Gardenia powder drying device for preparing gardenia yellow pigment

Abstract

The invention discloses a gardenia powder drying device for preparing gardenia yellow pigment, and relates to the technical field of drying equipment.The gardenia powder drying device comprises a support, a drying cylinder is arranged above the support and dries gardenia powder through microwave heating, one end of the drying cylinder is in transmission connection with a driving mechanism, and the other end of the drying cylinder is in transmission connection with an exhaust mechanism; the driving mechanism and the exhaust mechanism are fixedly installed at the two ends of the support respectively, a vertical plate is fixedly connected to the middle of the support, a protruding block is fixedly connected to the side wall of the top of the vertical plate, and a surrounding groove is formed in the outer side of the drying cylinder and matched with the protruding block. The rapid and uniform drying effect is achieved through microwave heating. And the rotary drying cylinder is beneficial to more uniform heating of the gardenia powder, so that the drying efficiency is improved. The exhaust mechanism effectively exhausts humid air, and the stability of the dry environment is kept.

Description

Technical Field

[0001] The invention relates to the technical field of drying equipment, in particular to a gardenia powder drying device for preparing gardenia yellow pigment. Background Art

[0002] Gardenia, also known as yellow gardenia, mountain gardenia, and white toad, is the fruit of the Rubiaceae plant Gardenia. The fruit of Gardenia is a traditional Chinese medicine with the effects of protecting the liver, promoting bile secretion, lowering blood pressure, calming, stopping bleeding, and reducing swelling. It is commonly used in clinical Chinese medicine to treat icteric hepatitis, sprains, hypertension, diabetes, etc. Gardenia yellow pigment is a pure natural plant pigment. Because of its excellent stability and water solubility, the market demand is increasing. Usually, the gardenia powder needs to be dried in the preparation of gardenia yellow pigment.

[0003] The existing drying equipment does not turn the gardenia powder evenly, resulting in incomplete drying. The drying time can only be prolonged, which reduces work efficiency.

[0004] Therefore, there is an urgent need for a gardenia powder drying device for preparing gardenia yellow pigment to solve the problems existing in the above-mentioned prior art. Summary of the Invention

[0005] The purpose of the present invention is to provide a gardenia powder drying device for preparing gardenia yellow pigment, so as to solve the problems existing in the prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following solution: The present invention provides a gardenia powder drying device for preparing gardenia yellow pigment, comprising a bracket, a drying cylinder is provided above the bracket, the drying cylinder dries the gardenia powder by microwave heating, one end of the drying cylinder is transmission-connected to a driving mechanism, and the other end of the drying cylinder is transmission-connected to an exhaust mechanism, the driving mechanism and the exhaust mechanism are respectively fixedly mounted on both ends of the bracket, the middle part of the bracket is fixedly connected to a vertical plate, the top side wall of the vertical plate is fixedly connected to a protrusion, a surrounding groove is provided on the outside of the drying cylinder, and the protrusion is adapted to the surrounding groove.

[0007] Preferably, the exhaust mechanism includes a fixed cylinder fixedly connected to the bracket, a connecting shaft is slidably connected in the fixed cylinder, the end of the connecting shaft is fixedly connected to the drying cylinder, an exhaust pipe is installed in the connecting shaft, one end of the exhaust pipe is connected to the drying cylinder, and the other end of the exhaust pipe passes through the bracket and is slidably connected to the bracket.

[0008] Preferably, a valve is installed at the end of the exhaust pipe close to the drying cylinder, and the other end of the exhaust pipe is sealed.

[0009] Preferably, a second limiting groove is symmetrically provided in the fixing cylinder, a second limiting block is slidably connected in the second limiting groove, and the second limiting block is fixedly connected to the outer wall of the connecting shaft.

[0010] Preferably, a hose is fixedly connected to and communicated with the exhaust pipe, and the bottom of the hose is communicated with a waste heat recovery device, and the waste heat recovery device is used to collect heat in the exhausted humid air.

