Processing equipment and method for promoting browning of smoked plums by combining far infrared rays with temperature and humidity

Abstract

The invention discloses processing equipment and method for promoting browning of smoked plums by combining far infrared rays with temperature and humidity. The equipment is composed of a conveying mechanism, a dehydration mechanism, a browning mechanism, a drying mechanism and an intelligent control system. The dehydration mechanism is matched with a dehumidifier through a far infrared radiant tube and a humidifier, so that efficient dehydration is realized; the browning mechanism utilizes a steam generator, a heating device and a radiant panel to create a suitable environment to promote browning; the drying mechanism completes accurate drying by means of a dehumidifier and a radiant tube; during machining, the intelligent control system sets parameters of all stages, and equipment operation is monitored and adjusted in real time. The problems that traditional smoked plum processing is low in efficiency, unstable in quality and high in energy consumption are solved, continuity and intellectualization of the smoked plum processing process are achieved through precise cooperative regulation and control of far infrared radiation and temperature and humidity, the product quality and production benefits are remarkably improved, meanwhile, the equipment applicability is high, the energy-saving effect is remarkable, and the production cost is low. Good application prospects and popularization values are realized.

Description

Technical Field

[0001] The present invention relates to the technical field of food processing, and in particular to a far-infrared combined with temperature and humidity processing device and a method for promoting the browning of black plums. Background Art

[0002] As a specialty agricultural product that can be used as both medicine and food, black plum has a wide range of applications in food, medicine and other fields due to its unique flavor and rich medicinal value. In the processing of black plum, dehydration, browning and drying are the key links that determine its quality and flavor.

[0003] At present, traditional methods of processing black plums mostly use natural drying, hot air drying and other methods. Natural drying is limited by factors such as weather and site, has a long processing cycle, low efficiency, and is easily contaminated by dust, mosquitoes and other insects, making it difficult to ensure the stability of product quality. Although hot air drying has improved processing efficiency to a certain extent, there is a problem of uneven heat transfer, which leads to the phenomenon of crusting on the outer shell during the dehydration process of black plums, hindering the evaporation of internal moisture, not only prolonging the dehydration time, but also destroying the internal tissue structure of the black plums, affecting the subsequent browning and drying effects.

[0004] In terms of browning treatment, traditional processes often lack precise control over temperature and humidity, making it difficult to achieve uniform browning of black plums. Insufficient browning will result in poor color and lack of flavor of the black plums, while excessive browning will cause the loss of nutrients in the black plums and even produce harmful substances, seriously affecting product quality and safety. In addition, traditional drying methods cannot be precisely adjusted according to the real-time moisture content of the black plums, and are prone to over-drying or insufficient drying, resulting in energy waste and reduced product quality.

[0005] Therefore, how to provide a far-infrared combined with temperature and humidity to promote the browning of black plum processing equipment and method is a problem that technicians in this field urgently need to solve. Summary of the Invention

[0006] One purpose of the present invention is to propose a far-infrared combined with temperature and humidity to promote the browning of black plums and a method thereof. The present invention can efficiently realize the dehydration, browning and drying processes of black plums through the synergistic effect of far-infrared radiation and precise control of temperature and humidity, solve the problems of low efficiency, unstable quality and high energy consumption in traditional processing methods, significantly improve the uniformity, product quality and production efficiency of black plum processing, and at the same time reduce the dependence of the processing process on environmental conditions and enhance the adaptability of the equipment to different black plum raw materials.

[0007] According to an embodiment of the present invention, a far-infrared combined with temperature and humidity to promote the browning of black plum processing equipment includes a conveying mechanism, a dehydration mechanism, a browning mechanism and a drying mechanism;

[0008] The dehydration mechanism, browning mechanism and drying mechanism are connected in sequence, and the dehydration mechanism, browning mechanism and drying mechanism are all arranged on the top of the conveying mechanism, and an automatic transmission channel is provided between the dehydration mechanism, browning mechanism and drying mechanism;

[0009] The conveying mechanism includes a conveying frame, and transmission rollers are provided on the front and rear sides of the conveying frame. Conveyor belts are provided on the two sets of transmission rollers. A drive motor is fixedly installed on one side of the conveying frame, and the output shaft of the drive motor is connected to the transmission roller through a coupling.

