Back blowing nozzle of bar cold cooling water tank

Abstract

The utility model discloses a back flushing nozzle of a bar cold cooling water tank, which relates to the technical field of steel rolling nozzles and comprises an inlet flange and a back flushing mechanism. A nozzle mounting seat is fixedly mounted on the left side of the inlet flange; an annular contact groove is formed in the surface of the nozzle mounting seat; the back flushing mechanism comprises a pointed nozzle and a bush, the pointed nozzle is slidably mounted in the nozzle mounting seat, the circular sealing ring is slidably connected to the surface of the pointed nozzle in a sleeving manner, an annular clamping groove is formed in the surface of the pointed nozzle, the bush is slidably clamped in the annular clamping groove, and water is sprayed outwards through a conical nozzle pipe; the opening of the conical nozzle pipe is small in left and large in right, so that the water blocking effect of the reverse blowing nozzle is more stable; the cooling effect of the positive nozzle is not affected, meanwhile, the water carrying prevention effect is good, cooling water and water vapor are controlled to be discharged in the box body, and the normal working environment of a workshop is not affected; and the flow and the water pressure of cooling water can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of steel rolling nozzles, in particular to a bar material cold cooling water tank back-blowing nozzle. Background Art

[0002] After rolled steel pieces come out of the rolling mill, they need to pass through a water cooling device for cooling. The water cooling device currently used for hot-rolled bars and wire production lines is a water tank with the outermost layer welded with steel plates. The forward blowing nozzle, cooling nozzle and reverse blowing nozzle are arranged in sequence in the water tank.

[0003] In bar rolling production, water tanks are often needed for temperature control and rolling control so that the bars can obtain the expected mechanical properties and metallographic structure; however, unreasonable backblowing nozzle design will affect the cooling water ring formed by the nozzle, resulting in poor cooling uniformity, and at the same time, it is impossible to prevent the water tank from carrying water. Utility Model Content

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a bar cooling water tank backblowing nozzle, which can solve the problem that unreasonable backblowing nozzle design will affect the cooling water ring formed by the nozzle, resulting in poor cooling uniformity.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rod cooling water tank back-blowing nozzle, comprising an inlet flange and a back-blowing mechanism; a nozzle mounting seat is fixedly installed on the left side of the inlet flange, and an annular contact groove is provided on the surface of the nozzle mounting seat; the back-blowing mechanism comprises a pointed nozzle and a bushing, the pointed nozzle is slidably installed inside the nozzle mounting seat, a circular sealing ring is slidably sleeved on the surface of the pointed nozzle, an annular groove is provided on the surface of the pointed nozzle, and the bushing is slidably clamped inside the annular groove.

[0006] Preferably, an outlet flange is fixedly mounted on the left side of the nozzle mounting seat, and a conical nozzle pipe is fixedly mounted on the surface of the outlet flange.

[0007] Preferably, a circular sealing ring is installed inside the annular contact groove.

[0008] Preferably, the surface of the circular sealing ring contacts the surface of the inlet flange.

[0009] Preferably, an annular inclined groove is provided on the left side of the pointed nozzle.

[0010] Preferably, the right side of the bushing contacts the surface of the inlet flange.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The back-blowing nozzle of the bar cooling water tank sprays outward through a tapered nozzle pipe. Since the opening of the tapered nozzle pipe is small on the left and large on the right, the water blocking effect of the back-blowing nozzle is more stable; it does not affect the cooling effect of the positive nozzle, and at the same time has a good effect in preventing water from being carried. The cooling water and water vapor are controlled to be discharged in the box, which will not affect the normal working environment of the workshop; the flow rate and water pressure of the cooling water can be adjusted to meet the production needs of steel of different specifications and varieties. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0014] Figure 1 This is a schematic diagram of the overall structure of a bar cooling water tank back-blowing nozzle of the utility model;

[0015] Figure 2 It is a schematic diagram of the surface structure of the conical nozzle pipe of the utility model;

[0016] Figure 3 This is a schematic diagram of the internal structure of the nozzle mounting seat of the utility model;

[0017] Figure 4 For this utility model Figure 3 Schematic diagram of the enlarged structure of A.

[0018] Figure numerals: 1. inlet flange; 2. nozzle mounting seat; 3. outlet flange; 4. conical nozzle pipe; 5. annular contact groove; 6. circular sealing ring; 7. pointed nozzle; 8. slot; 9. bushing; 10. annular bevel groove. DETAILED DESCRIPTION

[0019] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0020] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] See also Figure 1-4 The utility model provides a technical solution: a bar cooling water tank backblowing nozzle, comprising an inlet flange 1 and a backblowing mechanism, a nozzle mounting seat 2 is fixedly installed on the left side of the inlet flange 1, an outlet flange 3 is fixedly installed on the left side of the nozzle mounting seat 2, a conical nozzle pipe 4 is fixedly installed on the surface of the outlet flange 3, an annular contact groove 5 is opened on the surface of the nozzle mounting seat 2, a circular sealing ring 6 is installed inside the annular contact groove 5, and the surface of the circular sealing ring 6 contacts the surface of the inlet flange 1.

