Automatic rotating device and method for acid treatment of high-silica glass fiber rope yarn

Abstract

The invention discloses an automatic rotating device and method for high silica glass fiber rope yarn acid treatment. The automatic rotating device comprises a pickling tank assembly, a beam frame assembly and a transmission mechanism. The pickling tank assembly is a main body structure for bearing acid liquor and washing liquor; the beam frame assembly is of a frame structure and used for hanging yarn rods and rope yarn. The transmission mechanism provides power to enable the yarn rod to rotate automatically, relative movement of the rope yarn and the yarn rod is achieved, the problem of impurity accumulation on the contact face is solved, and the inherent quality and production efficiency of the rope yarn are improved. The acid treatment process is in a sealed state through the tank body cover plate, so that the dissipation of acid gas is reduced, the operation safety is guaranteed, and the external pollution is avoided. Full-process automation of acid liquid injection, circulation, discharge and yarn rod rotation is achieved, and manual intervention is reduced; through dynamic rotation, it is ensured that the rope yarn makes full contact with acid liquor or water, and the treatment effect is improved; glass fiber reinforced plastics and polytetrafluoroethylene materials are adopted, so that the service life of equipment is prolonged; and due to the circulating overflow design, the waste of acid liquor is reduced, and the production cost is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of fiber material surface treatment equipment, in particular to an automatic rotating device for high-silica glass fiber rope yarn treatment. BACKGROUND

[0002] As a kind of high-performance inorganic fiber material, high-silica glass fiber rope yarn has the characteristics of high temperature resistance, good insulation, strong chemical stability, etc., and is widely used in the fields of aerospace, fire prevention and heat insulation, high temperature filtration, etc. In the production process of high-silica glass fiber rope yarn, whether it is ternary sodium borosilicate glass fiber composed of SiO2, B2O3 and Na2O or binary sodium silicate glass fiber composed of SiO2 and Na2O, it needs to be treated by acid leaching. In this process, non-silicon metal ions Na + , B 3+ , etc. in the original glass migrate from the glass body to the solution under the action of acid solutions such as sulfuric acid, hydrochloric acid and nitric acid, and undergo the following example exchange reaction:

[0003] ≡Si-OM + H + →≡Si-OH + M +

[0004] Taking the treatment of binary sodium silicate glass fiber by sulfuric acid as an example, the main impurity Na2O in the glass fiber is converted into Na2SO4 soluble salt through acid leaching reaction, and is dissolved into the acid treatment solution, leaving a microporous structure of silica skeleton in the glass fiber. Then, through high temperature treatment at 600-800 DEG C, the micropores are closed and the skeleton structure tends to be compact, so that a high-stability fiber material is obtained. It can be seen that acid leaching is a key step to improve the SiO2 content of glass fiber, remove surface impurities and enhance the strength of the fiber, and the treatment effect is mainly affected by process parameters and equipment operation. Taking two kinds of high-silica glass fiber yarn manufacturing processes disclosed in Chinese patent documents as examples:

[0005] In the invention disclosed in the patent document CN101654833A, the glass fiber raw yarn is first twisted and plied to form a yarn cylinder, and is wound into a yarn bundle by winding equipment. Then, the yarn is evenly arranged on a special yarn rack and hung in an acid leaching tank for treatment. After the treatment is completed, the yarn is soaked in clean water, washed at 40-60 DEG C, and the acid content on the surface of the yarn is detected by PH test paper. When the PH value is greater than 5, the washing is stopped, and finally the yarn is heat set and cut into a fixed length.

[0006] In the invention with publication number CN102839476A, a production process of high-strength high-silica glass fiber yarn is proposed. The process first unwinds and doubles the sodium borosilicate glass fiber strands to form high-silica glass fiber yarn, and then winds the yarn on a yarn frame to form a yarn roll. Subsequently, the yarn roll is hung and evenly distributed in an acid leaching tank for treatment. After acid leaching, hot water at 50-65℃ is injected into the tank by spraying, and the tank is stirred and cleaned for 20-30 minutes by an acid-resistant pump. After the waste water is discharged, the tank is cleaned again with normal temperature water in the same way for 20-30 minutes, and the treatment is finally completed.

