A testing and purification device for thawing wastewater from cold chain food products.

Abstract

This invention discloses a testing and purification device for thawing wastewater from cold chain food processing, belonging to the field of wastewater treatment technology. Its structure includes a thawing chamber and a wastewater purification tank. The thawing chamber is equipped with positioning components and temperature control components for holding cold chain food samples. The wastewater purification tank is located at the bottom of the thawing chamber, and a bottom seal is located on the upper side of the bottom of the thawing chamber. Frame-shaped clamps are symmetrically slidably installed on both sides of the bottom seal. Heat-sealing components are embedded in the edges of the frame-shaped clamps. A suction pipe is connected to the upper side of the wastewater purification tank, which can be inserted into the packaging bag of the cold chain food sample to guide the thawing liquid inside the bag in a closed manner. The device of this application adopts a fully enclosed wastewater treatment process, ensuring both wastewater testing and purification effects while effectively isolating wastewater samples from the external environment, avoiding contamination of the equipment's interior, and preventing cross-contamination and odor escape during the testing process.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a testing and purification device for thawing wastewater from cold chain food products. Background Technology

[0002] Analyzing whether the thawing liquid of cold chain food contains microbial contamination can promptly block the risk of pathogens spreading through the food processing chain. Furthermore, by treating the thawing liquid through membrane filtration, anaerobic digestion, or biological methods, secondary pollution and public health hazards caused by eutrophication, pathogen spread, or chemical residues can be avoided.

[0003] An existing patent application (CN202510113425.1) discloses an integrated laboratory high-concentration wastewater treatment machine. This patent document describes a method that uses multiple containers to hold different types of wastewater, and then uses spectral analysis and sequential emptying to neutralize the different types of wastewater and prevent reactions between them during subsequent treatment. Specifically, the wastewater is collected from various laboratory containers by a feeding structure and stored in different wastewater cups. Then, a conveyor roller drives each wastewater cup sequentially through a Raman spectroscopy device to determine the main components of the wastewater in each cup. Next, the wastewater is sorted using the conveyor roller and a propulsion structure. Wastewater cups that do not produce violent reactions are first arranged on a large slide, while usable wastewater cups are placed on smaller slides. Then, each large slide is activated sequentially, with intervals between different large slides. Wastewater from the upper wastewater cups is poured into the coarse filtration chamber in batches for pretreatment. Then, the waste liquid in the coarse filtration chamber is input into the reaction chamber. At this time, one or more small slides are activated as needed to evenly add the beneficial wastewater from the wastewater cups on the small slides into the reaction chamber through the dosing funnel and participate in the chemical treatment steps. Finally, the liquid in the reaction chamber is introduced into the fine filtration system for thorough filtration before being discharged. This avoids the mixing and treatment of multiple wastewaters that may react, and prevents some violent and harmful chemical reactions from occurring during the wastewater treatment process. At the same time, it also allows some special wastewater that can participate in the chemical treatment of other wastewaters to be reused, achieving a positive effect, reducing the waste of certain wastewater components, effectively improving the utilization rate of wastewater, reducing resource consumption, alleviating the environmental burden in the wastewater treatment process, and reducing the cost of wastewater treatment.

[0004] However, when using the technical solutions in the aforementioned patent documents, the wastewater storage system has an open exposure risk. Since the wastewater cup is continuously in a non-sealed state, volatile components can easily migrate through the gas phase and contaminate adjacent detection units, thus causing cross-contamination. In addition, the pollutants that gradually accumulate in the equipment cavity will disrupt the concentration gradient balance, making it easy for low-concentration wastewater samples to produce false positives. Therefore, this application provides a detection and purification device for thawing wastewater from cold chain food. Summary of the Invention

[0005] To address the shortcomings of the existing technology, the present invention aims to provide a cold chain food thawing wastewater testing and purification device. This device adopts a fully enclosed wastewater treatment process, which effectively isolates wastewater samples from the external environment while ensuring the effectiveness of wastewater testing and purification, thus avoiding pollution inside the device and preventing cross-contamination of samples and odor emission during the testing process.

[0006] The technical solution adopted by this invention to solve its technical problem is as follows:

[0007] A cold chain food thawing wastewater testing and purification device is provided, including a thawing chamber and a wastewater purification tank. The thawing chamber is used to hold cold chain food samples and is equipped with positioning components and temperature control components for clamping the cold chain food samples. The wastewater purification tank is located at the bottom of the thawing chamber, and a bottom seal is provided on the upper side of the bottom of the thawing chamber. During the thawing process of the cold chain food samples, the liquid generated inside the cold chain food samples thaws and gathers at the bottom of the packaging bag, forming a downward bulging area at the bottom of the packaging bag. Frame-shaped clamps are symmetrically slidably installed on both sides of the bottom seal. As the two frame-shaped clamps move synchronously towards each other and press together, they separate the inside of the cold chain food sample packaging bag into a sample storage area and a thawing liquid storage area. Heat-sealing components are embedded in the edges of the frame-shaped clamps. A suction pipe is connected to the upper side of the wastewater purification tank. The suction pipe can be inserted into the packaging bag of the cold chain food samples to guide the thawing liquid inside the packaging bag in a closed manner.

[0008] Furthermore, a waste liquid collection tank is detachably and fixedly installed on the side of the wastewater purification tank, and multiple collars are rotatably installed on the side of the waste liquid collection tank. An arc-shaped baffle is fixedly installed on the inner side of the wastewater purification tank, and the outer side of the arc-shaped baffle abuts against the inner side of the collar. A side storage tube is detachably and fixedly connected to the outer side of the collar, and microbial detection reagents, decomposing bacteria and ozone are placed in the multiple side storage tubes respectively.

[0009] Furthermore, the heat-sealing component employs three sets of parallel and zigzag-arranged heating wires. The heating wires located at the edges are used to heat-seal the packaging bag, while the heating wires located in the middle are used to melt the edges of the packaging bag corresponding to the thawing liquid storage area.

