CN212404293U - Pipe bar pickling device - Google Patents
Pipe bar pickling device Download PDFInfo
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- CN212404293U CN212404293U CN202020947609.0U CN202020947609U CN212404293U CN 212404293 U CN212404293 U CN 212404293U CN 202020947609 U CN202020947609 U CN 202020947609U CN 212404293 U CN212404293 U CN 212404293U
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- pipe
- bar
- pickling
- tube
- pipe rod
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Abstract
The utility model discloses a pipe rod pickling plant, include: the pickling tank is used for containing pickling solution; the pipe rod material frame comprises a protruding part and a strip-shaped structure, wherein two ends of the strip-shaped structure are bent towards the direction of the notch; the pipe bar material rack is arranged at the bottom of the pickling tank and used for bearing the pipe bars. The pipe and bar pickling device further comprises a moving assembly used for hoisting the pipe and bar, and the pipe and bar are hoisted through a hanging strip of the moving assembly to be pickled. Through the device, make pipe rod surface evenly contact pickle, solve at present in the pipe rod pickling process because the contact between pipe rod and the pipe rod and between pipe rod and work or material rest, suspender easily causes the problem of defects such as surface over corrosion, foreign matter bonding and pit, improved the quality of finished product pipe rod, especially improved the pickling defect of the rare metal pipe rod that requires higher surface quality, reached the pipe rod and not had the defect pickling.
Description
Technical Field
The utility model relates to a pipe rod treatment facility technical field, in particular to pipe rod pickling plant.
Background
Pickling is a method for treating the surface of metal, and generally, a workpiece is immersed in an acid solution to remove an oxide film on the surface of the metal through a chemical reaction. The pickling is widely applied and is a pretreatment or intermediate treatment of industrial electroplating, enamel, rolling and other processes. In industrial production, sulfuric acid, hydrochloric acid, phosphoric acid, nitric acid, hydrofluoric acid, and the like are generally used for pickling.
The pickling process mainly comprises a soaking pickling method and a turbulent pickling method. Pickling the tube and the bar generally adopts a soaking type pickling method. The immersion type pickling method has low process cost and simpler equipment structure, so that the immersion type pickling method is more utilized in industrial production.
However, in the process of the immersion type pickling method, the contact surfaces between the tube and the bar, and between the tube and the rack are usually not completely pickled, which easily causes uneven pickling of the tube and the bar, and the contact surfaces between the tube and the bar, and between the tube and the rack, the sling, and other devices are easily corroded, adhered by foreign matters, and pitted, so that the surface quality of the tube and the bar is not easy to control.
The existing pickling devices in the market cannot well avoid the defects generated on the surfaces of the contact parts of the tubes and the bars, particularly rare metals such as zirconium and zirconium alloy tubes and bars have high requirements on the surface quality after pickling, and the pickling defects easily cause subsequent rolling, drawing cracking and scrapping of the tubes and bars or unqualified surfaces of finished tubes and bars.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a purpose provides a pipe rod pickling plant makes pipe rod surface evenly contact the pickle, improves the quality of finished product pipe rod.
In order to solve the technical problem, an embodiment of the utility model provides a pipe rod pickling plant, include: a pickling tank 1 for containing a pickling solution; the pipe and bar material rack 3 comprises a bulge and a bar-shaped structure, wherein two ends of the bar-shaped structure are bent towards the direction of the notch of the pickling tank 1, and the bulge is arranged in the middle of the bar-shaped structure; the pipe bar material rack 3 is arranged at the bottom of the pickling tank 1 and is used for receiving pipe bars 4.
Furthermore, the number of the tube and bar material racks 3 is multiple, and the multiple tube and bar material racks 3 are distributed at intervals in the length direction of the tube and bar materials 4; the number of the convex parts is one or more, and the plurality of convex parts are arranged at intervals in the length direction of the strip-shaped structure.
Further, the pickling device for the pipe and the bar also comprises an anti-corrosion layer 32; the shape of the anti-corrosion layer 32 is matched with the shape of the surface of the tube and bar material rack 3, and is arranged on the surface of the tube and bar material rack 3.
Further, the corrosion prevention layer 32 is made of fluoroplastic resistant to acid corrosion; the corrosion protection layer 32 is adhered to the surface of the bar material shelf 3. Further, the pickling device for the pipe and bar materials also comprises: and the pipe and bar moving assembly is used for hoisting the pipe and bar 4 and placing or removing the pipe and bar 4 from the pickling tank 1.
