A cold model apparatus and method for a process of preparing fibers by centrifugation

Abstract

The present application belongs to the cross technical field of material preparation and solid waste utilization, and provides a cold-state simulation device for a fiber preparation process by a centrifugal method, which comprises a medium storage box, a flow valve, a rotating shaft, a rotating roller and a high-speed camera module, the medium storage box is connected with the flow valve through a pipeline, the flow valve is connected with an outflow port through a pipeline, the outflow port is located above the rotating roller, the rotating roller is fixed on the rotating shaft, the rotating shaft is connected with a rotating shaft driving mechanism, a diffuser plate and an LED light source are sequentially arranged behind the rotating roller, and a high-speed camera module is arranged in front of the rotating roller. And a cold-state simulation method, which adopts a high-speed camera module to record the motion and spreading process of fluid medium flowing out of the outflow port on the roller surface of the rotating roller. By adjusting different equipment parameters, the motion and spreading process of the fluid on the roller surface can be directly observed, which helps to find out the factors affecting the motion of the fluid on the roller surface.

Description

Technical Field

[0001] This invention belongs to the interdisciplinary field of materials preparation and solid waste utilization, and specifically relates to a cold-state simulation device and method for the centrifugal fiber preparation process. Background Technology

[0002] With the widespread application of centrifugal fiber preparation technology, the fluid movement and spreading process on rotating rollers has become a common challenge in fiber production. Numerous factors influence this process, such as fluid properties, roller speed, roller diameter, and nozzle position. Currently, equipment parameter settings are largely adjusted based on production experience. Research on centrifugal fiber preparation is still in its early stages, and there are currently no relevant cold-state experimental devices in China.

[0003] In actual production processes, roller rotation speeds exceed 150 r / s, and roller surface temperatures exceed 1500℃, posing risks such as splashing and spraying. With the widespread application of centrifugal fiber production, related research is gradually being conducted. However, due to the harsh experimental environment and the high cost of conducting experiments on production lines, it is impossible to carry out relevant observation experiments on-site. Therefore, it is necessary to establish a cold-state simulation device for centrifugal fiber production to study the fluid's motion and spreading behavior on the rotating roller surface by adjusting different equipment parameters. Summary of the Invention

[0004] This invention addresses the technical problem in existing technologies where the movement and spreading process of high-temperature melt on a rotating roller surface cannot be directly observed. It provides a cold simulation device and method for the centrifugal fiber preparation process. By adjusting different equipment parameters, the movement and spreading process of fluid on the roller surface can be directly observed, which helps to identify the factors affecting the fluid movement on the roller surface.

[0005] The technical solution adopted in this invention is: a cold simulation device for the centrifugal fiber preparation process, comprising a medium storage tank, a flow valve, a rotating shaft, a rotating roller, and a high-speed camera module. The medium storage tank is connected to the flow valve through a pipe, and the flow valve is connected to an outlet through a pipe. The outlet is located above the rotating roller, and the rotating roller is fixed on the rotating shaft. The rotating shaft is connected to a rotating shaft drive mechanism. A diffuser plate and an LED light source are arranged sequentially behind the rotating roller, and a high-speed camera module is arranged in front of the rotating roller. The high-speed camera module is used to capture the movement and spreading process of the fluid medium flowing out of the outlet on the roller surface of the rotating roller.

[0006] Furthermore, a baffle plate is provided on the upper right side of the rotating roller, the lower end of the baffle plate is 3-5mm away from the roller surface of the rotating roller, and the outlet is located on the upper left side of the rotating roller, with an angle of 5°-55° between it and the center line of the rotating roller.

[0007] Furthermore, the rotating shaft drive mechanism includes a motor, a driving wheel, a driven wheel, and a belt. The output shaft of the motor is connected to the driving wheel, the driving wheel is connected to the driven wheel via the belt, and the driven wheel is connected to the rotating shaft.

[0008] Furthermore, the transmission ratio between the motor and the rotating shaft is 1:4, the speed of the motor is 0-3000 r / min, and the speed of the rotating shaft is 0-12000 r / min.

[0009] Furthermore, there is more than one rotating roller with different diameters, and one of the multiple rotating rollers is mounted on the rotating shaft by a nut.

