A fresh tea leaf ozone cleaning machine for continuous production line

Abstract

The present invention relates to an ozone cleaning machine for fresh tea leaves used in a continuous production line. It includes a water tank body arranged in a supporting frame, a mesh chain conveyor belt arranged in the water tank body and arranged along the material feeding direction, a spray and flushing device located above the water tank body, an ozone aeration pipeline arranged in the water tank body, and an auxiliary fallen leaf blowing pipe arranged near the end of the mesh chain conveyor belt. The spray and flushing device includes a pre-spray and flushing pipeline, an ozone flushing pipeline and a final flushing pipeline arranged in sequence. The ozone aeration pipeline is connected to an ozone generator. The mesh chain conveyor belt includes an input section, a pre-cleaning section, an ozone cleaning section, a post-cleaning section and an output section. It can be seen from the above technical scheme that the present invention makes full use of the dual effects of water flushing and ozone cleaning to effectively treat dust, agricultural residues and other pollutants on the surface of fresh tea leaves. It has the advantages of compact overall structure, energy saving and environmental protection, and high cleaning efficiency, and can be applied to the continuity requirements of tea processing.

Description

Technical Field

[0001] The invention relates to the technical field of tea cleaning, and in particular to a fresh tea leaf ozone cleaning machine used in a continuous production line. Background Art

[0002] Tea has many functions and effects. More and more people like to drink tea, and the output of tea is also increasing year by year. Tea leaves are inevitably contaminated with dust during picking and transportation, and in the process of growing tea leaves, pesticides are usually used to prevent pests, and a small amount of agricultural residues will remain on the leaves of fresh tea leaves. Therefore, it is very important to clean and remove agricultural residues from fresh tea leaves after picking. Although some tea cleaning devices have appeared, such as the devices disclosed in CN104304523A, CN106623225A, CN107965989A, CN108940973A and other patents, these devices are mostly independent cleaning equipment, which have the disadvantages of weak systematicity, poor continuous working ability and low efficiency, and are difficult to be applied to efficient tea processing continuous production lines. In addition, the tea cleaning methods of the devices disclosed in patents such as CN107971315A, CN105875890A, and CN110052446A are relatively simple, and the effect of treating pesticide residues on the surface of fresh tea leaves is particularly poor. Summary of the invention

[0003] The object of the present invention is to provide a fresh tea leaf ozone cleaning machine for a continuous production line. The cleaning machine effectively treats dust, agricultural residues and other pollutants on the surface of fresh tea leaves through the dual effects of water flushing and ozone cleaning. It has high cleaning efficiency and is suitable for a continuous production line.

[0004] To achieve the above-mentioned purpose, the present invention adopts the following technical scheme: comprising a water tank body arranged in a supporting frame, a mesh chain conveyor belt arranged in the water tank body and arranged along the material feeding direction, a spraying and flushing device located above the water tank body, an ozone aeration pipeline arranged in the water tank body, and an auxiliary leaf blowing pipe arranged near the end of the mesh chain conveyor belt, the spraying and flushing device comprises a pre-spraying and washing pipeline, an ozone flushing pipeline and a final washing pipeline arranged in sequence along the material feeding direction, the ozone aeration pipeline is connected to an ozone generator, the mesh chain conveyor belt comprises an input section for feeding, a pre-washing section corresponding to the pre-spraying and washing pipeline, an ozone cleaning section corresponding to the ozone flushing pipeline and the ozone aeration pipeline, a post-cleaning section corresponding to the final washing pipeline, and an output section for discharging, the material enters from the input section, is preliminarily cleaned by the pre-spraying and washing pipeline in the pre-cleaning section, is deeply cleaned by the ozone flushing pipeline and the ozone aeration pipeline in the ozone cleaning section, is finally cleaned by the final washing pipeline in the post-cleaning section and is output from the output section.

[0005] The mesh chain conveyor belt is fixed between the first mounting plate and the second mounting plate, and the first mounting plate and the second mounting plate are arranged along the front-to-rear direction of the water tank body. The mesh chain conveyor belt includes a metal mesh conveyor belt, an active roller located in the output section, a driven roller located in the input section, a driving sprocket arranged at both ends of the roller shaft of the active roller, a driven sprocket arranged at both ends of the roller shaft of the driven roller, and two chains connecting the active sprocket and the driven sprocket. A support rod connected to the two chains and used to support the metal mesh conveyor belt is provided between the two chains, and both ends of the support rod are respectively penetrated through the chain link pin shaft holes of the corresponding chain through supporting short pins, and the active sprocket is driven by a motor arranged on the support frame.

[0006] The input section, pre-cleaning section, ozone cleaning section, post-cleaning section and output section are arranged in sequence, the input section and the output section are in the same horizontal plane, and the bottom of the board surface corresponding to the input section and the output section on the first mounting plate and the second mounting plate are built on the front and rear ends of the water tank body, the pre-cleaning section and the post-cleaning section are respectively consistent with the setting directions of the front side plate and the rear side plate of the water tank body, and the ozone cleaning section is located at the bottom of the water tank body and leaves a gap with the bottom of the water tank body.

