Positive and negative pressure pickling device

Abstract

The present application relates to the technical field of agricultural and livestock product pickling device, and specifically relates to a positive and negative pressure pickling device, which comprises a shell, a pressure pickling tank arranged in the shell, a control system arranged on one side of the pressure pickling tank, a positive and negative pressure system arranged on one side of the pressure pickling tank, a vacuum pump arranged on one side of the pressure pickling tank, an air compressor arranged on the other side of the pressure pickling tank and a pickling trolley arranged in the pressure pickling tank. The present application can realize an efficient pickling process through the arrangement of the pressure pickling tank. The arrangement of the control system enables the operator to realize precise control over the pickling process. The positive and negative pressure system can adjust the pressure of the system as required. The arrangement of the vacuum pump can make the pressure reduction process in the pressure pickling tank more rapid. The arrangement of the air compressor can promote the pressure control in the pickling process. The arrangement of the pickling trolley can help improve the production efficiency and reduce the demand for material handling.

Description

Technical Field

[0001] This invention relates to the field of pickling equipment for agricultural and livestock products, and more specifically, to a novel positive and negative pressure pickling device. Background Technology

[0002] Pickling is an important processing method for food preservation, extending the shelf life of food, and making flavored foods. It is widely used in the processing of various agricultural and livestock products, such as salted eggs, preserved eggs, pickles, crispy ginger, and pickled fish.

[0003] Traditional pickling methods primarily rely on natural permeation techniques such as coating with mud or immersion, resulting in long pickling times (often over 15 days). The hygiene of the pickling environment cannot be guaranteed during this process, the pickling solution can easily corrode the pickling tank, and multiple materials cannot be pickled simultaneously. Pulsed pressure pickling technology significantly reduces pickling time, improves pickling quality, and is more suitable for modern production.

[0004] Currently, many patents utilize pulsed pressure pickling: for example, Chinese patent CN202221431402.3 authorizes a hydraulic draining pickling device, which uses a hydraulic system for automated pickling, reducing labor costs, but the pickling speed is slow and the pickling cycle is long; Chinese patent CN201821439214.9 authorizes a novel swing-type pickling device, which uses pulsed pressure pickling technology to stir the pickling liquid through the balanced swing of the device, but this device only uses positive pressure pulsation, and the effect of pulsed pressure still has room for improvement; Chinese patent CN202320758502.5 authorizes a drum-type pickling device, which uses a drum to drive the circulation of pickling liquid, ensuring the durability of the pickling tank and enabling large-scale poultry egg processing, but this device can only be applied to poultry egg pickling, with a narrow application scope; currently, there is no device suitable for mass production in family workshops that can pickle multiple materials at once. Summary of the Invention

[0005] In view of this, the present invention proposes a novel positive and negative pressure pickling device, mainly to solve the problems of long pickling cycle, poor quality of pickled products, inability to pickle multiple materials in large quantities at the same time, easy contamination of pickling liquid, and short service life of pickling container.

[0006] In one aspect, the present invention proposes a novel positive and negative pressure pickling device, comprising:

[0007] case;

[0008] A pressure pickling tank, which is disposed inside the housing;

[0009] A control system is disposed on one side of the pressure pickling tank, and the control system is located inside the housing;

[0010] A positive and negative pressure system is provided on one side of the pressure pickling tank, and the positive and negative pressure system is connected to the pressure pickling tank and the control system respectively;

[0011] A vacuum pump is located on one side of the pressure marinating tank, and the vacuum pump is connected to both the pressure marinating tank and the control system.

[0012] An air compressor is located on the other side of the pressure marinating tank, and the air compressor is connected to both the pressure marinating tank and the control system.

[0013] The pickling cart is located inside the pressure pickling tank.

[0014] In some embodiments of this application, a first threaded hole, a second threaded hole, and a third threaded hole are provided on one side wall of the pressure pickling tank, and a pressure sensor is provided in the first threaded hole, a safety valve is provided in the second threaded hole, and a second three-way valve is provided in the third threaded hole.

[0015] In some embodiments of this application, the pressure pickling tank is provided with guide rails.

[0016] In some embodiments of this application, the positive and negative pressure system includes:

[0017] A pressure solenoid valve is located on one side of the pressure pickling tank, and the pressure solenoid valve is connected to the air compressor through an inlet and outlet pipe;

[0018] A pressure reducing solenoid valve is disposed on one side of the pressure pickling tank. The pressure reducing solenoid valve is connected to the pressure increasing solenoid valve through a first three-way valve, and the first three-way valve and the second three-way valve are connected through the pressure reducing solenoid valve.