[0011] Preferably, the driving mechanism includes a motor fixedly connected to the bracket, the output shaft of the motor is fixedly connected to a sleeve, a transmission shaft is slidably connected in the sleeve, and the end of the transmission shaft is fixedly connected to the drying cylinder and drives the drying cylinder to rotate.

[0012] Preferably, a first limiting groove is symmetrically provided in the sleeve, a first limiting block is slidably connected in the first limiting groove, and the first limiting block is fixedly connected to the outer wall of the transmission shaft.

[0013] Preferably, a partition is fixedly connected inside the drying cylinder, and knocking components are symmetrically provided on the side walls of the partition. A first spur gear is transmission-connected between the two knocking components, and the first spur gear is fixedly connected to the output shaft of the driving motor, and the driving motor is fixedly connected to the inner wall of the drying cylinder.

[0014] Preferably, the knocking assembly includes a second spur gear meshed with the first spur gear, the center of the second spur gear is fixedly connected to a fixed shaft, one end of the fixed shaft is rotatably connected to the inner wall of the drying cylinder, the other end of the fixed shaft is fixedly connected to the first bevel gear, the fixed shaft is fixedly installed in the drying cylinder through a limit frame, the first bevel gear is meshed with the second bevel gear, the center of the second bevel gear is fixedly connected to a central shaft, both ends of the central shaft are connected to the rotating wheel on the inner wall of the drying cylinder, a cam is fixedly connected to the central shaft, the side wall of the cam is in contact with a connecting rod, and the end of the connecting rod away from the cam is fixedly connected to a hammer block, and the hammer block is used to knock on the partition to shake off the adhered gardenia powder.

[0015] Preferably, a limiting cylinder is sleeved on the outside of the connecting rod, and the limiting cylinder is fixedly connected to the inner wall of the drying cylinder through a mounting bracket, and a support plate is symmetrically fixed inside the limiting cylinder, and the connecting rod passes through the support plate and is slidingly connected to the support plate, and a spring is sleeved on the outside of the connecting rod, and a baffle is fixed on the outside of the connecting rod, one end of the spring is fixedly connected to the baffle, and the other end of the spring is fixed to the support plate close to the side of the partition.

[0016] The present invention discloses the following technical effects: the present invention is mainly composed of a bracket, a drying cylinder, a microwave heating system, a driving mechanism and an exhaust mechanism. The bracket serves as a supporting structure, and the drying cylinder dries the gardenia powder through microwave heating. The driving mechanism is responsible for driving the drying cylinder to rotate to ensure that the gardenia powder is evenly heated. The exhaust mechanism is used to discharge the moist air generated during the drying process. The design of the vertical plate and the protrusion allows the drying cylinder to move while rotating, ensuring that the gardenia powder is evenly heated. The present invention uses microwave heating to achieve a fast and uniform drying effect. The rotating drying cylinder helps the gardenia powder to be heated more evenly, thereby improving the drying efficiency. The exhaust mechanism effectively discharges the moist air and maintains the stability of the drying environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of this application. The exemplary embodiments and descriptions of this application are intended to explain this application and do not constitute an improper limitation on this application. In the accompanying drawings:

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 It is a side view of the vertical plate of the present invention;

[0020] Figure 3 This is a schematic diagram of the connection between the hose and the exhaust pipe of the present invention;

[0021] Figure 4 Schematic diagram of the internal structure of the sleeve of the present invention;

[0022] Figure 5 This is a schematic diagram of the internal structure of the fixed cylinder of the present invention;

[0023] Figure 6 Schematic diagram of the internal structure of the drying cylinder of the present invention;

[0024] Figure 7 This is a schematic diagram of the structure of the knocking assembly of the present invention when viewed from above;

