Production process of ceramic tube for mine

Abstract

The invention discloses a production process of a ceramic pipe for a mine, and belongs to the technical field of production of the ceramic pipe for the mine, and the production process is characterized by comprising the following steps: a, feeding: an operator puts a pipeline into a centrifugal mechanism for fixing through a forklift; b, eccentricity adjustment, wherein an operator uses an adjusting mechanism to adjust the concentricity of the pipeline; c, loading: after the concentricity of the pipeline is adjusted, ingredients for preparing the ceramic layer are put into the pipeline, and then an adjusting mechanism is removed; and d, pipe manufacturing: sealing the two ends of the pipeline through a sealing cover mechanism, starting a centrifugal mechanism to enable the pipeline to rotate, igniting the ingredients through electric arc of a welding machine in the rotating process, melting the ingredients, coating the inner wall of the pipeline with the ingredients, and finally forming to obtain the ceramic pipe. According to the scheme, the accuracy of concentricity adjustment can be ensured, and the quality of the prepared ceramic tube is improved.

Description

Technical Field

[0001] The invention relates to the technical field of production of ceramic pipes for mines, in particular to a production process of ceramic pipes for mines. Background Art

[0002] In mining operations, pipelines are often used to transport ore, so pipes with high wear resistance are required for transportation. Ceramic pipes are hard, have high hardness, and have good wear resistance, making them the first choice for mining pipes. The existing preparation of ceramic pipes is to place the pipe in a centrifugal pipe making machine, and after adjusting the concentricity of the pipe, put the ceramic layer ingredients into the pipe, cover the pipe and ignite the ingredients, use the centrifugal pipe making machine to drive the pipe to rotate, and coat the ingredients on the inner wall of the pipe by centrifugal force. However, the concentricity of the pipe is often adjusted by placing a drawing needle on the top of the pipe, and then placing the pipe on the centrifugal pipe making machine. The height of the pipe is adjusted while the pipe is rotating, so that when the pipe rotates, it can be manually observed whether the outer wall of the pipe is always in contact with the needle tip of the drawing needle. If it is always in contact, the adjustment is completed. This adjustment method relies too much on the eyes and experience of the workers, and the adjustment accuracy is not high. It is easy to cause gaps at the end of the pipe when the cap is closed, resulting in leakage when coating the ceramic layer, affecting the quality of the pipe. In view of this, a production process of ceramic pipes for mines is proposed. Summary of the invention

[0003] In view of the problems existing in the prior art, the object of the present invention is to provide a production process for ceramic pipes for mining, which can ensure the accuracy of concentricity adjustment and improve the quality of the prepared ceramic pipes.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: A production process of ceramic pipes for mining, comprising the following steps: a. Loading: The operator uses a forklift to place the pipe into the centrifugal mechanism for fixation; b. Adjust eccentricity: The operator uses the adjustment mechanism to adjust the concentricity of the pipeline; c. Loading: After adjusting the concentricity of the pipeline, put the ingredients for preparing the ceramic layer into the pipeline and then remove the adjustment mechanism; d. Pipe making: Seal both ends of the pipe through the capping mechanism, start the centrifugal mechanism to make the pipe rotate, use the welding arc to ignite the ingredients during the rotation, the ingredients melt and coat the inner wall of the pipe, and finally form the ceramic pipe.

[0005] In some embodiments, the centrifuge mechanism is installed on a base, and the centrifuge mechanism includes at least two support rings, the two support rings are rotatably connected to a control tube through a rotating shaft, and multiple fixing bolt rods are provided at both ends of the control tube. A driving motor is provided on the base, and a pulley is connected between the driving motor and the control tube. The control tube fixes the pipeline through the multiple fixing bolt rods.

[0006] In some embodiments, the adjustment mechanism includes two fixed half rings, each of which is provided with at least three L-shaped plates, each of which is provided with a locking bolt, and an adjustment area is provided between the L-shaped plate and the fixed half ring, and the adjustment area is used to adjust the concentricity of the pipeline, and a support hook is provided at the inner position of both ends of each fixed half ring, and the support hooks on the two fixed half rings are plugged into each other.

