White oil separation and recovery device

Abstract

The utility model provides a white oil separation and recovery device. The white oil separation and recovery device comprises an extraction mechanism, a white oil recovery mechanism and an extract liquor recovery mechanism, the extraction mechanism comprises an extraction main body piece; the white oil recovery mechanism comprises a first pipeline part and a white oil recovery part, one end of the first pipeline part is communicated with the position, close to the top, of the extraction main body part, and the other end of the first pipeline part is communicated with the white oil recovery part; the extraction liquid recovery mechanism comprises a second pipeline part and an extraction liquid recovery part, one end of the second pipeline part is communicated with the position, close to the bottom, of the extraction main body part, and the other end of the second pipeline part is communicated with the extraction liquid recovery part; the first pipeline part sucks white oil on the upper layer of the extraction stock solution to the white oil recovery part, and the second pipeline part sucks extraction liquid on the lower layer of the extraction stock solution to the extraction liquid recovery part. According to the method, white oil on the material can be removed in an extraction mode through the extraction liquid, the white oil and the extraction liquid can be separated and recycled respectively, the treatment difficulty is lowered, waste of the white oil and the extraction liquid is avoided, and the production cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of polymer material production equipment, in particular to a white oil separation and recovery device. Background Art

[0002] In the field of polymer material processing, white oil plays a pivotal role. By adding white oil, the polymer material plasticization can be effectively promoted, and the fluidity, dispersibility and processing performance of the polymer material can be improved. For example, in the preparation of ultra-high molecular weight polyethylene, a large amount of white oil is needed to prepare the processing stock solution, and these white oils will eventually be prepared together with the polymer powder to form the jelly raw material, but the jelly raw material at this time contains a large amount of white oil. Most of the existing polymer material production equipment uses dichloromethane as an extractant to extract and separate the white oil in the jelly raw material, thereby obtaining a polymer jelly material that can be used for processing. Among them, a large amount of extraction waste liquid containing dichloromethane will be generated, and dichloromethane is volatile and toxic. Therefore, the use of dichloromethane increases the requirements and difficulty of equipment and operation. At the same time, the volatilization of dichloromethane and the waste of dichloromethane will cause great harm to the environment and production personnel. If a non-volatile ionic liquid is used as the extraction liquid, due to the high price of the ionic liquid and the inability of existing polymer material production equipment to effectively separate the white oil and the extraction liquid in the extraction waste liquid, the extraction waste liquid is usually discharged directly, resulting in a large amount of waste of ionic liquid and white oil, and increasing production costs. Utility Model Content

[0003] In view of the deficiencies in the prior art, the present application provides a white oil separation and recovery device.

[0004] A white oil separation and recovery device disclosed in the present application comprises: an extraction mechanism, a white oil recovery mechanism and an extraction liquid recovery mechanism; the extraction mechanism comprises an extraction main body, and the extraction main body contains an extraction stock solution; the white oil recovery mechanism comprises a first pipeline member and a white oil recovery member, one end of the first pipeline member is connected to a position near the top of the extraction main body, and the other end of the first pipeline member is connected to the white oil recovery member; the extraction liquid recovery mechanism comprises a second pipeline member and an extraction liquid recovery member, one end of the second pipeline member is connected to a position near the bottom of the extraction main body, and the other end of the second pipeline member is connected to the extraction liquid recovery member; the extraction stock solution is statically separated and stratified in the extraction main body, the first pipeline member sucks the white oil in the upper layer of the extraction stock solution to the white oil recovery member, and the second pipeline member sucks the extraction liquid in the lower layer of the extraction stock solution to the extraction liquid recovery member.

[0005] Preferably, the white oil recovery mechanism further includes a third pipeline component, the white oil recovery component includes a white oil static tank and a white oil storage tank, the other end of the first pipeline component is connected to the white oil static tank, and the white oil storage tank is connected to the white oil static tank through the third pipeline component.

[0006] Preferably, the extract recovery mechanism further comprises an extract filter and a fourth pipe member, the other end of the second pipe member is connected to the extract filter, and the extract recovery member is connected to the extract filter via the fourth pipe member.

[0007] Preferably, the extraction liquid recovery component is connected to the extraction main component.

[0008] Preferably, the extract recovery mechanism further comprises a pressurizing element, which is connected to the extract filter element and acts on the extract filter element to pressurize the extract filter element.

[0009] Preferably, the extraction mechanism also includes a plurality of first guide members, which are arranged in sequence and at intervals in the extraction main body, the guide ends of the first guide members are immersed in the extraction stock solution, and the guiding directions of adjacent first guide members are opposite, and an extraction channel is formed in the extraction main body; when the material passes through the extraction main body for extraction, the material moves up and down synchronously in the extraction channel.