[0010] The dehydration mechanism includes a dehydration chamber fixedly mounted on the top of the conveyor rack, an ultrasonic humidifier is provided on the outer wall of one side of the dehydration chamber, a rotary dehumidifier is provided on the other side of the dehydration chamber, several groups of axial flow fans are provided on the top of the dehydration chamber, and several groups of far-infrared radiation tubes are installed on both sides and the top of the inner wall of the dehydration chamber;

[0011] The browning mechanism includes a browning chamber fixedly mounted on the top of the conveyor rack and located at the rear side of the dehydration chamber, a plurality of groups of far-infrared radiation panels are mounted on the top of the inner wall of the browning chamber, an electric heating steam generator is arranged on one side of the outer wall of the browning chamber, and resistance wire heating devices are fixedly mounted on the bottom of both sides of the inner wall of the browning chamber;

[0012] The drying mechanism comprises a drying chamber fixedly mounted on the top of the conveying rack and located at the rear side of the browning chamber, and a refrigeration dehumidifier is fixedly mounted on the side wall of the drying chamber.

[0013] Furthermore, several groups of nozzles are fixedly installed on the inner wall of the dehydration chamber and close to one side of the ultrasonic humidifier. The output end of the ultrasonic humidifier is connected to several groups of nozzles inside the dehydration chamber through a pipe. The nozzle adopts an atomizing nozzle with a spray angle of 60°-90°, and the spray flow rate of the nozzle can be adjusted within the range of 5-20L / h, so that the water mist can be more evenly distributed in the dehydration chamber.

[0014] Furthermore, an air inlet is provided at the lower side of the inner wall of the dehydration chamber, and an air outlet is provided on the other side of the inner wall of the dehydration chamber. A first air collecting hood and a second air collecting hood are respectively installed at both ends of the axial flow fan. The first air collecting hood is connected with each group of air inlets through a pipe, and the second air collecting hood is connected with each group of air outlets through a pipe. Filters are provided at the air inlet and the air outlet to prevent black plum debris from entering the pipe and affecting the air circulation.

[0015] Furthermore, the output end of the electric heating steam generator is connected to the interior of the browning chamber through a high-temperature resistant pipe. A first humidity sensor is provided on the front and rear sides of the inner wall of the browning chamber. A steam flow regulating valve is provided on the high-temperature resistant pipe, which can accurately adjust the steam flow in the range of 0-100L / min according to the instructions of the intelligent control system, and the power of the electric heating steam generator can be adjusted in the range of 5-20kW.

[0016] Furthermore, the output end of the refrigerated dehumidifier is connected to the interior of the drying chamber through a pipe, a second humidity sensor is installed on the top of the inner wall of the drying chamber, and a drain port is provided at the bottom of the drying chamber to facilitate the discharge of moisture generated during the dehumidification process.

[0017] Furthermore, the dehydration chamber, browning chamber and drying chamber are all made of double-layer heat-insulating material, and rock wool insulation material is filled between the double layers to reduce heat loss and lower energy consumption.

[0018] Furthermore, electric gates are provided in the dehydration chamber, the browning chamber and the conveying channel at the bottom of the drying chamber. The opening and closing time of the electric gates can be adjusted within 1-3 seconds and have an anti-clamping function.

[0019] Furthermore, it also includes an intelligent control system, which adopts a PLC controller. The PLC controller is connected to the ultrasonic humidifier, the rotary dehumidifier, the axial flow fan, the far-infrared radiation tube, the electric heating steam generator, the resistance wire heating device, the refrigerated dehumidifier and each humidity sensor through a signal line, and is used to receive data feedback from the temperature and humidity sensors, and automatically control the operation of each equipment according to preset process parameters.

[0020] A method for processing equipment for promoting the browning of black plums by combining far infrared with temperature and humidity, comprising the following steps:

[0021] S1. Place the black plums to be processed evenly on the conveyor belt of the transmission mechanism, check whether the connections of the various components of the equipment are normal, and set the process parameters of each stage on the control cabinet display screen of the intelligent control system, including the dehydration stage temperature of 40-50°C, humidity of 60%-70%, and dehydration time of 2-3 hours, the browning stage temperature of 60-70°C, humidity of 80%-90%, and browning time of 3-4 hours, the drying stage temperature of 50-60°C, and drying to a moisture content of less than 16%. At the same time, set the power of the far-infrared radiation tube, the radiation plate and the operating parameters of each device. The initial power of the far-infrared radiation tube is set to 4-6kW, the power of the far-infrared radiation plate is set to 10-15kW, and the initial speed of the axial flow fan is set to 1000-1200r / min.