[0025] In the figure: 1. bracket; 2. motor; 3. vertical plate; 4. sleeve; 5. transmission shaft; 6. drying cylinder; 7. surrounding groove; 8. connecting shaft; 9. fixed cylinder; 10. exhaust pipe; 11. bump; 12. hose; 13. waste heat recovery equipment; 14. first limiting groove; 15. first limiting block; 16. second limiting groove; 17. second limiting block; 18. valve; 19. first spur gear; 20. fixed shaft; 21. second spur gear; 22. first bevel gear; 23. second bevel gear; 24. hammer block; 25. partition; 26. limiting cylinder; 27. connecting rod; 28. cam; 29. center shaft; 30. spring. DETAILED DESCRIPTION

[0026] Gardenia yellow pigment is a natural pigment extracted from the fruit of the gardenia jasmine plant. Its main components are crocin and crocetin. Gardenia yellow powder products are orange-yellow to orange-red, extract products are yellow-brown, and liquid products are yellow-brown to orange-red. They are highly safe and nutritionally valuable. Benefits: Coloring: Gardenia yellow pigment has excellent dyeing properties for proteins and starches. It can be widely used as a colorant in various foods, including pastries, candies, flour, beverages, jellies, biscuits, and ice cream, to improve their color and appearance. Choleretic and jaundice-reducing: Gardenia yellow can promote bile secretion and increase bile flow, helping the liver excrete bilirubin. It can alleviate jaundice symptoms caused by diseases such as icteric hepatitis and can be used as an adjunct treatment for liver diseases. Antioxidant: Gardenia yellow is rich in various antioxidants that effectively scavenge free radicals in the body, reducing cellular damage caused by oxidative stress. This helps delay aging and prevent various chronic diseases caused by oxidative stress, such as cardiovascular disease and neurodegenerative diseases. Anti-inflammatory effects: Gardenia yellow has certain anti-inflammatory activity, can inhibit the release of inflammatory mediators, and alleviate inflammatory responses. It has an auxiliary therapeutic effect on some inflammatory-related diseases, such as gastritis and enteritis. Improve microcirculation: Gardenia yellow can promote blood circulation and improve the microcirculation of local tissues. It has a certain preventive and alleviating effect on some diseases caused by poor blood circulation, such as frostbite and varicose veins of the lower limbs. Antibacterial effects: Gardenia yellow has an inhibitory effect on some bacteria and fungi. It can be used to preserve food and extend its shelf life. At the same time, it can also prevent diseases caused by microbial infections to a certain extent. Gardenia yellow pigment not only has excellent coloring properties but also possesses various biologically active effects. It has broad application prospects in food, pharmaceuticals, and health supplements. However, although gardenia yellow pigment is a natural pigment and is relatively safe, it should still be added in moderation during use to avoid the burden that excessive intake may cause to the body.

[0027] Gardenia yellow pigment has the following characteristics: excellent stability and strong tinting power. Gardenia yellow pigment is resistant to reduction and microorganisms, lightfast, and heat-resistant. Its color remains essentially unchanged within a pH range of 4-11. It is stable to metal ions and exhibits excellent dyeing properties for starch and protein. Gardenia yellow pigment is also safe. Gardenia has been used in China for thousands of years. Locals use it to make tea and decoct it with malt, three-dregs of rice, and chrysanthemum as a heat-relief beverage. It also has nutritional benefits. Crocin and crocetin, the main components of gardenia yellow pigment, are rare, water-soluble carotenoids that are easily absorbed by the human body and converted into vitamin A. This supplement serves as a nutritional colorant. Gardenia is a commonly used traditional Chinese medicine. Gardenia yellow pigment has similar effects to gardenia, clearing heat and fire, cooling blood and promoting bile secretion, and lowering cholesterol. It possesses several health benefits, making it a natural plant pigment that combines coloring, nutrition, and health benefits.