[0010] Preferably, the white oil separation and recovery device also includes a cleaning mechanism, which includes a cleaning main body and a spray cleaning part. The feed inlet of the cleaning main body is connected to the discharge port of the extraction main body. The spray cleaning part is arranged on the top of the cleaning main body, and the working end of the spray cleaning part faces the material in the cleaning main body.

[0011] Preferably, the cleaning mechanism also includes a plurality of second guide members, which are arranged alternately and sequentially on two opposite inner walls of the cleaning main body in the vertical direction, wherein the guiding direction of the second guide members on one inner wall is opposite to the guiding direction of the second guide members on the other inner wall, and a cleaning channel is formed in the cleaning main body; when the material passes through the cleaning main body for cleaning, the material synchronously moves back and forth in the horizontal direction in the cleaning channel.

[0012] Preferably, the white oil separation and recovery device also includes a cleaning liquid circulation mechanism, which includes a cleaning liquid storage tank, a distillation reactor, a condensation pipe, a cleaning liquid collecting tank, a fifth pipe member and a sixth pipe member. The cleaning liquid storage tank is connected to the spray cleaning member, and the cleaning liquid storage tank is connected to the cleaning main body member through the fifth pipe member. Both ends of the sixth pipe member are respectively connected to the cleaning liquid storage tank and the distillation reactor, one end of the condensation pipe is connected to the top of the distillation reactor, and the other end of the condensation pipe is connected to the cleaning liquid collecting tank.

[0013] Preferably, the white oil separation and recovery device also includes a drying mechanism, the feed port of the drying mechanism is connected to the discharge port of the cleaning main body, the drying mechanism has a drying operation area, and the material is dried in the drying operation area to remove the cleaning liquid.

[0014] The beneficial effect of the present application is that since the density of the white oil in the extraction liquid is lower than that of the extracting liquid, and the white oil and the extracting liquid are not soluble in each other, the extraction liquid in the extraction main body will be stratified, and the white oil will float on the upper layer of the extracting liquid. Since one end of the first pipe part is connected to the position near the top of the extraction main body, the first pipe part can suck the white oil located in the upper layer of the extraction liquid to the white oil recovery part for recovery, and the second pipe part connected to the position near the bottom of the extraction main body sucks the extracting liquid located in the lower layer to the extracting liquid recovery part for recovery, so that not only can the white oil on the fiber filaments be removed by extracting the extracting liquid, but also the white oil and the extracting liquid can be separated and recovered separately, reducing the difficulty of handling the extraction waste liquid, avoiding environmental pollution caused by improper treatment of the extracting liquid and causing harm to the health of production personnel, and at the same time, it can also realize the recycling and reuse of the white oil and the extracting liquid, avoiding the waste of white oil and the extracting liquid, and saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0016] Figure 1 Schematic diagram of a white oil separation and recovery device in an embodiment;

[0017] Figure 2 Schematic diagram of the structure of the extraction mechanism, the cleaning mechanism and the drying mechanism in the embodiment;

[0018] Figure 3 Schematic diagram of the structure of the extraction liquid recovery mechanism in the embodiment;

[0019] Figure 4 It is a structural schematic diagram of the white oil recovery mechanism in the embodiment;

[0020] Figure 5 Schematic diagram of the structure of the cleaning liquid circulation mechanism in the embodiment.

[0021] Reference numerals:

[0022] 1. Extraction mechanism; 11. Extraction main body; 111. Heater; 112. Ultrasonic generator; 12. First guide member; 2. White oil recovery mechanism; 21. First pipeline member; 22. White oil recovery member; 221. White oil standing tank; 222. White oil storage tank; 23. Third pipeline member; 3. Extraction liquid recovery mechanism; 31. Second pipeline member; 32. Extraction liquid recovery member; 33. Extraction liquid filter member; 331. Quartz sand filter kettle; 332. Bag filter kettle; 34. Fourth pipeline member Pipe parts; 351, flushing pipeline; 352, flushing device; 4, cleaning mechanism; 41, cleaning main body; 42, spray cleaning part; 43, second guide part; 5, cleaning liquid circulation mechanism; 51, cleaning liquid storage tank; 52, distillation reactor; 53, condensation pipeline; 54, cleaning liquid collecting tank; 55, fifth pipeline part; 56, sixth pipeline part; 57, heating device; 58, extraction liquid storage tank; 59, vacuum pump; 6, drying mechanism; 7, traction mechanism; 100, material. DETAILED DESCRIPTION

[0023] The following will disclose multiple embodiments of the present application with drawings. For the purpose of clear description, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the present application. In other words, in some embodiments of the present application, these practical details are not necessary. In addition, in order to simplify the drawings, some conventional structures and components will be depicted in a simple schematic manner in the drawings.

[0024] It should be noted that all directional indications such as up, down, left, right, front, back... in the embodiments of the present application are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture as shown in the accompanying drawings. If the specific posture changes, the directional indication will also change accordingly.

