Cooling device for H-shaped steel after rolling

Abstract

The utility model belongs to the field of H-shaped steel production, and discloses an H-shaped steel after-rolling cooling device which comprises two symmetrically arranged spraying devices for spraying water to the H-shaped steel from the side face for cooling, and further comprises a rack device for supporting and storing water, the rack device is provided with two recycling devices used for collecting steam to be condensed and recycled, the two recycling devices are arranged in a central symmetry mode, and the spraying devices are installed on the two sides of the rack device; the rack device comprises a supporting frame, two baffles are symmetrically arranged at the two ends of the supporting frame, and two outer water tanks are symmetrically arranged on the two sides of the supporting frame. According to the cooling device for the H-shaped steel after rolling, water resources are saved through the arrangement of sucking water vapor, condensing and recycling; through the arrangement of collecting water vapor for cyclic utilization, diffusion of the water vapor is avoided, and the working environment is improved; the inner water tank and the outer water tank are communicated with each other, so that water liquid can be recycled and reused.

Description

Technical Field

[0001] The utility model belongs to the field of H-shaped steel production, in particular to a cooling device for H-shaped steel after rolling. Background Art

[0002] The cooling process of H-beam after rolling is a complex heat transfer process, which includes radiation heat transfer, convection heat transfer, contact heat transfer between strip and heat output roller, and latent heat of phase change generated by phase change during the cooling process. Among them, water-cooled convection heat transfer is also related to many factors such as the material of the strip, the final rolling temperature, thickness, speed, the amount of cooling water, water pressure, water temperature and water flow movement form, as well as the equipment working conditions of the cooling device.

[0003] In contrast, the Chinese patent with announcement number CN218424821U discloses a post-rolling cooling device for H-beam, including cooling units respectively arranged on both sides of the H-beam, the cooling unit including a guide groove vertically arranged on the side of the H-beam wing plate and a plurality of water spray pipes evenly distributed in the guide groove, a plurality of through holes evenly distributed on the guide groove and the plurality of through holes are aligned with the middle position of the H-beam wing plate, a funnel-shaped nozzle is arranged at the end of the water spray pipe and the funnel-shaped nozzle is arranged in the through hole, the plurality of water spray pipes are connected to a water distribution pipe, the water distribution pipe is connected to a water supply pipe, and a water pressure regulating valve is arranged on the water supply pipe.

[0004] However, the above patent lacks the recycling of water vapor, and water vapor is easy to diffuse, which not only causes waste of water resources, but also worsens the working environment. Therefore, a new device needs to be designed. Utility Model Content

[0005] The utility model aims to provide a cooling device for H-beam after rolling to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A post-rolling cooling device for H-shaped steel comprises a spraying device for spraying water from the side to cool the H-shaped steel, two spraying devices are symmetrically arranged, and a frame device for supporting and storing water liquid, a recovery device for collecting steam condensation for recycling is arranged on the frame device, two recovery devices are symmetrically arranged at the center, and the spraying devices are installed on both sides of the frame device; the frame device comprises a support frame, two baffles are symmetrically arranged at both ends of the support frame, two outer water tanks are symmetrically arranged on both sides of the support frame, an inner water tank is arranged at the bottom of the support frame, and the inner water tank and the outer water tank are connected by pipelines; the recovery device comprises an air supply pipe, a cross-flow fan is arranged in the middle of the air supply pipe, an air collecting hood is arranged at the top of the air supply pipe, and a plurality of guide plates are evenly distributed in the middle of the air supply pipe, and the guide plates are close to the bottom of the air supply pipe.

[0008] Furthermore: the spraying device includes a submersible pump, a filter head is installed on the bottom plate of the submersible pump, a water pipe is arranged on the submersible pump, an electric control valve is installed on the water pipe, a water equalizing pipe is arranged on the top of the water pipe, and a plurality of nozzles are evenly distributed on the water equalizing pipe.

[0009] Furthermore: the sprinkler head is arranged horizontally, and the water equalizing pipe and the water delivery pipe are welded together.

[0010] Furthermore: the baffle is made of 204 stainless steel, and the baffle and the support frame are connected by bolts.

[0011] Furthermore: the air collecting hood is trumpet-shaped, and the air collecting hood and the air delivery pipe are connected by bolts.

[0012] Furthermore: the guide plate and the gas pipe are welded together.

[0013] Compared with the prior art, the beneficial effects are:

[0014] 1. By extracting and condensing water vapor for recycling, water resources are saved;

[0015] 2. By collecting and recycling water vapor, the diffusion of water vapor is avoided and the working environment is improved;

[0016] 3. The connection between the inner and outer water tanks ensures the repeated recycling of water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a post-rolling cooling device for H-shaped steel described in the utility model;

[0018] Figure 2 This is a schematic diagram of a spraying device of an H-beam post-rolling cooling device described in the utility model;

[0019] Figure 3 This is a schematic diagram of a frame device of an H-beam post-rolling cooling device described in the utility model;

[0020] Figure 4 It is a schematic diagram of a recovery device of an H-beam post-rolling cooling device described in the utility model.