[0010] Furthermore, the thawing chamber includes a tank and a cover. The tank is fixedly installed on the base. The waste liquid collection tank is detachably connected to the column at the bottom of the tank via a cross arm. The guide column at the bottom of the cover is slidably connected to the base. A linear electric cylinder II for driving the guide column to slide is installed on the base. The positioning components include a pressing frame and a support column that can press against the top and bottom edges of the cold chain food sample. The pressing frame and the support column are respectively connected to the cover and the tank.

[0011] Furthermore, the frame-shaped clamp is slidably mounted on the bottom sealing seat, and a disc seat is rotatably mounted on the bottom of the slot box. The bottom sealing seat is connected to the disc seat, and a handle is provided at the bottom of the disc seat. A linear electric cylinder I is detachably mounted on the disc seat. A bidirectional slot arm is connected to the movable end of the linear electric cylinder I. Pins are slidably mounted on both sides of the bidirectional slot arm. The pins are detachably mounted on the side of the frame-shaped clamp by means of threaded engagement.

[0012] Furthermore, two vertical brackets are fixedly installed on the lower top side of the cover, and connecting rods are rotatably connected to both sides of the vertical brackets. A torsion spring is fixedly installed between the vertical brackets and the connecting rods. A pressing frame is rotatably connected between two connecting rods located on the same side, and multiple pressure rollers are rotatably installed on the pressing frame.

[0013] Furthermore, the support column is fixedly installed at the upper corner of the bottom of the tank, and a U-shaped seat is fixedly installed on the tank. A spherical support head and a spherical kneading head are respectively installed on multiple U-shaped seats. A water inlet pipe and a drain pipe are respectively connected to the spherical support head and the spherical kneading head on one side. The spherical support head and the spherical kneading head are connected one by one through a flexible hose I.

[0014] Furthermore, the spherical kneading head is rotatably mounted on the corresponding U-shaped seat. The U-shaped seats corresponding to the multiple spherical kneading heads are distributed at equal angular intervals around the rotation center of the disc seat. The side of the spherical kneading head is provided with a toothed structure and an extension arm. The pin at the end of the extension arm is engaged and slidably connected with the drive groove arm. The drive groove arm is vertically slidably connected with the groove box.

[0015] Furthermore, the suction pipe has a built-in filter screen to intercept debris and residue, preventing debris and residue from entering the wastewater purification tank and increasing the difficulty of subsequent wastewater treatment.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] 1. The cold chain food thawing wastewater testing and purification equipment of this invention uses a temperature control component to thaw cold chain food samples. As the thawing process progresses, the liquid generated inside the cold chain food sample accumulates at the bottom of the packaging bag. Under the action of gravity, the thawing liquid forms a downward bulging area at the bottom of the packaging bag. The two frame-shaped clamps are controlled to move synchronously towards each other, further increasing the bulge at the bottom of the packaging bag. They continue to move towards each other until they are pressed together, separating the inside of the cold chain food sample packaging bag into a sample storage area and a thawing liquid storage area. The thawing liquid flows out from the sample and accumulates at the bottom of the packaging. Because the sample storage area and the thawing liquid storage area are separated by the two frame-shaped clamps, the thawing liquid is not easy to flow back into the sample storage area and will not adversely affect the quality of the sample.

[0018] 2. The cold chain food thawing wastewater testing and purification equipment of this invention involves installing a suction pipe on the top of the wastewater purification tank and connecting the horizontal arm on the side of the waste liquid collection tank to the column at the bottom of the tank. The horizontal arm is manually controlled to rise vertically on the column, causing the wastewater purification tank, waste liquid collection tank and suction pipe to move upward synchronously, so that the suction pipe passes through the bottom of the thawing chamber and is then connected to the sealing ring on the bottom seal seat. Finally, it is inserted into the packaging bag of the cold chain food sample, sealing and exporting the thawing liquid in the storage area, eliminating the risk of exposure and avoiding cross-contamination.

[0019] 3. The cold chain food thawing wastewater testing and purification equipment of this invention allows for manual control of the collar to rotate counterclockwise around its own axis, allowing the thawing liquid to enter the side storage tube on the side of the collar. The microbial detection reagent in the side storage tube is then used to detect whether the thawing liquid contains pathogens. The edge of the collar is always in contact with the waste liquid collection tank, forming a closed container. The wastewater purification area occupies a smaller proportion of the overall space for the cold chain food sample, thereby optimizing equipment costs while reducing equipment maintenance pressure.

[0020] 4. The cold chain food thawing wastewater detection and purification equipment of this invention involves manually controlling the collar to rotate clockwise around its own axis, releasing ozone and decomposing bacteria originally stored in the side storage tube of the designated collar into the wastewater purification tank and the waste liquid collection tank in sequence. Utilizing the high solubility and strong reactivity of ozone at low temperatures, it penetrates the cell membrane of microorganisms, destroys enzyme systems and DNA, decomposes large organic molecules such as oils, proteins, and polysaccharides in the wastewater, and kills pathogens in the wastewater. The decomposing bacteria include Pseudomonas and Bacillus, used to decompose small organic molecules such as fatty acids and short-chain carbohydrates after ozone pretreatment. Through biological metabolism, the organic matter is ultimately converted into carbon dioxide and water, avoiding disinfection byproducts that may be generated by traditional chemical methods.

[0021] 5. The cold chain food thawing wastewater testing and purification equipment of this invention uses three sets of parallel and zigzag-arranged heating wires to heat-seal the edges of the sample storage area and the thawing liquid storage area, and to melt and break the connection between the sample storage area and the thawing liquid storage area, completely separating the sample storage area and the thawing liquid storage area and sealing the separation point. The thawing liquid is completely sealed between the bottom seal, the frame clamp, the wastewater purification tank, the waste liquid collection tank and the suction pipe, preventing the thawing liquid from being open in the tank and the enclosure and causing internal equipment contamination, and preventing the thawing liquid from flowing around in the bottom seal and the two frame clamps. It effectively isolates the wastewater sample from the external environment, avoids internal equipment contamination, and eliminates the problems of sample cross-contamination and odor escape in the testing process.