[0025] In addition, in the present application, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present application. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present application.

[0026] In order to further understand the application content, features and effects of the present application, the following embodiments are cited and described in detail with reference to the accompanying drawings.

[0027] Reference Figure 1 and Figure 2 , Figure 1 is a schematic diagram of a white oil separation and recovery device in an embodiment, Figure 2 Schematic diagram of the structure of the extraction mechanism, the cleaning mechanism and the drying mechanism in the embodiment. The white oil separation and recovery device in the embodiment includes an extraction mechanism 1, a white oil recovery mechanism 2 and an extraction liquid recovery mechanism 3. The extraction mechanism 1 includes an extraction main body 11, and the extraction main body 11 contains an extraction liquid. The white oil recovery mechanism 2 includes a first pipe member 21 and a white oil recovery member 22, one end of the first pipe member 21 is connected to a position near the top of the extraction main body 11, and the other end of the first pipe member 21 is connected to the white oil recovery member 22. The extraction liquid recovery mechanism 3 includes a second pipe member 31 and an extraction liquid recovery member 32, one end of the second pipe member 31 is connected to a position near the bottom of the extraction main body 11, and the other end of the second pipe member 31 is connected to the extraction liquid recovery member 32. The extraction liquid is statically layered in the extraction main body 11, the first pipe member 21 sucks the white oil in the upper layer of the extraction liquid to the white oil recovery member 22, and the second pipe member 31 sucks the extraction liquid in the lower layer of the extraction liquid to the extraction liquid recovery member 32.

[0028] The white oil separation and recovery device in this embodiment is applied to the preparation of natural polymer materials (such as ultra-high molecular weight polyethylene). In this embodiment, the material 100 is ultra-high molecular weight polyethylene fiber filaments, hereinafter referred to as fiber filaments. After the preliminary preparation of the fiber filaments, the fiber filaments contain a lot of white oil. The fiber filaments are pulled into the extraction main body 1 by the pulling action of the pulling mechanism 7. The extraction main body 1 contains an extraction liquid (wherein the extraction liquid is a low eutectic solvent represented by an ionic liquid, such as 1-ethyl-3-methylimidazolium ethyl sulfate, 1-ethyl-3-methylimidazolium tetrafluoroborate, 1-ethyl-3-methylimidazolium nitrate, etc.). After the fiber filaments are immersed in the extraction liquid, the extraction liquid will replace the white oil in the fiber filaments to achieve the removal of the white oil in the fiber filaments. The extraction stock solution in this embodiment refers to the liquid formed by the mixture of white oil and the extraction liquid. When the white oil in the extraction liquid reaches a predetermined concentration, the extraction work is stopped. Since the density of the white oil in the extraction liquid is lower than that of the extracting liquid, and the white oil and the extracting liquid are not soluble in each other, the extraction liquid in the extraction main body 11 will be stratified after standing, and the white oil will float on the upper layer of the extracting liquid. Since one end of the first pipe member 21 is connected to the position near the top of the extraction main body 11, the first pipe member 21 can suck the white oil located in the upper layer of the extraction liquid to the white oil recovery member 22 for recovery, and the second pipe member 31 connected to the position near the bottom of the extraction main body 11 sucks the extracting liquid located in the lower layer to the extracting liquid recovery member 32 for recovery. In this way, not only can the white oil on the fiber filaments be removed by extracting the extracting liquid, but also the white oil and the extracting liquid can be separated and recovered separately, which reduces the difficulty of handling the extraction liquid and avoids environmental pollution and physical damage to production personnel caused by improper handling of the extracting liquid. Specifically, the traction mechanism 7 is an existing traction roller mechanism, which pulls the fiber filaments to move horizontally and pass through the extraction main body 1 for extraction.

[0029] Re-reference Figure 2 Preferably, the extraction main body 11 is an extraction tank, in which there is an extraction liquid for extracting the fiber filaments to remove the white oil thereon, and a heater 111 and an ultrasonic generator 112 are provided in the extraction tank, and the heater 111 is used to heat the extraction liquid in the extraction tank, and the extraction effect of the extraction liquid is improved by heating the extraction liquid to a suitable temperature. The ultrasonic generator 112 releases ultrasonic waves to the fiber filaments to improve the extraction effect.

[0030] Re-reference Figure 2Preferably, the extraction mechanism 1 further includes a plurality of first guide members 12, which are arranged in sequence and spaced apart in the extraction main body 11, and the guide ends of the first guide members 12 are immersed in the extraction stock solution, and the guide directions of adjacent first guide members 12 are opposite, and an extraction channel is formed in the extraction main body 11. When the material 100 is extracted through the extraction main body 1, the material 100 moves up and down synchronously in the extraction channel. Through the arrangement of the first guide member 12, after the fiber filaments enter the extraction tank, the guide ends of the plurality of first guide members 12 act on the fiber filaments in sequence, so that the fiber filaments move horizontally in the extraction tank while also moving up and down, that is, the extraction channel is a winding extraction channel, and the fiber filaments move in the extraction liquid at a certain angle relative to the extraction liquid, so that the contact between the fiber filaments and the extraction liquid is more sufficient, thereby improving the extraction effect. Specifically, the first guide member 12 is a guide roller.

