CN113930566B - Annular water-cooling protective plate and manufacturing method thereof - Google Patents
Annular water-cooling protective plate and manufacturing method thereof Download PDFInfo
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- CN113930566B CN113930566B CN202111111948.0A CN202111111948A CN113930566B CN 113930566 B CN113930566 B CN 113930566B CN 202111111948 A CN202111111948 A CN 202111111948A CN 113930566 B CN113930566 B CN 113930566B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/12—Opening or sealing the tap holes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/26—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers or the like
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/10—Cooling; Devices therefor
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
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- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
The invention belongs to the technical field of hydraulic clay guns, and relates to an annular water-cooling protective plate and a manufacturing method thereof. The annular water-cooling protective plate comprises a steel plate and an arc-shaped protective plate, wherein the steel plate and the arc-shaped protective plate are fixedly welded, and a water-cooling pipe structure is arranged on the inner arc surface of the arc-shaped protective plate; the water-cooled tube structure adopts a spiral tube arrangement mode, and comprises a central tube assembly, wherein the central tube assembly consists of two elbows and a central tube, the A end of the first elbow is welded with one end of the central tube, and the other end of the central tube is welded with the C end of the second elbow; the B end of the first elbow is communicated with a water inlet pipeline, the D end of the second elbow is communicated with a water return pipeline, and the water inlet pipeline and the water return pipeline are arranged in a staggered mode. According to the invention, the processing of the water-cooling pipe structure is mainly carried out in a bent pipe forming mode, so that the method has the advantages of small welding amount and small operation difficulty, and the reliability of a finished product is high under the same water pressure using condition.
Description
Technical Field
The invention belongs to the technical field of hydraulic clay guns, and relates to an annular water-cooling protective plate and a manufacturing method thereof.
Background
The hydraulic mud gun is a necessary stokehole device in the smelting industry, and has the function of quickly and accurately blocking a tapping hole after tapping so as to enable a blast furnace to quickly enter the next cycle of operation. The hydraulic mud gun mud beating mechanism is mainly used for pressing the mud gun into a tapping channel to realize plugging operation; according to the working condition of use, the arc surface of the bottom of the gun body of the mud beating mechanism is close to an iron notch during working, the temperature of the operating environment is high, and a water-cooling protective plate is generally arranged at the bottom of the gun body of the mud beating mechanism in order to insulate heat and protect the gun body as far as possible. At present, the manufacturing of the water-cooling protective plate is mainly performed by welding, so the reliability in use mainly depends on the quality of welding, and the problems of deformation, water leakage and the like often occur in use under the influence of factors such as heat radiation and the like.
The existing water-cooling protective plate mainly comprises a box body water-cooling protective plate structure and a snake-shaped water-cooling protective plate structure. Referring to fig. 1, a box body water-cooling protection plate is formed by welding steel plates with certain thickness into a box body structure, the box body structure is arranged at the bottom of a gun body of a mud beating mechanism for cooling protection, and a baffle is arranged in the middle of the box body structure to form a loop. Regarding the 'S-shaped' water-cooling protective plate, in the arc-shaped protective plate, the steel pipes are arranged into the form of water-cooling pipes which are connected end to end, folded back once and fed in and discharged once, the axial direction of the protective plate adopts the straight steel pipes which are arranged side by side, and the end part of each straight steel pipe is welded and connected with two adjacent straight steel pipes by the bent pipe with the inclined triangular structure, so that the water-cooling protective plate structure with the appearance similar to the 'S-shaped' shape is finally formed.
However, the reliability of the two structures mainly depends on the quality and the tightness of a welding seam when the two structures are used, the box body water-cooling protection plate needs to be subjected to welding deformation correction when being welded, the welding quantity of the 'snake-shaped' water-cooling protection plate is large, the operation process requirement is high, the production difficulty is large, the number of welding nodes is large, and the leakage risk is high.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the annular water-cooling protection plate and the manufacturing method thereof.
In order to achieve the purpose, the invention provides the following technical scheme:
on one hand, the invention provides an annular water-cooling protection plate which comprises a steel plate and an arc-shaped protection plate, wherein the steel plate and the arc-shaped protection plate are fixedly welded, and a water-cooling pipe structure is arranged on the inner arc surface of the arc-shaped protection plate; the water-cooled tube structure adopts a spiral tube arrangement mode, and comprises a central tube assembly, wherein the central tube assembly consists of two elbows and a central tube, the A end of the first elbow is welded with one end of the central tube, and the other end of the central tube is welded with the C end of the second elbow; the B end of the first elbow is communicated with the water inlet pipeline, the D end of the second elbow is communicated with the water return pipeline, and the water inlet pipeline and the water return pipeline are arranged in a staggered mode.