[0007] In some embodiments, a first connecting groove is provided on each of the fixed half rings at the position of the L-shaped plate, an adjusting bent plate is provided in the adjusting area, a first connecting block is fixedly connected to the inner side of the adjusting bent plate, the first connecting block is interference fit with the first connecting groove, a second connecting groove is provided on the outer side of the adjusting bent plate, and an expansion plate is slidably connected to the second connecting groove. In some embodiments, the cross-sectional width of the expansion plate is consistent with the cross-sectional width of the fixing half ring.

[0008] In some embodiments, a second connecting block is provided on the inner side of the expansion plate, and a third connecting groove is provided on the outer side. The shape and size of the first connecting block are the same as those of the first connecting groove, the shape and size of the second connecting block are the same as those of the second connecting groove and the third connecting groove, and the size of the first connecting block is larger than that of the second connecting block.

[0009] In some embodiments, the sealing mechanism includes two end covers, each of which is provided with an annular groove, each of which is clamped with the pipe, and the two end covers are provided with tensioning members, and the tensioning members include two sliding rods and two tensioning rods, and nuts are provided at the ends of the two sliding rods, the two sliding rods and the two tensioning rods are cross-shaped, the two tensioning rods are centrally symmetrically arranged, and heat dissipation holes are opened in the middle of the two end covers.

[0010] In some embodiments, one end of each of the tensioning rods is inserted with a rotating disk, and the other end is screwed to the nut. A first thread is provided on each of the tensioning rods near the rotating disk, and a second thread is provided on each of the tensioning rods near the nut. The directions of the first thread and the second thread are opposite.

[0011] In summary, the present invention has the following beneficial effects: The present invention is provided with a centrifugal mechanism, an adjusting mechanism and a sealing mechanism. The concentricity of the pipeline and the control tube is adjusted to be the same through the cooperation of the two fixed semi-rings in the centrifugal mechanism and the adjusting mechanism with the adjusting area and the locking bolt, thereby ensuring that the concentricity of each prepared ceramic tube is the same, eliminating the influence of human visual observation, and improving the preparation quality of the ceramic tube. In addition, the centrifugal mechanism and the sealing mechanism are used to coat the ingredients of the prepared ceramic layer on the inner wall of the pipeline during the rotation process. No material is leaked during the rotation process, and no sparks are splashed, thereby ensuring the safety of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the pipeline eccentricity adjustment stage of the present invention; Figure 2 It is a schematic diagram of the overall structure of the centrifugal mechanism of the present invention; Figure 3 It is a schematic diagram of the overall structure of the regulating mechanism of the present invention; Figure 4 It is a partial structural schematic diagram of the regulating mechanism of the present invention; Figure 5 The structural diagram of the invention is to adjust the bending plate and the expansion plate; Figure 6 This is a schematic diagram of the overall structure of the pipeline in the stage of preparing a ceramic layer of the present invention; Figure 7 It is a partial structural schematic diagram of the capping mechanism of the present invention; Figure 8 It is a schematic diagram of the overall structure of the capping mechanism of the present invention; Fig. 9 It is a schematic diagram of the overall structure of the tension rod of the present invention; Fig.10 It is a schematic diagram of the dismantling stage of the adjustment mechanism of the present invention.

