Water treatment system and treatment method applied to production of oxygen absorbent for food packaging

Abstract

The invention relates to a water treatment system applied to production of an oxygen absorbent for food packaging, and belongs to the technical field of cooling water treatment.The water treatment system comprises a cooling tower and a water injection pipe, an exhaust fan is installed in the cooling tower, a filter pipe is rotationally arranged in the cooling tower, the water injection pipe penetrates through the filter pipe and is coaxial with the filter pipe, and the filter pipe is wrapped with a filter screen; one end of the water injection pipe extends out of the cooling tower and is connected with an external pipeline, a long drainage hole is formed in the circumferential face of the water injection pipe in the length direction, the projection of the long drainage hole on the circumferential face of the water injection pipe is obliquely arranged, a driving assembly and a linkage assembly are installed on the cooling tower, and the linkage assembly is connected with an exhaust fan and the driving assembly. The driving assembly is connected with the filter pipe and the water injection pipe, the exhaust fan drives the linkage assembly to control the driving assembly to start, and the driving assembly controls the filter pipe and the water injection pipe to synchronously rotate in opposite directions. The cooling device has the effects of providing continuous and clean cooling water for large-yield production of the oxygen-absorbing master batch and reducing the occupied space.

Description

Technical Field

[0001] The present application relates to the technical field of cooling water treatment, and in particular to a water treatment system and a treatment method for producing oxygen absorbers for food packaging. Background Art

[0002] In the food packaging industry, the production process of oxygen absorbers is one of the key steps to ensure food preservation. In the synthesis process of oxygen absorbers, it is usually necessary to add oxygen absorbing components to the liquid in a molten state for mixing and even reaction. Although this method can directly obtain raw materials with oxygen absorption ability, it also limits the diversity of downstream raw materials and products. In addition, this process can only perform simple physical blending and cannot achieve the efficient shear mixing effect provided by a twin-screw extruder. Due to poor mixing uniformity and large particle size of the dispersed phase, it may eventually affect the oxygen absorption effect of the oxygen absorber and the molding performance of the packaging bottle, thereby affecting the quality of the product and the food preservation function.

[0003] In view of the above situation, the patent with publication number CN114806165A discloses an oxygen absorbing masterbatch for food packaging and its preparation device and method. The method prepares component A (a mixture of nylon MXD6 and PET) and component B (a mixture of PET and catalyst cobalt salt masterbatch) in the oxygen absorbing masterbatch separately, mixes them in a certain proportion and performs twin-screw extrusion. This method effectively improves the mixing effect of the oxygen absorber, improves the oxygen absorption capacity and the molding performance of the packaging bottle.

[0004] In the production process of the oxygen absorber, after the A and B components pass through the twin-screw extruder, they need to be cooled through a circulating water cooling tank so that the materials can solidify quickly and maintain the required physical form. At this time, the quality of the cooling water is crucial to the quality of the final product. During the cooling process, impurities in the circulating cooling water may affect the uniformity of the oxygen absorber particles, resulting in unsatisfactory oxygen absorption effects and even affecting the freshness of food packaging. Therefore, the cleanliness and filtration effect of cooling water have become key factors that cannot be ignored in the production of oxygen absorbers.

[0005] At present, the common cooling water treatment methods mainly include cooling water through cooling towers. After the cooled water passes through a sedimentation tank to settle impurities, it is pumped into a water storage tank for storage and subsequent use. Although the sedimentation process in the sedimentation tank can remove some impurities, this process often takes a long time, and the effect of treating impurities by sedimentation is poor. At the same time, when the production volume is large, the capacity and processing time of the sedimentation tank may become a bottleneck limiting production efficiency. Then it is usually necessary to store more cooling water in advance, but when the production volume is low, storing too much cooling water will take up plant space. Summary of the invention

[0006] In order to provide continuous clean cooling water for large-scale production of oxygen absorber masterbatch and reduce floor space, the present application provides a water treatment system and a treatment method for the production of oxygen absorbers for food packaging.

[0007] The present application provides a water treatment system for the production of oxygen absorbents for food packaging, which adopts the following technical solutions: A water treatment system for the production of oxygen absorbers for food packaging, comprising a cooling tower and a water injection pipe, wherein an exhaust fan is installed in the cooling tower, a filter pipe is rotatably arranged in the cooling tower, the water injection pipe passes through the filter pipe and the two are coaxial, the filter pipe is wrapped with a filter screen, the exhaust fan is located above the filter screen, the water injection pipe is horizontally arranged, one end of the water injection pipe extends out of the cooling tower and is connected to an external pipeline, the circumferential surface of the water injection pipe is provided with drainage long strip holes along its length, and the projection of the drainage long strip holes on the circumferential surface of the water injection pipe is inclined, a driving assembly and a linkage assembly are installed on the cooling tower, the linkage assembly is connected to the exhaust fan and the driving assembly, the driving assembly is connected to the filter pipe and the water injection pipe, the exhaust fan drives the linkage assembly to control the start of the driving assembly, and the driving assembly controls the filter pipe and the water injection pipe to rotate synchronously in opposite directions.

[0008] By adopting the above technical solution, when the exhaust fan is started, an airflow from bottom to top is formed inside the cooling tower. At the same time, the exhaust fan drives the linkage assembly to move, and then the driving assembly drives the filter pipe and the water injection pipe to rotate in opposite directions, and the used cooling water is injected into the water injection pipe. The cooling water passes through the drainage long holes, the filter pipe and the filter screen in turn, and then the water and the airflow form heat exchange for water cooling.

[0009] Due to the arc-shaped design of the drainage strip hole, and the fact that water can only gather at the bottom of the water injection pipe under the action of gravity, when the head end of the drainage strip hole rotates to the bottom of the water injection pipe, the water can only be discharged from the head end of the drainage strip hole. Therefore, the filter net at the part opposite to the head end of the drainage strip hole plays a filtering role at this time. As the water injection pipe rotates, the head end of the drainage strip hole leaves the bottom of the water injection pipe, and the middle part of the drainage strip hole rotates to the bottom of the water injection pipe. At this time, the water can only be discharged from the middle part of the drainage strip hole. Therefore, the filter net at the part opposite to the middle part of the drainage strip hole plays a filtering role at this time. Therefore, by analogy, as the water injection pipe rotates, the water will be evenly discharged along the length direction of the water injection pipe. This avoids the situation in the traditional design where the filter net in some areas is blocked due to the concentration of water at one end of the water injection pipe. In this way, the filter net can maintain a high filtering effect for a long time and does not need to be replaced frequently.