[0022] 6. The cold chain food thawing wastewater testing and purification equipment of this invention ensures that the thawing liquid in each operation stage is not exposed to the air or the thawing chamber, thus achieving a fully enclosed wastewater treatment process. In addition, during the process of exporting the thawing liquid, the cold chain food samples remaining in the sample storage area will not be contaminated by air and impurities, so that the food can be reused. The food may experience a decrease in taste due to thawing and refreezing, but it can be used for lower-standard purposes such as pet food instead of human consumption, without causing resource waste, avoiding economic losses and the cumbersome process of subsequent waste disposal. Attached Figure Description

[0023] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 A schematic diagram of the overall structure of the cold chain food thawing wastewater detection and purification equipment provided by the present invention;

[0025] Figure 2 For the present invention Figure 1 Enlarged view of point A in the middle;

[0026] Figure 3 An exploded view of the overall structure of the cold chain food thawing wastewater testing and purification equipment provided by the present invention;

[0027] Figure 4 This is a schematic diagram of the structure of the vertical frame, connecting rod, and pressing frame provided by the present invention;

[0028] Figure 5 This is a schematic diagram of the structure of the trough, support column, and spherical support head provided by the present invention;

[0029] Figure 6 For the present invention Figure 5 Enlarged view of point B in the middle;

[0030] Figure 7 This is a schematic diagram of the structure of the disc base, bottom sealing base, and frame-shaped clamp provided by the present invention;

[0031] Figure 8 An exploded view of the structure of the disc base, bottom sealing base, and frame-shaped clamp provided by the present invention;

[0032] Figure 9 This is a cross-sectional view of the tank, bottom seal, and suction pipe provided by the present invention;

[0033] Figure 10 This is a schematic diagram of the structure of the wastewater purification tank, waste liquid collection tank, collar, and side storage pipe provided by the present invention;

[0034] Figure 11This is a schematic diagram of the spherical support head and spherical kneading head provided by the present invention;

[0035] Figure 12 A schematic diagram of the spherical kneading head, extension arm, and drive groove arm provided by the present invention;

[0036] Figure 13 This is a cross-sectional view of the water pipe provided by the present invention.

[0037] In the diagram: 1. Cold chain food sample; 11. Base; 12. Tank; 121. Support column; 122. Plate seat; 123. Handle; 13. Cover; 14. Guide column; 15. Flexible ring; 16. Vertical frame; 17. Connecting rod; 18. Pressing frame; 19. Pressure roller; 21. U-shaped seat; 22. Spherical support head; 23. Spherical kneading head; 231. Extension arm; 232. Drive tank arm; 233. Synchronization handle; 24. Water inlet pipe; 25. Drain pipe; 26. Hose I; 31. Bottom seal; 311 32. Sealing ring; 32. Frame clamp; 321. Semi-circular sleeve; 322. Heating wire; 323. Push head; 324. Pin; 325. Electromagnet; 326. Cutting seat; 33. Linear electric cylinder I; 331. Bidirectional groove arm; 34. Flocculant dosing tank; 341. Conduit I; 35. Wastewater purification tank; 351. Conduit II; 352. Arc baffle; 36. Waste liquid collection tank; 37. Collar; 38. Side storage pipe; 39. Pumping pipe; 391. Conical structure; 392. Flexible hose II. Detailed Implementation

[0038] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0039] The components of the embodiments of the invention described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0040] Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Furthermore, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0044] Example 1:

[0045] like Figure 1 , Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 and Figure 9 As shown, this embodiment provides a cold chain food thawing wastewater testing and purification device, including a thawing chamber and a wastewater purification tank 35. The thawing chamber is used to hold the cold chain food sample 1. The thawing chamber is equipped with a positioning component for clamping the cold chain food sample 1 and a temperature control component for thawing the cold chain food sample 1. The wastewater purification tank 35 is located on the lower side of the bottom of the thawing chamber. The upper side of the bottom of the thawing chamber is equipped with a bottom seal 31 with a built-in monitoring probe. Frame-shaped clamps 32 are symmetrically slidably installed on both sides of the bottom seal 31. Heat-sealing components are embedded in the edges of the frame-shaped clamps 32. A suction pipe 39 with a valve structure is connected to the upper side of the wastewater purification tank 35. The upper end of the suction pipe 39 can be inserted into the packaging bag of the cold chain food sample 1 to guide and discharge the liquid generated inside the thawing of the cold chain food sample 1 in a closed manner. A filter screen is provided on the inner side of the top of the suction pipe 39 to intercept debris and residue, avoiding the difficulty of subsequent wastewater treatment due to debris and residue entering the wastewater purification tank 35.

[0046] like Figure 1 , Figure 2 , Figure 3 and Figure 5 As shown, the thawing chamber includes a tank 12 and a cover 13. The tank 12 is fixedly installed on the base 11. The waste liquid collection tank 36 is detachably connected to the column at the bottom of the tank 12 via a cross arm. The guide column 14 at the bottom of the cover 13 is slidably connected to the base 11. A flexible ring 15 is sleeved on the top of the guide column 14. The bottom of the flexible ring 15 can abut against the upper side of the base 11 to avoid mechanical damage caused by repeated operation of the components. The positioning components include a pressing frame 18 and a support column 121 that can press against the top and bottom edges of the cold chain food sample 1. The pressing frame 18 and the support column 121 are respectively connected to the cover 13 and the tank 12.

[0047] like Figure 8 and Figure 9 As shown, the heat-sealing component uses three sets of parallel and zigzag-arranged heating wires 322. The heating wires 322 located at the edge are used to heat-seal the packaging bag, and the heating wires 322 located in the middle are used to melt the edge of the packaging bag corresponding to the thawing liquid storage area.

