CN111708395B - Automatic control system and method for micro malting - Google Patents
Automatic control system and method for micro malting Download PDFInfo
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- CN111708395B CN111708395B CN202010623076.5A CN202010623076A CN111708395B CN 111708395 B CN111708395 B CN 111708395B CN 202010623076 A CN202010623076 A CN 202010623076A CN 111708395 B CN111708395 B CN 111708395B
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Abstract
The invention relates to the technical field of control systems, in particular to a miniature automatic wheat-making control system, which is characterized in that: the system comprises a central controller, a refrigerator, a drying box, a germination box and a wheat soaking box, wherein the refrigerator is respectively connected with the germination box and the wheat soaking box, the refrigerator, the drying box, the germination box and the wheat soaking box are respectively connected with the central controller, and the central controller comprises a classification processing module, a temperature control module, an air control regulation module and a spray control module.
Description
The invention belongs to the field of novel automatic control systems, and particularly relates to a miniature control system which is particularly suitable for a malting process.
Background
The automatic control of the existing micro-wheat equipment is lagged behind, each step of operation needs to be manually carried out, and the setting and control of each parameter need to be manually checked and verified; the wheat soaking process has no blast aeration function; the requirement of production equipment is seriously separated in experimental research.
The existing micro wheat-making machine has the disadvantages of low automation control degree, unstable temperature control, unmatched wheat-making process and actual conditions, incapability of accurately providing the temperature, humidity, oxygen content and ventilation quantity required by wheat-making, and difficulty in realizing high-quality wheat-making.
Disclosure of Invention
The invention aims to solve the problems, and provides a micro automatic control system for wheat preparation. The wheat soaking refrigerator is respectively connected with the germination box and the wheat soaking box, the refrigerator, the drying box, the germination box and the wheat soaking box are respectively connected and controlled with a central controller, the central controller comprises,
a classification processing module which generates a malting matrix P (Ai, Mi, Si, Ei) according to the kind of the prefabricated malt selected by the client and the data parameters of the prefabricated malt, wherein Ai represents the kind of the malt selected by the client to be produced, Mi represents the quality of the current prefabricated barley, Si represents the humidity of the current prefabricated barley, EI represents the volume of the current prefabricated barley, and i represents a coefficient;
the temperature control module receives information of a sensor in the box body, monitors and adjusts the temperature in the wheat soaking box and the germination box, and a temperature control adjusting matrix T (Ai, Wi, Ci, Ji and Qi) is arranged in the germination box, wherein Ai represents the type of malt selected and produced by a customer, Wi represents a malting error coefficient, Ci represents a preset standard temperature, Ji represents the real-time temperature in the box body, and Qi represents the temperature difference value in an allowable range;
the wind control adjusting module receives information of sensors in the box body, monitors the contents of oxygen, carbon dioxide and humidity in the three boxes, controls the air inlet power and the air inlet duration of the fan, and is internally provided with a wind control matrix H (Yi, Di, Fi and Ji), wherein Yi represents the real-time content of oxygen in the box body, Di represents the real-time content of carbon dioxide in the box body, Fi represents the real-time data of humidity in the box body, and Ji represents the real-time temperature in the box body.
The spraying control module receives information of a sensor in the box body, monitors humidity in the box body, meets the humidity requirement in the box body by controlling the spray head to spray water, and is internally provided with a spraying control matrix K (Ai, Fi, F0i, ki), wherein Ai represents the type of the malt prefabricated by a client, Fi represents a real-time humidity value in the germination box, F0i represents a preset spraying humidity value, ki represents a humidity allowable variation range value
Further, the wheat steeping box mainly comprises a wheat steeping box body, a material support, a water pump and an air pump, the water pump and the air pump are arranged on the lower portion of the wheat steeping box body, a spraying nozzle is arranged on the upper portion of the wheat steeping box body, the material support is provided with a sensor on the lower portion of the material support, a high-position overflow port, an air inlet and an air outlet are arranged on the top of the wheat steeping box body, the air inlet is connected with the air pump, a low-position overflow port, a chilled water outlet and a hot water circulating pipe crossing are arranged on the lower portion of the wheat steeping box body, the chilled water outlet is communicated with a refrigerator through a pipeline, the water pump is connected with the hot water circulating pipe crossing through a heater, a wheat steeping temperature sensor is arranged in the wheat steeping box body, an exhaust fan is further arranged on the bottom.
Furthermore, the germination box mainly comprises a germination box body, a material support, a water pump and a spray pump, wherein the material support is arranged at the upper part of the germination box body, the water pump and the spray pump are arranged at the lower part of the germination box body, a chilled water outlet, a water intake and a hot water circulating pipeline intersection are also arranged at the middle part of the germination box body, a sensor and a spray nozzle are arranged, the chilled water outlet is communicated with the refrigerator through a pipeline, the water intake is communicated with a tap water pipeline, a water pump heater is communicated with the hot water circulating pipeline, and the spray pump is connected with a spray nozzle of.
Further, the drying oven mainly comprises a drying box body, a drying material support, a guide plate and a fan, the drying material support and the guide plate are arranged on the upper portion of the drying box body, the guide plate is located on the lower portion of the drying material support, the fan is installed on the lower portion of the guide plate, a return air inlet is formed in the drying material support, an air outlet is formed in the top of the drying box body, an air inlet end on the fan is communicated with the return air inlet, a heater is installed at the air inlet end, an air outlet end of the fan is connected with the drying box body through an air inlet.
Further, the classification processing module sets a malting matrix P (Ai, Mi, Si, Ei) according to the malting type required by the user and the data parameters of the pre-produced malting, wherein Ai represents the malt type selected by the client to produce, Mi represents the quality of the current pre-produced barley, Si represents the humidity of the current pre-produced barley, EI represents the volume of the pre-produced barley, and i represents a coefficient. In the embodiment, the weighting coefficient Q of the malting data, the preset parameter Q0 in the processing module,
in the formula, Ei represents the volume of the current pre-produced barley, E0 represents the volume standard value of the current pre-produced barley, Mi represents the quality of the current pre-produced barley, M0 represents the quality standard value of the current pre-produced barley, Si represents the humidity of the current pre-produced barley, and S0 represents the standard value of the current pre-produced barley. The method comprises the steps that Ei, Mi and Si are obtained by measuring production material data before production, E0, M0 and S0 are obtained by a wheat production data database, a preset parameter Q0 is arranged in a processing module, a weighting coefficient Q of malting data is compared with a preset parameter Q0, if the weighting coefficient Q is within a preset error interval, the batch of production materials are determined to be standard production materials, and malting process data adopt process data in a formula which is prefabricated and matched in the database. If the error exceeds a preset error interval, recording the difference value of the Q value and Q0 as a malting error coefficient Wi, and adjusting part of the process in the malting process according to Wi.
