A device and method for preparing an ecological dye based on tea waste

Abstract

The application relates to the technical field of tea dye preparation, in particular to a device and method for preparing ecological dyes based on tea waste, wherein the device comprises a cleaning assembly, one side of the cleaning assembly is connected with an electric heating drying assembly, an air extraction assembly is jointly arranged between the electric heating drying assembly and the cleaning assembly, a crushing tank assembly is arranged at the lower end of the electric heating drying assembly, the method comprises the following steps: cleaning tea waste, salvaging and draining, drying tea waste, crushing and grinding tea waste, rinsing, stirring and mixing, fully stirring, sedimentation and filtration, and obtaining dyes. The tea waste can be recycled through the pipeline equipment, ecological dyes can be effectively obtained from the tea waste, the waste in the ecological dye preparation process can be directionally output, the output impurities are non-polluting, the ecological dye preparation equipment can be continuously operated, and the quality and efficiency of the natural dyes can be ensured.

Description

Technical Field

[0001] This invention relates to the field of tea dye preparation technology, and in particular to an eco-friendly dye preparation device and method based on tea waste. Background Technology

[0002] In today's highly developed tea industry, many inferior teas taste bad when brewed, and it's a pity to throw them away. Under such circumstances, using tea leaves for coloring is perfect, and tea leaves contain their unique aroma and many substances that are beneficial to the body.

[0003] The invention discloses a preparation process and application of a natural tea dye, with announcement number CN104031402A. The process includes: washing and drying tea leaves; mechanically pulverizing the tea leaves to obtain tea powder; adding an ethanol-water solution to the tea powder, stirring, sealing and allowing it to stand, then keeping it warm, cooling and filtering to obtain a primary filtrate; allowing it to stand for 1 hour, then performing a secondary filtration to obtain a secondary filtrate; and evaporating and concentrating the filtrate using vacuum distillation to obtain the natural tea dye. This invention extracts natural dyes from tea leaves without polluting the environment and effectively preserves the unique aroma of the tea. Fabrics dyed with this natural tea dye exhibit a very natural and distinctive color, without altering the fabric's texture or feel, and possess a lingering fragrance.

[0004] The above technical solution can process inferior tea leaves into dyes, but it cannot form a streamlined dye production system, which is not conducive to improving the efficiency of dye production. Therefore, it needs to be improved. Summary of the Invention

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an eco-friendly dye preparation device and method based on tea waste.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: An eco-friendly dye preparation device based on tea waste includes a cleaning component, an electric heating drying component connected to one side of the cleaning component, and an exhaust component installed between the electric heating drying component and the cleaning component. The lower end of the electric heating drying assembly is provided with a pulverizing tank assembly, the upper side of the pulverizing tank assembly is provided with an ethanol solution supply assembly, the lower end of the pulverizing tank assembly is provided with a stirring tank assembly, and the lower end of the stirring tank assembly is provided with a filter tank assembly and an electric heating distillation assembly in sequence. Both the mixing tank assembly and the filter tank assembly have electrically controlled valve pipes extending through their lower ends, and the lower ends of the two electrically controlled valve pipes are respectively installed at the upper ends of the filter tank assembly and the electrothermal distillation assembly. The cleaning assembly is equipped with a cleaning tank, which contains a cleaning mechanism and a retrieval mechanism. The retrieval mechanism is connected to the electric heating drying assembly. The electric heating drying assembly includes a conveyor frame assembly, which in turn includes a drying mechanism and an output mechanism. The conveyor mechanism is located at the upper end of the crushing tank assembly, and the drying mechanism is connected to the retrieval mechanism. The pulverizing tank assembly includes a conical tank, which contains a grinding and pulverizing mechanism, and the mixing tank assembly includes a mixing mechanism. The air extraction assembly is connected to the cleaning mechanism and the drying mechanism.

[0007] Compared with existing technologies, this invention can reuse tea waste through a production line-style device to effectively obtain ecological dyes from the tea waste. The waste generated during the ecological dye preparation process can also be output in a targeted manner, which is convenient for centralized collection and treatment. The output impurities are non-polluting, and the ecological dye preparation equipment can be operated continuously to ensure the quality and efficiency of natural dye acquisition.

[0008] Preferably, the cleaning mechanism includes a spray plate assembly installed in the middle of the upper part of the cleaning tank, a liquid supply assembly installed on the spray plate assembly, a retrieval mechanism that runs through the cleaning tank, a plurality of diversion pipes that are evenly spaced at the bottom of the cleaning tank, a plurality of aeration components that are evenly spaced on the diversion pipes, and an air supply pipe that runs through one end of the plurality of diversion pipes, the air supply pipe being connected to an air extraction assembly.

[0009] Furthermore, the liquid supply component is connected to the water pump to facilitate water supply to the spray plate assembly. The spray plate assembly is bent and includes a horizontal end and an inclined end. The horizontal end sprays water into the cleaning tank, and the inclined end sprays water onto the conveyor belt assembly. The gas extracted from the electric heating drying unit can be discharged into the cleaning tank through the aeration unit to achieve aeration, which facilitates contact with the tea waste in the cleaning tank. At the same time, the spraying of the spray plate unit can also cause water to impact the tea waste, completing the cleaning operation. After the conveyor belt unit retrieves the waste, the spraying of the inclined end of the spray plate unit can clean the tea waste again, improving the cleaning quality and removing impurities from the tea waste.

[0010] Preferably, the retrieval mechanism includes a conveyor belt assembly that runs through the cleaning tank, the conveyor belt assembly being inclined and positioned above the aeration assembly, and the spray plate assembly being bent, with the inclined end of the spray plate assembly corresponding to the conveyor belt assembly. The lower end of the cleaning tank is provided with a first electrically controlled valve discharge pipe; An input plate is installed on the end of the cleaning tank away from the conveyor belt assembly.

[0011] Furthermore, the conveyor belt assembly consists of a motor, two rollers, and a conveyor belt fitted on the two rollers. The conveyor belt adopts a screen structure, which facilitates the drop of water and allows it to contact the second screen plate so that the second screen plate can fully scrape off the tea waste on the conveyor belt inside the conveyor belt assembly. After the tea waste is collected, it can be conveyed into the washing tank through the input plate. After being washed in the washing tank, it can be lifted up by the conveyor belt assembly. During the lifting process, water can be drained, reducing the water content in the tea waste, which helps it to be dried quickly after entering the electric heating drying assembly. Meanwhile, the discharge volume can be controlled through the first electrically controlled valve discharge pipe to achieve circulation. In actual production, the first electrically controlled valve discharge pipe can be connected to the wastewater treatment equipment to treat sewage and protect the environment. The first electrically controlled valve discharge pipe drains water, the liquid supply component supplies water, and the spray plate assembly sprays water, fully controlling the spray volume and drainage volume to avoid the water level in the cleaning tank from dropping.