[0007] Similar to the above two inventions, the acid leaching process of high-silica rope yarn has relatively mature and stable process parameters, but there is still an unavoidable problem in the acid leaching process of high-silica products: as the reaction continues, the concentration of inorganic salt generated continuously increases, and the part of the glass fiber rope yarn in contact with the yarn frame as the high concentration area of inorganic salt is prone to precipitate inorganic salt crystals due to oversaturation, which adheres to the surface of the glass fiber and hinders further reaction with the acid solution. In the traditional rope yarn acid treatment process, large flow flushing or manual overturning is often used to solve the above problem, but due to the difficulty in thoroughly flushing the acid solution at the contact part of the yarn frame and the rope yarn, and the high acid temperature and acid gas choking in manual operation, this method is not effective and difficult to ensure product quality. In addition, manual yarn turning requires open operation, and the open environment is easy to introduce external pollutants, affecting product quality, and the unorganized emission of acid gas during this process seriously harms the health of operators and the environment. Therefore, a device that can realize sealed operation, automatic rotation and effective control of acid gas emission is needed to improve the efficiency and quality of the rope yarn acid treatment process. SUMMARY

[0008] To overcome the problems of impurity accumulation causing strength reduction of the rope yarn and unorganized emission of acid gas, which endanger the health of operators, the present application proposes an automatic rotating device for acid treatment of high-silica glass fiber rope yarn and a method thereof.

[0009] The automatic rotating device for high-silica glass fiber rope yarn treatment proposed by the present application includes an acid washing tank assembly, a beam frame assembly and a transmission mechanism. The acid washing tank assembly is the main structure for carrying acid and water washing liquid; the beam frame assembly is a frame structure for suspending the yarn rod and the rope yarn; and the transmission mechanism provides power to realize automatic rotation of the yarn rod.

[0010] The pickling tank assembly includes a tank body, a yarn impregnation tank, an overflow tank, a transmission cavity, a motor support base, and a yarn frame support column. The tank body is divided into the yarn impregnation tank and the transmission cavity by a partition. Multiple transmission shaft mounting holes are evenly distributed on the upper end of the partition, and multiple transmission shaft mounting holes are also evenly distributed on the outer wall of the transmission cavity, with the mounting holes on the partition and the mounting holes on the outer wall of the transmission cavity being coaxial. The center distance between adjacent transmission shaft mounting holes satisfies the meshing of gears mounted on the transmission shaft. A U-shaped overflow tank is machined on the three sides of the tank body.

[0011] The beam frame assembly is located inside the yarn impregnation tank, and the top of the yarn rod frame of the beam frame assembly is lower than the upper end face of the inner wall of the overflow tank, so that the rope yarn hanging on the yarn rod can be completely immersed in the tank cavity.

[0012] The transmission mechanism is located inside the transmission cavity of the trough, and each yarn rod in the beam frame assembly is connected to each transmission shaft in the transmission mechanism, and rotates under the drive of the transmission shaft.

[0013] The outer wall of the overflow channel is 100mm higher than the inner wall. The width d of the overflow channel is 200mm and the depth h is 400mm.

[0014] An overflow port is located at the upper end of one side of the outer wall of the tank, and an acid inlet / outlet port is located at the lower end of the other side of the outer wall of the tank.

[0015] There is a yarn frame support column at each of the four corners of the tank. There is a motor support seat on the outer surface of the tank, and the motor support seat is located at one end outside the transmission cavity; the drive motor is placed on the motor support seat, and the output shaft of the drive motor is fixedly connected to the drive shaft in the transmission mechanism.

[0016] The tank is made of fiberglass, with an acid and alkali resistance of 1-14 pH value, a tensile strength of 500 MPa, a flexural strength of 600 MPa, a surface roughness Ra of 2.8-3.2 μm, and an operating temperature of 10℃-100℃.

[0017] The beam frame assembly includes a pair of yarn rod frames, a pair of support plates, two yarn rod frame fixing rods, two sets of support plate fixing rods, and multiple yarn rods. The pair of support plates consists of two parallel vertical plates, each with a yarn rod frame fixing rod on its upper end face. The pair of yarn rod frames are also two parallel vertical plates, located at opposite ends of the support plates, with the lower surface of each yarn rod frame embedded in the yarn rod frame fixing rod at its respective end. Each support plate has two vertically arranged through holes at both ends. One set of support plate fixing rods inserts its two ends into the through holes on each support plate to support and fix the two parallel support plates.

