A p-aramid spinning oil refining treatment equipment

Abstract

The present application relates to a kind of para aramid spinning oil refining treatment equipment, belong to oil agent processing technical field, solve the one of the problems of the existing technology feed quantity fluctuation, process matching difference, oil agent is easily polluted and batch processing consistency is insufficient.The present application includes oil agent conveying mechanism and processing mechanism;The oil agent conveying mechanism is set in the feed side of the processing mechanism, for supplying the oil agent to be processed to the processing mechanism;The oil agent conveying mechanism includes dosing conveying unit, and the dosing conveying unit is used for dosing conveying oil agent;The processing mechanism includes processing tank and inert gas input unit, and the inert gas input unit is used for passing into inert gas in the processing tank.The present application realizes that para aramid spinning oil agent dosing conveying and inert gas protection are synchronous, improves oil agent processing consistency, airtightness and overall operation efficiency.

Description

Technical Field

[0001] This invention relates to the field of spinning oil treatment technology, and in particular to a refining and treatment device for para-aramid spinning oil. Background Technology

[0002] Para-aramid spinning oil is a complex compound of various functional auxiliaries. It has high requirements for feeding accuracy, environmental cleanliness, and consistency of working conditions. It is a key auxiliary material to ensure the stability and uniform oiling effect of fiber spinning, drawing, and winding processes.

[0003] Existing oil refining equipment has functional defects, making it difficult to simultaneously achieve precise quantitative feeding and inert gas protection within the processing tank. This results in fluctuations in the feed rate, leading to inconsistent processing conditions for the same batch of oil and causing component deviations. Furthermore, the processing system lacks sufficient airtightness, allowing air, moisture, and impurities to easily intrude, causing oil oxidation and moisture absorption contamination, affecting oil quality and the uniformity of subsequent fiber oiling.

[0004] Traditional equipment involves independent and separate processes for oil delivery and inert gas input, requiring multiple independent drive structures. This results in poor process timing matching, delayed connections, low equipment integration, and redundant structures, limiting the degree of automation and overall processing efficiency.

[0005] In addition, traditional conveying structures lack fixed stroke constraints, the piston conveying stroke is inconsistent, the quantitative accuracy is poor, and they cannot be adapted to high-consistency pretreatment processes such as oil removal and degassing. Furthermore, open conveying of oils poses a high risk of contamination, and the batch management of materials is scattered, making it difficult to meet the needs of continuous and standardized production, and the process convenience and safety are insufficient.

[0006] In summary, there is an urgent need for a para-aramid spinning oil refining device that combines precise quantitative delivery, synchronous inert gas protection, simplified structure, and high degree of automation to solve the problems of low quantitative accuracy, poor process matching, easy oil contamination, and insufficient batch processing consistency in existing technologies. Summary of the Invention

[0007] Based on the above analysis, the present invention aims to provide a refining equipment for para-aramid spinning oil, in order to solve one of the problems of large fluctuations in feed rate, poor process matching, easy contamination of oil, and insufficient batch processing consistency in the prior art.

[0008] This invention provides a refining and treatment device for para-aramid spinning oil, comprising: an oil conveying mechanism and a treatment mechanism; The oil conveying mechanism is located on the feed side of the processing mechanism and is used to supply the oil to be processed to the processing mechanism; the oil conveying mechanism includes a metering conveying unit, which is used to meter the oil. The processing mechanism includes a processing tank and an inert gas input unit, wherein the inert gas input unit is used to introduce inert gas into the processing tank.

[0009] Furthermore, the quantitative delivery unit includes a driving component, a transmission assembly, and a reciprocating piston assembly. The driving component drives the reciprocating piston assembly to move through the transmission assembly, thereby realizing the quantitative pumping and delivery of the oil.

[0010] Furthermore, the reciprocating piston assembly includes a suction and feeding tube, in which a first piston and a second piston are slidably disposed, and a sealed volume cavity is formed between the first piston and the second piston.

[0011] Furthermore, the transmission assembly includes a columnar horizontal rotating rod, on which a first H-shaped rotating block and a second H-shaped rotating block are fixedly arranged in opposite directions at 180°. The first H-shaped rotating block drives the first piston to move; the second H-shaped rotating block drives the second piston to move.

[0012] Furthermore, the reciprocating piston assembly also includes a liquid delivery pipe and a liquid delivery pipe piston slidably disposed within the liquid delivery pipe, and the pressure feeding pipe is connected to the liquid delivery pipe through a pressure feeding pipe conduit.

[0013] Furthermore, the driving component is an electric push rod, which synchronously drives the first piston, the second piston, and the liquid delivery pipe piston via the transmission assembly.

[0014] Furthermore, the oil conveying mechanism includes an oil storage component, which includes an oil storage tank and a feeding pipe. The oil storage tank is connected to the pressure feeding pipe through the feeding pipe.

[0015] Furthermore, the inert gas input unit includes an inert gas storage tank, a vacuum pumping pipe, and a vacuum pumping pipe piston that is slidably disposed on the inner wall of the vacuum pumping pipe.

[0016] Furthermore, the vacuum extraction pipe is connected to the inert gas storage tank through a first extraction pipe, and the vacuum extraction pipe is connected to the processing tank through a second extraction pipe; both the first extraction pipe and the second extraction pipe are equipped with one-way valves.

[0017] Furthermore, an air vent is provided on the side wall of the processing tank.

[0018] Furthermore, when the first H-shaped rotating block and the second H-shaped rotating block rotate synchronously with the columnar horizontal rotating rod, they drive the first piston and the second piston to reciprocate in opposite directions or in opposite directions within the suction and feeding pipe.

[0019] Furthermore, the vacuum pumping tube piston operates synchronously with the first piston, the second piston, and the liquid delivery tube piston.

[0020] Furthermore, the vacuum pumping tube piston is connected to the transmission assembly, and the electric push rod drives the vacuum pumping tube piston via the transmission assembly.

[0021] Furthermore, the transmission assembly also includes a piston-shaped push-pull tube, a vertical block, a push-pull side plate of the vertical block, and a connecting vertical plate of the push-pull side plate.

[0022] A system for refining para-aramid spinning oil includes: para-aramid spinning oil refining equipment and an oil filtration device.

[0023] Furthermore, the oil filtration device includes: a feeding unit, a refining kettle, a gas replacement unit, and a tail gas recovery unit; the feeding unit, the refining kettle, the gas replacement unit, and the tail gas recovery unit are all connected in a sealed manner.

[0024] Furthermore, the oil filtration device also includes a transmission support assembly, which includes a drive motor and a transmission mechanism that is connected to the drive motor. The transmission mechanism is connected to the feeding unit, the gas replacement unit, and the exhaust gas recovery unit, respectively.

[0025] Furthermore, the feeding unit includes an oil storage tank, a guide pipe, and a conveying pipe connected in sequence. The discharge end of the conveying pipe is connected to the feed end of the refining kettle. The discharge end of the guide pipe is connected to the side wall of the conveying pipe. A sealing plug is slidably provided on the inner wall of the conveying pipe. The sealing plug slides back and forth on the inner wall of the conveying pipe to realize the connection and disconnection between the guide pipe and the conveying pipe.

[0026] Furthermore, the gas replacement unit includes a first gas suction cylinder, a second gas suction cylinder, a tail gas collection tank, and a protective gas storage tank; the first gas suction cylinder is connected to the refining kettle and the tail gas collection tank respectively, and the second gas suction cylinder is connected to the refining kettle and the protective gas storage tank respectively.

