Quenching water spraying device

Abstract

The utility model belongs to the field of steel and iron manufacturing, and relates to a quenching water spraying device, which solves the problem of how to uniformly spray water to a steel bar, and comprises a water spraying ring, the water spraying ring comprises an outer peripheral wall, an inner peripheral wall, a first cover plate and a second cover plate, the outer peripheral wall and the inner peripheral wall are circular, the inner peripheral wall is concentrically arranged on the inner side of the outer peripheral wall, and the first cover plate is arranged on the inner side of the inner peripheral wall; an annular inner cavity is formed between the inner circumferential wall and the outer circumferential wall, the first cover plate and the second cover plate are located at the two axial ends of the inner cavity respectively and connected with the outer circumferential wall and the inner circumferential wall at the same time, a plurality of densely-distributed water spraying holes penetrating through the inner circumferential wall in the thickness direction are formed in the inner circumferential wall, and a water spraying area is defined in the inner circumferential wall. A drainage channel is formed in the bottom of the water spraying ring and penetrates downwards from the water spraying area, and a first end plate and a second end plate for sealing the inner cavity are arranged on the two sides of the drainage channel. The number of the water inlet pipes is two, and the water inlet pipes are connected to the two opposite sides of the water spraying ring correspondingly and communicate with the inner cavity. The beneficial effect is that water spraying is more uniform.

Description

Technical Field

[0001] The utility model belongs to the field of steel manufacturing, relates to the heat treatment of steel materials, and specifically relates to a quenching water spraying device. Background Art

[0002] Wear-resistant steel rods are used as grinding media in rod mills. During the process of grinding minerals, the wear-resistant steel rods are lifted to a certain height and then thrown down to impact and crush the ore by the centrifugal force generated by the rotation of the rod mill cylinder. At the same time, the grinding action between the wear-resistant steel rods and the cylinder lining grinds the ore into ore sand and ore powder.

[0003] The wear-resistant steel rod should have sufficient rigidity to remain straight without bending during use; it needs to have sufficient toughness so that the rod does not break into pieces when it is not ground to a small enough diameter, but when it is ground to a small enough diameter, it should be able to break into small pieces so that it can be discharged from the rod mill.

[0004] Wear-resistant steel rods need to have a higher surface hardness, so they need to be quenched. In the current spray rings such as "CN207632852U", "CN117305568A" and other structures with spray heads, the water spray is concentrated on the steel rod surface where the spray head is aimed, and the water spray is less on the steel rod surface that is not aimed, resulting in poor uniformity of water spray. Utility Model Content

[0005] The utility model aims to provide a quenching water spraying device, which solves the problem of how the water spraying device sprays water more evenly on the surface of a steel rod.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] The utility model provides a quenching water spraying device, comprising:

[0008] A water spray ring, the water spray ring includes an outer peripheral wall, an inner peripheral wall, a first cover plate and a second cover plate, the outer peripheral wall and the inner peripheral wall are both annular, the inner peripheral wall is concentrically arranged on the inner side of the outer peripheral wall, an annular inner cavity is formed between the inner peripheral wall and the outer peripheral wall, the first cover plate and the second cover plate are respectively located at two axial ends of the inner cavity, and the first cover plate and the second cover plate are simultaneously connected to the outer peripheral wall and the inner peripheral wall, a plurality of densely distributed water spray holes penetrating the inner peripheral wall in the thickness direction are opened on the inner peripheral wall, the inner peripheral wall is enclosed to form a water spray area, a drainage channel is opened at the bottom of the water spray ring, the drainage channel is arranged to penetrate downward from the water spray area, and a first end plate and a second end plate that seals the inner cavity are arranged on both sides of the drainage channel;

[0009] A water inlet pipe, wherein two water inlet pipes are provided, respectively connected to two opposite sides of the water spray ring and communicated with the inner cavity.

[0010] Preferably, the drainage channel runs through the entire axial length of the water spray ring.

[0011] Furthermore, two ends of the drainage channel are blocked by the first cover plate and the second cover plate.

[0012] Preferably, a pressure gauge is provided on the water inlet pipe.

[0013] Preferably, two connecting pipes are provided on the water spray ring, and the two connecting pipes are respectively connected to the opposite sides of the water spray ring and communicated with the inner cavity. The outer edges of the outer ends of the connecting pipes are provided with flange plates I, and the outer edges of the ends of the water inlet pipes are provided with flange plates II. The flange plates I and II are provided with corresponding connecting holes and are connected by bolts and nuts.

[0014] Preferably, the water spray holes are evenly distributed on the inner peripheral wall, and the water spray holes are circular holes.

