Fruit and vegetable disinfection treatment device capable of generating slightly acidic electrolyzed water in situ and use method of fruit and vegetable disinfection treatment device

Abstract

The invention belongs to the technical field of fruit and vegetable disinfection equipment, and particularly relates to a fruit and vegetable disinfection treatment device capable of generating slightly acidic electrolyzed water in situ and a use method. A liftable material blocking assembly is arranged between the roller conveying device and the material box; the feeding end of the conveying belt is communicated with the discharging end of the roller conveying device; the cleaning nozzle is used for cleaning silt on the surfaces of the fruits and vegetables; the spraying end of the slightly acidic water-alkaline water spraying assembly is positioned right above the roller conveying device; liquid generated after spraying of the slightly acidic water-alkaline water spraying assembly enters the liquid recycling and filtering assembly to be filtered; the liquid outlet end of the slightly acidic water preparation assembly is communicated with the slightly acidic water-alkaline water spraying assembly, the liquid inlet end of the slightly acidic water preparation assembly is communicated with the liquid outlet end of the liquid recycling and filtering assembly, and recycled liquid is filtered by the liquid recycling and filtering assembly and then is introduced into the slightly acidic water preparation assembly to be used for preparing slightly acidic water.

Description

Technical Field

[0001] The present invention belongs to the technical field of fruit and vegetable disinfection equipment, and in particular relates to a fruit and vegetable disinfection treatment device for in-situ generation of slightly acidic electrolyzed water and a using method thereof. Background Art

[0002] Technologies for electrolyzing chloride ion solutions to generate bactericidal water are mostly known. The slightly acidic electrolyzed water obtained by electrolysis can effectively eliminate microorganisms on the surface of fruits and vegetables. Since the slightly acidic electrolyzed water has strong disinfection ability, little harm to the human body, and low manufacturing cost, it is widely used for disinfecting fruit and vegetable products.

[0003] Before fruits and vegetables are harvested and sold, it is necessary to rinse and disinfect the surfaces of fruit and vegetable products. Existing technologies usually directly use slightly acidic electrolyzed water to wash fruit and vegetable products. Currently, there is a lack of a device that can simultaneously produce slightly acidic water and clean fruit and vegetable products. Therefore, there is an urgent need for a fruit and vegetable disinfection treatment device for in-situ generation of slightly acidic electrolyzed water and a using method thereof to solve this problem. Summary of the Invention

[0004] The purpose of the present invention is to provide a fruit and vegetable disinfection treatment device for in-situ generation of slightly acidic electrolyzed water and a using method thereof to solve the above problems.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] A fruit and vegetable disinfection treatment device for in-situ generation of slightly acidic electrolyzed water, comprising:

[0007] A material box;

[0008] A drum conveyor, the feeding end of which is communicated with the discharging end of the material box, and a liftable baffle assembly is provided between the drum conveyor and the material box;

[0009] A conveyor belt, the feeding end of which is communicated with the discharging end of the drum conveyor;

[0010] A cleaning nozzle, the spraying end of which is located between the drum conveyor and the material box, and the cleaning nozzle is used for washing the sediment on the surface of fruits and vegetables;

[0011] A slightly acidic water-alkaline water spraying assembly, the spraying end of which is located directly above the drum conveyor and is used for disinfecting during the movement of fruits and vegetables;

[0012] A liquid recovery and filtration assembly, the liquid inlet end of which is located directly below the drum conveyor, and the liquid generated after spraying by the cleaning nozzle and the slightly acidic water-alkaline water spraying assembly enters the liquid recovery and filtration assembly for filtration;

[0013] The weakly acidic water preparation component has its liquid outlet end communicated with the weakly acidic water-alkaline water spraying component. The liquid inlet end of the weakly acidic water preparation component is communicated with the liquid outlet end of the liquid recovery and filtration component. The liquid recovery and filtration component filters and processes the recovered liquid and then passes it into the weakly acidic water preparation component for the preparation of weakly acidic water.

[0014] Optionally, the roller conveyor device is communicated with the material box through a feeding ramp. The material box is connected and arranged at the high end of the feeding ramp, and the roller conveyor device is connected and arranged at the low end of the feeding ramp. There is a gap between the roller conveyor device and the low end of the feeding ramp. The spraying end of the cleaning nozzle is located between the roller conveyor device and the low end of the feeding ramp. The baffle component is arranged above the feeding ramp through a lifting rod and can be lifted and lowered.

[0015] Optionally, the baffle component includes:

[0016] An inclined plate, one end of the inclined plate is fixedly connected with a first baffle, and the other end of the inclined plate is fixedly connected with a second baffle;

[0017] The second baffle is used to control the opening and closing of the discharge end of the material box;

[0018] The first baffle is used to control the opening and closing of the feeding end of the roller conveyor device.

