Waste liquid extraction device and use method

Abstract

The invention relates to the technical field of liquid extraction, in particular to a waste liquid extraction device and a use method. Comprising an extraction cylinder, a water pumping pipe and a water discharging pipe are installed at the top of the extraction cylinder, an air valve is further installed at the top of the extraction cylinder, a water dispersing mechanism is arranged at the end, located in the extraction cylinder, of the water pumping pipe, and a stirring shaft is installed in the extraction cylinder; in the water pumping pipe, high-speed water flow drives a first spiral blade to generate rotating torque, then a driving shaft is driven to do fixed-axis rotation, a water dispersing pipe coaxially rotates along with the driving shaft, the water dispersing pipe forms a dynamic centrifugal force field under the action of centrifugal force, waste liquid forms micron-sized atomized particles, and the micron-sized atomized particles are evenly cast to the inner wall face of the pumping cylinder. The specific surface area of the liquid drops is obviously increased, and the dissolved gas is rapidly diffused and escaped under the driving of gas-liquid interface pressure difference.

Description

Technical Field

[0001] The present application relates to the technical field of liquid extraction, and in particular to a waste liquid extraction device and a method of use. Background Art

[0002] Wastewater treatment is a significant environmental issue for modern maritime vessels. Ships inevitably generate various wastewaters during ocean transportation, including wash water, oils, and hazardous liquids. Directly discharging these wastewaters into the ocean can severely pollute the marine environment and impact the health of local ecosystems. Therefore, developing efficient, safe, and reliable wastewater extraction and sampling equipment is crucial. The sampled wastewater is then packaged and transported to a laboratory for testing and analysis.

[0003] For example, patent application CN215727036U discloses a liquid extraction device for post-treatment wastewater testing. This device secures a sample tube using a clamping mechanism. A sealing gasket ensures tightness, while a clamping ring, with beads between first and second bead holders, presses against a movable rod. A clutch plate secures the tube laterally. Rotating a butterfly nut locks the rotating base plate, preventing the clamping ring from loosening and affecting clamping, significantly improving sampling stability and efficiency.

[0004] In transoceanic transport scenarios, the prolonged retention of wastewater can pose multiple safety risks. Due to the long shipping period, fluctuations in ambient temperature and humidity, and the effects of microbial activity, chemical degradation and biofermentation reactions occur within the wastewater, continuously producing toxic volatile gases such as hydrogen sulfide and methane. If extraction is performed directly without pretreatment, pressure fluctuations during sampling will accelerate the release of dissolved gases, leading to a sudden increase in harmful gas concentrations during subsequent laboratory analysis, posing a risk of acute poisoning to workers.

[0005] During the transportation and packaging process, directly filling waste liquid into packaging bags will cause double risks: on the one hand, methane accumulates in the confined space, and under the influence of transportation vibration and temperature difference between day and night, fatigue fracture is prone to occur at the seams of the packaging bags; on the other hand, gas penetration and overflow may cause the packaging bags to expand and deform, and in extreme cases, explosion accidents may occur, causing secondary pollution. Summary of the Invention

[0006] In order to solve the above technical problems, the present application provides a waste liquid extraction device and a method of use, which adopts the following technical solutions:

[0007] In a first aspect, a waste liquid extraction device includes an extraction cylinder, a water extraction pipe and a water discharge pipe are installed on the top of the extraction cylinder, and an air valve is also installed on the top of the extraction cylinder. The water extraction pipe is located inside the extraction cylinder. One end is provided with a water dispersion mechanism. A stirring shaft is installed inside the extraction cylinder, wherein:

[0008] The stirring shaft is installed inside the extraction cylinder through a bearing, and the top of the stirring shaft passes through the top of the extraction cylinder. Two groups of stirring rods are symmetrically arranged on the stirring shaft along its axial direction. Each group of stirring rods is evenly arranged with multiple stirring rods along the length direction of the stirring shaft, and the stirring rods can swing along the axial direction of the stirring shaft.

[0009] The water dispersion mechanism includes:

[0010] The water spreading pipe is horizontally arranged at the bottom of the water pumping pipe and abuts against the bottom of the water pumping pipe. A connecting plate is arranged inside the water spreading pipe.

[0011] Drive shaft, mounted on the connecting plate.

[0012] The fixing frame is installed at one end of the water extraction pipe located inside the extraction cylinder, and the driving shaft is installed on the fixing frame through a bearing, and a spiral blade is installed on the driving shaft.

[0013] Preferably, the stirring rod near the water suction pipe increases in length from the bottom of the extraction cylinder to the top of the extraction cylinder, and the stirring rod near the water discharge pipe decreases in length from the bottom of the extraction cylinder to the top of the extraction cylinder.