[0013] In the figure: 1. base; 2. centrifugal mechanism; 21. support ring; 22. control tube; 23. pulley; 24. drive motor; 25. fixing bolt rod; 3. pipeline; 4. adjustment mechanism; 41. fixing half ring; 411. first connecting groove; 42. L-shaped plate; 43. locking bolt; 44. adjusting bent plate; 441. first connecting block; 442. second connecting groove; 45. expansion plate; 451. second connecting block; 452. third connecting groove; 46. support hook; 5. capping mechanism; 51. end cover; 52. annular groove; 53. tension rod; 531. rotating wheel; 532. first thread; 533. second thread; 54. sliding rod; 55. heat dissipation hole; 56. nut. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0015] See also Figure 1-9 , a production process of ceramic pipes for mining, comprising the following steps: a. Loading: The operator puts the pipe 3 into the centrifugal mechanism 2 by a forklift, and then fixes the pipe 3 by using the fixing bolt rod 25 in the centrifugal mechanism 2. At this time, the fixing bolt rod 25 only achieves the function of supporting and fixing, and does not reach the level of being able to drive the pipe 3 to rotate together; b. Adjusting the eccentricity: The operator uses the adjustment mechanism 4 to adjust the concentricity of the pipeline 3. Two fixed half rings 41 are installed at both ends of the pipeline 3. The concentricity of the pipeline 3 is adjusted to be consistent with the concentricity of the control tube 22 in the centrifugal mechanism 2 through the adjustment areas on the two fixed half rings 41; c. Loading: After adjusting the concentricity of the pipe 3, the ingredients for preparing the ceramic layer are placed into the pipe 3 and then the adjustment mechanism 4 is removed; d. Pipe making: Seal both ends of the pipe 3 through the capping mechanism 5, start the centrifugal mechanism 2 to rotate the pipe 3, and tighten the fixing bolt rod 25 to the extent that the pipe 3 is driven to rotate together. During the rotation process, the welding arc is used to ignite the ingredients, and the ingredients are melted and coated on the inner wall of the pipe 3. Finally, the ceramic pipe is formed.

[0016] In some embodiments, the centrifuge mechanism 2 is installed on the base 1, and the centrifuge mechanism 2 includes at least two support rings 21. The two support rings 21 are rotatably connected to the control tube 22 through a rotating shaft. Both ends of the control tube 22 are provided with multiple fixing bolt rods 25. A driving motor 24 is provided on the base 1, and a pulley 23 is connected between the driving motor 24 and the control tube 22. The control tube 22 is fixed to the pipeline 3 through multiple fixing bolt rods 25.

[0017] Reference Figure 1-2When fixing the pipe 3, the operator transports the pipe 3 to the control pipe 22 by a forklift. The control pipe 22 is also provided with a fixing bolt rod 25, which works together with the fixing bolt rods 25 at both ends to fix and support the pipe 3; when coating the ceramic layer ingredients, the pipe 3 needs to be rotated. At this time, the operator controls the drive motor 24 to work, and the drive motor 24 drives the control pipe 22 to rotate through the pulley 23, and then the control pipe 22 drives the pipe 3 to rotate through the fixing bolt rod 25, so that the ceramic layer ingredients in the pipe 3 are evenly coated on the inner wall of the pipe 3; it should be noted that the working principle of the centrifugal mechanism 2 is consistent with the principle of the existing centrifugal pipe making machine, both of which are used for pipe making, and no further elaboration is made here.

[0018] In some embodiments, the adjustment mechanism 4 includes two fixed half rings 41, each fixed half ring 41 is provided with at least three L-shaped plates 42, each L-shaped plate 42 is provided with a locking bolt 43, and an adjustment area is provided between the L-shaped plate 42 and the fixed half ring 41, and the adjustment area is used to adjust the concentricity of the pipeline 3. A support hook 46 is provided at the inner position of both ends of each fixed half ring 41, and the support hooks 46 on the two fixed half rings 41 are plugged into each other.