[0019] The third three-way valve is located on one side of the pressure pickling tank. The third three-way valve is connected to the vacuum pump through a suction pipe and is connected to the second three-way valve.

[0020] In some embodiments of this application, the positive and negative pressure system further includes a manual ball valve, which is disposed on one side of the pressure pickling tank and is connected to the third three-way valve via a fourth three-way valve.

[0021] In some embodiments of this application, the pickling vehicle includes:

[0022] The supporting frame is a hollow cubic structure;

[0023] The frame plate comprises two layers, which are disposed on the upper and lower surfaces of the support frame, and the frame plate has a plurality of barrel placement holes for placing pickling barrels.

[0024] In some embodiments of this application, the pickling cart further includes universal wheels disposed on both sides of the lower bottom surface of the support frame, and the universal wheels move on the guide rail.

[0025] In some embodiments of this application, the housing includes:

[0026] The outer shell frame is a hollow cubic structure. Each surface of the outer shell frame is provided with an outer shell plate, which is used for sealing. Ventilation holes are provided on the outer shell plate located on the side of the outer shell frame.

[0027] A load-bearing beam, which is connected to the outer shell frame, and the load-bearing beam is disposed on the lower surface of the outer shell plate located on the lower bottom surface of the outer shell frame;

[0028] An exhaust plate is disposed on the outer shell plate located on the lower bottom surface of the outer shell frame.

[0029] In some embodiments of this application, the housing further includes universal wheels, which are disposed on both sides of the lower bottom surface of the housing frame.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] During the pulsating pressure cycle, not only does the pressurizing solenoid valve control the air compressor to pressurize the exhaust gas inside the pickling tank, promoting the entry of molecules such as sodium chloride into the material, but after pressurization is completed, the depressurizing solenoid valve also controls the air compressor to draw in air and depressurize the air inside the pickling tank, making the air pressure inside the pickling tank equal to the atmospheric pressure. At this time, the depressurizing solenoid valve controls the vacuum pump to draw in air and create a vacuum inside the pickling tank, making the air pressure inside the pickling tank lower than the atmospheric pressure, thereby promoting the expulsion of water molecules inside the material, making the pickling rate faster, the pickling effect better, and the quality of the pickled products higher.

[0032] Instead of directly injecting the pickling liquid into the pickling tank, the material is placed into the pickling bucket after it is placed in the bucket, and then the pickling liquid is injected into the pickling bucket. This avoids direct contact between the pickling liquid and the inner wall of the tank, solving the problem that the pickling liquid is easily contaminated by contact with the metal tank during the pickling process. At the same time, it increases the durability of the pickling tank and avoids the problem of the pickling liquid corroding the inner wall of the tank.

[0033] During the pickling process, each pickling barrel is pickled independently without interfering with each other. Different materials can be pickled simultaneously according to the pickling time to produce different products.

[0034] Multiple pickling barrels can be used to hold materials during pickling. The pickling process can be controlled by a control system, and loading and unloading materials can be done by a single person. This solves the problem of high manpower requirements in family workshop-style production. At the same time, the large number of pickling barrels and the large amount of materials pickled each time make it suitable for large-scale pickling. Attached Figure Description

[0035] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. In the drawings:

[0036] Figure 1 This is a schematic diagram of the internal structure of the housing provided in an embodiment of the present invention;

[0037] Figure 2 A perspective top view of the housing provided in an embodiment of the present invention;

[0038] Figure 3 This is a schematic diagram of the internal structure of a pressure pickling tank provided in an embodiment of the present invention;

[0039] Figure 4 This is a schematic diagram of the structure of the pickling vehicle provided in an embodiment of the present invention;

[0040] Figure 5 A perspective bottom view of the housing provided in an embodiment of the present invention;

[0041] In the diagram: 1. Control system; 2. Pressure sensor; 3. Air compressor; 4. Pressure pickling tank; 5. First three-way valve; 6. Pressurizing solenoid valve; 7. Safety valve; 8. Fourth three-way valve; 9. Manual ball valve; 10. Pressure reducing solenoid valve; 11. Second three-way valve; 12. Third three-way valve; 13. Inlet and outlet pipes; 14. Vacuum pump; 15. Suction pipe; 16. Frame plate; 17. Pickling tank; 18. Support frame; 19. Guide rail; 20. Universal wheel; 21. Tank hole; 22. Outer shell plate; 23. Ventilation hole; 24. Outer shell frame; 25. Shell; 26. Universal ground wheel; 27. Load-bearing beam; 28. Exhaust plate. Detailed Implementation