[0007] The outer surface of the metal mesh conveyor belt is evenly distributed with multiple dividing fences perpendicular to the surface of the metal mesh conveyor belt, the direction in which the dividing fences are set coincides with the direction in which the active roller is set, and the cross-section of the dividing fences is triangular; the inner sides of the first mounting plate and the second mounting plate are respectively provided with baffles for accommodating sprockets and chains, the baffles are located on the outside of the edge of the upper surface of the metal mesh conveyor belt and avoid the metal mesh conveyor belt, the chain is respectively provided with guide plates at the connection of the input section, pre-cleaning section, ozone cleaning section, post-cleaning section and output section, and the guide plates are fixed on the first mounting plate and the second mounting plate.

[0008] The water tank body is an integral structure, and its cross-section is a trapezoid with a long upper side and a short lower side, including a front side plate, a rear side plate, a left side plate, a right side plate and a bottom plate that are connected to each other. The bottom plate is composed of an inclined plate at the front end and a horizontal plate at the rear end. The inclined plate is lower in front and higher in the back. A drainage hole is provided on the inclined plate, which is connected to a drain pipe at the bottom of the water tank body, and a drain valve is provided on the drain pipe; a flange welded to a support frame is provided at the notch of the water tank body along its circumference.

[0009] A filtering water tank connected to the inside of the water tank body is provided on the outer wall of the water tank body, the water outlet of the filtering water tank body is connected to the pre-spraying pipeline and the ozone flushing pipeline through a water pipe, the water pipe is provided with a circulating water pump, and a water outlet hole connecting the filtering water tank and the inside of the water tank body is provided on the tank wall of the water tank body, and a filter net is provided at the water outlet hole to form a plug-in fit with the filtering water tank.

[0010] The ozone generator is connected to the vortex air pump, and the ozone aeration pipeline is connected to the air outlet of the vortex air pump through an air pipe. The ozone aeration pipeline is located between the bottom plate of the water tank body and the mesh chain conveyor belt, and between the ozone flushing pipeline and the final flushing pipeline. The air pipe includes an M-type return pipeline, a first air pipe connecting the M-type return pipeline and the vortex air pump, and a second air pipe connecting the M-type return pipeline and the ozone aeration pipeline. An observation window is provided at the middle bend of the M-type return pipeline, and a drain hole is provided at the bottom end of the middle bend of the M-type return pipeline. A drain plug is provided at the drain hole. The air pipe, vortex air pump, and ozone generator are all located outside the water tank body and fixed on the support frame.

[0011] The ozone aeration pipeline is horizontally arranged as a whole on the horizontal plate surface of the bottom plate of the water tank body, and is composed of longitudinal tubes and transverse tubes that are crisscrossed and connected to each other. The setting direction of the transverse tube is consistent with the material feeding direction. A plurality of aeration holes are evenly distributed on the transverse tube. The air outlet direction of the aeration hole is perpendicular to the surface of the mesh chain conveyor belt. The longitudinal tube or the transverse tube is provided with an air inlet hole.

[0012] The pre-spray washing pipeline and the ozone washing pipeline are connected to the water source inside the water tank body through a water pipe, and the final washing pipeline is connected to the clean water source outside the water tank body. The pre-spray washing pipeline is arranged above the pre-washing section, including a first pipe body and a second pipe body arranged in parallel along the material feeding direction, and a plurality of fifth pipe bodies connecting the first pipe body and the second pipe body are arranged between the first pipe body and the second pipe body. The fifth pipe body is provided with a first nozzle, and the spraying direction of the first nozzle is perpendicular to the surface of the mesh chain conveyor belt located in the pre-washing section. The first nozzles on the adjacent two fifth pipe bodies are staggered; the ozone washing pipeline is arranged above the ozone cleaning section, and the overall position Above the inclined plate of the bottom plate of the water tank body, there are a third tube body and a fourth tube body arranged in parallel along the material feeding direction, wherein the third tube body is connected to the rear end of the first tube body, and the fourth tube body is connected to the rear end of the second tube body, and the front ends of the first tube body and the second tube body and the rear ends of the third tube body and the fourth tube body are all closed ends, and the third tube body is also provided with a water inlet connected to a water pipe, and a plurality of sixth tube bodies connecting the third tube body and the fourth tube body are provided between the third tube body and the fourth tube body, and the sixth tube body is provided with a second nozzle, and the second nozzle is perpendicular to the surface of the mesh chain conveyor belt located in the ozone cleaning section, and the second nozzles on two adjacent sixth tube bodies are staggered.