[0014] Preferably, a through groove is provided on the stirring shaft, and the stirring rod is installed inside the through groove through a hinge shaft. A pull-out rod is provided inside the stirring shaft for sliding along its length direction. A telescopic section is provided at one end of the stirring rod close to the pull-out rod, and the telescopic section of the stirring rod is installed on the pull-out rod through a hinge.

[0015] Preferably, a clamping circular plate is provided at one end of the water discharge pipe away from the extraction cylinder, and a lower pressure plate that cooperates with the clamping circular plate is installed on the water discharge pipe through a threaded connection.

[0016] Preferably, a debris box is installed at the end of the water suction pipe away from the water diffusion pipe, and through holes are evenly opened on the circumferential surface of the debris box. A rotating shaft is rotatably installed on the side of the debris box away from the water suction pipe through a bearing, and a section of the rotating shaft located outside the debris box is provided with a two-way thread structure. A reciprocating moving block is connected to the rotating shaft by a thread pair. A guide rod is installed on the side wall of the debris box, and the end of the guide rod away from the debris box is slid through and set on the moving block.

[0017] One end of the rotating shaft located inside the impurity discharge box is arranged inside the water pumping pipe, and the part of the rotating shaft arranged inside the water pumping pipe is equipped with a second spiral blade.

[0018] Preferably, an annular rod is sleeved on the circumferential surface of the debris removal box, a support rod is provided on the moving block, and one end of the support rod away from the moving block is connected to the annular rod.

[0019] Preferably, an annular block is installed on the rotating shaft, and a plurality of linkage blocks are evenly installed on the circumferential surface of the annular block. A plurality of scrapers are evenly arranged on the circumferential surface of the debris discharge box along its circumference, and the scrapers are in contact with the circumferential surface of the debris discharge box and are located inside the annular rod. An annular frame is commonly installed on the scrapers, and a telescopic link is installed on the inner wall of the annular frame. The telescopic section of the telescopic link is provided with an inclined surface matching the linkage block. A fixed protrusion is provided on the side wall of the debris discharge box, and an elastic telescopic rod is installed on the fixed protrusion, and the telescopic section of the elastic telescopic rod is in contact with the fixed section of the telescopic link.

[0020] Preferably, a section of the water suction pipe close to the waste box is equipped with a collecting frame with an opening toward the waste box, and a plurality of connecting protrusions are evenly arranged on the inner wall of the collecting frame along its circumference, a baffle is installed on the connecting protrusion through a spring hinge, and a limit block is installed on the connecting protrusion to limit the baffle.

[0021] Preferably, a dredging component for dredging the through holes is also provided inside the debris removal box.

[0022] In a second aspect, a method for using a waste liquid extraction device comprises the following steps:

[0023] S1: Prepare for treatment, place the end of the suction pipe with the drainage box inside the wastewater, then place the packaging bag on the clamping circular plate and use the lower pressure plate to press the packaging bag onto the clamping circular plate.

[0024] S2: Pumping treatment, the waste liquid is pumped into the extraction cylinder through the pumping pipe.

[0025] S3: Exhaust treatment, scattering the waste liquid inside the extraction cylinder through the water dispersion pipe so that the gas inside the waste liquid can be discharged.

[0026] S4: Collection and processing: the waste liquid inside the extraction cylinder is pumped into the packaging bag through the drain pipe.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. In the water-dispersing mechanism designed in this invention, high-speed water flow within the pumping pipe drives the spiral blades, generating rotational torque. This in turn drives the drive shaft to rotate along a fixed axis, causing the water-dispersing pipe to rotate coaxially. Centrifugal force creates a dynamic centrifugal field in the water-dispersing pipe, transforming the waste liquid into micron-sized atomized particles that are uniformly projected toward the inner wall of the extraction cylinder. During this process, the specific surface area of ​​the droplets increases significantly, and the dissolved gas rapidly diffuses and escapes due to the pressure difference at the gas-liquid interface.

[0029] 2. The synchronously running stirring shaft designed in the present invention drives the stirring rod to move circumferentially. The stirring rod swings simultaneously during the circumferential movement to generate shear force. This strong shear fluidization effect not only destroys the equilibrium state of the gas-liquid interface, but also causes microbubbles to gather and float upward through turbulent pulsation. At the same time, the impact of the high-speed liquid flow on the inner wall of the extraction cylinder forms reciprocating pressure oscillations, which further causes the gas in the waste liquid to escape.

[0030] 3. The impurity removal box designed in the present invention can isolate solid impurities in the waste liquid, preventing the impurities from flowing into the extraction cylinder through the suction pipe along with the water, thereby affecting the subsequent packaging of the waste liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0032] Figure 2 It is a schematic diagram of the three-dimensional installation structure between the interior of the extraction cylinder, the stirring shaft and the water dispersion mechanism of the present invention.

[0033] Figure 3 This invention Figure 2 A partial enlarged view of point A in the middle.

[0034] Figure 4 It is a schematic diagram of the installation structure between the stirring shaft and the stirring rod of the present invention.

