Stainless steel pipe continuous passivation device

Abstract

The utility model relates to a continuous passivation device for stainless steel pipes, comprising: a box body, one side of which is provided with an opening; a spraying assembly, which is arranged on the top of the box body and is used for spraying acid liquid; a movable seat, which is movably arranged on one side of the box body, and a plurality of groups of placement seats for placing steel pipes are arranged on the movable seat, and the placement seats enter into the box body through the opening; the utility model uses an external force to make a rotating part drive the steel pipe to rotate, controls the steel pipe to rotate, and uses the spraying assembly to extract the acid liquid in the box body and spray it onto the steel pipe on the placement seat, so that the surface of the steel pipe can be pickled, and the pickling of the steel pipe can be made more thorough and comprehensive, and continuous pickling passivation can be achieved, and the stainless steel pipes are not in contact with each other, and there will be no situation of uneven pickling caused by mutual squeezing, and the stainless steel pipes are constantly rotating, which can also effectively avoid the situation of incomplete pickling caused by the contact part between the stainless steel pipe and the placement seat.

Description

Technical Field

[0001] The utility model relates to the technical field of passivation, in particular to a continuous passivation device for stainless steel pipes. Background Art

[0002] During the processing of stainless steel pipes, the steel pipes with oxidized outer surfaces need to be pickled to clean the oxides on the surface of the steel pipes and extend their service life.

[0003] When multiple stainless steel pipes are bundled together and placed in a tank for pickling, the surfaces of the contacting steel pipes may not be effectively wetted by the acid solution, affecting the pickling effect. Utility Model Content

[0004] The utility model aims at the deficiencies of the prior art and provides a continuous passivation device for stainless steel pipes. The specific technical scheme is as follows:

[0005] Stainless steel pipe continuous passivation device, including:

[0006] A box body, one side of which is provided with an opening;

[0007] A spraying assembly, arranged on the top of the box body, for spraying acid liquid;

[0008] A movable seat, movably arranged on one side of the box body, wherein a plurality of groups of placement seats for placing steel pipes are arranged on the movable seat, and the placement seats are placed into the box body through the opening;

[0009] The rotating assembly includes a mounting frame and a plurality of rotating parts rotatably plugged into the mounting frame. The rotating parts are driven by external force to rotate the steel pipe, and cooperate with the spraying assembly to control the steel pipe to be continuously pickled and passivated in all directions.

[0010] As an improvement of the above technical solution, the spray assembly includes a movable module fixedly arranged on the top of the inner wall of the box body, the movable module is provided with a movable slider, the slider is provided with a fixed pipe, a plurality of groups of nozzles are connected to the lower part of the fixed pipe, a circulation pipe is provided to the bottom of the side wall of the box body, and a water pump is provided on the circulation pipe.

[0011] As an improvement of the above technical solution, a placement groove is provided on the top of the placement seat, and the placement groove corresponds to the position of the rotating member one by one.

[0012] As an improvement of the above technical solution, a driven wheel is fixedly sleeved on the surface of the rotating part and located in the installation frame, and a rotating shaft corresponding to the number and position of the driven wheels is provided on the installation frame, and a driving wheel engaged with the driven wheels is fixedly sleeved below the rotating shaft, and a transmission belt is provided between two groups of adjacent rotating shafts, and the rotating shaft at the head or the tail is transmission-connected to the output shaft of the motor.

[0013] As an improvement of the above technical solution, a fixed disk 1 is provided at one end of the rotating member located outside the installation frame, and a fixed disk 2 corresponding in number and position to the fixed disk 1 is rotatably connected to the inner wall of the box body and located on the other side of the rotating member.

[0014] As an improvement of the above technical solution, the rotating assembly further includes an electric push rod disposed on the inner wall of the box body, and a telescopic end of the electric push rod is fixedly connected to the mounting frame.

[0015] Beneficial effects of the utility model:

[0016] The rotating part drives the steel pipe to rotate through external force, controls the steel pipe to rotate, and uses the spray component to draw out the acid in the box and spray it to the steel pipe on the placement seat, so that the surface of the steel pipe can be pickled, which can make the pickling of the steel pipe more thorough and comprehensive, and realize continuous pickling passivation. The stainless steel pipes do not contact each other, and there will be no mutual squeezing to cause uneven pickling. In addition, the stainless steel pipe is constantly rotating, which can also effectively avoid incomplete pickling due to the contact between the stainless steel pipe and the placement seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is the main view of the overall structure of the utility model;

[0018] Figure 2 It is a top view of the overall structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure inside the installation frame of the utility model;

[0020] Figure 4 This is a schematic diagram of the connection structure of multiple sets of rotating shafts of the utility model.