[0027] Furthermore, piston push rods are slidably connected to the inner walls of both the first and second gas suction cylinders.

[0028] Furthermore, the exhaust gas recovery unit includes an exhaust pipe, an extraction piston, and an exhaust gas extraction pipe. One end of the exhaust gas extraction pipe is connected to the top of the discharge box, and the other end of the exhaust gas extraction pipe is connected to the exhaust pipe. The extraction piston is slidably disposed on the inner wall of the exhaust pipe.

[0029] Furthermore, the transmission mechanism is connected to the sealing plug, the piston push rod, and the vacuum piston respectively.

[0030] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects: (1) By setting an oil conveying mechanism with a quantitative conveying unit on the feed side of the processing mechanism and setting an inert gas input unit in the processing mechanism, the present invention realizes the stable quantitative supply of para-aramid spinning oil and the establishment of an inert protective atmosphere in the processing tank. It can effectively reduce the fluctuation of feed volume and the mixing of external air, moisture and impurities, so that the processing conditions of the same batch of oil are consistent, and improve the stability of oil composition, the uniformity of subsequent oiling and the overall refining efficiency.

[0031] (2) The present invention enables the quantitative conveying unit and the inert gas input unit to be driven by the same driving component and work together to synchronously complete the oil delivery and atmosphere replacement, which can make the oil supply and the inert protective atmosphere in the tank establish a time sequence match, reduce the process connection delay and deviation; at the same time, it simplifies the equipment power structure, reduces the configuration of independent driving components, reduces human operation intervention and error, shortens the process connection time, and improves the equipment integration, operation stability and the automation level and overall efficiency of oil refining.

[0032] (3) This invention uses an electric push rod with a fixed stroke to drive the reciprocating motion of each group of pistons in conjunction with a transmission assembly. The movement amplitude of all pistons remains uniform, so that the amount of oil delivered in a single delivery is constant, achieving precise quantitative feeding. This ensures that the processing conditions of each batch of para-aramid spinning oil are consistent, effectively alleviating the deviation of oil composition caused by feed fluctuations. It is beneficial to maintain consistent process conditions in the pretreatment of oil removal of light components, degassing and stabilization, and improves the uniformity of subsequent oiling processes. By setting up a quantitative conveying unit including a pressure feeding pipe, a liquid delivery pipe and a corresponding piston structure, the oil is conveyed in a closed pipeline and cavity throughout the process, reducing contact with the external environment, effectively reducing the risk of pollution, stabilizing the performance of the oil, and with the centralized storage structure, it not only facilitates batch management and continuous production of the oil, but also simplifies the operation process and improves the convenience of process implementation and production safety.

[0033] (4) By connecting the oil refining equipment and the oil filtration device in series, the entire process of oil refining, from quantitative conveying and inert gas protection refining to closed filtration and two-stage degassing, is fully automated. The system avoids oil exposure and contamination and gas mixing caused by material transfer between processes through a fully closed design. The gas replacement and tail gas recovery functions of the filtration device work synergistically with the front-end inert gas input to further remove residual gas and comprehensively improve the cleanliness and stability of the oil.

[0034] In this invention, the above-described technical solutions can be combined with each other to achieve more preferred combinations. Other features and advantages of this invention will be set forth in the following description, and some advantages may become apparent from the description or be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained from what is particularly pointed out in the description and drawings. Attached Figure Description

[0035] The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Throughout the drawings, the same reference numerals denote the same parts. Figure 1 This is a schematic diagram of the refining equipment for para-aramid spinning oil in Embodiment 1 of the present invention; Figure 2 This is a schematic diagram of the processing mechanism according to Embodiment 1 of the present invention; Figure 3 This is a schematic diagram of the oil conveying frame according to Embodiment 1 of the present invention; Figure 4 This is a schematic diagram of the explosive decomposition of the oil conveying frame in Embodiment 1 of the present invention; Figure 5 for Figure 4 Enlarged structural diagram at point A in the middle; Figure 6 This is a schematic diagram of the explosive decomposition of the processing mechanism in Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the oil storage assembly according to Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the oil filtration device in Embodiment 2 of the present invention; Figure 9 This is a schematic diagram of the feeding unit in Embodiment 2 of the present invention; Figure 10 This is one of the structural schematic diagrams of the transmission support assembly in Embodiment 2 of the present invention; Figure 11 for Figure 10 Enlarged structural diagram at point B; Figure 12 This is a second schematic diagram of the transmission support assembly in Embodiment 2 of the present invention; Figure 13 This is the third schematic diagram of the transmission support assembly in Embodiment 2 of the present invention; Figure 14 This is a schematic diagram of the filter support structure in Embodiment 2 of the present invention; Figure 15 This is a schematic diagram of the exhaust gas recovery unit in Embodiment 2 of the present invention.

[0036] Figure label: 1-Oil conveying mechanism; 11-Oil conveying frame; 1101-Base plate; 1102-L-shaped connecting plate; 1103-Liquid delivery pipe sleeve; 1104-Connecting base plate; 1105-Support plate; 1106-Convex guide block; 1107-Pressure feeding pipe connecting block; 1108-Side upright plate; 1109-L-shaped side connecting arm; 1110-L-shaped support base plate; 1111-Guide side plate; 12-Oil storage assembly; 121-Oil storage tank; 1211-Feeding pipe; 122-L-shaped side connecting plate; 123-Oil storage tank connecting plate; 131-Pressure feeding pipe; 1311-First piston; 1312-Second piston; 1313-Pressure feeding pipe; 132 - Liquid delivery pipe; 1321- Liquid delivery pipe piston; 1322- Liquid delivery pipe; 141- Columnar horizontal rotating rod; 1411- First H-shaped rotating block; 1412- Second H-shaped rotating block; 15- Electric push rod; 1601- Push plate; 1602- Push-pull vertical plate; 1603- Triangular connecting side plate; 1604- Push-pull side plate; 1605- Rack; 1606- Columnar rotating rod connecting block; 1607- First gear; 1608- Rotating push-pull rod; 1609- Columnar connecting horizontal rod; 1610- First piston push-pull rod; 1611- Second piston push-pull rod; 1612- Columnar connecting rod; 1613- Push plate; 1614- Columnar push-pull rod; 1615- Liquid delivery pipe piston push-pull rod; 2-Processing mechanism; 21-Processing tank; 22-Inert gas storage tank; 23-Vacuum extraction pipe; 231-First extraction pipe; 232-Second extraction pipe; 233-Vacuum extraction pipe piston; 234-Piston cylindrical push-pull pipe; 235-Upright block; 236-Upright block push-pull side plate; 237-Push-pull side plate connecting upright plate; 24-Processing tank connecting platform; 241-Vacuum extraction pipe connecting block; 242-Concave connecting plate; 3-Refining kettle; 31-First refining kettle pipe; 32-Second refining kettle pipe; 33-Receiving pipe; 34-Discharge box; 35-Material discharge port; 4-Feeding unit; 41-Oil storage tank; 42-Guide pipe; 43-Conveying pipe; 431-Sealing plug; 432-Conveying pipe connecting sleeve; 5-Gas replacement unit; 51-First gas suction cylinder; 511-First pipeline; 512-Second pipeline; 513-Piston push rod; 52-Exhaust gas collection tank; 53-Protective gas storage tank; 54-Second gas suction cylinder; 6-Exhaust gas recovery unit; 61-Exhaust pipe; 62-Suction piston; 63-Exhaust gas extraction pipe; 64-Residual gas recovery cylinder; 651-Guide side plate; 652-Exhaust pipe connecting plate; 653-Lifting horizontal plate; 654-Side lifting upright; 655-Slide groove rotating side plate; 656-Sliding block; 657-Rotating diagonal rod; 658-Residual gas recovery cylinder connecting sleeve; 7-Transmission support assembly; 711-H-type side plate; 712-Motor mounting plate; 713-L-type guide side plate; 714-Side plate; 715-Rotor mounting seat; 716-Side connecting upright; 717-L-type connecting upright; 718-C-type connecting plate; 721-Tail gas collection tank mounting plate; 722-Protective gas storage tank mounting plate; 723-Rear connecting plate; 724-Oil storage tank connecting seat; 731-Drive motor; 732-Turntable; 733-Abutting block; 734 - Elliptical slide plate; 735- Convex push-pull plate; 736- Rack column; 737- Side block; 738- Second gear; 739- Rotating rod; 740- Rotary disk; 741- Traction block; 742- Rotating pull rod; 743- Swing arm; 744- Rotating rod; 745- Convex lifting block; 746- Push-pull plate; 747- Sealing plug connecting rod; 751- Filter bracket; 752- Refining kettle collar; 753- L-shaped auxiliary side plate; 754- Bottom connecting rod. Detailed Implementation