[0048] like Figure 10 As shown, a waste liquid collection tank 36 is detachably and fixedly installed on the side of the wastewater purification tank 35. Multiple collars 37 are rotatably installed on the side of the waste liquid collection tank 36. An arc-shaped baffle 352 is fixedly installed on the inner side of the wastewater purification tank 35. The outer side of the arc-shaped baffle 352 abuts against the inner side of the collar 37. A side storage tube 38 is detachably and fixedly connected to the outer side of the collar 37. Microbial detection reagents, heavy metal detection reagents, decomposing bacteria and ozone are placed in the multiple side storage tubes 38 respectively.

[0049] The specific details of the cold chain food thawing wastewater testing and purification equipment using the method described in this application are as follows:

[0050] Preparations before use;

[0051] Place the cold chain food sample 1 in the thawing chamber. Select the appropriate temperature control component and temperature control parameters based on the size and type of the cold chain food sample 1 to avoid the sample from overheating due to excessive temperature.

[0052] The thawing fluid inside the cold chain food sample 1 was isolated separately;

[0053] First, the temperature control unit is activated to thaw the cold chain food sample 1. As the thawing process progresses, the liquid generated inside the cold chain food sample 1 during thawing gathers at the bottom of the packaging bag. Under the action of gravity, the thawing liquid forms a downward bulging area at the bottom of the packaging bag.

[0054] Then, control the two frame clamps 32 to move towards each other in a synchronized manner, so that the bottom of the packaging bag is further raised, and continue to move towards each other until they are pressed together, thus separating the inside of the cold chain food sample 1 packaging bag into a sample storage area and a thawing liquid storage area.

[0055] The thawing fluid flows out of the sample and accumulates at the bottom of the packaging. Since the sample storage area and the thawing fluid storage area are separated by two frame-shaped clamps 32, the thawing fluid is not easy to flow back into the sample storage area and will not have an adverse effect on the quality of the sample, so as to facilitate subsequent testing and recycling of the sample.

[0056] The thawing fluid in cold chain food sample 1 was drained.

[0057] Install the suction pipe 39 on the top of the sewage purification tank 35, and insert the horizontal arm on the side of the waste liquid collection tank 36 into the column at the bottom of the tank 12. Manually control the horizontal arm to rise vertically on the column, causing the sewage purification tank 35, the waste liquid collection tank 36 and the suction pipe 39 to move upward synchronously, so that the suction pipe 39 passes through the bottom of the thawing chamber and is then inserted into the sealing ring 311 on the bottom seal seat 31, and finally inserted into the packaging bag of the cold chain food sample 1 to seal and export the thawing liquid in the thawing liquid storage area.

[0058] The bottom outer side of the bottom seal seat 31 is kept sealed to the inside of the thawing chamber, and the outer side of the suction pipe 39 is in contact with the inner side of the sealing ring 311 on the bottom seal seat 31 to prevent leakage of thawing fluid.

[0059] Pathogens were detected in the thawed fluid extracted from inside the cold chain food sample 1;

[0060] by Figure 10 Taking the state as an example, the collar 37 is manually controlled to rotate counterclockwise around its own axis, so that the thawing fluid enters the side storage tube 38 on the side of the designated collar 37. The microbial detection reagent in the side storage tube 38 is used to detect whether the thawing fluid contains pathogens. The edge of the collar 37 is always in contact with the waste liquid collection tank 36 to form a closed container. The wastewater purification area accounts for a smaller proportion of the overall containment space of the cold chain food sample 1, thereby reducing the equipment maintenance pressure while optimizing equipment costs.

[0061] Purify the thawing wastewater in the sewage purification tank 35 and the waste liquid collection tank 36;

[0062] by Figure 10Taking the state as an example, the collar 37 is manually controlled to rotate clockwise around its own axis, releasing the ozone and decomposing bacteria originally stored in the side storage tube 38 on the side of the collar 37 into the sewage purification tank 35 and the waste liquid collection tank 36 in sequence. Taking advantage of the high solubility and strong reactivity of ozone at low temperatures, it penetrates the cell membrane of microorganisms, destroys the enzyme system and DNA, decomposes the large molecular organic matter such as oil, protein, and polysaccharide in the wastewater, and kills pathogens in the wastewater. The decomposing bacteria include Pseudomonas and Bacillus, which are used to decompose the small molecular organic matter after ozone pretreatment, such as fatty acids and short-chain carbohydrates. Through biological metabolism, the organic matter is finally converted into carbon dioxide and water, avoiding the disinfection byproducts that may be generated by traditional chemical methods.

[0063] Post-processing;

[0064] Three sets of parallel and zigzag-arranged heating wires 322 are used to heat-seal the edges of the sample storage area and the thawing fluid storage area, and to melt and break the connection between the sample storage area and the thawing fluid storage area, completely separating the sample storage area and the thawing fluid storage area and sealing the separation point. The thawing fluid is completely sealed between the bottom seal 31, the frame clamp 32, the sewage purification tank 35, the waste liquid collection tank 36 and the suction pipe 39, preventing the thawing fluid from being exposed in the tank 12 and the cover 13 and causing internal equipment contamination, and preventing the thawing fluid from flowing around in the bottom seal 31 and the two frame clamps 32. This effectively isolates the wastewater sample from the external environment, avoids internal equipment contamination, and eliminates the problem of sample cross-contamination and odor escape during the testing process.

[0065] Using the above-described operation of this application, the thawing fluid in each stage will not be exposed to the air or the thawing chamber, thereby achieving a fully enclosed wastewater treatment process. In addition, during the process of exporting the thawing fluid, the cold chain food sample 1 remaining in the sample storage area will not be contaminated by air and impurities, so that the food can be reused. The food may experience a decrease in taste due to thawing and refreezing, but it can be used for lower-standard purposes such as pet food instead of human consumption, without causing resource waste, avoiding economic losses and the cumbersome process of subsequent waste disposal.

