Sterilization type oxygen absorbent drying, mixing and vacuum packaging integrated system

Abstract

The invention relates to a sterilization type oxygen absorbent drying, mixing and vacuum packaging integrated system, and relates to the technical field of oxygen absorption master batch production, the sterilization type oxygen absorbent drying, mixing and vacuum packaging integrated system comprises two groups of dryers, a mixing machine, a vacuum generation system, an oil bath circulation system and a nitrogen supply system, the two groups of dryers comprise a first dryer and a second dryer; the dryer comprises a barrel, a swing driving mechanism and two swing shafts, the barrel comprises an inner shell and an outer shell, a heating cavity is formed between the inner shell and the outer shell, each swing shaft is provided with an oil inlet channel and an oil return channel, the outer shell is provided with a guide part in the heating cavity, and a heating channel allowing medium oil to flow is formed among the guide part, the inner shell and the outer shell. The heating channel forms a baffling section at the bottom of the inner shell, and medium oil can flow into the oil return channel along the heating channel and the baffling section. The medium oil flows from bottom to top, so that the medium oil with low temperature and high density is effectively prevented from being accumulated at the bottom of the barrel, materials are dried more uniformly by the medium oil, and the production efficiency of the oxygen absorbent is improved.

Description

Technical Field

[0001] The present application relates to the technical field of oxygen absorbent masterbatch production, and in particular to an integrated system for dry mixing and vacuum packaging of sterilized oxygen absorbents. Background Art

[0002] Sterilizing oxygen absorber is a chemical agent that has both oxygen absorption and sterilization functions. It can not only effectively absorb oxygen in the package to prevent the product from deteriorating due to oxidation, but also inhibit or kill microorganisms in the package to ensure the sterility and safety of the product. This oxygen absorber has been widely used in industry, agriculture, medical and other fields.

[0003] An existing sterilization oxygen absorber includes two components, A and B. Component A includes nylon: 60-68 parts, PET resin: 7-14 parts, SBS: 2.5-3.5 parts, SAM resin: 1-3 parts; component B includes: PET resin: 13-24.5 parts, catalyst: 1.5-2.5 parts. Component A and component B are mixed separately, and then processed through a twin-screw extruder, a cooling trough, an air knife, a pelletizer, and a vibrating screen to obtain the material of component A and the material of component B. Then, components A and B are dried respectively through a double-cone dryer, and then mixed to form the oxygen absorber and packaged.

[0004] like Figure 1 The existing double cone dryer includes an inner shell 91, an outer shell 92 and two rotating shafts 93. The inner shell 91 is fixedly connected to the outer shell 92 and forms a closed heating chamber 94 therebetween. The two rotating shafts 93 are respectively arranged at the middle position of the outer shell 92 and are rotatably connected to the frame to form the swing of the double cone dryer. The high-temperature medium oil is passed into the heating chamber 94 through the oil inlet channel 95 arranged in the rotating shaft 93 to dry the material in the inner shell 91. The medium oil flows back to the oil bath circulation system through the reflux channel 96 in another rotating shaft 93, and the dried material is discharged from the discharge port at the bottom. However, since the density of the medium oil decreases with the increase of temperature, the medium oil with high density and low temperature after heat exchange gathers at the bottom of the heating chamber 94, and is not easy to flow back to the oil bath circulation system through the reflux channel 96, so that the medium oil dries the material unevenly, resulting in low drying efficiency, thereby reducing the production efficiency of the oxygen absorbent. Summary of the invention

[0005] In order to improve the problem that the medium oil in the dryer dries the material unevenly, resulting in low drying efficiency and reduced production efficiency of the oxygen absorber, the present application provides a sterilization type oxygen absorber dry mixing and vacuum packaging integrated system.

[0006] The present application provides a sterilization oxygen absorbent dry mixing and vacuum packaging integrated system adopts the following technical solutions: A sterilization type oxygen absorber dry mixing and vacuum packaging integrated system, comprising two groups of dryers, a mixer, a vacuum generating system, an oil bath circulation system and a nitrogen supply system, the two groups of dryers are divided into a first dryer and a second dryer, the first dryer can dry component A, the second dryer can dry component B, the mixer can mix components A and B, the vacuum generating system is connected to the first dryer, the second dryer and the mixer, so as to generate a vacuum environment in the first dryer, the second dryer and the mixer, the oil bath circulation system is connected to the first dryer, the second dryer, and the mixer, so as to generate a drying environment in the first dryer and the second dryer, the nitrogen supply system is connected to the first dryer, the second dryer and the mixer, so as to introduce nitrogen into the first dryer, the second dryer and the mixer, a packaging machine is provided at the bottom of the mixer, and the packaging machine can perform vacuum packaging on the output of the mixer; The dryer comprises a cylinder, a swing drive mechanism and two swing shafts, wherein the two swing shafts are relatively fixedly connected to both sides of the cylinder along the horizontal direction and are rotatably connected to the frame so that the cylinder can rotate around the swing shafts, and the swing drive mechanism is connected to the swing shafts so as to drive the cylinder to swing back and forth; The cylinder includes an inner shell and an outer shell, a heating chamber is formed between the inner shell and the outer shell, a chamber for holding materials is formed in the inner shell, the two swing shafts are fixedly connected to the outer shell, an oil inlet channel and an oil return channel connected to the oil bath circulation system are provided on the swing shaft, the outer shell is provided with a guide member in the heating chamber, a heating channel for medium oil flow is formed between the guide member and the inner shell and the outer shell, the heating channel forms a baffle at the bottom of the inner shell, and the medium oil flowing out of the oil inlet channel can flow into the oil return channel along the heating channel and the baffle.