Furthermore, the temperature control adjusting module has the temperature control adjusting principle that when the real-time water temperature of the box body is higher than the set temperature of the formula, the temperature control adjusting module controls the closing of the flow stopping valve set to enable cold water to be input into the box body from the chilled water outlet, the flow stopping valve set comprises a flow stopping valve and a flow limiting valve, the flow stopping valve is arranged on a pipeline close to the water inlet, and the water inlet can be completely cut off after the flow stopping valve is closed, so that water cannot flow into the pipe through the water inlet and the temperature reduction is stopped; the flow limiting valve is arranged at any position between the check valve and the water outlet, can be arranged in the middle or is close to the water outlet, the flow limiting valve can be closed to partially cut off water flow in the water pipe, the specific cut-off ratio can be set according to actual conditions, such as half or one fifth, so as to control the speed and degree of water temperature reduction, when the ratio is lower than the formula requirement, the temperature control module controls the valve of the hot water inlet to be closed to enable hot water to flow into the circulating cooling pipe, and the circulating cooling pipe emits heat to water in the box body so as to enable the water temperature to be increased; when the temperature is reduced in the temperature reduction process, the input frozen water naturally overflows out of the tank from the high-level overflow port and enters a drainage system in a high-level operation mode; the low-level operation mode naturally overflows from the low-level overflow port and enters a drainage system through an electrically operated valve externally connected with the low-level overflow port.
Specifically, the temperature control adjusting module is connected with a temperature sensor in the box body, monitors the temperature in real time and adjusts the temperature, the temperature control adjusting module is used for adjusting the temperature of the wheat soaking box and the temperature of the germination box, and a temperature control adjusting matrix T (Ai, Wi, Ci, Ji, Qi) is arranged in the temperature adjusting module, wherein Ai represents the type of malt selected by a customer to produce, Wi represents a wheat making error coefficient, Ci represents a preset standard temperature, Ji represents the real-time temperature in the box body, and Qi represents the temperature difference value in an allowable range. Under the condition of normal work, the temperature sensor detects the temperature in the box body in real time. And outputting the data to a temperature adjusting module, analyzing the data of a temperature sensor through the temperature adjusting module, when the real-time temperature Ji is greater than Ci + Qi x (1+ Wi), controlling the closing of the flow stopping valve group by the temperature control module to input cold water corresponding to a preset temperature into the box body from a cold water outlet 14, when the real-time temperature Ji is less than Ci-Qi x (1+ Wi), controlling hot water with a preset temperature g0 of the water heater to be input into a circulating heating pipeline (not shown in the figure) from a hot water inlet to circularly heat water in the box body, and when the real-time temperature Ji is less than Ci + Qi x (1+ Wi) and greater than Ci-Qi x (1+ Wi), stopping adjusting the water temperature by the temperature control module and continuously monitoring the temperature in real time.
Further, for temperature adjustment is stable, the temperature control adjustment module is internally provided with a temperature change level matrix T (P1, P2, P3), wherein P1 represents that the temperature change interval is 2 degrees celsius, P2 represents that the temperature change interval is 4 degrees celsius, and P3 represents that the temperature change interval is 6 degrees celsius. According to different temperature change grades, different temperature adjusting modes are adopted, and the cooling temperature adjustment is specifically,
when the temperature of input cold water is G0 ═ t0+1.5 × (y + Wi) centigrade when 0< | Ji-Ci | < p1, wherein G0 represents the temperature of the input cold water, t0 represents the preset temperature of the input cold water, Wi represents the malting error coefficient, y represents the natural coefficient, and y takes the value of 1. And the flow stopping valve is opened, the flow limiting ratio of the flow stopping valve is one fifth, the temperature change is not large, and the temperature is slowly adjusted to be kept in a stable range.
When P1< | Ji-Ci | < P2, the temperature of input cold water is G0 ═ t0 ℃, and the flow limiting ratio of the shutoff valve is half.
When p2< | Ji-Ci | < p3, the temperature of input cold water is G0 ═ t0-1.5 × (y + Wi), the shutoff valve does not limit the flow, and the adjusting speed is accelerated.
When P3< | Ji-Ci | is input, the temperature of input cold water is GO equal to 1.5 × t0, the shutoff valve does not limit the flow, and the adjusting speed is accelerated.
By adopting a nonlinear temperature adjusting mode, the temperature can be adjusted more stably, and the temperature can not fluctuate greatly due to severe change of the external environment.
The temperature regulation during the temperature rise is specifically that,
when 0< | Ji-Ci | < p1, the temperature of hot water in the circulating pipeline is g0 ═ Cix (C + Wi), wherein g0 represents the temperature of hot water in the circulating pipeline, and Ci represents the preset standard temperature; c is a natural coefficient and takes the value of 2; wi is the malting error coefficient.
When P1< | Ji-Ci | < P2, the temperature of hot water in the circulating pipeline is g0 ═ Ci × C ℃.
When p2< | Ji-Ci | < p3, the temperature of hot water in the circulating pipeline is g0 ═ 3 × Ci.
When P3< | Ji-Ci | is in use, the temperature of hot water in the circulating pipeline is g0 ═ 4 × Ci.
Specifically, the wind control adjusting module is connected with a sensor in the box body and monitors the content of oxygen, carbon dioxide and humidity in the three boxes in real time, a wind control matrix H (Yi, Di, Fi and Ji) is arranged in the wind control adjusting module, wherein Yi represents the real-time content of oxygen in the box body, Di represents the real-time content of carbon dioxide in the box body, Fi represents the real-time data of humidity in the box body, and Ji represents the real-time temperature in the box body.
The wind control adjusting module is divided into a dry soaking ventilation mode and a wet soaking ventilation mode when controlling the wheat soaking box 5.