[0021] Figure numerals: 10, box body; 11, opening; 20, moving module; 21, fixed tube; 22, nozzle; 30, moving seat; 31, placement seat; 40, electric push rod; 41, mounting frame; 42, rotating part; 43, driving wheel; 44, driven wheel; 45, rotating shaft; 46, motor. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] The device for continuous passivation of stainless steel pipes comprises: a box body 10, one side of which is provided with an opening 11; a spraying assembly, which is arranged on the top of the box body 10 and is used for spraying acid solution; a movable seat 30, which is movably arranged on one side of the box body 10, and the movable seat 30 is provided with a plurality of groups of placement seats 31 for placing steel pipes, and the placement seats 31 enter the box body 10 through the opening 11; a rotating assembly, which comprises a mounting frame 41 and a plurality of groups of rotating parts 42 rotatably plugged into the mounting frame 41, and the rotating parts 42 are driven by external force to drive the steel pipe to rotate, and cooperate with the spraying assembly to control the steel pipe to be continuously pickled and passivated in all directions.

[0024] Pour acid into the box 10 so that the liquid level of the acid is below the opening 11. When the steel pipe needs to be passivated, place the steel pipe on the placement seat 31, move the placement seat 31 into the box 10 using the opening 11, drive the mounting frame 41 to move, so that the rotating member 42 can push the end of the steel pipe to move until the other end of the steel pipe contacts the inner wall of the box 10, and the steel pipe is limited and fixed. The rotating member 42 drives the steel pipe to rotate through external force, so that the steel pipe rotates, and the acid in the box 10 is extracted and sprayed onto the steel pipe on the placement seat 31 by the spray assembly, so that the surface of the steel pipe can be pickled, which can make the pickling of the steel pipe more thorough and comprehensive. The stainless steel pipes do not contact each other, and there will be no mutual squeezing and uneven pickling. In addition, the stainless steel pipe is constantly rotating, which can also effectively avoid incomplete pickling due to the contact between the stainless steel pipe and the placement seat 31.

[0025] In one embodiment, the spray assembly includes a movable module 20 fixedly arranged on the top of the inner wall of the box body 10, and a movable slider is arranged on the movable module 20, and a fixed pipe 21 is arranged on the slider, and multiple groups of nozzles 22 are connected to the lower part of the fixed pipe 21, and a circulation pipe is arranged on the fixed pipe 21 and connected to the bottom of the side wall of the box body 10, and a water pump is arranged on the circulation pipe. Specifically, the water pump draws the acid liquid in the box body 10 into the circulation pipe, and transports the acid liquid to the fixed pipe 21 through the circulation pipe, and then transports the acid liquid to the multiple groups of nozzles 22 by the fixed pipe 21, and sprays the acid liquid onto the surface of the steel pipe by the nozzle 22. At the same time, the movable module 20 drives the fixed pipe 21 to move along the length direction of the box body through the slider, so that the nozzle 22 on the fixed pipe 21 can move along the length direction of the box body to spray the acid liquid on the surface of the steel pipe in all directions.

[0026] In order to make multiple groups of rotating parts correspond one-to-one with the steel pipe, a placement groove is opened on the top of the placement seat 31, and the placement groove corresponds one-to-one with the position of the rotating part 42. The steel pipe can be limited by the placement groove to avoid moving back and forth on the placement seat 31.