Furthermore, the water inlet pipeline is led out along one side of the upper end face of the arc-shaped protection plate and communicated with the water inlet through a first connector, and the water return pipeline is led out along the other side of the upper end face of the arc-shaped protection plate and communicated with the water outlet through a second connector.
Further, the first interface and the second interface are arranged oppositely.
Further, the first elbow and the second elbow are both 180-degree elbows.
Further, the center tube is located the centre department of the intrados face of arc backplate.
Further, the steel plate is fixedly installed on the arc surface at the bottom of the gun body of the mud beating mechanism through a fastening piece.
On the other hand, the invention also provides a manufacturing method of the annular water-cooling protection plate, which comprises the following steps:
1) Welding the first elbow, the second elbow and the central pipe to form a central pipe assembly;
2) A water inlet pipeline and a water return pipeline are respectively formed in a spiral pipe arrangement mode;
3) The water inlet pipeline, the water return pipeline and the central pipe assembly are respectively placed on the inner arc surface of the arc-shaped protection plate to be assembled and corrected, and then the water inlet pipeline and the water return pipeline are respectively welded with the central pipe assembly to form a water cooling pipe structure;
4) Adjusting the mounting positions of the water-cooling tube structure and the arc-shaped protection plate, loading a steel plate, and performing assembly welding, wherein the steel plate is fixedly welded with the arc-shaped protection plate.
Further, step 2), the pipe fittings of the water inlet pipeline and the water return pipeline are bent by utilizing the annular pipe bending device.
Further, the circular tube bending apparatus includes: the pipe bending assembly comprises four height adjusting shafts and a bending part;
the bending part is detachably arranged at the top end of the height adjusting shaft, a plurality of pins are uniformly arranged on two side surfaces of the height adjusting shaft along the vertical direction, and the diameter of the height adjusting shaft is sequentially reduced from top to bottom;
the bending part comprises a handle support which is arranged at the top end of the height adjusting shaft, a handle is arranged on one side of the handle support, a forming die and a guide die are arranged in the handle support, an arc groove for placing a pipe fitting is formed between the forming die and the guide die, and the four height adjusting shafts are symmetrically placed in four sliding grooves of the workbench when in use.
Furthermore, one end of the sliding groove is close to one corner of the workbench, the other end of the sliding groove is close to the center of the workbench, a plurality of positioning grooves which are uniformly distributed and used for limiting the position of the bottom end of the height adjusting shaft are arranged in the sliding groove, and the positioning grooves are provided with key grooves matched with the pins.
Further, the forming die has a diameter larger than that of the guide die.
Furthermore, the diameters of the positioning grooves are gradually increased from one end close to the corner of the workbench to one end close to the center of the workbench, and the diameter of each positioning groove is matched with the diameter of the height adjusting shaft corresponding to the pin.
Further, the annular pipe bending device further comprises a bending die, and the bending die comprises a supporting part and a pressing part.
Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects: form through first elbow, second elbow and center tube welding and be similar to the center tube subassembly of "S" shape, adopt spiral stringing mode again to carry out the stringing to water intake pipe, return water pipeline to be linked together formation plane "return" shape water-cooling pipe structure with water intake pipe, return water pipeline respectively with the center tube subassembly, install it in the interior cambered surface of arc backplate in order to constitute annular water-cooling protection board, in order to reduce the operational environment temperature of beating mud mechanism. According to the annular water-cooling protective plate, the processing of the water-cooling pipe structure is mainly performed in a bent pipe forming mode, so that the annular water-cooling protective plate has the advantages of small welding amount and small operation difficulty, and the reliability of a finished product is high under the same water pressure using condition.
In addition, the tool for bending the water inlet pipeline and the water return pipeline pipe fittings is simple in structure, easy to machine and manufacture and wide in application range, the bent pipe fittings can be avoided, the arc positions of the bent pipe fittings are not prone to deformation, and the bending of the 'return' shaped water cooling pipe structures in the annular water cooling guard plates is achieved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
FIG. 1 is a structural diagram of a water-cooled protective plate of a conventional box body;
FIG. 2 is a structural diagram of a prior serpentine water-cooling protection plate;
FIG. 3 is a structural diagram of an annular water-cooling protection plate provided by the present invention;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a side view of FIG. 3;
FIG. 6 is a schematic view of the assembly structure of the water cooling tube according to the present invention;
FIG. 7 is a perspective view of an annular tube bending apparatus provided in accordance with the present invention;
FIG. 8 is a front view of the annular tube bending apparatus provided in the present invention;
FIG. 9 is a top view of a table provided by the present invention;
fig. 10 is a front view of the bending die according to the present invention.