[0018] The upper surface of the pair of yarn rod racks is uniformly provided with arc-shaped grooves, which are yarn rod placing grooves, one end of each yarn rod after assembly is placed in each yarn rod placing groove on the surface of one yarn rod rack, the other end is also placed in each yarn rod placing groove on the surface of the other yarn rod rack, and passes through the transmission shaft mounting hole on the groove body, and is connected with the transmission shaft in the transmission cavity through the shaft end connector.

[0019] The transmission mechanism includes a driving gear, a driving shaft, a plurality of driven gears and a plurality of driven wheel transmission shafts, wherein one end of the driving shaft and one end of the plurality of driven wheel transmission shafts are respectively placed in each transmission shaft mounting hole on the outer wall of the transmission cavity through a shaft coupling, and the other end is placed in the transmission shaft mounting hole on the partition plate through a sliding bearing. The driving gear is mounted on the driving shaft, each driven gear is mounted on each driven wheel transmission shaft, and the driving gear is engaged with the adjacent driven gear, and each driven gear is engaged with each other. When the driving gear is driven by the driving motor, the driving gear is driven to rotate.

[0020] The application also provides a method for acid treatment of high-silica glass fiber rope yarn using the automatic rotating device, and the specific process is as follows:

[0021] Step 1, yarn feeding:

[0022] The rope yarns are evenly hung on the yarn rods; 6-8 rope yarns are hung on each yarn rod.

[0023] Step 2, automatic acid feeding:

[0024] Start the automatic acid feeding and discharging control system, so that the sulfuric acid solution with a concentration of 2 mol / L continuously flows into the yarn dipping tank from the acid inlet / outlet at a flow rate of 5 cubic meters per hour from the bottom of the acid tank, and the flow rate is maintained until the acid treatment process is completed.

[0025] Step 3, sulfuric acid treatment:

[0026] When the acid solution completely immerses the yarn rack, the driving motor is started. The driving motor drives each yarn rod to rotate through the transmission mechanism, and the rope yarns hung on each yarn rod are treated with sulfuric acid; the treatment time is 3 hours.

[0027] During the sulfuric acid treatment process, the sulfuric acid solution continuously flows into the yarn dipping tank from the acid inlet / outlet, while the upper layer of acid solution overflows into the overflow tank and is discharged through the overflow port, maintaining a circulating overflow until the sulfuric acid treatment is completed.

[0028] Step 4, automatic acid discharging:

[0029] After the sulfuric acid treatment is completed, the driving motor stops working, and the sulfuric acid solution in the yarn dipping tank is automatically discharged from the acid inlet / outlet.

[0030] Step 5, water feeding:

[0031] After the sulfuric acid solution is completely discharged, the filtered tap water is continuously injected into the yarn dipping tank from the acid inlet / outlet at a flow rate of 10 cubic meters per hour, and the flow rate is maintained until the end of the yarn washing process.

[0032] Step 6, yarn washing:

[0033] When the tap water completely immerses the yarn rack, the driving motor is started to rotate each yarn rod to clean the hanging rope yarn; the processing time is 3 hours.

[0034] Step 7, draining water:

[0035] After the water washing is completed, the driving motor stops operating, and the waste water in the yarn dipping tank is completely discharged from the acid inlet / outlet.

[0036] Step 8, taking yarn:

[0037] After the yarn washing water is emptied, the tank cover is opened, and the yarn rod is taken out. The acid treatment of the high-silica glass fiber rope yarn is completed.

[0038] During the sulfuric acid treatment and the yarn washing, the driving motor rotates in the mode of rotating clockwise for 10 seconds and counterclockwise for 10 seconds.

[0039] The purpose of the present application is to overcome the problems of impurity accumulation causing rope yarn strength to decrease and acid gas unorganized emission endangering the health of operators in the prior art, and to provide an automatic rotating device for rope yarn acid treatment. The device realizes the relative movement of the rope yarn and the yarn rod through the mechanical rotating structure, solves the problem of impurity accumulation on the contact surface, simultaneously covers the tank cover during the treatment process to realize sealed treatment, eliminates unorganized emission of acid gas, and improves the internal quality of the rope yarn and the production efficiency.

[0040] To achieve the above-mentioned purpose, the present application adopts a sealed tank body, which is used to contain acid liquid and water washing liquid. The yarn rack is arranged in the acid tank, and the rope yarn is hung by the yarn rod. The driving motor drives each yarn rod to realize the reciprocating rotation clockwise / counterclockwise, thereby driving the yarn rod to reciprocate in the acid tank, realizing the relative movement between the rope yarn and the yarn rod, and completing the acid treatment of the rope yarn.