[0022] S2. Start the equipment, drive the conveyor belt with the motor, and send the black plums into the dehydration chamber. The intelligent control system issues a command, and the far-infrared radiation tube starts working at the set initial power to heat and dehydrate the black plums. The ultrasonic humidifier releases water mist into the chamber through the nozzle to maintain the initial humidity. The axial flow fan starts to run, and air circulation is formed in the chamber through the air inlet and outlet to make the temperature and humidity evenly distributed. During the dehydration process, the temperature and humidity sensors installed in the chamber monitor the environmental parameters in real time and feed the data back to the intelligent control system. When the temperature is lower than the set value, the intelligent control The system automatically increases the power of the far-infrared radiation tube. When the temperature is higher than the set value, the power of the radiation tube is reduced to reduce the radiant heat. If the humidity is higher than the set value, the rotary dehumidifier increases its working intensity to discharge excess moisture. If the humidity is lower than the set value, the ultrasonic humidifier increases the water spray volume. At the same time, the intelligent control system gradually reduces the humidity setting value according to the dehydration time and the dehydration status of the black plum to meet the needs of the dehydration process. When the dehydration reaches the preset conditions, that is, the moisture content and appearance of the black plum meet the requirements, the intelligent control system sends a signal to control the conveyor belt to transport the black plum to the browning chamber.

[0023] S3. After the black plums enter the browning chamber, the intelligent control system controls the electric heating steam generator and the resistance wire heating device to work quickly to increase the temperature and humidity in the chamber. At the same time, the far-infrared radiation panel is started to assist the browning of the black plums. The first humidity sensor monitors the humidity in the chamber in real time and feeds the data back to the intelligent control system. The intelligent control system adjusts the working status of the steam generator and the dehumidifier according to the feedback data to maintain a stable high temperature and high humidity environment in the chamber, maintaining the temperature at 60-70℃ and the humidity at 80%-90% for 3-4 hours to promote efficient browning of the black plums. When the browning time reaches the preset value, the intelligent control system controls the conveyor belt to transport the black plums to the drying chamber.

[0024] S4. After the black plums enter the drying chamber, the intelligent control system controls the refrigeration dehumidifier to start working to reduce the humidity in the chamber. At the same time, according to the data feedback from the second humidity sensor and the preset drying temperature, the power of the far-infrared radiation tube is adjusted to control the temperature in the chamber at 50-60°C. The penetrating power of far-infrared radiation is used to quickly dry the black plums. During the drying process, the moisture content of the black plums is continuously monitored. When the moisture content of the black plums drops below 16%, the intelligent control system controls the conveyor belt to stop running, indicating that the processing is completed.

[0025] Furthermore, in step S1, when it is detected that the temperature in a local area of the black plum is too high, the intelligent control system controls the far-infrared radiation tube near the area to reduce the power, and at the same time increases the speed of the axial flow fan in the area to strengthen the air circulation and reduce the local temperature.

[0026] The beneficial effects of the present invention are:

[0027] 1. The equipment in the present invention quickly transports the black plum to the dehydration mechanism, browning mechanism and drying mechanism in sequence through the transmission mechanism 1. The various mechanisms are closely connected to realize the continuous operation of black plum processing. In the dehydration mechanism, the far-infrared radiation tube directly acts on the black plum in an efficient heat radiation manner, and cooperates with the air flow circulation formed by the axial flow fan to accelerate the evaporation of water in the black plum. Compared with the traditional dehydration method, the dehydration time is greatly shortened by 2-3 hours. In the browning mechanism, the electric heating steam generator and the resistance wire heating device quickly create a high temperature and high humidity environment. Combined with the auxiliary heating of the far-infrared radiation plate, the black plum completes efficient browning within 3-4 hours. The drying mechanism uses a refrigerated dehumidifier to quickly reduce the moisture content of the black plum to below 16%. The entire processing process is efficient and smooth, which greatly improves the processing efficiency of the black plum.

[0028] 2. During the processing of black plums, the present invention accurately controls the temperature, humidity and far-infrared radiation conditions. The dehydration mechanism adjusts the working status of the ultrasonic humidifier and the rotary dehumidifier in real time through the intelligent control system to ensure that the black plums are evenly heated during the dehydration process, avoid crusting of the outer shell, and retain the internal nutrients of the black plums. The browning mechanism accurately controls the steam flow and heating power based on the data feedback from the first humidity sensor to maintain a stable high temperature and high humidity environment, so that the black plums can achieve a uniform and sufficient browning reaction and form an ideal color and flavor. The drying mechanism accurately adjusts the drying temperature and humidity based on the data of the second humidity sensor to prevent the black plums from being over-drying or unevenly drying, thereby ensuring the quality consistency of the finished black plum products and improving the market competitiveness of the products.