Setting a wind control data weighting parameter MS in a wet dipping mode, presetting a wind control data weighting parameter MS0 in a processing module,
wherein Yi represents the real-time oxygen content in the box body, and YS0 represents the preset oxygen content in the box body; di represents the real-time carbon dioxide content in the box body, and DS0 represents the preset carbon dioxide content in the box body; fi represents the real-time humidity in the box body, and FS0 represents the preset humidity in the box body; ji represents the real-time temperature in the box body, and JS0 represents the preset temperature in the box body; k is a natural coefficient and takes a value of 0.3. In the wet-dipping exhaust mode, comparing the wind control data weighting parameter MS with a preset wind control weighting parameter MS0, if MS is less than MS0 and the difference value exceeds a preset allowable range MS0, starting ventilation, and in the wet-dipping mode, pushing air by an air pump to 8 air bubble stones at the bottom of the box through an air inlet, sending the air to the liquid level, and releasing the air into the box in a bubble form; the pressure in the box is positive in the process of feeding fresh air, and the fed air is mixed with the air in the box and then naturally discharged through the air outlet.
Setting a wind control data weighting parameter MG in a dry leaching mode, presetting a wind control data weighting parameter MG0 in a processing module,
where Yi represents the real-time oxygen content in the tank, and YG0 represents the preset oxygen content in the tank; di represents the real-time carbon dioxide content in the box body, and DG0 represents the preset carbon dioxide content in the box body; fi represents the real-time humidity in the box body, FG0 represents the preset humidity in the box body; ji represents the real-time temperature in the box body, and JG0 represents the preset temperature in the box body; k is a natural coefficient and takes a value of 0.3. Comparing the wind control data weighting parameter MG with a preset wind control weighting parameter MG0, if MG is larger than MG0 and the difference value exceeds a preset allowable range MG0, starting ventilation, sucking air from an interface on a material support in a dry immersion mode in a circulating mode, sending the air into a fan through a suction port 15, sending the air into a wheat layer in the box from a circulating air port 16, passing through a wheat room and then circulating through the fan; the opening of the interface is properly adjusted in the using process, so that part of fresh air is mixed with air in the box and then enters the fan; passes through the wheat layer and is discharged outside the box.
Furthermore, when the wind control module controls the germination box, a wind control data weighting parameter MF is set, a preset wind control data weighting parameter MF0 is preset,
wherein Yi represents the real-time oxygen content in the box body, and YF0 represents the preset oxygen content in the box body; di represents the real-time carbon dioxide content in the box body, and DF0 represents the preset carbon dioxide content in the box body; fi represents the real-time humidity in the box body, and FF0 represents the preset humidity in the box body; ji represents the real-time temperature in the box body, and JF0 represents the preset temperature in the box body; k is a natural coefficient and takes a value of 0.3. Comparing the wind control data weighting parameter MF with a preset weighting parameter MF0, if the absolute value MF0-MS0 exceeds a preset allowable range MF0, controlling the fan to operate by the wind control module, switching an air valve from the air sucked by an interface to A, B through the fan, and closing an A port to exhaust air; the air is exhausted to the outside of the box through the port B, negative pressure is generated in the box in the air exhaust process, and new air in the box is naturally sucked from the port; the port B is closed to supply air; the air in the box is pressurized in the air supply process, and the air in the box is naturally exhausted from the interface.
Further, when the air control module controls the drying box, large-air-volume ventilation is adopted, and an air control temperature difference matrix Th (Ai, Ji, Ci, Ph1, Ph2, Ph3) is set, wherein Ai represents the types of the pre-malt customers, Ji represents the real-time temperature in the drying box, Ci represents the preset temperature in the drying box, Ph1 represents the temperature change value to be 2, Ph2 represents the temperature change value to be 4, and Ph3 represents the temperature change value to be 8.
When Ji > Ci, only the fan is operated in the drying box.
When Ji is less than Ci and 0 is less than Ci-Ji and less than Ph1, the fan is operated, and the heating wires are operated, wherein the operation proportion of the heating wires is one fourth.
When Ji is less than Ci and Ph1 is less than Ci-Ji is less than Ph2, the fan is operated, and meanwhile, the heating wire is operated, wherein the operation proportion of the heating wire is half.
When the fan is operated when Ji is less than Ci and Ph2 is less than Ci-Ji is less than Ph3, the heating wires are operated, and the operation proportion of the heating wires is three-quarter.
And when Ji is less than Ci and Ph3 is less than Ci-Ji, the fan is operated, and simultaneously, the heating wires are operated and all are put into operation.
Furthermore, the spraying control module is connected with the spraying pump, receives information of a sensor in the box body, and satisfies humidity requirements in the box body by controlling the spraying nozzle to spray water, and a spraying control matrix K (Ai, Fi, F0i, ki) is arranged in the spraying control module, wherein Ai represents the type of the malt prefabricated by the customer, Fi represents a real-time humidity value in the germination box, F0i represents a preset spraying humidity value, and ki represents a humidity allowable variation range value
When Fi < F0i and | Fi-F0i | > k0, the spray control controls the water spray pump to start, and cold water is pushed into the spray head and then sprayed into the tank.
Compared with the prior art, the invention has the technical effects that the invention classifies the prefabricated barley materials in the malting process, sets different process manufacturing conditions according to the actual barley types and data to improve the manufacturing effect of malts of various varieties, monitors the temperature, the humidity and the oxygen content in three boxes in the malting process in real time, adjusts the environmental conditions required by malting in the boxes in real time through the central controller to achieve accurate control, controls the whole malting process by the central controller, is full-automatic, improves the malting precision and quality, and ensures that the actual process parameters are matched with the formula requirements.
