Ceramic fiber filter tube suction molding apparatus and molding method

Abstract

This invention belongs to the field of fiber tube forming technology, and discloses a ceramic fiber filter tube vacuum forming device and forming method. The ceramic fiber filter tube vacuum forming device includes a forming component, a tube removal component, and a material distribution component. The forming component includes a support drive component, a roller, a vacuum filtration component, and a forming roller. Two rollers are spaced apart, and the support drive component can drive the rollers to rotate. The vacuum filtration component is connected to the forming roller, and the forming roller has several filtration holes. The forming roller is located above the two rollers, and the two rollers and the forming roller are triangularly distributed. The diameter of the forming roller is adjustable. The tube removal component includes a tube removal drive component, which is connected to the forming roller and can drive the forming roller to move along its axial direction. The material distribution component is configured to rotate the forming roller and distribute slurry onto the forming roller. The forming method uses the above-mentioned ceramic fiber filter tube vacuum forming device to improve the surface quality and strength of the filter tube, while also improving production efficiency.

Description

Technical Field

[0001] This invention relates to the field of fiber tube forming technology, and in particular to a ceramic fiber filter tube vacuum forming device and forming method. Background Technology

[0002] Ceramic fiber filter tubes (hereinafter referred to as filter tubes) are the core equipment for integrated high-temperature flue gas treatment. Currently, their forming methods are mainly divided into two types: internal mold vacuum filtration and external mold vacuum filtration. External mold vacuum filtration: The mold is set around the central shaft. The prepared slurry is injected into the mold through the central shaft. The suction force formed by the vacuum causes the fibers to be adsorbed onto the inner wall of the mold and formed. After forming, the central shaft is removed, the mold is opened and the filter tube is taken out. Alternatively, the mold and the filter tube are placed together in an oven for baking. After drying, the mold is opened and the filter tube is taken out. Inner mold vacuum filtration: The mold connected to the vacuum pump pipeline is placed in the prepared slurry tank. After the vacuum pump is started, the fiber material in the slurry tank is adsorbed layer by layer to the outer surface of the mold, forming an interwoven porous filter tube. After molding, the filter tube and the mold are placed in an oven for baking. After drying, the mold is pulled out manually or mechanically. Compared to external mold vacuum filtration, internal mold vacuum filtration is relatively simple and has lower requirements for materials and molding processes. However, the finished products produced by internal mold vacuum filtration have rough outer surfaces and uneven wall thicknesses, requiring secondary machining. At the same time, its molding process relies entirely on vacuum force. As the filter tube thickness gradually increases, the vacuum force in the tube wall direction gradually decreases, leading to a decrease in the degree of interweaving between fibers and low strength of the finished product. In addition, after molding, the filter tube and the mold are placed in an oven for baking, which requires mold disassembly and the drying process also requires the use of the mold, resulting in low production efficiency. Summary of the Invention

[0003] The purpose of this invention is to provide a ceramic fiber filter tube vacuum forming device and forming method, which improves the surface quality and strength of the filter tube, while also increasing production efficiency.

[0004] To achieve this objective, the present invention adopts the following technical solution: One aspect provides a ceramic fiber filter tube vacuum forming device, which includes: A forming assembly includes a support drive component, idler rollers, a vacuum filtration component, and a forming roller. Two idler rollers are spaced apart and connected to the output end of the support drive component, which can drive the idler rollers to rotate. The vacuum filtration component is connected to the forming roller, which has a plurality of filtration holes. The forming roller is located above the two idler rollers, and the two idler rollers and the forming roller are arranged in a triangle. The diameter of the forming roller is adjustable. A tube removal assembly, the tube removal assembly including a tube removal drive member connected to the forming roller, the tube removal drive member being capable of driving the forming roller to move along its axial direction; A fabric assembly configured to rotate the forming roller and apply slurry onto the forming roller.

[0005] In some embodiments, the tube removal assembly includes a base and a support, the base having a track extending along the axial direction of the forming roller, the tube removal drive being capable of driving the support to move on the track, and the forming roller being rotatably connected to the support.

