Quenching cooling device for heat treatment of wear-resistant steel bar

Abstract

The utility model relates to the technical field of cooling, in particular to a quenching cooling device for heat treatment of a wear-resistant steel bar, which comprises a box body, small holes and supporting legs, the small holes for the steel bar to pass through are formed in the middles of two sides of the box body, the supporting legs are mounted at four corners of the lower end of the box body, and a water storage tank is mounted at the upper end of the box body. A water storage tank is arranged in the box body, a spraying assembly capable of spraying steel bars in the box body is installed on the water storage tank, the bottom end of the interior of the box body is communicated with the upper end of the water storage tank through a circulation assembly, and a cooling box capable of cooling the circulation assembly is arranged at the lower end of the box body. According to the steel bar cooling device, spraying can be conducted on a steel bar located in the box body, then the steel bar can be cooled, and four water spraying pipes are arranged in a rectangular distribution mode, so that water can be sprayed on the steel bar in the circumferential direction at multiple angles, the steel bar is cooled more evenly on the circumferential section, and the quality effect of the steel bar can be improved easily.

Description

Technical Field

[0001] The utility model belongs to the technical field of cooling, and in particular relates to a quenching cooling device for heat treatment of wear-resistant steel bars. Background Art

[0002] Prestressed concrete steel bars, referred to as steel bars, are a type of prestressed steel with a high technical content. Due to its high strength and toughness, low relaxation, strong bond strength with concrete, good weldability, upsetting properties, and material saving, it has been widely used in high-strength prestressed concrete centrifugal pipe piles, electric poles, viaduct piers, railway sleepers and other prestressed components abroad. Quenching equipment is required in the production of steel bars.

[0003] However, when the existing steel bar quenching device is used, the steel bar needs to be cooled after being heated at high temperature by the induction normalizing coil. The existing cooling method for the steel bar is mostly spray cooling on the upper surface of the steel bar, which makes the cooling of the steel bar uneven on the circumferential cross section, affecting the quality of the steel bar. In addition, the water after spraying is mostly discharged directly, wasting water resources. Therefore, how to overcome the above-mentioned technical problems and defects has become a key issue that needs to be solved. Utility Model Content

[0004] The purpose of the invention of the utility model is to overcome the defects in the background technology that when cooling the steel bar, the upper surface of the steel bar is mostly sprayed for cooling, the cooling of the steel bar on the circumferential cross section is uneven, which affects the quality of the steel bar, and the water after spraying is mostly discharged directly, which wastes water resources, thereby realizing a quenching cooling device for heat treatment of wear-resistant steel bars.

[0005] In order to achieve the above-mentioned purpose of the invention, the technical solution of the utility model is: a quenching cooling device for heat treatment of wear-resistant steel bars, comprising a box body, a small hole and a supporting leg, small holes for the steel bars to pass through are opened in the middle of both sides of the box body, and supporting legs are installed at the four corners of the lower end of the box body, and a water storage tank is installed at the upper end of the box body, and a spraying assembly is installed on the water storage tank for spraying the steel bars inside the box body, the inner bottom end of the box body is connected to the upper end of the water storage tank through a circulation assembly, and the lower end of the box body is provided with a cooling box for cooling the circulation assembly, and a cooling assembly is installed at the upper end of one side of the cooling box.

[0006] In the above-mentioned quenching and cooling device for heat treatment of wear-resistant steel bars, the spraying assembly includes a water suction pipe, a water pump, a water spray pipe and a water spray head. The water storage tank is connected to the interior of the box body through the water suction pipe. The water suction pipe is installed with a water pump. The water suction pipe located inside the box body is connected to a water spray pipe. The water spray pipe is installed with several spray heads that can spray the steel bars.

[0007] In the above-mentioned quenching and cooling device for heat treatment of wear-resistant steel bars, there are four water spray pipes, and the water spray pipes are distributed in a rectangular shape. Each of the water spray pipes is connected by a connecting pipe, and each of the water spray pipes is equipped with a spray head that can spray the steel bars.

[0008] In the above-mentioned quenching and cooling device for heat treatment of wear-resistant steel bars, there are four water spray pipes, and the water spray pipes are distributed in a rectangular shape. Each of the water spray pipes is connected by a connecting pipe, and each of the water spray pipes is equipped with a spray head that can spray the steel bars.

