Automatic vinegar powder preparing and drying system

Abstract

The invention discloses an automatic vinegar powder preparation and drying system, and relates to the technical field of vinegar powder preparation, the automatic vinegar powder preparation and drying system comprises a rack, and the rack is provided with a raw material pretreatment unit, a vinegar powder preparation unit and a collecting and grading unit which are connected in sequence; wherein the raw material pretreatment unit comprises a continuous feeding system which is used for continuously feeding a vinegar raw material and an embedding medium; an inner wall cleaning mechanism capable of rotating and revolving is further arranged in the spray dryer, the collecting and grading unit comprises a cyclone separator, a bag-type dust collector and a vibrating screen classifier, and full-automatic production of vinegar powder is achieved through the raw material pretreatment unit, the vinegar powder preparation unit and the collecting and grading unit. And the designed inner wall cleaning mechanism can prevent excessive products from adhering to the inner wall of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of vinegar powder processing equipment, and in particular to an automatic vinegar powder preparation and drying system. Background Art

[0002] In the food industry and condiment manufacturing field, vinegar powder is gradually gaining favor in the market as a high value-added, easy to store and transport vinegar product. The traditional preparation method of vinegar powder often relies on manual operation, such as manual mixing of raw materials, intermittent spray drying, and subsequent collection and classification process, which is not only inefficient, but also difficult to ensure the stability and consistency of product quality. In addition, during the long-term operation of traditional equipment, due to the sticky characteristics of the vinegar liquid raw material, it is easy to form scale on the inner wall of the equipment, affecting the operating efficiency of the equipment and the sanitary quality of the product.

[0003] With the rapid development of automation technology and the in-depth promotion of the concept of intelligent manufacturing, the food industry is gradually transforming towards intelligence, continuity and efficiency. In this context, it is particularly important to develop an automated vinegar powder preparation and drying system that can automatically complete the entire process of vinegar powder preparation and effectively solve the problem of scale accumulation on the inner wall of the equipment. This system can not only significantly improve production efficiency and reduce labor costs, but also ensure the stability and consistency of product quality by accurately controlling various process parameters, thereby meeting the market demand for high-quality vinegar powder products. Summary of the invention

[0004] In order to solve the above problems, the present invention proposes an automated vinegar powder preparation and drying system integrating raw material pretreatment, vinegar powder preparation, collection and grading. By introducing a continuous feeding system, an efficient spray dryer and a built-in rotation and revolution inner wall cleaning mechanism, as well as an advanced collection and grading unit, the fully automatic, efficient and clean production of vinegar powder is achieved, providing strong support for the transformation and upgrading of the vinegar powder manufacturing industry.

[0005] The present invention is achieved through the following technical solutions:

[0006] An automated vinegar powder preparation and drying system comprises a frame, on which a raw material pretreatment unit, a vinegar powder preparation unit, and a collection and classification unit are sequentially connected;

[0007] The raw material pretreatment unit includes a continuous feeding system for continuously supplying vinegar liquid raw materials and embedding agents. The raw material pretreatment unit includes a vinegar liquid tank, an embedding agent tank, and a premixing pipeline. The vinegar liquid tank and the embedding agent tank are connected to the premixing pipeline through a liquid pump, and the discharge port of the premixing pipeline is connected to the vinegar powder preparation unit;

[0008] The vinegar powder preparation unit comprises a primary fermentation tank, a secondary fermentation tank, and a spray dryer which are connected in sequence; an atomization chamber and a drying chamber are arranged from top to bottom in the spray dryer, a rotary spray mechanism is arranged on the top of the atomization chamber, and a rotary spray head is arranged on the rotary spray mechanism; a hot air system is arranged in the drying chamber for continuously introducing hot air into the drying chamber;

[0009] The spray dryer is also provided with an inner wall cleaning mechanism, the inner cleaning mechanism comprises a plurality of cleaning rollers evenly arranged around an axis, the cleaning rollers can revolve around the axis and rotate on their own axis to clean the inner wall of the spray dryer;

[0010] The collection and classification unit includes a cyclone separator, a bag dust collector, and a vibrating screener; the bottom discharge port of the spray dryer is connected to a cyclone separator, and the cyclone separator separates the dried vinegar powder from the hot air and collects the vinegar powder particles; the air outlet of the spray dryer is connected to a bag dust collector, and the bag dust collector further purifies the exhaust gas to ensure that the emission meets the standards;

[0011] The gas discharge port of the cyclone separator is connected to a bag dust collector, and the solid discharge port of the cyclone separator is connected to a vibrating screening machine. The vibrating screening machine screens the collected vinegar powder to remove large particles and lumps to ensure uniform product particle size.