[0031] Reference Figure 3 , Figure 3 3 is a schematic diagram of the structure of the extract recovery mechanism in the embodiment. Preferably, the extract recovery mechanism 3 also includes an extract filter 33 and a fourth pipe 34. The other end of the second pipe 31 is connected to the extract filter 33, and the extract recovery member 32 is connected to the extract filter 33 through the fourth pipe 34. In specific application, the extract filter 33 includes a quartz sand filter kettle 331 and a bag filter kettle 332 that are connected to each other. The quartz sand filter kettle 331 is connected to the other end of the second pipe 31, and the bag filter kettle 332 is connected to the fourth pipe 34. The quartz sand filter kettle 331 contains quartz sand filter material. The impurities contained in the extract are trapped in the quartz sand layer through the porosity of the quartz sand filter material and the adsorption effect of the sand surface, thereby achieving the filtering effect. Since the second pipe 31 sucks the extract from the position near the bottom of the extraction main body 1, the extract contains some impurities. After quartz sand filtration, large particles of impurities with a particle size between 50-1000μm will be filtered out. A filter bag is arranged in the bag filter kettle 332, and most of the fine particle impurities contained in the extract can be filtered out by the arrangement of the filter bag. At the same time, the filter bag can be reused, and filter bags of different specifications can be selected according to actual production needs, and replacement is simple. It can be understood that the quartz sand filter kettle 331 is used for coarse filtration of the extract, and the bag filter kettle 332 is used for fine filtration of the extract. After two filtrations, the extract can be recovered and stored in the extract recovery part 32, which is convenient for subsequent recycling and reuse. Specifically, the fourth pipe member 34 is an infusion pipe, which is provided with a liquid pump and a stop valve. The structure of the first pipe member 21 and the second pipe member 31 is similar to that of the fourth pipe member 34, and the quartz sand filter kettle 331 and the bag filter kettle 332 are also connected through an infusion pipe, which will not be repeated here.

[0032] Re-reference Figure 3Preferably, the extract recovery mechanism 3 further includes a pressurizing member, which is connected to the extract filter 33, and acts on the extract filter 33 to pressurize the extract filter 33. In specific applications, the tops of the quartz sand filter kettle 331 and the bag filter kettle 332 are both provided with air pressurizing ports, and the pressurizing member is respectively connected to the quartz sand filter kettle 331 and the bag filter kettle 332 through the air pressurizing ports, and pressurizes the interior of the quartz sand filter kettle 331 and the bag filter kettle 332. It is understandable that when filtering the extract, increasing the internal pressure of the quartz sand filter kettle 331 and the bag filter kettle 332 can speed up the filtration speed and improve the filtration efficiency. Furthermore, the extract recovery mechanism 3 also includes a flushing part, which includes a flushing pipe 351 and a flushing device 352. The flushing device 352 is arranged at a position near the bottom of the inner wall of the quartz sand filter kettle 331 and faces the quartz sand filter layer. The bottom of the quartz sand filter kettle 331 is connected to the infusion pipe, the flushing pipe 351 is connected to the infusion pipe, and the stop valve is arranged at the connection between the flushing pipe 351 and the infusion pipe, and the stop valve here is a multi-way valve. It can be understood that when normal filtration is performed, the stop valve closes the flushing pipe 351, and the extract flows into the bag filter kettle 332 through the infusion pipe after being filtered in the quartz sand filter kettle 331 for filtration. When the filtration performance of the quartz sand filter material in the quartz sand filter kettle 331 decreases, the stop valve closes the infusion pipeline, and the flushing device 352 flushes the quartz sand filter material. At the same time, the pressure member introduces compressed air from the top of the quartz sand filter kettle 331 to scrub the quartz sand filter material with a mixture of air and water, so that the quartz sand filter material layer is loosened, and the intercepted materials adhering to the surface of the quartz sand can be peeled off and carried away with the flushing water flow through the flushing pipeline 351 and discharged together, which is conducive to discharging the sediment, suspended matter and other impurities in the quartz sand filter layer, and effectively prevents the quartz sand filter material from sticking to each other, so that it can fully restore its pollution interception capacity, thereby achieving the purpose of cleaning and improving the filtering effect. Specifically, the pressure member is a pressure device. The extract recovery member 32 is an extract static storage tank. The extract after two filtrations is sucked through the fourth pipeline member 34 and stored in the extract static storage tank. The extract static storage tank is also provided with a replenishing liquid inlet for replenishing new extract into the extract static storage tank. In addition, the extraction liquid static storage tank is also connected to the extraction main body 11 through a liquid infusion pipeline, so that when needed, the extraction liquid can be drawn from the extraction liquid static storage tank to the extraction main body 11 at any time, so that the extraction liquid can be recovered, filtered and recycled, which can not only effectively treat the extraction liquid, but also effectively reduce production costs through the recycling of the extraction liquid. Specifically, the extraction liquid filter 33 also includes a detection device and a digital display screen. The quartz sand filter kettle 331 and the bag filter kettle 332 are both provided with a detection device for detecting a series of parameters such as the flow rate, pressure, and temperature of the liquid in the filter kettle, and the digital display screen is electrically connected to the detection device for real-time monitoring of the parameters.