[0041] This invention achieves sealed treatment of the rope yarn through a tank cover, reducing acid gas escape, ensuring operational safety, and preventing external contamination. Automated control enables full automation of acid injection, circulation, discharge, and yarn rotation, minimizing manual intervention. Highly efficient and uniform treatment is achieved through dynamic rotation, ensuring full contact between the rope yarn and acid or water, improving treatment effectiveness. A corrosion-resistant structure, with key components made of fiberglass and PTFE, extends the equipment's lifespan. Energy-saving and environmentally friendly, the circulating overflow design reduces acid waste and lowers production costs. This device improves rope yarn processing efficiency while ensuring product quality stability, providing a reliable automated solution for the acid treatment of high-silica glass fiber rope yarn.

[0042] Compared with the prior art, the advantages of the present invention are as follows:

[0043] 1. In the traditional acid treatment process of high-silica fiberglass yarn, the yarn and the yarn rod remain relatively stationary, leading to the accumulation of a large amount of inorganic salts and other impurities filtered out by acid on the contact surface. Ordinary acid treatment equipment lacks an automatic rotation device, requiring manual kneading and turning to prevent clumping. However, manual turning of the yarn has disadvantages such as low processing efficiency, high inorganic salt content, and low yarn strength. The automatic rotation device designed in this invention uses a reversible motor to drive the reciprocating rotation of the yarn rod, causing relative movement between the yarn and the yarn rod. This effectively avoids the accumulation of inorganic salts and other impurities on the surface of the glass fiber yarn, significantly improving the uniformity of acid washing and thus significantly increasing the strength of the glass fiber yarn. Taking the treatment of dibasic sodium silicate glass fiber yarn of fixed length with sulfuric acid as an example, the experimental results are shown in Table 1.

[0044] Table 1. Detection values ​​of dibasic sodium silicate glass fiber yarn treated with sulfuric acid.

[0045]

[0046] 2. Similarly, traditional acid treatment processes rely on manual handling of the yarn, requiring multiple liftings of the yarn rack. However, acid treatment workshops are subject to long-term acid corrosion, leading to rust and flaking of the lifting equipment. This rust easily falls into the acid tank, significantly impacting the product's appearance, with red rust and black stains being the most common. This invention utilizes corrosion-resistant fiberglass and PTFE materials to ensure the long-term stability of the device in acidic environments. Through a sealed acid tank design and an automatically rotating yarn rod, the entire acid washing and washing process is sealed, effectively reducing the impact of external impurities introduced during open operations on the product's appearance. The test results are shown in Table 2.

[0047] Table 2 Appearance of High-Silica Glass Fiber Yarn at Length

[0048] Attached Figure Description

[0049] Figure 1This is a schematic diagram of the overall structure of the present invention.

[0050] Figure 2 This is a schematic diagram of the tank structure.

[0051] Figure 3 This is a structural schematic diagram of the beam frame assembly.

[0052] Figure 4 This is a cross-sectional view along the axial direction of the yarn bobbin.

[0053] Figure 5 This is a schematic diagram showing the connection between the motor and the transmission mechanism.

[0054] Figure 6 This is a schematic diagram of a set of transmission mechanisms.

[0055] Figure 7 for Figure 6 A sectional view.

[0056] Figure 8 This is a schematic diagram of the assembly of the drive shaft and gear.

[0057] Figure 9 This is a partial view of the yarn rod of this device.

[0058] In the diagram: 1. Tank body; 2. Beam frame assembly; 3. Transmission mechanism; 4. Yarn impregnation tank; 5. Overflow tank; 6. Transmission cavity; 7. Motor support base; 8. Drive motor; 9. Overflow port; 10. Acid inlet / outlet; 11. Yarn frame support column; 12. Partition plate; 13. Yarn rod frame; 14. Support plate; 15. Yarn rod frame fixing rod; 16. Support plate fixing rod; 17. Yarn rod; 18. Coupling; 19. Drive shaft; 20. Drive gear; 21. Bearing; 22. Shaft end connector. Detailed Implementation

[0059] This embodiment is an automatic rotating device for rope and yarn processing, including an acid pickling tank assembly, a beam frame assembly 2, and a transmission mechanism 3. The acid pickling tank assembly is the main structure that carries acid and washing liquid; the beam frame assembly 2 is a frame structure used to suspend the yarn rod and rope; the transmission mechanism 3 provides power to realize the automatic rotation of the yarn rod.