[0007] By adopting the above technical scheme, when the oxygen absorber is mixed and dried, component A and component B are respectively introduced into the first dryer and the second dryer, the vacuum generating system evacuates the cylinders of the first dryer and the second dryer, and then the oil bath circulation system passes the medium oil through the heating chamber to heat the materials in the first dryer and the second dryer, and then the swing drive mechanism drives the cylinder to swing through the swing shaft to accelerate the drying process of the materials in the cylinder. After the drying of component A and component B is completed, nitrogen is introduced into the cylinder through the nitrogen supply system to release the vacuum state, and then the dried component A and component B are introduced into the mixer for mixing, and the mixing process is still in a vacuum state. After mixing, the nitrogen supply system introduces nitrogen into the mixer, and then the oxygen absorber in the mixer is vacuum packaged by the packaging machine to complete the mixing, drying and packaging of the oxygen absorber.

[0008] When the medium oil enters the heating chamber from the oil inlet channel, the medium oil flows along the heating channel toward the bottom of the cylinder. When the medium oil passes through the baffle, the medium oil flows upward along the heating channel close to the inner shell side. The medium oil and the inner shell produce heat exchange to heat and dry the material in the inner shell. Then the medium oil returns to the oil bath circulation system through the oil return channel. In this process, the medium oil flows from bottom to top, which can increase the degree of disturbance of the medium oil in the vertical direction, thereby effectively avoiding the accumulation of low-temperature and high-density medium oil at the bottom of the cylinder, so that the medium oil dries the material more evenly, thereby improving the production efficiency of the oxygen absorber.

[0009] Preferably, the inner shell is rotatably connected to the outer shell, and the outer shell is provided with a rotation driving mechanism capable of driving the inner shell to rotate; The guide member includes a guide cylinder, which is arranged parallel to the inner shell and the outer shell. The guide cylinder, the inner shell and the outer shell are all rotatably arranged. The guide cylinder is connected to the outer shell through a mounting assembly, and the inner shell is connected to the guide cylinder through a transmission assembly to drive the guide cylinder to rotate in the opposite direction.

[0010] By adopting the above technical solution and using a driving mechanism to drive the inner shell to rotate, the agitation of the material in the inner shell and the uniformity of the heat exchange between the inner shell and the medium oil can be increased, thereby accelerating the drying rate and uniformity of components A and B.

[0011] When the inner shell rotates, the inner shell drives the guide cylinder to rotate in the opposite direction through the transmission assembly. This is because when the inner shell rotates, due to the influence of the drag effect, the medium oil will rotate with the inner shell, which can easily lead to uneven local heat exchange. The reverse rotation of the guide cylinder is used to interfere with the boundary layer flow near the original object surface, disrupt the original flow structure, and reduce the velocity gradient in the boundary layer, thereby reducing the drag effect and improving the uniformity of heat exchange between the medium oil and the inner shell.

[0012] Preferably, the mounting assembly includes a mounting ring plate, which is fixedly arranged on the inner wall of the outer shell, and a support portion is formed on the guide cylinder which can overlap the mounting ring plate. The support portion is slidably fitted with the mounting ring plate to enable the medium oil to form a unidirectional flow in the heating channel.

[0013] By adopting the above technical solution, the support part is overlapped on the mounting ring plate to achieve support of the guide cylinder in the heating chamber, thereby improving the stability of the guide cylinder when it rotates.

[0014] Preferably, an oil guide pipe connected to the oil return channel is provided on the swing shaft, and the oil guide pipe passes through the connecting arrangement of the mounting ring plate and the end of the heating channel so that the medium oil can flow back to the oil return channel along the oil guide pipe.

[0015] By adopting the above technical solution, the medium oil flows along the heating channel to the top of the mounting ring plate, separating the oil inlet and oil return of the medium oil, so that the medium oil forms a single flow path during the flow process, effectively avoiding the phenomenon of the temperature of the oil inlet being reduced due to the mutual leakage of the oil inlet and the oil return, reducing the heat loss of the oil inlet, and improving the heat exchange efficiency between the oil inlet and the inner shell.

[0016] Preferably, a lubrication ring groove is provided on the mounting ring plate, a sealing ring strip capable of being arranged in cooperation with the lubrication ring groove is provided on the support portion, a plurality of inclined guide surfaces are provided on the sealing ring strip on the side facing the bottom wall of the lubrication ring groove, a wedge-shaped space is formed between each of the inclined guide surfaces and the bottom wall of the lubrication ring groove, the large end of each of the wedge-shaped spaces faces the rotation direction of the support portion, an oil guide channel connected to the large end of the wedge-shaped space is provided on the support portion, and the oil guide channel penetrates to the top wall of the support portion so that medium oil can flow into the wedge-shaped space.

[0017] By adopting the above technical solution, the sealing performance between the mounting ring plate and the support part can be increased by using the cooperation between the sealing ring strip and the lubricating ring groove. When the guide cylinder rotates, the medium oil flows into the wedge-shaped space from the large end of the wedge-shaped space through the oil guide channel. The medium oil will be squeezed during the movement of the medium space, which will generate an upward thrust on the support part, which can offset the pressure of the guide cylinder on the mounting ring plate and reduce the friction between the support part and the mounting ring plate.

[0018] Preferably, an oil guide hopper is protruded outwardly from the support portion, an inlet of the oil guide hopper faces the medium oil, and an outlet of the oil guide hopper is communicated with the oil guide channel.

[0019] By adopting the above technical solution, when the support part rotates, the medium oil enters from the inlet of the oil guide bucket and enters the oil guide channel along the outlet of the oil guide bucket, which facilitates the medium oil to flow into the wedge-shaped space.