[0015] Preferably, the water spray holes are distributed in the axial direction and the radial direction.

[0016] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0017] The quenching water spraying device of the utility model changes the nozzle into a plurality of densely distributed water spraying holes on the inner peripheral wall, so that the water spraying is sprayed more evenly onto the surface of the steel rod, thereby improving the quenching uniformity. In addition, since a drainage channel is provided at the bottom of the water spraying ring, the sprayed water is discharged from the drainage channel, and the water is not allowed to gather in the water spraying area. If there is gathered water, it may block the water discharge from the water spraying holes, affecting the quenching quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0019] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model;

[0020] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 yes Figure 1 A schematic diagram after removing the first cover plate;

[0022] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0023] The reference numerals are described as follows:

[0024] 1. Water spray ring; 11. Outer wall; 12. Inner wall; 121. Water spray hole; 13. First cover plate; 14. Second cover plate; 15. Inner cavity; 16. Water spray area; 17. Drainage channel; 18. First end plate; 19. Second end plate; 2. Water inlet pipe; 3. Pressure gauge; 4. Connecting pipe; 5. Flange plate I; 6. Flange plate II; 7. Steel rod. DETAILED DESCRIPTION

[0025] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0026] like Figure 1 The quenching water spraying device shown in the figure comprises a water spraying ring 1 and a water inlet pipe 2. There are two water inlet pipes 2 which are respectively connected to both sides of the water spraying ring 1 and are used to supply water to the water spraying ring 1. The water spraying ring 1 has an inner cavity 15 (see Figure 3 ), water fills the inner cavity 15, and the water in the inner cavity 15 is sprayed out from a plurality of water spray holes 121 on the inner peripheral wall 12 of the water spray ring 1 by water pressure, and sprayed onto the surface of the steel rod 7 to quench the steel rod 7. The steel rod 7 rotates around its own axis while moving forward through the water spray ring 1, so that the circumference of the steel rod 7 is evenly sprayed and quenched.

[0027] like Figure 3 The water spray ring 1 has an outer peripheral wall 11 and an inner peripheral wall 12. Both the inner peripheral wall 12 and the outer peripheral wall 11 are annular. The inner peripheral wall 12 is arranged on the inner side of the outer peripheral wall 11 and is concentric (coaxial). An inner cavity 15 is formed between the inner peripheral wall 12 and the outer peripheral wall 11. The inner cavity 15 is annular. The thickness of the outer peripheral wall 11 is thicker than that of the inner peripheral wall 12. A plurality of densely distributed water spray holes 121 are provided on the inner peripheral wall 12. The water spray holes 121 are circular holes that penetrate the inner peripheral wall 12 in the thickness direction, and the water spray holes 121 are evenly distributed in the axial direction and the radial direction. The water spray holes 121 are used for water discharge.

[0028] The inner circle of the inner peripheral wall 12 encloses a water spraying area 16 , and the steel rod 7 passes through the water spraying area 16 .

[0029] Two connecting pipes 4 are connected to the outer peripheral wall 11. The connecting pipes 4 are arranged on both sides of the water spray ring 1, and the connecting pipes 4 are connected to the inner cavity 15. A flange plate I5 is provided at the outer end of the connecting pipe 4. A flange plate II6 is provided at one end of the water inlet pipe 2 close to the connecting pipe 4. The flange plate I5 and the flange plate II6 are provided with connecting holes that are connected to each other and are connected by bolts and nuts. The water inlet pipe 2 is connected to the connecting pipe 4, and the water inlet pipe 2 is used to connect the water source to introduce water into the water spray ring 1. The water inlet pipes 2 on both sides can speed up the efficiency of introducing water and make the water inlet on the left and right sides uniform. In other embodiments, the connecting pipe 4 may not be provided, and the water inlet pipe 2 may be directly connected to the outer peripheral wall 11. The purpose of providing the connecting pipe 4 is to facilitate the disassembly of the water spray ring 1. The outer end of the water inlet pipe 2 is also provided with a flange plate to facilitate connection with the water source.

[0030] The outer peripheral wall 11 can be supported by the connecting pipe 4 and the water inlet pipe 2. The inner peripheral wall 12 is supported by being connected to the outer peripheral wall 11 through the first cover plate 13 and the second cover plate 14. The first cover plate 13 and the second cover plate 14 are respectively connected to the ends of the outer peripheral wall 11 and the corresponding ends of the inner peripheral wall 12, connecting the outer peripheral wall 11 and the inner peripheral wall 12 as a whole. The first cover plate 13 and the second cover plate 14 close the two ends of the inner cavity 15.