[0066] This application utilizes an arc-shaped baffle 352 to shield the ends of multiple side storage tubes 38 near the collar 37. Specifically, the arc-shaped baffle 352 is made of iron-cobalt-nickel material with an outer rubber coating. A magnetic sheet is embedded at the connection between the collar 37 and the side storage tubes 38. The magnetic attraction between the arc-shaped baffle 352 and the magnetic sheet keeps the multiple side storage tubes 38 in a sealed state.

[0067] In this embodiment, the temperature control component includes an electric heating cable and an air gun. The electric heating cable is laid on the bottom upper side of the tank 12, and the air gun is installed on the top lower side of the cover 13. The heat generated by the electric heating cable and the room temperature airflow continuously supplied by the air gun, which is slightly higher than the temperature of the cold chain food sample 1 itself, are used to heat treat the cold chain food sample 1, so as to promote the rapid thawing of the cold chain food sample 1. This is suitable for cold chain foods with low aging temperature, such as seafood.

[0068] To facilitate the smooth insertion of the suction tube 39 into the packaging bag, such as Figure 8 and Figure 9 As shown, a semi-circular sleeve 321 is fixedly installed on the inner side of the frame clamp 32. The inner diameter of the semi-circular sleeve 321 corresponds to the outer diameter of the suction tube 39. When the two frame clamps 32 clamp the packaging bag, the two semi-circular sleeves 321 correspond to the two sides of the defrosting liquid storage area at the bottom of the packaging bag, and slightly clamp the packaging bag. As the suction tube 39 moves vertically upward, the semi-circular sleeves 321 apply a limiting effect to the packaging bag, so that the suction tube 39 can be smoothly inserted into the packaging bag.

[0069] Example 2:

[0070] The features that are the same as those in Embodiment 1 will not be repeated here. The difference between this embodiment and Embodiment 1 is that: Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, in this embodiment, the frame-shaped clamp 32 is obliquely slidably mounted on the bottom sealing seat 31. A trapezoidal slider is provided at the bottom of the frame-shaped clamp 32. The bottom sealing seat 31 is provided with a sliding groove that can be fitted and slid with the trapezoidal slider. Two limiting rings are detachably and fixedly installed on the bottom middle side of the slot box 12. The disc seat 122 is rotatably mounted between the two limiting rings. A handle 123 is provided at the bottom of the disc seat 122. The bottom sealing seat 31 is detachably connected to the disc seat 122. By holding the handle 123 and controlling its rotation, the multiple frame-shaped clamps 32 are controlled to open and close repeatedly, pressing the defrosting liquid storage area at the bottom of the packaging bag, so that the bottom of the packaging bag gradually changes from a shape that radiates outwards to a shape that extends into a narrow strip, corresponding to the gap between the two frame-shaped clamps 32.

[0071] The center of the disc base 122 is integrally formed with a sealing ring 311, which is fitted and plugged into the annular structure at the bottom of the bottom seal seat 31. Furthermore, threaded grooves and threaded protrusions can be respectively provided on the outer side of the sealing ring 311 and the inner side of the annular structure. The threaded grooves and threaded protrusions are connected by interlocking threads to achieve quick installation of the bottom seal seat 31 on the disc base 122.

[0072] In this application, for the sliding control method of the frame clamp 32, one optional technical solution is: a linear electric cylinder for driving the frame clamp 32 to slide is installed on the bottom sealing seat 31. The installation angle of the linear electric cylinder is consistent with the sliding direction of the frame clamp 32. The two linear electric cylinders are activated to control the frame clamps 32 on both sides of the bottom sealing seat 31 to slide synchronously.

[0073] In this application, another optional technical solution for the sliding control method of the frame clamp 32 is as follows: a linear electric cylinder I 33 is detachably installed on the disc base 122, a bidirectional grooved arm 331 is connected to the movable end of the linear electric cylinder I 33, and pins 324 are slidably installed on both sides of the bidirectional grooved arm 331. The pins 324 are detachably installed on the side of the frame clamp 32 by means of thread engagement.

[0074] In use, first install the two linear electric cylinders I33 on the disc base 122, then let multiple pins 324 pass through the two bidirectional slot arms 331 respectively, and finally insert and lock the pins 324 to the frame clamp 32. Since the pins 324 can be disassembled from the side of the frame clamp 32, the linear electric cylinders I33 can be stably installed on the disc base 122, improving the ease of disassembling the disc base 122 on the slot box 12.

[0075] Example 3:

[0076] The features that are the same as those in Embodiment 1 will not be repeated here. The difference between this embodiment and Embodiment 1 is that: Figure 10 As shown, in this embodiment, the side storage tube 38 and the collar 37 are connected by threaded engagement; an inlet tube is provided at the end of the side storage tube 38 away from the collar 37, and a self-sealing pipe joint or cap is installed on the inlet tube. By inserting the ozone storage tank into the self-sealing pipe joint, ozone and other gaseous materials are added; by opening and closing the cap, liquid materials such as microbial detection reagents and decomposing agents are added.

[0077] The connection method and sealing details of the multiple collars 37 on the waste liquid collection tank 36 are as follows:

[0078] like Figure 10 As shown, each collar 37 is provided with at least two arc-shaped grooves, and the waste liquid collection tank 36 is provided with multiple sets of pins, with two pins in each set. The two pins in the same set are respectively engaged and slidably connected with the two arc-shaped grooves on the collar 37, ensuring that the waste liquid collection tank 36 and the collar 37 are always in a coaxial state. The inner edge of the collar 37 can fit in full circle with the inner edge of the waste liquid collection tank 36, ensuring the internal sealing of the components.

