Conveyance pipeline, concrete pumping equipment and method for manufacturing conveyance pipeline

Abstract

The present invention provides a conveying pipeline, concrete pumping equipment and a method for manufacturing a conveying pipeline, wherein the conveying pipeline includes a first pipeline and a second pipeline, wherein the first pipeline includes a ceramic pipeline and the second pipeline is a carbon fiber composite material pipeline and is sleeved on the outer wall of the first pipeline. The conveying pipeline provided by the present invention realizes a double-layer structure pipeline of an inner pipe and an outer pipe by sleeve-mounting the second pipeline made of carbon fiber composite material on the outside of the first pipeline including the ceramic pipeline. Compared with the conveying pipeline in the prior art, there is no need to stick ceramic sheets on the inner wall of the outer pipe as a wear-resistant layer, which improves the stability of the inner pipe structure and thus increases the service life of the conveying pipeline. At the same time, by adopting a carbon fiber composite material pipeline as the outer pipe, compared with the outer pipe made of low-carbon steel material, the strength of the outer pipe is guaranteed while reducing the overall weight of the conveying pipeline, thereby facilitating the transportation and installation of the conveying pipeline.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering equipment, and in particular to a delivery pipeline, a concrete pumping device and a method for manufacturing the delivery pipeline. Background Art

[0002] In the related art, the delivery pipeline of the concrete pumping equipment adopts a structure in which ceramic sheets are pasted on the inner wall of the low-carbon steel pipe body, which makes the overall structure of the delivery pipeline unstable and the ceramic sheets easily fall off, resulting in a short life of the pipeline. In addition, the low-carbon steel material is heavy and not easy to transport and install the pipeline. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related art.

[0004] To this end, a first object of the present invention is to provide a conveying pipeline.

[0005] A second object of the present invention is to provide a concrete pumping equipment.

[0006] A third object of the present invention is to provide a method for manufacturing a conveying pipe.

[0007] In view of this, a first aspect of the present invention provides a conveying pipeline, including a first pipeline, the first pipeline comprising a ceramic pipeline; a second pipeline, sleeved on the outer wall of the first pipeline, the second pipeline being a carbon fiber composite material pipeline.

[0008] The delivery pipeline provided by the present invention utilizes a first ceramic pipe as an inner pipe, and a second carbon fiber composite pipe sheathed around the outer wall of the first pipe as an outer pipe, forming a double-layer delivery pipeline. Specifically, the first pipe is made of wear-resistant ceramic pipe, which can better withstand the impact of materials on the pipe wall. The second pipe is formed by wrapping the carbon fiber composite material around the outer wall of the first pipe with a predetermined prestress, thereby forming a double-layer pipeline with the second pipe sheathed around the outer wall of the first pipe.

[0009] Specifically, by sheathing the carbon fiber composite material on the outer wall of the first pipe with preset prestress, the second pipe can tighten the first pipe, further improving the impact resistance of the inner wall of the first pipe, thereby further improving the service life of the conveying pipe.

[0010] The delivery pipeline provided by the present invention achieves a double-layer structure of inner and outer pipes by sheathing a second pipe made of carbon fiber composite material over a first pipe comprising a ceramic pipe. Compared to existing delivery pipelines, this eliminates the need for affixing ceramic sheets to the inner wall of the outer pipe as a wear-resistant layer, improving the stability of the inner pipe structure and thus extending the service life of the delivery pipeline. Furthermore, the use of a carbon fiber composite pipe as the outer pipe maintains the strength of the outer pipe while reducing the overall weight of the delivery pipeline, facilitating its transportation and installation, compared to existing low-carbon steel outer pipes.

[0011] Furthermore, the material of the second tube body may also be a glass fiber composite material or a carbon fiber and glass fiber mixed composite material.

[0012] In addition, the delivery pipeline in the above embodiment provided by the present invention may also have the following additional technical features:

[0013] In the above technical solution, further, the ceramic pipe of the first pipe is an alumina ceramic pipe.

[0014] In this technical solution, the first pipe is made of alumina ceramic, which improves its wear resistance, allowing it to better absorb the impact of concrete and other materials, thereby extending the service life of the pipe. Furthermore, the light weight of alumina ceramic facilitates transportation and installation of the pipe.

[0015] In any of the above technical solutions, further, the first pipeline is an integrated structure; or the first pipeline includes multiple sections of pipe bodies, and the multiple sections of pipe bodies are connected in sequence along the axial direction of the first pipeline.