[0035] Figure 5 This invention Figure 4 A partial enlarged view of point B in the middle.

[0036] Figure 6 It is a schematic diagram of the three-dimensional installation structure between the impurity discharge box, the rotating shaft and the water pumping pipe of the present invention.

[0037] Figure 7 It is a schematic diagram of the three-dimensional installation structure among the rotating shaft, moving block, guide rod and annular rod of the present invention.

[0038] Figure 8 It is a schematic diagram of the three-dimensional installation structure between the debris removal box, scraper and telescopic connecting rod of the present invention.

[0039] Figure 9 This invention Figure 8 A partial enlarged view of point C in the middle.

[0040] Figure 10 It is a schematic diagram of the three-dimensional installation structure between the collecting frame and the baffle etc. of the present invention.

[0041] Figure 11 This invention Figure 10 A partial enlarged view of point D in the middle.

[0042] Figure 12It is a schematic diagram of the three-dimensional installation structure between the debris removal box, dredging component and rotating shaft of the present invention.

[0043] Figure 13 It is a schematic diagram of the three-dimensional installation structure between the rotating shaft, the movable circular plate and the annular plate of the present invention.

[0044] Figure 14 This invention Figure 13 A partial enlarged view of point E in the middle.

[0045] Figure 15 It is a flow chart of the method for using the waste liquid extraction device of the present invention.

[0046] Explanation of reference numerals: 1. extraction cylinder; 2. water extraction pipe; 21. collection frame; 22. connecting protrusion; 23. baffle; 24. limit block; 3. water discharge pipe; 31. clamping circular plate; 32. lower pressure plate; 4. air valve; 6. water dispersion mechanism; 61. water dispersion pipe; 62. connecting plate; 63. drive shaft; 64. fixing frame; 65. spiral blade 1; 7. stirring shaft; 71. stirring rod; 72. pulling rod; 8. debris discharge box; 81. through hole; 82. rotating shaft; 821 , annular block; 822, linkage block; 823, scraper; 824, annular frame; 825, telescopic link; 826, fixed protrusion; 827, elastic telescopic rod; 83, moving block; 84, guide rod; 85, spiral blade two; 86, annular rod; 87, support rod; 88, dredging component; 881, reciprocating plate; 882, telescopic spring rod; 883, dredging protrusion; 884, moving circular plate; 885, annular plate; 886, guide link; 887, connecting block. DETAILED DESCRIPTION

[0047] The following is combined with Figures 1 to 15 This application is described in further detail.

[0048] The embodiments of the present application disclose a waste liquid extraction device and a method for use, which can discharge harmful gases in the waste liquid, thereby preventing leakage of the waste liquid during transportation and subsequent experiments after packaging, and even endangering workers.

[0049] Example 1:

[0050] Reference Figure 1 as well as Figure 2 A waste liquid extraction device includes an extraction cylinder 1, a water extraction pipe 2 and a water discharge pipe 3 are installed on the top of the extraction cylinder 1, and an air valve 4 is also installed on the top of the extraction cylinder 1. The water extraction pipe 2 is located at one end inside the extraction cylinder 1 and is provided with a water dispersion mechanism 6. A stirring shaft 7 is installed inside the extraction cylinder 1, wherein:

[0051] The stirring shaft 7 is installed inside the extraction cylinder 1 through a bearing, and the top of the stirring shaft 7 passes through the top of the extraction cylinder 1. Two groups of stirring rods 71 ​​are symmetrically arranged on the stirring shaft 7 along its axial direction. Each group of stirring rods 71 ​​is evenly arranged with multiple stirring rods along the length direction of the stirring shaft 7, and the stirring rods 71 ​​can swing along the axial direction of the stirring shaft 7.

[0052] Reference Figure 2 as well as Figure 3 , the water dispersion mechanism 6 includes:

[0053] The water spreading pipe 61 is horizontally arranged at the bottom of the water pumping pipe 2 and abuts against the bottom of the water pumping pipe 2 . A connecting plate 62 is provided inside the water spreading pipe 61 .

[0054] The driving shaft 63 is mounted on the connecting plate 62 .

[0055] The fixing frame 64 is installed at one end of the water extraction pipe 2 located inside the extraction cylinder 1, and the driving shaft 63 is installed on the fixing frame 64 through a bearing, and a spiral blade 65 is installed on the driving shaft 63.