[0012] Preferably, the drying mechanism includes two electric heating components installed on both sides of the conveyor frame assembly. The upper electric heating component is installed on the inclined end of the conveyor frame assembly. A second screen plate is fixed on the inclined end of the conveyor frame assembly. The upper ends of both the conveyor frame assembly and the second screen plate are connected to the retrieval mechanism. The upper and lower ends of the conveyor frame assembly away from the retrieval mechanism are respectively fixed with a first screen plate and a third screen plate. The first screen plate and the third screen plate are both inclined. The first screen plate is inclined to the second screen plate. The output mechanism is connected to the third sieve plate; The electric heating assembly located at the lower end is positioned between the first screen plate and the third screen plate.

[0013] Furthermore, the first, second, and third screen plates all adopt stainless steel screen plate structures, which facilitates gas flow and enables continuous gas flow within the conveyor frame assembly. This allows for the extraction of moisture from the conveyor frame assembly, improving drying efficiency. Simultaneously, it can replenish gas into the conveyor frame assembly, enabling directional gas flow and carrying tea waste into the conveyor frame assembly. In actual operation, a silicone plate can be installed at one end of the second screen plate. The silicone plate and the conveyor belt assembly contact each other, allowing tea waste to pass through the second screen plate and enter the conveyor frame assembly. At the same time, gas can enter through the air between the second screen plate and the conveyor frame assembly. When setting up, the first, second, and third sieve plates are all tilted. This method can prevent tea waste from adhering to them. Meanwhile, the temperature inside the conveyor frame assembly can be increased by setting up an electric heating component for drying operations. In addition, corresponding temperature sensing components can be installed inside the conveyor frame assembly to facilitate temperature control.

[0014] Preferably, the output mechanism includes an automatic closing assembly installed at the bottom of the conveyor frame assembly, the automatic closing assembly being disposed at the lower end of the third screen plate; The lower end of the conveyor frame assembly passes through the conical tank, and the automatic sealing assembly is located at the upper end of the conical tank.

[0015] Furthermore, the automatic sealing assembly consists of an electrically controlled telescopic rod assembly and a rotating plate. The electrically controlled telescopic rod assembly and the rotating plate are connected and can be driven to rotate so as to seal the lower end of the conveyor frame assembly. When closed, the tea waste inside the conveyor frame assembly can be dried. When drying is complete, the automatic closing assembly can be opened to allow the tea waste to fall for crushing and grinding.

[0016] Preferably, the air extraction assembly includes an air pump assembly, the air pump assembly has an air delivery pipe fixed at its air delivery end, the air delivery pipe passes through the cleaning tank and extends into the cleaning tank, and the cleaning tank is connected to the cleaning mechanism. The suction end of the air pump assembly is connected to a first suction pipe, and a second suction pipe is provided through the upper end of the first suction pipe. Both the second suction pipe and the first suction pipe are connected to the drying mechanism.

[0017] Furthermore, the suction pump assembly can generate suction so that the first and second suction pipes can draw gas from the conveying frame assembly through the first and third screen plates and transport it to the air supply pipe for aeration. The suction pump assembly generates suction, which creates a low-pressure state inside the conveyor frame assembly, facilitating the flow of gas into the conveyor frame assembly. This allows air to enter from the opening at the installation location of the second screen plate, which corresponds to the conveyor belt assembly. The tea waste on the conveyor belt assembly can then be fully introduced into the conveyor frame assembly by the gas flow.

[0018] Preferably, the grinding and pulverizing mechanism includes a vertical shaft that extends through the conical tank. A conical grinding assembly is fixed to the lower end of the vertical shaft. The conical grinding assembly is located inside the conical tank. Multiple pulverizing blade assemblies are fixed at equal intervals on the vertical shaft. All multiple pulverizing blade assemblies are located at the upper end of the conical grinding assembly. The vertical shaft extends to the upper end of the conical tank and is connected to a pulverizing motor assembly. The pulverizing motor assembly and the conical tank are fixedly connected. The lower end of the conical tank is fixed with a second electrically controlled valve discharge pipe, which is connected to the mixing tank assembly. The distance between the conical grinding assembly and the inner wall of the conical jar gradually decreases from top to bottom.

[0019] Furthermore, the crushing motor assembly can drive the vertical shaft to rotate, and the rotation of the vertical shaft can drive the crushing blade assembly and the conical grinding assembly to rotate. The dried tea waste can be cut by the rotating crushing blade assembly, and at the same time, the cut tea waste enters between the conical grinding assembly and the conical tank for grinding. The upper end of the conical grinding component is conical, meaning that tea waste falling on the upper end can also enter between the conical grinding component and the conical tank as the conical grinding component rotates. At the same time, by reducing the distance, a fine grinding effect is achieved, so that the tea waste is completely broken down, which helps the subsequent precipitation of dye substances, thereby improving the quality of dye preparation. At the same time, the conical tank is connected to the ethanol solution supply component, which can control the ethanol solution in the ethanol solution supply component to enter the conical tank, and can wash the abrasive on the inner wall of the conical tank and the side wall of the conical grinding component, causing the material in the conical tank to fall. Furthermore, during discharge, the pulverizing motor assembly continues to rotate, enabling continuous grinding. This also allows the ethanol solution to fully contact the inner wall of the conical tank and the conical grinding assembly, improving the quality of rinsing and achieving a complete discharge effect.

[0020] Preferably, the mixing tank assembly includes a mixing tank, the mixing mechanism is disposed on the mixing tank, an internal gear ring is rotatably sleeved on the top of the mixing tank, a scraper is fixed to the lower end of the internal gear ring, and the scraper abuts against the side wall inside the internal gear ring. The mixing tank is equipped with a stirring motor assembly, the output end of which extends into the mixing tank. A gear is fixed to the end of the output shaft of the stirring motor assembly, and the gear meshes with an internal gear ring. A stirring component is fixed to the lower end of the gear. One of the electrically controlled valve fittings is installed through the lower end of the mixing tank.