[0010] At the same time, when the water injection pipe rotates, the filter screen and the filter tube rotate in opposite directions at the same time. This design not only increases the filtration area in a limited space, but also enables each part of the filter screen to fully and evenly play a filtering role, further realizing long-term filtration. There is no need to frequently replace the filter screen, and it is suitable for application in large-scale production.

[0011] The rotation of the water injection pipe and the filter pipe can cause the water to be thrown out to form multiple water droplets, increasing the contact area between water and airflow, thereby improving the cooling effect of the water and ensuring that the cooling tower can complete the cooling task efficiently and continuously.

[0012] Since this design integrates the filtering and cooling functions, the cooling water is filtered and directly cooled, so there is no need for traditional sedimentation tanks and water tanks to store and treat water, which greatly reduces the floor space and eliminates the sedimentation step. It can maintain long-term continuous production and is particularly suitable for large-scale production environments.

[0013] Optionally, the driving assembly includes a first mounting frame, which is mounted on the cooling tower, and a first bevel gear and a second bevel gear are rotatably connected to the first mounting frame. The first bevel gear, the second bevel gear, the filter tube and the water injection pipe are coaxial, and the second bevel gear is arranged away from the cooling tower relative to the first bevel gear. The water injection pipe passes through the first bevel gear and is keyed to the second bevel gear. The filter tube is connected to the first bevel gear, and a third bevel gear is mounted on the first mounting frame. The third bevel gear is located between the first bevel gear and the second bevel gear, and the first bevel gear and the second bevel gear are both meshed with the third bevel gear. The linkage assembly is used to control the rotation of the third bevel gear.

[0014] By adopting the above technical solution, the rotation of the third bevel gear synchronously drives the first bevel gear and the second bevel gear to rotate in the opposite direction, thereby timing the filter tube and the water injection tube to rotate in the opposite direction.

[0015] Optionally, the linkage assembly includes a first worm gear and a second worm gear, the exhaust fan is coaxially connected to the first worm, the cooling tower is rotatably connected to a transmission rod, the first worm gear is coaxially arranged on the transmission rod, the first worm gear is meshed with the first worm, and the end of the transmission rod extending out of the cooling tower is arranged as a worm spiral segment, a speed change component is installed on the first mounting frame, the second worm gear is rotatably arranged on the speed change component, the second worm gear is meshed with the worm spiral segment, and the speed change component is used to adjust the speed ratio of the second worm gear to the third bevel gear.

[0016] By adopting the above technical solution, the exhaust fan drives the first worm to rotate, the first worm drives the first worm wheel to rotate, the first worm wheel drives the transmission rod to rotate, the transmission rod drives the second worm wheel to rotate, and the second worm wheel drives the speed changer to control the third bevel gear to rotate. The speed changer can adjust the speed of the third bevel gear to avoid the water injection pipe and the filter pipe from rotating too fast when the output power of the exhaust fan is increased, thereby reducing the risk of damage to the water injection pipe and the filter pipe due to increased friction / overheating and other problems.

[0017] Optionally, the speed change member includes a transmission shaft, which is rotatably connected to the first mounting frame, the rotating shaft of the third bevel gear and the transmission shaft are connected through a gear set, an adjusting sleeve is sleeved on the transmission shaft, the adjusting sleeve is connected to the transmission shaft with a flat key, a first driven gear and a second driven gear are coaxially fixed to the adjusting sleeve, an adjusting member for driving the adjusting sleeve to slide is installed on the cooling tower, the rotating shaft of the second worm gear is rotatably connected to the adjusting member, and the rotating shaft of the second worm gear is installed with a first driving gear for meshing with the first driven gear and a second driving gear for meshing with the second driven gear, the size of the first driving gear is larger than the size of the second driving gear, the size of the first driven gear is smaller than the size of the second driven gear, and when the first driven gear is meshed with the first driving gear, the second driven gear is staggered with the second driving gear.

[0018] By adopting the above technical solution, when the temperature of the used cooling water is high, it is necessary to increase the speed of the exhaust fan, thereby increasing the air flow rate, taking away the heat of the cooling water more quickly, and ensuring that the water discharged from the cooling tower is suitable for cooling work; At this time, the machine can be stopped briefly, and then the adjusting member drives the adjusting sleeve to move, so that the first driving gear and the first driven gear are staggered, and the second driving gear and the second driven gear are meshed, thereby adjusting the speed ratio of the rotating shaft of the second worm gear and the transmission shaft, so that when the speed of the exhaust fan is accelerated, the speed of the transmission shaft will not increase significantly, avoiding a significant increase in the speed of the third bevel gear, thereby avoiding the water injection pipe and the filter pipe from rotating too fast and causing damage to both.

[0019] Optionally, the adjusting member includes a mounting seat, the mounting seat is mounted on the first mounting frame, a cylinder is mounted on the mounting seat, a piston rod of the cylinder is rotatably connected to the end of the adjusting sleeve, and a rotating shaft of the second worm gear is rotatably connected to the mounting seat.

[0020] By adopting the above technical solution, the cylinder drives the adjusting sleeve to slide, thereby changing the positional relationship between the first driving gear and the first driven gear, and the positional relationship between the second driving gear and the second driven gear.

[0021] Optionally, the cooling tower is provided with two relatively arranged mounting holes, the orthographic projection of the filter tube is T-shaped, a plurality of plug-in columns are arranged on one end face of the filter tube, a support seat is coaxially mounted with the first bevel gear, a plurality of the plug-in columns are commonly plugged into the support seat, the support seat is installed and adapted in one of the mounting holes, the water injection pipe passes through the support seat, and the end of the filter tube away from the first bevel gear is installed and adapted in the other mounting hole.