[0019] Reference Figure 3 During installation, two operators are required to operate at both ends of the pipe 3. Taking the operation at one end as an example, the operator fixes the pipe 3 and the upper half of the control pipe 22 with a fixing half ring 41 by using the three L-shaped plates 42 and the adjusting area between the fixing half ring 41, and then fixes the pipe 3 and the lower half of the control pipe 22 with another fixing half ring 41. Finally, the locking bolt 43 is rotated to make the concentricity of the pipe 3 consistent with the concentricity of the control pipe 22, that is, the eccentricity adjustment of the pipe 3 is completed, ensuring that the concentricity of each ceramic pipe is consistent after preparation. When the operator uses another fixing half ring 41, the fixing half ring 41 is used to fix the pipe 3 and the lower half of the control pipe 22. Finally, the locking bolt 43 is rotated to make the concentricity of the pipe 3 consistent with the concentricity of the control pipe 22, that is, the eccentricity adjustment of the pipe 3 is completed, ensuring that the concentricity of each ceramic pipe is consistent after preparation. When the fixed half ring 41 fixes the pipeline 3 and the lower half of the control tube 22, the operator holds the two support hooks 46 with both hands respectively, and the support hooks 46 on the two fixed half rings 41 are plugged into each other. A convex strip is welded on the support hook 46 on one fixed half ring 41, and a groove is opened on the support hook 46 on the other fixed half ring 41. The operator uses the convex strip of the support hook 46 on one fixed half ring 41 and the groove of the support hook 46 on the other fixed half ring 41 to position them, so that the two support hooks 46 form a complete circular ring, thereby ensuring the accuracy of the two fixed half rings 41 in adjusting the concentricity of the pipeline 3.

[0020] In some embodiments, a first connecting groove 411 is provided on each fixed half ring 41 at the position of the L-shaped plate 42, an adjusting bent plate 44 is provided in the adjusting area, a first connecting block 441 is fixedly connected to the inner side of the adjusting bent plate 44, the first connecting block 441 is interference fit with the first connecting groove 411, a second connecting groove 442 is provided on the outer side of the adjusting bent plate 44, and an expansion plate 45 is slidably connected to the second connecting groove 442.

[0021] In some embodiments, the cross-sectional width of the expansion plate 45 is consistent with the cross-sectional width of the fixing half ring 41 .

[0022] In some embodiments, a second connecting block 451 is provided on the inner side of the expansion plate 45, and a third connecting groove 452 is provided on the outer side. The shape and size of the first connecting block 441 are the same as those of the first connecting groove 411, and the shape and size of the second connecting block 451 are the same as those of the second connecting groove 442 and the third connecting groove 452. The size of the first connecting block 441 is larger than that of the second connecting block 451.

[0023] Reference Figure 4-5 When the operator needs to replace a pipe 3 with a larger diameter, the operator can fix the adjusting bent plate 44 on the fixed half ring 41 by inserting a first connecting block 441 through the three first connecting grooves 411 on each fixed half ring 41, and the operator can also add the expanding plate 45 to the adjusting bent plate 44 by cooperating with the second connecting groove 442 on the adjusting bent plate 44 and the second connecting block 451 on the expanding plate 45. According to this principle, multiple expanding plates 45 can be added, thereby shortening the accommodation space of the adjustment area to accommodate pipes 3 of different diameters, so that the size of the adjustment area can just clamp the pipes 3 of different diameters and the control pipe 22 firmly, and adjust the concentricity of the pipes 3 of different diameters to be consistent with the concentricity of the control pipe 22, so as to ensure the adjustment accuracy. The cross-sectional width is consistent with the cross-sectional width of the fixed half ring 41, which can avoid the edge of the pipe 3 being compressed and bent when adjusting the concentricity, thereby affecting the quality of the pipe 3. The first connecting groove 411, the first connecting block 441, the second connecting groove 442 and the second connecting block 451 can all be T-shaped, but are not limited to this. The combination of the three first connecting grooves 411 and the first connecting block 441, and the combination of the three second connecting grooves 442 and the second connecting block 451 can improve the connection firmness between the adjusting bent plate 44 and the fixed half ring 41, and prevent the adjusting bent plate 44 on the fixed half ring 41 from falling off and affecting the adjustment when the pipe 3 and the lower half of the control tube 22 are fixed through the adjustment area, thereby improving work efficiency, and then the ingredients for preparing the ceramic layer are put into the pipe 3.

[0024] In some embodiments, the sealing mechanism 5 includes two end covers 51, each of which is provided with an annular groove 52, each of which is clamped with the pipeline 3, and the two end covers 51 are provided with tensioning members, which include two sliding rods 54 and two tensioning rods 53, and nuts 56 are provided at the ends of the two sliding rods 54, the two sliding rods 54 and the two tensioning rods 53 are cross-shaped, the two tensioning rods 53 are centrally symmetrically arranged, and heat dissipation holes 55 are opened in the middle of the two end covers 51.