[0012] In order to further optimize the present invention, the following technical solutions may be preferably used:

[0013] Preferably, the rotary spray mechanism includes a rotary spray head rotatably arranged at the top of the spray chamber, the rotary spray head is provided with spray ports evenly distributed around the axis, the spray ports are provided with liquid channels and gas channels, the liquid channels are arranged at the periphery of the gas channels, and the top of the rotary spray head is provided with air inlets and liquid inlets connected to the liquid channels and the gas channels; the arrangement of the rotary spray head allows the vinegar liquid to be sprayed out evenly in the form of fine mist, increasing the surface area of ​​the liquid in contact with the hot air and improving the drying efficiency. At the same time, the special layout of the gas channel and the liquid channel, the conical design of the end thereof, and the formation of the venturi tube structure help to increase the speed and uniformity of the spray, and further enhance the drying effect.

[0014] Preferably, the terminal outlet position of the liquid channel and the terminal outlet position of the gas channel are both tapered, and the two cooperate to form a venturi tube structure. A breaking baffle is provided at the spray port, and the breaking baffle is a conical body combining a cylinder and a cone. The conical body design of the breaking baffle is conducive to further refining the liquid particles during the spraying process, ensuring the generation of finer vinegar powder particles, thereby improving the solubility and fluidity of the product.

[0015] Preferably, the cleaning roller is arranged along the axial direction of the spray dryer, a supporting shaft is arranged in the spray dryer at a position corresponding to the cleaning roller, a self-rotating driving internal gear ring is arranged on the inner wall of the spray dryer at positions corresponding to both ends of the cleaning roller, and a driven gear cooperating with the self-rotating driving internal gear ring is arranged on the supporting shaft.

[0016] Preferably, a revolving drive ring gear is axially arranged in the spray dryer, the supporting shaft is rotatably arranged on the revolving drive ring gear, a revolving tooth portion is arranged on the outer side wall of the revolving drive ring gear, a revolving drive motor is arranged on the spray dryer, and a driving gear matching with the revolving tooth portion is arranged on the revolving drive motor; the embedded matching of the slide groove and the revolving drive ring gear and the ball design in the groove not only ensure the smooth movement of the revolving drive ring gear, but also reduce the friction and wear during the operation of the equipment, and improve the stability and service life of the equipment.

[0017] Preferably, a slide groove is provided on the side wall of the spray dryer corresponding to the position of the revolving drive gear ring, the revolving drive gear ring is embedded in the slide groove, grooves are circumferentially opened on both sides of the revolving drive gear ring, and balls are filled in the grooves; the embedding cooperation of the slide groove and the revolving drive gear ring and the ball design in the groove not only ensures the smooth movement of the revolving drive gear ring, but also reduces the friction and wear during the operation of the equipment, thereby improving the stability and service life of the equipment.

[0018] Preferably, a connecting pipe is provided at the bottom of the primary fermentation tank and the secondary fermentation tank, a valve is provided on the connecting pipe, a feeding pipe is provided in the secondary fermentation tank, the lower end of the feeding pipe extends to the bottom of the secondary fermentation tank, the feeding pipe is connected to a feeding pump, and the discharge end of the feeding pump is connected to the liquid inlet of the spray dryer; by providing a connecting pipe between the primary fermentation tank and the secondary fermentation tank, and equipping with a valve, the material flow of the two fermentation stages can be flexibly controlled, thereby optimizing the fermentation process, improving the utilization rate of raw materials and the quality of the product. At the same time, the feeding pipe directly extends to the bottom of the secondary fermentation tank, and with the use of the feeding pump, the fermentation liquid can be efficiently and continuously transported to the spray dryer, reducing the operation links, and reducing the labor intensity and pollution risks.