[0013] The auxiliary leaf blowing pipe is located inside the mesh chain conveyor belt, one end of which is closed, and the other end is bypassed by the air duct and the M-shaped return pipe. The auxiliary leaf blowing pipe is arranged parallel to the active roller of the mesh chain conveyor belt and is located on the front side of the active roller. A plurality of leaf jet holes are evenly distributed on the auxiliary leaf blowing pipe, and the air outlet direction of the leaf jet holes points to the lower right.

[0014] It can be seen from the above technical scheme that the present invention makes full use of the dual effects of water flushing and ozone cleaning to effectively treat dust, agricultural residues and other pollutants on the surface of fresh tea leaves. It has the advantages of compact overall structure, energy saving and environmental protection, high cleaning efficiency, and can be applied to the continuity requirements of tea processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The structure of the present invention is schematically shown in FIG. Figure 1 ;

[0016] Figure 2 The structure of the present invention is schematically shown in FIG. Figure 2 ;

[0017] Figure 3 It is a schematic diagram of the structure of the present invention after removing the metal mesh conveyor belt and the spraying and flushing device;

[0018] Figure 4 It is a front view of the water tank body of the present invention;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of the water tank body of the present invention;

[0020] Figure 6 It is a structural schematic diagram of the ozone aeration pipeline of the present invention;

[0021] Figure 7 It is a structural schematic diagram of the spray and shower device of the present invention;

[0022] Figure 8 It is a structural schematic diagram of the metal mesh conveyor belt of the present invention;

[0023] Fig. 9 It is a schematic diagram of the installation structure of the mesh chain conveyor belt of the present invention;

[0024] Fig.10 It is an installation diagram of the mesh chain conveyor belt and the second installation plate of the present invention.

[0025] Fig.11 It is a structural schematic diagram of the support frame of the present invention.

[0026] The symbols in the above drawings are:

[0027] Support frame 1, motor 11, support leg 12, connecting rod 13, water tank body 2, water pipe 20, circulating water pump 201, front side plate 21, rear side plate 22, left side plate 23, right side plate 24, bottom plate 25, inclined plate 251, horizontal plate 252, drainage hole 26, drain pipe 27, drain valve 271, flange 28, filter tank 29, filter screen 291, mesh chain conveyor belt 3, input section 3A, pre-cleaning section 3B, ozone cleaning section 3C, post-cleaning section 3D and output section 3E, baffle 30, first mounting plate 31, second mounting plate 32, metal mesh conveyor belt 33, partition fence 331, active roller 34, driven roller Roller 35, driving sprocket 36, driven sprocket 37, chain 38, guide plate 381, support rod 39, ozone aeration pipeline 4, ozone generator 41, vortex air pump 42, aeration hole 43, M-type return pipeline 44, first air pipe 45, second air pipe 46, observation window 441, drain hole 442, auxiliary fallen leaf blowing pipe 5, fallen leaf jet hole 51, air duct 52, pre-spraying pipeline 6, first tube body 61, second tube body 62, fifth tube body 63, first nozzle 64, ozone flushing pipeline 7, third tube body 71, fourth tube body 72, sixth tube body 73, second nozzle 74, final washing pipeline 8, third nozzle 81. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings:

[0029] like Figure 1 , Figure 2 The shown machine is a fresh tea leaf ozone cleaning machine for a continuous production line, comprising a water trough body 2 arranged in a supporting frame 1, a mesh chain conveyor belt 3 arranged in the water trough body 2 and along the material feeding direction, a spraying device located above the water trough body 2, an ozone aeration pipeline 4 arranged inside the water trough body, and an auxiliary fallen leaf blowing pipe 5 arranged near the end of the mesh chain conveyor belt 3.

[0030] Further, such as Figure 4 , Figure 5 , Fig.11 As shown, the water tank body 2 is an integral structure, and its cross section is a trapezoid with a long upper side and a short lower side, and includes a front side plate 21, a rear side plate 22, a left side plate 23, a right side plate 24 and a bottom plate 25 connected to each other. The bottom plate 25 is composed of an inclined plate 251 at the front end and a horizontal plate 252 at the rear end. The inclined plate 251 is low in front and high in the back. The inclined plate 251 is provided with a drainage hole 26, which is connected to a drain pipe 27 at the bottom of the water tank body 2, and a drain valve 271 is provided on the drain pipe 27; the notch of the water tank body 2 is provided with a flange 28 welded to the support frame 1 along its circumference. The support frame 1 includes a plurality of support legs 12 welded to the flange 28, and a connecting rod 13 is fixed between the support legs 12.