Further, the tube and bar moving assembly comprises: the travelling crane and a pipe bar sling 2 connected with the travelling crane; the tube and bar material hanging belt 2 is used for hanging the tube and bar material 4; the travelling crane is used for controlling the movement of the pipe bar hanging strip 2, so that the pipe bar hanging strip 2 drives the pipe bar 4 to be put into or removed from the pickling tank 1.
Further, the bar sling 2 comprises: a lifting rope 21 and a plurality of plastic bone sections 22 sleeved outside the lifting rope 21.
Further, the hoist rope 21 is made of stainless steel wire; the plastic condyles 22 are made of an acid corrosion resistant fluoroplastic.
Further, the length of the plastic condyle 22 is 20mm to 200 mm.
Further, both ends of the plastic condyle 22 are subjected to rounding treatment; the edges and corners of the pipe and bar material rack 3 are subjected to fillet treatment.
The embodiment of the utility model provides an above-mentioned technical scheme has following profitable technological effect:
through the device, make pipe rod surface evenly contact pickle, solve at present in the pipe rod pickling process because the contact between pipe rod and the pipe rod and between pipe rod and work or material rest, suspender easily causes the problem of defects such as surface over corrosion, foreign matter bonding and pit, improved the quality of finished product pipe rod, especially improved the pickling defect of the rare metal pipe rod that requires higher surface quality, reached the pipe rod and not had the defect pickling.
Drawings
FIG. 1 is a schematic structural diagram of a pickling apparatus for pipes and bars according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a tube and bar harness according to an embodiment of the present invention;
FIG. 3 is a schematic view of a plastic loop of a bar and tube harness provided by an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a pipe stick material rack provided by an embodiment of the present invention;
fig. 5 is a state diagram of the pipe bar material provided by the embodiment of the present invention after being placed on the pipe bar material rack.
Reference numerals:
1. a pickling tank, 2, a pipe bar hanging strip, 21, a hanging rope, 22, a plastic bone section, 3, a pipe bar material frame, 32, an anti-corrosion layer, 4 and a pipe bar.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Referring to fig. 1, fig. 2 and fig. 3, an embodiment of the present invention provides a pipe and bar pickling apparatus, including: a pickling tank 1 for containing a pickling solution; the pipe and bar material rack 3 comprises a bulge and a bar-shaped structure, wherein two ends of the bar-shaped structure are bent towards the direction of the notch of the pickling tank 1, and the bulge is arranged in the middle of the bar-shaped structure; the pipe bar material rack 3 is arranged at the bottom of the pickling tank 1 and is used for receiving pipe bars 4.
In a specific embodiment, when the pipe bar 4 is placed in the pickling tank 1 for pickling, the pipe bar 4 to be pickled can be flatly erected on the surface of the pipe bar rack 3, so that the pickling of the pipe bar 4 is uniform.
Specifically, the hoisted grouped and stacked pipe bars 4 descend into the pickling tank 1, the lowermost layer of pipe bars in the stacked pipe bar group is firstly contacted with the protrusions of the pipe bar material frame 3, and the protrusions disperse the stacked pipe bars 4 along with the descending of the grouped and stacked pipe bars, namely, the pipe bars 4 roll to the two sides of the protrusions under the action of the protrusions until the pipe bars 4 are uniformly laid and do not roll any more.
In the prior art, because there is no pipe bar material rack in the pickling tank, or the surface of the existing pipe bar material rack is a planar structure, the piled pipe bars are placed in the pickling tank as they are, and the contact surface between each layer of pipe bars and the pipe bars, or between the pipe bars and the rack is not uniformly pickled. The material rest is provided with the protruding parts, and the piled tube and bar material groups can roll and be uniformly dispersed on the tube and bar material rest under the action of the protruding parts, so that the tube and bar materials are pickled more uniformly.
Optionally, the vertical section of pipe rod 4 is W shape, and under the effect of middle bellying, the pipe rod 4 of treating the pickling rolls in the pickle, makes 4 surfaces of pipe rod uniformly contact the pickle, avoids the problem that pipe rod 4 and 4 contact surfaces of pipe rod, pipe rod 4 and 1 contact surface of descaling bath can't be effectively pickled, realizes 4 even pickups of pipe rod, improves the quality of pipe rod 4.
The pipe and bar material rack 3 can be an integrated forming device, namely a boss and a bar-shaped structure are integrated into a whole. For example, the pipe stick material rack 3 is formed by a bar structure having a certain length, alternatively a long plate, a long rod or a long pipe.
In a specific embodiment, two ends of a strip-shaped structure with a certain length are bent towards the same direction, and the middle part of the strip-shaped structure is protruded towards the bending direction of the two ends to form a protruding part; or the two ends of the strip-shaped structure with a certain length are bent towards the same direction to form a U-shaped frame, and a bulge part is fixedly arranged at the bottom of the U-shaped frame.