[0025] In some embodiments, one end of each tensioning rod 53 is inserted with a rotating disk 531, and the other end is screwed with a nut 56. A first thread 532 is provided on each tensioning rod 53 near the rotating disk 531, and a second thread 533 is provided on each tensioning rod 53 near the nut 56. The directions of the first thread 532 and the second thread 533 are opposite.

[0026] Reference Figure 6-10When installing the capping mechanism 5, the adjusting mechanism 4 needs to be removed. When removing, the operator first inserts the two tension rods 53 in the capping mechanism 5 into the circular rings formed by the hooks 46 in the adjusting mechanism 4 at both ends of the pipe 3, and then sleeves the two end covers 51 on the two tension rods 53 respectively, thereby ensuring that the two end covers 51 and the two fixed semi-rings 41 are in the same straight line, and the end covers 51 are customized according to the distance between the pipe 3 and the control pipe 22, ensuring that the end covers 51 can be buckled on the pipe 3 and the control pipe 22 through the annular groove 52, and then the operator removes the adjusting mechanism 4 at one end of the pipe 3, and does not remove the other end for the time being. When removing the adjusting mechanism 4, it is only necessary to loosen the locking bolt 43, and then The adjustment areas of the two fixed semi-rings 41 are moved out of the ends of the pipe 3 and the control tube 22, and then the two fixed semi-rings 41 are separated one by one, without causing any obstruction to the end cover 51, that is, the removal of the adjustment mechanism 4 is completed, and then the end cover 51 is quickly buckled on the ends of the pipe 3 and the control tube 22 by using the annular groove 52 on the end cover 51 to seal, and then the rotary disc 531 is inserted into the tension rod 53, and the rotary disc 531 is plugged in through the cross groove and the cross convex strip, but is not limited to this, and the rotary disc 531 can be moved down from the tension rod 53, and the tension rod 53 can be rotated by rotating the rotary disc 531, and then the operator repeats the above operation to adjust the adjustment mechanism 4 at the other end of the pipe 3. The two end caps 51 are removed and the other end cap 51 is buckled on the pipe 3 and the control pipe 22. Then the two sliding rods 54 are inserted into the two end caps 51 and the nuts 56 are screwed on. Then the two operators simultaneously rotate the rotary discs 531 at both ends of the pipe 3 to rotate the two tension rods 53. Since the two end caps 51 are buckled on the pipe 3 and the control pipe 22, that is, they are restricted by the pipe 3 and the control pipe 22, under the rotation of the two tension rods 53, the first thread 532 and the second thread 533 cooperate with one end cap 51 respectively, forcing the two end caps 51 to move toward each other, so that the two end caps 51 are tightly connected to the edge of the pipe 3 to achieve seamless connection, and then the nuts 56 are tightened to complete. The pipe 3 is fixed in place to ensure the sealing strength of the two end caps 51 on the openings at both ends of the pipe 3. Finally, the operator controls the centrifugal mechanism 2 to start the pipe 3 to rotate. During the rotation of the pipe 3, the operator ignites the ingredients by using the arc of the welding machine. The ingredients melt and are coated on the inner surface of the pipe 3 under the action of the centrifugal force of the rotation of the pipe 3. Finally, the ceramic tube is obtained. Since the end cap 51 is tightly connected to the edge of the pipe 3, and the pipe 3 and the control tube 22 have the same concentricity, the sparks generated by the ingredients during the rotation of the pipe 3 will not splash from the end cap 51 and the edge of the pipe 3, and the heat generated will only be dissipated from the heat dissipation holes 55, ensuring the safety of the surrounding staff and improving the preparation quality of the ceramic tube.