[0006] In some embodiments, the forming assembly further includes a rotary joint connected to one axial end of the forming roller, and the vacuum filter element is connected to the forming roller through the rotary joint; And / or, the molding assembly further includes a bracket, the supporting drive is disposed on the bracket, the output end of the supporting drive is provided with a drive wheel, the two idler rollers are rotatably disposed on the bracket, and one axial end of the two idler rollers is provided with a driven wheel, the drive wheel and the driven wheel are connected by a flexible member for transmission.

[0007] In some embodiments, the forming assembly further includes a pressing drive and two pressure rollers. The two pressure rollers are disposed at the output end of the pressing drive and above the forming roller, and the two pressure rollers and the forming roller are arranged in a triangular distribution. The pressing drive can drive the two pressure rollers to rotate. The distance between the pressure rollers and the forming roller is the same as the distance between the support roller and the forming roller.

[0008] In some embodiments, the forming assembly further includes an avoidance drive and a pressing frame, with the two pressure rollers rotatably mounted on the pressing frame. The avoidance drive includes a first lifting drive and a first translation drive. The pressing frame is located at the output end of the first lifting drive, which drives the pressing frame to move up and down. The first lifting drive is located at the output end of the first translation drive, which drives the first lifting drive to move along the axial direction of the pressure rollers or horizontally along an axial direction perpendicular to the pressure rollers.

[0009] In some embodiments, the ceramic fiber filter tube vacuum forming device further includes a conveying component, the conveying component includes a support frame, the support frame is provided with a conveying drive and a vacuum adsorption box, the vacuum adsorption box is provided at the output end of the conveying drive, the vacuum adsorption box is provided with an arc-shaped groove, the concave surface of the arc-shaped groove is provided with a plurality of vacuum adsorption holes, and the conveying drive is at least capable of driving the vacuum adsorption box to rise and fall.

[0010] In some embodiments, the fabric assembly includes a mixing tank and a fabric trough, the fabric trough extending axially along the forming roller, a discharge guide plate being provided at the edge of the trough opening on the side of the fabric trough facing the forming roller, the discharge guide plate being inclined downward from one end near the fabric trough to the end away from the fabric trough, a plurality of stirring rollers being rotatably arranged inside the fabric trough, the stirring rollers being provided with stirring blades, and the mixing tank being able to inject the slurry into the fabric trough.

[0011] In some embodiments, the fabric trough includes opposing first and second sidewalls, the discharge guide plate is connected to the top of the second sidewall, and a plurality of baffles are provided in the fabric trough. The plurality of baffles are spaced apart along the direction from the first sidewall to the second sidewall to divide the fabric trough into a plurality of sub-troughs. The stirring roller is distributed in each sub-trough. The tops of the first sidewall, the baffles and the second sidewall decrease sequentially from the first sidewall to the second sidewall.

[0012] In some embodiments, the fabric assembly further includes a fabric drive and a fabric roller. The fabric drive is disposed at the output end of the tube removal drive and the output end of the fabric drive is connected to the fabric roller. The fabric drive can drive the fabric roller to rotate. The fabric roller abuts against the forming roller to drive the fabric roller to rotate.

[0013] On the other hand, a molding method is provided, which uses the ceramic fiber filter tube vacuum filtration molding device as described above. The molding method includes the following steps: Increase the diameter of the forming roller and lay a wound filter cloth on the forming roller; The fabric assembly drives the forming roller to rotate and applies slurry onto the filter cloth; The rollers compress the slurry to form a filter tube; Stop the application of the slurry; Reduce the diameter of the forming roller; The tube-removal drive unit drives the forming roller to move along its axial direction, and the forming roller disengages from the filter tube; Dry the filter tube.