[0031] Furthermore, a filter water tank 29 connected to the inside of the water tank 2 is provided on the outer wall of the water tank body 2, and the water outlet of the filter water tank body 29 is connected to the pre-spraying pipeline 6 and the ozone flushing pipeline 7 through the water pipe 20, and a circulating water pump 201 is provided on the water pipe 20. A water outlet hole connecting the filter water tank 29 and the inside of the water tank body 2 is provided on the wall of the water tank body 2, and a filter net 291 is provided at the water outlet hole to form a plug-in fit with the filter water tank 29. The size of the filter net 291 should completely cover the water outlet hole, and a slot is provided on the water tank body 2, and the filter net 291 can be pulled up and down in the slot. The circulating water pump 201 transports the water in the water tank body 2 that has been filtered by the filter net 291 to the pre-spraying pipeline 6 and the ozone flushing pipeline 7 through the water pipe 20, and the water is sprayed out by the nozzles on the pre-spraying pipeline 6 and the ozone flushing pipeline 7, and the water flow after spraying enters the water tank body 2 again, which is equivalent to forming a circulating water circuit.

[0032] Further, such as Figure 7 As shown, the spray flushing device includes a pre-spray flushing pipeline 6, an ozone flushing pipeline 7 and a final flushing pipeline 8 arranged in sequence along the material feeding direction. The pre-spray flushing pipeline 6 and the ozone flushing pipeline 7 are connected to the water source inside the water tank body 2 through a water pipe 20, and the final flushing pipeline 8 is connected to the clean water source outside the water tank body 2.

[0033] The pre-spraying pipeline 6 is arranged above the pre-cleaning section 3B, and includes a first tube body 61 and a second tube body 62 arranged in parallel along the material feeding direction. A plurality of fifth tube bodies 63 are arranged between the first tube body 61 and the second tube body 62 to connect the two. A first nozzle 64 is arranged on the fifth tube body 63, and the spraying direction of the first nozzle 64 is perpendicular to the surface of the mesh chain conveyor belt 3 located in the pre-cleaning section 3B. The first nozzles 64 on two adjacent fifth tube bodies 63 are arranged alternately.

[0034] The ozone flushing pipeline 7 is arranged above the ozone cleaning section 3C, and is located as a whole above the inclined plate of the bottom plate of the water tank body 2, including a third tube body 71 and a fourth tube body 72 arranged in parallel along the material feeding direction, wherein the third tube body 71 is connected to the rear end of the first tube body 61, and the fourth tube body 72 is connected to the rear end of the second tube body 62, and the front ends of the first tube body 61 and the second tube body 62, and the rear ends of the third tube body 71 and the fourth tube body 72 are all closed ends, and the third tube body 71 is also provided with a water inlet connected to the water pipe 20, and a plurality of sixth tube bodies 73 connecting the third tube body 71 and the fourth tube body 72 are provided between the third tube body 71 and the fourth tube body 72, and the sixth tube body 73 is provided with a second nozzle 74, and the second nozzle 74 is perpendicular to the surface of the mesh chain conveyor belt 2 located in the ozone cleaning section 3C, and the second nozzles 74 on two adjacent sixth tube bodies 73 are arranged alternately;

[0035] The final washing pipeline 8 is arranged above the post-cleaning section 3D. Its structure is the same as the pre-spray washing pipeline 6 and the ozone flushing pipeline 7, which will not be repeated here. The final washing pipeline 8 is provided with a water inlet connected to an external water source. The third nozzle 81 on the final washing pipeline 8 is perpendicular to the surface of the mesh chain conveyor belt 2 located in the post-cleaning section 3D.

[0036] Further, such as Figure 6 As shown, the ozone aeration pipeline 4 is connected to the ozone generator 41. Specifically, the ozone generator 41 is connected to the vortex air pump 42. The ozone aeration pipeline 4 is connected to the air outlet of the vortex air pump 42 through an air pipe. The ozone aeration pipeline 4 is located between the bottom plate of the water tank body 2 and the mesh chain conveyor 3, and between the ozone flushing pipeline 7 and the final flushing pipeline 8. The air pipe includes an M-type return pipeline 44, a first air pipe 45 connecting the M-type return pipeline 44 and the vortex air pump 42, and a second air pipe 46 connecting the M-type return pipeline 44 and the ozone aeration pipeline 4. An observation window 441 is provided at the middle bend of the M-type return pipeline 44, and a drain hole 442 is provided at the bottom end of the middle bend of the M-type return pipeline 44. A drain plug is provided at the drain hole 442. The air pipe, the vortex air pump 42, and the ozone generator 41 are all located outside the water tank body 2 and fixed on the support frame 1.

[0037] Furthermore, the ozone aeration pipeline 4 is horizontally arranged as a whole on the horizontal plate surface of the bottom plate of the water tank body 2, and is composed of longitudinal pipes 47 and transverse pipes 48 that are crisscrossed and interconnected. The setting direction of the transverse pipe 48 is consistent with the material feeding direction. A plurality of aeration holes 43 are evenly distributed on the transverse pipe 48. The air outlet direction of the aeration hole 43 is perpendicular to the surface of the mesh chain conveyor belt 3. An air inlet hole is provided on the longitudinal pipe 47 or the transverse pipe 48.