[0021] Furthermore, the mixing tank is designed with a conical bottom to facilitate rapid output of the mixture. The tank material in this invention can be stainless steel, which helps extend the service life of the equipment and makes it easy to clean. The stirring motor assembly can drive the gear component to rotate. Through the meshing of the gear component and the internal gear ring component, the internal gear ring component can rotate. The rotation of the internal gear ring component can drive the scraper component to rotate. The scraper component can rotate out of the inner wall of the mixing tank to prevent material from adhering to the inner wall of the mixing tank. Furthermore, through the rotation of the scraper component, the grinding material and ethanol solution in the mixing tank can be stirred. The gear can drive the stirring component to rotate, which can improve the quality of stirring. Moreover, during the preparation process, the stirring component can be eccentrically installed at the lower end of the gear. When the gear rotates, the stirring component can rotate around the axis of the gear, which can also fully stir and improve the mixing quality.

[0022] Preferably, the filter tank assembly includes a storage tank, a filter screen is installed inside the storage tank, and the auger cleaning assembly is disposed through the lower end of the storage tank and disposed at the upper end of the filter screen. Another electrically controlled valve fitting is installed through the lower end of the storage tank.

[0023] Furthermore, the filter screen is made of stainless steel and is designed with a V-shaped structure, with an arc at the bottom to facilitate its alignment with the auger component inside the auger cleaning assembly. This allows the auger inside the auger cleaning assembly to directionally transport impurities attached to the bottom of the filter screen when it rotates. Meanwhile, the V-shaped design of the filter screen helps to transport impurities to the bottom during filtration. That is, under the flushing action of the liquid, most impurities will flow down along the inclined wall of the filter screen, and a few will adhere to the side wall of the filter screen. These residual parts will not affect subsequent filtration. The auger cleaning assembly consists of a pipe fitting, an auger component, a motor, and a pipe fitting with an electrically controlled valve that runs through the lower end. The pipe fitting and the storage tank are connected but do not extend into the storage tank. The auger component extends into the storage tank and is located at the bottom inside the filter screen. The motor and the auger component are connected for easy control by the operator. The motor drives the auger component to rotate, causing impurities on the filter screen to move into the pipe fitting so that they can be discharged through the pipe fitting with the electrically controlled valve.

[0024] This invention also proposes a method for preparing eco-dyes based on tea waste, applicable to the aforementioned eco-dye preparation device based on tea waste, comprising the following steps: S1. Tea Waste Cleaning: Add clean water to the cleaning tank, collect tea waste and pour it onto the input plate. The tea waste enters the cleaning tank, and the clean water, under the action of the liquid supply component, impacts the tea leaves in the cleaning tank through the spray plate component, cleaning the tea leaves; the aeration component introduces gas into the cleaning tank, causing the clean water in the cleaning tank to churn, improving the cleaning quality of the tea leaves, while the tea leaves move towards the conveyor belt component. S2, Draining: The conveyor belt assembly rotates, scooping the tea waste from the washing tank onto the side of the conveyor belt assembly near the spray plate assembly, while simultaneously lifting the tea waste upwards, allowing the water on the tea waste to be discharged through the conveyor belt assembly. S3. Tea waste drying: The cleaned tea waste enters the conveyor frame assembly through the conveyor belt assembly along the second screen plate. The two electric heating components are activated to increase the temperature inside the conveyor frame assembly. At the same time, air can be drawn from one side of the first and third screen plates through the second and first exhaust pipes, allowing the tea waste to enter the conveyor frame assembly. Meanwhile, gas enters the conveyor frame assembly from the other side of the second screen plate. Some of the gas enters the conveyor frame assembly through the conveyor belt assembly, improving the draining efficiency of the tea waste on the conveyor belt assembly. Moreover, the extracted gas enters the diversion pipe through the air pump assembly and the air delivery pipe, so that the tea waste can be aerated and cleaned in the cleaning tank through the aeration assembly. The automatic sealing component controls the amount of tea waste entering the crushing tank component; S4. Tea waste crushing and grinding: The automatic sealing component operates to allow tea waste to enter the conical tank. The crushing motor component drives the crushing blade component and the conical grinding component on the vertical shaft to rotate. The crushing blade component crushes the tea waste. The crushed material enters the conical grinding component and the discharge pipe of the second electric control valve to be ground. S5. Rinsing and mixing: Control the grinding time and control the ethanol solution supply component to rinse the inside of the grinding tank component. At the same time, open the second electric control valve discharge pipe to allow the grinding material in the grinding tank component and the ethanol material flowing out of the ethanol solution supply component to enter the mixing tank together. During rinsing, the grinding motor component operates to improve the rinsing quality. S6. Thorough mixing: The stirring motor assembly drives the gear component to rotate, which in turn causes the internal gear ring component to drive the scraper component to rotate, preventing the abrasive material from adhering to the inner wall of the mixing tank. At the same time, the gear component drives the stirring component to rotate, performing initial mixing. S7. Sedimentation and Filtration: The electrically controlled valve connecting the mixing tank assembly is opened, allowing the mixed material to enter the filter tank assembly, be filtered through the filter screen, and have the filtered impurities discharged directionally by the auger cleaning assembly, thus preventing blockage and filtration failure in the storage tank. S8. Obtaining dye: The filtrate enters the electrothermal distillation assembly through the electrically controlled valve at the lower end of the filter tank assembly. The electrothermal distillation assembly is started to distill, and the temperature inside the electrothermal distillation assembly is controlled to evaporate the ethanol and obtain the dye solution.

[0025] The beneficial effects of this invention are: 1. Through the operation of the spray and aeration components, the water can come into better contact with the tea waste, so as to clean the tea waste. Moreover, the inclined end of the spray plate assembly can also clean the tea waste after it has been scooped up, thus improving the quality of cleaning. 2. The conveyor belt assembly can perform the draining operation. Moreover, through the filter structure of the conveyor belt and the suction generated by the air extraction assembly, the gas can enter the conveyor frame assembly through the conveyor belt assembly and its surrounding area. During the gas flow, impurities on the tea waste can be removed, improving the draining effect. At the same time, the tea waste can be controlled, making it easier for the tea waste to enter the conveyor frame assembly. 3. By cutting and grinding, the crushing effect on tea waste is improved. At the same time, rinsing with ethanol solution can avoid residue in the crushing tank components, which facilitates the full reaction of the grinding material and ethanol in the subsequent process. 4. Tea dye can be obtained by distillation and concentration using an electrothermal distillation unit. Attached Figure Description