Wherein: 1. a steel plate; 2. an arc-shaped guard plate; 3. a first elbow; 4. a pipe fitting; 5. a central tube; 6. a second elbow; 7. a water inlet pipeline; 8. a water return pipeline; 9. a first interface; 10. a second interface; 11. a height adjustment shaft; 12. a pin; 13. a handle support; 14. a handle; 15. a forming die; 16. guiding a die; 17. a circular arc groove; 18. a work table; 19. a sliding groove; 20. a key slot; 21. a support portion; 22. and a pressing part.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The following description refers to the accompanying drawings in which the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatus consistent with certain aspects of the invention, as detailed in the appended claims.
In order to make those skilled in the art better understand the technical solutions of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and examples.
Examples
Referring to fig. 3-5, the invention provides an annular water-cooling protection plate, which comprises a steel plate 1 and an arc-shaped protection plate 2, wherein the steel plate 1 and the arc-shaped protection plate 2 are welded and fixed, and a water-cooling pipe structure is installed on the inner arc surface of the arc-shaped protection plate 2; the water-cooled tube structure adopts a spiral tube arrangement mode, and comprises a central tube assembly, wherein the central tube assembly consists of two elbows and a central tube 5, the A end of the first elbow 3 is welded with one end of the central tube 5, and the other end of the central tube 5 is welded with the C end of the second elbow 6; the B end of the first elbow 3 is communicated with a water inlet pipeline 7, the D end of the second elbow 6 is communicated with a water return pipeline 8, and the water inlet pipeline 7 and the water return pipeline 8 are arranged in a staggered mode.
Further, the water inlet pipeline 7 is led out along one side of the upper end face of the arc-shaped protection plate 2 and communicated with the water inlet through a first connector 9, and the water return pipeline 8 is led out along the other side of the upper end face of the arc-shaped protection plate 2 and communicated with the water outlet through a second connector 10.
Further, the first interface 9 and the second interface 10 are oppositely arranged.
Further, the first elbow 3 and the second elbow 6 are both 180-degree elbows.
Further, the central tube 5 is located at the center of the intrados of the arc-shaped protection plate 2.
Further, the steel plate 1 is fixedly installed on an arc surface at the bottom of the gun body of the mud beating mechanism through a fastening piece.
The annular water-cooling protective plate is characterized in that a water-cooling pipe structure which is arranged into a shape of a Chinese character 'hui' around the central point of the arc-shaped protective plate 2 is arranged in the arc-shaped protective plate 2 by adopting steel pipes. According to the specification of the selected steel pipe, a central pipe assembly similar to an S-shaped structure is formed by welding a first elbow 3, a second elbow 6 and a central pipe 5 in the center of an arc-shaped protection plate 2, a water inlet pipeline 7 and a water return pipeline 8 are wound into the S-shaped structure around the central pipe assembly of the S-shaped structure at equal intervals respectively, finally, the water inlet pipeline 7 and the water return pipeline 8 are led out along two opposite sides of the upper end face of the arc-shaped protection plate 2 respectively, the water inlet pipeline 7 is communicated with a water inlet through a first connector 9, and the water return pipeline 8 is communicated with a water outlet through a second connector 10, so that the annular water-cooling protection plate shown in figure 3 is formed.
On the other hand, the invention also provides a manufacturing method of the annular water-cooling protection plate, which comprises the following steps:
1) The first elbow 3, the second elbow 6 and the central tube 5 (steel tube) are welded to form a central tube component similar to the S shape shown in figure 6, or when the diameter and the wall thickness of the steel tube meet certain conditions, the S-shaped central tube component formed by welding the two elbows and the steel tube can be directly formed by bending two ends of the steel tube by adopting a ring-shaped tube bending device;
2) A water inlet pipeline 7 and a water return pipeline 8 are respectively formed in a spiral pipe arrangement mode: specifically, the steel pipe is bent into a planar "return" shape as shown in fig. 6 using an annular pipe bending apparatus; when the plane return-shaped pipeline is bent, the length of the short edge needs to be bent according to the arc length of the steel pipe calculated according to the size of the arc protection plate 2 marked by a drawing, and after the plane return-shaped pipeline is bent, the plane return-shaped pipeline is placed on a corresponding bending mould to be bent so as to enable the arc of the short edge to be bent, and the integral radian of the plane return-shaped pipeline is matched with the radian of the inner arc surface of the arc protection plate 2;
3) The plane 'return' shaped pipeline (comprising a water inlet pipeline 7 and a water return pipeline 8) and the central pipe component are respectively placed on the inner arc surface of the arc-shaped protection plate 2 for assembly and correction, and then the plane 'return' shaped pipeline and the central pipe component are welded to form an integrated water cooling pipe structure;
4) Adjusting the mounting positions of the water-cooled tube structure and the arc-shaped protection plate 2, loading the steel plate 1 into the water-cooled tube structure, and performing assembly welding, wherein the steel plate 1 is fixedly welded with the arc-shaped protection plate 2. Specifically, the steel plate 1 and the arc-shaped protection plate 2 are welded through a single-side fillet weld.