[0021] In the accompanying drawings: 1. Spraying device; 101. Submersible pump; 102. Filter head; 103. Water pipe; 104. Water equalizing pipe; 105. Nozzle; 106. Electric control valve; 2. Rack device; 201. Support frame; 202. Baffle; 203. External water tank; 204. Internal water tank; 3. Recovery device; 301. Cross-flow fan; 302. Air pipe; 303. Air collecting hood; 304. Guide plate. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 A post-rolling cooling device for H-beams includes a spraying device 1 for spraying water to cool the H-beam from the side, two spraying devices 1 are symmetrically arranged, and also includes a frame device 2 for supporting and storing water liquid, and a recovery device 3 for collecting steam condensation for recycling is arranged on the frame device 2, and two recovery devices 3 are symmetrically arranged around the center, and the spraying devices 1 are installed on both sides of the frame device 2.

[0024] In this embodiment: the spraying device 1 includes a submersible pump 101, a filter head 102 is installed on the bottom plate of the submersible pump 101, a water pipe 103 is arranged on the submersible pump 101, an electric control valve 106 is installed on the water pipe 103, a water averaging pipe 104 is arranged at the top of the water pipe 103, the water averaging pipe 104 and the water pipe 103 are welded together, a plurality of nozzles 105 are evenly distributed on the water averaging pipe 104, and the nozzles 105 are arranged horizontally. The submersible pump 101 extracts the water in the outer water tank 203 through the filter head 102, and sends it into the water averaging pipe 104 through the water pipe 103, and finally sprays it from the nozzle 105, and sprays it from both sides to the H-shaped steel for cooling;

[0025] In this embodiment: the rack device 2 includes a support frame 201, two baffles 202 are symmetrically arranged at both ends of the support frame 201, the baffles 202 are made of 204 stainless steel material, the baffles 202 and the support frame 201 are bolted, two outer water tanks 203 are symmetrically arranged on both sides of the support frame 201, an inner water tank 204 is arranged at the bottom of the support frame 201, the inner water tank 204 and the outer water tank 203 are connected by pipelines, the H-shaped steel is rolled and passed through the middle of the support frame 201, the outer water tank 203 and the inner water tank 204 are connected to ensure the use of water, the unvaporized water falls into the inner water tank 204, and flows back to the outer water tank 203 through the pipeline for standby, the vaporized water floats upward and is blocked by the baffle 202 to avoid overflowing the support frame 201;

[0026] In this embodiment: the recovery device 3 includes an air pipe 302, a cross-flow fan 301 is arranged in the middle of the air pipe 302, an air collecting hood 303 is arranged at the top of the air pipe 302, the air collecting hood 303 is trumpet-shaped, the air collecting hood 303 and the air pipe 302 are bolted, a number of guide plates 304 are evenly distributed in the middle of the air pipe 302, the guide plates 304 and the air pipe 302 are welded together, the guide plates 304 are close to the bottom of the air pipe 302, the cross-flow fan 301 sucks water vapor through the air collecting hood 303, and makes the water vapor flow along the air pipe 302 to cool down, and finally re-condenses into water droplets on the guide plates 304, and falls along the guide plates 304 to the outer water tank 203 for recycling.

[0027] Working principle: After H-shaped steel is rolled, it passes through the middle of the support frame 201. The submersible pump 101 extracts water from the outer water tank 203 through the filter head 102, and sends it to the water equalizing pipe 104 through the water pipe 103, and finally sprays it out from the nozzle 105, spraying it from both sides to the H-shaped steel for cooling. The unvaporized water falls into the inner water tank 204 and flows back to the outer water tank 203 through the pipeline for standby use. The vaporized water floats upward and is blocked by the baffle 202 to avoid overflowing the support frame 201. At the same time, the cross-flow fan 301 draws water vapor through the air collecting hood 303, and makes the water vapor flow along the air pipe 302 for cooling, and finally re-condenses into water droplets on the guide plate 304, and falls along the guide plate 304 to the outer water tank 203 for recycling.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cooling device for H-beam after rolling, comprising a spraying device for spraying water from the side to cool the H-beam, wherein two spraying devices are symmetrically arranged, and characterized in that: It also includes a frame device for supporting and storing water liquid, the frame device is provided with a recovery device for collecting steam condensation for recycling, two recovery devices are centrally symmetrically arranged, and the spraying device is installed on both sides of the frame device; The rack device comprises a support frame, two baffles are symmetrically arranged at both ends of the support frame, two outer water tanks are symmetrically arranged on both sides of the support frame, an inner water tank is arranged at the bottom of the support frame, and the inner water tank is connected to the outer water tank by pipeline; The recovery device comprises an air pipe, a cross-flow fan is arranged in the middle of the air pipe, an air collecting hood is arranged at the top of the air pipe, a plurality of guide plates are evenly distributed in the middle of the air pipe, and the guide plates are close to the bottom of the air pipe.

2. The H-beam post-rolling cooling device according to claim 1 is characterized in that: The spraying device comprises a submersible pump, a filter head is installed on the bottom plate of the submersible pump, a water pipe is arranged on the submersible pump, an electric control valve is installed on the water pipe, a water equalizing pipe is arranged on the top of the water pipe, and a plurality of nozzles are evenly distributed on the water equalizing pipe.

3. The H-beam post-rolling cooling device according to claim 2 is characterized in that: The nozzle is arranged horizontally, and the water equalizing pipe and the water delivery pipe are welded together.

4. The H-beam post-rolling cooling device according to claim 1, characterized in that: The baffle is made of 204 stainless steel, and the baffle is connected to the support frame with bolts.

5. The H-beam post-rolling cooling device according to claim 1, characterized in that: The air collecting hood is trumpet-shaped, and the air collecting hood and the air delivery pipe are connected with bolts.

6. The H-beam post-rolling cooling device according to claim 1, characterized in that: The guide plate and the gas delivery pipe are welded together.

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