[0031] The inner cavity 15 is a closed cavity. The water inlet of the water inlet pipe 2 is under pressure. The pressure acts on the inner cavity 15, so that the water in the inner cavity 15 is sprayed out from the water spray hole 121 and sprayed onto the surface of the steel rod 7. A pressure gauge 3 is also provided on the water inlet pipe 2 to monitor the pressure in the water inlet pipe 2 so as to adjust the water pressure.

[0032] like Figure 4 A drain channel 17 is provided at the bottom of the water spray ring 1. The drain channel 17 is used to discharge water in the water spray area 16 to prevent water from gathering in the water spray area 16. The drain channel 17 is set to penetrate downward from the water spray area 16. A first end plate 18 and a second end plate 19 are provided on both sides of the drain channel 17. The first end plate 18 and the second end plate 19 play the role of sealing the inner cavity 15 and guiding the water flow. The first end plate 18 and the second end plate 19 extend vertically, and in other embodiments, they can also have a certain angle with the vertical plane, such as forming an upper end flared shape between the two.

[0033] like Figure 2 The drainage channel 17 penetrates the water spray ring 1 in the axial direction to have a large drainage capacity. Figure 2 The axial ends of the drain channel 17 are covered by the first cover plate 13 and the second cover plate 14. The first cover plate 13 and the second cover plate 14 can block the water in the drain channel 17 and prevent the water in the drain channel 17 from splashing in the axial direction of the water spray ring 1.

[0034] In summary, the water spray ring 1 of this example extends a certain length in the axial direction, and a plurality of water spray holes 121 are provided on the inner peripheral wall 12 of the water spray ring 1. The water spray holes 121 can spray the surface of the steel rod 7 more evenly, thereby improving the quenching uniformity. Moreover, the drainage channel 17 can quickly discharge the sprayed water, thereby preventing the water from accumulating in the water spray area 16 in the water spray ring 1.

[0035] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A quenching water spraying device, characterized in that: include: A water spray ring (1), the water spray ring (1) comprising an outer peripheral wall (11), an inner peripheral wall (12), a first cover plate (13) and a second cover plate (14), the outer peripheral wall (11) and the inner peripheral wall (12) both being annular, the inner peripheral wall (12) being concentrically arranged on the inner side of the outer peripheral wall (11), an annular inner cavity (15) being formed between the inner peripheral wall (12) and the outer peripheral wall (11), the first cover plate (13) and the second cover plate (14) being respectively located at two axial ends of the inner cavity (15), and the first cover plate (13) and the second cover plate (14) being arranged on the inner side of the inner cavity (15). The two cover plates (14) are connected to the outer peripheral wall (11) and the inner peripheral wall (12) at the same time. The inner peripheral wall (12) is provided with a plurality of densely distributed water spray holes (121) penetrating the inner peripheral wall (12) in the thickness direction. The inner peripheral wall (12) is enclosed to form a water spray area (16). A drainage channel (17) is provided at the bottom of the water spray ring (1). The drainage channel (17) is arranged to penetrate downward from the water spray area (16). A first end plate (18) and a second end plate (19) for sealing the inner cavity (15) are arranged on both sides of the drainage channel (17); A water inlet pipe (2), wherein two water inlet pipes (2) are provided, respectively connected to two opposite sides of the water spray ring (1) and communicated with the inner cavity (15).

2. The quenching water spraying device according to claim 1, characterized in that: The drainage channel (17) runs through the entire axial length of the water spray ring (1).

3. The quenching water spraying device according to claim 2, characterized in that: Both ends of the drainage channel (17) are blocked by the first cover plate (13) and the second cover plate (14).

4. The quenching water spraying device according to claim 1, characterized in that: The water inlet pipe (2) is provided with a pressure gauge (3).

5. The quenching water spraying device according to claim 1, characterized in that: The water spray ring (1) is provided with two connecting pipes (4), the two connecting pipes (4) are respectively connected to opposite sides of the water spray ring (1) and communicated with the inner cavity (15), the outer edges of the outer ends of the connecting pipes (4) are provided with flange plates I (5), the outer edges of the ends of the water inlet pipe (2) are provided with flange plates II (6), the flange plates I (5) and II (6) are provided with connecting holes that are connected to each other and are connected by bolts and nuts.

6. The quenching water spraying device according to claim 1, characterized in that: The water spray holes (121) are evenly distributed on the inner peripheral wall (12), and the water spray holes (121) are circular holes.

7. The quenching water spraying device according to claim 1, characterized in that: The water spray holes (121) are distributed in the axial direction and the radial direction.

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