[0060] The beam frame assembly 2 is located in the yarn immersion tank 4 of the pickling tank assembly, and is placed on the yarn frame support columns 11 located at the four corners of the tank body. The top of the yarn rod frame of the beam frame assembly is lower than the upper end face of the inner wall of the overflow tank 5, so that the rope yarn hanging on the yarn rod can be completely immersed in the tank cavity.

[0061] The transmission mechanism 3 is located within the transmission cavity 6 of the trough, connecting each yarn rod 17 in the beam frame assembly to a transmission shaft in the transmission mechanism, and rotating under the drive of the transmission shaft. The beam frame assembly 2 is located within the impregnation trough.

[0062] The pickling tank assembly is the main structure of the device. It is square in shape and includes a tank body 1, a tank cover plate, a yarn impregnation tank 4, an overflow tank 5, a transmission cavity 6, a motor support base 7, and a yarn frame support column 11. The tank body 1 is divided into two chambers by a partition 12: the yarn impregnation tank 4 and the transmission cavity 6. Multiple transmission shaft mounting holes are evenly distributed on the upper end of the partition 12, and multiple transmission shaft mounting holes are also evenly distributed on the outer wall of the transmission cavity, ensuring that the transmission shaft mounting holes on the partition and the transmission shaft mounting holes on the outer wall of the transmission cavity are coaxial. The center distance between adjacent transmission shaft mounting holes satisfies the meshing of gears mounted on the transmission shafts. An overflow port 9 is located at the upper end of one side of the outer wall of the tank body, and an acid inlet / outlet port 10 is located at the lower end of the other side of the outer wall of the tank body. A U-shaped overflow tank 5 is machined on the three sides of the tank body, with the outer wall of the overflow tank 100mm higher than the inner wall. The overflow trough has a width d of 200 mm and a depth h of 400 mm. For example... Figure 4 As shown.

[0063] There is a yarn support column 11 at each of the four corners of the tank. There is a motor support 7 on the outer surface of the tank, and the motor support is located at one end outside the transmission cavity 6; the drive motor 8 is placed on the motor support, and the output shaft of the drive motor is fixedly connected to the drive shaft 19 in the transmission mechanism 3.

[0064] The lower surface of the tank cover plate has a groove that fits into the upper end of the tank wall plate; a fluororubber sealing gasket is placed in the groove.

[0065] The tank is made of fiberglass, with an acid and alkali resistance of 1-14 pH value, a tensile strength of 500 MPa, a flexural strength of 600 MPa, a surface roughness Ra of 2.8-3.2 μm, and an operating temperature of 10℃-100℃.

[0066] The beam frame assembly 2 is a frame structure, including a pair of yarn rod frames 13, a pair of support plates 14, two yarn rod frame fixing rods 15, two sets of support plate fixing rods 16, and multiple yarn rods 17. The pair of support plates 14 are two parallel vertical plates, each with a yarn rod frame fixing rod 15 on its upper end face. The pair of yarn rod frames 13 are also two parallel vertical plates, located at opposite ends of the support plates 14, with the lower surface of each yarn rod frame embedded in the yarn rod frame fixing rod 15 at its respective end. Each support plate has two vertically arranged through holes at both ends. One set of support plate fixing rods inserts its two ends into the through holes on each support plate to support and fix the two parallel support plates. The upper surfaces of the pair of yarn rod holders 13 are evenly distributed with arc-shaped grooves, which serve as yarn rod mounting slots. One end of each assembled yarn rod 17 is placed in a yarn rod mounting slot on the surface of one yarn rod holder, and the other end is placed in a yarn rod mounting slot on the surface of the other yarn rod holder. The yarn rods pass through drive shaft mounting holes in the slots and are connected to drive shafts located in the transmission chamber 6 via shaft end connectors 22. The shaft end connectors are cylindrical, with a square groove on their inner end face for connection to the yarn rod.

[0067] The transmission mechanism, located within the transmission cavity 6, includes a driving gear 20, a driving shaft 19, multiple driven gears, and multiple driven wheel drive shafts. One end of the driving shaft 19 and one end of each of the driven wheel drive shafts are respectively mounted in drive shaft mounting holes on the outer wall of the transmission cavity via couplings 18, while the other ends are mounted in drive shaft mounting holes on a partition plate via sliding bearings 21. The driving gear 20 is mounted on the driving shaft 19, and each driven gear is mounted on its respective driven wheel drive shaft, meshing with adjacent driven gears and with each driven gear itself. When the driving gear rotates under the drive of a motor, it in turn drives each driven gear to rotate.

