Grain microwave and hot air combined drying device and control system thereof

Abstract

The invention relates to the technical field of grain drying, in particular to a grain microwave and hot air combined drying device and a control system thereof.The grain microwave and hot air combined drying device comprises a supporting seat, the upper surface of the supporting seat is fixedly connected with a conveying frame, one end of the rear surface of the conveying frame is fixedly connected with a servo motor, and the interior of the conveying frame is in transmission connection with a conveying belt; according to the method, analysis is carried out from two points of drying parameters and grain drying performance, so that the target drying device is adjusted according to feedback information conditions, and the situation that the water content of dried grains is too high or too low due to unreasonable parameter setting, so that the grain quality is reduced is avoided; operation performance supervision, evaluation and analysis are conducted on the working state data in an information feedback mode to achieve low-consumption and efficient grain drying, drying operation data are further analyzed so as to reduce the influence of operation of a ventilation component or a microwave component on grain drying, meanwhile, low-consumption and efficient grain drying operation can be achieved, and the grain drying efficiency is improved. And therefore, the energy-saving effect is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of grain drying, and in particular to a grain microwave and hot air combined drying device and a control system thereof. Background Art

[0002] Microwave-hot air combined drying is a new drying method and technology in which microwaves and hot air act on the dried materials at the same time. However, the unevenness of microwave heating is a major factor restricting its development. Compared with microwave drying and hot air drying, hot air-microwave coupled drying can obtain products with fast drying rate, high vitamin C retention rate and good rehydration performance.

[0003] However, in the prior art, it is impossible to safely supervise the actual operation of the grain microwave hot air combined drying equipment, which is not conducive to the stable operation of the grain microwave hot air combined drying equipment, and it is impossible to adjust the grain microwave hot air combined drying equipment in time, resulting in unreasonable parameter settings, making the moisture content of the grain after drying too high or too low, thereby reducing the quality of the grain, and it is impossible to supervise the drying components of the grain microwave hot air combined drying equipment, which is not conducive to the rational use of energy;

[0004] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0005] The object of the present invention is to provide a grain microwave and hot air combined drying device and its control system to solve the above-mentioned technical defects. The present invention analyzes from two points of view: drying parameters and grain drying performance, so as to adjust the target drying device according to the feedback information to improve the drying effect of the target drying device and avoid unreasonable parameter settings that lead to excessively high or low moisture content of grain after drying, thereby reducing the quality of grain. The operating performance supervision, evaluation and analysis of the working status data are carried out by means of information feedback to achieve low-cost and efficient grain drying, and the drying operation data is further refined for information supervision, feedback management and analysis to reduce the impact of the operation of ventilation components or microwave components on grain drying, which helps to achieve low-cost and efficient grain drying operations and achieve energy-saving effects.

[0006] The objective of the present invention can be achieved through the following technical scheme: a grain microwave and hot air combined drying device, comprising a support seat, the upper surface of the support seat is fixedly connected to a transmission frame, one end of the rear surface of the transmission frame is fixedly connected to a servo motor, the internal transmission of the transmission frame is connected to a transmission belt, and the transmission belt and the servo motor cooperate with each other, the upper surface of the transmission frame is fixedly connected to a protective shell, the upper surface of the protective shell is fixedly connected to an air inlet hood, the upper surface of the air inlet hood is fixedly connected to an air duct, the end away from the air duct is fixedly connected to a hot air blower, and the front surface of the protective shell is fixedly connected to a control panel.

[0007] Preferably, a control system for a grain microwave and hot air combined drying device comprises a grain drying control platform, wherein the grain drying control platform is internally provided with an information collection unit, a verification and analysis unit, a deviation control unit, a performance evaluation unit, a detailed operation efficiency unit and a management display unit;

[0008] The information collection unit is used to collect parameter setting information and grain drying information of the grain microwave hot air drying device, and send the parameter setting information and grain drying information to the verification and analysis unit and the deviation control unit respectively;

[0009] After receiving the parameter setting information, the verification and analysis unit immediately performs information deviation correction and supervision analysis on the parameter setting information, and compares and analyzes the obtained drying influence index to obtain a control signal and a normal signal;