[0037] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which constitute a part of the present invention and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0038] Example 1: To address the technical problems of inconsistent feed rates, insufficient establishment of a protective atmosphere within the treatment tank, and the introduction of external air, moisture, and impurities into existing para-aramid spinning oils, which affect the stability of the oil composition and the consistency of subsequent oiling processes, a specific embodiment of the present invention discloses a para-aramid spinning oil refining treatment device, such as... Figure 1 and Figure 2 As shown, it includes: an oil conveying mechanism 1 and a processing mechanism 2.

[0039] The oil conveying mechanism 1 is located on the feed side of the processing mechanism 2 and is used to supply the oil to be processed to the processing mechanism 2. The oil conveying mechanism 1 includes a quantitative conveying unit, which is used to quantitatively convey the oil.

[0040] The processing unit 2 includes a processing tank 21 and an inert gas input unit, which is used to introduce inert gas into the processing tank 21.

[0041] By setting an oil conveying mechanism 1 with a quantitative conveying unit on the feed side of the processing mechanism 2 and setting an inert gas input unit in the processing mechanism 2, a stable quantitative supply of para-aramid spinning oil and the establishment of an inert protective atmosphere in the processing tank 21 are achieved. This can effectively reduce fluctuations in feed volume and the mixing of external air, moisture and impurities, keep the processing conditions of the same batch of oil consistent, and improve the stability of oil composition, uniformity of subsequent oiling and overall refining efficiency.

[0042] Furthermore, to address the technical issues of poor quantitative accuracy, inconsistent batch processing due to feed fluctuations, uneven oiling during spinning, and insufficient sealing of the conveying and storage structure, which makes the oil susceptible to contamination and hinders batch management and continuous production, the quantitative conveying unit includes a drive component, a transmission component, and a reciprocating piston component. The drive component drives the reciprocating piston component through the transmission component to achieve quantitative pumping and conveying of the oil.

[0043] like Figures 3-5 As shown, the reciprocating piston assembly includes a suction and feeding pipe 131, in which a first piston 1311 and a second piston 1312 are slidably disposed, forming a closed volume cavity between the first piston 1311 and the second piston 1312.

[0044] The reciprocating piston assembly also includes a liquid delivery pipe 132 and a liquid delivery pipe piston 1321 slidably disposed in the liquid delivery pipe 132. The pressure feeding pipe 131 is connected to the liquid delivery pipe 132 through the pressure feeding pipe 1313.

[0045] The driving component is an electric push rod 15, which synchronously drives the first piston 1311, the second piston 1312 and the liquid delivery pipe piston 1321 via a transmission assembly.

[0046] A fixed-stroke electric push rod, in conjunction with a transmission assembly, synchronously drives the reciprocating motion of each set of pistons. The uniformity of all piston movements ensures a constant oil dosage per delivery, achieving precise quantitative feeding. This ensures consistent processing conditions for each batch of para-aramid spinning oil, effectively mitigating oil composition deviations caused by feed fluctuations. It also helps maintain consistent process conditions during the removal of light components, degassing, and stabilization pretreatment of the oil, improving the uniformity of subsequent oiling processes. By setting up a quantitative delivery unit including a pressure-feeding pipe 131, a liquid delivery pipe 132, and corresponding piston structures, the oil is transported entirely within a closed pipeline and cavity, reducing contact with the external environment, effectively lowering the risk of contamination, and stabilizing oil performance. Combined with a centralized storage structure, this not only facilitates batch management and continuous production of the oil but also simplifies the workflow, improving the convenience of process implementation and production safety.

[0047] like Figure 2 and Figure 6 As shown, the inert gas input unit includes an inert gas storage tank 22, a vacuum extraction pipe 23, and a vacuum extraction pipe piston 233 that slides on the inner wall of the vacuum extraction pipe 23.

[0048] The vacuum extraction pipe 23 is connected to the inert gas storage tank 22 through the first extraction pipe 231, and the vacuum extraction pipe 23 is connected to the processing tank 21 through the second extraction pipe 232; both the first extraction pipe 231 and the second extraction pipe 232 are equipped with one-way valves.

[0049] The one-way valve on the first extraction pipe 231 only allows inert gas to flow from the inert gas storage tank 22 to the vacuum extraction pipe 23; the one-way valve on the second extraction pipe 232 only allows gas to flow from the vacuum extraction pipe 23 to the processing tank 21.

[0050] The piston 233 of the vacuum extraction tube slides back and forth inside the vacuum extraction tube 23, causing the vacuum extraction tube 23 to alternately form negative pressure and positive pressure. When a negative pressure environment is formed, the inert gas in the inert gas storage tank 22 will be drawn into the vacuum extraction tube 23; when a positive pressure environment is formed, the inert gas in the vacuum extraction tube 23 will be forced into the processing tank 21 to establish a low-oxygen environment.

[0051] By setting up an inert gas input unit and a piston-sealed feeding structure in conjunction with a quantitative feeding unit, a stable low-oxygen protective atmosphere can be quickly built in the treatment tank 21, effectively reducing the risk of oxidation, moisture absorption, and contamination of the oil during the treatment process due to contact with air and moisture.

[0052] Furthermore, to address the issue of asynchronous and misaligned timing between the oil delivery and inert gas input processes, which leads to delayed establishment of the protective atmosphere within the processing tank 21 and affects the oil refining quality and processing efficiency, both the quantitative delivery unit and the inert gas input unit are driven by electric push rods 15. The transmission assembly is also connected to the vacuum extraction pipe piston 233, which reciprocates along the inner wall of the vacuum extraction pipe 23. Driven by the transmission assembly, the vacuum extraction pipe piston 233 moves synchronously with the first piston 1311, the second piston 1312, and the liquid delivery pipe piston 1321, thereby simultaneously completing the oil delivery and atmosphere replacement.

[0053] By having the quantitative conveying unit and the inert gas input unit driven by the same drive unit and working in conjunction to synchronously complete the oil delivery and atmosphere replacement, the timing of oil supply and inert protective atmosphere in the tank can be matched, reducing process connection delays and deviations. At the same time, it simplifies the equipment power structure, reduces the configuration of independent drive components, reduces human operation intervention and errors, shortens process connection time, and improves the equipment operation stability and the automation level and overall efficiency of oil refining.