[0028] Preparation of Gardenia Yellow Pigment: Raw Material Processing: Gardenia dried fruit is air-dried or mechanically dried, then crushed and sieved to obtain gardenia dried fruit powder. The mesh size of the sieve can be adjusted as needed, generally between 10 and 20 mesh. Degreasing: The gardenia dried fruit powder is degreased using an organic solvent (such as petroleum ether) to remove the oil. The degreased filter residue is used for subsequent pigment extraction. Pigment Extraction: Water Extraction: The defatted gardenia dried fruit powder is soaked in water and the pigment is extracted through crushing, extraction, filtration, and concentration. However, the pigment obtained by this method is of low purity, poor appearance quality, and difficult to purify. Organic Solvent Extraction: Gardenia yellow pigment is extracted at room temperature using an alcohol-water mixture (such as a 50% methanol-water mixture). This method provides good extraction results, but requires careful consideration of solvent selection and recovery. Microwave Extraction: The gardenia yellow pigment is rapidly dissolved from the raw material using microwave radiation heating. The pigment extraction rate can be increased by optimizing process conditions (such as extraction power, extraction time, and material-liquid ratio). Ultrasonic extraction: Utilizes the cavitation, mechanical, and thermal effects of ultrasound to accelerate the dissolution of gardenia yellow pigment. This method offers advantages such as high extraction yield, high color value, high purity, and reduced raw materials and time. Supercritical extraction: Using supercritical carbon dioxide as an extractant, gardenia yellow pigment is extracted under high pressure and high temperature. This method can produce a high-purity pigment, but requires significant equipment investment and demanding operating conditions. Separation and purification: The extracted pigment solution is subjected to column chromatography, using different eluents (such as deionized water and ethanol) to sequentially elute impurities and pigment components. By adjusting the eluent concentration and elution conditions, a higher-purity gardenia yellow pigment can be obtained. Drying and packaging: The separated and purified gardenia yellow pigment is dried to remove moisture and residual organic solvents. The dried pigment can be packaged and stored for subsequent use.

[0029] Specific preparation method: Grind the dried gardenia fruit and sieve it to obtain the dried gardenia fruit powder. The dried gardenia fruit powder is placed in a container and degreased with an organic solvent (such as petroleum ether) to obtain a defatted filter residue. The defatted filter residue is extracted with an alcohol-water mixed solvent (such as a 50% methanol-water mixed solvent) to obtain a pigment extract. The pigment extract is filtered and concentrated to obtain a concentrated pigment solution. The concentrated pigment solution is subjected to column chromatography separation, using deionized water and different concentrations of ethanol as eluents to sequentially elute impurities and pigment components. The eluted pigment solution is collected and dried to obtain the gardenia yellow pigment product. Note: During the preparation process, attention should be paid to the selection and recovery of solvents to avoid environmental pollution. The extraction and separation conditions need to be optimized according to the specific situation to improve the extraction rate and purity of the pigment. The temperature and humidity conditions must be strictly controlled during the drying and packaging processes to ensure the quality and stability of the product.