[0020] Preferably, the transmission assembly includes a driving gear, a steering gear and a driven gear, the driving gear is coaxially fixed on the outer wall of the inner shell, the driven gear is coaxially fixed on the inner wall of the guide cylinder, the steering gear is rotatably set on the outer shell and is located between the driving gear and the driven gear, and is meshed with the driving gear and the driven gear.

[0021] By adopting the above technical solution, the inner shell drives the driving gear to rotate, the driving gear drives the steering gear to rotate, and the steering gear drives the driven gear to rotate, thereby realizing the opposite driving of the inner shell and the guide cylinder and improving the rotation stability of the inner shell and the guide cylinder.

[0022] Preferably, a sealing cover plate is provided on the feed port of the inner shell, and the sealing cover plate can seal the feed port. A pressure-resistant hose is connected to the sealing cover plate through a rotating joint so that the cylinder can swing. The pressure-resistant hose is connected to the vacuum generating system and the nitrogen supply system through a first three-way solenoid valve.

[0023] By adopting the above technical solution, the first three-way solenoid valve is used to respectively realize the connection between the vacuum generation system, the nitrogen supply system and the inner cavity of the inner shell, so as to realize the vacuum and nitrogen filling operation of the material environment in the inner shell. While realizing the connection of the first three-way solenoid valve through the pressure-resistant hose, the cylinder can swing.

[0024] Preferably, the mixer includes an oscillating cylinder and two supporting shafts, the two supporting shafts are respectively fixedly arranged on both sides of the oscillating cylinder and rotatably connected to the frame, and a gas channel connected to the inner cavity of the oscillating cylinder is provided on the supporting shaft, and the gas channel is connected to the vacuum generating system and the nitrogen supply system through a second three-way solenoid valve.

[0025] By adopting the above technical solution and utilizing the second three-way solenoid valve, the vacuum generating system and the nitrogen supply system can respectively perform vacuum and nitrogen filling operations on the swing cylinder, and the swinging of the swing cylinder around the supporting shaft can realize the mixing operation of component A and component B in the swing cylinder.

[0026] Preferably, a control valve is provided on the discharge port of the inner shell, and the frame is provided with a collecting cylinder below the discharge port of the inner shell. The collecting cylinder is arranged above the swing cylinder and is connected to the swing cylinder through a feeding hose, so that the material in the collecting cylinder can enter the swing cylinder along the feeding hose.

[0027] By adopting the above technical solution, when component A in the first dryer and component B in the second dryer are dried, the corresponding control valve is opened, and component A and component B enter the swing cylinder along the corresponding collecting cylinder and feeding hose to realize the feeding of component A and component B. The setting of the feeding hose enables the swing cylinder to swing.

[0028] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the medium oil enters the heating chamber from the oil inlet channel, the medium oil flows along the heating channel toward the bottom of the cylinder. When the medium oil passes through the baffle, the medium oil flows upward along the heating channel close to the inner shell side. The medium oil and the inner shell generate heat exchange to heat and dry the material in the inner shell. Then the medium oil returns to the oil bath circulation system through the oil return channel. In this process, the medium oil flows from bottom to top, which can increase the disturbance degree of the medium oil in the vertical direction, thereby effectively avoiding the accumulation of low-temperature and high-density medium oil at the bottom of the cylinder, making the medium oil dry the material more evenly and improving the production efficiency of the oxygen absorber; 2. When the inner shell rotates, the inner shell drives the guide cylinder to rotate in the opposite direction through the transmission assembly. The reverse rotation of the guide cylinder disturbs the boundary layer flow near the original object surface, disrupts the original flow structure, reduces the velocity gradient in the boundary layer, thereby reducing the drag effect and improving the uniformity of heat exchange between the medium oil and the inner shell; 3. When the guide cylinder rotates, the medium oil flows into the wedge-shaped space from the large end of the wedge-shaped space through the oil guide channel. The medium oil will be squeezed during the movement of the medium space, which will generate an upward thrust on the support part, which can offset the pressure of the guide cylinder on the mounting ring plate and reduce the friction between the support part and the mounting ring plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an existing double-cone drying machine.

[0030] Figure 2 It is a structural schematic diagram of a sterilization type oxygen absorbent dry mixing and vacuum packaging integrated system according to an embodiment of the present application.

[0031] Figure 3 It is a structural schematic diagram used to show the swing drive mechanism.

[0032] Figure 4 This is a top view of the dryer.

[0033] Figure 5 is along Figure 4 Section view along line AA.

[0034] Figure 6 yes Figure 5 Enlarged view of part B in the middle.

[0035] Figure 7 It is a top view of the guide cylinder.

[0036] Figure 8 is along Figure 7 Sectional view along the CC line.

[0037] Fig. 9 It is a top view of the mixer.

[0038] Fig.10 is along Fig. 9 Sectional view along line DD.