[0054] like Figures 3-5 As shown, the transmission assembly includes: a push plate 1601, a push-pull vertical plate 1602, a columnar push-pull rod 1614, a convex guide rear block 1106, a push-pull side plate 1604, a rack 1605, a first gear 1607, a rotating push-pull rod 1608, a columnar connecting crossbar 1609, a first piston push-pull rod 1610, a second piston push-pull rod 1611, a columnar connecting rod 1612, a push plate 1613, a columnar push-pull rod 1614, a liquid delivery pipe piston push-pull rod 1615, a columnar horizontal rotating rod 141, a first H-shaped rotating block 1411, and a second H-shaped rotating block 1412.

[0055] The output end of the electric push rod 15 is fixedly connected to the push plate 1601; the push plate 1601 is fixedly connected to the push-pull upright plate 1602, the push-pull upright plate 1602 is fixedly provided with a triangular connecting side plate 1603, the push-pull upright plate 1602 is fixedly connected to the push-pull side plate 1604 through the triangular connecting side plate 1603, and the push-pull side plate 1604 is provided with a rack 1605.

[0056] A first gear 1607 is fixedly mounted on the columnar horizontal rotating rod 141; a rack 1605 meshes with the first gear 1607. A first H-shaped rotating block 1411 and a second H-shaped rotating block 1412 arranged in opposite directions at 180° are fixedly mounted on the columnar horizontal rotating rod 141. The first H-shaped rotating block 1411 drives the first piston 1311 to move; the second H-shaped rotating block 1412 drives the second piston 1312 to move.

[0057] Specifically, the first H-shaped rotating block 1411 is connected to the columnar connecting crossbar 1609 via the rotating push-pull rod 1608, and the columnar connecting crossbar 1609 is connected to the first piston 1311 via the first piston push-pull rod 1610; the second H-shaped rotating block 1412 is connected to the second piston 1312 via the second piston push-pull rod 1611.

[0058] When the first H-shaped rotating block 1411 and the second H-shaped rotating block 1412 rotate synchronously with the columnar horizontal rotating rod 141, they drive the first piston 1311 and the second piston 1312 to perform reciprocating motions in opposite directions or in opposite directions within the suction and feeding pipe 131, thereby achieving negative pressure suction or positive pressure pushing.

[0059] Both sides of the columnar connecting crossbar 1609 are fixedly connected to columnar connecting rods 1612. Both sets of columnar connecting rods 1612 are fixedly connected to push plates 1613. The push plates 1613 are fixedly connected to columnar push-pull rods 1614. The columnar push-pull rods 1614 slide through the convex guide block 1106 and are fixed to the push-pull upright plate 1602. The push-pull upright plate 1602 is connected to the liquid delivery pipe piston 1321 via the liquid delivery pipe piston push-pull rod 1615.

[0060] When refining the para-aramid spinning oil, the oil to be treated is first loaded into the oil storage tank. The electric push rod 15 is then started. The electric push rod 15 drives the first piston 1311, the second piston 1312, and the liquid delivery pipe piston 1321 to reciprocate through the transmission assembly. When the first piston 1311 and the second piston 1312 move in opposite directions, a negative pressure environment is formed in the suction and feeding pipe 131. The para-aramid spinning oil in the oil storage tank 121 is sucked into the suction and feeding pipe 131 through the feeding pipe 1211. When the first piston 1311 and the second piston 1312 move towards each other, the pressure in the suction and feeding pipe 131 is increased to form a positive pressure environment, and the oil enters the liquid delivery pipe 132. The reciprocating motion of the liquid delivery pipe piston 1321 quantitatively delivers the oil in the liquid delivery pipe 132 into the treatment tank 21.

[0061] Furthermore, to address the problem of disordered timing of independent drive of various mechanisms, quantitative feeding, and inert gas input in the device, which easily leads to a decrease in the oil refining effect, such as... Figure 2 and Figure 6 As shown, the transmission assembly also includes: a piston-shaped push-pull tube 234, a vertical block 235, a vertical block push-pull side plate 236, and a push-pull side plate connecting vertical plate 237.

[0062] The push-pull side plate connecting upright plate 237 is fixedly connected to the push-pull side plate 1604. The upright block 235 is fixedly connected to the push-pull side plate connecting upright plate 237 via the upright block push-pull side plate 236. The upright block 235 is fixedly connected to the vacuum pumping pipe piston 233 via the piston column push-pull tube 234.

[0063] While the electric push rod 15 drives the quantitative feeding, the push-pull side plate 1604 in the transmission assembly also drives the vacuum pumping pipe piston 233 to slide back and forth along the inner wall of the vacuum pumping pipe 23 to realize the introduction of inert gas.

[0064] like Figures 3-7 As shown, the oil conveying mechanism 1 includes an oil conveying frame 11 and an oil storage assembly 12.

[0065] The oil conveying frame 11 includes a base plate 1101, an L-shaped connecting plate 1102, a liquid delivery pipe sleeve 1103, a connecting base plate 1104, a support plate 1105, a convex guide block 1106, a suction and feeding pipe connecting block 1107, a side upright plate 1108, an L-shaped side connecting arm 1109, an L-shaped support base plate 1110, and a guide side plate 1111.

[0066] The electric push rod 15 is fixed to the base plate 1101. L-shaped connecting plates 1102 are fixed on both sides of the base plate 1101, and the L-shaped connecting plates 1102 are fixedly connected to the liquid delivery tube sleeve 1103. The base plate 1101 is also fixedly provided with a connecting base plate 1104, which is used to connect with the processing mechanism 2.

[0067] The liquid delivery pipe 132 is fixedly installed on the inner wall of the liquid delivery pipe sleeve 1103, and the front end of the liquid delivery pipe 132 is connected to the liquid delivery pipe 1322.

[0068] A support plate 1105 is fixedly connected to both sides of the base plate 1101. A convex guide block 1106 and a pressure feeding pipe connecting block 1107 are fixedly connected to the support plate 1105. The pressure feeding pipe 131 is fixedly installed on the top of the pressure feeding pipe connecting block 1107.

[0069] Each tray 1105 has a columnar rotating rod connecting block 1606 fixedly installed on both sides, and a columnar horizontal rotating rod 141 is rotatably connected to the two columnar rotating rod connecting blocks 1606 on each tray 1105.

[0070] A first H-shaped rotating block 1411 and a second H-shaped rotating block 1412 are fixedly installed on the columnar horizontal rotating rod 141. The first H-shaped rotating block 1411 is located between the two columnar rotating rod connecting blocks 1606 on each support plate 1105, and the second H-shaped rotating block 1412 is located at the end of the columnar horizontal rotating rod 141 away from the first gear 1607.

[0071] Side uprights 1108 and L-shaped side connecting arms 1109 are fixedly connected to both sides of the base plate 1101, respectively. The bottom of the side uprights 1108 is fixedly connected to an L-shaped support base plate 1110 via the L-shaped side connecting arms 1109. A guide side plate 1111 is fixedly connected to the side uprights 1108. The bottom of the push-pull side plate 1604 is mounted on the top of the guide side plate 1111. The push-pull side plate 1604 and the guide side plate 1111 slide together, and the guide side plate 1111 guides the movement of the push-pull side plate 1604.

[0072] The oil storage assembly 12 includes an oil storage tank 121 and a supply pipe 1211. The oil storage tank 121 is connected to a pressure feeding pipe 131 through the supply pipe 1211 to realize the temporary storage and supply of oil.

