Steel pipe inner surface dust cleaning device and steel pipe transition device

Abstract

The utility model discloses a steel pipe inner surface dust cleaning device and a steel pipe transition device, and relates to the technical field of steel pipe inner surface dust cleaning, the steel pipe inner surface dust cleaning device comprises a sleeve, a movable blowing nozzle and a plurality of elastic pieces, the first end of the sleeve is used for being detachably connected and communicated with an air compression device; the movable blowing nozzle is used for being arranged on the inner side of the second end of the sleeve in a sealed and sleeved mode, the movable blowing nozzle can slide in the direction away from the first end of the sleeve under the action of compressed air blown by the air compression device, and the end, away from the first end of the sleeve, of the movable blowing nozzle can stretch into the steel pipe. One end of the elastic piece is connected with the sleeve, the other end of the elastic piece is connected with the movable blowing nozzle, after the air compression device stops blowing compressed air, the elastic piece is used for enabling the movable blowing nozzle to be separated from the steel pipe and reset, the structure is simple, use is convenient, and the quality of the inner surface of the steel pipe is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust cleaning inside steel pipes, in particular to a dust cleaning device on the inner surface of a steel pipe and a steel pipe transition device. Background Art

[0002] At present, the steel pipe soot blowing equipment in the pre-finishing area of ​​the production line of Baosteel Group Corporation's Steel Pipe Company is not effective enough in cleaning the dust on the inner wall of the steel pipe, which affects the quality inspection of seamless steel pipes in subsequent processes. At the same time, it causes the products to be unable to meet customers' demand for steel pipe quality, especially the quality demand for the inner surface of steel pipes, affecting the overall image of the steel pipe, and further affecting the sales of the steel pipe company's seamless steel pipes. Utility Model Content

[0003] The utility model aims to provide a steel pipe inner surface dust cleaning device and a steel pipe transition device to solve the problems existing in the above-mentioned prior art, with simple structure, convenient use and effective improvement of the inner surface quality of the steel pipe.

[0004] To achieve the above purpose, the utility model provides the following solutions:

[0005] The utility model provides a dust cleaning device for the inner surface of a steel pipe, comprising: a sleeve, a movable blowing nozzle and a plurality of elastic members, wherein the first end of the sleeve is used for being detachably connected and communicated with an air compression device; the movable blowing nozzle is used for sealingly sleeved on the inner side of the second end of the sleeve, and under the action of compressed air sprayed by the air compression device, the movable blowing nozzle can slide in a direction away from the first end of the sleeve, and can make an end of the movable blowing nozzle away from the first end of the sleeve extend into the steel pipe; one end of the elastic member is connected to the sleeve, and the other end is connected to the movable blowing nozzle, and after the air compression device stops spraying compressed air, the elastic member is used to make the movable blowing nozzle escape from the steel pipe and reset.

[0006] Preferably, it also includes multiple first support rods, multiple first connecting members, multiple second support rods and multiple second connecting members, each of the first support rods is arranged in the circumference of the sleeve, each of the second support rods is arranged in the circumference of the movable mouthpiece, and one first support rod is arranged corresponding to one second support rod, one end of the elastic member is connected to the first support rod through the first connecting member, and the other end is connected to the second support rod through the second connecting member.

[0007] Preferably, the sleeves of each of the first support rods are evenly arranged in the circumference.

[0008] Preferably, the movable mouthpiece includes a first section and a second section, the first section and the second section are integrally connected, the first section is used for sealing and is arranged on the inner side of the second end of the sleeve, the second section is used for extending into the steel pipe, the diameter of the second section is smaller than the diameter of the steel pipe, the diameter of the first section is larger than the diameter of the steel pipe, and each of the second support rods is connected to the first section.

[0009] Preferably, a connecting flange is provided at the first end of the sleeve, and a limiting flange is provided at the second end of the sleeve, wherein the connecting flange is used to be connected to the air compression device, and the outer sleeve of the first section is fixedly connected to a limiting ring, and the limiting ring is provided between each of the first support rods and the limiting flange to limit the position of the first section extending into the sleeve.