[0016] In this technical solution, the first pipe serves as the inner pipe of the conveying pipe, and its structure can be an integrated pipe structure, or it can be a pipe body formed by connecting multiple sections of pipes end to end in sequence along the axial direction of the first pipe. Specifically, when the overall length of the conveying pipe is relatively short, the first pipe can adopt an integrated alumina ceramic pipe, which has a simple manufacturing process and is easy to install. When the overall length of the conveying pipe is relatively long, the first pipe can be formed by bonding multiple sections of pipe bodies end to end in sequence. Under the premise of ensuring the stability of the overall structure of the first pipe, the first pipe can withstand bending of a certain curvature to adapt to the working environment. Furthermore, in order to facilitate transportation and installation, multiple sections of the first pipe can be transported to the construction site for connection to improve work efficiency.

[0017] In any of the above technical solutions, further, the first pipe includes multiple pieces of arc-shaped pipe walls, and the multiple pieces of arc-shaped pipe walls are bonded in sequence along the circumference of the first pipe.

[0018] In this technical solution, the first pipe can include multiple circular-arc-shaped pipe walls, which are sequentially bonded together to form a cylindrical first pipe. By configuring the first pipe as a structure comprising multiple connected circular-arc-shaped pipe walls, the impact resistance of the inner wall of the first pipe can be further enhanced. Specifically, when a localized impact force is applied to the inner wall of the first pipe, the multiple circular-arc-shaped pipe walls can transfer the localized impact force to other pipe walls through the interconnected portions, thereby preventing the pipe wall from being ruptured due to the localized impact force, further extending the service life of the pipeline.

[0019] Specifically, the first pipe can include two semicircular walls, with the two side walls bonded together to form a cylindrical pipe. Furthermore, depending on the type of material being conveyed by the conveying pipe and the pressure that the inner wall of the first pipe needs to withstand, the first pipe can also be configured with four arc-shaped walls, or any other number of arc-shaped walls, to meet the operational requirements of the conveying pipe.

[0020] In any of the above technical solutions, the delivery pipeline further includes a flange that is sleeved onto the outer wall of the first pipeline. A protruding first step is provided on the outer circumferential surface of the end portion of the first pipeline, the inner wall of the flange abuts against the first step, and an annular groove is provided on the outer wall of the flange for engaging with an external device.

[0021] In this technical solution, a flange is sleeved onto the outer wall of the first pipe, and an annular groove can be provided on the outer wall of the flange, thereby enabling the delivery pipe to be connected to external equipment through the annular groove, further facilitating the installation of the delivery pipe. Furthermore, a protruding first step provided on the outer circumference of the first pipe allows the inner wall of the flange to abut against the first step, further improving the stability of the connection between the flange and the first pipe.

[0022] In any of the above technical solutions, further, the conveying pipeline also includes: a flange, and the first pipeline also includes: a wear-resistant ring, located at the end of the first pipeline, and the wear-resistant ring is connected to the ceramic pipeline; wherein, the flange is sleeved on the outer wall of the ceramic pipeline and the wear-resistant ring, and the second pipeline is wrapped around the ceramic pipeline and the flange; the outer peripheral surface of the wear-resistant ring is provided with a protruding second step, and the inner wall surface of the flange is abutted against the second step of the wear-resistant ring.

[0023] In this technical solution, the conveying pipeline can also be provided with a wear-resistant ring, which is located at the end of the first pipeline and bonded to the ceramic pipeline. Specifically, the second pipeline is wrapped around the ceramic pipeline and the wear-resistant ring, and the outer peripheral surface of the wear-resistant ring is provided with a second step, and the inner wall surface of the flange abuts against the second step of the wear-resistant ring. During construction, at the end of the conveying pipeline, the impact pressure of the material on the inner wall of the pipeline will change, making the end of the conveying pipeline more susceptible to damage due to the impact of the material. By providing a wear-resistant ring at the end of the conveying pipeline, the wear resistance of the end of the conveying pipeline can be further enhanced, thereby further improving the service life of the conveying pipeline.

[0024] According to a second aspect of the present invention, a concrete pumping device is further provided, comprising: a pumping system and a delivery pipeline as described in any one of the above technical solutions, wherein the delivery pipeline is connected to a discharge port of the pumping system.

[0025] The concrete pumping equipment provided by the present invention includes the delivery pipeline of any of the above technical solutions and thus has all the beneficial effects of the overflow detection device, which will not be described in detail here.

[0026] According to a third aspect of the present invention, a method for manufacturing a conveying pipe is also proposed, which is used to manufacture a conveying pipe as described in any of the above technical solutions. The manufacturing method includes: injecting ceramic powder into a pipe mold for static pressure molding; heat treating the molded ceramic powder to form a first pipe including a ceramic pipe; winding a carbon fiber composite material around the outer wall of the first pipe to form a second pipe; and heat treating the first pipe and the second pipe.