[0019] Preferably, a preheating module is provided at the liquid inlet of the spray dryer, and a three-helix pipeline is provided in the preheating module, and the three-helix pipeline transports liquid, hot air, and compressed gas respectively, and the air outlet of the spray dryer is connected with a preheating branch, and the preheating branch is connected to a pipeline of the double helix pipeline. The setting of the preheating module allows the liquid entering the spray dryer to be preheated, which helps to maintain the temperature stability during the spray drying process and ensure the drying efficiency and product quality. The design of the three-helix pipeline allows the liquid, hot air, and compressed gas to be transported and exchanged in parallel. This design is conducive to improving energy utilization efficiency and realizing precise temperature control; by connecting the air outlet of the spray dryer to the preheating branch and connecting it to the double helix pipeline, the heat discharged by the spray dryer can be recycled and used to preheat the incoming liquid or other medium. This heat recovery mechanism reduces energy consumption, improves the energy efficiency of the entire system, and also reduces production costs.

[0020] The automated vinegar powder preparation and drying system has the following beneficial effects:

[0021] 1) High production efficiency: Through the continuous feeding system, the continuous supply of vinegar liquid raw materials and embedding agents is achieved, avoiding the waiting time in traditional intermittent operation, thereby improving the overall production efficiency.

[0022] 2) Ensure product quality: The system uses primary and secondary fermentation tanks to prepare vinegar powder, ensuring the fermentation quality of the product. The use of spray dryers allows the vinegar powder to be dried evenly and quickly, ensuring the stability and consistency of the final product.

[0023] 3) Save energy consumption: The design of the hot air system allows heat energy to be recycled, reducing energy waste. At the same time, the setting of the inner wall cleaning mechanism reduces the need for manual cleaning, reducing labor intensity and production costs.

[0024] 4). Reduce environmental pollution: The cyclone separator effectively separates vinegar powder from hot air, reducing dust emissions. The bag filter further purifies the exhaust gas to ensure that the emissions meet environmental standards and reduce the impact on the environment.

[0025] 5) Improve operational convenience: The automated control system simplifies the operating process, reduces the skill requirements for operators, and makes the equipment easier to monitor and manage.

[0026] 6) Enhanced safety: The automated system reduces the risk of direct human contact with hazardous chemicals and improves workplace safety.

[0027] 7). Optimize space utilization: The integrated design makes the entire system occupy a small area and has a compact layout, which is suitable for production needs of different scales.

[0028] 8). Easy to maintain and clean: The design of the inner wall cleaning mechanism makes the cleaning and maintenance of the equipment more convenient and extends the service life of the equipment.

[0029] In summary, this automated vinegar powder preparation and drying system has significant beneficial effects in improving production efficiency, ensuring product quality, saving energy consumption, reducing environmental pollution, improving operational convenience, enhancing safety, optimizing space utilization, and facilitating maintenance and cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is the overall wiring layout diagram of the vinegar powder preparation and drying system;

[0031] Figure 2 Schematic diagram of the three-dimensional structure of the spray dryer;

[0032] Figure 3 It is the front view of the spray dryer;

[0033] Figure 4 Schematic diagram of the internal structure of the spray dryer;

[0034] Figure 5 This is a three-dimensional diagram of the internal structure of the spray dryer;

[0035] Figure 6 It is a structural schematic diagram of the inner wall cleaning mechanism;

[0036] Figure 7 It is a schematic diagram of the three-dimensional structure of the rotary spray head;

[0037] Figure 8 It is a top view of the internal structure of the rotary spray head;

[0038] Fig. 9 This is a cross-sectional view of the internal structure of the rotary spray head.