[0009] In the above-mentioned quenching and cooling device for heat treatment of wear-resistant steel bars, the circulation component includes a circulation pipe and a circulation pump. One end of the circulation pipe is connected to the inner bottom end of the box body, and the other end of the circulation pipe passes through the cooling box and is connected to the upper end of the water storage tank. A circulation pump is installed on the circulation pipe.

[0010] In the above-mentioned quenching and cooling device for heat treatment of wear-resistant steel bars, the circulation pipes located inside the cooling box are distributed in a serpentine shape.

[0011] In the above-mentioned quenching and cooling device for heat treatment of wear-resistant steel bars, a filter screen is installed at the lower end of the interior of the box, and the filter screen is in an inverted V shape.

[0012] In the above-mentioned quenching cooling device for heat treatment of wear-resistant steel bars, the cooling component includes a semiconductor refrigeration plate and a heat sink plate. The semiconductor refrigeration plate is installed on the cooling box, and the heat sink plate is installed on the semiconductor refrigeration plate.

[0013] In the above-mentioned quenching and cooling device for heat treatment of wear-resistant steel bars, heat dissipation fans are symmetrically installed on both sides of the upper end of the cooling box.

[0014] Compared with the prior art, the quenching and cooling device for heat treatment of wear-resistant steel bars of the present invention has at least the following features:

[0015] Beneficial effects:

[0016] 1. The quenching and cooling device for heat treatment of wear-resistant steel bars of the utility model can spray the steel bars inside the box through the design of the water storage tank and the spraying assembly, thereby cooling the steel bars. Moreover, the four water spraying pipes are arranged in a rectangular shape, so that water can be sprayed on the steel bars at multiple angles in the circumferential direction, so that the cooling of the steel bars in the circumferential section is more uniform, which helps to improve the quality effect of the steel bars.

[0017] 2. The quenching and cooling device for heat treatment of wear-resistant steel bars of the utility model can cool the sprayed water and then flow it into the water storage tank again through the coordinated design of the circulation component, the cooling box and the cooling component, and then the sprayed water can be reused, which effectively saves water resources. Moreover, through the design of the filter net, the sprayed water can be filtered, which is convenient for recycling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the quenching and cooling device for heat treatment of wear-resistant steel bars of the utility model;

[0019] Figure 2 This is a schematic diagram of the rear side structure of the quenching and cooling device for heat treatment of wear-resistant steel bars of the utility model;

[0020] Figure 3 This is a partial cross-sectional structural diagram of a quenching and cooling device for heat treatment of wear-resistant steel bars of the present invention;

[0021] Figure 4 The utility model is a schematic diagram of the installation structure of a cooling box, a circulation pipe, a cooling component and a heat dissipation fan of a quenching cooling device for heat treatment of wear-resistant steel bars.

[0022] In the figure: 1. Box body; 101. Small hole; 102. Support leg; 2. Water storage tank; 3. Spraying assembly; 301. Suction pipe; 302. Suction pump; 303. Connecting pipe; 304. Water spraying pipe; 305. Sprinkler head; 4. Circulation assembly; 401. Circulation pipe; 402. Circulation pump; 5. Cooling box; 6. Cooling assembly; 601. Semiconductor refrigeration plate; 602. Heat sink; 7. Filter; 8. Heat dissipation fan. DETAILED DESCRIPTION

[0023] The following is a more detailed description of the quenching and cooling device for heat treatment of wear-resistant steel bars of the present invention with reference to the accompanying drawings and through specific implementation methods.

[0024] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0025] This embodiment discloses a quenching and cooling device for heat treatment of wear-resistant steel bars. By designing a water storage tank 2 and a spraying assembly 3, the steel bars inside the box body 1 can be sprayed, thereby cooling the steel bars. Figure 1 and Figure 3 It mainly includes a box body 1, a small hole 101 and a support leg 102. The middle part of both sides of the box body 1 is provided with a small hole 101 for the steel rod to pass through. The four corners of the lower end of the box body 1 are equipped with support legs 102. The upper end of the box body 1 is equipped with a water tank 2. The water tank 2 is equipped with a spraying component 3 that can spray the steel rod inside the box body 1.

[0026] The inner bottom end of the box body 1 is connected to the upper end of the water storage tank 2 through the circulation component 4. The lower end of the box body 1 is provided with a cooling box 5 which can cool the circulation component 4. Cooling liquid is stored in the cooling box 5. A cooling component 6 is installed on the upper end of one side of the cooling box 5. Through the coordinated design of the circulation component 4, the cooling box 5 and the cooling component 6, the sprayed water can be cooled and then flow into the water storage tank 2 again, and then the sprayed water can be reused, which effectively saves water resources.