[0027] The manufacturing method of the conveying pipe provided by the present invention includes: first, injecting ceramic powder into a mold and statically pressing it to form the shape of a first pipe; then heat-treating the ceramic powder to fix the ceramic powder, and finally forming a first pipe including a ceramic pipe; further, winding a carbon fiber composite material around the outer wall of the first pipe to form a second pipe; finally, heat-treating the first pipe and the wound second pipe to achieve overall solidification to form the conveying pipe.

[0028] The manufacturing method of the conveying pipe provided by the present invention forms a first pipe including a ceramic pipe by performing steps such as molding and heat treatment on ceramic powder, and then sleeves a second pipe made of carbon fiber composite material on the outside of the first pipe, thereby realizing a double-layer structure pipe of an inner pipe and an outer pipe. The process is simple, the cost is low, and it is easy to implement. Furthermore, the conveying pipe manufactured by the manufacturing method provided by the present invention does not need to stick ceramic sheets on the inner wall of the outer pipe as a wear-resistant layer, compared with the conveying pipe in the prior art, thereby improving the stability of the inner pipe structure and thus improving the service life of the conveying pipe. At the same time, by adopting a carbon fiber composite material pipe as the outer pipe, compared with the low-carbon steel material outer pipe in the prior art, the strength of the outer pipe is ensured while reducing the overall weight of the conveying pipe, thereby facilitating the transportation and installation of the conveying pipe.

[0029] In any of the above technical solutions, further, after the formed ceramic powder is heat-treated to form a first pipe including a ceramic pipe, it also includes: bonding wear-resistant rings at both ends of the ceramic pipe to form the first pipe; and bonding the flange to the outer wall of the ceramic pipe and the wear-resistant ring.

[0030] In this technical solution, by installing a wear-resistant ring at the end of the ceramic pipe, the wear resistance of the pipe end can be further enhanced, thereby further increasing the service life of the pipe. Furthermore, a flange is formed on the outer wall of the connection between the ceramic pipe and the wear-resistant ring, and a clamping groove can be provided on the outer wall of the flange to achieve a clamping connection between the pipe and external equipment, further facilitating the installation of the pipe.

[0031] Furthermore, the step of heat-treating the formed ceramic powder to form a first pipe including a ceramic pipe specifically includes: placing the formed ceramic powder in a high-temperature furnace at 1000 degrees Celsius to 1600 degrees Celsius and calcining it for 3 to 10 hours to form a ceramic pipe; the step of heat-treating the first pipe and the second pipe specifically includes: heating the first pipe and the second pipe to 150 degrees Celsius to 200 degrees Celsius and maintaining the temperature for 1 to 3 hours.

[0032] In this technical solution, after the ceramic powder is statically pressed into shape, it is placed in a high-temperature furnace at 1000 to 1600 degrees Celsius and calcined for 3 to 10 hours to ensure the strength and toughness of the calcined and solidified ceramic pipe, thereby ensuring the impact resistance and wear resistance of the first pipe and improving the service life of the conveyor belt.

[0033] Furthermore, after the carbon fiber composite material is wrapped around the outer wall of the first pipe to form the second pipe, the first pipe and the wrapped second pipe can be heat treated. Specifically, the first and second pipes can be heated to 150 to 200 degrees Celsius and maintained at this temperature for 1 to 3 hours. This can achieve a better connection between the first and second pipes, enhance the overall stability of the conveying pipe, and further increase the service life of the conveying pipe.

[0034] In any of the above technical solutions, further, the step of winding the carbon fiber composite material around the outer wall of the first pipe to form the second pipe specifically includes: winding the carbon fiber composite material around the outer wall of the first pipe with a preset prestress to form the second pipe; the preset prestress is 50 MPa to 500 MPa.

[0035] In this technical solution, when the carbon fiber composite material is wrapped around the outer wall of the first pipe, a certain prestress can be applied to ensure the stability of the connection between the first pipe and the second pipe, while also helping the first pipe share the impact force borne by the inner wall, further improving the impact resistance of the first pipe and increasing the service life of the conveying pipe.

[0036] Specifically, the preset prestress can range from 50 MPa to 500 MPa. For alumina ceramic pipes, an external prestress of 50 MPa to 500 MPa does not affect the strength of the first pipe body, but also makes the second pipe more tightly connected to the first pipe, ensuring the overall stability of the delivery pipe.