[0039] Among them: 1-vinegar liquid tank; 2-embedding agent tank; 3-primary fermentation tank; 4-secondary fermentation tank; 5-spray dryer; 6-air filter; 7-hot air induced draft fan; 8-burner; 9-connecting pipe; 10-cyclone separator; 11-bag dust collector; 12-vibration screening machine; 13-preheating module; 14-triple spiral pipeline; 15-compressed gas delivery pipeline; 16-liquid delivery pipeline; 17-inner wall cleaning mechanism; 18-cleaning roller; 19-revolution drive gear ring; 20-driving gear; 21-rotation drive inner gear ring; 22-high-temperature gas delivery pipeline; 23-inlet end; 24-preheating branch; 26-rotation spray mechanism; 27-driven gear; 28-revolution gear tooth portion; 29-rotation spray head; 30-spray outlet; 31-liquid channel; 32-gas channel; 33-crushing baffle; 34-inlet; 35-liquid inlet. DETAILED DESCRIPTION

[0040] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0041] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments of the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0042] Example 1

[0043] like Figure 1-9 As shown, an automated vinegar powder preparation and drying system comprises a frame, on which a raw material pretreatment unit, a vinegar powder preparation unit, and a collection and classification unit are sequentially connected and installed;

[0044] The raw material pretreatment unit includes a continuous feeding system for continuously supplying vinegar liquid raw materials and embedding agents. The raw material pretreatment unit includes a vinegar liquid tank 1, an embedding agent tank 2, and a premixing pipeline. The vinegar liquid tank and the embedding agent tank are connected to the premixing pipeline through a liquid pump. The discharge port of the premixing pipeline is connected to the vinegar powder preparation unit. Specifically, the vinegar liquid tank 1 and the embedding agent tank 2 are equipped with independent liquid pumps, and various discharge ports are equipped with valves to better control the feeding.

[0045] The vinegar powder preparation unit includes a primary fermentation tank 3, a secondary fermentation tank 4, and a spray dryer 5 which are connected in sequence;

[0046] The spray dryer 5 is designed with an atomizing chamber and a drying chamber from top to bottom, a rotatable rotary spray mechanism is installed on the top of the atomizing chamber, and a rotary spray head is installed on the rotary spray mechanism 26; a hot air system is installed on the drying chamber for continuously introducing hot air into the drying chamber, wherein the hot air system includes an air filter 6, a hot air induced draft fan 7, and a burner 8 which are sequentially connected along the hot air flow direction, and the filtered air is heated by the burner and then enters the spray dryer to dry the mist raw material; wherein the primary fermentation tank 3 and the secondary fermentation tank 4 are connected to a connecting pipe 9 at the bottom, a valve is installed on the connecting pipe, a feeding pipe is installed in the secondary fermentation tank, the lower end of the feeding pipe extends to the bottom of the secondary fermentation tank, the feeding pipe is connected to a feeding pump, and the discharge end of the feeding pump is connected to the liquid inlet of the spray dryer.

[0047] The collecting and grading unit includes a cyclone separator 10, a bag dust collector 11, and a vibrating screener 12; the bottom discharge port of the spray dryer is connected to the cyclone separator, which separates the dried vinegar powder from the hot air and collects the vinegar powder particles; the air outlet of the spray dryer is connected to the bag dust collector, which further purifies the exhaust gas to ensure that the emission meets the standards; the gas discharge port of the cyclone separator 10 is connected to the bag dust collector 11, and the solid discharge port of the cyclone separator is connected to the vibrating screener 12, which screens the collected vinegar powder to remove large particles and lumps to ensure that the product has uniform particle size.

[0048] The rotary spray mechanism 26 includes a rotary spray head rotatably mounted on the top of the spray chamber, a spray port 30 is evenly distributed around the axis in the rotary spray head 29, a liquid channel 31 and a gas channel 32 are installed at the spray port, the liquid channel is installed on the periphery of the gas channel, and an air inlet 34 and a liquid inlet 35 connected to the liquid channel and the gas channel are opened on the top of the rotary spray head; wherein the terminal outlet position of the liquid channel and the terminal outlet position of the gas channel are both conical, and the two cooperate to form a venturi tube structure, and a crushing baffle 33 is installed at the spray port, and the crushing baffle is a conical body combining a cylinder and a cone, and the specific use process is: compressed gas flows in from the gas channel and flows out from the spray port; due to the rapid contraction of the spray port, the gas When the liquid is sprayed out from the spray nozzle, due to the Venturi effect, negative pressure will be generated between the nozzle and the liquid channel. Under the action of negative pressure, the vinegar liquid will be sprayed upward through the liquid channel, and the sprayed vinegar liquid will be mixed with the high-speed airflow at the nozzle. After the gas-liquid two phases are initially mixed, the vinegar liquid will hit the crushing baffle driven by the high-speed airflow to be crushed. The initially crushed vinegar liquid continues to move driven by the high-speed airflow; at this time, strong instability will be generated on the liquid surface, and this instability will cause the liquid film on the liquid surface to tear and cause the droplets to break. The broken droplets will be subjected to shear force, gas pressure, the liquid phase pressure of the droplets themselves, the surface tension of the droplets themselves, and the viscosity of the droplets themselves, which further causes the vinegar liquid to break, and finally become extremely fine mist droplets to be sprayed out.