The annular water-cooling protective plate prepared by the preparation method is subjected to a hydrostatic test under the test pressure of 1MPa for 10min, and has no leakage.
In still another aspect, referring to fig. 7 to 8, the above circular pipe bending apparatus for bending a steel pipe includes: the pipe bending assembly comprises four height adjusting shafts 11 and a bending part;
the bending part is detachably mounted at the top end of the height adjusting shaft 11, a plurality of pins 12 are uniformly arranged on two side surfaces of the height adjusting shaft 11 along the vertical direction, and the diameter of the height adjusting shaft 11 is reduced from top to bottom;
the bending part comprises a handle support 13, the handle support 13 is installed at the top end of the height adjusting shaft 11, a handle 14 is arranged on one side of the handle support 13, a forming die 15 and a guide die 16 are arranged in the handle support 13, an arc groove 17 for placing the pipe fitting 4 is formed between the forming die 15 and the guide die 16, and the four height adjusting shafts 11 are symmetrically placed in four sliding grooves 19 of a workbench 18 when in use.
Further, as shown in fig. 9, one end of the sliding groove 19 is close to one corner of the workbench 18, and the other end is close to the center of the workbench 18, a plurality of positioning grooves which are uniformly distributed and used for limiting the bottom end position of the height adjusting shaft 11 are arranged in the sliding groove 19, and the positioning grooves are provided with key grooves 20 which are matched with the pins 12.
Specifically, 6 positioning grooves are arranged in each sliding groove 19, the number of the positioning grooves is the same as that of the pins 12 arranged at two ends of the height adjusting shaft 11, and the number of the positioning grooves and the number of the pins 12 can be set according to the number of bending turns of the water pipe of the annular water-cooling protection plate in actual use. Every time the height adjusting shaft 11 moves towards the center once, the positioning groove corresponding to the diameter of the height adjusting shaft 11 can fix the height adjusting shaft 11 up and down, and then the pin 12 is clamped through the key groove 20 by rotating the height adjusting shaft 11, so that the height adjusting shaft 11 is further fixed.
Further, the forming die 15 has a diameter larger than that of the guide die 16, and both are located at the same height.
Further, the depth of the sliding groove 19 gradually increases from one corner of the table 18 to the center of the table 18, so that the pipe 4 at the inner ring is the lowest and the pipe 4 at the outer ring is the highest.
Further, as shown in fig. 10, the annular pipe bending apparatus further includes a bending mold including a support portion 21 and a pressing portion 22.
The specific working process of the device is as follows: the four height adjusting shafts 11 are fixed in four positioning operations which are symmetrical to each other, and the height adjusting shafts 11 can ensure that each bent ring of annular pipe fittings 4 are at different heights, so that the bent pipe fittings 4 are avoided, and the bending of the outer ring of pipe fittings 4 is facilitated; the height adjusting shaft 11 can slide along the sliding groove 19 of the workbench 18, and after the height adjusting shaft 11 slides to a designated circular hole position in the sliding groove 19, the height adjusting shaft 11 is rotated by an angle, so that the pin 12 on the height adjusting shaft is inserted into the key groove 20 on the workbench 18, and the height adjusting shaft 11 is prevented from rotating; placing the pipe fitting 4 into the arc groove 17 in the elbow component, rotating the handle 14, and bending the first arc of the 'return' shaped pipeline; after one circle of bending is finished, the height adjustment is realized by utilizing the change of different diameters of the excircle of the height adjusting shaft 11, the bent pipe fitting 4 is avoided, the outer circle of the annular pipe fitting 4 is bent, and the bending of each circle of the 'return' pipeline can be realized by repeating for several times; and finally, placing the bent 'return' pipeline into a bending mould, and bending the 'return' pipeline into an arc shape by using pressure, so that the 'return' pipeline is convenient to install on the inner arc surface of the arc-shaped protection plate 2.