[0037] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0039] Figure 1 A schematic structural diagram of a delivery pipeline provided in a first embodiment of the present invention;

[0040] Figure 2 A schematic structural diagram of a delivery pipeline provided in a second embodiment of the present invention;

[0041] Figure 3 A schematic structural diagram of a first pipeline in a delivery pipeline provided in a first embodiment of the present invention;

[0042] Figure 4 A schematic structural diagram of a first pipeline in a delivery pipeline provided in a second embodiment of the present invention;

[0043] Figure 5A schematic structural diagram of a first pipeline in a delivery pipeline provided in a third embodiment of the present invention;

[0044] Figure 6 Schematic diagram of a process for manufacturing a conveying pipeline according to a first embodiment of the present invention;

[0045] Figure 7 Schematic diagram of a process for manufacturing a delivery pipeline according to a second embodiment of the present invention;

[0046] Figure 8 Schematic diagram of a process for manufacturing a delivery pipeline according to a third embodiment of the present invention;

[0047] Figure 9 Schematic diagram of a process for manufacturing a conveying pipeline according to a fourth embodiment of the present invention;

[0048] Figure 10 Schematic diagram of the process of manufacturing a conveying pipeline according to the fifth embodiment of the present invention.

[0049] in, Figures 1 to 5 The corresponding relationship between the reference numerals and component names is as follows:

[0050] 100 conveying pipeline, 102 first pipeline, 104 second pipeline, 106 wear-resistant ring, 108 flange, 110 first step, 112 annular groove, 114 second step. DETAILED DESCRIPTION

[0051] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present invention and the features therein can be combined with each other without conflict.

[0052] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0053] Please refer to the attached Figures 1 to 10 The following describes a conveying pipeline 100 , a concrete pumping device, and a method for manufacturing the conveying pipeline according to some embodiments of the present invention.

[0054] Example 1

[0055] like Figure 1 As shown, the present invention provides a delivery pipeline 100, including a first pipeline 102 and a second pipeline 104, wherein the first pipeline 102 includes a ceramic pipeline, and the second pipeline 104 is a carbon fiber composite material pipeline and is sleeved on the outer wall of the first pipeline 102.

[0056] The delivery pipeline 100 provided by the present invention utilizes a first pipeline 102 as an inner tube, and a second pipeline 104 made of a carbon fiber composite material is sheathed around the outer wall of the first pipeline 102 as an outer tube, forming a double-layer structure of the delivery pipeline 100. Specifically, the first pipeline 102 can be made of a wear-resistant ceramic pipe, which can better withstand the impact of materials on the pipe wall. The second pipeline 104 is formed by wrapping the carbon fiber composite material around the outer wall of the first pipeline 102 with a predetermined prestress, thereby forming a double-layer structure of the pipeline, in which the second pipeline 104 is sheathed around the outer wall of the first pipeline 102.

[0057] Specifically, by sleeved the carbon fiber composite material on the outer wall of the first pipe 102 with preset prestress, the second pipe 104 can tighten the first pipe 102, further improving the impact resistance of the inner wall of the first pipe 102, thereby further improving the service life of the conveying pipe 100.

[0058] The delivery pipeline 100 provided by the present invention utilizes a second pipe 104 made of carbon fiber composite material sheathed over a first pipe 102 comprising a ceramic pipe, thereby achieving a double-layered structure of inner and outer pipes. Compared to conventional delivery pipelines 100, this eliminates the need for affixing ceramic sheets to the inner wall of the outer pipe as a wear-resistant layer, improving the stability of the inner pipe structure and thereby extending the service life of the delivery pipeline 100. Furthermore, the use of a carbon fiber composite pipe as the outer pipe maintains the strength of the outer pipe while reducing the overall weight of the delivery pipeline 100, compared to conventional low-carbon steel outer pipes, facilitating transportation and installation of the delivery pipeline 100.

[0059] Furthermore, the material of the second tube body may also be a glass fiber composite material or a carbon fiber and glass fiber mixed composite material.

[0060] Furthermore, the ceramic pipe of the first pipe 102 is an alumina ceramic pipe.

[0061] Specifically, by using alumina ceramic to manufacture the first pipe 102, the wear resistance of the first pipe 102 is improved, which can better withstand the impact of concrete and other materials, thereby increasing the service life of the conveying pipe 100. At the same time, the alumina ceramic material is light in weight, which facilitates the transportation and installation of the conveying pipe 100.

[0062] Furthermore, if Figure 3 As shown, the first pipe 102 is an integrated structure; or the first pipe 102 includes multiple sections of pipe bodies, and the multiple sections of pipe bodies are sequentially connected along the axial direction of the first pipe.