[0056] The water suction pipe 2 and the water discharge pipe 3 are both installed with existing water pumps. The end of the water suction pipe 2 located outside the extraction cylinder 1 is inserted into the waste liquid. At this time, the waste liquid is pumped into the extraction cylinder 1 through the water pump installed on the water suction pipe 2. During the flow of water inside the water suction pipe 2, the spiral blade 65 is driven to generate a rotational torque, which in turn drives the drive shaft 63 to rotate on a fixed axis, and the water dispersion pipe 61 rotates coaxially therewith. The water dispersion pipe 61 forms a dynamic centrifugal force field under the action of centrifugal force, so that the waste liquid forms atomized particles and is uniformly projected onto the inner wall surface of the extraction cylinder 1. In this process, the specific surface area of ​​the droplets is significantly increased, and the dissolved gas quickly diffuses and escapes under the drive of the pressure difference at the gas-liquid interface.

[0057] In the above process, the stirring shaft 7 is driven to rotate by an external drive motor (not shown in the figure), and the stirring shaft 7 drives the stirring rod 71 to move circumferentially during the rotation. The stirring rod 71 swings simultaneously during the circumferential movement to generate shear force. This strong shear fluidization effect not only destroys the equilibrium state of the gas-liquid interface, but also causes microbubbles to gather and float up through turbulent pulsation. At the same time, the impact of high-speed liquid flow on the inner wall of the extraction cylinder 1 forms reciprocating pressure oscillations, which further causes gas in the waste liquid to escape.

[0058] Reference Figure 2 A clamping circular plate 31 is provided at one end of the water discharge pipe 3 away from the extraction cylinder 1, and a lower pressure plate 32 that cooperates with the clamping circular plate 31 is installed on the water discharge pipe 3 through a threaded connection.

[0059] Before starting to extract the waste liquid, the packaging bag is put on the clamping circular plate 31 , and then the lower pressing plate 32 is rotated to fix the bag opening on the clamping circular plate 31 .

[0060] Reference Figure 4 as well as Figure 5 A through groove is provided on the stirring shaft 7, and the stirring rod 71 is installed inside the through groove through a hinge shaft. A pull rod 72 is slidingly provided inside the stirring shaft 7 along its length direction. A telescopic section is provided at one end of the stirring rod 71 close to the pull rod 72, and the telescopic section of the stirring rod 71 is installed on the pull rod 72 through a hinge.

[0061] During specific operation, during the rotation of the stirring shaft 7, the pulling rod 72 is pulled by the existing driving cylinder (not shown in the figure) to move back and forth along the length direction of the stirring shaft 7. During the reciprocating movement of the pulling rod 72, the stirring rod 71 is driven to swing back and forth around the hinge shaft, and then the stirring rod 71 is synchronously swung back and forth along the axis direction of the stirring shaft 7 during the circumferential rotation. The circumferential rotation and up and down swinging of the stirring rod 71 form a composite shear force, which breaks the stable state of the dissolved gas and accelerates the transformation of the gas from the liquid phase to the gas phase. At the same time, the turbulence and local pressure changes generated by the up and down swinging of the stirring rod 71 reduce the gas solubility and promote the precipitation of the dissolved gas in the form of tiny bubbles.

[0062] In addition, the stirring rod 71 pushes the liquid to form up and down convection during the up and down reciprocating swing, guiding the bubbles to quickly gather toward the liquid surface along the surface of the stirring rod 71, shortening the gas escape path. In addition to the above beneficial effects, the continuous reciprocating motion maintains the liquid flow state and prevents the bubbles from re-dissolving due to stagnation.

[0063] It should be noted that the stirring rod 71 is provided with a telescopic section to ensure that the stirring rod 71 will not be rigidly pulled by the pulling rod 72 when the pulling rod 72 rotates with the stirring rod 71 around the hinge axis, thereby compensating for the radial displacement of the stirring rod 71 caused by the circumferential rotation.

[0064] Replay Figure 4 The length of the stirring rod 71 near the water extraction pipe 2 increases from the bottom of the extraction cylinder 1 to the top of the extraction cylinder 1, and the length of the stirring rod 71 near the water discharge pipe 3 decreases from the bottom of the extraction cylinder 1 to the top of the extraction cylinder 1.

[0065] On one side of the water extraction pipe 2, the shorter stirring rod 71 at the bottom forms a high-intensity shear zone at the bottom of the extraction cylinder 1, which quickly breaks the stable interface of the dissolved gas and causes microbubbles to precipitate from the liquid phase. The longer stirring rod at the top covers a larger radial range, pushing the liquid to form a spiral upward flow, guiding the precipitated bubbles to migrate to the liquid surface, shortening the escape path, and thereby increasing the escape of bubbles dissolved in the waste liquid.

[0066] On one side of the drain pipe 3, the longer stirring rod 71 at the bottom maintains the lifting force of the bottom fluid during the circumferential rotation, prevents the bubbles from settling and pushes them to gather towards the center. The shorter stirring rod 71 can reduce the disturbance of the upper fluid, form a low turbulence area, avoid the bubbles from re-dissolving due to excessive shear, and promote the rapid detachment of surface bubbles.