[0019] The lifting rod makes the first baffle and the second baffle rise through the inclined plate, and the fruits and vegetables are moved out of the material box and roll along the feeding ramp. The lifting rod makes the first baffle and the second baffle descend through the inclined plate, so that the fruits and vegetables stay in the gap between the roller conveyor device and the feeding ramp and roll. At the same time, the spraying end of the cleaning nozzle rinses the fruits and vegetables. The first baffle and the second baffle are lifted again, and the fruits and vegetables in the gap move towards the roller conveyor device. The fruits and vegetables in the material box slide along the feeding ramp. After the first baffle and the second baffle descend, the fruits and vegetables on the feeding ramp enter the gap.

[0020] Optionally, the liquid recovery and filtration component includes:

[0021] An open water tank, located directly below the roller conveyor device;

[0022] A sedimentation area, a sediment filtration area, a water purification area, a liquid preparation area and a water storage area are successively connected and arranged along the flowing direction of the liquid in the open water tank;

[0023] The sedimentation area is located directly below the spraying end of the cleaning nozzle. After the spraying end of the cleaning nozzle rinses the fruits and vegetables, the muddy water drops into the sedimentation area;

[0024] A filtering part is arranged in the sediment filtration area;

[0025] The water purification area is provided with an RO membrane filter and a first water pump. The liquid inlet end of the first water pump communicates with the water purification area. The liquid outlet end of the first water pump communicates with the liquid inlet end of the RO membrane filter. The purified water outlet of the RO membrane filter communicates with the liquid preparation area. The waste water outlet of the RO membrane filter generates waste water for cooling the micro-acid water preparation component.

[0026] The liquid preparation area is provided with a concentration sensor and a stirring part.

[0027] The stirring part is a stirring shaft which is rotatably arranged on the inner wall of the liquid preparation area.

[0028] The water storage area is provided with a second water pump. The liquid inlet end of the second water pump communicates with the water storage area. The liquid outlet end of the second water pump communicates with the micro-acid water preparation component.

[0029] Optionally, between the sedimentation area and the sediment filtration area, and between the sediment filtration area and the water purification area, they are separated by overflow baffles. The liquid in the sedimentation area / the sediment filtration area enters the sediment filtration area / the water purification area after overflowing the top of the overflow baffle.

[0030] The water purification area and the liquid preparation area are separated by a baffle.

[0031] The liquid preparation area and the water storage area are separated by another overflow baffle. The liquid in the liquid preparation area enters the water storage area after overflowing the top of the overflow baffle.

[0032] Optionally, the filtering part includes a filter element which is installed in the sediment filtration area and is communicated with the sediment filtration area. The top of the filter element is fixedly connected with a T-shaped pressing plate. A protrusion is provided in the middle of the T-shaped pressing plate. The top surface of the protrusion in the middle of the T-shaped pressing plate is coplanar with the top surface of the open water tank.

[0033] Optionally, the micro-acid water preparation component includes:

[0034] A water storage tank, the liquid inlet end of which communicates with the liquid outlet end of the second water pump. The water storage tank is fixed above the roller conveying device through a cross beam.

[0035] An electrolytic cell assembly, the liquid inlet end of which communicates with the liquid outlet end of the water storage tank. The liquid outlet end of the electrolytic cell assembly communicates with the liquid inlet end of the micro-acid water - alkaline water spraying component.

[0036] Optionally, the electrolytic cell assembly includes:

[0037] Electrolytic cell, a diaphragm is fixedly connected in the middle of the electrolytic cell, the diaphragm divides the electrolytic cell into an acidic water generation area and an alkaline water generation area, electrodes are inserted in both the acidic water generation area and the alkaline water generation area, the electrode in the acidic water generation area is electrically connected to the anode of the power supply, the electrode in the alkaline water generation area is electrically connected to the cathode of the power supply, and both the acidic water generation area and the alkaline water generation area are communicated with the liquid outlet end of the water storage tank; the liquid outlet end of the acidic water generation area is communicated with the acid liquid inlet of the micro-acidic water-alkaline water spraying assembly, and the liquid outlet end of the alkaline water generation area is communicated with the alkaline liquid inlet of the micro-acidic water-alkaline water spraying assembly;

[0038] Cooling box, wrapped outside the electrolytic cell, the cooling box is arranged for heat exchange with the electrolytic cell, the cooling box is communicated with the waste water outlet of the RO membrane filter, and the liquid outlet end of the cooling box is connected to the liquid inlet end of the waste water recovery box through a water pump three.

[0039] Optionally, the micro-acidic water-alkaline water spraying assembly includes:

[0040] Acid liquid spray head, communicated with the acidic water generation area through a water pump four;

[0041] Alkaline liquid spray head, communicated with the alkaline water generation area through a water pump five;

[0042] The alkaline liquid spray head is located on the side close to the feeding ramp.