[0030] Gardenia Powder Drying Equipment: Belt Dryer: Advantages: Suitable for large-scale production, particularly suitable for difficult-to-dry materials with slow drying rates. The equipment features a compact structure, small footprint, simple operation, and easy maintenance. Different hot air circulation drying modes can be designed based on the drying characteristics of the material, offering the advantages of high efficiency, energy saving, and ease of management. Disadvantages: For particularly viscous or caking materials, additional pretreatment or mixing equipment may be required. Drying temperature and time require precise control to avoid overheating and uneven drying. Air-to-Air Heat Pump Dryer: Advantages: Utilizes electrical separation technology, resulting in zero emissions and environmental friendliness. A PLC touchscreen central controller with time-programmable drying and dehumidification functions ensures material does not deteriorate or oxidize during the drying process, minimizing nutrient loss. High drying efficiency, virtually complete energy recovery, and consistent drying results are achieved regardless of ambient temperature and humidity. Disadvantages: Relatively high equipment cost and a large initial investment. Regular maintenance and servicing are required to ensure proper operation and extend the equipment's life. Spray Dryer: Advantages: Suitable for producing powdered and granular solid products from suspensions, solutions, emulsions, and pasty liquid raw materials. The drying speed is fast, and the surface area of the liquid is greatly increased after atomization, and a large amount of water is evaporated instantly, which is particularly suitable for drying heat-sensitive materials. The product has good uniformity, fluidity and solubility, high purity and good quality. Disadvantages: The equipment is complex and requires professional personnel to operate and maintain. For materials containing a large amount of solid particles or high viscosity, pretreatment or adjustment of process parameters may be required. Vacuum dryer: Advantages: It can dry materials quickly at low temperatures to avoid damage to the materials caused by high temperatures. Disadvantages: The equipment cost is relatively high, and the vacuum system needs to be maintained regularly. Boiling dryer: Advantages: It is suitable for drying granular materials, with high drying efficiency and good material fluidity. Disadvantages: For materials that are easy to stick to the wall or agglomerate, additional stirring or vibration equipment may be required. Paddle dryer: Advantages: It is suitable for drying viscous or pasty materials. The materials are fully stirred during the drying process and dry evenly. Disadvantages: The equipment structure is relatively complex and the maintenance cost is high.

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0032] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] Reference Figure 1-Figure 7As shown, this embodiment provides a gardenia powder drying device for preparing gardenia yellow pigment, including a bracket 1, a drying cylinder 6 is provided above the bracket 1, and the drying cylinder 6 dries the gardenia powder by microwave heating. One end of the drying cylinder 6 is connected to a driving mechanism, and the other end of the drying cylinder 6 is connected to an exhaust mechanism. The driving mechanism and the exhaust mechanism are respectively fixedly mounted on both ends of the bracket 1, a vertical plate 3 is fixedly connected to the middle of the bracket 1, and a protrusion 11 is fixedly connected to the top side wall of the vertical plate 3. A surrounding groove 7 is provided on the outside of the drying cylinder 6, and the protrusion 11 is adapted to the surrounding groove 7.

[0034] The present invention mainly consists of a bracket 1, a drying cylinder 6, a microwave heating system, a drive mechanism and an exhaust mechanism. The bracket 1 serves as a supporting structure, and the drying cylinder 6 dries the gardenia powder through microwave heating. The drive mechanism is responsible for driving the drying cylinder 6 to rotate to ensure that the gardenia powder is evenly heated. The exhaust mechanism is used to exhaust the moist air generated during the drying process. The design of the vertical plate 3 and the protrusion 11 allows the drying cylinder 6 to rotate and move at the same time, ensuring that the gardenia powder is evenly heated. The present invention uses microwave heating to achieve a fast and uniform drying effect. The rotating drying cylinder 6 helps the gardenia powder to be heated more evenly, thereby improving the drying efficiency. The exhaust mechanism effectively exhausts the moist air and maintains the stability of the drying environment.

[0035] To further optimize the solution, the exhaust mechanism includes a fixed cylinder 9 fixedly connected to the bracket 1, a connecting shaft 8 is slidably connected inside the fixed cylinder 9, the end of the connecting shaft 8 is fixedly connected to the drying cylinder 6, an exhaust pipe 10 is installed inside the connecting shaft 8, one end of the exhaust pipe 10 is connected to the drying cylinder 6, and the other end of the exhaust pipe 10 passes through the bracket 1 and is slidably connected to the bracket 1. The exhaust mechanism is composed of a fixed cylinder 9, a connecting shaft 8, an exhaust pipe 10, etc. The connecting shaft 8 slides inside the fixed cylinder 9 and is fixedly connected to the drying cylinder 6. One end of the exhaust pipe 10 is connected to the drying cylinder 6, and the other end passes through the bracket 1 to achieve the discharge of wet air. The design of the sliding connection of the connecting shaft 8 and the fixed cylinder 9 enables the exhaust pipe 10 to move with the rotation of the drying cylinder 6 to keep the exhaust passage unobstructed. The design of the exhaust pipe 10 helps to discharge wet air in time to avoid affecting the drying effect.