[0010] The deviation control unit is used to respond to normal signals and receive grain drying information, immediately perform drying supervision, control and analysis on the grain drying information, obtain stable signals and feedback instructions, and when generating feedback instructions, obtain the drying evaporation value corresponding to the feedback instructions, and perform discrimination processing on the drying evaporation value:

[0011] If the drying evaporation value is greater than the preset drying evaporation value threshold, a downward adjustment signal is generated;

[0012] If the drying evaporation value is greater than the preset drying evaporation value threshold, a high adjustment signal is generated;

[0013] The performance evaluation unit is used to collect the working state data of the target drying device in response to the stable signal, and to perform operation performance supervision evaluation and analysis on the working state data, and to compare and analyze the obtained effective operation efficiency index to obtain a qualified signal and a unqualified signal;

[0014] The refined operation efficiency unit is used to respond to unqualified signals and collect drying operation data of the target drying device, and perform refined information supervision feedback management analysis on the drying operation data to obtain ventilation management signals, microwave management signals and drying management signals.

[0015] Preferably, the information deviation correction supervision analysis process of the verification and analysis unit is as follows:

[0016] The working time period of the grain microwave hot air drying device is collected and set as the time threshold, the grain microwave hot air drying device is set as the target drying device, the time threshold is divided into i sub-time periods, i is a natural number greater than zero, and the parameter setting information of the target drying device within the time threshold is obtained, the parameter setting information includes a temperature deviation value and a flow rate difference value, the temperature deviation value and the flow rate difference value are compared and analyzed with the preset temperature deviation value threshold and the preset flow rate difference value threshold recorded and stored internally, the sub-time period corresponding to the temperature deviation value greater than the preset temperature deviation value threshold, or the flow rate difference value greater than the preset flow rate difference value threshold is set as the deviation time period, the ratio between the number of deviation time periods and the total number of sub-time periods is set as the drying influence index, and the drying influence index is compared and analyzed with the preset drying influence index threshold recorded and stored internally:

[0017] If the ratio between the drying impact index and the preset drying impact index threshold is less than 1, a normal signal is generated; if the ratio between the drying impact index and the preset drying impact index threshold is greater than or equal to 1, a control signal is generated.

[0018] Preferably, the temperature deviation value represents the difference between the actual drying temperature mean of the target drying device and the set drying temperature threshold; the flow rate difference value represents the portion of the actual ventilation flow rate of the target drying device that deviates from the set ventilation flow rate.

[0019] Preferably, the drying supervision, control and analysis process of the deviation control unit is as follows:

[0020] Obtaining grain drying information of a target drying device within a time threshold, the grain drying information including a weight value before drying and a weight value after drying, and then obtaining a difference between the weight value before drying and the weight value after drying, and setting the difference between the weight value before drying and the weight value after drying as a drying evaporation value;

[0021] The drying evaporation value is compared and analyzed with the preset drying evaporation value threshold value whose content is recorded and stored, and the difference between the drying evaporation value and the preset drying evaporation value threshold value is obtained, and the difference between the drying evaporation value and the preset drying evaporation value threshold value is set as the evaporation fault tolerance index, and the evaporation fault tolerance index is compared and analyzed with the preset evaporation fault tolerance index threshold value whose content is recorded and stored:

[0022] If the ratio between the evaporation fault tolerance index and the preset evaporation fault tolerance index threshold is less than 1, a stabilization signal is generated; if the ratio between the evaporation fault tolerance index and the preset evaporation fault tolerance index threshold is greater than or equal to 1, a feedback instruction is generated.