[0024] After the staff slides the pointed nozzle 7 inside the nozzle mounting seat 2, the circular sealing ring 6 is slidably sleeved on the surface of the pointed nozzle 7. Then, the staff fixes the inlet flange 1 on the right side of the nozzle mounting seat 2 with bolts. After the inlet flange 1 slides to the left and squeezes on the right side of the nozzle mounting seat 2, it squeezes the circular sealing ring 6 and squeezes the circular sealing ring 6 on the inner wall of the annular contact groove 5. Then, the connecting position between the nozzle mounting seat 2 and the inlet flange 1 is sealed by the circular sealing ring 6 to ensure the sealing performance of the backblowing nozzle.

[0025] The back-blowing mechanism comprises a pointed nozzle 7 and a bushing 9. The pointed nozzle 7 is slidably mounted inside the nozzle mounting seat 2. An annular bevel groove 10 is provided on the left side of the pointed nozzle 7. The circular sealing ring 6 is slidably sleeved on the surface of the pointed nozzle 7. An annular groove 8 is provided on the surface of the pointed nozzle 7. The bushing 9 is slidably clamped inside the annular groove 8. The right side of the bushing 9 contacts the surface of the inlet flange 1.

[0026] After the staff slides the bushing 9 into the annular groove 8, the bushing 9 can be fixedly installed through the inlet flange 1, and then the bushing 9 is fixedly installed inside the pointed nozzle 7. When the back-blowing nozzle is in use, cooling water is discharged into the inside of the pointed nozzle 7 through the inlet flange, and then the cooling water gradually moves to the left end inside the pointed nozzle 7 and sprays out from the position of the annular inclined groove 10, and sprays out to the outside through the conical nozzle pipe 4. Since the opening of the conical nozzle pipe 4 is small on the left and large on the right, the water-blocking effect of the back-blowing nozzle is more stable; it does not affect the cooling effect of the positive nozzle, and at the same time has a good effect in preventing water from being brought in. The cooling water and water vapor are controlled to be discharged in the box, and will not affect the normal working environment of the workshop; the flow rate and water pressure of the cooling water can be adjusted to meet the production needs of steel of different specifications and types.

[0027] Working principle: The bar cooling water tank back-blowing nozzle, the staff slides the pointed nozzle 7 into the inside of the nozzle mounting seat 2, and then slides the circular sealing ring 6 onto the surface of the pointed nozzle 7. Then, the staff bolts the inlet flange 1 to the right side of the nozzle mounting seat 2. The inlet flange 1 slides to the left and squeezes the right side of the nozzle mounting seat 2 and squeezes the circular sealing ring 6. The circular sealing ring 6 is used to seal the connection between the nozzle mounting seat 2 and the inlet flange 1 to ensure the sealing of the back-blowing nozzle. The staff slides the bushing 9 into the ring After the inside of the shaped slot 8, the bushing 9 can be fixedly installed through the inlet flange 1, and then the bushing 9 is fixedly installed inside the pointed nozzle 7. When the back-blowing nozzle is in use, cooling water is discharged into the inside of the pointed nozzle 7 through the inlet flange, and then the cooling water gradually moves to the left end inside the pointed nozzle 7 and is sprayed out from the position of the annular inclined groove 10, and is sprayed out to the outside through the conical nozzle pipe 4. Since the opening of the conical nozzle pipe 4 is small on the left and large on the right, the water-blocking effect of the back-blowing nozzle is more stable; it does not affect the cooling effect of the positive nozzle, and at the same time has a good effect in preventing water from being brought in.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A bar cooling water tank backflush nozzle, characterized in that: include: Inlet flange (1) and backflush mechanism; A nozzle mounting seat (2) is fixedly mounted on the left side of the inlet flange (1), and an annular contact groove (5) is formed on the surface of the nozzle mounting seat (2); The back-blowing mechanism comprises a pointed nozzle (7) and a bushing (9), wherein the pointed nozzle (7) is slidably mounted inside a nozzle mounting seat (2), a circular sealing ring (6) is slidably sleeved on the surface of the pointed nozzle (7), an annular groove (8) is provided on the surface of the pointed nozzle (7), and the bushing (9) is slidably clamped inside the annular groove (8).

2. The bar cooling water tank backflush nozzle according to claim 1, characterized in that: An outlet flange (3) is fixedly mounted on the left side of the nozzle mounting seat (2), and a conical nozzle pipe (4) is fixedly mounted on the surface of the outlet flange (3).

3. The bar cooling water tank backflush nozzle according to claim 1, characterized in that: A circular sealing ring (6) is installed inside the annular contact groove (5).

4. The bar cooling water tank backflush nozzle according to claim 3, characterized in that: The surface of the circular sealing ring (6) contacts the surface of the inlet flange (1).

5. The bar cooling water tank backflush nozzle according to claim 1, characterized in that: An annular inclined groove (10) is provided on the left side of the pointed nozzle (7).

6. The bar cooling water tank backflush nozzle according to claim 5, characterized in that: The right side of the bushing (9) contacts the surface of the inlet flange (1).

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