[0027] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A production process for ceramic pipes for mining, characterized in that: The following steps are involved: a. Loading: The operator uses a forklift to place the pipe (3) into the centrifugal mechanism (2) and fix it; b. Adjusting the eccentricity: The operator uses the adjustment mechanism (4) to adjust the concentricity of the pipeline (3); c. Loading: After adjusting the concentricity of the pipe (3), the ingredients for preparing the ceramic layer are placed into the pipe (3) and then the adjustment mechanism (4) is removed; d. Pipe making: The two ends of the pipe (3) are sealed by a capping mechanism (5), and the centrifugal mechanism (2) is started to rotate the pipe (3). During the rotation, the welding arc is used to ignite the ingredients, and the ingredients are melted and coated on the inner wall of the pipe (3). Finally, the ceramic pipe is formed.

2. The production process of a ceramic pipe for mining according to claim 1, characterized in that: The centrifugal mechanism (2) is mounted on a base (1), and comprises at least two support rings (21), the two support rings (21) being rotatably connected to a control tube (22) via a rotating shaft, a plurality of fixing bolt rods (25) being provided at both ends of the control tube (22), a driving motor (24) being provided on the base (1), a pulley (23) being connected between the driving motor (24) and the control tube (22), and the control tube (22) being fixed to the pipeline (3) via the plurality of fixing bolt rods (25).

3. The production process of a ceramic pipe for mining according to claim 1, characterized in that: The adjustment mechanism (4) comprises two fixed half rings (41), each of the fixed half rings (41) being provided with at least three L-shaped plates (42), each of the L-shaped plates (42) being provided with a locking bolt (43), an adjustment area being provided between the L-shaped plates (42) and the fixed half rings (41), the adjustment area being used to adjust the concentricity of the pipeline (3), and a support hook (46) being provided at the inner position of both ends of each of the fixed half rings (41), and the support hooks (46) on the two fixed half rings (41) being plugged into each other.

4. The production process of a ceramic pipe for mining according to claim 3, characterized in that: A first connecting groove (411) is provided on each of the fixed half rings (41) at a position of the L-shaped plate (42); an adjusting bent plate (44) is provided in the adjusting area; a first connecting block (441) is fixedly connected to the inner side of the adjusting bent plate (44); the first connecting block (441) is interference fit with the first connecting groove (411); a second connecting groove (442) is provided on the outer side of the adjusting bent plate (44); and a diameter expansion plate (45) is slidably connected to the second connecting groove (442).

5. The production process of a ceramic pipe for mining according to claim 4, characterized in that: The cross-sectional width of the diameter expansion plate (45) is consistent with the cross-sectional width of the fixed half ring (41).

6. The production process of a ceramic pipe for mining according to claim 1, characterized in that: A second connecting block (451) is provided on the inner side of the diameter expansion plate (45), and a third connecting groove (452) is provided on the outer side; the shape and size of the first connecting block (441) are the same as those of the first connecting groove (411); the shape and size of the second connecting block (451) are the same as those of the second connecting groove (442) and the third connecting groove (452); and the size of the first connecting block (441) is larger than that of the second connecting block (451).

7. The production process of a ceramic pipe for mining according to claim 1, characterized in that: The sealing mechanism (5) comprises two end covers (51), each of the end covers (51) being provided with an annular groove (52), each of the annular grooves (52) being engaged with the pipe (3), the two end covers (51) being provided with a tensioning member, the tensioning member comprising two slide bars (54) and two tensioning rods (53), the ends of the two slide bars (54) being provided with a nut (56), the two slide bars (54) and the two tensioning rods (53) being arranged in a cross shape, the two tensioning rods (53) being arranged in a central symmetric manner, and the middle of the two end covers (51) being provided with a heat dissipation hole (55).

8. The production process of a ceramic pipe for mining according to claim 7, characterized in that: One end of each tension rod (53) is plugged with a rotating disc (531), and the other end is screwed to the nut (56); a first thread (532) is provided at a position close to the rotating disc (531) on each tension rod (53); a second thread (533) is provided at a position close to the nut (56) on each tension rod (53); the first thread (532) and the second thread (533) are in opposite directions.

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