[0039] Explanation of the reference numerals: 1. Dryer; 11. First dryer; 12. Second dryer; 13. Cylinder; 131. Inner shell; 132. Outer shell; 133. Heating chamber; 134. Feed pipe; 135. Discharge pipe; 136. Oil inlet channel; 137. Oil return channel; 14. Swing drive mechanism; 141. Reciprocating rotary motor; 15. Swing shaft; 161. Blocking cover plate; 162. Pressure hose; 163. First three-way solenoid valve; 2. Mixer; 21. Swing cylinder; 22. Support shaft; 23. Butterfly valve; 24. Gas channel; 25. Second three-way solenoid valve; 3. Vacuum generating system; 31. Vacuum pump; 32. Vacuum pipeline; 4. Oil bath circulation system; 41. Oil pump; 42. Heating oil tank; 43. Oil inlet pipe; 44. Oil return pipe; 5. Nitrogen supply system; 51. High-pressure nitrogen tank; 52, nitrogen pipe; 6, packaging machine; 71, guide; 711, guide cylinder; 72, heating channel; 73, baffle; 74, rotation drive mechanism; 741, drive motor; 75, mounting assembly; 751, mounting ring plate; 752, support; 753, oil guide pipe; 754, through hole; 755, lubrication ring groove; 756, sealing ring strip; 761, inclined guide surface; 762, wedge-shaped space; 763, oil guide channel; 764, oil guide bucket; 77, transmission assembly; 771, driving gear; 772, steering gear; 773, driven gear; 774, gear shaft; 81, control valve; 82, collecting cylinder; 83, feeding hose; 91, inner shell; 92, outer shell; 93, rotating shaft; 94, heating chamber; 95, oil inlet channel; 96, return channel; 10, frame. DETAILED DESCRIPTION

[0040] The following is combined with Figure 2-10 This application is described in further detail.

[0041] The embodiment of the present application discloses an integrated system for dry mixing and vacuum packaging of a sterilized oxygen absorbent.

[0042] Reference Figure 2A sterilization oxygen absorbent dry mixing and vacuum packaging integrated system includes two sets of dryers 1, a mixer 2, a vacuum generating system 3, an oil bath circulation system 4 and a nitrogen supply system 5. The two sets of dryers 1 are divided into a first dryer 11 and a second dryer 12. The first dryer 11 dries component A, and the second dryer 12 dries component B. The mixer 2 can mix components A and B. The vacuum generating system 3 is connected to the first dryer 11, the second dryer 12 and the mixer 2, so that a vacuum environment is generated in the first dryer 11, the second dryer 12 and the mixer 2. The purpose of providing a vacuum environment is to prevent components A and B from contacting with oxygen and generating oxidation. The oil bath circulation system 4 is connected to the first dryer 11 and the second dryer 12 to generate a drying environment in the first dryer 11 and the second dryer 12. The medium oil in this embodiment is silicone oil. The nitrogen supply system 5 is connected to the first dryer 11, the second dryer 12, and the mixer 2, and nitrogen is introduced into the first dryer 11, the second dryer 12, and the mixer 2. The purpose of introducing nitrogen is to relieve the vacuum environment in the cylinder 13 and prevent oxygen from entering the cylinder. The components A and B from the first dryer 11 and the second dryer 12 enter the mixer 2 for mixing. A packaging machine 6 is provided at the outlet end of the mixer 2. The materials mixed by the mixer 2 fall into the packaging belt in the packaging machine 6, and then the packaging belt is vacuumed, and then the opening of the packaging belt is hot-melt packaged using a hot melt plate.

[0043] Reference Figure 2 The vacuum generating system 3 in this embodiment includes a vacuum pump 31, which is connected to the first dryer 11, the second dryer 12, and the mixer 2 through a vacuum pipe 32. The nitrogen supply system 5 includes a high-pressure nitrogen tank 51 and a nitrogen pipe 52. The high-pressure nitrogen in the high-pressure nitrogen tank 51 is passed into the first dryer 11, the second dryer 12, and the mixer 2 through the nitrogen pipe 52. The oil bath circulation system 4 includes an oil pump 41, a heating oil tank 42, an oil inlet pipe 43, and an oil return pipe 44. The heating oil tank 42 is filled with medium oil and heats the medium oil. The oil pump 41 transports the medium oil in the heating oil tank 42 to the first dryer 11 and the second dryer 12 through the oil inlet pipe 43. The medium oil after heat exchange between the second dryer 12 and the second dryer 12 flows back to the heating oil tank 42 through the oil return pipe 44, thereby completing the circulation of the medium oil.

[0044] When the oxygen absorber is mixed and dried, component A and component B are respectively introduced into the first dryer 11 and the second dryer 12, and the vacuum generating system 3 evacuates the cylinder 13 of the first dryer 11 and the second dryer 12, and then the oil bath circulation system 4 passes the medium oil through the heating chamber 133 to heat the materials in the first dryer 11 and the second dryer 12, and then the first dryer 11 heats and dries component A, and the second dryer 12 heats and dries component B. After the drying of component A and component B is completed, nitrogen is introduced into the cylinder 13 through the nitrogen supply system 5 to release the vacuum state, and then the dried component A and component B are introduced into the mixer 2 for mixing, and the mixing process is still in a vacuum state. After mixing, the nitrogen supply system 5 introduces nitrogen into the mixer 2, and the mixed materials in the mixer 2 fall into the packaging belt in the packaging machine 6, and then the packaging belt is evacuated, and then the opening of the packaging belt is hot-melt packaged using a hot melt plate to complete the mixing, drying and vacuum packaging of the oxygen absorber.

[0045] Reference Figure 2 , Figure 3 and Figure 4 Each dryer 1 comprises a cylinder 13, a swing driving mechanism 14 and two swing shafts 15, and the cylinder 13 is a double-conical cylinder.

[0046] Reference Figure 4 , Figure 5 The barrel 13 in this embodiment includes an inner shell 131 and an outer shell 132. The inner shell 131 and the outer shell 132 are arranged in parallel and spaced apart, and a heating chamber 133 is formed between the inner shell 131 and the outer shell 132. A feed pipe 134 is formed at the top of the inner shell 131, and a discharge pipe 135 is formed at the bottom.