[0010] Preferably, it further comprises a guide body, wherein the guide body is arranged in the sleeve to guide the sliding of the movable mouthpiece.

[0011] Preferably, a sealing body is further included, and the sealing body is arranged in the sleeve to achieve a sealed connection between the movable blowing nozzle and the sleeve.

[0012] Preferably, it further comprises a telescopic leg, the bottom of the telescopic leg is used to be fixedly connected to the ground, the top of the telescopic leg is used to be fixedly connected to the sleeve, and the extension and retraction of the telescopic leg can adjust the height of the sleeve.

[0013] The utility model also provides a steel pipe transition device, comprising: a transition stand, an air compression device and the steel pipe inner surface dust cleaning device as described above; the transition stand is used to transport the steel pipe, and a material stopper is provided at one end of the transition stand, and the material stopper can stop the steel pipe at the material stopper for dust removal.

[0014] Compared with the prior art, the utility model has achieved the following technical effects:

[0015] The utility model provides a steel pipe inner surface dust cleaning device and a steel pipe transition device. The air compression device is turned on to spray compressed air into a sleeve, and then reaches a movable blowing nozzle, driving the movable blowing nozzle to slide and enter the steel pipe. The air compression device sprays compressed air until the dust on the inner surface of the steel pipe is cleaned. After the cleaning is completed, the air compression device is turned off, and the movable blowing nozzle retreats and resets under the pulling force of an elastic part. The utility model has a simple structure and is easy to use. The inner surface quality of the steel pipe is effectively improved. The on-site noise is reduced by extending into the steel pipe for spraying, and the consumption of compressed air is saved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of the dust cleaning device on the inner surface of a steel pipe provided by the utility model;

[0018] Figure 2 A schematic diagram of the structure of the steel pipe transition device provided by the utility model;

[0019] In the figure: 100, dust cleaning device on inner surface of steel pipe; 1, sleeve; 2, movable blowing nozzle; 3, elastic member; 4, first support rod; 5, first connecting member; 6, second support rod; 7, second connecting member; 8, connecting flange; 9, limiting flange; 10, guide body; 11, sealing body; 12, telescopic legs; 13, transition stand; 14, material stopper; 15, steel pipe; 16, limiting ring. DETAILED DESCRIPTION

[0020] 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.

[0021] The utility model aims to provide a steel pipe inner surface dust cleaning device and a steel pipe transition device to solve the problems existing in the above-mentioned prior art, with simple structure, convenient use and effective improvement of the inner surface quality of the steel pipe.

[0022] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0023] Embodiment 1

[0024] This embodiment provides a steel pipe inner surface dust cleaning device 100, such as Figure 1As shown, it comprises: a sleeve 1, a movable blowing nozzle 2 and a plurality of elastic members 3. The first end of the sleeve 1 is used to be detachably connected and communicated with the air compression device; the movable blowing nozzle 2 is used to be sealed and sleeved on the inner side of the second end of the sleeve. Under the action of the compressed air sprayed by the air compression device, the movable blowing nozzle 2 can slide in the direction away from the first end of the sleeve 1, and can make the end of the movable blowing nozzle away from the first end of the sleeve 1 extend into the steel pipe 15; one end of the elastic member 3 is connected to the sleeve 1, and the other end is connected to the movable blowing nozzle 2. After the air compression device stops spraying compressed air, the elastic member 3 is used to make the movable mouthpiece come out of the steel pipe 15 and reset, open the air compression device to spray compressed air into the sleeve 1, and then reach the movable mouthpiece 2, drive the movable mouthpiece 2 to slide and enter the steel pipe 15, the air compression device sprays compressed air until the dust on the inner surface of the steel pipe 15 is cleaned, and the air compression device is closed after the cleaning is completed. The movable mouthpiece 2 retreats and resets under the pulling force of the elastic member 3. The structure is simple and easy to use, and the inner surface quality of the steel pipe 15 is effectively improved. By extending into the steel pipe 15 for spraying, the on-site noise is reduced, and the consumption of compressed air is saved.