[0043] A usage method of a fruit and vegetable disinfection treatment device, using the above-mentioned fruit and vegetable disinfection treatment device for in-situ generation of slightly acidic electrolyzed water, including the following steps:

[0044] Put the fruits and vegetables into the material box, and start the roller conveying device, the conveyor belt and the micro-acidic water preparation assembly;

[0045] The fruits and vegetables move sequentially along the directions of the material box, the roller conveying device and the conveyor belt. After the dust on the surface of the fruits and vegetables is washed off by the cleaning spray head, the micro-acidic water-alkaline water spraying assembly sprays alkaline water and then acidic water on the surface of the fruits and vegetables. The alkaline water is used to remove the pesticide residues on the surface of the fruits and vegetables, and the acidic water is used to neutralize the alkaline water on the surface of the fruits and vegetables to form slightly acidic water for disinfection and sterilization of the surface of the fruits and vegetables.

[0046] Compared with the prior art, the present invention has the following advantages and technical effects:

[0047] During use, put fruits and vegetables into the material box, and start the roller conveying device, conveyor belt and weak acid water preparation component; the fruits and vegetables move sequentially along the directions of the material box, roller conveying device and conveyor belt. After the dust on the surface of the fruits and vegetables is washed off by the cleaning nozzles, the weak acid water-alkali water spraying component sprays alkali water and acid water on the surface of the fruits and vegetables successively. The alkali water is used to remove the pesticide residues on the surface of the fruits and vegetables, and the acid water is used to neutralize with the alkali water on the surface of the fruits and vegetables to form weak acid water for disinfecting and sterilizing the surface of the fruits and vegetables. This device can use the prepared saturated sodium chloride solution with a certain concentration for both electrolysis and cleaning the dust on the surface of the fruits and vegetables. The generated wastewater can be recycled after being treated by the liquid recovery and filtration component. The alkali water generated by electrolysis can clean and decompose the pesticide residues on the surface of the fruits and vegetables. At the same time, the weak acid water formed by the subsequent neutralization of the sprayed acid water and alkali water can effectively kill the germs on the surface of the fruits and vegetables, achieving a good effect on disinfecting and preserving the fruits and vegetables. Brief Description of the Drawings

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings:

[0049] Figure 1 It is a schematic structural diagram of the present invention;

[0050] Figure 2 It is a schematic structural diagram of the liquid recovery and filtration component of the present invention;

[0051] Figure 3 It is a schematic structural diagram of the electrolytic cell component of the present invention;

[0052] Figure 4 It is a schematic structural diagram of the baffle component of the present invention;

[0053] Figure 5 It is a schematic structural diagram of the T-shaped pressing plate of the present invention;

[0054] Among them, 1. material box; 2. feeding ramp; 3. cross beam; 4. lifting rod; 5. roller conveying device; 6. cleaning nozzle; 7. liquid recovery and filtration component; 8. conveyor belt; 9. water storage tank; 10. electrolytic cell component; 11. lye nozzle; 12. acid solution nozzle; 13. waste water recovery tank; 14. material blocking component; 701. open water tank; 702. sedimentation area; 703. overflow baffle; 704. filter element; 705. T-shaped pressing plate; 706. baffle; 707. RO membrane filter; 708. water pump one; 709. stirring shaft; 710. concentration sensor; 711. water pump two; 712. sediment filtration area; 713. water purification area; 714. liquid preparation area; 715. water storage area; 1001. electrolytic cell; 1002. diaphragm; 1003. power supply; 1004. electrode; 1005. water pump three; 1006. water pump four; 1007. water pump five; 1008. cooling box; 1401. inclined plate; 1402. baffle one; 1403. baffle two. Detailed implementation manners

[0055] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0056] To make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation manners.

[0057] Referring to Figures 1 to 5 , the present invention discloses a fruit and vegetable disinfection treatment device for in-situ generating slightly acidic electrolyzed water, including:

[0058] Material box 1;

[0059] Roller conveying device 5, the feeding end is communicated with the discharging end of the material box 1, and a liftable material blocking component 14 is provided between the roller conveying device 5 and the material box 1;

[0060] Conveyor belt 8, the feeding end is communicated with the discharging end of the roller conveying device 5;

[0061] Cleaning nozzle 6, the spraying end is located between the roller conveying device 5 and the material box 1, and the cleaning nozzle 6 is used for cleaning the sediment on the surface of fruits and vegetables;

[0062] Slightly acidic water-lye spraying component, the spraying end is located directly above the roller conveying device 5 and is used for disinfecting during the movement of fruits and vegetables;

[0063] The liquid recovery and filtration component 7 has an inlet end directly below the roller conveyor device 5. The liquid generated after spraying by the cleaning nozzle 6 and the micro-acid water-alkali water spraying component enters the liquid recovery and filtration component 7 for filtration.