[0038] In this embodiment, the ozone flushing pipeline 7 is arranged above the inclined plate of the bottom plate of the water tank body 2, and the ozone aeration pipeline 4 is arranged above the horizontal plate of the bottom plate of the water tank body 2. The ozone aeration pipeline 4 and the ozone flushing pipeline 7 correspond to the ozone cleaning section 3C of the mesh chain conveyor belt 3, that is, in the ozone cleaning section 3C, the ozone aeration pipeline 4 and the ozone flushing pipeline 7 work together at the same time, the ozone aeration pipeline 4 sprays ozone through the aeration hole 43, forms ozone bubbles in the water tank body 2, and causes the water flow in the water tank body 2 to roll, while the ozone flushing pipeline 7 sprays high-pressure water through the second nozzle 74 to form a water column for stirring, thereby sterilizing and cleaning the fresh tea leaves.

[0039] Further, such as Figure 3 , Figure 8 , Fig. 9 , Fig.10As shown, the mesh chain conveyor 3 includes an input section 3A for feeding, a pre-cleaning section 3B corresponding to the pre-spraying pipeline 6, an ozone cleaning section 3C corresponding to the ozone flushing pipeline 7 and the ozone aeration pipeline 4, a post-cleaning section 3D corresponding to the final cleaning pipeline 8, and an output section 3E for discharging. The material enters from the input section 3A, is preliminarily cleaned by the pre-spraying pipeline 6 in the pre-cleaning section 3B, is deeply cleaned by the ozone flushing pipeline 7 and the ozone aeration pipeline 4 in the ozone cleaning section 3C, is finally cleaned by the final cleaning pipeline 8 in the post-cleaning section 3D, and is output from the output section 3E.

[0040] The input section 3A, the pre-cleaning section 3B, the ozone cleaning section 3C, the post-cleaning section 3D and the output section 3E are arranged in sequence, the input section 3A and the output section 3E are in the same horizontal plane, and the bottom of the board surface corresponding to the input section 3A and the output section 3E on the first mounting plate 31 and the second mounting plate 32 are set at the front and rear ends of the water tank body 2, the pre-cleaning section 3B and the post-cleaning section 3D are respectively consistent with the setting directions of the front side plate and the rear side plate of the water tank body 3, the ozone cleaning section 3C is located at the bottom of the water tank body 2 and has a gap with the bottom of the water tank body 2, and the ozone cleaning section 3C is immersed in the water flow in the water tank body 2 as a whole. The input section 3A of the mesh chain conveyor belt 3 is arranged horizontally, and the end of the input section 3A is inclined to the lower right to form a pre-cleaning section 3B, and the end of the pre-cleaning section 3B is horizontally extended to the right to form an ozone cleaning section 3C, and the end of the ozone cleaning section 3C is inclined to the upper right to form a post-cleaning section 3D, and the end of the post-cleaning section 3D is horizontally extended to the right to form an output section 3E.

[0041] Specifically, the mesh chain conveyor belt 3 is fixed between the first mounting plate 31 and the second mounting plate 32, and the first mounting plate 31 and the second mounting plate 32 are arranged along the front and rear direction of the water tank body 2. The mesh chain conveyor belt 3 includes a metal mesh conveyor belt 33, an active roller 34 located in the output section, a driven roller 35 located in the input section, a driving sprocket 36 arranged at both ends of the roller shaft of the active roller, a driven sprocket 37 arranged at both ends of the roller shaft of the driven roller, and two chains 38 connecting the active sprocket 36 and the driven sprocket 37. A support rod 39 connected to the two chains 38 and used to support the metal mesh conveyor belt 33 is provided between the two chains 38. Both ends of the support rod 39 are respectively penetrated through the chain link pin shaft holes of the corresponding chain through supporting short pins, and the active sprocket 36 is driven by the motor 11 arranged on the support frame 1. The motor 11 drives the driving sprocket 36 on the driving roller 34 to move, and the driving sprocket 36 drives the driven sprocket 37 on the driven roller 35 to follow through the chain 38. During the rotation of the chain 38, the metal mesh conveyor belt 33 connected to the chain 38 rotates synchronously, and the metal mesh conveyor belt 33 forms a closed loop after passing through the driving roller 34 and the driven roller 35. In the present invention, the chain 38 is also arranged in the direction of the input section 3A, the pre-cleaning section 3B, the ozone cleaning section 3C, the post-cleaning section 3D and the output section 3E, and the chain 38 is provided with a guide plate 381 at the connection of the input section 3A, the pre-cleaning section 3B, the ozone cleaning section 3C, the post-cleaning section 3D and the output section 3E, that is, the guide plate 381 is provided at the turning point between each section, and the guide plate 381 is fixed on the first mounting plate 31 and the second mounting plate 32.