[0049] The above structural design has the following advantages: (1) Improving the atomization effect: By installing the liquid channel and the gas channel as a Venturi tube structure, that is, the end outlet of the liquid channel and the end outlet of the gas channel are both conical and cooperate with each other, the liquid is quickly sheared and broken into fine droplets under the action of the high-speed airflow. This structure can significantly improve the uniformity and fineness of the atomization, which is beneficial to increase the heat exchange area during the drying process and improve the drying efficiency. (2) Enhancing the spray stability: The design of the rotary spray head allows the spray nozzles to be evenly installed around the axis, and the uniform distribution of the spray is achieved through the rotating motion of the rotary spray head. This design not only avoids local accumulation of the spray, but also improves the coverage and stability of the spray, ensuring that all areas in the drying room can be fully covered by the spray. (3) Optimizing the crushing effect: The crushing baffle installed at the spray nozzle is a cone-shaped body combined with a cylinder and a cone. This shape design can more effectively perform secondary crushing of the droplets, making the droplets smaller and more uniform. The existence of the crushing baffle can also guide the flow direction of the droplets, reduce the rebound and splashing of the droplets, and further improve the utilization rate of the spray and the drying effect.

[0050] Since the vinegar liquid contains sugar, it is easy to adhere to the inner wall of the equipment. In order to ensure the product output, an inner wall cleaning mechanism 17 is also designed in the spray dryer. The internal cleaning mechanism includes a plurality of cleaning rollers evenly installed around the axis. The cleaning roller 18 can revolve around the axis and rotate to clean the inner wall of the spray dryer; wherein the cleaning roller is installed along the axial direction of the spray dryer, a supporting shaft is installed at the position corresponding to the cleaning roller in the spray dryer, and a self-rotating driving inner gear ring 21 is installed on the inner wall of the spray dryer at the positions corresponding to the two ends of the cleaning roller, and a driven gear 27 cooperating with the self-rotating driving inner gear ring is installed on the supporting shaft. A revolving drive gear ring is installed axially in the spray dryer, and the support shaft is rotatably installed on the revolving drive gear ring 19, and a revolving tooth portion 28 is installed on the outer wall of the revolving drive gear ring. A revolving drive motor is installed on the spray dryer, and a driving gear 20 that cooperates with the revolving tooth portion is installed on the revolving drive motor. In order to ensure the rotation stability of the revolving drive gear ring, a slide groove is opened on the side wall of the spray dryer corresponding to the position of the revolving drive gear ring, and the revolving drive gear ring is embedded in the slide groove. Grooves are opened on both sides of the revolving drive gear ring around the circumference, and the grooves are filled with balls. The above design has the following advantages: (1) Improve production efficiency and product quality: Through multiple cleaning rollers that are evenly installed around the axis, the inner wall of the spray dryer is fully cleaned. The cleaning roller can not only revolve around the axis, but also rotate. This composite motion mode ensures that the residue on the inner wall is completely removed, avoiding the reduction of production efficiency and product quality problems caused by fouling. At the same time, the cleaning roller is installed along the axial direction of the spray dryer to ensure the continuity and uniformity of cleaning. (2) Enhanced cleaning effect: The cooperation between the self-rotating driving inner gear ring and the driven gear enables the cleaning roller to move accurately along the inner wall, ensuring the cleaning of every corner. This mechanized cleaning method is more thorough than manual cleaning and is not affected by human factors, which improves the reliability and consistency of cleaning. (3) Improved stability of the revolution driving gear ring: The design of the revolution driving gear ring provides a stable power source for the revolution of the cleaning roller. By opening a slide groove on the side wall of the spray dryer and allowing the revolution driving gear ring to rotate in the slide groove, it not only limits its radial movement but also ensures its smooth rotation. This design reduces noise and wear caused by vibration or imbalance and extends the service life of the equipment. (4) Simplified operation and maintenance: The cooperation between the revolution driving motor and the driving gear realizes remote control of the revolution driving gear ring. The operator can adjust the revolution speed of the cleaning roller by simply controlling the speed and direction of the revolution driving motor, thereby meeting the cleaning requirements under different working conditions. In addition, since the cleaning mechanism has a relatively simple structure and is easy to disassemble and install, it also facilitates the daily maintenance and upkeep of the equipment. (5) Improving the overall performance of the equipment: The addition of the inner wall cleaning mechanism not only solves the problem of fouling on the inner wall of the spray dryer, but also improves the overall performance and stability of the equipment.The continuous operation of the cleaning roller ensures the cleanliness of the inner wall of the drying chamber, avoiding the decrease in thermal efficiency and increase in energy consumption caused by fouling. At the same time, the rotation and revolution of the cleaning roller also promote the uniform distribution of airflow in the drying chamber, improving the drying effect and product output. In summary, the design of the inner wall cleaning mechanism and its revolution drive gear ring added to the spray dryer has shown significant beneficial effects in improving production efficiency, enhancing cleaning effect, improving equipment stability, and simplifying operation and maintenance.