[0029] 3. The equipment in the present invention adopts a chamber structure with double-layer heat-insulating material. Rock wool insulation material is filled between the double layers of the dehydration chamber, browning chamber and drying chamber, which effectively reduces heat loss and reduces energy consumption. At the same time, the application of far-infrared radiation technology enables heat to directly penetrate the interior of the black plum, thereby improving the utilization rate of thermal energy. Compared with traditional heating methods, energy consumption is reduced by about 30%. In addition, the intelligent control system accurately controls the operating parameters of the equipment according to the process requirements of each stage, avoiding energy waste and further achieving energy saving and consumption reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 This is the overall structure diagram of the far-infrared combined with temperature and humidity to promote the browning of black plums proposed by the present invention;

[0032] Figure 2 This is a rear view of a far-infrared combined with temperature and humidity to promote the browning of black plums proposed by the present invention;

[0033] Figure 3 This is a bottom view of the dehydration mechanism, browning mechanism and drying mechanism of the far-infrared combined temperature and humidity to promote the browning of black plums proposed by the present invention;

[0034] Figure 4 This is a diagram showing the internal structure of the dehydration chamber of a far-infrared combined with temperature and humidity to promote the browning of black plums proposed by the present invention;

[0035] Figure 5 This is a structural diagram of the other side of the dehydration chamber of the far-infrared combined with temperature and humidity to promote the browning of black plums proposed by the present invention;

[0036] Figure 6 This is a diagram showing the internal structure of the browning chamber of a far-infrared combined with temperature and humidity to promote the browning of black plums proposed by the present invention;

[0037] Figure 7 This is a diagram of the internal structure of the drying chamber of a far-infrared combined with temperature and humidity to promote the browning of black plums proposed by the present invention;

[0038] Figure 8 This is a flow chart of the processing method of the far-infrared combined with temperature and humidity to promote the browning of black plums proposed by the present invention.

[0039] In the figure: 1. Conveying mechanism; 11. Conveying rack; 12. Driving roller; 13. Conveyor belt; 14. Driving motor; 2. Dehydrating mechanism; 21. Dehydrating chamber; 22. Rotary dehumidifier; 23. Axial fan; 24. First air collecting hood; 25. Second air collecting hood; 26. Ultrasonic humidifier; 27. Far-infrared radiation tube; 28. Nozzle; 29. Air outlet; 210. Electric gate; 211. Air inlet; 3. Browning mechanism; 31. Browning chamber; 32. Electric heating steam generator; 33. Far-infrared radiation plate; 34. First humidity sensor; 35. Resistance wire heating device; 4. Drying mechanism; 41. Drying chamber; 42. Refrigerated dehumidifier; 43. Second humidity sensor; 5. Intelligent control system. DETAILED DESCRIPTION

[0040] The present invention will now be described in further detail with reference to the accompanying drawings, which are simplified schematic diagrams that illustrate the basic structure of the present invention in a schematic manner.

[0041] like Figures 1-8 The far-infrared combined with temperature and humidity to promote the browning of black plums is shown, which is used for processing black plums. The equipment includes a conveying mechanism 1, a dehydrating mechanism 2, a browning mechanism 3 and a drying mechanism 4.

[0042] The conveying mechanism 1 includes a conveying frame 11, which has transmission rollers 12 on the front and rear sides. A conveyor belt 13 is sleeved on the transmission roller 12. A drive motor 14 is installed on one side of the conveying frame 11, and the output shaft of the drive motor 14 is connected to the transmission roller 12 through a coupling.

[0043] The dehydration mechanism 2 includes a dehydration chamber 21 fixed to the top of the conveyor rack 11. An ultrasonic humidifier 26 is installed on the outer wall of one side of the dehydration chamber 21, and a rotary dehumidifier 22 is installed on the other side. Several groups of axial flow fans 23 are installed on the top, and multiple groups of far-infrared radiation tubes 27 are installed on both sides of the inner wall and the top.

[0044] The browning mechanism 3 includes a browning chamber 31 fixed to the top of the conveyor frame 11 and located behind the dehydration chamber 21. The top of the inner wall of the browning chamber 31 is provided with a plurality of groups of far-infrared radiation panels 33, one side of the outer wall is provided with an electric heating steam generator 32, and the bottom of both sides of the inner wall are fixedly installed with resistance wire heating devices 35.

[0045] The drying mechanism 4 includes a drying chamber 41 fixed on the top of the conveying rack 11 and located at the rear side of the browning chamber 31 , and a refrigeration dehumidifier 42 is fixedly installed on the side wall of the drying chamber 41 .

[0046] In addition, the device also includes an intelligent control system 5, which adopts a PLC controller and is connected to various devices and sensors through signal lines.

[0047] Through the above-mentioned equipment, the present invention can achieve efficient dehydration, uniform browning and precise drying of black plums, greatly improving the quality and efficiency of black plum processing. The overall structure of the equipment is compact, and the various mechanisms work together. Through the precise control of far-infrared radiation and temperature and humidity, it effectively promotes the browning reaction of black plums, reduces energy consumption, and reduces production costs. At the same time, the application of the intelligent control system can flexibly adjust the processing parameters according to the characteristics of different batches of black plums, thereby improving the applicability of the equipment.