[0042] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0043] See Figure 1-5 As shown, this embodiment provides a novel positive and negative pressure pickling device, including:

[0044] Casing 25;

[0045] Pressure pickling tank 4 is disposed inside the housing 25;

[0046] A control system 1 is disposed on one side of the pressure pickling tank 4, and the control system 1 is located inside the housing 25;

[0047] A positive and negative pressure system is provided on one side of the pressure pickling tank 4, and the positive and negative pressure system is connected to the pressure pickling tank 4 and the control system 1 respectively;

[0048] A vacuum pump 14 is disposed on one side of the pressure pickling tank 4, and the vacuum pump 14 is connected to both the pressure pickling tank 4 and the control system 1.

[0049] An air compressor 3 is located on the other side of the pressure pickling tank 4, and the air compressor 3 is connected to both the pressure pickling tank 4 and the control system 1.

[0050] The pickling cart is located inside the pressure pickling tank 4.

[0051] It is understood that the arrangement inside the pressure pickling tank 4 in this embodiment enables a highly efficient pickling process. Containing the pressure pickling tank 4 within the housing 25 helps ensure the sealing and efficiency of the pickling process. The control system 1, located on one side of the pressure pickling tank 4, allows operators to precisely control the pickling process, helping to ensure the quality and consistency of the pickled product. The positive and negative pressure system, connected to the pressure pickling tank 4 and the control system 1, provides flexibility and adaptability, allowing the system pressure to be adjusted as needed to meet different product or production requirements. The vacuum pump 14, located on one side of the pressure pickling tank 4, provides the power for creating negative pressure inside the tank 4, enabling the tank to reach its peak negative pressure more quickly. The air compressor 3, located on the other side of the pressure pickling tank 4, provides the necessary gas pressure, facilitating pressure control during the pickling process and ensuring uniform distribution of the pickling liquid. The pickling cart, located inside the pressure pickling tank 4, helps improve production efficiency, reduces the need for material handling, and makes the pickling process more convenient.

[0052] Specifically, in this embodiment, the lid of the pressure pickling jar 4 is a screw-on type. By manually rotating the lid, the lid engages with the inside of the jar body to complete the seal.

[0053] In one specific embodiment of this application, a first threaded hole, a second threaded hole and a third threaded hole are provided on one side wall of the pressure pickling tank 4, and a pressure sensor 2 is provided in the first threaded hole, a safety valve 7 is provided in the second threaded hole, and a second three-way valve 11 is provided in the third threaded hole.

[0054] It is understood that, in this embodiment, by installing a pressure sensor 2 in the first threaded hole, pressure changes within the pickling tank can be monitored in real time, facilitating precise control of the pickling process and ensuring operation within a safe working range. A safety valve 7 is installed in the second threaded hole; if the pressure exceeds the set range during pickling, the safety valve 7 will automatically release the pressure, preventing excessive pressure on the equipment and ensuring the safety of the operator and equipment. A second three-way valve 11 is installed in the third threaded hole, providing additional control over fluid flow. It can adjust the flow direction of the pickling liquid or modify the system's flow pattern, making it more flexible to adapt to different production needs. Combining the pressure sensor 2 in the first threaded hole, the safety valve 7 in the second threaded hole, and the second three-way valve 11 in the third threaded hole, comprehensive monitoring and control of pressure, safety, and fluid flow can be achieved, ensuring the stability and efficiency of the pickling process.

[0055] In one specific embodiment of this application, the pressure pickling tank 4 is provided with a guide rail 19.

[0056] In one specific embodiment of this application, the positive and negative pressure system includes:

[0057] A pressure solenoid valve 6 is disposed on one side of the pressure pickling tank 4, and the pressure solenoid valve 6 is connected to the air compressor 3 through an inlet and outlet pipe 13;

[0058] A pressure reducing solenoid valve 10 is disposed on one side of the pressure pickling tank 4. The pressure reducing solenoid valve 10 is connected to the pressure increasing solenoid valve 6 through a first three-way valve 5, and the first three-way valve 5 and the second three-way valve 11 are connected through the pressure reducing solenoid valve 10.

[0059] The third three-way valve 12 is located on one side of the pressure pickling tank 4. The third three-way valve 12 is connected to the vacuum pump 14 through the air extraction pipe 15. The third three-way valve 12 is also connected to the second three-way valve 11.