[0023] Preferably, the operation performance supervision evaluation and analysis process of the performance evaluation unit is as follows:

[0024] S1: Obtain the working status data of the target drying device within the time threshold, the working status data includes the total energy consumption value and the total value of grain drying, and at the same time obtain the air transport energy consumption value of the target drying device within the time threshold, the air transport energy consumption value represents the energy consumption value corresponding to the air transport standby period of the target drying device, and then obtain the value obtained by subtracting the air transport energy consumption value from the total energy consumption value, and set the value obtained by subtracting the air transport energy consumption value from the total energy consumption value as the drying energy consumption value;

[0025] S2: Obtain the ratio between the total value of dried grain and the drying energy consumption value, set the ratio between the total value of dried grain and the drying energy consumption value as the effective operation efficiency index, and compare and analyze the effective operation efficiency index with the preset effective operation efficiency index threshold value stored in the internal data entry:

[0026] If the ratio between the effective operation efficiency index and the preset effective operation efficiency index threshold is less than 1, a qualified signal is generated; if the ratio between the effective operation efficiency index and the preset effective operation efficiency index threshold is greater than or equal to 1, a failed signal is generated.

[0027] Preferably, the detailed information supervision feedback management analysis process of the detailed operation efficiency unit is as follows:

[0028] The drying operation data of the target drying device within the time threshold is obtained. The drying operation data includes the ventilation efficiency value and the microwave energy efficiency value. The ventilation efficiency value and the microwave energy efficiency value are compared and analyzed with the preset ventilation efficiency value threshold and the preset microwave energy efficiency value threshold that are recorded and stored internally:

[0029] If the ventilation efficiency value is less than the preset ventilation efficiency value threshold, and the microwave energy efficiency value is less than the preset microwave energy efficiency value threshold, no signal is generated;

[0030] If the ventilation efficiency value is greater than or equal to the preset ventilation efficiency value threshold, and the microwave energy efficiency value is less than the preset microwave energy efficiency value threshold, a ventilation management signal is generated;

[0031] If the ventilation efficiency value is less than the preset ventilation efficiency value threshold, and the microwave energy efficiency value is greater than or equal to the preset microwave energy efficiency value threshold, a microwave management signal is generated;

[0032] If the ventilation efficiency value is greater than or equal to the preset ventilation efficiency value threshold, and the microwave energy efficiency value is greater than or equal to the preset microwave energy efficiency value threshold, a drying management signal is generated;

[0033] The ventilation efficiency value represents the ratio between the operating efficiency of the ventilation components in the target drying device within the time threshold and the total energy consumption; the microwave energy efficiency value represents the ratio between the operating efficiency of the microwave components and the total energy consumption.

[0034] The beneficial effects of the present invention are as follows:

[0035] (1) The present invention analyzes the drying parameters and grain drying performance so as to adjust the target drying device according to the feedback information to improve the drying effect of the target drying device, that is, to perform information deviation correction supervision analysis on the parameter setting information so as to correct the parameters of the target drying device according to the feedback information, and to perform drying supervision, regulation and control analysis on the grain drying information so as to reasonably adjust the drying parameters of the target drying device according to the information feedback, so as to avoid unreasonable parameter setting leading to excessively high or low moisture content of grain after drying, thereby reducing the quality of grain;

[0036] (2) The present invention performs operation performance supervision, evaluation and analysis on the working status data by means of information feedback to achieve low-energy and high-efficiency grain drying, and further performs detailed information supervision, feedback and management analysis on the drying operation data to reduce the impact of the operation of ventilation components or microwave components on grain drying, and at the same time helps to achieve low-energy and high-efficiency grain drying operations, thereby achieving energy-saving effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will be further described below in conjunction with the accompanying drawings;

[0038] Figure 1 It is a stereogram of the present invention;

[0039] Figure 2 It is a flowchart of the system of the present invention;

[0040] Figure 3 This is a local analysis diagram of the second embodiment of the present invention.