[0010] Furthermore, a slide rail device is installed above the rotating roller, and the outlet is fixed on the slider of the slide rail device. The outlet slides on the slide rail device along the axial and radial directions of the rotating roller.

[0011] Furthermore, the rotating shaft is located inside the bearing housing, the LED light source is fixed on the bearing housing, and the diffuser plate is fixed on the LED light source.

[0012] Furthermore, a collection trough is provided below the rotating roller, the inlet of the recovery pump is connected to the collection trough through a pipe, and the outlet of the recovery pump is connected to the media storage tank through a pipe.

[0013] The technical solution adopted in this invention is: a cold-state simulation method for the centrifugal fiber preparation process, using the aforementioned cold-state simulation device for the centrifugal fiber preparation process, comprising the following steps:

[0014] Step 1: Prepare the fluid medium by placing it into the media storage tank;

[0015] Step 2: Install the rotating roller and set the outlet position;

[0016] Step 3: Turn on the LED light source; set the rotation speed of the rotating roller, and then turn on the motor;

[0017] Step 4: Turn on the recovery pump, flow valve, and high-speed camera module, and record for 20-30 seconds using the high-speed camera module;

[0018] Step 5: Close the flow valve, LED light source, motor, high-speed camera module, and recovery pump;

[0019] Step 6: Combine the video captured by the high-speed camera module to observe the motion and spreading process of the fluid medium on the roller surface of the rotating roller.

[0020] Furthermore, the fluid medium is a glycerol-water solution, wherein the mass fraction of glycerol is 85%, 75%, or 60%.

[0021] Working principle:

[0022] Compared with the prior art, the beneficial effects of this invention are:

[0023] 1. The fluid medium of this invention is recycled, reducing consumption; the experimental device has a high degree of automation; the experimental environment has low risk; the cost of use is low; and the observation effect is good. This device can be used to study the motion and spreading process of fluid on the roller surface in the process of preparing fibers by centrifugation. The simulation experimental results are accurate and reliable, and have high reference value for actual production.

[0024] 2. This invention can simulate the process of melt spreading on the roller surface during the preparation of aluminosilicate ceramic fibers, and can directly observe the fluid movement pattern on the roller surface. This enables cold simulation of the process of high-temperature melt spreading on the roller surface, solving the problem that it is impossible to observe the spreading of high-temperature melt on the roller surface in industrial production applications, and providing a new solution for guiding production practice. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the cold simulation device according to an embodiment of the present invention.

[0026] In the diagram: 1-Media storage tank; 2-Recovery pump; 3-Motor; 4-Flow valve; 5-Collection tank; 6-High-speed camera module; 7-Rotating roller; 8-Diffuser plate; 9-LED light source; 10-Rotating shaft; 11-Outlet; 12-Baffle plate. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1

[0029] Embodiments of the present invention provide a cold-state simulation device for the centrifugal fiber preparation process, such as... Figure 1As shown, it includes a media storage tank 1, a flow valve 4, a rotating shaft 10, a rotating roller 7, and a high-speed camera module 6. The media storage tank 1 is connected to the flow valve 4 via a pipe, and the flow valve 4 is connected to an outlet 11 via a pipe. The outlet 11 is located to the upper left of the rotating roller 7, and the angle between the outlet 11 and the centerline of the rotating roller 7 is 5°-55°. An XY axis slide rail device (not shown in the figure) is installed above the rotating roller 7, and the outlet 11 is fixed on the slider of the slide rail device. The outlet 11 can slide and be fixed on the slide rail device along the axial and radial directions of the rotating roller 7.

[0030] The rotating roller 7 is fixed on the rotating shaft 10, which is connected to a rotating shaft drive mechanism. The rotating shaft drive mechanism includes a motor 3, a driving wheel, a driven wheel, and a belt. The output shaft of the motor 3 is connected to the driving wheel, the driving wheel is connected to the driven wheel via the belt, and the driven wheel is connected to the rotating shaft 10. The motor 3 drives the rotating shaft 10 to rotate via the driving wheel, driven wheel, and belt, which in turn drives the rotating roller 7 to rotate. In this embodiment, the motor 3 is a three-phase asynchronous motor with a speed of 0-3000 r / min. The transmission ratio between the three-phase asynchronous motor and the rotating shaft 10 is 1:4; therefore, the speed of the rotating shaft 10 is 0-12000 r / min.