[0063] Specifically, the first pipe 102 serves as the inner pipe of the delivery pipe 100, and its structure can be an integrated pipe structure, or it can be a pipe body formed by connecting multiple sections of pipes end to end in sequence along the axial direction of the first pipe. Specifically, when the overall length of the delivery pipe 100 is relatively short, the first pipe 102 can adopt an integrated alumina ceramic pipe, which has a simple manufacturing process and is easy to install. When the overall length of the delivery pipe 100 is relatively long, the first pipe 102 can be formed by bonding multiple sections of pipe bodies end to end in sequence. Under the premise of ensuring the stability of the overall structure of the first pipe 102, the first pipe 102 can withstand bending of a certain curvature to adapt to the working environment. Furthermore, in order to facilitate transportation and installation, multiple sections of the first pipe 102 can be transported to the construction site for connection to improve work efficiency.

[0064] Furthermore, if Figure 4 and Figure 5 As shown, the first pipe 102 includes multiple pieces of arc-shaped pipe walls, which are bonded in sequence along the circumference of the first pipe 102 .

[0065] Specifically, the first pipe 102 may include multiple pieces of arc-shaped pipe walls, which are sequentially bonded together to form the cylindrical first pipe 102. By configuring the first pipe 102 as a structure in which multiple pieces of arc-shaped pipe walls are connected, the impact resistance of the inner wall of the first pipe 102 can be further enhanced. Specifically, when a localized inner wall of the first pipe 102 is subjected to a large impact force, the multiple pieces of arc-shaped pipe walls can transmit the localized impact to other pipe walls through the interconnected portions, thereby preventing the pipe wall from being ruptured due to the large impact force locally, thereby further improving the service life of the delivery pipe 100.

[0066] Specifically, the first pipe 102 can include two semicircular pipe walls, the two side walls of which are bonded together to form a cylindrical pipe. Furthermore, depending on the type of material conveyed by the conveying pipe 100 and the pressure that the inner wall of the first pipe 102 needs to withstand, the first pipe 102 can also be configured with four arc-shaped pipe walls, or any other number of arc-shaped pipe walls, to meet the operational requirements of the conveying pipe 100.

[0067] Example 2

[0068] Based on the above embodiments, Figure 2As shown, the delivery pipeline 100 provided by the present invention may also include a flange 108, which is sleeved onto the outer walls of the first pipeline 102 and the wear-resistant ring 106. The outer circumferential surface of the end of the first pipeline 102 is provided with a protruding first step 110, and the inner wall surface of the flange 108 abuts against the step 110. The outer wall surface of the flange 108 is provided with an annular groove 112 for engaging with external equipment. Furthermore, the outer wall of the flange 108 is circumferentially provided with a groove for engaging with external equipment; the inner wall of the flange 108 is circumferentially provided with a groove; and the outer wall of the wear-resistant ring 106 is circumferentially provided with a protrusion that matches the groove.

[0069] In this embodiment, a flange 108 is sleeved on the outer wall of the first pipe 102, and an annular groove 112 can be provided on the outer wall of the flange 108, thereby enabling the delivery pipe 100 to be connected to external equipment through the annular groove 112, further facilitating the installation of the delivery pipe 100. In addition, a protruding step 110 provided on the outer circumference of the first pipe 102 allows the inner wall surface of the flange 108 to abut against the step 110, further improving the stability of the connection between the flange 108 and the first pipe 102.

[0070] Furthermore, the conveying pipeline 100 may also include a flange 108, and the first pipeline 102 may also include: a wear-resistant ring 106, located at the end of the first pipeline 102, and the wear-resistant ring 106 is connected to the ceramic pipeline; wherein, the flange 108 is sleeved on the outer wall of the ceramic pipeline and the wear-resistant ring 106, and the second pipeline 104 is wrapped around the ceramic pipeline and the flange 108; the outer peripheral surface of the wear-resistant ring 106 is provided with a protruding second step 114, and the inner wall surface of the flange 108 is abutted against the second step 114 of the wear-resistant ring 106.

[0071] Specifically, the conveying pipeline 100 also includes a flange 108 and a wear-resistant ring 106. The wear-resistant ring 106 is located at the end of the first pipeline 102 and is bonded to the ceramic pipeline. Specifically, the second pipeline 104 is wrapped around the ceramic pipeline and the flange 108. The outer peripheral surface of the wear-resistant ring 106 is provided with a second step 114. The inner wall surface of the flange 108 abuts against the second step 114 of the wear-resistant ring 106. During construction, at the end of the conveying pipeline 100, the impact pressure of the material on the inner wall of the pipeline will change, thereby making the end of the conveying pipeline 100 more susceptible to damage due to the impact of the material. By providing the wear-resistant ring 106 at the end of the conveying pipeline 100, the wear resistance of the end of the conveying pipeline 100 can be further enhanced, thereby further improving the service life of the conveying pipeline 100.

[0072] Specifically, the wear-resistant ring 106 can be made of a composite ceramic material to further improve the wear resistance.