[0041] Legend: 1. Support base; 2. Transmission frame; 3. Servo motor; 4. Transmission belt; 5. Protective casing; 6. Air inlet cover; 7. Air duct; 8. Hot air blower; 9. Control panel. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] Embodiment 1:

[0044] See also Figures 1 to 3As shown, the present invention is a grain microwave hot air combined drying device, comprising a support base 1, a transmission frame 2 is fixedly connected to the upper surface of the support base 1, a servo motor 3 is fixedly connected to one end of the rear surface of the transmission frame 2, a transmission belt 4 is connected to the internal transmission of the transmission frame 2, and the transmission belt 4 cooperates with the servo motor 3, a protective shell 5 is fixedly connected to the upper surface of the protective shell 5, an air inlet hood 6 is fixedly connected to the upper surface of the air inlet hood 6, an air duct 7 is fixedly connected to the upper surface of the air inlet hood 6, a hot air blower 8 is fixedly connected to the end of the air duct 7 away from 6, a control panel 9 is fixedly connected to the front surface of the protective shell 5, and a grain drying control platform is arranged inside the control panel 9;

[0045] In the embodiment of the present invention, when the device is used, the control panel 9 is operated to control the operation of the device, so that the food enters the device from the conveyor belt 4 and is dried by microwaves and hot air;

[0046] In the embodiment of the present invention, when the device is in use, the hot air blower 8 is controlled to work so that the hot air generated by the hot air blower 8 passes through the air guide duct 7 and the air inlet hood 6 and enters the interior of the device to dry the grain.

[0047] Embodiment 2:

[0048] A grain microwave hot air combined drying control system comprises a grain drying control platform, wherein an information collection unit, a verification and analysis unit, a deviation control unit, a performance evaluation unit, a detailed operation efficiency unit and a management display unit are arranged inside the grain drying control platform, wherein the information collection unit is connected to the verification and analysis unit and the deviation control unit in a one-way communication manner, the verification and analysis unit is connected to the deviation control unit in a one-way communication manner, the verification and analysis unit is connected to the management display unit in a one-way communication manner, the deviation control unit is connected to the performance evaluation unit and the management display unit in a one-way communication manner, the performance evaluation unit is connected to the detailed operation efficiency unit in a one-way communication manner, and the detailed operation efficiency unit is connected to the management display unit in a one-way communication manner;

[0049] When the grain drying control platform monitors that any grain microwave hot air drying device is working, a supervision instruction is generated and sent to the information collection unit. After receiving the supervision instruction, the information collection unit immediately collects the parameter setting information and grain drying information of the grain microwave hot air drying device, and sends the parameter setting information and grain drying information to the verification analysis unit and the deviation control unit respectively;

[0050] After receiving the parameter setting information, the verification and analysis unit immediately performs information deviation correction supervision analysis on the parameter setting information, so as to adjust the target drying device according to the feedback information to improve the drying effect of the target drying device. The specific information deviation correction supervision analysis process is as follows:

[0051] The working time period of the grain microwave hot air drying device is collected and set as the time threshold, the grain microwave hot air drying device is set as the target drying device, the time threshold is divided into i sub-time periods, i is a natural number greater than zero, and the parameter setting information of the target drying device within the time threshold is obtained, the parameter setting information includes a temperature deviation value and a flow rate difference value, the temperature deviation value and the flow rate difference value are compared and analyzed with the preset temperature deviation value threshold and the preset flow rate difference value threshold recorded and stored internally, the sub-time period corresponding to the temperature deviation value greater than the preset temperature deviation value threshold, or the flow rate difference value greater than the preset flow rate difference value threshold is set as the deviation time period, the ratio between the number of deviation time periods and the total number of sub-time periods is set as the drying influence index, and the drying influence index is compared and analyzed with the preset drying influence index threshold recorded and stored internally:

[0052] If the ratio between the drying impact index and the preset drying impact index threshold is less than 1, a normal signal is generated;

[0053] If the ratio between the drying impact index and the preset drying impact index threshold is greater than or equal to 1, a control signal is generated and sent to the management display unit. After receiving the control signal, the management display unit immediately performs a preset warning operation corresponding to the control signal, so as to adjust the target drying device according to the feedback information to improve the drying effect of the target drying device;

[0054] In the embodiment of the present invention, the temperature deviation value represents the difference between the actual drying temperature mean value of the target drying device and the set drying temperature threshold value. It should be noted that the larger the value of the temperature deviation value is, the greater the risk of affecting the drying effect is;

[0055] In the embodiment of the present invention, the flow rate difference value indicates the portion of the actual ventilation flow rate of the target drying device that deviates from the set ventilation flow rate. It should be noted that the larger the value of the flow rate difference value, the greater the risk of affecting the drying rate and the greater the risk of abnormal drying treatment effect.