[0073] The oil storage assembly 12 also includes an L-shaped side connecting plate 122 and an oil storage tank connecting plate 123. The L-shaped side connecting plate 122 is fixedly connected to the side upright plate 1108, and the oil storage tank connecting plate 123 is fixedly connected to the L-shaped side connecting plate 122. The top of the oil storage tank connecting plate 123 is fixedly connected to the oil storage tank 121.

[0074] The processing unit 2 includes a processing tank connecting platform 24, on which a processing tank 21 and an inert gas storage tank 22 are fixedly mounted.

[0075] The processing tank connecting platform 24 is fixedly connected to the vacuum pumping pipe 23 via the vacuum pumping pipe connecting block 241; the processing tank connecting platform 24 is fixedly connected to the L-shaped support base plate 1110 via the concave connecting plate 242.

[0076] An air vent is provided on the side wall of the treatment tank 21 to discharge the original air inside the tank.

[0077] The processing tank 21 has a processing tank outlet (not shown in the figure), which is used to discharge the oil processed by the processing tank 21.

[0078] The working process of this invention is as follows: During operation, first load the para-aramid spinning oil into the oil storage tank 121, and then start the electric push rod 15.

[0079] During the backward movement of the electric push rod 15: the electric push rod 15 pushes the push plate 1601 to move backward, the push plate 1601 drives the two push-pull upright plates 1602 to move backward, the two push-pull upright plates 1602 move backward and drive the columnar push-pull rod 1614 to slide within the convex guide block 1106, and at the same time drive the push-pull side plate 1604 to move backward, the push-pull side plate 1604 drives the rack 1605 to move synchronously, the rack 1605 drives the first gear 1607 to rotate through meshing transmission, causing the columnar horizontal rotating rod 141 to rotate, the rotation of the columnar horizontal rotating rod 141 drives the first H-shaped rotating block 1411 and the second H-shaped rotating block 1412 to rotate. 12. Rotation: The rotation of the first H-shaped rotating block 1411 drives the first piston 1311 to slide inside the suction and feeding pipe 131. The rotation of the second H-shaped rotating block 1412 drives the second piston 1312 to slide inside the suction and feeding pipe 131. The first piston 1311 and the second piston 1312 move in opposite directions, forming a negative pressure environment inside the suction and feeding pipe 131. The para-aramid spinning oil in the oil storage tank 121 is sucked into the suction and feeding pipe 131 through the feeding pipe 1211. At the same time, the push-pull side plate 1604 drives the vacuum pumping pipe piston 233 to move backward, so that the vacuum pumping pipe 23 sucks in the inert gas storage tank 22.

[0080] During the forward movement and reset of the electric push rod 15: the first piston 1311 and the second piston 1312 move towards each other, the pressure inside the suction and feeding pipe 131 is increased to form a positive pressure environment, the oil enters the liquid delivery pipe 132, the liquid delivery pipe piston 1321 moves forward, so that the oil is quantitatively delivered into the processing tank 21 through the liquid delivery pipe 1322; at the same time, the vacuum suction pipe piston 233 moves forward, so that the inert gas is pushed into the processing tank 21.

[0081] Example 2: To address the issues in existing technologies where refined oils still contain trace amounts of flocculent byproducts and suspended impurities, and are prone to air bubbles during transport, Embodiment 2 of this invention discloses a refined oil system for para-aramid spinning, comprising: the refined oil equipment for para-aramid spinning described in Embodiment 1, and an oil filtration device.

[0082] The processing tank 21 has a processing tank outlet, and the oil filtration device includes a feeding unit 4. The processing tank outlet is connected to the feeding unit 4 through a connecting pipeline.

[0083] To address the problem of external gases mixing into the system and affecting filtration efficiency, such as... Figures 8-10 As shown, the oil filtration device also includes: a refining kettle 3, a gas replacement unit 5, and a tail gas recovery unit 6; the feeding unit 4, the refining kettle 3, the gas replacement unit 5, and the tail gas recovery unit 6 are all connected in a sealed manner.

[0084] The refining vessel 3 is used to filter the spinning oil agent after treatment by the processing unit 2. The gas replacement unit 5 is used to extract residual gas from the refining vessel 3 and to introduce protective gas into the refining vessel 3. The tail gas recovery unit 6 is used to extract residual gas from the discharge end of the refining vessel 3. By setting up the gas replacement unit 5 and the tail gas recovery unit 6, a two-stage exhaust unit is formed. The two work together to make up for the degassing blind spot in the terminal pipeline of a single exhaust, which can effectively improve the degassing effect.

[0085] To address the issue of low filtration efficiency caused by external air entering the system during the feeding process, the feeding unit 4 includes an oil storage tank 41, a guide pipe 42, and a conveying pipe 43 connected in sequence. The inlet end of the conveying pipe 43 is located on the side wall of the pipe body, and the outlet end of the conveying pipe 43 is connected to the inlet end of the refining vessel 3. A sealing plug 431 is slidably installed on the inner wall of the conveying pipe 43. The sealing plug 431 slides back and forth on the inner wall of the conveying pipe 43 to control the opening and closing of the guide pipe 42 and the inlet end of the conveying pipe 43, thereby realizing the intermittent and closed feeding of oil from the processing unit 2 to the refining vessel 3. By controlling the opening and closing of the inlet of the conveying pipe 43 through the sealing plug 431, the closed intermittent feeding of oil can be achieved, reducing the intrusion of external air, the mixing of air bubbles, and the loss of volatile components.

[0086] The discharge port of the treatment tank is connected to the oil storage tank 41 via a connecting pipeline. The oil processed by the treatment tank 21 is discharged from the discharge port of the treatment tank and sent into the oil storage tank 41 through the connecting pipeline.

[0087] The bottom of the refining vessel 3 is connected to a receiving pipe 33, the bottom of the receiving pipe 33 is connected to a discharge box 34, and the discharge box 34 is fixedly connected to a material discharge port 35.

[0088] To address the low extraction efficiency of existing extraction units, the gas replacement unit 5 includes a first gas suction cylinder 51, a second gas suction cylinder 54, a tail gas collection tank 52, and a protective gas storage tank 53. The first gas suction cylinder 51 is connected to both the refining vessel 3 and the tail gas collection tank 52, and is used to extract residual gas from the refining vessel 3 and its connected filtration area and introduce it into the tail gas collection tank 52. The second gas suction cylinder 54 is connected to both the refining vessel 3 and the protective gas storage tank 53, and is used to introduce protective gas from the protective gas storage tank 53 into the refining vessel 3 and its connected filtration area.

[0089] By constructing two independent gas paths through the first gas suction cylinder 51 and the second gas suction cylinder 54 in conjunction with the tail gas collection tank 52 and the protective gas storage tank 53, the replacement efficiency of the gas in the refining kettle 3 can be improved, the content of impurity gas in the refining kettle 3 can be effectively reduced, and the oil filtration effect can be improved.

[0090] The outer walls of the refining vessel 3 are fixedly connected to a first refining vessel pipe 31 and a second refining vessel pipe 32. The first refining vessel pipe 31 is connected to a first gas suction cylinder 51, and the second refining vessel pipe 32 is connected to a second gas suction cylinder 54. The first gas suction cylinder 51 is connected to a tail gas collection tank 52 through a first pipe 511, and the second gas suction cylinder 54 is connected to a protective gas storage tank 53 through a second pipe 512.