[0033] Reference Figure 4 , Figure 4 2 is a schematic diagram of the structure of the white oil recovery mechanism in the embodiment. Preferably, the white oil recovery mechanism 2 further includes a third pipe member 23. The white oil recovery member 22 includes a white oil static tank 221 and a white oil storage tank 222. The other end of the first pipe member 21 is connected to the white oil static tank 221, and the white oil storage tank 222 is connected to the white oil static tank 221 through the third pipe member 23. In specific application, the first pipe member 21 sucks the white oil in the upper layer of the extracted stock solution in the extraction main body member 11 into the white oil static tank 221. Since part of the extracting liquid is still mixed in the white oil at this time, the white oil is statically placed in the white oil static tank 221 for the second time through the setting of the white oil static tank 221, so that the extracting liquid contained in the white oil is naturally precipitated and precipitated at the bottom. After the second static is completed, the third pipe member 23 sucks the white oil in the upper layer into the white oil storage tank 222 for storage, which can further improve the purity of the white oil. A heater is also provided at the bottom of the white oil static tank 221 to control the increase and decrease of the temperature of the white oil in the white oil static tank 221, thereby accelerating the separation of the white oil from the extract mixed therein. Furthermore, the white oil storage tank 222 has a liquid outlet. Through the provision of the liquid outlet, the white oil stored in the white oil storage tank 222 can be recovered and used in the preparation process of the next batch of polymer gel fiber filaments, thereby realizing the recycling and reuse process of the white oil and saving production costs. Specifically, the white oil recovery mechanism 2 also includes a liquid level meter, a thermometer and a digital display screen. The white oil static tank 221 and the white oil storage tank 222 are both provided with a liquid level meter and a thermometer for detecting the liquid level and temperature of the liquid in the white oil static tank 221 and the white oil storage tank 222. The digital display screen is electrically connected to the liquid level meter and the thermometer, respectively, for real-time monitoring of the liquid level and temperature of the liquid.

[0034] Re-reference Figure 2 Preferably, the white oil separation and recovery device also includes a cleaning mechanism 4, which includes a cleaning main body 41 and a spray cleaning part 42. The feed port of the cleaning main body 41 is connected to the discharge port of the extraction main body 11. The spray cleaning part 42 is arranged on the top of the cleaning main body 41, and the working end of the spray cleaning part 42 faces the material 100 in the cleaning main body 41. In specific applications, the white oil in the fiber filaments after passing through the extraction main body 11 has been extracted and replaced by the extracting liquid. At this time, the fiber filaments enter the cleaning main body 41, and the spray cleaning part 42 sprays the cleaning liquid onto the fiber filaments, sprays and cleans the extracting liquid on the fiber filaments, thereby thoroughly cleaning and removing the extracting liquid in the fiber filaments. Specifically, the cleaning main body 41 is a cleaning tank, and the spray cleaning part 42 is a cleaning liquid spraying device, and the cleaning liquid is water or ethanol.

[0035] Re-reference Figure 2Preferably, the cleaning mechanism 4 further includes a plurality of second guide members 43, which are alternately arranged on two opposite inner walls of the cleaning main body 41 in a vertical direction, and the guiding direction of the second guide member 43 on one inner wall is opposite to the guiding direction of the second guide member 43 on the other inner wall, and a cleaning channel is formed in the cleaning main body 41. When the material 100 passes through the cleaning main body 41 for cleaning, the material 100 moves back and forth in the cleaning channel in a horizontal direction synchronously. In specific application, the second guide member 43 is a guide roller. It can be understood that guide rollers are arranged on the two opposite inner walls of the cleaning tank. After the fiber filament enters the cleaning tank, the plurality of guide rollers guide the movement of the fiber filament in turn. Specifically, the fiber filament enters the cleaning tank from the upper left and leaves from the lower right. The plurality of guide rollers make the fiber filament move back and forth in the cleaning tank synchronously in a horizontal direction. During this period, the spray cleaning member 42 continuously sprays the cleaning liquid on the fiber filament to clean it, which is equivalent to increasing the residence time of the fiber filament in the cleaning tank and improving the cleaning effect.