[0056] After receiving the grain drying information and normal signals, the deviation control unit immediately conducts drying supervision, control and analysis on the grain drying information, so as to rationally adjust the drying parameters of the target drying device according to the information feedback, so as to avoid unreasonable parameter settings leading to excessively high or low moisture content of grain after drying, thereby reducing the quality of grain. The specific drying supervision, control and analysis process is as follows:

[0057] Obtaining grain drying information of a target drying device within a time threshold, the grain drying information including a weight value before drying and a weight value after drying, and then obtaining a difference between the weight value before drying and the weight value after drying, and setting the difference between the weight value before drying and the weight value after drying as a drying evaporation value;

[0058] The drying evaporation value is compared and analyzed with the preset drying evaporation value threshold value whose content is recorded and stored, and the difference between the drying evaporation value and the preset drying evaporation value threshold value is obtained, and the difference between the drying evaporation value and the preset drying evaporation value threshold value is set as the evaporation fault tolerance index, and the evaporation fault tolerance index is compared and analyzed with the preset evaporation fault tolerance index threshold value whose content is recorded and stored:

[0059] If the ratio between the evaporation fault tolerance index and the preset evaporation fault tolerance index threshold is less than 1, a stable signal is generated;

[0060] If the ratio between the evaporation fault tolerance index and the preset evaporation fault tolerance index threshold is greater than or equal to 1, a feedback instruction is generated. When the feedback instruction is generated, the drying evaporation value corresponding to the feedback instruction is obtained, and the drying evaporation value is judged:

[0061] If the drying evaporation value is greater than the preset drying evaporation value threshold, a downward adjustment signal is generated;

[0062] If the drying evaporation value is greater than the preset drying evaporation value threshold, an increase signal is generated, and the decrease signal and the increase signal are sent to the management display unit. After receiving the decrease signal and the increase signal, the management display unit immediately displays the preset warning text corresponding to the decrease signal and the increase signal, so as to rationally adjust the drying parameters of the target drying device according to the information feedback, so as to avoid unreasonable parameter settings resulting in excessively high or low moisture content of the grain after drying, thereby reducing the quality of the grain.

[0063] Embodiment three:

[0064] When a stable signal is generated, the performance evaluation unit is used to respond to the stable signal to collect the working status data of the target drying device, and perform operation performance supervision evaluation and analysis on the working status data, so as to rationally manage the target drying device according to the feedback information to achieve low-consumption and high-efficiency grain drying. The specific operation performance supervision evaluation and analysis process is as follows:

[0065] The working status data of the target drying device within the time threshold is obtained, and the working status data includes the total energy consumption value and the total value of grain drying. At the same time, the air transport energy consumption value of the target drying device within the time threshold is obtained, and the air transport energy consumption value represents the energy consumption value corresponding to the air transport standby period of the target drying device. Then, the value obtained by subtracting the air transport energy consumption value from the total energy consumption value is obtained, and the value obtained by subtracting the air transport energy consumption value from the total energy consumption value is set as the drying energy consumption value. It should be noted that the larger the value of the drying energy consumption value, the greater the energy consumption of the target drying device during the grain drying operation period;

[0066] The ratio between the total value of dried grain and the drying energy consumption value is obtained, and the ratio between the total value of dried grain and the drying energy consumption value is set as the effective operation efficiency index, and the effective operation efficiency index is compared and analyzed with the preset effective operation efficiency index threshold value stored in the internal entry:

[0067] If the ratio between the effective operation efficiency index and the preset effective operation efficiency index threshold is less than 1, a qualified signal is generated;

[0068] If the ratio between the effective operation efficiency index and the preset effective operation efficiency index threshold is greater than or equal to 1, an unqualified signal is generated, and the qualified signal and the unqualified signal are sent to the management display unit through the refined operation efficiency unit. After receiving the qualified signal and the unqualified signal, the management display unit immediately displays the preset warning text corresponding to the qualified signal and the unqualified signal, so as to rationally manage the target drying device according to the feedback information to achieve low-cost and high-efficiency grain drying;