[0042] Furthermore, the outer surface of the metal mesh conveyor belt 33 is evenly distributed with a plurality of dividing fences 331 perpendicular to the surface of the metal mesh conveyor belt 33, the bottom of the dividing fence 331 is fixedly connected to the surface of the metal mesh conveyor belt 33, the direction in which the dividing fence 331 is set coincides with the direction in which the active roller 34 is set, and the cross-section of the dividing fence 331 is triangular; the inner side surfaces of the first mounting plate 31 and the second mounting plate 32 are respectively provided with baffles 30 for accommodating sprockets and chains, and the baffles 30 are located on the outer side of the edge of the upper surface of the metal mesh conveyor belt 33 and avoid the metal mesh conveyor belt 33.

[0043] The auxiliary leaf blowing pipe 5 is located inside the mesh chain conveyor belt 3, one end of which is closed, and the other end is bypassed by the M-type return pipe 44 through the air duct 52, that is, the auxiliary leaf blowing pipe 5 is located between the upper and lower layers of the metal mesh conveyor belt 3, the auxiliary leaf blowing pipe 5 is arranged parallel to the active roller 34 of the mesh chain conveyor belt 3 and is located on the front side of the active roller 34, and a plurality of leaf jet holes 51 are evenly distributed on the auxiliary leaf blowing pipe 5, and the air outlet direction of the leaf jet hole 51 points to the lower right.

[0044] The working process and principle of the present invention are as follows:

[0045] Before washing tea leaves, firstly, water is injected into the water tank through the water inlet on the final washing pipeline connected to the external water source. After the water injection is completed, the motor, vortex air pump, circulating water pump and ozone generator are turned on, and the fresh tea leaves are transported from the outside to the front end of the metal mesh conveyor belt, and the fresh tea leaves are transported forward on the metal mesh conveyor belt. The circulating water pump sucks the water in the water tank through the filter water tank, and then sprays the water through the first nozzle on the pre-spray washing pipeline. After the fresh tea leaves are washed by the first nozzle, they are transported through the metal mesh conveyor belt and enter the ozone washing section. The ozone generated by the ozone generator enters the ozone aeration at the bottom of the water tank after passing through the vortex air pump and the M-type backflow prevention device. The ozone is sprayed out through the aeration holes on the ozone aeration pipeline, and the fresh tea leaves are sterilized and cleaned through the rolling ozone bubbles in the water pool and the stirring of the water column sprayed from the second nozzle. Then, the tea leaves are transported to the inclined post-cleaning section through the metal mesh conveyor belt. At this time, the third nozzle on the final washing pipeline starts to rinse the fresh tea leaves to wash away the remaining residues on the surface. The washed tea leaves enter the output section, and at the end of the output section, the auxiliary leaf blowing pipe arranged on the inner side of the active roller blows the tea leaves to the next process. During the cleaning process, the water quality can be observed through the filter tank. If the water quality is too poor to affect the cleaning effect, the water can be discharged through the drain pipe.

[0046] The beneficial effects of the present invention are as follows: 1) The present invention has a compact design structure and can realize uninterrupted cleaning by conveying fresh tea leaves through a metal mesh conveyor belt. A fresh tea leaf input device can be placed at the front end of the cleaning machine and an output device can be arranged at the rear end to form a cleaning module on the continuous tea processing production line, which has high cleaning efficiency and is easy to use; 2) The metal mesh conveyor belt of the present invention is a metal mesh structure, which can effectively avoid the problems of adhesion and secondary pollutant deposition during the transportation of fresh tea leaves; at the same time, the partition fence arranged on the metal mesh conveyor belt can effectively improve the transportation efficiency; 3) The fresh tea leaf cleaning process of the present invention is divided into three stages: pre-spray washing, immersion ozone cleaning and post-cleaning, which are completed in different areas of the fresh tea leaf transportation and feeding in sequence, wherein the pre-spray washing adopts high-pressure water flushing for preliminary cleaning, and the immersion ozone cleaning adopts bottom aeration to input ozone bubbles for spraying The water column stirs the surface of the tea leaves to deeply clean the pollutants and agricultural residues. The post-cleaning uses high-pressure water spray to remove the residues on the surface of the tea leaves, and finally completes the cleaning of the tea leaves. The whole cleaning process has a clear division of labor and little mutual interference, which not only effectively reduces the probability of cross-contamination, but also effectively improves the cleaning effect of agricultural residues and pollutants in the tea leaves by using the strong oxidation ability of ozone; 4) The pre-spraying and immersion ozone cleaning water uses filtered water for recycling, and the post-cleaning uses a clean water source. The drain valve is opened and closed according to the water quality in the water tank, which is energy-saving and environmentally friendly, and can ensure the cleaning effect; 5) The present invention adopts an M-type anti-backflow pipe. This design can effectively prevent the inertial backflow of the cleaning water to the vortex air pump caused by the instantaneous air pressure difference. At the same time, the middle bend of the M-type bend and the drain plug structure can discharge a small amount of reflux water online, which is convenient and efficient.