[0022] By adopting the above technical solution, when installing the water injection pipe and the filter pipe, the water injection pipe is first passed through the second bevel gear, the first bevel gear and then the cooling tower in sequence, and then the filter pipe is inserted from the side of the cooling tower away from the first bracket until the plug-in column is inserted into the support seat, and the other end of the filter pipe is installed in the installation hole, and the installation of the water injection pipe and the filter pipe is completed. During the installation process, there is no need to disassemble the cooling tower, and during the installation process, the water injection pipe guides the filter pipe, making it easy to insert the plug-in column into the support seat, facilitating installation and disassembly, and making later maintenance and replacement more efficient.

[0023] Optionally, a second mounting frame is installed on the side of the cooling tower away from the first mounting frame, and two movable plates arranged opposite to each other are penetrated on the side of the second mounting frame away from the cooling tower, and the opposite surfaces of the two movable plates are set as semicircular arc surfaces, and a first pin hole and at least two second pin holes are opened on the movable plate, and a pin seat is installed on the second mounting frame, and a pin is penetrated on the pin seat, and one end of the water injection pipe away from the first mounting frame extends out of the cooling tower and rests on the movable plate; When the latch pin passes through the pin seat and the first pin hole, the two movable plates abut against each other, and two semicircular arc surfaces form a circular hole adapted to the water injection pipe; When the latch pin passes through the pin seat and the second pin hole, the two movable plates are separated from each other; A temporary support is also installed on the second mounting frame, and the temporary support is located below the filter tube. An adjustment member is provided on the second mounting frame, and the adjustment member is used to control the lifting and lowering of the temporary support.

[0024] By adopting the above technical solution, under normal circumstances, when the filter screen is wrapped on the filter tube, the circumference of the filter screen is flush with the circumference of the two ends of the filter tube. When installing the water injection pipe and the filter tube, first control the adjustment member to adjust the temporary support to rise, pass the water injection pipe through the second bevel gear, the first bevel gear, the cooling tower and the two movable plates in sequence, and place the water injection pipe on the temporary support, and then adjust the spacing between the two movable plates so that the filter screen can be placed on the movable plate. Then push the filter tube to move, so that the end of the water injection pipe away from the first mounting frame is first inserted into the filter tube, and then the filter tube is placed on the movable plate. When the filter tube is continuously pushed close to the temporary support, the temporary support is lowered and the filter tube is continuously pushed through the mounting hole, and the temporary support is re-adjusted to support the filter screen, and then the filter tube is continuously pushed until the end of the water injection pipe away from the first mounting frame is exposed from the filter tube, and at this time, the two movable plates are adjusted to be close to each other until the first pin hole is aligned with the pin seat, the pin passes through the first pin hole and the pin seat, and the end of the water injection pipe is supported on the movable plate, and finally the plug column is pushed into the support seat to complete the installation.

[0025] During the removal of the filter tube and the water injection pipe, adjust the two movable plates to move away from each other, and then pull out the filter tube first. During the extraction process, the filter screen is placed on the movable plate. When the filter tube leaves the cooling tower and the water injection pipe is exposed, adjust the temporary support to rise and support the water injection pipe, then pull out the filter screen completely, and then directly pull out the water injection pipe.

[0026] During the installation process, the setting of temporary supports avoids the deformation of the water injection pipe due to cantilevering during the installation and removal process. In addition, in the process of pushing the filter tube, the filter tube is supported on the installation hole and the movable plate, which is convenient for workers to move the filter tube directly out horizontally, and the pushing and pulling are smooth, which reduces the deformation of the water injection pipe caused by squeezing during the process of pulling and pulling the filter tube, and reduces the damage of the equipment during the replacement process.

[0027] Optionally, the adjustment member includes a rotating sleeve, which is rotatably connected to the second mounting frame, and the temporary support is equipped with an adjusting screw, which passes through the second mounting frame and is threadedly connected to the rotating sleeve. The second mounting frame is slidably connected to a plurality of sliding blocks, and the sliding blocks are hinged with diagonal support rods, and the diagonal support rods are hinged to the temporary support.

[0028] By adopting the above technical solution, the diagonal support rod limits the rotation of the temporary support, so by manually rotating the rotating sleeve, the adjusting screw can be moved up and down, thereby realizing the lifting and lowering of the temporary support.

[0029] Optionally, the cooling tower includes an upper shell and a base, a vent is opened at the bottom of the upper shell, a connecting frame is installed in the vent, the connecting frame is connected to a plurality of connecting rods, the connecting rods are connected to the base, a filter sleeve is installed along the outer circumference of the base, the filter grille is connected to the upper shell, the water inlet end of the water injection pipe is rotatably connected to the filter shell, the filter shell has a built-in coarse filter screen, the base is connected to a drain pipe, and the drain pipe is connected to a TDS sensor.

[0030] By adopting the above technical solution, the used cooling water first passes through a coarse filter to separate large particles and impurities in the cooling water, and then the water is discharged into the cooling tower for filtering fine particles, suspended matter and tiny impurities. The airflow can flow into the upper shell from the space between the upper shell and the base. The filter sleeve can filter particulate matter in the air during the inhalation process, reduce pollution to the filtered cooling water, and improve the stability of the water quality. The cooling water is collected in the base and then discharged through the drain pipe. The TDS sensor detects the water quality in real time. According to the detection results of the TDS sensor, the machine can be stopped in time for inspection and replacement of the filter, thereby reducing the risk of product contamination.

[0031] The present application also provides a water treatment system for the production of oxygen absorbents for food packaging, which adopts the following technical solution; A water treatment method for producing an oxygen absorbent for food packaging comprises the following steps: S1. Pretreatment of cooling water: preliminarily filter the used cooling water through a coarse filter to remove larger particles and impurities in the water; S2, fine filtration, the water after preliminary filtration flows into the cooling tower and passes through the filter tube and filter screen to remove fine particles, suspended matter and tiny impurities in the water; S3. Establishment of cooling water circulation system. After cooling water is thrown out from the filter, it exchanges heat with the air flow in the cooling tower; S4. Monitor the water quality after the cooling water is discharged from the cooling tower; S5. If the water quality monitoring is qualified, the cooling water is directly stored in the water tank; if the water quality monitoring is unqualified, the production is stopped and the filter is replaced.