Particularly, the temperature control adjusting module is connected with a temperature sensor in the box body, monitors the temperature in real time and adjusts the temperature, the temperature control adjusting module is used for adjusting the temperature of the wheat soaking box and the temperature of the germination box, and a temperature control adjusting matrix T (Ai, Wi, Ci, Ji, Qi) is arranged in the temperature adjusting module, wherein Ai represents the type of malt selected by a customer to produce, Wi represents a wheat making error coefficient, Ci represents a preset standard temperature, Ji represents the real-time temperature in the box body, and Qi represents the temperature difference value in an allowable range. Under the condition of normal work, the temperature sensor detects the temperature in the box body in real time. And output to the temperature regulation module, analyze the data of the temperature sensor through the temperature regulation module, when the real-time temperature Ji is greater than Ci + Qi x (1+ Wi), the temperature control module controls the closing of the flow stopping valve set to input cold water corresponding to the preset temperature into the tank body from the cold water outlet, when the real-time temperature Ji is less than Ci-Qi x (1+ Wi), the temperature control module controls the hot water with the preset temperature g0 of the water heater to be input into a circulating heating pipeline (not shown in the figure) from the hot water inlet to circularly heat the water in the tank body, when the real-time temperature Ji is less than Ci + Qi x (1+ Wi) and greater than Ci-Qi x (1+ Wi), the temperature control module stops adjusting the water temperature and continues to monitor the temperature in real time, in order to make the temperature regulation more stable, the temperature control module is internally provided with a temperature change grade matrix T (p1, p2, P3), wherein P1 indicates that the temperature change interval is 2 degrees centigrade, P2 indicates that the temperature change interval is 4 degrees centigrade, and P3 indicates that the temperature change interval is 6 degrees centigrade. According to different temperature change grades, different temperature adjusting modes are adopted, and the cooling temperature adjustment is specifically,
when the temperature of input cold water is G0 ═ t0+1.5 × (y + Wi) centigrade when 0< | Ji-Ci | < p1, wherein G0 represents the temperature of the input cold water, t0 represents the preset temperature of the input cold water, Wi represents the malting error coefficient, y represents the natural coefficient, and y takes the value of 1. And the flow stopping valve is opened, the flow limiting ratio of the flow stopping valve is one fifth, the temperature change is not large, and the temperature is slowly adjusted to be kept in a stable range.
When P1< | Ji-Ci | < P2, the temperature of input cold water is G0 ═ t0 ℃, and the flow limiting ratio of the shutoff valve is half.
When p2< | Ji-Ci | < p3, the temperature of input cold water is G0 ═ t0-1.5 × (y + Wi), the shutoff valve does not limit the flow, and the adjusting speed is accelerated.
When P3< | Ji-Ci | is input, the temperature of input cold water is GO equal to 1.5 × t0, the shutoff valve does not limit the flow, and the adjusting speed is accelerated.
By adopting a nonlinear temperature adjusting mode, the temperature can be adjusted more stably, and the temperature can not fluctuate greatly due to severe change of the external environment.
The temperature regulation during the temperature rise is specifically that,
when 0< | Ji-Ci | < p1, the temperature of hot water in the circulating pipeline is g0 ═ Cix (C + Wi), wherein g0 represents the temperature of hot water in the circulating pipeline, and Ci represents the preset standard temperature; c is a natural coefficient and takes the value of 2; wi is the malting error coefficient.
When P1< | Ji-Ci | < P2, the temperature of hot water in the circulating pipeline is g0 ═ Ci × C ℃.
When p2< | Ji-Ci | < p3, the temperature of hot water in the circulating pipeline is g0 ═ 3 × Ci.
When P3< | Ji-Ci | is in use, the temperature of hot water in the circulating pipeline is g0 ═ 4 × Ci. Therefore, according to the data difference of different barley and pre-produced barley, different temperature regulation modes are adopted, the accuracy of environmental parameters in the malting process is improved, and the temperature change process adopts linear regulation, so that the temperature change is more stable, and the temperature is maintained more stably.
Particularly, the wind control adjusting module receives information of sensors in the box body, monitors the contents of oxygen, carbon dioxide and humidity in the three boxes, controls the air inlet power and the air inlet duration of the fan, is internally provided with a wind control matrix H (Yi, Di, Fi and Ji), wherein Yi represents the real-time content of oxygen in the boxes, Di represents the real-time content of carbon dioxide in the boxes, Fi represents the real-time data of humidity in the boxes, and Ji represents the real-time temperature in the boxes, different malting process parameters Q are adopted for different malting processes, and the opening time of the fan is different.
Drawings
Fig. 1 is a control schematic diagram of the micro malting automation control system and method provided by the invention.
Fig. 2 is a schematic structural view of the malting box provided by the present invention.
Fig. 3 is a schematic structural view of the germination box provided by the invention.
Fig. 4 is a schematic structural diagram of a drying box provided by the invention.
Detailed Description
The above and further features and advantages of the present invention are described in more detail below with reference to the accompanying drawings.
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, which is a functional block diagram of a micro automatic control system for malting according to an embodiment of the present invention, the system for micro automatic control for malting includes a central controller 1, a refrigerator 2, a drying box 3, a germination box 4, and a malting box 5, and under the control of the central controller, the malting, germination and drying processes, which are the most important processes in the malting process, are completed through the malting box 5, the germination box 4, and the drying box 3. The wheat steeping refrigerator 2 is respectively connected with the germination box 3 and the wheat steeping box 5, the refrigerator 2, the drying box 3, the germination box 3 and the wheat steeping box 4 are respectively connected and controlled with the central controller 1, the central controller comprises,
a classification processing module which generates a malting matrix P (Ai, Mi, Si, Ei) according to the kind of the prefabricated malt selected by the client and the data parameters of the prefabricated malt, wherein Ai represents the kind of the malt selected by the client to be produced, Mi represents the quality of the current prefabricated barley, Si represents the humidity of the current prefabricated barley, EI represents the volume of the current prefabricated barley, and i represents a coefficient;
the temperature control module receives information of a sensor in the box body, monitors and adjusts the temperature in the wheat soaking box and the germination box, and a temperature control adjusting matrix T (Ai, Wi, Ci, Ji and Qi) is arranged in the germination box, wherein Ai represents the type of malt selected and produced by a customer, Wi represents a malting error coefficient, Ci represents a preset standard temperature, Ji represents the real-time temperature in the box body, and Qi represents the temperature difference value in an allowable range;
the wind control adjusting module receives information of sensors in the box body, monitors the contents of oxygen, carbon dioxide and humidity in the three boxes, controls the air inlet power and the air inlet duration of the fan, and is internally provided with a wind control matrix H (Yi, Di, Fi and Ji), wherein Yi represents the real-time content of oxygen in the box body, Di represents the real-time content of carbon dioxide in the box body, Fi represents the real-time data of humidity in the box body, and Ji represents the real-time temperature in the box body.