[0079] Example 4:

[0080] The features that are the same as those in Embodiment 1 will not be repeated here. The difference between this embodiment and Embodiment 1 is that: Figure 3 and Figure 4 As shown, in this embodiment, two hanging brackets 16 are fixedly installed on the lower top side of the cover 13. Connecting rods 17 are rotatably connected to both sides of the hanging brackets 16. A torsion spring is fixedly installed between the hanging brackets 16 and the connecting rods 17. A pressing frame 18 is rotatably connected between the two connecting rods 17 on the same side. Multiple pressing rollers 19 are rotatably installed on the pressing frame 18. Multiple spherical protrusions are integrally formed on the outer side of the pressing rollers 19 located at the edge, which knead and press the surface of the cold chain food sample 1, making it easier for the thawing liquid to separate from the cold chain food sample 1.

[0081] Since the pressing frame 18 can rotate freely between the two connecting rods 17 on the same side, the multiple pressing rollers 19 can adapt to the irregular surface of the top of the cold chain food sample 1, and use the torsion spring to continuously apply a force to the two connecting rods 17 on the hanging frame 16 to press the top of the cold chain food sample 1.

[0082] To achieve the desired effect of kneading and flattening the top area of ​​the outer packaging bag of cold chain food sample 1, such as... Figure 1 As shown, a linear electric cylinder II for driving the guide column 14 to slide is installed on the base 11. When the linear electric cylinder II is started, the vertical distance between the vertical frame 16 and the trough 12 is periodically adjusted, so that the tension of the torsion spring changes. The pressing pressure and pressing position of the pressure roller 19 on the top area of ​​the packaging bag are dynamically adjusted. When the vertical distance between the vertical frame 16 and the trough 12 is shortened, the two sets of pressure rollers 19 rotate about their own axes, and knead the packaging bag from the middle to both sides, so that it is easy to flatten out, providing a further bulge for the defrosting liquid storage area at the bottom of the packaging bag.

[0083] At this time, a sealing edge I is integrally formed on the upper middle part of the base 11, and a sealing edge II is provided on the inner side of the cover 13. The sealing edge I can fit with the sealing edge II, so that the sealing between the base 11 and the cover 13 is ensured while adjusting the pressing pressure of the pressure roller 19 on the pressing frame 18 on the cold chain food sample 1.

[0084] Example 5:

[0085] The features that are the same as those in Embodiment 1 will not be repeated here. The difference between this embodiment and Embodiment 1 is that: Figure 5 , Figure 6 , Figure 11 and Figure 12As shown, in this embodiment, the support column 121 is fixedly installed at the upper corner of the bottom of the tank 12. A U-shaped seat 21 is fixedly installed on the tank 12, and a ball-shaped support head 22 and a ball-shaped kneading head 23 are respectively installed on the multiple U-shaped seats 21. The four corners of the bottom of the cold chain food sample 1 are connected to the support column 121, and the remaining positions of the bottom of the cold chain food sample 1 abut against the spherical surfaces at the top of the multiple ball-shaped support heads 22 and the ball-shaped kneading heads 23. This adapts to the deformation problem of the cold chain food sample 1 after thawing and ensures that the cold chain food sample 1 is fully fitted with the ball-shaped support heads 22 and the ball-shaped kneading heads 23, forming multiple raised and recessed areas at the bottom of the packaging bag so that the thawing liquid can gather together.

[0086] The spherical kneading head 23 is rotatably mounted on the corresponding U-shaped seat 21. The U-shaped seats 21 corresponding to the multiple spherical kneading heads 23 are distributed at equal angular intervals around the rotation center of the disc seat 122. The spherical kneading head 23 is provided with a toothed structure and an extension arm 231 on its side. The pin at the end of the extension arm 231 is engaged and slidably connected with the drive groove arm 232. The drive groove arm 232 is vertically slidably connected with the groove box 12.

[0087] The pressing force of the pressing frame 18 on the top of the cold chain food sample 1 is periodically adjusted. When the pressing force of the pressing frame 18 on the top of the cold chain food sample 1 is at a low level, the top area of ​​the outer packaging bag of the cold chain food sample 1 is easily deformed by stretching. At this time, multiple spherical twisting heads 23 are controlled to rotate synchronously. The toothed structure on the spherical twisting heads 23 is used to pull the packaging bag of the cold chain food sample 1, so that the bottom of the packaging bag bulges down further. This allows the liquid generated from the thawing inside the cold chain food sample 1 to better collect in this area, improving the adequacy of the thawing liquid collection.

[0088] In this application, for the movement control method of the drive arm 232, an optional technical solution is as follows: The bottom of the tank 12 is equipped with a linear electric cylinder III for controlling the vertical movement of the drive arm 232. Multiple linear electric cylinders III are started simultaneously to control the vertical movement of multiple drive arms 232. During this process, the pin at the end of the extension arm 231 slides on the drive arm 232, causing multiple spherical kneading heads 23 to rotate inward synchronously, pulling the bottom of the packaging bag of the cold chain food sample 1. During this process, the bottom of the packaging bag can bulge downward, so that the liquid generated by the thawing inside the cold chain food sample 1 can accumulate at the bulge, which is convenient for subsequent export, testing and purification.

[0089] In this application, another optional technical solution for the movement control of the drive slot arm 232 is: the vertical rods at the bottom of multiple drive slot arms 232 are connected by a synchronization handle 233, and the synchronization handle 233 is held and the movement is controlled to realize the synchronous vertical movement control of multiple drive slot arms 232.

[0090] Example 6:

[0091] The features that are the same as those in Embodiment 1 will not be repeated here. The difference between this embodiment and Embodiment 1 is that: Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 11 and Figure 12 As shown, in this embodiment, the temperature control component includes a warm water supply pipeline and an electric heating rod. The warm water supply pipeline includes an inlet pipe 24, a drain pipe 25, and a flexible hose I 26. The warm water supply pipeline is embedded between multiple spherical support heads 22 and spherical kneading heads 23. The electric heating rod and the battery for supplying energy to the electric heating rod are both embedded in multiple pressure rollers 19. The cold chain food sample 1 is heat-treated by the close contact between the warm water and the electric heating rod, which promotes the rapid thawing of the cold chain food sample 1. This method is suitable for cold chain foods with high aging temperatures, such as meat.