[0064] The micro-acid water preparation component has an outlet end connected to the micro-acid water-alkali water spraying component, and an inlet end of the micro-acid water preparation component is connected to the outlet end of the liquid recovery and filtration component 7. The liquid recovery and filtration component 7 filters and processes the recovered liquid and then feeds it into the micro-acid water preparation component for micro-acid water preparation.

[0065] During use, fruits and vegetables are placed in the material box 1, and the roller conveyor device 5, the conveyor belt 8, and the micro-acid water preparation component are started. The fruits and vegetables move sequentially along the directions of the material box 1, the roller conveyor device 5, and the conveyor belt 8. After the surface dust of the fruits and vegetables is washed off by the cleaning nozzle 6, the micro-acid water-alkali water spraying component sprays alkali water and then acid water on the surface of the fruits and vegetables. The alkali water is used to remove pesticide residues on the surface of the fruits and vegetables, and the acid water is used to neutralize the alkali water on the surface of the fruits and vegetables to form micro-acid water for disinfecting and sterilizing the surface of the fruits and vegetables. This device can use the configured saturated sodium chloride solution with a certain concentration for both electrolysis and cleaning the surface dust of fruits and vegetables. The generated wastewater can be recycled after being treated by the liquid recovery and filtration component 7. The alkali water generated by electrolysis can clean and decompose the pesticide residues on the surface of the fruits and vegetables. At the same time, the micro-acid water formed by the subsequent neutralization of the sprayed acid water and the alkali water can effectively kill the germs on the surface of the fruits and vegetables, achieving a good effect on disinfecting and preserving the fruits and vegetables.

[0066] The cleaning nozzle 6 is connected to the municipal water supply system, which can not only clean the surface of the fruits and vegetables but also supply water to the whole device.

[0067] As an alternative implementation, the roller conveyor device 5 is connected to the material box 1 through a feeding ramp 2. The material box 1 is connected and arranged at the high end of the feeding ramp 2, and the roller conveyor device 5 is connected and arranged at the low end of the feeding ramp 2. There is a gap between the roller conveyor device 5 and the low end of the feeding ramp 2. The spraying end of the cleaning nozzle 6 is located between the roller conveyor device 5 and the low end of the feeding ramp 2. The baffle component 14 is arranged above the feeding ramp 2 through a lifting rod 4 for lifting.

[0068] As an alternative implementation, the baffle component 14 includes:

[0069] An inclined plate 1401, one end of the inclined plate 1401 is fixedly connected with a first baffle 1402, and the other end of the inclined plate 1401 is fixedly connected with a second baffle 1403;

[0070] The second baffle 1403 is used to control the opening and closing of the discharge end of the material box 1;

[0071] The first baffle 1402 is used to control the opening and closing of the feeding end of the roller conveyor device 5.

[0072] The lifting rod 4 causes the first baffle 1402 and the second baffle 1403 to rise through the inclined plate 1401, and the fruits and vegetables are moved out of the material box 1 and roll along the feeding ramp 2. The lifting rod 4 causes the first baffle 1402 and the second baffle 1403 to descend through the inclined plate 1401, so that the fruits and vegetables stay in the gap between the roller conveying device 5 and the feeding ramp 2 and roll. At the same time, the spraying end of the cleaning nozzle 6 flushes the fruits and vegetables. The first baffle 1402 and the second baffle 1403 are lifted again, and the fruits and vegetables in the gap move towards the roller conveying device 5. The fruits and vegetables in the material box 1 slide along the feeding ramp 2. After the first baffle 1402 and the second baffle 1403 descend, the fruits and vegetables on the feeding ramp 2 enter the gap.

[0073] The roller conveying device 5 is a prior art. The roller conveying device 5 is composed of a number of rollers arranged side by side. During the reciprocating lifting and lowering of the first baffle 1402 and the second baffle 1403, the discharge end of the material box 1 is intermittently opened. When the discharge end of the material box 1 is closed, the materials rolled out of the material box 1 roll along the feeding ramp 2 and are blocked at the feeding end of the roller conveying device 5. The rotation of the rollers at the feeding end of the roller conveying device 5 will drive the fruits and vegetables to roll under the action of friction. At this time, the cleaning nozzle 6 can clean the surface of the rolling fruits and vegetables, and the sewage will fall into the liquid recovery and filtration component 7.