[0069] When an unqualified signal is generated, the refined operation efficiency unit is used to respond to the unqualified signal and collect the drying operation data of the target drying device, and perform refined information supervision feedback management analysis on the drying operation data, so as to reduce the impact of the operation of the ventilation components or microwave components on grain drying, and at the same time help to achieve low-consumption and high-efficiency grain drying operations, thereby achieving energy-saving effects. The specific refined information supervision feedback management analysis process is as follows:

[0070] The drying operation data of the target drying device within the time threshold is obtained. The drying operation data includes the ventilation efficiency value and the microwave energy efficiency value. The ventilation efficiency value and the microwave energy efficiency value are compared and analyzed with the preset ventilation efficiency value threshold and the preset microwave energy efficiency value threshold that are recorded and stored internally:

[0071] If the ventilation efficiency value is less than the preset ventilation efficiency value threshold, and the microwave energy efficiency value is less than the preset microwave energy efficiency value threshold, no signal is generated;

[0072] If the ventilation efficiency value is greater than or equal to the preset ventilation efficiency value threshold, and the microwave energy efficiency value is less than the preset microwave energy efficiency value threshold, a ventilation management signal is generated;

[0073] If the ventilation efficiency value is less than the preset ventilation efficiency value threshold, and the microwave energy efficiency value is greater than or equal to the preset microwave energy efficiency value threshold, a microwave management signal is generated;

[0074] If the ventilation efficiency value is greater than or equal to the preset ventilation efficiency value threshold, and the microwave energy efficiency value is greater than or equal to the preset microwave energy efficiency value threshold, a drying management signal is generated, and the ventilation management signal, the microwave management signal and the drying management signal are sent to the management display unit. After receiving the ventilation management signal, the microwave management signal and the drying management signal, the management display unit immediately displays the preset warning texts corresponding to the ventilation management signal, the microwave management signal and the drying management signal, so as to manage and adjust the ventilation components or microwave components inside the target drying device according to the feedback information, so as to reduce the impact of the operation of the ventilation components or the microwave components on the grain drying, and at the same time help to achieve low-consumption and high-efficiency grain drying operation, thereby achieving energy-saving effects;

[0075] In the embodiment of the present invention, the ventilation efficiency value represents the ratio between the operating efficiency of the ventilation components in the target drying device within the time threshold and the total energy consumption. It should be noted that the larger the value of the ventilation efficiency value, the smaller the interference of the operation of the ventilation components in the target drying device on drying, and the lower the management demand. The ventilation components refer to the hot air blower 8;

[0076] In the embodiment of the present invention, the microwave energy efficiency value represents the ratio between the operating efficiency of the microwave component and the total energy consumption. It should be noted that the larger the value of the microwave energy efficiency value is, the smaller the interference of the operation of the microwave component in the target drying device on the drying is;

[0077] In summary, the present invention analyzes from two points of view, drying parameters and grain drying performance, so as to adjust the target drying device according to the feedback information to improve the drying effect of the target drying device, that is, to perform information deviation correction supervision analysis on the parameter setting information, so as to correct the parameters of the target drying device according to the feedback information, and to perform drying supervision, regulation and control analysis on the grain drying information, so as to rationally adjust the drying parameters of the target drying device according to the information feedback, so as to avoid unreasonable parameter settings leading to excessively high or low moisture content of grain after drying, thereby reducing the quality of grain, and to perform operation performance supervision, evaluation and analysis on the working status data through information feedback to achieve low-cost and efficient grain drying, and further perform detailed information supervision feedback management analysis on the drying operation data, so as to reduce the impact of the operation of ventilation components or microwave components on grain drying, and at the same time help to achieve low-cost and efficient grain drying operations, thereby achieving energy-saving effects.