[0092] Specifically: A water inlet pipe 24 and a drain pipe 25 are respectively connected to the spherical support head 22 and the spherical kneading head 23 on one side. The spherical support head 22 and the spherical kneading head 23 are connected one by one through the flexible hose I 26. The ends of the water inlet pipe 24 and the drain pipe 25 penetrate the side of the tank 12 and extend outward from the tank 12. The other end of the water inlet pipe 24 is connected to the outlet of the constant temperature water tank through the pipe I equipped with the supply pump. The other end of the drain pipe 25 is connected to the inlet of the constant temperature water tank through the pipe II.

[0093] The ends of the inlet pipe 24, the outlet pipe 25, and the hose I 26 can be connected to the water inlets at the ends of the spherical support head 22 and the spherical kneading head 23 by means of a rotating sleeve, thereby avoiding damage to the pipeline caused by the spherical kneading head 23 during repeated reciprocating rotations.

[0094] Example 7:

[0095] The features that are the same as those in Embodiment 1 will not be repeated here. The difference between this embodiment and Embodiment 1 is that: Figure 13 As shown, in this embodiment, a conical structure 391 is integrally formed in the middle of the suction pipe 39. Multiple hoses II 392 are fixed and connected to the inner side of the conical structure 391. The multiple hoses II 392 are arranged at equal intervals along the axial direction of the suction pipe 39. One end of each hose II 392 located on the inner side of the suction pipe 39 extends a certain distance towards the bottom of the suction pipe 39 to form an L-shaped structure, which prevents the defrosting liquid from entering the suction pipe 39 through the hose II 392 on the upper side and then leaking out again from the suction pipe 39 on the lower side.

[0096] The tapered structure 391 in the middle of the suction pipe 39 allows the suction pipe 39 to be inserted into the packaging bag and automatically seal the leak at the bottom of the packaging bag. Then, multiple hoses II 392 are used to drain the thawing fluid at different heights, resulting in good drainage and preventing thawing fluid residue from remaining between the bottom seal seat 31 and the two frame clamps 32. This makes subsequent cleaning and maintenance very convenient.

[0097] Example 8:

[0098] The features that are the same as those in Embodiment 1 will not be repeated here. The difference between this embodiment and Embodiment 1 is that: Figure 7 and Figure 8 As shown, in this embodiment, multiple push heads 323 are slidably mounted at equal intervals along the edge of the frame clamp 32. The end of the push head 323 is provided with a groove that fits into the heating wire 322. The push head 323 has a horizontal L-shaped structure to ensure that the push head 323 remains sealed at any position on the frame clamp 32. A sliding pin made of iron-cobalt-nickel material is integrally formed on the push head 323. A spring is sleeved on the outside of the sliding pin. The two ends of the spring are respectively connected to the frame clamp 32 and the push head 323.

[0099] Under the action of the spring, the push head 323 always tends to extend outward. An electromagnet 325 is installed on the frame clamp 32. The electromagnet 325 is connected to the sliding pin by magnetic attraction. When the electromagnet 325 is activated, the push head 323 is controlled to retract inward, releasing the isolation between the sample storage area and the thawing fluid storage area. While ensuring the overall shape stability of the thawing fluid storage area, a path is formed between the sample storage area and the thawing fluid storage area for the residual thawing fluid to continue flowing into the thawing fluid storage area. This allows the thawing fluid in the packaging bag to be fully discharged from the thawing fluid storage area by squeezing the packaging bag later.

[0100] Example 9:

[0101] The features that are the same as those in Embodiment 1 will not be repeated here. The difference between this embodiment and Embodiment 1 is that: Figure 1 , Figure 2 , Figure 9 and Figure 10 As shown in this embodiment, the bottom of the tank 12 is provided with a flocculant dosing tank 34. The flocculant dosing tank 34 is connected to the sewage purification tank 35 through a conduit I 341. The flocculant in the flocculant dosing tank 34 is added to the sewage purification tank 35 through the conduit I 341. Under the synergistic effect with ozone, the rate of organic matter decomposition and odor generation in the wastewater are reduced. Thus, before the wastewater is finally discharged, only simple filtration is needed to achieve full purification.

[0102] Specifically: The top of the wastewater purification tank 35 is fixedly and connected to two conduits II 351. The two conduits II 351 are connected to conduit I 341 and suction pipe 39 respectively through sterile quick connectors, which makes operation convenient. Valves for controlling the flow or shut-off of the internal medium are respectively provided on conduit I 341, suction pipe 39 and the two conduits II 351. The valves can be wireless control valves, IoT electric valves or manual valves.

[0103] The inner diameter of the sealing ring 311 is larger than the maximum outer diameter of the suction pipe 39 with the valve, so that the bottom seal 31, the suction pipe 39 and the two frame clamps 32 can be removed from the equipment together. During this process, the liquid generated inside the cold chain food sample 1 after thawing is sealed and stored to avoid contamination of the inside of the equipment.

[0104] Example 10:

[0105] The features that are the same as those in Embodiment 1 will not be repeated here. The difference between this embodiment and Embodiment 1 is that: Figure 6 , Figure 7 and Figure 8 As shown, in this embodiment, a cutting seat 326 is slidably installed inside the frame-shaped clamp 32 on one side. A cutting blade is provided on the edge of the side of the cutting seat 326. The outer side of the cutting seat 326 abuts against the inner edge of the frame-shaped clamp 32. The cutting blade on the cutting seat 326 is used to cut the defrosting liquid storage area at the bottom of the packaging bag. This is to prevent the defrosting liquid from remaining on the packaging bag or being left open between the tank 12 and the cover 13, thus avoiding equipment contamination.