[0014] The beneficial effects of this invention are: The fabric assembly drives the forming roller to rotate while simultaneously spreading slurry onto it. A vacuum filtration component removes water from the slurry through filtration holes on the forming roller. Once the fabric reaches a certain thickness, the slurry on the forming roller contacts the support roller. As the slurry continues to spread, and the support roller compresses the slurry on the forming roller during rotation, uniform axial and radial slurry distribution is achieved, increasing density and enabling the production of ultra-high strength filter tubes that meet standard strength requirements without secondary processing. Furthermore, the compression from the support roller significantly improves the roundness and straightness of the filter tubes, enhancing molding quality. After molding, the forming roller's diameter is reduced, and the tube removal drive component moves the forming roller axially, detaching it from the filter tube. The remaining filter tube on the support roller can then be dried without disassembling the forming roller, and the drying process does not require occupying the forming roller, thus improving production efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the ceramic fiber filter tube vacuum forming device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the mixing tank and the material distribution trough according to an embodiment of the present invention; Figure 3 This is a partial schematic diagram of the detachment assembly described in an embodiment of the present invention; Figure 4 This is a side sectional view of the fabric trough described in an embodiment of the present invention; Figure 5 This is a side view of the conveying assembly described in an embodiment of the present invention; Figure 6 This is a schematic diagram of the molding component with pressure rollers as described in an embodiment of the present invention; Figure 7 This is a flowchart of the molding method described in an embodiment of the present invention.

[0016] In the picture: 1. Forming assembly; 11. Support drive component; 12. Idler roller; 13. Forming roller; 14. Rotary joint; 15. Bracket; 16. Drive wheel; 17. Driven wheel; 18. Flexible component; 19. Pressure roller; 110. Pressing frame; 120. Pressing drive component; 2. Detachment assembly; 21. Detachment drive unit; 22. Base; 23. Support base; 24. Track; 3. Fabric assembly; 31. Batching hopper; 32. Fabric trough; 321. First side wall; 322. Second side wall; 33. Discharge guide plate; 34. Mixing roller; 35. Mixing blade; 36. Baffle; 37. Fabric drive component; 38. Fabric roller; 39. Fabric tube; 310. Mixing drive component; 4. Handling components; 41. Support frame; 42. Handling drive components; 43. Vacuum suction box; 431. Arc groove; 5. Drying rack. Detailed Implementation

[0017] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0018] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection or a detachable connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0019] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0020] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] This invention provides a ceramic fiber filter tube vacuum filtration and forming device, which includes a forming component 1, a tube removal component 2, and a material distribution component 3. The forming component 1 includes a support drive component 11, a roller 12, a vacuum filtration component, and a forming roller 13. Two rollers 12 are spaced apart and connected to the output end of the support drive component 11, which can drive the rollers 12 to rotate. The vacuum filtration component is connected to the forming roller 13, which has a plurality of filtration holes. The forming roller 13 is located above the two rollers 12, and the two rollers 12 and the forming roller 13 are triangularly distributed. The diameter of the forming roller 13 is adjustable. The tube removal component 2 includes a tube removal drive component 21, which is connected to the forming roller 13 and can drive the forming roller 13 to move along its axial direction. The material distribution component 3 is configured to rotate the forming roller 13 and distribute slurry onto the forming roller 13.

[0022] The fabric assembly 3 drives the forming roller 13 to rotate while simultaneously distributing slurry onto it. The vacuum filter element removes water from the slurry through the filter holes on the forming roller 13 via a vacuum operation. Once the fabric reaches a certain thickness, the slurry on the forming roller 13 comes into contact with the support roller 12. As the slurry continues to be distributed and the support roller 12 squeezes the slurry on the forming roller 13 during rotation, uniform axial and radial slurry distribution is achieved, increasing density and enabling the production of ultra-high strength filter tubes. Standard strength requirements can be met without secondary processing. Furthermore, the squeezing action of the support roller 12 below significantly improves the roundness and straightness of the filter tubes, enhancing molding quality. After molding, the forming roller 13 reduces its diameter and can be driven axially by the tube removal drive element 21 to detach from the filter tube, completing the tube removal operation. The remaining filter tube on the support roller 12 can then be dried without disassembling the forming roller 13, and the drying process does not require the use of the forming roller 13, thus improving production efficiency.

[0023] It should be noted that the forming roller 13 is an expansion roller, which allows the roller diameter of the forming roller 13 to be adjusted. The expansion roller is a conventional structure in the prior art, and its specific structure will not be described in detail. In addition, the distance between the forming roller 13 and the support roller 12 needs to vary depending on the forming size of the filter tube, and there is no specific limitation.