[0068] In this embodiment, the transmission mechanism 3 drives each yarn rod to rotate, thereby achieving uniform processing of the yarn. The transmission gear is made of polytetrafluoroethylene (PTFE), which has corrosion-resistant and wear-resistant properties, ensuring long-term stable operation. The PTFE sliding bearing 21 is used to support and fix the drive shaft, which passes through the inner wall of the acid tank and connects to the yarn rod. Its PTFE material is corrosion-resistant and wear-resistant, and also has a certain degree of airtightness, reducing liquid seepage into the transmission cavity of the device. The shaft end connector 22 is made of PTFE, and its end is engraved with a square groove and connected to the yarn rod with a tenon and mortise structure, transmitting the power of the transmission mechanism to the yarn rod 17, so that the yarn rod and the yarn generate relative movement.

[0069] The beam frame, used to fix the yarn rods and yarns, is entirely cast from fiberglass, possessing excellent corrosion resistance and structural strength. Specifically, it includes: a yarn rod frame 13 and a support plate 14, forming the main frame and providing a stable support structure. The yarn rod frame fixing rod 15 and the support plate fixing rod 16 serve as reinforcement devices, enhancing overall rigidity and ensuring the beam frame can withstand the weight of the wet yarns after being soaked in acid water.

[0070] In this embodiment, the overflow tank 5 is located on the side of the impregnation tank and is used for the circulation and overflow of acid or washing solution. When the liquid level reaches the required height, the upper liquid overflows into the overflow tank 5 and is discharged through the overflow port 9, ensuring stable solution concentration and liquid level. The transmission chamber contains transmission gears and a transmission shaft, forming the core of the device's power transmission.

[0071] This embodiment also proposes a method for acid treatment of high-silica glass fiber rope yarn using the aforementioned automatic rotating device. The method includes a process of yarn loading—automatic acid feeding—sulfuric acid treatment—automatic acid discharge—automatic water feeding—circulating water soaking—automatic drainage—yarn removal. Specifically:

[0072] Step 1, apply yarn:

[0073] Hang the rope yarn evenly on the yarn rod 22; hang 6 to 8 rope yarns on each yarn rod. Place both ends of each yarn rod with rope yarns on the yarn rod groove on the upper surface of the yarn rod frame 13, and push the end of each yarn rod near the transmission cavity of the groove into the yarn rod slot on the end face of the shaft end connector to fix it.

[0074] Complete the yarn application.

[0075] Step 2, Automatic Acid Injection:

[0076] After the yarn loading is completed, the tank cover is closed, and the automatic acid inlet and outlet control system is started. A sulfuric acid solution with a concentration of 2 mol / L flows continuously into the yarn impregnation tank 4 from the bottom of the acid tank through the acid inlet / outlet 19 at a flow rate of 5 cubic meters per hour, and this flow rate is maintained until the process is completely finished.

[0077] Step 3, sulfuric acid treatment:

[0078] When the acid solution completely submerges the yarn frame, the drive motor 8 is activated. This drive motor rotates the drive gear 20, which in turn rotates each yarn rod via the shaft end connector 22, subjecting the yarn hanging on the yarn rods to sulfuric acid treatment; the treatment time is 3 hours. During treatment, the drive motor rotates clockwise for 10 seconds and counterclockwise for 10 seconds, ensuring that the yarn rods 22 and the yarn rotate relative to each other without tangling, thus ensuring uniform penetration of the acid solution into the yarn.

[0079] During the sulfuric acid treatment process, sulfuric acid solution with a concentration of 2 mol / L continuously flows in from the inlet / outlet 19 at a flow rate of 5 cubic meters per hour, while the upper layer of acid overflows into the overflow tank 5 and is discharged through the overflow port 9, maintaining a continuous overflow until the sulfuric acid treatment is completed.

[0080] Step 4, Automatic acid removal:

[0081] After the sulfuric acid treatment is completed, the drive motor 8 stops working, and the sulfuric acid solution in the yarn impregnation tank 4 is automatically and completely discharged from the inlet / outlet 19.