[0032] In summary, the present application includes at least one of the following beneficial technical effects: 1. As the water injection pipe rotates, water will be discharged evenly along the length of the water injection pipe. This avoids the situation in traditional designs where water is concentrated at one end of the water injection pipe, causing the filter screen to be blocked in some areas. In this way, the filter screen can maintain a high filtering effect for a long time and does not need to be replaced frequently; 2. When the water injection pipe rotates, the filter screen and the filter tube rotate in the opposite direction at the same time. This design not only increases the filtering area in a limited space, but also enables each part of the filter screen to fully and evenly play the filtering role, further realizing long-term filtration. There is no need to frequently replace the filter screen, which is suitable for large-scale production; 3. The rotation of the water injection pipe and the filter pipe can cause the water to be thrown out to form multiple water droplets, increasing the contact area between water and air flow, thereby improving the cooling effect of water and ensuring that the cooling tower can efficiently and continuously complete the cooling task; 4. The filtering and cooling functions are integrated into one. The cooling water is filtered and cooled directly. Therefore, the traditional sedimentation tank and water storage tank are no longer needed to store and treat water, which greatly reduces the floor space and eliminates the sedimentation step. It can maintain long-term continuous production and is particularly suitable for large-volume production environments. 5. When the temperature of used cooling water is high, it is necessary to increase the speed of the exhaust fan to increase the airflow velocity, take away the heat of the cooling water faster, and ensure that the water discharged from the cooling tower is suitable for cooling work. At the same time, the speed changer can adjust the speed of the third bevel gear to avoid the injection pipe and the filter pipe from rotating too fast when the output power of the exhaust fan is increased, thereby reducing the risk of damage to the injection pipe and the filter pipe due to increased friction / overheating. 6. The setting of temporary supports avoids the deformation of the water injection pipe due to overhang during installation and removal. In addition, in the process of pushing the filter tube, the filter tube is supported on the installation hole and the movable plate, which is convenient for workers to directly move the filter tube out or push it into the cooling tower horizontally. The push and pull are smooth, and the plug-in column is convenient to insert into the support seat, which is convenient for installation and removal. At the same time, it reduces the deformation of the water injection pipe caused by squeezing the water injection pipe during the process of pulling the filter tube, and reduces the damage of the equipment during the replacement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0034] Figure 2 It is a schematic diagram of the structure of the embodiment of the present application, which is used to reflect the exhaust fan, the vent, the connecting frame and the connecting rod.

[0035] Figure 3 It is a schematic diagram of the structure of the filter tube, the support seat and the water injection pipe used in the embodiment of the present application.

[0036] Figure 4 It is a schematic diagram of the structure of the coarse filter used in the embodiment of the present application.

[0037] Figure 5 It is a schematic structural diagram of an embodiment of the present application for reflecting a second pin hole, a latch pin, a pin seat and an adjusting member.

[0038] Figure 6 yes Figure 2 Enlarged schematic diagram of part A.

[0039] Figure 7 yes Figure 2 Schematic diagram of the enlarged portion B.

[0040] Figure 8 yes Figure 2 Enlarged schematic diagram of part C.

[0041] Description of reference numerals: 1. cooling tower; 11. upper shell; 12. base; 13. vent; 14. connecting frame; 15. connecting rod; 16. filter sleeve; 17. drain pipe; 18. TDS sensor; 19. mounting hole; 2. exhaust fan; 31. support seat; 32. filter pipe; 33. plug-in column; 34. filter screen; 4. water injection pipe; 41. drain strip hole; 5. drive assembly; 51. first mounting frame; 52. first bevel gear; 53. second bevel gear; 54. third bevel gear; 6. linkage assembly; 61. first worm gear; 62. second worm gear; 63. first worm; 64. transmission rod; 641 , worm screw section; 7, filter shell; 71, coarse filter; 8, second mounting bracket; 81, movable plate; 811, semicircular arc surface; 812, first pin hole; 813, second pin hole; 82, pin seat; 83, latch; 84, temporary support; 85, adjustment member; 851, rotating sleeve; 852, adjusting screw; 853, sliding block; 854, diagonal support rod; 9, speed change member; 91, transmission shaft; 92, gear set; 93, adjusting sleeve; 94, first driven gear; 95, second driven gear; 96, adjustment member; 961, mounting seat; 962, cylinder; 97, first driving gear; 98, second driving gear. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-8 Further details of this application The embodiment of the present application discloses a water treatment system for producing oxygen absorbents for food packaging.

[0043] like Figure 1 and Figure 2The water treatment system used in the production of oxygen absorbent for food packaging includes a cooling tower 1, which includes an upper shell 11 and a base 12. A vent 13 is provided at the bottom of the upper shell 11. The diameter of the vent 13 is the inner diameter of the upper shell 11. A connecting frame 14 is installed on the inner wall of the upper shell 11. The connecting frame 14 is located at the vent 13. The connecting frame 14 is connected to a plurality of connecting rods 15. The connecting rods 15 are connected to the base 12. The base 12 is installed with a filter sleeve 16 along its periphery. The filter sleeve 16 is fixed to the bottom wall of the upper shell 11. The base 12 is connected with a drain pipe 17. The drain pipe 17 is connected with a TDS sensor 18. An exhaust fan 2 is installed on the top of the upper shell 11, and the exhaust fan 2 is arranged directly opposite the vent 13.

[0044] like Figure 2 and Figure 3 Two mounting holes 19 are provided on the circumference of both sides of the upper shell 11. The two mounting holes 19 are arranged oppositely. A support seat 31 is installed in one of the mounting holes 19. The support seat 31 is adapted to the mounting hole 19 and can rotate in the mounting hole 19. A filter tube 32 (the filter hole on the filter tube 32 is not shown in the figure) is inserted into the upper shell 11 through the other mounting hole 19. The positive projection of the filter tube 32 is T-shaped. A plurality of plug-in columns 33 are arranged on the end face of the filter tube 32 close to the support seat 31. The plurality of plug-in columns 33 are arranged equidistantly along the circumference of the filter tube 32. All the plug-in columns 33 are inserted into the support seat 31. One end of the filter tube 32 away from the plug-in column 33 is rotated and arranged in another mounting hole 19 and adapted. The filter tube 32 is wrapped with a filter screen 34 along its circumference. The outer circumference of the filter screen 34 is flush with the circumference of the end of the filter tube 32.