[0036] As a further optimization, a valve 18 is installed at the end of the exhaust pipe 10 near the drying cylinder 6, while the other end of the exhaust pipe 10 is sealed. Valve 18 is installed at the end of the exhaust pipe 10 near the drying cylinder 6 to control the discharge of moist air. The design of valve 18 allows the user to adjust the amount of moist air discharged as needed, further controlling the drying process. This improves the flexibility and controllability of the device.

[0037] A further optimization scheme features symmetrical second limiting grooves 16 within the fixed cylinder 9. A second limiting block 17 is slidably connected within the second limiting grooves 16 and affixed to the outer wall of the connecting shaft 8. The symmetrical second limiting grooves 16 within the fixed cylinder 9 and the affixed second limiting block 17 to the outer wall of the connecting shaft 8 effectively limit and stabilize the connecting shaft 8. The design of the second limiting grooves 16 and second limiting block 17 effectively prevents the connecting shaft 8 from shifting and shaking during sliding, improving structural stability and ensuring smooth operation of the exhaust mechanism.

[0038] A further optimization solution features a hose 12 fixedly connected to and in communication with the exhaust pipe 10. The bottom of the hose 12 is connected to a waste heat recovery device 13, which collects heat from the exhausted humid air. The design of the waste heat recovery device 13 enables energy recovery and utilization, improving energy efficiency and reducing energy consumption and environmental pollution.

[0039] A further optimized solution includes a drive mechanism comprising a motor 2 fixedly connected to the bracket 1. The output shaft of the motor 2 is fixedly connected to a sleeve 4, within which a transmission shaft 5 is slidably connected. The end of the transmission shaft 5 is fixedly connected to the drying drum 6 and drives the drying drum 6 to rotate. The drive mechanism comprises the motor 2, sleeve 4, and transmission shaft 5. The output shaft of the motor 2 is fixedly connected to the sleeve 4, within which the transmission shaft 5 is slidably connected. The end of the transmission shaft 5 is fixedly connected to the drying drum 6, enabling the drying drum 6 to rotate. The design of the motor 2 and transmission shaft 5 enables the rotation of the drying drum 6, ensuring uniform heating of the gardenia powder. This improves drying efficiency and quality.

[0040] A further optimization scheme features symmetrical first limiting grooves 14 within the sleeve 4. A first limiting block 15 is slidably connected within the first limiting grooves 14 and affixed to the outer wall of the transmission shaft 5. The symmetrical first limiting grooves 14 within the sleeve 4 and the affixed first limiting block 15 to the outer wall of the transmission shaft 5 effectively limit and stabilize the transmission shaft 5. The design of the first limiting grooves 14 and the first limiting block 15 effectively prevents the transmission shaft 5 from shifting and shaking during rotation, improving structural stability and ensuring smooth operation of the drive mechanism.

[0041] To further optimize the solution, a partition 25 is fixedly connected inside the drying cylinder 6, and knocking assemblies are symmetrically arranged on the side walls of the partition 25. A first spur gear 19 is transmission-connected between the two knocking assemblies, and the first spur gear 19 is fixedly connected to the output shaft of the drive motor, and the drive motor is fixedly connected to the inner wall of the drying cylinder 6. The partition 25 is fixedly connected inside the drying cylinder 6, and knocking assemblies are symmetrically arranged on the side walls of the partition 25. The first spur gear 19 is transmission-connected between the knocking assemblies, and the first spur gear 19 is fixedly connected to the output shaft of the drive motor. The drive motor drives the knocking assembly to knock on the partition 25, shaking off the adhered gardenia powder. The design of the knocking assembly and the drive motor effectively solves the problem of gardenia powder adhering to the partition 25, thereby improving the drying efficiency and drying quality. The frequency and cost of manual cleaning are reduced.