The spraying control module receives information of a sensor in the box body, monitors humidity in the box body, meets the humidity requirement in the box body by controlling the spray head to spray water, and is internally provided with a spraying control matrix K (Ai, Fi, F0i, ki), wherein Ai represents the type of the malt prefabricated by a client, Fi represents a real-time humidity value in the germination box, F0i represents a preset spraying humidity value, ki represents a humidity allowable variation range value
Specifically, as shown in fig. 2, the wheat steeping box mainly comprises a wheat steeping box body 6, a material support 7, a water pump and an air pump, the lower part of the wheat steeping box body 6 is provided with the water pump and the air pump, the upper part of the wheat steeping box body 6 is provided with a spray nozzle, the material support 7 is provided with a sensor 14 at the lower part of the material support, the top of the wheat steeping box body 6 is provided with a high-position overflow port 8, an air inlet 9 and an air outlet 10, the air inlet 10 is connected with the air pump, the lower part of the wheat steeping box body 6 is provided with a low-position overflow port 11, a chilled water outlet 12 and a hot water circulating pipe port 13, the chilled water outlet 12 is communicated with the refrigerator 2 through a pipeline, the water pump is connected with the hot water circulating pipe port 13 through a heater, the wheat steeping temperature sensor 16 is arranged in the wheat steeping box body 6, the exhaust fan is connected with the suction port 16 and the circulation port 15, respectively.
Specifically, as shown in fig. 3, the germination box mainly comprises a germination box body 17, a material support 18, a water pump and a spray pump, wherein the material support 18 is arranged at the upper part of the germination box body 17, the water pump and the spray pump are arranged at the lower part of the germination box body 17, a chilled water outlet 21, a water intake 20 and a hot water circulation pipe junction 20 are further arranged at the middle part of the germination box body 17, a sensor 19 is connected with a spray nozzle, the chilled water outlet 21 is communicated with the refrigerator 2 through a pipeline, the water intake 20 is communicated with a tap water pipeline, a water pump 22 is communicated with the hot water circulation pipe junction 20, and the spray pump is connected with the.
Specifically, as shown in fig. 4, the drying box mainly comprises a drying box body 23, a drying material support 24, a guide plate 26 and a fan, the drying material support 24 and the guide plate 26 are arranged on the upper portion of the drying box body 23, the guide plate 26 is located on the lower portion of the drying material support 24, the fan is installed on the lower portion of the guide plate 26, an air return opening is formed in the drying material support 24, an air outlet 22 is formed in the top of the drying box body 23, an air inlet end of the fan is communicated with the air return opening, a heater is installed at the air inlet end, an air outlet end of the fan is connected with the drying box body 23 through an air inlet.
Specifically, the classification processing module sets a malting matrix P (Ai, Mi, Si, Ei) according to the type of malting required by a user and data parameters of pre-produced malting, wherein Ai represents the type of malt selected by the customer to produce, Mi represents the quality of the current pre-produced barley, Si represents the humidity of the current pre-produced barley, EI represents the volume of the current pre-produced barley, and i represents a coefficient. In the embodiment, the weighting coefficient Q of the malting data, the preset parameter Q0 in the processing module,
wherein Ei represents the volume of the current pre-produced barley, E0 represents the volume standard value of the current pre-produced barley, Mi represents the quality of the current pre-produced barley, E0 represents the quality standard value of the current pre-produced barley, Si represents the humidity of the current pre-produced barley, and S0 represents the standard value of the current pre-produced barley. Wherein Ei, Mi, Si are obtained by measuring actual production barley before production, E0, M0, S0 are obtained by barley production data database.
Specifically, a preset parameter Q0 is set in the processing module, the weighting coefficient Q of the malting data is compared with a preset parameter Q0, if the weighting coefficient Q is within a preset error interval, the batch of production materials are determined to be standard production materials, and the malting process data are process data in a formula which is matched with the batch of production materials in advance in a database. If the error exceeds a preset error interval, recording the difference value of the Q value and Q0 as a malting error coefficient Wi, and adjusting part of the process in the malting process according to Wi.
Specifically, the temperature control regulation module has the temperature control regulation principle that when the real-time water temperature of the box body is higher than the set temperature of the formula, the temperature control regulation module controls the closing of a flow stopping valve set to enable cold water to be input into the box body from a chilled water outlet 12, the flow stopping valve set comprises a flow stopping valve and a flow limiting valve, wherein the flow stopping valve is arranged on a pipeline close to a water inlet, and the water inlet can be completely cut off after the flow stopping valve is closed, so that water cannot flow into the pipe through the water inlet, and the temperature reduction is stopped; the flow limiting valve is arranged at any position between the check valve and the water outlet, can be arranged in the middle or is close to the water outlet 12, the flow limiting valve can be closed to partially cut off water flow in the water pipe, the specific cut-off ratio can be set according to actual conditions, such as half or one fifth, so as to control the speed and degree of water temperature reduction, when the ratio is lower than the formula requirement, the temperature control module controls the valve of the hot water inlet to be closed to enable hot water to flow into the circulating cooling pipe, and the circulating cooling pipe emits heat to water in the box body so as to enable the water temperature to be increased; when the temperature is reduced in the temperature reduction process, the input frozen water naturally overflows out of the tank from the high-level overflow port 8 and enters a drainage system in a high-level operation mode; the low-level operation mode naturally overflows from the low-level overflow port 13 and enters a drainage system through an electrically operated valve externally connected with the low-level overflow port 11.
Specifically, the temperature control adjusting module is connected with a temperature sensor in the box body, monitors the temperature in real time and adjusts the temperature, the temperature control adjusting module is used for adjusting the temperature of the wheat soaking box and the temperature of the germination box, and a temperature control adjusting matrix T (Ai, Wi, Ci, Ji, Qi) is arranged in the temperature adjusting module, wherein Ai represents the type of malt selected by a customer to produce, Wi represents a wheat making error coefficient, Ci represents a preset standard temperature, Ji represents the real-time temperature in the box body, and Qi represents the temperature difference value in an allowable range. Under the condition of normal work, the temperature sensor detects the temperature in the box body in real time. And outputting the data to a temperature adjusting module, analyzing the data of a temperature sensor through the temperature adjusting module, when the real-time temperature Ji is greater than Ci + Qi x (1+ Wi), controlling the closing of a flow stopping valve group by the temperature control module to input cold water corresponding to a preset temperature into the box body from a cold water outlet 12, when the real-time temperature Ji is less than Ci-Qi x (1+ Wi), controlling hot water with a preset temperature g0 of a water heater to be input into a circulating heating pipeline (not shown in the figure) from a hot water inlet to circularly heat water in the box body, and when the real-time temperature Ji is less than Ci + Qi x (1+ Wi) and greater than Ci-Qi x (1+ Wi), stopping adjusting the water temperature by the temperature control module and continuously monitoring the temperature in real time.