[0060] Understandably, in this embodiment, the pressurizing solenoid valve 6 is located on one side of the pressure pickling tank 4 and connected to the air compressor 3 via the inlet and outlet pipes 13, enabling rapid adjustment of the pressure inside the tank. The opening and closing operation of the pressurizing solenoid valve 6 can be achieved through the control system 1, allowing control of the pickling process under positive pressure conditions. The depressurizing solenoid valve 10 is located on one side of the pressure pickling tank 4 and connected to the pressurizing solenoid valve 6 via the first three-way valve 5, used to adjust the pressure inside the tank, ensuring rapid depressurization when needed. The first three-way valve 5 helps to achieve smooth pressure regulation when adjusting the passage between the depressurizing solenoid valve 10 and the pressurizing solenoid valve 6. The third three-way valve 12 is located on one side of the pressure pickling tank 4 and connected to the vacuum pump 14, enabling rapid air extraction from the tank during negative pressure pickling, reaching the negative pressure peak more quickly. Connected to the second three-way valve 11, it provides additional control over the fluid flow in the system. By adjusting the third three-way valve 12, the operating modes of the positive and negative pressure systems can be flexibly controlled to meet different production needs.

[0061] In one specific embodiment of this application, the positive and negative pressure system further includes a manual ball valve 9, which is disposed on one side of the pressure pickling tank 4, and is connected to the third three-way valve 12 through a fourth three-way valve 8.

[0062] In one specific embodiment of this application, the pickling vehicle includes:

[0063] The supporting frame 18 is a hollow cubic structure;

[0064] The frame plate 16 comprises two layers. The frame plate 16 is disposed on the upper and lower surfaces of the support frame 18, and the frame plate 16 has a plurality of barrel placement holes 21 for placing the pickling barrel 17.

[0065] In one specific embodiment of this application, the pickling cart further includes universal wheels 20, which are disposed on both sides of the lower bottom surface of the support frame 18, and the universal wheels 20 move on the guide rail 19.

[0066] Understandably, in this embodiment, a manual ball valve 9 is installed on one side of the pressure pickling tank 4 and connected to the third three-way valve 12 via a fourth three-way valve 8, allowing the operator to manually control the positive and negative pressure system pathways when needed. The support frame 18 of the pickling cart adopts a hollow cubic structure, which helps maintain the lightweight of the vehicle body while providing sufficient strength. The two-layer structure of the frame plate 16 and the barrel placement holes 21 allow the pickling barrels 17 to be easily placed and fixed, improving the stability of the transportation process. Universal wheels 20 are installed on both sides of the lower bottom surface of the support frame 18 and move on the guide rails 19, giving the pickling cart flexible mobility. The operator can easily move the pickling cart to different positions when needed, thereby optimizing the production process and pickling operations. The installation of the manual ball valve 9, along with the structure and mobility of the pickling cart, may make the entire pickling system more user-friendly. The operator can directly control the system through manual control, while the design of the pickling cart makes operation more convenient and efficient.

[0067] Specifically, in this embodiment, four universal wheels 20 are preferred, and the distance between the two frame plates 16 is preferably 210mm~220mm, allowing for the placement of two layers of pickling barrels 17. Each frame plate 16 preferably has eight barrel-placement holes 21, with a diameter of 150mm and a depth of 10mm, and both the size and depth of the holes are preferably equal. The lower diameter of the pickling barrel 17 is preferably 140mm, the upper diameter is preferably 170mm, and the capacity is preferably 2.5L. During pickling, different materials can be placed inside the pickling barrel 17, and the pickling liquid can only be placed inside the pickling barrel 17. Different foods can be pickled within one pickling cycle, and the finished product is easy to remove after pickling. If the pickling barrel 17 is corroded or damaged, it can be replaced to avoid excessive agitation of the pickling liquid and contamination from contact with metal, while also solving the problem of easy corrosion of the inner wall of the pickling tank.

[0068] In one specific embodiment of this application, the housing 25 includes:

[0069] The outer shell frame 24 is a hollow cubic structure. Each surface of the outer shell frame 24 is provided with an outer shell plate 22. The outer shell plate 22 is used for sealing, and ventilation holes 23 are provided on the outer shell plate 22 located on the side of the outer shell frame 24.

[0070] A load-bearing beam 27 is connected to the outer shell frame 24, and the load-bearing beam 27 is disposed on the lower surface of the outer shell plate 22 located on the lower bottom surface of the outer shell frame 24;

[0071] An exhaust plate 28 is disposed on the outer shell plate 22 located on the lower bottom surface of the outer shell frame 24.

[0072] In one specific embodiment of this application, the housing 25 further includes universal wheels 26, which are disposed on both sides of the lower bottom surface of the housing frame 24.