[0048] Conveyor mechanism 1 is used to transport the black plums. The drive motor 14 rotates the drive roller 12, which in turn drives the conveyor belt 13, sequentially conveying the black plums to the dehydration mechanism 2, the browning mechanism 3, and the drying mechanism 4. In dehydration mechanism 2, an ultrasonic humidifier 26 releases mist into the dehydration chamber 21 through a nozzle 28 to regulate the humidity within the chamber. A rotary dehumidifier 22 promptly removes excess moisture when humidity is high. An axial fan 23 circulates air within the chamber through an air inlet 211 and an outlet 29, which, in conjunction with the far-infrared radiator 27, ensures efficient, quality-preserving dehydration of the black plums. In the browning mechanism 3, an electric steam generator 32 and a resistance wire heater 35 rapidly raise the temperature and humidity within the chamber. Far-infrared radiator panels 33 provide additional heating, promoting browning in the high-temperature, high-humidity environment. In drying mechanism 4, a refrigerated dehumidifier 42 reduces the humidity within the chamber, while the far-infrared radiator 27 continuously heats the chamber, rapidly drying the black plums to the target moisture content. The intelligent control system 5 monitors the temperature and humidity of each chamber in real time, and automatically controls the operation of each device according to the preset process parameters to ensure that the black plum processing process is stable and efficient.

[0049] Secondly, several groups of nozzles 28 are fixedly installed on the inner wall of the dehydration chamber 21 near the side of the ultrasonic humidifier 26. The output end of the ultrasonic humidifier 26 is connected to the nozzle 28 through a pipe. The nozzle 28 adopts an atomizing nozzle with a spray angle of 60°-90°, which can evenly distribute the water mist in the chamber and effectively adjust the humidity. An air inlet 211 is provided at the bottom of one side of the inner wall of the dehydration chamber 21, and an air outlet 29 is provided on the other side. The first air collection hood 24 and the second air collection hood 25 installed at both ends of the axial flow fan 23 are connected to the air inlet 211 and the air outlet 29 respectively through pipes. Filters are set at the air inlet 211 and the air outlet 29 to prevent black plum debris from entering the pipe and ensure smooth air circulation. The dehydration chamber 21, the browning chamber 31 and the drying chamber 41 all use double-layer thermal insulation materials, and rock wool insulation material is filled between the double layers to reduce heat loss and reduce energy consumption. Furthermore, an electric gate 210 is provided in the transmission channel at the bottom of each chamber to control the transmission of black plums between different chambers.

[0050] To dehydrate the black plums, the equipment is started, and the drive motor 14 drives the conveyor belt 13 to transport the black plums into the dehydration chamber 21. The intelligent control system 5 controls the far-infrared radiation tube 27 to operate at a set power to heat the black plums. Simultaneously, the ultrasonic humidifier 26 releases water mist through the nozzle 28, and the axial flow fan 23 operates to form an air circulation system. During the dehydration process, temperature and humidity sensors monitor the environmental parameters in the chamber in real time and provide feedback to the intelligent control system 5. If the temperature or humidity deviates from the set value, the intelligent control system 5 automatically adjusts the power of the far-infrared radiation tube 27, the water spray volume of the ultrasonic humidifier 26, the operating intensity of the rotary dehumidifier 22, and the speed of the axial flow fan 23 to ensure uniform dehydration of the black plums and prevent crusting of the outer shell. When the dehydration reaches the preset condition, the intelligent control system 5 controls the electric gate 210 to open, and the conveyor belt 13 transports the black plums to the browning chamber 31.

[0051] Once the dried plums enter the browning chamber 31, the intelligent control system 5 immediately activates the electric steam generator 32 and resistance wire heater 35, rapidly raising the temperature and humidity within the chamber. Simultaneously, the far-infrared radiator 33 activates auxiliary heating. A first humidity sensor 34 monitors the humidity within the chamber in real time and provides feedback. Based on this feedback, the intelligent control system 5 adjusts the steam flow and heating power to maintain a stable high-temperature, high-humidity environment. When the browning time reaches a preset value, the intelligent control system 5 controls the electric gate 210 to open, and the conveyor belt 13 transports the dried plums to the drying chamber 41.

[0052] Inside the drying chamber 41, the intelligent control system 5 controls the refrigerated dehumidifier 42 to reduce the humidity. Simultaneously, based on data from the second humidity sensor 43 and the preset drying temperature, it adjusts the power of the far-infrared radiation tubes 27 to rapidly dry the dried plums. When the moisture content of the plums falls below 16%, the intelligent control system 5 stops the conveyor belt 13, indicating that processing is complete.