[0024] like Figure 6As shown, in some embodiments, the molding assembly 1 further includes a bracket 15, a support drive 11 is disposed on the bracket 15, and a drive wheel 16 is disposed at the output end of the support drive 11. The support drive 11 may be, but is not limited to, a motor. Two idler rollers 12 are rotatably disposed on the bracket 15 through bearings. One end of the idler roller 12 is disposed with a driven wheel 17. The drive wheel 16 and the driven wheel 17 are connected through a flexible member 18, so that the support drive 11 can drive the idler rollers 12 to rotate through the flexible member 18. The flexible member 18 may be, but is not limited to, a belt or a chain.

[0025] like Figure 3 As shown, in some embodiments, the forming assembly 1 further includes a rotary joint 14, which is connected to one axial end of the forming roller 13. The vacuum filtration component is connected to the forming roller 13 through the rotary joint 14, so that during the rotation of the forming roller 13, the vacuum filtration component and other auxiliary components do not need to rotate, thus avoiding and reducing interference during the process. It should be noted that the rotary joint 14 is a commonly used component in the prior art, and the vacuum filtration component is a combination of a vacuum pump, a vacuum tank, a vacuum buffer tank, and a matching electrical control system, which are also commonly used components and will not be described in detail here; the vacuum filtration component is connected to the rotary joint 14 through a pipe.

[0026] To ensure the stability of the forming roller 13, in some embodiments, a support seat can be provided on the side of the bracket 15 away from the rotary joint 14. The support seat is provided with a support groove, which is open at least on the side facing the forming roller 13. A pin is connected to the end of the forming roller 13 away from the rotary joint 14. The pin is inserted into the support groove and can be pulled out of the support groove. This allows both ends to be supported during filter tube forming. When the forming roller 13 is detached, the pin can also be detached from the support groove, which facilitates the tube removal operation and reduces the pressure on the rotary joint 14 and the forming roller 13, thus extending their service life.

[0027] Continue as Figure 3 As shown, in some embodiments, the tube removal assembly 2 further includes a base 22 and a support 23. The base 22 is provided with a track 24 extending along the axial direction of the forming roller 13. The tube removal drive 21 can drive the support 23 to move on the track 24. A rotary joint 14 is provided on the support 23, allowing the forming roller 13 to be rotatably connected to the support 23. When the base 22 moves along the track 24, the forming roller 13 can move above the support roller 12 for filter tube forming. After forming, the base 22 moves in the opposite direction, causing the forming roller 13 to detach from the filter tube, leaving the filter tube on the support roller 12. Exemplarily, the tube removal drive 21 is a motor, which is provided on the support 23. The motor's output end is provided with a gear, and the base 22 is provided with a rack extending along the track 24. The gear meshes with the rack, thereby driving the support 23 to move on the track 24.

[0028] like Figure 1 and Figure 4 As shown, in some embodiments, the ceramic fiber filter tube vacuum forming device further includes a transport component 4 for transporting the filter tube. The transport component 4 includes a support frame 41, on which a transport drive component 42 and a vacuum adsorption box 43 are mounted. The vacuum adsorption box 43 is located at the output end of the transport drive component 42. The vacuum adsorption box 43 has an arc-shaped groove 431, which matches the shape of the filter tube. The vacuum adsorption box 43 may contain, but is not limited to, a vacuum pump, a vacuum tank, and a vacuum buffer tank, etc., for vacuum adsorption. The concave surface of the arc-shaped groove 431 has several vacuum adsorption holes, which can adsorb the filter tube onto the vacuum adsorption box 43. The transport drive component 42 can at least drive the vacuum adsorption box 43 to rise and fall, thereby detaching the filter tube from the roller 12 and then moving it to the drying area for drying. In the current embodiment, for convenient transport, the transport drive component 42 can not only drive the vacuum adsorption box 43 to rise and fall, but also drive the vacuum adsorption box 43 to move horizontally, so that the filter tube can be directly placed on the drying rack 5 located on the side of the roller 12. Exemplarily, the transport drive 42 can be, but is not limited to, a transport robot. In the current embodiment, the transport drive 42 includes a second lifting drive and a second translation drive. The second lifting drive is connected to the output end of the second translation drive, and the vacuum suction box 43 is connected to the output end of the second lifting drive, thereby enabling multi-directional movement of the vacuum suction box 43. Exemplarily, both the second translation drive and the second lifting drive can be linear drive components such as linear slides.