[0027] In one embodiment, the surface of the rotating member 42 is fixedly sleeved with a driven wheel 44 located in the installation frame 41, and a rotating shaft 45 corresponding to the number and position of the driven wheels 44 is rotatably arranged on the installation frame 41, and a driving wheel 43 meshing with the driven wheel 44 is fixedly sleeved below the rotating shaft 45, and a transmission belt is arranged between two sets of adjacent rotating shafts 45, and the rotating shaft 45 at the head or the tail is connected to the output shaft of the motor 46. Specifically, the external force drives the installation frame 41 to move in the direction of the steel pipe, so that the rotating member 42 is aligned with the steel pipe. The ends collide to make the steel pipe move, and the other end of the steel pipe is controlled to be connected to the inner wall of the box body 10. The output shaft of the motor 46 is connected to the rotating shaft 45 of the head or tail through a transmission belt, or the output shaft of the motor 46 is fixedly connected to the rotating shaft 45 of the head or tail. The rotating shaft 45 drives several other groups of rotating shafts 45 to rotate through the transmission belt. The rotating shaft 45 drives the driving wheel 43 to rotate, the driving wheel 43 drives the driven wheel 44 to rotate, the driven wheel 44 drives the rotating member 42 to rotate, and the rotating member 42 drives the steel pipe to rotate, so that multiple groups of steel pipes can be synchronously rotated for pickling.

[0028] In one embodiment, a fixed disk 1 is provided at one end of the rotating member 42 located outside the mounting frame 41, and a fixed disk 2 corresponding in number and position to the fixed disk 1 is rotatably connected to the inner wall of the box body 10 and located on the other side of the rotating member. Specifically, the two ends of the steel pipe are respectively in contact with the fixed disk 1 and the fixed disk 2, thereby facilitating the rotation of the steel pipe.

[0029] In one embodiment, the rotating assembly also includes an electric push rod 40 arranged on the inner wall of the box body 10, and the telescopic end of the electric push rod 40 is fixedly connected to the mounting frame 41. The electric push rod 40 can drive the mounting frame 41 to move in the box body 10 to adapt to steel pipes of different lengths. At the same time, the steel pipe can be limited between the fixed disk 1 and the fixed disk 2 to facilitate the rotation of the steel pipe.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. Stainless steel pipe continuous passivation device, characterized in that: include: A box body (10), wherein one side of the box body (10) is provided with an opening (11); A spraying assembly, arranged on the top of the box (10) and used for spraying acid liquid; A movable seat (30) is movably arranged on one side of the box body (10), and a plurality of groups of placement seats (31) for placing steel pipes are arranged on the movable seat (30), and the placement seats (31) enter the box body (10) through the opening (11); The rotating assembly comprises a mounting frame (41) and a plurality of rotating parts (42) rotatably plugged into the mounting frame (41); an external force drives the rotating parts (42) to rotate the steel pipe, and cooperates with the spraying assembly to control the steel pipe to be continuously pickled and passivated in all directions.

2. The stainless steel pipe continuous passivation device according to claim 1, characterized in that: The spray assembly comprises a movable module (20) fixedly arranged on the top of the inner wall of the box body (10), the movable module (20) is provided with a movable slider, the slider is provided with a fixed pipe (21), a plurality of groups of spray heads (22) are connected and arranged below the fixed pipe (21), a circulation pipe is connected and arranged at the bottom of the side wall of the box body (10), and a water pump is arranged on the circulation pipe.

3. The stainless steel pipe continuous passivation device according to claim 1, characterized in that: A placement groove is provided on the top of the placement seat (31), and the placement groove corresponds to the position of the rotating member (42) one by one.

4. The stainless steel pipe continuous passivation device according to claim 1, characterized in that: A driven wheel (44) is fixedly sleeved on the surface of the rotating member (42) and is located in the installation frame (41). A rotating shaft (45) corresponding in number and position to the driven wheels (44) is provided on the installation frame (41). A driving wheel (43) meshing with the driven wheel (44) is fixedly sleeved below the rotating shaft (45). A transmission belt is provided between two groups of adjacent rotating shafts (45). The rotating shaft (45) at the head or the tail is drivingly connected to the output shaft of the motor (46).

5. The stainless steel pipe continuous passivation device according to claim 4, characterized in that: A fixed disk 1 is provided at one end of the rotating member (42) located outside the installation frame (41), and a fixed disk 2 corresponding in number and position to the fixed disk 1 is rotatably connected to the inner wall of the box body (10) and located on the other side of the rotating member.

6. The stainless steel pipe continuous passivation device according to claim 5, characterized in that: The rotating assembly further comprises an electric push rod (40) arranged on the inner wall of the box body (10), and the telescopic end of the electric push rod (40) is fixedly connected to the installation frame (41).

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