Specifically, in order to make temperature adjustment more stable, the temperature control adjustment module is internally provided with a temperature change level matrix T (P1, P2, P3), wherein P1 indicates that the temperature change interval is 2 degrees celsius, P2 indicates that the temperature change interval is 4 degrees celsius, and P3 indicates that the temperature change interval is 6 degrees celsius. According to different temperature change grades, different temperature adjusting modes are adopted, and the cooling temperature adjustment is specifically,
when the temperature of input cold water is G0 ═ t0+1.5 × (y + Wi) centigrade when 0< | Ji-Ci | < p1, wherein G0 represents the temperature of the input cold water, t0 represents the preset temperature of the input cold water, Wi represents the malting error coefficient, y represents the natural coefficient, and y takes the value of 1. And the flow stopping valve is opened, the flow limiting ratio of the flow stopping valve is one fifth, the temperature change is not large, and the temperature is slowly adjusted to be kept in a stable range.
When P1< | Ji-Ci | < P2, the temperature of input cold water is G0 ═ t0 ℃, and the flow limiting ratio of the shutoff valve is half.
When p2< | Ji-Ci | < p3, the temperature of input cold water is G0 ═ t0-1.5 × (y + Wi), the shutoff valve does not limit the flow, and the adjusting speed is accelerated.
When P3< | Ji-Ci | is input, the temperature of input cold water is GO equal to 1.5 × t0, the shutoff valve does not limit the flow, and the adjusting speed is accelerated.
By adopting a nonlinear temperature adjusting mode, the temperature can be adjusted more stably, and the temperature can not fluctuate greatly due to severe change of the external environment.
The temperature regulation during the temperature rise is specifically that,
when 0< | Ji-Ci | < p1, the temperature of hot water in the circulating pipeline is g0 ═ Cix (C + Wi), wherein g0 represents the temperature of hot water in the circulating pipeline, and Ci represents the preset standard temperature; c is a natural coefficient and takes the value of 2; wi is the malting error coefficient.
When P1< | Ji-Ci | < P2, the temperature of hot water in the circulating pipeline is g0 ═ Ci × C ℃.
When p2< | Ji-Ci | < p3, the temperature of hot water in the circulating pipeline is g0 ═ 3 × Ci.
When P3< | Ji-Ci | is in use, the temperature of hot water in the circulating pipeline is g0 ═ 4 × Ci.
Specifically, the wind control adjusting module is connected with the sensors in the box body and monitors the content of oxygen, carbon dioxide and humidity in the three box bodies in real time, and a wind control matrix H is arranged in the wind control adjusting module
(Yi, Di, Fi and Ji), wherein Yi represents the real-time content of oxygen in the box body, Di represents the real-time content of carbon dioxide in the box body, Fi represents the real-time data of humidity in the box body, and Ji represents the real-time temperature in the box body.
The wind control adjusting module is divided into a dry soaking ventilation mode and a wet soaking ventilation mode when controlling the wheat soaking box 5.
Setting a wind control data weighting parameter MS in a wet dipping mode, presetting a wind control data weighting parameter MS0 in a processing module,
wherein Yi represents the real-time oxygen content in the box body, and YS0 represents the preset oxygen content in the box body; di represents the real-time carbon dioxide content in the box body, and DS0 represents the preset carbon dioxide content in the box body; fi represents the real-time humidity in the box body, and FS0 represents the preset humidity in the box body; ji represents the real-time temperature in the box body, and JS0 represents the preset temperature in the box body; k is a natural coefficient and takes a value of 0.3. In the wet-dipping air exhaust mode, comparing the wind control data weighting parameter MS with a preset wind control weighting parameter MS0, if MS is less than MS0 and the difference value exceeds a preset allowable range MS0, starting ventilation, and in the wet-dipping mode, pushing air by an air pump to send 8 air stones from an air inlet 9 to the bottom of the tank to the liquid level and releasing the air stones into the tank in a bubble form; the pressure in the box is positive in the process of feeding fresh air, and the fed air is mixed with the air in the box and then naturally discharged through the air outlet 10.
Setting a wind control data weighting parameter MG in a dry leaching mode, presetting a wind control data weighting parameter MG0 in a processing module,
where Yi represents the real-time oxygen content in the tank, and YG0 represents the preset oxygen content in the tank; di represents the real-time carbon dioxide content in the box body, and DG0 represents the preset carbon dioxide content in the box body; fi represents the real-time humidity in the box body, FG0 represents the preset humidity in the box body; ji represents the real-time temperature in the box body, and JG0 represents the preset temperature in the box body; k is a natural coefficient and takes a value of 0.3. Comparing the wind control data weighting parameter MG with a preset wind control weighting parameter MG0, if MG is larger than MG0 and the difference value exceeds a preset allowable range MG0, starting ventilation, sucking air from an interface on a material support in a dry immersion mode in a circulating mode, sending the air into a fan through a suction port 15, sending the air into a wheat layer in the box from a circulating air port 16, passing through a wheat room and then circulating through the fan; the opening of the interface is properly adjusted in the using process, so that part of fresh air is mixed with air in the box and then enters the fan; passes through the wheat layer and is discharged outside the box.
Specifically, the wind control module is provided with a wind control data weighting parameter MF when controlling the germination box 4, a preset wind control data weighting parameter MF0 is preset,
wherein Yi represents the real-time oxygen content in the box body, and YF0 represents the preset oxygen content in the box body; di represents the real-time carbon dioxide content in the box body, and DF0 represents the preset carbon dioxide content in the box body; fi represents the real-time humidity in the box body, and FF0 represents the preset humidity in the box body; ji represents the real-time temperature in the box body, and JF0 represents the preset temperature in the box body; k is a natural coefficient and takes a value of 0.3. Comparing the wind control data weighting parameter MF with a preset weighting parameter MF0, if the absolute value MF0-MS0 exceeds a preset allowable range MF0, controlling the fan to operate by the wind control module, switching an air valve from the air sucked by an interface to A, B through the fan, and closing an A port to exhaust air; the air is exhausted to the outside of the box through the port B, negative pressure is generated in the box in the air exhaust process, and new air in the box is naturally sucked from the port; the port B is closed to supply air; the air in the box is pressurized in the air supply process, and the air in the box is naturally exhausted from the interface.