[0067] Thus, the step-by-step lengthening stirring produces periodic pressure changes during the stirring rack process, reducing the gas solubility and accelerating the escape of gas. In addition, the continuous asymmetric flow maintains the up and down convection of the liquid, preventing the gas from stagnation in the form of bubbles and inhibiting the re-establishment of the dissolution equilibrium.

[0068] At the same time, the stirring rod 71 can extract the waste liquid inside the cylinder 1 for stirring during the stirring process, ensuring that the solute in the waste liquid is evenly distributed and avoiding unevenness inside the waste liquid when the waste liquid is subsequently filled into the packaging bag by the water discharge pipe 3.

[0069] The escaping gas enters the space above the liquid level inside the extraction cylinder 1. When the gas reaches a certain pressure, it is discharged outward through the air valve 4. Then, the water pump on the drain pipe 3 cooperates with the drain pipe 3 to extract the waste liquid into the packaging bag. Finally, the packaging bag is heat-sealed, so that the waste liquid can be extracted, collected and processed.

[0070] Reference Figure 6 as well as Figure 7 In order to prevent solid impurities in the waste liquid from adhering to the circumferential surface of the extraction cylinder 1 and entering the interior of the extraction cylinder 1, the impurity removal box 8 provided by the present invention can isolate the solid impurities outside the water suction pipe 2. Specifically, the impurity removal box 8 is installed at the end of the water suction pipe 2 away from the water dispersion pipe 61. Through holes 81 are evenly opened on the circumferential surface of the impurity removal box 8. A rotating shaft 82 is rotatably installed on the side of the impurity removal box 8 away from the water suction pipe 2 through a bearing, and a section of the rotating shaft 82 located outside the impurity removal box 8 is provided with a two-way thread structure. A reciprocating moving block 83 is connected to the rotating shaft 82 by a threaded pair. A guide rod 84 is installed on the side wall of the impurity removal box 8, and the guide rod 84 is slidably set on the moving block 83 at the end away from the impurity removal box 8.

[0071] One end of the rotating shaft 82 located inside the impurity box 8 is arranged inside the water pumping pipe 2, and the part of the rotating shaft 82 located inside the water pumping pipe 2 is equipped with a spiral blade 85 (see Figure 13 ).

[0072] An annular rod 86 is sleeved on the circumferential surface of the debris removal box 8 , and a support rod 87 is provided on the moving block 83 . One end of the support rod 87 away from the moving block 83 is connected to the annular rod 86 .

[0073] There are multiple groups of through holes 81 evenly arranged along the circumferential surface of the debris box 8, and each group of through holes 81 is evenly distributed along the length direction of the debris box 8, and the scraper 823 corresponds to each group of through holes 81 one by one. During operation, the water flow inside the water pumping pipe 2 drives the spiral blade 2 85 to generate a rotational torque during the flow process, and then the spiral blade 2 85 drives the rotating shaft 82 to rotate. During the rotation of the rotating shaft 82, the moving block 83 is driven to move toward the side of the debris box 8 through the bidirectional thread structure.

[0074] During the movement of the moving block 83, the guide rod 84 can limit it, so that the moving block 83 moves linearly along the rotating shaft 82, avoiding the synchronous rotation around the rotating shaft 82 during the movement of the moving block 83. During the movement of the moving block 83, the annular rod 86 is driven to move by the support rod 87. During the movement of the annular rod 86, the solid impurities attached to the through hole 81 of the extraction cylinder 1 can be pushed to move, avoiding the solid impurities clogging the through hole 81 and affecting the waste liquid from entering the impurity discharge box 8.

[0075] When the moving block 83 moves to the vicinity of the side wall of the impurity removal box 8, the moving block 83 is reset by the bidirectional thread structure, and the above-mentioned action is repeated to remove the solid impurities on the circumferential surface of the impurity removal box 8.

[0076] Reference Figure 8 as well as Figure 9 The scraper 823 is provided with an annular frame 824, and a telescopic link 825 is installed on the inner wall of the annular frame 824. The telescopic section of the telescopic link 825 is provided with an inclined surface that matches the linkage block 822. A fixed protrusion 826 is provided on the side wall of the discharge box 8. An elastic telescopic rod 827 is installed on the fixed protrusion 826, and the telescopic section of the elastic telescopic rod 827 is abutted against the fixed section of the telescopic link 825.

[0077] The telescopic section of the telescopic link 825 can be automatically reset, that is, a reset spring is provided inside the telescopic section of the telescopic link 825 (this is existing common knowledge and is not shown again). During the rotation of the rotating shaft 82, the annular block 821 is driven to rotate, and during the rotation of the annular block 821, the linkage block 822 is driven to rotate synchronously in the circumferential direction. During the circumferential rotation, the linkage block 822 contacts the inclined surface. At this time, the linkage block 822 continues to drive the telescopic link 825 to rotate synchronously. At this time, the fixed section of the telescopic link 825 drives the elastic telescopic rod 827 to compress until the elastic telescopic rod 827 reaches the maximum deformation.