[0026] Figure 1 This is a structural diagram of an eco-friendly dye preparation device based on tea waste proposed in this invention; Figure 2 This is a diagram showing the internal structure of the cleaning tank in this invention; Figure 3 This is a diagram showing the internal structure of the conveyor frame assembly in this invention; Figure 4 This is a structural diagram of the air extraction component in this invention; Figure 5 This is a diagram showing the internal structure of the conical tank in this invention; Figure 6 This is a diagram showing the internal structure of the mixing tank in this invention; Figure 7 This is a structural diagram of the conveyor belt assembly in this invention; Figure 8 This is a diagram showing the internal structure of the storage tank in this invention; In the diagram: 1. Cleaning assembly, 11. Cleaning tank, 12. Input plate, 13. Spray plate assembly, 14. Liquid supply assembly, 15. Air supply pipe, 16. Aeration assembly, 17. First electrically controlled valve discharge pipe, 18. Conveyor belt assembly, 19. Diverter pipe, 2. Electric heating drying assembly, 21. Conveyor frame assembly, 22. First screen plate, 23. Second screen plate, 24. Third screen plate, 25. Automatic sealing assembly, 26. Electric heating assembly, 3. Air extraction assembly, 31. Air extraction pump assembly, 32. First air extraction pipe, 33. Air delivery pipe, 34. 4. Second suction pipe, 5. Ethanol solution supply assembly, 6. Grinding tank assembly, 7. Conical tank, 8. Grinding motor assembly, 9. Vertical shaft assembly, 10. Grinding blade assembly, 11. Conical grinding assembly, 12. Second electrically controlled valve discharge pipe, 13. Stirring tank assembly, 14. Mixing tank, 15. Stirring motor assembly, 16. Gear assembly, 17. Stirring component, 18. Scraper assembly, 19. Internal gear ring assembly, 10. Electrically controlled valve assembly, 11. Filter tank assembly, 12. Storage tank, 13. Screwdriver cleaning assembly, 14. Filter screen, 19. Electric distillation assembly. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] Reference Figures 1-8 An eco-friendly dye preparation device based on tea waste includes a cleaning component 1, an electric heating drying component 2 connected to one side of the cleaning component 1, and an exhaust component 3 installed between the electric heating drying component 2 and the cleaning component 1.

[0029] The lower end of the electric heating drying component 2 is connected to a grinding tank component 5, and the upper side of the grinding tank component 5 is connected to an ethanol solution supply component 4. The lower end of the grinding tank component 5 is connected to a stirring tank component 6, and the lower end of the stirring tank component 6 is connected to a filter tank component 8 and an electric heating distillation component 9. Tea waste includes broken tea leaves, tea stems, and tea leaves and tea dregs whose quality has been reduced after brewing. The tea waste enters the washing component 1 to be washed to remove impurities. The washed tea waste enters the electric heating drying component 2 to be dried to reduce its residual moisture. The dried tea waste is then conveyed into the grinding tank component 5 for grinding. After grinding, the tea waste enters the stirring tank component 6 under the operation of ethanol solution discharged from the ethanol solution supply component 4 for mixing. The mixed solution can be filtered through the filter tank component 8 and then evaporated and concentrated through the electric heating distillation component 9 to obtain ecological dyes.

[0030] In actual production and manufacturing, the automated components in this application are all existing equipment, and their structure and specifications can be adjusted according to the actual production situation. At the same time, their operating principles, required supporting equipment, control equipment, etc. are all common knowledge and do not need to be disclosed again.

[0031] Meanwhile, those skilled in the art can set up corresponding controllers to control the operation of the equipment in this application, and can also control the process through control equipment such as PLCs to achieve automatic or semi-automatic production solutions. Through the above process, assembly line production can be achieved, improving work efficiency.

[0032] The ethanol solution supply component 4 consists of a storage tank and an electrically controlled output valve, which can control the output of ethanol solution. At the same time, a liquid level detection sensor is also installed on the infusion tank to automatically replenish the liquid and avoid ethanol solution loss.

[0033] In this embodiment, both the stirring tank assembly 6 and the filter tank assembly 8 have electrically controlled valve fittings 7 extending through their lower ends. The lower ends of the two electrically controlled valve fittings 7 extend through the upper ends of the filter tank assembly 8 and the electrothermal distillation assembly 9, respectively. The cleaning assembly 1 has a cleaning tank 11, which contains a cleaning mechanism and a scooping mechanism. The scooping mechanism is connected to the electrothermal drying assembly 2. The electrically controlled valve fittings 7 control the downward flow of materials, facilitating filtration and distillation operations to obtain a concentrated dye solution. The cleaning mechanism and scooping mechanism in the cleaning tank 11 clean the tea waste and remove impurities.

[0034] In this embodiment, the electric heating drying assembly 2 includes a conveyor frame assembly 21, which contains a drying mechanism and an output mechanism. The output mechanism is located at the upper end of the grinding tank assembly 5, and the drying mechanism and the scooping mechanism are connected. The grinding tank assembly 5 contains a conical tank 51, which contains a grinding and pulverizing mechanism. The stirring tank assembly 6 contains a stirring and mixing mechanism. The exhaust assembly 3 is connected to the cleaning mechanism and the drying mechanism. The drying mechanism and the output mechanism reduce the moisture content of the tea waste, allowing for thorough grinding and better reaction with the ethanol solution, which helps in the precipitation of dye.

[0035] In actual operation, appropriate sensing components can be added as needed, such as the liquid level sensing component in the ethanol solution supply component 4; temperature sensing components can be added to the electric heating drying component 2 and the electric heating distillation component 9 for precise temperature control; and output ports or output pipes can be added to the rear end of the electric heating distillation component 9 to facilitate the output of concentrated dye. Under normal circumstances, the output components are closed, and after concentration is completed, they are opened to facilitate the output of concentrated dye.

[0036] In this embodiment, the cleaning mechanism includes a spray plate assembly 13 installed in the middle of the upper part of the cleaning tank 11. A liquid supply assembly 14 is installed on the spray plate assembly 13. A retrieval mechanism is disposed through the cleaning tank 11. Multiple diversion pipes 19 are evenly spaced at the bottom of the cleaning tank 11. Multiple aeration components 16 are evenly spaced on the diversion pipes 19. One end of the multiple diversion pipes 19 is connected to an air supply pipe 15, which is connected to an air extraction assembly 3. The liquid supply assembly 14 is connected to a water pump to facilitate water supply to the spray plate assembly 13. The spray plate assembly 13 is bent and includes a horizontal end and an inclined end. The horizontal end sprays water into the cleaning tank 11, and the inclined end sprays water onto the conveyor belt assembly 18.