[0073] Example 3

[0074] One embodiment of the present invention provides a concrete pumping device, comprising a pumping system and a delivery pipeline 100 as described in any one of the above embodiments, wherein the delivery pipeline 100 is connected to a discharge port of the pumping system.

[0075] The concrete pumping equipment provided by the present invention includes the delivery pipeline 100 of any of the above embodiments, and thus has all the beneficial effects of the overflow detection device, which will not be described in detail here.

[0076] Example 4

[0077] like Figure 6 As shown, the present invention provides a method for manufacturing a conveying pipeline, which is used to manufacture the conveying pipeline 100 as any one of the above embodiments. The manufacturing method includes:

[0078] S502: injecting ceramic powder into the pipe mold and statically pressing the pipe mold;

[0079] S504: heat-treating the formed ceramic powder to form a first pipe including a ceramic pipe;

[0080] S506: Winding the carbon fiber composite material around the outer wall of the first pipe to form a second pipe;

[0081] S508: Perform heat treatment on the first pipe and the second pipe.

[0082] The manufacturing method of the conveying pipe provided by the present invention includes: first, injecting ceramic powder into a mold and statically pressing it to form the shape of a first pipe; then heat-treating the ceramic powder to fix the ceramic powder, and finally forming a first pipe including a ceramic pipe; further, winding a carbon fiber composite material around the outer wall of the first pipe to form a second pipe; finally, heat-treating the first pipe and the wound second pipe to achieve overall solidification to form the conveying pipe.

[0083] The manufacturing method of the conveying pipe provided by the present invention forms a first pipe including a ceramic pipe by performing steps such as molding and heat treatment on ceramic powder, and then sleeves a second pipe made of carbon fiber composite material on the outside of the first pipe, thereby realizing a double-layer structure pipe of an inner pipe and an outer pipe. The process is simple, the cost is low, and it is easy to implement. Furthermore, the conveying pipe manufactured by the manufacturing method provided by the present invention does not need to stick ceramic sheets on the inner wall of the outer pipe as a wear-resistant layer, compared with the conveying pipe in the prior art, thereby improving the stability of the inner pipe structure and thus improving the service life of the conveying pipe. At the same time, by adopting a carbon fiber composite material pipe as the outer pipe, compared with the low-carbon steel material outer pipe in the prior art, the strength of the outer pipe is ensured while reducing the overall weight of the conveying pipe, thereby facilitating the transportation and installation of the conveying pipe.

[0084] Example 5

[0085] like Figure 7 As shown, a method for manufacturing a conveying pipeline according to an embodiment of the present invention includes:

[0086] S602: injecting ceramic powder into the pipe mold and statically pressing the pipe mold;

[0087] S604: heat-treating the formed ceramic powder to form a first pipe including a ceramic pipe;

[0088] S606: Bonding wear-resistant rings to both ends of the ceramic pipe to form a first pipe;

[0089] S608: Bond the flange to the outer wall of the ceramic pipe and wear-resistant ring:

[0090] S610: Winding the carbon fiber composite material around the outer wall of the first pipe to form a second pipe;

[0091] S612: Perform heat treatment on the first pipe and the second pipe.

[0092] In this embodiment, by providing a wear-resistant ring at the end of the ceramic pipe, the wear resistance of the end of the delivery pipe can be further enhanced, thereby further increasing the service life of the delivery pipe. Furthermore, a flange is formed on the outer wall of the connection between the ceramic pipe and the wear-resistant ring, and a clamping groove can be provided on the outer wall of the flange to achieve a clamping connection between the delivery pipe and external equipment through the clamping groove, further facilitating the installation of the delivery pipe.

[0093] Example 6

[0094] like Figure 8 As shown, a method for manufacturing a conveying pipeline according to an embodiment of the present invention includes:

[0095] S702: injecting ceramic powder into the pipe mold and statically pressing the pipe mold;

[0096] S704: placing the formed ceramic powder into a high-temperature furnace at 1000 to 1600 degrees Celsius and calcining it for 3 to 10 hours to form a first pipe including a ceramic pipe;

[0097] S706: Bonding wear-resistant rings to both ends of the ceramic pipe to form a first pipe;

[0098] S708: Bond the flange to the outer wall of the ceramic pipe and wear-resistant ring:

[0099] S710: Winding the carbon fiber composite material around the outer wall of the first pipe to form a second pipe;

[0100] S712: Heat the first pipe and the second pipe to 150 degrees Celsius to 200 degrees Celsius, and maintain the temperature for 1 to 3 hours.