Specifically, the wind control module adopts large-wind-volume ventilation when controlling the drying box 3, and sets a wind control temperature difference matrix Th (Ai, Ji, Ci, Ph1, Ph2, Ph3), wherein Ai represents the types of the customer-prepared malts, Ji represents the real-time temperature in the drying box, Ci represents the preset temperature in the drying box, Ph1 represents the temperature change value of 2, Ph2 represents the temperature change value of 4, and Ph3 represents the temperature change value of 8.
When Ji > Ci, only the fan is operated in the drying box.
When Ji is less than Ci and 0 is less than Ci-Ji and less than Ph1, the fan is operated, and the heating wires are operated, wherein the operation proportion of the heating wires is one fourth.
When Ji is less than Ci and Ph1 is less than Ci-Ji is less than Ph2, the fan is operated, and meanwhile, the heating wire is operated, wherein the operation proportion of the heating wire is half.
When the fan is operated when Ji is less than Ci and Ph2 is less than Ci-Ji is less than Ph3, the heating wires are operated, and the operation proportion of the heating wires is three-quarter.
And when Ji is less than Ci and Ph3 is less than Ci-Ji, the fan is operated, and simultaneously, the heating wires are operated and all are put into operation.
Specifically, the spraying control module is connected with a spraying pump, receives information of a sensor in the box, and satisfies humidity requirements in the box by controlling a spray head to spray water, and a spraying control matrix K (Ai, Fi, F0i, ki) is arranged in the spraying control module, wherein Ai represents the type of the malt prefabricated by a customer, Fi represents a real-time humidity value in a germination box, F0i represents a preset spraying humidity value, ki represents a humidity allowable variation range value
When Fi < F0i and | Fi-F0i | > k0, the spray control controls the water spray pump to start, and cold water is pushed into the spray head and then sprayed into the tank.
The invention classifies the prefabricated barley materials in the malting process, sets different process manufacturing conditions according to actual barley types and data so as to improve the manufacturing effect of malts of various varieties, monitors the temperature, the humidity and the oxygen content in three boxes in the malting process in real time, adjusts the environmental conditions required by malting in the boxes in real time through the central controller so as to achieve accurate control, and controls the whole malting process by the central controller, thereby being full-automatic, improving the malting precision and quality and ensuring that the actual process parameters are consistent with the formula requirements.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (8)
1. A miniature malting automated control system which characterized in that: comprises a central controller, a refrigerator, a drying box, a germination box and a wheat soaking box, wherein the refrigerator is respectively connected with the germination box and the wheat soaking box, the refrigerator, the drying box, the germination box and the wheat soaking box are respectively connected with the central controller, the central controller comprises,
a classification processing module which generates a malting matrix P (Ai, Mi, Si, Ei) according to the kind of the pre-malt and the actual barley data, wherein Ai represents the kind of the malt pre-selected for production, Mi represents the quality of the current pre-produced barley, Si represents the humidity of the current pre-produced barley, and Ei represents the volume of the current pre-produced barley;
the temperature control module receives information of a sensor in the box body, adjusts the temperature in the wheat soaking box and the germination box, and is internally provided with a temperature control adjusting matrix T (Ai, Wi, Ci, Ji and Qi), wherein Ai represents the type of the pre-selected malt to be produced, Wi represents a malting error coefficient, Ci represents a preset standard temperature, Ji represents the real-time temperature in the box body, and Qi represents the temperature difference value in an allowable range;
the wind control adjusting module receives information of sensors in the box body, monitors the contents of oxygen, carbon dioxide and humidity in the three box bodies, adjusts the wind inlet power and the wind inlet duration of the fan, and is internally provided with a wind control matrix H (Yi, Di, Fi and Ji), wherein Yi represents the real-time content of oxygen in the box body, Di represents the real-time content of carbon dioxide in the box body, Fi represents the real-time data of humidity in the box body, and Ji represents the real-time temperature in the box body;
the spraying control module receives information of a sensor in the box body, monitors the humidity in the box body, and meets the humidity requirement in the box body by controlling the spray head to spray water, and a spraying control matrix K (Ai, Fi, F0i, ki) is arranged in the spraying control module, wherein Ai represents the type of the malt prefabricated by a client, Fi represents the real-time humidity value in the germination box, F0i represents the preset spraying humidity value, and ki represents the allowable humidity variation range value;
the classification processing module is provided with a malting data weighting coefficient Q, a parameter Q0 preset in the processing module,
wherein Ei represents the volume of the current pre-produced barley, E0 represents the volume standard value of the current pre-produced barley, Mi represents the quality of the current pre-produced barley, M0 represents the quality standard value of the current pre-produced barley, Si represents the humidity standard value of the current pre-produced barley, and S0 represents the humidity standard value of the current pre-produced barley; wherein Ei, Mi, Si are obtained by measuring actual barley data before production, E0, M0, S0 are obtained by barley production data database; comparing the weighting coefficient Q of the malting data with a preset parameter Q0, if the weighting coefficient Q is within a preset error interval, determining that the pre-produced barley is the standard production barley, adopting the existing standard process data in the database for the malting process data, if the error exceeds the preset error interval, recording the absolute value of the difference between the Q value and Q0 as a malting error coefficient Wi, and adjusting partial process in the malting process according to Wi.
2. The automatic micro malting control system according to claim 1, wherein the temperature control module controls the closing of the flow stopping valve set to enable cold water to be input into the tank from the cold water outlet at a corresponding preset temperature when the real-time temperature Ji is greater than Ci + Qi x (1+ Wi), controls the water heater to heat hot water at a preset temperature g0 to be input into the circulation heating pipeline from the hot water inlet to circularly heat water in the tank when the real-time temperature Ji is less than Ci-Qi x (1+ Wi) and greater than Ci-Qi x (1+ Wi), and stops adjusting the water temperature to continue monitoring the temperature in real time when the real-time temperature Ji is less than Ci + Qi x (1+ Wi) and greater than Ci-Qi x (1+ Wi).