[0074] As the core component of modern industrial automation and logistics systems, the structural design of roller transmission equipment integrates the innovative achievements of mechanical engineering and materials science. From the basic composition, such equipment mainly consists of four major parts: roller components, drive modules, support frameworks, and control systems. As the core carrier, rollers can be divided into two categories according to application scenarios: non-powered rollers rely on gravity inclination or manual push to achieve material transmission, which are commonly used in light-duty operation scenarios such as fruit and vegetable sorting. Their structures are made of food-grade stainless steel or rubber-coated materials, and the surfaces are treated with blunt rounding to avoid damaging the skin of fruits and vegetables; powered rollers are driven by motors in cooperation with speed reducers, and the transmission methods include gear chains, synchronous belts, or friction drives. For example, carbon steel rollers with a diameter of 89 mm are often used to carry pallets in heavy-duty logistics scenarios. In the drive system, the accumulation roller adopts a movable gear connection design. When fruits and vegetables need to be temporarily stored and sorted, the sprocket continues to rotate while the roller stops rotating to form a buffer zone. This dynamic storage function effectively avoids material extrusion damage. The support framework mostly uses modular aluminum profiles, which are convenient for combining into straight, curved, or spiral conveying lines. Some high-end equipment is also equipped with shock-absorbing devices and temperature control systems to ensure the quality stability of temperature-sensitive fruits and vegetables such as bananas during transportation.

[0075] At the working principle level, the drum conveyor realizes the efficient flow of materials through friction mechanics and intelligent control. In power equipment, the torque output by the motor is transmitted to the drum through a speed reducer, and the frictional force generated at the contact surface between the fruits and vegetables and the drum pushes the materials to move. The friction coefficient is adjusted according to the characteristics of the conveyed objects. For example, using a rubber-coated drum for citrus fruits can enhance the grasping force.

[0076] For the fruit and vegetable conveying scenario in the present invention, it is preferably a special model that also meets the hygiene standards. In this embodiment, it is preferably the Interroll EC5000 series of DC-driven drums with a modular design, equipped with food-grade stainless steel drums and 55dB low-noise motors, supporting the zero-pressure accumulation function, and is particularly suitable for the refined sorting of delicate fruits such as strawberries. The Van der Graaf TM series of hygienic electric drums have passed the IP69K certification, and the all-stainless steel structure can withstand high-pressure flushing of 3000psi.

[0077] As an alternative implementation, the liquid recovery and filtration assembly 7 includes:

[0078] An open water tank 701, located directly below the drum conveyor 5;

[0079] A sedimentation area 702, a sediment filtration area 712, a water purification area 713, a liquid preparation area 714, and a water storage area 715 are sequentially connected in the direction of the liquid flow in the open water tank 701;

[0080] The sedimentation area 702 is located directly below the spraying end of the cleaning nozzle 6. The muddy water generated after the cleaning nozzle 6 sprays and washes the fruits and vegetables falls into the sedimentation area 702;

[0081] A filtering part is provided in the sediment filtration area 712;

[0082] An RO membrane filter 707 and a water pump 708 are provided in the water purification area 713. The liquid inlet end of the water pump 708 is connected to the water purification area 713, the liquid outlet end of the water pump 708 is connected to the liquid inlet end of the RO membrane filter 707, the purified water outlet of the RO membrane filter 707 is connected to the liquid preparation area 714, and the waste water outlet of the RO membrane filter 707 generates waste water for cooling the micro-acid water preparation component;

[0083] A concentration sensor 710 and a stirring part are provided in the liquid preparation area 714;

[0084] The stirring part is a stirring shaft 709, and the stirring shaft 709 is rotatably arranged on the inner wall of the liquid preparation area 714;

[0085] A water pump 711 is provided in the water storage area 715. The liquid inlet end of the water pump 711 is connected to the water storage area 715, and the liquid outlet end of the water pump 711 is connected to the micro-acid water preparation component.

[0086] As an alternative implementation, between the sedimentation area 702 and the sediment filtration area 712, and between the sediment filtration area 712 and the water purification area 713, they are separated by an overflow baffle 703. The liquid in the sedimentation area 702 / sediment filtration area 712 overflows the top of the overflow baffle 703 and then enters the sediment filtration area 712 / water purification area 713;

[0087] Between the water purification area 713 and the liquid preparation area 714, they are separated by a baffle 706;

[0088] Between the liquid preparation area 714 and the water storage area 715, they are separated by another overflow baffle 703. The liquid in the liquid preparation area 714 overflows the top of the overflow baffle 703 and then enters the water storage area 715.

[0089] As an alternative implementation, the filtration part includes a filter element 704. The filter element 704 is installed in the sediment filtration area 712 and is communicated with the sediment filtration area 712. A T-shaped pressing plate 705 is fixedly connected to the top of the filter element 704. There is a protrusion in the middle of the T-shaped pressing plate 705, and the top surface of the protrusion in the middle of the T-shaped pressing plate 705 is coplanar with the top surface of the open water tank 701.