[0078] At this time, due to the obstruction of the fixed protrusion 826 and the elastic telescopic rod 827, the telescopic link 825 no longer rotates with the linkage block 822. At this time, the linkage block 822 continues to move and moves along the inclined surface. During the movement of the inclined surface, the linkage block 822 drives the telescopic section of the telescopic link 825 to move toward the side of the annular frame 824, and then the telescopic section of the telescopic link 825 contracts a distance so that the linkage block 822 can give way during the circumferential rotation.

[0079] When the corresponding linkage block 822 passes over the telescopic link 825 , the telescopic section of the telescopic link 825 and the elastic rope telescopic rod are synchronously reset. At this time, the telescopic link 825 synchronously drives the scraper 823 to reset through the annular frame 824 .

[0080] Furthermore, during the rotation of the telescopic link 825, the scraper 823 is synchronously driven by the annular frame 824 to move back and forth along the circumferential surface of the debris discharge box 8. During the movement of the scraper 823 toward the corresponding through-hole 81, the scraper 823 can pass over the corresponding through-hole 81, and then the scraper 823 can remove solid impurities such as plastic bags from the through-hole 81, and move the solid impurities to the gap between the two adjacent groups of through-holes 81, and finally push the removed plastic bags and other solid impurities to the circumferential surface of the debris discharge box 8 through the annular rod 86.

[0081] It should be noted that the length of the telescopic link 825 will not change during the process of the linkage block 822 driving the telescopic link 825 to rotate synchronously through the inclined surface, that is, the telescopic link 825 will not extend or retract before the elastic telescopic rod 827 reaches the maximum deformation.

[0082] Reference Figure 10 as well as Figure 11 In order to prevent the impurities pushed out from the circumferential surface of the impurity box 8 from re-adhering to the surface of the impurity box 8 due to the suction force of the water flow around the through hole 81, the collection frame 21 provided by the present invention can recycle the solid impurities pushed out by the annular rod 86. Specifically, a section of the water suction pipe 2 close to the impurity box 8 is installed with a collection frame 21 with an opening facing the impurity box 8. The inner side wall of the collection frame 21 is evenly provided with multiple connecting protrusions 22 along its circumference. A baffle 23 is installed on the connecting protrusion 22 through a spring hinge, and a limit block 24 is installed on the connecting protrusion 22 to limit the baffle 23.

[0083] During specific operation, the annular rod 86 continues to push the solid impurities into the collection frame 21 after moving out of the impurity discharge box 8. When the solid impurities contact the baffle 23, they continue to move into the collection frame 21. At this time, the impurities and the annular rod 86 push the baffle 23 to swing into the collection frame 21 around the spring hinge until the impurities completely cross the baffle 23 and enter the collection frame 21. It should be noted that the annular rod 86 only touches the baffle 23 during the movement and does not cross the baffle 23, thereby avoiding the possibility of the annular rod 86 colliding with the baffle 23 when entering the collection frame 21 and then exiting.

[0084] The limiting block 24 can limit the baffle 23 to prevent the baffle 23 from swinging away from the collecting frame 21 driven by the water flow, causing the collecting frame 21 to open and causing the solid impurities inside the collecting frame 21 to leak.

[0085] Example 2: Reference Figures 12 to 14 On the basis of embodiment 1, in order to accelerate the discharge of solid impurities stuck inside the through hole 81, the dredging component 88 provided by the present invention can eject the impurities inside the through hole 81. Specifically, a dredging component 88 for dredging the through hole 81 is also provided inside the impurity removal box 8.

[0086] The dredging assembly 88 includes a reciprocating plate 881 corresponding to each set of through holes 81, and the reciprocating plate 881 is installed on the inner wall of the discharge box 8 through a telescopic spring rod 882 symmetrically distributed along its length. The side of the reciprocating plate 881 close to the inner wall of the discharge box 8 is provided with a dredging protrusion 883 corresponding to the through holes 81. The side of the reciprocating plate 881 away from the inner wall of the discharge box 8 is evenly provided with a connecting block 887 along its length. The rotating shaft 82 is located inside the discharge box 8. One section is provided with a bidirectional thread structure, and a reciprocating movable circular plate 884 is connected to the rotating shaft 82 by a threaded pair. An annular plate 885 is installed on the movable circular plate 884 through supporting connecting rods evenly distributed along its circumference. An inclined surface that cooperates with the annular plate 885 is provided on the connecting block 887. A guide connecting rod 886 for guiding the movable circular plate 884 is installed on the inner wall of the debris discharge box 8, and the guide connecting rod 886 and the movable circular plate 884 are slidingly arranged to penetrate.