[0091] One-way valves (not shown in the figure) are installed on the first refining vessel pipe 31, the second refining vessel pipe 32, the first pipe 511, and the second pipe 512. The one-way valve on the first refining vessel pipe 31 only allows the flow from the refining vessel 3 to the first gas suction cylinder 51. The one-way valve on the second refining vessel pipe 32 only allows the flow from the second gas suction cylinder 54 to the refining vessel 3. The one-way valve on the first pipe 511 only allows the flow from the first gas suction cylinder 51 to the tail gas collection tank 52. The one-way valve on the second pipe 512 only allows the flow from the protective gas storage tank 53 to the second gas suction cylinder 54.

[0092] Furthermore, piston push rods 513 are slidably connected to the inner walls of both the first gas suction cylinder 51 and the second gas suction cylinder 54. The sliding of the piston push rods 513 enables the extraction of residual gas in the filtration area and the replenishment of protective gas.

[0093] like Figure 15 As shown, the exhaust gas recovery unit 6 includes an exhaust pipe 61, a suction piston 62, and an exhaust gas extraction pipe 63. One end of the exhaust gas extraction pipe 63 is connected to the top of the discharge box 34, and the other end is connected to the exhaust pipe 61. The suction piston 62 is slidably disposed on the inner wall of the exhaust pipe 61. When the suction piston 62 slides upward, a negative pressure is formed inside the exhaust pipe 61, and the residual gas in the discharge box 34 is drawn into the exhaust pipe 61 through the exhaust gas extraction pipe 63.

[0094] Furthermore, the exhaust gas recovery unit 6 also includes a residual gas recovery cylinder 64, which is connected to the exhaust pipe 61. A one-way valve is provided between the residual gas recovery cylinder 64 and the exhaust pipe 61, with the direction of conduction from the exhaust pipe 61 to the residual gas recovery cylinder 64. A one-way valve is provided on the exhaust gas extraction pipe 63, with the direction of conduction from the discharge box 34 to the exhaust pipe 61. When the extraction piston 62 slides downward, a positive pressure is formed in the exhaust pipe 61, which guides the residual gas in the exhaust pipe 61 into the residual gas recovery cylinder 64.

[0095] By combining sealed feeding, gas replacement, and tail-end degassing, the system's sealing and degassing effects can be enhanced, reducing the interference of air bubbles on the filtration and conveying process, reducing clogging and filtration resistance caused by air bubbles adhering to the filter media, maintaining stable filtration flux, improving filtration accuracy and efficiency, improving the continuity and stability of oil discharge, alleviating problems such as unstable oil supply, nozzle clogging, and uneven oil application at subsequent oiling stations, and reducing the escape of air bubbles at the end, thus improving the on-site working environment.

[0096] Furthermore, to address the issue of independent drive of various mechanisms in the device, resulting in disordered timing of exhaust gas extraction, feeding, and filling / exhausting actions, which can easily lead to bubble retention and reduced filtration efficiency.

[0097] The oil filtration device also includes a transmission support assembly 7, which includes a drive motor 731 and a transmission mechanism that is connected to the drive motor 731. The transmission mechanism is connected to the sealing plug 431 and drives the sealing plug 431 to slide back and forth along the inner wall of the delivery pipe 43.

[0098] The transmission mechanism is also connected to two piston rods 513, and drives the two piston rods 513 to slide back and forth along the inner walls of the first gas suction cylinder 51 and the second gas suction cylinder 54, respectively.

[0099] The transmission mechanism is also connected to the suction piston 62, which drives the suction piston 62 to slide back and forth along the inner wall of the exhaust pipe 61.

[0100] The exhaust gas recovery unit 6 shares a power source with the front-end feeding and gas extraction processes via a transmission mechanism. This ensures that the movement of the extraction piston 62 in the exhaust gas recovery unit 6 is synchronized with the opening and closing of the sealing plug 431 and the extraction operation of the piston push rod 513. The secondary exhaust action is synchronized with the feeding rhythm, continuously extracting residual gas from the discharge box 34, forming a two-stage synchronous degassing process with the front-end primary exhaust. Combined with a fully sealed pipeline structure, this reduces the infiltration of outside air from the discharge end, lowering the probability of new bubble formation. The integrated transmission layout eliminates the need for additional drive components, simplifying the overall equipment structure and ensuring coordinated and unified movement. This contributes to the smooth completion of the end-of-line degassing operation, further optimizing the quality of oil delivery and reducing the interference of bubbles on subsequent processing steps.

[0101] like Figures 10-13 As shown, the transmission mechanism includes: a turntable 732, a stop block 733, an elliptical slide plate 734, a convex push-pull plate 735, a rack column 736, a second gear 738, a rotating rod 739, a rotating disk 740, a traction block 741, a rotating pull rod 742, a swing arm 743, a rotating rod 744, a convex lifting block 745, a push-pull plate 746, and a sealing plug connecting rod 747.

[0102] Specifically, the transmission support assembly 7 also includes two H-shaped side plates 711, with a motor mounting plate 712 between the two H-shaped side plates 711. A drive motor 731 is mounted on the motor mounting plate 712, and the output end of the drive motor 731 is fixedly connected to the turntable 732. An abutment block 733 is eccentrically provided on the outer edge of the turntable 732. The abutment block 733 is slidably embedded in the elliptical groove of the elliptical slide plate 734. A convex push-pull plate 735 is provided on the top of the elliptical slide plate 734, and rack columns 736 are provided on both the left and right sides of the convex push-pull plate 735. An L-shaped guide side plate 713 is provided on the H-shaped side plate 711, and the rack columns 736 are slidably connected to the L-shaped guide side plate 713. The L-shaped guide side plate 713 provides a guiding function for the rack columns 736, and a side block 737 is fixedly provided at the bottom of the rack columns 736.

[0103] Each H-shaped side plate 711 has a set of side plate structures and a rotating rod mounting seat 715 on both sides. Each set of side plate structures includes two side plates 714. The rotating rod 739 passes through the two sets of side plate structures and the two rotating rod mounting seats 715, and is rotatably mounted on the two sets of side plate structures and the two rotating rod mounting seats 715. A rotating disk 740 is provided between the two side plates 714 of each side plate structure. The rotating disk 740 is fixedly connected to the rotating rod 739. A traction block 741 is fixedly connected to the outer edge of the rotating disk 740. A rotating pull rod 742 is rotatably connected to the traction block 741. A swing arm 743 is rotatably connected to the top and bottom of the two side plates 714 of each side plate structure. The ends of the top and bottom swing arms 743 away from the side plates 714 are movably connected to the side connecting rod 716. The end of the rotating pull rod 742 away from the traction block 741 is rotatably connected to the inner wall of the bottom swing arm 743. A second gear 738 is fixedly connected to one end of the rotating rod 739. The second gear 738 meshes with the rack column 736.

[0104] The swing arm 743 located at the bottom is rotatably connected to a rotating rod 744. The bottom of the rotating rod 744 is rotatably connected to a convex lifting block 745. The convex lifting block 745 is fixedly connected to a push-pull plate 746. The bottom of the push-pull plate 746 is fixedly connected to a sealing plug connecting rod 747. The bottom end of the sealing plug connecting rod 747 is fixedly connected to a sealing plug 431. The outer wall of the sealing plug 431 is slidably disposed on the inner wall of the conveying pipe 43.