[0027] In order to spray cool the steel bars inside the box 1, in this embodiment, Figure 1 and Figure 3 The spraying assembly 3 includes a water suction pipe 301, a water pump 302, a water spraying pipe 304 and a water spraying head 305. The water storage tank 2 is connected to the interior of the box body 1 through the water suction pipe 301. The water suction pipe 301 is installed with a water suction pump 302. The water suction pipe 301 located inside the box body 1 is connected with a water spraying pipe 304. The water spraying pipe 304 is installed with several spraying heads that can spray the steel rods. When in use, start the water suction pump 302, and pump the water in the water storage tank 2 into the water spraying pipe 304 through the water suction pipe 301. Finally, the steel rods are sprayed through the spraying heads to cool the steel rods.

[0028] In order to make the spray cooling of the steel rod more uniform, in this embodiment, Figure 3 There are four water spray pipes 304, and the water spray pipes 304 are distributed in a rectangular shape. Each water spray pipe 304 is connected by a connecting pipe 303. Each water spray pipe 304 is equipped with a spray head that can spray the steel rod. Water can be sprayed on the steel rod at multiple angles in the circumferential direction, so that the steel rod is cooled more evenly on the circumferential cross section, which helps to improve the quality of the steel rod.

[0029] In order to reuse the sprayed water and save water resources, in this embodiment, referring to Figure 2 and Figure 4 The circulation component 4 includes a circulation pipe 401 and a circulation pump 402. One end of the circulation pipe 401 is connected to the bottom end of the box body 1, and the other end of the circulation pipe 401 passes through the cooling box 5 and is connected to the upper end of the water storage tank 2. The circulation pump 402 is installed on the circulation pipe 401. When in use, start the circulation pump 402, and the sprayed water at the bottom end of the box body 1 can be pumped into the water storage tank 2 through the circulation pipe 401, and then the sprayed water can be utilized, which effectively saves water resources.

[0030] In order to extend the cooling time of the water in the circulation pipe 401, in this embodiment, Figure 4 The circulation pipe 401 located inside the cooling box 5 is distributed in a serpentine shape.

[0031] In order to filter the sprayed water for reuse, in this embodiment, Figure 3 A filter screen 7 is installed at the lower end of the interior of the box body 1, and the filter screen 7 is in an inverted V shape, which allows the filter residue on the filter screen 7 to flow to both sides of the filter screen 7, which not only prevents the filter screen 7 from being blocked, but also facilitates the collection of the filter residue on the filter screen 7.

[0032] In order to cool the coolant in the cooling box 5, in this embodiment, referring to Figure 1 、 Figure 3 and Figure 4 The cooling component 6 includes a semiconductor refrigeration sheet 601 (since the semiconductor refrigeration sheet 601 belongs to the existing technology, it will not be described in detail) and a heat sink 602. The semiconductor refrigeration sheet 601 is installed on the cooling box 5, and the heat sink 602 is installed on the semiconductor refrigeration sheet 601. Through the coordinated design of the semiconductor refrigeration sheet 601 and the heat sink 602, the coolant in the cooling box 5 can be well cooled, and then the water in the circulation pipe 401 can be well cooled.

[0033] In order to better cool the coolant in the cooling box 5, in this embodiment, referring to Figure 4 , cooling fans 8 are symmetrically installed on both sides of the upper end of the cooling box 5.

[0034] The working principle of the quenching and cooling device for heat treatment of wear-resistant steel bars of the present invention is as follows: when the device is used, the steel bar to be cooled is placed inside the box body 1 through the small hole 101, the water pump 302 is started, and the water in the water storage tank 2 is pumped into the water spray pipe 304 through the water pump pipe 301. Finally, the steel bar is sprayed with water through the water spray head 305 for cooling. The four water spray pipes 304 are arranged in a rectangular shape, so that the cooling of the steel bar in the circumferential cross section can be more uniform.

[0035] The sprayed water is filtered by the filter screen 7 and flows to the bottom end of the inner part of the box body 1. The filter screen 7 is designed in an inverted V shape, which can make the filtered residue flow to both sides, effectively avoiding blockage and facilitating the collection of the filtered residue.