[0051] Because vinegar powder is a polysaccharide powder, the inlet air temperature is easy to be high but difficult to be low. If the temperature is too low, the product cannot be completely dried and will stick to the wall. The inlet temperature should be between 170 and 200°C, and the outlet temperature should be between 95 and 105°C, otherwise damp powder will be easily produced. Therefore, a preheating module 13 is installed at the liquid inlet of the spray dryer, and a three-helix pipeline 14 is installed in the preheating module 13. The three-helix pipeline 14 transports liquid, hot air and compressed gas respectively, namely, a compressed gas delivery pipeline 15, a liquid delivery pipeline 16, and a high-temperature gas delivery pipeline 22. The air inlet end 23 of the spray dryer is connected with a preheating branch 24, which is connected to the high-temperature gas delivery pipeline 22 of the double-helix pipeline to provide a heat source for heat transfer. When passing through the preheating module, the hot air in the hot gas delivery pipeline preheats the compressed air and liquid before entering the spray dryer to improve the drying effect. The specific structural design has the following advantages: (1) The liquid, hot air and compressed gas entering the spray dryer are preheated by the preheating module, ensuring that the raw materials have reached a certain temperature before entering the drying chamber. This not only accelerates the evaporation of water during the drying process, but also allows the product to be heated more evenly, thereby improving the drying efficiency and effectively avoiding the wall sticking phenomenon caused by insufficient temperature, ensuring the drying quality of the product. (2) Optimizing energy utilization: The design of the preheating module makes full use of the waste heat at the outlet of the spray dryer, and transfers this part of the heat energy to the liquid and compressed gas entering the system through the preheating branch, thereby realizing the recycling of energy. This design not only reduces energy consumption, but also reduces the demand for external heat sources, which is in line with the concept of energy conservation and environmental protection. (3) Enhancing system stability: The design of the three-helix pipeline enables hot air, liquid and compressed gas to be preheated separately and effectively, avoiding the problems that may be caused by direct mixing of different media, such as uneven temperature and chemical reactions. This separate preheating method enhances the stability and reliability of the system and extends the service life of the equipment.