In the present embodiment, the vertical cross section of the protruding portion of the bar material holder 3 is rectangular or semicircular, and preferably, the vertical cross section of the protruding portion is trapezoidal.
In the present embodiment, the size of the bar stock rack 3 is related to the diameter of the bar stock 4 to be pickled; in an alternative embodiment, the length of the top of the boss is 2-5 times the diameter of the bar 4; the length of two grooves formed between the convex part and the folding point of the strip-shaped structure is 2-5 times of the diameter of the tube bar 4; the height of the convex part is 1 to 3 times of the diameter of the tube bar 4.
In exemplary embodiments, for example, the length of the lobe tip is 2 times, or 3 times, the diameter of the bar 4; optionally, the length of the two grooves formed between the protrusions and the folding points of the bar structures is 2.5 times, or 3 times, the diameter of the bar 4; the height of the projections is 1.5 times, or 2 times, the diameter of the bar 4. In an alternative embodiment, each set of bar to be pickled consists of 6 to 12 pipe strands 4, and in another alternative embodiment, each set of bar to be pickled consists of 1 to 20 pipe strands 4.
In an optional embodiment, the number of the tube and bar material racks 3 is multiple, and the multiple tube and bar material racks 3 are distributed at intervals in the length direction of the tube and bar materials 4; the number of the convex parts is one or more, and the plurality of convex parts are arranged at intervals in the length direction of the strip-shaped structure.
A plurality of pipe bar material racks 3 are distributed along the length direction of the pipe bar 4, and in a specific embodiment, at least two pipe bar material racks 3 are arranged so as to make the pipe bar 4 overhead at more than two positions of the pipe bar 4. Optionally, the pipe and bar stacks 3 are evenly spaced.
When the number of the convex parts is multiple, the convex parts are arranged at intervals in the length direction of the bar-shaped structure, so that the acid washing of the multiple groups of tube bars 4 is realized at the same time.
In some embodiments, the apparatus for pickling a pipe bar further comprises a corrosion protection layer 32; the shape of the anti-corrosion layer 32 is matched with the shape of the surface of the tube and bar material rack 3, and is arranged on the surface of the tube and bar material rack 3.
In particular embodiments, the corrosion protection layer 32 is made of an acid corrosion resistant fluoroplastic; the corrosion protection layer 32 is adhered to the surface of the bar material shelf 3.
In the present embodiment, the pipe and bar material rack 3 is made of a metal framework, and one side of the pipe and bar material rack 3 is connected to the bottom of the pickling tank 1, optionally, the connection mode is a fixed connection or a detachable connection, or the pipe and bar material rack 3 is directly placed on the bottom of the pickling tank 1.
The anti-corrosion layer 32 is arranged in the direction of the pipe bar material rack 3 deviating from the bottom of the pickling tank 1, namely, the anti-corrosion layer 32 is arranged on one side of the notch direction of the pickling tank 1, and the pipe bar material rack 3 to be pickled is placed with the anti-corrosion layer 32 to contact the pipe bar material rack 4.
The anti-corrosion layer 32 made of fluoroplastics effectively avoids the generation of surface defects of the tube bar 4 which is in contact with the tube bar rack 3 and is caused by the corrosion of the tube bar rack 3 in acid liquor. The material of the anti-corrosion layer 32 can be polytetrafluoroethylene, and is preferably high-quality acid corrosion resistant fluoroplastic such as polyvinylidene fluoride or polyvinylidene fluoride.
In a specific embodiment, the anti-corrosion layer 32 is adhered to the surface of the bar material rack 3; the anti-corrosion layer 32 and the pipe and bar material rack 3 are both W-shaped.
In the embodiment, the pipe and bar material rack 3 is made of an acid corrosion resistant stainless steel frame, and the weight of the stainless steel frame is heavier than that of the fluoroplastic, so that the pipe and bar material rack 3 can be stably placed in the pickling tank 1.
In some embodiments, the apparatus for pickling a pipe or bar further comprises: and the pipe and bar moving assembly is used for hoisting the pipe and bar 4 and placing or removing the pipe and bar 4 from the pickling tank 1.
In some embodiments, the tube and rod moving assembly comprises: the travelling crane and a pipe bar sling 2 connected with the travelling crane; the tube and bar material hanging belt 2 is used for hanging the tube and bar material 4; the travelling crane is used for controlling the movement of the pipe bar hanging strip 2, so that the pipe bar hanging strip 2 drives the pipe bar 4 to be put into or removed from the pickling tank 1. The driving control tube bar sling 2 is lifted and moved back and forth and left and right.