[0090] During use, the sewage drops into the sedimentation area 702 for sedimentation. After the water level rises, it overflows from the top of the overflow baffle 703 and enters the sediment filtration area 712. Since the top surface of the protrusion in the middle of the T-shaped pressing plate 705 is coplanar with the top surface of the open water tank 701, the sewage containing sediment cannot directly flow into the water purification area 713. Instead, it passes through the filter element 704 and then enters the water purification area 713. At the same time, the residual liquid after the alkaline water and acidic water wash the fruits and vegetables drops into the sediment filtration area 712 and the water purification area 713 through the gap between the rollers of the roller conveying device 5. Since this part of the water does not contain sediment, it does not need to pass through the filter element 704. This part of the water is sucked into the RO membrane filter 707 by the water pump 708. The RO membrane filter 707 can filter the water in the water purification area 713 to produce purified water and waste water. The purified water enters the liquid preparation area 714. The staff appropriately adds sodium chloride particles according to the concentration data fed back by the concentration sensor 710 and completes the stirring under the action of the stirring shaft 709. Subsequently, this part of the saturated sodium chloride solution enters the water storage area 715 and is sucked by the water pump 711 and enters the micro-acid water preparation component.

[0091] As an alternative implementation, the micro-acid water preparation component includes:

[0092] A water storage tank 9, the liquid inlet end of which is communicated with the liquid outlet end of the water pump 711. The water storage tank 9 is fixed above the roller conveying device 5 through a cross beam 3;

[0093] An electrolytic cell assembly 10, the liquid inlet end of which is communicated with the liquid outlet end of the water storage tank 9. The liquid outlet end of the electrolytic cell assembly 10 is communicated with the liquid inlet end of the micro-acid water-alkaline water spraying component.

[0094] As an alternative embodiment, the electrolytic cell assembly 10 includes:

[0095] An electrolytic cell 1001, in which a diaphragm 1002 is fixedly connected to the middle. The diaphragm 1002 divides the electrolytic cell 1001 into an acidic water production area and an alkaline water production area. Electrodes 1004 are inserted into both the acidic water production area and the alkaline water production area. The electrode 1004 in the acidic water production area is electrically connected to the anode of the power supply 1003, and the electrode 1004 in the alkaline water production area is electrically connected to the cathode of the power supply 1003. Both the acidic water production area and the alkaline water production area are communicated with the liquid outlet end of the water storage tank 9; the liquid outlet end of the acidic water production area is communicated with the acidic liquid inlet of the micro-acidic water-alkaline water spraying assembly, and the liquid outlet end of the alkaline water production area is communicated with the alkaline liquid inlet of the micro-acidic water-alkaline water spraying assembly;

[0096] A cooling box 1008, which is wrapped outside the electrolytic cell 1001. The cooling box 1008 is arranged for heat exchange with the electrolytic cell 1001. The cooling box 1008 is communicated with the waste water outlet of the RO membrane filter 707. The liquid outlet end of the cooling box 1008 is communicated with the liquid inlet end of the waste water recovery tank 13 through a water pump three 1005.

[0097] As an alternative embodiment, the micro-acidic water-alkaline water spraying assembly includes:

[0098] An acidic liquid nozzle 12, which is communicated with the acidic water production area through a water pump four 1006;

[0099] An alkaline liquid nozzle 11, which is communicated with the alkaline water production area through a water pump five 1007;

[0100] The alkaline liquid nozzle 11 is located close to one side of the feeding ramp 2.

[0101] The saturated sodium chloride solution enters the water storage tank 9 for storage, and then is simultaneously pumped from the water storage tank 9 by a pump body into the acidic water production area and the alkaline water production area of the electrolytic cell assembly 10. The acidic water production area generates an acidic aqueous solution with low concentration of available chlorine and high oxidation-reduction potential through the electrode 1004 electrically connected to the anode, and the alkaline water production area generates an alkaline aqueous solution through the electrode 1004 electrically connected to the cathode. The alkaline aqueous solution is sprayed on the surface of fruits and vegetables through the alkaline liquid nozzle 11, and the acidic aqueous solution is sprayed on the surface of fruits and vegetables through the acidic liquid nozzle 12. The alkaline aqueous solution sprayed on the surface of fruits and vegetables first can effectively remove the agricultural residues on the surface of fruits and vegetables, and then the acidic aqueous solution sprayed on the surface of fruits and vegetables neutralizes with the alkaline aqueous solution to form a micro-acidic liquid, which sterilizes and preserves the freshness of the surface of fruits and vegetables.

[0102] Since heat is generated in the acidic water generation area and the alkaline water generation area during electrolysis, and the wastewater generated by the RO membrane filter 707 cannot be directly discharged due to containing various harmful substances, the wastewater is passed into the cooling tank 1008 to take away the heat generated by the electrolysis of the electrolytic cell 1001 before entering the wastewater recovery tank 13, maintaining the temperature of the electrolytic cell 1001, and at the same time being collected in the wastewater recovery tank 13 for convenient centralized recovery and treatment.