[0047] The embodiments described above are merely descriptions of preferred implementation modes of the present invention and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A fresh tea leaf ozone cleaning machine for a continuous production line, characterized in that: The invention comprises a water tank body (2) arranged in a supporting frame (1), a mesh chain conveyor belt (3) arranged in the water tank body (2) and arranged along the material feeding direction, a spraying and flushing device located above the water tank body (2), an ozone aeration pipeline (4) arranged in the water tank body, and an auxiliary leaf blowing pipe (5) arranged near the end of the mesh chain conveyor belt (3), wherein the spraying and flushing device comprises a pre-spraying and flushing pipeline (6), an ozone flushing pipeline (7) and a final flushing pipeline (8) arranged in sequence along the material feeding direction, the ozone aeration pipeline (4) is connected to an ozone generator (41), and the mesh chain conveyor belt (3) comprises a feeding pipe (5) for feeding the material. An input section (3A), a pre-cleaning section (3B) corresponding to the pre-spraying pipeline (6), an ozone cleaning section (3C) corresponding to the ozone flushing pipeline (7) and the ozone aeration pipeline (4), a post-cleaning section (3D) corresponding to the final cleaning pipeline (8), and an output section (3E) for discharging materials, wherein the materials enter from the input section (3A), are preliminarily cleaned by the pre-spraying pipeline (6) in the pre-cleaning section (3B), are deeply cleaned by the ozone flushing pipeline (7) and the ozone aeration pipeline (4) in the ozone cleaning section (3C), are finally cleaned by the final cleaning pipeline (8) in the post-cleaning section (3D), and are then discharged from the output section (3E); A filtering water tank (29) communicating with the interior of the water tank (2) is provided on the outer wall of the water tank body (2); a water outlet of the filtering water tank (29) is communicated with the pre-spraying pipeline (6) and the ozone flushing pipeline (7) via a water pipe (20); a circulating water pump (201) is provided on the water pipe (20); a water outlet hole communicating with the filtering water tank (29) and the interior of the water tank body (2) is provided on the wall of the water tank body (2); a filter screen (291) pluggably matched with the filtering water tank (29) is provided at the water outlet hole; The ozone generator (41) is connected to the vortex air pump (42), the ozone aeration pipeline (4) is connected to the air outlet of the vortex air pump (42) through an air pipe, the ozone aeration pipeline (4) is located between the bottom plate of the water tank body (2) and the mesh chain conveyor belt (3), and between the ozone flushing pipeline (7) and the final flushing pipeline (8), and the air pipe includes an M-type anti-backflow pipeline (44), a first air pipe (44) connecting the M-type anti-backflow pipeline (44) and the vortex air pump (42), and a second air pipe (44) connecting the M-type anti-backflow pipeline (44) and the vortex air pump (42). 5) and a second air pipe (46) connecting the M-shaped backflow prevention pipeline (44) and the ozone aeration pipeline (4), wherein an observation window (441) is provided at the middle bend of the M-shaped backflow prevention pipeline (44), and a drain hole (442) is provided at the bottom end of the middle bend of the M-shaped backflow prevention pipeline (44), and a drain plug is provided at the drain hole (442), and the air pipe, vortex air pump (42), and ozone generator (41) are all located outside the water tank body (2) and fixed on the support frame (1); The ozone aeration pipeline (4) is arranged horizontally on the horizontal plate surface of the bottom plate of the water tank body (2) as a whole, and is composed of longitudinal pipes (47) and transverse pipes (48) that are crisscrossed and interconnected with each other. The arrangement direction of the transverse pipe (48) is consistent with the material feeding direction. A plurality of aeration holes (43) are evenly distributed on the transverse pipe (48). The air outlet direction of the aeration holes (43) is perpendicular to the surface of the mesh chain conveyor belt (3). The longitudinal pipe (47) or the transverse pipe (48) is provided with an air inlet hole; The pre-spraying pipeline (6) and the ozone flushing pipeline (7) are connected to a water source inside the water tank body (2) through a water pipe (20), and the final flushing pipeline (8) is connected to a clean water source outside the water tank body (2). The pre-spraying pipeline (6) is arranged above the pre-cleaning section (3B), and comprises a first tube body (61) and a second tube body (62) arranged in parallel along a material feeding direction. A plurality of fifth tube bodies (63) connecting the first tube body (61) and the second tube body (62) are arranged between the first tube body (61) and the second tube body (62). A first nozzle (64) is arranged on the fifth tube body (63), and the spraying direction of the first nozzle (64) is perpendicular to the surface of the mesh chain conveyor belt (3) located in the pre-cleaning section (3B). The first nozzles (64) on two adjacent fifth tube bodies (63) are arranged in a staggered manner. The ozone flushing pipeline (7) is arranged above the ozone cleaning section (3C), and is located as a whole above the water tank body ( 2) Above the inclined plate of the bottom plate, a third tube body (71) and a fourth tube body (72) are arranged in parallel along the material feeding direction, wherein the third tube body (71) is connected to the rear end of the first tube body (61), and the fourth tube body (72) is connected to the rear end of the second tube body (62). The front ends of the first tube body (61) and the second tube body (62) and the rear ends of the third tube body (71) and the fourth tube body (72) are all closed ends. The third tube body (71) is also provided with a water inlet connected to the water pipe (20). A plurality of sixth tube bodies (73) are provided between the third tube body (71) and the fourth tube body (72) to connect the two. The sixth tube body (73) is provided with a second nozzle (74), and the second nozzle (74) is perpendicular to the surface of the mesh chain conveyor belt (3) located in the ozone cleaning section (3C). The second nozzles (74) on two adjacent sixth tube bodies (73) are arranged in a staggered manner.