[0105] When refining and filtering the para-aramid spinning oil, the oil to be filtered is first added to the oil storage tank 41. The drive motor 731 is then started, and its output drives the turntable 732 to rotate. The rotation of the turntable 732 causes the abutment 733 fixed to its front side to move in a circular motion, which in turn drives the elliptical slide plate 734 to move up and down reciprocally. The up and down movement of the elliptical slide plate 734 pushes the convex push-pull plate 735 to move synchronously. The movement of the convex push-pull plate 735 causes the rack columns 736 on both sides to slide up and down under the guidance of the L-shaped guide side plate 713. The up and down sliding of the rack columns 736 drives the second gear 738 meshing with them to rotate. The rotation drives the rotating rod 739 and the rotating disk 740 fixed on it to rotate together. The rotation of the rotating disk 740 transmits the motion to the swing arm 743 through the traction block 741 and the rotating pull rod 742, so that the swing arm 743 swings under the constraint of the side connecting upright 716. The swing of the swing arm 743 drives the rotating rod 744 to move up and down. The up and down movement of the rotating rod 744 pushes the convex lifting block 745 to slide up and down in the middle of the H-shaped side plate 711. The sliding of the convex lifting block 745 drives the sealing plug 431 to slide up and down in the conveying pipe 43 through the push-pull plate 746 and the sealing plug connecting rod 747, so as to control the opening and closing of the conveying pipe 43, thereby achieving the effect of sealing feeding.

[0106] An L-shaped connecting plate 717 is fixedly installed on each of the front and rear sides of the H-shaped side plate 711. A C-shaped connecting plate 718 is provided between the two L-shaped connecting plates 717. The two ends of the C-shaped connecting plate 718 are fixedly connected to the two L-shaped connecting plates 717 respectively. A conveying pipe connecting sleeve 432 is fixedly installed on the C-shaped connecting plate 718. The conveying pipe connecting sleeve 432 is sealed to the upper end of the conveying pipe 43 to prevent oil leakage and further improve the sealing performance of the device. The first gas suction cylinder 51 and the second gas suction cylinder 54 are respectively located on the outside of the two C-shaped connecting plates 718. The piston push rod 513 is fixedly connected to the bottom of the convex lifting block 745.

[0107] While the drive motor 731 drives the delivery pipe 43 to open and close, the up-and-down movement of the rotating rod 744 in the transmission mechanism also drives the two piston push rods 513 to reciprocate in the first gas suction cylinder 51 and the second gas suction cylinder 54 respectively, so as to realize the extraction of residual gas in the filtration area and the replenishment of protective gas.

[0108] Specifically, when the piston rod 513 moves upward, a negative pressure is formed inside the first gas suction cylinder 51, and the residual gas in the refining vessel 3 and related connecting pipes is extracted into the inner cavity of the first gas suction cylinder 51 through the first refining vessel pipe 31. When the piston rod 513 moves downward, a positive pressure is formed inside the first gas suction cylinder 51, and the residual gas in the inner cavity of the first gas suction cylinder 51 is discharged into the tail gas collection tank 52 through the first pipe 511. When the piston rod 513 moves upward, a negative pressure is formed inside the second gas suction cylinder 54, and the protective gas in the protective gas storage tank 53 is extracted into the inner cavity of the second gas suction cylinder 54 through the second pipe 512. When the piston rod 513 moves downward, a positive pressure is formed inside the second gas suction cylinder 54, and the protective gas in the inner cavity of the second gas suction cylinder 54 is introduced into the refining vessel 3 through the second refining vessel pipe 32.

[0109] Under the combined effect of intermittent feeding and gas extraction in the sealed conveying pipe 43, the para-aramid spinning oil enters the conveying pipe 43 from the oil storage tank 41 through the guide pipe 42. After being filtered by the refining kettle 3, it is discharged from the material outlet 35 of the discharge box 34 for use in subsequent oiling stations. By controlling the up-and-down sliding speed of the rack column 736, the conveying cycle and the exhaust cycle can be further adjusted, thereby improving the oil filtration quality and the stability of the supply.

[0110] Furthermore, such as Figure 14 As shown, a filter bracket 751 is provided at the bottom of the transmission support assembly 7, and a refining vessel collar 752 is fixedly connected to the filter bracket 751. The refining vessel 3 is fixedly installed on the inner wall of the refining vessel collar 752.

[0111] The filter support 751 includes two L-shaped auxiliary side plates 753. The top of the L-shaped auxiliary side plate 753 is fixedly provided with a tail gas collection tank mounting plate 721, and the bottom of the L-shaped auxiliary side plate 753 is fixedly provided with a bottom connecting rod 754. The inner sides of the two L-shaped auxiliary side plates 753 are fixedly connected to the refining kettle collar 752, and the inner wall of the refining kettle collar 752 is fixedly connected to the refining kettle 3. The discharge box 34 is fixedly connected to the inner sides of the two L-shaped auxiliary side plates 753.

[0112] The exhaust gas collection tank 52 is mounted on the exhaust gas collection tank mounting plate 721. A rear connecting plate 723 is fixedly mounted on the H-shaped side plate 711. A protective gas storage tank mounting plate 722 is fixedly mounted on the rear connecting plate 723. The protective gas storage tank 53 is mounted on the protective gas storage tank mounting plate 722. An oil storage tank connecting seat 724 is fixedly connected to the exhaust gas collection tank mounting plate 721. The oil storage tank 41 is mounted on the top of the oil storage tank connecting seat 724.

[0113] like Figure 15As shown, the transmission mechanism also includes: a rotating inclined rod 657, a sliding block 656, a sliding groove rotating side plate 655, a side lifting upright rod 654, and a lifting horizontal plate 653.

[0114] The exhaust gas recovery unit 6 includes two guide side plates 651, and an exhaust pipe connecting plate 652 is provided between the two guide side plates 651. An exhaust pipe 61 is fixedly connected to the middle of the inner wall of the exhaust pipe connecting plate 652. An air extraction piston 62 is slidably provided on the inner wall of the exhaust pipe 61. A lifting horizontal plate 653 is fixedly connected to the top of the air extraction piston 62. Side lifting uprights 654 are fixedly provided on both sides of the lifting horizontal plate 653. The side lifting uprights 654 are slidably connected to the inner side of the guide side plates 651. A sliding groove rotating side plate 655 is rotatably connected to the top of the side lifting uprights 654. A sliding block 656 is slidably connected to the inner side of the sliding groove rotating side plate 655. A rotating inclined rod 657 is fixedly connected to the inner end of the sliding block 656. The top of the rotating inclined rod 657 is rotatably connected to the inner side of the side block 737.

[0115] The bottom of the guide side plate 651 is fixedly connected to the outside of the two bottom connecting rods 754. The two sides of the outer wall of the residual gas recovery cylinder 64 are fixedly connected to the residual gas recovery cylinder connecting sleeves 658. The left and right sides of the two residual gas recovery cylinder connecting sleeves 658 are fixedly connected to the inside of the two bottom connecting rods 754.

[0116] While the drive motor 731 drives the conveying pipe 43 to open and close, the rack column 736 moves up and down and drives the side block 737 to move up and down synchronously. When the side block 737 moves up and down, it pulls the two rotating inclined rods 657 that are rotatably connected to it. Since the other end of the rotating inclined rod 657 is fixed on the sliding block 656, and the sliding block 656 is slidably connected to the inside of the sliding side plate 655 of the slide, the movement of the rotating inclined rod 657 will drive the sliding block 656 to slide inside the sliding side plate 655 of the slide, thereby causing the sliding side plate 655 of the slide to swing. The swing of the sliding side plate 655 of the slide will drive the side lifting column 654 to slide up and down inside the guide side plate 651. The up and down sliding of the side lifting column 654 will cause the lifting horizontal plate 653 to move up and down synchronously. The movement of the lifting horizontal plate 653 will drive the suction piston 62 to slide up and down on the inner wall of the exhaust pipe 61.