[0042] A further optimized solution is that the knocking assembly includes a second spur gear 21 meshing with the first spur gear 19, the center of the second spur gear 21 is fixedly connected to a fixed shaft 20, one end of the fixed shaft 20 is rotatably connected to the inner wall of the drying cylinder 6, the other end of the fixed shaft 20 is fixedly connected to a first bevel gear 22, the fixed shaft 20 is fixedly installed in the drying cylinder 6 through a limit frame, the first bevel gear 22 is meshed with a second bevel gear 23, the center of the second bevel gear 23 is fixedly connected to a central shaft 29, both ends of the central shaft 29 are connected to the rotating wheel on the inner wall of the drying cylinder 6, a cam 28 is fixedly connected to the central shaft 29, the side wall of the cam 28 is in contact with a connecting rod 27, and the end of the connecting rod 27 away from the cam 28 is fixedly connected to a hammer block 24, which is used to knock on the partition 25 to shake off the adhered gardenia powder. The knocking assembly consists of the second spur gear 21, the fixed shaft 20, the first bevel gear 22, the second bevel gear 23, the central shaft 29, the cam 28, the connecting rod 27, the hammer block 24, etc. The drive motor rotates the first spur gear 19, which, through meshing, drives the second spur gear 21, first bevel gear 22, second bevel gear 23, center shaft 29, and cam 28. The rotation of cam 28 pushes connecting rod 27 and hammer 24 against partition 25. The complex transmission mechanism design enables precise control and efficient operation of the hammering assembly, ensuring effective vibration and drying of the gardenia powder.

[0043] To further optimize the solution, a limiting cylinder 26 is sleeved on the outside of the connecting rod 27. The limiting cylinder 26 is fixedly connected to the inner wall of the drying cylinder 6 through a mounting bracket. A support plate is symmetrically fixed inside the limiting cylinder 26. The connecting rod 27 passes through the support plate and is slidably connected to the support plate. A spring 30 is sleeved on the outside of the connecting rod 27. A baffle is fixed to the outside of the connecting rod 27. One end of the spring 30 is fixedly connected to the baffle, and the other end of the spring 30 is fixedly connected to the support plate on the side close to the partition 25. The limiting cylinder 26 and spring 30 are sleeved on the outside of the connecting rod 27 and fixedly connected to the inner wall of the drying cylinder 6 through a mounting bracket. The spring 30 provides elastic support for the connecting rod 27 and the hammer block 24, ensuring the stability and uniformity of the knocking force. The design of the limiting cylinder 26 and spring 30 effectively prevents the connecting rod 27 and the hammer block 24 from excessive shaking and damage during the knocking process, thereby improving the stability and durability of the structure. This ensures the long-term stable operation and efficient work of the knocking assembly.

[0044] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A gardenia powder drying device for preparing gardenia yellow pigment, characterized in that: The invention comprises a bracket (1), a drying cylinder (6) is provided above the bracket (1), the drying cylinder (6) dries the gardenia powder by microwave heating, one end of the drying cylinder (6) is connected to a driving mechanism, the other end of the drying cylinder (6) is connected to an exhaust mechanism, the driving mechanism and the exhaust mechanism are fixedly mounted on the two ends of the bracket (1), the middle of the bracket (1) is fixedly connected to a vertical plate (3), the top side wall of the vertical plate (3) is fixedly connected to a protrusion (11), the outer side of the drying cylinder (6) is provided with a surrounding groove (7), and the protrusion (11) is adapted to the surrounding groove (7).

2. The gardenia powder drying device for preparing gardenia yellow pigment according to claim 1, wherein: The exhaust mechanism comprises a fixed cylinder (9) fixedly connected to the bracket (1), a connecting shaft (8) slidably connected inside the fixed cylinder (9), an end of the connecting shaft (8) fixedly connected to the drying cylinder (6), an exhaust pipe (10) installed inside the connecting shaft (8), one end of the exhaust pipe (10) communicating with the drying cylinder (6), and the other end of the exhaust pipe (10) passing through the bracket (1) and slidably connected to the bracket (1).