[0053] A method for processing equipment for promoting the browning of black plums by combining far infrared with temperature and humidity, comprising the following steps:

[0054] S1: Place the black plums to be processed evenly on the conveyor belt 13 of the transmission mechanism 1, check whether the connections of the various components of the equipment are normal, and set the process parameters of each stage on the control cabinet display screen of the intelligent control system 5, including the dehydration stage temperature of 40-50°C, humidity of 60%-70%, and dehydration time of 2-3 hours, the browning stage temperature of 60-70°C, humidity of 80%-90%, and browning time of 3-4 hours, the drying stage temperature of 50-60°C, and drying to a moisture content of less than 16%. At the same time, set the power of the far-infrared radiation tube 27, the radiation plate 33 and the operating parameters of each device. The initial power of the far-infrared radiation tube 27 is set to 4-6kW, the power of the far-infrared radiation plate 33 is set to 10-15kW, and the initial speed of the axial flow fan 23 is set to 1000-1200r / min.

[0055] S2: Start the equipment, drive the motor 14 to drive the conveyor belt 13 to move, and send the black plums into the dehydration chamber 21. The intelligent control system 5 issues a command, and the far-infrared radiation tube 27 starts working at the set initial power to heat and dehydrate the black plums. The ultrasonic humidifier 26 releases water mist into the chamber through the nozzle 28 to maintain the initial humidity. The axial flow fan 23 starts to operate, and an air circulation is formed in the chamber through the air inlet 211 and the air outlet 29 to make the temperature and humidity evenly distributed. During the dehydration process, temperature and humidity sensors installed in the chamber monitor environmental parameters in real time and feed this data back to the intelligent control system 5. When the temperature falls below a set point, the intelligent control system 5 automatically increases the power of the far-infrared radiator 27. When the temperature rises above the set point, the power of the radiator 27 is reduced to reduce the amount of heat radiated. If the humidity rises above the set point, the rotary dehumidifier 22 increases its operation to remove excess moisture. If the humidity falls below the set point, the ultrasonic humidifier 26 increases its water spray rate. Simultaneously, the intelligent control system 5 gradually decreases the humidity set point based on the dehydration time and the dehydration state of the black plums to meet the dehydration requirements. When dehydration reaches a predetermined level (i.e., the water content and appearance of the black plums meet the required standards), the intelligent control system 5 sends a signal to control the conveyor belt 13 to transport the black plums to the browning chamber 31.

[0056] S3: After the plums enter the browning chamber 31, the intelligent control system 5 activates the electric steam generator 32 and the resistance wire heater 35 to rapidly increase the temperature and humidity within the chamber. Simultaneously, the far-infrared radiation panel 33 is activated to assist in the browning of the plums. A first humidity sensor 34 monitors the humidity within the chamber in real time and feeds this data back to the intelligent control system 5. Based on this feedback, the intelligent control system 5 adjusts the operating states of the steam generator and dehumidifier to maintain a stable high-temperature, high-humidity environment within the chamber, maintaining a temperature of 60-70°C and a humidity of 80%-90% for 3-4 hours, promoting efficient browning of the plums. When the browning time reaches a preset value, the intelligent control system 5 controls the conveyor belt 13 to transport the plums to the drying chamber 41.

[0057] S4: After the dried plums enter the drying chamber 41, the intelligent control system 5 activates the refrigerated dehumidifier 42 to reduce the humidity within the chamber. Simultaneously, based on the data fed back by the second humidity sensor 43 and the preset drying temperature, the power of the far-infrared radiation tube 27 is adjusted to maintain the chamber temperature between 50°C and 60°C, utilizing the penetrating properties of far-infrared radiation to rapidly dry the plums. During the drying process, the moisture content of the plums is continuously monitored. When the moisture content drops below 16%, the intelligent control system 5 stops the conveyor belt 13, indicating that the drying process is complete.