[0103] A method for using a fruit and vegetable disinfection treatment device, which uses the above-mentioned fruit and vegetable disinfection treatment device for in-situ generation of slightly acidic electrolyzed water, and includes the following steps:

[0104] Put the fruits and vegetables into the material box 1, and start the drum conveying device 5, the conveyor belt 8 and the slightly acidic water preparation component;

[0105] The fruits and vegetables move sequentially along the directions of the material box 1, the drum conveying device 5 and the conveyor belt 8. After the dust on the surface of the fruits and vegetables is washed off by the cleaning nozzle 6, the slightly acidic water-alkaline water spraying component sprays alkaline water and acidic water on the surface of the fruits and vegetables successively. The alkaline water is used to remove the pesticide residues on the surface of the fruits and vegetables, and the acidic water is used to neutralize the alkaline water on the surface of the fruits and vegetables to form slightly acidic water for disinfecting and sterilizing the surface of the fruits and vegetables.

[0106] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0107] The above-described embodiments are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A fruit and vegetable disinfection treatment device for in-situ generating slightly acidic electrolyzed water, characterized in that, Including: Material box (1); Roller conveyor device (5), the feeding end of which is communicated with the discharging end of the material box (1), and a liftable baffle assembly (14) is arranged between the roller conveyor device (5) and the material box (1); Conveyor belt (8), the feeding end of which is communicated with the discharging end of the roller conveyor device (5); Cleaning nozzle (6), the spraying end of which is located between the roller conveyor device (5) and the material box (1), and the cleaning nozzle (6) is used for washing the sediment on the surface of fruits and vegetables; Slightly acidic water-alkaline water spraying assembly, the spraying end of which is located directly above the roller conveyor device (5) and is used for disinfecting during the movement of fruits and vegetables; Liquid recovery and filtration assembly (7), the liquid inlet end of which is located directly below the roller conveyor device (5), and the liquid generated after the cleaning nozzle (6) and the slightly acidic water-alkaline water spraying assembly spray enters the liquid recovery and filtration assembly (7) for filtration; Slightly acidic water preparation assembly, the liquid outlet end of which is communicated with the slightly acidic water-alkaline water spraying assembly, and the liquid inlet end of the slightly acidic water preparation assembly is communicated with the liquid outlet end of the liquid recovery and filtration assembly (7). The liquid recovery and filtration assembly (7) filters and processes the recovered liquid and then passes it into the slightly acidic water preparation assembly for preparing slightly acidic water.

2. The fruit and vegetable disinfection treatment device for in-situ generating slightly acidic electrolyzed water according to claim 1, characterized in that, The roller conveyor device (5) is communicated with the material box (1) through a feeding ramp (2). The material box (1) is connected and arranged at the high end of the feeding ramp (2), and the roller conveyor device (5) is connected and arranged at the low end of the feeding ramp (2). There is a gap between the roller conveyor device (5) and the low end of the feeding ramp (2). The spraying end of the cleaning nozzle (6) is located between the roller conveyor device (5) and the low end of the feeding ramp (2), and the baffle assembly (14) is lifted and arranged directly above the feeding ramp (2) through a lifting rod (4).

3. The fruit and vegetable disinfection treatment device for in-situ generating slightly acidic electrolyzed water according to claim 2, characterized in that, The baffle assembly (14) includes: Inclined plate (1401), one end of the inclined plate (1401) is fixedly connected with a first baffle (1402), and the other end of the inclined plate (1401) is fixedly connected with a second baffle (1403); The second baffle (1403) is used to control the opening and closing of the discharging end of the material box (1); The first baffle (1402) is used to control the opening and closing of the feeding end of the roller conveyor device (5).

4. The fruit and vegetable disinfection treatment device for in-situ generating slightly acidic electrolyzed water according to claim 2, characterized in that, The liquid recovery and filtration assembly (7) includes: Open water tank (701), located directly below the roller conveyor device (5); A precipitation area (702), a sediment filtration area (712), a water purification area (713), a liquid preparation area (714) and a water storage area (715) are sequentially connected and arranged along the flowing direction of the liquid in the open water tank (701); The precipitation area (702) is located directly below the spraying end of the cleaning nozzle (6), and the muddy water generated after the spraying end of the cleaning nozzle (6) flushes the fruits and vegetables drops into the precipitation area (702); A filtering part is arranged in the sediment filtration area (712); The water purification area (713) is provided with an RO membrane filter (707) and a first water pump (708). The liquid inlet end of the first water pump (708) is communicated with the water purification area (713). The liquid outlet end of the first water pump (708) is communicated with the liquid inlet end of the RO membrane filter (707). The purified water outlet of the RO membrane filter (707) is communicated with the liquid preparation area (714). The waste water outlet of the RO membrane filter (707) generates waste water for cooling the micro-acid water preparation assembly; The liquid preparation area (714) is provided with a concentration sensor (710) and a stirring part; The stirring part is a stirring shaft (709), and the stirring shaft (709) is rotatably arranged on the inner wall of the liquid preparation area (714); The water storage area (715) is provided with a second water pump (711). The liquid inlet end of the second water pump (711) is communicated with the water storage area (715). The liquid outlet end of the second water pump (711) is communicated with the micro-acid water preparation assembly.