[0045] A water injection pipe 4 is coaxially penetrated in the filter tube 32. The water injection pipe 4 and the filter tube 32 are both horizontally arranged. Both ends of the water injection pipe 4 pass through the upper shell 11. The circumferential surface of the water injection pipe 4 is provided with drainage long strip holes 41 along its length, and the projection of the drainage long strip holes 41 on the circumferential surface of the water injection pipe 4 is inclined, that is, the drainage long strip holes 41 are arc-shaped holes.

[0046] like Figure 1 , Figure 2 and Figure 4 The upper shell 11 is equipped with a driving assembly 5 and a linkage assembly 6. The linkage assembly 6 is connected to the exhaust fan 2 and the driving assembly 5. The driving assembly 5 is connected to the filter tube 32 and the water injection pipe 4. The exhaust fan 2 drives the linkage assembly 6 to control the driving assembly 5 to start. The driving assembly 5 controls the filter tube 32 and the water injection pipe 4 to rotate synchronously in opposite directions. In addition, one end of the water injection pipe 4 passes through the driving assembly 5 and is rotatably connected to the filter shell 7. The filter shell 7 has a coarse filter screen 71 built in it.

[0047] like Figure 2 and Figure 5A second mounting frame 8 is installed on the side of the upper shell 11 away from the driving assembly 5. Two movable plates 81 are slidably provided on the side of the second mounting frame 8 away from the upper shell 11. The two movable plates 81 are arranged relatively to each other and can slide up and down. The opposite surfaces of the two movable plates 81 are arranged as semicircular arc surfaces 811. The movable plate 81 is provided with a first pin hole 812 and at least two second pin holes 813 along its length direction. The first pin hole 812 and the plurality of second pin holes 813 are arranged equidistantly, and the first pin hole 812 is away from the semicircular arc surface 811 of the movable plate 81 relative to the second pin hole 813. Pin seats 82 are installed on the top and bottom of the second mounting frame 8. The pin seat 82 is arranged relatively to the movable plate 81, and a pin 83 is penetrated by the pin seat 82.

[0048] When the first pin hole 812 is aligned with the pin seat 82, the two movable plates 81 are spliced ​​with each other, and the two semicircular arc surfaces 811 form a circular hole adapted to the water injection pipe 4, and the end of the water injection pipe 4 away from the driving assembly 5 can be placed on the movable plate 81; When the latch pin 83 passes through the pin seat 82 and the second pin hole 813 , the two movable plates 81 are separated from each other.

[0049] A temporary support 84 is also installed on the second mounting frame 8. The temporary support 84 is located between the upper shell 11 and the movable plate 81. The temporary support 84 is lifted and lowered by an adjusting member 85. The adjusting member 85 includes a rotating sleeve 851, which is rotatably connected to the bottom of the second mounting frame 8. An adjusting screw 852 is fixedly connected to the bottom of the temporary support 84. The adjusting screw 852 passes through the second mounting frame 8 and is threadedly connected to the rotating sleeve 851. The second mounting frame 8 is slidably connected to a plurality of sliding blocks 853. The sliding blocks 853 are hinged with diagonal braces 854, and the diagonal braces 854 are hinged to the temporary support 84.

[0050] During filtration, the used cooling water first passes through the coarse filter 71 to separate large particles and impurities in the cooling water, and then the water is discharged into the upper shell 11 to filter fine particles, suspended matter and tiny impurities.

[0051] The exhaust fan 2 is started to form an airflow from bottom to top inside the upper shell 11. At the same time, the exhaust fan 2 drives the linkage assembly 6 to move, and then the driving assembly 5 drives the filter tube 32 and the water injection pipe 4 to rotate in opposite directions, injecting used cooling water into the water injection pipe 4. The cooling water passes through the drainage long hole 41, the filter tube 32 and the filter screen 34 in turn, and then the water and the airflow form heat exchange for water cooling.

[0052] The cooling water is then collected in the base 12 and then discharged through the drain pipe 17. The TDS sensor 18 detects the water quality in real time. Based on the detection result of the TDS sensor 18, the machine can be stopped for inspection and the filter 34 can be replaced in time.

[0053] In combination with production conditions, a filter tube 32 and a water injection pipe 4 with suitable inner diameters are selected so that when cooling water is injected into the water injection pipe 4, the water injection pipe 4 is always not filled up, that is, the cooling water only fills the lower space in the water injection pipe 4.

[0054] Due to the arc design of the drainage strip hole 41, and the water can only gather at the bottom of the water injection pipe 4 under the action of gravity, when the head end of the drainage strip hole 41 rotates to the bottom of the water injection pipe 4, the water can only be discharged from the head end of the drainage strip hole 41, so the filter net 34 at the part corresponding to the head end of the drainage strip hole 41 plays a filtering role at this time, and as the water injection pipe 4 rotates, the head end of the drainage strip hole 41 leaves the bottom of the water injection pipe 4, and the middle part of the drainage strip hole 41 rotates to the bottom of the water injection pipe 4, and the water can only be discharged from the middle part of the drainage strip hole 41, so the filter net 34 at the part corresponding to the middle part of the drainage strip hole 41 plays a filtering role at this time, so by analogy, as the water injection pipe 4 rotates, the water will be evenly discharged along the length direction of the water injection pipe 4. This avoids the situation in the traditional design where the filter net 34 in some areas is blocked due to the concentration of water at one end of the water injection pipe 4. In this way, the filter net 34 can maintain a high filtering effect for a long time and does not need to be replaced frequently.

[0055] At the same time, when the water injection pipe 4 rotates, the filter screen 34 and the filter tube 32 rotate in opposite directions at the same time. This design not only increases the filtering area within a limited space, but also enables each part of the filter screen 34 to fully and evenly play a filtering role, further realizing long-term filtration. There is no need to frequently replace the filter screen 34, and it is suitable for application in large-scale production.

[0056] The rotation of the water injection pipe 4 and the filter pipe 32 can cause the water to be thrown out to form multiple water droplets, thereby increasing the contact area between the water and the airflow, thereby improving the cooling effect of the water and ensuring that the cooling tower 1 can efficiently and continuously complete the cooling task.

[0057] Since this design integrates the filtering and cooling functions, the cooling water is filtered and directly cooled, so there is no need for traditional sedimentation tanks and water tanks to store and treat water, which greatly reduces the floor space and eliminates the sedimentation step. It can maintain long-term continuous production and is particularly suitable for large-scale production environments.