[0058] The above embodiment merely represents one embodiment of the present invention, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art may make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A far infrared combined with temperature and humidity to promote the browning of black plum processing equipment, characterized in that: It comprises a conveying mechanism (1), a dehydrating mechanism (2), a browning mechanism (3) and a drying mechanism (4); The dehydration mechanism (2), the browning mechanism (3) and the drying mechanism (4) are connected in sequence, the dehydration mechanism (2), the browning mechanism (3) and the drying mechanism (4) are all arranged on the top of the conveying mechanism (1), and an automatic transmission channel is provided between the dehydration mechanism (2), the browning mechanism (3) and the drying mechanism (4); The conveying mechanism (1) comprises a conveying frame (11), wherein transmission rollers (12) are provided on both the front and rear sides of the conveying frame (11), and conveyor belts (13) are provided on the two sets of transmission rollers (12). A driving motor (14) is fixedly installed on one side of the conveying frame (11), and the output shaft of the driving motor (14) is connected to the transmission rollers (12) through a coupling. The dehydration mechanism (2) comprises a dehydration chamber (21) fixedly mounted on the top of the conveying rack (11); an ultrasonic humidifier (26) is provided on the outer wall of one side of the dehydration chamber (21); a rotary dehumidifier (22) is provided on the other side of the dehydration chamber (21); a plurality of axial flow fans (23) are provided on the top of the dehydration chamber (21); and a plurality of far-infrared radiation tubes (27) are installed on both sides of the inner wall and the top of the dehydration chamber (21); The browning mechanism (3) comprises a browning chamber (31) fixedly mounted on the top of the conveying rack (11) and located at the rear side of the dehydration chamber (21); a plurality of groups of far-infrared radiation panels (33) are mounted on the top of the inner wall of the browning chamber (31); an electric heating steam generator (32) is disposed on one side of the outer wall of the browning chamber (31); and resistance wire heating devices (35) are fixedly mounted on the bottom of both sides of the inner wall of the browning chamber (31); The drying mechanism (4) comprises a drying chamber (41) fixedly mounted on the top of the conveying rack (11) and located at the rear side of the browning chamber (31), and a refrigeration dehumidifier (42) is fixedly mounted on the side wall of the drying chamber (41).

2. The far-infrared combined with temperature and humidity to promote the browning of black plums and the method thereof according to claim 1, characterized in that: Several groups of nozzles (28) are fixedly installed on the inner wall of the dehydration chamber (21) and close to one side of the ultrasonic humidifier (26). The output end of the ultrasonic humidifier (26) is connected to the several groups of nozzles (28) inside the dehydration chamber (21) through a pipeline. The nozzles (28) are atomizing nozzles with a spray angle of 60°-90°. The spray flow rate of the nozzles (28) can be adjusted within the range of 5-20L / h, so that the water mist can be more evenly distributed in the dehydration chamber (21).

3. The far-infrared combined with temperature and humidity to promote the browning of black plum processing equipment according to claim 1, characterized in that: An air inlet (211) is provided at the lower side of the inner wall of the dehydration chamber (21), and an air outlet (29) is provided at the other side of the inner wall of the dehydration chamber (21). A first air collecting hood (24) and a second air collecting hood (25) are respectively installed at both ends of the axial flow fan (23). The first air collecting hood (24) is connected to each group of air inlets (211) through a pipeline, and the second air collecting hood (25) is connected to each group of air outlets (29) through a pipeline. Filters are provided at the air inlet (211) and the air outlet (29) to prevent black plum debris from entering the pipeline and affecting air circulation.

4. The far-infrared combined with temperature and humidity to promote the browning of black plum processing equipment according to claim 1, characterized in that: The output end of the electric heating steam generator (32) is connected to the interior of the browning chamber (31) through a high-temperature resistant pipe. A first humidity sensor (34) is provided on the front and rear sides of the inner wall of the browning chamber (31). A steam flow regulating valve is provided on the high-temperature resistant pipe, which can accurately adjust the steam flow within the range of 0-100L / min according to the instructions of the intelligent control system, and the power of the electric heating steam generator (32) can be adjusted within the range of 5-20kW.

5. The far infrared combined with temperature and humidity to promote the browning of black plum processing equipment according to claim 1, characterized in that: The output end of the refrigerated dehumidifier (42) is connected to the interior of the drying chamber (41) through a pipeline. A second humidity sensor (43) is installed on the top of the inner wall of the drying chamber (41). A drain port is provided at the bottom of the drying chamber (41) to facilitate the discharge of moisture generated during the dehumidification process.

6. The far-infrared combined with temperature and humidity to promote the browning of black plum processing equipment according to claim 1, characterized in that: The dehydration chamber (21), the browning chamber (31) and the drying chamber (41) are all made of double-layer heat-insulating material, and the space between the double layers is filled with rock wool insulation material to reduce heat loss and lower energy consumption.

7. The far-infrared combined with temperature and humidity to promote the browning of black plum processing equipment according to claim 1, characterized in that: Electric gates (210) are provided in the bottom conveying channels of the dehydration chamber (21), the browning chamber (31) and the drying chamber (41). The opening and closing time of the electric gates (210) can be adjusted within 1-3 seconds and has a material-prevention function.