[0037] The gas extracted from the electric heating drying component 2 can be discharged into the cleaning tank 11 through the aeration component 16 to achieve aeration, which facilitates contact with the tea waste in the cleaning tank 11. At the same time, the spraying of the spray plate component 13 can also cause the water to impact the tea waste, completing the cleaning operation of the tea waste. After the conveyor belt component 18 retrieves the waste, the spraying of the inclined end of the spray plate component 13 can clean the tea waste again, improving the cleaning quality and removing impurities from the tea waste.

[0038] In this embodiment, the retrieval mechanism includes a conveyor belt assembly 18 that runs through the cleaning tank 11. The conveyor belt assembly 18 is inclined and positioned above the aeration assembly 16. A spray plate assembly 13 is bent, with its inclined end corresponding to the conveyor belt assembly 18. A first electrically controlled valve discharge pipe 17 runs through the lower end of the cleaning tank 11. An input plate 12 is installed on the end of the cleaning tank 11 away from the conveyor belt assembly 18. The conveyor belt assembly 18 consists of a motor, two rollers, and a conveyor belt sleeved on the two rollers. The conveyor belt has a screen structure, which facilitates water drop and allows it to abut against the second screen plate 23, so that the second screen plate 23 can fully scrape away the tea waste on the conveyor belt inside the conveyor belt assembly 18.

[0039] After the tea waste is collected, it can be conveyed into the washing tank 11 through the input plate 12. After being washed in the washing tank 11, it can be lifted up by the conveyor belt assembly 18. During the lifting process, water can be drained, reducing the water content in the tea waste, which helps it to be dried quickly after entering the electric heating drying assembly 2.

[0040] Meanwhile, the discharge volume can be controlled through the first electrically controlled valve discharge pipe 17 to achieve circulating flow. In actual production, the first electrically controlled valve discharge pipe 17 can be connected to wastewater treatment equipment to treat sewage and protect the environment. The first electrically controlled valve discharge pipe 17 drains water, the liquid supply component 14 supplies water, and the spray is carried out through the spray plate component 13 to fully control the spray volume and drainage volume, and avoid the water level in the cleaning tank 11 from dropping.

[0041] In this embodiment, the drying mechanism includes two electric heating components 26 installed on both sides of the conveyor frame assembly 21. The upper electric heating component 26 is installed on the inclined end of the conveyor frame assembly 21. A second screen plate 23 is fixed on the inclined end of the conveyor frame assembly 21. The upper ends of the conveyor frame assembly 21 and the second screen plate 23 are both connected to the retrieval mechanism.

[0042] The first screen plate 22 and the third screen plate 24 are fixed at the upper and lower ends of the side away from the retrieval mechanism inside the conveyor frame assembly 21, respectively. The first screen plate 22 and the third screen plate 24 are both inclined. The first screen plate 22 is set at the inclination of the second screen plate 23.

[0043] The output mechanism is connected to the third sieve plate 24; the electric heating component 26 located at the lower end is set between the first sieve plate 22 and the third sieve plate 24; the first sieve plate 22, the second sieve plate 23, and the third sieve plate 24 all adopt stainless steel sieve plate structure, which can facilitate the flow of gas, so as to realize the continuous flow of gas in the conveyor frame assembly 21, extract the moisture in the conveyor frame assembly 21, improve the drying efficiency, and at the same time, it can also replenish the gas in the conveyor frame assembly 21 so that the gas flows in a directional manner, and carries the tea waste into the conveyor frame assembly 21.

[0044] In actual operation, a silicone plate can be installed at one end of the second screen plate 23. The silicone plate and the conveyor belt assembly 18 abut against each other, allowing tea waste to pass through the second screen plate 23 and enter the conveyor frame assembly 21. At the same time, gas can enter through the air between the second screen plate 23 and the conveyor frame assembly 21.

[0045] When setting up, the first screen plate 22, the second screen plate 23, and the third screen plate 24 are all set at an angle. This method can prevent tea waste from adhering to them.

[0046] Meanwhile, the electric heating component 26 can raise the temperature inside the conveyor frame assembly 21 for drying operations. Additionally, a corresponding temperature sensing component can be installed inside the conveyor frame assembly 21 to facilitate temperature control.

[0047] In this embodiment, the output mechanism includes an automatic closing component 25 installed at the bottom of the conveyor frame assembly 21. The automatic closing component 25 is located at the lower end of the third screen plate 24. The lower end of the conveyor frame assembly 21 and the conical tank 51 are connected through each other, and the automatic closing component 25 is located at the upper end of the conical tank 51. The automatic closing component 25 consists of an electrically controlled telescopic rod assembly and a rotating plate. The electrically controlled telescopic rod assembly and the rotating plate are connected and can be pushed to rotate so as to close the lower end of the conveyor frame assembly 21.

[0048] When closed, the tea waste inside the conveyor assembly 21 can be dried. When drying is complete, the automatic closing assembly 25 can be opened to allow the tea waste to fall for crushing and grinding.

[0049] In this embodiment, the air extraction assembly 3 includes an air extraction pump assembly 31. An air delivery pipe 33 is fixed to the air delivery end of the air extraction pump assembly 31. The air delivery pipe 33 passes through the cleaning tank 11 and extends into the cleaning tank 11, which is connected to the cleaning mechanism. A first air extraction pipe 32 is connected to the air extraction end of the air extraction pump assembly 31. A second air extraction pipe 34 passes through the upper end of the first air extraction pipe 32. Both the second air extraction pipe 34 and the first air extraction pipe 32 are connected to the drying mechanism. The air extraction pump assembly 31 generates suction so that the first air extraction pipe 32 and the second air extraction pipe 34 can extract gas from the conveying frame assembly 21 through the first screen plate 22 and the third screen plate 24, and transport it to the air supply pipe 15 through the air delivery pipe 33 for aeration.

[0050] The suction pump assembly 31 generates suction, which creates a low-pressure state inside the conveyor frame assembly 21, facilitating the flow of gas into the conveyor frame assembly 21. This allows air to enter from the opening at the installation location of the second screen plate 23, which corresponds to the conveyor belt assembly 18. The tea waste on the conveyor belt assembly 18 can then fully enter the conveyor frame assembly 21 under the action of the gas flow.