[0029] It should also be noted that the vacuum adsorption box 43 covers the entire length of the filter tube as much as possible, thereby reducing the possibility of breakage during the handling of the filter tube.

[0030] like Figure 2 and Figure 5 As shown, in some embodiments, the fabric assembly 3 includes a dispensing tank 31 and a fabric trough 32. The dispensing tank 31 can inject slurry into the fabric trough 32. The fabric trough 32 extends axially along the forming roller 13. A discharge guide plate 33 is provided on the edge of the trough facing the forming roller 13. The discharge guide plate 33 extends axially along the forming roller 13, thereby enabling the slurry inside the fabric trough 32 to be evenly distributed onto the forming roller 13 through the discharge guide plate 33. In order to facilitate fabric application, the discharge guide plate 33 is inclined downward from the end near the fabric trough 32 to the end away from the fabric trough 32, so that the slurry can flow down along the fabric plate.

[0031] In addition, to make the slurry more uniform, a stirring roller 34 is provided in the slurry trough 32. The stirring roller 34 is rotatably connected to the trough wall of the slurry 32 and connected to the output end of the stirring drive 310 so that the stirring drive 310 can drive the stirring roller 34 to rotate. The stirring roller 34 is provided with stirring blades 35, which can make the slurry concentration in the slurry trough 32 more uniform, thereby improving the forming quality of the filter tube.

[0032] like Figure 5 As shown, in some embodiments, the fabric trough 32 includes a first sidewall 321 and a second sidewall 322 opposite to each other. A discharge guide plate 33 is disposed on the second sidewall 322, and a plurality of baffles 36 are disposed inside the fabric trough 32. The baffles 36 are connected to the bottom wall of the fabric trough 32, and the plurality of baffles 36 are spaced apart from the first sidewall 321 toward the second sidewall 322 so as to divide the fabric trough 32 into a plurality of sub-troughs. The tops of the first sidewall 321, the baffles 36 and the second sidewall 322 extend from the first sidewall 321 toward the second sidewall 322. The direction of 322 decreases sequentially, so that the lowest outlet of each sub-trough is distributed in a stepped manner. In the current embodiment, the bottom wall of the material distribution trough 32 is also set in a stepped manner, so that multiple sub-troughs are distributed in a stepped manner. Furthermore, each sub-trough is equipped with a stirring roller 34, and the material mixing tank 31 is set on one side of the first side wall 321 to inject slurry into the higher sub-troughs, so that the slurry is stirred step by step, thereby forcing the slurry to pass around the baffle 36 step by step, stop in each cavity step by step, and be stirred step by step, with forced turbulence throughout the process, eliminating dead zones and short-circuit flow, and improving the uniformity of the slurry.

[0033] like Figure 2 As shown, in some embodiments, to further improve the uniformity of the slurry in the distribution trough 32, the distribution assembly 3 further includes a distribution pipe 39. The inlet end of the distribution pipe 39 is connected to the outlet of the mixing tank 31, and the outlet end of the distribution pipe 39 is located at the opening of a sub-trough on the side away from the discharge guide plate 33. The distribution assembly 3 may also include a leveling drive, the output end of which is connected to the distribution pipe 39. The leveling drive drives the outlet end of the distribution pipe 39 to move repeatedly along the distribution trough 32, allowing the slurry to be circulated and distributed from one end of the sub-trough to the other, thereby improving the uniformity of the distribution. Exemplarily, the distribution pipe 39 is a flexible hose, and the leveling drive can be, but is not limited to, a linear drive such as a linear slide. It is understood that in some embodiments, the mixing tank 31 can also be directly located at the output end of the leveling drive, thereby directly driving the mixing tank 31 and the distribution pipe 39 to move synchronously.

[0034] In some embodiments, the stirring roller 34 is provided with multiple sets of stirring blades, which are distributed circumferentially along the stirring roller 34. Each set of stirring blades is provided with multiple stirring blades 35. The multiple stirring blades 35 in the same set are distributed at intervals along the axial direction of the stirring roller 34. The stirring blades 35 in adjacent sets of stirring blades are staggered to further improve the uniformity of stirring and improve the quality of filter tube forming.