[0036] Reference Figure 5 , Figure 5It is a structural schematic diagram of the cleaning liquid circulation mechanism in the embodiment. Preferably, the white oil separation and recovery device also includes a cleaning liquid circulation mechanism 5, which includes a cleaning liquid storage tank 51, a distillation reactor 52, a condensation pipe 53, a cleaning liquid collecting tank 54, a fifth pipe member 55 and a sixth pipe member 56. The cleaning liquid storage tank 51 is connected to the spray cleaning member 42, and the cleaning liquid storage tank 51 is connected to the cleaning main body member 41 through the fifth pipe member 55. Both ends of the sixth pipe member 56 are respectively connected to the cleaning liquid storage tank 51 and the distillation reactor 52. One end of the condensation pipe 53 is connected to the top of the distillation reactor 52, and the other end of the condensation pipe 53 is connected to the cleaning liquid collecting tank 54. In specific applications, after the fiber filaments are spray-cleaned in the cleaning tank, the cleaning liquid and the extraction liquid will fall into the bottom of the cleaning tank. The bottom of the cleaning tank is connected to the cleaning liquid storage tank 51 through the fifth pipe member 55. The cleaning liquid and the extraction liquid at the bottom of the cleaning tank are sucked into the cleaning liquid storage tank 51 through the fifth pipe member 55. The spray cleaning component 42 is also connected to the cleaning liquid storage tank 51 through an infusion pipe. The infusion pipe is also provided with a stop valve and a liquid pump. That is, the spray cleaning component 42 can directly suck cleaning liquid from the cleaning liquid storage tank 51 for spray cleaning of the fiber filaments in the cleaning tank. Furthermore, the cleaning liquid storage tank 51 is also provided with a liquid parameter measuring and monitoring device and a digital display screen. The liquid parameter measuring and monitoring device is arranged in the cleaning liquid storage tank 51 for real-time detection of a series of parameters such as pH value and conductivity of the liquid in the cleaning liquid storage tank 51. The digital display screen is electrically connected to the liquid parameter measuring and monitoring device. By detecting the relevant parameters of the cleaning liquid, the content of the extract in the cleaning liquid is determined, that is, whether the content of the extract in the cleaning liquid is saturated. When the content of the extract is saturated, the fifth pipeline component 55, the spray cleaning component 42 and the stop valve of the corresponding infusion pipeline are closed, and the sixth pipeline component 56 is opened at the same time to draw the cleaning liquid in the cleaning liquid storage tank 51 into the distillation reactor 52. A heating device 57 is arranged outside the distillation reactor 52. The heating device 57 includes a heating table, an electric-controlled heater, heat transfer oil and a heater. The heating platform contains heat-conducting oil, and a heater is provided in the heating platform to heat the heat-conducting oil. The electric heater is electrically connected to the heater, and one end of the electric heater is connected to a temperature conductor and extends into the heat-conducting oil. The distillation reactor 52 is placed in the heat-conducting oil for heating, thereby heating and distilling the cleaning liquid inside it. Since the boiling point of the extract is much higher than that of the cleaning liquid, the extract dissolved in the cleaning liquid is not distilled to form a gas, so the extract remains in the distillation reactor 52, and the cleaning liquid is gasified and condensed and liquefied through the condensation pipe 53, and then collected in the cleaning liquid collection tank 54.In this way, the cleaning liquid and the extracting liquid can be separated, and the cleaning liquid can be recovered through the cleaning liquid collecting tank 54. As for the extracting liquid retained in the distillation reactor 52, the extracting liquid can be pumped from the distillation reactor 52 to the extracting liquid storing tank 58 by setting the extracting liquid storing tank 58 and the corresponding infusion pipeline and the pumping pump, so as to facilitate the subsequent recycling and reuse. That is, the extracting liquid in the extracting liquid storing tank 58 is pumped into the extracting main body 1 for recycling and reuse, and the cleaning liquid in the cleaning liquid collecting tank 54 can be pumped into the cleaning liquid storing tank 51 for recycling and reuse. In this way, the extracting liquid can be effectively processed and the processing cost can be reduced. At the same time, the extracting liquid and the cleaning liquid can be separated and recycled separately, thereby reducing the production cost. Specifically, the structures of the fifth pipe member 55 and the sixth pipe member 56 are similar to those of the first pipe member 21. A thermometer, a pressure gauge and a liquid level gauge are also provided inside the distillation reactor 52. A digital display screen electrically connected to the thermometer, the pressure gauge and the liquid level gauge is provided outside the distillation reactor 52. The thermometer is mainly used to measure the temperature of the liquid in the distillation reactor 52. The pressure gauge is used to measure the pressure in the distillation reactor 52. The liquid level gauge measures the liquid level in the distillation reactor 52. The central control device is also connected to a digital display screen, which mainly monitors and displays in real time the liquid level of the liquid in the distillation reactor 52, the temperature and pressure in the distillation reactor 52 and other related status parameters.