[0051] In this embodiment, the grinding and pulverizing mechanism includes a vertical shaft 53 that penetrates within a conical tank 51. A conical grinding assembly 55 is fixed to the lower end of the vertical shaft 53, and the conical grinding assembly 55 is located inside the conical tank 51. Multiple pulverizing blade assemblies 54 are fixed at equal intervals on the vertical shaft 53, and all pulverizing blade assemblies 54 are located at the upper end of the conical grinding assembly 55. A pulverizing motor assembly 52 is connected to the upper end of the vertical shaft 53 extending to the conical tank 51, and the pulverizing motor assembly 52 is fixedly connected to the conical tank 51. A second electrically controlled valve discharge pipe 56 is fixed to the lower end of the conical tank 51, and the second electrically controlled valve discharge pipe 56 is connected to the mixing tank assembly 6. The distance between the conical grinding assembly 55 and the inner wall of the conical tank 51 gradually decreases from top to bottom. The pulverizing motor assembly 52 can drive the vertical shaft 53 to rotate, and the rotation of the vertical shaft 53 can drive the pulverizing blade assemblies 54 and the conical grinding assembly 55 to rotate. The dried tea waste is cut by the rotating pulverizing blade assembly 54, and the cut tea waste enters between the conical grinding assembly 55 and the conical jar 51 for grinding.

[0052] The upper end of the conical grinding component 55 is conical, meaning that the tea waste falling on the upper end also enters between the conical grinding component 55 and the conical tank 51 under the rotation of the conical grinding component 55. At the same time, by reducing the distance, a fine grinding effect is achieved, so that the tea waste is completely broken down, which helps the subsequent precipitation of dye substances, thereby improving the quality of dye preparation.

[0053] Meanwhile, the conical tank 51 is connected to the ethanol solution supply component 4, which can control the ethanol solution in the ethanol solution supply component 4 to enter the conical tank 51, and can wash the abrasive on the inner wall of the conical tank 51 and the side wall of the conical grinding component 55, causing the material in the conical tank 51 to fall.

[0054] Furthermore, during discharge, the pulverizing motor assembly 52 continues to rotate, enabling continuous grinding. Simultaneously, it allows the ethanol solution to fully contact the inner wall of the conical tank 51 and the conical grinding assembly 55, improving the quality of rinsing and achieving a comprehensive discharge effect.

[0055] In this embodiment, the mixing tank assembly 6 includes a mixing tank 61. A mixing mechanism is disposed on the mixing tank 61. An internal gear ring 66 is rotatably fitted onto the top of the mixing tank 61. A scraper 65 is fixed to the lower end of the internal gear ring 66, and the scraper 65 abuts against the side wall of the internal gear ring 66. A stirring motor assembly 62 is mounted on the mixing tank 61, and the output end of the stirring motor assembly 62 extends into the mixing tank 61. A gear 63 is fixed to the end of the output shaft of the stirring motor assembly 62, and the gear 63 meshes with the internal gear ring 66. A stirring element 64 is fixed to the lower end of the gear 63. An electrically controlled valve pipe 7 is disposed through the lower end of the mixing tank 61. The mixing tank 61 is designed with a conical bottom to facilitate rapid output of the mixture inside. The tank material in this invention can be stainless steel, which helps to extend the service life of the equipment and facilitates cleaning.

[0056] The stirring motor assembly 62 can drive the gear component 63 to rotate. Through the meshing of the gear component 63 and the internal gear ring component 66, the internal gear ring component 66 can rotate. The rotation of the internal gear ring component 66 can drive the scraper component 65 to rotate. The scraper component 65 can rotate outside the inner wall of the mixing tank 61 to prevent material from adhering to the inner wall of the mixing tank 61. Furthermore, the rotation of the scraper component 65 can stir the grinding material and ethanol solution inside the mixing tank 61.

[0057] The gear 63 can drive the stirring component 64 to rotate, which can improve the quality of stirring. Moreover, during the preparation, the stirring component 64 can be eccentrically installed at the lower end of the gear 63. When the gear 63 rotates, the stirring component 64 can rotate around the axis of the gear 63, which can also fully stir and improve the mixing quality.

[0058] In this embodiment, the filter tank assembly 8 includes a storage tank 81, within which a filter screen 83 is installed. An auger cleaning assembly 82 is disposed through the lower end of the storage tank 81, positioned above the filter screen 83. Another electrically controlled valve fitting 7 is disposed through the lower end of the storage tank 81. The filter screen 83 is made of stainless steel and has a V-shaped structure with an arc-shaped lower end to align with the auger component within the auger cleaning assembly 82, allowing the auger to directionally transport impurities adhering to the bottom of the filter screen 83 during rotation.

[0059] Meanwhile, the V-shaped design of the filter screen 83 helps to transport impurities to the bottom during filtration. That is, under the flushing action of the liquid, most impurities will flow down along the inclined wall of the filter screen 83, and a few will adhere to the side wall of the filter screen 83. These residual parts will not affect subsequent filtration.

[0060] The auger cleaning assembly 82 consists of a pipe fitting, an auger component, a motor, and a pipe fitting with an electrically controlled valve that runs through its lower end. The pipe fitting and the storage tank 81 are connected but do not extend into the storage tank 81. The auger component extends into the storage tank 81 and is located at the bottom of the filter screen 83. The motor and the auger component are connected for easy control by the operator. The motor drives the auger component to rotate, causing impurities on the filter screen 83 to move towards the pipe fitting for discharge through the electrically controlled valve.