[0078] The threshold is set to facilitate comparison. The size of the threshold depends on the amount of sample data and the number of bases set by technicians in this field for each group of sample data; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0079] The above formulas are obtained by collecting a large amount of data for software simulation and selecting a formula that is close to the actual value. The coefficients in the formula are set by technical personnel in this field according to actual conditions. The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited to this. Any technical personnel familiar with the technical field within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, make equivalent replacement or change, which should be covered within the protection scope of the present invention.

Claims

1. A grain microwave and hot air combined drying device, comprising a support base (1), It is characterized in that The invention comprises a support base (1), the upper surface of the support base (1) is fixedly connected to a transmission frame (2), one end of the rear surface of the transmission frame (2) is fixedly connected to a servo motor (3), the internal transmission of the transmission frame (2) is connected to a transmission belt (4), and the transmission belt (4) and the servo motor (3) cooperate with each other, the upper surface of the transmission frame (2) is fixedly connected to a protective shell (5), the upper surface of the protective shell (5) is fixedly connected to an air inlet cover (6), the upper surface of the air inlet cover (6) is fixedly connected to an air duct (7), the end of the air duct (7) away from (6) is fixedly connected to a hot air blower (8), and the front surface of the protective shell (5) is fixedly connected to a control panel (9).

2. A control system for a grain microwave and hot air combined drying device, the system being applied to the grain microwave and hot air combined drying device as claimed in claim 1, It is characterized in that It includes a grain drying control platform, which is internally equipped with an information collection unit, a verification and analysis unit, a deviation control unit, a performance evaluation unit, a detailed operation efficiency unit, and a management display unit; The information collection unit is used to collect parameter setting information and grain drying information of the grain microwave hot air drying device, and send the parameter setting information and grain drying information to the verification and analysis unit and the deviation control unit respectively; After receiving the parameter setting information, the verification and analysis unit immediately performs information deviation correction and supervision analysis on the parameter setting information, and compares and analyzes the obtained drying influence index to obtain a control signal and a normal signal; The deviation control unit is used to respond to normal signals and receive grain drying information, immediately perform drying supervision, control and analysis on the grain drying information, obtain stable signals and feedback instructions, and when generating feedback instructions, obtain the drying evaporation value corresponding to the feedback instructions, and perform discrimination processing on the drying evaporation value: If the drying evaporation value is greater than the preset drying evaporation value threshold, a downward adjustment signal is generated; If the drying evaporation value is greater than the preset drying evaporation value threshold, a high adjustment signal is generated; The performance evaluation unit is used to collect the working state data of the target drying device in response to the stable signal, and to perform operation performance supervision evaluation and analysis on the working state data, and to compare and analyze the obtained effective operation efficiency index to obtain a qualified signal and a unqualified signal; The refined operation efficiency unit is used to respond to unqualified signals and collect drying operation data of the target drying device, and perform refined information supervision feedback management analysis on the drying operation data to obtain ventilation management signals, microwave management signals and drying management signals.

3. The control system of the grain microwave and hot air combined drying device according to claim 2, It is characterized in that The information deviation correction supervision analysis process of the verification and analysis unit is as follows: The working time period of the grain microwave hot air drying device is collected and set as the time threshold, the grain microwave hot air drying device is set as the target drying device, the time threshold is divided into i sub-time periods, i is a natural number greater than zero, and the parameter setting information of the target drying device within the time threshold is obtained, the parameter setting information includes a temperature deviation value and a flow rate difference value, the temperature deviation value and the flow rate difference value are compared and analyzed with the preset temperature deviation value threshold and the preset flow rate difference value threshold recorded and stored internally, the sub-time period corresponding to the temperature deviation value greater than the preset temperature deviation value threshold, or the flow rate difference value greater than the preset flow rate difference value threshold is set as the deviation time period, the ratio between the number of deviation time periods and the total number of sub-time periods is set as the drying influence index, and the drying influence index is compared and analyzed with the preset drying influence index threshold recorded and stored internally: If the ratio between the drying impact index and the preset drying impact index threshold is less than 1, a normal signal is generated; if the ratio between the drying impact index and the preset drying impact index threshold is greater than or equal to 1, a control signal is generated.