[0058] When installing the water injection pipe 4 and the filter tube 32, first control the adjustment member 85 to adjust the temporary support 84 to rise, pass the water injection pipe 4 through the drive assembly 5, the upper shell 11 and the two movable plates 81 in sequence, and place the water injection pipe 4 on the temporary support 84, and then adjust the distance between the two movable plates 81 so that the filter screen 34 can be placed on the movable plate 81. Then push the filter tube 32 to move, so that the end of the water injection pipe 4 away from the first mounting frame 51 is first inserted into the filter tube 32, and then the filter tube 32 is placed on the movable plate 81. When the filter tube 32 is continuously pushed close to the temporary support 84, the temporary support 84 is lowered and the filter tube 32 is continued to be pushed through the mounting hole 19, and the temporary support 84 is re-adjusted to support the filter screen 34, and then the filter tube 32 is continued to be pushed until the filter tube 32 is exposed at one end of the water injection pipe 4 close to the second mounting frame 8. At this time, the two movable plates 81 are adjusted to be close to each other until the first pin hole 812 is aligned with the pin seat 82, the pin 83 passes through the first pin hole 812 and the pin seat 82, and the end of the water injection pipe 4 is supported on the movable plate 81. Finally, push the filter tube 32 to insert the plug-in column 33 into the support seat 31 to complete the installation.

[0059] During the removal of the filter tube 32 and the water injection pipe 4, the two movable plates 81 are adjusted to move away from each other, and then the filter tube 32 is pulled out first. During the extraction process, the filter screen 34 is placed on the movable plate 81. When the filter tube 32 leaves the cooling tower 1 and the water injection pipe 4 is exposed, the temporary support 84 is adjusted to rise to support the water injection pipe 4, and then the filter screen 34 is completely pulled out, and then the water injection pipe 4 can be directly pulled out.

[0060] During the installation process, the provision of the temporary support 84 prevents the water injection pipe 4 from being cantilevered and deformed during installation and removal. In addition, in the process of pushing the filter tube 32, the filter tube 32 is supported on the installation hole 19 and the movable plate 81, which is convenient for workers to directly move the filter tube 32 out laterally, and the pulling and pulling are smooth, thereby reducing the squeezing of the water injection pipe 4 in the process of pulling and pulling the filter tube 32, resulting in deformation of the water injection pipe 4, and reducing damage to the equipment during the replacement process.

[0061] like Figure 2 and Figure 6The driving assembly 5 includes a first mounting frame 51, which is mounted on the upper housing 11. A first bevel gear 52 and a second bevel gear 53 are rotatably connected to the first mounting frame 51. The first bevel gear 52, the second bevel gear 53, the filter tube 32 and the water injection pipe 4 are coaxial. The first bevel gear 52 is arranged close to the upper housing 11 relative to the second bevel gear 53. The water injection pipe 4 passes through the first bevel gear 52 and is key-connected with the second bevel gear 53. The support seat 31 is coaxially fixed with the first bevel gear 52. A third bevel gear 54 is mounted on the first mounting frame 51. The central axis of the third bevel gear 54 is perpendicular to the central axis of the first bevel gear 52 and the second bevel gear 53. The third bevel gear 54 is located between the first bevel gear 52 and the second bevel gear 53. The first bevel gear 52 and the second bevel gear 53 are both meshed with the third bevel gear 54. like Figure 2 , Figure 7 and Figure 8 The linkage assembly 6 includes a first worm gear 61 and a second worm gear 62. The exhaust fan 2 is coaxially connected to a first worm 63. A transmission rod 64 is rotatably connected in the upper housing 11. The transmission rod 64 is horizontally arranged. The first worm gear 61 is coaxially fixed on the transmission rod 64. The first worm gear 61 is meshed with the first worm 63. One end of the transmission rod 64 extends out of the upper housing 11. One end of the transmission rod 64 extending out of the upper housing 11 is set as a worm spiral section 641. A speed change member 9 is installed on the top of the first mounting frame 51. The transmission member 9 includes a transmission shaft 91, which is rotatably connected to the first mounting frame 51, and the transmission shaft 91 is vertically arranged. The rotating shaft of the third bevel gear 54 is connected to the transmission shaft 91 through a gear set 92. An adjusting sleeve 93 is sleeved on the top of the transmission shaft 91, and the adjusting sleeve 93 is flat-keyed to the transmission shaft 91. A first driven gear 94 and a second driven gear 95 are coaxially fixed to the adjusting sleeve 93. An adjusting member 96 for driving the adjusting sleeve 93 to slide up and down is installed on the first mounting frame; The adjusting member 96 includes a mounting seat 961, which is mounted on the top of the first mounting frame 51. A cylinder 962 is mounted on the mounting seat 961. The piston rod of the cylinder 962 is rotatably connected to the top of the adjusting sleeve 93. One end of the transmission rod 64 extending out of the upper housing 11 is rotatably connected to the mounting seat 961. The rotating shaft of the second worm gear 62 is rotatably connected to the mounting seat 961. A first driving gear 97 for meshing with the first driven gear 94 and a second driving gear 98 for meshing with the second driven gear 95 are installed on the rotating shaft of the second worm gear 62. The size of the first driving gear 97 is larger than that of the second driving gear 98, and the size of the first driven gear 94 is smaller than that of the second driven gear 95. When the first driven gear 94 is meshed with the first driving gear 97, the second driven gear 95 is staggered with the second driving gear 98.

[0062] When filtering, the exhaust fan 2 is started, the exhaust fan 2 drives the first worm 63 to rotate, the first worm 63 drives the first worm wheel 61 to rotate, the first worm wheel 61 drives the transmission rod 64 to rotate, the transmission rod 64 drives the second worm wheel 62 to rotate, the second worm wheel 62 drives the speed changer 9 to control the third bevel gear 54 to rotate, the rotation of the third bevel gear 54 synchronously drives the first bevel gear 52 and the second bevel gear 53 to rotate in the opposite direction, thereby realizing the reverse rotation of the filter tube 32 and the water injection pipe 4. The speed changer 9 can adjust the speed of the third bevel gear 54 to avoid the situation where the speed of the water injection pipe 4 and the filter tube 32 is too fast when the output power of the exhaust fan 2 is increased, thereby reducing the risk of damage to the water injection pipe 4 and the filter tube 32 due to increased friction / overheating and other problems.