[0061] This invention also proposes a method for preparing eco-dyes based on tea waste, applicable to the aforementioned eco-dye preparation device based on tea waste, comprising the following steps: S1. Tea waste cleaning: Add clean water to the cleaning tank 11, collect tea waste and pour it onto the input plate 12. The tea waste enters the cleaning tank 11. Under the action of the liquid supply component 14, the clean water impacts the tea leaves in the cleaning tank 11 through the spray plate component 13 to clean the tea leaves. The aeration component 16 introduces gas into the cleaning tank 11, causing the clean water in the cleaning tank 11 to churn, improving the cleaning quality of the tea leaves. At the same time, the tea leaves move towards the conveyor belt component 18. S2, scooping and draining: The conveyor belt assembly 18 rotates, scooping the tea waste in the washing tank 11 onto the side of the conveyor belt assembly 18 near the spray plate assembly 13, while simultaneously driving the tea waste to rise, and the water on the tea waste can be discharged through the conveyor belt assembly 18. S3. Tea waste drying: The cleaned tea waste enters the conveyor frame assembly 21 along the second screen plate 23 via the conveyor belt assembly 18. The two electric heating components 26 are activated to increase the temperature inside the conveyor frame assembly 21. At the same time, air can be drawn from one side of the first screen plate 22 and the third screen plate 24 through the second exhaust pipe 34 and the first exhaust pipe 32, so that the tea waste enters the conveyor frame assembly 21. Meanwhile, the gas enters the conveyor frame assembly 21 from the other side of the second screen plate 23. Some of the gas enters the conveyor frame assembly 21 through the conveyor belt assembly 18, improving the draining efficiency of the tea waste on the conveyor belt assembly 18. Moreover, the extracted gas enters the diversion pipe 19 through the air pump assembly 31 and the air delivery pipe 33, so that the tea waste can be aerated and cleaned in the cleaning tank 11 through the aeration assembly 16. The automatic sealing component 25 controls the amount of tea waste entering the crushing tank component 5; S4. Tea waste crushing and grinding: The automatic sealing component 25 operates to allow tea waste to enter the conical tank 51. The crushing motor component 52 drives the crushing blade component 54 and the conical grinding component 55 on the vertical shaft component 53 to rotate. The crushing blade component 54 crushes the tea waste. The crushed material enters the conical grinding component 55 and the second electric control valve discharge pipe 56 for grinding. S5. Rinsing and mixing: Control the grinding time and control the ethanol solution supply component 4 to rinse the inside of the grinding tank component 5. At the same time, open the second electric control valve discharge pipe 56 so that the grinding material in the grinding tank component 5 and the ethanol material flowing out of the ethanol solution supply component 4 enter the mixing tank 61 together. During rinsing, the grinding motor component 52 operates to improve the rinsing quality. S6. Thorough mixing: The stirring motor assembly 62 drives the gear component 63 to rotate, and the gear component 63 causes the internal gear ring component 66 to drive the scraper component 65 to rotate, preventing the abrasive material from adhering to the inner wall of the mixing tank 61. At the same time, the gear component 63 drives the stirring component 64 to rotate, performing initial mixing. S7. Sedimentation and filtration: The electrically controlled valve 7 connected to the mixing tank assembly 6 is opened, allowing the mixed material to enter the filter tank assembly 8, be filtered through the filter screen 83, and have the filtered impurities discharged in a directional manner through the screw conveyor cleaning assembly 82, so as to avoid blockage and failure to filter in the storage tank 81. S8. Obtaining dye: The filtrate enters the electrothermal distillation assembly 9 through the electrically controlled valve 7 at the lower end of the filter tank assembly 8. The electrothermal distillation assembly 9 is started to distill, and the temperature inside the electrothermal distillation assembly 9 is controlled to evaporate the ethanol and obtain the dye solution.

[0062] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An eco-friendly dye preparation device based on tea waste, comprising a cleaning component (1), characterized in that: One side of the cleaning component (1) is connected to an electric heating drying component (2), and an air extraction component (3) is installed between the electric heating drying component (2) and the cleaning component (1). The lower end of the electric heating drying component (2) is provided with a pulverizing tank component (5), the upper side of the pulverizing tank component (5) is provided with an ethanol solution supply component (4), the lower end of the pulverizing tank component (5) is provided with a stirring tank component (6), and the lower end of the stirring tank component (6) is provided with a filter tank component (8) and an electric heating distillation component (9) in sequence. The lower ends of both the stirring tank assembly (6) and the filter tank assembly (8) are provided with electrically controlled valve fittings (7), and the lower ends of the two electrically controlled valve fittings (7) are respectively provided at the upper ends of the filter tank assembly (8) and the electrothermal distillation assembly (9). The cleaning assembly (1) is provided with a cleaning tank (11), and the cleaning tank (11) is provided with a cleaning mechanism and a retrieval mechanism. The retrieval mechanism is connected to the electric heating drying assembly (2). The electric heating drying assembly (2) is provided with a conveyor frame assembly (21), and the conveyor frame assembly (21) is provided with a drying mechanism and an output mechanism. The output mechanism is located at the upper end of the crushing tank assembly (5), and the drying mechanism and the retrieval mechanism are connected. The pulverizing tank assembly (5) is provided with a conical tank (51), the conical tank (51) is provided with a grinding and pulverizing mechanism, and the stirring tank assembly (6) is provided with a stirring and mixing mechanism; The air extraction component (3) is connected to the cleaning mechanism and the drying mechanism.

2. The eco-friendly dye preparation device based on tea waste according to claim 1, characterized in that: The cleaning mechanism includes a spray plate assembly (13) installed in the middle of the upper part of the cleaning tank (11). A liquid supply assembly (14) is installed on the spray plate assembly (13). The retrieval mechanism is installed through the cleaning tank (11). Multiple diversion pipes (19) are provided at equal intervals at the bottom of the cleaning tank (11). Multiple aeration components (16) are provided at equal intervals on the diversion pipes (19). One end of the multiple diversion pipes (19) is connected to an air supply pipe (15). The air supply pipe (15) is connected to the air extraction assembly (3).

3. The eco-friendly dye preparation device based on tea waste according to claim 2, characterized in that: The salvage mechanism includes a conveyor belt assembly (18) that runs through the cleaning tank (11). The conveyor belt assembly (18) is inclined and is located at the upper end of the aeration assembly (16). The spray plate assembly (13) is bent and the inclined end of the spray plate assembly (13) corresponds to the conveyor belt assembly (18). The lower end of the cleaning tank (11) is provided with a first electrically controlled valve discharge pipe (17). An input plate (12) is installed on the end of the cleaning tank (11) away from the conveyor belt assembly (18).

4. The eco-friendly dye preparation device based on tea waste according to claim 3, characterized in that: The drying mechanism includes two electric heating components (26) installed on both sides of the conveyor frame assembly (21). The electric heating component (26) located at the upper end is installed on the inclined end of the conveyor frame assembly (21). A second screen plate (23) is fixed on the inclined end of the conveyor frame assembly (21). The upper ends of the conveyor frame assembly (21) and the second screen plate (23) are both connected to the retrieval mechanism. The upper and lower ends of the conveyor frame assembly (21) away from the retrieval mechanism are respectively fixed with a first screen plate (22) and a third screen plate (24). The first screen plate (22) and the third screen plate (24) are both inclined. The first screen plate (22) is located at the inclined end of the second screen plate (23). The output mechanism is connected to the third sieve plate (24); The electric heating assembly (26) located at the lower end is disposed between the first screen plate (22) and the third screen plate (24).

5. The eco-friendly dye preparation device based on tea waste according to claim 4, characterized in that: The output mechanism includes an automatic closing assembly (25) installed at the bottom of the conveyor frame assembly (21), the automatic closing assembly (25) being disposed at the lower end of the third screen plate (24); The lower end of the conveyor assembly (21) and the conical tank (51) are connected through each other, and the automatic sealing assembly (25) is located at the upper end of the conical tank (51).