[0047] Reference Figure 5 , Figure 6 The two swing shafts 15 are relatively fixedly connected to the two sides of the housing 132 along the horizontal direction, and are rotatably connected to the frame 10. Each swing shaft 15 is provided with an oil inlet channel 136 and an oil return channel 137 connected to the heating chamber 133. The oil return channel 137 is located inside the oil inlet channel 136. Each oil inlet channel 136 is connected to the oil inlet pipe 43 through a rotary joint, and each oil return channel 137 is connected to the oil return pipe 44 through a hose. The swing drive mechanism 14 includes a reciprocating rotary motor 141 arranged on the frame 10. The first dryer 11 and the second dryer 12 each correspond to a reciprocating rotary motor 141. The reciprocating rotary motor 141 drives the swing shaft 15 to swing through a gear assembly.

[0048] Reference Figure 5 , Figure 6The outer shell 132 is provided with a guide member 71 in the heating chamber 133, and a heating channel 72 for the flow of medium oil is formed between the guide member 71 and the inner shell 131 and the outer shell 132. The heating channel 72 forms a deflection joint 73 at the bottom of the inner shell 131, and the medium oil flowing into the oil inlet channel 136 can flow into the return oil channel 137 along the heating channel 72 and the deflection joint 73.

[0049] When the medium oil enters the heating chamber 133 from the oil inlet channel 136, the medium oil flows along the heating channel 72 toward the bottom of the cylinder 13. When the medium oil passes through the deflector 73, the medium oil flows upward along the heating channel 72 close to the inner shell 131. The medium oil and the inner shell 131 generate heat exchange to heat and dry the material in the inner shell 131. Then the medium oil returns to the oil bath circulation system 4 through the oil return channel 137. During this process, the medium oil flows from bottom to top, which can increase the degree of disturbance of the medium oil in the vertical direction, thereby effectively avoiding the accumulation of low-temperature and high-density medium oil at the bottom of the cylinder 13, so that the medium oil dries the material more evenly, thereby improving the production efficiency of the oxygen absorber.

[0050] Reference Figure 5 The inner shell 131 is rotatably connected to the outer shell 132. The two ends of the outer shell 132 are bent toward their respective center positions to form folded edges. The folded edges are slidably and sealedly connected with the corresponding feed pipe 134 and discharge pipe 135, so that the heating chamber 133 forms a sealed space. Both ends of the outer shell 132 are connected to the inner cylinder through tapered roller bearings to realize the support of the outer shell 132 to the inner shell 131 in the vertical direction. The outer shell 132 is provided with a rotation drive mechanism 74 that can drive the inner shell 131 to rotate. The rotation drive mechanism 74 in this embodiment includes a drive motor 741. The output shaft of the drive motor 741 is vertically upward. The output shaft of the drive motor 741 is connected to the feed pipe 134 through a mutually meshing gear set to drive the inner shell 131 to rotate. Using the drive mechanism to drive the inner shell 131 to rotate can increase the stirring of the material in the inner shell 131 and the uniformity of the heat exchange between the inner shell 131 and the medium oil, thereby accelerating the drying rate and uniformity of the A component and the B component.

[0051] Reference Figure 3A blocking cover plate 161 is provided on the feed port of each feed pipe 134, and the blocking cover plate 161 is threadedly connected to the feed pipe 134, and the blocking cover plate 161 blocks the feed port. A pressure-resistant hose 162 is connected to the blocking cover plate 161, and the material of the pressure-resistant hose 162 includes but is not limited to one of polyurethane, nylon, and polytetrafluoroethylene. One end of the pressure-resistant hose 162 is connected to the blocking cover plate 161 through a rotating joint, and the other end is connected to a first three-way solenoid valve 163. The first three-way solenoid valve 163 is connected to the vacuum pipe 32 and the nitrogen pipe 52. The staggered opening of the vacuum pipe 32, the nitrogen pipe 52 and the pressure-resistant hose 162 is controlled by the first three-way solenoid valve 163, and the cavity in the inner shell 131 is evacuated and filled with nitrogen. The pressure-resistant hose 162 is partially bent to adapt to the swing of the cylinder 13. The first three-way solenoid valve 163 is used to respectively connect the vacuum generating system 3, the nitrogen supply system 5 and the inner cavity of the inner shell 131, thereby realizing the vacuum and nitrogen filling operations of the material environment in the inner shell 131. While the first three-way solenoid valve 163 is connected through the pressure-resistant hose 162, the cylinder 13 can swing.

[0052] Reference Figure 5 , Figure 6 The guide member 71 in this embodiment includes a guide cylinder 711, which is arranged parallel to the inner shell 131 and the outer shell 132. The guide cylinder 711, the inner shell 131 and the outer shell 132 are all rotatably arranged. The guide cylinder 711 and the outer shell 132 are connected to the outer shell 132 through the mounting assembly 75, and the inner shell 131 is connected to the guide cylinder 711 through the transmission assembly 77, driving the guide cylinder 711 to rotate in the opposite direction.

[0053] Reference Figure 5 , Figure 6 The mounting assembly 75 in this embodiment includes a mounting ring plate 751, which is fixedly arranged on the inner side wall of the housing 132 and located above the oil inlet passage 136. A support portion 752 that can overlap the mounting ring plate 751 is formed on the guide cylinder 711. The support portion 752 and the mounting ring plate 751 are slidably fitted and a certain gap is formed between the housing 132. The support portion 752 overlaps the mounting ring plate 751 to support the guide cylinder 711 in the heating chamber 133, thereby improving the stability of the guide cylinder 711 when it rotates.