[0073] Understandably, in this embodiment, the outer shell frame 24 adopts a hollow cubic structure, which helps maintain the stability of the overall structure. The outer shell panels 22 are disposed on various surfaces of the outer shell frame 24 to seal the system, helping to ensure the system remains stable during operation, and the sealing of the outer shell panels 22 helps prevent external substances from entering the system. Ventilation holes 23 are provided on the outer shell panels 22 located on the sides of the outer shell frame 24 to regulate airflow inside and outside the system, maintaining good ventilation inside the system, helping to control the temperature and humidity within the system 1, and ensuring normal equipment operation. The load-bearing beam 27 is connected to the outer shell frame 24 and disposed on the lower surface of the outer shell panels 22 on the bottom surface of the outer shell frame 24, providing additional support for the internal components of the system, enhancing the structural stability and load-bearing capacity of the entire system. The exhaust plate 28 is disposed on the outer shell panels 22 on the bottom surface of the outer shell frame 24, helping to expel waste gas or emissions generated inside the system, maintaining the cleanliness of the system, and ensuring good ventilation inside the system. The universal wheels 26 are located on both sides of the bottom surface of the outer frame 24, making the whole system portable and mobile, and allowing the operator to easily move the whole system to adapt to different workplaces and production needs.

[0074] Specifically, in this embodiment, the outer shell frame 24 is preferably 1200mm in length, 975mm in width, and 800mm in height, making it suitable for handling.

[0075] Specifically, in this embodiment, the pressure pickling tank 4, the support frame 18, the load-bearing beam 27, and the outer shell frame 24 are preferably made of 304 stainless steel.

[0076] Specifically, in this embodiment, the load-bearing beam 27 is preferably three beams.

[0077] Specifically, in this embodiment, the outer shell plate 22 and the frame plate 16 are preferably made of Q235 carbon steel and coated with RAL7035.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A positive and negative pressure pickling device characterized by, The utility model relates to a pressure pickling tank, and more particularly to a pressure pickling tank and pickling trolley. The utility model discloses a pressure pickling tank and pickling trolley, which comprises a shell, a pressure pickling tank arranged in the shell, a control system arranged on one side of the pressure pickling tank and located in the shell, a positive and negative pressure system arranged on one side of the pressure pickling tank and connected with the pressure pickling tank and the control system respectively, a vacuum pump arranged on one side of the pressure pickling tank and connected with the pressure pickling tank and the control system respectively, an air compressor arranged on the other side of the pressure pickling tank and connected with the pressure pickling tank and the control system respectively, a pickling trolley arranged in the pressure pickling tank, a first threaded hole, a second threaded hole and a third threaded hole formed in the side wall of the pressure pickling tank, a pressure sensor arranged in the first threaded hole, a safety valve arranged in the second threaded hole and a second three-way valve arranged in the third threaded hole, a guide rail arranged in the pressure pickling tank, the positive and negative pressure system comprising a pressurizing electromagnetic valve arranged on one side of the pressure pickling tank, the pressurizing electromagnetic valve being connected with the air compressor through an air inlet and exhaust pipe, a decompressing electromagnetic valve arranged on one side of the pressure pickling tank, the decompressing electromagnetic valve being connected with the pressurizing electromagnetic valve through a first three-way valve, the first three-way valve being connected with the second three-way valve through the decompressing electromagnetic valve, a third three-way valve arranged on one side of the pressure pickling tank, the third three-way valve being connected with the vacuum pump through an air exhaust pipe and connected with the second three-way valve, the positive and negative pressure system further comprising a manual ball valve arranged on one side of the pressure pickling tank, the manual ball valve being connected with the third three-way valve through a fourth three-way valve, the pickling trolley comprising a hollow cuboid support frame, a trolley frame plate comprising two layers arranged on the upper surface and the lower surface of the support frame, each layer of the trolley frame plate being provided with eight barrel placing holes for placing pickling barrels, and a universal wheel arranged on both sides of the lower bottom surface of the support frame and moving on the guide rail, the shell comprising a hollow cuboid shell frame, shell plate members arranged on each surface of the shell frame for sealing, ventilation holes formed in the shell plate members located on the side surface of the shell frame, a load-bearing beam connected with the shell frame and arranged on the lower surface of the shell plate members located on the lower bottom surface of the shell frame, and an exhaust plate arranged on the shell plate members located on the lower bottom surface of the shell frame, and the shell further comprising universal ground wheels arranged on both sides of the lower bottom surface of the shell frame. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ 2. The positive and negative pressure pickling device according to claim 1, characterized by ​ ​ ​ ​ 3. The positive and negative pressure pickling device according to claim 2, characterized by ​

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