[0087] One end of the telescopic spring rod 882 is installed on the reciprocating plate 881, and the other end of the telescopic spring rod 882 is installed on the inner wall of the debris removal box 8. During specific operation, the two-way threaded structure drives the movable circular plate 884 to move on the rotating shaft 82 during the rotation of the rotating shaft 82. During this process, the guide connecting rod 886 can limit the movable circular plate 884 so that the movable circular plate 884 moves linearly along the rotating shaft 82, avoiding the synchronous rotation of the movable circular plate 884 around the rotating shaft 82 during the movement. During the movement of the movable circular plate 884, the support rod 87 drives the annular plate 885 to move synchronously, and the annular plate 885 abuts against the inclined surface on the connecting block 887 during the movement.

[0088] At this time, the annular plate 885 and the inclined surface cooperate with each other to drive the connecting block 887 to move toward the inner wall of the impurity discharge box 8. During the movement of the connecting block 887, the reciprocating plate 881 drives the dredging protrusion 883 to move. At this time, the telescopic spring rod 882 is compressed, and the dredging protrusion 883 can enter the through hole 81 during the movement to push out the solid impurities stuck inside the through hole 81, and then cooperate with the previously set scraper 823 to quickly discharge the solid impurities inside the through hole 81.

[0089] When the movable circular plate 884 moves to the side of the water pumping pipe 2, the two-way thread structure can drive the movable circular plate 884 to reset during the rotation of the rotating shaft 82. Repeating the above action can push out the impurities inside the through hole 81 through the dredging protrusion 883.

[0090] It should be noted that the dredging protrusion 883 will not go over the through hole 81 when entering the through hole 81, so as to avoid the dredging protrusion 883 from colliding with the reciprocating scraper 823.

[0091] In order to ensure smooth rotation of the rotating shaft 82 and the driving shaft 63 , the present invention can also use an existing driving motor to drive the rotating shaft 82 and the driving shaft 63 to rotate.

[0092] Finally, refer to Figure 15 The present invention also provides a method for using the waste liquid extraction device, comprising the following steps:

[0093] S1: Prepare for treatment. Place one end of the water extraction pipe 2 with the debris removal box 8 inside the wastewater. Then place the packaging bag on the clamping circular plate 31 and use the lower pressing plate 32 to press the packaging bag onto the clamping circular plate 31 .

[0094] S2: Pumping treatment, the waste liquid is pumped into the extraction cylinder 1 through the pumping pipe 2.

[0095] S3: Exhaust treatment, the waste liquid is pumped into the extraction cylinder 1 through the water pump installed on the extraction pipe 2. During the flow of water in the extraction pipe 2, the spiral blade 65 is driven to generate a rotational torque, which in turn drives the drive shaft 63 to rotate on a fixed axis, and the water dispersion pipe 61 rotates coaxially therewith. The water dispersion pipe 61 forms a dynamic centrifugal force field under the action of centrifugal force, so that the waste liquid forms atomized particles and is evenly projected onto the inner wall surface of the extraction cylinder 1, and then the waste liquid is scattered inside the extraction cylinder 1 through the water dispersion pipe 61, so that the gas inside the waste liquid is discharged. In addition, the stirring shaft 7 drives the stirring rod 71 to rotate synchronously during rotation, which can also discharge the gas inside the waste liquid.

[0096] S4: Collection and processing. The escaping gas enters the space above the liquid level inside the extraction cylinder 1. When the gas reaches a certain pressure, it is discharged outward through the air valve 4. Then, the water pump on the drain pipe 3 cooperates with the drain pipe 3 to extract the waste liquid into the packaging bag. Finally, the packaging bag is heat-sealed, so that the waste liquid can be extracted, collected and processed.

[0097] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0098] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A waste liquid extraction device, comprising an extraction cylinder (1), a water extraction pipe (2) and a water discharge pipe (3) being installed on the top of the extraction cylinder (1), and an air valve (4) being installed on the top of the extraction cylinder (1), characterized in that: The water extraction pipe (2) is provided with a water dispersion mechanism (6) at one end located inside the extraction cylinder (1), and a stirring shaft (7) is installed inside the extraction cylinder (1), wherein: The stirring shaft (7) is installed inside the extraction cylinder (1) through a bearing, and the top of the stirring shaft (7) passes through the top of the extraction cylinder (1). Two groups of stirring rods (71) are symmetrically arranged on the stirring shaft (7) along its axis direction. Each group of stirring rods (71) is evenly arranged along the length direction of the stirring shaft (7), and the stirring rods (71) can swing along the axis direction of the stirring shaft (7); The water dispersion mechanism (6) comprises: A water spreading pipe (61) is horizontally arranged at the bottom of the water pumping pipe (2) and abuts against the bottom of the water pumping pipe (2). A connecting plate (62) is provided inside the water spreading pipe (61); A drive shaft (63) is mounted on the connecting plate (62); The fixing frame (64) is installed at one end of the water extraction pipe (2) located inside the extraction cylinder (1), and the driving shaft (63) is installed on the fixing frame (64) through a bearing, and a spiral blade (65) is installed on the driving shaft (63).