[0054] Reference Figure 5 , Figure 6The swing shaft 15 is fixedly connected with an oil guide pipe 753 connected with the oil return channel 137. The oil guide pipe 753 passes through the connecting arrangement of the mounting ring plate 751 and the end of the heating channel 72. The guide cylinder 711 is provided with a plurality of through holes 754 above the support portion 752, so that the medium oil can flow back to the oil return channel 137 along the oil guide pipe 753. The medium oil flows along the heating channel 72 to the top of the mounting ring plate 751, separating the oil inlet and the oil return of the medium oil, so that the medium oil forms a single flow path during the flow process, effectively avoiding the phenomenon of the temperature of the medium oil inlet being reduced due to the mutual leakage of the medium oil in the oil inlet and the medium oil in the oil return, reducing the heat loss of the medium oil, and improving the heat exchange efficiency between the medium oil and the inner shell 131.

[0055] Reference Figure 5 , Figure 6 A lubrication ring groove 755 is provided on the mounting ring plate 751 , and a sealing ring strip 756 which can be matched with the lubrication ring groove 755 is provided on the support portion 752 . The sealing ring strip 756 and the support portion 752 are integrally formed.

[0056] Reference Figure 7 , Figure 8 The sealing ring strip 756 is provided with a plurality of inclined guide surfaces 761 on one side facing the bottom wall of the lubricating ring groove 755. A wedge-shaped space 762 is formed between each inclined guide surface 761 and the bottom wall of the lubricating ring groove 755. The plurality of wedge-shaped spaces 762 are evenly arranged along the circumference of the sealing ring strip 756. The large end of each wedge-shaped space 762 faces the rotation direction of the support portion 752. The support portion 752 is provided with an oil guide channel 763 connected to the large end of the wedge-shaped space 762. The oil guide channel 763 corresponds to the wedge-shaped space 762 one by one. Each oil guide channel 763 penetrates to the top wall of the support portion 752, and an oil guide hopper 764 is protruded on the top wall of the support portion 752. The oil guide hopper 764 corresponds to the guide channel one by one. Each oil guide hopper 764 is a rectangular box structure. The adjacent two sides of the oil guide hopper 764 are opened to form an inlet facing the flowing medium oil and an outlet connected to the oil guide channel 763. When the guide cylinder 711 rotates, the medium oil flows into the wedge-shaped space 762 along the oil guide hopper 764 and flows out from the gap between the sealing ring strip 756 and the lubricating ring groove 755. The medium oil enters from the inlet of the oil guide hopper 764 and enters the oil guide channel 763 along the outlet of the oil guide hopper 764, so that the medium oil flows into the wedge-shaped space 762.

[0057] The sealing performance between the mounting ring plate 751 and the support portion 752 can be increased by the cooperation between the sealing ring strip 756 and the lubricating ring groove 755. When the guide cylinder 711 rotates, the medium oil flows into the wedge-shaped space 762 from the large end of the wedge-shaped space 762 through the oil guide channel 763. The medium oil is squeezed during the movement of the wedge-shaped space 762, which generates an upward thrust on the support portion 752, thereby offsetting the pressure of the guide cylinder 711 on the mounting ring plate 751 and reducing the friction between the support portion 752 and the mounting ring plate 751.

[0058] Reference Figure 5 , Figure 6 The transmission assembly 77 in this embodiment includes a driving gear 771, a steering gear 772 and a driven gear 773. The driving gear 771 is coaxially fixedly arranged on the outer wall of the inner shell 131, and the driven gear 773 is coaxially fixedly arranged on the inner wall of the guide cylinder 711. The steering gear 772 is connected to the outer shell 132 through a gear shaft 774. The gear shaft 774 is fixedly connected to the outer shell 132. The steering gear 772 is rotatably connected to the gear shaft 774. The steering gear 772 is located between the driving gear 771 and the driven gear 773 and meshes with the driving gear 771 and the driven gear 773. When the inner shell 131 drives the driving gear 771 to rotate, the driving gear 771 drives the steering gear 772 to rotate, and the steering gear 772 drives the driven gear 773 to rotate, so that the inner shell 131 and the guide cylinder 711 are driven in opposite directions, and the rotation stability of the inner shell 131 and the guide cylinder 711 is improved.

[0059] Reference Figure 2 A control valve 81 is provided on the discharge port of the discharge pipe 135 at the bottom of each inner shell 131. The control valve 81 includes but is not limited to a butterfly valve 23, a ball valve, a gate valve, or an orifice valve. The frame 10 is provided with a collecting cylinder 82 below the discharge port of the discharge pipe 135 of each inner shell 131, and the collecting cylinder 82 is arranged above the swing cylinder 21. When the cylinder 13 stops swinging, the discharge pipe 135 is aligned with the collecting cylinder 82. A feeding hose 83 is installed at the bottom of each collecting cylinder 82. The material of the feeding hose 83 includes but is not limited to one of polyurethane, nylon, and polytetrafluoroethylene. The feeding hose 83 is partially bent and folded to adapt to the swinging movement of the mixer 2.

[0060] Reference Fig. 9 , Fig.10The mixer 2 in this embodiment includes an oscillating cylinder 21 and two supporting shafts 22. The oscillating cylinder 21 is a double-conical structure. The two supporting shafts 22 are relatively fixedly arranged on both sides of the oscillating cylinder 21 and are rotatably connected to the frame 10. The supporting shafts 22 are driven by an external motor to swing. The top feed port of the oscillating cylinder 21 is blocked by a sealing plate. The ends of the two feeding hoses 83 are fixed to the sealing plate and connected to the inner cavity of the oscillating cylinder 21, so that the A component and the B component materials can fall into the oscillating cylinder 21 along the feeding hoses 83. Each feeding hose 83 is provided with a ball valve at one end close to the oscillating cylinder 21, and the on and off of the feeding hose 83 is controlled by the ball valve.