[0101] In this embodiment, after the ceramic powder is statically pressed, it is placed in a high-temperature furnace at 1000 degrees Celsius to 1600 degrees Celsius and calcined for 3 to 10 hours to ensure the strength and toughness of the calcined and solidified ceramic inner tube, thereby ensuring the impact resistance and wear resistance of the first pipeline and improving the service life of the conveyor belt.

[0102] Furthermore, after the carbon fiber composite material is wrapped around the outer wall of the first pipe to form the second pipe, the first pipe and the wrapped second pipe can be heat treated. Specifically, the first and second pipes can be heated to 150 to 200 degrees Celsius and maintained at this temperature for 1 to 3 hours. This can achieve a better connection between the first and second pipes, enhance the overall stability of the conveying pipe, and further increase the service life of the conveying pipe.

[0103] Example 7

[0104] like Figure 9 As shown, a method for manufacturing a conveying pipeline according to an embodiment of the present invention includes:

[0105] S802: injecting ceramic powder into the pipe mold and statically pressing the pipe mold;

[0106] S804: placing the formed ceramic powder into a high-temperature furnace at 1000 to 1600 degrees Celsius and calcining it for 3 to 10 hours to form a first pipe including a ceramic pipe;

[0107] S806: Bonding wear-resistant rings to both ends of the ceramic pipe to form a first pipe;

[0108] S808: Bond the flange to the outer wall of the ceramic pipe and wear-resistant ring:

[0109] S810: Winding the carbon fiber composite material around the outer wall of the first pipe with a preset prestress to form a second pipe;

[0110] S812: Heat the first pipe and the second pipe to 150 degrees Celsius to 200 degrees Celsius, and maintain the temperature for 1 to 3 hours.

[0111] In this embodiment, when the carbon fiber composite material is wrapped around the outer wall of the first pipe, a certain prestress can be applied to ensure the stability of the connection between the first pipe and the second pipe, while also helping the first pipe to share the impact force borne by the inner wall, further improving the impact resistance of the first pipe and increasing the service life of the conveying pipe.

[0112] Specifically, the preset prestress can range from 50 MPa to 500 MPa. For alumina ceramic pipes, an external prestress of 50 MPa to 500 MPa does not affect the strength of the first pipe body, but also makes the second pipe more tightly connected to the first pipe, ensuring the overall stability of the delivery pipe. Specific embodiments

[0114] like Figures 1 to 5 As shown, the delivery pipeline 100 provided by the present invention includes a first pipeline 102, a second pipeline 104, a wear-resistant ring 106, and a flange 108. The first pipeline 102 comprises a ceramic pipeline, which is made of a ceramic pipe body, either integrally or by splicing, for wear resistance. The second pipeline 104 is made of a carbon fiber composite material with a prestress of 50 to 500 MPa, wrapped around the outer wall of the first pipeline 102, to tighten and support the first pipeline 102. The wear-resistant ring 106 is made of zirconia-toughened ceramic or high-chromium alloy to improve the wear life of the pipeline inlet and outlet.

[0115] Furthermore, the structure of the first pipe 102 is determined by the prestress of the outer layer of carbon fiber. It can be an integrally formed ceramic pipe body, or surrounded by at least three semicircular pipe walls bonded axially, or surrounded by at least three quarter-circular pipe walls bonded axially.

[0116] Furthermore, a slot is provided on the outer wall of the flange 108 , so that the delivery pipe 100 can be connected to an external device through the slot, further facilitating the installation of the delivery pipe 100 .

[0117] The delivery pipeline 100 provided by the present invention utilizes a second pipe 104 made of carbon fiber composite material sheathed over a first pipe 102 comprising a ceramic pipe, thereby achieving a double-layered structure of inner and outer pipes. Compared to conventional delivery pipelines 100, this eliminates the need for affixing ceramic sheets to the inner wall of the outer pipe as a wear-resistant layer, improving the stability of the inner pipe structure and thereby extending the service life of the delivery pipeline 100. Furthermore, the use of a carbon fiber composite pipe as the outer pipe maintains the strength of the outer pipe while reducing the overall weight of the delivery pipeline 100, compared to conventional low-carbon steel outer pipes, facilitating transportation and installation of the delivery pipeline 100.