[0035] It should be noted here that, because there is a gap between the forming roller 13 and the support roller 12 when the material is initially applied to the forming roller 13, until a certain thickness is achieved, the forming roller 13 needs to be driven to rotate during the initial application of the material. This ensures that the slurry is evenly distributed onto the forming roller 13. Based on this, as... Figure 3 As shown, in some embodiments, the fabric assembly 3 further includes a fabric drive 37 and two fabric rollers 38. The fabric drive 37 is mounted on the support base 23 and is located at its output end, allowing it to drive the fabric rollers 38 to rotate. The two fabric rollers 38 support the forming roller 13, and the contact between the fabric rollers 38 and the forming roller 13 drives the forming roller 13 to rotate. During the tube removal process, the support base 23 can move the forming roller 13 and the fabric rollers 38 together. Exemplarily, the fabric rollers 38 abut against the shaft of the forming roller 13, without interfering with the adjustable diameter of the forming roller 13, while still driving the forming roller 13 to rotate. In the current embodiment, the fabric drive 37 is a motor.

[0036] like Figure 6 As shown, in some embodiments, to further improve molding quality, the molding assembly 1 further includes a pressing drive 120 and two pressure rollers 19. The two pressure rollers 19 are spaced apart and located at the output end of the pressing drive 120. The two pressure rollers 19 are positioned above the molding roller 13 and are arranged in a triangular pattern with the molding roller 13. The pressing drive 120 can drive the two pressure rollers 19 to rotate, so that the slurry laid on the molding roller 13 can not only be supported and squeezed by the support roller 12, but also be pressed and squeezed by the pressure rollers 19 above, further improving the consistency of each position of the filter tube, and further improving the roundness and straightness of the filter tube, thus improving molding quality. In the current embodiment, the distance between the pressure roller 19 and the molding roller 13 is the same as the distance between the support roller 12 and the molding roller 13, thereby improving the extrusion consistency.

[0037] In addition, when the pressure rollers 19 are set, the end of the discharge guide plate 33 away from the material trough 32 can be set above the two pressure rollers 19 and between the two pressure rollers 19, so that the slurry can be distributed to the forming roller 13 through the gap between the two pressure rollers 19.

[0038] Continue as Figure 6As shown, in some embodiments, to facilitate the transfer of the filter tube after molding, the molding assembly 1 further includes an avoidance drive component and a pressing frame 110. The pressing drive component 120 is disposed on the pressing frame 110, and both ends of the pressure rollers 19 are rotatably disposed on the pressing frame 110 via bearings. One end of each pressure roller 19 can also be provided with a driven wheel 17, and the pressing frame 110 can also be provided with a driving wheel 16. The driving wheel 16 and the driven wheel 17 can also be connected by a flexible component 18, thereby enabling the pressing drive component 120 to drive the pressure rollers 19 to rotate. Exemplarily, the pressing drive component 120 is a motor. Furthermore, to facilitate the clearing of space above the filter tube and make it easier for the transport assembly 4 to retrieve it, the avoidance drive includes a first lifting drive and a first translation drive. The pressing frame 110 is located at the output end of the first lifting drive, enabling it to rise and fall under its influence. The first lifting drive is located at the output end of the first translation drive, allowing the pressure roller 19 to move axially along its axis or horizontally along an axis perpendicular to its axis. This moves the pressure roller 19 away from the space above the support roller 12, making it easier to retrieve the filter tube located on the support roller 12. For example, before transporting the filter tube, the first lifting drive can be used to lift the pressure roller 19 to detach it from the filter tube, and then the first translation drive can be used to move the pressure roller 19 horizontally, avoiding the space above and creating space for transport.

[0039] For example, both the first translation drive and the first lifting drive can be linear drive components, such as a linear slide.

[0040] In the current embodiment, the driving speeds of the supporting drive member 11, the fabric drive member 37, and the pressing drive member 120 can be similar or the same.