[0061] Reference Figure 2 , Fig. 9 and Fig.10 A butterfly valve 23 is provided at the bottom discharge port of the swing cylinder 21 to control the discharge of the material in the swing cylinder 21. A gas channel 24 is provided on the support shaft 22 and is connected to the inner cavity of the swing cylinder 21. The gas channel 24 is connected to the vacuum generation system 3 and the nitrogen supply system 5 through a second three-way solenoid valve 25. The second three-way solenoid valve 25 is connected to the gas channel 24 through a rotary joint. The second three-way solenoid valve 25 is used to realize the vacuum generation system 3 and the nitrogen supply system 5 to perform vacuum and nitrogen filling operations on the swing cylinder 21 respectively, and the swing of the swing cylinder 21 around the support shaft 22 is used to realize the mixing operation of component A and component B in the swing cylinder 21.

[0062] When component A in the first dryer 11 and component B in the second dryer 12 are dried, the corresponding control valve 81 is opened, and component A and component B enter the swing cylinder 21 along the corresponding collecting cylinder 82 and feeding hose 83 to realize the feeding of component A and component B. The setting of the feeding hose 83 enables the swing cylinder 21 to swing.

[0063] The implementation principle of the integrated system for drying, mixing and vacuum packaging of a sterilized oxygen absorbent according to the embodiment of the present application is as follows: when mixing, drying and packaging the oxygen absorbent, component A and component B are respectively introduced into the inner shell 131 of the first dryer 11 and the inner shell 131 of the second dryer 12, and the vacuum generating system 3 evacuates the inner cavities of the first dryer 11 and the second dryer 12, and then the oil bath circulation system 4 introduces the medium oil into the heating chamber 133, and then the reciprocating rotating motor 141 drives the cylinder 13 to swing, and the driving motor 741 drives the inner shell 131 to rotate, so as to heat the materials in the first dryer 11 and the second dryer 12, and then the first dryer 11 and the second dryer 12 are heated. The machine 11 heats and dries component A, and the second dryer 12 heats and dries component B. After component A and component B are dried, nitrogen is introduced into the cylinder 13 through the nitrogen supply system 5 to release the vacuum state, and then the dried component A and component B are introduced into the swing cylinder 21 through the collecting cylinder 82 and the feeding hose 83 for mixing. The mixing process is still in a vacuum state. After mixing, the nitrogen supply system 5 introduces nitrogen into the mixer 2, and the materials mixed by the mixer 2 fall into the packaging belt in the packaging machine 6, and then the packaging belt is vacuumed, and then the opening of the packaging belt is hot-melt packaged using a hot melt plate to complete the mixing, drying and vacuum packaging of the oxygen absorber.

[0064] When the medium oil enters the heating chamber 133 from the oil inlet channel 136, the medium oil flows along the heating channel 72 toward the bottom of the cylinder 13. When the medium oil passes through the deflector 73, the medium oil flows upward along the heating channel 72 close to the inner shell 131. The medium oil and the inner shell 131 generate heat exchange to heat and dry the material in the inner shell 131. Then the medium oil returns to the oil bath circulation system 4 through the oil return channel 137. During this process, the medium oil flows from bottom to top, which can increase the degree of disturbance of the medium oil in the vertical direction, thereby effectively avoiding the accumulation of low-temperature and high-density medium oil at the bottom of the cylinder 13, so that the medium oil dries the material more evenly, thereby improving the production efficiency of the oxygen absorber.

[0065] 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 sterilizing oxygen absorbent dry mixing and vacuum packaging integrated system, characterized in that: The invention comprises two groups of dryers (1), a mixer (2), a vacuum generating system (3), an oil bath circulation system (4) and a nitrogen supply system (5), wherein the two groups of dryers (1) are divided into a first dryer (11) and a second dryer (12), wherein the first dryer (11) can dry component A, and the second dryer (12) can dry component B, and the mixer (2) can mix components A and B, and the vacuum generating system (3) is connected to the first dryer (11), the second dryer (12) and the mixer (2) so as to enable the first dryer (11), the second dryer (12) and the mixer (2) to be operated. A vacuum environment is generated in the mixer (2); the oil bath circulation system (4) is connected to the first dryer (11) and the second dryer (12) so as to generate a drying environment in the first dryer (11) and the second dryer (12); the nitrogen supply system (5) is connected to the first dryer (11), the second dryer (12) and the mixer (2) so as to introduce nitrogen into the first dryer (11), the second dryer (12) and the mixer (2); a packaging machine (6) is provided at the bottom of the mixer (2); the packaging machine (6) is capable of vacuum packaging the output of the mixer (2); The drying machine (1) comprises a cylinder (13), a swing drive mechanism (14) and two swing shafts (15); the two swing shafts (15) are relatively fixedly connected to the two sides of the cylinder (13) along the horizontal direction and are rotatably connected to the frame (10) so that the cylinder (13) can rotate around the swing shafts (15); the swing drive mechanism (14) is connected to the swing shafts (15) so as to drive the cylinder (13) to swing back and forth; The cylinder (13) comprises an inner shell (131) and an outer shell (132), a heating chamber (133) is formed between the inner shell (131) and the outer shell (132), a chamber for holding materials is formed in the inner shell (131), the two swing shafts (15) are fixedly connected to the outer shell (132), an oil inlet channel (136) and an oil return channel (137) which are connected to the oil bath circulation system (4) are provided on the swing shaft (15), and the outer shell (131) is provided with a heating chamber (133) between the inner shell (131) and the outer shell (132). 32) A guide member (71) is provided in the heating chamber (133), and a heating channel (72) for medium oil to flow is formed between the guide member (71) and the inner shell (131) and the outer shell (132). The heating channel (72) forms a deflection joint (73) at the bottom of the inner shell (131), and the medium oil flowing out of the oil inlet channel (136) can flow into the oil return channel (137) along the heating channel (72) and the deflection joint (73).