3. The gardenia powder drying device for preparing gardenia yellow pigment according to claim 2, wherein: A valve (18) is installed at the end of the exhaust pipe (10) close to the drying cylinder (6), and the other end of the exhaust pipe (10) is sealed.

4. The gardenia powder drying device for preparing gardenia yellow pigment according to claim 2, wherein: A second limiting groove (16) is symmetrically provided in the fixing cylinder (9), a second limiting block (17) is slidably connected in the second limiting groove (16), and the second limiting block (17) is fixedly connected to the outer wall of the connecting shaft (8).

5. The gardenia powder drying device for preparing gardenia yellow pigment according to claim 2, characterized in that: A hose (12) is fixedly connected to and communicated with the exhaust pipe (10), and the bottom of the hose (12) is communicated with a waste heat recovery device (13), and the waste heat recovery device (13) is used to collect heat in the exhausted wet air.

6. The gardenia powder drying device for preparing gardenia yellow pigment according to claim 1, characterized in that: The driving mechanism comprises a motor (2) fixedly connected to the bracket (1); the output shaft of the motor (2) is fixedly connected to a sleeve (4); a transmission shaft (5) is slidably connected inside the sleeve (4); the end of the transmission shaft (5) is fixedly connected to the drying cylinder (6) and drives the drying cylinder (6) to rotate.

7. The gardenia powder drying device for preparing gardenia yellow pigment according to claim 6, characterized in that: A first limiting groove (14) is symmetrically provided in the sleeve (4), a first limiting block (15) is slidably connected in the first limiting groove (14), and the first limiting block (15) is fixedly connected to the outer wall of the transmission shaft (5).

8. The gardenia powder drying device for preparing gardenia yellow pigment according to claim 6, characterized in that: A partition (25) is fixedly connected inside the drying cylinder (6), and knocking assemblies are symmetrically arranged on the side walls of the partition (25). A first spur gear (19) is transmission-connected between the two knocking assemblies, and the first spur gear (19) is fixedly connected to the output shaft of a driving motor, and the driving motor is fixedly connected to the inner wall of the drying cylinder (6).

9. The gardenia powder drying device for preparing gardenia yellow pigment according to claim 8, characterized in that: The knocking assembly comprises a second spur gear (21) meshed with the first spur gear (19); a fixed shaft (20) is fixedly connected to the center of the second spur gear (21); one end of the fixed shaft (20) is rotatably connected to the inner wall of the drying cylinder (6); the other end of the fixed shaft (20) is fixedly connected to the first bevel gear (22); the fixed shaft (20) is fixedly installed in the drying cylinder (6) through a limiting frame; the first bevel gear (22) is meshed with the second bevel gear (23); the center of the second bevel gear (23) is fixedly connected to a central shaft (29); both ends of the central shaft (29) are connected to the rotating wheel on the inner wall of the drying cylinder (6); a cam (28) is fixedly connected to the central shaft (29); a side wall of the cam (28) contacts a connecting rod (27); an end of the connecting rod (27) away from the cam (28) is fixedly connected to a hammer block (24); the hammer block (24) is used to knock the partition (25) to shake off the adhered gardenia powder.

10. The gardenia powder drying device for preparing gardenia yellow pigment according to claim 9, characterized in that: A limiting cylinder (26) is sleeved on the outside of the connecting rod (27), and the limiting cylinder (26) is fixedly connected to the inner wall of the drying cylinder (6) through a mounting frame. A support plate is symmetrically fixed inside the limiting cylinder (26), and the connecting rod (27) passes through the support plate and is slidably connected to the support plate. A spring (30) is sleeved on the outside of the connecting rod (27), and a baffle is fixedly connected to the outside of the connecting rod (27). One end of the spring (30) is fixedly connected to the baffle, and the other end of the spring (30) is fixedly connected to the support plate on the side close to the partition (25).

Images