4. The control system of the grain microwave and hot air combined drying device according to claim 3, It is characterized in that The temperature deviation value represents the difference between the actual drying temperature mean of the target drying device and the set drying temperature threshold; the flow rate difference value represents the portion of the actual ventilation flow rate of the target drying device that deviates from the set ventilation flow rate.

5. The control system of the grain microwave and hot air combined drying device according to claim 3, It is characterized in that The drying supervision, control and analysis process of the deviation control unit is as follows: Obtaining grain drying information of a target drying device within a time threshold, the grain drying information including a weight value before drying and a weight value after drying, and then obtaining a difference between the weight value before drying and the weight value after drying, and setting the difference between the weight value before drying and the weight value after drying as a drying evaporation value; The drying evaporation value is compared and analyzed with the preset drying evaporation value threshold value whose content is recorded and stored, and the difference between the drying evaporation value and the preset drying evaporation value threshold value is obtained, and the difference between the drying evaporation value and the preset drying evaporation value threshold value is set as the evaporation fault tolerance index, and the evaporation fault tolerance index is compared and analyzed with the preset evaporation fault tolerance index threshold value whose content is recorded and stored: If the ratio between the evaporation fault tolerance index and the preset evaporation fault tolerance index threshold is less than 1, a stabilization signal is generated; if the ratio between the evaporation fault tolerance index and the preset evaporation fault tolerance index threshold is greater than or equal to 1, a feedback instruction is generated.

6. The control system of the grain microwave and hot air combined drying device according to claim 1, It is characterized in that The operation performance supervision evaluation and analysis process of the performance evaluation unit is as follows: S1: Obtain the working status data of the target drying device within the time threshold, the working status data includes the total energy consumption value and the total value of grain drying, and at the same time obtain the air transport energy consumption value of the target drying device within the time threshold, the air transport energy consumption value represents the energy consumption value corresponding to the air transport standby period of the target drying device, and then obtain the value obtained by subtracting the air transport energy consumption value from the total energy consumption value, and set the value obtained by subtracting the air transport energy consumption value from the total energy consumption value as the drying energy consumption value; S2: Obtain the ratio between the total value of dried grain and the drying energy consumption value, set the ratio between the total value of dried grain and the drying energy consumption value as the effective operation efficiency index, and compare and analyze the effective operation efficiency index with the preset effective operation efficiency index threshold value stored in the internal data entry: If the ratio between the effective operation efficiency index and the preset effective operation efficiency index threshold is less than 1, a qualified signal is generated; if the ratio between the effective operation efficiency index and the preset effective operation efficiency index threshold is greater than or equal to 1, a failed signal is generated.

7. The control system of the grain microwave and hot air combined drying device according to claim 1, It is characterized in that The detailed information supervision feedback management analysis process of the detailed operation efficiency unit is as follows: The drying operation data of the target drying device within the time threshold is obtained. The drying operation data includes the ventilation efficiency value and the microwave energy efficiency value. The ventilation efficiency value and the microwave energy efficiency value are compared and analyzed with the preset ventilation efficiency value threshold and the preset microwave energy efficiency value threshold that are recorded and stored internally: If the ventilation efficiency value is less than the preset ventilation efficiency value threshold, and the microwave energy efficiency value is less than the preset microwave energy efficiency value threshold, no signal is generated; If the ventilation efficiency value is greater than or equal to the preset ventilation efficiency value threshold, and the microwave energy efficiency value is less than the preset microwave energy efficiency value threshold, a ventilation management signal is generated; If the ventilation efficiency value is less than the preset ventilation efficiency value threshold, and the microwave energy efficiency value is greater than or equal to the preset microwave energy efficiency value threshold, a microwave management signal is generated; If the ventilation efficiency value is greater than or equal to the preset ventilation efficiency value threshold, and the microwave energy efficiency value is greater than or equal to the preset microwave energy efficiency value threshold, a drying management signal is generated; The ventilation efficiency value represents the ratio between the operating efficiency of the ventilation components in the target drying device and the total energy consumption within the time threshold; The microwave energy efficiency value represents the ratio between the operating efficiency of the microwave component and the total energy consumption.

Images