2. A waste liquid extraction device according to claim 1, characterized in that: The length of the stirring rod (71) on the side close to the water extraction pipe (2) increases from the bottom of the extraction cylinder (1) to the top of the extraction cylinder (1), and the length of the stirring rod (71) on the side close to the water discharge pipe (3) decreases from the bottom of the extraction cylinder (1) to the top of the extraction cylinder (1).

3. The waste liquid extraction device according to claim 1, characterized in that: A through groove is provided on the stirring shaft (7), and the stirring rod (71) is installed inside the through groove via a hinge shaft. A pull rod (72) is provided inside the stirring shaft (7) and slides through the stirring shaft (7) along its length direction. A telescopic section is provided at one end of the stirring rod (71) close to the pull rod (72), and the telescopic section of the stirring rod (71) is installed on the pull rod (72) via a hinge.

4. The waste liquid extraction device according to claim 1, characterized in that: A clamping circular plate (31) is provided at one end of the water discharge pipe (3) away from the extraction cylinder (1), and a lower pressure plate (32) matching the clamping circular plate (31) is installed on the water discharge pipe (3) through a threaded connection.

5. The waste liquid extraction device according to claim 1, characterized in that: A debris box (8) is installed at one end of the water extraction pipe (2) away from the water dispersion pipe (61), and through holes (81) are evenly opened on the circumferential surface of the debris box (8). A rotating shaft (82) is rotatably installed on the side of the debris box (8) away from the water extraction pipe (2), and a section of the rotating shaft (82) located outside the debris box (8) is provided with a bidirectional thread structure. A reciprocating moving block (83) is connected to the rotating shaft (82) by a thread pair matching mode. A guide rod (84) is installed on the side wall of the debris box (8), and the guide rod (84) is slidably arranged on the moving block (83) at one end away from the debris box (8). One end of the rotating shaft (82) located inside the impurity discharge box (8) is arranged inside the water pumping pipe (2), and the portion of the rotating shaft (82) arranged inside the water pumping pipe (2) is installed with a second spiral blade (85).

6. The waste liquid extraction device according to claim 5, characterized in that: An annular rod (86) is sleeved on the circumferential surface of the debris removal box (8), a support rod (87) is provided on the moving block (83), and one end of the support rod (87) away from the moving block (83) is connected to the annular rod (86).

7. The waste liquid extraction device according to claim 6, characterized in that: An annular block (821) is mounted on the rotating shaft (82), and a plurality of linkage blocks (822) are evenly mounted on the circumferential surface of the annular block (821) in the circumferential direction. A plurality of scrapers (823) are evenly mounted on the circumferential surface of the debris discharging box (8) along the circumferential direction thereof, and the scrapers (823) are in contact with the circumferential surface of the debris discharging box (8) and are located inside the annular rod (86). An annular frame (824) is mounted on the scrapers (823), and a telescopic link (825) is mounted on the inner wall of the annular frame (824). The telescopic section of the telescopic link (825) is provided with an inclined surface matched with the linkage block (822). A fixed protrusion (826) is mounted on the side wall of the debris discharging box (8), and an elastic telescopic rod (827) is mounted on the fixed protrusion (826), and the telescopic section of the elastic telescopic rod (827) is in contact with the fixed section of the telescopic link (825).

8. The waste liquid extraction device according to claim 5, characterized in that: A section of the water extraction pipe (2) close to the impurity discharge box (8) is provided with a collecting frame (21) with an opening facing the impurity discharge box (8). The inner side wall of the collecting frame (21) is evenly provided with a plurality of connecting protrusions (22) along its circumference. A baffle (23) is installed on the connecting protrusion (22) via a spring hinge, and a limiting block (24) is installed on the connecting protrusion (22) for limiting the baffle (23).

9. The waste liquid extraction device according to claim 5, characterized in that: A dredging component (88) for dredging the through hole (81) is also provided inside the debris removal box (8).

10. A method for using a waste liquid extraction device, comprising the waste liquid extraction device according to any one of claims 1 to 9, characterized in that: The method of use includes the following steps: S1: Prepare for treatment, place one end of the water extraction pipe (2) with the impurity discharge box (8) inside the wastewater, then place the packaging bag on the clamping circular plate (31) and use the lower pressing plate (32) to press the packaging bag onto the clamping circular plate (31); S2: Pumping treatment, the waste liquid is pumped into the extraction cylinder (1) through the pumping pipe (2); S3: exhaust treatment, scattering the waste liquid into the inside of the extraction cylinder (1) through the water scattering pipe (61) so that the gas inside the waste liquid is discharged; S4: Collection and treatment: the waste liquid inside the extraction cylinder (1) is pumped into a packaging bag through the drain pipe (3).

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