The above description is merely illustrative of particular embodiments of the invention that enable those skilled in the art to understand or practice the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention.
It is to be understood that the present invention is not limited to what has been described above, and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (11)
1. The manufacturing method of the annular water-cooling protection plate is characterized by comprising the following steps:
1) A first elbow (3), a second elbow (6) and a central pipe (5) are welded to form a central pipe component;
2) A water inlet pipeline (7) and a water return pipeline (8) are respectively formed in a spiral pipe arrangement mode, and pipe fittings (4) of the water inlet pipeline (7) and the water return pipeline (8) are bent by utilizing a ring-shaped pipe bending device;
3) The water inlet pipeline (7), the water return pipeline (8) and the central pipe assembly are respectively placed on the inner arc surface of the arc-shaped protection plate (2) to be assembled and corrected, and then the water inlet pipeline (7) and the water return pipeline (8) are respectively welded with the central pipe assembly to form a water cooling pipe structure;
4) Adjusting the mounting positions of the water-cooled tube structure and the arc-shaped protection plate (2), loading a steel plate (1) and performing assembly welding, wherein the steel plate (1) and the arc-shaped protection plate (2) are welded and fixed;
the ring pipe bending device comprises: the pipe bending assembly comprises four height adjusting shafts (11) and a bending part;
the bending part is detachably mounted at the top end of the height adjusting shaft (11), a plurality of pins (12) are uniformly arranged on two side surfaces of the height adjusting shaft (11) along the vertical direction, and the diameter of the height adjusting shaft (11) is reduced from top to bottom;
the bending part comprises a handle support (13), the handle support (13) is installed at the top end of the height adjusting shaft (11), a handle (14) is arranged on one side of the handle support (13), a forming die (15) and a guide die (16) are arranged in the handle support (13), an arc groove (17) used for placing the pipe fitting (4) is formed between the forming die (15) and the guide die (16), and the four height adjusting shafts (11) are symmetrically placed in four sliding grooves (19) of a workbench (18) when in use.
2. The method of claim 1, wherein the forming die (15) has a diameter larger than that of the guide die (16).
3. The manufacturing method according to claim 1, characterized in that one end of the sliding groove (19) is close to one corner of the workbench (18), the other end is close to the center of the workbench (18), a plurality of positioning grooves which are uniformly distributed and used for limiting the bottom end position of the height adjusting shaft (11) are arranged in the sliding groove (19), and the positioning grooves are provided with key grooves (20) matched with the pins (12).
4. A method according to claim 3, wherein the diameter of the positioning groove gradually increases from a position near the corner of the table (18) to a position near the center of the table (18), and the diameter of each positioning groove is adapted to the diameter of the height-adjusting shaft (11) to which the pin (12) corresponds.
5. The manufacturing method according to claim 1, wherein the annular pipe bending apparatus further comprises a bending die including a support portion (21) and a pressing portion (22).
6. The production method according to any one of claims 1 to 5, wherein the A end of the first bend (3) is welded to one end of a central tube (5), and the other end of the central tube (5) is welded to the C end of the second bend (6); the B end of the first elbow (3) is communicated with a water inlet pipeline (7), the D end of the second elbow (6) is communicated with a water return pipeline (8), and the water inlet pipeline (7) and the water return pipeline (8) are arranged in a staggered mode.
7. The manufacturing method of the water-saving water tank is characterized in that the water inlet pipeline (7) is led out along one side of the upper end surface of the arc-shaped protection plate (2) and communicated with the water inlet through a first connector (9), and the water return pipeline (8) is led out along the other side of the upper end surface of the arc-shaped protection plate (2) and communicated with the water outlet through a second connector (10).
8. Method of manufacturing according to claim 7, characterized in that said first interface (9) and said second interface (10) are arranged opposite one another.
9. The method according to claim 6, characterized in that the first bend (3) and the second bend (6) are both 180 ° bends.
10. The production method according to claim 6, wherein the central tube (5) is located at the center of the intrados of the arc-shaped protector plate (2).
11. The manufacturing method according to claim 6, characterized in that the steel plate (1) is fixedly arranged on the arc surface at the bottom of the body of the mud-beating mechanism through a fastener.
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| CN202111111948.0A CN113930566B (en) | 2021-09-18 | 2021-09-18 | Annular water-cooling protective plate and manufacturing method thereof |
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