first, the working rotary drive device drives the horizontal tube to rotate, so that the two U-shaped tubes are located in the lower half of the cooling chamber, the upper chamber is opened, and the stainless steel hot-rolled coil is placed in the lower chamber by means of a lifting device, and supported at different positions of the bottom circumference of the stainless steel hot-rolled coil by means of a plurality of support blocks, the upper chamber is closed, and the length of the telescopic rod is adjusted in advance so that the stainless steel hot-rolled coil is coaxially arranged with the cooling chamber, and then the two U-shaped tubes are adjusted to positions symmetrical on both sides of the cooling chamber. At this time, the two U-shaped tubes are respectively located on both sides of the stainless steel hot-rolled coil, the high-pressure water pump and the vacuum pump are working, and the U-shaped tube connected to the water inlet pipe sprays water mist through the fine holes, and the water mist moves along the extension direction of the gap between the cooling chamber and the stainless steel hot-rolled coil, and quickly fills the cooling chamber. The gap is used to dissipate heat on the surface of the stainless steel hot-rolled coil. Since the surface temperature of the stainless steel hot-rolled coil reaches hundreds of degrees, the water mist can quickly absorb heat and vaporize. The water vapor is quickly extracted with the air through the air inlet to ensure the timely discharge of high-temperature gas. During the heat dissipation process, the two horizontal tubes rotate synchronously. When the U-shaped tube moves to the position of the support block, the corresponding telescopic rod contracts, driving the support block to make way for the U-shaped tube. When the U-shaped tube passes over the support block, the telescopic rod extends to reset the support block and continue to support the stainless steel hot-rolled coil. This design can alternately dissipate heat on the support block to avoid damage to the high end by transmitting it to the telescopic rod through the support block, and the rotating heat dissipation method for the stainless steel hot-rolled coil can achieve more uniform heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is along Figure 1 A cross-sectional view of the AA line;

[0020] Figure 3 yes Figure 2 A partial enlarged view of part I. DETAILED DESCRIPTION

[0021] To facilitate those skilled in the art to understand the present invention, specific implementations of the present invention are described below with reference to the accompanying drawings.

[0022] like Figures 1 to 3 As shown, the present invention provides a water-cooling cooling device for hot-rolled stainless steel coils, including a base 1, a cooling chamber 2 is arranged on the upper part of the base 1, and the cooling chamber is divided into a lower chamber 201 and an upper chamber 202. The bottom of the lower chamber is fixedly connected to the base through a support frame, and the lower chamber 201 and the upper chamber 202 are combined to form a complete cylindrical cooling chamber. The lower chamber 201 and one side of the upper chamber 202 are connected by a hinge assembly. The central axis of the cylindrical cooling chamber is horizontal, and a plurality of support blocks 3 are distributed in an annular manner along the central axis of the cooling chamber at the bottom of the lower chamber. The support blocks are fixed to the movable end of the telescopic rod 4, and the telescopic rod 4 is arranged on the upper side of the base. The movable end of the telescopic rod 4 passes through the bottom of the lower chamber and is located in the cooling chamber The stainless steel hot-rolled coil 11 is supported by a number of support blocks and is located at the center of the cooling chamber. Transverse tubes 5 are rotatably arranged at the centers of both ends of the cooling chamber. The inner ends of the transverse tubes 5 are fixedly connected to one end of the U-shaped tube 10. The U-shaped tube is wound around the outside of the stainless steel hot-rolled coil. One of the transverse tubes is connected to one end of the water inlet pipe through a rotating joint. The U-shaped tube connected to the water inlet pipe has a number of fine holes 6 along the length direction. The other end of the water inlet pipe is connected to a high-pressure water pump. The other transverse tube is connected to one end of the air outlet pipe through a rotating joint. The U-shaped tube connected to the air outlet pipe has a number of air inlets in the extension direction. The other end of the air outlet pipe is connected to the vacuum pump. Both transverse tubes are connected to a rotating drive device.

[0023] The support block 3 is an arc with a concave upper side. At least two telescopic rods are connected to the bottom of each support block 3. The telescopic rods are preferably hydraulic rods. The hydraulic rods are powerful and can better support the hot-rolled coils through the support blocks. The arrangement of at least two telescopic rods connected to the bottom of each support block 3 can ensure the stability of the support blocks.

[0024] An insulation layer is provided on the inner wall of the cooling chamber, and the insulation layer is preferably made of insulation cotton. This design can reduce the heat transfer from the hot-rolled coil to the surface of the cooling chamber, and avoid scalding the staff by the high-temperature surface of the cooling chamber.

[0025] An arc-shaped support seat 7 is arranged on the upper side of the base, and the upper side of the support seat is a concave surface that is sunken downwards, and the fixed part of the telescopic rod is fixedly connected to the concave surface of the support seat. This design can more conveniently and stably fix the telescopic rod. The telescopic rods connected to the same support block are a group, and at least three groups of telescopic rods are arranged.

[0026] The rotary drive device comprises a motor 8 on the base, and the output shaft of the motor is connected to the corresponding cross tube through a sprocket assembly.