[0063] When the temperature of the used cooling water is high, it is necessary to increase the speed of the exhaust fan 2 to increase the air flow rate, take away the heat of the cooling water more quickly, and ensure that the water discharged from the cooling tower 1 is suitable for cooling work; At this time, the machine can be stopped briefly, and then the cylinder 962 drives the mounting seat 961 to rise and fall, and then the mounting seat 961 drives the adjusting sleeve 93 to move, so that the first driving gear 97 is staggered with the first driven gear 94, and the second driving gear 98 is meshed with the second driven gear 95, thereby adjusting the speed ratio of the rotating shaft of the second worm gear 62 and the transmission shaft 91, so that when the speed of the exhaust fan 2 is accelerated, the speed of the transmission shaft 91 will not increase significantly, thereby avoiding a significant increase in the speed of the third bevel gear 54, thereby avoiding the situation where the speed of the water injection pipe 4 and the filter pipe 32 is too fast and causes damage to both.

[0064] The implementation principle of the embodiment of the present application is as follows: due to the arc design of the drainage strip hole 41, and the water can only gather at the bottom of the water injection pipe 4 under the action of gravity, when the head end of the drainage strip hole 41 rotates to the bottom of the water injection pipe 4, the water can only be discharged from the head end of the drainage strip hole 41, so the filter net 34 at the part corresponding to the head end of the drainage strip hole 41 plays a filtering role at this time, as the water injection pipe 4 rotates, the head end of the drainage strip hole 41 leaves the bottom of the water injection pipe 4, and the middle part of the drainage strip hole 41 rotates to the bottom of the water injection pipe 4, at this time, the water can only be discharged from the middle part of the drainage strip hole 41, so the filter net 34 at the part corresponding to the middle part of the drainage strip hole 41 plays a filtering role at this time, so by analogy, as the water injection pipe 4 rotates, the water will be evenly discharged along the length direction of the water injection pipe 4. This avoids the situation in the traditional design where the filter net 34 is blocked in some areas due to the concentration of water at one end of the water injection pipe 4. In this way, the filter net 34 can maintain a high filtering effect for a long time and does not need to be replaced frequently.

[0065] At the same time, when the water injection pipe 4 rotates, the filter screen 34 and the filter tube 32 rotate in opposite directions at the same time. This design not only increases the filtering area within a limited space, but also enables each part of the filter screen 34 to fully and evenly play a filtering role, further realizing long-term filtration. There is no need to frequently replace the filter screen 34, and it is suitable for application in large-scale production.

[0066] The present application also discloses a water treatment method for the production of oxygen absorbents for food packaging. The water treatment system for the production of oxygen absorbents for food packaging according to the present application includes the following steps: S1, pretreatment of cooling water, preliminary filtering of used cooling water through a coarse filter 71 to remove large particles and impurities in the water; S2, fine filtration, the water after preliminary filtration flows into the cooling tower 1 and passes through the filter tube 32 and the filter screen 34 to remove fine particles, suspended matter and tiny impurities in the water; S3, establishment of a cooling water circulation system, where the cooling water is thrown out from the filter 34 and then exchanges heat with the air flow in the cooling tower 1; S4, monitoring the water quality of cooling water after it is discharged from cooling tower 1; S5. If the water quality monitoring is qualified, the cooling water is directly stored in the water tank; if the water quality monitoring is unqualified, the production is stopped and the filter 34 is replaced.

[0067] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A water treatment system for the production of oxygen absorbents for food packaging, characterized in that: The invention comprises a cooling tower (1) and a water injection pipe (4), wherein an exhaust fan (2) is installed in the cooling tower (1), a filter pipe (32) is rotatably arranged in the cooling tower (1), the water injection pipe (4) passes through the filter pipe (32) and the two are coaxial, a filter screen (34) is wrapped on the filter pipe (32), the exhaust fan (2) is located above the filter screen (34), the water injection pipe (4) is arranged horizontally, one end of the water injection pipe (4) extends out of the cooling tower (1) and is connected to an external pipeline, and a drainage strip hole (41) is opened on the circumference of the water injection pipe (4) along its length. , and the projection of the drainage strip hole (41) on the peripheral surface of the water injection pipe (4) is arranged in an inclined manner, the cooling tower (1) is equipped with a driving component (5) and a linkage component (6), the linkage component (6) is connected to the exhaust fan (2) and the driving component (5), the driving component (5) is connected to the filter tube (32) and the water injection pipe (4), the exhaust fan (2) drives the linkage component (6) to control the driving component (5) to start, and the driving component (5) controls the filter tube (32) and the water injection pipe (4) to rotate synchronously in opposite directions.

2. The water treatment system for producing oxygen absorbent for food packaging according to claim 1 is characterized in that: The driving assembly (5) comprises a first mounting frame (51), the first mounting frame (51) being mounted on the cooling tower (1), a first bevel gear (52) and a second bevel gear (53) being rotatably connected to the first mounting frame (51), the first bevel gear (52), the second bevel gear (53), the filter tube (32) and the water injection pipe (4) being coaxial, the second bevel gear (53) being arranged away from the cooling tower (1) relative to the first bevel gear (52), the water injection pipe (4) passing through the filter tube (32) and the filter tube (32). The first bevel gear (52) is key-connected with the second bevel gear (53); the filter tube (32) is connected with the first bevel gear (52); a third bevel gear (54) is mounted on the first mounting frame (51); the third bevel gear (54) is located between the first bevel gear (52) and the second bevel gear (53); the first bevel gear (52) and the second bevel gear (53) are both meshed with the third bevel gear (54); and the linkage assembly (6) is used to control the rotation of the third bevel gear (54).