[0025] In a preferred scheme of the present embodiment, the steel pipe inner surface dust cleaning device 100 also includes multiple first support rods 4, multiple first connecting members 5, multiple second support rods 6 and multiple second connecting members 7. Each first support rod 4 is arranged in the circumference of the sleeve 1, and each second support rod 6 is arranged in the circumference of the movable blowing nozzle 2. One first support rod 4 is arranged corresponding to one second support rod 6. One end of the elastic member 3 is connected to the first support rod 4 through the first connecting member 5, and the other end is connected to the second support rod 6 through the second connecting member 7. The structure is simple and can ensure that the elongation direction of the elastomer is consistent with the sliding direction of the movable blowing nozzle 2.

[0026] In a preferred solution of the present embodiment, the first support rods 4 are evenly arranged around the sleeve 1 and are evenly stressed, thereby ensuring the stability of the movable blowing nozzle 2 during the sliding process.

[0027] In a preferred scheme of the present embodiment, the movable mouthpiece 2 includes a first section and a second section, the first section and the second section are integrally connected, the first section is used for sealing and is arranged on the inner side of the second end of the sleeve, and the second section is used for extending into the steel pipe 15, the diameter of the second section is smaller than the diameter of the steel pipe 15, and the diameter of the first section is larger than the diameter of the steel pipe 15, each second support rod 6 is connected to the first section, and has a simple structure. After the second section extends into the steel pipe 15, the first section can press the steel pipe 15 tightly, thereby limiting the movable mouthpiece 2 from continuing to slide, the diameter of the first section (compressed air inlet) of the movable mouthpiece 2 is 70 mm, and the diameter of the second section (compressed air outlet) is 20 mm.

[0028] In a preferred solution of this embodiment, a connecting flange 8 is provided at the first end of the sleeve 1, and a limiting flange 9 is provided at the second end of the sleeve 1. The connecting flange 8 is used to connect with the air compression device. The outer sleeve of the first section is fixedly connected to the limiting ring 16, and the limiting ring 16 is provided between each first support rod 4 and the limiting flange 9 to limit the position of the first section extending into the sleeve 1. It is convenient to use. The limiting flange 9 is installed at the right end of the sleeve 1 to assemble the complete set of devices. The limiting ring 16 is installed on the movable blowing nozzle 2 to prevent the second support rod 6 from hitting the sleeve 1.

[0029] In a preferred solution of this embodiment, the steel pipe inner surface dust cleaning device 100 also includes a guide body 10, which is arranged in the sleeve 1 to guide the sliding of the movable blowing nozzle 2. The structure is simple and the moving direction of the movable blowing nozzle 2 is ensured.

[0030] In a preferred solution of the present embodiment, the steel pipe inner surface dust cleaning device 100 also includes a sealing body 11, which is arranged in the sleeve 1 to enable a sealed connection between the movable blowing nozzle 2 and the sleeve 1, thereby achieving sealing between the sleeve 1 and the movable blowing nozzle 2 and ensuring the efficient use of compressed air.

[0031] In a preferred solution of the present embodiment, the steel pipe inner surface dust cleaning device 100 also includes a telescopic leg 12, the bottom of the telescopic leg 12 is used to be fixedly connected to the ground, and the top of the telescopic leg 12 is used to be fixedly connected to the sleeve 1. The telescopic leg 12 can adjust the height of the sleeve 1 by retracting it, so as to realize that the center of the movable nozzle 2 of the newly designed device for cleaning the dust on the inner surface of the steel pipe 15 is always in a straight line with the center of the steel pipe 15.

[0032] Embodiment 2

[0033] This embodiment also provides a steel pipe transition device, such as Figure 2 As shown, it includes: a transition stand 13, an air compression device and a steel pipe inner surface dust cleaning device 100 as in Example 2; the transition stand 13 is used to transport the steel pipe 15, and a material stopper 14 is provided at one end of the transition stand 13, and the material stopper 14 can stop the steel pipe 15 at the material stopper 14 for dust removal.