[0037] Re-reference Figure 5 Preferably, the cleaning liquid circulation mechanism 5 further includes a vacuum pump 59, which is connected to the cleaning liquid collecting tank 54, and the vacuum pump 59 acts on the cleaning liquid collecting tank 54 and evacuates the cleaning liquid collecting tank 54 and the distillation reactor 52. In specific applications, the vacuum pump 59 evacuates the cleaning liquid collecting tank 54 and the distillation reactor 52, thereby adjusting the air pressure inside the cleaning liquid collecting tank 54 and the distillation reactor 52. That is, by setting the vacuum pump 59, the pressure inside the distillation reactor 52 is adjustable, that is, the entire distillation recovery process of the distillation reactor 52 can be realized in two forms: conventional distillation and reduced pressure distillation, wherein the reduced pressure distillation can achieve a negative pressure (100-1000Pa) of the system under the action of the vacuum pump 59. In actual production, according to different working conditions and conditions, reduced pressure distillation can be selected to reduce the boiling point of the cleaning liquid, thereby improving the distillation efficiency and production efficiency, while avoiding excessive heating temperature affecting the original properties of the solvent. Furthermore, a thermometer is also provided in the condensation pipe 53 for monitoring the temperature of the vaporized cleaning liquid in the condensation pipe 53 to prevent the temperature of the vaporized cleaning liquid from being too high. If the temperature is too high, the pressure of the distillation reactor 52 needs to be reduced by the vacuum pump 59 to reduce the boiling point of the cleaning liquid and the temperature of the vaporized cleaning liquid, thereby controlling the safe and stable operation of the entire reduced pressure distillation process.

[0038] Preferably, the white oil separation and recovery device also includes a drying mechanism 6, the feed port of the drying mechanism 6 is connected to the discharge port of the cleaning main body 41, and the drying mechanism 6 has a drying operation area, and the material 100 is dried in the drying operation area to remove the cleaning liquid. In specific application, the fiber filaments cleaned in the cleaning tank enter the drying mechanism 6 for drying to remove the cleaning liquid. In this embodiment, the drying mechanism 6 is a split drying box, which has a plurality of drying partitions with different temperatures, so as to achieve the purpose of progressive step-by-step continuous drying, save energy and improve the drying effect. Furthermore, the traction mechanism 7 has a plurality of traction rollers, and the fiber filaments are pulled through the extraction main body 1, the cleaning main body 41 and the drying mechanism 6 in sequence through the plurality of traction rollers. The rotation speed of the traction roller located at the discharge port of the drying mechanism 6 is greater than that of the traction roller located at the feed port of the drying mechanism 6. That is to say, when the fiber filaments are dried by the drying mechanism 6, they are also stretched by the traction rollers synchronously, thereby completing the first pre-stretching process of the fiber filaments, thereby improving production efficiency.

[0039] It should be noted that the white oil separation and recovery device also includes a control console, which is electrically connected to the extraction mechanism 1, the white oil recovery mechanism 2, the extraction liquid recovery mechanism 3, the cleaning mechanism 4, the cleaning liquid circulation mechanism 5, the drying mechanism 6 and the traction mechanism 7. In specific applications, the control console is a central control device, and the heater, ultrasonic generator, guide roller, traction roller mechanism, pressurizing device, detection device, cleaning liquid spraying device, liquid parameter measurement and monitoring device, vacuum pump and all liquid pumps, temperature detectors, liquid level gauges, digital display screens, stop valves, etc. in this embodiment are all electrically connected to the central control device, which is convenient for operators to grasp the relevant parameters and operating status of each process in real time, and can control each step of the entire process through it to ensure the safe and stable operation of the process and the normal operation of the equipment.

[0040] In summary, since the density of white oil in the extraction liquid is lower than that of the extracting liquid, and the white oil and the extracting liquid are immiscible, the extraction liquid in the extraction main body 11 will be stratified, and the white oil will float on the upper layer of the extracting liquid. Since one end of the first pipe member 21 is connected to the position near the top of the extraction main body 11, the first pipe member 21 can suck the white oil located in the upper layer of the extraction liquid to the white oil recovery member 22 for recovery, and the second pipe member 31 connected to the position near the bottom of the extraction main body 11 sucks the extracting liquid located in the lower layer to the extracting liquid recovery member 32 for recovery. In this way, not only can the white oil on the fiber filaments be removed by extracting the extracting liquid, but also the white oil and the extracting liquid can be separated and recovered separately, reducing the difficulty of handling the extraction waste liquid, avoiding environmental pollution caused by improper treatment of the extracting liquid and causing harm to the health of production personnel, and at the same time, it can also realize the recycling and reuse of white oil and extracting liquid, avoiding the waste of white oil and extracting liquid, and saving production costs.