[0082] Step 5, Water intake:

[0083] After the sulfuric acid solution is completely discharged, tap water filtered by the filter is continuously injected into the yarn impregnation tank 4 from the inlet / outlet 19 at a flow rate of 10 cubic meters per hour, and this flow rate is maintained until the washing process is completely finished.

[0084] Step 6, Washing the yarn:

[0085] When the water completely submerges the yarn rack, the drive motor 8 is started. This drive motor rotates the drive gear 20, which in turn rotates each yarn rod via the shaft end connector 22, cleaning the attached yarn. The processing time is 3 hours. During processing, the drive motor rotates clockwise for 10 seconds and counterclockwise for 10 seconds, ensuring that the yarn rod 22 and the yarn rotate relative to each other without tangling, thus guaranteeing thorough and even cleaning of the yarn.

[0086] During the yarn washing process, filtered water continuously flows in from the inlet / outlet 19 at a flow rate of 10 cubic meters per hour, while the upper layer of water overflows into the overflow tank 5 and is discharged through the overflow port 9, maintaining a circulating overflow until the yarn washing is completed.

[0087] Step 7, Drainage:

[0088] After the washing is completed, the drive motor 8 stops operating, and the wastewater in the yarn soaking tank 4 is completely discharged from the inlet / outlet 19.

[0089] Step 8, take the yarn:

[0090] After the washing water has drained, open the tank cover and remove the yarn rod.

Claims

1. An automatic rotating device for acid treatment of high-silica glass fiber rope, characterized in that, It includes an acid pickling tank assembly, a beam frame assembly (2), and a transmission mechanism (3). The acid pickling tank assembly is the main structure that carries acid and washing liquid; the beam frame assembly is a frame structure used to suspend yarn rods and ropes; the transmission mechanism provides power to realize the automatic rotation of the yarn rods. The pickling tank assembly includes a tank body (1), a yarn impregnation tank (4), an overflow tank (5), a transmission cavity (6), a motor support base (7), and a yarn frame support column (11). The tank body is divided into the yarn impregnation tank (4) and the transmission cavity by a partition (12). Multiple transmission shaft mounting holes are evenly distributed on the upper end of the partition, and multiple transmission shaft mounting holes are also evenly distributed on the outer wall of the transmission cavity, ensuring that the transmission shaft mounting holes on the partition and the transmission shaft mounting holes on the outer wall of the transmission cavity are coaxial. The center distance between adjacent transmission shaft mounting holes satisfies the meshing of gears mounted on the transmission shaft. A U-shaped overflow tank (5) is machined on the wall panels of three sides of the tank body. The beam frame assembly (2) is located in the yarn impregnation tank (4) of the tank body, and the top of the yarn rod frame of the beam frame assembly is lower than the upper end face of the inner wall of the overflow tank, so that the rope yarn hanging on the yarn rod can be completely immersed in the tank cavity. The transmission mechanism (3) is located in the transmission cavity (6) of the groove, and each yarn rod (17) in the beam frame assembly is connected to each transmission shaft in the transmission mechanism and rotates under the drive of the transmission shaft.

2. The automatic rotating device for acid treatment of high-silica glass fiber rope as described in claim 1, characterized in that, The outer wall of the overflow channel is 100mm higher than the inner wall. The width d of the overflow channel is 200mm and the depth h is 400mm.

3. The automatic rotating device for acid treatment of high-silica glass fiber rope as described in claim 1, characterized in that, An overflow port (9) is located at the upper end of one side of the outer wall of the tank, and an acid inlet / outlet port (10) is located at the lower end of the other side of the outer wall of the tank. There is a yarn support column (11) at each of the four corners of the tank. There is a motor support seat (7) on the outer surface of the tank, and the motor support seat is located at one end outside the transmission cavity (6); the drive motor (8) is placed on the motor support seat, and the output shaft of the drive motor is fixedly connected to the drive shaft (19) in the transmission mechanism (3).

4. The automatic rotating device for acid treatment of high-silica glass fiber rope as described in claim 1, characterized in that, The tank is made of fiberglass, with an acid and alkali resistance of 1-14 pH value, a tensile strength of 500 MPa, a flexural strength of 600 MPa, a surface roughness Ra of 2.8-3.2 μm, and an operating temperature of 10℃-100℃.