[0031] The rotating rollers 7 are not singly numerous and have different diameters. In this embodiment, the rotating rollers 7 have three diameters: 100mm, 150mm, and 200mm. One of the three rotating rollers 7 is selected and installed on the rotating shaft 10 with a nut. The rotating roller 7 can be quickly replaced by removing the nut.

[0032] The rotating shaft 10 is located inside the bearing housing, with both ends extending out of the bearing housing. The rear end of the rotating shaft 10 is fixedly connected to the driven wheel, and the rotating roller 7 is fixed to the front end of the rotating shaft 10 by a nut. A diffuser plate 8 and an LED light source 9 are sequentially arranged behind the rotating roller 7, located between the rotating roller 7 and the bearing housing. The LED light source 9 is fixed to the bearing housing, and the diffuser plate 8 is fixed to the LED light source 9. The diffuser plate 8 is 10mm away from the rotating roller 7; the LED light source 9 is 15mm away from the diffuser plate 8. The diffuser plate 8 is a circular frosted acrylic plate with a diameter of 325mm and a 50mm diameter opening at the center. The diffuser plate 8 and the LED light source 9 are concentrically mounted with the rotating shaft 10. A baffle plate 12 is located on the upper right side of the rotating roller 7, mounted on the bearing housing, with its lower end 3mm away from the roller surface of the rotating roller 7. The baffle plate 12 can slide up and down and lock to prevent the fluid medium on the roller surface from impacting the flow stream after it has circled the rotating roller 7 once, thus ensuring the stability of the flow stream.

[0033] A high-speed camera module 6 is provided in front of the rotating roller 7. The high-speed camera module 6 is used to capture the movement and spreading process of the fluid medium flowing out of the outlet 11 on the roller surface of the rotating roller 7.

[0034] A collection trough 5 is provided below the rotating roller 7. The inlet of the recovery pump 2 is connected to the collection trough 5 through a pipe, and the outlet of the recovery pump 2 is connected to the media storage tank 1 through a pipe.

[0035] This embodiment simulates the fiber preparation process by adjusting parameters such as the rotation speed of the rotating roller 7, the position of the outlet 11, and the diameter of the rotating roller 7, and analyzes the fluid movement and spreading process on the roller surface.

[0036] Example 2

[0037] An embodiment of the present invention provides a cold simulation method for the centrifugal fiber preparation process, using the cold simulation apparatus for the centrifugal fiber preparation process of Example 1, comprising the following steps:

[0038] Step 1: Prepare 25 kg of 85% glycerol-water solution as the fluid medium, which can simulate the molten state of aluminosilicate ceramic fibers. Add the fluid medium to media storage tank 1.

[0039] Step 2: Open the flow valve 4 and the recovery pump 2 to allow the fluid medium to flow from the medium storage tank 1 through the flow valve 4 and the outlet 11 to the collection tank 5, and then return to the medium storage tank 1 through the recovery pump 2 to fully wet the pipeline. Then close the flow valve 4 and the recovery pump 2.

[0040] Install a 100mm diameter rotating roller 7 and position the outlet 11. Position the outlet 11 5° to the left of the center line of the rotating roller 7, at a vertical height of 20mm from the roller surface.

[0041] Step 3: Turn on the LED light source 9; set the rotation speed of the rotating roller 7, and then turn on the motor 3. The rotating roller 7 will rotate at a speed of 200 r / min.

[0042] Step 4: Turn on the recovery pump 2, flow valve 4 and high-speed camera module 6, and record for 30 seconds using the high-speed camera module 6.

[0043] Step 5: Close the flow valve 4, LED light source 9, motor 3 and high-speed camera module 6; after all the fluid medium in the collection tank 5 has been recovered, close the recovery pump 2 and remove the rotating roller 7.

[0044] Step 6: Observe the movement and spreading process of the fluid medium on the roller surface of the rotating roller 7 using the video captured by the high-speed camera module 6. If the video time is too short to clearly observe the movement and spreading process of the fluid medium on the roller surface of the rotating roller 7, the recording time of the high-speed camera module 6 can be appropriately extended, for example, to 60 seconds.