The tube and bar hanging belts 2 can be a plurality of groups, each group at least comprises two tube and bar hanging belts 2, and the two tube and bar hanging belts 2 load and unload the tube and bar 4 at the same speed. When the pipe rod hanging strips 2 are multiple groups, the protruding parts of the pipe rod material frame 3 are multiple, the multiple groups of pipe rod hanging strips 2 hoist the multiple groups of pipe rods 4, and the pipe rod material frame 3 is placed into the pipe rod material frame 3, so that the pipe rods 4 are pickled simultaneously, and the pickling speed and the pickling efficiency are increased.
In a preferred embodiment, the bar sling 2 comprises: a lifting rope 21 and a plurality of plastic bone sections 22 sleeved outside the lifting rope 21. The plastic bone segments 22 are sequentially sleeved on the lifting rope 21 in a tubular shape, or the plastic bone segments 22 are sequentially movably connected end to end and sleeved on the lifting rope 21. The plastic joints 22 ensure that the pipe and bar hanging belts 2 can effectively control the tightening and loosening speed of the pipe and bar hanging belts 2 in the process of transporting the pipe and bar 4, and can control the rolling speed of the pipe and bar 4 in the process of being placed on the pipe and bar material rack 3 to a certain extent.
In a preferred embodiment, the lifting rope 21 is made of stainless steel wire; the plastic condyles 22 are made of an acid corrosion resistant fluoroplastic. The length of the plastic condyle 22 is 20mm to 200 mm. The plastic joint 22 made of fluoroplastics effectively avoids the generation of surface defects of the tube bar 4 contacting with the tube bar braces 2 caused by the corrosion of the tube bar braces 2 in acid liquor. The material of the plastic condyle 22 may be polytetrafluoroethylene, preferably high-quality acid corrosion resistant fluoroplastic such as polyvinylidene fluoride or polyvinylidene fluoride.
In particular embodiments, both ends of the plastic condyle 22 are rounded; the edges and corners of the pipe and bar material rack 3 are subjected to fillet treatment. Specifically, all devices in contact with the tube and bar 4 are subjected to rounding treatment, so that the edges and corners are prevented from damaging the surface of the tube and bar 4.
In the specific embodiment, the pipe and bar material 4 is hoisted into the pickling tank 1 through the pipe and bar material hanging strip 2, when the pipe and bar material 4 contacts the pipe and bar material rack 3, the pipe and bar material hanging strip 2 is loosened at a certain speed, so that the pipe and bar material 4 stacked together gradually rolls along the shape of the upper surface of the pipe and bar material rack 3 under the guidance of the pipe and bar material hanging strip 2 until the pipe and bar material 4 is flatly laid on the pipe and bar material rack 3. At this time, the contact surface between the tubular rod 4 and the tubular rod 4 is not fixed due to the rolling of the tubular rod 4, so that the surface of the tubular rod 4 is uniformly pickled.
In the specific implementation mode, in the process of pickling each group of pipe bars 4 in the pickling tank 1, the pipe bar braces 2 drive the pipe bars 4 to repeatedly tighten and loosen and lay flat, so that the surfaces of the pipe bars 4 uniformly and fully contact the pickling solution. Specifically, the pipe and bar materials 4 are hoisted into the pickling tank 1 through the pipe and bar material hanging strips 2 and are flatly rolled on the upper surface of the pipe and bar material rack 3, the pipe and bar material hanging strips 2 are tightened up and lifted at regular intervals, the pipe and bar materials 4 are rolled again to recover the stacking state, the pipe and bar material hanging strips 2 fall and are loosened at regular intervals, and the pipe and bar materials 4 are rolled again to be in the flat state. The tightening, the lifting and the falling of the pipe and bar hanging strip 2 are loosened repeatedly for many times, so that the pipe and bar 4 rolls, and the surface of the pipe and bar 4 is in uniform contact with the pickling solution.
Through many batches of pipe rod pickling verification, the result shows, the utility model discloses a pipe rod pickling installation is feasible, and the contact part surface that obtains after soaking the pickling does not have defects such as excessive corrosion, foreign matter bonding, pit, has solved the problem that exists among the prior art, has reached the purpose of the non-defective pickling of pipe rod.