[0118] Furthermore, if Figure 10 As shown, in a specific embodiment, the manufacturing method of the conveying pipeline provided by the present invention specifically includes:

[0119] S902: Making a pipeline mold according to different design schemes of the first pipeline;

[0120] S904: injecting alumina ceramic powder into the mold and statically pressing the mold;

[0121] S906: placing the formed ceramic powder into a high-temperature furnace at 1000 to 1600 degrees Celsius and calcining for 3 to 10 hours to form a first pipe including a ceramic pipe;

[0122] S908: Taking the required number of tube segments as needed and bonding the tube segments in sequence to form a first tube;

[0123] S910: Bond the wear-resistant ring to the ceramic pipe, and bond the flange to the outer wall of the ceramic pipe and the wear-resistant ring;

[0124] S912: The first pipe is placed on the pipe core mold, and starting from the flange portion, the carbon fiber composite material is wrapped around the outer wall of the first pipe with a preset prestress to form a second pipe;

[0125] S914: Heat the first pipe and the second pipe to 150 degrees Celsius to 200 degrees Celsius, and keep the temperature for 1 to 3 hours.

[0126] The manufacturing method of the conveying pipeline provided by the present invention forms a first pipeline by performing steps such as molding and heat treatment on ceramic powder, and then sleeves a second pipeline made of carbon fiber composite material on the outside of the first pipeline, thereby realizing a double-layer structure pipeline of an inner pipe and an outer pipe. The process is simple, the cost is low, and it is easy to implement. Furthermore, the conveying pipeline manufactured by the manufacturing method provided by the present invention does not need to stick ceramic sheets on the inner wall of the outer pipe as a wear-resistant layer, compared with the conveying pipeline in the prior art, thereby improving the stability of the inner pipe structure and thus improving the service life of the conveying pipeline. At the same time, by adopting a carbon fiber composite material pipe as the outer pipe, compared with the low-carbon steel material outer pipe in the prior art, the strength of the outer pipe is guaranteed while reducing the overall weight of the conveying pipeline, thereby facilitating the transportation and installation of the conveying pipeline.

[0127] In the present invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0128] In the description of the present invention, it should be understood that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0129] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0130] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A conveying pipeline, characterized in that: include: a first pipe, the first pipe comprising a ceramic pipe; A second pipe is wound around the outer wall of the first pipe with a preset prestress, the second pipe being a carbon fiber composite pipe; the preset prestress is 50 MPa to 500 MPa; flange; a wear-resistant ring, located at the end of the first pipe, the wear-resistant ring being connected to the ceramic pipe; The flange is sleeved on the outer wall of the ceramic pipe and the wear-resistant ring, and the second pipe is wrapped around the ceramic pipe and the flange; the outer peripheral surface of the wear-resistant ring is provided with a protruding second step, the inner wall surface of the flange is abutted against the second step of the wear-resistant ring, and the outer wall surface of the flange is provided with an annular groove.

2. The delivery pipeline according to claim 1, characterized in that: The ceramic pipe is an alumina ceramic pipe or a zirconia ceramic pipe.

3. The delivery pipeline according to claim 1, characterized in that: The first pipe is an integrated structure; or The first pipeline includes multiple sections of pipe bodies, and the multiple sections of pipe bodies are connected in sequence along the axial direction of the first pipeline.

4. The delivery pipeline according to claim 1, characterized in that: Also includes: The first pipe includes a plurality of circular arc-shaped pipe walls, and the plurality of circular arc-shaped pipe walls are bonded in sequence along the circumference of the first pipe.

5. A concrete pumping equipment, comprising a pumping system, characterized in that: Also includes: The delivery pipeline according to any one of claims 1 to 4, wherein the delivery pipeline is connected to the discharge port of the pumping system.

6. A method for manufacturing a conveying pipeline, for manufacturing the conveying pipeline according to any one of claims 1 to 4, characterized in that: include: Inject ceramic powder into the pipe mold and perform static pressing; heat-treating the formed ceramic powder to form a first pipe including a ceramic pipe; Winding the carbon fiber composite material around the outer wall of the first pipe to form the second pipe; performing heat treatment on the first pipe and the second pipe; The step of winding the carbon fiber composite material around the outer wall of the first pipe to form the second pipe specifically includes: Winding the carbon fiber composite material around the outer wall of the first pipe with a preset prestress to form the second pipe; The preset prestress is 50 MPa to 500 MPa.

7. The manufacturing method according to claim 6, characterized in that After heat treating the formed ceramic powder to form the first pipe including the ceramic pipe, the method further includes: Adhere wear-resistant rings to both ends of the ceramic pipe to form the first pipe; bonding the flange to the outer walls of the ceramic pipe and the wear-resistant ring; The step of heat-treating the formed ceramic powder to form a first pipe including a ceramic pipe includes: placing the formed ceramic powder into a high-temperature furnace at 1000 to 1600 degrees Celsius and calcining it for 3 to 10 hours to form the first pipe including the ceramic pipe; The step of heat treating the first pipe and the second pipe specifically includes: The first pipe and the second pipe are heated to 150 degrees Celsius to 200 degrees Celsius and kept at the temperature for 1 to 3 hours.

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