3. The automated micro-malting control system according to claim 2, wherein the temperature control module is internally provided with a temperature change level matrix T (p1, p2, p3), wherein p1 represents a temperature change interval of 2 degrees Celsius, p2 represents a temperature change interval of 4 degrees Celsius, and p3 represents a temperature change interval of 6 degrees Celsius, and the temperature drop is adjusted to,
when 0< | Ji-Ci | < p1, the temperature of input cold water is G0 ═ t0+1.5 × (y + Wi) centigrade, wherein G0 represents the temperature of the input cold water, t0 represents the preset temperature of the input cold water, Wi represents the malting error coefficient, y represents the natural coefficient, y takes the value of 1, the stop valve is opened, and the flow limiting ratio of the stop valve is one fifth;
when P1< | Ji-Ci | < P2, the temperature of input cold water is G0 ═ t0 ℃, and the flow limiting proportion of the shutoff valve is one half;
when p2< | Ji-Ci | < p3, the temperature of input cold water is G0 ═ t0-1.5 × (y + Wi), and the shutoff valve does not limit the flow;
when P3< | Ji-Ci | is input, the temperature of input cold water is G0 ═ 1.5 × t0, and the shutoff valve does not limit the flow.
4. The automated micro-malting control system of claim 3, wherein the temperature control module, the temperature of the temperature rise is adjusted to,
when 0< | Ji-Ci | < p1, the temperature of hot water in the circulating pipeline is g0 ═ Cix (C + Wi), wherein g0 represents the temperature of hot water in the circulating pipeline, and Ci represents the preset standard temperature; c is a natural coefficient and takes the value of 2; wi is a malting error coefficient;
when P1< | Ji-Ci | < P2, the temperature of hot water in the circulating pipeline is g0 ═ Ci × C ℃;
when p2< | Ji-Ci | < p3, the temperature of hot water in the circulating pipeline is g0 ═ 3 × Ci;
when P3< | Ji-Ci | is in use, the temperature of hot water in the circulating pipeline is g0 ═ 4 × Ci.
5. The micro malting automation control system of claim 1, wherein the wind control adjustment module is provided with a wet steeping ventilation mode when controlling a steeping bin;
in the wet dipping ventilation mode, a wind control data weighting parameter MS is set, a wind control data weighting parameter MS0 is preset in a processing module,
wherein Yi represents the real-time oxygen content in the box body, and YS0 represents the preset oxygen content in the box body; di represents the content of real-time carbon dioxide in the box body, DS0 represents the content of the preset carbon dioxide in the box body, Fi represents the real-time humidity in the box body, FS0 represents the preset humidity in the box body, Ji represents the real-time temperature in the box body, JS0 represents the preset temperature in the box body, and K is a natural coefficient and takes the value of 0.3; and in the wet soaking exhaust mode, comparing the wind control data weighting parameter MS with a preset wind control weighting parameter MS0, and if the MS is less than MS0 and the difference value exceeds a preset allowable range MS0, starting ventilation.
6. The micro malting automation control system of claim 5, wherein when the wind control adjusting module controls the malting tank, a dry steeping ventilation mode is set;
in the dry immersion ventilation mode, a wind control data weighting parameter MG is set, a wind control data weighting parameter MG0 is preset in a processing module,
where Yi represents the real-time oxygen content in the tank, and YG0 represents the preset oxygen content in the tank; di represents the content of real-time carbon dioxide in the box body, DG0 represents the content of preset carbon dioxide in the box body, Fi represents the real-time humidity in the box body, FG0 represents the preset humidity in the box body, Ji represents the real-time temperature in the box body, and JG0 represents the preset temperature in the box body; k is a natural coefficient and takes the value of 0.3; and comparing the wind control data weighting parameter MG with a preset wind control weighting parameter MG0, and starting ventilation if the MG is larger than MG0 and the MG-MG0 exceeds a preset allowable range MG 0.
7. The micro-malting automation control system according to claim 5, wherein the wind control adjustment module, when adjusting the germination box, is provided with a wind control data weighting parameter MF, preset with a preset wind control data weighting parameter MF0,
wherein Yi represents the real-time oxygen content in the box body, and YF0 represents the preset oxygen content in the box body; di represents the real-time carbon dioxide content in the box body, DF0 represents the preset carbon dioxide content in the box body, Fi represents the real-time humidity in the box body, FF0 represents the preset humidity in the box body, Ji represents the real-time temperature in the box body, JF0 represents the preset temperature in the box body, and K is a natural coefficient and takes the value of 0.3; comparing the wind control data weighting parameter MF with a preset weighting parameter MF0, if the absolute value MF-MF0 absolute value exceeds a preset allowable range MF0, the wind control module controls the fan to operate, air sucked by an interface is converted into an air valve through the fan to A, B, and an opening A is closed to exhaust air; the air is exhausted to the outside of the box through the port B, negative pressure is generated in the box in the air exhaust process, and new air in the box is naturally sucked from the port; the port B is closed to supply air; the air in the box is pressurized in the air supply process, and the air in the box is naturally exhausted from the interface.
8. The automated micro-malting control system according to claim 5, wherein when said air-controlled adjusting module controls the drying box, an air-controlled temperature difference matrix Th (Ai, Ji, Ci, Ph1, Ph2, Ph3) is provided therein, wherein Ai represents the kind of customer's prefabricated malt, Ji represents the real-time temperature in the drying box, Ci represents the preset temperature in the drying box, Ph1 represents the temperature change value of 2, Ph2 represents the temperature change value of 4, and Ph3 represents the temperature change value of 8;
when Ji is greater than Ci, only operating a fan in the drying box;
when Ji is less than Ci and 0 is less than Ci-Ji and less than Ph1, the fan is operated, and the heating wires are operated, wherein the operation proportion of the heating wires is one fourth;
when Ji is less than Ci and Ph1 is less than Ci-Ji is less than Ph2, the fan is operated, and meanwhile, the heating wires are operated, wherein the input operation proportion of the heating wires is one half;
when Ji is less than Ci and Ph2 is less than Ci-Ji is less than Ph3, the fan is operated, and meanwhile, the heating wires are operated, wherein the operation proportion of the heating wires is three quarters;
and when Ji is less than Ci and Ph3 is less than Ci-Ji, the fan is operated, and simultaneously, the heating wires are operated and all are put into operation.
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