2. The fresh tea leaf ozone cleaning machine for a continuous production line according to claim 1, characterized in that: The mesh chain conveyor belt (3) is fixed between a first mounting plate (31) and a second mounting plate (32), and the first mounting plate (31) and the second mounting plate (32) are arranged along the front-rear direction of the water tank body (2). The mesh chain conveyor belt (3) comprises a metal mesh conveyor belt (33), a driving roller (34) located in an output section, a driven roller (35) located in an input section, a driving sprocket (36) arranged at both ends of the roller shaft of the driving roller, a driven sprocket (37) arranged at both ends of the roller shaft of the driven roller, and two chains (38) connecting the driving sprocket (36) and the driven sprocket (37). A support rod (39) connected to the two chains (38) and used to support the metal mesh conveyor belt (33) is provided between the two chains (38), and both ends of the support rod (39) are respectively inserted into the chain link pin shaft holes of the corresponding chain through supporting short pins, and the driving sprocket (36) is driven by a motor (11) arranged on the support frame (1).

3. The fresh tea leaf ozone cleaning machine for a continuous production line according to claim 2, characterized in that: The input section (3A), pre-cleaning section (3B), ozone cleaning section (3C), post-cleaning section (3D) and output section (3E) are arranged in sequence, the input section (3A) and the output section (3E) are in the same horizontal plane, and the bottom of the board surface corresponding to the input section (3A) and the output section (3E) on the first mounting plate (31) and the second mounting plate (32) are arranged at the front and rear ends of the water tank body (2), the pre-cleaning section (3B) and the post-cleaning section (3D) are respectively consistent with the setting direction of the front side plate and the rear side plate of the water tank body (2), and the ozone cleaning section (3C) is located at the bottom of the water tank body (2) and has a gap with the bottom of the water tank body (2).

4. The fresh tea leaf ozone cleaning machine for a continuous production line according to claim 2, characterized in that: The outer surface of the metal mesh conveyor belt (33) is evenly distributed with a plurality of partition bars (331) perpendicular to the surface of the metal mesh conveyor belt (33), the direction in which the partition bars (331) are arranged coincides with the direction in which the active roller (34) is arranged, and the cross-section of the partition bars (331) is triangular; the inner side surfaces of the first mounting plate (31) and the second mounting plate (32) are respectively provided with baffles (30) for accommodating sprockets and chains, the baffles (30) being located on the outer side of the upper surface edge of the metal mesh conveyor belt (33) and avoiding the metal mesh conveyor belt (33); the chain (38) is respectively provided with guide plates (381) for guiding at the connection points of the input section (3A), the pre-cleaning section (3B), the ozone cleaning section (3C), the post-cleaning section (3D) and the output section (3E), and the guide plates (381) are fixed on the first mounting plate (31) and the second mounting plate (32).

5. The fresh tea leaf ozone cleaning machine for a continuous production line according to claim 1, characterized in that: The water tank body (2) is an integral structure, and its cross section is a trapezoid with a long upper side and a short lower side, and comprises a front side plate (21), a rear side plate (22), a left side plate (23), a right side plate (24) and a bottom plate (25) which are connected to each other. The bottom plate (25) is composed of an inclined plate (251) at the front end and a horizontal plate (252) at the rear end. The inclined plate (251) is lower in front than in the back. A drainage hole (26) is provided on the inclined plate (251). The drainage hole (26) is connected to a drainage pipe (27) at the bottom of the water tank body (2), and a drainage valve (271) is provided on the drainage pipe (27). A flange (28) welded to the support frame (1) is provided at the notch of the water tank body (2) along its circumference.

6. The fresh tea leaf ozone cleaning machine for a continuous production line according to claim 1, characterized in that: The auxiliary leaf blowing pipe (5) is located inside the mesh chain conveyor belt (3), one end of which is closed, and the other end of which is bypassed by the M-type anti-backflow pipeline (44) through the air duct (52). The auxiliary leaf blowing pipe (5) is arranged parallel to the active roller (34) of the mesh chain conveyor belt (3) and is located on the front side of the active roller (34). The auxiliary leaf blowing pipe (5) is evenly distributed with a plurality of leaf jet holes (51), and the air outlet direction of the leaf jet holes (51) points to the lower right.

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