[0106] Among them, the movement control method of the cutting seat 326 can be achieved by installing a linear electric cylinder IV on the disc base 122. Since it is only necessary to control the cutting seat 326 to move deeper into the frame clamp 32 without moving it out again, it is only necessary to make the moving end of the linear electric cylinder IV abut against the extension handle of the cutting seat 326. There is no need to fix the two together, making it easy to remove the bottom seal 31 and the two frame clamps 32 from the disc base 122 together. In addition, the movement control of the cutting seat 326 can also be achieved by manually holding the extension handle.

[0107] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

[0108] Apart from the technical features described in the specification, the other technical features are known to those skilled in the art. To highlight the innovative features of this invention, the other technical features will not be described in detail here.

Claims

1. A cold chain food thawing wastewater testing and purification device, comprising a wastewater purification tank (35), characterized in that, The wastewater purification tank (35) is located on the bottom side of the thawing chamber for placing the cold chain food sample (1), and the thawing chamber is equipped with a positioning component for clamping the cold chain food sample (1). The bottom upper side of the thawing chamber is provided with a bottom sealing seat (31), and frame-shaped clamps (32) for sealing the packaging bag of the cold chain food sample (1) are symmetrically slidably installed on both sides of the bottom sealing seat (31). Heat sealing components are embedded in the edge of the frame-shaped clamps (32). The upper side of the wastewater purification tank (35) is connected to a suction pipe (39), which can penetrate the bottom of the thawing chamber and then be inserted into the sealing ring (311) on the bottom seal seat (31), and finally inserted into the packaging bag of the cold chain food sample (1). The wastewater purification tank (35) is detachably and fixedly installed with a waste liquid collection tank (36). Multiple collars (37) are rotatably installed on the side of the waste liquid collection tank (36). An arc-shaped baffle (352) is fixedly installed on the inner side of the wastewater purification tank (35). The outer side of the arc-shaped baffle (352) abuts against the inner side of the collar (37). A side storage tube (38) is detachably and fixedly connected to the outer side of the collar (37). The multiple side storage tubes (38) respectively contain microbial detection reagents, decomposing bacteria and ozone. The heat-sealing component employs three sets of parallel and zigzag-arranged heating wires (322). The heating wires (322) located at the edges are used to heat-seal the packaging bag, while the heating wires (322) located in the middle are used to melt the edges of the packaging bag corresponding to the thawing liquid storage area.

2. The cold chain food thawing wastewater testing and purification equipment according to claim 1, characterized in that, The thawing chamber includes a tank (12) and a cover (13). The tank (12) is fixedly installed on the base (11). The waste liquid collection tank (36) is detachably connected to the column at the bottom of the tank (12) via a cross arm. The guide column (14) at the bottom of the cover (13) is slidably connected to the base (11). The positioning components include a pressing frame (18) and a support column (121) that can be pressed against the top and bottom edges of the cold chain food sample (1). The pressing frame (18) and the support column (121) are respectively connected to the cover (13) and the tank (12).

3. The cold chain food thawing wastewater testing and purification equipment according to claim 1, characterized in that, The frame-shaped clamp (32) is slidably mounted on the bottom sealing seat (31), and the bottom of the slot box (12) is rotatably mounted on the disc seat (122), with the bottom sealing seat (31) connected to the disc seat (122).

4. The cold chain food thawing wastewater testing and purification equipment according to claim 2, characterized in that, Two vertical brackets (16) are fixedly installed on the lower top side of the cover (13). The two sides of the vertical brackets (16) are rotatably connected to the connecting rods (17). A torsion spring is fixedly installed between the vertical brackets (16) and the connecting rods (17). The pressing frame (18) is rotatably connected between the two connecting rods (17) on the same side. Multiple pressure rollers (19) are provided on the pressing frame (18).

5. The cold chain food thawing wastewater testing and purification equipment according to claim 2, characterized in that, The support column (121) is fixedly installed at the upper corner of the bottom of the tank (12). A U-shaped seat (21) is fixedly installed on the tank (12). A ball-shaped support head (22) and a ball-shaped kneading head (23) are connected to the multiple U-shaped seats (21). A water inlet pipe (24) and a drain pipe (25) are respectively connected to the ball-shaped support head (22) and the ball-shaped kneading head (23) on one side. The ball-shaped support head (22) and the ball-shaped kneading head (23) are connected one by one through the hose I (26).

6. The cold chain food thawing wastewater testing and purification equipment according to claim 5, characterized in that, The spherical kneading head (23) is rotatably mounted on the corresponding U-shaped seat (21). The spherical kneading head (23) has a toothed structure and an extension arm (231) on its side. The pin at the end of the extension arm (231) is engaged and slidably connected with the drive groove arm (232). The drive groove arm (232) is vertically slidably connected with the groove box (12).

7. The cold chain food thawing wastewater testing and purification equipment according to claim 6, characterized in that, The bottom of the tank (12) is provided with a flocculant dosing tank (34), which is connected to the sewage purification tank (35) through conduit I (341).

8. The cold chain food thawing wastewater testing and purification equipment according to claim 1, characterized in that, A cutting seat (326) is slidably installed on one side of the frame fixture (32). A cutting blade is provided on the edge of the side of the cutting seat (326). The outer side of the cutting seat (326) abuts against the inner edge of the frame fixture (32).

9. The cold chain food thawing wastewater testing and purification equipment according to claim 1, characterized in that, A semi-circular sleeve (321) is fixedly installed on the inner side of the frame clamp (32), and the inner diameter of the semi-circular sleeve (321) corresponds to the outer diameter of the suction pipe (39).

10. The cold chain food thawing wastewater testing and purification equipment according to claim 1, characterized in that, The middle part of the pipe (39) is integrally formed with a conical structure (391). Multiple flexible hoses II (392) are fixed and connected to the inner side of the conical structure (391). The other end of the flexible hoses II (392) extends to the lower side of the pipe (39).

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