8. The far-infrared combined with temperature and humidity to promote the browning of black plums processing equipment according to claim 1, characterized in that: The invention also includes an intelligent control system (5), wherein the intelligent control system (5) adopts a PLC controller, and the PLC controller is connected to the ultrasonic humidifier (26), the rotary dehumidifier (22), the axial flow fan (23), the far infrared radiation tube (27), the electric heating steam generator (32), the resistance wire heating device (35), the refrigeration dehumidifier (42) and each humidity sensor through a signal line, and is used to receive data fed back by the temperature and humidity sensors and automatically control the operation of each device according to preset process parameters.

9. The processing method of a far-infrared combined with temperature and humidity to promote the browning of black plums according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1. The black plums to be processed are evenly placed on the conveyor belt (13) of the transmission mechanism (1), and the connections of the various components of the equipment are checked to see if they are normal. The process parameters of each stage are set on the control cabinet display screen of the intelligent control system (5), including the temperature of 40-50°C, humidity of 60%-70%, and dehydration time of 2-3 hours in the dehydration stage, the temperature of 60-70°C, humidity of 80%-90%, and browning time of 3-4 hours in the browning stage, the temperature of 50-60°C, and drying to a moisture content of less than 16% in the drying stage. At the same time, the power of the far-infrared radiation tube (27) and the radiation plate (33) as well as the operating parameters of each device are set. The initial power of the far-infrared radiation tube (27) is set to 4-6kW, the power of the far-infrared radiation plate (33) is set to 10-15kW, and the initial speed of the axial flow fan (23) is set to 1000-1200r / min. S2, start the equipment, drive the motor (14) to drive the conveyor belt (13) to operate, and send the black plum into the dehydration chamber (21), the intelligent control system (5) issues a command, the far infrared radiation tube (27) starts to work at the set initial power, and heats and dehydrates the black plum. The ultrasonic humidifier (26) releases water mist into the chamber through the nozzle (28) to maintain the initial humidity. The axial flow fan (23) starts to operate, and forms an air circulation in the chamber through the air inlet (211) and the air outlet (29), so that the temperature and humidity are evenly distributed. During the dehydration process, the temperature and humidity sensor installed in the chamber monitors the environmental parameters in real time and feeds back the data to the intelligent control system (5). When the temperature is lower than the set value, The intelligent control system (5) automatically increases the power of the far-infrared radiation tube (27). When the temperature is higher than the set value, the power of the radiation tube (27) is reduced to reduce the radiant heat. If the humidity is higher than the set value, the rotary dehumidifier (22) increases the working intensity to discharge the excess moisture. If the humidity is lower than the set value, the ultrasonic humidifier (26) increases the water spraying amount. At the same time, the intelligent control system (5) gradually reduces the humidity setting value according to the dehydration time and the dehydration state of the black plum to meet the needs of the dehydration process. When the dehydration reaches the preset conditions, that is, the water content and appearance of the black plum meet the requirements, the intelligent control system (5) sends a signal to control the conveyor belt (13) to transport the black plum to the browning chamber (31). S3, after the black plum enters the browning chamber (31), the intelligent control system (5) controls the electric heating steam generator (32) and the resistance wire heating device (35) to work quickly, thereby increasing the temperature and humidity in the chamber. At the same time, the far infrared radiation plate (33) is started to assist the browning of the black plum. The first humidity sensor (34) monitors the humidity in the chamber in real time and feeds back the data to the intelligent control system (5). The intelligent control system (5) adjusts the working state of the steam generating device and the dehumidifying device according to the feedback data to maintain a stable high temperature and high humidity environment in the chamber, maintaining the temperature at 60-70°C and the humidity at 80%-90% for 3-4 hours, thereby promoting efficient browning of the black plum. When the browning time reaches a preset value, the intelligent control system (5) controls the conveyor belt (13) to transport the black plum to the drying chamber (41). S4. After the black plums enter the drying chamber (41), the intelligent control system (5) controls the refrigeration dehumidifier (42) to start working, thereby reducing the humidity in the chamber. At the same time, according to the data fed back by the second humidity sensor (43) and the preset drying temperature, the power of the far-infrared radiation tube (27) is adjusted to control the temperature in the chamber at 50-60° C. The black plums are quickly dried by utilizing the penetrating property of far-infrared radiation. During the drying process, the moisture content of the black plums is continuously monitored. When the moisture content of the black plums drops below 16%, the intelligent control system (5) controls the conveyor belt (13) to stop running, indicating that the processing is completed.

10. The processing method according to claim 9, characterized in that: In step S1, when it is detected that the temperature of a local area of the black plum is too high, the intelligent control system (5) controls the far-infrared radiation tube (27) near the area to reduce the power, and at the same time increases the rotation speed of the axial flow fan (23) in the area to strengthen the air circulation and reduce the local temperature.

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