[0045] The present invention has been described in detail above through embodiments, but the content described is only an exemplary embodiment of the present invention and should not be considered as limiting the scope of the present invention. The scope of protection of the present invention is defined by the claims. Any technical solutions designed by those skilled in the art using the technical solutions described in the present invention, or designed by those skilled in the art under the inspiration of the technical solutions of the present invention, within the substance and protection scope of the present invention, to achieve the above-mentioned technical effects, or any equivalent changes and improvements made to the scope of the application, should still fall within the patent protection scope of the present invention.

Claims

1. A cold model of a process for the production of fibres by centrifugation, characterised in that: The centrifugal method for preparing fibers comprises a medium storage tank, a flow valve, a rotating shaft, a rotating roller and a high-speed camera module. The medium storage tank is connected to the flow valve through a pipeline. The flow valve is connected to an outflow port through a pipeline. The outflow port is located above the rotating roller. The rotating roller is fixed on the rotating shaft. The rotating shaft is connected to a rotating shaft driving mechanism. A light diffuser and an LED light source are arranged in sequence behind the rotating roller. A high-speed camera module is arranged in front of the rotating roller. The high-speed camera module is used to capture the motion and spreading process of the fluid medium flowing out of the outflow port on the roller surface of the rotating roller. A flow baffle is arranged above the right side of the rotating roller. The lower end of the flow baffle is 3-5 mm away from the roller surface of the rotating roller. The outflow port is located above the left side of the rotating roller. The included angle between the outflow port and the center line of the rotating roller is 5°-55°. The fluid medium is a glycerol-water solution. The mass fraction of glycerol is 85%, 75% or 60%.

2. A cold model of a process for the production of fibres by centrifugation according to claim 1, characterised in that: The rotating shaft driving mechanism comprises a motor, a driving wheel, a driven wheel and a belt. The output shaft of the motor is connected to the driving wheel. The driving wheel is connected to the driven wheel through the belt. The driven wheel is connected to the rotating shaft.

3. A cold model of a process for the production of fibres by centrifugation as claimed in claim 2, characterised in that: The transmission ratio of the motor and the rotating shaft is 1:

4. The rotating speed of the motor is 0-3000 r / min. The rotating speed of the rotating shaft is 0-12000 r / min.

4. A cold model of a process for preparing fibres by centrifugation as claimed in claim 1, characterised in that: There is more than one rotating roller. The rotating rollers have different diameters. One of the rotating rollers is installed on the rotating shaft through a nut.

5. A cold model of a process for preparing fibres by centrifugation as claimed in claim 1, characterised in that: A sliding rail device is arranged above the rotating roller. The outflow port is fixed on the sliding block of the sliding rail device. The outflow port slides on the sliding rail device in the axial direction and the radial direction of the rotating roller.

6. A cold model of a process for preparing fibres by centrifugation as claimed in claim 1, characterised in that: The rotating shaft is located in a bearing seat. The LED light source is fixed on the bearing seat. The light diffuser is fixed on the LED light source.

7. A cold model of a process for preparing fibres by centrifugation as claimed in claim 1, characterised in that: A flow collection tank is arranged below the rotating roller. The inlet of a recovery pump is connected to the flow collection tank through a pipeline. The outlet of the recovery pump is connected to the medium storage tank through a pipeline.

8. A cold model method for the production of fibres by a centrifugal process, characterised in that: The cold-state simulation device for the process of preparing fibers by the centrifugal method of any one of claims 1-7 comprises the following steps: Step 1: configure the fluid medium. Put the fluid medium into the medium storage tank. Step 2: install the rotating roller. Set the position of the outflow port. Step 3: turn on the LED light source. Set the rotating speed of the rotating roller. Then turn on the motor. Step 4: turn on the recovery pump, the flow valve and the high-speed camera module. Record for 20-30 seconds by using the high-speed camera module. Step 5: turn off the flow valve, the LED light source, the motor, the high-speed camera module and the recovery pump. Step 6: observe the motion and spreading process of the fluid medium on the roller surface of the rotating roller by combining the video collected by the high-speed camera module.

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