[0041] like Figure 7 As shown, the present invention also provides a molding method using the above-mentioned ceramic fiber filter tube vacuum filtration molding device. The molding method includes the following steps: Increase the diameter of the forming roller 13, lay the wound filter cloth on the forming roller 13, and place the forming roller 13 between the support roller 12 and the pressure roller 19; The cloth-driving component 37 drives the cloth-distributing tube 39 to reciprocate, so that the slurry in the mixing tank 31 enters the cloth-distributing trough 32 for stirring; the slurry in the cloth-distributing trough 32 is distributed onto the filter cloth of the cloth-distributing roller 38 through the discharge guide plate 33 and the gap between the two pressure rollers 19; and the cloth-distributing component 37 drives the forming roller 13 to rotate through the cloth-distributing roller 38, so that the slurry is gradually distributed in the circumferential direction of the forming roller 13; during the cloth-distributing process, the vacuum filter component continuously extracts water from the slurry through the filter holes on the forming roller 13. As the slurry on the cloth roller 38 gradually thickens, it comes into contact with the pressure roller 19 and the support roller 12. During the rotation process, the pressure roller 19 and the support roller 12 press the slurry together to form a filter tube. Stop injecting slurry into the fabric trough 32, so that the fabric trough 32 will also stop distributing slurry onto the forming roller 13; stop the rotation of the pressure roller 19 and the support roller 12; Reduce the diameter of the forming roller 13 so that the forming roller 13 is separated from the formed filter tube; The support roller 12 drives the forming roller 13 to move along its axial direction, so that the forming roller 13 is removed from the formed filter tube, and the filter tube is supported by the support roller 12. The drive component avoids moving the pressure roller 19, thereby freeing up the space above the filter tube; The conveying drive unit 42 drives the vacuum adsorption box 43 to adsorb the filter tube supported by the pressure roller 19. Then, the conveying drive unit 42 drives the vacuum adsorption box 43 to move and transport the filter tube to the drying rack 5 for placement. Dry the filter tubes on drying rack 5.

[0042] The above-described forming method enables the slurry on the forming roller 13 to be squeezed, achieving uniform distribution of the slurry in the axial and radial directions and improving its density, thereby realizing the production of ultra-high strength filter tubes without the need for secondary processing to meet standard strength requirements. Furthermore, the squeezing by the support roller 12 and pressure roller 19 can significantly improve the roundness and straightness of the filter tubes, enhancing the forming quality. After forming, the forming roller 13 is reduced in diameter and can be driven to move along its axial direction by the tube removal drive component 21, causing the forming roller 13 to detach from the filter tube and complete the tube removal operation. Subsequently, the filter tubes remaining on the support roller 12 can be transported and dried without disassembling the forming roller 13, and the drying process does not require the use of the forming roller 13, thus improving production efficiency.

[0043] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A ceramic fiber filter tube vacuum forming device, characterized in that, include: A forming assembly (1) includes a support drive (11), a roller (12), a vacuum filter element, and a forming roller (13). Two rollers (12) are spaced apart and connected to the output end of the support drive (11). The support drive (11) can drive the rollers (12) to rotate. The vacuum filter element is connected to the forming roller (13). The forming roller (13) has several filter holes. The forming roller (13) is located above the two rollers (12), and the two rollers (12) and the forming roller (13) are arranged in a triangle. The diameter of the forming roller (13) is adjustable. The tube removal assembly (2) includes a tube removal drive (21) connected to the forming roller (13) and capable of driving the forming roller (13) to move along its axial direction. Fabric assembly (3) is configured to rotate the forming roller (13) and apply slurry onto the forming roller (13).

2. The ceramic fiber filter tube vacuum forming device according to claim 1, characterized in that, The tube removal assembly (2) includes a base (22) and a support (23). The base (22) is provided with a track (24) extending along the axial direction of the forming roller (13). The tube removal drive (21) can drive the support (23) to move on the track (24). The forming roller (13) is rotatably connected to the support (23).

3. The ceramic fiber filter tube vacuum forming device according to claim 1, characterized in that, The forming assembly (1) further includes a rotary joint (14), which is connected to one axial end of the forming roller (13), and the vacuum filter element is connected to the forming roller (13) through the rotary joint (14); And / or, the molding assembly (1) further includes a bracket (15), the supporting drive member (11) is disposed on the bracket (15), the output end of the supporting drive member (11) is provided with a drive wheel (16), the two idler rollers (12) are rotatably disposed on the bracket (15), and one axial end of the two idler rollers (12) is provided with a driven wheel (17), the drive wheel (16) and the driven wheel (17) are connected by a flexible member (18).