6. The eco-friendly dye preparation device based on tea waste according to claim 5, characterized in that: The air extraction assembly (3) includes an air extraction pump assembly (31), and an air delivery pipe (33) is fixed at the air delivery end of the air extraction pump assembly (31). The air delivery pipe (33) passes through the cleaning tank (11) and extends into the cleaning tank (11). The cleaning tank (11) is connected to the cleaning mechanism. The suction end of the suction pump assembly (31) is connected to a first suction pipe (32), and a second suction pipe (34) is provided through the upper end of the first suction pipe (32). Both the second suction pipe (34) and the first suction pipe (32) are connected to the drying mechanism.

7. The eco-friendly dye preparation device based on tea waste according to claim 6, characterized in that: The grinding and pulverizing mechanism includes a vertical shaft (53) that runs through the conical tank (51). A conical grinding assembly (55) is fixed to the lower end of the vertical shaft (53). The conical grinding assembly (55) is located inside the conical tank (51). Multiple pulverizing blade assemblies (54) are fixed at equal intervals on the vertical shaft (53). The multiple pulverizing blade assemblies (54) are all located at the upper end of the conical grinding assembly (55). The vertical shaft (53) extends to the upper end of the conical tank (51) and is connected to a pulverizing motor assembly (52). The pulverizing motor assembly (52) and the conical tank (51) are fixedly connected. The lower end of the conical tank (51) is fixed with a second electrically controlled valve discharge pipe (56), which is connected to the mixing tank assembly (6). The distance between the conical grinding assembly (55) and the inner wall of the conical jar (51) gradually decreases from top to bottom.

8. The eco-friendly dye preparation device based on tea waste according to claim 7, characterized in that: The mixing tank assembly (6) includes a mixing tank (61), and the mixing mechanism is disposed on the mixing tank (61). An internal gear ring (66) is rotatably sleeved on the top of the mixing tank (61), and a scraper (65) is fixed at the lower end of the internal gear ring (66). The scraper (65) and the side wall inside the internal gear ring (66) abut against each other. A stirring motor assembly (62) is installed on the mixing tank (61). The output end of the stirring motor assembly (62) extends into the mixing tank (61). A gear (63) is fixed to the end of the output shaft of the stirring motor assembly (62). The gear (63) meshes with an internal gear ring (66). A stirring component (64) is fixed to the lower end of the gear (63). One of the electrically controlled valve fittings (7) is installed through the lower end of the mixing tank (61).

9. The ecological dye preparation device based on tea waste according to claim 8, characterized in that: The filter tank assembly (8) includes a storage tank (81), a filter screen (83) is installed inside the storage tank (81), and the auger cleaning assembly (82) is disposed through one side of the lower end of the storage tank (81) and disposed at the upper end of the filter screen (83). Another electrically controlled valve fitting (7) is installed through the lower end of the storage tank (81).

10. A method for preparing an eco-dye based on tea waste, applicable to the eco-dye preparation apparatus based on tea waste according to claims 1-9 above, characterized in that, Includes the following steps: S1, Tea waste cleaning: Add clean water to the cleaning tank (11), collect the tea waste and pour it onto the input plate (12). The tea waste enters the cleaning tank (11). The clean water, under the action of the liquid supply component (14), impacts the tea leaves in the cleaning tank (11) through the spray plate component (13) to clean the tea leaves. The gas is introduced into the cleaning tank (11) through the aeration component (16), causing the clean water in the cleaning tank (11) to churn and improve the cleaning quality of the tea leaves. The tea leaves move towards the conveyor belt component (18). S2, scooping and draining: The conveyor belt assembly (18) rotates, scooping the tea waste in the washing tank (11) onto the side of the conveyor belt assembly (18) close to the spray plate assembly (13), while driving the tea waste to rise, and the water on the tea waste can be discharged through the conveyor belt assembly (18). S3, Tea Waste Drying: The cleaned tea waste enters the conveyor frame assembly (21) through the conveyor belt assembly (18) along the second screen plate (23). The two electric heating components (26) are activated to raise the temperature inside the conveyor frame assembly (21). At the same time, air can be drawn from one side of the first screen plate (22) and the third screen plate (24) through the second exhaust pipe (34) and the first exhaust pipe (32) so that the tea waste enters the conveyor frame assembly (21). At the same time, the gas enters the conveyor frame assembly (21) from the other side of the second screen plate (23). Some of the gas enters the conveyor frame assembly (21) through the conveyor belt assembly (18), improving the draining efficiency of the tea waste on the conveyor belt assembly (18). The extracted gas enters the diversion pipe (19) through the air pump assembly (31) and the air delivery pipe (33) so that the tea waste can be aerated and cleaned in the cleaning tank (11) through the aeration assembly (16); The automatic sealing component (25) controls the amount of tea waste entering the crushing tank component (5); S4, Tea waste crushing and grinding: The automatic sealing component (25) operates to allow the tea waste to enter the conical tank (51). The crushing motor component (52) drives the crushing blade component (54) and the conical grinding component (55) on the vertical shaft (53) to rotate. The tea waste is crushed by the crushing blade component (54). The crushed material enters the conical grinding component (55) and the second electric control valve discharge pipe (56) for grinding. S5. Rinsing and mixing: Control the grinding time, control the ethanol solution supply component (4) to rinse the inside of the grinding tank component (5), and at the same time open the second electric control valve discharge pipe (56) so that the grinding material in the grinding tank component (5) and the ethanol material flowing out of the ethanol solution supply component (4) enter the mixing tank (61) together. During rinsing, the grinding motor component (52) operates to improve the rinsing quality. S6. Thorough mixing: The stirring motor assembly (62) drives the gear component (63) to rotate, and the gear component (63) causes the internal gear ring component (66) to drive the scraper component (65) to rotate, so as to prevent the abrasive material from adhering to the inner wall of the mixing tank (61). At the same time, the gear component (63) drives the stirring component (64) to rotate, and performs preliminary mixing. S7, Sedimentation and Filtration: The electrically controlled valve fitting (7) connected to the mixing tank assembly (6) is opened, allowing the mixing material to enter the filter tank assembly (8), be filtered through the filter screen (83), and the filtered impurities are directionally discharged through the screw conveyor cleaning assembly (82) to avoid blockage and filtration failure in the storage tank (81); S8. Obtaining dye: The filtrate enters the electrothermal distillation assembly (9) through the electrically controlled valve fitting (7) at the lower end of the filter tank assembly (8), the electrothermal distillation assembly (9) is started to distill, the temperature inside the electrothermal distillation assembly (9) is controlled to evaporate the ethanol and obtain the dye solution.

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