[0027] A handle 9 is provided at one end of the upper chamber 202 away from the hinge assembly, through which the upper chamber can be opened upward relative to the lower chamber more conveniently, and is also convenient to close.

[0028] like Figure 3 As shown, the fine holes 6 and the air inlet are opened on both sides of the corresponding U-shaped tube and face the extending direction of the gap between the cooling chamber and the hot-rolled stainless steel coil.

[0029] Working principle: First, the rotary drive device drives the horizontal tube to rotate, so that the two U-shaped tubes are located in the lower half of the cooling chamber, the upper chamber is opened, and the stainless steel hot-rolled coil is placed in the lower chamber through the lifting equipment. Figure 2 As shown, the stainless steel hot-rolled coil is supported at different positions of the bottom circumference by a number of support blocks, the upper chamber is closed, the length of the telescopic rod is adjusted in advance, the stainless steel hot-rolled coil is coaxially arranged with the cooling chamber, and then the two U-shaped tubes are adjusted to be symmetrically located on both sides of the cooling chamber. At this time, the two U-shaped tubes are respectively located on both sides of the stainless steel hot-rolled coil, the high-pressure water pump and the vacuum pump are working, and the U-shaped tube connected to the water inlet pipe sprays water mist through the fine holes. The water mist moves along the extension direction of the gap between the cooling chamber and the stainless steel hot-rolled coil, quickly fills the gap, and dissipates heat on the surface of the stainless steel hot-rolled coil. Since the surface temperature of the stainless steel hot-rolled coil reaches several Above Baidu, water mist can quickly absorb heat and vaporize, and the water vapor is quickly extracted with the air through the air inlet to ensure the timely discharge of high-temperature gas. During the heat dissipation process, the two horizontal tubes rotate synchronously. When the U-shaped tube moves to the position of the support block, the corresponding telescopic rod contracts, driving the support block to make way for the U-shaped tube. When the U-shaped tube passes over the support block, the telescopic rod extends to reset the support block and continue to support the stainless steel hot-rolled coil. This design can alternately dissipate heat to the support block to avoid damage to the high end by transmitting it to the telescopic rod through the support block, and the rotating heat dissipation method for the stainless steel hot-rolled coil can achieve more uniform heat dissipation.

[0030] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Water-cooling device for hot-rolled stainless steel coils, characterized in that: It includes a base, a cooling chamber is arranged on the upper part of the base, a plurality of support blocks are distributed in a ring along the central axis of the cooling chamber in the bottom of the cooling chamber, the support blocks are fixed to the movable end of the telescopic rod, the telescopic rod is arranged on the upper side of the base, the movable end of the telescopic rod passes through the bottom of the cooling chamber and is located inside the cooling chamber, cross pipes are rotatably arranged at the centers of both ends of the cooling chamber, the inner ends of the cross pipes are fixedly connected to one end of the U-shaped pipe, one of the cross pipes is connected to one end of the water inlet pipe through a rotating joint, the U-shaped pipe connected to the water inlet pipe has a plurality of fine holes along the length direction, the other end of the water inlet pipe is connected to a high-pressure water pump, the other cross pipe is connected to one end of the air outlet pipe through a rotating joint, the U-shaped pipe connected to the air outlet pipe has a plurality of air inlets in the extension direction, the other end of the air outlet pipe is connected to the vacuum pump, and the two cross pipes are connected to the rotating drive device.

2. The water-cooling device for hot-rolled stainless steel coil according to claim 1, characterized in that: The cooling chamber is divided into a lower chamber and an upper chamber, which are combined to form a complete cylindrical cooling chamber. One side of the lower chamber and the upper chamber is connected by a hinge assembly, and the central axis of the cylindrical cooling chamber is horizontal.

3. The water-cooling device for hot-rolled stainless steel coil according to claim 2, characterized in that: The bottom of each support block is connected to at least two telescopic rods, and the telescopic rods are preferably hydraulic rods.

4. The water-cooling device for hot-rolled stainless steel coil according to claim 1, characterized in that: The inner wall of the cooling chamber is provided with a heat insulating layer.

5. The water-cooling device for hot-rolled stainless steel coil according to claim 4, characterized in that: The insulation layer is insulation cotton.

6. The water-cooling device for hot-rolled stainless steel coil according to claim 1, characterized in that: An arc-shaped support seat is arranged on the upper side of the base, the upper side of the support seat is a concave surface sunken downwards, and the fixed part of the telescopic rod is fixedly connected to the concave surface of the support seat.

7. The water-cooling device for hot-rolled stainless steel coil according to claim 2, characterized in that: The bottom of the lower chamber is fixedly connected to the base through a supporting frame.

8. The water-cooling device for hot-rolled stainless steel coil according to claim 6, characterized in that: The telescopic rods connected to the same supporting block are grouped as one, and at least three groups of telescopic rods are arranged.

9. The water-cooling device for hot-rolled stainless steel coil according to claim 2, characterized in that: A handle is arranged at one end of the upper chamber away from the hinge assembly.

10. The water-cooling device for hot-rolled stainless steel coil according to claim 1, characterized in that: The fine holes and the air inlet are arranged on both sides of the corresponding U-shaped tube and face the extending direction of the gap between the cooling chamber and the hot-rolled stainless steel coil.

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