4. The ceramic fiber filter tube vacuum forming device according to claim 1, characterized in that, The forming assembly (1) further includes a pressing drive (120) and two pressure rollers (19). The two pressure rollers (19) are disposed at the output end of the pressing drive (120) and are disposed above the forming roller (13). The two pressure rollers (19) and the forming roller (13) are arranged in a triangular distribution. The pressing drive (120) can drive the two pressure rollers (19) to rotate. The distance between the pressure rollers (19) and the forming roller (13) is the same as the distance between the support roller (12) and the forming roller (13).

5. The ceramic fiber filter tube vacuum forming device according to claim 4, characterized in that, The forming assembly (1) further includes an avoidance drive and a pressing frame (110). The two pressure rollers (19) are rotatably mounted on the pressing frame (110). The avoidance drive includes a first lifting drive and a first translation drive. The pressing frame (110) is located at the output end of the first lifting drive. The first lifting drive drives the pressing frame (110) to rise and fall. The first lifting drive is located at the output end of the first translation drive. The first translation drive drives the first lifting drive to move along the axial direction of the pressure roller (19) or to move horizontally along the axial direction perpendicular to the pressure roller (19).

6. The ceramic fiber filter tube vacuum forming device according to any one of claims 1-5, characterized in that, The ceramic fiber filter tube vacuum forming device further includes a transport component (4), which includes a support frame (41). The support frame (41) is provided with a transport drive component (42) and a vacuum adsorption box (43). The vacuum adsorption box (43) is located at the output end of the transport drive component (42). The vacuum adsorption box (43) is provided with an arc-shaped groove (431). The concave surface of the arc-shaped groove (431) is provided with a plurality of vacuum adsorption holes. The transport drive component (42) is at least able to drive the vacuum adsorption box (43) to rise and fall.

7. The ceramic fiber filter tube vacuum forming device according to any one of claims 1-5, characterized in that, The fabric assembly (3) includes a mixing tank (31) and a fabric trough (32). The fabric trough (32) extends along the axial direction of the forming roller (13). A discharge guide plate (33) is provided on the edge of the trough facing the forming roller (13). The discharge guide plate (33) is inclined downward from one end near the fabric trough (32) to the other end away from the fabric trough (32). A plurality of stirring rollers (34) are rotatably arranged inside the fabric trough (32). Stirring blades (35) are provided on the stirring rollers (34). The mixing tank (31) can inject the slurry into the fabric trough (32).

8. The ceramic fiber filter tube vacuum forming device according to claim 7, characterized in that, The fabric trough (32) includes a first sidewall (321) and a second sidewall (322) opposite to each other. The discharge guide plate (33) is connected to the top of the second sidewall (322). A plurality of baffles (36) are provided in the fabric trough (32). The plurality of baffles (36) are distributed at intervals along the direction from the first sidewall (321) to the second sidewall (322) so as to divide the fabric trough (32) into a plurality of sub-troughs. The stirring roller (34) is distributed in each sub-trough. The tops of the first sidewall (321), the baffles (36) and the second sidewall (322) decrease sequentially from the first sidewall (321) to the second sidewall (322).

9. The ceramic fiber filter tube vacuum forming device according to claim 1, characterized in that, The fabric assembly (3) further includes a fabric drive (37) and a fabric roller (38). The fabric drive (37) is disposed at the output end of the tube removal drive (21). The output end of the fabric drive (37) is connected to the fabric roller (38). The fabric drive (37) can drive the fabric roller (38) to rotate. The fabric roller (38) abuts against the forming roller (13) so as to drive the fabric roller (38) to rotate.

10. A molding method, employing the ceramic fiber filter tube vacuum filtration molding device as described in any one of claims 1-9, characterized in that, The molding method includes the following steps: Increase the diameter of the forming roller (13) and lay a wound filter cloth on the forming roller (13); The fabric assembly (3) drives the forming roller (13) to rotate and applies slurry onto the filter cloth; The idler roller (12) squeezes the slurry to form a filter tube; Stop the application of the slurry; Reduce the diameter of the forming roller (13); The tube removal drive (21) drives the forming roller (13) to move along its axial direction, and the forming roller (13) disengages from the filter tube; Dry the filter tube.

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