The utility model discloses an increase plastics condyle 22 on "U" type stainless steel wire rope and constitute pipe rod suspender 2, increase "W" type pipe rod material frame 3 in descaling bath 1 bottom to use the plastics of acid-fast corrosion to make pipe rod material frame 3, guaranteed that the material that pipe rod 4 contacted in the pickling process is whole to be chemical resistance fluoroplastics, avoid contact portion to produce pickling defects such as excessive corrosion, foreign matter bonding, pit; the pipe and bar materials 4 can roll when falling down and placed on the W-shaped pipe and bar material rack 3 and when rising and leaving the pipe and bar material rack 3, the long-time contact of the same position of the pipe and bar materials is avoided, so that the generation of defects such as over-corrosion, pickling pits and the like is avoided, and the defect-free pickling is realized.
The utility model provides a present pipe rod soak pickling method can't be fine avoid above-mentioned pipe rod contact segment surface to produce the problem of defect, especially rare metal pipe rod, surface quality requires higher after to the pickling, has improved pipe rod pickling surface quality through this pipe rod pickling installation, reduces rolling fracture problem, improves the yield, reduces the rework volume that causes because of pipe rod pickling surface defect, improves production efficiency, reduction in production cost.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A tube and bar pickling device is characterized by comprising:
a pickling tank (1) for containing a pickling solution;
the pipe rod material rack (3) comprises a bulge part and a strip-shaped structure, wherein two ends of the strip-shaped structure are bent towards the direction of the notch of the pickling tank (1), and the bulge part is arranged in the middle of the strip-shaped structure;
the pipe rod material rack (3) is arranged at the bottom of the pickling tank (1) and is used for receiving pipe rods (4).
2. The pickling device for pipe and bar materials according to claim 1,
the number of the tube rod material frames (3) is multiple, and the tube rod material frames (3) are distributed at intervals in the length direction of the tube rod material (4);
the number of the protruding parts is one or more, and the protruding parts are arranged at intervals in the length direction of the strip-shaped structure.
3. The apparatus for pickling tubes and bars as claimed in claim 1, further comprising an anti-corrosion layer (32);
the shape of the anti-corrosion layer (32) is matched with the shape of the surface of the tube rod material rack (3), and the anti-corrosion layer is arranged on the surface of the tube rod material rack (3).
4. The pickling device for pipe and bar materials according to claim 3,
the anti-corrosion layer (32) is made of acid corrosion resistant fluoroplastic;
the anti-corrosion layer (32) is bonded on the surface of the pipe rod material rack (3).
5. The apparatus for pickling a pipe or bar according to claim 1, further comprising:
and the pipe and bar moving assembly is used for hoisting the pipe and bar (4) and placing or removing the pipe and bar (4) from the pickling tank (1).
6. The pickling device for pipe and bar materials according to claim 5,
the bar and tube moving assembly comprises: the device comprises a travelling crane and a pipe and bar sling (2) connected with the travelling crane;
the pipe and bar hanging belts (2) are used for hoisting the pipe and bar (4);
the travelling crane is used for controlling the pipe and bar hanging strips (2) to move, so that the pipe and bar hanging strips (2) drive the pipe and bar (4) to be placed into or moved out of the pickling tank (1).
7. The pickling device for pipe and bar materials according to claim 6,
the tube and bar harness (2) comprises: the lifting rope (21) and a plurality of plastic bone sections (22) sleeved outside the lifting rope (21).
8. The pickling device for pipe and bar materials according to claim 7,
the lifting rope (21) is made of stainless steel wires;
the plastic condyle (22) is made of acid corrosion resistant fluoroplastic.
9. The pickling apparatus for pipe and bar materials according to claim 7 or 8,
the length of the plastic condyle (22) is 20 mm-200 mm.
10. The pickling device for pipe and bar materials according to claim 9,
both ends of the plastic condyle (22) are subjected to fillet treatment;
the edges and corners of the pipe rod material rack (3) are subjected to rounding treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020947609.0U CN212404293U (en) | 2020-05-29 | 2020-05-29 | Pipe bar pickling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020947609.0U CN212404293U (en) | 2020-05-29 | 2020-05-29 | Pipe bar pickling device |
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| Publication Number | Publication Date |
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| CN212404293U true CN212404293U (en) | 2021-01-26 |
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| CN202020947609.0U Active CN212404293U (en) | 2020-05-29 | 2020-05-29 | Pipe bar pickling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113403626A (en) * | 2021-06-30 | 2021-09-17 | 上海惠铎环境能源科技股份有限公司 | Automatic device for steel pipe hot-dip galvanizing and pickling and control method |
-
2020
- 2020-05-29 CN CN202020947609.0U patent/CN212404293U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113403626A (en) * | 2021-06-30 | 2021-09-17 | 上海惠铎环境能源科技股份有限公司 | Automatic device for steel pipe hot-dip galvanizing and pickling and control method |
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