5. The fruit and vegetable disinfection treatment device for in-situ generating slightly acidic electrolyzed water according to claim 4, wherein: Both between the sedimentation area (702) and the sediment filtration area (712), and between the sediment filtration area (712) and the water purification area (713) are separated by an overflow baffle (703). The liquid in the sedimentation area (702) / the sediment filtration area (712) enters the sediment filtration area (712) / the water purification area (713) after overflowing the top of the overflow baffle (703); The water purification area (713) and the liquid preparation area (714) are separated by a baffle (706); The liquid preparation area (714) and the water storage area (715) are separated by another overflow baffle (703). The liquid in the liquid preparation area (714) enters the water storage area (715) after overflowing the top of the overflow baffle (703).

6. The fruit and vegetable disinfection treatment device for in-situ generating slightly acidic electrolyzed water according to claim 4, wherein: The filtering part includes a filter element (704). The filter element (704) is installed in the sediment filtration area (712). The filter element (704) is communicated with the sediment filtration area (712). A T-shaped pressing plate (705) is fixedly connected to the top of the filter element (704). A protrusion is provided in the middle of the T-shaped pressing plate (705). The top surface of the protrusion in the middle of the T-shaped pressing plate (705) is coplanar with the top surface of the open water tank (701).

7. The fruit and vegetable disinfection treatment device for in-situ generation of slightly acidic electrolyzed water according to claim 4, characterized in that, The micro-acid water preparation assembly includes: A storage water tank (9) with its liquid inlet end communicated with the liquid outlet end of the second water pump (711). The storage water tank (9) is fixed above the roller conveying device (5) through a cross beam (3); An electrolytic cell assembly (10) with its liquid inlet end communicated with the liquid outlet end of the storage water tank (9). The liquid outlet end of the electrolytic cell assembly (10) is communicated with the liquid inlet end of the micro-acid water-alkali water spraying assembly.

8. The fruit and vegetable disinfection treatment device for in-situ generating slightly acidic electrolyzed water according to claim 7, characterized in that, The electrolytic cell assembly (10) includes: Electrolytic cell (1001), a diaphragm (1002) is fixedly connected to the middle of the electrolytic cell (1001), the diaphragm (1002) divides the electrolytic cell (1001) into an acidic water generation area and an alkaline water generation area, electrodes (1004) are inserted into both the acidic water generation area and the alkaline water generation area, the electrode (1004) in the acidic water generation area is electrically connected to the anode of the power supply (1003), the electrode (1004) in the alkaline water generation area is electrically connected to the cathode of the power supply (1003), and both the acidic water generation area and the alkaline water generation area are communicated with the liquid outlet end of the water storage tank (9); the liquid outlet end of the acidic water generation area is communicated with the acid liquid inlet of the micro-acidic water-alkaline water spraying assembly, and the liquid outlet end of the alkaline water generation area is communicated with the alkaline liquid inlet of the micro-acidic water-alkaline water spraying assembly; Cooling box (1008), which is wrapped outside the electrolytic cell (1001), the cooling box (1008) is arranged for heat exchange with the electrolytic cell (1001), the cooling box (1008) is communicated with the wastewater outlet of the RO membrane filter (707), and the liquid outlet end of the cooling box (1008) is communicated with the liquid inlet end of the wastewater recovery tank (13) through a water pump three (1005).

9. The fruit and vegetable disinfection treatment device for in-situ generating slightly acidic electrolyzed water according to claim 8, characterized in that, The micro-acidic water-alkaline water spraying assembly includes: Acid liquid spray head (12), which is communicated with the acidic water generation area through a water pump four (1006); Alkaline liquid spray head (11), which is communicated with the alkaline water generation area through a water pump five (1007); The alkaline liquid spray head (11) is located on one side close to the feeding ramp (2).

10. A method for using a fruit and vegetable disinfection treatment device, which uses the fruit and vegetable disinfection treatment device for in-situ generation of slightly acidic electrolyzed water according to any one of claims 1-9, characterized in that, It includes the following steps: Put fruits and vegetables into the material box (1), and start the roller conveying device (5), the conveyor belt (8) and the micro-acidic water preparation assembly; The fruits and vegetables move sequentially along the directions of the material box (1), the roller conveying device (5) and the conveyor belt (8). After the dust on the surface of the fruits and vegetables is washed clean by the cleaning spray head (6), the micro-acidic water-alkaline water spraying assembly sprays alkaline water and then acid water on the surface of the fruits and vegetables successively. The alkaline water is used to remove the pesticide residues on the surface of the fruits and vegetables, and the acid water is used to neutralize the alkaline water on the surface of the fruits and vegetables to form micro-acidic water for disinfecting and sterilizing the surface of the fruits and vegetables.

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