[0052] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automated vinegar powder preparation and drying system, characterized in that: It comprises a frame, on which a raw material pretreatment unit, a vinegar powder preparation unit, and a collection and classification unit are sequentially connected; The raw material pretreatment unit includes a continuous feeding system for continuously supplying vinegar liquid raw materials and embedding agents. The raw material pretreatment unit includes a vinegar liquid tank, an embedding agent tank, and a premixing pipeline. The vinegar liquid tank and the embedding agent tank are connected to the premixing pipeline through a liquid pump, and the discharge port of the premixing pipeline is connected to the vinegar powder preparation unit; The vinegar powder preparation unit comprises a primary fermentation tank, a secondary fermentation tank, and a spray dryer which are connected in sequence; an atomization chamber and a drying chamber are arranged from top to bottom in the spray dryer, a rotary spray mechanism is arranged on the top of the atomization chamber, and a rotary spray head is arranged on the rotary spray mechanism; a hot air system is arranged in the drying chamber for continuously introducing hot air into the drying chamber; The spray dryer is also provided with an inner wall cleaning mechanism, the inner cleaning mechanism comprises a plurality of cleaning rollers evenly arranged around an axis, the cleaning rollers can revolve around the axis and rotate on their own axis to clean the inner wall of the spray dryer; The collection and classification unit includes a cyclone separator, a bag dust collector, and a vibrating screener; the bottom discharge port of the spray dryer is connected to a cyclone separator, and the cyclone separator separates the dried vinegar powder from the hot air and collects the vinegar powder particles; the air outlet of the spray dryer is connected to a bag dust collector, and the bag dust collector further purifies the exhaust gas to ensure that the emission meets the standards; The gas discharge port of the cyclone separator is connected to a bag dust collector, and the solid discharge port of the cyclone separator is connected to a vibrating screening machine. The vibrating screening machine screens the collected vinegar powder to remove large particles and lumps to ensure uniform product particle size.

2. The automated vinegar powder preparation and drying system according to claim 1, characterized in that: The rotary spray mechanism includes a rotary spray head rotatably arranged on the top of the spray chamber, the rotary spray head is provided with spray outlets evenly distributed around an axis, the spray outlets are provided with liquid channels and gas channels, the liquid channels are arranged on the periphery of the gas channels, and the top of the rotary spray head is provided with an air inlet and a liquid inlet connected to the liquid channel and the gas channel.

3. The automated vinegar powder preparation and drying system according to claim 2, characterized in that: The terminal outlet position of the liquid channel and the terminal outlet position of the gas channel are both conical, and the two cooperate to form a Venturi tube structure. A breaking baffle is arranged at the spray port, and the breaking baffle is a conical body combining a cylinder and a cone.

4. The automated vinegar powder preparation and drying system according to claim 1, characterized in that: The cleaning roller is arranged along the axial direction of the spray dryer, a supporting shaft is arranged in the spray dryer at a position corresponding to the cleaning roller, a self-rotating driving internal gear ring is arranged on the inner wall of the spray dryer at positions corresponding to both ends of the cleaning roller, and a driven gear matching the self-rotating driving internal gear ring is arranged on the supporting shaft.

5. The automated vinegar powder preparation and drying system according to claim 1, characterized in that: A plurality of revolving drive gear rings are axially arranged in the spray dryer, the supporting shaft is rotatably arranged on the revolving drive gear rings, a revolving tooth portion is arranged on the outer side wall of the revolving drive gear rings, a revolving drive motor is arranged on the spray dryer, and a driving gear matched with the revolving tooth portion is arranged on the revolving drive motor.

6. The automated vinegar powder preparation and drying system according to claim 1, characterized in that: A slide groove is arranged on the side wall of the spray dryer corresponding to the position of the revolution drive gear ring, the revolution drive gear ring is embedded in the slide groove, grooves are opened around the circumference on both sides of the revolution drive gear ring, and balls are filled in the grooves.

7. The automated vinegar powder preparation and drying system according to claim 1, characterized in that: A connecting pipe is provided at the bottom of the primary fermentation tank and the secondary fermentation tank, and a valve is provided on the connecting pipe. A feeding pipe is provided in the secondary fermentation tank, and the lower end of the feeding pipe extends to the bottom of the secondary fermentation tank. The feeding pipe is connected to a feeding pump, and the discharge end of the feeding pump is connected to the liquid inlet of the spray dryer.

8. The automated vinegar powder preparation and drying system according to claim 1, characterized in that: A preheating module is provided at the liquid inlet of the spray dryer, and a triple helical pipeline is provided in the preheating module. The triple helical pipelines respectively transport liquid, hot gas and compressed gas. The air outlet of the spray dryer is connected to a preheating branch, and the preheating branch is connected to one pipeline of the double helical pipeline.

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