[0117] The working process of the para-aramid spinning oil refining system in this embodiment is as follows: First, the oil to be treated is loaded into the oil storage tank 121. The electric push rod 15 is started, and the oil is metered into the treatment tank 21 through the metering conveying unit. At the same time, the inert gas input unit simultaneously introduces inert gas into the treatment tank 21 to complete the refining treatment of the oil.

[0118] The oil processed by the treatment tank 21 is discharged through the tank outlet and sent to the oil storage tank 41 through the connecting pipeline. The drive motor 731 is started, and its output drives the turntable 732 to rotate. The rotation of the turntable 732 causes the abutment 733 fixed to its front side to move in a circular motion, which in turn drives the elliptical slide plate 734 to move up and down reciprocally. The up and down movement of the elliptical slide plate 734 pushes the convex push-pull plate 735 to move synchronously. The movement of the convex push-pull plate 735 causes the rack columns 736 on both sides to slide up and down under the guidance of the L-shaped guide side plate 713. The up and down sliding of the rack columns 736 drives the second gear 738 meshing with them to rotate. The rotation of the second gear 738 drives the rotating rod 739 and the rotating disk 740 fixed on it to rotate together. The rotation of the rotating disk 740 transmits motion to the swing arm 743 through the traction block 741 and the rotating rod 742, causing the swing arm 743 to swing under the constraint of the side connecting rod 716. The swing of the swing arm 743 drives the rotating rod 744 to move up and down. The up and down movement of the rotating rod 744 pushes the convex lifting block 745 to slide up and down in the middle of the H-shaped side plate 711. The sliding of the convex lifting block 745 drives the sealing plug 431 to slide up and down in the conveying pipe 43 through the push-pull plate 746 and the sealing plug connecting rod 747, so as to control the opening and closing of the conveying pipe 43, thereby achieving the effect of sealing and feeding material from the processing mechanism 2 to the refining kettle 3.

[0119] At the same time, the up-and-down movement of the rotating rod 744 also drives the two piston push rods 513 to reciprocate in the first gas suction cylinder 51 and the second gas suction cylinder 54 respectively, so as to realize the extraction of residual gas in the filtration area and the replenishment of protective gas.

[0120] Under the combined effect of intermittent feeding and gas extraction in the sealing conveying pipe 43, the treated para-aramid spinning oil enters the conveying pipe 43 from the oil storage tank 41 through the guide pipe 42. After being filtered by the refining kettle 3, it is discharged from the material outlet 35 of the discharge box 34 for use in subsequent oiling stations.

[0121] At the same time, the two rack columns 736 drive the side blocks 737 to move up and down, pull the rotating inclined rod 657, and make the sliding block 656 slide in the sliding side plate 655 of the chute. The sliding side plate 655 swings and drives the side lifting column 654 to slide up and down on the inner side of the guide side plate 651, so that the lifting horizontal plate 653 drives the suction piston 62 to slide up and down on the inner wall of the exhaust pipe 61, extracting the residual gas in the discharge box 34 and introducing it into the residual gas recovery cylinder 64, realizing the end-of-pipe deep degassing.

[0122] This embodiment connects the para-aramid spinning oil refining equipment from Embodiment 1 with an oil filtration device to form a complete para-aramid spinning oil refining system. This system achieves fully automated processing of the oil from quantitative delivery and inert gas-protected refining to closed filtration and two-stage degassing. The fully enclosed design of this system avoids oil exposure contamination and gas mixing caused by material transfer between processes, ensuring the continuity and consistency of oil quality. The gas replacement unit 5 and tail gas recovery unit 6 of the oil filtration device work in synergistically with the front-end inert gas input to further remove residual gas, comprehensively improving the cleanliness and stability of the oil. The oil filtration device adopts an integrated drive design, using a single drive motor 731 to simultaneously achieve sealed feeding, exhaust, and protective gas replenishment, simplifying power configuration and improving system reliability and automation. Simultaneously, the timing matching and linkage control of the refining and filtration processes ensure that the oil processing volume matches the filtration throughput, maintaining stable operation of continuous production and improving overall processing efficiency and batch consistency of the oil.

[0123] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention.

Claims

1. A refining and treatment device for para-aramid spinning oil, characterized in that, include: Oil delivery mechanism (1) and processing mechanism (2); The oil conveying mechanism (1) is located on the feed side of the processing mechanism (2) and is used to supply the oil to be processed to the processing mechanism (2); the oil conveying mechanism (1) includes a quantitative conveying unit, which is used to quantitatively convey the oil. The processing mechanism (2) includes a processing tank (21) and an inert gas input unit, the inert gas input unit being used to introduce inert gas into the processing tank (21).

2. The equipment for refining para-aramid spinning oil according to claim 1, characterized in that: The quantitative delivery unit includes a drive component, a transmission component, and a reciprocating piston assembly. The drive component drives the reciprocating piston assembly to move through the transmission component, thereby realizing the quantitative pumping and delivery of the oil.

3. The equipment for refining para-aramid spinning oil according to claim 2, characterized in that: The reciprocating piston assembly includes a pressure feeding tube (131), in which a first piston (1311) and a second piston (1312) are slidably disposed, and a closed volume cavity is formed between the first piston (1311) and the second piston (1312).

4. The equipment for refining para-aramid spinning oil according to claim 3, characterized in that: The transmission assembly includes a columnar horizontal rotating rod (141), on which a first H-shaped rotating block (1411) and a second H-shaped rotating block (1412) are fixedly arranged in opposite directions at 180°. The first H-shaped rotating block (1411) drives the first piston (1311) to move; the second H-shaped rotating block (1412) drives the second piston (1312) to move.

5. The equipment for refining para-aramid spinning oil according to claim 4, characterized in that: The reciprocating piston assembly also includes a liquid delivery pipe (132) and a liquid delivery pipe piston (1321) slidably disposed in the liquid delivery pipe (132). The pressure feeding pipe (131) is connected to the liquid delivery pipe (132) through a pressure feeding pipe (1313).

6. The equipment for refining para-aramid spinning oil according to claim 5, characterized in that: The driving component is an electric push rod (15), which synchronously drives the first piston (1311), the second piston (1312) and the liquid delivery pipe piston (1321) via the transmission assembly.

7. The refining equipment for para-aramid spinning oil as described in claim 6, characterized in that: The oil conveying mechanism (1) includes an oil storage component (12), which includes an oil storage tank (121) and a feeding pipe (1211). The oil storage tank (121) is connected to the pressure feeding pipe (131) through the feeding pipe (1211).

8. The equipment for refining para-aramid spinning oil according to any one of claims 1-7, characterized in that: The inert gas input unit includes an inert gas storage tank (22), a vacuum extraction pipe (23), and a vacuum extraction pipe piston (233) that slides on the inner wall of the vacuum extraction pipe (23).

9. The equipment for refining para-aramid spinning oil according to claim 8, characterized in that: The vacuum extraction pipe (23) is connected to the inert gas storage tank (22) through the first extraction pipe (231), and the vacuum extraction pipe (23) is connected to the processing tank (21) through the second extraction pipe (232); both the first extraction pipe (231) and the second extraction pipe (232) are equipped with one-way valves.

10. A system for refining para-aramid spinning oil, comprising the para-aramid spinning oil refining equipment as described in any one of claims 1-9 and an oil filtration device.

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