3. The water treatment system for producing oxygen absorbent for food packaging according to claim 2 is characterized in that: The linkage assembly (6) comprises a first worm gear (61) and a second worm gear (62); the exhaust fan (2) is coaxially connected to a first worm (63); the cooling tower (1) is rotatably connected to a transmission rod (64); the first worm gear (61) is coaxially arranged on the transmission rod (64); the first worm gear (61) is meshed with the first worm (63); one end of the transmission rod (64) extending out of the cooling tower (1) is arranged as a worm helical segment (641); a speed change component (9) is mounted on the first mounting frame (51); the second worm gear (62) is rotatably arranged on the speed change component (9); the second worm gear (62) is meshed with the worm helical segment (641); the speed change component (9) is used to adjust the speed ratio between the second worm gear (62) and the third bevel gear (54).

4. The water treatment system for producing oxygen absorbent for food packaging according to claim 3 is characterized in that: The speed change member (9) comprises a transmission shaft (91), the transmission shaft (91) is rotatably connected to the first mounting frame (51), the rotating shaft of the third bevel gear (54) and the transmission shaft (91) are connected via a gear set (92), an adjusting sleeve (93) is sleeved on the transmission shaft (91), the adjusting sleeve (93) is key-connected to the transmission shaft (91), a first driven gear (94) and a second driven gear (95) are coaxially fixed on the adjusting sleeve (93), an adjusting member (96) for driving the adjusting sleeve (93) to slide is installed on the cooling tower (1), and the rotation of the second worm gear (62) The shaft is rotatably connected to the adjusting member (96), and the rotating shaft of the second worm gear (62) is provided with a first driving gear (97) for meshing with the first driven gear (94) and a second driving gear (98) for meshing with the second driven gear (95). The size of the first driving gear (97) is larger than the size of the second driving gear (98), and the size of the first driven gear (94) is smaller than the size of the second driven gear (95). When the first driven gear (94) meshes with the first driving gear (97), the second driven gear (95) is staggered with the second driving gear (98).

5. The water treatment system for producing oxygen absorbent for food packaging according to claim 4 is characterized in that: The adjusting member (96) comprises a mounting seat (961), wherein the mounting seat (961) is mounted on the first mounting frame (51), a cylinder (962) is mounted on the mounting seat (961), a piston rod of the cylinder (962) is rotationally connected to the end of the adjusting sleeve (93), and a rotating shaft of the second worm gear (62) is rotationally connected to the mounting seat (961).

6. The water treatment system for producing oxygen absorbent for food packaging according to claim 3 is characterized in that: The cooling tower (1) is provided with two mounting holes (19) arranged opposite to each other. The positive projection of the filter tube (32) is T-shaped. A plurality of plug-in columns (33) are arranged on one end face of the filter tube (32). The first bevel gear (52) is coaxially mounted with a support seat (31). The plurality of plug-in columns (33) are plugged into the support seat (31) together. The support seat (31) is mounted and fitted in one of the mounting holes (19). The water injection pipe (4) passes through the support seat (31). The end of the filter tube (32) away from the first bevel gear (52) is mounted and fitted in the other mounting hole (19).

7. The water treatment system for producing oxygen absorbent for food packaging according to claim 6 is characterized in that: A second mounting frame (8) is installed on the side of the cooling tower (1) away from the first mounting frame (51); two movable plates (81) arranged opposite to each other are penetrated on the side of the second mounting frame (8) away from the cooling tower (1); the opposing surfaces of the two movable plates (81) are arranged as semicircular arc surfaces (811); a first pin hole (812) and at least two second pin holes (813) are opened on the movable plate (81); a pin seat (82) is installed on the second mounting frame (8); a plug pin (83) is penetrated on the pin seat (82); an end of the water injection pipe (4) away from the first mounting frame (51) extends out of the cooling tower (1) and can be placed on the movable plate (81); When the latch pin (83) passes through the pin seat (82) and the first pin hole (812), the two movable plates (81) abut against each other, and the two semicircular arc surfaces (811) form a circular hole that matches the water injection pipe (4); When the latch pin (83) passes through the pin seat (82) and the second pin hole (813), the two movable plates (81) are separated from each other; A temporary support (84) is also installed on the second mounting frame (8), and the temporary support (84) is located below the filter tube (32). An adjustment member (85) is provided on the second mounting frame (8), and the adjustment member (85) is used to control the lifting and lowering of the temporary support (84).

8. The water treatment system for producing oxygen absorbent for food packaging according to claim 7 is characterized in that: The adjusting member (85) comprises a rotating sleeve (851), wherein the rotating sleeve (851) is rotatably connected to the second mounting frame (8); the temporary support (84) is provided with an adjusting screw (852), wherein the adjusting screw (852) passes through the second mounting frame (8) and is threadedly connected to the rotating sleeve (851); the second mounting frame (8) is slidably connected with a plurality of sliding blocks (853), wherein the sliding blocks (853) are hingedly connected with diagonal support rods (854), and the diagonal support rods (854) are hingedly connected to the temporary support (84).

9. The water treatment system for producing oxygen absorbent for food packaging according to claim 1, characterized in that: The cooling tower (1) comprises an upper shell (11) and a base (12); a vent (13) is provided at the bottom of the upper shell (11); a connecting frame (14) is installed in the vent (13); the connecting frame (14) is connected to a plurality of connecting rods (15); the connecting rods (15) are connected to the base (12); a filter sleeve (16) is installed along the outer circumference of the base (12); the filter sleeve (16) is connected to the upper shell (11); the water inlet end of the water injection pipe (4) is rotatably connected to a filter shell (7); a coarse filter screen (71) is built into the filter shell (7); the base (12) is connected to a drain pipe (17); and the drain pipe (17) is connected to a TDS sensor (18).

10. A water treatment method for the production of oxygen absorbents for food packaging, characterized in that: The water treatment system for producing oxygen absorbent for food packaging according to any one of claims 1 to 9 comprises the following steps: S1, pretreatment of cooling water, preliminary filtration of used cooling water through a coarse filter (71); S2, fine filtration, the water after preliminary filtration flows into the cooling tower (1) and passes through the filter pipe (32) and the filter screen (34) to further remove impurities in the water; S3, establishing a cooling water circulation system, wherein the cooling water is thrown out from the filter (34) and then exchanges heat with the air flow in the cooling tower (1); S4, monitoring the water quality of cooling water after it is discharged from the cooling tower (1); S5. If the water quality monitoring is qualified, the cooling water is directly stored in the water tank; if the water quality monitoring is unqualified, the production is stopped and the filter (34) is replaced.

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