[0041] The above is only the implementation mode of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A white oil separation and recovery device, characterized in that: include: An extraction mechanism (1) comprises an extraction main body (11), wherein the extraction main body (11) contains an extraction stock solution; a white oil recovery mechanism (2), comprising a first pipe member (21) and a white oil recovery member (22), wherein one end of the first pipe member (21) is connected to a position close to the top of the extraction main member (11), and the other end of the first pipe member (21) is connected to the white oil recovery member (22); and An extraction liquid recovery mechanism (3), comprising a second pipe member (31) and an extraction liquid recovery member (32), wherein one end of the second pipe member (31) is connected to a position close to the bottom of the extraction main body member (11), and the other end of the second pipe member (31) is connected to the extraction liquid recovery member (32); The extracted liquid is allowed to stand in the extraction main body (11) to separate into layers, the first pipe (21) draws the white oil in the upper layer of the extracted liquid to the white oil recovery part (22), and the second pipe (31) draws the extracted liquid in the lower layer of the extracted liquid to the extracted liquid recovery part (32).

2. The white oil separation and recovery device according to claim 1, characterized in that: The white oil recovery mechanism (2) further comprises a third pipe member (23); the white oil recovery member (22) comprises a white oil static tank (221) and a white oil storage tank (222); the other end of the first pipe member (21) is connected to the white oil static tank (221); and the white oil storage tank (222) is connected to the white oil static tank (221) via the third pipe member (23).

3. The white oil separation and recovery device according to claim 1, characterized in that: The extract recovery mechanism (3) further comprises an extract filter element (33) and a fourth pipe element (34); the other end of the second pipe element (31) is connected to the extract filter element (33); and the extract recovery element (32) is connected to the extract filter element (33) via the fourth pipe element (34).

4. The white oil separation and recovery device according to claim 3, characterized in that: The extraction liquid recovery component (32) is connected to the extraction main component (11).

5. The white oil separation and recovery device according to claim 3, characterized in that: The extract recovery mechanism (3) further comprises a pressurizing element, which is in communication with the extract filter element (33) and acts on the extract filter element (33) to pressurize the extract filter element (33).

6. The white oil separation and recovery device according to claim 1, characterized in that: The extraction mechanism (1) further comprises a plurality of first guide members (12), wherein the plurality of first guide members (12) are arranged in sequence and at intervals in the extraction main body (11), wherein the guide ends of the first guide members (12) are immersed in the extraction stock solution, and the guide directions of adjacent first guide members (12) are opposite, and an extraction channel is formed in the extraction main body (11); when the material (100) passes through the extraction main body (11) for extraction, the material (100) synchronously moves up and down in the extraction channel.

7. The white oil separation and recovery device according to any one of claims 1 to 6, characterized in that: It also includes a cleaning mechanism (4), the cleaning mechanism (4) includes a cleaning body (41) and a spray cleaning member (42), the feed port of the cleaning body (41) is connected to the discharge port of the extraction body (11), the spray cleaning member (42) is arranged on the top of the cleaning body (41), and the working end of the spray cleaning member (42) faces the material (100) in the cleaning body (41).

8. The white oil separation and recovery device according to claim 7, characterized in that: The cleaning mechanism (4) further comprises a plurality of second guide members (43), which are arranged alternately and sequentially on two opposite inner walls of the cleaning main body (41) in a vertical direction, wherein the guiding direction of the second guide members (43) on one inner wall is opposite to the guiding direction of the second guide members (43) on the other inner wall, and a cleaning channel is formed in the cleaning main body (41); when the material (100) passes through the cleaning main body (41) for cleaning, the material (100) synchronously moves back and forth in the horizontal direction in the cleaning channel.

9. The white oil separation and recovery device according to claim 7, characterized in that: It also includes a cleaning liquid circulation mechanism (5), which includes a cleaning liquid storage tank (51), a distillation reactor (52), a condensation pipe (53), a cleaning liquid collecting tank (54), a fifth pipe member (55) and a sixth pipe member (56). The cleaning liquid storage tank (51) is connected to the spray cleaning member (42), and the cleaning liquid storage tank (51) is connected to the cleaning main body member (41) through the fifth pipe member (55). The two ends of the sixth pipe member (56) are respectively connected to the cleaning liquid storage tank (51) and the distillation reactor (52). One end of the condensation pipe (53) is connected to the top end of the distillation reactor (52), and the other end of the condensation pipe (53) is connected to the cleaning liquid collecting tank (54).

10. The white oil separation and recovery device according to claim 7, characterized in that: It also includes a drying mechanism (6), the feed port of the drying mechanism (6) is connected to the discharge port of the cleaning main body (41), the drying mechanism (6) has a drying operation area, and the material (100) is dried in the drying operation area to remove the cleaning liquid.

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