[0036] At this time, the circulation pump 402 is started to pump the water at the bottom end of the box body 1 into the water storage tank 2 through the circulation pipe 401. The sprayed water can be reused, which effectively saves water resources. In the process of the sprayed water passing through the circulation pipe 401, the coolant in the cooling box 5 can cool the water in the circulation pipe 401. In this process, the coolant can be cooled by the semiconductor refrigeration plate 601. Through the setting of the heat dissipation fan 8, the cooling effect of the coolant can be better, so that the water in the circulation pipe 401 can be cooled well.

[0037] It should be noted that the structures depicted in the drawings herein are not fixed, unchangeable implementations of the present invention in practice. The components of the embodiments of the present invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations. Furthermore, the drawings in this specification and the abstract are schematic only and do not represent the specific structure or actual quantities of the components in practice.

[0038] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the present invention belongs. The use of "one" or "an" and other similar words in the specification and claims of this application does not necessarily indicate a quantitative limitation. "Include" or "comprising" and other similar words mean that the elements or parts preceding the word include the elements or parts listed after the word and their equivalents, without excluding other elements or parts. "Connect" or "connected" and other similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0039] The exemplary implementation of the present invention is described in detail above with reference to the preferred embodiments. However, it can be understood by those skilled in the art that, without departing from the concept of the present invention, various variations and modifications can be made to the above-mentioned specific embodiments, and various combinations of the various technical features and structures proposed in the present invention can be made without exceeding the scope of protection of the present invention.

Claims

1. A quenching and cooling device for heat treatment of wear-resistant steel bars, comprising a box body (1), a small hole (101) and a support leg (102), wherein the box body (1) is provided with a small hole (101) in the middle of both sides for the steel bars to pass through, and the four corners of the lower end of the box body (1) are provided with support legs (102), characterized in that: A water storage tank (2) is installed at the upper end of the box body (1), and a spraying assembly (3) is installed on the water storage tank (2) for spraying the steel rod inside the box body (1); The inner bottom end of the box body (1) is connected to the upper end of the water storage tank (2) through a circulation component (4); the lower end of the box body (1) is provided with a cooling box (5) capable of cooling the circulation component (4); and a cooling component (6) is installed on one upper end of the cooling box (5).

2. The quenching and cooling device for heat treatment of wear-resistant steel bars according to claim 1, characterized in that: The spray assembly (3) comprises a water suction pipe (301), a water pump (302), a water spray pipe (304) and a water spray head (305); the water storage tank (2) is connected to the interior of the tank body (1) via the water suction pipe (301); the water suction pipe (301) is installed with the water pump (302); the water suction pipe (301) located inside the tank body (1) is connected with a water spray pipe (304); and the water spray pipe (304) is installed with a plurality of spray heads capable of spraying the steel rod.

3. The quenching and cooling device for heat treatment of wear-resistant steel bars according to claim 2, characterized in that: There are four water spray pipes (304), and the water spray pipes (304) are distributed in a rectangular shape. Each of the water spray pipes (304) is connected through a connecting pipe (303), and each of the water spray pipes (304) is equipped with a spray head that can spray the steel rod.

4. The quenching and cooling device for heat treatment of wear-resistant steel bars according to claim 1, characterized in that: The circulation assembly (4) comprises a circulation pipe (401) and a circulation pump (402); one end of the circulation pipe (401) is connected to the inner bottom end of the box body (1); the other end of the circulation pipe (401) passes through the cooling box (5) and is connected to the upper end of the water storage tank (2); and the circulation pump (402) is installed on the circulation pipe (401).

5. The quenching and cooling device for heat treatment of wear-resistant steel bars according to claim 4, characterized in that: The circulation pipe (401) located inside the cooling box (5) is distributed in a serpentine shape.

6. The quenching and cooling device for heat treatment of wear-resistant steel bars according to claim 5, characterized in that: A filter screen (7) is installed at the lower end of the interior of the box body (1), and the filter screen (7) is in an inverted V shape.

7. The quenching and cooling device for heat treatment of wear-resistant steel bars according to claim 1, characterized in that: The cooling component (6) comprises a semiconductor refrigeration plate (601) and a heat dissipation plate (602). The semiconductor refrigeration plate (601) is installed on the cooling box (5), and the heat dissipation plate (602) is installed on the semiconductor refrigeration plate (601).

8. The quenching and cooling device for heat treatment of wear-resistant steel bars according to claim 7, characterized in that: Heat dissipation fans (8) are symmetrically installed on both sides of the upper end of the cooling box (5).

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