[0034] Embodiment 3

[0035] The utility model also provides a method for using the steel pipe transition device of embodiment 2, comprising the following steps:

[0036] After the steel pipe 15 rolls on the transition stand 13 to the material stopper 14, the air compressor is turned on to blow compressed air into the sleeve 1, and then reaches the movable blowing nozzle 2, driving the movable blowing nozzle 2 to slide and make the second section enter the steel pipe 15 at the material stopper 14. The air compressor blows compressed air until the dust on the inner surface of the steel pipe 15 is cleaned. After the cleaning is completed, the air compressor is turned off, and the movable blowing nozzle 2 retreats and resets under the pulling force of the elastic member 3. After the dust is cleaned, the steel pipe 15 runs to the next link. In this way, the dust on the inner wall of each steel pipe 15 is completely cleaned.

[0037] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A dust cleaning device for the inner surface of a steel pipe, characterized in that: include: A sleeve, wherein a first end of the sleeve is used to be detachably connected to and communicate with the air compression device; A movable blowing nozzle, the movable blowing nozzle is used for sealingly sleeved on the inner side of the second end of the sleeve, and under the action of the compressed air sprayed by the air compression device, the movable blowing nozzle can slide in the direction away from the first end of the sleeve, and can make the end of the movable blowing nozzle away from the first end of the sleeve extend into the steel pipe; as well as A plurality of elastic members, one end of each of the elastic members is connected to the sleeve, and the other end is connected to the movable mouthpiece. After the air compression device stops blowing compressed air, the elastic members are used to make the movable mouthpiece escape from the steel pipe and reset.

2. The steel pipe inner surface dust cleaning device according to claim 1, characterized in that: It also includes multiple first support rods, multiple first connecting members, multiple second support rods and multiple second connecting members, each of the first support rods is arranged in the circumference of the sleeve, each of the second support rods is arranged in the circumference of the movable mouthpiece, and one first support rod is arranged corresponding to one second support rod, one end of the elastic member is connected to the first support rod through the first connecting member, and the other end is connected to the second support rod through the second connecting member.

3. The steel pipe inner surface dust cleaning device according to claim 2, characterized in that: The sleeves of each of the first support rods are evenly arranged in the circumference.

4. The steel pipe inner surface dust cleaning device according to claim 3, characterized in that: The movable mouthpiece includes a first section and a second section, the first section and the second section are integrally connected, the first section is used for sealing and is arranged on the inner side of the second end of the sleeve, the second section is used for extending into the steel pipe, the diameter of the second section is smaller than the diameter of the steel pipe, the diameter of the first section is larger than the diameter of the steel pipe, and each of the second support rods is connected to the first section.

5. The steel pipe inner surface dust cleaning device according to claim 4, characterized in that: A connecting flange is provided at the first end of the sleeve, and a limiting flange is provided at the second end of the sleeve. The connecting flange is used to be connected to the air compression device. The outer sleeve of the first section is fixedly connected to a limiting ring. The limiting ring is provided between each of the first support rods and the limiting flange to limit the position of the first section extending into the sleeve.

6. The steel pipe inner surface dust cleaning device according to claim 1, characterized in that: It also includes a guide body, which is arranged in the sleeve to guide the sliding of the movable mouthpiece.

7. The steel pipe inner surface dust cleaning device according to claim 1, characterized in that: It also includes a sealing body, which is arranged in the sleeve to ensure a sealed connection between the movable mouthpiece and the sleeve.

8. The steel pipe inner surface dust cleaning device according to claim 1, characterized in that: It also includes a telescopic leg, the bottom of the telescopic leg is used to be fixedly connected to the ground, the top of the telescopic leg is used to be fixedly connected to the sleeve, and the extension and retraction of the telescopic leg can adjust the height of the sleeve.

9. A steel pipe transition device, characterized in that: include: A transition stand, the transition stand is used to transfer the steel pipe, and a material stopper is provided at one end of the transition stand, and the material stopper can stop the steel pipe at the material stopper for dust removal; Air compression device; A steel pipe inner surface dust cleaning device as described in any one of claims 1 to 8.

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