2. The integrated system for dry mixing and vacuum packaging of sterilized oxygen absorbent according to claim 1, characterized in that: The inner shell (131) is rotatably connected to the outer shell (132), and the outer shell (132) is provided with a rotation driving mechanism (74) capable of driving the inner shell (131) to rotate; The guide member (71) comprises a guide cylinder (711), the guide cylinder (711) being arranged in parallel with the inner shell (131) and the outer shell (132), the guide cylinder (711) and the inner shell (131) and the outer shell (132) being arranged to rotate, the guide cylinder (711) and the outer shell (132) being connected with each other via a mounting assembly (75), and the inner shell (131) being connected with the guide cylinder (711) via a transmission assembly (77) so as to be able to drive the guide cylinder (711) to rotate in the opposite direction.

3. The integrated system for dry mixing and vacuum packaging of sterilized oxygen absorbent according to claim 2, characterized in that: The mounting assembly (75) comprises a mounting ring plate (751), the mounting ring plate (751) being fixedly arranged on the inner side wall of the housing (132), the guide cylinder (711) being formed with a support portion (752) capable of overlapping the mounting ring plate (751), the support portion (752) being slidably fitted with the mounting ring plate (751) so as to enable the medium oil to form a one-way flow in the heating channel (72).

4. The integrated system for dry mixing and vacuum packaging of sterilized oxygen absorbent according to claim 3, characterized in that: An oil guide pipe (753) connected to the oil return channel (137) is provided on the swing shaft (15); the oil guide pipe (753) passes through the connecting arrangement of the mounting ring plate (751) and the end of the heating channel (72), so that the medium oil can flow back to the oil return channel (137) along the oil guide pipe (753).

5. The integrated system for dry mixing and vacuum packaging of sterilized oxygen absorbent according to claim 3, characterized in that: The mounting ring plate (751) is provided with a lubrication ring groove (755), the support portion (752) is provided with a sealing ring strip (756) which can be arranged in cooperation with the lubrication ring groove (755), the sealing ring strip (756) is provided with a plurality of inclined guide surfaces (761) on a side facing the bottom wall of the lubrication ring groove (755), a wedge-shaped space (762) is formed between each of the inclined guide surfaces (761) and the bottom wall of the lubrication ring groove (755), the large end of each of the wedge-shaped spaces (762) faces the rotation direction of the support portion (752), the support portion (752) is provided with an oil guide channel (763) which is in communication with the large end of the wedge-shaped space (762), the oil guide channel (763) penetrates to the top wall of the support portion (752) so that medium oil can flow into the wedge-shaped space (762).

6. The integrated system for dry mixing and vacuum packaging of sterilized oxygen absorbent according to claim 5, characterized in that: An oil guide hopper (764) is protruding outwardly from the support portion (752), the inlet of the oil guide hopper (764) faces the medium oil, and the outlet of the oil guide hopper (764) is in communication with the oil guide channel (763).

7. The integrated system for dry mixing and vacuum packaging of sterilized oxygen absorbent according to claim 2, characterized in that: The transmission assembly (77) comprises a driving gear (771), a steering gear (772) and a driven gear (773); the driving gear (771) is coaxially fixedly arranged on the outer side wall of the inner shell (131); the driven gear (773) is coaxially fixedly arranged on the inner side wall of the guide cylinder (711); the steering gear (772) is rotatably arranged on the outer shell (132) and is located between the driving gear (771) and the driven gear (773), and is meshed with the driving gear (771) and the driven gear (773).

8. The integrated system for dry mixing and vacuum packaging of sterilized oxygen absorbent according to claim 2, characterized in that: A blocking cover plate (161) is provided on the feed port of the inner shell (131), and the blocking cover plate (161) is capable of blocking the feed port. A pressure-resistant hose (162) is connected to the blocking cover plate (161) via a rotating joint so that the cylinder (13) can swing. The pressure-resistant hose (162) is connected to the vacuum generating system (3) and the nitrogen supply system (5) via a first three-way solenoid valve (163).

9. The integrated system for dry mixing and vacuum packaging of sterilized oxygen absorbent according to claim 2, characterized in that: The mixer (2) comprises an oscillating cylinder (21) and two supporting shafts (22). The two supporting shafts (22) are respectively fixedly arranged on both sides of the oscillating cylinder (21) and are rotatably connected to the frame (10). The supporting shaft (22) is provided with a gas channel (24) which is in communication with the inner cavity of the oscillating cylinder (21). The gas channel (24) is connected to the vacuum generating system (3) and the nitrogen supply system (5) via a second three-way solenoid valve (25).

10. The integrated system for dry mixing and vacuum packaging of sterilized oxygen absorbent according to claim 9, characterized in that: A control valve (81) is provided on the discharge port of the inner shell (131), and a collecting cylinder (82) is provided on the frame (10) below the discharge port of the inner shell (131). The collecting cylinder (82) is arranged above the swing cylinder (21) and is connected to the swing cylinder (21) through a feeding hose (83), so that the material in the collecting cylinder (82) can enter the swing cylinder (21) along the feeding hose (83).

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