5. The automatic rotating device for acid treatment of high-silica glass fiber rope as described in claim 1, characterized in that, The beam frame assembly (2) includes a pair of yarn rod frames (13), a pair of support plates (4), two yarn rod frame fixing rods (15), two sets of support plate fixing rods (16), and multiple yarn rods (17). The pair of support plates consists of two parallel vertical plates, each with a yarn rod frame fixing rod on its upper end face. The pair of yarn rod frames also consists of two parallel vertical plates, located at opposite ends of the support plates, with the lower surface of each yarn rod frame embedded in the yarn rod frame fixing rod at its respective end. Each support plate has two vertically arranged through holes at both ends. One set of support plate fixing rods inserts its two ends into the through holes on each support plate to support and fix the two parallel support plates.

6. The automatic rotating device for acid treatment of high-silica glass fiber rope as described in claim 5, characterized in that, The upper surfaces of the pair of yarn rod holders (13) are evenly distributed with arc-shaped grooves, which are yarn rod mounting slots. After assembly, one end of each yarn rod (17) is placed in the yarn rod mounting slot on the surface of one yarn rod holder, and the other end is also placed in the yarn rod mounting slot on the surface of the other yarn rod holder. The yarn rods pass through the drive shaft mounting holes on the slots and are connected to the drive shafts located in the drive chambers (6) through the shaft end connectors (22).

7. The automatic rotating device for acid treatment of high-silica glass fiber rope as described in claim 1, characterized in that, The transmission mechanism includes a driving gear (20), a driving shaft (19), multiple driven gears, and multiple driven wheel drive shafts. One end of the driving shaft and one end of each of the driven wheel drive shafts are respectively mounted in drive shaft mounting holes located on the outer wall of the transmission cavity via couplings (18), and the other end is mounted in drive shaft mounting holes located on a partition via sliding bearings (21). The driving gear is mounted on the driving shaft, and each driven gear is mounted on its respective driven wheel drive shaft, so that the driving gear meshes with the adjacent driven gear, and the driven gears mesh with each other. When the driving gear rotates under the drive of the drive motor, it in turn drives each driven gear to rotate.

8. A method for acid treatment of high-silica glass fiber rope yarn using the automatic rotating device described in claim 1, characterized in that, The specific process is as follows: Step 1, apply yarn: Hang the rope yarn evenly on the yarn rods; hang 6 to 8 rope yarns on each yarn rod. Step 2, Automatic Acid Injection: Start the automatic acid inlet and outlet control system to allow a 2 mol / L sulfuric acid solution to continuously flow into the yarn impregnation tank from the bottom of the acid tank at a flow rate of 5 cubic meters per hour, and maintain this flow rate until the acid treatment process is completed. Step 3, sulfuric acid treatment: Once the acid solution has completely submerged the yarn rack, the drive motor is started. This drive motor rotates each yarn rod through a transmission mechanism, treating the yarn hanging on each yarn rod with sulfuric acid; the treatment time is 3 hours. During the sulfuric acid treatment process, the sulfuric acid solution continuously flows into the yarn impregnation tank from the acid inlet / outlet, while the upper layer of acid overflows into the overflow tank and is discharged through the overflow outlet, maintaining a continuous overflow until the sulfuric acid treatment is completed. Step 4, Automatic acid removal: After the sulfuric acid treatment is completed, the drive motor stops working, and the sulfuric acid solution in the yarn impregnation tank (4) is automatically discharged completely from the inlet / outlet. Step 5, Water intake: After the sulfuric acid solution is completely drained, filtered tap water is continuously injected into the yarn soaking tank from the acid inlet / outlet at a flow rate of 10 cubic meters per hour, and this flow rate is maintained until the yarn washing process is over. Step 6, Washing the yarn: When the tap water completely submerges the yarn rack, start the drive motor to rotate each yarn rod and clean the hanging yarn; the processing time is 3 hours. During processing, the drive motor rotates clockwise for 10 seconds and counterclockwise for 10 seconds, so that the yarn rod and the yarn rotate relative to each other without tangling, ensuring that the yarn is cleaned thoroughly and evenly. Step 7, Drainage: After the washing process is complete, the drive motor stops operating, and the wastewater in the yarn soaking tank is completely discharged from the inlet / outlet. Step 8, take the yarn: After the washing water has drained, open the tank cover and remove the yarn rod. This completes the acid treatment of the high-silica glass fiber rope yarn.

9. The method for acid treatment of high-silica glass fiber rope yarn as described in claim 6, characterized in that, During the sulfuric acid treatment and yarn washing processes, the drive motor rotates in a pattern of 10 seconds clockwise and 10 seconds counterclockwise.

Images